commit a81be736b860c98416f646fa1f5cd620cbb0f667 Author: Mikhail Grebenkin Date: Tue Dec 12 18:06:43 2017 +0300 initial commit diff --git a/.idea/kea_for_miners.iml b/.idea/kea_for_miners.iml new file mode 100644 index 0000000..7fa006d --- /dev/null +++ b/.idea/kea_for_miners.iml @@ -0,0 +1,14 @@ + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..4efe6ab --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 0000000..cfc48a2 --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/workspace.xml b/.idea/workspace.xml new file mode 100644 index 0000000..1424f80 --- /dev/null +++ b/.idea/workspace.xml @@ -0,0 +1,335 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + print + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

blocks) we
+            # want to drop leading newlines
+            data = token["data"]
+            self.processSpaceCharacters = self.processSpaceCharactersNonPre
+            if (data.startswith("\n") and
+                self.tree.openElements[-1].name in ("pre", "listing", "textarea") and
+                    not self.tree.openElements[-1].hasContent()):
+                data = data[1:]
+            if data:
+                self.tree.reconstructActiveFormattingElements()
+                self.tree.insertText(data)
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                # The tokenizer should always emit null on its own
+                return
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertText(token["data"])
+            # This must be bad for performance
+            if (self.parser.framesetOK and
+                any([char not in spaceCharacters
+                     for char in token["data"]])):
+                self.parser.framesetOK = False
+
+        def processSpaceCharactersNonPre(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertText(token["data"])
+
+        def startTagProcessInHead(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagBody(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": "body"})
+            if (len(self.tree.openElements) == 1 or
+                    self.tree.openElements[1].name != "body"):
+                assert self.parser.innerHTML
+            else:
+                self.parser.framesetOK = False
+                for attr, value in token["data"].items():
+                    if attr not in self.tree.openElements[1].attributes:
+                        self.tree.openElements[1].attributes[attr] = value
+
+        def startTagFrameset(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": "frameset"})
+            if (len(self.tree.openElements) == 1 or self.tree.openElements[1].name != "body"):
+                assert self.parser.innerHTML
+            elif not self.parser.framesetOK:
+                pass
+            else:
+                if self.tree.openElements[1].parent:
+                    self.tree.openElements[1].parent.removeChild(self.tree.openElements[1])
+                while self.tree.openElements[-1].name != "html":
+                    self.tree.openElements.pop()
+                self.tree.insertElement(token)
+                self.parser.phase = self.parser.phases["inFrameset"]
+
+        def startTagCloseP(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+
+        def startTagPreListing(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            self.processSpaceCharacters = self.processSpaceCharactersDropNewline
+
+        def startTagForm(self, token):
+            if self.tree.formPointer:
+                self.parser.parseError("unexpected-start-tag", {"name": "form"})
+            else:
+                if self.tree.elementInScope("p", variant="button"):
+                    self.endTagP(impliedTagToken("p"))
+                self.tree.insertElement(token)
+                self.tree.formPointer = self.tree.openElements[-1]
+
+        def startTagListItem(self, token):
+            self.parser.framesetOK = False
+
+            stopNamesMap = {"li": ["li"],
+                            "dt": ["dt", "dd"],
+                            "dd": ["dt", "dd"]}
+            stopNames = stopNamesMap[token["name"]]
+            for node in reversed(self.tree.openElements):
+                if node.name in stopNames:
+                    self.parser.phase.processEndTag(
+                        impliedTagToken(node.name, "EndTag"))
+                    break
+                if (node.nameTuple in specialElements and
+                        node.name not in ("address", "div", "p")):
+                    break
+
+            if self.tree.elementInScope("p", variant="button"):
+                self.parser.phase.processEndTag(
+                    impliedTagToken("p", "EndTag"))
+
+            self.tree.insertElement(token)
+
+        def startTagPlaintext(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.plaintextState
+
+        def startTagHeading(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            if self.tree.openElements[-1].name in headingElements:
+                self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagA(self, token):
+            afeAElement = self.tree.elementInActiveFormattingElements("a")
+            if afeAElement:
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "a", "endName": "a"})
+                self.endTagFormatting(impliedTagToken("a"))
+                if afeAElement in self.tree.openElements:
+                    self.tree.openElements.remove(afeAElement)
+                if afeAElement in self.tree.activeFormattingElements:
+                    self.tree.activeFormattingElements.remove(afeAElement)
+            self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagFormatting(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagNobr(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            if self.tree.elementInScope("nobr"):
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "nobr", "endName": "nobr"})
+                self.processEndTag(impliedTagToken("nobr"))
+                # XXX Need tests that trigger the following
+                self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagButton(self, token):
+            if self.tree.elementInScope("button"):
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "button", "endName": "button"})
+                self.processEndTag(impliedTagToken("button"))
+                return token
+            else:
+                self.tree.reconstructActiveFormattingElements()
+                self.tree.insertElement(token)
+                self.parser.framesetOK = False
+
+        def startTagAppletMarqueeObject(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.tree.activeFormattingElements.append(Marker)
+            self.parser.framesetOK = False
+
+        def startTagXmp(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.framesetOK = False
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagTable(self, token):
+            if self.parser.compatMode != "quirks":
+                if self.tree.elementInScope("p", variant="button"):
+                    self.processEndTag(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            self.parser.phase = self.parser.phases["inTable"]
+
+        def startTagVoidFormatting(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+            self.parser.framesetOK = False
+
+        def startTagInput(self, token):
+            framesetOK = self.parser.framesetOK
+            self.startTagVoidFormatting(token)
+            if ("type" in token["data"] and
+                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
+                # input type=hidden doesn't change framesetOK
+                self.parser.framesetOK = framesetOK
+
+        def startTagParamSource(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagHr(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+            self.parser.framesetOK = False
+
+        def startTagImage(self, token):
+            # No really...
+            self.parser.parseError("unexpected-start-tag-treated-as",
+                                   {"originalName": "image", "newName": "img"})
+            self.processStartTag(impliedTagToken("img", "StartTag",
+                                                 attributes=token["data"],
+                                                 selfClosing=token["selfClosing"]))
+
+        def startTagIsIndex(self, token):
+            self.parser.parseError("deprecated-tag", {"name": "isindex"})
+            if self.tree.formPointer:
+                return
+            form_attrs = {}
+            if "action" in token["data"]:
+                form_attrs["action"] = token["data"]["action"]
+            self.processStartTag(impliedTagToken("form", "StartTag",
+                                                 attributes=form_attrs))
+            self.processStartTag(impliedTagToken("hr", "StartTag"))
+            self.processStartTag(impliedTagToken("label", "StartTag"))
+            # XXX Localization ...
+            if "prompt" in token["data"]:
+                prompt = token["data"]["prompt"]
+            else:
+                prompt = "This is a searchable index. Enter search keywords: "
+            self.processCharacters(
+                {"type": tokenTypes["Characters"], "data": prompt})
+            attributes = token["data"].copy()
+            if "action" in attributes:
+                del attributes["action"]
+            if "prompt" in attributes:
+                del attributes["prompt"]
+            attributes["name"] = "isindex"
+            self.processStartTag(impliedTagToken("input", "StartTag",
+                                                 attributes=attributes,
+                                                 selfClosing=token["selfClosing"]))
+            self.processEndTag(impliedTagToken("label"))
+            self.processStartTag(impliedTagToken("hr", "StartTag"))
+            self.processEndTag(impliedTagToken("form"))
+
+        def startTagTextarea(self, token):
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.rcdataState
+            self.processSpaceCharacters = self.processSpaceCharactersDropNewline
+            self.parser.framesetOK = False
+
+        def startTagIFrame(self, token):
+            self.parser.framesetOK = False
+            self.startTagRawtext(token)
+
+        def startTagNoscript(self, token):
+            if self.parser.scripting:
+                self.startTagRawtext(token)
+            else:
+                self.startTagOther(token)
+
+        def startTagRawtext(self, token):
+            """iframe, noembed noframes, noscript(if scripting enabled)"""
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagOpt(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.parser.phase.processEndTag(impliedTagToken("option"))
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.tree.insertElement(token)
+
+        def startTagSelect(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            if self.parser.phase in (self.parser.phases["inTable"],
+                                     self.parser.phases["inCaption"],
+                                     self.parser.phases["inColumnGroup"],
+                                     self.parser.phases["inTableBody"],
+                                     self.parser.phases["inRow"],
+                                     self.parser.phases["inCell"]):
+                self.parser.phase = self.parser.phases["inSelectInTable"]
+            else:
+                self.parser.phase = self.parser.phases["inSelect"]
+
+        def startTagRpRt(self, token):
+            if self.tree.elementInScope("ruby"):
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "ruby":
+                    self.parser.parseError()
+            self.tree.insertElement(token)
+
+        def startTagMath(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.adjustMathMLAttributes(token)
+            self.parser.adjustForeignAttributes(token)
+            token["namespace"] = namespaces["mathml"]
+            self.tree.insertElement(token)
+            # Need to get the parse error right for the case where the token
+            # has a namespace not equal to the xmlns attribute
+            if token["selfClosing"]:
+                self.tree.openElements.pop()
+                token["selfClosingAcknowledged"] = True
+
+        def startTagSvg(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.adjustSVGAttributes(token)
+            self.parser.adjustForeignAttributes(token)
+            token["namespace"] = namespaces["svg"]
+            self.tree.insertElement(token)
+            # Need to get the parse error right for the case where the token
+            # has a namespace not equal to the xmlns attribute
+            if token["selfClosing"]:
+                self.tree.openElements.pop()
+                token["selfClosingAcknowledged"] = True
+
+        def startTagMisplaced(self, token):
+            """ Elements that should be children of other elements that have a
+            different insertion mode; here they are ignored
+            "caption", "col", "colgroup", "frame", "frameset", "head",
+            "option", "optgroup", "tbody", "td", "tfoot", "th", "thead",
+            "tr", "noscript"
+            """
+            self.parser.parseError("unexpected-start-tag-ignored", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+
+        def endTagP(self, token):
+            if not self.tree.elementInScope("p", variant="button"):
+                self.startTagCloseP(impliedTagToken("p", "StartTag"))
+                self.parser.parseError("unexpected-end-tag", {"name": "p"})
+                self.endTagP(impliedTagToken("p", "EndTag"))
+            else:
+                self.tree.generateImpliedEndTags("p")
+                if self.tree.openElements[-1].name != "p":
+                    self.parser.parseError("unexpected-end-tag", {"name": "p"})
+                node = self.tree.openElements.pop()
+                while node.name != "p":
+                    node = self.tree.openElements.pop()
+
+        def endTagBody(self, token):
+            if not self.tree.elementInScope("body"):
+                self.parser.parseError()
+                return
+            elif self.tree.openElements[-1].name != "body":
+                for node in self.tree.openElements[2:]:
+                    if node.name not in frozenset(("dd", "dt", "li", "optgroup",
+                                                   "option", "p", "rp", "rt",
+                                                   "tbody", "td", "tfoot",
+                                                   "th", "thead", "tr", "body",
+                                                   "html")):
+                        # Not sure this is the correct name for the parse error
+                        self.parser.parseError(
+                            "expected-one-end-tag-but-got-another",
+                            {"gotName": "body", "expectedName": node.name})
+                        break
+            self.parser.phase = self.parser.phases["afterBody"]
+
+        def endTagHtml(self, token):
+            # We repeat the test for the body end tag token being ignored here
+            if self.tree.elementInScope("body"):
+                self.endTagBody(impliedTagToken("body"))
+                return token
+
+        def endTagBlock(self, token):
+            # Put us back in the right whitespace handling mode
+            if token["name"] == "pre":
+                self.processSpaceCharacters = self.processSpaceCharactersNonPre
+            inScope = self.tree.elementInScope(token["name"])
+            if inScope:
+                self.tree.generateImpliedEndTags()
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+            if inScope:
+                node = self.tree.openElements.pop()
+                while node.name != token["name"]:
+                    node = self.tree.openElements.pop()
+
+        def endTagForm(self, token):
+            node = self.tree.formPointer
+            self.tree.formPointer = None
+            if node is None or not self.tree.elementInScope(node):
+                self.parser.parseError("unexpected-end-tag",
+                                       {"name": "form"})
+            else:
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1] != node:
+                    self.parser.parseError("end-tag-too-early-ignored",
+                                           {"name": "form"})
+                self.tree.openElements.remove(node)
+
+        def endTagListItem(self, token):
+            if token["name"] == "li":
+                variant = "list"
+            else:
+                variant = None
+            if not self.tree.elementInScope(token["name"], variant=variant):
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+            else:
+                self.tree.generateImpliedEndTags(exclude=token["name"])
+                if self.tree.openElements[-1].name != token["name"]:
+                    self.parser.parseError(
+                        "end-tag-too-early",
+                        {"name": token["name"]})
+                node = self.tree.openElements.pop()
+                while node.name != token["name"]:
+                    node = self.tree.openElements.pop()
+
+        def endTagHeading(self, token):
+            for item in headingElements:
+                if self.tree.elementInScope(item):
+                    self.tree.generateImpliedEndTags()
+                    break
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+
+            for item in headingElements:
+                if self.tree.elementInScope(item):
+                    item = self.tree.openElements.pop()
+                    while item.name not in headingElements:
+                        item = self.tree.openElements.pop()
+                    break
+
+        def endTagFormatting(self, token):
+            """The much-feared adoption agency algorithm"""
+            # http://svn.whatwg.org/webapps/complete.html#adoptionAgency revision 7867
+            # XXX Better parseError messages appreciated.
+
+            # Step 1
+            outerLoopCounter = 0
+
+            # Step 2
+            while outerLoopCounter < 8:
+
+                # Step 3
+                outerLoopCounter += 1
+
+                # Step 4:
+
+                # Let the formatting element be the last element in
+                # the list of active formatting elements that:
+                # - is between the end of the list and the last scope
+                # marker in the list, if any, or the start of the list
+                # otherwise, and
+                # - has the same tag name as the token.
+                formattingElement = self.tree.elementInActiveFormattingElements(
+                    token["name"])
+                if (not formattingElement or
+                    (formattingElement in self.tree.openElements and
+                     not self.tree.elementInScope(formattingElement.name))):
+                    # If there is no such node, then abort these steps
+                    # and instead act as described in the "any other
+                    # end tag" entry below.
+                    self.endTagOther(token)
+                    return
+
+                # Otherwise, if there is such a node, but that node is
+                # not in the stack of open elements, then this is a
+                # parse error; remove the element from the list, and
+                # abort these steps.
+                elif formattingElement not in self.tree.openElements:
+                    self.parser.parseError("adoption-agency-1.2", {"name": token["name"]})
+                    self.tree.activeFormattingElements.remove(formattingElement)
+                    return
+
+                # Otherwise, if there is such a node, and that node is
+                # also in the stack of open elements, but the element
+                # is not in scope, then this is a parse error; ignore
+                # the token, and abort these steps.
+                elif not self.tree.elementInScope(formattingElement.name):
+                    self.parser.parseError("adoption-agency-4.4", {"name": token["name"]})
+                    return
+
+                # Otherwise, there is a formatting element and that
+                # element is in the stack and is in scope. If the
+                # element is not the current node, this is a parse
+                # error. In any case, proceed with the algorithm as
+                # written in the following steps.
+                else:
+                    if formattingElement != self.tree.openElements[-1]:
+                        self.parser.parseError("adoption-agency-1.3", {"name": token["name"]})
+
+                # Step 5:
+
+                # Let the furthest block be the topmost node in the
+                # stack of open elements that is lower in the stack
+                # than the formatting element, and is an element in
+                # the special category. There might not be one.
+                afeIndex = self.tree.openElements.index(formattingElement)
+                furthestBlock = None
+                for element in self.tree.openElements[afeIndex:]:
+                    if element.nameTuple in specialElements:
+                        furthestBlock = element
+                        break
+
+                # Step 6:
+
+                # If there is no furthest block, then the UA must
+                # first pop all the nodes from the bottom of the stack
+                # of open elements, from the current node up to and
+                # including the formatting element, then remove the
+                # formatting element from the list of active
+                # formatting elements, and finally abort these steps.
+                if furthestBlock is None:
+                    element = self.tree.openElements.pop()
+                    while element != formattingElement:
+                        element = self.tree.openElements.pop()
+                    self.tree.activeFormattingElements.remove(element)
+                    return
+
+                # Step 7
+                commonAncestor = self.tree.openElements[afeIndex - 1]
+
+                # Step 8:
+                # The bookmark is supposed to help us identify where to reinsert
+                # nodes in step 15. We have to ensure that we reinsert nodes after
+                # the node before the active formatting element. Note the bookmark
+                # can move in step 9.7
+                bookmark = self.tree.activeFormattingElements.index(formattingElement)
+
+                # Step 9
+                lastNode = node = furthestBlock
+                innerLoopCounter = 0
+
+                index = self.tree.openElements.index(node)
+                while innerLoopCounter < 3:
+                    innerLoopCounter += 1
+                    # Node is element before node in open elements
+                    index -= 1
+                    node = self.tree.openElements[index]
+                    if node not in self.tree.activeFormattingElements:
+                        self.tree.openElements.remove(node)
+                        continue
+                    # Step 9.6
+                    if node == formattingElement:
+                        break
+                    # Step 9.7
+                    if lastNode == furthestBlock:
+                        bookmark = self.tree.activeFormattingElements.index(node) + 1
+                    # Step 9.8
+                    clone = node.cloneNode()
+                    # Replace node with clone
+                    self.tree.activeFormattingElements[
+                        self.tree.activeFormattingElements.index(node)] = clone
+                    self.tree.openElements[
+                        self.tree.openElements.index(node)] = clone
+                    node = clone
+                    # Step 9.9
+                    # Remove lastNode from its parents, if any
+                    if lastNode.parent:
+                        lastNode.parent.removeChild(lastNode)
+                    node.appendChild(lastNode)
+                    # Step 9.10
+                    lastNode = node
+
+                # Step 10
+                # Foster parent lastNode if commonAncestor is a
+                # table, tbody, tfoot, thead, or tr we need to foster
+                # parent the lastNode
+                if lastNode.parent:
+                    lastNode.parent.removeChild(lastNode)
+
+                if commonAncestor.name in frozenset(("table", "tbody", "tfoot", "thead", "tr")):
+                    parent, insertBefore = self.tree.getTableMisnestedNodePosition()
+                    parent.insertBefore(lastNode, insertBefore)
+                else:
+                    commonAncestor.appendChild(lastNode)
+
+                # Step 11
+                clone = formattingElement.cloneNode()
+
+                # Step 12
+                furthestBlock.reparentChildren(clone)
+
+                # Step 13
+                furthestBlock.appendChild(clone)
+
+                # Step 14
+                self.tree.activeFormattingElements.remove(formattingElement)
+                self.tree.activeFormattingElements.insert(bookmark, clone)
+
+                # Step 15
+                self.tree.openElements.remove(formattingElement)
+                self.tree.openElements.insert(
+                    self.tree.openElements.index(furthestBlock) + 1, clone)
+
+        def endTagAppletMarqueeObject(self, token):
+            if self.tree.elementInScope(token["name"]):
+                self.tree.generateImpliedEndTags()
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+
+            if self.tree.elementInScope(token["name"]):
+                element = self.tree.openElements.pop()
+                while element.name != token["name"]:
+                    element = self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+
+        def endTagBr(self, token):
+            self.parser.parseError("unexpected-end-tag-treated-as",
+                                   {"originalName": "br", "newName": "br element"})
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(impliedTagToken("br", "StartTag"))
+            self.tree.openElements.pop()
+
+        def endTagOther(self, token):
+            for node in self.tree.openElements[::-1]:
+                if node.name == token["name"]:
+                    self.tree.generateImpliedEndTags(exclude=token["name"])
+                    if self.tree.openElements[-1].name != token["name"]:
+                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+                    while self.tree.openElements.pop() != node:
+                        pass
+                    break
+                else:
+                    if node.nameTuple in specialElements:
+                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+                        break
+
+    class TextPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([])
+            self.startTagHandler.default = self.startTagOther
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("script", self.endTagScript)])
+            self.endTagHandler.default = self.endTagOther
+
+        def processCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processEOF(self):
+            self.parser.parseError("expected-named-closing-tag-but-got-eof",
+                                   {"name": self.tree.openElements[-1].name})
+            self.tree.openElements.pop()
+            self.parser.phase = self.parser.originalPhase
+            return True
+
+        def startTagOther(self, token):
+            assert False, "Tried to process start tag %s in RCDATA/RAWTEXT mode" % token['name']
+
+        def endTagScript(self, token):
+            node = self.tree.openElements.pop()
+            assert node.name == "script"
+            self.parser.phase = self.parser.originalPhase
+            # The rest of this method is all stuff that only happens if
+            # document.write works
+
+        def endTagOther(self, token):
+            self.tree.openElements.pop()
+            self.parser.phase = self.parser.originalPhase
+
+    class InTablePhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-table
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("caption", self.startTagCaption),
+                ("colgroup", self.startTagColgroup),
+                ("col", self.startTagCol),
+                (("tbody", "tfoot", "thead"), self.startTagRowGroup),
+                (("td", "th", "tr"), self.startTagImplyTbody),
+                ("table", self.startTagTable),
+                (("style", "script"), self.startTagStyleScript),
+                ("input", self.startTagInput),
+                ("form", self.startTagForm)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("table", self.endTagTable),
+                (("body", "caption", "col", "colgroup", "html", "tbody", "td",
+                  "tfoot", "th", "thead", "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods
+        def clearStackToTableContext(self):
+            # "clear the stack back to a table context"
+            while self.tree.openElements[-1].name not in ("table", "html"):
+                # self.parser.parseError("unexpected-implied-end-tag-in-table",
+                #  {"name":  self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+            # When the current node is <html> it's an innerHTML case
+
+        # processing methods
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-table")
+            else:
+                assert self.parser.innerHTML
+            # Stop parsing
+
+        def processSpaceCharacters(self, token):
+            originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["inTableText"]
+            self.parser.phase.originalPhase = originalPhase
+            self.parser.phase.processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["inTableText"]
+            self.parser.phase.originalPhase = originalPhase
+            self.parser.phase.processCharacters(token)
+
+        def insertText(self, token):
+            # If we get here there must be at least one non-whitespace character
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processCharacters(token)
+            self.tree.insertFromTable = False
+
+        def startTagCaption(self, token):
+            self.clearStackToTableContext()
+            self.tree.activeFormattingElements.append(Marker)
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inCaption"]
+
+        def startTagColgroup(self, token):
+            self.clearStackToTableContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inColumnGroup"]
+
+        def startTagCol(self, token):
+            self.startTagColgroup(impliedTagToken("colgroup", "StartTag"))
+            return token
+
+        def startTagRowGroup(self, token):
+            self.clearStackToTableContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inTableBody"]
+
+        def startTagImplyTbody(self, token):
+            self.startTagRowGroup(impliedTagToken("tbody", "StartTag"))
+            return token
+
+        def startTagTable(self, token):
+            self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                   {"startName": "table", "endName": "table"})
+            self.parser.phase.processEndTag(impliedTagToken("table"))
+            if not self.parser.innerHTML:
+                return token
+
+        def startTagStyleScript(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagInput(self, token):
+            if ("type" in token["data"] and
+                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
+                self.parser.parseError("unexpected-hidden-input-in-table")
+                self.tree.insertElement(token)
+                # XXX associate with form
+                self.tree.openElements.pop()
+            else:
+                self.startTagOther(token)
+
+        def startTagForm(self, token):
+            self.parser.parseError("unexpected-form-in-table")
+            if self.tree.formPointer is None:
+                self.tree.insertElement(token)
+                self.tree.formPointer = self.tree.openElements[-1]
+                self.tree.openElements.pop()
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-implies-table-voodoo", {"name": token["name"]})
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processStartTag(token)
+            self.tree.insertFromTable = False
+
+        def endTagTable(self, token):
+            if self.tree.elementInScope("table", variant="table"):
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "table":
+                    self.parser.parseError("end-tag-too-early-named",
+                                           {"gotName": "table",
+                                            "expectedName": self.tree.openElements[-1].name})
+                while self.tree.openElements[-1].name != "table":
+                    self.tree.openElements.pop()
+                self.tree.openElements.pop()
+                self.parser.resetInsertionMode()
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-implies-table-voodoo", {"name": token["name"]})
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processEndTag(token)
+            self.tree.insertFromTable = False
+
+    class InTableTextPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.originalPhase = None
+            self.characterTokens = []
+
+        def flushCharacters(self):
+            data = "".join([item["data"] for item in self.characterTokens])
+            if any([item not in spaceCharacters for item in data]):
+                token = {"type": tokenTypes["Characters"], "data": data}
+                self.parser.phases["inTable"].insertText(token)
+            elif data:
+                self.tree.insertText(data)
+            self.characterTokens = []
+
+        def processComment(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+        def processEOF(self):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return True
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                return
+            self.characterTokens.append(token)
+
+        def processSpaceCharacters(self, token):
+            # pretty sure we should never reach here
+            self.characterTokens.append(token)
+    #        assert False
+
+        def processStartTag(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+        def processEndTag(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+    class InCaptionPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-caption
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.startTagTableElement)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("caption", self.endTagCaption),
+                ("table", self.endTagTable),
+                (("body", "col", "colgroup", "html", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def ignoreEndTagCaption(self):
+            return not self.tree.elementInScope("caption", variant="table")
+
+        def processEOF(self):
+            self.parser.phases["inBody"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inBody"].processCharacters(token)
+
+        def startTagTableElement(self, token):
+            self.parser.parseError()
+            # XXX Have to duplicate logic here to find out if the tag is ignored
+            ignoreEndTag = self.ignoreEndTagCaption()
+            self.parser.phase.processEndTag(impliedTagToken("caption"))
+            if not ignoreEndTag:
+                return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def endTagCaption(self, token):
+            if not self.ignoreEndTagCaption():
+                # AT this code is quite similar to endTagTable in "InTable"
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "caption":
+                    self.parser.parseError("expected-one-end-tag-but-got-another",
+                                           {"gotName": "caption",
+                                            "expectedName": self.tree.openElements[-1].name})
+                while self.tree.openElements[-1].name != "caption":
+                    self.tree.openElements.pop()
+                self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+                self.parser.phase = self.parser.phases["inTable"]
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagTable(self, token):
+            self.parser.parseError()
+            ignoreEndTag = self.ignoreEndTagCaption()
+            self.parser.phase.processEndTag(impliedTagToken("caption"))
+            if not ignoreEndTag:
+                return token
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inBody"].processEndTag(token)
+
+    class InColumnGroupPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-column
+
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("col", self.startTagCol)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("colgroup", self.endTagColgroup),
+                ("col", self.endTagCol)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def ignoreEndTagColgroup(self):
+            return self.tree.openElements[-1].name == "html"
+
+        def processEOF(self):
+            if self.tree.openElements[-1].name == "html":
+                assert self.parser.innerHTML
+                return
+            else:
+                ignoreEndTag = self.ignoreEndTagColgroup()
+                self.endTagColgroup(impliedTagToken("colgroup"))
+                if not ignoreEndTag:
+                    return True
+
+        def processCharacters(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+        def startTagCol(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagOther(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+        def endTagColgroup(self, token):
+            if self.ignoreEndTagColgroup():
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+            else:
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTable"]
+
+        def endTagCol(self, token):
+            self.parser.parseError("no-end-tag", {"name": "col"})
+
+        def endTagOther(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+    class InTableBodyPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-table0
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("tr", self.startTagTr),
+                (("td", "th"), self.startTagTableCell),
+                (("caption", "col", "colgroup", "tbody", "tfoot", "thead"),
+                 self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),
+                ("table", self.endTagTable),
+                (("body", "caption", "col", "colgroup", "html", "td", "th",
+                  "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods
+        def clearStackToTableBodyContext(self):
+            while self.tree.openElements[-1].name not in ("tbody", "tfoot",
+                                                          "thead", "html"):
+                # self.parser.parseError("unexpected-implied-end-tag-in-table",
+                #  {"name": self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+            if self.tree.openElements[-1].name == "html":
+                assert self.parser.innerHTML
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inTable"].processEOF()
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inTable"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            return self.parser.phases["inTable"].processCharacters(token)
+
+        def startTagTr(self, token):
+            self.clearStackToTableBodyContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inRow"]
+
+        def startTagTableCell(self, token):
+            self.parser.parseError("unexpected-cell-in-table-body",
+                                   {"name": token["name"]})
+            self.startTagTr(impliedTagToken("tr", "StartTag"))
+            return token
+
+        def startTagTableOther(self, token):
+            # XXX AT Any ideas on how to share this with endTagTable?
+            if (self.tree.elementInScope("tbody", variant="table") or
+                self.tree.elementInScope("thead", variant="table") or
+                    self.tree.elementInScope("tfoot", variant="table")):
+                self.clearStackToTableBodyContext()
+                self.endTagTableRowGroup(
+                    impliedTagToken(self.tree.openElements[-1].name))
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def startTagOther(self, token):
+            return self.parser.phases["inTable"].processStartTag(token)
+
+        def endTagTableRowGroup(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.clearStackToTableBodyContext()
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTable"]
+            else:
+                self.parser.parseError("unexpected-end-tag-in-table-body",
+                                       {"name": token["name"]})
+
+        def endTagTable(self, token):
+            if (self.tree.elementInScope("tbody", variant="table") or
+                self.tree.elementInScope("thead", variant="table") or
+                    self.tree.elementInScope("tfoot", variant="table")):
+                self.clearStackToTableBodyContext()
+                self.endTagTableRowGroup(
+                    impliedTagToken(self.tree.openElements[-1].name))
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag-in-table-body",
+                                   {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inTable"].processEndTag(token)
+
+    class InRowPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-row
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("td", "th"), self.startTagTableCell),
+                (("caption", "col", "colgroup", "tbody", "tfoot", "thead",
+                  "tr"), self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("tr", self.endTagTr),
+                ("table", self.endTagTable),
+                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),
+                (("body", "caption", "col", "colgroup", "html", "td", "th"),
+                 self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods (XXX unify this with other table helper methods)
+        def clearStackToTableRowContext(self):
+            while self.tree.openElements[-1].name not in ("tr", "html"):
+                self.parser.parseError("unexpected-implied-end-tag-in-table-row",
+                                       {"name": self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+
+        def ignoreEndTagTr(self):
+            return not self.tree.elementInScope("tr", variant="table")
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inTable"].processEOF()
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inTable"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            return self.parser.phases["inTable"].processCharacters(token)
+
+        def startTagTableCell(self, token):
+            self.clearStackToTableRowContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inCell"]
+            self.tree.activeFormattingElements.append(Marker)
+
+        def startTagTableOther(self, token):
+            ignoreEndTag = self.ignoreEndTagTr()
+            self.endTagTr(impliedTagToken("tr"))
+            # XXX how are we sure it's always ignored in the innerHTML case?
+            if not ignoreEndTag:
+                return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inTable"].processStartTag(token)
+
+        def endTagTr(self, token):
+            if not self.ignoreEndTagTr():
+                self.clearStackToTableRowContext()
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTableBody"]
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagTable(self, token):
+            ignoreEndTag = self.ignoreEndTagTr()
+            self.endTagTr(impliedTagToken("tr"))
+            # Reprocess the current tag if the tr end tag was not ignored
+            # XXX how are we sure it's always ignored in the innerHTML case?
+            if not ignoreEndTag:
+                return token
+
+        def endTagTableRowGroup(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.endTagTr(impliedTagToken("tr"))
+                return token
+            else:
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag-in-table-row",
+                                   {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inTable"].processEndTag(token)
+
+    class InCellPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-cell
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("td", "th"), self.endTagTableCell),
+                (("body", "caption", "col", "colgroup", "html"), self.endTagIgnore),
+                (("table", "tbody", "tfoot", "thead", "tr"), self.endTagImply)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper
+        def closeCell(self):
+            if self.tree.elementInScope("td", variant="table"):
+                self.endTagTableCell(impliedTagToken("td"))
+            elif self.tree.elementInScope("th", variant="table"):
+                self.endTagTableCell(impliedTagToken("th"))
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inBody"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inBody"].processCharacters(token)
+
+        def startTagTableOther(self, token):
+            if (self.tree.elementInScope("td", variant="table") or
+                    self.tree.elementInScope("th", variant="table")):
+                self.closeCell()
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def startTagOther(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def endTagTableCell(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.tree.generateImpliedEndTags(token["name"])
+                if self.tree.openElements[-1].name != token["name"]:
+                    self.parser.parseError("unexpected-cell-end-tag",
+                                           {"name": token["name"]})
+                    while True:
+                        node = self.tree.openElements.pop()
+                        if node.name == token["name"]:
+                            break
+                else:
+                    self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+                self.parser.phase = self.parser.phases["inRow"]
+            else:
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagImply(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.closeCell()
+                return token
+            else:
+                # sometimes innerHTML case
+                self.parser.parseError()
+
+        def endTagOther(self, token):
+            return self.parser.phases["inBody"].processEndTag(token)
+
+    class InSelectPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("option", self.startTagOption),
+                ("optgroup", self.startTagOptgroup),
+                ("select", self.startTagSelect),
+                (("input", "keygen", "textarea"), self.startTagInput),
+                ("script", self.startTagScript)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("option", self.endTagOption),
+                ("optgroup", self.endTagOptgroup),
+                ("select", self.endTagSelect)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-select
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-select")
+            else:
+                assert self.parser.innerHTML
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                return
+            self.tree.insertText(token["data"])
+
+        def startTagOption(self, token):
+            # We need to imply </option> if <option> is the current node.
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagOptgroup(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            if self.tree.openElements[-1].name == "optgroup":
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagSelect(self, token):
+            self.parser.parseError("unexpected-select-in-select")
+            self.endTagSelect(impliedTagToken("select"))
+
+        def startTagInput(self, token):
+            self.parser.parseError("unexpected-input-in-select")
+            if self.tree.elementInScope("select", variant="select"):
+                self.endTagSelect(impliedTagToken("select"))
+                return token
+            else:
+                assert self.parser.innerHTML
+
+        def startTagScript(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-in-select",
+                                   {"name": token["name"]})
+
+        def endTagOption(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            else:
+                self.parser.parseError("unexpected-end-tag-in-select",
+                                       {"name": "option"})
+
+        def endTagOptgroup(self, token):
+            # </optgroup> implicitly closes <option>
+            if (self.tree.openElements[-1].name == "option" and
+                    self.tree.openElements[-2].name == "optgroup"):
+                self.tree.openElements.pop()
+            # It also closes </optgroup>
+            if self.tree.openElements[-1].name == "optgroup":
+                self.tree.openElements.pop()
+            # But nothing else
+            else:
+                self.parser.parseError("unexpected-end-tag-in-select",
+                                       {"name": "optgroup"})
+
+        def endTagSelect(self, token):
+            if self.tree.elementInScope("select", variant="select"):
+                node = self.tree.openElements.pop()
+                while node.name != "select":
+                    node = self.tree.openElements.pop()
+                self.parser.resetInsertionMode()
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-in-select",
+                                   {"name": token["name"]})
+
+    class InSelectInTablePhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
+                 self.startTagTable)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
+                 self.endTagTable)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            self.parser.phases["inSelect"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inSelect"].processCharacters(token)
+
+        def startTagTable(self, token):
+            self.parser.parseError("unexpected-table-element-start-tag-in-select-in-table", {"name": token["name"]})
+            self.endTagOther(impliedTagToken("select"))
+            return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inSelect"].processStartTag(token)
+
+        def endTagTable(self, token):
+            self.parser.parseError("unexpected-table-element-end-tag-in-select-in-table", {"name": token["name"]})
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.endTagOther(impliedTagToken("select"))
+                return token
+
+        def endTagOther(self, token):
+            return self.parser.phases["inSelect"].processEndTag(token)
+
+    class InForeignContentPhase(Phase):
+        breakoutElements = frozenset(["b", "big", "blockquote", "body", "br",
+                                      "center", "code", "dd", "div", "dl", "dt",
+                                      "em", "embed", "h1", "h2", "h3",
+                                      "h4", "h5", "h6", "head", "hr", "i", "img",
+                                      "li", "listing", "menu", "meta", "nobr",
+                                      "ol", "p", "pre", "ruby", "s", "small",
+                                      "span", "strong", "strike", "sub", "sup",
+                                      "table", "tt", "u", "ul", "var"])
+
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+        def adjustSVGTagNames(self, token):
+            replacements = {"altglyph": "altGlyph",
+                            "altglyphdef": "altGlyphDef",
+                            "altglyphitem": "altGlyphItem",
+                            "animatecolor": "animateColor",
+                            "animatemotion": "animateMotion",
+                            "animatetransform": "animateTransform",
+                            "clippath": "clipPath",
+                            "feblend": "feBlend",
+                            "fecolormatrix": "feColorMatrix",
+                            "fecomponenttransfer": "feComponentTransfer",
+                            "fecomposite": "feComposite",
+                            "feconvolvematrix": "feConvolveMatrix",
+                            "fediffuselighting": "feDiffuseLighting",
+                            "fedisplacementmap": "feDisplacementMap",
+                            "fedistantlight": "feDistantLight",
+                            "feflood": "feFlood",
+                            "fefunca": "feFuncA",
+                            "fefuncb": "feFuncB",
+                            "fefuncg": "feFuncG",
+                            "fefuncr": "feFuncR",
+                            "fegaussianblur": "feGaussianBlur",
+                            "feimage": "feImage",
+                            "femerge": "feMerge",
+                            "femergenode": "feMergeNode",
+                            "femorphology": "feMorphology",
+                            "feoffset": "feOffset",
+                            "fepointlight": "fePointLight",
+                            "fespecularlighting": "feSpecularLighting",
+                            "fespotlight": "feSpotLight",
+                            "fetile": "feTile",
+                            "feturbulence": "feTurbulence",
+                            "foreignobject": "foreignObject",
+                            "glyphref": "glyphRef",
+                            "lineargradient": "linearGradient",
+                            "radialgradient": "radialGradient",
+                            "textpath": "textPath"}
+
+            if token["name"] in replacements:
+                token["name"] = replacements[token["name"]]
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                token["data"] = "\uFFFD"
+            elif (self.parser.framesetOK and
+                  any(char not in spaceCharacters for char in token["data"])):
+                self.parser.framesetOK = False
+            Phase.processCharacters(self, token)
+
+        def processStartTag(self, token):
+            currentNode = self.tree.openElements[-1]
+            if (token["name"] in self.breakoutElements or
+                (token["name"] == "font" and
+                 set(token["data"].keys()) & set(["color", "face", "size"]))):
+                self.parser.parseError("unexpected-html-element-in-foreign-content",
+                                       {"name": token["name"]})
+                while (self.tree.openElements[-1].namespace !=
+                       self.tree.defaultNamespace and
+                       not self.parser.isHTMLIntegrationPoint(self.tree.openElements[-1]) and
+                       not self.parser.isMathMLTextIntegrationPoint(self.tree.openElements[-1])):
+                    self.tree.openElements.pop()
+                return token
+
+            else:
+                if currentNode.namespace == namespaces["mathml"]:
+                    self.parser.adjustMathMLAttributes(token)
+                elif currentNode.namespace == namespaces["svg"]:
+                    self.adjustSVGTagNames(token)
+                    self.parser.adjustSVGAttributes(token)
+                self.parser.adjustForeignAttributes(token)
+                token["namespace"] = currentNode.namespace
+                self.tree.insertElement(token)
+                if token["selfClosing"]:
+                    self.tree.openElements.pop()
+                    token["selfClosingAcknowledged"] = True
+
+        def processEndTag(self, token):
+            nodeIndex = len(self.tree.openElements) - 1
+            node = self.tree.openElements[-1]
+            if node.name.translate(asciiUpper2Lower) != token["name"]:
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+            while True:
+                if node.name.translate(asciiUpper2Lower) == token["name"]:
+                    # XXX this isn't in the spec but it seems necessary
+                    if self.parser.phase == self.parser.phases["inTableText"]:
+                        self.parser.phase.flushCharacters()
+                        self.parser.phase = self.parser.phase.originalPhase
+                    while self.tree.openElements.pop() != node:
+                        assert self.tree.openElements
+                    new_token = None
+                    break
+                nodeIndex -= 1
+
+                node = self.tree.openElements[nodeIndex]
+                if node.namespace != self.tree.defaultNamespace:
+                    continue
+                else:
+                    new_token = self.parser.phase.processEndTag(token)
+                    break
+            return new_token
+
+    class AfterBodyPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([("html", self.endTagHtml)])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            # Stop parsing
+            pass
+
+        def processComment(self, token):
+            # This is needed because data is to be appended to the <html> element
+            # here and not to whatever is currently open.
+            self.tree.insertComment(token, self.tree.openElements[0])
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-after-body")
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-after-body",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def endTagHtml(self, name):
+            if self.parser.innerHTML:
+                self.parser.parseError("unexpected-end-tag-after-body-innerhtml")
+            else:
+                self.parser.phase = self.parser.phases["afterAfterBody"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-after-body",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+    class InFramesetPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-frameset
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("frameset", self.startTagFrameset),
+                ("frame", self.startTagFrame),
+                ("noframes", self.startTagNoframes)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("frameset", self.endTagFrameset)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-frameset")
+            else:
+                assert self.parser.innerHTML
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-in-frameset")
+
+        def startTagFrameset(self, token):
+            self.tree.insertElement(token)
+
+        def startTagFrame(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+
+        def startTagNoframes(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-in-frameset",
+                                   {"name": token["name"]})
+
+        def endTagFrameset(self, token):
+            if self.tree.openElements[-1].name == "html":
+                # innerHTML case
+                self.parser.parseError("unexpected-frameset-in-frameset-innerhtml")
+            else:
+                self.tree.openElements.pop()
+            if (not self.parser.innerHTML and
+                    self.tree.openElements[-1].name != "frameset"):
+                # If we're not in innerHTML mode and the current node is not a
+                # "frameset" element (anymore) then switch.
+                self.parser.phase = self.parser.phases["afterFrameset"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-in-frameset",
+                                   {"name": token["name"]})
+
+    class AfterFramesetPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#after3
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("noframes", self.startTagNoframes)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("html", self.endTagHtml)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            # Stop parsing
+            pass
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-after-frameset")
+
+        def startTagNoframes(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-after-frameset",
+                                   {"name": token["name"]})
+
+        def endTagHtml(self, token):
+            self.parser.phase = self.parser.phases["afterAfterFrameset"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-after-frameset",
+                                   {"name": token["name"]})
+
+    class AfterAfterBodyPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+        def processEOF(self):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inBody"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-eof-but-got-char")
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("expected-eof-but-got-start-tag",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-eof-but-got-end-tag",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+    class AfterAfterFramesetPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("noframes", self.startTagNoFrames)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+        def processEOF(self):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inBody"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-eof-but-got-char")
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagNoFrames(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("expected-eof-but-got-start-tag",
+                                   {"name": token["name"]})
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-eof-but-got-end-tag",
+                                   {"name": token["name"]})
+    # pylint:enable=unused-argument
+
+    return {
+        "initial": InitialPhase,
+        "beforeHtml": BeforeHtmlPhase,
+        "beforeHead": BeforeHeadPhase,
+        "inHead": InHeadPhase,
+        "inHeadNoscript": InHeadNoscriptPhase,
+        "afterHead": AfterHeadPhase,
+        "inBody": InBodyPhase,
+        "text": TextPhase,
+        "inTable": InTablePhase,
+        "inTableText": InTableTextPhase,
+        "inCaption": InCaptionPhase,
+        "inColumnGroup": InColumnGroupPhase,
+        "inTableBody": InTableBodyPhase,
+        "inRow": InRowPhase,
+        "inCell": InCellPhase,
+        "inSelect": InSelectPhase,
+        "inSelectInTable": InSelectInTablePhase,
+        "inForeignContent": InForeignContentPhase,
+        "afterBody": AfterBodyPhase,
+        "inFrameset": InFramesetPhase,
+        "afterFrameset": AfterFramesetPhase,
+        "afterAfterBody": AfterAfterBodyPhase,
+        "afterAfterFrameset": AfterAfterFramesetPhase,
+        # XXX after after frameset
+    }
+
+
+def adjust_attributes(token, replacements):
+    if PY3 or _utils.PY27:
+        needs_adjustment = viewkeys(token['data']) & viewkeys(replacements)
+    else:
+        needs_adjustment = frozenset(token['data']) & frozenset(replacements)
+    if needs_adjustment:
+        token['data'] = OrderedDict((replacements.get(k, k), v)
+                                    for k, v in token['data'].items())
+
+
+def impliedTagToken(name, type="EndTag", attributes=None,
+                    selfClosing=False):
+    if attributes is None:
+        attributes = {}
+    return {"type": tokenTypes[type], "name": name, "data": attributes,
+            "selfClosing": selfClosing}
+
+
+class ParseError(Exception):
+    """Error in parsed document"""
+    pass
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py
new file mode 100644
index 0000000..2fb3481
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py
@@ -0,0 +1,334 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+import re
+
+from codecs import register_error, xmlcharrefreplace_errors
+
+from .constants import voidElements, booleanAttributes, spaceCharacters
+from .constants import rcdataElements, entities, xmlEntities
+from . import treewalkers, _utils
+from xml.sax.saxutils import escape
+
+_quoteAttributeSpecChars = "".join(spaceCharacters) + "\"'=<>`"
+_quoteAttributeSpec = re.compile("[" + _quoteAttributeSpecChars + "]")
+_quoteAttributeLegacy = re.compile("[" + _quoteAttributeSpecChars +
+                                   "\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n"
+                                   "\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15"
+                                   "\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
+                                   "\x20\x2f\x60\xa0\u1680\u180e\u180f\u2000"
+                                   "\u2001\u2002\u2003\u2004\u2005\u2006\u2007"
+                                   "\u2008\u2009\u200a\u2028\u2029\u202f\u205f"
+                                   "\u3000]")
+
+
+_encode_entity_map = {}
+_is_ucs4 = len("\U0010FFFF") == 1
+for k, v in list(entities.items()):
+    # skip multi-character entities
+    if ((_is_ucs4 and len(v) > 1) or
+            (not _is_ucs4 and len(v) > 2)):
+        continue
+    if v != "&":
+        if len(v) == 2:
+            v = _utils.surrogatePairToCodepoint(v)
+        else:
+            v = ord(v)
+        if v not in _encode_entity_map or k.islower():
+            # prefer < over < and similarly for &, >, etc.
+            _encode_entity_map[v] = k
+
+
+def htmlentityreplace_errors(exc):
+    if isinstance(exc, (UnicodeEncodeError, UnicodeTranslateError)):
+        res = []
+        codepoints = []
+        skip = False
+        for i, c in enumerate(exc.object[exc.start:exc.end]):
+            if skip:
+                skip = False
+                continue
+            index = i + exc.start
+            if _utils.isSurrogatePair(exc.object[index:min([exc.end, index + 2])]):
+                codepoint = _utils.surrogatePairToCodepoint(exc.object[index:index + 2])
+                skip = True
+            else:
+                codepoint = ord(c)
+            codepoints.append(codepoint)
+        for cp in codepoints:
+            e = _encode_entity_map.get(cp)
+            if e:
+                res.append("&")
+                res.append(e)
+                if not e.endswith(";"):
+                    res.append(";")
+            else:
+                res.append("&#x%s;" % (hex(cp)[2:]))
+        return ("".join(res), exc.end)
+    else:
+        return xmlcharrefreplace_errors(exc)
+
+register_error("htmlentityreplace", htmlentityreplace_errors)
+
+
+def serialize(input, tree="etree", encoding=None, **serializer_opts):
+    # XXX: Should we cache this?
+    walker = treewalkers.getTreeWalker(tree)
+    s = HTMLSerializer(**serializer_opts)
+    return s.render(walker(input), encoding)
+
+
+class HTMLSerializer(object):
+
+    # attribute quoting options
+    quote_attr_values = "legacy"  # be secure by default
+    quote_char = '"'
+    use_best_quote_char = True
+
+    # tag syntax options
+    omit_optional_tags = True
+    minimize_boolean_attributes = True
+    use_trailing_solidus = False
+    space_before_trailing_solidus = True
+
+    # escaping options
+    escape_lt_in_attrs = False
+    escape_rcdata = False
+    resolve_entities = True
+
+    # miscellaneous options
+    alphabetical_attributes = False
+    inject_meta_charset = True
+    strip_whitespace = False
+    sanitize = False
+
+    options = ("quote_attr_values", "quote_char", "use_best_quote_char",
+               "omit_optional_tags", "minimize_boolean_attributes",
+               "use_trailing_solidus", "space_before_trailing_solidus",
+               "escape_lt_in_attrs", "escape_rcdata", "resolve_entities",
+               "alphabetical_attributes", "inject_meta_charset",
+               "strip_whitespace", "sanitize")
+
+    def __init__(self, **kwargs):
+        """Initialize HTMLSerializer.
+
+        Keyword options (default given first unless specified) include:
+
+        inject_meta_charset=True|False
+          Whether it insert a meta element to define the character set of the
+          document.
+        quote_attr_values="legacy"|"spec"|"always"
+          Whether to quote attribute values that don't require quoting
+          per legacy browser behaviour, when required by the standard, or always.
+        quote_char=u'"'|u"'"
+          Use given quote character for attribute quoting. Default is to
+          use double quote unless attribute value contains a double quote,
+          in which case single quotes are used instead.
+        escape_lt_in_attrs=False|True
+          Whether to escape < in attribute values.
+        escape_rcdata=False|True
+          Whether to escape characters that need to be escaped within normal
+          elements within rcdata elements such as style.
+        resolve_entities=True|False
+          Whether to resolve named character entities that appear in the
+          source tree. The XML predefined entities < > & " '
+          are unaffected by this setting.
+        strip_whitespace=False|True
+          Whether to remove semantically meaningless whitespace. (This
+          compresses all whitespace to a single space except within pre.)
+        minimize_boolean_attributes=True|False
+          Shortens boolean attributes to give just the attribute value,
+          for example <input disabled="disabled"> becomes <input disabled>.
+        use_trailing_solidus=False|True
+          Includes a close-tag slash at the end of the start tag of void
+          elements (empty elements whose end tag is forbidden). E.g. <hr/>.
+        space_before_trailing_solidus=True|False
+          Places a space immediately before the closing slash in a tag
+          using a trailing solidus. E.g. <hr />. Requires use_trailing_solidus.
+        sanitize=False|True
+          Strip all unsafe or unknown constructs from output.
+          See `html5lib user documentation`_
+        omit_optional_tags=True|False
+          Omit start/end tags that are optional.
+        alphabetical_attributes=False|True
+          Reorder attributes to be in alphabetical order.
+
+        .. _html5lib user documentation: http://code.google.com/p/html5lib/wiki/UserDocumentation
+        """
+        unexpected_args = frozenset(kwargs) - frozenset(self.options)
+        if len(unexpected_args) > 0:
+            raise TypeError("__init__() got an unexpected keyword argument '%s'" % next(iter(unexpected_args)))
+        if 'quote_char' in kwargs:
+            self.use_best_quote_char = False
+        for attr in self.options:
+            setattr(self, attr, kwargs.get(attr, getattr(self, attr)))
+        self.errors = []
+        self.strict = False
+
+    def encode(self, string):
+        assert(isinstance(string, text_type))
+        if self.encoding:
+            return string.encode(self.encoding, "htmlentityreplace")
+        else:
+            return string
+
+    def encodeStrict(self, string):
+        assert(isinstance(string, text_type))
+        if self.encoding:
+            return string.encode(self.encoding, "strict")
+        else:
+            return string
+
+    def serialize(self, treewalker, encoding=None):
+        # pylint:disable=too-many-nested-blocks
+        self.encoding = encoding
+        in_cdata = False
+        self.errors = []
+
+        if encoding and self.inject_meta_charset:
+            from .filters.inject_meta_charset import Filter
+            treewalker = Filter(treewalker, encoding)
+        # Alphabetical attributes is here under the assumption that none of
+        # the later filters add or change order of attributes; it needs to be
+        # before the sanitizer so escaped elements come out correctly
+        if self.alphabetical_attributes:
+            from .filters.alphabeticalattributes import Filter
+            treewalker = Filter(treewalker)
+        # WhitespaceFilter should be used before OptionalTagFilter
+        # for maximum efficiently of this latter filter
+        if self.strip_whitespace:
+            from .filters.whitespace import Filter
+            treewalker = Filter(treewalker)
+        if self.sanitize:
+            from .filters.sanitizer import Filter
+            treewalker = Filter(treewalker)
+        if self.omit_optional_tags:
+            from .filters.optionaltags import Filter
+            treewalker = Filter(treewalker)
+
+        for token in treewalker:
+            type = token["type"]
+            if type == "Doctype":
+                doctype = "<!DOCTYPE %s" % token["name"]
+
+                if token["publicId"]:
+                    doctype += ' PUBLIC "%s"' % token["publicId"]
+                elif token["systemId"]:
+                    doctype += " SYSTEM"
+                if token["systemId"]:
+                    if token["systemId"].find('"') >= 0:
+                        if token["systemId"].find("'") >= 0:
+                            self.serializeError("System identifer contains both single and double quote characters")
+                        quote_char = "'"
+                    else:
+                        quote_char = '"'
+                    doctype += " %s%s%s" % (quote_char, token["systemId"], quote_char)
+
+                doctype += ">"
+                yield self.encodeStrict(doctype)
+
+            elif type in ("Characters", "SpaceCharacters"):
+                if type == "SpaceCharacters" or in_cdata:
+                    if in_cdata and token["data"].find("</") >= 0:
+                        self.serializeError("Unexpected </ in CDATA")
+                    yield self.encode(token["data"])
+                else:
+                    yield self.encode(escape(token["data"]))
+
+            elif type in ("StartTag", "EmptyTag"):
+                name = token["name"]
+                yield self.encodeStrict("<%s" % name)
+                if name in rcdataElements and not self.escape_rcdata:
+                    in_cdata = True
+                elif in_cdata:
+                    self.serializeError("Unexpected child element of a CDATA element")
+                for (_, attr_name), attr_value in token["data"].items():
+                    # TODO: Add namespace support here
+                    k = attr_name
+                    v = attr_value
+                    yield self.encodeStrict(' ')
+
+                    yield self.encodeStrict(k)
+                    if not self.minimize_boolean_attributes or \
+                        (k not in booleanAttributes.get(name, tuple()) and
+                         k not in booleanAttributes.get("", tuple())):
+                        yield self.encodeStrict("=")
+                        if self.quote_attr_values == "always" or len(v) == 0:
+                            quote_attr = True
+                        elif self.quote_attr_values == "spec":
+                            quote_attr = _quoteAttributeSpec.search(v) is not None
+                        elif self.quote_attr_values == "legacy":
+                            quote_attr = _quoteAttributeLegacy.search(v) is not None
+                        else:
+                            raise ValueError("quote_attr_values must be one of: "
+                                             "'always', 'spec', or 'legacy'")
+                        v = v.replace("&", "&")
+                        if self.escape_lt_in_attrs:
+                            v = v.replace("<", "<")
+                        if quote_attr:
+                            quote_char = self.quote_char
+                            if self.use_best_quote_char:
+                                if "'" in v and '"' not in v:
+                                    quote_char = '"'
+                                elif '"' in v and "'" not in v:
+                                    quote_char = "'"
+                            if quote_char == "'":
+                                v = v.replace("'", "'")
+                            else:
+                                v = v.replace('"', """)
+                            yield self.encodeStrict(quote_char)
+                            yield self.encode(v)
+                            yield self.encodeStrict(quote_char)
+                        else:
+                            yield self.encode(v)
+                if name in voidElements and self.use_trailing_solidus:
+                    if self.space_before_trailing_solidus:
+                        yield self.encodeStrict(" /")
+                    else:
+                        yield self.encodeStrict("/")
+                yield self.encode(">")
+
+            elif type == "EndTag":
+                name = token["name"]
+                if name in rcdataElements:
+                    in_cdata = False
+                elif in_cdata:
+                    self.serializeError("Unexpected child element of a CDATA element")
+                yield self.encodeStrict("</%s>" % name)
+
+            elif type == "Comment":
+                data = token["data"]
+                if data.find("--") >= 0:
+                    self.serializeError("Comment contains --")
+                yield self.encodeStrict("" % token["data"])
+
+            elif type == "Entity":
+                name = token["name"]
+                key = name + ";"
+                if key not in entities:
+                    self.serializeError("Entity %s not recognized" % name)
+                if self.resolve_entities and key not in xmlEntities:
+                    data = entities[key]
+                else:
+                    data = "&%s;" % name
+                yield self.encodeStrict(data)
+
+            else:
+                self.serializeError(token["data"])
+
+    def render(self, treewalker, encoding=None):
+        if encoding:
+            return b"".join(list(self.serialize(treewalker, encoding)))
+        else:
+            return "".join(list(self.serialize(treewalker)))
+
+    def serializeError(self, data="XXX ERROR MESSAGE NEEDED"):
+        # XXX The idea is to make data mandatory.
+        self.errors.append(data)
+        if self.strict:
+            raise SerializeError
+
+
+class SerializeError(Exception):
+    """Error in serialized tree"""
+    pass
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py
new file mode 100644
index 0000000..4f97846
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py
@@ -0,0 +1,12 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import sax
+
+__all__ = ["sax"]
+
+try:
+    from . import genshi  # noqa
+except ImportError:
+    pass
+else:
+    __all__.append("genshi")
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py
new file mode 100644
index 0000000..04e316d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py
@@ -0,0 +1,47 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from genshi.core import QName, Attrs
+from genshi.core import START, END, TEXT, COMMENT, DOCTYPE
+
+
+def to_genshi(walker):
+    text = []
+    for token in walker:
+        type = token["type"]
+        if type in ("Characters", "SpaceCharacters"):
+            text.append(token["data"])
+        elif text:
+            yield TEXT, "".join(text), (None, -1, -1)
+            text = []
+
+        if type in ("StartTag", "EmptyTag"):
+            if token["namespace"]:
+                name = "{%s}%s" % (token["namespace"], token["name"])
+            else:
+                name = token["name"]
+            attrs = Attrs([(QName("{%s}%s" % attr if attr[0] is not None else attr[1]), value)
+                           for attr, value in token["data"].items()])
+            yield (START, (QName(name), attrs), (None, -1, -1))
+            if type == "EmptyTag":
+                type = "EndTag"
+
+        if type == "EndTag":
+            if token["namespace"]:
+                name = "{%s}%s" % (token["namespace"], token["name"])
+            else:
+                name = token["name"]
+
+            yield END, QName(name), (None, -1, -1)
+
+        elif type == "Comment":
+            yield COMMENT, token["data"], (None, -1, -1)
+
+        elif type == "Doctype":
+            yield DOCTYPE, (token["name"], token["publicId"],
+                            token["systemId"]), (None, -1, -1)
+
+        else:
+            pass  # FIXME: What to do?
+
+    if text:
+        yield TEXT, "".join(text), (None, -1, -1)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py
new file mode 100644
index 0000000..ad47df9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py
@@ -0,0 +1,44 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.sax.xmlreader import AttributesNSImpl
+
+from ..constants import adjustForeignAttributes, unadjustForeignAttributes
+
+prefix_mapping = {}
+for prefix, localName, namespace in adjustForeignAttributes.values():
+    if prefix is not None:
+        prefix_mapping[prefix] = namespace
+
+
+def to_sax(walker, handler):
+    """Call SAX-like content handler based on treewalker walker"""
+    handler.startDocument()
+    for prefix, namespace in prefix_mapping.items():
+        handler.startPrefixMapping(prefix, namespace)
+
+    for token in walker:
+        type = token["type"]
+        if type == "Doctype":
+            continue
+        elif type in ("StartTag", "EmptyTag"):
+            attrs = AttributesNSImpl(token["data"],
+                                     unadjustForeignAttributes)
+            handler.startElementNS((token["namespace"], token["name"]),
+                                   token["name"],
+                                   attrs)
+            if type == "EmptyTag":
+                handler.endElementNS((token["namespace"], token["name"]),
+                                     token["name"])
+        elif type == "EndTag":
+            handler.endElementNS((token["namespace"], token["name"]),
+                                 token["name"])
+        elif type in ("Characters", "SpaceCharacters"):
+            handler.characters(token["data"])
+        elif type == "Comment":
+            pass
+        else:
+            assert False, "Unknown token type"
+
+    for prefix, namespace in prefix_mapping.items():
+        handler.endPrefixMapping(prefix)
+    handler.endDocument()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py
new file mode 100644
index 0000000..e232884
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py
@@ -0,0 +1,76 @@
+"""A collection of modules for building different kinds of tree from
+HTML documents.
+
+To create a treebuilder for a new type of tree, you need to do
+implement several things:
+
+1) A set of classes for various types of elements: Document, Doctype,
+Comment, Element. These must implement the interface of
+_base.treebuilders.Node (although comment nodes have a different
+signature for their constructor, see treebuilders.etree.Comment)
+Textual content may also be implemented as another node type, or not, as
+your tree implementation requires.
+
+2) A treebuilder object (called TreeBuilder by convention) that
+inherits from treebuilders._base.TreeBuilder. This has 4 required attributes:
+documentClass - the class to use for the bottommost node of a document
+elementClass - the class to use for HTML Elements
+commentClass - the class to use for comments
+doctypeClass - the class to use for doctypes
+It also has one required method:
+getDocument - Returns the root node of the complete document tree
+
+3) If you wish to run the unit tests, you must also create a
+testSerializer method on your treebuilder which accepts a node and
+returns a string containing Node and its children serialized according
+to the format used in the unittests
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .._utils import default_etree
+
+treeBuilderCache = {}
+
+
+def getTreeBuilder(treeType, implementation=None, **kwargs):
+    """Get a TreeBuilder class for various types of tree with built-in support
+
+    treeType - the name of the tree type required (case-insensitive). Supported
+               values are:
+
+               "dom" - A generic builder for DOM implementations, defaulting to
+                       a xml.dom.minidom based implementation.
+               "etree" - A generic builder for tree implementations exposing an
+                         ElementTree-like interface, defaulting to
+                         xml.etree.cElementTree if available and
+                         xml.etree.ElementTree if not.
+               "lxml" - A etree-based builder for lxml.etree, handling
+                        limitations of lxml's implementation.
+
+    implementation - (Currently applies to the "etree" and "dom" tree types). A
+                      module implementing the tree type e.g.
+                      xml.etree.ElementTree or xml.etree.cElementTree."""
+
+    treeType = treeType.lower()
+    if treeType not in treeBuilderCache:
+        if treeType == "dom":
+            from . import dom
+            # Come up with a sane default (pref. from the stdlib)
+            if implementation is None:
+                from xml.dom import minidom
+                implementation = minidom
+            # NEVER cache here, caching is done in the dom submodule
+            return dom.getDomModule(implementation, **kwargs).TreeBuilder
+        elif treeType == "lxml":
+            from . import etree_lxml
+            treeBuilderCache[treeType] = etree_lxml.TreeBuilder
+        elif treeType == "etree":
+            from . import etree
+            if implementation is None:
+                implementation = default_etree
+            # NEVER cache here, caching is done in the etree submodule
+            return etree.getETreeModule(implementation, **kwargs).TreeBuilder
+        else:
+            raise ValueError("""Unrecognised treebuilder "%s" """ % treeType)
+    return treeBuilderCache.get(treeType)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py
new file mode 100644
index 0000000..9798f7c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py
@@ -0,0 +1,383 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from ..constants import scopingElements, tableInsertModeElements, namespaces
+
+# The scope markers are inserted when entering object elements,
+# marquees, table cells, and table captions, and are used to prevent formatting
+# from "leaking" into tables, object elements, and marquees.
+Marker = None
+
+listElementsMap = {
+    None: (frozenset(scopingElements), False),
+    "button": (frozenset(scopingElements | set([(namespaces["html"], "button")])), False),
+    "list": (frozenset(scopingElements | set([(namespaces["html"], "ol"),
+                                              (namespaces["html"], "ul")])), False),
+    "table": (frozenset([(namespaces["html"], "html"),
+                         (namespaces["html"], "table")]), False),
+    "select": (frozenset([(namespaces["html"], "optgroup"),
+                          (namespaces["html"], "option")]), True)
+}
+
+
+class Node(object):
+    def __init__(self, name):
+        """Node representing an item in the tree.
+        name - The tag name associated with the node
+        parent - The parent of the current node (or None for the document node)
+        value - The value of the current node (applies to text nodes and
+        comments
+        attributes - a dict holding name, value pairs for attributes of the node
+        childNodes - a list of child nodes of the current node. This must
+        include all elements but not necessarily other node types
+        _flags - A list of miscellaneous flags that can be set on the node
+        """
+        self.name = name
+        self.parent = None
+        self.value = None
+        self.attributes = {}
+        self.childNodes = []
+        self._flags = []
+
+    def __str__(self):
+        attributesStr = " ".join(["%s=\"%s\"" % (name, value)
+                                  for name, value in
+                                  self.attributes.items()])
+        if attributesStr:
+            return "<%s %s>" % (self.name, attributesStr)
+        else:
+            return "<%s>" % (self.name)
+
+    def __repr__(self):
+        return "<%s>" % (self.name)
+
+    def appendChild(self, node):
+        """Insert node as a child of the current node
+        """
+        raise NotImplementedError
+
+    def insertText(self, data, insertBefore=None):
+        """Insert data as text in the current node, positioned before the
+        start of node insertBefore or to the end of the node's text.
+        """
+        raise NotImplementedError
+
+    def insertBefore(self, node, refNode):
+        """Insert node as a child of the current node, before refNode in the
+        list of child nodes. Raises ValueError if refNode is not a child of
+        the current node"""
+        raise NotImplementedError
+
+    def removeChild(self, node):
+        """Remove node from the children of the current node
+        """
+        raise NotImplementedError
+
+    def reparentChildren(self, newParent):
+        """Move all the children of the current node to newParent.
+        This is needed so that trees that don't store text as nodes move the
+        text in the correct way
+        """
+        # XXX - should this method be made more general?
+        for child in self.childNodes:
+            newParent.appendChild(child)
+        self.childNodes = []
+
+    def cloneNode(self):
+        """Return a shallow copy of the current node i.e. a node with the same
+        name and attributes but with no parent or child nodes
+        """
+        raise NotImplementedError
+
+    def hasContent(self):
+        """Return true if the node has children or text, false otherwise
+        """
+        raise NotImplementedError
+
+
+class ActiveFormattingElements(list):
+    def append(self, node):
+        equalCount = 0
+        if node != Marker:
+            for element in self[::-1]:
+                if element == Marker:
+                    break
+                if self.nodesEqual(element, node):
+                    equalCount += 1
+                if equalCount == 3:
+                    self.remove(element)
+                    break
+        list.append(self, node)
+
+    def nodesEqual(self, node1, node2):
+        if not node1.nameTuple == node2.nameTuple:
+            return False
+
+        if not node1.attributes == node2.attributes:
+            return False
+
+        return True
+
+
+class TreeBuilder(object):
+    """Base treebuilder implementation
+    documentClass - the class to use for the bottommost node of a document
+    elementClass - the class to use for HTML Elements
+    commentClass - the class to use for comments
+    doctypeClass - the class to use for doctypes
+    """
+    # pylint:disable=not-callable
+
+    # Document class
+    documentClass = None
+
+    # The class to use for creating a node
+    elementClass = None
+
+    # The class to use for creating comments
+    commentClass = None
+
+    # The class to use for creating doctypes
+    doctypeClass = None
+
+    # Fragment class
+    fragmentClass = None
+
+    def __init__(self, namespaceHTMLElements):
+        if namespaceHTMLElements:
+            self.defaultNamespace = "http://www.w3.org/1999/xhtml"
+        else:
+            self.defaultNamespace = None
+        self.reset()
+
+    def reset(self):
+        self.openElements = []
+        self.activeFormattingElements = ActiveFormattingElements()
+
+        # XXX - rename these to headElement, formElement
+        self.headPointer = None
+        self.formPointer = None
+
+        self.insertFromTable = False
+
+        self.document = self.documentClass()
+
+    def elementInScope(self, target, variant=None):
+
+        # If we pass a node in we match that. if we pass a string
+        # match any node with that name
+        exactNode = hasattr(target, "nameTuple")
+        if not exactNode:
+            if isinstance(target, text_type):
+                target = (namespaces["html"], target)
+            assert isinstance(target, tuple)
+
+        listElements, invert = listElementsMap[variant]
+
+        for node in reversed(self.openElements):
+            if exactNode and node == target:
+                return True
+            elif not exactNode and node.nameTuple == target:
+                return True
+            elif (invert ^ (node.nameTuple in listElements)):
+                return False
+
+        assert False  # We should never reach this point
+
+    def reconstructActiveFormattingElements(self):
+        # Within this algorithm the order of steps described in the
+        # specification is not quite the same as the order of steps in the
+        # code. It should still do the same though.
+
+        # Step 1: stop the algorithm when there's nothing to do.
+        if not self.activeFormattingElements:
+            return
+
+        # Step 2 and step 3: we start with the last element. So i is -1.
+        i = len(self.activeFormattingElements) - 1
+        entry = self.activeFormattingElements[i]
+        if entry == Marker or entry in self.openElements:
+            return
+
+        # Step 6
+        while entry != Marker and entry not in self.openElements:
+            if i == 0:
+                # This will be reset to 0 below
+                i = -1
+                break
+            i -= 1
+            # Step 5: let entry be one earlier in the list.
+            entry = self.activeFormattingElements[i]
+
+        while True:
+            # Step 7
+            i += 1
+
+            # Step 8
+            entry = self.activeFormattingElements[i]
+            clone = entry.cloneNode()  # Mainly to get a new copy of the attributes
+
+            # Step 9
+            element = self.insertElement({"type": "StartTag",
+                                          "name": clone.name,
+                                          "namespace": clone.namespace,
+                                          "data": clone.attributes})
+
+            # Step 10
+            self.activeFormattingElements[i] = element
+
+            # Step 11
+            if element == self.activeFormattingElements[-1]:
+                break
+
+    def clearActiveFormattingElements(self):
+        entry = self.activeFormattingElements.pop()
+        while self.activeFormattingElements and entry != Marker:
+            entry = self.activeFormattingElements.pop()
+
+    def elementInActiveFormattingElements(self, name):
+        """Check if an element exists between the end of the active
+        formatting elements and the last marker. If it does, return it, else
+        return false"""
+
+        for item in self.activeFormattingElements[::-1]:
+            # Check for Marker first because if it's a Marker it doesn't have a
+            # name attribute.
+            if item == Marker:
+                break
+            elif item.name == name:
+                return item
+        return False
+
+    def insertRoot(self, token):
+        element = self.createElement(token)
+        self.openElements.append(element)
+        self.document.appendChild(element)
+
+    def insertDoctype(self, token):
+        name = token["name"]
+        publicId = token["publicId"]
+        systemId = token["systemId"]
+
+        doctype = self.doctypeClass(name, publicId, systemId)
+        self.document.appendChild(doctype)
+
+    def insertComment(self, token, parent=None):
+        if parent is None:
+            parent = self.openElements[-1]
+        parent.appendChild(self.commentClass(token["data"]))
+
+    def createElement(self, token):
+        """Create an element but don't insert it anywhere"""
+        name = token["name"]
+        namespace = token.get("namespace", self.defaultNamespace)
+        element = self.elementClass(name, namespace)
+        element.attributes = token["data"]
+        return element
+
+    def _getInsertFromTable(self):
+        return self._insertFromTable
+
+    def _setInsertFromTable(self, value):
+        """Switch the function used to insert an element from the
+        normal one to the misnested table one and back again"""
+        self._insertFromTable = value
+        if value:
+            self.insertElement = self.insertElementTable
+        else:
+            self.insertElement = self.insertElementNormal
+
+    insertFromTable = property(_getInsertFromTable, _setInsertFromTable)
+
+    def insertElementNormal(self, token):
+        name = token["name"]
+        assert isinstance(name, text_type), "Element %s not unicode" % name
+        namespace = token.get("namespace", self.defaultNamespace)
+        element = self.elementClass(name, namespace)
+        element.attributes = token["data"]
+        self.openElements[-1].appendChild(element)
+        self.openElements.append(element)
+        return element
+
+    def insertElementTable(self, token):
+        """Create an element and insert it into the tree"""
+        element = self.createElement(token)
+        if self.openElements[-1].name not in tableInsertModeElements:
+            return self.insertElementNormal(token)
+        else:
+            # We should be in the InTable mode. This means we want to do
+            # special magic element rearranging
+            parent, insertBefore = self.getTableMisnestedNodePosition()
+            if insertBefore is None:
+                parent.appendChild(element)
+            else:
+                parent.insertBefore(element, insertBefore)
+            self.openElements.append(element)
+        return element
+
+    def insertText(self, data, parent=None):
+        """Insert text data."""
+        if parent is None:
+            parent = self.openElements[-1]
+
+        if (not self.insertFromTable or (self.insertFromTable and
+                                         self.openElements[-1].name
+                                         not in tableInsertModeElements)):
+            parent.insertText(data)
+        else:
+            # We should be in the InTable mode. This means we want to do
+            # special magic element rearranging
+            parent, insertBefore = self.getTableMisnestedNodePosition()
+            parent.insertText(data, insertBefore)
+
+    def getTableMisnestedNodePosition(self):
+        """Get the foster parent element, and sibling to insert before
+        (or None) when inserting a misnested table node"""
+        # The foster parent element is the one which comes before the most
+        # recently opened table element
+        # XXX - this is really inelegant
+        lastTable = None
+        fosterParent = None
+        insertBefore = None
+        for elm in self.openElements[::-1]:
+            if elm.name == "table":
+                lastTable = elm
+                break
+        if lastTable:
+            # XXX - we should really check that this parent is actually a
+            # node here
+            if lastTable.parent:
+                fosterParent = lastTable.parent
+                insertBefore = lastTable
+            else:
+                fosterParent = self.openElements[
+                    self.openElements.index(lastTable) - 1]
+        else:
+            fosterParent = self.openElements[0]
+        return fosterParent, insertBefore
+
+    def generateImpliedEndTags(self, exclude=None):
+        name = self.openElements[-1].name
+        # XXX td, th and tr are not actually needed
+        if (name in frozenset(("dd", "dt", "li", "option", "optgroup", "p", "rp", "rt")) and
+                name != exclude):
+            self.openElements.pop()
+            # XXX This is not entirely what the specification says. We should
+            # investigate it more closely.
+            self.generateImpliedEndTags(exclude)
+
+    def getDocument(self):
+        "Return the final tree"
+        return self.document
+
+    def getFragment(self):
+        "Return the final fragment"
+        # assert self.innerHTML
+        fragment = self.fragmentClass()
+        self.openElements[0].reparentChildren(fragment)
+        return fragment
+
+    def testSerializer(self, node):
+        """Serialize the subtree of node in the format required by unit tests
+        node - the node from which to start serializing"""
+        raise NotImplementedError
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py
new file mode 100644
index 0000000..dcfac22
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py
@@ -0,0 +1,236 @@
+from __future__ import absolute_import, division, unicode_literals
+
+
+from collections import MutableMapping
+from xml.dom import minidom, Node
+import weakref
+
+from . import base
+from .. import constants
+from ..constants import namespaces
+from .._utils import moduleFactoryFactory
+
+
+def getDomBuilder(DomImplementation):
+    Dom = DomImplementation
+
+    class AttrList(MutableMapping):
+        def __init__(self, element):
+            self.element = element
+
+        def __iter__(self):
+            return iter(self.element.attributes.keys())
+
+        def __setitem__(self, name, value):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                attr = self.element.ownerDocument.createAttribute(name)
+                attr.value = value
+                self.element.attributes[name] = attr
+
+        def __len__(self):
+            return len(self.element.attributes)
+
+        def items(self):
+            return list(self.element.attributes.items())
+
+        def values(self):
+            return list(self.element.attributes.values())
+
+        def __getitem__(self, name):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                return self.element.attributes[name].value
+
+        def __delitem__(self, name):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                del self.element.attributes[name]
+
+    class NodeBuilder(base.Node):
+        def __init__(self, element):
+            base.Node.__init__(self, element.nodeName)
+            self.element = element
+
+        namespace = property(lambda self: hasattr(self.element, "namespaceURI") and
+                             self.element.namespaceURI or None)
+
+        def appendChild(self, node):
+            node.parent = self
+            self.element.appendChild(node.element)
+
+        def insertText(self, data, insertBefore=None):
+            text = self.element.ownerDocument.createTextNode(data)
+            if insertBefore:
+                self.element.insertBefore(text, insertBefore.element)
+            else:
+                self.element.appendChild(text)
+
+        def insertBefore(self, node, refNode):
+            self.element.insertBefore(node.element, refNode.element)
+            node.parent = self
+
+        def removeChild(self, node):
+            if node.element.parentNode == self.element:
+                self.element.removeChild(node.element)
+            node.parent = None
+
+        def reparentChildren(self, newParent):
+            while self.element.hasChildNodes():
+                child = self.element.firstChild
+                self.element.removeChild(child)
+                newParent.element.appendChild(child)
+            self.childNodes = []
+
+        def getAttributes(self):
+            return AttrList(self.element)
+
+        def setAttributes(self, attributes):
+            if attributes:
+                for name, value in list(attributes.items()):
+                    if isinstance(name, tuple):
+                        if name[0] is not None:
+                            qualifiedName = (name[0] + ":" + name[1])
+                        else:
+                            qualifiedName = name[1]
+                        self.element.setAttributeNS(name[2], qualifiedName,
+                                                    value)
+                    else:
+                        self.element.setAttribute(
+                            name, value)
+        attributes = property(getAttributes, setAttributes)
+
+        def cloneNode(self):
+            return NodeBuilder(self.element.cloneNode(False))
+
+        def hasContent(self):
+            return self.element.hasChildNodes()
+
+        def getNameTuple(self):
+            if self.namespace is None:
+                return namespaces["html"], self.name
+            else:
+                return self.namespace, self.name
+
+        nameTuple = property(getNameTuple)
+
+    class TreeBuilder(base.TreeBuilder):  # pylint:disable=unused-variable
+        def documentClass(self):
+            self.dom = Dom.getDOMImplementation().createDocument(None, None, None)
+            return weakref.proxy(self)
+
+        def insertDoctype(self, token):
+            name = token["name"]
+            publicId = token["publicId"]
+            systemId = token["systemId"]
+
+            domimpl = Dom.getDOMImplementation()
+            doctype = domimpl.createDocumentType(name, publicId, systemId)
+            self.document.appendChild(NodeBuilder(doctype))
+            if Dom == minidom:
+                doctype.ownerDocument = self.dom
+
+        def elementClass(self, name, namespace=None):
+            if namespace is None and self.defaultNamespace is None:
+                node = self.dom.createElement(name)
+            else:
+                node = self.dom.createElementNS(namespace, name)
+
+            return NodeBuilder(node)
+
+        def commentClass(self, data):
+            return NodeBuilder(self.dom.createComment(data))
+
+        def fragmentClass(self):
+            return NodeBuilder(self.dom.createDocumentFragment())
+
+        def appendChild(self, node):
+            self.dom.appendChild(node.element)
+
+        def testSerializer(self, element):
+            return testSerializer(element)
+
+        def getDocument(self):
+            return self.dom
+
+        def getFragment(self):
+            return base.TreeBuilder.getFragment(self).element
+
+        def insertText(self, data, parent=None):
+            data = data
+            if parent != self:
+                base.TreeBuilder.insertText(self, data, parent)
+            else:
+                # HACK: allow text nodes as children of the document node
+                if hasattr(self.dom, '_child_node_types'):
+                    # pylint:disable=protected-access
+                    if Node.TEXT_NODE not in self.dom._child_node_types:
+                        self.dom._child_node_types = list(self.dom._child_node_types)
+                        self.dom._child_node_types.append(Node.TEXT_NODE)
+                self.dom.appendChild(self.dom.createTextNode(data))
+
+        implementation = DomImplementation
+        name = None
+
+    def testSerializer(element):
+        element.normalize()
+        rv = []
+
+        def serializeElement(element, indent=0):
+            if element.nodeType == Node.DOCUMENT_TYPE_NODE:
+                if element.name:
+                    if element.publicId or element.systemId:
+                        publicId = element.publicId or ""
+                        systemId = element.systemId or ""
+                        rv.append("""|%s<!DOCTYPE %s "%s" "%s">""" %
+                                  (' ' * indent, element.name, publicId, systemId))
+                    else:
+                        rv.append("|%s<!DOCTYPE %s>" % (' ' * indent, element.name))
+                else:
+                    rv.append("|%s<!DOCTYPE >" % (' ' * indent,))
+            elif element.nodeType == Node.DOCUMENT_NODE:
+                rv.append("#document")
+            elif element.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
+                rv.append("#document-fragment")
+            elif element.nodeType == Node.COMMENT_NODE:
+                rv.append("|%s" % (' ' * indent, element.nodeValue))
+            elif element.nodeType == Node.TEXT_NODE:
+                rv.append("|%s\"%s\"" % (' ' * indent, element.nodeValue))
+            else:
+                if (hasattr(element, "namespaceURI") and
+                        element.namespaceURI is not None):
+                    name = "%s %s" % (constants.prefixes[element.namespaceURI],
+                                      element.nodeName)
+                else:
+                    name = element.nodeName
+                rv.append("|%s<%s>" % (' ' * indent, name))
+                if element.hasAttributes():
+                    attributes = []
+                    for i in range(len(element.attributes)):
+                        attr = element.attributes.item(i)
+                        name = attr.nodeName
+                        value = attr.value
+                        ns = attr.namespaceURI
+                        if ns:
+                            name = "%s %s" % (constants.prefixes[ns], attr.localName)
+                        else:
+                            name = attr.nodeName
+                        attributes.append((name, value))
+
+                    for name, value in sorted(attributes):
+                        rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+            indent += 2
+            for child in element.childNodes:
+                serializeElement(child, indent)
+        serializeElement(element, 0)
+
+        return "\n".join(rv)
+
+    return locals()
+
+
+# The actual means to get a module!
+getDomModule = moduleFactoryFactory(getDomBuilder)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py
new file mode 100644
index 0000000..0dedf44
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py
@@ -0,0 +1,340 @@
+from __future__ import absolute_import, division, unicode_literals
+# pylint:disable=protected-access
+
+from pip._vendor.six import text_type
+
+import re
+
+from . import base
+from .. import _ihatexml
+from .. import constants
+from ..constants import namespaces
+from .._utils import moduleFactoryFactory
+
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+
+def getETreeBuilder(ElementTreeImplementation, fullTree=False):
+    ElementTree = ElementTreeImplementation
+    ElementTreeCommentType = ElementTree.Comment("asd").tag
+
+    class Element(base.Node):
+        def __init__(self, name, namespace=None):
+            self._name = name
+            self._namespace = namespace
+            self._element = ElementTree.Element(self._getETreeTag(name,
+                                                                  namespace))
+            if namespace is None:
+                self.nameTuple = namespaces["html"], self._name
+            else:
+                self.nameTuple = self._namespace, self._name
+            self.parent = None
+            self._childNodes = []
+            self._flags = []
+
+        def _getETreeTag(self, name, namespace):
+            if namespace is None:
+                etree_tag = name
+            else:
+                etree_tag = "{%s}%s" % (namespace, name)
+            return etree_tag
+
+        def _setName(self, name):
+            self._name = name
+            self._element.tag = self._getETreeTag(self._name, self._namespace)
+
+        def _getName(self):
+            return self._name
+
+        name = property(_getName, _setName)
+
+        def _setNamespace(self, namespace):
+            self._namespace = namespace
+            self._element.tag = self._getETreeTag(self._name, self._namespace)
+
+        def _getNamespace(self):
+            return self._namespace
+
+        namespace = property(_getNamespace, _setNamespace)
+
+        def _getAttributes(self):
+            return self._element.attrib
+
+        def _setAttributes(self, attributes):
+            # Delete existing attributes first
+            # XXX - there may be a better way to do this...
+            for key in list(self._element.attrib.keys()):
+                del self._element.attrib[key]
+            for key, value in attributes.items():
+                if isinstance(key, tuple):
+                    name = "{%s}%s" % (key[2], key[1])
+                else:
+                    name = key
+                self._element.set(name, value)
+
+        attributes = property(_getAttributes, _setAttributes)
+
+        def _getChildNodes(self):
+            return self._childNodes
+
+        def _setChildNodes(self, value):
+            del self._element[:]
+            self._childNodes = []
+            for element in value:
+                self.insertChild(element)
+
+        childNodes = property(_getChildNodes, _setChildNodes)
+
+        def hasContent(self):
+            """Return true if the node has children or text"""
+            return bool(self._element.text or len(self._element))
+
+        def appendChild(self, node):
+            self._childNodes.append(node)
+            self._element.append(node._element)
+            node.parent = self
+
+        def insertBefore(self, node, refNode):
+            index = list(self._element).index(refNode._element)
+            self._element.insert(index, node._element)
+            node.parent = self
+
+        def removeChild(self, node):
+            self._childNodes.remove(node)
+            self._element.remove(node._element)
+            node.parent = None
+
+        def insertText(self, data, insertBefore=None):
+            if not(len(self._element)):
+                if not self._element.text:
+                    self._element.text = ""
+                self._element.text += data
+            elif insertBefore is None:
+                # Insert the text as the tail of the last child element
+                if not self._element[-1].tail:
+                    self._element[-1].tail = ""
+                self._element[-1].tail += data
+            else:
+                # Insert the text before the specified node
+                children = list(self._element)
+                index = children.index(insertBefore._element)
+                if index > 0:
+                    if not self._element[index - 1].tail:
+                        self._element[index - 1].tail = ""
+                    self._element[index - 1].tail += data
+                else:
+                    if not self._element.text:
+                        self._element.text = ""
+                    self._element.text += data
+
+        def cloneNode(self):
+            element = type(self)(self.name, self.namespace)
+            for name, value in self.attributes.items():
+                element.attributes[name] = value
+            return element
+
+        def reparentChildren(self, newParent):
+            if newParent.childNodes:
+                newParent.childNodes[-1]._element.tail += self._element.text
+            else:
+                if not newParent._element.text:
+                    newParent._element.text = ""
+                if self._element.text is not None:
+                    newParent._element.text += self._element.text
+            self._element.text = ""
+            base.Node.reparentChildren(self, newParent)
+
+    class Comment(Element):
+        def __init__(self, data):
+            # Use the superclass constructor to set all properties on the
+            # wrapper element
+            self._element = ElementTree.Comment(data)
+            self.parent = None
+            self._childNodes = []
+            self._flags = []
+
+        def _getData(self):
+            return self._element.text
+
+        def _setData(self, value):
+            self._element.text = value
+
+        data = property(_getData, _setData)
+
+    class DocumentType(Element):
+        def __init__(self, name, publicId, systemId):
+            Element.__init__(self, "<!DOCTYPE>")
+            self._element.text = name
+            self.publicId = publicId
+            self.systemId = systemId
+
+        def _getPublicId(self):
+            return self._element.get("publicId", "")
+
+        def _setPublicId(self, value):
+            if value is not None:
+                self._element.set("publicId", value)
+
+        publicId = property(_getPublicId, _setPublicId)
+
+        def _getSystemId(self):
+            return self._element.get("systemId", "")
+
+        def _setSystemId(self, value):
+            if value is not None:
+                self._element.set("systemId", value)
+
+        systemId = property(_getSystemId, _setSystemId)
+
+    class Document(Element):
+        def __init__(self):
+            Element.__init__(self, "DOCUMENT_ROOT")
+
+    class DocumentFragment(Element):
+        def __init__(self):
+            Element.__init__(self, "DOCUMENT_FRAGMENT")
+
+    def testSerializer(element):
+        rv = []
+
+        def serializeElement(element, indent=0):
+            if not(hasattr(element, "tag")):
+                element = element.getroot()
+            if element.tag == "<!DOCTYPE>":
+                if element.get("publicId") or element.get("systemId"):
+                    publicId = element.get("publicId") or ""
+                    systemId = element.get("systemId") or ""
+                    rv.append("""<!DOCTYPE %s "%s" "%s">""" %
+                              (element.text, publicId, systemId))
+                else:
+                    rv.append("<!DOCTYPE %s>" % (element.text,))
+            elif element.tag == "DOCUMENT_ROOT":
+                rv.append("#document")
+                if element.text is not None:
+                    rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+                if element.tail is not None:
+                    raise TypeError("Document node cannot have tail")
+                if hasattr(element, "attrib") and len(element.attrib):
+                    raise TypeError("Document node cannot have attributes")
+            elif element.tag == ElementTreeCommentType:
+                rv.append("|%s" % (' ' * indent, element.text))
+            else:
+                assert isinstance(element.tag, text_type), \
+                    "Expected unicode, got %s, %s" % (type(element.tag), element.tag)
+                nsmatch = tag_regexp.match(element.tag)
+
+                if nsmatch is None:
+                    name = element.tag
+                else:
+                    ns, name = nsmatch.groups()
+                    prefix = constants.prefixes[ns]
+                    name = "%s %s" % (prefix, name)
+                rv.append("|%s<%s>" % (' ' * indent, name))
+
+                if hasattr(element, "attrib"):
+                    attributes = []
+                    for name, value in element.attrib.items():
+                        nsmatch = tag_regexp.match(name)
+                        if nsmatch is not None:
+                            ns, name = nsmatch.groups()
+                            prefix = constants.prefixes[ns]
+                            attr_string = "%s %s" % (prefix, name)
+                        else:
+                            attr_string = name
+                        attributes.append((attr_string, value))
+
+                    for name, value in sorted(attributes):
+                        rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+                if element.text:
+                    rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+            indent += 2
+            for child in element:
+                serializeElement(child, indent)
+            if element.tail:
+                rv.append("|%s\"%s\"" % (' ' * (indent - 2), element.tail))
+        serializeElement(element, 0)
+
+        return "\n".join(rv)
+
+    def tostring(element):  # pylint:disable=unused-variable
+        """Serialize an element and its child nodes to a string"""
+        rv = []
+        filter = _ihatexml.InfosetFilter()
+
+        def serializeElement(element):
+            if isinstance(element, ElementTree.ElementTree):
+                element = element.getroot()
+
+            if element.tag == "<!DOCTYPE>":
+                if element.get("publicId") or element.get("systemId"):
+                    publicId = element.get("publicId") or ""
+                    systemId = element.get("systemId") or ""
+                    rv.append("""<!DOCTYPE %s PUBLIC "%s" "%s">""" %
+                              (element.text, publicId, systemId))
+                else:
+                    rv.append("<!DOCTYPE %s>" % (element.text,))
+            elif element.tag == "DOCUMENT_ROOT":
+                if element.text is not None:
+                    rv.append(element.text)
+                if element.tail is not None:
+                    raise TypeError("Document node cannot have tail")
+                if hasattr(element, "attrib") and len(element.attrib):
+                    raise TypeError("Document node cannot have attributes")
+
+                for child in element:
+                    serializeElement(child)
+
+            elif element.tag == ElementTreeCommentType:
+                rv.append("" % (element.text,))
+            else:
+                # This is assumed to be an ordinary element
+                if not element.attrib:
+                    rv.append("<%s>" % (filter.fromXmlName(element.tag),))
+                else:
+                    attr = " ".join(["%s=\"%s\"" % (
+                        filter.fromXmlName(name), value)
+                        for name, value in element.attrib.items()])
+                    rv.append("<%s %s>" % (element.tag, attr))
+                if element.text:
+                    rv.append(element.text)
+
+                for child in element:
+                    serializeElement(child)
+
+                rv.append("</%s>" % (element.tag,))
+
+            if element.tail:
+                rv.append(element.tail)
+
+        serializeElement(element)
+
+        return "".join(rv)
+
+    class TreeBuilder(base.TreeBuilder):  # pylint:disable=unused-variable
+        documentClass = Document
+        doctypeClass = DocumentType
+        elementClass = Element
+        commentClass = Comment
+        fragmentClass = DocumentFragment
+        implementation = ElementTreeImplementation
+
+        def testSerializer(self, element):
+            return testSerializer(element)
+
+        def getDocument(self):
+            if fullTree:
+                return self.document._element
+            else:
+                if self.defaultNamespace is not None:
+                    return self.document._element.find(
+                        "{%s}html" % self.defaultNamespace)
+                else:
+                    return self.document._element.find("html")
+
+        def getFragment(self):
+            return base.TreeBuilder.getFragment(self)._element
+
+    return locals()
+
+
+getETreeModule = moduleFactoryFactory(getETreeBuilder)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py
new file mode 100644
index 0000000..908820c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py
@@ -0,0 +1,367 @@
+"""Module for supporting the lxml.etree library. The idea here is to use as much
+of the native library as possible, without using fragile hacks like custom element
+names that break between releases. The downside of this is that we cannot represent
+all possible trees; specifically the following are known to cause problems:
+
+Text or comments as siblings of the root element
+Docypes with no name
+
+When any of these things occur, we emit a DataLossWarning
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+# pylint:disable=protected-access
+
+import warnings
+import re
+import sys
+
+from . import base
+from ..constants import DataLossWarning
+from .. import constants
+from . import etree as etree_builders
+from .. import _ihatexml
+
+import lxml.etree as etree
+
+
+fullTree = True
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+comment_type = etree.Comment("asd").tag
+
+
+class DocumentType(object):
+    def __init__(self, name, publicId, systemId):
+        self.name = name
+        self.publicId = publicId
+        self.systemId = systemId
+
+
+class Document(object):
+    def __init__(self):
+        self._elementTree = None
+        self._childNodes = []
+
+    def appendChild(self, element):
+        self._elementTree.getroot().addnext(element._element)
+
+    def _getChildNodes(self):
+        return self._childNodes
+
+    childNodes = property(_getChildNodes)
+
+
+def testSerializer(element):
+    rv = []
+    infosetFilter = _ihatexml.InfosetFilter(preventDoubleDashComments=True)
+
+    def serializeElement(element, indent=0):
+        if not hasattr(element, "tag"):
+            if hasattr(element, "getroot"):
+                # Full tree case
+                rv.append("#document")
+                if element.docinfo.internalDTD:
+                    if not (element.docinfo.public_id or
+                            element.docinfo.system_url):
+                        dtd_str = "<!DOCTYPE %s>" % element.docinfo.root_name
+                    else:
+                        dtd_str = """<!DOCTYPE %s "%s" "%s">""" % (
+                            element.docinfo.root_name,
+                            element.docinfo.public_id,
+                            element.docinfo.system_url)
+                    rv.append("|%s%s" % (' ' * (indent + 2), dtd_str))
+                next_element = element.getroot()
+                while next_element.getprevious() is not None:
+                    next_element = next_element.getprevious()
+                while next_element is not None:
+                    serializeElement(next_element, indent + 2)
+                    next_element = next_element.getnext()
+            elif isinstance(element, str) or isinstance(element, bytes):
+                # Text in a fragment
+                assert isinstance(element, str) or sys.version_info[0] == 2
+                rv.append("|%s\"%s\"" % (' ' * indent, element))
+            else:
+                # Fragment case
+                rv.append("#document-fragment")
+                for next_element in element:
+                    serializeElement(next_element, indent + 2)
+        elif element.tag == comment_type:
+            rv.append("|%s" % (' ' * indent, element.text))
+            if hasattr(element, "tail") and element.tail:
+                rv.append("|%s\"%s\"" % (' ' * indent, element.tail))
+        else:
+            assert isinstance(element, etree._Element)
+            nsmatch = etree_builders.tag_regexp.match(element.tag)
+            if nsmatch is not None:
+                ns = nsmatch.group(1)
+                tag = nsmatch.group(2)
+                prefix = constants.prefixes[ns]
+                rv.append("|%s<%s %s>" % (' ' * indent, prefix,
+                                          infosetFilter.fromXmlName(tag)))
+            else:
+                rv.append("|%s<%s>" % (' ' * indent,
+                                       infosetFilter.fromXmlName(element.tag)))
+
+            if hasattr(element, "attrib"):
+                attributes = []
+                for name, value in element.attrib.items():
+                    nsmatch = tag_regexp.match(name)
+                    if nsmatch is not None:
+                        ns, name = nsmatch.groups()
+                        name = infosetFilter.fromXmlName(name)
+                        prefix = constants.prefixes[ns]
+                        attr_string = "%s %s" % (prefix, name)
+                    else:
+                        attr_string = infosetFilter.fromXmlName(name)
+                    attributes.append((attr_string, value))
+
+                for name, value in sorted(attributes):
+                    rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+
+            if element.text:
+                rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+            indent += 2
+            for child in element:
+                serializeElement(child, indent)
+            if hasattr(element, "tail") and element.tail:
+                rv.append("|%s\"%s\"" % (' ' * (indent - 2), element.tail))
+    serializeElement(element, 0)
+
+    return "\n".join(rv)
+
+
+def tostring(element):
+    """Serialize an element and its child nodes to a string"""
+    rv = []
+
+    def serializeElement(element):
+        if not hasattr(element, "tag"):
+            if element.docinfo.internalDTD:
+                if element.docinfo.doctype:
+                    dtd_str = element.docinfo.doctype
+                else:
+                    dtd_str = "<!DOCTYPE %s>" % element.docinfo.root_name
+                rv.append(dtd_str)
+            serializeElement(element.getroot())
+
+        elif element.tag == comment_type:
+            rv.append("" % (element.text,))
+
+        else:
+            # This is assumed to be an ordinary element
+            if not element.attrib:
+                rv.append("<%s>" % (element.tag,))
+            else:
+                attr = " ".join(["%s=\"%s\"" % (name, value)
+                                 for name, value in element.attrib.items()])
+                rv.append("<%s %s>" % (element.tag, attr))
+            if element.text:
+                rv.append(element.text)
+
+            for child in element:
+                serializeElement(child)
+
+            rv.append("</%s>" % (element.tag,))
+
+        if hasattr(element, "tail") and element.tail:
+            rv.append(element.tail)
+
+    serializeElement(element)
+
+    return "".join(rv)
+
+
+class TreeBuilder(base.TreeBuilder):
+    documentClass = Document
+    doctypeClass = DocumentType
+    elementClass = None
+    commentClass = None
+    fragmentClass = Document
+    implementation = etree
+
+    def __init__(self, namespaceHTMLElements, fullTree=False):
+        builder = etree_builders.getETreeModule(etree, fullTree=fullTree)
+        infosetFilter = self.infosetFilter = _ihatexml.InfosetFilter(preventDoubleDashComments=True)
+        self.namespaceHTMLElements = namespaceHTMLElements
+
+        class Attributes(dict):
+            def __init__(self, element, value=None):
+                if value is None:
+                    value = {}
+                self._element = element
+                dict.__init__(self, value)  # pylint:disable=non-parent-init-called
+                for key, value in self.items():
+                    if isinstance(key, tuple):
+                        name = "{%s}%s" % (key[2], infosetFilter.coerceAttribute(key[1]))
+                    else:
+                        name = infosetFilter.coerceAttribute(key)
+                    self._element._element.attrib[name] = value
+
+            def __setitem__(self, key, value):
+                dict.__setitem__(self, key, value)
+                if isinstance(key, tuple):
+                    name = "{%s}%s" % (key[2], infosetFilter.coerceAttribute(key[1]))
+                else:
+                    name = infosetFilter.coerceAttribute(key)
+                self._element._element.attrib[name] = value
+
+        class Element(builder.Element):
+            def __init__(self, name, namespace):
+                name = infosetFilter.coerceElement(name)
+                builder.Element.__init__(self, name, namespace=namespace)
+                self._attributes = Attributes(self)
+
+            def _setName(self, name):
+                self._name = infosetFilter.coerceElement(name)
+                self._element.tag = self._getETreeTag(
+                    self._name, self._namespace)
+
+            def _getName(self):
+                return infosetFilter.fromXmlName(self._name)
+
+            name = property(_getName, _setName)
+
+            def _getAttributes(self):
+                return self._attributes
+
+            def _setAttributes(self, attributes):
+                self._attributes = Attributes(self, attributes)
+
+            attributes = property(_getAttributes, _setAttributes)
+
+            def insertText(self, data, insertBefore=None):
+                data = infosetFilter.coerceCharacters(data)
+                builder.Element.insertText(self, data, insertBefore)
+
+            def appendChild(self, child):
+                builder.Element.appendChild(self, child)
+
+        class Comment(builder.Comment):
+            def __init__(self, data):
+                data = infosetFilter.coerceComment(data)
+                builder.Comment.__init__(self, data)
+
+            def _setData(self, data):
+                data = infosetFilter.coerceComment(data)
+                self._element.text = data
+
+            def _getData(self):
+                return self._element.text
+
+            data = property(_getData, _setData)
+
+        self.elementClass = Element
+        self.commentClass = Comment
+        # self.fragmentClass = builder.DocumentFragment
+        base.TreeBuilder.__init__(self, namespaceHTMLElements)
+
+    def reset(self):
+        base.TreeBuilder.reset(self)
+        self.insertComment = self.insertCommentInitial
+        self.initial_comments = []
+        self.doctype = None
+
+    def testSerializer(self, element):
+        return testSerializer(element)
+
+    def getDocument(self):
+        if fullTree:
+            return self.document._elementTree
+        else:
+            return self.document._elementTree.getroot()
+
+    def getFragment(self):
+        fragment = []
+        element = self.openElements[0]._element
+        if element.text:
+            fragment.append(element.text)
+        fragment.extend(list(element))
+        if element.tail:
+            fragment.append(element.tail)
+        return fragment
+
+    def insertDoctype(self, token):
+        name = token["name"]
+        publicId = token["publicId"]
+        systemId = token["systemId"]
+
+        if not name:
+            warnings.warn("lxml cannot represent empty doctype", DataLossWarning)
+            self.doctype = None
+        else:
+            coercedName = self.infosetFilter.coerceElement(name)
+            if coercedName != name:
+                warnings.warn("lxml cannot represent non-xml doctype", DataLossWarning)
+
+            doctype = self.doctypeClass(coercedName, publicId, systemId)
+            self.doctype = doctype
+
+    def insertCommentInitial(self, data, parent=None):
+        assert parent is None or parent is self.document
+        assert self.document._elementTree is None
+        self.initial_comments.append(data)
+
+    def insertCommentMain(self, data, parent=None):
+        if (parent == self.document and
+                self.document._elementTree.getroot()[-1].tag == comment_type):
+            warnings.warn("lxml cannot represent adjacent comments beyond the root elements", DataLossWarning)
+        super(TreeBuilder, self).insertComment(data, parent)
+
+    def insertRoot(self, token):
+        """Create the document root"""
+        # Because of the way libxml2 works, it doesn't seem to be possible to
+        # alter information like the doctype after the tree has been parsed.
+        # Therefore we need to use the built-in parser to create our initial
+        # tree, after which we can add elements like normal
+        docStr = ""
+        if self.doctype:
+            assert self.doctype.name
+            docStr += "<!DOCTYPE %s" % self.doctype.name
+            if (self.doctype.publicId is not None or
+                    self.doctype.systemId is not None):
+                docStr += (' PUBLIC "%s" ' %
+                           (self.infosetFilter.coercePubid(self.doctype.publicId or "")))
+                if self.doctype.systemId:
+                    sysid = self.doctype.systemId
+                    if sysid.find("'") >= 0 and sysid.find('"') >= 0:
+                        warnings.warn("DOCTYPE system cannot contain single and double quotes", DataLossWarning)
+                        sysid = sysid.replace("'", 'U00027')
+                    if sysid.find("'") >= 0:
+                        docStr += '"%s"' % sysid
+                    else:
+                        docStr += "'%s'" % sysid
+                else:
+                    docStr += "''"
+            docStr += ">"
+            if self.doctype.name != token["name"]:
+                warnings.warn("lxml cannot represent doctype with a different name to the root element", DataLossWarning)
+        docStr += "<THIS_SHOULD_NEVER_APPEAR_PUBLICLY/>"
+        root = etree.fromstring(docStr)
+
+        # Append the initial comments:
+        for comment_token in self.initial_comments:
+            comment = self.commentClass(comment_token["data"])
+            root.addprevious(comment._element)
+
+        # Create the root document and add the ElementTree to it
+        self.document = self.documentClass()
+        self.document._elementTree = root.getroottree()
+
+        # Give the root element the right name
+        name = token["name"]
+        namespace = token.get("namespace", self.defaultNamespace)
+        if namespace is None:
+            etree_tag = name
+        else:
+            etree_tag = "{%s}%s" % (namespace, name)
+        root.tag = etree_tag
+
+        # Add the root element to the internal child/open data structures
+        root_element = self.elementClass(name, namespace)
+        root_element._element = root
+        self.document._childNodes.append(root_element)
+        self.openElements.append(root_element)
+
+        # Reset to the default insert comment function
+        self.insertComment = self.insertCommentMain
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py
new file mode 100644
index 0000000..9e19a55
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py
@@ -0,0 +1,143 @@
+"""A collection of modules for iterating through different kinds of
+tree, generating tokens identical to those produced by the tokenizer
+module.
+
+To create a tree walker for a new type of tree, you need to do
+implement a tree walker object (called TreeWalker by convention) that
+implements a 'serialize' method taking a tree as sole argument and
+returning an iterator generating tokens.
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .. import constants
+from .._utils import default_etree
+
+__all__ = ["getTreeWalker", "pprint", "dom", "etree", "genshi", "etree_lxml"]
+
+treeWalkerCache = {}
+
+
+def getTreeWalker(treeType, implementation=None, **kwargs):
+    """Get a TreeWalker class for various types of tree with built-in support
+
+    Args:
+        treeType (str): the name of the tree type required (case-insensitive).
+            Supported values are:
+
+            - "dom": The xml.dom.minidom DOM implementation
+            - "etree": A generic walker for tree implementations exposing an
+                       elementtree-like interface (known to work with
+                       ElementTree, cElementTree and lxml.etree).
+            - "lxml": Optimized walker for lxml.etree
+            - "genshi": a Genshi stream
+
+        Implementation: A module implementing the tree type e.g.
+            xml.etree.ElementTree or cElementTree (Currently applies to the
+            "etree" tree type only).
+    """
+
+    treeType = treeType.lower()
+    if treeType not in treeWalkerCache:
+        if treeType == "dom":
+            from . import dom
+            treeWalkerCache[treeType] = dom.TreeWalker
+        elif treeType == "genshi":
+            from . import genshi
+            treeWalkerCache[treeType] = genshi.TreeWalker
+        elif treeType == "lxml":
+            from . import etree_lxml
+            treeWalkerCache[treeType] = etree_lxml.TreeWalker
+        elif treeType == "etree":
+            from . import etree
+            if implementation is None:
+                implementation = default_etree
+            # XXX: NEVER cache here, caching is done in the etree submodule
+            return etree.getETreeModule(implementation, **kwargs).TreeWalker
+    return treeWalkerCache.get(treeType)
+
+
+def concatenateCharacterTokens(tokens):
+    pendingCharacters = []
+    for token in tokens:
+        type = token["type"]
+        if type in ("Characters", "SpaceCharacters"):
+            pendingCharacters.append(token["data"])
+        else:
+            if pendingCharacters:
+                yield {"type": "Characters", "data": "".join(pendingCharacters)}
+                pendingCharacters = []
+            yield token
+    if pendingCharacters:
+        yield {"type": "Characters", "data": "".join(pendingCharacters)}
+
+
+def pprint(walker):
+    """Pretty printer for tree walkers"""
+    output = []
+    indent = 0
+    for token in concatenateCharacterTokens(walker):
+        type = token["type"]
+        if type in ("StartTag", "EmptyTag"):
+            # tag name
+            if token["namespace"] and token["namespace"] != constants.namespaces["html"]:
+                if token["namespace"] in constants.prefixes:
+                    ns = constants.prefixes[token["namespace"]]
+                else:
+                    ns = token["namespace"]
+                name = "%s %s" % (ns, token["name"])
+            else:
+                name = token["name"]
+            output.append("%s<%s>" % (" " * indent, name))
+            indent += 2
+            # attributes (sorted for consistent ordering)
+            attrs = token["data"]
+            for (namespace, localname), value in sorted(attrs.items()):
+                if namespace:
+                    if namespace in constants.prefixes:
+                        ns = constants.prefixes[namespace]
+                    else:
+                        ns = namespace
+                    name = "%s %s" % (ns, localname)
+                else:
+                    name = localname
+                output.append("%s%s=\"%s\"" % (" " * indent, name, value))
+            # self-closing
+            if type == "EmptyTag":
+                indent -= 2
+
+        elif type == "EndTag":
+            indent -= 2
+
+        elif type == "Comment":
+            output.append("%s" % (" " * indent, token["data"]))
+
+        elif type == "Doctype":
+            if token["name"]:
+                if token["publicId"]:
+                    output.append("""%s<!DOCTYPE %s "%s" "%s">""" %
+                                  (" " * indent,
+                                   token["name"],
+                                   token["publicId"],
+                                   token["systemId"] if token["systemId"] else ""))
+                elif token["systemId"]:
+                    output.append("""%s<!DOCTYPE %s "" "%s">""" %
+                                  (" " * indent,
+                                   token["name"],
+                                   token["systemId"]))
+                else:
+                    output.append("%s<!DOCTYPE %s>" % (" " * indent,
+                                                       token["name"]))
+            else:
+                output.append("%s<!DOCTYPE >" % (" " * indent,))
+
+        elif type == "Characters":
+            output.append("%s\"%s\"" % (" " * indent, token["data"]))
+
+        elif type == "SpaceCharacters":
+            assert False, "concatenateCharacterTokens should have got rid of all Space tokens"
+
+        else:
+            raise ValueError("Unknown token type, %s" % type)
+
+    return "\n".join(output)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py
new file mode 100644
index 0000000..36e1ba2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py
@@ -0,0 +1,150 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.dom import Node
+from ..constants import namespaces, voidElements, spaceCharacters
+
+__all__ = ["DOCUMENT", "DOCTYPE", "TEXT", "ELEMENT", "COMMENT", "ENTITY", "UNKNOWN",
+           "TreeWalker", "NonRecursiveTreeWalker"]
+
+DOCUMENT = Node.DOCUMENT_NODE
+DOCTYPE = Node.DOCUMENT_TYPE_NODE
+TEXT = Node.TEXT_NODE
+ELEMENT = Node.ELEMENT_NODE
+COMMENT = Node.COMMENT_NODE
+ENTITY = Node.ENTITY_NODE
+UNKNOWN = "<#UNKNOWN#>"
+
+spaceCharacters = "".join(spaceCharacters)
+
+
+class TreeWalker(object):
+    def __init__(self, tree):
+        self.tree = tree
+
+    def __iter__(self):
+        raise NotImplementedError
+
+    def error(self, msg):
+        return {"type": "SerializeError", "data": msg}
+
+    def emptyTag(self, namespace, name, attrs, hasChildren=False):
+        yield {"type": "EmptyTag", "name": name,
+               "namespace": namespace,
+               "data": attrs}
+        if hasChildren:
+            yield self.error("Void element has children")
+
+    def startTag(self, namespace, name, attrs):
+        return {"type": "StartTag",
+                "name": name,
+                "namespace": namespace,
+                "data": attrs}
+
+    def endTag(self, namespace, name):
+        return {"type": "EndTag",
+                "name": name,
+                "namespace": namespace}
+
+    def text(self, data):
+        data = data
+        middle = data.lstrip(spaceCharacters)
+        left = data[:len(data) - len(middle)]
+        if left:
+            yield {"type": "SpaceCharacters", "data": left}
+        data = middle
+        middle = data.rstrip(spaceCharacters)
+        right = data[len(middle):]
+        if middle:
+            yield {"type": "Characters", "data": middle}
+        if right:
+            yield {"type": "SpaceCharacters", "data": right}
+
+    def comment(self, data):
+        return {"type": "Comment", "data": data}
+
+    def doctype(self, name, publicId=None, systemId=None):
+        return {"type": "Doctype",
+                "name": name,
+                "publicId": publicId,
+                "systemId": systemId}
+
+    def entity(self, name):
+        return {"type": "Entity", "name": name}
+
+    def unknown(self, nodeType):
+        return self.error("Unknown node type: " + nodeType)
+
+
+class NonRecursiveTreeWalker(TreeWalker):
+    def getNodeDetails(self, node):
+        raise NotImplementedError
+
+    def getFirstChild(self, node):
+        raise NotImplementedError
+
+    def getNextSibling(self, node):
+        raise NotImplementedError
+
+    def getParentNode(self, node):
+        raise NotImplementedError
+
+    def __iter__(self):
+        currentNode = self.tree
+        while currentNode is not None:
+            details = self.getNodeDetails(currentNode)
+            type, details = details[0], details[1:]
+            hasChildren = False
+
+            if type == DOCTYPE:
+                yield self.doctype(*details)
+
+            elif type == TEXT:
+                for token in self.text(*details):
+                    yield token
+
+            elif type == ELEMENT:
+                namespace, name, attributes, hasChildren = details
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    for token in self.emptyTag(namespace, name, attributes,
+                                               hasChildren):
+                        yield token
+                    hasChildren = False
+                else:
+                    yield self.startTag(namespace, name, attributes)
+
+            elif type == COMMENT:
+                yield self.comment(details[0])
+
+            elif type == ENTITY:
+                yield self.entity(details[0])
+
+            elif type == DOCUMENT:
+                hasChildren = True
+
+            else:
+                yield self.unknown(details[0])
+
+            if hasChildren:
+                firstChild = self.getFirstChild(currentNode)
+            else:
+                firstChild = None
+
+            if firstChild is not None:
+                currentNode = firstChild
+            else:
+                while currentNode is not None:
+                    details = self.getNodeDetails(currentNode)
+                    type, details = details[0], details[1:]
+                    if type == ELEMENT:
+                        namespace, name, attributes, hasChildren = details
+                        if (namespace and namespace != namespaces["html"]) or name not in voidElements:
+                            yield self.endTag(namespace, name)
+                    if self.tree is currentNode:
+                        currentNode = None
+                        break
+                    nextSibling = self.getNextSibling(currentNode)
+                    if nextSibling is not None:
+                        currentNode = nextSibling
+                        break
+                    else:
+                        currentNode = self.getParentNode(currentNode)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py
new file mode 100644
index 0000000..b0c89b0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py
@@ -0,0 +1,43 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.dom import Node
+
+from . import base
+
+
+class TreeWalker(base.NonRecursiveTreeWalker):
+    def getNodeDetails(self, node):
+        if node.nodeType == Node.DOCUMENT_TYPE_NODE:
+            return base.DOCTYPE, node.name, node.publicId, node.systemId
+
+        elif node.nodeType in (Node.TEXT_NODE, Node.CDATA_SECTION_NODE):
+            return base.TEXT, node.nodeValue
+
+        elif node.nodeType == Node.ELEMENT_NODE:
+            attrs = {}
+            for attr in list(node.attributes.keys()):
+                attr = node.getAttributeNode(attr)
+                if attr.namespaceURI:
+                    attrs[(attr.namespaceURI, attr.localName)] = attr.value
+                else:
+                    attrs[(None, attr.name)] = attr.value
+            return (base.ELEMENT, node.namespaceURI, node.nodeName,
+                    attrs, node.hasChildNodes())
+
+        elif node.nodeType == Node.COMMENT_NODE:
+            return base.COMMENT, node.nodeValue
+
+        elif node.nodeType in (Node.DOCUMENT_NODE, Node.DOCUMENT_FRAGMENT_NODE):
+            return (base.DOCUMENT,)
+
+        else:
+            return base.UNKNOWN, node.nodeType
+
+    def getFirstChild(self, node):
+        return node.firstChild
+
+    def getNextSibling(self, node):
+        return node.nextSibling
+
+    def getParentNode(self, node):
+        return node.parentNode
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py
new file mode 100644
index 0000000..bcf17d1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py
@@ -0,0 +1,137 @@
+from __future__ import absolute_import, division, unicode_literals
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict
+    except ImportError:
+        OrderedDict = dict
+
+import re
+
+from pip._vendor.six import string_types
+
+from . import base
+from .._utils import moduleFactoryFactory
+
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+
+def getETreeBuilder(ElementTreeImplementation):
+    ElementTree = ElementTreeImplementation
+    ElementTreeCommentType = ElementTree.Comment("asd").tag
+
+    class TreeWalker(base.NonRecursiveTreeWalker):  # pylint:disable=unused-variable
+        """Given the particular ElementTree representation, this implementation,
+        to avoid using recursion, returns "nodes" as tuples with the following
+        content:
+
+        1. The current element
+
+        2. The index of the element relative to its parent
+
+        3. A stack of ancestor elements
+
+        4. A flag "text", "tail" or None to indicate if the current node is a
+           text node; either the text or tail of the current element (1)
+        """
+        def getNodeDetails(self, node):
+            if isinstance(node, tuple):  # It might be the root Element
+                elt, _, _, flag = node
+                if flag in ("text", "tail"):
+                    return base.TEXT, getattr(elt, flag)
+                else:
+                    node = elt
+
+            if not(hasattr(node, "tag")):
+                node = node.getroot()
+
+            if node.tag in ("DOCUMENT_ROOT", "DOCUMENT_FRAGMENT"):
+                return (base.DOCUMENT,)
+
+            elif node.tag == "<!DOCTYPE>":
+                return (base.DOCTYPE, node.text,
+                        node.get("publicId"), node.get("systemId"))
+
+            elif node.tag == ElementTreeCommentType:
+                return base.COMMENT, node.text
+
+            else:
+                assert isinstance(node.tag, string_types), type(node.tag)
+                # This is assumed to be an ordinary element
+                match = tag_regexp.match(node.tag)
+                if match:
+                    namespace, tag = match.groups()
+                else:
+                    namespace = None
+                    tag = node.tag
+                attrs = OrderedDict()
+                for name, value in list(node.attrib.items()):
+                    match = tag_regexp.match(name)
+                    if match:
+                        attrs[(match.group(1), match.group(2))] = value
+                    else:
+                        attrs[(None, name)] = value
+                return (base.ELEMENT, namespace, tag,
+                        attrs, len(node) or node.text)
+
+        def getFirstChild(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                element, key, parents, flag = node, None, [], None
+
+            if flag in ("text", "tail"):
+                return None
+            else:
+                if element.text:
+                    return element, key, parents, "text"
+                elif len(element):
+                    parents.append(element)
+                    return element[0], 0, parents, None
+                else:
+                    return None
+
+        def getNextSibling(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                return None
+
+            if flag == "text":
+                if len(element):
+                    parents.append(element)
+                    return element[0], 0, parents, None
+                else:
+                    return None
+            else:
+                if element.tail and flag != "tail":
+                    return element, key, parents, "tail"
+                elif key < len(parents[-1]) - 1:
+                    return parents[-1][key + 1], key + 1, parents, None
+                else:
+                    return None
+
+        def getParentNode(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                return None
+
+            if flag == "text":
+                if not parents:
+                    return element
+                else:
+                    return element, key, parents, None
+            else:
+                parent = parents.pop()
+                if not parents:
+                    return parent
+                else:
+                    assert list(parents[-1]).count(parent) == 1
+                    return parent, list(parents[-1]).index(parent), parents, None
+
+    return locals()
+
+getETreeModule = moduleFactoryFactory(getETreeBuilder)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py
new file mode 100644
index 0000000..e81ddf3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py
@@ -0,0 +1,213 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from lxml import etree
+from ..treebuilders.etree import tag_regexp
+
+from . import base
+
+from .. import _ihatexml
+
+
+def ensure_str(s):
+    if s is None:
+        return None
+    elif isinstance(s, text_type):
+        return s
+    else:
+        return s.decode("ascii", "strict")
+
+
+class Root(object):
+    def __init__(self, et):
+        self.elementtree = et
+        self.children = []
+
+        try:
+            if et.docinfo.internalDTD:
+                self.children.append(Doctype(self,
+                                             ensure_str(et.docinfo.root_name),
+                                             ensure_str(et.docinfo.public_id),
+                                             ensure_str(et.docinfo.system_url)))
+        except AttributeError:
+            pass
+
+        try:
+            node = et.getroot()
+        except AttributeError:
+            node = et
+
+        while node.getprevious() is not None:
+            node = node.getprevious()
+        while node is not None:
+            self.children.append(node)
+            node = node.getnext()
+
+        self.text = None
+        self.tail = None
+
+    def __getitem__(self, key):
+        return self.children[key]
+
+    def getnext(self):
+        return None
+
+    def __len__(self):
+        return 1
+
+
+class Doctype(object):
+    def __init__(self, root_node, name, public_id, system_id):
+        self.root_node = root_node
+        self.name = name
+        self.public_id = public_id
+        self.system_id = system_id
+
+        self.text = None
+        self.tail = None
+
+    def getnext(self):
+        return self.root_node.children[1]
+
+
+class FragmentRoot(Root):
+    def __init__(self, children):
+        self.children = [FragmentWrapper(self, child) for child in children]
+        self.text = self.tail = None
+
+    def getnext(self):
+        return None
+
+
+class FragmentWrapper(object):
+    def __init__(self, fragment_root, obj):
+        self.root_node = fragment_root
+        self.obj = obj
+        if hasattr(self.obj, 'text'):
+            self.text = ensure_str(self.obj.text)
+        else:
+            self.text = None
+        if hasattr(self.obj, 'tail'):
+            self.tail = ensure_str(self.obj.tail)
+        else:
+            self.tail = None
+
+    def __getattr__(self, name):
+        return getattr(self.obj, name)
+
+    def getnext(self):
+        siblings = self.root_node.children
+        idx = siblings.index(self)
+        if idx < len(siblings) - 1:
+            return siblings[idx + 1]
+        else:
+            return None
+
+    def __getitem__(self, key):
+        return self.obj[key]
+
+    def __bool__(self):
+        return bool(self.obj)
+
+    def getparent(self):
+        return None
+
+    def __str__(self):
+        return str(self.obj)
+
+    def __unicode__(self):
+        return str(self.obj)
+
+    def __len__(self):
+        return len(self.obj)
+
+
+class TreeWalker(base.NonRecursiveTreeWalker):
+    def __init__(self, tree):
+        # pylint:disable=redefined-variable-type
+        if isinstance(tree, list):
+            self.fragmentChildren = set(tree)
+            tree = FragmentRoot(tree)
+        else:
+            self.fragmentChildren = set()
+            tree = Root(tree)
+        base.NonRecursiveTreeWalker.__init__(self, tree)
+        self.filter = _ihatexml.InfosetFilter()
+
+    def getNodeDetails(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            return base.TEXT, ensure_str(getattr(node, key))
+
+        elif isinstance(node, Root):
+            return (base.DOCUMENT,)
+
+        elif isinstance(node, Doctype):
+            return base.DOCTYPE, node.name, node.public_id, node.system_id
+
+        elif isinstance(node, FragmentWrapper) and not hasattr(node, "tag"):
+            return base.TEXT, ensure_str(node.obj)
+
+        elif node.tag == etree.Comment:
+            return base.COMMENT, ensure_str(node.text)
+
+        elif node.tag == etree.Entity:
+            return base.ENTITY, ensure_str(node.text)[1:-1]  # strip &;
+
+        else:
+            # This is assumed to be an ordinary element
+            match = tag_regexp.match(ensure_str(node.tag))
+            if match:
+                namespace, tag = match.groups()
+            else:
+                namespace = None
+                tag = ensure_str(node.tag)
+            attrs = {}
+            for name, value in list(node.attrib.items()):
+                name = ensure_str(name)
+                value = ensure_str(value)
+                match = tag_regexp.match(name)
+                if match:
+                    attrs[(match.group(1), match.group(2))] = value
+                else:
+                    attrs[(None, name)] = value
+            return (base.ELEMENT, namespace, self.filter.fromXmlName(tag),
+                    attrs, len(node) > 0 or node.text)
+
+    def getFirstChild(self, node):
+        assert not isinstance(node, tuple), "Text nodes have no children"
+
+        assert len(node) or node.text, "Node has no children"
+        if node.text:
+            return (node, "text")
+        else:
+            return node[0]
+
+    def getNextSibling(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            if key == "text":
+                # XXX: we cannot use a "bool(node) and node[0] or None" construct here
+                # because node[0] might evaluate to False if it has no child element
+                if len(node):
+                    return node[0]
+                else:
+                    return None
+            else:  # tail
+                return node.getnext()
+
+        return (node, "tail") if node.tail else node.getnext()
+
+    def getParentNode(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            if key == "text":
+                return node
+            # else: fallback to "normal" processing
+        elif node in self.fragmentChildren:
+            return None
+
+        return node.getparent()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py
new file mode 100644
index 0000000..7483be2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py
@@ -0,0 +1,69 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from genshi.core import QName
+from genshi.core import START, END, XML_NAMESPACE, DOCTYPE, TEXT
+from genshi.core import START_NS, END_NS, START_CDATA, END_CDATA, PI, COMMENT
+
+from . import base
+
+from ..constants import voidElements, namespaces
+
+
+class TreeWalker(base.TreeWalker):
+    def __iter__(self):
+        # Buffer the events so we can pass in the following one
+        previous = None
+        for event in self.tree:
+            if previous is not None:
+                for token in self.tokens(previous, event):
+                    yield token
+            previous = event
+
+        # Don't forget the final event!
+        if previous is not None:
+            for token in self.tokens(previous, None):
+                yield token
+
+    def tokens(self, event, next):
+        kind, data, _ = event
+        if kind == START:
+            tag, attribs = data
+            name = tag.localname
+            namespace = tag.namespace
+            converted_attribs = {}
+            for k, v in attribs:
+                if isinstance(k, QName):
+                    converted_attribs[(k.namespace, k.localname)] = v
+                else:
+                    converted_attribs[(None, k)] = v
+
+            if namespace == namespaces["html"] and name in voidElements:
+                for token in self.emptyTag(namespace, name, converted_attribs,
+                                           not next or next[0] != END or
+                                           next[1] != tag):
+                    yield token
+            else:
+                yield self.startTag(namespace, name, converted_attribs)
+
+        elif kind == END:
+            name = data.localname
+            namespace = data.namespace
+            if namespace != namespaces["html"] or name not in voidElements:
+                yield self.endTag(namespace, name)
+
+        elif kind == COMMENT:
+            yield self.comment(data)
+
+        elif kind == TEXT:
+            for token in self.text(data):
+                yield token
+
+        elif kind == DOCTYPE:
+            yield self.doctype(*data)
+
+        elif kind in (XML_NAMESPACE, DOCTYPE, START_NS, END_NS,
+                      START_CDATA, END_CDATA, PI):
+            pass
+
+        else:
+            yield self.unknown(kind)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/ipaddress.py b/venv/lib/python3.5/site-packages/pip/_vendor/ipaddress.py
new file mode 100644
index 0000000..9cf71a7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/ipaddress.py
@@ -0,0 +1,2425 @@
+# Copyright 2007 Google Inc.
+#  Licensed to PSF under a Contributor Agreement.
+
+"""A fast, lightweight IPv4/IPv6 manipulation library in Python.
+
+This library is used to create/poke/manipulate IPv4 and IPv6 addresses
+and networks.
+
+"""
+
+from __future__ import unicode_literals
+
+
+import itertools
+import struct
+
+__version__ = '1.0.17'
+
+# Compatibility functions
+_compat_int_types = (int,)
+try:
+    _compat_int_types = (int, long)
+except NameError:
+    pass
+try:
+    _compat_str = unicode
+except NameError:
+    _compat_str = str
+    assert bytes != str
+if b'\0'[0] == 0:  # Python 3 semantics
+    def _compat_bytes_to_byte_vals(byt):
+        return byt
+else:
+    def _compat_bytes_to_byte_vals(byt):
+        return [struct.unpack(b'!B', b)[0] for b in byt]
+try:
+    _compat_int_from_byte_vals = int.from_bytes
+except AttributeError:
+    def _compat_int_from_byte_vals(bytvals, endianess):
+        assert endianess == 'big'
+        res = 0
+        for bv in bytvals:
+            assert isinstance(bv, _compat_int_types)
+            res = (res << 8) + bv
+        return res
+
+
+def _compat_to_bytes(intval, length, endianess):
+    assert isinstance(intval, _compat_int_types)
+    assert endianess == 'big'
+    if length == 4:
+        if intval < 0 or intval >= 2 ** 32:
+            raise struct.error("integer out of range for 'I' format code")
+        return struct.pack(b'!I', intval)
+    elif length == 16:
+        if intval < 0 or intval >= 2 ** 128:
+            raise struct.error("integer out of range for 'QQ' format code")
+        return struct.pack(b'!QQ', intval >> 64, intval & 0xffffffffffffffff)
+    else:
+        raise NotImplementedError()
+if hasattr(int, 'bit_length'):
+    # Not int.bit_length , since that won't work in 2.7 where long exists
+    def _compat_bit_length(i):
+        return i.bit_length()
+else:
+    def _compat_bit_length(i):
+        for res in itertools.count():
+            if i >> res == 0:
+                return res
+
+
+def _compat_range(start, end, step=1):
+    assert step > 0
+    i = start
+    while i < end:
+        yield i
+        i += step
+
+
+class _TotalOrderingMixin(object):
+    __slots__ = ()
+
+    # Helper that derives the other comparison operations from
+    # __lt__ and __eq__
+    # We avoid functools.total_ordering because it doesn't handle
+    # NotImplemented correctly yet (http://bugs.python.org/issue10042)
+    def __eq__(self, other):
+        raise NotImplementedError
+
+    def __ne__(self, other):
+        equal = self.__eq__(other)
+        if equal is NotImplemented:
+            return NotImplemented
+        return not equal
+
+    def __lt__(self, other):
+        raise NotImplementedError
+
+    def __le__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented or not less:
+            return self.__eq__(other)
+        return less
+
+    def __gt__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented:
+            return NotImplemented
+        equal = self.__eq__(other)
+        if equal is NotImplemented:
+            return NotImplemented
+        return not (less or equal)
+
+    def __ge__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented:
+            return NotImplemented
+        return not less
+
+
+IPV4LENGTH = 32
+IPV6LENGTH = 128
+
+
+class AddressValueError(ValueError):
+    """A Value Error related to the address."""
+
+
+class NetmaskValueError(ValueError):
+    """A Value Error related to the netmask."""
+
+
+def ip_address(address):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP address.  Either IPv4 or
+          IPv6 addresses may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Address or IPv6Address object.
+
+    Raises:
+        ValueError: if the *address* passed isn't either a v4 or a v6
+          address
+
+    """
+    try:
+        return IPv4Address(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Address(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    if isinstance(address, bytes):
+        raise AddressValueError(
+            '%r does not appear to be an IPv4 or IPv6 address. '
+            'Did you pass in a bytes (str in Python 2) instead of'
+            ' a unicode object?' % address)
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 address' %
+                     address)
+
+
+def ip_network(address, strict=True):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP network.  Either IPv4 or
+          IPv6 networks may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Network or IPv6Network object.
+
+    Raises:
+        ValueError: if the string passed isn't either a v4 or a v6
+          address. Or if the network has host bits set.
+
+    """
+    try:
+        return IPv4Network(address, strict)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Network(address, strict)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    if isinstance(address, bytes):
+        raise AddressValueError(
+            '%r does not appear to be an IPv4 or IPv6 network. '
+            'Did you pass in a bytes (str in Python 2) instead of'
+            ' a unicode object?' % address)
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 network' %
+                     address)
+
+
+def ip_interface(address):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP address.  Either IPv4 or
+          IPv6 addresses may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Interface or IPv6Interface object.
+
+    Raises:
+        ValueError: if the string passed isn't either a v4 or a v6
+          address.
+
+    Notes:
+        The IPv?Interface classes describe an Address on a particular
+        Network, so they're basically a combination of both the Address
+        and Network classes.
+
+    """
+    try:
+        return IPv4Interface(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Interface(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 interface' %
+                     address)
+
+
+def v4_int_to_packed(address):
+    """Represent an address as 4 packed bytes in network (big-endian) order.
+
+    Args:
+        address: An integer representation of an IPv4 IP address.
+
+    Returns:
+        The integer address packed as 4 bytes in network (big-endian) order.
+
+    Raises:
+        ValueError: If the integer is negative or too large to be an
+          IPv4 IP address.
+
+    """
+    try:
+        return _compat_to_bytes(address, 4, 'big')
+    except (struct.error, OverflowError):
+        raise ValueError("Address negative or too large for IPv4")
+
+
+def v6_int_to_packed(address):
+    """Represent an address as 16 packed bytes in network (big-endian) order.
+
+    Args:
+        address: An integer representation of an IPv6 IP address.
+
+    Returns:
+        The integer address packed as 16 bytes in network (big-endian) order.
+
+    """
+    try:
+        return _compat_to_bytes(address, 16, 'big')
+    except (struct.error, OverflowError):
+        raise ValueError("Address negative or too large for IPv6")
+
+
+def _split_optional_netmask(address):
+    """Helper to split the netmask and raise AddressValueError if needed"""
+    addr = _compat_str(address).split('/')
+    if len(addr) > 2:
+        raise AddressValueError("Only one '/' permitted in %r" % address)
+    return addr
+
+
+def _find_address_range(addresses):
+    """Find a sequence of sorted deduplicated IPv#Address.
+
+    Args:
+        addresses: a list of IPv#Address objects.
+
+    Yields:
+        A tuple containing the first and last IP addresses in the sequence.
+
+    """
+    it = iter(addresses)
+    first = last = next(it)
+    for ip in it:
+        if ip._ip != last._ip + 1:
+            yield first, last
+            first = ip
+        last = ip
+    yield first, last
+
+
+def _count_righthand_zero_bits(number, bits):
+    """Count the number of zero bits on the right hand side.
+
+    Args:
+        number: an integer.
+        bits: maximum number of bits to count.
+
+    Returns:
+        The number of zero bits on the right hand side of the number.
+
+    """
+    if number == 0:
+        return bits
+    return min(bits, _compat_bit_length(~number & (number - 1)))
+
+
+def summarize_address_range(first, last):
+    """Summarize a network range given the first and last IP addresses.
+
+    Example:
+        >>> list(summarize_address_range(IPv4Address('192.0.2.0'),
+        ...                              IPv4Address('192.0.2.130')))
+        ...                                #doctest: +NORMALIZE_WHITESPACE
+        [IPv4Network('192.0.2.0/25'), IPv4Network('192.0.2.128/31'),
+         IPv4Network('192.0.2.130/32')]
+
+    Args:
+        first: the first IPv4Address or IPv6Address in the range.
+        last: the last IPv4Address or IPv6Address in the range.
+
+    Returns:
+        An iterator of the summarized IPv(4|6) network objects.
+
+    Raise:
+        TypeError:
+            If the first and last objects are not IP addresses.
+            If the first and last objects are not the same version.
+        ValueError:
+            If the last object is not greater than the first.
+            If the version of the first address is not 4 or 6.
+
+    """
+    if (not (isinstance(first, _BaseAddress) and
+             isinstance(last, _BaseAddress))):
+        raise TypeError('first and last must be IP addresses, not networks')
+    if first.version != last.version:
+        raise TypeError("%s and %s are not of the same version" % (
+                        first, last))
+    if first > last:
+        raise ValueError('last IP address must be greater than first')
+
+    if first.version == 4:
+        ip = IPv4Network
+    elif first.version == 6:
+        ip = IPv6Network
+    else:
+        raise ValueError('unknown IP version')
+
+    ip_bits = first._max_prefixlen
+    first_int = first._ip
+    last_int = last._ip
+    while first_int <= last_int:
+        nbits = min(_count_righthand_zero_bits(first_int, ip_bits),
+                    _compat_bit_length(last_int - first_int + 1) - 1)
+        net = ip((first_int, ip_bits - nbits))
+        yield net
+        first_int += 1 << nbits
+        if first_int - 1 == ip._ALL_ONES:
+            break
+
+
+def _collapse_addresses_internal(addresses):
+    """Loops through the addresses, collapsing concurrent netblocks.
+
+    Example:
+
+        ip1 = IPv4Network('192.0.2.0/26')
+        ip2 = IPv4Network('192.0.2.64/26')
+        ip3 = IPv4Network('192.0.2.128/26')
+        ip4 = IPv4Network('192.0.2.192/26')
+
+        _collapse_addresses_internal([ip1, ip2, ip3, ip4]) ->
+          [IPv4Network('192.0.2.0/24')]
+
+        This shouldn't be called directly; it is called via
+          collapse_addresses([]).
+
+    Args:
+        addresses: A list of IPv4Network's or IPv6Network's
+
+    Returns:
+        A list of IPv4Network's or IPv6Network's depending on what we were
+        passed.
+
+    """
+    # First merge
+    to_merge = list(addresses)
+    subnets = {}
+    while to_merge:
+        net = to_merge.pop()
+        supernet = net.supernet()
+        existing = subnets.get(supernet)
+        if existing is None:
+            subnets[supernet] = net
+        elif existing != net:
+            # Merge consecutive subnets
+            del subnets[supernet]
+            to_merge.append(supernet)
+    # Then iterate over resulting networks, skipping subsumed subnets
+    last = None
+    for net in sorted(subnets.values()):
+        if last is not None:
+            # Since they are sorted,
+            # last.network_address <= net.network_address is a given.
+            if last.broadcast_address >= net.broadcast_address:
+                continue
+        yield net
+        last = net
+
+
+def collapse_addresses(addresses):
+    """Collapse a list of IP objects.
+
+    Example:
+        collapse_addresses([IPv4Network('192.0.2.0/25'),
+                            IPv4Network('192.0.2.128/25')]) ->
+                           [IPv4Network('192.0.2.0/24')]
+
+    Args:
+        addresses: An iterator of IPv4Network or IPv6Network objects.
+
+    Returns:
+        An iterator of the collapsed IPv(4|6)Network objects.
+
+    Raises:
+        TypeError: If passed a list of mixed version objects.
+
+    """
+    addrs = []
+    ips = []
+    nets = []
+
+    # split IP addresses and networks
+    for ip in addresses:
+        if isinstance(ip, _BaseAddress):
+            if ips and ips[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, ips[-1]))
+            ips.append(ip)
+        elif ip._prefixlen == ip._max_prefixlen:
+            if ips and ips[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, ips[-1]))
+            try:
+                ips.append(ip.ip)
+            except AttributeError:
+                ips.append(ip.network_address)
+        else:
+            if nets and nets[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, nets[-1]))
+            nets.append(ip)
+
+    # sort and dedup
+    ips = sorted(set(ips))
+
+    # find consecutive address ranges in the sorted sequence and summarize them
+    if ips:
+        for first, last in _find_address_range(ips):
+            addrs.extend(summarize_address_range(first, last))
+
+    return _collapse_addresses_internal(addrs + nets)
+
+
+def get_mixed_type_key(obj):
+    """Return a key suitable for sorting between networks and addresses.
+
+    Address and Network objects are not sortable by default; they're
+    fundamentally different so the expression
+
+        IPv4Address('192.0.2.0') <= IPv4Network('192.0.2.0/24')
+
+    doesn't make any sense.  There are some times however, where you may wish
+    to have ipaddress sort these for you anyway. If you need to do this, you
+    can use this function as the key= argument to sorted().
+
+    Args:
+      obj: either a Network or Address object.
+    Returns:
+      appropriate key.
+
+    """
+    if isinstance(obj, _BaseNetwork):
+        return obj._get_networks_key()
+    elif isinstance(obj, _BaseAddress):
+        return obj._get_address_key()
+    return NotImplemented
+
+
+class _IPAddressBase(_TotalOrderingMixin):
+
+    """The mother class."""
+
+    __slots__ = ()
+
+    @property
+    def exploded(self):
+        """Return the longhand version of the IP address as a string."""
+        return self._explode_shorthand_ip_string()
+
+    @property
+    def compressed(self):
+        """Return the shorthand version of the IP address as a string."""
+        return _compat_str(self)
+
+    @property
+    def reverse_pointer(self):
+        """The name of the reverse DNS pointer for the IP address, e.g.:
+            >>> ipaddress.ip_address("127.0.0.1").reverse_pointer
+            '1.0.0.127.in-addr.arpa'
+            >>> ipaddress.ip_address("2001:db8::1").reverse_pointer
+            '1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa'
+
+        """
+        return self._reverse_pointer()
+
+    @property
+    def version(self):
+        msg = '%200s has no version specified' % (type(self),)
+        raise NotImplementedError(msg)
+
+    def _check_int_address(self, address):
+        if address < 0:
+            msg = "%d (< 0) is not permitted as an IPv%d address"
+            raise AddressValueError(msg % (address, self._version))
+        if address > self._ALL_ONES:
+            msg = "%d (>= 2**%d) is not permitted as an IPv%d address"
+            raise AddressValueError(msg % (address, self._max_prefixlen,
+                                           self._version))
+
+    def _check_packed_address(self, address, expected_len):
+        address_len = len(address)
+        if address_len != expected_len:
+            msg = (
+                '%r (len %d != %d) is not permitted as an IPv%d address. '
+                'Did you pass in a bytes (str in Python 2) instead of'
+                ' a unicode object?'
+            )
+            raise AddressValueError(msg % (address, address_len,
+                                           expected_len, self._version))
+
+    @classmethod
+    def _ip_int_from_prefix(cls, prefixlen):
+        """Turn the prefix length into a bitwise netmask
+
+        Args:
+            prefixlen: An integer, the prefix length.
+
+        Returns:
+            An integer.
+
+        """
+        return cls._ALL_ONES ^ (cls._ALL_ONES >> prefixlen)
+
+    @classmethod
+    def _prefix_from_ip_int(cls, ip_int):
+        """Return prefix length from the bitwise netmask.
+
+        Args:
+            ip_int: An integer, the netmask in expanded bitwise format
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            ValueError: If the input intermingles zeroes & ones
+        """
+        trailing_zeroes = _count_righthand_zero_bits(ip_int,
+                                                     cls._max_prefixlen)
+        prefixlen = cls._max_prefixlen - trailing_zeroes
+        leading_ones = ip_int >> trailing_zeroes
+        all_ones = (1 << prefixlen) - 1
+        if leading_ones != all_ones:
+            byteslen = cls._max_prefixlen // 8
+            details = _compat_to_bytes(ip_int, byteslen, 'big')
+            msg = 'Netmask pattern %r mixes zeroes & ones'
+            raise ValueError(msg % details)
+        return prefixlen
+
+    @classmethod
+    def _report_invalid_netmask(cls, netmask_str):
+        msg = '%r is not a valid netmask' % netmask_str
+        raise NetmaskValueError(msg)
+
+    @classmethod
+    def _prefix_from_prefix_string(cls, prefixlen_str):
+        """Return prefix length from a numeric string
+
+        Args:
+            prefixlen_str: The string to be converted
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            NetmaskValueError: If the input is not a valid netmask
+        """
+        # int allows a leading +/- as well as surrounding whitespace,
+        # so we ensure that isn't the case
+        if not _BaseV4._DECIMAL_DIGITS.issuperset(prefixlen_str):
+            cls._report_invalid_netmask(prefixlen_str)
+        try:
+            prefixlen = int(prefixlen_str)
+        except ValueError:
+            cls._report_invalid_netmask(prefixlen_str)
+        if not (0 <= prefixlen <= cls._max_prefixlen):
+            cls._report_invalid_netmask(prefixlen_str)
+        return prefixlen
+
+    @classmethod
+    def _prefix_from_ip_string(cls, ip_str):
+        """Turn a netmask/hostmask string into a prefix length
+
+        Args:
+            ip_str: The netmask/hostmask to be converted
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            NetmaskValueError: If the input is not a valid netmask/hostmask
+        """
+        # Parse the netmask/hostmask like an IP address.
+        try:
+            ip_int = cls._ip_int_from_string(ip_str)
+        except AddressValueError:
+            cls._report_invalid_netmask(ip_str)
+
+        # Try matching a netmask (this would be /1*0*/ as a bitwise regexp).
+        # Note that the two ambiguous cases (all-ones and all-zeroes) are
+        # treated as netmasks.
+        try:
+            return cls._prefix_from_ip_int(ip_int)
+        except ValueError:
+            pass
+
+        # Invert the bits, and try matching a /0+1+/ hostmask instead.
+        ip_int ^= cls._ALL_ONES
+        try:
+            return cls._prefix_from_ip_int(ip_int)
+        except ValueError:
+            cls._report_invalid_netmask(ip_str)
+
+    def __reduce__(self):
+        return self.__class__, (_compat_str(self),)
+
+
+class _BaseAddress(_IPAddressBase):
+
+    """A generic IP object.
+
+    This IP class contains the version independent methods which are
+    used by single IP addresses.
+    """
+
+    __slots__ = ()
+
+    def __int__(self):
+        return self._ip
+
+    def __eq__(self, other):
+        try:
+            return (self._ip == other._ip and
+                    self._version == other._version)
+        except AttributeError:
+            return NotImplemented
+
+    def __lt__(self, other):
+        if not isinstance(other, _IPAddressBase):
+            return NotImplemented
+        if not isinstance(other, _BaseAddress):
+            raise TypeError('%s and %s are not of the same type' % (
+                self, other))
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same version' % (
+                self, other))
+        if self._ip != other._ip:
+            return self._ip < other._ip
+        return False
+
+    # Shorthand for Integer addition and subtraction. This is not
+    # meant to ever support addition/subtraction of addresses.
+    def __add__(self, other):
+        if not isinstance(other, _compat_int_types):
+            return NotImplemented
+        return self.__class__(int(self) + other)
+
+    def __sub__(self, other):
+        if not isinstance(other, _compat_int_types):
+            return NotImplemented
+        return self.__class__(int(self) - other)
+
+    def __repr__(self):
+        return '%s(%r)' % (self.__class__.__name__, _compat_str(self))
+
+    def __str__(self):
+        return _compat_str(self._string_from_ip_int(self._ip))
+
+    def __hash__(self):
+        return hash(hex(int(self._ip)))
+
+    def _get_address_key(self):
+        return (self._version, self)
+
+    def __reduce__(self):
+        return self.__class__, (self._ip,)
+
+
+class _BaseNetwork(_IPAddressBase):
+
+    """A generic IP network object.
+
+    This IP class contains the version independent methods which are
+    used by networks.
+
+    """
+    def __init__(self, address):
+        self._cache = {}
+
+    def __repr__(self):
+        return '%s(%r)' % (self.__class__.__name__, _compat_str(self))
+
+    def __str__(self):
+        return '%s/%d' % (self.network_address, self.prefixlen)
+
+    def hosts(self):
+        """Generate Iterator over usable hosts in a network.
+
+        This is like __iter__ except it doesn't return the network
+        or broadcast addresses.
+
+        """
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network + 1, broadcast):
+            yield self._address_class(x)
+
+    def __iter__(self):
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network, broadcast + 1):
+            yield self._address_class(x)
+
+    def __getitem__(self, n):
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        if n >= 0:
+            if network + n > broadcast:
+                raise IndexError('address out of range')
+            return self._address_class(network + n)
+        else:
+            n += 1
+            if broadcast + n < network:
+                raise IndexError('address out of range')
+            return self._address_class(broadcast + n)
+
+    def __lt__(self, other):
+        if not isinstance(other, _IPAddressBase):
+            return NotImplemented
+        if not isinstance(other, _BaseNetwork):
+            raise TypeError('%s and %s are not of the same type' % (
+                            self, other))
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same version' % (
+                            self, other))
+        if self.network_address != other.network_address:
+            return self.network_address < other.network_address
+        if self.netmask != other.netmask:
+            return self.netmask < other.netmask
+        return False
+
+    def __eq__(self, other):
+        try:
+            return (self._version == other._version and
+                    self.network_address == other.network_address and
+                    int(self.netmask) == int(other.netmask))
+        except AttributeError:
+            return NotImplemented
+
+    def __hash__(self):
+        return hash(int(self.network_address) ^ int(self.netmask))
+
+    def __contains__(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if isinstance(other, _BaseNetwork):
+            return False
+        # dealing with another address
+        else:
+            # address
+            return (int(self.network_address) <= int(other._ip) <=
+                    int(self.broadcast_address))
+
+    def overlaps(self, other):
+        """Tell if self is partly contained in other."""
+        return self.network_address in other or (
+            self.broadcast_address in other or (
+                other.network_address in self or (
+                    other.broadcast_address in self)))
+
+    @property
+    def broadcast_address(self):
+        x = self._cache.get('broadcast_address')
+        if x is None:
+            x = self._address_class(int(self.network_address) |
+                                    int(self.hostmask))
+            self._cache['broadcast_address'] = x
+        return x
+
+    @property
+    def hostmask(self):
+        x = self._cache.get('hostmask')
+        if x is None:
+            x = self._address_class(int(self.netmask) ^ self._ALL_ONES)
+            self._cache['hostmask'] = x
+        return x
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%d' % (self.network_address, self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self.network_address, self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self.network_address, self.hostmask)
+
+    @property
+    def num_addresses(self):
+        """Number of hosts in the current subnet."""
+        return int(self.broadcast_address) - int(self.network_address) + 1
+
+    @property
+    def _address_class(self):
+        # Returning bare address objects (rather than interfaces) allows for
+        # more consistent behaviour across the network address, broadcast
+        # address and individual host addresses.
+        msg = '%200s has no associated address class' % (type(self),)
+        raise NotImplementedError(msg)
+
+    @property
+    def prefixlen(self):
+        return self._prefixlen
+
+    def address_exclude(self, other):
+        """Remove an address from a larger block.
+
+        For example:
+
+            addr1 = ip_network('192.0.2.0/28')
+            addr2 = ip_network('192.0.2.1/32')
+            list(addr1.address_exclude(addr2)) =
+                [IPv4Network('192.0.2.0/32'), IPv4Network('192.0.2.2/31'),
+                 IPv4Network('192.0.2.4/30'), IPv4Network('192.0.2.8/29')]
+
+        or IPv6:
+
+            addr1 = ip_network('2001:db8::1/32')
+            addr2 = ip_network('2001:db8::1/128')
+            list(addr1.address_exclude(addr2)) =
+                [ip_network('2001:db8::1/128'),
+                 ip_network('2001:db8::2/127'),
+                 ip_network('2001:db8::4/126'),
+                 ip_network('2001:db8::8/125'),
+                 ...
+                 ip_network('2001:db8:8000::/33')]
+
+        Args:
+            other: An IPv4Network or IPv6Network object of the same type.
+
+        Returns:
+            An iterator of the IPv(4|6)Network objects which is self
+            minus other.
+
+        Raises:
+            TypeError: If self and other are of differing address
+              versions, or if other is not a network object.
+            ValueError: If other is not completely contained by self.
+
+        """
+        if not self._version == other._version:
+            raise TypeError("%s and %s are not of the same version" % (
+                            self, other))
+
+        if not isinstance(other, _BaseNetwork):
+            raise TypeError("%s is not a network object" % other)
+
+        if not other.subnet_of(self):
+            raise ValueError('%s not contained in %s' % (other, self))
+        if other == self:
+            return
+
+        # Make sure we're comparing the network of other.
+        other = other.__class__('%s/%s' % (other.network_address,
+                                           other.prefixlen))
+
+        s1, s2 = self.subnets()
+        while s1 != other and s2 != other:
+            if other.subnet_of(s1):
+                yield s2
+                s1, s2 = s1.subnets()
+            elif other.subnet_of(s2):
+                yield s1
+                s1, s2 = s2.subnets()
+            else:
+                # If we got here, there's a bug somewhere.
+                raise AssertionError('Error performing exclusion: '
+                                     's1: %s s2: %s other: %s' %
+                                     (s1, s2, other))
+        if s1 == other:
+            yield s2
+        elif s2 == other:
+            yield s1
+        else:
+            # If we got here, there's a bug somewhere.
+            raise AssertionError('Error performing exclusion: '
+                                 's1: %s s2: %s other: %s' %
+                                 (s1, s2, other))
+
+    def compare_networks(self, other):
+        """Compare two IP objects.
+
+        This is only concerned about the comparison of the integer
+        representation of the network addresses.  This means that the
+        host bits aren't considered at all in this method.  If you want
+        to compare host bits, you can easily enough do a
+        'HostA._ip < HostB._ip'
+
+        Args:
+            other: An IP object.
+
+        Returns:
+            If the IP versions of self and other are the same, returns:
+
+            -1 if self < other:
+              eg: IPv4Network('192.0.2.0/25') < IPv4Network('192.0.2.128/25')
+              IPv6Network('2001:db8::1000/124') <
+                  IPv6Network('2001:db8::2000/124')
+            0 if self == other
+              eg: IPv4Network('192.0.2.0/24') == IPv4Network('192.0.2.0/24')
+              IPv6Network('2001:db8::1000/124') ==
+                  IPv6Network('2001:db8::1000/124')
+            1 if self > other
+              eg: IPv4Network('192.0.2.128/25') > IPv4Network('192.0.2.0/25')
+                  IPv6Network('2001:db8::2000/124') >
+                      IPv6Network('2001:db8::1000/124')
+
+          Raises:
+              TypeError if the IP versions are different.
+
+        """
+        # does this need to raise a ValueError?
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same type' % (
+                            self, other))
+        # self._version == other._version below here:
+        if self.network_address < other.network_address:
+            return -1
+        if self.network_address > other.network_address:
+            return 1
+        # self.network_address == other.network_address below here:
+        if self.netmask < other.netmask:
+            return -1
+        if self.netmask > other.netmask:
+            return 1
+        return 0
+
+    def _get_networks_key(self):
+        """Network-only key function.
+
+        Returns an object that identifies this address' network and
+        netmask. This function is a suitable "key" argument for sorted()
+        and list.sort().
+
+        """
+        return (self._version, self.network_address, self.netmask)
+
+    def subnets(self, prefixlen_diff=1, new_prefix=None):
+        """The subnets which join to make the current subnet.
+
+        In the case that self contains only one IP
+        (self._prefixlen == 32 for IPv4 or self._prefixlen == 128
+        for IPv6), yield an iterator with just ourself.
+
+        Args:
+            prefixlen_diff: An integer, the amount the prefix length
+              should be increased by. This should not be set if
+              new_prefix is also set.
+            new_prefix: The desired new prefix length. This must be a
+              larger number (smaller prefix) than the existing prefix.
+              This should not be set if prefixlen_diff is also set.
+
+        Returns:
+            An iterator of IPv(4|6) objects.
+
+        Raises:
+            ValueError: The prefixlen_diff is too small or too large.
+                OR
+            prefixlen_diff and new_prefix are both set or new_prefix
+              is a smaller number than the current prefix (smaller
+              number means a larger network)
+
+        """
+        if self._prefixlen == self._max_prefixlen:
+            yield self
+            return
+
+        if new_prefix is not None:
+            if new_prefix < self._prefixlen:
+                raise ValueError('new prefix must be longer')
+            if prefixlen_diff != 1:
+                raise ValueError('cannot set prefixlen_diff and new_prefix')
+            prefixlen_diff = new_prefix - self._prefixlen
+
+        if prefixlen_diff < 0:
+            raise ValueError('prefix length diff must be > 0')
+        new_prefixlen = self._prefixlen + prefixlen_diff
+
+        if new_prefixlen > self._max_prefixlen:
+            raise ValueError(
+                'prefix length diff %d is invalid for netblock %s' % (
+                    new_prefixlen, self))
+
+        start = int(self.network_address)
+        end = int(self.broadcast_address) + 1
+        step = (int(self.hostmask) + 1) >> prefixlen_diff
+        for new_addr in _compat_range(start, end, step):
+            current = self.__class__((new_addr, new_prefixlen))
+            yield current
+
+    def supernet(self, prefixlen_diff=1, new_prefix=None):
+        """The supernet containing the current network.
+
+        Args:
+            prefixlen_diff: An integer, the amount the prefix length of
+              the network should be decreased by.  For example, given a
+              /24 network and a prefixlen_diff of 3, a supernet with a
+              /21 netmask is returned.
+
+        Returns:
+            An IPv4 network object.
+
+        Raises:
+            ValueError: If self.prefixlen - prefixlen_diff < 0. I.e., you have
+              a negative prefix length.
+                OR
+            If prefixlen_diff and new_prefix are both set or new_prefix is a
+              larger number than the current prefix (larger number means a
+              smaller network)
+
+        """
+        if self._prefixlen == 0:
+            return self
+
+        if new_prefix is not None:
+            if new_prefix > self._prefixlen:
+                raise ValueError('new prefix must be shorter')
+            if prefixlen_diff != 1:
+                raise ValueError('cannot set prefixlen_diff and new_prefix')
+            prefixlen_diff = self._prefixlen - new_prefix
+
+        new_prefixlen = self.prefixlen - prefixlen_diff
+        if new_prefixlen < 0:
+            raise ValueError(
+                'current prefixlen is %d, cannot have a prefixlen_diff of %d' %
+                (self.prefixlen, prefixlen_diff))
+        return self.__class__((
+            int(self.network_address) & (int(self.netmask) << prefixlen_diff),
+            new_prefixlen
+        ))
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is a multicast address.
+            See RFC 2373 2.7 for details.
+
+        """
+        return (self.network_address.is_multicast and
+                self.broadcast_address.is_multicast)
+
+    def subnet_of(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if (hasattr(other, 'network_address') and
+                hasattr(other, 'broadcast_address')):
+            return (other.network_address <= self.network_address and
+                    other.broadcast_address >= self.broadcast_address)
+        # dealing with another address
+        else:
+            raise TypeError('Unable to test subnet containment with element '
+                            'of type %s' % type(other))
+
+    def supernet_of(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if (hasattr(other, 'network_address') and
+                hasattr(other, 'broadcast_address')):
+            return (other.network_address >= self.network_address and
+                    other.broadcast_address <= self.broadcast_address)
+        # dealing with another address
+        else:
+            raise TypeError('Unable to test subnet containment with element '
+                            'of type %s' % type(other))
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+        Returns:
+            A boolean, True if the address is within one of the
+            reserved IPv6 Network ranges.
+
+        """
+        return (self.network_address.is_reserved and
+                self.broadcast_address.is_reserved)
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 4291.
+
+        """
+        return (self.network_address.is_link_local and
+                self.broadcast_address.is_link_local)
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv4-special-registry or iana-ipv6-special-registry.
+
+        """
+        return (self.network_address.is_private and
+                self.broadcast_address.is_private)
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, True if the address is not reserved per
+            iana-ipv4-special-registry or iana-ipv6-special-registry.
+
+        """
+        return not self.is_private
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 2373 2.5.2.
+
+        """
+        return (self.network_address.is_unspecified and
+                self.broadcast_address.is_unspecified)
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback address as defined in
+            RFC 2373 2.5.3.
+
+        """
+        return (self.network_address.is_loopback and
+                self.broadcast_address.is_loopback)
+
+
+class _BaseV4(object):
+
+    """Base IPv4 object.
+
+    The following methods are used by IPv4 objects in both single IP
+    addresses and networks.
+
+    """
+
+    __slots__ = ()
+    _version = 4
+    # Equivalent to 255.255.255.255 or 32 bits of 1's.
+    _ALL_ONES = (2 ** IPV4LENGTH) - 1
+    _DECIMAL_DIGITS = frozenset('0123456789')
+
+    # the valid octets for host and netmasks. only useful for IPv4.
+    _valid_mask_octets = frozenset([255, 254, 252, 248, 240, 224, 192, 128, 0])
+
+    _max_prefixlen = IPV4LENGTH
+    # There are only a handful of valid v4 netmasks, so we cache them all
+    # when constructed (see _make_netmask()).
+    _netmask_cache = {}
+
+    def _explode_shorthand_ip_string(self):
+        return _compat_str(self)
+
+    @classmethod
+    def _make_netmask(cls, arg):
+        """Make a (netmask, prefix_len) tuple from the given argument.
+
+        Argument can be:
+        - an integer (the prefix length)
+        - a string representing the prefix length (e.g. "24")
+        - a string representing the prefix netmask (e.g. "255.255.255.0")
+        """
+        if arg not in cls._netmask_cache:
+            if isinstance(arg, _compat_int_types):
+                prefixlen = arg
+            else:
+                try:
+                    # Check for a netmask in prefix length form
+                    prefixlen = cls._prefix_from_prefix_string(arg)
+                except NetmaskValueError:
+                    # Check for a netmask or hostmask in dotted-quad form.
+                    # This may raise NetmaskValueError.
+                    prefixlen = cls._prefix_from_ip_string(arg)
+            netmask = IPv4Address(cls._ip_int_from_prefix(prefixlen))
+            cls._netmask_cache[arg] = netmask, prefixlen
+        return cls._netmask_cache[arg]
+
+    @classmethod
+    def _ip_int_from_string(cls, ip_str):
+        """Turn the given IP string into an integer for comparison.
+
+        Args:
+            ip_str: A string, the IP ip_str.
+
+        Returns:
+            The IP ip_str as an integer.
+
+        Raises:
+            AddressValueError: if ip_str isn't a valid IPv4 Address.
+
+        """
+        if not ip_str:
+            raise AddressValueError('Address cannot be empty')
+
+        octets = ip_str.split('.')
+        if len(octets) != 4:
+            raise AddressValueError("Expected 4 octets in %r" % ip_str)
+
+        try:
+            return _compat_int_from_byte_vals(
+                map(cls._parse_octet, octets), 'big')
+        except ValueError as exc:
+            raise AddressValueError("%s in %r" % (exc, ip_str))
+
+    @classmethod
+    def _parse_octet(cls, octet_str):
+        """Convert a decimal octet into an integer.
+
+        Args:
+            octet_str: A string, the number to parse.
+
+        Returns:
+            The octet as an integer.
+
+        Raises:
+            ValueError: if the octet isn't strictly a decimal from [0..255].
+
+        """
+        if not octet_str:
+            raise ValueError("Empty octet not permitted")
+        # Whitelist the characters, since int() allows a lot of bizarre stuff.
+        if not cls._DECIMAL_DIGITS.issuperset(octet_str):
+            msg = "Only decimal digits permitted in %r"
+            raise ValueError(msg % octet_str)
+        # We do the length check second, since the invalid character error
+        # is likely to be more informative for the user
+        if len(octet_str) > 3:
+            msg = "At most 3 characters permitted in %r"
+            raise ValueError(msg % octet_str)
+        # Convert to integer (we know digits are legal)
+        octet_int = int(octet_str, 10)
+        # Any octets that look like they *might* be written in octal,
+        # and which don't look exactly the same in both octal and
+        # decimal are rejected as ambiguous
+        if octet_int > 7 and octet_str[0] == '0':
+            msg = "Ambiguous (octal/decimal) value in %r not permitted"
+            raise ValueError(msg % octet_str)
+        if octet_int > 255:
+            raise ValueError("Octet %d (> 255) not permitted" % octet_int)
+        return octet_int
+
+    @classmethod
+    def _string_from_ip_int(cls, ip_int):
+        """Turns a 32-bit integer into dotted decimal notation.
+
+        Args:
+            ip_int: An integer, the IP address.
+
+        Returns:
+            The IP address as a string in dotted decimal notation.
+
+        """
+        return '.'.join(_compat_str(struct.unpack(b'!B', b)[0]
+                                    if isinstance(b, bytes)
+                                    else b)
+                        for b in _compat_to_bytes(ip_int, 4, 'big'))
+
+    def _is_hostmask(self, ip_str):
+        """Test if the IP string is a hostmask (rather than a netmask).
+
+        Args:
+            ip_str: A string, the potential hostmask.
+
+        Returns:
+            A boolean, True if the IP string is a hostmask.
+
+        """
+        bits = ip_str.split('.')
+        try:
+            parts = [x for x in map(int, bits) if x in self._valid_mask_octets]
+        except ValueError:
+            return False
+        if len(parts) != len(bits):
+            return False
+        if parts[0] < parts[-1]:
+            return True
+        return False
+
+    def _reverse_pointer(self):
+        """Return the reverse DNS pointer name for the IPv4 address.
+
+        This implements the method described in RFC1035 3.5.
+
+        """
+        reverse_octets = _compat_str(self).split('.')[::-1]
+        return '.'.join(reverse_octets) + '.in-addr.arpa'
+
+    @property
+    def max_prefixlen(self):
+        return self._max_prefixlen
+
+    @property
+    def version(self):
+        return self._version
+
+
+class IPv4Address(_BaseV4, _BaseAddress):
+
+    """Represent and manipulate single IPv4 Addresses."""
+
+    __slots__ = ('_ip', '__weakref__')
+
+    def __init__(self, address):
+
+        """
+        Args:
+            address: A string or integer representing the IP
+
+              Additionally, an integer can be passed, so
+              IPv4Address('192.0.2.1') == IPv4Address(3221225985).
+              or, more generally
+              IPv4Address(int(IPv4Address('192.0.2.1'))) ==
+                IPv4Address('192.0.2.1')
+
+        Raises:
+            AddressValueError: If ipaddress isn't a valid IPv4 address.
+
+        """
+        # Efficient constructor from integer.
+        if isinstance(address, _compat_int_types):
+            self._check_int_address(address)
+            self._ip = address
+            return
+
+        # Constructing from a packed address
+        if isinstance(address, bytes):
+            self._check_packed_address(address, 4)
+            bvs = _compat_bytes_to_byte_vals(address)
+            self._ip = _compat_int_from_byte_vals(bvs, 'big')
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP string.
+        addr_str = _compat_str(address)
+        if '/' in addr_str:
+            raise AddressValueError("Unexpected '/' in %r" % address)
+        self._ip = self._ip_int_from_string(addr_str)
+
+    @property
+    def packed(self):
+        """The binary representation of this address."""
+        return v4_int_to_packed(self._ip)
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+         Returns:
+             A boolean, True if the address is within the
+             reserved IPv4 Network range.
+
+        """
+        return self in self._constants._reserved_network
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv4-special-registry.
+
+        """
+        return any(self in net for net in self._constants._private_networks)
+
+    @property
+    def is_global(self):
+        return (
+            self not in self._constants._public_network and
+            not self.is_private)
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is multicast.
+            See RFC 3171 for details.
+
+        """
+        return self in self._constants._multicast_network
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 5735 3.
+
+        """
+        return self == self._constants._unspecified_address
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback per RFC 3330.
+
+        """
+        return self in self._constants._loopback_network
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is link-local per RFC 3927.
+
+        """
+        return self in self._constants._linklocal_network
+
+
+class IPv4Interface(IPv4Address):
+
+    def __init__(self, address):
+        if isinstance(address, (bytes, _compat_int_types)):
+            IPv4Address.__init__(self, address)
+            self.network = IPv4Network(self._ip)
+            self._prefixlen = self._max_prefixlen
+            return
+
+        if isinstance(address, tuple):
+            IPv4Address.__init__(self, address[0])
+            if len(address) > 1:
+                self._prefixlen = int(address[1])
+            else:
+                self._prefixlen = self._max_prefixlen
+
+            self.network = IPv4Network(address, strict=False)
+            self.netmask = self.network.netmask
+            self.hostmask = self.network.hostmask
+            return
+
+        addr = _split_optional_netmask(address)
+        IPv4Address.__init__(self, addr[0])
+
+        self.network = IPv4Network(address, strict=False)
+        self._prefixlen = self.network._prefixlen
+
+        self.netmask = self.network.netmask
+        self.hostmask = self.network.hostmask
+
+    def __str__(self):
+        return '%s/%d' % (self._string_from_ip_int(self._ip),
+                          self.network.prefixlen)
+
+    def __eq__(self, other):
+        address_equal = IPv4Address.__eq__(self, other)
+        if not address_equal or address_equal is NotImplemented:
+            return address_equal
+        try:
+            return self.network == other.network
+        except AttributeError:
+            # An interface with an associated network is NOT the
+            # same as an unassociated address. That's why the hash
+            # takes the extra info into account.
+            return False
+
+    def __lt__(self, other):
+        address_less = IPv4Address.__lt__(self, other)
+        if address_less is NotImplemented:
+            return NotImplemented
+        try:
+            return self.network < other.network
+        except AttributeError:
+            # We *do* allow addresses and interfaces to be sorted. The
+            # unassociated address is considered less than all interfaces.
+            return False
+
+    def __hash__(self):
+        return self._ip ^ self._prefixlen ^ int(self.network.network_address)
+
+    __reduce__ = _IPAddressBase.__reduce__
+
+    @property
+    def ip(self):
+        return IPv4Address(self._ip)
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.hostmask)
+
+
+class IPv4Network(_BaseV4, _BaseNetwork):
+
+    """This class represents and manipulates 32-bit IPv4 network + addresses..
+
+    Attributes: [examples for IPv4Network('192.0.2.0/27')]
+        .network_address: IPv4Address('192.0.2.0')
+        .hostmask: IPv4Address('0.0.0.31')
+        .broadcast_address: IPv4Address('192.0.2.32')
+        .netmask: IPv4Address('255.255.255.224')
+        .prefixlen: 27
+
+    """
+    # Class to use when creating address objects
+    _address_class = IPv4Address
+
+    def __init__(self, address, strict=True):
+
+        """Instantiate a new IPv4 network object.
+
+        Args:
+            address: A string or integer representing the IP [& network].
+              '192.0.2.0/24'
+              '192.0.2.0/255.255.255.0'
+              '192.0.0.2/0.0.0.255'
+              are all functionally the same in IPv4. Similarly,
+              '192.0.2.1'
+              '192.0.2.1/255.255.255.255'
+              '192.0.2.1/32'
+              are also functionally equivalent. That is to say, failing to
+              provide a subnetmask will create an object with a mask of /32.
+
+              If the mask (portion after the / in the argument) is given in
+              dotted quad form, it is treated as a netmask if it starts with a
+              non-zero field (e.g. /255.0.0.0 == /8) and as a hostmask if it
+              starts with a zero field (e.g. 0.255.255.255 == /8), with the
+              single exception of an all-zero mask which is treated as a
+              netmask == /0. If no mask is given, a default of /32 is used.
+
+              Additionally, an integer can be passed, so
+              IPv4Network('192.0.2.1') == IPv4Network(3221225985)
+              or, more generally
+              IPv4Interface(int(IPv4Interface('192.0.2.1'))) ==
+                IPv4Interface('192.0.2.1')
+
+        Raises:
+            AddressValueError: If ipaddress isn't a valid IPv4 address.
+            NetmaskValueError: If the netmask isn't valid for
+              an IPv4 address.
+            ValueError: If strict is True and a network address is not
+              supplied.
+
+        """
+        _BaseNetwork.__init__(self, address)
+
+        # Constructing from a packed address or integer
+        if isinstance(address, (_compat_int_types, bytes)):
+            self.network_address = IPv4Address(address)
+            self.netmask, self._prefixlen = self._make_netmask(
+                self._max_prefixlen)
+            # fixme: address/network test here.
+            return
+
+        if isinstance(address, tuple):
+            if len(address) > 1:
+                arg = address[1]
+            else:
+                # We weren't given an address[1]
+                arg = self._max_prefixlen
+            self.network_address = IPv4Address(address[0])
+            self.netmask, self._prefixlen = self._make_netmask(arg)
+            packed = int(self.network_address)
+            if packed & int(self.netmask) != packed:
+                if strict:
+                    raise ValueError('%s has host bits set' % self)
+                else:
+                    self.network_address = IPv4Address(packed &
+                                                       int(self.netmask))
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP prefix string.
+        addr = _split_optional_netmask(address)
+        self.network_address = IPv4Address(self._ip_int_from_string(addr[0]))
+
+        if len(addr) == 2:
+            arg = addr[1]
+        else:
+            arg = self._max_prefixlen
+        self.netmask, self._prefixlen = self._make_netmask(arg)
+
+        if strict:
+            if (IPv4Address(int(self.network_address) & int(self.netmask)) !=
+                    self.network_address):
+                raise ValueError('%s has host bits set' % self)
+        self.network_address = IPv4Address(int(self.network_address) &
+                                           int(self.netmask))
+
+        if self._prefixlen == (self._max_prefixlen - 1):
+            self.hosts = self.__iter__
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, True if the address is not reserved per
+            iana-ipv4-special-registry.
+
+        """
+        return (not (self.network_address in IPv4Network('100.64.0.0/10') and
+                self.broadcast_address in IPv4Network('100.64.0.0/10')) and
+                not self.is_private)
+
+
+class _IPv4Constants(object):
+
+    _linklocal_network = IPv4Network('169.254.0.0/16')
+
+    _loopback_network = IPv4Network('127.0.0.0/8')
+
+    _multicast_network = IPv4Network('224.0.0.0/4')
+
+    _public_network = IPv4Network('100.64.0.0/10')
+
+    _private_networks = [
+        IPv4Network('0.0.0.0/8'),
+        IPv4Network('10.0.0.0/8'),
+        IPv4Network('127.0.0.0/8'),
+        IPv4Network('169.254.0.0/16'),
+        IPv4Network('172.16.0.0/12'),
+        IPv4Network('192.0.0.0/29'),
+        IPv4Network('192.0.0.170/31'),
+        IPv4Network('192.0.2.0/24'),
+        IPv4Network('192.168.0.0/16'),
+        IPv4Network('198.18.0.0/15'),
+        IPv4Network('198.51.100.0/24'),
+        IPv4Network('203.0.113.0/24'),
+        IPv4Network('240.0.0.0/4'),
+        IPv4Network('255.255.255.255/32'),
+    ]
+
+    _reserved_network = IPv4Network('240.0.0.0/4')
+
+    _unspecified_address = IPv4Address('0.0.0.0')
+
+
+IPv4Address._constants = _IPv4Constants
+
+
+class _BaseV6(object):
+
+    """Base IPv6 object.
+
+    The following methods are used by IPv6 objects in both single IP
+    addresses and networks.
+
+    """
+
+    __slots__ = ()
+    _version = 6
+    _ALL_ONES = (2 ** IPV6LENGTH) - 1
+    _HEXTET_COUNT = 8
+    _HEX_DIGITS = frozenset('0123456789ABCDEFabcdef')
+    _max_prefixlen = IPV6LENGTH
+
+    # There are only a bunch of valid v6 netmasks, so we cache them all
+    # when constructed (see _make_netmask()).
+    _netmask_cache = {}
+
+    @classmethod
+    def _make_netmask(cls, arg):
+        """Make a (netmask, prefix_len) tuple from the given argument.
+
+        Argument can be:
+        - an integer (the prefix length)
+        - a string representing the prefix length (e.g. "24")
+        - a string representing the prefix netmask (e.g. "255.255.255.0")
+        """
+        if arg not in cls._netmask_cache:
+            if isinstance(arg, _compat_int_types):
+                prefixlen = arg
+            else:
+                prefixlen = cls._prefix_from_prefix_string(arg)
+            netmask = IPv6Address(cls._ip_int_from_prefix(prefixlen))
+            cls._netmask_cache[arg] = netmask, prefixlen
+        return cls._netmask_cache[arg]
+
+    @classmethod
+    def _ip_int_from_string(cls, ip_str):
+        """Turn an IPv6 ip_str into an integer.
+
+        Args:
+            ip_str: A string, the IPv6 ip_str.
+
+        Returns:
+            An int, the IPv6 address
+
+        Raises:
+            AddressValueError: if ip_str isn't a valid IPv6 Address.
+
+        """
+        if not ip_str:
+            raise AddressValueError('Address cannot be empty')
+
+        parts = ip_str.split(':')
+
+        # An IPv6 address needs at least 2 colons (3 parts).
+        _min_parts = 3
+        if len(parts) < _min_parts:
+            msg = "At least %d parts expected in %r" % (_min_parts, ip_str)
+            raise AddressValueError(msg)
+
+        # If the address has an IPv4-style suffix, convert it to hexadecimal.
+        if '.' in parts[-1]:
+            try:
+                ipv4_int = IPv4Address(parts.pop())._ip
+            except AddressValueError as exc:
+                raise AddressValueError("%s in %r" % (exc, ip_str))
+            parts.append('%x' % ((ipv4_int >> 16) & 0xFFFF))
+            parts.append('%x' % (ipv4_int & 0xFFFF))
+
+        # An IPv6 address can't have more than 8 colons (9 parts).
+        # The extra colon comes from using the "::" notation for a single
+        # leading or trailing zero part.
+        _max_parts = cls._HEXTET_COUNT + 1
+        if len(parts) > _max_parts:
+            msg = "At most %d colons permitted in %r" % (
+                _max_parts - 1, ip_str)
+            raise AddressValueError(msg)
+
+        # Disregarding the endpoints, find '::' with nothing in between.
+        # This indicates that a run of zeroes has been skipped.
+        skip_index = None
+        for i in _compat_range(1, len(parts) - 1):
+            if not parts[i]:
+                if skip_index is not None:
+                    # Can't have more than one '::'
+                    msg = "At most one '::' permitted in %r" % ip_str
+                    raise AddressValueError(msg)
+                skip_index = i
+
+        # parts_hi is the number of parts to copy from above/before the '::'
+        # parts_lo is the number of parts to copy from below/after the '::'
+        if skip_index is not None:
+            # If we found a '::', then check if it also covers the endpoints.
+            parts_hi = skip_index
+            parts_lo = len(parts) - skip_index - 1
+            if not parts[0]:
+                parts_hi -= 1
+                if parts_hi:
+                    msg = "Leading ':' only permitted as part of '::' in %r"
+                    raise AddressValueError(msg % ip_str)  # ^: requires ^::
+            if not parts[-1]:
+                parts_lo -= 1
+                if parts_lo:
+                    msg = "Trailing ':' only permitted as part of '::' in %r"
+                    raise AddressValueError(msg % ip_str)  # :$ requires ::$
+            parts_skipped = cls._HEXTET_COUNT - (parts_hi + parts_lo)
+            if parts_skipped < 1:
+                msg = "Expected at most %d other parts with '::' in %r"
+                raise AddressValueError(msg % (cls._HEXTET_COUNT - 1, ip_str))
+        else:
+            # Otherwise, allocate the entire address to parts_hi.  The
+            # endpoints could still be empty, but _parse_hextet() will check
+            # for that.
+            if len(parts) != cls._HEXTET_COUNT:
+                msg = "Exactly %d parts expected without '::' in %r"
+                raise AddressValueError(msg % (cls._HEXTET_COUNT, ip_str))
+            if not parts[0]:
+                msg = "Leading ':' only permitted as part of '::' in %r"
+                raise AddressValueError(msg % ip_str)  # ^: requires ^::
+            if not parts[-1]:
+                msg = "Trailing ':' only permitted as part of '::' in %r"
+                raise AddressValueError(msg % ip_str)  # :$ requires ::$
+            parts_hi = len(parts)
+            parts_lo = 0
+            parts_skipped = 0
+
+        try:
+            # Now, parse the hextets into a 128-bit integer.
+            ip_int = 0
+            for i in range(parts_hi):
+                ip_int <<= 16
+                ip_int |= cls._parse_hextet(parts[i])
+            ip_int <<= 16 * parts_skipped
+            for i in range(-parts_lo, 0):
+                ip_int <<= 16
+                ip_int |= cls._parse_hextet(parts[i])
+            return ip_int
+        except ValueError as exc:
+            raise AddressValueError("%s in %r" % (exc, ip_str))
+
+    @classmethod
+    def _parse_hextet(cls, hextet_str):
+        """Convert an IPv6 hextet string into an integer.
+
+        Args:
+            hextet_str: A string, the number to parse.
+
+        Returns:
+            The hextet as an integer.
+
+        Raises:
+            ValueError: if the input isn't strictly a hex number from
+              [0..FFFF].
+
+        """
+        # Whitelist the characters, since int() allows a lot of bizarre stuff.
+        if not cls._HEX_DIGITS.issuperset(hextet_str):
+            raise ValueError("Only hex digits permitted in %r" % hextet_str)
+        # We do the length check second, since the invalid character error
+        # is likely to be more informative for the user
+        if len(hextet_str) > 4:
+            msg = "At most 4 characters permitted in %r"
+            raise ValueError(msg % hextet_str)
+        # Length check means we can skip checking the integer value
+        return int(hextet_str, 16)
+
+    @classmethod
+    def _compress_hextets(cls, hextets):
+        """Compresses a list of hextets.
+
+        Compresses a list of strings, replacing the longest continuous
+        sequence of "0" in the list with "" and adding empty strings at
+        the beginning or at the end of the string such that subsequently
+        calling ":".join(hextets) will produce the compressed version of
+        the IPv6 address.
+
+        Args:
+            hextets: A list of strings, the hextets to compress.
+
+        Returns:
+            A list of strings.
+
+        """
+        best_doublecolon_start = -1
+        best_doublecolon_len = 0
+        doublecolon_start = -1
+        doublecolon_len = 0
+        for index, hextet in enumerate(hextets):
+            if hextet == '0':
+                doublecolon_len += 1
+                if doublecolon_start == -1:
+                    # Start of a sequence of zeros.
+                    doublecolon_start = index
+                if doublecolon_len > best_doublecolon_len:
+                    # This is the longest sequence of zeros so far.
+                    best_doublecolon_len = doublecolon_len
+                    best_doublecolon_start = doublecolon_start
+            else:
+                doublecolon_len = 0
+                doublecolon_start = -1
+
+        if best_doublecolon_len > 1:
+            best_doublecolon_end = (best_doublecolon_start +
+                                    best_doublecolon_len)
+            # For zeros at the end of the address.
+            if best_doublecolon_end == len(hextets):
+                hextets += ['']
+            hextets[best_doublecolon_start:best_doublecolon_end] = ['']
+            # For zeros at the beginning of the address.
+            if best_doublecolon_start == 0:
+                hextets = [''] + hextets
+
+        return hextets
+
+    @classmethod
+    def _string_from_ip_int(cls, ip_int=None):
+        """Turns a 128-bit integer into hexadecimal notation.
+
+        Args:
+            ip_int: An integer, the IP address.
+
+        Returns:
+            A string, the hexadecimal representation of the address.
+
+        Raises:
+            ValueError: The address is bigger than 128 bits of all ones.
+
+        """
+        if ip_int is None:
+            ip_int = int(cls._ip)
+
+        if ip_int > cls._ALL_ONES:
+            raise ValueError('IPv6 address is too large')
+
+        hex_str = '%032x' % ip_int
+        hextets = ['%x' % int(hex_str[x:x + 4], 16) for x in range(0, 32, 4)]
+
+        hextets = cls._compress_hextets(hextets)
+        return ':'.join(hextets)
+
+    def _explode_shorthand_ip_string(self):
+        """Expand a shortened IPv6 address.
+
+        Args:
+            ip_str: A string, the IPv6 address.
+
+        Returns:
+            A string, the expanded IPv6 address.
+
+        """
+        if isinstance(self, IPv6Network):
+            ip_str = _compat_str(self.network_address)
+        elif isinstance(self, IPv6Interface):
+            ip_str = _compat_str(self.ip)
+        else:
+            ip_str = _compat_str(self)
+
+        ip_int = self._ip_int_from_string(ip_str)
+        hex_str = '%032x' % ip_int
+        parts = [hex_str[x:x + 4] for x in range(0, 32, 4)]
+        if isinstance(self, (_BaseNetwork, IPv6Interface)):
+            return '%s/%d' % (':'.join(parts), self._prefixlen)
+        return ':'.join(parts)
+
+    def _reverse_pointer(self):
+        """Return the reverse DNS pointer name for the IPv6 address.
+
+        This implements the method described in RFC3596 2.5.
+
+        """
+        reverse_chars = self.exploded[::-1].replace(':', '')
+        return '.'.join(reverse_chars) + '.ip6.arpa'
+
+    @property
+    def max_prefixlen(self):
+        return self._max_prefixlen
+
+    @property
+    def version(self):
+        return self._version
+
+
+class IPv6Address(_BaseV6, _BaseAddress):
+
+    """Represent and manipulate single IPv6 Addresses."""
+
+    __slots__ = ('_ip', '__weakref__')
+
+    def __init__(self, address):
+        """Instantiate a new IPv6 address object.
+
+        Args:
+            address: A string or integer representing the IP
+
+              Additionally, an integer can be passed, so
+              IPv6Address('2001:db8::') ==
+                IPv6Address(42540766411282592856903984951653826560)
+              or, more generally
+              IPv6Address(int(IPv6Address('2001:db8::'))) ==
+                IPv6Address('2001:db8::')
+
+        Raises:
+            AddressValueError: If address isn't a valid IPv6 address.
+
+        """
+        # Efficient constructor from integer.
+        if isinstance(address, _compat_int_types):
+            self._check_int_address(address)
+            self._ip = address
+            return
+
+        # Constructing from a packed address
+        if isinstance(address, bytes):
+            self._check_packed_address(address, 16)
+            bvs = _compat_bytes_to_byte_vals(address)
+            self._ip = _compat_int_from_byte_vals(bvs, 'big')
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP string.
+        addr_str = _compat_str(address)
+        if '/' in addr_str:
+            raise AddressValueError("Unexpected '/' in %r" % address)
+        self._ip = self._ip_int_from_string(addr_str)
+
+    @property
+    def packed(self):
+        """The binary representation of this address."""
+        return v6_int_to_packed(self._ip)
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is a multicast address.
+            See RFC 2373 2.7 for details.
+
+        """
+        return self in self._constants._multicast_network
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+        Returns:
+            A boolean, True if the address is within one of the
+            reserved IPv6 Network ranges.
+
+        """
+        return any(self in x for x in self._constants._reserved_networks)
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 4291.
+
+        """
+        return self in self._constants._linklocal_network
+
+    @property
+    def is_site_local(self):
+        """Test if the address is reserved for site-local.
+
+        Note that the site-local address space has been deprecated by RFC 3879.
+        Use is_private to test if this address is in the space of unique local
+        addresses as defined by RFC 4193.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 3513 2.5.6.
+
+        """
+        return self in self._constants._sitelocal_network
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv6-special-registry.
+
+        """
+        return any(self in net for net in self._constants._private_networks)
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, true if the address is not reserved per
+            iana-ipv6-special-registry.
+
+        """
+        return not self.is_private
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 2373 2.5.2.
+
+        """
+        return self._ip == 0
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback address as defined in
+            RFC 2373 2.5.3.
+
+        """
+        return self._ip == 1
+
+    @property
+    def ipv4_mapped(self):
+        """Return the IPv4 mapped address.
+
+        Returns:
+            If the IPv6 address is a v4 mapped address, return the
+            IPv4 mapped address. Return None otherwise.
+
+        """
+        if (self._ip >> 32) != 0xFFFF:
+            return None
+        return IPv4Address(self._ip & 0xFFFFFFFF)
+
+    @property
+    def teredo(self):
+        """Tuple of embedded teredo IPs.
+
+        Returns:
+            Tuple of the (server, client) IPs or None if the address
+            doesn't appear to be a teredo address (doesn't start with
+            2001::/32)
+
+        """
+        if (self._ip >> 96) != 0x20010000:
+            return None
+        return (IPv4Address((self._ip >> 64) & 0xFFFFFFFF),
+                IPv4Address(~self._ip & 0xFFFFFFFF))
+
+    @property
+    def sixtofour(self):
+        """Return the IPv4 6to4 embedded address.
+
+        Returns:
+            The IPv4 6to4-embedded address if present or None if the
+            address doesn't appear to contain a 6to4 embedded address.
+
+        """
+        if (self._ip >> 112) != 0x2002:
+            return None
+        return IPv4Address((self._ip >> 80) & 0xFFFFFFFF)
+
+
+class IPv6Interface(IPv6Address):
+
+    def __init__(self, address):
+        if isinstance(address, (bytes, _compat_int_types)):
+            IPv6Address.__init__(self, address)
+            self.network = IPv6Network(self._ip)
+            self._prefixlen = self._max_prefixlen
+            return
+        if isinstance(address, tuple):
+            IPv6Address.__init__(self, address[0])
+            if len(address) > 1:
+                self._prefixlen = int(address[1])
+            else:
+                self._prefixlen = self._max_prefixlen
+            self.network = IPv6Network(address, strict=False)
+            self.netmask = self.network.netmask
+            self.hostmask = self.network.hostmask
+            return
+
+        addr = _split_optional_netmask(address)
+        IPv6Address.__init__(self, addr[0])
+        self.network = IPv6Network(address, strict=False)
+        self.netmask = self.network.netmask
+        self._prefixlen = self.network._prefixlen
+        self.hostmask = self.network.hostmask
+
+    def __str__(self):
+        return '%s/%d' % (self._string_from_ip_int(self._ip),
+                          self.network.prefixlen)
+
+    def __eq__(self, other):
+        address_equal = IPv6Address.__eq__(self, other)
+        if not address_equal or address_equal is NotImplemented:
+            return address_equal
+        try:
+            return self.network == other.network
+        except AttributeError:
+            # An interface with an associated network is NOT the
+            # same as an unassociated address. That's why the hash
+            # takes the extra info into account.
+            return False
+
+    def __lt__(self, other):
+        address_less = IPv6Address.__lt__(self, other)
+        if address_less is NotImplemented:
+            return NotImplemented
+        try:
+            return self.network < other.network
+        except AttributeError:
+            # We *do* allow addresses and interfaces to be sorted. The
+            # unassociated address is considered less than all interfaces.
+            return False
+
+    def __hash__(self):
+        return self._ip ^ self._prefixlen ^ int(self.network.network_address)
+
+    __reduce__ = _IPAddressBase.__reduce__
+
+    @property
+    def ip(self):
+        return IPv6Address(self._ip)
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.hostmask)
+
+    @property
+    def is_unspecified(self):
+        return self._ip == 0 and self.network.is_unspecified
+
+    @property
+    def is_loopback(self):
+        return self._ip == 1 and self.network.is_loopback
+
+
+class IPv6Network(_BaseV6, _BaseNetwork):
+
+    """This class represents and manipulates 128-bit IPv6 networks.
+
+    Attributes: [examples for IPv6('2001:db8::1000/124')]
+        .network_address: IPv6Address('2001:db8::1000')
+        .hostmask: IPv6Address('::f')
+        .broadcast_address: IPv6Address('2001:db8::100f')
+        .netmask: IPv6Address('ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0')
+        .prefixlen: 124
+
+    """
+
+    # Class to use when creating address objects
+    _address_class = IPv6Address
+
+    def __init__(self, address, strict=True):
+        """Instantiate a new IPv6 Network object.
+
+        Args:
+            address: A string or integer representing the IPv6 network or the
+              IP and prefix/netmask.
+              '2001:db8::/128'
+              '2001:db8:0000:0000:0000:0000:0000:0000/128'
+              '2001:db8::'
+              are all functionally the same in IPv6.  That is to say,
+              failing to provide a subnetmask will create an object with
+              a mask of /128.
+
+              Additionally, an integer can be passed, so
+              IPv6Network('2001:db8::') ==
+                IPv6Network(42540766411282592856903984951653826560)
+              or, more generally
+              IPv6Network(int(IPv6Network('2001:db8::'))) ==
+                IPv6Network('2001:db8::')
+
+            strict: A boolean. If true, ensure that we have been passed
+              A true network address, eg, 2001:db8::1000/124 and not an
+              IP address on a network, eg, 2001:db8::1/124.
+
+        Raises:
+            AddressValueError: If address isn't a valid IPv6 address.
+            NetmaskValueError: If the netmask isn't valid for
+              an IPv6 address.
+            ValueError: If strict was True and a network address was not
+              supplied.
+
+        """
+        _BaseNetwork.__init__(self, address)
+
+        # Efficient constructor from integer or packed address
+        if isinstance(address, (bytes, _compat_int_types)):
+            self.network_address = IPv6Address(address)
+            self.netmask, self._prefixlen = self._make_netmask(
+                self._max_prefixlen)
+            return
+
+        if isinstance(address, tuple):
+            if len(address) > 1:
+                arg = address[1]
+            else:
+                arg = self._max_prefixlen
+            self.netmask, self._prefixlen = self._make_netmask(arg)
+            self.network_address = IPv6Address(address[0])
+            packed = int(self.network_address)
+            if packed & int(self.netmask) != packed:
+                if strict:
+                    raise ValueError('%s has host bits set' % self)
+                else:
+                    self.network_address = IPv6Address(packed &
+                                                       int(self.netmask))
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP prefix string.
+        addr = _split_optional_netmask(address)
+
+        self.network_address = IPv6Address(self._ip_int_from_string(addr[0]))
+
+        if len(addr) == 2:
+            arg = addr[1]
+        else:
+            arg = self._max_prefixlen
+        self.netmask, self._prefixlen = self._make_netmask(arg)
+
+        if strict:
+            if (IPv6Address(int(self.network_address) & int(self.netmask)) !=
+                    self.network_address):
+                raise ValueError('%s has host bits set' % self)
+        self.network_address = IPv6Address(int(self.network_address) &
+                                           int(self.netmask))
+
+        if self._prefixlen == (self._max_prefixlen - 1):
+            self.hosts = self.__iter__
+
+    def hosts(self):
+        """Generate Iterator over usable hosts in a network.
+
+          This is like __iter__ except it doesn't return the
+          Subnet-Router anycast address.
+
+        """
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network + 1, broadcast + 1):
+            yield self._address_class(x)
+
+    @property
+    def is_site_local(self):
+        """Test if the address is reserved for site-local.
+
+        Note that the site-local address space has been deprecated by RFC 3879.
+        Use is_private to test if this address is in the space of unique local
+        addresses as defined by RFC 4193.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 3513 2.5.6.
+
+        """
+        return (self.network_address.is_site_local and
+                self.broadcast_address.is_site_local)
+
+
+class _IPv6Constants(object):
+
+    _linklocal_network = IPv6Network('fe80::/10')
+
+    _multicast_network = IPv6Network('ff00::/8')
+
+    _private_networks = [
+        IPv6Network('::1/128'),
+        IPv6Network('::/128'),
+        IPv6Network('::ffff:0:0/96'),
+        IPv6Network('100::/64'),
+        IPv6Network('2001::/23'),
+        IPv6Network('2001:2::/48'),
+        IPv6Network('2001:db8::/32'),
+        IPv6Network('2001:10::/28'),
+        IPv6Network('fc00::/7'),
+        IPv6Network('fe80::/10'),
+    ]
+
+    _reserved_networks = [
+        IPv6Network('::/8'), IPv6Network('100::/8'),
+        IPv6Network('200::/7'), IPv6Network('400::/6'),
+        IPv6Network('800::/5'), IPv6Network('1000::/4'),
+        IPv6Network('4000::/3'), IPv6Network('6000::/3'),
+        IPv6Network('8000::/3'), IPv6Network('A000::/3'),
+        IPv6Network('C000::/3'), IPv6Network('E000::/4'),
+        IPv6Network('F000::/5'), IPv6Network('F800::/6'),
+        IPv6Network('FE00::/9'),
+    ]
+
+    _sitelocal_network = IPv6Network('fec0::/10')
+
+
+IPv6Address._constants = _IPv6Constants
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py
new file mode 100644
index 0000000..a6f44a5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py
@@ -0,0 +1,347 @@
+# -*- coding: utf-8 -*-
+
+"""
+lockfile.py - Platform-independent advisory file locks.
+
+Requires Python 2.5 unless you apply 2.4.diff
+Locking is done on a per-thread basis instead of a per-process basis.
+
+Usage:
+
+>>> lock = LockFile('somefile')
+>>> try:
+...     lock.acquire()
+... except AlreadyLocked:
+...     print 'somefile', 'is locked already.'
+... except LockFailed:
+...     print 'somefile', 'can\\'t be locked.'
+... else:
+...     print 'got lock'
+got lock
+>>> print lock.is_locked()
+True
+>>> lock.release()
+
+>>> lock = LockFile('somefile')
+>>> print lock.is_locked()
+False
+>>> with lock:
+...    print lock.is_locked()
+True
+>>> print lock.is_locked()
+False
+
+>>> lock = LockFile('somefile')
+>>> # It is okay to lock twice from the same thread...
+>>> with lock:
+...     lock.acquire()
+...
+>>> # Though no counter is kept, so you can't unlock multiple times...
+>>> print lock.is_locked()
+False
+
+Exceptions:
+
+    Error - base class for other exceptions
+        LockError - base class for all locking exceptions
+            AlreadyLocked - Another thread or process already holds the lock
+            LockFailed - Lock failed for some other reason
+        UnlockError - base class for all unlocking exceptions
+            AlreadyUnlocked - File was not locked.
+            NotMyLock - File was locked but not by the current thread/process
+"""
+
+from __future__ import absolute_import
+
+import functools
+import os
+import socket
+import threading
+import warnings
+
+# Work with PEP8 and non-PEP8 versions of threading module.
+if not hasattr(threading, "current_thread"):
+    threading.current_thread = threading.currentThread
+if not hasattr(threading.Thread, "get_name"):
+    threading.Thread.get_name = threading.Thread.getName
+
+__all__ = ['Error', 'LockError', 'LockTimeout', 'AlreadyLocked',
+           'LockFailed', 'UnlockError', 'NotLocked', 'NotMyLock',
+           'LinkFileLock', 'MkdirFileLock', 'SQLiteFileLock',
+           'LockBase', 'locked']
+
+
+class Error(Exception):
+    """
+    Base class for other exceptions.
+
+    >>> try:
+    ...   raise Error
+    ... except Exception:
+    ...   pass
+    """
+    pass
+
+
+class LockError(Error):
+    """
+    Base class for error arising from attempts to acquire the lock.
+
+    >>> try:
+    ...   raise LockError
+    ... except Error:
+    ...   pass
+    """
+    pass
+
+
+class LockTimeout(LockError):
+    """Raised when lock creation fails within a user-defined period of time.
+
+    >>> try:
+    ...   raise LockTimeout
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class AlreadyLocked(LockError):
+    """Some other thread/process is locking the file.
+
+    >>> try:
+    ...   raise AlreadyLocked
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class LockFailed(LockError):
+    """Lock file creation failed for some other reason.
+
+    >>> try:
+    ...   raise LockFailed
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class UnlockError(Error):
+    """
+    Base class for errors arising from attempts to release the lock.
+
+    >>> try:
+    ...   raise UnlockError
+    ... except Error:
+    ...   pass
+    """
+    pass
+
+
+class NotLocked(UnlockError):
+    """Raised when an attempt is made to unlock an unlocked file.
+
+    >>> try:
+    ...   raise NotLocked
+    ... except UnlockError:
+    ...   pass
+    """
+    pass
+
+
+class NotMyLock(UnlockError):
+    """Raised when an attempt is made to unlock a file someone else locked.
+
+    >>> try:
+    ...   raise NotMyLock
+    ... except UnlockError:
+    ...   pass
+    """
+    pass
+
+
+class _SharedBase(object):
+    def __init__(self, path):
+        self.path = path
+
+    def acquire(self, timeout=None):
+        """
+        Acquire the lock.
+
+        * If timeout is omitted (or None), wait forever trying to lock the
+          file.
+
+        * If timeout > 0, try to acquire the lock for that many seconds.  If
+          the lock period expires and the file is still locked, raise
+          LockTimeout.
+
+        * If timeout <= 0, raise AlreadyLocked immediately if the file is
+          already locked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def release(self):
+        """
+        Release the lock.
+
+        If the file is not locked, raise NotLocked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def __enter__(self):
+        """
+        Context manager support.
+        """
+        self.acquire()
+        return self
+
+    def __exit__(self, *_exc):
+        """
+        Context manager support.
+        """
+        self.release()
+
+    def __repr__(self):
+        return "<%s: %r>" % (self.__class__.__name__, self.path)
+
+
+class LockBase(_SharedBase):
+    """Base class for platform-specific lock classes."""
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = LockBase('somefile')
+        >>> lock = LockBase('somefile', threaded=False)
+        """
+        super(LockBase, self).__init__(path)
+        self.lock_file = os.path.abspath(path) + ".lock"
+        self.hostname = socket.gethostname()
+        self.pid = os.getpid()
+        if threaded:
+            t = threading.current_thread()
+            # Thread objects in Python 2.4 and earlier do not have ident
+            # attrs.  Worm around that.
+            ident = getattr(t, "ident", hash(t))
+            self.tname = "-%x" % (ident & 0xffffffff)
+        else:
+            self.tname = ""
+        dirname = os.path.dirname(self.lock_file)
+
+        # unique name is mostly about the current process, but must
+        # also contain the path -- otherwise, two adjacent locked
+        # files conflict (one file gets locked, creating lock-file and
+        # unique file, the other one gets locked, creating lock-file
+        # and overwriting the already existing lock-file, then one
+        # gets unlocked, deleting both lock-file and unique file,
+        # finally the last lock errors out upon releasing.
+        self.unique_name = os.path.join(dirname,
+                                        "%s%s.%s%s" % (self.hostname,
+                                                       self.tname,
+                                                       self.pid,
+                                                       hash(self.path)))
+        self.timeout = timeout
+
+    def is_locked(self):
+        """
+        Tell whether or not the file is locked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def i_am_locking(self):
+        """
+        Return True if this object is locking the file.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def break_lock(self):
+        """
+        Remove a lock.  Useful if a locking thread failed to unlock.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def __repr__(self):
+        return "<%s: %r -- %r>" % (self.__class__.__name__, self.unique_name,
+                                   self.path)
+
+
+def _fl_helper(cls, mod, *args, **kwds):
+    warnings.warn("Import from %s module instead of lockfile package" % mod,
+                  DeprecationWarning, stacklevel=2)
+    # This is a bit funky, but it's only for awhile.  The way the unit tests
+    # are constructed this function winds up as an unbound method, so it
+    # actually takes three args, not two.  We want to toss out self.
+    if not isinstance(args[0], str):
+        # We are testing, avoid the first arg
+        args = args[1:]
+    if len(args) == 1 and not kwds:
+        kwds["threaded"] = True
+    return cls(*args, **kwds)
+
+
+def LinkFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import LinkLockFile from the
+    lockfile.linklockfile module.
+    """
+    from . import linklockfile
+    return _fl_helper(linklockfile.LinkLockFile, "lockfile.linklockfile",
+                      *args, **kwds)
+
+
+def MkdirFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import MkdirLockFile from the
+    lockfile.mkdirlockfile module.
+    """
+    from . import mkdirlockfile
+    return _fl_helper(mkdirlockfile.MkdirLockFile, "lockfile.mkdirlockfile",
+                      *args, **kwds)
+
+
+def SQLiteFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import SQLiteLockFile from the
+    lockfile.mkdirlockfile module.
+    """
+    from . import sqlitelockfile
+    return _fl_helper(sqlitelockfile.SQLiteLockFile, "lockfile.sqlitelockfile",
+                      *args, **kwds)
+
+
+def locked(path, timeout=None):
+    """Decorator which enables locks for decorated function.
+
+    Arguments:
+     - path: path for lockfile.
+     - timeout (optional): Timeout for acquiring lock.
+
+     Usage:
+         @locked('/var/run/myname', timeout=0)
+         def myname(...):
+             ...
+    """
+    def decor(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            lock = FileLock(path, timeout=timeout)
+            lock.acquire()
+            try:
+                return func(*args, **kwargs)
+            finally:
+                lock.release()
+        return wrapper
+    return decor
+
+
+if hasattr(os, "link"):
+    from . import linklockfile as _llf
+    LockFile = _llf.LinkLockFile
+else:
+    from . import mkdirlockfile as _mlf
+    LockFile = _mlf.MkdirLockFile
+
+FileLock = LockFile
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py
new file mode 100644
index 0000000..2ca9be0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py
@@ -0,0 +1,73 @@
+from __future__ import absolute_import
+
+import time
+import os
+
+from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class LinkLockFile(LockBase):
+    """Lock access to a file using atomic property of link(2).
+
+    >>> lock = LinkLockFile('somefile')
+    >>> lock = LinkLockFile('somefile', threaded=False)
+    """
+
+    def acquire(self, timeout=None):
+        try:
+            open(self.unique_name, "wb").close()
+        except IOError:
+            raise LockFailed("failed to create %s" % self.unique_name)
+
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            # Try and create a hard link to it.
+            try:
+                os.link(self.unique_name, self.lock_file)
+            except OSError:
+                # Link creation failed.  Maybe we've double-locked?
+                nlinks = os.stat(self.unique_name).st_nlink
+                if nlinks == 2:
+                    # The original link plus the one I created == 2.  We're
+                    # good to go.
+                    return
+                else:
+                    # Otherwise the lock creation failed.
+                    if timeout is not None and time.time() > end_time:
+                        os.unlink(self.unique_name)
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout is not None and timeout / 10 or 0.1)
+            else:
+                # Link creation succeeded.  We're good to go.
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not os.path.exists(self.unique_name):
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.unique_name)
+        os.unlink(self.lock_file)
+
+    def is_locked(self):
+        return os.path.exists(self.lock_file)
+
+    def i_am_locking(self):
+        return (self.is_locked() and
+                os.path.exists(self.unique_name) and
+                os.stat(self.unique_name).st_nlink == 2)
+
+    def break_lock(self):
+        if os.path.exists(self.lock_file):
+            os.unlink(self.lock_file)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py
new file mode 100644
index 0000000..05a8c96
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py
@@ -0,0 +1,84 @@
+from __future__ import absolute_import, division
+
+import time
+import os
+import sys
+import errno
+
+from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class MkdirLockFile(LockBase):
+    """Lock file by creating a directory."""
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = MkdirLockFile('somefile')
+        >>> lock = MkdirLockFile('somefile', threaded=False)
+        """
+        LockBase.__init__(self, path, threaded, timeout)
+        # Lock file itself is a directory.  Place the unique file name into
+        # it.
+        self.unique_name = os.path.join(self.lock_file,
+                                        "%s.%s%s" % (self.hostname,
+                                                     self.tname,
+                                                     self.pid))
+
+    def acquire(self, timeout=None):
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        if timeout is None:
+            wait = 0.1
+        else:
+            wait = max(0, timeout / 10)
+
+        while True:
+            try:
+                os.mkdir(self.lock_file)
+            except OSError:
+                err = sys.exc_info()[1]
+                if err.errno == errno.EEXIST:
+                    # Already locked.
+                    if os.path.exists(self.unique_name):
+                        # Already locked by me.
+                        return
+                    if timeout is not None and time.time() > end_time:
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            # Someone else has the lock.
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(wait)
+                else:
+                    # Couldn't create the lock for some other reason
+                    raise LockFailed("failed to create %s" % self.lock_file)
+            else:
+                open(self.unique_name, "wb").close()
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not os.path.exists(self.unique_name):
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.unique_name)
+        os.rmdir(self.lock_file)
+
+    def is_locked(self):
+        return os.path.exists(self.lock_file)
+
+    def i_am_locking(self):
+        return (self.is_locked() and
+                os.path.exists(self.unique_name))
+
+    def break_lock(self):
+        if os.path.exists(self.lock_file):
+            for name in os.listdir(self.lock_file):
+                os.unlink(os.path.join(self.lock_file, name))
+            os.rmdir(self.lock_file)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py
new file mode 100644
index 0000000..069e85b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py
@@ -0,0 +1,190 @@
+# -*- coding: utf-8 -*-
+
+# pidlockfile.py
+#
+# Copyright © 2008–2009 Ben Finney <ben+python@benfinney.id.au>
+#
+# This is free software: you may copy, modify, and/or distribute this work
+# under the terms of the Python Software Foundation License, version 2 or
+# later as published by the Python Software Foundation.
+# No warranty expressed or implied. See the file LICENSE.PSF-2 for details.
+
+""" Lockfile behaviour implemented via Unix PID files.
+    """
+
+from __future__ import absolute_import
+
+import errno
+import os
+import time
+
+from . import (LockBase, AlreadyLocked, LockFailed, NotLocked, NotMyLock,
+               LockTimeout)
+
+
+class PIDLockFile(LockBase):
+    """ Lockfile implemented as a Unix PID file.
+
+    The lock file is a normal file named by the attribute `path`.
+    A lock's PID file contains a single line of text, containing
+    the process ID (PID) of the process that acquired the lock.
+
+    >>> lock = PIDLockFile('somefile')
+    >>> lock = PIDLockFile('somefile')
+    """
+
+    def __init__(self, path, threaded=False, timeout=None):
+        # pid lockfiles don't support threaded operation, so always force
+        # False as the threaded arg.
+        LockBase.__init__(self, path, False, timeout)
+        self.unique_name = self.path
+
+    def read_pid(self):
+        """ Get the PID from the lock file.
+            """
+        return read_pid_from_pidfile(self.path)
+
+    def is_locked(self):
+        """ Test if the lock is currently held.
+
+            The lock is held if the PID file for this lock exists.
+
+            """
+        return os.path.exists(self.path)
+
+    def i_am_locking(self):
+        """ Test if the lock is held by the current process.
+
+        Returns ``True`` if the current process ID matches the
+        number stored in the PID file.
+        """
+        return self.is_locked() and os.getpid() == self.read_pid()
+
+    def acquire(self, timeout=None):
+        """ Acquire the lock.
+
+        Creates the PID file for this lock, or raises an error if
+        the lock could not be acquired.
+        """
+
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            try:
+                write_pid_to_pidfile(self.path)
+            except OSError as exc:
+                if exc.errno == errno.EEXIST:
+                    # The lock creation failed.  Maybe sleep a bit.
+                    if time.time() > end_time:
+                        if timeout is not None and timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout is not None and timeout / 10 or 0.1)
+                else:
+                    raise LockFailed("failed to create %s" % self.path)
+            else:
+                return
+
+    def release(self):
+        """ Release the lock.
+
+            Removes the PID file to release the lock, or raises an
+            error if the current process does not hold the lock.
+
+            """
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        if not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        remove_existing_pidfile(self.path)
+
+    def break_lock(self):
+        """ Break an existing lock.
+
+            Removes the PID file if it already exists, otherwise does
+            nothing.
+
+            """
+        remove_existing_pidfile(self.path)
+
+
+def read_pid_from_pidfile(pidfile_path):
+    """ Read the PID recorded in the named PID file.
+
+        Read and return the numeric PID recorded as text in the named
+        PID file. If the PID file cannot be read, or if the content is
+        not a valid PID, return ``None``.
+
+        """
+    pid = None
+    try:
+        pidfile = open(pidfile_path, 'r')
+    except IOError:
+        pass
+    else:
+        # According to the FHS 2.3 section on PID files in /var/run:
+        #
+        #   The file must consist of the process identifier in
+        #   ASCII-encoded decimal, followed by a newline character.
+        #
+        #   Programs that read PID files should be somewhat flexible
+        #   in what they accept; i.e., they should ignore extra
+        #   whitespace, leading zeroes, absence of the trailing
+        #   newline, or additional lines in the PID file.
+
+        line = pidfile.readline().strip()
+        try:
+            pid = int(line)
+        except ValueError:
+            pass
+        pidfile.close()
+
+    return pid
+
+
+def write_pid_to_pidfile(pidfile_path):
+    """ Write the PID in the named PID file.
+
+        Get the numeric process ID (“PID”) of the current process
+        and write it to the named file as a line of text.
+
+        """
+    open_flags = (os.O_CREAT | os.O_EXCL | os.O_WRONLY)
+    open_mode = 0o644
+    pidfile_fd = os.open(pidfile_path, open_flags, open_mode)
+    pidfile = os.fdopen(pidfile_fd, 'w')
+
+    # According to the FHS 2.3 section on PID files in /var/run:
+    #
+    #   The file must consist of the process identifier in
+    #   ASCII-encoded decimal, followed by a newline character. For
+    #   example, if crond was process number 25, /var/run/crond.pid
+    #   would contain three characters: two, five, and newline.
+
+    pid = os.getpid()
+    pidfile.write("%s\n" % pid)
+    pidfile.close()
+
+
+def remove_existing_pidfile(pidfile_path):
+    """ Remove the named PID file if it exists.
+
+        Removing a PID file that doesn't already exist puts us in the
+        desired state, so we ignore the condition if the file does not
+        exist.
+
+        """
+    try:
+        os.remove(pidfile_path)
+    except OSError as exc:
+        if exc.errno == errno.ENOENT:
+            pass
+        else:
+            raise
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py
new file mode 100644
index 0000000..f997e24
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py
@@ -0,0 +1,156 @@
+from __future__ import absolute_import, division
+
+import time
+import os
+
+try:
+    unicode
+except NameError:
+    unicode = str
+
+from . import LockBase, NotLocked, NotMyLock, LockTimeout, AlreadyLocked
+
+
+class SQLiteLockFile(LockBase):
+    "Demonstrate SQL-based locking."
+
+    testdb = None
+
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = SQLiteLockFile('somefile')
+        >>> lock = SQLiteLockFile('somefile', threaded=False)
+        """
+        LockBase.__init__(self, path, threaded, timeout)
+        self.lock_file = unicode(self.lock_file)
+        self.unique_name = unicode(self.unique_name)
+
+        if SQLiteLockFile.testdb is None:
+            import tempfile
+            _fd, testdb = tempfile.mkstemp()
+            os.close(_fd)
+            os.unlink(testdb)
+            del _fd, tempfile
+            SQLiteLockFile.testdb = testdb
+
+        import sqlite3
+        self.connection = sqlite3.connect(SQLiteLockFile.testdb)
+
+        c = self.connection.cursor()
+        try:
+            c.execute("create table locks"
+                      "("
+                      "   lock_file varchar(32),"
+                      "   unique_name varchar(32)"
+                      ")")
+        except sqlite3.OperationalError:
+            pass
+        else:
+            self.connection.commit()
+            import atexit
+            atexit.register(os.unlink, SQLiteLockFile.testdb)
+
+    def acquire(self, timeout=None):
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        if timeout is None:
+            wait = 0.1
+        elif timeout <= 0:
+            wait = 0
+        else:
+            wait = timeout / 10
+
+        cursor = self.connection.cursor()
+
+        while True:
+            if not self.is_locked():
+                # Not locked.  Try to lock it.
+                cursor.execute("insert into locks"
+                               "  (lock_file, unique_name)"
+                               "  values"
+                               "  (?, ?)",
+                               (self.lock_file, self.unique_name))
+                self.connection.commit()
+
+                # Check to see if we are the only lock holder.
+                cursor.execute("select * from locks"
+                               "  where unique_name = ?",
+                               (self.unique_name,))
+                rows = cursor.fetchall()
+                if len(rows) > 1:
+                    # Nope.  Someone else got there.  Remove our lock.
+                    cursor.execute("delete from locks"
+                                   "  where unique_name = ?",
+                                   (self.unique_name,))
+                    self.connection.commit()
+                else:
+                    # Yup.  We're done, so go home.
+                    return
+            else:
+                # Check to see if we are the only lock holder.
+                cursor.execute("select * from locks"
+                               "  where unique_name = ?",
+                               (self.unique_name,))
+                rows = cursor.fetchall()
+                if len(rows) == 1:
+                    # We're the locker, so go home.
+                    return
+
+            # Maybe we should wait a bit longer.
+            if timeout is not None and time.time() > end_time:
+                if timeout > 0:
+                    # No more waiting.
+                    raise LockTimeout("Timeout waiting to acquire"
+                                      " lock for %s" %
+                                      self.path)
+                else:
+                    # Someone else has the lock and we are impatient..
+                    raise AlreadyLocked("%s is already locked" % self.path)
+
+            # Well, okay.  We'll give it a bit longer.
+            time.sleep(wait)
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        if not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me (by %s)" %
+                            (self.unique_name, self._who_is_locking()))
+        cursor = self.connection.cursor()
+        cursor.execute("delete from locks"
+                       "  where unique_name = ?",
+                       (self.unique_name,))
+        self.connection.commit()
+
+    def _who_is_locking(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select unique_name from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        return cursor.fetchone()[0]
+
+    def is_locked(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select * from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        rows = cursor.fetchall()
+        return not not rows
+
+    def i_am_locking(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select * from locks"
+                       "  where lock_file = ?"
+                       "    and unique_name = ?",
+                       (self.lock_file, self.unique_name))
+        return not not cursor.fetchall()
+
+    def break_lock(self):
+        cursor = self.connection.cursor()
+        cursor.execute("delete from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        self.connection.commit()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py
new file mode 100644
index 0000000..23b41f5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py
@@ -0,0 +1,70 @@
+from __future__ import absolute_import
+
+import os
+import time
+
+from . import (LockBase, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class SymlinkLockFile(LockBase):
+    """Lock access to a file using symlink(2)."""
+
+    def __init__(self, path, threaded=True, timeout=None):
+        # super(SymlinkLockFile).__init(...)
+        LockBase.__init__(self, path, threaded, timeout)
+        # split it back!
+        self.unique_name = os.path.split(self.unique_name)[1]
+
+    def acquire(self, timeout=None):
+        # Hopefully unnecessary for symlink.
+        # try:
+        #     open(self.unique_name, "wb").close()
+        # except IOError:
+        #     raise LockFailed("failed to create %s" % self.unique_name)
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            # Try and create a symbolic link to it.
+            try:
+                os.symlink(self.unique_name, self.lock_file)
+            except OSError:
+                # Link creation failed.  Maybe we've double-locked?
+                if self.i_am_locking():
+                    # Linked to out unique name. Proceed.
+                    return
+                else:
+                    # Otherwise the lock creation failed.
+                    if timeout is not None and time.time() > end_time:
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout / 10 if timeout is not None else 0.1)
+            else:
+                # Link creation succeeded.  We're good to go.
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.lock_file)
+
+    def is_locked(self):
+        return os.path.islink(self.lock_file)
+
+    def i_am_locking(self):
+        return (os.path.islink(self.lock_file)
+                and os.readlink(self.lock_file) == self.unique_name)
+
+    def break_lock(self):
+        if os.path.islink(self.lock_file):  # exists && link
+            os.unlink(self.lock_file)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/ordereddict.py b/venv/lib/python3.5/site-packages/pip/_vendor/ordereddict.py
new file mode 100644
index 0000000..7242b50
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/ordereddict.py
@@ -0,0 +1,127 @@
+# Copyright (c) 2009 Raymond Hettinger
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation files
+# (the "Software"), to deal in the Software without restriction,
+# including without limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of the Software,
+# and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+#     The above copyright notice and this permission notice shall be
+#     included in all copies or substantial portions of the Software.
+#
+#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#     OTHER DEALINGS IN THE SOFTWARE.
+
+from UserDict import DictMixin
+
+class OrderedDict(dict, DictMixin):
+
+    def __init__(self, *args, **kwds):
+        if len(args) > 1:
+            raise TypeError('expected at most 1 arguments, got %d' % len(args))
+        try:
+            self.__end
+        except AttributeError:
+            self.clear()
+        self.update(*args, **kwds)
+
+    def clear(self):
+        self.__end = end = []
+        end += [None, end, end]         # sentinel node for doubly linked list
+        self.__map = {}                 # key --> [key, prev, next]
+        dict.clear(self)
+
+    def __setitem__(self, key, value):
+        if key not in self:
+            end = self.__end
+            curr = end[1]
+            curr[2] = end[1] = self.__map[key] = [key, curr, end]
+        dict.__setitem__(self, key, value)
+
+    def __delitem__(self, key):
+        dict.__delitem__(self, key)
+        key, prev, next = self.__map.pop(key)
+        prev[2] = next
+        next[1] = prev
+
+    def __iter__(self):
+        end = self.__end
+        curr = end[2]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[2]
+
+    def __reversed__(self):
+        end = self.__end
+        curr = end[1]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[1]
+
+    def popitem(self, last=True):
+        if not self:
+            raise KeyError('dictionary is empty')
+        if last:
+            key = reversed(self).next()
+        else:
+            key = iter(self).next()
+        value = self.pop(key)
+        return key, value
+
+    def __reduce__(self):
+        items = [[k, self[k]] for k in self]
+        tmp = self.__map, self.__end
+        del self.__map, self.__end
+        inst_dict = vars(self).copy()
+        self.__map, self.__end = tmp
+        if inst_dict:
+            return (self.__class__, (items,), inst_dict)
+        return self.__class__, (items,)
+
+    def keys(self):
+        return list(self)
+
+    setdefault = DictMixin.setdefault
+    update = DictMixin.update
+    pop = DictMixin.pop
+    values = DictMixin.values
+    items = DictMixin.items
+    iterkeys = DictMixin.iterkeys
+    itervalues = DictMixin.itervalues
+    iteritems = DictMixin.iteritems
+
+    def __repr__(self):
+        if not self:
+            return '%s()' % (self.__class__.__name__,)
+        return '%s(%r)' % (self.__class__.__name__, self.items())
+
+    def copy(self):
+        return self.__class__(self)
+
+    @classmethod
+    def fromkeys(cls, iterable, value=None):
+        d = cls()
+        for key in iterable:
+            d[key] = value
+        return d
+
+    def __eq__(self, other):
+        if isinstance(other, OrderedDict):
+            if len(self) != len(other):
+                return False
+            for p, q in  zip(self.items(), other.items()):
+                if p != q:
+                    return False
+            return True
+        return dict.__eq__(self, other)
+
+    def __ne__(self, other):
+        return not self == other
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py
new file mode 100644
index 0000000..95d330e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py
@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
+
+__title__ = "packaging"
+__summary__ = "Core utilities for Python packages"
+__uri__ = "https://github.com/pypa/packaging"
+
+__version__ = "16.8"
+
+__author__ = "Donald Stufft and individual contributors"
+__email__ = "donald@stufft.io"
+
+__license__ = "BSD or Apache License, Version 2.0"
+__copyright__ = "Copyright 2014-2016 %s" % __author__
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py
new file mode 100644
index 0000000..5ee6220
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+from .__about__ import (
+    __author__, __copyright__, __email__, __license__, __summary__, __title__,
+    __uri__, __version__
+)
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__pycache__/version.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/__pycache__/version.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py
new file mode 100644
index 0000000..210bb80
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py
@@ -0,0 +1,30 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import sys
+
+
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+
+# flake8: noqa
+
+if PY3:
+    string_types = str,
+else:
+    string_types = basestring,
+
+
+def with_metaclass(meta, *bases):
+    """
+    Create a base class with a metaclass.
+    """
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py
new file mode 100644
index 0000000..ccc2786
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py
@@ -0,0 +1,68 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+
+class Infinity(object):
+
+    def __repr__(self):
+        return "Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self, other):
+        return True
+
+    def __neg__(self):
+        return NegativeInfinity
+
+Infinity = Infinity()
+
+
+class NegativeInfinity(object):
+
+    def __repr__(self):
+        return "-Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+    def __neg__(self):
+        return Infinity
+
+NegativeInfinity = NegativeInfinity()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py
new file mode 100644
index 0000000..f9ca1ff
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py
@@ -0,0 +1,303 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import operator
+import os
+import platform
+import sys
+
+from pip._vendor.pyparsing import (
+    ParseException, ParseResults, stringStart, stringEnd,
+)
+from pip._vendor.pyparsing import ZeroOrMore, Group, Forward, QuotedString
+from pip._vendor.pyparsing import Literal as L  # noqa
+
+from ._compat import string_types
+from .specifiers import Specifier, InvalidSpecifier
+
+
+__all__ = [
+    "InvalidMarker", "UndefinedComparison", "UndefinedEnvironmentName",
+    "Marker", "default_environment",
+]
+
+
+class InvalidMarker(ValueError):
+    """
+    An invalid marker was found, users should refer to PEP 508.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """
+    An invalid operation was attempted on a value that doesn't support it.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """
+    A name was attempted to be used that does not exist inside of the
+    environment.
+    """
+
+
+class Node(object):
+
+    def __init__(self, value):
+        self.value = value
+
+    def __str__(self):
+        return str(self.value)
+
+    def __repr__(self):
+        return "<{0}({1!r})>".format(self.__class__.__name__, str(self))
+
+    def serialize(self):
+        raise NotImplementedError
+
+
+class Variable(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+class Value(Node):
+
+    def serialize(self):
+        return '"{0}"'.format(self)
+
+
+class Op(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+VARIABLE = (
+    L("implementation_version") |
+    L("platform_python_implementation") |
+    L("implementation_name") |
+    L("python_full_version") |
+    L("platform_release") |
+    L("platform_version") |
+    L("platform_machine") |
+    L("platform_system") |
+    L("python_version") |
+    L("sys_platform") |
+    L("os_name") |
+    L("os.name") |  # PEP-345
+    L("sys.platform") |  # PEP-345
+    L("platform.version") |  # PEP-345
+    L("platform.machine") |  # PEP-345
+    L("platform.python_implementation") |  # PEP-345
+    L("python_implementation") |  # undocumented setuptools legacy
+    L("extra")
+)
+ALIASES = {
+    'os.name': 'os_name',
+    'sys.platform': 'sys_platform',
+    'platform.version': 'platform_version',
+    'platform.machine': 'platform_machine',
+    'platform.python_implementation': 'platform_python_implementation',
+    'python_implementation': 'platform_python_implementation'
+}
+VARIABLE.setParseAction(lambda s, l, t: Variable(ALIASES.get(t[0], t[0])))
+
+VERSION_CMP = (
+    L("===") |
+    L("==") |
+    L(">=") |
+    L("<=") |
+    L("!=") |
+    L("~=") |
+    L(">") |
+    L("<")
+)
+
+MARKER_OP = VERSION_CMP | L("not in") | L("in")
+MARKER_OP.setParseAction(lambda s, l, t: Op(t[0]))
+
+MARKER_VALUE = QuotedString("'") | QuotedString('"')
+MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0]))
+
+BOOLOP = L("and") | L("or")
+
+MARKER_VAR = VARIABLE | MARKER_VALUE
+
+MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR)
+MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0]))
+
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+
+MARKER_EXPR = Forward()
+MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN)
+MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR)
+
+MARKER = stringStart + MARKER_EXPR + stringEnd
+
+
+def _coerce_parse_result(results):
+    if isinstance(results, ParseResults):
+        return [_coerce_parse_result(i) for i in results]
+    else:
+        return results
+
+
+def _format_marker(marker, first=True):
+    assert isinstance(marker, (list, tuple, string_types))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (isinstance(marker, list) and len(marker) == 1 and
+            isinstance(marker[0], (list, tuple))):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": operator.lt,
+    "<=": operator.le,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.ge,
+    ">": operator.gt,
+}
+
+
+def _eval_op(lhs, op, rhs):
+    try:
+        spec = Specifier("".join([op.serialize(), rhs]))
+    except InvalidSpecifier:
+        pass
+    else:
+        return spec.contains(lhs)
+
+    oper = _operators.get(op.serialize())
+    if oper is None:
+        raise UndefinedComparison(
+            "Undefined {0!r} on {1!r} and {2!r}.".format(op, lhs, rhs)
+        )
+
+    return oper(lhs, rhs)
+
+
+_undefined = object()
+
+
+def _get_env(environment, name):
+    value = environment.get(name, _undefined)
+
+    if value is _undefined:
+        raise UndefinedEnvironmentName(
+            "{0!r} does not exist in evaluation environment.".format(name)
+        )
+
+    return value
+
+
+def _evaluate_markers(markers, environment):
+    groups = [[]]
+
+    for marker in markers:
+        assert isinstance(marker, (list, tuple, string_types))
+
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                lhs_value = _get_env(environment, lhs.value)
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                rhs_value = _get_env(environment, rhs.value)
+
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value))
+        else:
+            assert marker in ["and", "or"]
+            if marker == "or":
+                groups.append([])
+
+    return any(all(item) for item in groups)
+
+
+def format_full_version(info):
+    version = '{0.major}.{0.minor}.{0.micro}'.format(info)
+    kind = info.releaselevel
+    if kind != 'final':
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment():
+    if hasattr(sys, 'implementation'):
+        iver = format_full_version(sys.implementation.version)
+        implementation_name = sys.implementation.name
+    else:
+        iver = '0'
+        implementation_name = ''
+
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": platform.python_version()[:3],
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker(object):
+
+    def __init__(self, marker):
+        try:
+            self._markers = _coerce_parse_result(MARKER.parseString(marker))
+        except ParseException as e:
+            err_str = "Invalid marker: {0!r}, parse error at {1!r}".format(
+                marker, marker[e.loc:e.loc + 8])
+            raise InvalidMarker(err_str)
+
+    def __str__(self):
+        return _format_marker(self._markers)
+
+    def __repr__(self):
+        return "<Marker({0!r})>".format(str(self))
+
+    def evaluate(self, environment=None):
+        """Evaluate a marker.
+
+        Return the boolean from evaluating the given marker against the
+        environment. environment is an optional argument to override all or
+        part of the determined environment.
+
+        The environment is determined from the current Python process.
+        """
+        current_environment = default_environment()
+        if environment is not None:
+            current_environment.update(environment)
+
+        return _evaluate_markers(self._markers, current_environment)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py
new file mode 100644
index 0000000..49a4385
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py
@@ -0,0 +1,129 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import string
+import re
+
+from pip._vendor.pyparsing import (
+    stringStart, stringEnd, originalTextFor, ParseException
+)
+from pip._vendor.pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
+from pip._vendor.pyparsing import Literal as L  # noqa
+from pip._vendor.six.moves.urllib import parse as urlparse
+
+from .markers import MARKER_EXPR, Marker
+from .specifiers import LegacySpecifier, Specifier, SpecifierSet
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+ALPHANUM = Word(string.ascii_letters + string.digits)
+
+LBRACKET = L("[").suppress()
+RBRACKET = L("]").suppress()
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+COMMA = L(",").suppress()
+SEMICOLON = L(";").suppress()
+AT = L("@").suppress()
+
+PUNCTUATION = Word("-_.")
+IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
+IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
+
+NAME = IDENTIFIER("name")
+EXTRA = IDENTIFIER
+
+URI = Regex(r'[^ ]+')("url")
+URL = (AT + URI)
+
+EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA)
+EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras")
+
+VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE)
+VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE)
+
+VERSION_ONE = VERSION_PEP440 ^ VERSION_LEGACY
+VERSION_MANY = Combine(VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE),
+                       joinString=",", adjacent=False)("_raw_spec")
+_VERSION_SPEC = Optional(((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY))
+_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or '')
+
+VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier")
+VERSION_SPEC.setParseAction(lambda s, l, t: t[1])
+
+MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
+MARKER_EXPR.setParseAction(
+    lambda s, l, t: Marker(s[t._original_start:t._original_end])
+)
+MARKER_SEPERATOR = SEMICOLON
+MARKER = MARKER_SEPERATOR + MARKER_EXPR
+
+VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER)
+URL_AND_MARKER = URL + Optional(MARKER)
+
+NAMED_REQUIREMENT = \
+    NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER)
+
+REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd
+
+
+class Requirement(object):
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string):
+        try:
+            req = REQUIREMENT.parseString(requirement_string)
+        except ParseException as e:
+            raise InvalidRequirement(
+                "Invalid requirement, parse error at \"{0!r}\"".format(
+                    requirement_string[e.loc:e.loc + 8]))
+
+        self.name = req.name
+        if req.url:
+            parsed_url = urlparse.urlparse(req.url)
+            if not (parsed_url.scheme and parsed_url.netloc) or (
+                    not parsed_url.scheme and not parsed_url.netloc):
+                raise InvalidRequirement("Invalid URL given")
+            self.url = req.url
+        else:
+            self.url = None
+        self.extras = set(req.extras.asList() if req.extras else [])
+        self.specifier = SpecifierSet(req.specifier)
+        self.marker = req.marker if req.marker else None
+
+    def __str__(self):
+        parts = [self.name]
+
+        if self.extras:
+            parts.append("[{0}]".format(",".join(sorted(self.extras))))
+
+        if self.specifier:
+            parts.append(str(self.specifier))
+
+        if self.url:
+            parts.append("@ {0}".format(self.url))
+
+        if self.marker:
+            parts.append("; {0}".format(self.marker))
+
+        return "".join(parts)
+
+    def __repr__(self):
+        return "<Requirement({0!r})>".format(str(self))
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py
new file mode 100644
index 0000000..7f5a76c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py
@@ -0,0 +1,774 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import abc
+import functools
+import itertools
+import re
+
+from ._compat import string_types, with_metaclass
+from .version import Version, LegacyVersion, parse
+
+
+class InvalidSpecifier(ValueError):
+    """
+    An invalid specifier was found, users should refer to PEP 440.
+    """
+
+
+class BaseSpecifier(with_metaclass(abc.ABCMeta, object)):
+
+    @abc.abstractmethod
+    def __str__(self):
+        """
+        Returns the str representation of this Specifier like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self):
+        """
+        Returns a hash value for this Specifier like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are equal.
+        """
+
+    @abc.abstractmethod
+    def __ne__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are not equal.
+        """
+
+    @abc.abstractproperty
+    def prereleases(self):
+        """
+        Returns whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @prereleases.setter
+    def prereleases(self, value):
+        """
+        Sets whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item, prereleases=None):
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @abc.abstractmethod
+    def filter(self, iterable, prereleases=None):
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class _IndividualSpecifier(BaseSpecifier):
+
+    _operators = {}
+
+    def __init__(self, spec="", prereleases=None):
+        match = self._regex.search(spec)
+        if not match:
+            raise InvalidSpecifier("Invalid specifier: '{0}'".format(spec))
+
+        self._spec = (
+            match.group("operator").strip(),
+            match.group("version").strip(),
+        )
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<{0}({1!r}{2})>".format(
+            self.__class__.__name__,
+            str(self),
+            pre,
+        )
+
+    def __str__(self):
+        return "{0}{1}".format(*self._spec)
+
+    def __hash__(self):
+        return hash(self._spec)
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec == other._spec
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec != other._spec
+
+    def _get_operator(self, op):
+        return getattr(self, "_compare_{0}".format(self._operators[op]))
+
+    def _coerce_version(self, version):
+        if not isinstance(version, (LegacyVersion, Version)):
+            version = parse(version)
+        return version
+
+    @property
+    def operator(self):
+        return self._spec[0]
+
+    @property
+    def version(self):
+        return self._spec[1]
+
+    @property
+    def prereleases(self):
+        return self._prereleases
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Determine if prereleases are to be allowed or not.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # Normalize item to a Version or LegacyVersion, this allows us to have
+        # a shortcut for ``"2.0" in Specifier(">=2")
+        item = self._coerce_version(item)
+
+        # Determine if we should be supporting prereleases in this specifier
+        # or not, if we do not support prereleases than we can short circuit
+        # logic if this version is a prereleases.
+        if item.is_prerelease and not prereleases:
+            return False
+
+        # Actually do the comparison to determine if this item is contained
+        # within this Specifier or not.
+        return self._get_operator(self.operator)(item, self.version)
+
+    def filter(self, iterable, prereleases=None):
+        yielded = False
+        found_prereleases = []
+
+        kw = {"prereleases": prereleases if prereleases is not None else True}
+
+        # Attempt to iterate over all the values in the iterable and if any of
+        # them match, yield them.
+        for version in iterable:
+            parsed_version = self._coerce_version(version)
+
+            if self.contains(parsed_version, **kw):
+                # If our version is a prerelease, and we were not set to allow
+                # prereleases, then we'll store it for later incase nothing
+                # else matches this specifier.
+                if (parsed_version.is_prerelease and not
+                        (prereleases or self.prereleases)):
+                    found_prereleases.append(version)
+                # Either this is not a prerelease, or we should have been
+                # accepting prereleases from the begining.
+                else:
+                    yielded = True
+                    yield version
+
+        # Now that we've iterated over everything, determine if we've yielded
+        # any values, and if we have not and we have any prereleases stored up
+        # then we will go ahead and yield the prereleases.
+        if not yielded and found_prereleases:
+            for version in found_prereleases:
+                yield version
+
+
+class LegacySpecifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(==|!=|<=|>=|<|>))
+        \s*
+        (?P<version>
+            [^,;\s)]* # Since this is a "legacy" specifier, and the version
+                      # string can be just about anything, we match everything
+                      # except for whitespace, a semi-colon for marker support,
+                      # a closing paren since versions can be enclosed in
+                      # them, and a comma since it's a version separator.
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+    }
+
+    def _coerce_version(self, version):
+        if not isinstance(version, LegacyVersion):
+            version = LegacyVersion(str(version))
+        return version
+
+    def _compare_equal(self, prospective, spec):
+        return prospective == self._coerce_version(spec)
+
+    def _compare_not_equal(self, prospective, spec):
+        return prospective != self._coerce_version(spec)
+
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= self._coerce_version(spec)
+
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= self._coerce_version(spec)
+
+    def _compare_less_than(self, prospective, spec):
+        return prospective < self._coerce_version(spec)
+
+    def _compare_greater_than(self, prospective, spec):
+        return prospective > self._coerce_version(spec)
+
+
+def _require_version_compare(fn):
+    @functools.wraps(fn)
+    def wrapped(self, prospective, spec):
+        if not isinstance(prospective, Version):
+            return False
+        return fn(self, prospective, spec)
+    return wrapped
+
+
+class Specifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
+        (?P<version>
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                (?<====)  # Only match for the identity operator
+                \s*
+                [^\s]*    # We just match everything, except for whitespace
+                          # since we are only testing for strict identity.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?<===|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+
+                # You cannot use a wild card and a dev or local version
+                # together so group them with a | and make them optional.
+                (?:
+                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                    |
+                    \.\*  # Wild card syntax of .*
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?<=~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?<!==|!=|~=)         # We have special cases for these
+                                      # operators so we want to make sure they
+                                      # don't match here.
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "~=": "compatible",
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    @_require_version_compare
+    def _compare_compatible(self, prospective, spec):
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore post and dev releases and we want to treat the pre-release as
+        # it's own separate segment.
+        prefix = ".".join(
+            list(
+                itertools.takewhile(
+                    lambda x: (not x.startswith("post") and not
+                               x.startswith("dev")),
+                    _version_split(spec),
+                )
+            )[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return (self._get_operator(">=")(prospective, spec) and
+                self._get_operator("==")(prospective, prefix))
+
+    @_require_version_compare
+    def _compare_equal(self, prospective, spec):
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            # In the case of prefix matching we want to ignore local segment.
+            prospective = Version(prospective.public)
+            # Split the spec out by dots, and pretend that there is an implicit
+            # dot in between a release segment and a pre-release segment.
+            spec = _version_split(spec[:-2])  # Remove the trailing .*
+
+            # Split the prospective version out by dots, and pretend that there
+            # is an implicit dot in between a release segment and a pre-release
+            # segment.
+            prospective = _version_split(str(prospective))
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            prospective = prospective[:len(spec)]
+
+            # Pad out our two sides with zeros so that they both equal the same
+            # length.
+            spec, prospective = _pad_version(spec, prospective)
+        else:
+            # Convert our spec string into a Version
+            spec = Version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec.local:
+                prospective = Version(prospective.public)
+
+        return prospective == spec
+
+    @_require_version_compare
+    def _compare_not_equal(self, prospective, spec):
+        return not self._compare_equal(prospective, spec)
+
+    @_require_version_compare
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= Version(spec)
+
+    @_require_version_compare
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= Version(spec)
+
+    @_require_version_compare
+    def _compare_less_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a pre-release version, that we do not accept pre-release
+        # versions for the version mentioned in the specifier (e.g. <3.1 should
+        # not match 3.1.dev0, but should match 3.0.dev0).
+        if not spec.is_prerelease and prospective.is_prerelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    @_require_version_compare
+    def _compare_greater_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a post-release version, that we do not accept
+        # post-release versions for the version mentioned in the specifier
+        # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0).
+        if not spec.is_postrelease and prospective.is_postrelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # Ensure that we do not allow a local version of the version mentioned
+        # in the specifier, which is techincally greater than, to match.
+        if prospective.local is not None:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective, spec):
+        return str(prospective).lower() == str(spec).lower()
+
+    @property
+    def prereleases(self):
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Look at all of our specifiers and determine if they are inclusive
+        # operators, and if they are if they are including an explicit
+        # prerelease.
+        operator, version = self._spec
+        if operator in ["==", ">=", "<=", "~=", "==="]:
+            # The == specifier can include a trailing .*, if it does we
+            # want to remove before parsing.
+            if operator == "==" and version.endswith(".*"):
+                version = version[:-2]
+
+            # Parse the version, and if it is a pre-release than this
+            # specifier allows pre-releases.
+            if parse(version).is_prerelease:
+                return True
+
+        return False
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+
+_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
+
+
+def _version_split(version):
+    result = []
+    for item in version.split("."):
+        match = _prefix_regex.search(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _pad_version(left, right):
+    left_split, right_split = [], []
+
+    # Get the release segment of our versions
+    left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left)))
+    right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right)))
+
+    # Get the rest of our versions
+    left_split.append(left[len(left_split[0]):])
+    right_split.append(right[len(right_split[0]):])
+
+    # Insert our padding
+    left_split.insert(
+        1,
+        ["0"] * max(0, len(right_split[0]) - len(left_split[0])),
+    )
+    right_split.insert(
+        1,
+        ["0"] * max(0, len(left_split[0]) - len(right_split[0])),
+    )
+
+    return (
+        list(itertools.chain(*left_split)),
+        list(itertools.chain(*right_split)),
+    )
+
+
+class SpecifierSet(BaseSpecifier):
+
+    def __init__(self, specifiers="", prereleases=None):
+        # Split on , to break each indidivual specifier into it's own item, and
+        # strip each item to remove leading/trailing whitespace.
+        specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+        # Parsed each individual specifier, attempting first to make it a
+        # Specifier and falling back to a LegacySpecifier.
+        parsed = set()
+        for specifier in specifiers:
+            try:
+                parsed.add(Specifier(specifier))
+            except InvalidSpecifier:
+                parsed.add(LegacySpecifier(specifier))
+
+        # Turn our parsed specifiers into a frozen set and save them for later.
+        self._specs = frozenset(parsed)
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<SpecifierSet({0!r}{1})>".format(str(self), pre)
+
+    def __str__(self):
+        return ",".join(sorted(str(s) for s in self._specs))
+
+    def __hash__(self):
+        return hash(self._specs)
+
+    def __and__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = frozenset(self._specs | other._specs)
+
+        if self._prereleases is None and other._prereleases is not None:
+            specifier._prereleases = other._prereleases
+        elif self._prereleases is not None and other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        elif self._prereleases == other._prereleases:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease "
+                "overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs == other._specs
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs != other._specs
+
+    def __len__(self):
+        return len(self._specs)
+
+    def __iter__(self):
+        return iter(self._specs)
+
+    @property
+    def prereleases(self):
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        return any(s.prereleases for s in self._specs)
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Ensure that our item is a Version or LegacyVersion instance.
+        if not isinstance(item, (LegacyVersion, Version)):
+            item = parse(item)
+
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # We can determine if we're going to allow pre-releases by looking to
+        # see if any of the underlying items supports them. If none of them do
+        # and this item is a pre-release then we do not allow it and we can
+        # short circuit that here.
+        # Note: This means that 1.0.dev1 would not be contained in something
+        #       like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0
+        if not prereleases and item.is_prerelease:
+            return False
+
+        # We simply dispatch to the underlying specs here to make sure that the
+        # given version is contained within all of them.
+        # Note: This use of all() here means that an empty set of specifiers
+        #       will always return True, this is an explicit design decision.
+        return all(
+            s.contains(item, prereleases=prereleases)
+            for s in self._specs
+        )
+
+    def filter(self, iterable, prereleases=None):
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # If we have any specifiers, then we want to wrap our iterable in the
+        # filter method for each one, this will act as a logical AND amongst
+        # each specifier.
+        if self._specs:
+            for spec in self._specs:
+                iterable = spec.filter(iterable, prereleases=bool(prereleases))
+            return iterable
+        # If we do not have any specifiers, then we need to have a rough filter
+        # which will filter out any pre-releases, unless there are no final
+        # releases, and which will filter out LegacyVersion in general.
+        else:
+            filtered = []
+            found_prereleases = []
+
+            for item in iterable:
+                # Ensure that we some kind of Version class for this item.
+                if not isinstance(item, (LegacyVersion, Version)):
+                    parsed_version = parse(item)
+                else:
+                    parsed_version = item
+
+                # Filter out any item which is parsed as a LegacyVersion
+                if isinstance(parsed_version, LegacyVersion):
+                    continue
+
+                # Store any item which is a pre-release for later unless we've
+                # already found a final version or we are accepting prereleases
+                if parsed_version.is_prerelease and not prereleases:
+                    if not filtered:
+                        found_prereleases.append(item)
+                else:
+                    filtered.append(item)
+
+            # If we've found no items except for pre-releases, then we'll go
+            # ahead and use the pre-releases
+            if not filtered and found_prereleases and prereleases is None:
+                return found_prereleases
+
+            return filtered
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py
new file mode 100644
index 0000000..942387c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import re
+
+
+_canonicalize_regex = re.compile(r"[-_.]+")
+
+
+def canonicalize_name(name):
+    # This is taken from PEP 503.
+    return _canonicalize_regex.sub("-", name).lower()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/packaging/version.py b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/version.py
new file mode 100644
index 0000000..83b5ee8
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/packaging/version.py
@@ -0,0 +1,393 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import collections
+import itertools
+import re
+
+from ._structures import Infinity
+
+
+__all__ = [
+    "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"
+]
+
+
+_Version = collections.namedtuple(
+    "_Version",
+    ["epoch", "release", "dev", "pre", "post", "local"],
+)
+
+
+def parse(version):
+    """
+    Parse the given version string and return either a :class:`Version` object
+    or a :class:`LegacyVersion` object depending on if the given version is
+    a valid PEP 440 version or a legacy version.
+    """
+    try:
+        return Version(version)
+    except InvalidVersion:
+        return LegacyVersion(version)
+
+
+class InvalidVersion(ValueError):
+    """
+    An invalid version was found, users should refer to PEP 440.
+    """
+
+
+class _BaseVersion(object):
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class LegacyVersion(_BaseVersion):
+
+    def __init__(self, version):
+        self._version = str(version)
+        self._key = _legacy_cmpkey(self._version)
+
+    def __str__(self):
+        return self._version
+
+    def __repr__(self):
+        return "<LegacyVersion({0})>".format(repr(str(self)))
+
+    @property
+    def public(self):
+        return self._version
+
+    @property
+    def base_version(self):
+        return self._version
+
+    @property
+    def local(self):
+        return None
+
+    @property
+    def is_prerelease(self):
+        return False
+
+    @property
+    def is_postrelease(self):
+        return False
+
+
+_legacy_version_component_re = re.compile(
+    r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE,
+)
+
+_legacy_version_replacement_map = {
+    "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@",
+}
+
+
+def _parse_version_parts(s):
+    for part in _legacy_version_component_re.split(s):
+        part = _legacy_version_replacement_map.get(part, part)
+
+        if not part or part == ".":
+            continue
+
+        if part[:1] in "0123456789":
+            # pad for numeric comparison
+            yield part.zfill(8)
+        else:
+            yield "*" + part
+
+    # ensure that alpha/beta/candidate are before final
+    yield "*final"
+
+
+def _legacy_cmpkey(version):
+    # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
+    # greater than or equal to 0. This will effectively put the LegacyVersion,
+    # which uses the defacto standard originally implemented by setuptools,
+    # as before all PEP 440 versions.
+    epoch = -1
+
+    # This scheme is taken from pkg_resources.parse_version setuptools prior to
+    # it's adoption of the packaging library.
+    parts = []
+    for part in _parse_version_parts(version.lower()):
+        if part.startswith("*"):
+            # remove "-" before a prerelease tag
+            if part < "*final":
+                while parts and parts[-1] == "*final-":
+                    parts.pop()
+
+            # remove trailing zeros from each series of numeric parts
+            while parts and parts[-1] == "00000000":
+                parts.pop()
+
+        parts.append(part)
+    parts = tuple(parts)
+
+    return epoch, parts
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P<epoch>[0-9]+)!)?                           # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P<pre>                                          # pre-release
+            [-_\.]?
+            (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P<pre_n>[0-9]+)?
+        )?
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?P<post_l>post|rev|r)
+                [-_\.]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?
+        (?P<dev>                                          # dev release
+            [-_\.]?
+            (?P<dev_l>dev)
+            [-_\.]?
+            (?P<dev_n>[0-9]+)?
+        )?
+    )
+    (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(
+        r"^\s*" + VERSION_PATTERN + r"\s*$",
+        re.VERBOSE | re.IGNORECASE,
+    )
+
+    def __init__(self, version):
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion("Invalid version: '{0}'".format(version))
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(
+                match.group("pre_l"),
+                match.group("pre_n"),
+            ),
+            post=_parse_letter_version(
+                match.group("post_l"),
+                match.group("post_n1") or match.group("post_n2"),
+            ),
+            dev=_parse_letter_version(
+                match.group("dev_l"),
+                match.group("dev_n"),
+            ),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self):
+        return "<Version({0})>".format(repr(str(self)))
+
+    def __str__(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        # Pre-release
+        if self._version.pre is not None:
+            parts.append("".join(str(x) for x in self._version.pre))
+
+        # Post-release
+        if self._version.post is not None:
+            parts.append(".post{0}".format(self._version.post[1]))
+
+        # Development release
+        if self._version.dev is not None:
+            parts.append(".dev{0}".format(self._version.dev[1]))
+
+        # Local version segment
+        if self._version.local is not None:
+            parts.append(
+                "+{0}".format(".".join(str(x) for x in self._version.local))
+            )
+
+        return "".join(parts)
+
+    @property
+    def public(self):
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        return "".join(parts)
+
+    @property
+    def local(self):
+        version_string = str(self)
+        if "+" in version_string:
+            return version_string.split("+", 1)[1]
+
+    @property
+    def is_prerelease(self):
+        return bool(self._version.dev or self._version.pre)
+
+    @property
+    def is_postrelease(self):
+        return bool(self._version.post)
+
+
+def _parse_letter_version(letter, number):
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+
+_local_version_seperators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local):
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_seperators.split(local)
+        )
+
+
+def _cmpkey(epoch, release, pre, post, dev, local):
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    release = tuple(
+        reversed(list(
+            itertools.dropwhile(
+                lambda x: x == 0,
+                reversed(release),
+            )
+        ))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        pre = -Infinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        pre = Infinity
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        post = -Infinity
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        dev = Infinity
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        local = -Infinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        local = tuple(
+            (i, "") if isinstance(i, int) else (-Infinity, i)
+            for i in local
+        )
+
+    return epoch, release, pre, post, dev, local
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py
new file mode 100644
index 0000000..b8e598b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py
@@ -0,0 +1,3052 @@
+# coding: utf-8
+"""
+Package resource API
+--------------------
+
+A resource is a logical file contained within a package, or a logical
+subdirectory thereof.  The package resource API expects resource names
+to have their path parts separated with ``/``, *not* whatever the local
+path separator is.  Do not use os.path operations to manipulate resource
+names being passed into the API.
+
+The package resource API is designed to work with normal filesystem packages,
+.egg files, and unpacked .egg files.  It can also work in a limited way with
+.zip files and with custom PEP 302 loaders that support the ``get_data()``
+method.
+"""
+
+from __future__ import absolute_import
+
+import sys
+import os
+import io
+import time
+import re
+import types
+import zipfile
+import zipimport
+import warnings
+import stat
+import functools
+import pkgutil
+import operator
+import platform
+import collections
+import plistlib
+import email.parser
+import tempfile
+import textwrap
+import itertools
+from pkgutil import get_importer
+
+try:
+    import _imp
+except ImportError:
+    # Python 3.2 compatibility
+    import imp as _imp
+
+from pip._vendor import six
+from pip._vendor.six.moves import urllib, map, filter
+
+# capture these to bypass sandboxing
+from os import utime
+try:
+    from os import mkdir, rename, unlink
+    WRITE_SUPPORT = True
+except ImportError:
+    # no write support, probably under GAE
+    WRITE_SUPPORT = False
+
+from os import open as os_open
+from os.path import isdir, split
+
+try:
+    import importlib.machinery as importlib_machinery
+    # access attribute to force import under delayed import mechanisms.
+    importlib_machinery.__name__
+except ImportError:
+    importlib_machinery = None
+
+from pip._vendor import appdirs
+from pip._vendor import packaging
+__import__('pip._vendor.packaging.version')
+__import__('pip._vendor.packaging.specifiers')
+__import__('pip._vendor.packaging.requirements')
+__import__('pip._vendor.packaging.markers')
+
+
+if (3, 0) < sys.version_info < (3, 3):
+    msg = (
+        "Support for Python 3.0-3.2 has been dropped. Future versions "
+        "will fail here."
+    )
+    warnings.warn(msg)
+
+# declare some globals that will be defined later to
+# satisfy the linters.
+require = None
+working_set = None
+
+
+class PEP440Warning(RuntimeWarning):
+    """
+    Used when there is an issue with a version or specifier not complying with
+    PEP 440.
+    """
+
+
+class _SetuptoolsVersionMixin(object):
+    def __hash__(self):
+        return super(_SetuptoolsVersionMixin, self).__hash__()
+
+    def __lt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) < other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__lt__(other)
+
+    def __le__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) <= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__le__(other)
+
+    def __eq__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) == other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__eq__(other)
+
+    def __ge__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) >= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ge__(other)
+
+    def __gt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) > other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__gt__(other)
+
+    def __ne__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) != other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ne__(other)
+
+    def __getitem__(self, key):
+        return tuple(self)[key]
+
+    def __iter__(self):
+        component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
+        replace = {
+            'pre': 'c',
+            'preview': 'c',
+            '-': 'final-',
+            'rc': 'c',
+            'dev': '@',
+        }.get
+
+        def _parse_version_parts(s):
+            for part in component_re.split(s):
+                part = replace(part, part)
+                if not part or part == '.':
+                    continue
+                if part[:1] in '0123456789':
+                    # pad for numeric comparison
+                    yield part.zfill(8)
+                else:
+                    yield '*' + part
+
+            # ensure that alpha/beta/candidate are before final
+            yield '*final'
+
+        def old_parse_version(s):
+            parts = []
+            for part in _parse_version_parts(s.lower()):
+                if part.startswith('*'):
+                    # remove '-' before a prerelease tag
+                    if part < '*final':
+                        while parts and parts[-1] == '*final-':
+                            parts.pop()
+                    # remove trailing zeros from each series of numeric parts
+                    while parts and parts[-1] == '00000000':
+                        parts.pop()
+                parts.append(part)
+            return tuple(parts)
+
+        # Warn for use of this function
+        warnings.warn(
+            "You have iterated over the result of "
+            "pkg_resources.parse_version. This is a legacy behavior which is "
+            "inconsistent with the new version class introduced in setuptools "
+            "8.0. In most cases, conversion to a tuple is unnecessary. For "
+            "comparison of versions, sort the Version instances directly. If "
+            "you have another use case requiring the tuple, please file a "
+            "bug with the setuptools project describing that need.",
+            RuntimeWarning,
+            stacklevel=1,
+        )
+
+        for part in old_parse_version(str(self)):
+            yield part
+
+
+class SetuptoolsVersion(_SetuptoolsVersionMixin, packaging.version.Version):
+    pass
+
+
+class SetuptoolsLegacyVersion(_SetuptoolsVersionMixin,
+                              packaging.version.LegacyVersion):
+    pass
+
+
+def parse_version(v):
+    try:
+        return SetuptoolsVersion(v)
+    except packaging.version.InvalidVersion:
+        return SetuptoolsLegacyVersion(v)
+
+
+_state_vars = {}
+
+
+def _declare_state(vartype, **kw):
+    globals().update(kw)
+    _state_vars.update(dict.fromkeys(kw, vartype))
+
+
+def __getstate__():
+    state = {}
+    g = globals()
+    for k, v in _state_vars.items():
+        state[k] = g['_sget_' + v](g[k])
+    return state
+
+
+def __setstate__(state):
+    g = globals()
+    for k, v in state.items():
+        g['_sset_' + _state_vars[k]](k, g[k], v)
+    return state
+
+
+def _sget_dict(val):
+    return val.copy()
+
+
+def _sset_dict(key, ob, state):
+    ob.clear()
+    ob.update(state)
+
+
+def _sget_object(val):
+    return val.__getstate__()
+
+
+def _sset_object(key, ob, state):
+    ob.__setstate__(state)
+
+
+_sget_none = _sset_none = lambda *args: None
+
+
+def get_supported_platform():
+    """Return this platform's maximum compatible version.
+
+    distutils.util.get_platform() normally reports the minimum version
+    of Mac OS X that would be required to *use* extensions produced by
+    distutils.  But what we want when checking compatibility is to know the
+    version of Mac OS X that we are *running*.  To allow usage of packages that
+    explicitly require a newer version of Mac OS X, we must also know the
+    current version of the OS.
+
+    If this condition occurs for any other platform with a version in its
+    platform strings, this function should be extended accordingly.
+    """
+    plat = get_build_platform()
+    m = macosVersionString.match(plat)
+    if m is not None and sys.platform == "darwin":
+        try:
+            plat = 'macosx-%s-%s' % ('.'.join(_macosx_vers()[:2]), m.group(3))
+        except ValueError:
+            # not Mac OS X
+            pass
+    return plat
+
+
+__all__ = [
+    # Basic resource access and distribution/entry point discovery
+    'require', 'run_script', 'get_provider', 'get_distribution',
+    'load_entry_point', 'get_entry_map', 'get_entry_info',
+    'iter_entry_points',
+    'resource_string', 'resource_stream', 'resource_filename',
+    'resource_listdir', 'resource_exists', 'resource_isdir',
+
+    # Environmental control
+    'declare_namespace', 'working_set', 'add_activation_listener',
+    'find_distributions', 'set_extraction_path', 'cleanup_resources',
+    'get_default_cache',
+
+    # Primary implementation classes
+    'Environment', 'WorkingSet', 'ResourceManager',
+    'Distribution', 'Requirement', 'EntryPoint',
+
+    # Exceptions
+    'ResolutionError', 'VersionConflict', 'DistributionNotFound',
+    'UnknownExtra', 'ExtractionError',
+
+    # Warnings
+    'PEP440Warning',
+
+    # Parsing functions and string utilities
+    'parse_requirements', 'parse_version', 'safe_name', 'safe_version',
+    'get_platform', 'compatible_platforms', 'yield_lines', 'split_sections',
+    'safe_extra', 'to_filename', 'invalid_marker', 'evaluate_marker',
+
+    # filesystem utilities
+    'ensure_directory', 'normalize_path',
+
+    # Distribution "precedence" constants
+    'EGG_DIST', 'BINARY_DIST', 'SOURCE_DIST', 'CHECKOUT_DIST', 'DEVELOP_DIST',
+
+    # "Provider" interfaces, implementations, and registration/lookup APIs
+    'IMetadataProvider', 'IResourceProvider', 'FileMetadata',
+    'PathMetadata', 'EggMetadata', 'EmptyProvider', 'empty_provider',
+    'NullProvider', 'EggProvider', 'DefaultProvider', 'ZipProvider',
+    'register_finder', 'register_namespace_handler', 'register_loader_type',
+    'fixup_namespace_packages', 'get_importer',
+
+    # Deprecated/backward compatibility only
+    'run_main', 'AvailableDistributions',
+]
+
+
+class ResolutionError(Exception):
+    """Abstract base for dependency resolution errors"""
+
+    def __repr__(self):
+        return self.__class__.__name__ + repr(self.args)
+
+
+class VersionConflict(ResolutionError):
+    """
+    An already-installed version conflicts with the requested version.
+
+    Should be initialized with the installed Distribution and the requested
+    Requirement.
+    """
+
+    _template = "{self.dist} is installed but {self.req} is required"
+
+    @property
+    def dist(self):
+        return self.args[0]
+
+    @property
+    def req(self):
+        return self.args[1]
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def with_context(self, required_by):
+        """
+        If required_by is non-empty, return a version of self that is a
+        ContextualVersionConflict.
+        """
+        if not required_by:
+            return self
+        args = self.args + (required_by,)
+        return ContextualVersionConflict(*args)
+
+
+class ContextualVersionConflict(VersionConflict):
+    """
+    A VersionConflict that accepts a third parameter, the set of the
+    requirements that required the installed Distribution.
+    """
+
+    _template = VersionConflict._template + ' by {self.required_by}'
+
+    @property
+    def required_by(self):
+        return self.args[2]
+
+
+class DistributionNotFound(ResolutionError):
+    """A requested distribution was not found"""
+
+    _template = ("The '{self.req}' distribution was not found "
+                 "and is required by {self.requirers_str}")
+
+    @property
+    def req(self):
+        return self.args[0]
+
+    @property
+    def requirers(self):
+        return self.args[1]
+
+    @property
+    def requirers_str(self):
+        if not self.requirers:
+            return 'the application'
+        return ', '.join(self.requirers)
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def __str__(self):
+        return self.report()
+
+
+class UnknownExtra(ResolutionError):
+    """Distribution doesn't have an "extra feature" of the given name"""
+
+
+_provider_factories = {}
+
+PY_MAJOR = sys.version[:3]
+EGG_DIST = 3
+BINARY_DIST = 2
+SOURCE_DIST = 1
+CHECKOUT_DIST = 0
+DEVELOP_DIST = -1
+
+
+def register_loader_type(loader_type, provider_factory):
+    """Register `provider_factory` to make providers for `loader_type`
+
+    `loader_type` is the type or class of a PEP 302 ``module.__loader__``,
+    and `provider_factory` is a function that, passed a *module* object,
+    returns an ``IResourceProvider`` for that module.
+    """
+    _provider_factories[loader_type] = provider_factory
+
+
+def get_provider(moduleOrReq):
+    """Return an IResourceProvider for the named module or requirement"""
+    if isinstance(moduleOrReq, Requirement):
+        return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
+    try:
+        module = sys.modules[moduleOrReq]
+    except KeyError:
+        __import__(moduleOrReq)
+        module = sys.modules[moduleOrReq]
+    loader = getattr(module, '__loader__', None)
+    return _find_adapter(_provider_factories, loader)(module)
+
+
+def _macosx_vers(_cache=[]):
+    if not _cache:
+        version = platform.mac_ver()[0]
+        # fallback for MacPorts
+        if version == '':
+            plist = '/System/Library/CoreServices/SystemVersion.plist'
+            if os.path.exists(plist):
+                if hasattr(plistlib, 'readPlist'):
+                    plist_content = plistlib.readPlist(plist)
+                    if 'ProductVersion' in plist_content:
+                        version = plist_content['ProductVersion']
+
+        _cache.append(version.split('.'))
+    return _cache[0]
+
+
+def _macosx_arch(machine):
+    return {'PowerPC': 'ppc', 'Power_Macintosh': 'ppc'}.get(machine, machine)
+
+
+def get_build_platform():
+    """Return this platform's string for platform-specific distributions
+
+    XXX Currently this is the same as ``distutils.util.get_platform()``, but it
+    needs some hacks for Linux and Mac OS X.
+    """
+    try:
+        # Python 2.7 or >=3.2
+        from sysconfig import get_platform
+    except ImportError:
+        from distutils.util import get_platform
+
+    plat = get_platform()
+    if sys.platform == "darwin" and not plat.startswith('macosx-'):
+        try:
+            version = _macosx_vers()
+            machine = os.uname()[4].replace(" ", "_")
+            return "macosx-%d.%d-%s" % (int(version[0]), int(version[1]),
+                _macosx_arch(machine))
+        except ValueError:
+            # if someone is running a non-Mac darwin system, this will fall
+            # through to the default implementation
+            pass
+    return plat
+
+
+macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)")
+darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)")
+# XXX backward compat
+get_platform = get_build_platform
+
+
+def compatible_platforms(provided, required):
+    """Can code for the `provided` platform run on the `required` platform?
+
+    Returns true if either platform is ``None``, or the platforms are equal.
+
+    XXX Needs compatibility checks for Linux and other unixy OSes.
+    """
+    if provided is None or required is None or provided == required:
+        # easy case
+        return True
+
+    # Mac OS X special cases
+    reqMac = macosVersionString.match(required)
+    if reqMac:
+        provMac = macosVersionString.match(provided)
+
+        # is this a Mac package?
+        if not provMac:
+            # this is backwards compatibility for packages built before
+            # setuptools 0.6. All packages built after this point will
+            # use the new macosx designation.
+            provDarwin = darwinVersionString.match(provided)
+            if provDarwin:
+                dversion = int(provDarwin.group(1))
+                macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2))
+                if dversion == 7 and macosversion >= "10.3" or \
+                        dversion == 8 and macosversion >= "10.4":
+                    return True
+            # egg isn't macosx or legacy darwin
+            return False
+
+        # are they the same major version and machine type?
+        if provMac.group(1) != reqMac.group(1) or \
+                provMac.group(3) != reqMac.group(3):
+            return False
+
+        # is the required OS major update >= the provided one?
+        if int(provMac.group(2)) > int(reqMac.group(2)):
+            return False
+
+        return True
+
+    # XXX Linux and other platforms' special cases should go here
+    return False
+
+
+def run_script(dist_spec, script_name):
+    """Locate distribution `dist_spec` and run its `script_name` script"""
+    ns = sys._getframe(1).f_globals
+    name = ns['__name__']
+    ns.clear()
+    ns['__name__'] = name
+    require(dist_spec)[0].run_script(script_name, ns)
+
+
+# backward compatibility
+run_main = run_script
+
+
+def get_distribution(dist):
+    """Return a current distribution object for a Requirement or string"""
+    if isinstance(dist, six.string_types):
+        dist = Requirement.parse(dist)
+    if isinstance(dist, Requirement):
+        dist = get_provider(dist)
+    if not isinstance(dist, Distribution):
+        raise TypeError("Expected string, Requirement, or Distribution", dist)
+    return dist
+
+
+def load_entry_point(dist, group, name):
+    """Return `name` entry point of `group` for `dist` or raise ImportError"""
+    return get_distribution(dist).load_entry_point(group, name)
+
+
+def get_entry_map(dist, group=None):
+    """Return the entry point map for `group`, or the full entry map"""
+    return get_distribution(dist).get_entry_map(group)
+
+
+def get_entry_info(dist, group, name):
+    """Return the EntryPoint object for `group`+`name`, or ``None``"""
+    return get_distribution(dist).get_entry_info(group, name)
+
+
+class IMetadataProvider:
+    def has_metadata(name):
+        """Does the package's distribution contain the named metadata?"""
+
+    def get_metadata(name):
+        """The named metadata resource as a string"""
+
+    def get_metadata_lines(name):
+        """Yield named metadata resource as list of non-blank non-comment lines
+
+       Leading and trailing whitespace is stripped from each line, and lines
+       with ``#`` as the first non-blank character are omitted."""
+
+    def metadata_isdir(name):
+        """Is the named metadata a directory?  (like ``os.path.isdir()``)"""
+
+    def metadata_listdir(name):
+        """List of metadata names in the directory (like ``os.listdir()``)"""
+
+    def run_script(script_name, namespace):
+        """Execute the named script in the supplied namespace dictionary"""
+
+
+class IResourceProvider(IMetadataProvider):
+    """An object that provides access to package resources"""
+
+    def get_resource_filename(manager, resource_name):
+        """Return a true filesystem path for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_stream(manager, resource_name):
+        """Return a readable file-like object for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_string(manager, resource_name):
+        """Return a string containing the contents of `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def has_resource(resource_name):
+        """Does the package contain the named resource?"""
+
+    def resource_isdir(resource_name):
+        """Is the named resource a directory?  (like ``os.path.isdir()``)"""
+
+    def resource_listdir(resource_name):
+        """List of resource names in the directory (like ``os.listdir()``)"""
+
+
+class WorkingSet(object):
+    """A collection of active distributions on sys.path (or a similar list)"""
+
+    def __init__(self, entries=None):
+        """Create working set from list of path entries (default=sys.path)"""
+        self.entries = []
+        self.entry_keys = {}
+        self.by_key = {}
+        self.callbacks = []
+
+        if entries is None:
+            entries = sys.path
+
+        for entry in entries:
+            self.add_entry(entry)
+
+    @classmethod
+    def _build_master(cls):
+        """
+        Prepare the master working set.
+        """
+        ws = cls()
+        try:
+            from __main__ import __requires__
+        except ImportError:
+            # The main program does not list any requirements
+            return ws
+
+        # ensure the requirements are met
+        try:
+            ws.require(__requires__)
+        except VersionConflict:
+            return cls._build_from_requirements(__requires__)
+
+        return ws
+
+    @classmethod
+    def _build_from_requirements(cls, req_spec):
+        """
+        Build a working set from a requirement spec. Rewrites sys.path.
+        """
+        # try it without defaults already on sys.path
+        # by starting with an empty path
+        ws = cls([])
+        reqs = parse_requirements(req_spec)
+        dists = ws.resolve(reqs, Environment())
+        for dist in dists:
+            ws.add(dist)
+
+        # add any missing entries from sys.path
+        for entry in sys.path:
+            if entry not in ws.entries:
+                ws.add_entry(entry)
+
+        # then copy back to sys.path
+        sys.path[:] = ws.entries
+        return ws
+
+    def add_entry(self, entry):
+        """Add a path item to ``.entries``, finding any distributions on it
+
+        ``find_distributions(entry, True)`` is used to find distributions
+        corresponding to the path entry, and they are added.  `entry` is
+        always appended to ``.entries``, even if it is already present.
+        (This is because ``sys.path`` can contain the same value more than
+        once, and the ``.entries`` of the ``sys.path`` WorkingSet should always
+        equal ``sys.path``.)
+        """
+        self.entry_keys.setdefault(entry, [])
+        self.entries.append(entry)
+        for dist in find_distributions(entry, True):
+            self.add(dist, entry, False)
+
+    def __contains__(self, dist):
+        """True if `dist` is the active distribution for its project"""
+        return self.by_key.get(dist.key) == dist
+
+    def find(self, req):
+        """Find a distribution matching requirement `req`
+
+        If there is an active distribution for the requested project, this
+        returns it as long as it meets the version requirement specified by
+        `req`.  But, if there is an active distribution for the project and it
+        does *not* meet the `req` requirement, ``VersionConflict`` is raised.
+        If there is no active distribution for the requested project, ``None``
+        is returned.
+        """
+        dist = self.by_key.get(req.key)
+        if dist is not None and dist not in req:
+            # XXX add more info
+            raise VersionConflict(dist, req)
+        return dist
+
+    def iter_entry_points(self, group, name=None):
+        """Yield entry point objects from `group` matching `name`
+
+        If `name` is None, yields all entry points in `group` from all
+        distributions in the working set, otherwise only ones matching
+        both `group` and `name` are yielded (in distribution order).
+        """
+        for dist in self:
+            entries = dist.get_entry_map(group)
+            if name is None:
+                for ep in entries.values():
+                    yield ep
+            elif name in entries:
+                yield entries[name]
+
+    def run_script(self, requires, script_name):
+        """Locate distribution for `requires` and run `script_name` script"""
+        ns = sys._getframe(1).f_globals
+        name = ns['__name__']
+        ns.clear()
+        ns['__name__'] = name
+        self.require(requires)[0].run_script(script_name, ns)
+
+    def __iter__(self):
+        """Yield distributions for non-duplicate projects in the working set
+
+        The yield order is the order in which the items' path entries were
+        added to the working set.
+        """
+        seen = {}
+        for item in self.entries:
+            if item not in self.entry_keys:
+                # workaround a cache issue
+                continue
+
+            for key in self.entry_keys[item]:
+                if key not in seen:
+                    seen[key] = 1
+                    yield self.by_key[key]
+
+    def add(self, dist, entry=None, insert=True, replace=False):
+        """Add `dist` to working set, associated with `entry`
+
+        If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
+        On exit from this routine, `entry` is added to the end of the working
+        set's ``.entries`` (if it wasn't already present).
+
+        `dist` is only added to the working set if it's for a project that
+        doesn't already have a distribution in the set, unless `replace=True`.
+        If it's added, any callbacks registered with the ``subscribe()`` method
+        will be called.
+        """
+        if insert:
+            dist.insert_on(self.entries, entry, replace=replace)
+
+        if entry is None:
+            entry = dist.location
+        keys = self.entry_keys.setdefault(entry, [])
+        keys2 = self.entry_keys.setdefault(dist.location, [])
+        if not replace and dist.key in self.by_key:
+            # ignore hidden distros
+            return
+
+        self.by_key[dist.key] = dist
+        if dist.key not in keys:
+            keys.append(dist.key)
+        if dist.key not in keys2:
+            keys2.append(dist.key)
+        self._added_new(dist)
+
+    def resolve(self, requirements, env=None, installer=None,
+            replace_conflicting=False):
+        """List all distributions needed to (recursively) meet `requirements`
+
+        `requirements` must be a sequence of ``Requirement`` objects.  `env`,
+        if supplied, should be an ``Environment`` instance.  If
+        not supplied, it defaults to all distributions available within any
+        entry or distribution in the working set.  `installer`, if supplied,
+        will be invoked with each requirement that cannot be met by an
+        already-installed distribution; it should return a ``Distribution`` or
+        ``None``.
+
+        Unless `replace_conflicting=True`, raises a VersionConflict exception if
+        any requirements are found on the path that have the correct name but
+        the wrong version.  Otherwise, if an `installer` is supplied it will be
+        invoked to obtain the correct version of the requirement and activate
+        it.
+        """
+
+        # set up the stack
+        requirements = list(requirements)[::-1]
+        # set of processed requirements
+        processed = {}
+        # key -> dist
+        best = {}
+        to_activate = []
+
+        req_extras = _ReqExtras()
+
+        # Mapping of requirement to set of distributions that required it;
+        # useful for reporting info about conflicts.
+        required_by = collections.defaultdict(set)
+
+        while requirements:
+            # process dependencies breadth-first
+            req = requirements.pop(0)
+            if req in processed:
+                # Ignore cyclic or redundant dependencies
+                continue
+
+            if not req_extras.markers_pass(req):
+                continue
+
+            dist = best.get(req.key)
+            if dist is None:
+                # Find the best distribution and add it to the map
+                dist = self.by_key.get(req.key)
+                if dist is None or (dist not in req and replace_conflicting):
+                    ws = self
+                    if env is None:
+                        if dist is None:
+                            env = Environment(self.entries)
+                        else:
+                            # Use an empty environment and workingset to avoid
+                            # any further conflicts with the conflicting
+                            # distribution
+                            env = Environment([])
+                            ws = WorkingSet([])
+                    dist = best[req.key] = env.best_match(req, ws, installer)
+                    if dist is None:
+                        requirers = required_by.get(req, None)
+                        raise DistributionNotFound(req, requirers)
+                to_activate.append(dist)
+            if dist not in req:
+                # Oops, the "best" so far conflicts with a dependency
+                dependent_req = required_by[req]
+                raise VersionConflict(dist, req).with_context(dependent_req)
+
+            # push the new requirements onto the stack
+            new_requirements = dist.requires(req.extras)[::-1]
+            requirements.extend(new_requirements)
+
+            # Register the new requirements needed by req
+            for new_requirement in new_requirements:
+                required_by[new_requirement].add(req.project_name)
+                req_extras[new_requirement] = req.extras
+
+            processed[req] = True
+
+        # return list of distros to activate
+        return to_activate
+
+    def find_plugins(self, plugin_env, full_env=None, installer=None,
+            fallback=True):
+        """Find all activatable distributions in `plugin_env`
+
+        Example usage::
+
+            distributions, errors = working_set.find_plugins(
+                Environment(plugin_dirlist)
+            )
+            # add plugins+libs to sys.path
+            map(working_set.add, distributions)
+            # display errors
+            print('Could not load', errors)
+
+        The `plugin_env` should be an ``Environment`` instance that contains
+        only distributions that are in the project's "plugin directory" or
+        directories. The `full_env`, if supplied, should be an ``Environment``
+        contains all currently-available distributions.  If `full_env` is not
+        supplied, one is created automatically from the ``WorkingSet`` this
+        method is called on, which will typically mean that every directory on
+        ``sys.path`` will be scanned for distributions.
+
+        `installer` is a standard installer callback as used by the
+        ``resolve()`` method. The `fallback` flag indicates whether we should
+        attempt to resolve older versions of a plugin if the newest version
+        cannot be resolved.
+
+        This method returns a 2-tuple: (`distributions`, `error_info`), where
+        `distributions` is a list of the distributions found in `plugin_env`
+        that were loadable, along with any other distributions that are needed
+        to resolve their dependencies.  `error_info` is a dictionary mapping
+        unloadable plugin distributions to an exception instance describing the
+        error that occurred. Usually this will be a ``DistributionNotFound`` or
+        ``VersionConflict`` instance.
+        """
+
+        plugin_projects = list(plugin_env)
+        # scan project names in alphabetic order
+        plugin_projects.sort()
+
+        error_info = {}
+        distributions = {}
+
+        if full_env is None:
+            env = Environment(self.entries)
+            env += plugin_env
+        else:
+            env = full_env + plugin_env
+
+        shadow_set = self.__class__([])
+        # put all our entries in shadow_set
+        list(map(shadow_set.add, self))
+
+        for project_name in plugin_projects:
+
+            for dist in plugin_env[project_name]:
+
+                req = [dist.as_requirement()]
+
+                try:
+                    resolvees = shadow_set.resolve(req, env, installer)
+
+                except ResolutionError as v:
+                    # save error info
+                    error_info[dist] = v
+                    if fallback:
+                        # try the next older version of project
+                        continue
+                    else:
+                        # give up on this project, keep going
+                        break
+
+                else:
+                    list(map(shadow_set.add, resolvees))
+                    distributions.update(dict.fromkeys(resolvees))
+
+                    # success, no need to try any more versions of this project
+                    break
+
+        distributions = list(distributions)
+        distributions.sort()
+
+        return distributions, error_info
+
+    def require(self, *requirements):
+        """Ensure that distributions matching `requirements` are activated
+
+        `requirements` must be a string or a (possibly-nested) sequence
+        thereof, specifying the distributions and versions required.  The
+        return value is a sequence of the distributions that needed to be
+        activated to fulfill the requirements; all relevant distributions are
+        included, even if they were already activated in this working set.
+        """
+        needed = self.resolve(parse_requirements(requirements))
+
+        for dist in needed:
+            self.add(dist)
+
+        return needed
+
+    def subscribe(self, callback, existing=True):
+        """Invoke `callback` for all distributions
+
+        If `existing=True` (default),
+        call on all existing ones, as well.
+        """
+        if callback in self.callbacks:
+            return
+        self.callbacks.append(callback)
+        if not existing:
+            return
+        for dist in self:
+            callback(dist)
+
+    def _added_new(self, dist):
+        for callback in self.callbacks:
+            callback(dist)
+
+    def __getstate__(self):
+        return (
+            self.entries[:], self.entry_keys.copy(), self.by_key.copy(),
+            self.callbacks[:]
+        )
+
+    def __setstate__(self, e_k_b_c):
+        entries, keys, by_key, callbacks = e_k_b_c
+        self.entries = entries[:]
+        self.entry_keys = keys.copy()
+        self.by_key = by_key.copy()
+        self.callbacks = callbacks[:]
+
+
+class _ReqExtras(dict):
+    """
+    Map each requirement to the extras that demanded it.
+    """
+
+    def markers_pass(self, req):
+        """
+        Evaluate markers for req against each extra that
+        demanded it.
+
+        Return False if the req has a marker and fails
+        evaluation. Otherwise, return True.
+        """
+        extra_evals = (
+            req.marker.evaluate({'extra': extra})
+            for extra in self.get(req, ()) + (None,)
+        )
+        return not req.marker or any(extra_evals)
+
+
+class Environment(object):
+    """Searchable snapshot of distributions on a search path"""
+
+    def __init__(self, search_path=None, platform=get_supported_platform(),
+            python=PY_MAJOR):
+        """Snapshot distributions available on a search path
+
+        Any distributions found on `search_path` are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.
+
+        `platform` is an optional string specifying the name of the platform
+        that platform-specific distributions must be compatible with.  If
+        unspecified, it defaults to the current platform.  `python` is an
+        optional string naming the desired version of Python (e.g. ``'3.3'``);
+        it defaults to the current version.
+
+        You may explicitly set `platform` (and/or `python`) to ``None`` if you
+        wish to map *all* distributions, not just those compatible with the
+        running platform or Python version.
+        """
+        self._distmap = {}
+        self.platform = platform
+        self.python = python
+        self.scan(search_path)
+
+    def can_add(self, dist):
+        """Is distribution `dist` acceptable for this environment?
+
+        The distribution must match the platform and python version
+        requirements specified when this environment was created, or False
+        is returned.
+        """
+        return (self.python is None or dist.py_version is None
+            or dist.py_version == self.python) \
+            and compatible_platforms(dist.platform, self.platform)
+
+    def remove(self, dist):
+        """Remove `dist` from the environment"""
+        self._distmap[dist.key].remove(dist)
+
+    def scan(self, search_path=None):
+        """Scan `search_path` for distributions usable in this environment
+
+        Any distributions found are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.  Only distributions conforming to
+        the platform/python version defined at initialization are added.
+        """
+        if search_path is None:
+            search_path = sys.path
+
+        for item in search_path:
+            for dist in find_distributions(item):
+                self.add(dist)
+
+    def __getitem__(self, project_name):
+        """Return a newest-to-oldest list of distributions for `project_name`
+
+        Uses case-insensitive `project_name` comparison, assuming all the
+        project's distributions use their project's name converted to all
+        lowercase as their key.
+
+        """
+        distribution_key = project_name.lower()
+        return self._distmap.get(distribution_key, [])
+
+    def add(self, dist):
+        """Add `dist` if we ``can_add()`` it and it has not already been added
+        """
+        if self.can_add(dist) and dist.has_version():
+            dists = self._distmap.setdefault(dist.key, [])
+            if dist not in dists:
+                dists.append(dist)
+                dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
+
+    def best_match(self, req, working_set, installer=None):
+        """Find distribution best matching `req` and usable on `working_set`
+
+        This calls the ``find(req)`` method of the `working_set` to see if a
+        suitable distribution is already active.  (This may raise
+        ``VersionConflict`` if an unsuitable version of the project is already
+        active in the specified `working_set`.)  If a suitable distribution
+        isn't active, this method returns the newest distribution in the
+        environment that meets the ``Requirement`` in `req`.  If no suitable
+        distribution is found, and `installer` is supplied, then the result of
+        calling the environment's ``obtain(req, installer)`` method will be
+        returned.
+        """
+        dist = working_set.find(req)
+        if dist is not None:
+            return dist
+        for dist in self[req.key]:
+            if dist in req:
+                return dist
+        # try to download/install
+        return self.obtain(req, installer)
+
+    def obtain(self, requirement, installer=None):
+        """Obtain a distribution matching `requirement` (e.g. via download)
+
+        Obtain a distro that matches requirement (e.g. via download).  In the
+        base ``Environment`` class, this routine just returns
+        ``installer(requirement)``, unless `installer` is None, in which case
+        None is returned instead.  This method is a hook that allows subclasses
+        to attempt other ways of obtaining a distribution before falling back
+        to the `installer` argument."""
+        if installer is not None:
+            return installer(requirement)
+
+    def __iter__(self):
+        """Yield the unique project names of the available distributions"""
+        for key in self._distmap.keys():
+            if self[key]:
+                yield key
+
+    def __iadd__(self, other):
+        """In-place addition of a distribution or environment"""
+        if isinstance(other, Distribution):
+            self.add(other)
+        elif isinstance(other, Environment):
+            for project in other:
+                for dist in other[project]:
+                    self.add(dist)
+        else:
+            raise TypeError("Can't add %r to environment" % (other,))
+        return self
+
+    def __add__(self, other):
+        """Add an environment or distribution to an environment"""
+        new = self.__class__([], platform=None, python=None)
+        for env in self, other:
+            new += env
+        return new
+
+
+# XXX backward compatibility
+AvailableDistributions = Environment
+
+
+class ExtractionError(RuntimeError):
+    """An error occurred extracting a resource
+
+    The following attributes are available from instances of this exception:
+
+    manager
+        The resource manager that raised this exception
+
+    cache_path
+        The base directory for resource extraction
+
+    original_error
+        The exception instance that caused extraction to fail
+    """
+
+
+class ResourceManager:
+    """Manage resource extraction and packages"""
+    extraction_path = None
+
+    def __init__(self):
+        self.cached_files = {}
+
+    def resource_exists(self, package_or_requirement, resource_name):
+        """Does the named resource exist?"""
+        return get_provider(package_or_requirement).has_resource(resource_name)
+
+    def resource_isdir(self, package_or_requirement, resource_name):
+        """Is the named resource an existing directory?"""
+        return get_provider(package_or_requirement).resource_isdir(
+            resource_name
+        )
+
+    def resource_filename(self, package_or_requirement, resource_name):
+        """Return a true filesystem path for specified resource"""
+        return get_provider(package_or_requirement).get_resource_filename(
+            self, resource_name
+        )
+
+    def resource_stream(self, package_or_requirement, resource_name):
+        """Return a readable file-like object for specified resource"""
+        return get_provider(package_or_requirement).get_resource_stream(
+            self, resource_name
+        )
+
+    def resource_string(self, package_or_requirement, resource_name):
+        """Return specified resource as a string"""
+        return get_provider(package_or_requirement).get_resource_string(
+            self, resource_name
+        )
+
+    def resource_listdir(self, package_or_requirement, resource_name):
+        """List the contents of the named resource directory"""
+        return get_provider(package_or_requirement).resource_listdir(
+            resource_name
+        )
+
+    def extraction_error(self):
+        """Give an error message for problems extracting file(s)"""
+
+        old_exc = sys.exc_info()[1]
+        cache_path = self.extraction_path or get_default_cache()
+
+        tmpl = textwrap.dedent("""
+            Can't extract file(s) to egg cache
+
+            The following error occurred while trying to extract file(s) to the Python egg
+            cache:
+
+              {old_exc}
+
+            The Python egg cache directory is currently set to:
+
+              {cache_path}
+
+            Perhaps your account does not have write access to this directory?  You can
+            change the cache directory by setting the PYTHON_EGG_CACHE environment
+            variable to point to an accessible directory.
+            """).lstrip()
+        err = ExtractionError(tmpl.format(**locals()))
+        err.manager = self
+        err.cache_path = cache_path
+        err.original_error = old_exc
+        raise err
+
+    def get_cache_path(self, archive_name, names=()):
+        """Return absolute location in cache for `archive_name` and `names`
+
+        The parent directory of the resulting path will be created if it does
+        not already exist.  `archive_name` should be the base filename of the
+        enclosing egg (which may not be the name of the enclosing zipfile!),
+        including its ".egg" extension.  `names`, if provided, should be a
+        sequence of path name parts "under" the egg's extraction location.
+
+        This method should only be called by resource providers that need to
+        obtain an extraction location, and only for names they intend to
+        extract, as it tracks the generated names for possible cleanup later.
+        """
+        extract_path = self.extraction_path or get_default_cache()
+        target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
+        try:
+            _bypass_ensure_directory(target_path)
+        except:
+            self.extraction_error()
+
+        self._warn_unsafe_extraction_path(extract_path)
+
+        self.cached_files[target_path] = 1
+        return target_path
+
+    @staticmethod
+    def _warn_unsafe_extraction_path(path):
+        """
+        If the default extraction path is overridden and set to an insecure
+        location, such as /tmp, it opens up an opportunity for an attacker to
+        replace an extracted file with an unauthorized payload. Warn the user
+        if a known insecure location is used.
+
+        See Distribute #375 for more details.
+        """
+        if os.name == 'nt' and not path.startswith(os.environ['windir']):
+            # On Windows, permissions are generally restrictive by default
+            #  and temp directories are not writable by other users, so
+            #  bypass the warning.
+            return
+        mode = os.stat(path).st_mode
+        if mode & stat.S_IWOTH or mode & stat.S_IWGRP:
+            msg = ("%s is writable by group/others and vulnerable to attack "
+                "when "
+                "used with get_resource_filename. Consider a more secure "
+                "location (set with .set_extraction_path or the "
+                "PYTHON_EGG_CACHE environment variable)." % path)
+            warnings.warn(msg, UserWarning)
+
+    def postprocess(self, tempname, filename):
+        """Perform any platform-specific postprocessing of `tempname`
+
+        This is where Mac header rewrites should be done; other platforms don't
+        have anything special they should do.
+
+        Resource providers should call this method ONLY after successfully
+        extracting a compressed resource.  They must NOT call it on resources
+        that are already in the filesystem.
+
+        `tempname` is the current (temporary) name of the file, and `filename`
+        is the name it will be renamed to by the caller after this routine
+        returns.
+        """
+
+        if os.name == 'posix':
+            # Make the resource executable
+            mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777
+            os.chmod(tempname, mode)
+
+    def set_extraction_path(self, path):
+        """Set the base path where resources will be extracted to, if needed.
+
+        If you do not call this routine before any extractions take place, the
+        path defaults to the return value of ``get_default_cache()``.  (Which
+        is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
+        platform-specific fallbacks.  See that routine's documentation for more
+        details.)
+
+        Resources are extracted to subdirectories of this path based upon
+        information given by the ``IResourceProvider``.  You may set this to a
+        temporary directory, but then you must call ``cleanup_resources()`` to
+        delete the extracted files when done.  There is no guarantee that
+        ``cleanup_resources()`` will be able to remove all extracted files.
+
+        (Note: you may not change the extraction path for a given resource
+        manager once resources have been extracted, unless you first call
+        ``cleanup_resources()``.)
+        """
+        if self.cached_files:
+            raise ValueError(
+                "Can't change extraction path, files already extracted"
+            )
+
+        self.extraction_path = path
+
+    def cleanup_resources(self, force=False):
+        """
+        Delete all extracted resource files and directories, returning a list
+        of the file and directory names that could not be successfully removed.
+        This function does not have any concurrency protection, so it should
+        generally only be called when the extraction path is a temporary
+        directory exclusive to a single process.  This method is not
+        automatically called; you must call it explicitly or register it as an
+        ``atexit`` function if you wish to ensure cleanup of a temporary
+        directory used for extractions.
+        """
+        # XXX
+
+
+def get_default_cache():
+    """
+    Return the ``PYTHON_EGG_CACHE`` environment variable
+    or a platform-relevant user cache dir for an app
+    named "Python-Eggs".
+    """
+    return (
+        os.environ.get('PYTHON_EGG_CACHE')
+        or appdirs.user_cache_dir(appname='Python-Eggs')
+    )
+
+
+def safe_name(name):
+    """Convert an arbitrary string to a standard distribution name
+
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub('[^A-Za-z0-9.]+', '-', name)
+
+
+def safe_version(version):
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(packaging.version.Version(version))
+    except packaging.version.InvalidVersion:
+        version = version.replace(' ', '.')
+        return re.sub('[^A-Za-z0-9.]+', '-', version)
+
+
+def safe_extra(extra):
+    """Convert an arbitrary string to a standard 'extra' name
+
+    Any runs of non-alphanumeric characters are replaced with a single '_',
+    and the result is always lowercased.
+    """
+    return re.sub('[^A-Za-z0-9.-]+', '_', extra).lower()
+
+
+def to_filename(name):
+    """Convert a project or version name to its filename-escaped form
+
+    Any '-' characters are currently replaced with '_'.
+    """
+    return name.replace('-', '_')
+
+
+def invalid_marker(text):
+    """
+    Validate text as a PEP 508 environment marker; return an exception
+    if invalid or False otherwise.
+    """
+    try:
+        evaluate_marker(text)
+    except SyntaxError as e:
+        e.filename = None
+        e.lineno = None
+        return e
+    return False
+
+
+def evaluate_marker(text, extra=None):
+    """
+    Evaluate a PEP 508 environment marker.
+    Return a boolean indicating the marker result in this environment.
+    Raise SyntaxError if marker is invalid.
+
+    This implementation uses the 'pyparsing' module.
+    """
+    try:
+        marker = packaging.markers.Marker(text)
+        return marker.evaluate()
+    except packaging.markers.InvalidMarker as e:
+        raise SyntaxError(e)
+
+
+class NullProvider:
+    """Try to implement resources and metadata for arbitrary PEP 302 loaders"""
+
+    egg_name = None
+    egg_info = None
+    loader = None
+
+    def __init__(self, module):
+        self.loader = getattr(module, '__loader__', None)
+        self.module_path = os.path.dirname(getattr(module, '__file__', ''))
+
+    def get_resource_filename(self, manager, resource_name):
+        return self._fn(self.module_path, resource_name)
+
+    def get_resource_stream(self, manager, resource_name):
+        return io.BytesIO(self.get_resource_string(manager, resource_name))
+
+    def get_resource_string(self, manager, resource_name):
+        return self._get(self._fn(self.module_path, resource_name))
+
+    def has_resource(self, resource_name):
+        return self._has(self._fn(self.module_path, resource_name))
+
+    def has_metadata(self, name):
+        return self.egg_info and self._has(self._fn(self.egg_info, name))
+
+    def get_metadata(self, name):
+        if not self.egg_info:
+            return ""
+        value = self._get(self._fn(self.egg_info, name))
+        return value.decode('utf-8') if six.PY3 else value
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+    def resource_isdir(self, resource_name):
+        return self._isdir(self._fn(self.module_path, resource_name))
+
+    def metadata_isdir(self, name):
+        return self.egg_info and self._isdir(self._fn(self.egg_info, name))
+
+    def resource_listdir(self, resource_name):
+        return self._listdir(self._fn(self.module_path, resource_name))
+
+    def metadata_listdir(self, name):
+        if self.egg_info:
+            return self._listdir(self._fn(self.egg_info, name))
+        return []
+
+    def run_script(self, script_name, namespace):
+        script = 'scripts/' + script_name
+        if not self.has_metadata(script):
+            raise ResolutionError("No script named %r" % script_name)
+        script_text = self.get_metadata(script).replace('\r\n', '\n')
+        script_text = script_text.replace('\r', '\n')
+        script_filename = self._fn(self.egg_info, script)
+        namespace['__file__'] = script_filename
+        if os.path.exists(script_filename):
+            source = open(script_filename).read()
+            code = compile(source, script_filename, 'exec')
+            exec(code, namespace, namespace)
+        else:
+            from linecache import cache
+            cache[script_filename] = (
+                len(script_text), 0, script_text.split('\n'), script_filename
+            )
+            script_code = compile(script_text, script_filename, 'exec')
+            exec(script_code, namespace, namespace)
+
+    def _has(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _isdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _listdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _fn(self, base, resource_name):
+        if resource_name:
+            return os.path.join(base, *resource_name.split('/'))
+        return base
+
+    def _get(self, path):
+        if hasattr(self.loader, 'get_data'):
+            return self.loader.get_data(path)
+        raise NotImplementedError(
+            "Can't perform this operation for loaders without 'get_data()'"
+        )
+
+
+register_loader_type(object, NullProvider)
+
+
+class EggProvider(NullProvider):
+    """Provider based on a virtual filesystem"""
+
+    def __init__(self, module):
+        NullProvider.__init__(self, module)
+        self._setup_prefix()
+
+    def _setup_prefix(self):
+        # we assume here that our metadata may be nested inside a "basket"
+        # of multiple eggs; that's why we use module_path instead of .archive
+        path = self.module_path
+        old = None
+        while path != old:
+            if _is_unpacked_egg(path):
+                self.egg_name = os.path.basename(path)
+                self.egg_info = os.path.join(path, 'EGG-INFO')
+                self.egg_root = path
+                break
+            old = path
+            path, base = os.path.split(path)
+
+
+class DefaultProvider(EggProvider):
+    """Provides access to package resources in the filesystem"""
+
+    def _has(self, path):
+        return os.path.exists(path)
+
+    def _isdir(self, path):
+        return os.path.isdir(path)
+
+    def _listdir(self, path):
+        return os.listdir(path)
+
+    def get_resource_stream(self, manager, resource_name):
+        return open(self._fn(self.module_path, resource_name), 'rb')
+
+    def _get(self, path):
+        with open(path, 'rb') as stream:
+            return stream.read()
+
+    @classmethod
+    def _register(cls):
+        loader_cls = getattr(importlib_machinery, 'SourceFileLoader',
+            type(None))
+        register_loader_type(loader_cls, cls)
+
+
+DefaultProvider._register()
+
+
+class EmptyProvider(NullProvider):
+    """Provider that returns nothing for all requests"""
+
+    _isdir = _has = lambda self, path: False
+    _get = lambda self, path: ''
+    _listdir = lambda self, path: []
+    module_path = None
+
+    def __init__(self):
+        pass
+
+
+empty_provider = EmptyProvider()
+
+
+class ZipManifests(dict):
+    """
+    zip manifest builder
+    """
+
+    @classmethod
+    def build(cls, path):
+        """
+        Build a dictionary similar to the zipimport directory
+        caches, except instead of tuples, store ZipInfo objects.
+
+        Use a platform-specific path separator (os.sep) for the path keys
+        for compatibility with pypy on Windows.
+        """
+        with ContextualZipFile(path) as zfile:
+            items = (
+                (
+                    name.replace('/', os.sep),
+                    zfile.getinfo(name),
+                )
+                for name in zfile.namelist()
+            )
+            return dict(items)
+
+    load = build
+
+
+class MemoizedZipManifests(ZipManifests):
+    """
+    Memoized zipfile manifests.
+    """
+    manifest_mod = collections.namedtuple('manifest_mod', 'manifest mtime')
+
+    def load(self, path):
+        """
+        Load a manifest at path or return a suitable manifest already loaded.
+        """
+        path = os.path.normpath(path)
+        mtime = os.stat(path).st_mtime
+
+        if path not in self or self[path].mtime != mtime:
+            manifest = self.build(path)
+            self[path] = self.manifest_mod(manifest, mtime)
+
+        return self[path].manifest
+
+
+class ContextualZipFile(zipfile.ZipFile):
+    """
+    Supplement ZipFile class to support context manager for Python 2.6
+    """
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        self.close()
+
+    def __new__(cls, *args, **kwargs):
+        """
+        Construct a ZipFile or ContextualZipFile as appropriate
+        """
+        if hasattr(zipfile.ZipFile, '__exit__'):
+            return zipfile.ZipFile(*args, **kwargs)
+        return super(ContextualZipFile, cls).__new__(cls)
+
+
+class ZipProvider(EggProvider):
+    """Resource support for zips and eggs"""
+
+    eagers = None
+    _zip_manifests = MemoizedZipManifests()
+
+    def __init__(self, module):
+        EggProvider.__init__(self, module)
+        self.zip_pre = self.loader.archive + os.sep
+
+    def _zipinfo_name(self, fspath):
+        # Convert a virtual filename (full path to file) into a zipfile subpath
+        # usable with the zipimport directory cache for our target archive
+        if fspath.startswith(self.zip_pre):
+            return fspath[len(self.zip_pre):]
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.zip_pre)
+        )
+
+    def _parts(self, zip_path):
+        # Convert a zipfile subpath into an egg-relative path part list.
+        # pseudo-fs path
+        fspath = self.zip_pre + zip_path
+        if fspath.startswith(self.egg_root + os.sep):
+            return fspath[len(self.egg_root) + 1:].split(os.sep)
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.egg_root)
+        )
+
+    @property
+    def zipinfo(self):
+        return self._zip_manifests.load(self.loader.archive)
+
+    def get_resource_filename(self, manager, resource_name):
+        if not self.egg_name:
+            raise NotImplementedError(
+                "resource_filename() only supported for .egg, not .zip"
+            )
+        # no need to lock for extraction, since we use temp names
+        zip_path = self._resource_to_zip(resource_name)
+        eagers = self._get_eager_resources()
+        if '/'.join(self._parts(zip_path)) in eagers:
+            for name in eagers:
+                self._extract_resource(manager, self._eager_to_zip(name))
+        return self._extract_resource(manager, zip_path)
+
+    @staticmethod
+    def _get_date_and_size(zip_stat):
+        size = zip_stat.file_size
+        # ymdhms+wday, yday, dst
+        date_time = zip_stat.date_time + (0, 0, -1)
+        # 1980 offset already done
+        timestamp = time.mktime(date_time)
+        return timestamp, size
+
+    def _extract_resource(self, manager, zip_path):
+
+        if zip_path in self._index():
+            for name in self._index()[zip_path]:
+                last = self._extract_resource(
+                    manager, os.path.join(zip_path, name)
+                )
+            # return the extracted directory name
+            return os.path.dirname(last)
+
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+
+        if not WRITE_SUPPORT:
+            raise IOError('"os.rename" and "os.unlink" are not supported '
+                          'on this platform')
+        try:
+
+            real_path = manager.get_cache_path(
+                self.egg_name, self._parts(zip_path)
+            )
+
+            if self._is_current(real_path, zip_path):
+                return real_path
+
+            outf, tmpnam = _mkstemp(".$extract", dir=os.path.dirname(real_path))
+            os.write(outf, self.loader.get_data(zip_path))
+            os.close(outf)
+            utime(tmpnam, (timestamp, timestamp))
+            manager.postprocess(tmpnam, real_path)
+
+            try:
+                rename(tmpnam, real_path)
+
+            except os.error:
+                if os.path.isfile(real_path):
+                    if self._is_current(real_path, zip_path):
+                        # the file became current since it was checked above,
+                        #  so proceed.
+                        return real_path
+                    # Windows, del old file and retry
+                    elif os.name == 'nt':
+                        unlink(real_path)
+                        rename(tmpnam, real_path)
+                        return real_path
+                raise
+
+        except os.error:
+            # report a user-friendly error
+            manager.extraction_error()
+
+        return real_path
+
+    def _is_current(self, file_path, zip_path):
+        """
+        Return True if the file_path is current for this zip_path
+        """
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+        if not os.path.isfile(file_path):
+            return False
+        stat = os.stat(file_path)
+        if stat.st_size != size or stat.st_mtime != timestamp:
+            return False
+        # check that the contents match
+        zip_contents = self.loader.get_data(zip_path)
+        with open(file_path, 'rb') as f:
+            file_contents = f.read()
+        return zip_contents == file_contents
+
+    def _get_eager_resources(self):
+        if self.eagers is None:
+            eagers = []
+            for name in ('native_libs.txt', 'eager_resources.txt'):
+                if self.has_metadata(name):
+                    eagers.extend(self.get_metadata_lines(name))
+            self.eagers = eagers
+        return self.eagers
+
+    def _index(self):
+        try:
+            return self._dirindex
+        except AttributeError:
+            ind = {}
+            for path in self.zipinfo:
+                parts = path.split(os.sep)
+                while parts:
+                    parent = os.sep.join(parts[:-1])
+                    if parent in ind:
+                        ind[parent].append(parts[-1])
+                        break
+                    else:
+                        ind[parent] = [parts.pop()]
+            self._dirindex = ind
+            return ind
+
+    def _has(self, fspath):
+        zip_path = self._zipinfo_name(fspath)
+        return zip_path in self.zipinfo or zip_path in self._index()
+
+    def _isdir(self, fspath):
+        return self._zipinfo_name(fspath) in self._index()
+
+    def _listdir(self, fspath):
+        return list(self._index().get(self._zipinfo_name(fspath), ()))
+
+    def _eager_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.egg_root, resource_name))
+
+    def _resource_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.module_path, resource_name))
+
+
+register_loader_type(zipimport.zipimporter, ZipProvider)
+
+
+class FileMetadata(EmptyProvider):
+    """Metadata handler for standalone PKG-INFO files
+
+    Usage::
+
+        metadata = FileMetadata("/path/to/PKG-INFO")
+
+    This provider rejects all data and metadata requests except for PKG-INFO,
+    which is treated as existing, and will be the contents of the file at
+    the provided location.
+    """
+
+    def __init__(self, path):
+        self.path = path
+
+    def has_metadata(self, name):
+        return name == 'PKG-INFO' and os.path.isfile(self.path)
+
+    def get_metadata(self, name):
+        if name != 'PKG-INFO':
+            raise KeyError("No metadata except PKG-INFO is available")
+
+        with io.open(self.path, encoding='utf-8', errors="replace") as f:
+            metadata = f.read()
+        self._warn_on_replacement(metadata)
+        return metadata
+
+    def _warn_on_replacement(self, metadata):
+        # Python 2.6 and 3.2 compat for: replacement_char = '�'
+        replacement_char = b'\xef\xbf\xbd'.decode('utf-8')
+        if replacement_char in metadata:
+            tmpl = "{self.path} could not be properly decoded in UTF-8"
+            msg = tmpl.format(**locals())
+            warnings.warn(msg)
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+
+class PathMetadata(DefaultProvider):
+    """Metadata provider for egg directories
+
+    Usage::
+
+        # Development eggs:
+
+        egg_info = "/path/to/PackageName.egg-info"
+        base_dir = os.path.dirname(egg_info)
+        metadata = PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        dist = Distribution(basedir, project_name=dist_name, metadata=metadata)
+
+        # Unpacked egg directories:
+
+        egg_path = "/path/to/PackageName-ver-pyver-etc.egg"
+        metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO'))
+        dist = Distribution.from_filename(egg_path, metadata=metadata)
+    """
+
+    def __init__(self, path, egg_info):
+        self.module_path = path
+        self.egg_info = egg_info
+
+
+class EggMetadata(ZipProvider):
+    """Metadata provider for .egg files"""
+
+    def __init__(self, importer):
+        """Create a metadata provider from a zipimporter"""
+
+        self.zip_pre = importer.archive + os.sep
+        self.loader = importer
+        if importer.prefix:
+            self.module_path = os.path.join(importer.archive, importer.prefix)
+        else:
+            self.module_path = importer.archive
+        self._setup_prefix()
+
+
+_declare_state('dict', _distribution_finders={})
+
+
+def register_finder(importer_type, distribution_finder):
+    """Register `distribution_finder` to find distributions in sys.path items
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `distribution_finder` is a callable that, passed a path
+    item and the importer instance, yields ``Distribution`` instances found on
+    that path item.  See ``pkg_resources.find_on_path`` for an example."""
+    _distribution_finders[importer_type] = distribution_finder
+
+
+def find_distributions(path_item, only=False):
+    """Yield distributions accessible via `path_item`"""
+    importer = get_importer(path_item)
+    finder = _find_adapter(_distribution_finders, importer)
+    return finder(importer, path_item, only)
+
+
+def find_eggs_in_zip(importer, path_item, only=False):
+    """
+    Find eggs in zip files; possibly multiple nested eggs.
+    """
+    if importer.archive.endswith('.whl'):
+        # wheels are not supported with this finder
+        # they don't have PKG-INFO metadata, and won't ever contain eggs
+        return
+    metadata = EggMetadata(importer)
+    if metadata.has_metadata('PKG-INFO'):
+        yield Distribution.from_filename(path_item, metadata=metadata)
+    if only:
+        # don't yield nested distros
+        return
+    for subitem in metadata.resource_listdir('/'):
+        if _is_unpacked_egg(subitem):
+            subpath = os.path.join(path_item, subitem)
+            for dist in find_eggs_in_zip(zipimport.zipimporter(subpath), subpath):
+                yield dist
+
+
+register_finder(zipimport.zipimporter, find_eggs_in_zip)
+
+
+def find_nothing(importer, path_item, only=False):
+    return ()
+
+
+register_finder(object, find_nothing)
+
+
+def _by_version_descending(names):
+    """
+    Given a list of filenames, return them in descending order
+    by version number.
+
+    >>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg'
+    >>> _by_version_descending(names)
+    ['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg']
+    """
+    def _by_version(name):
+        """
+        Parse each component of the filename
+        """
+        name, ext = os.path.splitext(name)
+        parts = itertools.chain(name.split('-'), [ext])
+        return [packaging.version.parse(part) for part in parts]
+
+    return sorted(names, key=_by_version, reverse=True)
+
+
+def find_on_path(importer, path_item, only=False):
+    """Yield distributions accessible on a sys.path directory"""
+    path_item = _normalize_cached(path_item)
+
+    if os.path.isdir(path_item) and os.access(path_item, os.R_OK):
+        if _is_unpacked_egg(path_item):
+            yield Distribution.from_filename(
+                path_item, metadata=PathMetadata(
+                    path_item, os.path.join(path_item, 'EGG-INFO')
+                )
+            )
+        else:
+            # scan for .egg and .egg-info in directory
+            path_item_entries = _by_version_descending(os.listdir(path_item))
+            for entry in path_item_entries:
+                lower = entry.lower()
+                if lower.endswith('.egg-info') or lower.endswith('.dist-info'):
+                    fullpath = os.path.join(path_item, entry)
+                    if os.path.isdir(fullpath):
+                        # egg-info directory, allow getting metadata
+                        if len(os.listdir(fullpath)) == 0:
+                            # Empty egg directory, skip.
+                            continue
+                        metadata = PathMetadata(path_item, fullpath)
+                    else:
+                        metadata = FileMetadata(fullpath)
+                    yield Distribution.from_location(
+                        path_item, entry, metadata, precedence=DEVELOP_DIST
+                    )
+                elif not only and _is_unpacked_egg(entry):
+                    dists = find_distributions(os.path.join(path_item, entry))
+                    for dist in dists:
+                        yield dist
+                elif not only and lower.endswith('.egg-link'):
+                    with open(os.path.join(path_item, entry)) as entry_file:
+                        entry_lines = entry_file.readlines()
+                    for line in entry_lines:
+                        if not line.strip():
+                            continue
+                        path = os.path.join(path_item, line.rstrip())
+                        dists = find_distributions(path)
+                        for item in dists:
+                            yield item
+                        break
+
+
+register_finder(pkgutil.ImpImporter, find_on_path)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_finder(importlib_machinery.FileFinder, find_on_path)
+
+_declare_state('dict', _namespace_handlers={})
+_declare_state('dict', _namespace_packages={})
+
+
+def register_namespace_handler(importer_type, namespace_handler):
+    """Register `namespace_handler` to declare namespace packages
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `namespace_handler` is a callable like this::
+
+        def namespace_handler(importer, path_entry, moduleName, module):
+            # return a path_entry to use for child packages
+
+    Namespace handlers are only called if the importer object has already
+    agreed that it can handle the relevant path item, and they should only
+    return a subpath if the module __path__ does not already contain an
+    equivalent subpath.  For an example namespace handler, see
+    ``pkg_resources.file_ns_handler``.
+    """
+    _namespace_handlers[importer_type] = namespace_handler
+
+
+def _handle_ns(packageName, path_item):
+    """Ensure that named package includes a subpath of path_item (if needed)"""
+
+    importer = get_importer(path_item)
+    if importer is None:
+        return None
+    loader = importer.find_module(packageName)
+    if loader is None:
+        return None
+    module = sys.modules.get(packageName)
+    if module is None:
+        module = sys.modules[packageName] = types.ModuleType(packageName)
+        module.__path__ = []
+        _set_parent_ns(packageName)
+    elif not hasattr(module, '__path__'):
+        raise TypeError("Not a package:", packageName)
+    handler = _find_adapter(_namespace_handlers, importer)
+    subpath = handler(importer, path_item, packageName, module)
+    if subpath is not None:
+        path = module.__path__
+        path.append(subpath)
+        loader.load_module(packageName)
+        _rebuild_mod_path(path, packageName, module)
+    return subpath
+
+
+def _rebuild_mod_path(orig_path, package_name, module):
+    """
+    Rebuild module.__path__ ensuring that all entries are ordered
+    corresponding to their sys.path order
+    """
+    sys_path = [_normalize_cached(p) for p in sys.path]
+
+    def safe_sys_path_index(entry):
+        """
+        Workaround for #520 and #513.
+        """
+        try:
+            return sys_path.index(entry)
+        except ValueError:
+            return float('inf')
+
+    def position_in_sys_path(path):
+        """
+        Return the ordinal of the path based on its position in sys.path
+        """
+        path_parts = path.split(os.sep)
+        module_parts = package_name.count('.') + 1
+        parts = path_parts[:-module_parts]
+        return safe_sys_path_index(_normalize_cached(os.sep.join(parts)))
+
+    orig_path.sort(key=position_in_sys_path)
+    module.__path__[:] = [_normalize_cached(p) for p in orig_path]
+
+
+def declare_namespace(packageName):
+    """Declare that package 'packageName' is a namespace package"""
+
+    _imp.acquire_lock()
+    try:
+        if packageName in _namespace_packages:
+            return
+
+        path, parent = sys.path, None
+        if '.' in packageName:
+            parent = '.'.join(packageName.split('.')[:-1])
+            declare_namespace(parent)
+            if parent not in _namespace_packages:
+                __import__(parent)
+            try:
+                path = sys.modules[parent].__path__
+            except AttributeError:
+                raise TypeError("Not a package:", parent)
+
+        # Track what packages are namespaces, so when new path items are added,
+        # they can be updated
+        _namespace_packages.setdefault(parent, []).append(packageName)
+        _namespace_packages.setdefault(packageName, [])
+
+        for path_item in path:
+            # Ensure all the parent's path items are reflected in the child,
+            # if they apply
+            _handle_ns(packageName, path_item)
+
+    finally:
+        _imp.release_lock()
+
+
+def fixup_namespace_packages(path_item, parent=None):
+    """Ensure that previously-declared namespace packages include path_item"""
+    _imp.acquire_lock()
+    try:
+        for package in _namespace_packages.get(parent, ()):
+            subpath = _handle_ns(package, path_item)
+            if subpath:
+                fixup_namespace_packages(subpath, package)
+    finally:
+        _imp.release_lock()
+
+
+def file_ns_handler(importer, path_item, packageName, module):
+    """Compute an ns-package subpath for a filesystem or zipfile importer"""
+
+    subpath = os.path.join(path_item, packageName.split('.')[-1])
+    normalized = _normalize_cached(subpath)
+    for item in module.__path__:
+        if _normalize_cached(item) == normalized:
+            break
+    else:
+        # Only return the path if it's not already there
+        return subpath
+
+
+register_namespace_handler(pkgutil.ImpImporter, file_ns_handler)
+register_namespace_handler(zipimport.zipimporter, file_ns_handler)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_namespace_handler(importlib_machinery.FileFinder, file_ns_handler)
+
+
+def null_ns_handler(importer, path_item, packageName, module):
+    return None
+
+
+register_namespace_handler(object, null_ns_handler)
+
+
+def normalize_path(filename):
+    """Normalize a file/dir name for comparison purposes"""
+    return os.path.normcase(os.path.realpath(filename))
+
+
+def _normalize_cached(filename, _cache={}):
+    try:
+        return _cache[filename]
+    except KeyError:
+        _cache[filename] = result = normalize_path(filename)
+        return result
+
+
+def _is_unpacked_egg(path):
+    """
+    Determine if given path appears to be an unpacked egg.
+    """
+    return (
+        path.lower().endswith('.egg')
+    )
+
+
+def _set_parent_ns(packageName):
+    parts = packageName.split('.')
+    name = parts.pop()
+    if parts:
+        parent = '.'.join(parts)
+        setattr(sys.modules[parent], name, sys.modules[packageName])
+
+
+def yield_lines(strs):
+    """Yield non-empty/non-comment lines of a string or sequence"""
+    if isinstance(strs, six.string_types):
+        for s in strs.splitlines():
+            s = s.strip()
+            # skip blank lines/comments
+            if s and not s.startswith('#'):
+                yield s
+    else:
+        for ss in strs:
+            for s in yield_lines(ss):
+                yield s
+
+
+MODULE = re.compile(r"\w+(\.\w+)*$").match
+EGG_NAME = re.compile(
+    r"""
+    (?P<name>[^-]+) (
+        -(?P<ver>[^-]+) (
+            -py(?P<pyver>[^-]+) (
+                -(?P<plat>.+)
+            )?
+        )?
+    )?
+    """,
+    re.VERBOSE | re.IGNORECASE,
+).match
+
+
+class EntryPoint(object):
+    """Object representing an advertised importable object"""
+
+    def __init__(self, name, module_name, attrs=(), extras=(), dist=None):
+        if not MODULE(module_name):
+            raise ValueError("Invalid module name", module_name)
+        self.name = name
+        self.module_name = module_name
+        self.attrs = tuple(attrs)
+        self.extras = Requirement.parse(("x[%s]" % ','.join(extras))).extras
+        self.dist = dist
+
+    def __str__(self):
+        s = "%s = %s" % (self.name, self.module_name)
+        if self.attrs:
+            s += ':' + '.'.join(self.attrs)
+        if self.extras:
+            s += ' [%s]' % ','.join(self.extras)
+        return s
+
+    def __repr__(self):
+        return "EntryPoint.parse(%r)" % str(self)
+
+    def load(self, require=True, *args, **kwargs):
+        """
+        Require packages for this EntryPoint, then resolve it.
+        """
+        if not require or args or kwargs:
+            warnings.warn(
+                "Parameters to load are deprecated.  Call .resolve and "
+                ".require separately.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        if require:
+            self.require(*args, **kwargs)
+        return self.resolve()
+
+    def resolve(self):
+        """
+        Resolve the entry point from its module and attrs.
+        """
+        module = __import__(self.module_name, fromlist=['__name__'], level=0)
+        try:
+            return functools.reduce(getattr, self.attrs, module)
+        except AttributeError as exc:
+            raise ImportError(str(exc))
+
+    def require(self, env=None, installer=None):
+        if self.extras and not self.dist:
+            raise UnknownExtra("Can't require() without a distribution", self)
+        reqs = self.dist.requires(self.extras)
+        items = working_set.resolve(reqs, env, installer)
+        list(map(working_set.add, items))
+
+    pattern = re.compile(
+        r'\s*'
+        r'(?P<name>.+?)\s*'
+        r'=\s*'
+        r'(?P<module>[\w.]+)\s*'
+        r'(:\s*(?P<attr>[\w.]+))?\s*'
+        r'(?P<extras>\[.*\])?\s*$'
+    )
+
+    @classmethod
+    def parse(cls, src, dist=None):
+        """Parse a single entry point from string `src`
+
+        Entry point syntax follows the form::
+
+            name = some.module:some.attr [extra1, extra2]
+
+        The entry name and module name are required, but the ``:attrs`` and
+        ``[extras]`` parts are optional
+        """
+        m = cls.pattern.match(src)
+        if not m:
+            msg = "EntryPoint must be in 'name=module:attrs [extras]' format"
+            raise ValueError(msg, src)
+        res = m.groupdict()
+        extras = cls._parse_extras(res['extras'])
+        attrs = res['attr'].split('.') if res['attr'] else ()
+        return cls(res['name'], res['module'], attrs, extras, dist)
+
+    @classmethod
+    def _parse_extras(cls, extras_spec):
+        if not extras_spec:
+            return ()
+        req = Requirement.parse('x' + extras_spec)
+        if req.specs:
+            raise ValueError()
+        return req.extras
+
+    @classmethod
+    def parse_group(cls, group, lines, dist=None):
+        """Parse an entry point group"""
+        if not MODULE(group):
+            raise ValueError("Invalid group name", group)
+        this = {}
+        for line in yield_lines(lines):
+            ep = cls.parse(line, dist)
+            if ep.name in this:
+                raise ValueError("Duplicate entry point", group, ep.name)
+            this[ep.name] = ep
+        return this
+
+    @classmethod
+    def parse_map(cls, data, dist=None):
+        """Parse a map of entry point groups"""
+        if isinstance(data, dict):
+            data = data.items()
+        else:
+            data = split_sections(data)
+        maps = {}
+        for group, lines in data:
+            if group is None:
+                if not lines:
+                    continue
+                raise ValueError("Entry points must be listed in groups")
+            group = group.strip()
+            if group in maps:
+                raise ValueError("Duplicate group name", group)
+            maps[group] = cls.parse_group(group, lines, dist)
+        return maps
+
+
+def _remove_md5_fragment(location):
+    if not location:
+        return ''
+    parsed = urllib.parse.urlparse(location)
+    if parsed[-1].startswith('md5='):
+        return urllib.parse.urlunparse(parsed[:-1] + ('',))
+    return location
+
+
+def _version_from_file(lines):
+    """
+    Given an iterable of lines from a Metadata file, return
+    the value of the Version field, if present, or None otherwise.
+    """
+    is_version_line = lambda line: line.lower().startswith('version:')
+    version_lines = filter(is_version_line, lines)
+    line = next(iter(version_lines), '')
+    _, _, value = line.partition(':')
+    return safe_version(value.strip()) or None
+
+
+class Distribution(object):
+    """Wrap an actual or potential sys.path entry w/metadata"""
+    PKG_INFO = 'PKG-INFO'
+
+    def __init__(self, location=None, metadata=None, project_name=None,
+            version=None, py_version=PY_MAJOR, platform=None,
+            precedence=EGG_DIST):
+        self.project_name = safe_name(project_name or 'Unknown')
+        if version is not None:
+            self._version = safe_version(version)
+        self.py_version = py_version
+        self.platform = platform
+        self.location = location
+        self.precedence = precedence
+        self._provider = metadata or empty_provider
+
+    @classmethod
+    def from_location(cls, location, basename, metadata=None, **kw):
+        project_name, version, py_version, platform = [None] * 4
+        basename, ext = os.path.splitext(basename)
+        if ext.lower() in _distributionImpl:
+            cls = _distributionImpl[ext.lower()]
+
+            match = EGG_NAME(basename)
+            if match:
+                project_name, version, py_version, platform = match.group(
+                    'name', 'ver', 'pyver', 'plat'
+                )
+        return cls(
+            location, metadata, project_name=project_name, version=version,
+            py_version=py_version, platform=platform, **kw
+        )._reload_version()
+
+    def _reload_version(self):
+        return self
+
+    @property
+    def hashcmp(self):
+        return (
+            self.parsed_version,
+            self.precedence,
+            self.key,
+            _remove_md5_fragment(self.location),
+            self.py_version or '',
+            self.platform or '',
+        )
+
+    def __hash__(self):
+        return hash(self.hashcmp)
+
+    def __lt__(self, other):
+        return self.hashcmp < other.hashcmp
+
+    def __le__(self, other):
+        return self.hashcmp <= other.hashcmp
+
+    def __gt__(self, other):
+        return self.hashcmp > other.hashcmp
+
+    def __ge__(self, other):
+        return self.hashcmp >= other.hashcmp
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            # It's not a Distribution, so they are not equal
+            return False
+        return self.hashcmp == other.hashcmp
+
+    def __ne__(self, other):
+        return not self == other
+
+    # These properties have to be lazy so that we don't have to load any
+    # metadata until/unless it's actually needed.  (i.e., some distributions
+    # may not know their name or version without loading PKG-INFO)
+
+    @property
+    def key(self):
+        try:
+            return self._key
+        except AttributeError:
+            self._key = key = self.project_name.lower()
+            return key
+
+    @property
+    def parsed_version(self):
+        if not hasattr(self, "_parsed_version"):
+            self._parsed_version = parse_version(self.version)
+
+        return self._parsed_version
+
+    def _warn_legacy_version(self):
+        LV = packaging.version.LegacyVersion
+        is_legacy = isinstance(self._parsed_version, LV)
+        if not is_legacy:
+            return
+
+        # While an empty version is technically a legacy version and
+        # is not a valid PEP 440 version, it's also unlikely to
+        # actually come from someone and instead it is more likely that
+        # it comes from setuptools attempting to parse a filename and
+        # including it in the list. So for that we'll gate this warning
+        # on if the version is anything at all or not.
+        if not self.version:
+            return
+
+        tmpl = textwrap.dedent("""
+            '{project_name} ({version})' is being parsed as a legacy,
+            non PEP 440,
+            version. You may find odd behavior and sort order.
+            In particular it will be sorted as less than 0.0. It
+            is recommended to migrate to PEP 440 compatible
+            versions.
+            """).strip().replace('\n', ' ')
+
+        warnings.warn(tmpl.format(**vars(self)), PEP440Warning)
+
+    @property
+    def version(self):
+        try:
+            return self._version
+        except AttributeError:
+            version = _version_from_file(self._get_metadata(self.PKG_INFO))
+            if version is None:
+                tmpl = "Missing 'Version:' header and/or %s file"
+                raise ValueError(tmpl % self.PKG_INFO, self)
+            return version
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            dm = self.__dep_map = {None: []}
+            for name in 'requires.txt', 'depends.txt':
+                for extra, reqs in split_sections(self._get_metadata(name)):
+                    if extra:
+                        if ':' in extra:
+                            extra, marker = extra.split(':', 1)
+                            if invalid_marker(marker):
+                                # XXX warn
+                                reqs = []
+                            elif not evaluate_marker(marker):
+                                reqs = []
+                        extra = safe_extra(extra) or None
+                    dm.setdefault(extra, []).extend(parse_requirements(reqs))
+            return dm
+
+    def requires(self, extras=()):
+        """List of Requirements needed for this distro if `extras` are used"""
+        dm = self._dep_map
+        deps = []
+        deps.extend(dm.get(None, ()))
+        for ext in extras:
+            try:
+                deps.extend(dm[safe_extra(ext)])
+            except KeyError:
+                raise UnknownExtra(
+                    "%s has no such extra feature %r" % (self, ext)
+                )
+        return deps
+
+    def _get_metadata(self, name):
+        if self.has_metadata(name):
+            for line in self.get_metadata_lines(name):
+                yield line
+
+    def activate(self, path=None, replace=False):
+        """Ensure distribution is importable on `path` (default=sys.path)"""
+        if path is None:
+            path = sys.path
+        self.insert_on(path, replace=replace)
+        if path is sys.path:
+            fixup_namespace_packages(self.location)
+            for pkg in self._get_metadata('namespace_packages.txt'):
+                if pkg in sys.modules:
+                    declare_namespace(pkg)
+
+    def egg_name(self):
+        """Return what this distribution's standard .egg filename should be"""
+        filename = "%s-%s-py%s" % (
+            to_filename(self.project_name), to_filename(self.version),
+            self.py_version or PY_MAJOR
+        )
+
+        if self.platform:
+            filename += '-' + self.platform
+        return filename
+
+    def __repr__(self):
+        if self.location:
+            return "%s (%s)" % (self, self.location)
+        else:
+            return str(self)
+
+    def __str__(self):
+        try:
+            version = getattr(self, 'version', None)
+        except ValueError:
+            version = None
+        version = version or "[unknown version]"
+        return "%s %s" % (self.project_name, version)
+
+    def __getattr__(self, attr):
+        """Delegate all unrecognized public attributes to .metadata provider"""
+        if attr.startswith('_'):
+            raise AttributeError(attr)
+        return getattr(self._provider, attr)
+
+    @classmethod
+    def from_filename(cls, filename, metadata=None, **kw):
+        return cls.from_location(
+            _normalize_cached(filename), os.path.basename(filename), metadata,
+            **kw
+        )
+
+    def as_requirement(self):
+        """Return a ``Requirement`` that matches this distribution exactly"""
+        if isinstance(self.parsed_version, packaging.version.Version):
+            spec = "%s==%s" % (self.project_name, self.parsed_version)
+        else:
+            spec = "%s===%s" % (self.project_name, self.parsed_version)
+
+        return Requirement.parse(spec)
+
+    def load_entry_point(self, group, name):
+        """Return the `name` entry point of `group` or raise ImportError"""
+        ep = self.get_entry_info(group, name)
+        if ep is None:
+            raise ImportError("Entry point %r not found" % ((group, name),))
+        return ep.load()
+
+    def get_entry_map(self, group=None):
+        """Return the entry point map for `group`, or the full entry map"""
+        try:
+            ep_map = self._ep_map
+        except AttributeError:
+            ep_map = self._ep_map = EntryPoint.parse_map(
+                self._get_metadata('entry_points.txt'), self
+            )
+        if group is not None:
+            return ep_map.get(group, {})
+        return ep_map
+
+    def get_entry_info(self, group, name):
+        """Return the EntryPoint object for `group`+`name`, or ``None``"""
+        return self.get_entry_map(group).get(name)
+
+    def insert_on(self, path, loc=None, replace=False):
+        """Ensure self.location is on path
+
+        If replace=False (default):
+            - If location is already in path anywhere, do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent.
+              - Else: add to the end of path.
+        If replace=True:
+            - If location is already on path anywhere (not eggs)
+              or higher priority than its parent (eggs)
+              do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent,
+                removing any lower-priority entries.
+              - Else: add it to the front of path.
+        """
+
+        loc = loc or self.location
+        if not loc:
+            return
+
+        nloc = _normalize_cached(loc)
+        bdir = os.path.dirname(nloc)
+        npath = [(p and _normalize_cached(p) or p) for p in path]
+
+        for p, item in enumerate(npath):
+            if item == nloc:
+                if replace:
+                    break
+                else:
+                    # don't modify path (even removing duplicates) if found and not replace
+                    return
+            elif item == bdir and self.precedence == EGG_DIST:
+                # if it's an .egg, give it precedence over its directory
+                # UNLESS it's already been added to sys.path and replace=False
+                if (not replace) and nloc in npath[p:]:
+                    return
+                if path is sys.path:
+                    self.check_version_conflict()
+                path.insert(p, loc)
+                npath.insert(p, nloc)
+                break
+        else:
+            if path is sys.path:
+                self.check_version_conflict()
+            if replace:
+                path.insert(0, loc)
+            else:
+                path.append(loc)
+            return
+
+        # p is the spot where we found or inserted loc; now remove duplicates
+        while True:
+            try:
+                np = npath.index(nloc, p + 1)
+            except ValueError:
+                break
+            else:
+                del npath[np], path[np]
+                # ha!
+                p = np
+
+        return
+
+    def check_version_conflict(self):
+        if self.key == 'setuptools':
+            # ignore the inevitable setuptools self-conflicts  :(
+            return
+
+        nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt'))
+        loc = normalize_path(self.location)
+        for modname in self._get_metadata('top_level.txt'):
+            if (modname not in sys.modules or modname in nsp
+                    or modname in _namespace_packages):
+                continue
+            if modname in ('pkg_resources', 'setuptools', 'site'):
+                continue
+            fn = getattr(sys.modules[modname], '__file__', None)
+            if fn and (normalize_path(fn).startswith(loc) or
+                       fn.startswith(self.location)):
+                continue
+            issue_warning(
+                "Module %s was already imported from %s, but %s is being added"
+                " to sys.path" % (modname, fn, self.location),
+            )
+
+    def has_version(self):
+        try:
+            self.version
+        except ValueError:
+            issue_warning("Unbuilt egg for " + repr(self))
+            return False
+        return True
+
+    def clone(self, **kw):
+        """Copy this distribution, substituting in any changed keyword args"""
+        names = 'project_name version py_version platform location precedence'
+        for attr in names.split():
+            kw.setdefault(attr, getattr(self, attr, None))
+        kw.setdefault('metadata', self._provider)
+        return self.__class__(**kw)
+
+    @property
+    def extras(self):
+        return [dep for dep in self._dep_map if dep]
+
+
+class EggInfoDistribution(Distribution):
+    def _reload_version(self):
+        """
+        Packages installed by distutils (e.g. numpy or scipy),
+        which uses an old safe_version, and so
+        their version numbers can get mangled when
+        converted to filenames (e.g., 1.11.0.dev0+2329eae to
+        1.11.0.dev0_2329eae). These distributions will not be
+        parsed properly
+        downstream by Distribution and safe_version, so
+        take an extra step and try to get the version number from
+        the metadata file itself instead of the filename.
+        """
+        md_version = _version_from_file(self._get_metadata(self.PKG_INFO))
+        if md_version:
+            self._version = md_version
+        return self
+
+
+class DistInfoDistribution(Distribution):
+    """Wrap an actual or potential sys.path entry w/metadata, .dist-info style"""
+    PKG_INFO = 'METADATA'
+    EQEQ = re.compile(r"([\(,])\s*(\d.*?)\s*([,\)])")
+
+    @property
+    def _parsed_pkg_info(self):
+        """Parse and cache metadata"""
+        try:
+            return self._pkg_info
+        except AttributeError:
+            metadata = self.get_metadata(self.PKG_INFO)
+            self._pkg_info = email.parser.Parser().parsestr(metadata)
+            return self._pkg_info
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            self.__dep_map = self._compute_dependencies()
+            return self.__dep_map
+
+    def _compute_dependencies(self):
+        """Recompute this distribution's dependencies."""
+        dm = self.__dep_map = {None: []}
+
+        reqs = []
+        # Including any condition expressions
+        for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
+            reqs.extend(parse_requirements(req))
+
+        def reqs_for_extra(extra):
+            for req in reqs:
+                if not req.marker or req.marker.evaluate({'extra': extra}):
+                    yield req
+
+        common = frozenset(reqs_for_extra(None))
+        dm[None].extend(common)
+
+        for extra in self._parsed_pkg_info.get_all('Provides-Extra') or []:
+            s_extra = safe_extra(extra.strip())
+            dm[s_extra] = list(frozenset(reqs_for_extra(extra)) - common)
+
+        return dm
+
+
+_distributionImpl = {
+    '.egg': Distribution,
+    '.egg-info': EggInfoDistribution,
+    '.dist-info': DistInfoDistribution,
+    }
+
+
+def issue_warning(*args, **kw):
+    level = 1
+    g = globals()
+    try:
+        # find the first stack frame that is *not* code in
+        # the pkg_resources module, to use for the warning
+        while sys._getframe(level).f_globals is g:
+            level += 1
+    except ValueError:
+        pass
+    warnings.warn(stacklevel=level + 1, *args, **kw)
+
+
+class RequirementParseError(ValueError):
+    def __str__(self):
+        return ' '.join(self.args)
+
+
+def parse_requirements(strs):
+    """Yield ``Requirement`` objects for each specification in `strs`
+
+    `strs` must be a string, or a (possibly-nested) iterable thereof.
+    """
+    # create a steppable iterator, so we can handle \-continuations
+    lines = iter(yield_lines(strs))
+
+    for line in lines:
+        # Drop comments -- a hash without a space may be in a URL.
+        if ' #' in line:
+            line = line[:line.find(' #')]
+        # If there is a line continuation, drop it, and append the next line.
+        if line.endswith('\\'):
+            line = line[:-2].strip()
+            line += next(lines)
+        yield Requirement(line)
+
+
+class Requirement(packaging.requirements.Requirement):
+    def __init__(self, requirement_string):
+        """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!"""
+        try:
+            super(Requirement, self).__init__(requirement_string)
+        except packaging.requirements.InvalidRequirement as e:
+            raise RequirementParseError(str(e))
+        self.unsafe_name = self.name
+        project_name = safe_name(self.name)
+        self.project_name, self.key = project_name, project_name.lower()
+        self.specs = [
+            (spec.operator, spec.version) for spec in self.specifier]
+        self.extras = tuple(map(safe_extra, self.extras))
+        self.hashCmp = (
+            self.key,
+            self.specifier,
+            frozenset(self.extras),
+            str(self.marker) if self.marker else None,
+        )
+        self.__hash = hash(self.hashCmp)
+
+    def __eq__(self, other):
+        return (
+            isinstance(other, Requirement) and
+            self.hashCmp == other.hashCmp
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __contains__(self, item):
+        if isinstance(item, Distribution):
+            if item.key != self.key:
+                return False
+
+            item = item.version
+
+        # Allow prereleases always in order to match the previous behavior of
+        # this method. In the future this should be smarter and follow PEP 440
+        # more accurately.
+        return self.specifier.contains(item, prereleases=True)
+
+    def __hash__(self):
+        return self.__hash
+
+    def __repr__(self): return "Requirement.parse(%r)" % str(self)
+
+    @staticmethod
+    def parse(s):
+        req, = parse_requirements(s)
+        return req
+
+
+def _get_mro(cls):
+    """Get an mro for a type or classic class"""
+    if not isinstance(cls, type):
+
+        class cls(cls, object):
+            pass
+
+        return cls.__mro__[1:]
+    return cls.__mro__
+
+
+def _find_adapter(registry, ob):
+    """Return an adapter factory for `ob` from `registry`"""
+    for t in _get_mro(getattr(ob, '__class__', type(ob))):
+        if t in registry:
+            return registry[t]
+
+
+def ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    if not os.path.isdir(dirname):
+        os.makedirs(dirname)
+
+
+def _bypass_ensure_directory(path):
+    """Sandbox-bypassing version of ensure_directory()"""
+    if not WRITE_SUPPORT:
+        raise IOError('"os.mkdir" not supported on this platform.')
+    dirname, filename = split(path)
+    if dirname and filename and not isdir(dirname):
+        _bypass_ensure_directory(dirname)
+        mkdir(dirname, 0o755)
+
+
+def split_sections(s):
+    """Split a string or iterable thereof into (section, content) pairs
+
+    Each ``section`` is a stripped version of the section header ("[section]")
+    and each ``content`` is a list of stripped lines excluding blank lines and
+    comment-only lines.  If there are any such lines before the first section
+    header, they're returned in a first ``section`` of ``None``.
+    """
+    section = None
+    content = []
+    for line in yield_lines(s):
+        if line.startswith("["):
+            if line.endswith("]"):
+                if section or content:
+                    yield section, content
+                section = line[1:-1].strip()
+                content = []
+            else:
+                raise ValueError("Invalid section heading", line)
+        else:
+            content.append(line)
+
+    # wrap up last segment
+    yield section, content
+
+
+def _mkstemp(*args, **kw):
+    old_open = os.open
+    try:
+        # temporarily bypass sandboxing
+        os.open = os_open
+        return tempfile.mkstemp(*args, **kw)
+    finally:
+        # and then put it back
+        os.open = old_open
+
+
+# Silence the PEP440Warning by default, so that end users don't get hit by it
+# randomly just because they use pkg_resources. We want to append the rule
+# because we want earlier uses of filterwarnings to take precedence over this
+# one.
+warnings.filterwarnings("ignore", category=PEP440Warning, append=True)
+
+
+# from jaraco.functools 1.3
+def _call_aside(f, *args, **kwargs):
+    f(*args, **kwargs)
+    return f
+
+
+@_call_aside
+def _initialize(g=globals()):
+    "Set up global resource manager (deliberately not state-saved)"
+    manager = ResourceManager()
+    g['_manager'] = manager
+    for name in dir(manager):
+        if not name.startswith('_'):
+            g[name] = getattr(manager, name)
+
+
+@_call_aside
+def _initialize_master_working_set():
+    """
+    Prepare the master working set and make the ``require()``
+    API available.
+
+    This function has explicit effects on the global state
+    of pkg_resources. It is intended to be invoked once at
+    the initialization of this module.
+
+    Invocation by other packages is unsupported and done
+    at their own risk.
+    """
+    working_set = WorkingSet._build_master()
+    _declare_state('object', working_set=working_set)
+
+    require = working_set.require
+    iter_entry_points = working_set.iter_entry_points
+    add_activation_listener = working_set.subscribe
+    run_script = working_set.run_script
+    # backward compatibility
+    run_main = run_script
+    # Activate all distributions already on sys.path with replace=False and
+    # ensure that all distributions added to the working set in the future
+    # (e.g. by calling ``require()``) will get activated as well,
+    # with higher priority (replace=True).
+    dist = None  # ensure dist is defined for del dist below
+    for dist in working_set:
+        dist.activate(replace=False)
+    del dist
+    add_activation_listener(lambda dist: dist.activate(replace=True), existing=False)
+    working_set.entries = []
+    # match order
+    list(map(working_set.add_entry, sys.path))
+    globals().update(locals())
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/progress/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/progress/__init__.py
new file mode 100644
index 0000000..5107bc0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/progress/__init__.py
@@ -0,0 +1,123 @@
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import division
+
+from collections import deque
+from datetime import timedelta
+from math import ceil
+from sys import stderr
+from time import time
+
+
+__version__ = '1.2'
+
+
+class Infinite(object):
+    file = stderr
+    sma_window = 10
+
+    def __init__(self, *args, **kwargs):
+        self.index = 0
+        self.start_ts = time()
+        self._ts = self.start_ts
+        self._dt = deque(maxlen=self.sma_window)
+        for key, val in kwargs.items():
+            setattr(self, key, val)
+
+    def __getitem__(self, key):
+        if key.startswith('_'):
+            return None
+        return getattr(self, key, None)
+
+    @property
+    def avg(self):
+        return sum(self._dt) / len(self._dt) if self._dt else 0
+
+    @property
+    def elapsed(self):
+        return int(time() - self.start_ts)
+
+    @property
+    def elapsed_td(self):
+        return timedelta(seconds=self.elapsed)
+
+    def update(self):
+        pass
+
+    def start(self):
+        pass
+
+    def finish(self):
+        pass
+
+    def next(self, n=1):
+        if n > 0:
+            now = time()
+            dt = (now - self._ts) / n
+            self._dt.append(dt)
+            self._ts = now
+
+        self.index = self.index + n
+        self.update()
+
+    def iter(self, it):
+        for x in it:
+            yield x
+            self.next()
+        self.finish()
+
+
+class Progress(Infinite):
+    def __init__(self, *args, **kwargs):
+        super(Progress, self).__init__(*args, **kwargs)
+        self.max = kwargs.get('max', 100)
+
+    @property
+    def eta(self):
+        return int(ceil(self.avg * self.remaining))
+
+    @property
+    def eta_td(self):
+        return timedelta(seconds=self.eta)
+
+    @property
+    def percent(self):
+        return self.progress * 100
+
+    @property
+    def progress(self):
+        return min(1, self.index / self.max)
+
+    @property
+    def remaining(self):
+        return max(self.max - self.index, 0)
+
+    def start(self):
+        self.update()
+
+    def goto(self, index):
+        incr = index - self.index
+        self.next(incr)
+
+    def iter(self, it):
+        try:
+            self.max = len(it)
+        except TypeError:
+            pass
+
+        for x in it:
+            yield x
+            self.next()
+        self.finish()
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/progress/bar.py b/venv/lib/python3.5/site-packages/pip/_vendor/progress/bar.py
new file mode 100644
index 0000000..8ce1461
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/progress/bar.py
@@ -0,0 +1,83 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Progress
+from .helpers import WritelnMixin
+
+
+class Bar(WritelnMixin, Progress):
+    width = 32
+    message = ''
+    suffix = '%(index)d/%(max)d'
+    bar_prefix = ' |'
+    bar_suffix = '| '
+    empty_fill = ' '
+    fill = '#'
+    hide_cursor = True
+
+    def update(self):
+        filled_length = int(self.width * self.progress)
+        empty_length = self.width - filled_length
+
+        message = self.message % self
+        bar = self.fill * filled_length
+        empty = self.empty_fill * empty_length
+        suffix = self.suffix % self
+        line = ''.join([message, self.bar_prefix, bar, empty, self.bar_suffix,
+                        suffix])
+        self.writeln(line)
+
+
+class ChargingBar(Bar):
+    suffix = '%(percent)d%%'
+    bar_prefix = ' '
+    bar_suffix = ' '
+    empty_fill = u'∙'
+    fill = u'█'
+
+
+class FillingSquaresBar(ChargingBar):
+    empty_fill = u'▢'
+    fill = u'▣'
+
+
+class FillingCirclesBar(ChargingBar):
+    empty_fill = u'◯'
+    fill = u'◉'
+
+
+class IncrementalBar(Bar):
+    phases = (u' ', u'▏', u'▎', u'▍', u'▌', u'▋', u'▊', u'▉', u'█')
+
+    def update(self):
+        nphases = len(self.phases)
+        expanded_length = int(nphases * self.width * self.progress)
+        filled_length = int(self.width * self.progress)
+        empty_length = self.width - filled_length
+        phase = expanded_length - (filled_length * nphases)
+
+        message = self.message % self
+        bar = self.phases[-1] * filled_length
+        current = self.phases[phase] if phase > 0 else ''
+        empty = self.empty_fill * max(0, empty_length - len(current))
+        suffix = self.suffix % self
+        line = ''.join([message, self.bar_prefix, bar, current, empty,
+                        self.bar_suffix, suffix])
+        self.writeln(line)
+
+
+class ShadyBar(IncrementalBar):
+    phases = (u' ', u'░', u'▒', u'▓', u'█')
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/progress/counter.py b/venv/lib/python3.5/site-packages/pip/_vendor/progress/counter.py
new file mode 100644
index 0000000..caaddc6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/progress/counter.py
@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Infinite, Progress
+from .helpers import WriteMixin
+
+
+class Counter(WriteMixin, Infinite):
+    message = ''
+    hide_cursor = True
+
+    def update(self):
+        self.write(str(self.index))
+
+
+class Countdown(WriteMixin, Progress):
+    hide_cursor = True
+
+    def update(self):
+        self.write(str(self.remaining))
+
+
+class Stack(WriteMixin, Progress):
+    phases = (u' ', u'▁', u'▂', u'▃', u'▄', u'▅', u'▆', u'▇', u'█')
+    hide_cursor = True
+
+    def update(self):
+        nphases = len(self.phases)
+        i = min(nphases - 1, int(self.progress * nphases))
+        self.write(self.phases[i])
+
+
+class Pie(Stack):
+    phases = (u'○', u'◔', u'◑', u'◕', u'●')
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py b/venv/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py
new file mode 100644
index 0000000..9ed90b2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py
@@ -0,0 +1,91 @@
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import print_function
+
+
+HIDE_CURSOR = '\x1b[?25l'
+SHOW_CURSOR = '\x1b[?25h'
+
+
+class WriteMixin(object):
+    hide_cursor = False
+
+    def __init__(self, message=None, **kwargs):
+        super(WriteMixin, self).__init__(**kwargs)
+        self._width = 0
+        if message:
+            self.message = message
+
+        if self.file.isatty():
+            if self.hide_cursor:
+                print(HIDE_CURSOR, end='', file=self.file)
+            print(self.message, end='', file=self.file)
+            self.file.flush()
+
+    def write(self, s):
+        if self.file.isatty():
+            b = '\b' * self._width
+            c = s.ljust(self._width)
+            print(b + c, end='', file=self.file)
+            self._width = max(self._width, len(s))
+            self.file.flush()
+
+    def finish(self):
+        if self.file.isatty() and self.hide_cursor:
+            print(SHOW_CURSOR, end='', file=self.file)
+
+
+class WritelnMixin(object):
+    hide_cursor = False
+
+    def __init__(self, message=None, **kwargs):
+        super(WritelnMixin, self).__init__(**kwargs)
+        if message:
+            self.message = message
+
+        if self.file.isatty() and self.hide_cursor:
+            print(HIDE_CURSOR, end='', file=self.file)
+
+    def clearln(self):
+        if self.file.isatty():
+            print('\r\x1b[K', end='', file=self.file)
+
+    def writeln(self, line):
+        if self.file.isatty():
+            self.clearln()
+            print(line, end='', file=self.file)
+            self.file.flush()
+
+    def finish(self):
+        if self.file.isatty():
+            print(file=self.file)
+            if self.hide_cursor:
+                print(SHOW_CURSOR, end='', file=self.file)
+
+
+from signal import signal, SIGINT
+from sys import exit
+
+
+class SigIntMixin(object):
+    """Registers a signal handler that calls finish on SIGINT"""
+
+    def __init__(self, *args, **kwargs):
+        super(SigIntMixin, self).__init__(*args, **kwargs)
+        signal(SIGINT, self._sigint_handler)
+
+    def _sigint_handler(self, signum, frame):
+        self.finish()
+        exit(0)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py b/venv/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py
new file mode 100644
index 0000000..969bfbb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Infinite
+from .helpers import WriteMixin
+
+
+class Spinner(WriteMixin, Infinite):
+    message = ''
+    phases = ('-', '\\', '|', '/')
+    hide_cursor = True
+
+    def update(self):
+        i = self.index % len(self.phases)
+        self.write(self.phases[i])
+
+
+class PieSpinner(Spinner):
+    phases = [u'◷', u'◶', u'◵', u'◴']
+
+
+class MoonSpinner(Spinner):
+    phases = [u'◑', u'◒', u'◐', u'◓']
+
+
+class LineSpinner(Spinner):
+    phases = [u'⎺', u'⎻', u'⎼', u'⎽', u'⎼', u'⎻']
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/pyparsing.py b/venv/lib/python3.5/site-packages/pip/_vendor/pyparsing.py
new file mode 100644
index 0000000..cb46d41
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/pyparsing.py
@@ -0,0 +1,5696 @@
+# module pyparsing.py
+#
+# Copyright (c) 2003-2016  Paul T. McGuire
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__doc__ = \
+"""
+pyparsing module - Classes and methods to define and execute parsing grammars
+
+The pyparsing module is an alternative approach to creating and executing simple grammars,
+vs. the traditional lex/yacc approach, or the use of regular expressions.  With pyparsing, you
+don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
+provides a library of classes that you use to construct the grammar directly in Python.
+
+Here is a program to parse "Hello, World!" (or any greeting of the form 
+C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements 
+(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
+L{Literal} expressions)::
+
+    from pyparsing import Word, alphas
+
+    # define grammar of a greeting
+    greet = Word(alphas) + "," + Word(alphas) + "!"
+
+    hello = "Hello, World!"
+    print (hello, "->", greet.parseString(hello))
+
+The program outputs the following::
+
+    Hello, World! -> ['Hello', ',', 'World', '!']
+
+The Python representation of the grammar is quite readable, owing to the self-explanatory
+class names, and the use of '+', '|' and '^' operators.
+
+The L{ParseResults} object returned from L{ParserElement.parseString<ParserElement.parseString>} can be accessed as a nested list, a dictionary, or an
+object with named attributes.
+
+The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
+ - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello  ,  World  !", etc.)
+ - quoted strings
+ - embedded comments
+"""
+
+__version__ = "2.1.10"
+__versionTime__ = "07 Oct 2016 01:31 UTC"
+__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
+
+import string
+from weakref import ref as wkref
+import copy
+import sys
+import warnings
+import re
+import sre_constants
+import collections
+import pprint
+import traceback
+import types
+from datetime import datetime
+
+try:
+    from _thread import RLock
+except ImportError:
+    from threading import RLock
+
+try:
+    from collections import OrderedDict as _OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict as _OrderedDict
+    except ImportError:
+        _OrderedDict = None
+
+#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
+
+__all__ = [
+'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
+'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
+'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
+'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
+'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
+'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 
+'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
+'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
+'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
+'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'hexnums',
+'htmlComment', 'javaStyleComment', 'line', 'lineEnd', 'lineStart', 'lineno',
+'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
+'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
+'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity', 
+'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
+'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
+'indentedBlock', 'originalTextFor', 'ungroup', 'infixNotation','locatedExpr', 'withClass',
+'CloseMatch', 'tokenMap', 'pyparsing_common',
+]
+
+system_version = tuple(sys.version_info)[:3]
+PY_3 = system_version[0] == 3
+if PY_3:
+    _MAX_INT = sys.maxsize
+    basestring = str
+    unichr = chr
+    _ustr = str
+
+    # build list of single arg builtins, that can be used as parse actions
+    singleArgBuiltins = [sum, len, sorted, reversed, list, tuple, set, any, all, min, max]
+
+else:
+    _MAX_INT = sys.maxint
+    range = xrange
+
+    def _ustr(obj):
+        """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
+           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
+           then < returns the unicode object | encodes it with the default encoding | ... >.
+        """
+        if isinstance(obj,unicode):
+            return obj
+
+        try:
+            # If this works, then _ustr(obj) has the same behaviour as str(obj), so
+            # it won't break any existing code.
+            return str(obj)
+
+        except UnicodeEncodeError:
+            # Else encode it
+            ret = unicode(obj).encode(sys.getdefaultencoding(), 'xmlcharrefreplace')
+            xmlcharref = Regex('&#\d+;')
+            xmlcharref.setParseAction(lambda t: '\\u' + hex(int(t[0][2:-1]))[2:])
+            return xmlcharref.transformString(ret)
+
+    # build list of single arg builtins, tolerant of Python version, that can be used as parse actions
+    singleArgBuiltins = []
+    import __builtin__
+    for fname in "sum len sorted reversed list tuple set any all min max".split():
+        try:
+            singleArgBuiltins.append(getattr(__builtin__,fname))
+        except AttributeError:
+            continue
+            
+_generatorType = type((y for y in range(1)))
+ 
+def _xml_escape(data):
+    """Escape &, <, >, ", ', etc. in a string of data."""
+
+    # ampersand must be replaced first
+    from_symbols = '&><"\''
+    to_symbols = ('&'+s+';' for s in "amp gt lt quot apos".split())
+    for from_,to_ in zip(from_symbols, to_symbols):
+        data = data.replace(from_, to_)
+    return data
+
+class _Constants(object):
+    pass
+
+alphas     = string.ascii_uppercase + string.ascii_lowercase
+nums       = "0123456789"
+hexnums    = nums + "ABCDEFabcdef"
+alphanums  = alphas + nums
+_bslash    = chr(92)
+printables = "".join(c for c in string.printable if c not in string.whitespace)
+
+class ParseBaseException(Exception):
+    """base exception class for all parsing runtime exceptions"""
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, pstr, loc=0, msg=None, elem=None ):
+        self.loc = loc
+        if msg is None:
+            self.msg = pstr
+            self.pstr = ""
+        else:
+            self.msg = msg
+            self.pstr = pstr
+        self.parserElement = elem
+        self.args = (pstr, loc, msg)
+
+    @classmethod
+    def _from_exception(cls, pe):
+        """
+        internal factory method to simplify creating one type of ParseException 
+        from another - avoids having __init__ signature conflicts among subclasses
+        """
+        return cls(pe.pstr, pe.loc, pe.msg, pe.parserElement)
+
+    def __getattr__( self, aname ):
+        """supported attributes by name are:
+            - lineno - returns the line number of the exception text
+            - col - returns the column number of the exception text
+            - line - returns the line containing the exception text
+        """
+        if( aname == "lineno" ):
+            return lineno( self.loc, self.pstr )
+        elif( aname in ("col", "column") ):
+            return col( self.loc, self.pstr )
+        elif( aname == "line" ):
+            return line( self.loc, self.pstr )
+        else:
+            raise AttributeError(aname)
+
+    def __str__( self ):
+        return "%s (at char %d), (line:%d, col:%d)" % \
+                ( self.msg, self.loc, self.lineno, self.column )
+    def __repr__( self ):
+        return _ustr(self)
+    def markInputline( self, markerString = ">!<" ):
+        """Extracts the exception line from the input string, and marks
+           the location of the exception with a special symbol.
+        """
+        line_str = self.line
+        line_column = self.column - 1
+        if markerString:
+            line_str = "".join((line_str[:line_column],
+                                markerString, line_str[line_column:]))
+        return line_str.strip()
+    def __dir__(self):
+        return "lineno col line".split() + dir(type(self))
+
+class ParseException(ParseBaseException):
+    """
+    Exception thrown when parse expressions don't match class;
+    supported attributes by name are:
+     - lineno - returns the line number of the exception text
+     - col - returns the column number of the exception text
+     - line - returns the line containing the exception text
+        
+    Example::
+        try:
+            Word(nums).setName("integer").parseString("ABC")
+        except ParseException as pe:
+            print(pe)
+            print("column: {}".format(pe.col))
+            
+    prints::
+       Expected integer (at char 0), (line:1, col:1)
+        column: 1
+    """
+    pass
+
+class ParseFatalException(ParseBaseException):
+    """user-throwable exception thrown when inconsistent parse content
+       is found; stops all parsing immediately"""
+    pass
+
+class ParseSyntaxException(ParseFatalException):
+    """just like L{ParseFatalException}, but thrown internally when an
+       L{ErrorStop<And._ErrorStop>} ('-' operator) indicates that parsing is to stop 
+       immediately because an unbacktrackable syntax error has been found"""
+    pass
+
+#~ class ReparseException(ParseBaseException):
+    #~ """Experimental class - parse actions can raise this exception to cause
+       #~ pyparsing to reparse the input string:
+        #~ - with a modified input string, and/or
+        #~ - with a modified start location
+       #~ Set the values of the ReparseException in the constructor, and raise the
+       #~ exception in a parse action to cause pyparsing to use the new string/location.
+       #~ Setting the values as None causes no change to be made.
+       #~ """
+    #~ def __init_( self, newstring, restartLoc ):
+        #~ self.newParseText = newstring
+        #~ self.reparseLoc = restartLoc
+
+class RecursiveGrammarException(Exception):
+    """exception thrown by L{ParserElement.validate} if the grammar could be improperly recursive"""
+    def __init__( self, parseElementList ):
+        self.parseElementTrace = parseElementList
+
+    def __str__( self ):
+        return "RecursiveGrammarException: %s" % self.parseElementTrace
+
+class _ParseResultsWithOffset(object):
+    def __init__(self,p1,p2):
+        self.tup = (p1,p2)
+    def __getitem__(self,i):
+        return self.tup[i]
+    def __repr__(self):
+        return repr(self.tup[0])
+    def setOffset(self,i):
+        self.tup = (self.tup[0],i)
+
+class ParseResults(object):
+    """
+    Structured parse results, to provide multiple means of access to the parsed data:
+       - as a list (C{len(results)})
+       - by list index (C{results[0], results[1]}, etc.)
+       - by attribute (C{results.<resultsName>} - see L{ParserElement.setResultsName})
+
+    Example::
+        integer = Word(nums)
+        date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+        # equivalent form:
+        # date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+
+        # parseString returns a ParseResults object
+        result = date_str.parseString("1999/12/31")
+
+        def test(s, fn=repr):
+            print("%s -> %s" % (s, fn(eval(s))))
+        test("list(result)")
+        test("result[0]")
+        test("result['month']")
+        test("result.day")
+        test("'month' in result")
+        test("'minutes' in result")
+        test("result.dump()", str)
+    prints::
+        list(result) -> ['1999', '/', '12', '/', '31']
+        result[0] -> '1999'
+        result['month'] -> '12'
+        result.day -> '31'
+        'month' in result -> True
+        'minutes' in result -> False
+        result.dump() -> ['1999', '/', '12', '/', '31']
+        - day: 31
+        - month: 12
+        - year: 1999
+    """
+    def __new__(cls, toklist=None, name=None, asList=True, modal=True ):
+        if isinstance(toklist, cls):
+            return toklist
+        retobj = object.__new__(cls)
+        retobj.__doinit = True
+        return retobj
+
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, toklist=None, name=None, asList=True, modal=True, isinstance=isinstance ):
+        if self.__doinit:
+            self.__doinit = False
+            self.__name = None
+            self.__parent = None
+            self.__accumNames = {}
+            self.__asList = asList
+            self.__modal = modal
+            if toklist is None:
+                toklist = []
+            if isinstance(toklist, list):
+                self.__toklist = toklist[:]
+            elif isinstance(toklist, _generatorType):
+                self.__toklist = list(toklist)
+            else:
+                self.__toklist = [toklist]
+            self.__tokdict = dict()
+
+        if name is not None and name:
+            if not modal:
+                self.__accumNames[name] = 0
+            if isinstance(name,int):
+                name = _ustr(name) # will always return a str, but use _ustr for consistency
+            self.__name = name
+            if not (isinstance(toklist, (type(None), basestring, list)) and toklist in (None,'',[])):
+                if isinstance(toklist,basestring):
+                    toklist = [ toklist ]
+                if asList:
+                    if isinstance(toklist,ParseResults):
+                        self[name] = _ParseResultsWithOffset(toklist.copy(),0)
+                    else:
+                        self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
+                    self[name].__name = name
+                else:
+                    try:
+                        self[name] = toklist[0]
+                    except (KeyError,TypeError,IndexError):
+                        self[name] = toklist
+
+    def __getitem__( self, i ):
+        if isinstance( i, (int,slice) ):
+            return self.__toklist[i]
+        else:
+            if i not in self.__accumNames:
+                return self.__tokdict[i][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[i] ])
+
+    def __setitem__( self, k, v, isinstance=isinstance ):
+        if isinstance(v,_ParseResultsWithOffset):
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
+            sub = v[0]
+        elif isinstance(k,(int,slice)):
+            self.__toklist[k] = v
+            sub = v
+        else:
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
+            sub = v
+        if isinstance(sub,ParseResults):
+            sub.__parent = wkref(self)
+
+    def __delitem__( self, i ):
+        if isinstance(i,(int,slice)):
+            mylen = len( self.__toklist )
+            del self.__toklist[i]
+
+            # convert int to slice
+            if isinstance(i, int):
+                if i < 0:
+                    i += mylen
+                i = slice(i, i+1)
+            # get removed indices
+            removed = list(range(*i.indices(mylen)))
+            removed.reverse()
+            # fixup indices in token dictionary
+            for name,occurrences in self.__tokdict.items():
+                for j in removed:
+                    for k, (value, position) in enumerate(occurrences):
+                        occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
+        else:
+            del self.__tokdict[i]
+
+    def __contains__( self, k ):
+        return k in self.__tokdict
+
+    def __len__( self ): return len( self.__toklist )
+    def __bool__(self): return ( not not self.__toklist )
+    __nonzero__ = __bool__
+    def __iter__( self ): return iter( self.__toklist )
+    def __reversed__( self ): return iter( self.__toklist[::-1] )
+    def _iterkeys( self ):
+        if hasattr(self.__tokdict, "iterkeys"):
+            return self.__tokdict.iterkeys()
+        else:
+            return iter(self.__tokdict)
+
+    def _itervalues( self ):
+        return (self[k] for k in self._iterkeys())
+            
+    def _iteritems( self ):
+        return ((k, self[k]) for k in self._iterkeys())
+
+    if PY_3:
+        keys = _iterkeys       
+        """Returns an iterator of all named result keys (Python 3.x only)."""
+
+        values = _itervalues
+        """Returns an iterator of all named result values (Python 3.x only)."""
+
+        items = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 3.x only)."""
+
+    else:
+        iterkeys = _iterkeys
+        """Returns an iterator of all named result keys (Python 2.x only)."""
+
+        itervalues = _itervalues
+        """Returns an iterator of all named result values (Python 2.x only)."""
+
+        iteritems = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 2.x only)."""
+
+        def keys( self ):
+            """Returns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iterkeys())
+
+        def values( self ):
+            """Returns all named result values (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.itervalues())
+                
+        def items( self ):
+            """Returns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iteritems())
+
+    def haskeys( self ):
+        """Since keys() returns an iterator, this method is helpful in bypassing
+           code that looks for the existence of any defined results names."""
+        return bool(self.__tokdict)
+        
+    def pop( self, *args, **kwargs):
+        """
+        Removes and returns item at specified index (default=C{last}).
+        Supports both C{list} and C{dict} semantics for C{pop()}. If passed no
+        argument or an integer argument, it will use C{list} semantics
+        and pop tokens from the list of parsed tokens. If passed a 
+        non-integer argument (most likely a string), it will use C{dict}
+        semantics and pop the corresponding value from any defined 
+        results names. A second default return value argument is 
+        supported, just as in C{dict.pop()}.
+
+        Example::
+            def remove_first(tokens):
+                tokens.pop(0)
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321']
+
+            label = Word(alphas)
+            patt = label("LABEL") + OneOrMore(Word(nums))
+            print(patt.parseString("AAB 123 321").dump())
+
+            # Use pop() in a parse action to remove named result (note that corresponding value is not
+            # removed from list form of results)
+            def remove_LABEL(tokens):
+                tokens.pop("LABEL")
+                return tokens
+            patt.addParseAction(remove_LABEL)
+            print(patt.parseString("AAB 123 321").dump())
+        prints::
+            ['AAB', '123', '321']
+            - LABEL: AAB
+
+            ['AAB', '123', '321']
+        """
+        if not args:
+            args = [-1]
+        for k,v in kwargs.items():
+            if k == 'default':
+                args = (args[0], v)
+            else:
+                raise TypeError("pop() got an unexpected keyword argument '%s'" % k)
+        if (isinstance(args[0], int) or 
+                        len(args) == 1 or 
+                        args[0] in self):
+            index = args[0]
+            ret = self[index]
+            del self[index]
+            return ret
+        else:
+            defaultvalue = args[1]
+            return defaultvalue
+
+    def get(self, key, defaultValue=None):
+        """
+        Returns named result matching the given key, or if there is no
+        such name, then returns the given C{defaultValue} or C{None} if no
+        C{defaultValue} is specified.
+
+        Similar to C{dict.get()}.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            result = date_str.parseString("1999/12/31")
+            print(result.get("year")) # -> '1999'
+            print(result.get("hour", "not specified")) # -> 'not specified'
+            print(result.get("hour")) # -> None
+        """
+        if key in self:
+            return self[key]
+        else:
+            return defaultValue
+
+    def insert( self, index, insStr ):
+        """
+        Inserts new element at location index in the list of parsed tokens.
+        
+        Similar to C{list.insert()}.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+
+            # use a parse action to insert the parse location in the front of the parsed results
+            def insert_locn(locn, tokens):
+                tokens.insert(0, locn)
+            print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321']
+        """
+        self.__toklist.insert(index, insStr)
+        # fixup indices in token dictionary
+        for name,occurrences in self.__tokdict.items():
+            for k, (value, position) in enumerate(occurrences):
+                occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
+
+    def append( self, item ):
+        """
+        Add single element to end of ParseResults list of elements.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            
+            # use a parse action to compute the sum of the parsed integers, and add it to the end
+            def append_sum(tokens):
+                tokens.append(sum(map(int, tokens)))
+            print(OneOrMore(Word(nums)).addParseAction(append_sum).parseString("0 123 321")) # -> ['0', '123', '321', 444]
+        """
+        self.__toklist.append(item)
+
+    def extend( self, itemseq ):
+        """
+        Add sequence of elements to end of ParseResults list of elements.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            
+            # use a parse action to append the reverse of the matched strings, to make a palindrome
+            def make_palindrome(tokens):
+                tokens.extend(reversed([t[::-1] for t in tokens]))
+                return ''.join(tokens)
+            print(patt.addParseAction(make_palindrome).parseString("lskdj sdlkjf lksd")) # -> 'lskdjsdlkjflksddsklfjkldsjdksl'
+        """
+        if isinstance(itemseq, ParseResults):
+            self += itemseq
+        else:
+            self.__toklist.extend(itemseq)
+
+    def clear( self ):
+        """
+        Clear all elements and results names.
+        """
+        del self.__toklist[:]
+        self.__tokdict.clear()
+
+    def __getattr__( self, name ):
+        try:
+            return self[name]
+        except KeyError:
+            return ""
+            
+        if name in self.__tokdict:
+            if name not in self.__accumNames:
+                return self.__tokdict[name][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[name] ])
+        else:
+            return ""
+
+    def __add__( self, other ):
+        ret = self.copy()
+        ret += other
+        return ret
+
+    def __iadd__( self, other ):
+        if other.__tokdict:
+            offset = len(self.__toklist)
+            addoffset = lambda a: offset if a<0 else a+offset
+            otheritems = other.__tokdict.items()
+            otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
+                                for (k,vlist) in otheritems for v in vlist]
+            for k,v in otherdictitems:
+                self[k] = v
+                if isinstance(v[0],ParseResults):
+                    v[0].__parent = wkref(self)
+            
+        self.__toklist += other.__toklist
+        self.__accumNames.update( other.__accumNames )
+        return self
+
+    def __radd__(self, other):
+        if isinstance(other,int) and other == 0:
+            # useful for merging many ParseResults using sum() builtin
+            return self.copy()
+        else:
+            # this may raise a TypeError - so be it
+            return other + self
+        
+    def __repr__( self ):
+        return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
+
+    def __str__( self ):
+        return '[' + ', '.join(_ustr(i) if isinstance(i, ParseResults) else repr(i) for i in self.__toklist) + ']'
+
+    def _asStringList( self, sep='' ):
+        out = []
+        for item in self.__toklist:
+            if out and sep:
+                out.append(sep)
+            if isinstance( item, ParseResults ):
+                out += item._asStringList()
+            else:
+                out.append( _ustr(item) )
+        return out
+
+    def asList( self ):
+        """
+        Returns the parse results as a nested list of matching tokens, all converted to strings.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            result = patt.parseString("sldkj lsdkj sldkj")
+            # even though the result prints in string-like form, it is actually a pyparsing ParseResults
+            print(type(result), result) # -> <class 'pyparsing.ParseResults'> ['sldkj', 'lsdkj', 'sldkj']
+            
+            # Use asList() to create an actual list
+            result_list = result.asList()
+            print(type(result_list), result_list) # -> <class 'list'> ['sldkj', 'lsdkj', 'sldkj']
+        """
+        return [res.asList() if isinstance(res,ParseResults) else res for res in self.__toklist]
+
+    def asDict( self ):
+        """
+        Returns the named parse results as a nested dictionary.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(type(result), repr(result)) # -> <class 'pyparsing.ParseResults'> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]})
+            
+            result_dict = result.asDict()
+            print(type(result_dict), repr(result_dict)) # -> <class 'dict'> {'day': '1999', 'year': '12', 'month': '31'}
+
+            # even though a ParseResults supports dict-like access, sometime you just need to have a dict
+            import json
+            print(json.dumps(result)) # -> Exception: TypeError: ... is not JSON serializable
+            print(json.dumps(result.asDict())) # -> {"month": "31", "day": "1999", "year": "12"}
+        """
+        if PY_3:
+            item_fn = self.items
+        else:
+            item_fn = self.iteritems
+            
+        def toItem(obj):
+            if isinstance(obj, ParseResults):
+                if obj.haskeys():
+                    return obj.asDict()
+                else:
+                    return [toItem(v) for v in obj]
+            else:
+                return obj
+                
+        return dict((k,toItem(v)) for k,v in item_fn())
+
+    def copy( self ):
+        """
+        Returns a new copy of a C{ParseResults} object.
+        """
+        ret = ParseResults( self.__toklist )
+        ret.__tokdict = self.__tokdict.copy()
+        ret.__parent = self.__parent
+        ret.__accumNames.update( self.__accumNames )
+        ret.__name = self.__name
+        return ret
+
+    def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
+        """
+        (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names.
+        """
+        nl = "\n"
+        out = []
+        namedItems = dict((v[1],k) for (k,vlist) in self.__tokdict.items()
+                                                            for v in vlist)
+        nextLevelIndent = indent + "  "
+
+        # collapse out indents if formatting is not desired
+        if not formatted:
+            indent = ""
+            nextLevelIndent = ""
+            nl = ""
+
+        selfTag = None
+        if doctag is not None:
+            selfTag = doctag
+        else:
+            if self.__name:
+                selfTag = self.__name
+
+        if not selfTag:
+            if namedItemsOnly:
+                return ""
+            else:
+                selfTag = "ITEM"
+
+        out += [ nl, indent, "<", selfTag, ">" ]
+
+        for i,res in enumerate(self.__toklist):
+            if isinstance(res,ParseResults):
+                if i in namedItems:
+                    out += [ res.asXML(namedItems[i],
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+                else:
+                    out += [ res.asXML(None,
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+            else:
+                # individual token, see if there is a name for it
+                resTag = None
+                if i in namedItems:
+                    resTag = namedItems[i]
+                if not resTag:
+                    if namedItemsOnly:
+                        continue
+                    else:
+                        resTag = "ITEM"
+                xmlBodyText = _xml_escape(_ustr(res))
+                out += [ nl, nextLevelIndent, "<", resTag, ">",
+                                                xmlBodyText,
+                                                "</", resTag, ">" ]
+
+        out += [ nl, indent, "</", selfTag, ">" ]
+        return "".join(out)
+
+    def __lookup(self,sub):
+        for k,vlist in self.__tokdict.items():
+            for v,loc in vlist:
+                if sub is v:
+                    return k
+        return None
+
+    def getName(self):
+        """
+        Returns the results name for this token expression. Useful when several 
+        different expressions might match at a particular location.
+
+        Example::
+            integer = Word(nums)
+            ssn_expr = Regex(r"\d\d\d-\d\d-\d\d\d\d")
+            house_number_expr = Suppress('#') + Word(nums, alphanums)
+            user_data = (Group(house_number_expr)("house_number") 
+                        | Group(ssn_expr)("ssn")
+                        | Group(integer)("age"))
+            user_info = OneOrMore(user_data)
+            
+            result = user_info.parseString("22 111-22-3333 #221B")
+            for item in result:
+                print(item.getName(), ':', item[0])
+        prints::
+            age : 22
+            ssn : 111-22-3333
+            house_number : 221B
+        """
+        if self.__name:
+            return self.__name
+        elif self.__parent:
+            par = self.__parent()
+            if par:
+                return par.__lookup(self)
+            else:
+                return None
+        elif (len(self) == 1 and
+               len(self.__tokdict) == 1 and
+               next(iter(self.__tokdict.values()))[0][1] in (0,-1)):
+            return next(iter(self.__tokdict.keys()))
+        else:
+            return None
+
+    def dump(self, indent='', depth=0, full=True):
+        """
+        Diagnostic method for listing out the contents of a C{ParseResults}.
+        Accepts an optional C{indent} argument so that this string can be embedded
+        in a nested display of other data.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(result.dump())
+        prints::
+            ['12', '/', '31', '/', '1999']
+            - day: 1999
+            - month: 31
+            - year: 12
+        """
+        out = []
+        NL = '\n'
+        out.append( indent+_ustr(self.asList()) )
+        if full:
+            if self.haskeys():
+                items = sorted((str(k), v) for k,v in self.items())
+                for k,v in items:
+                    if out:
+                        out.append(NL)
+                    out.append( "%s%s- %s: " % (indent,('  '*depth), k) )
+                    if isinstance(v,ParseResults):
+                        if v:
+                            out.append( v.dump(indent,depth+1) )
+                        else:
+                            out.append(_ustr(v))
+                    else:
+                        out.append(repr(v))
+            elif any(isinstance(vv,ParseResults) for vv in self):
+                v = self
+                for i,vv in enumerate(v):
+                    if isinstance(vv,ParseResults):
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),vv.dump(indent,depth+1) ))
+                    else:
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),_ustr(vv)))
+            
+        return "".join(out)
+
+    def pprint(self, *args, **kwargs):
+        """
+        Pretty-printer for parsed results as a list, using the C{pprint} module.
+        Accepts additional positional or keyword args as defined for the 
+        C{pprint.pprint} method. (U{http://docs.python.org/3/library/pprint.html#pprint.pprint})
+
+        Example::
+            ident = Word(alphas, alphanums)
+            num = Word(nums)
+            func = Forward()
+            term = ident | num | Group('(' + func + ')')
+            func <<= ident + Group(Optional(delimitedList(term)))
+            result = func.parseString("fna a,b,(fnb c,d,200),100")
+            result.pprint(width=40)
+        prints::
+            ['fna',
+             ['a',
+              'b',
+              ['(', 'fnb', ['c', 'd', '200'], ')'],
+              '100']]
+        """
+        pprint.pprint(self.asList(), *args, **kwargs)
+
+    # add support for pickle protocol
+    def __getstate__(self):
+        return ( self.__toklist,
+                 ( self.__tokdict.copy(),
+                   self.__parent is not None and self.__parent() or None,
+                   self.__accumNames,
+                   self.__name ) )
+
+    def __setstate__(self,state):
+        self.__toklist = state[0]
+        (self.__tokdict,
+         par,
+         inAccumNames,
+         self.__name) = state[1]
+        self.__accumNames = {}
+        self.__accumNames.update(inAccumNames)
+        if par is not None:
+            self.__parent = wkref(par)
+        else:
+            self.__parent = None
+
+    def __getnewargs__(self):
+        return self.__toklist, self.__name, self.__asList, self.__modal
+
+    def __dir__(self):
+        return (dir(type(self)) + list(self.keys()))
+
+collections.MutableMapping.register(ParseResults)
+
+def col (loc,strg):
+    """Returns current column within a string, counting newlines as line separators.
+   The first column is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    s = strg
+    return 1 if 0<loc<len(s) and s[loc-1] == '\n' else loc - s.rfind("\n", 0, loc)
+
+def lineno(loc,strg):
+    """Returns current line number within a string, counting newlines as line separators.
+   The first line is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return strg.count("\n",0,loc) + 1
+
+def line( loc, strg ):
+    """Returns the line of text containing loc within a string, counting newlines as line separators.
+       """
+    lastCR = strg.rfind("\n", 0, loc)
+    nextCR = strg.find("\n", loc)
+    if nextCR >= 0:
+        return strg[lastCR+1:nextCR]
+    else:
+        return strg[lastCR+1:]
+
+def _defaultStartDebugAction( instring, loc, expr ):
+    print (("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) )))
+
+def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
+    print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
+
+def _defaultExceptionDebugAction( instring, loc, expr, exc ):
+    print ("Exception raised:" + _ustr(exc))
+
+def nullDebugAction(*args):
+    """'Do-nothing' debug action, to suppress debugging output during parsing."""
+    pass
+
+# Only works on Python 3.x - nonlocal is toxic to Python 2 installs
+#~ 'decorator to trim function calls to match the arity of the target'
+#~ def _trim_arity(func, maxargs=3):
+    #~ if func in singleArgBuiltins:
+        #~ return lambda s,l,t: func(t)
+    #~ limit = 0
+    #~ foundArity = False
+    #~ def wrapper(*args):
+        #~ nonlocal limit,foundArity
+        #~ while 1:
+            #~ try:
+                #~ ret = func(*args[limit:])
+                #~ foundArity = True
+                #~ return ret
+            #~ except TypeError:
+                #~ if limit == maxargs or foundArity:
+                    #~ raise
+                #~ limit += 1
+                #~ continue
+    #~ return wrapper
+
+# this version is Python 2.x-3.x cross-compatible
+'decorator to trim function calls to match the arity of the target'
+def _trim_arity(func, maxargs=2):
+    if func in singleArgBuiltins:
+        return lambda s,l,t: func(t)
+    limit = [0]
+    foundArity = [False]
+    
+    # traceback return data structure changed in Py3.5 - normalize back to plain tuples
+    if system_version[:2] >= (3,5):
+        def extract_stack(limit=0):
+            # special handling for Python 3.5.0 - extra deep call stack by 1
+            offset = -3 if system_version == (3,5,0) else -2
+            frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
+            return [(frame_summary.filename, frame_summary.lineno)]
+        def extract_tb(tb, limit=0):
+            frames = traceback.extract_tb(tb, limit=limit)
+            frame_summary = frames[-1]
+            return [(frame_summary.filename, frame_summary.lineno)]
+    else:
+        extract_stack = traceback.extract_stack
+        extract_tb = traceback.extract_tb
+    
+    # synthesize what would be returned by traceback.extract_stack at the call to 
+    # user's parse action 'func', so that we don't incur call penalty at parse time
+    
+    LINE_DIFF = 6
+    # IF ANY CODE CHANGES, EVEN JUST COMMENTS OR BLANK LINES, BETWEEN THE NEXT LINE AND 
+    # THE CALL TO FUNC INSIDE WRAPPER, LINE_DIFF MUST BE MODIFIED!!!!
+    this_line = extract_stack(limit=2)[-1]
+    pa_call_line_synth = (this_line[0], this_line[1]+LINE_DIFF)
+
+    def wrapper(*args):
+        while 1:
+            try:
+                ret = func(*args[limit[0]:])
+                foundArity[0] = True
+                return ret
+            except TypeError:
+                # re-raise TypeErrors if they did not come from our arity testing
+                if foundArity[0]:
+                    raise
+                else:
+                    try:
+                        tb = sys.exc_info()[-1]
+                        if not extract_tb(tb, limit=2)[-1][:2] == pa_call_line_synth:
+                            raise
+                    finally:
+                        del tb
+
+                if limit[0] <= maxargs:
+                    limit[0] += 1
+                    continue
+                raise
+
+    # copy func name to wrapper for sensible debug output
+    func_name = "<parse action>"
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    wrapper.__name__ = func_name
+
+    return wrapper
+
+class ParserElement(object):
+    """Abstract base level parser element class."""
+    DEFAULT_WHITE_CHARS = " \n\t\r"
+    verbose_stacktrace = False
+
+    @staticmethod
+    def setDefaultWhitespaceChars( chars ):
+        r"""
+        Overrides the default whitespace chars
+
+        Example::
+            # default whitespace chars are space, <TAB> and newline
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def', 'ghi', 'jkl']
+            
+            # change to just treat newline as significant
+            ParserElement.setDefaultWhitespaceChars(" \t")
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def']
+        """
+        ParserElement.DEFAULT_WHITE_CHARS = chars
+
+    @staticmethod
+    def inlineLiteralsUsing(cls):
+        """
+        Set class to be used for inclusion of string literals into a parser.
+        
+        Example::
+            # default literal class used is Literal
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+
+            # change to Suppress
+            ParserElement.inlineLiteralsUsing(Suppress)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '12', '31']
+        """
+        ParserElement._literalStringClass = cls
+
+    def __init__( self, savelist=False ):
+        self.parseAction = list()
+        self.failAction = None
+        #~ self.name = "<unknown>"  # don't define self.name, let subclasses try/except upcall
+        self.strRepr = None
+        self.resultsName = None
+        self.saveAsList = savelist
+        self.skipWhitespace = True
+        self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        self.copyDefaultWhiteChars = True
+        self.mayReturnEmpty = False # used when checking for left-recursion
+        self.keepTabs = False
+        self.ignoreExprs = list()
+        self.debug = False
+        self.streamlined = False
+        self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
+        self.errmsg = ""
+        self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
+        self.debugActions = ( None, None, None ) #custom debug actions
+        self.re = None
+        self.callPreparse = True # used to avoid redundant calls to preParse
+        self.callDuringTry = False
+
+    def copy( self ):
+        """
+        Make a copy of this C{ParserElement}.  Useful for defining different parse actions
+        for the same parsing pattern, using copies of the original parse element.
+        
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
+            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+            
+            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))
+        prints::
+            [5120, 100, 655360, 268435456]
+        Equivalent form of C{expr.copy()} is just C{expr()}::
+            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+        """
+        cpy = copy.copy( self )
+        cpy.parseAction = self.parseAction[:]
+        cpy.ignoreExprs = self.ignoreExprs[:]
+        if self.copyDefaultWhiteChars:
+            cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        return cpy
+
+    def setName( self, name ):
+        """
+        Define name for this expression, makes debugging and exception messages clearer.
+        
+        Example::
+            Word(nums).parseString("ABC")  # -> Exception: Expected W:(0123...) (at char 0), (line:1, col:1)
+            Word(nums).setName("integer").parseString("ABC")  # -> Exception: Expected integer (at char 0), (line:1, col:1)
+        """
+        self.name = name
+        self.errmsg = "Expected " + self.name
+        if hasattr(self,"exception"):
+            self.exception.msg = self.errmsg
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        """
+        Define name for referencing matching tokens as a nested attribute
+        of the returned parse results.
+        NOTE: this returns a *copy* of the original C{ParserElement} object;
+        this is so that the client can define a basic element, such as an
+        integer, and reference it in multiple places with different names.
+
+        You can also set results names using the abbreviated syntax,
+        C{expr("name")} in place of C{expr.setResultsName("name")} - 
+        see L{I{__call__}<__call__>}.
+
+        Example::
+            date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+
+            # equivalent form:
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+        """
+        newself = self.copy()
+        if name.endswith("*"):
+            name = name[:-1]
+            listAllMatches=True
+        newself.resultsName = name
+        newself.modalResults = not listAllMatches
+        return newself
+
+    def setBreak(self,breakFlag = True):
+        """Method to invoke the Python pdb debugger when this element is
+           about to be parsed. Set C{breakFlag} to True to enable, False to
+           disable.
+        """
+        if breakFlag:
+            _parseMethod = self._parse
+            def breaker(instring, loc, doActions=True, callPreParse=True):
+                import pdb
+                pdb.set_trace()
+                return _parseMethod( instring, loc, doActions, callPreParse )
+            breaker._originalParseMethod = _parseMethod
+            self._parse = breaker
+        else:
+            if hasattr(self._parse,"_originalParseMethod"):
+                self._parse = self._parse._originalParseMethod
+        return self
+
+    def setParseAction( self, *fns, **kwargs ):
+        """
+        Define action to perform when successfully matching parse element definition.
+        Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
+        C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
+         - s   = the original string being parsed (see note below)
+         - loc = the location of the matching substring
+         - toks = a list of the matched tokens, packaged as a C{L{ParseResults}} object
+        If the functions in fns modify the tokens, they can return them as the return
+        value from fn, and the modified list of tokens will replace the original.
+        Otherwise, fn does not need to return any value.
+
+        Optional keyword arguments:
+         - callDuringTry = (default=C{False}) indicate if parse action should be run during lookaheads and alternate testing
+
+        Note: the default parsing behavior is to expand tabs in the input string
+        before starting the parsing process.  See L{I{parseString}<parseString>} for more information
+        on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+        consistent view of the parsed string, the parse location, and line and column
+        positions within the parsed string.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer + '/' + integer + '/' + integer
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+            # use parse action to convert to ints at parse time
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            date_str = integer + '/' + integer + '/' + integer
+
+            # note that integer fields are now ints, not strings
+            date_str.parseString("1999/12/31")  # -> [1999, '/', 12, '/', 31]
+        """
+        self.parseAction = list(map(_trim_arity, list(fns)))
+        self.callDuringTry = kwargs.get("callDuringTry", False)
+        return self
+
+    def addParseAction( self, *fns, **kwargs ):
+        """
+        Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}.
+        
+        See examples in L{I{copy}<copy>}.
+        """
+        self.parseAction += list(map(_trim_arity, list(fns)))
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def addCondition(self, *fns, **kwargs):
+        """Add a boolean predicate function to expression's list of parse actions. See 
+        L{I{setParseAction}<setParseAction>} for function call signatures. Unlike C{setParseAction}, 
+        functions passed to C{addCondition} need to return boolean success/fail of the condition.
+
+        Optional keyword arguments:
+         - message = define a custom message to be used in the raised exception
+         - fatal   = if True, will raise ParseFatalException to stop parsing immediately; otherwise will raise ParseException
+         
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            year_int = integer.copy()
+            year_int.addCondition(lambda toks: toks[0] >= 2000, message="Only support years 2000 and later")
+            date_str = year_int + '/' + integer + '/' + integer
+
+            result = date_str.parseString("1999/12/31")  # -> Exception: Only support years 2000 and later (at char 0), (line:1, col:1)
+        """
+        msg = kwargs.get("message", "failed user-defined condition")
+        exc_type = ParseFatalException if kwargs.get("fatal", False) else ParseException
+        for fn in fns:
+            def pa(s,l,t):
+                if not bool(_trim_arity(fn)(s,l,t)):
+                    raise exc_type(s,l,msg)
+            self.parseAction.append(pa)
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def setFailAction( self, fn ):
+        """Define action to perform if parsing fails at this expression.
+           Fail acton fn is a callable function that takes the arguments
+           C{fn(s,loc,expr,err)} where:
+            - s = string being parsed
+            - loc = location where expression match was attempted and failed
+            - expr = the parse expression that failed
+            - err = the exception thrown
+           The function returns no value.  It may throw C{L{ParseFatalException}}
+           if it is desired to stop parsing immediately."""
+        self.failAction = fn
+        return self
+
+    def _skipIgnorables( self, instring, loc ):
+        exprsFound = True
+        while exprsFound:
+            exprsFound = False
+            for e in self.ignoreExprs:
+                try:
+                    while 1:
+                        loc,dummy = e._parse( instring, loc )
+                        exprsFound = True
+                except ParseException:
+                    pass
+        return loc
+
+    def preParse( self, instring, loc ):
+        if self.ignoreExprs:
+            loc = self._skipIgnorables( instring, loc )
+
+        if self.skipWhitespace:
+            wt = self.whiteChars
+            instrlen = len(instring)
+            while loc < instrlen and instring[loc] in wt:
+                loc += 1
+
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        return loc, []
+
+    def postParse( self, instring, loc, tokenlist ):
+        return tokenlist
+
+    #~ @profile
+    def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
+        debugging = ( self.debug ) #and doActions )
+
+        if debugging or self.failAction:
+            #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+            if (self.debugActions[0] ):
+                self.debugActions[0]( instring, loc, self )
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            try:
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            except ParseBaseException as err:
+                #~ print ("Exception raised:", err)
+                if self.debugActions[2]:
+                    self.debugActions[2]( instring, tokensStart, self, err )
+                if self.failAction:
+                    self.failAction( instring, tokensStart, self, err )
+                raise
+        else:
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            if self.mayIndexError or loc >= len(instring):
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            else:
+                loc,tokens = self.parseImpl( instring, preloc, doActions )
+
+        tokens = self.postParse( instring, loc, tokens )
+
+        retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
+        if self.parseAction and (doActions or self.callDuringTry):
+            if debugging:
+                try:
+                    for fn in self.parseAction:
+                        tokens = fn( instring, tokensStart, retTokens )
+                        if tokens is not None:
+                            retTokens = ParseResults( tokens,
+                                                      self.resultsName,
+                                                      asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                      modal=self.modalResults )
+                except ParseBaseException as err:
+                    #~ print "Exception raised in user parse action:", err
+                    if (self.debugActions[2] ):
+                        self.debugActions[2]( instring, tokensStart, self, err )
+                    raise
+            else:
+                for fn in self.parseAction:
+                    tokens = fn( instring, tokensStart, retTokens )
+                    if tokens is not None:
+                        retTokens = ParseResults( tokens,
+                                                  self.resultsName,
+                                                  asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                  modal=self.modalResults )
+
+        if debugging:
+            #~ print ("Matched",self,"->",retTokens.asList())
+            if (self.debugActions[1] ):
+                self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
+
+        return loc, retTokens
+
+    def tryParse( self, instring, loc ):
+        try:
+            return self._parse( instring, loc, doActions=False )[0]
+        except ParseFatalException:
+            raise ParseException( instring, loc, self.errmsg, self)
+    
+    def canParseNext(self, instring, loc):
+        try:
+            self.tryParse(instring, loc)
+        except (ParseException, IndexError):
+            return False
+        else:
+            return True
+
+    class _UnboundedCache(object):
+        def __init__(self):
+            cache = {}
+            self.not_in_cache = not_in_cache = object()
+
+            def get(self, key):
+                return cache.get(key, not_in_cache)
+
+            def set(self, key, value):
+                cache[key] = value
+
+            def clear(self):
+                cache.clear()
+
+            self.get = types.MethodType(get, self)
+            self.set = types.MethodType(set, self)
+            self.clear = types.MethodType(clear, self)
+
+    if _OrderedDict is not None:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = _OrderedDict()
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.popitem(False)
+
+                def clear(self):
+                    cache.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    else:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = {}
+                key_fifo = collections.deque([], size)
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.pop(key_fifo.popleft(), None)
+                    key_fifo.append(key)
+
+                def clear(self):
+                    cache.clear()
+                    key_fifo.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    # argument cache for optimizing repeated calls when backtracking through recursive expressions
+    packrat_cache = {} # this is set later by enabledPackrat(); this is here so that resetCache() doesn't fail
+    packrat_cache_lock = RLock()
+    packrat_cache_stats = [0, 0]
+
+    # this method gets repeatedly called during backtracking with the same arguments -
+    # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
+    def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
+        HIT, MISS = 0, 1
+        lookup = (self, instring, loc, callPreParse, doActions)
+        with ParserElement.packrat_cache_lock:
+            cache = ParserElement.packrat_cache
+            value = cache.get(lookup)
+            if value is cache.not_in_cache:
+                ParserElement.packrat_cache_stats[MISS] += 1
+                try:
+                    value = self._parseNoCache(instring, loc, doActions, callPreParse)
+                except ParseBaseException as pe:
+                    # cache a copy of the exception, without the traceback
+                    cache.set(lookup, pe.__class__(*pe.args))
+                    raise
+                else:
+                    cache.set(lookup, (value[0], value[1].copy()))
+                    return value
+            else:
+                ParserElement.packrat_cache_stats[HIT] += 1
+                if isinstance(value, Exception):
+                    raise value
+                return (value[0], value[1].copy())
+
+    _parse = _parseNoCache
+
+    @staticmethod
+    def resetCache():
+        ParserElement.packrat_cache.clear()
+        ParserElement.packrat_cache_stats[:] = [0] * len(ParserElement.packrat_cache_stats)
+
+    _packratEnabled = False
+    @staticmethod
+    def enablePackrat(cache_size_limit=128):
+        """Enables "packrat" parsing, which adds memoizing to the parsing logic.
+           Repeated parse attempts at the same string location (which happens
+           often in many complex grammars) can immediately return a cached value,
+           instead of re-executing parsing/validating code.  Memoizing is done of
+           both valid results and parsing exceptions.
+           
+           Parameters:
+            - cache_size_limit - (default=C{128}) - if an integer value is provided
+              will limit the size of the packrat cache; if None is passed, then
+              the cache size will be unbounded; if 0 is passed, the cache will
+              be effectively disabled.
+            
+           This speedup may break existing programs that use parse actions that
+           have side-effects.  For this reason, packrat parsing is disabled when
+           you first import pyparsing.  To activate the packrat feature, your
+           program must call the class method C{ParserElement.enablePackrat()}.  If
+           your program uses C{psyco} to "compile as you go", you must call
+           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
+           Python will crash.  For best results, call C{enablePackrat()} immediately
+           after importing pyparsing.
+           
+           Example::
+               import pyparsing
+               pyparsing.ParserElement.enablePackrat()
+        """
+        if not ParserElement._packratEnabled:
+            ParserElement._packratEnabled = True
+            if cache_size_limit is None:
+                ParserElement.packrat_cache = ParserElement._UnboundedCache()
+            else:
+                ParserElement.packrat_cache = ParserElement._FifoCache(cache_size_limit)
+            ParserElement._parse = ParserElement._parseCache
+
+    def parseString( self, instring, parseAll=False ):
+        """
+        Execute the parse expression with the given string.
+        This is the main interface to the client code, once the complete
+        expression has been built.
+
+        If you want the grammar to require that the entire input string be
+        successfully parsed, then set C{parseAll} to True (equivalent to ending
+        the grammar with C{L{StringEnd()}}).
+
+        Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
+        in order to report proper column numbers in parse actions.
+        If the input string contains tabs and
+        the grammar uses parse actions that use the C{loc} argument to index into the
+        string being parsed, you can ensure you have a consistent view of the input
+        string by:
+         - calling C{parseWithTabs} on your grammar before calling C{parseString}
+           (see L{I{parseWithTabs}<parseWithTabs>})
+         - define your parse action using the full C{(s,loc,toks)} signature, and
+           reference the input string using the parse action's C{s} argument
+         - explictly expand the tabs in your input string before calling
+           C{parseString}
+        
+        Example::
+            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
+            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
+        """
+        ParserElement.resetCache()
+        if not self.streamlined:
+            self.streamline()
+            #~ self.saveAsList = True
+        for e in self.ignoreExprs:
+            e.streamline()
+        if not self.keepTabs:
+            instring = instring.expandtabs()
+        try:
+            loc, tokens = self._parse( instring, 0 )
+            if parseAll:
+                loc = self.preParse( instring, loc )
+                se = Empty() + StringEnd()
+                se._parse( instring, loc )
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+        else:
+            return tokens
+
+    def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
+        """
+        Scan the input string for expression matches.  Each match will return the
+        matching tokens, start location, and end location.  May be called with optional
+        C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
+        C{overlap} is specified, then overlapping matches will be reported.
+
+        Note that the start and end locations are reported relative to the string
+        being parsed.  See L{I{parseString}<parseString>} for more information on parsing
+        strings with embedded tabs.
+
+        Example::
+            source = "sldjf123lsdjjkf345sldkjf879lkjsfd987"
+            print(source)
+            for tokens,start,end in Word(alphas).scanString(source):
+                print(' '*start + '^'*(end-start))
+                print(' '*start + tokens[0])
+        
+        prints::
+        
+            sldjf123lsdjjkf345sldkjf879lkjsfd987
+            ^^^^^
+            sldjf
+                    ^^^^^^^
+                    lsdjjkf
+                              ^^^^^^
+                              sldkjf
+                                       ^^^^^^
+                                       lkjsfd
+        """
+        if not self.streamlined:
+            self.streamline()
+        for e in self.ignoreExprs:
+            e.streamline()
+
+        if not self.keepTabs:
+            instring = _ustr(instring).expandtabs()
+        instrlen = len(instring)
+        loc = 0
+        preparseFn = self.preParse
+        parseFn = self._parse
+        ParserElement.resetCache()
+        matches = 0
+        try:
+            while loc <= instrlen and matches < maxMatches:
+                try:
+                    preloc = preparseFn( instring, loc )
+                    nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
+                except ParseException:
+                    loc = preloc+1
+                else:
+                    if nextLoc > loc:
+                        matches += 1
+                        yield tokens, preloc, nextLoc
+                        if overlap:
+                            nextloc = preparseFn( instring, loc )
+                            if nextloc > loc:
+                                loc = nextLoc
+                            else:
+                                loc += 1
+                        else:
+                            loc = nextLoc
+                    else:
+                        loc = preloc+1
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def transformString( self, instring ):
+        """
+        Extension to C{L{scanString}}, to modify matching text with modified tokens that may
+        be returned from a parse action.  To use C{transformString}, define a grammar and
+        attach a parse action to it that modifies the returned token list.
+        Invoking C{transformString()} on a target string will then scan for matches,
+        and replace the matched text patterns according to the logic in the parse
+        action.  C{transformString()} returns the resulting transformed string.
+        
+        Example::
+            wd = Word(alphas)
+            wd.setParseAction(lambda toks: toks[0].title())
+            
+            print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york."))
+        Prints::
+            Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York.
+        """
+        out = []
+        lastE = 0
+        # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
+        # keep string locs straight between transformString and scanString
+        self.keepTabs = True
+        try:
+            for t,s,e in self.scanString( instring ):
+                out.append( instring[lastE:s] )
+                if t:
+                    if isinstance(t,ParseResults):
+                        out += t.asList()
+                    elif isinstance(t,list):
+                        out += t
+                    else:
+                        out.append(t)
+                lastE = e
+            out.append(instring[lastE:])
+            out = [o for o in out if o]
+            return "".join(map(_ustr,_flatten(out)))
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def searchString( self, instring, maxMatches=_MAX_INT ):
+        """
+        Another extension to C{L{scanString}}, simplifying the access to the tokens found
+        to match the given parse expression.  May be called with optional
+        C{maxMatches} argument, to clip searching after 'n' matches are found.
+        
+        Example::
+            # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters
+            cap_word = Word(alphas.upper(), alphas.lower())
+            
+            print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))
+        prints::
+            ['More', 'Iron', 'Lead', 'Gold', 'I']
+        """
+        try:
+            return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def split(self, instring, maxsplit=_MAX_INT, includeSeparators=False):
+        """
+        Generator method to split a string using the given expression as a separator.
+        May be called with optional C{maxsplit} argument, to limit the number of splits;
+        and the optional C{includeSeparators} argument (default=C{False}), if the separating
+        matching text should be included in the split results.
+        
+        Example::        
+            punc = oneOf(list(".,;:/-!?"))
+            print(list(punc.split("This, this?, this sentence, is badly punctuated!")))
+        prints::
+            ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
+        """
+        splits = 0
+        last = 0
+        for t,s,e in self.scanString(instring, maxMatches=maxsplit):
+            yield instring[last:s]
+            if includeSeparators:
+                yield t[0]
+            last = e
+        yield instring[last:]
+
+    def __add__(self, other ):
+        """
+        Implementation of + operator - returns C{L{And}}. Adding strings to a ParserElement
+        converts them to L{Literal}s by default.
+        
+        Example::
+            greet = Word(alphas) + "," + Word(alphas) + "!"
+            hello = "Hello, World!"
+            print (hello, "->", greet.parseString(hello))
+        Prints::
+            Hello, World! -> ['Hello', ',', 'World', '!']
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, other ] )
+
+    def __radd__(self, other ):
+        """
+        Implementation of + operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other + self
+
+    def __sub__(self, other):
+        """
+        Implementation of - operator, returns C{L{And}} with error stop
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, And._ErrorStop(), other ] )
+
+    def __rsub__(self, other ):
+        """
+        Implementation of - operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other - self
+
+    def __mul__(self,other):
+        """
+        Implementation of * operator, allows use of C{expr * 3} in place of
+        C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
+        tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
+        may also include C{None} as in:
+         - C{expr*(n,None)} or C{expr*(n,)} is equivalent
+              to C{expr*n + L{ZeroOrMore}(expr)}
+              (read as "at least n instances of C{expr}")
+         - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
+              (read as "0 to n instances of C{expr}")
+         - C{expr*(None,None)} is equivalent to C{L{ZeroOrMore}(expr)}
+         - C{expr*(1,None)} is equivalent to C{L{OneOrMore}(expr)}
+
+        Note that C{expr*(None,n)} does not raise an exception if
+        more than n exprs exist in the input stream; that is,
+        C{expr*(None,n)} does not enforce a maximum number of expr
+        occurrences.  If this behavior is desired, then write
+        C{expr*(None,n) + ~expr}
+        """
+        if isinstance(other,int):
+            minElements, optElements = other,0
+        elif isinstance(other,tuple):
+            other = (other + (None, None))[:2]
+            if other[0] is None:
+                other = (0, other[1])
+            if isinstance(other[0],int) and other[1] is None:
+                if other[0] == 0:
+                    return ZeroOrMore(self)
+                if other[0] == 1:
+                    return OneOrMore(self)
+                else:
+                    return self*other[0] + ZeroOrMore(self)
+            elif isinstance(other[0],int) and isinstance(other[1],int):
+                minElements, optElements = other
+                optElements -= minElements
+            else:
+                raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
+        else:
+            raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
+
+        if minElements < 0:
+            raise ValueError("cannot multiply ParserElement by negative value")
+        if optElements < 0:
+            raise ValueError("second tuple value must be greater or equal to first tuple value")
+        if minElements == optElements == 0:
+            raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
+
+        if (optElements):
+            def makeOptionalList(n):
+                if n>1:
+                    return Optional(self + makeOptionalList(n-1))
+                else:
+                    return Optional(self)
+            if minElements:
+                if minElements == 1:
+                    ret = self + makeOptionalList(optElements)
+                else:
+                    ret = And([self]*minElements) + makeOptionalList(optElements)
+            else:
+                ret = makeOptionalList(optElements)
+        else:
+            if minElements == 1:
+                ret = self
+            else:
+                ret = And([self]*minElements)
+        return ret
+
+    def __rmul__(self, other):
+        return self.__mul__(other)
+
+    def __or__(self, other ):
+        """
+        Implementation of | operator - returns C{L{MatchFirst}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return MatchFirst( [ self, other ] )
+
+    def __ror__(self, other ):
+        """
+        Implementation of | operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other | self
+
+    def __xor__(self, other ):
+        """
+        Implementation of ^ operator - returns C{L{Or}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Or( [ self, other ] )
+
+    def __rxor__(self, other ):
+        """
+        Implementation of ^ operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other ^ self
+
+    def __and__(self, other ):
+        """
+        Implementation of & operator - returns C{L{Each}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Each( [ self, other ] )
+
+    def __rand__(self, other ):
+        """
+        Implementation of & operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other & self
+
+    def __invert__( self ):
+        """
+        Implementation of ~ operator - returns C{L{NotAny}}
+        """
+        return NotAny( self )
+
+    def __call__(self, name=None):
+        """
+        Shortcut for C{L{setResultsName}}, with C{listAllMatches=False}.
+        
+        If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
+        passed as C{True}.
+           
+        If C{name} is omitted, same as calling C{L{copy}}.
+
+        Example::
+            # these are equivalent
+            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
+            userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")             
+        """
+        if name is not None:
+            return self.setResultsName(name)
+        else:
+            return self.copy()
+
+    def suppress( self ):
+        """
+        Suppresses the output of this C{ParserElement}; useful to keep punctuation from
+        cluttering up returned output.
+        """
+        return Suppress( self )
+
+    def leaveWhitespace( self ):
+        """
+        Disables the skipping of whitespace before matching the characters in the
+        C{ParserElement}'s defined pattern.  This is normally only used internally by
+        the pyparsing module, but may be needed in some whitespace-sensitive grammars.
+        """
+        self.skipWhitespace = False
+        return self
+
+    def setWhitespaceChars( self, chars ):
+        """
+        Overrides the default whitespace chars
+        """
+        self.skipWhitespace = True
+        self.whiteChars = chars
+        self.copyDefaultWhiteChars = False
+        return self
+
+    def parseWithTabs( self ):
+        """
+        Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
+        Must be called before C{parseString} when the input grammar contains elements that
+        match C{<TAB>} characters.
+        """
+        self.keepTabs = True
+        return self
+
+    def ignore( self, other ):
+        """
+        Define expression to be ignored (e.g., comments) while doing pattern
+        matching; may be called repeatedly, to define multiple comment or other
+        ignorable patterns.
+        
+        Example::
+            patt = OneOrMore(Word(alphas))
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']
+            
+            patt.ignore(cStyleComment)
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
+        """
+        if isinstance(other, basestring):
+            other = Suppress(other)
+
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                self.ignoreExprs.append(other)
+        else:
+            self.ignoreExprs.append( Suppress( other.copy() ) )
+        return self
+
+    def setDebugActions( self, startAction, successAction, exceptionAction ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        """
+        self.debugActions = (startAction or _defaultStartDebugAction,
+                             successAction or _defaultSuccessDebugAction,
+                             exceptionAction or _defaultExceptionDebugAction)
+        self.debug = True
+        return self
+
+    def setDebug( self, flag=True ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        Set C{flag} to True to enable, False to disable.
+
+        Example::
+            wd = Word(alphas).setName("alphaword")
+            integer = Word(nums).setName("numword")
+            term = wd | integer
+            
+            # turn on debugging for wd
+            wd.setDebug()
+
+            OneOrMore(term).parseString("abc 123 xyz 890")
+        
+        prints::
+            Match alphaword at loc 0(1,1)
+            Matched alphaword -> ['abc']
+            Match alphaword at loc 3(1,4)
+            Exception raised:Expected alphaword (at char 4), (line:1, col:5)
+            Match alphaword at loc 7(1,8)
+            Matched alphaword -> ['xyz']
+            Match alphaword at loc 11(1,12)
+            Exception raised:Expected alphaword (at char 12), (line:1, col:13)
+            Match alphaword at loc 15(1,16)
+            Exception raised:Expected alphaword (at char 15), (line:1, col:16)
+
+        The output shown is that produced by the default debug actions - custom debug actions can be
+        specified using L{setDebugActions}. Prior to attempting
+        to match the C{wd} expression, the debugging message C{"Match <exprname> at loc <n>(<line>,<col>)"}
+        is shown. Then if the parse succeeds, a C{"Matched"} message is shown, or an C{"Exception raised"}
+        message is shown. Also note the use of L{setName} to assign a human-readable name to the expression,
+        which makes debugging and exception messages easier to understand - for instance, the default
+        name created for the C{Word} expression without calling C{setName} is C{"W:(ABCD...)"}.
+        """
+        if flag:
+            self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
+        else:
+            self.debug = False
+        return self
+
+    def __str__( self ):
+        return self.name
+
+    def __repr__( self ):
+        return _ustr(self)
+
+    def streamline( self ):
+        self.streamlined = True
+        self.strRepr = None
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        pass
+
+    def validate( self, validateTrace=[] ):
+        """
+        Check defined expressions for valid structure, check for infinite recursive definitions.
+        """
+        self.checkRecursion( [] )
+
+    def parseFile( self, file_or_filename, parseAll=False ):
+        """
+        Execute the parse expression on the given file or filename.
+        If a filename is specified (instead of a file object),
+        the entire file is opened, read, and closed before parsing.
+        """
+        try:
+            file_contents = file_or_filename.read()
+        except AttributeError:
+            with open(file_or_filename, "r") as f:
+                file_contents = f.read()
+        try:
+            return self.parseString(file_contents, parseAll)
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def __eq__(self,other):
+        if isinstance(other, ParserElement):
+            return self is other or vars(self) == vars(other)
+        elif isinstance(other, basestring):
+            return self.matches(other)
+        else:
+            return super(ParserElement,self)==other
+
+    def __ne__(self,other):
+        return not (self == other)
+
+    def __hash__(self):
+        return hash(id(self))
+
+    def __req__(self,other):
+        return self == other
+
+    def __rne__(self,other):
+        return not (self == other)
+
+    def matches(self, testString, parseAll=True):
+        """
+        Method for quick testing of a parser against a test string. Good for simple 
+        inline microtests of sub expressions while building up larger parser.
+           
+        Parameters:
+         - testString - to test against this expression for a match
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests
+            
+        Example::
+            expr = Word(nums)
+            assert expr.matches("100")
+        """
+        try:
+            self.parseString(_ustr(testString), parseAll=parseAll)
+            return True
+        except ParseBaseException:
+            return False
+                
+    def runTests(self, tests, parseAll=True, comment='#', fullDump=True, printResults=True, failureTests=False):
+        """
+        Execute the parse expression on a series of test strings, showing each
+        test, the parsed results or where the parse failed. Quick and easy way to
+        run a parse expression against a list of sample strings.
+           
+        Parameters:
+         - tests - a list of separate test strings, or a multiline string of test strings
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests           
+         - comment - (default=C{'#'}) - expression for indicating embedded comments in the test 
+              string; pass None to disable comment filtering
+         - fullDump - (default=C{True}) - dump results as list followed by results names in nested outline;
+              if False, only dump nested list
+         - printResults - (default=C{True}) prints test output to stdout
+         - failureTests - (default=C{False}) indicates if these tests are expected to fail parsing
+
+        Returns: a (success, results) tuple, where success indicates that all tests succeeded
+        (or failed if C{failureTests} is True), and the results contain a list of lines of each 
+        test's output
+        
+        Example::
+            number_expr = pyparsing_common.number.copy()
+
+            result = number_expr.runTests('''
+                # unsigned integer
+                100
+                # negative integer
+                -100
+                # float with scientific notation
+                6.02e23
+                # integer with scientific notation
+                1e-12
+                ''')
+            print("Success" if result[0] else "Failed!")
+
+            result = number_expr.runTests('''
+                # stray character
+                100Z
+                # missing leading digit before '.'
+                -.100
+                # too many '.'
+                3.14.159
+                ''', failureTests=True)
+            print("Success" if result[0] else "Failed!")
+        prints::
+            # unsigned integer
+            100
+            [100]
+
+            # negative integer
+            -100
+            [-100]
+
+            # float with scientific notation
+            6.02e23
+            [6.02e+23]
+
+            # integer with scientific notation
+            1e-12
+            [1e-12]
+
+            Success
+            
+            # stray character
+            100Z
+               ^
+            FAIL: Expected end of text (at char 3), (line:1, col:4)
+
+            # missing leading digit before '.'
+            -.100
+            ^
+            FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1)
+
+            # too many '.'
+            3.14.159
+                ^
+            FAIL: Expected end of text (at char 4), (line:1, col:5)
+
+            Success
+
+        Each test string must be on a single line. If you want to test a string that spans multiple
+        lines, create a test like this::
+
+            expr.runTest(r"this is a test\\n of strings that spans \\n 3 lines")
+        
+        (Note that this is a raw string literal, you must include the leading 'r'.)
+        """
+        if isinstance(tests, basestring):
+            tests = list(map(str.strip, tests.rstrip().splitlines()))
+        if isinstance(comment, basestring):
+            comment = Literal(comment)
+        allResults = []
+        comments = []
+        success = True
+        for t in tests:
+            if comment is not None and comment.matches(t, False) or comments and not t:
+                comments.append(t)
+                continue
+            if not t:
+                continue
+            out = ['\n'.join(comments), t]
+            comments = []
+            try:
+                t = t.replace(r'\n','\n')
+                result = self.parseString(t, parseAll=parseAll)
+                out.append(result.dump(full=fullDump))
+                success = success and not failureTests
+            except ParseBaseException as pe:
+                fatal = "(FATAL)" if isinstance(pe, ParseFatalException) else ""
+                if '\n' in t:
+                    out.append(line(pe.loc, t))
+                    out.append(' '*(col(pe.loc,t)-1) + '^' + fatal)
+                else:
+                    out.append(' '*pe.loc + '^' + fatal)
+                out.append("FAIL: " + str(pe))
+                success = success and failureTests
+                result = pe
+            except Exception as exc:
+                out.append("FAIL-EXCEPTION: " + str(exc))
+                success = success and failureTests
+                result = exc
+
+            if printResults:
+                if fullDump:
+                    out.append('')
+                print('\n'.join(out))
+
+            allResults.append((t, result))
+        
+        return success, allResults
+
+        
+class Token(ParserElement):
+    """
+    Abstract C{ParserElement} subclass, for defining atomic matching patterns.
+    """
+    def __init__( self ):
+        super(Token,self).__init__( savelist=False )
+
+
+class Empty(Token):
+    """
+    An empty token, will always match.
+    """
+    def __init__( self ):
+        super(Empty,self).__init__()
+        self.name = "Empty"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+
+class NoMatch(Token):
+    """
+    A token that will never match.
+    """
+    def __init__( self ):
+        super(NoMatch,self).__init__()
+        self.name = "NoMatch"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.errmsg = "Unmatchable token"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Literal(Token):
+    """
+    Token to exactly match a specified string.
+    
+    Example::
+        Literal('blah').parseString('blah')  # -> ['blah']
+        Literal('blah').parseString('blahfooblah')  # -> ['blah']
+        Literal('blah').parseString('bla')  # -> Exception: Expected "blah"
+    
+    For case-insensitive matching, use L{CaselessLiteral}.
+    
+    For keyword matching (force word break before and after the matched string),
+    use L{Keyword} or L{CaselessKeyword}.
+    """
+    def __init__( self, matchString ):
+        super(Literal,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Literal; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+            self.__class__ = Empty
+        self.name = '"%s"' % _ustr(self.match)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+
+    # Performance tuning: this routine gets called a *lot*
+    # if this is a single character match string  and the first character matches,
+    # short-circuit as quickly as possible, and avoid calling startswith
+    #~ @profile
+    def parseImpl( self, instring, loc, doActions=True ):
+        if (instring[loc] == self.firstMatchChar and
+            (self.matchLen==1 or instring.startswith(self.match,loc)) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+_L = Literal
+ParserElement._literalStringClass = Literal
+
+class Keyword(Token):
+    """
+    Token to exactly match a specified string as a keyword, that is, it must be
+    immediately followed by a non-keyword character.  Compare with C{L{Literal}}:
+     - C{Literal("if")} will match the leading C{'if'} in C{'ifAndOnlyIf'}.
+     - C{Keyword("if")} will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
+    Accepts two optional constructor arguments in addition to the keyword string:
+     - C{identChars} is a string of characters that would be valid identifier characters,
+          defaulting to all alphanumerics + "_" and "$"
+     - C{caseless} allows case-insensitive matching, default is C{False}.
+       
+    Example::
+        Keyword("start").parseString("start")  # -> ['start']
+        Keyword("start").parseString("starting")  # -> Exception
+
+    For case-insensitive matching, use L{CaselessKeyword}.
+    """
+    DEFAULT_KEYWORD_CHARS = alphanums+"_$"
+
+    def __init__( self, matchString, identChars=None, caseless=False ):
+        super(Keyword,self).__init__()
+        if identChars is None:
+            identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Keyword; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+        self.name = '"%s"' % self.match
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+        self.caseless = caseless
+        if caseless:
+            self.caselessmatch = matchString.upper()
+            identChars = identChars.upper()
+        self.identChars = set(identChars)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.caseless:
+            if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+                 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
+                 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        else:
+            if (instring[loc] == self.firstMatchChar and
+                (self.matchLen==1 or instring.startswith(self.match,loc)) and
+                (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
+                (loc == 0 or instring[loc-1] not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+    def copy(self):
+        c = super(Keyword,self).copy()
+        c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        return c
+
+    @staticmethod
+    def setDefaultKeywordChars( chars ):
+        """Overrides the default Keyword chars
+        """
+        Keyword.DEFAULT_KEYWORD_CHARS = chars
+
+class CaselessLiteral(Literal):
+    """
+    Token to match a specified string, ignoring case of letters.
+    Note: the matched results will always be in the case of the given
+    match string, NOT the case of the input text.
+
+    Example::
+        OneOrMore(CaselessLiteral("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessKeyword}.)
+    """
+    def __init__( self, matchString ):
+        super(CaselessLiteral,self).__init__( matchString.upper() )
+        # Preserve the defining literal.
+        self.returnString = matchString
+        self.name = "'%s'" % self.returnString
+        self.errmsg = "Expected " + self.name
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[ loc:loc+self.matchLen ].upper() == self.match:
+            return loc+self.matchLen, self.returnString
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CaselessKeyword(Keyword):
+    """
+    Caseless version of L{Keyword}.
+
+    Example::
+        OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessLiteral}.)
+    """
+    def __init__( self, matchString, identChars=None ):
+        super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+             (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CloseMatch(Token):
+    """
+    A variation on L{Literal} which matches "close" matches, that is, 
+    strings with at most 'n' mismatching characters. C{CloseMatch} takes parameters:
+     - C{match_string} - string to be matched
+     - C{maxMismatches} - (C{default=1}) maximum number of mismatches allowed to count as a match
+    
+    The results from a successful parse will contain the matched text from the input string and the following named results:
+     - C{mismatches} - a list of the positions within the match_string where mismatches were found
+     - C{original} - the original match_string used to compare against the input string
+    
+    If C{mismatches} is an empty list, then the match was an exact match.
+    
+    Example::
+        patt = CloseMatch("ATCATCGAATGGA")
+        patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']})
+        patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1)
+
+        # exact match
+        patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']})
+
+        # close match allowing up to 2 mismatches
+        patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2)
+        patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']})
+    """
+    def __init__(self, match_string, maxMismatches=1):
+        super(CloseMatch,self).__init__()
+        self.name = match_string
+        self.match_string = match_string
+        self.maxMismatches = maxMismatches
+        self.errmsg = "Expected %r (with up to %d mismatches)" % (self.match_string, self.maxMismatches)
+        self.mayIndexError = False
+        self.mayReturnEmpty = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        start = loc
+        instrlen = len(instring)
+        maxloc = start + len(self.match_string)
+
+        if maxloc <= instrlen:
+            match_string = self.match_string
+            match_stringloc = 0
+            mismatches = []
+            maxMismatches = self.maxMismatches
+
+            for match_stringloc,s_m in enumerate(zip(instring[loc:maxloc], self.match_string)):
+                src,mat = s_m
+                if src != mat:
+                    mismatches.append(match_stringloc)
+                    if len(mismatches) > maxMismatches:
+                        break
+            else:
+                loc = match_stringloc + 1
+                results = ParseResults([instring[start:loc]])
+                results['original'] = self.match_string
+                results['mismatches'] = mismatches
+                return loc, results
+
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Word(Token):
+    """
+    Token for matching words composed of allowed character sets.
+    Defined with string containing all allowed initial characters,
+    an optional string containing allowed body characters (if omitted,
+    defaults to the initial character set), and an optional minimum,
+    maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction. An optional
+    C{excludeChars} parameter can list characters that might be found in 
+    the input C{bodyChars} string; useful to define a word of all printables
+    except for one or two characters, for instance.
+    
+    L{srange} is useful for defining custom character set strings for defining 
+    C{Word} expressions, using range notation from regular expression character sets.
+    
+    A common mistake is to use C{Word} to match a specific literal string, as in 
+    C{Word("Address")}. Remember that C{Word} uses the string argument to define
+    I{sets} of matchable characters. This expression would match "Add", "AAA",
+    "dAred", or any other word made up of the characters 'A', 'd', 'r', 'e', and 's'.
+    To match an exact literal string, use L{Literal} or L{Keyword}.
+
+    pyparsing includes helper strings for building Words:
+     - L{alphas}
+     - L{nums}
+     - L{alphanums}
+     - L{hexnums}
+     - L{alphas8bit} (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.)
+     - L{punc8bit} (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.)
+     - L{printables} (any non-whitespace character)
+
+    Example::
+        # a word composed of digits
+        integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9"))
+        
+        # a word with a leading capital, and zero or more lowercase
+        capital_word = Word(alphas.upper(), alphas.lower())
+
+        # hostnames are alphanumeric, with leading alpha, and '-'
+        hostname = Word(alphas, alphanums+'-')
+        
+        # roman numeral (not a strict parser, accepts invalid mix of characters)
+        roman = Word("IVXLCDM")
+        
+        # any string of non-whitespace characters, except for ','
+        csv_value = Word(printables, excludeChars=",")
+    """
+    def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
+        super(Word,self).__init__()
+        if excludeChars:
+            initChars = ''.join(c for c in initChars if c not in excludeChars)
+            if bodyChars:
+                bodyChars = ''.join(c for c in bodyChars if c not in excludeChars)
+        self.initCharsOrig = initChars
+        self.initChars = set(initChars)
+        if bodyChars :
+            self.bodyCharsOrig = bodyChars
+            self.bodyChars = set(bodyChars)
+        else:
+            self.bodyCharsOrig = initChars
+            self.bodyChars = set(initChars)
+
+        self.maxSpecified = max > 0
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.asKeyword = asKeyword
+
+        if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
+            if self.bodyCharsOrig == self.initCharsOrig:
+                self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
+            elif len(self.initCharsOrig) == 1:
+                self.reString = "%s[%s]*" % \
+                                      (re.escape(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            else:
+                self.reString = "[%s][%s]*" % \
+                                      (_escapeRegexRangeChars(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            if self.asKeyword:
+                self.reString = r"\b"+self.reString+r"\b"
+            try:
+                self.re = re.compile( self.reString )
+            except Exception:
+                self.re = None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.re:
+            result = self.re.match(instring,loc)
+            if not result:
+                raise ParseException(instring, loc, self.errmsg, self)
+
+            loc = result.end()
+            return loc, result.group()
+
+        if not(instring[ loc ] in self.initChars):
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        instrlen = len(instring)
+        bodychars = self.bodyChars
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, instrlen )
+        while loc < maxloc and instring[loc] in bodychars:
+            loc += 1
+
+        throwException = False
+        if loc - start < self.minLen:
+            throwException = True
+        if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
+            throwException = True
+        if self.asKeyword:
+            if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
+                throwException = True
+
+        if throwException:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(Word,self).__str__()
+        except Exception:
+            pass
+
+
+        if self.strRepr is None:
+
+            def charsAsStr(s):
+                if len(s)>4:
+                    return s[:4]+"..."
+                else:
+                    return s
+
+            if ( self.initCharsOrig != self.bodyCharsOrig ):
+                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
+            else:
+                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
+
+        return self.strRepr
+
+
+class Regex(Token):
+    """
+    Token for matching strings that match a given regular expression.
+    Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
+    If the given regex contains named groups (defined using C{(?P<name>...)}), these will be preserved as 
+    named parse results.
+
+    Example::
+        realnum = Regex(r"[+-]?\d+\.\d*")
+        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
+        # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
+        roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")
+    """
+    compiledREtype = type(re.compile("[A-Z]"))
+    def __init__( self, pattern, flags=0):
+        """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
+        super(Regex,self).__init__()
+
+        if isinstance(pattern, basestring):
+            if not pattern:
+                warnings.warn("null string passed to Regex; use Empty() instead",
+                        SyntaxWarning, stacklevel=2)
+
+            self.pattern = pattern
+            self.flags = flags
+
+            try:
+                self.re = re.compile(self.pattern, self.flags)
+                self.reString = self.pattern
+            except sre_constants.error:
+                warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
+                    SyntaxWarning, stacklevel=2)
+                raise
+
+        elif isinstance(pattern, Regex.compiledREtype):
+            self.re = pattern
+            self.pattern = \
+            self.reString = str(pattern)
+            self.flags = flags
+            
+        else:
+            raise ValueError("Regex may only be constructed with a string or a compiled RE object")
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = self.re.match(instring,loc)
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        d = result.groupdict()
+        ret = ParseResults(result.group())
+        if d:
+            for k in d:
+                ret[k] = d[k]
+        return loc,ret
+
+    def __str__( self ):
+        try:
+            return super(Regex,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "Re:(%s)" % repr(self.pattern)
+
+        return self.strRepr
+
+
+class QuotedString(Token):
+    r"""
+    Token for matching strings that are delimited by quoting characters.
+    
+    Defined with the following parameters:
+        - quoteChar - string of one or more characters defining the quote delimiting string
+        - escChar - character to escape quotes, typically backslash (default=C{None})
+        - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=C{None})
+        - multiline - boolean indicating whether quotes can span multiple lines (default=C{False})
+        - unquoteResults - boolean indicating whether the matched text should be unquoted (default=C{True})
+        - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=C{None} => same as quoteChar)
+        - convertWhitespaceEscapes - convert escaped whitespace (C{'\t'}, C{'\n'}, etc.) to actual whitespace (default=C{True})
+
+    Example::
+        qs = QuotedString('"')
+        print(qs.searchString('lsjdf "This is the quote" sldjf'))
+        complex_qs = QuotedString('{{', endQuoteChar='}}')
+        print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf'))
+        sql_qs = QuotedString('"', escQuote='""')
+        print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf'))
+    prints::
+        [['This is the quote']]
+        [['This is the "quote"']]
+        [['This is the quote with "embedded" quotes']]
+    """
+    def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None, convertWhitespaceEscapes=True):
+        super(QuotedString,self).__init__()
+
+        # remove white space from quote chars - wont work anyway
+        quoteChar = quoteChar.strip()
+        if not quoteChar:
+            warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+            raise SyntaxError()
+
+        if endQuoteChar is None:
+            endQuoteChar = quoteChar
+        else:
+            endQuoteChar = endQuoteChar.strip()
+            if not endQuoteChar:
+                warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+                raise SyntaxError()
+
+        self.quoteChar = quoteChar
+        self.quoteCharLen = len(quoteChar)
+        self.firstQuoteChar = quoteChar[0]
+        self.endQuoteChar = endQuoteChar
+        self.endQuoteCharLen = len(endQuoteChar)
+        self.escChar = escChar
+        self.escQuote = escQuote
+        self.unquoteResults = unquoteResults
+        self.convertWhitespaceEscapes = convertWhitespaceEscapes
+
+        if multiline:
+            self.flags = re.MULTILINE | re.DOTALL
+            self.pattern = r'%s(?:[^%s%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        else:
+            self.flags = 0
+            self.pattern = r'%s(?:[^%s\n\r%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        if len(self.endQuoteChar) > 1:
+            self.pattern += (
+                '|(?:' + ')|(?:'.join("%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
+                                               _escapeRegexRangeChars(self.endQuoteChar[i]))
+                                    for i in range(len(self.endQuoteChar)-1,0,-1)) + ')'
+                )
+        if escQuote:
+            self.pattern += (r'|(?:%s)' % re.escape(escQuote))
+        if escChar:
+            self.pattern += (r'|(?:%s.)' % re.escape(escChar))
+            self.escCharReplacePattern = re.escape(self.escChar)+"(.)"
+        self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
+
+        try:
+            self.re = re.compile(self.pattern, self.flags)
+            self.reString = self.pattern
+        except sre_constants.error:
+            warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
+                SyntaxWarning, stacklevel=2)
+            raise
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        ret = result.group()
+
+        if self.unquoteResults:
+
+            # strip off quotes
+            ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
+
+            if isinstance(ret,basestring):
+                # replace escaped whitespace
+                if '\\' in ret and self.convertWhitespaceEscapes:
+                    ws_map = {
+                        r'\t' : '\t',
+                        r'\n' : '\n',
+                        r'\f' : '\f',
+                        r'\r' : '\r',
+                    }
+                    for wslit,wschar in ws_map.items():
+                        ret = ret.replace(wslit, wschar)
+
+                # replace escaped characters
+                if self.escChar:
+                    ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
+
+                # replace escaped quotes
+                if self.escQuote:
+                    ret = ret.replace(self.escQuote, self.endQuoteChar)
+
+        return loc, ret
+
+    def __str__( self ):
+        try:
+            return super(QuotedString,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
+
+        return self.strRepr
+
+
+class CharsNotIn(Token):
+    """
+    Token for matching words composed of characters I{not} in a given set (will
+    include whitespace in matched characters if not listed in the provided exclusion set - see example).
+    Defined with string containing all disallowed characters, and an optional
+    minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction.
+
+    Example::
+        # define a comma-separated-value as anything that is not a ','
+        csv_value = CharsNotIn(',')
+        print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213"))
+    prints::
+        ['dkls', 'lsdkjf', 's12 34', '@!#', '213']
+    """
+    def __init__( self, notChars, min=1, max=0, exact=0 ):
+        super(CharsNotIn,self).__init__()
+        self.skipWhitespace = False
+        self.notChars = notChars
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = ( self.minLen == 0 )
+        self.mayIndexError = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[loc] in self.notChars:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        notchars = self.notChars
+        maxlen = min( start+self.maxLen, len(instring) )
+        while loc < maxlen and \
+              (instring[loc] not in notchars):
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(CharsNotIn, self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            if len(self.notChars) > 4:
+                self.strRepr = "!W:(%s...)" % self.notChars[:4]
+            else:
+                self.strRepr = "!W:(%s)" % self.notChars
+
+        return self.strRepr
+
+class White(Token):
+    """
+    Special matching class for matching whitespace.  Normally, whitespace is ignored
+    by pyparsing grammars.  This class is included when some whitespace structures
+    are significant.  Define with a string containing the whitespace characters to be
+    matched; default is C{" \\t\\r\\n"}.  Also takes optional C{min}, C{max}, and C{exact} arguments,
+    as defined for the C{L{Word}} class.
+    """
+    whiteStrs = {
+        " " : "<SPC>",
+        "\t": "<TAB>",
+        "\n": "<LF>",
+        "\r": "<CR>",
+        "\f": "<FF>",
+        }
+    def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
+        super(White,self).__init__()
+        self.matchWhite = ws
+        self.setWhitespaceChars( "".join(c for c in self.whiteChars if c not in self.matchWhite) )
+        #~ self.leaveWhitespace()
+        self.name = ("".join(White.whiteStrs[c] for c in self.matchWhite))
+        self.mayReturnEmpty = True
+        self.errmsg = "Expected " + self.name
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not(instring[ loc ] in self.matchWhite):
+            raise ParseException(instring, loc, self.errmsg, self)
+        start = loc
+        loc += 1
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, len(instring) )
+        while loc < maxloc and instring[loc] in self.matchWhite:
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+
+class _PositionToken(Token):
+    def __init__( self ):
+        super(_PositionToken,self).__init__()
+        self.name=self.__class__.__name__
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+class GoToColumn(_PositionToken):
+    """
+    Token to advance to a specific column of input text; useful for tabular report scraping.
+    """
+    def __init__( self, colno ):
+        super(GoToColumn,self).__init__()
+        self.col = colno
+
+    def preParse( self, instring, loc ):
+        if col(loc,instring) != self.col:
+            instrlen = len(instring)
+            if self.ignoreExprs:
+                loc = self._skipIgnorables( instring, loc )
+            while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
+                loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        thiscol = col( loc, instring )
+        if thiscol > self.col:
+            raise ParseException( instring, loc, "Text not in expected column", self )
+        newloc = loc + self.col - thiscol
+        ret = instring[ loc: newloc ]
+        return newloc, ret
+
+
+class LineStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of a line within the parse string
+    
+    Example::
+    
+        test = '''\
+        AAA this line
+        AAA and this line
+          AAA but not this one
+        B AAA and definitely not this one
+        '''
+
+        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
+            print(t)
+    
+    Prints::
+        ['AAA', ' this line']
+        ['AAA', ' and this line']    
+
+    """
+    def __init__( self ):
+        super(LineStart,self).__init__()
+        self.errmsg = "Expected start of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if col(loc, instring) == 1:
+            return loc, []
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class LineEnd(_PositionToken):
+    """
+    Matches if current position is at the end of a line within the parse string
+    """
+    def __init__( self ):
+        super(LineEnd,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected end of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc<len(instring):
+            if instring[loc] == "\n":
+                return loc+1, "\n"
+            else:
+                raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class StringStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of the parse string
+    """
+    def __init__( self ):
+        super(StringStart,self).__init__()
+        self.errmsg = "Expected start of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc != 0:
+            # see if entire string up to here is just whitespace and ignoreables
+            if loc != self.preParse( instring, 0 ):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class StringEnd(_PositionToken):
+    """
+    Matches if current position is at the end of the parse string
+    """
+    def __init__( self ):
+        super(StringEnd,self).__init__()
+        self.errmsg = "Expected end of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc < len(instring):
+            raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        elif loc > len(instring):
+            return loc, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class WordStart(_PositionToken):
+    """
+    Matches if the current position is at the beginning of a Word, and
+    is not preceded by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
+    the string being parsed, or at the beginning of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordStart,self).__init__()
+        self.wordChars = set(wordChars)
+        self.errmsg = "Not at the start of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        if loc != 0:
+            if (instring[loc-1] in self.wordChars or
+                instring[loc] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class WordEnd(_PositionToken):
+    """
+    Matches if the current position is at the end of a Word, and
+    is not followed by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
+    the string being parsed, or at the end of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordEnd,self).__init__()
+        self.wordChars = set(wordChars)
+        self.skipWhitespace = False
+        self.errmsg = "Not at the end of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        instrlen = len(instring)
+        if instrlen>0 and loc<instrlen:
+            if (instring[loc] in self.wordChars or
+                instring[loc-1] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+
+class ParseExpression(ParserElement):
+    """
+    Abstract subclass of ParserElement, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(ParseExpression,self).__init__(savelist)
+        if isinstance( exprs, _generatorType ):
+            exprs = list(exprs)
+
+        if isinstance( exprs, basestring ):
+            self.exprs = [ ParserElement._literalStringClass( exprs ) ]
+        elif isinstance( exprs, collections.Iterable ):
+            exprs = list(exprs)
+            # if sequence of strings provided, wrap with Literal
+            if all(isinstance(expr, basestring) for expr in exprs):
+                exprs = map(ParserElement._literalStringClass, exprs)
+            self.exprs = list(exprs)
+        else:
+            try:
+                self.exprs = list( exprs )
+            except TypeError:
+                self.exprs = [ exprs ]
+        self.callPreparse = False
+
+    def __getitem__( self, i ):
+        return self.exprs[i]
+
+    def append( self, other ):
+        self.exprs.append( other )
+        self.strRepr = None
+        return self
+
+    def leaveWhitespace( self ):
+        """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
+           all contained expressions."""
+        self.skipWhitespace = False
+        self.exprs = [ e.copy() for e in self.exprs ]
+        for e in self.exprs:
+            e.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseExpression, self).ignore( other )
+                for e in self.exprs:
+                    e.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseExpression, self).ignore( other )
+            for e in self.exprs:
+                e.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def __str__( self ):
+        try:
+            return super(ParseExpression,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
+        return self.strRepr
+
+    def streamline( self ):
+        super(ParseExpression,self).streamline()
+
+        for e in self.exprs:
+            e.streamline()
+
+        # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
+        # but only if there are no parse actions or resultsNames on the nested And's
+        # (likewise for Or's and MatchFirst's)
+        if ( len(self.exprs) == 2 ):
+            other = self.exprs[0]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = other.exprs[:] + [ self.exprs[1] ]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+            other = self.exprs[-1]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = self.exprs[:-1] + other.exprs[:]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+        self.errmsg = "Expected " + _ustr(self)
+        
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
+        return ret
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        for e in self.exprs:
+            e.validate(tmp)
+        self.checkRecursion( [] )
+        
+    def copy(self):
+        ret = super(ParseExpression,self).copy()
+        ret.exprs = [e.copy() for e in self.exprs]
+        return ret
+
+class And(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found in the given order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'+'} operator.
+    May also be constructed using the C{'-'} operator, which will suppress backtracking.
+
+    Example::
+        integer = Word(nums)
+        name_expr = OneOrMore(Word(alphas))
+
+        expr = And([integer("id"),name_expr("name"),integer("age")])
+        # more easily written as:
+        expr = integer("id") + name_expr("name") + integer("age")
+    """
+
+    class _ErrorStop(Empty):
+        def __init__(self, *args, **kwargs):
+            super(And._ErrorStop,self).__init__(*args, **kwargs)
+            self.name = '-'
+            self.leaveWhitespace()
+
+    def __init__( self, exprs, savelist = True ):
+        super(And,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.setWhitespaceChars( self.exprs[0].whiteChars )
+        self.skipWhitespace = self.exprs[0].skipWhitespace
+        self.callPreparse = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        # pass False as last arg to _parse for first element, since we already
+        # pre-parsed the string as part of our And pre-parsing
+        loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
+        errorStop = False
+        for e in self.exprs[1:]:
+            if isinstance(e, And._ErrorStop):
+                errorStop = True
+                continue
+            if errorStop:
+                try:
+                    loc, exprtokens = e._parse( instring, loc, doActions )
+                except ParseSyntaxException:
+                    raise
+                except ParseBaseException as pe:
+                    pe.__traceback__ = None
+                    raise ParseSyntaxException._from_exception(pe)
+                except IndexError:
+                    raise ParseSyntaxException(instring, len(instring), self.errmsg, self)
+            else:
+                loc, exprtokens = e._parse( instring, loc, doActions )
+            if exprtokens or exprtokens.haskeys():
+                resultlist += exprtokens
+        return loc, resultlist
+
+    def __iadd__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #And( [ self, other ] )
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+            if not e.mayReturnEmpty:
+                break
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+
+class Or(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the expression that matches the longest string will be used.
+    May be constructed using the C{'^'} operator.
+
+    Example::
+        # construct Or using '^' operator
+        
+        number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789"))
+    prints::
+        [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(Or,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        matches = []
+        for e in self.exprs:
+            try:
+                loc2 = e.tryParse( instring, loc )
+            except ParseException as err:
+                err.__traceback__ = None
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+            else:
+                # save match among all matches, to retry longest to shortest
+                matches.append((loc2, e))
+
+        if matches:
+            matches.sort(key=lambda x: -x[0])
+            for _,e in matches:
+                try:
+                    return e._parse( instring, loc, doActions )
+                except ParseException as err:
+                    err.__traceback__ = None
+                    if err.loc > maxExcLoc:
+                        maxException = err
+                        maxExcLoc = err.loc
+
+        if maxException is not None:
+            maxException.msg = self.errmsg
+            raise maxException
+        else:
+            raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+
+    def __ixor__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #Or( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ^ ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class MatchFirst(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the first one listed is the one that will match.
+    May be constructed using the C{'|'} operator.
+
+    Example::
+        # construct MatchFirst using '|' operator
+        
+        # watch the order of expressions to match
+        number = Word(nums) | Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789")) #  Fail! -> [['123'], ['3'], ['1416'], ['789']]
+
+        # put more selective expression first
+        number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums)
+        print(number.searchString("123 3.1416 789")) #  Better -> [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(MatchFirst,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                ret = e._parse( instring, loc, doActions )
+                return ret
+            except ParseException as err:
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+
+        # only got here if no expression matched, raise exception for match that made it the furthest
+        else:
+            if maxException is not None:
+                maxException.msg = self.errmsg
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+    def __ior__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #MatchFirst( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " | ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class Each(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found, but in any order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'&'} operator.
+
+    Example::
+        color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN")
+        shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON")
+        integer = Word(nums)
+        shape_attr = "shape:" + shape_type("shape")
+        posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn")
+        color_attr = "color:" + color("color")
+        size_attr = "size:" + integer("size")
+
+        # use Each (using operator '&') to accept attributes in any order 
+        # (shape and posn are required, color and size are optional)
+        shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr)
+
+        shape_spec.runTests('''
+            shape: SQUARE color: BLACK posn: 100, 120
+            shape: CIRCLE size: 50 color: BLUE posn: 50,80
+            color:GREEN size:20 shape:TRIANGLE posn:20,40
+            '''
+            )
+    prints::
+        shape: SQUARE color: BLACK posn: 100, 120
+        ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']]
+        - color: BLACK
+        - posn: ['100', ',', '120']
+          - x: 100
+          - y: 120
+        - shape: SQUARE
+
+
+        shape: CIRCLE size: 50 color: BLUE posn: 50,80
+        ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']]
+        - color: BLUE
+        - posn: ['50', ',', '80']
+          - x: 50
+          - y: 80
+        - shape: CIRCLE
+        - size: 50
+
+
+        color: GREEN size: 20 shape: TRIANGLE posn: 20,40
+        ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']]
+        - color: GREEN
+        - posn: ['20', ',', '40']
+          - x: 20
+          - y: 40
+        - shape: TRIANGLE
+        - size: 20
+    """
+    def __init__( self, exprs, savelist = True ):
+        super(Each,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.skipWhitespace = True
+        self.initExprGroups = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.initExprGroups:
+            self.opt1map = dict((id(e.expr),e) for e in self.exprs if isinstance(e,Optional))
+            opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
+            opt2 = [ e for e in self.exprs if e.mayReturnEmpty and not isinstance(e,Optional)]
+            self.optionals = opt1 + opt2
+            self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
+            self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
+            self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
+            self.required += self.multirequired
+            self.initExprGroups = False
+        tmpLoc = loc
+        tmpReqd = self.required[:]
+        tmpOpt  = self.optionals[:]
+        matchOrder = []
+
+        keepMatching = True
+        while keepMatching:
+            tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
+            failed = []
+            for e in tmpExprs:
+                try:
+                    tmpLoc = e.tryParse( instring, tmpLoc )
+                except ParseException:
+                    failed.append(e)
+                else:
+                    matchOrder.append(self.opt1map.get(id(e),e))
+                    if e in tmpReqd:
+                        tmpReqd.remove(e)
+                    elif e in tmpOpt:
+                        tmpOpt.remove(e)
+            if len(failed) == len(tmpExprs):
+                keepMatching = False
+
+        if tmpReqd:
+            missing = ", ".join(_ustr(e) for e in tmpReqd)
+            raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
+
+        # add any unmatched Optionals, in case they have default values defined
+        matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
+
+        resultlist = []
+        for e in matchOrder:
+            loc,results = e._parse(instring,loc,doActions)
+            resultlist.append(results)
+
+        finalResults = sum(resultlist, ParseResults([]))
+        return loc, finalResults
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " & ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class ParseElementEnhance(ParserElement):
+    """
+    Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(ParseElementEnhance,self).__init__(savelist)
+        if isinstance( expr, basestring ):
+            if issubclass(ParserElement._literalStringClass, Token):
+                expr = ParserElement._literalStringClass(expr)
+            else:
+                expr = ParserElement._literalStringClass(Literal(expr))
+        self.expr = expr
+        self.strRepr = None
+        if expr is not None:
+            self.mayIndexError = expr.mayIndexError
+            self.mayReturnEmpty = expr.mayReturnEmpty
+            self.setWhitespaceChars( expr.whiteChars )
+            self.skipWhitespace = expr.skipWhitespace
+            self.saveAsList = expr.saveAsList
+            self.callPreparse = expr.callPreparse
+            self.ignoreExprs.extend(expr.ignoreExprs)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr is not None:
+            return self.expr._parse( instring, loc, doActions, callPreParse=False )
+        else:
+            raise ParseException("",loc,self.errmsg,self)
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        self.expr = self.expr.copy()
+        if self.expr is not None:
+            self.expr.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseElementEnhance, self).ignore( other )
+                if self.expr is not None:
+                    self.expr.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseElementEnhance, self).ignore( other )
+            if self.expr is not None:
+                self.expr.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def streamline( self ):
+        super(ParseElementEnhance,self).streamline()
+        if self.expr is not None:
+            self.expr.streamline()
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        if self in parseElementList:
+            raise RecursiveGrammarException( parseElementList+[self] )
+        subRecCheckList = parseElementList[:] + [ self ]
+        if self.expr is not None:
+            self.expr.checkRecursion( subRecCheckList )
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        if self.expr is not None:
+            self.expr.validate(tmp)
+        self.checkRecursion( [] )
+
+    def __str__( self ):
+        try:
+            return super(ParseElementEnhance,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None and self.expr is not None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
+        return self.strRepr
+
+
+class FollowedBy(ParseElementEnhance):
+    """
+    Lookahead matching of the given parse expression.  C{FollowedBy}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression matches at the current
+    position.  C{FollowedBy} always returns a null token list.
+
+    Example::
+        # use FollowedBy to match a label only if it is followed by a ':'
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint()
+    prints::
+        [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']]
+    """
+    def __init__( self, expr ):
+        super(FollowedBy,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self.expr.tryParse( instring, loc )
+        return loc, []
+
+
+class NotAny(ParseElementEnhance):
+    """
+    Lookahead to disallow matching with the given parse expression.  C{NotAny}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression does I{not} match at the current
+    position.  Also, C{NotAny} does I{not} skip over leading whitespace. C{NotAny}
+    always returns a null token list.  May be constructed using the '~' operator.
+
+    Example::
+        
+    """
+    def __init__( self, expr ):
+        super(NotAny,self).__init__(expr)
+        #~ self.leaveWhitespace()
+        self.skipWhitespace = False  # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
+        self.mayReturnEmpty = True
+        self.errmsg = "Found unwanted token, "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr.canParseNext(instring, loc):
+            raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "~{" + _ustr(self.expr) + "}"
+
+        return self.strRepr
+
+class _MultipleMatch(ParseElementEnhance):
+    def __init__( self, expr, stopOn=None):
+        super(_MultipleMatch, self).__init__(expr)
+        self.saveAsList = True
+        ender = stopOn
+        if isinstance(ender, basestring):
+            ender = ParserElement._literalStringClass(ender)
+        self.not_ender = ~ender if ender is not None else None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self_expr_parse = self.expr._parse
+        self_skip_ignorables = self._skipIgnorables
+        check_ender = self.not_ender is not None
+        if check_ender:
+            try_not_ender = self.not_ender.tryParse
+        
+        # must be at least one (but first see if we are the stopOn sentinel;
+        # if so, fail)
+        if check_ender:
+            try_not_ender(instring, loc)
+        loc, tokens = self_expr_parse( instring, loc, doActions, callPreParse=False )
+        try:
+            hasIgnoreExprs = (not not self.ignoreExprs)
+            while 1:
+                if check_ender:
+                    try_not_ender(instring, loc)
+                if hasIgnoreExprs:
+                    preloc = self_skip_ignorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self_expr_parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.haskeys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+        
+class OneOrMore(_MultipleMatch):
+    """
+    Repetition of one or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match one or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: BLACK"
+        OneOrMore(attr_expr).parseString(text).pprint()  # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']]
+
+        # use stopOn attribute for OneOrMore to avoid reading label string as part of the data
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']]
+        
+        # could also be written as
+        (attr_expr * (1,)).parseString(text).pprint()
+    """
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + _ustr(self.expr) + "}..."
+
+        return self.strRepr
+
+class ZeroOrMore(_MultipleMatch):
+    """
+    Optional repetition of zero or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match zero or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example: similar to L{OneOrMore}
+    """
+    def __init__( self, expr, stopOn=None):
+        super(ZeroOrMore,self).__init__(expr, stopOn=stopOn)
+        self.mayReturnEmpty = True
+        
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            return super(ZeroOrMore, self).parseImpl(instring, loc, doActions)
+        except (ParseException,IndexError):
+            return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]..."
+
+        return self.strRepr
+
+class _NullToken(object):
+    def __bool__(self):
+        return False
+    __nonzero__ = __bool__
+    def __str__(self):
+        return ""
+
+_optionalNotMatched = _NullToken()
+class Optional(ParseElementEnhance):
+    """
+    Optional matching of the given expression.
+
+    Parameters:
+     - expr - expression that must match zero or more times
+     - default (optional) - value to be returned if the optional expression is not found.
+
+    Example::
+        # US postal code can be a 5-digit zip, plus optional 4-digit qualifier
+        zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4)))
+        zip.runTests('''
+            # traditional ZIP code
+            12345
+            
+            # ZIP+4 form
+            12101-0001
+            
+            # invalid ZIP
+            98765-
+            ''')
+    prints::
+        # traditional ZIP code
+        12345
+        ['12345']
+
+        # ZIP+4 form
+        12101-0001
+        ['12101-0001']
+
+        # invalid ZIP
+        98765-
+             ^
+        FAIL: Expected end of text (at char 5), (line:1, col:6)
+    """
+    def __init__( self, expr, default=_optionalNotMatched ):
+        super(Optional,self).__init__( expr, savelist=False )
+        self.saveAsList = self.expr.saveAsList
+        self.defaultValue = default
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        except (ParseException,IndexError):
+            if self.defaultValue is not _optionalNotMatched:
+                if self.expr.resultsName:
+                    tokens = ParseResults([ self.defaultValue ])
+                    tokens[self.expr.resultsName] = self.defaultValue
+                else:
+                    tokens = [ self.defaultValue ]
+            else:
+                tokens = []
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]"
+
+        return self.strRepr
+
+class SkipTo(ParseElementEnhance):
+    """
+    Token for skipping over all undefined text until the matched expression is found.
+
+    Parameters:
+     - expr - target expression marking the end of the data to be skipped
+     - include - (default=C{False}) if True, the target expression is also parsed 
+          (the skipped text and target expression are returned as a 2-element list).
+     - ignore - (default=C{None}) used to define grammars (typically quoted strings and 
+          comments) that might contain false matches to the target expression
+     - failOn - (default=C{None}) define expressions that are not allowed to be 
+          included in the skipped test; if found before the target expression is found, 
+          the SkipTo is not a match
+
+    Example::
+        report = '''
+            Outstanding Issues Report - 1 Jan 2000
+
+               # | Severity | Description                               |  Days Open
+            -----+----------+-------------------------------------------+-----------
+             101 | Critical | Intermittent system crash                 |          6
+              94 | Cosmetic | Spelling error on Login ('log|n')         |         14
+              79 | Minor    | System slow when running too many reports |         47
+            '''
+        integer = Word(nums)
+        SEP = Suppress('|')
+        # use SkipTo to simply match everything up until the next SEP
+        # - ignore quoted strings, so that a '|' character inside a quoted string does not match
+        # - parse action will call token.strip() for each matched token, i.e., the description body
+        string_data = SkipTo(SEP, ignore=quotedString)
+        string_data.setParseAction(tokenMap(str.strip))
+        ticket_expr = (integer("issue_num") + SEP 
+                      + string_data("sev") + SEP 
+                      + string_data("desc") + SEP 
+                      + integer("days_open"))
+        
+        for tkt in ticket_expr.searchString(report):
+            print tkt.dump()
+    prints::
+        ['101', 'Critical', 'Intermittent system crash', '6']
+        - days_open: 6
+        - desc: Intermittent system crash
+        - issue_num: 101
+        - sev: Critical
+        ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14']
+        - days_open: 14
+        - desc: Spelling error on Login ('log|n')
+        - issue_num: 94
+        - sev: Cosmetic
+        ['79', 'Minor', 'System slow when running too many reports', '47']
+        - days_open: 47
+        - desc: System slow when running too many reports
+        - issue_num: 79
+        - sev: Minor
+    """
+    def __init__( self, other, include=False, ignore=None, failOn=None ):
+        super( SkipTo, self ).__init__( other )
+        self.ignoreExpr = ignore
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.includeMatch = include
+        self.asList = False
+        if isinstance(failOn, basestring):
+            self.failOn = ParserElement._literalStringClass(failOn)
+        else:
+            self.failOn = failOn
+        self.errmsg = "No match found for "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        startloc = loc
+        instrlen = len(instring)
+        expr = self.expr
+        expr_parse = self.expr._parse
+        self_failOn_canParseNext = self.failOn.canParseNext if self.failOn is not None else None
+        self_ignoreExpr_tryParse = self.ignoreExpr.tryParse if self.ignoreExpr is not None else None
+        
+        tmploc = loc
+        while tmploc <= instrlen:
+            if self_failOn_canParseNext is not None:
+                # break if failOn expression matches
+                if self_failOn_canParseNext(instring, tmploc):
+                    break
+                    
+            if self_ignoreExpr_tryParse is not None:
+                # advance past ignore expressions
+                while 1:
+                    try:
+                        tmploc = self_ignoreExpr_tryParse(instring, tmploc)
+                    except ParseBaseException:
+                        break
+            
+            try:
+                expr_parse(instring, tmploc, doActions=False, callPreParse=False)
+            except (ParseException, IndexError):
+                # no match, advance loc in string
+                tmploc += 1
+            else:
+                # matched skipto expr, done
+                break
+
+        else:
+            # ran off the end of the input string without matching skipto expr, fail
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        # build up return values
+        loc = tmploc
+        skiptext = instring[startloc:loc]
+        skipresult = ParseResults(skiptext)
+        
+        if self.includeMatch:
+            loc, mat = expr_parse(instring,loc,doActions,callPreParse=False)
+            skipresult += mat
+
+        return loc, skipresult
+
+class Forward(ParseElementEnhance):
+    """
+    Forward declaration of an expression to be defined later -
+    used for recursive grammars, such as algebraic infix notation.
+    When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
+
+    Note: take care when assigning to C{Forward} not to overlook precedence of operators.
+    Specifically, '|' has a lower precedence than '<<', so that::
+        fwdExpr << a | b | c
+    will actually be evaluated as::
+        (fwdExpr << a) | b | c
+    thereby leaving b and c out as parseable alternatives.  It is recommended that you
+    explicitly group the values inserted into the C{Forward}::
+        fwdExpr << (a | b | c)
+    Converting to use the '<<=' operator instead will avoid this problem.
+
+    See L{ParseResults.pprint} for an example of a recursive parser created using
+    C{Forward}.
+    """
+    def __init__( self, other=None ):
+        super(Forward,self).__init__( other, savelist=False )
+
+    def __lshift__( self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass(other)
+        self.expr = other
+        self.strRepr = None
+        self.mayIndexError = self.expr.mayIndexError
+        self.mayReturnEmpty = self.expr.mayReturnEmpty
+        self.setWhitespaceChars( self.expr.whiteChars )
+        self.skipWhitespace = self.expr.skipWhitespace
+        self.saveAsList = self.expr.saveAsList
+        self.ignoreExprs.extend(self.expr.ignoreExprs)
+        return self
+        
+    def __ilshift__(self, other):
+        return self << other
+    
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        return self
+
+    def streamline( self ):
+        if not self.streamlined:
+            self.streamlined = True
+            if self.expr is not None:
+                self.expr.streamline()
+        return self
+
+    def validate( self, validateTrace=[] ):
+        if self not in validateTrace:
+            tmp = validateTrace[:]+[self]
+            if self.expr is not None:
+                self.expr.validate(tmp)
+        self.checkRecursion([])
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+        return self.__class__.__name__ + ": ..."
+
+        # stubbed out for now - creates awful memory and perf issues
+        self._revertClass = self.__class__
+        self.__class__ = _ForwardNoRecurse
+        try:
+            if self.expr is not None:
+                retString = _ustr(self.expr)
+            else:
+                retString = "None"
+        finally:
+            self.__class__ = self._revertClass
+        return self.__class__.__name__ + ": " + retString
+
+    def copy(self):
+        if self.expr is not None:
+            return super(Forward,self).copy()
+        else:
+            ret = Forward()
+            ret <<= self
+            return ret
+
+class _ForwardNoRecurse(Forward):
+    def __str__( self ):
+        return "..."
+
+class TokenConverter(ParseElementEnhance):
+    """
+    Abstract subclass of C{ParseExpression}, for converting parsed results.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(TokenConverter,self).__init__( expr )#, savelist )
+        self.saveAsList = False
+
+class Combine(TokenConverter):
+    """
+    Converter to concatenate all matching tokens to a single string.
+    By default, the matching patterns must also be contiguous in the input string;
+    this can be disabled by specifying C{'adjacent=False'} in the constructor.
+
+    Example::
+        real = Word(nums) + '.' + Word(nums)
+        print(real.parseString('3.1416')) # -> ['3', '.', '1416']
+        # will also erroneously match the following
+        print(real.parseString('3. 1416')) # -> ['3', '.', '1416']
+
+        real = Combine(Word(nums) + '.' + Word(nums))
+        print(real.parseString('3.1416')) # -> ['3.1416']
+        # no match when there are internal spaces
+        print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...)
+    """
+    def __init__( self, expr, joinString="", adjacent=True ):
+        super(Combine,self).__init__( expr )
+        # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
+        if adjacent:
+            self.leaveWhitespace()
+        self.adjacent = adjacent
+        self.skipWhitespace = True
+        self.joinString = joinString
+        self.callPreparse = True
+
+    def ignore( self, other ):
+        if self.adjacent:
+            ParserElement.ignore(self, other)
+        else:
+            super( Combine, self).ignore( other )
+        return self
+
+    def postParse( self, instring, loc, tokenlist ):
+        retToks = tokenlist.copy()
+        del retToks[:]
+        retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
+
+        if self.resultsName and retToks.haskeys():
+            return [ retToks ]
+        else:
+            return retToks
+
+class Group(TokenConverter):
+    """
+    Converter to return the matched tokens as a list - useful for returning tokens of C{L{ZeroOrMore}} and C{L{OneOrMore}} expressions.
+
+    Example::
+        ident = Word(alphas)
+        num = Word(nums)
+        term = ident | num
+        func = ident + Optional(delimitedList(term))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', 'a', 'b', '100']
+
+        func = ident + Group(Optional(delimitedList(term)))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', ['a', 'b', '100']]
+    """
+    def __init__( self, expr ):
+        super(Group,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        return [ tokenlist ]
+
+class Dict(TokenConverter):
+    """
+    Converter to return a repetitive expression as a list, but also as a dictionary.
+    Each element can also be referenced using the first token in the expression as its key.
+    Useful for tabular report scraping when the first column can be used as a item key.
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        # print attributes as plain groups
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names
+        result = Dict(OneOrMore(Group(attr_expr))).parseString(text)
+        print(result.dump())
+        
+        # access named fields as dict entries, or output as dict
+        print(result['shape'])        
+        print(result.asDict())
+    prints::
+        ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap']
+
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'}
+    See more examples at L{ParseResults} of accessing fields by results name.
+    """
+    def __init__( self, expr ):
+        super(Dict,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        for i,tok in enumerate(tokenlist):
+            if len(tok) == 0:
+                continue
+            ikey = tok[0]
+            if isinstance(ikey,int):
+                ikey = _ustr(tok[0]).strip()
+            if len(tok)==1:
+                tokenlist[ikey] = _ParseResultsWithOffset("",i)
+            elif len(tok)==2 and not isinstance(tok[1],ParseResults):
+                tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
+            else:
+                dictvalue = tok.copy() #ParseResults(i)
+                del dictvalue[0]
+                if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.haskeys()):
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
+                else:
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
+
+        if self.resultsName:
+            return [ tokenlist ]
+        else:
+            return tokenlist
+
+
+class Suppress(TokenConverter):
+    """
+    Converter for ignoring the results of a parsed expression.
+
+    Example::
+        source = "a, b, c,d"
+        wd = Word(alphas)
+        wd_list1 = wd + ZeroOrMore(',' + wd)
+        print(wd_list1.parseString(source))
+
+        # often, delimiters that are useful during parsing are just in the
+        # way afterward - use Suppress to keep them out of the parsed output
+        wd_list2 = wd + ZeroOrMore(Suppress(',') + wd)
+        print(wd_list2.parseString(source))
+    prints::
+        ['a', ',', 'b', ',', 'c', ',', 'd']
+        ['a', 'b', 'c', 'd']
+    (See also L{delimitedList}.)
+    """
+    def postParse( self, instring, loc, tokenlist ):
+        return []
+
+    def suppress( self ):
+        return self
+
+
+class OnlyOnce(object):
+    """
+    Wrapper for parse actions, to ensure they are only called once.
+    """
+    def __init__(self, methodCall):
+        self.callable = _trim_arity(methodCall)
+        self.called = False
+    def __call__(self,s,l,t):
+        if not self.called:
+            results = self.callable(s,l,t)
+            self.called = True
+            return results
+        raise ParseException(s,l,"")
+    def reset(self):
+        self.called = False
+
+def traceParseAction(f):
+    """
+    Decorator for debugging parse actions. 
+    
+    When the parse action is called, this decorator will print C{">> entering I{method-name}(line:I{current_source_line}, I{parse_location}, I{matched_tokens})".}
+    When the parse action completes, the decorator will print C{"<<"} followed by the returned value, or any exception that the parse action raised.
+
+    Example::
+        wd = Word(alphas)
+
+        @traceParseAction
+        def remove_duplicate_chars(tokens):
+            return ''.join(sorted(set(''.join(tokens)))
+
+        wds = OneOrMore(wd).setParseAction(remove_duplicate_chars)
+        print(wds.parseString("slkdjs sld sldd sdlf sdljf"))
+    prints::
+        >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {}))
+        <<leaving remove_duplicate_chars (ret: 'dfjkls')
+        ['dfjkls']
+    """
+    f = _trim_arity(f)
+    def z(*paArgs):
+        thisFunc = f.__name__
+        s,l,t = paArgs[-3:]
+        if len(paArgs)>3:
+            thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
+        sys.stderr.write( ">>entering %s(line: '%s', %d, %r)\n" % (thisFunc,line(l,s),l,t) )
+        try:
+            ret = f(*paArgs)
+        except Exception as exc:
+            sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
+            raise
+        sys.stderr.write( "<<leaving %s (ret: %r)\n" % (thisFunc,ret) )
+        return ret
+    try:
+        z.__name__ = f.__name__
+    except AttributeError:
+        pass
+    return z
+
+#
+# global helpers
+#
+def delimitedList( expr, delim=",", combine=False ):
+    """
+    Helper to define a delimited list of expressions - the delimiter defaults to ','.
+    By default, the list elements and delimiters can have intervening whitespace, and
+    comments, but this can be overridden by passing C{combine=True} in the constructor.
+    If C{combine} is set to C{True}, the matching tokens are returned as a single token
+    string, with the delimiters included; otherwise, the matching tokens are returned
+    as a list of tokens, with the delimiters suppressed.
+
+    Example::
+        delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc']
+        delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE']
+    """
+    dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
+    if combine:
+        return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
+    else:
+        return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
+
+def countedArray( expr, intExpr=None ):
+    """
+    Helper to define a counted list of expressions.
+    This helper defines a pattern of the form::
+        integer expr expr expr...
+    where the leading integer tells how many expr expressions follow.
+    The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
+    
+    If C{intExpr} is specified, it should be a pyparsing expression that produces an integer value.
+
+    Example::
+        countedArray(Word(alphas)).parseString('2 ab cd ef')  # -> ['ab', 'cd']
+
+        # in this parser, the leading integer value is given in binary,
+        # '10' indicating that 2 values are in the array
+        binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2))
+        countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef')  # -> ['ab', 'cd']
+    """
+    arrayExpr = Forward()
+    def countFieldParseAction(s,l,t):
+        n = t[0]
+        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
+        return []
+    if intExpr is None:
+        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
+    else:
+        intExpr = intExpr.copy()
+    intExpr.setName("arrayLen")
+    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
+    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...')
+
+def _flatten(L):
+    ret = []
+    for i in L:
+        if isinstance(i,list):
+            ret.extend(_flatten(i))
+        else:
+            ret.append(i)
+    return ret
+
+def matchPreviousLiteral(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousLiteral(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
+    previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
+    If this is not desired, use C{matchPreviousExpr}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    def copyTokenToRepeater(s,l,t):
+        if t:
+            if len(t) == 1:
+                rep << t[0]
+            else:
+                # flatten t tokens
+                tflat = _flatten(t.asList())
+                rep << And(Literal(tt) for tt in tflat)
+        else:
+            rep << Empty()
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def matchPreviousExpr(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousExpr(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
+    expressions, will I{not} match the leading C{"1:1"} in C{"1:10"};
+    the expressions are evaluated first, and then compared, so
+    C{"1"} is compared with C{"10"}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    e2 = expr.copy()
+    rep <<= e2
+    def copyTokenToRepeater(s,l,t):
+        matchTokens = _flatten(t.asList())
+        def mustMatchTheseTokens(s,l,t):
+            theseTokens = _flatten(t.asList())
+            if  theseTokens != matchTokens:
+                raise ParseException("",0,"")
+        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def _escapeRegexRangeChars(s):
+    #~  escape these chars: ^-]
+    for c in r"\^-]":
+        s = s.replace(c,_bslash+c)
+    s = s.replace("\n",r"\n")
+    s = s.replace("\t",r"\t")
+    return _ustr(s)
+
+def oneOf( strs, caseless=False, useRegex=True ):
+    """
+    Helper to quickly define a set of alternative Literals, and makes sure to do
+    longest-first testing when there is a conflict, regardless of the input order,
+    but returns a C{L{MatchFirst}} for best performance.
+
+    Parameters:
+     - strs - a string of space-delimited literals, or a collection of string literals
+     - caseless - (default=C{False}) - treat all literals as caseless
+     - useRegex - (default=C{True}) - as an optimization, will generate a Regex
+          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
+          if creating a C{Regex} raises an exception)
+
+    Example::
+        comp_oper = oneOf("< = > <= >= !=")
+        var = Word(alphas)
+        number = Word(nums)
+        term = var | number
+        comparison_expr = term + comp_oper + term
+        print(comparison_expr.searchString("B = 12  AA=23 B<=AA AA>12"))
+    prints::
+        [['B', '=', '12'], ['AA', '=', '23'], ['B', '<=', 'AA'], ['AA', '>', '12']]
+    """
+    if caseless:
+        isequal = ( lambda a,b: a.upper() == b.upper() )
+        masks = ( lambda a,b: b.upper().startswith(a.upper()) )
+        parseElementClass = CaselessLiteral
+    else:
+        isequal = ( lambda a,b: a == b )
+        masks = ( lambda a,b: b.startswith(a) )
+        parseElementClass = Literal
+
+    symbols = []
+    if isinstance(strs,basestring):
+        symbols = strs.split()
+    elif isinstance(strs, collections.Iterable):
+        symbols = list(strs)
+    else:
+        warnings.warn("Invalid argument to oneOf, expected string or iterable",
+                SyntaxWarning, stacklevel=2)
+    if not symbols:
+        return NoMatch()
+
+    i = 0
+    while i < len(symbols)-1:
+        cur = symbols[i]
+        for j,other in enumerate(symbols[i+1:]):
+            if ( isequal(other, cur) ):
+                del symbols[i+j+1]
+                break
+            elif ( masks(cur, other) ):
+                del symbols[i+j+1]
+                symbols.insert(i,other)
+                cur = other
+                break
+        else:
+            i += 1
+
+    if not caseless and useRegex:
+        #~ print (strs,"->", "|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
+        try:
+            if len(symbols)==len("".join(symbols)):
+                return Regex( "[%s]" % "".join(_escapeRegexRangeChars(sym) for sym in symbols) ).setName(' | '.join(symbols))
+            else:
+                return Regex( "|".join(re.escape(sym) for sym in symbols) ).setName(' | '.join(symbols))
+        except Exception:
+            warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
+                    SyntaxWarning, stacklevel=2)
+
+
+    # last resort, just use MatchFirst
+    return MatchFirst(parseElementClass(sym) for sym in symbols).setName(' | '.join(symbols))
+
+def dictOf( key, value ):
+    """
+    Helper to easily and clearly define a dictionary by specifying the respective patterns
+    for the key and value.  Takes care of defining the C{L{Dict}}, C{L{ZeroOrMore}}, and C{L{Group}} tokens
+    in the proper order.  The key pattern can include delimiting markers or punctuation,
+    as long as they are suppressed, thereby leaving the significant key text.  The value
+    pattern can include named results, so that the C{Dict} results can include named token
+    fields.
+
+    Example::
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        attr_label = label
+        attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)
+
+        # similar to Dict, but simpler call format
+        result = dictOf(attr_label, attr_value).parseString(text)
+        print(result.dump())
+        print(result['shape'])
+        print(result.shape)  # object attribute access works too
+        print(result.asDict())
+    prints::
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        SQUARE
+        {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'}
+    """
+    return Dict( ZeroOrMore( Group ( key + value ) ) )
+
+def originalTextFor(expr, asString=True):
+    """
+    Helper to return the original, untokenized text for a given expression.  Useful to
+    restore the parsed fields of an HTML start tag into the raw tag text itself, or to
+    revert separate tokens with intervening whitespace back to the original matching
+    input text. By default, returns astring containing the original parsed text.  
+       
+    If the optional C{asString} argument is passed as C{False}, then the return value is a 
+    C{L{ParseResults}} containing any results names that were originally matched, and a 
+    single token containing the original matched text from the input string.  So if 
+    the expression passed to C{L{originalTextFor}} contains expressions with defined
+    results names, you must set C{asString} to C{False} if you want to preserve those
+    results name values.
+
+    Example::
+        src = "this is test <b> bold <i>text</i> </b> normal text "
+        for tag in ("b","i"):
+            opener,closer = makeHTMLTags(tag)
+            patt = originalTextFor(opener + SkipTo(closer) + closer)
+            print(patt.searchString(src)[0])
+    prints::
+        ['<b> bold <i>text</i> </b>']
+        ['<i>text</i>']
+    """
+    locMarker = Empty().setParseAction(lambda s,loc,t: loc)
+    endlocMarker = locMarker.copy()
+    endlocMarker.callPreparse = False
+    matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
+    if asString:
+        extractText = lambda s,l,t: s[t._original_start:t._original_end]
+    else:
+        def extractText(s,l,t):
+            t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]]
+    matchExpr.setParseAction(extractText)
+    matchExpr.ignoreExprs = expr.ignoreExprs
+    return matchExpr
+
+def ungroup(expr): 
+    """
+    Helper to undo pyparsing's default grouping of And expressions, even
+    if all but one are non-empty.
+    """
+    return TokenConverter(expr).setParseAction(lambda t:t[0])
+
+def locatedExpr(expr):
+    """
+    Helper to decorate a returned token with its starting and ending locations in the input string.
+    This helper adds the following results names:
+     - locn_start = location where matched expression begins
+     - locn_end = location where matched expression ends
+     - value = the actual parsed results
+
+    Be careful if the input text contains C{<TAB>} characters, you may want to call
+    C{L{ParserElement.parseWithTabs}}
+
+    Example::
+        wd = Word(alphas)
+        for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"):
+            print(match)
+    prints::
+        [[0, 'ljsdf', 5]]
+        [[8, 'lksdjjf', 15]]
+        [[18, 'lkkjj', 23]]
+    """
+    locator = Empty().setParseAction(lambda s,l,t: l)
+    return Group(locator("locn_start") + expr("value") + locator.copy().leaveWhitespace()("locn_end"))
+
+
+# convenience constants for positional expressions
+empty       = Empty().setName("empty")
+lineStart   = LineStart().setName("lineStart")
+lineEnd     = LineEnd().setName("lineEnd")
+stringStart = StringStart().setName("stringStart")
+stringEnd   = StringEnd().setName("stringEnd")
+
+_escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
+_escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0].lstrip(r'\0x'),16)))
+_escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
+_singleChar = _escapedPunc | _escapedHexChar | _escapedOctChar | Word(printables, excludeChars=r'\]', exact=1) | Regex(r"\w", re.UNICODE)
+_charRange = Group(_singleChar + Suppress("-") + _singleChar)
+_reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange | _singleChar ) ).setResultsName("body") + "]"
+
+def srange(s):
+    r"""
+    Helper to easily define string ranges for use in Word construction.  Borrows
+    syntax from regexp '[]' string range definitions::
+        srange("[0-9]")   -> "0123456789"
+        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
+        srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
+    The input string must be enclosed in []'s, and the returned string is the expanded
+    character set joined into a single string.
+    The values enclosed in the []'s may be:
+     - a single character
+     - an escaped character with a leading backslash (such as C{\-} or C{\]})
+     - an escaped hex character with a leading C{'\x'} (C{\x21}, which is a C{'!'} character) 
+         (C{\0x##} is also supported for backwards compatibility) 
+     - an escaped octal character with a leading C{'\0'} (C{\041}, which is a C{'!'} character)
+     - a range of any of the above, separated by a dash (C{'a-z'}, etc.)
+     - any combination of the above (C{'aeiouy'}, C{'a-zA-Z0-9_$'}, etc.)
+    """
+    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
+    try:
+        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
+    except Exception:
+        return ""
+
+def matchOnlyAtCol(n):
+    """
+    Helper method for defining parse actions that require matching at a specific
+    column in the input text.
+    """
+    def verifyCol(strg,locn,toks):
+        if col(locn,strg) != n:
+            raise ParseException(strg,locn,"matched token not at column %d" % n)
+    return verifyCol
+
+def replaceWith(replStr):
+    """
+    Helper method for common parse actions that simply return a literal value.  Especially
+    useful when used with C{L{transformString<ParserElement.transformString>}()}.
+
+    Example::
+        num = Word(nums).setParseAction(lambda toks: int(toks[0]))
+        na = oneOf("N/A NA").setParseAction(replaceWith(math.nan))
+        term = na | num
+        
+        OneOrMore(term).parseString("324 234 N/A 234") # -> [324, 234, nan, 234]
+    """
+    return lambda s,l,t: [replStr]
+
+def removeQuotes(s,l,t):
+    """
+    Helper parse action for removing quotation marks from parsed quoted strings.
+
+    Example::
+        # by default, quotation marks are included in parsed results
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"]
+
+        # use removeQuotes to strip quotation marks from parsed results
+        quotedString.setParseAction(removeQuotes)
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"]
+    """
+    return t[0][1:-1]
+
+def tokenMap(func, *args):
+    """
+    Helper to define a parse action by mapping a function to all elements of a ParseResults list.If any additional 
+    args are passed, they are forwarded to the given function as additional arguments after
+    the token, as in C{hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))}, which will convert the
+    parsed data to an integer using base 16.
+
+    Example (compare the last to example in L{ParserElement.transformString}::
+        hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16))
+        hex_ints.runTests('''
+            00 11 22 aa FF 0a 0d 1a
+            ''')
+        
+        upperword = Word(alphas).setParseAction(tokenMap(str.upper))
+        OneOrMore(upperword).runTests('''
+            my kingdom for a horse
+            ''')
+
+        wd = Word(alphas).setParseAction(tokenMap(str.title))
+        OneOrMore(wd).setParseAction(' '.join).runTests('''
+            now is the winter of our discontent made glorious summer by this sun of york
+            ''')
+    prints::
+        00 11 22 aa FF 0a 0d 1a
+        [0, 17, 34, 170, 255, 10, 13, 26]
+
+        my kingdom for a horse
+        ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE']
+
+        now is the winter of our discontent made glorious summer by this sun of york
+        ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York']
+    """
+    def pa(s,l,t):
+        return [func(tokn, *args) for tokn in t]
+
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    pa.__name__ = func_name
+
+    return pa
+
+upcaseTokens = tokenMap(lambda t: _ustr(t).upper())
+"""(Deprecated) Helper parse action to convert tokens to upper case. Deprecated in favor of L{pyparsing_common.upcaseTokens}"""
+
+downcaseTokens = tokenMap(lambda t: _ustr(t).lower())
+"""(Deprecated) Helper parse action to convert tokens to lower case. Deprecated in favor of L{pyparsing_common.downcaseTokens}"""
+    
+def _makeTags(tagStr, xml):
+    """Internal helper to construct opening and closing tag expressions, given a tag name"""
+    if isinstance(tagStr,basestring):
+        resname = tagStr
+        tagStr = Keyword(tagStr, caseless=not xml)
+    else:
+        resname = tagStr.name
+
+    tagAttrName = Word(alphas,alphanums+"_-:")
+    if (xml):
+        tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    else:
+        printablesLessRAbrack = "".join(c for c in printables if c not in ">")
+        tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) | Word(printablesLessRAbrack)
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
+                Optional( Suppress("=") + tagAttrValue ) ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    closeTag = Combine(_L("</") + tagStr + ">")
+
+    openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % resname)
+    closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % resname)
+    openTag.tag = resname
+    closeTag.tag = resname
+    return openTag, closeTag
+
+def makeHTMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for HTML, given a tag name. Matches
+    tags in either upper or lower case, attributes with namespaces and with quoted or unquoted values.
+
+    Example::
+        text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+        # makeHTMLTags returns pyparsing expressions for the opening and closing tags as a 2-tuple
+        a,a_end = makeHTMLTags("A")
+        link_expr = a + SkipTo(a_end)("link_text") + a_end
+        
+        for link in link_expr.searchString(text):
+            # attributes in the <A> tag (like "href" shown here) are also accessible as named results
+            print(link.link_text, '->', link.href)
+    prints::
+        pyparsing -> http://pyparsing.wikispaces.com
+    """
+    return _makeTags( tagStr, False )
+
+def makeXMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for XML, given a tag name. Matches
+    tags only in the given upper/lower case.
+
+    Example: similar to L{makeHTMLTags}
+    """
+    return _makeTags( tagStr, True )
+
+def withAttribute(*args,**attrDict):
+    """
+    Helper to create a validating parse action to be used with start tags created
+    with C{L{makeXMLTags}} or C{L{makeHTMLTags}}. Use C{withAttribute} to qualify a starting tag
+    with a required attribute value, to avoid false matches on common tags such as
+    C{<TD>} or C{<DIV>}.
+
+    Call C{withAttribute} with a series of attribute names and values. Specify the list
+    of filter attributes names and values as:
+     - keyword arguments, as in C{(align="right")}, or
+     - as an explicit dict with C{**} operator, when an attribute name is also a Python
+          reserved word, as in C{**{"class":"Customer", "align":"right"}}
+     - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
+    For attribute names with a namespace prefix, you must use the second form.  Attribute
+    names are matched insensitive to upper/lower case.
+       
+    If just testing for C{class} (with or without a namespace), use C{L{withClass}}.
+
+    To verify that the attribute exists, but without specifying a value, pass
+    C{withAttribute.ANY_VALUE} as the value.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div type="grid">1 4 0 1 0</div>
+            <div type="graph">1,3 2,3 1,1</div>
+            <div>this has no type</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+
+        # only match div tag having a type attribute with value "grid"
+        div_grid = div().setParseAction(withAttribute(type="grid"))
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        # construct a match with any div tag having a type attribute, regardless of the value
+        div_any_type = div().setParseAction(withAttribute(type=withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    if args:
+        attrs = args[:]
+    else:
+        attrs = attrDict.items()
+    attrs = [(k,v) for k,v in attrs]
+    def pa(s,l,tokens):
+        for attrName,attrValue in attrs:
+            if attrName not in tokens:
+                raise ParseException(s,l,"no matching attribute " + attrName)
+            if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
+                raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
+                                            (attrName, tokens[attrName], attrValue))
+    return pa
+withAttribute.ANY_VALUE = object()
+
+def withClass(classname, namespace=''):
+    """
+    Simplified version of C{L{withAttribute}} when matching on a div class - made
+    difficult because C{class} is a reserved word in Python.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div class="grid">1 4 0 1 0</div>
+            <div class="graph">1,3 2,3 1,1</div>
+            <div>this <div> has no class</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+        div_grid = div().setParseAction(withClass("grid"))
+        
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        div_any_type = div().setParseAction(withClass(withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    classattr = "%s:class" % namespace if namespace else "class"
+    return withAttribute(**{classattr : classname})        
+
+opAssoc = _Constants()
+opAssoc.LEFT = object()
+opAssoc.RIGHT = object()
+
+def infixNotation( baseExpr, opList, lpar=Suppress('('), rpar=Suppress(')') ):
+    """
+    Helper method for constructing grammars of expressions made up of
+    operators working in a precedence hierarchy.  Operators may be unary or
+    binary, left- or right-associative.  Parse actions can also be attached
+    to operator expressions. The generated parser will also recognize the use 
+    of parentheses to override operator precedences (see example below).
+    
+    Note: if you define a deep operator list, you may see performance issues
+    when using infixNotation. See L{ParserElement.enablePackrat} for a
+    mechanism to potentially improve your parser performance.
+
+    Parameters:
+     - baseExpr - expression representing the most basic element for the nested
+     - opList - list of tuples, one for each operator precedence level in the
+      expression grammar; each tuple is of the form
+      (opExpr, numTerms, rightLeftAssoc, parseAction), where:
+       - opExpr is the pyparsing expression for the operator;
+          may also be a string, which will be converted to a Literal;
+          if numTerms is 3, opExpr is a tuple of two expressions, for the
+          two operators separating the 3 terms
+       - numTerms is the number of terms for this operator (must
+          be 1, 2, or 3)
+       - rightLeftAssoc is the indicator whether the operator is
+          right or left associative, using the pyparsing-defined
+          constants C{opAssoc.RIGHT} and C{opAssoc.LEFT}.
+       - parseAction is the parse action to be associated with
+          expressions matching this operator expression (the
+          parse action tuple member may be omitted)
+     - lpar - expression for matching left-parentheses (default=C{Suppress('(')})
+     - rpar - expression for matching right-parentheses (default=C{Suppress(')')})
+
+    Example::
+        # simple example of four-function arithmetic with ints and variable names
+        integer = pyparsing_common.signed_integer
+        varname = pyparsing_common.identifier 
+        
+        arith_expr = infixNotation(integer | varname,
+            [
+            ('-', 1, opAssoc.RIGHT),
+            (oneOf('* /'), 2, opAssoc.LEFT),
+            (oneOf('+ -'), 2, opAssoc.LEFT),
+            ])
+        
+        arith_expr.runTests('''
+            5+3*6
+            (5+3)*6
+            -2--11
+            ''', fullDump=False)
+    prints::
+        5+3*6
+        [[5, '+', [3, '*', 6]]]
+
+        (5+3)*6
+        [[[5, '+', 3], '*', 6]]
+
+        -2--11
+        [[['-', 2], '-', ['-', 11]]]
+    """
+    ret = Forward()
+    lastExpr = baseExpr | ( lpar + ret + rpar )
+    for i,operDef in enumerate(opList):
+        opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
+        termName = "%s term" % opExpr if arity < 3 else "%s%s term" % opExpr
+        if arity == 3:
+            if opExpr is None or len(opExpr) != 2:
+                raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
+            opExpr1, opExpr2 = opExpr
+        thisExpr = Forward().setName(termName)
+        if rightLeftAssoc == opAssoc.LEFT:
+            if arity == 1:
+                matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
+                            Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        elif rightLeftAssoc == opAssoc.RIGHT:
+            if arity == 1:
+                # try to avoid LR with this extra test
+                if not isinstance(opExpr, Optional):
+                    opExpr = Optional(opExpr)
+                matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
+                            Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        else:
+            raise ValueError("operator must indicate right or left associativity")
+        if pa:
+            matchExpr.setParseAction( pa )
+        thisExpr <<= ( matchExpr.setName(termName) | lastExpr )
+        lastExpr = thisExpr
+    ret <<= lastExpr
+    return ret
+
+operatorPrecedence = infixNotation
+"""(Deprecated) Former name of C{L{infixNotation}}, will be dropped in a future release."""
+
+dblQuotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"').setName("string enclosed in double quotes")
+sglQuotedString = Combine(Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("string enclosed in single quotes")
+quotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"'|
+                       Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("quotedString using single or double quotes")
+unicodeString = Combine(_L('u') + quotedString.copy()).setName("unicode string literal")
+
+def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
+    """
+    Helper method for defining nested lists enclosed in opening and closing
+    delimiters ("(" and ")" are the default).
+
+    Parameters:
+     - opener - opening character for a nested list (default=C{"("}); can also be a pyparsing expression
+     - closer - closing character for a nested list (default=C{")"}); can also be a pyparsing expression
+     - content - expression for items within the nested lists (default=C{None})
+     - ignoreExpr - expression for ignoring opening and closing delimiters (default=C{quotedString})
+
+    If an expression is not provided for the content argument, the nested
+    expression will capture all whitespace-delimited content between delimiters
+    as a list of separate values.
+
+    Use the C{ignoreExpr} argument to define expressions that may contain
+    opening or closing characters that should not be treated as opening
+    or closing characters for nesting, such as quotedString or a comment
+    expression.  Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
+    The default is L{quotedString}, but if no expressions are to be ignored,
+    then pass C{None} for this argument.
+
+    Example::
+        data_type = oneOf("void int short long char float double")
+        decl_data_type = Combine(data_type + Optional(Word('*')))
+        ident = Word(alphas+'_', alphanums+'_')
+        number = pyparsing_common.number
+        arg = Group(decl_data_type + ident)
+        LPAR,RPAR = map(Suppress, "()")
+
+        code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment))
+
+        c_function = (decl_data_type("type") 
+                      + ident("name")
+                      + LPAR + Optional(delimitedList(arg), [])("args") + RPAR 
+                      + code_body("body"))
+        c_function.ignore(cStyleComment)
+        
+        source_code = '''
+            int is_odd(int x) { 
+                return (x%2); 
+            }
+                
+            int dec_to_hex(char hchar) { 
+                if (hchar >= '0' && hchar <= '9') { 
+                    return (ord(hchar)-ord('0')); 
+                } else { 
+                    return (10+ord(hchar)-ord('A'));
+                } 
+            }
+        '''
+        for func in c_function.searchString(source_code):
+            print("%(name)s (%(type)s) args: %(args)s" % func)
+
+    prints::
+        is_odd (int) args: [['int', 'x']]
+        dec_to_hex (int) args: [['char', 'hchar']]
+    """
+    if opener == closer:
+        raise ValueError("opening and closing strings cannot be the same")
+    if content is None:
+        if isinstance(opener,basestring) and isinstance(closer,basestring):
+            if len(opener) == 1 and len(closer)==1:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr +
+                                    CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
+                                ).setParseAction(lambda t:t[0].strip()))
+            else:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr + 
+                                    ~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+        else:
+            raise ValueError("opening and closing arguments must be strings if no content expression is given")
+    ret = Forward()
+    if ignoreExpr is not None:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ignoreExpr | ret | content ) + Suppress(closer) )
+    else:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ret | content )  + Suppress(closer) )
+    ret.setName('nested %s%s expression' % (opener,closer))
+    return ret
+
+def indentedBlock(blockStatementExpr, indentStack, indent=True):
+    """
+    Helper method for defining space-delimited indentation blocks, such as
+    those used to define block statements in Python source code.
+
+    Parameters:
+     - blockStatementExpr - expression defining syntax of statement that
+            is repeated within the indented block
+     - indentStack - list created by caller to manage indentation stack
+            (multiple statementWithIndentedBlock expressions within a single grammar
+            should share a common indentStack)
+     - indent - boolean indicating whether block must be indented beyond the
+            the current level; set to False for block of left-most statements
+            (default=C{True})
+
+    A valid block must contain at least one C{blockStatement}.
+
+    Example::
+        data = '''
+        def A(z):
+          A1
+          B = 100
+          G = A2
+          A2
+          A3
+        B
+        def BB(a,b,c):
+          BB1
+          def BBA():
+            bba1
+            bba2
+            bba3
+        C
+        D
+        def spam(x,y):
+             def eggs(z):
+                 pass
+        '''
+
+
+        indentStack = [1]
+        stmt = Forward()
+
+        identifier = Word(alphas, alphanums)
+        funcDecl = ("def" + identifier + Group( "(" + Optional( delimitedList(identifier) ) + ")" ) + ":")
+        func_body = indentedBlock(stmt, indentStack)
+        funcDef = Group( funcDecl + func_body )
+
+        rvalue = Forward()
+        funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
+        rvalue << (funcCall | identifier | Word(nums))
+        assignment = Group(identifier + "=" + rvalue)
+        stmt << ( funcDef | assignment | identifier )
+
+        module_body = OneOrMore(stmt)
+
+        parseTree = module_body.parseString(data)
+        parseTree.pprint()
+    prints::
+        [['def',
+          'A',
+          ['(', 'z', ')'],
+          ':',
+          [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]],
+         'B',
+         ['def',
+          'BB',
+          ['(', 'a', 'b', 'c', ')'],
+          ':',
+          [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]],
+         'C',
+         'D',
+         ['def',
+          'spam',
+          ['(', 'x', 'y', ')'],
+          ':',
+          [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]] 
+    """
+    def checkPeerIndent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if curCol != indentStack[-1]:
+            if curCol > indentStack[-1]:
+                raise ParseFatalException(s,l,"illegal nesting")
+            raise ParseException(s,l,"not a peer entry")
+
+    def checkSubIndent(s,l,t):
+        curCol = col(l,s)
+        if curCol > indentStack[-1]:
+            indentStack.append( curCol )
+        else:
+            raise ParseException(s,l,"not a subentry")
+
+    def checkUnindent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
+            raise ParseException(s,l,"not an unindent")
+        indentStack.pop()
+
+    NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
+    INDENT = (Empty() + Empty().setParseAction(checkSubIndent)).setName('INDENT')
+    PEER   = Empty().setParseAction(checkPeerIndent).setName('')
+    UNDENT = Empty().setParseAction(checkUnindent).setName('UNINDENT')
+    if indent:
+        smExpr = Group( Optional(NL) +
+            #~ FollowedBy(blockStatementExpr) +
+            INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
+    else:
+        smExpr = Group( Optional(NL) +
+            (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
+    blockStatementExpr.ignore(_bslash + LineEnd())
+    return smExpr.setName('indented block')
+
+alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
+punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
+
+anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:").setName('any tag'))
+_htmlEntityMap = dict(zip("gt lt amp nbsp quot apos".split(),'><& "\''))
+commonHTMLEntity = Regex('&(?P<entity>' + '|'.join(_htmlEntityMap.keys()) +");").setName("common HTML entity")
+def replaceHTMLEntity(t):
+    """Helper parser action to replace common HTML entities with their special characters"""
+    return _htmlEntityMap.get(t.entity)
+
+# it's easy to get these comment structures wrong - they're very common, so may as well make them available
+cStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/').setName("C style comment")
+"Comment of the form C{/* ... */}"
+
+htmlComment = Regex(r"").setName("HTML comment")
+"Comment of the form C{}"
+
+restOfLine = Regex(r".*").leaveWhitespace().setName("rest of line")
+dblSlashComment = Regex(r"//(?:\\\n|[^\n])*").setName("// comment")
+"Comment of the form C{// ... (to end of line)}"
+
+cppStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/'| dblSlashComment).setName("C++ style comment")
+"Comment of either form C{L{cStyleComment}} or C{L{dblSlashComment}}"
+
+javaStyleComment = cppStyleComment
+"Same as C{L{cppStyleComment}}"
+
+pythonStyleComment = Regex(r"#.*").setName("Python style comment")
+"Comment of the form C{# ... (to end of line)}"
+
+_commasepitem = Combine(OneOrMore(Word(printables, excludeChars=',') +
+                                  Optional( Word(" \t") +
+                                            ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
+commaSeparatedList = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("commaSeparatedList")
+"""(Deprecated) Predefined expression of 1 or more printable words or quoted strings, separated by commas.
+   This expression is deprecated in favor of L{pyparsing_common.comma_separated_list}."""
+
+# some other useful expressions - using lower-case class name since we are really using this as a namespace
+class pyparsing_common:
+    """
+    Here are some common low-level expressions that may be useful in jump-starting parser development:
+     - numeric forms (L{integers<integer>}, L{reals<real>}, L{scientific notation<sci_real>})
+     - common L{programming identifiers<identifier>}
+     - network addresses (L{MAC<mac_address>}, L{IPv4<ipv4_address>}, L{IPv6<ipv6_address>})
+     - ISO8601 L{dates<iso8601_date>} and L{datetime<iso8601_datetime>}
+     - L{UUID<uuid>}
+     - L{comma-separated list<comma_separated_list>}
+    Parse actions:
+     - C{L{convertToInteger}}
+     - C{L{convertToFloat}}
+     - C{L{convertToDate}}
+     - C{L{convertToDatetime}}
+     - C{L{stripHTMLTags}}
+     - C{L{upcaseTokens}}
+     - C{L{downcaseTokens}}
+
+    Example::
+        pyparsing_common.number.runTests('''
+            # any int or real number, returned as the appropriate type
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.fnumber.runTests('''
+            # any int or real number, returned as float
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.hex_integer.runTests('''
+            # hex numbers
+            100
+            FF
+            ''')
+
+        pyparsing_common.fraction.runTests('''
+            # fractions
+            1/2
+            -3/4
+            ''')
+
+        pyparsing_common.mixed_integer.runTests('''
+            # mixed fractions
+            1
+            1/2
+            -3/4
+            1-3/4
+            ''')
+
+        import uuid
+        pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+        pyparsing_common.uuid.runTests('''
+            # uuid
+            12345678-1234-5678-1234-567812345678
+            ''')
+    prints::
+        # any int or real number, returned as the appropriate type
+        100
+        [100]
+
+        -100
+        [-100]
+
+        +100
+        [100]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # any int or real number, returned as float
+        100
+        [100.0]
+
+        -100
+        [-100.0]
+
+        +100
+        [100.0]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # hex numbers
+        100
+        [256]
+
+        FF
+        [255]
+
+        # fractions
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        # mixed fractions
+        1
+        [1]
+
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        1-3/4
+        [1.75]
+
+        # uuid
+        12345678-1234-5678-1234-567812345678
+        [UUID('12345678-1234-5678-1234-567812345678')]
+    """
+
+    convertToInteger = tokenMap(int)
+    """
+    Parse action for converting parsed integers to Python int
+    """
+
+    convertToFloat = tokenMap(float)
+    """
+    Parse action for converting parsed numbers to Python float
+    """
+
+    integer = Word(nums).setName("integer").setParseAction(convertToInteger)
+    """expression that parses an unsigned integer, returns an int"""
+
+    hex_integer = Word(hexnums).setName("hex integer").setParseAction(tokenMap(int,16))
+    """expression that parses a hexadecimal integer, returns an int"""
+
+    signed_integer = Regex(r'[+-]?\d+').setName("signed integer").setParseAction(convertToInteger)
+    """expression that parses an integer with optional leading sign, returns an int"""
+
+    fraction = (signed_integer().setParseAction(convertToFloat) + '/' + signed_integer().setParseAction(convertToFloat)).setName("fraction")
+    """fractional expression of an integer divided by an integer, returns a float"""
+    fraction.addParseAction(lambda t: t[0]/t[-1])
+
+    mixed_integer = (fraction | signed_integer + Optional(Optional('-').suppress() + fraction)).setName("fraction or mixed integer-fraction")
+    """mixed integer of the form 'integer - fraction', with optional leading integer, returns float"""
+    mixed_integer.addParseAction(sum)
+
+    real = Regex(r'[+-]?\d+\.\d*').setName("real number").setParseAction(convertToFloat)
+    """expression that parses a floating point number and returns a float"""
+
+    sci_real = Regex(r'[+-]?\d+([eE][+-]?\d+|\.\d*([eE][+-]?\d+)?)').setName("real number with scientific notation").setParseAction(convertToFloat)
+    """expression that parses a floating point number with optional scientific notation and returns a float"""
+
+    # streamlining this expression makes the docs nicer-looking
+    number = (sci_real | real | signed_integer).streamline()
+    """any numeric expression, returns the corresponding Python type"""
+
+    fnumber = Regex(r'[+-]?\d+\.?\d*([eE][+-]?\d+)?').setName("fnumber").setParseAction(convertToFloat)
+    """any int or real number, returned as float"""
+    
+    identifier = Word(alphas+'_', alphanums+'_').setName("identifier")
+    """typical code identifier (leading alpha or '_', followed by 0 or more alphas, nums, or '_')"""
+    
+    ipv4_address = Regex(r'(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})){3}').setName("IPv4 address")
+    "IPv4 address (C{0.0.0.0 - 255.255.255.255})"
+
+    _ipv6_part = Regex(r'[0-9a-fA-F]{1,4}').setName("hex_integer")
+    _full_ipv6_address = (_ipv6_part + (':' + _ipv6_part)*7).setName("full IPv6 address")
+    _short_ipv6_address = (Optional(_ipv6_part + (':' + _ipv6_part)*(0,6)) + "::" + Optional(_ipv6_part + (':' + _ipv6_part)*(0,6))).setName("short IPv6 address")
+    _short_ipv6_address.addCondition(lambda t: sum(1 for tt in t if pyparsing_common._ipv6_part.matches(tt)) < 8)
+    _mixed_ipv6_address = ("::ffff:" + ipv4_address).setName("mixed IPv6 address")
+    ipv6_address = Combine((_full_ipv6_address | _mixed_ipv6_address | _short_ipv6_address).setName("IPv6 address")).setName("IPv6 address")
+    "IPv6 address (long, short, or mixed form)"
+    
+    mac_address = Regex(r'[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}').setName("MAC address")
+    "MAC address xx:xx:xx:xx:xx (may also have '-' or '.' delimiters)"
+
+    @staticmethod
+    def convertToDate(fmt="%Y-%m-%d"):
+        """
+        Helper to create a parse action for converting parsed date string to Python datetime.date
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%d"})
+
+        Example::
+            date_expr = pyparsing_common.iso8601_date.copy()
+            date_expr.setParseAction(pyparsing_common.convertToDate())
+            print(date_expr.parseString("1999-12-31"))
+        prints::
+            [datetime.date(1999, 12, 31)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt).date()
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    @staticmethod
+    def convertToDatetime(fmt="%Y-%m-%dT%H:%M:%S.%f"):
+        """
+        Helper to create a parse action for converting parsed datetime string to Python datetime.datetime
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%dT%H:%M:%S.%f"})
+
+        Example::
+            dt_expr = pyparsing_common.iso8601_datetime.copy()
+            dt_expr.setParseAction(pyparsing_common.convertToDatetime())
+            print(dt_expr.parseString("1999-12-31T23:59:59.999"))
+        prints::
+            [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt)
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    iso8601_date = Regex(r'(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?').setName("ISO8601 date")
+    "ISO8601 date (C{yyyy-mm-dd})"
+
+    iso8601_datetime = Regex(r'(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)[T ](?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d(\.\d*)?)?)?(?P<tz>Z|[+-]\d\d:?\d\d)?').setName("ISO8601 datetime")
+    "ISO8601 datetime (C{yyyy-mm-ddThh:mm:ss.s(Z|+-00:00)}) - trailing seconds, milliseconds, and timezone optional; accepts separating C{'T'} or C{' '}"
+
+    uuid = Regex(r'[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}').setName("UUID")
+    "UUID (C{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx})"
+
+    _html_stripper = anyOpenTag.suppress() | anyCloseTag.suppress()
+    @staticmethod
+    def stripHTMLTags(s, l, tokens):
+        """
+        Parse action to remove HTML tags from web page HTML source
+
+        Example::
+            # strip HTML links from normal text 
+            text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+            td,td_end = makeHTMLTags("TD")
+            table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end
+            
+            print(table_text.parseString(text).body) # -> 'More info at the pyparsing wiki page'
+        """
+        return pyparsing_common._html_stripper.transformString(tokens[0])
+
+    _commasepitem = Combine(OneOrMore(~Literal(",") + ~LineEnd() + Word(printables, excludeChars=',') 
+                                        + Optional( White(" \t") ) ) ).streamline().setName("commaItem")
+    comma_separated_list = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("comma separated list")
+    """Predefined expression of 1 or more printable words or quoted strings, separated by commas."""
+
+    upcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).upper()))
+    """Parse action to convert tokens to upper case."""
+
+    downcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).lower()))
+    """Parse action to convert tokens to lower case."""
+
+
+if __name__ == "__main__":
+
+    selectToken    = CaselessLiteral("select")
+    fromToken      = CaselessLiteral("from")
+
+    ident          = Word(alphas, alphanums + "_$")
+
+    columnName     = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    columnNameList = Group(delimitedList(columnName)).setName("columns")
+    columnSpec     = ('*' | columnNameList)
+
+    tableName      = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    tableNameList  = Group(delimitedList(tableName)).setName("tables")
+    
+    simpleSQL      = selectToken("command") + columnSpec("columns") + fromToken + tableNameList("tables")
+
+    # demo runTests method, including embedded comments in test string
+    simpleSQL.runTests("""
+        # '*' as column list and dotted table name
+        select * from SYS.XYZZY
+
+        # caseless match on "SELECT", and casts back to "select"
+        SELECT * from XYZZY, ABC
+
+        # list of column names, and mixed case SELECT keyword
+        Select AA,BB,CC from Sys.dual
+
+        # multiple tables
+        Select A, B, C from Sys.dual, Table2
+
+        # invalid SELECT keyword - should fail
+        Xelect A, B, C from Sys.dual
+
+        # incomplete command - should fail
+        Select
+
+        # invalid column name - should fail
+        Select ^^^ frox Sys.dual
+
+        """)
+
+    pyparsing_common.number.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    # any int or real number, returned as float
+    pyparsing_common.fnumber.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    pyparsing_common.hex_integer.runTests("""
+        100
+        FF
+        """)
+
+    import uuid
+    pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+    pyparsing_common.uuid.runTests("""
+        12345678-1234-5678-1234-567812345678
+        """)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/re-vendor.py b/venv/lib/python3.5/site-packages/pip/_vendor/re-vendor.py
new file mode 100644
index 0000000..0a52123
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/re-vendor.py
@@ -0,0 +1,34 @@
+import os
+import sys
+import pip
+import glob
+import shutil
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+def usage():
+    print("Usage: re-vendor.py [clean|vendor]")
+    sys.exit(1)
+
+def clean():
+    for fn in os.listdir(here):
+        dirname = os.path.join(here, fn)
+        if os.path.isdir(dirname):
+            shutil.rmtree(dirname)
+    # six is a single file, not a package
+    os.unlink(os.path.join(here, 'six.py'))
+
+def vendor():
+    pip.main(['install', '-t', here, '-r', 'vendor.txt'])
+    for dirname in glob.glob('*.egg-info'):
+        shutil.rmtree(dirname)
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        usage()
+    if sys.argv[1] == 'clean':
+        clean()
+    elif sys.argv[1] == 'vendor':
+        vendor()
+    else:
+        usage()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py
new file mode 100644
index 0000000..44f6836
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py
@@ -0,0 +1,88 @@
+# -*- coding: utf-8 -*-
+
+#   __
+#  /__)  _  _     _   _ _/   _
+# / (   (- (/ (/ (- _)  /  _)
+#          /
+
+"""
+Requests HTTP library
+~~~~~~~~~~~~~~~~~~~~~
+
+Requests is an HTTP library, written in Python, for human beings. Basic GET
+usage:
+
+   >>> import requests
+   >>> r = requests.get('https://www.python.org')
+   >>> r.status_code
+   200
+   >>> 'Python is a programming language' in r.content
+   True
+
+... or POST:
+
+   >>> payload = dict(key1='value1', key2='value2')
+   >>> r = requests.post('http://httpbin.org/post', data=payload)
+   >>> print(r.text)
+   {
+     ...
+     "form": {
+       "key2": "value2",
+       "key1": "value1"
+     },
+     ...
+   }
+
+The other HTTP methods are supported - see `requests.api`. Full documentation
+is at <http://python-requests.org>.
+
+:copyright: (c) 2016 by Kenneth Reitz.
+:license: Apache 2.0, see LICENSE for more details.
+"""
+
+__title__ = 'requests'
+__version__ = '2.11.1'
+__build__ = 0x021101
+__author__ = 'Kenneth Reitz'
+__license__ = 'Apache 2.0'
+__copyright__ = 'Copyright 2016 Kenneth Reitz'
+
+# Attempt to enable urllib3's SNI support, if possible
+# Note: Patched by pip to prevent using the PyOpenSSL module. On Windows this
+#       prevents upgrading cryptography.
+# try:
+#     from .packages.urllib3.contrib import pyopenssl
+#     pyopenssl.inject_into_urllib3()
+# except ImportError:
+#     pass
+
+import warnings
+
+# urllib3's DependencyWarnings should be silenced.
+from .packages.urllib3.exceptions import DependencyWarning
+warnings.simplefilter('ignore', DependencyWarning)
+
+from . import utils
+from .models import Request, Response, PreparedRequest
+from .api import request, get, head, post, patch, put, delete, options
+from .sessions import session, Session
+from .status_codes import codes
+from .exceptions import (
+    RequestException, Timeout, URLRequired,
+    TooManyRedirects, HTTPError, ConnectionError,
+    FileModeWarning, ConnectTimeout, ReadTimeout
+)
+
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+logging.getLogger(__name__).addHandler(NullHandler())
+
+# FileModeWarnings go off per the default.
+warnings.simplefilter('default', FileModeWarning, append=True)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py
new file mode 100644
index 0000000..4a4c4e0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py
@@ -0,0 +1,503 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.adapters
+~~~~~~~~~~~~~~~~~
+
+This module contains the transport adapters that Requests uses to define
+and maintain connections.
+"""
+
+import os.path
+import socket
+
+from .models import Response
+from .packages.urllib3.poolmanager import PoolManager, proxy_from_url
+from .packages.urllib3.response import HTTPResponse
+from .packages.urllib3.util import Timeout as TimeoutSauce
+from .packages.urllib3.util.retry import Retry
+from .compat import urlparse, basestring
+from .utils import (DEFAULT_CA_BUNDLE_PATH, get_encoding_from_headers,
+                    prepend_scheme_if_needed, get_auth_from_url, urldefragauth,
+                    select_proxy, to_native_string)
+from .structures import CaseInsensitiveDict
+from .packages.urllib3.exceptions import ClosedPoolError
+from .packages.urllib3.exceptions import ConnectTimeoutError
+from .packages.urllib3.exceptions import HTTPError as _HTTPError
+from .packages.urllib3.exceptions import MaxRetryError
+from .packages.urllib3.exceptions import NewConnectionError
+from .packages.urllib3.exceptions import ProxyError as _ProxyError
+from .packages.urllib3.exceptions import ProtocolError
+from .packages.urllib3.exceptions import ReadTimeoutError
+from .packages.urllib3.exceptions import SSLError as _SSLError
+from .packages.urllib3.exceptions import ResponseError
+from .cookies import extract_cookies_to_jar
+from .exceptions import (ConnectionError, ConnectTimeout, ReadTimeout, SSLError,
+                         ProxyError, RetryError, InvalidSchema)
+from .auth import _basic_auth_str
+
+try:
+    from .packages.urllib3.contrib.socks import SOCKSProxyManager
+except ImportError:
+    def SOCKSProxyManager(*args, **kwargs):
+        raise InvalidSchema("Missing dependencies for SOCKS support.")
+
+DEFAULT_POOLBLOCK = False
+DEFAULT_POOLSIZE = 10
+DEFAULT_RETRIES = 0
+DEFAULT_POOL_TIMEOUT = None
+
+
+class BaseAdapter(object):
+    """The Base Transport Adapter"""
+
+    def __init__(self):
+        super(BaseAdapter, self).__init__()
+
+    def send(self, request, stream=False, timeout=None, verify=True,
+             cert=None, proxies=None):
+        """Sends PreparedRequest object. Returns Response object.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param stream: (optional) Whether to stream the request content.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param verify: (optional) Whether to verify SSL certificates.
+        :param cert: (optional) Any user-provided SSL certificate to be trusted.
+        :param proxies: (optional) The proxies dictionary to apply to the request.
+        """
+        raise NotImplementedError
+
+    def close(self):
+        """Cleans up adapter specific items."""
+        raise NotImplementedError
+
+
+class HTTPAdapter(BaseAdapter):
+    """The built-in HTTP Adapter for urllib3.
+
+    Provides a general-case interface for Requests sessions to contact HTTP and
+    HTTPS urls by implementing the Transport Adapter interface. This class will
+    usually be created by the :class:`Session <Session>` class under the
+    covers.
+
+    :param pool_connections: The number of urllib3 connection pools to cache.
+    :param pool_maxsize: The maximum number of connections to save in the pool.
+    :param max_retries: The maximum number of retries each connection
+        should attempt. Note, this applies only to failed DNS lookups, socket
+        connections and connection timeouts, never to requests where data has
+        made it to the server. By default, Requests does not retry failed
+        connections. If you need granular control over the conditions under
+        which we retry a request, import urllib3's ``Retry`` class and pass
+        that instead.
+    :param pool_block: Whether the connection pool should block for connections.
+
+    Usage::
+
+      >>> import requests
+      >>> s = requests.Session()
+      >>> a = requests.adapters.HTTPAdapter(max_retries=3)
+      >>> s.mount('http://', a)
+    """
+    __attrs__ = ['max_retries', 'config', '_pool_connections', '_pool_maxsize',
+                 '_pool_block']
+
+    def __init__(self, pool_connections=DEFAULT_POOLSIZE,
+                 pool_maxsize=DEFAULT_POOLSIZE, max_retries=DEFAULT_RETRIES,
+                 pool_block=DEFAULT_POOLBLOCK):
+        if max_retries == DEFAULT_RETRIES:
+            self.max_retries = Retry(0, read=False)
+        else:
+            self.max_retries = Retry.from_int(max_retries)
+        self.config = {}
+        self.proxy_manager = {}
+
+        super(HTTPAdapter, self).__init__()
+
+        self._pool_connections = pool_connections
+        self._pool_maxsize = pool_maxsize
+        self._pool_block = pool_block
+
+        self.init_poolmanager(pool_connections, pool_maxsize, block=pool_block)
+
+    def __getstate__(self):
+        return dict((attr, getattr(self, attr, None)) for attr in
+                    self.__attrs__)
+
+    def __setstate__(self, state):
+        # Can't handle by adding 'proxy_manager' to self.__attrs__ because
+        # self.poolmanager uses a lambda function, which isn't pickleable.
+        self.proxy_manager = {}
+        self.config = {}
+
+        for attr, value in state.items():
+            setattr(self, attr, value)
+
+        self.init_poolmanager(self._pool_connections, self._pool_maxsize,
+                              block=self._pool_block)
+
+    def init_poolmanager(self, connections, maxsize, block=DEFAULT_POOLBLOCK, **pool_kwargs):
+        """Initializes a urllib3 PoolManager.
+
+        This method should not be called from user code, and is only
+        exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param connections: The number of urllib3 connection pools to cache.
+        :param maxsize: The maximum number of connections to save in the pool.
+        :param block: Block when no free connections are available.
+        :param pool_kwargs: Extra keyword arguments used to initialize the Pool Manager.
+        """
+        # save these values for pickling
+        self._pool_connections = connections
+        self._pool_maxsize = maxsize
+        self._pool_block = block
+
+        self.poolmanager = PoolManager(num_pools=connections, maxsize=maxsize,
+                                       block=block, strict=True, **pool_kwargs)
+
+    def proxy_manager_for(self, proxy, **proxy_kwargs):
+        """Return urllib3 ProxyManager for the given proxy.
+
+        This method should not be called from user code, and is only
+        exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param proxy: The proxy to return a urllib3 ProxyManager for.
+        :param proxy_kwargs: Extra keyword arguments used to configure the Proxy Manager.
+        :returns: ProxyManager
+        :rtype: requests.packages.urllib3.ProxyManager
+        """
+        if proxy in self.proxy_manager:
+            manager = self.proxy_manager[proxy]
+        elif proxy.lower().startswith('socks'):
+            username, password = get_auth_from_url(proxy)
+            manager = self.proxy_manager[proxy] = SOCKSProxyManager(
+                proxy,
+                username=username,
+                password=password,
+                num_pools=self._pool_connections,
+                maxsize=self._pool_maxsize,
+                block=self._pool_block,
+                **proxy_kwargs
+            )
+        else:
+            proxy_headers = self.proxy_headers(proxy)
+            manager = self.proxy_manager[proxy] = proxy_from_url(
+                proxy,
+                proxy_headers=proxy_headers,
+                num_pools=self._pool_connections,
+                maxsize=self._pool_maxsize,
+                block=self._pool_block,
+                **proxy_kwargs)
+
+        return manager
+
+    def cert_verify(self, conn, url, verify, cert):
+        """Verify a SSL certificate. This method should not be called from user
+        code, and is only exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param conn: The urllib3 connection object associated with the cert.
+        :param url: The requested URL.
+        :param verify: Whether we should actually verify the certificate.
+        :param cert: The SSL certificate to verify.
+        """
+        if url.lower().startswith('https') and verify:
+
+            cert_loc = None
+
+            # Allow self-specified cert location.
+            if verify is not True:
+                cert_loc = verify
+
+            if not cert_loc:
+                cert_loc = DEFAULT_CA_BUNDLE_PATH
+
+            if not cert_loc:
+                raise Exception("Could not find a suitable SSL CA certificate bundle.")
+
+            conn.cert_reqs = 'CERT_REQUIRED'
+
+            if not os.path.isdir(cert_loc):
+                conn.ca_certs = cert_loc
+            else:
+                conn.ca_cert_dir = cert_loc
+        else:
+            conn.cert_reqs = 'CERT_NONE'
+            conn.ca_certs = None
+            conn.ca_cert_dir = None
+
+        if cert:
+            if not isinstance(cert, basestring):
+                conn.cert_file = cert[0]
+                conn.key_file = cert[1]
+            else:
+                conn.cert_file = cert
+
+    def build_response(self, req, resp):
+        """Builds a :class:`Response <requests.Response>` object from a urllib3
+        response. This should not be called from user code, and is only exposed
+        for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`
+
+        :param req: The :class:`PreparedRequest <PreparedRequest>` used to generate the response.
+        :param resp: The urllib3 response object.
+        :rtype: requests.Response
+        """
+        response = Response()
+
+        # Fallback to None if there's no status_code, for whatever reason.
+        response.status_code = getattr(resp, 'status', None)
+
+        # Make headers case-insensitive.
+        response.headers = CaseInsensitiveDict(getattr(resp, 'headers', {}))
+
+        # Set encoding.
+        response.encoding = get_encoding_from_headers(response.headers)
+        response.raw = resp
+        response.reason = response.raw.reason
+
+        if isinstance(req.url, bytes):
+            response.url = req.url.decode('utf-8')
+        else:
+            response.url = req.url
+
+        # Add new cookies from the server.
+        extract_cookies_to_jar(response.cookies, req, resp)
+
+        # Give the Response some context.
+        response.request = req
+        response.connection = self
+
+        return response
+
+    def get_connection(self, url, proxies=None):
+        """Returns a urllib3 connection for the given URL. This should not be
+        called from user code, and is only exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param url: The URL to connect to.
+        :param proxies: (optional) A Requests-style dictionary of proxies used on this request.
+        :rtype: requests.packages.urllib3.ConnectionPool
+        """
+        proxy = select_proxy(url, proxies)
+
+        if proxy:
+            proxy = prepend_scheme_if_needed(proxy, 'http')
+            proxy_manager = self.proxy_manager_for(proxy)
+            conn = proxy_manager.connection_from_url(url)
+        else:
+            # Only scheme should be lower case
+            parsed = urlparse(url)
+            url = parsed.geturl()
+            conn = self.poolmanager.connection_from_url(url)
+
+        return conn
+
+    def close(self):
+        """Disposes of any internal state.
+
+        Currently, this closes the PoolManager and any active ProxyManager,
+        which closes any pooled connections.
+        """
+        self.poolmanager.clear()
+        for proxy in self.proxy_manager.values():
+            proxy.clear()
+
+    def request_url(self, request, proxies):
+        """Obtain the url to use when making the final request.
+
+        If the message is being sent through a HTTP proxy, the full URL has to
+        be used. Otherwise, we should only use the path portion of the URL.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs.
+        :rtype: str
+        """
+        proxy = select_proxy(request.url, proxies)
+        scheme = urlparse(request.url).scheme
+
+        is_proxied_http_request = (proxy and scheme != 'https')
+        using_socks_proxy = False
+        if proxy:
+            proxy_scheme = urlparse(proxy).scheme.lower()
+            using_socks_proxy = proxy_scheme.startswith('socks')
+
+        url = request.path_url
+        if is_proxied_http_request and not using_socks_proxy:
+            url = urldefragauth(request.url)
+
+        return url
+
+    def add_headers(self, request, **kwargs):
+        """Add any headers needed by the connection. As of v2.0 this does
+        nothing by default, but is left for overriding by users that subclass
+        the :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` to add headers to.
+        :param kwargs: The keyword arguments from the call to send().
+        """
+        pass
+
+    def proxy_headers(self, proxy):
+        """Returns a dictionary of the headers to add to any request sent
+        through a proxy. This works with urllib3 magic to ensure that they are
+        correctly sent to the proxy, rather than in a tunnelled request if
+        CONNECT is being used.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param proxies: The url of the proxy being used for this request.
+        :rtype: dict
+        """
+        headers = {}
+        username, password = get_auth_from_url(proxy)
+
+        if username and password:
+            headers['Proxy-Authorization'] = _basic_auth_str(username,
+                                                             password)
+
+        return headers
+
+    def send(self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None):
+        """Sends PreparedRequest object. Returns Response object.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param stream: (optional) Whether to stream the request content.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param verify: (optional) Whether to verify SSL certificates.
+        :param cert: (optional) Any user-provided SSL certificate to be trusted.
+        :param proxies: (optional) The proxies dictionary to apply to the request.
+        :rtype: requests.Response
+        """
+
+        conn = self.get_connection(request.url, proxies)
+
+        self.cert_verify(conn, request.url, verify, cert)
+        url = self.request_url(request, proxies)
+        self.add_headers(request)
+
+        chunked = not (request.body is None or 'Content-Length' in request.headers)
+
+        if isinstance(timeout, tuple):
+            try:
+                connect, read = timeout
+                timeout = TimeoutSauce(connect=connect, read=read)
+            except ValueError as e:
+                # this may raise a string formatting error.
+                err = ("Invalid timeout {0}. Pass a (connect, read) "
+                       "timeout tuple, or a single float to set "
+                       "both timeouts to the same value".format(timeout))
+                raise ValueError(err)
+        else:
+            timeout = TimeoutSauce(connect=timeout, read=timeout)
+
+        try:
+            if not chunked:
+                resp = conn.urlopen(
+                    method=request.method,
+                    url=url,
+                    body=request.body,
+                    headers=request.headers,
+                    redirect=False,
+                    assert_same_host=False,
+                    preload_content=False,
+                    decode_content=False,
+                    retries=self.max_retries,
+                    timeout=timeout
+                )
+
+            # Send the request.
+            else:
+                if hasattr(conn, 'proxy_pool'):
+                    conn = conn.proxy_pool
+
+                low_conn = conn._get_conn(timeout=DEFAULT_POOL_TIMEOUT)
+
+                try:
+                    low_conn.putrequest(request.method,
+                                        url,
+                                        skip_accept_encoding=True)
+
+                    for header, value in request.headers.items():
+                        low_conn.putheader(header, value)
+
+                    low_conn.endheaders()
+
+                    for i in request.body:
+                        low_conn.send(hex(len(i))[2:].encode('utf-8'))
+                        low_conn.send(b'\r\n')
+                        low_conn.send(i)
+                        low_conn.send(b'\r\n')
+                    low_conn.send(b'0\r\n\r\n')
+
+                    # Receive the response from the server
+                    try:
+                        # For Python 2.7+ versions, use buffering of HTTP
+                        # responses
+                        r = low_conn.getresponse(buffering=True)
+                    except TypeError:
+                        # For compatibility with Python 2.6 versions and back
+                        r = low_conn.getresponse()
+
+                    resp = HTTPResponse.from_httplib(
+                        r,
+                        pool=conn,
+                        connection=low_conn,
+                        preload_content=False,
+                        decode_content=False
+                    )
+                except:
+                    # If we hit any problems here, clean up the connection.
+                    # Then, reraise so that we can handle the actual exception.
+                    low_conn.close()
+                    raise
+
+        except (ProtocolError, socket.error) as err:
+            raise ConnectionError(err, request=request)
+
+        except MaxRetryError as e:
+            if isinstance(e.reason, ConnectTimeoutError):
+                # TODO: Remove this in 3.0.0: see #2811
+                if not isinstance(e.reason, NewConnectionError):
+                    raise ConnectTimeout(e, request=request)
+
+            if isinstance(e.reason, ResponseError):
+                raise RetryError(e, request=request)
+
+            if isinstance(e.reason, _ProxyError):
+                raise ProxyError(e, request=request)
+
+            raise ConnectionError(e, request=request)
+
+        except ClosedPoolError as e:
+            raise ConnectionError(e, request=request)
+
+        except _ProxyError as e:
+            raise ProxyError(e)
+
+        except (_SSLError, _HTTPError) as e:
+            if isinstance(e, _SSLError):
+                raise SSLError(e, request=request)
+            elif isinstance(e, ReadTimeoutError):
+                raise ReadTimeout(e, request=request)
+            else:
+                raise
+
+        return self.build_response(request, resp)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/api.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/api.py
new file mode 100644
index 0000000..580b3f3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/api.py
@@ -0,0 +1,148 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.api
+~~~~~~~~~~~~
+
+This module implements the Requests API.
+
+:copyright: (c) 2012 by Kenneth Reitz.
+:license: Apache2, see LICENSE for more details.
+"""
+
+from . import sessions
+
+
+def request(method, url, **kwargs):
+    """Constructs and sends a :class:`Request <Request>`.
+
+    :param method: method for the new :class:`Request` object.
+    :param url: URL for the new :class:`Request` object.
+    :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param json: (optional) json data to send in the body of the :class:`Request`.
+    :param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`.
+    :param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`.
+    :param files: (optional) Dictionary of ``'name': file-like-objects`` (or ``{'name': file-tuple}``) for multipart encoding upload.
+        ``file-tuple`` can be a 2-tuple ``('filename', fileobj)``, 3-tuple ``('filename', fileobj, 'content_type')``
+        or a 4-tuple ``('filename', fileobj, 'content_type', custom_headers)``, where ``'content-type'`` is a string
+        defining the content type of the given file and ``custom_headers`` a dict-like object containing additional headers
+        to add for the file.
+    :param auth: (optional) Auth tuple to enable Basic/Digest/Custom HTTP Auth.
+    :param timeout: (optional) How long to wait for the server to send data
+        before giving up, as a float, or a :ref:`(connect timeout, read
+        timeout) <timeouts>` tuple.
+    :type timeout: float or tuple
+    :param allow_redirects: (optional) Boolean. Set to True if POST/PUT/DELETE redirect following is allowed.
+    :type allow_redirects: bool
+    :param proxies: (optional) Dictionary mapping protocol to the URL of the proxy.
+    :param verify: (optional) whether the SSL cert will be verified. A CA_BUNDLE path can also be provided. Defaults to ``True``.
+    :param stream: (optional) if ``False``, the response content will be immediately downloaded.
+    :param cert: (optional) if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.request('GET', 'http://httpbin.org/get')
+      <Response [200]>
+    """
+
+    # By using the 'with' statement we are sure the session is closed, thus we
+    # avoid leaving sockets open which can trigger a ResourceWarning in some
+    # cases, and look like a memory leak in others.
+    with sessions.Session() as session:
+        return session.request(method=method, url=url, **kwargs)
+
+
+def get(url, params=None, **kwargs):
+    """Sends a GET request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', True)
+    return request('get', url, params=params, **kwargs)
+
+
+def options(url, **kwargs):
+    """Sends a OPTIONS request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', True)
+    return request('options', url, **kwargs)
+
+
+def head(url, **kwargs):
+    """Sends a HEAD request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', False)
+    return request('head', url, **kwargs)
+
+
+def post(url, data=None, json=None, **kwargs):
+    """Sends a POST request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param json: (optional) json data to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('post', url, data=data, json=json, **kwargs)
+
+
+def put(url, data=None, **kwargs):
+    """Sends a PUT request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('put', url, data=data, **kwargs)
+
+
+def patch(url, data=None, **kwargs):
+    """Sends a PATCH request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('patch', url,  data=data, **kwargs)
+
+
+def delete(url, **kwargs):
+    """Sends a DELETE request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('delete', url, **kwargs)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/auth.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/auth.py
new file mode 100644
index 0000000..49bcb24
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/auth.py
@@ -0,0 +1,252 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.auth
+~~~~~~~~~~~~~
+
+This module contains the authentication handlers for Requests.
+"""
+
+import os
+import re
+import time
+import hashlib
+import threading
+
+from base64 import b64encode
+
+from .compat import urlparse, str
+from .cookies import extract_cookies_to_jar
+from .utils import parse_dict_header, to_native_string
+from .status_codes import codes
+
+CONTENT_TYPE_FORM_URLENCODED = 'application/x-www-form-urlencoded'
+CONTENT_TYPE_MULTI_PART = 'multipart/form-data'
+
+
+def _basic_auth_str(username, password):
+    """Returns a Basic Auth string."""
+
+    authstr = 'Basic ' + to_native_string(
+        b64encode(('%s:%s' % (username, password)).encode('latin1')).strip()
+    )
+
+    return authstr
+
+
+class AuthBase(object):
+    """Base class that all auth implementations derive from"""
+
+    def __call__(self, r):
+        raise NotImplementedError('Auth hooks must be callable.')
+
+
+class HTTPBasicAuth(AuthBase):
+    """Attaches HTTP Basic Authentication to the given Request object."""
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+
+    def __eq__(self, other):
+        return all([
+            self.username == getattr(other, 'username', None),
+            self.password == getattr(other, 'password', None)
+        ])
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __call__(self, r):
+        r.headers['Authorization'] = _basic_auth_str(self.username, self.password)
+        return r
+
+
+class HTTPProxyAuth(HTTPBasicAuth):
+    """Attaches HTTP Proxy Authentication to a given Request object."""
+
+    def __call__(self, r):
+        r.headers['Proxy-Authorization'] = _basic_auth_str(self.username, self.password)
+        return r
+
+
+class HTTPDigestAuth(AuthBase):
+    """Attaches HTTP Digest Authentication to the given Request object."""
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+        # Keep state in per-thread local storage
+        self._thread_local = threading.local()
+
+    def init_per_thread_state(self):
+        # Ensure state is initialized just once per-thread
+        if not hasattr(self._thread_local, 'init'):
+            self._thread_local.init = True
+            self._thread_local.last_nonce = ''
+            self._thread_local.nonce_count = 0
+            self._thread_local.chal = {}
+            self._thread_local.pos = None
+            self._thread_local.num_401_calls = None
+
+    def build_digest_header(self, method, url):
+        """
+        :rtype: str
+        """
+
+        realm = self._thread_local.chal['realm']
+        nonce = self._thread_local.chal['nonce']
+        qop = self._thread_local.chal.get('qop')
+        algorithm = self._thread_local.chal.get('algorithm')
+        opaque = self._thread_local.chal.get('opaque')
+        hash_utf8 = None
+
+        if algorithm is None:
+            _algorithm = 'MD5'
+        else:
+            _algorithm = algorithm.upper()
+        # lambdas assume digest modules are imported at the top level
+        if _algorithm == 'MD5' or _algorithm == 'MD5-SESS':
+            def md5_utf8(x):
+                if isinstance(x, str):
+                    x = x.encode('utf-8')
+                return hashlib.md5(x).hexdigest()
+            hash_utf8 = md5_utf8
+        elif _algorithm == 'SHA':
+            def sha_utf8(x):
+                if isinstance(x, str):
+                    x = x.encode('utf-8')
+                return hashlib.sha1(x).hexdigest()
+            hash_utf8 = sha_utf8
+
+        KD = lambda s, d: hash_utf8("%s:%s" % (s, d))
+
+        if hash_utf8 is None:
+            return None
+
+        # XXX not implemented yet
+        entdig = None
+        p_parsed = urlparse(url)
+        #: path is request-uri defined in RFC 2616 which should not be empty
+        path = p_parsed.path or "/"
+        if p_parsed.query:
+            path += '?' + p_parsed.query
+
+        A1 = '%s:%s:%s' % (self.username, realm, self.password)
+        A2 = '%s:%s' % (method, path)
+
+        HA1 = hash_utf8(A1)
+        HA2 = hash_utf8(A2)
+
+        if nonce == self._thread_local.last_nonce:
+            self._thread_local.nonce_count += 1
+        else:
+            self._thread_local.nonce_count = 1
+        ncvalue = '%08x' % self._thread_local.nonce_count
+        s = str(self._thread_local.nonce_count).encode('utf-8')
+        s += nonce.encode('utf-8')
+        s += time.ctime().encode('utf-8')
+        s += os.urandom(8)
+
+        cnonce = (hashlib.sha1(s).hexdigest()[:16])
+        if _algorithm == 'MD5-SESS':
+            HA1 = hash_utf8('%s:%s:%s' % (HA1, nonce, cnonce))
+
+        if not qop:
+            respdig = KD(HA1, "%s:%s" % (nonce, HA2))
+        elif qop == 'auth' or 'auth' in qop.split(','):
+            noncebit = "%s:%s:%s:%s:%s" % (
+                nonce, ncvalue, cnonce, 'auth', HA2
+                )
+            respdig = KD(HA1, noncebit)
+        else:
+            # XXX handle auth-int.
+            return None
+
+        self._thread_local.last_nonce = nonce
+
+        # XXX should the partial digests be encoded too?
+        base = 'username="%s", realm="%s", nonce="%s", uri="%s", ' \
+               'response="%s"' % (self.username, realm, nonce, path, respdig)
+        if opaque:
+            base += ', opaque="%s"' % opaque
+        if algorithm:
+            base += ', algorithm="%s"' % algorithm
+        if entdig:
+            base += ', digest="%s"' % entdig
+        if qop:
+            base += ', qop="auth", nc=%s, cnonce="%s"' % (ncvalue, cnonce)
+
+        return 'Digest %s' % (base)
+
+    def handle_redirect(self, r, **kwargs):
+        """Reset num_401_calls counter on redirects."""
+        if r.is_redirect:
+            self._thread_local.num_401_calls = 1
+
+    def handle_401(self, r, **kwargs):
+        """
+        Takes the given response and tries digest-auth, if needed.
+
+        :rtype: requests.Response
+        """
+
+        if self._thread_local.pos is not None:
+            # Rewind the file position indicator of the body to where
+            # it was to resend the request.
+            r.request.body.seek(self._thread_local.pos)
+        s_auth = r.headers.get('www-authenticate', '')
+
+        if 'digest' in s_auth.lower() and self._thread_local.num_401_calls < 2:
+
+            self._thread_local.num_401_calls += 1
+            pat = re.compile(r'digest ', flags=re.IGNORECASE)
+            self._thread_local.chal = parse_dict_header(pat.sub('', s_auth, count=1))
+
+            # Consume content and release the original connection
+            # to allow our new request to reuse the same one.
+            r.content
+            r.close()
+            prep = r.request.copy()
+            extract_cookies_to_jar(prep._cookies, r.request, r.raw)
+            prep.prepare_cookies(prep._cookies)
+
+            prep.headers['Authorization'] = self.build_digest_header(
+                prep.method, prep.url)
+            _r = r.connection.send(prep, **kwargs)
+            _r.history.append(r)
+            _r.request = prep
+
+            return _r
+
+        self._thread_local.num_401_calls = 1
+        return r
+
+    def __call__(self, r):
+        # Initialize per-thread state, if needed
+        self.init_per_thread_state()
+        # If we have a saved nonce, skip the 401
+        if self._thread_local.last_nonce:
+            r.headers['Authorization'] = self.build_digest_header(r.method, r.url)
+        try:
+            self._thread_local.pos = r.body.tell()
+        except AttributeError:
+            # In the case of HTTPDigestAuth being reused and the body of
+            # the previous request was a file-like object, pos has the
+            # file position of the previous body. Ensure it's set to
+            # None.
+            self._thread_local.pos = None
+        r.register_hook('response', self.handle_401)
+        r.register_hook('response', self.handle_redirect)
+        self._thread_local.num_401_calls = 1
+
+        return r
+
+    def __eq__(self, other):
+        return all([
+            self.username == getattr(other, 'username', None),
+            self.password == getattr(other, 'password', None)
+        ])
+
+    def __ne__(self, other):
+        return not self == other
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem b/venv/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem
new file mode 100644
index 0000000..6a66daa
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem
@@ -0,0 +1,5616 @@
+
+# Issuer: O=Equifax OU=Equifax Secure Certificate Authority
+# Subject: O=Equifax OU=Equifax Secure Certificate Authority
+# Label: "Equifax Secure CA"
+# Serial: 903804111
+# MD5 Fingerprint: 67:cb:9d:c0:13:24:8a:82:9b:b2:17:1e:d1:1b:ec:d4
+# SHA1 Fingerprint: d2:32:09:ad:23:d3:14:23:21:74:e4:0d:7f:9d:62:13:97:86:63:3a
+# SHA256 Fingerprint: 08:29:7a:40:47:db:a2:36:80:c7:31:db:6e:31:76:53:ca:78:48:e1:be:bd:3a:0b:01:79:a7:07:f9:2c:f1:78
+-----BEGIN CERTIFICATE-----
+MIIDIDCCAomgAwIBAgIENd70zzANBgkqhkiG9w0BAQUFADBOMQswCQYDVQQGEwJV
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Subject: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Label: "GlobalSign Root CA"
+# Serial: 4835703278459707669005204
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+-----BEGIN CERTIFICATE-----
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+# Label: "GlobalSign Root CA - R2"
+# Serial: 4835703278459682885658125
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+
+# Issuer: CN=VeriSign Class 4 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 4 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Label: "Verisign Class 4 Public Primary Certification Authority - G3"
+# Serial: 314531972711909413743075096039378935511
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Subject: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Label: "Entrust.net Premium 2048 Secure Server CA"
+# Serial: 946069240
+# MD5 Fingerprint: ee:29:31:bc:32:7e:9a:e6:e8:b5:f7:51:b4:34:71:90
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Subject: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Label: "Baltimore CyberTrust Root"
+# Serial: 33554617
+# MD5 Fingerprint: ac:b6:94:a5:9c:17:e0:d7:91:52:9b:b1:97:06:a6:e4
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=AddTrust Class 1 CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Class 1 CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Low-Value Services Root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AddTrust External CA Root O=AddTrust AB OU=AddTrust External TTP Network
+# Subject: CN=AddTrust External CA Root O=AddTrust AB OU=AddTrust External TTP Network
+# Label: "AddTrust External Root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=AddTrust Public CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Public CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Public Services Root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AddTrust Qualified CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Qualified CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Qualified Certificates Root"
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+# Issuer: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Subject: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Label: "Entrust Root Certification Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=RSA Security Inc OU=RSA Security 2048 V3
+# Subject: O=RSA Security Inc OU=RSA Security 2048 V3
+# Label: "RSA Security 2048 v3"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Global CA O=GeoTrust Inc.
+# Subject: CN=GeoTrust Global CA O=GeoTrust Inc.
+# Label: "GeoTrust Global CA"
+# Serial: 144470
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Global CA 2 O=GeoTrust Inc.
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+# Label: "GeoTrust Global CA 2"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=GeoTrust Universal CA 2 O=GeoTrust Inc.
+# Label: "GeoTrust Universal CA 2"
+# Serial: 1
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+# Issuer: CN=Visa eCommerce Root O=VISA OU=Visa International Service Association
+# Subject: CN=Visa eCommerce Root O=VISA OU=Visa International Service Association
+# Label: "Visa eCommerce Root"
+# Serial: 25952180776285836048024890241505565794
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum CA O=Unizeto Sp. z o.o.
+# Subject: CN=Certum CA O=Unizeto Sp. z o.o.
+# Label: "Certum Root CA"
+# Serial: 65568
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=AAA Certificate Services O=Comodo CA Limited
+# Subject: CN=AAA Certificate Services O=Comodo CA Limited
+# Label: "Comodo AAA Services root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Secure Certificate Services O=Comodo CA Limited
+# Subject: CN=Secure Certificate Services O=Comodo CA Limited
+# Label: "Comodo Secure Services root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Trusted Certificate Services O=Comodo CA Limited
+# Subject: CN=Trusted Certificate Services O=Comodo CA Limited
+# Label: "Comodo Trusted Services root"
+# Serial: 1
+# MD5 Fingerprint: 91:1b:3f:6e:cd:9e:ab:ee:07:fe:1f:71:d2:b3:61:27
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root Certification Authority O=QuoVadis Limited OU=Root Certification Authority
+# Subject: CN=QuoVadis Root Certification Authority O=QuoVadis Limited OU=Root Certification Authority
+# Label: "QuoVadis Root CA"
+# Serial: 985026699
+# MD5 Fingerprint: 27:de:36:fe:72:b7:00:03:00:9d:f4:f0:1e:6c:04:24
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2"
+# Serial: 1289
+# MD5 Fingerprint: 5e:39:7b:dd:f8:ba:ec:82:e9:ac:62:ba:0c:54:00:2b
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3"
+# Serial: 1478
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=SECOM Trust.net OU=Security Communication RootCA1
+# Subject: O=SECOM Trust.net OU=Security Communication RootCA1
+# Label: "Security Communication Root CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Sonera Class2 CA O=Sonera
+# Subject: CN=Sonera Class2 CA O=Sonera
+# Label: "Sonera Class 2 Root CA"
+# Serial: 29
+# MD5 Fingerprint: a3:ec:75:0f:2e:88:df:fa:48:01:4e:0b:5c:48:6f:fb
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Staat der Nederlanden Root CA O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA"
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+# Issuer: CN=UTN - DATACorp SGC O=The USERTRUST Network OU=http://www.usertrust.com
+# Subject: CN=UTN - DATACorp SGC O=The USERTRUST Network OU=http://www.usertrust.com
+# Label: "UTN DATACorp SGC Root CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=UTN-USERFirst-Hardware O=The USERTRUST Network OU=http://www.usertrust.com
+# Subject: CN=UTN-USERFirst-Hardware O=The USERTRUST Network OU=http://www.usertrust.com
+# Label: "UTN USERFirst Hardware Root CA"
+# Serial: 91374294542884704022267039221184531197
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Chambers of Commerce Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Subject: CN=Chambers of Commerce Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Label: "Camerfirma Chambers of Commerce Root"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Global Chambersign Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Subject: CN=Global Chambersign Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Label: "Camerfirma Global Chambersign Root"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Kozjegyzoi (Class A) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Kozjegyzoi (Class A) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Notary (Class A) Root"
+# Serial: 259
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Subject: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Label: "XRamp Global CA Root"
+# Serial: 107108908803651509692980124233745014957
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Subject: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Label: "Go Daddy Class 2 CA"
+# Serial: 0
+# MD5 Fingerprint: 91:de:06:25:ab:da:fd:32:17:0c:bb:25:17:2a:84:67
+# SHA1 Fingerprint: 27:96:ba:e6:3f:18:01:e2:77:26:1b:a0:d7:77:70:02:8f:20:ee:e4
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Subject: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Label: "Starfield Class 2 CA"
+# Serial: 0
+# MD5 Fingerprint: 32:4a:4b:bb:c8:63:69:9b:be:74:9a:c6:dd:1d:46:24
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Subject: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Label: "StartCom Certification Authority"
+# Serial: 1
+# MD5 Fingerprint: 22:4d:8f:8a:fc:f7:35:c2:bb:57:34:90:7b:8b:22:16
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=Government Root Certification Authority
+# Subject: O=Government Root Certification Authority
+# Label: "Taiwan GRCA"
+# Serial: 42023070807708724159991140556527066870
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Swisscom Root CA 1 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root CA 1 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root CA 1"
+# Serial: 122348795730808398873664200247279986742
+# MD5 Fingerprint: f8:38:7c:77:88:df:2c:16:68:2e:c2:e2:52:4b:b8:f9
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root CA"
+# Serial: 17154717934120587862167794914071425081
+# MD5 Fingerprint: 87:ce:0b:7b:2a:0e:49:00:e1:58:71:9b:37:a8:93:72
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root CA"
+# Serial: 10944719598952040374951832963794454346
+# MD5 Fingerprint: 79:e4:a9:84:0d:7d:3a:96:d7:c0:4f:e2:43:4c:89:2e
+# SHA1 Fingerprint: a8:98:5d:3a:65:e5:e5:c4:b2:d7:d6:6d:40:c6:dd:2f:b1:9c:54:36
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert High Assurance EV Root CA"
+# Serial: 3553400076410547919724730734378100087
+# MD5 Fingerprint: d4:74:de:57:5c:39:b2:d3:9c:85:83:c5:c0:65:49:8a
+# SHA1 Fingerprint: 5f:b7:ee:06:33:e2:59:db:ad:0c:4c:9a:e6:d3:8f:1a:61:c7:dc:25
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Class 2 Primary CA O=Certplus
+# Subject: CN=Class 2 Primary CA O=Certplus
+# Label: "Certplus Class 2 Primary CA"
+# Serial: 177770208045934040241468760488327595043
+# MD5 Fingerprint: 88:2c:8c:52:b8:a2:3c:f3:f7:bb:03:ea:ae:ac:42:0b
+# SHA1 Fingerprint: 74:20:74:41:72:9c:dd:92:ec:79:31:d8:23:10:8d:c2:81:92:e2:bb
+# SHA256 Fingerprint: 0f:99:3c:8a:ef:97:ba:af:56:87:14:0e:d5:9a:d1:82:1b:b4:af:ac:f0:aa:9a:58:b5:d5:7a:33:8a:3a:fb:cb
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Subject: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Label: "DST Root CA X3"
+# Serial: 91299735575339953335919266965803778155
+# MD5 Fingerprint: 41:03:52:dc:0f:f7:50:1b:16:f0:02:8e:ba:6f:45:c5
+# SHA1 Fingerprint: da:c9:02:4f:54:d8:f6:df:94:93:5f:b1:73:26:38:ca:6a:d7:7c:13
+# SHA256 Fingerprint: 06:87:26:03:31:a7:24:03:d9:09:f1:05:e6:9b:cf:0d:32:e1:bd:24:93:ff:c6:d9:20:6d:11:bc:d6:77:07:39
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DST ACES CA X6 O=Digital Signature Trust OU=DST ACES
+# Subject: CN=DST ACES CA X6 O=Digital Signature Trust OU=DST ACES
+# Label: "DST ACES CA X6"
+# Serial: 17771143917277623872238992636097467865
+# MD5 Fingerprint: 21:d8:4c:82:2b:99:09:33:a2:eb:14:24:8d:8e:5f:e8
+# SHA1 Fingerprint: 40:54:da:6f:1c:3f:40:74:ac:ed:0f:ec:cd:db:79:d1:53:fb:90:1d
+# SHA256 Fingerprint: 76:7c:95:5a:76:41:2c:89:af:68:8e:90:a1:c7:0f:55:6c:fd:6b:60:25:db:ea:10:41:6d:7e:b6:83:1f:8c:40
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Kasım 2005
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Kasım 2005
+# Label: "TURKTRUST Certificate Services Provider Root 2"
+# Serial: 1
+# MD5 Fingerprint: 37:a5:6e:d4:b1:25:84:97:b7:fd:56:15:7a:f9:a2:00
+# SHA1 Fingerprint: b4:35:d4:e1:11:9d:1c:66:90:a7:49:eb:b3:94:bd:63:7b:a7:82:b7
+# SHA256 Fingerprint: c4:70:cf:54:7e:23:02:b9:77:fb:29:dd:71:a8:9a:7b:6c:1f:60:77:7b:03:29:f5:60:17:f3:28:bf:4f:6b:e6
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Label: "SwissSign Gold CA - G2"
+# Serial: 13492815561806991280
+# MD5 Fingerprint: 24:77:d9:a8:91:d1:3b:fa:88:2d:c2:ff:f8:cd:33:93
+# SHA1 Fingerprint: d8:c5:38:8a:b7:30:1b:1b:6e:d4:7a:e6:45:25:3a:6f:9f:1a:27:61
+# SHA256 Fingerprint: 62:dd:0b:e9:b9:f5:0a:16:3e:a0:f8:e7:5c:05:3b:1e:ca:57:ea:55:c8:68:8f:64:7c:68:81:f2:c8:35:7b:95
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Label: "SwissSign Silver CA - G2"
+# Serial: 5700383053117599563
+# MD5 Fingerprint: e0:06:a1:c9:7d:cf:c9:fc:0d:c0:56:75:96:d8:62:13
+# SHA1 Fingerprint: 9b:aa:e5:9f:56:ee:21:cb:43:5a:be:25:93:df:a7:f0:40:d1:1d:cb
+# SHA256 Fingerprint: be:6c:4d:a2:bb:b9:ba:59:b6:f3:93:97:68:37:42:46:c3:c0:05:99:3f:a9:8f:02:0d:1d:ed:be:d4:8a:81:d5
+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Primary Certification Authority O=GeoTrust Inc.
+# Subject: CN=GeoTrust Primary Certification Authority O=GeoTrust Inc.
+# Label: "GeoTrust Primary Certification Authority"
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+# Subject: CN=thawte Primary Root CA O=thawte, Inc. OU=Certification Services Division/(c) 2006 thawte, Inc. - For authorized use only
+# Label: "thawte Primary Root CA"
+# Serial: 69529181992039203566298953787712940909
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Class 3 Public Primary Certification Authority - G5"
+# Serial: 33037644167568058970164719475676101450
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=SecureTrust CA O=SecureTrust Corporation
+# Subject: CN=SecureTrust CA O=SecureTrust Corporation
+# Label: "SecureTrust CA"
+# Serial: 17199774589125277788362757014266862032
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Secure Global CA O=SecureTrust Corporation
+# Subject: CN=Secure Global CA O=SecureTrust Corporation
+# Label: "Secure Global CA"
+# Serial: 9751836167731051554232119481456978597
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=COMODO Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO Certification Authority O=COMODO CA Limited
+# Label: "COMODO Certification Authority"
+# Serial: 104350513648249232941998508985834464573
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Subject: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Label: "Network Solutions Certificate Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=WellsSecure Public Root Certificate Authority O=Wells Fargo WellsSecure OU=Wells Fargo Bank NA
+# Subject: CN=WellsSecure Public Root Certificate Authority O=Wells Fargo WellsSecure OU=Wells Fargo Bank NA
+# Label: "WellsSecure Public Root Certificate Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Label: "COMODO ECC Certification Authority"
+# Serial: 41578283867086692638256921589707938090
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=IGC/A O=PM/SGDN OU=DCSSI
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+# Label: "IGC/A"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=SECOM Trust Systems CO.,LTD. OU=Security Communication EV RootCA1
+# Subject: O=SECOM Trust Systems CO.,LTD. OU=Security Communication EV RootCA1
+# Label: "Security Communication EV RootCA1"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=OISTE WISeKey Global Root GA CA O=WISeKey OU=Copyright (c) 2005/OISTE Foundation Endorsed
+# Subject: CN=OISTE WISeKey Global Root GA CA O=WISeKey OU=Copyright (c) 2005/OISTE Foundation Endorsed
+# Label: "OISTE WISeKey Global Root GA CA"
+# Serial: 86718877871133159090080555911823548314
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Microsec e-Szigno Root CA O=Microsec Ltd. OU=e-Szigno CA
+# Subject: CN=Microsec e-Szigno Root CA O=Microsec Ltd. OU=e-Szigno CA
+# Label: "Microsec e-Szigno Root CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certigna O=Dhimyotis
+# Subject: CN=Certigna O=Dhimyotis
+# Label: "Certigna"
+# Serial: 18364802974209362175
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Deutsche Telekom Root CA 2 O=Deutsche Telekom AG OU=T-TeleSec Trust Center
+# Subject: CN=Deutsche Telekom Root CA 2 O=Deutsche Telekom AG OU=T-TeleSec Trust Center
+# Label: "Deutsche Telekom Root CA 2"
+# Serial: 38
+# MD5 Fingerprint: 74:01:4a:91:b1:08:c4:58:ce:47:cd:f0:dd:11:53:08
+# SHA1 Fingerprint: 85:a4:08:c0:9c:19:3e:5d:51:58:7d:cd:d6:13:30:fd:8c:de:37:bf
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Subject: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Label: "Cybertrust Global Root"
+# Serial: 4835703278459682877484360
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Subject: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Label: "ePKI Root Certification Authority"
+# Serial: 28956088682735189655030529057352760477
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜBİTAK UEKAE Kök Sertifika Hizmet Sağlayıcısı - Sürüm 3 O=Türkiye Bilimsel ve Teknolojik Araştırma Kurumu - TÜBİTAK OU=Ulusal Elektronik ve Kriptoloji Araştırma Enstitüsü - UEKAE/Kamu Sertifikasyon Merkezi
+# Subject: CN=TÜBİTAK UEKAE Kök Sertifika Hizmet Sağlayıcısı - Sürüm 3 O=Türkiye Bilimsel ve Teknolojik Araştırma Kurumu - TÜBİTAK OU=Ulusal Elektronik ve Kriptoloji Araştırma Enstitüsü - UEKAE/Kamu Sertifikasyon Merkezi
+# Label: "T\xc3\x9c\x42\xC4\xB0TAK UEKAE K\xC3\xB6k Sertifika Hizmet Sa\xC4\x9Flay\xc4\xb1\x63\xc4\xb1s\xc4\xb1 - S\xC3\xBCr\xC3\xBCm 3"
+# Serial: 17
+# MD5 Fingerprint: ed:41:f5:8c:50:c5:2b:9c:73:e6:ee:6c:eb:c2:a8:26
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Buypass Class 2 CA 1 O=Buypass AS-983163327
+# Subject: CN=Buypass Class 2 CA 1 O=Buypass AS-983163327
+# Label: "Buypass Class 2 CA 1"
+# Serial: 1
+# MD5 Fingerprint: b8:08:9a:f0:03:cc:1b:0d:c8:6c:0b:76:a1:75:64:23
+# SHA1 Fingerprint: a0:a1:ab:90:c9:fc:84:7b:3b:12:61:e8:97:7d:5f:d3:22:61:d3:cc
+# SHA256 Fingerprint: 0f:4e:9c:dd:26:4b:02:55:50:d1:70:80:63:40:21:4f:e9:44:34:c9:b0:2f:69:7e:c7:10:fc:5f:ea:fb:5e:38
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=EBG Elektronik Sertifika Hizmet Sağlayıcısı O=EBG Bilişim Teknolojileri ve Hizmetleri A.Ş.
+# Subject: CN=EBG Elektronik Sertifika Hizmet Sağlayıcısı O=EBG Bilişim Teknolojileri ve Hizmetleri A.Ş.
+# Label: "EBG Elektronik Sertifika Hizmet Sa\xC4\x9Flay\xc4\xb1\x63\xc4\xb1s\xc4\xb1"
+# Serial: 5525761995591021570
+# MD5 Fingerprint: 2c:20:26:9d:cb:1a:4a:00:85:b5:b7:5a:ae:c2:01:37
+# SHA1 Fingerprint: 8c:96:ba:eb:dd:2b:07:07:48:ee:30:32:66:a0:f3:98:6e:7c:ae:58
+# SHA256 Fingerprint: 35:ae:5b:dd:d8:f7:ae:63:5c:ff:ba:56:82:a8:f0:0b:95:f4:84:62:c7:10:8e:e9:a0:e5:29:2b:07:4a:af:b2
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=certSIGN OU=certSIGN ROOT CA
+# Subject: O=certSIGN OU=certSIGN ROOT CA
+# Label: "certSIGN ROOT CA"
+# Serial: 35210227249154
+# MD5 Fingerprint: 18:98:c0:d6:e9:3a:fc:f9:b0:f5:0c:f7:4b:01:44:17
+# SHA1 Fingerprint: fa:b7:ee:36:97:26:62:fb:2d:b0:2a:f6:bf:03:fd:e8:7c:4b:2f:9b
+# SHA256 Fingerprint: ea:a9:62:c4:fa:4a:6b:af:eb:e4:15:19:6d:35:1c:cd:88:8d:4f:53:f3:fa:8a:e6:d7:c4:66:a9:4e:60:42:bb
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=CNNIC ROOT O=CNNIC
+# Subject: CN=CNNIC ROOT O=CNNIC
+# Label: "CNNIC ROOT"
+# Serial: 1228079105
+# MD5 Fingerprint: 21:bc:82:ab:49:c4:13:3b:4b:b2:2b:5c:6b:90:9c:19
+# SHA1 Fingerprint: 8b:af:4c:9b:1d:f0:2a:92:f7:da:12:8e:b9:1b:ac:f4:98:60:4b:6f
+# SHA256 Fingerprint: e2:83:93:77:3d:a8:45:a6:79:f2:08:0c:c7:fb:44:a3:b7:a1:c3:79:2c:b7:eb:77:29:fd:cb:6a:8d:99:ae:a7
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=Japanese Government OU=ApplicationCA
+# Subject: O=Japanese Government OU=ApplicationCA
+# Label: "ApplicationCA - Japanese Government"
+# Serial: 49
+# MD5 Fingerprint: 7e:23:4e:5b:a7:a5:b4:25:e9:00:07:74:11:62:ae:d6
+# SHA1 Fingerprint: 7f:8a:b0:cf:d0:51:87:6a:66:f3:36:0f:47:c8:8d:8c:d3:35:fc:74
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only
+# Subject: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only
+# Label: "GeoTrust Primary Certification Authority - G3"
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+# Issuer: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only
+# Subject: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only
+# Label: "GeoTrust Primary Certification Authority - G2"
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+# Issuer: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Universal Root Certification Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Class 3 Public Primary Certification Authority - G4"
+# Serial: 63143484348153506665311985501458640051
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=NetLock Arany (Class Gold) Főtanúsítvány O=NetLock Kft. OU=Tanúsítványkiadók (Certification Services)
+# Subject: CN=NetLock Arany (Class Gold) Főtanúsítvány O=NetLock Kft. OU=Tanúsítványkiadók (Certification Services)
+# Label: "NetLock Arany (Class Gold) Főtanúsítvány"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Staat der Nederlanden Root CA - G2 O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA - G2 O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA - G2"
+# Serial: 10000012
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+-----BEGIN CERTIFICATE-----
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+# Label: "CA Disig"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Juur-SK O=AS Sertifitseerimiskeskus
+# Subject: CN=Juur-SK O=AS Sertifitseerimiskeskus
+# Label: "Juur-SK"
+# Serial: 999181308
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Subject: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Label: "Hongkong Post Root CA 1"
+# Serial: 1000
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Subject: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Label: "SecureSign RootCA11"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=ACEDICOM Root O=EDICOM OU=PKI
+# Subject: CN=ACEDICOM Root O=EDICOM OU=PKI
+# Label: "ACEDICOM Root"
+# Serial: 7029493972724711941
+# MD5 Fingerprint: 42:81:a0:e2:1c:e3:55:10:de:55:89:42:65:96:22:e6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Subject: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Label: "Microsec e-Szigno Root CA 2009"
+# Serial: 14014712776195784473
+# MD5 Fingerprint: f8:49:f4:03:bc:44:2d:83:be:48:69:7d:29:64:fc:b1
+# SHA1 Fingerprint: 89:df:74:fe:5c:f4:0f:4a:80:f9:e3:37:7d:54:da:91:e1:01:31:8e
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R3
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R3
+# Label: "GlobalSign Root CA - R3"
+# Serial: 4835703278459759426209954
+# MD5 Fingerprint: c5:df:b8:49:ca:05:13:55:ee:2d:ba:1a:c3:3e:b0:28
+# SHA1 Fingerprint: d6:9b:56:11:48:f0:1c:77:c5:45:78:c1:09:26:df:5b:85:69:76:ad
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Subject: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Label: "Autoridad de Certificacion Firmaprofesional CIF A62634068"
+# Serial: 6047274297262753887
+# MD5 Fingerprint: 73:3a:74:7a:ec:bb:a3:96:a6:c2:e4:e2:c8:9b:c0:c3
+# SHA1 Fingerprint: ae:c5:fb:3f:c8:e1:bf:c4:e5:4f:03:07:5a:9a:e8:00:b7:f7:b6:fa
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Izenpe.com O=IZENPE S.A.
+# Subject: CN=Izenpe.com O=IZENPE S.A.
+# Label: "Izenpe.com"
+# Serial: 917563065490389241595536686991402621
+# MD5 Fingerprint: a6:b0:cd:85:80:da:5c:50:34:a3:39:90:2f:55:67:73
+# SHA1 Fingerprint: 2f:78:3d:25:52:18:a7:4a:65:39:71:b5:2c:a2:9c:45:15:6f:e9:19
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+-----BEGIN CERTIFICATE-----
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+# Label: "Chambers of Commerce Root - 2008"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Global Chambersign Root - 2008 O=AC Camerfirma S.A.
+# Subject: CN=Global Chambersign Root - 2008 O=AC Camerfirma S.A.
+# Label: "Global Chambersign Root - 2008"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=Go Daddy Root Certificate Authority - G2 O=GoDaddy.com, Inc.
+# Label: "Go Daddy Root Certificate Authority - G2"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Label: "Starfield Root Certificate Authority - G2"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Label: "Starfield Services Root Certificate Authority - G2"
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+-----BEGIN CERTIFICATE-----
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+# Label: "AffirmTrust Commercial"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=AffirmTrust Networking O=AffirmTrust
+# Label: "AffirmTrust Networking"
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+# Label: "AffirmTrust Premium"
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+# Issuer: CN=AffirmTrust Premium ECC O=AffirmTrust
+# Subject: CN=AffirmTrust Premium ECC O=AffirmTrust
+# Label: "AffirmTrust Premium ECC"
+# Serial: 8401224907861490260
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum Trusted Network CA O=Unizeto Technologies S.A. OU=Certum Certification Authority
+# Subject: CN=Certum Trusted Network CA O=Unizeto Technologies S.A. OU=Certum Certification Authority
+# Label: "Certum Trusted Network CA"
+# Serial: 279744
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Certinomis - Autorité Racine O=Certinomis OU=0002 433998903
+# Subject: CN=Certinomis - Autorité Racine O=Certinomis OU=0002 433998903
+# Label: "Certinomis - Autorité Racine"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Label: "A-Trust-nQual-03"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA
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+# Label: "TWCA Root Certification Authority"
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+-----BEGIN CERTIFICATE-----
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+-----BEGIN CERTIFICATE-----
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+# Label: "Hellenic Academic and Research Institutions RootCA 2011"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Actalis Authentication Root CA O=Actalis S.p.A./03358520967
+# Subject: CN=Actalis Authentication Root CA O=Actalis S.p.A./03358520967
+# Label: "Actalis Authentication Root CA"
+# Serial: 6271844772424770508
+# MD5 Fingerprint: 69:c1:0d:4f:07:a3:1b:c3:fe:56:3d:04:bc:11:f6:a6
+# SHA1 Fingerprint: f3:73:b3:87:06:5a:28:84:8a:f2:f3:4a:ce:19:2b:dd:c7:8e:9c:ac
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=Trustis Limited OU=Trustis FPS Root CA
+# Subject: O=Trustis Limited OU=Trustis FPS Root CA
+# Label: "Trustis FPS Root CA"
+# Serial: 36053640375399034304724988975563710553
+# MD5 Fingerprint: 30:c9:e7:1e:6b:e6:14:eb:65:b2:16:69:20:31:67:4d
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Subject: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Label: "StartCom Certification Authority"
+# Serial: 45
+# MD5 Fingerprint: c9:3b:0d:84:41:fc:a4:76:79:23:08:57:de:10:19:16
+# SHA1 Fingerprint: a3:f1:33:3f:e2:42:bf:cf:c5:d1:4e:8f:39:42:98:40:68:10:d1:a0
+# SHA256 Fingerprint: e1:78:90:ee:09:a3:fb:f4:f4:8b:9c:41:4a:17:d6:37:b7:a5:06:47:e9:bc:75:23:22:72:7f:cc:17:42:a9:11
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=StartCom Certification Authority G2 O=StartCom Ltd.
+# Subject: CN=StartCom Certification Authority G2 O=StartCom Ltd.
+# Label: "StartCom Certification Authority G2"
+# Serial: 59
+# MD5 Fingerprint: 78:4b:fb:9e:64:82:0a:d3:b8:4c:62:f3:64:f2:90:64
+# SHA1 Fingerprint: 31:f1:fd:68:22:63:20:ee:c6:3b:3f:9d:ea:4a:3e:53:7c:7c:39:17
+# SHA256 Fingerprint: c7:ba:65:67:de:93:a7:98:ae:1f:aa:79:1e:71:2d:37:8f:ae:1f:93:c4:39:7f:ea:44:1b:b7:cb:e6:fd:59:95
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Buypass Class 2 Root CA O=Buypass AS-983163327
+# Subject: CN=Buypass Class 2 Root CA O=Buypass AS-983163327
+# Label: "Buypass Class 2 Root CA"
+# Serial: 2
+# MD5 Fingerprint: 46:a7:d2:fe:45:fb:64:5a:a8:59:90:9b:78:44:9b:29
+# SHA1 Fingerprint: 49:0a:75:74:de:87:0a:47:fe:58:ee:f6:c7:6b:eb:c6:0b:12:40:99
+# SHA256 Fingerprint: 9a:11:40:25:19:7c:5b:b9:5d:94:e6:3d:55:cd:43:79:08:47:b6:46:b2:3c:df:11:ad:a4:a0:0e:ff:15:fb:48
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Subject: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Label: "Buypass Class 3 Root CA"
+# Serial: 2
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 3"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=EE Certification Centre Root CA O=AS Sertifitseerimiskeskus
+# Subject: CN=EE Certification Centre Root CA O=AS Sertifitseerimiskeskus
+# Label: "EE Certification Centre Root CA"
+# Serial: 112324828676200291871926431888494945866
+# MD5 Fingerprint: 43:5e:88:d4:7d:1a:4a:7e:fd:84:2e:52:eb:01:d4:6f
+# SHA1 Fingerprint: c9:a8:b9:e7:55:80:5e:58:e3:53:77:a7:25:eb:af:c3:7b:27:cc:d7
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Aralık 2007
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Aralık 2007
+# Label: "TURKTRUST Certificate Services Provider Root 2007"
+# Serial: 1
+# MD5 Fingerprint: 2b:70:20:56:86:82:a0:18:c8:07:53:12:28:70:21:72
+# SHA1 Fingerprint: f1:7f:6f:b6:31:dc:99:e3:a3:c8:7f:fe:1c:f1:81:10:88:d9:60:33
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 2009"
+# Serial: 623603
+# MD5 Fingerprint: cd:e0:25:69:8d:47:ac:9c:89:35:90:f7:fd:51:3d:2f
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 EV 2009"
+# Serial: 623604
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Autoridad de Certificacion Raiz del Estado Venezolano O=Sistema Nacional de Certificacion Electronica OU=Superintendencia de Servicios de Certificacion Electronica
+# Subject: CN=PSCProcert O=Sistema Nacional de Certificacion Electronica OU=Proveedor de Certificados PROCERT
+# Label: "PSCProcert"
+# Serial: 11
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=China Internet Network Information Center EV Certificates Root O=China Internet Network Information Center
+# Subject: CN=China Internet Network Information Center EV Certificates Root O=China Internet Network Information Center
+# Label: "China Internet Network Information Center EV Certificates Root"
+# Serial: 1218379777
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Swisscom Root CA 2 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root CA 2 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root CA 2"
+# Serial: 40698052477090394928831521023204026294
+# MD5 Fingerprint: 5b:04:69:ec:a5:83:94:63:18:a7:86:d0:e4:f2:6e:19
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Swisscom Root EV CA 2 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root EV CA 2 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root EV CA 2"
+# Serial: 322973295377129385374608406479535262296
+# MD5 Fingerprint: 7b:30:34:9f:dd:0a:4b:6b:35:ca:31:51:28:5d:ae:ec
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=CA Disig Root R1 O=Disig a.s.
+# Subject: CN=CA Disig Root R1 O=Disig a.s.
+# Label: "CA Disig Root R1"
+# Serial: 14052245610670616104
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=CA Disig Root R2 O=Disig a.s.
+# Subject: CN=CA Disig Root R2 O=Disig a.s.
+# Label: "CA Disig Root R2"
+# Serial: 10572350602393338211
+# MD5 Fingerprint: 26:01:fb:d8:27:a7:17:9a:45:54:38:1a:43:01:3b:03
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=ACCVRAIZ1 O=ACCV OU=PKIACCV
+# Subject: CN=ACCVRAIZ1 O=ACCV OU=PKIACCV
+# Label: "ACCVRAIZ1"
+# Serial: 6828503384748696800
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Subject: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Label: "TWCA Global Root CA"
+# Serial: 3262
+# MD5 Fingerprint: f9:03:7e:cf:e6:9e:3c:73:7a:2a:90:07:69:ff:2b:96
+# SHA1 Fingerprint: 9c:bb:48:53:f6:a4:f6:d3:52:a4:e8:32:52:55:60:13:f5:ad:af:65
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Subject: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Label: "TeliaSonera Root CA v1"
+# Serial: 199041966741090107964904287217786801558
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=E-Tugra Certification Authority O=E-Tuğra EBG Bilişim Teknolojileri ve Hizmetleri A.Ş. OU=E-Tugra Sertifikasyon Merkezi
+# Subject: CN=E-Tugra Certification Authority O=E-Tuğra EBG Bilişim Teknolojileri ve Hizmetleri A.Ş. OU=E-Tugra Sertifikasyon Merkezi
+# Label: "E-Tugra Certification Authority"
+# Serial: 7667447206703254355
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 2"
+# Serial: 1
+# MD5 Fingerprint: 2b:9b:9e:e4:7b:6c:1f:00:72:1a:cc:c1:77:79:df:6a
+# SHA1 Fingerprint: 59:0d:2d:7d:88:4f:40:2e:61:7e:a5:62:32:17:65:cf:17:d8:94:e9
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Atos TrustedRoot 2011 O=Atos
+# Subject: CN=Atos TrustedRoot 2011 O=Atos
+# Label: "Atos TrustedRoot 2011"
+# Serial: 6643877497813316402
+# MD5 Fingerprint: ae:b9:c4:32:4b:ac:7f:5d:66:cc:77:94:bb:2a:77:56
+# SHA1 Fingerprint: 2b:b1:f5:3e:55:0c:1d:c5:f1:d4:e6:b7:6a:46:4b:55:06:02:ac:21
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 1 G3"
+# Serial: 687049649626669250736271037606554624078720034195
+# MD5 Fingerprint: a4:bc:5b:3f:fe:37:9a:fa:64:f0:e2:fa:05:3d:0b:ab
+# SHA1 Fingerprint: 1b:8e:ea:57:96:29:1a:c9:39:ea:b8:0a:81:1a:73:73:c0:93:79:67
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2 G3"
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3 G3"
+# Serial: 268090761170461462463995952157327242137089239581
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G2"
+# Serial: 15385348160840213938643033620894905419
+# MD5 Fingerprint: 92:38:b9:f8:63:24:82:65:2c:57:33:e6:fe:81:8f:9d
+# SHA1 Fingerprint: a1:4b:48:d9:43:ee:0a:0e:40:90:4f:3c:e0:a4:c0:91:93:51:5d:3f
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G3"
+# Serial: 15459312981008553731928384953135426796
+# MD5 Fingerprint: 7c:7f:65:31:0c:81:df:8d:ba:3e:99:e2:5c:ad:6e:fb
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G2"
+# Serial: 4293743540046975378534879503202253541
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G3"
+# Serial: 7089244469030293291760083333884364146
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Trusted Root G4"
+# Serial: 7451500558977370777930084869016614236
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Certification Authority of WoSign O=WoSign CA Limited
+# Subject: CN=Certification Authority of WoSign O=WoSign CA Limited
+# Label: "WoSign"
+# Serial: 125491772294754854453622855443212256657
+# MD5 Fingerprint: a1:f2:f9:b5:d2:c8:7a:74:b8:f3:05:f1:d7:e1:84:8d
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=CA 沃通根证书 O=WoSign CA Limited
+# Subject: CN=CA 沃通根证书 O=WoSign CA Limited
+# Label: "WoSign China"
+# Serial: 106921963437422998931660691310149453965
+# MD5 Fingerprint: 78:83:5b:52:16:76:c4:24:3b:83:78:e8:ac:da:9a:93
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Label: "COMODO RSA Certification Authority"
+# Serial: 101909084537582093308941363524873193117
+# MD5 Fingerprint: 1b:31:b0:71:40:36:cc:14:36:91:ad:c4:3e:fd:ec:18
+# SHA1 Fingerprint: af:e5:d2:44:a8:d1:19:42:30:ff:47:9f:e2:f8:97:bb:cd:7a:8c:b4
+# SHA256 Fingerprint: 52:f0:e1:c4:e5:8e:c6:29:29:1b:60:31:7f:07:46:71:b8:5d:7e:a8:0d:5b:07:27:34:63:53:4b:32:b4:02:34
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Label: "USERTrust RSA Certification Authority"
+# Serial: 2645093764781058787591871645665788717
+# MD5 Fingerprint: 1b:fe:69:d1:91:b7:19:33:a3:72:a8:0f:e1:55:e5:b5
+# SHA1 Fingerprint: 2b:8f:1b:57:33:0d:bb:a2:d0:7a:6c:51:f7:0e:e9:0d:da:b9:ad:8e
+# SHA256 Fingerprint: e7:93:c9:b0:2f:d8:aa:13:e2:1c:31:22:8a:cc:b0:81:19:64:3b:74:9c:89:89:64:b1:74:6d:46:c3:d4:cb:d2
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Label: "USERTrust ECC Certification Authority"
+# Serial: 123013823720199481456569720443997572134
+# MD5 Fingerprint: fa:68:bc:d9:b5:7f:ad:fd:c9:1d:06:83:28:cc:24:c1
+# SHA1 Fingerprint: d1:cb:ca:5d:b2:d5:2a:7f:69:3b:67:4d:e5:f0:5a:1d:0c:95:7d:f0
+# SHA256 Fingerprint: 4f:f4:60:d5:4b:9c:86:da:bf:bc:fc:57:12:e0:40:0d:2b:ed:3f:bc:4d:4f:bd:aa:86:e0:6a:dc:d2:a9:ad:7a
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Label: "GlobalSign ECC Root CA - R4"
+# Serial: 14367148294922964480859022125800977897474
+# MD5 Fingerprint: 20:f0:27:68:d1:7e:a0:9d:0e:e6:2a:ca:df:5c:89:8e
+# SHA1 Fingerprint: 69:69:56:2e:40:80:f4:24:a1:e7:19:9f:14:ba:f3:ee:58:ab:6a:bb
+# SHA256 Fingerprint: be:c9:49:11:c2:95:56:76:db:6c:0a:55:09:86:d7:6e:3b:a0:05:66:7c:44:2c:97:62:b4:fb:b7:73:de:22:8c
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Label: "GlobalSign ECC Root CA - R5"
+# Serial: 32785792099990507226680698011560947931244
+# MD5 Fingerprint: 9f:ad:3b:1c:02:1e:8a:ba:17:74:38:81:0c:a2:bc:08
+# SHA1 Fingerprint: 1f:24:c6:30:cd:a4:18:ef:20:69:ff:ad:4f:dd:5f:46:3a:1b:69:aa
+# SHA256 Fingerprint: 17:9f:bc:14:8a:3d:d0:0f:d2:4e:a1:34:58:cc:43:bf:a7:f5:9c:81:82:d7:83:a5:13:f6:eb:ec:10:0c:89:24
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Staat der Nederlanden Root CA - G3 O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA - G3 O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA - G3"
+# Serial: 10003001
+# MD5 Fingerprint: 0b:46:67:07:db:10:2f:19:8c:35:50:60:d1:0b:f4:37
+# SHA1 Fingerprint: d8:eb:6b:41:51:92:59:e0:f3:e7:85:00:c0:3d:b6:88:97:c9:ee:fc
+# SHA256 Fingerprint: 3c:4f:b0:b9:5a:b8:b3:00:32:f4:32:b8:6f:53:5f:e1:72:c1:85:d0:fd:39:86:58:37:cf:36:18:7f:a6:f4:28
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Label: "Staat der Nederlanden EV Root CA"
+# Serial: 10000013
+# MD5 Fingerprint: fc:06:af:7b:e8:1a:f1:9a:b4:e8:d2:70:1f:c0:f5:ba
+# SHA1 Fingerprint: 76:e2:7e:c1:4f:db:82:c1:c0:a6:75:b5:05:be:3d:29:b4:ed:db:bb
+# SHA256 Fingerprint: 4d:24:91:41:4c:fe:95:67:46:ec:4c:ef:a6:cf:6f:72:e2:8a:13:29:43:2f:9d:8a:90:7a:c4:cb:5d:ad:c1:5a
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Label: "IdenTrust Commercial Root CA 1"
+# Serial: 13298821034946342390520003877796839426
+# MD5 Fingerprint: b3:3e:77:73:75:ee:a0:d3:e3:7e:49:63:49:59:bb:c7
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+# Issuer: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Label: "IdenTrust Public Sector Root CA 1"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - G2"
+# Serial: 1246989352
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - EC1"
+# Serial: 51543124481930649114116133369
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Subject: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Label: "CFCA EV ROOT"
+# Serial: 407555286
+# MD5 Fingerprint: 74:e1:b6:ed:26:7a:7a:44:30:33:94:ab:7b:27:81:30
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Label: "TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5"
+# Serial: 156233699172481
+# MD5 Fingerprint: da:70:8e:f0:22:df:93:26:f6:5f:9f:d3:15:06:52:4e
+# SHA1 Fingerprint: c4:18:f6:4d:46:d1:df:00:3d:27:30:13:72:43:a9:12:11:c6:75:fb
+# SHA256 Fingerprint: 49:35:1b:90:34:44:c1:85:cc:dc:5c:69:3d:24:d8:55:5c:b2:08:d6:a8:14:13:07:69:9f:4a:f0:63:19:9d:78
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Label: "TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6"
+# Serial: 138134509972618
+# MD5 Fingerprint: f8:c5:ee:2a:6b:be:95:8d:08:f7:25:4a:ea:71:3e:46
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+# SHA256 Fingerprint: 8d:e7:86:55:e1:be:7f:78:47:80:0b:93:f6:94:d2:1d:36:8c:c0:6e:03:3e:7f:ab:04:bb:5e:b9:9d:a6:b7:00
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Certinomis - Root CA O=Certinomis OU=0002 433998903
+# Subject: CN=Certinomis - Root CA O=Certinomis OU=0002 433998903
+# Label: "Certinomis - Root CA"
+# Serial: 1
+# MD5 Fingerprint: 14:0a:fd:8d:a8:28:b5:38:69:db:56:7e:61:22:03:3f
+# SHA1 Fingerprint: 9d:70:bb:01:a5:a4:a0:18:11:2e:f7:1c:01:b9:32:c5:34:e7:88:a8
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+# Issuer: CN=Entrust.net Secure Server Certification Authority O=Entrust.net OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Subject: CN=Entrust.net Secure Server Certification Authority O=Entrust.net OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Label: "Entrust.net Secure Server CA"
+# Serial: 927650371
+# MD5 Fingerprint: df:f2:80:73:cc:f1:e6:61:73:fc:f5:42:e9:c5:7c:ee
+# SHA1 Fingerprint: 99:a6:9b:e6:1a:fe:88:6b:4d:2b:82:00:7c:b8:54:fc:31:7e:15:39
+# SHA256 Fingerprint: 62:f2:40:27:8c:56:4c:4d:d8:bf:7d:9d:4f:6f:36:6e:a8:94:d2:2f:5f:34:d9:89:a9:83:ac:ec:2f:ff:ed:50
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 2 Policy Validation Authority
+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 2 Policy Validation Authority
+# Label: "ValiCert Class 2 VA"
+# Serial: 1
+# MD5 Fingerprint: a9:23:75:9b:ba:49:36:6e:31:c2:db:f2:e7:66:ba:87
+# SHA1 Fingerprint: 31:7a:2a:d0:7f:2b:33:5e:f5:a1:c3:4e:4b:57:e8:b7:d8:f1:fc:a6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Expressz (Class C) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Expressz (Class C) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Express (Class C) Root"
+# Serial: 104
+# MD5 Fingerprint: 4f:eb:f1:f0:70:c2:80:63:5d:58:9f:da:12:3c:a9:c4
+# SHA1 Fingerprint: e3:92:51:2f:0a:cf:f5:05:df:f6:de:06:7f:75:37:e1:65:ea:57:4b
+# SHA256 Fingerprint: 0b:5e:ed:4e:84:64:03:cf:55:e0:65:84:84:40:ed:2a:82:75:8b:f5:b9:aa:1f:25:3d:46:13:cf:a0:80:ff:3f
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Uzleti (Class B) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Uzleti (Class B) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Business (Class B) Root"
+# Serial: 105
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+# SHA1 Fingerprint: 87:9f:4b:ee:05:df:98:58:3b:e3:60:d6:33:e7:0d:3f:fe:98:71:af
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 3 Policy Validation Authority
+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 3 Policy Validation Authority
+# Label: "RSA Root Certificate 1"
+# Serial: 1
+# MD5 Fingerprint: a2:6f:53:b7:ee:40:db:4a:68:e7:fa:18:d9:10:4b:72
+# SHA1 Fingerprint: 69:bd:8c:f4:9c:d3:00:fb:59:2e:17:93:ca:55:6a:f3:ec:aa:35:fb
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 1 Policy Validation Authority
+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 1 Policy Validation Authority
+# Label: "ValiCert Class 1 VA"
+# Serial: 1
+# MD5 Fingerprint: 65:58:ab:15:ad:57:6c:1e:a8:a7:b5:69:ac:bf:ff:eb
+# SHA1 Fingerprint: e5:df:74:3c:b6:01:c4:9b:98:43:dc:ab:8c:e8:6a:81:10:9f:e4:8e
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Equifax Secure eBusiness CA-1 O=Equifax Secure Inc.
+# Subject: CN=Equifax Secure eBusiness CA-1 O=Equifax Secure Inc.
+# Label: "Equifax Secure eBusiness CA 1"
+# Serial: 4
+# MD5 Fingerprint: 64:9c:ef:2e:44:fc:c6:8f:52:07:d0:51:73:8f:cb:3d
+# SHA1 Fingerprint: da:40:18:8b:91:89:a3:ed:ee:ae:da:97:fe:2f:9d:f5:b7:d1:8a:41
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Equifax Secure Global eBusiness CA-1 O=Equifax Secure Inc.
+# Subject: CN=Equifax Secure Global eBusiness CA-1 O=Equifax Secure Inc.
+# Label: "Equifax Secure Global eBusiness CA"
+# Serial: 1
+# MD5 Fingerprint: 8f:5d:77:06:27:c4:98:3c:5b:93:78:e7:d7:7d:9b:cc
+# SHA1 Fingerprint: 7e:78:4a:10:1c:82:65:cc:2d:e1:f1:6d:47:b4:40:ca:d9:0a:19:45
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Thawte Premium Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Subject: CN=Thawte Premium Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Label: "Thawte Premium Server CA"
+# Serial: 1
+# MD5 Fingerprint: 06:9f:69:79:16:66:90:02:1b:8c:8c:a2:c3:07:6f:3a
+# SHA1 Fingerprint: 62:7f:8d:78:27:65:63:99:d2:7d:7f:90:44:c9:fe:b3:f3:3e:fa:9a
+# SHA256 Fingerprint: ab:70:36:36:5c:71:54:aa:29:c2:c2:9f:5d:41:91:16:3b:16:2a:22:25:01:13:57:d5:6d:07:ff:a7:bc:1f:72
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Thawte Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Subject: CN=Thawte Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Label: "Thawte Server CA"
+# Serial: 1
+# MD5 Fingerprint: c5:70:c4:a2:ed:53:78:0c:c8:10:53:81:64:cb:d0:1d
+# SHA1 Fingerprint: 23:e5:94:94:51:95:f2:41:48:03:b4:d5:64:d2:a3:a3:f5:d8:8b:8c
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+-----BEGIN CERTIFICATE-----
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+qdq5snUb9kLy78fyGPmJvKP/iiMucEc=
+-----END CERTIFICATE-----
+
+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Label: "Verisign Class 3 Public Primary Certification Authority"
+# Serial: 149843929435818692848040365716851702463
+# MD5 Fingerprint: 10:fc:63:5d:f6:26:3e:0d:f3:25:be:5f:79:cd:67:67
+# SHA1 Fingerprint: 74:2c:31:92:e6:07:e4:24:eb:45:49:54:2b:e1:bb:c5:3e:61:74:e2
+# SHA256 Fingerprint: e7:68:56:34:ef:ac:f6:9a:ce:93:9a:6b:25:5b:7b:4f:ab:ef:42:93:5b:50:a2:65:ac:b5:cb:60:27:e4:4e:70
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Label: "Verisign Class 3 Public Primary Certification Authority"
+# Serial: 80507572722862485515306429940691309246
+# MD5 Fingerprint: ef:5a:f1:33:ef:f1:cd:bb:51:02:ee:12:14:4b:96:c4
+# SHA1 Fingerprint: a1:db:63:93:91:6f:17:e4:18:55:09:40:04:15:c7:02:40:b0:ae:6b
+# SHA256 Fingerprint: a4:b6:b3:99:6f:c2:f3:06:b3:fd:86:81:bd:63:41:3d:8c:50:09:cc:4f:a3:29:c2:cc:f0:e2:fa:1b:14:03:05
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority - G2/(c) 1998 VeriSign, Inc. - For authorized use only/VeriSign Trust Network
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority - G2/(c) 1998 VeriSign, Inc. - For authorized use only/VeriSign Trust Network
+# Label: "Verisign Class 3 Public Primary Certification Authority - G2"
+# Serial: 167285380242319648451154478808036881606
+# MD5 Fingerprint: a2:33:9b:4c:74:78:73:d4:6c:e7:c1:f3:8d:cb:5c:e9
+# SHA1 Fingerprint: 85:37:1c:a6:e5:50:14:3d:ce:28:03:47:1b:de:3a:09:e8:f8:77:0f
+# SHA256 Fingerprint: 83:ce:3c:12:29:68:8a:59:3d:48:5f:81:97:3c:0f:91:95:43:1e:da:37:cc:5e:36:43:0e:79:c7:a8:88:63:8b
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GTE CyberTrust Global Root O=GTE Corporation OU=GTE CyberTrust Solutions, Inc.
+# Subject: CN=GTE CyberTrust Global Root O=GTE Corporation OU=GTE CyberTrust Solutions, Inc.
+# Label: "GTE CyberTrust Global Root"
+# Serial: 421
+# MD5 Fingerprint: ca:3d:d3:68:f1:03:5c:d0:32:fa:b8:2b:59:e8:5a:db
+# SHA1 Fingerprint: 97:81:79:50:d8:1c:96:70:cc:34:d8:09:cf:79:44:31:36:7e:f4:74
+# SHA256 Fingerprint: a5:31:25:18:8d:21:10:aa:96:4b:02:c7:b7:c6:da:32:03:17:08:94:e5:fb:71:ff:fb:66:67:d5:e6:81:0a:36
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/certs.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/certs.py
new file mode 100644
index 0000000..f922b99
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/certs.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+requests.certs
+~~~~~~~~~~~~~~
+
+This module returns the preferred default CA certificate bundle.
+
+If you are packaging Requests, e.g., for a Linux distribution or a managed
+environment, you can change the definition of where() to return a separately
+packaged CA bundle.
+"""
+import os.path
+
+try:
+    from certifi import where
+except ImportError:
+    def where():
+        """Return the preferred certificate bundle."""
+        # vendored bundle inside Requests
+        return os.path.join(os.path.dirname(__file__), 'cacert.pem')
+
+if __name__ == '__main__':
+    print(where())
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/compat.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/compat.py
new file mode 100644
index 0000000..353ec29
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/compat.py
@@ -0,0 +1,68 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.compat
+~~~~~~~~~~~~~~~
+
+This module handles import compatibility issues between Python 2 and
+Python 3.
+"""
+
+from .packages import chardet
+
+import sys
+
+# -------
+# Pythons
+# -------
+
+# Syntax sugar.
+_ver = sys.version_info
+
+#: Python 2.x?
+is_py2 = (_ver[0] == 2)
+
+#: Python 3.x?
+is_py3 = (_ver[0] == 3)
+
+# Note: We've patched out simplejson support in pip because it prevents
+#       upgrading simplejson on Windows.
+# try:
+#     import simplejson as json
+# except (ImportError, SyntaxError):
+#     # simplejson does not support Python 3.2, it throws a SyntaxError
+#     # because of u'...' Unicode literals.
+import json
+
+# ---------
+# Specifics
+# ---------
+
+if is_py2:
+    from urllib import quote, unquote, quote_plus, unquote_plus, urlencode, getproxies, proxy_bypass
+    from urlparse import urlparse, urlunparse, urljoin, urlsplit, urldefrag
+    from urllib2 import parse_http_list
+    import cookielib
+    from Cookie import Morsel
+    from StringIO import StringIO
+    from .packages.urllib3.packages.ordered_dict import OrderedDict
+
+    builtin_str = str
+    bytes = str
+    str = unicode
+    basestring = basestring
+    numeric_types = (int, long, float)
+
+elif is_py3:
+    from urllib.parse import urlparse, urlunparse, urljoin, urlsplit, urlencode, quote, unquote, quote_plus, unquote_plus, urldefrag
+    from urllib.request import parse_http_list, getproxies, proxy_bypass
+    from http import cookiejar as cookielib
+    from http.cookies import Morsel
+    from io import StringIO
+    from collections import OrderedDict
+
+    builtin_str = str
+    str = str
+    bytes = bytes
+    basestring = (str, bytes)
+    numeric_types = (int, float)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py
new file mode 100644
index 0000000..41a2fde
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py
@@ -0,0 +1,540 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.cookies
+~~~~~~~~~~~~~~~~
+
+Compatibility code to be able to use `cookielib.CookieJar` with requests.
+
+requests.utils imports from here, so be careful with imports.
+"""
+
+import copy
+import time
+import calendar
+import collections
+from .compat import cookielib, urlparse, urlunparse, Morsel
+
+try:
+    import threading
+    # grr, pyflakes: this fixes "redefinition of unused 'threading'"
+    threading
+except ImportError:
+    import dummy_threading as threading
+
+
+class MockRequest(object):
+    """Wraps a `requests.Request` to mimic a `urllib2.Request`.
+
+    The code in `cookielib.CookieJar` expects this interface in order to correctly
+    manage cookie policies, i.e., determine whether a cookie can be set, given the
+    domains of the request and the cookie.
+
+    The original request object is read-only. The client is responsible for collecting
+    the new headers via `get_new_headers()` and interpreting them appropriately. You
+    probably want `get_cookie_header`, defined below.
+    """
+
+    def __init__(self, request):
+        self._r = request
+        self._new_headers = {}
+        self.type = urlparse(self._r.url).scheme
+
+    def get_type(self):
+        return self.type
+
+    def get_host(self):
+        return urlparse(self._r.url).netloc
+
+    def get_origin_req_host(self):
+        return self.get_host()
+
+    def get_full_url(self):
+        # Only return the response's URL if the user hadn't set the Host
+        # header
+        if not self._r.headers.get('Host'):
+            return self._r.url
+        # If they did set it, retrieve it and reconstruct the expected domain
+        host = self._r.headers['Host']
+        parsed = urlparse(self._r.url)
+        # Reconstruct the URL as we expect it
+        return urlunparse([
+            parsed.scheme, host, parsed.path, parsed.params, parsed.query,
+            parsed.fragment
+        ])
+
+    def is_unverifiable(self):
+        return True
+
+    def has_header(self, name):
+        return name in self._r.headers or name in self._new_headers
+
+    def get_header(self, name, default=None):
+        return self._r.headers.get(name, self._new_headers.get(name, default))
+
+    def add_header(self, key, val):
+        """cookielib has no legitimate use for this method; add it back if you find one."""
+        raise NotImplementedError("Cookie headers should be added with add_unredirected_header()")
+
+    def add_unredirected_header(self, name, value):
+        self._new_headers[name] = value
+
+    def get_new_headers(self):
+        return self._new_headers
+
+    @property
+    def unverifiable(self):
+        return self.is_unverifiable()
+
+    @property
+    def origin_req_host(self):
+        return self.get_origin_req_host()
+
+    @property
+    def host(self):
+        return self.get_host()
+
+
+class MockResponse(object):
+    """Wraps a `httplib.HTTPMessage` to mimic a `urllib.addinfourl`.
+
+    ...what? Basically, expose the parsed HTTP headers from the server response
+    the way `cookielib` expects to see them.
+    """
+
+    def __init__(self, headers):
+        """Make a MockResponse for `cookielib` to read.
+
+        :param headers: a httplib.HTTPMessage or analogous carrying the headers
+        """
+        self._headers = headers
+
+    def info(self):
+        return self._headers
+
+    def getheaders(self, name):
+        self._headers.getheaders(name)
+
+
+def extract_cookies_to_jar(jar, request, response):
+    """Extract the cookies from the response into a CookieJar.
+
+    :param jar: cookielib.CookieJar (not necessarily a RequestsCookieJar)
+    :param request: our own requests.Request object
+    :param response: urllib3.HTTPResponse object
+    """
+    if not (hasattr(response, '_original_response') and
+            response._original_response):
+        return
+    # the _original_response field is the wrapped httplib.HTTPResponse object,
+    req = MockRequest(request)
+    # pull out the HTTPMessage with the headers and put it in the mock:
+    res = MockResponse(response._original_response.msg)
+    jar.extract_cookies(res, req)
+
+
+def get_cookie_header(jar, request):
+    """
+    Produce an appropriate Cookie header string to be sent with `request`, or None.
+
+    :rtype: str
+    """
+    r = MockRequest(request)
+    jar.add_cookie_header(r)
+    return r.get_new_headers().get('Cookie')
+
+
+def remove_cookie_by_name(cookiejar, name, domain=None, path=None):
+    """Unsets a cookie by name, by default over all domains and paths.
+
+    Wraps CookieJar.clear(), is O(n).
+    """
+    clearables = []
+    for cookie in cookiejar:
+        if cookie.name != name:
+            continue
+        if domain is not None and domain != cookie.domain:
+            continue
+        if path is not None and path != cookie.path:
+            continue
+        clearables.append((cookie.domain, cookie.path, cookie.name))
+
+    for domain, path, name in clearables:
+        cookiejar.clear(domain, path, name)
+
+
+class CookieConflictError(RuntimeError):
+    """There are two cookies that meet the criteria specified in the cookie jar.
+    Use .get and .set and include domain and path args in order to be more specific.
+    """
+
+
+class RequestsCookieJar(cookielib.CookieJar, collections.MutableMapping):
+    """Compatibility class; is a cookielib.CookieJar, but exposes a dict
+    interface.
+
+    This is the CookieJar we create by default for requests and sessions that
+    don't specify one, since some clients may expect response.cookies and
+    session.cookies to support dict operations.
+
+    Requests does not use the dict interface internally; it's just for
+    compatibility with external client code. All requests code should work
+    out of the box with externally provided instances of ``CookieJar``, e.g.
+    ``LWPCookieJar`` and ``FileCookieJar``.
+
+    Unlike a regular CookieJar, this class is pickleable.
+
+    .. warning:: dictionary operations that are normally O(1) may be O(n).
+    """
+
+    def get(self, name, default=None, domain=None, path=None):
+        """Dict-like get() that also supports optional domain and path args in
+        order to resolve naming collisions from using one cookie jar over
+        multiple domains.
+
+        .. warning:: operation is O(n), not O(1).
+        """
+        try:
+            return self._find_no_duplicates(name, domain, path)
+        except KeyError:
+            return default
+
+    def set(self, name, value, **kwargs):
+        """Dict-like set() that also supports optional domain and path args in
+        order to resolve naming collisions from using one cookie jar over
+        multiple domains.
+        """
+        # support client code that unsets cookies by assignment of a None value:
+        if value is None:
+            remove_cookie_by_name(self, name, domain=kwargs.get('domain'), path=kwargs.get('path'))
+            return
+
+        if isinstance(value, Morsel):
+            c = morsel_to_cookie(value)
+        else:
+            c = create_cookie(name, value, **kwargs)
+        self.set_cookie(c)
+        return c
+
+    def iterkeys(self):
+        """Dict-like iterkeys() that returns an iterator of names of cookies
+        from the jar.
+
+        .. seealso:: itervalues() and iteritems().
+        """
+        for cookie in iter(self):
+            yield cookie.name
+
+    def keys(self):
+        """Dict-like keys() that returns a list of names of cookies from the
+        jar.
+
+        .. seealso:: values() and items().
+        """
+        return list(self.iterkeys())
+
+    def itervalues(self):
+        """Dict-like itervalues() that returns an iterator of values of cookies
+        from the jar.
+
+        .. seealso:: iterkeys() and iteritems().
+        """
+        for cookie in iter(self):
+            yield cookie.value
+
+    def values(self):
+        """Dict-like values() that returns a list of values of cookies from the
+        jar.
+
+        .. seealso:: keys() and items().
+        """
+        return list(self.itervalues())
+
+    def iteritems(self):
+        """Dict-like iteritems() that returns an iterator of name-value tuples
+        from the jar.
+
+        .. seealso:: iterkeys() and itervalues().
+        """
+        for cookie in iter(self):
+            yield cookie.name, cookie.value
+
+    def items(self):
+        """Dict-like items() that returns a list of name-value tuples from the
+        jar. Allows client-code to call ``dict(RequestsCookieJar)`` and get a
+        vanilla python dict of key value pairs.
+
+        .. seealso:: keys() and values().
+        """
+        return list(self.iteritems())
+
+    def list_domains(self):
+        """Utility method to list all the domains in the jar."""
+        domains = []
+        for cookie in iter(self):
+            if cookie.domain not in domains:
+                domains.append(cookie.domain)
+        return domains
+
+    def list_paths(self):
+        """Utility method to list all the paths in the jar."""
+        paths = []
+        for cookie in iter(self):
+            if cookie.path not in paths:
+                paths.append(cookie.path)
+        return paths
+
+    def multiple_domains(self):
+        """Returns True if there are multiple domains in the jar.
+        Returns False otherwise.
+
+        :rtype: bool
+        """
+        domains = []
+        for cookie in iter(self):
+            if cookie.domain is not None and cookie.domain in domains:
+                return True
+            domains.append(cookie.domain)
+        return False  # there is only one domain in jar
+
+    def get_dict(self, domain=None, path=None):
+        """Takes as an argument an optional domain and path and returns a plain
+        old Python dict of name-value pairs of cookies that meet the
+        requirements.
+
+        :rtype: dict
+        """
+        dictionary = {}
+        for cookie in iter(self):
+            if (domain is None or cookie.domain == domain) and (path is None
+                                                or cookie.path == path):
+                dictionary[cookie.name] = cookie.value
+        return dictionary
+
+    def __contains__(self, name):
+        try:
+            return super(RequestsCookieJar, self).__contains__(name)
+        except CookieConflictError:
+            return True
+
+    def __getitem__(self, name):
+        """Dict-like __getitem__() for compatibility with client code. Throws
+        exception if there are more than one cookie with name. In that case,
+        use the more explicit get() method instead.
+
+        .. warning:: operation is O(n), not O(1).
+        """
+        return self._find_no_duplicates(name)
+
+    def __setitem__(self, name, value):
+        """Dict-like __setitem__ for compatibility with client code. Throws
+        exception if there is already a cookie of that name in the jar. In that
+        case, use the more explicit set() method instead.
+        """
+        self.set(name, value)
+
+    def __delitem__(self, name):
+        """Deletes a cookie given a name. Wraps ``cookielib.CookieJar``'s
+        ``remove_cookie_by_name()``.
+        """
+        remove_cookie_by_name(self, name)
+
+    def set_cookie(self, cookie, *args, **kwargs):
+        if hasattr(cookie.value, 'startswith') and cookie.value.startswith('"') and cookie.value.endswith('"'):
+            cookie.value = cookie.value.replace('\\"', '')
+        return super(RequestsCookieJar, self).set_cookie(cookie, *args, **kwargs)
+
+    def update(self, other):
+        """Updates this jar with cookies from another CookieJar or dict-like"""
+        if isinstance(other, cookielib.CookieJar):
+            for cookie in other:
+                self.set_cookie(copy.copy(cookie))
+        else:
+            super(RequestsCookieJar, self).update(other)
+
+    def _find(self, name, domain=None, path=None):
+        """Requests uses this method internally to get cookie values.
+
+        If there are conflicting cookies, _find arbitrarily chooses one.
+        See _find_no_duplicates if you want an exception thrown if there are
+        conflicting cookies.
+
+        :param name: a string containing name of cookie
+        :param domain: (optional) string containing domain of cookie
+        :param path: (optional) string containing path of cookie
+        :return: cookie.value
+        """
+        for cookie in iter(self):
+            if cookie.name == name:
+                if domain is None or cookie.domain == domain:
+                    if path is None or cookie.path == path:
+                        return cookie.value
+
+        raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
+
+    def _find_no_duplicates(self, name, domain=None, path=None):
+        """Both ``__get_item__`` and ``get`` call this function: it's never
+        used elsewhere in Requests.
+
+        :param name: a string containing name of cookie
+        :param domain: (optional) string containing domain of cookie
+        :param path: (optional) string containing path of cookie
+        :raises KeyError: if cookie is not found
+        :raises CookieConflictError: if there are multiple cookies
+            that match name and optionally domain and path
+        :return: cookie.value
+        """
+        toReturn = None
+        for cookie in iter(self):
+            if cookie.name == name:
+                if domain is None or cookie.domain == domain:
+                    if path is None or cookie.path == path:
+                        if toReturn is not None:  # if there are multiple cookies that meet passed in criteria
+                            raise CookieConflictError('There are multiple cookies with name, %r' % (name))
+                        toReturn = cookie.value  # we will eventually return this as long as no cookie conflict
+
+        if toReturn:
+            return toReturn
+        raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
+
+    def __getstate__(self):
+        """Unlike a normal CookieJar, this class is pickleable."""
+        state = self.__dict__.copy()
+        # remove the unpickleable RLock object
+        state.pop('_cookies_lock')
+        return state
+
+    def __setstate__(self, state):
+        """Unlike a normal CookieJar, this class is pickleable."""
+        self.__dict__.update(state)
+        if '_cookies_lock' not in self.__dict__:
+            self._cookies_lock = threading.RLock()
+
+    def copy(self):
+        """Return a copy of this RequestsCookieJar."""
+        new_cj = RequestsCookieJar()
+        new_cj.update(self)
+        return new_cj
+
+
+def _copy_cookie_jar(jar):
+    if jar is None:
+        return None
+
+    if hasattr(jar, 'copy'):
+        # We're dealing with an instance of RequestsCookieJar
+        return jar.copy()
+    # We're dealing with a generic CookieJar instance
+    new_jar = copy.copy(jar)
+    new_jar.clear()
+    for cookie in jar:
+        new_jar.set_cookie(copy.copy(cookie))
+    return new_jar
+
+
+def create_cookie(name, value, **kwargs):
+    """Make a cookie from underspecified parameters.
+
+    By default, the pair of `name` and `value` will be set for the domain ''
+    and sent on every request (this is sometimes called a "supercookie").
+    """
+    result = dict(
+        version=0,
+        name=name,
+        value=value,
+        port=None,
+        domain='',
+        path='/',
+        secure=False,
+        expires=None,
+        discard=True,
+        comment=None,
+        comment_url=None,
+        rest={'HttpOnly': None},
+        rfc2109=False,)
+
+    badargs = set(kwargs) - set(result)
+    if badargs:
+        err = 'create_cookie() got unexpected keyword arguments: %s'
+        raise TypeError(err % list(badargs))
+
+    result.update(kwargs)
+    result['port_specified'] = bool(result['port'])
+    result['domain_specified'] = bool(result['domain'])
+    result['domain_initial_dot'] = result['domain'].startswith('.')
+    result['path_specified'] = bool(result['path'])
+
+    return cookielib.Cookie(**result)
+
+
+def morsel_to_cookie(morsel):
+    """Convert a Morsel object into a Cookie containing the one k/v pair."""
+
+    expires = None
+    if morsel['max-age']:
+        try:
+            expires = int(time.time() + int(morsel['max-age']))
+        except ValueError:
+            raise TypeError('max-age: %s must be integer' % morsel['max-age'])
+    elif morsel['expires']:
+        time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
+        expires = calendar.timegm(
+            time.strptime(morsel['expires'], time_template)
+        )
+    return create_cookie(
+        comment=morsel['comment'],
+        comment_url=bool(morsel['comment']),
+        discard=False,
+        domain=morsel['domain'],
+        expires=expires,
+        name=morsel.key,
+        path=morsel['path'],
+        port=None,
+        rest={'HttpOnly': morsel['httponly']},
+        rfc2109=False,
+        secure=bool(morsel['secure']),
+        value=morsel.value,
+        version=morsel['version'] or 0,
+    )
+
+
+def cookiejar_from_dict(cookie_dict, cookiejar=None, overwrite=True):
+    """Returns a CookieJar from a key/value dictionary.
+
+    :param cookie_dict: Dict of key/values to insert into CookieJar.
+    :param cookiejar: (optional) A cookiejar to add the cookies to.
+    :param overwrite: (optional) If False, will not replace cookies
+        already in the jar with new ones.
+    """
+    if cookiejar is None:
+        cookiejar = RequestsCookieJar()
+
+    if cookie_dict is not None:
+        names_from_jar = [cookie.name for cookie in cookiejar]
+        for name in cookie_dict:
+            if overwrite or (name not in names_from_jar):
+                cookiejar.set_cookie(create_cookie(name, cookie_dict[name]))
+
+    return cookiejar
+
+
+def merge_cookies(cookiejar, cookies):
+    """Add cookies to cookiejar and returns a merged CookieJar.
+
+    :param cookiejar: CookieJar object to add the cookies to.
+    :param cookies: Dictionary or CookieJar object to be added.
+    """
+    if not isinstance(cookiejar, cookielib.CookieJar):
+        raise ValueError('You can only merge into CookieJar')
+
+    if isinstance(cookies, dict):
+        cookiejar = cookiejar_from_dict(
+            cookies, cookiejar=cookiejar, overwrite=False)
+    elif isinstance(cookies, cookielib.CookieJar):
+        try:
+            cookiejar.update(cookies)
+        except AttributeError:
+            for cookie_in_jar in cookies:
+                cookiejar.set_cookie(cookie_in_jar)
+
+    return cookiejar
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py
new file mode 100644
index 0000000..b89e0cc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py
@@ -0,0 +1,114 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.exceptions
+~~~~~~~~~~~~~~~~~~~
+
+This module contains the set of Requests' exceptions.
+"""
+from .packages.urllib3.exceptions import HTTPError as BaseHTTPError
+
+
+class RequestException(IOError):
+    """There was an ambiguous exception that occurred while handling your
+    request.
+    """
+
+    def __init__(self, *args, **kwargs):
+        """Initialize RequestException with `request` and `response` objects."""
+        response = kwargs.pop('response', None)
+        self.response = response
+        self.request = kwargs.pop('request', None)
+        if (response is not None and not self.request and
+                hasattr(response, 'request')):
+            self.request = self.response.request
+        super(RequestException, self).__init__(*args, **kwargs)
+
+
+class HTTPError(RequestException):
+    """An HTTP error occurred."""
+
+
+class ConnectionError(RequestException):
+    """A Connection error occurred."""
+
+
+class ProxyError(ConnectionError):
+    """A proxy error occurred."""
+
+
+class SSLError(ConnectionError):
+    """An SSL error occurred."""
+
+
+class Timeout(RequestException):
+    """The request timed out.
+
+    Catching this error will catch both
+    :exc:`~requests.exceptions.ConnectTimeout` and
+    :exc:`~requests.exceptions.ReadTimeout` errors.
+    """
+
+
+class ConnectTimeout(ConnectionError, Timeout):
+    """The request timed out while trying to connect to the remote server.
+
+    Requests that produced this error are safe to retry.
+    """
+
+
+class ReadTimeout(Timeout):
+    """The server did not send any data in the allotted amount of time."""
+
+
+class URLRequired(RequestException):
+    """A valid URL is required to make a request."""
+
+
+class TooManyRedirects(RequestException):
+    """Too many redirects."""
+
+
+class MissingSchema(RequestException, ValueError):
+    """The URL schema (e.g. http or https) is missing."""
+
+
+class InvalidSchema(RequestException, ValueError):
+    """See defaults.py for valid schemas."""
+
+
+class InvalidURL(RequestException, ValueError):
+    """The URL provided was somehow invalid."""
+
+
+class InvalidHeader(RequestException, ValueError):
+    """The header value provided was somehow invalid."""
+
+
+class ChunkedEncodingError(RequestException):
+    """The server declared chunked encoding but sent an invalid chunk."""
+
+
+class ContentDecodingError(RequestException, BaseHTTPError):
+    """Failed to decode response content"""
+
+
+class StreamConsumedError(RequestException, TypeError):
+    """The content for this response was already consumed"""
+
+
+class RetryError(RequestException):
+    """Custom retries logic failed"""
+
+
+# Warnings
+
+
+class RequestsWarning(Warning):
+    """Base warning for Requests."""
+    pass
+
+
+class FileModeWarning(RequestsWarning, DeprecationWarning):
+    """A file was opened in text mode, but Requests determined its binary length."""
+    pass
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py
new file mode 100644
index 0000000..32b32de
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.hooks
+~~~~~~~~~~~~~~
+
+This module provides the capabilities for the Requests hooks system.
+
+Available hooks:
+
+``response``:
+    The response generated from a Request.
+"""
+HOOKS = ['response']
+
+
+def default_hooks():
+    return dict((event, []) for event in HOOKS)
+
+# TODO: response is the only one
+
+
+def dispatch_hook(key, hooks, hook_data, **kwargs):
+    """Dispatches a hook dictionary on a given piece of data."""
+    hooks = hooks or dict()
+    hooks = hooks.get(key)
+    if hooks:
+        if hasattr(hooks, '__call__'):
+            hooks = [hooks]
+        for hook in hooks:
+            _hook_data = hook(hook_data, **kwargs)
+            if _hook_data is not None:
+                hook_data = _hook_data
+    return hook_data
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/models.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/models.py
new file mode 100644
index 0000000..11434ef
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/models.py
@@ -0,0 +1,873 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.models
+~~~~~~~~~~~~~~~
+
+This module contains the primary objects that power Requests.
+"""
+
+import collections
+import datetime
+
+from io import BytesIO, UnsupportedOperation
+from .hooks import default_hooks
+from .structures import CaseInsensitiveDict
+
+from .auth import HTTPBasicAuth
+from .cookies import cookiejar_from_dict, get_cookie_header, _copy_cookie_jar
+from .packages.urllib3.fields import RequestField
+from .packages.urllib3.filepost import encode_multipart_formdata
+from .packages.urllib3.util import parse_url
+from .packages.urllib3.exceptions import (
+    DecodeError, ReadTimeoutError, ProtocolError, LocationParseError)
+from .exceptions import (
+    HTTPError, MissingSchema, InvalidURL, ChunkedEncodingError,
+    ContentDecodingError, ConnectionError, StreamConsumedError)
+from .utils import (
+    guess_filename, get_auth_from_url, requote_uri,
+    stream_decode_response_unicode, to_key_val_list, parse_header_links,
+    iter_slices, guess_json_utf, super_len, to_native_string,
+    check_header_validity)
+from .compat import (
+    cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
+    is_py2, chardet, builtin_str, basestring)
+from .compat import json as complexjson
+from .status_codes import codes
+
+#: The set of HTTP status codes that indicate an automatically
+#: processable redirect.
+REDIRECT_STATI = (
+    codes.moved,               # 301
+    codes.found,               # 302
+    codes.other,               # 303
+    codes.temporary_redirect,  # 307
+    codes.permanent_redirect,  # 308
+)
+
+DEFAULT_REDIRECT_LIMIT = 30
+CONTENT_CHUNK_SIZE = 10 * 1024
+ITER_CHUNK_SIZE = 512
+
+
+class RequestEncodingMixin(object):
+    @property
+    def path_url(self):
+        """Build the path URL to use."""
+
+        url = []
+
+        p = urlsplit(self.url)
+
+        path = p.path
+        if not path:
+            path = '/'
+
+        url.append(path)
+
+        query = p.query
+        if query:
+            url.append('?')
+            url.append(query)
+
+        return ''.join(url)
+
+    @staticmethod
+    def _encode_params(data):
+        """Encode parameters in a piece of data.
+
+        Will successfully encode parameters when passed as a dict or a list of
+        2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
+        if parameters are supplied as a dict.
+        """
+
+        if isinstance(data, (str, bytes)):
+            return data
+        elif hasattr(data, 'read'):
+            return data
+        elif hasattr(data, '__iter__'):
+            result = []
+            for k, vs in to_key_val_list(data):
+                if isinstance(vs, basestring) or not hasattr(vs, '__iter__'):
+                    vs = [vs]
+                for v in vs:
+                    if v is not None:
+                        result.append(
+                            (k.encode('utf-8') if isinstance(k, str) else k,
+                             v.encode('utf-8') if isinstance(v, str) else v))
+            return urlencode(result, doseq=True)
+        else:
+            return data
+
+    @staticmethod
+    def _encode_files(files, data):
+        """Build the body for a multipart/form-data request.
+
+        Will successfully encode files when passed as a dict or a list of
+        tuples. Order is retained if data is a list of tuples but arbitrary
+        if parameters are supplied as a dict.
+        The tuples may be 2-tuples (filename, fileobj), 3-tuples (filename, fileobj, contentype)
+        or 4-tuples (filename, fileobj, contentype, custom_headers).
+        """
+        if (not files):
+            raise ValueError("Files must be provided.")
+        elif isinstance(data, basestring):
+            raise ValueError("Data must not be a string.")
+
+        new_fields = []
+        fields = to_key_val_list(data or {})
+        files = to_key_val_list(files or {})
+
+        for field, val in fields:
+            if isinstance(val, basestring) or not hasattr(val, '__iter__'):
+                val = [val]
+            for v in val:
+                if v is not None:
+                    # Don't call str() on bytestrings: in Py3 it all goes wrong.
+                    if not isinstance(v, bytes):
+                        v = str(v)
+
+                    new_fields.append(
+                        (field.decode('utf-8') if isinstance(field, bytes) else field,
+                         v.encode('utf-8') if isinstance(v, str) else v))
+
+        for (k, v) in files:
+            # support for explicit filename
+            ft = None
+            fh = None
+            if isinstance(v, (tuple, list)):
+                if len(v) == 2:
+                    fn, fp = v
+                elif len(v) == 3:
+                    fn, fp, ft = v
+                else:
+                    fn, fp, ft, fh = v
+            else:
+                fn = guess_filename(v) or k
+                fp = v
+
+            if isinstance(fp, (str, bytes, bytearray)):
+                fdata = fp
+            else:
+                fdata = fp.read()
+
+            rf = RequestField(name=k, data=fdata, filename=fn, headers=fh)
+            rf.make_multipart(content_type=ft)
+            new_fields.append(rf)
+
+        body, content_type = encode_multipart_formdata(new_fields)
+
+        return body, content_type
+
+
+class RequestHooksMixin(object):
+    def register_hook(self, event, hook):
+        """Properly register a hook."""
+
+        if event not in self.hooks:
+            raise ValueError('Unsupported event specified, with event name "%s"' % (event))
+
+        if isinstance(hook, collections.Callable):
+            self.hooks[event].append(hook)
+        elif hasattr(hook, '__iter__'):
+            self.hooks[event].extend(h for h in hook if isinstance(h, collections.Callable))
+
+    def deregister_hook(self, event, hook):
+        """Deregister a previously registered hook.
+        Returns True if the hook existed, False if not.
+        """
+
+        try:
+            self.hooks[event].remove(hook)
+            return True
+        except ValueError:
+            return False
+
+
+class Request(RequestHooksMixin):
+    """A user-created :class:`Request <Request>` object.
+
+    Used to prepare a :class:`PreparedRequest <PreparedRequest>`, which is sent to the server.
+
+    :param method: HTTP method to use.
+    :param url: URL to send.
+    :param headers: dictionary of headers to send.
+    :param files: dictionary of {filename: fileobject} files to multipart upload.
+    :param data: the body to attach to the request. If a dictionary is provided, form-encoding will take place.
+    :param json: json for the body to attach to the request (if files or data is not specified).
+    :param params: dictionary of URL parameters to append to the URL.
+    :param auth: Auth handler or (user, pass) tuple.
+    :param cookies: dictionary or CookieJar of cookies to attach to this request.
+    :param hooks: dictionary of callback hooks, for internal usage.
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.Request('GET', 'http://httpbin.org/get')
+      >>> req.prepare()
+      <PreparedRequest [GET]>
+    """
+
+    def __init__(self, method=None, url=None, headers=None, files=None,
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
+
+        # Default empty dicts for dict params.
+        data = [] if data is None else data
+        files = [] if files is None else files
+        headers = {} if headers is None else headers
+        params = {} if params is None else params
+        hooks = {} if hooks is None else hooks
+
+        self.hooks = default_hooks()
+        for (k, v) in list(hooks.items()):
+            self.register_hook(event=k, hook=v)
+
+        self.method = method
+        self.url = url
+        self.headers = headers
+        self.files = files
+        self.data = data
+        self.json = json
+        self.params = params
+        self.auth = auth
+        self.cookies = cookies
+
+    def __repr__(self):
+        return '<Request [%s]>' % (self.method)
+
+    def prepare(self):
+        """Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it."""
+        p = PreparedRequest()
+        p.prepare(
+            method=self.method,
+            url=self.url,
+            headers=self.headers,
+            files=self.files,
+            data=self.data,
+            json=self.json,
+            params=self.params,
+            auth=self.auth,
+            cookies=self.cookies,
+            hooks=self.hooks,
+        )
+        return p
+
+
+class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
+    """The fully mutable :class:`PreparedRequest <PreparedRequest>` object,
+    containing the exact bytes that will be sent to the server.
+
+    Generated from either a :class:`Request <Request>` object or manually.
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.Request('GET', 'http://httpbin.org/get')
+      >>> r = req.prepare()
+      <PreparedRequest [GET]>
+
+      >>> s = requests.Session()
+      >>> s.send(r)
+      <Response [200]>
+    """
+
+    def __init__(self):
+        #: HTTP verb to send to the server.
+        self.method = None
+        #: HTTP URL to send the request to.
+        self.url = None
+        #: dictionary of HTTP headers.
+        self.headers = None
+        # The `CookieJar` used to create the Cookie header will be stored here
+        # after prepare_cookies is called
+        self._cookies = None
+        #: request body to send to the server.
+        self.body = None
+        #: dictionary of callback hooks, for internal usage.
+        self.hooks = default_hooks()
+
+    def prepare(self, method=None, url=None, headers=None, files=None,
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
+        """Prepares the entire request with the given parameters."""
+
+        self.prepare_method(method)
+        self.prepare_url(url, params)
+        self.prepare_headers(headers)
+        self.prepare_cookies(cookies)
+        self.prepare_body(data, files, json)
+        self.prepare_auth(auth, url)
+
+        # Note that prepare_auth must be last to enable authentication schemes
+        # such as OAuth to work on a fully prepared request.
+
+        # This MUST go after prepare_auth. Authenticators could add a hook
+        self.prepare_hooks(hooks)
+
+    def __repr__(self):
+        return '<PreparedRequest [%s]>' % (self.method)
+
+    def copy(self):
+        p = PreparedRequest()
+        p.method = self.method
+        p.url = self.url
+        p.headers = self.headers.copy() if self.headers is not None else None
+        p._cookies = _copy_cookie_jar(self._cookies)
+        p.body = self.body
+        p.hooks = self.hooks
+        return p
+
+    def prepare_method(self, method):
+        """Prepares the given HTTP method."""
+        self.method = method
+        if self.method is not None:
+            self.method = to_native_string(self.method.upper())
+
+    def prepare_url(self, url, params):
+        """Prepares the given HTTP URL."""
+        #: Accept objects that have string representations.
+        #: We're unable to blindly call unicode/str functions
+        #: as this will include the bytestring indicator (b'')
+        #: on python 3.x.
+        #: https://github.com/kennethreitz/requests/pull/2238
+        if isinstance(url, bytes):
+            url = url.decode('utf8')
+        else:
+            url = unicode(url) if is_py2 else str(url)
+
+        # Don't do any URL preparation for non-HTTP schemes like `mailto`,
+        # `data` etc to work around exceptions from `url_parse`, which
+        # handles RFC 3986 only.
+        if ':' in url and not url.lower().startswith('http'):
+            self.url = url
+            return
+
+        # Support for unicode domain names and paths.
+        try:
+            scheme, auth, host, port, path, query, fragment = parse_url(url)
+        except LocationParseError as e:
+            raise InvalidURL(*e.args)
+
+        if not scheme:
+            error = ("Invalid URL {0!r}: No schema supplied. Perhaps you meant http://{0}?")
+            error = error.format(to_native_string(url, 'utf8'))
+
+            raise MissingSchema(error)
+
+        if not host:
+            raise InvalidURL("Invalid URL %r: No host supplied" % url)
+
+        # Only want to apply IDNA to the hostname
+        try:
+            host = host.encode('idna').decode('utf-8')
+        except UnicodeError:
+            raise InvalidURL('URL has an invalid label.')
+
+        # Carefully reconstruct the network location
+        netloc = auth or ''
+        if netloc:
+            netloc += '@'
+        netloc += host
+        if port:
+            netloc += ':' + str(port)
+
+        # Bare domains aren't valid URLs.
+        if not path:
+            path = '/'
+
+        if is_py2:
+            if isinstance(scheme, str):
+                scheme = scheme.encode('utf-8')
+            if isinstance(netloc, str):
+                netloc = netloc.encode('utf-8')
+            if isinstance(path, str):
+                path = path.encode('utf-8')
+            if isinstance(query, str):
+                query = query.encode('utf-8')
+            if isinstance(fragment, str):
+                fragment = fragment.encode('utf-8')
+
+        if isinstance(params, (str, bytes)):
+            params = to_native_string(params)
+
+        enc_params = self._encode_params(params)
+        if enc_params:
+            if query:
+                query = '%s&%s' % (query, enc_params)
+            else:
+                query = enc_params
+
+        url = requote_uri(urlunparse([scheme, netloc, path, None, query, fragment]))
+        self.url = url
+
+    def prepare_headers(self, headers):
+        """Prepares the given HTTP headers."""
+
+        self.headers = CaseInsensitiveDict()
+        if headers:
+            for header in headers.items():
+                # Raise exception on invalid header value.
+                check_header_validity(header)
+                name, value = header
+                self.headers[to_native_string(name)] = value
+
+    def prepare_body(self, data, files, json=None):
+        """Prepares the given HTTP body data."""
+
+        # Check if file, fo, generator, iterator.
+        # If not, run through normal process.
+
+        # Nottin' on you.
+        body = None
+        content_type = None
+        length = None
+
+        if not data and json is not None:
+            # urllib3 requires a bytes-like body. Python 2's json.dumps
+            # provides this natively, but Python 3 gives a Unicode string.
+            content_type = 'application/json'
+            body = complexjson.dumps(json)
+            if not isinstance(body, bytes):
+                body = body.encode('utf-8')
+
+        is_stream = all([
+            hasattr(data, '__iter__'),
+            not isinstance(data, (basestring, list, tuple, dict))
+        ])
+
+        try:
+            length = super_len(data)
+        except (TypeError, AttributeError, UnsupportedOperation):
+            length = None
+
+        if is_stream:
+            body = data
+
+            if files:
+                raise NotImplementedError('Streamed bodies and files are mutually exclusive.')
+
+            if length:
+                self.headers['Content-Length'] = builtin_str(length)
+            else:
+                self.headers['Transfer-Encoding'] = 'chunked'
+        else:
+            # Multi-part file uploads.
+            if files:
+                (body, content_type) = self._encode_files(files, data)
+            else:
+                if data:
+                    body = self._encode_params(data)
+                    if isinstance(data, basestring) or hasattr(data, 'read'):
+                        content_type = None
+                    else:
+                        content_type = 'application/x-www-form-urlencoded'
+
+            self.prepare_content_length(body)
+
+            # Add content-type if it wasn't explicitly provided.
+            if content_type and ('content-type' not in self.headers):
+                self.headers['Content-Type'] = content_type
+
+        self.body = body
+
+    def prepare_content_length(self, body):
+        if hasattr(body, 'seek') and hasattr(body, 'tell'):
+            curr_pos = body.tell()
+            body.seek(0, 2)
+            end_pos = body.tell()
+            self.headers['Content-Length'] = builtin_str(max(0, end_pos - curr_pos))
+            body.seek(curr_pos, 0)
+        elif body is not None:
+            l = super_len(body)
+            if l:
+                self.headers['Content-Length'] = builtin_str(l)
+        elif (self.method not in ('GET', 'HEAD')) and (self.headers.get('Content-Length') is None):
+            self.headers['Content-Length'] = '0'
+
+    def prepare_auth(self, auth, url=''):
+        """Prepares the given HTTP auth data."""
+
+        # If no Auth is explicitly provided, extract it from the URL first.
+        if auth is None:
+            url_auth = get_auth_from_url(self.url)
+            auth = url_auth if any(url_auth) else None
+
+        if auth:
+            if isinstance(auth, tuple) and len(auth) == 2:
+                # special-case basic HTTP auth
+                auth = HTTPBasicAuth(*auth)
+
+            # Allow auth to make its changes.
+            r = auth(self)
+
+            # Update self to reflect the auth changes.
+            self.__dict__.update(r.__dict__)
+
+            # Recompute Content-Length
+            self.prepare_content_length(self.body)
+
+    def prepare_cookies(self, cookies):
+        """Prepares the given HTTP cookie data.
+
+        This function eventually generates a ``Cookie`` header from the
+        given cookies using cookielib. Due to cookielib's design, the header
+        will not be regenerated if it already exists, meaning this function
+        can only be called once for the life of the
+        :class:`PreparedRequest <PreparedRequest>` object. Any subsequent calls
+        to ``prepare_cookies`` will have no actual effect, unless the "Cookie"
+        header is removed beforehand.
+        """
+        if isinstance(cookies, cookielib.CookieJar):
+            self._cookies = cookies
+        else:
+            self._cookies = cookiejar_from_dict(cookies)
+
+        cookie_header = get_cookie_header(self._cookies, self)
+        if cookie_header is not None:
+            self.headers['Cookie'] = cookie_header
+
+    def prepare_hooks(self, hooks):
+        """Prepares the given hooks."""
+        # hooks can be passed as None to the prepare method and to this
+        # method. To prevent iterating over None, simply use an empty list
+        # if hooks is False-y
+        hooks = hooks or []
+        for event in hooks:
+            self.register_hook(event, hooks[event])
+
+
+class Response(object):
+    """The :class:`Response <Response>` object, which contains a
+    server's response to an HTTP request.
+    """
+
+    __attrs__ = [
+        '_content', 'status_code', 'headers', 'url', 'history',
+        'encoding', 'reason', 'cookies', 'elapsed', 'request'
+    ]
+
+    def __init__(self):
+        super(Response, self).__init__()
+
+        self._content = False
+        self._content_consumed = False
+
+        #: Integer Code of responded HTTP Status, e.g. 404 or 200.
+        self.status_code = None
+
+        #: Case-insensitive Dictionary of Response Headers.
+        #: For example, ``headers['content-encoding']`` will return the
+        #: value of a ``'Content-Encoding'`` response header.
+        self.headers = CaseInsensitiveDict()
+
+        #: File-like object representation of response (for advanced usage).
+        #: Use of ``raw`` requires that ``stream=True`` be set on the request.
+        # This requirement does not apply for use internally to Requests.
+        self.raw = None
+
+        #: Final URL location of Response.
+        self.url = None
+
+        #: Encoding to decode with when accessing r.text.
+        self.encoding = None
+
+        #: A list of :class:`Response <Response>` objects from
+        #: the history of the Request. Any redirect responses will end
+        #: up here. The list is sorted from the oldest to the most recent request.
+        self.history = []
+
+        #: Textual reason of responded HTTP Status, e.g. "Not Found" or "OK".
+        self.reason = None
+
+        #: A CookieJar of Cookies the server sent back.
+        self.cookies = cookiejar_from_dict({})
+
+        #: The amount of time elapsed between sending the request
+        #: and the arrival of the response (as a timedelta).
+        #: This property specifically measures the time taken between sending
+        #: the first byte of the request and finishing parsing the headers. It
+        #: is therefore unaffected by consuming the response content or the
+        #: value of the ``stream`` keyword argument.
+        self.elapsed = datetime.timedelta(0)
+
+        #: The :class:`PreparedRequest <PreparedRequest>` object to which this
+        #: is a response.
+        self.request = None
+
+    def __getstate__(self):
+        # Consume everything; accessing the content attribute makes
+        # sure the content has been fully read.
+        if not self._content_consumed:
+            self.content
+
+        return dict(
+            (attr, getattr(self, attr, None))
+            for attr in self.__attrs__
+        )
+
+    def __setstate__(self, state):
+        for name, value in state.items():
+            setattr(self, name, value)
+
+        # pickled objects do not have .raw
+        setattr(self, '_content_consumed', True)
+        setattr(self, 'raw', None)
+
+    def __repr__(self):
+        return '<Response [%s]>' % (self.status_code)
+
+    def __bool__(self):
+        """Returns true if :attr:`status_code` is 'OK'."""
+        return self.ok
+
+    def __nonzero__(self):
+        """Returns true if :attr:`status_code` is 'OK'."""
+        return self.ok
+
+    def __iter__(self):
+        """Allows you to use a response as an iterator."""
+        return self.iter_content(128)
+
+    @property
+    def ok(self):
+        try:
+            self.raise_for_status()
+        except HTTPError:
+            return False
+        return True
+
+    @property
+    def is_redirect(self):
+        """True if this Response is a well-formed HTTP redirect that could have
+        been processed automatically (by :meth:`Session.resolve_redirects`).
+        """
+        return ('location' in self.headers and self.status_code in REDIRECT_STATI)
+
+    @property
+    def is_permanent_redirect(self):
+        """True if this Response one of the permanent versions of redirect"""
+        return ('location' in self.headers and self.status_code in (codes.moved_permanently, codes.permanent_redirect))
+
+    @property
+    def apparent_encoding(self):
+        """The apparent encoding, provided by the chardet library"""
+        return chardet.detect(self.content)['encoding']
+
+    def iter_content(self, chunk_size=1, decode_unicode=False):
+        """Iterates over the response data.  When stream=True is set on the
+        request, this avoids reading the content at once into memory for
+        large responses.  The chunk size is the number of bytes it should
+        read into memory.  This is not necessarily the length of each item
+        returned as decoding can take place.
+
+        chunk_size must be of type int or None. A value of None will
+        function differently depending on the value of `stream`.
+        stream=True will read data as it arrives in whatever size the
+        chunks are received. If stream=False, data is returned as
+        a single chunk.
+
+        If decode_unicode is True, content will be decoded using the best
+        available encoding based on the response.
+        """
+
+        def generate():
+            # Special case for urllib3.
+            if hasattr(self.raw, 'stream'):
+                try:
+                    for chunk in self.raw.stream(chunk_size, decode_content=True):
+                        yield chunk
+                except ProtocolError as e:
+                    raise ChunkedEncodingError(e)
+                except DecodeError as e:
+                    raise ContentDecodingError(e)
+                except ReadTimeoutError as e:
+                    raise ConnectionError(e)
+            else:
+                # Standard file-like object.
+                while True:
+                    chunk = self.raw.read(chunk_size)
+                    if not chunk:
+                        break
+                    yield chunk
+
+            self._content_consumed = True
+
+        if self._content_consumed and isinstance(self._content, bool):
+            raise StreamConsumedError()
+        elif chunk_size is not None and not isinstance(chunk_size, int):
+            raise TypeError("chunk_size must be an int, it is instead a %s." % type(chunk_size))
+        # simulate reading small chunks of the content
+        reused_chunks = iter_slices(self._content, chunk_size)
+
+        stream_chunks = generate()
+
+        chunks = reused_chunks if self._content_consumed else stream_chunks
+
+        if decode_unicode:
+            chunks = stream_decode_response_unicode(chunks, self)
+
+        return chunks
+
+    def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=None, delimiter=None):
+        """Iterates over the response data, one line at a time.  When
+        stream=True is set on the request, this avoids reading the
+        content at once into memory for large responses.
+
+        .. note:: This method is not reentrant safe.
+        """
+
+        pending = None
+
+        for chunk in self.iter_content(chunk_size=chunk_size, decode_unicode=decode_unicode):
+
+            if pending is not None:
+                chunk = pending + chunk
+
+            if delimiter:
+                lines = chunk.split(delimiter)
+            else:
+                lines = chunk.splitlines()
+
+            if lines and lines[-1] and chunk and lines[-1][-1] == chunk[-1]:
+                pending = lines.pop()
+            else:
+                pending = None
+
+            for line in lines:
+                yield line
+
+        if pending is not None:
+            yield pending
+
+    @property
+    def content(self):
+        """Content of the response, in bytes."""
+
+        if self._content is False:
+            # Read the contents.
+            try:
+                if self._content_consumed:
+                    raise RuntimeError(
+                        'The content for this response was already consumed')
+
+                if self.status_code == 0:
+                    self._content = None
+                else:
+                    self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
+
+            except AttributeError:
+                self._content = None
+
+        self._content_consumed = True
+        # don't need to release the connection; that's been handled by urllib3
+        # since we exhausted the data.
+        return self._content
+
+    @property
+    def text(self):
+        """Content of the response, in unicode.
+
+        If Response.encoding is None, encoding will be guessed using
+        ``chardet``.
+
+        The encoding of the response content is determined based solely on HTTP
+        headers, following RFC 2616 to the letter. If you can take advantage of
+        non-HTTP knowledge to make a better guess at the encoding, you should
+        set ``r.encoding`` appropriately before accessing this property.
+        """
+
+        # Try charset from content-type
+        content = None
+        encoding = self.encoding
+
+        if not self.content:
+            return str('')
+
+        # Fallback to auto-detected encoding.
+        if self.encoding is None:
+            encoding = self.apparent_encoding
+
+        # Decode unicode from given encoding.
+        try:
+            content = str(self.content, encoding, errors='replace')
+        except (LookupError, TypeError):
+            # A LookupError is raised if the encoding was not found which could
+            # indicate a misspelling or similar mistake.
+            #
+            # A TypeError can be raised if encoding is None
+            #
+            # So we try blindly encoding.
+            content = str(self.content, errors='replace')
+
+        return content
+
+    def json(self, **kwargs):
+        """Returns the json-encoded content of a response, if any.
+
+        :param \*\*kwargs: Optional arguments that ``json.loads`` takes.
+        """
+
+        if not self.encoding and self.content and len(self.content) > 3:
+            # No encoding set. JSON RFC 4627 section 3 states we should expect
+            # UTF-8, -16 or -32. Detect which one to use; If the detection or
+            # decoding fails, fall back to `self.text` (using chardet to make
+            # a best guess).
+            encoding = guess_json_utf(self.content)
+            if encoding is not None:
+                try:
+                    return complexjson.loads(
+                        self.content.decode(encoding), **kwargs
+                    )
+                except UnicodeDecodeError:
+                    # Wrong UTF codec detected; usually because it's not UTF-8
+                    # but some other 8-bit codec.  This is an RFC violation,
+                    # and the server didn't bother to tell us what codec *was*
+                    # used.
+                    pass
+        return complexjson.loads(self.text, **kwargs)
+
+    @property
+    def links(self):
+        """Returns the parsed header links of the response, if any."""
+
+        header = self.headers.get('link')
+
+        # l = MultiDict()
+        l = {}
+
+        if header:
+            links = parse_header_links(header)
+
+            for link in links:
+                key = link.get('rel') or link.get('url')
+                l[key] = link
+
+        return l
+
+    def raise_for_status(self):
+        """Raises stored :class:`HTTPError`, if one occurred."""
+
+        http_error_msg = ''
+        if isinstance(self.reason, bytes):
+            reason = self.reason.decode('utf-8', 'ignore')
+        else:
+            reason = self.reason
+
+        if 400 <= self.status_code < 500:
+            http_error_msg = u'%s Client Error: %s for url: %s' % (self.status_code, reason, self.url)
+
+        elif 500 <= self.status_code < 600:
+            http_error_msg = u'%s Server Error: %s for url: %s' % (self.status_code, reason, self.url)
+
+        if http_error_msg:
+            raise HTTPError(http_error_msg, response=self)
+
+    def close(self):
+        """Releases the connection back to the pool. Once this method has been
+        called the underlying ``raw`` object must not be accessed again.
+
+        *Note: Should not normally need to be called explicitly.*
+        """
+        if not self._content_consumed:
+            self.raw.close()
+
+        return self.raw.release_conn()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py
new file mode 100644
index 0000000..971c2ad
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py
@@ -0,0 +1,36 @@
+'''
+Debian and other distributions "unbundle" requests' vendored dependencies, and
+rewrite all imports to use the global versions of ``urllib3`` and ``chardet``.
+The problem with this is that not only requests itself imports those
+dependencies, but third-party code outside of the distros' control too.
+
+In reaction to these problems, the distro maintainers replaced
+``requests.packages`` with a magical "stub module" that imports the correct
+modules. The implementations were varying in quality and all had severe
+problems. For example, a symlink (or hardlink) that links the correct modules
+into place introduces problems regarding object identity, since you now have
+two modules in `sys.modules` with the same API, but different identities::
+
+    requests.packages.urllib3 is not urllib3
+
+With version ``2.5.2``, requests started to maintain its own stub, so that
+distro-specific breakage would be reduced to a minimum, even though the whole
+issue is not requests' fault in the first place. See
+https://github.com/kennethreitz/requests/pull/2375 for the corresponding pull
+request.
+'''
+
+from __future__ import absolute_import
+import sys
+
+try:
+    from . import urllib3
+except ImportError:
+    import urllib3
+    sys.modules['%s.urllib3' % __name__] = urllib3
+
+try:
+    from . import chardet
+except ImportError:
+    import chardet
+    sys.modules['%s.chardet' % __name__] = chardet
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..67560b8
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py
new file mode 100644
index 0000000..82c2a48
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py
@@ -0,0 +1,32 @@
+######################## BEGIN LICENSE BLOCK ########################
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+__version__ = "2.3.0"
+from sys import version_info
+
+
+def detect(aBuf):
+    if ((version_info < (3, 0) and isinstance(aBuf, unicode)) or
+            (version_info >= (3, 0) and not isinstance(aBuf, bytes))):
+        raise ValueError('Expected a bytes object, not a unicode object')
+
+    from . import universaldetector
+    u = universaldetector.UniversalDetector()
+    u.reset()
+    u.feed(aBuf)
+    u.close()
+    return u.result
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--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5freq.py
@@ -0,0 +1,925 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Big5 frequency table
+# by Taiwan's Mandarin Promotion Council
+# <http://www.edu.tw:81/mandr/>
+#
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Ideal Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+BIG5_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+#Char to FreqOrder table
+BIG5_TABLE_SIZE = 5376
+
+Big5CharToFreqOrder = (
+   1,1801,1506, 255,1431, 198,   9,  82,   6,5008, 177, 202,3681,1256,2821, 110, #   16
+3814,  33,3274, 261,  76,  44,2114,  16,2946,2187,1176, 659,3971,  26,3451,2653, #   32
+1198,3972,3350,4202, 410,2215, 302, 590, 361,1964,   8, 204,  58,4510,5009,1932, #   48
+  63,5010,5011, 317,1614,  75, 222, 159,4203,2417,1480,5012,3555,3091, 224,2822, #   64
+3682,   3,  10,3973,1471,  29,2787,1135,2866,1940, 873, 130,3275,1123, 312,5013, #   80
+4511,2052, 507, 252, 682,5014, 142,1915, 124, 206,2947,  34,3556,3204,  64, 604, #   96
+5015,2501,1977,1978, 155,1991, 645, 641,1606,5016,3452, 337,  72, 406,5017,  80, #  112
+ 630, 238,3205,1509, 263, 939,1092,2654, 756,1440,1094,3453, 449,  69,2987, 591, #  128
+ 179,2096, 471, 115,2035,1844,  60,  50,2988, 134, 806,1869, 734,2036,3454, 180, #  144
+ 995,1607, 156, 537,2907, 688,5018, 319,1305, 779,2145, 514,2379, 298,4512, 359, #  160
+2502,  90,2716,1338, 663,  11, 906,1099,2553,  20,2441, 182, 532,1716,5019, 732, #  176
+1376,4204,1311,1420,3206,  25,2317,1056, 113, 399, 382,1950, 242,3455,2474, 529, #  192
+3276, 475,1447,3683,5020, 117,  21, 656, 810,1297,2300,2334,3557,5021, 126,4205, #  208
+ 706, 456, 150, 613,4513,  71,1118,2037,4206, 145,3092,  85, 835, 486,2115,1246, #  224
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,5022,2128,2359, 347,3815, 221, #  240
+3558,3135,5023,1956,1153,4207,  83, 296,1199,3093, 192, 624,  93,5024, 822,1898, #  256
+2823,3136, 795,2065, 991,1554,1542,1592,  27,  43,2867, 859, 139,1456, 860,4514, #  272
+ 437, 712,3974, 164,2397,3137, 695, 211,3037,2097, 195,3975,1608,3559,3560,3684, #  288
+3976, 234, 811,2989,2098,3977,2233,1441,3561,1615,2380, 668,2077,1638, 305, 228, #  304
+1664,4515, 467, 415,5025, 262,2099,1593, 239, 108, 300, 200,1033, 512,1247,2078, #  320
+5026,5027,2176,3207,3685,2682, 593, 845,1062,3277,  88,1723,2038,3978,1951, 212, #  336
+ 266, 152, 149, 468,1899,4208,4516,  77, 187,5028,3038,  37,   5,2990,5029,3979, #  352
+5030,5031,  39,2524,4517,2908,3208,2079,  55, 148,  74,4518, 545, 483,1474,1029, #  368
+1665, 217,1870,1531,3138,1104,2655,4209,  24, 172,3562, 900,3980,3563,3564,4519, #  384
+  32,1408,2824,1312, 329, 487,2360,2251,2717, 784,2683,   4,3039,3351,1427,1789, #  400
+ 188, 109, 499,5032,3686,1717,1790, 888,1217,3040,4520,5033,3565,5034,3352,1520, #  416
+3687,3981, 196,1034, 775,5035,5036, 929,1816, 249, 439,  38,5037,1063,5038, 794, #  432
+3982,1435,2301,  46, 178,3278,2066,5039,2381,5040, 214,1709,4521, 804,  35, 707, #  448
+ 324,3688,1601,2554, 140, 459,4210,5041,5042,1365, 839, 272, 978,2262,2580,3456, #  464
+2129,1363,3689,1423, 697, 100,3094,  48,  70,1231, 495,3139,2196,5043,1294,5044, #  480
+2080, 462, 586,1042,3279, 853, 256, 988, 185,2382,3457,1698, 434,1084,5045,3458, #  496
+ 314,2625,2788,4522,2335,2336, 569,2285, 637,1817,2525, 757,1162,1879,1616,3459, #  512
+ 287,1577,2116, 768,4523,1671,2868,3566,2526,1321,3816, 909,2418,5046,4211, 933, #  528
+3817,4212,2053,2361,1222,4524, 765,2419,1322, 786,4525,5047,1920,1462,1677,2909, #  544
+1699,5048,4526,1424,2442,3140,3690,2600,3353,1775,1941,3460,3983,4213, 309,1369, #  560
+1130,2825, 364,2234,1653,1299,3984,3567,3985,3986,2656, 525,1085,3041, 902,2001, #  576
+1475, 964,4527, 421,1845,1415,1057,2286, 940,1364,3141, 376,4528,4529,1381,   7, #  592
+2527, 983,2383, 336,1710,2684,1846, 321,3461, 559,1131,3042,2752,1809,1132,1313, #  608
+ 265,1481,1858,5049, 352,1203,2826,3280, 167,1089, 420,2827, 776, 792,1724,3568, #  624
+4214,2443,3281,5050,4215,5051, 446, 229, 333,2753, 901,3818,1200,1557,4530,2657, #  640
+1921, 395,2754,2685,3819,4216,1836, 125, 916,3209,2626,4531,5052,5053,3820,5054, #  656
+5055,5056,4532,3142,3691,1133,2555,1757,3462,1510,2318,1409,3569,5057,2146, 438, #  672
+2601,2910,2384,3354,1068, 958,3043, 461, 311,2869,2686,4217,1916,3210,4218,1979, #  688
+ 383, 750,2755,2627,4219, 274, 539, 385,1278,1442,5058,1154,1965, 384, 561, 210, #  704
+  98,1295,2556,3570,5059,1711,2420,1482,3463,3987,2911,1257, 129,5060,3821, 642, #  720
+ 523,2789,2790,2658,5061, 141,2235,1333,  68, 176, 441, 876, 907,4220, 603,2602, #  736
+ 710, 171,3464, 404, 549,  18,3143,2398,1410,3692,1666,5062,3571,4533,2912,4534, #  752
+5063,2991, 368,5064, 146, 366,  99, 871,3693,1543, 748, 807,1586,1185,  22,2263, #  768
+ 379,3822,3211,5065,3212, 505,1942,2628,1992,1382,2319,5066, 380,2362, 218, 702, #  784
+1818,1248,3465,3044,3572,3355,3282,5067,2992,3694, 930,3283,3823,5068,  59,5069, #  800
+ 585, 601,4221, 497,3466,1112,1314,4535,1802,5070,1223,1472,2177,5071, 749,1837, #  816
+ 690,1900,3824,1773,3988,1476, 429,1043,1791,2236,2117, 917,4222, 447,1086,1629, #  832
+5072, 556,5073,5074,2021,1654, 844,1090, 105, 550, 966,1758,2828,1008,1783, 686, #  848
+1095,5075,2287, 793,1602,5076,3573,2603,4536,4223,2948,2302,4537,3825, 980,2503, #  864
+ 544, 353, 527,4538, 908,2687,2913,5077, 381,2629,1943,1348,5078,1341,1252, 560, #  880
+3095,5079,3467,2870,5080,2054, 973, 886,2081, 143,4539,5081,5082, 157,3989, 496, #  896
+4224,  57, 840, 540,2039,4540,4541,3468,2118,1445, 970,2264,1748,1966,2082,4225, #  912
+3144,1234,1776,3284,2829,3695, 773,1206,2130,1066,2040,1326,3990,1738,1725,4226, #  928
+ 279,3145,  51,1544,2604, 423,1578,2131,2067, 173,4542,1880,5083,5084,1583, 264, #  944
+ 610,3696,4543,2444, 280, 154,5085,5086,5087,1739, 338,1282,3096, 693,2871,1411, #  960
+1074,3826,2445,5088,4544,5089,5090,1240, 952,2399,5091,2914,1538,2688, 685,1483, #  976
+4227,2475,1436, 953,4228,2055,4545, 671,2400,  79,4229,2446,3285, 608, 567,2689, #  992
+3469,4230,4231,1691, 393,1261,1792,2401,5092,4546,5093,5094,5095,5096,1383,1672, # 1008
+3827,3213,1464, 522,1119, 661,1150, 216, 675,4547,3991,1432,3574, 609,4548,2690, # 1024
+2402,5097,5098,5099,4232,3045,   0,5100,2476, 315, 231,2447, 301,3356,4549,2385, # 1040
+5101, 233,4233,3697,1819,4550,4551,5102,  96,1777,1315,2083,5103, 257,5104,1810, # 1056
+3698,2718,1139,1820,4234,2022,1124,2164,2791,1778,2659,5105,3097, 363,1655,3214, # 1072
+5106,2993,5107,5108,5109,3992,1567,3993, 718, 103,3215, 849,1443, 341,3357,2949, # 1088
+1484,5110,1712, 127,  67, 339,4235,2403, 679,1412, 821,5111,5112, 834, 738, 351, # 1104
+2994,2147, 846, 235,1497,1881, 418,1993,3828,2719, 186,1100,2148,2756,3575,1545, # 1120
+1355,2950,2872,1377, 583,3994,4236,2581,2995,5113,1298,3699,1078,2557,3700,2363, # 1136
+  78,3829,3830, 267,1289,2100,2002,1594,4237, 348, 369,1274,2197,2178,1838,4552, # 1152
+1821,2830,3701,2757,2288,2003,4553,2951,2758, 144,3358, 882,4554,3995,2759,3470, # 1168
+4555,2915,5114,4238,1726, 320,5115,3996,3046, 788,2996,5116,2831,1774,1327,2873, # 1184
+3997,2832,5117,1306,4556,2004,1700,3831,3576,2364,2660, 787,2023, 506, 824,3702, # 1200
+ 534, 323,4557,1044,3359,2024,1901, 946,3471,5118,1779,1500,1678,5119,1882,4558, # 1216
+ 165, 243,4559,3703,2528, 123, 683,4239, 764,4560,  36,3998,1793, 589,2916, 816, # 1232
+ 626,1667,3047,2237,1639,1555,1622,3832,3999,5120,4000,2874,1370,1228,1933, 891, # 1248
+2084,2917, 304,4240,5121, 292,2997,2720,3577, 691,2101,4241,1115,4561, 118, 662, # 1264
+5122, 611,1156, 854,2386,1316,2875,   2, 386, 515,2918,5123,5124,3286, 868,2238, # 1280
+1486, 855,2661, 785,2216,3048,5125,1040,3216,3578,5126,3146, 448,5127,1525,5128, # 1296
+2165,4562,5129,3833,5130,4242,2833,3579,3147, 503, 818,4001,3148,1568, 814, 676, # 1312
+1444, 306,1749,5131,3834,1416,1030, 197,1428, 805,2834,1501,4563,5132,5133,5134, # 1328
+1994,5135,4564,5136,5137,2198,  13,2792,3704,2998,3149,1229,1917,5138,3835,2132, # 1344
+5139,4243,4565,2404,3580,5140,2217,1511,1727,1120,5141,5142, 646,3836,2448, 307, # 1360
+5143,5144,1595,3217,5145,5146,5147,3705,1113,1356,4002,1465,2529,2530,5148, 519, # 1376
+5149, 128,2133,  92,2289,1980,5150,4003,1512, 342,3150,2199,5151,2793,2218,1981, # 1392
+3360,4244, 290,1656,1317, 789, 827,2365,5152,3837,4566, 562, 581,4004,5153, 401, # 1408
+4567,2252,  94,4568,5154,1399,2794,5155,1463,2025,4569,3218,1944,5156, 828,1105, # 1424
+4245,1262,1394,5157,4246, 605,4570,5158,1784,2876,5159,2835, 819,2102, 578,2200, # 1440
+2952,5160,1502, 436,3287,4247,3288,2836,4005,2919,3472,3473,5161,2721,2320,5162, # 1456
+5163,2337,2068,  23,4571, 193, 826,3838,2103, 699,1630,4248,3098, 390,1794,1064, # 1472
+3581,5164,1579,3099,3100,1400,5165,4249,1839,1640,2877,5166,4572,4573, 137,4250, # 1488
+ 598,3101,1967, 780, 104, 974,2953,5167, 278, 899, 253, 402, 572, 504, 493,1339, # 1504
+5168,4006,1275,4574,2582,2558,5169,3706,3049,3102,2253, 565,1334,2722, 863,  41, # 1520
+5170,5171,4575,5172,1657,2338,  19, 463,2760,4251, 606,5173,2999,3289,1087,2085, # 1536
+1323,2662,3000,5174,1631,1623,1750,4252,2691,5175,2878, 791,2723,2663,2339, 232, # 1552
+2421,5176,3001,1498,5177,2664,2630, 755,1366,3707,3290,3151,2026,1609, 119,1918, # 1568
+3474, 862,1026,4253,5178,4007,3839,4576,4008,4577,2265,1952,2477,5179,1125, 817, # 1584
+4254,4255,4009,1513,1766,2041,1487,4256,3050,3291,2837,3840,3152,5180,5181,1507, # 1600
+5182,2692, 733,  40,1632,1106,2879, 345,4257, 841,2531, 230,4578,3002,1847,3292, # 1616
+3475,5183,1263, 986,3476,5184, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562, # 1632
+4010,4011,2954, 967,2761,2665,1349, 592,2134,1692,3361,3003,1995,4258,1679,4012, # 1648
+1902,2188,5185, 739,3708,2724,1296,1290,5186,4259,2201,2202,1922,1563,2605,2559, # 1664
+1871,2762,3004,5187, 435,5188, 343,1108, 596,  17,1751,4579,2239,3477,3709,5189, # 1680
+4580, 294,3582,2955,1693, 477, 979, 281,2042,3583, 643,2043,3710,2631,2795,2266, # 1696
+1031,2340,2135,2303,3584,4581, 367,1249,2560,5190,3585,5191,4582,1283,3362,2005, # 1712
+ 240,1762,3363,4583,4584, 836,1069,3153, 474,5192,2149,2532, 268,3586,5193,3219, # 1728
+1521,1284,5194,1658,1546,4260,5195,3587,3588,5196,4261,3364,2693,1685,4262, 961, # 1744
+1673,2632, 190,2006,2203,3841,4585,4586,5197, 570,2504,3711,1490,5198,4587,2633, # 1760
+3293,1957,4588, 584,1514, 396,1045,1945,5199,4589,1968,2449,5200,5201,4590,4013, # 1776
+ 619,5202,3154,3294, 215,2007,2796,2561,3220,4591,3221,4592, 763,4263,3842,4593, # 1792
+5203,5204,1958,1767,2956,3365,3712,1174, 452,1477,4594,3366,3155,5205,2838,1253, # 1808
+2387,2189,1091,2290,4264, 492,5206, 638,1169,1825,2136,1752,4014, 648, 926,1021, # 1824
+1324,4595, 520,4596, 997, 847,1007, 892,4597,3843,2267,1872,3713,2405,1785,4598, # 1840
+1953,2957,3103,3222,1728,4265,2044,3714,4599,2008,1701,3156,1551,  30,2268,4266, # 1856
+5207,2027,4600,3589,5208, 501,5209,4267, 594,3478,2166,1822,3590,3479,3591,3223, # 1872
+ 829,2839,4268,5210,1680,3157,1225,4269,5211,3295,4601,4270,3158,2341,5212,4602, # 1888
+4271,5213,4015,4016,5214,1848,2388,2606,3367,5215,4603, 374,4017, 652,4272,4273, # 1904
+ 375,1140, 798,5216,5217,5218,2366,4604,2269, 546,1659, 138,3051,2450,4605,5219, # 1920
+2254, 612,1849, 910, 796,3844,1740,1371, 825,3845,3846,5220,2920,2562,5221, 692, # 1936
+ 444,3052,2634, 801,4606,4274,5222,1491, 244,1053,3053,4275,4276, 340,5223,4018, # 1952
+1041,3005, 293,1168,  87,1357,5224,1539, 959,5225,2240, 721, 694,4277,3847, 219, # 1968
+1478, 644,1417,3368,2666,1413,1401,1335,1389,4019,5226,5227,3006,2367,3159,1826, # 1984
+ 730,1515, 184,2840,  66,4607,5228,1660,2958, 246,3369, 378,1457, 226,3480, 975, # 2000
+4020,2959,1264,3592, 674, 696,5229, 163,5230,1141,2422,2167, 713,3593,3370,4608, # 2016
+4021,5231,5232,1186,  15,5233,1079,1070,5234,1522,3224,3594, 276,1050,2725, 758, # 2032
+1126, 653,2960,3296,5235,2342, 889,3595,4022,3104,3007, 903,1250,4609,4023,3481, # 2048
+3596,1342,1681,1718, 766,3297, 286,  89,2961,3715,5236,1713,5237,2607,3371,3008, # 2064
+5238,2962,2219,3225,2880,5239,4610,2505,2533, 181, 387,1075,4024, 731,2190,3372, # 2080
+5240,3298, 310, 313,3482,2304, 770,4278,  54,3054, 189,4611,3105,3848,4025,5241, # 2096
+1230,1617,1850, 355,3597,4279,4612,3373, 111,4280,3716,1350,3160,3483,3055,4281, # 2112
+2150,3299,3598,5242,2797,4026,4027,3009, 722,2009,5243,1071, 247,1207,2343,2478, # 2128
+1378,4613,2010, 864,1437,1214,4614, 373,3849,1142,2220, 667,4615, 442,2763,2563, # 2144
+3850,4028,1969,4282,3300,1840, 837, 170,1107, 934,1336,1883,5244,5245,2119,4283, # 2160
+2841, 743,1569,5246,4616,4284, 582,2389,1418,3484,5247,1803,5248, 357,1395,1729, # 2176
+3717,3301,2423,1564,2241,5249,3106,3851,1633,4617,1114,2086,4285,1532,5250, 482, # 2192
+2451,4618,5251,5252,1492, 833,1466,5253,2726,3599,1641,2842,5254,1526,1272,3718, # 2208
+4286,1686,1795, 416,2564,1903,1954,1804,5255,3852,2798,3853,1159,2321,5256,2881, # 2224
+4619,1610,1584,3056,2424,2764, 443,3302,1163,3161,5257,5258,4029,5259,4287,2506, # 2240
+3057,4620,4030,3162,2104,1647,3600,2011,1873,4288,5260,4289, 431,3485,5261, 250, # 2256
+  97,  81,4290,5262,1648,1851,1558, 160, 848,5263, 866, 740,1694,5264,2204,2843, # 2272
+3226,4291,4621,3719,1687, 950,2479, 426, 469,3227,3720,3721,4031,5265,5266,1188, # 2288
+ 424,1996, 861,3601,4292,3854,2205,2694, 168,1235,3602,4293,5267,2087,1674,4622, # 2304
+3374,3303, 220,2565,1009,5268,3855, 670,3010, 332,1208, 717,5269,5270,3603,2452, # 2320
+4032,3375,5271, 513,5272,1209,2882,3376,3163,4623,1080,5273,5274,5275,5276,2534, # 2336
+3722,3604, 815,1587,4033,4034,5277,3605,3486,3856,1254,4624,1328,3058,1390,4035, # 2352
+1741,4036,3857,4037,5278, 236,3858,2453,3304,5279,5280,3723,3859,1273,3860,4625, # 2368
+5281, 308,5282,4626, 245,4627,1852,2480,1307,2583, 430, 715,2137,2454,5283, 270, # 2384
+ 199,2883,4038,5284,3606,2727,1753, 761,1754, 725,1661,1841,4628,3487,3724,5285, # 2400
+5286, 587,  14,3305, 227,2608, 326, 480,2270, 943,2765,3607, 291, 650,1884,5287, # 2416
+1702,1226, 102,1547,  62,3488, 904,4629,3489,1164,4294,5288,5289,1224,1548,2766, # 2432
+ 391, 498,1493,5290,1386,1419,5291,2056,1177,4630, 813, 880,1081,2368, 566,1145, # 2448
+4631,2291,1001,1035,2566,2609,2242, 394,1286,5292,5293,2069,5294,  86,1494,1730, # 2464
+4039, 491,1588, 745, 897,2963, 843,3377,4040,2767,2884,3306,1768, 998,2221,2070, # 2480
+ 397,1827,1195,1970,3725,3011,3378, 284,5295,3861,2507,2138,2120,1904,5296,4041, # 2496
+2151,4042,4295,1036,3490,1905, 114,2567,4296, 209,1527,5297,5298,2964,2844,2635, # 2512
+2390,2728,3164, 812,2568,5299,3307,5300,1559, 737,1885,3726,1210, 885,  28,2695, # 2528
+3608,3862,5301,4297,1004,1780,4632,5302, 346,1982,2222,2696,4633,3863,1742, 797, # 2544
+1642,4043,1934,1072,1384,2152, 896,4044,3308,3727,3228,2885,3609,5303,2569,1959, # 2560
+4634,2455,1786,5304,5305,5306,4045,4298,1005,1308,3728,4299,2729,4635,4636,1528, # 2576
+2610, 161,1178,4300,1983, 987,4637,1101,4301, 631,4046,1157,3229,2425,1343,1241, # 2592
+1016,2243,2570, 372, 877,2344,2508,1160, 555,1935, 911,4047,5307, 466,1170, 169, # 2608
+1051,2921,2697,3729,2481,3012,1182,2012,2571,1251,2636,5308, 992,2345,3491,1540, # 2624
+2730,1201,2071,2406,1997,2482,5309,4638, 528,1923,2191,1503,1874,1570,2369,3379, # 2640
+3309,5310, 557,1073,5311,1828,3492,2088,2271,3165,3059,3107, 767,3108,2799,4639, # 2656
+1006,4302,4640,2346,1267,2179,3730,3230, 778,4048,3231,2731,1597,2667,5312,4641, # 2672
+5313,3493,5314,5315,5316,3310,2698,1433,3311, 131,  95,1504,4049, 723,4303,3166, # 2688
+1842,3610,2768,2192,4050,2028,2105,3731,5317,3013,4051,1218,5318,3380,3232,4052, # 2704
+4304,2584, 248,1634,3864, 912,5319,2845,3732,3060,3865, 654,  53,5320,3014,5321, # 2720
+1688,4642, 777,3494,1032,4053,1425,5322, 191, 820,2121,2846, 971,4643, 931,3233, # 2736
+ 135, 664, 783,3866,1998, 772,2922,1936,4054,3867,4644,2923,3234, 282,2732, 640, # 2752
+1372,3495,1127, 922, 325,3381,5323,5324, 711,2045,5325,5326,4055,2223,2800,1937, # 2768
+4056,3382,2224,2255,3868,2305,5327,4645,3869,1258,3312,4057,3235,2139,2965,4058, # 2784
+4059,5328,2225, 258,3236,4646, 101,1227,5329,3313,1755,5330,1391,3314,5331,2924, # 2800
+2057, 893,5332,5333,5334,1402,4305,2347,5335,5336,3237,3611,5337,5338, 878,1325, # 2816
+1781,2801,4647, 259,1385,2585, 744,1183,2272,4648,5339,4060,2509,5340, 684,1024, # 2832
+4306,5341, 472,3612,3496,1165,3315,4061,4062, 322,2153, 881, 455,1695,1152,1340, # 2848
+ 660, 554,2154,4649,1058,4650,4307, 830,1065,3383,4063,4651,1924,5342,1703,1919, # 2864
+5343, 932,2273, 122,5344,4652, 947, 677,5345,3870,2637, 297,1906,1925,2274,4653, # 2880
+2322,3316,5346,5347,4308,5348,4309,  84,4310, 112, 989,5349, 547,1059,4064, 701, # 2896
+3613,1019,5350,4311,5351,3497, 942, 639, 457,2306,2456, 993,2966, 407, 851, 494, # 2912
+4654,3384, 927,5352,1237,5353,2426,3385, 573,4312, 680, 921,2925,1279,1875, 285, # 2928
+ 790,1448,1984, 719,2168,5354,5355,4655,4065,4066,1649,5356,1541, 563,5357,1077, # 2944
+5358,3386,3061,3498, 511,3015,4067,4068,3733,4069,1268,2572,3387,3238,4656,4657, # 2960
+5359, 535,1048,1276,1189,2926,2029,3167,1438,1373,2847,2967,1134,2013,5360,4313, # 2976
+1238,2586,3109,1259,5361, 700,5362,2968,3168,3734,4314,5363,4315,1146,1876,1907, # 2992
+4658,2611,4070, 781,2427, 132,1589, 203, 147, 273,2802,2407, 898,1787,2155,4071, # 3008
+4072,5364,3871,2803,5365,5366,4659,4660,5367,3239,5368,1635,3872, 965,5369,1805, # 3024
+2699,1516,3614,1121,1082,1329,3317,4073,1449,3873,  65,1128,2848,2927,2769,1590, # 3040
+3874,5370,5371,  12,2668,  45, 976,2587,3169,4661, 517,2535,1013,1037,3240,5372, # 3056
+3875,2849,5373,3876,5374,3499,5375,2612, 614,1999,2323,3877,3110,2733,2638,5376, # 3072
+2588,4316, 599,1269,5377,1811,3735,5378,2700,3111, 759,1060, 489,1806,3388,3318, # 3088
+1358,5379,5380,2391,1387,1215,2639,2256, 490,5381,5382,4317,1759,2392,2348,5383, # 3104
+4662,3878,1908,4074,2640,1807,3241,4663,3500,3319,2770,2349, 874,5384,5385,3501, # 3120
+3736,1859,  91,2928,3737,3062,3879,4664,5386,3170,4075,2669,5387,3502,1202,1403, # 3136
+3880,2969,2536,1517,2510,4665,3503,2511,5388,4666,5389,2701,1886,1495,1731,4076, # 3152
+2370,4667,5390,2030,5391,5392,4077,2702,1216, 237,2589,4318,2324,4078,3881,4668, # 3168
+4669,2703,3615,3504, 445,4670,5393,5394,5395,5396,2771,  61,4079,3738,1823,4080, # 3184
+5397, 687,2046, 935, 925, 405,2670, 703,1096,1860,2734,4671,4081,1877,1367,2704, # 3200
+3389, 918,2106,1782,2483, 334,3320,1611,1093,4672, 564,3171,3505,3739,3390, 945, # 3216
+2641,2058,4673,5398,1926, 872,4319,5399,3506,2705,3112, 349,4320,3740,4082,4674, # 3232
+3882,4321,3741,2156,4083,4675,4676,4322,4677,2408,2047, 782,4084, 400, 251,4323, # 3248
+1624,5400,5401, 277,3742, 299,1265, 476,1191,3883,2122,4324,4325,1109, 205,5402, # 3264
+2590,1000,2157,3616,1861,5403,5404,5405,4678,5406,4679,2573, 107,2484,2158,4085, # 3280
+3507,3172,5407,1533, 541,1301, 158, 753,4326,2886,3617,5408,1696, 370,1088,4327, # 3296
+4680,3618, 579, 327, 440, 162,2244, 269,1938,1374,3508, 968,3063,  56,1396,3113, # 3312
+2107,3321,3391,5409,1927,2159,4681,3016,5410,3619,5411,5412,3743,4682,2485,5413, # 3328
+2804,5414,1650,4683,5415,2613,5416,5417,4086,2671,3392,1149,3393,4087,3884,4088, # 3344
+5418,1076,  49,5419, 951,3242,3322,3323, 450,2850, 920,5420,1812,2805,2371,4328, # 3360
+1909,1138,2372,3885,3509,5421,3243,4684,1910,1147,1518,2428,4685,3886,5422,4686, # 3376
+2393,2614, 260,1796,3244,5423,5424,3887,3324, 708,5425,3620,1704,5426,3621,1351, # 3392
+1618,3394,3017,1887, 944,4329,3395,4330,3064,3396,4331,5427,3744, 422, 413,1714, # 3408
+3325, 500,2059,2350,4332,2486,5428,1344,1911, 954,5429,1668,5430,5431,4089,2409, # 3424
+4333,3622,3888,4334,5432,2307,1318,2512,3114, 133,3115,2887,4687, 629,  31,2851, # 3440
+2706,3889,4688, 850, 949,4689,4090,2970,1732,2089,4335,1496,1853,5433,4091, 620, # 3456
+3245, 981,1242,3745,3397,1619,3746,1643,3326,2140,2457,1971,1719,3510,2169,5434, # 3472
+3246,5435,5436,3398,1829,5437,1277,4690,1565,2048,5438,1636,3623,3116,5439, 869, # 3488
+2852, 655,3890,3891,3117,4092,3018,3892,1310,3624,4691,5440,5441,5442,1733, 558, # 3504
+4692,3747, 335,1549,3065,1756,4336,3748,1946,3511,1830,1291,1192, 470,2735,2108, # 3520
+2806, 913,1054,4093,5443,1027,5444,3066,4094,4693, 982,2672,3399,3173,3512,3247, # 3536
+3248,1947,2807,5445, 571,4694,5446,1831,5447,3625,2591,1523,2429,5448,2090, 984, # 3552
+4695,3749,1960,5449,3750, 852, 923,2808,3513,3751, 969,1519, 999,2049,2325,1705, # 3568
+5450,3118, 615,1662, 151, 597,4095,2410,2326,1049, 275,4696,3752,4337, 568,3753, # 3584
+3626,2487,4338,3754,5451,2430,2275, 409,3249,5452,1566,2888,3514,1002, 769,2853, # 3600
+ 194,2091,3174,3755,2226,3327,4339, 628,1505,5453,5454,1763,2180,3019,4096, 521, # 3616
+1161,2592,1788,2206,2411,4697,4097,1625,4340,4341, 412,  42,3119, 464,5455,2642, # 3632
+4698,3400,1760,1571,2889,3515,2537,1219,2207,3893,2643,2141,2373,4699,4700,3328, # 3648
+1651,3401,3627,5456,5457,3628,2488,3516,5458,3756,5459,5460,2276,2092, 460,5461, # 3664
+4701,5462,3020, 962, 588,3629, 289,3250,2644,1116,  52,5463,3067,1797,5464,5465, # 3680
+5466,1467,5467,1598,1143,3757,4342,1985,1734,1067,4702,1280,3402, 465,4703,1572, # 3696
+ 510,5468,1928,2245,1813,1644,3630,5469,4704,3758,5470,5471,2673,1573,1534,5472, # 3712
+5473, 536,1808,1761,3517,3894,3175,2645,5474,5475,5476,4705,3518,2929,1912,2809, # 3728
+5477,3329,1122, 377,3251,5478, 360,5479,5480,4343,1529, 551,5481,2060,3759,1769, # 3744
+2431,5482,2930,4344,3330,3120,2327,2109,2031,4706,1404, 136,1468,1479, 672,1171, # 3760
+3252,2308, 271,3176,5483,2772,5484,2050, 678,2736, 865,1948,4707,5485,2014,4098, # 3776
+2971,5486,2737,2227,1397,3068,3760,4708,4709,1735,2931,3403,3631,5487,3895, 509, # 3792
+2854,2458,2890,3896,5488,5489,3177,3178,4710,4345,2538,4711,2309,1166,1010, 552, # 3808
+ 681,1888,5490,5491,2972,2973,4099,1287,1596,1862,3179, 358, 453, 736, 175, 478, # 3824
+1117, 905,1167,1097,5492,1854,1530,5493,1706,5494,2181,3519,2292,3761,3520,3632, # 3840
+4346,2093,4347,5495,3404,1193,2489,4348,1458,2193,2208,1863,1889,1421,3331,2932, # 3856
+3069,2182,3521, 595,2123,5496,4100,5497,5498,4349,1707,2646, 223,3762,1359, 751, # 3872
+3121, 183,3522,5499,2810,3021, 419,2374, 633, 704,3897,2394, 241,5500,5501,5502, # 3888
+ 838,3022,3763,2277,2773,2459,3898,1939,2051,4101,1309,3122,2246,1181,5503,1136, # 3904
+2209,3899,2375,1446,4350,2310,4712,5504,5505,4351,1055,2615, 484,3764,5506,4102, # 3920
+ 625,4352,2278,3405,1499,4353,4103,5507,4104,4354,3253,2279,2280,3523,5508,5509, # 3936
+2774, 808,2616,3765,3406,4105,4355,3123,2539, 526,3407,3900,4356, 955,5510,1620, # 3952
+4357,2647,2432,5511,1429,3766,1669,1832, 994, 928,5512,3633,1260,5513,5514,5515, # 3968
+1949,2293, 741,2933,1626,4358,2738,2460, 867,1184, 362,3408,1392,5516,5517,4106, # 3984
+4359,1770,1736,3254,2934,4713,4714,1929,2707,1459,1158,5518,3070,3409,2891,1292, # 4000
+1930,2513,2855,3767,1986,1187,2072,2015,2617,4360,5519,2574,2514,2170,3768,2490, # 4016
+3332,5520,3769,4715,5521,5522, 666,1003,3023,1022,3634,4361,5523,4716,1814,2257, # 4032
+ 574,3901,1603, 295,1535, 705,3902,4362, 283, 858, 417,5524,5525,3255,4717,4718, # 4048
+3071,1220,1890,1046,2281,2461,4107,1393,1599, 689,2575, 388,4363,5526,2491, 802, # 4064
+5527,2811,3903,2061,1405,2258,5528,4719,3904,2110,1052,1345,3256,1585,5529, 809, # 4080
+5530,5531,5532, 575,2739,3524, 956,1552,1469,1144,2328,5533,2329,1560,2462,3635, # 4096
+3257,4108, 616,2210,4364,3180,2183,2294,5534,1833,5535,3525,4720,5536,1319,3770, # 4112
+3771,1211,3636,1023,3258,1293,2812,5537,5538,5539,3905, 607,2311,3906, 762,2892, # 4128
+1439,4365,1360,4721,1485,3072,5540,4722,1038,4366,1450,2062,2648,4367,1379,4723, # 4144
+2593,5541,5542,4368,1352,1414,2330,2935,1172,5543,5544,3907,3908,4724,1798,1451, # 4160
+5545,5546,5547,5548,2936,4109,4110,2492,2351, 411,4111,4112,3637,3333,3124,4725, # 4176
+1561,2674,1452,4113,1375,5549,5550,  47,2974, 316,5551,1406,1591,2937,3181,5552, # 4192
+1025,2142,3125,3182, 354,2740, 884,2228,4369,2412, 508,3772, 726,3638, 996,2433, # 4208
+3639, 729,5553, 392,2194,1453,4114,4726,3773,5554,5555,2463,3640,2618,1675,2813, # 4224
+ 919,2352,2975,2353,1270,4727,4115,  73,5556,5557, 647,5558,3259,2856,2259,1550, # 4240
+1346,3024,5559,1332, 883,3526,5560,5561,5562,5563,3334,2775,5564,1212, 831,1347, # 4256
+4370,4728,2331,3909,1864,3073, 720,3910,4729,4730,3911,5565,4371,5566,5567,4731, # 4272
+5568,5569,1799,4732,3774,2619,4733,3641,1645,2376,4734,5570,2938, 669,2211,2675, # 4288
+2434,5571,2893,5572,5573,1028,3260,5574,4372,2413,5575,2260,1353,5576,5577,4735, # 4304
+3183, 518,5578,4116,5579,4373,1961,5580,2143,4374,5581,5582,3025,2354,2355,3912, # 4320
+ 516,1834,1454,4117,2708,4375,4736,2229,2620,1972,1129,3642,5583,2776,5584,2976, # 4336
+1422, 577,1470,3026,1524,3410,5585,5586, 432,4376,3074,3527,5587,2594,1455,2515, # 4352
+2230,1973,1175,5588,1020,2741,4118,3528,4737,5589,2742,5590,1743,1361,3075,3529, # 4368
+2649,4119,4377,4738,2295, 895, 924,4378,2171, 331,2247,3076, 166,1627,3077,1098, # 4384
+5591,1232,2894,2231,3411,4739, 657, 403,1196,2377, 542,3775,3412,1600,4379,3530, # 4400
+5592,4740,2777,3261, 576, 530,1362,4741,4742,2540,2676,3776,4120,5593, 842,3913, # 4416
+5594,2814,2032,1014,4121, 213,2709,3413, 665, 621,4380,5595,3777,2939,2435,5596, # 4432
+2436,3335,3643,3414,4743,4381,2541,4382,4744,3644,1682,4383,3531,1380,5597, 724, # 4448
+2282, 600,1670,5598,1337,1233,4745,3126,2248,5599,1621,4746,5600, 651,4384,5601, # 4464
+1612,4385,2621,5602,2857,5603,2743,2312,3078,5604, 716,2464,3079, 174,1255,2710, # 4480
+4122,3645, 548,1320,1398, 728,4123,1574,5605,1891,1197,3080,4124,5606,3081,3082, # 4496
+3778,3646,3779, 747,5607, 635,4386,4747,5608,5609,5610,4387,5611,5612,4748,5613, # 4512
+3415,4749,2437, 451,5614,3780,2542,2073,4388,2744,4389,4125,5615,1764,4750,5616, # 4528
+4390, 350,4751,2283,2395,2493,5617,4391,4126,2249,1434,4127, 488,4752, 458,4392, # 4544
+4128,3781, 771,1330,2396,3914,2576,3184,2160,2414,1553,2677,3185,4393,5618,2494, # 4560
+2895,2622,1720,2711,4394,3416,4753,5619,2543,4395,5620,3262,4396,2778,5621,2016, # 4576
+2745,5622,1155,1017,3782,3915,5623,3336,2313, 201,1865,4397,1430,5624,4129,5625, # 4592
+5626,5627,5628,5629,4398,1604,5630, 414,1866, 371,2595,4754,4755,3532,2017,3127, # 4608
+4756,1708, 960,4399, 887, 389,2172,1536,1663,1721,5631,2232,4130,2356,2940,1580, # 4624
+5632,5633,1744,4757,2544,4758,4759,5634,4760,5635,2074,5636,4761,3647,3417,2896, # 4640
+4400,5637,4401,2650,3418,2815, 673,2712,2465, 709,3533,4131,3648,4402,5638,1148, # 4656
+ 502, 634,5639,5640,1204,4762,3649,1575,4763,2623,3783,5641,3784,3128, 948,3263, # 4672
+ 121,1745,3916,1110,5642,4403,3083,2516,3027,4132,3785,1151,1771,3917,1488,4133, # 4688
+1987,5643,2438,3534,5644,5645,2094,5646,4404,3918,1213,1407,2816, 531,2746,2545, # 4704
+3264,1011,1537,4764,2779,4405,3129,1061,5647,3786,3787,1867,2897,5648,2018, 120, # 4720
+4406,4407,2063,3650,3265,2314,3919,2678,3419,1955,4765,4134,5649,3535,1047,2713, # 4736
+1266,5650,1368,4766,2858, 649,3420,3920,2546,2747,1102,2859,2679,5651,5652,2000, # 4752
+5653,1111,3651,2977,5654,2495,3921,3652,2817,1855,3421,3788,5655,5656,3422,2415, # 4768
+2898,3337,3266,3653,5657,2577,5658,3654,2818,4135,1460, 856,5659,3655,5660,2899, # 4784
+2978,5661,2900,3922,5662,4408, 632,2517, 875,3923,1697,3924,2296,5663,5664,4767, # 4800
+3028,1239, 580,4768,4409,5665, 914, 936,2075,1190,4136,1039,2124,5666,5667,5668, # 4816
+5669,3423,1473,5670,1354,4410,3925,4769,2173,3084,4137, 915,3338,4411,4412,3339, # 4832
+1605,1835,5671,2748, 398,3656,4413,3926,4138, 328,1913,2860,4139,3927,1331,4414, # 4848
+3029, 937,4415,5672,3657,4140,4141,3424,2161,4770,3425, 524, 742, 538,3085,1012, # 4864
+5673,5674,3928,2466,5675, 658,1103, 225,3929,5676,5677,4771,5678,4772,5679,3267, # 4880
+1243,5680,4142, 963,2250,4773,5681,2714,3658,3186,5682,5683,2596,2332,5684,4774, # 4896
+5685,5686,5687,3536, 957,3426,2547,2033,1931,2941,2467, 870,2019,3659,1746,2780, # 4912
+2781,2439,2468,5688,3930,5689,3789,3130,3790,3537,3427,3791,5690,1179,3086,5691, # 4928
+3187,2378,4416,3792,2548,3188,3131,2749,4143,5692,3428,1556,2549,2297, 977,2901, # 4944
+2034,4144,1205,3429,5693,1765,3430,3189,2125,1271, 714,1689,4775,3538,5694,2333, # 4960
+3931, 533,4417,3660,2184, 617,5695,2469,3340,3539,2315,5696,5697,3190,5698,5699, # 4976
+3932,1988, 618, 427,2651,3540,3431,5700,5701,1244,1690,5702,2819,4418,4776,5703, # 4992
+3541,4777,5704,2284,1576, 473,3661,4419,3432, 972,5705,3662,5706,3087,5707,5708, # 5008
+4778,4779,5709,3793,4145,4146,5710, 153,4780, 356,5711,1892,2902,4420,2144, 408, # 5024
+ 803,2357,5712,3933,5713,4421,1646,2578,2518,4781,4782,3934,5714,3935,4422,5715, # 5040
+2416,3433, 752,5716,5717,1962,3341,2979,5718, 746,3030,2470,4783,4423,3794, 698, # 5056
+4784,1893,4424,3663,2550,4785,3664,3936,5719,3191,3434,5720,1824,1302,4147,2715, # 5072
+3937,1974,4425,5721,4426,3192, 823,1303,1288,1236,2861,3542,4148,3435, 774,3938, # 5088
+5722,1581,4786,1304,2862,3939,4787,5723,2440,2162,1083,3268,4427,4149,4428, 344, # 5104
+1173, 288,2316, 454,1683,5724,5725,1461,4788,4150,2597,5726,5727,4789, 985, 894, # 5120
+5728,3436,3193,5729,1914,2942,3795,1989,5730,2111,1975,5731,4151,5732,2579,1194, # 5136
+ 425,5733,4790,3194,1245,3796,4429,5734,5735,2863,5736, 636,4791,1856,3940, 760, # 5152
+1800,5737,4430,2212,1508,4792,4152,1894,1684,2298,5738,5739,4793,4431,4432,2213, # 5168
+ 479,5740,5741, 832,5742,4153,2496,5743,2980,2497,3797, 990,3132, 627,1815,2652, # 5184
+4433,1582,4434,2126,2112,3543,4794,5744, 799,4435,3195,5745,4795,2113,1737,3031, # 5200
+1018, 543, 754,4436,3342,1676,4796,4797,4154,4798,1489,5746,3544,5747,2624,2903, # 5216
+4155,5748,5749,2981,5750,5751,5752,5753,3196,4799,4800,2185,1722,5754,3269,3270, # 5232
+1843,3665,1715, 481, 365,1976,1857,5755,5756,1963,2498,4801,5757,2127,3666,3271, # 5248
+ 433,1895,2064,2076,5758, 602,2750,5759,5760,5761,5762,5763,3032,1628,3437,5764, # 5264
+3197,4802,4156,2904,4803,2519,5765,2551,2782,5766,5767,5768,3343,4804,2905,5769, # 5280
+4805,5770,2864,4806,4807,1221,2982,4157,2520,5771,5772,5773,1868,1990,5774,5775, # 5296
+5776,1896,5777,5778,4808,1897,4158, 318,5779,2095,4159,4437,5780,5781, 485,5782, # 5312
+ 938,3941, 553,2680, 116,5783,3942,3667,5784,3545,2681,2783,3438,3344,2820,5785, # 5328
+3668,2943,4160,1747,2944,2983,5786,5787, 207,5788,4809,5789,4810,2521,5790,3033, # 5344
+ 890,3669,3943,5791,1878,3798,3439,5792,2186,2358,3440,1652,5793,5794,5795, 941, # 5360
+2299, 208,3546,4161,2020, 330,4438,3944,2906,2499,3799,4439,4811,5796,5797,5798, # 5376  #last 512
+#Everything below is of no interest for detection purpose
+2522,1613,4812,5799,3345,3945,2523,5800,4162,5801,1637,4163,2471,4813,3946,5802, # 5392
+2500,3034,3800,5803,5804,2195,4814,5805,2163,5806,5807,5808,5809,5810,5811,5812, # 5408
+5813,5814,5815,5816,5817,5818,5819,5820,5821,5822,5823,5824,5825,5826,5827,5828, # 5424
+5829,5830,5831,5832,5833,5834,5835,5836,5837,5838,5839,5840,5841,5842,5843,5844, # 5440
+5845,5846,5847,5848,5849,5850,5851,5852,5853,5854,5855,5856,5857,5858,5859,5860, # 5456
+5861,5862,5863,5864,5865,5866,5867,5868,5869,5870,5871,5872,5873,5874,5875,5876, # 5472
+5877,5878,5879,5880,5881,5882,5883,5884,5885,5886,5887,5888,5889,5890,5891,5892, # 5488
+5893,5894,5895,5896,5897,5898,5899,5900,5901,5902,5903,5904,5905,5906,5907,5908, # 5504
+5909,5910,5911,5912,5913,5914,5915,5916,5917,5918,5919,5920,5921,5922,5923,5924, # 5520
+5925,5926,5927,5928,5929,5930,5931,5932,5933,5934,5935,5936,5937,5938,5939,5940, # 5536
+5941,5942,5943,5944,5945,5946,5947,5948,5949,5950,5951,5952,5953,5954,5955,5956, # 5552
+5957,5958,5959,5960,5961,5962,5963,5964,5965,5966,5967,5968,5969,5970,5971,5972, # 5568
+5973,5974,5975,5976,5977,5978,5979,5980,5981,5982,5983,5984,5985,5986,5987,5988, # 5584
+5989,5990,5991,5992,5993,5994,5995,5996,5997,5998,5999,6000,6001,6002,6003,6004, # 5600
+6005,6006,6007,6008,6009,6010,6011,6012,6013,6014,6015,6016,6017,6018,6019,6020, # 5616
+6021,6022,6023,6024,6025,6026,6027,6028,6029,6030,6031,6032,6033,6034,6035,6036, # 5632
+6037,6038,6039,6040,6041,6042,6043,6044,6045,6046,6047,6048,6049,6050,6051,6052, # 5648
+6053,6054,6055,6056,6057,6058,6059,6060,6061,6062,6063,6064,6065,6066,6067,6068, # 5664
+6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080,6081,6082,6083,6084, # 5680
+6085,6086,6087,6088,6089,6090,6091,6092,6093,6094,6095,6096,6097,6098,6099,6100, # 5696
+6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112,6113,6114,6115,6116, # 5712
+6117,6118,6119,6120,6121,6122,6123,6124,6125,6126,6127,6128,6129,6130,6131,6132, # 5728
+6133,6134,6135,6136,6137,6138,6139,6140,6141,6142,6143,6144,6145,6146,6147,6148, # 5744
+6149,6150,6151,6152,6153,6154,6155,6156,6157,6158,6159,6160,6161,6162,6163,6164, # 5760
+6165,6166,6167,6168,6169,6170,6171,6172,6173,6174,6175,6176,6177,6178,6179,6180, # 5776
+6181,6182,6183,6184,6185,6186,6187,6188,6189,6190,6191,6192,6193,6194,6195,6196, # 5792
+6197,6198,6199,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,6212, # 5808
+6213,6214,6215,6216,6217,6218,6219,6220,6221,6222,6223,3670,6224,6225,6226,6227, # 5824
+6228,6229,6230,6231,6232,6233,6234,6235,6236,6237,6238,6239,6240,6241,6242,6243, # 5840
+6244,6245,6246,6247,6248,6249,6250,6251,6252,6253,6254,6255,6256,6257,6258,6259, # 5856
+6260,6261,6262,6263,6264,6265,6266,6267,6268,6269,6270,6271,6272,6273,6274,6275, # 5872
+6276,6277,6278,6279,6280,6281,6282,6283,6284,6285,4815,6286,6287,6288,6289,6290, # 5888
+6291,6292,4816,6293,6294,6295,6296,6297,6298,6299,6300,6301,6302,6303,6304,6305, # 5904
+6306,6307,6308,6309,6310,6311,4817,4818,6312,6313,6314,6315,6316,6317,6318,4819, # 5920
+6319,6320,6321,6322,6323,6324,6325,6326,6327,6328,6329,6330,6331,6332,6333,6334, # 5936
+6335,6336,6337,4820,6338,6339,6340,6341,6342,6343,6344,6345,6346,6347,6348,6349, # 5952
+6350,6351,6352,6353,6354,6355,6356,6357,6358,6359,6360,6361,6362,6363,6364,6365, # 5968
+6366,6367,6368,6369,6370,6371,6372,6373,6374,6375,6376,6377,6378,6379,6380,6381, # 5984
+6382,6383,6384,6385,6386,6387,6388,6389,6390,6391,6392,6393,6394,6395,6396,6397, # 6000
+6398,6399,6400,6401,6402,6403,6404,6405,6406,6407,6408,6409,6410,3441,6411,6412, # 6016
+6413,6414,6415,6416,6417,6418,6419,6420,6421,6422,6423,6424,6425,4440,6426,6427, # 6032
+6428,6429,6430,6431,6432,6433,6434,6435,6436,6437,6438,6439,6440,6441,6442,6443, # 6048
+6444,6445,6446,6447,6448,6449,6450,6451,6452,6453,6454,4821,6455,6456,6457,6458, # 6064
+6459,6460,6461,6462,6463,6464,6465,6466,6467,6468,6469,6470,6471,6472,6473,6474, # 6080
+6475,6476,6477,3947,3948,6478,6479,6480,6481,3272,4441,6482,6483,6484,6485,4442, # 6096
+6486,6487,6488,6489,6490,6491,6492,6493,6494,6495,6496,4822,6497,6498,6499,6500, # 6112
+6501,6502,6503,6504,6505,6506,6507,6508,6509,6510,6511,6512,6513,6514,6515,6516, # 6128
+6517,6518,6519,6520,6521,6522,6523,6524,6525,6526,6527,6528,6529,6530,6531,6532, # 6144
+6533,6534,6535,6536,6537,6538,6539,6540,6541,6542,6543,6544,6545,6546,6547,6548, # 6160
+6549,6550,6551,6552,6553,6554,6555,6556,2784,6557,4823,6558,6559,6560,6561,6562, # 6176
+6563,6564,6565,6566,6567,6568,6569,3949,6570,6571,6572,4824,6573,6574,6575,6576, # 6192
+6577,6578,6579,6580,6581,6582,6583,4825,6584,6585,6586,3950,2785,6587,6588,6589, # 6208
+6590,6591,6592,6593,6594,6595,6596,6597,6598,6599,6600,6601,6602,6603,6604,6605, # 6224
+6606,6607,6608,6609,6610,6611,6612,4826,6613,6614,6615,4827,6616,6617,6618,6619, # 6240
+6620,6621,6622,6623,6624,6625,4164,6626,6627,6628,6629,6630,6631,6632,6633,6634, # 6256
+3547,6635,4828,6636,6637,6638,6639,6640,6641,6642,3951,2984,6643,6644,6645,6646, # 6272
+6647,6648,6649,4165,6650,4829,6651,6652,4830,6653,6654,6655,6656,6657,6658,6659, # 6288
+6660,6661,6662,4831,6663,6664,6665,6666,6667,6668,6669,6670,6671,4166,6672,4832, # 6304
+3952,6673,6674,6675,6676,4833,6677,6678,6679,4167,6680,6681,6682,3198,6683,6684, # 6320
+6685,6686,6687,6688,6689,6690,6691,6692,6693,6694,6695,6696,6697,4834,6698,6699, # 6336
+6700,6701,6702,6703,6704,6705,6706,6707,6708,6709,6710,6711,6712,6713,6714,6715, # 6352
+6716,6717,6718,6719,6720,6721,6722,6723,6724,6725,6726,6727,6728,6729,6730,6731, # 6368
+6732,6733,6734,4443,6735,6736,6737,6738,6739,6740,6741,6742,6743,6744,6745,4444, # 6384
+6746,6747,6748,6749,6750,6751,6752,6753,6754,6755,6756,6757,6758,6759,6760,6761, # 6400
+6762,6763,6764,6765,6766,6767,6768,6769,6770,6771,6772,6773,6774,6775,6776,6777, # 6416
+6778,6779,6780,6781,4168,6782,6783,3442,6784,6785,6786,6787,6788,6789,6790,6791, # 6432
+4169,6792,6793,6794,6795,6796,6797,6798,6799,6800,6801,6802,6803,6804,6805,6806, # 6448
+6807,6808,6809,6810,6811,4835,6812,6813,6814,4445,6815,6816,4446,6817,6818,6819, # 6464
+6820,6821,6822,6823,6824,6825,6826,6827,6828,6829,6830,6831,6832,6833,6834,6835, # 6480
+3548,6836,6837,6838,6839,6840,6841,6842,6843,6844,6845,6846,4836,6847,6848,6849, # 6496
+6850,6851,6852,6853,6854,3953,6855,6856,6857,6858,6859,6860,6861,6862,6863,6864, # 6512
+6865,6866,6867,6868,6869,6870,6871,6872,6873,6874,6875,6876,6877,3199,6878,6879, # 6528
+6880,6881,6882,4447,6883,6884,6885,6886,6887,6888,6889,6890,6891,6892,6893,6894, # 6544
+6895,6896,6897,6898,6899,6900,6901,6902,6903,6904,4170,6905,6906,6907,6908,6909, # 6560
+6910,6911,6912,6913,6914,6915,6916,6917,6918,6919,6920,6921,6922,6923,6924,6925, # 6576
+6926,6927,4837,6928,6929,6930,6931,6932,6933,6934,6935,6936,3346,6937,6938,4838, # 6592
+6939,6940,6941,4448,6942,6943,6944,6945,6946,4449,6947,6948,6949,6950,6951,6952, # 6608
+6953,6954,6955,6956,6957,6958,6959,6960,6961,6962,6963,6964,6965,6966,6967,6968, # 6624
+6969,6970,6971,6972,6973,6974,6975,6976,6977,6978,6979,6980,6981,6982,6983,6984, # 6640
+6985,6986,6987,6988,6989,6990,6991,6992,6993,6994,3671,6995,6996,6997,6998,4839, # 6656
+6999,7000,7001,7002,3549,7003,7004,7005,7006,7007,7008,7009,7010,7011,7012,7013, # 6672
+7014,7015,7016,7017,7018,7019,7020,7021,7022,7023,7024,7025,7026,7027,7028,7029, # 6688
+7030,4840,7031,7032,7033,7034,7035,7036,7037,7038,4841,7039,7040,7041,7042,7043, # 6704
+7044,7045,7046,7047,7048,7049,7050,7051,7052,7053,7054,7055,7056,7057,7058,7059, # 6720
+7060,7061,7062,7063,7064,7065,7066,7067,7068,7069,7070,2985,7071,7072,7073,7074, # 6736
+7075,7076,7077,7078,7079,7080,4842,7081,7082,7083,7084,7085,7086,7087,7088,7089, # 6752
+7090,7091,7092,7093,7094,7095,7096,7097,7098,7099,7100,7101,7102,7103,7104,7105, # 6768
+7106,7107,7108,7109,7110,7111,7112,7113,7114,7115,7116,7117,7118,4450,7119,7120, # 6784
+7121,7122,7123,7124,7125,7126,7127,7128,7129,7130,7131,7132,7133,7134,7135,7136, # 6800
+7137,7138,7139,7140,7141,7142,7143,4843,7144,7145,7146,7147,7148,7149,7150,7151, # 6816
+7152,7153,7154,7155,7156,7157,7158,7159,7160,7161,7162,7163,7164,7165,7166,7167, # 6832
+7168,7169,7170,7171,7172,7173,7174,7175,7176,7177,7178,7179,7180,7181,7182,7183, # 6848
+7184,7185,7186,7187,7188,4171,4172,7189,7190,7191,7192,7193,7194,7195,7196,7197, # 6864
+7198,7199,7200,7201,7202,7203,7204,7205,7206,7207,7208,7209,7210,7211,7212,7213, # 6880
+7214,7215,7216,7217,7218,7219,7220,7221,7222,7223,7224,7225,7226,7227,7228,7229, # 6896
+7230,7231,7232,7233,7234,7235,7236,7237,7238,7239,7240,7241,7242,7243,7244,7245, # 6912
+7246,7247,7248,7249,7250,7251,7252,7253,7254,7255,7256,7257,7258,7259,7260,7261, # 6928
+7262,7263,7264,7265,7266,7267,7268,7269,7270,7271,7272,7273,7274,7275,7276,7277, # 6944
+7278,7279,7280,7281,7282,7283,7284,7285,7286,7287,7288,7289,7290,7291,7292,7293, # 6960
+7294,7295,7296,4844,7297,7298,7299,7300,7301,7302,7303,7304,7305,7306,7307,7308, # 6976
+7309,7310,7311,7312,7313,7314,7315,7316,4451,7317,7318,7319,7320,7321,7322,7323, # 6992
+7324,7325,7326,7327,7328,7329,7330,7331,7332,7333,7334,7335,7336,7337,7338,7339, # 7008
+7340,7341,7342,7343,7344,7345,7346,7347,7348,7349,7350,7351,7352,7353,4173,7354, # 7024
+7355,4845,7356,7357,7358,7359,7360,7361,7362,7363,7364,7365,7366,7367,7368,7369, # 7040
+7370,7371,7372,7373,7374,7375,7376,7377,7378,7379,7380,7381,7382,7383,7384,7385, # 7056
+7386,7387,7388,4846,7389,7390,7391,7392,7393,7394,7395,7396,7397,7398,7399,7400, # 7072
+7401,7402,7403,7404,7405,3672,7406,7407,7408,7409,7410,7411,7412,7413,7414,7415, # 7088
+7416,7417,7418,7419,7420,7421,7422,7423,7424,7425,7426,7427,7428,7429,7430,7431, # 7104
+7432,7433,7434,7435,7436,7437,7438,7439,7440,7441,7442,7443,7444,7445,7446,7447, # 7120
+7448,7449,7450,7451,7452,7453,4452,7454,3200,7455,7456,7457,7458,7459,7460,7461, # 7136
+7462,7463,7464,7465,7466,7467,7468,7469,7470,7471,7472,7473,7474,4847,7475,7476, # 7152
+7477,3133,7478,7479,7480,7481,7482,7483,7484,7485,7486,7487,7488,7489,7490,7491, # 7168
+7492,7493,7494,7495,7496,7497,7498,7499,7500,7501,7502,3347,7503,7504,7505,7506, # 7184
+7507,7508,7509,7510,7511,7512,7513,7514,7515,7516,7517,7518,7519,7520,7521,4848, # 7200
+7522,7523,7524,7525,7526,7527,7528,7529,7530,7531,7532,7533,7534,7535,7536,7537, # 7216
+7538,7539,7540,7541,7542,7543,7544,7545,7546,7547,7548,7549,3801,4849,7550,7551, # 7232
+7552,7553,7554,7555,7556,7557,7558,7559,7560,7561,7562,7563,7564,7565,7566,7567, # 7248
+7568,7569,3035,7570,7571,7572,7573,7574,7575,7576,7577,7578,7579,7580,7581,7582, # 7264
+7583,7584,7585,7586,7587,7588,7589,7590,7591,7592,7593,7594,7595,7596,7597,7598, # 7280
+7599,7600,7601,7602,7603,7604,7605,7606,7607,7608,7609,7610,7611,7612,7613,7614, # 7296
+7615,7616,4850,7617,7618,3802,7619,7620,7621,7622,7623,7624,7625,7626,7627,7628, # 7312
+7629,7630,7631,7632,4851,7633,7634,7635,7636,7637,7638,7639,7640,7641,7642,7643, # 7328
+7644,7645,7646,7647,7648,7649,7650,7651,7652,7653,7654,7655,7656,7657,7658,7659, # 7344
+7660,7661,7662,7663,7664,7665,7666,7667,7668,7669,7670,4453,7671,7672,7673,7674, # 7360
+7675,7676,7677,7678,7679,7680,7681,7682,7683,7684,7685,7686,7687,7688,7689,7690, # 7376
+7691,7692,7693,7694,7695,7696,7697,3443,7698,7699,7700,7701,7702,4454,7703,7704, # 7392
+7705,7706,7707,7708,7709,7710,7711,7712,7713,2472,7714,7715,7716,7717,7718,7719, # 7408
+7720,7721,7722,7723,7724,7725,7726,7727,7728,7729,7730,7731,3954,7732,7733,7734, # 7424
+7735,7736,7737,7738,7739,7740,7741,7742,7743,7744,7745,7746,7747,7748,7749,7750, # 7440
+3134,7751,7752,4852,7753,7754,7755,4853,7756,7757,7758,7759,7760,4174,7761,7762, # 7456
+7763,7764,7765,7766,7767,7768,7769,7770,7771,7772,7773,7774,7775,7776,7777,7778, # 7472
+7779,7780,7781,7782,7783,7784,7785,7786,7787,7788,7789,7790,7791,7792,7793,7794, # 7488
+7795,7796,7797,7798,7799,7800,7801,7802,7803,7804,7805,4854,7806,7807,7808,7809, # 7504
+7810,7811,7812,7813,7814,7815,7816,7817,7818,7819,7820,7821,7822,7823,7824,7825, # 7520
+4855,7826,7827,7828,7829,7830,7831,7832,7833,7834,7835,7836,7837,7838,7839,7840, # 7536
+7841,7842,7843,7844,7845,7846,7847,3955,7848,7849,7850,7851,7852,7853,7854,7855, # 7552
+7856,7857,7858,7859,7860,3444,7861,7862,7863,7864,7865,7866,7867,7868,7869,7870, # 7568
+7871,7872,7873,7874,7875,7876,7877,7878,7879,7880,7881,7882,7883,7884,7885,7886, # 7584
+7887,7888,7889,7890,7891,4175,7892,7893,7894,7895,7896,4856,4857,7897,7898,7899, # 7600
+7900,2598,7901,7902,7903,7904,7905,7906,7907,7908,4455,7909,7910,7911,7912,7913, # 7616
+7914,3201,7915,7916,7917,7918,7919,7920,7921,4858,7922,7923,7924,7925,7926,7927, # 7632
+7928,7929,7930,7931,7932,7933,7934,7935,7936,7937,7938,7939,7940,7941,7942,7943, # 7648
+7944,7945,7946,7947,7948,7949,7950,7951,7952,7953,7954,7955,7956,7957,7958,7959, # 7664
+7960,7961,7962,7963,7964,7965,7966,7967,7968,7969,7970,7971,7972,7973,7974,7975, # 7680
+7976,7977,7978,7979,7980,7981,4859,7982,7983,7984,7985,7986,7987,7988,7989,7990, # 7696
+7991,7992,7993,7994,7995,7996,4860,7997,7998,7999,8000,8001,8002,8003,8004,8005, # 7712
+8006,8007,8008,8009,8010,8011,8012,8013,8014,8015,8016,4176,8017,8018,8019,8020, # 7728
+8021,8022,8023,4861,8024,8025,8026,8027,8028,8029,8030,8031,8032,8033,8034,8035, # 7744
+8036,4862,4456,8037,8038,8039,8040,4863,8041,8042,8043,8044,8045,8046,8047,8048, # 7760
+8049,8050,8051,8052,8053,8054,8055,8056,8057,8058,8059,8060,8061,8062,8063,8064, # 7776
+8065,8066,8067,8068,8069,8070,8071,8072,8073,8074,8075,8076,8077,8078,8079,8080, # 7792
+8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095,8096, # 7808
+8097,8098,8099,4864,4177,8100,8101,8102,8103,8104,8105,8106,8107,8108,8109,8110, # 7824
+8111,8112,8113,8114,8115,8116,8117,8118,8119,8120,4178,8121,8122,8123,8124,8125, # 7840
+8126,8127,8128,8129,8130,8131,8132,8133,8134,8135,8136,8137,8138,8139,8140,8141, # 7856
+8142,8143,8144,8145,4865,4866,8146,8147,8148,8149,8150,8151,8152,8153,8154,8155, # 7872
+8156,8157,8158,8159,8160,8161,8162,8163,8164,8165,4179,8166,8167,8168,8169,8170, # 7888
+8171,8172,8173,8174,8175,8176,8177,8178,8179,8180,8181,4457,8182,8183,8184,8185, # 7904
+8186,8187,8188,8189,8190,8191,8192,8193,8194,8195,8196,8197,8198,8199,8200,8201, # 7920
+8202,8203,8204,8205,8206,8207,8208,8209,8210,8211,8212,8213,8214,8215,8216,8217, # 7936
+8218,8219,8220,8221,8222,8223,8224,8225,8226,8227,8228,8229,8230,8231,8232,8233, # 7952
+8234,8235,8236,8237,8238,8239,8240,8241,8242,8243,8244,8245,8246,8247,8248,8249, # 7968
+8250,8251,8252,8253,8254,8255,8256,3445,8257,8258,8259,8260,8261,8262,4458,8263, # 7984
+8264,8265,8266,8267,8268,8269,8270,8271,8272,4459,8273,8274,8275,8276,3550,8277, # 8000
+8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,8288,8289,4460,8290,8291,8292, # 8016
+8293,8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,8304,8305,8306,8307,4867, # 8032
+8308,8309,8310,8311,8312,3551,8313,8314,8315,8316,8317,8318,8319,8320,8321,8322, # 8048
+8323,8324,8325,8326,4868,8327,8328,8329,8330,8331,8332,8333,8334,8335,8336,8337, # 8064
+8338,8339,8340,8341,8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,8352,8353, # 8080
+8354,8355,8356,8357,8358,8359,8360,8361,8362,8363,4869,4461,8364,8365,8366,8367, # 8096
+8368,8369,8370,4870,8371,8372,8373,8374,8375,8376,8377,8378,8379,8380,8381,8382, # 8112
+8383,8384,8385,8386,8387,8388,8389,8390,8391,8392,8393,8394,8395,8396,8397,8398, # 8128
+8399,8400,8401,8402,8403,8404,8405,8406,8407,8408,8409,8410,4871,8411,8412,8413, # 8144
+8414,8415,8416,8417,8418,8419,8420,8421,8422,4462,8423,8424,8425,8426,8427,8428, # 8160
+8429,8430,8431,8432,8433,2986,8434,8435,8436,8437,8438,8439,8440,8441,8442,8443, # 8176
+8444,8445,8446,8447,8448,8449,8450,8451,8452,8453,8454,8455,8456,8457,8458,8459, # 8192
+8460,8461,8462,8463,8464,8465,8466,8467,8468,8469,8470,8471,8472,8473,8474,8475, # 8208
+8476,8477,8478,4180,8479,8480,8481,8482,8483,8484,8485,8486,8487,8488,8489,8490, # 8224
+8491,8492,8493,8494,8495,8496,8497,8498,8499,8500,8501,8502,8503,8504,8505,8506, # 8240
+8507,8508,8509,8510,8511,8512,8513,8514,8515,8516,8517,8518,8519,8520,8521,8522, # 8256
+8523,8524,8525,8526,8527,8528,8529,8530,8531,8532,8533,8534,8535,8536,8537,8538, # 8272
+8539,8540,8541,8542,8543,8544,8545,8546,8547,8548,8549,8550,8551,8552,8553,8554, # 8288
+8555,8556,8557,8558,8559,8560,8561,8562,8563,8564,4872,8565,8566,8567,8568,8569, # 8304
+8570,8571,8572,8573,4873,8574,8575,8576,8577,8578,8579,8580,8581,8582,8583,8584, # 8320
+8585,8586,8587,8588,8589,8590,8591,8592,8593,8594,8595,8596,8597,8598,8599,8600, # 8336
+8601,8602,8603,8604,8605,3803,8606,8607,8608,8609,8610,8611,8612,8613,4874,3804, # 8352
+8614,8615,8616,8617,8618,8619,8620,8621,3956,8622,8623,8624,8625,8626,8627,8628, # 8368
+8629,8630,8631,8632,8633,8634,8635,8636,8637,8638,2865,8639,8640,8641,8642,8643, # 8384
+8644,8645,8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,8656,4463,8657,8658, # 8400
+8659,4875,4876,8660,8661,8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,8672, # 8416
+8673,8674,8675,8676,8677,8678,8679,8680,8681,4464,8682,8683,8684,8685,8686,8687, # 8432
+8688,8689,8690,8691,8692,8693,8694,8695,8696,8697,8698,8699,8700,8701,8702,8703, # 8448
+8704,8705,8706,8707,8708,8709,2261,8710,8711,8712,8713,8714,8715,8716,8717,8718, # 8464
+8719,8720,8721,8722,8723,8724,8725,8726,8727,8728,8729,8730,8731,8732,8733,4181, # 8480
+8734,8735,8736,8737,8738,8739,8740,8741,8742,8743,8744,8745,8746,8747,8748,8749, # 8496
+8750,8751,8752,8753,8754,8755,8756,8757,8758,8759,8760,8761,8762,8763,4877,8764, # 8512
+8765,8766,8767,8768,8769,8770,8771,8772,8773,8774,8775,8776,8777,8778,8779,8780, # 8528
+8781,8782,8783,8784,8785,8786,8787,8788,4878,8789,4879,8790,8791,8792,4880,8793, # 8544
+8794,8795,8796,8797,8798,8799,8800,8801,4881,8802,8803,8804,8805,8806,8807,8808, # 8560
+8809,8810,8811,8812,8813,8814,8815,3957,8816,8817,8818,8819,8820,8821,8822,8823, # 8576
+8824,8825,8826,8827,8828,8829,8830,8831,8832,8833,8834,8835,8836,8837,8838,8839, # 8592
+8840,8841,8842,8843,8844,8845,8846,8847,4882,8848,8849,8850,8851,8852,8853,8854, # 8608
+8855,8856,8857,8858,8859,8860,8861,8862,8863,8864,8865,8866,8867,8868,8869,8870, # 8624
+8871,8872,8873,8874,8875,8876,8877,8878,8879,8880,8881,8882,8883,8884,3202,8885, # 8640
+8886,8887,8888,8889,8890,8891,8892,8893,8894,8895,8896,8897,8898,8899,8900,8901, # 8656
+8902,8903,8904,8905,8906,8907,8908,8909,8910,8911,8912,8913,8914,8915,8916,8917, # 8672
+8918,8919,8920,8921,8922,8923,8924,4465,8925,8926,8927,8928,8929,8930,8931,8932, # 8688
+4883,8933,8934,8935,8936,8937,8938,8939,8940,8941,8942,8943,2214,8944,8945,8946, # 8704
+8947,8948,8949,8950,8951,8952,8953,8954,8955,8956,8957,8958,8959,8960,8961,8962, # 8720
+8963,8964,8965,4884,8966,8967,8968,8969,8970,8971,8972,8973,8974,8975,8976,8977, # 8736
+8978,8979,8980,8981,8982,8983,8984,8985,8986,8987,8988,8989,8990,8991,8992,4885, # 8752
+8993,8994,8995,8996,8997,8998,8999,9000,9001,9002,9003,9004,9005,9006,9007,9008, # 8768
+9009,9010,9011,9012,9013,9014,9015,9016,9017,9018,9019,9020,9021,4182,9022,9023, # 8784
+9024,9025,9026,9027,9028,9029,9030,9031,9032,9033,9034,9035,9036,9037,9038,9039, # 8800
+9040,9041,9042,9043,9044,9045,9046,9047,9048,9049,9050,9051,9052,9053,9054,9055, # 8816
+9056,9057,9058,9059,9060,9061,9062,9063,4886,9064,9065,9066,9067,9068,9069,4887, # 8832
+9070,9071,9072,9073,9074,9075,9076,9077,9078,9079,9080,9081,9082,9083,9084,9085, # 8848
+9086,9087,9088,9089,9090,9091,9092,9093,9094,9095,9096,9097,9098,9099,9100,9101, # 8864
+9102,9103,9104,9105,9106,9107,9108,9109,9110,9111,9112,9113,9114,9115,9116,9117, # 8880
+9118,9119,9120,9121,9122,9123,9124,9125,9126,9127,9128,9129,9130,9131,9132,9133, # 8896
+9134,9135,9136,9137,9138,9139,9140,9141,3958,9142,9143,9144,9145,9146,9147,9148, # 8912
+9149,9150,9151,4888,9152,9153,9154,9155,9156,9157,9158,9159,9160,9161,9162,9163, # 8928
+9164,9165,9166,9167,9168,9169,9170,9171,9172,9173,9174,9175,4889,9176,9177,9178, # 8944
+9179,9180,9181,9182,9183,9184,9185,9186,9187,9188,9189,9190,9191,9192,9193,9194, # 8960
+9195,9196,9197,9198,9199,9200,9201,9202,9203,4890,9204,9205,9206,9207,9208,9209, # 8976
+9210,9211,9212,9213,9214,9215,9216,9217,9218,9219,9220,9221,9222,4466,9223,9224, # 8992
+9225,9226,9227,9228,9229,9230,9231,9232,9233,9234,9235,9236,9237,9238,9239,9240, # 9008
+9241,9242,9243,9244,9245,4891,9246,9247,9248,9249,9250,9251,9252,9253,9254,9255, # 9024
+9256,9257,4892,9258,9259,9260,9261,4893,4894,9262,9263,9264,9265,9266,9267,9268, # 9040
+9269,9270,9271,9272,9273,4467,9274,9275,9276,9277,9278,9279,9280,9281,9282,9283, # 9056
+9284,9285,3673,9286,9287,9288,9289,9290,9291,9292,9293,9294,9295,9296,9297,9298, # 9072
+9299,9300,9301,9302,9303,9304,9305,9306,9307,9308,9309,9310,9311,9312,9313,9314, # 9088
+9315,9316,9317,9318,9319,9320,9321,9322,4895,9323,9324,9325,9326,9327,9328,9329, # 9104
+9330,9331,9332,9333,9334,9335,9336,9337,9338,9339,9340,9341,9342,9343,9344,9345, # 9120
+9346,9347,4468,9348,9349,9350,9351,9352,9353,9354,9355,9356,9357,9358,9359,9360, # 9136
+9361,9362,9363,9364,9365,9366,9367,9368,9369,9370,9371,9372,9373,4896,9374,4469, # 9152
+9375,9376,9377,9378,9379,4897,9380,9381,9382,9383,9384,9385,9386,9387,9388,9389, # 9168
+9390,9391,9392,9393,9394,9395,9396,9397,9398,9399,9400,9401,9402,9403,9404,9405, # 9184
+9406,4470,9407,2751,9408,9409,3674,3552,9410,9411,9412,9413,9414,9415,9416,9417, # 9200
+9418,9419,9420,9421,4898,9422,9423,9424,9425,9426,9427,9428,9429,3959,9430,9431, # 9216
+9432,9433,9434,9435,9436,4471,9437,9438,9439,9440,9441,9442,9443,9444,9445,9446, # 9232
+9447,9448,9449,9450,3348,9451,9452,9453,9454,9455,9456,9457,9458,9459,9460,9461, # 9248
+9462,9463,9464,9465,9466,9467,9468,9469,9470,9471,9472,4899,9473,9474,9475,9476, # 9264
+9477,4900,9478,9479,9480,9481,9482,9483,9484,9485,9486,9487,9488,3349,9489,9490, # 9280
+9491,9492,9493,9494,9495,9496,9497,9498,9499,9500,9501,9502,9503,9504,9505,9506, # 9296
+9507,9508,9509,9510,9511,9512,9513,9514,9515,9516,9517,9518,9519,9520,4901,9521, # 9312
+9522,9523,9524,9525,9526,4902,9527,9528,9529,9530,9531,9532,9533,9534,9535,9536, # 9328
+9537,9538,9539,9540,9541,9542,9543,9544,9545,9546,9547,9548,9549,9550,9551,9552, # 9344
+9553,9554,9555,9556,9557,9558,9559,9560,9561,9562,9563,9564,9565,9566,9567,9568, # 9360
+9569,9570,9571,9572,9573,9574,9575,9576,9577,9578,9579,9580,9581,9582,9583,9584, # 9376
+3805,9585,9586,9587,9588,9589,9590,9591,9592,9593,9594,9595,9596,9597,9598,9599, # 9392
+9600,9601,9602,4903,9603,9604,9605,9606,9607,4904,9608,9609,9610,9611,9612,9613, # 9408
+9614,4905,9615,9616,9617,9618,9619,9620,9621,9622,9623,9624,9625,9626,9627,9628, # 9424
+9629,9630,9631,9632,4906,9633,9634,9635,9636,9637,9638,9639,9640,9641,9642,9643, # 9440
+4907,9644,9645,9646,9647,9648,9649,9650,9651,9652,9653,9654,9655,9656,9657,9658, # 9456
+9659,9660,9661,9662,9663,9664,9665,9666,9667,9668,9669,9670,9671,9672,4183,9673, # 9472
+9674,9675,9676,9677,4908,9678,9679,9680,9681,4909,9682,9683,9684,9685,9686,9687, # 9488
+9688,9689,9690,4910,9691,9692,9693,3675,9694,9695,9696,2945,9697,9698,9699,9700, # 9504
+9701,9702,9703,9704,9705,4911,9706,9707,9708,9709,9710,9711,9712,9713,9714,9715, # 9520
+9716,9717,9718,9719,9720,9721,9722,9723,9724,9725,9726,9727,9728,9729,9730,9731, # 9536
+9732,9733,9734,9735,4912,9736,9737,9738,9739,9740,4913,9741,9742,9743,9744,9745, # 9552
+9746,9747,9748,9749,9750,9751,9752,9753,9754,9755,9756,9757,9758,4914,9759,9760, # 9568
+9761,9762,9763,9764,9765,9766,9767,9768,9769,9770,9771,9772,9773,9774,9775,9776, # 9584
+9777,9778,9779,9780,9781,9782,4915,9783,9784,9785,9786,9787,9788,9789,9790,9791, # 9600
+9792,9793,4916,9794,9795,9796,9797,9798,9799,9800,9801,9802,9803,9804,9805,9806, # 9616
+9807,9808,9809,9810,9811,9812,9813,9814,9815,9816,9817,9818,9819,9820,9821,9822, # 9632
+9823,9824,9825,9826,9827,9828,9829,9830,9831,9832,9833,9834,9835,9836,9837,9838, # 9648
+9839,9840,9841,9842,9843,9844,9845,9846,9847,9848,9849,9850,9851,9852,9853,9854, # 9664
+9855,9856,9857,9858,9859,9860,9861,9862,9863,9864,9865,9866,9867,9868,4917,9869, # 9680
+9870,9871,9872,9873,9874,9875,9876,9877,9878,9879,9880,9881,9882,9883,9884,9885, # 9696
+9886,9887,9888,9889,9890,9891,9892,4472,9893,9894,9895,9896,9897,3806,9898,9899, # 9712
+9900,9901,9902,9903,9904,9905,9906,9907,9908,9909,9910,9911,9912,9913,9914,4918, # 9728
+9915,9916,9917,4919,9918,9919,9920,9921,4184,9922,9923,9924,9925,9926,9927,9928, # 9744
+9929,9930,9931,9932,9933,9934,9935,9936,9937,9938,9939,9940,9941,9942,9943,9944, # 9760
+9945,9946,4920,9947,9948,9949,9950,9951,9952,9953,9954,9955,4185,9956,9957,9958, # 9776
+9959,9960,9961,9962,9963,9964,9965,4921,9966,9967,9968,4473,9969,9970,9971,9972, # 9792
+9973,9974,9975,9976,9977,4474,9978,9979,9980,9981,9982,9983,9984,9985,9986,9987, # 9808
+9988,9989,9990,9991,9992,9993,9994,9995,9996,9997,9998,9999,10000,10001,10002,10003, # 9824
+10004,10005,10006,10007,10008,10009,10010,10011,10012,10013,10014,10015,10016,10017,10018,10019, # 9840
+10020,10021,4922,10022,4923,10023,10024,10025,10026,10027,10028,10029,10030,10031,10032,10033, # 9856
+10034,10035,10036,10037,10038,10039,10040,10041,10042,10043,10044,10045,10046,10047,10048,4924, # 9872
+10049,10050,10051,10052,10053,10054,10055,10056,10057,10058,10059,10060,10061,10062,10063,10064, # 9888
+10065,10066,10067,10068,10069,10070,10071,10072,10073,10074,10075,10076,10077,10078,10079,10080, # 9904
+10081,10082,10083,10084,10085,10086,10087,4475,10088,10089,10090,10091,10092,10093,10094,10095, # 9920
+10096,10097,4476,10098,10099,10100,10101,10102,10103,10104,10105,10106,10107,10108,10109,10110, # 9936
+10111,2174,10112,10113,10114,10115,10116,10117,10118,10119,10120,10121,10122,10123,10124,10125, # 9952
+10126,10127,10128,10129,10130,10131,10132,10133,10134,10135,10136,10137,10138,10139,10140,3807, # 9968
+4186,4925,10141,10142,10143,10144,10145,10146,10147,4477,4187,10148,10149,10150,10151,10152, # 9984
+10153,4188,10154,10155,10156,10157,10158,10159,10160,10161,4926,10162,10163,10164,10165,10166, #10000
+10167,10168,10169,10170,10171,10172,10173,10174,10175,10176,10177,10178,10179,10180,10181,10182, #10016
+10183,10184,10185,10186,10187,10188,10189,10190,10191,10192,3203,10193,10194,10195,10196,10197, #10032
+10198,10199,10200,4478,10201,10202,10203,10204,4479,10205,10206,10207,10208,10209,10210,10211, #10048
+10212,10213,10214,10215,10216,10217,10218,10219,10220,10221,10222,10223,10224,10225,10226,10227, #10064
+10228,10229,10230,10231,10232,10233,10234,4927,10235,10236,10237,10238,10239,10240,10241,10242, #10080
+10243,10244,10245,10246,10247,10248,10249,10250,10251,10252,10253,10254,10255,10256,10257,10258, #10096
+10259,10260,10261,10262,10263,10264,10265,10266,10267,10268,10269,10270,10271,10272,10273,4480, #10112
+4928,4929,10274,10275,10276,10277,10278,10279,10280,10281,10282,10283,10284,10285,10286,10287, #10128
+10288,10289,10290,10291,10292,10293,10294,10295,10296,10297,10298,10299,10300,10301,10302,10303, #10144
+10304,10305,10306,10307,10308,10309,10310,10311,10312,10313,10314,10315,10316,10317,10318,10319, #10160
+10320,10321,10322,10323,10324,10325,10326,10327,10328,10329,10330,10331,10332,10333,10334,4930, #10176
+10335,10336,10337,10338,10339,10340,10341,10342,4931,10343,10344,10345,10346,10347,10348,10349, #10192
+10350,10351,10352,10353,10354,10355,3088,10356,2786,10357,10358,10359,10360,4189,10361,10362, #10208
+10363,10364,10365,10366,10367,10368,10369,10370,10371,10372,10373,10374,10375,4932,10376,10377, #10224
+10378,10379,10380,10381,10382,10383,10384,10385,10386,10387,10388,10389,10390,10391,10392,4933, #10240
+10393,10394,10395,4934,10396,10397,10398,10399,10400,10401,10402,10403,10404,10405,10406,10407, #10256
+10408,10409,10410,10411,10412,3446,10413,10414,10415,10416,10417,10418,10419,10420,10421,10422, #10272
+10423,4935,10424,10425,10426,10427,10428,10429,10430,4936,10431,10432,10433,10434,10435,10436, #10288
+10437,10438,10439,10440,10441,10442,10443,4937,10444,10445,10446,10447,4481,10448,10449,10450, #10304
+10451,10452,10453,10454,10455,10456,10457,10458,10459,10460,10461,10462,10463,10464,10465,10466, #10320
+10467,10468,10469,10470,10471,10472,10473,10474,10475,10476,10477,10478,10479,10480,10481,10482, #10336
+10483,10484,10485,10486,10487,10488,10489,10490,10491,10492,10493,10494,10495,10496,10497,10498, #10352
+10499,10500,10501,10502,10503,10504,10505,4938,10506,10507,10508,10509,10510,2552,10511,10512, #10368
+10513,10514,10515,10516,3447,10517,10518,10519,10520,10521,10522,10523,10524,10525,10526,10527, #10384
+10528,10529,10530,10531,10532,10533,10534,10535,10536,10537,10538,10539,10540,10541,10542,10543, #10400
+4482,10544,4939,10545,10546,10547,10548,10549,10550,10551,10552,10553,10554,10555,10556,10557, #10416
+10558,10559,10560,10561,10562,10563,10564,10565,10566,10567,3676,4483,10568,10569,10570,10571, #10432
+10572,3448,10573,10574,10575,10576,10577,10578,10579,10580,10581,10582,10583,10584,10585,10586, #10448
+10587,10588,10589,10590,10591,10592,10593,10594,10595,10596,10597,10598,10599,10600,10601,10602, #10464
+10603,10604,10605,10606,10607,10608,10609,10610,10611,10612,10613,10614,10615,10616,10617,10618, #10480
+10619,10620,10621,10622,10623,10624,10625,10626,10627,4484,10628,10629,10630,10631,10632,4940, #10496
+10633,10634,10635,10636,10637,10638,10639,10640,10641,10642,10643,10644,10645,10646,10647,10648, #10512
+10649,10650,10651,10652,10653,10654,10655,10656,4941,10657,10658,10659,2599,10660,10661,10662, #10528
+10663,10664,10665,10666,3089,10667,10668,10669,10670,10671,10672,10673,10674,10675,10676,10677, #10544
+10678,10679,10680,4942,10681,10682,10683,10684,10685,10686,10687,10688,10689,10690,10691,10692, #10560
+10693,10694,10695,10696,10697,4485,10698,10699,10700,10701,10702,10703,10704,4943,10705,3677, #10576
+10706,10707,10708,10709,10710,10711,10712,4944,10713,10714,10715,10716,10717,10718,10719,10720, #10592
+10721,10722,10723,10724,10725,10726,10727,10728,4945,10729,10730,10731,10732,10733,10734,10735, #10608
+10736,10737,10738,10739,10740,10741,10742,10743,10744,10745,10746,10747,10748,10749,10750,10751, #10624
+10752,10753,10754,10755,10756,10757,10758,10759,10760,10761,4946,10762,10763,10764,10765,10766, #10640
+10767,4947,4948,10768,10769,10770,10771,10772,10773,10774,10775,10776,10777,10778,10779,10780, #10656
+10781,10782,10783,10784,10785,10786,10787,10788,10789,10790,10791,10792,10793,10794,10795,10796, #10672
+10797,10798,10799,10800,10801,10802,10803,10804,10805,10806,10807,10808,10809,10810,10811,10812, #10688
+10813,10814,10815,10816,10817,10818,10819,10820,10821,10822,10823,10824,10825,10826,10827,10828, #10704
+10829,10830,10831,10832,10833,10834,10835,10836,10837,10838,10839,10840,10841,10842,10843,10844, #10720
+10845,10846,10847,10848,10849,10850,10851,10852,10853,10854,10855,10856,10857,10858,10859,10860, #10736
+10861,10862,10863,10864,10865,10866,10867,10868,10869,10870,10871,10872,10873,10874,10875,10876, #10752
+10877,10878,4486,10879,10880,10881,10882,10883,10884,10885,4949,10886,10887,10888,10889,10890, #10768
+10891,10892,10893,10894,10895,10896,10897,10898,10899,10900,10901,10902,10903,10904,10905,10906, #10784
+10907,10908,10909,10910,10911,10912,10913,10914,10915,10916,10917,10918,10919,4487,10920,10921, #10800
+10922,10923,10924,10925,10926,10927,10928,10929,10930,10931,10932,4950,10933,10934,10935,10936, #10816
+10937,10938,10939,10940,10941,10942,10943,10944,10945,10946,10947,10948,10949,4488,10950,10951, #10832
+10952,10953,10954,10955,10956,10957,10958,10959,4190,10960,10961,10962,10963,10964,10965,10966, #10848
+10967,10968,10969,10970,10971,10972,10973,10974,10975,10976,10977,10978,10979,10980,10981,10982, #10864
+10983,10984,10985,10986,10987,10988,10989,10990,10991,10992,10993,10994,10995,10996,10997,10998, #10880
+10999,11000,11001,11002,11003,11004,11005,11006,3960,11007,11008,11009,11010,11011,11012,11013, #10896
+11014,11015,11016,11017,11018,11019,11020,11021,11022,11023,11024,11025,11026,11027,11028,11029, #10912
+11030,11031,11032,4951,11033,11034,11035,11036,11037,11038,11039,11040,11041,11042,11043,11044, #10928
+11045,11046,11047,4489,11048,11049,11050,11051,4952,11052,11053,11054,11055,11056,11057,11058, #10944
+4953,11059,11060,11061,11062,11063,11064,11065,11066,11067,11068,11069,11070,11071,4954,11072, #10960
+11073,11074,11075,11076,11077,11078,11079,11080,11081,11082,11083,11084,11085,11086,11087,11088, #10976
+11089,11090,11091,11092,11093,11094,11095,11096,11097,11098,11099,11100,11101,11102,11103,11104, #10992
+11105,11106,11107,11108,11109,11110,11111,11112,11113,11114,11115,3808,11116,11117,11118,11119, #11008
+11120,11121,11122,11123,11124,11125,11126,11127,11128,11129,11130,11131,11132,11133,11134,4955, #11024
+11135,11136,11137,11138,11139,11140,11141,11142,11143,11144,11145,11146,11147,11148,11149,11150, #11040
+11151,11152,11153,11154,11155,11156,11157,11158,11159,11160,11161,4956,11162,11163,11164,11165, #11056
+11166,11167,11168,11169,11170,11171,11172,11173,11174,11175,11176,11177,11178,11179,11180,4957, #11072
+11181,11182,11183,11184,11185,11186,4958,11187,11188,11189,11190,11191,11192,11193,11194,11195, #11088
+11196,11197,11198,11199,11200,3678,11201,11202,11203,11204,11205,11206,4191,11207,11208,11209, #11104
+11210,11211,11212,11213,11214,11215,11216,11217,11218,11219,11220,11221,11222,11223,11224,11225, #11120
+11226,11227,11228,11229,11230,11231,11232,11233,11234,11235,11236,11237,11238,11239,11240,11241, #11136
+11242,11243,11244,11245,11246,11247,11248,11249,11250,11251,4959,11252,11253,11254,11255,11256, #11152
+11257,11258,11259,11260,11261,11262,11263,11264,11265,11266,11267,11268,11269,11270,11271,11272, #11168
+11273,11274,11275,11276,11277,11278,11279,11280,11281,11282,11283,11284,11285,11286,11287,11288, #11184
+11289,11290,11291,11292,11293,11294,11295,11296,11297,11298,11299,11300,11301,11302,11303,11304, #11200
+11305,11306,11307,11308,11309,11310,11311,11312,11313,11314,3679,11315,11316,11317,11318,4490, #11216
+11319,11320,11321,11322,11323,11324,11325,11326,11327,11328,11329,11330,11331,11332,11333,11334, #11232
+11335,11336,11337,11338,11339,11340,11341,11342,11343,11344,11345,11346,11347,4960,11348,11349, #11248
+11350,11351,11352,11353,11354,11355,11356,11357,11358,11359,11360,11361,11362,11363,11364,11365, #11264
+11366,11367,11368,11369,11370,11371,11372,11373,11374,11375,11376,11377,3961,4961,11378,11379, #11280
+11380,11381,11382,11383,11384,11385,11386,11387,11388,11389,11390,11391,11392,11393,11394,11395, #11296
+11396,11397,4192,11398,11399,11400,11401,11402,11403,11404,11405,11406,11407,11408,11409,11410, #11312
+11411,4962,11412,11413,11414,11415,11416,11417,11418,11419,11420,11421,11422,11423,11424,11425, #11328
+11426,11427,11428,11429,11430,11431,11432,11433,11434,11435,11436,11437,11438,11439,11440,11441, #11344
+11442,11443,11444,11445,11446,11447,11448,11449,11450,11451,11452,11453,11454,11455,11456,11457, #11360
+11458,11459,11460,11461,11462,11463,11464,11465,11466,11467,11468,11469,4963,11470,11471,4491, #11376
+11472,11473,11474,11475,4964,11476,11477,11478,11479,11480,11481,11482,11483,11484,11485,11486, #11392
+11487,11488,11489,11490,11491,11492,4965,11493,11494,11495,11496,11497,11498,11499,11500,11501, #11408
+11502,11503,11504,11505,11506,11507,11508,11509,11510,11511,11512,11513,11514,11515,11516,11517, #11424
+11518,11519,11520,11521,11522,11523,11524,11525,11526,11527,11528,11529,3962,11530,11531,11532, #11440
+11533,11534,11535,11536,11537,11538,11539,11540,11541,11542,11543,11544,11545,11546,11547,11548, #11456
+11549,11550,11551,11552,11553,11554,11555,11556,11557,11558,11559,11560,11561,11562,11563,11564, #11472
+4193,4194,11565,11566,11567,11568,11569,11570,11571,11572,11573,11574,11575,11576,11577,11578, #11488
+11579,11580,11581,11582,11583,11584,11585,11586,11587,11588,11589,11590,11591,4966,4195,11592, #11504
+11593,11594,11595,11596,11597,11598,11599,11600,11601,11602,11603,11604,3090,11605,11606,11607, #11520
+11608,11609,11610,4967,11611,11612,11613,11614,11615,11616,11617,11618,11619,11620,11621,11622, #11536
+11623,11624,11625,11626,11627,11628,11629,11630,11631,11632,11633,11634,11635,11636,11637,11638, #11552
+11639,11640,11641,11642,11643,11644,11645,11646,11647,11648,11649,11650,11651,11652,11653,11654, #11568
+11655,11656,11657,11658,11659,11660,11661,11662,11663,11664,11665,11666,11667,11668,11669,11670, #11584
+11671,11672,11673,11674,4968,11675,11676,11677,11678,11679,11680,11681,11682,11683,11684,11685, #11600
+11686,11687,11688,11689,11690,11691,11692,11693,3809,11694,11695,11696,11697,11698,11699,11700, #11616
+11701,11702,11703,11704,11705,11706,11707,11708,11709,11710,11711,11712,11713,11714,11715,11716, #11632
+11717,11718,3553,11719,11720,11721,11722,11723,11724,11725,11726,11727,11728,11729,11730,4969, #11648
+11731,11732,11733,11734,11735,11736,11737,11738,11739,11740,4492,11741,11742,11743,11744,11745, #11664
+11746,11747,11748,11749,11750,11751,11752,4970,11753,11754,11755,11756,11757,11758,11759,11760, #11680
+11761,11762,11763,11764,11765,11766,11767,11768,11769,11770,11771,11772,11773,11774,11775,11776, #11696
+11777,11778,11779,11780,11781,11782,11783,11784,11785,11786,11787,11788,11789,11790,4971,11791, #11712
+11792,11793,11794,11795,11796,11797,4972,11798,11799,11800,11801,11802,11803,11804,11805,11806, #11728
+11807,11808,11809,11810,4973,11811,11812,11813,11814,11815,11816,11817,11818,11819,11820,11821, #11744
+11822,11823,11824,11825,11826,11827,11828,11829,11830,11831,11832,11833,11834,3680,3810,11835, #11760
+11836,4974,11837,11838,11839,11840,11841,11842,11843,11844,11845,11846,11847,11848,11849,11850, #11776
+11851,11852,11853,11854,11855,11856,11857,11858,11859,11860,11861,11862,11863,11864,11865,11866, #11792
+11867,11868,11869,11870,11871,11872,11873,11874,11875,11876,11877,11878,11879,11880,11881,11882, #11808
+11883,11884,4493,11885,11886,11887,11888,11889,11890,11891,11892,11893,11894,11895,11896,11897, #11824
+11898,11899,11900,11901,11902,11903,11904,11905,11906,11907,11908,11909,11910,11911,11912,11913, #11840
+11914,11915,4975,11916,11917,11918,11919,11920,11921,11922,11923,11924,11925,11926,11927,11928, #11856
+11929,11930,11931,11932,11933,11934,11935,11936,11937,11938,11939,11940,11941,11942,11943,11944, #11872
+11945,11946,11947,11948,11949,4976,11950,11951,11952,11953,11954,11955,11956,11957,11958,11959, #11888
+11960,11961,11962,11963,11964,11965,11966,11967,11968,11969,11970,11971,11972,11973,11974,11975, #11904
+11976,11977,11978,11979,11980,11981,11982,11983,11984,11985,11986,11987,4196,11988,11989,11990, #11920
+11991,11992,4977,11993,11994,11995,11996,11997,11998,11999,12000,12001,12002,12003,12004,12005, #11936
+12006,12007,12008,12009,12010,12011,12012,12013,12014,12015,12016,12017,12018,12019,12020,12021, #11952
+12022,12023,12024,12025,12026,12027,12028,12029,12030,12031,12032,12033,12034,12035,12036,12037, #11968
+12038,12039,12040,12041,12042,12043,12044,12045,12046,12047,12048,12049,12050,12051,12052,12053, #11984
+12054,12055,12056,12057,12058,12059,12060,12061,4978,12062,12063,12064,12065,12066,12067,12068, #12000
+12069,12070,12071,12072,12073,12074,12075,12076,12077,12078,12079,12080,12081,12082,12083,12084, #12016
+12085,12086,12087,12088,12089,12090,12091,12092,12093,12094,12095,12096,12097,12098,12099,12100, #12032
+12101,12102,12103,12104,12105,12106,12107,12108,12109,12110,12111,12112,12113,12114,12115,12116, #12048
+12117,12118,12119,12120,12121,12122,12123,4979,12124,12125,12126,12127,12128,4197,12129,12130, #12064
+12131,12132,12133,12134,12135,12136,12137,12138,12139,12140,12141,12142,12143,12144,12145,12146, #12080
+12147,12148,12149,12150,12151,12152,12153,12154,4980,12155,12156,12157,12158,12159,12160,4494, #12096
+12161,12162,12163,12164,3811,12165,12166,12167,12168,12169,4495,12170,12171,4496,12172,12173, #12112
+12174,12175,12176,3812,12177,12178,12179,12180,12181,12182,12183,12184,12185,12186,12187,12188, #12128
+12189,12190,12191,12192,12193,12194,12195,12196,12197,12198,12199,12200,12201,12202,12203,12204, #12144
+12205,12206,12207,12208,12209,12210,12211,12212,12213,12214,12215,12216,12217,12218,12219,12220, #12160
+12221,4981,12222,12223,12224,12225,12226,12227,12228,12229,12230,12231,12232,12233,12234,12235, #12176
+4982,12236,12237,12238,12239,12240,12241,12242,12243,12244,12245,4983,12246,12247,12248,12249, #12192
+4984,12250,12251,12252,12253,12254,12255,12256,12257,12258,12259,12260,12261,12262,12263,12264, #12208
+4985,12265,4497,12266,12267,12268,12269,12270,12271,12272,12273,12274,12275,12276,12277,12278, #12224
+12279,12280,12281,12282,12283,12284,12285,12286,12287,4986,12288,12289,12290,12291,12292,12293, #12240
+12294,12295,12296,2473,12297,12298,12299,12300,12301,12302,12303,12304,12305,12306,12307,12308, #12256
+12309,12310,12311,12312,12313,12314,12315,12316,12317,12318,12319,3963,12320,12321,12322,12323, #12272
+12324,12325,12326,12327,12328,12329,12330,12331,12332,4987,12333,12334,12335,12336,12337,12338, #12288
+12339,12340,12341,12342,12343,12344,12345,12346,12347,12348,12349,12350,12351,12352,12353,12354, #12304
+12355,12356,12357,12358,12359,3964,12360,12361,12362,12363,12364,12365,12366,12367,12368,12369, #12320
+12370,3965,12371,12372,12373,12374,12375,12376,12377,12378,12379,12380,12381,12382,12383,12384, #12336
+12385,12386,12387,12388,12389,12390,12391,12392,12393,12394,12395,12396,12397,12398,12399,12400, #12352
+12401,12402,12403,12404,12405,12406,12407,12408,4988,12409,12410,12411,12412,12413,12414,12415, #12368
+12416,12417,12418,12419,12420,12421,12422,12423,12424,12425,12426,12427,12428,12429,12430,12431, #12384
+12432,12433,12434,12435,12436,12437,12438,3554,12439,12440,12441,12442,12443,12444,12445,12446, #12400
+12447,12448,12449,12450,12451,12452,12453,12454,12455,12456,12457,12458,12459,12460,12461,12462, #12416
+12463,12464,4989,12465,12466,12467,12468,12469,12470,12471,12472,12473,12474,12475,12476,12477, #12432
+12478,12479,12480,4990,12481,12482,12483,12484,12485,12486,12487,12488,12489,4498,12490,12491, #12448
+12492,12493,12494,12495,12496,12497,12498,12499,12500,12501,12502,12503,12504,12505,12506,12507, #12464
+12508,12509,12510,12511,12512,12513,12514,12515,12516,12517,12518,12519,12520,12521,12522,12523, #12480
+12524,12525,12526,12527,12528,12529,12530,12531,12532,12533,12534,12535,12536,12537,12538,12539, #12496
+12540,12541,12542,12543,12544,12545,12546,12547,12548,12549,12550,12551,4991,12552,12553,12554, #12512
+12555,12556,12557,12558,12559,12560,12561,12562,12563,12564,12565,12566,12567,12568,12569,12570, #12528
+12571,12572,12573,12574,12575,12576,12577,12578,3036,12579,12580,12581,12582,12583,3966,12584, #12544
+12585,12586,12587,12588,12589,12590,12591,12592,12593,12594,12595,12596,12597,12598,12599,12600, #12560
+12601,12602,12603,12604,12605,12606,12607,12608,12609,12610,12611,12612,12613,12614,12615,12616, #12576
+12617,12618,12619,12620,12621,12622,12623,12624,12625,12626,12627,12628,12629,12630,12631,12632, #12592
+12633,12634,12635,12636,12637,12638,12639,12640,12641,12642,12643,12644,12645,12646,4499,12647, #12608
+12648,12649,12650,12651,12652,12653,12654,12655,12656,12657,12658,12659,12660,12661,12662,12663, #12624
+12664,12665,12666,12667,12668,12669,12670,12671,12672,12673,12674,12675,12676,12677,12678,12679, #12640
+12680,12681,12682,12683,12684,12685,12686,12687,12688,12689,12690,12691,12692,12693,12694,12695, #12656
+12696,12697,12698,4992,12699,12700,12701,12702,12703,12704,12705,12706,12707,12708,12709,12710, #12672
+12711,12712,12713,12714,12715,12716,12717,12718,12719,12720,12721,12722,12723,12724,12725,12726, #12688
+12727,12728,12729,12730,12731,12732,12733,12734,12735,12736,12737,12738,12739,12740,12741,12742, #12704
+12743,12744,12745,12746,12747,12748,12749,12750,12751,12752,12753,12754,12755,12756,12757,12758, #12720
+12759,12760,12761,12762,12763,12764,12765,12766,12767,12768,12769,12770,12771,12772,12773,12774, #12736
+12775,12776,12777,12778,4993,2175,12779,12780,12781,12782,12783,12784,12785,12786,4500,12787, #12752
+12788,12789,12790,12791,12792,12793,12794,12795,12796,12797,12798,12799,12800,12801,12802,12803, #12768
+12804,12805,12806,12807,12808,12809,12810,12811,12812,12813,12814,12815,12816,12817,12818,12819, #12784
+12820,12821,12822,12823,12824,12825,12826,4198,3967,12827,12828,12829,12830,12831,12832,12833, #12800
+12834,12835,12836,12837,12838,12839,12840,12841,12842,12843,12844,12845,12846,12847,12848,12849, #12816
+12850,12851,12852,12853,12854,12855,12856,12857,12858,12859,12860,12861,4199,12862,12863,12864, #12832
+12865,12866,12867,12868,12869,12870,12871,12872,12873,12874,12875,12876,12877,12878,12879,12880, #12848
+12881,12882,12883,12884,12885,12886,12887,4501,12888,12889,12890,12891,12892,12893,12894,12895, #12864
+12896,12897,12898,12899,12900,12901,12902,12903,12904,12905,12906,12907,12908,12909,12910,12911, #12880
+12912,4994,12913,12914,12915,12916,12917,12918,12919,12920,12921,12922,12923,12924,12925,12926, #12896
+12927,12928,12929,12930,12931,12932,12933,12934,12935,12936,12937,12938,12939,12940,12941,12942, #12912
+12943,12944,12945,12946,12947,12948,12949,12950,12951,12952,12953,12954,12955,12956,1772,12957, #12928
+12958,12959,12960,12961,12962,12963,12964,12965,12966,12967,12968,12969,12970,12971,12972,12973, #12944
+12974,12975,12976,12977,12978,12979,12980,12981,12982,12983,12984,12985,12986,12987,12988,12989, #12960
+12990,12991,12992,12993,12994,12995,12996,12997,4502,12998,4503,12999,13000,13001,13002,13003, #12976
+4504,13004,13005,13006,13007,13008,13009,13010,13011,13012,13013,13014,13015,13016,13017,13018, #12992
+13019,13020,13021,13022,13023,13024,13025,13026,13027,13028,13029,3449,13030,13031,13032,13033, #13008
+13034,13035,13036,13037,13038,13039,13040,13041,13042,13043,13044,13045,13046,13047,13048,13049, #13024
+13050,13051,13052,13053,13054,13055,13056,13057,13058,13059,13060,13061,13062,13063,13064,13065, #13040
+13066,13067,13068,13069,13070,13071,13072,13073,13074,13075,13076,13077,13078,13079,13080,13081, #13056
+13082,13083,13084,13085,13086,13087,13088,13089,13090,13091,13092,13093,13094,13095,13096,13097, #13072
+13098,13099,13100,13101,13102,13103,13104,13105,13106,13107,13108,13109,13110,13111,13112,13113, #13088
+13114,13115,13116,13117,13118,3968,13119,4995,13120,13121,13122,13123,13124,13125,13126,13127, #13104
+4505,13128,13129,13130,13131,13132,13133,13134,4996,4506,13135,13136,13137,13138,13139,4997, #13120
+13140,13141,13142,13143,13144,13145,13146,13147,13148,13149,13150,13151,13152,13153,13154,13155, #13136
+13156,13157,13158,13159,4998,13160,13161,13162,13163,13164,13165,13166,13167,13168,13169,13170, #13152
+13171,13172,13173,13174,13175,13176,4999,13177,13178,13179,13180,13181,13182,13183,13184,13185, #13168
+13186,13187,13188,13189,13190,13191,13192,13193,13194,13195,13196,13197,13198,13199,13200,13201, #13184
+13202,13203,13204,13205,13206,5000,13207,13208,13209,13210,13211,13212,13213,13214,13215,13216, #13200
+13217,13218,13219,13220,13221,13222,13223,13224,13225,13226,13227,4200,5001,13228,13229,13230, #13216
+13231,13232,13233,13234,13235,13236,13237,13238,13239,13240,3969,13241,13242,13243,13244,3970, #13232
+13245,13246,13247,13248,13249,13250,13251,13252,13253,13254,13255,13256,13257,13258,13259,13260, #13248
+13261,13262,13263,13264,13265,13266,13267,13268,3450,13269,13270,13271,13272,13273,13274,13275, #13264
+13276,5002,13277,13278,13279,13280,13281,13282,13283,13284,13285,13286,13287,13288,13289,13290, #13280
+13291,13292,13293,13294,13295,13296,13297,13298,13299,13300,13301,13302,3813,13303,13304,13305, #13296
+13306,13307,13308,13309,13310,13311,13312,13313,13314,13315,13316,13317,13318,13319,13320,13321, #13312
+13322,13323,13324,13325,13326,13327,13328,4507,13329,13330,13331,13332,13333,13334,13335,13336, #13328
+13337,13338,13339,13340,13341,5003,13342,13343,13344,13345,13346,13347,13348,13349,13350,13351, #13344
+13352,13353,13354,13355,13356,13357,13358,13359,13360,13361,13362,13363,13364,13365,13366,13367, #13360
+5004,13368,13369,13370,13371,13372,13373,13374,13375,13376,13377,13378,13379,13380,13381,13382, #13376
+13383,13384,13385,13386,13387,13388,13389,13390,13391,13392,13393,13394,13395,13396,13397,13398, #13392
+13399,13400,13401,13402,13403,13404,13405,13406,13407,13408,13409,13410,13411,13412,13413,13414, #13408
+13415,13416,13417,13418,13419,13420,13421,13422,13423,13424,13425,13426,13427,13428,13429,13430, #13424
+13431,13432,4508,13433,13434,13435,4201,13436,13437,13438,13439,13440,13441,13442,13443,13444, #13440
+13445,13446,13447,13448,13449,13450,13451,13452,13453,13454,13455,13456,13457,5005,13458,13459, #13456
+13460,13461,13462,13463,13464,13465,13466,13467,13468,13469,13470,4509,13471,13472,13473,13474, #13472
+13475,13476,13477,13478,13479,13480,13481,13482,13483,13484,13485,13486,13487,13488,13489,13490, #13488
+13491,13492,13493,13494,13495,13496,13497,13498,13499,13500,13501,13502,13503,13504,13505,13506, #13504
+13507,13508,13509,13510,13511,13512,13513,13514,13515,13516,13517,13518,13519,13520,13521,13522, #13520
+13523,13524,13525,13526,13527,13528,13529,13530,13531,13532,13533,13534,13535,13536,13537,13538, #13536
+13539,13540,13541,13542,13543,13544,13545,13546,13547,13548,13549,13550,13551,13552,13553,13554, #13552
+13555,13556,13557,13558,13559,13560,13561,13562,13563,13564,13565,13566,13567,13568,13569,13570, #13568
+13571,13572,13573,13574,13575,13576,13577,13578,13579,13580,13581,13582,13583,13584,13585,13586, #13584
+13587,13588,13589,13590,13591,13592,13593,13594,13595,13596,13597,13598,13599,13600,13601,13602, #13600
+13603,13604,13605,13606,13607,13608,13609,13610,13611,13612,13613,13614,13615,13616,13617,13618, #13616
+13619,13620,13621,13622,13623,13624,13625,13626,13627,13628,13629,13630,13631,13632,13633,13634, #13632
+13635,13636,13637,13638,13639,13640,13641,13642,5006,13643,13644,13645,13646,13647,13648,13649, #13648
+13650,13651,5007,13652,13653,13654,13655,13656,13657,13658,13659,13660,13661,13662,13663,13664, #13664
+13665,13666,13667,13668,13669,13670,13671,13672,13673,13674,13675,13676,13677,13678,13679,13680, #13680
+13681,13682,13683,13684,13685,13686,13687,13688,13689,13690,13691,13692,13693,13694,13695,13696, #13696
+13697,13698,13699,13700,13701,13702,13703,13704,13705,13706,13707,13708,13709,13710,13711,13712, #13712
+13713,13714,13715,13716,13717,13718,13719,13720,13721,13722,13723,13724,13725,13726,13727,13728, #13728
+13729,13730,13731,13732,13733,13734,13735,13736,13737,13738,13739,13740,13741,13742,13743,13744, #13744
+13745,13746,13747,13748,13749,13750,13751,13752,13753,13754,13755,13756,13757,13758,13759,13760, #13760
+13761,13762,13763,13764,13765,13766,13767,13768,13769,13770,13771,13772,13773,13774,3273,13775, #13776
+13776,13777,13778,13779,13780,13781,13782,13783,13784,13785,13786,13787,13788,13789,13790,13791, #13792
+13792,13793,13794,13795,13796,13797,13798,13799,13800,13801,13802,13803,13804,13805,13806,13807, #13808
+13808,13809,13810,13811,13812,13813,13814,13815,13816,13817,13818,13819,13820,13821,13822,13823, #13824
+13824,13825,13826,13827,13828,13829,13830,13831,13832,13833,13834,13835,13836,13837,13838,13839, #13840
+13840,13841,13842,13843,13844,13845,13846,13847,13848,13849,13850,13851,13852,13853,13854,13855, #13856
+13856,13857,13858,13859,13860,13861,13862,13863,13864,13865,13866,13867,13868,13869,13870,13871, #13872
+13872,13873,13874,13875,13876,13877,13878,13879,13880,13881,13882,13883,13884,13885,13886,13887, #13888
+13888,13889,13890,13891,13892,13893,13894,13895,13896,13897,13898,13899,13900,13901,13902,13903, #13904
+13904,13905,13906,13907,13908,13909,13910,13911,13912,13913,13914,13915,13916,13917,13918,13919, #13920
+13920,13921,13922,13923,13924,13925,13926,13927,13928,13929,13930,13931,13932,13933,13934,13935, #13936
+13936,13937,13938,13939,13940,13941,13942,13943,13944,13945,13946,13947,13948,13949,13950,13951, #13952
+13952,13953,13954,13955,13956,13957,13958,13959,13960,13961,13962,13963,13964,13965,13966,13967, #13968
+13968,13969,13970,13971,13972) #13973
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py
new file mode 100644
index 0000000..becce81
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py
@@ -0,0 +1,42 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import Big5DistributionAnalysis
+from .mbcssm import Big5SMModel
+
+
+class Big5Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(Big5SMModel)
+        self._mDistributionAnalyzer = Big5DistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "Big5"
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py
new file mode 100644
index 0000000..ffe892f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python
+"""
+Script which takes one or more file paths and reports on their detected
+encodings
+
+Example::
+
+    % chardetect somefile someotherfile
+    somefile: windows-1252 with confidence 0.5
+    someotherfile: ascii with confidence 1.0
+
+If no paths are provided, it takes its input from stdin.
+
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+import argparse
+import sys
+from io import open
+
+from chardet import __version__
+from chardet.universaldetector import UniversalDetector
+
+
+def description_of(lines, name='stdin'):
+    """
+    Return a string describing the probable encoding of a file or
+    list of strings.
+
+    :param lines: The lines to get the encoding of.
+    :type lines: Iterable of bytes
+    :param name: Name of file or collection of lines
+    :type name: str
+    """
+    u = UniversalDetector()
+    for line in lines:
+        u.feed(line)
+    u.close()
+    result = u.result
+    if result['encoding']:
+        return '{0}: {1} with confidence {2}'.format(name, result['encoding'],
+                                                     result['confidence'])
+    else:
+        return '{0}: no result'.format(name)
+
+
+def main(argv=None):
+    '''
+    Handles command line arguments and gets things started.
+
+    :param argv: List of arguments, as if specified on the command-line.
+                 If None, ``sys.argv[1:]`` is used instead.
+    :type argv: list of str
+    '''
+    # Get command line arguments
+    parser = argparse.ArgumentParser(
+        description="Takes one or more file paths and reports their detected \
+                     encodings",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+        conflict_handler='resolve')
+    parser.add_argument('input',
+                        help='File whose encoding we would like to determine.',
+                        type=argparse.FileType('rb'), nargs='*',
+                        default=[sys.stdin])
+    parser.add_argument('--version', action='version',
+                        version='%(prog)s {0}'.format(__version__))
+    args = parser.parse_args(argv)
+
+    for f in args.input:
+        if f.isatty():
+            print("You are running chardetect interactively. Press " +
+                  "CTRL-D twice at the start of a blank line to signal the " +
+                  "end of your input. If you want help, run chardetect " +
+                  "--help\n", file=sys.stderr)
+        print(description_of(f, f.name))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py
new file mode 100644
index 0000000..4e64a00
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py
@@ -0,0 +1,231 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .euctwfreq import (EUCTWCharToFreqOrder, EUCTW_TABLE_SIZE,
+                        EUCTW_TYPICAL_DISTRIBUTION_RATIO)
+from .euckrfreq import (EUCKRCharToFreqOrder, EUCKR_TABLE_SIZE,
+                        EUCKR_TYPICAL_DISTRIBUTION_RATIO)
+from .gb2312freq import (GB2312CharToFreqOrder, GB2312_TABLE_SIZE,
+                         GB2312_TYPICAL_DISTRIBUTION_RATIO)
+from .big5freq import (Big5CharToFreqOrder, BIG5_TABLE_SIZE,
+                       BIG5_TYPICAL_DISTRIBUTION_RATIO)
+from .jisfreq import (JISCharToFreqOrder, JIS_TABLE_SIZE,
+                      JIS_TYPICAL_DISTRIBUTION_RATIO)
+from .compat import wrap_ord
+
+ENOUGH_DATA_THRESHOLD = 1024
+SURE_YES = 0.99
+SURE_NO = 0.01
+MINIMUM_DATA_THRESHOLD = 3
+
+
+class CharDistributionAnalysis:
+    def __init__(self):
+        # Mapping table to get frequency order from char order (get from
+        # GetOrder())
+        self._mCharToFreqOrder = None
+        self._mTableSize = None  # Size of above table
+        # This is a constant value which varies from language to language,
+        # used in calculating confidence.  See
+        # http://www.mozilla.org/projects/intl/UniversalCharsetDetection.html
+        # for further detail.
+        self._mTypicalDistributionRatio = None
+        self.reset()
+
+    def reset(self):
+        """reset analyser, clear any state"""
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._mDone = False
+        self._mTotalChars = 0  # Total characters encountered
+        # The number of characters whose frequency order is less than 512
+        self._mFreqChars = 0
+
+    def feed(self, aBuf, aCharLen):
+        """feed a character with known length"""
+        if aCharLen == 2:
+            # we only care about 2-bytes character in our distribution analysis
+            order = self.get_order(aBuf)
+        else:
+            order = -1
+        if order >= 0:
+            self._mTotalChars += 1
+            # order is valid
+            if order < self._mTableSize:
+                if 512 > self._mCharToFreqOrder[order]:
+                    self._mFreqChars += 1
+
+    def get_confidence(self):
+        """return confidence based on existing data"""
+        # if we didn't receive any character in our consideration range,
+        # return negative answer
+        if self._mTotalChars <= 0 or self._mFreqChars <= MINIMUM_DATA_THRESHOLD:
+            return SURE_NO
+
+        if self._mTotalChars != self._mFreqChars:
+            r = (self._mFreqChars / ((self._mTotalChars - self._mFreqChars)
+                 * self._mTypicalDistributionRatio))
+            if r < SURE_YES:
+                return r
+
+        # normalize confidence (we don't want to be 100% sure)
+        return SURE_YES
+
+    def got_enough_data(self):
+        # It is not necessary to receive all data to draw conclusion.
+        # For charset detection, certain amount of data is enough
+        return self._mTotalChars > ENOUGH_DATA_THRESHOLD
+
+    def get_order(self, aBuf):
+        # We do not handle characters based on the original encoding string,
+        # but convert this encoding string to a number, here called order.
+        # This allows multiple encodings of a language to share one frequency
+        # table.
+        return -1
+
+
+class EUCTWDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = EUCTWCharToFreqOrder
+        self._mTableSize = EUCTW_TABLE_SIZE
+        self._mTypicalDistributionRatio = EUCTW_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-TW encoding, we are interested
+        #   first  byte range: 0xc4 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = wrap_ord(aBuf[0])
+        if first_char >= 0xC4:
+            return 94 * (first_char - 0xC4) + wrap_ord(aBuf[1]) - 0xA1
+        else:
+            return -1
+
+
+class EUCKRDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = EUCKRCharToFreqOrder
+        self._mTableSize = EUCKR_TABLE_SIZE
+        self._mTypicalDistributionRatio = EUCKR_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-KR encoding, we are interested
+        #   first  byte range: 0xb0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = wrap_ord(aBuf[0])
+        if first_char >= 0xB0:
+            return 94 * (first_char - 0xB0) + wrap_ord(aBuf[1]) - 0xA1
+        else:
+            return -1
+
+
+class GB2312DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = GB2312CharToFreqOrder
+        self._mTableSize = GB2312_TABLE_SIZE
+        self._mTypicalDistributionRatio = GB2312_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for GB2312 encoding, we are interested
+        #  first  byte range: 0xb0 -- 0xfe
+        #  second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if (first_char >= 0xB0) and (second_char >= 0xA1):
+            return 94 * (first_char - 0xB0) + second_char - 0xA1
+        else:
+            return -1
+
+
+class Big5DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = Big5CharToFreqOrder
+        self._mTableSize = BIG5_TABLE_SIZE
+        self._mTypicalDistributionRatio = BIG5_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for big5 encoding, we are interested
+        #   first  byte range: 0xa4 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e , 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if first_char >= 0xA4:
+            if second_char >= 0xA1:
+                return 157 * (first_char - 0xA4) + second_char - 0xA1 + 63
+            else:
+                return 157 * (first_char - 0xA4) + second_char - 0x40
+        else:
+            return -1
+
+
+class SJISDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = JISCharToFreqOrder
+        self._mTableSize = JIS_TABLE_SIZE
+        self._mTypicalDistributionRatio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for sjis encoding, we are interested
+        #   first  byte range: 0x81 -- 0x9f , 0xe0 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e,  0x81 -- oxfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if (first_char >= 0x81) and (first_char <= 0x9F):
+            order = 188 * (first_char - 0x81)
+        elif (first_char >= 0xE0) and (first_char <= 0xEF):
+            order = 188 * (first_char - 0xE0 + 31)
+        else:
+            return -1
+        order = order + second_char - 0x40
+        if second_char > 0x7F:
+            order = -1
+        return order
+
+
+class EUCJPDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = JISCharToFreqOrder
+        self._mTableSize = JIS_TABLE_SIZE
+        self._mTypicalDistributionRatio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-JP encoding, we are interested
+        #   first  byte range: 0xa0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        char = wrap_ord(aBuf[0])
+        if char >= 0xA0:
+            return 94 * (char - 0xA1) + wrap_ord(aBuf[1]) - 0xa1
+        else:
+            return -1
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py
new file mode 100644
index 0000000..85e7a1c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py
@@ -0,0 +1,106 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+# 
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+# 
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import sys
+from .charsetprober import CharSetProber
+
+
+class CharSetGroupProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mActiveNum = 0
+        self._mProbers = []
+        self._mBestGuessProber = None
+
+    def reset(self):
+        CharSetProber.reset(self)
+        self._mActiveNum = 0
+        for prober in self._mProbers:
+            if prober:
+                prober.reset()
+                prober.active = True
+                self._mActiveNum += 1
+        self._mBestGuessProber = None
+
+    def get_charset_name(self):
+        if not self._mBestGuessProber:
+            self.get_confidence()
+            if not self._mBestGuessProber:
+                return None
+#                self._mBestGuessProber = self._mProbers[0]
+        return self._mBestGuessProber.get_charset_name()
+
+    def feed(self, aBuf):
+        for prober in self._mProbers:
+            if not prober:
+                continue
+            if not prober.active:
+                continue
+            st = prober.feed(aBuf)
+            if not st:
+                continue
+            if st == constants.eFoundIt:
+                self._mBestGuessProber = prober
+                return self.get_state()
+            elif st == constants.eNotMe:
+                prober.active = False
+                self._mActiveNum -= 1
+                if self._mActiveNum <= 0:
+                    self._mState = constants.eNotMe
+                    return self.get_state()
+        return self.get_state()
+
+    def get_confidence(self):
+        st = self.get_state()
+        if st == constants.eFoundIt:
+            return 0.99
+        elif st == constants.eNotMe:
+            return 0.01
+        bestConf = 0.0
+        self._mBestGuessProber = None
+        for prober in self._mProbers:
+            if not prober:
+                continue
+            if not prober.active:
+                if constants._debug:
+                    sys.stderr.write(prober.get_charset_name()
+                                     + ' not active\n')
+                continue
+            cf = prober.get_confidence()
+            if constants._debug:
+                sys.stderr.write('%s confidence = %s\n' %
+                                 (prober.get_charset_name(), cf))
+            if bestConf < cf:
+                bestConf = cf
+                self._mBestGuessProber = prober
+        if not self._mBestGuessProber:
+            return 0.0
+        return bestConf
+#        else:
+#            self._mBestGuessProber = self._mProbers[0]
+#            return self._mBestGuessProber.get_confidence()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py
new file mode 100644
index 0000000..9758171
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py
@@ -0,0 +1,62 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import re
+
+
+class CharSetProber:
+    def __init__(self):
+        pass
+
+    def reset(self):
+        self._mState = constants.eDetecting
+
+    def get_charset_name(self):
+        return None
+
+    def feed(self, aBuf):
+        pass
+
+    def get_state(self):
+        return self._mState
+
+    def get_confidence(self):
+        return 0.0
+
+    def filter_high_bit_only(self, aBuf):
+        aBuf = re.sub(b'([\x00-\x7F])+', b' ', aBuf)
+        return aBuf
+
+    def filter_without_english_letters(self, aBuf):
+        aBuf = re.sub(b'([A-Za-z])+', b' ', aBuf)
+        return aBuf
+
+    def filter_with_english_letters(self, aBuf):
+        # TODO
+        return aBuf
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py
new file mode 100644
index 0000000..8dd8c91
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py
@@ -0,0 +1,61 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart
+from .compat import wrap_ord
+
+
+class CodingStateMachine:
+    def __init__(self, sm):
+        self._mModel = sm
+        self._mCurrentBytePos = 0
+        self._mCurrentCharLen = 0
+        self.reset()
+
+    def reset(self):
+        self._mCurrentState = eStart
+
+    def next_state(self, c):
+        # for each byte we get its class
+        # if it is first byte, we also get byte length
+        # PY3K: aBuf is a byte stream, so c is an int, not a byte
+        byteCls = self._mModel['classTable'][wrap_ord(c)]
+        if self._mCurrentState == eStart:
+            self._mCurrentBytePos = 0
+            self._mCurrentCharLen = self._mModel['charLenTable'][byteCls]
+        # from byte's class and stateTable, we get its next state
+        curr_state = (self._mCurrentState * self._mModel['classFactor']
+                      + byteCls)
+        self._mCurrentState = self._mModel['stateTable'][curr_state]
+        self._mCurrentBytePos += 1
+        return self._mCurrentState
+
+    def get_current_charlen(self):
+        return self._mCurrentCharLen
+
+    def get_coding_state_machine(self):
+        return self._mModel['name']
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py
new file mode 100644
index 0000000..d9e30ad
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py
@@ -0,0 +1,34 @@
+######################## BEGIN LICENSE BLOCK ########################
+# Contributor(s):
+#   Ian Cordasco - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+
+
+if sys.version_info < (3, 0):
+    base_str = (str, unicode)
+else:
+    base_str = (bytes, str)
+
+
+def wrap_ord(a):
+    if sys.version_info < (3, 0) and isinstance(a, base_str):
+        return ord(a)
+    else:
+        return a
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py
new file mode 100644
index 0000000..e4d148b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py
@@ -0,0 +1,39 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+_debug = 0
+
+eDetecting = 0
+eFoundIt = 1
+eNotMe = 2
+
+eStart = 0
+eError = 1
+eItsMe = 2
+
+SHORTCUT_THRESHOLD = 0.95
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py
new file mode 100644
index 0000000..ff4272f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py
@@ -0,0 +1,44 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCKRDistributionAnalysis
+from .mbcssm import CP949SMModel
+
+
+class CP949Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(CP949SMModel)
+        # NOTE: CP949 is a superset of EUC-KR, so the distribution should be
+        #       not different.
+        self._mDistributionAnalyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "CP949"
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py
new file mode 100644
index 0000000..80a844f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py
@@ -0,0 +1,86 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+from .escsm import (HZSMModel, ISO2022CNSMModel, ISO2022JPSMModel,
+                    ISO2022KRSMModel)
+from .charsetprober import CharSetProber
+from .codingstatemachine import CodingStateMachine
+from .compat import wrap_ord
+
+
+class EscCharSetProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mCodingSM = [
+            CodingStateMachine(HZSMModel),
+            CodingStateMachine(ISO2022CNSMModel),
+            CodingStateMachine(ISO2022JPSMModel),
+            CodingStateMachine(ISO2022KRSMModel)
+        ]
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        for codingSM in self._mCodingSM:
+            if not codingSM:
+                continue
+            codingSM.active = True
+            codingSM.reset()
+        self._mActiveSM = len(self._mCodingSM)
+        self._mDetectedCharset = None
+
+    def get_charset_name(self):
+        return self._mDetectedCharset
+
+    def get_confidence(self):
+        if self._mDetectedCharset:
+            return 0.99
+        else:
+            return 0.00
+
+    def feed(self, aBuf):
+        for c in aBuf:
+            # PY3K: aBuf is a byte array, so c is an int, not a byte
+            for codingSM in self._mCodingSM:
+                if not codingSM:
+                    continue
+                if not codingSM.active:
+                    continue
+                codingState = codingSM.next_state(wrap_ord(c))
+                if codingState == constants.eError:
+                    codingSM.active = False
+                    self._mActiveSM -= 1
+                    if self._mActiveSM <= 0:
+                        self._mState = constants.eNotMe
+                        return self.get_state()
+                elif codingState == constants.eItsMe:
+                    self._mState = constants.eFoundIt
+                    self._mDetectedCharset = codingSM.get_coding_state_machine()  # nopep8
+                    return self.get_state()
+
+        return self.get_state()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py
new file mode 100644
index 0000000..bd302b4
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py
@@ -0,0 +1,242 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart, eError, eItsMe
+
+HZ_cls = (
+1,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,0,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,4,0,5,2,0,  # 78 - 7f
+1,1,1,1,1,1,1,1,  # 80 - 87
+1,1,1,1,1,1,1,1,  # 88 - 8f
+1,1,1,1,1,1,1,1,  # 90 - 97
+1,1,1,1,1,1,1,1,  # 98 - 9f
+1,1,1,1,1,1,1,1,  # a0 - a7
+1,1,1,1,1,1,1,1,  # a8 - af
+1,1,1,1,1,1,1,1,  # b0 - b7
+1,1,1,1,1,1,1,1,  # b8 - bf
+1,1,1,1,1,1,1,1,  # c0 - c7
+1,1,1,1,1,1,1,1,  # c8 - cf
+1,1,1,1,1,1,1,1,  # d0 - d7
+1,1,1,1,1,1,1,1,  # d8 - df
+1,1,1,1,1,1,1,1,  # e0 - e7
+1,1,1,1,1,1,1,1,  # e8 - ef
+1,1,1,1,1,1,1,1,  # f0 - f7
+1,1,1,1,1,1,1,1,  # f8 - ff
+)
+
+HZ_st = (
+eStart,eError,     3,eStart,eStart,eStart,eError,eError,# 00-07
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 08-0f
+eItsMe,eItsMe,eError,eError,eStart,eStart,     4,eError,# 10-17
+     5,eError,     6,eError,     5,     5,     4,eError,# 18-1f
+     4,eError,     4,     4,     4,eError,     4,eError,# 20-27
+     4,eItsMe,eStart,eStart,eStart,eStart,eStart,eStart,# 28-2f
+)
+
+HZCharLenTable = (0, 0, 0, 0, 0, 0)
+
+HZSMModel = {'classTable': HZ_cls,
+             'classFactor': 6,
+             'stateTable': HZ_st,
+             'charLenTable': HZCharLenTable,
+             'name': "HZ-GB-2312"}
+
+ISO2022CN_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,3,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,4,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022CN_st = (
+eStart,     3,eError,eStart,eStart,eStart,eStart,eStart,# 00-07
+eStart,eError,eError,eError,eError,eError,eError,eError,# 08-0f
+eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,# 10-17
+eItsMe,eItsMe,eItsMe,eError,eError,eError,     4,eError,# 18-1f
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 20-27
+     5,     6,eError,eError,eError,eError,eError,eError,# 28-2f
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 30-37
+eError,eError,eError,eError,eError,eItsMe,eError,eStart,# 38-3f
+)
+
+ISO2022CNCharLenTable = (0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022CNSMModel = {'classTable': ISO2022CN_cls,
+                    'classFactor': 9,
+                    'stateTable': ISO2022CN_st,
+                    'charLenTable': ISO2022CNCharLenTable,
+                    'name': "ISO-2022-CN"}
+
+ISO2022JP_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,2,2,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,7,0,0,0,  # 20 - 27
+3,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+6,0,4,0,8,0,0,0,  # 40 - 47
+0,9,5,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022JP_st = (
+eStart,     3,eError,eStart,eStart,eStart,eStart,eStart,# 00-07
+eStart,eStart,eError,eError,eError,eError,eError,eError,# 08-0f
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 10-17
+eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,# 18-1f
+eError,     5,eError,eError,eError,     4,eError,eError,# 20-27
+eError,eError,eError,     6,eItsMe,eError,eItsMe,eError,# 28-2f
+eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,# 30-37
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 38-3f
+eError,eError,eError,eError,eItsMe,eError,eStart,eStart,# 40-47
+)
+
+ISO2022JPCharLenTable = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022JPSMModel = {'classTable': ISO2022JP_cls,
+                    'classFactor': 10,
+                    'stateTable': ISO2022JP_st,
+                    'charLenTable': ISO2022JPCharLenTable,
+                    'name': "ISO-2022-JP"}
+
+ISO2022KR_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,3,0,0,0,  # 20 - 27
+0,4,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,5,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022KR_st = (
+eStart,     3,eError,eStart,eStart,eStart,eError,eError,# 00-07
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 08-0f
+eItsMe,eItsMe,eError,eError,eError,     4,eError,eError,# 10-17
+eError,eError,eError,eError,     5,eError,eError,eError,# 18-1f
+eError,eError,eError,eItsMe,eStart,eStart,eStart,eStart,# 20-27
+)
+
+ISO2022KRCharLenTable = (0, 0, 0, 0, 0, 0)
+
+ISO2022KRSMModel = {'classTable': ISO2022KR_cls,
+                    'classFactor': 6,
+                    'stateTable': ISO2022KR_st,
+                    'charLenTable': ISO2022KRCharLenTable,
+                    'name': "ISO-2022-KR"}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py
new file mode 100644
index 0000000..8e64fdc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py
@@ -0,0 +1,90 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCJPDistributionAnalysis
+from .jpcntx import EUCJPContextAnalysis
+from .mbcssm import EUCJPSMModel
+
+
+class EUCJPProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCJPSMModel)
+        self._mDistributionAnalyzer = EUCJPDistributionAnalysis()
+        self._mContextAnalyzer = EUCJPContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        MultiByteCharSetProber.reset(self)
+        self._mContextAnalyzer.reset()
+
+    def get_charset_name(self):
+        return "EUC-JP"
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            # PY3K: aBuf is a byte array, so aBuf[i] is an int, not a byte
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mContextAnalyzer.feed(self._mLastChar, charLen)
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mContextAnalyzer.feed(aBuf[i - 1:i + 1], charLen)
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mContextAnalyzer.got_enough_data() and
+               (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        contxtCf = self._mContextAnalyzer.get_confidence()
+        distribCf = self._mDistributionAnalyzer.get_confidence()
+        return max(contxtCf, distribCf)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py
new file mode 100644
index 0000000..a179e4c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py
@@ -0,0 +1,596 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+
+# 128  --> 0.79
+# 256  --> 0.92
+# 512  --> 0.986
+# 1024 --> 0.99944
+# 2048 --> 0.99999
+#
+# Idea Distribution Ratio = 0.98653 / (1-0.98653) = 73.24
+# Random Distribution Ration = 512 / (2350-512) = 0.279.
+# 
+# Typical Distribution Ratio  
+
+EUCKR_TYPICAL_DISTRIBUTION_RATIO = 6.0
+
+EUCKR_TABLE_SIZE = 2352
+
+# Char to FreqOrder table , 
+EUCKRCharToFreqOrder = ( \
+  13, 130, 120,1396, 481,1719,1720, 328, 609, 212,1721, 707, 400, 299,1722,  87,
+1397,1723, 104, 536,1117,1203,1724,1267, 685,1268, 508,1725,1726,1727,1728,1398,
+1399,1729,1730,1731, 141, 621, 326,1057, 368,1732, 267, 488,  20,1733,1269,1734,
+ 945,1400,1735,  47, 904,1270,1736,1737, 773, 248,1738, 409, 313, 786, 429,1739,
+ 116, 987, 813,1401, 683,  75,1204, 145,1740,1741,1742,1743,  16, 847, 667, 622,
+ 708,1744,1745,1746, 966, 787, 304, 129,1747,  60, 820, 123, 676,1748,1749,1750,
+1751, 617,1752, 626,1753,1754,1755,1756, 653,1757,1758,1759,1760,1761,1762, 856,
+ 344,1763,1764,1765,1766,  89, 401, 418, 806, 905, 848,1767,1768,1769, 946,1205,
+ 709,1770,1118,1771, 241,1772,1773,1774,1271,1775, 569,1776, 999,1777,1778,1779,
+1780, 337, 751,1058,  28, 628, 254,1781, 177, 906, 270, 349, 891,1079,1782,  19,
+1783, 379,1784, 315,1785, 629, 754,1402, 559,1786, 636, 203,1206,1787, 710, 567,
+1788, 935, 814,1789,1790,1207, 766, 528,1791,1792,1208,1793,1794,1795,1796,1797,
+1403,1798,1799, 533,1059,1404,1405,1156,1406, 936, 884,1080,1800, 351,1801,1802,
+1803,1804,1805, 801,1806,1807,1808,1119,1809,1157, 714, 474,1407,1810, 298, 899,
+ 885,1811,1120, 802,1158,1812, 892,1813,1814,1408, 659,1815,1816,1121,1817,1818,
+1819,1820,1821,1822, 319,1823, 594, 545,1824, 815, 937,1209,1825,1826, 573,1409,
+1022,1827,1210,1828,1829,1830,1831,1832,1833, 556, 722, 807,1122,1060,1834, 697,
+1835, 900, 557, 715,1836,1410, 540,1411, 752,1159, 294, 597,1211, 976, 803, 770,
+1412,1837,1838,  39, 794,1413, 358,1839, 371, 925,1840, 453, 661, 788, 531, 723,
+ 544,1023,1081, 869,  91,1841, 392, 430, 790, 602,1414, 677,1082, 457,1415,1416,
+1842,1843, 475, 327,1024,1417, 795, 121,1844, 733, 403,1418,1845,1846,1847, 300,
+ 119, 711,1212, 627,1848,1272, 207,1849,1850, 796,1213, 382,1851, 519,1852,1083,
+ 893,1853,1854,1855, 367, 809, 487, 671,1856, 663,1857,1858, 956, 471, 306, 857,
+1859,1860,1160,1084,1861,1862,1863,1864,1865,1061,1866,1867,1868,1869,1870,1871,
+ 282,  96, 574,1872, 502,1085,1873,1214,1874, 907,1875,1876, 827, 977,1419,1420,
+1421, 268,1877,1422,1878,1879,1880, 308,1881,   2, 537,1882,1883,1215,1884,1885,
+ 127, 791,1886,1273,1423,1887,  34, 336, 404, 643,1888, 571, 654, 894, 840,1889,
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+ 103, 296, 439, 407, 506, 634, 990,1972,1973,1974,1975, 645,1976,1977,1978,1979,
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+ 423, 277, 234, 512, 226,  97, 289,  42, 167,1998, 201,1999,2000, 843, 836, 824,
+ 532, 338, 783,1090, 182, 576, 436,1438,1439, 527, 500,2001, 947, 889,2002,2003,
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+ 619, 688,2009, 829,2010,2011, 147,2012,  33, 948,2013,2014,  74, 224,2015,  61,
+ 191, 918, 399, 637,2016,1028,1130, 257, 902,2017,2018,2019,2020,2021,2022,2023,
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+  95, 782, 868,2504,2505,2506,2507,2508,2509, 134,1524,1074, 422,1525, 898,2510,
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+   3, 458,   9,  38,2588, 107, 110, 890, 209,  26, 737, 498,2589,1534,2590, 431,
+ 202,  88,1535, 356, 287,1107, 660,1149,2591, 381,1536, 986,1150, 445,1248,1151,
+ 974,2592,2593, 846,2594, 446, 953, 184,1249,1250, 727,2595, 923, 193, 883,2596,
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+2612,2613,2614, 233,2615, 833, 558, 931, 954,1251,2616,2617,1537, 546,2618,2619,
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+ 670,1190,2635,2636,2637,2638, 168,2639, 652, 873, 542,1054,1541,2640,2641,2642,  # 512, 256
+#Everything below is of no interest for detection purpose
+2643,2644,2645,2646,2647,2648,2649,2650,2651,2652,2653,2654,2655,2656,2657,2658,
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+8160,8161,8162,8163,8164,8165,8166,8167,8168,8169,8170,8171,8172,8173,8174,8175,
+8176,8177,8178,8179,8180,8181,8182,8183,8184,8185,8186,8187,8188,8189,8190,8191,
+8192,8193,8194,8195,8196,8197,8198,8199,8200,8201,8202,8203,8204,8205,8206,8207,
+8208,8209,8210,8211,8212,8213,8214,8215,8216,8217,8218,8219,8220,8221,8222,8223,
+8224,8225,8226,8227,8228,8229,8230,8231,8232,8233,8234,8235,8236,8237,8238,8239,
+8240,8241,8242,8243,8244,8245,8246,8247,8248,8249,8250,8251,8252,8253,8254,8255,
+8256,8257,8258,8259,8260,8261,8262,8263,8264,8265,8266,8267,8268,8269,8270,8271,
+8272,8273,8274,8275,8276,8277,8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,
+8288,8289,8290,8291,8292,8293,8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,
+8304,8305,8306,8307,8308,8309,8310,8311,8312,8313,8314,8315,8316,8317,8318,8319,
+8320,8321,8322,8323,8324,8325,8326,8327,8328,8329,8330,8331,8332,8333,8334,8335,
+8336,8337,8338,8339,8340,8341,8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,
+8352,8353,8354,8355,8356,8357,8358,8359,8360,8361,8362,8363,8364,8365,8366,8367,
+8368,8369,8370,8371,8372,8373,8374,8375,8376,8377,8378,8379,8380,8381,8382,8383,
+8384,8385,8386,8387,8388,8389,8390,8391,8392,8393,8394,8395,8396,8397,8398,8399,
+8400,8401,8402,8403,8404,8405,8406,8407,8408,8409,8410,8411,8412,8413,8414,8415,
+8416,8417,8418,8419,8420,8421,8422,8423,8424,8425,8426,8427,8428,8429,8430,8431,
+8432,8433,8434,8435,8436,8437,8438,8439,8440,8441,8442,8443,8444,8445,8446,8447,
+8448,8449,8450,8451,8452,8453,8454,8455,8456,8457,8458,8459,8460,8461,8462,8463,
+8464,8465,8466,8467,8468,8469,8470,8471,8472,8473,8474,8475,8476,8477,8478,8479,
+8480,8481,8482,8483,8484,8485,8486,8487,8488,8489,8490,8491,8492,8493,8494,8495,
+8496,8497,8498,8499,8500,8501,8502,8503,8504,8505,8506,8507,8508,8509,8510,8511,
+8512,8513,8514,8515,8516,8517,8518,8519,8520,8521,8522,8523,8524,8525,8526,8527,
+8528,8529,8530,8531,8532,8533,8534,8535,8536,8537,8538,8539,8540,8541,8542,8543,
+8544,8545,8546,8547,8548,8549,8550,8551,8552,8553,8554,8555,8556,8557,8558,8559,
+8560,8561,8562,8563,8564,8565,8566,8567,8568,8569,8570,8571,8572,8573,8574,8575,
+8576,8577,8578,8579,8580,8581,8582,8583,8584,8585,8586,8587,8588,8589,8590,8591,
+8592,8593,8594,8595,8596,8597,8598,8599,8600,8601,8602,8603,8604,8605,8606,8607,
+8608,8609,8610,8611,8612,8613,8614,8615,8616,8617,8618,8619,8620,8621,8622,8623,
+8624,8625,8626,8627,8628,8629,8630,8631,8632,8633,8634,8635,8636,8637,8638,8639,
+8640,8641,8642,8643,8644,8645,8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,
+8656,8657,8658,8659,8660,8661,8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,
+8672,8673,8674,8675,8676,8677,8678,8679,8680,8681,8682,8683,8684,8685,8686,8687,
+8688,8689,8690,8691,8692,8693,8694,8695,8696,8697,8698,8699,8700,8701,8702,8703,
+8704,8705,8706,8707,8708,8709,8710,8711,8712,8713,8714,8715,8716,8717,8718,8719,
+8720,8721,8722,8723,8724,8725,8726,8727,8728,8729,8730,8731,8732,8733,8734,8735,
+8736,8737,8738,8739,8740,8741)
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py
new file mode 100644
index 0000000..5982a46
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py
@@ -0,0 +1,42 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCKRDistributionAnalysis
+from .mbcssm import EUCKRSMModel
+
+
+class EUCKRProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCKRSMModel)
+        self._mDistributionAnalyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "EUC-KR"
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py
new file mode 100644
index 0000000..576e750
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py
@@ -0,0 +1,428 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# EUCTW frequency table
+# Converted from big5 work
+# by Taiwan's Mandarin Promotion Council
+# <http:#www.edu.tw:81/mandr/>
+
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Idea Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+EUCTW_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+# Char to FreqOrder table ,
+EUCTW_TABLE_SIZE = 8102
+
+EUCTWCharToFreqOrder = (
+   1,1800,1506, 255,1431, 198,   9,  82,   6,7310, 177, 202,3615,1256,2808, 110, # 2742
+3735,  33,3241, 261,  76,  44,2113,  16,2931,2184,1176, 659,3868,  26,3404,2643, # 2758
+1198,3869,3313,4060, 410,2211, 302, 590, 361,1963,   8, 204,  58,4296,7311,1931, # 2774
+  63,7312,7313, 317,1614,  75, 222, 159,4061,2412,1480,7314,3500,3068, 224,2809, # 2790
+3616,   3,  10,3870,1471,  29,2774,1135,2852,1939, 873, 130,3242,1123, 312,7315, # 2806
+4297,2051, 507, 252, 682,7316, 142,1914, 124, 206,2932,  34,3501,3173,  64, 604, # 2822
+7317,2494,1976,1977, 155,1990, 645, 641,1606,7318,3405, 337,  72, 406,7319,  80, # 2838
+ 630, 238,3174,1509, 263, 939,1092,2644, 756,1440,1094,3406, 449,  69,2969, 591, # 2854
+ 179,2095, 471, 115,2034,1843,  60,  50,2970, 134, 806,1868, 734,2035,3407, 180, # 2870
+ 995,1607, 156, 537,2893, 688,7320, 319,1305, 779,2144, 514,2374, 298,4298, 359, # 2886
+2495,  90,2707,1338, 663,  11, 906,1099,2545,  20,2436, 182, 532,1716,7321, 732, # 2902
+1376,4062,1311,1420,3175,  25,2312,1056, 113, 399, 382,1949, 242,3408,2467, 529, # 2918
+3243, 475,1447,3617,7322, 117,  21, 656, 810,1297,2295,2329,3502,7323, 126,4063, # 2934
+ 706, 456, 150, 613,4299,  71,1118,2036,4064, 145,3069,  85, 835, 486,2114,1246, # 2950
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,7324,2127,2354, 347,3736, 221, # 2966
+3503,3110,7325,1955,1153,4065,  83, 296,1199,3070, 192, 624,  93,7326, 822,1897, # 2982
+2810,3111, 795,2064, 991,1554,1542,1592,  27,  43,2853, 859, 139,1456, 860,4300, # 2998
+ 437, 712,3871, 164,2392,3112, 695, 211,3017,2096, 195,3872,1608,3504,3505,3618, # 3014
+3873, 234, 811,2971,2097,3874,2229,1441,3506,1615,2375, 668,2076,1638, 305, 228, # 3030
+1664,4301, 467, 415,7327, 262,2098,1593, 239, 108, 300, 200,1033, 512,1247,2077, # 3046
+7328,7329,2173,3176,3619,2673, 593, 845,1062,3244,  88,1723,2037,3875,1950, 212, # 3062
+ 266, 152, 149, 468,1898,4066,4302,  77, 187,7330,3018,  37,   5,2972,7331,3876, # 3078
+7332,7333,  39,2517,4303,2894,3177,2078,  55, 148,  74,4304, 545, 483,1474,1029, # 3094
+1665, 217,1869,1531,3113,1104,2645,4067,  24, 172,3507, 900,3877,3508,3509,4305, # 3110
+  32,1408,2811,1312, 329, 487,2355,2247,2708, 784,2674,   4,3019,3314,1427,1788, # 3126
+ 188, 109, 499,7334,3620,1717,1789, 888,1217,3020,4306,7335,3510,7336,3315,1520, # 3142
+3621,3878, 196,1034, 775,7337,7338, 929,1815, 249, 439,  38,7339,1063,7340, 794, # 3158
+3879,1435,2296,  46, 178,3245,2065,7341,2376,7342, 214,1709,4307, 804,  35, 707, # 3174
+ 324,3622,1601,2546, 140, 459,4068,7343,7344,1365, 839, 272, 978,2257,2572,3409, # 3190
+2128,1363,3623,1423, 697, 100,3071,  48,  70,1231, 495,3114,2193,7345,1294,7346, # 3206
+2079, 462, 586,1042,3246, 853, 256, 988, 185,2377,3410,1698, 434,1084,7347,3411, # 3222
+ 314,2615,2775,4308,2330,2331, 569,2280, 637,1816,2518, 757,1162,1878,1616,3412, # 3238
+ 287,1577,2115, 768,4309,1671,2854,3511,2519,1321,3737, 909,2413,7348,4069, 933, # 3254
+3738,7349,2052,2356,1222,4310, 765,2414,1322, 786,4311,7350,1919,1462,1677,2895, # 3270
+1699,7351,4312,1424,2437,3115,3624,2590,3316,1774,1940,3413,3880,4070, 309,1369, # 3286
+1130,2812, 364,2230,1653,1299,3881,3512,3882,3883,2646, 525,1085,3021, 902,2000, # 3302
+1475, 964,4313, 421,1844,1415,1057,2281, 940,1364,3116, 376,4314,4315,1381,   7, # 3318
+2520, 983,2378, 336,1710,2675,1845, 321,3414, 559,1131,3022,2742,1808,1132,1313, # 3334
+ 265,1481,1857,7352, 352,1203,2813,3247, 167,1089, 420,2814, 776, 792,1724,3513, # 3350
+4071,2438,3248,7353,4072,7354, 446, 229, 333,2743, 901,3739,1200,1557,4316,2647, # 3366
+1920, 395,2744,2676,3740,4073,1835, 125, 916,3178,2616,4317,7355,7356,3741,7357, # 3382
+7358,7359,4318,3117,3625,1133,2547,1757,3415,1510,2313,1409,3514,7360,2145, 438, # 3398
+2591,2896,2379,3317,1068, 958,3023, 461, 311,2855,2677,4074,1915,3179,4075,1978, # 3414
+ 383, 750,2745,2617,4076, 274, 539, 385,1278,1442,7361,1154,1964, 384, 561, 210, # 3430
+  98,1295,2548,3515,7362,1711,2415,1482,3416,3884,2897,1257, 129,7363,3742, 642, # 3446
+ 523,2776,2777,2648,7364, 141,2231,1333,  68, 176, 441, 876, 907,4077, 603,2592, # 3462
+ 710, 171,3417, 404, 549,  18,3118,2393,1410,3626,1666,7365,3516,4319,2898,4320, # 3478
+7366,2973, 368,7367, 146, 366,  99, 871,3627,1543, 748, 807,1586,1185,  22,2258, # 3494
+ 379,3743,3180,7368,3181, 505,1941,2618,1991,1382,2314,7369, 380,2357, 218, 702, # 3510
+1817,1248,3418,3024,3517,3318,3249,7370,2974,3628, 930,3250,3744,7371,  59,7372, # 3526
+ 585, 601,4078, 497,3419,1112,1314,4321,1801,7373,1223,1472,2174,7374, 749,1836, # 3542
+ 690,1899,3745,1772,3885,1476, 429,1043,1790,2232,2116, 917,4079, 447,1086,1629, # 3558
+7375, 556,7376,7377,2020,1654, 844,1090, 105, 550, 966,1758,2815,1008,1782, 686, # 3574
+1095,7378,2282, 793,1602,7379,3518,2593,4322,4080,2933,2297,4323,3746, 980,2496, # 3590
+ 544, 353, 527,4324, 908,2678,2899,7380, 381,2619,1942,1348,7381,1341,1252, 560, # 3606
+3072,7382,3420,2856,7383,2053, 973, 886,2080, 143,4325,7384,7385, 157,3886, 496, # 3622
+4081,  57, 840, 540,2038,4326,4327,3421,2117,1445, 970,2259,1748,1965,2081,4082, # 3638
+3119,1234,1775,3251,2816,3629, 773,1206,2129,1066,2039,1326,3887,1738,1725,4083, # 3654
+ 279,3120,  51,1544,2594, 423,1578,2130,2066, 173,4328,1879,7386,7387,1583, 264, # 3670
+ 610,3630,4329,2439, 280, 154,7388,7389,7390,1739, 338,1282,3073, 693,2857,1411, # 3686
+1074,3747,2440,7391,4330,7392,7393,1240, 952,2394,7394,2900,1538,2679, 685,1483, # 3702
+4084,2468,1436, 953,4085,2054,4331, 671,2395,  79,4086,2441,3252, 608, 567,2680, # 3718
+3422,4087,4088,1691, 393,1261,1791,2396,7395,4332,7396,7397,7398,7399,1383,1672, # 3734
+3748,3182,1464, 522,1119, 661,1150, 216, 675,4333,3888,1432,3519, 609,4334,2681, # 3750
+2397,7400,7401,7402,4089,3025,   0,7403,2469, 315, 231,2442, 301,3319,4335,2380, # 3766
+7404, 233,4090,3631,1818,4336,4337,7405,  96,1776,1315,2082,7406, 257,7407,1809, # 3782
+3632,2709,1139,1819,4091,2021,1124,2163,2778,1777,2649,7408,3074, 363,1655,3183, # 3798
+7409,2975,7410,7411,7412,3889,1567,3890, 718, 103,3184, 849,1443, 341,3320,2934, # 3814
+1484,7413,1712, 127,  67, 339,4092,2398, 679,1412, 821,7414,7415, 834, 738, 351, # 3830
+2976,2146, 846, 235,1497,1880, 418,1992,3749,2710, 186,1100,2147,2746,3520,1545, # 3846
+1355,2935,2858,1377, 583,3891,4093,2573,2977,7416,1298,3633,1078,2549,3634,2358, # 3862
+  78,3750,3751, 267,1289,2099,2001,1594,4094, 348, 369,1274,2194,2175,1837,4338, # 3878
+1820,2817,3635,2747,2283,2002,4339,2936,2748, 144,3321, 882,4340,3892,2749,3423, # 3894
+4341,2901,7417,4095,1726, 320,7418,3893,3026, 788,2978,7419,2818,1773,1327,2859, # 3910
+3894,2819,7420,1306,4342,2003,1700,3752,3521,2359,2650, 787,2022, 506, 824,3636, # 3926
+ 534, 323,4343,1044,3322,2023,1900, 946,3424,7421,1778,1500,1678,7422,1881,4344, # 3942
+ 165, 243,4345,3637,2521, 123, 683,4096, 764,4346,  36,3895,1792, 589,2902, 816, # 3958
+ 626,1667,3027,2233,1639,1555,1622,3753,3896,7423,3897,2860,1370,1228,1932, 891, # 3974
+2083,2903, 304,4097,7424, 292,2979,2711,3522, 691,2100,4098,1115,4347, 118, 662, # 3990
+7425, 611,1156, 854,2381,1316,2861,   2, 386, 515,2904,7426,7427,3253, 868,2234, # 4006
+1486, 855,2651, 785,2212,3028,7428,1040,3185,3523,7429,3121, 448,7430,1525,7431, # 4022
+2164,4348,7432,3754,7433,4099,2820,3524,3122, 503, 818,3898,3123,1568, 814, 676, # 4038
+1444, 306,1749,7434,3755,1416,1030, 197,1428, 805,2821,1501,4349,7435,7436,7437, # 4054
+1993,7438,4350,7439,7440,2195,  13,2779,3638,2980,3124,1229,1916,7441,3756,2131, # 4070
+7442,4100,4351,2399,3525,7443,2213,1511,1727,1120,7444,7445, 646,3757,2443, 307, # 4086
+7446,7447,1595,3186,7448,7449,7450,3639,1113,1356,3899,1465,2522,2523,7451, 519, # 4102
+7452, 128,2132,  92,2284,1979,7453,3900,1512, 342,3125,2196,7454,2780,2214,1980, # 4118
+3323,7455, 290,1656,1317, 789, 827,2360,7456,3758,4352, 562, 581,3901,7457, 401, # 4134
+4353,2248,  94,4354,1399,2781,7458,1463,2024,4355,3187,1943,7459, 828,1105,4101, # 4150
+1262,1394,7460,4102, 605,4356,7461,1783,2862,7462,2822, 819,2101, 578,2197,2937, # 4166
+7463,1502, 436,3254,4103,3255,2823,3902,2905,3425,3426,7464,2712,2315,7465,7466, # 4182
+2332,2067,  23,4357, 193, 826,3759,2102, 699,1630,4104,3075, 390,1793,1064,3526, # 4198
+7467,1579,3076,3077,1400,7468,4105,1838,1640,2863,7469,4358,4359, 137,4106, 598, # 4214
+3078,1966, 780, 104, 974,2938,7470, 278, 899, 253, 402, 572, 504, 493,1339,7471, # 4230
+3903,1275,4360,2574,2550,7472,3640,3029,3079,2249, 565,1334,2713, 863,  41,7473, # 4246
+7474,4361,7475,1657,2333,  19, 463,2750,4107, 606,7476,2981,3256,1087,2084,1323, # 4262
+2652,2982,7477,1631,1623,1750,4108,2682,7478,2864, 791,2714,2653,2334, 232,2416, # 4278
+7479,2983,1498,7480,2654,2620, 755,1366,3641,3257,3126,2025,1609, 119,1917,3427, # 4294
+ 862,1026,4109,7481,3904,3760,4362,3905,4363,2260,1951,2470,7482,1125, 817,4110, # 4310
+4111,3906,1513,1766,2040,1487,4112,3030,3258,2824,3761,3127,7483,7484,1507,7485, # 4326
+2683, 733,  40,1632,1106,2865, 345,4113, 841,2524, 230,4364,2984,1846,3259,3428, # 4342
+7486,1263, 986,3429,7487, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562,3907, # 4358
+3908,2939, 967,2751,2655,1349, 592,2133,1692,3324,2985,1994,4114,1679,3909,1901, # 4374
+2185,7488, 739,3642,2715,1296,1290,7489,4115,2198,2199,1921,1563,2595,2551,1870, # 4390
+2752,2986,7490, 435,7491, 343,1108, 596,  17,1751,4365,2235,3430,3643,7492,4366, # 4406
+ 294,3527,2940,1693, 477, 979, 281,2041,3528, 643,2042,3644,2621,2782,2261,1031, # 4422
+2335,2134,2298,3529,4367, 367,1249,2552,7493,3530,7494,4368,1283,3325,2004, 240, # 4438
+1762,3326,4369,4370, 836,1069,3128, 474,7495,2148,2525, 268,3531,7496,3188,1521, # 4454
+1284,7497,1658,1546,4116,7498,3532,3533,7499,4117,3327,2684,1685,4118, 961,1673, # 4470
+2622, 190,2005,2200,3762,4371,4372,7500, 570,2497,3645,1490,7501,4373,2623,3260, # 4486
+1956,4374, 584,1514, 396,1045,1944,7502,4375,1967,2444,7503,7504,4376,3910, 619, # 4502
+7505,3129,3261, 215,2006,2783,2553,3189,4377,3190,4378, 763,4119,3763,4379,7506, # 4518
+7507,1957,1767,2941,3328,3646,1174, 452,1477,4380,3329,3130,7508,2825,1253,2382, # 4534
+2186,1091,2285,4120, 492,7509, 638,1169,1824,2135,1752,3911, 648, 926,1021,1324, # 4550
+4381, 520,4382, 997, 847,1007, 892,4383,3764,2262,1871,3647,7510,2400,1784,4384, # 4566
+1952,2942,3080,3191,1728,4121,2043,3648,4385,2007,1701,3131,1551,  30,2263,4122, # 4582
+7511,2026,4386,3534,7512, 501,7513,4123, 594,3431,2165,1821,3535,3432,3536,3192, # 4598
+ 829,2826,4124,7514,1680,3132,1225,4125,7515,3262,4387,4126,3133,2336,7516,4388, # 4614
+4127,7517,3912,3913,7518,1847,2383,2596,3330,7519,4389, 374,3914, 652,4128,4129, # 4630
+ 375,1140, 798,7520,7521,7522,2361,4390,2264, 546,1659, 138,3031,2445,4391,7523, # 4646
+2250, 612,1848, 910, 796,3765,1740,1371, 825,3766,3767,7524,2906,2554,7525, 692, # 4662
+ 444,3032,2624, 801,4392,4130,7526,1491, 244,1053,3033,4131,4132, 340,7527,3915, # 4678
+1041,2987, 293,1168,  87,1357,7528,1539, 959,7529,2236, 721, 694,4133,3768, 219, # 4694
+1478, 644,1417,3331,2656,1413,1401,1335,1389,3916,7530,7531,2988,2362,3134,1825, # 4710
+ 730,1515, 184,2827,  66,4393,7532,1660,2943, 246,3332, 378,1457, 226,3433, 975, # 4726
+3917,2944,1264,3537, 674, 696,7533, 163,7534,1141,2417,2166, 713,3538,3333,4394, # 4742
+3918,7535,7536,1186,  15,7537,1079,1070,7538,1522,3193,3539, 276,1050,2716, 758, # 4758
+1126, 653,2945,3263,7539,2337, 889,3540,3919,3081,2989, 903,1250,4395,3920,3434, # 4774
+3541,1342,1681,1718, 766,3264, 286,  89,2946,3649,7540,1713,7541,2597,3334,2990, # 4790
+7542,2947,2215,3194,2866,7543,4396,2498,2526, 181, 387,1075,3921, 731,2187,3335, # 4806
+7544,3265, 310, 313,3435,2299, 770,4134,  54,3034, 189,4397,3082,3769,3922,7545, # 4822
+1230,1617,1849, 355,3542,4135,4398,3336, 111,4136,3650,1350,3135,3436,3035,4137, # 4838
+2149,3266,3543,7546,2784,3923,3924,2991, 722,2008,7547,1071, 247,1207,2338,2471, # 4854
+1378,4399,2009, 864,1437,1214,4400, 373,3770,1142,2216, 667,4401, 442,2753,2555, # 4870
+3771,3925,1968,4138,3267,1839, 837, 170,1107, 934,1336,1882,7548,7549,2118,4139, # 4886
+2828, 743,1569,7550,4402,4140, 582,2384,1418,3437,7551,1802,7552, 357,1395,1729, # 4902
+3651,3268,2418,1564,2237,7553,3083,3772,1633,4403,1114,2085,4141,1532,7554, 482, # 4918
+2446,4404,7555,7556,1492, 833,1466,7557,2717,3544,1641,2829,7558,1526,1272,3652, # 4934
+4142,1686,1794, 416,2556,1902,1953,1803,7559,3773,2785,3774,1159,2316,7560,2867, # 4950
+4405,1610,1584,3036,2419,2754, 443,3269,1163,3136,7561,7562,3926,7563,4143,2499, # 4966
+3037,4406,3927,3137,2103,1647,3545,2010,1872,4144,7564,4145, 431,3438,7565, 250, # 4982
+  97,  81,4146,7566,1648,1850,1558, 160, 848,7567, 866, 740,1694,7568,2201,2830, # 4998
+3195,4147,4407,3653,1687, 950,2472, 426, 469,3196,3654,3655,3928,7569,7570,1188, # 5014
+ 424,1995, 861,3546,4148,3775,2202,2685, 168,1235,3547,4149,7571,2086,1674,4408, # 5030
+3337,3270, 220,2557,1009,7572,3776, 670,2992, 332,1208, 717,7573,7574,3548,2447, # 5046
+3929,3338,7575, 513,7576,1209,2868,3339,3138,4409,1080,7577,7578,7579,7580,2527, # 5062
+3656,3549, 815,1587,3930,3931,7581,3550,3439,3777,1254,4410,1328,3038,1390,3932, # 5078
+1741,3933,3778,3934,7582, 236,3779,2448,3271,7583,7584,3657,3780,1273,3781,4411, # 5094
+7585, 308,7586,4412, 245,4413,1851,2473,1307,2575, 430, 715,2136,2449,7587, 270, # 5110
+ 199,2869,3935,7588,3551,2718,1753, 761,1754, 725,1661,1840,4414,3440,3658,7589, # 5126
+7590, 587,  14,3272, 227,2598, 326, 480,2265, 943,2755,3552, 291, 650,1883,7591, # 5142
+1702,1226, 102,1547,  62,3441, 904,4415,3442,1164,4150,7592,7593,1224,1548,2756, # 5158
+ 391, 498,1493,7594,1386,1419,7595,2055,1177,4416, 813, 880,1081,2363, 566,1145, # 5174
+4417,2286,1001,1035,2558,2599,2238, 394,1286,7596,7597,2068,7598,  86,1494,1730, # 5190
+3936, 491,1588, 745, 897,2948, 843,3340,3937,2757,2870,3273,1768, 998,2217,2069, # 5206
+ 397,1826,1195,1969,3659,2993,3341, 284,7599,3782,2500,2137,2119,1903,7600,3938, # 5222
+2150,3939,4151,1036,3443,1904, 114,2559,4152, 209,1527,7601,7602,2949,2831,2625, # 5238
+2385,2719,3139, 812,2560,7603,3274,7604,1559, 737,1884,3660,1210, 885,  28,2686, # 5254
+3553,3783,7605,4153,1004,1779,4418,7606, 346,1981,2218,2687,4419,3784,1742, 797, # 5270
+1642,3940,1933,1072,1384,2151, 896,3941,3275,3661,3197,2871,3554,7607,2561,1958, # 5286
+4420,2450,1785,7608,7609,7610,3942,4154,1005,1308,3662,4155,2720,4421,4422,1528, # 5302
+2600, 161,1178,4156,1982, 987,4423,1101,4157, 631,3943,1157,3198,2420,1343,1241, # 5318
+1016,2239,2562, 372, 877,2339,2501,1160, 555,1934, 911,3944,7611, 466,1170, 169, # 5334
+1051,2907,2688,3663,2474,2994,1182,2011,2563,1251,2626,7612, 992,2340,3444,1540, # 5350
+2721,1201,2070,2401,1996,2475,7613,4424, 528,1922,2188,1503,1873,1570,2364,3342, # 5366
+3276,7614, 557,1073,7615,1827,3445,2087,2266,3140,3039,3084, 767,3085,2786,4425, # 5382
+1006,4158,4426,2341,1267,2176,3664,3199, 778,3945,3200,2722,1597,2657,7616,4427, # 5398
+7617,3446,7618,7619,7620,3277,2689,1433,3278, 131,  95,1504,3946, 723,4159,3141, # 5414
+1841,3555,2758,2189,3947,2027,2104,3665,7621,2995,3948,1218,7622,3343,3201,3949, # 5430
+4160,2576, 248,1634,3785, 912,7623,2832,3666,3040,3786, 654,  53,7624,2996,7625, # 5446
+1688,4428, 777,3447,1032,3950,1425,7626, 191, 820,2120,2833, 971,4429, 931,3202, # 5462
+ 135, 664, 783,3787,1997, 772,2908,1935,3951,3788,4430,2909,3203, 282,2723, 640, # 5478
+1372,3448,1127, 922, 325,3344,7627,7628, 711,2044,7629,7630,3952,2219,2787,1936, # 5494
+3953,3345,2220,2251,3789,2300,7631,4431,3790,1258,3279,3954,3204,2138,2950,3955, # 5510
+3956,7632,2221, 258,3205,4432, 101,1227,7633,3280,1755,7634,1391,3281,7635,2910, # 5526
+2056, 893,7636,7637,7638,1402,4161,2342,7639,7640,3206,3556,7641,7642, 878,1325, # 5542
+1780,2788,4433, 259,1385,2577, 744,1183,2267,4434,7643,3957,2502,7644, 684,1024, # 5558
+4162,7645, 472,3557,3449,1165,3282,3958,3959, 322,2152, 881, 455,1695,1152,1340, # 5574
+ 660, 554,2153,4435,1058,4436,4163, 830,1065,3346,3960,4437,1923,7646,1703,1918, # 5590
+7647, 932,2268, 122,7648,4438, 947, 677,7649,3791,2627, 297,1905,1924,2269,4439, # 5606
+2317,3283,7650,7651,4164,7652,4165,  84,4166, 112, 989,7653, 547,1059,3961, 701, # 5622
+3558,1019,7654,4167,7655,3450, 942, 639, 457,2301,2451, 993,2951, 407, 851, 494, # 5638
+4440,3347, 927,7656,1237,7657,2421,3348, 573,4168, 680, 921,2911,1279,1874, 285, # 5654
+ 790,1448,1983, 719,2167,7658,7659,4441,3962,3963,1649,7660,1541, 563,7661,1077, # 5670
+7662,3349,3041,3451, 511,2997,3964,3965,3667,3966,1268,2564,3350,3207,4442,4443, # 5686
+7663, 535,1048,1276,1189,2912,2028,3142,1438,1373,2834,2952,1134,2012,7664,4169, # 5702
+1238,2578,3086,1259,7665, 700,7666,2953,3143,3668,4170,7667,4171,1146,1875,1906, # 5718
+4444,2601,3967, 781,2422, 132,1589, 203, 147, 273,2789,2402, 898,1786,2154,3968, # 5734
+3969,7668,3792,2790,7669,7670,4445,4446,7671,3208,7672,1635,3793, 965,7673,1804, # 5750
+2690,1516,3559,1121,1082,1329,3284,3970,1449,3794,  65,1128,2835,2913,2759,1590, # 5766
+3795,7674,7675,  12,2658,  45, 976,2579,3144,4447, 517,2528,1013,1037,3209,7676, # 5782
+3796,2836,7677,3797,7678,3452,7679,2602, 614,1998,2318,3798,3087,2724,2628,7680, # 5798
+2580,4172, 599,1269,7681,1810,3669,7682,2691,3088, 759,1060, 489,1805,3351,3285, # 5814
+1358,7683,7684,2386,1387,1215,2629,2252, 490,7685,7686,4173,1759,2387,2343,7687, # 5830
+4448,3799,1907,3971,2630,1806,3210,4449,3453,3286,2760,2344, 874,7688,7689,3454, # 5846
+3670,1858,  91,2914,3671,3042,3800,4450,7690,3145,3972,2659,7691,3455,1202,1403, # 5862
+3801,2954,2529,1517,2503,4451,3456,2504,7692,4452,7693,2692,1885,1495,1731,3973, # 5878
+2365,4453,7694,2029,7695,7696,3974,2693,1216, 237,2581,4174,2319,3975,3802,4454, # 5894
+4455,2694,3560,3457, 445,4456,7697,7698,7699,7700,2761,  61,3976,3672,1822,3977, # 5910
+7701, 687,2045, 935, 925, 405,2660, 703,1096,1859,2725,4457,3978,1876,1367,2695, # 5926
+3352, 918,2105,1781,2476, 334,3287,1611,1093,4458, 564,3146,3458,3673,3353, 945, # 5942
+2631,2057,4459,7702,1925, 872,4175,7703,3459,2696,3089, 349,4176,3674,3979,4460, # 5958
+3803,4177,3675,2155,3980,4461,4462,4178,4463,2403,2046, 782,3981, 400, 251,4179, # 5974
+1624,7704,7705, 277,3676, 299,1265, 476,1191,3804,2121,4180,4181,1109, 205,7706, # 5990
+2582,1000,2156,3561,1860,7707,7708,7709,4464,7710,4465,2565, 107,2477,2157,3982, # 6006
+3460,3147,7711,1533, 541,1301, 158, 753,4182,2872,3562,7712,1696, 370,1088,4183, # 6022
+4466,3563, 579, 327, 440, 162,2240, 269,1937,1374,3461, 968,3043,  56,1396,3090, # 6038
+2106,3288,3354,7713,1926,2158,4467,2998,7714,3564,7715,7716,3677,4468,2478,7717, # 6054
+2791,7718,1650,4469,7719,2603,7720,7721,3983,2661,3355,1149,3356,3984,3805,3985, # 6070
+7722,1076,  49,7723, 951,3211,3289,3290, 450,2837, 920,7724,1811,2792,2366,4184, # 6086
+1908,1138,2367,3806,3462,7725,3212,4470,1909,1147,1518,2423,4471,3807,7726,4472, # 6102
+2388,2604, 260,1795,3213,7727,7728,3808,3291, 708,7729,3565,1704,7730,3566,1351, # 6118
+1618,3357,2999,1886, 944,4185,3358,4186,3044,3359,4187,7731,3678, 422, 413,1714, # 6134
+3292, 500,2058,2345,4188,2479,7732,1344,1910, 954,7733,1668,7734,7735,3986,2404, # 6150
+4189,3567,3809,4190,7736,2302,1318,2505,3091, 133,3092,2873,4473, 629,  31,2838, # 6166
+2697,3810,4474, 850, 949,4475,3987,2955,1732,2088,4191,1496,1852,7737,3988, 620, # 6182
+3214, 981,1242,3679,3360,1619,3680,1643,3293,2139,2452,1970,1719,3463,2168,7738, # 6198
+3215,7739,7740,3361,1828,7741,1277,4476,1565,2047,7742,1636,3568,3093,7743, 869, # 6214
+2839, 655,3811,3812,3094,3989,3000,3813,1310,3569,4477,7744,7745,7746,1733, 558, # 6230
+4478,3681, 335,1549,3045,1756,4192,3682,1945,3464,1829,1291,1192, 470,2726,2107, # 6246
+2793, 913,1054,3990,7747,1027,7748,3046,3991,4479, 982,2662,3362,3148,3465,3216, # 6262
+3217,1946,2794,7749, 571,4480,7750,1830,7751,3570,2583,1523,2424,7752,2089, 984, # 6278
+4481,3683,1959,7753,3684, 852, 923,2795,3466,3685, 969,1519, 999,2048,2320,1705, # 6294
+7754,3095, 615,1662, 151, 597,3992,2405,2321,1049, 275,4482,3686,4193, 568,3687, # 6310
+3571,2480,4194,3688,7755,2425,2270, 409,3218,7756,1566,2874,3467,1002, 769,2840, # 6326
+ 194,2090,3149,3689,2222,3294,4195, 628,1505,7757,7758,1763,2177,3001,3993, 521, # 6342
+1161,2584,1787,2203,2406,4483,3994,1625,4196,4197, 412,  42,3096, 464,7759,2632, # 6358
+4484,3363,1760,1571,2875,3468,2530,1219,2204,3814,2633,2140,2368,4485,4486,3295, # 6374
+1651,3364,3572,7760,7761,3573,2481,3469,7762,3690,7763,7764,2271,2091, 460,7765, # 6390
+4487,7766,3002, 962, 588,3574, 289,3219,2634,1116,  52,7767,3047,1796,7768,7769, # 6406
+7770,1467,7771,1598,1143,3691,4198,1984,1734,1067,4488,1280,3365, 465,4489,1572, # 6422
+ 510,7772,1927,2241,1812,1644,3575,7773,4490,3692,7774,7775,2663,1573,1534,7776, # 6438
+7777,4199, 536,1807,1761,3470,3815,3150,2635,7778,7779,7780,4491,3471,2915,1911, # 6454
+2796,7781,3296,1122, 377,3220,7782, 360,7783,7784,4200,1529, 551,7785,2059,3693, # 6470
+1769,2426,7786,2916,4201,3297,3097,2322,2108,2030,4492,1404, 136,1468,1479, 672, # 6486
+1171,3221,2303, 271,3151,7787,2762,7788,2049, 678,2727, 865,1947,4493,7789,2013, # 6502
+3995,2956,7790,2728,2223,1397,3048,3694,4494,4495,1735,2917,3366,3576,7791,3816, # 6518
+ 509,2841,2453,2876,3817,7792,7793,3152,3153,4496,4202,2531,4497,2304,1166,1010, # 6534
+ 552, 681,1887,7794,7795,2957,2958,3996,1287,1596,1861,3154, 358, 453, 736, 175, # 6550
+ 478,1117, 905,1167,1097,7796,1853,1530,7797,1706,7798,2178,3472,2287,3695,3473, # 6566
+3577,4203,2092,4204,7799,3367,1193,2482,4205,1458,2190,2205,1862,1888,1421,3298, # 6582
+2918,3049,2179,3474, 595,2122,7800,3997,7801,7802,4206,1707,2636, 223,3696,1359, # 6598
+ 751,3098, 183,3475,7803,2797,3003, 419,2369, 633, 704,3818,2389, 241,7804,7805, # 6614
+7806, 838,3004,3697,2272,2763,2454,3819,1938,2050,3998,1309,3099,2242,1181,7807, # 6630
+1136,2206,3820,2370,1446,4207,2305,4498,7808,7809,4208,1055,2605, 484,3698,7810, # 6646
+3999, 625,4209,2273,3368,1499,4210,4000,7811,4001,4211,3222,2274,2275,3476,7812, # 6662
+7813,2764, 808,2606,3699,3369,4002,4212,3100,2532, 526,3370,3821,4213, 955,7814, # 6678
+1620,4214,2637,2427,7815,1429,3700,1669,1831, 994, 928,7816,3578,1260,7817,7818, # 6694
+7819,1948,2288, 741,2919,1626,4215,2729,2455, 867,1184, 362,3371,1392,7820,7821, # 6710
+4003,4216,1770,1736,3223,2920,4499,4500,1928,2698,1459,1158,7822,3050,3372,2877, # 6726
+1292,1929,2506,2842,3701,1985,1187,2071,2014,2607,4217,7823,2566,2507,2169,3702, # 6742
+2483,3299,7824,3703,4501,7825,7826, 666,1003,3005,1022,3579,4218,7827,4502,1813, # 6758
+2253, 574,3822,1603, 295,1535, 705,3823,4219, 283, 858, 417,7828,7829,3224,4503, # 6774
+4504,3051,1220,1889,1046,2276,2456,4004,1393,1599, 689,2567, 388,4220,7830,2484, # 6790
+ 802,7831,2798,3824,2060,1405,2254,7832,4505,3825,2109,1052,1345,3225,1585,7833, # 6806
+ 809,7834,7835,7836, 575,2730,3477, 956,1552,1469,1144,2323,7837,2324,1560,2457, # 6822
+3580,3226,4005, 616,2207,3155,2180,2289,7838,1832,7839,3478,4506,7840,1319,3704, # 6838
+3705,1211,3581,1023,3227,1293,2799,7841,7842,7843,3826, 607,2306,3827, 762,2878, # 6854
+1439,4221,1360,7844,1485,3052,7845,4507,1038,4222,1450,2061,2638,4223,1379,4508, # 6870
+2585,7846,7847,4224,1352,1414,2325,2921,1172,7848,7849,3828,3829,7850,1797,1451, # 6886
+7851,7852,7853,7854,2922,4006,4007,2485,2346, 411,4008,4009,3582,3300,3101,4509, # 6902
+1561,2664,1452,4010,1375,7855,7856,  47,2959, 316,7857,1406,1591,2923,3156,7858, # 6918
+1025,2141,3102,3157, 354,2731, 884,2224,4225,2407, 508,3706, 726,3583, 996,2428, # 6934
+3584, 729,7859, 392,2191,1453,4011,4510,3707,7860,7861,2458,3585,2608,1675,2800, # 6950
+ 919,2347,2960,2348,1270,4511,4012,  73,7862,7863, 647,7864,3228,2843,2255,1550, # 6966
+1346,3006,7865,1332, 883,3479,7866,7867,7868,7869,3301,2765,7870,1212, 831,1347, # 6982
+4226,4512,2326,3830,1863,3053, 720,3831,4513,4514,3832,7871,4227,7872,7873,4515, # 6998
+7874,7875,1798,4516,3708,2609,4517,3586,1645,2371,7876,7877,2924, 669,2208,2665, # 7014
+2429,7878,2879,7879,7880,1028,3229,7881,4228,2408,7882,2256,1353,7883,7884,4518, # 7030
+3158, 518,7885,4013,7886,4229,1960,7887,2142,4230,7888,7889,3007,2349,2350,3833, # 7046
+ 516,1833,1454,4014,2699,4231,4519,2225,2610,1971,1129,3587,7890,2766,7891,2961, # 7062
+1422, 577,1470,3008,1524,3373,7892,7893, 432,4232,3054,3480,7894,2586,1455,2508, # 7078
+2226,1972,1175,7895,1020,2732,4015,3481,4520,7896,2733,7897,1743,1361,3055,3482, # 7094
+2639,4016,4233,4521,2290, 895, 924,4234,2170, 331,2243,3056, 166,1627,3057,1098, # 7110
+7898,1232,2880,2227,3374,4522, 657, 403,1196,2372, 542,3709,3375,1600,4235,3483, # 7126
+7899,4523,2767,3230, 576, 530,1362,7900,4524,2533,2666,3710,4017,7901, 842,3834, # 7142
+7902,2801,2031,1014,4018, 213,2700,3376, 665, 621,4236,7903,3711,2925,2430,7904, # 7158
+2431,3302,3588,3377,7905,4237,2534,4238,4525,3589,1682,4239,3484,1380,7906, 724, # 7174
+2277, 600,1670,7907,1337,1233,4526,3103,2244,7908,1621,4527,7909, 651,4240,7910, # 7190
+1612,4241,2611,7911,2844,7912,2734,2307,3058,7913, 716,2459,3059, 174,1255,2701, # 7206
+4019,3590, 548,1320,1398, 728,4020,1574,7914,1890,1197,3060,4021,7915,3061,3062, # 7222
+3712,3591,3713, 747,7916, 635,4242,4528,7917,7918,7919,4243,7920,7921,4529,7922, # 7238
+3378,4530,2432, 451,7923,3714,2535,2072,4244,2735,4245,4022,7924,1764,4531,7925, # 7254
+4246, 350,7926,2278,2390,2486,7927,4247,4023,2245,1434,4024, 488,4532, 458,4248, # 7270
+4025,3715, 771,1330,2391,3835,2568,3159,2159,2409,1553,2667,3160,4249,7928,2487, # 7286
+2881,2612,1720,2702,4250,3379,4533,7929,2536,4251,7930,3231,4252,2768,7931,2015, # 7302
+2736,7932,1155,1017,3716,3836,7933,3303,2308, 201,1864,4253,1430,7934,4026,7935, # 7318
+7936,7937,7938,7939,4254,1604,7940, 414,1865, 371,2587,4534,4535,3485,2016,3104, # 7334
+4536,1708, 960,4255, 887, 389,2171,1536,1663,1721,7941,2228,4027,2351,2926,1580, # 7350
+7942,7943,7944,1744,7945,2537,4537,4538,7946,4539,7947,2073,7948,7949,3592,3380, # 7366
+2882,4256,7950,4257,2640,3381,2802, 673,2703,2460, 709,3486,4028,3593,4258,7951, # 7382
+1148, 502, 634,7952,7953,1204,4540,3594,1575,4541,2613,3717,7954,3718,3105, 948, # 7398
+3232, 121,1745,3837,1110,7955,4259,3063,2509,3009,4029,3719,1151,1771,3838,1488, # 7414
+4030,1986,7956,2433,3487,7957,7958,2093,7959,4260,3839,1213,1407,2803, 531,2737, # 7430
+2538,3233,1011,1537,7960,2769,4261,3106,1061,7961,3720,3721,1866,2883,7962,2017, # 7446
+ 120,4262,4263,2062,3595,3234,2309,3840,2668,3382,1954,4542,7963,7964,3488,1047, # 7462
+2704,1266,7965,1368,4543,2845, 649,3383,3841,2539,2738,1102,2846,2669,7966,7967, # 7478
+1999,7968,1111,3596,2962,7969,2488,3842,3597,2804,1854,3384,3722,7970,7971,3385, # 7494
+2410,2884,3304,3235,3598,7972,2569,7973,3599,2805,4031,1460, 856,7974,3600,7975, # 7510
+2885,2963,7976,2886,3843,7977,4264, 632,2510, 875,3844,1697,3845,2291,7978,7979, # 7526
+4544,3010,1239, 580,4545,4265,7980, 914, 936,2074,1190,4032,1039,2123,7981,7982, # 7542
+7983,3386,1473,7984,1354,4266,3846,7985,2172,3064,4033, 915,3305,4267,4268,3306, # 7558
+1605,1834,7986,2739, 398,3601,4269,3847,4034, 328,1912,2847,4035,3848,1331,4270, # 7574
+3011, 937,4271,7987,3602,4036,4037,3387,2160,4546,3388, 524, 742, 538,3065,1012, # 7590
+7988,7989,3849,2461,7990, 658,1103, 225,3850,7991,7992,4547,7993,4548,7994,3236, # 7606
+1243,7995,4038, 963,2246,4549,7996,2705,3603,3161,7997,7998,2588,2327,7999,4550, # 7622
+8000,8001,8002,3489,3307, 957,3389,2540,2032,1930,2927,2462, 870,2018,3604,1746, # 7638
+2770,2771,2434,2463,8003,3851,8004,3723,3107,3724,3490,3390,3725,8005,1179,3066, # 7654
+8006,3162,2373,4272,3726,2541,3163,3108,2740,4039,8007,3391,1556,2542,2292, 977, # 7670
+2887,2033,4040,1205,3392,8008,1765,3393,3164,2124,1271,1689, 714,4551,3491,8009, # 7686
+2328,3852, 533,4273,3605,2181, 617,8010,2464,3308,3492,2310,8011,8012,3165,8013, # 7702
+8014,3853,1987, 618, 427,2641,3493,3394,8015,8016,1244,1690,8017,2806,4274,4552, # 7718
+8018,3494,8019,8020,2279,1576, 473,3606,4275,3395, 972,8021,3607,8022,3067,8023, # 7734
+8024,4553,4554,8025,3727,4041,4042,8026, 153,4555, 356,8027,1891,2888,4276,2143, # 7750
+ 408, 803,2352,8028,3854,8029,4277,1646,2570,2511,4556,4557,3855,8030,3856,4278, # 7766
+8031,2411,3396, 752,8032,8033,1961,2964,8034, 746,3012,2465,8035,4279,3728, 698, # 7782
+4558,1892,4280,3608,2543,4559,3609,3857,8036,3166,3397,8037,1823,1302,4043,2706, # 7798
+3858,1973,4281,8038,4282,3167, 823,1303,1288,1236,2848,3495,4044,3398, 774,3859, # 7814
+8039,1581,4560,1304,2849,3860,4561,8040,2435,2161,1083,3237,4283,4045,4284, 344, # 7830
+1173, 288,2311, 454,1683,8041,8042,1461,4562,4046,2589,8043,8044,4563, 985, 894, # 7846
+8045,3399,3168,8046,1913,2928,3729,1988,8047,2110,1974,8048,4047,8049,2571,1194, # 7862
+ 425,8050,4564,3169,1245,3730,4285,8051,8052,2850,8053, 636,4565,1855,3861, 760, # 7878
+1799,8054,4286,2209,1508,4566,4048,1893,1684,2293,8055,8056,8057,4287,4288,2210, # 7894
+ 479,8058,8059, 832,8060,4049,2489,8061,2965,2490,3731, 990,3109, 627,1814,2642, # 7910
+4289,1582,4290,2125,2111,3496,4567,8062, 799,4291,3170,8063,4568,2112,1737,3013, # 7926
+1018, 543, 754,4292,3309,1676,4569,4570,4050,8064,1489,8065,3497,8066,2614,2889, # 7942
+4051,8067,8068,2966,8069,8070,8071,8072,3171,4571,4572,2182,1722,8073,3238,3239, # 7958
+1842,3610,1715, 481, 365,1975,1856,8074,8075,1962,2491,4573,8076,2126,3611,3240, # 7974
+ 433,1894,2063,2075,8077, 602,2741,8078,8079,8080,8081,8082,3014,1628,3400,8083, # 7990
+3172,4574,4052,2890,4575,2512,8084,2544,2772,8085,8086,8087,3310,4576,2891,8088, # 8006
+4577,8089,2851,4578,4579,1221,2967,4053,2513,8090,8091,8092,1867,1989,8093,8094, # 8022
+8095,1895,8096,8097,4580,1896,4054, 318,8098,2094,4055,4293,8099,8100, 485,8101, # 8038
+ 938,3862, 553,2670, 116,8102,3863,3612,8103,3498,2671,2773,3401,3311,2807,8104, # 8054
+3613,2929,4056,1747,2930,2968,8105,8106, 207,8107,8108,2672,4581,2514,8109,3015, # 8070
+ 890,3614,3864,8110,1877,3732,3402,8111,2183,2353,3403,1652,8112,8113,8114, 941, # 8086
+2294, 208,3499,4057,2019, 330,4294,3865,2892,2492,3733,4295,8115,8116,8117,8118, # 8102
+#Everything below is of no interest for detection purpose
+2515,1613,4582,8119,3312,3866,2516,8120,4058,8121,1637,4059,2466,4583,3867,8122, # 8118
+2493,3016,3734,8123,8124,2192,8125,8126,2162,8127,8128,8129,8130,8131,8132,8133, # 8134
+8134,8135,8136,8137,8138,8139,8140,8141,8142,8143,8144,8145,8146,8147,8148,8149, # 8150
+8150,8151,8152,8153,8154,8155,8156,8157,8158,8159,8160,8161,8162,8163,8164,8165, # 8166
+8166,8167,8168,8169,8170,8171,8172,8173,8174,8175,8176,8177,8178,8179,8180,8181, # 8182
+8182,8183,8184,8185,8186,8187,8188,8189,8190,8191,8192,8193,8194,8195,8196,8197, # 8198
+8198,8199,8200,8201,8202,8203,8204,8205,8206,8207,8208,8209,8210,8211,8212,8213, # 8214
+8214,8215,8216,8217,8218,8219,8220,8221,8222,8223,8224,8225,8226,8227,8228,8229, # 8230
+8230,8231,8232,8233,8234,8235,8236,8237,8238,8239,8240,8241,8242,8243,8244,8245, # 8246
+8246,8247,8248,8249,8250,8251,8252,8253,8254,8255,8256,8257,8258,8259,8260,8261, # 8262
+8262,8263,8264,8265,8266,8267,8268,8269,8270,8271,8272,8273,8274,8275,8276,8277, # 8278
+8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,8288,8289,8290,8291,8292,8293, # 8294
+8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,8304,8305,8306,8307,8308,8309, # 8310
+8310,8311,8312,8313,8314,8315,8316,8317,8318,8319,8320,8321,8322,8323,8324,8325, # 8326
+8326,8327,8328,8329,8330,8331,8332,8333,8334,8335,8336,8337,8338,8339,8340,8341, # 8342
+8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,8352,8353,8354,8355,8356,8357, # 8358
+8358,8359,8360,8361,8362,8363,8364,8365,8366,8367,8368,8369,8370,8371,8372,8373, # 8374
+8374,8375,8376,8377,8378,8379,8380,8381,8382,8383,8384,8385,8386,8387,8388,8389, # 8390
+8390,8391,8392,8393,8394,8395,8396,8397,8398,8399,8400,8401,8402,8403,8404,8405, # 8406
+8406,8407,8408,8409,8410,8411,8412,8413,8414,8415,8416,8417,8418,8419,8420,8421, # 8422
+8422,8423,8424,8425,8426,8427,8428,8429,8430,8431,8432,8433,8434,8435,8436,8437, # 8438
+8438,8439,8440,8441,8442,8443,8444,8445,8446,8447,8448,8449,8450,8451,8452,8453, # 8454
+8454,8455,8456,8457,8458,8459,8460,8461,8462,8463,8464,8465,8466,8467,8468,8469, # 8470
+8470,8471,8472,8473,8474,8475,8476,8477,8478,8479,8480,8481,8482,8483,8484,8485, # 8486
+8486,8487,8488,8489,8490,8491,8492,8493,8494,8495,8496,8497,8498,8499,8500,8501, # 8502
+8502,8503,8504,8505,8506,8507,8508,8509,8510,8511,8512,8513,8514,8515,8516,8517, # 8518
+8518,8519,8520,8521,8522,8523,8524,8525,8526,8527,8528,8529,8530,8531,8532,8533, # 8534
+8534,8535,8536,8537,8538,8539,8540,8541,8542,8543,8544,8545,8546,8547,8548,8549, # 8550
+8550,8551,8552,8553,8554,8555,8556,8557,8558,8559,8560,8561,8562,8563,8564,8565, # 8566
+8566,8567,8568,8569,8570,8571,8572,8573,8574,8575,8576,8577,8578,8579,8580,8581, # 8582
+8582,8583,8584,8585,8586,8587,8588,8589,8590,8591,8592,8593,8594,8595,8596,8597, # 8598
+8598,8599,8600,8601,8602,8603,8604,8605,8606,8607,8608,8609,8610,8611,8612,8613, # 8614
+8614,8615,8616,8617,8618,8619,8620,8621,8622,8623,8624,8625,8626,8627,8628,8629, # 8630
+8630,8631,8632,8633,8634,8635,8636,8637,8638,8639,8640,8641,8642,8643,8644,8645, # 8646
+8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,8656,8657,8658,8659,8660,8661, # 8662
+8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,8672,8673,8674,8675,8676,8677, # 8678
+8678,8679,8680,8681,8682,8683,8684,8685,8686,8687,8688,8689,8690,8691,8692,8693, # 8694
+8694,8695,8696,8697,8698,8699,8700,8701,8702,8703,8704,8705,8706,8707,8708,8709, # 8710
+8710,8711,8712,8713,8714,8715,8716,8717,8718,8719,8720,8721,8722,8723,8724,8725, # 8726
+8726,8727,8728,8729,8730,8731,8732,8733,8734,8735,8736,8737,8738,8739,8740,8741) # 8742
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py
new file mode 100644
index 0000000..fe652fe
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py
@@ -0,0 +1,41 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCTWDistributionAnalysis
+from .mbcssm import EUCTWSMModel
+
+class EUCTWProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCTWSMModel)
+        self._mDistributionAnalyzer = EUCTWDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "EUC-TW"
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py
new file mode 100644
index 0000000..1238f51
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py
@@ -0,0 +1,472 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# GB2312 most frequently used character table
+#
+# Char to FreqOrder table , from hz6763
+
+# 512  --> 0.79  -- 0.79
+# 1024 --> 0.92  -- 0.13
+# 2048 --> 0.98  -- 0.06
+# 6768 --> 1.00  -- 0.02
+#
+# Ideal Distribution Ratio = 0.79135/(1-0.79135) = 3.79
+# Random Distribution Ration = 512 / (3755 - 512) = 0.157
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher that RDR
+
+GB2312_TYPICAL_DISTRIBUTION_RATIO = 0.9
+
+GB2312_TABLE_SIZE = 3760
+
+GB2312CharToFreqOrder = (
+1671, 749,1443,2364,3924,3807,2330,3921,1704,3463,2691,1511,1515, 572,3191,2205,
+2361, 224,2558, 479,1711, 963,3162, 440,4060,1905,2966,2947,3580,2647,3961,3842,
+2204, 869,4207, 970,2678,5626,2944,2956,1479,4048, 514,3595, 588,1346,2820,3409,
+ 249,4088,1746,1873,2047,1774, 581,1813, 358,1174,3590,1014,1561,4844,2245, 670,
+1636,3112, 889,1286, 953, 556,2327,3060,1290,3141, 613, 185,3477,1367, 850,3820,
+1715,2428,2642,2303,2732,3041,2562,2648,3566,3946,1349, 388,3098,2091,1360,3585,
+ 152,1687,1539, 738,1559,  59,1232,2925,2267,1388,1249,1741,1679,2960, 151,1566,
+1125,1352,4271, 924,4296, 385,3166,4459, 310,1245,2850,  70,3285,2729,3534,3575,
+2398,3298,3466,1960,2265, 217,3647, 864,1909,2084,4401,2773,1010,3269,5152, 853,
+3051,3121,1244,4251,1895, 364,1499,1540,2313,1180,3655,2268, 562, 715,2417,3061,
+ 544, 336,3768,2380,1752,4075, 950, 280,2425,4382, 183,2759,3272, 333,4297,2155,
+1688,2356,1444,1039,4540, 736,1177,3349,2443,2368,2144,2225, 565, 196,1482,3406,
+ 927,1335,4147, 692, 878,1311,1653,3911,3622,1378,4200,1840,2969,3149,2126,1816,
+2534,1546,2393,2760, 737,2494,  13, 447, 245,2747,  38,2765,2129,2589,1079, 606,
+ 360, 471,3755,2890, 404, 848, 699,1785,1236, 370,2221,1023,3746,2074,2026,2023,
+2388,1581,2119, 812,1141,3091,2536,1519, 804,2053, 406,1596,1090, 784, 548,4414,
+1806,2264,2936,1100, 343,4114,5096, 622,3358, 743,3668,1510,1626,5020,3567,2513,
+3195,4115,5627,2489,2991,  24,2065,2697,1087,2719,  48,1634, 315,  68, 985,2052,
+ 198,2239,1347,1107,1439, 597,2366,2172, 871,3307, 919,2487,2790,1867, 236,2570,
+1413,3794, 906,3365,3381,1701,1982,1818,1524,2924,1205, 616,2586,2072,2004, 575,
+ 253,3099,  32,1365,1182, 197,1714,2454,1201, 554,3388,3224,2748, 756,2587, 250,
+2567,1507,1517,3529,1922,2761,2337,3416,1961,1677,2452,2238,3153, 615, 911,1506,
+1474,2495,1265,1906,2749,3756,3280,2161, 898,2714,1759,3450,2243,2444, 563,  26,
+3286,2266,3769,3344,2707,3677, 611,1402, 531,1028,2871,4548,1375, 261,2948, 835,
+1190,4134, 353, 840,2684,1900,3082,1435,2109,1207,1674, 329,1872,2781,4055,2686,
+2104, 608,3318,2423,2957,2768,1108,3739,3512,3271,3985,2203,1771,3520,1418,2054,
+1681,1153, 225,1627,2929, 162,2050,2511,3687,1954, 124,1859,2431,1684,3032,2894,
+ 585,4805,3969,2869,2704,2088,2032,2095,3656,2635,4362,2209, 256, 518,2042,2105,
+3777,3657, 643,2298,1148,1779, 190, 989,3544, 414,  11,2135,2063,2979,1471, 403,
+3678, 126, 770,1563, 671,2499,3216,2877, 600,1179, 307,2805,4937,1268,1297,2694,
+ 252,4032,1448,1494,1331,1394, 127,2256, 222,1647,1035,1481,3056,1915,1048, 873,
+3651, 210,  33,1608,2516, 200,1520, 415, 102,   0,3389,1287, 817,  91,3299,2940,
+ 836,1814, 549,2197,1396,1669,2987,3582,2297,2848,4528,1070, 687,  20,1819, 121,
+1552,1364,1461,1968,2617,3540,2824,2083, 177, 948,4938,2291, 110,4549,2066, 648,
+3359,1755,2110,2114,4642,4845,1693,3937,3308,1257,1869,2123, 208,1804,3159,2992,
+2531,2549,3361,2418,1350,2347,2800,2568,1291,2036,2680,  72, 842,1990, 212,1233,
+1154,1586,  75,2027,3410,4900,1823,1337,2710,2676, 728,2810,1522,3026,4995, 157,
+ 755,1050,4022, 710, 785,1936,2194,2085,1406,2777,2400, 150,1250,4049,1206, 807,
+1910, 534, 529,3309,1721,1660, 274,  39,2827, 661,2670,1578, 925,3248,3815,1094,
+4278,4901,4252,  41,1150,3747,2572,2227,4501,3658,4902,3813,3357,3617,2884,2258,
+ 887, 538,4187,3199,1294,2439,3042,2329,2343,2497,1255, 107, 543,1527, 521,3478,
+3568, 194,5062,  15, 961,3870,1241,1192,2664,  66,5215,3260,2111,1295,1127,2152,
+3805,4135, 901,1164,1976, 398,1278, 530,1460, 748, 904,1054,1966,1426,  53,2909,
+ 509, 523,2279,1534, 536,1019, 239,1685, 460,2353, 673,1065,2401,3600,4298,2272,
+1272,2363, 284,1753,3679,4064,1695,  81, 815,2677,2757,2731,1386, 859, 500,4221,
+2190,2566, 757,1006,2519,2068,1166,1455, 337,2654,3203,1863,1682,1914,3025,1252,
+1409,1366, 847, 714,2834,2038,3209, 964,2970,1901, 885,2553,1078,1756,3049, 301,
+1572,3326, 688,2130,1996,2429,1805,1648,2930,3421,2750,3652,3088, 262,1158,1254,
+ 389,1641,1812, 526,1719, 923,2073,1073,1902, 468, 489,4625,1140, 857,2375,3070,
+3319,2863, 380, 116,1328,2693,1161,2244, 273,1212,1884,2769,3011,1775,1142, 461,
+3066,1200,2147,2212, 790, 702,2695,4222,1601,1058, 434,2338,5153,3640,  67,2360,
+4099,2502, 618,3472,1329, 416,1132, 830,2782,1807,2653,3211,3510,1662, 192,2124,
+ 296,3979,1739,1611,3684,  23, 118, 324, 446,1239,1225, 293,2520,3814,3795,2535,
+3116,  17,1074, 467,2692,2201, 387,2922,  45,1326,3055,1645,3659,2817, 958, 243,
+1903,2320,1339,2825,1784,3289, 356, 576, 865,2315,2381,3377,3916,1088,3122,1713,
+1655, 935, 628,4689,1034,1327, 441, 800, 720, 894,1979,2183,1528,5289,2702,1071,
+4046,3572,2399,1571,3281,  79, 761,1103, 327, 134, 758,1899,1371,1615, 879, 442,
+ 215,2605,2579, 173,2048,2485,1057,2975,3317,1097,2253,3801,4263,1403,1650,2946,
+ 814,4968,3487,1548,2644,1567,1285,   2, 295,2636,  97, 946,3576, 832, 141,4257,
+3273, 760,3821,3521,3156,2607, 949,1024,1733,1516,1803,1920,2125,2283,2665,3180,
+1501,2064,3560,2171,1592, 803,3518,1416, 732,3897,4258,1363,1362,2458, 119,1427,
+ 602,1525,2608,1605,1639,3175, 694,3064,  10, 465,  76,2000,4846,4208, 444,3781,
+1619,3353,2206,1273,3796, 740,2483, 320,1723,2377,3660,2619,1359,1137,1762,1724,
+2345,2842,1850,1862, 912, 821,1866, 612,2625,1735,2573,3369,1093, 844,  89, 937,
+ 930,1424,3564,2413,2972,1004,3046,3019,2011, 711,3171,1452,4178, 428, 801,1943,
+ 432, 445,2811, 206,4136,1472, 730, 349,  73, 397,2802,2547, 998,1637,1167, 789,
+ 396,3217, 154,1218, 716,1120,1780,2819,4826,1931,3334,3762,2139,1215,2627, 552,
+3664,3628,3232,1405,2383,3111,1356,2652,3577,3320,3101,1703, 640,1045,1370,1246,
+4996, 371,1575,2436,1621,2210, 984,4033,1734,2638,  16,4529, 663,2755,3255,1451,
+3917,2257,1253,1955,2234,1263,2951, 214,1229, 617, 485, 359,1831,1969, 473,2310,
+ 750,2058, 165,  80,2864,2419, 361,4344,2416,2479,1134, 796,3726,1266,2943, 860,
+2715, 938, 390,2734,1313,1384, 248, 202, 877,1064,2854, 522,3907, 279,1602, 297,
+2357, 395,3740, 137,2075, 944,4089,2584,1267,3802,  62,1533,2285, 178, 176, 780,
+2440, 201,3707, 590, 478,1560,4354,2117,1075,  30,  74,4643,4004,1635,1441,2745,
+ 776,2596, 238,1077,1692,1912,2844, 605, 499,1742,3947, 241,3053, 980,1749, 936,
+2640,4511,2582, 515,1543,2162,5322,2892,2993, 890,2148,1924, 665,1827,3581,1032,
+ 968,3163, 339,1044,1896, 270, 583,1791,1720,4367,1194,3488,3669,  43,2523,1657,
+ 163,2167, 290,1209,1622,3378, 550, 634,2508,2510, 695,2634,2384,2512,1476,1414,
+ 220,1469,2341,2138,2852,3183,2900,4939,2865,3502,1211,3680, 854,3227,1299,2976,
+3172, 186,2998,1459, 443,1067,3251,1495, 321,1932,3054, 909, 753,1410,1828, 436,
+2441,1119,1587,3164,2186,1258, 227, 231,1425,1890,3200,3942, 247, 959, 725,5254,
+2741, 577,2158,2079, 929, 120, 174, 838,2813, 591,1115, 417,2024,  40,3240,1536,
+1037, 291,4151,2354, 632,1298,2406,2500,3535,1825,1846,3451, 205,1171, 345,4238,
+  18,1163, 811, 685,2208,1217, 425,1312,1508,1175,4308,2552,1033, 587,1381,3059,
+2984,3482, 340,1316,4023,3972, 792,3176, 519, 777,4690, 918, 933,4130,2981,3741,
+  90,3360,2911,2200,5184,4550, 609,3079,2030, 272,3379,2736, 363,3881,1130,1447,
+ 286, 779, 357,1169,3350,3137,1630,1220,2687,2391, 747,1277,3688,2618,2682,2601,
+1156,3196,5290,4034,3102,1689,3596,3128, 874, 219,2783, 798, 508,1843,2461, 269,
+1658,1776,1392,1913,2983,3287,2866,2159,2372, 829,4076,  46,4253,2873,1889,1894,
+ 915,1834,1631,2181,2318, 298, 664,2818,3555,2735, 954,3228,3117, 527,3511,2173,
+ 681,2712,3033,2247,2346,3467,1652, 155,2164,3382, 113,1994, 450, 899, 494, 994,
+1237,2958,1875,2336,1926,3727, 545,1577,1550, 633,3473, 204,1305,3072,2410,1956,
+2471, 707,2134, 841,2195,2196,2663,3843,1026,4940, 990,3252,4997, 368,1092, 437,
+3212,3258,1933,1829, 675,2977,2893, 412, 943,3723,4644,3294,3283,2230,2373,5154,
+2389,2241,2661,2323,1404,2524, 593, 787, 677,3008,1275,2059, 438,2709,2609,2240,
+2269,2246,1446,  36,1568,1373,3892,1574,2301,1456,3962, 693,2276,5216,2035,1143,
+2720,1919,1797,1811,2763,4137,2597,1830,1699,1488,1198,2090, 424,1694, 312,3634,
+3390,4179,3335,2252,1214, 561,1059,3243,2295,2561, 975,5155,2321,2751,3772, 472,
+1537,3282,3398,1047,2077,2348,2878,1323,3340,3076, 690,2906,  51, 369, 170,3541,
+1060,2187,2688,3670,2541,1083,1683, 928,3918, 459, 109,4427, 599,3744,4286, 143,
+2101,2730,2490,  82,1588,3036,2121, 281,1860, 477,4035,1238,2812,3020,2716,3312,
+1530,2188,2055,1317, 843, 636,1808,1173,3495, 649, 181,1002, 147,3641,1159,2414,
+3750,2289,2795, 813,3123,2610,1136,4368,   5,3391,4541,2174, 420, 429,1728, 754,
+1228,2115,2219, 347,2223,2733, 735,1518,3003,2355,3134,1764,3948,3329,1888,2424,
+1001,1234,1972,3321,3363,1672,1021,1450,1584, 226, 765, 655,2526,3404,3244,2302,
+3665, 731, 594,2184, 319,1576, 621, 658,2656,4299,2099,3864,1279,2071,2598,2739,
+ 795,3086,3699,3908,1707,2352,2402,1382,3136,2475,1465,4847,3496,3865,1085,3004,
+2591,1084, 213,2287,1963,3565,2250, 822, 793,4574,3187,1772,1789,3050, 595,1484,
+1959,2770,1080,2650, 456, 422,2996, 940,3322,4328,4345,3092,2742, 965,2784, 739,
+4124, 952,1358,2498,2949,2565, 332,2698,2378, 660,2260,2473,4194,3856,2919, 535,
+1260,2651,1208,1428,1300,1949,1303,2942, 433,2455,2450,1251,1946, 614,1269, 641,
+1306,1810,2737,3078,2912, 564,2365,1419,1415,1497,4460,2367,2185,1379,3005,1307,
+3218,2175,1897,3063, 682,1157,4040,4005,1712,1160,1941,1399, 394, 402,2952,1573,
+1151,2986,2404, 862, 299,2033,1489,3006, 346, 171,2886,3401,1726,2932, 168,2533,
+  47,2507,1030,3735,1145,3370,1395,1318,1579,3609,4560,2857,4116,1457,2529,1965,
+ 504,1036,2690,2988,2405, 745,5871, 849,2397,2056,3081, 863,2359,3857,2096,  99,
+1397,1769,2300,4428,1643,3455,1978,1757,3718,1440,  35,4879,3742,1296,4228,2280,
+ 160,5063,1599,2013, 166, 520,3479,1646,3345,3012, 490,1937,1545,1264,2182,2505,
+1096,1188,1369,1436,2421,1667,2792,2460,1270,2122, 727,3167,2143, 806,1706,1012,
+1800,3037, 960,2218,1882, 805, 139,2456,1139,1521, 851,1052,3093,3089, 342,2039,
+ 744,5097,1468,1502,1585,2087, 223, 939, 326,2140,2577, 892,2481,1623,4077, 982,
+3708, 135,2131,  87,2503,3114,2326,1106, 876,1616, 547,2997,2831,2093,3441,4530,
+4314,   9,3256,4229,4148, 659,1462,1986,1710,2046,2913,2231,4090,4880,5255,3392,
+3274,1368,3689,4645,1477, 705,3384,3635,1068,1529,2941,1458,3782,1509, 100,1656,
+2548, 718,2339, 408,1590,2780,3548,1838,4117,3719,1345,3530, 717,3442,2778,3220,
+2898,1892,4590,3614,3371,2043,1998,1224,3483, 891, 635, 584,2559,3355, 733,1766,
+1729,1172,3789,1891,2307, 781,2982,2271,1957,1580,5773,2633,2005,4195,3097,1535,
+3213,1189,1934,5693,3262, 586,3118,1324,1598, 517,1564,2217,1868,1893,4445,3728,
+2703,3139,1526,1787,1992,3882,2875,1549,1199,1056,2224,1904,2711,5098,4287, 338,
+1993,3129,3489,2689,1809,2815,1997, 957,1855,3898,2550,3275,3057,1105,1319, 627,
+1505,1911,1883,3526, 698,3629,3456,1833,1431, 746,  77,1261,2017,2296,1977,1885,
+ 125,1334,1600, 525,1798,1109,2222,1470,1945, 559,2236,1186,3443,2476,1929,1411,
+2411,3135,1777,3372,2621,1841,1613,3229, 668,1430,1839,2643,2916, 195,1989,2671,
+2358,1387, 629,3205,2293,5256,4439, 123,1310, 888,1879,4300,3021,3605,1003,1162,
+3192,2910,2010, 140,2395,2859,  55,1082,2012,2901, 662, 419,2081,1438, 680,2774,
+4654,3912,1620,1731,1625,5035,4065,2328, 512,1344, 802,5443,2163,2311,2537, 524,
+3399,  98,1155,2103,1918,2606,3925,2816,1393,2465,1504,3773,2177,3963,1478,4346,
+ 180,1113,4655,3461,2028,1698, 833,2696,1235,1322,1594,4408,3623,3013,3225,2040,
+3022, 541,2881, 607,3632,2029,1665,1219, 639,1385,1686,1099,2803,3231,1938,3188,
+2858, 427, 676,2772,1168,2025, 454,3253,2486,3556, 230,1950, 580, 791,1991,1280,
+1086,1974,2034, 630, 257,3338,2788,4903,1017,  86,4790, 966,2789,1995,1696,1131,
+ 259,3095,4188,1308, 179,1463,5257, 289,4107,1248,  42,3413,1725,2288, 896,1947,
+ 774,4474,4254, 604,3430,4264, 392,2514,2588, 452, 237,1408,3018, 988,4531,1970,
+3034,3310, 540,2370,1562,1288,2990, 502,4765,1147,   4,1853,2708, 207, 294,2814,
+4078,2902,2509, 684,  34,3105,3532,2551, 644, 709,2801,2344, 573,1727,3573,3557,
+2021,1081,3100,4315,2100,3681, 199,2263,1837,2385, 146,3484,1195,2776,3949, 997,
+1939,3973,1008,1091,1202,1962,1847,1149,4209,5444,1076, 493, 117,5400,2521, 972,
+1490,2934,1796,4542,2374,1512,2933,2657, 413,2888,1135,2762,2314,2156,1355,2369,
+ 766,2007,2527,2170,3124,2491,2593,2632,4757,2437, 234,3125,3591,1898,1750,1376,
+1942,3468,3138, 570,2127,2145,3276,4131, 962, 132,1445,4196,  19, 941,3624,3480,
+3366,1973,1374,4461,3431,2629, 283,2415,2275, 808,2887,3620,2112,2563,1353,3610,
+ 955,1089,3103,1053,  96,  88,4097, 823,3808,1583, 399, 292,4091,3313, 421,1128,
+ 642,4006, 903,2539,1877,2082, 596,  29,4066,1790, 722,2157, 130, 995,1569, 769,
+1485, 464, 513,2213, 288,1923,1101,2453,4316, 133, 486,2445,  50, 625, 487,2207,
+  57, 423, 481,2962, 159,3729,1558, 491, 303, 482, 501, 240,2837, 112,3648,2392,
+1783, 362,   8,3433,3422, 610,2793,3277,1390,1284,1654,  21,3823, 734, 367, 623,
+ 193, 287, 374,1009,1483, 816, 476, 313,2255,2340,1262,2150,2899,1146,2581, 782,
+2116,1659,2018,1880, 255,3586,3314,1110,2867,2137,2564, 986,2767,5185,2006, 650,
+ 158, 926, 762, 881,3157,2717,2362,3587, 306,3690,3245,1542,3077,2427,1691,2478,
+2118,2985,3490,2438, 539,2305, 983, 129,1754, 355,4201,2386, 827,2923, 104,1773,
+2838,2771, 411,2905,3919, 376, 767, 122,1114, 828,2422,1817,3506, 266,3460,1007,
+1609,4998, 945,2612,4429,2274, 726,1247,1964,2914,2199,2070,4002,4108, 657,3323,
+1422, 579, 455,2764,4737,1222,2895,1670, 824,1223,1487,2525, 558, 861,3080, 598,
+2659,2515,1967, 752,2583,2376,2214,4180, 977, 704,2464,4999,2622,4109,1210,2961,
+ 819,1541, 142,2284,  44, 418, 457,1126,3730,4347,4626,1644,1876,3671,1864, 302,
+1063,5694, 624, 723,1984,3745,1314,1676,2488,1610,1449,3558,3569,2166,2098, 409,
+1011,2325,3704,2306, 818,1732,1383,1824,1844,3757, 999,2705,3497,1216,1423,2683,
+2426,2954,2501,2726,2229,1475,2554,5064,1971,1794,1666,2014,1343, 783, 724, 191,
+2434,1354,2220,5065,1763,2752,2472,4152, 131, 175,2885,3434,  92,1466,4920,2616,
+3871,3872,3866, 128,1551,1632, 669,1854,3682,4691,4125,1230, 188,2973,3290,1302,
+1213, 560,3266, 917, 763,3909,3249,1760, 868,1958, 764,1782,2097, 145,2277,3774,
+4462,  64,1491,3062, 971,2132,3606,2442, 221,1226,1617, 218, 323,1185,3207,3147,
+ 571, 619,1473,1005,1744,2281, 449,1887,2396,3685, 275, 375,3816,1743,3844,3731,
+ 845,1983,2350,4210,1377, 773, 967,3499,3052,3743,2725,4007,1697,1022,3943,1464,
+3264,2855,2722,1952,1029,2839,2467,  84,4383,2215, 820,1391,2015,2448,3672, 377,
+1948,2168, 797,2545,3536,2578,2645,  94,2874,1678, 405,1259,3071, 771, 546,1315,
+ 470,1243,3083, 895,2468, 981, 969,2037, 846,4181, 653,1276,2928,  14,2594, 557,
+3007,2474, 156, 902,1338,1740,2574, 537,2518, 973,2282,2216,2433,1928, 138,2903,
+1293,2631,1612, 646,3457, 839,2935, 111, 496,2191,2847, 589,3186, 149,3994,2060,
+4031,2641,4067,3145,1870,  37,3597,2136,1025,2051,3009,3383,3549,1121,1016,3261,
+1301, 251,2446,2599,2153, 872,3246, 637, 334,3705, 831, 884, 921,3065,3140,4092,
+2198,1944, 246,2964, 108,2045,1152,1921,2308,1031, 203,3173,4170,1907,3890, 810,
+1401,2003,1690, 506, 647,1242,2828,1761,1649,3208,2249,1589,3709,2931,5156,1708,
+ 498, 666,2613, 834,3817,1231, 184,2851,1124, 883,3197,2261,3710,1765,1553,2658,
+1178,2639,2351,  93,1193, 942,2538,2141,4402, 235,1821, 870,1591,2192,1709,1871,
+3341,1618,4126,2595,2334, 603, 651,  69, 701, 268,2662,3411,2555,1380,1606, 503,
+ 448, 254,2371,2646, 574,1187,2309,1770, 322,2235,1292,1801, 305, 566,1133, 229,
+2067,2057, 706, 167, 483,2002,2672,3295,1820,3561,3067, 316, 378,2746,3452,1112,
+ 136,1981, 507,1651,2917,1117, 285,4591, 182,2580,3522,1304, 335,3303,1835,2504,
+1795,1792,2248, 674,1018,2106,2449,1857,2292,2845, 976,3047,1781,2600,2727,1389,
+1281,  52,3152, 153, 265,3950, 672,3485,3951,4463, 430,1183, 365, 278,2169,  27,
+1407,1336,2304, 209,1340,1730,2202,1852,2403,2883, 979,1737,1062, 631,2829,2542,
+3876,2592, 825,2086,2226,3048,3625, 352,1417,3724, 542, 991, 431,1351,3938,1861,
+2294, 826,1361,2927,3142,3503,1738, 463,2462,2723, 582,1916,1595,2808, 400,3845,
+3891,2868,3621,2254,  58,2492,1123, 910,2160,2614,1372,1603,1196,1072,3385,1700,
+3267,1980, 696, 480,2430, 920, 799,1570,2920,1951,2041,4047,2540,1321,4223,2469,
+3562,2228,1271,2602, 401,2833,3351,2575,5157, 907,2312,1256, 410, 263,3507,1582,
+ 996, 678,1849,2316,1480, 908,3545,2237, 703,2322, 667,1826,2849,1531,2604,2999,
+2407,3146,2151,2630,1786,3711, 469,3542, 497,3899,2409, 858, 837,4446,3393,1274,
+ 786, 620,1845,2001,3311, 484, 308,3367,1204,1815,3691,2332,1532,2557,1842,2020,
+2724,1927,2333,4440, 567,  22,1673,2728,4475,1987,1858,1144,1597, 101,1832,3601,
+  12, 974,3783,4391, 951,1412,   1,3720, 453,4608,4041, 528,1041,1027,3230,2628,
+1129, 875,1051,3291,1203,2262,1069,2860,2799,2149,2615,3278, 144,1758,3040,  31,
+ 475,1680, 366,2685,3184, 311,1642,4008,2466,5036,1593,1493,2809, 216,1420,1668,
+ 233, 304,2128,3284, 232,1429,1768,1040,2008,3407,2740,2967,2543, 242,2133, 778,
+1565,2022,2620, 505,2189,2756,1098,2273, 372,1614, 708, 553,2846,2094,2278, 169,
+3626,2835,4161, 228,2674,3165, 809,1454,1309, 466,1705,1095, 900,3423, 880,2667,
+3751,5258,2317,3109,2571,4317,2766,1503,1342, 866,4447,1118,  63,2076, 314,1881,
+1348,1061, 172, 978,3515,1747, 532, 511,3970,   6, 601, 905,2699,3300,1751, 276,
+1467,3725,2668,  65,4239,2544,2779,2556,1604, 578,2451,1802, 992,2331,2624,1320,
+3446, 713,1513,1013, 103,2786,2447,1661, 886,1702, 916, 654,3574,2031,1556, 751,
+2178,2821,2179,1498,1538,2176, 271, 914,2251,2080,1325, 638,1953,2937,3877,2432,
+2754,  95,3265,1716, 260,1227,4083, 775, 106,1357,3254, 426,1607, 555,2480, 772,
+1985, 244,2546, 474, 495,1046,2611,1851,2061,  71,2089,1675,2590, 742,3758,2843,
+3222,1433, 267,2180,2576,2826,2233,2092,3913,2435, 956,1745,3075, 856,2113,1116,
+ 451,   3,1988,2896,1398, 993,2463,1878,2049,1341,2718,2721,2870,2108, 712,2904,
+4363,2753,2324, 277,2872,2349,2649, 384, 987, 435, 691,3000, 922, 164,3939, 652,
+1500,1184,4153,2482,3373,2165,4848,2335,3775,3508,3154,2806,2830,1554,2102,1664,
+2530,1434,2408, 893,1547,2623,3447,2832,2242,2532,3169,2856,3223,2078,  49,3770,
+3469, 462, 318, 656,2259,3250,3069, 679,1629,2758, 344,1138,1104,3120,1836,1283,
+3115,2154,1437,4448, 934, 759,1999, 794,2862,1038, 533,2560,1722,2342, 855,2626,
+1197,1663,4476,3127,  85,4240,2528,  25,1111,1181,3673, 407,3470,4561,2679,2713,
+ 768,1925,2841,3986,1544,1165, 932, 373,1240,2146,1930,2673, 721,4766, 354,4333,
+ 391,2963, 187,  61,3364,1442,1102, 330,1940,1767, 341,3809,4118, 393,2496,2062,
+2211, 105, 331, 300, 439, 913,1332, 626, 379,3304,1557, 328, 689,3952, 309,1555,
+ 931, 317,2517,3027, 325, 569, 686,2107,3084,  60,1042,1333,2794, 264,3177,4014,
+1628, 258,3712,   7,4464,1176,1043,1778, 683, 114,1975,  78,1492, 383,1886, 510,
+ 386, 645,5291,2891,2069,3305,4138,3867,2939,2603,2493,1935,1066,1848,3588,1015,
+1282,1289,4609, 697,1453,3044,2666,3611,1856,2412,  54, 719,1330, 568,3778,2459,
+1748, 788, 492, 551,1191,1000, 488,3394,3763, 282,1799, 348,2016,1523,3155,2390,
+1049, 382,2019,1788,1170, 729,2968,3523, 897,3926,2785,2938,3292, 350,2319,3238,
+1718,1717,2655,3453,3143,4465, 161,2889,2980,2009,1421,  56,1908,1640,2387,2232,
+1917,1874,2477,4921, 148,  83,3438, 592,4245,2882,1822,1055, 741, 115,1496,1624,
+ 381,1638,4592,1020, 516,3214, 458, 947,4575,1432, 211,1514,2926,1865,2142, 189,
+ 852,1221,1400,1486, 882,2299,4036, 351,  28,1122, 700,6479,6480,6481,6482,6483,  # last 512
+#Everything below is of no interest for detection purpose
+5508,6484,3900,3414,3974,4441,4024,3537,4037,5628,5099,3633,6485,3148,6486,3636,
+5509,3257,5510,5973,5445,5872,4941,4403,3174,4627,5873,6276,2286,4230,5446,5874,
+5122,6102,6103,4162,5447,5123,5323,4849,6277,3980,3851,5066,4246,5774,5067,6278,
+3001,2807,5695,3346,5775,5974,5158,5448,6487,5975,5976,5776,3598,6279,5696,4806,
+4211,4154,6280,6488,6489,6490,6281,4212,5037,3374,4171,6491,4562,4807,4722,4827,
+5977,6104,4532,4079,5159,5324,5160,4404,3858,5359,5875,3975,4288,4610,3486,4512,
+5325,3893,5360,6282,6283,5560,2522,4231,5978,5186,5449,2569,3878,6284,5401,3578,
+4415,6285,4656,5124,5979,2506,4247,4449,3219,3417,4334,4969,4329,6492,4576,4828,
+4172,4416,4829,5402,6286,3927,3852,5361,4369,4830,4477,4867,5876,4173,6493,6105,
+4657,6287,6106,5877,5450,6494,4155,4868,5451,3700,5629,4384,6288,6289,5878,3189,
+4881,6107,6290,6495,4513,6496,4692,4515,4723,5100,3356,6497,6291,3810,4080,5561,
+3570,4430,5980,6498,4355,5697,6499,4724,6108,6109,3764,4050,5038,5879,4093,3226,
+6292,5068,5217,4693,3342,5630,3504,4831,4377,4466,4309,5698,4431,5777,6293,5778,
+4272,3706,6110,5326,3752,4676,5327,4273,5403,4767,5631,6500,5699,5880,3475,5039,
+6294,5562,5125,4348,4301,4482,4068,5126,4593,5700,3380,3462,5981,5563,3824,5404,
+4970,5511,3825,4738,6295,6501,5452,4516,6111,5881,5564,6502,6296,5982,6503,4213,
+4163,3454,6504,6112,4009,4450,6113,4658,6297,6114,3035,6505,6115,3995,4904,4739,
+4563,4942,4110,5040,3661,3928,5362,3674,6506,5292,3612,4791,5565,4149,5983,5328,
+5259,5021,4725,4577,4564,4517,4364,6298,5405,4578,5260,4594,4156,4157,5453,3592,
+3491,6507,5127,5512,4709,4922,5984,5701,4726,4289,6508,4015,6116,5128,4628,3424,
+4241,5779,6299,4905,6509,6510,5454,5702,5780,6300,4365,4923,3971,6511,5161,3270,
+3158,5985,4100, 867,5129,5703,6117,5363,3695,3301,5513,4467,6118,6512,5455,4232,
+4242,4629,6513,3959,4478,6514,5514,5329,5986,4850,5162,5566,3846,4694,6119,5456,
+4869,5781,3779,6301,5704,5987,5515,4710,6302,5882,6120,4392,5364,5705,6515,6121,
+6516,6517,3736,5988,5457,5989,4695,2457,5883,4551,5782,6303,6304,6305,5130,4971,
+6122,5163,6123,4870,3263,5365,3150,4871,6518,6306,5783,5069,5706,3513,3498,4409,
+5330,5632,5366,5458,5459,3991,5990,4502,3324,5991,5784,3696,4518,5633,4119,6519,
+4630,5634,4417,5707,4832,5992,3418,6124,5993,5567,4768,5218,6520,4595,3458,5367,
+6125,5635,6126,4202,6521,4740,4924,6307,3981,4069,4385,6308,3883,2675,4051,3834,
+4302,4483,5568,5994,4972,4101,5368,6309,5164,5884,3922,6127,6522,6523,5261,5460,
+5187,4164,5219,3538,5516,4111,3524,5995,6310,6311,5369,3181,3386,2484,5188,3464,
+5569,3627,5708,6524,5406,5165,4677,4492,6312,4872,4851,5885,4468,5996,6313,5709,
+5710,6128,2470,5886,6314,5293,4882,5785,3325,5461,5101,6129,5711,5786,6525,4906,
+6526,6527,4418,5887,5712,4808,2907,3701,5713,5888,6528,3765,5636,5331,6529,6530,
+3593,5889,3637,4943,3692,5714,5787,4925,6315,6130,5462,4405,6131,6132,6316,5262,
+6531,6532,5715,3859,5716,5070,4696,5102,3929,5788,3987,4792,5997,6533,6534,3920,
+4809,5000,5998,6535,2974,5370,6317,5189,5263,5717,3826,6536,3953,5001,4883,3190,
+5463,5890,4973,5999,4741,6133,6134,3607,5570,6000,4711,3362,3630,4552,5041,6318,
+6001,2950,2953,5637,4646,5371,4944,6002,2044,4120,3429,6319,6537,5103,4833,6538,
+6539,4884,4647,3884,6003,6004,4758,3835,5220,5789,4565,5407,6540,6135,5294,4697,
+4852,6320,6321,3206,4907,6541,6322,4945,6542,6136,6543,6323,6005,4631,3519,6544,
+5891,6545,5464,3784,5221,6546,5571,4659,6547,6324,6137,5190,6548,3853,6549,4016,
+4834,3954,6138,5332,3827,4017,3210,3546,4469,5408,5718,3505,4648,5790,5131,5638,
+5791,5465,4727,4318,6325,6326,5792,4553,4010,4698,3439,4974,3638,4335,3085,6006,
+5104,5042,5166,5892,5572,6327,4356,4519,5222,5573,5333,5793,5043,6550,5639,5071,
+4503,6328,6139,6551,6140,3914,3901,5372,6007,5640,4728,4793,3976,3836,4885,6552,
+4127,6553,4451,4102,5002,6554,3686,5105,6555,5191,5072,5295,4611,5794,5296,6556,
+5893,5264,5894,4975,5466,5265,4699,4976,4370,4056,3492,5044,4886,6557,5795,4432,
+4769,4357,5467,3940,4660,4290,6141,4484,4770,4661,3992,6329,4025,4662,5022,4632,
+4835,4070,5297,4663,4596,5574,5132,5409,5895,6142,4504,5192,4664,5796,5896,3885,
+5575,5797,5023,4810,5798,3732,5223,4712,5298,4084,5334,5468,6143,4052,4053,4336,
+4977,4794,6558,5335,4908,5576,5224,4233,5024,4128,5469,5225,4873,6008,5045,4729,
+4742,4633,3675,4597,6559,5897,5133,5577,5003,5641,5719,6330,6560,3017,2382,3854,
+4406,4811,6331,4393,3964,4946,6561,2420,3722,6562,4926,4378,3247,1736,4442,6332,
+5134,6333,5226,3996,2918,5470,4319,4003,4598,4743,4744,4485,3785,3902,5167,5004,
+5373,4394,5898,6144,4874,1793,3997,6334,4085,4214,5106,5642,4909,5799,6009,4419,
+4189,3330,5899,4165,4420,5299,5720,5227,3347,6145,4081,6335,2876,3930,6146,3293,
+3786,3910,3998,5900,5300,5578,2840,6563,5901,5579,6147,3531,5374,6564,6565,5580,
+4759,5375,6566,6148,3559,5643,6336,6010,5517,6337,6338,5721,5902,3873,6011,6339,
+6567,5518,3868,3649,5722,6568,4771,4947,6569,6149,4812,6570,2853,5471,6340,6341,
+5644,4795,6342,6012,5723,6343,5724,6013,4349,6344,3160,6150,5193,4599,4514,4493,
+5168,4320,6345,4927,3666,4745,5169,5903,5005,4928,6346,5725,6014,4730,4203,5046,
+4948,3395,5170,6015,4150,6016,5726,5519,6347,5047,3550,6151,6348,4197,4310,5904,
+6571,5581,2965,6152,4978,3960,4291,5135,6572,5301,5727,4129,4026,5905,4853,5728,
+5472,6153,6349,4533,2700,4505,5336,4678,3583,5073,2994,4486,3043,4554,5520,6350,
+6017,5800,4487,6351,3931,4103,5376,6352,4011,4321,4311,4190,5136,6018,3988,3233,
+4350,5906,5645,4198,6573,5107,3432,4191,3435,5582,6574,4139,5410,6353,5411,3944,
+5583,5074,3198,6575,6354,4358,6576,5302,4600,5584,5194,5412,6577,6578,5585,5413,
+5303,4248,5414,3879,4433,6579,4479,5025,4854,5415,6355,4760,4772,3683,2978,4700,
+3797,4452,3965,3932,3721,4910,5801,6580,5195,3551,5907,3221,3471,3029,6019,3999,
+5908,5909,5266,5267,3444,3023,3828,3170,4796,5646,4979,4259,6356,5647,5337,3694,
+6357,5648,5338,4520,4322,5802,3031,3759,4071,6020,5586,4836,4386,5048,6581,3571,
+4679,4174,4949,6154,4813,3787,3402,3822,3958,3215,3552,5268,4387,3933,4950,4359,
+6021,5910,5075,3579,6358,4234,4566,5521,6359,3613,5049,6022,5911,3375,3702,3178,
+4911,5339,4521,6582,6583,4395,3087,3811,5377,6023,6360,6155,4027,5171,5649,4421,
+4249,2804,6584,2270,6585,4000,4235,3045,6156,5137,5729,4140,4312,3886,6361,4330,
+6157,4215,6158,3500,3676,4929,4331,3713,4930,5912,4265,3776,3368,5587,4470,4855,
+3038,4980,3631,6159,6160,4132,4680,6161,6362,3923,4379,5588,4255,6586,4121,6587,
+6363,4649,6364,3288,4773,4774,6162,6024,6365,3543,6588,4274,3107,3737,5050,5803,
+4797,4522,5589,5051,5730,3714,4887,5378,4001,4523,6163,5026,5522,4701,4175,2791,
+3760,6589,5473,4224,4133,3847,4814,4815,4775,3259,5416,6590,2738,6164,6025,5304,
+3733,5076,5650,4816,5590,6591,6165,6592,3934,5269,6593,3396,5340,6594,5804,3445,
+3602,4042,4488,5731,5732,3525,5591,4601,5196,6166,6026,5172,3642,4612,3202,4506,
+4798,6366,3818,5108,4303,5138,5139,4776,3332,4304,2915,3415,4434,5077,5109,4856,
+2879,5305,4817,6595,5913,3104,3144,3903,4634,5341,3133,5110,5651,5805,6167,4057,
+5592,2945,4371,5593,6596,3474,4182,6367,6597,6168,4507,4279,6598,2822,6599,4777,
+4713,5594,3829,6169,3887,5417,6170,3653,5474,6368,4216,2971,5228,3790,4579,6369,
+5733,6600,6601,4951,4746,4555,6602,5418,5475,6027,3400,4665,5806,6171,4799,6028,
+5052,6172,3343,4800,4747,5006,6370,4556,4217,5476,4396,5229,5379,5477,3839,5914,
+5652,5807,4714,3068,4635,5808,6173,5342,4192,5078,5419,5523,5734,6174,4557,6175,
+4602,6371,6176,6603,5809,6372,5735,4260,3869,5111,5230,6029,5112,6177,3126,4681,
+5524,5915,2706,3563,4748,3130,6178,4018,5525,6604,6605,5478,4012,4837,6606,4534,
+4193,5810,4857,3615,5479,6030,4082,3697,3539,4086,5270,3662,4508,4931,5916,4912,
+5811,5027,3888,6607,4397,3527,3302,3798,2775,2921,2637,3966,4122,4388,4028,4054,
+1633,4858,5079,3024,5007,3982,3412,5736,6608,3426,3236,5595,3030,6179,3427,3336,
+3279,3110,6373,3874,3039,5080,5917,5140,4489,3119,6374,5812,3405,4494,6031,4666,
+4141,6180,4166,6032,5813,4981,6609,5081,4422,4982,4112,3915,5653,3296,3983,6375,
+4266,4410,5654,6610,6181,3436,5082,6611,5380,6033,3819,5596,4535,5231,5306,5113,
+6612,4952,5918,4275,3113,6613,6376,6182,6183,5814,3073,4731,4838,5008,3831,6614,
+4888,3090,3848,4280,5526,5232,3014,5655,5009,5737,5420,5527,6615,5815,5343,5173,
+5381,4818,6616,3151,4953,6617,5738,2796,3204,4360,2989,4281,5739,5174,5421,5197,
+3132,5141,3849,5142,5528,5083,3799,3904,4839,5480,2880,4495,3448,6377,6184,5271,
+5919,3771,3193,6034,6035,5920,5010,6036,5597,6037,6378,6038,3106,5422,6618,5423,
+5424,4142,6619,4889,5084,4890,4313,5740,6620,3437,5175,5307,5816,4199,5198,5529,
+5817,5199,5656,4913,5028,5344,3850,6185,2955,5272,5011,5818,4567,4580,5029,5921,
+3616,5233,6621,6622,6186,4176,6039,6379,6380,3352,5200,5273,2908,5598,5234,3837,
+5308,6623,6624,5819,4496,4323,5309,5201,6625,6626,4983,3194,3838,4167,5530,5922,
+5274,6381,6382,3860,3861,5599,3333,4292,4509,6383,3553,5481,5820,5531,4778,6187,
+3955,3956,4324,4389,4218,3945,4325,3397,2681,5923,4779,5085,4019,5482,4891,5382,
+5383,6040,4682,3425,5275,4094,6627,5310,3015,5483,5657,4398,5924,3168,4819,6628,
+5925,6629,5532,4932,4613,6041,6630,4636,6384,4780,4204,5658,4423,5821,3989,4683,
+5822,6385,4954,6631,5345,6188,5425,5012,5384,3894,6386,4490,4104,6632,5741,5053,
+6633,5823,5926,5659,5660,5927,6634,5235,5742,5824,4840,4933,4820,6387,4859,5928,
+4955,6388,4143,3584,5825,5346,5013,6635,5661,6389,5014,5484,5743,4337,5176,5662,
+6390,2836,6391,3268,6392,6636,6042,5236,6637,4158,6638,5744,5663,4471,5347,3663,
+4123,5143,4293,3895,6639,6640,5311,5929,5826,3800,6189,6393,6190,5664,5348,3554,
+3594,4749,4603,6641,5385,4801,6043,5827,4183,6642,5312,5426,4761,6394,5665,6191,
+4715,2669,6643,6644,5533,3185,5427,5086,5930,5931,5386,6192,6044,6645,4781,4013,
+5745,4282,4435,5534,4390,4267,6045,5746,4984,6046,2743,6193,3501,4087,5485,5932,
+5428,4184,4095,5747,4061,5054,3058,3862,5933,5600,6646,5144,3618,6395,3131,5055,
+5313,6396,4650,4956,3855,6194,3896,5202,4985,4029,4225,6195,6647,5828,5486,5829,
+3589,3002,6648,6397,4782,5276,6649,6196,6650,4105,3803,4043,5237,5830,6398,4096,
+3643,6399,3528,6651,4453,3315,4637,6652,3984,6197,5535,3182,3339,6653,3096,2660,
+6400,6654,3449,5934,4250,4236,6047,6401,5831,6655,5487,3753,4062,5832,6198,6199,
+6656,3766,6657,3403,4667,6048,6658,4338,2897,5833,3880,2797,3780,4326,6659,5748,
+5015,6660,5387,4351,5601,4411,6661,3654,4424,5935,4339,4072,5277,4568,5536,6402,
+6662,5238,6663,5349,5203,6200,5204,6201,5145,4536,5016,5056,4762,5834,4399,4957,
+6202,6403,5666,5749,6664,4340,6665,5936,5177,5667,6666,6667,3459,4668,6404,6668,
+6669,4543,6203,6670,4276,6405,4480,5537,6671,4614,5205,5668,6672,3348,2193,4763,
+6406,6204,5937,5602,4177,5669,3419,6673,4020,6205,4443,4569,5388,3715,3639,6407,
+6049,4058,6206,6674,5938,4544,6050,4185,4294,4841,4651,4615,5488,6207,6408,6051,
+5178,3241,3509,5835,6208,4958,5836,4341,5489,5278,6209,2823,5538,5350,5206,5429,
+6675,4638,4875,4073,3516,4684,4914,4860,5939,5603,5389,6052,5057,3237,5490,3791,
+6676,6409,6677,4821,4915,4106,5351,5058,4243,5539,4244,5604,4842,4916,5239,3028,
+3716,5837,5114,5605,5390,5940,5430,6210,4332,6678,5540,4732,3667,3840,6053,4305,
+3408,5670,5541,6410,2744,5240,5750,6679,3234,5606,6680,5607,5671,3608,4283,4159,
+4400,5352,4783,6681,6411,6682,4491,4802,6211,6412,5941,6413,6414,5542,5751,6683,
+4669,3734,5942,6684,6415,5943,5059,3328,4670,4144,4268,6685,6686,6687,6688,4372,
+3603,6689,5944,5491,4373,3440,6416,5543,4784,4822,5608,3792,4616,5838,5672,3514,
+5391,6417,4892,6690,4639,6691,6054,5673,5839,6055,6692,6056,5392,6212,4038,5544,
+5674,4497,6057,6693,5840,4284,5675,4021,4545,5609,6418,4454,6419,6213,4113,4472,
+5314,3738,5087,5279,4074,5610,4959,4063,3179,4750,6058,6420,6214,3476,4498,4716,
+5431,4960,4685,6215,5241,6694,6421,6216,6695,5841,5945,6422,3748,5946,5179,3905,
+5752,5545,5947,4374,6217,4455,6423,4412,6218,4803,5353,6696,3832,5280,6219,4327,
+4702,6220,6221,6059,4652,5432,6424,3749,4751,6425,5753,4986,5393,4917,5948,5030,
+5754,4861,4733,6426,4703,6697,6222,4671,5949,4546,4961,5180,6223,5031,3316,5281,
+6698,4862,4295,4934,5207,3644,6427,5842,5950,6428,6429,4570,5843,5282,6430,6224,
+5088,3239,6060,6699,5844,5755,6061,6431,2701,5546,6432,5115,5676,4039,3993,3327,
+4752,4425,5315,6433,3941,6434,5677,4617,4604,3074,4581,6225,5433,6435,6226,6062,
+4823,5756,5116,6227,3717,5678,4717,5845,6436,5679,5846,6063,5847,6064,3977,3354,
+6437,3863,5117,6228,5547,5394,4499,4524,6229,4605,6230,4306,4500,6700,5951,6065,
+3693,5952,5089,4366,4918,6701,6231,5548,6232,6702,6438,4704,5434,6703,6704,5953,
+4168,6705,5680,3420,6706,5242,4407,6066,3812,5757,5090,5954,4672,4525,3481,5681,
+4618,5395,5354,5316,5955,6439,4962,6707,4526,6440,3465,4673,6067,6441,5682,6708,
+5435,5492,5758,5683,4619,4571,4674,4804,4893,4686,5493,4753,6233,6068,4269,6442,
+6234,5032,4705,5146,5243,5208,5848,6235,6443,4963,5033,4640,4226,6236,5849,3387,
+6444,6445,4436,4437,5850,4843,5494,4785,4894,6709,4361,6710,5091,5956,3331,6237,
+4987,5549,6069,6711,4342,3517,4473,5317,6070,6712,6071,4706,6446,5017,5355,6713,
+6714,4988,5436,6447,4734,5759,6715,4735,4547,4456,4754,6448,5851,6449,6450,3547,
+5852,5318,6451,6452,5092,4205,6716,6238,4620,4219,5611,6239,6072,4481,5760,5957,
+5958,4059,6240,6453,4227,4537,6241,5761,4030,4186,5244,5209,3761,4457,4876,3337,
+5495,5181,6242,5959,5319,5612,5684,5853,3493,5854,6073,4169,5613,5147,4895,6074,
+5210,6717,5182,6718,3830,6243,2798,3841,6075,6244,5855,5614,3604,4606,5496,5685,
+5118,5356,6719,6454,5960,5357,5961,6720,4145,3935,4621,5119,5962,4261,6721,6455,
+4786,5963,4375,4582,6245,6246,6247,6076,5437,4877,5856,3376,4380,6248,4160,6722,
+5148,6456,5211,6457,6723,4718,6458,6724,6249,5358,4044,3297,6459,6250,5857,5615,
+5497,5245,6460,5498,6725,6251,6252,5550,3793,5499,2959,5396,6461,6462,4572,5093,
+5500,5964,3806,4146,6463,4426,5762,5858,6077,6253,4755,3967,4220,5965,6254,4989,
+5501,6464,4352,6726,6078,4764,2290,5246,3906,5438,5283,3767,4964,2861,5763,5094,
+6255,6256,4622,5616,5859,5860,4707,6727,4285,4708,4824,5617,6257,5551,4787,5212,
+4965,4935,4687,6465,6728,6466,5686,6079,3494,4413,2995,5247,5966,5618,6729,5967,
+5764,5765,5687,5502,6730,6731,6080,5397,6467,4990,6258,6732,4538,5060,5619,6733,
+4719,5688,5439,5018,5149,5284,5503,6734,6081,4607,6259,5120,3645,5861,4583,6260,
+4584,4675,5620,4098,5440,6261,4863,2379,3306,4585,5552,5689,4586,5285,6735,4864,
+6736,5286,6082,6737,4623,3010,4788,4381,4558,5621,4587,4896,3698,3161,5248,4353,
+4045,6262,3754,5183,4588,6738,6263,6739,6740,5622,3936,6741,6468,6742,6264,5095,
+6469,4991,5968,6743,4992,6744,6083,4897,6745,4256,5766,4307,3108,3968,4444,5287,
+3889,4343,6084,4510,6085,4559,6086,4898,5969,6746,5623,5061,4919,5249,5250,5504,
+5441,6265,5320,4878,3242,5862,5251,3428,6087,6747,4237,5624,5442,6266,5553,4539,
+6748,2585,3533,5398,4262,6088,5150,4736,4438,6089,6267,5505,4966,6749,6268,6750,
+6269,5288,5554,3650,6090,6091,4624,6092,5690,6751,5863,4270,5691,4277,5555,5864,
+6752,5692,4720,4865,6470,5151,4688,4825,6753,3094,6754,6471,3235,4653,6755,5213,
+5399,6756,3201,4589,5865,4967,6472,5866,6473,5019,3016,6757,5321,4756,3957,4573,
+6093,4993,5767,4721,6474,6758,5625,6759,4458,6475,6270,6760,5556,4994,5214,5252,
+6271,3875,5768,6094,5034,5506,4376,5769,6761,2120,6476,5253,5770,6762,5771,5970,
+3990,5971,5557,5558,5772,6477,6095,2787,4641,5972,5121,6096,6097,6272,6763,3703,
+5867,5507,6273,4206,6274,4789,6098,6764,3619,3646,3833,3804,2394,3788,4936,3978,
+4866,4899,6099,6100,5559,6478,6765,3599,5868,6101,5869,5870,6275,6766,4527,6767)
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py
new file mode 100644
index 0000000..0325a2d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py
@@ -0,0 +1,41 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import GB2312DistributionAnalysis
+from .mbcssm import GB2312SMModel
+
+class GB2312Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(GB2312SMModel)
+        self._mDistributionAnalyzer = GB2312DistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "GB2312"
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py
new file mode 100644
index 0000000..ba225c5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py
@@ -0,0 +1,283 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+#          Shy Shalom
+# Portions created by the Initial Developer are Copyright (C) 2005
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .constants import eNotMe, eDetecting
+from .compat import wrap_ord
+
+# This prober doesn't actually recognize a language or a charset.
+# It is a helper prober for the use of the Hebrew model probers
+
+### General ideas of the Hebrew charset recognition ###
+#
+# Four main charsets exist in Hebrew:
+# "ISO-8859-8" - Visual Hebrew
+# "windows-1255" - Logical Hebrew
+# "ISO-8859-8-I" - Logical Hebrew
+# "x-mac-hebrew" - ?? Logical Hebrew ??
+#
+# Both "ISO" charsets use a completely identical set of code points, whereas
+# "windows-1255" and "x-mac-hebrew" are two different proper supersets of
+# these code points. windows-1255 defines additional characters in the range
+# 0x80-0x9F as some misc punctuation marks as well as some Hebrew-specific
+# diacritics and additional 'Yiddish' ligature letters in the range 0xc0-0xd6.
+# x-mac-hebrew defines similar additional code points but with a different
+# mapping.
+#
+# As far as an average Hebrew text with no diacritics is concerned, all four
+# charsets are identical with respect to code points. Meaning that for the
+# main Hebrew alphabet, all four map the same values to all 27 Hebrew letters
+# (including final letters).
+#
+# The dominant difference between these charsets is their directionality.
+# "Visual" directionality means that the text is ordered as if the renderer is
+# not aware of a BIDI rendering algorithm. The renderer sees the text and
+# draws it from left to right. The text itself when ordered naturally is read
+# backwards. A buffer of Visual Hebrew generally looks like so:
+# "[last word of first line spelled backwards] [whole line ordered backwards
+# and spelled backwards] [first word of first line spelled backwards]
+# [end of line] [last word of second line] ... etc' "
+# adding punctuation marks, numbers and English text to visual text is
+# naturally also "visual" and from left to right.
+#
+# "Logical" directionality means the text is ordered "naturally" according to
+# the order it is read. It is the responsibility of the renderer to display
+# the text from right to left. A BIDI algorithm is used to place general
+# punctuation marks, numbers and English text in the text.
+#
+# Texts in x-mac-hebrew are almost impossible to find on the Internet. From
+# what little evidence I could find, it seems that its general directionality
+# is Logical.
+#
+# To sum up all of the above, the Hebrew probing mechanism knows about two
+# charsets:
+# Visual Hebrew - "ISO-8859-8" - backwards text - Words and sentences are
+#    backwards while line order is natural. For charset recognition purposes
+#    the line order is unimportant (In fact, for this implementation, even
+#    word order is unimportant).
+# Logical Hebrew - "windows-1255" - normal, naturally ordered text.
+#
+# "ISO-8859-8-I" is a subset of windows-1255 and doesn't need to be
+#    specifically identified.
+# "x-mac-hebrew" is also identified as windows-1255. A text in x-mac-hebrew
+#    that contain special punctuation marks or diacritics is displayed with
+#    some unconverted characters showing as question marks. This problem might
+#    be corrected using another model prober for x-mac-hebrew. Due to the fact
+#    that x-mac-hebrew texts are so rare, writing another model prober isn't
+#    worth the effort and performance hit.
+#
+#### The Prober ####
+#
+# The prober is divided between two SBCharSetProbers and a HebrewProber,
+# all of which are managed, created, fed data, inquired and deleted by the
+# SBCSGroupProber. The two SBCharSetProbers identify that the text is in
+# fact some kind of Hebrew, Logical or Visual. The final decision about which
+# one is it is made by the HebrewProber by combining final-letter scores
+# with the scores of the two SBCharSetProbers to produce a final answer.
+#
+# The SBCSGroupProber is responsible for stripping the original text of HTML
+# tags, English characters, numbers, low-ASCII punctuation characters, spaces
+# and new lines. It reduces any sequence of such characters to a single space.
+# The buffer fed to each prober in the SBCS group prober is pure text in
+# high-ASCII.
+# The two SBCharSetProbers (model probers) share the same language model:
+# Win1255Model.
+# The first SBCharSetProber uses the model normally as any other
+# SBCharSetProber does, to recognize windows-1255, upon which this model was
+# built. The second SBCharSetProber is told to make the pair-of-letter
+# lookup in the language model backwards. This in practice exactly simulates
+# a visual Hebrew model using the windows-1255 logical Hebrew model.
+#
+# The HebrewProber is not using any language model. All it does is look for
+# final-letter evidence suggesting the text is either logical Hebrew or visual
+# Hebrew. Disjointed from the model probers, the results of the HebrewProber
+# alone are meaningless. HebrewProber always returns 0.00 as confidence
+# since it never identifies a charset by itself. Instead, the pointer to the
+# HebrewProber is passed to the model probers as a helper "Name Prober".
+# When the Group prober receives a positive identification from any prober,
+# it asks for the name of the charset identified. If the prober queried is a
+# Hebrew model prober, the model prober forwards the call to the
+# HebrewProber to make the final decision. In the HebrewProber, the
+# decision is made according to the final-letters scores maintained and Both
+# model probers scores. The answer is returned in the form of the name of the
+# charset identified, either "windows-1255" or "ISO-8859-8".
+
+# windows-1255 / ISO-8859-8 code points of interest
+FINAL_KAF = 0xea
+NORMAL_KAF = 0xeb
+FINAL_MEM = 0xed
+NORMAL_MEM = 0xee
+FINAL_NUN = 0xef
+NORMAL_NUN = 0xf0
+FINAL_PE = 0xf3
+NORMAL_PE = 0xf4
+FINAL_TSADI = 0xf5
+NORMAL_TSADI = 0xf6
+
+# Minimum Visual vs Logical final letter score difference.
+# If the difference is below this, don't rely solely on the final letter score
+# distance.
+MIN_FINAL_CHAR_DISTANCE = 5
+
+# Minimum Visual vs Logical model score difference.
+# If the difference is below this, don't rely at all on the model score
+# distance.
+MIN_MODEL_DISTANCE = 0.01
+
+VISUAL_HEBREW_NAME = "ISO-8859-8"
+LOGICAL_HEBREW_NAME = "windows-1255"
+
+
+class HebrewProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mLogicalProber = None
+        self._mVisualProber = None
+        self.reset()
+
+    def reset(self):
+        self._mFinalCharLogicalScore = 0
+        self._mFinalCharVisualScore = 0
+        # The two last characters seen in the previous buffer,
+        # mPrev and mBeforePrev are initialized to space in order to simulate
+        # a word delimiter at the beginning of the data
+        self._mPrev = ' '
+        self._mBeforePrev = ' '
+        # These probers are owned by the group prober.
+
+    def set_model_probers(self, logicalProber, visualProber):
+        self._mLogicalProber = logicalProber
+        self._mVisualProber = visualProber
+
+    def is_final(self, c):
+        return wrap_ord(c) in [FINAL_KAF, FINAL_MEM, FINAL_NUN, FINAL_PE,
+                               FINAL_TSADI]
+
+    def is_non_final(self, c):
+        # The normal Tsadi is not a good Non-Final letter due to words like
+        # 'lechotet' (to chat) containing an apostrophe after the tsadi. This
+        # apostrophe is converted to a space in FilterWithoutEnglishLetters
+        # causing the Non-Final tsadi to appear at an end of a word even
+        # though this is not the case in the original text.
+        # The letters Pe and Kaf rarely display a related behavior of not being
+        # a good Non-Final letter. Words like 'Pop', 'Winamp' and 'Mubarak'
+        # for example legally end with a Non-Final Pe or Kaf. However, the
+        # benefit of these letters as Non-Final letters outweighs the damage
+        # since these words are quite rare.
+        return wrap_ord(c) in [NORMAL_KAF, NORMAL_MEM, NORMAL_NUN, NORMAL_PE]
+
+    def feed(self, aBuf):
+        # Final letter analysis for logical-visual decision.
+        # Look for evidence that the received buffer is either logical Hebrew
+        # or visual Hebrew.
+        # The following cases are checked:
+        # 1) A word longer than 1 letter, ending with a final letter. This is
+        #    an indication that the text is laid out "naturally" since the
+        #    final letter really appears at the end. +1 for logical score.
+        # 2) A word longer than 1 letter, ending with a Non-Final letter. In
+        #    normal Hebrew, words ending with Kaf, Mem, Nun, Pe or Tsadi,
+        #    should not end with the Non-Final form of that letter. Exceptions
+        #    to this rule are mentioned above in isNonFinal(). This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score
+        # 3) A word longer than 1 letter, starting with a final letter. Final
+        #    letters should not appear at the beginning of a word. This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score.
+        #
+        # The visual score and logical score are accumulated throughout the
+        # text and are finally checked against each other in GetCharSetName().
+        # No checking for final letters in the middle of words is done since
+        # that case is not an indication for either Logical or Visual text.
+        #
+        # We automatically filter out all 7-bit characters (replace them with
+        # spaces) so the word boundary detection works properly. [MAP]
+
+        if self.get_state() == eNotMe:
+            # Both model probers say it's not them. No reason to continue.
+            return eNotMe
+
+        aBuf = self.filter_high_bit_only(aBuf)
+
+        for cur in aBuf:
+            if cur == ' ':
+                # We stand on a space - a word just ended
+                if self._mBeforePrev != ' ':
+                    # next-to-last char was not a space so self._mPrev is not a
+                    # 1 letter word
+                    if self.is_final(self._mPrev):
+                        # case (1) [-2:not space][-1:final letter][cur:space]
+                        self._mFinalCharLogicalScore += 1
+                    elif self.is_non_final(self._mPrev):
+                        # case (2) [-2:not space][-1:Non-Final letter][
+                        #  cur:space]
+                        self._mFinalCharVisualScore += 1
+            else:
+                # Not standing on a space
+                if ((self._mBeforePrev == ' ') and
+                        (self.is_final(self._mPrev)) and (cur != ' ')):
+                    # case (3) [-2:space][-1:final letter][cur:not space]
+                    self._mFinalCharVisualScore += 1
+            self._mBeforePrev = self._mPrev
+            self._mPrev = cur
+
+        # Forever detecting, till the end or until both model probers return
+        # eNotMe (handled above)
+        return eDetecting
+
+    def get_charset_name(self):
+        # Make the decision: is it Logical or Visual?
+        # If the final letter score distance is dominant enough, rely on it.
+        finalsub = self._mFinalCharLogicalScore - self._mFinalCharVisualScore
+        if finalsub >= MIN_FINAL_CHAR_DISTANCE:
+            return LOGICAL_HEBREW_NAME
+        if finalsub <= -MIN_FINAL_CHAR_DISTANCE:
+            return VISUAL_HEBREW_NAME
+
+        # It's not dominant enough, try to rely on the model scores instead.
+        modelsub = (self._mLogicalProber.get_confidence()
+                    - self._mVisualProber.get_confidence())
+        if modelsub > MIN_MODEL_DISTANCE:
+            return LOGICAL_HEBREW_NAME
+        if modelsub < -MIN_MODEL_DISTANCE:
+            return VISUAL_HEBREW_NAME
+
+        # Still no good, back to final letter distance, maybe it'll save the
+        # day.
+        if finalsub < 0.0:
+            return VISUAL_HEBREW_NAME
+
+        # (finalsub > 0 - Logical) or (don't know what to do) default to
+        # Logical.
+        return LOGICAL_HEBREW_NAME
+
+    def get_state(self):
+        # Remain active as long as any of the model probers are active.
+        if (self._mLogicalProber.get_state() == eNotMe) and \
+           (self._mVisualProber.get_state() == eNotMe):
+            return eNotMe
+        return eDetecting
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py
new file mode 100644
index 0000000..064345b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py
@@ -0,0 +1,569 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+#
+# Japanese frequency table, applied to both S-JIS and EUC-JP
+# They are sorted in order.
+
+# 128  --> 0.77094
+# 256  --> 0.85710
+# 512  --> 0.92635
+# 1024 --> 0.97130
+# 2048 --> 0.99431
+#
+# Ideal Distribution Ratio = 0.92635 / (1-0.92635) = 12.58
+# Random Distribution Ration = 512 / (2965+62+83+86-512) = 0.191
+#
+# Typical Distribution Ratio, 25% of IDR
+
+JIS_TYPICAL_DISTRIBUTION_RATIO = 3.0
+
+# Char to FreqOrder table ,
+JIS_TABLE_SIZE = 4368
+
+JISCharToFreqOrder = (
+  40,   1,   6, 182, 152, 180, 295,2127, 285, 381,3295,4304,3068,4606,3165,3510, #   16
+3511,1822,2785,4607,1193,2226,5070,4608, 171,2996,1247,  18, 179,5071, 856,1661, #   32
+1262,5072, 619, 127,3431,3512,3230,1899,1700, 232, 228,1294,1298, 284, 283,2041, #   48
+2042,1061,1062,  48,  49,  44,  45, 433, 434,1040,1041, 996, 787,2997,1255,4305, #   64
+2108,4609,1684,1648,5073,5074,5075,5076,5077,5078,3687,5079,4610,5080,3927,3928, #   80
+5081,3296,3432, 290,2285,1471,2187,5082,2580,2825,1303,2140,1739,1445,2691,3375, #   96
+1691,3297,4306,4307,4611, 452,3376,1182,2713,3688,3069,4308,5083,5084,5085,5086, #  112
+5087,5088,5089,5090,5091,5092,5093,5094,5095,5096,5097,5098,5099,5100,5101,5102, #  128
+5103,5104,5105,5106,5107,5108,5109,5110,5111,5112,4097,5113,5114,5115,5116,5117, #  144
+5118,5119,5120,5121,5122,5123,5124,5125,5126,5127,5128,5129,5130,5131,5132,5133, #  160
+5134,5135,5136,5137,5138,5139,5140,5141,5142,5143,5144,5145,5146,5147,5148,5149, #  176
+5150,5151,5152,4612,5153,5154,5155,5156,5157,5158,5159,5160,5161,5162,5163,5164, #  192
+5165,5166,5167,5168,5169,5170,5171,5172,5173,5174,5175,1472, 598, 618, 820,1205, #  208
+1309,1412,1858,1307,1692,5176,5177,5178,5179,5180,5181,5182,1142,1452,1234,1172, #  224
+1875,2043,2149,1793,1382,2973, 925,2404,1067,1241, 960,1377,2935,1491, 919,1217, #  240
+1865,2030,1406,1499,2749,4098,5183,5184,5185,5186,5187,5188,2561,4099,3117,1804, #  256
+2049,3689,4309,3513,1663,5189,3166,3118,3298,1587,1561,3433,5190,3119,1625,2998, #  272
+3299,4613,1766,3690,2786,4614,5191,5192,5193,5194,2161,  26,3377,   2,3929,  20, #  288
+3691,  47,4100,  50,  17,  16,  35, 268,  27, 243,  42, 155,  24, 154,  29, 184, #  304
+   4,  91,  14,  92,  53, 396,  33, 289,   9,  37,  64, 620,  21,  39, 321,   5, #  320
+  12,  11,  52,  13,   3, 208, 138,   0,   7,  60, 526, 141, 151,1069, 181, 275, #  336
+1591,  83, 132,1475, 126, 331, 829,  15,  69, 160,  59,  22, 157,  55,1079, 312, #  352
+ 109,  38,  23,  25,  10,  19,  79,5195,  61, 382,1124,   8,  30,5196,5197,5198, #  368
+5199,5200,5201,5202,5203,5204,5205,5206,  89,  62,  74,  34,2416, 112, 139, 196, #  384
+ 271, 149,  84, 607, 131, 765,  46,  88, 153, 683,  76, 874, 101, 258,  57,  80, #  400
+  32, 364, 121,1508, 169,1547,  68, 235, 145,2999,  41, 360,3027,  70,  63,  31, #  416
+  43, 259, 262,1383,  99, 533, 194,  66,  93, 846, 217, 192,  56, 106,  58, 565, #  432
+ 280, 272, 311, 256, 146,  82, 308,  71, 100, 128, 214, 655, 110, 261, 104,1140, #  448
+  54,  51,  36,  87,  67,3070, 185,2618,2936,2020,  28,1066,2390,2059,5207,5208, #  464
+5209,5210,5211,5212,5213,5214,5215,5216,4615,5217,5218,5219,5220,5221,5222,5223, #  480
+5224,5225,5226,5227,5228,5229,5230,5231,5232,5233,5234,5235,5236,3514,5237,5238, #  496
+5239,5240,5241,5242,5243,5244,2297,2031,4616,4310,3692,5245,3071,5246,3598,5247, #  512
+4617,3231,3515,5248,4101,4311,4618,3808,4312,4102,5249,4103,4104,3599,5250,5251, #  528
+5252,5253,5254,5255,5256,5257,5258,5259,5260,5261,5262,5263,5264,5265,5266,5267, #  544
+5268,5269,5270,5271,5272,5273,5274,5275,5276,5277,5278,5279,5280,5281,5282,5283, #  560
+5284,5285,5286,5287,5288,5289,5290,5291,5292,5293,5294,5295,5296,5297,5298,5299, #  576
+5300,5301,5302,5303,5304,5305,5306,5307,5308,5309,5310,5311,5312,5313,5314,5315, #  592
+5316,5317,5318,5319,5320,5321,5322,5323,5324,5325,5326,5327,5328,5329,5330,5331, #  608
+5332,5333,5334,5335,5336,5337,5338,5339,5340,5341,5342,5343,5344,5345,5346,5347, #  624
+5348,5349,5350,5351,5352,5353,5354,5355,5356,5357,5358,5359,5360,5361,5362,5363, #  640
+5364,5365,5366,5367,5368,5369,5370,5371,5372,5373,5374,5375,5376,5377,5378,5379, #  656
+5380,5381, 363, 642,2787,2878,2788,2789,2316,3232,2317,3434,2011, 165,1942,3930, #  672
+3931,3932,3933,5382,4619,5383,4620,5384,5385,5386,5387,5388,5389,5390,5391,5392, #  688
+5393,5394,5395,5396,5397,5398,5399,5400,5401,5402,5403,5404,5405,5406,5407,5408, #  704
+5409,5410,5411,5412,5413,5414,5415,5416,5417,5418,5419,5420,5421,5422,5423,5424, #  720
+5425,5426,5427,5428,5429,5430,5431,5432,5433,5434,5435,5436,5437,5438,5439,5440, #  736
+5441,5442,5443,5444,5445,5446,5447,5448,5449,5450,5451,5452,5453,5454,5455,5456, #  752
+5457,5458,5459,5460,5461,5462,5463,5464,5465,5466,5467,5468,5469,5470,5471,5472, #  768
+5473,5474,5475,5476,5477,5478,5479,5480,5481,5482,5483,5484,5485,5486,5487,5488, #  784
+5489,5490,5491,5492,5493,5494,5495,5496,5497,5498,5499,5500,5501,5502,5503,5504, #  800
+5505,5506,5507,5508,5509,5510,5511,5512,5513,5514,5515,5516,5517,5518,5519,5520, #  816
+5521,5522,5523,5524,5525,5526,5527,5528,5529,5530,5531,5532,5533,5534,5535,5536, #  832
+5537,5538,5539,5540,5541,5542,5543,5544,5545,5546,5547,5548,5549,5550,5551,5552, #  848
+5553,5554,5555,5556,5557,5558,5559,5560,5561,5562,5563,5564,5565,5566,5567,5568, #  864
+5569,5570,5571,5572,5573,5574,5575,5576,5577,5578,5579,5580,5581,5582,5583,5584, #  880
+5585,5586,5587,5588,5589,5590,5591,5592,5593,5594,5595,5596,5597,5598,5599,5600, #  896
+5601,5602,5603,5604,5605,5606,5607,5608,5609,5610,5611,5612,5613,5614,5615,5616, #  912
+5617,5618,5619,5620,5621,5622,5623,5624,5625,5626,5627,5628,5629,5630,5631,5632, #  928
+5633,5634,5635,5636,5637,5638,5639,5640,5641,5642,5643,5644,5645,5646,5647,5648, #  944
+5649,5650,5651,5652,5653,5654,5655,5656,5657,5658,5659,5660,5661,5662,5663,5664, #  960
+5665,5666,5667,5668,5669,5670,5671,5672,5673,5674,5675,5676,5677,5678,5679,5680, #  976
+5681,5682,5683,5684,5685,5686,5687,5688,5689,5690,5691,5692,5693,5694,5695,5696, #  992
+5697,5698,5699,5700,5701,5702,5703,5704,5705,5706,5707,5708,5709,5710,5711,5712, # 1008
+5713,5714,5715,5716,5717,5718,5719,5720,5721,5722,5723,5724,5725,5726,5727,5728, # 1024
+5729,5730,5731,5732,5733,5734,5735,5736,5737,5738,5739,5740,5741,5742,5743,5744, # 1040
+5745,5746,5747,5748,5749,5750,5751,5752,5753,5754,5755,5756,5757,5758,5759,5760, # 1056
+5761,5762,5763,5764,5765,5766,5767,5768,5769,5770,5771,5772,5773,5774,5775,5776, # 1072
+5777,5778,5779,5780,5781,5782,5783,5784,5785,5786,5787,5788,5789,5790,5791,5792, # 1088
+5793,5794,5795,5796,5797,5798,5799,5800,5801,5802,5803,5804,5805,5806,5807,5808, # 1104
+5809,5810,5811,5812,5813,5814,5815,5816,5817,5818,5819,5820,5821,5822,5823,5824, # 1120
+5825,5826,5827,5828,5829,5830,5831,5832,5833,5834,5835,5836,5837,5838,5839,5840, # 1136
+5841,5842,5843,5844,5845,5846,5847,5848,5849,5850,5851,5852,5853,5854,5855,5856, # 1152
+5857,5858,5859,5860,5861,5862,5863,5864,5865,5866,5867,5868,5869,5870,5871,5872, # 1168
+5873,5874,5875,5876,5877,5878,5879,5880,5881,5882,5883,5884,5885,5886,5887,5888, # 1184
+5889,5890,5891,5892,5893,5894,5895,5896,5897,5898,5899,5900,5901,5902,5903,5904, # 1200
+5905,5906,5907,5908,5909,5910,5911,5912,5913,5914,5915,5916,5917,5918,5919,5920, # 1216
+5921,5922,5923,5924,5925,5926,5927,5928,5929,5930,5931,5932,5933,5934,5935,5936, # 1232
+5937,5938,5939,5940,5941,5942,5943,5944,5945,5946,5947,5948,5949,5950,5951,5952, # 1248
+5953,5954,5955,5956,5957,5958,5959,5960,5961,5962,5963,5964,5965,5966,5967,5968, # 1264
+5969,5970,5971,5972,5973,5974,5975,5976,5977,5978,5979,5980,5981,5982,5983,5984, # 1280
+5985,5986,5987,5988,5989,5990,5991,5992,5993,5994,5995,5996,5997,5998,5999,6000, # 1296
+6001,6002,6003,6004,6005,6006,6007,6008,6009,6010,6011,6012,6013,6014,6015,6016, # 1312
+6017,6018,6019,6020,6021,6022,6023,6024,6025,6026,6027,6028,6029,6030,6031,6032, # 1328
+6033,6034,6035,6036,6037,6038,6039,6040,6041,6042,6043,6044,6045,6046,6047,6048, # 1344
+6049,6050,6051,6052,6053,6054,6055,6056,6057,6058,6059,6060,6061,6062,6063,6064, # 1360
+6065,6066,6067,6068,6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080, # 1376
+6081,6082,6083,6084,6085,6086,6087,6088,6089,6090,6091,6092,6093,6094,6095,6096, # 1392
+6097,6098,6099,6100,6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112, # 1408
+6113,6114,2044,2060,4621, 997,1235, 473,1186,4622, 920,3378,6115,6116, 379,1108, # 1424
+4313,2657,2735,3934,6117,3809, 636,3233, 573,1026,3693,3435,2974,3300,2298,4105, # 1440
+ 854,2937,2463, 393,2581,2417, 539, 752,1280,2750,2480, 140,1161, 440, 708,1569, # 1456
+ 665,2497,1746,1291,1523,3000, 164,1603, 847,1331, 537,1997, 486, 508,1693,2418, # 1472
+1970,2227, 878,1220, 299,1030, 969, 652,2751, 624,1137,3301,2619,  65,3302,2045, # 1488
+1761,1859,3120,1930,3694,3516, 663,1767, 852, 835,3695, 269, 767,2826,2339,1305, # 1504
+ 896,1150, 770,1616,6118, 506,1502,2075,1012,2519, 775,2520,2975,2340,2938,4314, # 1520
+3028,2086,1224,1943,2286,6119,3072,4315,2240,1273,1987,3935,1557, 175, 597, 985, # 1536
+3517,2419,2521,1416,3029, 585, 938,1931,1007,1052,1932,1685,6120,3379,4316,4623, # 1552
+ 804, 599,3121,1333,2128,2539,1159,1554,2032,3810, 687,2033,2904, 952, 675,1467, # 1568
+3436,6121,2241,1096,1786,2440,1543,1924, 980,1813,2228, 781,2692,1879, 728,1918, # 1584
+3696,4624, 548,1950,4625,1809,1088,1356,3303,2522,1944, 502, 972, 373, 513,2827, # 1600
+ 586,2377,2391,1003,1976,1631,6122,2464,1084, 648,1776,4626,2141, 324, 962,2012, # 1616
+2177,2076,1384, 742,2178,1448,1173,1810, 222, 102, 301, 445, 125,2420, 662,2498, # 1632
+ 277, 200,1476,1165,1068, 224,2562,1378,1446, 450,1880, 659, 791, 582,4627,2939, # 1648
+3936,1516,1274, 555,2099,3697,1020,1389,1526,3380,1762,1723,1787,2229, 412,2114, # 1664
+1900,2392,3518, 512,2597, 427,1925,2341,3122,1653,1686,2465,2499, 697, 330, 273, # 1680
+ 380,2162, 951, 832, 780, 991,1301,3073, 965,2270,3519, 668,2523,2636,1286, 535, # 1696
+1407, 518, 671, 957,2658,2378, 267, 611,2197,3030,6123, 248,2299, 967,1799,2356, # 1712
+ 850,1418,3437,1876,1256,1480,2828,1718,6124,6125,1755,1664,2405,6126,4628,2879, # 1728
+2829, 499,2179, 676,4629, 557,2329,2214,2090, 325,3234, 464, 811,3001, 992,2342, # 1744
+2481,1232,1469, 303,2242, 466,1070,2163, 603,1777,2091,4630,2752,4631,2714, 322, # 1760
+2659,1964,1768, 481,2188,1463,2330,2857,3600,2092,3031,2421,4632,2318,2070,1849, # 1776
+2598,4633,1302,2254,1668,1701,2422,3811,2905,3032,3123,2046,4106,1763,1694,4634, # 1792
+1604, 943,1724,1454, 917, 868,2215,1169,2940, 552,1145,1800,1228,1823,1955, 316, # 1808
+1080,2510, 361,1807,2830,4107,2660,3381,1346,1423,1134,4108,6127, 541,1263,1229, # 1824
+1148,2540, 545, 465,1833,2880,3438,1901,3074,2482, 816,3937, 713,1788,2500, 122, # 1840
+1575, 195,1451,2501,1111,6128, 859, 374,1225,2243,2483,4317, 390,1033,3439,3075, # 1856
+2524,1687, 266, 793,1440,2599, 946, 779, 802, 507, 897,1081, 528,2189,1292, 711, # 1872
+1866,1725,1167,1640, 753, 398,2661,1053, 246, 348,4318, 137,1024,3440,1600,2077, # 1888
+2129, 825,4319, 698, 238, 521, 187,2300,1157,2423,1641,1605,1464,1610,1097,2541, # 1904
+1260,1436, 759,2255,1814,2150, 705,3235, 409,2563,3304, 561,3033,2005,2564, 726, # 1920
+1956,2343,3698,4109, 949,3812,3813,3520,1669, 653,1379,2525, 881,2198, 632,2256, # 1936
+1027, 778,1074, 733,1957, 514,1481,2466, 554,2180, 702,3938,1606,1017,1398,6129, # 1952
+1380,3521, 921, 993,1313, 594, 449,1489,1617,1166, 768,1426,1360, 495,1794,3601, # 1968
+1177,3602,1170,4320,2344, 476, 425,3167,4635,3168,1424, 401,2662,1171,3382,1998, # 1984
+1089,4110, 477,3169, 474,6130,1909, 596,2831,1842, 494, 693,1051,1028,1207,3076, # 2000
+ 606,2115, 727,2790,1473,1115, 743,3522, 630, 805,1532,4321,2021, 366,1057, 838, # 2016
+ 684,1114,2142,4322,2050,1492,1892,1808,2271,3814,2424,1971,1447,1373,3305,1090, # 2032
+1536,3939,3523,3306,1455,2199, 336, 369,2331,1035, 584,2393, 902, 718,2600,6131, # 2048
+2753, 463,2151,1149,1611,2467, 715,1308,3124,1268, 343,1413,3236,1517,1347,2663, # 2064
+2093,3940,2022,1131,1553,2100,2941,1427,3441,2942,1323,2484,6132,1980, 872,2368, # 2080
+2441,2943, 320,2369,2116,1082, 679,1933,3941,2791,3815, 625,1143,2023, 422,2200, # 2096
+3816,6133, 730,1695, 356,2257,1626,2301,2858,2637,1627,1778, 937, 883,2906,2693, # 2112
+3002,1769,1086, 400,1063,1325,3307,2792,4111,3077, 456,2345,1046, 747,6134,1524, # 2128
+ 884,1094,3383,1474,2164,1059, 974,1688,2181,2258,1047, 345,1665,1187, 358, 875, # 2144
+3170, 305, 660,3524,2190,1334,1135,3171,1540,1649,2542,1527, 927, 968,2793, 885, # 2160
+1972,1850, 482, 500,2638,1218,1109,1085,2543,1654,2034, 876,  78,2287,1482,1277, # 2176
+ 861,1675,1083,1779, 724,2754, 454, 397,1132,1612,2332, 893, 672,1237, 257,2259, # 2192
+2370, 135,3384, 337,2244, 547, 352, 340, 709,2485,1400, 788,1138,2511, 540, 772, # 2208
+1682,2260,2272,2544,2013,1843,1902,4636,1999,1562,2288,4637,2201,1403,1533, 407, # 2224
+ 576,3308,1254,2071, 978,3385, 170, 136,1201,3125,2664,3172,2394, 213, 912, 873, # 2240
+3603,1713,2202, 699,3604,3699, 813,3442, 493, 531,1054, 468,2907,1483, 304, 281, # 2256
+4112,1726,1252,2094, 339,2319,2130,2639, 756,1563,2944, 748, 571,2976,1588,2425, # 2272
+2715,1851,1460,2426,1528,1392,1973,3237, 288,3309, 685,3386, 296, 892,2716,2216, # 2288
+1570,2245, 722,1747,2217, 905,3238,1103,6135,1893,1441,1965, 251,1805,2371,3700, # 2304
+2601,1919,1078,  75,2182,1509,1592,1270,2640,4638,2152,6136,3310,3817, 524, 706, # 2320
+1075, 292,3818,1756,2602, 317,  98,3173,3605,3525,1844,2218,3819,2502, 814, 567, # 2336
+ 385,2908,1534,6137, 534,1642,3239, 797,6138,1670,1529, 953,4323, 188,1071, 538, # 2352
+ 178, 729,3240,2109,1226,1374,2000,2357,2977, 731,2468,1116,2014,2051,6139,1261, # 2368
+1593, 803,2859,2736,3443, 556, 682, 823,1541,6140,1369,2289,1706,2794, 845, 462, # 2384
+2603,2665,1361, 387, 162,2358,1740, 739,1770,1720,1304,1401,3241,1049, 627,1571, # 2400
+2427,3526,1877,3942,1852,1500, 431,1910,1503, 677, 297,2795, 286,1433,1038,1198, # 2416
+2290,1133,1596,4113,4639,2469,1510,1484,3943,6141,2442, 108, 712,4640,2372, 866, # 2432
+3701,2755,3242,1348, 834,1945,1408,3527,2395,3243,1811, 824, 994,1179,2110,1548, # 2448
+1453, 790,3003, 690,4324,4325,2832,2909,3820,1860,3821, 225,1748, 310, 346,1780, # 2464
+2470, 821,1993,2717,2796, 828, 877,3528,2860,2471,1702,2165,2910,2486,1789, 453, # 2480
+ 359,2291,1676,  73,1164,1461,1127,3311, 421, 604, 314,1037, 589, 116,2487, 737, # 2496
+ 837,1180, 111, 244, 735,6142,2261,1861,1362, 986, 523, 418, 581,2666,3822, 103, # 2512
+ 855, 503,1414,1867,2488,1091, 657,1597, 979, 605,1316,4641,1021,2443,2078,2001, # 2528
+1209,  96, 587,2166,1032, 260,1072,2153, 173,  94, 226,3244, 819,2006,4642,4114, # 2544
+2203, 231,1744, 782,  97,2667, 786,3387, 887, 391, 442,2219,4326,1425,6143,2694, # 2560
+ 633,1544,1202, 483,2015, 592,2052,1958,2472,1655, 419, 129,4327,3444,3312,1714, # 2576
+1257,3078,4328,1518,1098, 865,1310,1019,1885,1512,1734, 469,2444, 148, 773, 436, # 2592
+1815,1868,1128,1055,4329,1245,2756,3445,2154,1934,1039,4643, 579,1238, 932,2320, # 2608
+ 353, 205, 801, 115,2428, 944,2321,1881, 399,2565,1211, 678, 766,3944, 335,2101, # 2624
+1459,1781,1402,3945,2737,2131,1010, 844, 981,1326,1013, 550,1816,1545,2620,1335, # 2640
+1008, 371,2881, 936,1419,1613,3529,1456,1395,2273,1834,2604,1317,2738,2503, 416, # 2656
+1643,4330, 806,1126, 229, 591,3946,1314,1981,1576,1837,1666, 347,1790, 977,3313, # 2672
+ 764,2861,1853, 688,2429,1920,1462,  77, 595, 415,2002,3034, 798,1192,4115,6144, # 2688
+2978,4331,3035,2695,2582,2072,2566, 430,2430,1727, 842,1396,3947,3702, 613, 377, # 2704
+ 278, 236,1417,3388,3314,3174, 757,1869, 107,3530,6145,1194, 623,2262, 207,1253, # 2720
+2167,3446,3948, 492,1117,1935, 536,1838,2757,1246,4332, 696,2095,2406,1393,1572, # 2736
+3175,1782, 583, 190, 253,1390,2230, 830,3126,3389, 934,3245,1703,1749,2979,1870, # 2752
+2545,1656,2204, 869,2346,4116,3176,1817, 496,1764,4644, 942,1504, 404,1903,1122, # 2768
+1580,3606,2945,1022, 515, 372,1735, 955,2431,3036,6146,2797,1110,2302,2798, 617, # 2784
+6147, 441, 762,1771,3447,3607,3608,1904, 840,3037,  86, 939,1385, 572,1370,2445, # 2800
+1336, 114,3703, 898, 294, 203,3315, 703,1583,2274, 429, 961,4333,1854,1951,3390, # 2816
+2373,3704,4334,1318,1381, 966,1911,2322,1006,1155, 309, 989, 458,2718,1795,1372, # 2832
+1203, 252,1689,1363,3177, 517,1936, 168,1490, 562, 193,3823,1042,4117,1835, 551, # 2848
+ 470,4645, 395, 489,3448,1871,1465,2583,2641, 417,1493, 279,1295, 511,1236,1119, # 2864
+  72,1231,1982,1812,3004, 871,1564, 984,3449,1667,2696,2096,4646,2347,2833,1673, # 2880
+3609, 695,3246,2668, 807,1183,4647, 890, 388,2333,1801,1457,2911,1765,1477,1031, # 2896
+3316,3317,1278,3391,2799,2292,2526, 163,3450,4335,2669,1404,1802,6148,2323,2407, # 2912
+1584,1728,1494,1824,1269, 298, 909,3318,1034,1632, 375, 776,1683,2061, 291, 210, # 2928
+1123, 809,1249,1002,2642,3038, 206,1011,2132, 144, 975, 882,1565, 342, 667, 754, # 2944
+1442,2143,1299,2303,2062, 447, 626,2205,1221,2739,2912,1144,1214,2206,2584, 760, # 2960
+1715, 614, 950,1281,2670,2621, 810, 577,1287,2546,4648, 242,2168, 250,2643, 691, # 2976
+ 123,2644, 647, 313,1029, 689,1357,2946,1650, 216, 771,1339,1306, 808,2063, 549, # 2992
+ 913,1371,2913,2914,6149,1466,1092,1174,1196,1311,2605,2396,1783,1796,3079, 406, # 3008
+2671,2117,3949,4649, 487,1825,2220,6150,2915, 448,2348,1073,6151,2397,1707, 130, # 3024
+ 900,1598, 329, 176,1959,2527,1620,6152,2275,4336,3319,1983,2191,3705,3610,2155, # 3040
+3706,1912,1513,1614,6153,1988, 646, 392,2304,1589,3320,3039,1826,1239,1352,1340, # 3056
+2916, 505,2567,1709,1437,2408,2547, 906,6154,2672, 384,1458,1594,1100,1329, 710, # 3072
+ 423,3531,2064,2231,2622,1989,2673,1087,1882, 333, 841,3005,1296,2882,2379, 580, # 3088
+1937,1827,1293,2585, 601, 574, 249,1772,4118,2079,1120, 645, 901,1176,1690, 795, # 3104
+2207, 478,1434, 516,1190,1530, 761,2080, 930,1264, 355, 435,1552, 644,1791, 987, # 3120
+ 220,1364,1163,1121,1538, 306,2169,1327,1222, 546,2645, 218, 241, 610,1704,3321, # 3136
+1984,1839,1966,2528, 451,6155,2586,3707,2568, 907,3178, 254,2947, 186,1845,4650, # 3152
+ 745, 432,1757, 428,1633, 888,2246,2221,2489,3611,2118,1258,1265, 956,3127,1784, # 3168
+4337,2490, 319, 510, 119, 457,3612, 274,2035,2007,4651,1409,3128, 970,2758, 590, # 3184
+2800, 661,2247,4652,2008,3950,1420,1549,3080,3322,3951,1651,1375,2111, 485,2491, # 3200
+1429,1156,6156,2548,2183,1495, 831,1840,2529,2446, 501,1657, 307,1894,3247,1341, # 3216
+ 666, 899,2156,1539,2549,1559, 886, 349,2208,3081,2305,1736,3824,2170,2759,1014, # 3232
+1913,1386, 542,1397,2948, 490, 368, 716, 362, 159, 282,2569,1129,1658,1288,1750, # 3248
+2674, 276, 649,2016, 751,1496, 658,1818,1284,1862,2209,2087,2512,3451, 622,2834, # 3264
+ 376, 117,1060,2053,1208,1721,1101,1443, 247,1250,3179,1792,3952,2760,2398,3953, # 3280
+6157,2144,3708, 446,2432,1151,2570,3452,2447,2761,2835,1210,2448,3082, 424,2222, # 3296
+1251,2449,2119,2836, 504,1581,4338, 602, 817, 857,3825,2349,2306, 357,3826,1470, # 3312
+1883,2883, 255, 958, 929,2917,3248, 302,4653,1050,1271,1751,2307,1952,1430,2697, # 3328
+2719,2359, 354,3180, 777, 158,2036,4339,1659,4340,4654,2308,2949,2248,1146,2232, # 3344
+3532,2720,1696,2623,3827,6158,3129,1550,2698,1485,1297,1428, 637, 931,2721,2145, # 3360
+ 914,2550,2587,  81,2450, 612, 827,2646,1242,4655,1118,2884, 472,1855,3181,3533, # 3376
+3534, 569,1353,2699,1244,1758,2588,4119,2009,2762,2171,3709,1312,1531,6159,1152, # 3392
+1938, 134,1830, 471,3710,2276,1112,1535,3323,3453,3535, 982,1337,2950, 488, 826, # 3408
+ 674,1058,1628,4120,2017, 522,2399, 211, 568,1367,3454, 350, 293,1872,1139,3249, # 3424
+1399,1946,3006,1300,2360,3324, 588, 736,6160,2606, 744, 669,3536,3828,6161,1358, # 3440
+ 199, 723, 848, 933, 851,1939,1505,1514,1338,1618,1831,4656,1634,3613, 443,2740, # 3456
+3829, 717,1947, 491,1914,6162,2551,1542,4121,1025,6163,1099,1223, 198,3040,2722, # 3472
+ 370, 410,1905,2589, 998,1248,3182,2380, 519,1449,4122,1710, 947, 928,1153,4341, # 3488
+2277, 344,2624,1511, 615, 105, 161,1212,1076,1960,3130,2054,1926,1175,1906,2473, # 3504
+ 414,1873,2801,6164,2309, 315,1319,3325, 318,2018,2146,2157, 963, 631, 223,4342, # 3520
+4343,2675, 479,3711,1197,2625,3712,2676,2361,6165,4344,4123,6166,2451,3183,1886, # 3536
+2184,1674,1330,1711,1635,1506, 799, 219,3250,3083,3954,1677,3713,3326,2081,3614, # 3552
+1652,2073,4657,1147,3041,1752, 643,1961, 147,1974,3955,6167,1716,2037, 918,3007, # 3568
+1994, 120,1537, 118, 609,3184,4345, 740,3455,1219, 332,1615,3830,6168,1621,2980, # 3584
+1582, 783, 212, 553,2350,3714,1349,2433,2082,4124, 889,6169,2310,1275,1410, 973, # 3600
+ 166,1320,3456,1797,1215,3185,2885,1846,2590,2763,4658, 629, 822,3008, 763, 940, # 3616
+1990,2862, 439,2409,1566,1240,1622, 926,1282,1907,2764, 654,2210,1607, 327,1130, # 3632
+3956,1678,1623,6170,2434,2192, 686, 608,3831,3715, 903,3957,3042,6171,2741,1522, # 3648
+1915,1105,1555,2552,1359, 323,3251,4346,3457, 738,1354,2553,2311,2334,1828,2003, # 3664
+3832,1753,2351,1227,6172,1887,4125,1478,6173,2410,1874,1712,1847, 520,1204,2607, # 3680
+ 264,4659, 836,2677,2102, 600,4660,3833,2278,3084,6174,4347,3615,1342, 640, 532, # 3696
+ 543,2608,1888,2400,2591,1009,4348,1497, 341,1737,3616,2723,1394, 529,3252,1321, # 3712
+ 983,4661,1515,2120, 971,2592, 924, 287,1662,3186,4349,2700,4350,1519, 908,1948, # 3728
+2452, 156, 796,1629,1486,2223,2055, 694,4126,1259,1036,3392,1213,2249,2742,1889, # 3744
+1230,3958,1015, 910, 408, 559,3617,4662, 746, 725, 935,4663,3959,3009,1289, 563, # 3760
+ 867,4664,3960,1567,2981,2038,2626, 988,2263,2381,4351, 143,2374, 704,1895,6175, # 3776
+1188,3716,2088, 673,3085,2362,4352, 484,1608,1921,2765,2918, 215, 904,3618,3537, # 3792
+ 894, 509, 976,3043,2701,3961,4353,2837,2982, 498,6176,6177,1102,3538,1332,3393, # 3808
+1487,1636,1637, 233, 245,3962, 383, 650, 995,3044, 460,1520,1206,2352, 749,3327, # 3824
+ 530, 700, 389,1438,1560,1773,3963,2264, 719,2951,2724,3834, 870,1832,1644,1000, # 3840
+ 839,2474,3717, 197,1630,3394, 365,2886,3964,1285,2133, 734, 922, 818,1106, 732, # 3856
+ 480,2083,1774,3458, 923,2279,1350, 221,3086,  85,2233,2234,3835,1585,3010,2147, # 3872
+1387,1705,2382,1619,2475, 133, 239,2802,1991,1016,2084,2383, 411,2838,1113, 651, # 3888
+1985,1160,3328, 990,1863,3087,1048,1276,2647, 265,2627,1599,3253,2056, 150, 638, # 3904
+2019, 656, 853, 326,1479, 680,1439,4354,1001,1759, 413,3459,3395,2492,1431, 459, # 3920
+4355,1125,3329,2265,1953,1450,2065,2863, 849, 351,2678,3131,3254,3255,1104,1577, # 3936
+ 227,1351,1645,2453,2193,1421,2887, 812,2121, 634,  95,2435, 201,2312,4665,1646, # 3952
+1671,2743,1601,2554,2702,2648,2280,1315,1366,2089,3132,1573,3718,3965,1729,1189, # 3968
+ 328,2679,1077,1940,1136, 558,1283, 964,1195, 621,2074,1199,1743,3460,3619,1896, # 3984
+1916,1890,3836,2952,1154,2112,1064, 862, 378,3011,2066,2113,2803,1568,2839,6178, # 4000
+3088,2919,1941,1660,2004,1992,2194, 142, 707,1590,1708,1624,1922,1023,1836,1233, # 4016
+1004,2313, 789, 741,3620,6179,1609,2411,1200,4127,3719,3720,4666,2057,3721, 593, # 4032
+2840, 367,2920,1878,6180,3461,1521, 628,1168, 692,2211,2649, 300, 720,2067,2571, # 4048
+2953,3396, 959,2504,3966,3539,3462,1977, 701,6181, 954,1043, 800, 681, 183,3722, # 4064
+1803,1730,3540,4128,2103, 815,2314, 174, 467, 230,2454,1093,2134, 755,3541,3397, # 4080
+1141,1162,6182,1738,2039, 270,3256,2513,1005,1647,2185,3837, 858,1679,1897,1719, # 4096
+2954,2324,1806, 402, 670, 167,4129,1498,2158,2104, 750,6183, 915, 189,1680,1551, # 4112
+ 455,4356,1501,2455, 405,1095,2955, 338,1586,1266,1819, 570, 641,1324, 237,1556, # 4128
+2650,1388,3723,6184,1368,2384,1343,1978,3089,2436, 879,3724, 792,1191, 758,3012, # 4144
+1411,2135,1322,4357, 240,4667,1848,3725,1574,6185, 420,3045,1546,1391, 714,4358, # 4160
+1967, 941,1864, 863, 664, 426, 560,1731,2680,1785,2864,1949,2363, 403,3330,1415, # 4176
+1279,2136,1697,2335, 204, 721,2097,3838,  90,6186,2085,2505, 191,3967, 124,2148, # 4192
+1376,1798,1178,1107,1898,1405, 860,4359,1243,1272,2375,2983,1558,2456,1638, 113, # 4208
+3621, 578,1923,2609, 880, 386,4130, 784,2186,2266,1422,2956,2172,1722, 497, 263, # 4224
+2514,1267,2412,2610, 177,2703,3542, 774,1927,1344, 616,1432,1595,1018, 172,4360, # 4240
+2325, 911,4361, 438,1468,3622, 794,3968,2024,2173,1681,1829,2957, 945, 895,3090, # 4256
+ 575,2212,2476, 475,2401,2681, 785,2744,1745,2293,2555,1975,3133,2865, 394,4668, # 4272
+3839, 635,4131, 639, 202,1507,2195,2766,1345,1435,2572,3726,1908,1184,1181,2457, # 4288
+3727,3134,4362, 843,2611, 437, 916,4669, 234, 769,1884,3046,3047,3623, 833,6187, # 4304
+1639,2250,2402,1355,1185,2010,2047, 999, 525,1732,1290,1488,2612, 948,1578,3728, # 4320
+2413,2477,1216,2725,2159, 334,3840,1328,3624,2921,1525,4132, 564,1056, 891,4363, # 4336
+1444,1698,2385,2251,3729,1365,2281,2235,1717,6188, 864,3841,2515, 444, 527,2767, # 4352
+2922,3625, 544, 461,6189, 566, 209,2437,3398,2098,1065,2068,3331,3626,3257,2137, # 4368  #last 512
+#Everything below is of no interest for detection purpose
+2138,2122,3730,2888,1995,1820,1044,6190,6191,6192,6193,6194,6195,6196,6197,6198, # 4384
+6199,6200,6201,6202,6203,6204,6205,4670,6206,6207,6208,6209,6210,6211,6212,6213, # 4400
+6214,6215,6216,6217,6218,6219,6220,6221,6222,6223,6224,6225,6226,6227,6228,6229, # 4416
+6230,6231,6232,6233,6234,6235,6236,6237,3187,6238,6239,3969,6240,6241,6242,6243, # 4432
+6244,4671,6245,6246,4672,6247,6248,4133,6249,6250,4364,6251,2923,2556,2613,4673, # 4448
+4365,3970,6252,6253,6254,6255,4674,6256,6257,6258,2768,2353,4366,4675,4676,3188, # 4464
+4367,3463,6259,4134,4677,4678,6260,2267,6261,3842,3332,4368,3543,6262,6263,6264, # 4480
+3013,1954,1928,4135,4679,6265,6266,2478,3091,6267,4680,4369,6268,6269,1699,6270, # 4496
+3544,4136,4681,6271,4137,6272,4370,2804,6273,6274,2593,3971,3972,4682,6275,2236, # 4512
+4683,6276,6277,4684,6278,6279,4138,3973,4685,6280,6281,3258,6282,6283,6284,6285, # 4528
+3974,4686,2841,3975,6286,6287,3545,6288,6289,4139,4687,4140,6290,4141,6291,4142, # 4544
+6292,6293,3333,6294,6295,6296,4371,6297,3399,6298,6299,4372,3976,6300,6301,6302, # 4560
+4373,6303,6304,3843,3731,6305,4688,4374,6306,6307,3259,2294,6308,3732,2530,4143, # 4576
+6309,4689,6310,6311,6312,3048,6313,6314,4690,3733,2237,6315,6316,2282,3334,6317, # 4592
+6318,3844,6319,6320,4691,6321,3400,4692,6322,4693,6323,3049,6324,4375,6325,3977, # 4608
+6326,6327,6328,3546,6329,4694,3335,6330,4695,4696,6331,6332,6333,6334,4376,3978, # 4624
+6335,4697,3979,4144,6336,3980,4698,6337,6338,6339,6340,6341,4699,4700,4701,6342, # 4640
+6343,4702,6344,6345,4703,6346,6347,4704,6348,4705,4706,3135,6349,4707,6350,4708, # 4656
+6351,4377,6352,4709,3734,4145,6353,2506,4710,3189,6354,3050,4711,3981,6355,3547, # 4672
+3014,4146,4378,3735,2651,3845,3260,3136,2224,1986,6356,3401,6357,4712,2594,3627, # 4688
+3137,2573,3736,3982,4713,3628,4714,4715,2682,3629,4716,6358,3630,4379,3631,6359, # 4704
+6360,6361,3983,6362,6363,6364,6365,4147,3846,4717,6366,6367,3737,2842,6368,4718, # 4720
+2628,6369,3261,6370,2386,6371,6372,3738,3984,4719,3464,4720,3402,6373,2924,3336, # 4736
+4148,2866,6374,2805,3262,4380,2704,2069,2531,3138,2806,2984,6375,2769,6376,4721, # 4752
+4722,3403,6377,6378,3548,6379,6380,2705,3092,1979,4149,2629,3337,2889,6381,3338, # 4768
+4150,2557,3339,4381,6382,3190,3263,3739,6383,4151,4723,4152,2558,2574,3404,3191, # 4784
+6384,6385,4153,6386,4724,4382,6387,6388,4383,6389,6390,4154,6391,4725,3985,6392, # 4800
+3847,4155,6393,6394,6395,6396,6397,3465,6398,4384,6399,6400,6401,6402,6403,6404, # 4816
+4156,6405,6406,6407,6408,2123,6409,6410,2326,3192,4726,6411,6412,6413,6414,4385, # 4832
+4157,6415,6416,4158,6417,3093,3848,6418,3986,6419,6420,3849,6421,6422,6423,4159, # 4848
+6424,6425,4160,6426,3740,6427,6428,6429,6430,3987,6431,4727,6432,2238,6433,6434, # 4864
+4386,3988,6435,6436,3632,6437,6438,2843,6439,6440,6441,6442,3633,6443,2958,6444, # 4880
+6445,3466,6446,2364,4387,3850,6447,4388,2959,3340,6448,3851,6449,4728,6450,6451, # 4896
+3264,4729,6452,3193,6453,4389,4390,2706,3341,4730,6454,3139,6455,3194,6456,3051, # 4912
+2124,3852,1602,4391,4161,3853,1158,3854,4162,3989,4392,3990,4731,4732,4393,2040, # 4928
+4163,4394,3265,6457,2807,3467,3855,6458,6459,6460,3991,3468,4733,4734,6461,3140, # 4944
+2960,6462,4735,6463,6464,6465,6466,4736,4737,4738,4739,6467,6468,4164,2403,3856, # 4960
+6469,6470,2770,2844,6471,4740,6472,6473,6474,6475,6476,6477,6478,3195,6479,4741, # 4976
+4395,6480,2867,6481,4742,2808,6482,2493,4165,6483,6484,6485,6486,2295,4743,6487, # 4992
+6488,6489,3634,6490,6491,6492,6493,6494,6495,6496,2985,4744,6497,6498,4745,6499, # 5008
+6500,2925,3141,4166,6501,6502,4746,6503,6504,4747,6505,6506,6507,2890,6508,6509, # 5024
+6510,6511,6512,6513,6514,6515,6516,6517,6518,6519,3469,4167,6520,6521,6522,4748, # 5040
+4396,3741,4397,4749,4398,3342,2125,4750,6523,4751,4752,4753,3052,6524,2961,4168, # 5056
+6525,4754,6526,4755,4399,2926,4169,6527,3857,6528,4400,4170,6529,4171,6530,6531, # 5072
+2595,6532,6533,6534,6535,3635,6536,6537,6538,6539,6540,6541,6542,4756,6543,6544, # 5088
+6545,6546,6547,6548,4401,6549,6550,6551,6552,4402,3405,4757,4403,6553,6554,6555, # 5104
+4172,3742,6556,6557,6558,3992,3636,6559,6560,3053,2726,6561,3549,4173,3054,4404, # 5120
+6562,6563,3993,4405,3266,3550,2809,4406,6564,6565,6566,4758,4759,6567,3743,6568, # 5136
+4760,3744,4761,3470,6569,6570,6571,4407,6572,3745,4174,6573,4175,2810,4176,3196, # 5152
+4762,6574,4177,6575,6576,2494,2891,3551,6577,6578,3471,6579,4408,6580,3015,3197, # 5168
+6581,3343,2532,3994,3858,6582,3094,3406,4409,6583,2892,4178,4763,4410,3016,4411, # 5184
+6584,3995,3142,3017,2683,6585,4179,6586,6587,4764,4412,6588,6589,4413,6590,2986, # 5200
+6591,2962,3552,6592,2963,3472,6593,6594,4180,4765,6595,6596,2225,3267,4414,6597, # 5216
+3407,3637,4766,6598,6599,3198,6600,4415,6601,3859,3199,6602,3473,4767,2811,4416, # 5232
+1856,3268,3200,2575,3996,3997,3201,4417,6603,3095,2927,6604,3143,6605,2268,6606, # 5248
+3998,3860,3096,2771,6607,6608,3638,2495,4768,6609,3861,6610,3269,2745,4769,4181, # 5264
+3553,6611,2845,3270,6612,6613,6614,3862,6615,6616,4770,4771,6617,3474,3999,4418, # 5280
+4419,6618,3639,3344,6619,4772,4182,6620,2126,6621,6622,6623,4420,4773,6624,3018, # 5296
+6625,4774,3554,6626,4183,2025,3746,6627,4184,2707,6628,4421,4422,3097,1775,4185, # 5312
+3555,6629,6630,2868,6631,6632,4423,6633,6634,4424,2414,2533,2928,6635,4186,2387, # 5328
+6636,4775,6637,4187,6638,1891,4425,3202,3203,6639,6640,4776,6641,3345,6642,6643, # 5344
+3640,6644,3475,3346,3641,4000,6645,3144,6646,3098,2812,4188,3642,3204,6647,3863, # 5360
+3476,6648,3864,6649,4426,4001,6650,6651,6652,2576,6653,4189,4777,6654,6655,6656, # 5376
+2846,6657,3477,3205,4002,6658,4003,6659,3347,2252,6660,6661,6662,4778,6663,6664, # 5392
+6665,6666,6667,6668,6669,4779,4780,2048,6670,3478,3099,6671,3556,3747,4004,6672, # 5408
+6673,6674,3145,4005,3748,6675,6676,6677,6678,6679,3408,6680,6681,6682,6683,3206, # 5424
+3207,6684,6685,4781,4427,6686,4782,4783,4784,6687,6688,6689,4190,6690,6691,3479, # 5440
+6692,2746,6693,4428,6694,6695,6696,6697,6698,6699,4785,6700,6701,3208,2727,6702, # 5456
+3146,6703,6704,3409,2196,6705,4429,6706,6707,6708,2534,1996,6709,6710,6711,2747, # 5472
+6712,6713,6714,4786,3643,6715,4430,4431,6716,3557,6717,4432,4433,6718,6719,6720, # 5488
+6721,3749,6722,4006,4787,6723,6724,3644,4788,4434,6725,6726,4789,2772,6727,6728, # 5504
+6729,6730,6731,2708,3865,2813,4435,6732,6733,4790,4791,3480,6734,6735,6736,6737, # 5520
+4436,3348,6738,3410,4007,6739,6740,4008,6741,6742,4792,3411,4191,6743,6744,6745, # 5536
+6746,6747,3866,6748,3750,6749,6750,6751,6752,6753,6754,6755,3867,6756,4009,6757, # 5552
+4793,4794,6758,2814,2987,6759,6760,6761,4437,6762,6763,6764,6765,3645,6766,6767, # 5568
+3481,4192,6768,3751,6769,6770,2174,6771,3868,3752,6772,6773,6774,4193,4795,4438, # 5584
+3558,4796,4439,6775,4797,6776,6777,4798,6778,4799,3559,4800,6779,6780,6781,3482, # 5600
+6782,2893,6783,6784,4194,4801,4010,6785,6786,4440,6787,4011,6788,6789,6790,6791, # 5616
+6792,6793,4802,6794,6795,6796,4012,6797,6798,6799,6800,3349,4803,3483,6801,4804, # 5632
+4195,6802,4013,6803,6804,4196,6805,4014,4015,6806,2847,3271,2848,6807,3484,6808, # 5648
+6809,6810,4441,6811,4442,4197,4443,3272,4805,6812,3412,4016,1579,6813,6814,4017, # 5664
+6815,3869,6816,2964,6817,4806,6818,6819,4018,3646,6820,6821,4807,4019,4020,6822, # 5680
+6823,3560,6824,6825,4021,4444,6826,4198,6827,6828,4445,6829,6830,4199,4808,6831, # 5696
+6832,6833,3870,3019,2458,6834,3753,3413,3350,6835,4809,3871,4810,3561,4446,6836, # 5712
+6837,4447,4811,4812,6838,2459,4448,6839,4449,6840,6841,4022,3872,6842,4813,4814, # 5728
+6843,6844,4815,4200,4201,4202,6845,4023,6846,6847,4450,3562,3873,6848,6849,4816, # 5744
+4817,6850,4451,4818,2139,6851,3563,6852,6853,3351,6854,6855,3352,4024,2709,3414, # 5760
+4203,4452,6856,4204,6857,6858,3874,3875,6859,6860,4819,6861,6862,6863,6864,4453, # 5776
+3647,6865,6866,4820,6867,6868,6869,6870,4454,6871,2869,6872,6873,4821,6874,3754, # 5792
+6875,4822,4205,6876,6877,6878,3648,4206,4455,6879,4823,6880,4824,3876,6881,3055, # 5808
+4207,6882,3415,6883,6884,6885,4208,4209,6886,4210,3353,6887,3354,3564,3209,3485, # 5824
+2652,6888,2728,6889,3210,3755,6890,4025,4456,6891,4825,6892,6893,6894,6895,4211, # 5840
+6896,6897,6898,4826,6899,6900,4212,6901,4827,6902,2773,3565,6903,4828,6904,6905, # 5856
+6906,6907,3649,3650,6908,2849,3566,6909,3567,3100,6910,6911,6912,6913,6914,6915, # 5872
+4026,6916,3355,4829,3056,4457,3756,6917,3651,6918,4213,3652,2870,6919,4458,6920, # 5888
+2438,6921,6922,3757,2774,4830,6923,3356,4831,4832,6924,4833,4459,3653,2507,6925, # 5904
+4834,2535,6926,6927,3273,4027,3147,6928,3568,6929,6930,6931,4460,6932,3877,4461, # 5920
+2729,3654,6933,6934,6935,6936,2175,4835,2630,4214,4028,4462,4836,4215,6937,3148, # 5936
+4216,4463,4837,4838,4217,6938,6939,2850,4839,6940,4464,6941,6942,6943,4840,6944, # 5952
+4218,3274,4465,6945,6946,2710,6947,4841,4466,6948,6949,2894,6950,6951,4842,6952, # 5968
+4219,3057,2871,6953,6954,6955,6956,4467,6957,2711,6958,6959,6960,3275,3101,4843, # 5984
+6961,3357,3569,6962,4844,6963,6964,4468,4845,3570,6965,3102,4846,3758,6966,4847, # 6000
+3878,4848,4849,4029,6967,2929,3879,4850,4851,6968,6969,1733,6970,4220,6971,6972, # 6016
+6973,6974,6975,6976,4852,6977,6978,6979,6980,6981,6982,3759,6983,6984,6985,3486, # 6032
+3487,6986,3488,3416,6987,6988,6989,6990,6991,6992,6993,6994,6995,6996,6997,4853, # 6048
+6998,6999,4030,7000,7001,3211,7002,7003,4221,7004,7005,3571,4031,7006,3572,7007, # 6064
+2614,4854,2577,7008,7009,2965,3655,3656,4855,2775,3489,3880,4222,4856,3881,4032, # 6080
+3882,3657,2730,3490,4857,7010,3149,7011,4469,4858,2496,3491,4859,2283,7012,7013, # 6096
+7014,2365,4860,4470,7015,7016,3760,7017,7018,4223,1917,7019,7020,7021,4471,7022, # 6112
+2776,4472,7023,7024,7025,7026,4033,7027,3573,4224,4861,4034,4862,7028,7029,1929, # 6128
+3883,4035,7030,4473,3058,7031,2536,3761,3884,7032,4036,7033,2966,2895,1968,4474, # 6144
+3276,4225,3417,3492,4226,2105,7034,7035,1754,2596,3762,4227,4863,4475,3763,4864, # 6160
+3764,2615,2777,3103,3765,3658,3418,4865,2296,3766,2815,7036,7037,7038,3574,2872, # 6176
+3277,4476,7039,4037,4477,7040,7041,4038,7042,7043,7044,7045,7046,7047,2537,7048, # 6192
+7049,7050,7051,7052,7053,7054,4478,7055,7056,3767,3659,4228,3575,7057,7058,4229, # 6208
+7059,7060,7061,3660,7062,3212,7063,3885,4039,2460,7064,7065,7066,7067,7068,7069, # 6224
+7070,7071,7072,7073,7074,4866,3768,4867,7075,7076,7077,7078,4868,3358,3278,2653, # 6240
+7079,7080,4479,3886,7081,7082,4869,7083,7084,7085,7086,7087,7088,2538,7089,7090, # 6256
+7091,4040,3150,3769,4870,4041,2896,3359,4230,2930,7092,3279,7093,2967,4480,3213, # 6272
+4481,3661,7094,7095,7096,7097,7098,7099,7100,7101,7102,2461,3770,7103,7104,4231, # 6288
+3151,7105,7106,7107,4042,3662,7108,7109,4871,3663,4872,4043,3059,7110,7111,7112, # 6304
+3493,2988,7113,4873,7114,7115,7116,3771,4874,7117,7118,4232,4875,7119,3576,2336, # 6320
+4876,7120,4233,3419,4044,4877,4878,4482,4483,4879,4484,4234,7121,3772,4880,1045, # 6336
+3280,3664,4881,4882,7122,7123,7124,7125,4883,7126,2778,7127,4485,4486,7128,4884, # 6352
+3214,3887,7129,7130,3215,7131,4885,4045,7132,7133,4046,7134,7135,7136,7137,7138, # 6368
+7139,7140,7141,7142,7143,4235,7144,4886,7145,7146,7147,4887,7148,7149,7150,4487, # 6384
+4047,4488,7151,7152,4888,4048,2989,3888,7153,3665,7154,4049,7155,7156,7157,7158, # 6400
+7159,7160,2931,4889,4890,4489,7161,2631,3889,4236,2779,7162,7163,4891,7164,3060, # 6416
+7165,1672,4892,7166,4893,4237,3281,4894,7167,7168,3666,7169,3494,7170,7171,4050, # 6432
+7172,7173,3104,3360,3420,4490,4051,2684,4052,7174,4053,7175,7176,7177,2253,4054, # 6448
+7178,7179,4895,7180,3152,3890,3153,4491,3216,7181,7182,7183,2968,4238,4492,4055, # 6464
+7184,2990,7185,2479,7186,7187,4493,7188,7189,7190,7191,7192,4896,7193,4897,2969, # 6480
+4494,4898,7194,3495,7195,7196,4899,4495,7197,3105,2731,7198,4900,7199,7200,7201, # 6496
+4056,7202,3361,7203,7204,4496,4901,4902,7205,4497,7206,7207,2315,4903,7208,4904, # 6512
+7209,4905,2851,7210,7211,3577,7212,3578,4906,7213,4057,3667,4907,7214,4058,2354, # 6528
+3891,2376,3217,3773,7215,7216,7217,7218,7219,4498,7220,4908,3282,2685,7221,3496, # 6544
+4909,2632,3154,4910,7222,2337,7223,4911,7224,7225,7226,4912,4913,3283,4239,4499, # 6560
+7227,2816,7228,7229,7230,7231,7232,7233,7234,4914,4500,4501,7235,7236,7237,2686, # 6576
+7238,4915,7239,2897,4502,7240,4503,7241,2516,7242,4504,3362,3218,7243,7244,7245, # 6592
+4916,7246,7247,4505,3363,7248,7249,7250,7251,3774,4506,7252,7253,4917,7254,7255, # 6608
+3284,2991,4918,4919,3219,3892,4920,3106,3497,4921,7256,7257,7258,4922,7259,4923, # 6624
+3364,4507,4508,4059,7260,4240,3498,7261,7262,4924,7263,2992,3893,4060,3220,7264, # 6640
+7265,7266,7267,7268,7269,4509,3775,7270,2817,7271,4061,4925,4510,3776,7272,4241, # 6656
+4511,3285,7273,7274,3499,7275,7276,7277,4062,4512,4926,7278,3107,3894,7279,7280, # 6672
+4927,7281,4513,7282,7283,3668,7284,7285,4242,4514,4243,7286,2058,4515,4928,4929, # 6688
+4516,7287,3286,4244,7288,4517,7289,7290,7291,3669,7292,7293,4930,4931,4932,2355, # 6704
+4933,7294,2633,4518,7295,4245,7296,7297,4519,7298,7299,4520,4521,4934,7300,4246, # 6720
+4522,7301,7302,7303,3579,7304,4247,4935,7305,4936,7306,7307,7308,7309,3777,7310, # 6736
+4523,7311,7312,7313,4248,3580,7314,4524,3778,4249,7315,3581,7316,3287,7317,3221, # 6752
+7318,4937,7319,7320,7321,7322,7323,7324,4938,4939,7325,4525,7326,7327,7328,4063, # 6768
+7329,7330,4940,7331,7332,4941,7333,4526,7334,3500,2780,1741,4942,2026,1742,7335, # 6784
+7336,3582,4527,2388,7337,7338,7339,4528,7340,4250,4943,7341,7342,7343,4944,7344, # 6800
+7345,7346,3020,7347,4945,7348,7349,7350,7351,3895,7352,3896,4064,3897,7353,7354, # 6816
+7355,4251,7356,7357,3898,7358,3779,7359,3780,3288,7360,7361,4529,7362,4946,4530, # 6832
+2027,7363,3899,4531,4947,3222,3583,7364,4948,7365,7366,7367,7368,4949,3501,4950, # 6848
+3781,4951,4532,7369,2517,4952,4252,4953,3155,7370,4954,4955,4253,2518,4533,7371, # 6864
+7372,2712,4254,7373,7374,7375,3670,4956,3671,7376,2389,3502,4065,7377,2338,7378, # 6880
+7379,7380,7381,3061,7382,4957,7383,7384,7385,7386,4958,4534,7387,7388,2993,7389, # 6896
+3062,7390,4959,7391,7392,7393,4960,3108,4961,7394,4535,7395,4962,3421,4536,7396, # 6912
+4963,7397,4964,1857,7398,4965,7399,7400,2176,3584,4966,7401,7402,3422,4537,3900, # 6928
+3585,7403,3782,7404,2852,7405,7406,7407,4538,3783,2654,3423,4967,4539,7408,3784, # 6944
+3586,2853,4540,4541,7409,3901,7410,3902,7411,7412,3785,3109,2327,3903,7413,7414, # 6960
+2970,4066,2932,7415,7416,7417,3904,3672,3424,7418,4542,4543,4544,7419,4968,7420, # 6976
+7421,4255,7422,7423,7424,7425,7426,4067,7427,3673,3365,4545,7428,3110,2559,3674, # 6992
+7429,7430,3156,7431,7432,3503,7433,3425,4546,7434,3063,2873,7435,3223,4969,4547, # 7008
+4548,2898,4256,4068,7436,4069,3587,3786,2933,3787,4257,4970,4971,3788,7437,4972, # 7024
+3064,7438,4549,7439,7440,7441,7442,7443,4973,3905,7444,2874,7445,7446,7447,7448, # 7040
+3021,7449,4550,3906,3588,4974,7450,7451,3789,3675,7452,2578,7453,4070,7454,7455, # 7056
+7456,4258,3676,7457,4975,7458,4976,4259,3790,3504,2634,4977,3677,4551,4260,7459, # 7072
+7460,7461,7462,3907,4261,4978,7463,7464,7465,7466,4979,4980,7467,7468,2213,4262, # 7088
+7469,7470,7471,3678,4981,7472,2439,7473,4263,3224,3289,7474,3908,2415,4982,7475, # 7104
+4264,7476,4983,2655,7477,7478,2732,4552,2854,2875,7479,7480,4265,7481,4553,4984, # 7120
+7482,7483,4266,7484,3679,3366,3680,2818,2781,2782,3367,3589,4554,3065,7485,4071, # 7136
+2899,7486,7487,3157,2462,4072,4555,4073,4985,4986,3111,4267,2687,3368,4556,4074, # 7152
+3791,4268,7488,3909,2783,7489,2656,1962,3158,4557,4987,1963,3159,3160,7490,3112, # 7168
+4988,4989,3022,4990,4991,3792,2855,7491,7492,2971,4558,7493,7494,4992,7495,7496, # 7184
+7497,7498,4993,7499,3426,4559,4994,7500,3681,4560,4269,4270,3910,7501,4075,4995, # 7200
+4271,7502,7503,4076,7504,4996,7505,3225,4997,4272,4077,2819,3023,7506,7507,2733, # 7216
+4561,7508,4562,7509,3369,3793,7510,3590,2508,7511,7512,4273,3113,2994,2616,7513, # 7232
+7514,7515,7516,7517,7518,2820,3911,4078,2748,7519,7520,4563,4998,7521,7522,7523, # 7248
+7524,4999,4274,7525,4564,3682,2239,4079,4565,7526,7527,7528,7529,5000,7530,7531, # 7264
+5001,4275,3794,7532,7533,7534,3066,5002,4566,3161,7535,7536,4080,7537,3162,7538, # 7280
+7539,4567,7540,7541,7542,7543,7544,7545,5003,7546,4568,7547,7548,7549,7550,7551, # 7296
+7552,7553,7554,7555,7556,5004,7557,7558,7559,5005,7560,3795,7561,4569,7562,7563, # 7312
+7564,2821,3796,4276,4277,4081,7565,2876,7566,5006,7567,7568,2900,7569,3797,3912, # 7328
+7570,7571,7572,4278,7573,7574,7575,5007,7576,7577,5008,7578,7579,4279,2934,7580, # 7344
+7581,5009,7582,4570,7583,4280,7584,7585,7586,4571,4572,3913,7587,4573,3505,7588, # 7360
+5010,7589,7590,7591,7592,3798,4574,7593,7594,5011,7595,4281,7596,7597,7598,4282, # 7376
+5012,7599,7600,5013,3163,7601,5014,7602,3914,7603,7604,2734,4575,4576,4577,7605, # 7392
+7606,7607,7608,7609,3506,5015,4578,7610,4082,7611,2822,2901,2579,3683,3024,4579, # 7408
+3507,7612,4580,7613,3226,3799,5016,7614,7615,7616,7617,7618,7619,7620,2995,3290, # 7424
+7621,4083,7622,5017,7623,7624,7625,7626,7627,4581,3915,7628,3291,7629,5018,7630, # 7440
+7631,7632,7633,4084,7634,7635,3427,3800,7636,7637,4582,7638,5019,4583,5020,7639, # 7456
+3916,7640,3801,5021,4584,4283,7641,7642,3428,3591,2269,7643,2617,7644,4585,3592, # 7472
+7645,4586,2902,7646,7647,3227,5022,7648,4587,7649,4284,7650,7651,7652,4588,2284, # 7488
+7653,5023,7654,7655,7656,4589,5024,3802,7657,7658,5025,3508,4590,7659,7660,7661, # 7504
+1969,5026,7662,7663,3684,1821,2688,7664,2028,2509,4285,7665,2823,1841,7666,2689, # 7520
+3114,7667,3917,4085,2160,5027,5028,2972,7668,5029,7669,7670,7671,3593,4086,7672, # 7536
+4591,4087,5030,3803,7673,7674,7675,7676,7677,7678,7679,4286,2366,4592,4593,3067, # 7552
+2328,7680,7681,4594,3594,3918,2029,4287,7682,5031,3919,3370,4288,4595,2856,7683, # 7568
+3509,7684,7685,5032,5033,7686,7687,3804,2784,7688,7689,7690,7691,3371,7692,7693, # 7584
+2877,5034,7694,7695,3920,4289,4088,7696,7697,7698,5035,7699,5036,4290,5037,5038, # 7600
+5039,7700,7701,7702,5040,5041,3228,7703,1760,7704,5042,3229,4596,2106,4089,7705, # 7616
+4597,2824,5043,2107,3372,7706,4291,4090,5044,7707,4091,7708,5045,3025,3805,4598, # 7632
+4292,4293,4294,3373,7709,4599,7710,5046,7711,7712,5047,5048,3806,7713,7714,7715, # 7648
+5049,7716,7717,7718,7719,4600,5050,7720,7721,7722,5051,7723,4295,3429,7724,7725, # 7664
+7726,7727,3921,7728,3292,5052,4092,7729,7730,7731,7732,7733,7734,7735,5053,5054, # 7680
+7736,7737,7738,7739,3922,3685,7740,7741,7742,7743,2635,5055,7744,5056,4601,7745, # 7696
+7746,2560,7747,7748,7749,7750,3923,7751,7752,7753,7754,7755,4296,2903,7756,7757, # 7712
+7758,7759,7760,3924,7761,5057,4297,7762,7763,5058,4298,7764,4093,7765,7766,5059, # 7728
+3925,7767,7768,7769,7770,7771,7772,7773,7774,7775,7776,3595,7777,4299,5060,4094, # 7744
+7778,3293,5061,7779,7780,4300,7781,7782,4602,7783,3596,7784,7785,3430,2367,7786, # 7760
+3164,5062,5063,4301,7787,7788,4095,5064,5065,7789,3374,3115,7790,7791,7792,7793, # 7776
+7794,7795,7796,3597,4603,7797,7798,3686,3116,3807,5066,7799,7800,5067,7801,7802, # 7792
+4604,4302,5068,4303,4096,7803,7804,3294,7805,7806,5069,4605,2690,7807,3026,7808, # 7808
+7809,7810,7811,7812,7813,7814,7815,7816,7817,7818,7819,7820,7821,7822,7823,7824, # 7824
+7825,7826,7827,7828,7829,7830,7831,7832,7833,7834,7835,7836,7837,7838,7839,7840, # 7840
+7841,7842,7843,7844,7845,7846,7847,7848,7849,7850,7851,7852,7853,7854,7855,7856, # 7856
+7857,7858,7859,7860,7861,7862,7863,7864,7865,7866,7867,7868,7869,7870,7871,7872, # 7872
+7873,7874,7875,7876,7877,7878,7879,7880,7881,7882,7883,7884,7885,7886,7887,7888, # 7888
+7889,7890,7891,7892,7893,7894,7895,7896,7897,7898,7899,7900,7901,7902,7903,7904, # 7904
+7905,7906,7907,7908,7909,7910,7911,7912,7913,7914,7915,7916,7917,7918,7919,7920, # 7920
+7921,7922,7923,7924,3926,7925,7926,7927,7928,7929,7930,7931,7932,7933,7934,7935, # 7936
+7936,7937,7938,7939,7940,7941,7942,7943,7944,7945,7946,7947,7948,7949,7950,7951, # 7952
+7952,7953,7954,7955,7956,7957,7958,7959,7960,7961,7962,7963,7964,7965,7966,7967, # 7968
+7968,7969,7970,7971,7972,7973,7974,7975,7976,7977,7978,7979,7980,7981,7982,7983, # 7984
+7984,7985,7986,7987,7988,7989,7990,7991,7992,7993,7994,7995,7996,7997,7998,7999, # 8000
+8000,8001,8002,8003,8004,8005,8006,8007,8008,8009,8010,8011,8012,8013,8014,8015, # 8016
+8016,8017,8018,8019,8020,8021,8022,8023,8024,8025,8026,8027,8028,8029,8030,8031, # 8032
+8032,8033,8034,8035,8036,8037,8038,8039,8040,8041,8042,8043,8044,8045,8046,8047, # 8048
+8048,8049,8050,8051,8052,8053,8054,8055,8056,8057,8058,8059,8060,8061,8062,8063, # 8064
+8064,8065,8066,8067,8068,8069,8070,8071,8072,8073,8074,8075,8076,8077,8078,8079, # 8080
+8080,8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095, # 8096
+8096,8097,8098,8099,8100,8101,8102,8103,8104,8105,8106,8107,8108,8109,8110,8111, # 8112
+8112,8113,8114,8115,8116,8117,8118,8119,8120,8121,8122,8123,8124,8125,8126,8127, # 8128
+8128,8129,8130,8131,8132,8133,8134,8135,8136,8137,8138,8139,8140,8141,8142,8143, # 8144
+8144,8145,8146,8147,8148,8149,8150,8151,8152,8153,8154,8155,8156,8157,8158,8159, # 8160
+8160,8161,8162,8163,8164,8165,8166,8167,8168,8169,8170,8171,8172,8173,8174,8175, # 8176
+8176,8177,8178,8179,8180,8181,8182,8183,8184,8185,8186,8187,8188,8189,8190,8191, # 8192
+8192,8193,8194,8195,8196,8197,8198,8199,8200,8201,8202,8203,8204,8205,8206,8207, # 8208
+8208,8209,8210,8211,8212,8213,8214,8215,8216,8217,8218,8219,8220,8221,8222,8223, # 8224
+8224,8225,8226,8227,8228,8229,8230,8231,8232,8233,8234,8235,8236,8237,8238,8239, # 8240
+8240,8241,8242,8243,8244,8245,8246,8247,8248,8249,8250,8251,8252,8253,8254,8255, # 8256
+8256,8257,8258,8259,8260,8261,8262,8263,8264,8265,8266,8267,8268,8269,8270,8271) # 8272
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py
new file mode 100644
index 0000000..59aeb6a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py
@@ -0,0 +1,227 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .compat import wrap_ord
+
+NUM_OF_CATEGORY = 6
+DONT_KNOW = -1
+ENOUGH_REL_THRESHOLD = 100
+MAX_REL_THRESHOLD = 1000
+MINIMUM_DATA_THRESHOLD = 4
+
+# This is hiragana 2-char sequence table, the number in each cell represents its frequency category
+jp2CharContext = (
+(0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1),
+(2,4,0,4,0,3,0,4,0,3,4,4,4,2,4,3,3,4,3,2,3,3,4,2,3,3,3,2,4,1,4,3,3,1,5,4,3,4,3,4,3,5,3,0,3,5,4,2,0,3,1,0,3,3,0,3,3,0,1,1,0,4,3,0,3,3,0,4,0,2,0,3,5,5,5,5,4,0,4,1,0,3,4),
+(0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2),
+(0,4,0,5,0,5,0,4,0,4,5,4,4,3,5,3,5,1,5,3,4,3,4,4,3,4,3,3,4,3,5,4,4,3,5,5,3,5,5,5,3,5,5,3,4,5,5,3,1,3,2,0,3,4,0,4,2,0,4,2,1,5,3,2,3,5,0,4,0,2,0,5,4,4,5,4,5,0,4,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,4,0,3,0,3,0,4,5,4,3,3,3,3,4,3,5,4,4,3,5,4,4,3,4,3,4,4,4,4,5,3,4,4,3,4,5,5,4,5,5,1,4,5,4,3,0,3,3,1,3,3,0,4,4,0,3,3,1,5,3,3,3,5,0,4,0,3,0,4,4,3,4,3,3,0,4,1,1,3,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,4,0,3,0,3,0,4,0,3,4,4,3,2,2,1,2,1,3,1,3,3,3,3,3,4,3,1,3,3,5,3,3,0,4,3,0,5,4,3,3,5,4,4,3,4,4,5,0,1,2,0,1,2,0,2,2,0,1,0,0,5,2,2,1,4,0,3,0,1,0,4,4,3,5,4,3,0,2,1,0,4,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,5,0,4,0,2,1,4,4,2,4,1,4,2,4,2,4,3,3,3,4,3,3,3,3,1,4,2,3,3,3,1,4,4,1,1,1,4,3,3,2,0,2,4,3,2,0,3,3,0,3,1,1,0,0,0,3,3,0,4,2,2,3,4,0,4,0,3,0,4,4,5,3,4,4,0,3,0,0,1,4),
+(1,4,0,4,0,4,0,4,0,3,5,4,4,3,4,3,5,4,3,3,4,3,5,4,4,4,4,3,4,2,4,3,3,1,5,4,3,2,4,5,4,5,5,4,4,5,4,4,0,3,2,2,3,3,0,4,3,1,3,2,1,4,3,3,4,5,0,3,0,2,0,4,5,5,4,5,4,0,4,0,0,5,4),
+(0,5,0,5,0,4,0,3,0,4,4,3,4,3,3,3,4,0,4,4,4,3,4,3,4,3,3,1,4,2,4,3,4,0,5,4,1,4,5,4,4,5,3,2,4,3,4,3,2,4,1,3,3,3,2,3,2,0,4,3,3,4,3,3,3,4,0,4,0,3,0,4,5,4,4,4,3,0,4,1,0,1,3),
+(0,3,1,4,0,3,0,2,0,3,4,4,3,1,4,2,3,3,4,3,4,3,4,3,4,4,3,2,3,1,5,4,4,1,4,4,3,5,4,4,3,5,5,4,3,4,4,3,1,2,3,1,2,2,0,3,2,0,3,1,0,5,3,3,3,4,3,3,3,3,4,4,4,4,5,4,2,0,3,3,2,4,3),
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+(0,1,0,3,0,4,0,3,0,2,4,3,1,0,3,2,2,1,3,1,2,2,3,1,1,1,2,1,3,0,1,2,0,1,3,2,1,3,0,5,5,1,0,0,1,3,2,1,0,3,0,0,1,0,0,0,0,0,3,4,0,1,1,1,3,2,0,2,0,1,0,2,3,3,1,2,3,0,1,0,1,0,4),
+(0,0,0,1,0,3,0,3,0,2,2,1,0,0,4,0,3,0,3,1,3,0,3,0,3,0,1,0,3,0,3,1,3,0,3,3,0,0,1,2,1,1,1,0,1,2,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,2,2,1,2,0,0,2,0,0,0,0,2,3,3,3,3,0,0,0,0,1,4),
+(0,0,0,3,0,3,0,0,0,0,3,1,1,0,3,0,1,0,2,0,1,0,0,0,0,0,0,0,1,0,3,0,2,0,2,3,0,0,2,2,3,1,2,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,2,0,0,0,0,2,3),
+(2,4,0,5,0,5,0,4,0,3,4,3,3,3,4,3,3,3,4,3,4,4,5,4,5,5,5,2,3,0,5,5,4,1,5,4,3,1,5,4,3,4,4,3,3,4,3,3,0,3,2,0,2,3,0,3,0,0,3,3,0,5,3,2,3,3,0,3,0,3,0,3,4,5,4,5,3,0,4,3,0,3,4),
+(0,3,0,3,0,3,0,3,0,3,3,4,3,2,3,2,3,0,4,3,3,3,3,3,3,3,3,0,3,2,4,3,3,1,3,4,3,4,4,4,3,4,4,3,2,4,4,1,0,2,0,0,1,1,0,2,0,0,3,1,0,5,3,2,1,3,0,3,0,1,2,4,3,2,4,3,3,0,3,2,0,4,4),
+(0,3,0,3,0,1,0,0,0,1,4,3,3,2,3,1,3,1,4,2,3,2,4,2,3,4,3,0,2,2,3,3,3,0,3,3,3,0,3,4,1,3,3,0,3,4,3,3,0,1,1,0,1,0,0,0,4,0,3,0,0,3,1,2,1,3,0,4,0,1,0,4,3,3,4,3,3,0,2,0,0,3,3),
+(0,3,0,4,0,1,0,3,0,3,4,3,3,0,3,3,3,1,3,1,3,3,4,3,3,3,0,0,3,1,5,3,3,1,3,3,2,5,4,3,3,4,5,3,2,5,3,4,0,1,0,0,0,0,0,2,0,0,1,1,0,4,2,2,1,3,0,3,0,2,0,4,4,3,5,3,2,0,1,1,0,3,4),
+(0,5,0,4,0,5,0,2,0,4,4,3,3,2,3,3,3,1,4,3,4,1,5,3,4,3,4,0,4,2,4,3,4,1,5,4,0,4,4,4,4,5,4,1,3,5,4,2,1,4,1,1,3,2,0,3,1,0,3,2,1,4,3,3,3,4,0,4,0,3,0,4,4,4,3,3,3,0,4,2,0,3,4),
+(1,4,0,4,0,3,0,1,0,3,3,3,1,1,3,3,2,2,3,3,1,0,3,2,2,1,2,0,3,1,2,1,2,0,3,2,0,2,2,3,3,4,3,0,3,3,1,2,0,1,1,3,1,2,0,0,3,0,1,1,0,3,2,2,3,3,0,3,0,0,0,2,3,3,4,3,3,0,1,0,0,1,4),
+(0,4,0,4,0,4,0,0,0,3,4,4,3,1,4,2,3,2,3,3,3,1,4,3,4,0,3,0,4,2,3,3,2,2,5,4,2,1,3,4,3,4,3,1,3,3,4,2,0,2,1,0,3,3,0,0,2,0,3,1,0,4,4,3,4,3,0,4,0,1,0,2,4,4,4,4,4,0,3,2,0,3,3),
+(0,0,0,1,0,4,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,3,2,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,2),
+(0,2,0,3,0,4,0,4,0,1,3,3,3,0,4,0,2,1,2,1,1,1,2,0,3,1,1,0,1,0,3,1,0,0,3,3,2,0,1,1,0,0,0,0,0,1,0,2,0,2,2,0,3,1,0,0,1,0,1,1,0,1,2,0,3,0,0,0,0,1,0,0,3,3,4,3,1,0,1,0,3,0,2),
+(0,0,0,3,0,5,0,0,0,0,1,0,2,0,3,1,0,1,3,0,0,0,2,0,0,0,1,0,0,0,1,1,0,0,4,0,0,0,2,3,0,1,4,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,1,0,0,0,0,0,0,0,2,0,0,3,0,0,0,0,0,3),
+(0,2,0,5,0,5,0,1,0,2,4,3,3,2,5,1,3,2,3,3,3,0,4,1,2,0,3,0,4,0,2,2,1,1,5,3,0,0,1,4,2,3,2,0,3,3,3,2,0,2,4,1,1,2,0,1,1,0,3,1,0,1,3,1,2,3,0,2,0,0,0,1,3,5,4,4,4,0,3,0,0,1,3),
+(0,4,0,5,0,4,0,4,0,4,5,4,3,3,4,3,3,3,4,3,4,4,5,3,4,5,4,2,4,2,3,4,3,1,4,4,1,3,5,4,4,5,5,4,4,5,5,5,2,3,3,1,4,3,1,3,3,0,3,3,1,4,3,4,4,4,0,3,0,4,0,3,3,4,4,5,0,0,4,3,0,4,5),
+(0,4,0,4,0,3,0,3,0,3,4,4,4,3,3,2,4,3,4,3,4,3,5,3,4,3,2,1,4,2,4,4,3,1,3,4,2,4,5,5,3,4,5,4,1,5,4,3,0,3,2,2,3,2,1,3,1,0,3,3,3,5,3,3,3,5,4,4,2,3,3,4,3,3,3,2,1,0,3,2,1,4,3),
+(0,4,0,5,0,4,0,3,0,3,5,5,3,2,4,3,4,0,5,4,4,1,4,4,4,3,3,3,4,3,5,5,2,3,3,4,1,2,5,5,3,5,5,2,3,5,5,4,0,3,2,0,3,3,1,1,5,1,4,1,0,4,3,2,3,5,0,4,0,3,0,5,4,3,4,3,0,0,4,1,0,4,4),
+(1,3,0,4,0,2,0,2,0,2,5,5,3,3,3,3,3,0,4,2,3,4,4,4,3,4,0,0,3,4,5,4,3,3,3,3,2,5,5,4,5,5,5,4,3,5,5,5,1,3,1,0,1,0,0,3,2,0,4,2,0,5,2,3,2,4,1,3,0,3,0,4,5,4,5,4,3,0,4,2,0,5,4),
+(0,3,0,4,0,5,0,3,0,3,4,4,3,2,3,2,3,3,3,3,3,2,4,3,3,2,2,0,3,3,3,3,3,1,3,3,3,0,4,4,3,4,4,1,1,4,4,2,0,3,1,0,1,1,0,4,1,0,2,3,1,3,3,1,3,4,0,3,0,1,0,3,1,3,0,0,1,0,2,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,3,0,2,0,3,0,1,5,4,3,3,3,1,4,2,1,2,3,4,4,2,4,4,5,0,3,1,4,3,4,0,4,3,3,3,2,3,2,5,3,4,3,2,2,3,0,0,3,0,2,1,0,1,2,0,0,0,0,2,1,1,3,1,0,2,0,4,0,3,4,4,4,5,2,0,2,0,0,1,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,1,0,0,1,1,0,0,0,4,2,1,1,0,1,0,3,2,0,0,3,1,1,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,1,0,0,0,2,0,0,0,1,4,0,4,2,1,0,0,0,0,0,1),
+(0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0,3,1,0,0,0,2,0,2,1,0,0,1,2,1,0,1,1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,1,3,1,0,0,0,0,0,1,0,0,2,1,0,0,0,0,0,0,0,0,2),
+(0,4,0,4,0,4,0,3,0,4,4,3,4,2,4,3,2,0,4,4,4,3,5,3,5,3,3,2,4,2,4,3,4,3,1,4,0,2,3,4,4,4,3,3,3,4,4,4,3,4,1,3,4,3,2,1,2,1,3,3,3,4,4,3,3,5,0,4,0,3,0,4,3,3,3,2,1,0,3,0,0,3,3),
+(0,4,0,3,0,3,0,3,0,3,5,5,3,3,3,3,4,3,4,3,3,3,4,4,4,3,3,3,3,4,3,5,3,3,1,3,2,4,5,5,5,5,4,3,4,5,5,3,2,2,3,3,3,3,2,3,3,1,2,3,2,4,3,3,3,4,0,4,0,2,0,4,3,2,2,1,2,0,3,0,0,4,1),
+)
+
+class JapaneseContextAnalysis:
+    def __init__(self):
+        self.reset()
+
+    def reset(self):
+        self._mTotalRel = 0  # total sequence received
+        # category counters, each interger counts sequence in its category
+        self._mRelSample = [0] * NUM_OF_CATEGORY
+        # if last byte in current buffer is not the last byte of a character,
+        # we need to know how many bytes to skip in next buffer
+        self._mNeedToSkipCharNum = 0
+        self._mLastCharOrder = -1  # The order of previous char
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._mDone = False
+
+    def feed(self, aBuf, aLen):
+        if self._mDone:
+            return
+
+        # The buffer we got is byte oriented, and a character may span in more than one
+        # buffers. In case the last one or two byte in last buffer is not
+        # complete, we record how many byte needed to complete that character
+        # and skip these bytes here.  We can choose to record those bytes as
+        # well and analyse the character once it is complete, but since a
+        # character will not make much difference, by simply skipping
+        # this character will simply our logic and improve performance.
+        i = self._mNeedToSkipCharNum
+        while i < aLen:
+            order, charLen = self.get_order(aBuf[i:i + 2])
+            i += charLen
+            if i > aLen:
+                self._mNeedToSkipCharNum = i - aLen
+                self._mLastCharOrder = -1
+            else:
+                if (order != -1) and (self._mLastCharOrder != -1):
+                    self._mTotalRel += 1
+                    if self._mTotalRel > MAX_REL_THRESHOLD:
+                        self._mDone = True
+                        break
+                    self._mRelSample[jp2CharContext[self._mLastCharOrder][order]] += 1
+                self._mLastCharOrder = order
+
+    def got_enough_data(self):
+        return self._mTotalRel > ENOUGH_REL_THRESHOLD
+
+    def get_confidence(self):
+        # This is just one way to calculate confidence. It works well for me.
+        if self._mTotalRel > MINIMUM_DATA_THRESHOLD:
+            return (self._mTotalRel - self._mRelSample[0]) / self._mTotalRel
+        else:
+            return DONT_KNOW
+
+    def get_order(self, aBuf):
+        return -1, 1
+
+class SJISContextAnalysis(JapaneseContextAnalysis):
+    def __init__(self):
+        self.charset_name = "SHIFT_JIS"
+
+    def get_charset_name(self):
+        return self.charset_name
+
+    def get_order(self, aBuf):
+        if not aBuf:
+            return -1, 1
+        # find out current char's byte length
+        first_char = wrap_ord(aBuf[0])
+        if ((0x81 <= first_char <= 0x9F) or (0xE0 <= first_char <= 0xFC)):
+            charLen = 2
+            if (first_char == 0x87) or (0xFA <= first_char <= 0xFC):
+                self.charset_name = "CP932"
+        else:
+            charLen = 1
+
+        # return its order if it is hiragana
+        if len(aBuf) > 1:
+            second_char = wrap_ord(aBuf[1])
+            if (first_char == 202) and (0x9F <= second_char <= 0xF1):
+                return second_char - 0x9F, charLen
+
+        return -1, charLen
+
+class EUCJPContextAnalysis(JapaneseContextAnalysis):
+    def get_order(self, aBuf):
+        if not aBuf:
+            return -1, 1
+        # find out current char's byte length
+        first_char = wrap_ord(aBuf[0])
+        if (first_char == 0x8E) or (0xA1 <= first_char <= 0xFE):
+            charLen = 2
+        elif first_char == 0x8F:
+            charLen = 3
+        else:
+            charLen = 1
+
+        # return its order if it is hiragana
+        if len(aBuf) > 1:
+            second_char = wrap_ord(aBuf[1])
+            if (first_char == 0xA4) and (0xA1 <= second_char <= 0xF3):
+                return second_char - 0xA1, charLen
+
+        return -1, charLen
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py
new file mode 100644
index 0000000..e5788fc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py
@@ -0,0 +1,229 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+# this table is modified base on win1251BulgarianCharToOrderMap, so
+# only number <64 is sure valid
+
+Latin5_BulgarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 77, 90, 99,100, 72,109,107,101, 79,185, 81,102, 76, 94, 82,  # 40
+110,186,108, 91, 74,119, 84, 96,111,187,115,253,253,253,253,253,  # 50
+253, 65, 69, 70, 66, 63, 68,112,103, 92,194,104, 95, 86, 87, 71,  # 60
+116,195, 85, 93, 97,113,196,197,198,199,200,253,253,253,253,253,  # 70
+194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,  # 80
+210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,  # 90
+ 81,226,227,228,229,230,105,231,232,233,234,235,236, 45,237,238,  # a0
+ 31, 32, 35, 43, 37, 44, 55, 47, 40, 59, 33, 46, 38, 36, 41, 30,  # b0
+ 39, 28, 34, 51, 48, 49, 53, 50, 54, 57, 61,239, 67,240, 60, 56,  # c0
+  1, 18,  9, 20, 11,  3, 23, 15,  2, 26, 12, 10, 14,  6,  4, 13,  # d0
+  7,  8,  5, 19, 29, 25, 22, 21, 27, 24, 17, 75, 52,241, 42, 16,  # e0
+ 62,242,243,244, 58,245, 98,246,247,248,249,250,251, 91,252,253,  # f0
+)
+
+win1251BulgarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 77, 90, 99,100, 72,109,107,101, 79,185, 81,102, 76, 94, 82,  # 40
+110,186,108, 91, 74,119, 84, 96,111,187,115,253,253,253,253,253,  # 50
+253, 65, 69, 70, 66, 63, 68,112,103, 92,194,104, 95, 86, 87, 71,  # 60
+116,195, 85, 93, 97,113,196,197,198,199,200,253,253,253,253,253,  # 70
+206,207,208,209,210,211,212,213,120,214,215,216,217,218,219,220,  # 80
+221, 78, 64, 83,121, 98,117,105,222,223,224,225,226,227,228,229,  # 90
+ 88,230,231,232,233,122, 89,106,234,235,236,237,238, 45,239,240,  # a0
+ 73, 80,118,114,241,242,243,244,245, 62, 58,246,247,248,249,250,  # b0
+ 31, 32, 35, 43, 37, 44, 55, 47, 40, 59, 33, 46, 38, 36, 41, 30,  # c0
+ 39, 28, 34, 51, 48, 49, 53, 50, 54, 57, 61,251, 67,252, 60, 56,  # d0
+  1, 18,  9, 20, 11,  3, 23, 15,  2, 26, 12, 10, 14,  6,  4, 13,  # e0
+  7,  8,  5, 19, 29, 25, 22, 21, 27, 24, 17, 75, 52,253, 42, 16,  # f0
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 96.9392%
+# first 1024 sequences:3.0618%
+# rest  sequences:     0.2992%
+# negative sequences:  0.0020%
+BulgarianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,2,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,3,2,2,3,2,2,1,2,2,
+3,1,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,3,3,3,3,3,3,3,3,0,3,0,1,
+0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,2,3,3,3,3,3,3,3,3,0,3,1,0,
+0,1,0,0,0,0,0,0,0,0,1,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,1,3,2,3,3,3,3,3,3,3,3,0,3,0,0,
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+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,0,1,1,1,1,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+)
+
+Latin5BulgarianModel = {
+  'charToOrderMap': Latin5_BulgarianCharToOrderMap,
+  'precedenceMatrix': BulgarianLangModel,
+  'mTypicalPositiveRatio': 0.969392,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-5"
+}
+
+Win1251BulgarianModel = {
+  'charToOrderMap': win1251BulgarianCharToOrderMap,
+  'precedenceMatrix': BulgarianLangModel,
+  'mTypicalPositiveRatio': 0.969392,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1251"
+}
+
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py
new file mode 100644
index 0000000..a86f54b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py
@@ -0,0 +1,329 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# KOI8-R language model
+# Character Mapping Table:
+KOI8R_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,  # 80
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,  # 90
+223,224,225, 68,226,227,228,229,230,231,232,233,234,235,236,237,  # a0
+238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,  # b0
+ 27,  3, 21, 28, 13,  2, 39, 19, 26,  4, 23, 11,  8, 12,  5,  1,  # c0
+ 15, 16,  9,  7,  6, 14, 24, 10, 17, 18, 20, 25, 30, 29, 22, 54,  # d0
+ 59, 37, 44, 58, 41, 48, 53, 46, 55, 42, 60, 36, 49, 38, 31, 34,  # e0
+ 35, 43, 45, 32, 40, 52, 56, 33, 61, 62, 51, 57, 47, 63, 50, 70,  # f0
+)
+
+win1251_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+239,240,241,242,243,244,245,246, 68,247,248,249,250,251,252,253,
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+)
+
+latin5_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+239, 68,240,241,242,243,244,245,246,247,248,249,250,251,252,255,
+)
+
+macCyrillic_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+239,240,241,242,243,244,245,246,247,248,249,250,251,252, 68, 16,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27,255,
+)
+
+IBM855_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194, 68,195,196,197,198,199,200,201,202,203,204,205,
+206,207,208,209,210,211,212,213,214,215,216,217, 27, 59, 54, 70,
+  3, 37, 21, 44, 28, 58, 13, 41,  2, 48, 39, 53, 19, 46,218,219,
+220,221,222,223,224, 26, 55,  4, 42,225,226,227,228, 23, 60,229,
+230,231,232,233,234,235, 11, 36,236,237,238,239,240,241,242,243,
+  8, 49, 12, 38,  5, 31,  1, 34, 15,244,245,246,247, 35, 16,248,
+ 43,  9, 45,  7, 32,  6, 40, 14, 52, 24, 56, 10, 33, 17, 61,249,
+250, 18, 62, 20, 51, 25, 57, 30, 47, 29, 63, 22, 50,251,252,255,
+)
+
+IBM866_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+239, 68,240,241,242,243,244,245,246,247,248,249,250,251,252,255,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 97.6601%
+# first 1024 sequences: 2.3389%
+# rest  sequences:      0.1237%
+# negative sequences:   0.0009%
+RussianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,1,3,3,3,3,1,3,3,3,2,3,2,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,3,2,2,2,2,2,0,0,2,
+3,3,3,2,3,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,3,2,3,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,2,2,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,2,3,3,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,2,1,
+0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,2,1,
+0,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,2,2,2,3,1,3,3,1,3,3,3,3,2,2,3,0,2,2,2,3,3,2,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,3,3,2,2,3,2,3,3,3,2,1,2,2,0,1,2,2,2,2,2,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,3,0,2,2,3,3,2,1,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,1,2,3,2,2,3,2,3,3,3,3,2,2,3,0,3,2,2,3,1,1,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,2,3,3,3,3,2,2,2,0,3,3,3,2,2,2,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,2,3,2,3,3,3,3,3,3,2,3,2,2,0,1,3,2,1,2,2,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,2,1,1,3,0,1,1,1,1,2,1,1,0,2,2,2,1,2,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,2,2,2,2,1,3,2,3,2,3,2,1,2,2,0,1,1,2,1,2,1,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,2,2,3,2,3,3,3,2,2,2,2,0,2,2,2,2,3,1,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,2,3,2,2,3,3,3,3,3,3,3,3,3,1,3,2,0,0,3,3,3,3,2,3,3,3,3,2,3,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,3,2,2,3,3,0,2,1,0,3,2,3,2,3,0,0,1,2,0,0,1,0,1,2,1,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,3,0,2,3,3,3,3,2,3,3,3,3,1,2,2,0,0,2,3,2,2,2,3,2,3,2,2,3,0,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,0,2,3,2,3,0,1,2,3,3,2,0,2,3,0,0,2,3,2,2,0,1,3,1,3,2,2,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,3,0,2,3,3,3,3,3,3,3,3,2,1,3,2,0,0,2,2,3,3,3,2,3,3,0,2,2,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,2,2,2,3,3,0,0,1,1,1,1,1,2,0,0,1,1,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,3,3,3,3,3,0,3,2,3,3,2,3,2,0,2,1,0,1,1,0,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,2,2,2,2,3,1,3,2,3,1,1,2,1,0,2,2,2,2,1,3,1,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+2,2,3,3,3,3,3,1,2,2,1,3,1,0,3,0,0,3,0,0,0,1,1,0,1,2,1,0,0,0,0,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,2,1,1,3,3,3,2,2,1,2,2,3,1,1,2,0,0,2,2,1,3,0,0,2,1,1,2,1,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,3,3,3,1,2,2,2,1,2,1,3,3,1,1,2,1,2,1,2,2,0,2,0,0,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,3,2,1,3,2,2,3,2,0,3,2,0,3,0,1,0,1,1,0,0,1,1,1,1,0,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,3,3,3,2,2,2,3,3,1,2,1,2,1,0,1,0,1,1,0,1,0,0,2,1,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,1,1,2,1,2,3,3,2,2,1,2,2,3,0,2,1,0,0,2,2,3,2,1,2,2,2,2,2,3,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,1,1,0,1,1,2,2,1,1,3,0,0,1,3,1,1,1,0,0,0,1,0,1,1,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,3,3,3,2,0,0,0,2,1,0,1,0,2,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,1,0,0,2,3,2,2,2,1,2,2,2,1,2,1,0,0,1,1,1,0,2,0,1,1,1,0,0,1,1,
+1,0,0,0,0,0,1,2,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,0,0,0,0,1,0,0,0,0,3,0,1,2,1,0,0,0,0,0,0,0,1,1,0,0,1,1,
+1,0,1,0,1,2,0,0,1,1,2,1,0,1,1,1,1,0,1,1,1,1,0,1,0,0,1,0,0,1,1,0,
+2,2,3,2,2,2,3,1,2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,0,1,0,1,1,1,0,2,1,
+1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,0,1,1,1,0,1,1,0,
+3,3,3,2,2,2,2,3,2,2,1,1,2,2,2,2,1,1,3,1,2,1,2,0,0,1,1,0,1,0,2,1,
+1,1,1,1,1,2,1,0,1,1,1,1,0,1,0,0,1,1,0,0,1,0,1,0,0,1,0,0,0,1,1,0,
+2,0,0,1,0,3,2,2,2,2,1,2,1,2,1,2,0,0,0,2,1,2,2,1,1,2,2,0,1,1,0,2,
+1,1,1,1,1,0,1,1,1,2,1,1,1,2,1,0,1,2,1,1,1,1,0,1,1,1,0,0,1,0,0,1,
+1,3,2,2,2,1,1,1,2,3,0,0,0,0,2,0,2,2,1,0,0,0,0,0,0,1,0,0,0,0,1,1,
+1,0,1,1,0,1,0,1,1,0,1,1,0,2,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,
+2,3,2,3,2,1,2,2,2,2,1,0,0,0,2,0,0,1,1,0,0,0,0,0,0,0,1,1,0,0,2,1,
+1,1,2,1,0,2,0,0,1,0,1,0,0,1,0,0,1,1,0,1,1,0,0,0,0,0,1,0,0,0,0,0,
+3,0,0,1,0,2,2,2,3,2,2,2,2,2,2,2,0,0,0,2,1,2,1,1,1,2,2,0,0,0,1,2,
+1,1,1,1,1,0,1,2,1,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,0,1,
+2,3,2,3,3,2,0,1,1,1,0,0,1,0,2,0,1,1,3,1,0,0,0,0,0,0,0,1,0,0,2,1,
+1,1,1,1,1,1,1,0,1,0,1,1,1,1,0,1,1,1,0,0,1,1,0,1,0,0,0,0,0,0,1,0,
+2,3,3,3,3,1,2,2,2,2,0,1,1,0,2,1,1,1,2,1,0,1,1,0,0,1,0,1,0,0,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,2,0,0,1,1,2,2,1,0,0,2,0,1,1,3,0,0,1,0,0,0,0,0,1,0,1,2,1,
+1,1,2,0,1,1,1,0,1,0,1,1,0,1,0,1,1,1,1,0,1,0,0,0,0,0,0,1,0,1,1,0,
+1,3,2,3,2,1,0,0,2,2,2,0,1,0,2,0,1,1,1,0,1,0,0,0,3,0,1,1,0,0,2,1,
+1,1,1,0,1,1,0,0,0,0,1,1,0,1,0,0,2,1,1,0,1,0,0,0,1,0,1,0,0,1,1,0,
+3,1,2,1,1,2,2,2,2,2,2,1,2,2,1,1,0,0,0,2,2,2,0,0,0,1,2,1,0,1,0,1,
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,2,1,1,1,0,1,0,1,1,0,1,1,1,0,0,1,
+3,0,0,0,0,2,0,1,1,1,1,1,1,1,0,1,0,0,0,1,1,1,0,1,0,1,1,0,0,1,0,1,
+1,1,0,0,1,0,0,0,1,0,1,1,0,0,1,0,1,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1,
+1,3,3,2,2,0,0,0,2,2,0,0,0,1,2,0,1,1,2,0,0,0,0,0,0,0,0,1,0,0,2,1,
+0,1,1,0,0,1,1,0,0,0,1,1,0,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+2,3,2,3,2,0,0,0,0,1,1,0,0,0,2,0,2,0,2,0,0,0,0,0,1,0,0,1,0,0,1,1,
+1,1,2,0,1,2,1,0,1,1,2,1,1,1,1,1,2,1,1,0,1,0,0,1,1,1,1,1,0,1,1,0,
+1,3,2,2,2,1,0,0,2,2,1,0,1,2,2,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,1,1,
+0,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,0,2,3,1,2,2,2,2,2,2,1,1,0,0,0,1,0,1,0,2,1,1,1,0,0,0,0,1,
+1,1,0,1,1,0,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
+2,0,2,0,0,1,0,3,2,1,2,1,2,2,0,1,0,0,0,2,1,0,0,2,1,1,1,1,0,2,0,2,
+2,1,1,1,1,1,1,1,1,1,1,1,1,2,1,0,1,1,1,1,0,0,0,1,1,1,1,0,1,0,0,1,
+1,2,2,2,2,1,0,0,1,0,0,0,0,0,2,0,1,1,1,1,0,0,0,0,1,0,1,2,0,0,2,0,
+1,0,1,1,1,2,1,0,1,0,1,1,0,0,1,0,1,1,1,0,1,0,0,0,1,0,0,1,0,1,1,0,
+2,1,2,2,2,0,3,0,1,1,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+0,0,0,1,1,1,0,0,1,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,
+1,2,2,3,2,2,0,0,1,1,2,0,1,2,1,0,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,1,
+0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,
+2,2,1,1,2,1,2,2,2,2,2,1,2,2,0,1,0,0,0,1,2,2,2,1,2,1,1,1,1,1,2,1,
+1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0,1,1,1,0,0,0,0,1,1,1,0,1,1,0,0,1,
+1,2,2,2,2,0,1,0,2,2,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,
+0,0,1,0,0,1,0,0,0,0,1,0,1,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,0,0,2,2,2,0,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,
+0,1,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,0,0,0,1,0,0,1,1,2,0,0,0,0,1,0,1,0,0,1,0,0,2,0,0,0,1,
+0,0,1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,1,1,2,0,2,1,1,1,1,0,2,2,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,
+0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+1,0,2,1,2,0,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,
+0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+1,0,0,0,0,2,0,1,2,1,0,1,1,1,0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,0,0,1,
+0,0,0,0,0,1,0,0,1,1,0,0,1,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,
+2,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,0,0,0,1,0,0,0,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,1,1,0,1,0,1,0,0,1,1,1,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,1,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,1,0,1,1,0,1,0,1,0,0,0,0,1,1,0,1,1,0,0,0,0,0,1,0,1,1,0,1,0,0,0,
+0,1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
+)
+
+Koi8rModel = {
+  'charToOrderMap': KOI8R_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "KOI8-R"
+}
+
+Win1251CyrillicModel = {
+  'charToOrderMap': win1251_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1251"
+}
+
+Latin5CyrillicModel = {
+  'charToOrderMap': latin5_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-5"
+}
+
+MacCyrillicModel = {
+  'charToOrderMap': macCyrillic_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "MacCyrillic"
+};
+
+Ibm866Model = {
+  'charToOrderMap': IBM866_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "IBM866"
+}
+
+Ibm855Model = {
+  'charToOrderMap': IBM855_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "IBM855"
+}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py
new file mode 100644
index 0000000..ddb5837
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py
@@ -0,0 +1,225 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+Latin7_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 82,100,104, 94, 98,101,116,102,111,187,117, 92, 88,113, 85,  # 40
+ 79,118,105, 83, 67,114,119, 95, 99,109,188,253,253,253,253,253,  # 50
+253, 72, 70, 80, 81, 60, 96, 93, 89, 68,120, 97, 77, 86, 69, 55,  # 60
+ 78,115, 65, 66, 58, 76,106,103, 87,107,112,253,253,253,253,253,  # 70
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 80
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 90
+253,233, 90,253,253,253,253,253,253,253,253,253,253, 74,253,253,  # a0
+253,253,253,253,247,248, 61, 36, 46, 71, 73,253, 54,253,108,123,  # b0
+110, 31, 51, 43, 41, 34, 91, 40, 52, 47, 44, 53, 38, 49, 59, 39,  # c0
+ 35, 48,250, 37, 33, 45, 56, 50, 84, 57,120,121, 17, 18, 22, 15,  # d0
+124,  1, 29, 20, 21,  3, 32, 13, 25,  5, 11, 16, 10,  6, 30,  4,  # e0
+  9,  8, 14,  7,  2, 12, 28, 23, 42, 24, 64, 75, 19, 26, 27,253,  # f0
+)
+
+win1253_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 82,100,104, 94, 98,101,116,102,111,187,117, 92, 88,113, 85,  # 40
+ 79,118,105, 83, 67,114,119, 95, 99,109,188,253,253,253,253,253,  # 50
+253, 72, 70, 80, 81, 60, 96, 93, 89, 68,120, 97, 77, 86, 69, 55,  # 60
+ 78,115, 65, 66, 58, 76,106,103, 87,107,112,253,253,253,253,253,  # 70
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 80
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 90
+253,233, 61,253,253,253,253,253,253,253,253,253,253, 74,253,253,  # a0
+253,253,253,253,247,253,253, 36, 46, 71, 73,253, 54,253,108,123,  # b0
+110, 31, 51, 43, 41, 34, 91, 40, 52, 47, 44, 53, 38, 49, 59, 39,  # c0
+ 35, 48,250, 37, 33, 45, 56, 50, 84, 57,120,121, 17, 18, 22, 15,  # d0
+124,  1, 29, 20, 21,  3, 32, 13, 25,  5, 11, 16, 10,  6, 30,  4,  # e0
+  9,  8, 14,  7,  2, 12, 28, 23, 42, 24, 64, 75, 19, 26, 27,253,  # f0
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 98.2851%
+# first 1024 sequences:1.7001%
+# rest  sequences:     0.0359%
+# negative sequences:  0.0148%
+GreekLangModel = (
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,2,2,3,3,3,3,3,3,3,3,1,3,3,3,0,2,2,3,3,0,3,0,3,2,0,3,3,3,0,
+3,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,0,3,3,0,3,2,3,3,0,3,2,3,3,3,0,0,3,0,3,0,3,3,2,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,
+0,2,3,2,2,3,3,3,3,3,3,3,3,0,3,3,3,3,0,2,3,3,0,3,3,3,3,2,3,3,3,0,
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+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+)
+
+Latin7GreekModel = {
+  'charToOrderMap': Latin7_CharToOrderMap,
+  'precedenceMatrix': GreekLangModel,
+  'mTypicalPositiveRatio': 0.982851,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-7"
+}
+
+Win1253GreekModel = {
+  'charToOrderMap': win1253_CharToOrderMap,
+  'precedenceMatrix': GreekLangModel,
+  'mTypicalPositiveRatio': 0.982851,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1253"
+}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py
new file mode 100644
index 0000000..75f2bc7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py
@@ -0,0 +1,201 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+#          Simon Montagu
+# Portions created by the Initial Developer are Copyright (C) 2005
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Shoshannah Forbes - original C code (?)
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Windows-1255 language model
+# Character Mapping Table:
+win1255_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 69, 91, 79, 80, 92, 89, 97, 90, 68,111,112, 82, 73, 95, 85,  # 40
+ 78,121, 86, 71, 67,102,107, 84,114,103,115,253,253,253,253,253,  # 50
+253, 50, 74, 60, 61, 42, 76, 70, 64, 53,105, 93, 56, 65, 54, 49,  # 60
+ 66,110, 51, 43, 44, 63, 81, 77, 98, 75,108,253,253,253,253,253,  # 70
+124,202,203,204,205, 40, 58,206,207,208,209,210,211,212,213,214,
+215, 83, 52, 47, 46, 72, 32, 94,216,113,217,109,218,219,220,221,
+ 34,116,222,118,100,223,224,117,119,104,125,225,226, 87, 99,227,
+106,122,123,228, 55,229,230,101,231,232,120,233, 48, 39, 57,234,
+ 30, 59, 41, 88, 33, 37, 36, 31, 29, 35,235, 62, 28,236,126,237,
+238, 38, 45,239,240,241,242,243,127,244,245,246,247,248,249,250,
+  9,  8, 20, 16,  3,  2, 24, 14, 22,  1, 25, 15,  4, 11,  6, 23,
+ 12, 19, 13, 26, 18, 27, 21, 17,  7, 10,  5,251,252,128, 96,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 98.4004%
+# first 1024 sequences: 1.5981%
+# rest  sequences:      0.087%
+# negative sequences:   0.0015%
+HebrewLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,2,3,2,1,2,0,1,0,0,
+3,0,3,1,0,0,1,3,2,0,1,1,2,0,2,2,2,1,1,1,1,2,1,1,1,2,0,0,2,2,0,1,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,2,
+1,2,1,2,1,2,0,0,2,0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,
+1,2,1,3,1,1,0,0,2,0,0,0,1,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,0,1,2,2,1,3,
+1,2,1,1,2,2,0,0,2,2,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,1,0,1,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,2,2,2,2,3,2,
+1,2,1,2,2,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,2,3,2,2,3,2,2,2,1,2,2,2,2,
+1,2,1,1,2,2,0,1,2,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,0,2,2,2,2,2,
+0,2,0,2,2,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,0,2,2,2,
+0,2,1,2,2,2,0,0,2,1,0,0,0,0,1,0,1,0,0,0,0,0,0,2,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,2,1,2,3,2,2,2,
+1,2,1,2,2,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,0,
+3,3,3,3,3,3,3,3,3,2,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,1,0,2,0,2,
+0,2,1,2,2,2,0,0,1,2,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,2,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,2,3,2,2,3,2,1,2,1,1,1,
+0,1,1,1,1,1,3,0,1,0,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,1,1,0,0,1,0,0,1,0,0,0,0,
+0,0,1,0,0,0,0,0,2,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,2,2,2,2,
+0,2,0,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,2,3,3,3,2,1,2,3,3,2,3,3,3,3,2,3,2,1,2,0,2,1,2,
+0,2,0,2,2,2,0,0,1,2,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,
+3,3,3,3,3,3,3,3,3,2,3,3,3,1,2,2,3,3,2,3,2,3,2,2,3,1,2,2,0,2,2,2,
+0,2,1,2,2,2,0,0,1,2,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,1,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,2,3,3,2,2,2,3,3,3,3,1,3,2,2,2,
+0,2,0,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,3,3,3,2,3,2,2,2,1,2,2,0,2,2,2,2,
+0,2,0,2,2,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,1,3,2,3,3,2,3,3,2,2,1,2,2,2,2,2,2,
+0,2,1,2,1,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,2,3,3,2,3,3,3,3,2,3,2,3,3,3,3,3,2,2,2,2,2,2,2,1,
+0,2,0,1,2,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,2,1,2,3,3,3,3,3,3,3,2,3,2,3,2,1,2,3,0,2,1,2,2,
+0,2,1,1,2,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,2,0,
+3,3,3,3,3,3,3,3,3,2,3,3,3,3,2,1,3,1,2,2,2,1,2,3,3,1,2,1,2,2,2,2,
+0,1,1,1,1,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,0,2,3,3,3,1,3,3,3,1,2,2,2,2,1,1,2,2,2,2,2,2,
+0,2,0,1,1,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,3,3,2,2,3,3,3,2,1,2,3,2,3,2,2,2,2,1,2,1,1,1,2,2,
+0,2,1,1,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,0,1,0,0,0,0,0,
+1,0,1,0,0,0,0,0,2,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,2,3,3,2,3,1,2,2,2,2,3,2,3,1,1,2,2,1,2,2,1,1,0,2,2,2,2,
+0,1,0,1,2,2,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,0,0,1,1,0,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,2,0,
+0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,1,0,1,0,1,1,0,1,1,0,0,0,1,1,0,1,1,1,0,0,0,0,0,0,1,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,1,1,0,1,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+3,2,2,1,2,2,2,2,2,2,2,1,2,2,1,2,2,1,1,1,1,1,1,1,1,2,1,1,0,3,3,3,
+0,3,0,2,2,2,2,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+2,2,2,3,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,2,1,2,2,2,1,1,1,2,0,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,2,2,2,2,2,2,0,2,2,0,0,0,0,0,0,
+0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,1,2,1,0,2,1,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+0,3,1,1,2,2,2,2,2,1,2,2,2,1,1,2,2,2,2,2,2,2,1,2,2,1,0,1,1,1,1,0,
+0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,1,1,1,1,2,1,1,2,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,0,0,0,0,0,
+0,0,2,0,0,0,0,0,0,0,0,1,1,0,0,0,0,1,1,0,0,1,1,0,0,0,0,0,0,1,0,0,
+2,1,1,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,1,2,1,2,1,1,1,1,0,0,0,0,
+0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,1,2,2,2,2,2,2,2,2,2,2,1,2,1,2,1,1,2,1,1,1,2,1,2,1,2,0,1,0,1,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,1,2,2,2,1,2,2,2,2,2,2,2,2,1,2,1,1,1,1,1,1,2,1,2,1,1,0,1,0,1,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,2,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,2,2,
+0,2,0,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,1,1,1,1,1,1,0,1,1,0,1,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,2,0,1,1,1,0,1,0,0,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,
+0,1,1,1,2,1,2,2,2,0,2,0,2,0,1,1,2,1,1,1,1,2,1,0,1,1,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,1,0,0,0,0,0,1,0,1,2,2,0,1,0,0,1,1,2,2,1,2,0,2,0,0,0,1,2,0,1,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,2,0,2,1,2,0,2,0,0,1,1,1,1,1,1,0,1,0,0,0,1,0,0,1,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,0,0,0,0,0,1,0,2,1,1,0,1,0,0,1,1,1,2,2,0,0,1,0,0,0,1,0,0,1,
+1,1,2,1,0,1,1,1,0,1,0,1,1,1,1,0,0,0,1,0,1,0,0,0,0,0,0,0,0,2,2,1,
+0,2,0,1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,0,0,1,0,1,1,1,1,0,0,0,0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,1,1,1,1,1,1,1,2,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,1,1,1,0,1,1,0,1,0,0,0,1,1,0,1,
+2,0,1,0,1,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,2,1,1,2,0,1,0,0,0,1,1,0,1,
+1,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,1,1,2,0,1,0,0,0,0,2,1,1,2,0,2,0,0,0,1,1,0,1,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,2,1,1,0,1,0,0,2,2,1,2,1,1,0,1,0,0,0,1,1,0,1,
+2,0,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,2,2,0,0,0,0,0,1,1,0,1,0,0,1,0,0,0,0,1,0,1,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,2,2,0,0,0,0,2,1,1,1,0,2,1,1,0,0,0,2,1,0,1,
+1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,1,1,2,0,1,0,0,1,1,0,2,1,1,0,1,0,0,0,1,1,0,1,
+2,2,1,1,1,0,1,1,0,1,1,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,2,1,1,0,1,0,0,1,1,0,1,2,1,0,2,0,0,0,1,1,0,1,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,
+0,1,0,0,2,0,2,1,1,0,1,0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,1,0,1,1,2,0,1,0,0,1,1,1,0,1,0,0,1,0,0,0,1,0,0,1,
+1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,0,0,0,0,0,1,0,1,1,0,0,1,0,0,2,1,1,1,1,1,0,1,0,0,0,0,1,0,1,
+0,1,1,1,2,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,2,1,0,0,0,0,0,1,1,1,1,1,0,1,0,0,0,1,1,0,0,
+)
+
+Win1255HebrewModel = {
+  'charToOrderMap': win1255_CharToOrderMap,
+  'precedenceMatrix': HebrewLangModel,
+  'mTypicalPositiveRatio': 0.984004,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1255"
+}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py
new file mode 100644
index 0000000..49d2f0f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py
@@ -0,0 +1,225 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+Latin2_HungarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 28, 40, 54, 45, 32, 50, 49, 38, 39, 53, 36, 41, 34, 35, 47,
+ 46, 71, 43, 33, 37, 57, 48, 64, 68, 55, 52,253,253,253,253,253,
+253,  2, 18, 26, 17,  1, 27, 12, 20,  9, 22,  7,  6, 13,  4,  8,
+ 23, 67, 10,  5,  3, 21, 19, 65, 62, 16, 11,253,253,253,253,253,
+159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,
+175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,
+191,192,193,194,195,196,197, 75,198,199,200,201,202,203,204,205,
+ 79,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,
+221, 51, 81,222, 78,223,224,225,226, 44,227,228,229, 61,230,231,
+232,233,234, 58,235, 66, 59,236,237,238, 60, 69, 63,239,240,241,
+ 82, 14, 74,242, 70, 80,243, 72,244, 15, 83, 77, 84, 30, 76, 85,
+245,246,247, 25, 73, 42, 24,248,249,250, 31, 56, 29,251,252,253,
+)
+
+win1250HungarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 28, 40, 54, 45, 32, 50, 49, 38, 39, 53, 36, 41, 34, 35, 47,
+ 46, 72, 43, 33, 37, 57, 48, 64, 68, 55, 52,253,253,253,253,253,
+253,  2, 18, 26, 17,  1, 27, 12, 20,  9, 22,  7,  6, 13,  4,  8,
+ 23, 67, 10,  5,  3, 21, 19, 65, 62, 16, 11,253,253,253,253,253,
+161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,
+177,178,179,180, 78,181, 69,182,183,184,185,186,187,188,189,190,
+191,192,193,194,195,196,197, 76,198,199,200,201,202,203,204,205,
+ 81,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,
+221, 51, 83,222, 80,223,224,225,226, 44,227,228,229, 61,230,231,
+232,233,234, 58,235, 66, 59,236,237,238, 60, 70, 63,239,240,241,
+ 84, 14, 75,242, 71, 82,243, 73,244, 15, 85, 79, 86, 30, 77, 87,
+245,246,247, 25, 74, 42, 24,248,249,250, 31, 56, 29,251,252,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 94.7368%
+# first 1024 sequences:5.2623%
+# rest  sequences:     0.8894%
+# negative sequences:  0.0009%
+HungarianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,2,2,3,3,1,1,2,2,2,2,2,1,2,
+3,2,2,3,3,3,3,3,2,3,3,3,3,3,3,1,2,3,3,3,3,2,3,3,1,1,3,3,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,
+3,2,1,3,3,3,3,3,2,3,3,3,3,3,1,1,2,3,3,3,3,3,3,3,1,1,3,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,1,1,2,3,3,3,1,3,3,3,3,3,1,3,3,2,2,0,3,2,3,
+0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,2,3,3,2,3,3,3,3,3,2,3,3,2,2,3,2,3,2,0,3,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,3,3,3,3,2,3,3,3,1,2,3,2,2,3,1,2,3,3,2,2,0,3,3,3,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,3,2,3,3,3,3,2,3,3,3,3,0,2,3,2,
+0,0,0,1,1,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,1,1,1,3,3,2,1,3,2,2,3,2,1,3,2,2,1,0,3,3,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,2,2,3,3,3,3,3,1,2,3,3,3,3,1,2,1,3,3,3,3,2,2,3,1,1,3,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,2,1,3,3,3,3,3,2,2,1,3,3,3,0,1,1,2,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,2,3,3,2,3,3,3,2,0,3,2,3,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,3,3,2,3,2,3,3,3,1,3,2,2,2,3,1,1,3,3,1,1,0,3,3,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,2,3,3,3,2,3,2,3,3,3,2,3,3,3,3,3,1,2,3,2,2,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,2,2,3,1,3,3,2,2,1,3,3,3,1,1,3,1,2,3,2,3,2,2,2,1,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,1,1,3,3,3,3,3,1,2,3,3,3,3,1,2,1,3,3,3,2,2,3,2,1,0,3,2,0,1,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,3,3,3,3,3,1,2,3,3,3,3,1,1,0,3,3,3,3,0,2,3,0,0,2,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,2,2,2,2,3,3,0,1,2,3,2,3,2,2,3,2,1,2,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,3,3,3,3,3,1,2,3,3,3,2,1,2,3,3,2,2,2,3,2,3,3,1,3,3,1,1,0,2,3,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,1,2,2,2,2,3,3,3,1,1,1,3,3,1,1,3,1,1,3,2,1,2,3,1,1,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,1,2,1,1,3,3,1,1,1,1,3,3,1,1,2,2,1,2,1,1,2,2,1,1,0,2,2,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,1,1,2,1,1,3,3,1,0,1,1,3,3,2,0,1,1,2,3,1,0,2,2,1,0,0,1,3,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,2,1,3,3,3,3,3,1,2,3,2,3,3,2,1,1,3,2,3,2,1,2,2,0,1,2,1,0,0,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,2,2,2,2,3,1,2,2,1,1,3,3,0,3,2,1,2,3,2,1,3,3,1,1,0,2,1,3,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,2,2,3,2,3,3,3,2,1,1,3,3,1,1,1,2,2,3,2,3,2,2,2,1,0,2,2,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+1,0,0,3,3,3,3,3,0,0,3,3,2,3,0,0,0,2,3,3,1,0,1,2,0,0,1,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,2,3,3,3,3,3,1,2,3,3,2,2,1,1,0,3,3,2,2,1,2,2,1,0,2,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,2,1,3,1,2,3,3,2,2,1,1,2,2,1,1,1,1,3,2,1,1,1,1,2,1,0,1,2,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+2,3,3,1,1,1,1,1,3,3,3,0,1,1,3,3,1,1,1,1,1,2,2,0,3,1,1,2,0,2,1,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,1,0,1,2,1,2,2,0,1,2,3,1,2,0,0,0,2,1,1,1,1,1,2,0,0,1,1,0,0,0,0,
+1,2,1,2,2,2,1,2,1,2,0,2,0,2,2,1,1,2,1,1,2,1,1,1,0,1,0,0,0,1,1,0,
+1,1,1,2,3,2,3,3,0,1,2,2,3,1,0,1,0,2,1,2,2,0,1,1,0,0,1,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,3,3,2,2,1,0,0,3,2,3,2,0,0,0,1,1,3,0,0,1,1,0,0,2,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,2,2,3,3,1,0,1,3,2,3,1,1,1,0,1,1,1,1,1,3,1,0,0,2,2,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,1,2,2,2,1,0,1,2,3,3,2,0,0,0,2,1,1,1,2,1,1,1,0,1,1,1,0,0,0,
+1,2,2,2,2,2,1,1,1,2,0,2,1,1,1,1,1,2,1,1,1,1,1,1,0,1,1,1,0,0,1,1,
+3,2,2,1,0,0,1,1,2,2,0,3,0,1,2,1,1,0,0,1,1,1,0,1,1,1,1,0,2,1,1,1,
+2,2,1,1,1,2,1,2,1,1,1,1,1,1,1,2,1,1,1,2,3,1,1,1,1,1,1,1,1,1,0,1,
+2,3,3,0,1,0,0,0,3,3,1,0,0,1,2,2,1,0,0,0,0,2,0,0,1,1,1,0,2,1,1,1,
+2,1,1,1,1,1,1,2,1,1,0,1,1,0,1,1,1,0,1,2,1,1,0,1,1,1,1,1,1,1,0,1,
+2,3,3,0,1,0,0,0,2,2,0,0,0,0,1,2,2,0,0,0,0,1,0,0,1,1,0,0,2,0,1,0,
+2,1,1,1,1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,2,0,1,1,1,1,1,0,1,
+3,2,2,0,1,0,1,0,2,3,2,0,0,1,2,2,1,0,0,1,1,1,0,0,2,1,0,1,2,2,1,1,
+2,1,1,1,1,1,1,2,1,1,1,1,1,1,0,2,1,0,1,1,0,1,1,1,0,1,1,2,1,1,0,1,
+2,2,2,0,0,1,0,0,2,2,1,1,0,0,2,1,1,0,0,0,1,2,0,0,2,1,0,0,2,1,1,1,
+2,1,1,1,1,2,1,2,1,1,1,2,2,1,1,2,1,1,1,2,1,1,1,1,1,1,1,1,1,1,0,1,
+1,2,3,0,0,0,1,0,3,2,1,0,0,1,2,1,1,0,0,0,0,2,1,0,1,1,0,0,2,1,2,1,
+1,1,0,0,0,1,0,1,1,1,1,1,2,0,0,1,0,0,0,2,0,0,1,1,1,1,1,1,1,1,0,1,
+3,0,0,2,1,2,2,1,0,0,2,1,2,2,0,0,0,2,1,1,1,0,1,1,0,0,1,1,2,0,0,0,
+1,2,1,2,2,1,1,2,1,2,0,1,1,1,1,1,1,1,1,1,2,1,1,0,0,1,1,1,1,0,0,1,
+1,3,2,0,0,0,1,0,2,2,2,0,0,0,2,2,1,0,0,0,0,3,1,1,1,1,0,0,2,1,1,1,
+2,1,0,1,1,1,0,1,1,1,1,1,1,1,0,2,1,0,0,1,0,1,1,0,1,1,1,1,1,1,0,1,
+2,3,2,0,0,0,1,0,2,2,0,0,0,0,2,1,1,0,0,0,0,2,1,0,1,1,0,0,2,1,1,0,
+2,1,1,1,1,2,1,2,1,2,0,1,1,1,0,2,1,1,1,2,1,1,1,1,0,1,1,1,1,1,0,1,
+3,1,1,2,2,2,3,2,1,1,2,2,1,1,0,1,0,2,2,1,1,1,1,1,0,0,1,1,0,1,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,0,0,0,0,0,2,2,0,0,0,0,2,2,1,0,0,0,1,1,0,0,1,2,0,0,2,1,1,1,
+2,2,1,1,1,2,1,2,1,1,0,1,1,1,1,2,1,1,1,2,1,1,1,1,0,1,2,1,1,1,0,1,
+1,0,0,1,2,3,2,1,0,0,2,0,1,1,0,0,0,1,1,1,1,0,1,1,0,0,1,0,0,0,0,0,
+1,2,1,2,1,2,1,1,1,2,0,2,1,1,1,0,1,2,0,0,1,1,1,0,0,0,0,0,0,0,0,0,
+2,3,2,0,0,0,0,0,1,1,2,1,0,0,1,1,1,0,0,0,0,2,0,0,1,1,0,0,2,1,1,1,
+2,1,1,1,1,1,1,2,1,0,1,1,1,1,0,2,1,1,1,1,1,1,0,1,0,1,1,1,1,1,0,1,
+1,2,2,0,1,1,1,0,2,2,2,0,0,0,3,2,1,0,0,0,1,1,0,0,1,1,0,1,1,1,0,0,
+1,1,0,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,2,1,1,1,0,0,1,1,1,0,1,0,1,
+2,1,0,2,1,1,2,2,1,1,2,1,1,1,0,0,0,1,1,0,1,1,1,1,0,0,1,1,1,0,0,0,
+1,2,2,2,2,2,1,1,1,2,0,2,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,0,0,1,0,
+1,2,3,0,0,0,1,0,2,2,0,0,0,0,2,2,0,0,0,0,0,1,0,0,1,0,0,0,2,0,1,0,
+2,1,1,1,1,1,0,2,0,0,0,1,2,1,1,1,1,0,1,2,0,1,0,1,0,1,1,1,0,1,0,1,
+2,2,2,0,0,0,1,0,2,1,2,0,0,0,1,1,2,0,0,0,0,1,0,0,1,1,0,0,2,1,0,1,
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,0,1,1,1,1,1,0,1,
+1,2,2,0,0,0,1,0,2,2,2,0,0,0,1,1,0,0,0,0,0,1,1,0,2,0,0,1,1,1,0,1,
+1,0,1,1,1,1,1,1,0,1,1,1,1,0,0,1,0,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,
+1,0,0,1,0,1,2,1,0,0,1,1,1,2,0,0,0,1,1,0,1,0,1,1,0,0,1,0,0,0,0,0,
+0,2,1,2,1,1,1,1,1,2,0,2,0,1,1,0,1,2,1,0,1,1,1,0,0,0,0,0,0,1,0,0,
+2,1,1,0,1,2,0,0,1,1,1,0,0,0,1,1,0,0,0,0,0,1,0,0,1,0,0,0,2,1,0,1,
+2,2,1,1,1,1,1,2,1,1,0,1,1,1,1,2,1,1,1,2,1,1,0,1,0,1,1,1,1,1,0,1,
+1,2,2,0,0,0,0,0,1,1,0,0,0,0,2,1,0,0,0,0,0,2,0,0,2,2,0,0,2,0,0,1,
+2,1,1,1,1,1,1,1,0,1,1,0,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,1,0,0,1,
+1,1,2,0,0,3,1,0,2,1,1,1,0,0,1,1,1,0,0,0,1,1,0,0,0,1,0,0,1,0,1,0,
+1,2,1,0,1,1,1,2,1,1,0,1,1,1,1,1,0,0,0,1,1,1,1,1,0,1,0,0,0,1,0,0,
+2,1,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,2,0,0,0,
+2,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,2,1,1,0,0,1,1,1,1,1,0,1,
+2,1,1,1,2,1,1,1,0,1,1,2,1,0,0,0,0,1,1,1,1,0,1,0,0,0,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,0,1,1,1,1,1,0,0,1,1,2,1,0,0,0,1,1,0,0,0,1,1,0,0,1,0,1,0,0,0,
+1,2,1,1,1,1,1,1,1,1,0,1,0,1,1,1,1,1,1,0,1,1,1,0,0,0,0,0,0,1,0,0,
+2,0,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,1,1,2,0,0,1,0,0,1,0,1,0,0,0,
+0,1,1,1,1,1,1,1,1,2,0,1,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,1,0,0,2,1,0,1,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,
+0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,0,1,1,0,0,1,1,1,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+0,1,1,1,1,1,0,0,1,1,0,1,0,1,0,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+0,0,0,1,0,0,0,0,0,0,1,1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,1,1,0,1,0,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+2,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,0,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,0,0,0,1,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,1,1,1,1,1,0,1,1,0,1,0,1,0,0,1,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,
+)
+
+Latin2HungarianModel = {
+  'charToOrderMap': Latin2_HungarianCharToOrderMap,
+  'precedenceMatrix': HungarianLangModel,
+  'mTypicalPositiveRatio': 0.947368,
+  'keepEnglishLetter': True,
+  'charsetName': "ISO-8859-2"
+}
+
+Win1250HungarianModel = {
+  'charToOrderMap': win1250HungarianCharToOrderMap,
+  'precedenceMatrix': HungarianLangModel,
+  'mTypicalPositiveRatio': 0.947368,
+  'keepEnglishLetter': True,
+  'charsetName': "windows-1250"
+}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py
new file mode 100644
index 0000000..0508b1b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py
@@ -0,0 +1,200 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# The following result for thai was collected from a limited sample (1M).
+
+# Character Mapping Table:
+TIS620CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,182,106,107,100,183,184,185,101, 94,186,187,108,109,110,111,  # 40
+188,189,190, 89, 95,112,113,191,192,193,194,253,253,253,253,253,  # 50
+253, 64, 72, 73,114, 74,115,116,102, 81,201,117, 90,103, 78, 82,  # 60
+ 96,202, 91, 79, 84,104,105, 97, 98, 92,203,253,253,253,253,253,  # 70
+209,210,211,212,213, 88,214,215,216,217,218,219,220,118,221,222,
+223,224, 99, 85, 83,225,226,227,228,229,230,231,232,233,234,235,
+236,  5, 30,237, 24,238, 75,  8, 26, 52, 34, 51,119, 47, 58, 57,
+ 49, 53, 55, 43, 20, 19, 44, 14, 48,  3, 17, 25, 39, 62, 31, 54,
+ 45,  9, 16,  2, 61, 15,239, 12, 42, 46, 18, 21, 76,  4, 66, 63,
+ 22, 10,  1, 36, 23, 13, 40, 27, 32, 35, 86,240,241,242,243,244,
+ 11, 28, 41, 29, 33,245, 50, 37,  6,  7, 67, 77, 38, 93,246,247,
+ 68, 56, 59, 65, 69, 60, 70, 80, 71, 87,248,249,250,251,252,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 92.6386%
+# first 1024 sequences:7.3177%
+# rest  sequences:     1.0230%
+# negative sequences:  0.0436%
+ThaiLangModel = (
+0,1,3,3,3,3,0,0,3,3,0,3,3,0,3,3,3,3,3,3,3,3,0,0,3,3,3,0,3,3,3,3,
+0,3,3,0,0,0,1,3,0,3,3,2,3,3,0,1,2,3,3,3,3,0,2,0,2,0,0,3,2,1,2,2,
+3,0,3,3,2,3,0,0,3,3,0,3,3,0,3,3,3,3,3,3,3,3,3,0,3,2,3,0,2,2,2,3,
+0,2,3,0,0,0,0,1,0,1,2,3,1,1,3,2,2,0,1,1,0,0,1,0,0,0,0,0,0,0,1,1,
+3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,2,2,2,2,2,2,2,3,3,2,3,2,3,3,2,2,2,
+3,1,2,3,0,3,3,2,2,1,2,3,3,1,2,0,1,3,0,1,0,0,1,0,0,0,0,0,0,0,1,1,
+3,3,2,2,3,3,3,3,1,2,3,3,3,3,3,2,2,2,2,3,3,2,2,3,3,2,2,3,2,3,2,2,
+3,3,1,2,3,1,2,2,3,3,1,0,2,1,0,0,3,1,2,1,0,0,1,0,0,0,0,0,0,1,0,1,
+3,3,3,3,3,3,2,2,3,3,3,3,2,3,2,2,3,3,2,2,3,2,2,2,2,1,1,3,1,2,1,1,
+3,2,1,0,2,1,0,1,0,1,1,0,1,1,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,3,2,3,2,3,3,2,2,3,2,3,3,2,3,1,1,2,3,2,2,2,3,2,2,2,2,2,1,2,1,
+2,2,1,1,3,3,2,1,0,1,2,2,0,1,3,0,0,0,1,1,0,0,0,0,0,2,3,0,0,2,1,1,
+3,3,2,3,3,2,0,0,3,3,0,3,3,0,2,2,3,1,2,2,1,1,1,0,2,2,2,0,2,2,1,1,
+0,2,1,0,2,0,0,2,0,1,0,0,1,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,2,3,3,2,0,0,3,3,0,2,3,0,2,1,2,2,2,2,1,2,0,0,2,2,2,0,2,2,1,1,
+0,2,1,0,2,0,0,2,0,1,1,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,2,3,2,3,2,0,2,2,1,3,2,1,3,2,1,2,3,2,2,3,0,2,3,2,2,1,2,2,2,2,
+1,2,2,0,0,0,0,2,0,1,2,0,1,1,1,0,1,0,3,1,1,0,0,0,0,0,0,0,0,0,1,0,
+3,3,2,3,3,2,3,2,2,2,3,2,2,3,2,2,1,2,3,2,2,3,1,3,2,2,2,3,2,2,2,3,
+3,2,1,3,0,1,1,1,0,2,1,1,1,1,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,2,0,0,
+1,0,0,3,0,3,3,3,3,3,0,0,3,0,2,2,3,3,3,3,3,0,0,0,1,1,3,0,0,0,0,2,
+0,0,1,0,0,0,0,0,0,0,2,3,0,0,0,3,0,2,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+2,0,3,3,3,3,0,0,2,3,0,0,3,0,3,3,2,3,3,3,3,3,0,0,3,3,3,0,0,0,3,3,
+0,0,3,0,0,0,0,2,0,0,2,1,1,3,0,0,1,0,0,2,3,0,1,0,0,0,0,0,0,0,1,0,
+3,3,3,3,2,3,3,3,3,3,3,3,1,2,1,3,3,2,2,1,2,2,2,3,1,1,2,0,2,1,2,1,
+2,2,1,0,0,0,1,1,0,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,
+3,0,2,1,2,3,3,3,0,2,0,2,2,0,2,1,3,2,2,1,2,1,0,0,2,2,1,0,2,1,2,2,
+0,1,1,0,0,0,0,1,0,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,1,3,3,1,1,3,0,2,3,1,1,3,2,1,1,2,0,2,2,3,2,1,1,1,1,1,2,
+3,0,0,1,3,1,2,1,2,0,3,0,0,0,1,0,3,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
+3,3,1,1,3,2,3,3,3,1,3,2,1,3,2,1,3,2,2,2,2,1,3,3,1,2,1,3,1,2,3,0,
+2,1,1,3,2,2,2,1,2,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,
+3,3,2,3,2,3,3,2,3,2,3,2,3,3,2,1,0,3,2,2,2,1,2,2,2,1,2,2,1,2,1,1,
+2,2,2,3,0,1,3,1,1,1,1,0,1,1,0,2,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,3,2,2,1,1,3,2,3,2,3,2,0,3,2,2,1,2,0,2,2,2,1,2,2,2,2,1,
+3,2,1,2,2,1,0,2,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,2,3,1,2,3,3,2,2,3,0,1,1,2,0,3,3,2,2,3,0,1,1,3,0,0,0,0,
+3,1,0,3,3,0,2,0,2,1,0,0,3,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,2,3,2,3,3,0,1,3,1,1,2,1,2,1,1,3,1,1,0,2,3,1,1,1,1,1,1,1,1,
+3,1,1,2,2,2,2,1,1,1,0,0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,2,2,1,1,2,1,3,3,2,3,2,2,3,2,2,3,1,2,2,1,2,0,3,2,1,2,2,2,2,2,1,
+3,2,1,2,2,2,1,1,1,1,0,0,1,1,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+3,3,3,3,2,1,0,1,1,1,3,1,2,2,2,2,2,2,1,1,1,1,0,3,1,0,1,3,1,1,1,1,
+1,1,0,2,0,1,3,1,1,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,1,
+3,0,2,2,1,3,3,2,3,3,0,1,1,0,2,2,1,2,1,3,3,1,0,0,3,2,0,0,0,0,2,1,
+0,1,0,0,0,0,1,2,0,1,1,3,1,1,2,2,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
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+3,3,1,3,2,1,3,3,1,2,2,0,1,2,1,0,1,2,0,0,0,0,0,3,0,0,0,3,0,0,0,0,
+3,0,0,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,1,2,0,3,3,3,2,2,0,1,1,0,1,3,0,0,0,2,2,0,0,0,0,3,1,0,1,0,0,0,
+0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,2,3,1,2,0,0,2,1,0,3,1,0,1,2,0,1,1,1,1,3,0,0,3,1,1,0,2,2,1,1,
+0,2,0,0,0,0,0,1,0,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,3,1,2,0,0,2,2,0,1,2,0,1,0,1,3,1,2,1,0,0,0,2,0,3,0,0,0,1,0,
+0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,1,1,2,2,0,0,0,2,0,2,1,0,1,1,0,1,1,1,2,1,0,0,1,1,1,0,2,1,1,1,
+0,1,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,1,
+0,0,0,2,0,1,3,1,1,1,1,0,0,0,0,3,2,0,1,0,0,0,1,2,0,0,0,1,0,0,0,0,
+0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,3,3,3,3,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,2,3,2,2,0,0,0,1,0,0,0,0,2,3,2,1,2,2,3,0,0,0,2,3,1,0,0,0,1,1,
+0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,
+3,3,2,2,0,1,0,0,0,0,2,0,2,0,1,0,0,0,1,1,0,0,0,2,1,0,1,0,1,1,0,0,
+0,1,0,2,0,0,1,0,3,0,1,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,1,0,0,1,0,0,0,0,0,1,1,2,0,0,0,0,1,0,0,1,3,1,0,0,0,0,1,1,0,0,
+0,1,0,0,0,0,3,0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,
+3,3,1,1,1,1,2,3,0,0,2,1,1,1,1,1,0,2,1,1,0,0,0,2,1,0,1,2,1,1,0,1,
+2,1,0,3,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,3,1,0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,
+0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,0,0,0,0,0,0,1,2,1,0,1,1,0,2,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,2,0,0,0,1,3,0,1,0,0,0,2,0,0,0,0,0,0,0,1,2,0,0,0,0,0,
+3,3,0,0,1,1,2,0,0,1,2,1,0,1,1,1,0,1,1,0,0,2,1,1,0,1,0,0,1,1,1,0,
+0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,1,0,0,0,0,1,0,0,0,0,3,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,0,0,1,1,0,0,0,2,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,0,1,2,0,1,2,0,0,1,1,0,2,0,1,0,0,1,0,0,0,0,1,0,0,0,2,0,0,0,0,
+1,0,0,1,0,1,1,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,0,0,0,0,0,0,0,1,1,0,1,1,0,2,1,3,0,0,0,0,1,1,0,0,0,0,0,0,0,3,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,1,0,1,0,0,2,0,0,2,0,0,1,1,2,0,0,1,1,0,0,0,1,0,0,0,1,1,0,0,0,
+1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,1,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,2,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,3,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,
+1,0,0,0,0,0,0,0,0,1,0,0,0,0,2,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,1,0,0,2,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+)
+
+TIS620ThaiModel = {
+  'charToOrderMap': TIS620CharToOrderMap,
+  'precedenceMatrix': ThaiLangModel,
+  'mTypicalPositiveRatio': 0.926386,
+  'keepEnglishLetter': False,
+  'charsetName': "TIS-620"
+}
+
+# flake8: noqa
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py
new file mode 100644
index 0000000..eef3573
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py
@@ -0,0 +1,139 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .constants import eNotMe
+from .compat import wrap_ord
+
+FREQ_CAT_NUM = 4
+
+UDF = 0  # undefined
+OTH = 1  # other
+ASC = 2  # ascii capital letter
+ASS = 3  # ascii small letter
+ACV = 4  # accent capital vowel
+ACO = 5  # accent capital other
+ASV = 6  # accent small vowel
+ASO = 7  # accent small other
+CLASS_NUM = 8  # total classes
+
+Latin1_CharToClass = (
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 00 - 07
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 08 - 0F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 10 - 17
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 18 - 1F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 20 - 27
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 28 - 2F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 30 - 37
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 38 - 3F
+    OTH, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 40 - 47
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 48 - 4F
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 50 - 57
+    ASC, ASC, ASC, OTH, OTH, OTH, OTH, OTH,   # 58 - 5F
+    OTH, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 60 - 67
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 68 - 6F
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 70 - 77
+    ASS, ASS, ASS, OTH, OTH, OTH, OTH, OTH,   # 78 - 7F
+    OTH, UDF, OTH, ASO, OTH, OTH, OTH, OTH,   # 80 - 87
+    OTH, OTH, ACO, OTH, ACO, UDF, ACO, UDF,   # 88 - 8F
+    UDF, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 90 - 97
+    OTH, OTH, ASO, OTH, ASO, UDF, ASO, ACO,   # 98 - 9F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A0 - A7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A8 - AF
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B0 - B7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B8 - BF
+    ACV, ACV, ACV, ACV, ACV, ACV, ACO, ACO,   # C0 - C7
+    ACV, ACV, ACV, ACV, ACV, ACV, ACV, ACV,   # C8 - CF
+    ACO, ACO, ACV, ACV, ACV, ACV, ACV, OTH,   # D0 - D7
+    ACV, ACV, ACV, ACV, ACV, ACO, ACO, ACO,   # D8 - DF
+    ASV, ASV, ASV, ASV, ASV, ASV, ASO, ASO,   # E0 - E7
+    ASV, ASV, ASV, ASV, ASV, ASV, ASV, ASV,   # E8 - EF
+    ASO, ASO, ASV, ASV, ASV, ASV, ASV, OTH,   # F0 - F7
+    ASV, ASV, ASV, ASV, ASV, ASO, ASO, ASO,   # F8 - FF
+)
+
+# 0 : illegal
+# 1 : very unlikely
+# 2 : normal
+# 3 : very likely
+Latin1ClassModel = (
+    # UDF OTH ASC ASS ACV ACO ASV ASO
+    0,  0,  0,  0,  0,  0,  0,  0,  # UDF
+    0,  3,  3,  3,  3,  3,  3,  3,  # OTH
+    0,  3,  3,  3,  3,  3,  3,  3,  # ASC
+    0,  3,  3,  3,  1,  1,  3,  3,  # ASS
+    0,  3,  3,  3,  1,  2,  1,  2,  # ACV
+    0,  3,  3,  3,  3,  3,  3,  3,  # ACO
+    0,  3,  1,  3,  1,  1,  1,  3,  # ASV
+    0,  3,  1,  3,  1,  1,  3,  3,  # ASO
+)
+
+
+class Latin1Prober(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self.reset()
+
+    def reset(self):
+        self._mLastCharClass = OTH
+        self._mFreqCounter = [0] * FREQ_CAT_NUM
+        CharSetProber.reset(self)
+
+    def get_charset_name(self):
+        return "windows-1252"
+
+    def feed(self, aBuf):
+        aBuf = self.filter_with_english_letters(aBuf)
+        for c in aBuf:
+            charClass = Latin1_CharToClass[wrap_ord(c)]
+            freq = Latin1ClassModel[(self._mLastCharClass * CLASS_NUM)
+                                    + charClass]
+            if freq == 0:
+                self._mState = eNotMe
+                break
+            self._mFreqCounter[freq] += 1
+            self._mLastCharClass = charClass
+
+        return self.get_state()
+
+    def get_confidence(self):
+        if self.get_state() == eNotMe:
+            return 0.01
+
+        total = sum(self._mFreqCounter)
+        if total < 0.01:
+            confidence = 0.0
+        else:
+            confidence = ((self._mFreqCounter[3] - self._mFreqCounter[1] * 20.0)
+                          / total)
+        if confidence < 0.0:
+            confidence = 0.0
+        # lower the confidence of latin1 so that other more accurate
+        # detector can take priority.
+        confidence = confidence * 0.73
+        return confidence
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py
new file mode 100644
index 0000000..bb42f2f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py
@@ -0,0 +1,86 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .charsetprober import CharSetProber
+
+
+class MultiByteCharSetProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mDistributionAnalyzer = None
+        self._mCodingSM = None
+        self._mLastChar = [0, 0]
+
+    def reset(self):
+        CharSetProber.reset(self)
+        if self._mCodingSM:
+            self._mCodingSM.reset()
+        if self._mDistributionAnalyzer:
+            self._mDistributionAnalyzer.reset()
+        self._mLastChar = [0, 0]
+
+    def get_charset_name(self):
+        pass
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mDistributionAnalyzer.got_enough_data() and
+                    (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        return self._mDistributionAnalyzer.get_confidence()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py
new file mode 100644
index 0000000..03c9dcf
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py
@@ -0,0 +1,54 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .utf8prober import UTF8Prober
+from .sjisprober import SJISProber
+from .eucjpprober import EUCJPProber
+from .gb2312prober import GB2312Prober
+from .euckrprober import EUCKRProber
+from .cp949prober import CP949Prober
+from .big5prober import Big5Prober
+from .euctwprober import EUCTWProber
+
+
+class MBCSGroupProber(CharSetGroupProber):
+    def __init__(self):
+        CharSetGroupProber.__init__(self)
+        self._mProbers = [
+            UTF8Prober(),
+            SJISProber(),
+            EUCJPProber(),
+            GB2312Prober(),
+            EUCKRProber(),
+            CP949Prober(),
+            Big5Prober(),
+            EUCTWProber()
+        ]
+        self.reset()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py
new file mode 100644
index 0000000..efe678c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py
@@ -0,0 +1,572 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart, eError, eItsMe
+
+# BIG5
+
+BIG5_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07    #allow 0x00 as legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    4,4,4,4,4,4,4,4,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    4,3,3,3,3,3,3,3,  # a0 - a7
+    3,3,3,3,3,3,3,3,  # a8 - af
+    3,3,3,3,3,3,3,3,  # b0 - b7
+    3,3,3,3,3,3,3,3,  # b8 - bf
+    3,3,3,3,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0  # f8 - ff
+)
+
+BIG5_st = (
+    eError,eStart,eStart,     3,eError,eError,eError,eError,#00-07
+    eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,#08-0f
+    eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart#10-17
+)
+
+Big5CharLenTable = (0, 1, 1, 2, 0)
+
+Big5SMModel = {'classTable': BIG5_cls,
+               'classFactor': 5,
+               'stateTable': BIG5_st,
+               'charLenTable': Big5CharLenTable,
+               'name': 'Big5'}
+
+# CP949
+
+CP949_cls  = (
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,0,0,  # 00 - 0f
+    1,1,1,1,1,1,1,1, 1,1,1,0,1,1,1,1,  # 10 - 1f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 20 - 2f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 30 - 3f
+    1,4,4,4,4,4,4,4, 4,4,4,4,4,4,4,4,  # 40 - 4f
+    4,4,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 50 - 5f
+    1,5,5,5,5,5,5,5, 5,5,5,5,5,5,5,5,  # 60 - 6f
+    5,5,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 70 - 7f
+    0,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 80 - 8f
+    6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 90 - 9f
+    6,7,7,7,7,7,7,7, 7,7,7,7,7,8,8,8,  # a0 - af
+    7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,  # b0 - bf
+    7,7,7,7,7,7,9,2, 2,3,2,2,2,2,2,2,  # c0 - cf
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # d0 - df
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # e0 - ef
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,0,  # f0 - ff
+)
+
+CP949_st = (
+#cls=    0      1      2      3      4      5      6      7      8      9  # previous state =
+    eError,eStart,     3,eError,eStart,eStart,     4,     5,eError,     6, # eStart
+    eError,eError,eError,eError,eError,eError,eError,eError,eError,eError, # eError
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe, # eItsMe
+    eError,eError,eStart,eStart,eError,eError,eError,eStart,eStart,eStart, # 3
+    eError,eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 4
+    eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 5
+    eError,eStart,eStart,eStart,eStart,eError,eError,eStart,eStart,eStart, # 6
+)
+
+CP949CharLenTable = (0, 1, 2, 0, 1, 1, 2, 2, 0, 2)
+
+CP949SMModel = {'classTable': CP949_cls,
+                'classFactor': 10,
+                'stateTable': CP949_st,
+                'charLenTable': CP949CharLenTable,
+                'name': 'CP949'}
+
+# EUC-JP
+
+EUCJP_cls = (
+    4,4,4,4,4,4,4,4,  # 00 - 07
+    4,4,4,4,4,4,5,5,  # 08 - 0f
+    4,4,4,4,4,4,4,4,  # 10 - 17
+    4,4,4,5,4,4,4,4,  # 18 - 1f
+    4,4,4,4,4,4,4,4,  # 20 - 27
+    4,4,4,4,4,4,4,4,  # 28 - 2f
+    4,4,4,4,4,4,4,4,  # 30 - 37
+    4,4,4,4,4,4,4,4,  # 38 - 3f
+    4,4,4,4,4,4,4,4,  # 40 - 47
+    4,4,4,4,4,4,4,4,  # 48 - 4f
+    4,4,4,4,4,4,4,4,  # 50 - 57
+    4,4,4,4,4,4,4,4,  # 58 - 5f
+    4,4,4,4,4,4,4,4,  # 60 - 67
+    4,4,4,4,4,4,4,4,  # 68 - 6f
+    4,4,4,4,4,4,4,4,  # 70 - 77
+    4,4,4,4,4,4,4,4,  # 78 - 7f
+    5,5,5,5,5,5,5,5,  # 80 - 87
+    5,5,5,5,5,5,1,3,  # 88 - 8f
+    5,5,5,5,5,5,5,5,  # 90 - 97
+    5,5,5,5,5,5,5,5,  # 98 - 9f
+    5,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,0,5  # f8 - ff
+)
+
+EUCJP_st = (
+          3,     4,     3,     5,eStart,eError,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,eStart,eError,eStart,eError,eError,eError,#10-17
+     eError,eError,eStart,eError,eError,eError,     3,eError,#18-1f
+          3,eError,eError,eError,eStart,eStart,eStart,eStart#20-27
+)
+
+EUCJPCharLenTable = (2, 2, 2, 3, 1, 0)
+
+EUCJPSMModel = {'classTable': EUCJP_cls,
+                'classFactor': 6,
+                'stateTable': EUCJP_st,
+                'charLenTable': EUCJPCharLenTable,
+                'name': 'EUC-JP'}
+
+# EUC-KR
+
+EUCKR_cls  = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,3,3,3,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,3,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    2,2,2,2,2,2,2,2,  # e0 - e7
+    2,2,2,2,2,2,2,2,  # e8 - ef
+    2,2,2,2,2,2,2,2,  # f0 - f7
+    2,2,2,2,2,2,2,0   # f8 - ff
+)
+
+EUCKR_st = (
+    eError,eStart,     3,eError,eError,eError,eError,eError,#00-07
+    eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,eStart,eStart #08-0f
+)
+
+EUCKRCharLenTable = (0, 1, 2, 0)
+
+EUCKRSMModel = {'classTable': EUCKR_cls,
+                'classFactor': 4,
+                'stateTable': EUCKR_st,
+                'charLenTable': EUCKRCharLenTable,
+                'name': 'EUC-KR'}
+
+# EUC-TW
+
+EUCTW_cls = (
+    2,2,2,2,2,2,2,2,  # 00 - 07
+    2,2,2,2,2,2,0,0,  # 08 - 0f
+    2,2,2,2,2,2,2,2,  # 10 - 17
+    2,2,2,0,2,2,2,2,  # 18 - 1f
+    2,2,2,2,2,2,2,2,  # 20 - 27
+    2,2,2,2,2,2,2,2,  # 28 - 2f
+    2,2,2,2,2,2,2,2,  # 30 - 37
+    2,2,2,2,2,2,2,2,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,2,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,6,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,3,4,4,4,4,4,4,  # a0 - a7
+    5,5,1,1,1,1,1,1,  # a8 - af
+    1,1,1,1,1,1,1,1,  # b0 - b7
+    1,1,1,1,1,1,1,1,  # b8 - bf
+    1,1,3,1,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0   # f8 - ff
+)
+
+EUCTW_st = (
+    eError,eError,eStart,     3,     3,     3,     4,eError,#00-07
+    eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eStart,eError,#10-17
+    eStart,eStart,eStart,eError,eError,eError,eError,eError,#18-1f
+         5,eError,eError,eError,eStart,eError,eStart,eStart,#20-27
+    eStart,eError,eStart,eStart,eStart,eStart,eStart,eStart #28-2f
+)
+
+EUCTWCharLenTable = (0, 0, 1, 2, 2, 2, 3)
+
+EUCTWSMModel = {'classTable': EUCTW_cls,
+                'classFactor': 7,
+                'stateTable': EUCTW_st,
+                'charLenTable': EUCTWCharLenTable,
+                'name': 'x-euc-tw'}
+
+# GB2312
+
+GB2312_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    3,3,3,3,3,3,3,3,  # 30 - 37
+    3,3,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,4,  # 78 - 7f
+    5,6,6,6,6,6,6,6,  # 80 - 87
+    6,6,6,6,6,6,6,6,  # 88 - 8f
+    6,6,6,6,6,6,6,6,  # 90 - 97
+    6,6,6,6,6,6,6,6,  # 98 - 9f
+    6,6,6,6,6,6,6,6,  # a0 - a7
+    6,6,6,6,6,6,6,6,  # a8 - af
+    6,6,6,6,6,6,6,6,  # b0 - b7
+    6,6,6,6,6,6,6,6,  # b8 - bf
+    6,6,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    6,6,6,6,6,6,6,6,  # e0 - e7
+    6,6,6,6,6,6,6,6,  # e8 - ef
+    6,6,6,6,6,6,6,6,  # f0 - f7
+    6,6,6,6,6,6,6,0   # f8 - ff
+)
+
+GB2312_st = (
+    eError,eStart,eStart,eStart,eStart,eStart,     3,eError,#00-07
+    eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,eStart,#10-17
+         4,eError,eStart,eStart,eError,eError,eError,eError,#18-1f
+    eError,eError,     5,eError,eError,eError,eItsMe,eError,#20-27
+    eError,eError,eStart,eStart,eStart,eStart,eStart,eStart #28-2f
+)
+
+# To be accurate, the length of class 6 can be either 2 or 4.
+# But it is not necessary to discriminate between the two since
+# it is used for frequency analysis only, and we are validing
+# each code range there as well. So it is safe to set it to be
+# 2 here.
+GB2312CharLenTable = (0, 1, 1, 1, 1, 1, 2)
+
+GB2312SMModel = {'classTable': GB2312_cls,
+                  'classFactor': 7,
+                  'stateTable': GB2312_st,
+                  'charLenTable': GB2312CharLenTable,
+                  'name': 'GB2312'}
+
+# Shift_JIS
+
+SJIS_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    3,3,3,3,3,2,2,3,  # 80 - 87
+    3,3,3,3,3,3,3,3,  # 88 - 8f
+    3,3,3,3,3,3,3,3,  # 90 - 97
+    3,3,3,3,3,3,3,3,  # 98 - 9f
+    #0xa0 is illegal in sjis encoding, but some pages does
+    #contain such byte. We need to be more error forgiven.
+    2,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,4,4,4,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,0,0,0)  # f8 - ff
+
+
+SJIS_st = (
+    eError,eStart,eStart,     3,eError,eError,eError,eError,#00-07
+    eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eError,eError,eStart,eStart,eStart,eStart #10-17
+)
+
+SJISCharLenTable = (0, 1, 1, 2, 0, 0)
+
+SJISSMModel = {'classTable': SJIS_cls,
+               'classFactor': 6,
+               'stateTable': SJIS_st,
+               'charLenTable': SJISCharLenTable,
+               'name': 'Shift_JIS'}
+
+# UCS2-BE
+
+UCS2BE_cls = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2BE_st  = (
+          5,     7,     7,eError,     4,     3,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,     6,     6,     6,     6,eError,eError,#10-17
+          6,     6,     6,     6,     6,eItsMe,     6,     6,#18-1f
+          6,     6,     6,     6,     5,     7,     7,eError,#20-27
+          5,     8,     6,     6,eError,     6,     6,     6,#28-2f
+          6,     6,     6,     6,eError,eError,eStart,eStart #30-37
+)
+
+UCS2BECharLenTable = (2, 2, 2, 0, 2, 2)
+
+UCS2BESMModel = {'classTable': UCS2BE_cls,
+                 'classFactor': 6,
+                 'stateTable': UCS2BE_st,
+                 'charLenTable': UCS2BECharLenTable,
+                 'name': 'UTF-16BE'}
+
+# UCS2-LE
+
+UCS2LE_cls = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2LE_st = (
+          6,     6,     7,     6,     4,     3,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,     5,     5,     5,eError,eItsMe,eError,#10-17
+          5,     5,     5,eError,     5,eError,     6,     6,#18-1f
+          7,     6,     8,     8,     5,     5,     5,eError,#20-27
+          5,     5,     5,eError,eError,eError,     5,     5,#28-2f
+          5,     5,     5,eError,     5,eError,eStart,eStart #30-37
+)
+
+UCS2LECharLenTable = (2, 2, 2, 2, 2, 2)
+
+UCS2LESMModel = {'classTable': UCS2LE_cls,
+                 'classFactor': 6,
+                 'stateTable': UCS2LE_st,
+                 'charLenTable': UCS2LECharLenTable,
+                 'name': 'UTF-16LE'}
+
+# UTF-8
+
+UTF8_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07  #allow 0x00 as a legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    2,2,2,2,3,3,3,3,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    5,5,5,5,5,5,5,5,  # a0 - a7
+    5,5,5,5,5,5,5,5,  # a8 - af
+    5,5,5,5,5,5,5,5,  # b0 - b7
+    5,5,5,5,5,5,5,5,  # b8 - bf
+    0,0,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    7,8,8,8,8,8,8,8,  # e0 - e7
+    8,8,8,8,8,9,8,8,  # e8 - ef
+    10,11,11,11,11,11,11,11,  # f0 - f7
+    12,13,13,13,14,15,0,0    # f8 - ff
+)
+
+UTF8_st = (
+    eError,eStart,eError,eError,eError,eError,     12,   10,#00-07
+         9,     11,     8,     7,     6,     5,     4,    3,#08-0f
+    eError,eError,eError,eError,eError,eError,eError,eError,#10-17
+    eError,eError,eError,eError,eError,eError,eError,eError,#18-1f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,#20-27
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,#28-2f
+    eError,eError,     5,     5,     5,     5,eError,eError,#30-37
+    eError,eError,eError,eError,eError,eError,eError,eError,#38-3f
+    eError,eError,eError,     5,     5,     5,eError,eError,#40-47
+    eError,eError,eError,eError,eError,eError,eError,eError,#48-4f
+    eError,eError,     7,     7,     7,     7,eError,eError,#50-57
+    eError,eError,eError,eError,eError,eError,eError,eError,#58-5f
+    eError,eError,eError,eError,     7,     7,eError,eError,#60-67
+    eError,eError,eError,eError,eError,eError,eError,eError,#68-6f
+    eError,eError,     9,     9,     9,     9,eError,eError,#70-77
+    eError,eError,eError,eError,eError,eError,eError,eError,#78-7f
+    eError,eError,eError,eError,eError,     9,eError,eError,#80-87
+    eError,eError,eError,eError,eError,eError,eError,eError,#88-8f
+    eError,eError,    12,    12,    12,    12,eError,eError,#90-97
+    eError,eError,eError,eError,eError,eError,eError,eError,#98-9f
+    eError,eError,eError,eError,eError,    12,eError,eError,#a0-a7
+    eError,eError,eError,eError,eError,eError,eError,eError,#a8-af
+    eError,eError,    12,    12,    12,eError,eError,eError,#b0-b7
+    eError,eError,eError,eError,eError,eError,eError,eError,#b8-bf
+    eError,eError,eStart,eStart,eStart,eStart,eError,eError,#c0-c7
+    eError,eError,eError,eError,eError,eError,eError,eError #c8-cf
+)
+
+UTF8CharLenTable = (0, 1, 0, 0, 0, 0, 2, 3, 3, 3, 4, 4, 5, 5, 6, 6)
+
+UTF8SMModel = {'classTable': UTF8_cls,
+               'classFactor': 16,
+               'stateTable': UTF8_st,
+               'charLenTable': UTF8CharLenTable,
+               'name': 'UTF-8'}
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py
new file mode 100644
index 0000000..37291bd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py
@@ -0,0 +1,120 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .charsetprober import CharSetProber
+from .compat import wrap_ord
+
+SAMPLE_SIZE = 64
+SB_ENOUGH_REL_THRESHOLD = 1024
+POSITIVE_SHORTCUT_THRESHOLD = 0.95
+NEGATIVE_SHORTCUT_THRESHOLD = 0.05
+SYMBOL_CAT_ORDER = 250
+NUMBER_OF_SEQ_CAT = 4
+POSITIVE_CAT = NUMBER_OF_SEQ_CAT - 1
+#NEGATIVE_CAT = 0
+
+
+class SingleByteCharSetProber(CharSetProber):
+    def __init__(self, model, reversed=False, nameProber=None):
+        CharSetProber.__init__(self)
+        self._mModel = model
+        # TRUE if we need to reverse every pair in the model lookup
+        self._mReversed = reversed
+        # Optional auxiliary prober for name decision
+        self._mNameProber = nameProber
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        # char order of last character
+        self._mLastOrder = 255
+        self._mSeqCounters = [0] * NUMBER_OF_SEQ_CAT
+        self._mTotalSeqs = 0
+        self._mTotalChar = 0
+        # characters that fall in our sampling range
+        self._mFreqChar = 0
+
+    def get_charset_name(self):
+        if self._mNameProber:
+            return self._mNameProber.get_charset_name()
+        else:
+            return self._mModel['charsetName']
+
+    def feed(self, aBuf):
+        if not self._mModel['keepEnglishLetter']:
+            aBuf = self.filter_without_english_letters(aBuf)
+        aLen = len(aBuf)
+        if not aLen:
+            return self.get_state()
+        for c in aBuf:
+            order = self._mModel['charToOrderMap'][wrap_ord(c)]
+            if order < SYMBOL_CAT_ORDER:
+                self._mTotalChar += 1
+            if order < SAMPLE_SIZE:
+                self._mFreqChar += 1
+                if self._mLastOrder < SAMPLE_SIZE:
+                    self._mTotalSeqs += 1
+                    if not self._mReversed:
+                        i = (self._mLastOrder * SAMPLE_SIZE) + order
+                        model = self._mModel['precedenceMatrix'][i]
+                    else:  # reverse the order of the letters in the lookup
+                        i = (order * SAMPLE_SIZE) + self._mLastOrder
+                        model = self._mModel['precedenceMatrix'][i]
+                    self._mSeqCounters[model] += 1
+            self._mLastOrder = order
+
+        if self.get_state() == constants.eDetecting:
+            if self._mTotalSeqs > SB_ENOUGH_REL_THRESHOLD:
+                cf = self.get_confidence()
+                if cf > POSITIVE_SHORTCUT_THRESHOLD:
+                    if constants._debug:
+                        sys.stderr.write('%s confidence = %s, we have a'
+                                         'winner\n' %
+                                         (self._mModel['charsetName'], cf))
+                    self._mState = constants.eFoundIt
+                elif cf < NEGATIVE_SHORTCUT_THRESHOLD:
+                    if constants._debug:
+                        sys.stderr.write('%s confidence = %s, below negative'
+                                         'shortcut threshhold %s\n' %
+                                         (self._mModel['charsetName'], cf,
+                                          NEGATIVE_SHORTCUT_THRESHOLD))
+                    self._mState = constants.eNotMe
+
+        return self.get_state()
+
+    def get_confidence(self):
+        r = 0.01
+        if self._mTotalSeqs > 0:
+            r = ((1.0 * self._mSeqCounters[POSITIVE_CAT]) / self._mTotalSeqs
+                 / self._mModel['mTypicalPositiveRatio'])
+            r = r * self._mFreqChar / self._mTotalChar
+            if r >= 1.0:
+                r = 0.99
+        return r
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py
new file mode 100644
index 0000000..1b6196c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py
@@ -0,0 +1,69 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .sbcharsetprober import SingleByteCharSetProber
+from .langcyrillicmodel import (Win1251CyrillicModel, Koi8rModel,
+                                Latin5CyrillicModel, MacCyrillicModel,
+                                Ibm866Model, Ibm855Model)
+from .langgreekmodel import Latin7GreekModel, Win1253GreekModel
+from .langbulgarianmodel import Latin5BulgarianModel, Win1251BulgarianModel
+from .langhungarianmodel import Latin2HungarianModel, Win1250HungarianModel
+from .langthaimodel import TIS620ThaiModel
+from .langhebrewmodel import Win1255HebrewModel
+from .hebrewprober import HebrewProber
+
+
+class SBCSGroupProber(CharSetGroupProber):
+    def __init__(self):
+        CharSetGroupProber.__init__(self)
+        self._mProbers = [
+            SingleByteCharSetProber(Win1251CyrillicModel),
+            SingleByteCharSetProber(Koi8rModel),
+            SingleByteCharSetProber(Latin5CyrillicModel),
+            SingleByteCharSetProber(MacCyrillicModel),
+            SingleByteCharSetProber(Ibm866Model),
+            SingleByteCharSetProber(Ibm855Model),
+            SingleByteCharSetProber(Latin7GreekModel),
+            SingleByteCharSetProber(Win1253GreekModel),
+            SingleByteCharSetProber(Latin5BulgarianModel),
+            SingleByteCharSetProber(Win1251BulgarianModel),
+            SingleByteCharSetProber(Latin2HungarianModel),
+            SingleByteCharSetProber(Win1250HungarianModel),
+            SingleByteCharSetProber(TIS620ThaiModel),
+        ]
+        hebrewProber = HebrewProber()
+        logicalHebrewProber = SingleByteCharSetProber(Win1255HebrewModel,
+                                                      False, hebrewProber)
+        visualHebrewProber = SingleByteCharSetProber(Win1255HebrewModel, True,
+                                                     hebrewProber)
+        hebrewProber.set_model_probers(logicalHebrewProber, visualHebrewProber)
+        self._mProbers.extend([hebrewProber, logicalHebrewProber,
+                               visualHebrewProber])
+
+        self.reset()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py
new file mode 100644
index 0000000..cd0e9e7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py
@@ -0,0 +1,91 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import SJISDistributionAnalysis
+from .jpcntx import SJISContextAnalysis
+from .mbcssm import SJISSMModel
+from . import constants
+
+
+class SJISProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(SJISSMModel)
+        self._mDistributionAnalyzer = SJISDistributionAnalysis()
+        self._mContextAnalyzer = SJISContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        MultiByteCharSetProber.reset(self)
+        self._mContextAnalyzer.reset()
+
+    def get_charset_name(self):
+        return self._mContextAnalyzer.get_charset_name()
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mContextAnalyzer.feed(self._mLastChar[2 - charLen:],
+                                                charLen)
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mContextAnalyzer.feed(aBuf[i + 1 - charLen:i + 3
+                                                     - charLen], charLen)
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mContextAnalyzer.got_enough_data() and
+               (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        contxtCf = self._mContextAnalyzer.get_confidence()
+        distribCf = self._mDistributionAnalyzer.get_confidence()
+        return max(contxtCf, distribCf)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py
new file mode 100644
index 0000000..476522b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py
@@ -0,0 +1,170 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import sys
+import codecs
+from .latin1prober import Latin1Prober  # windows-1252
+from .mbcsgroupprober import MBCSGroupProber  # multi-byte character sets
+from .sbcsgroupprober import SBCSGroupProber  # single-byte character sets
+from .escprober import EscCharSetProber  # ISO-2122, etc.
+import re
+
+MINIMUM_THRESHOLD = 0.20
+ePureAscii = 0
+eEscAscii = 1
+eHighbyte = 2
+
+
+class UniversalDetector:
+    def __init__(self):
+        self._highBitDetector = re.compile(b'[\x80-\xFF]')
+        self._escDetector = re.compile(b'(\033|~{)')
+        self._mEscCharSetProber = None
+        self._mCharSetProbers = []
+        self.reset()
+
+    def reset(self):
+        self.result = {'encoding': None, 'confidence': 0.0}
+        self.done = False
+        self._mStart = True
+        self._mGotData = False
+        self._mInputState = ePureAscii
+        self._mLastChar = b''
+        if self._mEscCharSetProber:
+            self._mEscCharSetProber.reset()
+        for prober in self._mCharSetProbers:
+            prober.reset()
+
+    def feed(self, aBuf):
+        if self.done:
+            return
+
+        aLen = len(aBuf)
+        if not aLen:
+            return
+
+        if not self._mGotData:
+            # If the data starts with BOM, we know it is UTF
+            if aBuf[:3] == codecs.BOM_UTF8:
+                # EF BB BF  UTF-8 with BOM
+                self.result = {'encoding': "UTF-8-SIG", 'confidence': 1.0}
+            elif aBuf[:4] == codecs.BOM_UTF32_LE:
+                # FF FE 00 00  UTF-32, little-endian BOM
+                self.result = {'encoding': "UTF-32LE", 'confidence': 1.0}
+            elif aBuf[:4] == codecs.BOM_UTF32_BE:
+                # 00 00 FE FF  UTF-32, big-endian BOM
+                self.result = {'encoding': "UTF-32BE", 'confidence': 1.0}
+            elif aBuf[:4] == b'\xFE\xFF\x00\x00':
+                # FE FF 00 00  UCS-4, unusual octet order BOM (3412)
+                self.result = {
+                    'encoding': "X-ISO-10646-UCS-4-3412",
+                    'confidence': 1.0
+                }
+            elif aBuf[:4] == b'\x00\x00\xFF\xFE':
+                # 00 00 FF FE  UCS-4, unusual octet order BOM (2143)
+                self.result = {
+                    'encoding': "X-ISO-10646-UCS-4-2143",
+                    'confidence': 1.0
+                }
+            elif aBuf[:2] == codecs.BOM_LE:
+                # FF FE  UTF-16, little endian BOM
+                self.result = {'encoding': "UTF-16LE", 'confidence': 1.0}
+            elif aBuf[:2] == codecs.BOM_BE:
+                # FE FF  UTF-16, big endian BOM
+                self.result = {'encoding': "UTF-16BE", 'confidence': 1.0}
+
+        self._mGotData = True
+        if self.result['encoding'] and (self.result['confidence'] > 0.0):
+            self.done = True
+            return
+
+        if self._mInputState == ePureAscii:
+            if self._highBitDetector.search(aBuf):
+                self._mInputState = eHighbyte
+            elif ((self._mInputState == ePureAscii) and
+                    self._escDetector.search(self._mLastChar + aBuf)):
+                self._mInputState = eEscAscii
+
+        self._mLastChar = aBuf[-1:]
+
+        if self._mInputState == eEscAscii:
+            if not self._mEscCharSetProber:
+                self._mEscCharSetProber = EscCharSetProber()
+            if self._mEscCharSetProber.feed(aBuf) == constants.eFoundIt:
+                self.result = {'encoding': self._mEscCharSetProber.get_charset_name(),
+                               'confidence': self._mEscCharSetProber.get_confidence()}
+                self.done = True
+        elif self._mInputState == eHighbyte:
+            if not self._mCharSetProbers:
+                self._mCharSetProbers = [MBCSGroupProber(), SBCSGroupProber(),
+                                         Latin1Prober()]
+            for prober in self._mCharSetProbers:
+                if prober.feed(aBuf) == constants.eFoundIt:
+                    self.result = {'encoding': prober.get_charset_name(),
+                                   'confidence': prober.get_confidence()}
+                    self.done = True
+                    break
+
+    def close(self):
+        if self.done:
+            return
+        if not self._mGotData:
+            if constants._debug:
+                sys.stderr.write('no data received!\n')
+            return
+        self.done = True
+
+        if self._mInputState == ePureAscii:
+            self.result = {'encoding': 'ascii', 'confidence': 1.0}
+            return self.result
+
+        if self._mInputState == eHighbyte:
+            proberConfidence = None
+            maxProberConfidence = 0.0
+            maxProber = None
+            for prober in self._mCharSetProbers:
+                if not prober:
+                    continue
+                proberConfidence = prober.get_confidence()
+                if proberConfidence > maxProberConfidence:
+                    maxProberConfidence = proberConfidence
+                    maxProber = prober
+            if maxProber and (maxProberConfidence > MINIMUM_THRESHOLD):
+                self.result = {'encoding': maxProber.get_charset_name(),
+                               'confidence': maxProber.get_confidence()}
+                return self.result
+
+        if constants._debug:
+            sys.stderr.write('no probers hit minimum threshhold\n')
+            for prober in self._mCharSetProbers[0].mProbers:
+                if not prober:
+                    continue
+                sys.stderr.write('%s confidence = %s\n' %
+                                 (prober.get_charset_name(),
+                                  prober.get_confidence()))
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py
new file mode 100644
index 0000000..1c0bb5d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py
@@ -0,0 +1,76 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+from .charsetprober import CharSetProber
+from .codingstatemachine import CodingStateMachine
+from .mbcssm import UTF8SMModel
+
+ONE_CHAR_PROB = 0.5
+
+
+class UTF8Prober(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(UTF8SMModel)
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        self._mCodingSM.reset()
+        self._mNumOfMBChar = 0
+
+    def get_charset_name(self):
+        return "utf-8"
+
+    def feed(self, aBuf):
+        for c in aBuf:
+            codingState = self._mCodingSM.next_state(c)
+            if codingState == constants.eError:
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                if self._mCodingSM.get_current_charlen() >= 2:
+                    self._mNumOfMBChar += 1
+
+        if self.get_state() == constants.eDetecting:
+            if self.get_confidence() > constants.SHORTCUT_THRESHOLD:
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        unlike = 0.99
+        if self._mNumOfMBChar < 6:
+            for i in range(0, self._mNumOfMBChar):
+                unlike = unlike * ONE_CHAR_PROB
+            return 1.0 - unlike
+        else:
+            return unlike
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py
new file mode 100644
index 0000000..c353674
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py
@@ -0,0 +1,96 @@
+"""
+urllib3 - Thread-safe connection pooling and re-using.
+"""
+
+from __future__ import absolute_import
+import warnings
+
+from .connectionpool import (
+    HTTPConnectionPool,
+    HTTPSConnectionPool,
+    connection_from_url
+)
+
+from . import exceptions
+from .filepost import encode_multipart_formdata
+from .poolmanager import PoolManager, ProxyManager, proxy_from_url
+from .response import HTTPResponse
+from .util.request import make_headers
+from .util.url import get_host
+from .util.timeout import Timeout
+from .util.retry import Retry
+
+
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+__author__ = 'Andrey Petrov (andrey.petrov@shazow.net)'
+__license__ = 'MIT'
+__version__ = '1.16'
+
+__all__ = (
+    'HTTPConnectionPool',
+    'HTTPSConnectionPool',
+    'PoolManager',
+    'ProxyManager',
+    'HTTPResponse',
+    'Retry',
+    'Timeout',
+    'add_stderr_logger',
+    'connection_from_url',
+    'disable_warnings',
+    'encode_multipart_formdata',
+    'get_host',
+    'make_headers',
+    'proxy_from_url',
+)
+
+logging.getLogger(__name__).addHandler(NullHandler())
+
+
+def add_stderr_logger(level=logging.DEBUG):
+    """
+    Helper for quickly adding a StreamHandler to the logger. Useful for
+    debugging.
+
+    Returns the handler after adding it.
+    """
+    # This method needs to be in this __init__.py to get the __name__ correct
+    # even if urllib3 is vendored within another package.
+    logger = logging.getLogger(__name__)
+    handler = logging.StreamHandler()
+    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
+    logger.addHandler(handler)
+    logger.setLevel(level)
+    logger.debug('Added a stderr logging handler to logger: %s', __name__)
+    return handler
+
+# ... Clean up.
+del NullHandler
+
+
+# All warning filters *must* be appended unless you're really certain that they
+# shouldn't be: otherwise, it's very hard for users to use most Python
+# mechanisms to silence them.
+# SecurityWarning's always go off by default.
+warnings.simplefilter('always', exceptions.SecurityWarning, append=True)
+# SubjectAltNameWarning's should go off once per host
+warnings.simplefilter('default', exceptions.SubjectAltNameWarning, append=True)
+# InsecurePlatformWarning's don't vary between requests, so we keep it default.
+warnings.simplefilter('default', exceptions.InsecurePlatformWarning,
+                      append=True)
+# SNIMissingWarnings should go off only once.
+warnings.simplefilter('default', exceptions.SNIMissingWarning, append=True)
+
+
+def disable_warnings(category=exceptions.HTTPWarning):
+    """
+    Helper for quickly disabling all urllib3 warnings.
+    """
+    warnings.simplefilter('ignore', category)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py
new file mode 100644
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--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py
@@ -0,0 +1,324 @@
+from __future__ import absolute_import
+from collections import Mapping, MutableMapping
+try:
+    from threading import RLock
+except ImportError:  # Platform-specific: No threads available
+    class RLock:
+        def __enter__(self):
+            pass
+
+        def __exit__(self, exc_type, exc_value, traceback):
+            pass
+
+
+try:  # Python 2.7+
+    from collections import OrderedDict
+except ImportError:
+    from .packages.ordered_dict import OrderedDict
+from .packages.six import iterkeys, itervalues, PY3
+
+
+__all__ = ['RecentlyUsedContainer', 'HTTPHeaderDict']
+
+
+_Null = object()
+
+
+class RecentlyUsedContainer(MutableMapping):
+    """
+    Provides a thread-safe dict-like container which maintains up to
+    ``maxsize`` keys while throwing away the least-recently-used keys beyond
+    ``maxsize``.
+
+    :param maxsize:
+        Maximum number of recent elements to retain.
+
+    :param dispose_func:
+        Every time an item is evicted from the container,
+        ``dispose_func(value)`` is called.  Callback which will get called
+    """
+
+    ContainerCls = OrderedDict
+
+    def __init__(self, maxsize=10, dispose_func=None):
+        self._maxsize = maxsize
+        self.dispose_func = dispose_func
+
+        self._container = self.ContainerCls()
+        self.lock = RLock()
+
+    def __getitem__(self, key):
+        # Re-insert the item, moving it to the end of the eviction line.
+        with self.lock:
+            item = self._container.pop(key)
+            self._container[key] = item
+            return item
+
+    def __setitem__(self, key, value):
+        evicted_value = _Null
+        with self.lock:
+            # Possibly evict the existing value of 'key'
+            evicted_value = self._container.get(key, _Null)
+            self._container[key] = value
+
+            # If we didn't evict an existing value, we might have to evict the
+            # least recently used item from the beginning of the container.
+            if len(self._container) > self._maxsize:
+                _key, evicted_value = self._container.popitem(last=False)
+
+        if self.dispose_func and evicted_value is not _Null:
+            self.dispose_func(evicted_value)
+
+    def __delitem__(self, key):
+        with self.lock:
+            value = self._container.pop(key)
+
+        if self.dispose_func:
+            self.dispose_func(value)
+
+    def __len__(self):
+        with self.lock:
+            return len(self._container)
+
+    def __iter__(self):
+        raise NotImplementedError('Iteration over this class is unlikely to be threadsafe.')
+
+    def clear(self):
+        with self.lock:
+            # Copy pointers to all values, then wipe the mapping
+            values = list(itervalues(self._container))
+            self._container.clear()
+
+        if self.dispose_func:
+            for value in values:
+                self.dispose_func(value)
+
+    def keys(self):
+        with self.lock:
+            return list(iterkeys(self._container))
+
+
+class HTTPHeaderDict(MutableMapping):
+    """
+    :param headers:
+        An iterable of field-value pairs. Must not contain multiple field names
+        when compared case-insensitively.
+
+    :param kwargs:
+        Additional field-value pairs to pass in to ``dict.update``.
+
+    A ``dict`` like container for storing HTTP Headers.
+
+    Field names are stored and compared case-insensitively in compliance with
+    RFC 7230. Iteration provides the first case-sensitive key seen for each
+    case-insensitive pair.
+
+    Using ``__setitem__`` syntax overwrites fields that compare equal
+    case-insensitively in order to maintain ``dict``'s api. For fields that
+    compare equal, instead create a new ``HTTPHeaderDict`` and use ``.add``
+    in a loop.
+
+    If multiple fields that are equal case-insensitively are passed to the
+    constructor or ``.update``, the behavior is undefined and some will be
+    lost.
+
+    >>> headers = HTTPHeaderDict()
+    >>> headers.add('Set-Cookie', 'foo=bar')
+    >>> headers.add('set-cookie', 'baz=quxx')
+    >>> headers['content-length'] = '7'
+    >>> headers['SET-cookie']
+    'foo=bar, baz=quxx'
+    >>> headers['Content-Length']
+    '7'
+    """
+
+    def __init__(self, headers=None, **kwargs):
+        super(HTTPHeaderDict, self).__init__()
+        self._container = OrderedDict()
+        if headers is not None:
+            if isinstance(headers, HTTPHeaderDict):
+                self._copy_from(headers)
+            else:
+                self.extend(headers)
+        if kwargs:
+            self.extend(kwargs)
+
+    def __setitem__(self, key, val):
+        self._container[key.lower()] = (key, val)
+        return self._container[key.lower()]
+
+    def __getitem__(self, key):
+        val = self._container[key.lower()]
+        return ', '.join(val[1:])
+
+    def __delitem__(self, key):
+        del self._container[key.lower()]
+
+    def __contains__(self, key):
+        return key.lower() in self._container
+
+    def __eq__(self, other):
+        if not isinstance(other, Mapping) and not hasattr(other, 'keys'):
+            return False
+        if not isinstance(other, type(self)):
+            other = type(self)(other)
+        return (dict((k.lower(), v) for k, v in self.itermerged()) ==
+                dict((k.lower(), v) for k, v in other.itermerged()))
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    if not PY3:  # Python 2
+        iterkeys = MutableMapping.iterkeys
+        itervalues = MutableMapping.itervalues
+
+    __marker = object()
+
+    def __len__(self):
+        return len(self._container)
+
+    def __iter__(self):
+        # Only provide the originally cased names
+        for vals in self._container.values():
+            yield vals[0]
+
+    def pop(self, key, default=__marker):
+        '''D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+          If key is not found, d is returned if given, otherwise KeyError is raised.
+        '''
+        # Using the MutableMapping function directly fails due to the private marker.
+        # Using ordinary dict.pop would expose the internal structures.
+        # So let's reinvent the wheel.
+        try:
+            value = self[key]
+        except KeyError:
+            if default is self.__marker:
+                raise
+            return default
+        else:
+            del self[key]
+            return value
+
+    def discard(self, key):
+        try:
+            del self[key]
+        except KeyError:
+            pass
+
+    def add(self, key, val):
+        """Adds a (name, value) pair, doesn't overwrite the value if it already
+        exists.
+
+        >>> headers = HTTPHeaderDict(foo='bar')
+        >>> headers.add('Foo', 'baz')
+        >>> headers['foo']
+        'bar, baz'
+        """
+        key_lower = key.lower()
+        new_vals = key, val
+        # Keep the common case aka no item present as fast as possible
+        vals = self._container.setdefault(key_lower, new_vals)
+        if new_vals is not vals:
+            # new_vals was not inserted, as there was a previous one
+            if isinstance(vals, list):
+                # If already several items got inserted, we have a list
+                vals.append(val)
+            else:
+                # vals should be a tuple then, i.e. only one item so far
+                # Need to convert the tuple to list for further extension
+                self._container[key_lower] = [vals[0], vals[1], val]
+
+    def extend(self, *args, **kwargs):
+        """Generic import function for any type of header-like object.
+        Adapted version of MutableMapping.update in order to insert items
+        with self.add instead of self.__setitem__
+        """
+        if len(args) > 1:
+            raise TypeError("extend() takes at most 1 positional "
+                            "arguments ({0} given)".format(len(args)))
+        other = args[0] if len(args) >= 1 else ()
+
+        if isinstance(other, HTTPHeaderDict):
+            for key, val in other.iteritems():
+                self.add(key, val)
+        elif isinstance(other, Mapping):
+            for key in other:
+                self.add(key, other[key])
+        elif hasattr(other, "keys"):
+            for key in other.keys():
+                self.add(key, other[key])
+        else:
+            for key, value in other:
+                self.add(key, value)
+
+        for key, value in kwargs.items():
+            self.add(key, value)
+
+    def getlist(self, key):
+        """Returns a list of all the values for the named field. Returns an
+        empty list if the key doesn't exist."""
+        try:
+            vals = self._container[key.lower()]
+        except KeyError:
+            return []
+        else:
+            if isinstance(vals, tuple):
+                return [vals[1]]
+            else:
+                return vals[1:]
+
+    # Backwards compatibility for httplib
+    getheaders = getlist
+    getallmatchingheaders = getlist
+    iget = getlist
+
+    def __repr__(self):
+        return "%s(%s)" % (type(self).__name__, dict(self.itermerged()))
+
+    def _copy_from(self, other):
+        for key in other:
+            val = other.getlist(key)
+            if isinstance(val, list):
+                # Don't need to convert tuples
+                val = list(val)
+            self._container[key.lower()] = [key] + val
+
+    def copy(self):
+        clone = type(self)()
+        clone._copy_from(self)
+        return clone
+
+    def iteritems(self):
+        """Iterate over all header lines, including duplicate ones."""
+        for key in self:
+            vals = self._container[key.lower()]
+            for val in vals[1:]:
+                yield vals[0], val
+
+    def itermerged(self):
+        """Iterate over all headers, merging duplicate ones together."""
+        for key in self:
+            val = self._container[key.lower()]
+            yield val[0], ', '.join(val[1:])
+
+    def items(self):
+        return list(self.iteritems())
+
+    @classmethod
+    def from_httplib(cls, message):  # Python 2
+        """Read headers from a Python 2 httplib message object."""
+        # python2.7 does not expose a proper API for exporting multiheaders
+        # efficiently. This function re-reads raw lines from the message
+        # object and extracts the multiheaders properly.
+        headers = []
+
+        for line in message.headers:
+            if line.startswith((' ', '\t')):
+                key, value = headers[-1]
+                headers[-1] = (key, value + '\r\n' + line.rstrip())
+                continue
+
+            key, value = line.split(':', 1)
+            headers.append((key, value.strip()))
+
+        return cls(headers)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py
new file mode 100644
index 0000000..5ce0080
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py
@@ -0,0 +1,330 @@
+from __future__ import absolute_import
+import datetime
+import logging
+import os
+import sys
+import socket
+from socket import error as SocketError, timeout as SocketTimeout
+import warnings
+from .packages import six
+
+try:  # Python 3
+    from http.client import HTTPConnection as _HTTPConnection
+    from http.client import HTTPException  # noqa: unused in this module
+except ImportError:
+    from httplib import HTTPConnection as _HTTPConnection
+    from httplib import HTTPException  # noqa: unused in this module
+
+try:  # Compiled with SSL?
+    import ssl
+    BaseSSLError = ssl.SSLError
+except (ImportError, AttributeError):  # Platform-specific: No SSL.
+    ssl = None
+
+    class BaseSSLError(BaseException):
+        pass
+
+
+try:  # Python 3:
+    # Not a no-op, we're adding this to the namespace so it can be imported.
+    ConnectionError = ConnectionError
+except NameError:  # Python 2:
+    class ConnectionError(Exception):
+        pass
+
+
+from .exceptions import (
+    NewConnectionError,
+    ConnectTimeoutError,
+    SubjectAltNameWarning,
+    SystemTimeWarning,
+)
+from .packages.ssl_match_hostname import match_hostname, CertificateError
+
+from .util.ssl_ import (
+    resolve_cert_reqs,
+    resolve_ssl_version,
+    ssl_wrap_socket,
+    assert_fingerprint,
+)
+
+
+from .util import connection
+
+from ._collections import HTTPHeaderDict
+
+log = logging.getLogger(__name__)
+
+port_by_scheme = {
+    'http': 80,
+    'https': 443,
+}
+
+RECENT_DATE = datetime.date(2014, 1, 1)
+
+
+class DummyConnection(object):
+    """Used to detect a failed ConnectionCls import."""
+    pass
+
+
+class HTTPConnection(_HTTPConnection, object):
+    """
+    Based on httplib.HTTPConnection but provides an extra constructor
+    backwards-compatibility layer between older and newer Pythons.
+
+    Additional keyword parameters are used to configure attributes of the connection.
+    Accepted parameters include:
+
+      - ``strict``: See the documentation on :class:`urllib3.connectionpool.HTTPConnectionPool`
+      - ``source_address``: Set the source address for the current connection.
+
+        .. note:: This is ignored for Python 2.6. It is only applied for 2.7 and 3.x
+
+      - ``socket_options``: Set specific options on the underlying socket. If not specified, then
+        defaults are loaded from ``HTTPConnection.default_socket_options`` which includes disabling
+        Nagle's algorithm (sets TCP_NODELAY to 1) unless the connection is behind a proxy.
+
+        For example, if you wish to enable TCP Keep Alive in addition to the defaults,
+        you might pass::
+
+            HTTPConnection.default_socket_options + [
+                (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),
+            ]
+
+        Or you may want to disable the defaults by passing an empty list (e.g., ``[]``).
+    """
+
+    default_port = port_by_scheme['http']
+
+    #: Disable Nagle's algorithm by default.
+    #: ``[(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]``
+    default_socket_options = [(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]
+
+    #: Whether this connection verifies the host's certificate.
+    is_verified = False
+
+    def __init__(self, *args, **kw):
+        if six.PY3:  # Python 3
+            kw.pop('strict', None)
+
+        # Pre-set source_address in case we have an older Python like 2.6.
+        self.source_address = kw.get('source_address')
+
+        if sys.version_info < (2, 7):  # Python 2.6
+            # _HTTPConnection on Python 2.6 will balk at this keyword arg, but
+            # not newer versions. We can still use it when creating a
+            # connection though, so we pop it *after* we have saved it as
+            # self.source_address.
+            kw.pop('source_address', None)
+
+        #: The socket options provided by the user. If no options are
+        #: provided, we use the default options.
+        self.socket_options = kw.pop('socket_options', self.default_socket_options)
+
+        # Superclass also sets self.source_address in Python 2.7+.
+        _HTTPConnection.__init__(self, *args, **kw)
+
+    def _new_conn(self):
+        """ Establish a socket connection and set nodelay settings on it.
+
+        :return: New socket connection.
+        """
+        extra_kw = {}
+        if self.source_address:
+            extra_kw['source_address'] = self.source_address
+
+        if self.socket_options:
+            extra_kw['socket_options'] = self.socket_options
+
+        try:
+            conn = connection.create_connection(
+                (self.host, self.port), self.timeout, **extra_kw)
+
+        except SocketTimeout as e:
+            raise ConnectTimeoutError(
+                self, "Connection to %s timed out. (connect timeout=%s)" %
+                (self.host, self.timeout))
+
+        except SocketError as e:
+            raise NewConnectionError(
+                self, "Failed to establish a new connection: %s" % e)
+
+        return conn
+
+    def _prepare_conn(self, conn):
+        self.sock = conn
+        # the _tunnel_host attribute was added in python 2.6.3 (via
+        # http://hg.python.org/cpython/rev/0f57b30a152f) so pythons 2.6(0-2) do
+        # not have them.
+        if getattr(self, '_tunnel_host', None):
+            # TODO: Fix tunnel so it doesn't depend on self.sock state.
+            self._tunnel()
+            # Mark this connection as not reusable
+            self.auto_open = 0
+
+    def connect(self):
+        conn = self._new_conn()
+        self._prepare_conn(conn)
+
+    def request_chunked(self, method, url, body=None, headers=None):
+        """
+        Alternative to the common request method, which sends the
+        body with chunked encoding and not as one block
+        """
+        headers = HTTPHeaderDict(headers if headers is not None else {})
+        skip_accept_encoding = 'accept-encoding' in headers
+        self.putrequest(method, url, skip_accept_encoding=skip_accept_encoding)
+        for header, value in headers.items():
+            self.putheader(header, value)
+        if 'transfer-encoding' not in headers:
+            self.putheader('Transfer-Encoding', 'chunked')
+        self.endheaders()
+
+        if body is not None:
+            stringish_types = six.string_types + (six.binary_type,)
+            if isinstance(body, stringish_types):
+                body = (body,)
+            for chunk in body:
+                if not chunk:
+                    continue
+                if not isinstance(chunk, six.binary_type):
+                    chunk = chunk.encode('utf8')
+                len_str = hex(len(chunk))[2:]
+                self.send(len_str.encode('utf-8'))
+                self.send(b'\r\n')
+                self.send(chunk)
+                self.send(b'\r\n')
+
+        # After the if clause, to always have a closed body
+        self.send(b'0\r\n\r\n')
+
+
+class HTTPSConnection(HTTPConnection):
+    default_port = port_by_scheme['https']
+
+    def __init__(self, host, port=None, key_file=None, cert_file=None,
+                 strict=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, **kw):
+
+        HTTPConnection.__init__(self, host, port, strict=strict,
+                                timeout=timeout, **kw)
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+
+        # Required property for Google AppEngine 1.9.0 which otherwise causes
+        # HTTPS requests to go out as HTTP. (See Issue #356)
+        self._protocol = 'https'
+
+    def connect(self):
+        conn = self._new_conn()
+        self._prepare_conn(conn)
+        self.sock = ssl.wrap_socket(conn, self.key_file, self.cert_file)
+
+
+class VerifiedHTTPSConnection(HTTPSConnection):
+    """
+    Based on httplib.HTTPSConnection but wraps the socket with
+    SSL certification.
+    """
+    cert_reqs = None
+    ca_certs = None
+    ca_cert_dir = None
+    ssl_version = None
+    assert_fingerprint = None
+
+    def set_cert(self, key_file=None, cert_file=None,
+                 cert_reqs=None, ca_certs=None,
+                 assert_hostname=None, assert_fingerprint=None,
+                 ca_cert_dir=None):
+
+        if (ca_certs or ca_cert_dir) and cert_reqs is None:
+            cert_reqs = 'CERT_REQUIRED'
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+        self.cert_reqs = cert_reqs
+        self.assert_hostname = assert_hostname
+        self.assert_fingerprint = assert_fingerprint
+        self.ca_certs = ca_certs and os.path.expanduser(ca_certs)
+        self.ca_cert_dir = ca_cert_dir and os.path.expanduser(ca_cert_dir)
+
+    def connect(self):
+        # Add certificate verification
+        conn = self._new_conn()
+
+        resolved_cert_reqs = resolve_cert_reqs(self.cert_reqs)
+        resolved_ssl_version = resolve_ssl_version(self.ssl_version)
+
+        hostname = self.host
+        if getattr(self, '_tunnel_host', None):
+            # _tunnel_host was added in Python 2.6.3
+            # (See: http://hg.python.org/cpython/rev/0f57b30a152f)
+
+            self.sock = conn
+            # Calls self._set_hostport(), so self.host is
+            # self._tunnel_host below.
+            self._tunnel()
+            # Mark this connection as not reusable
+            self.auto_open = 0
+
+            # Override the host with the one we're requesting data from.
+            hostname = self._tunnel_host
+
+        is_time_off = datetime.date.today() < RECENT_DATE
+        if is_time_off:
+            warnings.warn((
+                'System time is way off (before {0}). This will probably '
+                'lead to SSL verification errors').format(RECENT_DATE),
+                SystemTimeWarning
+            )
+
+        # Wrap socket using verification with the root certs in
+        # trusted_root_certs
+        self.sock = ssl_wrap_socket(conn, self.key_file, self.cert_file,
+                                    cert_reqs=resolved_cert_reqs,
+                                    ca_certs=self.ca_certs,
+                                    ca_cert_dir=self.ca_cert_dir,
+                                    server_hostname=hostname,
+                                    ssl_version=resolved_ssl_version)
+
+        if self.assert_fingerprint:
+            assert_fingerprint(self.sock.getpeercert(binary_form=True),
+                               self.assert_fingerprint)
+        elif resolved_cert_reqs != ssl.CERT_NONE \
+                and self.assert_hostname is not False:
+            cert = self.sock.getpeercert()
+            if not cert.get('subjectAltName', ()):
+                warnings.warn((
+                    'Certificate for {0} has no `subjectAltName`, falling back to check for a '
+                    '`commonName` for now. This feature is being removed by major browsers and '
+                    'deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 '
+                    'for details.)'.format(hostname)),
+                    SubjectAltNameWarning
+                )
+            _match_hostname(cert, self.assert_hostname or hostname)
+
+        self.is_verified = (resolved_cert_reqs == ssl.CERT_REQUIRED or
+                            self.assert_fingerprint is not None)
+
+
+def _match_hostname(cert, asserted_hostname):
+    try:
+        match_hostname(cert, asserted_hostname)
+    except CertificateError as e:
+        log.error(
+            'Certificate did not match expected hostname: %s. '
+            'Certificate: %s', asserted_hostname, cert
+        )
+        # Add cert to exception and reraise so client code can inspect
+        # the cert when catching the exception, if they want to
+        e._peer_cert = cert
+        raise
+
+
+if ssl:
+    # Make a copy for testing.
+    UnverifiedHTTPSConnection = HTTPSConnection
+    HTTPSConnection = VerifiedHTTPSConnection
+else:
+    HTTPSConnection = DummyConnection
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py
new file mode 100644
index 0000000..ab634cb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py
@@ -0,0 +1,866 @@
+from __future__ import absolute_import
+import errno
+import logging
+import sys
+import warnings
+
+from socket import error as SocketError, timeout as SocketTimeout
+import socket
+
+try:  # Python 3
+    from queue import LifoQueue, Empty, Full
+except ImportError:
+    from Queue import LifoQueue, Empty, Full
+    # Queue is imported for side effects on MS Windows
+    import Queue as _unused_module_Queue  # noqa: unused
+
+
+from .exceptions import (
+    ClosedPoolError,
+    ProtocolError,
+    EmptyPoolError,
+    HeaderParsingError,
+    HostChangedError,
+    LocationValueError,
+    MaxRetryError,
+    ProxyError,
+    ReadTimeoutError,
+    SSLError,
+    TimeoutError,
+    InsecureRequestWarning,
+    NewConnectionError,
+)
+from .packages.ssl_match_hostname import CertificateError
+from .packages import six
+from .connection import (
+    port_by_scheme,
+    DummyConnection,
+    HTTPConnection, HTTPSConnection, VerifiedHTTPSConnection,
+    HTTPException, BaseSSLError,
+)
+from .request import RequestMethods
+from .response import HTTPResponse
+
+from .util.connection import is_connection_dropped
+from .util.response import assert_header_parsing
+from .util.retry import Retry
+from .util.timeout import Timeout
+from .util.url import get_host, Url
+
+
+xrange = six.moves.xrange
+
+log = logging.getLogger(__name__)
+
+_Default = object()
+
+
+# Pool objects
+class ConnectionPool(object):
+    """
+    Base class for all connection pools, such as
+    :class:`.HTTPConnectionPool` and :class:`.HTTPSConnectionPool`.
+    """
+
+    scheme = None
+    QueueCls = LifoQueue
+
+    def __init__(self, host, port=None):
+        if not host:
+            raise LocationValueError("No host specified.")
+
+        # httplib doesn't like it when we include brackets in ipv6 addresses
+        # Specifically, if we include brackets but also pass the port then
+        # httplib crazily doubles up the square brackets on the Host header.
+        # Instead, we need to make sure we never pass ``None`` as the port.
+        # However, for backward compatibility reasons we can't actually
+        # *assert* that.
+        self.host = host.strip('[]')
+        self.port = port
+
+    def __str__(self):
+        return '%s(host=%r, port=%r)' % (type(self).__name__,
+                                         self.host, self.port)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.close()
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def close(self):
+        """
+        Close all pooled connections and disable the pool.
+        """
+        pass
+
+
+# This is taken from http://hg.python.org/cpython/file/7aaba721ebc0/Lib/socket.py#l252
+_blocking_errnos = set([errno.EAGAIN, errno.EWOULDBLOCK])
+
+
+class HTTPConnectionPool(ConnectionPool, RequestMethods):
+    """
+    Thread-safe connection pool for one host.
+
+    :param host:
+        Host used for this HTTP Connection (e.g. "localhost"), passed into
+        :class:`httplib.HTTPConnection`.
+
+    :param port:
+        Port used for this HTTP Connection (None is equivalent to 80), passed
+        into :class:`httplib.HTTPConnection`.
+
+    :param strict:
+        Causes BadStatusLine to be raised if the status line can't be parsed
+        as a valid HTTP/1.0 or 1.1 status line, passed into
+        :class:`httplib.HTTPConnection`.
+
+        .. note::
+           Only works in Python 2. This parameter is ignored in Python 3.
+
+    :param timeout:
+        Socket timeout in seconds for each individual connection. This can
+        be a float or integer, which sets the timeout for the HTTP request,
+        or an instance of :class:`urllib3.util.Timeout` which gives you more
+        fine-grained control over request timeouts. After the constructor has
+        been parsed, this is always a `urllib3.util.Timeout` object.
+
+    :param maxsize:
+        Number of connections to save that can be reused. More than 1 is useful
+        in multithreaded situations. If ``block`` is set to False, more
+        connections will be created but they will not be saved once they've
+        been used.
+
+    :param block:
+        If set to True, no more than ``maxsize`` connections will be used at
+        a time. When no free connections are available, the call will block
+        until a connection has been released. This is a useful side effect for
+        particular multithreaded situations where one does not want to use more
+        than maxsize connections per host to prevent flooding.
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+
+    :param retries:
+        Retry configuration to use by default with requests in this pool.
+
+    :param _proxy:
+        Parsed proxy URL, should not be used directly, instead, see
+        :class:`urllib3.connectionpool.ProxyManager`"
+
+    :param _proxy_headers:
+        A dictionary with proxy headers, should not be used directly,
+        instead, see :class:`urllib3.connectionpool.ProxyManager`"
+
+    :param \**conn_kw:
+        Additional parameters are used to create fresh :class:`urllib3.connection.HTTPConnection`,
+        :class:`urllib3.connection.HTTPSConnection` instances.
+    """
+
+    scheme = 'http'
+    ConnectionCls = HTTPConnection
+    ResponseCls = HTTPResponse
+
+    def __init__(self, host, port=None, strict=False,
+                 timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1, block=False,
+                 headers=None, retries=None,
+                 _proxy=None, _proxy_headers=None,
+                 **conn_kw):
+        ConnectionPool.__init__(self, host, port)
+        RequestMethods.__init__(self, headers)
+
+        self.strict = strict
+
+        if not isinstance(timeout, Timeout):
+            timeout = Timeout.from_float(timeout)
+
+        if retries is None:
+            retries = Retry.DEFAULT
+
+        self.timeout = timeout
+        self.retries = retries
+
+        self.pool = self.QueueCls(maxsize)
+        self.block = block
+
+        self.proxy = _proxy
+        self.proxy_headers = _proxy_headers or {}
+
+        # Fill the queue up so that doing get() on it will block properly
+        for _ in xrange(maxsize):
+            self.pool.put(None)
+
+        # These are mostly for testing and debugging purposes.
+        self.num_connections = 0
+        self.num_requests = 0
+        self.conn_kw = conn_kw
+
+        if self.proxy:
+            # Enable Nagle's algorithm for proxies, to avoid packet fragmentation.
+            # We cannot know if the user has added default socket options, so we cannot replace the
+            # list.
+            self.conn_kw.setdefault('socket_options', [])
+
+    def _new_conn(self):
+        """
+        Return a fresh :class:`HTTPConnection`.
+        """
+        self.num_connections += 1
+        log.info("Starting new HTTP connection (%d): %s",
+                 self.num_connections, self.host)
+
+        conn = self.ConnectionCls(host=self.host, port=self.port,
+                                  timeout=self.timeout.connect_timeout,
+                                  strict=self.strict, **self.conn_kw)
+        return conn
+
+    def _get_conn(self, timeout=None):
+        """
+        Get a connection. Will return a pooled connection if one is available.
+
+        If no connections are available and :prop:`.block` is ``False``, then a
+        fresh connection is returned.
+
+        :param timeout:
+            Seconds to wait before giving up and raising
+            :class:`urllib3.exceptions.EmptyPoolError` if the pool is empty and
+            :prop:`.block` is ``True``.
+        """
+        conn = None
+        try:
+            conn = self.pool.get(block=self.block, timeout=timeout)
+
+        except AttributeError:  # self.pool is None
+            raise ClosedPoolError(self, "Pool is closed.")
+
+        except Empty:
+            if self.block:
+                raise EmptyPoolError(self,
+                                     "Pool reached maximum size and no more "
+                                     "connections are allowed.")
+            pass  # Oh well, we'll create a new connection then
+
+        # If this is a persistent connection, check if it got disconnected
+        if conn and is_connection_dropped(conn):
+            log.info("Resetting dropped connection: %s", self.host)
+            conn.close()
+            if getattr(conn, 'auto_open', 1) == 0:
+                # This is a proxied connection that has been mutated by
+                # httplib._tunnel() and cannot be reused (since it would
+                # attempt to bypass the proxy)
+                conn = None
+
+        return conn or self._new_conn()
+
+    def _put_conn(self, conn):
+        """
+        Put a connection back into the pool.
+
+        :param conn:
+            Connection object for the current host and port as returned by
+            :meth:`._new_conn` or :meth:`._get_conn`.
+
+        If the pool is already full, the connection is closed and discarded
+        because we exceeded maxsize. If connections are discarded frequently,
+        then maxsize should be increased.
+
+        If the pool is closed, then the connection will be closed and discarded.
+        """
+        try:
+            self.pool.put(conn, block=False)
+            return  # Everything is dandy, done.
+        except AttributeError:
+            # self.pool is None.
+            pass
+        except Full:
+            # This should never happen if self.block == True
+            log.warning(
+                "Connection pool is full, discarding connection: %s",
+                self.host)
+
+        # Connection never got put back into the pool, close it.
+        if conn:
+            conn.close()
+
+    def _validate_conn(self, conn):
+        """
+        Called right before a request is made, after the socket is created.
+        """
+        pass
+
+    def _prepare_proxy(self, conn):
+        # Nothing to do for HTTP connections.
+        pass
+
+    def _get_timeout(self, timeout):
+        """ Helper that always returns a :class:`urllib3.util.Timeout` """
+        if timeout is _Default:
+            return self.timeout.clone()
+
+        if isinstance(timeout, Timeout):
+            return timeout.clone()
+        else:
+            # User passed us an int/float. This is for backwards compatibility,
+            # can be removed later
+            return Timeout.from_float(timeout)
+
+    def _raise_timeout(self, err, url, timeout_value):
+        """Is the error actually a timeout? Will raise a ReadTimeout or pass"""
+
+        if isinstance(err, SocketTimeout):
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+        # See the above comment about EAGAIN in Python 3. In Python 2 we have
+        # to specifically catch it and throw the timeout error
+        if hasattr(err, 'errno') and err.errno in _blocking_errnos:
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+        # Catch possible read timeouts thrown as SSL errors. If not the
+        # case, rethrow the original. We need to do this because of:
+        # http://bugs.python.org/issue10272
+        if 'timed out' in str(err) or 'did not complete (read)' in str(err):  # Python 2.6
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+    def _make_request(self, conn, method, url, timeout=_Default, chunked=False,
+                      **httplib_request_kw):
+        """
+        Perform a request on a given urllib connection object taken from our
+        pool.
+
+        :param conn:
+            a connection from one of our connection pools
+
+        :param timeout:
+            Socket timeout in seconds for the request. This can be a
+            float or integer, which will set the same timeout value for
+            the socket connect and the socket read, or an instance of
+            :class:`urllib3.util.Timeout`, which gives you more fine-grained
+            control over your timeouts.
+        """
+        self.num_requests += 1
+
+        timeout_obj = self._get_timeout(timeout)
+        timeout_obj.start_connect()
+        conn.timeout = timeout_obj.connect_timeout
+
+        # Trigger any extra validation we need to do.
+        try:
+            self._validate_conn(conn)
+        except (SocketTimeout, BaseSSLError) as e:
+            # Py2 raises this as a BaseSSLError, Py3 raises it as socket timeout.
+            self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
+            raise
+
+        # conn.request() calls httplib.*.request, not the method in
+        # urllib3.request. It also calls makefile (recv) on the socket.
+        if chunked:
+            conn.request_chunked(method, url, **httplib_request_kw)
+        else:
+            conn.request(method, url, **httplib_request_kw)
+
+        # Reset the timeout for the recv() on the socket
+        read_timeout = timeout_obj.read_timeout
+
+        # App Engine doesn't have a sock attr
+        if getattr(conn, 'sock', None):
+            # In Python 3 socket.py will catch EAGAIN and return None when you
+            # try and read into the file pointer created by http.client, which
+            # instead raises a BadStatusLine exception. Instead of catching
+            # the exception and assuming all BadStatusLine exceptions are read
+            # timeouts, check for a zero timeout before making the request.
+            if read_timeout == 0:
+                raise ReadTimeoutError(
+                    self, url, "Read timed out. (read timeout=%s)" % read_timeout)
+            if read_timeout is Timeout.DEFAULT_TIMEOUT:
+                conn.sock.settimeout(socket.getdefaulttimeout())
+            else:  # None or a value
+                conn.sock.settimeout(read_timeout)
+
+        # Receive the response from the server
+        try:
+            try:  # Python 2.7, use buffering of HTTP responses
+                httplib_response = conn.getresponse(buffering=True)
+            except TypeError:  # Python 2.6 and older, Python 3
+                try:
+                    httplib_response = conn.getresponse()
+                except Exception as e:
+                    # Remove the TypeError from the exception chain in Python 3;
+                    # otherwise it looks like a programming error was the cause.
+                    six.raise_from(e, None)
+        except (SocketTimeout, BaseSSLError, SocketError) as e:
+            self._raise_timeout(err=e, url=url, timeout_value=read_timeout)
+            raise
+
+        # AppEngine doesn't have a version attr.
+        http_version = getattr(conn, '_http_vsn_str', 'HTTP/?')
+        log.debug("\"%s %s %s\" %s %s", method, url, http_version,
+                  httplib_response.status, httplib_response.length)
+
+        try:
+            assert_header_parsing(httplib_response.msg)
+        except HeaderParsingError as hpe:  # Platform-specific: Python 3
+            log.warning(
+                'Failed to parse headers (url=%s): %s',
+                self._absolute_url(url), hpe, exc_info=True)
+
+        return httplib_response
+
+    def _absolute_url(self, path):
+        return Url(scheme=self.scheme, host=self.host, port=self.port, path=path).url
+
+    def close(self):
+        """
+        Close all pooled connections and disable the pool.
+        """
+        # Disable access to the pool
+        old_pool, self.pool = self.pool, None
+
+        try:
+            while True:
+                conn = old_pool.get(block=False)
+                if conn:
+                    conn.close()
+
+        except Empty:
+            pass  # Done.
+
+    def is_same_host(self, url):
+        """
+        Check if the given ``url`` is a member of the same host as this
+        connection pool.
+        """
+        if url.startswith('/'):
+            return True
+
+        # TODO: Add optional support for socket.gethostbyname checking.
+        scheme, host, port = get_host(url)
+
+        # Use explicit default port for comparison when none is given
+        if self.port and not port:
+            port = port_by_scheme.get(scheme)
+        elif not self.port and port == port_by_scheme.get(scheme):
+            port = None
+
+        return (scheme, host, port) == (self.scheme, self.host, self.port)
+
+    def urlopen(self, method, url, body=None, headers=None, retries=None,
+                redirect=True, assert_same_host=True, timeout=_Default,
+                pool_timeout=None, release_conn=None, chunked=False,
+                **response_kw):
+        """
+        Get a connection from the pool and perform an HTTP request. This is the
+        lowest level call for making a request, so you'll need to specify all
+        the raw details.
+
+        .. note::
+
+           More commonly, it's appropriate to use a convenience method provided
+           by :class:`.RequestMethods`, such as :meth:`request`.
+
+        .. note::
+
+           `release_conn` will only behave as expected if
+           `preload_content=False` because we want to make
+           `preload_content=False` the default behaviour someday soon without
+           breaking backwards compatibility.
+
+        :param method:
+            HTTP request method (such as GET, POST, PUT, etc.)
+
+        :param body:
+            Data to send in the request body (useful for creating
+            POST requests, see HTTPConnectionPool.post_url for
+            more convenience).
+
+        :param headers:
+            Dictionary of custom headers to send, such as User-Agent,
+            If-None-Match, etc. If None, pool headers are used. If provided,
+            these headers completely replace any pool-specific headers.
+
+        :param retries:
+            Configure the number of retries to allow before raising a
+            :class:`~urllib3.exceptions.MaxRetryError` exception.
+
+            Pass ``None`` to retry until you receive a response. Pass a
+            :class:`~urllib3.util.retry.Retry` object for fine-grained control
+            over different types of retries.
+            Pass an integer number to retry connection errors that many times,
+            but no other types of errors. Pass zero to never retry.
+
+            If ``False``, then retries are disabled and any exception is raised
+            immediately. Also, instead of raising a MaxRetryError on redirects,
+            the redirect response will be returned.
+
+        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
+
+        :param redirect:
+            If True, automatically handle redirects (status codes 301, 302,
+            303, 307, 308). Each redirect counts as a retry. Disabling retries
+            will disable redirect, too.
+
+        :param assert_same_host:
+            If ``True``, will make sure that the host of the pool requests is
+            consistent else will raise HostChangedError. When False, you can
+            use the pool on an HTTP proxy and request foreign hosts.
+
+        :param timeout:
+            If specified, overrides the default timeout for this one
+            request. It may be a float (in seconds) or an instance of
+            :class:`urllib3.util.Timeout`.
+
+        :param pool_timeout:
+            If set and the pool is set to block=True, then this method will
+            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
+            connection is available within the time period.
+
+        :param release_conn:
+            If False, then the urlopen call will not release the connection
+            back into the pool once a response is received (but will release if
+            you read the entire contents of the response such as when
+            `preload_content=True`). This is useful if you're not preloading
+            the response's content immediately. You will need to call
+            ``r.release_conn()`` on the response ``r`` to return the connection
+            back into the pool. If None, it takes the value of
+            ``response_kw.get('preload_content', True)``.
+
+        :param chunked:
+            If True, urllib3 will send the body using chunked transfer
+            encoding. Otherwise, urllib3 will send the body using the standard
+            content-length form. Defaults to False.
+
+        :param \**response_kw:
+            Additional parameters are passed to
+            :meth:`urllib3.response.HTTPResponse.from_httplib`
+        """
+        if headers is None:
+            headers = self.headers
+
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
+
+        if release_conn is None:
+            release_conn = response_kw.get('preload_content', True)
+
+        # Check host
+        if assert_same_host and not self.is_same_host(url):
+            raise HostChangedError(self, url, retries)
+
+        conn = None
+
+        # Track whether `conn` needs to be released before
+        # returning/raising/recursing. Update this variable if necessary, and
+        # leave `release_conn` constant throughout the function. That way, if
+        # the function recurses, the original value of `release_conn` will be
+        # passed down into the recursive call, and its value will be respected.
+        #
+        # See issue #651 [1] for details.
+        #
+        # [1] <https://github.com/shazow/urllib3/issues/651>
+        release_this_conn = release_conn
+
+        # Merge the proxy headers. Only do this in HTTP. We have to copy the
+        # headers dict so we can safely change it without those changes being
+        # reflected in anyone else's copy.
+        if self.scheme == 'http':
+            headers = headers.copy()
+            headers.update(self.proxy_headers)
+
+        # Must keep the exception bound to a separate variable or else Python 3
+        # complains about UnboundLocalError.
+        err = None
+
+        # Keep track of whether we cleanly exited the except block. This
+        # ensures we do proper cleanup in finally.
+        clean_exit = False
+
+        try:
+            # Request a connection from the queue.
+            timeout_obj = self._get_timeout(timeout)
+            conn = self._get_conn(timeout=pool_timeout)
+
+            conn.timeout = timeout_obj.connect_timeout
+
+            is_new_proxy_conn = self.proxy is not None and not getattr(conn, 'sock', None)
+            if is_new_proxy_conn:
+                self._prepare_proxy(conn)
+
+            # Make the request on the httplib connection object.
+            httplib_response = self._make_request(conn, method, url,
+                                                  timeout=timeout_obj,
+                                                  body=body, headers=headers,
+                                                  chunked=chunked)
+
+            # If we're going to release the connection in ``finally:``, then
+            # the response doesn't need to know about the connection. Otherwise
+            # it will also try to release it and we'll have a double-release
+            # mess.
+            response_conn = conn if not release_conn else None
+
+            # Import httplib's response into our own wrapper object
+            response = self.ResponseCls.from_httplib(httplib_response,
+                                                     pool=self,
+                                                     connection=response_conn,
+                                                     **response_kw)
+
+            # Everything went great!
+            clean_exit = True
+
+        except Empty:
+            # Timed out by queue.
+            raise EmptyPoolError(self, "No pool connections are available.")
+
+        except (BaseSSLError, CertificateError) as e:
+            # Close the connection. If a connection is reused on which there
+            # was a Certificate error, the next request will certainly raise
+            # another Certificate error.
+            clean_exit = False
+            raise SSLError(e)
+
+        except SSLError:
+            # Treat SSLError separately from BaseSSLError to preserve
+            # traceback.
+            clean_exit = False
+            raise
+
+        except (TimeoutError, HTTPException, SocketError, ProtocolError) as e:
+            # Discard the connection for these exceptions. It will be
+            # be replaced during the next _get_conn() call.
+            clean_exit = False
+
+            if isinstance(e, (SocketError, NewConnectionError)) and self.proxy:
+                e = ProxyError('Cannot connect to proxy.', e)
+            elif isinstance(e, (SocketError, HTTPException)):
+                e = ProtocolError('Connection aborted.', e)
+
+            retries = retries.increment(method, url, error=e, _pool=self,
+                                        _stacktrace=sys.exc_info()[2])
+            retries.sleep()
+
+            # Keep track of the error for the retry warning.
+            err = e
+
+        finally:
+            if not clean_exit:
+                # We hit some kind of exception, handled or otherwise. We need
+                # to throw the connection away unless explicitly told not to.
+                # Close the connection, set the variable to None, and make sure
+                # we put the None back in the pool to avoid leaking it.
+                conn = conn and conn.close()
+                release_this_conn = True
+
+            if release_this_conn:
+                # Put the connection back to be reused. If the connection is
+                # expired then it will be None, which will get replaced with a
+                # fresh connection during _get_conn.
+                self._put_conn(conn)
+
+        if not conn:
+            # Try again
+            log.warning("Retrying (%r) after connection "
+                        "broken by '%r': %s", retries, err, url)
+            return self.urlopen(method, url, body, headers, retries,
+                                redirect, assert_same_host,
+                                timeout=timeout, pool_timeout=pool_timeout,
+                                release_conn=release_conn, **response_kw)
+
+        # Handle redirect?
+        redirect_location = redirect and response.get_redirect_location()
+        if redirect_location:
+            if response.status == 303:
+                method = 'GET'
+
+            try:
+                retries = retries.increment(method, url, response=response, _pool=self)
+            except MaxRetryError:
+                if retries.raise_on_redirect:
+                    # Release the connection for this response, since we're not
+                    # returning it to be released manually.
+                    response.release_conn()
+                    raise
+                return response
+
+            log.info("Redirecting %s -> %s", url, redirect_location)
+            return self.urlopen(
+                method, redirect_location, body, headers,
+                retries=retries, redirect=redirect,
+                assert_same_host=assert_same_host,
+                timeout=timeout, pool_timeout=pool_timeout,
+                release_conn=release_conn, **response_kw)
+
+        # Check if we should retry the HTTP response.
+        if retries.is_forced_retry(method, status_code=response.status):
+            try:
+                retries = retries.increment(method, url, response=response, _pool=self)
+            except MaxRetryError:
+                if retries.raise_on_status:
+                    # Release the connection for this response, since we're not
+                    # returning it to be released manually.
+                    response.release_conn()
+                    raise
+                return response
+            retries.sleep()
+            log.info("Forced retry: %s", url)
+            return self.urlopen(
+                method, url, body, headers,
+                retries=retries, redirect=redirect,
+                assert_same_host=assert_same_host,
+                timeout=timeout, pool_timeout=pool_timeout,
+                release_conn=release_conn, **response_kw)
+
+        return response
+
+
+class HTTPSConnectionPool(HTTPConnectionPool):
+    """
+    Same as :class:`.HTTPConnectionPool`, but HTTPS.
+
+    When Python is compiled with the :mod:`ssl` module, then
+    :class:`.VerifiedHTTPSConnection` is used, which *can* verify certificates,
+    instead of :class:`.HTTPSConnection`.
+
+    :class:`.VerifiedHTTPSConnection` uses one of ``assert_fingerprint``,
+    ``assert_hostname`` and ``host`` in this order to verify connections.
+    If ``assert_hostname`` is False, no verification is done.
+
+    The ``key_file``, ``cert_file``, ``cert_reqs``, ``ca_certs``,
+    ``ca_cert_dir``, and ``ssl_version`` are only used if :mod:`ssl` is
+    available and are fed into :meth:`urllib3.util.ssl_wrap_socket` to upgrade
+    the connection socket into an SSL socket.
+    """
+
+    scheme = 'https'
+    ConnectionCls = HTTPSConnection
+
+    def __init__(self, host, port=None,
+                 strict=False, timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1,
+                 block=False, headers=None, retries=None,
+                 _proxy=None, _proxy_headers=None,
+                 key_file=None, cert_file=None, cert_reqs=None,
+                 ca_certs=None, ssl_version=None,
+                 assert_hostname=None, assert_fingerprint=None,
+                 ca_cert_dir=None, **conn_kw):
+
+        HTTPConnectionPool.__init__(self, host, port, strict, timeout, maxsize,
+                                    block, headers, retries, _proxy, _proxy_headers,
+                                    **conn_kw)
+
+        if ca_certs and cert_reqs is None:
+            cert_reqs = 'CERT_REQUIRED'
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+        self.cert_reqs = cert_reqs
+        self.ca_certs = ca_certs
+        self.ca_cert_dir = ca_cert_dir
+        self.ssl_version = ssl_version
+        self.assert_hostname = assert_hostname
+        self.assert_fingerprint = assert_fingerprint
+
+    def _prepare_conn(self, conn):
+        """
+        Prepare the ``connection`` for :meth:`urllib3.util.ssl_wrap_socket`
+        and establish the tunnel if proxy is used.
+        """
+
+        if isinstance(conn, VerifiedHTTPSConnection):
+            conn.set_cert(key_file=self.key_file,
+                          cert_file=self.cert_file,
+                          cert_reqs=self.cert_reqs,
+                          ca_certs=self.ca_certs,
+                          ca_cert_dir=self.ca_cert_dir,
+                          assert_hostname=self.assert_hostname,
+                          assert_fingerprint=self.assert_fingerprint)
+            conn.ssl_version = self.ssl_version
+
+        return conn
+
+    def _prepare_proxy(self, conn):
+        """
+        Establish tunnel connection early, because otherwise httplib
+        would improperly set Host: header to proxy's IP:port.
+        """
+        # Python 2.7+
+        try:
+            set_tunnel = conn.set_tunnel
+        except AttributeError:  # Platform-specific: Python 2.6
+            set_tunnel = conn._set_tunnel
+
+        if sys.version_info <= (2, 6, 4) and not self.proxy_headers:  # Python 2.6.4 and older
+            set_tunnel(self.host, self.port)
+        else:
+            set_tunnel(self.host, self.port, self.proxy_headers)
+
+        conn.connect()
+
+    def _new_conn(self):
+        """
+        Return a fresh :class:`httplib.HTTPSConnection`.
+        """
+        self.num_connections += 1
+        log.info("Starting new HTTPS connection (%d): %s",
+                 self.num_connections, self.host)
+
+        if not self.ConnectionCls or self.ConnectionCls is DummyConnection:
+            raise SSLError("Can't connect to HTTPS URL because the SSL "
+                           "module is not available.")
+
+        actual_host = self.host
+        actual_port = self.port
+        if self.proxy is not None:
+            actual_host = self.proxy.host
+            actual_port = self.proxy.port
+
+        conn = self.ConnectionCls(host=actual_host, port=actual_port,
+                                  timeout=self.timeout.connect_timeout,
+                                  strict=self.strict, **self.conn_kw)
+
+        return self._prepare_conn(conn)
+
+    def _validate_conn(self, conn):
+        """
+        Called right before a request is made, after the socket is created.
+        """
+        super(HTTPSConnectionPool, self)._validate_conn(conn)
+
+        # Force connect early to allow us to validate the connection.
+        if not getattr(conn, 'sock', None):  # AppEngine might not have  `.sock`
+            conn.connect()
+
+        if not conn.is_verified:
+            warnings.warn((
+                'Unverified HTTPS request is being made. '
+                'Adding certificate verification is strongly advised. See: '
+                'https://urllib3.readthedocs.io/en/latest/security.html'),
+                InsecureRequestWarning)
+
+
+def connection_from_url(url, **kw):
+    """
+    Given a url, return an :class:`.ConnectionPool` instance of its host.
+
+    This is a shortcut for not having to parse out the scheme, host, and port
+    of the url before creating an :class:`.ConnectionPool` instance.
+
+    :param url:
+        Absolute URL string that must include the scheme. Port is optional.
+
+    :param \**kw:
+        Passes additional parameters to the constructor of the appropriate
+        :class:`.ConnectionPool`. Useful for specifying things like
+        timeout, maxsize, headers, etc.
+
+    Example::
+
+        >>> conn = connection_from_url('http://google.com/')
+        >>> r = conn.request('GET', '/')
+    """
+    scheme, host, port = get_host(url)
+    port = port or port_by_scheme.get(scheme, 80)
+    if scheme == 'https':
+        return HTTPSConnectionPool(host, port=port, **kw)
+    else:
+        return HTTPConnectionPool(host, port=port, **kw)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py
new file mode 100644
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--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py
@@ -0,0 +1,231 @@
+from __future__ import absolute_import
+import logging
+import os
+import warnings
+
+from ..exceptions import (
+    HTTPError,
+    HTTPWarning,
+    MaxRetryError,
+    ProtocolError,
+    TimeoutError,
+    SSLError
+)
+
+from ..packages.six import BytesIO
+from ..request import RequestMethods
+from ..response import HTTPResponse
+from ..util.timeout import Timeout
+from ..util.retry import Retry
+
+try:
+    from google.appengine.api import urlfetch
+except ImportError:
+    urlfetch = None
+
+
+log = logging.getLogger(__name__)
+
+
+class AppEnginePlatformWarning(HTTPWarning):
+    pass
+
+
+class AppEnginePlatformError(HTTPError):
+    pass
+
+
+class AppEngineManager(RequestMethods):
+    """
+    Connection manager for Google App Engine sandbox applications.
+
+    This manager uses the URLFetch service directly instead of using the
+    emulated httplib, and is subject to URLFetch limitations as described in
+    the App Engine documentation here:
+
+        https://cloud.google.com/appengine/docs/python/urlfetch
+
+    Notably it will raise an AppEnginePlatformError if:
+        * URLFetch is not available.
+        * If you attempt to use this on GAEv2 (Managed VMs), as full socket
+          support is available.
+        * If a request size is more than 10 megabytes.
+        * If a response size is more than 32 megabtyes.
+        * If you use an unsupported request method such as OPTIONS.
+
+    Beyond those cases, it will raise normal urllib3 errors.
+    """
+
+    def __init__(self, headers=None, retries=None, validate_certificate=True):
+        if not urlfetch:
+            raise AppEnginePlatformError(
+                "URLFetch is not available in this environment.")
+
+        if is_prod_appengine_mvms():
+            raise AppEnginePlatformError(
+                "Use normal urllib3.PoolManager instead of AppEngineManager"
+                "on Managed VMs, as using URLFetch is not necessary in "
+                "this environment.")
+
+        warnings.warn(
+            "urllib3 is using URLFetch on Google App Engine sandbox instead "
+            "of sockets. To use sockets directly instead of URLFetch see "
+            "https://urllib3.readthedocs.io/en/latest/contrib.html.",
+            AppEnginePlatformWarning)
+
+        RequestMethods.__init__(self, headers)
+        self.validate_certificate = validate_certificate
+
+        self.retries = retries or Retry.DEFAULT
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def urlopen(self, method, url, body=None, headers=None,
+                retries=None, redirect=True, timeout=Timeout.DEFAULT_TIMEOUT,
+                **response_kw):
+
+        retries = self._get_retries(retries, redirect)
+
+        try:
+            response = urlfetch.fetch(
+                url,
+                payload=body,
+                method=method,
+                headers=headers or {},
+                allow_truncated=False,
+                follow_redirects=(
+                    redirect and
+                    retries.redirect != 0 and
+                    retries.total),
+                deadline=self._get_absolute_timeout(timeout),
+                validate_certificate=self.validate_certificate,
+            )
+        except urlfetch.DeadlineExceededError as e:
+            raise TimeoutError(self, e)
+
+        except urlfetch.InvalidURLError as e:
+            if 'too large' in str(e):
+                raise AppEnginePlatformError(
+                    "URLFetch request too large, URLFetch only "
+                    "supports requests up to 10mb in size.", e)
+            raise ProtocolError(e)
+
+        except urlfetch.DownloadError as e:
+            if 'Too many redirects' in str(e):
+                raise MaxRetryError(self, url, reason=e)
+            raise ProtocolError(e)
+
+        except urlfetch.ResponseTooLargeError as e:
+            raise AppEnginePlatformError(
+                "URLFetch response too large, URLFetch only supports"
+                "responses up to 32mb in size.", e)
+
+        except urlfetch.SSLCertificateError as e:
+            raise SSLError(e)
+
+        except urlfetch.InvalidMethodError as e:
+            raise AppEnginePlatformError(
+                "URLFetch does not support method: %s" % method, e)
+
+        http_response = self._urlfetch_response_to_http_response(
+            response, **response_kw)
+
+        # Check for redirect response
+        if (http_response.get_redirect_location() and
+                retries.raise_on_redirect and redirect):
+            raise MaxRetryError(self, url, "too many redirects")
+
+        # Check if we should retry the HTTP response.
+        if retries.is_forced_retry(method, status_code=http_response.status):
+            retries = retries.increment(
+                method, url, response=http_response, _pool=self)
+            log.info("Forced retry: %s", url)
+            retries.sleep()
+            return self.urlopen(
+                method, url,
+                body=body, headers=headers,
+                retries=retries, redirect=redirect,
+                timeout=timeout, **response_kw)
+
+        return http_response
+
+    def _urlfetch_response_to_http_response(self, urlfetch_resp, **response_kw):
+
+        if is_prod_appengine():
+            # Production GAE handles deflate encoding automatically, but does
+            # not remove the encoding header.
+            content_encoding = urlfetch_resp.headers.get('content-encoding')
+
+            if content_encoding == 'deflate':
+                del urlfetch_resp.headers['content-encoding']
+
+        transfer_encoding = urlfetch_resp.headers.get('transfer-encoding')
+        # We have a full response's content,
+        # so let's make sure we don't report ourselves as chunked data.
+        if transfer_encoding == 'chunked':
+            encodings = transfer_encoding.split(",")
+            encodings.remove('chunked')
+            urlfetch_resp.headers['transfer-encoding'] = ','.join(encodings)
+
+        return HTTPResponse(
+            # In order for decoding to work, we must present the content as
+            # a file-like object.
+            body=BytesIO(urlfetch_resp.content),
+            headers=urlfetch_resp.headers,
+            status=urlfetch_resp.status_code,
+            **response_kw
+        )
+
+    def _get_absolute_timeout(self, timeout):
+        if timeout is Timeout.DEFAULT_TIMEOUT:
+            return 5  # 5s is the default timeout for URLFetch.
+        if isinstance(timeout, Timeout):
+            if timeout._read is not timeout._connect:
+                warnings.warn(
+                    "URLFetch does not support granular timeout settings, "
+                    "reverting to total timeout.", AppEnginePlatformWarning)
+            return timeout.total
+        return timeout
+
+    def _get_retries(self, retries, redirect):
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(
+                retries, redirect=redirect, default=self.retries)
+
+        if retries.connect or retries.read or retries.redirect:
+            warnings.warn(
+                "URLFetch only supports total retries and does not "
+                "recognize connect, read, or redirect retry parameters.",
+                AppEnginePlatformWarning)
+
+        return retries
+
+
+def is_appengine():
+    return (is_local_appengine() or
+            is_prod_appengine() or
+            is_prod_appengine_mvms())
+
+
+def is_appengine_sandbox():
+    return is_appengine() and not is_prod_appengine_mvms()
+
+
+def is_local_appengine():
+    return ('APPENGINE_RUNTIME' in os.environ and
+            'Development/' in os.environ['SERVER_SOFTWARE'])
+
+
+def is_prod_appengine():
+    return ('APPENGINE_RUNTIME' in os.environ and
+            'Google App Engine/' in os.environ['SERVER_SOFTWARE'] and
+            not is_prod_appengine_mvms())
+
+
+def is_prod_appengine_mvms():
+    return os.environ.get('GAE_VM', False) == 'true'
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py
new file mode 100644
index 0000000..11d0b5c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py
@@ -0,0 +1,115 @@
+"""
+NTLM authenticating pool, contributed by erikcederstran
+
+Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
+"""
+from __future__ import absolute_import
+
+try:
+    from http.client import HTTPSConnection
+except ImportError:
+    from httplib import HTTPSConnection
+from logging import getLogger
+from ntlm import ntlm
+
+from urllib3 import HTTPSConnectionPool
+
+
+log = getLogger(__name__)
+
+
+class NTLMConnectionPool(HTTPSConnectionPool):
+    """
+    Implements an NTLM authentication version of an urllib3 connection pool
+    """
+
+    scheme = 'https'
+
+    def __init__(self, user, pw, authurl, *args, **kwargs):
+        """
+        authurl is a random URL on the server that is protected by NTLM.
+        user is the Windows user, probably in the DOMAIN\\username format.
+        pw is the password for the user.
+        """
+        super(NTLMConnectionPool, self).__init__(*args, **kwargs)
+        self.authurl = authurl
+        self.rawuser = user
+        user_parts = user.split('\\', 1)
+        self.domain = user_parts[0].upper()
+        self.user = user_parts[1]
+        self.pw = pw
+
+    def _new_conn(self):
+        # Performs the NTLM handshake that secures the connection. The socket
+        # must be kept open while requests are performed.
+        self.num_connections += 1
+        log.debug('Starting NTLM HTTPS connection no. %d: https://%s%s',
+                  self.num_connections, self.host, self.authurl)
+
+        headers = {}
+        headers['Connection'] = 'Keep-Alive'
+        req_header = 'Authorization'
+        resp_header = 'www-authenticate'
+
+        conn = HTTPSConnection(host=self.host, port=self.port)
+
+        # Send negotiation message
+        headers[req_header] = (
+            'NTLM %s' % ntlm.create_NTLM_NEGOTIATE_MESSAGE(self.rawuser))
+        log.debug('Request headers: %s', headers)
+        conn.request('GET', self.authurl, None, headers)
+        res = conn.getresponse()
+        reshdr = dict(res.getheaders())
+        log.debug('Response status: %s %s', res.status, res.reason)
+        log.debug('Response headers: %s', reshdr)
+        log.debug('Response data: %s [...]', res.read(100))
+
+        # Remove the reference to the socket, so that it can not be closed by
+        # the response object (we want to keep the socket open)
+        res.fp = None
+
+        # Server should respond with a challenge message
+        auth_header_values = reshdr[resp_header].split(', ')
+        auth_header_value = None
+        for s in auth_header_values:
+            if s[:5] == 'NTLM ':
+                auth_header_value = s[5:]
+        if auth_header_value is None:
+            raise Exception('Unexpected %s response header: %s' %
+                            (resp_header, reshdr[resp_header]))
+
+        # Send authentication message
+        ServerChallenge, NegotiateFlags = \
+            ntlm.parse_NTLM_CHALLENGE_MESSAGE(auth_header_value)
+        auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(ServerChallenge,
+                                                         self.user,
+                                                         self.domain,
+                                                         self.pw,
+                                                         NegotiateFlags)
+        headers[req_header] = 'NTLM %s' % auth_msg
+        log.debug('Request headers: %s', headers)
+        conn.request('GET', self.authurl, None, headers)
+        res = conn.getresponse()
+        log.debug('Response status: %s %s', res.status, res.reason)
+        log.debug('Response headers: %s', dict(res.getheaders()))
+        log.debug('Response data: %s [...]', res.read()[:100])
+        if res.status != 200:
+            if res.status == 401:
+                raise Exception('Server rejected request: wrong '
+                                'username or password')
+            raise Exception('Wrong server response: %s %s' %
+                            (res.status, res.reason))
+
+        res.fp = None
+        log.debug('Connection established')
+        return conn
+
+    def urlopen(self, method, url, body=None, headers=None, retries=3,
+                redirect=True, assert_same_host=True):
+        if headers is None:
+            headers = {}
+        headers['Connection'] = 'Keep-Alive'
+        return super(NTLMConnectionPool, self).urlopen(method, url, body,
+                                                       headers, retries,
+                                                       redirect,
+                                                       assert_same_host)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py
new file mode 100644
index 0000000..ed3b9cc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py
@@ -0,0 +1,358 @@
+'''SSL with SNI_-support for Python 2. Follow these instructions if you would
+like to verify SSL certificates in Python 2. Note, the default libraries do
+*not* do certificate checking; you need to do additional work to validate
+certificates yourself.
+
+This needs the following packages installed:
+
+* pyOpenSSL (tested with 0.13)
+* ndg-httpsclient (tested with 0.3.2)
+* pyasn1 (tested with 0.1.6)
+
+You can install them with the following command:
+
+    pip install pyopenssl ndg-httpsclient pyasn1
+
+To activate certificate checking, call
+:func:`~urllib3.contrib.pyopenssl.inject_into_urllib3` from your Python code
+before you begin making HTTP requests. This can be done in a ``sitecustomize``
+module, or at any other time before your application begins using ``urllib3``,
+like this::
+
+    try:
+        import urllib3.contrib.pyopenssl
+        urllib3.contrib.pyopenssl.inject_into_urllib3()
+    except ImportError:
+        pass
+
+Now you can use :mod:`urllib3` as you normally would, and it will support SNI
+when the required modules are installed.
+
+Activating this module also has the positive side effect of disabling SSL/TLS
+compression in Python 2 (see `CRIME attack`_).
+
+If you want to configure the default list of supported cipher suites, you can
+set the ``urllib3.contrib.pyopenssl.DEFAULT_SSL_CIPHER_LIST`` variable.
+
+Module Variables
+----------------
+
+:var DEFAULT_SSL_CIPHER_LIST: The list of supported SSL/TLS cipher suites.
+
+.. _sni: https://en.wikipedia.org/wiki/Server_Name_Indication
+.. _crime attack: https://en.wikipedia.org/wiki/CRIME_(security_exploit)
+
+'''
+from __future__ import absolute_import
+
+try:
+    from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
+    from ndg.httpsclient.subj_alt_name import SubjectAltName as BaseSubjectAltName
+except SyntaxError as e:
+    raise ImportError(e)
+
+import OpenSSL.SSL
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.type import univ, constraint
+from socket import timeout, error as SocketError
+
+try:  # Platform-specific: Python 2
+    from socket import _fileobject
+except ImportError:  # Platform-specific: Python 3
+    _fileobject = None
+    from urllib3.packages.backports.makefile import backport_makefile
+
+import ssl
+import select
+import six
+
+from .. import connection
+from .. import util
+
+__all__ = ['inject_into_urllib3', 'extract_from_urllib3']
+
+# SNI only *really* works if we can read the subjectAltName of certificates.
+HAS_SNI = SUBJ_ALT_NAME_SUPPORT
+
+# Map from urllib3 to PyOpenSSL compatible parameter-values.
+_openssl_versions = {
+    ssl.PROTOCOL_SSLv23: OpenSSL.SSL.SSLv23_METHOD,
+    ssl.PROTOCOL_TLSv1: OpenSSL.SSL.TLSv1_METHOD,
+}
+
+if hasattr(ssl, 'PROTOCOL_TLSv1_1') and hasattr(OpenSSL.SSL, 'TLSv1_1_METHOD'):
+    _openssl_versions[ssl.PROTOCOL_TLSv1_1] = OpenSSL.SSL.TLSv1_1_METHOD
+
+if hasattr(ssl, 'PROTOCOL_TLSv1_2') and hasattr(OpenSSL.SSL, 'TLSv1_2_METHOD'):
+    _openssl_versions[ssl.PROTOCOL_TLSv1_2] = OpenSSL.SSL.TLSv1_2_METHOD
+
+try:
+    _openssl_versions.update({ssl.PROTOCOL_SSLv3: OpenSSL.SSL.SSLv3_METHOD})
+except AttributeError:
+    pass
+
+_openssl_verify = {
+    ssl.CERT_NONE: OpenSSL.SSL.VERIFY_NONE,
+    ssl.CERT_OPTIONAL: OpenSSL.SSL.VERIFY_PEER,
+    ssl.CERT_REQUIRED:
+        OpenSSL.SSL.VERIFY_PEER + OpenSSL.SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
+}
+
+DEFAULT_SSL_CIPHER_LIST = util.ssl_.DEFAULT_CIPHERS.encode('ascii')
+
+# OpenSSL will only write 16K at a time
+SSL_WRITE_BLOCKSIZE = 16384
+
+orig_util_HAS_SNI = util.HAS_SNI
+orig_connection_ssl_wrap_socket = connection.ssl_wrap_socket
+
+
+def inject_into_urllib3():
+    'Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.'
+
+    connection.ssl_wrap_socket = ssl_wrap_socket
+    util.HAS_SNI = HAS_SNI
+    util.IS_PYOPENSSL = True
+
+
+def extract_from_urllib3():
+    'Undo monkey-patching by :func:`inject_into_urllib3`.'
+
+    connection.ssl_wrap_socket = orig_connection_ssl_wrap_socket
+    util.HAS_SNI = orig_util_HAS_SNI
+    util.IS_PYOPENSSL = False
+
+
+# Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
+class SubjectAltName(BaseSubjectAltName):
+    '''ASN.1 implementation for subjectAltNames support'''
+
+    # There is no limit to how many SAN certificates a certificate may have,
+    #   however this needs to have some limit so we'll set an arbitrarily high
+    #   limit.
+    sizeSpec = univ.SequenceOf.sizeSpec + \
+        constraint.ValueSizeConstraint(1, 1024)
+
+
+# Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
+def get_subj_alt_name(peer_cert):
+    # Search through extensions
+    dns_name = []
+    if not SUBJ_ALT_NAME_SUPPORT:
+        return dns_name
+
+    general_names = SubjectAltName()
+    for i in range(peer_cert.get_extension_count()):
+        ext = peer_cert.get_extension(i)
+        ext_name = ext.get_short_name()
+        if ext_name != b'subjectAltName':
+            continue
+
+        # PyOpenSSL returns extension data in ASN.1 encoded form
+        ext_dat = ext.get_data()
+        decoded_dat = der_decoder.decode(ext_dat,
+                                         asn1Spec=general_names)
+
+        for name in decoded_dat:
+            if not isinstance(name, SubjectAltName):
+                continue
+            for entry in range(len(name)):
+                component = name.getComponentByPosition(entry)
+                if component.getName() != 'dNSName':
+                    continue
+                dns_name.append(str(component.getComponent()))
+
+    return dns_name
+
+
+class WrappedSocket(object):
+    '''API-compatibility wrapper for Python OpenSSL's Connection-class.
+
+    Note: _makefile_refs, _drop() and _reuse() are needed for the garbage
+    collector of pypy.
+    '''
+
+    def __init__(self, connection, socket, suppress_ragged_eofs=True):
+        self.connection = connection
+        self.socket = socket
+        self.suppress_ragged_eofs = suppress_ragged_eofs
+        self._makefile_refs = 0
+        self._closed = False
+
+    def fileno(self):
+        return self.socket.fileno()
+
+    # Copy-pasted from Python 3.5 source code
+    def _decref_socketios(self):
+        if self._makefile_refs > 0:
+            self._makefile_refs -= 1
+        if self._closed:
+            self.close()
+
+    def recv(self, *args, **kwargs):
+        try:
+            data = self.connection.recv(*args, **kwargs)
+        except OpenSSL.SSL.SysCallError as e:
+            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
+                return b''
+            else:
+                raise SocketError(str(e))
+        except OpenSSL.SSL.ZeroReturnError as e:
+            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
+                return b''
+            else:
+                raise
+        except OpenSSL.SSL.WantReadError:
+            rd, wd, ed = select.select(
+                [self.socket], [], [], self.socket.gettimeout())
+            if not rd:
+                raise timeout('The read operation timed out')
+            else:
+                return self.recv(*args, **kwargs)
+        else:
+            return data
+
+    def recv_into(self, *args, **kwargs):
+        try:
+            return self.connection.recv_into(*args, **kwargs)
+        except OpenSSL.SSL.SysCallError as e:
+            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
+                return 0
+            else:
+                raise SocketError(str(e))
+        except OpenSSL.SSL.ZeroReturnError as e:
+            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
+                return 0
+            else:
+                raise
+        except OpenSSL.SSL.WantReadError:
+            rd, wd, ed = select.select(
+                [self.socket], [], [], self.socket.gettimeout())
+            if not rd:
+                raise timeout('The read operation timed out')
+            else:
+                return self.recv_into(*args, **kwargs)
+
+    def settimeout(self, timeout):
+        return self.socket.settimeout(timeout)
+
+    def _send_until_done(self, data):
+        while True:
+            try:
+                return self.connection.send(data)
+            except OpenSSL.SSL.WantWriteError:
+                _, wlist, _ = select.select([], [self.socket], [],
+                                            self.socket.gettimeout())
+                if not wlist:
+                    raise timeout()
+                continue
+
+    def sendall(self, data):
+        total_sent = 0
+        while total_sent < len(data):
+            sent = self._send_until_done(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
+            total_sent += sent
+
+    def shutdown(self):
+        # FIXME rethrow compatible exceptions should we ever use this
+        self.connection.shutdown()
+
+    def close(self):
+        if self._makefile_refs < 1:
+            try:
+                self._closed = True
+                return self.connection.close()
+            except OpenSSL.SSL.Error:
+                return
+        else:
+            self._makefile_refs -= 1
+
+    def getpeercert(self, binary_form=False):
+        x509 = self.connection.get_peer_certificate()
+
+        if not x509:
+            return x509
+
+        if binary_form:
+            return OpenSSL.crypto.dump_certificate(
+                OpenSSL.crypto.FILETYPE_ASN1,
+                x509)
+
+        return {
+            'subject': (
+                (('commonName', x509.get_subject().CN),),
+            ),
+            'subjectAltName': [
+                ('DNS', value)
+                for value in get_subj_alt_name(x509)
+            ]
+        }
+
+    def _reuse(self):
+        self._makefile_refs += 1
+
+    def _drop(self):
+        if self._makefile_refs < 1:
+            self.close()
+        else:
+            self._makefile_refs -= 1
+
+
+if _fileobject:  # Platform-specific: Python 2
+    def makefile(self, mode, bufsize=-1):
+        self._makefile_refs += 1
+        return _fileobject(self, mode, bufsize, close=True)
+else:  # Platform-specific: Python 3
+    makefile = backport_makefile
+
+WrappedSocket.makefile = makefile
+
+
+def _verify_callback(cnx, x509, err_no, err_depth, return_code):
+    return err_no == 0
+
+
+def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
+                    ca_certs=None, server_hostname=None,
+                    ssl_version=None, ca_cert_dir=None):
+    ctx = OpenSSL.SSL.Context(_openssl_versions[ssl_version])
+    if certfile:
+        keyfile = keyfile or certfile  # Match behaviour of the normal python ssl library
+        ctx.use_certificate_file(certfile)
+    if keyfile:
+        ctx.use_privatekey_file(keyfile)
+    if cert_reqs != ssl.CERT_NONE:
+        ctx.set_verify(_openssl_verify[cert_reqs], _verify_callback)
+    if ca_certs or ca_cert_dir:
+        try:
+            ctx.load_verify_locations(ca_certs, ca_cert_dir)
+        except OpenSSL.SSL.Error as e:
+            raise ssl.SSLError('bad ca_certs: %r' % ca_certs, e)
+    else:
+        ctx.set_default_verify_paths()
+
+    # Disable TLS compression to mitigate CRIME attack (issue #309)
+    OP_NO_COMPRESSION = 0x20000
+    ctx.set_options(OP_NO_COMPRESSION)
+
+    # Set list of supported ciphersuites.
+    ctx.set_cipher_list(DEFAULT_SSL_CIPHER_LIST)
+
+    cnx = OpenSSL.SSL.Connection(ctx, sock)
+    if isinstance(server_hostname, six.text_type):  # Platform-specific: Python 3
+        server_hostname = server_hostname.encode('utf-8')
+    cnx.set_tlsext_host_name(server_hostname)
+    cnx.set_connect_state()
+    while True:
+        try:
+            cnx.do_handshake()
+        except OpenSSL.SSL.WantReadError:
+            rd, _, _ = select.select([sock], [], [], sock.gettimeout())
+            if not rd:
+                raise timeout('select timed out')
+            continue
+        except OpenSSL.SSL.Error as e:
+            raise ssl.SSLError('bad handshake: %r' % e)
+        break
+
+    return WrappedSocket(cnx, sock)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py
new file mode 100644
index 0000000..81970fa
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py
@@ -0,0 +1,172 @@
+# -*- coding: utf-8 -*-
+"""
+SOCKS support for urllib3
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This contrib module contains provisional support for SOCKS proxies from within
+urllib3. This module supports SOCKS4 (specifically the SOCKS4A variant) and
+SOCKS5. To enable its functionality, either install PySocks or install this
+module with the ``socks`` extra.
+
+Known Limitations:
+
+- Currently PySocks does not support contacting remote websites via literal
+  IPv6 addresses. Any such connection attempt will fail.
+- Currently PySocks does not support IPv6 connections to the SOCKS proxy. Any
+  such connection attempt will fail.
+"""
+from __future__ import absolute_import
+
+try:
+    import socks
+except ImportError:
+    import warnings
+    from ..exceptions import DependencyWarning
+
+    warnings.warn((
+        'SOCKS support in urllib3 requires the installation of optional '
+        'dependencies: specifically, PySocks.  For more information, see '
+        'https://urllib3.readthedocs.io/en/latest/contrib.html#socks-proxies'
+        ),
+        DependencyWarning
+    )
+    raise
+
+from socket import error as SocketError, timeout as SocketTimeout
+
+from ..connection import (
+    HTTPConnection, HTTPSConnection
+)
+from ..connectionpool import (
+    HTTPConnectionPool, HTTPSConnectionPool
+)
+from ..exceptions import ConnectTimeoutError, NewConnectionError
+from ..poolmanager import PoolManager
+from ..util.url import parse_url
+
+try:
+    import ssl
+except ImportError:
+    ssl = None
+
+
+class SOCKSConnection(HTTPConnection):
+    """
+    A plain-text HTTP connection that connects via a SOCKS proxy.
+    """
+    def __init__(self, *args, **kwargs):
+        self._socks_options = kwargs.pop('_socks_options')
+        super(SOCKSConnection, self).__init__(*args, **kwargs)
+
+    def _new_conn(self):
+        """
+        Establish a new connection via the SOCKS proxy.
+        """
+        extra_kw = {}
+        if self.source_address:
+            extra_kw['source_address'] = self.source_address
+
+        if self.socket_options:
+            extra_kw['socket_options'] = self.socket_options
+
+        try:
+            conn = socks.create_connection(
+                (self.host, self.port),
+                proxy_type=self._socks_options['socks_version'],
+                proxy_addr=self._socks_options['proxy_host'],
+                proxy_port=self._socks_options['proxy_port'],
+                proxy_username=self._socks_options['username'],
+                proxy_password=self._socks_options['password'],
+                timeout=self.timeout,
+                **extra_kw
+            )
+
+        except SocketTimeout as e:
+            raise ConnectTimeoutError(
+                self, "Connection to %s timed out. (connect timeout=%s)" %
+                (self.host, self.timeout))
+
+        except socks.ProxyError as e:
+            # This is fragile as hell, but it seems to be the only way to raise
+            # useful errors here.
+            if e.socket_err:
+                error = e.socket_err
+                if isinstance(error, SocketTimeout):
+                    raise ConnectTimeoutError(
+                        self,
+                        "Connection to %s timed out. (connect timeout=%s)" %
+                        (self.host, self.timeout)
+                    )
+                else:
+                    raise NewConnectionError(
+                        self,
+                        "Failed to establish a new connection: %s" % error
+                    )
+            else:
+                raise NewConnectionError(
+                    self,
+                    "Failed to establish a new connection: %s" % e
+                )
+
+        except SocketError as e:  # Defensive: PySocks should catch all these.
+            raise NewConnectionError(
+                self, "Failed to establish a new connection: %s" % e)
+
+        return conn
+
+
+# We don't need to duplicate the Verified/Unverified distinction from
+# urllib3/connection.py here because the HTTPSConnection will already have been
+# correctly set to either the Verified or Unverified form by that module. This
+# means the SOCKSHTTPSConnection will automatically be the correct type.
+class SOCKSHTTPSConnection(SOCKSConnection, HTTPSConnection):
+    pass
+
+
+class SOCKSHTTPConnectionPool(HTTPConnectionPool):
+    ConnectionCls = SOCKSConnection
+
+
+class SOCKSHTTPSConnectionPool(HTTPSConnectionPool):
+    ConnectionCls = SOCKSHTTPSConnection
+
+
+class SOCKSProxyManager(PoolManager):
+    """
+    A version of the urllib3 ProxyManager that routes connections via the
+    defined SOCKS proxy.
+    """
+    pool_classes_by_scheme = {
+        'http': SOCKSHTTPConnectionPool,
+        'https': SOCKSHTTPSConnectionPool,
+    }
+
+    def __init__(self, proxy_url, username=None, password=None,
+                 num_pools=10, headers=None, **connection_pool_kw):
+        parsed = parse_url(proxy_url)
+
+        if parsed.scheme == 'socks5':
+            socks_version = socks.PROXY_TYPE_SOCKS5
+        elif parsed.scheme == 'socks4':
+            socks_version = socks.PROXY_TYPE_SOCKS4
+        else:
+            raise ValueError(
+                "Unable to determine SOCKS version from %s" % proxy_url
+            )
+
+        self.proxy_url = proxy_url
+
+        socks_options = {
+            'socks_version': socks_version,
+            'proxy_host': parsed.host,
+            'proxy_port': parsed.port,
+            'username': username,
+            'password': password,
+        }
+        connection_pool_kw['_socks_options'] = socks_options
+
+        super(SOCKSProxyManager, self).__init__(
+            num_pools, headers, **connection_pool_kw
+        )
+
+        self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py
new file mode 100644
index 0000000..f2e6591
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py
@@ -0,0 +1,209 @@
+from __future__ import absolute_import
+# Base Exceptions
+
+
+class HTTPError(Exception):
+    "Base exception used by this module."
+    pass
+
+
+class HTTPWarning(Warning):
+    "Base warning used by this module."
+    pass
+
+
+class PoolError(HTTPError):
+    "Base exception for errors caused within a pool."
+    def __init__(self, pool, message):
+        self.pool = pool
+        HTTPError.__init__(self, "%s: %s" % (pool, message))
+
+    def __reduce__(self):
+        # For pickling purposes.
+        return self.__class__, (None, None)
+
+
+class RequestError(PoolError):
+    "Base exception for PoolErrors that have associated URLs."
+    def __init__(self, pool, url, message):
+        self.url = url
+        PoolError.__init__(self, pool, message)
+
+    def __reduce__(self):
+        # For pickling purposes.
+        return self.__class__, (None, self.url, None)
+
+
+class SSLError(HTTPError):
+    "Raised when SSL certificate fails in an HTTPS connection."
+    pass
+
+
+class ProxyError(HTTPError):
+    "Raised when the connection to a proxy fails."
+    pass
+
+
+class DecodeError(HTTPError):
+    "Raised when automatic decoding based on Content-Type fails."
+    pass
+
+
+class ProtocolError(HTTPError):
+    "Raised when something unexpected happens mid-request/response."
+    pass
+
+
+#: Renamed to ProtocolError but aliased for backwards compatibility.
+ConnectionError = ProtocolError
+
+
+# Leaf Exceptions
+
+class MaxRetryError(RequestError):
+    """Raised when the maximum number of retries is exceeded.
+
+    :param pool: The connection pool
+    :type pool: :class:`~urllib3.connectionpool.HTTPConnectionPool`
+    :param string url: The requested Url
+    :param exceptions.Exception reason: The underlying error
+
+    """
+
+    def __init__(self, pool, url, reason=None):
+        self.reason = reason
+
+        message = "Max retries exceeded with url: %s (Caused by %r)" % (
+            url, reason)
+
+        RequestError.__init__(self, pool, url, message)
+
+
+class HostChangedError(RequestError):
+    "Raised when an existing pool gets a request for a foreign host."
+
+    def __init__(self, pool, url, retries=3):
+        message = "Tried to open a foreign host with url: %s" % url
+        RequestError.__init__(self, pool, url, message)
+        self.retries = retries
+
+
+class TimeoutStateError(HTTPError):
+    """ Raised when passing an invalid state to a timeout """
+    pass
+
+
+class TimeoutError(HTTPError):
+    """ Raised when a socket timeout error occurs.
+
+    Catching this error will catch both :exc:`ReadTimeoutErrors
+    <ReadTimeoutError>` and :exc:`ConnectTimeoutErrors <ConnectTimeoutError>`.
+    """
+    pass
+
+
+class ReadTimeoutError(TimeoutError, RequestError):
+    "Raised when a socket timeout occurs while receiving data from a server"
+    pass
+
+
+# This timeout error does not have a URL attached and needs to inherit from the
+# base HTTPError
+class ConnectTimeoutError(TimeoutError):
+    "Raised when a socket timeout occurs while connecting to a server"
+    pass
+
+
+class NewConnectionError(ConnectTimeoutError, PoolError):
+    "Raised when we fail to establish a new connection. Usually ECONNREFUSED."
+    pass
+
+
+class EmptyPoolError(PoolError):
+    "Raised when a pool runs out of connections and no more are allowed."
+    pass
+
+
+class ClosedPoolError(PoolError):
+    "Raised when a request enters a pool after the pool has been closed."
+    pass
+
+
+class LocationValueError(ValueError, HTTPError):
+    "Raised when there is something wrong with a given URL input."
+    pass
+
+
+class LocationParseError(LocationValueError):
+    "Raised when get_host or similar fails to parse the URL input."
+
+    def __init__(self, location):
+        message = "Failed to parse: %s" % location
+        HTTPError.__init__(self, message)
+
+        self.location = location
+
+
+class ResponseError(HTTPError):
+    "Used as a container for an error reason supplied in a MaxRetryError."
+    GENERIC_ERROR = 'too many error responses'
+    SPECIFIC_ERROR = 'too many {status_code} error responses'
+
+
+class SecurityWarning(HTTPWarning):
+    "Warned when perfoming security reducing actions"
+    pass
+
+
+class SubjectAltNameWarning(SecurityWarning):
+    "Warned when connecting to a host with a certificate missing a SAN."
+    pass
+
+
+class InsecureRequestWarning(SecurityWarning):
+    "Warned when making an unverified HTTPS request."
+    pass
+
+
+class SystemTimeWarning(SecurityWarning):
+    "Warned when system time is suspected to be wrong"
+    pass
+
+
+class InsecurePlatformWarning(SecurityWarning):
+    "Warned when certain SSL configuration is not available on a platform."
+    pass
+
+
+class SNIMissingWarning(HTTPWarning):
+    "Warned when making a HTTPS request without SNI available."
+    pass
+
+
+class DependencyWarning(HTTPWarning):
+    """
+    Warned when an attempt is made to import a module with missing optional
+    dependencies.
+    """
+    pass
+
+
+class ResponseNotChunked(ProtocolError, ValueError):
+    "Response needs to be chunked in order to read it as chunks."
+    pass
+
+
+class ProxySchemeUnknown(AssertionError, ValueError):
+    "ProxyManager does not support the supplied scheme"
+    # TODO(t-8ch): Stop inheriting from AssertionError in v2.0.
+
+    def __init__(self, scheme):
+        message = "Not supported proxy scheme %s" % scheme
+        super(ProxySchemeUnknown, self).__init__(message)
+
+
+class HeaderParsingError(HTTPError):
+    "Raised by assert_header_parsing, but we convert it to a log.warning statement."
+    def __init__(self, defects, unparsed_data):
+        message = '%s, unparsed data: %r' % (defects or 'Unknown', unparsed_data)
+        super(HeaderParsingError, self).__init__(message)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py
new file mode 100644
index 0000000..8fa2a12
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py
@@ -0,0 +1,178 @@
+from __future__ import absolute_import
+import email.utils
+import mimetypes
+
+from .packages import six
+
+
+def guess_content_type(filename, default='application/octet-stream'):
+    """
+    Guess the "Content-Type" of a file.
+
+    :param filename:
+        The filename to guess the "Content-Type" of using :mod:`mimetypes`.
+    :param default:
+        If no "Content-Type" can be guessed, default to `default`.
+    """
+    if filename:
+        return mimetypes.guess_type(filename)[0] or default
+    return default
+
+
+def format_header_param(name, value):
+    """
+    Helper function to format and quote a single header parameter.
+
+    Particularly useful for header parameters which might contain
+    non-ASCII values, like file names. This follows RFC 2231, as
+    suggested by RFC 2388 Section 4.4.
+
+    :param name:
+        The name of the parameter, a string expected to be ASCII only.
+    :param value:
+        The value of the parameter, provided as a unicode string.
+    """
+    if not any(ch in value for ch in '"\\\r\n'):
+        result = '%s="%s"' % (name, value)
+        try:
+            result.encode('ascii')
+        except (UnicodeEncodeError, UnicodeDecodeError):
+            pass
+        else:
+            return result
+    if not six.PY3 and isinstance(value, six.text_type):  # Python 2:
+        value = value.encode('utf-8')
+    value = email.utils.encode_rfc2231(value, 'utf-8')
+    value = '%s*=%s' % (name, value)
+    return value
+
+
+class RequestField(object):
+    """
+    A data container for request body parameters.
+
+    :param name:
+        The name of this request field.
+    :param data:
+        The data/value body.
+    :param filename:
+        An optional filename of the request field.
+    :param headers:
+        An optional dict-like object of headers to initially use for the field.
+    """
+    def __init__(self, name, data, filename=None, headers=None):
+        self._name = name
+        self._filename = filename
+        self.data = data
+        self.headers = {}
+        if headers:
+            self.headers = dict(headers)
+
+    @classmethod
+    def from_tuples(cls, fieldname, value):
+        """
+        A :class:`~urllib3.fields.RequestField` factory from old-style tuple parameters.
+
+        Supports constructing :class:`~urllib3.fields.RequestField` from
+        parameter of key/value strings AND key/filetuple. A filetuple is a
+        (filename, data, MIME type) tuple where the MIME type is optional.
+        For example::
+
+            'foo': 'bar',
+            'fakefile': ('foofile.txt', 'contents of foofile'),
+            'realfile': ('barfile.txt', open('realfile').read()),
+            'typedfile': ('bazfile.bin', open('bazfile').read(), 'image/jpeg'),
+            'nonamefile': 'contents of nonamefile field',
+
+        Field names and filenames must be unicode.
+        """
+        if isinstance(value, tuple):
+            if len(value) == 3:
+                filename, data, content_type = value
+            else:
+                filename, data = value
+                content_type = guess_content_type(filename)
+        else:
+            filename = None
+            content_type = None
+            data = value
+
+        request_param = cls(fieldname, data, filename=filename)
+        request_param.make_multipart(content_type=content_type)
+
+        return request_param
+
+    def _render_part(self, name, value):
+        """
+        Overridable helper function to format a single header parameter.
+
+        :param name:
+            The name of the parameter, a string expected to be ASCII only.
+        :param value:
+            The value of the parameter, provided as a unicode string.
+        """
+        return format_header_param(name, value)
+
+    def _render_parts(self, header_parts):
+        """
+        Helper function to format and quote a single header.
+
+        Useful for single headers that are composed of multiple items. E.g.,
+        'Content-Disposition' fields.
+
+        :param header_parts:
+            A sequence of (k, v) typles or a :class:`dict` of (k, v) to format
+            as `k1="v1"; k2="v2"; ...`.
+        """
+        parts = []
+        iterable = header_parts
+        if isinstance(header_parts, dict):
+            iterable = header_parts.items()
+
+        for name, value in iterable:
+            if value:
+                parts.append(self._render_part(name, value))
+
+        return '; '.join(parts)
+
+    def render_headers(self):
+        """
+        Renders the headers for this request field.
+        """
+        lines = []
+
+        sort_keys = ['Content-Disposition', 'Content-Type', 'Content-Location']
+        for sort_key in sort_keys:
+            if self.headers.get(sort_key, False):
+                lines.append('%s: %s' % (sort_key, self.headers[sort_key]))
+
+        for header_name, header_value in self.headers.items():
+            if header_name not in sort_keys:
+                if header_value:
+                    lines.append('%s: %s' % (header_name, header_value))
+
+        lines.append('\r\n')
+        return '\r\n'.join(lines)
+
+    def make_multipart(self, content_disposition=None, content_type=None,
+                       content_location=None):
+        """
+        Makes this request field into a multipart request field.
+
+        This method overrides "Content-Disposition", "Content-Type" and
+        "Content-Location" headers to the request parameter.
+
+        :param content_type:
+            The 'Content-Type' of the request body.
+        :param content_location:
+            The 'Content-Location' of the request body.
+
+        """
+        self.headers['Content-Disposition'] = content_disposition or 'form-data'
+        self.headers['Content-Disposition'] += '; '.join([
+            '', self._render_parts(
+                (('name', self._name), ('filename', self._filename))
+            )
+        ])
+        self.headers['Content-Type'] = content_type
+        self.headers['Content-Location'] = content_location
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py
new file mode 100644
index 0000000..97a2843
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py
@@ -0,0 +1,94 @@
+from __future__ import absolute_import
+import codecs
+
+from uuid import uuid4
+from io import BytesIO
+
+from .packages import six
+from .packages.six import b
+from .fields import RequestField
+
+writer = codecs.lookup('utf-8')[3]
+
+
+def choose_boundary():
+    """
+    Our embarassingly-simple replacement for mimetools.choose_boundary.
+    """
+    return uuid4().hex
+
+
+def iter_field_objects(fields):
+    """
+    Iterate over fields.
+
+    Supports list of (k, v) tuples and dicts, and lists of
+    :class:`~urllib3.fields.RequestField`.
+
+    """
+    if isinstance(fields, dict):
+        i = six.iteritems(fields)
+    else:
+        i = iter(fields)
+
+    for field in i:
+        if isinstance(field, RequestField):
+            yield field
+        else:
+            yield RequestField.from_tuples(*field)
+
+
+def iter_fields(fields):
+    """
+    .. deprecated:: 1.6
+
+    Iterate over fields.
+
+    The addition of :class:`~urllib3.fields.RequestField` makes this function
+    obsolete. Instead, use :func:`iter_field_objects`, which returns
+    :class:`~urllib3.fields.RequestField` objects.
+
+    Supports list of (k, v) tuples and dicts.
+    """
+    if isinstance(fields, dict):
+        return ((k, v) for k, v in six.iteritems(fields))
+
+    return ((k, v) for k, v in fields)
+
+
+def encode_multipart_formdata(fields, boundary=None):
+    """
+    Encode a dictionary of ``fields`` using the multipart/form-data MIME format.
+
+    :param fields:
+        Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`).
+
+    :param boundary:
+        If not specified, then a random boundary will be generated using
+        :func:`mimetools.choose_boundary`.
+    """
+    body = BytesIO()
+    if boundary is None:
+        boundary = choose_boundary()
+
+    for field in iter_field_objects(fields):
+        body.write(b('--%s\r\n' % (boundary)))
+
+        writer(body).write(field.render_headers())
+        data = field.data
+
+        if isinstance(data, int):
+            data = str(data)  # Backwards compatibility
+
+        if isinstance(data, six.text_type):
+            writer(body).write(data)
+        else:
+            body.write(data)
+
+        body.write(b'\r\n')
+
+    body.write(b('--%s--\r\n' % (boundary)))
+
+    content_type = str('multipart/form-data; boundary=%s' % boundary)
+
+    return body.getvalue(), content_type
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py
new file mode 100644
index 0000000..170e974
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py
@@ -0,0 +1,5 @@
+from __future__ import absolute_import
+
+from . import ssl_match_hostname
+
+__all__ = ('ssl_match_hostname', )
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/ordered_dict.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/ordered_dict.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/six.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/six.cpython-35.pyc
new file mode 100644
index 0000000..beb000a
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py
new file mode 100644
index 0000000..4479363
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py
@@ -0,0 +1,259 @@
+# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
+# Passes Python2.7's test suite and incorporates all the latest updates.
+# Copyright 2009 Raymond Hettinger, released under the MIT License.
+# http://code.activestate.com/recipes/576693/
+try:
+    from thread import get_ident as _get_ident
+except ImportError:
+    from dummy_thread import get_ident as _get_ident
+
+try:
+    from _abcoll import KeysView, ValuesView, ItemsView
+except ImportError:
+    pass
+
+
+class OrderedDict(dict):
+    'Dictionary that remembers insertion order'
+    # An inherited dict maps keys to values.
+    # The inherited dict provides __getitem__, __len__, __contains__, and get.
+    # The remaining methods are order-aware.
+    # Big-O running times for all methods are the same as for regular dictionaries.
+
+    # The internal self.__map dictionary maps keys to links in a doubly linked list.
+    # The circular doubly linked list starts and ends with a sentinel element.
+    # The sentinel element never gets deleted (this simplifies the algorithm).
+    # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
+
+    def __init__(self, *args, **kwds):
+        '''Initialize an ordered dictionary.  Signature is the same as for
+        regular dictionaries, but keyword arguments are not recommended
+        because their insertion order is arbitrary.
+
+        '''
+        if len(args) > 1:
+            raise TypeError('expected at most 1 arguments, got %d' % len(args))
+        try:
+            self.__root
+        except AttributeError:
+            self.__root = root = []                     # sentinel node
+            root[:] = [root, root, None]
+            self.__map = {}
+        self.__update(*args, **kwds)
+
+    def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
+        'od.__setitem__(i, y) <==> od[i]=y'
+        # Setting a new item creates a new link which goes at the end of the linked
+        # list, and the inherited dictionary is updated with the new key/value pair.
+        if key not in self:
+            root = self.__root
+            last = root[0]
+            last[1] = root[0] = self.__map[key] = [last, root, key]
+        dict_setitem(self, key, value)
+
+    def __delitem__(self, key, dict_delitem=dict.__delitem__):
+        'od.__delitem__(y) <==> del od[y]'
+        # Deleting an existing item uses self.__map to find the link which is
+        # then removed by updating the links in the predecessor and successor nodes.
+        dict_delitem(self, key)
+        link_prev, link_next, key = self.__map.pop(key)
+        link_prev[1] = link_next
+        link_next[0] = link_prev
+
+    def __iter__(self):
+        'od.__iter__() <==> iter(od)'
+        root = self.__root
+        curr = root[1]
+        while curr is not root:
+            yield curr[2]
+            curr = curr[1]
+
+    def __reversed__(self):
+        'od.__reversed__() <==> reversed(od)'
+        root = self.__root
+        curr = root[0]
+        while curr is not root:
+            yield curr[2]
+            curr = curr[0]
+
+    def clear(self):
+        'od.clear() -> None.  Remove all items from od.'
+        try:
+            for node in self.__map.itervalues():
+                del node[:]
+            root = self.__root
+            root[:] = [root, root, None]
+            self.__map.clear()
+        except AttributeError:
+            pass
+        dict.clear(self)
+
+    def popitem(self, last=True):
+        '''od.popitem() -> (k, v), return and remove a (key, value) pair.
+        Pairs are returned in LIFO order if last is true or FIFO order if false.
+
+        '''
+        if not self:
+            raise KeyError('dictionary is empty')
+        root = self.__root
+        if last:
+            link = root[0]
+            link_prev = link[0]
+            link_prev[1] = root
+            root[0] = link_prev
+        else:
+            link = root[1]
+            link_next = link[1]
+            root[1] = link_next
+            link_next[0] = root
+        key = link[2]
+        del self.__map[key]
+        value = dict.pop(self, key)
+        return key, value
+
+    # -- the following methods do not depend on the internal structure --
+
+    def keys(self):
+        'od.keys() -> list of keys in od'
+        return list(self)
+
+    def values(self):
+        'od.values() -> list of values in od'
+        return [self[key] for key in self]
+
+    def items(self):
+        'od.items() -> list of (key, value) pairs in od'
+        return [(key, self[key]) for key in self]
+
+    def iterkeys(self):
+        'od.iterkeys() -> an iterator over the keys in od'
+        return iter(self)
+
+    def itervalues(self):
+        'od.itervalues -> an iterator over the values in od'
+        for k in self:
+            yield self[k]
+
+    def iteritems(self):
+        'od.iteritems -> an iterator over the (key, value) items in od'
+        for k in self:
+            yield (k, self[k])
+
+    def update(*args, **kwds):
+        '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
+
+        If E is a dict instance, does:           for k in E: od[k] = E[k]
+        If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
+        Or if E is an iterable of items, does:   for k, v in E: od[k] = v
+        In either case, this is followed by:     for k, v in F.items(): od[k] = v
+
+        '''
+        if len(args) > 2:
+            raise TypeError('update() takes at most 2 positional '
+                            'arguments (%d given)' % (len(args),))
+        elif not args:
+            raise TypeError('update() takes at least 1 argument (0 given)')
+        self = args[0]
+        # Make progressively weaker assumptions about "other"
+        other = ()
+        if len(args) == 2:
+            other = args[1]
+        if isinstance(other, dict):
+            for key in other:
+                self[key] = other[key]
+        elif hasattr(other, 'keys'):
+            for key in other.keys():
+                self[key] = other[key]
+        else:
+            for key, value in other:
+                self[key] = value
+        for key, value in kwds.items():
+            self[key] = value
+
+    __update = update  # let subclasses override update without breaking __init__
+
+    __marker = object()
+
+    def pop(self, key, default=__marker):
+        '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+        If key is not found, d is returned if given, otherwise KeyError is raised.
+
+        '''
+        if key in self:
+            result = self[key]
+            del self[key]
+            return result
+        if default is self.__marker:
+            raise KeyError(key)
+        return default
+
+    def setdefault(self, key, default=None):
+        'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
+        if key in self:
+            return self[key]
+        self[key] = default
+        return default
+
+    def __repr__(self, _repr_running={}):
+        'od.__repr__() <==> repr(od)'
+        call_key = id(self), _get_ident()
+        if call_key in _repr_running:
+            return '...'
+        _repr_running[call_key] = 1
+        try:
+            if not self:
+                return '%s()' % (self.__class__.__name__,)
+            return '%s(%r)' % (self.__class__.__name__, self.items())
+        finally:
+            del _repr_running[call_key]
+
+    def __reduce__(self):
+        'Return state information for pickling'
+        items = [[k, self[k]] for k in self]
+        inst_dict = vars(self).copy()
+        for k in vars(OrderedDict()):
+            inst_dict.pop(k, None)
+        if inst_dict:
+            return (self.__class__, (items,), inst_dict)
+        return self.__class__, (items,)
+
+    def copy(self):
+        'od.copy() -> a shallow copy of od'
+        return self.__class__(self)
+
+    @classmethod
+    def fromkeys(cls, iterable, value=None):
+        '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
+        and values equal to v (which defaults to None).
+
+        '''
+        d = cls()
+        for key in iterable:
+            d[key] = value
+        return d
+
+    def __eq__(self, other):
+        '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
+        while comparison to a regular mapping is order-insensitive.
+
+        '''
+        if isinstance(other, OrderedDict):
+            return len(self)==len(other) and self.items() == other.items()
+        return dict.__eq__(self, other)
+
+    def __ne__(self, other):
+        return not self == other
+
+    # -- the following methods are only used in Python 2.7 --
+
+    def viewkeys(self):
+        "od.viewkeys() -> a set-like object providing a view on od's keys"
+        return KeysView(self)
+
+    def viewvalues(self):
+        "od.viewvalues() -> an object providing a view on od's values"
+        return ValuesView(self)
+
+    def viewitems(self):
+        "od.viewitems() -> a set-like object providing a view on od's items"
+        return ItemsView(self)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py
new file mode 100644
index 0000000..dd59a75
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py
@@ -0,0 +1,13 @@
+try:
+    # Python 3.2+
+    from ssl import CertificateError, match_hostname
+except ImportError:
+    try:
+        # Backport of the function from a pypi module
+        from backports.ssl_match_hostname import CertificateError, match_hostname
+    except ImportError:
+        # Our vendored copy
+        from ._implementation import CertificateError, match_hostname
+
+# Not needed, but documenting what we provide.
+__all__ = ('CertificateError', 'match_hostname')
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..aaa296a
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/_implementation.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/_implementation.cpython-35.pyc
new file mode 100644
index 0000000..37ecd87
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py
new file mode 100644
index 0000000..52f4287
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py
@@ -0,0 +1,105 @@
+"""The match_hostname() function from Python 3.3.3, essential when using SSL."""
+
+# Note: This file is under the PSF license as the code comes from the python
+# stdlib.   http://docs.python.org/3/license.html
+
+import re
+
+__version__ = '3.4.0.2'
+
+class CertificateError(ValueError):
+    pass
+
+
+def _dnsname_match(dn, hostname, max_wildcards=1):
+    """Matching according to RFC 6125, section 6.4.3
+
+    http://tools.ietf.org/html/rfc6125#section-6.4.3
+    """
+    pats = []
+    if not dn:
+        return False
+
+    # Ported from python3-syntax:
+    # leftmost, *remainder = dn.split(r'.')
+    parts = dn.split(r'.')
+    leftmost = parts[0]
+    remainder = parts[1:]
+
+    wildcards = leftmost.count('*')
+    if wildcards > max_wildcards:
+        # Issue #17980: avoid denials of service by refusing more
+        # than one wildcard per fragment.  A survey of established
+        # policy among SSL implementations showed it to be a
+        # reasonable choice.
+        raise CertificateError(
+            "too many wildcards in certificate DNS name: " + repr(dn))
+
+    # speed up common case w/o wildcards
+    if not wildcards:
+        return dn.lower() == hostname.lower()
+
+    # RFC 6125, section 6.4.3, subitem 1.
+    # The client SHOULD NOT attempt to match a presented identifier in which
+    # the wildcard character comprises a label other than the left-most label.
+    if leftmost == '*':
+        # When '*' is a fragment by itself, it matches a non-empty dotless
+        # fragment.
+        pats.append('[^.]+')
+    elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+        # RFC 6125, section 6.4.3, subitem 3.
+        # The client SHOULD NOT attempt to match a presented identifier
+        # where the wildcard character is embedded within an A-label or
+        # U-label of an internationalized domain name.
+        pats.append(re.escape(leftmost))
+    else:
+        # Otherwise, '*' matches any dotless string, e.g. www*
+        pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+    # add the remaining fragments, ignore any wildcards
+    for frag in remainder:
+        pats.append(re.escape(frag))
+
+    pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+    return pat.match(hostname)
+
+
+def match_hostname(cert, hostname):
+    """Verify that *cert* (in decoded format as returned by
+    SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+    rules are followed, but IP addresses are not accepted for *hostname*.
+
+    CertificateError is raised on failure. On success, the function
+    returns nothing.
+    """
+    if not cert:
+        raise ValueError("empty or no certificate")
+    dnsnames = []
+    san = cert.get('subjectAltName', ())
+    for key, value in san:
+        if key == 'DNS':
+            if _dnsname_match(value, hostname):
+                return
+            dnsnames.append(value)
+    if not dnsnames:
+        # The subject is only checked when there is no dNSName entry
+        # in subjectAltName
+        for sub in cert.get('subject', ()):
+            for key, value in sub:
+                # XXX according to RFC 2818, the most specific Common Name
+                # must be used.
+                if key == 'commonName':
+                    if _dnsname_match(value, hostname):
+                        return
+                    dnsnames.append(value)
+    if len(dnsnames) > 1:
+        raise CertificateError("hostname %r "
+            "doesn't match either of %s"
+            % (hostname, ', '.join(map(repr, dnsnames))))
+    elif len(dnsnames) == 1:
+        raise CertificateError("hostname %r "
+            "doesn't match %r"
+            % (hostname, dnsnames[0]))
+    else:
+        raise CertificateError("no appropriate commonName or "
+            "subjectAltName fields were found")
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py
new file mode 100644
index 0000000..7ed00b1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py
@@ -0,0 +1,367 @@
+from __future__ import absolute_import
+import collections
+import functools
+import logging
+
+try:  # Python 3
+    from urllib.parse import urljoin
+except ImportError:
+    from urlparse import urljoin
+
+from ._collections import RecentlyUsedContainer
+from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool
+from .connectionpool import port_by_scheme
+from .exceptions import LocationValueError, MaxRetryError, ProxySchemeUnknown
+from .request import RequestMethods
+from .util.url import parse_url
+from .util.retry import Retry
+
+
+__all__ = ['PoolManager', 'ProxyManager', 'proxy_from_url']
+
+
+log = logging.getLogger(__name__)
+
+SSL_KEYWORDS = ('key_file', 'cert_file', 'cert_reqs', 'ca_certs',
+                'ssl_version', 'ca_cert_dir')
+
+# The base fields to use when determining what pool to get a connection from;
+# these do not rely on the ``connection_pool_kw`` and can be determined by the
+# URL and potentially the ``urllib3.connection.port_by_scheme`` dictionary.
+#
+# All custom key schemes should include the fields in this key at a minimum.
+BasePoolKey = collections.namedtuple('BasePoolKey', ('scheme', 'host', 'port'))
+
+# The fields to use when determining what pool to get a HTTP and HTTPS
+# connection from. All additional fields must be present in the PoolManager's
+# ``connection_pool_kw`` instance variable.
+HTTPPoolKey = collections.namedtuple(
+    'HTTPPoolKey', BasePoolKey._fields + ('timeout', 'retries', 'strict',
+                                          'block', 'source_address')
+)
+HTTPSPoolKey = collections.namedtuple(
+    'HTTPSPoolKey', HTTPPoolKey._fields + SSL_KEYWORDS
+)
+
+
+def _default_key_normalizer(key_class, request_context):
+    """
+    Create a pool key of type ``key_class`` for a request.
+
+    According to RFC 3986, both the scheme and host are case-insensitive.
+    Therefore, this function normalizes both before constructing the pool
+    key for an HTTPS request. If you wish to change this behaviour, provide
+    alternate callables to ``key_fn_by_scheme``.
+
+    :param key_class:
+        The class to use when constructing the key. This should be a namedtuple
+        with the ``scheme`` and ``host`` keys at a minimum.
+
+    :param request_context:
+        A dictionary-like object that contain the context for a request.
+        It should contain a key for each field in the :class:`HTTPPoolKey`
+    """
+    context = {}
+    for key in key_class._fields:
+        context[key] = request_context.get(key)
+    context['scheme'] = context['scheme'].lower()
+    context['host'] = context['host'].lower()
+    return key_class(**context)
+
+
+# A dictionary that maps a scheme to a callable that creates a pool key.
+# This can be used to alter the way pool keys are constructed, if desired.
+# Each PoolManager makes a copy of this dictionary so they can be configured
+# globally here, or individually on the instance.
+key_fn_by_scheme = {
+    'http': functools.partial(_default_key_normalizer, HTTPPoolKey),
+    'https': functools.partial(_default_key_normalizer, HTTPSPoolKey),
+}
+
+pool_classes_by_scheme = {
+    'http': HTTPConnectionPool,
+    'https': HTTPSConnectionPool,
+}
+
+
+class PoolManager(RequestMethods):
+    """
+    Allows for arbitrary requests while transparently keeping track of
+    necessary connection pools for you.
+
+    :param num_pools:
+        Number of connection pools to cache before discarding the least
+        recently used pool.
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+
+    :param \**connection_pool_kw:
+        Additional parameters are used to create fresh
+        :class:`urllib3.connectionpool.ConnectionPool` instances.
+
+    Example::
+
+        >>> manager = PoolManager(num_pools=2)
+        >>> r = manager.request('GET', 'http://google.com/')
+        >>> r = manager.request('GET', 'http://google.com/mail')
+        >>> r = manager.request('GET', 'http://yahoo.com/')
+        >>> len(manager.pools)
+        2
+
+    """
+
+    proxy = None
+
+    def __init__(self, num_pools=10, headers=None, **connection_pool_kw):
+        RequestMethods.__init__(self, headers)
+        self.connection_pool_kw = connection_pool_kw
+        self.pools = RecentlyUsedContainer(num_pools,
+                                           dispose_func=lambda p: p.close())
+
+        # Locally set the pool classes and keys so other PoolManagers can
+        # override them.
+        self.pool_classes_by_scheme = pool_classes_by_scheme
+        self.key_fn_by_scheme = key_fn_by_scheme.copy()
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.clear()
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def _new_pool(self, scheme, host, port):
+        """
+        Create a new :class:`ConnectionPool` based on host, port and scheme.
+
+        This method is used to actually create the connection pools handed out
+        by :meth:`connection_from_url` and companion methods. It is intended
+        to be overridden for customization.
+        """
+        pool_cls = self.pool_classes_by_scheme[scheme]
+        kwargs = self.connection_pool_kw
+        if scheme == 'http':
+            kwargs = self.connection_pool_kw.copy()
+            for kw in SSL_KEYWORDS:
+                kwargs.pop(kw, None)
+
+        return pool_cls(host, port, **kwargs)
+
+    def clear(self):
+        """
+        Empty our store of pools and direct them all to close.
+
+        This will not affect in-flight connections, but they will not be
+        re-used after completion.
+        """
+        self.pools.clear()
+
+    def connection_from_host(self, host, port=None, scheme='http'):
+        """
+        Get a :class:`ConnectionPool` based on the host, port, and scheme.
+
+        If ``port`` isn't given, it will be derived from the ``scheme`` using
+        ``urllib3.connectionpool.port_by_scheme``.
+        """
+
+        if not host:
+            raise LocationValueError("No host specified.")
+
+        request_context = self.connection_pool_kw.copy()
+        request_context['scheme'] = scheme or 'http'
+        if not port:
+            port = port_by_scheme.get(request_context['scheme'].lower(), 80)
+        request_context['port'] = port
+        request_context['host'] = host
+
+        return self.connection_from_context(request_context)
+
+    def connection_from_context(self, request_context):
+        """
+        Get a :class:`ConnectionPool` based on the request context.
+
+        ``request_context`` must at least contain the ``scheme`` key and its
+        value must be a key in ``key_fn_by_scheme`` instance variable.
+        """
+        scheme = request_context['scheme'].lower()
+        pool_key_constructor = self.key_fn_by_scheme[scheme]
+        pool_key = pool_key_constructor(request_context)
+
+        return self.connection_from_pool_key(pool_key)
+
+    def connection_from_pool_key(self, pool_key):
+        """
+        Get a :class:`ConnectionPool` based on the provided pool key.
+
+        ``pool_key`` should be a namedtuple that only contains immutable
+        objects. At a minimum it must have the ``scheme``, ``host``, and
+        ``port`` fields.
+        """
+        with self.pools.lock:
+            # If the scheme, host, or port doesn't match existing open
+            # connections, open a new ConnectionPool.
+            pool = self.pools.get(pool_key)
+            if pool:
+                return pool
+
+            # Make a fresh ConnectionPool of the desired type
+            pool = self._new_pool(pool_key.scheme, pool_key.host, pool_key.port)
+            self.pools[pool_key] = pool
+
+        return pool
+
+    def connection_from_url(self, url):
+        """
+        Similar to :func:`urllib3.connectionpool.connection_from_url` but
+        doesn't pass any additional parameters to the
+        :class:`urllib3.connectionpool.ConnectionPool` constructor.
+
+        Additional parameters are taken from the :class:`.PoolManager`
+        constructor.
+        """
+        u = parse_url(url)
+        return self.connection_from_host(u.host, port=u.port, scheme=u.scheme)
+
+    def urlopen(self, method, url, redirect=True, **kw):
+        """
+        Same as :meth:`urllib3.connectionpool.HTTPConnectionPool.urlopen`
+        with custom cross-host redirect logic and only sends the request-uri
+        portion of the ``url``.
+
+        The given ``url`` parameter must be absolute, such that an appropriate
+        :class:`urllib3.connectionpool.ConnectionPool` can be chosen for it.
+        """
+        u = parse_url(url)
+        conn = self.connection_from_host(u.host, port=u.port, scheme=u.scheme)
+
+        kw['assert_same_host'] = False
+        kw['redirect'] = False
+        if 'headers' not in kw:
+            kw['headers'] = self.headers
+
+        if self.proxy is not None and u.scheme == "http":
+            response = conn.urlopen(method, url, **kw)
+        else:
+            response = conn.urlopen(method, u.request_uri, **kw)
+
+        redirect_location = redirect and response.get_redirect_location()
+        if not redirect_location:
+            return response
+
+        # Support relative URLs for redirecting.
+        redirect_location = urljoin(url, redirect_location)
+
+        # RFC 7231, Section 6.4.4
+        if response.status == 303:
+            method = 'GET'
+
+        retries = kw.get('retries')
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(retries, redirect=redirect)
+
+        try:
+            retries = retries.increment(method, url, response=response, _pool=conn)
+        except MaxRetryError:
+            if retries.raise_on_redirect:
+                raise
+            return response
+
+        kw['retries'] = retries
+        kw['redirect'] = redirect
+
+        log.info("Redirecting %s -> %s", url, redirect_location)
+        return self.urlopen(method, redirect_location, **kw)
+
+
+class ProxyManager(PoolManager):
+    """
+    Behaves just like :class:`PoolManager`, but sends all requests through
+    the defined proxy, using the CONNECT method for HTTPS URLs.
+
+    :param proxy_url:
+        The URL of the proxy to be used.
+
+    :param proxy_headers:
+        A dictionary contaning headers that will be sent to the proxy. In case
+        of HTTP they are being sent with each request, while in the
+        HTTPS/CONNECT case they are sent only once. Could be used for proxy
+        authentication.
+
+    Example:
+        >>> proxy = urllib3.ProxyManager('http://localhost:3128/')
+        >>> r1 = proxy.request('GET', 'http://google.com/')
+        >>> r2 = proxy.request('GET', 'http://httpbin.org/')
+        >>> len(proxy.pools)
+        1
+        >>> r3 = proxy.request('GET', 'https://httpbin.org/')
+        >>> r4 = proxy.request('GET', 'https://twitter.com/')
+        >>> len(proxy.pools)
+        3
+
+    """
+
+    def __init__(self, proxy_url, num_pools=10, headers=None,
+                 proxy_headers=None, **connection_pool_kw):
+
+        if isinstance(proxy_url, HTTPConnectionPool):
+            proxy_url = '%s://%s:%i' % (proxy_url.scheme, proxy_url.host,
+                                        proxy_url.port)
+        proxy = parse_url(proxy_url)
+        if not proxy.port:
+            port = port_by_scheme.get(proxy.scheme, 80)
+            proxy = proxy._replace(port=port)
+
+        if proxy.scheme not in ("http", "https"):
+            raise ProxySchemeUnknown(proxy.scheme)
+
+        self.proxy = proxy
+        self.proxy_headers = proxy_headers or {}
+
+        connection_pool_kw['_proxy'] = self.proxy
+        connection_pool_kw['_proxy_headers'] = self.proxy_headers
+
+        super(ProxyManager, self).__init__(
+            num_pools, headers, **connection_pool_kw)
+
+    def connection_from_host(self, host, port=None, scheme='http'):
+        if scheme == "https":
+            return super(ProxyManager, self).connection_from_host(
+                host, port, scheme)
+
+        return super(ProxyManager, self).connection_from_host(
+            self.proxy.host, self.proxy.port, self.proxy.scheme)
+
+    def _set_proxy_headers(self, url, headers=None):
+        """
+        Sets headers needed by proxies: specifically, the Accept and Host
+        headers. Only sets headers not provided by the user.
+        """
+        headers_ = {'Accept': '*/*'}
+
+        netloc = parse_url(url).netloc
+        if netloc:
+            headers_['Host'] = netloc
+
+        if headers:
+            headers_.update(headers)
+        return headers_
+
+    def urlopen(self, method, url, redirect=True, **kw):
+        "Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute."
+        u = parse_url(url)
+
+        if u.scheme == "http":
+            # For proxied HTTPS requests, httplib sets the necessary headers
+            # on the CONNECT to the proxy. For HTTP, we'll definitely
+            # need to set 'Host' at the very least.
+            headers = kw.get('headers', self.headers)
+            kw['headers'] = self._set_proxy_headers(url, headers)
+
+        return super(ProxyManager, self).urlopen(method, url, redirect=redirect, **kw)
+
+
+def proxy_from_url(url, **kw):
+    return ProxyManager(proxy_url=url, **kw)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py
new file mode 100644
index 0000000..d5aa62d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py
@@ -0,0 +1,151 @@
+from __future__ import absolute_import
+try:
+    from urllib.parse import urlencode
+except ImportError:
+    from urllib import urlencode
+
+from .filepost import encode_multipart_formdata
+
+
+__all__ = ['RequestMethods']
+
+
+class RequestMethods(object):
+    """
+    Convenience mixin for classes who implement a :meth:`urlopen` method, such
+    as :class:`~urllib3.connectionpool.HTTPConnectionPool` and
+    :class:`~urllib3.poolmanager.PoolManager`.
+
+    Provides behavior for making common types of HTTP request methods and
+    decides which type of request field encoding to use.
+
+    Specifically,
+
+    :meth:`.request_encode_url` is for sending requests whose fields are
+    encoded in the URL (such as GET, HEAD, DELETE).
+
+    :meth:`.request_encode_body` is for sending requests whose fields are
+    encoded in the *body* of the request using multipart or www-form-urlencoded
+    (such as for POST, PUT, PATCH).
+
+    :meth:`.request` is for making any kind of request, it will look up the
+    appropriate encoding format and use one of the above two methods to make
+    the request.
+
+    Initializer parameters:
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+    """
+
+    _encode_url_methods = set(['DELETE', 'GET', 'HEAD', 'OPTIONS'])
+
+    def __init__(self, headers=None):
+        self.headers = headers or {}
+
+    def urlopen(self, method, url, body=None, headers=None,
+                encode_multipart=True, multipart_boundary=None,
+                **kw):  # Abstract
+        raise NotImplemented("Classes extending RequestMethods must implement "
+                             "their own ``urlopen`` method.")
+
+    def request(self, method, url, fields=None, headers=None, **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the appropriate encoding of
+        ``fields`` based on the ``method`` used.
+
+        This is a convenience method that requires the least amount of manual
+        effort. It can be used in most situations, while still having the
+        option to drop down to more specific methods when necessary, such as
+        :meth:`request_encode_url`, :meth:`request_encode_body`,
+        or even the lowest level :meth:`urlopen`.
+        """
+        method = method.upper()
+
+        if method in self._encode_url_methods:
+            return self.request_encode_url(method, url, fields=fields,
+                                           headers=headers,
+                                           **urlopen_kw)
+        else:
+            return self.request_encode_body(method, url, fields=fields,
+                                            headers=headers,
+                                            **urlopen_kw)
+
+    def request_encode_url(self, method, url, fields=None, headers=None,
+                           **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the ``fields`` encoded in
+        the url. This is useful for request methods like GET, HEAD, DELETE, etc.
+        """
+        if headers is None:
+            headers = self.headers
+
+        extra_kw = {'headers': headers}
+        extra_kw.update(urlopen_kw)
+
+        if fields:
+            url += '?' + urlencode(fields)
+
+        return self.urlopen(method, url, **extra_kw)
+
+    def request_encode_body(self, method, url, fields=None, headers=None,
+                            encode_multipart=True, multipart_boundary=None,
+                            **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the ``fields`` encoded in
+        the body. This is useful for request methods like POST, PUT, PATCH, etc.
+
+        When ``encode_multipart=True`` (default), then
+        :meth:`urllib3.filepost.encode_multipart_formdata` is used to encode
+        the payload with the appropriate content type. Otherwise
+        :meth:`urllib.urlencode` is used with the
+        'application/x-www-form-urlencoded' content type.
+
+        Multipart encoding must be used when posting files, and it's reasonably
+        safe to use it in other times too. However, it may break request
+        signing, such as with OAuth.
+
+        Supports an optional ``fields`` parameter of key/value strings AND
+        key/filetuple. A filetuple is a (filename, data, MIME type) tuple where
+        the MIME type is optional. For example::
+
+            fields = {
+                'foo': 'bar',
+                'fakefile': ('foofile.txt', 'contents of foofile'),
+                'realfile': ('barfile.txt', open('realfile').read()),
+                'typedfile': ('bazfile.bin', open('bazfile').read(),
+                              'image/jpeg'),
+                'nonamefile': 'contents of nonamefile field',
+            }
+
+        When uploading a file, providing a filename (the first parameter of the
+        tuple) is optional but recommended to best mimick behavior of browsers.
+
+        Note that if ``headers`` are supplied, the 'Content-Type' header will
+        be overwritten because it depends on the dynamic random boundary string
+        which is used to compose the body of the request. The random boundary
+        string can be explicitly set with the ``multipart_boundary`` parameter.
+        """
+        if headers is None:
+            headers = self.headers
+
+        extra_kw = {'headers': {}}
+
+        if fields:
+            if 'body' in urlopen_kw:
+                raise TypeError(
+                    "request got values for both 'fields' and 'body', can only specify one.")
+
+            if encode_multipart:
+                body, content_type = encode_multipart_formdata(fields, boundary=multipart_boundary)
+            else:
+                body, content_type = urlencode(fields), 'application/x-www-form-urlencoded'
+
+            extra_kw['body'] = body
+            extra_kw['headers'] = {'Content-Type': content_type}
+
+        extra_kw['headers'].update(headers)
+        extra_kw.update(urlopen_kw)
+
+        return self.urlopen(method, url, **extra_kw)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py
new file mode 100644
index 0000000..5567903
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py
@@ -0,0 +1,530 @@
+from __future__ import absolute_import
+from contextlib import contextmanager
+import zlib
+import io
+from socket import timeout as SocketTimeout
+from socket import error as SocketError
+
+from ._collections import HTTPHeaderDict
+from .exceptions import (
+    ProtocolError, DecodeError, ReadTimeoutError, ResponseNotChunked
+)
+from .packages.six import string_types as basestring, binary_type, PY3
+from .packages.six.moves import http_client as httplib
+from .connection import HTTPException, BaseSSLError
+from .util.response import is_fp_closed, is_response_to_head
+
+
+class DeflateDecoder(object):
+
+    def __init__(self):
+        self._first_try = True
+        self._data = binary_type()
+        self._obj = zlib.decompressobj()
+
+    def __getattr__(self, name):
+        return getattr(self._obj, name)
+
+    def decompress(self, data):
+        if not data:
+            return data
+
+        if not self._first_try:
+            return self._obj.decompress(data)
+
+        self._data += data
+        try:
+            return self._obj.decompress(data)
+        except zlib.error:
+            self._first_try = False
+            self._obj = zlib.decompressobj(-zlib.MAX_WBITS)
+            try:
+                return self.decompress(self._data)
+            finally:
+                self._data = None
+
+
+class GzipDecoder(object):
+
+    def __init__(self):
+        self._obj = zlib.decompressobj(16 + zlib.MAX_WBITS)
+
+    def __getattr__(self, name):
+        return getattr(self._obj, name)
+
+    def decompress(self, data):
+        if not data:
+            return data
+        return self._obj.decompress(data)
+
+
+def _get_decoder(mode):
+    if mode == 'gzip':
+        return GzipDecoder()
+
+    return DeflateDecoder()
+
+
+class HTTPResponse(io.IOBase):
+    """
+    HTTP Response container.
+
+    Backwards-compatible to httplib's HTTPResponse but the response ``body`` is
+    loaded and decoded on-demand when the ``data`` property is accessed.  This
+    class is also compatible with the Python standard library's :mod:`io`
+    module, and can hence be treated as a readable object in the context of that
+    framework.
+
+    Extra parameters for behaviour not present in httplib.HTTPResponse:
+
+    :param preload_content:
+        If True, the response's body will be preloaded during construction.
+
+    :param decode_content:
+        If True, attempts to decode specific content-encoding's based on headers
+        (like 'gzip' and 'deflate') will be skipped and raw data will be used
+        instead.
+
+    :param original_response:
+        When this HTTPResponse wrapper is generated from an httplib.HTTPResponse
+        object, it's convenient to include the original for debug purposes. It's
+        otherwise unused.
+    """
+
+    CONTENT_DECODERS = ['gzip', 'deflate']
+    REDIRECT_STATUSES = [301, 302, 303, 307, 308]
+
+    def __init__(self, body='', headers=None, status=0, version=0, reason=None,
+                 strict=0, preload_content=True, decode_content=True,
+                 original_response=None, pool=None, connection=None):
+
+        if isinstance(headers, HTTPHeaderDict):
+            self.headers = headers
+        else:
+            self.headers = HTTPHeaderDict(headers)
+        self.status = status
+        self.version = version
+        self.reason = reason
+        self.strict = strict
+        self.decode_content = decode_content
+
+        self._decoder = None
+        self._body = None
+        self._fp = None
+        self._original_response = original_response
+        self._fp_bytes_read = 0
+
+        if body and isinstance(body, (basestring, binary_type)):
+            self._body = body
+
+        self._pool = pool
+        self._connection = connection
+
+        if hasattr(body, 'read'):
+            self._fp = body
+
+        # Are we using the chunked-style of transfer encoding?
+        self.chunked = False
+        self.chunk_left = None
+        tr_enc = self.headers.get('transfer-encoding', '').lower()
+        # Don't incur the penalty of creating a list and then discarding it
+        encodings = (enc.strip() for enc in tr_enc.split(","))
+        if "chunked" in encodings:
+            self.chunked = True
+
+        # If requested, preload the body.
+        if preload_content and not self._body:
+            self._body = self.read(decode_content=decode_content)
+
+    def get_redirect_location(self):
+        """
+        Should we redirect and where to?
+
+        :returns: Truthy redirect location string if we got a redirect status
+            code and valid location. ``None`` if redirect status and no
+            location. ``False`` if not a redirect status code.
+        """
+        if self.status in self.REDIRECT_STATUSES:
+            return self.headers.get('location')
+
+        return False
+
+    def release_conn(self):
+        if not self._pool or not self._connection:
+            return
+
+        self._pool._put_conn(self._connection)
+        self._connection = None
+
+    @property
+    def data(self):
+        # For backwords-compat with earlier urllib3 0.4 and earlier.
+        if self._body:
+            return self._body
+
+        if self._fp:
+            return self.read(cache_content=True)
+
+    @property
+    def connection(self):
+        return self._connection
+
+    def tell(self):
+        """
+        Obtain the number of bytes pulled over the wire so far. May differ from
+        the amount of content returned by :meth:``HTTPResponse.read`` if bytes
+        are encoded on the wire (e.g, compressed).
+        """
+        return self._fp_bytes_read
+
+    def _init_decoder(self):
+        """
+        Set-up the _decoder attribute if necessar.
+        """
+        # Note: content-encoding value should be case-insensitive, per RFC 7230
+        # Section 3.2
+        content_encoding = self.headers.get('content-encoding', '').lower()
+        if self._decoder is None and content_encoding in self.CONTENT_DECODERS:
+            self._decoder = _get_decoder(content_encoding)
+
+    def _decode(self, data, decode_content, flush_decoder):
+        """
+        Decode the data passed in and potentially flush the decoder.
+        """
+        try:
+            if decode_content and self._decoder:
+                data = self._decoder.decompress(data)
+        except (IOError, zlib.error) as e:
+            content_encoding = self.headers.get('content-encoding', '').lower()
+            raise DecodeError(
+                "Received response with content-encoding: %s, but "
+                "failed to decode it." % content_encoding, e)
+
+        if flush_decoder and decode_content:
+            data += self._flush_decoder()
+
+        return data
+
+    def _flush_decoder(self):
+        """
+        Flushes the decoder. Should only be called if the decoder is actually
+        being used.
+        """
+        if self._decoder:
+            buf = self._decoder.decompress(b'')
+            return buf + self._decoder.flush()
+
+        return b''
+
+    @contextmanager
+    def _error_catcher(self):
+        """
+        Catch low-level python exceptions, instead re-raising urllib3
+        variants, so that low-level exceptions are not leaked in the
+        high-level api.
+
+        On exit, release the connection back to the pool.
+        """
+        clean_exit = False
+
+        try:
+            try:
+                yield
+
+            except SocketTimeout:
+                # FIXME: Ideally we'd like to include the url in the ReadTimeoutError but
+                # there is yet no clean way to get at it from this context.
+                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
+
+            except BaseSSLError as e:
+                # FIXME: Is there a better way to differentiate between SSLErrors?
+                if 'read operation timed out' not in str(e):  # Defensive:
+                    # This shouldn't happen but just in case we're missing an edge
+                    # case, let's avoid swallowing SSL errors.
+                    raise
+
+                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
+
+            except (HTTPException, SocketError) as e:
+                # This includes IncompleteRead.
+                raise ProtocolError('Connection broken: %r' % e, e)
+
+            # If no exception is thrown, we should avoid cleaning up
+            # unnecessarily.
+            clean_exit = True
+        finally:
+            # If we didn't terminate cleanly, we need to throw away our
+            # connection.
+            if not clean_exit:
+                # The response may not be closed but we're not going to use it
+                # anymore so close it now to ensure that the connection is
+                # released back to the pool.
+                if self._original_response:
+                    self._original_response.close()
+
+                # Closing the response may not actually be sufficient to close
+                # everything, so if we have a hold of the connection close that
+                # too.
+                if self._connection:
+                    self._connection.close()
+
+            # If we hold the original response but it's closed now, we should
+            # return the connection back to the pool.
+            if self._original_response and self._original_response.isclosed():
+                self.release_conn()
+
+    def read(self, amt=None, decode_content=None, cache_content=False):
+        """
+        Similar to :meth:`httplib.HTTPResponse.read`, but with two additional
+        parameters: ``decode_content`` and ``cache_content``.
+
+        :param amt:
+            How much of the content to read. If specified, caching is skipped
+            because it doesn't make sense to cache partial content as the full
+            response.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+
+        :param cache_content:
+            If True, will save the returned data such that the same result is
+            returned despite of the state of the underlying file object. This
+            is useful if you want the ``.data`` property to continue working
+            after having ``.read()`` the file object. (Overridden if ``amt`` is
+            set.)
+        """
+        self._init_decoder()
+        if decode_content is None:
+            decode_content = self.decode_content
+
+        if self._fp is None:
+            return
+
+        flush_decoder = False
+        data = None
+
+        with self._error_catcher():
+            if amt is None:
+                # cStringIO doesn't like amt=None
+                data = self._fp.read()
+                flush_decoder = True
+            else:
+                cache_content = False
+                data = self._fp.read(amt)
+                if amt != 0 and not data:  # Platform-specific: Buggy versions of Python.
+                    # Close the connection when no data is returned
+                    #
+                    # This is redundant to what httplib/http.client _should_
+                    # already do.  However, versions of python released before
+                    # December 15, 2012 (http://bugs.python.org/issue16298) do
+                    # not properly close the connection in all cases. There is
+                    # no harm in redundantly calling close.
+                    self._fp.close()
+                    flush_decoder = True
+
+        if data:
+            self._fp_bytes_read += len(data)
+
+            data = self._decode(data, decode_content, flush_decoder)
+
+            if cache_content:
+                self._body = data
+
+        return data
+
+    def stream(self, amt=2**16, decode_content=None):
+        """
+        A generator wrapper for the read() method. A call will block until
+        ``amt`` bytes have been read from the connection or until the
+        connection is closed.
+
+        :param amt:
+            How much of the content to read. The generator will return up to
+            much data per iteration, but may return less. This is particularly
+            likely when using compressed data. However, the empty string will
+            never be returned.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+        """
+        if self.chunked:
+            for line in self.read_chunked(amt, decode_content=decode_content):
+                yield line
+        else:
+            while not is_fp_closed(self._fp):
+                data = self.read(amt=amt, decode_content=decode_content)
+
+                if data:
+                    yield data
+
+    @classmethod
+    def from_httplib(ResponseCls, r, **response_kw):
+        """
+        Given an :class:`httplib.HTTPResponse` instance ``r``, return a
+        corresponding :class:`urllib3.response.HTTPResponse` object.
+
+        Remaining parameters are passed to the HTTPResponse constructor, along
+        with ``original_response=r``.
+        """
+        headers = r.msg
+
+        if not isinstance(headers, HTTPHeaderDict):
+            if PY3:  # Python 3
+                headers = HTTPHeaderDict(headers.items())
+            else:  # Python 2
+                headers = HTTPHeaderDict.from_httplib(headers)
+
+        # HTTPResponse objects in Python 3 don't have a .strict attribute
+        strict = getattr(r, 'strict', 0)
+        resp = ResponseCls(body=r,
+                           headers=headers,
+                           status=r.status,
+                           version=r.version,
+                           reason=r.reason,
+                           strict=strict,
+                           original_response=r,
+                           **response_kw)
+        return resp
+
+    # Backwards-compatibility methods for httplib.HTTPResponse
+    def getheaders(self):
+        return self.headers
+
+    def getheader(self, name, default=None):
+        return self.headers.get(name, default)
+
+    # Overrides from io.IOBase
+    def close(self):
+        if not self.closed:
+            self._fp.close()
+
+        if self._connection:
+            self._connection.close()
+
+    @property
+    def closed(self):
+        if self._fp is None:
+            return True
+        elif hasattr(self._fp, 'closed'):
+            return self._fp.closed
+        elif hasattr(self._fp, 'isclosed'):  # Python 2
+            return self._fp.isclosed()
+        else:
+            return True
+
+    def fileno(self):
+        if self._fp is None:
+            raise IOError("HTTPResponse has no file to get a fileno from")
+        elif hasattr(self._fp, "fileno"):
+            return self._fp.fileno()
+        else:
+            raise IOError("The file-like object this HTTPResponse is wrapped "
+                          "around has no file descriptor")
+
+    def flush(self):
+        if self._fp is not None and hasattr(self._fp, 'flush'):
+            return self._fp.flush()
+
+    def readable(self):
+        # This method is required for `io` module compatibility.
+        return True
+
+    def readinto(self, b):
+        # This method is required for `io` module compatibility.
+        temp = self.read(len(b))
+        if len(temp) == 0:
+            return 0
+        else:
+            b[:len(temp)] = temp
+            return len(temp)
+
+    def _update_chunk_length(self):
+        # First, we'll figure out length of a chunk and then
+        # we'll try to read it from socket.
+        if self.chunk_left is not None:
+            return
+        line = self._fp.fp.readline()
+        line = line.split(b';', 1)[0]
+        try:
+            self.chunk_left = int(line, 16)
+        except ValueError:
+            # Invalid chunked protocol response, abort.
+            self.close()
+            raise httplib.IncompleteRead(line)
+
+    def _handle_chunk(self, amt):
+        returned_chunk = None
+        if amt is None:
+            chunk = self._fp._safe_read(self.chunk_left)
+            returned_chunk = chunk
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+        elif amt < self.chunk_left:
+            value = self._fp._safe_read(amt)
+            self.chunk_left = self.chunk_left - amt
+            returned_chunk = value
+        elif amt == self.chunk_left:
+            value = self._fp._safe_read(amt)
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+            returned_chunk = value
+        else:  # amt > self.chunk_left
+            returned_chunk = self._fp._safe_read(self.chunk_left)
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+        return returned_chunk
+
+    def read_chunked(self, amt=None, decode_content=None):
+        """
+        Similar to :meth:`HTTPResponse.read`, but with an additional
+        parameter: ``decode_content``.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+        """
+        self._init_decoder()
+        # FIXME: Rewrite this method and make it a class with a better structured logic.
+        if not self.chunked:
+            raise ResponseNotChunked(
+                "Response is not chunked. "
+                "Header 'transfer-encoding: chunked' is missing.")
+
+        # Don't bother reading the body of a HEAD request.
+        if self._original_response and is_response_to_head(self._original_response):
+            self._original_response.close()
+            return
+
+        with self._error_catcher():
+            while True:
+                self._update_chunk_length()
+                if self.chunk_left == 0:
+                    break
+                chunk = self._handle_chunk(amt)
+                decoded = self._decode(chunk, decode_content=decode_content,
+                                       flush_decoder=False)
+                if decoded:
+                    yield decoded
+
+            if decode_content:
+                # On CPython and PyPy, we should never need to flush the
+                # decoder. However, on Jython we *might* need to, so
+                # lets defensively do it anyway.
+                decoded = self._flush_decoder()
+                if decoded:  # Platform-specific: Jython.
+                    yield decoded
+
+            # Chunk content ends with \r\n: discard it.
+            while True:
+                line = self._fp.fp.readline()
+                if not line:
+                    # Some sites may not end with '\r\n'.
+                    break
+                if line == b'\r\n':
+                    break
+
+            # We read everything; close the "file".
+            if self._original_response:
+                self._original_response.close()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py
new file mode 100644
index 0000000..4778cf9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py
@@ -0,0 +1,46 @@
+from __future__ import absolute_import
+# For backwards compatibility, provide imports that used to be here.
+from .connection import is_connection_dropped
+from .request import make_headers
+from .response import is_fp_closed
+from .ssl_ import (
+    SSLContext,
+    HAS_SNI,
+    IS_PYOPENSSL,
+    assert_fingerprint,
+    resolve_cert_reqs,
+    resolve_ssl_version,
+    ssl_wrap_socket,
+)
+from .timeout import (
+    current_time,
+    Timeout,
+)
+
+from .retry import Retry
+from .url import (
+    get_host,
+    parse_url,
+    split_first,
+    Url,
+)
+
+__all__ = (
+    'HAS_SNI',
+    'IS_PYOPENSSL',
+    'SSLContext',
+    'Retry',
+    'Timeout',
+    'Url',
+    'assert_fingerprint',
+    'current_time',
+    'is_connection_dropped',
+    'is_fp_closed',
+    'get_host',
+    'parse_url',
+    'make_headers',
+    'resolve_cert_reqs',
+    'resolve_ssl_version',
+    'split_first',
+    'ssl_wrap_socket',
+)
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py
new file mode 100644
index 0000000..5e76135
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py
@@ -0,0 +1,144 @@
+from __future__ import absolute_import
+import socket
+try:
+    from select import poll, POLLIN
+except ImportError:  # `poll` doesn't exist on OSX and other platforms
+    poll = False
+    try:
+        from select import select
+    except ImportError:  # `select` doesn't exist on AppEngine.
+        select = False
+
+
+def is_connection_dropped(conn):  # Platform-specific
+    """
+    Returns True if the connection is dropped and should be closed.
+
+    :param conn:
+        :class:`httplib.HTTPConnection` object.
+
+    Note: For platforms like AppEngine, this will always return ``False`` to
+    let the platform handle connection recycling transparently for us.
+    """
+    sock = getattr(conn, 'sock', False)
+    if sock is False:  # Platform-specific: AppEngine
+        return False
+    if sock is None:  # Connection already closed (such as by httplib).
+        return True
+
+    if not poll:
+        if not select:  # Platform-specific: AppEngine
+            return False
+
+        try:
+            return select([sock], [], [], 0.0)[0]
+        except socket.error:
+            return True
+
+    # This version is better on platforms that support it.
+    p = poll()
+    p.register(sock, POLLIN)
+    for (fno, ev) in p.poll(0.0):
+        if fno == sock.fileno():
+            # Either data is buffered (bad), or the connection is dropped.
+            return True
+
+
+# This function is copied from socket.py in the Python 2.7 standard
+# library test suite. Added to its signature is only `socket_options`.
+# One additional modification is that we avoid binding to IPv6 servers
+# discovered in DNS if the system doesn't have IPv6 functionality.
+def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
+                      source_address=None, socket_options=None):
+    """Connect to *address* and return the socket object.
+
+    Convenience function.  Connect to *address* (a 2-tuple ``(host,
+    port)``) and return the socket object.  Passing the optional
+    *timeout* parameter will set the timeout on the socket instance
+    before attempting to connect.  If no *timeout* is supplied, the
+    global default timeout setting returned by :func:`getdefaulttimeout`
+    is used.  If *source_address* is set it must be a tuple of (host, port)
+    for the socket to bind as a source address before making the connection.
+    An host of '' or port 0 tells the OS to use the default.
+    """
+
+    host, port = address
+    if host.startswith('['):
+        host = host.strip('[]')
+    err = None
+
+    # Using the value from allowed_gai_family() in the context of getaddrinfo lets
+    # us select whether to work with IPv4 DNS records, IPv6 records, or both.
+    # The original create_connection function always returns all records.
+    family = allowed_gai_family()
+
+    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
+        af, socktype, proto, canonname, sa = res
+        sock = None
+        try:
+            sock = socket.socket(af, socktype, proto)
+
+            # If provided, set socket level options before connecting.
+            _set_socket_options(sock, socket_options)
+
+            if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
+                sock.settimeout(timeout)
+            if source_address:
+                sock.bind(source_address)
+            sock.connect(sa)
+            return sock
+
+        except socket.error as e:
+            err = e
+            if sock is not None:
+                sock.close()
+                sock = None
+
+    if err is not None:
+        raise err
+
+    raise socket.error("getaddrinfo returns an empty list")
+
+
+def _set_socket_options(sock, options):
+    if options is None:
+        return
+
+    for opt in options:
+        sock.setsockopt(*opt)
+
+
+def allowed_gai_family():
+    """This function is designed to work in the context of
+    getaddrinfo, where family=socket.AF_UNSPEC is the default and
+    will perform a DNS search for both IPv6 and IPv4 records."""
+
+    family = socket.AF_INET
+    if HAS_IPV6:
+        family = socket.AF_UNSPEC
+    return family
+
+
+def _has_ipv6(host):
+    """ Returns True if the system can bind an IPv6 address. """
+    sock = None
+    has_ipv6 = False
+
+    if socket.has_ipv6:
+        # has_ipv6 returns true if cPython was compiled with IPv6 support.
+        # It does not tell us if the system has IPv6 support enabled. To
+        # determine that we must bind to an IPv6 address.
+        # https://github.com/shazow/urllib3/pull/611
+        # https://bugs.python.org/issue658327
+        try:
+            sock = socket.socket(socket.AF_INET6)
+            sock.bind((host, 0))
+            has_ipv6 = True
+        except Exception:
+            pass
+
+    if sock:
+        sock.close()
+    return has_ipv6
+
+HAS_IPV6 = _has_ipv6('::1')
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py
new file mode 100644
index 0000000..7377931
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py
@@ -0,0 +1,72 @@
+from __future__ import absolute_import
+from base64 import b64encode
+
+from ..packages.six import b
+
+ACCEPT_ENCODING = 'gzip,deflate'
+
+
+def make_headers(keep_alive=None, accept_encoding=None, user_agent=None,
+                 basic_auth=None, proxy_basic_auth=None, disable_cache=None):
+    """
+    Shortcuts for generating request headers.
+
+    :param keep_alive:
+        If ``True``, adds 'connection: keep-alive' header.
+
+    :param accept_encoding:
+        Can be a boolean, list, or string.
+        ``True`` translates to 'gzip,deflate'.
+        List will get joined by comma.
+        String will be used as provided.
+
+    :param user_agent:
+        String representing the user-agent you want, such as
+        "python-urllib3/0.6"
+
+    :param basic_auth:
+        Colon-separated username:password string for 'authorization: basic ...'
+        auth header.
+
+    :param proxy_basic_auth:
+        Colon-separated username:password string for 'proxy-authorization: basic ...'
+        auth header.
+
+    :param disable_cache:
+        If ``True``, adds 'cache-control: no-cache' header.
+
+    Example::
+
+        >>> make_headers(keep_alive=True, user_agent="Batman/1.0")
+        {'connection': 'keep-alive', 'user-agent': 'Batman/1.0'}
+        >>> make_headers(accept_encoding=True)
+        {'accept-encoding': 'gzip,deflate'}
+    """
+    headers = {}
+    if accept_encoding:
+        if isinstance(accept_encoding, str):
+            pass
+        elif isinstance(accept_encoding, list):
+            accept_encoding = ','.join(accept_encoding)
+        else:
+            accept_encoding = ACCEPT_ENCODING
+        headers['accept-encoding'] = accept_encoding
+
+    if user_agent:
+        headers['user-agent'] = user_agent
+
+    if keep_alive:
+        headers['connection'] = 'keep-alive'
+
+    if basic_auth:
+        headers['authorization'] = 'Basic ' + \
+            b64encode(b(basic_auth)).decode('utf-8')
+
+    if proxy_basic_auth:
+        headers['proxy-authorization'] = 'Basic ' + \
+            b64encode(b(proxy_basic_auth)).decode('utf-8')
+
+    if disable_cache:
+        headers['cache-control'] = 'no-cache'
+
+    return headers
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py
new file mode 100644
index 0000000..0b5c75c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py
@@ -0,0 +1,74 @@
+from __future__ import absolute_import
+from ..packages.six.moves import http_client as httplib
+
+from ..exceptions import HeaderParsingError
+
+
+def is_fp_closed(obj):
+    """
+    Checks whether a given file-like object is closed.
+
+    :param obj:
+        The file-like object to check.
+    """
+
+    try:
+        # Check via the official file-like-object way.
+        return obj.closed
+    except AttributeError:
+        pass
+
+    try:
+        # Check if the object is a container for another file-like object that
+        # gets released on exhaustion (e.g. HTTPResponse).
+        return obj.fp is None
+    except AttributeError:
+        pass
+
+    raise ValueError("Unable to determine whether fp is closed.")
+
+
+def assert_header_parsing(headers):
+    """
+    Asserts whether all headers have been successfully parsed.
+    Extracts encountered errors from the result of parsing headers.
+
+    Only works on Python 3.
+
+    :param headers: Headers to verify.
+    :type headers: `httplib.HTTPMessage`.
+
+    :raises urllib3.exceptions.HeaderParsingError:
+        If parsing errors are found.
+    """
+
+    # This will fail silently if we pass in the wrong kind of parameter.
+    # To make debugging easier add an explicit check.
+    if not isinstance(headers, httplib.HTTPMessage):
+        raise TypeError('expected httplib.Message, got {0}.'.format(
+            type(headers)))
+
+    defects = getattr(headers, 'defects', None)
+    get_payload = getattr(headers, 'get_payload', None)
+
+    unparsed_data = None
+    if get_payload:  # Platform-specific: Python 3.
+        unparsed_data = get_payload()
+
+    if defects or unparsed_data:
+        raise HeaderParsingError(defects=defects, unparsed_data=unparsed_data)
+
+
+def is_response_to_head(response):
+    """
+    Checks whether the request of a response has been a HEAD-request.
+    Handles the quirks of AppEngine.
+
+    :param conn:
+    :type conn: :class:`httplib.HTTPResponse`
+    """
+    # FIXME: Can we do this somehow without accessing private httplib _method?
+    method = response._method
+    if isinstance(method, int):  # Platform-specific: Appengine
+        return method == 3
+    return method.upper() == 'HEAD'
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py
new file mode 100644
index 0000000..d379833
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py
@@ -0,0 +1,300 @@
+from __future__ import absolute_import
+import time
+import logging
+
+from ..exceptions import (
+    ConnectTimeoutError,
+    MaxRetryError,
+    ProtocolError,
+    ReadTimeoutError,
+    ResponseError,
+)
+from ..packages import six
+
+
+log = logging.getLogger(__name__)
+
+
+class Retry(object):
+    """ Retry configuration.
+
+    Each retry attempt will create a new Retry object with updated values, so
+    they can be safely reused.
+
+    Retries can be defined as a default for a pool::
+
+        retries = Retry(connect=5, read=2, redirect=5)
+        http = PoolManager(retries=retries)
+        response = http.request('GET', 'http://example.com/')
+
+    Or per-request (which overrides the default for the pool)::
+
+        response = http.request('GET', 'http://example.com/', retries=Retry(10))
+
+    Retries can be disabled by passing ``False``::
+
+        response = http.request('GET', 'http://example.com/', retries=False)
+
+    Errors will be wrapped in :class:`~urllib3.exceptions.MaxRetryError` unless
+    retries are disabled, in which case the causing exception will be raised.
+
+    :param int total:
+        Total number of retries to allow. Takes precedence over other counts.
+
+        Set to ``None`` to remove this constraint and fall back on other
+        counts. It's a good idea to set this to some sensibly-high value to
+        account for unexpected edge cases and avoid infinite retry loops.
+
+        Set to ``0`` to fail on the first retry.
+
+        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
+
+    :param int connect:
+        How many connection-related errors to retry on.
+
+        These are errors raised before the request is sent to the remote server,
+        which we assume has not triggered the server to process the request.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+    :param int read:
+        How many times to retry on read errors.
+
+        These errors are raised after the request was sent to the server, so the
+        request may have side-effects.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+    :param int redirect:
+        How many redirects to perform. Limit this to avoid infinite redirect
+        loops.
+
+        A redirect is a HTTP response with a status code 301, 302, 303, 307 or
+        308.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
+
+    :param iterable method_whitelist:
+        Set of uppercased HTTP method verbs that we should retry on.
+
+        By default, we only retry on methods which are considered to be
+        idempotent (multiple requests with the same parameters end with the
+        same state). See :attr:`Retry.DEFAULT_METHOD_WHITELIST`.
+
+        Set to a ``False`` value to retry on any verb.
+
+    :param iterable status_forcelist:
+        A set of integer HTTP status codes that we should force a retry on.
+        A retry is initiated if the request method is in ``method_whitelist``
+        and the response status code is in ``status_forcelist``.
+
+        By default, this is disabled with ``None``.
+
+    :param float backoff_factor:
+        A backoff factor to apply between attempts after the second try
+        (most errors are resolved immediately by a second try without a
+        delay). urllib3 will sleep for::
+
+            {backoff factor} * (2 ^ ({number of total retries} - 1))
+
+        seconds. If the backoff_factor is 0.1, then :func:`.sleep` will sleep
+        for [0.0s, 0.2s, 0.4s, ...] between retries. It will never be longer
+        than :attr:`Retry.BACKOFF_MAX`.
+
+        By default, backoff is disabled (set to 0).
+
+    :param bool raise_on_redirect: Whether, if the number of redirects is
+        exhausted, to raise a MaxRetryError, or to return a response with a
+        response code in the 3xx range.
+
+    :param bool raise_on_status: Similar meaning to ``raise_on_redirect``:
+        whether we should raise an exception, or return a response,
+        if status falls in ``status_forcelist`` range and retries have
+        been exhausted.
+    """
+
+    DEFAULT_METHOD_WHITELIST = frozenset([
+        'HEAD', 'GET', 'PUT', 'DELETE', 'OPTIONS', 'TRACE'])
+
+    #: Maximum backoff time.
+    BACKOFF_MAX = 120
+
+    def __init__(self, total=10, connect=None, read=None, redirect=None,
+                 method_whitelist=DEFAULT_METHOD_WHITELIST, status_forcelist=None,
+                 backoff_factor=0, raise_on_redirect=True, raise_on_status=True,
+                 _observed_errors=0):
+
+        self.total = total
+        self.connect = connect
+        self.read = read
+
+        if redirect is False or total is False:
+            redirect = 0
+            raise_on_redirect = False
+
+        self.redirect = redirect
+        self.status_forcelist = status_forcelist or set()
+        self.method_whitelist = method_whitelist
+        self.backoff_factor = backoff_factor
+        self.raise_on_redirect = raise_on_redirect
+        self.raise_on_status = raise_on_status
+        self._observed_errors = _observed_errors  # TODO: use .history instead?
+
+    def new(self, **kw):
+        params = dict(
+            total=self.total,
+            connect=self.connect, read=self.read, redirect=self.redirect,
+            method_whitelist=self.method_whitelist,
+            status_forcelist=self.status_forcelist,
+            backoff_factor=self.backoff_factor,
+            raise_on_redirect=self.raise_on_redirect,
+            raise_on_status=self.raise_on_status,
+            _observed_errors=self._observed_errors,
+        )
+        params.update(kw)
+        return type(self)(**params)
+
+    @classmethod
+    def from_int(cls, retries, redirect=True, default=None):
+        """ Backwards-compatibility for the old retries format."""
+        if retries is None:
+            retries = default if default is not None else cls.DEFAULT
+
+        if isinstance(retries, Retry):
+            return retries
+
+        redirect = bool(redirect) and None
+        new_retries = cls(retries, redirect=redirect)
+        log.debug("Converted retries value: %r -> %r", retries, new_retries)
+        return new_retries
+
+    def get_backoff_time(self):
+        """ Formula for computing the current backoff
+
+        :rtype: float
+        """
+        if self._observed_errors <= 1:
+            return 0
+
+        backoff_value = self.backoff_factor * (2 ** (self._observed_errors - 1))
+        return min(self.BACKOFF_MAX, backoff_value)
+
+    def sleep(self):
+        """ Sleep between retry attempts using an exponential backoff.
+
+        By default, the backoff factor is 0 and this method will return
+        immediately.
+        """
+        backoff = self.get_backoff_time()
+        if backoff <= 0:
+            return
+        time.sleep(backoff)
+
+    def _is_connection_error(self, err):
+        """ Errors when we're fairly sure that the server did not receive the
+        request, so it should be safe to retry.
+        """
+        return isinstance(err, ConnectTimeoutError)
+
+    def _is_read_error(self, err):
+        """ Errors that occur after the request has been started, so we should
+        assume that the server began processing it.
+        """
+        return isinstance(err, (ReadTimeoutError, ProtocolError))
+
+    def is_forced_retry(self, method, status_code):
+        """ Is this method/status code retryable? (Based on method/codes whitelists)
+        """
+        if self.method_whitelist and method.upper() not in self.method_whitelist:
+            return False
+
+        return self.status_forcelist and status_code in self.status_forcelist
+
+    def is_exhausted(self):
+        """ Are we out of retries? """
+        retry_counts = (self.total, self.connect, self.read, self.redirect)
+        retry_counts = list(filter(None, retry_counts))
+        if not retry_counts:
+            return False
+
+        return min(retry_counts) < 0
+
+    def increment(self, method=None, url=None, response=None, error=None,
+                  _pool=None, _stacktrace=None):
+        """ Return a new Retry object with incremented retry counters.
+
+        :param response: A response object, or None, if the server did not
+            return a response.
+        :type response: :class:`~urllib3.response.HTTPResponse`
+        :param Exception error: An error encountered during the request, or
+            None if the response was received successfully.
+
+        :return: A new ``Retry`` object.
+        """
+        if self.total is False and error:
+            # Disabled, indicate to re-raise the error.
+            raise six.reraise(type(error), error, _stacktrace)
+
+        total = self.total
+        if total is not None:
+            total -= 1
+
+        _observed_errors = self._observed_errors
+        connect = self.connect
+        read = self.read
+        redirect = self.redirect
+        cause = 'unknown'
+
+        if error and self._is_connection_error(error):
+            # Connect retry?
+            if connect is False:
+                raise six.reraise(type(error), error, _stacktrace)
+            elif connect is not None:
+                connect -= 1
+            _observed_errors += 1
+
+        elif error and self._is_read_error(error):
+            # Read retry?
+            if read is False:
+                raise six.reraise(type(error), error, _stacktrace)
+            elif read is not None:
+                read -= 1
+            _observed_errors += 1
+
+        elif response and response.get_redirect_location():
+            # Redirect retry?
+            if redirect is not None:
+                redirect -= 1
+            cause = 'too many redirects'
+
+        else:
+            # Incrementing because of a server error like a 500 in
+            # status_forcelist and a the given method is in the whitelist
+            _observed_errors += 1
+            cause = ResponseError.GENERIC_ERROR
+            if response and response.status:
+                cause = ResponseError.SPECIFIC_ERROR.format(
+                    status_code=response.status)
+
+        new_retry = self.new(
+            total=total,
+            connect=connect, read=read, redirect=redirect,
+            _observed_errors=_observed_errors)
+
+        if new_retry.is_exhausted():
+            raise MaxRetryError(_pool, url, error or ResponseError(cause))
+
+        log.debug("Incremented Retry for (url='%s'): %r", url, new_retry)
+
+        return new_retry
+
+    def __repr__(self):
+        return ('{cls.__name__}(total={self.total}, connect={self.connect}, '
+                'read={self.read}, redirect={self.redirect})').format(
+                    cls=type(self), self=self)
+
+
+# For backwards compatibility (equivalent to pre-v1.9):
+Retry.DEFAULT = Retry(3)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py
new file mode 100644
index 0000000..4a64d7e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py
@@ -0,0 +1,320 @@
+from __future__ import absolute_import
+import errno
+import warnings
+import hmac
+
+from binascii import hexlify, unhexlify
+from hashlib import md5, sha1, sha256
+
+from ..exceptions import SSLError, InsecurePlatformWarning, SNIMissingWarning
+
+
+SSLContext = None
+HAS_SNI = False
+create_default_context = None
+IS_PYOPENSSL = False
+
+# Maps the length of a digest to a possible hash function producing this digest
+HASHFUNC_MAP = {
+    32: md5,
+    40: sha1,
+    64: sha256,
+}
+
+
+def _const_compare_digest_backport(a, b):
+    """
+    Compare two digests of equal length in constant time.
+
+    The digests must be of type str/bytes.
+    Returns True if the digests match, and False otherwise.
+    """
+    result = abs(len(a) - len(b))
+    for l, r in zip(bytearray(a), bytearray(b)):
+        result |= l ^ r
+    return result == 0
+
+
+_const_compare_digest = getattr(hmac, 'compare_digest',
+                                _const_compare_digest_backport)
+
+
+try:  # Test for SSL features
+    import ssl
+    from ssl import wrap_socket, CERT_NONE, PROTOCOL_SSLv23
+    from ssl import HAS_SNI  # Has SNI?
+except ImportError:
+    pass
+
+
+try:
+    from ssl import OP_NO_SSLv2, OP_NO_SSLv3, OP_NO_COMPRESSION
+except ImportError:
+    OP_NO_SSLv2, OP_NO_SSLv3 = 0x1000000, 0x2000000
+    OP_NO_COMPRESSION = 0x20000
+
+# A secure default.
+# Sources for more information on TLS ciphers:
+#
+# - https://wiki.mozilla.org/Security/Server_Side_TLS
+# - https://www.ssllabs.com/projects/best-practices/index.html
+# - https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
+#
+# The general intent is:
+# - Prefer cipher suites that offer perfect forward secrecy (DHE/ECDHE),
+# - prefer ECDHE over DHE for better performance,
+# - prefer any AES-GCM over any AES-CBC for better performance and security,
+# - use 3DES as fallback which is secure but slow,
+# - disable NULL authentication, MD5 MACs and DSS for security reasons.
+DEFAULT_CIPHERS = (
+    'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+HIGH:'
+    'DH+HIGH:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+HIGH:RSA+3DES:!aNULL:'
+    '!eNULL:!MD5'
+)
+
+try:
+    from ssl import SSLContext  # Modern SSL?
+except ImportError:
+    import sys
+
+    class SSLContext(object):  # Platform-specific: Python 2 & 3.1
+        supports_set_ciphers = ((2, 7) <= sys.version_info < (3,) or
+                                (3, 2) <= sys.version_info)
+
+        def __init__(self, protocol_version):
+            self.protocol = protocol_version
+            # Use default values from a real SSLContext
+            self.check_hostname = False
+            self.verify_mode = ssl.CERT_NONE
+            self.ca_certs = None
+            self.options = 0
+            self.certfile = None
+            self.keyfile = None
+            self.ciphers = None
+
+        def load_cert_chain(self, certfile, keyfile):
+            self.certfile = certfile
+            self.keyfile = keyfile
+
+        def load_verify_locations(self, cafile=None, capath=None):
+            self.ca_certs = cafile
+
+            if capath is not None:
+                raise SSLError("CA directories not supported in older Pythons")
+
+        def set_ciphers(self, cipher_suite):
+            if not self.supports_set_ciphers:
+                raise TypeError(
+                    'Your version of Python does not support setting '
+                    'a custom cipher suite. Please upgrade to Python '
+                    '2.7, 3.2, or later if you need this functionality.'
+                )
+            self.ciphers = cipher_suite
+
+        def wrap_socket(self, socket, server_hostname=None, server_side=False):
+            warnings.warn(
+                'A true SSLContext object is not available. This prevents '
+                'urllib3 from configuring SSL appropriately and may cause '
+                'certain SSL connections to fail. You can upgrade to a newer '
+                'version of Python to solve this. For more information, see '
+                'https://urllib3.readthedocs.io/en/latest/security.html'
+                '#insecureplatformwarning.',
+                InsecurePlatformWarning
+            )
+            kwargs = {
+                'keyfile': self.keyfile,
+                'certfile': self.certfile,
+                'ca_certs': self.ca_certs,
+                'cert_reqs': self.verify_mode,
+                'ssl_version': self.protocol,
+                'server_side': server_side,
+            }
+            if self.supports_set_ciphers:  # Platform-specific: Python 2.7+
+                return wrap_socket(socket, ciphers=self.ciphers, **kwargs)
+            else:  # Platform-specific: Python 2.6
+                return wrap_socket(socket, **kwargs)
+
+
+def assert_fingerprint(cert, fingerprint):
+    """
+    Checks if given fingerprint matches the supplied certificate.
+
+    :param cert:
+        Certificate as bytes object.
+    :param fingerprint:
+        Fingerprint as string of hexdigits, can be interspersed by colons.
+    """
+
+    fingerprint = fingerprint.replace(':', '').lower()
+    digest_length = len(fingerprint)
+    hashfunc = HASHFUNC_MAP.get(digest_length)
+    if not hashfunc:
+        raise SSLError(
+            'Fingerprint of invalid length: {0}'.format(fingerprint))
+
+    # We need encode() here for py32; works on py2 and p33.
+    fingerprint_bytes = unhexlify(fingerprint.encode())
+
+    cert_digest = hashfunc(cert).digest()
+
+    if not _const_compare_digest(cert_digest, fingerprint_bytes):
+        raise SSLError('Fingerprints did not match. Expected "{0}", got "{1}".'
+                       .format(fingerprint, hexlify(cert_digest)))
+
+
+def resolve_cert_reqs(candidate):
+    """
+    Resolves the argument to a numeric constant, which can be passed to
+    the wrap_socket function/method from the ssl module.
+    Defaults to :data:`ssl.CERT_NONE`.
+    If given a string it is assumed to be the name of the constant in the
+    :mod:`ssl` module or its abbrevation.
+    (So you can specify `REQUIRED` instead of `CERT_REQUIRED`.
+    If it's neither `None` nor a string we assume it is already the numeric
+    constant which can directly be passed to wrap_socket.
+    """
+    if candidate is None:
+        return CERT_NONE
+
+    if isinstance(candidate, str):
+        res = getattr(ssl, candidate, None)
+        if res is None:
+            res = getattr(ssl, 'CERT_' + candidate)
+        return res
+
+    return candidate
+
+
+def resolve_ssl_version(candidate):
+    """
+    like resolve_cert_reqs
+    """
+    if candidate is None:
+        return PROTOCOL_SSLv23
+
+    if isinstance(candidate, str):
+        res = getattr(ssl, candidate, None)
+        if res is None:
+            res = getattr(ssl, 'PROTOCOL_' + candidate)
+        return res
+
+    return candidate
+
+
+def create_urllib3_context(ssl_version=None, cert_reqs=None,
+                           options=None, ciphers=None):
+    """All arguments have the same meaning as ``ssl_wrap_socket``.
+
+    By default, this function does a lot of the same work that
+    ``ssl.create_default_context`` does on Python 3.4+. It:
+
+    - Disables SSLv2, SSLv3, and compression
+    - Sets a restricted set of server ciphers
+
+    If you wish to enable SSLv3, you can do::
+
+        from urllib3.util import ssl_
+        context = ssl_.create_urllib3_context()
+        context.options &= ~ssl_.OP_NO_SSLv3
+
+    You can do the same to enable compression (substituting ``COMPRESSION``
+    for ``SSLv3`` in the last line above).
+
+    :param ssl_version:
+        The desired protocol version to use. This will default to
+        PROTOCOL_SSLv23 which will negotiate the highest protocol that both
+        the server and your installation of OpenSSL support.
+    :param cert_reqs:
+        Whether to require the certificate verification. This defaults to
+        ``ssl.CERT_REQUIRED``.
+    :param options:
+        Specific OpenSSL options. These default to ``ssl.OP_NO_SSLv2``,
+        ``ssl.OP_NO_SSLv3``, ``ssl.OP_NO_COMPRESSION``.
+    :param ciphers:
+        Which cipher suites to allow the server to select.
+    :returns:
+        Constructed SSLContext object with specified options
+    :rtype: SSLContext
+    """
+    context = SSLContext(ssl_version or ssl.PROTOCOL_SSLv23)
+
+    # Setting the default here, as we may have no ssl module on import
+    cert_reqs = ssl.CERT_REQUIRED if cert_reqs is None else cert_reqs
+
+    if options is None:
+        options = 0
+        # SSLv2 is easily broken and is considered harmful and dangerous
+        options |= OP_NO_SSLv2
+        # SSLv3 has several problems and is now dangerous
+        options |= OP_NO_SSLv3
+        # Disable compression to prevent CRIME attacks for OpenSSL 1.0+
+        # (issue #309)
+        options |= OP_NO_COMPRESSION
+
+    context.options |= options
+
+    if getattr(context, 'supports_set_ciphers', True):  # Platform-specific: Python 2.6
+        context.set_ciphers(ciphers or DEFAULT_CIPHERS)
+
+    context.verify_mode = cert_reqs
+    if getattr(context, 'check_hostname', None) is not None:  # Platform-specific: Python 3.2
+        # We do our own verification, including fingerprints and alternative
+        # hostnames. So disable it here
+        context.check_hostname = False
+    return context
+
+
+def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
+                    ca_certs=None, server_hostname=None,
+                    ssl_version=None, ciphers=None, ssl_context=None,
+                    ca_cert_dir=None):
+    """
+    All arguments except for server_hostname, ssl_context, and ca_cert_dir have
+    the same meaning as they do when using :func:`ssl.wrap_socket`.
+
+    :param server_hostname:
+        When SNI is supported, the expected hostname of the certificate
+    :param ssl_context:
+        A pre-made :class:`SSLContext` object. If none is provided, one will
+        be created using :func:`create_urllib3_context`.
+    :param ciphers:
+        A string of ciphers we wish the client to support. This is not
+        supported on Python 2.6 as the ssl module does not support it.
+    :param ca_cert_dir:
+        A directory containing CA certificates in multiple separate files, as
+        supported by OpenSSL's -CApath flag or the capath argument to
+        SSLContext.load_verify_locations().
+    """
+    context = ssl_context
+    if context is None:
+        context = create_urllib3_context(ssl_version, cert_reqs,
+                                         ciphers=ciphers)
+
+    if ca_certs or ca_cert_dir:
+        try:
+            context.load_verify_locations(ca_certs, ca_cert_dir)
+        except IOError as e:  # Platform-specific: Python 2.6, 2.7, 3.2
+            raise SSLError(e)
+        # Py33 raises FileNotFoundError which subclasses OSError
+        # These are not equivalent unless we check the errno attribute
+        except OSError as e:  # Platform-specific: Python 3.3 and beyond
+            if e.errno == errno.ENOENT:
+                raise SSLError(e)
+            raise
+
+    if certfile:
+        context.load_cert_chain(certfile, keyfile)
+    if HAS_SNI:  # Platform-specific: OpenSSL with enabled SNI
+        return context.wrap_socket(sock, server_hostname=server_hostname)
+
+    warnings.warn(
+        'An HTTPS request has been made, but the SNI (Subject Name '
+        'Indication) extension to TLS is not available on this platform. '
+        'This may cause the server to present an incorrect TLS '
+        'certificate, which can cause validation failures. You can upgrade to '
+        'a newer version of Python to solve this. For more information, see '
+        'https://urllib3.readthedocs.io/en/latest/security.html'
+        '#snimissingwarning.',
+        SNIMissingWarning
+    )
+    return context.wrap_socket(sock)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py
new file mode 100644
index 0000000..ff62f47
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py
@@ -0,0 +1,242 @@
+from __future__ import absolute_import
+# The default socket timeout, used by httplib to indicate that no timeout was
+# specified by the user
+from socket import _GLOBAL_DEFAULT_TIMEOUT
+import time
+
+from ..exceptions import TimeoutStateError
+
+# A sentinel value to indicate that no timeout was specified by the user in
+# urllib3
+_Default = object()
+
+
+def current_time():
+    """
+    Retrieve the current time. This function is mocked out in unit testing.
+    """
+    return time.time()
+
+
+class Timeout(object):
+    """ Timeout configuration.
+
+    Timeouts can be defined as a default for a pool::
+
+        timeout = Timeout(connect=2.0, read=7.0)
+        http = PoolManager(timeout=timeout)
+        response = http.request('GET', 'http://example.com/')
+
+    Or per-request (which overrides the default for the pool)::
+
+        response = http.request('GET', 'http://example.com/', timeout=Timeout(10))
+
+    Timeouts can be disabled by setting all the parameters to ``None``::
+
+        no_timeout = Timeout(connect=None, read=None)
+        response = http.request('GET', 'http://example.com/, timeout=no_timeout)
+
+
+    :param total:
+        This combines the connect and read timeouts into one; the read timeout
+        will be set to the time leftover from the connect attempt. In the
+        event that both a connect timeout and a total are specified, or a read
+        timeout and a total are specified, the shorter timeout will be applied.
+
+        Defaults to None.
+
+    :type total: integer, float, or None
+
+    :param connect:
+        The maximum amount of time to wait for a connection attempt to a server
+        to succeed. Omitting the parameter will default the connect timeout to
+        the system default, probably `the global default timeout in socket.py
+        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
+        None will set an infinite timeout for connection attempts.
+
+    :type connect: integer, float, or None
+
+    :param read:
+        The maximum amount of time to wait between consecutive
+        read operations for a response from the server. Omitting
+        the parameter will default the read timeout to the system
+        default, probably `the global default timeout in socket.py
+        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
+        None will set an infinite timeout.
+
+    :type read: integer, float, or None
+
+    .. note::
+
+        Many factors can affect the total amount of time for urllib3 to return
+        an HTTP response.
+
+        For example, Python's DNS resolver does not obey the timeout specified
+        on the socket. Other factors that can affect total request time include
+        high CPU load, high swap, the program running at a low priority level,
+        or other behaviors.
+
+        In addition, the read and total timeouts only measure the time between
+        read operations on the socket connecting the client and the server,
+        not the total amount of time for the request to return a complete
+        response. For most requests, the timeout is raised because the server
+        has not sent the first byte in the specified time. This is not always
+        the case; if a server streams one byte every fifteen seconds, a timeout
+        of 20 seconds will not trigger, even though the request will take
+        several minutes to complete.
+
+        If your goal is to cut off any request after a set amount of wall clock
+        time, consider having a second "watcher" thread to cut off a slow
+        request.
+    """
+
+    #: A sentinel object representing the default timeout value
+    DEFAULT_TIMEOUT = _GLOBAL_DEFAULT_TIMEOUT
+
+    def __init__(self, total=None, connect=_Default, read=_Default):
+        self._connect = self._validate_timeout(connect, 'connect')
+        self._read = self._validate_timeout(read, 'read')
+        self.total = self._validate_timeout(total, 'total')
+        self._start_connect = None
+
+    def __str__(self):
+        return '%s(connect=%r, read=%r, total=%r)' % (
+            type(self).__name__, self._connect, self._read, self.total)
+
+    @classmethod
+    def _validate_timeout(cls, value, name):
+        """ Check that a timeout attribute is valid.
+
+        :param value: The timeout value to validate
+        :param name: The name of the timeout attribute to validate. This is
+            used to specify in error messages.
+        :return: The validated and casted version of the given value.
+        :raises ValueError: If the type is not an integer or a float, or if it
+            is a numeric value less than zero.
+        """
+        if value is _Default:
+            return cls.DEFAULT_TIMEOUT
+
+        if value is None or value is cls.DEFAULT_TIMEOUT:
+            return value
+
+        try:
+            float(value)
+        except (TypeError, ValueError):
+            raise ValueError("Timeout value %s was %s, but it must be an "
+                             "int or float." % (name, value))
+
+        try:
+            if value < 0:
+                raise ValueError("Attempted to set %s timeout to %s, but the "
+                                 "timeout cannot be set to a value less "
+                                 "than 0." % (name, value))
+        except TypeError:  # Python 3
+            raise ValueError("Timeout value %s was %s, but it must be an "
+                             "int or float." % (name, value))
+
+        return value
+
+    @classmethod
+    def from_float(cls, timeout):
+        """ Create a new Timeout from a legacy timeout value.
+
+        The timeout value used by httplib.py sets the same timeout on the
+        connect(), and recv() socket requests. This creates a :class:`Timeout`
+        object that sets the individual timeouts to the ``timeout`` value
+        passed to this function.
+
+        :param timeout: The legacy timeout value.
+        :type timeout: integer, float, sentinel default object, or None
+        :return: Timeout object
+        :rtype: :class:`Timeout`
+        """
+        return Timeout(read=timeout, connect=timeout)
+
+    def clone(self):
+        """ Create a copy of the timeout object
+
+        Timeout properties are stored per-pool but each request needs a fresh
+        Timeout object to ensure each one has its own start/stop configured.
+
+        :return: a copy of the timeout object
+        :rtype: :class:`Timeout`
+        """
+        # We can't use copy.deepcopy because that will also create a new object
+        # for _GLOBAL_DEFAULT_TIMEOUT, which socket.py uses as a sentinel to
+        # detect the user default.
+        return Timeout(connect=self._connect, read=self._read,
+                       total=self.total)
+
+    def start_connect(self):
+        """ Start the timeout clock, used during a connect() attempt
+
+        :raises urllib3.exceptions.TimeoutStateError: if you attempt
+            to start a timer that has been started already.
+        """
+        if self._start_connect is not None:
+            raise TimeoutStateError("Timeout timer has already been started.")
+        self._start_connect = current_time()
+        return self._start_connect
+
+    def get_connect_duration(self):
+        """ Gets the time elapsed since the call to :meth:`start_connect`.
+
+        :return: Elapsed time.
+        :rtype: float
+        :raises urllib3.exceptions.TimeoutStateError: if you attempt
+            to get duration for a timer that hasn't been started.
+        """
+        if self._start_connect is None:
+            raise TimeoutStateError("Can't get connect duration for timer "
+                                    "that has not started.")
+        return current_time() - self._start_connect
+
+    @property
+    def connect_timeout(self):
+        """ Get the value to use when setting a connection timeout.
+
+        This will be a positive float or integer, the value None
+        (never timeout), or the default system timeout.
+
+        :return: Connect timeout.
+        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
+        """
+        if self.total is None:
+            return self._connect
+
+        if self._connect is None or self._connect is self.DEFAULT_TIMEOUT:
+            return self.total
+
+        return min(self._connect, self.total)
+
+    @property
+    def read_timeout(self):
+        """ Get the value for the read timeout.
+
+        This assumes some time has elapsed in the connection timeout and
+        computes the read timeout appropriately.
+
+        If self.total is set, the read timeout is dependent on the amount of
+        time taken by the connect timeout. If the connection time has not been
+        established, a :exc:`~urllib3.exceptions.TimeoutStateError` will be
+        raised.
+
+        :return: Value to use for the read timeout.
+        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
+        :raises urllib3.exceptions.TimeoutStateError: If :meth:`start_connect`
+            has not yet been called on this object.
+        """
+        if (self.total is not None and
+                self.total is not self.DEFAULT_TIMEOUT and
+                self._read is not None and
+                self._read is not self.DEFAULT_TIMEOUT):
+            # In case the connect timeout has not yet been established.
+            if self._start_connect is None:
+                return self._read
+            return max(0, min(self.total - self.get_connect_duration(),
+                              self._read))
+        elif self.total is not None and self.total is not self.DEFAULT_TIMEOUT:
+            return max(0, self.total - self.get_connect_duration())
+        else:
+            return self._read
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py
new file mode 100644
index 0000000..e996204
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py
@@ -0,0 +1,217 @@
+from __future__ import absolute_import
+from collections import namedtuple
+
+from ..exceptions import LocationParseError
+
+
+url_attrs = ['scheme', 'auth', 'host', 'port', 'path', 'query', 'fragment']
+
+
+class Url(namedtuple('Url', url_attrs)):
+    """
+    Datastructure for representing an HTTP URL. Used as a return value for
+    :func:`parse_url`.
+    """
+    slots = ()
+
+    def __new__(cls, scheme=None, auth=None, host=None, port=None, path=None,
+                query=None, fragment=None):
+        if path and not path.startswith('/'):
+            path = '/' + path
+        return super(Url, cls).__new__(cls, scheme, auth, host, port, path,
+                                       query, fragment)
+
+    @property
+    def hostname(self):
+        """For backwards-compatibility with urlparse. We're nice like that."""
+        return self.host
+
+    @property
+    def request_uri(self):
+        """Absolute path including the query string."""
+        uri = self.path or '/'
+
+        if self.query is not None:
+            uri += '?' + self.query
+
+        return uri
+
+    @property
+    def netloc(self):
+        """Network location including host and port"""
+        if self.port:
+            return '%s:%d' % (self.host, self.port)
+        return self.host
+
+    @property
+    def url(self):
+        """
+        Convert self into a url
+
+        This function should more or less round-trip with :func:`.parse_url`. The
+        returned url may not be exactly the same as the url inputted to
+        :func:`.parse_url`, but it should be equivalent by the RFC (e.g., urls
+        with a blank port will have : removed).
+
+        Example: ::
+
+            >>> U = parse_url('http://google.com/mail/')
+            >>> U.url
+            'http://google.com/mail/'
+            >>> Url('http', 'username:password', 'host.com', 80,
+            ... '/path', 'query', 'fragment').url
+            'http://username:password@host.com:80/path?query#fragment'
+        """
+        scheme, auth, host, port, path, query, fragment = self
+        url = ''
+
+        # We use "is not None" we want things to happen with empty strings (or 0 port)
+        if scheme is not None:
+            url += scheme + '://'
+        if auth is not None:
+            url += auth + '@'
+        if host is not None:
+            url += host
+        if port is not None:
+            url += ':' + str(port)
+        if path is not None:
+            url += path
+        if query is not None:
+            url += '?' + query
+        if fragment is not None:
+            url += '#' + fragment
+
+        return url
+
+    def __str__(self):
+        return self.url
+
+
+def split_first(s, delims):
+    """
+    Given a string and an iterable of delimiters, split on the first found
+    delimiter. Return two split parts and the matched delimiter.
+
+    If not found, then the first part is the full input string.
+
+    Example::
+
+        >>> split_first('foo/bar?baz', '?/=')
+        ('foo', 'bar?baz', '/')
+        >>> split_first('foo/bar?baz', '123')
+        ('foo/bar?baz', '', None)
+
+    Scales linearly with number of delims. Not ideal for large number of delims.
+    """
+    min_idx = None
+    min_delim = None
+    for d in delims:
+        idx = s.find(d)
+        if idx < 0:
+            continue
+
+        if min_idx is None or idx < min_idx:
+            min_idx = idx
+            min_delim = d
+
+    if min_idx is None or min_idx < 0:
+        return s, '', None
+
+    return s[:min_idx], s[min_idx + 1:], min_delim
+
+
+def parse_url(url):
+    """
+    Given a url, return a parsed :class:`.Url` namedtuple. Best-effort is
+    performed to parse incomplete urls. Fields not provided will be None.
+
+    Partly backwards-compatible with :mod:`urlparse`.
+
+    Example::
+
+        >>> parse_url('http://google.com/mail/')
+        Url(scheme='http', host='google.com', port=None, path='/mail/', ...)
+        >>> parse_url('google.com:80')
+        Url(scheme=None, host='google.com', port=80, path=None, ...)
+        >>> parse_url('/foo?bar')
+        Url(scheme=None, host=None, port=None, path='/foo', query='bar', ...)
+    """
+
+    # While this code has overlap with stdlib's urlparse, it is much
+    # simplified for our needs and less annoying.
+    # Additionally, this implementations does silly things to be optimal
+    # on CPython.
+
+    if not url:
+        # Empty
+        return Url()
+
+    scheme = None
+    auth = None
+    host = None
+    port = None
+    path = None
+    fragment = None
+    query = None
+
+    # Scheme
+    if '://' in url:
+        scheme, url = url.split('://', 1)
+
+    # Find the earliest Authority Terminator
+    # (http://tools.ietf.org/html/rfc3986#section-3.2)
+    url, path_, delim = split_first(url, ['/', '?', '#'])
+
+    if delim:
+        # Reassemble the path
+        path = delim + path_
+
+    # Auth
+    if '@' in url:
+        # Last '@' denotes end of auth part
+        auth, url = url.rsplit('@', 1)
+
+    # IPv6
+    if url and url[0] == '[':
+        host, url = url.split(']', 1)
+        host += ']'
+
+    # Port
+    if ':' in url:
+        _host, port = url.split(':', 1)
+
+        if not host:
+            host = _host
+
+        if port:
+            # If given, ports must be integers.
+            if not port.isdigit():
+                raise LocationParseError(url)
+            port = int(port)
+        else:
+            # Blank ports are cool, too. (rfc3986#section-3.2.3)
+            port = None
+
+    elif not host and url:
+        host = url
+
+    if not path:
+        return Url(scheme, auth, host, port, path, query, fragment)
+
+    # Fragment
+    if '#' in path:
+        path, fragment = path.split('#', 1)
+
+    # Query
+    if '?' in path:
+        path, query = path.split('?', 1)
+
+    return Url(scheme, auth, host, port, path, query, fragment)
+
+
+def get_host(url):
+    """
+    Deprecated. Use :func:`.parse_url` instead.
+    """
+    p = parse_url(url)
+    return p.scheme or 'http', p.hostname, p.port
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py
new file mode 100644
index 0000000..bcbcc88
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py
@@ -0,0 +1,712 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.session
+~~~~~~~~~~~~~~~~
+
+This module provides a Session object to manage and persist settings across
+requests (cookies, auth, proxies).
+"""
+import os
+from collections import Mapping
+from datetime import datetime
+
+from .auth import _basic_auth_str
+from .compat import cookielib, OrderedDict, urljoin, urlparse
+from .cookies import (
+    cookiejar_from_dict, extract_cookies_to_jar, RequestsCookieJar, merge_cookies)
+from .models import Request, PreparedRequest, DEFAULT_REDIRECT_LIMIT
+from .hooks import default_hooks, dispatch_hook
+from .utils import to_key_val_list, default_headers, to_native_string
+from .exceptions import (
+    TooManyRedirects, InvalidSchema, ChunkedEncodingError, ContentDecodingError)
+from .packages.urllib3._collections import RecentlyUsedContainer
+from .structures import CaseInsensitiveDict
+
+from .adapters import HTTPAdapter
+
+from .utils import (
+    requote_uri, get_environ_proxies, get_netrc_auth, should_bypass_proxies,
+    get_auth_from_url
+)
+
+from .status_codes import codes
+
+# formerly defined here, reexposed here for backward compatibility
+from .models import REDIRECT_STATI
+
+REDIRECT_CACHE_SIZE = 1000
+
+
+def merge_setting(request_setting, session_setting, dict_class=OrderedDict):
+    """Determines appropriate setting for a given request, taking into account
+    the explicit setting on that request, and the setting in the session. If a
+    setting is a dictionary, they will be merged together using `dict_class`
+    """
+
+    if session_setting is None:
+        return request_setting
+
+    if request_setting is None:
+        return session_setting
+
+    # Bypass if not a dictionary (e.g. verify)
+    if not (
+            isinstance(session_setting, Mapping) and
+            isinstance(request_setting, Mapping)
+    ):
+        return request_setting
+
+    merged_setting = dict_class(to_key_val_list(session_setting))
+    merged_setting.update(to_key_val_list(request_setting))
+
+    # Remove keys that are set to None. Extract keys first to avoid altering
+    # the dictionary during iteration.
+    none_keys = [k for (k, v) in merged_setting.items() if v is None]
+    for key in none_keys:
+        del merged_setting[key]
+
+    return merged_setting
+
+
+def merge_hooks(request_hooks, session_hooks, dict_class=OrderedDict):
+    """Properly merges both requests and session hooks.
+
+    This is necessary because when request_hooks == {'response': []}, the
+    merge breaks Session hooks entirely.
+    """
+    if session_hooks is None or session_hooks.get('response') == []:
+        return request_hooks
+
+    if request_hooks is None or request_hooks.get('response') == []:
+        return session_hooks
+
+    return merge_setting(request_hooks, session_hooks, dict_class)
+
+
+class SessionRedirectMixin(object):
+    def resolve_redirects(self, resp, req, stream=False, timeout=None,
+                          verify=True, cert=None, proxies=None, **adapter_kwargs):
+        """Receives a Response. Returns a generator of Responses."""
+
+        i = 0
+        hist = [] # keep track of history
+
+        while resp.is_redirect:
+            prepared_request = req.copy()
+
+            if i > 0:
+                # Update history and keep track of redirects.
+                hist.append(resp)
+                new_hist = list(hist)
+                resp.history = new_hist
+
+            try:
+                resp.content  # Consume socket so it can be released
+            except (ChunkedEncodingError, ContentDecodingError, RuntimeError):
+                resp.raw.read(decode_content=False)
+
+            if i >= self.max_redirects:
+                raise TooManyRedirects('Exceeded %s redirects.' % self.max_redirects, response=resp)
+
+            # Release the connection back into the pool.
+            resp.close()
+
+            url = resp.headers['location']
+
+            # Handle redirection without scheme (see: RFC 1808 Section 4)
+            if url.startswith('//'):
+                parsed_rurl = urlparse(resp.url)
+                url = '%s:%s' % (parsed_rurl.scheme, url)
+
+            # The scheme should be lower case...
+            parsed = urlparse(url)
+            url = parsed.geturl()
+
+            # Facilitate relative 'location' headers, as allowed by RFC 7231.
+            # (e.g. '/path/to/resource' instead of 'http://domain.tld/path/to/resource')
+            # Compliant with RFC3986, we percent encode the url.
+            if not parsed.netloc:
+                url = urljoin(resp.url, requote_uri(url))
+            else:
+                url = requote_uri(url)
+
+            prepared_request.url = to_native_string(url)
+            # Cache the url, unless it redirects to itself.
+            if resp.is_permanent_redirect and req.url != prepared_request.url:
+                self.redirect_cache[req.url] = prepared_request.url
+
+            self.rebuild_method(prepared_request, resp)
+
+            # https://github.com/kennethreitz/requests/issues/1084
+            if resp.status_code not in (codes.temporary_redirect, codes.permanent_redirect):
+                # https://github.com/kennethreitz/requests/issues/3490
+                purged_headers = ('Content-Length', 'Content-Type', 'Transfer-Encoding')
+                for header in purged_headers:
+                    prepared_request.headers.pop(header, None)
+                prepared_request.body = None
+
+            headers = prepared_request.headers
+            try:
+                del headers['Cookie']
+            except KeyError:
+                pass
+
+            # Extract any cookies sent on the response to the cookiejar
+            # in the new request. Because we've mutated our copied prepared
+            # request, use the old one that we haven't yet touched.
+            extract_cookies_to_jar(prepared_request._cookies, req, resp.raw)
+            prepared_request._cookies.update(self.cookies)
+            prepared_request.prepare_cookies(prepared_request._cookies)
+
+            # Rebuild auth and proxy information.
+            proxies = self.rebuild_proxies(prepared_request, proxies)
+            self.rebuild_auth(prepared_request, resp)
+
+            # Override the original request.
+            req = prepared_request
+
+            resp = self.send(
+                req,
+                stream=stream,
+                timeout=timeout,
+                verify=verify,
+                cert=cert,
+                proxies=proxies,
+                allow_redirects=False,
+                **adapter_kwargs
+            )
+
+            extract_cookies_to_jar(self.cookies, prepared_request, resp.raw)
+
+            i += 1
+            yield resp
+
+    def rebuild_auth(self, prepared_request, response):
+        """When being redirected we may want to strip authentication from the
+        request to avoid leaking credentials. This method intelligently removes
+        and reapplies authentication where possible to avoid credential loss.
+        """
+        headers = prepared_request.headers
+        url = prepared_request.url
+
+        if 'Authorization' in headers:
+            # If we get redirected to a new host, we should strip out any
+            # authentication headers.
+            original_parsed = urlparse(response.request.url)
+            redirect_parsed = urlparse(url)
+
+            if (original_parsed.hostname != redirect_parsed.hostname):
+                del headers['Authorization']
+
+        # .netrc might have more auth for us on our new host.
+        new_auth = get_netrc_auth(url) if self.trust_env else None
+        if new_auth is not None:
+            prepared_request.prepare_auth(new_auth)
+
+        return
+
+    def rebuild_proxies(self, prepared_request, proxies):
+        """This method re-evaluates the proxy configuration by considering the
+        environment variables. If we are redirected to a URL covered by
+        NO_PROXY, we strip the proxy configuration. Otherwise, we set missing
+        proxy keys for this URL (in case they were stripped by a previous
+        redirect).
+
+        This method also replaces the Proxy-Authorization header where
+        necessary.
+
+        :rtype: dict
+        """
+        headers = prepared_request.headers
+        url = prepared_request.url
+        scheme = urlparse(url).scheme
+        new_proxies = proxies.copy() if proxies is not None else {}
+
+        if self.trust_env and not should_bypass_proxies(url):
+            environ_proxies = get_environ_proxies(url)
+
+            proxy = environ_proxies.get('all', environ_proxies.get(scheme))
+
+            if proxy:
+                new_proxies.setdefault(scheme, proxy)
+
+        if 'Proxy-Authorization' in headers:
+            del headers['Proxy-Authorization']
+
+        try:
+            username, password = get_auth_from_url(new_proxies[scheme])
+        except KeyError:
+            username, password = None, None
+
+        if username and password:
+            headers['Proxy-Authorization'] = _basic_auth_str(username, password)
+
+        return new_proxies
+
+    def rebuild_method(self, prepared_request, response):
+        """When being redirected we may want to change the method of the request
+        based on certain specs or browser behavior.
+        """
+        method = prepared_request.method
+
+        # http://tools.ietf.org/html/rfc7231#section-6.4.4
+        if response.status_code == codes.see_other and method != 'HEAD':
+            method = 'GET'
+
+        # Do what the browsers do, despite standards...
+        # First, turn 302s into GETs.
+        if response.status_code == codes.found and method != 'HEAD':
+            method = 'GET'
+
+        # Second, if a POST is responded to with a 301, turn it into a GET.
+        # This bizarre behaviour is explained in Issue 1704.
+        if response.status_code == codes.moved and method == 'POST':
+            method = 'GET'
+
+        prepared_request.method = method
+
+
+class Session(SessionRedirectMixin):
+    """A Requests session.
+
+    Provides cookie persistence, connection-pooling, and configuration.
+
+    Basic Usage::
+
+      >>> import requests
+      >>> s = requests.Session()
+      >>> s.get('http://httpbin.org/get')
+      <Response [200]>
+
+    Or as a context manager::
+
+      >>> with requests.Session() as s:
+      >>>     s.get('http://httpbin.org/get')
+      <Response [200]>
+    """
+
+    __attrs__ = [
+        'headers', 'cookies', 'auth', 'proxies', 'hooks', 'params', 'verify',
+        'cert', 'prefetch', 'adapters', 'stream', 'trust_env',
+        'max_redirects',
+    ]
+
+    def __init__(self):
+
+        #: A case-insensitive dictionary of headers to be sent on each
+        #: :class:`Request <Request>` sent from this
+        #: :class:`Session <Session>`.
+        self.headers = default_headers()
+
+        #: Default Authentication tuple or object to attach to
+        #: :class:`Request <Request>`.
+        self.auth = None
+
+        #: Dictionary mapping protocol or protocol and host to the URL of the proxy
+        #: (e.g. {'http': 'foo.bar:3128', 'http://host.name': 'foo.bar:4012'}) to
+        #: be used on each :class:`Request <Request>`.
+        self.proxies = {}
+
+        #: Event-handling hooks.
+        self.hooks = default_hooks()
+
+        #: Dictionary of querystring data to attach to each
+        #: :class:`Request <Request>`. The dictionary values may be lists for
+        #: representing multivalued query parameters.
+        self.params = {}
+
+        #: Stream response content default.
+        self.stream = False
+
+        #: SSL Verification default.
+        self.verify = True
+
+        #: SSL certificate default.
+        self.cert = None
+
+        #: Maximum number of redirects allowed. If the request exceeds this
+        #: limit, a :class:`TooManyRedirects` exception is raised.
+        #: This defaults to requests.models.DEFAULT_REDIRECT_LIMIT, which is
+        #: 30.
+        self.max_redirects = DEFAULT_REDIRECT_LIMIT
+
+        #: Trust environment settings for proxy configuration, default
+        #: authentication and similar.
+        self.trust_env = True
+
+        #: A CookieJar containing all currently outstanding cookies set on this
+        #: session. By default it is a
+        #: :class:`RequestsCookieJar <requests.cookies.RequestsCookieJar>`, but
+        #: may be any other ``cookielib.CookieJar`` compatible object.
+        self.cookies = cookiejar_from_dict({})
+
+        # Default connection adapters.
+        self.adapters = OrderedDict()
+        self.mount('https://', HTTPAdapter())
+        self.mount('http://', HTTPAdapter())
+
+        # Only store 1000 redirects to prevent using infinite memory
+        self.redirect_cache = RecentlyUsedContainer(REDIRECT_CACHE_SIZE)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *args):
+        self.close()
+
+    def prepare_request(self, request):
+        """Constructs a :class:`PreparedRequest <PreparedRequest>` for
+        transmission and returns it. The :class:`PreparedRequest` has settings
+        merged from the :class:`Request <Request>` instance and those of the
+        :class:`Session`.
+
+        :param request: :class:`Request` instance to prepare with this
+            session's settings.
+        :rtype: requests.PreparedRequest
+        """
+        cookies = request.cookies or {}
+
+        # Bootstrap CookieJar.
+        if not isinstance(cookies, cookielib.CookieJar):
+            cookies = cookiejar_from_dict(cookies)
+
+        # Merge with session cookies
+        merged_cookies = merge_cookies(
+            merge_cookies(RequestsCookieJar(), self.cookies), cookies)
+
+        # Set environment's basic authentication if not explicitly set.
+        auth = request.auth
+        if self.trust_env and not auth and not self.auth:
+            auth = get_netrc_auth(request.url)
+
+        p = PreparedRequest()
+        p.prepare(
+            method=request.method.upper(),
+            url=request.url,
+            files=request.files,
+            data=request.data,
+            json=request.json,
+            headers=merge_setting(request.headers, self.headers, dict_class=CaseInsensitiveDict),
+            params=merge_setting(request.params, self.params),
+            auth=merge_setting(auth, self.auth),
+            cookies=merged_cookies,
+            hooks=merge_hooks(request.hooks, self.hooks),
+        )
+        return p
+
+    def request(self, method, url,
+        params=None,
+        data=None,
+        headers=None,
+        cookies=None,
+        files=None,
+        auth=None,
+        timeout=None,
+        allow_redirects=True,
+        proxies=None,
+        hooks=None,
+        stream=None,
+        verify=None,
+        cert=None,
+        json=None):
+        """Constructs a :class:`Request <Request>`, prepares it and sends it.
+        Returns :class:`Response <Response>` object.
+
+        :param method: method for the new :class:`Request` object.
+        :param url: URL for the new :class:`Request` object.
+        :param params: (optional) Dictionary or bytes to be sent in the query
+            string for the :class:`Request`.
+        :param data: (optional) Dictionary, bytes, or file-like object to send
+            in the body of the :class:`Request`.
+        :param json: (optional) json to send in the body of the
+            :class:`Request`.
+        :param headers: (optional) Dictionary of HTTP Headers to send with the
+            :class:`Request`.
+        :param cookies: (optional) Dict or CookieJar object to send with the
+            :class:`Request`.
+        :param files: (optional) Dictionary of ``'filename': file-like-objects``
+            for multipart encoding upload.
+        :param auth: (optional) Auth tuple or callable to enable
+            Basic/Digest/Custom HTTP Auth.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param allow_redirects: (optional) Set to True by default.
+        :type allow_redirects: bool
+        :param proxies: (optional) Dictionary mapping protocol or protocol and
+            hostname to the URL of the proxy.
+        :param stream: (optional) whether to immediately download the response
+            content. Defaults to ``False``.
+        :param verify: (optional) whether the SSL cert will be verified.
+            A CA_BUNDLE path can also be provided. Defaults to ``True``.
+        :param cert: (optional) if String, path to ssl client cert file (.pem).
+            If Tuple, ('cert', 'key') pair.
+        :rtype: requests.Response
+        """
+        # Create the Request.
+        req = Request(
+            method = method.upper(),
+            url = url,
+            headers = headers,
+            files = files,
+            data = data or {},
+            json = json,
+            params = params or {},
+            auth = auth,
+            cookies = cookies,
+            hooks = hooks,
+        )
+        prep = self.prepare_request(req)
+
+        proxies = proxies or {}
+
+        settings = self.merge_environment_settings(
+            prep.url, proxies, stream, verify, cert
+        )
+
+        # Send the request.
+        send_kwargs = {
+            'timeout': timeout,
+            'allow_redirects': allow_redirects,
+        }
+        send_kwargs.update(settings)
+        resp = self.send(prep, **send_kwargs)
+
+        return resp
+
+    def get(self, url, **kwargs):
+        """Sends a GET request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', True)
+        return self.request('GET', url, **kwargs)
+
+    def options(self, url, **kwargs):
+        """Sends a OPTIONS request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', True)
+        return self.request('OPTIONS', url, **kwargs)
+
+    def head(self, url, **kwargs):
+        """Sends a HEAD request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', False)
+        return self.request('HEAD', url, **kwargs)
+
+    def post(self, url, data=None, json=None, **kwargs):
+        """Sends a POST request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param json: (optional) json to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('POST', url, data=data, json=json, **kwargs)
+
+    def put(self, url, data=None, **kwargs):
+        """Sends a PUT request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('PUT', url, data=data, **kwargs)
+
+    def patch(self, url, data=None, **kwargs):
+        """Sends a PATCH request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('PATCH', url,  data=data, **kwargs)
+
+    def delete(self, url, **kwargs):
+        """Sends a DELETE request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('DELETE', url, **kwargs)
+
+    def send(self, request, **kwargs):
+        """
+        Send a given PreparedRequest.
+
+        :rtype: requests.Response
+        """
+        # Set defaults that the hooks can utilize to ensure they always have
+        # the correct parameters to reproduce the previous request.
+        kwargs.setdefault('stream', self.stream)
+        kwargs.setdefault('verify', self.verify)
+        kwargs.setdefault('cert', self.cert)
+        kwargs.setdefault('proxies', self.proxies)
+
+        # It's possible that users might accidentally send a Request object.
+        # Guard against that specific failure case.
+        if isinstance(request, Request):
+            raise ValueError('You can only send PreparedRequests.')
+
+        # Set up variables needed for resolve_redirects and dispatching of hooks
+        allow_redirects = kwargs.pop('allow_redirects', True)
+        stream = kwargs.get('stream')
+        hooks = request.hooks
+
+        # Resolve URL in redirect cache, if available.
+        if allow_redirects:
+            checked_urls = set()
+            while request.url in self.redirect_cache:
+                checked_urls.add(request.url)
+                new_url = self.redirect_cache.get(request.url)
+                if new_url in checked_urls:
+                    break
+                request.url = new_url
+
+        # Get the appropriate adapter to use
+        adapter = self.get_adapter(url=request.url)
+
+        # Start time (approximately) of the request
+        start = datetime.utcnow()
+
+        # Send the request
+        r = adapter.send(request, **kwargs)
+
+        # Total elapsed time of the request (approximately)
+        r.elapsed = datetime.utcnow() - start
+
+        # Response manipulation hooks
+        r = dispatch_hook('response', hooks, r, **kwargs)
+
+        # Persist cookies
+        if r.history:
+
+            # If the hooks create history then we want those cookies too
+            for resp in r.history:
+                extract_cookies_to_jar(self.cookies, resp.request, resp.raw)
+
+        extract_cookies_to_jar(self.cookies, request, r.raw)
+
+        # Redirect resolving generator.
+        gen = self.resolve_redirects(r, request, **kwargs)
+
+        # Resolve redirects if allowed.
+        history = [resp for resp in gen] if allow_redirects else []
+
+        # Shuffle things around if there's history.
+        if history:
+            # Insert the first (original) request at the start
+            history.insert(0, r)
+            # Get the last request made
+            r = history.pop()
+            r.history = history
+
+        if not stream:
+            r.content
+
+        return r
+
+    def merge_environment_settings(self, url, proxies, stream, verify, cert):
+        """
+        Check the environment and merge it with some settings.
+
+        :rtype: dict
+        """
+        # Gather clues from the surrounding environment.
+        if self.trust_env:
+            # Set environment's proxies.
+            env_proxies = get_environ_proxies(url) or {}
+            for (k, v) in env_proxies.items():
+                proxies.setdefault(k, v)
+
+            # Look for requests environment configuration and be compatible
+            # with cURL.
+            if verify is True or verify is None:
+                verify = (os.environ.get('REQUESTS_CA_BUNDLE') or
+                          os.environ.get('CURL_CA_BUNDLE'))
+
+        # Merge all the kwargs.
+        proxies = merge_setting(proxies, self.proxies)
+        stream = merge_setting(stream, self.stream)
+        verify = merge_setting(verify, self.verify)
+        cert = merge_setting(cert, self.cert)
+
+        return {'verify': verify, 'proxies': proxies, 'stream': stream,
+                'cert': cert}
+
+    def get_adapter(self, url):
+        """
+        Returns the appropriate connection adapter for the given URL.
+
+        :rtype: requests.adapters.BaseAdapter
+        """
+        for (prefix, adapter) in self.adapters.items():
+
+            if url.lower().startswith(prefix):
+                return adapter
+
+        # Nothing matches :-/
+        raise InvalidSchema("No connection adapters were found for '%s'" % url)
+
+    def close(self):
+        """Closes all adapters and as such the session"""
+        for v in self.adapters.values():
+            v.close()
+
+    def mount(self, prefix, adapter):
+        """Registers a connection adapter to a prefix.
+
+        Adapters are sorted in descending order by key length.
+        """
+        self.adapters[prefix] = adapter
+        keys_to_move = [k for k in self.adapters if len(k) < len(prefix)]
+
+        for key in keys_to_move:
+            self.adapters[key] = self.adapters.pop(key)
+
+    def __getstate__(self):
+        state = dict((attr, getattr(self, attr, None)) for attr in self.__attrs__)
+        state['redirect_cache'] = dict(self.redirect_cache)
+        return state
+
+    def __setstate__(self, state):
+        redirect_cache = state.pop('redirect_cache', {})
+        for attr, value in state.items():
+            setattr(self, attr, value)
+
+        self.redirect_cache = RecentlyUsedContainer(REDIRECT_CACHE_SIZE)
+        for redirect, to in redirect_cache.items():
+            self.redirect_cache[redirect] = to
+
+
+def session():
+    """
+    Returns a :class:`Session` for context-management.
+
+    :rtype: Session
+    """
+
+    return Session()
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py
new file mode 100644
index 0000000..db2986b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py
@@ -0,0 +1,91 @@
+# -*- coding: utf-8 -*-
+
+from .structures import LookupDict
+
+_codes = {
+
+    # Informational.
+    100: ('continue',),
+    101: ('switching_protocols',),
+    102: ('processing',),
+    103: ('checkpoint',),
+    122: ('uri_too_long', 'request_uri_too_long'),
+    200: ('ok', 'okay', 'all_ok', 'all_okay', 'all_good', '\\o/', '✓'),
+    201: ('created',),
+    202: ('accepted',),
+    203: ('non_authoritative_info', 'non_authoritative_information'),
+    204: ('no_content',),
+    205: ('reset_content', 'reset'),
+    206: ('partial_content', 'partial'),
+    207: ('multi_status', 'multiple_status', 'multi_stati', 'multiple_stati'),
+    208: ('already_reported',),
+    226: ('im_used',),
+
+    # Redirection.
+    300: ('multiple_choices',),
+    301: ('moved_permanently', 'moved', '\\o-'),
+    302: ('found',),
+    303: ('see_other', 'other'),
+    304: ('not_modified',),
+    305: ('use_proxy',),
+    306: ('switch_proxy',),
+    307: ('temporary_redirect', 'temporary_moved', 'temporary'),
+    308: ('permanent_redirect',
+          'resume_incomplete', 'resume',),  # These 2 to be removed in 3.0
+
+    # Client Error.
+    400: ('bad_request', 'bad'),
+    401: ('unauthorized',),
+    402: ('payment_required', 'payment'),
+    403: ('forbidden',),
+    404: ('not_found', '-o-'),
+    405: ('method_not_allowed', 'not_allowed'),
+    406: ('not_acceptable',),
+    407: ('proxy_authentication_required', 'proxy_auth', 'proxy_authentication'),
+    408: ('request_timeout', 'timeout'),
+    409: ('conflict',),
+    410: ('gone',),
+    411: ('length_required',),
+    412: ('precondition_failed', 'precondition'),
+    413: ('request_entity_too_large',),
+    414: ('request_uri_too_large',),
+    415: ('unsupported_media_type', 'unsupported_media', 'media_type'),
+    416: ('requested_range_not_satisfiable', 'requested_range', 'range_not_satisfiable'),
+    417: ('expectation_failed',),
+    418: ('im_a_teapot', 'teapot', 'i_am_a_teapot'),
+    421: ('misdirected_request',),
+    422: ('unprocessable_entity', 'unprocessable'),
+    423: ('locked',),
+    424: ('failed_dependency', 'dependency'),
+    425: ('unordered_collection', 'unordered'),
+    426: ('upgrade_required', 'upgrade'),
+    428: ('precondition_required', 'precondition'),
+    429: ('too_many_requests', 'too_many'),
+    431: ('header_fields_too_large', 'fields_too_large'),
+    444: ('no_response', 'none'),
+    449: ('retry_with', 'retry'),
+    450: ('blocked_by_windows_parental_controls', 'parental_controls'),
+    451: ('unavailable_for_legal_reasons', 'legal_reasons'),
+    499: ('client_closed_request',),
+
+    # Server Error.
+    500: ('internal_server_error', 'server_error', '/o\\', '✗'),
+    501: ('not_implemented',),
+    502: ('bad_gateway',),
+    503: ('service_unavailable', 'unavailable'),
+    504: ('gateway_timeout',),
+    505: ('http_version_not_supported', 'http_version'),
+    506: ('variant_also_negotiates',),
+    507: ('insufficient_storage',),
+    509: ('bandwidth_limit_exceeded', 'bandwidth'),
+    510: ('not_extended',),
+    511: ('network_authentication_required', 'network_auth', 'network_authentication'),
+}
+
+codes = LookupDict(name='status_codes')
+
+for code, titles in _codes.items():
+    for title in titles:
+        setattr(codes, title, code)
+        if not title.startswith('\\'):
+            setattr(codes, title.upper(), code)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/structures.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/structures.py
new file mode 100644
index 0000000..05d2b3f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/structures.py
@@ -0,0 +1,105 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.structures
+~~~~~~~~~~~~~~~~~~~
+
+Data structures that power Requests.
+"""
+
+import collections
+
+from .compat import OrderedDict
+
+
+class CaseInsensitiveDict(collections.MutableMapping):
+    """A case-insensitive ``dict``-like object.
+
+    Implements all methods and operations of
+    ``collections.MutableMapping`` as well as dict's ``copy``. Also
+    provides ``lower_items``.
+
+    All keys are expected to be strings. The structure remembers the
+    case of the last key to be set, and ``iter(instance)``,
+    ``keys()``, ``items()``, ``iterkeys()``, and ``iteritems()``
+    will contain case-sensitive keys. However, querying and contains
+    testing is case insensitive::
+
+        cid = CaseInsensitiveDict()
+        cid['Accept'] = 'application/json'
+        cid['aCCEPT'] == 'application/json'  # True
+        list(cid) == ['Accept']  # True
+
+    For example, ``headers['content-encoding']`` will return the
+    value of a ``'Content-Encoding'`` response header, regardless
+    of how the header name was originally stored.
+
+    If the constructor, ``.update``, or equality comparison
+    operations are given keys that have equal ``.lower()``s, the
+    behavior is undefined.
+    """
+
+    def __init__(self, data=None, **kwargs):
+        self._store = OrderedDict()
+        if data is None:
+            data = {}
+        self.update(data, **kwargs)
+
+    def __setitem__(self, key, value):
+        # Use the lowercased key for lookups, but store the actual
+        # key alongside the value.
+        self._store[key.lower()] = (key, value)
+
+    def __getitem__(self, key):
+        return self._store[key.lower()][1]
+
+    def __delitem__(self, key):
+        del self._store[key.lower()]
+
+    def __iter__(self):
+        return (casedkey for casedkey, mappedvalue in self._store.values())
+
+    def __len__(self):
+        return len(self._store)
+
+    def lower_items(self):
+        """Like iteritems(), but with all lowercase keys."""
+        return (
+            (lowerkey, keyval[1])
+            for (lowerkey, keyval)
+            in self._store.items()
+        )
+
+    def __eq__(self, other):
+        if isinstance(other, collections.Mapping):
+            other = CaseInsensitiveDict(other)
+        else:
+            return NotImplemented
+        # Compare insensitively
+        return dict(self.lower_items()) == dict(other.lower_items())
+
+    # Copy is required
+    def copy(self):
+        return CaseInsensitiveDict(self._store.values())
+
+    def __repr__(self):
+        return str(dict(self.items()))
+
+
+class LookupDict(dict):
+    """Dictionary lookup object."""
+
+    def __init__(self, name=None):
+        self.name = name
+        super(LookupDict, self).__init__()
+
+    def __repr__(self):
+        return '<lookup \'%s\'>' % (self.name)
+
+    def __getitem__(self, key):
+        # We allow fall-through here, so values default to None
+
+        return self.__dict__.get(key, None)
+
+    def get(self, key, default=None):
+        return self.__dict__.get(key, default)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/requests/utils.py b/venv/lib/python3.5/site-packages/pip/_vendor/requests/utils.py
new file mode 100644
index 0000000..30a03ca
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/requests/utils.py
@@ -0,0 +1,817 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.utils
+~~~~~~~~~~~~~~
+
+This module provides utility functions that are used within Requests
+that are also useful for external consumption.
+"""
+
+import cgi
+import codecs
+import collections
+import io
+import os
+import re
+import socket
+import struct
+import warnings
+
+from . import __version__
+from . import certs
+from .compat import parse_http_list as _parse_list_header
+from .compat import (quote, urlparse, bytes, str, OrderedDict, unquote, is_py2,
+                     builtin_str, getproxies, proxy_bypass, urlunparse,
+                     basestring)
+from .cookies import RequestsCookieJar, cookiejar_from_dict
+from .structures import CaseInsensitiveDict
+from .exceptions import InvalidURL, InvalidHeader, FileModeWarning
+
+_hush_pyflakes = (RequestsCookieJar,)
+
+NETRC_FILES = ('.netrc', '_netrc')
+
+DEFAULT_CA_BUNDLE_PATH = certs.where()
+
+
+def dict_to_sequence(d):
+    """Returns an internal sequence dictionary update."""
+
+    if hasattr(d, 'items'):
+        d = d.items()
+
+    return d
+
+
+def super_len(o):
+    total_length = 0
+    current_position = 0
+
+    if hasattr(o, '__len__'):
+        total_length = len(o)
+
+    elif hasattr(o, 'len'):
+        total_length = o.len
+
+    elif hasattr(o, 'getvalue'):
+        # e.g. BytesIO, cStringIO.StringIO
+        total_length = len(o.getvalue())
+
+    elif hasattr(o, 'fileno'):
+        try:
+            fileno = o.fileno()
+        except io.UnsupportedOperation:
+            pass
+        else:
+            total_length = os.fstat(fileno).st_size
+
+            # Having used fstat to determine the file length, we need to
+            # confirm that this file was opened up in binary mode.
+            if 'b' not in o.mode:
+                warnings.warn((
+                    "Requests has determined the content-length for this "
+                    "request using the binary size of the file: however, the "
+                    "file has been opened in text mode (i.e. without the 'b' "
+                    "flag in the mode). This may lead to an incorrect "
+                    "content-length. In Requests 3.0, support will be removed "
+                    "for files in text mode."),
+                    FileModeWarning
+                )
+
+    if hasattr(o, 'tell'):
+        try:
+            current_position = o.tell()
+        except (OSError, IOError):
+            # This can happen in some weird situations, such as when the file
+            # is actually a special file descriptor like stdin. In this
+            # instance, we don't know what the length is, so set it to zero and
+            # let requests chunk it instead.
+            current_position = total_length
+
+    return max(0, total_length - current_position)
+
+
+def get_netrc_auth(url, raise_errors=False):
+    """Returns the Requests tuple auth for a given url from netrc."""
+
+    try:
+        from netrc import netrc, NetrcParseError
+
+        netrc_path = None
+
+        for f in NETRC_FILES:
+            try:
+                loc = os.path.expanduser('~/{0}'.format(f))
+            except KeyError:
+                # os.path.expanduser can fail when $HOME is undefined and
+                # getpwuid fails. See http://bugs.python.org/issue20164 &
+                # https://github.com/kennethreitz/requests/issues/1846
+                return
+
+            if os.path.exists(loc):
+                netrc_path = loc
+                break
+
+        # Abort early if there isn't one.
+        if netrc_path is None:
+            return
+
+        ri = urlparse(url)
+
+        # Strip port numbers from netloc. This weird `if...encode`` dance is
+        # used for Python 3.2, which doesn't support unicode literals.
+        splitstr = b':'
+        if isinstance(url, str):
+            splitstr = splitstr.decode('ascii')
+        host = ri.netloc.split(splitstr)[0]
+
+        try:
+            _netrc = netrc(netrc_path).authenticators(host)
+            if _netrc:
+                # Return with login / password
+                login_i = (0 if _netrc[0] else 1)
+                return (_netrc[login_i], _netrc[2])
+        except (NetrcParseError, IOError):
+            # If there was a parsing error or a permissions issue reading the file,
+            # we'll just skip netrc auth unless explicitly asked to raise errors.
+            if raise_errors:
+                raise
+
+    # AppEngine hackiness.
+    except (ImportError, AttributeError):
+        pass
+
+
+def guess_filename(obj):
+    """Tries to guess the filename of the given object."""
+    name = getattr(obj, 'name', None)
+    if (name and isinstance(name, basestring) and name[0] != '<' and
+            name[-1] != '>'):
+        return os.path.basename(name)
+
+
+def from_key_val_list(value):
+    """Take an object and test to see if it can be represented as a
+    dictionary. Unless it can not be represented as such, return an
+    OrderedDict, e.g.,
+
+    ::
+
+        >>> from_key_val_list([('key', 'val')])
+        OrderedDict([('key', 'val')])
+        >>> from_key_val_list('string')
+        ValueError: need more than 1 value to unpack
+        >>> from_key_val_list({'key': 'val'})
+        OrderedDict([('key', 'val')])
+
+    :rtype: OrderedDict
+    """
+    if value is None:
+        return None
+
+    if isinstance(value, (str, bytes, bool, int)):
+        raise ValueError('cannot encode objects that are not 2-tuples')
+
+    return OrderedDict(value)
+
+
+def to_key_val_list(value):
+    """Take an object and test to see if it can be represented as a
+    dictionary. If it can be, return a list of tuples, e.g.,
+
+    ::
+
+        >>> to_key_val_list([('key', 'val')])
+        [('key', 'val')]
+        >>> to_key_val_list({'key': 'val'})
+        [('key', 'val')]
+        >>> to_key_val_list('string')
+        ValueError: cannot encode objects that are not 2-tuples.
+
+    :rtype: list
+    """
+    if value is None:
+        return None
+
+    if isinstance(value, (str, bytes, bool, int)):
+        raise ValueError('cannot encode objects that are not 2-tuples')
+
+    if isinstance(value, collections.Mapping):
+        value = value.items()
+
+    return list(value)
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def parse_list_header(value):
+    """Parse lists as described by RFC 2068 Section 2.
+
+    In particular, parse comma-separated lists where the elements of
+    the list may include quoted-strings.  A quoted-string could
+    contain a comma.  A non-quoted string could have quotes in the
+    middle.  Quotes are removed automatically after parsing.
+
+    It basically works like :func:`parse_set_header` just that items
+    may appear multiple times and case sensitivity is preserved.
+
+    The return value is a standard :class:`list`:
+
+    >>> parse_list_header('token, "quoted value"')
+    ['token', 'quoted value']
+
+    To create a header from the :class:`list` again, use the
+    :func:`dump_header` function.
+
+    :param value: a string with a list header.
+    :return: :class:`list`
+    :rtype: list
+    """
+    result = []
+    for item in _parse_list_header(value):
+        if item[:1] == item[-1:] == '"':
+            item = unquote_header_value(item[1:-1])
+        result.append(item)
+    return result
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def parse_dict_header(value):
+    """Parse lists of key, value pairs as described by RFC 2068 Section 2 and
+    convert them into a python dict:
+
+    >>> d = parse_dict_header('foo="is a fish", bar="as well"')
+    >>> type(d) is dict
+    True
+    >>> sorted(d.items())
+    [('bar', 'as well'), ('foo', 'is a fish')]
+
+    If there is no value for a key it will be `None`:
+
+    >>> parse_dict_header('key_without_value')
+    {'key_without_value': None}
+
+    To create a header from the :class:`dict` again, use the
+    :func:`dump_header` function.
+
+    :param value: a string with a dict header.
+    :return: :class:`dict`
+    :rtype: dict
+    """
+    result = {}
+    for item in _parse_list_header(value):
+        if '=' not in item:
+            result[item] = None
+            continue
+        name, value = item.split('=', 1)
+        if value[:1] == value[-1:] == '"':
+            value = unquote_header_value(value[1:-1])
+        result[name] = value
+    return result
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def unquote_header_value(value, is_filename=False):
+    r"""Unquotes a header value.  (Reversal of :func:`quote_header_value`).
+    This does not use the real unquoting but what browsers are actually
+    using for quoting.
+
+    :param value: the header value to unquote.
+    :rtype: str
+    """
+    if value and value[0] == value[-1] == '"':
+        # this is not the real unquoting, but fixing this so that the
+        # RFC is met will result in bugs with internet explorer and
+        # probably some other browsers as well.  IE for example is
+        # uploading files with "C:\foo\bar.txt" as filename
+        value = value[1:-1]
+
+        # if this is a filename and the starting characters look like
+        # a UNC path, then just return the value without quotes.  Using the
+        # replace sequence below on a UNC path has the effect of turning
+        # the leading double slash into a single slash and then
+        # _fix_ie_filename() doesn't work correctly.  See #458.
+        if not is_filename or value[:2] != '\\\\':
+            return value.replace('\\\\', '\\').replace('\\"', '"')
+    return value
+
+
+def dict_from_cookiejar(cj):
+    """Returns a key/value dictionary from a CookieJar.
+
+    :param cj: CookieJar object to extract cookies from.
+    :rtype: dict
+    """
+
+    cookie_dict = {}
+
+    for cookie in cj:
+        cookie_dict[cookie.name] = cookie.value
+
+    return cookie_dict
+
+
+def add_dict_to_cookiejar(cj, cookie_dict):
+    """Returns a CookieJar from a key/value dictionary.
+
+    :param cj: CookieJar to insert cookies into.
+    :param cookie_dict: Dict of key/values to insert into CookieJar.
+    :rtype: CookieJar
+    """
+
+    cj2 = cookiejar_from_dict(cookie_dict)
+    cj.update(cj2)
+    return cj
+
+
+def get_encodings_from_content(content):
+    """Returns encodings from given content string.
+
+    :param content: bytestring to extract encodings from.
+    """
+    warnings.warn((
+        'In requests 3.0, get_encodings_from_content will be removed. For '
+        'more information, please see the discussion on issue #2266. (This'
+        ' warning should only appear once.)'),
+        DeprecationWarning)
+
+    charset_re = re.compile(r'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I)
+    pragma_re = re.compile(r'<meta.*?content=["\']*;?charset=(.+?)["\'>]', flags=re.I)
+    xml_re = re.compile(r'^<\?xml.*?encoding=["\']*(.+?)["\'>]')
+
+    return (charset_re.findall(content) +
+            pragma_re.findall(content) +
+            xml_re.findall(content))
+
+
+def get_encoding_from_headers(headers):
+    """Returns encodings from given HTTP Header Dict.
+
+    :param headers: dictionary to extract encoding from.
+    :rtype: str
+    """
+
+    content_type = headers.get('content-type')
+
+    if not content_type:
+        return None
+
+    content_type, params = cgi.parse_header(content_type)
+
+    if 'charset' in params:
+        return params['charset'].strip("'\"")
+
+    if 'text' in content_type:
+        return 'ISO-8859-1'
+
+
+def stream_decode_response_unicode(iterator, r):
+    """Stream decodes a iterator."""
+
+    if r.encoding is None:
+        for item in iterator:
+            yield item
+        return
+
+    decoder = codecs.getincrementaldecoder(r.encoding)(errors='replace')
+    for chunk in iterator:
+        rv = decoder.decode(chunk)
+        if rv:
+            yield rv
+    rv = decoder.decode(b'', final=True)
+    if rv:
+        yield rv
+
+
+def iter_slices(string, slice_length):
+    """Iterate over slices of a string."""
+    pos = 0
+    if slice_length is None or slice_length <= 0:
+        slice_length = len(string)
+    while pos < len(string):
+        yield string[pos:pos + slice_length]
+        pos += slice_length
+
+
+def get_unicode_from_response(r):
+    """Returns the requested content back in unicode.
+
+    :param r: Response object to get unicode content from.
+
+    Tried:
+
+    1. charset from content-type
+    2. fall back and replace all unicode characters
+
+    :rtype: str
+    """
+    warnings.warn((
+        'In requests 3.0, get_unicode_from_response will be removed. For '
+        'more information, please see the discussion on issue #2266. (This'
+        ' warning should only appear once.)'),
+        DeprecationWarning)
+
+    tried_encodings = []
+
+    # Try charset from content-type
+    encoding = get_encoding_from_headers(r.headers)
+
+    if encoding:
+        try:
+            return str(r.content, encoding)
+        except UnicodeError:
+            tried_encodings.append(encoding)
+
+    # Fall back:
+    try:
+        return str(r.content, encoding, errors='replace')
+    except TypeError:
+        return r.content
+
+
+# The unreserved URI characters (RFC 3986)
+UNRESERVED_SET = frozenset(
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+    + "0123456789-._~")
+
+
+def unquote_unreserved(uri):
+    """Un-escape any percent-escape sequences in a URI that are unreserved
+    characters. This leaves all reserved, illegal and non-ASCII bytes encoded.
+
+    :rtype: str
+    """
+    parts = uri.split('%')
+    for i in range(1, len(parts)):
+        h = parts[i][0:2]
+        if len(h) == 2 and h.isalnum():
+            try:
+                c = chr(int(h, 16))
+            except ValueError:
+                raise InvalidURL("Invalid percent-escape sequence: '%s'" % h)
+
+            if c in UNRESERVED_SET:
+                parts[i] = c + parts[i][2:]
+            else:
+                parts[i] = '%' + parts[i]
+        else:
+            parts[i] = '%' + parts[i]
+    return ''.join(parts)
+
+
+def requote_uri(uri):
+    """Re-quote the given URI.
+
+    This function passes the given URI through an unquote/quote cycle to
+    ensure that it is fully and consistently quoted.
+
+    :rtype: str
+    """
+    safe_with_percent = "!#$%&'()*+,/:;=?@[]~"
+    safe_without_percent = "!#$&'()*+,/:;=?@[]~"
+    try:
+        # Unquote only the unreserved characters
+        # Then quote only illegal characters (do not quote reserved,
+        # unreserved, or '%')
+        return quote(unquote_unreserved(uri), safe=safe_with_percent)
+    except InvalidURL:
+        # We couldn't unquote the given URI, so let's try quoting it, but
+        # there may be unquoted '%'s in the URI. We need to make sure they're
+        # properly quoted so they do not cause issues elsewhere.
+        return quote(uri, safe=safe_without_percent)
+
+
+def address_in_network(ip, net):
+    """This function allows you to check if on IP belongs to a network subnet
+
+    Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24
+             returns False if ip = 192.168.1.1 and net = 192.168.100.0/24
+
+    :rtype: bool
+    """
+    ipaddr = struct.unpack('=L', socket.inet_aton(ip))[0]
+    netaddr, bits = net.split('/')
+    netmask = struct.unpack('=L', socket.inet_aton(dotted_netmask(int(bits))))[0]
+    network = struct.unpack('=L', socket.inet_aton(netaddr))[0] & netmask
+    return (ipaddr & netmask) == (network & netmask)
+
+
+def dotted_netmask(mask):
+    """Converts mask from /xx format to xxx.xxx.xxx.xxx
+
+    Example: if mask is 24 function returns 255.255.255.0
+
+    :rtype: str
+    """
+    bits = 0xffffffff ^ (1 << 32 - mask) - 1
+    return socket.inet_ntoa(struct.pack('>I', bits))
+
+
+def is_ipv4_address(string_ip):
+    """
+    :rtype: bool
+    """
+    try:
+        socket.inet_aton(string_ip)
+    except socket.error:
+        return False
+    return True
+
+
+def is_valid_cidr(string_network):
+    """
+    Very simple check of the cidr format in no_proxy variable.
+
+    :rtype: bool
+    """
+    if string_network.count('/') == 1:
+        try:
+            mask = int(string_network.split('/')[1])
+        except ValueError:
+            return False
+
+        if mask < 1 or mask > 32:
+            return False
+
+        try:
+            socket.inet_aton(string_network.split('/')[0])
+        except socket.error:
+            return False
+    else:
+        return False
+    return True
+
+
+def should_bypass_proxies(url):
+    """
+    Returns whether we should bypass proxies or not.
+
+    :rtype: bool
+    """
+    get_proxy = lambda k: os.environ.get(k) or os.environ.get(k.upper())
+
+    # First check whether no_proxy is defined. If it is, check that the URL
+    # we're getting isn't in the no_proxy list.
+    no_proxy = get_proxy('no_proxy')
+    netloc = urlparse(url).netloc
+
+    if no_proxy:
+        # We need to check whether we match here. We need to see if we match
+        # the end of the netloc, both with and without the port.
+        no_proxy = (
+            host for host in no_proxy.replace(' ', '').split(',') if host
+        )
+
+        ip = netloc.split(':')[0]
+        if is_ipv4_address(ip):
+            for proxy_ip in no_proxy:
+                if is_valid_cidr(proxy_ip):
+                    if address_in_network(ip, proxy_ip):
+                        return True
+                elif ip == proxy_ip:
+                    # If no_proxy ip was defined in plain IP notation instead of cidr notation &
+                    # matches the IP of the index
+                    return True
+        else:
+            for host in no_proxy:
+                if netloc.endswith(host) or netloc.split(':')[0].endswith(host):
+                    # The URL does match something in no_proxy, so we don't want
+                    # to apply the proxies on this URL.
+                    return True
+
+    # If the system proxy settings indicate that this URL should be bypassed,
+    # don't proxy.
+    # The proxy_bypass function is incredibly buggy on macOS in early versions
+    # of Python 2.6, so allow this call to fail. Only catch the specific
+    # exceptions we've seen, though: this call failing in other ways can reveal
+    # legitimate problems.
+    try:
+        bypass = proxy_bypass(netloc)
+    except (TypeError, socket.gaierror):
+        bypass = False
+
+    if bypass:
+        return True
+
+    return False
+
+
+def get_environ_proxies(url):
+    """
+    Return a dict of environment proxies.
+
+    :rtype: dict
+    """
+    if should_bypass_proxies(url):
+        return {}
+    else:
+        return getproxies()
+
+
+def select_proxy(url, proxies):
+    """Select a proxy for the url, if applicable.
+
+    :param url: The url being for the request
+    :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs
+    """
+    proxies = proxies or {}
+    urlparts = urlparse(url)
+    if urlparts.hostname is None:
+        return proxies.get('all', proxies.get(urlparts.scheme))
+
+    proxy_keys = [
+        'all://' + urlparts.hostname,
+        'all',
+        urlparts.scheme + '://' + urlparts.hostname,
+        urlparts.scheme,
+    ]
+    proxy = None
+    for proxy_key in proxy_keys:
+        if proxy_key in proxies:
+            proxy = proxies[proxy_key]
+            break
+
+    return proxy
+
+
+def default_user_agent(name="python-requests"):
+    """
+    Return a string representing the default user agent.
+
+    :rtype: str
+    """
+    return '%s/%s' % (name, __version__)
+
+
+def default_headers():
+    """
+    :rtype: requests.structures.CaseInsensitiveDict
+    """
+    return CaseInsensitiveDict({
+        'User-Agent': default_user_agent(),
+        'Accept-Encoding': ', '.join(('gzip', 'deflate')),
+        'Accept': '*/*',
+        'Connection': 'keep-alive',
+    })
+
+
+def parse_header_links(value):
+    """Return a dict of parsed link headers proxies.
+
+    i.e. Link: <http:/.../front.jpeg>; rel=front; type="image/jpeg",<http://.../back.jpeg>; rel=back;type="image/jpeg"
+
+    :rtype: list
+    """
+
+    links = []
+
+    replace_chars = ' \'"'
+
+    for val in re.split(', *<', value):
+        try:
+            url, params = val.split(';', 1)
+        except ValueError:
+            url, params = val, ''
+
+        link = {'url': url.strip('<> \'"')}
+
+        for param in params.split(';'):
+            try:
+                key, value = param.split('=')
+            except ValueError:
+                break
+
+            link[key.strip(replace_chars)] = value.strip(replace_chars)
+
+        links.append(link)
+
+    return links
+
+
+# Null bytes; no need to recreate these on each call to guess_json_utf
+_null = '\x00'.encode('ascii')  # encoding to ASCII for Python 3
+_null2 = _null * 2
+_null3 = _null * 3
+
+
+def guess_json_utf(data):
+    """
+    :rtype: str
+    """
+    # JSON always starts with two ASCII characters, so detection is as
+    # easy as counting the nulls and from their location and count
+    # determine the encoding. Also detect a BOM, if present.
+    sample = data[:4]
+    if sample in (codecs.BOM_UTF32_LE, codecs.BOM32_BE):
+        return 'utf-32'     # BOM included
+    if sample[:3] == codecs.BOM_UTF8:
+        return 'utf-8-sig'  # BOM included, MS style (discouraged)
+    if sample[:2] in (codecs.BOM_UTF16_LE, codecs.BOM_UTF16_BE):
+        return 'utf-16'     # BOM included
+    nullcount = sample.count(_null)
+    if nullcount == 0:
+        return 'utf-8'
+    if nullcount == 2:
+        if sample[::2] == _null2:   # 1st and 3rd are null
+            return 'utf-16-be'
+        if sample[1::2] == _null2:  # 2nd and 4th are null
+            return 'utf-16-le'
+        # Did not detect 2 valid UTF-16 ascii-range characters
+    if nullcount == 3:
+        if sample[:3] == _null3:
+            return 'utf-32-be'
+        if sample[1:] == _null3:
+            return 'utf-32-le'
+        # Did not detect a valid UTF-32 ascii-range character
+    return None
+
+
+def prepend_scheme_if_needed(url, new_scheme):
+    """Given a URL that may or may not have a scheme, prepend the given scheme.
+    Does not replace a present scheme with the one provided as an argument.
+
+    :rtype: str
+    """
+    scheme, netloc, path, params, query, fragment = urlparse(url, new_scheme)
+
+    # urlparse is a finicky beast, and sometimes decides that there isn't a
+    # netloc present. Assume that it's being over-cautious, and switch netloc
+    # and path if urlparse decided there was no netloc.
+    if not netloc:
+        netloc, path = path, netloc
+
+    return urlunparse((scheme, netloc, path, params, query, fragment))
+
+
+def get_auth_from_url(url):
+    """Given a url with authentication components, extract them into a tuple of
+    username,password.
+
+    :rtype: (str,str)
+    """
+    parsed = urlparse(url)
+
+    try:
+        auth = (unquote(parsed.username), unquote(parsed.password))
+    except (AttributeError, TypeError):
+        auth = ('', '')
+
+    return auth
+
+
+def to_native_string(string, encoding='ascii'):
+    """Given a string object, regardless of type, returns a representation of
+    that string in the native string type, encoding and decoding where
+    necessary. This assumes ASCII unless told otherwise.
+    """
+    if isinstance(string, builtin_str):
+        out = string
+    else:
+        if is_py2:
+            out = string.encode(encoding)
+        else:
+            out = string.decode(encoding)
+
+    return out
+
+
+# Moved outside of function to avoid recompile every call
+_CLEAN_HEADER_REGEX_BYTE = re.compile(b'^\\S[^\\r\\n]*$|^$')
+_CLEAN_HEADER_REGEX_STR = re.compile(r'^\S[^\r\n]*$|^$')
+
+def check_header_validity(header):
+    """Verifies that header value is a string which doesn't contain
+    leading whitespace or return characters. This prevents unintended
+    header injection.
+
+    :param header: tuple, in the format (name, value).
+    """
+    name, value = header
+
+    if isinstance(value, bytes):
+        pat = _CLEAN_HEADER_REGEX_BYTE
+    else:
+        pat = _CLEAN_HEADER_REGEX_STR
+    try:
+        if not pat.match(value):
+            raise InvalidHeader("Invalid return character or leading space in header: %s" % name)
+    except TypeError:
+        raise InvalidHeader("Header value %s must be of type str or bytes, "
+                            "not %s" % (value, type(value)))
+
+
+def urldefragauth(url):
+    """
+    Given a url remove the fragment and the authentication part.
+
+    :rtype: str
+    """
+    scheme, netloc, path, params, query, fragment = urlparse(url)
+
+    # see func:`prepend_scheme_if_needed`
+    if not netloc:
+        netloc, path = path, netloc
+
+    netloc = netloc.rsplit('@', 1)[-1]
+
+    return urlunparse((scheme, netloc, path, params, query, ''))
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/retrying.py b/venv/lib/python3.5/site-packages/pip/_vendor/retrying.py
new file mode 100644
index 0000000..6d1e627
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/retrying.py
@@ -0,0 +1,267 @@
+## Copyright 2013-2014 Ray Holder
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+
+import random
+from pip._vendor import six
+import sys
+import time
+import traceback
+
+
+# sys.maxint / 2, since Python 3.2 doesn't have a sys.maxint...
+MAX_WAIT = 1073741823
+
+
+def retry(*dargs, **dkw):
+    """
+    Decorator function that instantiates the Retrying object
+    @param *dargs: positional arguments passed to Retrying object
+    @param **dkw: keyword arguments passed to the Retrying object
+    """
+    # support both @retry and @retry() as valid syntax
+    if len(dargs) == 1 and callable(dargs[0]):
+        def wrap_simple(f):
+
+            @six.wraps(f)
+            def wrapped_f(*args, **kw):
+                return Retrying().call(f, *args, **kw)
+
+            return wrapped_f
+
+        return wrap_simple(dargs[0])
+
+    else:
+        def wrap(f):
+
+            @six.wraps(f)
+            def wrapped_f(*args, **kw):
+                return Retrying(*dargs, **dkw).call(f, *args, **kw)
+
+            return wrapped_f
+
+        return wrap
+
+
+class Retrying(object):
+
+    def __init__(self,
+                 stop=None, wait=None,
+                 stop_max_attempt_number=None,
+                 stop_max_delay=None,
+                 wait_fixed=None,
+                 wait_random_min=None, wait_random_max=None,
+                 wait_incrementing_start=None, wait_incrementing_increment=None,
+                 wait_exponential_multiplier=None, wait_exponential_max=None,
+                 retry_on_exception=None,
+                 retry_on_result=None,
+                 wrap_exception=False,
+                 stop_func=None,
+                 wait_func=None,
+                 wait_jitter_max=None):
+
+        self._stop_max_attempt_number = 5 if stop_max_attempt_number is None else stop_max_attempt_number
+        self._stop_max_delay = 100 if stop_max_delay is None else stop_max_delay
+        self._wait_fixed = 1000 if wait_fixed is None else wait_fixed
+        self._wait_random_min = 0 if wait_random_min is None else wait_random_min
+        self._wait_random_max = 1000 if wait_random_max is None else wait_random_max
+        self._wait_incrementing_start = 0 if wait_incrementing_start is None else wait_incrementing_start
+        self._wait_incrementing_increment = 100 if wait_incrementing_increment is None else wait_incrementing_increment
+        self._wait_exponential_multiplier = 1 if wait_exponential_multiplier is None else wait_exponential_multiplier
+        self._wait_exponential_max = MAX_WAIT if wait_exponential_max is None else wait_exponential_max
+        self._wait_jitter_max = 0 if wait_jitter_max is None else wait_jitter_max
+
+        # TODO add chaining of stop behaviors
+        # stop behavior
+        stop_funcs = []
+        if stop_max_attempt_number is not None:
+            stop_funcs.append(self.stop_after_attempt)
+
+        if stop_max_delay is not None:
+            stop_funcs.append(self.stop_after_delay)
+
+        if stop_func is not None:
+            self.stop = stop_func
+
+        elif stop is None:
+            self.stop = lambda attempts, delay: any(f(attempts, delay) for f in stop_funcs)
+
+        else:
+            self.stop = getattr(self, stop)
+
+        # TODO add chaining of wait behaviors
+        # wait behavior
+        wait_funcs = [lambda *args, **kwargs: 0]
+        if wait_fixed is not None:
+            wait_funcs.append(self.fixed_sleep)
+
+        if wait_random_min is not None or wait_random_max is not None:
+            wait_funcs.append(self.random_sleep)
+
+        if wait_incrementing_start is not None or wait_incrementing_increment is not None:
+            wait_funcs.append(self.incrementing_sleep)
+
+        if wait_exponential_multiplier is not None or wait_exponential_max is not None:
+            wait_funcs.append(self.exponential_sleep)
+
+        if wait_func is not None:
+            self.wait = wait_func
+
+        elif wait is None:
+            self.wait = lambda attempts, delay: max(f(attempts, delay) for f in wait_funcs)
+
+        else:
+            self.wait = getattr(self, wait)
+
+        # retry on exception filter
+        if retry_on_exception is None:
+            self._retry_on_exception = self.always_reject
+        else:
+            self._retry_on_exception = retry_on_exception
+
+        # TODO simplify retrying by Exception types
+        # retry on result filter
+        if retry_on_result is None:
+            self._retry_on_result = self.never_reject
+        else:
+            self._retry_on_result = retry_on_result
+
+        self._wrap_exception = wrap_exception
+
+    def stop_after_attempt(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Stop after the previous attempt >= stop_max_attempt_number."""
+        return previous_attempt_number >= self._stop_max_attempt_number
+
+    def stop_after_delay(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Stop after the time from the first attempt >= stop_max_delay."""
+        return delay_since_first_attempt_ms >= self._stop_max_delay
+
+    def no_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Don't sleep at all before retrying."""
+        return 0
+
+    def fixed_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Sleep a fixed amount of time between each retry."""
+        return self._wait_fixed
+
+    def random_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Sleep a random amount of time between wait_random_min and wait_random_max"""
+        return random.randint(self._wait_random_min, self._wait_random_max)
+
+    def incrementing_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """
+        Sleep an incremental amount of time after each attempt, starting at
+        wait_incrementing_start and incrementing by wait_incrementing_increment
+        """
+        result = self._wait_incrementing_start + (self._wait_incrementing_increment * (previous_attempt_number - 1))
+        if result < 0:
+            result = 0
+        return result
+
+    def exponential_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        exp = 2 ** previous_attempt_number
+        result = self._wait_exponential_multiplier * exp
+        if result > self._wait_exponential_max:
+            result = self._wait_exponential_max
+        if result < 0:
+            result = 0
+        return result
+
+    def never_reject(self, result):
+        return False
+
+    def always_reject(self, result):
+        return True
+
+    def should_reject(self, attempt):
+        reject = False
+        if attempt.has_exception:
+            reject |= self._retry_on_exception(attempt.value[1])
+        else:
+            reject |= self._retry_on_result(attempt.value)
+
+        return reject
+
+    def call(self, fn, *args, **kwargs):
+        start_time = int(round(time.time() * 1000))
+        attempt_number = 1
+        while True:
+            try:
+                attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
+            except:
+                tb = sys.exc_info()
+                attempt = Attempt(tb, attempt_number, True)
+
+            if not self.should_reject(attempt):
+                return attempt.get(self._wrap_exception)
+
+            delay_since_first_attempt_ms = int(round(time.time() * 1000)) - start_time
+            if self.stop(attempt_number, delay_since_first_attempt_ms):
+                if not self._wrap_exception and attempt.has_exception:
+                    # get() on an attempt with an exception should cause it to be raised, but raise just in case
+                    raise attempt.get()
+                else:
+                    raise RetryError(attempt)
+            else:
+                sleep = self.wait(attempt_number, delay_since_first_attempt_ms)
+                if self._wait_jitter_max:
+                    jitter = random.random() * self._wait_jitter_max
+                    sleep = sleep + max(0, jitter)
+                time.sleep(sleep / 1000.0)
+
+            attempt_number += 1
+
+
+class Attempt(object):
+    """
+    An Attempt encapsulates a call to a target function that may end as a
+    normal return value from the function or an Exception depending on what
+    occurred during the execution.
+    """
+
+    def __init__(self, value, attempt_number, has_exception):
+        self.value = value
+        self.attempt_number = attempt_number
+        self.has_exception = has_exception
+
+    def get(self, wrap_exception=False):
+        """
+        Return the return value of this Attempt instance or raise an Exception.
+        If wrap_exception is true, this Attempt is wrapped inside of a
+        RetryError before being raised.
+        """
+        if self.has_exception:
+            if wrap_exception:
+                raise RetryError(self)
+            else:
+                six.reraise(self.value[0], self.value[1], self.value[2])
+        else:
+            return self.value
+
+    def __repr__(self):
+        if self.has_exception:
+            return "Attempts: {0}, Error:\n{1}".format(self.attempt_number, "".join(traceback.format_tb(self.value[2])))
+        else:
+            return "Attempts: {0}, Value: {1}".format(self.attempt_number, self.value)
+
+
+class RetryError(Exception):
+    """
+    A RetryError encapsulates the last Attempt instance right before giving up.
+    """
+
+    def __init__(self, last_attempt):
+        self.last_attempt = last_attempt
+
+    def __str__(self):
+        return "RetryError[{0}]".format(self.last_attempt)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/six.py b/venv/lib/python3.5/site-packages/pip/_vendor/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py
new file mode 100644
index 0000000..03d5d35
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py
@@ -0,0 +1,342 @@
+# coding: utf8
+"""
+
+    webencodings
+    ~~~~~~~~~~~~
+
+    This is a Python implementation of the `WHATWG Encoding standard
+    <http://encoding.spec.whatwg.org/>`. See README for details.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+import codecs
+
+from .labels import LABELS
+
+
+VERSION = '0.5'
+
+
+# Some names in Encoding are not valid Python aliases. Remap these.
+PYTHON_NAMES = {
+    'iso-8859-8-i': 'iso-8859-8',
+    'x-mac-cyrillic': 'mac-cyrillic',
+    'macintosh': 'mac-roman',
+    'windows-874': 'cp874'}
+
+CACHE = {}
+
+
+def ascii_lower(string):
+    r"""Transform (only) ASCII letters to lower case: A-Z is mapped to a-z.
+
+    :param string: An Unicode string.
+    :returns: A new Unicode string.
+
+    This is used for `ASCII case-insensitive
+    <http://encoding.spec.whatwg.org/#ascii-case-insensitive>`_
+    matching of encoding labels.
+    The same matching is also used, among other things,
+    for `CSS keywords <http://dev.w3.org/csswg/css-values/#keywords>`_.
+
+    This is different from the :meth:`~py:str.lower` method of Unicode strings
+    which also affect non-ASCII characters,
+    sometimes mapping them into the ASCII range:
+
+        >>> keyword = u'Bac\N{KELVIN SIGN}ground'
+        >>> assert keyword.lower() == u'background'
+        >>> assert ascii_lower(keyword) != keyword.lower()
+        >>> assert ascii_lower(keyword) == u'bac\N{KELVIN SIGN}ground'
+
+    """
+    # This turns out to be faster than unicode.translate()
+    return string.encode('utf8').lower().decode('utf8')
+
+
+def lookup(label):
+    """
+    Look for an encoding by its label.
+    This is the spec’s `get an encoding
+    <http://encoding.spec.whatwg.org/#concept-encoding-get>`_ algorithm.
+    Supported labels are listed there.
+
+    :param label: A string.
+    :returns:
+        An :class:`Encoding` object, or :obj:`None` for an unknown label.
+
+    """
+    # Only strip ASCII whitespace: U+0009, U+000A, U+000C, U+000D, and U+0020.
+    label = ascii_lower(label.strip('\t\n\f\r '))
+    name = LABELS.get(label)
+    if name is None:
+        return None
+    encoding = CACHE.get(name)
+    if encoding is None:
+        if name == 'x-user-defined':
+            from .x_user_defined import codec_info
+        else:
+            python_name = PYTHON_NAMES.get(name, name)
+            # Any python_name value that gets to here should be valid.
+            codec_info = codecs.lookup(python_name)
+        encoding = Encoding(name, codec_info)
+        CACHE[name] = encoding
+    return encoding
+
+
+def _get_encoding(encoding_or_label):
+    """
+    Accept either an encoding object or label.
+
+    :param encoding: An :class:`Encoding` object or a label string.
+    :returns: An :class:`Encoding` object.
+    :raises: :exc:`~exceptions.LookupError` for an unknown label.
+
+    """
+    if hasattr(encoding_or_label, 'codec_info'):
+        return encoding_or_label
+
+    encoding = lookup(encoding_or_label)
+    if encoding is None:
+        raise LookupError('Unknown encoding label: %r' % encoding_or_label)
+    return encoding
+
+
+class Encoding(object):
+    """Reresents a character encoding such as UTF-8,
+    that can be used for decoding or encoding.
+
+    .. attribute:: name
+
+        Canonical name of the encoding
+
+    .. attribute:: codec_info
+
+        The actual implementation of the encoding,
+        a stdlib :class:`~codecs.CodecInfo` object.
+        See :func:`codecs.register`.
+
+    """
+    def __init__(self, name, codec_info):
+        self.name = name
+        self.codec_info = codec_info
+
+    def __repr__(self):
+        return '<Encoding %s>' % self.name
+
+
+#: The UTF-8 encoding. Should be used for new content and formats.
+UTF8 = lookup('utf-8')
+
+_UTF16LE = lookup('utf-16le')
+_UTF16BE = lookup('utf-16be')
+
+
+def decode(input, fallback_encoding, errors='replace'):
+    """
+    Decode a single string.
+
+    :param input: A byte string
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :return:
+        A ``(output, encoding)`` tuple of an Unicode string
+        and an :obj:`Encoding`.
+
+    """
+    # Fail early if `encoding` is an invalid label.
+    fallback_encoding = _get_encoding(fallback_encoding)
+    bom_encoding, input = _detect_bom(input)
+    encoding = bom_encoding or fallback_encoding
+    return encoding.codec_info.decode(input, errors)[0], encoding
+
+
+def _detect_bom(input):
+    """Return (bom_encoding, input), with any BOM removed from the input."""
+    if input.startswith(b'\xFF\xFE'):
+        return _UTF16LE, input[2:]
+    if input.startswith(b'\xFE\xFF'):
+        return _UTF16BE, input[2:]
+    if input.startswith(b'\xEF\xBB\xBF'):
+        return UTF8, input[3:]
+    return None, input
+
+
+def encode(input, encoding=UTF8, errors='strict'):
+    """
+    Encode a single string.
+
+    :param input: An Unicode string.
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :return: A byte string.
+
+    """
+    return _get_encoding(encoding).codec_info.encode(input, errors)[0]
+
+
+def iter_decode(input, fallback_encoding, errors='replace'):
+    """
+    "Pull"-based decoder.
+
+    :param input:
+        An iterable of byte strings.
+
+        The input is first consumed just enough to determine the encoding
+        based on the precense of a BOM,
+        then consumed on demand when the return value is.
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :returns:
+        An ``(output, encoding)`` tuple.
+        :obj:`output` is an iterable of Unicode strings,
+        :obj:`encoding` is the :obj:`Encoding` that is being used.
+
+    """
+
+    decoder = IncrementalDecoder(fallback_encoding, errors)
+    generator = _iter_decode_generator(input, decoder)
+    encoding = next(generator)
+    return generator, encoding
+
+
+def _iter_decode_generator(input, decoder):
+    """Return a generator that first yields the :obj:`Encoding`,
+    then yields output chukns as Unicode strings.
+
+    """
+    decode = decoder.decode
+    input = iter(input)
+    for chunck in input:
+        output = decode(chunck)
+        if output:
+            assert decoder.encoding is not None
+            yield decoder.encoding
+            yield output
+            break
+    else:
+        # Input exhausted without determining the encoding
+        output = decode(b'', final=True)
+        assert decoder.encoding is not None
+        yield decoder.encoding
+        if output:
+            yield output
+        return
+
+    for chunck in input:
+        output = decode(chunck)
+        if output:
+            yield output
+    output = decode(b'', final=True)
+    if output:
+        yield output
+
+
+def iter_encode(input, encoding=UTF8, errors='strict'):
+    """
+    “Pull”-based encoder.
+
+    :param input: An iterable of Unicode strings.
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :returns: An iterable of byte strings.
+
+    """
+    # Fail early if `encoding` is an invalid label.
+    encode = IncrementalEncoder(encoding, errors).encode
+    return _iter_encode_generator(input, encode)
+
+
+def _iter_encode_generator(input, encode):
+    for chunck in input:
+        output = encode(chunck)
+        if output:
+            yield output
+    output = encode('', final=True)
+    if output:
+        yield output
+
+
+class IncrementalDecoder(object):
+    """
+    “Push”-based decoder.
+
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+
+    """
+    def __init__(self, fallback_encoding, errors='replace'):
+        # Fail early if `encoding` is an invalid label.
+        self._fallback_encoding = _get_encoding(fallback_encoding)
+        self._errors = errors
+        self._buffer = b''
+        self._decoder = None
+        #: The actual :class:`Encoding` that is being used,
+        #: or :obj:`None` if that is not determined yet.
+        #: (Ie. if there is not enough input yet to determine
+        #: if there is a BOM.)
+        self.encoding = None  # Not known yet.
+
+    def decode(self, input, final=False):
+        """Decode one chunk of the input.
+
+        :param input: A byte string.
+        :param final:
+            Indicate that no more input is available.
+            Must be :obj:`True` if this is the last call.
+        :returns: An Unicode string.
+
+        """
+        decoder = self._decoder
+        if decoder is not None:
+            return decoder(input, final)
+
+        input = self._buffer + input
+        encoding, input = _detect_bom(input)
+        if encoding is None:
+            if len(input) < 3 and not final:  # Not enough data yet.
+                self._buffer = input
+                return ''
+            else:  # No BOM
+                encoding = self._fallback_encoding
+        decoder = encoding.codec_info.incrementaldecoder(self._errors).decode
+        self._decoder = decoder
+        self.encoding = encoding
+        return decoder(input, final)
+
+
+class IncrementalEncoder(object):
+    """
+    “Push”-based encoder.
+
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+
+    .. method:: encode(input, final=False)
+
+        :param input: An Unicode string.
+        :param final:
+            Indicate that no more input is available.
+            Must be :obj:`True` if this is the last call.
+        :returns: A byte string.
+
+    """
+    def __init__(self, encoding=UTF8, errors='strict'):
+        encoding = _get_encoding(encoding)
+        self.encode = encoding.codec_info.incrementalencoder(errors).encode
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diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py
new file mode 100644
index 0000000..29cbf91
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py
@@ -0,0 +1,231 @@
+"""
+
+    webencodings.labels
+    ~~~~~~~~~~~~~~~~~~~
+
+    Map encoding labels to their name.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+# XXX Do not edit!
+# This file is automatically generated by mklabels.py
+
+LABELS = {
+    'unicode-1-1-utf-8':   'utf-8',
+    'utf-8':               'utf-8',
+    'utf8':                'utf-8',
+    '866':                 'ibm866',
+    'cp866':               'ibm866',
+    'csibm866':            'ibm866',
+    'ibm866':              'ibm866',
+    'csisolatin2':         'iso-8859-2',
+    'iso-8859-2':          'iso-8859-2',
+    'iso-ir-101':          'iso-8859-2',
+    'iso8859-2':           'iso-8859-2',
+    'iso88592':            'iso-8859-2',
+    'iso_8859-2':          'iso-8859-2',
+    'iso_8859-2:1987':     'iso-8859-2',
+    'l2':                  'iso-8859-2',
+    'latin2':              'iso-8859-2',
+    'csisolatin3':         'iso-8859-3',
+    'iso-8859-3':          'iso-8859-3',
+    'iso-ir-109':          'iso-8859-3',
+    'iso8859-3':           'iso-8859-3',
+    'iso88593':            'iso-8859-3',
+    'iso_8859-3':          'iso-8859-3',
+    'iso_8859-3:1988':     'iso-8859-3',
+    'l3':                  'iso-8859-3',
+    'latin3':              'iso-8859-3',
+    'csisolatin4':         'iso-8859-4',
+    'iso-8859-4':          'iso-8859-4',
+    'iso-ir-110':          'iso-8859-4',
+    'iso8859-4':           'iso-8859-4',
+    'iso88594':            'iso-8859-4',
+    'iso_8859-4':          'iso-8859-4',
+    'iso_8859-4:1988':     'iso-8859-4',
+    'l4':                  'iso-8859-4',
+    'latin4':              'iso-8859-4',
+    'csisolatincyrillic':  'iso-8859-5',
+    'cyrillic':            'iso-8859-5',
+    'iso-8859-5':          'iso-8859-5',
+    'iso-ir-144':          'iso-8859-5',
+    'iso8859-5':           'iso-8859-5',
+    'iso88595':            'iso-8859-5',
+    'iso_8859-5':          'iso-8859-5',
+    'iso_8859-5:1988':     'iso-8859-5',
+    'arabic':              'iso-8859-6',
+    'asmo-708':            'iso-8859-6',
+    'csiso88596e':         'iso-8859-6',
+    'csiso88596i':         'iso-8859-6',
+    'csisolatinarabic':    'iso-8859-6',
+    'ecma-114':            'iso-8859-6',
+    'iso-8859-6':          'iso-8859-6',
+    'iso-8859-6-e':        'iso-8859-6',
+    'iso-8859-6-i':        'iso-8859-6',
+    'iso-ir-127':          'iso-8859-6',
+    'iso8859-6':           'iso-8859-6',
+    'iso88596':            'iso-8859-6',
+    'iso_8859-6':          'iso-8859-6',
+    'iso_8859-6:1987':     'iso-8859-6',
+    'csisolatingreek':     'iso-8859-7',
+    'ecma-118':            'iso-8859-7',
+    'elot_928':            'iso-8859-7',
+    'greek':               'iso-8859-7',
+    'greek8':              'iso-8859-7',
+    'iso-8859-7':          'iso-8859-7',
+    'iso-ir-126':          'iso-8859-7',
+    'iso8859-7':           'iso-8859-7',
+    'iso88597':            'iso-8859-7',
+    'iso_8859-7':          'iso-8859-7',
+    'iso_8859-7:1987':     'iso-8859-7',
+    'sun_eu_greek':        'iso-8859-7',
+    'csiso88598e':         'iso-8859-8',
+    'csisolatinhebrew':    'iso-8859-8',
+    'hebrew':              'iso-8859-8',
+    'iso-8859-8':          'iso-8859-8',
+    'iso-8859-8-e':        'iso-8859-8',
+    'iso-ir-138':          'iso-8859-8',
+    'iso8859-8':           'iso-8859-8',
+    'iso88598':            'iso-8859-8',
+    'iso_8859-8':          'iso-8859-8',
+    'iso_8859-8:1988':     'iso-8859-8',
+    'visual':              'iso-8859-8',
+    'csiso88598i':         'iso-8859-8-i',
+    'iso-8859-8-i':        'iso-8859-8-i',
+    'logical':             'iso-8859-8-i',
+    'csisolatin6':         'iso-8859-10',
+    'iso-8859-10':         'iso-8859-10',
+    'iso-ir-157':          'iso-8859-10',
+    'iso8859-10':          'iso-8859-10',
+    'iso885910':           'iso-8859-10',
+    'l6':                  'iso-8859-10',
+    'latin6':              'iso-8859-10',
+    'iso-8859-13':         'iso-8859-13',
+    'iso8859-13':          'iso-8859-13',
+    'iso885913':           'iso-8859-13',
+    'iso-8859-14':         'iso-8859-14',
+    'iso8859-14':          'iso-8859-14',
+    'iso885914':           'iso-8859-14',
+    'csisolatin9':         'iso-8859-15',
+    'iso-8859-15':         'iso-8859-15',
+    'iso8859-15':          'iso-8859-15',
+    'iso885915':           'iso-8859-15',
+    'iso_8859-15':         'iso-8859-15',
+    'l9':                  'iso-8859-15',
+    'iso-8859-16':         'iso-8859-16',
+    'cskoi8r':             'koi8-r',
+    'koi':                 'koi8-r',
+    'koi8':                'koi8-r',
+    'koi8-r':              'koi8-r',
+    'koi8_r':              'koi8-r',
+    'koi8-u':              'koi8-u',
+    'csmacintosh':         'macintosh',
+    'mac':                 'macintosh',
+    'macintosh':           'macintosh',
+    'x-mac-roman':         'macintosh',
+    'dos-874':             'windows-874',
+    'iso-8859-11':         'windows-874',
+    'iso8859-11':          'windows-874',
+    'iso885911':           'windows-874',
+    'tis-620':             'windows-874',
+    'windows-874':         'windows-874',
+    'cp1250':              'windows-1250',
+    'windows-1250':        'windows-1250',
+    'x-cp1250':            'windows-1250',
+    'cp1251':              'windows-1251',
+    'windows-1251':        'windows-1251',
+    'x-cp1251':            'windows-1251',
+    'ansi_x3.4-1968':      'windows-1252',
+    'ascii':               'windows-1252',
+    'cp1252':              'windows-1252',
+    'cp819':               'windows-1252',
+    'csisolatin1':         'windows-1252',
+    'ibm819':              'windows-1252',
+    'iso-8859-1':          'windows-1252',
+    'iso-ir-100':          'windows-1252',
+    'iso8859-1':           'windows-1252',
+    'iso88591':            'windows-1252',
+    'iso_8859-1':          'windows-1252',
+    'iso_8859-1:1987':     'windows-1252',
+    'l1':                  'windows-1252',
+    'latin1':              'windows-1252',
+    'us-ascii':            'windows-1252',
+    'windows-1252':        'windows-1252',
+    'x-cp1252':            'windows-1252',
+    'cp1253':              'windows-1253',
+    'windows-1253':        'windows-1253',
+    'x-cp1253':            'windows-1253',
+    'cp1254':              'windows-1254',
+    'csisolatin5':         'windows-1254',
+    'iso-8859-9':          'windows-1254',
+    'iso-ir-148':          'windows-1254',
+    'iso8859-9':           'windows-1254',
+    'iso88599':            'windows-1254',
+    'iso_8859-9':          'windows-1254',
+    'iso_8859-9:1989':     'windows-1254',
+    'l5':                  'windows-1254',
+    'latin5':              'windows-1254',
+    'windows-1254':        'windows-1254',
+    'x-cp1254':            'windows-1254',
+    'cp1255':              'windows-1255',
+    'windows-1255':        'windows-1255',
+    'x-cp1255':            'windows-1255',
+    'cp1256':              'windows-1256',
+    'windows-1256':        'windows-1256',
+    'x-cp1256':            'windows-1256',
+    'cp1257':              'windows-1257',
+    'windows-1257':        'windows-1257',
+    'x-cp1257':            'windows-1257',
+    'cp1258':              'windows-1258',
+    'windows-1258':        'windows-1258',
+    'x-cp1258':            'windows-1258',
+    'x-mac-cyrillic':      'x-mac-cyrillic',
+    'x-mac-ukrainian':     'x-mac-cyrillic',
+    'chinese':             'gbk',
+    'csgb2312':            'gbk',
+    'csiso58gb231280':     'gbk',
+    'gb2312':              'gbk',
+    'gb_2312':             'gbk',
+    'gb_2312-80':          'gbk',
+    'gbk':                 'gbk',
+    'iso-ir-58':           'gbk',
+    'x-gbk':               'gbk',
+    'gb18030':             'gb18030',
+    'hz-gb-2312':          'hz-gb-2312',
+    'big5':                'big5',
+    'big5-hkscs':          'big5',
+    'cn-big5':             'big5',
+    'csbig5':              'big5',
+    'x-x-big5':            'big5',
+    'cseucpkdfmtjapanese': 'euc-jp',
+    'euc-jp':              'euc-jp',
+    'x-euc-jp':            'euc-jp',
+    'csiso2022jp':         'iso-2022-jp',
+    'iso-2022-jp':         'iso-2022-jp',
+    'csshiftjis':          'shift_jis',
+    'ms_kanji':            'shift_jis',
+    'shift-jis':           'shift_jis',
+    'shift_jis':           'shift_jis',
+    'sjis':                'shift_jis',
+    'windows-31j':         'shift_jis',
+    'x-sjis':              'shift_jis',
+    'cseuckr':             'euc-kr',
+    'csksc56011987':       'euc-kr',
+    'euc-kr':              'euc-kr',
+    'iso-ir-149':          'euc-kr',
+    'korean':              'euc-kr',
+    'ks_c_5601-1987':      'euc-kr',
+    'ks_c_5601-1989':      'euc-kr',
+    'ksc5601':             'euc-kr',
+    'ksc_5601':            'euc-kr',
+    'windows-949':         'euc-kr',
+    'csiso2022kr':         'iso-2022-kr',
+    'iso-2022-kr':         'iso-2022-kr',
+    'utf-16be':            'utf-16be',
+    'utf-16':              'utf-16le',
+    'utf-16le':            'utf-16le',
+    'x-user-defined':      'x-user-defined',
+}
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py
new file mode 100644
index 0000000..295dc92
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py
@@ -0,0 +1,59 @@
+"""
+
+    webencodings.mklabels
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Regenarate the webencodings.labels module.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+import json
+try:
+    from urllib import urlopen
+except ImportError:
+    from urllib.request import urlopen
+
+
+def assert_lower(string):
+    assert string == string.lower()
+    return string
+
+
+def generate(url):
+    parts = ['''\
+"""
+
+    webencodings.labels
+    ~~~~~~~~~~~~~~~~~~~
+
+    Map encoding labels to their name.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+# XXX Do not edit!
+# This file is automatically generated by mklabels.py
+
+LABELS = {
+''']
+    labels = [
+        (repr(assert_lower(label)).lstrip('u'),
+         repr(encoding['name']).lstrip('u'))
+        for category in json.loads(urlopen(url).read().decode('ascii'))
+        for encoding in category['encodings']
+        for label in encoding['labels']]
+    max_len = max(len(label) for label, name in labels)
+    parts.extend(
+        '    %s:%s %s,\n' % (label, ' ' * (max_len - len(label)), name)
+        for label, name in labels)
+    parts.append('}')
+    return ''.join(parts)
+
+
+if __name__ == '__main__':
+    print(generate('http://encoding.spec.whatwg.org/encodings.json'))
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py
new file mode 100644
index 0000000..b8c5653
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py
@@ -0,0 +1,153 @@
+# coding: utf8
+"""
+
+    webencodings.tests
+    ~~~~~~~~~~~~~~~~~~
+
+    A basic test suite for Encoding.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+from . import (lookup, LABELS, decode, encode, iter_decode, iter_encode,
+               IncrementalDecoder, IncrementalEncoder, UTF8)
+
+
+def assert_raises(exception, function, *args, **kwargs):
+    try:
+        function(*args, **kwargs)
+    except exception:
+        return
+    else:  # pragma: no cover
+        raise AssertionError('Did not raise %s.' % exception)
+
+
+def test_labels():
+    assert lookup('utf-8').name == 'utf-8'
+    assert lookup('Utf-8').name == 'utf-8'
+    assert lookup('UTF-8').name == 'utf-8'
+    assert lookup('utf8').name == 'utf-8'
+    assert lookup('utf8').name == 'utf-8'
+    assert lookup('utf8 ').name == 'utf-8'
+    assert lookup(' \r\nutf8\t').name == 'utf-8'
+    assert lookup('u8') is None  # Python label.
+    assert lookup('utf-8 ') is None  # Non-ASCII white space.
+
+    assert lookup('US-ASCII').name == 'windows-1252'
+    assert lookup('iso-8859-1').name == 'windows-1252'
+    assert lookup('latin1').name == 'windows-1252'
+    assert lookup('LATIN1').name == 'windows-1252'
+    assert lookup('latin-1') is None
+    assert lookup('LATİN1') is None  # ASCII-only case insensitivity.
+
+
+def test_all_labels():
+    for label in LABELS:
+        assert decode(b'', label) == ('', lookup(label))
+        assert encode('', label) == b''
+        for repeat in [0, 1, 12]:
+            output, _ = iter_decode([b''] * repeat, label)
+            assert list(output) == []
+            assert list(iter_encode([''] * repeat, label)) == []
+        decoder = IncrementalDecoder(label)
+        assert decoder.decode(b'') == ''
+        assert decoder.decode(b'', final=True) == ''
+        encoder = IncrementalEncoder(label)
+        assert encoder.encode('') == b''
+        assert encoder.encode('', final=True) == b''
+    # All encoding names are valid labels too:
+    for name in set(LABELS.values()):
+        assert lookup(name).name == name
+
+
+def test_invalid_label():
+    assert_raises(LookupError, decode, b'\xEF\xBB\xBF\xc3\xa9', 'invalid')
+    assert_raises(LookupError, encode, 'é', 'invalid')
+    assert_raises(LookupError, iter_decode, [], 'invalid')
+    assert_raises(LookupError, iter_encode, [], 'invalid')
+    assert_raises(LookupError, IncrementalDecoder, 'invalid')
+    assert_raises(LookupError, IncrementalEncoder, 'invalid')
+
+
+def test_decode():
+    assert decode(b'\x80', 'latin1') == ('€', lookup('latin1'))
+    assert decode(b'\x80', lookup('latin1')) == ('€', lookup('latin1'))
+    assert decode(b'\xc3\xa9', 'utf8') == ('é', lookup('utf8'))
+    assert decode(b'\xc3\xa9', UTF8) == ('é', lookup('utf8'))
+    assert decode(b'\xc3\xa9', 'ascii') == ('Ã©', lookup('ascii'))
+    assert decode(b'\xEF\xBB\xBF\xc3\xa9', 'ascii') == ('é', lookup('utf8'))  # UTF-8 with BOM
+
+    assert decode(b'\xFE\xFF\x00\xe9', 'ascii') == ('é', lookup('utf-16be'))  # UTF-16-BE with BOM
+    assert decode(b'\xFF\xFE\xe9\x00', 'ascii') == ('é', lookup('utf-16le'))  # UTF-16-LE with BOM
+    assert decode(b'\xFE\xFF\xe9\x00', 'ascii') == ('\ue900', lookup('utf-16be'))
+    assert decode(b'\xFF\xFE\x00\xe9', 'ascii') == ('\ue900', lookup('utf-16le'))
+
+    assert decode(b'\x00\xe9', 'UTF-16BE') == ('é', lookup('utf-16be'))
+    assert decode(b'\xe9\x00', 'UTF-16LE') == ('é', lookup('utf-16le'))
+    assert decode(b'\xe9\x00', 'UTF-16') == ('é', lookup('utf-16le'))
+
+    assert decode(b'\xe9\x00', 'UTF-16BE') == ('\ue900', lookup('utf-16be'))
+    assert decode(b'\x00\xe9', 'UTF-16LE') == ('\ue900', lookup('utf-16le'))
+    assert decode(b'\x00\xe9', 'UTF-16') == ('\ue900', lookup('utf-16le'))
+
+
+def test_encode():
+    assert encode('é', 'latin1') == b'\xe9'
+    assert encode('é', 'utf8') == b'\xc3\xa9'
+    assert encode('é', 'utf8') == b'\xc3\xa9'
+    assert encode('é', 'utf-16') == b'\xe9\x00'
+    assert encode('é', 'utf-16le') == b'\xe9\x00'
+    assert encode('é', 'utf-16be') == b'\x00\xe9'
+
+
+def test_iter_decode():
+    def iter_decode_to_string(input, fallback_encoding):
+        output, _encoding = iter_decode(input, fallback_encoding)
+        return ''.join(output)
+    assert iter_decode_to_string([], 'latin1') == ''
+    assert iter_decode_to_string([b''], 'latin1') == ''
+    assert iter_decode_to_string([b'\xe9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'hello'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'he', b'llo'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'hell', b'o'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'\xc3\xa9'], 'latin1') == 'Ã©'
+    assert iter_decode_to_string([b'\xEF\xBB\xBF\xc3\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'\xEF\xBB\xBF', b'\xc3', b'\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'\xEF\xBB\xBF', b'a', b'\xc3'], 'latin1') == 'a\uFFFD'
+    assert iter_decode_to_string([
+        b'', b'\xEF', b'', b'', b'\xBB\xBF\xc3', b'\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'\xEF\xBB\xBF'], 'latin1') == ''
+    assert iter_decode_to_string([b'\xEF\xBB'], 'latin1') == 'ï»'
+    assert iter_decode_to_string([b'\xFE\xFF\x00\xe9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'\xFF\xFE\xe9\x00'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'', b'\xFF', b'', b'', b'\xFE\xe9', b'\x00'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'', b'h\xe9', b'llo'], 'x-user-defined') == 'h\uF7E9llo'
+
+
+def test_iter_encode():
+    assert b''.join(iter_encode([], 'latin1')) == b''
+    assert b''.join(iter_encode([''], 'latin1')) == b''
+    assert b''.join(iter_encode(['é'], 'latin1')) == b'\xe9'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'latin1')) == b'\xe9'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16')) == b'\xe9\x00'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16le')) == b'\xe9\x00'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16be')) == b'\x00\xe9'
+    assert b''.join(iter_encode([
+        '', 'h\uF7E9', '', 'llo'], 'x-user-defined')) == b'h\xe9llo'
+
+
+def test_x_user_defined():
+    encoded = b'2,\x0c\x0b\x1aO\xd9#\xcb\x0f\xc9\xbbt\xcf\xa8\xca'
+    decoded = '2,\x0c\x0b\x1aO\uf7d9#\uf7cb\x0f\uf7c9\uf7bbt\uf7cf\uf7a8\uf7ca'
+    encoded = b'aa'
+    decoded = 'aa'
+    assert decode(encoded, 'x-user-defined') == (decoded, lookup('x-user-defined'))
+    assert encode(decoded, 'x-user-defined') == encoded
diff --git a/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py
new file mode 100644
index 0000000..f0daa11
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py
@@ -0,0 +1,325 @@
+# coding: utf8
+"""
+
+    webencodings.x_user_defined
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    An implementation of the x-user-defined encoding.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+import codecs
+
+
+### Codec APIs
+
+class Codec(codecs.Codec):
+
+    def encode(self, input, errors='strict'):
+        return codecs.charmap_encode(input, errors, encoding_table)
+
+    def decode(self, input, errors='strict'):
+        return codecs.charmap_decode(input, errors, decoding_table)
+
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    def encode(self, input, final=False):
+        return codecs.charmap_encode(input, self.errors, encoding_table)[0]
+
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+    def decode(self, input, final=False):
+        return codecs.charmap_decode(input, self.errors, decoding_table)[0]
+
+
+class StreamWriter(Codec, codecs.StreamWriter):
+    pass
+
+
+class StreamReader(Codec, codecs.StreamReader):
+    pass
+
+
+### encodings module API
+
+codec_info = codecs.CodecInfo(
+    name='x-user-defined',
+    encode=Codec().encode,
+    decode=Codec().decode,
+    incrementalencoder=IncrementalEncoder,
+    incrementaldecoder=IncrementalDecoder,
+    streamreader=StreamReader,
+    streamwriter=StreamWriter,
+)
+
+
+### Decoding Table
+
+# Python 3:
+# for c in range(256): print('    %r' % chr(c if c < 128 else c + 0xF700))
+decoding_table = (
+    '\x00'
+    '\x01'
+    '\x02'
+    '\x03'
+    '\x04'
+    '\x05'
+    '\x06'
+    '\x07'
+    '\x08'
+    '\t'
+    '\n'
+    '\x0b'
+    '\x0c'
+    '\r'
+    '\x0e'
+    '\x0f'
+    '\x10'
+    '\x11'
+    '\x12'
+    '\x13'
+    '\x14'
+    '\x15'
+    '\x16'
+    '\x17'
+    '\x18'
+    '\x19'
+    '\x1a'
+    '\x1b'
+    '\x1c'
+    '\x1d'
+    '\x1e'
+    '\x1f'
+    ' '
+    '!'
+    '"'
+    '#'
+    '$'
+    '%'
+    '&'
+    "'"
+    '('
+    ')'
+    '*'
+    '+'
+    ','
+    '-'
+    '.'
+    '/'
+    '0'
+    '1'
+    '2'
+    '3'
+    '4'
+    '5'
+    '6'
+    '7'
+    '8'
+    '9'
+    ':'
+    ';'
+    '<'
+    '='
+    '>'
+    '?'
+    '@'
+    'A'
+    'B'
+    'C'
+    'D'
+    'E'
+    'F'
+    'G'
+    'H'
+    'I'
+    'J'
+    'K'
+    'L'
+    'M'
+    'N'
+    'O'
+    'P'
+    'Q'
+    'R'
+    'S'
+    'T'
+    'U'
+    'V'
+    'W'
+    'X'
+    'Y'
+    'Z'
+    '['
+    '\\'
+    ']'
+    '^'
+    '_'
+    '`'
+    'a'
+    'b'
+    'c'
+    'd'
+    'e'
+    'f'
+    'g'
+    'h'
+    'i'
+    'j'
+    'k'
+    'l'
+    'm'
+    'n'
+    'o'
+    'p'
+    'q'
+    'r'
+    's'
+    't'
+    'u'
+    'v'
+    'w'
+    'x'
+    'y'
+    'z'
+    '{'
+    '|'
+    '}'
+    '~'
+    '\x7f'
+    '\uf780'
+    '\uf781'
+    '\uf782'
+    '\uf783'
+    '\uf784'
+    '\uf785'
+    '\uf786'
+    '\uf787'
+    '\uf788'
+    '\uf789'
+    '\uf78a'
+    '\uf78b'
+    '\uf78c'
+    '\uf78d'
+    '\uf78e'
+    '\uf78f'
+    '\uf790'
+    '\uf791'
+    '\uf792'
+    '\uf793'
+    '\uf794'
+    '\uf795'
+    '\uf796'
+    '\uf797'
+    '\uf798'
+    '\uf799'
+    '\uf79a'
+    '\uf79b'
+    '\uf79c'
+    '\uf79d'
+    '\uf79e'
+    '\uf79f'
+    '\uf7a0'
+    '\uf7a1'
+    '\uf7a2'
+    '\uf7a3'
+    '\uf7a4'
+    '\uf7a5'
+    '\uf7a6'
+    '\uf7a7'
+    '\uf7a8'
+    '\uf7a9'
+    '\uf7aa'
+    '\uf7ab'
+    '\uf7ac'
+    '\uf7ad'
+    '\uf7ae'
+    '\uf7af'
+    '\uf7b0'
+    '\uf7b1'
+    '\uf7b2'
+    '\uf7b3'
+    '\uf7b4'
+    '\uf7b5'
+    '\uf7b6'
+    '\uf7b7'
+    '\uf7b8'
+    '\uf7b9'
+    '\uf7ba'
+    '\uf7bb'
+    '\uf7bc'
+    '\uf7bd'
+    '\uf7be'
+    '\uf7bf'
+    '\uf7c0'
+    '\uf7c1'
+    '\uf7c2'
+    '\uf7c3'
+    '\uf7c4'
+    '\uf7c5'
+    '\uf7c6'
+    '\uf7c7'
+    '\uf7c8'
+    '\uf7c9'
+    '\uf7ca'
+    '\uf7cb'
+    '\uf7cc'
+    '\uf7cd'
+    '\uf7ce'
+    '\uf7cf'
+    '\uf7d0'
+    '\uf7d1'
+    '\uf7d2'
+    '\uf7d3'
+    '\uf7d4'
+    '\uf7d5'
+    '\uf7d6'
+    '\uf7d7'
+    '\uf7d8'
+    '\uf7d9'
+    '\uf7da'
+    '\uf7db'
+    '\uf7dc'
+    '\uf7dd'
+    '\uf7de'
+    '\uf7df'
+    '\uf7e0'
+    '\uf7e1'
+    '\uf7e2'
+    '\uf7e3'
+    '\uf7e4'
+    '\uf7e5'
+    '\uf7e6'
+    '\uf7e7'
+    '\uf7e8'
+    '\uf7e9'
+    '\uf7ea'
+    '\uf7eb'
+    '\uf7ec'
+    '\uf7ed'
+    '\uf7ee'
+    '\uf7ef'
+    '\uf7f0'
+    '\uf7f1'
+    '\uf7f2'
+    '\uf7f3'
+    '\uf7f4'
+    '\uf7f5'
+    '\uf7f6'
+    '\uf7f7'
+    '\uf7f8'
+    '\uf7f9'
+    '\uf7fa'
+    '\uf7fb'
+    '\uf7fc'
+    '\uf7fd'
+    '\uf7fe'
+    '\uf7ff'
+)
+
+### Encoding table
+encoding_table = codecs.charmap_build(decoding_table)
diff --git a/venv/lib/python3.5/site-packages/pip/basecommand.py b/venv/lib/python3.5/site-packages/pip/basecommand.py
new file mode 100644
index 0000000..54c6706
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/basecommand.py
@@ -0,0 +1,337 @@
+"""Base Command class, and related routines"""
+from __future__ import absolute_import
+
+import logging
+import os
+import sys
+import optparse
+import warnings
+
+from pip import cmdoptions
+from pip.index import PackageFinder
+from pip.locations import running_under_virtualenv
+from pip.download import PipSession
+from pip.exceptions import (BadCommand, InstallationError, UninstallationError,
+                            CommandError, PreviousBuildDirError)
+
+from pip.compat import logging_dictConfig
+from pip.baseparser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip.req import InstallRequirement, parse_requirements
+from pip.status_codes import (
+    SUCCESS, ERROR, UNKNOWN_ERROR, VIRTUALENV_NOT_FOUND,
+    PREVIOUS_BUILD_DIR_ERROR,
+)
+from pip.utils import deprecation, get_prog, normalize_path
+from pip.utils.logging import IndentingFormatter
+from pip.utils.outdated import pip_version_check
+
+
+__all__ = ['Command']
+
+
+logger = logging.getLogger(__name__)
+
+
+class Command(object):
+    name = None
+    usage = None
+    hidden = False
+    log_streams = ("ext://sys.stdout", "ext://sys.stderr")
+
+    def __init__(self, isolated=False):
+        parser_kw = {
+            'usage': self.usage,
+            'prog': '%s %s' % (get_prog(), self.name),
+            'formatter': UpdatingDefaultsHelpFormatter(),
+            'add_help_option': False,
+            'name': self.name,
+            'description': self.__doc__,
+            'isolated': isolated,
+        }
+
+        self.parser = ConfigOptionParser(**parser_kw)
+
+        # Commands should add options to this option group
+        optgroup_name = '%s Options' % self.name.capitalize()
+        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
+
+        # Add the general options
+        gen_opts = cmdoptions.make_option_group(
+            cmdoptions.general_group,
+            self.parser,
+        )
+        self.parser.add_option_group(gen_opts)
+
+    def _build_session(self, options, retries=None, timeout=None):
+        session = PipSession(
+            cache=(
+                normalize_path(os.path.join(options.cache_dir, "http"))
+                if options.cache_dir else None
+            ),
+            retries=retries if retries is not None else options.retries,
+            insecure_hosts=options.trusted_hosts,
+        )
+
+        # Handle custom ca-bundles from the user
+        if options.cert:
+            session.verify = options.cert
+
+        # Handle SSL client certificate
+        if options.client_cert:
+            session.cert = options.client_cert
+
+        # Handle timeouts
+        if options.timeout or timeout:
+            session.timeout = (
+                timeout if timeout is not None else options.timeout
+            )
+
+        # Handle configured proxies
+        if options.proxy:
+            session.proxies = {
+                "http": options.proxy,
+                "https": options.proxy,
+            }
+
+        # Determine if we can prompt the user for authentication or not
+        session.auth.prompting = not options.no_input
+
+        return session
+
+    def parse_args(self, args):
+        # factored out for testability
+        return self.parser.parse_args(args)
+
+    def main(self, args):
+        options, args = self.parse_args(args)
+
+        if options.quiet:
+            if options.quiet == 1:
+                level = "WARNING"
+            if options.quiet == 2:
+                level = "ERROR"
+            else:
+                level = "CRITICAL"
+        elif options.verbose:
+            level = "DEBUG"
+        else:
+            level = "INFO"
+
+        # The root logger should match the "console" level *unless* we
+        # specified "--log" to send debug logs to a file.
+        root_level = level
+        if options.log:
+            root_level = "DEBUG"
+
+        logging_dictConfig({
+            "version": 1,
+            "disable_existing_loggers": False,
+            "filters": {
+                "exclude_warnings": {
+                    "()": "pip.utils.logging.MaxLevelFilter",
+                    "level": logging.WARNING,
+                },
+            },
+            "formatters": {
+                "indent": {
+                    "()": IndentingFormatter,
+                    "format": "%(message)s",
+                },
+            },
+            "handlers": {
+                "console": {
+                    "level": level,
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[0],
+                    "filters": ["exclude_warnings"],
+                    "formatter": "indent",
+                },
+                "console_errors": {
+                    "level": "WARNING",
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[1],
+                    "formatter": "indent",
+                },
+                "user_log": {
+                    "level": "DEBUG",
+                    "class": "pip.utils.logging.BetterRotatingFileHandler",
+                    "filename": options.log or "/dev/null",
+                    "delay": True,
+                    "formatter": "indent",
+                },
+            },
+            "root": {
+                "level": root_level,
+                "handlers": list(filter(None, [
+                    "console",
+                    "console_errors",
+                    "user_log" if options.log else None,
+                ])),
+            },
+            # Disable any logging besides WARNING unless we have DEBUG level
+            # logging enabled. These use both pip._vendor and the bare names
+            # for the case where someone unbundles our libraries.
+            "loggers": dict(
+                (
+                    name,
+                    {
+                        "level": (
+                            "WARNING"
+                            if level in ["INFO", "ERROR"]
+                            else "DEBUG"
+                        ),
+                    },
+                )
+                for name in ["pip._vendor", "distlib", "requests", "urllib3"]
+            ),
+        })
+
+        if sys.version_info[:2] == (2, 6):
+            warnings.warn(
+                "Python 2.6 is no longer supported by the Python core team, "
+                "please upgrade your Python. A future version of pip will "
+                "drop support for Python 2.6",
+                deprecation.Python26DeprecationWarning
+            )
+
+        # TODO: try to get these passing down from the command?
+        #      without resorting to os.environ to hold these.
+
+        if options.no_input:
+            os.environ['PIP_NO_INPUT'] = '1'
+
+        if options.exists_action:
+            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)
+
+        if options.require_venv:
+            # If a venv is required check if it can really be found
+            if not running_under_virtualenv():
+                logger.critical(
+                    'Could not find an activated virtualenv (required).'
+                )
+                sys.exit(VIRTUALENV_NOT_FOUND)
+
+        try:
+            status = self.run(options, args)
+            # FIXME: all commands should return an exit status
+            # and when it is done, isinstance is not needed anymore
+            if isinstance(status, int):
+                return status
+        except PreviousBuildDirError as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return PREVIOUS_BUILD_DIR_ERROR
+        except (InstallationError, UninstallationError, BadCommand) as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except CommandError as exc:
+            logger.critical('ERROR: %s', exc)
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except KeyboardInterrupt:
+            logger.critical('Operation cancelled by user')
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except:
+            logger.critical('Exception:', exc_info=True)
+
+            return UNKNOWN_ERROR
+        finally:
+            # Check if we're using the latest version of pip available
+            if (not options.disable_pip_version_check and not
+                    getattr(options, "no_index", False)):
+                with self._build_session(
+                        options,
+                        retries=0,
+                        timeout=min(5, options.timeout)) as session:
+                    pip_version_check(session)
+
+        return SUCCESS
+
+
+class RequirementCommand(Command):
+
+    @staticmethod
+    def populate_requirement_set(requirement_set, args, options, finder,
+                                 session, name, wheel_cache):
+        """
+        Marshal cmd line args into a requirement set.
+        """
+        for filename in options.constraints:
+            for req in parse_requirements(
+                    filename,
+                    constraint=True, finder=finder, options=options,
+                    session=session, wheel_cache=wheel_cache):
+                requirement_set.add_requirement(req)
+
+        for req in args:
+            requirement_set.add_requirement(
+                InstallRequirement.from_line(
+                    req, None, isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        for req in options.editables:
+            requirement_set.add_requirement(
+                InstallRequirement.from_editable(
+                    req,
+                    default_vcs=options.default_vcs,
+                    isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        found_req_in_file = False
+        for filename in options.requirements:
+            for req in parse_requirements(
+                    filename,
+                    finder=finder, options=options, session=session,
+                    wheel_cache=wheel_cache):
+                found_req_in_file = True
+                requirement_set.add_requirement(req)
+        # If --require-hashes was a line in a requirements file, tell
+        # RequirementSet about it:
+        requirement_set.require_hashes = options.require_hashes
+
+        if not (args or options.editables or found_req_in_file):
+            opts = {'name': name}
+            if options.find_links:
+                msg = ('You must give at least one requirement to '
+                       '%(name)s (maybe you meant "pip %(name)s '
+                       '%(links)s"?)' %
+                       dict(opts, links=' '.join(options.find_links)))
+            else:
+                msg = ('You must give at least one requirement '
+                       'to %(name)s (see "pip help %(name)s")' % opts)
+            logger.warning(msg)
+
+    def _build_package_finder(self, options, session,
+                              platform=None, python_versions=None,
+                              abi=None, implementation=None):
+        """
+        Create a package finder appropriate to this requirement command.
+        """
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        return PackageFinder(
+            find_links=options.find_links,
+            format_control=options.format_control,
+            index_urls=index_urls,
+            trusted_hosts=options.trusted_hosts,
+            allow_all_prereleases=options.pre,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+            platform=platform,
+            versions=python_versions,
+            abi=abi,
+            implementation=implementation,
+        )
diff --git a/venv/lib/python3.5/site-packages/pip/baseparser.py b/venv/lib/python3.5/site-packages/pip/baseparser.py
new file mode 100644
index 0000000..2dd4533
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/baseparser.py
@@ -0,0 +1,293 @@
+"""Base option parser setup"""
+from __future__ import absolute_import
+
+import sys
+import optparse
+import os
+import re
+import textwrap
+from distutils.util import strtobool
+
+from pip._vendor.six import string_types
+from pip._vendor.six.moves import configparser
+from pip.locations import (
+    legacy_config_file, config_basename, running_under_virtualenv,
+    site_config_files
+)
+from pip.utils import appdirs, get_terminal_size
+
+
+_environ_prefix_re = re.compile(r"^PIP_", re.I)
+
+
+class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
+    """A prettier/less verbose help formatter for optparse."""
+
+    def __init__(self, *args, **kwargs):
+        # help position must be aligned with __init__.parseopts.description
+        kwargs['max_help_position'] = 30
+        kwargs['indent_increment'] = 1
+        kwargs['width'] = get_terminal_size()[0] - 2
+        optparse.IndentedHelpFormatter.__init__(self, *args, **kwargs)
+
+    def format_option_strings(self, option):
+        return self._format_option_strings(option, ' <%s>', ', ')
+
+    def _format_option_strings(self, option, mvarfmt=' <%s>', optsep=', '):
+        """
+        Return a comma-separated list of option strings and metavars.
+
+        :param option:  tuple of (short opt, long opt), e.g: ('-f', '--format')
+        :param mvarfmt: metavar format string - evaluated as mvarfmt % metavar
+        :param optsep:  separator
+        """
+        opts = []
+
+        if option._short_opts:
+            opts.append(option._short_opts[0])
+        if option._long_opts:
+            opts.append(option._long_opts[0])
+        if len(opts) > 1:
+            opts.insert(1, optsep)
+
+        if option.takes_value():
+            metavar = option.metavar or option.dest.lower()
+            opts.append(mvarfmt % metavar.lower())
+
+        return ''.join(opts)
+
+    def format_heading(self, heading):
+        if heading == 'Options':
+            return ''
+        return heading + ':\n'
+
+    def format_usage(self, usage):
+        """
+        Ensure there is only one newline between usage and the first heading
+        if there is no description.
+        """
+        msg = '\nUsage: %s\n' % self.indent_lines(textwrap.dedent(usage), "  ")
+        return msg
+
+    def format_description(self, description):
+        # leave full control over description to us
+        if description:
+            if hasattr(self.parser, 'main'):
+                label = 'Commands'
+            else:
+                label = 'Description'
+            # some doc strings have initial newlines, some don't
+            description = description.lstrip('\n')
+            # some doc strings have final newlines and spaces, some don't
+            description = description.rstrip()
+            # dedent, then reindent
+            description = self.indent_lines(textwrap.dedent(description), "  ")
+            description = '%s:\n%s\n' % (label, description)
+            return description
+        else:
+            return ''
+
+    def format_epilog(self, epilog):
+        # leave full control over epilog to us
+        if epilog:
+            return epilog
+        else:
+            return ''
+
+    def indent_lines(self, text, indent):
+        new_lines = [indent + line for line in text.split('\n')]
+        return "\n".join(new_lines)
+
+
+class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
+    """Custom help formatter for use in ConfigOptionParser.
+
+    This is updates the defaults before expanding them, allowing
+    them to show up correctly in the help listing.
+    """
+
+    def expand_default(self, option):
+        if self.parser is not None:
+            self.parser._update_defaults(self.parser.defaults)
+        return optparse.IndentedHelpFormatter.expand_default(self, option)
+
+
+class CustomOptionParser(optparse.OptionParser):
+
+    def insert_option_group(self, idx, *args, **kwargs):
+        """Insert an OptionGroup at a given position."""
+        group = self.add_option_group(*args, **kwargs)
+
+        self.option_groups.pop()
+        self.option_groups.insert(idx, group)
+
+        return group
+
+    @property
+    def option_list_all(self):
+        """Get a list of all options, including those in option groups."""
+        res = self.option_list[:]
+        for i in self.option_groups:
+            res.extend(i.option_list)
+
+        return res
+
+
+class ConfigOptionParser(CustomOptionParser):
+    """Custom option parser which updates its defaults by checking the
+    configuration files and environmental variables"""
+
+    isolated = False
+
+    def __init__(self, *args, **kwargs):
+        self.config = configparser.RawConfigParser()
+        self.name = kwargs.pop('name')
+        self.isolated = kwargs.pop("isolated", False)
+        self.files = self.get_config_files()
+        if self.files:
+            self.config.read(self.files)
+        assert self.name
+        optparse.OptionParser.__init__(self, *args, **kwargs)
+
+    def get_config_files(self):
+        # the files returned by this method will be parsed in order with the
+        # first files listed being overridden by later files in standard
+        # ConfigParser fashion
+        config_file = os.environ.get('PIP_CONFIG_FILE', False)
+        if config_file == os.devnull:
+            return []
+
+        # at the base we have any site-wide configuration
+        files = list(site_config_files)
+
+        # per-user configuration next
+        if not self.isolated:
+            if config_file and os.path.exists(config_file):
+                files.append(config_file)
+            else:
+                # This is the legacy config file, we consider it to be a lower
+                # priority than the new file location.
+                files.append(legacy_config_file)
+
+                # This is the new config file, we consider it to be a higher
+                # priority than the legacy file.
+                files.append(
+                    os.path.join(
+                        appdirs.user_config_dir("pip"),
+                        config_basename,
+                    )
+                )
+
+        # finally virtualenv configuration first trumping others
+        if running_under_virtualenv():
+            venv_config_file = os.path.join(
+                sys.prefix,
+                config_basename,
+            )
+            if os.path.exists(venv_config_file):
+                files.append(venv_config_file)
+
+        return files
+
+    def check_default(self, option, key, val):
+        try:
+            return option.check_value(key, val)
+        except optparse.OptionValueError as exc:
+            print("An error occurred during configuration: %s" % exc)
+            sys.exit(3)
+
+    def _update_defaults(self, defaults):
+        """Updates the given defaults with values from the config files and
+        the environ. Does a little special handling for certain types of
+        options (lists)."""
+        # Then go and look for the other sources of configuration:
+        config = {}
+        # 1. config files
+        for section in ('global', self.name):
+            config.update(
+                self.normalize_keys(self.get_config_section(section))
+            )
+        # 2. environmental variables
+        if not self.isolated:
+            config.update(self.normalize_keys(self.get_environ_vars()))
+        # Accumulate complex default state.
+        self.values = optparse.Values(self.defaults)
+        late_eval = set()
+        # Then set the options with those values
+        for key, val in config.items():
+            # ignore empty values
+            if not val:
+                continue
+
+            option = self.get_option(key)
+            # Ignore options not present in this parser. E.g. non-globals put
+            # in [global] by users that want them to apply to all applicable
+            # commands.
+            if option is None:
+                continue
+
+            if option.action in ('store_true', 'store_false', 'count'):
+                val = strtobool(val)
+            elif option.action == 'append':
+                val = val.split()
+                val = [self.check_default(option, key, v) for v in val]
+            elif option.action == 'callback':
+                late_eval.add(option.dest)
+                opt_str = option.get_opt_string()
+                val = option.convert_value(opt_str, val)
+                # From take_action
+                args = option.callback_args or ()
+                kwargs = option.callback_kwargs or {}
+                option.callback(option, opt_str, val, self, *args, **kwargs)
+            else:
+                val = self.check_default(option, key, val)
+
+            defaults[option.dest] = val
+
+        for key in late_eval:
+            defaults[key] = getattr(self.values, key)
+        self.values = None
+        return defaults
+
+    def normalize_keys(self, items):
+        """Return a config dictionary with normalized keys regardless of
+        whether the keys were specified in environment variables or in config
+        files"""
+        normalized = {}
+        for key, val in items:
+            key = key.replace('_', '-')
+            if not key.startswith('--'):
+                key = '--%s' % key  # only prefer long opts
+            normalized[key] = val
+        return normalized
+
+    def get_config_section(self, name):
+        """Get a section of a configuration"""
+        if self.config.has_section(name):
+            return self.config.items(name)
+        return []
+
+    def get_environ_vars(self):
+        """Returns a generator with all environmental vars with prefix PIP_"""
+        for key, val in os.environ.items():
+            if _environ_prefix_re.search(key):
+                yield (_environ_prefix_re.sub("", key).lower(), val)
+
+    def get_default_values(self):
+        """Overriding to make updating the defaults after instantiation of
+        the option parser possible, _update_defaults() does the dirty work."""
+        if not self.process_default_values:
+            # Old, pre-Optik 1.5 behaviour.
+            return optparse.Values(self.defaults)
+
+        defaults = self._update_defaults(self.defaults.copy())  # ours
+        for option in self._get_all_options():
+            default = defaults.get(option.dest)
+            if isinstance(default, string_types):
+                opt_str = option.get_opt_string()
+                defaults[option.dest] = option.check_value(opt_str, default)
+        return optparse.Values(defaults)
+
+    def error(self, msg):
+        self.print_usage(sys.stderr)
+        self.exit(2, "%s\n" % msg)
diff --git a/venv/lib/python3.5/site-packages/pip/cmdoptions.py b/venv/lib/python3.5/site-packages/pip/cmdoptions.py
new file mode 100644
index 0000000..f71488c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/cmdoptions.py
@@ -0,0 +1,633 @@
+"""
+shared options and groups
+
+The principle here is to define options once, but *not* instantiate them
+globally. One reason being that options with action='append' can carry state
+between parses. pip parses general options twice internally, and shouldn't
+pass on state. To be consistent, all options will follow this design.
+
+"""
+from __future__ import absolute_import
+
+from functools import partial
+from optparse import OptionGroup, SUPPRESS_HELP, Option
+import warnings
+
+from pip.index import (
+    FormatControl, fmt_ctl_handle_mutual_exclude, fmt_ctl_no_binary,
+    fmt_ctl_no_use_wheel)
+from pip.models import PyPI
+from pip.locations import USER_CACHE_DIR, src_prefix
+from pip.utils.hashes import STRONG_HASHES
+
+
+def make_option_group(group, parser):
+    """
+    Return an OptionGroup object
+    group  -- assumed to be dict with 'name' and 'options' keys
+    parser -- an optparse Parser
+    """
+    option_group = OptionGroup(parser, group['name'])
+    for option in group['options']:
+        option_group.add_option(option())
+    return option_group
+
+
+def resolve_wheel_no_use_binary(options):
+    if not options.use_wheel:
+        control = options.format_control
+        fmt_ctl_no_use_wheel(control)
+
+
+def check_install_build_global(options, check_options=None):
+    """Disable wheels if per-setup.py call options are set.
+
+    :param options: The OptionParser options to update.
+    :param check_options: The options to check, if not supplied defaults to
+        options.
+    """
+    if check_options is None:
+        check_options = options
+
+    def getname(n):
+        return getattr(check_options, n, None)
+    names = ["build_options", "global_options", "install_options"]
+    if any(map(getname, names)):
+        control = options.format_control
+        fmt_ctl_no_binary(control)
+        warnings.warn(
+            'Disabling all use of wheels due to the use of --build-options '
+            '/ --global-options / --install-options.', stacklevel=2)
+
+
+###########
+# options #
+###########
+
+help_ = partial(
+    Option,
+    '-h', '--help',
+    dest='help',
+    action='help',
+    help='Show help.')
+
+isolated_mode = partial(
+    Option,
+    "--isolated",
+    dest="isolated_mode",
+    action="store_true",
+    default=False,
+    help=(
+        "Run pip in an isolated mode, ignoring environment variables and user "
+        "configuration."
+    ),
+)
+
+require_virtualenv = partial(
+    Option,
+    # Run only if inside a virtualenv, bail if not.
+    '--require-virtualenv', '--require-venv',
+    dest='require_venv',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP)
+
+verbose = partial(
+    Option,
+    '-v', '--verbose',
+    dest='verbose',
+    action='count',
+    default=0,
+    help='Give more output. Option is additive, and can be used up to 3 times.'
+)
+
+version = partial(
+    Option,
+    '-V', '--version',
+    dest='version',
+    action='store_true',
+    help='Show version and exit.')
+
+quiet = partial(
+    Option,
+    '-q', '--quiet',
+    dest='quiet',
+    action='count',
+    default=0,
+    help=('Give less output. Option is additive, and can be used up to 3'
+          ' times (corresponding to WARNING, ERROR, and CRITICAL logging'
+          ' levels).')
+)
+
+log = partial(
+    Option,
+    "--log", "--log-file", "--local-log",
+    dest="log",
+    metavar="path",
+    help="Path to a verbose appending log."
+)
+
+no_input = partial(
+    Option,
+    # Don't ask for input
+    '--no-input',
+    dest='no_input',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP)
+
+proxy = partial(
+    Option,
+    '--proxy',
+    dest='proxy',
+    type='str',
+    default='',
+    help="Specify a proxy in the form [user:passwd@]proxy.server:port.")
+
+retries = partial(
+    Option,
+    '--retries',
+    dest='retries',
+    type='int',
+    default=5,
+    help="Maximum number of retries each connection should attempt "
+         "(default %default times).")
+
+timeout = partial(
+    Option,
+    '--timeout', '--default-timeout',
+    metavar='sec',
+    dest='timeout',
+    type='float',
+    default=15,
+    help='Set the socket timeout (default %default seconds).')
+
+default_vcs = partial(
+    Option,
+    # The default version control system for editables, e.g. 'svn'
+    '--default-vcs',
+    dest='default_vcs',
+    type='str',
+    default='',
+    help=SUPPRESS_HELP)
+
+skip_requirements_regex = partial(
+    Option,
+    # A regex to be used to skip requirements
+    '--skip-requirements-regex',
+    dest='skip_requirements_regex',
+    type='str',
+    default='',
+    help=SUPPRESS_HELP)
+
+
+def exists_action():
+    return Option(
+        # Option when path already exist
+        '--exists-action',
+        dest='exists_action',
+        type='choice',
+        choices=['s', 'i', 'w', 'b', 'a'],
+        default=[],
+        action='append',
+        metavar='action',
+        help="Default action when a path already exists: "
+        "(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.")
+
+
+cert = partial(
+    Option,
+    '--cert',
+    dest='cert',
+    type='str',
+    metavar='path',
+    help="Path to alternate CA bundle.")
+
+client_cert = partial(
+    Option,
+    '--client-cert',
+    dest='client_cert',
+    type='str',
+    default=None,
+    metavar='path',
+    help="Path to SSL client certificate, a single file containing the "
+         "private key and the certificate in PEM format.")
+
+index_url = partial(
+    Option,
+    '-i', '--index-url', '--pypi-url',
+    dest='index_url',
+    metavar='URL',
+    default=PyPI.simple_url,
+    help="Base URL of Python Package Index (default %default). "
+         "This should point to a repository compliant with PEP 503 "
+         "(the simple repository API) or a local directory laid out "
+         "in the same format.")
+
+
+def extra_index_url():
+    return Option(
+        '--extra-index-url',
+        dest='extra_index_urls',
+        metavar='URL',
+        action='append',
+        default=[],
+        help="Extra URLs of package indexes to use in addition to "
+             "--index-url. Should follow the same rules as "
+             "--index-url."
+    )
+
+
+no_index = partial(
+    Option,
+    '--no-index',
+    dest='no_index',
+    action='store_true',
+    default=False,
+    help='Ignore package index (only looking at --find-links URLs instead).')
+
+
+def find_links():
+    return Option(
+        '-f', '--find-links',
+        dest='find_links',
+        action='append',
+        default=[],
+        metavar='url',
+        help="If a url or path to an html file, then parse for links to "
+             "archives. If a local path or file:// url that's a directory, "
+             "then look for archives in the directory listing.")
+
+
+def allow_external():
+    return Option(
+        "--allow-external",
+        dest="allow_external",
+        action="append",
+        default=[],
+        metavar="PACKAGE",
+        help=SUPPRESS_HELP,
+    )
+
+
+allow_all_external = partial(
+    Option,
+    "--allow-all-external",
+    dest="allow_all_external",
+    action="store_true",
+    default=False,
+    help=SUPPRESS_HELP,
+)
+
+
+def trusted_host():
+    return Option(
+        "--trusted-host",
+        dest="trusted_hosts",
+        action="append",
+        metavar="HOSTNAME",
+        default=[],
+        help="Mark this host as trusted, even though it does not have valid "
+             "or any HTTPS.",
+    )
+
+
+# Remove after 7.0
+no_allow_external = partial(
+    Option,
+    "--no-allow-external",
+    dest="allow_all_external",
+    action="store_false",
+    default=False,
+    help=SUPPRESS_HELP,
+)
+
+
+# Remove --allow-insecure after 7.0
+def allow_unsafe():
+    return Option(
+        "--allow-unverified", "--allow-insecure",
+        dest="allow_unverified",
+        action="append",
+        default=[],
+        metavar="PACKAGE",
+        help=SUPPRESS_HELP,
+    )
+
+# Remove after 7.0
+no_allow_unsafe = partial(
+    Option,
+    "--no-allow-insecure",
+    dest="allow_all_insecure",
+    action="store_false",
+    default=False,
+    help=SUPPRESS_HELP
+)
+
+# Remove after 1.5
+process_dependency_links = partial(
+    Option,
+    "--process-dependency-links",
+    dest="process_dependency_links",
+    action="store_true",
+    default=False,
+    help="Enable the processing of dependency links.",
+)
+
+
+def constraints():
+    return Option(
+        '-c', '--constraint',
+        dest='constraints',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Constrain versions using the given constraints file. '
+        'This option can be used multiple times.')
+
+
+def requirements():
+    return Option(
+        '-r', '--requirement',
+        dest='requirements',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Install from the given requirements file. '
+        'This option can be used multiple times.')
+
+
+def editable():
+    return Option(
+        '-e', '--editable',
+        dest='editables',
+        action='append',
+        default=[],
+        metavar='path/url',
+        help=('Install a project in editable mode (i.e. setuptools '
+              '"develop mode") from a local project path or a VCS url.'),
+    )
+
+src = partial(
+    Option,
+    '--src', '--source', '--source-dir', '--source-directory',
+    dest='src_dir',
+    metavar='dir',
+    default=src_prefix,
+    help='Directory to check out editable projects into. '
+    'The default in a virtualenv is "<venv path>/src". '
+    'The default for global installs is "<current dir>/src".'
+)
+
+# XXX: deprecated, remove in 9.0
+use_wheel = partial(
+    Option,
+    '--use-wheel',
+    dest='use_wheel',
+    action='store_true',
+    default=True,
+    help=SUPPRESS_HELP,
+)
+
+# XXX: deprecated, remove in 9.0
+no_use_wheel = partial(
+    Option,
+    '--no-use-wheel',
+    dest='use_wheel',
+    action='store_false',
+    default=True,
+    help=('Do not Find and prefer wheel archives when searching indexes and '
+          'find-links locations. DEPRECATED in favour of --no-binary.'),
+)
+
+
+def _get_format_control(values, option):
+    """Get a format_control object."""
+    return getattr(values, option.dest)
+
+
+def _handle_no_binary(option, opt_str, value, parser):
+    existing = getattr(parser.values, option.dest)
+    fmt_ctl_handle_mutual_exclude(
+        value, existing.no_binary, existing.only_binary)
+
+
+def _handle_only_binary(option, opt_str, value, parser):
+    existing = getattr(parser.values, option.dest)
+    fmt_ctl_handle_mutual_exclude(
+        value, existing.only_binary, existing.no_binary)
+
+
+def no_binary():
+    return Option(
+        "--no-binary", dest="format_control", action="callback",
+        callback=_handle_no_binary, type="str",
+        default=FormatControl(set(), set()),
+        help="Do not use binary packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all binary packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Note that some "
+             "packages are tricky to compile and may fail to install when "
+             "this option is used on them.")
+
+
+def only_binary():
+    return Option(
+        "--only-binary", dest="format_control", action="callback",
+        callback=_handle_only_binary, type="str",
+        default=FormatControl(set(), set()),
+        help="Do not use source packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all source packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Packages without "
+             "binary distributions will fail to install when this option is "
+             "used on them.")
+
+
+cache_dir = partial(
+    Option,
+    "--cache-dir",
+    dest="cache_dir",
+    default=USER_CACHE_DIR,
+    metavar="dir",
+    help="Store the cache data in <dir>."
+)
+
+no_cache = partial(
+    Option,
+    "--no-cache-dir",
+    dest="cache_dir",
+    action="store_false",
+    help="Disable the cache.",
+)
+
+no_deps = partial(
+    Option,
+    '--no-deps', '--no-dependencies',
+    dest='ignore_dependencies',
+    action='store_true',
+    default=False,
+    help="Don't install package dependencies.")
+
+build_dir = partial(
+    Option,
+    '-b', '--build', '--build-dir', '--build-directory',
+    dest='build_dir',
+    metavar='dir',
+    help='Directory to unpack packages into and build in.'
+)
+
+ignore_requires_python = partial(
+    Option,
+    '--ignore-requires-python',
+    dest='ignore_requires_python',
+    action='store_true',
+    help='Ignore the Requires-Python information.')
+
+install_options = partial(
+    Option,
+    '--install-option',
+    dest='install_options',
+    action='append',
+    metavar='options',
+    help="Extra arguments to be supplied to the setup.py install "
+         "command (use like --install-option=\"--install-scripts=/usr/local/"
+         "bin\"). Use multiple --install-option options to pass multiple "
+         "options to setup.py install. If you are using an option with a "
+         "directory path, be sure to use absolute path.")
+
+global_options = partial(
+    Option,
+    '--global-option',
+    dest='global_options',
+    action='append',
+    metavar='options',
+    help="Extra global options to be supplied to the setup.py "
+         "call before the install command.")
+
+no_clean = partial(
+    Option,
+    '--no-clean',
+    action='store_true',
+    default=False,
+    help="Don't clean up build directories.")
+
+pre = partial(
+    Option,
+    '--pre',
+    action='store_true',
+    default=False,
+    help="Include pre-release and development versions. By default, "
+         "pip only finds stable versions.")
+
+disable_pip_version_check = partial(
+    Option,
+    "--disable-pip-version-check",
+    dest="disable_pip_version_check",
+    action="store_true",
+    default=False,
+    help="Don't periodically check PyPI to determine whether a new version "
+         "of pip is available for download. Implied with --no-index.")
+
+# Deprecated, Remove later
+always_unzip = partial(
+    Option,
+    '-Z', '--always-unzip',
+    dest='always_unzip',
+    action='store_true',
+    help=SUPPRESS_HELP,
+)
+
+
+def _merge_hash(option, opt_str, value, parser):
+    """Given a value spelled "algo:digest", append the digest to a list
+    pointed to in a dict by the algo name."""
+    if not parser.values.hashes:
+        parser.values.hashes = {}
+    try:
+        algo, digest = value.split(':', 1)
+    except ValueError:
+        parser.error('Arguments to %s must be a hash name '
+                     'followed by a value, like --hash=sha256:abcde...' %
+                     opt_str)
+    if algo not in STRONG_HASHES:
+        parser.error('Allowed hash algorithms for %s are %s.' %
+                     (opt_str, ', '.join(STRONG_HASHES)))
+    parser.values.hashes.setdefault(algo, []).append(digest)
+
+
+hash = partial(
+    Option,
+    '--hash',
+    # Hash values eventually end up in InstallRequirement.hashes due to
+    # __dict__ copying in process_line().
+    dest='hashes',
+    action='callback',
+    callback=_merge_hash,
+    type='string',
+    help="Verify that the package's archive matches this "
+         'hash before installing. Example: --hash=sha256:abcdef...')
+
+
+require_hashes = partial(
+    Option,
+    '--require-hashes',
+    dest='require_hashes',
+    action='store_true',
+    default=False,
+    help='Require a hash to check each requirement against, for '
+         'repeatable installs. This option is implied when any package in a '
+         'requirements file has a --hash option.')
+
+
+##########
+# groups #
+##########
+
+general_group = {
+    'name': 'General Options',
+    'options': [
+        help_,
+        isolated_mode,
+        require_virtualenv,
+        verbose,
+        version,
+        quiet,
+        log,
+        no_input,
+        proxy,
+        retries,
+        timeout,
+        default_vcs,
+        skip_requirements_regex,
+        exists_action,
+        trusted_host,
+        cert,
+        client_cert,
+        cache_dir,
+        no_cache,
+        disable_pip_version_check,
+    ]
+}
+
+non_deprecated_index_group = {
+    'name': 'Package Index Options',
+    'options': [
+        index_url,
+        extra_index_url,
+        no_index,
+        find_links,
+        process_dependency_links,
+    ]
+}
+
+index_group = {
+    'name': 'Package Index Options (including deprecated options)',
+    'options': non_deprecated_index_group['options'] + [
+        allow_external,
+        allow_all_external,
+        no_allow_external,
+        allow_unsafe,
+        no_allow_unsafe,
+    ]
+}
diff --git a/venv/lib/python3.5/site-packages/pip/commands/__init__.py b/venv/lib/python3.5/site-packages/pip/commands/__init__.py
new file mode 100644
index 0000000..62c64eb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/__init__.py
@@ -0,0 +1,86 @@
+"""
+Package containing all pip commands
+"""
+from __future__ import absolute_import
+
+from pip.commands.completion import CompletionCommand
+from pip.commands.download import DownloadCommand
+from pip.commands.freeze import FreezeCommand
+from pip.commands.hash import HashCommand
+from pip.commands.help import HelpCommand
+from pip.commands.list import ListCommand
+from pip.commands.check import CheckCommand
+from pip.commands.search import SearchCommand
+from pip.commands.show import ShowCommand
+from pip.commands.install import InstallCommand
+from pip.commands.uninstall import UninstallCommand
+from pip.commands.wheel import WheelCommand
+
+
+commands_dict = {
+    CompletionCommand.name: CompletionCommand,
+    FreezeCommand.name: FreezeCommand,
+    HashCommand.name: HashCommand,
+    HelpCommand.name: HelpCommand,
+    SearchCommand.name: SearchCommand,
+    ShowCommand.name: ShowCommand,
+    InstallCommand.name: InstallCommand,
+    UninstallCommand.name: UninstallCommand,
+    DownloadCommand.name: DownloadCommand,
+    ListCommand.name: ListCommand,
+    CheckCommand.name: CheckCommand,
+    WheelCommand.name: WheelCommand,
+}
+
+
+commands_order = [
+    InstallCommand,
+    DownloadCommand,
+    UninstallCommand,
+    FreezeCommand,
+    ListCommand,
+    ShowCommand,
+    CheckCommand,
+    SearchCommand,
+    WheelCommand,
+    HashCommand,
+    CompletionCommand,
+    HelpCommand,
+]
+
+
+def get_summaries(ordered=True):
+    """Yields sorted (command name, command summary) tuples."""
+
+    if ordered:
+        cmditems = _sort_commands(commands_dict, commands_order)
+    else:
+        cmditems = commands_dict.items()
+
+    for name, command_class in cmditems:
+        yield (name, command_class.summary)
+
+
+def get_similar_commands(name):
+    """Command name auto-correct."""
+    from difflib import get_close_matches
+
+    name = name.lower()
+
+    close_commands = get_close_matches(name, commands_dict.keys())
+
+    if close_commands:
+        return close_commands[0]
+    else:
+        return False
+
+
+def _sort_commands(cmddict, order):
+    def keyfn(key):
+        try:
+            return order.index(key[1])
+        except ValueError:
+            # unordered items should come last
+            return 0xff
+
+    return sorted(cmddict.items(), key=keyfn)
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diff --git a/venv/lib/python3.5/site-packages/pip/commands/check.py b/venv/lib/python3.5/site-packages/pip/commands/check.py
new file mode 100644
index 0000000..70458ad
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/check.py
@@ -0,0 +1,39 @@
+import logging
+
+from pip.basecommand import Command
+from pip.operations.check import check_requirements
+from pip.utils import get_installed_distributions
+
+
+logger = logging.getLogger(__name__)
+
+
+class CheckCommand(Command):
+    """Verify installed packages have compatible dependencies."""
+    name = 'check'
+    usage = """
+      %prog [options]"""
+    summary = 'Verify installed packages have compatible dependencies.'
+
+    def run(self, options, args):
+        dists = get_installed_distributions(local_only=False, skip=())
+        missing_reqs_dict, incompatible_reqs_dict = check_requirements(dists)
+
+        for dist in dists:
+            key = '%s==%s' % (dist.project_name, dist.version)
+
+            for requirement in missing_reqs_dict.get(key, []):
+                logger.info(
+                    "%s %s requires %s, which is not installed.",
+                    dist.project_name, dist.version, requirement.project_name)
+
+            for requirement, actual in incompatible_reqs_dict.get(key, []):
+                logger.info(
+                    "%s %s has requirement %s, but you have %s %s.",
+                    dist.project_name, dist.version, requirement,
+                    actual.project_name, actual.version)
+
+        if missing_reqs_dict or incompatible_reqs_dict:
+            return 1
+        else:
+            logger.info("No broken requirements found.")
diff --git a/venv/lib/python3.5/site-packages/pip/commands/completion.py b/venv/lib/python3.5/site-packages/pip/commands/completion.py
new file mode 100644
index 0000000..66e41a6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/completion.py
@@ -0,0 +1,81 @@
+from __future__ import absolute_import
+
+import sys
+from pip.basecommand import Command
+
+BASE_COMPLETION = """
+# pip %(shell)s completion start%(script)s# pip %(shell)s completion end
+"""
+
+COMPLETION_SCRIPTS = {
+    'bash': """
+_pip_completion()
+{
+    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \\
+                   COMP_CWORD=$COMP_CWORD \\
+                   PIP_AUTO_COMPLETE=1 $1 ) )
+}
+complete -o default -F _pip_completion pip
+""", 'zsh': """
+function _pip_completion {
+  local words cword
+  read -Ac words
+  read -cn cword
+  reply=( $( COMP_WORDS="$words[*]" \\
+             COMP_CWORD=$(( cword-1 )) \\
+             PIP_AUTO_COMPLETE=1 $words[1] ) )
+}
+compctl -K _pip_completion pip
+""", 'fish': """
+function __fish_complete_pip
+    set -lx COMP_WORDS (commandline -o) ""
+    set -lx COMP_CWORD (math (contains -i -- (commandline -t) $COMP_WORDS)-1)
+    set -lx PIP_AUTO_COMPLETE 1
+    string split \  -- (eval $COMP_WORDS[1])
+end
+complete -fa "(__fish_complete_pip)" -c pip
+"""}
+
+
+class CompletionCommand(Command):
+    """A helper command to be used for command completion."""
+    name = 'completion'
+    summary = 'A helper command used for command completion.'
+
+    def __init__(self, *args, **kw):
+        super(CompletionCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '--bash', '-b',
+            action='store_const',
+            const='bash',
+            dest='shell',
+            help='Emit completion code for bash')
+        cmd_opts.add_option(
+            '--zsh', '-z',
+            action='store_const',
+            const='zsh',
+            dest='shell',
+            help='Emit completion code for zsh')
+        cmd_opts.add_option(
+            '--fish', '-f',
+            action='store_const',
+            const='fish',
+            dest='shell',
+            help='Emit completion code for fish')
+
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        """Prints the completion code of the given shell"""
+        shells = COMPLETION_SCRIPTS.keys()
+        shell_options = ['--' + shell for shell in sorted(shells)]
+        if options.shell in shells:
+            script = COMPLETION_SCRIPTS.get(options.shell, '')
+            print(BASE_COMPLETION % {'script': script, 'shell': options.shell})
+        else:
+            sys.stderr.write(
+                'ERROR: You must pass %s\n' % ' or '.join(shell_options)
+            )
diff --git a/venv/lib/python3.5/site-packages/pip/commands/download.py b/venv/lib/python3.5/site-packages/pip/commands/download.py
new file mode 100644
index 0000000..4bc0640
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/download.py
@@ -0,0 +1,212 @@
+from __future__ import absolute_import
+
+import logging
+import os
+
+from pip.exceptions import CommandError
+from pip.index import FormatControl
+from pip.req import RequirementSet
+from pip.basecommand import RequirementCommand
+from pip import cmdoptions
+from pip.utils import ensure_dir, normalize_path
+from pip.utils.build import BuildDirectory
+from pip.utils.filesystem import check_path_owner
+
+
+logger = logging.getLogger(__name__)
+
+
+class DownloadCommand(RequirementCommand):
+    """
+    Download packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports downloading from "requirements files", which provide
+    an easy way to specify a whole environment to be downloaded.
+    """
+    name = 'download'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Download packages.'
+
+    def __init__(self, *args, **kw):
+        super(DownloadCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.build_dir())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.global_options())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.pre())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        cmd_opts.add_option(
+            '-d', '--dest', '--destination-dir', '--destination-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Download packages into <dir>."),
+        )
+
+        cmd_opts.add_option(
+            '--platform',
+            dest='platform',
+            metavar='platform',
+            default=None,
+            help=("Only download wheels compatible with <platform>. "
+                  "Defaults to the platform of the running system."),
+        )
+
+        cmd_opts.add_option(
+            '--python-version',
+            dest='python_version',
+            metavar='python_version',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "interpreter version <version>. If not specified, then the "
+                  "current system interpreter minor version is used. A major "
+                  "version (e.g. '2') can be specified to match all "
+                  "minor revs of that major version.  A minor version "
+                  "(e.g. '34') can also be specified."),
+        )
+
+        cmd_opts.add_option(
+            '--implementation',
+            dest='implementation',
+            metavar='implementation',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "implementation <implementation>, e.g. 'pp', 'jy', 'cp', "
+                  " or 'ip'. If not specified, then the current "
+                  "interpreter implementation is used.  Use 'py' to force "
+                  "implementation-agnostic wheels."),
+        )
+
+        cmd_opts.add_option(
+            '--abi',
+            dest='abi',
+            metavar='abi',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "abi <abi>, e.g. 'pypy_41'.  If not specified, then the "
+                  "current interpreter abi tag is used.  Generally "
+                  "you will need to specify --implementation, "
+                  "--platform, and --python-version when using "
+                  "this option."),
+        )
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.non_deprecated_index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        options.ignore_installed = True
+
+        if options.python_version:
+            python_versions = [options.python_version]
+        else:
+            python_versions = None
+
+        dist_restriction_set = any([
+            options.python_version,
+            options.platform,
+            options.abi,
+            options.implementation,
+        ])
+        binary_only = FormatControl(set(), set([':all:']))
+        if dist_restriction_set and options.format_control != binary_only:
+            raise CommandError(
+                "--only-binary=:all: must be set and --no-binary must not "
+                "be set (or must be set to :none:) when restricting platform "
+                "and interpreter constraints using --python-version, "
+                "--platform, --abi, or --implementation."
+            )
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        options.download_dir = normalize_path(options.download_dir)
+
+        ensure_dir(options.download_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(
+                options=options,
+                session=session,
+                platform=options.platform,
+                python_versions=python_versions,
+                abi=options.abi,
+                implementation=options.implementation,
+            )
+            build_delete = (not (options.no_clean or options.build_dir))
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    ignore_installed=True,
+                    ignore_dependencies=options.ignore_dependencies,
+                    session=session,
+                    isolated=options.isolated_mode,
+                    require_hashes=options.require_hashes
+                )
+                self.populate_requirement_set(
+                    requirement_set,
+                    args,
+                    options,
+                    finder,
+                    session,
+                    self.name,
+                    None
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                requirement_set.prepare_files(finder)
+
+                downloaded = ' '.join([
+                    req.name for req in requirement_set.successfully_downloaded
+                ])
+                if downloaded:
+                    logger.info(
+                        'Successfully downloaded %s', downloaded
+                    )
+
+                # Clean up
+                if not options.no_clean:
+                    requirement_set.cleanup_files()
+
+        return requirement_set
diff --git a/venv/lib/python3.5/site-packages/pip/commands/freeze.py b/venv/lib/python3.5/site-packages/pip/commands/freeze.py
new file mode 100644
index 0000000..c198796
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/freeze.py
@@ -0,0 +1,87 @@
+from __future__ import absolute_import
+
+import sys
+
+import pip
+from pip.compat import stdlib_pkgs
+from pip.basecommand import Command
+from pip.operations.freeze import freeze
+from pip.wheel import WheelCache
+
+
+DEV_PKGS = ('pip', 'setuptools', 'distribute', 'wheel')
+
+
+class FreezeCommand(Command):
+    """
+    Output installed packages in requirements format.
+
+    packages are listed in a case-insensitive sorted order.
+    """
+    name = 'freeze'
+    usage = """
+      %prog [options]"""
+    summary = 'Output installed packages in requirements format.'
+    log_streams = ("ext://sys.stderr", "ext://sys.stderr")
+
+    def __init__(self, *args, **kw):
+        super(FreezeCommand, self).__init__(*args, **kw)
+
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help="Use the order in the given requirements file and its "
+                 "comments when generating output. This option can be "
+                 "used multiple times.")
+        self.cmd_opts.add_option(
+            '-f', '--find-links',
+            dest='find_links',
+            action='append',
+            default=[],
+            metavar='URL',
+            help='URL for finding packages, which will be added to the '
+                 'output.')
+        self.cmd_opts.add_option(
+            '-l', '--local',
+            dest='local',
+            action='store_true',
+            default=False,
+            help='If in a virtualenv that has global access, do not output '
+                 'globally-installed packages.')
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+        self.cmd_opts.add_option(
+            '--all',
+            dest='freeze_all',
+            action='store_true',
+            help='Do not skip these packages in the output:'
+                 ' %s' % ', '.join(DEV_PKGS))
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        format_control = pip.index.FormatControl(set(), set())
+        wheel_cache = WheelCache(options.cache_dir, format_control)
+        skip = set(stdlib_pkgs)
+        if not options.freeze_all:
+            skip.update(DEV_PKGS)
+
+        freeze_kwargs = dict(
+            requirement=options.requirements,
+            find_links=options.find_links,
+            local_only=options.local,
+            user_only=options.user,
+            skip_regex=options.skip_requirements_regex,
+            isolated=options.isolated_mode,
+            wheel_cache=wheel_cache,
+            skip=skip)
+
+        for line in freeze(**freeze_kwargs):
+            sys.stdout.write(line + '\n')
diff --git a/venv/lib/python3.5/site-packages/pip/commands/hash.py b/venv/lib/python3.5/site-packages/pip/commands/hash.py
new file mode 100644
index 0000000..27cca0b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/hash.py
@@ -0,0 +1,57 @@
+from __future__ import absolute_import
+
+import hashlib
+import logging
+import sys
+
+from pip.basecommand import Command
+from pip.status_codes import ERROR
+from pip.utils import read_chunks
+from pip.utils.hashes import FAVORITE_HASH, STRONG_HASHES
+
+
+logger = logging.getLogger(__name__)
+
+
+class HashCommand(Command):
+    """
+    Compute a hash of a local package archive.
+
+    These can be used with --hash in a requirements file to do repeatable
+    installs.
+
+    """
+    name = 'hash'
+    usage = '%prog [options] <file> ...'
+    summary = 'Compute hashes of package archives.'
+
+    def __init__(self, *args, **kw):
+        super(HashCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-a', '--algorithm',
+            dest='algorithm',
+            choices=STRONG_HASHES,
+            action='store',
+            default=FAVORITE_HASH,
+            help='The hash algorithm to use: one of %s' %
+                 ', '.join(STRONG_HASHES))
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            self.parser.print_usage(sys.stderr)
+            return ERROR
+
+        algorithm = options.algorithm
+        for path in args:
+            logger.info('%s:\n--hash=%s:%s',
+                        path, algorithm, _hash_of_file(path, algorithm))
+
+
+def _hash_of_file(path, algorithm):
+    """Return the hash digest of a file."""
+    with open(path, 'rb') as archive:
+        hash = hashlib.new(algorithm)
+        for chunk in read_chunks(archive):
+            hash.update(chunk)
+    return hash.hexdigest()
diff --git a/venv/lib/python3.5/site-packages/pip/commands/help.py b/venv/lib/python3.5/site-packages/pip/commands/help.py
new file mode 100644
index 0000000..11722f1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/help.py
@@ -0,0 +1,35 @@
+from __future__ import absolute_import
+
+from pip.basecommand import Command, SUCCESS
+from pip.exceptions import CommandError
+
+
+class HelpCommand(Command):
+    """Show help for commands"""
+    name = 'help'
+    usage = """
+      %prog <command>"""
+    summary = 'Show help for commands.'
+
+    def run(self, options, args):
+        from pip.commands import commands_dict, get_similar_commands
+
+        try:
+            # 'pip help' with no args is handled by pip.__init__.parseopt()
+            cmd_name = args[0]  # the command we need help for
+        except IndexError:
+            return SUCCESS
+
+        if cmd_name not in commands_dict:
+            guess = get_similar_commands(cmd_name)
+
+            msg = ['unknown command "%s"' % cmd_name]
+            if guess:
+                msg.append('maybe you meant "%s"' % guess)
+
+            raise CommandError(' - '.join(msg))
+
+        command = commands_dict[cmd_name]()
+        command.parser.print_help()
+
+        return SUCCESS
diff --git a/venv/lib/python3.5/site-packages/pip/commands/install.py b/venv/lib/python3.5/site-packages/pip/commands/install.py
new file mode 100644
index 0000000..227c526
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/install.py
@@ -0,0 +1,437 @@
+from __future__ import absolute_import
+
+import logging
+import operator
+import os
+import tempfile
+import shutil
+import warnings
+try:
+    import wheel
+except ImportError:
+    wheel = None
+
+from pip.req import RequirementSet
+from pip.basecommand import RequirementCommand
+from pip.locations import virtualenv_no_global, distutils_scheme
+from pip.exceptions import (
+    InstallationError, CommandError, PreviousBuildDirError,
+)
+from pip import cmdoptions
+from pip.utils import ensure_dir, get_installed_version
+from pip.utils.build import BuildDirectory
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.filesystem import check_path_owner
+from pip.wheel import WheelCache, WheelBuilder
+
+
+logger = logging.getLogger(__name__)
+
+
+class InstallCommand(RequirementCommand):
+    """
+    Install packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports installing from "requirements files", which provide
+    an easy way to specify a whole environment to be installed.
+    """
+    name = 'install'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Install packages.'
+
+    def __init__(self, *args, **kw):
+        super(InstallCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.build_dir())
+
+        cmd_opts.add_option(
+            '-t', '--target',
+            dest='target_dir',
+            metavar='dir',
+            default=None,
+            help='Install packages into <dir>. '
+                 'By default this will not replace existing files/folders in '
+                 '<dir>. Use --upgrade to replace existing packages in <dir> '
+                 'with new versions.'
+        )
+
+        cmd_opts.add_option(
+            '-d', '--download', '--download-dir', '--download-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=None,
+            help=("Download packages into <dir> instead of installing them, "
+                  "regardless of what's already installed."),
+        )
+
+        cmd_opts.add_option(cmdoptions.src())
+
+        cmd_opts.add_option(
+            '-U', '--upgrade',
+            dest='upgrade',
+            action='store_true',
+            help='Upgrade all specified packages to the newest available '
+                 'version. The handling of dependencies depends on the '
+                 'upgrade-strategy used.'
+        )
+
+        cmd_opts.add_option(
+            '--upgrade-strategy',
+            dest='upgrade_strategy',
+            default='eager',
+            choices=['only-if-needed', 'eager'],
+            help='Determines how dependency upgrading should be handled. '
+                 '"eager" - dependencies are upgraded regardless of '
+                 'whether the currently installed version satisfies the '
+                 'requirements of the upgraded package(s). '
+                 '"only-if-needed" -  are upgraded only when they do not '
+                 'satisfy the requirements of the upgraded package(s).'
+        )
+
+        cmd_opts.add_option(
+            '--force-reinstall',
+            dest='force_reinstall',
+            action='store_true',
+            help='When upgrading, reinstall all packages even if they are '
+                 'already up-to-date.')
+
+        cmd_opts.add_option(
+            '-I', '--ignore-installed',
+            dest='ignore_installed',
+            action='store_true',
+            help='Ignore the installed packages (reinstalling instead).')
+
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_deps())
+
+        cmd_opts.add_option(cmdoptions.install_options())
+        cmd_opts.add_option(cmdoptions.global_options())
+
+        cmd_opts.add_option(
+            '--user',
+            dest='use_user_site',
+            action='store_true',
+            help="Install to the Python user install directory for your "
+                 "platform. Typically ~/.local/, or %APPDATA%\Python on "
+                 "Windows. (See the Python documentation for site.USER_BASE "
+                 "for full details.)")
+
+        cmd_opts.add_option(
+            '--egg',
+            dest='as_egg',
+            action='store_true',
+            help="Install packages as eggs, not 'flat', like pip normally "
+                 "does. This option is not about installing *from* eggs. "
+                 "(WARNING: Because this option overrides pip's normal install"
+                 " logic, requirements files may not behave as expected.)")
+
+        cmd_opts.add_option(
+            '--root',
+            dest='root_path',
+            metavar='dir',
+            default=None,
+            help="Install everything relative to this alternate root "
+                 "directory.")
+
+        cmd_opts.add_option(
+            '--prefix',
+            dest='prefix_path',
+            metavar='dir',
+            default=None,
+            help="Installation prefix where lib, bin and other top-level "
+                 "folders are placed")
+
+        cmd_opts.add_option(
+            "--compile",
+            action="store_true",
+            dest="compile",
+            default=True,
+            help="Compile py files to pyc",
+        )
+
+        cmd_opts.add_option(
+            "--no-compile",
+            action="store_false",
+            dest="compile",
+            help="Do not compile py files to pyc",
+        )
+
+        cmd_opts.add_option(cmdoptions.use_wheel())
+        cmd_opts.add_option(cmdoptions.no_use_wheel())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.pre())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        cmdoptions.resolve_wheel_no_use_binary(options)
+        cmdoptions.check_install_build_global(options)
+
+        if options.as_egg:
+            warnings.warn(
+                "--egg has been deprecated and will be removed in the future. "
+                "This flag is mutually exclusive with large parts of pip, and "
+                "actually using it invalidates pip's ability to manage the "
+                "installation process.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.download_dir:
+            warnings.warn(
+                "pip install --download has been deprecated and will be "
+                "removed in the future. Pip now has a download command that "
+                "should be used instead.",
+                RemovedInPip10Warning,
+            )
+            options.ignore_installed = True
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        install_options = options.install_options or []
+        if options.use_user_site:
+            if options.prefix_path:
+                raise CommandError(
+                    "Can not combine '--user' and '--prefix' as they imply "
+                    "different installation locations"
+                )
+            if virtualenv_no_global():
+                raise InstallationError(
+                    "Can not perform a '--user' install. User site-packages "
+                    "are not visible in this virtualenv."
+                )
+            install_options.append('--user')
+            install_options.append('--prefix=')
+
+        temp_target_dir = None
+        if options.target_dir:
+            options.ignore_installed = True
+            temp_target_dir = tempfile.mkdtemp()
+            options.target_dir = os.path.abspath(options.target_dir)
+            if (os.path.exists(options.target_dir) and not
+                    os.path.isdir(options.target_dir)):
+                raise CommandError(
+                    "Target path exists but is not a directory, will not "
+                    "continue."
+                )
+            install_options.append('--home=' + temp_target_dir)
+
+        global_options = options.global_options or []
+
+        with self._build_session(options) as session:
+
+            finder = self._build_package_finder(options, session)
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    upgrade=options.upgrade,
+                    upgrade_strategy=options.upgrade_strategy,
+                    as_egg=options.as_egg,
+                    ignore_installed=options.ignore_installed,
+                    ignore_dependencies=options.ignore_dependencies,
+                    ignore_requires_python=options.ignore_requires_python,
+                    force_reinstall=options.force_reinstall,
+                    use_user_site=options.use_user_site,
+                    target_dir=temp_target_dir,
+                    session=session,
+                    pycompile=options.compile,
+                    isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache,
+                    require_hashes=options.require_hashes,
+                )
+
+                self.populate_requirement_set(
+                    requirement_set, args, options, finder, session, self.name,
+                    wheel_cache
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                try:
+                    if (options.download_dir or not wheel or not
+                            options.cache_dir):
+                        # on -d don't do complex things like building
+                        # wheels, and don't try to build wheels when wheel is
+                        # not installed.
+                        requirement_set.prepare_files(finder)
+                    else:
+                        # build wheels before install.
+                        wb = WheelBuilder(
+                            requirement_set,
+                            finder,
+                            build_options=[],
+                            global_options=[],
+                        )
+                        # Ignore the result: a failed wheel will be
+                        # installed from the sdist/vcs whatever.
+                        wb.build(autobuilding=True)
+
+                    if not options.download_dir:
+                        requirement_set.install(
+                            install_options,
+                            global_options,
+                            root=options.root_path,
+                            prefix=options.prefix_path,
+                        )
+
+                        possible_lib_locations = get_lib_location_guesses(
+                            user=options.use_user_site,
+                            home=temp_target_dir,
+                            root=options.root_path,
+                            prefix=options.prefix_path,
+                            isolated=options.isolated_mode,
+                        )
+                        reqs = sorted(
+                            requirement_set.successfully_installed,
+                            key=operator.attrgetter('name'))
+                        items = []
+                        for req in reqs:
+                            item = req.name
+                            try:
+                                installed_version = get_installed_version(
+                                    req.name, possible_lib_locations
+                                )
+                                if installed_version:
+                                    item += '-' + installed_version
+                            except Exception:
+                                pass
+                            items.append(item)
+                        installed = ' '.join(items)
+                        if installed:
+                            logger.info('Successfully installed %s', installed)
+                    else:
+                        downloaded = ' '.join([
+                            req.name
+                            for req in requirement_set.successfully_downloaded
+                        ])
+                        if downloaded:
+                            logger.info(
+                                'Successfully downloaded %s', downloaded
+                            )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    # Clean up
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
+
+        if options.target_dir:
+            ensure_dir(options.target_dir)
+
+            # Checking both purelib and platlib directories for installed
+            # packages to be moved to target directory
+            lib_dir_list = []
+
+            purelib_dir = distutils_scheme('', home=temp_target_dir)['purelib']
+            platlib_dir = distutils_scheme('', home=temp_target_dir)['platlib']
+
+            if os.path.exists(purelib_dir):
+                lib_dir_list.append(purelib_dir)
+            if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
+                lib_dir_list.append(platlib_dir)
+
+            for lib_dir in lib_dir_list:
+                for item in os.listdir(lib_dir):
+                    target_item_dir = os.path.join(options.target_dir, item)
+                    if os.path.exists(target_item_dir):
+                        if not options.upgrade:
+                            logger.warning(
+                                'Target directory %s already exists. Specify '
+                                '--upgrade to force replacement.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.islink(target_item_dir):
+                            logger.warning(
+                                'Target directory %s already exists and is '
+                                'a link. Pip will not automatically replace '
+                                'links, please remove if replacement is '
+                                'desired.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.isdir(target_item_dir):
+                            shutil.rmtree(target_item_dir)
+                        else:
+                            os.remove(target_item_dir)
+
+                    shutil.move(
+                        os.path.join(lib_dir, item),
+                        target_item_dir
+                    )
+            shutil.rmtree(temp_target_dir)
+        return requirement_set
+
+
+def get_lib_location_guesses(*args, **kwargs):
+    scheme = distutils_scheme('', *args, **kwargs)
+    return [scheme['purelib'], scheme['platlib']]
diff --git a/venv/lib/python3.5/site-packages/pip/commands/list.py b/venv/lib/python3.5/site-packages/pip/commands/list.py
new file mode 100644
index 0000000..6f6995d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/list.py
@@ -0,0 +1,337 @@
+from __future__ import absolute_import
+
+import json
+import logging
+import warnings
+try:
+    from itertools import zip_longest
+except ImportError:
+    from itertools import izip_longest as zip_longest
+
+from pip._vendor import six
+
+from pip.basecommand import Command
+from pip.exceptions import CommandError
+from pip.index import PackageFinder
+from pip.utils import (
+    get_installed_distributions, dist_is_editable)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.cmdoptions import make_option_group, index_group
+
+logger = logging.getLogger(__name__)
+
+
+class ListCommand(Command):
+    """
+    List installed packages, including editables.
+
+    Packages are listed in a case-insensitive sorted order.
+    """
+    name = 'list'
+    usage = """
+      %prog [options]"""
+    summary = 'List installed packages.'
+
+    def __init__(self, *args, **kw):
+        super(ListCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-o', '--outdated',
+            action='store_true',
+            default=False,
+            help='List outdated packages')
+        cmd_opts.add_option(
+            '-u', '--uptodate',
+            action='store_true',
+            default=False,
+            help='List uptodate packages')
+        cmd_opts.add_option(
+            '-e', '--editable',
+            action='store_true',
+            default=False,
+            help='List editable projects.')
+        cmd_opts.add_option(
+            '-l', '--local',
+            action='store_true',
+            default=False,
+            help=('If in a virtualenv that has global access, do not list '
+                  'globally-installed packages.'),
+        )
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(
+            '--format',
+            action='store',
+            dest='list_format',
+            choices=('legacy', 'columns', 'freeze', 'json'),
+            help="Select the output format among: legacy (default), columns, "
+                 "freeze or json.",
+        )
+
+        cmd_opts.add_option(
+            '--not-required',
+            action='store_true',
+            dest='not_required',
+            help="List packages that are not dependencies of "
+                 "installed packages.",
+        )
+
+        index_opts = make_option_group(index_group, self.parser)
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def _build_package_finder(self, options, index_urls, session):
+        """
+        Create a package finder appropriate to this list command.
+        """
+        return PackageFinder(
+            find_links=options.find_links,
+            index_urls=index_urls,
+            allow_all_prereleases=options.pre,
+            trusted_hosts=options.trusted_hosts,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+        )
+
+    def run(self, options, args):
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.list_format is None:
+            warnings.warn(
+                "The default format will switch to columns in the future. "
+                "You can use --format=(legacy|columns) (or define a "
+                "format=(legacy|columns) in your pip.conf under the [list] "
+                "section) to disable this warning.",
+                RemovedInPip10Warning,
+            )
+
+        if options.outdated and options.uptodate:
+            raise CommandError(
+                "Options --outdated and --uptodate cannot be combined.")
+
+        packages = get_installed_distributions(
+            local_only=options.local,
+            user_only=options.user,
+            editables_only=options.editable,
+        )
+
+        if options.outdated:
+            packages = self.get_outdated(packages, options)
+        elif options.uptodate:
+            packages = self.get_uptodate(packages, options)
+
+        if options.not_required:
+            packages = self.get_not_required(packages, options)
+
+        self.output_package_listing(packages, options)
+
+    def get_outdated(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version > dist.parsed_version
+        ]
+
+    def get_uptodate(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version == dist.parsed_version
+        ]
+
+    def get_not_required(self, packages, options):
+        dep_keys = set()
+        for dist in packages:
+            dep_keys.update(requirement.key for requirement in dist.requires())
+        return set(pkg for pkg in packages if pkg.key not in dep_keys)
+
+    def iter_packages_latest_infos(self, packages, options):
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        dependency_links = []
+        for dist in packages:
+            if dist.has_metadata('dependency_links.txt'):
+                dependency_links.extend(
+                    dist.get_metadata_lines('dependency_links.txt'),
+                )
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, index_urls, session)
+            finder.add_dependency_links(dependency_links)
+
+            for dist in packages:
+                typ = 'unknown'
+                all_candidates = finder.find_all_candidates(dist.key)
+                if not options.pre:
+                    # Remove prereleases
+                    all_candidates = [candidate for candidate in all_candidates
+                                      if not candidate.version.is_prerelease]
+
+                if not all_candidates:
+                    continue
+                best_candidate = max(all_candidates,
+                                     key=finder._candidate_sort_key)
+                remote_version = best_candidate.version
+                if best_candidate.location.is_wheel:
+                    typ = 'wheel'
+                else:
+                    typ = 'sdist'
+                # This is dirty but makes the rest of the code much cleaner
+                dist.latest_version = remote_version
+                dist.latest_filetype = typ
+                yield dist
+
+    def output_legacy(self, dist):
+        if dist_is_editable(dist):
+            return '%s (%s, %s)' % (
+                dist.project_name,
+                dist.version,
+                dist.location,
+            )
+        else:
+            return '%s (%s)' % (dist.project_name, dist.version)
+
+    def output_legacy_latest(self, dist):
+        return '%s - Latest: %s [%s]' % (
+            self.output_legacy(dist),
+            dist.latest_version,
+            dist.latest_filetype,
+        )
+
+    def output_package_listing(self, packages, options):
+        packages = sorted(
+            packages,
+            key=lambda dist: dist.project_name.lower(),
+        )
+        if options.list_format == 'columns' and packages:
+            data, header = format_for_columns(packages, options)
+            self.output_package_listing_columns(data, header)
+        elif options.list_format == 'freeze':
+            for dist in packages:
+                logger.info("%s==%s", dist.project_name, dist.version)
+        elif options.list_format == 'json':
+            logger.info(format_for_json(packages, options))
+        else:  # legacy
+            for dist in packages:
+                if options.outdated:
+                    logger.info(self.output_legacy_latest(dist))
+                else:
+                    logger.info(self.output_legacy(dist))
+
+    def output_package_listing_columns(self, data, header):
+        # insert the header first: we need to know the size of column names
+        if len(data) > 0:
+            data.insert(0, header)
+
+        pkg_strings, sizes = tabulate(data)
+
+        # Create and add a separator.
+        if len(data) > 0:
+            pkg_strings.insert(1, " ".join(map(lambda x: '-' * x, sizes)))
+
+        for val in pkg_strings:
+            logger.info(val)
+
+
+def tabulate(vals):
+    # From pfmoore on GitHub:
+    # https://github.com/pypa/pip/issues/3651#issuecomment-216932564
+    assert len(vals) > 0
+
+    sizes = [0] * max(len(x) for x in vals)
+    for row in vals:
+        sizes = [max(s, len(str(c))) for s, c in zip_longest(sizes, row)]
+
+    result = []
+    for row in vals:
+        display = " ".join([str(c).ljust(s) if c is not None else ''
+                            for s, c in zip_longest(sizes, row)])
+        result.append(display)
+
+    return result, sizes
+
+
+def format_for_columns(pkgs, options):
+    """
+    Convert the package data into something usable
+    by output_package_listing_columns.
+    """
+    running_outdated = options.outdated
+    # Adjust the header for the `pip list --outdated` case.
+    if running_outdated:
+        header = ["Package", "Version", "Latest", "Type"]
+    else:
+        header = ["Package", "Version"]
+
+    data = []
+    if any(dist_is_editable(x) for x in pkgs):
+        header.append("Location")
+
+    for proj in pkgs:
+        # if we're working on the 'outdated' list, separate out the
+        # latest_version and type
+        row = [proj.project_name, proj.version]
+
+        if running_outdated:
+            row.append(proj.latest_version)
+            row.append(proj.latest_filetype)
+
+        if dist_is_editable(proj):
+            row.append(proj.location)
+
+        data.append(row)
+
+    return data, header
+
+
+def format_for_json(packages, options):
+    data = []
+    for dist in packages:
+        info = {
+            'name': dist.project_name,
+            'version': six.text_type(dist.version),
+        }
+        if options.outdated:
+            info['latest_version'] = six.text_type(dist.latest_version)
+            info['latest_filetype'] = dist.latest_filetype
+        data.append(info)
+    return json.dumps(data)
diff --git a/venv/lib/python3.5/site-packages/pip/commands/search.py b/venv/lib/python3.5/site-packages/pip/commands/search.py
new file mode 100644
index 0000000..bd2ea8a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/search.py
@@ -0,0 +1,133 @@
+from __future__ import absolute_import
+
+import logging
+import sys
+import textwrap
+
+from pip.basecommand import Command, SUCCESS
+from pip.compat import OrderedDict
+from pip.download import PipXmlrpcTransport
+from pip.models import PyPI
+from pip.utils import get_terminal_size
+from pip.utils.logging import indent_log
+from pip.exceptions import CommandError
+from pip.status_codes import NO_MATCHES_FOUND
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor import pkg_resources
+from pip._vendor.six.moves import xmlrpc_client
+
+
+logger = logging.getLogger(__name__)
+
+
+class SearchCommand(Command):
+    """Search for PyPI packages whose name or summary contains <query>."""
+    name = 'search'
+    usage = """
+      %prog [options] <query>"""
+    summary = 'Search PyPI for packages.'
+
+    def __init__(self, *args, **kw):
+        super(SearchCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-i', '--index',
+            dest='index',
+            metavar='URL',
+            default=PyPI.pypi_url,
+            help='Base URL of Python Package Index (default %default)')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            raise CommandError('Missing required argument (search query).')
+        query = args
+        pypi_hits = self.search(query, options)
+        hits = transform_hits(pypi_hits)
+
+        terminal_width = None
+        if sys.stdout.isatty():
+            terminal_width = get_terminal_size()[0]
+
+        print_results(hits, terminal_width=terminal_width)
+        if pypi_hits:
+            return SUCCESS
+        return NO_MATCHES_FOUND
+
+    def search(self, query, options):
+        index_url = options.index
+        with self._build_session(options) as session:
+            transport = PipXmlrpcTransport(index_url, session)
+            pypi = xmlrpc_client.ServerProxy(index_url, transport)
+            hits = pypi.search({'name': query, 'summary': query}, 'or')
+            return hits
+
+
+def transform_hits(hits):
+    """
+    The list from pypi is really a list of versions. We want a list of
+    packages with the list of versions stored inline. This converts the
+    list from pypi into one we can use.
+    """
+    packages = OrderedDict()
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary']
+        version = hit['version']
+
+        if name not in packages.keys():
+            packages[name] = {
+                'name': name,
+                'summary': summary,
+                'versions': [version],
+            }
+        else:
+            packages[name]['versions'].append(version)
+
+            # if this is the highest version, replace summary and score
+            if version == highest_version(packages[name]['versions']):
+                packages[name]['summary'] = summary
+
+    return list(packages.values())
+
+
+def print_results(hits, name_column_width=None, terminal_width=None):
+    if not hits:
+        return
+    if name_column_width is None:
+        name_column_width = max([
+            len(hit['name']) + len(hit.get('versions', ['-'])[-1])
+            for hit in hits
+        ]) + 4
+
+    installed_packages = [p.project_name for p in pkg_resources.working_set]
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary'] or ''
+        version = hit.get('versions', ['-'])[-1]
+        if terminal_width is not None:
+            target_width = terminal_width - name_column_width - 5
+            if target_width > 10:
+                # wrap and indent summary to fit terminal
+                summary = textwrap.wrap(summary, target_width)
+                summary = ('\n' + ' ' * (name_column_width + 3)).join(summary)
+
+        line = '%-*s - %s' % (name_column_width,
+                              '%s (%s)' % (name, version), summary)
+        try:
+            logger.info(line)
+            if name in installed_packages:
+                dist = pkg_resources.get_distribution(name)
+                with indent_log():
+                    latest = highest_version(hit['versions'])
+                    if dist.version == latest:
+                        logger.info('INSTALLED: %s (latest)', dist.version)
+                    else:
+                        logger.info('INSTALLED: %s', dist.version)
+                        logger.info('LATEST:    %s', latest)
+        except UnicodeEncodeError:
+            pass
+
+
+def highest_version(versions):
+    return max(versions, key=parse_version)
diff --git a/venv/lib/python3.5/site-packages/pip/commands/show.py b/venv/lib/python3.5/site-packages/pip/commands/show.py
new file mode 100644
index 0000000..111c16d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/show.py
@@ -0,0 +1,154 @@
+from __future__ import absolute_import
+
+from email.parser import FeedParser
+import logging
+import os
+
+from pip.basecommand import Command
+from pip.status_codes import SUCCESS, ERROR
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+
+
+logger = logging.getLogger(__name__)
+
+
+class ShowCommand(Command):
+    """Show information about one or more installed packages."""
+    name = 'show'
+    usage = """
+      %prog [options] <package> ..."""
+    summary = 'Show information about installed packages.'
+
+    def __init__(self, *args, **kw):
+        super(ShowCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-f', '--files',
+            dest='files',
+            action='store_true',
+            default=False,
+            help='Show the full list of installed files for each package.')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            logger.warning('ERROR: Please provide a package name or names.')
+            return ERROR
+        query = args
+
+        results = search_packages_info(query)
+        if not print_results(
+                results, list_files=options.files, verbose=options.verbose):
+            return ERROR
+        return SUCCESS
+
+
+def search_packages_info(query):
+    """
+    Gather details from installed distributions. Print distribution name,
+    version, location, and installed files. Installed files requires a
+    pip generated 'installed-files.txt' in the distributions '.egg-info'
+    directory.
+    """
+    installed = {}
+    for p in pkg_resources.working_set:
+        installed[canonicalize_name(p.project_name)] = p
+
+    query_names = [canonicalize_name(name) for name in query]
+
+    for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
+        package = {
+            'name': dist.project_name,
+            'version': dist.version,
+            'location': dist.location,
+            'requires': [dep.project_name for dep in dist.requires()],
+        }
+        file_list = None
+        metadata = None
+        if isinstance(dist, pkg_resources.DistInfoDistribution):
+            # RECORDs should be part of .dist-info metadatas
+            if dist.has_metadata('RECORD'):
+                lines = dist.get_metadata_lines('RECORD')
+                paths = [l.split(',')[0] for l in lines]
+                paths = [os.path.join(dist.location, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('METADATA'):
+                metadata = dist.get_metadata('METADATA')
+        else:
+            # Otherwise use pip's log for .egg-info's
+            if dist.has_metadata('installed-files.txt'):
+                paths = dist.get_metadata_lines('installed-files.txt')
+                paths = [os.path.join(dist.egg_info, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('PKG-INFO'):
+                metadata = dist.get_metadata('PKG-INFO')
+
+        if dist.has_metadata('entry_points.txt'):
+            entry_points = dist.get_metadata_lines('entry_points.txt')
+            package['entry_points'] = entry_points
+
+        if dist.has_metadata('INSTALLER'):
+            for line in dist.get_metadata_lines('INSTALLER'):
+                if line.strip():
+                    package['installer'] = line.strip()
+                    break
+
+        # @todo: Should pkg_resources.Distribution have a
+        # `get_pkg_info` method?
+        feed_parser = FeedParser()
+        feed_parser.feed(metadata)
+        pkg_info_dict = feed_parser.close()
+        for key in ('metadata-version', 'summary',
+                    'home-page', 'author', 'author-email', 'license'):
+            package[key] = pkg_info_dict.get(key)
+
+        # It looks like FeedParser cannot deal with repeated headers
+        classifiers = []
+        for line in metadata.splitlines():
+            if line.startswith('Classifier: '):
+                classifiers.append(line[len('Classifier: '):])
+        package['classifiers'] = classifiers
+
+        if file_list:
+            package['files'] = sorted(file_list)
+        yield package
+
+
+def print_results(distributions, list_files=False, verbose=False):
+    """
+    Print the informations from installed distributions found.
+    """
+    results_printed = False
+    for i, dist in enumerate(distributions):
+        results_printed = True
+        if i > 0:
+            logger.info("---")
+        logger.info("Name: %s", dist.get('name', ''))
+        logger.info("Version: %s", dist.get('version', ''))
+        logger.info("Summary: %s", dist.get('summary', ''))
+        logger.info("Home-page: %s", dist.get('home-page', ''))
+        logger.info("Author: %s", dist.get('author', ''))
+        logger.info("Author-email: %s", dist.get('author-email', ''))
+        logger.info("License: %s", dist.get('license', ''))
+        logger.info("Location: %s", dist.get('location', ''))
+        logger.info("Requires: %s", ', '.join(dist.get('requires', [])))
+        if verbose:
+            logger.info("Metadata-Version: %s",
+                        dist.get('metadata-version', ''))
+            logger.info("Installer: %s", dist.get('installer', ''))
+            logger.info("Classifiers:")
+            for classifier in dist.get('classifiers', []):
+                logger.info("  %s", classifier)
+            logger.info("Entry-points:")
+            for entry in dist.get('entry_points', []):
+                logger.info("  %s", entry.strip())
+        if list_files:
+            logger.info("Files:")
+            for line in dist.get('files', []):
+                logger.info("  %s", line.strip())
+            if "files" not in dist:
+                logger.info("Cannot locate installed-files.txt")
+    return results_printed
diff --git a/venv/lib/python3.5/site-packages/pip/commands/uninstall.py b/venv/lib/python3.5/site-packages/pip/commands/uninstall.py
new file mode 100644
index 0000000..8ba1a7c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/uninstall.py
@@ -0,0 +1,76 @@
+from __future__ import absolute_import
+
+import pip
+from pip.wheel import WheelCache
+from pip.req import InstallRequirement, RequirementSet, parse_requirements
+from pip.basecommand import Command
+from pip.exceptions import InstallationError
+
+
+class UninstallCommand(Command):
+    """
+    Uninstall packages.
+
+    pip is able to uninstall most installed packages. Known exceptions are:
+
+    - Pure distutils packages installed with ``python setup.py install``, which
+      leave behind no metadata to determine what files were installed.
+    - Script wrappers installed by ``python setup.py develop``.
+    """
+    name = 'uninstall'
+    usage = """
+      %prog [options] <package> ...
+      %prog [options] -r <requirements file> ..."""
+    summary = 'Uninstall packages.'
+
+    def __init__(self, *args, **kw):
+        super(UninstallCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help='Uninstall all the packages listed in the given requirements '
+                 'file.  This option can be used multiple times.',
+        )
+        self.cmd_opts.add_option(
+            '-y', '--yes',
+            dest='yes',
+            action='store_true',
+            help="Don't ask for confirmation of uninstall deletions.")
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        with self._build_session(options) as session:
+            format_control = pip.index.FormatControl(set(), set())
+            wheel_cache = WheelCache(options.cache_dir, format_control)
+            requirement_set = RequirementSet(
+                build_dir=None,
+                src_dir=None,
+                download_dir=None,
+                isolated=options.isolated_mode,
+                session=session,
+                wheel_cache=wheel_cache,
+            )
+            for name in args:
+                requirement_set.add_requirement(
+                    InstallRequirement.from_line(
+                        name, isolated=options.isolated_mode,
+                        wheel_cache=wheel_cache
+                    )
+                )
+            for filename in options.requirements:
+                for req in parse_requirements(
+                        filename,
+                        options=options,
+                        session=session,
+                        wheel_cache=wheel_cache):
+                    requirement_set.add_requirement(req)
+            if not requirement_set.has_requirements:
+                raise InstallationError(
+                    'You must give at least one requirement to %(name)s (see '
+                    '"pip help %(name)s")' % dict(name=self.name)
+                )
+            requirement_set.uninstall(auto_confirm=options.yes)
diff --git a/venv/lib/python3.5/site-packages/pip/commands/wheel.py b/venv/lib/python3.5/site-packages/pip/commands/wheel.py
new file mode 100644
index 0000000..70e95eb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/commands/wheel.py
@@ -0,0 +1,208 @@
+# -*- coding: utf-8 -*-
+from __future__ import absolute_import
+
+import logging
+import os
+import warnings
+
+from pip.basecommand import RequirementCommand
+from pip.exceptions import CommandError, PreviousBuildDirError
+from pip.req import RequirementSet
+from pip.utils import import_or_raise
+from pip.utils.build import BuildDirectory
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.wheel import WheelCache, WheelBuilder
+from pip import cmdoptions
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCommand(RequirementCommand):
+    """
+    Build Wheel archives for your requirements and dependencies.
+
+    Wheel is a built-package format, and offers the advantage of not
+    recompiling your software during every install. For more details, see the
+    wheel docs: https://wheel.readthedocs.io/en/latest/
+
+    Requirements: setuptools>=0.8, and wheel.
+
+    'pip wheel' uses the bdist_wheel setuptools extension from the wheel
+    package to build individual wheels.
+
+    """
+
+    name = 'wheel'
+    usage = """
+      %prog [options] <requirement specifier> ...
+      %prog [options] -r <requirements file> ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Build wheels from your requirements.'
+
+    def __init__(self, *args, **kw):
+        super(WheelCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-w', '--wheel-dir',
+            dest='wheel_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Build wheels into <dir>, where the default is the "
+                  "current working directory."),
+        )
+        cmd_opts.add_option(cmdoptions.use_wheel())
+        cmd_opts.add_option(cmdoptions.no_use_wheel())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(
+            '--build-option',
+            dest='build_options',
+            metavar='options',
+            action='append',
+            help="Extra arguments to be supplied to 'setup.py bdist_wheel'.")
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.build_dir())
+
+        cmd_opts.add_option(
+            '--global-option',
+            dest='global_options',
+            action='append',
+            metavar='options',
+            help="Extra global options to be supplied to the setup.py "
+            "call before the 'bdist_wheel' command.")
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def check_required_packages(self):
+        import_or_raise(
+            'wheel.bdist_wheel',
+            CommandError,
+            "'pip wheel' requires the 'wheel' package. To fix this, run: "
+            "pip install wheel"
+        )
+        pkg_resources = import_or_raise(
+            'pkg_resources',
+            CommandError,
+            "'pip wheel' requires setuptools >= 0.8 for dist-info support."
+            " To fix this, run: pip install --upgrade setuptools"
+        )
+        if not hasattr(pkg_resources, 'DistInfoDistribution'):
+            raise CommandError(
+                "'pip wheel' requires setuptools >= 0.8 for dist-info "
+                "support. To fix this, run: pip install --upgrade "
+                "setuptools"
+            )
+
+    def run(self, options, args):
+        self.check_required_packages()
+        cmdoptions.resolve_wheel_no_use_binary(options)
+        cmdoptions.check_install_build_global(options)
+
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, session)
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=None,
+                    ignore_dependencies=options.ignore_dependencies,
+                    ignore_installed=True,
+                    ignore_requires_python=options.ignore_requires_python,
+                    isolated=options.isolated_mode,
+                    session=session,
+                    wheel_cache=wheel_cache,
+                    wheel_download_dir=options.wheel_dir,
+                    require_hashes=options.require_hashes
+                )
+
+                self.populate_requirement_set(
+                    requirement_set, args, options, finder, session, self.name,
+                    wheel_cache
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                try:
+                    # build wheels
+                    wb = WheelBuilder(
+                        requirement_set,
+                        finder,
+                        build_options=options.build_options or [],
+                        global_options=options.global_options or [],
+                    )
+                    if not wb.build():
+                        raise CommandError(
+                            "Failed to build one or more wheels"
+                        )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
diff --git a/venv/lib/python3.5/site-packages/pip/compat/__init__.py b/venv/lib/python3.5/site-packages/pip/compat/__init__.py
new file mode 100644
index 0000000..099672c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/compat/__init__.py
@@ -0,0 +1,164 @@
+"""Stuff that differs in different Python versions and platform
+distributions."""
+from __future__ import absolute_import, division
+
+import os
+import sys
+
+from pip._vendor.six import text_type
+
+try:
+    from logging.config import dictConfig as logging_dictConfig
+except ImportError:
+    from pip.compat.dictconfig import dictConfig as logging_dictConfig
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from pip._vendor.ordereddict import OrderedDict
+
+try:
+    import ipaddress
+except ImportError:
+    try:
+        from pip._vendor import ipaddress
+    except ImportError:
+        import ipaddr as ipaddress
+        ipaddress.ip_address = ipaddress.IPAddress
+        ipaddress.ip_network = ipaddress.IPNetwork
+
+
+try:
+    import sysconfig
+
+    def get_stdlib():
+        paths = [
+            sysconfig.get_path("stdlib"),
+            sysconfig.get_path("platstdlib"),
+        ]
+        return set(filter(bool, paths))
+except ImportError:
+    from distutils import sysconfig
+
+    def get_stdlib():
+        paths = [
+            sysconfig.get_python_lib(standard_lib=True),
+            sysconfig.get_python_lib(standard_lib=True, plat_specific=True),
+        ]
+        return set(filter(bool, paths))
+
+
+__all__ = [
+    "logging_dictConfig", "ipaddress", "uses_pycache", "console_to_str",
+    "native_str", "get_path_uid", "stdlib_pkgs", "WINDOWS", "samefile",
+    "OrderedDict",
+]
+
+
+if sys.version_info >= (3, 4):
+    uses_pycache = True
+    from importlib.util import cache_from_source
+else:
+    import imp
+    uses_pycache = hasattr(imp, 'cache_from_source')
+    if uses_pycache:
+        cache_from_source = imp.cache_from_source
+    else:
+        cache_from_source = None
+
+
+if sys.version_info >= (3,):
+    def console_to_str(s):
+        try:
+            return s.decode(sys.__stdout__.encoding)
+        except UnicodeDecodeError:
+            return s.decode('utf_8')
+
+    def native_str(s, replace=False):
+        if isinstance(s, bytes):
+            return s.decode('utf-8', 'replace' if replace else 'strict')
+        return s
+
+else:
+    def console_to_str(s):
+        return s
+
+    def native_str(s, replace=False):
+        # Replace is ignored -- unicode to UTF-8 can't fail
+        if isinstance(s, text_type):
+            return s.encode('utf-8')
+        return s
+
+
+def total_seconds(td):
+    if hasattr(td, "total_seconds"):
+        return td.total_seconds()
+    else:
+        val = td.microseconds + (td.seconds + td.days * 24 * 3600) * 10 ** 6
+        return val / 10 ** 6
+
+
+def get_path_uid(path):
+    """
+    Return path's uid.
+
+    Does not follow symlinks:
+        https://github.com/pypa/pip/pull/935#discussion_r5307003
+
+    Placed this function in compat due to differences on AIX and
+    Jython, that should eventually go away.
+
+    :raises OSError: When path is a symlink or can't be read.
+    """
+    if hasattr(os, 'O_NOFOLLOW'):
+        fd = os.open(path, os.O_RDONLY | os.O_NOFOLLOW)
+        file_uid = os.fstat(fd).st_uid
+        os.close(fd)
+    else:  # AIX and Jython
+        # WARNING: time of check vulnerability, but best we can do w/o NOFOLLOW
+        if not os.path.islink(path):
+            # older versions of Jython don't have `os.fstat`
+            file_uid = os.stat(path).st_uid
+        else:
+            # raise OSError for parity with os.O_NOFOLLOW above
+            raise OSError(
+                "%s is a symlink; Will not return uid for symlinks" % path
+            )
+    return file_uid
+
+
+def expanduser(path):
+    """
+    Expand ~ and ~user constructions.
+
+    Includes a workaround for http://bugs.python.org/issue14768
+    """
+    expanded = os.path.expanduser(path)
+    if path.startswith('~/') and expanded.startswith('//'):
+        expanded = expanded[1:]
+    return expanded
+
+
+# packages in the stdlib that may have installation metadata, but should not be
+# considered 'installed'.  this theoretically could be determined based on
+# dist.location (py27:`sysconfig.get_paths()['stdlib']`,
+# py26:sysconfig.get_config_vars('LIBDEST')), but fear platform variation may
+# make this ineffective, so hard-coding
+stdlib_pkgs = ('python', 'wsgiref')
+if sys.version_info >= (2, 7):
+    stdlib_pkgs += ('argparse',)
+
+
+# windows detection, covers cpython and ironpython
+WINDOWS = (sys.platform.startswith("win") or
+           (sys.platform == 'cli' and os.name == 'nt'))
+
+
+def samefile(file1, file2):
+    """Provide an alternative for os.path.samefile on Windows/Python2"""
+    if hasattr(os.path, 'samefile'):
+        return os.path.samefile(file1, file2)
+    else:
+        path1 = os.path.normcase(os.path.abspath(file1))
+        path2 = os.path.normcase(os.path.abspath(file2))
+        return path1 == path2
diff --git a/venv/lib/python3.5/site-packages/pip/compat/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/compat/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pip/compat/__pycache__/dictconfig.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/compat/__pycache__/dictconfig.cpython-35.pyc
new file mode 100644
index 0000000..2ad1316
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pip/compat/__pycache__/dictconfig.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pip/compat/dictconfig.py b/venv/lib/python3.5/site-packages/pip/compat/dictconfig.py
new file mode 100644
index 0000000..ec684aa
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/compat/dictconfig.py
@@ -0,0 +1,565 @@
+# This is a copy of the Python logging.config.dictconfig module,
+# reproduced with permission. It is provided here for backwards
+# compatibility for Python versions prior to 2.7.
+#
+# Copyright 2009-2010 by Vinay Sajip. All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation, and that the name of Vinay Sajip
+# not be used in advertising or publicity pertaining to distribution
+# of the software without specific, written prior permission.
+# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+from __future__ import absolute_import
+
+import logging.handlers
+import re
+import sys
+import types
+
+from pip._vendor import six
+
+# flake8: noqa
+
+IDENTIFIER = re.compile('^[a-z_][a-z0-9_]*$', re.I)
+
+
+def valid_ident(s):
+    m = IDENTIFIER.match(s)
+    if not m:
+        raise ValueError('Not a valid Python identifier: %r' % s)
+    return True
+
+#
+# This function is defined in logging only in recent versions of Python
+#
+try:
+    from logging import _checkLevel
+except ImportError:
+    def _checkLevel(level):
+        if isinstance(level, int):
+            rv = level
+        elif str(level) == level:
+            if level not in logging._levelNames:
+                raise ValueError('Unknown level: %r' % level)
+            rv = logging._levelNames[level]
+        else:
+            raise TypeError('Level not an integer or a '
+                            'valid string: %r' % level)
+        return rv
+
+# The ConvertingXXX classes are wrappers around standard Python containers,
+# and they serve to convert any suitable values in the container. The
+# conversion converts base dicts, lists and tuples to their wrapped
+# equivalents, whereas strings which match a conversion format are converted
+# appropriately.
+#
+# Each wrapper should have a configurator attribute holding the actual
+# configurator to use for conversion.
+
+
+class ConvertingDict(dict):
+    """A converting dictionary wrapper."""
+
+    def __getitem__(self, key):
+        value = dict.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def get(self, key, default=None):
+        value = dict.get(self, key, default)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def pop(self, key, default=None):
+        value = dict.pop(self, key, default)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+
+class ConvertingList(list):
+    """A converting list wrapper."""
+    def __getitem__(self, key):
+        value = list.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def pop(self, idx=-1):
+        value = list.pop(self, idx)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+        return result
+
+
+class ConvertingTuple(tuple):
+    """A converting tuple wrapper."""
+    def __getitem__(self, key):
+        value = tuple.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+
+class BaseConfigurator(object):
+    """
+    The configurator base class which defines some useful defaults.
+    """
+
+    CONVERT_PATTERN = re.compile(r'^(?P<prefix>[a-z]+)://(?P<suffix>.*)$')
+
+    WORD_PATTERN = re.compile(r'^\s*(\w+)\s*')
+    DOT_PATTERN = re.compile(r'^\.\s*(\w+)\s*')
+    INDEX_PATTERN = re.compile(r'^\[\s*(\w+)\s*\]\s*')
+    DIGIT_PATTERN = re.compile(r'^\d+$')
+
+    value_converters = {
+        'ext' : 'ext_convert',
+        'cfg' : 'cfg_convert',
+    }
+
+    # We might want to use a different one, e.g. importlib
+    importer = __import__
+
+    def __init__(self, config):
+        self.config = ConvertingDict(config)
+        self.config.configurator = self
+
+    def resolve(self, s):
+        """
+        Resolve strings to objects using standard import and attribute
+        syntax.
+        """
+        name = s.split('.')
+        used = name.pop(0)
+        try:
+            found = self.importer(used)
+            for frag in name:
+                used += '.' + frag
+                try:
+                    found = getattr(found, frag)
+                except AttributeError:
+                    self.importer(used)
+                    found = getattr(found, frag)
+            return found
+        except ImportError:
+            e, tb = sys.exc_info()[1:]
+            v = ValueError('Cannot resolve %r: %s' % (s, e))
+            v.__cause__, v.__traceback__ = e, tb
+            raise v
+
+    def ext_convert(self, value):
+        """Default converter for the ext:// protocol."""
+        return self.resolve(value)
+
+    def cfg_convert(self, value):
+        """Default converter for the cfg:// protocol."""
+        rest = value
+        m = self.WORD_PATTERN.match(rest)
+        if m is None:
+            raise ValueError("Unable to convert %r" % value)
+        else:
+            rest = rest[m.end():]
+            d = self.config[m.groups()[0]]
+            # print d, rest
+            while rest:
+                m = self.DOT_PATTERN.match(rest)
+                if m:
+                    d = d[m.groups()[0]]
+                else:
+                    m = self.INDEX_PATTERN.match(rest)
+                    if m:
+                        idx = m.groups()[0]
+                        if not self.DIGIT_PATTERN.match(idx):
+                            d = d[idx]
+                        else:
+                            try:
+                                n = int(idx)  # try as number first (most likely)
+                                d = d[n]
+                            except TypeError:
+                                d = d[idx]
+                if m:
+                    rest = rest[m.end():]
+                else:
+                    raise ValueError('Unable to convert '
+                                     '%r at %r' % (value, rest))
+        # rest should be empty
+        return d
+
+    def convert(self, value):
+        """
+        Convert values to an appropriate type. dicts, lists and tuples are
+        replaced by their converting alternatives. Strings are checked to
+        see if they have a conversion format and are converted if they do.
+        """
+        if not isinstance(value, ConvertingDict) and isinstance(value, dict):
+            value = ConvertingDict(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingList) and isinstance(value, list):
+            value = ConvertingList(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingTuple) and\
+                 isinstance(value, tuple):
+            value = ConvertingTuple(value)
+            value.configurator = self
+        elif isinstance(value, six.string_types):  # str for py3k
+            m = self.CONVERT_PATTERN.match(value)
+            if m:
+                d = m.groupdict()
+                prefix = d['prefix']
+                converter = self.value_converters.get(prefix, None)
+                if converter:
+                    suffix = d['suffix']
+                    converter = getattr(self, converter)
+                    value = converter(suffix)
+        return value
+
+    def configure_custom(self, config):
+        """Configure an object with a user-supplied factory."""
+        c = config.pop('()')
+        if not hasattr(c, '__call__') and hasattr(types, 'ClassType') and type(c) != types.ClassType:
+            c = self.resolve(c)
+        props = config.pop('.', None)
+        # Check for valid identifiers
+        kwargs = dict((k, config[k]) for k in config if valid_ident(k))
+        result = c(**kwargs)
+        if props:
+            for name, value in props.items():
+                setattr(result, name, value)
+        return result
+
+    def as_tuple(self, value):
+        """Utility function which converts lists to tuples."""
+        if isinstance(value, list):
+            value = tuple(value)
+        return value
+
+
+class DictConfigurator(BaseConfigurator):
+    """
+    Configure logging using a dictionary-like object to describe the
+    configuration.
+    """
+
+    def configure(self):
+        """Do the configuration."""
+
+        config = self.config
+        if 'version' not in config:
+            raise ValueError("dictionary doesn't specify a version")
+        if config['version'] != 1:
+            raise ValueError("Unsupported version: %s" % config['version'])
+        incremental = config.pop('incremental', False)
+        EMPTY_DICT = {}
+        logging._acquireLock()
+        try:
+            if incremental:
+                handlers = config.get('handlers', EMPTY_DICT)
+                # incremental handler config only if handler name
+                # ties in to logging._handlers (Python 2.7)
+                if sys.version_info[:2] == (2, 7):
+                    for name in handlers:
+                        if name not in logging._handlers:
+                            raise ValueError('No handler found with '
+                                             'name %r'  % name)
+                        else:
+                            try:
+                                handler = logging._handlers[name]
+                                handler_config = handlers[name]
+                                level = handler_config.get('level', None)
+                                if level:
+                                    handler.setLevel(_checkLevel(level))
+                            except StandardError as e:
+                                raise ValueError('Unable to configure handler '
+                                                 '%r: %s' % (name, e))
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    try:
+                        self.configure_logger(name, loggers[name], True)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r: %s' % (name, e))
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root, True)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger: %s' % e)
+            else:
+                disable_existing = config.pop('disable_existing_loggers', True)
+
+                logging._handlers.clear()
+                del logging._handlerList[:]
+
+                # Do formatters first - they don't refer to anything else
+                formatters = config.get('formatters', EMPTY_DICT)
+                for name in formatters:
+                    try:
+                        formatters[name] = self.configure_formatter(
+                                                            formatters[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure '
+                                         'formatter %r: %s' % (name, e))
+                # Next, do filters - they don't refer to anything else, either
+                filters = config.get('filters', EMPTY_DICT)
+                for name in filters:
+                    try:
+                        filters[name] = self.configure_filter(filters[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure '
+                                         'filter %r: %s' % (name, e))
+
+                # Next, do handlers - they refer to formatters and filters
+                # As handlers can refer to other handlers, sort the keys
+                # to allow a deterministic order of configuration
+                handlers = config.get('handlers', EMPTY_DICT)
+                for name in sorted(handlers):
+                    try:
+                        handler = self.configure_handler(handlers[name])
+                        handler.name = name
+                        handlers[name] = handler
+                    except StandardError as e:
+                        raise ValueError('Unable to configure handler '
+                                         '%r: %s' % (name, e))
+                # Next, do loggers - they refer to handlers and filters
+
+                # we don't want to lose the existing loggers,
+                # since other threads may have pointers to them.
+                # existing is set to contain all existing loggers,
+                # and as we go through the new configuration we
+                # remove any which are configured. At the end,
+                # what's left in existing is the set of loggers
+                # which were in the previous configuration but
+                # which are not in the new configuration.
+                root = logging.root
+                existing = list(root.manager.loggerDict)
+                # The list needs to be sorted so that we can
+                # avoid disabling child loggers of explicitly
+                # named loggers. With a sorted list it is easier
+                # to find the child loggers.
+                existing.sort()
+                # We'll keep the list of existing loggers
+                # which are children of named loggers here...
+                child_loggers = []
+                # now set up the new ones...
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    if name in existing:
+                        i = existing.index(name)
+                        prefixed = name + "."
+                        pflen = len(prefixed)
+                        num_existing = len(existing)
+                        i = i + 1  # look at the entry after name
+                        while (i < num_existing) and\
+                              (existing[i][:pflen] == prefixed):
+                            child_loggers.append(existing[i])
+                            i = i + 1
+                        existing.remove(name)
+                    try:
+                        self.configure_logger(name, loggers[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r: %s' % (name, e))
+
+                # Disable any old loggers. There's no point deleting
+                # them as other threads may continue to hold references
+                # and by disabling them, you stop them doing any logging.
+                # However, don't disable children of named loggers, as that's
+                # probably not what was intended by the user.
+                for log in existing:
+                    logger = root.manager.loggerDict[log]
+                    if log in child_loggers:
+                        logger.level = logging.NOTSET
+                        logger.handlers = []
+                        logger.propagate = True
+                    elif disable_existing:
+                        logger.disabled = True
+
+                # And finally, do the root logger
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger: %s' % e)
+        finally:
+            logging._releaseLock()
+
+    def configure_formatter(self, config):
+        """Configure a formatter from a dictionary."""
+        if '()' in config:
+            factory = config['()']  # for use in exception handler
+            try:
+                result = self.configure_custom(config)
+            except TypeError as te:
+                if "'format'" not in str(te):
+                    raise
+                # Name of parameter changed from fmt to format.
+                # Retry with old name.
+                # This is so that code can be used with older Python versions
+                #(e.g. by Django)
+                config['fmt'] = config.pop('format')
+                config['()'] = factory
+                result = self.configure_custom(config)
+        else:
+            fmt = config.get('format', None)
+            dfmt = config.get('datefmt', None)
+            result = logging.Formatter(fmt, dfmt)
+        return result
+
+    def configure_filter(self, config):
+        """Configure a filter from a dictionary."""
+        if '()' in config:
+            result = self.configure_custom(config)
+        else:
+            name = config.get('name', '')
+            result = logging.Filter(name)
+        return result
+
+    def add_filters(self, filterer, filters):
+        """Add filters to a filterer from a list of names."""
+        for f in filters:
+            try:
+                filterer.addFilter(self.config['filters'][f])
+            except StandardError as e:
+                raise ValueError('Unable to add filter %r: %s' % (f, e))
+
+    def configure_handler(self, config):
+        """Configure a handler from a dictionary."""
+        formatter = config.pop('formatter', None)
+        if formatter:
+            try:
+                formatter = self.config['formatters'][formatter]
+            except StandardError as e:
+                raise ValueError('Unable to set formatter '
+                                 '%r: %s' % (formatter, e))
+        level = config.pop('level', None)
+        filters = config.pop('filters', None)
+        if '()' in config:
+            c = config.pop('()')
+            if not hasattr(c, '__call__') and hasattr(types, 'ClassType') and type(c) != types.ClassType:
+                c = self.resolve(c)
+            factory = c
+        else:
+            klass = self.resolve(config.pop('class'))
+            # Special case for handler which refers to another handler
+            if issubclass(klass, logging.handlers.MemoryHandler) and\
+                'target' in config:
+                try:
+                    config['target'] = self.config['handlers'][config['target']]
+                except StandardError as e:
+                    raise ValueError('Unable to set target handler '
+                                     '%r: %s' % (config['target'], e))
+            elif issubclass(klass, logging.handlers.SMTPHandler) and\
+                'mailhost' in config:
+                config['mailhost'] = self.as_tuple(config['mailhost'])
+            elif issubclass(klass, logging.handlers.SysLogHandler) and\
+                'address' in config:
+                config['address'] = self.as_tuple(config['address'])
+            factory = klass
+        kwargs = dict((k, config[k]) for k in config if valid_ident(k))
+        try:
+            result = factory(**kwargs)
+        except TypeError as te:
+            if "'stream'" not in str(te):
+                raise
+            # The argument name changed from strm to stream
+            # Retry with old name.
+            # This is so that code can be used with older Python versions
+            #(e.g. by Django)
+            kwargs['strm'] = kwargs.pop('stream')
+            result = factory(**kwargs)
+        if formatter:
+            result.setFormatter(formatter)
+        if level is not None:
+            result.setLevel(_checkLevel(level))
+        if filters:
+            self.add_filters(result, filters)
+        return result
+
+    def add_handlers(self, logger, handlers):
+        """Add handlers to a logger from a list of names."""
+        for h in handlers:
+            try:
+                logger.addHandler(self.config['handlers'][h])
+            except StandardError as e:
+                raise ValueError('Unable to add handler %r: %s' % (h, e))
+
+    def common_logger_config(self, logger, config, incremental=False):
+        """
+        Perform configuration which is common to root and non-root loggers.
+        """
+        level = config.get('level', None)
+        if level is not None:
+            logger.setLevel(_checkLevel(level))
+        if not incremental:
+            # Remove any existing handlers
+            for h in logger.handlers[:]:
+                logger.removeHandler(h)
+            handlers = config.get('handlers', None)
+            if handlers:
+                self.add_handlers(logger, handlers)
+            filters = config.get('filters', None)
+            if filters:
+                self.add_filters(logger, filters)
+
+    def configure_logger(self, name, config, incremental=False):
+        """Configure a non-root logger from a dictionary."""
+        logger = logging.getLogger(name)
+        self.common_logger_config(logger, config, incremental)
+        propagate = config.get('propagate', None)
+        if propagate is not None:
+            logger.propagate = propagate
+
+    def configure_root(self, config, incremental=False):
+        """Configure a root logger from a dictionary."""
+        root = logging.getLogger()
+        self.common_logger_config(root, config, incremental)
+
+dictConfigClass = DictConfigurator
+
+
+def dictConfig(config):
+    """Configure logging using a dictionary."""
+    dictConfigClass(config).configure()
diff --git a/venv/lib/python3.5/site-packages/pip/download.py b/venv/lib/python3.5/site-packages/pip/download.py
new file mode 100644
index 0000000..54d3131
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/download.py
@@ -0,0 +1,906 @@
+from __future__ import absolute_import
+
+import cgi
+import email.utils
+import getpass
+import json
+import logging
+import mimetypes
+import os
+import platform
+import re
+import shutil
+import sys
+import tempfile
+
+try:
+    import ssl  # noqa
+    HAS_TLS = True
+except ImportError:
+    HAS_TLS = False
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+
+import pip
+
+from pip.exceptions import InstallationError, HashMismatch
+from pip.models import PyPI
+from pip.utils import (splitext, rmtree, format_size, display_path,
+                       backup_dir, ask_path_exists, unpack_file,
+                       ARCHIVE_EXTENSIONS, consume, call_subprocess)
+from pip.utils.encoding import auto_decode
+from pip.utils.filesystem import check_path_owner
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip.utils.glibc import libc_ver
+from pip.utils.ui import DownloadProgressBar, DownloadProgressSpinner
+from pip.locations import write_delete_marker_file
+from pip.vcs import vcs
+from pip._vendor import requests, six
+from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
+from pip._vendor.requests.auth import AuthBase, HTTPBasicAuth
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+from pip._vendor.requests.utils import get_netrc_auth
+from pip._vendor.requests.structures import CaseInsensitiveDict
+from pip._vendor.requests.packages import urllib3
+from pip._vendor.cachecontrol import CacheControlAdapter
+from pip._vendor.cachecontrol.caches import FileCache
+from pip._vendor.lockfile import LockError
+from pip._vendor.six.moves import xmlrpc_client
+
+
+__all__ = ['get_file_content',
+           'is_url', 'url_to_path', 'path_to_url',
+           'is_archive_file', 'unpack_vcs_link',
+           'unpack_file_url', 'is_vcs_url', 'is_file_url',
+           'unpack_http_url', 'unpack_url']
+
+
+logger = logging.getLogger(__name__)
+
+
+def user_agent():
+    """
+    Return a string representing the user agent.
+    """
+    data = {
+        "installer": {"name": "pip", "version": pip.__version__},
+        "python": platform.python_version(),
+        "implementation": {
+            "name": platform.python_implementation(),
+        },
+    }
+
+    if data["implementation"]["name"] == 'CPython':
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'PyPy':
+        if sys.pypy_version_info.releaselevel == 'final':
+            pypy_version_info = sys.pypy_version_info[:3]
+        else:
+            pypy_version_info = sys.pypy_version_info
+        data["implementation"]["version"] = ".".join(
+            [str(x) for x in pypy_version_info]
+        )
+    elif data["implementation"]["name"] == 'Jython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'IronPython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+
+    if sys.platform.startswith("linux"):
+        from pip._vendor import distro
+        distro_infos = dict(filter(
+            lambda x: x[1],
+            zip(["name", "version", "id"], distro.linux_distribution()),
+        ))
+        libc = dict(filter(
+            lambda x: x[1],
+            zip(["lib", "version"], libc_ver()),
+        ))
+        if libc:
+            distro_infos["libc"] = libc
+        if distro_infos:
+            data["distro"] = distro_infos
+
+    if sys.platform.startswith("darwin") and platform.mac_ver()[0]:
+        data["distro"] = {"name": "macOS", "version": platform.mac_ver()[0]}
+
+    if platform.system():
+        data.setdefault("system", {})["name"] = platform.system()
+
+    if platform.release():
+        data.setdefault("system", {})["release"] = platform.release()
+
+    if platform.machine():
+        data["cpu"] = platform.machine()
+
+    # Python 2.6 doesn't have ssl.OPENSSL_VERSION.
+    if HAS_TLS and sys.version_info[:2] > (2, 6):
+        data["openssl_version"] = ssl.OPENSSL_VERSION
+
+    return "{data[installer][name]}/{data[installer][version]} {json}".format(
+        data=data,
+        json=json.dumps(data, separators=(",", ":"), sort_keys=True),
+    )
+
+
+class MultiDomainBasicAuth(AuthBase):
+
+    def __init__(self, prompting=True):
+        self.prompting = prompting
+        self.passwords = {}
+
+    def __call__(self, req):
+        parsed = urllib_parse.urlparse(req.url)
+
+        # Get the netloc without any embedded credentials
+        netloc = parsed.netloc.rsplit("@", 1)[-1]
+
+        # Set the url of the request to the url without any credentials
+        req.url = urllib_parse.urlunparse(parsed[:1] + (netloc,) + parsed[2:])
+
+        # Use any stored credentials that we have for this netloc
+        username, password = self.passwords.get(netloc, (None, None))
+
+        # Extract credentials embedded in the url if we have none stored
+        if username is None:
+            username, password = self.parse_credentials(parsed.netloc)
+
+        # Get creds from netrc if we still don't have them
+        if username is None and password is None:
+            netrc_auth = get_netrc_auth(req.url)
+            username, password = netrc_auth if netrc_auth else (None, None)
+
+        if username or password:
+            # Store the username and password
+            self.passwords[netloc] = (username, password)
+
+            # Send the basic auth with this request
+            req = HTTPBasicAuth(username or "", password or "")(req)
+
+        # Attach a hook to handle 401 responses
+        req.register_hook("response", self.handle_401)
+
+        return req
+
+    def handle_401(self, resp, **kwargs):
+        # We only care about 401 responses, anything else we want to just
+        #   pass through the actual response
+        if resp.status_code != 401:
+            return resp
+
+        # We are not able to prompt the user so simply return the response
+        if not self.prompting:
+            return resp
+
+        parsed = urllib_parse.urlparse(resp.url)
+
+        # Prompt the user for a new username and password
+        username = six.moves.input("User for %s: " % parsed.netloc)
+        password = getpass.getpass("Password: ")
+
+        # Store the new username and password to use for future requests
+        if username or password:
+            self.passwords[parsed.netloc] = (username, password)
+
+        # Consume content and release the original connection to allow our new
+        #   request to reuse the same one.
+        resp.content
+        resp.raw.release_conn()
+
+        # Add our new username and password to the request
+        req = HTTPBasicAuth(username or "", password or "")(resp.request)
+
+        # Send our new request
+        new_resp = resp.connection.send(req, **kwargs)
+        new_resp.history.append(resp)
+
+        return new_resp
+
+    def parse_credentials(self, netloc):
+        if "@" in netloc:
+            userinfo = netloc.rsplit("@", 1)[0]
+            if ":" in userinfo:
+                return userinfo.split(":", 1)
+            return userinfo, None
+        return None, None
+
+
+class LocalFSAdapter(BaseAdapter):
+
+    def send(self, request, stream=None, timeout=None, verify=None, cert=None,
+             proxies=None):
+        pathname = url_to_path(request.url)
+
+        resp = Response()
+        resp.status_code = 200
+        resp.url = request.url
+
+        try:
+            stats = os.stat(pathname)
+        except OSError as exc:
+            resp.status_code = 404
+            resp.raw = exc
+        else:
+            modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
+            content_type = mimetypes.guess_type(pathname)[0] or "text/plain"
+            resp.headers = CaseInsensitiveDict({
+                "Content-Type": content_type,
+                "Content-Length": stats.st_size,
+                "Last-Modified": modified,
+            })
+
+            resp.raw = open(pathname, "rb")
+            resp.close = resp.raw.close
+
+        return resp
+
+    def close(self):
+        pass
+
+
+class SafeFileCache(FileCache):
+    """
+    A file based cache which is safe to use even when the target directory may
+    not be accessible or writable.
+    """
+
+    def __init__(self, *args, **kwargs):
+        super(SafeFileCache, self).__init__(*args, **kwargs)
+
+        # Check to ensure that the directory containing our cache directory
+        # is owned by the user current executing pip. If it does not exist
+        # we will check the parent directory until we find one that does exist.
+        # If it is not owned by the user executing pip then we will disable
+        # the cache and log a warning.
+        if not check_path_owner(self.directory):
+            logger.warning(
+                "The directory '%s' or its parent directory is not owned by "
+                "the current user and the cache has been disabled. Please "
+                "check the permissions and owner of that directory. If "
+                "executing pip with sudo, you may want sudo's -H flag.",
+                self.directory,
+            )
+
+            # Set our directory to None to disable the Cache
+            self.directory = None
+
+    def get(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).get(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def set(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).set(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def delete(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).delete(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+
+class InsecureHTTPAdapter(HTTPAdapter):
+
+    def cert_verify(self, conn, url, verify, cert):
+        conn.cert_reqs = 'CERT_NONE'
+        conn.ca_certs = None
+
+
+class PipSession(requests.Session):
+
+    timeout = None
+
+    def __init__(self, *args, **kwargs):
+        retries = kwargs.pop("retries", 0)
+        cache = kwargs.pop("cache", None)
+        insecure_hosts = kwargs.pop("insecure_hosts", [])
+
+        super(PipSession, self).__init__(*args, **kwargs)
+
+        # Attach our User Agent to the request
+        self.headers["User-Agent"] = user_agent()
+
+        # Attach our Authentication handler to the session
+        self.auth = MultiDomainBasicAuth()
+
+        # Create our urllib3.Retry instance which will allow us to customize
+        # how we handle retries.
+        retries = urllib3.Retry(
+            # Set the total number of retries that a particular request can
+            # have.
+            total=retries,
+
+            # A 503 error from PyPI typically means that the Fastly -> Origin
+            # connection got interrupted in some way. A 503 error in general
+            # is typically considered a transient error so we'll go ahead and
+            # retry it.
+            status_forcelist=[503],
+
+            # Add a small amount of back off between failed requests in
+            # order to prevent hammering the service.
+            backoff_factor=0.25,
+        )
+
+        # We want to _only_ cache responses on securely fetched origins. We do
+        # this because we can't validate the response of an insecurely fetched
+        # origin, and we don't want someone to be able to poison the cache and
+        # require manual eviction from the cache to fix it.
+        if cache:
+            secure_adapter = CacheControlAdapter(
+                cache=SafeFileCache(cache, use_dir_lock=True),
+                max_retries=retries,
+            )
+        else:
+            secure_adapter = HTTPAdapter(max_retries=retries)
+
+        # Our Insecure HTTPAdapter disables HTTPS validation. It does not
+        # support caching (see above) so we'll use it for all http:// URLs as
+        # well as any https:// host that we've marked as ignoring TLS errors
+        # for.
+        insecure_adapter = InsecureHTTPAdapter(max_retries=retries)
+
+        self.mount("https://", secure_adapter)
+        self.mount("http://", insecure_adapter)
+
+        # Enable file:// urls
+        self.mount("file://", LocalFSAdapter())
+
+        # We want to use a non-validating adapter for any requests which are
+        # deemed insecure.
+        for host in insecure_hosts:
+            self.mount("https://{0}/".format(host), insecure_adapter)
+
+    def request(self, method, url, *args, **kwargs):
+        # Allow setting a default timeout on a session
+        kwargs.setdefault("timeout", self.timeout)
+
+        # Dispatch the actual request
+        return super(PipSession, self).request(method, url, *args, **kwargs)
+
+
+def get_file_content(url, comes_from=None, session=None):
+    """Gets the content of a file; it may be a filename, file: URL, or
+    http: URL.  Returns (location, content).  Content is unicode."""
+    if session is None:
+        raise TypeError(
+            "get_file_content() missing 1 required keyword argument: 'session'"
+        )
+
+    match = _scheme_re.search(url)
+    if match:
+        scheme = match.group(1).lower()
+        if (scheme == 'file' and comes_from and
+                comes_from.startswith('http')):
+            raise InstallationError(
+                'Requirements file %s references URL %s, which is local'
+                % (comes_from, url))
+        if scheme == 'file':
+            path = url.split(':', 1)[1]
+            path = path.replace('\\', '/')
+            match = _url_slash_drive_re.match(path)
+            if match:
+                path = match.group(1) + ':' + path.split('|', 1)[1]
+            path = urllib_parse.unquote(path)
+            if path.startswith('/'):
+                path = '/' + path.lstrip('/')
+            url = path
+        else:
+            # FIXME: catch some errors
+            resp = session.get(url)
+            resp.raise_for_status()
+            return resp.url, resp.text
+    try:
+        with open(url, 'rb') as f:
+            content = auto_decode(f.read())
+    except IOError as exc:
+        raise InstallationError(
+            'Could not open requirements file: %s' % str(exc)
+        )
+    return url, content
+
+
+_scheme_re = re.compile(r'^(http|https|file):', re.I)
+_url_slash_drive_re = re.compile(r'/*([a-z])\|', re.I)
+
+
+def is_url(name):
+    """Returns true if the name looks like a URL"""
+    if ':' not in name:
+        return False
+    scheme = name.split(':', 1)[0].lower()
+    return scheme in ['http', 'https', 'file', 'ftp'] + vcs.all_schemes
+
+
+def url_to_path(url):
+    """
+    Convert a file: URL to a path.
+    """
+    assert url.startswith('file:'), (
+        "You can only turn file: urls into filenames (not %r)" % url)
+
+    _, netloc, path, _, _ = urllib_parse.urlsplit(url)
+
+    # if we have a UNC path, prepend UNC share notation
+    if netloc:
+        netloc = '\\\\' + netloc
+
+    path = urllib_request.url2pathname(netloc + path)
+    return path
+
+
+def path_to_url(path):
+    """
+    Convert a path to a file: URL.  The path will be made absolute and have
+    quoted path parts.
+    """
+    path = os.path.normpath(os.path.abspath(path))
+    url = urllib_parse.urljoin('file:', urllib_request.pathname2url(path))
+    return url
+
+
+def is_archive_file(name):
+    """Return True if `name` is a considered as an archive file."""
+    ext = splitext(name)[1].lower()
+    if ext in ARCHIVE_EXTENSIONS:
+        return True
+    return False
+
+
+def unpack_vcs_link(link, location):
+    vcs_backend = _get_used_vcs_backend(link)
+    vcs_backend.unpack(location)
+
+
+def _get_used_vcs_backend(link):
+    for backend in vcs.backends:
+        if link.scheme in backend.schemes:
+            vcs_backend = backend(link.url)
+            return vcs_backend
+
+
+def is_vcs_url(link):
+    return bool(_get_used_vcs_backend(link))
+
+
+def is_file_url(link):
+    return link.url.lower().startswith('file:')
+
+
+def is_dir_url(link):
+    """Return whether a file:// Link points to a directory.
+
+    ``link`` must not have any other scheme but file://. Call is_file_url()
+    first.
+
+    """
+    link_path = url_to_path(link.url_without_fragment)
+    return os.path.isdir(link_path)
+
+
+def _progress_indicator(iterable, *args, **kwargs):
+    return iterable
+
+
+def _download_url(resp, link, content_file, hashes):
+    try:
+        total_length = int(resp.headers['content-length'])
+    except (ValueError, KeyError, TypeError):
+        total_length = 0
+
+    cached_resp = getattr(resp, "from_cache", False)
+
+    if logger.getEffectiveLevel() > logging.INFO:
+        show_progress = False
+    elif cached_resp:
+        show_progress = False
+    elif total_length > (40 * 1000):
+        show_progress = True
+    elif not total_length:
+        show_progress = True
+    else:
+        show_progress = False
+
+    show_url = link.show_url
+
+    def resp_read(chunk_size):
+        try:
+            # Special case for urllib3.
+            for chunk in resp.raw.stream(
+                    chunk_size,
+                    # We use decode_content=False here because we don't
+                    # want urllib3 to mess with the raw bytes we get
+                    # from the server. If we decompress inside of
+                    # urllib3 then we cannot verify the checksum
+                    # because the checksum will be of the compressed
+                    # file. This breakage will only occur if the
+                    # server adds a Content-Encoding header, which
+                    # depends on how the server was configured:
+                    # - Some servers will notice that the file isn't a
+                    #   compressible file and will leave the file alone
+                    #   and with an empty Content-Encoding
+                    # - Some servers will notice that the file is
+                    #   already compressed and will leave the file
+                    #   alone and will add a Content-Encoding: gzip
+                    #   header
+                    # - Some servers won't notice anything at all and
+                    #   will take a file that's already been compressed
+                    #   and compress it again and set the
+                    #   Content-Encoding: gzip header
+                    #
+                    # By setting this not to decode automatically we
+                    # hope to eliminate problems with the second case.
+                    decode_content=False):
+                yield chunk
+        except AttributeError:
+            # Standard file-like object.
+            while True:
+                chunk = resp.raw.read(chunk_size)
+                if not chunk:
+                    break
+                yield chunk
+
+    def written_chunks(chunks):
+        for chunk in chunks:
+            content_file.write(chunk)
+            yield chunk
+
+    progress_indicator = _progress_indicator
+
+    if link.netloc == PyPI.netloc:
+        url = show_url
+    else:
+        url = link.url_without_fragment
+
+    if show_progress:  # We don't show progress on cached responses
+        if total_length:
+            logger.info("Downloading %s (%s)", url, format_size(total_length))
+            progress_indicator = DownloadProgressBar(max=total_length).iter
+        else:
+            logger.info("Downloading %s", url)
+            progress_indicator = DownloadProgressSpinner().iter
+    elif cached_resp:
+        logger.info("Using cached %s", url)
+    else:
+        logger.info("Downloading %s", url)
+
+    logger.debug('Downloading from URL %s', link)
+
+    downloaded_chunks = written_chunks(
+        progress_indicator(
+            resp_read(CONTENT_CHUNK_SIZE),
+            CONTENT_CHUNK_SIZE
+        )
+    )
+    if hashes:
+        hashes.check_against_chunks(downloaded_chunks)
+    else:
+        consume(downloaded_chunks)
+
+
+def _copy_file(filename, location, link):
+    copy = True
+    download_location = os.path.join(location, link.filename)
+    if os.path.exists(download_location):
+        response = ask_path_exists(
+            'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)abort' %
+            display_path(download_location), ('i', 'w', 'b', 'a'))
+        if response == 'i':
+            copy = False
+        elif response == 'w':
+            logger.warning('Deleting %s', display_path(download_location))
+            os.remove(download_location)
+        elif response == 'b':
+            dest_file = backup_dir(download_location)
+            logger.warning(
+                'Backing up %s to %s',
+                display_path(download_location),
+                display_path(dest_file),
+            )
+            shutil.move(download_location, dest_file)
+        elif response == 'a':
+            sys.exit(-1)
+    if copy:
+        shutil.copy(filename, download_location)
+        logger.info('Saved %s', display_path(download_location))
+
+
+def unpack_http_url(link, location, download_dir=None,
+                    session=None, hashes=None):
+    if session is None:
+        raise TypeError(
+            "unpack_http_url() missing 1 required keyword argument: 'session'"
+        )
+
+    temp_dir = tempfile.mkdtemp('-unpack', 'pip-')
+
+    # If a download dir is specified, is the file already downloaded there?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link,
+                                                      download_dir,
+                                                      hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+        content_type = mimetypes.guess_type(from_path)[0]
+    else:
+        # let's download to a tmp dir
+        from_path, content_type = _download_http_url(link,
+                                                     session,
+                                                     temp_dir,
+                                                     hashes)
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies
+    unpack_file(from_path, location, content_type, link)
+
+    # a download dir is specified; let's copy the archive there
+    if download_dir and not already_downloaded_path:
+        _copy_file(from_path, download_dir, link)
+
+    if not already_downloaded_path:
+        os.unlink(from_path)
+    rmtree(temp_dir)
+
+
+def unpack_file_url(link, location, download_dir=None, hashes=None):
+    """Unpack link into location.
+
+    If download_dir is provided and link points to a file, make a copy
+    of the link file inside download_dir.
+    """
+    link_path = url_to_path(link.url_without_fragment)
+
+    # If it's a url to a local directory
+    if is_dir_url(link):
+        if os.path.isdir(location):
+            rmtree(location)
+        shutil.copytree(link_path, location, symlinks=True)
+        if download_dir:
+            logger.info('Link is a directory, ignoring download_dir')
+        return
+
+    # If --require-hashes is off, `hashes` is either empty, the
+    # link's embedded hash, or MissingHashes; it is required to
+    # match. If --require-hashes is on, we are satisfied by any
+    # hash in `hashes` matching: a URL-based or an option-based
+    # one; no internet-sourced hash will be in `hashes`.
+    if hashes:
+        hashes.check_against_path(link_path)
+
+    # If a download dir is specified, is the file already there and valid?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link,
+                                                      download_dir,
+                                                      hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+    else:
+        from_path = link_path
+
+    content_type = mimetypes.guess_type(from_path)[0]
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies
+    unpack_file(from_path, location, content_type, link)
+
+    # a download dir is specified and not already downloaded
+    if download_dir and not already_downloaded_path:
+        _copy_file(from_path, download_dir, link)
+
+
+def _copy_dist_from_dir(link_path, location):
+    """Copy distribution files in `link_path` to `location`.
+
+    Invoked when user requests to install a local directory. E.g.:
+
+        pip install .
+        pip install ~/dev/git-repos/python-prompt-toolkit
+
+    """
+
+    # Note: This is currently VERY SLOW if you have a lot of data in the
+    # directory, because it copies everything with `shutil.copytree`.
+    # What it should really do is build an sdist and install that.
+    # See https://github.com/pypa/pip/issues/2195
+
+    if os.path.isdir(location):
+        rmtree(location)
+
+    # build an sdist
+    setup_py = 'setup.py'
+    sdist_args = [sys.executable]
+    sdist_args.append('-c')
+    sdist_args.append(SETUPTOOLS_SHIM % setup_py)
+    sdist_args.append('sdist')
+    sdist_args += ['--dist-dir', location]
+    logger.info('Running setup.py sdist for %s', link_path)
+
+    with indent_log():
+        call_subprocess(sdist_args, cwd=link_path, show_stdout=False)
+
+    # unpack sdist into `location`
+    sdist = os.path.join(location, os.listdir(location)[0])
+    logger.info('Unpacking sdist %s into %s', sdist, location)
+    unpack_file(sdist, location, content_type=None, link=None)
+
+
+class PipXmlrpcTransport(xmlrpc_client.Transport):
+    """Provide a `xmlrpclib.Transport` implementation via a `PipSession`
+    object.
+    """
+
+    def __init__(self, index_url, session, use_datetime=False):
+        xmlrpc_client.Transport.__init__(self, use_datetime)
+        index_parts = urllib_parse.urlparse(index_url)
+        self._scheme = index_parts.scheme
+        self._session = session
+
+    def request(self, host, handler, request_body, verbose=False):
+        parts = (self._scheme, host, handler, None, None, None)
+        url = urllib_parse.urlunparse(parts)
+        try:
+            headers = {'Content-Type': 'text/xml'}
+            response = self._session.post(url, data=request_body,
+                                          headers=headers, stream=True)
+            response.raise_for_status()
+            self.verbose = verbose
+            return self.parse_response(response.raw)
+        except requests.HTTPError as exc:
+            logger.critical(
+                "HTTP error %s while getting %s",
+                exc.response.status_code, url,
+            )
+            raise
+
+
+def unpack_url(link, location, download_dir=None,
+               only_download=False, session=None, hashes=None):
+    """Unpack link.
+       If link is a VCS link:
+         if only_download, export into download_dir and ignore location
+          else unpack into location
+       for other types of link:
+         - unpack into location
+         - if download_dir, copy the file into download_dir
+         - if only_download, mark location for deletion
+
+    :param hashes: A Hashes object, one of whose embedded hashes must match,
+        or HashMismatch will be raised. If the Hashes is empty, no matches are
+        required, and unhashable types of requirements (like VCS ones, which
+        would ordinarily raise HashUnsupported) are allowed.
+    """
+    # non-editable vcs urls
+    if is_vcs_url(link):
+        unpack_vcs_link(link, location)
+
+    # file urls
+    elif is_file_url(link):
+        unpack_file_url(link, location, download_dir, hashes=hashes)
+
+    # http urls
+    else:
+        if session is None:
+            session = PipSession()
+
+        unpack_http_url(
+            link,
+            location,
+            download_dir,
+            session,
+            hashes=hashes
+        )
+    if only_download:
+        write_delete_marker_file(location)
+
+
+def _download_http_url(link, session, temp_dir, hashes):
+    """Download link url into temp_dir using provided session"""
+    target_url = link.url.split('#', 1)[0]
+    try:
+        resp = session.get(
+            target_url,
+            # We use Accept-Encoding: identity here because requests
+            # defaults to accepting compressed responses. This breaks in
+            # a variety of ways depending on how the server is configured.
+            # - Some servers will notice that the file isn't a compressible
+            #   file and will leave the file alone and with an empty
+            #   Content-Encoding
+            # - Some servers will notice that the file is already
+            #   compressed and will leave the file alone and will add a
+            #   Content-Encoding: gzip header
+            # - Some servers won't notice anything at all and will take
+            #   a file that's already been compressed and compress it again
+            #   and set the Content-Encoding: gzip header
+            # By setting this to request only the identity encoding We're
+            # hoping to eliminate the third case. Hopefully there does not
+            # exist a server which when given a file will notice it is
+            # already compressed and that you're not asking for a
+            # compressed file and will then decompress it before sending
+            # because if that's the case I don't think it'll ever be
+            # possible to make this work.
+            headers={"Accept-Encoding": "identity"},
+            stream=True,
+        )
+        resp.raise_for_status()
+    except requests.HTTPError as exc:
+        logger.critical(
+            "HTTP error %s while getting %s", exc.response.status_code, link,
+        )
+        raise
+
+    content_type = resp.headers.get('content-type', '')
+    filename = link.filename  # fallback
+    # Have a look at the Content-Disposition header for a better guess
+    content_disposition = resp.headers.get('content-disposition')
+    if content_disposition:
+        type, params = cgi.parse_header(content_disposition)
+        # We use ``or`` here because we don't want to use an "empty" value
+        # from the filename param.
+        filename = params.get('filename') or filename
+    ext = splitext(filename)[1]
+    if not ext:
+        ext = mimetypes.guess_extension(content_type)
+        if ext:
+            filename += ext
+    if not ext and link.url != resp.url:
+        ext = os.path.splitext(resp.url)[1]
+        if ext:
+            filename += ext
+    file_path = os.path.join(temp_dir, filename)
+    with open(file_path, 'wb') as content_file:
+        _download_url(resp, link, content_file, hashes)
+    return file_path, content_type
+
+
+def _check_download_dir(link, download_dir, hashes):
+    """ Check download_dir for previously downloaded file with correct hash
+        If a correct file is found return its path else None
+    """
+    download_path = os.path.join(download_dir, link.filename)
+    if os.path.exists(download_path):
+        # If already downloaded, does its hash match?
+        logger.info('File was already downloaded %s', download_path)
+        if hashes:
+            try:
+                hashes.check_against_path(download_path)
+            except HashMismatch:
+                logger.warning(
+                    'Previously-downloaded file %s has bad hash. '
+                    'Re-downloading.',
+                    download_path
+                )
+                os.unlink(download_path)
+                return None
+        return download_path
+    return None
diff --git a/venv/lib/python3.5/site-packages/pip/exceptions.py b/venv/lib/python3.5/site-packages/pip/exceptions.py
new file mode 100644
index 0000000..50b527f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/exceptions.py
@@ -0,0 +1,244 @@
+"""Exceptions used throughout package"""
+from __future__ import absolute_import
+
+from itertools import chain, groupby, repeat
+
+from pip._vendor.six import iteritems
+
+
+class PipError(Exception):
+    """Base pip exception"""
+
+
+class InstallationError(PipError):
+    """General exception during installation"""
+
+
+class UninstallationError(PipError):
+    """General exception during uninstallation"""
+
+
+class DistributionNotFound(InstallationError):
+    """Raised when a distribution cannot be found to satisfy a requirement"""
+
+
+class RequirementsFileParseError(InstallationError):
+    """Raised when a general error occurs parsing a requirements file line."""
+
+
+class BestVersionAlreadyInstalled(PipError):
+    """Raised when the most up-to-date version of a package is already
+    installed."""
+
+
+class BadCommand(PipError):
+    """Raised when virtualenv or a command is not found"""
+
+
+class CommandError(PipError):
+    """Raised when there is an error in command-line arguments"""
+
+
+class PreviousBuildDirError(PipError):
+    """Raised when there's a previous conflicting build directory"""
+
+
+class InvalidWheelFilename(InstallationError):
+    """Invalid wheel filename."""
+
+
+class UnsupportedWheel(InstallationError):
+    """Unsupported wheel."""
+
+
+class HashErrors(InstallationError):
+    """Multiple HashError instances rolled into one for reporting"""
+
+    def __init__(self):
+        self.errors = []
+
+    def append(self, error):
+        self.errors.append(error)
+
+    def __str__(self):
+        lines = []
+        self.errors.sort(key=lambda e: e.order)
+        for cls, errors_of_cls in groupby(self.errors, lambda e: e.__class__):
+            lines.append(cls.head)
+            lines.extend(e.body() for e in errors_of_cls)
+        if lines:
+            return '\n'.join(lines)
+
+    def __nonzero__(self):
+        return bool(self.errors)
+
+    def __bool__(self):
+        return self.__nonzero__()
+
+
+class HashError(InstallationError):
+    """
+    A failure to verify a package against known-good hashes
+
+    :cvar order: An int sorting hash exception classes by difficulty of
+        recovery (lower being harder), so the user doesn't bother fretting
+        about unpinned packages when he has deeper issues, like VCS
+        dependencies, to deal with. Also keeps error reports in a
+        deterministic order.
+    :cvar head: A section heading for display above potentially many
+        exceptions of this kind
+    :ivar req: The InstallRequirement that triggered this error. This is
+        pasted on after the exception is instantiated, because it's not
+        typically available earlier.
+
+    """
+    req = None
+    head = ''
+
+    def body(self):
+        """Return a summary of me for display under the heading.
+
+        This default implementation simply prints a description of the
+        triggering requirement.
+
+        :param req: The InstallRequirement that provoked this error, with
+            populate_link() having already been called
+
+        """
+        return '    %s' % self._requirement_name()
+
+    def __str__(self):
+        return '%s\n%s' % (self.head, self.body())
+
+    def _requirement_name(self):
+        """Return a description of the requirement that triggered me.
+
+        This default implementation returns long description of the req, with
+        line numbers
+
+        """
+        return str(self.req) if self.req else 'unknown package'
+
+
+class VcsHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 0
+    head = ("Can't verify hashes for these requirements because we don't "
+            "have a way to hash version control repositories:")
+
+
+class DirectoryUrlHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 1
+    head = ("Can't verify hashes for these file:// requirements because they "
+            "point to directories:")
+
+
+class HashMissing(HashError):
+    """A hash was needed for a requirement but is absent."""
+
+    order = 2
+    head = ('Hashes are required in --require-hashes mode, but they are '
+            'missing from some requirements. Here is a list of those '
+            'requirements along with the hashes their downloaded archives '
+            'actually had. Add lines like these to your requirements files to '
+            'prevent tampering. (If you did not enable --require-hashes '
+            'manually, note that it turns on automatically when any package '
+            'has a hash.)')
+
+    def __init__(self, gotten_hash):
+        """
+        :param gotten_hash: The hash of the (possibly malicious) archive we
+            just downloaded
+        """
+        self.gotten_hash = gotten_hash
+
+    def body(self):
+        from pip.utils.hashes import FAVORITE_HASH  # Dodge circular import.
+
+        package = None
+        if self.req:
+            # In the case of URL-based requirements, display the original URL
+            # seen in the requirements file rather than the package name,
+            # so the output can be directly copied into the requirements file.
+            package = (self.req.original_link if self.req.original_link
+                       # In case someone feeds something downright stupid
+                       # to InstallRequirement's constructor.
+                       else getattr(self.req, 'req', None))
+        return '    %s --hash=%s:%s' % (package or 'unknown package',
+                                        FAVORITE_HASH,
+                                        self.gotten_hash)
+
+
+class HashUnpinned(HashError):
+    """A requirement had a hash specified but was not pinned to a specific
+    version."""
+
+    order = 3
+    head = ('In --require-hashes mode, all requirements must have their '
+            'versions pinned with ==. These do not:')
+
+
+class HashMismatch(HashError):
+    """
+    Distribution file hash values don't match.
+
+    :ivar package_name: The name of the package that triggered the hash
+        mismatch. Feel free to write to this after the exception is raise to
+        improve its error message.
+
+    """
+    order = 4
+    head = ('THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS '
+            'FILE. If you have updated the package versions, please update '
+            'the hashes. Otherwise, examine the package contents carefully; '
+            'someone may have tampered with them.')
+
+    def __init__(self, allowed, gots):
+        """
+        :param allowed: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        :param gots: A dict of algorithm names pointing to hashes we
+            actually got from the files under suspicion
+        """
+        self.allowed = allowed
+        self.gots = gots
+
+    def body(self):
+        return '    %s:\n%s' % (self._requirement_name(),
+                                self._hash_comparison())
+
+    def _hash_comparison(self):
+        """
+        Return a comparison of actual and expected hash values.
+
+        Example::
+
+               Expected sha256 abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde
+                            or 123451234512345123451234512345123451234512345
+                    Got        bcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdef
+
+        """
+        def hash_then_or(hash_name):
+            # For now, all the decent hashes have 6-char names, so we can get
+            # away with hard-coding space literals.
+            return chain([hash_name], repeat('    or'))
+
+        lines = []
+        for hash_name, expecteds in iteritems(self.allowed):
+            prefix = hash_then_or(hash_name)
+            lines.extend(('        Expected %s %s' % (next(prefix), e))
+                         for e in expecteds)
+            lines.append('             Got        %s\n' %
+                         self.gots[hash_name].hexdigest())
+            prefix = '    or'
+        return '\n'.join(lines)
+
+
+class UnsupportedPythonVersion(InstallationError):
+    """Unsupported python version according to Requires-Python package
+    metadata."""
diff --git a/venv/lib/python3.5/site-packages/pip/index.py b/venv/lib/python3.5/site-packages/pip/index.py
new file mode 100644
index 0000000..f653f6e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/index.py
@@ -0,0 +1,1102 @@
+"""Routines related to PyPI, indexes"""
+from __future__ import absolute_import
+
+import logging
+import cgi
+from collections import namedtuple
+import itertools
+import sys
+import os
+import re
+import mimetypes
+import posixpath
+import warnings
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+
+from pip.compat import ipaddress
+from pip.utils import (
+    cached_property, splitext, normalize_path,
+    ARCHIVE_EXTENSIONS, SUPPORTED_EXTENSIONS,
+)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.logging import indent_log
+from pip.utils.packaging import check_requires_python
+from pip.exceptions import (
+    DistributionNotFound, BestVersionAlreadyInstalled, InvalidWheelFilename,
+    UnsupportedWheel,
+)
+from pip.download import HAS_TLS, is_url, path_to_url, url_to_path
+from pip.wheel import Wheel, wheel_ext
+from pip.pep425tags import get_supported
+from pip._vendor import html5lib, requests, six
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging import specifiers
+from pip._vendor.requests.exceptions import SSLError
+from pip._vendor.distlib.compat import unescape
+
+
+__all__ = ['FormatControl', 'fmt_ctl_handle_mutual_exclude', 'PackageFinder']
+
+
+SECURE_ORIGINS = [
+    # protocol, hostname, port
+    # Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
+    ("https", "*", "*"),
+    ("*", "localhost", "*"),
+    ("*", "127.0.0.0/8", "*"),
+    ("*", "::1/128", "*"),
+    ("file", "*", None),
+    # ssh is always secure.
+    ("ssh", "*", "*"),
+]
+
+
+logger = logging.getLogger(__name__)
+
+
+class InstallationCandidate(object):
+
+    def __init__(self, project, version, location):
+        self.project = project
+        self.version = parse_version(version)
+        self.location = location
+        self._key = (self.project, self.version, self.location)
+
+    def __repr__(self):
+        return "<InstallationCandidate({0!r}, {1!r}, {2!r})>".format(
+            self.project, self.version, self.location,
+        )
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, InstallationCandidate):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class PackageFinder(object):
+    """This finds packages.
+
+    This is meant to match easy_install's technique for looking for
+    packages, by reading pages and looking for appropriate links.
+    """
+
+    def __init__(self, find_links, index_urls, allow_all_prereleases=False,
+                 trusted_hosts=None, process_dependency_links=False,
+                 session=None, format_control=None, platform=None,
+                 versions=None, abi=None, implementation=None):
+        """Create a PackageFinder.
+
+        :param format_control: A FormatControl object or None. Used to control
+            the selection of source packages / binary packages when consulting
+            the index and links.
+        :param platform: A string or None. If None, searches for packages
+            that are supported by the current system. Otherwise, will find
+            packages that can be built on the platform passed in. These
+            packages will only be downloaded for distribution: they will
+            not be built locally.
+        :param versions: A list of strings or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param abi: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param implementation: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        """
+        if session is None:
+            raise TypeError(
+                "PackageFinder() missing 1 required keyword argument: "
+                "'session'"
+            )
+
+        # Build find_links. If an argument starts with ~, it may be
+        # a local file relative to a home directory. So try normalizing
+        # it and if it exists, use the normalized version.
+        # This is deliberately conservative - it might be fine just to
+        # blindly normalize anything starting with a ~...
+        self.find_links = []
+        for link in find_links:
+            if link.startswith('~'):
+                new_link = normalize_path(link)
+                if os.path.exists(new_link):
+                    link = new_link
+            self.find_links.append(link)
+
+        self.index_urls = index_urls
+        self.dependency_links = []
+
+        # These are boring links that have already been logged somehow:
+        self.logged_links = set()
+
+        self.format_control = format_control or FormatControl(set(), set())
+
+        # Domains that we won't emit warnings for when not using HTTPS
+        self.secure_origins = [
+            ("*", host, "*")
+            for host in (trusted_hosts if trusted_hosts else [])
+        ]
+
+        # Do we want to allow _all_ pre-releases?
+        self.allow_all_prereleases = allow_all_prereleases
+
+        # Do we process dependency links?
+        self.process_dependency_links = process_dependency_links
+
+        # The Session we'll use to make requests
+        self.session = session
+
+        # The valid tags to check potential found wheel candidates against
+        self.valid_tags = get_supported(
+            versions=versions,
+            platform=platform,
+            abi=abi,
+            impl=implementation,
+        )
+
+        # If we don't have TLS enabled, then WARN if anyplace we're looking
+        # relies on TLS.
+        if not HAS_TLS:
+            for link in itertools.chain(self.index_urls, self.find_links):
+                parsed = urllib_parse.urlparse(link)
+                if parsed.scheme == "https":
+                    logger.warning(
+                        "pip is configured with locations that require "
+                        "TLS/SSL, however the ssl module in Python is not "
+                        "available."
+                    )
+                    break
+
+    def add_dependency_links(self, links):
+        # # FIXME: this shouldn't be global list this, it should only
+        # # apply to requirements of the package that specifies the
+        # # dependency_links value
+        # # FIXME: also, we should track comes_from (i.e., use Link)
+        if self.process_dependency_links:
+            warnings.warn(
+                "Dependency Links processing has been deprecated and will be "
+                "removed in a future release.",
+                RemovedInPip10Warning,
+            )
+            self.dependency_links.extend(links)
+
+    @staticmethod
+    def _sort_locations(locations, expand_dir=False):
+        """
+        Sort locations into "files" (archives) and "urls", and return
+        a pair of lists (files,urls)
+        """
+        files = []
+        urls = []
+
+        # puts the url for the given file path into the appropriate list
+        def sort_path(path):
+            url = path_to_url(path)
+            if mimetypes.guess_type(url, strict=False)[0] == 'text/html':
+                urls.append(url)
+            else:
+                files.append(url)
+
+        for url in locations:
+
+            is_local_path = os.path.exists(url)
+            is_file_url = url.startswith('file:')
+
+            if is_local_path or is_file_url:
+                if is_local_path:
+                    path = url
+                else:
+                    path = url_to_path(url)
+                if os.path.isdir(path):
+                    if expand_dir:
+                        path = os.path.realpath(path)
+                        for item in os.listdir(path):
+                            sort_path(os.path.join(path, item))
+                    elif is_file_url:
+                        urls.append(url)
+                elif os.path.isfile(path):
+                    sort_path(path)
+                else:
+                    logger.warning(
+                        "Url '%s' is ignored: it is neither a file "
+                        "nor a directory.", url)
+            elif is_url(url):
+                # Only add url with clear scheme
+                urls.append(url)
+            else:
+                logger.warning(
+                    "Url '%s' is ignored. It is either a non-existing "
+                    "path or lacks a specific scheme.", url)
+
+        return files, urls
+
+    def _candidate_sort_key(self, candidate):
+        """
+        Function used to generate link sort key for link tuples.
+        The greater the return value, the more preferred it is.
+        If not finding wheels, then sorted by version only.
+        If finding wheels, then the sort order is by version, then:
+          1. existing installs
+          2. wheels ordered via Wheel.support_index_min(self.valid_tags)
+          3. source archives
+        Note: it was considered to embed this logic into the Link
+              comparison operators, but then different sdist links
+              with the same version, would have to be considered equal
+        """
+        support_num = len(self.valid_tags)
+        if candidate.location.is_wheel:
+            # can raise InvalidWheelFilename
+            wheel = Wheel(candidate.location.filename)
+            if not wheel.supported(self.valid_tags):
+                raise UnsupportedWheel(
+                    "%s is not a supported wheel for this platform. It "
+                    "can't be sorted." % wheel.filename
+                )
+            pri = -(wheel.support_index_min(self.valid_tags))
+        else:  # sdist
+            pri = -(support_num)
+        return (candidate.version, pri)
+
+    def _validate_secure_origin(self, logger, location):
+        # Determine if this url used a secure transport mechanism
+        parsed = urllib_parse.urlparse(str(location))
+        origin = (parsed.scheme, parsed.hostname, parsed.port)
+
+        # The protocol to use to see if the protocol matches.
+        # Don't count the repository type as part of the protocol: in
+        # cases such as "git+ssh", only use "ssh". (I.e., Only verify against
+        # the last scheme.)
+        protocol = origin[0].rsplit('+', 1)[-1]
+
+        # Determine if our origin is a secure origin by looking through our
+        # hardcoded list of secure origins, as well as any additional ones
+        # configured on this PackageFinder instance.
+        for secure_origin in (SECURE_ORIGINS + self.secure_origins):
+            if protocol != secure_origin[0] and secure_origin[0] != "*":
+                continue
+
+            try:
+                # We need to do this decode dance to ensure that we have a
+                # unicode object, even on Python 2.x.
+                addr = ipaddress.ip_address(
+                    origin[1]
+                    if (
+                        isinstance(origin[1], six.text_type) or
+                        origin[1] is None
+                    )
+                    else origin[1].decode("utf8")
+                )
+                network = ipaddress.ip_network(
+                    secure_origin[1]
+                    if isinstance(secure_origin[1], six.text_type)
+                    else secure_origin[1].decode("utf8")
+                )
+            except ValueError:
+                # We don't have both a valid address or a valid network, so
+                # we'll check this origin against hostnames.
+                if (origin[1] and
+                        origin[1].lower() != secure_origin[1].lower() and
+                        secure_origin[1] != "*"):
+                    continue
+            else:
+                # We have a valid address and network, so see if the address
+                # is contained within the network.
+                if addr not in network:
+                    continue
+
+            # Check to see if the port patches
+            if (origin[2] != secure_origin[2] and
+                    secure_origin[2] != "*" and
+                    secure_origin[2] is not None):
+                continue
+
+            # If we've gotten here, then this origin matches the current
+            # secure origin and we should return True
+            return True
+
+        # If we've gotten to this point, then the origin isn't secure and we
+        # will not accept it as a valid location to search. We will however
+        # log a warning that we are ignoring it.
+        logger.warning(
+            "The repository located at %s is not a trusted or secure host and "
+            "is being ignored. If this repository is available via HTTPS it "
+            "is recommended to use HTTPS instead, otherwise you may silence "
+            "this warning and allow it anyways with '--trusted-host %s'.",
+            parsed.hostname,
+            parsed.hostname,
+        )
+
+        return False
+
+    def _get_index_urls_locations(self, project_name):
+        """Returns the locations found via self.index_urls
+
+        Checks the url_name on the main (first in the list) index and
+        use this url_name to produce all locations
+        """
+
+        def mkurl_pypi_url(url):
+            loc = posixpath.join(
+                url,
+                urllib_parse.quote(canonicalize_name(project_name)))
+            # For maximum compatibility with easy_install, ensure the path
+            # ends in a trailing slash.  Although this isn't in the spec
+            # (and PyPI can handle it without the slash) some other index
+            # implementations might break if they relied on easy_install's
+            # behavior.
+            if not loc.endswith('/'):
+                loc = loc + '/'
+            return loc
+
+        return [mkurl_pypi_url(url) for url in self.index_urls]
+
+    def find_all_candidates(self, project_name):
+        """Find all available InstallationCandidate for project_name
+
+        This checks index_urls, find_links and dependency_links.
+        All versions found are returned as an InstallationCandidate list.
+
+        See _link_package_versions for details on which files are accepted
+        """
+        index_locations = self._get_index_urls_locations(project_name)
+        index_file_loc, index_url_loc = self._sort_locations(index_locations)
+        fl_file_loc, fl_url_loc = self._sort_locations(
+            self.find_links, expand_dir=True)
+        dep_file_loc, dep_url_loc = self._sort_locations(self.dependency_links)
+
+        file_locations = (
+            Link(url) for url in itertools.chain(
+                index_file_loc, fl_file_loc, dep_file_loc)
+        )
+
+        # We trust every url that the user has given us whether it was given
+        #   via --index-url or --find-links
+        # We explicitly do not trust links that came from dependency_links
+        # We want to filter out any thing which does not have a secure origin.
+        url_locations = [
+            link for link in itertools.chain(
+                (Link(url) for url in index_url_loc),
+                (Link(url) for url in fl_url_loc),
+                (Link(url) for url in dep_url_loc),
+            )
+            if self._validate_secure_origin(logger, link)
+        ]
+
+        logger.debug('%d location(s) to search for versions of %s:',
+                     len(url_locations), project_name)
+
+        for location in url_locations:
+            logger.debug('* %s', location)
+
+        canonical_name = canonicalize_name(project_name)
+        formats = fmt_ctl_formats(self.format_control, canonical_name)
+        search = Search(project_name, canonical_name, formats)
+        find_links_versions = self._package_versions(
+            # We trust every directly linked archive in find_links
+            (Link(url, '-f') for url in self.find_links),
+            search
+        )
+
+        page_versions = []
+        for page in self._get_pages(url_locations, project_name):
+            logger.debug('Analyzing links from page %s', page.url)
+            with indent_log():
+                page_versions.extend(
+                    self._package_versions(page.links, search)
+                )
+
+        dependency_versions = self._package_versions(
+            (Link(url) for url in self.dependency_links), search
+        )
+        if dependency_versions:
+            logger.debug(
+                'dependency_links found: %s',
+                ', '.join([
+                    version.location.url for version in dependency_versions
+                ])
+            )
+
+        file_versions = self._package_versions(file_locations, search)
+        if file_versions:
+            file_versions.sort(reverse=True)
+            logger.debug(
+                'Local files found: %s',
+                ', '.join([
+                    url_to_path(candidate.location.url)
+                    for candidate in file_versions
+                ])
+            )
+
+        # This is an intentional priority ordering
+        return (
+            file_versions + find_links_versions + page_versions +
+            dependency_versions
+        )
+
+    def find_requirement(self, req, upgrade):
+        """Try to find a Link matching req
+
+        Expects req, an InstallRequirement and upgrade, a boolean
+        Returns a Link if found,
+        Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
+        """
+        all_candidates = self.find_all_candidates(req.name)
+
+        # Filter out anything which doesn't match our specifier
+        compatible_versions = set(
+            req.specifier.filter(
+                # We turn the version object into a str here because otherwise
+                # when we're debundled but setuptools isn't, Python will see
+                # packaging.version.Version and
+                # pkg_resources._vendor.packaging.version.Version as different
+                # types. This way we'll use a str as a common data interchange
+                # format. If we stop using the pkg_resources provided specifier
+                # and start using our own, we can drop the cast to str().
+                [str(c.version) for c in all_candidates],
+                prereleases=(
+                    self.allow_all_prereleases
+                    if self.allow_all_prereleases else None
+                ),
+            )
+        )
+        applicable_candidates = [
+            # Again, converting to str to deal with debundling.
+            c for c in all_candidates if str(c.version) in compatible_versions
+        ]
+
+        if applicable_candidates:
+            best_candidate = max(applicable_candidates,
+                                 key=self._candidate_sort_key)
+        else:
+            best_candidate = None
+
+        if req.satisfied_by is not None:
+            installed_version = parse_version(req.satisfied_by.version)
+        else:
+            installed_version = None
+
+        if installed_version is None and best_candidate is None:
+            logger.critical(
+                'Could not find a version that satisfies the requirement %s '
+                '(from versions: %s)',
+                req,
+                ', '.join(
+                    sorted(
+                        set(str(c.version) for c in all_candidates),
+                        key=parse_version,
+                    )
+                )
+            )
+
+            raise DistributionNotFound(
+                'No matching distribution found for %s' % req
+            )
+
+        best_installed = False
+        if installed_version and (
+                best_candidate is None or
+                best_candidate.version <= installed_version):
+            best_installed = True
+
+        if not upgrade and installed_version is not None:
+            if best_installed:
+                logger.debug(
+                    'Existing installed version (%s) is most up-to-date and '
+                    'satisfies requirement',
+                    installed_version,
+                )
+            else:
+                logger.debug(
+                    'Existing installed version (%s) satisfies requirement '
+                    '(most up-to-date version is %s)',
+                    installed_version,
+                    best_candidate.version,
+                )
+            return None
+
+        if best_installed:
+            # We have an existing version, and its the best version
+            logger.debug(
+                'Installed version (%s) is most up-to-date (past versions: '
+                '%s)',
+                installed_version,
+                ', '.join(sorted(compatible_versions, key=parse_version)) or
+                "none",
+            )
+            raise BestVersionAlreadyInstalled
+
+        logger.debug(
+            'Using version %s (newest of versions: %s)',
+            best_candidate.version,
+            ', '.join(sorted(compatible_versions, key=parse_version))
+        )
+        return best_candidate.location
+
+    def _get_pages(self, locations, project_name):
+        """
+        Yields (page, page_url) from the given locations, skipping
+        locations that have errors.
+        """
+        seen = set()
+        for location in locations:
+            if location in seen:
+                continue
+            seen.add(location)
+
+            page = self._get_page(location)
+            if page is None:
+                continue
+
+            yield page
+
+    _py_version_re = re.compile(r'-py([123]\.?[0-9]?)$')
+
+    def _sort_links(self, links):
+        """
+        Returns elements of links in order, non-egg links first, egg links
+        second, while eliminating duplicates
+        """
+        eggs, no_eggs = [], []
+        seen = set()
+        for link in links:
+            if link not in seen:
+                seen.add(link)
+                if link.egg_fragment:
+                    eggs.append(link)
+                else:
+                    no_eggs.append(link)
+        return no_eggs + eggs
+
+    def _package_versions(self, links, search):
+        result = []
+        for link in self._sort_links(links):
+            v = self._link_package_versions(link, search)
+            if v is not None:
+                result.append(v)
+        return result
+
+    def _log_skipped_link(self, link, reason):
+        if link not in self.logged_links:
+            logger.debug('Skipping link %s; %s', link, reason)
+            self.logged_links.add(link)
+
+    def _link_package_versions(self, link, search):
+        """Return an InstallationCandidate or None"""
+        version = None
+        if link.egg_fragment:
+            egg_info = link.egg_fragment
+            ext = link.ext
+        else:
+            egg_info, ext = link.splitext()
+            if not ext:
+                self._log_skipped_link(link, 'not a file')
+                return
+            if ext not in SUPPORTED_EXTENSIONS:
+                self._log_skipped_link(
+                    link, 'unsupported archive format: %s' % ext)
+                return
+            if "binary" not in search.formats and ext == wheel_ext:
+                self._log_skipped_link(
+                    link, 'No binaries permitted for %s' % search.supplied)
+                return
+            if "macosx10" in link.path and ext == '.zip':
+                self._log_skipped_link(link, 'macosx10 one')
+                return
+            if ext == wheel_ext:
+                try:
+                    wheel = Wheel(link.filename)
+                except InvalidWheelFilename:
+                    self._log_skipped_link(link, 'invalid wheel filename')
+                    return
+                if canonicalize_name(wheel.name) != search.canonical:
+                    self._log_skipped_link(
+                        link, 'wrong project name (not %s)' % search.supplied)
+                    return
+
+                if not wheel.supported(self.valid_tags):
+                    self._log_skipped_link(
+                        link, 'it is not compatible with this Python')
+                    return
+
+                version = wheel.version
+
+        # This should be up by the search.ok_binary check, but see issue 2700.
+        if "source" not in search.formats and ext != wheel_ext:
+            self._log_skipped_link(
+                link, 'No sources permitted for %s' % search.supplied)
+            return
+
+        if not version:
+            version = egg_info_matches(egg_info, search.supplied, link)
+        if version is None:
+            self._log_skipped_link(
+                link, 'wrong project name (not %s)' % search.supplied)
+            return
+
+        match = self._py_version_re.search(version)
+        if match:
+            version = version[:match.start()]
+            py_version = match.group(1)
+            if py_version != sys.version[:3]:
+                self._log_skipped_link(
+                    link, 'Python version is incorrect')
+                return
+        try:
+            support_this_python = check_requires_python(link.requires_python)
+        except specifiers.InvalidSpecifier:
+            logger.debug("Package %s has an invalid Requires-Python entry: %s",
+                         link.filename, link.requires_python)
+            support_this_python = True
+
+        if not support_this_python:
+            logger.debug("The package %s is incompatible with the python"
+                         "version in use. Acceptable python versions are:%s",
+                         link, link.requires_python)
+            return
+        logger.debug('Found link %s, version: %s', link, version)
+
+        return InstallationCandidate(search.supplied, version, link)
+
+    def _get_page(self, link):
+        return HTMLPage.get_page(link, session=self.session)
+
+
+def egg_info_matches(
+        egg_info, search_name, link,
+        _egg_info_re=re.compile(r'([a-z0-9_.]+)-([a-z0-9_.!+-]+)', re.I)):
+    """Pull the version part out of a string.
+
+    :param egg_info: The string to parse. E.g. foo-2.1
+    :param search_name: The name of the package this belongs to. None to
+        infer the name. Note that this cannot unambiguously parse strings
+        like foo-2-2 which might be foo, 2-2 or foo-2, 2.
+    :param link: The link the string came from, for logging on failure.
+    """
+    match = _egg_info_re.search(egg_info)
+    if not match:
+        logger.debug('Could not parse version from link: %s', link)
+        return None
+    if search_name is None:
+        full_match = match.group(0)
+        return full_match[full_match.index('-'):]
+    name = match.group(0).lower()
+    # To match the "safe" name that pkg_resources creates:
+    name = name.replace('_', '-')
+    # project name and version must be separated by a dash
+    look_for = search_name.lower() + "-"
+    if name.startswith(look_for):
+        return match.group(0)[len(look_for):]
+    else:
+        return None
+
+
+class HTMLPage(object):
+    """Represents one page, along with its URL"""
+
+    def __init__(self, content, url, headers=None):
+        # Determine if we have any encoding information in our headers
+        encoding = None
+        if headers and "Content-Type" in headers:
+            content_type, params = cgi.parse_header(headers["Content-Type"])
+
+            if "charset" in params:
+                encoding = params['charset']
+
+        self.content = content
+        self.parsed = html5lib.parse(
+            self.content,
+            transport_encoding=encoding,
+            namespaceHTMLElements=False,
+        )
+        self.url = url
+        self.headers = headers
+
+    def __str__(self):
+        return self.url
+
+    @classmethod
+    def get_page(cls, link, skip_archives=True, session=None):
+        if session is None:
+            raise TypeError(
+                "get_page() missing 1 required keyword argument: 'session'"
+            )
+
+        url = link.url
+        url = url.split('#', 1)[0]
+
+        # Check for VCS schemes that do not support lookup as web pages.
+        from pip.vcs import VcsSupport
+        for scheme in VcsSupport.schemes:
+            if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
+                logger.debug('Cannot look at %s URL %s', scheme, link)
+                return None
+
+        try:
+            if skip_archives:
+                filename = link.filename
+                for bad_ext in ARCHIVE_EXTENSIONS:
+                    if filename.endswith(bad_ext):
+                        content_type = cls._get_content_type(
+                            url, session=session,
+                        )
+                        if content_type.lower().startswith('text/html'):
+                            break
+                        else:
+                            logger.debug(
+                                'Skipping page %s because of Content-Type: %s',
+                                link,
+                                content_type,
+                            )
+                            return
+
+            logger.debug('Getting page %s', url)
+
+            # Tack index.html onto file:// URLs that point to directories
+            (scheme, netloc, path, params, query, fragment) = \
+                urllib_parse.urlparse(url)
+            if (scheme == 'file' and
+                    os.path.isdir(urllib_request.url2pathname(path))):
+                # add trailing slash if not present so urljoin doesn't trim
+                # final segment
+                if not url.endswith('/'):
+                    url += '/'
+                url = urllib_parse.urljoin(url, 'index.html')
+                logger.debug(' file: URL is directory, getting %s', url)
+
+            resp = session.get(
+                url,
+                headers={
+                    "Accept": "text/html",
+                    "Cache-Control": "max-age=600",
+                },
+            )
+            resp.raise_for_status()
+
+            # The check for archives above only works if the url ends with
+            # something that looks like an archive. However that is not a
+            # requirement of an url. Unless we issue a HEAD request on every
+            # url we cannot know ahead of time for sure if something is HTML
+            # or not. However we can check after we've downloaded it.
+            content_type = resp.headers.get('Content-Type', 'unknown')
+            if not content_type.lower().startswith("text/html"):
+                logger.debug(
+                    'Skipping page %s because of Content-Type: %s',
+                    link,
+                    content_type,
+                )
+                return
+
+            inst = cls(resp.content, resp.url, resp.headers)
+        except requests.HTTPError as exc:
+            cls._handle_fail(link, exc, url)
+        except SSLError as exc:
+            reason = ("There was a problem confirming the ssl certificate: "
+                      "%s" % exc)
+            cls._handle_fail(link, reason, url, meth=logger.info)
+        except requests.ConnectionError as exc:
+            cls._handle_fail(link, "connection error: %s" % exc, url)
+        except requests.Timeout:
+            cls._handle_fail(link, "timed out", url)
+        else:
+            return inst
+
+    @staticmethod
+    def _handle_fail(link, reason, url, meth=None):
+        if meth is None:
+            meth = logger.debug
+
+        meth("Could not fetch URL %s: %s - skipping", link, reason)
+
+    @staticmethod
+    def _get_content_type(url, session):
+        """Get the Content-Type of the given url, using a HEAD request"""
+        scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
+        if scheme not in ('http', 'https'):
+            # FIXME: some warning or something?
+            # assertion error?
+            return ''
+
+        resp = session.head(url, allow_redirects=True)
+        resp.raise_for_status()
+
+        return resp.headers.get("Content-Type", "")
+
+    @cached_property
+    def base_url(self):
+        bases = [
+            x for x in self.parsed.findall(".//base")
+            if x.get("href") is not None
+        ]
+        if bases and bases[0].get("href"):
+            return bases[0].get("href")
+        else:
+            return self.url
+
+    @property
+    def links(self):
+        """Yields all links in the page"""
+        for anchor in self.parsed.findall(".//a"):
+            if anchor.get("href"):
+                href = anchor.get("href")
+                url = self.clean_link(
+                    urllib_parse.urljoin(self.base_url, href)
+                )
+                pyrequire = anchor.get('data-requires-python')
+                pyrequire = unescape(pyrequire) if pyrequire else None
+                yield Link(url, self, requires_python=pyrequire)
+
+    _clean_re = re.compile(r'[^a-z0-9$&+,/:;=?@.#%_\\|-]', re.I)
+
+    def clean_link(self, url):
+        """Makes sure a link is fully encoded.  That is, if a ' ' shows up in
+        the link, it will be rewritten to %20 (while not over-quoting
+        % or other characters)."""
+        return self._clean_re.sub(
+            lambda match: '%%%2x' % ord(match.group(0)), url)
+
+
+class Link(object):
+
+    def __init__(self, url, comes_from=None, requires_python=None):
+        """
+        Object representing a parsed link from https://pypi.python.org/simple/*
+
+        url:
+            url of the resource pointed to (href of the link)
+        comes_from:
+            instance of HTMLPage where the link was found, or string.
+        requires_python:
+            String containing the `Requires-Python` metadata field, specified
+            in PEP 345. This may be specified by a data-requires-python
+            attribute in the HTML link tag, as described in PEP 503.
+        """
+
+        # url can be a UNC windows share
+        if url.startswith('\\\\'):
+            url = path_to_url(url)
+
+        self.url = url
+        self.comes_from = comes_from
+        self.requires_python = requires_python if requires_python else None
+
+    def __str__(self):
+        if self.requires_python:
+            rp = ' (requires-python:%s)' % self.requires_python
+        else:
+            rp = ''
+        if self.comes_from:
+            return '%s (from %s)%s' % (self.url, self.comes_from, rp)
+        else:
+            return str(self.url)
+
+    def __repr__(self):
+        return '<Link %s>' % self
+
+    def __eq__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url == other.url
+
+    def __ne__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url != other.url
+
+    def __lt__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url < other.url
+
+    def __le__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url <= other.url
+
+    def __gt__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url > other.url
+
+    def __ge__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url >= other.url
+
+    def __hash__(self):
+        return hash(self.url)
+
+    @property
+    def filename(self):
+        _, netloc, path, _, _ = urllib_parse.urlsplit(self.url)
+        name = posixpath.basename(path.rstrip('/')) or netloc
+        name = urllib_parse.unquote(name)
+        assert name, ('URL %r produced no filename' % self.url)
+        return name
+
+    @property
+    def scheme(self):
+        return urllib_parse.urlsplit(self.url)[0]
+
+    @property
+    def netloc(self):
+        return urllib_parse.urlsplit(self.url)[1]
+
+    @property
+    def path(self):
+        return urllib_parse.unquote(urllib_parse.urlsplit(self.url)[2])
+
+    def splitext(self):
+        return splitext(posixpath.basename(self.path.rstrip('/')))
+
+    @property
+    def ext(self):
+        return self.splitext()[1]
+
+    @property
+    def url_without_fragment(self):
+        scheme, netloc, path, query, fragment = urllib_parse.urlsplit(self.url)
+        return urllib_parse.urlunsplit((scheme, netloc, path, query, None))
+
+    _egg_fragment_re = re.compile(r'[#&]egg=([^&]*)')
+
+    @property
+    def egg_fragment(self):
+        match = self._egg_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)')
+
+    @property
+    def subdirectory_fragment(self):
+        match = self._subdirectory_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _hash_re = re.compile(
+        r'(sha1|sha224|sha384|sha256|sha512|md5)=([a-f0-9]+)'
+    )
+
+    @property
+    def hash(self):
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(2)
+        return None
+
+    @property
+    def hash_name(self):
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(1)
+        return None
+
+    @property
+    def show_url(self):
+        return posixpath.basename(self.url.split('#', 1)[0].split('?', 1)[0])
+
+    @property
+    def is_wheel(self):
+        return self.ext == wheel_ext
+
+    @property
+    def is_artifact(self):
+        """
+        Determines if this points to an actual artifact (e.g. a tarball) or if
+        it points to an "abstract" thing like a path or a VCS location.
+        """
+        from pip.vcs import vcs
+
+        if self.scheme in vcs.all_schemes:
+            return False
+
+        return True
+
+
+FormatControl = namedtuple('FormatControl', 'no_binary only_binary')
+"""This object has two fields, no_binary and only_binary.
+
+If a field is falsy, it isn't set. If it is {':all:'}, it should match all
+packages except those listed in the other field. Only one field can be set
+to {':all:'} at a time. The rest of the time exact package name matches
+are listed, with any given package only showing up in one field at a time.
+"""
+
+
+def fmt_ctl_handle_mutual_exclude(value, target, other):
+    new = value.split(',')
+    while ':all:' in new:
+        other.clear()
+        target.clear()
+        target.add(':all:')
+        del new[:new.index(':all:') + 1]
+        if ':none:' not in new:
+            # Without a none, we want to discard everything as :all: covers it
+            return
+    for name in new:
+        if name == ':none:':
+            target.clear()
+            continue
+        name = canonicalize_name(name)
+        other.discard(name)
+        target.add(name)
+
+
+def fmt_ctl_formats(fmt_ctl, canonical_name):
+    result = set(["binary", "source"])
+    if canonical_name in fmt_ctl.only_binary:
+        result.discard('source')
+    elif canonical_name in fmt_ctl.no_binary:
+        result.discard('binary')
+    elif ':all:' in fmt_ctl.only_binary:
+        result.discard('source')
+    elif ':all:' in fmt_ctl.no_binary:
+        result.discard('binary')
+    return frozenset(result)
+
+
+def fmt_ctl_no_binary(fmt_ctl):
+    fmt_ctl_handle_mutual_exclude(
+        ':all:', fmt_ctl.no_binary, fmt_ctl.only_binary)
+
+
+def fmt_ctl_no_use_wheel(fmt_ctl):
+    fmt_ctl_no_binary(fmt_ctl)
+    warnings.warn(
+        '--no-use-wheel is deprecated and will be removed in the future. '
+        ' Please use --no-binary :all: instead.', RemovedInPip10Warning,
+        stacklevel=2)
+
+
+Search = namedtuple('Search', 'supplied canonical formats')
+"""Capture key aspects of a search.
+
+:attribute supplied: The user supplied package.
+:attribute canonical: The canonical package name.
+:attribute formats: The formats allowed for this package. Should be a set
+    with 'binary' or 'source' or both in it.
+"""
diff --git a/venv/lib/python3.5/site-packages/pip/locations.py b/venv/lib/python3.5/site-packages/pip/locations.py
new file mode 100644
index 0000000..e598ef1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/locations.py
@@ -0,0 +1,182 @@
+"""Locations where we look for configs, install stuff, etc"""
+from __future__ import absolute_import
+
+import os
+import os.path
+import site
+import sys
+
+from distutils import sysconfig
+from distutils.command.install import install, SCHEME_KEYS  # noqa
+
+from pip.compat import WINDOWS, expanduser
+from pip.utils import appdirs
+
+
+# Application Directories
+USER_CACHE_DIR = appdirs.user_cache_dir("pip")
+
+
+DELETE_MARKER_MESSAGE = '''\
+This file is placed here by pip to indicate the source was put
+here by pip.
+
+Once this package is successfully installed this source code will be
+deleted (unless you remove this file).
+'''
+PIP_DELETE_MARKER_FILENAME = 'pip-delete-this-directory.txt'
+
+
+def write_delete_marker_file(directory):
+    """
+    Write the pip delete marker file into this directory.
+    """
+    filepath = os.path.join(directory, PIP_DELETE_MARKER_FILENAME)
+    with open(filepath, 'w') as marker_fp:
+        marker_fp.write(DELETE_MARKER_MESSAGE)
+
+
+def running_under_virtualenv():
+    """
+    Return True if we're running inside a virtualenv, False otherwise.
+
+    """
+    if hasattr(sys, 'real_prefix'):
+        return True
+    elif sys.prefix != getattr(sys, "base_prefix", sys.prefix):
+        return True
+
+    return False
+
+
+def virtualenv_no_global():
+    """
+    Return True if in a venv and no system site packages.
+    """
+    # this mirrors the logic in virtualenv.py for locating the
+    # no-global-site-packages.txt file
+    site_mod_dir = os.path.dirname(os.path.abspath(site.__file__))
+    no_global_file = os.path.join(site_mod_dir, 'no-global-site-packages.txt')
+    if running_under_virtualenv() and os.path.isfile(no_global_file):
+        return True
+
+
+if running_under_virtualenv():
+    src_prefix = os.path.join(sys.prefix, 'src')
+else:
+    # FIXME: keep src in cwd for now (it is not a temporary folder)
+    try:
+        src_prefix = os.path.join(os.getcwd(), 'src')
+    except OSError:
+        # In case the current working directory has been renamed or deleted
+        sys.exit(
+            "The folder you are executing pip from can no longer be found."
+        )
+
+# under macOS + virtualenv sys.prefix is not properly resolved
+# it is something like /path/to/python/bin/..
+# Note: using realpath due to tmp dirs on OSX being symlinks
+src_prefix = os.path.abspath(src_prefix)
+
+# FIXME doesn't account for venv linked to global site-packages
+
+site_packages = sysconfig.get_python_lib()
+user_site = site.USER_SITE
+user_dir = expanduser('~')
+if WINDOWS:
+    bin_py = os.path.join(sys.prefix, 'Scripts')
+    bin_user = os.path.join(user_site, 'Scripts')
+    # buildout uses 'bin' on Windows too?
+    if not os.path.exists(bin_py):
+        bin_py = os.path.join(sys.prefix, 'bin')
+        bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.ini'
+
+    legacy_storage_dir = os.path.join(user_dir, 'pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+else:
+    bin_py = os.path.join(sys.prefix, 'bin')
+    bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.conf'
+
+    legacy_storage_dir = os.path.join(user_dir, '.pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+
+    # Forcing to use /usr/local/bin for standard macOS framework installs
+    # Also log to ~/Library/Logs/ for use with the Console.app log viewer
+    if sys.platform[:6] == 'darwin' and sys.prefix[:16] == '/System/Library/':
+        bin_py = '/usr/local/bin'
+
+site_config_files = [
+    os.path.join(path, config_basename)
+    for path in appdirs.site_config_dirs('pip')
+]
+
+
+def distutils_scheme(dist_name, user=False, home=None, root=None,
+                     isolated=False, prefix=None):
+    """
+    Return a distutils install scheme
+    """
+    from distutils.dist import Distribution
+
+    scheme = {}
+
+    if isolated:
+        extra_dist_args = {"script_args": ["--no-user-cfg"]}
+    else:
+        extra_dist_args = {}
+    dist_args = {'name': dist_name}
+    dist_args.update(extra_dist_args)
+
+    d = Distribution(dist_args)
+    d.parse_config_files()
+    i = d.get_command_obj('install', create=True)
+    # NOTE: setting user or home has the side-effect of creating the home dir
+    # or user base for installations during finalize_options()
+    # ideally, we'd prefer a scheme class that has no side-effects.
+    assert not (user and prefix), "user={0} prefix={1}".format(user, prefix)
+    i.user = user or i.user
+    if user:
+        i.prefix = ""
+    i.prefix = prefix or i.prefix
+    i.home = home or i.home
+    i.root = root or i.root
+    i.finalize_options()
+    for key in SCHEME_KEYS:
+        scheme[key] = getattr(i, 'install_' + key)
+
+    # install_lib specified in setup.cfg should install *everything*
+    # into there (i.e. it takes precedence over both purelib and
+    # platlib).  Note, i.install_lib is *always* set after
+    # finalize_options(); we only want to override here if the user
+    # has explicitly requested it hence going back to the config
+    if 'install_lib' in d.get_option_dict('install'):
+        scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
+
+    if running_under_virtualenv():
+        scheme['headers'] = os.path.join(
+            sys.prefix,
+            'include',
+            'site',
+            'python' + sys.version[:3],
+            dist_name,
+        )
+
+        if root is not None:
+            path_no_drive = os.path.splitdrive(
+                os.path.abspath(scheme["headers"]))[1]
+            scheme["headers"] = os.path.join(
+                root,
+                path_no_drive[1:],
+            )
+
+    return scheme
diff --git a/venv/lib/python3.5/site-packages/pip/models/__init__.py b/venv/lib/python3.5/site-packages/pip/models/__init__.py
new file mode 100644
index 0000000..1d727d7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/models/__init__.py
@@ -0,0 +1,4 @@
+from pip.models.index import Index, PyPI
+
+
+__all__ = ["Index", "PyPI"]
diff --git a/venv/lib/python3.5/site-packages/pip/models/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/models/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..7ae5ef5
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diff --git a/venv/lib/python3.5/site-packages/pip/models/__pycache__/index.cpython-35.pyc b/venv/lib/python3.5/site-packages/pip/models/__pycache__/index.cpython-35.pyc
new file mode 100644
index 0000000..400c2bf
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pip/models/__pycache__/index.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pip/models/index.py b/venv/lib/python3.5/site-packages/pip/models/index.py
new file mode 100644
index 0000000..be99119
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/models/index.py
@@ -0,0 +1,16 @@
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+
+class Index(object):
+    def __init__(self, url):
+        self.url = url
+        self.netloc = urllib_parse.urlsplit(url).netloc
+        self.simple_url = self.url_to_path('simple')
+        self.pypi_url = self.url_to_path('pypi')
+        self.pip_json_url = self.url_to_path('pypi/pip/json')
+
+    def url_to_path(self, path):
+        return urllib_parse.urljoin(self.url, path)
+
+
+PyPI = Index('https://pypi.python.org/')
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diff --git a/venv/lib/python3.5/site-packages/pip/operations/check.py b/venv/lib/python3.5/site-packages/pip/operations/check.py
new file mode 100644
index 0000000..2cf67aa
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/operations/check.py
@@ -0,0 +1,49 @@
+
+
+def check_requirements(installed_dists):
+    missing_reqs_dict = {}
+    incompatible_reqs_dict = {}
+
+    for dist in installed_dists:
+        key = '%s==%s' % (dist.project_name, dist.version)
+
+        missing_reqs = list(get_missing_reqs(dist, installed_dists))
+        if missing_reqs:
+            missing_reqs_dict[key] = missing_reqs
+
+        incompatible_reqs = list(get_incompatible_reqs(
+            dist, installed_dists))
+        if incompatible_reqs:
+            incompatible_reqs_dict[key] = incompatible_reqs
+
+    return (missing_reqs_dict, incompatible_reqs_dict)
+
+
+def get_missing_reqs(dist, installed_dists):
+    """Return all of the requirements of `dist` that aren't present in
+    `installed_dists`.
+
+    """
+    installed_names = set(d.project_name.lower() for d in installed_dists)
+    missing_requirements = set()
+
+    for requirement in dist.requires():
+        if requirement.project_name.lower() not in installed_names:
+            missing_requirements.add(requirement)
+            yield requirement
+
+
+def get_incompatible_reqs(dist, installed_dists):
+    """Return all of the requirements of `dist` that are present in
+    `installed_dists`, but have incompatible versions.
+
+    """
+    installed_dists_by_name = {}
+    for installed_dist in installed_dists:
+        installed_dists_by_name[installed_dist.project_name] = installed_dist
+
+    for requirement in dist.requires():
+        present_dist = installed_dists_by_name.get(requirement.project_name)
+
+        if present_dist and present_dist not in requirement:
+            yield (requirement, present_dist)
diff --git a/venv/lib/python3.5/site-packages/pip/operations/freeze.py b/venv/lib/python3.5/site-packages/pip/operations/freeze.py
new file mode 100644
index 0000000..920c2c1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/operations/freeze.py
@@ -0,0 +1,132 @@
+from __future__ import absolute_import
+
+import logging
+import re
+
+import pip
+from pip.req import InstallRequirement
+from pip.req.req_file import COMMENT_RE
+from pip.utils import get_installed_distributions
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.pkg_resources import RequirementParseError
+
+
+logger = logging.getLogger(__name__)
+
+
+def freeze(
+        requirement=None,
+        find_links=None, local_only=None, user_only=None, skip_regex=None,
+        default_vcs=None,
+        isolated=False,
+        wheel_cache=None,
+        skip=()):
+    find_links = find_links or []
+    skip_match = None
+
+    if skip_regex:
+        skip_match = re.compile(skip_regex).search
+
+    dependency_links = []
+
+    for dist in pkg_resources.working_set:
+        if dist.has_metadata('dependency_links.txt'):
+            dependency_links.extend(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+    for link in find_links:
+        if '#egg=' in link:
+            dependency_links.append(link)
+    for link in find_links:
+        yield '-f %s' % link
+    installations = {}
+    for dist in get_installed_distributions(local_only=local_only,
+                                            skip=(),
+                                            user_only=user_only):
+        try:
+            req = pip.FrozenRequirement.from_dist(
+                dist,
+                dependency_links
+            )
+        except RequirementParseError:
+            logger.warning(
+                "Could not parse requirement: %s",
+                dist.project_name
+            )
+            continue
+        installations[req.name] = req
+
+    if requirement:
+        # the options that don't get turned into an InstallRequirement
+        # should only be emitted once, even if the same option is in multiple
+        # requirements files, so we need to keep track of what has been emitted
+        # so that we don't emit it again if it's seen again
+        emitted_options = set()
+        for req_file_path in requirement:
+            with open(req_file_path) as req_file:
+                for line in req_file:
+                    if (not line.strip() or
+                            line.strip().startswith('#') or
+                            (skip_match and skip_match(line)) or
+                            line.startswith((
+                                '-r', '--requirement',
+                                '-Z', '--always-unzip',
+                                '-f', '--find-links',
+                                '-i', '--index-url',
+                                '--pre',
+                                '--trusted-host',
+                                '--process-dependency-links',
+                                '--extra-index-url'))):
+                        line = line.rstrip()
+                        if line not in emitted_options:
+                            emitted_options.add(line)
+                            yield line
+                        continue
+
+                    if line.startswith('-e') or line.startswith('--editable'):
+                        if line.startswith('-e'):
+                            line = line[2:].strip()
+                        else:
+                            line = line[len('--editable'):].strip().lstrip('=')
+                        line_req = InstallRequirement.from_editable(
+                            line,
+                            default_vcs=default_vcs,
+                            isolated=isolated,
+                            wheel_cache=wheel_cache,
+                        )
+                    else:
+                        line_req = InstallRequirement.from_line(
+                            COMMENT_RE.sub('', line).strip(),
+                            isolated=isolated,
+                            wheel_cache=wheel_cache,
+                        )
+
+                    if not line_req.name:
+                        logger.info(
+                            "Skipping line in requirement file [%s] because "
+                            "it's not clear what it would install: %s",
+                            req_file_path, line.strip(),
+                        )
+                        logger.info(
+                            "  (add #egg=PackageName to the URL to avoid"
+                            " this warning)"
+                        )
+                    elif line_req.name not in installations:
+                        logger.warning(
+                            "Requirement file [%s] contains %s, but that "
+                            "package is not installed",
+                            req_file_path, COMMENT_RE.sub('', line).strip(),
+                        )
+                    else:
+                        yield str(installations[line_req.name]).rstrip()
+                        del installations[line_req.name]
+
+        yield(
+            '## The following requirements were added by '
+            'pip freeze:'
+        )
+    for installation in sorted(
+            installations.values(), key=lambda x: x.name.lower()):
+        if canonicalize_name(installation.name) not in skip:
+            yield str(installation).rstrip()
diff --git a/venv/lib/python3.5/site-packages/pip/pep425tags.py b/venv/lib/python3.5/site-packages/pip/pep425tags.py
new file mode 100644
index 0000000..ad202ef
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/pep425tags.py
@@ -0,0 +1,324 @@
+"""Generate and work with PEP 425 Compatibility Tags."""
+from __future__ import absolute_import
+
+import re
+import sys
+import warnings
+import platform
+import logging
+
+try:
+    import sysconfig
+except ImportError:  # pragma nocover
+    # Python < 2.7
+    import distutils.sysconfig as sysconfig
+import distutils.util
+
+from pip.compat import OrderedDict
+import pip.utils.glibc
+
+logger = logging.getLogger(__name__)
+
+_osx_arch_pat = re.compile(r'(.+)_(\d+)_(\d+)_(.+)')
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # Issue #1074
+        warnings.warn("{0}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    if hasattr(sys, 'pypy_version_info'):
+        pyimpl = 'pp'
+    elif sys.platform.startswith('java'):
+        pyimpl = 'jy'
+    elif sys.platform == 'cli':
+        pyimpl = 'ip'
+    else:
+        pyimpl = 'cp'
+    return pyimpl
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_impl_tag():
+    """
+    Returns the Tag for this specific implementation.
+    """
+    return "{0}{1}".format(get_abbr_impl(), get_impl_ver())
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            logger.debug("Config variable '%s' is unset, Python ABI tag may "
+                         "be incorrect", var)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in ('cp', 'pp') and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def _is_running_32bit():
+    return sys.maxsize == 2147483647
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    if sys.platform == 'darwin':
+        # distutils.util.get_platform() returns the release based on the value
+        # of MACOSX_DEPLOYMENT_TARGET on which Python was built, which may
+        # be significantly older than the user's current machine.
+        release, _, machine = platform.mac_ver()
+        split_ver = release.split('.')
+
+        if machine == "x86_64" and _is_running_32bit():
+            machine = "i386"
+        elif machine == "ppc64" and _is_running_32bit():
+            machine = "ppc"
+
+        return 'macosx_{0}_{1}_{2}'.format(split_ver[0], split_ver[1], machine)
+
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and _is_running_32bit():
+        # 32 bit Python program (running on a 64 bit Linux): pip should only
+        # install and run 32 bit compiled extensions in that case.
+        result = "linux_i686"
+
+    return result
+
+
+def is_manylinux1_compatible():
+    # Only Linux, and only x86-64 / i686
+    if get_platform() not in ("linux_x86_64", "linux_i686"):
+        return False
+
+    # Check for presence of _manylinux module
+    try:
+        import _manylinux
+        return bool(_manylinux.manylinux1_compatible)
+    except (ImportError, AttributeError):
+        # Fall through to heuristic check below
+        pass
+
+    # Check glibc version. CentOS 5 uses glibc 2.5.
+    return pip.utils.glibc.have_compatible_glibc(2, 5)
+
+
+def get_darwin_arches(major, minor, machine):
+    """Return a list of supported arches (including group arches) for
+    the given major, minor and machine architecture of an macOS machine.
+    """
+    arches = []
+
+    def _supports_arch(major, minor, arch):
+        # Looking at the application support for macOS versions in the chart
+        # provided by https://en.wikipedia.org/wiki/OS_X#Versions it appears
+        # our timeline looks roughly like:
+        #
+        # 10.0 - Introduces ppc support.
+        # 10.4 - Introduces ppc64, i386, and x86_64 support, however the ppc64
+        #        and x86_64 support is CLI only, and cannot be used for GUI
+        #        applications.
+        # 10.5 - Extends ppc64 and x86_64 support to cover GUI applications.
+        # 10.6 - Drops support for ppc64
+        # 10.7 - Drops support for ppc
+        #
+        # Given that we do not know if we're installing a CLI or a GUI
+        # application, we must be conservative and assume it might be a GUI
+        # application and behave as if ppc64 and x86_64 support did not occur
+        # until 10.5.
+        #
+        # Note: The above information is taken from the "Application support"
+        #       column in the chart not the "Processor support" since I believe
+        #       that we care about what instruction sets an application can use
+        #       not which processors the OS supports.
+        if arch == 'ppc':
+            return (major, minor) <= (10, 5)
+        if arch == 'ppc64':
+            return (major, minor) == (10, 5)
+        if arch == 'i386':
+            return (major, minor) >= (10, 4)
+        if arch == 'x86_64':
+            return (major, minor) >= (10, 5)
+        if arch in groups:
+            for garch in groups[arch]:
+                if _supports_arch(major, minor, garch):
+                    return True
+        return False
+
+    groups = OrderedDict([
+        ("fat", ("i386", "ppc")),
+        ("intel", ("x86_64", "i386")),
+        ("fat64", ("x86_64", "ppc64")),
+        ("fat32", ("x86_64", "i386", "ppc")),
+    ])
+
+    if _supports_arch(major, minor, machine):
+        arches.append(machine)
+
+    for garch in groups:
+        if machine in groups[garch] and _supports_arch(major, minor, garch):
+            arches.append(garch)
+
+    arches.append('universal')
+
+    return arches
+
+
+def get_supported(versions=None, noarch=False, platform=None,
+                  impl=None, abi=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    :param platform: specify the exact platform you want valid
+        tags for, or None. If None, use the local system platform.
+    :param impl: specify the exact implementation you want valid
+        tags for, or None. If None, use the local interpreter impl.
+    :param abi: specify the exact abi you want valid
+        tags for, or None. If None, use the local interpreter abi.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = impl or get_abbr_impl()
+
+    abis = []
+
+    abi = abi or get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    if not noarch:
+        arch = platform or get_platform()
+        if arch.startswith('macosx'):
+            # support macosx-10.6-intel on macosx-10.9-x86_64
+            match = _osx_arch_pat.match(arch)
+            if match:
+                name, major, minor, actual_arch = match.groups()
+                tpl = '{0}_{1}_%i_%s'.format(name, major)
+                arches = []
+                for m in reversed(range(int(minor) + 1)):
+                    for a in get_darwin_arches(int(major), m, actual_arch):
+                        arches.append(tpl % (m, a))
+            else:
+                # arch pattern didn't match (?!)
+                arches = [arch]
+        elif platform is None and is_manylinux1_compatible():
+            arches = [arch.replace('linux', 'manylinux1'), arch]
+        else:
+            arches = [arch]
+
+        # Current version, current API (built specifically for our Python):
+        for abi in abis:
+            for arch in arches:
+                supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+        # abi3 modules compatible with older version of Python
+        for version in versions[1:]:
+            # abi3 was introduced in Python 3.2
+            if version in ('31', '30'):
+                break
+            for abi in abi3s:   # empty set if not Python 3
+                for arch in arches:
+                    supported.append(("%s%s" % (impl, version), abi, arch))
+
+        # Has binaries, does not use the Python API:
+        for arch in arches:
+            supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, but requires our implementation:
+    supported.append(('%s%s' % (impl, versions[0]), 'none', 'any'))
+    # Tagged specifically as being cross-version compatible
+    # (with just the major version specified)
+    supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
+
+supported_tags = get_supported()
+supported_tags_noarch = get_supported(noarch=True)
+
+implementation_tag = get_impl_tag()
diff --git a/venv/lib/python3.5/site-packages/pip/req/__init__.py b/venv/lib/python3.5/site-packages/pip/req/__init__.py
new file mode 100644
index 0000000..00185a4
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/req/__init__.py
@@ -0,0 +1,10 @@
+from __future__ import absolute_import
+
+from .req_install import InstallRequirement
+from .req_set import RequirementSet, Requirements
+from .req_file import parse_requirements
+
+__all__ = [
+    "RequirementSet", "Requirements", "InstallRequirement",
+    "parse_requirements",
+]
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diff --git a/venv/lib/python3.5/site-packages/pip/req/req_file.py b/venv/lib/python3.5/site-packages/pip/req/req_file.py
new file mode 100644
index 0000000..821df22
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/req/req_file.py
@@ -0,0 +1,342 @@
+"""
+Requirements file parsing
+"""
+
+from __future__ import absolute_import
+
+import os
+import re
+import shlex
+import sys
+import optparse
+import warnings
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves import filterfalse
+
+import pip
+from pip.download import get_file_content
+from pip.req.req_install import InstallRequirement
+from pip.exceptions import (RequirementsFileParseError)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip import cmdoptions
+
+__all__ = ['parse_requirements']
+
+SCHEME_RE = re.compile(r'^(http|https|file):', re.I)
+COMMENT_RE = re.compile(r'(^|\s)+#.*$')
+
+SUPPORTED_OPTIONS = [
+    cmdoptions.constraints,
+    cmdoptions.editable,
+    cmdoptions.requirements,
+    cmdoptions.no_index,
+    cmdoptions.index_url,
+    cmdoptions.find_links,
+    cmdoptions.extra_index_url,
+    cmdoptions.allow_external,
+    cmdoptions.allow_all_external,
+    cmdoptions.no_allow_external,
+    cmdoptions.allow_unsafe,
+    cmdoptions.no_allow_unsafe,
+    cmdoptions.use_wheel,
+    cmdoptions.no_use_wheel,
+    cmdoptions.always_unzip,
+    cmdoptions.no_binary,
+    cmdoptions.only_binary,
+    cmdoptions.pre,
+    cmdoptions.process_dependency_links,
+    cmdoptions.trusted_host,
+    cmdoptions.require_hashes,
+]
+
+# options to be passed to requirements
+SUPPORTED_OPTIONS_REQ = [
+    cmdoptions.install_options,
+    cmdoptions.global_options,
+    cmdoptions.hash,
+]
+
+# the 'dest' string values
+SUPPORTED_OPTIONS_REQ_DEST = [o().dest for o in SUPPORTED_OPTIONS_REQ]
+
+
+def parse_requirements(filename, finder=None, comes_from=None, options=None,
+                       session=None, constraint=False, wheel_cache=None):
+    """Parse a requirements file and yield InstallRequirement instances.
+
+    :param filename:    Path or url of requirements file.
+    :param finder:      Instance of pip.index.PackageFinder.
+    :param comes_from:  Origin description of requirements.
+    :param options:     cli options.
+    :param session:     Instance of pip.download.PipSession.
+    :param constraint:  If true, parsing a constraint file rather than
+        requirements file.
+    :param wheel_cache: Instance of pip.wheel.WheelCache
+    """
+    if session is None:
+        raise TypeError(
+            "parse_requirements() missing 1 required keyword argument: "
+            "'session'"
+        )
+
+    _, content = get_file_content(
+        filename, comes_from=comes_from, session=session
+    )
+
+    lines_enum = preprocess(content, options)
+
+    for line_number, line in lines_enum:
+        req_iter = process_line(line, filename, line_number, finder,
+                                comes_from, options, session, wheel_cache,
+                                constraint=constraint)
+        for req in req_iter:
+            yield req
+
+
+def preprocess(content, options):
+    """Split, filter, and join lines, and return a line iterator
+
+    :param content: the content of the requirements file
+    :param options: cli options
+    """
+    lines_enum = enumerate(content.splitlines(), start=1)
+    lines_enum = join_lines(lines_enum)
+    lines_enum = ignore_comments(lines_enum)
+    lines_enum = skip_regex(lines_enum, options)
+    return lines_enum
+
+
+def process_line(line, filename, line_number, finder=None, comes_from=None,
+                 options=None, session=None, wheel_cache=None,
+                 constraint=False):
+    """Process a single requirements line; This can result in creating/yielding
+    requirements, or updating the finder.
+
+    For lines that contain requirements, the only options that have an effect
+    are from SUPPORTED_OPTIONS_REQ, and they are scoped to the
+    requirement. Other options from SUPPORTED_OPTIONS may be present, but are
+    ignored.
+
+    For lines that do not contain requirements, the only options that have an
+    effect are from SUPPORTED_OPTIONS. Options from SUPPORTED_OPTIONS_REQ may
+    be present, but are ignored. These lines may contain multiple options
+    (although our docs imply only one is supported), and all our parsed and
+    affect the finder.
+
+    :param constraint: If True, parsing a constraints file.
+    :param options: OptionParser options that we may update
+    """
+    parser = build_parser()
+    defaults = parser.get_default_values()
+    defaults.index_url = None
+    if finder:
+        # `finder.format_control` will be updated during parsing
+        defaults.format_control = finder.format_control
+    args_str, options_str = break_args_options(line)
+    if sys.version_info < (2, 7, 3):
+        # Prior to 2.7.3, shlex cannot deal with unicode entries
+        options_str = options_str.encode('utf8')
+    opts, _ = parser.parse_args(shlex.split(options_str), defaults)
+
+    # preserve for the nested code path
+    line_comes_from = '%s %s (line %s)' % (
+        '-c' if constraint else '-r', filename, line_number)
+
+    # yield a line requirement
+    if args_str:
+        isolated = options.isolated_mode if options else False
+        if options:
+            cmdoptions.check_install_build_global(options, opts)
+        # get the options that apply to requirements
+        req_options = {}
+        for dest in SUPPORTED_OPTIONS_REQ_DEST:
+            if dest in opts.__dict__ and opts.__dict__[dest]:
+                req_options[dest] = opts.__dict__[dest]
+        yield InstallRequirement.from_line(
+            args_str, line_comes_from, constraint=constraint,
+            isolated=isolated, options=req_options, wheel_cache=wheel_cache
+        )
+
+    # yield an editable requirement
+    elif opts.editables:
+        isolated = options.isolated_mode if options else False
+        default_vcs = options.default_vcs if options else None
+        yield InstallRequirement.from_editable(
+            opts.editables[0], comes_from=line_comes_from,
+            constraint=constraint, default_vcs=default_vcs, isolated=isolated,
+            wheel_cache=wheel_cache
+        )
+
+    # parse a nested requirements file
+    elif opts.requirements or opts.constraints:
+        if opts.requirements:
+            req_path = opts.requirements[0]
+            nested_constraint = False
+        else:
+            req_path = opts.constraints[0]
+            nested_constraint = True
+        # original file is over http
+        if SCHEME_RE.search(filename):
+            # do a url join so relative paths work
+            req_path = urllib_parse.urljoin(filename, req_path)
+        # original file and nested file are paths
+        elif not SCHEME_RE.search(req_path):
+            # do a join so relative paths work
+            req_path = os.path.join(os.path.dirname(filename), req_path)
+        # TODO: Why not use `comes_from='-r {} (line {})'` here as well?
+        parser = parse_requirements(
+            req_path, finder, comes_from, options, session,
+            constraint=nested_constraint, wheel_cache=wheel_cache
+        )
+        for req in parser:
+            yield req
+
+    # percolate hash-checking option upward
+    elif opts.require_hashes:
+        options.require_hashes = opts.require_hashes
+
+    # set finder options
+    elif finder:
+        if opts.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.index_url:
+            finder.index_urls = [opts.index_url]
+        if opts.use_wheel is False:
+            finder.use_wheel = False
+            pip.index.fmt_ctl_no_use_wheel(finder.format_control)
+        if opts.no_index is True:
+            finder.index_urls = []
+        if opts.extra_index_urls:
+            finder.index_urls.extend(opts.extra_index_urls)
+        if opts.find_links:
+            # FIXME: it would be nice to keep track of the source
+            # of the find_links: support a find-links local path
+            # relative to a requirements file.
+            value = opts.find_links[0]
+            req_dir = os.path.dirname(os.path.abspath(filename))
+            relative_to_reqs_file = os.path.join(req_dir, value)
+            if os.path.exists(relative_to_reqs_file):
+                value = relative_to_reqs_file
+            finder.find_links.append(value)
+        if opts.pre:
+            finder.allow_all_prereleases = True
+        if opts.process_dependency_links:
+            finder.process_dependency_links = True
+        if opts.trusted_hosts:
+            finder.secure_origins.extend(
+                ("*", host, "*") for host in opts.trusted_hosts)
+
+
+def break_args_options(line):
+    """Break up the line into an args and options string.  We only want to shlex
+    (and then optparse) the options, not the args.  args can contain markers
+    which are corrupted by shlex.
+    """
+    tokens = line.split(' ')
+    args = []
+    options = tokens[:]
+    for token in tokens:
+        if token.startswith('-') or token.startswith('--'):
+            break
+        else:
+            args.append(token)
+            options.pop(0)
+    return ' '.join(args), ' '.join(options)
+
+
+def build_parser():
+    """
+    Return a parser for parsing requirement lines
+    """
+    parser = optparse.OptionParser(add_help_option=False)
+
+    option_factories = SUPPORTED_OPTIONS + SUPPORTED_OPTIONS_REQ
+    for option_factory in option_factories:
+        option = option_factory()
+        parser.add_option(option)
+
+    # By default optparse sys.exits on parsing errors. We want to wrap
+    # that in our own exception.
+    def parser_exit(self, msg):
+        raise RequirementsFileParseError(msg)
+    parser.exit = parser_exit
+
+    return parser
+
+
+def join_lines(lines_enum):
+    """Joins a line ending in '\' with the previous line (except when following
+    comments).  The joined line takes on the index of the first line.
+    """
+    primary_line_number = None
+    new_line = []
+    for line_number, line in lines_enum:
+        if not line.endswith('\\') or COMMENT_RE.match(line):
+            if COMMENT_RE.match(line):
+                # this ensures comments are always matched later
+                line = ' ' + line
+            if new_line:
+                new_line.append(line)
+                yield primary_line_number, ''.join(new_line)
+                new_line = []
+            else:
+                yield line_number, line
+        else:
+            if not new_line:
+                primary_line_number = line_number
+            new_line.append(line.strip('\\'))
+
+    # last line contains \
+    if new_line:
+        yield primary_line_number, ''.join(new_line)
+
+    # TODO: handle space after '\'.
+
+
+def ignore_comments(lines_enum):
+    """
+    Strips comments and filter empty lines.
+    """
+    for line_number, line in lines_enum:
+        line = COMMENT_RE.sub('', line)
+        line = line.strip()
+        if line:
+            yield line_number, line
+
+
+def skip_regex(lines_enum, options):
+    """
+    Skip lines that match '--skip-requirements-regex' pattern
+
+    Note: the regex pattern is only built once
+    """
+    skip_regex = options.skip_requirements_regex if options else None
+    if skip_regex:
+        pattern = re.compile(skip_regex)
+        lines_enum = filterfalse(
+            lambda e: pattern.search(e[1]),
+            lines_enum)
+    return lines_enum
diff --git a/venv/lib/python3.5/site-packages/pip/req/req_install.py b/venv/lib/python3.5/site-packages/pip/req/req_install.py
new file mode 100644
index 0000000..1a98f37
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/req/req_install.py
@@ -0,0 +1,1204 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import re
+import shutil
+import sys
+import tempfile
+import traceback
+import warnings
+import zipfile
+
+from distutils import sysconfig
+from distutils.util import change_root
+from email.parser import FeedParser
+
+from pip._vendor import pkg_resources, six
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging.markers import Marker
+from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import Version, parse as parse_version
+from pip._vendor.six.moves import configparser
+
+import pip.wheel
+
+from pip.compat import native_str, get_stdlib, WINDOWS
+from pip.download import is_url, url_to_path, path_to_url, is_archive_file
+from pip.exceptions import (
+    InstallationError, UninstallationError,
+)
+from pip.locations import (
+    bin_py, running_under_virtualenv, PIP_DELETE_MARKER_FILENAME, bin_user,
+)
+from pip.utils import (
+    display_path, rmtree, ask_path_exists, backup_dir, is_installable_dir,
+    dist_in_usersite, dist_in_site_packages, egg_link_path,
+    call_subprocess, read_text_file, FakeFile, _make_build_dir, ensure_dir,
+    get_installed_version, normalize_path, dist_is_local,
+)
+
+from pip.utils.hashes import Hashes
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip.utils.ui import open_spinner
+from pip.req.req_uninstall import UninstallPathSet
+from pip.vcs import vcs
+from pip.wheel import move_wheel_files, Wheel
+
+
+logger = logging.getLogger(__name__)
+
+operators = specifiers.Specifier._operators.keys()
+
+
+def _strip_extras(path):
+    m = re.match(r'^(.+)(\[[^\]]+\])$', path)
+    extras = None
+    if m:
+        path_no_extras = m.group(1)
+        extras = m.group(2)
+    else:
+        path_no_extras = path
+
+    return path_no_extras, extras
+
+
+def _safe_extras(extras):
+    return set(pkg_resources.safe_extra(extra) for extra in extras)
+
+
+class InstallRequirement(object):
+
+    def __init__(self, req, comes_from, source_dir=None, editable=False,
+                 link=None, as_egg=False, update=True,
+                 pycompile=True, markers=None, isolated=False, options=None,
+                 wheel_cache=None, constraint=False):
+        self.extras = ()
+        if isinstance(req, six.string_types):
+            try:
+                req = Requirement(req)
+            except InvalidRequirement:
+                if os.path.sep in req:
+                    add_msg = "It looks like a path. Does it exist ?"
+                elif '=' in req and not any(op in req for op in operators):
+                    add_msg = "= is not a valid operator. Did you mean == ?"
+                else:
+                    add_msg = traceback.format_exc()
+                raise InstallationError(
+                    "Invalid requirement: '%s'\n%s" % (req, add_msg))
+            self.extras = _safe_extras(req.extras)
+
+        self.req = req
+        self.comes_from = comes_from
+        self.constraint = constraint
+        self.source_dir = source_dir
+        self.editable = editable
+
+        self._wheel_cache = wheel_cache
+        self.link = self.original_link = link
+        self.as_egg = as_egg
+        if markers is not None:
+            self.markers = markers
+        else:
+            self.markers = req and req.marker
+        self._egg_info_path = None
+        # This holds the pkg_resources.Distribution object if this requirement
+        # is already available:
+        self.satisfied_by = None
+        # This hold the pkg_resources.Distribution object if this requirement
+        # conflicts with another installed distribution:
+        self.conflicts_with = None
+        # Temporary build location
+        self._temp_build_dir = None
+        # Used to store the global directory where the _temp_build_dir should
+        # have been created. Cf _correct_build_location method.
+        self._ideal_build_dir = None
+        # True if the editable should be updated:
+        self.update = update
+        # Set to True after successful installation
+        self.install_succeeded = None
+        # UninstallPathSet of uninstalled distribution (for possible rollback)
+        self.uninstalled = None
+        # Set True if a legitimate do-nothing-on-uninstall has happened - e.g.
+        # system site packages, stdlib packages.
+        self.nothing_to_uninstall = False
+        self.use_user_site = False
+        self.target_dir = None
+        self.options = options if options else {}
+        self.pycompile = pycompile
+        # Set to True after successful preparation of this requirement
+        self.prepared = False
+
+        self.isolated = isolated
+
+    @classmethod
+    def from_editable(cls, editable_req, comes_from=None, default_vcs=None,
+                      isolated=False, options=None, wheel_cache=None,
+                      constraint=False):
+        from pip.index import Link
+
+        name, url, extras_override = parse_editable(
+            editable_req, default_vcs)
+        if url.startswith('file:'):
+            source_dir = url_to_path(url)
+        else:
+            source_dir = None
+
+        res = cls(name, comes_from, source_dir=source_dir,
+                  editable=True,
+                  link=Link(url),
+                  constraint=constraint,
+                  isolated=isolated,
+                  options=options if options else {},
+                  wheel_cache=wheel_cache)
+
+        if extras_override is not None:
+            res.extras = _safe_extras(extras_override)
+
+        return res
+
+    @classmethod
+    def from_line(
+            cls, name, comes_from=None, isolated=False, options=None,
+            wheel_cache=None, constraint=False):
+        """Creates an InstallRequirement from a name, which might be a
+        requirement, directory containing 'setup.py', filename, or URL.
+        """
+        from pip.index import Link
+
+        if is_url(name):
+            marker_sep = '; '
+        else:
+            marker_sep = ';'
+        if marker_sep in name:
+            name, markers = name.split(marker_sep, 1)
+            markers = markers.strip()
+            if not markers:
+                markers = None
+            else:
+                markers = Marker(markers)
+        else:
+            markers = None
+        name = name.strip()
+        req = None
+        path = os.path.normpath(os.path.abspath(name))
+        link = None
+        extras = None
+
+        if is_url(name):
+            link = Link(name)
+        else:
+            p, extras = _strip_extras(path)
+            if (os.path.isdir(p) and
+                    (os.path.sep in name or name.startswith('.'))):
+
+                if not is_installable_dir(p):
+                    raise InstallationError(
+                        "Directory %r is not installable. File 'setup.py' "
+                        "not found." % name
+                    )
+                link = Link(path_to_url(p))
+            elif is_archive_file(p):
+                if not os.path.isfile(p):
+                    logger.warning(
+                        'Requirement %r looks like a filename, but the '
+                        'file does not exist',
+                        name
+                    )
+                link = Link(path_to_url(p))
+
+        # it's a local file, dir, or url
+        if link:
+            # Handle relative file URLs
+            if link.scheme == 'file' and re.search(r'\.\./', link.url):
+                link = Link(
+                    path_to_url(os.path.normpath(os.path.abspath(link.path))))
+            # wheel file
+            if link.is_wheel:
+                wheel = Wheel(link.filename)  # can raise InvalidWheelFilename
+                req = "%s==%s" % (wheel.name, wheel.version)
+            else:
+                # set the req to the egg fragment.  when it's not there, this
+                # will become an 'unnamed' requirement
+                req = link.egg_fragment
+
+        # a requirement specifier
+        else:
+            req = name
+
+        options = options if options else {}
+        res = cls(req, comes_from, link=link, markers=markers,
+                  isolated=isolated, options=options,
+                  wheel_cache=wheel_cache, constraint=constraint)
+
+        if extras:
+            res.extras = _safe_extras(
+                Requirement('placeholder' + extras).extras)
+
+        return res
+
+    def __str__(self):
+        if self.req:
+            s = str(self.req)
+            if self.link:
+                s += ' from %s' % self.link.url
+        else:
+            s = self.link.url if self.link else None
+        if self.satisfied_by is not None:
+            s += ' in %s' % display_path(self.satisfied_by.location)
+        if self.comes_from:
+            if isinstance(self.comes_from, six.string_types):
+                comes_from = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += ' (from %s)' % comes_from
+        return s
+
+    def __repr__(self):
+        return '<%s object: %s editable=%r>' % (
+            self.__class__.__name__, str(self), self.editable)
+
+    def populate_link(self, finder, upgrade, require_hashes):
+        """Ensure that if a link can be found for this, that it is found.
+
+        Note that self.link may still be None - if Upgrade is False and the
+        requirement is already installed.
+
+        If require_hashes is True, don't use the wheel cache, because cached
+        wheels, always built locally, have different hashes than the files
+        downloaded from the index server and thus throw false hash mismatches.
+        Furthermore, cached wheels at present have undeterministic contents due
+        to file modification times.
+        """
+        if self.link is None:
+            self.link = finder.find_requirement(self, upgrade)
+        if self._wheel_cache is not None and not require_hashes:
+            old_link = self.link
+            self.link = self._wheel_cache.cached_wheel(self.link, self.name)
+            if old_link != self.link:
+                logger.debug('Using cached wheel link: %s', self.link)
+
+    @property
+    def specifier(self):
+        return self.req.specifier
+
+    @property
+    def is_pinned(self):
+        """Return whether I am pinned to an exact version.
+
+        For example, some-package==1.2 is pinned; some-package>1.2 is not.
+        """
+        specifiers = self.specifier
+        return (len(specifiers) == 1 and
+                next(iter(specifiers)).operator in ('==', '==='))
+
+    def from_path(self):
+        if self.req is None:
+            return None
+        s = str(self.req)
+        if self.comes_from:
+            if isinstance(self.comes_from, six.string_types):
+                comes_from = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += '->' + comes_from
+        return s
+
+    def build_location(self, build_dir):
+        if self._temp_build_dir is not None:
+            return self._temp_build_dir
+        if self.req is None:
+            # for requirement via a path to a directory: the name of the
+            # package is not available yet so we create a temp directory
+            # Once run_egg_info will have run, we'll be able
+            # to fix it via _correct_build_location
+            # Some systems have /tmp as a symlink which confuses custom
+            # builds (such as numpy). Thus, we ensure that the real path
+            # is returned.
+            self._temp_build_dir = os.path.realpath(
+                tempfile.mkdtemp('-build', 'pip-')
+            )
+            self._ideal_build_dir = build_dir
+            return self._temp_build_dir
+        if self.editable:
+            name = self.name.lower()
+        else:
+            name = self.name
+        # FIXME: Is there a better place to create the build_dir? (hg and bzr
+        # need this)
+        if not os.path.exists(build_dir):
+            logger.debug('Creating directory %s', build_dir)
+            _make_build_dir(build_dir)
+        return os.path.join(build_dir, name)
+
+    def _correct_build_location(self):
+        """Move self._temp_build_dir to self._ideal_build_dir/self.req.name
+
+        For some requirements (e.g. a path to a directory), the name of the
+        package is not available until we run egg_info, so the build_location
+        will return a temporary directory and store the _ideal_build_dir.
+
+        This is only called by self.egg_info_path to fix the temporary build
+        directory.
+        """
+        if self.source_dir is not None:
+            return
+        assert self.req is not None
+        assert self._temp_build_dir
+        assert self._ideal_build_dir
+        old_location = self._temp_build_dir
+        self._temp_build_dir = None
+        new_location = self.build_location(self._ideal_build_dir)
+        if os.path.exists(new_location):
+            raise InstallationError(
+                'A package already exists in %s; please remove it to continue'
+                % display_path(new_location))
+        logger.debug(
+            'Moving package %s from %s to new location %s',
+            self, display_path(old_location), display_path(new_location),
+        )
+        shutil.move(old_location, new_location)
+        self._temp_build_dir = new_location
+        self._ideal_build_dir = None
+        self.source_dir = new_location
+        self._egg_info_path = None
+
+    @property
+    def name(self):
+        if self.req is None:
+            return None
+        return native_str(pkg_resources.safe_name(self.req.name))
+
+    @property
+    def setup_py_dir(self):
+        return os.path.join(
+            self.source_dir,
+            self.link and self.link.subdirectory_fragment or '')
+
+    @property
+    def setup_py(self):
+        assert self.source_dir, "No source dir for %s" % self
+        try:
+            import setuptools  # noqa
+        except ImportError:
+            if get_installed_version('setuptools') is None:
+                add_msg = "Please install setuptools."
+            else:
+                add_msg = traceback.format_exc()
+            # Setuptools is not available
+            raise InstallationError(
+                "Could not import setuptools which is required to "
+                "install from a source distribution.\n%s" % add_msg
+            )
+
+        setup_py = os.path.join(self.setup_py_dir, 'setup.py')
+
+        # Python2 __file__ should not be unicode
+        if six.PY2 and isinstance(setup_py, six.text_type):
+            setup_py = setup_py.encode(sys.getfilesystemencoding())
+
+        return setup_py
+
+    def run_egg_info(self):
+        assert self.source_dir
+        if self.name:
+            logger.debug(
+                'Running setup.py (path:%s) egg_info for package %s',
+                self.setup_py, self.name,
+            )
+        else:
+            logger.debug(
+                'Running setup.py (path:%s) egg_info for package from %s',
+                self.setup_py, self.link,
+            )
+
+        with indent_log():
+            script = SETUPTOOLS_SHIM % self.setup_py
+            base_cmd = [sys.executable, '-c', script]
+            if self.isolated:
+                base_cmd += ["--no-user-cfg"]
+            egg_info_cmd = base_cmd + ['egg_info']
+            # We can't put the .egg-info files at the root, because then the
+            # source code will be mistaken for an installed egg, causing
+            # problems
+            if self.editable:
+                egg_base_option = []
+            else:
+                egg_info_dir = os.path.join(self.setup_py_dir, 'pip-egg-info')
+                ensure_dir(egg_info_dir)
+                egg_base_option = ['--egg-base', 'pip-egg-info']
+            call_subprocess(
+                egg_info_cmd + egg_base_option,
+                cwd=self.setup_py_dir,
+                show_stdout=False,
+                command_desc='python setup.py egg_info')
+
+        if not self.req:
+            if isinstance(parse_version(self.pkg_info()["Version"]), Version):
+                op = "=="
+            else:
+                op = "==="
+            self.req = Requirement(
+                "".join([
+                    self.pkg_info()["Name"],
+                    op,
+                    self.pkg_info()["Version"],
+                ])
+            )
+            self._correct_build_location()
+        else:
+            metadata_name = canonicalize_name(self.pkg_info()["Name"])
+            if canonicalize_name(self.req.name) != metadata_name:
+                logger.warning(
+                    'Running setup.py (path:%s) egg_info for package %s '
+                    'produced metadata for project name %s. Fix your '
+                    '#egg=%s fragments.',
+                    self.setup_py, self.name, metadata_name, self.name
+                )
+                self.req = Requirement(metadata_name)
+
+    def egg_info_data(self, filename):
+        if self.satisfied_by is not None:
+            if not self.satisfied_by.has_metadata(filename):
+                return None
+            return self.satisfied_by.get_metadata(filename)
+        assert self.source_dir
+        filename = self.egg_info_path(filename)
+        if not os.path.exists(filename):
+            return None
+        data = read_text_file(filename)
+        return data
+
+    def egg_info_path(self, filename):
+        if self._egg_info_path is None:
+            if self.editable:
+                base = self.source_dir
+            else:
+                base = os.path.join(self.setup_py_dir, 'pip-egg-info')
+            filenames = os.listdir(base)
+            if self.editable:
+                filenames = []
+                for root, dirs, files in os.walk(base):
+                    for dir in vcs.dirnames:
+                        if dir in dirs:
+                            dirs.remove(dir)
+                    # Iterate over a copy of ``dirs``, since mutating
+                    # a list while iterating over it can cause trouble.
+                    # (See https://github.com/pypa/pip/pull/462.)
+                    for dir in list(dirs):
+                        # Don't search in anything that looks like a virtualenv
+                        # environment
+                        if (
+                                os.path.lexists(
+                                    os.path.join(root, dir, 'bin', 'python')
+                                ) or
+                                os.path.exists(
+                                    os.path.join(
+                                        root, dir, 'Scripts', 'Python.exe'
+                                    )
+                                )):
+                            dirs.remove(dir)
+                        # Also don't search through tests
+                        elif dir == 'test' or dir == 'tests':
+                            dirs.remove(dir)
+                    filenames.extend([os.path.join(root, dir)
+                                     for dir in dirs])
+                filenames = [f for f in filenames if f.endswith('.egg-info')]
+
+            if not filenames:
+                raise InstallationError(
+                    'No files/directories in %s (from %s)' % (base, filename)
+                )
+            assert filenames, \
+                "No files/directories in %s (from %s)" % (base, filename)
+
+            # if we have more than one match, we pick the toplevel one.  This
+            # can easily be the case if there is a dist folder which contains
+            # an extracted tarball for testing purposes.
+            if len(filenames) > 1:
+                filenames.sort(
+                    key=lambda x: x.count(os.path.sep) +
+                    (os.path.altsep and x.count(os.path.altsep) or 0)
+                )
+            self._egg_info_path = os.path.join(base, filenames[0])
+        return os.path.join(self._egg_info_path, filename)
+
+    def pkg_info(self):
+        p = FeedParser()
+        data = self.egg_info_data('PKG-INFO')
+        if not data:
+            logger.warning(
+                'No PKG-INFO file found in %s',
+                display_path(self.egg_info_path('PKG-INFO')),
+            )
+        p.feed(data or '')
+        return p.close()
+
+    _requirements_section_re = re.compile(r'\[(.*?)\]')
+
+    @property
+    def installed_version(self):
+        return get_installed_version(self.name)
+
+    def assert_source_matches_version(self):
+        assert self.source_dir
+        version = self.pkg_info()['version']
+        if self.req.specifier and version not in self.req.specifier:
+            logger.warning(
+                'Requested %s, but installing version %s',
+                self,
+                self.installed_version,
+            )
+        else:
+            logger.debug(
+                'Source in %s has version %s, which satisfies requirement %s',
+                display_path(self.source_dir),
+                version,
+                self,
+            )
+
+    def update_editable(self, obtain=True):
+        if not self.link:
+            logger.debug(
+                "Cannot update repository at %s; repository location is "
+                "unknown",
+                self.source_dir,
+            )
+            return
+        assert self.editable
+        assert self.source_dir
+        if self.link.scheme == 'file':
+            # Static paths don't get updated
+            return
+        assert '+' in self.link.url, "bad url: %r" % self.link.url
+        if not self.update:
+            return
+        vc_type, url = self.link.url.split('+', 1)
+        backend = vcs.get_backend(vc_type)
+        if backend:
+            vcs_backend = backend(self.link.url)
+            if obtain:
+                vcs_backend.obtain(self.source_dir)
+            else:
+                vcs_backend.export(self.source_dir)
+        else:
+            assert 0, (
+                'Unexpected version control type (in %s): %s'
+                % (self.link, vc_type))
+
+    def uninstall(self, auto_confirm=False):
+        """
+        Uninstall the distribution currently satisfying this requirement.
+
+        Prompts before removing or modifying files unless
+        ``auto_confirm`` is True.
+
+        Refuses to delete or modify files outside of ``sys.prefix`` -
+        thus uninstallation within a virtual environment can only
+        modify that virtual environment, even if the virtualenv is
+        linked to global site-packages.
+
+        """
+        if not self.check_if_exists():
+            raise UninstallationError(
+                "Cannot uninstall requirement %s, not installed" % (self.name,)
+            )
+        dist = self.satisfied_by or self.conflicts_with
+
+        dist_path = normalize_path(dist.location)
+        if not dist_is_local(dist):
+            logger.info(
+                "Not uninstalling %s at %s, outside environment %s",
+                dist.key,
+                dist_path,
+                sys.prefix,
+            )
+            self.nothing_to_uninstall = True
+            return
+
+        if dist_path in get_stdlib():
+            logger.info(
+                "Not uninstalling %s at %s, as it is in the standard library.",
+                dist.key,
+                dist_path,
+            )
+            self.nothing_to_uninstall = True
+            return
+
+        paths_to_remove = UninstallPathSet(dist)
+        develop_egg_link = egg_link_path(dist)
+        develop_egg_link_egg_info = '{0}.egg-info'.format(
+            pkg_resources.to_filename(dist.project_name))
+        egg_info_exists = dist.egg_info and os.path.exists(dist.egg_info)
+        # Special case for distutils installed package
+        distutils_egg_info = getattr(dist._provider, 'path', None)
+
+        # Uninstall cases order do matter as in the case of 2 installs of the
+        # same package, pip needs to uninstall the currently detected version
+        if (egg_info_exists and dist.egg_info.endswith('.egg-info') and
+                not dist.egg_info.endswith(develop_egg_link_egg_info)):
+            # if dist.egg_info.endswith(develop_egg_link_egg_info), we
+            # are in fact in the develop_egg_link case
+            paths_to_remove.add(dist.egg_info)
+            if dist.has_metadata('installed-files.txt'):
+                for installed_file in dist.get_metadata(
+                        'installed-files.txt').splitlines():
+                    path = os.path.normpath(
+                        os.path.join(dist.egg_info, installed_file)
+                    )
+                    paths_to_remove.add(path)
+            # FIXME: need a test for this elif block
+            # occurs with --single-version-externally-managed/--record outside
+            # of pip
+            elif dist.has_metadata('top_level.txt'):
+                if dist.has_metadata('namespace_packages.txt'):
+                    namespaces = dist.get_metadata('namespace_packages.txt')
+                else:
+                    namespaces = []
+                for top_level_pkg in [
+                        p for p
+                        in dist.get_metadata('top_level.txt').splitlines()
+                        if p and p not in namespaces]:
+                    path = os.path.join(dist.location, top_level_pkg)
+                    paths_to_remove.add(path)
+                    paths_to_remove.add(path + '.py')
+                    paths_to_remove.add(path + '.pyc')
+                    paths_to_remove.add(path + '.pyo')
+
+        elif distutils_egg_info:
+            warnings.warn(
+                "Uninstalling a distutils installed project ({0}) has been "
+                "deprecated and will be removed in a future version. This is "
+                "due to the fact that uninstalling a distutils project will "
+                "only partially uninstall the project.".format(self.name),
+                RemovedInPip10Warning,
+            )
+            paths_to_remove.add(distutils_egg_info)
+
+        elif dist.location.endswith('.egg'):
+            # package installed by easy_install
+            # We cannot match on dist.egg_name because it can slightly vary
+            # i.e. setuptools-0.6c11-py2.6.egg vs setuptools-0.6rc11-py2.6.egg
+            paths_to_remove.add(dist.location)
+            easy_install_egg = os.path.split(dist.location)[1]
+            easy_install_pth = os.path.join(os.path.dirname(dist.location),
+                                            'easy-install.pth')
+            paths_to_remove.add_pth(easy_install_pth, './' + easy_install_egg)
+
+        elif egg_info_exists and dist.egg_info.endswith('.dist-info'):
+            for path in pip.wheel.uninstallation_paths(dist):
+                paths_to_remove.add(path)
+
+        elif develop_egg_link:
+            # develop egg
+            with open(develop_egg_link, 'r') as fh:
+                link_pointer = os.path.normcase(fh.readline().strip())
+            assert (link_pointer == dist.location), (
+                'Egg-link %s does not match installed location of %s '
+                '(at %s)' % (link_pointer, self.name, dist.location)
+            )
+            paths_to_remove.add(develop_egg_link)
+            easy_install_pth = os.path.join(os.path.dirname(develop_egg_link),
+                                            'easy-install.pth')
+            paths_to_remove.add_pth(easy_install_pth, dist.location)
+
+        else:
+            logger.debug(
+                'Not sure how to uninstall: %s - Check: %s',
+                dist, dist.location)
+
+        # find distutils scripts= scripts
+        if dist.has_metadata('scripts') and dist.metadata_isdir('scripts'):
+            for script in dist.metadata_listdir('scripts'):
+                if dist_in_usersite(dist):
+                    bin_dir = bin_user
+                else:
+                    bin_dir = bin_py
+                paths_to_remove.add(os.path.join(bin_dir, script))
+                if WINDOWS:
+                    paths_to_remove.add(os.path.join(bin_dir, script) + '.bat')
+
+        # find console_scripts
+        if dist.has_metadata('entry_points.txt'):
+            if six.PY2:
+                options = {}
+            else:
+                options = {"delimiters": ('=', )}
+            config = configparser.SafeConfigParser(**options)
+            config.readfp(
+                FakeFile(dist.get_metadata_lines('entry_points.txt'))
+            )
+            if config.has_section('console_scripts'):
+                for name, value in config.items('console_scripts'):
+                    if dist_in_usersite(dist):
+                        bin_dir = bin_user
+                    else:
+                        bin_dir = bin_py
+                    paths_to_remove.add(os.path.join(bin_dir, name))
+                    if WINDOWS:
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '.exe'
+                        )
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '.exe.manifest'
+                        )
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '-script.py'
+                        )
+
+        paths_to_remove.remove(auto_confirm)
+        self.uninstalled = paths_to_remove
+
+    def rollback_uninstall(self):
+        if self.uninstalled:
+            self.uninstalled.rollback()
+        else:
+            logger.error(
+                "Can't rollback %s, nothing uninstalled.", self.name,
+            )
+
+    def commit_uninstall(self):
+        if self.uninstalled:
+            self.uninstalled.commit()
+        elif not self.nothing_to_uninstall:
+            logger.error(
+                "Can't commit %s, nothing uninstalled.", self.name,
+            )
+
+    def archive(self, build_dir):
+        assert self.source_dir
+        create_archive = True
+        archive_name = '%s-%s.zip' % (self.name, self.pkg_info()["version"])
+        archive_path = os.path.join(build_dir, archive_name)
+        if os.path.exists(archive_path):
+            response = ask_path_exists(
+                'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)bort ' %
+                display_path(archive_path), ('i', 'w', 'b', 'a'))
+            if response == 'i':
+                create_archive = False
+            elif response == 'w':
+                logger.warning('Deleting %s', display_path(archive_path))
+                os.remove(archive_path)
+            elif response == 'b':
+                dest_file = backup_dir(archive_path)
+                logger.warning(
+                    'Backing up %s to %s',
+                    display_path(archive_path),
+                    display_path(dest_file),
+                )
+                shutil.move(archive_path, dest_file)
+            elif response == 'a':
+                sys.exit(-1)
+        if create_archive:
+            zip = zipfile.ZipFile(
+                archive_path, 'w', zipfile.ZIP_DEFLATED,
+                allowZip64=True
+            )
+            dir = os.path.normcase(os.path.abspath(self.setup_py_dir))
+            for dirpath, dirnames, filenames in os.walk(dir):
+                if 'pip-egg-info' in dirnames:
+                    dirnames.remove('pip-egg-info')
+                for dirname in dirnames:
+                    dirname = os.path.join(dirpath, dirname)
+                    name = self._clean_zip_name(dirname, dir)
+                    zipdir = zipfile.ZipInfo(self.name + '/' + name + '/')
+                    zipdir.external_attr = 0x1ED << 16  # 0o755
+                    zip.writestr(zipdir, '')
+                for filename in filenames:
+                    if filename == PIP_DELETE_MARKER_FILENAME:
+                        continue
+                    filename = os.path.join(dirpath, filename)
+                    name = self._clean_zip_name(filename, dir)
+                    zip.write(filename, self.name + '/' + name)
+            zip.close()
+            logger.info('Saved %s', display_path(archive_path))
+
+    def _clean_zip_name(self, name, prefix):
+        assert name.startswith(prefix + os.path.sep), (
+            "name %r doesn't start with prefix %r" % (name, prefix)
+        )
+        name = name[len(prefix) + 1:]
+        name = name.replace(os.path.sep, '/')
+        return name
+
+    def match_markers(self, extras_requested=None):
+        if not extras_requested:
+            # Provide an extra to safely evaluate the markers
+            # without matching any extra
+            extras_requested = ('',)
+        if self.markers is not None:
+            return any(
+                self.markers.evaluate({'extra': extra})
+                for extra in extras_requested)
+        else:
+            return True
+
+    def install(self, install_options, global_options=[], root=None,
+                prefix=None):
+        if self.editable:
+            self.install_editable(
+                install_options, global_options, prefix=prefix)
+            return
+        if self.is_wheel:
+            version = pip.wheel.wheel_version(self.source_dir)
+            pip.wheel.check_compatibility(version, self.name)
+
+            self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
+            self.install_succeeded = True
+            return
+
+        # Extend the list of global and install options passed on to
+        # the setup.py call with the ones from the requirements file.
+        # Options specified in requirements file override those
+        # specified on the command line, since the last option given
+        # to setup.py is the one that is used.
+        global_options += self.options.get('global_options', [])
+        install_options += self.options.get('install_options', [])
+
+        if self.isolated:
+            global_options = list(global_options) + ["--no-user-cfg"]
+
+        temp_location = tempfile.mkdtemp('-record', 'pip-')
+        record_filename = os.path.join(temp_location, 'install-record.txt')
+        try:
+            install_args = self.get_install_args(
+                global_options, record_filename, root, prefix)
+            msg = 'Running setup.py install for %s' % (self.name,)
+            with open_spinner(msg) as spinner:
+                with indent_log():
+                    call_subprocess(
+                        install_args + install_options,
+                        cwd=self.setup_py_dir,
+                        show_stdout=False,
+                        spinner=spinner,
+                    )
+
+            if not os.path.exists(record_filename):
+                logger.debug('Record file %s not found', record_filename)
+                return
+            self.install_succeeded = True
+            if self.as_egg:
+                # there's no --always-unzip option we can pass to install
+                # command so we unable to save the installed-files.txt
+                return
+
+            def prepend_root(path):
+                if root is None or not os.path.isabs(path):
+                    return path
+                else:
+                    return change_root(root, path)
+
+            with open(record_filename) as f:
+                for line in f:
+                    directory = os.path.dirname(line)
+                    if directory.endswith('.egg-info'):
+                        egg_info_dir = prepend_root(directory)
+                        break
+                else:
+                    logger.warning(
+                        'Could not find .egg-info directory in install record'
+                        ' for %s',
+                        self,
+                    )
+                    # FIXME: put the record somewhere
+                    # FIXME: should this be an error?
+                    return
+            new_lines = []
+            with open(record_filename) as f:
+                for line in f:
+                    filename = line.strip()
+                    if os.path.isdir(filename):
+                        filename += os.path.sep
+                    new_lines.append(
+                        os.path.relpath(
+                            prepend_root(filename), egg_info_dir)
+                    )
+            inst_files_path = os.path.join(egg_info_dir, 'installed-files.txt')
+            with open(inst_files_path, 'w') as f:
+                f.write('\n'.join(new_lines) + '\n')
+        finally:
+            if os.path.exists(record_filename):
+                os.remove(record_filename)
+            rmtree(temp_location)
+
+    def ensure_has_source_dir(self, parent_dir):
+        """Ensure that a source_dir is set.
+
+        This will create a temporary build dir if the name of the requirement
+        isn't known yet.
+
+        :param parent_dir: The ideal pip parent_dir for the source_dir.
+            Generally src_dir for editables and build_dir for sdists.
+        :return: self.source_dir
+        """
+        if self.source_dir is None:
+            self.source_dir = self.build_location(parent_dir)
+        return self.source_dir
+
+    def get_install_args(self, global_options, record_filename, root, prefix):
+        install_args = [sys.executable, "-u"]
+        install_args.append('-c')
+        install_args.append(SETUPTOOLS_SHIM % self.setup_py)
+        install_args += list(global_options) + \
+            ['install', '--record', record_filename]
+
+        if not self.as_egg:
+            install_args += ['--single-version-externally-managed']
+
+        if root is not None:
+            install_args += ['--root', root]
+        if prefix is not None:
+            install_args += ['--prefix', prefix]
+
+        if self.pycompile:
+            install_args += ["--compile"]
+        else:
+            install_args += ["--no-compile"]
+
+        if running_under_virtualenv():
+            py_ver_str = 'python' + sysconfig.get_python_version()
+            install_args += ['--install-headers',
+                             os.path.join(sys.prefix, 'include', 'site',
+                                          py_ver_str, self.name)]
+
+        return install_args
+
+    def remove_temporary_source(self):
+        """Remove the source files from this requirement, if they are marked
+        for deletion"""
+        if self.source_dir and os.path.exists(
+                os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)):
+            logger.debug('Removing source in %s', self.source_dir)
+            rmtree(self.source_dir)
+        self.source_dir = None
+        if self._temp_build_dir and os.path.exists(self._temp_build_dir):
+            rmtree(self._temp_build_dir)
+        self._temp_build_dir = None
+
+    def install_editable(self, install_options,
+                         global_options=(), prefix=None):
+        logger.info('Running setup.py develop for %s', self.name)
+
+        if self.isolated:
+            global_options = list(global_options) + ["--no-user-cfg"]
+
+        if prefix:
+            prefix_param = ['--prefix={0}'.format(prefix)]
+            install_options = list(install_options) + prefix_param
+
+        with indent_log():
+            # FIXME: should we do --install-headers here too?
+            call_subprocess(
+                [
+                    sys.executable,
+                    '-c',
+                    SETUPTOOLS_SHIM % self.setup_py
+                ] +
+                list(global_options) +
+                ['develop', '--no-deps'] +
+                list(install_options),
+
+                cwd=self.setup_py_dir,
+                show_stdout=False)
+
+        self.install_succeeded = True
+
+    def check_if_exists(self):
+        """Find an installed distribution that satisfies or conflicts
+        with this requirement, and set self.satisfied_by or
+        self.conflicts_with appropriately.
+        """
+        if self.req is None:
+            return False
+        try:
+            # get_distribution() will resolve the entire list of requirements
+            # anyway, and we've already determined that we need the requirement
+            # in question, so strip the marker so that we don't try to
+            # evaluate it.
+            no_marker = Requirement(str(self.req))
+            no_marker.marker = None
+            self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
+            if self.editable and self.satisfied_by:
+                self.conflicts_with = self.satisfied_by
+                # when installing editables, nothing pre-existing should ever
+                # satisfy
+                self.satisfied_by = None
+                return True
+        except pkg_resources.DistributionNotFound:
+            return False
+        except pkg_resources.VersionConflict:
+            existing_dist = pkg_resources.get_distribution(
+                self.req.name
+            )
+            if self.use_user_site:
+                if dist_in_usersite(existing_dist):
+                    self.conflicts_with = existing_dist
+                elif (running_under_virtualenv() and
+                        dist_in_site_packages(existing_dist)):
+                    raise InstallationError(
+                        "Will not install to the user site because it will "
+                        "lack sys.path precedence to %s in %s" %
+                        (existing_dist.project_name, existing_dist.location)
+                    )
+            else:
+                self.conflicts_with = existing_dist
+        return True
+
+    @property
+    def is_wheel(self):
+        return self.link and self.link.is_wheel
+
+    def move_wheel_files(self, wheeldir, root=None, prefix=None):
+        move_wheel_files(
+            self.name, self.req, wheeldir,
+            user=self.use_user_site,
+            home=self.target_dir,
+            root=root,
+            prefix=prefix,
+            pycompile=self.pycompile,
+            isolated=self.isolated,
+        )
+
+    def get_dist(self):
+        """Return a pkg_resources.Distribution built from self.egg_info_path"""
+        egg_info = self.egg_info_path('').rstrip('/')
+        base_dir = os.path.dirname(egg_info)
+        metadata = pkg_resources.PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        return pkg_resources.Distribution(
+            os.path.dirname(egg_info),
+            project_name=dist_name,
+            metadata=metadata)
+
+    @property
+    def has_hash_options(self):
+        """Return whether any known-good hashes are specified as options.
+
+        These activate --require-hashes mode; hashes specified as part of a
+        URL do not.
+
+        """
+        return bool(self.options.get('hashes', {}))
+
+    def hashes(self, trust_internet=True):
+        """Return a hash-comparer that considers my option- and URL-based
+        hashes to be known-good.
+
+        Hashes in URLs--ones embedded in the requirements file, not ones
+        downloaded from an index server--are almost peers with ones from
+        flags. They satisfy --require-hashes (whether it was implicitly or
+        explicitly activated) but do not activate it. md5 and sha224 are not
+        allowed in flags, which should nudge people toward good algos. We
+        always OR all hashes together, even ones from URLs.
+
+        :param trust_internet: Whether to trust URL-based (#md5=...) hashes
+            downloaded from the internet, as by populate_link()
+
+        """
+        good_hashes = self.options.get('hashes', {}).copy()
+        link = self.link if trust_internet else self.original_link
+        if link and link.hash:
+            good_hashes.setdefault(link.hash_name, []).append(link.hash)
+        return Hashes(good_hashes)
+
+
+def _strip_postfix(req):
+    """
+        Strip req postfix ( -dev, 0.2, etc )
+    """
+    # FIXME: use package_to_requirement?
+    match = re.search(r'^(.*?)(?:-dev|-\d.*)$', req)
+    if match:
+        # Strip off -dev, -0.2, etc.
+        req = match.group(1)
+    return req
+
+
+def parse_editable(editable_req, default_vcs=None):
+    """Parses an editable requirement into:
+        - a requirement name
+        - an URL
+        - extras
+        - editable options
+    Accepted requirements:
+        svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir
+        .[some_extra]
+    """
+
+    from pip.index import Link
+
+    url = editable_req
+    extras = None
+
+    # If a file path is specified with extras, strip off the extras.
+    m = re.match(r'^(.+)(\[[^\]]+\])$', url)
+    if m:
+        url_no_extras = m.group(1)
+        extras = m.group(2)
+    else:
+        url_no_extras = url
+
+    if os.path.isdir(url_no_extras):
+        if not os.path.exists(os.path.join(url_no_extras, 'setup.py')):
+            raise InstallationError(
+                "Directory %r is not installable. File 'setup.py' not found." %
+                url_no_extras
+            )
+        # Treating it as code that has already been checked out
+        url_no_extras = path_to_url(url_no_extras)
+
+    if url_no_extras.lower().startswith('file:'):
+        package_name = Link(url_no_extras).egg_fragment
+        if extras:
+            return (
+                package_name,
+                url_no_extras,
+                Requirement("placeholder" + extras.lower()).extras,
+            )
+        else:
+            return package_name, url_no_extras, None
+
+    for version_control in vcs:
+        if url.lower().startswith('%s:' % version_control):
+            url = '%s+%s' % (version_control, url)
+            break
+
+    if '+' not in url:
+        if default_vcs:
+            warnings.warn(
+                "--default-vcs has been deprecated and will be removed in "
+                "the future.",
+                RemovedInPip10Warning,
+            )
+            url = default_vcs + '+' + url
+        else:
+            raise InstallationError(
+                '%s should either be a path to a local project or a VCS url '
+                'beginning with svn+, git+, hg+, or bzr+' %
+                editable_req
+            )
+
+    vc_type = url.split('+', 1)[0].lower()
+
+    if not vcs.get_backend(vc_type):
+        error_message = 'For --editable=%s only ' % editable_req + \
+            ', '.join([backend.name + '+URL' for backend in vcs.backends]) + \
+            ' is currently supported'
+        raise InstallationError(error_message)
+
+    package_name = Link(url).egg_fragment
+    if not package_name:
+        raise InstallationError(
+            "Could not detect requirement name, please specify one with #egg="
+        )
+    if not package_name:
+        raise InstallationError(
+            '--editable=%s is not the right format; it must have '
+            '#egg=Package' % editable_req
+        )
+    return _strip_postfix(package_name), url, None
diff --git a/venv/lib/python3.5/site-packages/pip/req/req_set.py b/venv/lib/python3.5/site-packages/pip/req/req_set.py
new file mode 100644
index 0000000..76aec06
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/req/req_set.py
@@ -0,0 +1,798 @@
+from __future__ import absolute_import
+
+from collections import defaultdict
+from itertools import chain
+import logging
+import os
+
+from pip._vendor import pkg_resources
+from pip._vendor import requests
+
+from pip.compat import expanduser
+from pip.download import (is_file_url, is_dir_url, is_vcs_url, url_to_path,
+                          unpack_url)
+from pip.exceptions import (InstallationError, BestVersionAlreadyInstalled,
+                            DistributionNotFound, PreviousBuildDirError,
+                            HashError, HashErrors, HashUnpinned,
+                            DirectoryUrlHashUnsupported, VcsHashUnsupported,
+                            UnsupportedPythonVersion)
+from pip.req.req_install import InstallRequirement
+from pip.utils import (
+    display_path, dist_in_usersite, ensure_dir, normalize_path)
+from pip.utils.hashes import MissingHashes
+from pip.utils.logging import indent_log
+from pip.utils.packaging import check_dist_requires_python
+from pip.vcs import vcs
+from pip.wheel import Wheel
+
+logger = logging.getLogger(__name__)
+
+
+class Requirements(object):
+
+    def __init__(self):
+        self._keys = []
+        self._dict = {}
+
+    def keys(self):
+        return self._keys
+
+    def values(self):
+        return [self._dict[key] for key in self._keys]
+
+    def __contains__(self, item):
+        return item in self._keys
+
+    def __setitem__(self, key, value):
+        if key not in self._keys:
+            self._keys.append(key)
+        self._dict[key] = value
+
+    def __getitem__(self, key):
+        return self._dict[key]
+
+    def __repr__(self):
+        values = ['%s: %s' % (repr(k), repr(self[k])) for k in self.keys()]
+        return 'Requirements({%s})' % ', '.join(values)
+
+
+class DistAbstraction(object):
+    """Abstracts out the wheel vs non-wheel prepare_files logic.
+
+    The requirements for anything installable are as follows:
+     - we must be able to determine the requirement name
+       (or we can't correctly handle the non-upgrade case).
+     - we must be able to generate a list of run-time dependencies
+       without installing any additional packages (or we would
+       have to either burn time by doing temporary isolated installs
+       or alternatively violate pips 'don't start installing unless
+       all requirements are available' rule - neither of which are
+       desirable).
+     - for packages with setup requirements, we must also be able
+       to determine their requirements without installing additional
+       packages (for the same reason as run-time dependencies)
+     - we must be able to create a Distribution object exposing the
+       above metadata.
+    """
+
+    def __init__(self, req_to_install):
+        self.req_to_install = req_to_install
+
+    def dist(self, finder):
+        """Return a setuptools Dist object."""
+        raise NotImplementedError(self.dist)
+
+    def prep_for_dist(self):
+        """Ensure that we can get a Dist for this requirement."""
+        raise NotImplementedError(self.dist)
+
+
+def make_abstract_dist(req_to_install):
+    """Factory to make an abstract dist object.
+
+    Preconditions: Either an editable req with a source_dir, or satisfied_by or
+    a wheel link, or a non-editable req with a source_dir.
+
+    :return: A concrete DistAbstraction.
+    """
+    if req_to_install.editable:
+        return IsSDist(req_to_install)
+    elif req_to_install.link and req_to_install.link.is_wheel:
+        return IsWheel(req_to_install)
+    else:
+        return IsSDist(req_to_install)
+
+
+class IsWheel(DistAbstraction):
+
+    def dist(self, finder):
+        return list(pkg_resources.find_distributions(
+            self.req_to_install.source_dir))[0]
+
+    def prep_for_dist(self):
+        # FIXME:https://github.com/pypa/pip/issues/1112
+        pass
+
+
+class IsSDist(DistAbstraction):
+
+    def dist(self, finder):
+        dist = self.req_to_install.get_dist()
+        # FIXME: shouldn't be globally added:
+        if dist.has_metadata('dependency_links.txt'):
+            finder.add_dependency_links(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+        return dist
+
+    def prep_for_dist(self):
+        self.req_to_install.run_egg_info()
+        self.req_to_install.assert_source_matches_version()
+
+
+class Installed(DistAbstraction):
+
+    def dist(self, finder):
+        return self.req_to_install.satisfied_by
+
+    def prep_for_dist(self):
+        pass
+
+
+class RequirementSet(object):
+
+    def __init__(self, build_dir, src_dir, download_dir, upgrade=False,
+                 upgrade_strategy=None, ignore_installed=False, as_egg=False,
+                 target_dir=None, ignore_dependencies=False,
+                 force_reinstall=False, use_user_site=False, session=None,
+                 pycompile=True, isolated=False, wheel_download_dir=None,
+                 wheel_cache=None, require_hashes=False,
+                 ignore_requires_python=False):
+        """Create a RequirementSet.
+
+        :param wheel_download_dir: Where still-packed .whl files should be
+            written to. If None they are written to the download_dir parameter.
+            Separate to download_dir to permit only keeping wheel archives for
+            pip wheel.
+        :param download_dir: Where still packed archives should be written to.
+            If None they are not saved, and are deleted immediately after
+            unpacking.
+        :param wheel_cache: The pip wheel cache, for passing to
+            InstallRequirement.
+        """
+        if session is None:
+            raise TypeError(
+                "RequirementSet() missing 1 required keyword argument: "
+                "'session'"
+            )
+
+        self.build_dir = build_dir
+        self.src_dir = src_dir
+        # XXX: download_dir and wheel_download_dir overlap semantically and may
+        # be combined if we're willing to have non-wheel archives present in
+        # the wheelhouse output by 'pip wheel'.
+        self.download_dir = download_dir
+        self.upgrade = upgrade
+        self.upgrade_strategy = upgrade_strategy
+        self.ignore_installed = ignore_installed
+        self.force_reinstall = force_reinstall
+        self.requirements = Requirements()
+        # Mapping of alias: real_name
+        self.requirement_aliases = {}
+        self.unnamed_requirements = []
+        self.ignore_dependencies = ignore_dependencies
+        self.ignore_requires_python = ignore_requires_python
+        self.successfully_downloaded = []
+        self.successfully_installed = []
+        self.reqs_to_cleanup = []
+        self.as_egg = as_egg
+        self.use_user_site = use_user_site
+        self.target_dir = target_dir  # set from --target option
+        self.session = session
+        self.pycompile = pycompile
+        self.isolated = isolated
+        if wheel_download_dir:
+            wheel_download_dir = normalize_path(wheel_download_dir)
+        self.wheel_download_dir = wheel_download_dir
+        self._wheel_cache = wheel_cache
+        self.require_hashes = require_hashes
+        # Maps from install_req -> dependencies_of_install_req
+        self._dependencies = defaultdict(list)
+
+    def __str__(self):
+        reqs = [req for req in self.requirements.values()
+                if not req.comes_from]
+        reqs.sort(key=lambda req: req.name.lower())
+        return ' '.join([str(req.req) for req in reqs])
+
+    def __repr__(self):
+        reqs = [req for req in self.requirements.values()]
+        reqs.sort(key=lambda req: req.name.lower())
+        reqs_str = ', '.join([str(req.req) for req in reqs])
+        return ('<%s object; %d requirement(s): %s>'
+                % (self.__class__.__name__, len(reqs), reqs_str))
+
+    def add_requirement(self, install_req, parent_req_name=None,
+                        extras_requested=None):
+        """Add install_req as a requirement to install.
+
+        :param parent_req_name: The name of the requirement that needed this
+            added. The name is used because when multiple unnamed requirements
+            resolve to the same name, we could otherwise end up with dependency
+            links that point outside the Requirements set. parent_req must
+            already be added. Note that None implies that this is a user
+            supplied requirement, vs an inferred one.
+        :param extras_requested: an iterable of extras used to evaluate the
+            environement markers.
+        :return: Additional requirements to scan. That is either [] if
+            the requirement is not applicable, or [install_req] if the
+            requirement is applicable and has just been added.
+        """
+        name = install_req.name
+        if not install_req.match_markers(extras_requested):
+            logger.warning("Ignoring %s: markers '%s' don't match your "
+                           "environment", install_req.name,
+                           install_req.markers)
+            return []
+
+        # This check has to come after we filter requirements with the
+        # environment markers.
+        if install_req.link and install_req.link.is_wheel:
+            wheel = Wheel(install_req.link.filename)
+            if not wheel.supported():
+                raise InstallationError(
+                    "%s is not a supported wheel on this platform." %
+                    wheel.filename
+                )
+
+        install_req.as_egg = self.as_egg
+        install_req.use_user_site = self.use_user_site
+        install_req.target_dir = self.target_dir
+        install_req.pycompile = self.pycompile
+        install_req.is_direct = (parent_req_name is None)
+
+        if not name:
+            # url or path requirement w/o an egg fragment
+            self.unnamed_requirements.append(install_req)
+            return [install_req]
+        else:
+            try:
+                existing_req = self.get_requirement(name)
+            except KeyError:
+                existing_req = None
+            if (parent_req_name is None and existing_req and not
+                    existing_req.constraint and
+                    existing_req.extras == install_req.extras and not
+                    existing_req.req.specifier == install_req.req.specifier):
+                raise InstallationError(
+                    'Double requirement given: %s (already in %s, name=%r)'
+                    % (install_req, existing_req, name))
+            if not existing_req:
+                # Add requirement
+                self.requirements[name] = install_req
+                # FIXME: what about other normalizations?  E.g., _ vs. -?
+                if name.lower() != name:
+                    self.requirement_aliases[name.lower()] = name
+                result = [install_req]
+            else:
+                # Assume there's no need to scan, and that we've already
+                # encountered this for scanning.
+                result = []
+                if not install_req.constraint and existing_req.constraint:
+                    if (install_req.link and not (existing_req.link and
+                       install_req.link.path == existing_req.link.path)):
+                        self.reqs_to_cleanup.append(install_req)
+                        raise InstallationError(
+                            "Could not satisfy constraints for '%s': "
+                            "installation from path or url cannot be "
+                            "constrained to a version" % name)
+                    # If we're now installing a constraint, mark the existing
+                    # object for real installation.
+                    existing_req.constraint = False
+                    existing_req.extras = tuple(
+                        sorted(set(existing_req.extras).union(
+                               set(install_req.extras))))
+                    logger.debug("Setting %s extras to: %s",
+                                 existing_req, existing_req.extras)
+                    # And now we need to scan this.
+                    result = [existing_req]
+                # Canonicalise to the already-added object for the backref
+                # check below.
+                install_req = existing_req
+            if parent_req_name:
+                parent_req = self.get_requirement(parent_req_name)
+                self._dependencies[parent_req].append(install_req)
+            return result
+
+    def has_requirement(self, project_name):
+        name = project_name.lower()
+        if (name in self.requirements and
+           not self.requirements[name].constraint or
+           name in self.requirement_aliases and
+           not self.requirements[self.requirement_aliases[name]].constraint):
+            return True
+        return False
+
+    @property
+    def has_requirements(self):
+        return list(req for req in self.requirements.values() if not
+                    req.constraint) or self.unnamed_requirements
+
+    @property
+    def is_download(self):
+        if self.download_dir:
+            self.download_dir = expanduser(self.download_dir)
+            if os.path.exists(self.download_dir):
+                return True
+            else:
+                logger.critical('Could not find download directory')
+                raise InstallationError(
+                    "Could not find or access download directory '%s'"
+                    % display_path(self.download_dir))
+        return False
+
+    def get_requirement(self, project_name):
+        for name in project_name, project_name.lower():
+            if name in self.requirements:
+                return self.requirements[name]
+            if name in self.requirement_aliases:
+                return self.requirements[self.requirement_aliases[name]]
+        raise KeyError("No project with the name %r" % project_name)
+
+    def uninstall(self, auto_confirm=False):
+        for req in self.requirements.values():
+            if req.constraint:
+                continue
+            req.uninstall(auto_confirm=auto_confirm)
+            req.commit_uninstall()
+
+    def prepare_files(self, finder):
+        """
+        Prepare process. Create temp directories, download and/or unpack files.
+        """
+        # make the wheelhouse
+        if self.wheel_download_dir:
+            ensure_dir(self.wheel_download_dir)
+
+        # If any top-level requirement has a hash specified, enter
+        # hash-checking mode, which requires hashes from all.
+        root_reqs = self.unnamed_requirements + self.requirements.values()
+        require_hashes = (self.require_hashes or
+                          any(req.has_hash_options for req in root_reqs))
+        if require_hashes and self.as_egg:
+            raise InstallationError(
+                '--egg is not allowed with --require-hashes mode, since it '
+                'delegates dependency resolution to setuptools and could thus '
+                'result in installation of unhashed packages.')
+
+        # Actually prepare the files, and collect any exceptions. Most hash
+        # exceptions cannot be checked ahead of time, because
+        # req.populate_link() needs to be called before we can make decisions
+        # based on link type.
+        discovered_reqs = []
+        hash_errors = HashErrors()
+        for req in chain(root_reqs, discovered_reqs):
+            try:
+                discovered_reqs.extend(self._prepare_file(
+                    finder,
+                    req,
+                    require_hashes=require_hashes,
+                    ignore_dependencies=self.ignore_dependencies))
+            except HashError as exc:
+                exc.req = req
+                hash_errors.append(exc)
+
+        if hash_errors:
+            raise hash_errors
+
+    def _is_upgrade_allowed(self, req):
+        return self.upgrade and (
+            self.upgrade_strategy == "eager" or (
+                self.upgrade_strategy == "only-if-needed" and req.is_direct
+            )
+        )
+
+    def _check_skip_installed(self, req_to_install, finder):
+        """Check if req_to_install should be skipped.
+
+        This will check if the req is installed, and whether we should upgrade
+        or reinstall it, taking into account all the relevant user options.
+
+        After calling this req_to_install will only have satisfied_by set to
+        None if the req_to_install is to be upgraded/reinstalled etc. Any
+        other value will be a dist recording the current thing installed that
+        satisfies the requirement.
+
+        Note that for vcs urls and the like we can't assess skipping in this
+        routine - we simply identify that we need to pull the thing down,
+        then later on it is pulled down and introspected to assess upgrade/
+        reinstalls etc.
+
+        :return: A text reason for why it was skipped, or None.
+        """
+        # Check whether to upgrade/reinstall this req or not.
+        req_to_install.check_if_exists()
+        if req_to_install.satisfied_by:
+            upgrade_allowed = self._is_upgrade_allowed(req_to_install)
+
+            # Is the best version is installed.
+            best_installed = False
+
+            if upgrade_allowed:
+                # For link based requirements we have to pull the
+                # tree down and inspect to assess the version #, so
+                # its handled way down.
+                if not (self.force_reinstall or req_to_install.link):
+                    try:
+                        finder.find_requirement(
+                            req_to_install, upgrade_allowed)
+                    except BestVersionAlreadyInstalled:
+                        best_installed = True
+                    except DistributionNotFound:
+                        # No distribution found, so we squash the
+                        # error - it will be raised later when we
+                        # re-try later to do the install.
+                        # Why don't we just raise here?
+                        pass
+
+                if not best_installed:
+                    # don't uninstall conflict if user install and
+                    # conflict is not user install
+                    if not (self.use_user_site and not
+                            dist_in_usersite(req_to_install.satisfied_by)):
+                        req_to_install.conflicts_with = \
+                            req_to_install.satisfied_by
+                    req_to_install.satisfied_by = None
+
+            # Figure out a nice message to say why we're skipping this.
+            if best_installed:
+                skip_reason = 'already up-to-date'
+            elif self.upgrade_strategy == "only-if-needed":
+                skip_reason = 'not upgraded as not directly required'
+            else:
+                skip_reason = 'already satisfied'
+
+            return skip_reason
+        else:
+            return None
+
+    def _prepare_file(self,
+                      finder,
+                      req_to_install,
+                      require_hashes=False,
+                      ignore_dependencies=False):
+        """Prepare a single requirements file.
+
+        :return: A list of additional InstallRequirements to also install.
+        """
+        # Tell user what we are doing for this requirement:
+        # obtain (editable), skipping, processing (local url), collecting
+        # (remote url or package name)
+        if req_to_install.constraint or req_to_install.prepared:
+            return []
+
+        req_to_install.prepared = True
+
+        # ###################### #
+        # # print log messages # #
+        # ###################### #
+        if req_to_install.editable:
+            logger.info('Obtaining %s', req_to_install)
+        else:
+            # satisfied_by is only evaluated by calling _check_skip_installed,
+            # so it must be None here.
+            assert req_to_install.satisfied_by is None
+            if not self.ignore_installed:
+                skip_reason = self._check_skip_installed(
+                    req_to_install, finder)
+
+            if req_to_install.satisfied_by:
+                assert skip_reason is not None, (
+                    '_check_skip_installed returned None but '
+                    'req_to_install.satisfied_by is set to %r'
+                    % (req_to_install.satisfied_by,))
+                logger.info(
+                    'Requirement %s: %s', skip_reason,
+                    req_to_install)
+            else:
+                if (req_to_install.link and
+                        req_to_install.link.scheme == 'file'):
+                    path = url_to_path(req_to_install.link.url)
+                    logger.info('Processing %s', display_path(path))
+                else:
+                    logger.info('Collecting %s', req_to_install)
+
+        with indent_log():
+            # ################################ #
+            # # vcs update or unpack archive # #
+            # ################################ #
+            if req_to_install.editable:
+                if require_hashes:
+                    raise InstallationError(
+                        'The editable requirement %s cannot be installed when '
+                        'requiring hashes, because there is no single file to '
+                        'hash.' % req_to_install)
+                req_to_install.ensure_has_source_dir(self.src_dir)
+                req_to_install.update_editable(not self.is_download)
+                abstract_dist = make_abstract_dist(req_to_install)
+                abstract_dist.prep_for_dist()
+                if self.is_download:
+                    req_to_install.archive(self.download_dir)
+                req_to_install.check_if_exists()
+            elif req_to_install.satisfied_by:
+                if require_hashes:
+                    logger.debug(
+                        'Since it is already installed, we are trusting this '
+                        'package without checking its hash. To ensure a '
+                        'completely repeatable environment, install into an '
+                        'empty virtualenv.')
+                abstract_dist = Installed(req_to_install)
+            else:
+                # @@ if filesystem packages are not marked
+                # editable in a req, a non deterministic error
+                # occurs when the script attempts to unpack the
+                # build directory
+                req_to_install.ensure_has_source_dir(self.build_dir)
+                # If a checkout exists, it's unwise to keep going.  version
+                # inconsistencies are logged later, but do not fail the
+                # installation.
+                # FIXME: this won't upgrade when there's an existing
+                # package unpacked in `req_to_install.source_dir`
+                if os.path.exists(
+                        os.path.join(req_to_install.source_dir, 'setup.py')):
+                    raise PreviousBuildDirError(
+                        "pip can't proceed with requirements '%s' due to a"
+                        " pre-existing build directory (%s). This is "
+                        "likely due to a previous installation that failed"
+                        ". pip is being responsible and not assuming it "
+                        "can delete this. Please delete it and try again."
+                        % (req_to_install, req_to_install.source_dir)
+                    )
+                req_to_install.populate_link(
+                    finder,
+                    self._is_upgrade_allowed(req_to_install),
+                    require_hashes
+                )
+                # We can't hit this spot and have populate_link return None.
+                # req_to_install.satisfied_by is None here (because we're
+                # guarded) and upgrade has no impact except when satisfied_by
+                # is not None.
+                # Then inside find_requirement existing_applicable -> False
+                # If no new versions are found, DistributionNotFound is raised,
+                # otherwise a result is guaranteed.
+                assert req_to_install.link
+                link = req_to_install.link
+
+                # Now that we have the real link, we can tell what kind of
+                # requirements we have and raise some more informative errors
+                # than otherwise. (For example, we can raise VcsHashUnsupported
+                # for a VCS URL rather than HashMissing.)
+                if require_hashes:
+                    # We could check these first 2 conditions inside
+                    # unpack_url and save repetition of conditions, but then
+                    # we would report less-useful error messages for
+                    # unhashable requirements, complaining that there's no
+                    # hash provided.
+                    if is_vcs_url(link):
+                        raise VcsHashUnsupported()
+                    elif is_file_url(link) and is_dir_url(link):
+                        raise DirectoryUrlHashUnsupported()
+                    if (not req_to_install.original_link and
+                            not req_to_install.is_pinned):
+                        # Unpinned packages are asking for trouble when a new
+                        # version is uploaded. This isn't a security check, but
+                        # it saves users a surprising hash mismatch in the
+                        # future.
+                        #
+                        # file:/// URLs aren't pinnable, so don't complain
+                        # about them not being pinned.
+                        raise HashUnpinned()
+                hashes = req_to_install.hashes(
+                    trust_internet=not require_hashes)
+                if require_hashes and not hashes:
+                    # Known-good hashes are missing for this requirement, so
+                    # shim it with a facade object that will provoke hash
+                    # computation and then raise a HashMissing exception
+                    # showing the user what the hash should be.
+                    hashes = MissingHashes()
+
+                try:
+                    download_dir = self.download_dir
+                    # We always delete unpacked sdists after pip ran.
+                    autodelete_unpacked = True
+                    if req_to_install.link.is_wheel \
+                            and self.wheel_download_dir:
+                        # when doing 'pip wheel` we download wheels to a
+                        # dedicated dir.
+                        download_dir = self.wheel_download_dir
+                    if req_to_install.link.is_wheel:
+                        if download_dir:
+                            # When downloading, we only unpack wheels to get
+                            # metadata.
+                            autodelete_unpacked = True
+                        else:
+                            # When installing a wheel, we use the unpacked
+                            # wheel.
+                            autodelete_unpacked = False
+                    unpack_url(
+                        req_to_install.link, req_to_install.source_dir,
+                        download_dir, autodelete_unpacked,
+                        session=self.session, hashes=hashes)
+                except requests.HTTPError as exc:
+                    logger.critical(
+                        'Could not install requirement %s because '
+                        'of error %s',
+                        req_to_install,
+                        exc,
+                    )
+                    raise InstallationError(
+                        'Could not install requirement %s because '
+                        'of HTTP error %s for URL %s' %
+                        (req_to_install, exc, req_to_install.link)
+                    )
+                abstract_dist = make_abstract_dist(req_to_install)
+                abstract_dist.prep_for_dist()
+                if self.is_download:
+                    # Make a .zip of the source_dir we already created.
+                    if req_to_install.link.scheme in vcs.all_schemes:
+                        req_to_install.archive(self.download_dir)
+                # req_to_install.req is only avail after unpack for URL
+                # pkgs repeat check_if_exists to uninstall-on-upgrade
+                # (#14)
+                if not self.ignore_installed:
+                    req_to_install.check_if_exists()
+                if req_to_install.satisfied_by:
+                    if self.upgrade or self.ignore_installed:
+                        # don't uninstall conflict if user install and
+                        # conflict is not user install
+                        if not (self.use_user_site and not
+                                dist_in_usersite(
+                                    req_to_install.satisfied_by)):
+                            req_to_install.conflicts_with = \
+                                req_to_install.satisfied_by
+                        req_to_install.satisfied_by = None
+                    else:
+                        logger.info(
+                            'Requirement already satisfied (use '
+                            '--upgrade to upgrade): %s',
+                            req_to_install,
+                        )
+
+            # ###################### #
+            # # parse dependencies # #
+            # ###################### #
+            dist = abstract_dist.dist(finder)
+            try:
+                check_dist_requires_python(dist)
+            except UnsupportedPythonVersion as e:
+                if self.ignore_requires_python:
+                    logger.warning(e.args[0])
+                else:
+                    req_to_install.remove_temporary_source()
+                    raise
+            more_reqs = []
+
+            def add_req(subreq, extras_requested):
+                sub_install_req = InstallRequirement(
+                    str(subreq),
+                    req_to_install,
+                    isolated=self.isolated,
+                    wheel_cache=self._wheel_cache,
+                )
+                more_reqs.extend(self.add_requirement(
+                    sub_install_req, req_to_install.name,
+                    extras_requested=extras_requested))
+
+            # We add req_to_install before its dependencies, so that we
+            # can refer to it when adding dependencies.
+            if not self.has_requirement(req_to_install.name):
+                # 'unnamed' requirements will get added here
+                self.add_requirement(req_to_install, None)
+
+            if not ignore_dependencies:
+                if (req_to_install.extras):
+                    logger.debug(
+                        "Installing extra requirements: %r",
+                        ','.join(req_to_install.extras),
+                    )
+                missing_requested = sorted(
+                    set(req_to_install.extras) - set(dist.extras)
+                )
+                for missing in missing_requested:
+                    logger.warning(
+                        '%s does not provide the extra \'%s\'',
+                        dist, missing
+                    )
+
+                available_requested = sorted(
+                    set(dist.extras) & set(req_to_install.extras)
+                )
+                for subreq in dist.requires(available_requested):
+                    add_req(subreq, extras_requested=available_requested)
+
+            # cleanup tmp src
+            self.reqs_to_cleanup.append(req_to_install)
+
+            if not req_to_install.editable and not req_to_install.satisfied_by:
+                # XXX: --no-install leads this to report 'Successfully
+                # downloaded' for only non-editable reqs, even though we took
+                # action on them.
+                self.successfully_downloaded.append(req_to_install)
+
+        return more_reqs
+
+    def cleanup_files(self):
+        """Clean up files, remove builds."""
+        logger.debug('Cleaning up...')
+        with indent_log():
+            for req in self.reqs_to_cleanup:
+                req.remove_temporary_source()
+
+    def _to_install(self):
+        """Create the installation order.
+
+        The installation order is topological - requirements are installed
+        before the requiring thing. We break cycles at an arbitrary point,
+        and make no other guarantees.
+        """
+        # The current implementation, which we may change at any point
+        # installs the user specified things in the order given, except when
+        # dependencies must come earlier to achieve topological order.
+        order = []
+        ordered_reqs = set()
+
+        def schedule(req):
+            if req.satisfied_by or req in ordered_reqs:
+                return
+            if req.constraint:
+                return
+            ordered_reqs.add(req)
+            for dep in self._dependencies[req]:
+                schedule(dep)
+            order.append(req)
+        for install_req in self.requirements.values():
+            schedule(install_req)
+        return order
+
+    def install(self, install_options, global_options=(), *args, **kwargs):
+        """
+        Install everything in this set (after having downloaded and unpacked
+        the packages)
+        """
+        to_install = self._to_install()
+
+        if to_install:
+            logger.info(
+                'Installing collected packages: %s',
+                ', '.join([req.name for req in to_install]),
+            )
+
+        with indent_log():
+            for requirement in to_install:
+                if requirement.conflicts_with:
+                    logger.info(
+                        'Found existing installation: %s',
+                        requirement.conflicts_with,
+                    )
+                    with indent_log():
+                        requirement.uninstall(auto_confirm=True)
+                try:
+                    requirement.install(
+                        install_options,
+                        global_options,
+                        *args,
+                        **kwargs
+                    )
+                except:
+                    # if install did not succeed, rollback previous uninstall
+                    if (requirement.conflicts_with and not
+                            requirement.install_succeeded):
+                        requirement.rollback_uninstall()
+                    raise
+                else:
+                    if (requirement.conflicts_with and
+                            requirement.install_succeeded):
+                        requirement.commit_uninstall()
+                requirement.remove_temporary_source()
+
+        self.successfully_installed = to_install
diff --git a/venv/lib/python3.5/site-packages/pip/req/req_uninstall.py b/venv/lib/python3.5/site-packages/pip/req/req_uninstall.py
new file mode 100644
index 0000000..5248430
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/req/req_uninstall.py
@@ -0,0 +1,195 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+from pip.compat import uses_pycache, WINDOWS, cache_from_source
+from pip.exceptions import UninstallationError
+from pip.utils import rmtree, ask, is_local, renames, normalize_path
+from pip.utils.logging import indent_log
+
+
+logger = logging.getLogger(__name__)
+
+
+class UninstallPathSet(object):
+    """A set of file paths to be removed in the uninstallation of a
+    requirement."""
+    def __init__(self, dist):
+        self.paths = set()
+        self._refuse = set()
+        self.pth = {}
+        self.dist = dist
+        self.save_dir = None
+        self._moved_paths = []
+
+    def _permitted(self, path):
+        """
+        Return True if the given path is one we are permitted to
+        remove/modify, False otherwise.
+
+        """
+        return is_local(path)
+
+    def add(self, path):
+        head, tail = os.path.split(path)
+
+        # we normalize the head to resolve parent directory symlinks, but not
+        # the tail, since we only want to uninstall symlinks, not their targets
+        path = os.path.join(normalize_path(head), os.path.normcase(tail))
+
+        if not os.path.exists(path):
+            return
+        if self._permitted(path):
+            self.paths.add(path)
+        else:
+            self._refuse.add(path)
+
+        # __pycache__ files can show up after 'installed-files.txt' is created,
+        # due to imports
+        if os.path.splitext(path)[1] == '.py' and uses_pycache:
+            self.add(cache_from_source(path))
+
+    def add_pth(self, pth_file, entry):
+        pth_file = normalize_path(pth_file)
+        if self._permitted(pth_file):
+            if pth_file not in self.pth:
+                self.pth[pth_file] = UninstallPthEntries(pth_file)
+            self.pth[pth_file].add(entry)
+        else:
+            self._refuse.add(pth_file)
+
+    def compact(self, paths):
+        """Compact a path set to contain the minimal number of paths
+        necessary to contain all paths in the set. If /a/path/ and
+        /a/path/to/a/file.txt are both in the set, leave only the
+        shorter path."""
+        short_paths = set()
+        for path in sorted(paths, key=len):
+            if not any([
+                    (path.startswith(shortpath) and
+                     path[len(shortpath.rstrip(os.path.sep))] == os.path.sep)
+                    for shortpath in short_paths]):
+                short_paths.add(path)
+        return short_paths
+
+    def _stash(self, path):
+        return os.path.join(
+            self.save_dir, os.path.splitdrive(path)[1].lstrip(os.path.sep))
+
+    def remove(self, auto_confirm=False):
+        """Remove paths in ``self.paths`` with confirmation (unless
+        ``auto_confirm`` is True)."""
+        if not self.paths:
+            logger.info(
+                "Can't uninstall '%s'. No files were found to uninstall.",
+                self.dist.project_name,
+            )
+            return
+        logger.info(
+            'Uninstalling %s-%s:',
+            self.dist.project_name, self.dist.version
+        )
+
+        with indent_log():
+            paths = sorted(self.compact(self.paths))
+
+            if auto_confirm:
+                response = 'y'
+            else:
+                for path in paths:
+                    logger.info(path)
+                response = ask('Proceed (y/n)? ', ('y', 'n'))
+            if self._refuse:
+                logger.info('Not removing or modifying (outside of prefix):')
+                for path in self.compact(self._refuse):
+                    logger.info(path)
+            if response == 'y':
+                self.save_dir = tempfile.mkdtemp(suffix='-uninstall',
+                                                 prefix='pip-')
+                for path in paths:
+                    new_path = self._stash(path)
+                    logger.debug('Removing file or directory %s', path)
+                    self._moved_paths.append(path)
+                    renames(path, new_path)
+                for pth in self.pth.values():
+                    pth.remove()
+                logger.info(
+                    'Successfully uninstalled %s-%s',
+                    self.dist.project_name, self.dist.version
+                )
+
+    def rollback(self):
+        """Rollback the changes previously made by remove()."""
+        if self.save_dir is None:
+            logger.error(
+                "Can't roll back %s; was not uninstalled",
+                self.dist.project_name,
+            )
+            return False
+        logger.info('Rolling back uninstall of %s', self.dist.project_name)
+        for path in self._moved_paths:
+            tmp_path = self._stash(path)
+            logger.debug('Replacing %s', path)
+            renames(tmp_path, path)
+        for pth in self.pth.values():
+            pth.rollback()
+
+    def commit(self):
+        """Remove temporary save dir: rollback will no longer be possible."""
+        if self.save_dir is not None:
+            rmtree(self.save_dir)
+            self.save_dir = None
+            self._moved_paths = []
+
+
+class UninstallPthEntries(object):
+    def __init__(self, pth_file):
+        if not os.path.isfile(pth_file):
+            raise UninstallationError(
+                "Cannot remove entries from nonexistent file %s" % pth_file
+            )
+        self.file = pth_file
+        self.entries = set()
+        self._saved_lines = None
+
+    def add(self, entry):
+        entry = os.path.normcase(entry)
+        # On Windows, os.path.normcase converts the entry to use
+        # backslashes.  This is correct for entries that describe absolute
+        # paths outside of site-packages, but all the others use forward
+        # slashes.
+        if WINDOWS and not os.path.splitdrive(entry)[0]:
+            entry = entry.replace('\\', '/')
+        self.entries.add(entry)
+
+    def remove(self):
+        logger.debug('Removing pth entries from %s:', self.file)
+        with open(self.file, 'rb') as fh:
+            # windows uses '\r\n' with py3k, but uses '\n' with py2.x
+            lines = fh.readlines()
+            self._saved_lines = lines
+        if any(b'\r\n' in line for line in lines):
+            endline = '\r\n'
+        else:
+            endline = '\n'
+        for entry in self.entries:
+            try:
+                logger.debug('Removing entry: %s', entry)
+                lines.remove((entry + endline).encode("utf-8"))
+            except ValueError:
+                pass
+        with open(self.file, 'wb') as fh:
+            fh.writelines(lines)
+
+    def rollback(self):
+        if self._saved_lines is None:
+            logger.error(
+                'Cannot roll back changes to %s, none were made', self.file
+            )
+            return False
+        logger.debug('Rolling %s back to previous state', self.file)
+        with open(self.file, 'wb') as fh:
+            fh.writelines(self._saved_lines)
+        return True
diff --git a/venv/lib/python3.5/site-packages/pip/status_codes.py b/venv/lib/python3.5/site-packages/pip/status_codes.py
new file mode 100644
index 0000000..275360a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/status_codes.py
@@ -0,0 +1,8 @@
+from __future__ import absolute_import
+
+SUCCESS = 0
+ERROR = 1
+UNKNOWN_ERROR = 2
+VIRTUALENV_NOT_FOUND = 3
+PREVIOUS_BUILD_DIR_ERROR = 4
+NO_MATCHES_FOUND = 23
diff --git a/venv/lib/python3.5/site-packages/pip/utils/__init__.py b/venv/lib/python3.5/site-packages/pip/utils/__init__.py
new file mode 100644
index 0000000..815bd33
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/__init__.py
@@ -0,0 +1,852 @@
+from __future__ import absolute_import
+
+from collections import deque
+import contextlib
+import errno
+import io
+import locale
+# we have a submodule named 'logging' which would shadow this if we used the
+# regular name:
+import logging as std_logging
+import re
+import os
+import posixpath
+import shutil
+import stat
+import subprocess
+import sys
+import tarfile
+import zipfile
+
+from pip.exceptions import InstallationError
+from pip.compat import console_to_str, expanduser, stdlib_pkgs
+from pip.locations import (
+    site_packages, user_site, running_under_virtualenv, virtualenv_no_global,
+    write_delete_marker_file,
+)
+from pip._vendor import pkg_resources
+from pip._vendor.six.moves import input
+from pip._vendor.six import PY2
+from pip._vendor.retrying import retry
+
+if PY2:
+    from io import BytesIO as StringIO
+else:
+    from io import StringIO
+
+__all__ = ['rmtree', 'display_path', 'backup_dir',
+           'ask', 'splitext',
+           'format_size', 'is_installable_dir',
+           'is_svn_page', 'file_contents',
+           'split_leading_dir', 'has_leading_dir',
+           'normalize_path',
+           'renames', 'get_terminal_size', 'get_prog',
+           'unzip_file', 'untar_file', 'unpack_file', 'call_subprocess',
+           'captured_stdout', 'ensure_dir',
+           'ARCHIVE_EXTENSIONS', 'SUPPORTED_EXTENSIONS',
+           'get_installed_version']
+
+
+logger = std_logging.getLogger(__name__)
+
+BZ2_EXTENSIONS = ('.tar.bz2', '.tbz')
+XZ_EXTENSIONS = ('.tar.xz', '.txz', '.tlz', '.tar.lz', '.tar.lzma')
+ZIP_EXTENSIONS = ('.zip', '.whl')
+TAR_EXTENSIONS = ('.tar.gz', '.tgz', '.tar')
+ARCHIVE_EXTENSIONS = (
+    ZIP_EXTENSIONS + BZ2_EXTENSIONS + TAR_EXTENSIONS + XZ_EXTENSIONS)
+SUPPORTED_EXTENSIONS = ZIP_EXTENSIONS + TAR_EXTENSIONS
+try:
+    import bz2  # noqa
+    SUPPORTED_EXTENSIONS += BZ2_EXTENSIONS
+except ImportError:
+    logger.debug('bz2 module is not available')
+
+try:
+    # Only for Python 3.3+
+    import lzma  # noqa
+    SUPPORTED_EXTENSIONS += XZ_EXTENSIONS
+except ImportError:
+    logger.debug('lzma module is not available')
+
+
+def import_or_raise(pkg_or_module_string, ExceptionType, *args, **kwargs):
+    try:
+        return __import__(pkg_or_module_string)
+    except ImportError:
+        raise ExceptionType(*args, **kwargs)
+
+
+def ensure_dir(path):
+    """os.path.makedirs without EEXIST."""
+    try:
+        os.makedirs(path)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+
+
+def get_prog():
+    try:
+        if os.path.basename(sys.argv[0]) in ('__main__.py', '-c'):
+            return "%s -m pip" % sys.executable
+    except (AttributeError, TypeError, IndexError):
+        pass
+    return 'pip'
+
+
+# Retry every half second for up to 3 seconds
+@retry(stop_max_delay=3000, wait_fixed=500)
+def rmtree(dir, ignore_errors=False):
+    shutil.rmtree(dir, ignore_errors=ignore_errors,
+                  onerror=rmtree_errorhandler)
+
+
+def rmtree_errorhandler(func, path, exc_info):
+    """On Windows, the files in .svn are read-only, so when rmtree() tries to
+    remove them, an exception is thrown.  We catch that here, remove the
+    read-only attribute, and hopefully continue without problems."""
+    # if file type currently read only
+    if os.stat(path).st_mode & stat.S_IREAD:
+        # convert to read/write
+        os.chmod(path, stat.S_IWRITE)
+        # use the original function to repeat the operation
+        func(path)
+        return
+    else:
+        raise
+
+
+def display_path(path):
+    """Gives the display value for a given path, making it relative to cwd
+    if possible."""
+    path = os.path.normcase(os.path.abspath(path))
+    if sys.version_info[0] == 2:
+        path = path.decode(sys.getfilesystemencoding(), 'replace')
+        path = path.encode(sys.getdefaultencoding(), 'replace')
+    if path.startswith(os.getcwd() + os.path.sep):
+        path = '.' + path[len(os.getcwd()):]
+    return path
+
+
+def backup_dir(dir, ext='.bak'):
+    """Figure out the name of a directory to back up the given dir to
+    (adding .bak, .bak2, etc)"""
+    n = 1
+    extension = ext
+    while os.path.exists(dir + extension):
+        n += 1
+        extension = ext + str(n)
+    return dir + extension
+
+
+def ask_path_exists(message, options):
+    for action in os.environ.get('PIP_EXISTS_ACTION', '').split():
+        if action in options:
+            return action
+    return ask(message, options)
+
+
+def ask(message, options):
+    """Ask the message interactively, with the given possible responses"""
+    while 1:
+        if os.environ.get('PIP_NO_INPUT'):
+            raise Exception(
+                'No input was expected ($PIP_NO_INPUT set); question: %s' %
+                message
+            )
+        response = input(message)
+        response = response.strip().lower()
+        if response not in options:
+            print(
+                'Your response (%r) was not one of the expected responses: '
+                '%s' % (response, ', '.join(options))
+            )
+        else:
+            return response
+
+
+def format_size(bytes):
+    if bytes > 1000 * 1000:
+        return '%.1fMB' % (bytes / 1000.0 / 1000)
+    elif bytes > 10 * 1000:
+        return '%ikB' % (bytes / 1000)
+    elif bytes > 1000:
+        return '%.1fkB' % (bytes / 1000.0)
+    else:
+        return '%ibytes' % bytes
+
+
+def is_installable_dir(path):
+    """Return True if `path` is a directory containing a setup.py file."""
+    if not os.path.isdir(path):
+        return False
+    setup_py = os.path.join(path, 'setup.py')
+    if os.path.isfile(setup_py):
+        return True
+    return False
+
+
+def is_svn_page(html):
+    """
+    Returns true if the page appears to be the index page of an svn repository
+    """
+    return (re.search(r'<title>[^<]*Revision \d+:', html) and
+            re.search(r'Powered by (?:<a[^>]*?>)?Subversion', html, re.I))
+
+
+def file_contents(filename):
+    with open(filename, 'rb') as fp:
+        return fp.read().decode('utf-8')
+
+
+def read_chunks(file, size=io.DEFAULT_BUFFER_SIZE):
+    """Yield pieces of data from a file-like object until EOF."""
+    while True:
+        chunk = file.read(size)
+        if not chunk:
+            break
+        yield chunk
+
+
+def split_leading_dir(path):
+    path = path.lstrip('/').lstrip('\\')
+    if '/' in path and (('\\' in path and path.find('/') < path.find('\\')) or
+                        '\\' not in path):
+        return path.split('/', 1)
+    elif '\\' in path:
+        return path.split('\\', 1)
+    else:
+        return path, ''
+
+
+def has_leading_dir(paths):
+    """Returns true if all the paths have the same leading path name
+    (i.e., everything is in one subdirectory in an archive)"""
+    common_prefix = None
+    for path in paths:
+        prefix, rest = split_leading_dir(path)
+        if not prefix:
+            return False
+        elif common_prefix is None:
+            common_prefix = prefix
+        elif prefix != common_prefix:
+            return False
+    return True
+
+
+def normalize_path(path, resolve_symlinks=True):
+    """
+    Convert a path to its canonical, case-normalized, absolute version.
+
+    """
+    path = expanduser(path)
+    if resolve_symlinks:
+        path = os.path.realpath(path)
+    else:
+        path = os.path.abspath(path)
+    return os.path.normcase(path)
+
+
+def splitext(path):
+    """Like os.path.splitext, but take off .tar too"""
+    base, ext = posixpath.splitext(path)
+    if base.lower().endswith('.tar'):
+        ext = base[-4:] + ext
+        base = base[:-4]
+    return base, ext
+
+
+def renames(old, new):
+    """Like os.renames(), but handles renaming across devices."""
+    # Implementation borrowed from os.renames().
+    head, tail = os.path.split(new)
+    if head and tail and not os.path.exists(head):
+        os.makedirs(head)
+
+    shutil.move(old, new)
+
+    head, tail = os.path.split(old)
+    if head and tail:
+        try:
+            os.removedirs(head)
+        except OSError:
+            pass
+
+
+def is_local(path):
+    """
+    Return True if path is within sys.prefix, if we're running in a virtualenv.
+
+    If we're not in a virtualenv, all paths are considered "local."
+
+    """
+    if not running_under_virtualenv():
+        return True
+    return normalize_path(path).startswith(normalize_path(sys.prefix))
+
+
+def dist_is_local(dist):
+    """
+    Return True if given Distribution object is installed locally
+    (i.e. within current virtualenv).
+
+    Always True if we're not in a virtualenv.
+
+    """
+    return is_local(dist_location(dist))
+
+
+def dist_in_usersite(dist):
+    """
+    Return True if given Distribution is installed in user site.
+    """
+    norm_path = normalize_path(dist_location(dist))
+    return norm_path.startswith(normalize_path(user_site))
+
+
+def dist_in_site_packages(dist):
+    """
+    Return True if given Distribution is installed in
+    distutils.sysconfig.get_python_lib().
+    """
+    return normalize_path(
+        dist_location(dist)
+    ).startswith(normalize_path(site_packages))
+
+
+def dist_is_editable(dist):
+    """Is distribution an editable install?"""
+    for path_item in sys.path:
+        egg_link = os.path.join(path_item, dist.project_name + '.egg-link')
+        if os.path.isfile(egg_link):
+            return True
+    return False
+
+
+def get_installed_distributions(local_only=True,
+                                skip=stdlib_pkgs,
+                                include_editables=True,
+                                editables_only=False,
+                                user_only=False):
+    """
+    Return a list of installed Distribution objects.
+
+    If ``local_only`` is True (default), only return installations
+    local to the current virtualenv, if in a virtualenv.
+
+    ``skip`` argument is an iterable of lower-case project names to
+    ignore; defaults to stdlib_pkgs
+
+    If ``editables`` is False, don't report editables.
+
+    If ``editables_only`` is True , only report editables.
+
+    If ``user_only`` is True , only report installations in the user
+    site directory.
+
+    """
+    if local_only:
+        local_test = dist_is_local
+    else:
+        def local_test(d):
+            return True
+
+    if include_editables:
+        def editable_test(d):
+            return True
+    else:
+        def editable_test(d):
+            return not dist_is_editable(d)
+
+    if editables_only:
+        def editables_only_test(d):
+            return dist_is_editable(d)
+    else:
+        def editables_only_test(d):
+            return True
+
+    if user_only:
+        user_test = dist_in_usersite
+    else:
+        def user_test(d):
+            return True
+
+    return [d for d in pkg_resources.working_set
+            if local_test(d) and
+            d.key not in skip and
+            editable_test(d) and
+            editables_only_test(d) and
+            user_test(d)
+            ]
+
+
+def egg_link_path(dist):
+    """
+    Return the path for the .egg-link file if it exists, otherwise, None.
+
+    There's 3 scenarios:
+    1) not in a virtualenv
+       try to find in site.USER_SITE, then site_packages
+    2) in a no-global virtualenv
+       try to find in site_packages
+    3) in a yes-global virtualenv
+       try to find in site_packages, then site.USER_SITE
+       (don't look in global location)
+
+    For #1 and #3, there could be odd cases, where there's an egg-link in 2
+    locations.
+
+    This method will just return the first one found.
+    """
+    sites = []
+    if running_under_virtualenv():
+        if virtualenv_no_global():
+            sites.append(site_packages)
+        else:
+            sites.append(site_packages)
+            if user_site:
+                sites.append(user_site)
+    else:
+        if user_site:
+            sites.append(user_site)
+        sites.append(site_packages)
+
+    for site in sites:
+        egglink = os.path.join(site, dist.project_name) + '.egg-link'
+        if os.path.isfile(egglink):
+            return egglink
+
+
+def dist_location(dist):
+    """
+    Get the site-packages location of this distribution. Generally
+    this is dist.location, except in the case of develop-installed
+    packages, where dist.location is the source code location, and we
+    want to know where the egg-link file is.
+
+    """
+    egg_link = egg_link_path(dist)
+    if egg_link:
+        return egg_link
+    return dist.location
+
+
+def get_terminal_size():
+    """Returns a tuple (x, y) representing the width(x) and the height(x)
+    in characters of the terminal window."""
+    def ioctl_GWINSZ(fd):
+        try:
+            import fcntl
+            import termios
+            import struct
+            cr = struct.unpack(
+                'hh',
+                fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234')
+            )
+        except:
+            return None
+        if cr == (0, 0):
+            return None
+        return cr
+    cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
+    if not cr:
+        try:
+            fd = os.open(os.ctermid(), os.O_RDONLY)
+            cr = ioctl_GWINSZ(fd)
+            os.close(fd)
+        except:
+            pass
+    if not cr:
+        cr = (os.environ.get('LINES', 25), os.environ.get('COLUMNS', 80))
+    return int(cr[1]), int(cr[0])
+
+
+def current_umask():
+    """Get the current umask which involves having to set it temporarily."""
+    mask = os.umask(0)
+    os.umask(mask)
+    return mask
+
+
+def unzip_file(filename, location, flatten=True):
+    """
+    Unzip the file (with path `filename`) to the destination `location`.  All
+    files are written based on system defaults and umask (i.e. permissions are
+    not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written. Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    zipfp = open(filename, 'rb')
+    try:
+        zip = zipfile.ZipFile(zipfp, allowZip64=True)
+        leading = has_leading_dir(zip.namelist()) and flatten
+        for info in zip.infolist():
+            name = info.filename
+            data = zip.read(name)
+            fn = name
+            if leading:
+                fn = split_leading_dir(name)[1]
+            fn = os.path.join(location, fn)
+            dir = os.path.dirname(fn)
+            if fn.endswith('/') or fn.endswith('\\'):
+                # A directory
+                ensure_dir(fn)
+            else:
+                ensure_dir(dir)
+                fp = open(fn, 'wb')
+                try:
+                    fp.write(data)
+                finally:
+                    fp.close()
+                    mode = info.external_attr >> 16
+                    # if mode and regular file and any execute permissions for
+                    # user/group/world?
+                    if mode and stat.S_ISREG(mode) and mode & 0o111:
+                        # make dest file have execute for user/group/world
+                        # (chmod +x) no-op on windows per python docs
+                        os.chmod(fn, (0o777 - current_umask() | 0o111))
+    finally:
+        zipfp.close()
+
+
+def untar_file(filename, location):
+    """
+    Untar the file (with path `filename`) to the destination `location`.
+    All files are written based on system defaults and umask (i.e. permissions
+    are not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written.  Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    if filename.lower().endswith('.gz') or filename.lower().endswith('.tgz'):
+        mode = 'r:gz'
+    elif filename.lower().endswith(BZ2_EXTENSIONS):
+        mode = 'r:bz2'
+    elif filename.lower().endswith(XZ_EXTENSIONS):
+        mode = 'r:xz'
+    elif filename.lower().endswith('.tar'):
+        mode = 'r'
+    else:
+        logger.warning(
+            'Cannot determine compression type for file %s', filename,
+        )
+        mode = 'r:*'
+    tar = tarfile.open(filename, mode)
+    try:
+        # note: python<=2.5 doesn't seem to know about pax headers, filter them
+        leading = has_leading_dir([
+            member.name for member in tar.getmembers()
+            if member.name != 'pax_global_header'
+        ])
+        for member in tar.getmembers():
+            fn = member.name
+            if fn == 'pax_global_header':
+                continue
+            if leading:
+                fn = split_leading_dir(fn)[1]
+            path = os.path.join(location, fn)
+            if member.isdir():
+                ensure_dir(path)
+            elif member.issym():
+                try:
+                    tar._extract_member(member, path)
+                except Exception as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        'In the tar file %s the member %s is invalid: %s',
+                        filename, member.name, exc,
+                    )
+                    continue
+            else:
+                try:
+                    fp = tar.extractfile(member)
+                except (KeyError, AttributeError) as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        'In the tar file %s the member %s is invalid: %s',
+                        filename, member.name, exc,
+                    )
+                    continue
+                ensure_dir(os.path.dirname(path))
+                with open(path, 'wb') as destfp:
+                    shutil.copyfileobj(fp, destfp)
+                fp.close()
+                # Update the timestamp (useful for cython compiled files)
+                tar.utime(member, path)
+                # member have any execute permissions for user/group/world?
+                if member.mode & 0o111:
+                    # make dest file have execute for user/group/world
+                    # no-op on windows per python docs
+                    os.chmod(path, (0o777 - current_umask() | 0o111))
+    finally:
+        tar.close()
+
+
+def unpack_file(filename, location, content_type, link):
+    filename = os.path.realpath(filename)
+    if (content_type == 'application/zip' or
+            filename.lower().endswith(ZIP_EXTENSIONS) or
+            zipfile.is_zipfile(filename)):
+        unzip_file(
+            filename,
+            location,
+            flatten=not filename.endswith('.whl')
+        )
+    elif (content_type == 'application/x-gzip' or
+            tarfile.is_tarfile(filename) or
+            filename.lower().endswith(
+                TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
+        untar_file(filename, location)
+    elif (content_type and content_type.startswith('text/html') and
+            is_svn_page(file_contents(filename))):
+        # We don't really care about this
+        from pip.vcs.subversion import Subversion
+        Subversion('svn+' + link.url).unpack(location)
+    else:
+        # FIXME: handle?
+        # FIXME: magic signatures?
+        logger.critical(
+            'Cannot unpack file %s (downloaded from %s, content-type: %s); '
+            'cannot detect archive format',
+            filename, location, content_type,
+        )
+        raise InstallationError(
+            'Cannot determine archive format of %s' % location
+        )
+
+
+def call_subprocess(cmd, show_stdout=True, cwd=None,
+                    on_returncode='raise',
+                    command_desc=None,
+                    extra_environ=None, spinner=None):
+    # This function's handling of subprocess output is confusing and I
+    # previously broke it terribly, so as penance I will write a long comment
+    # explaining things.
+    #
+    # The obvious thing that affects output is the show_stdout=
+    # kwarg. show_stdout=True means, let the subprocess write directly to our
+    # stdout. Even though it is nominally the default, it is almost never used
+    # inside pip (and should not be used in new code without a very good
+    # reason); as of 2016-02-22 it is only used in a few places inside the VCS
+    # wrapper code. Ideally we should get rid of it entirely, because it
+    # creates a lot of complexity here for a rarely used feature.
+    #
+    # Most places in pip set show_stdout=False. What this means is:
+    # - We connect the child stdout to a pipe, which we read.
+    # - By default, we hide the output but show a spinner -- unless the
+    #   subprocess exits with an error, in which case we show the output.
+    # - If the --verbose option was passed (= loglevel is DEBUG), then we show
+    #   the output unconditionally. (But in this case we don't want to show
+    #   the output a second time if it turns out that there was an error.)
+    #
+    # stderr is always merged with stdout (even if show_stdout=True).
+    if show_stdout:
+        stdout = None
+    else:
+        stdout = subprocess.PIPE
+    if command_desc is None:
+        cmd_parts = []
+        for part in cmd:
+            if ' ' in part or '\n' in part or '"' in part or "'" in part:
+                part = '"%s"' % part.replace('"', '\\"')
+            cmd_parts.append(part)
+        command_desc = ' '.join(cmd_parts)
+    logger.debug("Running command %s", command_desc)
+    env = os.environ.copy()
+    if extra_environ:
+        env.update(extra_environ)
+    try:
+        proc = subprocess.Popen(
+            cmd, stderr=subprocess.STDOUT, stdin=None, stdout=stdout,
+            cwd=cwd, env=env)
+    except Exception as exc:
+        logger.critical(
+            "Error %s while executing command %s", exc, command_desc,
+        )
+        raise
+    if stdout is not None:
+        all_output = []
+        while True:
+            line = console_to_str(proc.stdout.readline())
+            if not line:
+                break
+            line = line.rstrip()
+            all_output.append(line + '\n')
+            if logger.getEffectiveLevel() <= std_logging.DEBUG:
+                # Show the line immediately
+                logger.debug(line)
+            else:
+                # Update the spinner
+                if spinner is not None:
+                    spinner.spin()
+    proc.wait()
+    if spinner is not None:
+        if proc.returncode:
+            spinner.finish("error")
+        else:
+            spinner.finish("done")
+    if proc.returncode:
+        if on_returncode == 'raise':
+            if (logger.getEffectiveLevel() > std_logging.DEBUG and
+                    not show_stdout):
+                logger.info(
+                    'Complete output from command %s:', command_desc,
+                )
+                logger.info(
+                    ''.join(all_output) +
+                    '\n----------------------------------------'
+                )
+            raise InstallationError(
+                'Command "%s" failed with error code %s in %s'
+                % (command_desc, proc.returncode, cwd))
+        elif on_returncode == 'warn':
+            logger.warning(
+                'Command "%s" had error code %s in %s',
+                command_desc, proc.returncode, cwd,
+            )
+        elif on_returncode == 'ignore':
+            pass
+        else:
+            raise ValueError('Invalid value: on_returncode=%s' %
+                             repr(on_returncode))
+    if not show_stdout:
+        return ''.join(all_output)
+
+
+def read_text_file(filename):
+    """Return the contents of *filename*.
+
+    Try to decode the file contents with utf-8, the preferred system encoding
+    (e.g., cp1252 on some Windows machines), and latin1, in that order.
+    Decoding a byte string with latin1 will never raise an error. In the worst
+    case, the returned string will contain some garbage characters.
+
+    """
+    with open(filename, 'rb') as fp:
+        data = fp.read()
+
+    encodings = ['utf-8', locale.getpreferredencoding(False), 'latin1']
+    for enc in encodings:
+        try:
+            data = data.decode(enc)
+        except UnicodeDecodeError:
+            continue
+        break
+
+    assert type(data) != bytes  # Latin1 should have worked.
+    return data
+
+
+def _make_build_dir(build_dir):
+    os.makedirs(build_dir)
+    write_delete_marker_file(build_dir)
+
+
+class FakeFile(object):
+    """Wrap a list of lines in an object with readline() to make
+    ConfigParser happy."""
+    def __init__(self, lines):
+        self._gen = (l for l in lines)
+
+    def readline(self):
+        try:
+            try:
+                return next(self._gen)
+            except NameError:
+                return self._gen.next()
+        except StopIteration:
+            return ''
+
+    def __iter__(self):
+        return self._gen
+
+
+class StreamWrapper(StringIO):
+
+    @classmethod
+    def from_stream(cls, orig_stream):
+        cls.orig_stream = orig_stream
+        return cls()
+
+    # compileall.compile_dir() needs stdout.encoding to print to stdout
+    @property
+    def encoding(self):
+        return self.orig_stream.encoding
+
+
+@contextlib.contextmanager
+def captured_output(stream_name):
+    """Return a context manager used by captured_stdout/stdin/stderr
+    that temporarily replaces the sys stream *stream_name* with a StringIO.
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    orig_stdout = getattr(sys, stream_name)
+    setattr(sys, stream_name, StreamWrapper.from_stream(orig_stdout))
+    try:
+        yield getattr(sys, stream_name)
+    finally:
+        setattr(sys, stream_name, orig_stdout)
+
+
+def captured_stdout():
+    """Capture the output of sys.stdout:
+
+       with captured_stdout() as stdout:
+           print('hello')
+       self.assertEqual(stdout.getvalue(), 'hello\n')
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    return captured_output('stdout')
+
+
+class cached_property(object):
+    """A property that is only computed once per instance and then replaces
+       itself with an ordinary attribute. Deleting the attribute resets the
+       property.
+
+       Source: https://github.com/bottlepy/bottle/blob/0.11.5/bottle.py#L175
+    """
+
+    def __init__(self, func):
+        self.__doc__ = getattr(func, '__doc__')
+        self.func = func
+
+    def __get__(self, obj, cls):
+        if obj is None:
+            # We're being accessed from the class itself, not from an object
+            return self
+        value = obj.__dict__[self.func.__name__] = self.func(obj)
+        return value
+
+
+def get_installed_version(dist_name, lookup_dirs=None):
+    """Get the installed version of dist_name avoiding pkg_resources cache"""
+    # Create a requirement that we'll look for inside of setuptools.
+    req = pkg_resources.Requirement.parse(dist_name)
+
+    # We want to avoid having this cached, so we need to construct a new
+    # working set each time.
+    if lookup_dirs is None:
+        working_set = pkg_resources.WorkingSet()
+    else:
+        working_set = pkg_resources.WorkingSet(lookup_dirs)
+
+    # Get the installed distribution from our working set
+    dist = working_set.find(req)
+
+    # Check to see if we got an installed distribution or not, if we did
+    # we want to return it's version.
+    return dist.version if dist else None
+
+
+def consume(iterator):
+    """Consume an iterable at C speed."""
+    deque(iterator, maxlen=0)
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diff --git a/venv/lib/python3.5/site-packages/pip/utils/appdirs.py b/venv/lib/python3.5/site-packages/pip/utils/appdirs.py
new file mode 100644
index 0000000..9b82801
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/appdirs.py
@@ -0,0 +1,248 @@
+"""
+This code was taken from https://github.com/ActiveState/appdirs and modified
+to suit our purposes.
+"""
+from __future__ import absolute_import
+
+import os
+import sys
+
+from pip.compat import WINDOWS, expanduser
+from pip._vendor.six import PY2, text_type
+
+
+def user_cache_dir(appname):
+    r"""
+    Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+
+    Typical user cache directories are:
+        macOS:      ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Windows:    C:\Users\<username>\AppData\Local\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go
+    in the `CSIDL_LOCAL_APPDATA` directory. This is identical to the
+    non-roaming app data dir (the default returned by `user_data_dir`). Apps
+    typically put cache data somewhere *under* the given dir here. Some
+    examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    """
+    if WINDOWS:
+        # Get the base path
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+
+        # When using Python 2, return paths as bytes on Windows like we do on
+        # other operating systems. See helper function docs for more details.
+        if PY2 and isinstance(path, text_type):
+            path = _win_path_to_bytes(path)
+
+        # Add our app name and Cache directory to it
+        path = os.path.join(path, appname, "Cache")
+    elif sys.platform == "darwin":
+        # Get the base path
+        path = expanduser("~/Library/Caches")
+
+        # Add our app name to it
+        path = os.path.join(path, appname)
+    else:
+        # Get the base path
+        path = os.getenv("XDG_CACHE_HOME", expanduser("~/.cache"))
+
+        # Add our app name to it
+        path = os.path.join(path, appname)
+
+    return path
+
+
+def user_data_dir(appname, roaming=False):
+    """
+    Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in
+                                $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\ ...
+                                ...Application Data\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local ...
+                                ...Settings\Application Data\<AppName>
+        Win 7  (not roaming):   C:\\Users\<username>\AppData\Local\<AppName>
+        Win 7  (roaming):       C:\\Users\<username>\AppData\Roaming\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if WINDOWS:
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.join(os.path.normpath(_get_win_folder(const)), appname)
+    elif sys.platform == "darwin":
+        path = os.path.join(
+            expanduser('~/Library/Application Support/'),
+            appname,
+        )
+    else:
+        path = os.path.join(
+            os.getenv('XDG_DATA_HOME', expanduser("~/.local/share")),
+            appname,
+        )
+
+    return path
+
+
+def user_config_dir(appname, roaming=True):
+    """Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "roaming" (boolean, default True) can be set False to not use the
+            Windows roaming appdata directory. That means that for users on a
+            Windows network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  same as user_data_dir
+        Unix:                   ~/.config/<AppName>
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by default "~/.config/<AppName>".
+    """
+    if WINDOWS:
+        path = user_data_dir(appname, roaming=roaming)
+    elif sys.platform == "darwin":
+        path = user_data_dir(appname)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', expanduser("~/.config"))
+        path = os.path.join(path, appname)
+
+    return path
+
+
+# for the discussion regarding site_config_dirs locations
+# see <https://github.com/pypa/pip/issues/1733>
+def site_config_dirs(appname):
+    """Return a list of potential user-shared config dirs for this application.
+
+        "appname" is the name of application.
+
+    Typical user config directories are:
+        macOS:      /Library/Application Support/<AppName>/
+        Unix:       /etc or $XDG_CONFIG_DIRS[i]/<AppName>/ for each value in
+                    $XDG_CONFIG_DIRS
+        Win XP:     C:\Documents and Settings\All Users\Application ...
+                    ...Data\<AppName>\
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory
+                    on Vista.)
+        Win 7:      Hidden, but writeable on Win 7:
+                    C:\ProgramData\<AppName>\
+    """
+    if WINDOWS:
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        pathlist = [os.path.join(path, appname)]
+    elif sys.platform == 'darwin':
+        pathlist = [os.path.join('/Library/Application Support', appname)]
+    else:
+        # try looking in $XDG_CONFIG_DIRS
+        xdg_config_dirs = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        if xdg_config_dirs:
+            pathlist = [
+                os.path.join(expanduser(x), appname)
+                for x in xdg_config_dirs.split(os.pathsep)
+            ]
+        else:
+            pathlist = []
+
+        # always look in /etc directly as well
+        pathlist.append('/etc')
+
+    return pathlist
+
+
+# -- Windows support functions --
+
+def _get_win_folder_from_registry(csidl_name):
+    """
+    This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    directory, _type = _winreg.QueryValueEx(key, shell_folder_name)
+    return directory
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+if WINDOWS:
+    try:
+        import ctypes
+        _get_win_folder = _get_win_folder_with_ctypes
+    except ImportError:
+        _get_win_folder = _get_win_folder_from_registry
+
+
+def _win_path_to_bytes(path):
+    """Encode Windows paths to bytes. Only used on Python 2.
+
+    Motivation is to be consistent with other operating systems where paths
+    are also returned as bytes. This avoids problems mixing bytes and Unicode
+    elsewhere in the codebase. For more details and discussion see
+    <https://github.com/pypa/pip/issues/3463>.
+
+    If encoding using ASCII and MBCS fails, return the original Unicode path.
+    """
+    for encoding in ('ASCII', 'MBCS'):
+        try:
+            return path.encode(encoding)
+        except (UnicodeEncodeError, LookupError):
+            pass
+    return path
diff --git a/venv/lib/python3.5/site-packages/pip/utils/build.py b/venv/lib/python3.5/site-packages/pip/utils/build.py
new file mode 100644
index 0000000..fc65cfa
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/build.py
@@ -0,0 +1,42 @@
+from __future__ import absolute_import
+
+import os.path
+import tempfile
+
+from pip.utils import rmtree
+
+
+class BuildDirectory(object):
+
+    def __init__(self, name=None, delete=None):
+        # If we were not given an explicit directory, and we were not given an
+        # explicit delete option, then we'll default to deleting.
+        if name is None and delete is None:
+            delete = True
+
+        if name is None:
+            # We realpath here because some systems have their default tmpdir
+            # symlinked to another directory.  This tends to confuse build
+            # scripts, so we canonicalize the path by traversing potential
+            # symlinks here.
+            name = os.path.realpath(tempfile.mkdtemp(prefix="pip-build-"))
+            # If we were not given an explicit directory, and we were not given
+            # an explicit delete option, then we'll default to deleting.
+            if delete is None:
+                delete = True
+
+        self.name = name
+        self.delete = delete
+
+    def __repr__(self):
+        return "<{} {!r}>".format(self.__class__.__name__, self.name)
+
+    def __enter__(self):
+        return self.name
+
+    def __exit__(self, exc, value, tb):
+        self.cleanup()
+
+    def cleanup(self):
+        if self.delete:
+            rmtree(self.name)
diff --git a/venv/lib/python3.5/site-packages/pip/utils/deprecation.py b/venv/lib/python3.5/site-packages/pip/utils/deprecation.py
new file mode 100644
index 0000000..c3f799e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/deprecation.py
@@ -0,0 +1,76 @@
+"""
+A module that implements tooling to enable easy warnings about deprecations.
+"""
+from __future__ import absolute_import
+
+import logging
+import warnings
+
+
+class PipDeprecationWarning(Warning):
+    pass
+
+
+class Pending(object):
+    pass
+
+
+class RemovedInPip10Warning(PipDeprecationWarning):
+    pass
+
+
+class RemovedInPip11Warning(PipDeprecationWarning, Pending):
+    pass
+
+
+class Python26DeprecationWarning(PipDeprecationWarning):
+    pass
+
+
+# Warnings <-> Logging Integration
+
+
+_warnings_showwarning = None
+
+
+def _showwarning(message, category, filename, lineno, file=None, line=None):
+    if file is not None:
+        if _warnings_showwarning is not None:
+            _warnings_showwarning(
+                message, category, filename, lineno, file, line,
+            )
+    else:
+        if issubclass(category, PipDeprecationWarning):
+            # We use a specially named logger which will handle all of the
+            # deprecation messages for pip.
+            logger = logging.getLogger("pip.deprecations")
+
+            # This is purposely using the % formatter here instead of letting
+            # the logging module handle the interpolation. This is because we
+            # want it to appear as if someone typed this entire message out.
+            log_message = "DEPRECATION: %s" % message
+
+            # PipDeprecationWarnings that are Pending still have at least 2
+            # versions to go until they are removed so they can just be
+            # warnings.  Otherwise, they will be removed in the very next
+            # version of pip. We want these to be more obvious so we use the
+            # ERROR logging level.
+            if issubclass(category, Pending):
+                logger.warning(log_message)
+            else:
+                logger.error(log_message)
+        else:
+            _warnings_showwarning(
+                message, category, filename, lineno, file, line,
+            )
+
+
+def install_warning_logger():
+    # Enable our Deprecation Warnings
+    warnings.simplefilter("default", PipDeprecationWarning, append=True)
+
+    global _warnings_showwarning
+
+    if _warnings_showwarning is None:
+        _warnings_showwarning = warnings.showwarning
+        warnings.showwarning = _showwarning
diff --git a/venv/lib/python3.5/site-packages/pip/utils/encoding.py b/venv/lib/python3.5/site-packages/pip/utils/encoding.py
new file mode 100644
index 0000000..2483168
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/encoding.py
@@ -0,0 +1,31 @@
+import codecs
+import locale
+import re
+
+
+BOMS = [
+    (codecs.BOM_UTF8, 'utf8'),
+    (codecs.BOM_UTF16, 'utf16'),
+    (codecs.BOM_UTF16_BE, 'utf16-be'),
+    (codecs.BOM_UTF16_LE, 'utf16-le'),
+    (codecs.BOM_UTF32, 'utf32'),
+    (codecs.BOM_UTF32_BE, 'utf32-be'),
+    (codecs.BOM_UTF32_LE, 'utf32-le'),
+]
+
+ENCODING_RE = re.compile(b'coding[:=]\s*([-\w.]+)')
+
+
+def auto_decode(data):
+    """Check a bytes string for a BOM to correctly detect the encoding
+
+    Fallback to locale.getpreferredencoding(False) like open() on Python3"""
+    for bom, encoding in BOMS:
+        if data.startswith(bom):
+            return data[len(bom):].decode(encoding)
+    # Lets check the first two lines as in PEP263
+    for line in data.split(b'\n')[:2]:
+        if line[0:1] == b'#' and ENCODING_RE.search(line):
+            encoding = ENCODING_RE.search(line).groups()[0].decode('ascii')
+            return data.decode(encoding)
+    return data.decode(locale.getpreferredencoding(False))
diff --git a/venv/lib/python3.5/site-packages/pip/utils/filesystem.py b/venv/lib/python3.5/site-packages/pip/utils/filesystem.py
new file mode 100644
index 0000000..25ad516
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/filesystem.py
@@ -0,0 +1,28 @@
+import os
+import os.path
+
+from pip.compat import get_path_uid
+
+
+def check_path_owner(path):
+    # If we don't have a way to check the effective uid of this process, then
+    # we'll just assume that we own the directory.
+    if not hasattr(os, "geteuid"):
+        return True
+
+    previous = None
+    while path != previous:
+        if os.path.lexists(path):
+            # Check if path is writable by current user.
+            if os.geteuid() == 0:
+                # Special handling for root user in order to handle properly
+                # cases where users use sudo without -H flag.
+                try:
+                    path_uid = get_path_uid(path)
+                except OSError:
+                    return False
+                return path_uid == 0
+            else:
+                return os.access(path, os.W_OK)
+        else:
+            previous, path = path, os.path.dirname(path)
diff --git a/venv/lib/python3.5/site-packages/pip/utils/glibc.py b/venv/lib/python3.5/site-packages/pip/utils/glibc.py
new file mode 100644
index 0000000..7847885
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/glibc.py
@@ -0,0 +1,81 @@
+from __future__ import absolute_import
+
+import re
+import ctypes
+import platform
+import warnings
+
+
+def glibc_version_string():
+    "Returns glibc version string, or None if not using glibc."
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    process_namespace = ctypes.CDLL(None)
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+# Separated out from have_compatible_glibc for easier unit testing
+def check_glibc_version(version_str, required_major, minimum_minor):
+    # Parse string and check against requested version.
+    #
+    # We use a regexp instead of str.split because we want to discard any
+    # random junk that might come after the minor version -- this might happen
+    # in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    # uses version strings like "2.20-2014.11"). See gh-3588.
+    m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
+    if not m:
+        warnings.warn("Expected glibc version with 2 components major.minor,"
+                      " got: %s" % version_str, RuntimeWarning)
+        return False
+    return (int(m.group("major")) == required_major and
+            int(m.group("minor")) >= minimum_minor)
+
+
+def have_compatible_glibc(required_major, minimum_minor):
+    version_str = glibc_version_string()
+    if version_str is None:
+        return False
+    return check_glibc_version(version_str, required_major, minimum_minor)
+
+
+# platform.libc_ver regularly returns completely nonsensical glibc
+# versions. E.g. on my computer, platform says:
+#
+#   ~$ python2.7 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.7')
+#   ~$ python3.5 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.9')
+#
+# But the truth is:
+#
+#   ~$ ldd --version
+#   ldd (Debian GLIBC 2.22-11) 2.22
+#
+# This is unfortunate, because it means that the linehaul data on libc
+# versions that was generated by pip 8.1.2 and earlier is useless and
+# misleading. Solution: instead of using platform, use our code that actually
+# works.
+def libc_ver():
+    glibc_version = glibc_version_string()
+    if glibc_version is None:
+        # For non-glibc platforms, fall back on platform.libc_ver
+        return platform.libc_ver()
+    else:
+        return ("glibc", glibc_version)
diff --git a/venv/lib/python3.5/site-packages/pip/utils/hashes.py b/venv/lib/python3.5/site-packages/pip/utils/hashes.py
new file mode 100644
index 0000000..9602970
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/hashes.py
@@ -0,0 +1,92 @@
+from __future__ import absolute_import
+
+import hashlib
+
+from pip.exceptions import HashMismatch, HashMissing, InstallationError
+from pip.utils import read_chunks
+from pip._vendor.six import iteritems, iterkeys, itervalues
+
+
+# The recommended hash algo of the moment. Change this whenever the state of
+# the art changes; it won't hurt backward compatibility.
+FAVORITE_HASH = 'sha256'
+
+
+# Names of hashlib algorithms allowed by the --hash option and ``pip hash``
+# Currently, those are the ones at least as collision-resistant as sha256.
+STRONG_HASHES = ['sha256', 'sha384', 'sha512']
+
+
+class Hashes(object):
+    """A wrapper that builds multiple hashes at once and checks them against
+    known-good values
+
+    """
+    def __init__(self, hashes=None):
+        """
+        :param hashes: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        """
+        self._allowed = {} if hashes is None else hashes
+
+    def check_against_chunks(self, chunks):
+        """Check good hashes against ones built from iterable of chunks of
+        data.
+
+        Raise HashMismatch if none match.
+
+        """
+        gots = {}
+        for hash_name in iterkeys(self._allowed):
+            try:
+                gots[hash_name] = hashlib.new(hash_name)
+            except (ValueError, TypeError):
+                raise InstallationError('Unknown hash name: %s' % hash_name)
+
+        for chunk in chunks:
+            for hash in itervalues(gots):
+                hash.update(chunk)
+
+        for hash_name, got in iteritems(gots):
+            if got.hexdigest() in self._allowed[hash_name]:
+                return
+        self._raise(gots)
+
+    def _raise(self, gots):
+        raise HashMismatch(self._allowed, gots)
+
+    def check_against_file(self, file):
+        """Check good hashes against a file-like object
+
+        Raise HashMismatch if none match.
+
+        """
+        return self.check_against_chunks(read_chunks(file))
+
+    def check_against_path(self, path):
+        with open(path, 'rb') as file:
+            return self.check_against_file(file)
+
+    def __nonzero__(self):
+        """Return whether I know any known-good hashes."""
+        return bool(self._allowed)
+
+    def __bool__(self):
+        return self.__nonzero__()
+
+
+class MissingHashes(Hashes):
+    """A workalike for Hashes used when we're missing a hash for a requirement
+
+    It computes the actual hash of the requirement and raises a HashMissing
+    exception showing it to the user.
+
+    """
+    def __init__(self):
+        """Don't offer the ``hashes`` kwarg."""
+        # Pass our favorite hash in to generate a "gotten hash". With the
+        # empty list, it will never match, so an error will always raise.
+        super(MissingHashes, self).__init__(hashes={FAVORITE_HASH: []})
+
+    def _raise(self, gots):
+        raise HashMissing(gots[FAVORITE_HASH].hexdigest())
diff --git a/venv/lib/python3.5/site-packages/pip/utils/logging.py b/venv/lib/python3.5/site-packages/pip/utils/logging.py
new file mode 100644
index 0000000..1c1053a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/logging.py
@@ -0,0 +1,130 @@
+from __future__ import absolute_import
+
+import contextlib
+import logging
+import logging.handlers
+import os
+
+try:
+    import threading
+except ImportError:
+    import dummy_threading as threading
+
+from pip.compat import WINDOWS
+from pip.utils import ensure_dir
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+
+_log_state = threading.local()
+_log_state.indentation = 0
+
+
+@contextlib.contextmanager
+def indent_log(num=2):
+    """
+    A context manager which will cause the log output to be indented for any
+    log messages emitted inside it.
+    """
+    _log_state.indentation += num
+    try:
+        yield
+    finally:
+        _log_state.indentation -= num
+
+
+def get_indentation():
+    return getattr(_log_state, 'indentation', 0)
+
+
+class IndentingFormatter(logging.Formatter):
+
+    def format(self, record):
+        """
+        Calls the standard formatter, but will indent all of the log messages
+        by our current indentation level.
+        """
+        formatted = logging.Formatter.format(self, record)
+        formatted = "".join([
+            (" " * get_indentation()) + line
+            for line in formatted.splitlines(True)
+        ])
+        return formatted
+
+
+def _color_wrap(*colors):
+    def wrapped(inp):
+        return "".join(list(colors) + [inp, colorama.Style.RESET_ALL])
+    return wrapped
+
+
+class ColorizedStreamHandler(logging.StreamHandler):
+
+    # Don't build up a list of colors if we don't have colorama
+    if colorama:
+        COLORS = [
+            # This needs to be in order from highest logging level to lowest.
+            (logging.ERROR, _color_wrap(colorama.Fore.RED)),
+            (logging.WARNING, _color_wrap(colorama.Fore.YELLOW)),
+        ]
+    else:
+        COLORS = []
+
+    def __init__(self, stream=None):
+        logging.StreamHandler.__init__(self, stream)
+
+        if WINDOWS and colorama:
+            self.stream = colorama.AnsiToWin32(self.stream)
+
+    def should_color(self):
+        # Don't colorize things if we do not have colorama
+        if not colorama:
+            return False
+
+        real_stream = (
+            self.stream if not isinstance(self.stream, colorama.AnsiToWin32)
+            else self.stream.wrapped
+        )
+
+        # If the stream is a tty we should color it
+        if hasattr(real_stream, "isatty") and real_stream.isatty():
+            return True
+
+        # If we have an ASNI term we should color it
+        if os.environ.get("TERM") == "ANSI":
+            return True
+
+        # If anything else we should not color it
+        return False
+
+    def format(self, record):
+        msg = logging.StreamHandler.format(self, record)
+
+        if self.should_color():
+            for level, color in self.COLORS:
+                if record.levelno >= level:
+                    msg = color(msg)
+                    break
+
+        return msg
+
+
+class BetterRotatingFileHandler(logging.handlers.RotatingFileHandler):
+
+    def _open(self):
+        ensure_dir(os.path.dirname(self.baseFilename))
+        return logging.handlers.RotatingFileHandler._open(self)
+
+
+class MaxLevelFilter(logging.Filter):
+
+    def __init__(self, level):
+        self.level = level
+
+    def filter(self, record):
+        return record.levelno < self.level
diff --git a/venv/lib/python3.5/site-packages/pip/utils/outdated.py b/venv/lib/python3.5/site-packages/pip/utils/outdated.py
new file mode 100644
index 0000000..2164cc3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/outdated.py
@@ -0,0 +1,162 @@
+from __future__ import absolute_import
+
+import datetime
+import json
+import logging
+import os.path
+import sys
+
+from pip._vendor import lockfile
+from pip._vendor.packaging import version as packaging_version
+
+from pip.compat import total_seconds, WINDOWS
+from pip.models import PyPI
+from pip.locations import USER_CACHE_DIR, running_under_virtualenv
+from pip.utils import ensure_dir, get_installed_version
+from pip.utils.filesystem import check_path_owner
+
+
+SELFCHECK_DATE_FMT = "%Y-%m-%dT%H:%M:%SZ"
+
+
+logger = logging.getLogger(__name__)
+
+
+class VirtualenvSelfCheckState(object):
+    def __init__(self):
+        self.statefile_path = os.path.join(sys.prefix, "pip-selfcheck.json")
+
+        # Load the existing state
+        try:
+            with open(self.statefile_path) as statefile:
+                self.state = json.load(statefile)
+        except (IOError, ValueError):
+            self.state = {}
+
+    def save(self, pypi_version, current_time):
+        # Attempt to write out our version check file
+        with open(self.statefile_path, "w") as statefile:
+            json.dump(
+                {
+                    "last_check": current_time.strftime(SELFCHECK_DATE_FMT),
+                    "pypi_version": pypi_version,
+                },
+                statefile,
+                sort_keys=True,
+                separators=(",", ":")
+            )
+
+
+class GlobalSelfCheckState(object):
+    def __init__(self):
+        self.statefile_path = os.path.join(USER_CACHE_DIR, "selfcheck.json")
+
+        # Load the existing state
+        try:
+            with open(self.statefile_path) as statefile:
+                self.state = json.load(statefile)[sys.prefix]
+        except (IOError, ValueError, KeyError):
+            self.state = {}
+
+    def save(self, pypi_version, current_time):
+        # Check to make sure that we own the directory
+        if not check_path_owner(os.path.dirname(self.statefile_path)):
+            return
+
+        # Now that we've ensured the directory is owned by this user, we'll go
+        # ahead and make sure that all our directories are created.
+        ensure_dir(os.path.dirname(self.statefile_path))
+
+        # Attempt to write out our version check file
+        with lockfile.LockFile(self.statefile_path):
+            if os.path.exists(self.statefile_path):
+                with open(self.statefile_path) as statefile:
+                    state = json.load(statefile)
+            else:
+                state = {}
+
+            state[sys.prefix] = {
+                "last_check": current_time.strftime(SELFCHECK_DATE_FMT),
+                "pypi_version": pypi_version,
+            }
+
+            with open(self.statefile_path, "w") as statefile:
+                json.dump(state, statefile, sort_keys=True,
+                          separators=(",", ":"))
+
+
+def load_selfcheck_statefile():
+    if running_under_virtualenv():
+        return VirtualenvSelfCheckState()
+    else:
+        return GlobalSelfCheckState()
+
+
+def pip_version_check(session):
+    """Check for an update for pip.
+
+    Limit the frequency of checks to once per week. State is stored either in
+    the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix
+    of the pip script path.
+    """
+    installed_version = get_installed_version("pip")
+    if installed_version is None:
+        return
+
+    pip_version = packaging_version.parse(installed_version)
+    pypi_version = None
+
+    try:
+        state = load_selfcheck_statefile()
+
+        current_time = datetime.datetime.utcnow()
+        # Determine if we need to refresh the state
+        if "last_check" in state.state and "pypi_version" in state.state:
+            last_check = datetime.datetime.strptime(
+                state.state["last_check"],
+                SELFCHECK_DATE_FMT
+            )
+            if total_seconds(current_time - last_check) < 7 * 24 * 60 * 60:
+                pypi_version = state.state["pypi_version"]
+
+        # Refresh the version if we need to or just see if we need to warn
+        if pypi_version is None:
+            resp = session.get(
+                PyPI.pip_json_url,
+                headers={"Accept": "application/json"},
+            )
+            resp.raise_for_status()
+            pypi_version = [
+                v for v in sorted(
+                    list(resp.json()["releases"]),
+                    key=packaging_version.parse,
+                )
+                if not packaging_version.parse(v).is_prerelease
+            ][-1]
+
+            # save that we've performed a check
+            state.save(pypi_version, current_time)
+
+        remote_version = packaging_version.parse(pypi_version)
+
+        # Determine if our pypi_version is older
+        if (pip_version < remote_version and
+                pip_version.base_version != remote_version.base_version):
+            # Advise "python -m pip" on Windows to avoid issues
+            # with overwriting pip.exe.
+            if WINDOWS:
+                pip_cmd = "python -m pip"
+            else:
+                pip_cmd = "pip"
+            logger.warning(
+                "You are using pip version %s, however version %s is "
+                "available.\nYou should consider upgrading via the "
+                "'%s install --upgrade pip' command.",
+                pip_version, pypi_version, pip_cmd
+            )
+
+    except Exception:
+        logger.debug(
+            "There was an error checking the latest version of pip",
+            exc_info=True,
+        )
diff --git a/venv/lib/python3.5/site-packages/pip/utils/packaging.py b/venv/lib/python3.5/site-packages/pip/utils/packaging.py
new file mode 100644
index 0000000..e93b20d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/packaging.py
@@ -0,0 +1,63 @@
+from __future__ import absolute_import
+
+from email.parser import FeedParser
+
+import logging
+import sys
+
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging import version
+from pip._vendor import pkg_resources
+
+from pip import exceptions
+
+logger = logging.getLogger(__name__)
+
+
+def check_requires_python(requires_python):
+    """
+    Check if the python version in use match the `requires_python` specifier.
+
+    Returns `True` if the version of python in use matches the requirement.
+    Returns `False` if the version of python in use does not matches the
+    requirement.
+
+    Raises an InvalidSpecifier if `requires_python` have an invalid format.
+    """
+    if requires_python is None:
+        # The package provides no information
+        return True
+    requires_python_specifier = specifiers.SpecifierSet(requires_python)
+
+    # We only use major.minor.micro
+    python_version = version.parse('.'.join(map(str, sys.version_info[:3])))
+    return python_version in requires_python_specifier
+
+
+def get_metadata(dist):
+    if (isinstance(dist, pkg_resources.DistInfoDistribution) and
+            dist.has_metadata('METADATA')):
+        return dist.get_metadata('METADATA')
+    elif dist.has_metadata('PKG-INFO'):
+        return dist.get_metadata('PKG-INFO')
+
+
+def check_dist_requires_python(dist):
+    metadata = get_metadata(dist)
+    feed_parser = FeedParser()
+    feed_parser.feed(metadata)
+    pkg_info_dict = feed_parser.close()
+    requires_python = pkg_info_dict.get('Requires-Python')
+    try:
+        if not check_requires_python(requires_python):
+            raise exceptions.UnsupportedPythonVersion(
+                "%s requires Python '%s' but the running Python is %s" % (
+                    dist.project_name,
+                    requires_python,
+                    '.'.join(map(str, sys.version_info[:3])),)
+            )
+    except specifiers.InvalidSpecifier as e:
+        logger.warning(
+            "Package %s has an invalid Requires-Python entry %s - %s" % (
+                dist.project_name, requires_python, e))
+        return
diff --git a/venv/lib/python3.5/site-packages/pip/utils/setuptools_build.py b/venv/lib/python3.5/site-packages/pip/utils/setuptools_build.py
new file mode 100644
index 0000000..03973e9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/setuptools_build.py
@@ -0,0 +1,8 @@
+# Shim to wrap setup.py invocation with setuptools
+SETUPTOOLS_SHIM = (
+    "import setuptools, tokenize;__file__=%r;"
+    "f=getattr(tokenize, 'open', open)(__file__);"
+    "code=f.read().replace('\\r\\n', '\\n');"
+    "f.close();"
+    "exec(compile(code, __file__, 'exec'))"
+)
diff --git a/venv/lib/python3.5/site-packages/pip/utils/ui.py b/venv/lib/python3.5/site-packages/pip/utils/ui.py
new file mode 100644
index 0000000..bba73e3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/utils/ui.py
@@ -0,0 +1,344 @@
+from __future__ import absolute_import
+from __future__ import division
+
+import itertools
+import sys
+from signal import signal, SIGINT, default_int_handler
+import time
+import contextlib
+import logging
+
+from pip.compat import WINDOWS
+from pip.utils import format_size
+from pip.utils.logging import get_indentation
+from pip._vendor import six
+from pip._vendor.progress.bar import Bar, IncrementalBar
+from pip._vendor.progress.helpers import (WritelnMixin,
+                                          HIDE_CURSOR, SHOW_CURSOR)
+from pip._vendor.progress.spinner import Spinner
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+logger = logging.getLogger(__name__)
+
+
+def _select_progress_class(preferred, fallback):
+    encoding = getattr(preferred.file, "encoding", None)
+
+    # If we don't know what encoding this file is in, then we'll just assume
+    # that it doesn't support unicode and use the ASCII bar.
+    if not encoding:
+        return fallback
+
+    # Collect all of the possible characters we want to use with the preferred
+    # bar.
+    characters = [
+        getattr(preferred, "empty_fill", six.text_type()),
+        getattr(preferred, "fill", six.text_type()),
+    ]
+    characters += list(getattr(preferred, "phases", []))
+
+    # Try to decode the characters we're using for the bar using the encoding
+    # of the given file, if this works then we'll assume that we can use the
+    # fancier bar and if not we'll fall back to the plaintext bar.
+    try:
+        six.text_type().join(characters).encode(encoding)
+    except UnicodeEncodeError:
+        return fallback
+    else:
+        return preferred
+
+
+_BaseBar = _select_progress_class(IncrementalBar, Bar)
+
+
+class InterruptibleMixin(object):
+    """
+    Helper to ensure that self.finish() gets called on keyboard interrupt.
+
+    This allows downloads to be interrupted without leaving temporary state
+    (like hidden cursors) behind.
+
+    This class is similar to the progress library's existing SigIntMixin
+    helper, but as of version 1.2, that helper has the following problems:
+
+    1. It calls sys.exit().
+    2. It discards the existing SIGINT handler completely.
+    3. It leaves its own handler in place even after an uninterrupted finish,
+       which will have unexpected delayed effects if the user triggers an
+       unrelated keyboard interrupt some time after a progress-displaying
+       download has already completed, for example.
+    """
+
+    def __init__(self, *args, **kwargs):
+        """
+        Save the original SIGINT handler for later.
+        """
+        super(InterruptibleMixin, self).__init__(*args, **kwargs)
+
+        self.original_handler = signal(SIGINT, self.handle_sigint)
+
+        # If signal() returns None, the previous handler was not installed from
+        # Python, and we cannot restore it. This probably should not happen,
+        # but if it does, we must restore something sensible instead, at least.
+        # The least bad option should be Python's default SIGINT handler, which
+        # just raises KeyboardInterrupt.
+        if self.original_handler is None:
+            self.original_handler = default_int_handler
+
+    def finish(self):
+        """
+        Restore the original SIGINT handler after finishing.
+
+        This should happen regardless of whether the progress display finishes
+        normally, or gets interrupted.
+        """
+        super(InterruptibleMixin, self).finish()
+        signal(SIGINT, self.original_handler)
+
+    def handle_sigint(self, signum, frame):
+        """
+        Call self.finish() before delegating to the original SIGINT handler.
+
+        This handler should only be in place while the progress display is
+        active.
+        """
+        self.finish()
+        self.original_handler(signum, frame)
+
+
+class DownloadProgressMixin(object):
+
+    def __init__(self, *args, **kwargs):
+        super(DownloadProgressMixin, self).__init__(*args, **kwargs)
+        self.message = (" " * (get_indentation() + 2)) + self.message
+
+    @property
+    def downloaded(self):
+        return format_size(self.index)
+
+    @property
+    def download_speed(self):
+        # Avoid zero division errors...
+        if self.avg == 0.0:
+            return "..."
+        return format_size(1 / self.avg) + "/s"
+
+    @property
+    def pretty_eta(self):
+        if self.eta:
+            return "eta %s" % self.eta_td
+        return ""
+
+    def iter(self, it, n=1):
+        for x in it:
+            yield x
+            self.next(n)
+        self.finish()
+
+
+class WindowsMixin(object):
+
+    def __init__(self, *args, **kwargs):
+        # The Windows terminal does not support the hide/show cursor ANSI codes
+        # even with colorama. So we'll ensure that hide_cursor is False on
+        # Windows.
+        # This call neds to go before the super() call, so that hide_cursor
+        # is set in time. The base progress bar class writes the "hide cursor"
+        # code to the terminal in its init, so if we don't set this soon
+        # enough, we get a "hide" with no corresponding "show"...
+        if WINDOWS and self.hide_cursor:
+            self.hide_cursor = False
+
+        super(WindowsMixin, self).__init__(*args, **kwargs)
+
+        # Check if we are running on Windows and we have the colorama module,
+        # if we do then wrap our file with it.
+        if WINDOWS and colorama:
+            self.file = colorama.AnsiToWin32(self.file)
+            # The progress code expects to be able to call self.file.isatty()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.isatty = lambda: self.file.wrapped.isatty()
+            # The progress code expects to be able to call self.file.flush()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.flush = lambda: self.file.wrapped.flush()
+
+
+class DownloadProgressBar(WindowsMixin, InterruptibleMixin,
+                          DownloadProgressMixin, _BaseBar):
+
+    file = sys.stdout
+    message = "%(percent)d%%"
+    suffix = "%(downloaded)s %(download_speed)s %(pretty_eta)s"
+
+
+class DownloadProgressSpinner(WindowsMixin, InterruptibleMixin,
+                              DownloadProgressMixin, WritelnMixin, Spinner):
+
+    file = sys.stdout
+    suffix = "%(downloaded)s %(download_speed)s"
+
+    def next_phase(self):
+        if not hasattr(self, "_phaser"):
+            self._phaser = itertools.cycle(self.phases)
+        return next(self._phaser)
+
+    def update(self):
+        message = self.message % self
+        phase = self.next_phase()
+        suffix = self.suffix % self
+        line = ''.join([
+            message,
+            " " if message else "",
+            phase,
+            " " if suffix else "",
+            suffix,
+        ])
+
+        self.writeln(line)
+
+
+################################################################
+# Generic "something is happening" spinners
+#
+# We don't even try using progress.spinner.Spinner here because it's actually
+# simpler to reimplement from scratch than to coerce their code into doing
+# what we need.
+################################################################
+
+@contextlib.contextmanager
+def hidden_cursor(file):
+    # The Windows terminal does not support the hide/show cursor ANSI codes,
+    # even via colorama. So don't even try.
+    if WINDOWS:
+        yield
+    # We don't want to clutter the output with control characters if we're
+    # writing to a file, or if the user is running with --quiet.
+    # See https://github.com/pypa/pip/issues/3418
+    elif not file.isatty() or logger.getEffectiveLevel() > logging.INFO:
+        yield
+    else:
+        file.write(HIDE_CURSOR)
+        try:
+            yield
+        finally:
+            file.write(SHOW_CURSOR)
+
+
+class RateLimiter(object):
+    def __init__(self, min_update_interval_seconds):
+        self._min_update_interval_seconds = min_update_interval_seconds
+        self._last_update = 0
+
+    def ready(self):
+        now = time.time()
+        delta = now - self._last_update
+        return delta >= self._min_update_interval_seconds
+
+    def reset(self):
+        self._last_update = time.time()
+
+
+class InteractiveSpinner(object):
+    def __init__(self, message, file=None, spin_chars="-\\|/",
+                 # Empirically, 8 updates/second looks nice
+                 min_update_interval_seconds=0.125):
+        self._message = message
+        if file is None:
+            file = sys.stdout
+        self._file = file
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._finished = False
+
+        self._spin_cycle = itertools.cycle(spin_chars)
+
+        self._file.write(" " * get_indentation() + self._message + " ... ")
+        self._width = 0
+
+    def _write(self, status):
+        assert not self._finished
+        # Erase what we wrote before by backspacing to the beginning, writing
+        # spaces to overwrite the old text, and then backspacing again
+        backup = "\b" * self._width
+        self._file.write(backup + " " * self._width + backup)
+        # Now we have a blank slate to add our status
+        self._file.write(status)
+        self._width = len(status)
+        self._file.flush()
+        self._rate_limiter.reset()
+
+    def spin(self):
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._write(next(self._spin_cycle))
+
+    def finish(self, final_status):
+        if self._finished:
+            return
+        self._write(final_status)
+        self._file.write("\n")
+        self._file.flush()
+        self._finished = True
+
+
+# Used for dumb terminals, non-interactive installs (no tty), etc.
+# We still print updates occasionally (once every 60 seconds by default) to
+# act as a keep-alive for systems like Travis-CI that take lack-of-output as
+# an indication that a task has frozen.
+class NonInteractiveSpinner(object):
+    def __init__(self, message, min_update_interval_seconds=60):
+        self._message = message
+        self._finished = False
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._update("started")
+
+    def _update(self, status):
+        assert not self._finished
+        self._rate_limiter.reset()
+        logger.info("%s: %s", self._message, status)
+
+    def spin(self):
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._update("still running...")
+
+    def finish(self, final_status):
+        if self._finished:
+            return
+        self._update("finished with status '%s'" % (final_status,))
+        self._finished = True
+
+
+@contextlib.contextmanager
+def open_spinner(message):
+    # Interactive spinner goes directly to sys.stdout rather than being routed
+    # through the logging system, but it acts like it has level INFO,
+    # i.e. it's only displayed if we're at level INFO or better.
+    # Non-interactive spinner goes through the logging system, so it is always
+    # in sync with logging configuration.
+    if sys.stdout.isatty() and logger.getEffectiveLevel() <= logging.INFO:
+        spinner = InteractiveSpinner(message)
+    else:
+        spinner = NonInteractiveSpinner(message)
+    try:
+        with hidden_cursor(sys.stdout):
+            yield spinner
+    except KeyboardInterrupt:
+        spinner.finish("canceled")
+        raise
+    except Exception:
+        spinner.finish("error")
+        raise
+    else:
+        spinner.finish("done")
diff --git a/venv/lib/python3.5/site-packages/pip/vcs/__init__.py b/venv/lib/python3.5/site-packages/pip/vcs/__init__.py
new file mode 100644
index 0000000..8d3dbb2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/vcs/__init__.py
@@ -0,0 +1,366 @@
+"""Handles all VCS (version control) support"""
+from __future__ import absolute_import
+
+import errno
+import logging
+import os
+import shutil
+import sys
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+from pip.exceptions import BadCommand
+from pip.utils import (display_path, backup_dir, call_subprocess,
+                       rmtree, ask_path_exists)
+
+
+__all__ = ['vcs', 'get_src_requirement']
+
+
+logger = logging.getLogger(__name__)
+
+
+class VcsSupport(object):
+    _registry = {}
+    schemes = ['ssh', 'git', 'hg', 'bzr', 'sftp', 'svn']
+
+    def __init__(self):
+        # Register more schemes with urlparse for various version control
+        # systems
+        urllib_parse.uses_netloc.extend(self.schemes)
+        # Python >= 2.7.4, 3.3 doesn't have uses_fragment
+        if getattr(urllib_parse, 'uses_fragment', None):
+            urllib_parse.uses_fragment.extend(self.schemes)
+        super(VcsSupport, self).__init__()
+
+    def __iter__(self):
+        return self._registry.__iter__()
+
+    @property
+    def backends(self):
+        return list(self._registry.values())
+
+    @property
+    def dirnames(self):
+        return [backend.dirname for backend in self.backends]
+
+    @property
+    def all_schemes(self):
+        schemes = []
+        for backend in self.backends:
+            schemes.extend(backend.schemes)
+        return schemes
+
+    def register(self, cls):
+        if not hasattr(cls, 'name'):
+            logger.warning('Cannot register VCS %s', cls.__name__)
+            return
+        if cls.name not in self._registry:
+            self._registry[cls.name] = cls
+            logger.debug('Registered VCS backend: %s', cls.name)
+
+    def unregister(self, cls=None, name=None):
+        if name in self._registry:
+            del self._registry[name]
+        elif cls in self._registry.values():
+            del self._registry[cls.name]
+        else:
+            logger.warning('Cannot unregister because no class or name given')
+
+    def get_backend_name(self, location):
+        """
+        Return the name of the version control backend if found at given
+        location, e.g. vcs.get_backend_name('/path/to/vcs/checkout')
+        """
+        for vc_type in self._registry.values():
+            if vc_type.controls_location(location):
+                logger.debug('Determine that %s uses VCS: %s',
+                             location, vc_type.name)
+                return vc_type.name
+        return None
+
+    def get_backend(self, name):
+        name = name.lower()
+        if name in self._registry:
+            return self._registry[name]
+
+    def get_backend_from_location(self, location):
+        vc_type = self.get_backend_name(location)
+        if vc_type:
+            return self.get_backend(vc_type)
+        return None
+
+
+vcs = VcsSupport()
+
+
+class VersionControl(object):
+    name = ''
+    dirname = ''
+    # List of supported schemes for this Version Control
+    schemes = ()
+
+    def __init__(self, url=None, *args, **kwargs):
+        self.url = url
+        super(VersionControl, self).__init__(*args, **kwargs)
+
+    def _is_local_repository(self, repo):
+        """
+           posix absolute paths start with os.path.sep,
+           win32 ones start with drive (like c:\\folder)
+        """
+        drive, tail = os.path.splitdrive(repo)
+        return repo.startswith(os.path.sep) or drive
+
+    # See issue #1083 for why this method was introduced:
+    # https://github.com/pypa/pip/issues/1083
+    def translate_egg_surname(self, surname):
+        # For example, Django has branches of the form "stable/1.7.x".
+        return surname.replace('/', '_')
+
+    def export(self, location):
+        """
+        Export the repository at the url to the destination location
+        i.e. only download the files, without vcs informations
+        """
+        raise NotImplementedError
+
+    def get_url_rev(self):
+        """
+        Returns the correct repository URL and revision by parsing the given
+        repository URL
+        """
+        error_message = (
+            "Sorry, '%s' is a malformed VCS url. "
+            "The format is <vcs>+<protocol>://<url>, "
+            "e.g. svn+http://myrepo/svn/MyApp#egg=MyApp"
+        )
+        assert '+' in self.url, error_message % self.url
+        url = self.url.split('+', 1)[1]
+        scheme, netloc, path, query, frag = urllib_parse.urlsplit(url)
+        rev = None
+        if '@' in path:
+            path, rev = path.rsplit('@', 1)
+        url = urllib_parse.urlunsplit((scheme, netloc, path, query, ''))
+        return url, rev
+
+    def get_info(self, location):
+        """
+        Returns (url, revision), where both are strings
+        """
+        assert not location.rstrip('/').endswith(self.dirname), \
+            'Bad directory: %s' % location
+        return self.get_url(location), self.get_revision(location)
+
+    def normalize_url(self, url):
+        """
+        Normalize a URL for comparison by unquoting it and removing any
+        trailing slash.
+        """
+        return urllib_parse.unquote(url).rstrip('/')
+
+    def compare_urls(self, url1, url2):
+        """
+        Compare two repo URLs for identity, ignoring incidental differences.
+        """
+        return (self.normalize_url(url1) == self.normalize_url(url2))
+
+    def obtain(self, dest):
+        """
+        Called when installing or updating an editable package, takes the
+        source path of the checkout.
+        """
+        raise NotImplementedError
+
+    def switch(self, dest, url, rev_options):
+        """
+        Switch the repo at ``dest`` to point to ``URL``.
+        """
+        raise NotImplementedError
+
+    def update(self, dest, rev_options):
+        """
+        Update an already-existing repo to the given ``rev_options``.
+        """
+        raise NotImplementedError
+
+    def check_version(self, dest, rev_options):
+        """
+        Return True if the version is identical to what exists and
+        doesn't need to be updated.
+        """
+        raise NotImplementedError
+
+    def check_destination(self, dest, url, rev_options, rev_display):
+        """
+        Prepare a location to receive a checkout/clone.
+
+        Return True if the location is ready for (and requires) a
+        checkout/clone, False otherwise.
+        """
+        checkout = True
+        prompt = False
+        if os.path.exists(dest):
+            checkout = False
+            if os.path.exists(os.path.join(dest, self.dirname)):
+                existing_url = self.get_url(dest)
+                if self.compare_urls(existing_url, url):
+                    logger.debug(
+                        '%s in %s exists, and has correct URL (%s)',
+                        self.repo_name.title(),
+                        display_path(dest),
+                        url,
+                    )
+                    if not self.check_version(dest, rev_options):
+                        logger.info(
+                            'Updating %s %s%s',
+                            display_path(dest),
+                            self.repo_name,
+                            rev_display,
+                        )
+                        self.update(dest, rev_options)
+                    else:
+                        logger.info(
+                            'Skipping because already up-to-date.')
+                else:
+                    logger.warning(
+                        '%s %s in %s exists with URL %s',
+                        self.name,
+                        self.repo_name,
+                        display_path(dest),
+                        existing_url,
+                    )
+                    prompt = ('(s)witch, (i)gnore, (w)ipe, (b)ackup ',
+                              ('s', 'i', 'w', 'b'))
+            else:
+                logger.warning(
+                    'Directory %s already exists, and is not a %s %s.',
+                    dest,
+                    self.name,
+                    self.repo_name,
+                )
+                prompt = ('(i)gnore, (w)ipe, (b)ackup ', ('i', 'w', 'b'))
+        if prompt:
+            logger.warning(
+                'The plan is to install the %s repository %s',
+                self.name,
+                url,
+            )
+            response = ask_path_exists('What to do?  %s' % prompt[0],
+                                       prompt[1])
+
+            if response == 's':
+                logger.info(
+                    'Switching %s %s to %s%s',
+                    self.repo_name,
+                    display_path(dest),
+                    url,
+                    rev_display,
+                )
+                self.switch(dest, url, rev_options)
+            elif response == 'i':
+                # do nothing
+                pass
+            elif response == 'w':
+                logger.warning('Deleting %s', display_path(dest))
+                rmtree(dest)
+                checkout = True
+            elif response == 'b':
+                dest_dir = backup_dir(dest)
+                logger.warning(
+                    'Backing up %s to %s', display_path(dest), dest_dir,
+                )
+                shutil.move(dest, dest_dir)
+                checkout = True
+            elif response == 'a':
+                sys.exit(-1)
+        return checkout
+
+    def unpack(self, location):
+        """
+        Clean up current location and download the url repository
+        (and vcs infos) into location
+        """
+        if os.path.exists(location):
+            rmtree(location)
+        self.obtain(location)
+
+    def get_src_requirement(self, dist, location):
+        """
+        Return a string representing the requirement needed to
+        redownload the files currently present in location, something
+        like:
+          {repository_url}@{revision}#egg={project_name}-{version_identifier}
+        """
+        raise NotImplementedError
+
+    def get_url(self, location):
+        """
+        Return the url used at location
+        Used in get_info or check_destination
+        """
+        raise NotImplementedError
+
+    def get_revision(self, location):
+        """
+        Return the current revision of the files at location
+        Used in get_info
+        """
+        raise NotImplementedError
+
+    def run_command(self, cmd, show_stdout=True, cwd=None,
+                    on_returncode='raise',
+                    command_desc=None,
+                    extra_environ=None, spinner=None):
+        """
+        Run a VCS subcommand
+        This is simply a wrapper around call_subprocess that adds the VCS
+        command name, and checks that the VCS is available
+        """
+        cmd = [self.name] + cmd
+        try:
+            return call_subprocess(cmd, show_stdout, cwd,
+                                   on_returncode,
+                                   command_desc, extra_environ,
+                                   spinner)
+        except OSError as e:
+            # errno.ENOENT = no such file or directory
+            # In other words, the VCS executable isn't available
+            if e.errno == errno.ENOENT:
+                raise BadCommand('Cannot find command %r' % self.name)
+            else:
+                raise  # re-raise exception if a different error occurred
+
+    @classmethod
+    def controls_location(cls, location):
+        """
+        Check if a location is controlled by the vcs.
+        It is meant to be overridden to implement smarter detection
+        mechanisms for specific vcs.
+        """
+        logger.debug('Checking in %s for %s (%s)...',
+                     location, cls.dirname, cls.name)
+        path = os.path.join(location, cls.dirname)
+        return os.path.exists(path)
+
+
+def get_src_requirement(dist, location):
+    version_control = vcs.get_backend_from_location(location)
+    if version_control:
+        try:
+            return version_control().get_src_requirement(dist,
+                                                         location)
+        except BadCommand:
+            logger.warning(
+                'cannot determine version of editable source in %s '
+                '(%s command not found in path)',
+                location,
+                version_control.name,
+            )
+            return dist.as_requirement()
+    logger.warning(
+        'cannot determine version of editable source in %s (is not SVN '
+        'checkout, Git clone, Mercurial clone or Bazaar branch)',
+        location,
+    )
+    return dist.as_requirement()
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diff --git a/venv/lib/python3.5/site-packages/pip/vcs/bazaar.py b/venv/lib/python3.5/site-packages/pip/vcs/bazaar.py
new file mode 100644
index 0000000..0f09584
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/vcs/bazaar.py
@@ -0,0 +1,116 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+# TODO: Get this into six.moves.urllib.parse
+try:
+    from urllib import parse as urllib_parse
+except ImportError:
+    import urlparse as urllib_parse
+
+from pip.utils import rmtree, display_path
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url
+
+
+logger = logging.getLogger(__name__)
+
+
+class Bazaar(VersionControl):
+    name = 'bzr'
+    dirname = '.bzr'
+    repo_name = 'branch'
+    schemes = (
+        'bzr', 'bzr+http', 'bzr+https', 'bzr+ssh', 'bzr+sftp', 'bzr+ftp',
+        'bzr+lp',
+    )
+
+    def __init__(self, url=None, *args, **kwargs):
+        super(Bazaar, self).__init__(url, *args, **kwargs)
+        # Python >= 2.7.4, 3.3 doesn't have uses_fragment or non_hierarchical
+        # Register lp but do not expose as a scheme to support bzr+lp.
+        if getattr(urllib_parse, 'uses_fragment', None):
+            urllib_parse.uses_fragment.extend(['lp'])
+            urllib_parse.non_hierarchical.extend(['lp'])
+
+    def export(self, location):
+        """
+        Export the Bazaar repository at the url to the destination location
+        """
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        if os.path.exists(location):
+            # Remove the location to make sure Bazaar can export it correctly
+            rmtree(location)
+        try:
+            self.run_command(['export', location], cwd=temp_dir,
+                             show_stdout=False)
+        finally:
+            rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['switch', url], cwd=dest)
+
+    def update(self, dest, rev_options):
+        self.run_command(['pull', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = ['-r', rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Checking out %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['branch', '-q'] + rev_options + [url, dest])
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing bzr+ from bzr+ssh:// readd it
+        url, rev = super(Bazaar, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'bzr+' + url
+        return url, rev
+
+    def get_url(self, location):
+        urls = self.run_command(['info'], show_stdout=False, cwd=location)
+        for line in urls.splitlines():
+            line = line.strip()
+            for x in ('checkout of branch: ',
+                      'parent branch: '):
+                if line.startswith(x):
+                    repo = line.split(x)[1]
+                    if self._is_local_repository(repo):
+                        return path_to_url(repo)
+                    return repo
+        return None
+
+    def get_revision(self, location):
+        revision = self.run_command(
+            ['revno'], show_stdout=False, cwd=location)
+        return revision.splitlines()[-1]
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo:
+            return None
+        if not repo.lower().startswith('bzr:'):
+            repo = 'bzr+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        current_rev = self.get_revision(location)
+        return '%s@%s#egg=%s' % (repo, current_rev, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+
+vcs.register(Bazaar)
diff --git a/venv/lib/python3.5/site-packages/pip/vcs/git.py b/venv/lib/python3.5/site-packages/pip/vcs/git.py
new file mode 100644
index 0000000..2187dd8
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/vcs/git.py
@@ -0,0 +1,300 @@
+from __future__ import absolute_import
+
+import logging
+import tempfile
+import os.path
+
+from pip.compat import samefile
+from pip.exceptions import BadCommand
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip.utils import display_path, rmtree
+from pip.vcs import vcs, VersionControl
+
+
+urlsplit = urllib_parse.urlsplit
+urlunsplit = urllib_parse.urlunsplit
+
+
+logger = logging.getLogger(__name__)
+
+
+class Git(VersionControl):
+    name = 'git'
+    dirname = '.git'
+    repo_name = 'clone'
+    schemes = (
+        'git', 'git+http', 'git+https', 'git+ssh', 'git+git', 'git+file',
+    )
+
+    def __init__(self, url=None, *args, **kwargs):
+
+        # Works around an apparent Git bug
+        # (see http://article.gmane.org/gmane.comp.version-control.git/146500)
+        if url:
+            scheme, netloc, path, query, fragment = urlsplit(url)
+            if scheme.endswith('file'):
+                initial_slashes = path[:-len(path.lstrip('/'))]
+                newpath = (
+                    initial_slashes +
+                    urllib_request.url2pathname(path)
+                    .replace('\\', '/').lstrip('/')
+                )
+                url = urlunsplit((scheme, netloc, newpath, query, fragment))
+                after_plus = scheme.find('+') + 1
+                url = scheme[:after_plus] + urlunsplit(
+                    (scheme[after_plus:], netloc, newpath, query, fragment),
+                )
+
+        super(Git, self).__init__(url, *args, **kwargs)
+
+    def get_git_version(self):
+        VERSION_PFX = 'git version '
+        version = self.run_command(['version'], show_stdout=False)
+        if version.startswith(VERSION_PFX):
+            version = version[len(VERSION_PFX):]
+        else:
+            version = ''
+        # get first 3 positions of the git version becasue
+        # on windows it is x.y.z.windows.t, and this parses as
+        # LegacyVersion which always smaller than a Version.
+        version = '.'.join(version.split('.')[:3])
+        return parse_version(version)
+
+    def export(self, location):
+        """Export the Git repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            if not location.endswith('/'):
+                location = location + '/'
+            self.run_command(
+                ['checkout-index', '-a', '-f', '--prefix', location],
+                show_stdout=False, cwd=temp_dir)
+        finally:
+            rmtree(temp_dir)
+
+    def check_rev_options(self, rev, dest, rev_options):
+        """Check the revision options before checkout to compensate that tags
+        and branches may need origin/ as a prefix.
+        Returns the SHA1 of the branch or tag if found.
+        """
+        revisions = self.get_short_refs(dest)
+
+        origin_rev = 'origin/%s' % rev
+        if origin_rev in revisions:
+            # remote branch
+            return [revisions[origin_rev]]
+        elif rev in revisions:
+            # a local tag or branch name
+            return [revisions[rev]]
+        else:
+            logger.warning(
+                "Could not find a tag or branch '%s', assuming commit.", rev,
+            )
+            return rev_options
+
+    def check_version(self, dest, rev_options):
+        """
+        Compare the current sha to the ref. ref may be a branch or tag name,
+        but current rev will always point to a sha. This means that a branch
+        or tag will never compare as True. So this ultimately only matches
+        against exact shas.
+        """
+        return self.get_revision(dest).startswith(rev_options[0])
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['config', 'remote.origin.url', url], cwd=dest)
+        self.run_command(['checkout', '-q'] + rev_options, cwd=dest)
+
+        self.update_submodules(dest)
+
+    def update(self, dest, rev_options):
+        # First fetch changes from the default remote
+        if self.get_git_version() >= parse_version('1.9.0'):
+            # fetch tags in addition to everything else
+            self.run_command(['fetch', '-q', '--tags'], cwd=dest)
+        else:
+            self.run_command(['fetch', '-q'], cwd=dest)
+        # Then reset to wanted revision (maybe even origin/master)
+        if rev_options:
+            rev_options = self.check_rev_options(
+                rev_options[0], dest, rev_options,
+            )
+        self.run_command(['reset', '--hard', '-q'] + rev_options, cwd=dest)
+        #: update submodules
+        self.update_submodules(dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to %s)' % rev
+        else:
+            rev_options = ['origin/master']
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Cloning %s%s to %s', url, rev_display, display_path(dest),
+            )
+            self.run_command(['clone', '-q', url, dest])
+
+            if rev:
+                rev_options = self.check_rev_options(rev, dest, rev_options)
+                # Only do a checkout if rev_options differs from HEAD
+                if not self.check_version(dest, rev_options):
+                    self.run_command(
+                        ['checkout', '-q'] + rev_options,
+                        cwd=dest,
+                    )
+            #: repo may contain submodules
+            self.update_submodules(dest)
+
+    def get_url(self, location):
+        """Return URL of the first remote encountered."""
+        remotes = self.run_command(
+            ['config', '--get-regexp', 'remote\..*\.url'],
+            show_stdout=False, cwd=location)
+        remotes = remotes.splitlines()
+        found_remote = remotes[0]
+        for remote in remotes:
+            if remote.startswith('remote.origin.url '):
+                found_remote = remote
+                break
+        url = found_remote.split(' ')[1]
+        return url.strip()
+
+    def get_revision(self, location):
+        current_rev = self.run_command(
+            ['rev-parse', 'HEAD'], show_stdout=False, cwd=location)
+        return current_rev.strip()
+
+    def get_full_refs(self, location):
+        """Yields tuples of (commit, ref) for branches and tags"""
+        output = self.run_command(['show-ref'],
+                                  show_stdout=False, cwd=location)
+        for line in output.strip().splitlines():
+            commit, ref = line.split(' ', 1)
+            yield commit.strip(), ref.strip()
+
+    def is_ref_remote(self, ref):
+        return ref.startswith('refs/remotes/')
+
+    def is_ref_branch(self, ref):
+        return ref.startswith('refs/heads/')
+
+    def is_ref_tag(self, ref):
+        return ref.startswith('refs/tags/')
+
+    def is_ref_commit(self, ref):
+        """A ref is a commit sha if it is not anything else"""
+        return not any((
+            self.is_ref_remote(ref),
+            self.is_ref_branch(ref),
+            self.is_ref_tag(ref),
+        ))
+
+    # Should deprecate `get_refs` since it's ambiguous
+    def get_refs(self, location):
+        return self.get_short_refs(location)
+
+    def get_short_refs(self, location):
+        """Return map of named refs (branches or tags) to commit hashes."""
+        rv = {}
+        for commit, ref in self.get_full_refs(location):
+            ref_name = None
+            if self.is_ref_remote(ref):
+                ref_name = ref[len('refs/remotes/'):]
+            elif self.is_ref_branch(ref):
+                ref_name = ref[len('refs/heads/'):]
+            elif self.is_ref_tag(ref):
+                ref_name = ref[len('refs/tags/'):]
+            if ref_name is not None:
+                rv[ref_name] = commit
+        return rv
+
+    def _get_subdirectory(self, location):
+        """Return the relative path of setup.py to the git repo root."""
+        # find the repo root
+        git_dir = self.run_command(['rev-parse', '--git-dir'],
+                                   show_stdout=False, cwd=location).strip()
+        if not os.path.isabs(git_dir):
+            git_dir = os.path.join(location, git_dir)
+        root_dir = os.path.join(git_dir, '..')
+        # find setup.py
+        orig_location = location
+        while not os.path.exists(os.path.join(location, 'setup.py')):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without
+                # finding setup.py
+                logger.warning(
+                    "Could not find setup.py for directory %s (tried all "
+                    "parent directories)",
+                    orig_location,
+                )
+                return None
+        # relative path of setup.py to repo root
+        if samefile(root_dir, location):
+            return None
+        return os.path.relpath(location, root_dir)
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('git:'):
+            repo = 'git+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev = self.get_revision(location)
+        req = '%s@%s#egg=%s' % (repo, current_rev, egg_project_name)
+        subdirectory = self._get_subdirectory(location)
+        if subdirectory:
+            req += '&subdirectory=' + subdirectory
+        return req
+
+    def get_url_rev(self):
+        """
+        Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
+        That's required because although they use SSH they sometimes doesn't
+        work with a ssh:// scheme (e.g. Github). But we need a scheme for
+        parsing. Hence we remove it again afterwards and return it as a stub.
+        """
+        if '://' not in self.url:
+            assert 'file:' not in self.url
+            self.url = self.url.replace('git+', 'git+ssh://')
+            url, rev = super(Git, self).get_url_rev()
+            url = url.replace('ssh://', '')
+        else:
+            url, rev = super(Git, self).get_url_rev()
+
+        return url, rev
+
+    def update_submodules(self, location):
+        if not os.path.exists(os.path.join(location, '.gitmodules')):
+            return
+        self.run_command(
+            ['submodule', 'update', '--init', '--recursive', '-q'],
+            cwd=location,
+        )
+
+    @classmethod
+    def controls_location(cls, location):
+        if super(Git, cls).controls_location(location):
+            return True
+        try:
+            r = cls().run_command(['rev-parse'],
+                                  cwd=location,
+                                  show_stdout=False,
+                                  on_returncode='ignore')
+            return not r
+        except BadCommand:
+            logger.debug("could not determine if %s is under git control "
+                         "because git is not available", location)
+            return False
+
+
+vcs.register(Git)
diff --git a/venv/lib/python3.5/site-packages/pip/vcs/mercurial.py b/venv/lib/python3.5/site-packages/pip/vcs/mercurial.py
new file mode 100644
index 0000000..1aa83b9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/vcs/mercurial.py
@@ -0,0 +1,103 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+from pip.utils import display_path, rmtree
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url
+from pip._vendor.six.moves import configparser
+
+
+logger = logging.getLogger(__name__)
+
+
+class Mercurial(VersionControl):
+    name = 'hg'
+    dirname = '.hg'
+    repo_name = 'clone'
+    schemes = ('hg', 'hg+http', 'hg+https', 'hg+ssh', 'hg+static-http')
+
+    def export(self, location):
+        """Export the Hg repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            self.run_command(
+                ['archive', location], show_stdout=False, cwd=temp_dir)
+        finally:
+            rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        repo_config = os.path.join(dest, self.dirname, 'hgrc')
+        config = configparser.SafeConfigParser()
+        try:
+            config.read(repo_config)
+            config.set('paths', 'default', url)
+            with open(repo_config, 'w') as config_file:
+                config.write(config_file)
+        except (OSError, configparser.NoSectionError) as exc:
+            logger.warning(
+                'Could not switch Mercurial repository to %s: %s', url, exc,
+            )
+        else:
+            self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def update(self, dest, rev_options):
+        self.run_command(['pull', '-q'], cwd=dest)
+        self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Cloning hg %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['clone', '--noupdate', '-q', url, dest])
+            self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def get_url(self, location):
+        url = self.run_command(
+            ['showconfig', 'paths.default'],
+            show_stdout=False, cwd=location).strip()
+        if self._is_local_repository(url):
+            url = path_to_url(url)
+        return url.strip()
+
+    def get_revision(self, location):
+        current_revision = self.run_command(
+            ['parents', '--template={rev}'],
+            show_stdout=False, cwd=location).strip()
+        return current_revision
+
+    def get_revision_hash(self, location):
+        current_rev_hash = self.run_command(
+            ['parents', '--template={node}'],
+            show_stdout=False, cwd=location).strip()
+        return current_rev_hash
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('hg:'):
+            repo = 'hg+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev_hash = self.get_revision_hash(location)
+        return '%s@%s#egg=%s' % (repo, current_rev_hash, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+vcs.register(Mercurial)
diff --git a/venv/lib/python3.5/site-packages/pip/vcs/subversion.py b/venv/lib/python3.5/site-packages/pip/vcs/subversion.py
new file mode 100644
index 0000000..4b23156
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/vcs/subversion.py
@@ -0,0 +1,269 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import re
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+from pip.index import Link
+from pip.utils import rmtree, display_path
+from pip.utils.logging import indent_log
+from pip.vcs import vcs, VersionControl
+
+_svn_xml_url_re = re.compile('url="([^"]+)"')
+_svn_rev_re = re.compile('committed-rev="(\d+)"')
+_svn_url_re = re.compile(r'URL: (.+)')
+_svn_revision_re = re.compile(r'Revision: (.+)')
+_svn_info_xml_rev_re = re.compile(r'\s*revision="(\d+)"')
+_svn_info_xml_url_re = re.compile(r'<url>(.*)</url>')
+
+
+logger = logging.getLogger(__name__)
+
+
+class Subversion(VersionControl):
+    name = 'svn'
+    dirname = '.svn'
+    repo_name = 'checkout'
+    schemes = ('svn', 'svn+ssh', 'svn+http', 'svn+https', 'svn+svn')
+
+    def get_info(self, location):
+        """Returns (url, revision), where both are strings"""
+        assert not location.rstrip('/').endswith(self.dirname), \
+            'Bad directory: %s' % location
+        output = self.run_command(
+            ['info', location],
+            show_stdout=False,
+            extra_environ={'LANG': 'C'},
+        )
+        match = _svn_url_re.search(output)
+        if not match:
+            logger.warning(
+                'Cannot determine URL of svn checkout %s',
+                display_path(location),
+            )
+            logger.debug('Output that cannot be parsed: \n%s', output)
+            return None, None
+        url = match.group(1).strip()
+        match = _svn_revision_re.search(output)
+        if not match:
+            logger.warning(
+                'Cannot determine revision of svn checkout %s',
+                display_path(location),
+            )
+            logger.debug('Output that cannot be parsed: \n%s', output)
+            return url, None
+        return url, match.group(1)
+
+    def export(self, location):
+        """Export the svn repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        rev_options = get_rev_options(url, rev)
+        url = self.remove_auth_from_url(url)
+        logger.info('Exporting svn repository %s to %s', url, location)
+        with indent_log():
+            if os.path.exists(location):
+                # Subversion doesn't like to check out over an existing
+                # directory --force fixes this, but was only added in svn 1.5
+                rmtree(location)
+            self.run_command(
+                ['export'] + rev_options + [url, location],
+                show_stdout=False)
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['switch'] + rev_options + [url, dest])
+
+    def update(self, dest, rev_options):
+        self.run_command(['update'] + rev_options + [dest])
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        rev_options = get_rev_options(url, rev)
+        url = self.remove_auth_from_url(url)
+        if rev:
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Checking out %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['checkout', '-q'] + rev_options + [url, dest])
+
+    def get_location(self, dist, dependency_links):
+        for url in dependency_links:
+            egg_fragment = Link(url).egg_fragment
+            if not egg_fragment:
+                continue
+            if '-' in egg_fragment:
+                # FIXME: will this work when a package has - in the name?
+                key = '-'.join(egg_fragment.split('-')[:-1]).lower()
+            else:
+                key = egg_fragment
+            if key == dist.key:
+                return url.split('#', 1)[0]
+        return None
+
+    def get_revision(self, location):
+        """
+        Return the maximum revision for all files under a given location
+        """
+        # Note: taken from setuptools.command.egg_info
+        revision = 0
+
+        for base, dirs, files in os.walk(location):
+            if self.dirname not in dirs:
+                dirs[:] = []
+                continue    # no sense walking uncontrolled subdirs
+            dirs.remove(self.dirname)
+            entries_fn = os.path.join(base, self.dirname, 'entries')
+            if not os.path.exists(entries_fn):
+                # FIXME: should we warn?
+                continue
+
+            dirurl, localrev = self._get_svn_url_rev(base)
+
+            if base == location:
+                base_url = dirurl + '/'   # save the root url
+            elif not dirurl or not dirurl.startswith(base_url):
+                dirs[:] = []
+                continue    # not part of the same svn tree, skip it
+            revision = max(revision, localrev)
+        return revision
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing svn+ from svn+ssh:// readd it
+        url, rev = super(Subversion, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'svn+' + url
+        return url, rev
+
+    def get_url(self, location):
+        # In cases where the source is in a subdirectory, not alongside
+        # setup.py we have to look up in the location until we find a real
+        # setup.py
+        orig_location = location
+        while not os.path.exists(os.path.join(location, 'setup.py')):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without
+                # finding setup.py
+                logger.warning(
+                    "Could not find setup.py for directory %s (tried all "
+                    "parent directories)",
+                    orig_location,
+                )
+                return None
+
+        return self._get_svn_url_rev(location)[0]
+
+    def _get_svn_url_rev(self, location):
+        from pip.exceptions import InstallationError
+
+        entries_path = os.path.join(location, self.dirname, 'entries')
+        if os.path.exists(entries_path):
+            with open(entries_path) as f:
+                data = f.read()
+        else:  # subversion >= 1.7 does not have the 'entries' file
+            data = ''
+
+        if (data.startswith('8') or
+                data.startswith('9') or
+                data.startswith('10')):
+            data = list(map(str.splitlines, data.split('\n\x0c\n')))
+            del data[0][0]  # get rid of the '8'
+            url = data[0][3]
+            revs = [int(d[9]) for d in data if len(d) > 9 and d[9]] + [0]
+        elif data.startswith('<?xml'):
+            match = _svn_xml_url_re.search(data)
+            if not match:
+                raise ValueError('Badly formatted data: %r' % data)
+            url = match.group(1)    # get repository URL
+            revs = [int(m.group(1)) for m in _svn_rev_re.finditer(data)] + [0]
+        else:
+            try:
+                # subversion >= 1.7
+                xml = self.run_command(
+                    ['info', '--xml', location],
+                    show_stdout=False,
+                )
+                url = _svn_info_xml_url_re.search(xml).group(1)
+                revs = [
+                    int(m.group(1)) for m in _svn_info_xml_rev_re.finditer(xml)
+                ]
+            except InstallationError:
+                url, revs = None, []
+
+        if revs:
+            rev = max(revs)
+        else:
+            rev = 0
+
+        return url, rev
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if repo is None:
+            return None
+        # FIXME: why not project name?
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        rev = self.get_revision(location)
+        return 'svn+%s@%s#egg=%s' % (repo, rev, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+    @staticmethod
+    def remove_auth_from_url(url):
+        # Return a copy of url with 'username:password@' removed.
+        # username/pass params are passed to subversion through flags
+        # and are not recognized in the url.
+
+        # parsed url
+        purl = urllib_parse.urlsplit(url)
+        stripped_netloc = \
+            purl.netloc.split('@')[-1]
+
+        # stripped url
+        url_pieces = (
+            purl.scheme, stripped_netloc, purl.path, purl.query, purl.fragment
+        )
+        surl = urllib_parse.urlunsplit(url_pieces)
+        return surl
+
+
+def get_rev_options(url, rev):
+    if rev:
+        rev_options = ['-r', rev]
+    else:
+        rev_options = []
+
+    r = urllib_parse.urlsplit(url)
+    if hasattr(r, 'username'):
+        # >= Python-2.5
+        username, password = r.username, r.password
+    else:
+        netloc = r[1]
+        if '@' in netloc:
+            auth = netloc.split('@')[0]
+            if ':' in auth:
+                username, password = auth.split(':', 1)
+            else:
+                username, password = auth, None
+        else:
+            username, password = None, None
+
+    if username:
+        rev_options += ['--username', username]
+    if password:
+        rev_options += ['--password', password]
+    return rev_options
+
+
+vcs.register(Subversion)
diff --git a/venv/lib/python3.5/site-packages/pip/wheel.py b/venv/lib/python3.5/site-packages/pip/wheel.py
new file mode 100644
index 0000000..9ac9dff
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pip/wheel.py
@@ -0,0 +1,853 @@
+"""
+Support for installing and building the "wheel" binary package format.
+"""
+from __future__ import absolute_import
+
+import compileall
+import csv
+import errno
+import functools
+import hashlib
+import logging
+import os
+import os.path
+import re
+import shutil
+import stat
+import sys
+import tempfile
+import warnings
+
+from base64 import urlsafe_b64encode
+from email.parser import Parser
+
+from pip._vendor.six import StringIO
+
+import pip
+from pip.compat import expanduser
+from pip.download import path_to_url, unpack_url
+from pip.exceptions import (
+    InstallationError, InvalidWheelFilename, UnsupportedWheel)
+from pip.locations import distutils_scheme, PIP_DELETE_MARKER_FILENAME
+from pip import pep425tags
+from pip.utils import (
+    call_subprocess, ensure_dir, captured_stdout, rmtree, read_chunks,
+)
+from pip.utils.ui import open_spinner
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip._vendor.distlib.scripts import ScriptMaker
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.six.moves import configparser
+
+
+wheel_ext = '.whl'
+
+VERSION_COMPATIBLE = (1, 0)
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCache(object):
+    """A cache of wheels for future installs."""
+
+    def __init__(self, cache_dir, format_control):
+        """Create a wheel cache.
+
+        :param cache_dir: The root of the cache.
+        :param format_control: A pip.index.FormatControl object to limit
+            binaries being read from the cache.
+        """
+        self._cache_dir = expanduser(cache_dir) if cache_dir else None
+        self._format_control = format_control
+
+    def cached_wheel(self, link, package_name):
+        return cached_wheel(
+            self._cache_dir, link, self._format_control, package_name)
+
+
+def _cache_for_link(cache_dir, link):
+    """
+    Return a directory to store cached wheels in for link.
+
+    Because there are M wheels for any one sdist, we provide a directory
+    to cache them in, and then consult that directory when looking up
+    cache hits.
+
+    We only insert things into the cache if they have plausible version
+    numbers, so that we don't contaminate the cache with things that were not
+    unique. E.g. ./package might have dozens of installs done for it and build
+    a version of 0.0...and if we built and cached a wheel, we'd end up using
+    the same wheel even if the source has been edited.
+
+    :param cache_dir: The cache_dir being used by pip.
+    :param link: The link of the sdist for which this will cache wheels.
+    """
+
+    # We want to generate an url to use as our cache key, we don't want to just
+    # re-use the URL because it might have other items in the fragment and we
+    # don't care about those.
+    key_parts = [link.url_without_fragment]
+    if link.hash_name is not None and link.hash is not None:
+        key_parts.append("=".join([link.hash_name, link.hash]))
+    key_url = "#".join(key_parts)
+
+    # Encode our key url with sha224, we'll use this because it has similar
+    # security properties to sha256, but with a shorter total output (and thus
+    # less secure). However the differences don't make a lot of difference for
+    # our use case here.
+    hashed = hashlib.sha224(key_url.encode()).hexdigest()
+
+    # We want to nest the directories some to prevent having a ton of top level
+    # directories where we might run out of sub directories on some FS.
+    parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
+
+    # Inside of the base location for cached wheels, expand our parts and join
+    # them all together.
+    return os.path.join(cache_dir, "wheels", *parts)
+
+
+def cached_wheel(cache_dir, link, format_control, package_name):
+    if not cache_dir:
+        return link
+    if not link:
+        return link
+    if link.is_wheel:
+        return link
+    if not link.is_artifact:
+        return link
+    if not package_name:
+        return link
+    canonical_name = canonicalize_name(package_name)
+    formats = pip.index.fmt_ctl_formats(format_control, canonical_name)
+    if "binary" not in formats:
+        return link
+    root = _cache_for_link(cache_dir, link)
+    try:
+        wheel_names = os.listdir(root)
+    except OSError as e:
+        if e.errno in (errno.ENOENT, errno.ENOTDIR):
+            return link
+        raise
+    candidates = []
+    for wheel_name in wheel_names:
+        try:
+            wheel = Wheel(wheel_name)
+        except InvalidWheelFilename:
+            continue
+        if not wheel.supported():
+            # Built for a different python/arch/etc
+            continue
+        candidates.append((wheel.support_index_min(), wheel_name))
+    if not candidates:
+        return link
+    candidates.sort()
+    path = os.path.join(root, candidates[0][1])
+    return pip.index.Link(path_to_url(path))
+
+
+def rehash(path, algo='sha256', blocksize=1 << 20):
+    """Return (hash, length) for path using hashlib.new(algo)"""
+    h = hashlib.new(algo)
+    length = 0
+    with open(path, 'rb') as f:
+        for block in read_chunks(f, size=blocksize):
+            length += len(block)
+            h.update(block)
+    digest = 'sha256=' + urlsafe_b64encode(
+        h.digest()
+    ).decode('latin1').rstrip('=')
+    return (digest, length)
+
+
+def open_for_csv(name, mode):
+    if sys.version_info[0] < 3:
+        nl = {}
+        bin = 'b'
+    else:
+        nl = {'newline': ''}
+        bin = ''
+    return open(name, mode + bin, **nl)
+
+
+def fix_script(path):
+    """Replace #!python with #!/path/to/python
+    Return True if file was changed."""
+    # XXX RECORD hashes will need to be updated
+    if os.path.isfile(path):
+        with open(path, 'rb') as script:
+            firstline = script.readline()
+            if not firstline.startswith(b'#!python'):
+                return False
+            exename = sys.executable.encode(sys.getfilesystemencoding())
+            firstline = b'#!' + exename + os.linesep.encode("ascii")
+            rest = script.read()
+        with open(path, 'wb') as script:
+            script.write(firstline)
+            script.write(rest)
+        return True
+
+dist_info_re = re.compile(r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
+                                \.dist-info$""", re.VERBOSE)
+
+
+def root_is_purelib(name, wheeldir):
+    """
+    Return True if the extracted wheel in wheeldir should go into purelib.
+    """
+    name_folded = name.replace("-", "_")
+    for item in os.listdir(wheeldir):
+        match = dist_info_re.match(item)
+        if match and match.group('name') == name_folded:
+            with open(os.path.join(wheeldir, item, 'WHEEL')) as wheel:
+                for line in wheel:
+                    line = line.lower().rstrip()
+                    if line == "root-is-purelib: true":
+                        return True
+    return False
+
+
+def get_entrypoints(filename):
+    if not os.path.exists(filename):
+        return {}, {}
+
+    # This is done because you can pass a string to entry_points wrappers which
+    # means that they may or may not be valid INI files. The attempt here is to
+    # strip leading and trailing whitespace in order to make them valid INI
+    # files.
+    with open(filename) as fp:
+        data = StringIO()
+        for line in fp:
+            data.write(line.strip())
+            data.write("\n")
+        data.seek(0)
+
+    cp = configparser.RawConfigParser()
+    cp.optionxform = lambda option: option
+    cp.readfp(data)
+
+    console = {}
+    gui = {}
+    if cp.has_section('console_scripts'):
+        console = dict(cp.items('console_scripts'))
+    if cp.has_section('gui_scripts'):
+        gui = dict(cp.items('gui_scripts'))
+    return console, gui
+
+
+def move_wheel_files(name, req, wheeldir, user=False, home=None, root=None,
+                     pycompile=True, scheme=None, isolated=False, prefix=None):
+    """Install a wheel"""
+
+    if not scheme:
+        scheme = distutils_scheme(
+            name, user=user, home=home, root=root, isolated=isolated,
+            prefix=prefix,
+        )
+
+    if root_is_purelib(name, wheeldir):
+        lib_dir = scheme['purelib']
+    else:
+        lib_dir = scheme['platlib']
+
+    info_dir = []
+    data_dirs = []
+    source = wheeldir.rstrip(os.path.sep) + os.path.sep
+
+    # Record details of the files moved
+    #   installed = files copied from the wheel to the destination
+    #   changed = files changed while installing (scripts #! line typically)
+    #   generated = files newly generated during the install (script wrappers)
+    installed = {}
+    changed = set()
+    generated = []
+
+    # Compile all of the pyc files that we're going to be installing
+    if pycompile:
+        with captured_stdout() as stdout:
+            with warnings.catch_warnings():
+                warnings.filterwarnings('ignore')
+                compileall.compile_dir(source, force=True, quiet=True)
+        logger.debug(stdout.getvalue())
+
+    def normpath(src, p):
+        return os.path.relpath(src, p).replace(os.path.sep, '/')
+
+    def record_installed(srcfile, destfile, modified=False):
+        """Map archive RECORD paths to installation RECORD paths."""
+        oldpath = normpath(srcfile, wheeldir)
+        newpath = normpath(destfile, lib_dir)
+        installed[oldpath] = newpath
+        if modified:
+            changed.add(destfile)
+
+    def clobber(source, dest, is_base, fixer=None, filter=None):
+        ensure_dir(dest)  # common for the 'include' path
+
+        for dir, subdirs, files in os.walk(source):
+            basedir = dir[len(source):].lstrip(os.path.sep)
+            destdir = os.path.join(dest, basedir)
+            if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
+                continue
+            for s in subdirs:
+                destsubdir = os.path.join(dest, basedir, s)
+                if is_base and basedir == '' and destsubdir.endswith('.data'):
+                    data_dirs.append(s)
+                    continue
+                elif (is_base and
+                        s.endswith('.dist-info') and
+                        canonicalize_name(s).startswith(
+                            canonicalize_name(req.name))):
+                    assert not info_dir, ('Multiple .dist-info directories: ' +
+                                          destsubdir + ', ' +
+                                          ', '.join(info_dir))
+                    info_dir.append(destsubdir)
+            for f in files:
+                # Skip unwanted files
+                if filter and filter(f):
+                    continue
+                srcfile = os.path.join(dir, f)
+                destfile = os.path.join(dest, basedir, f)
+                # directory creation is lazy and after the file filtering above
+                # to ensure we don't install empty dirs; empty dirs can't be
+                # uninstalled.
+                ensure_dir(destdir)
+
+                # We use copyfile (not move, copy, or copy2) to be extra sure
+                # that we are not moving directories over (copyfile fails for
+                # directories) as well as to ensure that we are not copying
+                # over any metadata because we want more control over what
+                # metadata we actually copy over.
+                shutil.copyfile(srcfile, destfile)
+
+                # Copy over the metadata for the file, currently this only
+                # includes the atime and mtime.
+                st = os.stat(srcfile)
+                if hasattr(os, "utime"):
+                    os.utime(destfile, (st.st_atime, st.st_mtime))
+
+                # If our file is executable, then make our destination file
+                # executable.
+                if os.access(srcfile, os.X_OK):
+                    st = os.stat(srcfile)
+                    permissions = (
+                        st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
+                    )
+                    os.chmod(destfile, permissions)
+
+                changed = False
+                if fixer:
+                    changed = fixer(destfile)
+                record_installed(srcfile, destfile, changed)
+
+    clobber(source, lib_dir, True)
+
+    assert info_dir, "%s .dist-info directory not found" % req
+
+    # Get the defined entry points
+    ep_file = os.path.join(info_dir[0], 'entry_points.txt')
+    console, gui = get_entrypoints(ep_file)
+
+    def is_entrypoint_wrapper(name):
+        # EP, EP.exe and EP-script.py are scripts generated for
+        # entry point EP by setuptools
+        if name.lower().endswith('.exe'):
+            matchname = name[:-4]
+        elif name.lower().endswith('-script.py'):
+            matchname = name[:-10]
+        elif name.lower().endswith(".pya"):
+            matchname = name[:-4]
+        else:
+            matchname = name
+        # Ignore setuptools-generated scripts
+        return (matchname in console or matchname in gui)
+
+    for datadir in data_dirs:
+        fixer = None
+        filter = None
+        for subdir in os.listdir(os.path.join(wheeldir, datadir)):
+            fixer = None
+            if subdir == 'scripts':
+                fixer = fix_script
+                filter = is_entrypoint_wrapper
+            source = os.path.join(wheeldir, datadir, subdir)
+            dest = scheme[subdir]
+            clobber(source, dest, False, fixer=fixer, filter=filter)
+
+    maker = ScriptMaker(None, scheme['scripts'])
+
+    # Ensure old scripts are overwritten.
+    # See https://github.com/pypa/pip/issues/1800
+    maker.clobber = True
+
+    # Ensure we don't generate any variants for scripts because this is almost
+    # never what somebody wants.
+    # See https://bitbucket.org/pypa/distlib/issue/35/
+    maker.variants = set(('', ))
+
+    # This is required because otherwise distlib creates scripts that are not
+    # executable.
+    # See https://bitbucket.org/pypa/distlib/issue/32/
+    maker.set_mode = True
+
+    # Simplify the script and fix the fact that the default script swallows
+    # every single stack trace.
+    # See https://bitbucket.org/pypa/distlib/issue/34/
+    # See https://bitbucket.org/pypa/distlib/issue/33/
+    def _get_script_text(entry):
+        if entry.suffix is None:
+            raise InstallationError(
+                "Invalid script entry point: %s for req: %s - A callable "
+                "suffix is required. Cf https://packaging.python.org/en/"
+                "latest/distributing.html#console-scripts for more "
+                "information." % (entry, req)
+            )
+        return maker.script_template % {
+            "module": entry.prefix,
+            "import_name": entry.suffix.split(".")[0],
+            "func": entry.suffix,
+        }
+
+    maker._get_script_text = _get_script_text
+    maker.script_template = """# -*- coding: utf-8 -*-
+import re
+import sys
+
+from %(module)s import %(import_name)s
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(%(func)s())
+"""
+
+    # Special case pip and setuptools to generate versioned wrappers
+    #
+    # The issue is that some projects (specifically, pip and setuptools) use
+    # code in setup.py to create "versioned" entry points - pip2.7 on Python
+    # 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
+    # the wheel metadata at build time, and so if the wheel is installed with
+    # a *different* version of Python the entry points will be wrong. The
+    # correct fix for this is to enhance the metadata to be able to describe
+    # such versioned entry points, but that won't happen till Metadata 2.0 is
+    # available.
+    # In the meantime, projects using versioned entry points will either have
+    # incorrect versioned entry points, or they will not be able to distribute
+    # "universal" wheels (i.e., they will need a wheel per Python version).
+    #
+    # Because setuptools and pip are bundled with _ensurepip and virtualenv,
+    # we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
+    # override the versioned entry points in the wheel and generate the
+    # correct ones. This code is purely a short-term measure until Metadata 2.0
+    # is available.
+    #
+    # To add the level of hack in this section of code, in order to support
+    # ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
+    # variable which will control which version scripts get installed.
+    #
+    # ENSUREPIP_OPTIONS=altinstall
+    #   - Only pipX.Y and easy_install-X.Y will be generated and installed
+    # ENSUREPIP_OPTIONS=install
+    #   - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
+    #     that this option is technically if ENSUREPIP_OPTIONS is set and is
+    #     not altinstall
+    # DEFAULT
+    #   - The default behavior is to install pip, pipX, pipX.Y, easy_install
+    #     and easy_install-X.Y.
+    pip_script = console.pop('pip', None)
+    if pip_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'pip = ' + pip_script
+            generated.extend(maker.make(spec))
+
+        if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
+            spec = 'pip%s = %s' % (sys.version[:1], pip_script)
+            generated.extend(maker.make(spec))
+
+        spec = 'pip%s = %s' % (sys.version[:3], pip_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned pip entry points
+        pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
+        for k in pip_ep:
+            del console[k]
+    easy_install_script = console.pop('easy_install', None)
+    if easy_install_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'easy_install = ' + easy_install_script
+            generated.extend(maker.make(spec))
+
+        spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned easy_install entry points
+        easy_install_ep = [
+            k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
+        ]
+        for k in easy_install_ep:
+            del console[k]
+
+    # Generate the console and GUI entry points specified in the wheel
+    if len(console) > 0:
+        generated.extend(
+            maker.make_multiple(['%s = %s' % kv for kv in console.items()])
+        )
+    if len(gui) > 0:
+        generated.extend(
+            maker.make_multiple(
+                ['%s = %s' % kv for kv in gui.items()],
+                {'gui': True}
+            )
+        )
+
+    # Record pip as the installer
+    installer = os.path.join(info_dir[0], 'INSTALLER')
+    temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
+    with open(temp_installer, 'wb') as installer_file:
+        installer_file.write(b'pip\n')
+    shutil.move(temp_installer, installer)
+    generated.append(installer)
+
+    # Record details of all files installed
+    record = os.path.join(info_dir[0], 'RECORD')
+    temp_record = os.path.join(info_dir[0], 'RECORD.pip')
+    with open_for_csv(record, 'r') as record_in:
+        with open_for_csv(temp_record, 'w+') as record_out:
+            reader = csv.reader(record_in)
+            writer = csv.writer(record_out)
+            for row in reader:
+                row[0] = installed.pop(row[0], row[0])
+                if row[0] in changed:
+                    row[1], row[2] = rehash(row[0])
+                writer.writerow(row)
+            for f in generated:
+                h, l = rehash(f)
+                writer.writerow((normpath(f, lib_dir), h, l))
+            for f in installed:
+                writer.writerow((installed[f], '', ''))
+    shutil.move(temp_record, record)
+
+
+def _unique(fn):
+    @functools.wraps(fn)
+    def unique(*args, **kw):
+        seen = set()
+        for item in fn(*args, **kw):
+            if item not in seen:
+                seen.add(item)
+                yield item
+    return unique
+
+
+# TODO: this goes somewhere besides the wheel module
+@_unique
+def uninstallation_paths(dist):
+    """
+    Yield all the uninstallation paths for dist based on RECORD-without-.pyc
+
+    Yield paths to all the files in RECORD. For each .py file in RECORD, add
+    the .pyc in the same directory.
+
+    UninstallPathSet.add() takes care of the __pycache__ .pyc.
+    """
+    from pip.utils import FakeFile  # circular import
+    r = csv.reader(FakeFile(dist.get_metadata_lines('RECORD')))
+    for row in r:
+        path = os.path.join(dist.location, row[0])
+        yield path
+        if path.endswith('.py'):
+            dn, fn = os.path.split(path)
+            base = fn[:-3]
+            path = os.path.join(dn, base + '.pyc')
+            yield path
+
+
+def wheel_version(source_dir):
+    """
+    Return the Wheel-Version of an extracted wheel, if possible.
+
+    Otherwise, return False if we couldn't parse / extract it.
+    """
+    try:
+        dist = [d for d in pkg_resources.find_on_path(None, source_dir)][0]
+
+        wheel_data = dist.get_metadata('WHEEL')
+        wheel_data = Parser().parsestr(wheel_data)
+
+        version = wheel_data['Wheel-Version'].strip()
+        version = tuple(map(int, version.split('.')))
+        return version
+    except:
+        return False
+
+
+def check_compatibility(version, name):
+    """
+    Raises errors or warns if called with an incompatible Wheel-Version.
+
+    Pip should refuse to install a Wheel-Version that's a major series
+    ahead of what it's compatible with (e.g 2.0 > 1.1); and warn when
+    installing a version only minor version ahead (e.g 1.2 > 1.1).
+
+    version: a 2-tuple representing a Wheel-Version (Major, Minor)
+    name: name of wheel or package to raise exception about
+
+    :raises UnsupportedWheel: when an incompatible Wheel-Version is given
+    """
+    if not version:
+        raise UnsupportedWheel(
+            "%s is in an unsupported or invalid wheel" % name
+        )
+    if version[0] > VERSION_COMPATIBLE[0]:
+        raise UnsupportedWheel(
+            "%s's Wheel-Version (%s) is not compatible with this version "
+            "of pip" % (name, '.'.join(map(str, version)))
+        )
+    elif version > VERSION_COMPATIBLE:
+        logger.warning(
+            'Installing from a newer Wheel-Version (%s)',
+            '.'.join(map(str, version)),
+        )
+
+
+class Wheel(object):
+    """A wheel file"""
+
+    # TODO: maybe move the install code into this class
+
+    wheel_file_re = re.compile(
+        r"""^(?P<namever>(?P<name>.+?)-(?P<ver>\d.*?))
+        ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
+        \.whl|\.dist-info)$""",
+        re.VERBOSE
+    )
+
+    def __init__(self, filename):
+        """
+        :raises InvalidWheelFilename: when the filename is invalid for a wheel
+        """
+        wheel_info = self.wheel_file_re.match(filename)
+        if not wheel_info:
+            raise InvalidWheelFilename(
+                "%s is not a valid wheel filename." % filename
+            )
+        self.filename = filename
+        self.name = wheel_info.group('name').replace('_', '-')
+        # we'll assume "_" means "-" due to wheel naming scheme
+        # (https://github.com/pypa/pip/issues/1150)
+        self.version = wheel_info.group('ver').replace('_', '-')
+        self.pyversions = wheel_info.group('pyver').split('.')
+        self.abis = wheel_info.group('abi').split('.')
+        self.plats = wheel_info.group('plat').split('.')
+
+        # All the tag combinations from this file
+        self.file_tags = set(
+            (x, y, z) for x in self.pyversions
+            for y in self.abis for z in self.plats
+        )
+
+    def support_index_min(self, tags=None):
+        """
+        Return the lowest index that one of the wheel's file_tag combinations
+        achieves in the supported_tags list e.g. if there are 8 supported tags,
+        and one of the file tags is first in the list, then return 0.  Returns
+        None is the wheel is not supported.
+        """
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        indexes = [tags.index(c) for c in self.file_tags if c in tags]
+        return min(indexes) if indexes else None
+
+    def supported(self, tags=None):
+        """Is this wheel supported on this system?"""
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        return bool(set(tags).intersection(self.file_tags))
+
+
+class WheelBuilder(object):
+    """Build wheels from a RequirementSet."""
+
+    def __init__(self, requirement_set, finder, build_options=None,
+                 global_options=None):
+        self.requirement_set = requirement_set
+        self.finder = finder
+        self._cache_root = requirement_set._wheel_cache._cache_dir
+        self._wheel_dir = requirement_set.wheel_download_dir
+        self.build_options = build_options or []
+        self.global_options = global_options or []
+
+    def _build_one(self, req, output_dir, python_tag=None):
+        """Build one wheel.
+
+        :return: The filename of the built wheel, or None if the build failed.
+        """
+        tempd = tempfile.mkdtemp('pip-wheel-')
+        try:
+            if self.__build_one(req, tempd, python_tag=python_tag):
+                try:
+                    wheel_name = os.listdir(tempd)[0]
+                    wheel_path = os.path.join(output_dir, wheel_name)
+                    shutil.move(os.path.join(tempd, wheel_name), wheel_path)
+                    logger.info('Stored in directory: %s', output_dir)
+                    return wheel_path
+                except:
+                    pass
+            # Ignore return, we can't do anything else useful.
+            self._clean_one(req)
+            return None
+        finally:
+            rmtree(tempd)
+
+    def _base_setup_args(self, req):
+        return [
+            sys.executable, "-u", '-c',
+            SETUPTOOLS_SHIM % req.setup_py
+        ] + list(self.global_options)
+
+    def __build_one(self, req, tempd, python_tag=None):
+        base_args = self._base_setup_args(req)
+
+        spin_message = 'Running setup.py bdist_wheel for %s' % (req.name,)
+        with open_spinner(spin_message) as spinner:
+            logger.debug('Destination directory: %s', tempd)
+            wheel_args = base_args + ['bdist_wheel', '-d', tempd] \
+                + self.build_options
+
+            if python_tag is not None:
+                wheel_args += ["--python-tag", python_tag]
+
+            try:
+                call_subprocess(wheel_args, cwd=req.setup_py_dir,
+                                show_stdout=False, spinner=spinner)
+                return True
+            except:
+                spinner.finish("error")
+                logger.error('Failed building wheel for %s', req.name)
+                return False
+
+    def _clean_one(self, req):
+        base_args = self._base_setup_args(req)
+
+        logger.info('Running setup.py clean for %s', req.name)
+        clean_args = base_args + ['clean', '--all']
+        try:
+            call_subprocess(clean_args, cwd=req.source_dir, show_stdout=False)
+            return True
+        except:
+            logger.error('Failed cleaning build dir for %s', req.name)
+            return False
+
+    def build(self, autobuilding=False):
+        """Build wheels.
+
+        :param unpack: If True, replace the sdist we built from with the
+            newly built wheel, in preparation for installation.
+        :return: True if all the wheels built correctly.
+        """
+        assert self._wheel_dir or (autobuilding and self._cache_root)
+        # unpack sdists and constructs req set
+        self.requirement_set.prepare_files(self.finder)
+
+        reqset = self.requirement_set.requirements.values()
+
+        buildset = []
+        for req in reqset:
+            if req.constraint:
+                continue
+            if req.is_wheel:
+                if not autobuilding:
+                    logger.info(
+                        'Skipping %s, due to already being wheel.', req.name)
+            elif autobuilding and req.editable:
+                pass
+            elif autobuilding and req.link and not req.link.is_artifact:
+                pass
+            elif autobuilding and not req.source_dir:
+                pass
+            else:
+                if autobuilding:
+                    link = req.link
+                    base, ext = link.splitext()
+                    if pip.index.egg_info_matches(base, None, link) is None:
+                        # Doesn't look like a package - don't autobuild a wheel
+                        # because we'll have no way to lookup the result sanely
+                        continue
+                    if "binary" not in pip.index.fmt_ctl_formats(
+                            self.finder.format_control,
+                            canonicalize_name(req.name)):
+                        logger.info(
+                            "Skipping bdist_wheel for %s, due to binaries "
+                            "being disabled for it.", req.name)
+                        continue
+                buildset.append(req)
+
+        if not buildset:
+            return True
+
+        # Build the wheels.
+        logger.info(
+            'Building wheels for collected packages: %s',
+            ', '.join([req.name for req in buildset]),
+        )
+        with indent_log():
+            build_success, build_failure = [], []
+            for req in buildset:
+                python_tag = None
+                if autobuilding:
+                    python_tag = pep425tags.implementation_tag
+                    output_dir = _cache_for_link(self._cache_root, req.link)
+                    try:
+                        ensure_dir(output_dir)
+                    except OSError as e:
+                        logger.warning("Building wheel for %s failed: %s",
+                                       req.name, e)
+                        build_failure.append(req)
+                        continue
+                else:
+                    output_dir = self._wheel_dir
+                wheel_file = self._build_one(
+                    req, output_dir,
+                    python_tag=python_tag,
+                )
+                if wheel_file:
+                    build_success.append(req)
+                    if autobuilding:
+                        # XXX: This is mildly duplicative with prepare_files,
+                        # but not close enough to pull out to a single common
+                        # method.
+                        # The code below assumes temporary source dirs -
+                        # prevent it doing bad things.
+                        if req.source_dir and not os.path.exists(os.path.join(
+                                req.source_dir, PIP_DELETE_MARKER_FILENAME)):
+                            raise AssertionError(
+                                "bad source dir - missing marker")
+                        # Delete the source we built the wheel from
+                        req.remove_temporary_source()
+                        # set the build directory again - name is known from
+                        # the work prepare_files did.
+                        req.source_dir = req.build_location(
+                            self.requirement_set.build_dir)
+                        # Update the link for this.
+                        req.link = pip.index.Link(
+                            path_to_url(wheel_file))
+                        assert req.link.is_wheel
+                        # extract the wheel into the dir
+                        unpack_url(
+                            req.link, req.source_dir, None, False,
+                            session=self.requirement_set.session)
+                else:
+                    build_failure.append(req)
+
+        # notify success/failure
+        if build_success:
+            logger.info(
+                'Successfully built %s',
+                ' '.join([req.name for req in build_success]),
+            )
+        if build_failure:
+            logger.info(
+                'Failed to build %s',
+                ' '.join([req.name for req in build_failure]),
+            )
+        # Return True if all builds were successful
+        return len(build_failure) == 0
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/__init__.py b/venv/lib/python3.5/site-packages/pkg_resources/__init__.py
new file mode 100644
index 0000000..7333464
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/__init__.py
@@ -0,0 +1,3181 @@
+# coding: utf-8
+"""
+Package resource API
+--------------------
+
+A resource is a logical file contained within a package, or a logical
+subdirectory thereof.  The package resource API expects resource names
+to have their path parts separated with ``/``, *not* whatever the local
+path separator is.  Do not use os.path operations to manipulate resource
+names being passed into the API.
+
+The package resource API is designed to work with normal filesystem packages,
+.egg files, and unpacked .egg files.  It can also work in a limited way with
+.zip files and with custom PEP 302 loaders that support the ``get_data()``
+method.
+"""
+
+from __future__ import absolute_import
+
+import sys
+import os
+import io
+import time
+import re
+import types
+import zipfile
+import zipimport
+import warnings
+import stat
+import functools
+import pkgutil
+import operator
+import platform
+import collections
+import plistlib
+import email.parser
+import errno
+import tempfile
+import textwrap
+import itertools
+import inspect
+from pkgutil import get_importer
+
+try:
+    import _imp
+except ImportError:
+    # Python 3.2 compatibility
+    import imp as _imp
+
+from pkg_resources.extern import six
+from pkg_resources.extern.six.moves import urllib, map, filter
+
+# capture these to bypass sandboxing
+from os import utime
+try:
+    from os import mkdir, rename, unlink
+    WRITE_SUPPORT = True
+except ImportError:
+    # no write support, probably under GAE
+    WRITE_SUPPORT = False
+
+from os import open as os_open
+from os.path import isdir, split
+
+try:
+    import importlib.machinery as importlib_machinery
+    # access attribute to force import under delayed import mechanisms.
+    importlib_machinery.__name__
+except ImportError:
+    importlib_machinery = None
+
+from . import py31compat
+from pkg_resources.extern import appdirs
+from pkg_resources.extern import packaging
+__import__('pkg_resources.extern.packaging.version')
+__import__('pkg_resources.extern.packaging.specifiers')
+__import__('pkg_resources.extern.packaging.requirements')
+__import__('pkg_resources.extern.packaging.markers')
+
+
+if (3, 0) < sys.version_info < (3, 3):
+    raise RuntimeError("Python 3.3 or later is required")
+
+if six.PY2:
+    # Those builtin exceptions are only defined in Python 3
+    PermissionError = None
+    NotADirectoryError = None
+
+# declare some globals that will be defined later to
+# satisfy the linters.
+require = None
+working_set = None
+
+
+class PEP440Warning(RuntimeWarning):
+    """
+    Used when there is an issue with a version or specifier not complying with
+    PEP 440.
+    """
+
+
+class _SetuptoolsVersionMixin(object):
+    def __hash__(self):
+        return super(_SetuptoolsVersionMixin, self).__hash__()
+
+    def __lt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) < other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__lt__(other)
+
+    def __le__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) <= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__le__(other)
+
+    def __eq__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) == other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__eq__(other)
+
+    def __ge__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) >= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ge__(other)
+
+    def __gt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) > other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__gt__(other)
+
+    def __ne__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) != other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ne__(other)
+
+    def __getitem__(self, key):
+        return tuple(self)[key]
+
+    def __iter__(self):
+        component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
+        replace = {
+            'pre': 'c',
+            'preview': 'c',
+            '-': 'final-',
+            'rc': 'c',
+            'dev': '@',
+        }.get
+
+        def _parse_version_parts(s):
+            for part in component_re.split(s):
+                part = replace(part, part)
+                if not part or part == '.':
+                    continue
+                if part[:1] in '0123456789':
+                    # pad for numeric comparison
+                    yield part.zfill(8)
+                else:
+                    yield '*' + part
+
+            # ensure that alpha/beta/candidate are before final
+            yield '*final'
+
+        def old_parse_version(s):
+            parts = []
+            for part in _parse_version_parts(s.lower()):
+                if part.startswith('*'):
+                    # remove '-' before a prerelease tag
+                    if part < '*final':
+                        while parts and parts[-1] == '*final-':
+                            parts.pop()
+                    # remove trailing zeros from each series of numeric parts
+                    while parts and parts[-1] == '00000000':
+                        parts.pop()
+                parts.append(part)
+            return tuple(parts)
+
+        # Warn for use of this function
+        warnings.warn(
+            "You have iterated over the result of "
+            "pkg_resources.parse_version. This is a legacy behavior which is "
+            "inconsistent with the new version class introduced in setuptools "
+            "8.0. In most cases, conversion to a tuple is unnecessary. For "
+            "comparison of versions, sort the Version instances directly. If "
+            "you have another use case requiring the tuple, please file a "
+            "bug with the setuptools project describing that need.",
+            RuntimeWarning,
+            stacklevel=1,
+        )
+
+        for part in old_parse_version(str(self)):
+            yield part
+
+
+class SetuptoolsVersion(_SetuptoolsVersionMixin, packaging.version.Version):
+    pass
+
+
+class SetuptoolsLegacyVersion(_SetuptoolsVersionMixin,
+                              packaging.version.LegacyVersion):
+    pass
+
+
+def parse_version(v):
+    try:
+        return SetuptoolsVersion(v)
+    except packaging.version.InvalidVersion:
+        return SetuptoolsLegacyVersion(v)
+
+
+_state_vars = {}
+
+
+def _declare_state(vartype, **kw):
+    globals().update(kw)
+    _state_vars.update(dict.fromkeys(kw, vartype))
+
+
+def __getstate__():
+    state = {}
+    g = globals()
+    for k, v in _state_vars.items():
+        state[k] = g['_sget_' + v](g[k])
+    return state
+
+
+def __setstate__(state):
+    g = globals()
+    for k, v in state.items():
+        g['_sset_' + _state_vars[k]](k, g[k], v)
+    return state
+
+
+def _sget_dict(val):
+    return val.copy()
+
+
+def _sset_dict(key, ob, state):
+    ob.clear()
+    ob.update(state)
+
+
+def _sget_object(val):
+    return val.__getstate__()
+
+
+def _sset_object(key, ob, state):
+    ob.__setstate__(state)
+
+
+_sget_none = _sset_none = lambda *args: None
+
+
+def get_supported_platform():
+    """Return this platform's maximum compatible version.
+
+    distutils.util.get_platform() normally reports the minimum version
+    of Mac OS X that would be required to *use* extensions produced by
+    distutils.  But what we want when checking compatibility is to know the
+    version of Mac OS X that we are *running*.  To allow usage of packages that
+    explicitly require a newer version of Mac OS X, we must also know the
+    current version of the OS.
+
+    If this condition occurs for any other platform with a version in its
+    platform strings, this function should be extended accordingly.
+    """
+    plat = get_build_platform()
+    m = macosVersionString.match(plat)
+    if m is not None and sys.platform == "darwin":
+        try:
+            plat = 'macosx-%s-%s' % ('.'.join(_macosx_vers()[:2]), m.group(3))
+        except ValueError:
+            # not Mac OS X
+            pass
+    return plat
+
+
+__all__ = [
+    # Basic resource access and distribution/entry point discovery
+    'require', 'run_script', 'get_provider', 'get_distribution',
+    'load_entry_point', 'get_entry_map', 'get_entry_info',
+    'iter_entry_points',
+    'resource_string', 'resource_stream', 'resource_filename',
+    'resource_listdir', 'resource_exists', 'resource_isdir',
+
+    # Environmental control
+    'declare_namespace', 'working_set', 'add_activation_listener',
+    'find_distributions', 'set_extraction_path', 'cleanup_resources',
+    'get_default_cache',
+
+    # Primary implementation classes
+    'Environment', 'WorkingSet', 'ResourceManager',
+    'Distribution', 'Requirement', 'EntryPoint',
+
+    # Exceptions
+    'ResolutionError', 'VersionConflict', 'DistributionNotFound',
+    'UnknownExtra', 'ExtractionError',
+
+    # Warnings
+    'PEP440Warning',
+
+    # Parsing functions and string utilities
+    'parse_requirements', 'parse_version', 'safe_name', 'safe_version',
+    'get_platform', 'compatible_platforms', 'yield_lines', 'split_sections',
+    'safe_extra', 'to_filename', 'invalid_marker', 'evaluate_marker',
+
+    # filesystem utilities
+    'ensure_directory', 'normalize_path',
+
+    # Distribution "precedence" constants
+    'EGG_DIST', 'BINARY_DIST', 'SOURCE_DIST', 'CHECKOUT_DIST', 'DEVELOP_DIST',
+
+    # "Provider" interfaces, implementations, and registration/lookup APIs
+    'IMetadataProvider', 'IResourceProvider', 'FileMetadata',
+    'PathMetadata', 'EggMetadata', 'EmptyProvider', 'empty_provider',
+    'NullProvider', 'EggProvider', 'DefaultProvider', 'ZipProvider',
+    'register_finder', 'register_namespace_handler', 'register_loader_type',
+    'fixup_namespace_packages', 'get_importer',
+
+    # Deprecated/backward compatibility only
+    'run_main', 'AvailableDistributions',
+]
+
+
+class ResolutionError(Exception):
+    """Abstract base for dependency resolution errors"""
+
+    def __repr__(self):
+        return self.__class__.__name__ + repr(self.args)
+
+
+class VersionConflict(ResolutionError):
+    """
+    An already-installed version conflicts with the requested version.
+
+    Should be initialized with the installed Distribution and the requested
+    Requirement.
+    """
+
+    _template = "{self.dist} is installed but {self.req} is required"
+
+    @property
+    def dist(self):
+        return self.args[0]
+
+    @property
+    def req(self):
+        return self.args[1]
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def with_context(self, required_by):
+        """
+        If required_by is non-empty, return a version of self that is a
+        ContextualVersionConflict.
+        """
+        if not required_by:
+            return self
+        args = self.args + (required_by,)
+        return ContextualVersionConflict(*args)
+
+
+class ContextualVersionConflict(VersionConflict):
+    """
+    A VersionConflict that accepts a third parameter, the set of the
+    requirements that required the installed Distribution.
+    """
+
+    _template = VersionConflict._template + ' by {self.required_by}'
+
+    @property
+    def required_by(self):
+        return self.args[2]
+
+
+class DistributionNotFound(ResolutionError):
+    """A requested distribution was not found"""
+
+    _template = ("The '{self.req}' distribution was not found "
+                 "and is required by {self.requirers_str}")
+
+    @property
+    def req(self):
+        return self.args[0]
+
+    @property
+    def requirers(self):
+        return self.args[1]
+
+    @property
+    def requirers_str(self):
+        if not self.requirers:
+            return 'the application'
+        return ', '.join(self.requirers)
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def __str__(self):
+        return self.report()
+
+
+class UnknownExtra(ResolutionError):
+    """Distribution doesn't have an "extra feature" of the given name"""
+
+
+_provider_factories = {}
+
+PY_MAJOR = sys.version[:3]
+EGG_DIST = 3
+BINARY_DIST = 2
+SOURCE_DIST = 1
+CHECKOUT_DIST = 0
+DEVELOP_DIST = -1
+
+
+def register_loader_type(loader_type, provider_factory):
+    """Register `provider_factory` to make providers for `loader_type`
+
+    `loader_type` is the type or class of a PEP 302 ``module.__loader__``,
+    and `provider_factory` is a function that, passed a *module* object,
+    returns an ``IResourceProvider`` for that module.
+    """
+    _provider_factories[loader_type] = provider_factory
+
+
+def get_provider(moduleOrReq):
+    """Return an IResourceProvider for the named module or requirement"""
+    if isinstance(moduleOrReq, Requirement):
+        return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
+    try:
+        module = sys.modules[moduleOrReq]
+    except KeyError:
+        __import__(moduleOrReq)
+        module = sys.modules[moduleOrReq]
+    loader = getattr(module, '__loader__', None)
+    return _find_adapter(_provider_factories, loader)(module)
+
+
+def _macosx_vers(_cache=[]):
+    if not _cache:
+        version = platform.mac_ver()[0]
+        # fallback for MacPorts
+        if version == '':
+            plist = '/System/Library/CoreServices/SystemVersion.plist'
+            if os.path.exists(plist):
+                if hasattr(plistlib, 'readPlist'):
+                    plist_content = plistlib.readPlist(plist)
+                    if 'ProductVersion' in plist_content:
+                        version = plist_content['ProductVersion']
+
+        _cache.append(version.split('.'))
+    return _cache[0]
+
+
+def _macosx_arch(machine):
+    return {'PowerPC': 'ppc', 'Power_Macintosh': 'ppc'}.get(machine, machine)
+
+
+def get_build_platform():
+    """Return this platform's string for platform-specific distributions
+
+    XXX Currently this is the same as ``distutils.util.get_platform()``, but it
+    needs some hacks for Linux and Mac OS X.
+    """
+    try:
+        # Python 2.7 or >=3.2
+        from sysconfig import get_platform
+    except ImportError:
+        from distutils.util import get_platform
+
+    plat = get_platform()
+    if sys.platform == "darwin" and not plat.startswith('macosx-'):
+        try:
+            version = _macosx_vers()
+            machine = os.uname()[4].replace(" ", "_")
+            return "macosx-%d.%d-%s" % (
+                int(version[0]), int(version[1]),
+                _macosx_arch(machine),
+            )
+        except ValueError:
+            # if someone is running a non-Mac darwin system, this will fall
+            # through to the default implementation
+            pass
+    return plat
+
+
+macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)")
+darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)")
+# XXX backward compat
+get_platform = get_build_platform
+
+
+def compatible_platforms(provided, required):
+    """Can code for the `provided` platform run on the `required` platform?
+
+    Returns true if either platform is ``None``, or the platforms are equal.
+
+    XXX Needs compatibility checks for Linux and other unixy OSes.
+    """
+    if provided is None or required is None or provided == required:
+        # easy case
+        return True
+
+    # Mac OS X special cases
+    reqMac = macosVersionString.match(required)
+    if reqMac:
+        provMac = macosVersionString.match(provided)
+
+        # is this a Mac package?
+        if not provMac:
+            # this is backwards compatibility for packages built before
+            # setuptools 0.6. All packages built after this point will
+            # use the new macosx designation.
+            provDarwin = darwinVersionString.match(provided)
+            if provDarwin:
+                dversion = int(provDarwin.group(1))
+                macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2))
+                if dversion == 7 and macosversion >= "10.3" or \
+                        dversion == 8 and macosversion >= "10.4":
+                    return True
+            # egg isn't macosx or legacy darwin
+            return False
+
+        # are they the same major version and machine type?
+        if provMac.group(1) != reqMac.group(1) or \
+                provMac.group(3) != reqMac.group(3):
+            return False
+
+        # is the required OS major update >= the provided one?
+        if int(provMac.group(2)) > int(reqMac.group(2)):
+            return False
+
+        return True
+
+    # XXX Linux and other platforms' special cases should go here
+    return False
+
+
+def run_script(dist_spec, script_name):
+    """Locate distribution `dist_spec` and run its `script_name` script"""
+    ns = sys._getframe(1).f_globals
+    name = ns['__name__']
+    ns.clear()
+    ns['__name__'] = name
+    require(dist_spec)[0].run_script(script_name, ns)
+
+
+# backward compatibility
+run_main = run_script
+
+
+def get_distribution(dist):
+    """Return a current distribution object for a Requirement or string"""
+    if isinstance(dist, six.string_types):
+        dist = Requirement.parse(dist)
+    if isinstance(dist, Requirement):
+        dist = get_provider(dist)
+    if not isinstance(dist, Distribution):
+        raise TypeError("Expected string, Requirement, or Distribution", dist)
+    return dist
+
+
+def load_entry_point(dist, group, name):
+    """Return `name` entry point of `group` for `dist` or raise ImportError"""
+    return get_distribution(dist).load_entry_point(group, name)
+
+
+def get_entry_map(dist, group=None):
+    """Return the entry point map for `group`, or the full entry map"""
+    return get_distribution(dist).get_entry_map(group)
+
+
+def get_entry_info(dist, group, name):
+    """Return the EntryPoint object for `group`+`name`, or ``None``"""
+    return get_distribution(dist).get_entry_info(group, name)
+
+
+class IMetadataProvider:
+    def has_metadata(name):
+        """Does the package's distribution contain the named metadata?"""
+
+    def get_metadata(name):
+        """The named metadata resource as a string"""
+
+    def get_metadata_lines(name):
+        """Yield named metadata resource as list of non-blank non-comment lines
+
+       Leading and trailing whitespace is stripped from each line, and lines
+       with ``#`` as the first non-blank character are omitted."""
+
+    def metadata_isdir(name):
+        """Is the named metadata a directory?  (like ``os.path.isdir()``)"""
+
+    def metadata_listdir(name):
+        """List of metadata names in the directory (like ``os.listdir()``)"""
+
+    def run_script(script_name, namespace):
+        """Execute the named script in the supplied namespace dictionary"""
+
+
+class IResourceProvider(IMetadataProvider):
+    """An object that provides access to package resources"""
+
+    def get_resource_filename(manager, resource_name):
+        """Return a true filesystem path for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_stream(manager, resource_name):
+        """Return a readable file-like object for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_string(manager, resource_name):
+        """Return a string containing the contents of `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def has_resource(resource_name):
+        """Does the package contain the named resource?"""
+
+    def resource_isdir(resource_name):
+        """Is the named resource a directory?  (like ``os.path.isdir()``)"""
+
+    def resource_listdir(resource_name):
+        """List of resource names in the directory (like ``os.listdir()``)"""
+
+
+class WorkingSet(object):
+    """A collection of active distributions on sys.path (or a similar list)"""
+
+    def __init__(self, entries=None):
+        """Create working set from list of path entries (default=sys.path)"""
+        self.entries = []
+        self.entry_keys = {}
+        self.by_key = {}
+        self.callbacks = []
+
+        if entries is None:
+            entries = sys.path
+
+        for entry in entries:
+            self.add_entry(entry)
+
+    @classmethod
+    def _build_master(cls):
+        """
+        Prepare the master working set.
+        """
+        ws = cls()
+        try:
+            from __main__ import __requires__
+        except ImportError:
+            # The main program does not list any requirements
+            return ws
+
+        # ensure the requirements are met
+        try:
+            ws.require(__requires__)
+        except VersionConflict:
+            return cls._build_from_requirements(__requires__)
+
+        return ws
+
+    @classmethod
+    def _build_from_requirements(cls, req_spec):
+        """
+        Build a working set from a requirement spec. Rewrites sys.path.
+        """
+        # try it without defaults already on sys.path
+        # by starting with an empty path
+        ws = cls([])
+        reqs = parse_requirements(req_spec)
+        dists = ws.resolve(reqs, Environment())
+        for dist in dists:
+            ws.add(dist)
+
+        # add any missing entries from sys.path
+        for entry in sys.path:
+            if entry not in ws.entries:
+                ws.add_entry(entry)
+
+        # then copy back to sys.path
+        sys.path[:] = ws.entries
+        return ws
+
+    def add_entry(self, entry):
+        """Add a path item to ``.entries``, finding any distributions on it
+
+        ``find_distributions(entry, True)`` is used to find distributions
+        corresponding to the path entry, and they are added.  `entry` is
+        always appended to ``.entries``, even if it is already present.
+        (This is because ``sys.path`` can contain the same value more than
+        once, and the ``.entries`` of the ``sys.path`` WorkingSet should always
+        equal ``sys.path``.)
+        """
+        self.entry_keys.setdefault(entry, [])
+        self.entries.append(entry)
+        for dist in find_distributions(entry, True):
+            self.add(dist, entry, False)
+
+    def __contains__(self, dist):
+        """True if `dist` is the active distribution for its project"""
+        return self.by_key.get(dist.key) == dist
+
+    def find(self, req):
+        """Find a distribution matching requirement `req`
+
+        If there is an active distribution for the requested project, this
+        returns it as long as it meets the version requirement specified by
+        `req`.  But, if there is an active distribution for the project and it
+        does *not* meet the `req` requirement, ``VersionConflict`` is raised.
+        If there is no active distribution for the requested project, ``None``
+        is returned.
+        """
+        dist = self.by_key.get(req.key)
+        if dist is not None and dist not in req:
+            # XXX add more info
+            raise VersionConflict(dist, req)
+        return dist
+
+    def iter_entry_points(self, group, name=None):
+        """Yield entry point objects from `group` matching `name`
+
+        If `name` is None, yields all entry points in `group` from all
+        distributions in the working set, otherwise only ones matching
+        both `group` and `name` are yielded (in distribution order).
+        """
+        for dist in self:
+            entries = dist.get_entry_map(group)
+            if name is None:
+                for ep in entries.values():
+                    yield ep
+            elif name in entries:
+                yield entries[name]
+
+    def run_script(self, requires, script_name):
+        """Locate distribution for `requires` and run `script_name` script"""
+        ns = sys._getframe(1).f_globals
+        name = ns['__name__']
+        ns.clear()
+        ns['__name__'] = name
+        self.require(requires)[0].run_script(script_name, ns)
+
+    def __iter__(self):
+        """Yield distributions for non-duplicate projects in the working set
+
+        The yield order is the order in which the items' path entries were
+        added to the working set.
+        """
+        seen = {}
+        for item in self.entries:
+            if item not in self.entry_keys:
+                # workaround a cache issue
+                continue
+
+            for key in self.entry_keys[item]:
+                if key not in seen:
+                    seen[key] = 1
+                    yield self.by_key[key]
+
+    def add(self, dist, entry=None, insert=True, replace=False):
+        """Add `dist` to working set, associated with `entry`
+
+        If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
+        On exit from this routine, `entry` is added to the end of the working
+        set's ``.entries`` (if it wasn't already present).
+
+        `dist` is only added to the working set if it's for a project that
+        doesn't already have a distribution in the set, unless `replace=True`.
+        If it's added, any callbacks registered with the ``subscribe()`` method
+        will be called.
+        """
+        if insert:
+            dist.insert_on(self.entries, entry, replace=replace)
+
+        if entry is None:
+            entry = dist.location
+        keys = self.entry_keys.setdefault(entry, [])
+        keys2 = self.entry_keys.setdefault(dist.location, [])
+        if not replace and dist.key in self.by_key:
+            # ignore hidden distros
+            return
+
+        self.by_key[dist.key] = dist
+        if dist.key not in keys:
+            keys.append(dist.key)
+        if dist.key not in keys2:
+            keys2.append(dist.key)
+        self._added_new(dist)
+
+    def resolve(self, requirements, env=None, installer=None,
+                replace_conflicting=False, extras=None):
+        """List all distributions needed to (recursively) meet `requirements`
+
+        `requirements` must be a sequence of ``Requirement`` objects.  `env`,
+        if supplied, should be an ``Environment`` instance.  If
+        not supplied, it defaults to all distributions available within any
+        entry or distribution in the working set.  `installer`, if supplied,
+        will be invoked with each requirement that cannot be met by an
+        already-installed distribution; it should return a ``Distribution`` or
+        ``None``.
+
+        Unless `replace_conflicting=True`, raises a VersionConflict exception
+        if
+        any requirements are found on the path that have the correct name but
+        the wrong version.  Otherwise, if an `installer` is supplied it will be
+        invoked to obtain the correct version of the requirement and activate
+        it.
+
+        `extras` is a list of the extras to be used with these requirements.
+        This is important because extra requirements may look like `my_req;
+        extra = "my_extra"`, which would otherwise be interpreted as a purely
+        optional requirement.  Instead, we want to be able to assert that these
+        requirements are truly required.
+        """
+
+        # set up the stack
+        requirements = list(requirements)[::-1]
+        # set of processed requirements
+        processed = {}
+        # key -> dist
+        best = {}
+        to_activate = []
+
+        req_extras = _ReqExtras()
+
+        # Mapping of requirement to set of distributions that required it;
+        # useful for reporting info about conflicts.
+        required_by = collections.defaultdict(set)
+
+        while requirements:
+            # process dependencies breadth-first
+            req = requirements.pop(0)
+            if req in processed:
+                # Ignore cyclic or redundant dependencies
+                continue
+
+            if not req_extras.markers_pass(req, extras):
+                continue
+
+            dist = best.get(req.key)
+            if dist is None:
+                # Find the best distribution and add it to the map
+                dist = self.by_key.get(req.key)
+                if dist is None or (dist not in req and replace_conflicting):
+                    ws = self
+                    if env is None:
+                        if dist is None:
+                            env = Environment(self.entries)
+                        else:
+                            # Use an empty environment and workingset to avoid
+                            # any further conflicts with the conflicting
+                            # distribution
+                            env = Environment([])
+                            ws = WorkingSet([])
+                    dist = best[req.key] = env.best_match(
+                        req, ws, installer,
+                        replace_conflicting=replace_conflicting
+                    )
+                    if dist is None:
+                        requirers = required_by.get(req, None)
+                        raise DistributionNotFound(req, requirers)
+                to_activate.append(dist)
+            if dist not in req:
+                # Oops, the "best" so far conflicts with a dependency
+                dependent_req = required_by[req]
+                raise VersionConflict(dist, req).with_context(dependent_req)
+
+            # push the new requirements onto the stack
+            new_requirements = dist.requires(req.extras)[::-1]
+            requirements.extend(new_requirements)
+
+            # Register the new requirements needed by req
+            for new_requirement in new_requirements:
+                required_by[new_requirement].add(req.project_name)
+                req_extras[new_requirement] = req.extras
+
+            processed[req] = True
+
+        # return list of distros to activate
+        return to_activate
+
+    def find_plugins(
+            self, plugin_env, full_env=None, installer=None, fallback=True):
+        """Find all activatable distributions in `plugin_env`
+
+        Example usage::
+
+            distributions, errors = working_set.find_plugins(
+                Environment(plugin_dirlist)
+            )
+            # add plugins+libs to sys.path
+            map(working_set.add, distributions)
+            # display errors
+            print('Could not load', errors)
+
+        The `plugin_env` should be an ``Environment`` instance that contains
+        only distributions that are in the project's "plugin directory" or
+        directories. The `full_env`, if supplied, should be an ``Environment``
+        contains all currently-available distributions.  If `full_env` is not
+        supplied, one is created automatically from the ``WorkingSet`` this
+        method is called on, which will typically mean that every directory on
+        ``sys.path`` will be scanned for distributions.
+
+        `installer` is a standard installer callback as used by the
+        ``resolve()`` method. The `fallback` flag indicates whether we should
+        attempt to resolve older versions of a plugin if the newest version
+        cannot be resolved.
+
+        This method returns a 2-tuple: (`distributions`, `error_info`), where
+        `distributions` is a list of the distributions found in `plugin_env`
+        that were loadable, along with any other distributions that are needed
+        to resolve their dependencies.  `error_info` is a dictionary mapping
+        unloadable plugin distributions to an exception instance describing the
+        error that occurred. Usually this will be a ``DistributionNotFound`` or
+        ``VersionConflict`` instance.
+        """
+
+        plugin_projects = list(plugin_env)
+        # scan project names in alphabetic order
+        plugin_projects.sort()
+
+        error_info = {}
+        distributions = {}
+
+        if full_env is None:
+            env = Environment(self.entries)
+            env += plugin_env
+        else:
+            env = full_env + plugin_env
+
+        shadow_set = self.__class__([])
+        # put all our entries in shadow_set
+        list(map(shadow_set.add, self))
+
+        for project_name in plugin_projects:
+
+            for dist in plugin_env[project_name]:
+
+                req = [dist.as_requirement()]
+
+                try:
+                    resolvees = shadow_set.resolve(req, env, installer)
+
+                except ResolutionError as v:
+                    # save error info
+                    error_info[dist] = v
+                    if fallback:
+                        # try the next older version of project
+                        continue
+                    else:
+                        # give up on this project, keep going
+                        break
+
+                else:
+                    list(map(shadow_set.add, resolvees))
+                    distributions.update(dict.fromkeys(resolvees))
+
+                    # success, no need to try any more versions of this project
+                    break
+
+        distributions = list(distributions)
+        distributions.sort()
+
+        return distributions, error_info
+
+    def require(self, *requirements):
+        """Ensure that distributions matching `requirements` are activated
+
+        `requirements` must be a string or a (possibly-nested) sequence
+        thereof, specifying the distributions and versions required.  The
+        return value is a sequence of the distributions that needed to be
+        activated to fulfill the requirements; all relevant distributions are
+        included, even if they were already activated in this working set.
+        """
+        needed = self.resolve(parse_requirements(requirements))
+
+        for dist in needed:
+            self.add(dist)
+
+        return needed
+
+    def subscribe(self, callback, existing=True):
+        """Invoke `callback` for all distributions
+
+        If `existing=True` (default),
+        call on all existing ones, as well.
+        """
+        if callback in self.callbacks:
+            return
+        self.callbacks.append(callback)
+        if not existing:
+            return
+        for dist in self:
+            callback(dist)
+
+    def _added_new(self, dist):
+        for callback in self.callbacks:
+            callback(dist)
+
+    def __getstate__(self):
+        return (
+            self.entries[:], self.entry_keys.copy(), self.by_key.copy(),
+            self.callbacks[:]
+        )
+
+    def __setstate__(self, e_k_b_c):
+        entries, keys, by_key, callbacks = e_k_b_c
+        self.entries = entries[:]
+        self.entry_keys = keys.copy()
+        self.by_key = by_key.copy()
+        self.callbacks = callbacks[:]
+
+
+class _ReqExtras(dict):
+    """
+    Map each requirement to the extras that demanded it.
+    """
+
+    def markers_pass(self, req, extras=None):
+        """
+        Evaluate markers for req against each extra that
+        demanded it.
+
+        Return False if the req has a marker and fails
+        evaluation. Otherwise, return True.
+        """
+        extra_evals = (
+            req.marker.evaluate({'extra': extra})
+            for extra in self.get(req, ()) + (extras or (None,))
+        )
+        return not req.marker or any(extra_evals)
+
+
+class Environment(object):
+    """Searchable snapshot of distributions on a search path"""
+
+    def __init__(
+            self, search_path=None, platform=get_supported_platform(),
+            python=PY_MAJOR):
+        """Snapshot distributions available on a search path
+
+        Any distributions found on `search_path` are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.
+
+        `platform` is an optional string specifying the name of the platform
+        that platform-specific distributions must be compatible with.  If
+        unspecified, it defaults to the current platform.  `python` is an
+        optional string naming the desired version of Python (e.g. ``'3.3'``);
+        it defaults to the current version.
+
+        You may explicitly set `platform` (and/or `python`) to ``None`` if you
+        wish to map *all* distributions, not just those compatible with the
+        running platform or Python version.
+        """
+        self._distmap = {}
+        self.platform = platform
+        self.python = python
+        self.scan(search_path)
+
+    def can_add(self, dist):
+        """Is distribution `dist` acceptable for this environment?
+
+        The distribution must match the platform and python version
+        requirements specified when this environment was created, or False
+        is returned.
+        """
+        return (self.python is None or dist.py_version is None
+            or dist.py_version == self.python) \
+            and compatible_platforms(dist.platform, self.platform)
+
+    def remove(self, dist):
+        """Remove `dist` from the environment"""
+        self._distmap[dist.key].remove(dist)
+
+    def scan(self, search_path=None):
+        """Scan `search_path` for distributions usable in this environment
+
+        Any distributions found are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.  Only distributions conforming to
+        the platform/python version defined at initialization are added.
+        """
+        if search_path is None:
+            search_path = sys.path
+
+        for item in search_path:
+            for dist in find_distributions(item):
+                self.add(dist)
+
+    def __getitem__(self, project_name):
+        """Return a newest-to-oldest list of distributions for `project_name`
+
+        Uses case-insensitive `project_name` comparison, assuming all the
+        project's distributions use their project's name converted to all
+        lowercase as their key.
+
+        """
+        distribution_key = project_name.lower()
+        return self._distmap.get(distribution_key, [])
+
+    def add(self, dist):
+        """Add `dist` if we ``can_add()`` it and it has not already been added
+        """
+        if self.can_add(dist) and dist.has_version():
+            dists = self._distmap.setdefault(dist.key, [])
+            if dist not in dists:
+                dists.append(dist)
+                dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
+
+    def best_match(
+            self, req, working_set, installer=None, replace_conflicting=False):
+        """Find distribution best matching `req` and usable on `working_set`
+
+        This calls the ``find(req)`` method of the `working_set` to see if a
+        suitable distribution is already active.  (This may raise
+        ``VersionConflict`` if an unsuitable version of the project is already
+        active in the specified `working_set`.)  If a suitable distribution
+        isn't active, this method returns the newest distribution in the
+        environment that meets the ``Requirement`` in `req`.  If no suitable
+        distribution is found, and `installer` is supplied, then the result of
+        calling the environment's ``obtain(req, installer)`` method will be
+        returned.
+        """
+        try:
+            dist = working_set.find(req)
+        except VersionConflict:
+            if not replace_conflicting:
+                raise
+            dist = None
+        if dist is not None:
+            return dist
+        for dist in self[req.key]:
+            if dist in req:
+                return dist
+        # try to download/install
+        return self.obtain(req, installer)
+
+    def obtain(self, requirement, installer=None):
+        """Obtain a distribution matching `requirement` (e.g. via download)
+
+        Obtain a distro that matches requirement (e.g. via download).  In the
+        base ``Environment`` class, this routine just returns
+        ``installer(requirement)``, unless `installer` is None, in which case
+        None is returned instead.  This method is a hook that allows subclasses
+        to attempt other ways of obtaining a distribution before falling back
+        to the `installer` argument."""
+        if installer is not None:
+            return installer(requirement)
+
+    def __iter__(self):
+        """Yield the unique project names of the available distributions"""
+        for key in self._distmap.keys():
+            if self[key]:
+                yield key
+
+    def __iadd__(self, other):
+        """In-place addition of a distribution or environment"""
+        if isinstance(other, Distribution):
+            self.add(other)
+        elif isinstance(other, Environment):
+            for project in other:
+                for dist in other[project]:
+                    self.add(dist)
+        else:
+            raise TypeError("Can't add %r to environment" % (other,))
+        return self
+
+    def __add__(self, other):
+        """Add an environment or distribution to an environment"""
+        new = self.__class__([], platform=None, python=None)
+        for env in self, other:
+            new += env
+        return new
+
+
+# XXX backward compatibility
+AvailableDistributions = Environment
+
+
+class ExtractionError(RuntimeError):
+    """An error occurred extracting a resource
+
+    The following attributes are available from instances of this exception:
+
+    manager
+        The resource manager that raised this exception
+
+    cache_path
+        The base directory for resource extraction
+
+    original_error
+        The exception instance that caused extraction to fail
+    """
+
+
+class ResourceManager:
+    """Manage resource extraction and packages"""
+    extraction_path = None
+
+    def __init__(self):
+        self.cached_files = {}
+
+    def resource_exists(self, package_or_requirement, resource_name):
+        """Does the named resource exist?"""
+        return get_provider(package_or_requirement).has_resource(resource_name)
+
+    def resource_isdir(self, package_or_requirement, resource_name):
+        """Is the named resource an existing directory?"""
+        return get_provider(package_or_requirement).resource_isdir(
+            resource_name
+        )
+
+    def resource_filename(self, package_or_requirement, resource_name):
+        """Return a true filesystem path for specified resource"""
+        return get_provider(package_or_requirement).get_resource_filename(
+            self, resource_name
+        )
+
+    def resource_stream(self, package_or_requirement, resource_name):
+        """Return a readable file-like object for specified resource"""
+        return get_provider(package_or_requirement).get_resource_stream(
+            self, resource_name
+        )
+
+    def resource_string(self, package_or_requirement, resource_name):
+        """Return specified resource as a string"""
+        return get_provider(package_or_requirement).get_resource_string(
+            self, resource_name
+        )
+
+    def resource_listdir(self, package_or_requirement, resource_name):
+        """List the contents of the named resource directory"""
+        return get_provider(package_or_requirement).resource_listdir(
+            resource_name
+        )
+
+    def extraction_error(self):
+        """Give an error message for problems extracting file(s)"""
+
+        old_exc = sys.exc_info()[1]
+        cache_path = self.extraction_path or get_default_cache()
+
+        tmpl = textwrap.dedent("""
+            Can't extract file(s) to egg cache
+
+            The following error occurred while trying to extract file(s)
+            to the Python egg cache:
+
+              {old_exc}
+
+            The Python egg cache directory is currently set to:
+
+              {cache_path}
+
+            Perhaps your account does not have write access to this directory?
+            You can change the cache directory by setting the PYTHON_EGG_CACHE
+            environment variable to point to an accessible directory.
+            """).lstrip()
+        err = ExtractionError(tmpl.format(**locals()))
+        err.manager = self
+        err.cache_path = cache_path
+        err.original_error = old_exc
+        raise err
+
+    def get_cache_path(self, archive_name, names=()):
+        """Return absolute location in cache for `archive_name` and `names`
+
+        The parent directory of the resulting path will be created if it does
+        not already exist.  `archive_name` should be the base filename of the
+        enclosing egg (which may not be the name of the enclosing zipfile!),
+        including its ".egg" extension.  `names`, if provided, should be a
+        sequence of path name parts "under" the egg's extraction location.
+
+        This method should only be called by resource providers that need to
+        obtain an extraction location, and only for names they intend to
+        extract, as it tracks the generated names for possible cleanup later.
+        """
+        extract_path = self.extraction_path or get_default_cache()
+        target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
+        try:
+            _bypass_ensure_directory(target_path)
+        except:
+            self.extraction_error()
+
+        self._warn_unsafe_extraction_path(extract_path)
+
+        self.cached_files[target_path] = 1
+        return target_path
+
+    @staticmethod
+    def _warn_unsafe_extraction_path(path):
+        """
+        If the default extraction path is overridden and set to an insecure
+        location, such as /tmp, it opens up an opportunity for an attacker to
+        replace an extracted file with an unauthorized payload. Warn the user
+        if a known insecure location is used.
+
+        See Distribute #375 for more details.
+        """
+        if os.name == 'nt' and not path.startswith(os.environ['windir']):
+            # On Windows, permissions are generally restrictive by default
+            #  and temp directories are not writable by other users, so
+            #  bypass the warning.
+            return
+        mode = os.stat(path).st_mode
+        if mode & stat.S_IWOTH or mode & stat.S_IWGRP:
+            msg = (
+                "%s is writable by group/others and vulnerable to attack "
+                "when "
+                "used with get_resource_filename. Consider a more secure "
+                "location (set with .set_extraction_path or the "
+                "PYTHON_EGG_CACHE environment variable)." % path
+            )
+            warnings.warn(msg, UserWarning)
+
+    def postprocess(self, tempname, filename):
+        """Perform any platform-specific postprocessing of `tempname`
+
+        This is where Mac header rewrites should be done; other platforms don't
+        have anything special they should do.
+
+        Resource providers should call this method ONLY after successfully
+        extracting a compressed resource.  They must NOT call it on resources
+        that are already in the filesystem.
+
+        `tempname` is the current (temporary) name of the file, and `filename`
+        is the name it will be renamed to by the caller after this routine
+        returns.
+        """
+
+        if os.name == 'posix':
+            # Make the resource executable
+            mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777
+            os.chmod(tempname, mode)
+
+    def set_extraction_path(self, path):
+        """Set the base path where resources will be extracted to, if needed.
+
+        If you do not call this routine before any extractions take place, the
+        path defaults to the return value of ``get_default_cache()``.  (Which
+        is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
+        platform-specific fallbacks.  See that routine's documentation for more
+        details.)
+
+        Resources are extracted to subdirectories of this path based upon
+        information given by the ``IResourceProvider``.  You may set this to a
+        temporary directory, but then you must call ``cleanup_resources()`` to
+        delete the extracted files when done.  There is no guarantee that
+        ``cleanup_resources()`` will be able to remove all extracted files.
+
+        (Note: you may not change the extraction path for a given resource
+        manager once resources have been extracted, unless you first call
+        ``cleanup_resources()``.)
+        """
+        if self.cached_files:
+            raise ValueError(
+                "Can't change extraction path, files already extracted"
+            )
+
+        self.extraction_path = path
+
+    def cleanup_resources(self, force=False):
+        """
+        Delete all extracted resource files and directories, returning a list
+        of the file and directory names that could not be successfully removed.
+        This function does not have any concurrency protection, so it should
+        generally only be called when the extraction path is a temporary
+        directory exclusive to a single process.  This method is not
+        automatically called; you must call it explicitly or register it as an
+        ``atexit`` function if you wish to ensure cleanup of a temporary
+        directory used for extractions.
+        """
+        # XXX
+
+
+def get_default_cache():
+    """
+    Return the ``PYTHON_EGG_CACHE`` environment variable
+    or a platform-relevant user cache dir for an app
+    named "Python-Eggs".
+    """
+    return (
+        os.environ.get('PYTHON_EGG_CACHE')
+        or appdirs.user_cache_dir(appname='Python-Eggs')
+    )
+
+
+def safe_name(name):
+    """Convert an arbitrary string to a standard distribution name
+
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub('[^A-Za-z0-9.]+', '-', name)
+
+
+def safe_version(version):
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(packaging.version.Version(version))
+    except packaging.version.InvalidVersion:
+        version = version.replace(' ', '.')
+        return re.sub('[^A-Za-z0-9.]+', '-', version)
+
+
+def safe_extra(extra):
+    """Convert an arbitrary string to a standard 'extra' name
+
+    Any runs of non-alphanumeric characters are replaced with a single '_',
+    and the result is always lowercased.
+    """
+    return re.sub('[^A-Za-z0-9.-]+', '_', extra).lower()
+
+
+def to_filename(name):
+    """Convert a project or version name to its filename-escaped form
+
+    Any '-' characters are currently replaced with '_'.
+    """
+    return name.replace('-', '_')
+
+
+def invalid_marker(text):
+    """
+    Validate text as a PEP 508 environment marker; return an exception
+    if invalid or False otherwise.
+    """
+    try:
+        evaluate_marker(text)
+    except SyntaxError as e:
+        e.filename = None
+        e.lineno = None
+        return e
+    return False
+
+
+def evaluate_marker(text, extra=None):
+    """
+    Evaluate a PEP 508 environment marker.
+    Return a boolean indicating the marker result in this environment.
+    Raise SyntaxError if marker is invalid.
+
+    This implementation uses the 'pyparsing' module.
+    """
+    try:
+        marker = packaging.markers.Marker(text)
+        return marker.evaluate()
+    except packaging.markers.InvalidMarker as e:
+        raise SyntaxError(e)
+
+
+class NullProvider:
+    """Try to implement resources and metadata for arbitrary PEP 302 loaders"""
+
+    egg_name = None
+    egg_info = None
+    loader = None
+
+    def __init__(self, module):
+        self.loader = getattr(module, '__loader__', None)
+        self.module_path = os.path.dirname(getattr(module, '__file__', ''))
+
+    def get_resource_filename(self, manager, resource_name):
+        return self._fn(self.module_path, resource_name)
+
+    def get_resource_stream(self, manager, resource_name):
+        return io.BytesIO(self.get_resource_string(manager, resource_name))
+
+    def get_resource_string(self, manager, resource_name):
+        return self._get(self._fn(self.module_path, resource_name))
+
+    def has_resource(self, resource_name):
+        return self._has(self._fn(self.module_path, resource_name))
+
+    def has_metadata(self, name):
+        return self.egg_info and self._has(self._fn(self.egg_info, name))
+
+    def get_metadata(self, name):
+        if not self.egg_info:
+            return ""
+        value = self._get(self._fn(self.egg_info, name))
+        return value.decode('utf-8') if six.PY3 else value
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+    def resource_isdir(self, resource_name):
+        return self._isdir(self._fn(self.module_path, resource_name))
+
+    def metadata_isdir(self, name):
+        return self.egg_info and self._isdir(self._fn(self.egg_info, name))
+
+    def resource_listdir(self, resource_name):
+        return self._listdir(self._fn(self.module_path, resource_name))
+
+    def metadata_listdir(self, name):
+        if self.egg_info:
+            return self._listdir(self._fn(self.egg_info, name))
+        return []
+
+    def run_script(self, script_name, namespace):
+        script = 'scripts/' + script_name
+        if not self.has_metadata(script):
+            raise ResolutionError(
+                "Script {script!r} not found in metadata at {self.egg_info!r}"
+                .format(**locals()),
+            )
+        script_text = self.get_metadata(script).replace('\r\n', '\n')
+        script_text = script_text.replace('\r', '\n')
+        script_filename = self._fn(self.egg_info, script)
+        namespace['__file__'] = script_filename
+        if os.path.exists(script_filename):
+            source = open(script_filename).read()
+            code = compile(source, script_filename, 'exec')
+            exec(code, namespace, namespace)
+        else:
+            from linecache import cache
+            cache[script_filename] = (
+                len(script_text), 0, script_text.split('\n'), script_filename
+            )
+            script_code = compile(script_text, script_filename, 'exec')
+            exec(script_code, namespace, namespace)
+
+    def _has(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _isdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _listdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _fn(self, base, resource_name):
+        if resource_name:
+            return os.path.join(base, *resource_name.split('/'))
+        return base
+
+    def _get(self, path):
+        if hasattr(self.loader, 'get_data'):
+            return self.loader.get_data(path)
+        raise NotImplementedError(
+            "Can't perform this operation for loaders without 'get_data()'"
+        )
+
+
+register_loader_type(object, NullProvider)
+
+
+class EggProvider(NullProvider):
+    """Provider based on a virtual filesystem"""
+
+    def __init__(self, module):
+        NullProvider.__init__(self, module)
+        self._setup_prefix()
+
+    def _setup_prefix(self):
+        # we assume here that our metadata may be nested inside a "basket"
+        # of multiple eggs; that's why we use module_path instead of .archive
+        path = self.module_path
+        old = None
+        while path != old:
+            if _is_egg_path(path):
+                self.egg_name = os.path.basename(path)
+                self.egg_info = os.path.join(path, 'EGG-INFO')
+                self.egg_root = path
+                break
+            old = path
+            path, base = os.path.split(path)
+
+
+class DefaultProvider(EggProvider):
+    """Provides access to package resources in the filesystem"""
+
+    def _has(self, path):
+        return os.path.exists(path)
+
+    def _isdir(self, path):
+        return os.path.isdir(path)
+
+    def _listdir(self, path):
+        return os.listdir(path)
+
+    def get_resource_stream(self, manager, resource_name):
+        return open(self._fn(self.module_path, resource_name), 'rb')
+
+    def _get(self, path):
+        with open(path, 'rb') as stream:
+            return stream.read()
+
+    @classmethod
+    def _register(cls):
+        loader_cls = getattr(
+            importlib_machinery,
+            'SourceFileLoader',
+            type(None),
+        )
+        register_loader_type(loader_cls, cls)
+
+
+DefaultProvider._register()
+
+
+class EmptyProvider(NullProvider):
+    """Provider that returns nothing for all requests"""
+
+    _isdir = _has = lambda self, path: False
+    _get = lambda self, path: ''
+    _listdir = lambda self, path: []
+    module_path = None
+
+    def __init__(self):
+        pass
+
+
+empty_provider = EmptyProvider()
+
+
+class ZipManifests(dict):
+    """
+    zip manifest builder
+    """
+
+    @classmethod
+    def build(cls, path):
+        """
+        Build a dictionary similar to the zipimport directory
+        caches, except instead of tuples, store ZipInfo objects.
+
+        Use a platform-specific path separator (os.sep) for the path keys
+        for compatibility with pypy on Windows.
+        """
+        with zipfile.ZipFile(path) as zfile:
+            items = (
+                (
+                    name.replace('/', os.sep),
+                    zfile.getinfo(name),
+                )
+                for name in zfile.namelist()
+            )
+            return dict(items)
+
+    load = build
+
+
+class MemoizedZipManifests(ZipManifests):
+    """
+    Memoized zipfile manifests.
+    """
+    manifest_mod = collections.namedtuple('manifest_mod', 'manifest mtime')
+
+    def load(self, path):
+        """
+        Load a manifest at path or return a suitable manifest already loaded.
+        """
+        path = os.path.normpath(path)
+        mtime = os.stat(path).st_mtime
+
+        if path not in self or self[path].mtime != mtime:
+            manifest = self.build(path)
+            self[path] = self.manifest_mod(manifest, mtime)
+
+        return self[path].manifest
+
+
+class ZipProvider(EggProvider):
+    """Resource support for zips and eggs"""
+
+    eagers = None
+    _zip_manifests = MemoizedZipManifests()
+
+    def __init__(self, module):
+        EggProvider.__init__(self, module)
+        self.zip_pre = self.loader.archive + os.sep
+
+    def _zipinfo_name(self, fspath):
+        # Convert a virtual filename (full path to file) into a zipfile subpath
+        # usable with the zipimport directory cache for our target archive
+        if fspath.startswith(self.zip_pre):
+            return fspath[len(self.zip_pre):]
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.zip_pre)
+        )
+
+    def _parts(self, zip_path):
+        # Convert a zipfile subpath into an egg-relative path part list.
+        # pseudo-fs path
+        fspath = self.zip_pre + zip_path
+        if fspath.startswith(self.egg_root + os.sep):
+            return fspath[len(self.egg_root) + 1:].split(os.sep)
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.egg_root)
+        )
+
+    @property
+    def zipinfo(self):
+        return self._zip_manifests.load(self.loader.archive)
+
+    def get_resource_filename(self, manager, resource_name):
+        if not self.egg_name:
+            raise NotImplementedError(
+                "resource_filename() only supported for .egg, not .zip"
+            )
+        # no need to lock for extraction, since we use temp names
+        zip_path = self._resource_to_zip(resource_name)
+        eagers = self._get_eager_resources()
+        if '/'.join(self._parts(zip_path)) in eagers:
+            for name in eagers:
+                self._extract_resource(manager, self._eager_to_zip(name))
+        return self._extract_resource(manager, zip_path)
+
+    @staticmethod
+    def _get_date_and_size(zip_stat):
+        size = zip_stat.file_size
+        # ymdhms+wday, yday, dst
+        date_time = zip_stat.date_time + (0, 0, -1)
+        # 1980 offset already done
+        timestamp = time.mktime(date_time)
+        return timestamp, size
+
+    def _extract_resource(self, manager, zip_path):
+
+        if zip_path in self._index():
+            for name in self._index()[zip_path]:
+                last = self._extract_resource(
+                    manager, os.path.join(zip_path, name)
+                )
+            # return the extracted directory name
+            return os.path.dirname(last)
+
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+
+        if not WRITE_SUPPORT:
+            raise IOError('"os.rename" and "os.unlink" are not supported '
+                          'on this platform')
+        try:
+
+            real_path = manager.get_cache_path(
+                self.egg_name, self._parts(zip_path)
+            )
+
+            if self._is_current(real_path, zip_path):
+                return real_path
+
+            outf, tmpnam = _mkstemp(
+                ".$extract",
+                dir=os.path.dirname(real_path),
+            )
+            os.write(outf, self.loader.get_data(zip_path))
+            os.close(outf)
+            utime(tmpnam, (timestamp, timestamp))
+            manager.postprocess(tmpnam, real_path)
+
+            try:
+                rename(tmpnam, real_path)
+
+            except os.error:
+                if os.path.isfile(real_path):
+                    if self._is_current(real_path, zip_path):
+                        # the file became current since it was checked above,
+                        #  so proceed.
+                        return real_path
+                    # Windows, del old file and retry
+                    elif os.name == 'nt':
+                        unlink(real_path)
+                        rename(tmpnam, real_path)
+                        return real_path
+                raise
+
+        except os.error:
+            # report a user-friendly error
+            manager.extraction_error()
+
+        return real_path
+
+    def _is_current(self, file_path, zip_path):
+        """
+        Return True if the file_path is current for this zip_path
+        """
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+        if not os.path.isfile(file_path):
+            return False
+        stat = os.stat(file_path)
+        if stat.st_size != size or stat.st_mtime != timestamp:
+            return False
+        # check that the contents match
+        zip_contents = self.loader.get_data(zip_path)
+        with open(file_path, 'rb') as f:
+            file_contents = f.read()
+        return zip_contents == file_contents
+
+    def _get_eager_resources(self):
+        if self.eagers is None:
+            eagers = []
+            for name in ('native_libs.txt', 'eager_resources.txt'):
+                if self.has_metadata(name):
+                    eagers.extend(self.get_metadata_lines(name))
+            self.eagers = eagers
+        return self.eagers
+
+    def _index(self):
+        try:
+            return self._dirindex
+        except AttributeError:
+            ind = {}
+            for path in self.zipinfo:
+                parts = path.split(os.sep)
+                while parts:
+                    parent = os.sep.join(parts[:-1])
+                    if parent in ind:
+                        ind[parent].append(parts[-1])
+                        break
+                    else:
+                        ind[parent] = [parts.pop()]
+            self._dirindex = ind
+            return ind
+
+    def _has(self, fspath):
+        zip_path = self._zipinfo_name(fspath)
+        return zip_path in self.zipinfo or zip_path in self._index()
+
+    def _isdir(self, fspath):
+        return self._zipinfo_name(fspath) in self._index()
+
+    def _listdir(self, fspath):
+        return list(self._index().get(self._zipinfo_name(fspath), ()))
+
+    def _eager_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.egg_root, resource_name))
+
+    def _resource_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.module_path, resource_name))
+
+
+register_loader_type(zipimport.zipimporter, ZipProvider)
+
+
+class FileMetadata(EmptyProvider):
+    """Metadata handler for standalone PKG-INFO files
+
+    Usage::
+
+        metadata = FileMetadata("/path/to/PKG-INFO")
+
+    This provider rejects all data and metadata requests except for PKG-INFO,
+    which is treated as existing, and will be the contents of the file at
+    the provided location.
+    """
+
+    def __init__(self, path):
+        self.path = path
+
+    def has_metadata(self, name):
+        return name == 'PKG-INFO' and os.path.isfile(self.path)
+
+    def get_metadata(self, name):
+        if name != 'PKG-INFO':
+            raise KeyError("No metadata except PKG-INFO is available")
+
+        with io.open(self.path, encoding='utf-8', errors="replace") as f:
+            metadata = f.read()
+        self._warn_on_replacement(metadata)
+        return metadata
+
+    def _warn_on_replacement(self, metadata):
+        # Python 2.7 compat for: replacement_char = '�'
+        replacement_char = b'\xef\xbf\xbd'.decode('utf-8')
+        if replacement_char in metadata:
+            tmpl = "{self.path} could not be properly decoded in UTF-8"
+            msg = tmpl.format(**locals())
+            warnings.warn(msg)
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+
+class PathMetadata(DefaultProvider):
+    """Metadata provider for egg directories
+
+    Usage::
+
+        # Development eggs:
+
+        egg_info = "/path/to/PackageName.egg-info"
+        base_dir = os.path.dirname(egg_info)
+        metadata = PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        dist = Distribution(basedir, project_name=dist_name, metadata=metadata)
+
+        # Unpacked egg directories:
+
+        egg_path = "/path/to/PackageName-ver-pyver-etc.egg"
+        metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO'))
+        dist = Distribution.from_filename(egg_path, metadata=metadata)
+    """
+
+    def __init__(self, path, egg_info):
+        self.module_path = path
+        self.egg_info = egg_info
+
+
+class EggMetadata(ZipProvider):
+    """Metadata provider for .egg files"""
+
+    def __init__(self, importer):
+        """Create a metadata provider from a zipimporter"""
+
+        self.zip_pre = importer.archive + os.sep
+        self.loader = importer
+        if importer.prefix:
+            self.module_path = os.path.join(importer.archive, importer.prefix)
+        else:
+            self.module_path = importer.archive
+        self._setup_prefix()
+
+
+_declare_state('dict', _distribution_finders={})
+
+
+def register_finder(importer_type, distribution_finder):
+    """Register `distribution_finder` to find distributions in sys.path items
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `distribution_finder` is a callable that, passed a path
+    item and the importer instance, yields ``Distribution`` instances found on
+    that path item.  See ``pkg_resources.find_on_path`` for an example."""
+    _distribution_finders[importer_type] = distribution_finder
+
+
+def find_distributions(path_item, only=False):
+    """Yield distributions accessible via `path_item`"""
+    importer = get_importer(path_item)
+    finder = _find_adapter(_distribution_finders, importer)
+    return finder(importer, path_item, only)
+
+
+def find_eggs_in_zip(importer, path_item, only=False):
+    """
+    Find eggs in zip files; possibly multiple nested eggs.
+    """
+    if importer.archive.endswith('.whl'):
+        # wheels are not supported with this finder
+        # they don't have PKG-INFO metadata, and won't ever contain eggs
+        return
+    metadata = EggMetadata(importer)
+    if metadata.has_metadata('PKG-INFO'):
+        yield Distribution.from_filename(path_item, metadata=metadata)
+    if only:
+        # don't yield nested distros
+        return
+    for subitem in metadata.resource_listdir('/'):
+        if _is_egg_path(subitem):
+            subpath = os.path.join(path_item, subitem)
+            dists = find_eggs_in_zip(zipimport.zipimporter(subpath), subpath)
+            for dist in dists:
+                yield dist
+        elif subitem.lower().endswith('.dist-info'):
+            subpath = os.path.join(path_item, subitem)
+            submeta = EggMetadata(zipimport.zipimporter(subpath))
+            submeta.egg_info = subpath
+            yield Distribution.from_location(path_item, subitem, submeta)
+
+
+register_finder(zipimport.zipimporter, find_eggs_in_zip)
+
+
+def find_nothing(importer, path_item, only=False):
+    return ()
+
+
+register_finder(object, find_nothing)
+
+
+def _by_version_descending(names):
+    """
+    Given a list of filenames, return them in descending order
+    by version number.
+
+    >>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg'
+    >>> _by_version_descending(names)
+    ['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg']
+    """
+    def _by_version(name):
+        """
+        Parse each component of the filename
+        """
+        name, ext = os.path.splitext(name)
+        parts = itertools.chain(name.split('-'), [ext])
+        return [packaging.version.parse(part) for part in parts]
+
+    return sorted(names, key=_by_version, reverse=True)
+
+
+def find_on_path(importer, path_item, only=False):
+    """Yield distributions accessible on a sys.path directory"""
+    path_item = _normalize_cached(path_item)
+
+    if _is_unpacked_egg(path_item):
+        yield Distribution.from_filename(
+            path_item, metadata=PathMetadata(
+                path_item, os.path.join(path_item, 'EGG-INFO')
+            )
+        )
+        return
+
+    entries = safe_listdir(path_item)
+
+    # for performance, before sorting by version,
+    # screen entries for only those that will yield
+    # distributions
+    filtered = (
+        entry
+        for entry in entries
+        if dist_factory(path_item, entry, only)
+    )
+
+    # scan for .egg and .egg-info in directory
+    path_item_entries = _by_version_descending(filtered)
+    for entry in path_item_entries:
+        fullpath = os.path.join(path_item, entry)
+        factory = dist_factory(path_item, entry, only)
+        for dist in factory(fullpath):
+            yield dist
+
+
+def dist_factory(path_item, entry, only):
+    """
+    Return a dist_factory for a path_item and entry
+    """
+    lower = entry.lower()
+    is_meta = any(map(lower.endswith, ('.egg-info', '.dist-info')))
+    return (
+        distributions_from_metadata
+        if is_meta else
+        find_distributions
+        if not only and _is_egg_path(entry) else
+        resolve_egg_link
+        if not only and lower.endswith('.egg-link') else
+        NoDists()
+    )
+
+
+class NoDists:
+    """
+    >>> bool(NoDists())
+    False
+
+    >>> list(NoDists()('anything'))
+    []
+    """
+    def __bool__(self):
+        return False
+    if six.PY2:
+        __nonzero__ = __bool__
+
+    def __call__(self, fullpath):
+        return iter(())
+
+
+def safe_listdir(path):
+    """
+    Attempt to list contents of path, but suppress some exceptions.
+    """
+    try:
+        return os.listdir(path)
+    except (PermissionError, NotADirectoryError):
+        pass
+    except OSError as e:
+        # Ignore the directory if does not exist, not a directory or
+        # permission denied
+        ignorable = (
+            e.errno in (errno.ENOTDIR, errno.EACCES, errno.ENOENT)
+            # Python 2 on Windows needs to be handled this way :(
+            or getattr(e, "winerror", None) == 267
+        )
+        if not ignorable:
+            raise
+    return ()
+
+
+def distributions_from_metadata(path):
+    root = os.path.dirname(path)
+    if os.path.isdir(path):
+        if len(os.listdir(path)) == 0:
+            # empty metadata dir; skip
+            return
+        metadata = PathMetadata(root, path)
+    else:
+        metadata = FileMetadata(path)
+    entry = os.path.basename(path)
+    yield Distribution.from_location(
+        root, entry, metadata, precedence=DEVELOP_DIST,
+    )
+
+
+def non_empty_lines(path):
+    """
+    Yield non-empty lines from file at path
+    """
+    with open(path) as f:
+        for line in f:
+            line = line.strip()
+            if line:
+                yield line
+
+
+def resolve_egg_link(path):
+    """
+    Given a path to an .egg-link, resolve distributions
+    present in the referenced path.
+    """
+    referenced_paths = non_empty_lines(path)
+    resolved_paths = (
+        os.path.join(os.path.dirname(path), ref)
+        for ref in referenced_paths
+    )
+    dist_groups = map(find_distributions, resolved_paths)
+    return next(dist_groups, ())
+
+
+register_finder(pkgutil.ImpImporter, find_on_path)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_finder(importlib_machinery.FileFinder, find_on_path)
+
+_declare_state('dict', _namespace_handlers={})
+_declare_state('dict', _namespace_packages={})
+
+
+def register_namespace_handler(importer_type, namespace_handler):
+    """Register `namespace_handler` to declare namespace packages
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `namespace_handler` is a callable like this::
+
+        def namespace_handler(importer, path_entry, moduleName, module):
+            # return a path_entry to use for child packages
+
+    Namespace handlers are only called if the importer object has already
+    agreed that it can handle the relevant path item, and they should only
+    return a subpath if the module __path__ does not already contain an
+    equivalent subpath.  For an example namespace handler, see
+    ``pkg_resources.file_ns_handler``.
+    """
+    _namespace_handlers[importer_type] = namespace_handler
+
+
+def _handle_ns(packageName, path_item):
+    """Ensure that named package includes a subpath of path_item (if needed)"""
+
+    importer = get_importer(path_item)
+    if importer is None:
+        return None
+    loader = importer.find_module(packageName)
+    if loader is None:
+        return None
+    module = sys.modules.get(packageName)
+    if module is None:
+        module = sys.modules[packageName] = types.ModuleType(packageName)
+        module.__path__ = []
+        _set_parent_ns(packageName)
+    elif not hasattr(module, '__path__'):
+        raise TypeError("Not a package:", packageName)
+    handler = _find_adapter(_namespace_handlers, importer)
+    subpath = handler(importer, path_item, packageName, module)
+    if subpath is not None:
+        path = module.__path__
+        path.append(subpath)
+        loader.load_module(packageName)
+        _rebuild_mod_path(path, packageName, module)
+    return subpath
+
+
+def _rebuild_mod_path(orig_path, package_name, module):
+    """
+    Rebuild module.__path__ ensuring that all entries are ordered
+    corresponding to their sys.path order
+    """
+    sys_path = [_normalize_cached(p) for p in sys.path]
+
+    def safe_sys_path_index(entry):
+        """
+        Workaround for #520 and #513.
+        """
+        try:
+            return sys_path.index(entry)
+        except ValueError:
+            return float('inf')
+
+    def position_in_sys_path(path):
+        """
+        Return the ordinal of the path based on its position in sys.path
+        """
+        path_parts = path.split(os.sep)
+        module_parts = package_name.count('.') + 1
+        parts = path_parts[:-module_parts]
+        return safe_sys_path_index(_normalize_cached(os.sep.join(parts)))
+
+    if not isinstance(orig_path, list):
+        # Is this behavior useful when module.__path__ is not a list?
+        return
+
+    orig_path.sort(key=position_in_sys_path)
+    module.__path__[:] = [_normalize_cached(p) for p in orig_path]
+
+
+def declare_namespace(packageName):
+    """Declare that package 'packageName' is a namespace package"""
+
+    _imp.acquire_lock()
+    try:
+        if packageName in _namespace_packages:
+            return
+
+        path, parent = sys.path, None
+        if '.' in packageName:
+            parent = '.'.join(packageName.split('.')[:-1])
+            declare_namespace(parent)
+            if parent not in _namespace_packages:
+                __import__(parent)
+            try:
+                path = sys.modules[parent].__path__
+            except AttributeError:
+                raise TypeError("Not a package:", parent)
+
+        # Track what packages are namespaces, so when new path items are added,
+        # they can be updated
+        _namespace_packages.setdefault(parent, []).append(packageName)
+        _namespace_packages.setdefault(packageName, [])
+
+        for path_item in path:
+            # Ensure all the parent's path items are reflected in the child,
+            # if they apply
+            _handle_ns(packageName, path_item)
+
+    finally:
+        _imp.release_lock()
+
+
+def fixup_namespace_packages(path_item, parent=None):
+    """Ensure that previously-declared namespace packages include path_item"""
+    _imp.acquire_lock()
+    try:
+        for package in _namespace_packages.get(parent, ()):
+            subpath = _handle_ns(package, path_item)
+            if subpath:
+                fixup_namespace_packages(subpath, package)
+    finally:
+        _imp.release_lock()
+
+
+def file_ns_handler(importer, path_item, packageName, module):
+    """Compute an ns-package subpath for a filesystem or zipfile importer"""
+
+    subpath = os.path.join(path_item, packageName.split('.')[-1])
+    normalized = _normalize_cached(subpath)
+    for item in module.__path__:
+        if _normalize_cached(item) == normalized:
+            break
+    else:
+        # Only return the path if it's not already there
+        return subpath
+
+
+register_namespace_handler(pkgutil.ImpImporter, file_ns_handler)
+register_namespace_handler(zipimport.zipimporter, file_ns_handler)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_namespace_handler(importlib_machinery.FileFinder, file_ns_handler)
+
+
+def null_ns_handler(importer, path_item, packageName, module):
+    return None
+
+
+register_namespace_handler(object, null_ns_handler)
+
+
+def normalize_path(filename):
+    """Normalize a file/dir name for comparison purposes"""
+    return os.path.normcase(os.path.realpath(filename))
+
+
+def _normalize_cached(filename, _cache={}):
+    try:
+        return _cache[filename]
+    except KeyError:
+        _cache[filename] = result = normalize_path(filename)
+        return result
+
+
+def _is_egg_path(path):
+    """
+    Determine if given path appears to be an egg.
+    """
+    return path.lower().endswith('.egg')
+
+
+def _is_unpacked_egg(path):
+    """
+    Determine if given path appears to be an unpacked egg.
+    """
+    return (
+        _is_egg_path(path) and
+        os.path.isfile(os.path.join(path, 'EGG-INFO', 'PKG-INFO'))
+    )
+
+
+def _set_parent_ns(packageName):
+    parts = packageName.split('.')
+    name = parts.pop()
+    if parts:
+        parent = '.'.join(parts)
+        setattr(sys.modules[parent], name, sys.modules[packageName])
+
+
+def yield_lines(strs):
+    """Yield non-empty/non-comment lines of a string or sequence"""
+    if isinstance(strs, six.string_types):
+        for s in strs.splitlines():
+            s = s.strip()
+            # skip blank lines/comments
+            if s and not s.startswith('#'):
+                yield s
+    else:
+        for ss in strs:
+            for s in yield_lines(ss):
+                yield s
+
+
+MODULE = re.compile(r"\w+(\.\w+)*$").match
+EGG_NAME = re.compile(
+    r"""
+    (?P<name>[^-]+) (
+        -(?P<ver>[^-]+) (
+            -py(?P<pyver>[^-]+) (
+                -(?P<plat>.+)
+            )?
+        )?
+    )?
+    """,
+    re.VERBOSE | re.IGNORECASE,
+).match
+
+
+class EntryPoint(object):
+    """Object representing an advertised importable object"""
+
+    def __init__(self, name, module_name, attrs=(), extras=(), dist=None):
+        if not MODULE(module_name):
+            raise ValueError("Invalid module name", module_name)
+        self.name = name
+        self.module_name = module_name
+        self.attrs = tuple(attrs)
+        self.extras = tuple(extras)
+        self.dist = dist
+
+    def __str__(self):
+        s = "%s = %s" % (self.name, self.module_name)
+        if self.attrs:
+            s += ':' + '.'.join(self.attrs)
+        if self.extras:
+            s += ' [%s]' % ','.join(self.extras)
+        return s
+
+    def __repr__(self):
+        return "EntryPoint.parse(%r)" % str(self)
+
+    def load(self, require=True, *args, **kwargs):
+        """
+        Require packages for this EntryPoint, then resolve it.
+        """
+        if not require or args or kwargs:
+            warnings.warn(
+                "Parameters to load are deprecated.  Call .resolve and "
+                ".require separately.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        if require:
+            self.require(*args, **kwargs)
+        return self.resolve()
+
+    def resolve(self):
+        """
+        Resolve the entry point from its module and attrs.
+        """
+        module = __import__(self.module_name, fromlist=['__name__'], level=0)
+        try:
+            return functools.reduce(getattr, self.attrs, module)
+        except AttributeError as exc:
+            raise ImportError(str(exc))
+
+    def require(self, env=None, installer=None):
+        if self.extras and not self.dist:
+            raise UnknownExtra("Can't require() without a distribution", self)
+
+        # Get the requirements for this entry point with all its extras and
+        # then resolve them. We have to pass `extras` along when resolving so
+        # that the working set knows what extras we want. Otherwise, for
+        # dist-info distributions, the working set will assume that the
+        # requirements for that extra are purely optional and skip over them.
+        reqs = self.dist.requires(self.extras)
+        items = working_set.resolve(reqs, env, installer, extras=self.extras)
+        list(map(working_set.add, items))
+
+    pattern = re.compile(
+        r'\s*'
+        r'(?P<name>.+?)\s*'
+        r'=\s*'
+        r'(?P<module>[\w.]+)\s*'
+        r'(:\s*(?P<attr>[\w.]+))?\s*'
+        r'(?P<extras>\[.*\])?\s*$'
+    )
+
+    @classmethod
+    def parse(cls, src, dist=None):
+        """Parse a single entry point from string `src`
+
+        Entry point syntax follows the form::
+
+            name = some.module:some.attr [extra1, extra2]
+
+        The entry name and module name are required, but the ``:attrs`` and
+        ``[extras]`` parts are optional
+        """
+        m = cls.pattern.match(src)
+        if not m:
+            msg = "EntryPoint must be in 'name=module:attrs [extras]' format"
+            raise ValueError(msg, src)
+        res = m.groupdict()
+        extras = cls._parse_extras(res['extras'])
+        attrs = res['attr'].split('.') if res['attr'] else ()
+        return cls(res['name'], res['module'], attrs, extras, dist)
+
+    @classmethod
+    def _parse_extras(cls, extras_spec):
+        if not extras_spec:
+            return ()
+        req = Requirement.parse('x' + extras_spec)
+        if req.specs:
+            raise ValueError()
+        return req.extras
+
+    @classmethod
+    def parse_group(cls, group, lines, dist=None):
+        """Parse an entry point group"""
+        if not MODULE(group):
+            raise ValueError("Invalid group name", group)
+        this = {}
+        for line in yield_lines(lines):
+            ep = cls.parse(line, dist)
+            if ep.name in this:
+                raise ValueError("Duplicate entry point", group, ep.name)
+            this[ep.name] = ep
+        return this
+
+    @classmethod
+    def parse_map(cls, data, dist=None):
+        """Parse a map of entry point groups"""
+        if isinstance(data, dict):
+            data = data.items()
+        else:
+            data = split_sections(data)
+        maps = {}
+        for group, lines in data:
+            if group is None:
+                if not lines:
+                    continue
+                raise ValueError("Entry points must be listed in groups")
+            group = group.strip()
+            if group in maps:
+                raise ValueError("Duplicate group name", group)
+            maps[group] = cls.parse_group(group, lines, dist)
+        return maps
+
+
+def _remove_md5_fragment(location):
+    if not location:
+        return ''
+    parsed = urllib.parse.urlparse(location)
+    if parsed[-1].startswith('md5='):
+        return urllib.parse.urlunparse(parsed[:-1] + ('',))
+    return location
+
+
+def _version_from_file(lines):
+    """
+    Given an iterable of lines from a Metadata file, return
+    the value of the Version field, if present, or None otherwise.
+    """
+    is_version_line = lambda line: line.lower().startswith('version:')
+    version_lines = filter(is_version_line, lines)
+    line = next(iter(version_lines), '')
+    _, _, value = line.partition(':')
+    return safe_version(value.strip()) or None
+
+
+class Distribution(object):
+    """Wrap an actual or potential sys.path entry w/metadata"""
+    PKG_INFO = 'PKG-INFO'
+
+    def __init__(
+            self, location=None, metadata=None, project_name=None,
+            version=None, py_version=PY_MAJOR, platform=None,
+            precedence=EGG_DIST):
+        self.project_name = safe_name(project_name or 'Unknown')
+        if version is not None:
+            self._version = safe_version(version)
+        self.py_version = py_version
+        self.platform = platform
+        self.location = location
+        self.precedence = precedence
+        self._provider = metadata or empty_provider
+
+    @classmethod
+    def from_location(cls, location, basename, metadata=None, **kw):
+        project_name, version, py_version, platform = [None] * 4
+        basename, ext = os.path.splitext(basename)
+        if ext.lower() in _distributionImpl:
+            cls = _distributionImpl[ext.lower()]
+
+            match = EGG_NAME(basename)
+            if match:
+                project_name, version, py_version, platform = match.group(
+                    'name', 'ver', 'pyver', 'plat'
+                )
+        return cls(
+            location, metadata, project_name=project_name, version=version,
+            py_version=py_version, platform=platform, **kw
+        )._reload_version()
+
+    def _reload_version(self):
+        return self
+
+    @property
+    def hashcmp(self):
+        return (
+            self.parsed_version,
+            self.precedence,
+            self.key,
+            _remove_md5_fragment(self.location),
+            self.py_version or '',
+            self.platform or '',
+        )
+
+    def __hash__(self):
+        return hash(self.hashcmp)
+
+    def __lt__(self, other):
+        return self.hashcmp < other.hashcmp
+
+    def __le__(self, other):
+        return self.hashcmp <= other.hashcmp
+
+    def __gt__(self, other):
+        return self.hashcmp > other.hashcmp
+
+    def __ge__(self, other):
+        return self.hashcmp >= other.hashcmp
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            # It's not a Distribution, so they are not equal
+            return False
+        return self.hashcmp == other.hashcmp
+
+    def __ne__(self, other):
+        return not self == other
+
+    # These properties have to be lazy so that we don't have to load any
+    # metadata until/unless it's actually needed.  (i.e., some distributions
+    # may not know their name or version without loading PKG-INFO)
+
+    @property
+    def key(self):
+        try:
+            return self._key
+        except AttributeError:
+            self._key = key = self.project_name.lower()
+            return key
+
+    @property
+    def parsed_version(self):
+        if not hasattr(self, "_parsed_version"):
+            self._parsed_version = parse_version(self.version)
+
+        return self._parsed_version
+
+    def _warn_legacy_version(self):
+        LV = packaging.version.LegacyVersion
+        is_legacy = isinstance(self._parsed_version, LV)
+        if not is_legacy:
+            return
+
+        # While an empty version is technically a legacy version and
+        # is not a valid PEP 440 version, it's also unlikely to
+        # actually come from someone and instead it is more likely that
+        # it comes from setuptools attempting to parse a filename and
+        # including it in the list. So for that we'll gate this warning
+        # on if the version is anything at all or not.
+        if not self.version:
+            return
+
+        tmpl = textwrap.dedent("""
+            '{project_name} ({version})' is being parsed as a legacy,
+            non PEP 440,
+            version. You may find odd behavior and sort order.
+            In particular it will be sorted as less than 0.0. It
+            is recommended to migrate to PEP 440 compatible
+            versions.
+            """).strip().replace('\n', ' ')
+
+        warnings.warn(tmpl.format(**vars(self)), PEP440Warning)
+
+    @property
+    def version(self):
+        try:
+            return self._version
+        except AttributeError:
+            version = _version_from_file(self._get_metadata(self.PKG_INFO))
+            if version is None:
+                tmpl = "Missing 'Version:' header and/or %s file"
+                raise ValueError(tmpl % self.PKG_INFO, self)
+            return version
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            dm = self.__dep_map = {None: []}
+            for name in 'requires.txt', 'depends.txt':
+                for extra, reqs in split_sections(self._get_metadata(name)):
+                    if extra:
+                        if ':' in extra:
+                            extra, marker = extra.split(':', 1)
+                            if invalid_marker(marker):
+                                # XXX warn
+                                reqs = []
+                            elif not evaluate_marker(marker):
+                                reqs = []
+                        extra = safe_extra(extra) or None
+                    dm.setdefault(extra, []).extend(parse_requirements(reqs))
+            return dm
+
+    def requires(self, extras=()):
+        """List of Requirements needed for this distro if `extras` are used"""
+        dm = self._dep_map
+        deps = []
+        deps.extend(dm.get(None, ()))
+        for ext in extras:
+            try:
+                deps.extend(dm[safe_extra(ext)])
+            except KeyError:
+                raise UnknownExtra(
+                    "%s has no such extra feature %r" % (self, ext)
+                )
+        return deps
+
+    def _get_metadata(self, name):
+        if self.has_metadata(name):
+            for line in self.get_metadata_lines(name):
+                yield line
+
+    def activate(self, path=None, replace=False):
+        """Ensure distribution is importable on `path` (default=sys.path)"""
+        if path is None:
+            path = sys.path
+        self.insert_on(path, replace=replace)
+        if path is sys.path:
+            fixup_namespace_packages(self.location)
+            for pkg in self._get_metadata('namespace_packages.txt'):
+                if pkg in sys.modules:
+                    declare_namespace(pkg)
+
+    def egg_name(self):
+        """Return what this distribution's standard .egg filename should be"""
+        filename = "%s-%s-py%s" % (
+            to_filename(self.project_name), to_filename(self.version),
+            self.py_version or PY_MAJOR
+        )
+
+        if self.platform:
+            filename += '-' + self.platform
+        return filename
+
+    def __repr__(self):
+        if self.location:
+            return "%s (%s)" % (self, self.location)
+        else:
+            return str(self)
+
+    def __str__(self):
+        try:
+            version = getattr(self, 'version', None)
+        except ValueError:
+            version = None
+        version = version or "[unknown version]"
+        return "%s %s" % (self.project_name, version)
+
+    def __getattr__(self, attr):
+        """Delegate all unrecognized public attributes to .metadata provider"""
+        if attr.startswith('_'):
+            raise AttributeError(attr)
+        return getattr(self._provider, attr)
+
+    @classmethod
+    def from_filename(cls, filename, metadata=None, **kw):
+        return cls.from_location(
+            _normalize_cached(filename), os.path.basename(filename), metadata,
+            **kw
+        )
+
+    def as_requirement(self):
+        """Return a ``Requirement`` that matches this distribution exactly"""
+        if isinstance(self.parsed_version, packaging.version.Version):
+            spec = "%s==%s" % (self.project_name, self.parsed_version)
+        else:
+            spec = "%s===%s" % (self.project_name, self.parsed_version)
+
+        return Requirement.parse(spec)
+
+    def load_entry_point(self, group, name):
+        """Return the `name` entry point of `group` or raise ImportError"""
+        ep = self.get_entry_info(group, name)
+        if ep is None:
+            raise ImportError("Entry point %r not found" % ((group, name),))
+        return ep.load()
+
+    def get_entry_map(self, group=None):
+        """Return the entry point map for `group`, or the full entry map"""
+        try:
+            ep_map = self._ep_map
+        except AttributeError:
+            ep_map = self._ep_map = EntryPoint.parse_map(
+                self._get_metadata('entry_points.txt'), self
+            )
+        if group is not None:
+            return ep_map.get(group, {})
+        return ep_map
+
+    def get_entry_info(self, group, name):
+        """Return the EntryPoint object for `group`+`name`, or ``None``"""
+        return self.get_entry_map(group).get(name)
+
+    def insert_on(self, path, loc=None, replace=False):
+        """Ensure self.location is on path
+
+        If replace=False (default):
+            - If location is already in path anywhere, do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent.
+              - Else: add to the end of path.
+        If replace=True:
+            - If location is already on path anywhere (not eggs)
+              or higher priority than its parent (eggs)
+              do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent,
+                removing any lower-priority entries.
+              - Else: add it to the front of path.
+        """
+
+        loc = loc or self.location
+        if not loc:
+            return
+
+        nloc = _normalize_cached(loc)
+        bdir = os.path.dirname(nloc)
+        npath = [(p and _normalize_cached(p) or p) for p in path]
+
+        for p, item in enumerate(npath):
+            if item == nloc:
+                if replace:
+                    break
+                else:
+                    # don't modify path (even removing duplicates) if
+                    # found and not replace
+                    return
+            elif item == bdir and self.precedence == EGG_DIST:
+                # if it's an .egg, give it precedence over its directory
+                # UNLESS it's already been added to sys.path and replace=False
+                if (not replace) and nloc in npath[p:]:
+                    return
+                if path is sys.path:
+                    self.check_version_conflict()
+                path.insert(p, loc)
+                npath.insert(p, nloc)
+                break
+        else:
+            if path is sys.path:
+                self.check_version_conflict()
+            if replace:
+                path.insert(0, loc)
+            else:
+                path.append(loc)
+            return
+
+        # p is the spot where we found or inserted loc; now remove duplicates
+        while True:
+            try:
+                np = npath.index(nloc, p + 1)
+            except ValueError:
+                break
+            else:
+                del npath[np], path[np]
+                # ha!
+                p = np
+
+        return
+
+    def check_version_conflict(self):
+        if self.key == 'setuptools':
+            # ignore the inevitable setuptools self-conflicts  :(
+            return
+
+        nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt'))
+        loc = normalize_path(self.location)
+        for modname in self._get_metadata('top_level.txt'):
+            if (modname not in sys.modules or modname in nsp
+                    or modname in _namespace_packages):
+                continue
+            if modname in ('pkg_resources', 'setuptools', 'site'):
+                continue
+            fn = getattr(sys.modules[modname], '__file__', None)
+            if fn and (normalize_path(fn).startswith(loc) or
+                       fn.startswith(self.location)):
+                continue
+            issue_warning(
+                "Module %s was already imported from %s, but %s is being added"
+                " to sys.path" % (modname, fn, self.location),
+            )
+
+    def has_version(self):
+        try:
+            self.version
+        except ValueError:
+            issue_warning("Unbuilt egg for " + repr(self))
+            return False
+        return True
+
+    def clone(self, **kw):
+        """Copy this distribution, substituting in any changed keyword args"""
+        names = 'project_name version py_version platform location precedence'
+        for attr in names.split():
+            kw.setdefault(attr, getattr(self, attr, None))
+        kw.setdefault('metadata', self._provider)
+        return self.__class__(**kw)
+
+    @property
+    def extras(self):
+        return [dep for dep in self._dep_map if dep]
+
+
+class EggInfoDistribution(Distribution):
+    def _reload_version(self):
+        """
+        Packages installed by distutils (e.g. numpy or scipy),
+        which uses an old safe_version, and so
+        their version numbers can get mangled when
+        converted to filenames (e.g., 1.11.0.dev0+2329eae to
+        1.11.0.dev0_2329eae). These distributions will not be
+        parsed properly
+        downstream by Distribution and safe_version, so
+        take an extra step and try to get the version number from
+        the metadata file itself instead of the filename.
+        """
+        md_version = _version_from_file(self._get_metadata(self.PKG_INFO))
+        if md_version:
+            self._version = md_version
+        return self
+
+
+class DistInfoDistribution(Distribution):
+    """
+    Wrap an actual or potential sys.path entry
+    w/metadata, .dist-info style.
+    """
+    PKG_INFO = 'METADATA'
+    EQEQ = re.compile(r"([\(,])\s*(\d.*?)\s*([,\)])")
+
+    @property
+    def _parsed_pkg_info(self):
+        """Parse and cache metadata"""
+        try:
+            return self._pkg_info
+        except AttributeError:
+            metadata = self.get_metadata(self.PKG_INFO)
+            self._pkg_info = email.parser.Parser().parsestr(metadata)
+            return self._pkg_info
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            self.__dep_map = self._compute_dependencies()
+            return self.__dep_map
+
+    def _compute_dependencies(self):
+        """Recompute this distribution's dependencies."""
+        dm = self.__dep_map = {None: []}
+
+        reqs = []
+        # Including any condition expressions
+        for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
+            reqs.extend(parse_requirements(req))
+
+        def reqs_for_extra(extra):
+            for req in reqs:
+                if not req.marker or req.marker.evaluate({'extra': extra}):
+                    yield req
+
+        common = frozenset(reqs_for_extra(None))
+        dm[None].extend(common)
+
+        for extra in self._parsed_pkg_info.get_all('Provides-Extra') or []:
+            s_extra = safe_extra(extra.strip())
+            dm[s_extra] = list(frozenset(reqs_for_extra(extra)) - common)
+
+        return dm
+
+
+_distributionImpl = {
+    '.egg': Distribution,
+    '.egg-info': EggInfoDistribution,
+    '.dist-info': DistInfoDistribution,
+}
+
+
+def issue_warning(*args, **kw):
+    level = 1
+    g = globals()
+    try:
+        # find the first stack frame that is *not* code in
+        # the pkg_resources module, to use for the warning
+        while sys._getframe(level).f_globals is g:
+            level += 1
+    except ValueError:
+        pass
+    warnings.warn(stacklevel=level + 1, *args, **kw)
+
+
+class RequirementParseError(ValueError):
+    def __str__(self):
+        return ' '.join(self.args)
+
+
+def parse_requirements(strs):
+    """Yield ``Requirement`` objects for each specification in `strs`
+
+    `strs` must be a string, or a (possibly-nested) iterable thereof.
+    """
+    # create a steppable iterator, so we can handle \-continuations
+    lines = iter(yield_lines(strs))
+
+    for line in lines:
+        # Drop comments -- a hash without a space may be in a URL.
+        if ' #' in line:
+            line = line[:line.find(' #')]
+        # If there is a line continuation, drop it, and append the next line.
+        if line.endswith('\\'):
+            line = line[:-2].strip()
+            line += next(lines)
+        yield Requirement(line)
+
+
+class Requirement(packaging.requirements.Requirement):
+    def __init__(self, requirement_string):
+        """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!"""
+        try:
+            super(Requirement, self).__init__(requirement_string)
+        except packaging.requirements.InvalidRequirement as e:
+            raise RequirementParseError(str(e))
+        self.unsafe_name = self.name
+        project_name = safe_name(self.name)
+        self.project_name, self.key = project_name, project_name.lower()
+        self.specs = [
+            (spec.operator, spec.version) for spec in self.specifier]
+        self.extras = tuple(map(safe_extra, self.extras))
+        self.hashCmp = (
+            self.key,
+            self.specifier,
+            frozenset(self.extras),
+            str(self.marker) if self.marker else None,
+        )
+        self.__hash = hash(self.hashCmp)
+
+    def __eq__(self, other):
+        return (
+            isinstance(other, Requirement) and
+            self.hashCmp == other.hashCmp
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __contains__(self, item):
+        if isinstance(item, Distribution):
+            if item.key != self.key:
+                return False
+
+            item = item.version
+
+        # Allow prereleases always in order to match the previous behavior of
+        # this method. In the future this should be smarter and follow PEP 440
+        # more accurately.
+        return self.specifier.contains(item, prereleases=True)
+
+    def __hash__(self):
+        return self.__hash
+
+    def __repr__(self):
+        return "Requirement.parse(%r)" % str(self)
+
+    @staticmethod
+    def parse(s):
+        req, = parse_requirements(s)
+        return req
+
+
+def _always_object(classes):
+    """
+    Ensure object appears in the mro even
+    for old-style classes.
+    """
+    if object not in classes:
+        return classes + (object,)
+    return classes
+
+
+def _find_adapter(registry, ob):
+    """Return an adapter factory for `ob` from `registry`"""
+    types = _always_object(inspect.getmro(getattr(ob, '__class__', type(ob))))
+    for t in types:
+        if t in registry:
+            return registry[t]
+
+
+def ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    py31compat.makedirs(dirname, exist_ok=True)
+
+
+def _bypass_ensure_directory(path):
+    """Sandbox-bypassing version of ensure_directory()"""
+    if not WRITE_SUPPORT:
+        raise IOError('"os.mkdir" not supported on this platform.')
+    dirname, filename = split(path)
+    if dirname and filename and not isdir(dirname):
+        _bypass_ensure_directory(dirname)
+        mkdir(dirname, 0o755)
+
+
+def split_sections(s):
+    """Split a string or iterable thereof into (section, content) pairs
+
+    Each ``section`` is a stripped version of the section header ("[section]")
+    and each ``content`` is a list of stripped lines excluding blank lines and
+    comment-only lines.  If there are any such lines before the first section
+    header, they're returned in a first ``section`` of ``None``.
+    """
+    section = None
+    content = []
+    for line in yield_lines(s):
+        if line.startswith("["):
+            if line.endswith("]"):
+                if section or content:
+                    yield section, content
+                section = line[1:-1].strip()
+                content = []
+            else:
+                raise ValueError("Invalid section heading", line)
+        else:
+            content.append(line)
+
+    # wrap up last segment
+    yield section, content
+
+
+def _mkstemp(*args, **kw):
+    old_open = os.open
+    try:
+        # temporarily bypass sandboxing
+        os.open = os_open
+        return tempfile.mkstemp(*args, **kw)
+    finally:
+        # and then put it back
+        os.open = old_open
+
+
+# Silence the PEP440Warning by default, so that end users don't get hit by it
+# randomly just because they use pkg_resources. We want to append the rule
+# because we want earlier uses of filterwarnings to take precedence over this
+# one.
+warnings.filterwarnings("ignore", category=PEP440Warning, append=True)
+
+
+# from jaraco.functools 1.3
+def _call_aside(f, *args, **kwargs):
+    f(*args, **kwargs)
+    return f
+
+
+@_call_aside
+def _initialize(g=globals()):
+    "Set up global resource manager (deliberately not state-saved)"
+    manager = ResourceManager()
+    g['_manager'] = manager
+    g.update(
+        (name, getattr(manager, name))
+        for name in dir(manager)
+        if not name.startswith('_')
+    )
+
+
+@_call_aside
+def _initialize_master_working_set():
+    """
+    Prepare the master working set and make the ``require()``
+    API available.
+
+    This function has explicit effects on the global state
+    of pkg_resources. It is intended to be invoked once at
+    the initialization of this module.
+
+    Invocation by other packages is unsupported and done
+    at their own risk.
+    """
+    working_set = WorkingSet._build_master()
+    _declare_state('object', working_set=working_set)
+
+    require = working_set.require
+    iter_entry_points = working_set.iter_entry_points
+    add_activation_listener = working_set.subscribe
+    run_script = working_set.run_script
+    # backward compatibility
+    run_main = run_script
+    # Activate all distributions already on sys.path with replace=False and
+    # ensure that all distributions added to the working set in the future
+    # (e.g. by calling ``require()``) will get activated as well,
+    # with higher priority (replace=True).
+    tuple(
+        dist.activate(replace=False)
+        for dist in working_set
+    )
+    add_activation_listener(
+        lambda dist: dist.activate(replace=True),
+        existing=False,
+    )
+    working_set.entries = []
+    # match order
+    list(map(working_set.add_entry, sys.path))
+    globals().update(locals())
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--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/appdirs.py
@@ -0,0 +1,552 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2005-2010 ActiveState Software Inc.
+# Copyright (c) 2013 Eddy Petrișor
+
+"""Utilities for determining application-specific dirs.
+
+See <http://github.com/ActiveState/appdirs> for details and usage.
+"""
+# Dev Notes:
+# - MSDN on where to store app data files:
+#   http://support.microsoft.com/default.aspx?scid=kb;en-us;310294#XSLTH3194121123120121120120
+# - Mac OS X: http://developer.apple.com/documentation/MacOSX/Conceptual/BPFileSystem/index.html
+# - XDG spec for Un*x: http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+__version_info__ = (1, 4, 0)
+__version__ = '.'.join(map(str, __version_info__))
+
+
+import sys
+import os
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    unicode = str
+
+if sys.platform.startswith('java'):
+    import platform
+    os_name = platform.java_ver()[3][0]
+    if os_name.startswith('Windows'): # "Windows XP", "Windows 7", etc.
+        system = 'win32'
+    elif os_name.startswith('Mac'): # "Mac OS X", etc.
+        system = 'darwin'
+    else: # "Linux", "SunOS", "FreeBSD", etc.
+        # Setting this to "linux2" is not ideal, but only Windows or Mac
+        # are actually checked for and the rest of the module expects
+        # *sys.platform* style strings.
+        system = 'linux2'
+else:
+    system = sys.platform
+
+
+
+def user_data_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        Mac OS X:               ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\Application Data\<AppAuthor>\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>
+        Win 7  (not roaming):   C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>
+        Win 7  (roaming):       C:\Users\<username>\AppData\Roaming\<AppAuthor>\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.normpath(_get_win_folder(const))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Application Support/')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_DATA_HOME', os.path.expanduser("~/.local/share"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_data_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of data dirs should be
+            returned. By default, the first item from XDG_DATA_DIRS is
+            returned, or '/usr/local/share/<AppName>',
+            if XDG_DATA_DIRS is not set
+
+    Typical user data directories are:
+        Mac OS X:   /Library/Application Support/<AppName>
+        Unix:       /usr/local/share/<AppName> or /usr/share/<AppName>
+        Win XP:     C:\Documents and Settings\All Users\Application Data\<AppAuthor>\<AppName>
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+        Win 7:      C:\ProgramData\<AppAuthor>\<AppName>   # Hidden, but writeable on Win 7.
+
+    For Unix, this is using the $XDG_DATA_DIRS[0] default.
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('/Library/Application Support')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        # XDG default for $XDG_DATA_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_DATA_DIRS',
+                         os.pathsep.join(['/usr/local/share', '/usr/share']))
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+        return path
+
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_config_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        Mac OS X:               same as user_data_dir
+        Unix:                   ~/.config/<AppName>     # or in $XDG_CONFIG_HOME, if defined
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by deafult "~/.config/<AppName>".
+    """
+    if system in ["win32", "darwin"]:
+        path = user_data_dir(appname, appauthor, None, roaming)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', os.path.expanduser("~/.config"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of config dirs should be
+            returned. By default, the first item from XDG_CONFIG_DIRS is
+            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set
+
+    Typical user data directories are:
+        Mac OS X:   same as site_data_dir
+        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
+                    $XDG_CONFIG_DIRS
+        Win *:      same as site_data_dir
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+
+    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system in ["win32", "darwin"]:
+        path = site_data_dir(appname, appauthor)
+        if appname and version:
+            path = os.path.join(path, version)
+    else:
+        # XDG default for $XDG_CONFIG_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+    return path
+
+
+def user_cache_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Cache" to the base app data dir for Windows. See
+            discussion below.
+
+    Typical user cache directories are:
+        Mac OS X:   ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Cache
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go in
+    the `CSIDL_LOCAL_APPDATA` directory. This is identical to the non-roaming
+    app data dir (the default returned by `user_data_dir` above). Apps typically
+    put cache data somewhere *under* the given dir here. Some examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+            if opinion:
+                path = os.path.join(path, "Cache")
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Caches')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_CACHE_HOME', os.path.expanduser('~/.cache'))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_log_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific log dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Logs" to the base app data dir for Windows, and "log" to the
+            base cache dir for Unix. See discussion below.
+
+    Typical user cache directories are:
+        Mac OS X:   ~/Library/Logs/<AppName>
+        Unix:       ~/.cache/<AppName>/log  # or under $XDG_CACHE_HOME if defined
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Logs
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Logs
+
+    On Windows the only suggestion in the MSDN docs is that local settings
+    go in the `CSIDL_LOCAL_APPDATA` directory. (Note: I'm interested in
+    examples of what some windows apps use for a logs dir.)
+
+    OPINION: This function appends "Logs" to the `CSIDL_LOCAL_APPDATA`
+    value for Windows and appends "log" to the user cache dir for Unix.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "darwin":
+        path = os.path.join(
+            os.path.expanduser('~/Library/Logs'),
+            appname)
+    elif system == "win32":
+        path = user_data_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "Logs")
+    else:
+        path = user_cache_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "log")
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+class AppDirs(object):
+    """Convenience wrapper for getting application dirs."""
+    def __init__(self, appname, appauthor=None, version=None, roaming=False,
+                 multipath=False):
+        self.appname = appname
+        self.appauthor = appauthor
+        self.version = version
+        self.roaming = roaming
+        self.multipath = multipath
+
+    @property
+    def user_data_dir(self):
+        return user_data_dir(self.appname, self.appauthor,
+                             version=self.version, roaming=self.roaming)
+
+    @property
+    def site_data_dir(self):
+        return site_data_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_config_dir(self):
+        return user_config_dir(self.appname, self.appauthor,
+                               version=self.version, roaming=self.roaming)
+
+    @property
+    def site_config_dir(self):
+        return site_config_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_cache_dir(self):
+        return user_cache_dir(self.appname, self.appauthor,
+                              version=self.version)
+
+    @property
+    def user_log_dir(self):
+        return user_log_dir(self.appname, self.appauthor,
+                            version=self.version)
+
+
+#---- internal support stuff
+
+def _get_win_folder_from_registry(csidl_name):
+    """This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    dir, type = _winreg.QueryValueEx(key, shell_folder_name)
+    return dir
+
+
+def _get_win_folder_with_pywin32(csidl_name):
+    from win32com.shell import shellcon, shell
+    dir = shell.SHGetFolderPath(0, getattr(shellcon, csidl_name), 0, 0)
+    # Try to make this a unicode path because SHGetFolderPath does
+    # not return unicode strings when there is unicode data in the
+    # path.
+    try:
+        dir = unicode(dir)
+
+        # Downgrade to short path name if have highbit chars. See
+        # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+        has_high_char = False
+        for c in dir:
+            if ord(c) > 255:
+                has_high_char = True
+                break
+        if has_high_char:
+            try:
+                import win32api
+                dir = win32api.GetShortPathName(dir)
+            except ImportError:
+                pass
+    except UnicodeError:
+        pass
+    return dir
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    import ctypes
+
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+def _get_win_folder_with_jna(csidl_name):
+    import array
+    from com.sun import jna
+    from com.sun.jna.platform import win32
+
+    buf_size = win32.WinDef.MAX_PATH * 2
+    buf = array.zeros('c', buf_size)
+    shell = win32.Shell32.INSTANCE
+    shell.SHGetFolderPath(None, getattr(win32.ShlObj, csidl_name), None, win32.ShlObj.SHGFP_TYPE_CURRENT, buf)
+    dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in dir:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf = array.zeros('c', buf_size)
+        kernel = win32.Kernel32.INSTANCE
+        if kernal.GetShortPathName(dir, buf, buf_size):
+            dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    return dir
+
+if system == "win32":
+    try:
+        import win32com.shell
+        _get_win_folder = _get_win_folder_with_pywin32
+    except ImportError:
+        try:
+            from ctypes import windll
+            _get_win_folder = _get_win_folder_with_ctypes
+        except ImportError:
+            try:
+                import com.sun.jna
+                _get_win_folder = _get_win_folder_with_jna
+            except ImportError:
+                _get_win_folder = _get_win_folder_from_registry
+
+
+#---- self test code
+
+if __name__ == "__main__":
+    appname = "MyApp"
+    appauthor = "MyCompany"
+
+    props = ("user_data_dir", "site_data_dir",
+             "user_config_dir", "site_config_dir",
+             "user_cache_dir", "user_log_dir")
+
+    print("-- app dirs (with optional 'version')")
+    dirs = AppDirs(appname, appauthor, version="1.0")
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'version')")
+    dirs = AppDirs(appname, appauthor)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'appauthor')")
+    dirs = AppDirs(appname)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (with disabled 'appauthor')")
+    dirs = AppDirs(appname, appauthor=False)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py
new file mode 100644
index 0000000..95d330e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py
@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
+
+__title__ = "packaging"
+__summary__ = "Core utilities for Python packages"
+__uri__ = "https://github.com/pypa/packaging"
+
+__version__ = "16.8"
+
+__author__ = "Donald Stufft and individual contributors"
+__email__ = "donald@stufft.io"
+
+__license__ = "BSD or Apache License, Version 2.0"
+__copyright__ = "Copyright 2014-2016 %s" % __author__
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py
new file mode 100644
index 0000000..5ee6220
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+from .__about__ import (
+    __author__, __copyright__, __email__, __license__, __summary__, __title__,
+    __uri__, __version__
+)
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
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diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py
new file mode 100644
index 0000000..210bb80
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py
@@ -0,0 +1,30 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import sys
+
+
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+
+# flake8: noqa
+
+if PY3:
+    string_types = str,
+else:
+    string_types = basestring,
+
+
+def with_metaclass(meta, *bases):
+    """
+    Create a base class with a metaclass.
+    """
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py
new file mode 100644
index 0000000..ccc2786
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py
@@ -0,0 +1,68 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+
+class Infinity(object):
+
+    def __repr__(self):
+        return "Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self, other):
+        return True
+
+    def __neg__(self):
+        return NegativeInfinity
+
+Infinity = Infinity()
+
+
+class NegativeInfinity(object):
+
+    def __repr__(self):
+        return "-Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+    def __neg__(self):
+        return Infinity
+
+NegativeInfinity = NegativeInfinity()
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py
new file mode 100644
index 0000000..892e578
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py
@@ -0,0 +1,301 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import operator
+import os
+import platform
+import sys
+
+from pkg_resources.extern.pyparsing import ParseException, ParseResults, stringStart, stringEnd
+from pkg_resources.extern.pyparsing import ZeroOrMore, Group, Forward, QuotedString
+from pkg_resources.extern.pyparsing import Literal as L  # noqa
+
+from ._compat import string_types
+from .specifiers import Specifier, InvalidSpecifier
+
+
+__all__ = [
+    "InvalidMarker", "UndefinedComparison", "UndefinedEnvironmentName",
+    "Marker", "default_environment",
+]
+
+
+class InvalidMarker(ValueError):
+    """
+    An invalid marker was found, users should refer to PEP 508.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """
+    An invalid operation was attempted on a value that doesn't support it.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """
+    A name was attempted to be used that does not exist inside of the
+    environment.
+    """
+
+
+class Node(object):
+
+    def __init__(self, value):
+        self.value = value
+
+    def __str__(self):
+        return str(self.value)
+
+    def __repr__(self):
+        return "<{0}({1!r})>".format(self.__class__.__name__, str(self))
+
+    def serialize(self):
+        raise NotImplementedError
+
+
+class Variable(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+class Value(Node):
+
+    def serialize(self):
+        return '"{0}"'.format(self)
+
+
+class Op(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+VARIABLE = (
+    L("implementation_version") |
+    L("platform_python_implementation") |
+    L("implementation_name") |
+    L("python_full_version") |
+    L("platform_release") |
+    L("platform_version") |
+    L("platform_machine") |
+    L("platform_system") |
+    L("python_version") |
+    L("sys_platform") |
+    L("os_name") |
+    L("os.name") |  # PEP-345
+    L("sys.platform") |  # PEP-345
+    L("platform.version") |  # PEP-345
+    L("platform.machine") |  # PEP-345
+    L("platform.python_implementation") |  # PEP-345
+    L("python_implementation") |  # undocumented setuptools legacy
+    L("extra")
+)
+ALIASES = {
+    'os.name': 'os_name',
+    'sys.platform': 'sys_platform',
+    'platform.version': 'platform_version',
+    'platform.machine': 'platform_machine',
+    'platform.python_implementation': 'platform_python_implementation',
+    'python_implementation': 'platform_python_implementation'
+}
+VARIABLE.setParseAction(lambda s, l, t: Variable(ALIASES.get(t[0], t[0])))
+
+VERSION_CMP = (
+    L("===") |
+    L("==") |
+    L(">=") |
+    L("<=") |
+    L("!=") |
+    L("~=") |
+    L(">") |
+    L("<")
+)
+
+MARKER_OP = VERSION_CMP | L("not in") | L("in")
+MARKER_OP.setParseAction(lambda s, l, t: Op(t[0]))
+
+MARKER_VALUE = QuotedString("'") | QuotedString('"')
+MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0]))
+
+BOOLOP = L("and") | L("or")
+
+MARKER_VAR = VARIABLE | MARKER_VALUE
+
+MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR)
+MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0]))
+
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+
+MARKER_EXPR = Forward()
+MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN)
+MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR)
+
+MARKER = stringStart + MARKER_EXPR + stringEnd
+
+
+def _coerce_parse_result(results):
+    if isinstance(results, ParseResults):
+        return [_coerce_parse_result(i) for i in results]
+    else:
+        return results
+
+
+def _format_marker(marker, first=True):
+    assert isinstance(marker, (list, tuple, string_types))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (isinstance(marker, list) and len(marker) == 1 and
+            isinstance(marker[0], (list, tuple))):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": operator.lt,
+    "<=": operator.le,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.ge,
+    ">": operator.gt,
+}
+
+
+def _eval_op(lhs, op, rhs):
+    try:
+        spec = Specifier("".join([op.serialize(), rhs]))
+    except InvalidSpecifier:
+        pass
+    else:
+        return spec.contains(lhs)
+
+    oper = _operators.get(op.serialize())
+    if oper is None:
+        raise UndefinedComparison(
+            "Undefined {0!r} on {1!r} and {2!r}.".format(op, lhs, rhs)
+        )
+
+    return oper(lhs, rhs)
+
+
+_undefined = object()
+
+
+def _get_env(environment, name):
+    value = environment.get(name, _undefined)
+
+    if value is _undefined:
+        raise UndefinedEnvironmentName(
+            "{0!r} does not exist in evaluation environment.".format(name)
+        )
+
+    return value
+
+
+def _evaluate_markers(markers, environment):
+    groups = [[]]
+
+    for marker in markers:
+        assert isinstance(marker, (list, tuple, string_types))
+
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                lhs_value = _get_env(environment, lhs.value)
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                rhs_value = _get_env(environment, rhs.value)
+
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value))
+        else:
+            assert marker in ["and", "or"]
+            if marker == "or":
+                groups.append([])
+
+    return any(all(item) for item in groups)
+
+
+def format_full_version(info):
+    version = '{0.major}.{0.minor}.{0.micro}'.format(info)
+    kind = info.releaselevel
+    if kind != 'final':
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment():
+    if hasattr(sys, 'implementation'):
+        iver = format_full_version(sys.implementation.version)
+        implementation_name = sys.implementation.name
+    else:
+        iver = '0'
+        implementation_name = ''
+
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": platform.python_version()[:3],
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker(object):
+
+    def __init__(self, marker):
+        try:
+            self._markers = _coerce_parse_result(MARKER.parseString(marker))
+        except ParseException as e:
+            err_str = "Invalid marker: {0!r}, parse error at {1!r}".format(
+                marker, marker[e.loc:e.loc + 8])
+            raise InvalidMarker(err_str)
+
+    def __str__(self):
+        return _format_marker(self._markers)
+
+    def __repr__(self):
+        return "<Marker({0!r})>".format(str(self))
+
+    def evaluate(self, environment=None):
+        """Evaluate a marker.
+
+        Return the boolean from evaluating the given marker against the
+        environment. environment is an optional argument to override all or
+        part of the determined environment.
+
+        The environment is determined from the current Python process.
+        """
+        current_environment = default_environment()
+        if environment is not None:
+            current_environment.update(environment)
+
+        return _evaluate_markers(self._markers, current_environment)
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py
new file mode 100644
index 0000000..0c8c4a3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py
@@ -0,0 +1,127 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import string
+import re
+
+from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
+from pkg_resources.extern.pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
+from pkg_resources.extern.pyparsing import Literal as L  # noqa
+from pkg_resources.extern.six.moves.urllib import parse as urlparse
+
+from .markers import MARKER_EXPR, Marker
+from .specifiers import LegacySpecifier, Specifier, SpecifierSet
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+ALPHANUM = Word(string.ascii_letters + string.digits)
+
+LBRACKET = L("[").suppress()
+RBRACKET = L("]").suppress()
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+COMMA = L(",").suppress()
+SEMICOLON = L(";").suppress()
+AT = L("@").suppress()
+
+PUNCTUATION = Word("-_.")
+IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
+IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
+
+NAME = IDENTIFIER("name")
+EXTRA = IDENTIFIER
+
+URI = Regex(r'[^ ]+')("url")
+URL = (AT + URI)
+
+EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA)
+EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras")
+
+VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE)
+VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE)
+
+VERSION_ONE = VERSION_PEP440 ^ VERSION_LEGACY
+VERSION_MANY = Combine(VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE),
+                       joinString=",", adjacent=False)("_raw_spec")
+_VERSION_SPEC = Optional(((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY))
+_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or '')
+
+VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier")
+VERSION_SPEC.setParseAction(lambda s, l, t: t[1])
+
+MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
+MARKER_EXPR.setParseAction(
+    lambda s, l, t: Marker(s[t._original_start:t._original_end])
+)
+MARKER_SEPERATOR = SEMICOLON
+MARKER = MARKER_SEPERATOR + MARKER_EXPR
+
+VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER)
+URL_AND_MARKER = URL + Optional(MARKER)
+
+NAMED_REQUIREMENT = \
+    NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER)
+
+REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd
+
+
+class Requirement(object):
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string):
+        try:
+            req = REQUIREMENT.parseString(requirement_string)
+        except ParseException as e:
+            raise InvalidRequirement(
+                "Invalid requirement, parse error at \"{0!r}\"".format(
+                    requirement_string[e.loc:e.loc + 8]))
+
+        self.name = req.name
+        if req.url:
+            parsed_url = urlparse.urlparse(req.url)
+            if not (parsed_url.scheme and parsed_url.netloc) or (
+                    not parsed_url.scheme and not parsed_url.netloc):
+                raise InvalidRequirement("Invalid URL given")
+            self.url = req.url
+        else:
+            self.url = None
+        self.extras = set(req.extras.asList() if req.extras else [])
+        self.specifier = SpecifierSet(req.specifier)
+        self.marker = req.marker if req.marker else None
+
+    def __str__(self):
+        parts = [self.name]
+
+        if self.extras:
+            parts.append("[{0}]".format(",".join(sorted(self.extras))))
+
+        if self.specifier:
+            parts.append(str(self.specifier))
+
+        if self.url:
+            parts.append("@ {0}".format(self.url))
+
+        if self.marker:
+            parts.append("; {0}".format(self.marker))
+
+        return "".join(parts)
+
+    def __repr__(self):
+        return "<Requirement({0!r})>".format(str(self))
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py
new file mode 100644
index 0000000..7f5a76c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py
@@ -0,0 +1,774 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import abc
+import functools
+import itertools
+import re
+
+from ._compat import string_types, with_metaclass
+from .version import Version, LegacyVersion, parse
+
+
+class InvalidSpecifier(ValueError):
+    """
+    An invalid specifier was found, users should refer to PEP 440.
+    """
+
+
+class BaseSpecifier(with_metaclass(abc.ABCMeta, object)):
+
+    @abc.abstractmethod
+    def __str__(self):
+        """
+        Returns the str representation of this Specifier like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self):
+        """
+        Returns a hash value for this Specifier like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are equal.
+        """
+
+    @abc.abstractmethod
+    def __ne__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are not equal.
+        """
+
+    @abc.abstractproperty
+    def prereleases(self):
+        """
+        Returns whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @prereleases.setter
+    def prereleases(self, value):
+        """
+        Sets whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item, prereleases=None):
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @abc.abstractmethod
+    def filter(self, iterable, prereleases=None):
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class _IndividualSpecifier(BaseSpecifier):
+
+    _operators = {}
+
+    def __init__(self, spec="", prereleases=None):
+        match = self._regex.search(spec)
+        if not match:
+            raise InvalidSpecifier("Invalid specifier: '{0}'".format(spec))
+
+        self._spec = (
+            match.group("operator").strip(),
+            match.group("version").strip(),
+        )
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<{0}({1!r}{2})>".format(
+            self.__class__.__name__,
+            str(self),
+            pre,
+        )
+
+    def __str__(self):
+        return "{0}{1}".format(*self._spec)
+
+    def __hash__(self):
+        return hash(self._spec)
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec == other._spec
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec != other._spec
+
+    def _get_operator(self, op):
+        return getattr(self, "_compare_{0}".format(self._operators[op]))
+
+    def _coerce_version(self, version):
+        if not isinstance(version, (LegacyVersion, Version)):
+            version = parse(version)
+        return version
+
+    @property
+    def operator(self):
+        return self._spec[0]
+
+    @property
+    def version(self):
+        return self._spec[1]
+
+    @property
+    def prereleases(self):
+        return self._prereleases
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Determine if prereleases are to be allowed or not.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # Normalize item to a Version or LegacyVersion, this allows us to have
+        # a shortcut for ``"2.0" in Specifier(">=2")
+        item = self._coerce_version(item)
+
+        # Determine if we should be supporting prereleases in this specifier
+        # or not, if we do not support prereleases than we can short circuit
+        # logic if this version is a prereleases.
+        if item.is_prerelease and not prereleases:
+            return False
+
+        # Actually do the comparison to determine if this item is contained
+        # within this Specifier or not.
+        return self._get_operator(self.operator)(item, self.version)
+
+    def filter(self, iterable, prereleases=None):
+        yielded = False
+        found_prereleases = []
+
+        kw = {"prereleases": prereleases if prereleases is not None else True}
+
+        # Attempt to iterate over all the values in the iterable and if any of
+        # them match, yield them.
+        for version in iterable:
+            parsed_version = self._coerce_version(version)
+
+            if self.contains(parsed_version, **kw):
+                # If our version is a prerelease, and we were not set to allow
+                # prereleases, then we'll store it for later incase nothing
+                # else matches this specifier.
+                if (parsed_version.is_prerelease and not
+                        (prereleases or self.prereleases)):
+                    found_prereleases.append(version)
+                # Either this is not a prerelease, or we should have been
+                # accepting prereleases from the begining.
+                else:
+                    yielded = True
+                    yield version
+
+        # Now that we've iterated over everything, determine if we've yielded
+        # any values, and if we have not and we have any prereleases stored up
+        # then we will go ahead and yield the prereleases.
+        if not yielded and found_prereleases:
+            for version in found_prereleases:
+                yield version
+
+
+class LegacySpecifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(==|!=|<=|>=|<|>))
+        \s*
+        (?P<version>
+            [^,;\s)]* # Since this is a "legacy" specifier, and the version
+                      # string can be just about anything, we match everything
+                      # except for whitespace, a semi-colon for marker support,
+                      # a closing paren since versions can be enclosed in
+                      # them, and a comma since it's a version separator.
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+    }
+
+    def _coerce_version(self, version):
+        if not isinstance(version, LegacyVersion):
+            version = LegacyVersion(str(version))
+        return version
+
+    def _compare_equal(self, prospective, spec):
+        return prospective == self._coerce_version(spec)
+
+    def _compare_not_equal(self, prospective, spec):
+        return prospective != self._coerce_version(spec)
+
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= self._coerce_version(spec)
+
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= self._coerce_version(spec)
+
+    def _compare_less_than(self, prospective, spec):
+        return prospective < self._coerce_version(spec)
+
+    def _compare_greater_than(self, prospective, spec):
+        return prospective > self._coerce_version(spec)
+
+
+def _require_version_compare(fn):
+    @functools.wraps(fn)
+    def wrapped(self, prospective, spec):
+        if not isinstance(prospective, Version):
+            return False
+        return fn(self, prospective, spec)
+    return wrapped
+
+
+class Specifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
+        (?P<version>
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                (?<====)  # Only match for the identity operator
+                \s*
+                [^\s]*    # We just match everything, except for whitespace
+                          # since we are only testing for strict identity.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?<===|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+
+                # You cannot use a wild card and a dev or local version
+                # together so group them with a | and make them optional.
+                (?:
+                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                    |
+                    \.\*  # Wild card syntax of .*
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?<=~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?<!==|!=|~=)         # We have special cases for these
+                                      # operators so we want to make sure they
+                                      # don't match here.
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "~=": "compatible",
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    @_require_version_compare
+    def _compare_compatible(self, prospective, spec):
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore post and dev releases and we want to treat the pre-release as
+        # it's own separate segment.
+        prefix = ".".join(
+            list(
+                itertools.takewhile(
+                    lambda x: (not x.startswith("post") and not
+                               x.startswith("dev")),
+                    _version_split(spec),
+                )
+            )[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return (self._get_operator(">=")(prospective, spec) and
+                self._get_operator("==")(prospective, prefix))
+
+    @_require_version_compare
+    def _compare_equal(self, prospective, spec):
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            # In the case of prefix matching we want to ignore local segment.
+            prospective = Version(prospective.public)
+            # Split the spec out by dots, and pretend that there is an implicit
+            # dot in between a release segment and a pre-release segment.
+            spec = _version_split(spec[:-2])  # Remove the trailing .*
+
+            # Split the prospective version out by dots, and pretend that there
+            # is an implicit dot in between a release segment and a pre-release
+            # segment.
+            prospective = _version_split(str(prospective))
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            prospective = prospective[:len(spec)]
+
+            # Pad out our two sides with zeros so that they both equal the same
+            # length.
+            spec, prospective = _pad_version(spec, prospective)
+        else:
+            # Convert our spec string into a Version
+            spec = Version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec.local:
+                prospective = Version(prospective.public)
+
+        return prospective == spec
+
+    @_require_version_compare
+    def _compare_not_equal(self, prospective, spec):
+        return not self._compare_equal(prospective, spec)
+
+    @_require_version_compare
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= Version(spec)
+
+    @_require_version_compare
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= Version(spec)
+
+    @_require_version_compare
+    def _compare_less_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a pre-release version, that we do not accept pre-release
+        # versions for the version mentioned in the specifier (e.g. <3.1 should
+        # not match 3.1.dev0, but should match 3.0.dev0).
+        if not spec.is_prerelease and prospective.is_prerelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    @_require_version_compare
+    def _compare_greater_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a post-release version, that we do not accept
+        # post-release versions for the version mentioned in the specifier
+        # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0).
+        if not spec.is_postrelease and prospective.is_postrelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # Ensure that we do not allow a local version of the version mentioned
+        # in the specifier, which is techincally greater than, to match.
+        if prospective.local is not None:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective, spec):
+        return str(prospective).lower() == str(spec).lower()
+
+    @property
+    def prereleases(self):
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Look at all of our specifiers and determine if they are inclusive
+        # operators, and if they are if they are including an explicit
+        # prerelease.
+        operator, version = self._spec
+        if operator in ["==", ">=", "<=", "~=", "==="]:
+            # The == specifier can include a trailing .*, if it does we
+            # want to remove before parsing.
+            if operator == "==" and version.endswith(".*"):
+                version = version[:-2]
+
+            # Parse the version, and if it is a pre-release than this
+            # specifier allows pre-releases.
+            if parse(version).is_prerelease:
+                return True
+
+        return False
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+
+_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
+
+
+def _version_split(version):
+    result = []
+    for item in version.split("."):
+        match = _prefix_regex.search(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _pad_version(left, right):
+    left_split, right_split = [], []
+
+    # Get the release segment of our versions
+    left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left)))
+    right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right)))
+
+    # Get the rest of our versions
+    left_split.append(left[len(left_split[0]):])
+    right_split.append(right[len(right_split[0]):])
+
+    # Insert our padding
+    left_split.insert(
+        1,
+        ["0"] * max(0, len(right_split[0]) - len(left_split[0])),
+    )
+    right_split.insert(
+        1,
+        ["0"] * max(0, len(left_split[0]) - len(right_split[0])),
+    )
+
+    return (
+        list(itertools.chain(*left_split)),
+        list(itertools.chain(*right_split)),
+    )
+
+
+class SpecifierSet(BaseSpecifier):
+
+    def __init__(self, specifiers="", prereleases=None):
+        # Split on , to break each indidivual specifier into it's own item, and
+        # strip each item to remove leading/trailing whitespace.
+        specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+        # Parsed each individual specifier, attempting first to make it a
+        # Specifier and falling back to a LegacySpecifier.
+        parsed = set()
+        for specifier in specifiers:
+            try:
+                parsed.add(Specifier(specifier))
+            except InvalidSpecifier:
+                parsed.add(LegacySpecifier(specifier))
+
+        # Turn our parsed specifiers into a frozen set and save them for later.
+        self._specs = frozenset(parsed)
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<SpecifierSet({0!r}{1})>".format(str(self), pre)
+
+    def __str__(self):
+        return ",".join(sorted(str(s) for s in self._specs))
+
+    def __hash__(self):
+        return hash(self._specs)
+
+    def __and__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = frozenset(self._specs | other._specs)
+
+        if self._prereleases is None and other._prereleases is not None:
+            specifier._prereleases = other._prereleases
+        elif self._prereleases is not None and other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        elif self._prereleases == other._prereleases:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease "
+                "overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs == other._specs
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs != other._specs
+
+    def __len__(self):
+        return len(self._specs)
+
+    def __iter__(self):
+        return iter(self._specs)
+
+    @property
+    def prereleases(self):
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        return any(s.prereleases for s in self._specs)
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Ensure that our item is a Version or LegacyVersion instance.
+        if not isinstance(item, (LegacyVersion, Version)):
+            item = parse(item)
+
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # We can determine if we're going to allow pre-releases by looking to
+        # see if any of the underlying items supports them. If none of them do
+        # and this item is a pre-release then we do not allow it and we can
+        # short circuit that here.
+        # Note: This means that 1.0.dev1 would not be contained in something
+        #       like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0
+        if not prereleases and item.is_prerelease:
+            return False
+
+        # We simply dispatch to the underlying specs here to make sure that the
+        # given version is contained within all of them.
+        # Note: This use of all() here means that an empty set of specifiers
+        #       will always return True, this is an explicit design decision.
+        return all(
+            s.contains(item, prereleases=prereleases)
+            for s in self._specs
+        )
+
+    def filter(self, iterable, prereleases=None):
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # If we have any specifiers, then we want to wrap our iterable in the
+        # filter method for each one, this will act as a logical AND amongst
+        # each specifier.
+        if self._specs:
+            for spec in self._specs:
+                iterable = spec.filter(iterable, prereleases=bool(prereleases))
+            return iterable
+        # If we do not have any specifiers, then we need to have a rough filter
+        # which will filter out any pre-releases, unless there are no final
+        # releases, and which will filter out LegacyVersion in general.
+        else:
+            filtered = []
+            found_prereleases = []
+
+            for item in iterable:
+                # Ensure that we some kind of Version class for this item.
+                if not isinstance(item, (LegacyVersion, Version)):
+                    parsed_version = parse(item)
+                else:
+                    parsed_version = item
+
+                # Filter out any item which is parsed as a LegacyVersion
+                if isinstance(parsed_version, LegacyVersion):
+                    continue
+
+                # Store any item which is a pre-release for later unless we've
+                # already found a final version or we are accepting prereleases
+                if parsed_version.is_prerelease and not prereleases:
+                    if not filtered:
+                        found_prereleases.append(item)
+                else:
+                    filtered.append(item)
+
+            # If we've found no items except for pre-releases, then we'll go
+            # ahead and use the pre-releases
+            if not filtered and found_prereleases and prereleases is None:
+                return found_prereleases
+
+            return filtered
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py
new file mode 100644
index 0000000..942387c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import re
+
+
+_canonicalize_regex = re.compile(r"[-_.]+")
+
+
+def canonicalize_name(name):
+    # This is taken from PEP 503.
+    return _canonicalize_regex.sub("-", name).lower()
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py
new file mode 100644
index 0000000..83b5ee8
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py
@@ -0,0 +1,393 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import collections
+import itertools
+import re
+
+from ._structures import Infinity
+
+
+__all__ = [
+    "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"
+]
+
+
+_Version = collections.namedtuple(
+    "_Version",
+    ["epoch", "release", "dev", "pre", "post", "local"],
+)
+
+
+def parse(version):
+    """
+    Parse the given version string and return either a :class:`Version` object
+    or a :class:`LegacyVersion` object depending on if the given version is
+    a valid PEP 440 version or a legacy version.
+    """
+    try:
+        return Version(version)
+    except InvalidVersion:
+        return LegacyVersion(version)
+
+
+class InvalidVersion(ValueError):
+    """
+    An invalid version was found, users should refer to PEP 440.
+    """
+
+
+class _BaseVersion(object):
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class LegacyVersion(_BaseVersion):
+
+    def __init__(self, version):
+        self._version = str(version)
+        self._key = _legacy_cmpkey(self._version)
+
+    def __str__(self):
+        return self._version
+
+    def __repr__(self):
+        return "<LegacyVersion({0})>".format(repr(str(self)))
+
+    @property
+    def public(self):
+        return self._version
+
+    @property
+    def base_version(self):
+        return self._version
+
+    @property
+    def local(self):
+        return None
+
+    @property
+    def is_prerelease(self):
+        return False
+
+    @property
+    def is_postrelease(self):
+        return False
+
+
+_legacy_version_component_re = re.compile(
+    r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE,
+)
+
+_legacy_version_replacement_map = {
+    "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@",
+}
+
+
+def _parse_version_parts(s):
+    for part in _legacy_version_component_re.split(s):
+        part = _legacy_version_replacement_map.get(part, part)
+
+        if not part or part == ".":
+            continue
+
+        if part[:1] in "0123456789":
+            # pad for numeric comparison
+            yield part.zfill(8)
+        else:
+            yield "*" + part
+
+    # ensure that alpha/beta/candidate are before final
+    yield "*final"
+
+
+def _legacy_cmpkey(version):
+    # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
+    # greater than or equal to 0. This will effectively put the LegacyVersion,
+    # which uses the defacto standard originally implemented by setuptools,
+    # as before all PEP 440 versions.
+    epoch = -1
+
+    # This scheme is taken from pkg_resources.parse_version setuptools prior to
+    # it's adoption of the packaging library.
+    parts = []
+    for part in _parse_version_parts(version.lower()):
+        if part.startswith("*"):
+            # remove "-" before a prerelease tag
+            if part < "*final":
+                while parts and parts[-1] == "*final-":
+                    parts.pop()
+
+            # remove trailing zeros from each series of numeric parts
+            while parts and parts[-1] == "00000000":
+                parts.pop()
+
+        parts.append(part)
+    parts = tuple(parts)
+
+    return epoch, parts
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P<epoch>[0-9]+)!)?                           # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P<pre>                                          # pre-release
+            [-_\.]?
+            (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P<pre_n>[0-9]+)?
+        )?
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?P<post_l>post|rev|r)
+                [-_\.]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?
+        (?P<dev>                                          # dev release
+            [-_\.]?
+            (?P<dev_l>dev)
+            [-_\.]?
+            (?P<dev_n>[0-9]+)?
+        )?
+    )
+    (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(
+        r"^\s*" + VERSION_PATTERN + r"\s*$",
+        re.VERBOSE | re.IGNORECASE,
+    )
+
+    def __init__(self, version):
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion("Invalid version: '{0}'".format(version))
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(
+                match.group("pre_l"),
+                match.group("pre_n"),
+            ),
+            post=_parse_letter_version(
+                match.group("post_l"),
+                match.group("post_n1") or match.group("post_n2"),
+            ),
+            dev=_parse_letter_version(
+                match.group("dev_l"),
+                match.group("dev_n"),
+            ),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self):
+        return "<Version({0})>".format(repr(str(self)))
+
+    def __str__(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        # Pre-release
+        if self._version.pre is not None:
+            parts.append("".join(str(x) for x in self._version.pre))
+
+        # Post-release
+        if self._version.post is not None:
+            parts.append(".post{0}".format(self._version.post[1]))
+
+        # Development release
+        if self._version.dev is not None:
+            parts.append(".dev{0}".format(self._version.dev[1]))
+
+        # Local version segment
+        if self._version.local is not None:
+            parts.append(
+                "+{0}".format(".".join(str(x) for x in self._version.local))
+            )
+
+        return "".join(parts)
+
+    @property
+    def public(self):
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        return "".join(parts)
+
+    @property
+    def local(self):
+        version_string = str(self)
+        if "+" in version_string:
+            return version_string.split("+", 1)[1]
+
+    @property
+    def is_prerelease(self):
+        return bool(self._version.dev or self._version.pre)
+
+    @property
+    def is_postrelease(self):
+        return bool(self._version.post)
+
+
+def _parse_letter_version(letter, number):
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+
+_local_version_seperators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local):
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_seperators.split(local)
+        )
+
+
+def _cmpkey(epoch, release, pre, post, dev, local):
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    release = tuple(
+        reversed(list(
+            itertools.dropwhile(
+                lambda x: x == 0,
+                reversed(release),
+            )
+        ))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        pre = -Infinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        pre = Infinity
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        post = -Infinity
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        dev = Infinity
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        local = -Infinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        local = tuple(
+            (i, "") if isinstance(i, int) else (-Infinity, i)
+            for i in local
+        )
+
+    return epoch, release, pre, post, dev, local
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py
new file mode 100644
index 0000000..a212243
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py
@@ -0,0 +1,5696 @@
+# module pyparsing.py
+#
+# Copyright (c) 2003-2016  Paul T. McGuire
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__doc__ = \
+"""
+pyparsing module - Classes and methods to define and execute parsing grammars
+
+The pyparsing module is an alternative approach to creating and executing simple grammars,
+vs. the traditional lex/yacc approach, or the use of regular expressions.  With pyparsing, you
+don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
+provides a library of classes that you use to construct the grammar directly in Python.
+
+Here is a program to parse "Hello, World!" (or any greeting of the form 
+C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements 
+(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
+L{Literal} expressions)::
+
+    from pyparsing import Word, alphas
+
+    # define grammar of a greeting
+    greet = Word(alphas) + "," + Word(alphas) + "!"
+
+    hello = "Hello, World!"
+    print (hello, "->", greet.parseString(hello))
+
+The program outputs the following::
+
+    Hello, World! -> ['Hello', ',', 'World', '!']
+
+The Python representation of the grammar is quite readable, owing to the self-explanatory
+class names, and the use of '+', '|' and '^' operators.
+
+The L{ParseResults} object returned from L{ParserElement.parseString<ParserElement.parseString>} can be accessed as a nested list, a dictionary, or an
+object with named attributes.
+
+The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
+ - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello  ,  World  !", etc.)
+ - quoted strings
+ - embedded comments
+"""
+
+__version__ = "2.1.10"
+__versionTime__ = "07 Oct 2016 01:31 UTC"
+__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
+
+import string
+from weakref import ref as wkref
+import copy
+import sys
+import warnings
+import re
+import sre_constants
+import collections
+import pprint
+import traceback
+import types
+from datetime import datetime
+
+try:
+    from _thread import RLock
+except ImportError:
+    from threading import RLock
+
+try:
+    from collections import OrderedDict as _OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict as _OrderedDict
+    except ImportError:
+        _OrderedDict = None
+
+#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
+
+__all__ = [
+'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
+'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
+'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
+'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
+'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
+'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 
+'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
+'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
+'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
+'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'hexnums',
+'htmlComment', 'javaStyleComment', 'line', 'lineEnd', 'lineStart', 'lineno',
+'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
+'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
+'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity', 
+'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
+'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
+'indentedBlock', 'originalTextFor', 'ungroup', 'infixNotation','locatedExpr', 'withClass',
+'CloseMatch', 'tokenMap', 'pyparsing_common',
+]
+
+system_version = tuple(sys.version_info)[:3]
+PY_3 = system_version[0] == 3
+if PY_3:
+    _MAX_INT = sys.maxsize
+    basestring = str
+    unichr = chr
+    _ustr = str
+
+    # build list of single arg builtins, that can be used as parse actions
+    singleArgBuiltins = [sum, len, sorted, reversed, list, tuple, set, any, all, min, max]
+
+else:
+    _MAX_INT = sys.maxint
+    range = xrange
+
+    def _ustr(obj):
+        """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
+           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
+           then < returns the unicode object | encodes it with the default encoding | ... >.
+        """
+        if isinstance(obj,unicode):
+            return obj
+
+        try:
+            # If this works, then _ustr(obj) has the same behaviour as str(obj), so
+            # it won't break any existing code.
+            return str(obj)
+
+        except UnicodeEncodeError:
+            # Else encode it
+            ret = unicode(obj).encode(sys.getdefaultencoding(), 'xmlcharrefreplace')
+            xmlcharref = Regex('&#\d+;')
+            xmlcharref.setParseAction(lambda t: '\\u' + hex(int(t[0][2:-1]))[2:])
+            return xmlcharref.transformString(ret)
+
+    # build list of single arg builtins, tolerant of Python version, that can be used as parse actions
+    singleArgBuiltins = []
+    import __builtin__
+    for fname in "sum len sorted reversed list tuple set any all min max".split():
+        try:
+            singleArgBuiltins.append(getattr(__builtin__,fname))
+        except AttributeError:
+            continue
+            
+_generatorType = type((y for y in range(1)))
+ 
+def _xml_escape(data):
+    """Escape &, <, >, ", ', etc. in a string of data."""
+
+    # ampersand must be replaced first
+    from_symbols = '&><"\''
+    to_symbols = ('&'+s+';' for s in "amp gt lt quot apos".split())
+    for from_,to_ in zip(from_symbols, to_symbols):
+        data = data.replace(from_, to_)
+    return data
+
+class _Constants(object):
+    pass
+
+alphas     = string.ascii_uppercase + string.ascii_lowercase
+nums       = "0123456789"
+hexnums    = nums + "ABCDEFabcdef"
+alphanums  = alphas + nums
+_bslash    = chr(92)
+printables = "".join(c for c in string.printable if c not in string.whitespace)
+
+class ParseBaseException(Exception):
+    """base exception class for all parsing runtime exceptions"""
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, pstr, loc=0, msg=None, elem=None ):
+        self.loc = loc
+        if msg is None:
+            self.msg = pstr
+            self.pstr = ""
+        else:
+            self.msg = msg
+            self.pstr = pstr
+        self.parserElement = elem
+        self.args = (pstr, loc, msg)
+
+    @classmethod
+    def _from_exception(cls, pe):
+        """
+        internal factory method to simplify creating one type of ParseException 
+        from another - avoids having __init__ signature conflicts among subclasses
+        """
+        return cls(pe.pstr, pe.loc, pe.msg, pe.parserElement)
+
+    def __getattr__( self, aname ):
+        """supported attributes by name are:
+            - lineno - returns the line number of the exception text
+            - col - returns the column number of the exception text
+            - line - returns the line containing the exception text
+        """
+        if( aname == "lineno" ):
+            return lineno( self.loc, self.pstr )
+        elif( aname in ("col", "column") ):
+            return col( self.loc, self.pstr )
+        elif( aname == "line" ):
+            return line( self.loc, self.pstr )
+        else:
+            raise AttributeError(aname)
+
+    def __str__( self ):
+        return "%s (at char %d), (line:%d, col:%d)" % \
+                ( self.msg, self.loc, self.lineno, self.column )
+    def __repr__( self ):
+        return _ustr(self)
+    def markInputline( self, markerString = ">!<" ):
+        """Extracts the exception line from the input string, and marks
+           the location of the exception with a special symbol.
+        """
+        line_str = self.line
+        line_column = self.column - 1
+        if markerString:
+            line_str = "".join((line_str[:line_column],
+                                markerString, line_str[line_column:]))
+        return line_str.strip()
+    def __dir__(self):
+        return "lineno col line".split() + dir(type(self))
+
+class ParseException(ParseBaseException):
+    """
+    Exception thrown when parse expressions don't match class;
+    supported attributes by name are:
+     - lineno - returns the line number of the exception text
+     - col - returns the column number of the exception text
+     - line - returns the line containing the exception text
+        
+    Example::
+        try:
+            Word(nums).setName("integer").parseString("ABC")
+        except ParseException as pe:
+            print(pe)
+            print("column: {}".format(pe.col))
+            
+    prints::
+       Expected integer (at char 0), (line:1, col:1)
+        column: 1
+    """
+    pass
+
+class ParseFatalException(ParseBaseException):
+    """user-throwable exception thrown when inconsistent parse content
+       is found; stops all parsing immediately"""
+    pass
+
+class ParseSyntaxException(ParseFatalException):
+    """just like L{ParseFatalException}, but thrown internally when an
+       L{ErrorStop<And._ErrorStop>} ('-' operator) indicates that parsing is to stop 
+       immediately because an unbacktrackable syntax error has been found"""
+    pass
+
+#~ class ReparseException(ParseBaseException):
+    #~ """Experimental class - parse actions can raise this exception to cause
+       #~ pyparsing to reparse the input string:
+        #~ - with a modified input string, and/or
+        #~ - with a modified start location
+       #~ Set the values of the ReparseException in the constructor, and raise the
+       #~ exception in a parse action to cause pyparsing to use the new string/location.
+       #~ Setting the values as None causes no change to be made.
+       #~ """
+    #~ def __init_( self, newstring, restartLoc ):
+        #~ self.newParseText = newstring
+        #~ self.reparseLoc = restartLoc
+
+class RecursiveGrammarException(Exception):
+    """exception thrown by L{ParserElement.validate} if the grammar could be improperly recursive"""
+    def __init__( self, parseElementList ):
+        self.parseElementTrace = parseElementList
+
+    def __str__( self ):
+        return "RecursiveGrammarException: %s" % self.parseElementTrace
+
+class _ParseResultsWithOffset(object):
+    def __init__(self,p1,p2):
+        self.tup = (p1,p2)
+    def __getitem__(self,i):
+        return self.tup[i]
+    def __repr__(self):
+        return repr(self.tup[0])
+    def setOffset(self,i):
+        self.tup = (self.tup[0],i)
+
+class ParseResults(object):
+    """
+    Structured parse results, to provide multiple means of access to the parsed data:
+       - as a list (C{len(results)})
+       - by list index (C{results[0], results[1]}, etc.)
+       - by attribute (C{results.<resultsName>} - see L{ParserElement.setResultsName})
+
+    Example::
+        integer = Word(nums)
+        date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+        # equivalent form:
+        # date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+
+        # parseString returns a ParseResults object
+        result = date_str.parseString("1999/12/31")
+
+        def test(s, fn=repr):
+            print("%s -> %s" % (s, fn(eval(s))))
+        test("list(result)")
+        test("result[0]")
+        test("result['month']")
+        test("result.day")
+        test("'month' in result")
+        test("'minutes' in result")
+        test("result.dump()", str)
+    prints::
+        list(result) -> ['1999', '/', '12', '/', '31']
+        result[0] -> '1999'
+        result['month'] -> '12'
+        result.day -> '31'
+        'month' in result -> True
+        'minutes' in result -> False
+        result.dump() -> ['1999', '/', '12', '/', '31']
+        - day: 31
+        - month: 12
+        - year: 1999
+    """
+    def __new__(cls, toklist=None, name=None, asList=True, modal=True ):
+        if isinstance(toklist, cls):
+            return toklist
+        retobj = object.__new__(cls)
+        retobj.__doinit = True
+        return retobj
+
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, toklist=None, name=None, asList=True, modal=True, isinstance=isinstance ):
+        if self.__doinit:
+            self.__doinit = False
+            self.__name = None
+            self.__parent = None
+            self.__accumNames = {}
+            self.__asList = asList
+            self.__modal = modal
+            if toklist is None:
+                toklist = []
+            if isinstance(toklist, list):
+                self.__toklist = toklist[:]
+            elif isinstance(toklist, _generatorType):
+                self.__toklist = list(toklist)
+            else:
+                self.__toklist = [toklist]
+            self.__tokdict = dict()
+
+        if name is not None and name:
+            if not modal:
+                self.__accumNames[name] = 0
+            if isinstance(name,int):
+                name = _ustr(name) # will always return a str, but use _ustr for consistency
+            self.__name = name
+            if not (isinstance(toklist, (type(None), basestring, list)) and toklist in (None,'',[])):
+                if isinstance(toklist,basestring):
+                    toklist = [ toklist ]
+                if asList:
+                    if isinstance(toklist,ParseResults):
+                        self[name] = _ParseResultsWithOffset(toklist.copy(),0)
+                    else:
+                        self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
+                    self[name].__name = name
+                else:
+                    try:
+                        self[name] = toklist[0]
+                    except (KeyError,TypeError,IndexError):
+                        self[name] = toklist
+
+    def __getitem__( self, i ):
+        if isinstance( i, (int,slice) ):
+            return self.__toklist[i]
+        else:
+            if i not in self.__accumNames:
+                return self.__tokdict[i][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[i] ])
+
+    def __setitem__( self, k, v, isinstance=isinstance ):
+        if isinstance(v,_ParseResultsWithOffset):
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
+            sub = v[0]
+        elif isinstance(k,(int,slice)):
+            self.__toklist[k] = v
+            sub = v
+        else:
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
+            sub = v
+        if isinstance(sub,ParseResults):
+            sub.__parent = wkref(self)
+
+    def __delitem__( self, i ):
+        if isinstance(i,(int,slice)):
+            mylen = len( self.__toklist )
+            del self.__toklist[i]
+
+            # convert int to slice
+            if isinstance(i, int):
+                if i < 0:
+                    i += mylen
+                i = slice(i, i+1)
+            # get removed indices
+            removed = list(range(*i.indices(mylen)))
+            removed.reverse()
+            # fixup indices in token dictionary
+            for name,occurrences in self.__tokdict.items():
+                for j in removed:
+                    for k, (value, position) in enumerate(occurrences):
+                        occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
+        else:
+            del self.__tokdict[i]
+
+    def __contains__( self, k ):
+        return k in self.__tokdict
+
+    def __len__( self ): return len( self.__toklist )
+    def __bool__(self): return ( not not self.__toklist )
+    __nonzero__ = __bool__
+    def __iter__( self ): return iter( self.__toklist )
+    def __reversed__( self ): return iter( self.__toklist[::-1] )
+    def _iterkeys( self ):
+        if hasattr(self.__tokdict, "iterkeys"):
+            return self.__tokdict.iterkeys()
+        else:
+            return iter(self.__tokdict)
+
+    def _itervalues( self ):
+        return (self[k] for k in self._iterkeys())
+            
+    def _iteritems( self ):
+        return ((k, self[k]) for k in self._iterkeys())
+
+    if PY_3:
+        keys = _iterkeys       
+        """Returns an iterator of all named result keys (Python 3.x only)."""
+
+        values = _itervalues
+        """Returns an iterator of all named result values (Python 3.x only)."""
+
+        items = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 3.x only)."""
+
+    else:
+        iterkeys = _iterkeys
+        """Returns an iterator of all named result keys (Python 2.x only)."""
+
+        itervalues = _itervalues
+        """Returns an iterator of all named result values (Python 2.x only)."""
+
+        iteritems = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 2.x only)."""
+
+        def keys( self ):
+            """Returns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iterkeys())
+
+        def values( self ):
+            """Returns all named result values (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.itervalues())
+                
+        def items( self ):
+            """Returns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iteritems())
+
+    def haskeys( self ):
+        """Since keys() returns an iterator, this method is helpful in bypassing
+           code that looks for the existence of any defined results names."""
+        return bool(self.__tokdict)
+        
+    def pop( self, *args, **kwargs):
+        """
+        Removes and returns item at specified index (default=C{last}).
+        Supports both C{list} and C{dict} semantics for C{pop()}. If passed no
+        argument or an integer argument, it will use C{list} semantics
+        and pop tokens from the list of parsed tokens. If passed a 
+        non-integer argument (most likely a string), it will use C{dict}
+        semantics and pop the corresponding value from any defined 
+        results names. A second default return value argument is 
+        supported, just as in C{dict.pop()}.
+
+        Example::
+            def remove_first(tokens):
+                tokens.pop(0)
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321']
+
+            label = Word(alphas)
+            patt = label("LABEL") + OneOrMore(Word(nums))
+            print(patt.parseString("AAB 123 321").dump())
+
+            # Use pop() in a parse action to remove named result (note that corresponding value is not
+            # removed from list form of results)
+            def remove_LABEL(tokens):
+                tokens.pop("LABEL")
+                return tokens
+            patt.addParseAction(remove_LABEL)
+            print(patt.parseString("AAB 123 321").dump())
+        prints::
+            ['AAB', '123', '321']
+            - LABEL: AAB
+
+            ['AAB', '123', '321']
+        """
+        if not args:
+            args = [-1]
+        for k,v in kwargs.items():
+            if k == 'default':
+                args = (args[0], v)
+            else:
+                raise TypeError("pop() got an unexpected keyword argument '%s'" % k)
+        if (isinstance(args[0], int) or 
+                        len(args) == 1 or 
+                        args[0] in self):
+            index = args[0]
+            ret = self[index]
+            del self[index]
+            return ret
+        else:
+            defaultvalue = args[1]
+            return defaultvalue
+
+    def get(self, key, defaultValue=None):
+        """
+        Returns named result matching the given key, or if there is no
+        such name, then returns the given C{defaultValue} or C{None} if no
+        C{defaultValue} is specified.
+
+        Similar to C{dict.get()}.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            result = date_str.parseString("1999/12/31")
+            print(result.get("year")) # -> '1999'
+            print(result.get("hour", "not specified")) # -> 'not specified'
+            print(result.get("hour")) # -> None
+        """
+        if key in self:
+            return self[key]
+        else:
+            return defaultValue
+
+    def insert( self, index, insStr ):
+        """
+        Inserts new element at location index in the list of parsed tokens.
+        
+        Similar to C{list.insert()}.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+
+            # use a parse action to insert the parse location in the front of the parsed results
+            def insert_locn(locn, tokens):
+                tokens.insert(0, locn)
+            print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321']
+        """
+        self.__toklist.insert(index, insStr)
+        # fixup indices in token dictionary
+        for name,occurrences in self.__tokdict.items():
+            for k, (value, position) in enumerate(occurrences):
+                occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
+
+    def append( self, item ):
+        """
+        Add single element to end of ParseResults list of elements.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            
+            # use a parse action to compute the sum of the parsed integers, and add it to the end
+            def append_sum(tokens):
+                tokens.append(sum(map(int, tokens)))
+            print(OneOrMore(Word(nums)).addParseAction(append_sum).parseString("0 123 321")) # -> ['0', '123', '321', 444]
+        """
+        self.__toklist.append(item)
+
+    def extend( self, itemseq ):
+        """
+        Add sequence of elements to end of ParseResults list of elements.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            
+            # use a parse action to append the reverse of the matched strings, to make a palindrome
+            def make_palindrome(tokens):
+                tokens.extend(reversed([t[::-1] for t in tokens]))
+                return ''.join(tokens)
+            print(patt.addParseAction(make_palindrome).parseString("lskdj sdlkjf lksd")) # -> 'lskdjsdlkjflksddsklfjkldsjdksl'
+        """
+        if isinstance(itemseq, ParseResults):
+            self += itemseq
+        else:
+            self.__toklist.extend(itemseq)
+
+    def clear( self ):
+        """
+        Clear all elements and results names.
+        """
+        del self.__toklist[:]
+        self.__tokdict.clear()
+
+    def __getattr__( self, name ):
+        try:
+            return self[name]
+        except KeyError:
+            return ""
+            
+        if name in self.__tokdict:
+            if name not in self.__accumNames:
+                return self.__tokdict[name][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[name] ])
+        else:
+            return ""
+
+    def __add__( self, other ):
+        ret = self.copy()
+        ret += other
+        return ret
+
+    def __iadd__( self, other ):
+        if other.__tokdict:
+            offset = len(self.__toklist)
+            addoffset = lambda a: offset if a<0 else a+offset
+            otheritems = other.__tokdict.items()
+            otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
+                                for (k,vlist) in otheritems for v in vlist]
+            for k,v in otherdictitems:
+                self[k] = v
+                if isinstance(v[0],ParseResults):
+                    v[0].__parent = wkref(self)
+            
+        self.__toklist += other.__toklist
+        self.__accumNames.update( other.__accumNames )
+        return self
+
+    def __radd__(self, other):
+        if isinstance(other,int) and other == 0:
+            # useful for merging many ParseResults using sum() builtin
+            return self.copy()
+        else:
+            # this may raise a TypeError - so be it
+            return other + self
+        
+    def __repr__( self ):
+        return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
+
+    def __str__( self ):
+        return '[' + ', '.join(_ustr(i) if isinstance(i, ParseResults) else repr(i) for i in self.__toklist) + ']'
+
+    def _asStringList( self, sep='' ):
+        out = []
+        for item in self.__toklist:
+            if out and sep:
+                out.append(sep)
+            if isinstance( item, ParseResults ):
+                out += item._asStringList()
+            else:
+                out.append( _ustr(item) )
+        return out
+
+    def asList( self ):
+        """
+        Returns the parse results as a nested list of matching tokens, all converted to strings.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            result = patt.parseString("sldkj lsdkj sldkj")
+            # even though the result prints in string-like form, it is actually a pyparsing ParseResults
+            print(type(result), result) # -> <class 'pyparsing.ParseResults'> ['sldkj', 'lsdkj', 'sldkj']
+            
+            # Use asList() to create an actual list
+            result_list = result.asList()
+            print(type(result_list), result_list) # -> <class 'list'> ['sldkj', 'lsdkj', 'sldkj']
+        """
+        return [res.asList() if isinstance(res,ParseResults) else res for res in self.__toklist]
+
+    def asDict( self ):
+        """
+        Returns the named parse results as a nested dictionary.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(type(result), repr(result)) # -> <class 'pyparsing.ParseResults'> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]})
+            
+            result_dict = result.asDict()
+            print(type(result_dict), repr(result_dict)) # -> <class 'dict'> {'day': '1999', 'year': '12', 'month': '31'}
+
+            # even though a ParseResults supports dict-like access, sometime you just need to have a dict
+            import json
+            print(json.dumps(result)) # -> Exception: TypeError: ... is not JSON serializable
+            print(json.dumps(result.asDict())) # -> {"month": "31", "day": "1999", "year": "12"}
+        """
+        if PY_3:
+            item_fn = self.items
+        else:
+            item_fn = self.iteritems
+            
+        def toItem(obj):
+            if isinstance(obj, ParseResults):
+                if obj.haskeys():
+                    return obj.asDict()
+                else:
+                    return [toItem(v) for v in obj]
+            else:
+                return obj
+                
+        return dict((k,toItem(v)) for k,v in item_fn())
+
+    def copy( self ):
+        """
+        Returns a new copy of a C{ParseResults} object.
+        """
+        ret = ParseResults( self.__toklist )
+        ret.__tokdict = self.__tokdict.copy()
+        ret.__parent = self.__parent
+        ret.__accumNames.update( self.__accumNames )
+        ret.__name = self.__name
+        return ret
+
+    def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
+        """
+        (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names.
+        """
+        nl = "\n"
+        out = []
+        namedItems = dict((v[1],k) for (k,vlist) in self.__tokdict.items()
+                                                            for v in vlist)
+        nextLevelIndent = indent + "  "
+
+        # collapse out indents if formatting is not desired
+        if not formatted:
+            indent = ""
+            nextLevelIndent = ""
+            nl = ""
+
+        selfTag = None
+        if doctag is not None:
+            selfTag = doctag
+        else:
+            if self.__name:
+                selfTag = self.__name
+
+        if not selfTag:
+            if namedItemsOnly:
+                return ""
+            else:
+                selfTag = "ITEM"
+
+        out += [ nl, indent, "<", selfTag, ">" ]
+
+        for i,res in enumerate(self.__toklist):
+            if isinstance(res,ParseResults):
+                if i in namedItems:
+                    out += [ res.asXML(namedItems[i],
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+                else:
+                    out += [ res.asXML(None,
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+            else:
+                # individual token, see if there is a name for it
+                resTag = None
+                if i in namedItems:
+                    resTag = namedItems[i]
+                if not resTag:
+                    if namedItemsOnly:
+                        continue
+                    else:
+                        resTag = "ITEM"
+                xmlBodyText = _xml_escape(_ustr(res))
+                out += [ nl, nextLevelIndent, "<", resTag, ">",
+                                                xmlBodyText,
+                                                "</", resTag, ">" ]
+
+        out += [ nl, indent, "</", selfTag, ">" ]
+        return "".join(out)
+
+    def __lookup(self,sub):
+        for k,vlist in self.__tokdict.items():
+            for v,loc in vlist:
+                if sub is v:
+                    return k
+        return None
+
+    def getName(self):
+        """
+        Returns the results name for this token expression. Useful when several 
+        different expressions might match at a particular location.
+
+        Example::
+            integer = Word(nums)
+            ssn_expr = Regex(r"\d\d\d-\d\d-\d\d\d\d")
+            house_number_expr = Suppress('#') + Word(nums, alphanums)
+            user_data = (Group(house_number_expr)("house_number") 
+                        | Group(ssn_expr)("ssn")
+                        | Group(integer)("age"))
+            user_info = OneOrMore(user_data)
+            
+            result = user_info.parseString("22 111-22-3333 #221B")
+            for item in result:
+                print(item.getName(), ':', item[0])
+        prints::
+            age : 22
+            ssn : 111-22-3333
+            house_number : 221B
+        """
+        if self.__name:
+            return self.__name
+        elif self.__parent:
+            par = self.__parent()
+            if par:
+                return par.__lookup(self)
+            else:
+                return None
+        elif (len(self) == 1 and
+               len(self.__tokdict) == 1 and
+               next(iter(self.__tokdict.values()))[0][1] in (0,-1)):
+            return next(iter(self.__tokdict.keys()))
+        else:
+            return None
+
+    def dump(self, indent='', depth=0, full=True):
+        """
+        Diagnostic method for listing out the contents of a C{ParseResults}.
+        Accepts an optional C{indent} argument so that this string can be embedded
+        in a nested display of other data.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(result.dump())
+        prints::
+            ['12', '/', '31', '/', '1999']
+            - day: 1999
+            - month: 31
+            - year: 12
+        """
+        out = []
+        NL = '\n'
+        out.append( indent+_ustr(self.asList()) )
+        if full:
+            if self.haskeys():
+                items = sorted((str(k), v) for k,v in self.items())
+                for k,v in items:
+                    if out:
+                        out.append(NL)
+                    out.append( "%s%s- %s: " % (indent,('  '*depth), k) )
+                    if isinstance(v,ParseResults):
+                        if v:
+                            out.append( v.dump(indent,depth+1) )
+                        else:
+                            out.append(_ustr(v))
+                    else:
+                        out.append(repr(v))
+            elif any(isinstance(vv,ParseResults) for vv in self):
+                v = self
+                for i,vv in enumerate(v):
+                    if isinstance(vv,ParseResults):
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),vv.dump(indent,depth+1) ))
+                    else:
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),_ustr(vv)))
+            
+        return "".join(out)
+
+    def pprint(self, *args, **kwargs):
+        """
+        Pretty-printer for parsed results as a list, using the C{pprint} module.
+        Accepts additional positional or keyword args as defined for the 
+        C{pprint.pprint} method. (U{http://docs.python.org/3/library/pprint.html#pprint.pprint})
+
+        Example::
+            ident = Word(alphas, alphanums)
+            num = Word(nums)
+            func = Forward()
+            term = ident | num | Group('(' + func + ')')
+            func <<= ident + Group(Optional(delimitedList(term)))
+            result = func.parseString("fna a,b,(fnb c,d,200),100")
+            result.pprint(width=40)
+        prints::
+            ['fna',
+             ['a',
+              'b',
+              ['(', 'fnb', ['c', 'd', '200'], ')'],
+              '100']]
+        """
+        pprint.pprint(self.asList(), *args, **kwargs)
+
+    # add support for pickle protocol
+    def __getstate__(self):
+        return ( self.__toklist,
+                 ( self.__tokdict.copy(),
+                   self.__parent is not None and self.__parent() or None,
+                   self.__accumNames,
+                   self.__name ) )
+
+    def __setstate__(self,state):
+        self.__toklist = state[0]
+        (self.__tokdict,
+         par,
+         inAccumNames,
+         self.__name) = state[1]
+        self.__accumNames = {}
+        self.__accumNames.update(inAccumNames)
+        if par is not None:
+            self.__parent = wkref(par)
+        else:
+            self.__parent = None
+
+    def __getnewargs__(self):
+        return self.__toklist, self.__name, self.__asList, self.__modal
+
+    def __dir__(self):
+        return (dir(type(self)) + list(self.keys()))
+
+collections.MutableMapping.register(ParseResults)
+
+def col (loc,strg):
+    """Returns current column within a string, counting newlines as line separators.
+   The first column is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    s = strg
+    return 1 if 0<loc<len(s) and s[loc-1] == '\n' else loc - s.rfind("\n", 0, loc)
+
+def lineno(loc,strg):
+    """Returns current line number within a string, counting newlines as line separators.
+   The first line is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return strg.count("\n",0,loc) + 1
+
+def line( loc, strg ):
+    """Returns the line of text containing loc within a string, counting newlines as line separators.
+       """
+    lastCR = strg.rfind("\n", 0, loc)
+    nextCR = strg.find("\n", loc)
+    if nextCR >= 0:
+        return strg[lastCR+1:nextCR]
+    else:
+        return strg[lastCR+1:]
+
+def _defaultStartDebugAction( instring, loc, expr ):
+    print (("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) )))
+
+def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
+    print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
+
+def _defaultExceptionDebugAction( instring, loc, expr, exc ):
+    print ("Exception raised:" + _ustr(exc))
+
+def nullDebugAction(*args):
+    """'Do-nothing' debug action, to suppress debugging output during parsing."""
+    pass
+
+# Only works on Python 3.x - nonlocal is toxic to Python 2 installs
+#~ 'decorator to trim function calls to match the arity of the target'
+#~ def _trim_arity(func, maxargs=3):
+    #~ if func in singleArgBuiltins:
+        #~ return lambda s,l,t: func(t)
+    #~ limit = 0
+    #~ foundArity = False
+    #~ def wrapper(*args):
+        #~ nonlocal limit,foundArity
+        #~ while 1:
+            #~ try:
+                #~ ret = func(*args[limit:])
+                #~ foundArity = True
+                #~ return ret
+            #~ except TypeError:
+                #~ if limit == maxargs or foundArity:
+                    #~ raise
+                #~ limit += 1
+                #~ continue
+    #~ return wrapper
+
+# this version is Python 2.x-3.x cross-compatible
+'decorator to trim function calls to match the arity of the target'
+def _trim_arity(func, maxargs=2):
+    if func in singleArgBuiltins:
+        return lambda s,l,t: func(t)
+    limit = [0]
+    foundArity = [False]
+    
+    # traceback return data structure changed in Py3.5 - normalize back to plain tuples
+    if system_version[:2] >= (3,5):
+        def extract_stack(limit=0):
+            # special handling for Python 3.5.0 - extra deep call stack by 1
+            offset = -3 if system_version == (3,5,0) else -2
+            frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
+            return [(frame_summary.filename, frame_summary.lineno)]
+        def extract_tb(tb, limit=0):
+            frames = traceback.extract_tb(tb, limit=limit)
+            frame_summary = frames[-1]
+            return [(frame_summary.filename, frame_summary.lineno)]
+    else:
+        extract_stack = traceback.extract_stack
+        extract_tb = traceback.extract_tb
+    
+    # synthesize what would be returned by traceback.extract_stack at the call to 
+    # user's parse action 'func', so that we don't incur call penalty at parse time
+    
+    LINE_DIFF = 6
+    # IF ANY CODE CHANGES, EVEN JUST COMMENTS OR BLANK LINES, BETWEEN THE NEXT LINE AND 
+    # THE CALL TO FUNC INSIDE WRAPPER, LINE_DIFF MUST BE MODIFIED!!!!
+    this_line = extract_stack(limit=2)[-1]
+    pa_call_line_synth = (this_line[0], this_line[1]+LINE_DIFF)
+
+    def wrapper(*args):
+        while 1:
+            try:
+                ret = func(*args[limit[0]:])
+                foundArity[0] = True
+                return ret
+            except TypeError:
+                # re-raise TypeErrors if they did not come from our arity testing
+                if foundArity[0]:
+                    raise
+                else:
+                    try:
+                        tb = sys.exc_info()[-1]
+                        if not extract_tb(tb, limit=2)[-1][:2] == pa_call_line_synth:
+                            raise
+                    finally:
+                        del tb
+
+                if limit[0] <= maxargs:
+                    limit[0] += 1
+                    continue
+                raise
+
+    # copy func name to wrapper for sensible debug output
+    func_name = "<parse action>"
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    wrapper.__name__ = func_name
+
+    return wrapper
+
+class ParserElement(object):
+    """Abstract base level parser element class."""
+    DEFAULT_WHITE_CHARS = " \n\t\r"
+    verbose_stacktrace = False
+
+    @staticmethod
+    def setDefaultWhitespaceChars( chars ):
+        r"""
+        Overrides the default whitespace chars
+
+        Example::
+            # default whitespace chars are space, <TAB> and newline
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def', 'ghi', 'jkl']
+            
+            # change to just treat newline as significant
+            ParserElement.setDefaultWhitespaceChars(" \t")
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def']
+        """
+        ParserElement.DEFAULT_WHITE_CHARS = chars
+
+    @staticmethod
+    def inlineLiteralsUsing(cls):
+        """
+        Set class to be used for inclusion of string literals into a parser.
+        
+        Example::
+            # default literal class used is Literal
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+
+            # change to Suppress
+            ParserElement.inlineLiteralsUsing(Suppress)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '12', '31']
+        """
+        ParserElement._literalStringClass = cls
+
+    def __init__( self, savelist=False ):
+        self.parseAction = list()
+        self.failAction = None
+        #~ self.name = "<unknown>"  # don't define self.name, let subclasses try/except upcall
+        self.strRepr = None
+        self.resultsName = None
+        self.saveAsList = savelist
+        self.skipWhitespace = True
+        self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        self.copyDefaultWhiteChars = True
+        self.mayReturnEmpty = False # used when checking for left-recursion
+        self.keepTabs = False
+        self.ignoreExprs = list()
+        self.debug = False
+        self.streamlined = False
+        self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
+        self.errmsg = ""
+        self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
+        self.debugActions = ( None, None, None ) #custom debug actions
+        self.re = None
+        self.callPreparse = True # used to avoid redundant calls to preParse
+        self.callDuringTry = False
+
+    def copy( self ):
+        """
+        Make a copy of this C{ParserElement}.  Useful for defining different parse actions
+        for the same parsing pattern, using copies of the original parse element.
+        
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
+            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+            
+            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))
+        prints::
+            [5120, 100, 655360, 268435456]
+        Equivalent form of C{expr.copy()} is just C{expr()}::
+            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+        """
+        cpy = copy.copy( self )
+        cpy.parseAction = self.parseAction[:]
+        cpy.ignoreExprs = self.ignoreExprs[:]
+        if self.copyDefaultWhiteChars:
+            cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        return cpy
+
+    def setName( self, name ):
+        """
+        Define name for this expression, makes debugging and exception messages clearer.
+        
+        Example::
+            Word(nums).parseString("ABC")  # -> Exception: Expected W:(0123...) (at char 0), (line:1, col:1)
+            Word(nums).setName("integer").parseString("ABC")  # -> Exception: Expected integer (at char 0), (line:1, col:1)
+        """
+        self.name = name
+        self.errmsg = "Expected " + self.name
+        if hasattr(self,"exception"):
+            self.exception.msg = self.errmsg
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        """
+        Define name for referencing matching tokens as a nested attribute
+        of the returned parse results.
+        NOTE: this returns a *copy* of the original C{ParserElement} object;
+        this is so that the client can define a basic element, such as an
+        integer, and reference it in multiple places with different names.
+
+        You can also set results names using the abbreviated syntax,
+        C{expr("name")} in place of C{expr.setResultsName("name")} - 
+        see L{I{__call__}<__call__>}.
+
+        Example::
+            date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+
+            # equivalent form:
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+        """
+        newself = self.copy()
+        if name.endswith("*"):
+            name = name[:-1]
+            listAllMatches=True
+        newself.resultsName = name
+        newself.modalResults = not listAllMatches
+        return newself
+
+    def setBreak(self,breakFlag = True):
+        """Method to invoke the Python pdb debugger when this element is
+           about to be parsed. Set C{breakFlag} to True to enable, False to
+           disable.
+        """
+        if breakFlag:
+            _parseMethod = self._parse
+            def breaker(instring, loc, doActions=True, callPreParse=True):
+                import pdb
+                pdb.set_trace()
+                return _parseMethod( instring, loc, doActions, callPreParse )
+            breaker._originalParseMethod = _parseMethod
+            self._parse = breaker
+        else:
+            if hasattr(self._parse,"_originalParseMethod"):
+                self._parse = self._parse._originalParseMethod
+        return self
+
+    def setParseAction( self, *fns, **kwargs ):
+        """
+        Define action to perform when successfully matching parse element definition.
+        Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
+        C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
+         - s   = the original string being parsed (see note below)
+         - loc = the location of the matching substring
+         - toks = a list of the matched tokens, packaged as a C{L{ParseResults}} object
+        If the functions in fns modify the tokens, they can return them as the return
+        value from fn, and the modified list of tokens will replace the original.
+        Otherwise, fn does not need to return any value.
+
+        Optional keyword arguments:
+         - callDuringTry = (default=C{False}) indicate if parse action should be run during lookaheads and alternate testing
+
+        Note: the default parsing behavior is to expand tabs in the input string
+        before starting the parsing process.  See L{I{parseString}<parseString>} for more information
+        on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+        consistent view of the parsed string, the parse location, and line and column
+        positions within the parsed string.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer + '/' + integer + '/' + integer
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+            # use parse action to convert to ints at parse time
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            date_str = integer + '/' + integer + '/' + integer
+
+            # note that integer fields are now ints, not strings
+            date_str.parseString("1999/12/31")  # -> [1999, '/', 12, '/', 31]
+        """
+        self.parseAction = list(map(_trim_arity, list(fns)))
+        self.callDuringTry = kwargs.get("callDuringTry", False)
+        return self
+
+    def addParseAction( self, *fns, **kwargs ):
+        """
+        Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}.
+        
+        See examples in L{I{copy}<copy>}.
+        """
+        self.parseAction += list(map(_trim_arity, list(fns)))
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def addCondition(self, *fns, **kwargs):
+        """Add a boolean predicate function to expression's list of parse actions. See 
+        L{I{setParseAction}<setParseAction>} for function call signatures. Unlike C{setParseAction}, 
+        functions passed to C{addCondition} need to return boolean success/fail of the condition.
+
+        Optional keyword arguments:
+         - message = define a custom message to be used in the raised exception
+         - fatal   = if True, will raise ParseFatalException to stop parsing immediately; otherwise will raise ParseException
+         
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            year_int = integer.copy()
+            year_int.addCondition(lambda toks: toks[0] >= 2000, message="Only support years 2000 and later")
+            date_str = year_int + '/' + integer + '/' + integer
+
+            result = date_str.parseString("1999/12/31")  # -> Exception: Only support years 2000 and later (at char 0), (line:1, col:1)
+        """
+        msg = kwargs.get("message", "failed user-defined condition")
+        exc_type = ParseFatalException if kwargs.get("fatal", False) else ParseException
+        for fn in fns:
+            def pa(s,l,t):
+                if not bool(_trim_arity(fn)(s,l,t)):
+                    raise exc_type(s,l,msg)
+            self.parseAction.append(pa)
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def setFailAction( self, fn ):
+        """Define action to perform if parsing fails at this expression.
+           Fail acton fn is a callable function that takes the arguments
+           C{fn(s,loc,expr,err)} where:
+            - s = string being parsed
+            - loc = location where expression match was attempted and failed
+            - expr = the parse expression that failed
+            - err = the exception thrown
+           The function returns no value.  It may throw C{L{ParseFatalException}}
+           if it is desired to stop parsing immediately."""
+        self.failAction = fn
+        return self
+
+    def _skipIgnorables( self, instring, loc ):
+        exprsFound = True
+        while exprsFound:
+            exprsFound = False
+            for e in self.ignoreExprs:
+                try:
+                    while 1:
+                        loc,dummy = e._parse( instring, loc )
+                        exprsFound = True
+                except ParseException:
+                    pass
+        return loc
+
+    def preParse( self, instring, loc ):
+        if self.ignoreExprs:
+            loc = self._skipIgnorables( instring, loc )
+
+        if self.skipWhitespace:
+            wt = self.whiteChars
+            instrlen = len(instring)
+            while loc < instrlen and instring[loc] in wt:
+                loc += 1
+
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        return loc, []
+
+    def postParse( self, instring, loc, tokenlist ):
+        return tokenlist
+
+    #~ @profile
+    def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
+        debugging = ( self.debug ) #and doActions )
+
+        if debugging or self.failAction:
+            #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+            if (self.debugActions[0] ):
+                self.debugActions[0]( instring, loc, self )
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            try:
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            except ParseBaseException as err:
+                #~ print ("Exception raised:", err)
+                if self.debugActions[2]:
+                    self.debugActions[2]( instring, tokensStart, self, err )
+                if self.failAction:
+                    self.failAction( instring, tokensStart, self, err )
+                raise
+        else:
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            if self.mayIndexError or loc >= len(instring):
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            else:
+                loc,tokens = self.parseImpl( instring, preloc, doActions )
+
+        tokens = self.postParse( instring, loc, tokens )
+
+        retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
+        if self.parseAction and (doActions or self.callDuringTry):
+            if debugging:
+                try:
+                    for fn in self.parseAction:
+                        tokens = fn( instring, tokensStart, retTokens )
+                        if tokens is not None:
+                            retTokens = ParseResults( tokens,
+                                                      self.resultsName,
+                                                      asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                      modal=self.modalResults )
+                except ParseBaseException as err:
+                    #~ print "Exception raised in user parse action:", err
+                    if (self.debugActions[2] ):
+                        self.debugActions[2]( instring, tokensStart, self, err )
+                    raise
+            else:
+                for fn in self.parseAction:
+                    tokens = fn( instring, tokensStart, retTokens )
+                    if tokens is not None:
+                        retTokens = ParseResults( tokens,
+                                                  self.resultsName,
+                                                  asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                  modal=self.modalResults )
+
+        if debugging:
+            #~ print ("Matched",self,"->",retTokens.asList())
+            if (self.debugActions[1] ):
+                self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
+
+        return loc, retTokens
+
+    def tryParse( self, instring, loc ):
+        try:
+            return self._parse( instring, loc, doActions=False )[0]
+        except ParseFatalException:
+            raise ParseException( instring, loc, self.errmsg, self)
+    
+    def canParseNext(self, instring, loc):
+        try:
+            self.tryParse(instring, loc)
+        except (ParseException, IndexError):
+            return False
+        else:
+            return True
+
+    class _UnboundedCache(object):
+        def __init__(self):
+            cache = {}
+            self.not_in_cache = not_in_cache = object()
+
+            def get(self, key):
+                return cache.get(key, not_in_cache)
+
+            def set(self, key, value):
+                cache[key] = value
+
+            def clear(self):
+                cache.clear()
+
+            self.get = types.MethodType(get, self)
+            self.set = types.MethodType(set, self)
+            self.clear = types.MethodType(clear, self)
+
+    if _OrderedDict is not None:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = _OrderedDict()
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.popitem(False)
+
+                def clear(self):
+                    cache.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    else:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = {}
+                key_fifo = collections.deque([], size)
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.pop(key_fifo.popleft(), None)
+                    key_fifo.append(key)
+
+                def clear(self):
+                    cache.clear()
+                    key_fifo.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    # argument cache for optimizing repeated calls when backtracking through recursive expressions
+    packrat_cache = {} # this is set later by enabledPackrat(); this is here so that resetCache() doesn't fail
+    packrat_cache_lock = RLock()
+    packrat_cache_stats = [0, 0]
+
+    # this method gets repeatedly called during backtracking with the same arguments -
+    # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
+    def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
+        HIT, MISS = 0, 1
+        lookup = (self, instring, loc, callPreParse, doActions)
+        with ParserElement.packrat_cache_lock:
+            cache = ParserElement.packrat_cache
+            value = cache.get(lookup)
+            if value is cache.not_in_cache:
+                ParserElement.packrat_cache_stats[MISS] += 1
+                try:
+                    value = self._parseNoCache(instring, loc, doActions, callPreParse)
+                except ParseBaseException as pe:
+                    # cache a copy of the exception, without the traceback
+                    cache.set(lookup, pe.__class__(*pe.args))
+                    raise
+                else:
+                    cache.set(lookup, (value[0], value[1].copy()))
+                    return value
+            else:
+                ParserElement.packrat_cache_stats[HIT] += 1
+                if isinstance(value, Exception):
+                    raise value
+                return (value[0], value[1].copy())
+
+    _parse = _parseNoCache
+
+    @staticmethod
+    def resetCache():
+        ParserElement.packrat_cache.clear()
+        ParserElement.packrat_cache_stats[:] = [0] * len(ParserElement.packrat_cache_stats)
+
+    _packratEnabled = False
+    @staticmethod
+    def enablePackrat(cache_size_limit=128):
+        """Enables "packrat" parsing, which adds memoizing to the parsing logic.
+           Repeated parse attempts at the same string location (which happens
+           often in many complex grammars) can immediately return a cached value,
+           instead of re-executing parsing/validating code.  Memoizing is done of
+           both valid results and parsing exceptions.
+           
+           Parameters:
+            - cache_size_limit - (default=C{128}) - if an integer value is provided
+              will limit the size of the packrat cache; if None is passed, then
+              the cache size will be unbounded; if 0 is passed, the cache will
+              be effectively disabled.
+            
+           This speedup may break existing programs that use parse actions that
+           have side-effects.  For this reason, packrat parsing is disabled when
+           you first import pyparsing.  To activate the packrat feature, your
+           program must call the class method C{ParserElement.enablePackrat()}.  If
+           your program uses C{psyco} to "compile as you go", you must call
+           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
+           Python will crash.  For best results, call C{enablePackrat()} immediately
+           after importing pyparsing.
+           
+           Example::
+               import pyparsing
+               pyparsing.ParserElement.enablePackrat()
+        """
+        if not ParserElement._packratEnabled:
+            ParserElement._packratEnabled = True
+            if cache_size_limit is None:
+                ParserElement.packrat_cache = ParserElement._UnboundedCache()
+            else:
+                ParserElement.packrat_cache = ParserElement._FifoCache(cache_size_limit)
+            ParserElement._parse = ParserElement._parseCache
+
+    def parseString( self, instring, parseAll=False ):
+        """
+        Execute the parse expression with the given string.
+        This is the main interface to the client code, once the complete
+        expression has been built.
+
+        If you want the grammar to require that the entire input string be
+        successfully parsed, then set C{parseAll} to True (equivalent to ending
+        the grammar with C{L{StringEnd()}}).
+
+        Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
+        in order to report proper column numbers in parse actions.
+        If the input string contains tabs and
+        the grammar uses parse actions that use the C{loc} argument to index into the
+        string being parsed, you can ensure you have a consistent view of the input
+        string by:
+         - calling C{parseWithTabs} on your grammar before calling C{parseString}
+           (see L{I{parseWithTabs}<parseWithTabs>})
+         - define your parse action using the full C{(s,loc,toks)} signature, and
+           reference the input string using the parse action's C{s} argument
+         - explictly expand the tabs in your input string before calling
+           C{parseString}
+        
+        Example::
+            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
+            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
+        """
+        ParserElement.resetCache()
+        if not self.streamlined:
+            self.streamline()
+            #~ self.saveAsList = True
+        for e in self.ignoreExprs:
+            e.streamline()
+        if not self.keepTabs:
+            instring = instring.expandtabs()
+        try:
+            loc, tokens = self._parse( instring, 0 )
+            if parseAll:
+                loc = self.preParse( instring, loc )
+                se = Empty() + StringEnd()
+                se._parse( instring, loc )
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+        else:
+            return tokens
+
+    def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
+        """
+        Scan the input string for expression matches.  Each match will return the
+        matching tokens, start location, and end location.  May be called with optional
+        C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
+        C{overlap} is specified, then overlapping matches will be reported.
+
+        Note that the start and end locations are reported relative to the string
+        being parsed.  See L{I{parseString}<parseString>} for more information on parsing
+        strings with embedded tabs.
+
+        Example::
+            source = "sldjf123lsdjjkf345sldkjf879lkjsfd987"
+            print(source)
+            for tokens,start,end in Word(alphas).scanString(source):
+                print(' '*start + '^'*(end-start))
+                print(' '*start + tokens[0])
+        
+        prints::
+        
+            sldjf123lsdjjkf345sldkjf879lkjsfd987
+            ^^^^^
+            sldjf
+                    ^^^^^^^
+                    lsdjjkf
+                              ^^^^^^
+                              sldkjf
+                                       ^^^^^^
+                                       lkjsfd
+        """
+        if not self.streamlined:
+            self.streamline()
+        for e in self.ignoreExprs:
+            e.streamline()
+
+        if not self.keepTabs:
+            instring = _ustr(instring).expandtabs()
+        instrlen = len(instring)
+        loc = 0
+        preparseFn = self.preParse
+        parseFn = self._parse
+        ParserElement.resetCache()
+        matches = 0
+        try:
+            while loc <= instrlen and matches < maxMatches:
+                try:
+                    preloc = preparseFn( instring, loc )
+                    nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
+                except ParseException:
+                    loc = preloc+1
+                else:
+                    if nextLoc > loc:
+                        matches += 1
+                        yield tokens, preloc, nextLoc
+                        if overlap:
+                            nextloc = preparseFn( instring, loc )
+                            if nextloc > loc:
+                                loc = nextLoc
+                            else:
+                                loc += 1
+                        else:
+                            loc = nextLoc
+                    else:
+                        loc = preloc+1
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def transformString( self, instring ):
+        """
+        Extension to C{L{scanString}}, to modify matching text with modified tokens that may
+        be returned from a parse action.  To use C{transformString}, define a grammar and
+        attach a parse action to it that modifies the returned token list.
+        Invoking C{transformString()} on a target string will then scan for matches,
+        and replace the matched text patterns according to the logic in the parse
+        action.  C{transformString()} returns the resulting transformed string.
+        
+        Example::
+            wd = Word(alphas)
+            wd.setParseAction(lambda toks: toks[0].title())
+            
+            print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york."))
+        Prints::
+            Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York.
+        """
+        out = []
+        lastE = 0
+        # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
+        # keep string locs straight between transformString and scanString
+        self.keepTabs = True
+        try:
+            for t,s,e in self.scanString( instring ):
+                out.append( instring[lastE:s] )
+                if t:
+                    if isinstance(t,ParseResults):
+                        out += t.asList()
+                    elif isinstance(t,list):
+                        out += t
+                    else:
+                        out.append(t)
+                lastE = e
+            out.append(instring[lastE:])
+            out = [o for o in out if o]
+            return "".join(map(_ustr,_flatten(out)))
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def searchString( self, instring, maxMatches=_MAX_INT ):
+        """
+        Another extension to C{L{scanString}}, simplifying the access to the tokens found
+        to match the given parse expression.  May be called with optional
+        C{maxMatches} argument, to clip searching after 'n' matches are found.
+        
+        Example::
+            # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters
+            cap_word = Word(alphas.upper(), alphas.lower())
+            
+            print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))
+        prints::
+            ['More', 'Iron', 'Lead', 'Gold', 'I']
+        """
+        try:
+            return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def split(self, instring, maxsplit=_MAX_INT, includeSeparators=False):
+        """
+        Generator method to split a string using the given expression as a separator.
+        May be called with optional C{maxsplit} argument, to limit the number of splits;
+        and the optional C{includeSeparators} argument (default=C{False}), if the separating
+        matching text should be included in the split results.
+        
+        Example::        
+            punc = oneOf(list(".,;:/-!?"))
+            print(list(punc.split("This, this?, this sentence, is badly punctuated!")))
+        prints::
+            ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
+        """
+        splits = 0
+        last = 0
+        for t,s,e in self.scanString(instring, maxMatches=maxsplit):
+            yield instring[last:s]
+            if includeSeparators:
+                yield t[0]
+            last = e
+        yield instring[last:]
+
+    def __add__(self, other ):
+        """
+        Implementation of + operator - returns C{L{And}}. Adding strings to a ParserElement
+        converts them to L{Literal}s by default.
+        
+        Example::
+            greet = Word(alphas) + "," + Word(alphas) + "!"
+            hello = "Hello, World!"
+            print (hello, "->", greet.parseString(hello))
+        Prints::
+            Hello, World! -> ['Hello', ',', 'World', '!']
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, other ] )
+
+    def __radd__(self, other ):
+        """
+        Implementation of + operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other + self
+
+    def __sub__(self, other):
+        """
+        Implementation of - operator, returns C{L{And}} with error stop
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, And._ErrorStop(), other ] )
+
+    def __rsub__(self, other ):
+        """
+        Implementation of - operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other - self
+
+    def __mul__(self,other):
+        """
+        Implementation of * operator, allows use of C{expr * 3} in place of
+        C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
+        tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
+        may also include C{None} as in:
+         - C{expr*(n,None)} or C{expr*(n,)} is equivalent
+              to C{expr*n + L{ZeroOrMore}(expr)}
+              (read as "at least n instances of C{expr}")
+         - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
+              (read as "0 to n instances of C{expr}")
+         - C{expr*(None,None)} is equivalent to C{L{ZeroOrMore}(expr)}
+         - C{expr*(1,None)} is equivalent to C{L{OneOrMore}(expr)}
+
+        Note that C{expr*(None,n)} does not raise an exception if
+        more than n exprs exist in the input stream; that is,
+        C{expr*(None,n)} does not enforce a maximum number of expr
+        occurrences.  If this behavior is desired, then write
+        C{expr*(None,n) + ~expr}
+        """
+        if isinstance(other,int):
+            minElements, optElements = other,0
+        elif isinstance(other,tuple):
+            other = (other + (None, None))[:2]
+            if other[0] is None:
+                other = (0, other[1])
+            if isinstance(other[0],int) and other[1] is None:
+                if other[0] == 0:
+                    return ZeroOrMore(self)
+                if other[0] == 1:
+                    return OneOrMore(self)
+                else:
+                    return self*other[0] + ZeroOrMore(self)
+            elif isinstance(other[0],int) and isinstance(other[1],int):
+                minElements, optElements = other
+                optElements -= minElements
+            else:
+                raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
+        else:
+            raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
+
+        if minElements < 0:
+            raise ValueError("cannot multiply ParserElement by negative value")
+        if optElements < 0:
+            raise ValueError("second tuple value must be greater or equal to first tuple value")
+        if minElements == optElements == 0:
+            raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
+
+        if (optElements):
+            def makeOptionalList(n):
+                if n>1:
+                    return Optional(self + makeOptionalList(n-1))
+                else:
+                    return Optional(self)
+            if minElements:
+                if minElements == 1:
+                    ret = self + makeOptionalList(optElements)
+                else:
+                    ret = And([self]*minElements) + makeOptionalList(optElements)
+            else:
+                ret = makeOptionalList(optElements)
+        else:
+            if minElements == 1:
+                ret = self
+            else:
+                ret = And([self]*minElements)
+        return ret
+
+    def __rmul__(self, other):
+        return self.__mul__(other)
+
+    def __or__(self, other ):
+        """
+        Implementation of | operator - returns C{L{MatchFirst}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return MatchFirst( [ self, other ] )
+
+    def __ror__(self, other ):
+        """
+        Implementation of | operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other | self
+
+    def __xor__(self, other ):
+        """
+        Implementation of ^ operator - returns C{L{Or}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Or( [ self, other ] )
+
+    def __rxor__(self, other ):
+        """
+        Implementation of ^ operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other ^ self
+
+    def __and__(self, other ):
+        """
+        Implementation of & operator - returns C{L{Each}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Each( [ self, other ] )
+
+    def __rand__(self, other ):
+        """
+        Implementation of & operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other & self
+
+    def __invert__( self ):
+        """
+        Implementation of ~ operator - returns C{L{NotAny}}
+        """
+        return NotAny( self )
+
+    def __call__(self, name=None):
+        """
+        Shortcut for C{L{setResultsName}}, with C{listAllMatches=False}.
+        
+        If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
+        passed as C{True}.
+           
+        If C{name} is omitted, same as calling C{L{copy}}.
+
+        Example::
+            # these are equivalent
+            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
+            userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")             
+        """
+        if name is not None:
+            return self.setResultsName(name)
+        else:
+            return self.copy()
+
+    def suppress( self ):
+        """
+        Suppresses the output of this C{ParserElement}; useful to keep punctuation from
+        cluttering up returned output.
+        """
+        return Suppress( self )
+
+    def leaveWhitespace( self ):
+        """
+        Disables the skipping of whitespace before matching the characters in the
+        C{ParserElement}'s defined pattern.  This is normally only used internally by
+        the pyparsing module, but may be needed in some whitespace-sensitive grammars.
+        """
+        self.skipWhitespace = False
+        return self
+
+    def setWhitespaceChars( self, chars ):
+        """
+        Overrides the default whitespace chars
+        """
+        self.skipWhitespace = True
+        self.whiteChars = chars
+        self.copyDefaultWhiteChars = False
+        return self
+
+    def parseWithTabs( self ):
+        """
+        Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
+        Must be called before C{parseString} when the input grammar contains elements that
+        match C{<TAB>} characters.
+        """
+        self.keepTabs = True
+        return self
+
+    def ignore( self, other ):
+        """
+        Define expression to be ignored (e.g., comments) while doing pattern
+        matching; may be called repeatedly, to define multiple comment or other
+        ignorable patterns.
+        
+        Example::
+            patt = OneOrMore(Word(alphas))
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']
+            
+            patt.ignore(cStyleComment)
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
+        """
+        if isinstance(other, basestring):
+            other = Suppress(other)
+
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                self.ignoreExprs.append(other)
+        else:
+            self.ignoreExprs.append( Suppress( other.copy() ) )
+        return self
+
+    def setDebugActions( self, startAction, successAction, exceptionAction ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        """
+        self.debugActions = (startAction or _defaultStartDebugAction,
+                             successAction or _defaultSuccessDebugAction,
+                             exceptionAction or _defaultExceptionDebugAction)
+        self.debug = True
+        return self
+
+    def setDebug( self, flag=True ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        Set C{flag} to True to enable, False to disable.
+
+        Example::
+            wd = Word(alphas).setName("alphaword")
+            integer = Word(nums).setName("numword")
+            term = wd | integer
+            
+            # turn on debugging for wd
+            wd.setDebug()
+
+            OneOrMore(term).parseString("abc 123 xyz 890")
+        
+        prints::
+            Match alphaword at loc 0(1,1)
+            Matched alphaword -> ['abc']
+            Match alphaword at loc 3(1,4)
+            Exception raised:Expected alphaword (at char 4), (line:1, col:5)
+            Match alphaword at loc 7(1,8)
+            Matched alphaword -> ['xyz']
+            Match alphaword at loc 11(1,12)
+            Exception raised:Expected alphaword (at char 12), (line:1, col:13)
+            Match alphaword at loc 15(1,16)
+            Exception raised:Expected alphaword (at char 15), (line:1, col:16)
+
+        The output shown is that produced by the default debug actions - custom debug actions can be
+        specified using L{setDebugActions}. Prior to attempting
+        to match the C{wd} expression, the debugging message C{"Match <exprname> at loc <n>(<line>,<col>)"}
+        is shown. Then if the parse succeeds, a C{"Matched"} message is shown, or an C{"Exception raised"}
+        message is shown. Also note the use of L{setName} to assign a human-readable name to the expression,
+        which makes debugging and exception messages easier to understand - for instance, the default
+        name created for the C{Word} expression without calling C{setName} is C{"W:(ABCD...)"}.
+        """
+        if flag:
+            self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
+        else:
+            self.debug = False
+        return self
+
+    def __str__( self ):
+        return self.name
+
+    def __repr__( self ):
+        return _ustr(self)
+
+    def streamline( self ):
+        self.streamlined = True
+        self.strRepr = None
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        pass
+
+    def validate( self, validateTrace=[] ):
+        """
+        Check defined expressions for valid structure, check for infinite recursive definitions.
+        """
+        self.checkRecursion( [] )
+
+    def parseFile( self, file_or_filename, parseAll=False ):
+        """
+        Execute the parse expression on the given file or filename.
+        If a filename is specified (instead of a file object),
+        the entire file is opened, read, and closed before parsing.
+        """
+        try:
+            file_contents = file_or_filename.read()
+        except AttributeError:
+            with open(file_or_filename, "r") as f:
+                file_contents = f.read()
+        try:
+            return self.parseString(file_contents, parseAll)
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def __eq__(self,other):
+        if isinstance(other, ParserElement):
+            return self is other or vars(self) == vars(other)
+        elif isinstance(other, basestring):
+            return self.matches(other)
+        else:
+            return super(ParserElement,self)==other
+
+    def __ne__(self,other):
+        return not (self == other)
+
+    def __hash__(self):
+        return hash(id(self))
+
+    def __req__(self,other):
+        return self == other
+
+    def __rne__(self,other):
+        return not (self == other)
+
+    def matches(self, testString, parseAll=True):
+        """
+        Method for quick testing of a parser against a test string. Good for simple 
+        inline microtests of sub expressions while building up larger parser.
+           
+        Parameters:
+         - testString - to test against this expression for a match
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests
+            
+        Example::
+            expr = Word(nums)
+            assert expr.matches("100")
+        """
+        try:
+            self.parseString(_ustr(testString), parseAll=parseAll)
+            return True
+        except ParseBaseException:
+            return False
+                
+    def runTests(self, tests, parseAll=True, comment='#', fullDump=True, printResults=True, failureTests=False):
+        """
+        Execute the parse expression on a series of test strings, showing each
+        test, the parsed results or where the parse failed. Quick and easy way to
+        run a parse expression against a list of sample strings.
+           
+        Parameters:
+         - tests - a list of separate test strings, or a multiline string of test strings
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests           
+         - comment - (default=C{'#'}) - expression for indicating embedded comments in the test 
+              string; pass None to disable comment filtering
+         - fullDump - (default=C{True}) - dump results as list followed by results names in nested outline;
+              if False, only dump nested list
+         - printResults - (default=C{True}) prints test output to stdout
+         - failureTests - (default=C{False}) indicates if these tests are expected to fail parsing
+
+        Returns: a (success, results) tuple, where success indicates that all tests succeeded
+        (or failed if C{failureTests} is True), and the results contain a list of lines of each 
+        test's output
+        
+        Example::
+            number_expr = pyparsing_common.number.copy()
+
+            result = number_expr.runTests('''
+                # unsigned integer
+                100
+                # negative integer
+                -100
+                # float with scientific notation
+                6.02e23
+                # integer with scientific notation
+                1e-12
+                ''')
+            print("Success" if result[0] else "Failed!")
+
+            result = number_expr.runTests('''
+                # stray character
+                100Z
+                # missing leading digit before '.'
+                -.100
+                # too many '.'
+                3.14.159
+                ''', failureTests=True)
+            print("Success" if result[0] else "Failed!")
+        prints::
+            # unsigned integer
+            100
+            [100]
+
+            # negative integer
+            -100
+            [-100]
+
+            # float with scientific notation
+            6.02e23
+            [6.02e+23]
+
+            # integer with scientific notation
+            1e-12
+            [1e-12]
+
+            Success
+            
+            # stray character
+            100Z
+               ^
+            FAIL: Expected end of text (at char 3), (line:1, col:4)
+
+            # missing leading digit before '.'
+            -.100
+            ^
+            FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1)
+
+            # too many '.'
+            3.14.159
+                ^
+            FAIL: Expected end of text (at char 4), (line:1, col:5)
+
+            Success
+
+        Each test string must be on a single line. If you want to test a string that spans multiple
+        lines, create a test like this::
+
+            expr.runTest(r"this is a test\\n of strings that spans \\n 3 lines")
+        
+        (Note that this is a raw string literal, you must include the leading 'r'.)
+        """
+        if isinstance(tests, basestring):
+            tests = list(map(str.strip, tests.rstrip().splitlines()))
+        if isinstance(comment, basestring):
+            comment = Literal(comment)
+        allResults = []
+        comments = []
+        success = True
+        for t in tests:
+            if comment is not None and comment.matches(t, False) or comments and not t:
+                comments.append(t)
+                continue
+            if not t:
+                continue
+            out = ['\n'.join(comments), t]
+            comments = []
+            try:
+                t = t.replace(r'\n','\n')
+                result = self.parseString(t, parseAll=parseAll)
+                out.append(result.dump(full=fullDump))
+                success = success and not failureTests
+            except ParseBaseException as pe:
+                fatal = "(FATAL)" if isinstance(pe, ParseFatalException) else ""
+                if '\n' in t:
+                    out.append(line(pe.loc, t))
+                    out.append(' '*(col(pe.loc,t)-1) + '^' + fatal)
+                else:
+                    out.append(' '*pe.loc + '^' + fatal)
+                out.append("FAIL: " + str(pe))
+                success = success and failureTests
+                result = pe
+            except Exception as exc:
+                out.append("FAIL-EXCEPTION: " + str(exc))
+                success = success and failureTests
+                result = exc
+
+            if printResults:
+                if fullDump:
+                    out.append('')
+                print('\n'.join(out))
+
+            allResults.append((t, result))
+        
+        return success, allResults
+
+        
+class Token(ParserElement):
+    """
+    Abstract C{ParserElement} subclass, for defining atomic matching patterns.
+    """
+    def __init__( self ):
+        super(Token,self).__init__( savelist=False )
+
+
+class Empty(Token):
+    """
+    An empty token, will always match.
+    """
+    def __init__( self ):
+        super(Empty,self).__init__()
+        self.name = "Empty"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+
+class NoMatch(Token):
+    """
+    A token that will never match.
+    """
+    def __init__( self ):
+        super(NoMatch,self).__init__()
+        self.name = "NoMatch"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.errmsg = "Unmatchable token"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Literal(Token):
+    """
+    Token to exactly match a specified string.
+    
+    Example::
+        Literal('blah').parseString('blah')  # -> ['blah']
+        Literal('blah').parseString('blahfooblah')  # -> ['blah']
+        Literal('blah').parseString('bla')  # -> Exception: Expected "blah"
+    
+    For case-insensitive matching, use L{CaselessLiteral}.
+    
+    For keyword matching (force word break before and after the matched string),
+    use L{Keyword} or L{CaselessKeyword}.
+    """
+    def __init__( self, matchString ):
+        super(Literal,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Literal; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+            self.__class__ = Empty
+        self.name = '"%s"' % _ustr(self.match)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+
+    # Performance tuning: this routine gets called a *lot*
+    # if this is a single character match string  and the first character matches,
+    # short-circuit as quickly as possible, and avoid calling startswith
+    #~ @profile
+    def parseImpl( self, instring, loc, doActions=True ):
+        if (instring[loc] == self.firstMatchChar and
+            (self.matchLen==1 or instring.startswith(self.match,loc)) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+_L = Literal
+ParserElement._literalStringClass = Literal
+
+class Keyword(Token):
+    """
+    Token to exactly match a specified string as a keyword, that is, it must be
+    immediately followed by a non-keyword character.  Compare with C{L{Literal}}:
+     - C{Literal("if")} will match the leading C{'if'} in C{'ifAndOnlyIf'}.
+     - C{Keyword("if")} will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
+    Accepts two optional constructor arguments in addition to the keyword string:
+     - C{identChars} is a string of characters that would be valid identifier characters,
+          defaulting to all alphanumerics + "_" and "$"
+     - C{caseless} allows case-insensitive matching, default is C{False}.
+       
+    Example::
+        Keyword("start").parseString("start")  # -> ['start']
+        Keyword("start").parseString("starting")  # -> Exception
+
+    For case-insensitive matching, use L{CaselessKeyword}.
+    """
+    DEFAULT_KEYWORD_CHARS = alphanums+"_$"
+
+    def __init__( self, matchString, identChars=None, caseless=False ):
+        super(Keyword,self).__init__()
+        if identChars is None:
+            identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Keyword; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+        self.name = '"%s"' % self.match
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+        self.caseless = caseless
+        if caseless:
+            self.caselessmatch = matchString.upper()
+            identChars = identChars.upper()
+        self.identChars = set(identChars)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.caseless:
+            if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+                 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
+                 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        else:
+            if (instring[loc] == self.firstMatchChar and
+                (self.matchLen==1 or instring.startswith(self.match,loc)) and
+                (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
+                (loc == 0 or instring[loc-1] not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+    def copy(self):
+        c = super(Keyword,self).copy()
+        c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        return c
+
+    @staticmethod
+    def setDefaultKeywordChars( chars ):
+        """Overrides the default Keyword chars
+        """
+        Keyword.DEFAULT_KEYWORD_CHARS = chars
+
+class CaselessLiteral(Literal):
+    """
+    Token to match a specified string, ignoring case of letters.
+    Note: the matched results will always be in the case of the given
+    match string, NOT the case of the input text.
+
+    Example::
+        OneOrMore(CaselessLiteral("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessKeyword}.)
+    """
+    def __init__( self, matchString ):
+        super(CaselessLiteral,self).__init__( matchString.upper() )
+        # Preserve the defining literal.
+        self.returnString = matchString
+        self.name = "'%s'" % self.returnString
+        self.errmsg = "Expected " + self.name
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[ loc:loc+self.matchLen ].upper() == self.match:
+            return loc+self.matchLen, self.returnString
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CaselessKeyword(Keyword):
+    """
+    Caseless version of L{Keyword}.
+
+    Example::
+        OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessLiteral}.)
+    """
+    def __init__( self, matchString, identChars=None ):
+        super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+             (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CloseMatch(Token):
+    """
+    A variation on L{Literal} which matches "close" matches, that is, 
+    strings with at most 'n' mismatching characters. C{CloseMatch} takes parameters:
+     - C{match_string} - string to be matched
+     - C{maxMismatches} - (C{default=1}) maximum number of mismatches allowed to count as a match
+    
+    The results from a successful parse will contain the matched text from the input string and the following named results:
+     - C{mismatches} - a list of the positions within the match_string where mismatches were found
+     - C{original} - the original match_string used to compare against the input string
+    
+    If C{mismatches} is an empty list, then the match was an exact match.
+    
+    Example::
+        patt = CloseMatch("ATCATCGAATGGA")
+        patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']})
+        patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1)
+
+        # exact match
+        patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']})
+
+        # close match allowing up to 2 mismatches
+        patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2)
+        patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']})
+    """
+    def __init__(self, match_string, maxMismatches=1):
+        super(CloseMatch,self).__init__()
+        self.name = match_string
+        self.match_string = match_string
+        self.maxMismatches = maxMismatches
+        self.errmsg = "Expected %r (with up to %d mismatches)" % (self.match_string, self.maxMismatches)
+        self.mayIndexError = False
+        self.mayReturnEmpty = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        start = loc
+        instrlen = len(instring)
+        maxloc = start + len(self.match_string)
+
+        if maxloc <= instrlen:
+            match_string = self.match_string
+            match_stringloc = 0
+            mismatches = []
+            maxMismatches = self.maxMismatches
+
+            for match_stringloc,s_m in enumerate(zip(instring[loc:maxloc], self.match_string)):
+                src,mat = s_m
+                if src != mat:
+                    mismatches.append(match_stringloc)
+                    if len(mismatches) > maxMismatches:
+                        break
+            else:
+                loc = match_stringloc + 1
+                results = ParseResults([instring[start:loc]])
+                results['original'] = self.match_string
+                results['mismatches'] = mismatches
+                return loc, results
+
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Word(Token):
+    """
+    Token for matching words composed of allowed character sets.
+    Defined with string containing all allowed initial characters,
+    an optional string containing allowed body characters (if omitted,
+    defaults to the initial character set), and an optional minimum,
+    maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction. An optional
+    C{excludeChars} parameter can list characters that might be found in 
+    the input C{bodyChars} string; useful to define a word of all printables
+    except for one or two characters, for instance.
+    
+    L{srange} is useful for defining custom character set strings for defining 
+    C{Word} expressions, using range notation from regular expression character sets.
+    
+    A common mistake is to use C{Word} to match a specific literal string, as in 
+    C{Word("Address")}. Remember that C{Word} uses the string argument to define
+    I{sets} of matchable characters. This expression would match "Add", "AAA",
+    "dAred", or any other word made up of the characters 'A', 'd', 'r', 'e', and 's'.
+    To match an exact literal string, use L{Literal} or L{Keyword}.
+
+    pyparsing includes helper strings for building Words:
+     - L{alphas}
+     - L{nums}
+     - L{alphanums}
+     - L{hexnums}
+     - L{alphas8bit} (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.)
+     - L{punc8bit} (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.)
+     - L{printables} (any non-whitespace character)
+
+    Example::
+        # a word composed of digits
+        integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9"))
+        
+        # a word with a leading capital, and zero or more lowercase
+        capital_word = Word(alphas.upper(), alphas.lower())
+
+        # hostnames are alphanumeric, with leading alpha, and '-'
+        hostname = Word(alphas, alphanums+'-')
+        
+        # roman numeral (not a strict parser, accepts invalid mix of characters)
+        roman = Word("IVXLCDM")
+        
+        # any string of non-whitespace characters, except for ','
+        csv_value = Word(printables, excludeChars=",")
+    """
+    def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
+        super(Word,self).__init__()
+        if excludeChars:
+            initChars = ''.join(c for c in initChars if c not in excludeChars)
+            if bodyChars:
+                bodyChars = ''.join(c for c in bodyChars if c not in excludeChars)
+        self.initCharsOrig = initChars
+        self.initChars = set(initChars)
+        if bodyChars :
+            self.bodyCharsOrig = bodyChars
+            self.bodyChars = set(bodyChars)
+        else:
+            self.bodyCharsOrig = initChars
+            self.bodyChars = set(initChars)
+
+        self.maxSpecified = max > 0
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.asKeyword = asKeyword
+
+        if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
+            if self.bodyCharsOrig == self.initCharsOrig:
+                self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
+            elif len(self.initCharsOrig) == 1:
+                self.reString = "%s[%s]*" % \
+                                      (re.escape(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            else:
+                self.reString = "[%s][%s]*" % \
+                                      (_escapeRegexRangeChars(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            if self.asKeyword:
+                self.reString = r"\b"+self.reString+r"\b"
+            try:
+                self.re = re.compile( self.reString )
+            except Exception:
+                self.re = None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.re:
+            result = self.re.match(instring,loc)
+            if not result:
+                raise ParseException(instring, loc, self.errmsg, self)
+
+            loc = result.end()
+            return loc, result.group()
+
+        if not(instring[ loc ] in self.initChars):
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        instrlen = len(instring)
+        bodychars = self.bodyChars
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, instrlen )
+        while loc < maxloc and instring[loc] in bodychars:
+            loc += 1
+
+        throwException = False
+        if loc - start < self.minLen:
+            throwException = True
+        if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
+            throwException = True
+        if self.asKeyword:
+            if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
+                throwException = True
+
+        if throwException:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(Word,self).__str__()
+        except Exception:
+            pass
+
+
+        if self.strRepr is None:
+
+            def charsAsStr(s):
+                if len(s)>4:
+                    return s[:4]+"..."
+                else:
+                    return s
+
+            if ( self.initCharsOrig != self.bodyCharsOrig ):
+                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
+            else:
+                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
+
+        return self.strRepr
+
+
+class Regex(Token):
+    """
+    Token for matching strings that match a given regular expression.
+    Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
+    If the given regex contains named groups (defined using C{(?P<name>...)}), these will be preserved as 
+    named parse results.
+
+    Example::
+        realnum = Regex(r"[+-]?\d+\.\d*")
+        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
+        # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
+        roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")
+    """
+    compiledREtype = type(re.compile("[A-Z]"))
+    def __init__( self, pattern, flags=0):
+        """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
+        super(Regex,self).__init__()
+
+        if isinstance(pattern, basestring):
+            if not pattern:
+                warnings.warn("null string passed to Regex; use Empty() instead",
+                        SyntaxWarning, stacklevel=2)
+
+            self.pattern = pattern
+            self.flags = flags
+
+            try:
+                self.re = re.compile(self.pattern, self.flags)
+                self.reString = self.pattern
+            except sre_constants.error:
+                warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
+                    SyntaxWarning, stacklevel=2)
+                raise
+
+        elif isinstance(pattern, Regex.compiledREtype):
+            self.re = pattern
+            self.pattern = \
+            self.reString = str(pattern)
+            self.flags = flags
+            
+        else:
+            raise ValueError("Regex may only be constructed with a string or a compiled RE object")
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = self.re.match(instring,loc)
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        d = result.groupdict()
+        ret = ParseResults(result.group())
+        if d:
+            for k in d:
+                ret[k] = d[k]
+        return loc,ret
+
+    def __str__( self ):
+        try:
+            return super(Regex,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "Re:(%s)" % repr(self.pattern)
+
+        return self.strRepr
+
+
+class QuotedString(Token):
+    r"""
+    Token for matching strings that are delimited by quoting characters.
+    
+    Defined with the following parameters:
+        - quoteChar - string of one or more characters defining the quote delimiting string
+        - escChar - character to escape quotes, typically backslash (default=C{None})
+        - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=C{None})
+        - multiline - boolean indicating whether quotes can span multiple lines (default=C{False})
+        - unquoteResults - boolean indicating whether the matched text should be unquoted (default=C{True})
+        - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=C{None} => same as quoteChar)
+        - convertWhitespaceEscapes - convert escaped whitespace (C{'\t'}, C{'\n'}, etc.) to actual whitespace (default=C{True})
+
+    Example::
+        qs = QuotedString('"')
+        print(qs.searchString('lsjdf "This is the quote" sldjf'))
+        complex_qs = QuotedString('{{', endQuoteChar='}}')
+        print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf'))
+        sql_qs = QuotedString('"', escQuote='""')
+        print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf'))
+    prints::
+        [['This is the quote']]
+        [['This is the "quote"']]
+        [['This is the quote with "embedded" quotes']]
+    """
+    def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None, convertWhitespaceEscapes=True):
+        super(QuotedString,self).__init__()
+
+        # remove white space from quote chars - wont work anyway
+        quoteChar = quoteChar.strip()
+        if not quoteChar:
+            warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+            raise SyntaxError()
+
+        if endQuoteChar is None:
+            endQuoteChar = quoteChar
+        else:
+            endQuoteChar = endQuoteChar.strip()
+            if not endQuoteChar:
+                warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+                raise SyntaxError()
+
+        self.quoteChar = quoteChar
+        self.quoteCharLen = len(quoteChar)
+        self.firstQuoteChar = quoteChar[0]
+        self.endQuoteChar = endQuoteChar
+        self.endQuoteCharLen = len(endQuoteChar)
+        self.escChar = escChar
+        self.escQuote = escQuote
+        self.unquoteResults = unquoteResults
+        self.convertWhitespaceEscapes = convertWhitespaceEscapes
+
+        if multiline:
+            self.flags = re.MULTILINE | re.DOTALL
+            self.pattern = r'%s(?:[^%s%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        else:
+            self.flags = 0
+            self.pattern = r'%s(?:[^%s\n\r%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        if len(self.endQuoteChar) > 1:
+            self.pattern += (
+                '|(?:' + ')|(?:'.join("%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
+                                               _escapeRegexRangeChars(self.endQuoteChar[i]))
+                                    for i in range(len(self.endQuoteChar)-1,0,-1)) + ')'
+                )
+        if escQuote:
+            self.pattern += (r'|(?:%s)' % re.escape(escQuote))
+        if escChar:
+            self.pattern += (r'|(?:%s.)' % re.escape(escChar))
+            self.escCharReplacePattern = re.escape(self.escChar)+"(.)"
+        self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
+
+        try:
+            self.re = re.compile(self.pattern, self.flags)
+            self.reString = self.pattern
+        except sre_constants.error:
+            warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
+                SyntaxWarning, stacklevel=2)
+            raise
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        ret = result.group()
+
+        if self.unquoteResults:
+
+            # strip off quotes
+            ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
+
+            if isinstance(ret,basestring):
+                # replace escaped whitespace
+                if '\\' in ret and self.convertWhitespaceEscapes:
+                    ws_map = {
+                        r'\t' : '\t',
+                        r'\n' : '\n',
+                        r'\f' : '\f',
+                        r'\r' : '\r',
+                    }
+                    for wslit,wschar in ws_map.items():
+                        ret = ret.replace(wslit, wschar)
+
+                # replace escaped characters
+                if self.escChar:
+                    ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
+
+                # replace escaped quotes
+                if self.escQuote:
+                    ret = ret.replace(self.escQuote, self.endQuoteChar)
+
+        return loc, ret
+
+    def __str__( self ):
+        try:
+            return super(QuotedString,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
+
+        return self.strRepr
+
+
+class CharsNotIn(Token):
+    """
+    Token for matching words composed of characters I{not} in a given set (will
+    include whitespace in matched characters if not listed in the provided exclusion set - see example).
+    Defined with string containing all disallowed characters, and an optional
+    minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction.
+
+    Example::
+        # define a comma-separated-value as anything that is not a ','
+        csv_value = CharsNotIn(',')
+        print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213"))
+    prints::
+        ['dkls', 'lsdkjf', 's12 34', '@!#', '213']
+    """
+    def __init__( self, notChars, min=1, max=0, exact=0 ):
+        super(CharsNotIn,self).__init__()
+        self.skipWhitespace = False
+        self.notChars = notChars
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = ( self.minLen == 0 )
+        self.mayIndexError = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[loc] in self.notChars:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        notchars = self.notChars
+        maxlen = min( start+self.maxLen, len(instring) )
+        while loc < maxlen and \
+              (instring[loc] not in notchars):
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(CharsNotIn, self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            if len(self.notChars) > 4:
+                self.strRepr = "!W:(%s...)" % self.notChars[:4]
+            else:
+                self.strRepr = "!W:(%s)" % self.notChars
+
+        return self.strRepr
+
+class White(Token):
+    """
+    Special matching class for matching whitespace.  Normally, whitespace is ignored
+    by pyparsing grammars.  This class is included when some whitespace structures
+    are significant.  Define with a string containing the whitespace characters to be
+    matched; default is C{" \\t\\r\\n"}.  Also takes optional C{min}, C{max}, and C{exact} arguments,
+    as defined for the C{L{Word}} class.
+    """
+    whiteStrs = {
+        " " : "<SPC>",
+        "\t": "<TAB>",
+        "\n": "<LF>",
+        "\r": "<CR>",
+        "\f": "<FF>",
+        }
+    def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
+        super(White,self).__init__()
+        self.matchWhite = ws
+        self.setWhitespaceChars( "".join(c for c in self.whiteChars if c not in self.matchWhite) )
+        #~ self.leaveWhitespace()
+        self.name = ("".join(White.whiteStrs[c] for c in self.matchWhite))
+        self.mayReturnEmpty = True
+        self.errmsg = "Expected " + self.name
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not(instring[ loc ] in self.matchWhite):
+            raise ParseException(instring, loc, self.errmsg, self)
+        start = loc
+        loc += 1
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, len(instring) )
+        while loc < maxloc and instring[loc] in self.matchWhite:
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+
+class _PositionToken(Token):
+    def __init__( self ):
+        super(_PositionToken,self).__init__()
+        self.name=self.__class__.__name__
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+class GoToColumn(_PositionToken):
+    """
+    Token to advance to a specific column of input text; useful for tabular report scraping.
+    """
+    def __init__( self, colno ):
+        super(GoToColumn,self).__init__()
+        self.col = colno
+
+    def preParse( self, instring, loc ):
+        if col(loc,instring) != self.col:
+            instrlen = len(instring)
+            if self.ignoreExprs:
+                loc = self._skipIgnorables( instring, loc )
+            while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
+                loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        thiscol = col( loc, instring )
+        if thiscol > self.col:
+            raise ParseException( instring, loc, "Text not in expected column", self )
+        newloc = loc + self.col - thiscol
+        ret = instring[ loc: newloc ]
+        return newloc, ret
+
+
+class LineStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of a line within the parse string
+    
+    Example::
+    
+        test = '''\
+        AAA this line
+        AAA and this line
+          AAA but not this one
+        B AAA and definitely not this one
+        '''
+
+        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
+            print(t)
+    
+    Prints::
+        ['AAA', ' this line']
+        ['AAA', ' and this line']    
+
+    """
+    def __init__( self ):
+        super(LineStart,self).__init__()
+        self.errmsg = "Expected start of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if col(loc, instring) == 1:
+            return loc, []
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class LineEnd(_PositionToken):
+    """
+    Matches if current position is at the end of a line within the parse string
+    """
+    def __init__( self ):
+        super(LineEnd,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected end of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc<len(instring):
+            if instring[loc] == "\n":
+                return loc+1, "\n"
+            else:
+                raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class StringStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of the parse string
+    """
+    def __init__( self ):
+        super(StringStart,self).__init__()
+        self.errmsg = "Expected start of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc != 0:
+            # see if entire string up to here is just whitespace and ignoreables
+            if loc != self.preParse( instring, 0 ):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class StringEnd(_PositionToken):
+    """
+    Matches if current position is at the end of the parse string
+    """
+    def __init__( self ):
+        super(StringEnd,self).__init__()
+        self.errmsg = "Expected end of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc < len(instring):
+            raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        elif loc > len(instring):
+            return loc, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class WordStart(_PositionToken):
+    """
+    Matches if the current position is at the beginning of a Word, and
+    is not preceded by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
+    the string being parsed, or at the beginning of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordStart,self).__init__()
+        self.wordChars = set(wordChars)
+        self.errmsg = "Not at the start of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        if loc != 0:
+            if (instring[loc-1] in self.wordChars or
+                instring[loc] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class WordEnd(_PositionToken):
+    """
+    Matches if the current position is at the end of a Word, and
+    is not followed by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
+    the string being parsed, or at the end of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordEnd,self).__init__()
+        self.wordChars = set(wordChars)
+        self.skipWhitespace = False
+        self.errmsg = "Not at the end of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        instrlen = len(instring)
+        if instrlen>0 and loc<instrlen:
+            if (instring[loc] in self.wordChars or
+                instring[loc-1] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+
+class ParseExpression(ParserElement):
+    """
+    Abstract subclass of ParserElement, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(ParseExpression,self).__init__(savelist)
+        if isinstance( exprs, _generatorType ):
+            exprs = list(exprs)
+
+        if isinstance( exprs, basestring ):
+            self.exprs = [ ParserElement._literalStringClass( exprs ) ]
+        elif isinstance( exprs, collections.Iterable ):
+            exprs = list(exprs)
+            # if sequence of strings provided, wrap with Literal
+            if all(isinstance(expr, basestring) for expr in exprs):
+                exprs = map(ParserElement._literalStringClass, exprs)
+            self.exprs = list(exprs)
+        else:
+            try:
+                self.exprs = list( exprs )
+            except TypeError:
+                self.exprs = [ exprs ]
+        self.callPreparse = False
+
+    def __getitem__( self, i ):
+        return self.exprs[i]
+
+    def append( self, other ):
+        self.exprs.append( other )
+        self.strRepr = None
+        return self
+
+    def leaveWhitespace( self ):
+        """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
+           all contained expressions."""
+        self.skipWhitespace = False
+        self.exprs = [ e.copy() for e in self.exprs ]
+        for e in self.exprs:
+            e.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseExpression, self).ignore( other )
+                for e in self.exprs:
+                    e.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseExpression, self).ignore( other )
+            for e in self.exprs:
+                e.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def __str__( self ):
+        try:
+            return super(ParseExpression,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
+        return self.strRepr
+
+    def streamline( self ):
+        super(ParseExpression,self).streamline()
+
+        for e in self.exprs:
+            e.streamline()
+
+        # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
+        # but only if there are no parse actions or resultsNames on the nested And's
+        # (likewise for Or's and MatchFirst's)
+        if ( len(self.exprs) == 2 ):
+            other = self.exprs[0]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = other.exprs[:] + [ self.exprs[1] ]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+            other = self.exprs[-1]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = self.exprs[:-1] + other.exprs[:]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+        self.errmsg = "Expected " + _ustr(self)
+        
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
+        return ret
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        for e in self.exprs:
+            e.validate(tmp)
+        self.checkRecursion( [] )
+        
+    def copy(self):
+        ret = super(ParseExpression,self).copy()
+        ret.exprs = [e.copy() for e in self.exprs]
+        return ret
+
+class And(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found in the given order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'+'} operator.
+    May also be constructed using the C{'-'} operator, which will suppress backtracking.
+
+    Example::
+        integer = Word(nums)
+        name_expr = OneOrMore(Word(alphas))
+
+        expr = And([integer("id"),name_expr("name"),integer("age")])
+        # more easily written as:
+        expr = integer("id") + name_expr("name") + integer("age")
+    """
+
+    class _ErrorStop(Empty):
+        def __init__(self, *args, **kwargs):
+            super(And._ErrorStop,self).__init__(*args, **kwargs)
+            self.name = '-'
+            self.leaveWhitespace()
+
+    def __init__( self, exprs, savelist = True ):
+        super(And,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.setWhitespaceChars( self.exprs[0].whiteChars )
+        self.skipWhitespace = self.exprs[0].skipWhitespace
+        self.callPreparse = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        # pass False as last arg to _parse for first element, since we already
+        # pre-parsed the string as part of our And pre-parsing
+        loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
+        errorStop = False
+        for e in self.exprs[1:]:
+            if isinstance(e, And._ErrorStop):
+                errorStop = True
+                continue
+            if errorStop:
+                try:
+                    loc, exprtokens = e._parse( instring, loc, doActions )
+                except ParseSyntaxException:
+                    raise
+                except ParseBaseException as pe:
+                    pe.__traceback__ = None
+                    raise ParseSyntaxException._from_exception(pe)
+                except IndexError:
+                    raise ParseSyntaxException(instring, len(instring), self.errmsg, self)
+            else:
+                loc, exprtokens = e._parse( instring, loc, doActions )
+            if exprtokens or exprtokens.haskeys():
+                resultlist += exprtokens
+        return loc, resultlist
+
+    def __iadd__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #And( [ self, other ] )
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+            if not e.mayReturnEmpty:
+                break
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+
+class Or(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the expression that matches the longest string will be used.
+    May be constructed using the C{'^'} operator.
+
+    Example::
+        # construct Or using '^' operator
+        
+        number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789"))
+    prints::
+        [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(Or,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        matches = []
+        for e in self.exprs:
+            try:
+                loc2 = e.tryParse( instring, loc )
+            except ParseException as err:
+                err.__traceback__ = None
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+            else:
+                # save match among all matches, to retry longest to shortest
+                matches.append((loc2, e))
+
+        if matches:
+            matches.sort(key=lambda x: -x[0])
+            for _,e in matches:
+                try:
+                    return e._parse( instring, loc, doActions )
+                except ParseException as err:
+                    err.__traceback__ = None
+                    if err.loc > maxExcLoc:
+                        maxException = err
+                        maxExcLoc = err.loc
+
+        if maxException is not None:
+            maxException.msg = self.errmsg
+            raise maxException
+        else:
+            raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+
+    def __ixor__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #Or( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ^ ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class MatchFirst(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the first one listed is the one that will match.
+    May be constructed using the C{'|'} operator.
+
+    Example::
+        # construct MatchFirst using '|' operator
+        
+        # watch the order of expressions to match
+        number = Word(nums) | Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789")) #  Fail! -> [['123'], ['3'], ['1416'], ['789']]
+
+        # put more selective expression first
+        number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums)
+        print(number.searchString("123 3.1416 789")) #  Better -> [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(MatchFirst,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                ret = e._parse( instring, loc, doActions )
+                return ret
+            except ParseException as err:
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+
+        # only got here if no expression matched, raise exception for match that made it the furthest
+        else:
+            if maxException is not None:
+                maxException.msg = self.errmsg
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+    def __ior__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #MatchFirst( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " | ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class Each(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found, but in any order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'&'} operator.
+
+    Example::
+        color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN")
+        shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON")
+        integer = Word(nums)
+        shape_attr = "shape:" + shape_type("shape")
+        posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn")
+        color_attr = "color:" + color("color")
+        size_attr = "size:" + integer("size")
+
+        # use Each (using operator '&') to accept attributes in any order 
+        # (shape and posn are required, color and size are optional)
+        shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr)
+
+        shape_spec.runTests('''
+            shape: SQUARE color: BLACK posn: 100, 120
+            shape: CIRCLE size: 50 color: BLUE posn: 50,80
+            color:GREEN size:20 shape:TRIANGLE posn:20,40
+            '''
+            )
+    prints::
+        shape: SQUARE color: BLACK posn: 100, 120
+        ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']]
+        - color: BLACK
+        - posn: ['100', ',', '120']
+          - x: 100
+          - y: 120
+        - shape: SQUARE
+
+
+        shape: CIRCLE size: 50 color: BLUE posn: 50,80
+        ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']]
+        - color: BLUE
+        - posn: ['50', ',', '80']
+          - x: 50
+          - y: 80
+        - shape: CIRCLE
+        - size: 50
+
+
+        color: GREEN size: 20 shape: TRIANGLE posn: 20,40
+        ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']]
+        - color: GREEN
+        - posn: ['20', ',', '40']
+          - x: 20
+          - y: 40
+        - shape: TRIANGLE
+        - size: 20
+    """
+    def __init__( self, exprs, savelist = True ):
+        super(Each,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.skipWhitespace = True
+        self.initExprGroups = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.initExprGroups:
+            self.opt1map = dict((id(e.expr),e) for e in self.exprs if isinstance(e,Optional))
+            opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
+            opt2 = [ e for e in self.exprs if e.mayReturnEmpty and not isinstance(e,Optional)]
+            self.optionals = opt1 + opt2
+            self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
+            self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
+            self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
+            self.required += self.multirequired
+            self.initExprGroups = False
+        tmpLoc = loc
+        tmpReqd = self.required[:]
+        tmpOpt  = self.optionals[:]
+        matchOrder = []
+
+        keepMatching = True
+        while keepMatching:
+            tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
+            failed = []
+            for e in tmpExprs:
+                try:
+                    tmpLoc = e.tryParse( instring, tmpLoc )
+                except ParseException:
+                    failed.append(e)
+                else:
+                    matchOrder.append(self.opt1map.get(id(e),e))
+                    if e in tmpReqd:
+                        tmpReqd.remove(e)
+                    elif e in tmpOpt:
+                        tmpOpt.remove(e)
+            if len(failed) == len(tmpExprs):
+                keepMatching = False
+
+        if tmpReqd:
+            missing = ", ".join(_ustr(e) for e in tmpReqd)
+            raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
+
+        # add any unmatched Optionals, in case they have default values defined
+        matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
+
+        resultlist = []
+        for e in matchOrder:
+            loc,results = e._parse(instring,loc,doActions)
+            resultlist.append(results)
+
+        finalResults = sum(resultlist, ParseResults([]))
+        return loc, finalResults
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " & ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class ParseElementEnhance(ParserElement):
+    """
+    Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(ParseElementEnhance,self).__init__(savelist)
+        if isinstance( expr, basestring ):
+            if issubclass(ParserElement._literalStringClass, Token):
+                expr = ParserElement._literalStringClass(expr)
+            else:
+                expr = ParserElement._literalStringClass(Literal(expr))
+        self.expr = expr
+        self.strRepr = None
+        if expr is not None:
+            self.mayIndexError = expr.mayIndexError
+            self.mayReturnEmpty = expr.mayReturnEmpty
+            self.setWhitespaceChars( expr.whiteChars )
+            self.skipWhitespace = expr.skipWhitespace
+            self.saveAsList = expr.saveAsList
+            self.callPreparse = expr.callPreparse
+            self.ignoreExprs.extend(expr.ignoreExprs)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr is not None:
+            return self.expr._parse( instring, loc, doActions, callPreParse=False )
+        else:
+            raise ParseException("",loc,self.errmsg,self)
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        self.expr = self.expr.copy()
+        if self.expr is not None:
+            self.expr.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseElementEnhance, self).ignore( other )
+                if self.expr is not None:
+                    self.expr.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseElementEnhance, self).ignore( other )
+            if self.expr is not None:
+                self.expr.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def streamline( self ):
+        super(ParseElementEnhance,self).streamline()
+        if self.expr is not None:
+            self.expr.streamline()
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        if self in parseElementList:
+            raise RecursiveGrammarException( parseElementList+[self] )
+        subRecCheckList = parseElementList[:] + [ self ]
+        if self.expr is not None:
+            self.expr.checkRecursion( subRecCheckList )
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        if self.expr is not None:
+            self.expr.validate(tmp)
+        self.checkRecursion( [] )
+
+    def __str__( self ):
+        try:
+            return super(ParseElementEnhance,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None and self.expr is not None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
+        return self.strRepr
+
+
+class FollowedBy(ParseElementEnhance):
+    """
+    Lookahead matching of the given parse expression.  C{FollowedBy}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression matches at the current
+    position.  C{FollowedBy} always returns a null token list.
+
+    Example::
+        # use FollowedBy to match a label only if it is followed by a ':'
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint()
+    prints::
+        [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']]
+    """
+    def __init__( self, expr ):
+        super(FollowedBy,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self.expr.tryParse( instring, loc )
+        return loc, []
+
+
+class NotAny(ParseElementEnhance):
+    """
+    Lookahead to disallow matching with the given parse expression.  C{NotAny}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression does I{not} match at the current
+    position.  Also, C{NotAny} does I{not} skip over leading whitespace. C{NotAny}
+    always returns a null token list.  May be constructed using the '~' operator.
+
+    Example::
+        
+    """
+    def __init__( self, expr ):
+        super(NotAny,self).__init__(expr)
+        #~ self.leaveWhitespace()
+        self.skipWhitespace = False  # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
+        self.mayReturnEmpty = True
+        self.errmsg = "Found unwanted token, "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr.canParseNext(instring, loc):
+            raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "~{" + _ustr(self.expr) + "}"
+
+        return self.strRepr
+
+class _MultipleMatch(ParseElementEnhance):
+    def __init__( self, expr, stopOn=None):
+        super(_MultipleMatch, self).__init__(expr)
+        self.saveAsList = True
+        ender = stopOn
+        if isinstance(ender, basestring):
+            ender = ParserElement._literalStringClass(ender)
+        self.not_ender = ~ender if ender is not None else None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self_expr_parse = self.expr._parse
+        self_skip_ignorables = self._skipIgnorables
+        check_ender = self.not_ender is not None
+        if check_ender:
+            try_not_ender = self.not_ender.tryParse
+        
+        # must be at least one (but first see if we are the stopOn sentinel;
+        # if so, fail)
+        if check_ender:
+            try_not_ender(instring, loc)
+        loc, tokens = self_expr_parse( instring, loc, doActions, callPreParse=False )
+        try:
+            hasIgnoreExprs = (not not self.ignoreExprs)
+            while 1:
+                if check_ender:
+                    try_not_ender(instring, loc)
+                if hasIgnoreExprs:
+                    preloc = self_skip_ignorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self_expr_parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.haskeys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+        
+class OneOrMore(_MultipleMatch):
+    """
+    Repetition of one or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match one or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: BLACK"
+        OneOrMore(attr_expr).parseString(text).pprint()  # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']]
+
+        # use stopOn attribute for OneOrMore to avoid reading label string as part of the data
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']]
+        
+        # could also be written as
+        (attr_expr * (1,)).parseString(text).pprint()
+    """
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + _ustr(self.expr) + "}..."
+
+        return self.strRepr
+
+class ZeroOrMore(_MultipleMatch):
+    """
+    Optional repetition of zero or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match zero or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example: similar to L{OneOrMore}
+    """
+    def __init__( self, expr, stopOn=None):
+        super(ZeroOrMore,self).__init__(expr, stopOn=stopOn)
+        self.mayReturnEmpty = True
+        
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            return super(ZeroOrMore, self).parseImpl(instring, loc, doActions)
+        except (ParseException,IndexError):
+            return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]..."
+
+        return self.strRepr
+
+class _NullToken(object):
+    def __bool__(self):
+        return False
+    __nonzero__ = __bool__
+    def __str__(self):
+        return ""
+
+_optionalNotMatched = _NullToken()
+class Optional(ParseElementEnhance):
+    """
+    Optional matching of the given expression.
+
+    Parameters:
+     - expr - expression that must match zero or more times
+     - default (optional) - value to be returned if the optional expression is not found.
+
+    Example::
+        # US postal code can be a 5-digit zip, plus optional 4-digit qualifier
+        zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4)))
+        zip.runTests('''
+            # traditional ZIP code
+            12345
+            
+            # ZIP+4 form
+            12101-0001
+            
+            # invalid ZIP
+            98765-
+            ''')
+    prints::
+        # traditional ZIP code
+        12345
+        ['12345']
+
+        # ZIP+4 form
+        12101-0001
+        ['12101-0001']
+
+        # invalid ZIP
+        98765-
+             ^
+        FAIL: Expected end of text (at char 5), (line:1, col:6)
+    """
+    def __init__( self, expr, default=_optionalNotMatched ):
+        super(Optional,self).__init__( expr, savelist=False )
+        self.saveAsList = self.expr.saveAsList
+        self.defaultValue = default
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        except (ParseException,IndexError):
+            if self.defaultValue is not _optionalNotMatched:
+                if self.expr.resultsName:
+                    tokens = ParseResults([ self.defaultValue ])
+                    tokens[self.expr.resultsName] = self.defaultValue
+                else:
+                    tokens = [ self.defaultValue ]
+            else:
+                tokens = []
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]"
+
+        return self.strRepr
+
+class SkipTo(ParseElementEnhance):
+    """
+    Token for skipping over all undefined text until the matched expression is found.
+
+    Parameters:
+     - expr - target expression marking the end of the data to be skipped
+     - include - (default=C{False}) if True, the target expression is also parsed 
+          (the skipped text and target expression are returned as a 2-element list).
+     - ignore - (default=C{None}) used to define grammars (typically quoted strings and 
+          comments) that might contain false matches to the target expression
+     - failOn - (default=C{None}) define expressions that are not allowed to be 
+          included in the skipped test; if found before the target expression is found, 
+          the SkipTo is not a match
+
+    Example::
+        report = '''
+            Outstanding Issues Report - 1 Jan 2000
+
+               # | Severity | Description                               |  Days Open
+            -----+----------+-------------------------------------------+-----------
+             101 | Critical | Intermittent system crash                 |          6
+              94 | Cosmetic | Spelling error on Login ('log|n')         |         14
+              79 | Minor    | System slow when running too many reports |         47
+            '''
+        integer = Word(nums)
+        SEP = Suppress('|')
+        # use SkipTo to simply match everything up until the next SEP
+        # - ignore quoted strings, so that a '|' character inside a quoted string does not match
+        # - parse action will call token.strip() for each matched token, i.e., the description body
+        string_data = SkipTo(SEP, ignore=quotedString)
+        string_data.setParseAction(tokenMap(str.strip))
+        ticket_expr = (integer("issue_num") + SEP 
+                      + string_data("sev") + SEP 
+                      + string_data("desc") + SEP 
+                      + integer("days_open"))
+        
+        for tkt in ticket_expr.searchString(report):
+            print tkt.dump()
+    prints::
+        ['101', 'Critical', 'Intermittent system crash', '6']
+        - days_open: 6
+        - desc: Intermittent system crash
+        - issue_num: 101
+        - sev: Critical
+        ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14']
+        - days_open: 14
+        - desc: Spelling error on Login ('log|n')
+        - issue_num: 94
+        - sev: Cosmetic
+        ['79', 'Minor', 'System slow when running too many reports', '47']
+        - days_open: 47
+        - desc: System slow when running too many reports
+        - issue_num: 79
+        - sev: Minor
+    """
+    def __init__( self, other, include=False, ignore=None, failOn=None ):
+        super( SkipTo, self ).__init__( other )
+        self.ignoreExpr = ignore
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.includeMatch = include
+        self.asList = False
+        if isinstance(failOn, basestring):
+            self.failOn = ParserElement._literalStringClass(failOn)
+        else:
+            self.failOn = failOn
+        self.errmsg = "No match found for "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        startloc = loc
+        instrlen = len(instring)
+        expr = self.expr
+        expr_parse = self.expr._parse
+        self_failOn_canParseNext = self.failOn.canParseNext if self.failOn is not None else None
+        self_ignoreExpr_tryParse = self.ignoreExpr.tryParse if self.ignoreExpr is not None else None
+        
+        tmploc = loc
+        while tmploc <= instrlen:
+            if self_failOn_canParseNext is not None:
+                # break if failOn expression matches
+                if self_failOn_canParseNext(instring, tmploc):
+                    break
+                    
+            if self_ignoreExpr_tryParse is not None:
+                # advance past ignore expressions
+                while 1:
+                    try:
+                        tmploc = self_ignoreExpr_tryParse(instring, tmploc)
+                    except ParseBaseException:
+                        break
+            
+            try:
+                expr_parse(instring, tmploc, doActions=False, callPreParse=False)
+            except (ParseException, IndexError):
+                # no match, advance loc in string
+                tmploc += 1
+            else:
+                # matched skipto expr, done
+                break
+
+        else:
+            # ran off the end of the input string without matching skipto expr, fail
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        # build up return values
+        loc = tmploc
+        skiptext = instring[startloc:loc]
+        skipresult = ParseResults(skiptext)
+        
+        if self.includeMatch:
+            loc, mat = expr_parse(instring,loc,doActions,callPreParse=False)
+            skipresult += mat
+
+        return loc, skipresult
+
+class Forward(ParseElementEnhance):
+    """
+    Forward declaration of an expression to be defined later -
+    used for recursive grammars, such as algebraic infix notation.
+    When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
+
+    Note: take care when assigning to C{Forward} not to overlook precedence of operators.
+    Specifically, '|' has a lower precedence than '<<', so that::
+        fwdExpr << a | b | c
+    will actually be evaluated as::
+        (fwdExpr << a) | b | c
+    thereby leaving b and c out as parseable alternatives.  It is recommended that you
+    explicitly group the values inserted into the C{Forward}::
+        fwdExpr << (a | b | c)
+    Converting to use the '<<=' operator instead will avoid this problem.
+
+    See L{ParseResults.pprint} for an example of a recursive parser created using
+    C{Forward}.
+    """
+    def __init__( self, other=None ):
+        super(Forward,self).__init__( other, savelist=False )
+
+    def __lshift__( self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass(other)
+        self.expr = other
+        self.strRepr = None
+        self.mayIndexError = self.expr.mayIndexError
+        self.mayReturnEmpty = self.expr.mayReturnEmpty
+        self.setWhitespaceChars( self.expr.whiteChars )
+        self.skipWhitespace = self.expr.skipWhitespace
+        self.saveAsList = self.expr.saveAsList
+        self.ignoreExprs.extend(self.expr.ignoreExprs)
+        return self
+        
+    def __ilshift__(self, other):
+        return self << other
+    
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        return self
+
+    def streamline( self ):
+        if not self.streamlined:
+            self.streamlined = True
+            if self.expr is not None:
+                self.expr.streamline()
+        return self
+
+    def validate( self, validateTrace=[] ):
+        if self not in validateTrace:
+            tmp = validateTrace[:]+[self]
+            if self.expr is not None:
+                self.expr.validate(tmp)
+        self.checkRecursion([])
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+        return self.__class__.__name__ + ": ..."
+
+        # stubbed out for now - creates awful memory and perf issues
+        self._revertClass = self.__class__
+        self.__class__ = _ForwardNoRecurse
+        try:
+            if self.expr is not None:
+                retString = _ustr(self.expr)
+            else:
+                retString = "None"
+        finally:
+            self.__class__ = self._revertClass
+        return self.__class__.__name__ + ": " + retString
+
+    def copy(self):
+        if self.expr is not None:
+            return super(Forward,self).copy()
+        else:
+            ret = Forward()
+            ret <<= self
+            return ret
+
+class _ForwardNoRecurse(Forward):
+    def __str__( self ):
+        return "..."
+
+class TokenConverter(ParseElementEnhance):
+    """
+    Abstract subclass of C{ParseExpression}, for converting parsed results.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(TokenConverter,self).__init__( expr )#, savelist )
+        self.saveAsList = False
+
+class Combine(TokenConverter):
+    """
+    Converter to concatenate all matching tokens to a single string.
+    By default, the matching patterns must also be contiguous in the input string;
+    this can be disabled by specifying C{'adjacent=False'} in the constructor.
+
+    Example::
+        real = Word(nums) + '.' + Word(nums)
+        print(real.parseString('3.1416')) # -> ['3', '.', '1416']
+        # will also erroneously match the following
+        print(real.parseString('3. 1416')) # -> ['3', '.', '1416']
+
+        real = Combine(Word(nums) + '.' + Word(nums))
+        print(real.parseString('3.1416')) # -> ['3.1416']
+        # no match when there are internal spaces
+        print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...)
+    """
+    def __init__( self, expr, joinString="", adjacent=True ):
+        super(Combine,self).__init__( expr )
+        # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
+        if adjacent:
+            self.leaveWhitespace()
+        self.adjacent = adjacent
+        self.skipWhitespace = True
+        self.joinString = joinString
+        self.callPreparse = True
+
+    def ignore( self, other ):
+        if self.adjacent:
+            ParserElement.ignore(self, other)
+        else:
+            super( Combine, self).ignore( other )
+        return self
+
+    def postParse( self, instring, loc, tokenlist ):
+        retToks = tokenlist.copy()
+        del retToks[:]
+        retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
+
+        if self.resultsName and retToks.haskeys():
+            return [ retToks ]
+        else:
+            return retToks
+
+class Group(TokenConverter):
+    """
+    Converter to return the matched tokens as a list - useful for returning tokens of C{L{ZeroOrMore}} and C{L{OneOrMore}} expressions.
+
+    Example::
+        ident = Word(alphas)
+        num = Word(nums)
+        term = ident | num
+        func = ident + Optional(delimitedList(term))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', 'a', 'b', '100']
+
+        func = ident + Group(Optional(delimitedList(term)))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', ['a', 'b', '100']]
+    """
+    def __init__( self, expr ):
+        super(Group,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        return [ tokenlist ]
+
+class Dict(TokenConverter):
+    """
+    Converter to return a repetitive expression as a list, but also as a dictionary.
+    Each element can also be referenced using the first token in the expression as its key.
+    Useful for tabular report scraping when the first column can be used as a item key.
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        # print attributes as plain groups
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names
+        result = Dict(OneOrMore(Group(attr_expr))).parseString(text)
+        print(result.dump())
+        
+        # access named fields as dict entries, or output as dict
+        print(result['shape'])        
+        print(result.asDict())
+    prints::
+        ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap']
+
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'}
+    See more examples at L{ParseResults} of accessing fields by results name.
+    """
+    def __init__( self, expr ):
+        super(Dict,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        for i,tok in enumerate(tokenlist):
+            if len(tok) == 0:
+                continue
+            ikey = tok[0]
+            if isinstance(ikey,int):
+                ikey = _ustr(tok[0]).strip()
+            if len(tok)==1:
+                tokenlist[ikey] = _ParseResultsWithOffset("",i)
+            elif len(tok)==2 and not isinstance(tok[1],ParseResults):
+                tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
+            else:
+                dictvalue = tok.copy() #ParseResults(i)
+                del dictvalue[0]
+                if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.haskeys()):
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
+                else:
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
+
+        if self.resultsName:
+            return [ tokenlist ]
+        else:
+            return tokenlist
+
+
+class Suppress(TokenConverter):
+    """
+    Converter for ignoring the results of a parsed expression.
+
+    Example::
+        source = "a, b, c,d"
+        wd = Word(alphas)
+        wd_list1 = wd + ZeroOrMore(',' + wd)
+        print(wd_list1.parseString(source))
+
+        # often, delimiters that are useful during parsing are just in the
+        # way afterward - use Suppress to keep them out of the parsed output
+        wd_list2 = wd + ZeroOrMore(Suppress(',') + wd)
+        print(wd_list2.parseString(source))
+    prints::
+        ['a', ',', 'b', ',', 'c', ',', 'd']
+        ['a', 'b', 'c', 'd']
+    (See also L{delimitedList}.)
+    """
+    def postParse( self, instring, loc, tokenlist ):
+        return []
+
+    def suppress( self ):
+        return self
+
+
+class OnlyOnce(object):
+    """
+    Wrapper for parse actions, to ensure they are only called once.
+    """
+    def __init__(self, methodCall):
+        self.callable = _trim_arity(methodCall)
+        self.called = False
+    def __call__(self,s,l,t):
+        if not self.called:
+            results = self.callable(s,l,t)
+            self.called = True
+            return results
+        raise ParseException(s,l,"")
+    def reset(self):
+        self.called = False
+
+def traceParseAction(f):
+    """
+    Decorator for debugging parse actions. 
+    
+    When the parse action is called, this decorator will print C{">> entering I{method-name}(line:I{current_source_line}, I{parse_location}, I{matched_tokens})".}
+    When the parse action completes, the decorator will print C{"<<"} followed by the returned value, or any exception that the parse action raised.
+
+    Example::
+        wd = Word(alphas)
+
+        @traceParseAction
+        def remove_duplicate_chars(tokens):
+            return ''.join(sorted(set(''.join(tokens)))
+
+        wds = OneOrMore(wd).setParseAction(remove_duplicate_chars)
+        print(wds.parseString("slkdjs sld sldd sdlf sdljf"))
+    prints::
+        >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {}))
+        <<leaving remove_duplicate_chars (ret: 'dfjkls')
+        ['dfjkls']
+    """
+    f = _trim_arity(f)
+    def z(*paArgs):
+        thisFunc = f.__name__
+        s,l,t = paArgs[-3:]
+        if len(paArgs)>3:
+            thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
+        sys.stderr.write( ">>entering %s(line: '%s', %d, %r)\n" % (thisFunc,line(l,s),l,t) )
+        try:
+            ret = f(*paArgs)
+        except Exception as exc:
+            sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
+            raise
+        sys.stderr.write( "<<leaving %s (ret: %r)\n" % (thisFunc,ret) )
+        return ret
+    try:
+        z.__name__ = f.__name__
+    except AttributeError:
+        pass
+    return z
+
+#
+# global helpers
+#
+def delimitedList( expr, delim=",", combine=False ):
+    """
+    Helper to define a delimited list of expressions - the delimiter defaults to ','.
+    By default, the list elements and delimiters can have intervening whitespace, and
+    comments, but this can be overridden by passing C{combine=True} in the constructor.
+    If C{combine} is set to C{True}, the matching tokens are returned as a single token
+    string, with the delimiters included; otherwise, the matching tokens are returned
+    as a list of tokens, with the delimiters suppressed.
+
+    Example::
+        delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc']
+        delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE']
+    """
+    dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
+    if combine:
+        return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
+    else:
+        return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
+
+def countedArray( expr, intExpr=None ):
+    """
+    Helper to define a counted list of expressions.
+    This helper defines a pattern of the form::
+        integer expr expr expr...
+    where the leading integer tells how many expr expressions follow.
+    The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
+    
+    If C{intExpr} is specified, it should be a pyparsing expression that produces an integer value.
+
+    Example::
+        countedArray(Word(alphas)).parseString('2 ab cd ef')  # -> ['ab', 'cd']
+
+        # in this parser, the leading integer value is given in binary,
+        # '10' indicating that 2 values are in the array
+        binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2))
+        countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef')  # -> ['ab', 'cd']
+    """
+    arrayExpr = Forward()
+    def countFieldParseAction(s,l,t):
+        n = t[0]
+        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
+        return []
+    if intExpr is None:
+        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
+    else:
+        intExpr = intExpr.copy()
+    intExpr.setName("arrayLen")
+    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
+    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...')
+
+def _flatten(L):
+    ret = []
+    for i in L:
+        if isinstance(i,list):
+            ret.extend(_flatten(i))
+        else:
+            ret.append(i)
+    return ret
+
+def matchPreviousLiteral(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousLiteral(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
+    previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
+    If this is not desired, use C{matchPreviousExpr}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    def copyTokenToRepeater(s,l,t):
+        if t:
+            if len(t) == 1:
+                rep << t[0]
+            else:
+                # flatten t tokens
+                tflat = _flatten(t.asList())
+                rep << And(Literal(tt) for tt in tflat)
+        else:
+            rep << Empty()
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def matchPreviousExpr(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousExpr(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
+    expressions, will I{not} match the leading C{"1:1"} in C{"1:10"};
+    the expressions are evaluated first, and then compared, so
+    C{"1"} is compared with C{"10"}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    e2 = expr.copy()
+    rep <<= e2
+    def copyTokenToRepeater(s,l,t):
+        matchTokens = _flatten(t.asList())
+        def mustMatchTheseTokens(s,l,t):
+            theseTokens = _flatten(t.asList())
+            if  theseTokens != matchTokens:
+                raise ParseException("",0,"")
+        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def _escapeRegexRangeChars(s):
+    #~  escape these chars: ^-]
+    for c in r"\^-]":
+        s = s.replace(c,_bslash+c)
+    s = s.replace("\n",r"\n")
+    s = s.replace("\t",r"\t")
+    return _ustr(s)
+
+def oneOf( strs, caseless=False, useRegex=True ):
+    """
+    Helper to quickly define a set of alternative Literals, and makes sure to do
+    longest-first testing when there is a conflict, regardless of the input order,
+    but returns a C{L{MatchFirst}} for best performance.
+
+    Parameters:
+     - strs - a string of space-delimited literals, or a collection of string literals
+     - caseless - (default=C{False}) - treat all literals as caseless
+     - useRegex - (default=C{True}) - as an optimization, will generate a Regex
+          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
+          if creating a C{Regex} raises an exception)
+
+    Example::
+        comp_oper = oneOf("< = > <= >= !=")
+        var = Word(alphas)
+        number = Word(nums)
+        term = var | number
+        comparison_expr = term + comp_oper + term
+        print(comparison_expr.searchString("B = 12  AA=23 B<=AA AA>12"))
+    prints::
+        [['B', '=', '12'], ['AA', '=', '23'], ['B', '<=', 'AA'], ['AA', '>', '12']]
+    """
+    if caseless:
+        isequal = ( lambda a,b: a.upper() == b.upper() )
+        masks = ( lambda a,b: b.upper().startswith(a.upper()) )
+        parseElementClass = CaselessLiteral
+    else:
+        isequal = ( lambda a,b: a == b )
+        masks = ( lambda a,b: b.startswith(a) )
+        parseElementClass = Literal
+
+    symbols = []
+    if isinstance(strs,basestring):
+        symbols = strs.split()
+    elif isinstance(strs, collections.Iterable):
+        symbols = list(strs)
+    else:
+        warnings.warn("Invalid argument to oneOf, expected string or iterable",
+                SyntaxWarning, stacklevel=2)
+    if not symbols:
+        return NoMatch()
+
+    i = 0
+    while i < len(symbols)-1:
+        cur = symbols[i]
+        for j,other in enumerate(symbols[i+1:]):
+            if ( isequal(other, cur) ):
+                del symbols[i+j+1]
+                break
+            elif ( masks(cur, other) ):
+                del symbols[i+j+1]
+                symbols.insert(i,other)
+                cur = other
+                break
+        else:
+            i += 1
+
+    if not caseless and useRegex:
+        #~ print (strs,"->", "|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
+        try:
+            if len(symbols)==len("".join(symbols)):
+                return Regex( "[%s]" % "".join(_escapeRegexRangeChars(sym) for sym in symbols) ).setName(' | '.join(symbols))
+            else:
+                return Regex( "|".join(re.escape(sym) for sym in symbols) ).setName(' | '.join(symbols))
+        except Exception:
+            warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
+                    SyntaxWarning, stacklevel=2)
+
+
+    # last resort, just use MatchFirst
+    return MatchFirst(parseElementClass(sym) for sym in symbols).setName(' | '.join(symbols))
+
+def dictOf( key, value ):
+    """
+    Helper to easily and clearly define a dictionary by specifying the respective patterns
+    for the key and value.  Takes care of defining the C{L{Dict}}, C{L{ZeroOrMore}}, and C{L{Group}} tokens
+    in the proper order.  The key pattern can include delimiting markers or punctuation,
+    as long as they are suppressed, thereby leaving the significant key text.  The value
+    pattern can include named results, so that the C{Dict} results can include named token
+    fields.
+
+    Example::
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        attr_label = label
+        attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)
+
+        # similar to Dict, but simpler call format
+        result = dictOf(attr_label, attr_value).parseString(text)
+        print(result.dump())
+        print(result['shape'])
+        print(result.shape)  # object attribute access works too
+        print(result.asDict())
+    prints::
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        SQUARE
+        {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'}
+    """
+    return Dict( ZeroOrMore( Group ( key + value ) ) )
+
+def originalTextFor(expr, asString=True):
+    """
+    Helper to return the original, untokenized text for a given expression.  Useful to
+    restore the parsed fields of an HTML start tag into the raw tag text itself, or to
+    revert separate tokens with intervening whitespace back to the original matching
+    input text. By default, returns astring containing the original parsed text.  
+       
+    If the optional C{asString} argument is passed as C{False}, then the return value is a 
+    C{L{ParseResults}} containing any results names that were originally matched, and a 
+    single token containing the original matched text from the input string.  So if 
+    the expression passed to C{L{originalTextFor}} contains expressions with defined
+    results names, you must set C{asString} to C{False} if you want to preserve those
+    results name values.
+
+    Example::
+        src = "this is test <b> bold <i>text</i> </b> normal text "
+        for tag in ("b","i"):
+            opener,closer = makeHTMLTags(tag)
+            patt = originalTextFor(opener + SkipTo(closer) + closer)
+            print(patt.searchString(src)[0])
+    prints::
+        ['<b> bold <i>text</i> </b>']
+        ['<i>text</i>']
+    """
+    locMarker = Empty().setParseAction(lambda s,loc,t: loc)
+    endlocMarker = locMarker.copy()
+    endlocMarker.callPreparse = False
+    matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
+    if asString:
+        extractText = lambda s,l,t: s[t._original_start:t._original_end]
+    else:
+        def extractText(s,l,t):
+            t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]]
+    matchExpr.setParseAction(extractText)
+    matchExpr.ignoreExprs = expr.ignoreExprs
+    return matchExpr
+
+def ungroup(expr): 
+    """
+    Helper to undo pyparsing's default grouping of And expressions, even
+    if all but one are non-empty.
+    """
+    return TokenConverter(expr).setParseAction(lambda t:t[0])
+
+def locatedExpr(expr):
+    """
+    Helper to decorate a returned token with its starting and ending locations in the input string.
+    This helper adds the following results names:
+     - locn_start = location where matched expression begins
+     - locn_end = location where matched expression ends
+     - value = the actual parsed results
+
+    Be careful if the input text contains C{<TAB>} characters, you may want to call
+    C{L{ParserElement.parseWithTabs}}
+
+    Example::
+        wd = Word(alphas)
+        for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"):
+            print(match)
+    prints::
+        [[0, 'ljsdf', 5]]
+        [[8, 'lksdjjf', 15]]
+        [[18, 'lkkjj', 23]]
+    """
+    locator = Empty().setParseAction(lambda s,l,t: l)
+    return Group(locator("locn_start") + expr("value") + locator.copy().leaveWhitespace()("locn_end"))
+
+
+# convenience constants for positional expressions
+empty       = Empty().setName("empty")
+lineStart   = LineStart().setName("lineStart")
+lineEnd     = LineEnd().setName("lineEnd")
+stringStart = StringStart().setName("stringStart")
+stringEnd   = StringEnd().setName("stringEnd")
+
+_escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
+_escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0].lstrip(r'\0x'),16)))
+_escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
+_singleChar = _escapedPunc | _escapedHexChar | _escapedOctChar | Word(printables, excludeChars=r'\]', exact=1) | Regex(r"\w", re.UNICODE)
+_charRange = Group(_singleChar + Suppress("-") + _singleChar)
+_reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange | _singleChar ) ).setResultsName("body") + "]"
+
+def srange(s):
+    r"""
+    Helper to easily define string ranges for use in Word construction.  Borrows
+    syntax from regexp '[]' string range definitions::
+        srange("[0-9]")   -> "0123456789"
+        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
+        srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
+    The input string must be enclosed in []'s, and the returned string is the expanded
+    character set joined into a single string.
+    The values enclosed in the []'s may be:
+     - a single character
+     - an escaped character with a leading backslash (such as C{\-} or C{\]})
+     - an escaped hex character with a leading C{'\x'} (C{\x21}, which is a C{'!'} character) 
+         (C{\0x##} is also supported for backwards compatibility) 
+     - an escaped octal character with a leading C{'\0'} (C{\041}, which is a C{'!'} character)
+     - a range of any of the above, separated by a dash (C{'a-z'}, etc.)
+     - any combination of the above (C{'aeiouy'}, C{'a-zA-Z0-9_$'}, etc.)
+    """
+    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
+    try:
+        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
+    except Exception:
+        return ""
+
+def matchOnlyAtCol(n):
+    """
+    Helper method for defining parse actions that require matching at a specific
+    column in the input text.
+    """
+    def verifyCol(strg,locn,toks):
+        if col(locn,strg) != n:
+            raise ParseException(strg,locn,"matched token not at column %d" % n)
+    return verifyCol
+
+def replaceWith(replStr):
+    """
+    Helper method for common parse actions that simply return a literal value.  Especially
+    useful when used with C{L{transformString<ParserElement.transformString>}()}.
+
+    Example::
+        num = Word(nums).setParseAction(lambda toks: int(toks[0]))
+        na = oneOf("N/A NA").setParseAction(replaceWith(math.nan))
+        term = na | num
+        
+        OneOrMore(term).parseString("324 234 N/A 234") # -> [324, 234, nan, 234]
+    """
+    return lambda s,l,t: [replStr]
+
+def removeQuotes(s,l,t):
+    """
+    Helper parse action for removing quotation marks from parsed quoted strings.
+
+    Example::
+        # by default, quotation marks are included in parsed results
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"]
+
+        # use removeQuotes to strip quotation marks from parsed results
+        quotedString.setParseAction(removeQuotes)
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"]
+    """
+    return t[0][1:-1]
+
+def tokenMap(func, *args):
+    """
+    Helper to define a parse action by mapping a function to all elements of a ParseResults list.If any additional 
+    args are passed, they are forwarded to the given function as additional arguments after
+    the token, as in C{hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))}, which will convert the
+    parsed data to an integer using base 16.
+
+    Example (compare the last to example in L{ParserElement.transformString}::
+        hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16))
+        hex_ints.runTests('''
+            00 11 22 aa FF 0a 0d 1a
+            ''')
+        
+        upperword = Word(alphas).setParseAction(tokenMap(str.upper))
+        OneOrMore(upperword).runTests('''
+            my kingdom for a horse
+            ''')
+
+        wd = Word(alphas).setParseAction(tokenMap(str.title))
+        OneOrMore(wd).setParseAction(' '.join).runTests('''
+            now is the winter of our discontent made glorious summer by this sun of york
+            ''')
+    prints::
+        00 11 22 aa FF 0a 0d 1a
+        [0, 17, 34, 170, 255, 10, 13, 26]
+
+        my kingdom for a horse
+        ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE']
+
+        now is the winter of our discontent made glorious summer by this sun of york
+        ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York']
+    """
+    def pa(s,l,t):
+        return [func(tokn, *args) for tokn in t]
+
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    pa.__name__ = func_name
+
+    return pa
+
+upcaseTokens = tokenMap(lambda t: _ustr(t).upper())
+"""(Deprecated) Helper parse action to convert tokens to upper case. Deprecated in favor of L{pyparsing_common.upcaseTokens}"""
+
+downcaseTokens = tokenMap(lambda t: _ustr(t).lower())
+"""(Deprecated) Helper parse action to convert tokens to lower case. Deprecated in favor of L{pyparsing_common.downcaseTokens}"""
+    
+def _makeTags(tagStr, xml):
+    """Internal helper to construct opening and closing tag expressions, given a tag name"""
+    if isinstance(tagStr,basestring):
+        resname = tagStr
+        tagStr = Keyword(tagStr, caseless=not xml)
+    else:
+        resname = tagStr.name
+
+    tagAttrName = Word(alphas,alphanums+"_-:")
+    if (xml):
+        tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    else:
+        printablesLessRAbrack = "".join(c for c in printables if c not in ">")
+        tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) | Word(printablesLessRAbrack)
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
+                Optional( Suppress("=") + tagAttrValue ) ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    closeTag = Combine(_L("</") + tagStr + ">")
+
+    openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % resname)
+    closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % resname)
+    openTag.tag = resname
+    closeTag.tag = resname
+    return openTag, closeTag
+
+def makeHTMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for HTML, given a tag name. Matches
+    tags in either upper or lower case, attributes with namespaces and with quoted or unquoted values.
+
+    Example::
+        text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+        # makeHTMLTags returns pyparsing expressions for the opening and closing tags as a 2-tuple
+        a,a_end = makeHTMLTags("A")
+        link_expr = a + SkipTo(a_end)("link_text") + a_end
+        
+        for link in link_expr.searchString(text):
+            # attributes in the <A> tag (like "href" shown here) are also accessible as named results
+            print(link.link_text, '->', link.href)
+    prints::
+        pyparsing -> http://pyparsing.wikispaces.com
+    """
+    return _makeTags( tagStr, False )
+
+def makeXMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for XML, given a tag name. Matches
+    tags only in the given upper/lower case.
+
+    Example: similar to L{makeHTMLTags}
+    """
+    return _makeTags( tagStr, True )
+
+def withAttribute(*args,**attrDict):
+    """
+    Helper to create a validating parse action to be used with start tags created
+    with C{L{makeXMLTags}} or C{L{makeHTMLTags}}. Use C{withAttribute} to qualify a starting tag
+    with a required attribute value, to avoid false matches on common tags such as
+    C{<TD>} or C{<DIV>}.
+
+    Call C{withAttribute} with a series of attribute names and values. Specify the list
+    of filter attributes names and values as:
+     - keyword arguments, as in C{(align="right")}, or
+     - as an explicit dict with C{**} operator, when an attribute name is also a Python
+          reserved word, as in C{**{"class":"Customer", "align":"right"}}
+     - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
+    For attribute names with a namespace prefix, you must use the second form.  Attribute
+    names are matched insensitive to upper/lower case.
+       
+    If just testing for C{class} (with or without a namespace), use C{L{withClass}}.
+
+    To verify that the attribute exists, but without specifying a value, pass
+    C{withAttribute.ANY_VALUE} as the value.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div type="grid">1 4 0 1 0</div>
+            <div type="graph">1,3 2,3 1,1</div>
+            <div>this has no type</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+
+        # only match div tag having a type attribute with value "grid"
+        div_grid = div().setParseAction(withAttribute(type="grid"))
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        # construct a match with any div tag having a type attribute, regardless of the value
+        div_any_type = div().setParseAction(withAttribute(type=withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    if args:
+        attrs = args[:]
+    else:
+        attrs = attrDict.items()
+    attrs = [(k,v) for k,v in attrs]
+    def pa(s,l,tokens):
+        for attrName,attrValue in attrs:
+            if attrName not in tokens:
+                raise ParseException(s,l,"no matching attribute " + attrName)
+            if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
+                raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
+                                            (attrName, tokens[attrName], attrValue))
+    return pa
+withAttribute.ANY_VALUE = object()
+
+def withClass(classname, namespace=''):
+    """
+    Simplified version of C{L{withAttribute}} when matching on a div class - made
+    difficult because C{class} is a reserved word in Python.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div class="grid">1 4 0 1 0</div>
+            <div class="graph">1,3 2,3 1,1</div>
+            <div>this <div> has no class</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+        div_grid = div().setParseAction(withClass("grid"))
+        
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        div_any_type = div().setParseAction(withClass(withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    classattr = "%s:class" % namespace if namespace else "class"
+    return withAttribute(**{classattr : classname})        
+
+opAssoc = _Constants()
+opAssoc.LEFT = object()
+opAssoc.RIGHT = object()
+
+def infixNotation( baseExpr, opList, lpar=Suppress('('), rpar=Suppress(')') ):
+    """
+    Helper method for constructing grammars of expressions made up of
+    operators working in a precedence hierarchy.  Operators may be unary or
+    binary, left- or right-associative.  Parse actions can also be attached
+    to operator expressions. The generated parser will also recognize the use 
+    of parentheses to override operator precedences (see example below).
+    
+    Note: if you define a deep operator list, you may see performance issues
+    when using infixNotation. See L{ParserElement.enablePackrat} for a
+    mechanism to potentially improve your parser performance.
+
+    Parameters:
+     - baseExpr - expression representing the most basic element for the nested
+     - opList - list of tuples, one for each operator precedence level in the
+      expression grammar; each tuple is of the form
+      (opExpr, numTerms, rightLeftAssoc, parseAction), where:
+       - opExpr is the pyparsing expression for the operator;
+          may also be a string, which will be converted to a Literal;
+          if numTerms is 3, opExpr is a tuple of two expressions, for the
+          two operators separating the 3 terms
+       - numTerms is the number of terms for this operator (must
+          be 1, 2, or 3)
+       - rightLeftAssoc is the indicator whether the operator is
+          right or left associative, using the pyparsing-defined
+          constants C{opAssoc.RIGHT} and C{opAssoc.LEFT}.
+       - parseAction is the parse action to be associated with
+          expressions matching this operator expression (the
+          parse action tuple member may be omitted)
+     - lpar - expression for matching left-parentheses (default=C{Suppress('(')})
+     - rpar - expression for matching right-parentheses (default=C{Suppress(')')})
+
+    Example::
+        # simple example of four-function arithmetic with ints and variable names
+        integer = pyparsing_common.signed_integer
+        varname = pyparsing_common.identifier 
+        
+        arith_expr = infixNotation(integer | varname,
+            [
+            ('-', 1, opAssoc.RIGHT),
+            (oneOf('* /'), 2, opAssoc.LEFT),
+            (oneOf('+ -'), 2, opAssoc.LEFT),
+            ])
+        
+        arith_expr.runTests('''
+            5+3*6
+            (5+3)*6
+            -2--11
+            ''', fullDump=False)
+    prints::
+        5+3*6
+        [[5, '+', [3, '*', 6]]]
+
+        (5+3)*6
+        [[[5, '+', 3], '*', 6]]
+
+        -2--11
+        [[['-', 2], '-', ['-', 11]]]
+    """
+    ret = Forward()
+    lastExpr = baseExpr | ( lpar + ret + rpar )
+    for i,operDef in enumerate(opList):
+        opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
+        termName = "%s term" % opExpr if arity < 3 else "%s%s term" % opExpr
+        if arity == 3:
+            if opExpr is None or len(opExpr) != 2:
+                raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
+            opExpr1, opExpr2 = opExpr
+        thisExpr = Forward().setName(termName)
+        if rightLeftAssoc == opAssoc.LEFT:
+            if arity == 1:
+                matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
+                            Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        elif rightLeftAssoc == opAssoc.RIGHT:
+            if arity == 1:
+                # try to avoid LR with this extra test
+                if not isinstance(opExpr, Optional):
+                    opExpr = Optional(opExpr)
+                matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
+                            Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        else:
+            raise ValueError("operator must indicate right or left associativity")
+        if pa:
+            matchExpr.setParseAction( pa )
+        thisExpr <<= ( matchExpr.setName(termName) | lastExpr )
+        lastExpr = thisExpr
+    ret <<= lastExpr
+    return ret
+
+operatorPrecedence = infixNotation
+"""(Deprecated) Former name of C{L{infixNotation}}, will be dropped in a future release."""
+
+dblQuotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"').setName("string enclosed in double quotes")
+sglQuotedString = Combine(Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("string enclosed in single quotes")
+quotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"'|
+                       Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("quotedString using single or double quotes")
+unicodeString = Combine(_L('u') + quotedString.copy()).setName("unicode string literal")
+
+def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
+    """
+    Helper method for defining nested lists enclosed in opening and closing
+    delimiters ("(" and ")" are the default).
+
+    Parameters:
+     - opener - opening character for a nested list (default=C{"("}); can also be a pyparsing expression
+     - closer - closing character for a nested list (default=C{")"}); can also be a pyparsing expression
+     - content - expression for items within the nested lists (default=C{None})
+     - ignoreExpr - expression for ignoring opening and closing delimiters (default=C{quotedString})
+
+    If an expression is not provided for the content argument, the nested
+    expression will capture all whitespace-delimited content between delimiters
+    as a list of separate values.
+
+    Use the C{ignoreExpr} argument to define expressions that may contain
+    opening or closing characters that should not be treated as opening
+    or closing characters for nesting, such as quotedString or a comment
+    expression.  Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
+    The default is L{quotedString}, but if no expressions are to be ignored,
+    then pass C{None} for this argument.
+
+    Example::
+        data_type = oneOf("void int short long char float double")
+        decl_data_type = Combine(data_type + Optional(Word('*')))
+        ident = Word(alphas+'_', alphanums+'_')
+        number = pyparsing_common.number
+        arg = Group(decl_data_type + ident)
+        LPAR,RPAR = map(Suppress, "()")
+
+        code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment))
+
+        c_function = (decl_data_type("type") 
+                      + ident("name")
+                      + LPAR + Optional(delimitedList(arg), [])("args") + RPAR 
+                      + code_body("body"))
+        c_function.ignore(cStyleComment)
+        
+        source_code = '''
+            int is_odd(int x) { 
+                return (x%2); 
+            }
+                
+            int dec_to_hex(char hchar) { 
+                if (hchar >= '0' && hchar <= '9') { 
+                    return (ord(hchar)-ord('0')); 
+                } else { 
+                    return (10+ord(hchar)-ord('A'));
+                } 
+            }
+        '''
+        for func in c_function.searchString(source_code):
+            print("%(name)s (%(type)s) args: %(args)s" % func)
+
+    prints::
+        is_odd (int) args: [['int', 'x']]
+        dec_to_hex (int) args: [['char', 'hchar']]
+    """
+    if opener == closer:
+        raise ValueError("opening and closing strings cannot be the same")
+    if content is None:
+        if isinstance(opener,basestring) and isinstance(closer,basestring):
+            if len(opener) == 1 and len(closer)==1:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr +
+                                    CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
+                                ).setParseAction(lambda t:t[0].strip()))
+            else:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr + 
+                                    ~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+        else:
+            raise ValueError("opening and closing arguments must be strings if no content expression is given")
+    ret = Forward()
+    if ignoreExpr is not None:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ignoreExpr | ret | content ) + Suppress(closer) )
+    else:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ret | content )  + Suppress(closer) )
+    ret.setName('nested %s%s expression' % (opener,closer))
+    return ret
+
+def indentedBlock(blockStatementExpr, indentStack, indent=True):
+    """
+    Helper method for defining space-delimited indentation blocks, such as
+    those used to define block statements in Python source code.
+
+    Parameters:
+     - blockStatementExpr - expression defining syntax of statement that
+            is repeated within the indented block
+     - indentStack - list created by caller to manage indentation stack
+            (multiple statementWithIndentedBlock expressions within a single grammar
+            should share a common indentStack)
+     - indent - boolean indicating whether block must be indented beyond the
+            the current level; set to False for block of left-most statements
+            (default=C{True})
+
+    A valid block must contain at least one C{blockStatement}.
+
+    Example::
+        data = '''
+        def A(z):
+          A1
+          B = 100
+          G = A2
+          A2
+          A3
+        B
+        def BB(a,b,c):
+          BB1
+          def BBA():
+            bba1
+            bba2
+            bba3
+        C
+        D
+        def spam(x,y):
+             def eggs(z):
+                 pass
+        '''
+
+
+        indentStack = [1]
+        stmt = Forward()
+
+        identifier = Word(alphas, alphanums)
+        funcDecl = ("def" + identifier + Group( "(" + Optional( delimitedList(identifier) ) + ")" ) + ":")
+        func_body = indentedBlock(stmt, indentStack)
+        funcDef = Group( funcDecl + func_body )
+
+        rvalue = Forward()
+        funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
+        rvalue << (funcCall | identifier | Word(nums))
+        assignment = Group(identifier + "=" + rvalue)
+        stmt << ( funcDef | assignment | identifier )
+
+        module_body = OneOrMore(stmt)
+
+        parseTree = module_body.parseString(data)
+        parseTree.pprint()
+    prints::
+        [['def',
+          'A',
+          ['(', 'z', ')'],
+          ':',
+          [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]],
+         'B',
+         ['def',
+          'BB',
+          ['(', 'a', 'b', 'c', ')'],
+          ':',
+          [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]],
+         'C',
+         'D',
+         ['def',
+          'spam',
+          ['(', 'x', 'y', ')'],
+          ':',
+          [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]] 
+    """
+    def checkPeerIndent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if curCol != indentStack[-1]:
+            if curCol > indentStack[-1]:
+                raise ParseFatalException(s,l,"illegal nesting")
+            raise ParseException(s,l,"not a peer entry")
+
+    def checkSubIndent(s,l,t):
+        curCol = col(l,s)
+        if curCol > indentStack[-1]:
+            indentStack.append( curCol )
+        else:
+            raise ParseException(s,l,"not a subentry")
+
+    def checkUnindent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
+            raise ParseException(s,l,"not an unindent")
+        indentStack.pop()
+
+    NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
+    INDENT = (Empty() + Empty().setParseAction(checkSubIndent)).setName('INDENT')
+    PEER   = Empty().setParseAction(checkPeerIndent).setName('')
+    UNDENT = Empty().setParseAction(checkUnindent).setName('UNINDENT')
+    if indent:
+        smExpr = Group( Optional(NL) +
+            #~ FollowedBy(blockStatementExpr) +
+            INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
+    else:
+        smExpr = Group( Optional(NL) +
+            (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
+    blockStatementExpr.ignore(_bslash + LineEnd())
+    return smExpr.setName('indented block')
+
+alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
+punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
+
+anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:").setName('any tag'))
+_htmlEntityMap = dict(zip("gt lt amp nbsp quot apos".split(),'><& "\''))
+commonHTMLEntity = Regex('&(?P<entity>' + '|'.join(_htmlEntityMap.keys()) +");").setName("common HTML entity")
+def replaceHTMLEntity(t):
+    """Helper parser action to replace common HTML entities with their special characters"""
+    return _htmlEntityMap.get(t.entity)
+
+# it's easy to get these comment structures wrong - they're very common, so may as well make them available
+cStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/').setName("C style comment")
+"Comment of the form C{/* ... */}"
+
+htmlComment = Regex(r"").setName("HTML comment")
+"Comment of the form C{}"
+
+restOfLine = Regex(r".*").leaveWhitespace().setName("rest of line")
+dblSlashComment = Regex(r"//(?:\\\n|[^\n])*").setName("// comment")
+"Comment of the form C{// ... (to end of line)}"
+
+cppStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/'| dblSlashComment).setName("C++ style comment")
+"Comment of either form C{L{cStyleComment}} or C{L{dblSlashComment}}"
+
+javaStyleComment = cppStyleComment
+"Same as C{L{cppStyleComment}}"
+
+pythonStyleComment = Regex(r"#.*").setName("Python style comment")
+"Comment of the form C{# ... (to end of line)}"
+
+_commasepitem = Combine(OneOrMore(Word(printables, excludeChars=',') +
+                                  Optional( Word(" \t") +
+                                            ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
+commaSeparatedList = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("commaSeparatedList")
+"""(Deprecated) Predefined expression of 1 or more printable words or quoted strings, separated by commas.
+   This expression is deprecated in favor of L{pyparsing_common.comma_separated_list}."""
+
+# some other useful expressions - using lower-case class name since we are really using this as a namespace
+class pyparsing_common:
+    """
+    Here are some common low-level expressions that may be useful in jump-starting parser development:
+     - numeric forms (L{integers<integer>}, L{reals<real>}, L{scientific notation<sci_real>})
+     - common L{programming identifiers<identifier>}
+     - network addresses (L{MAC<mac_address>}, L{IPv4<ipv4_address>}, L{IPv6<ipv6_address>})
+     - ISO8601 L{dates<iso8601_date>} and L{datetime<iso8601_datetime>}
+     - L{UUID<uuid>}
+     - L{comma-separated list<comma_separated_list>}
+    Parse actions:
+     - C{L{convertToInteger}}
+     - C{L{convertToFloat}}
+     - C{L{convertToDate}}
+     - C{L{convertToDatetime}}
+     - C{L{stripHTMLTags}}
+     - C{L{upcaseTokens}}
+     - C{L{downcaseTokens}}
+
+    Example::
+        pyparsing_common.number.runTests('''
+            # any int or real number, returned as the appropriate type
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.fnumber.runTests('''
+            # any int or real number, returned as float
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.hex_integer.runTests('''
+            # hex numbers
+            100
+            FF
+            ''')
+
+        pyparsing_common.fraction.runTests('''
+            # fractions
+            1/2
+            -3/4
+            ''')
+
+        pyparsing_common.mixed_integer.runTests('''
+            # mixed fractions
+            1
+            1/2
+            -3/4
+            1-3/4
+            ''')
+
+        import uuid
+        pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+        pyparsing_common.uuid.runTests('''
+            # uuid
+            12345678-1234-5678-1234-567812345678
+            ''')
+    prints::
+        # any int or real number, returned as the appropriate type
+        100
+        [100]
+
+        -100
+        [-100]
+
+        +100
+        [100]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # any int or real number, returned as float
+        100
+        [100.0]
+
+        -100
+        [-100.0]
+
+        +100
+        [100.0]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # hex numbers
+        100
+        [256]
+
+        FF
+        [255]
+
+        # fractions
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        # mixed fractions
+        1
+        [1]
+
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        1-3/4
+        [1.75]
+
+        # uuid
+        12345678-1234-5678-1234-567812345678
+        [UUID('12345678-1234-5678-1234-567812345678')]
+    """
+
+    convertToInteger = tokenMap(int)
+    """
+    Parse action for converting parsed integers to Python int
+    """
+
+    convertToFloat = tokenMap(float)
+    """
+    Parse action for converting parsed numbers to Python float
+    """
+
+    integer = Word(nums).setName("integer").setParseAction(convertToInteger)
+    """expression that parses an unsigned integer, returns an int"""
+
+    hex_integer = Word(hexnums).setName("hex integer").setParseAction(tokenMap(int,16))
+    """expression that parses a hexadecimal integer, returns an int"""
+
+    signed_integer = Regex(r'[+-]?\d+').setName("signed integer").setParseAction(convertToInteger)
+    """expression that parses an integer with optional leading sign, returns an int"""
+
+    fraction = (signed_integer().setParseAction(convertToFloat) + '/' + signed_integer().setParseAction(convertToFloat)).setName("fraction")
+    """fractional expression of an integer divided by an integer, returns a float"""
+    fraction.addParseAction(lambda t: t[0]/t[-1])
+
+    mixed_integer = (fraction | signed_integer + Optional(Optional('-').suppress() + fraction)).setName("fraction or mixed integer-fraction")
+    """mixed integer of the form 'integer - fraction', with optional leading integer, returns float"""
+    mixed_integer.addParseAction(sum)
+
+    real = Regex(r'[+-]?\d+\.\d*').setName("real number").setParseAction(convertToFloat)
+    """expression that parses a floating point number and returns a float"""
+
+    sci_real = Regex(r'[+-]?\d+([eE][+-]?\d+|\.\d*([eE][+-]?\d+)?)').setName("real number with scientific notation").setParseAction(convertToFloat)
+    """expression that parses a floating point number with optional scientific notation and returns a float"""
+
+    # streamlining this expression makes the docs nicer-looking
+    number = (sci_real | real | signed_integer).streamline()
+    """any numeric expression, returns the corresponding Python type"""
+
+    fnumber = Regex(r'[+-]?\d+\.?\d*([eE][+-]?\d+)?').setName("fnumber").setParseAction(convertToFloat)
+    """any int or real number, returned as float"""
+    
+    identifier = Word(alphas+'_', alphanums+'_').setName("identifier")
+    """typical code identifier (leading alpha or '_', followed by 0 or more alphas, nums, or '_')"""
+    
+    ipv4_address = Regex(r'(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})){3}').setName("IPv4 address")
+    "IPv4 address (C{0.0.0.0 - 255.255.255.255})"
+
+    _ipv6_part = Regex(r'[0-9a-fA-F]{1,4}').setName("hex_integer")
+    _full_ipv6_address = (_ipv6_part + (':' + _ipv6_part)*7).setName("full IPv6 address")
+    _short_ipv6_address = (Optional(_ipv6_part + (':' + _ipv6_part)*(0,6)) + "::" + Optional(_ipv6_part + (':' + _ipv6_part)*(0,6))).setName("short IPv6 address")
+    _short_ipv6_address.addCondition(lambda t: sum(1 for tt in t if pyparsing_common._ipv6_part.matches(tt)) < 8)
+    _mixed_ipv6_address = ("::ffff:" + ipv4_address).setName("mixed IPv6 address")
+    ipv6_address = Combine((_full_ipv6_address | _mixed_ipv6_address | _short_ipv6_address).setName("IPv6 address")).setName("IPv6 address")
+    "IPv6 address (long, short, or mixed form)"
+    
+    mac_address = Regex(r'[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}').setName("MAC address")
+    "MAC address xx:xx:xx:xx:xx (may also have '-' or '.' delimiters)"
+
+    @staticmethod
+    def convertToDate(fmt="%Y-%m-%d"):
+        """
+        Helper to create a parse action for converting parsed date string to Python datetime.date
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%d"})
+
+        Example::
+            date_expr = pyparsing_common.iso8601_date.copy()
+            date_expr.setParseAction(pyparsing_common.convertToDate())
+            print(date_expr.parseString("1999-12-31"))
+        prints::
+            [datetime.date(1999, 12, 31)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt).date()
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    @staticmethod
+    def convertToDatetime(fmt="%Y-%m-%dT%H:%M:%S.%f"):
+        """
+        Helper to create a parse action for converting parsed datetime string to Python datetime.datetime
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%dT%H:%M:%S.%f"})
+
+        Example::
+            dt_expr = pyparsing_common.iso8601_datetime.copy()
+            dt_expr.setParseAction(pyparsing_common.convertToDatetime())
+            print(dt_expr.parseString("1999-12-31T23:59:59.999"))
+        prints::
+            [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt)
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    iso8601_date = Regex(r'(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?').setName("ISO8601 date")
+    "ISO8601 date (C{yyyy-mm-dd})"
+
+    iso8601_datetime = Regex(r'(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)[T ](?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d(\.\d*)?)?)?(?P<tz>Z|[+-]\d\d:?\d\d)?').setName("ISO8601 datetime")
+    "ISO8601 datetime (C{yyyy-mm-ddThh:mm:ss.s(Z|+-00:00)}) - trailing seconds, milliseconds, and timezone optional; accepts separating C{'T'} or C{' '}"
+
+    uuid = Regex(r'[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}').setName("UUID")
+    "UUID (C{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx})"
+
+    _html_stripper = anyOpenTag.suppress() | anyCloseTag.suppress()
+    @staticmethod
+    def stripHTMLTags(s, l, tokens):
+        """
+        Parse action to remove HTML tags from web page HTML source
+
+        Example::
+            # strip HTML links from normal text 
+            text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+            td,td_end = makeHTMLTags("TD")
+            table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end
+            
+            print(table_text.parseString(text).body) # -> 'More info at the pyparsing wiki page'
+        """
+        return pyparsing_common._html_stripper.transformString(tokens[0])
+
+    _commasepitem = Combine(OneOrMore(~Literal(",") + ~LineEnd() + Word(printables, excludeChars=',') 
+                                        + Optional( White(" \t") ) ) ).streamline().setName("commaItem")
+    comma_separated_list = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("comma separated list")
+    """Predefined expression of 1 or more printable words or quoted strings, separated by commas."""
+
+    upcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).upper()))
+    """Parse action to convert tokens to upper case."""
+
+    downcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).lower()))
+    """Parse action to convert tokens to lower case."""
+
+
+if __name__ == "__main__":
+
+    selectToken    = CaselessLiteral("select")
+    fromToken      = CaselessLiteral("from")
+
+    ident          = Word(alphas, alphanums + "_$")
+
+    columnName     = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    columnNameList = Group(delimitedList(columnName)).setName("columns")
+    columnSpec     = ('*' | columnNameList)
+
+    tableName      = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    tableNameList  = Group(delimitedList(tableName)).setName("tables")
+    
+    simpleSQL      = selectToken("command") + columnSpec("columns") + fromToken + tableNameList("tables")
+
+    # demo runTests method, including embedded comments in test string
+    simpleSQL.runTests("""
+        # '*' as column list and dotted table name
+        select * from SYS.XYZZY
+
+        # caseless match on "SELECT", and casts back to "select"
+        SELECT * from XYZZY, ABC
+
+        # list of column names, and mixed case SELECT keyword
+        Select AA,BB,CC from Sys.dual
+
+        # multiple tables
+        Select A, B, C from Sys.dual, Table2
+
+        # invalid SELECT keyword - should fail
+        Xelect A, B, C from Sys.dual
+
+        # incomplete command - should fail
+        Select
+
+        # invalid column name - should fail
+        Select ^^^ frox Sys.dual
+
+        """)
+
+    pyparsing_common.number.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    # any int or real number, returned as float
+    pyparsing_common.fnumber.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    pyparsing_common.hex_integer.runTests("""
+        100
+        FF
+        """)
+
+    import uuid
+    pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+    pyparsing_common.uuid.runTests("""
+        12345678-1234-5678-1234-567812345678
+        """)
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/_vendor/six.py b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/_vendor/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/extern/__init__.py b/venv/lib/python3.5/site-packages/pkg_resources/extern/__init__.py
new file mode 100644
index 0000000..b4156fe
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/extern/__init__.py
@@ -0,0 +1,73 @@
+import sys
+
+
+class VendorImporter:
+    """
+    A PEP 302 meta path importer for finding optionally-vendored
+    or otherwise naturally-installed packages from root_name.
+    """
+
+    def __init__(self, root_name, vendored_names=(), vendor_pkg=None):
+        self.root_name = root_name
+        self.vendored_names = set(vendored_names)
+        self.vendor_pkg = vendor_pkg or root_name.replace('extern', '_vendor')
+
+    @property
+    def search_path(self):
+        """
+        Search first the vendor package then as a natural package.
+        """
+        yield self.vendor_pkg + '.'
+        yield ''
+
+    def find_module(self, fullname, path=None):
+        """
+        Return self when fullname starts with root_name and the
+        target module is one vendored through this importer.
+        """
+        root, base, target = fullname.partition(self.root_name + '.')
+        if root:
+            return
+        if not any(map(target.startswith, self.vendored_names)):
+            return
+        return self
+
+    def load_module(self, fullname):
+        """
+        Iterate over the search path to locate and load fullname.
+        """
+        root, base, target = fullname.partition(self.root_name + '.')
+        for prefix in self.search_path:
+            try:
+                extant = prefix + target
+                __import__(extant)
+                mod = sys.modules[extant]
+                sys.modules[fullname] = mod
+                # mysterious hack:
+                # Remove the reference to the extant package/module
+                # on later Python versions to cause relative imports
+                # in the vendor package to resolve the same modules
+                # as those going through this importer.
+                if sys.version_info > (3, 3):
+                    del sys.modules[extant]
+                return mod
+            except ImportError:
+                pass
+        else:
+            raise ImportError(
+                "The '{target}' package is required; "
+                "normally this is bundled with this package so if you get "
+                "this warning, consult the packager of your "
+                "distribution.".format(**locals())
+            )
+
+    def install(self):
+        """
+        Install this importer into sys.meta_path if not already present.
+        """
+        if self not in sys.meta_path:
+            sys.meta_path.append(self)
+
+
+names = 'packaging', 'pyparsing', 'six', 'appdirs'
+VendorImporter(__name__, names).install()
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..1e01dda
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pkg_resources/py31compat.py b/venv/lib/python3.5/site-packages/pkg_resources/py31compat.py
new file mode 100644
index 0000000..331a51b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pkg_resources/py31compat.py
@@ -0,0 +1,22 @@
+import os
+import errno
+import sys
+
+
+def _makedirs_31(path, exist_ok=False):
+    try:
+        os.makedirs(path)
+    except OSError as exc:
+        if not exist_ok or exc.errno != errno.EEXIST:
+            raise
+
+
+# rely on compatibility behavior until mode considerations
+#  and exists_ok considerations are disentangled.
+# See https://github.com/pypa/setuptools/pull/1083#issuecomment-315168663
+needs_makedirs = (
+    sys.version_info < (3, 2, 5) or
+    (3, 3) <= sys.version_info < (3, 3, 6) or
+    (3, 4) <= sys.version_info < (3, 4, 1)
+)
+makedirs = _makedirs_31 if needs_makedirs else os.makedirs
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/DESCRIPTION.rst b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..7fb53b8
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/DESCRIPTION.rst
@@ -0,0 +1,3 @@
+Pure-Python implementation of ASN.1 types and DER/BER/CER codecs (X.208)
+
+
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/INSTALLER b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/METADATA b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/METADATA
new file mode 100644
index 0000000..154e9c6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/METADATA
@@ -0,0 +1,36 @@
+Metadata-Version: 2.0
+Name: pyasn1
+Version: 0.4.2
+Summary: ASN.1 types and codecs
+Home-page: https://github.com/etingof/pyasn1
+Author: Ilya Etingof <etingof@gmail.com>
+Author-email: etingof@gmail.com
+License: BSD
+Platform: any
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Environment :: Console
+Classifier: Intended Audience :: Developers
+Classifier: Intended Audience :: Education
+Classifier: Intended Audience :: Information Technology
+Classifier: Intended Audience :: System Administrators
+Classifier: Intended Audience :: Telecommunications Industry
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Natural Language :: English
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.4
+Classifier: Programming Language :: Python :: 2.5
+Classifier: Programming Language :: Python :: 2.6
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.2
+Classifier: Programming Language :: Python :: 3.3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Topic :: Communications
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+
+Pure-Python implementation of ASN.1 types and DER/BER/CER codecs (X.208)
+
+
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/RECORD b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/RECORD
new file mode 100644
index 0000000..4fec953
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/RECORD
@@ -0,0 +1,80 @@
+pyasn1/__init__.py,sha256=k5HqTHRFQMHcERS-LvJa0oKIWCAWSlp4c0qpqQEpqYQ,174
+pyasn1/debug.py,sha256=nz0Rl7XE0S3GI0OM7PYAsYB6JdqCTHBoL9TDfue1m5o,3361
+pyasn1/error.py,sha256=Xux8rKvp1lwieKulHtwnAcKsBqPslROiJ5TCmMJx3mY,709
+pyasn1/codec/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/codec/ber/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/codec/ber/decoder.py,sha256=-BKbWQuAijKsj5LoQ1MIkVH8mdnS-pgNxJSxjsZmh-8,52508
+pyasn1/codec/ber/encoder.py,sha256=swI3CSG3cpfjL2ca35UwFnmo0jW6sUmPrkYHvNAqs-g,23801
+pyasn1/codec/ber/eoo.py,sha256=8lYTDiKMU9BpSTcAY3tsQ9v5rtxgJnKjqv6dop7QBm0,634
+pyasn1/codec/cer/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/codec/cer/decoder.py,sha256=iK2Dv1aBXI8-pxUFQ4y7DyjTYZAkUc2fDStV0l_1teA,3718
+pyasn1/codec/cer/encoder.py,sha256=VS8TvNK7vMFJtc3vykuBl2tmgNigR5jh7uN6OJ8QdS8,8872
+pyasn1/codec/der/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/codec/der/decoder.py,sha256=y2hpUKTsFQFVDguYyG_dXoS4geFzXEoH1mUTaFvTLkg,2696
+pyasn1/codec/der/encoder.py,sha256=eCM4bTjHgmkFtkoUxwrOXnYJ5cOI_OeGa8Re0rtZe9I,3085
+pyasn1/codec/native/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/codec/native/decoder.py,sha256=K05mdhww6dxiRoYqQ9nBqKUzbV7ZYaQ-3a0fK37h3LY,7754
+pyasn1/codec/native/encoder.py,sha256=apgph0Q_SVJnc7JK5ARNBTDs6OBcYm4D2_BSuzBZqCU,6711
+pyasn1/compat/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/compat/binary.py,sha256=2gqdD44W6X78glk5jTllJ8_pILDuaCOfwGtmoSpGdtc,698
+pyasn1/compat/calling.py,sha256=v6LyuqfY5l6q3do5Gk-P8SBNagTuOawRjda_7V1UYUY,379
+pyasn1/compat/dateandtime.py,sha256=HouWrkJkdziG80xucOmYFdySRoSoBE6g4Q4qbGnG98M,482
+pyasn1/compat/integer.py,sha256=kPcSHZ1HgttA-cQKhuXumjT-tjR59Hiv-r5Q3K1Fe0E,2988
+pyasn1/compat/octets.py,sha256=nAhOGipiOazrU7QUq1MFfca51BeNkzUYvJHq029HFA8,1359
+pyasn1/compat/string.py,sha256=VlEqQuUMmyYzbmqnWWzcdsX901zP2bPoNe8Kg1D60jY,505
+pyasn1/type/__init__.py,sha256=EEDlJYS172EH39GUidN_8FbkNcWY9OVV8e30AV58pn0,59
+pyasn1/type/base.py,sha256=fniBVi-HmXsmeSBPdN3e8T6xBoiPTE1jpcKRVoutikA,20559
+pyasn1/type/char.py,sha256=kSZg253nMW5xlL-jnVOrDz9EgInRKWPT84_cdqK1mVw,10771
+pyasn1/type/constraint.py,sha256=4Xh-bbp0K7I92_T-hUNHeroVQC_mV_b5KujlsGYmihY,16050
+pyasn1/type/error.py,sha256=4jBnPPpB5vhrJKaAXpxkEysTSS9KBjECMPZ8mqTrQsk,246
+pyasn1/type/namedtype.py,sha256=GVz23fXpylTvT3nzkAlaVK1J5-At5Ypc_oczqB59Kd4,16441
+pyasn1/type/namedval.py,sha256=ZAZNMJLScNI2uo0S3Id_1Pk2KTO1c6MIiHmxMfPOwZk,4888
+pyasn1/type/opentype.py,sha256=UkZvYNFF_Cjhg2MZH8cXaoni6yFYLoZhJLnnTkbO9rI,1781
+pyasn1/type/tag.py,sha256=YDSaNqjDjC9bd1z_LboQjshSBTp9E6e6vh1YugFiIR4,9489
+pyasn1/type/tagmap.py,sha256=PoBT7GLx2eyEX-O_BmKrGJI3ifSEd5hCOFb42qVA_JM,3015
+pyasn1/type/univ.py,sha256=VTDggAqeOcuSDdSsjjT-KmFsQCdiNN_qVHFLRb3MKFw,100131
+pyasn1/type/useful.py,sha256=sW-1drKzGzUgZo3KEqPeXq1G--iIF_zHZhb_Qei9MJ0,5370
+pyasn1-0.4.2.dist-info/DESCRIPTION.rst,sha256=2jbkK6fmEr45mOdVBxruBS_lcY2u6QKYcB8Cz6vgPHU,75
+pyasn1-0.4.2.dist-info/METADATA,sha256=XAhXmGaEOUyh53YJ_RbvQV5DsmgWS0AB8SVefvCGW7k,1446
+pyasn1-0.4.2.dist-info/RECORD,,
+pyasn1-0.4.2.dist-info/WHEEL,sha256=o2k-Qa-RMNIJmUdIc7KU6VWR_ErNRbWNlxDIpl7lm34,110
+pyasn1-0.4.2.dist-info/metadata.json,sha256=-hsBkXFIcQ95Y_XheEK_mpq3ja0JZVFZ1rPEIm9hGMc,1390
+pyasn1-0.4.2.dist-info/top_level.txt,sha256=dnNEQt3nIDIO5mSCCOB5obQHrjDOUsRycdBujc2vrWE,7
+pyasn1-0.4.2.dist-info/zip-safe,sha256=AbpHGcgLb-kRsJGnwFEktk7uzpZOCcBY74-YBdrKVGs,1
+pyasn1-0.4.2.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+pyasn1/compat/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/compat/__pycache__/dateandtime.cpython-35.pyc,,
+pyasn1/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/type/__pycache__/useful.cpython-35.pyc,,
+pyasn1/codec/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/codec/ber/__pycache__/decoder.cpython-35.pyc,,
+pyasn1/compat/__pycache__/binary.cpython-35.pyc,,
+pyasn1/compat/__pycache__/string.cpython-35.pyc,,
+pyasn1/codec/der/__pycache__/encoder.cpython-35.pyc,,
+pyasn1/type/__pycache__/tagmap.cpython-35.pyc,,
+pyasn1/codec/cer/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/type/__pycache__/base.cpython-35.pyc,,
+pyasn1/codec/ber/__pycache__/encoder.cpython-35.pyc,,
+pyasn1/codec/native/__pycache__/decoder.cpython-35.pyc,,
+pyasn1/type/__pycache__/constraint.cpython-35.pyc,,
+pyasn1/__pycache__/debug.cpython-35.pyc,,
+pyasn1/codec/native/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/codec/cer/__pycache__/encoder.cpython-35.pyc,,
+pyasn1/type/__pycache__/namedtype.cpython-35.pyc,,
+pyasn1/type/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/compat/__pycache__/integer.cpython-35.pyc,,
+pyasn1/codec/cer/__pycache__/decoder.cpython-35.pyc,,
+pyasn1/__pycache__/error.cpython-35.pyc,,
+pyasn1/codec/der/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/codec/ber/__pycache__/__init__.cpython-35.pyc,,
+pyasn1/codec/native/__pycache__/encoder.cpython-35.pyc,,
+pyasn1/compat/__pycache__/calling.cpython-35.pyc,,
+pyasn1/codec/ber/__pycache__/eoo.cpython-35.pyc,,
+pyasn1/type/__pycache__/error.cpython-35.pyc,,
+pyasn1/type/__pycache__/univ.cpython-35.pyc,,
+pyasn1/compat/__pycache__/octets.cpython-35.pyc,,
+pyasn1/codec/der/__pycache__/decoder.cpython-35.pyc,,
+pyasn1/type/__pycache__/char.cpython-35.pyc,,
+pyasn1/type/__pycache__/opentype.cpython-35.pyc,,
+pyasn1/type/__pycache__/tag.cpython-35.pyc,,
+pyasn1/type/__pycache__/namedval.cpython-35.pyc,,
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/WHEEL b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/WHEEL
new file mode 100644
index 0000000..8b6dd1b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.29.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/metadata.json b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/metadata.json
new file mode 100644
index 0000000..87a0790
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Environment :: Console", "Intended Audience :: Developers", "Intended Audience :: Education", "Intended Audience :: Information Technology", "Intended Audience :: System Administrators", "Intended Audience :: Telecommunications Industry", "License :: OSI Approved :: BSD License", "Natural Language :: English", "Operating System :: OS Independent", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.4", "Programming Language :: Python :: 2.5", "Programming Language :: Python :: 2.6", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.2", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6", "Topic :: Communications", "Topic :: Software Development :: Libraries :: Python Modules"], "extensions": {"python.details": {"contacts": [{"email": "etingof@gmail.com", "name": "Ilya Etingof <etingof@gmail.com>", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst"}, "project_urls": {"Home": "https://github.com/etingof/pyasn1"}}}, "generator": "bdist_wheel (0.29.0)", "license": "BSD", "metadata_version": "2.0", "name": "pyasn1", "platform": "any", "summary": "ASN.1 types and codecs", "version": "0.4.2"}
\ No newline at end of file
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/top_level.txt b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/top_level.txt
new file mode 100644
index 0000000..38fe414
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/top_level.txt
@@ -0,0 +1 @@
+pyasn1
diff --git a/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/zip-safe b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/zip-safe
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1-0.4.2.dist-info/zip-safe
@@ -0,0 +1 @@
+
diff --git a/venv/lib/python3.5/site-packages/pyasn1/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/__init__.py
new file mode 100644
index 0000000..1e99d6b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/__init__.py
@@ -0,0 +1,7 @@
+import sys
+
+# http://www.python.org/dev/peps/pep-0396/
+__version__ = '0.4.2'
+
+if sys.version_info[:2] < (2, 4):
+    raise RuntimeError('PyASN1 requires Python 2.4 or later')
diff --git a/venv/lib/python3.5/site-packages/pyasn1/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..939434b
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/__pycache__/debug.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/debug.cpython-35.pyc
new file mode 100644
index 0000000..24129eb
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/debug.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/__pycache__/error.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/error.cpython-35.pyc
new file mode 100644
index 0000000..18c4fb6
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/__pycache__/error.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/codec/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..7a34185
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/codec/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..82006ba
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/decoder.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/decoder.cpython-35.pyc
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index 0000000..18342c0
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/decoder.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/encoder.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/encoder.cpython-35.pyc
new file mode 100644
index 0000000..51c81d6
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/encoder.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/eoo.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/eoo.cpython-35.pyc
new file mode 100644
index 0000000..9bf92a5
Binary files /dev/null and b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/__pycache__/eoo.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/decoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/decoder.py
new file mode 100644
index 0000000..6e29db0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/decoder.py
@@ -0,0 +1,1379 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import debug
+from pyasn1 import error
+from pyasn1.codec.ber import eoo
+from pyasn1.compat.integer import from_bytes
+from pyasn1.compat.octets import oct2int, octs2ints, ints2octs, null
+from pyasn1.type import base
+from pyasn1.type import char
+from pyasn1.type import tag
+from pyasn1.type import tagmap
+from pyasn1.type import univ
+from pyasn1.type import useful
+
+__all__ = ['decode']
+
+noValue = base.noValue
+
+
+class AbstractDecoder(object):
+    protoComponent = None
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        raise error.PyAsn1Error('Decoder not implemented for %s' % (tagSet,))
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        raise error.PyAsn1Error('Indefinite length mode decoder not implemented for %s' % (tagSet,))
+
+
+class AbstractSimpleDecoder(AbstractDecoder):
+    @staticmethod
+    def substrateCollector(asn1Object, substrate, length):
+        return substrate[:length], substrate[length:]
+
+    def _createComponent(self, asn1Spec, tagSet, value, **options):
+        if options.get('native'):
+            return value
+        elif asn1Spec is None:
+            return self.protoComponent.clone(value, tagSet=tagSet)
+        elif value is noValue:
+            return asn1Spec
+        else:
+            return asn1Spec.clone(value)
+
+
+class ExplicitTagDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.Any('')
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        if substrateFun:
+            return substrateFun(
+                self._createComponent(asn1Spec, tagSet, '', **options),
+                substrate, length
+            )
+
+        head, tail = substrate[:length], substrate[length:]
+
+        value, _ = decodeFun(head, asn1Spec, tagSet, length, **options)
+
+        return value, tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        if substrateFun:
+            return substrateFun(
+                self._createComponent(asn1Spec, tagSet, '', **options),
+                substrate, length
+            )
+
+        value, substrate = decodeFun(substrate, asn1Spec, tagSet, length, **options)
+
+        eooMarker, substrate = decodeFun(substrate, allowEoo=True, **options)
+
+        if eooMarker is eoo.endOfOctets:
+            return value, substrate
+        else:
+            raise error.PyAsn1Error('Missing end-of-octets terminator')
+
+
+explicitTagDecoder = ExplicitTagDecoder()
+
+
+class IntegerDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.Integer(0)
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+
+        if tagSet[0].tagFormat != tag.tagFormatSimple:
+            raise error.PyAsn1Error('Simple tag format expected')
+
+        head, tail = substrate[:length], substrate[length:]
+
+        if not head:
+            return self._createComponent(asn1Spec, tagSet, 0, **options), tail
+
+        value = from_bytes(head, signed=True)
+
+        return self._createComponent(asn1Spec, tagSet, value, **options), tail
+
+
+class BooleanDecoder(IntegerDecoder):
+    protoComponent = univ.Boolean(0)
+
+    def _createComponent(self, asn1Spec, tagSet, value, **options):
+        return IntegerDecoder._createComponent(self, asn1Spec, tagSet, value and 1 or 0, **options)
+
+
+class BitStringDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.BitString(())
+    supportConstructedForm = True
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        head, tail = substrate[:length], substrate[length:]
+
+        if substrateFun:
+            return substrateFun(self._createComponent(asn1Spec, tagSet, noValue, **options),
+                                substrate, length)
+
+        if not head:
+            raise error.PyAsn1Error('Empty BIT STRING substrate')
+
+        if tagSet[0].tagFormat == tag.tagFormatSimple:  # XXX what tag to check?
+
+            trailingBits = oct2int(head[0])
+            if trailingBits > 7:
+                raise error.PyAsn1Error(
+                    'Trailing bits overflow %s' % trailingBits
+                )
+
+            value = self.protoComponent.fromOctetString(head[1:], internalFormat=True, padding=trailingBits)
+
+            return self._createComponent(asn1Spec, tagSet, value, **options), tail
+
+        if not self.supportConstructedForm:
+            raise error.PyAsn1Error('Constructed encoding form prohibited at %s' % self.__class__.__name__)
+
+        # All inner fragments are of the same type, treat them as octet string
+        substrateFun = self.substrateCollector
+
+        bitString = self.protoComponent.fromOctetString(null, internalFormat=True)
+
+        while head:
+            component, head = decodeFun(head, self.protoComponent,
+                                        substrateFun=substrateFun, **options)
+
+            trailingBits = oct2int(component[0])
+            if trailingBits > 7:
+                raise error.PyAsn1Error(
+                    'Trailing bits overflow %s' % trailingBits
+                )
+
+            bitString = self.protoComponent.fromOctetString(
+                component[1:], internalFormat=True,
+                prepend=bitString, padding=trailingBits
+            )
+
+        return self._createComponent(asn1Spec, tagSet, bitString, **options), tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+
+        if substrateFun:
+            return substrateFun(self._createComponent(asn1Spec, tagSet, noValue, **options), substrate, length)
+
+        # All inner fragments are of the same type, treat them as octet string
+        substrateFun = self.substrateCollector
+
+        bitString = self.protoComponent.fromOctetString(null, internalFormat=True)
+
+        while substrate:
+            component, substrate = decodeFun(substrate, self.protoComponent,
+                                             substrateFun=substrateFun,
+                                             allowEoo=True, **options)
+            if component is eoo.endOfOctets:
+                break
+
+            trailingBits = oct2int(component[0])
+            if trailingBits > 7:
+                raise error.PyAsn1Error(
+                    'Trailing bits overflow %s' % trailingBits
+                )
+
+            bitString = self.protoComponent.fromOctetString(
+                component[1:], internalFormat=True,
+                prepend=bitString, padding=trailingBits
+            )
+
+        else:
+            raise error.SubstrateUnderrunError('No EOO seen before substrate ends')
+
+        return self._createComponent(asn1Spec, tagSet, bitString, **options), substrate
+
+
+class OctetStringDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.OctetString('')
+    supportConstructedForm = True
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        head, tail = substrate[:length], substrate[length:]
+
+        if substrateFun:
+            return substrateFun(self._createComponent(asn1Spec, tagSet, noValue, **options),
+                                substrate, length)
+
+        if tagSet[0].tagFormat == tag.tagFormatSimple:  # XXX what tag to check?
+            return self._createComponent(asn1Spec, tagSet, head, **options), tail
+
+        if not self.supportConstructedForm:
+            raise error.PyAsn1Error('Constructed encoding form prohibited at %s' % self.__class__.__name__)
+
+        # All inner fragments are of the same type, treat them as octet string
+        substrateFun = self.substrateCollector
+
+        header = null
+
+        while head:
+            component, head = decodeFun(head, self.protoComponent,
+                                        substrateFun=substrateFun,
+                                        **options)
+            header += component
+
+        return self._createComponent(asn1Spec, tagSet, header, **options), tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        if substrateFun and substrateFun is not self.substrateCollector:
+            asn1Object = self._createComponent(asn1Spec, tagSet, noValue, **options)
+            return substrateFun(asn1Object, substrate, length)
+
+        # All inner fragments are of the same type, treat them as octet string
+        substrateFun = self.substrateCollector
+
+        header = null
+
+        while substrate:
+            component, substrate = decodeFun(substrate,
+                                             self.protoComponent,
+                                             substrateFun=substrateFun,
+                                             allowEoo=True, **options)
+            if component is eoo.endOfOctets:
+                break
+            header += component
+        else:
+            raise error.SubstrateUnderrunError(
+                'No EOO seen before substrate ends'
+            )
+
+        return self._createComponent(asn1Spec, tagSet, header, **options), substrate
+
+
+class NullDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.Null('')
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+
+        if tagSet[0].tagFormat != tag.tagFormatSimple:
+            raise error.PyAsn1Error('Simple tag format expected')
+
+        head, tail = substrate[:length], substrate[length:]
+
+        component = self._createComponent(asn1Spec, tagSet, '', **options)
+
+        if head:
+            raise error.PyAsn1Error('Unexpected %d-octet substrate for Null' % length)
+
+        return component, tail
+
+
+class ObjectIdentifierDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.ObjectIdentifier(())
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        if tagSet[0].tagFormat != tag.tagFormatSimple:
+            raise error.PyAsn1Error('Simple tag format expected')
+
+        head, tail = substrate[:length], substrate[length:]
+        if not head:
+            raise error.PyAsn1Error('Empty substrate')
+
+        head = octs2ints(head)
+
+        oid = ()
+        index = 0
+        substrateLen = len(head)
+        while index < substrateLen:
+            subId = head[index]
+            index += 1
+            if subId < 128:
+                oid += (subId,)
+            elif subId > 128:
+                # Construct subid from a number of octets
+                nextSubId = subId
+                subId = 0
+                while nextSubId >= 128:
+                    subId = (subId << 7) + (nextSubId & 0x7F)
+                    if index >= substrateLen:
+                        raise error.SubstrateUnderrunError(
+                            'Short substrate for sub-OID past %s' % (oid,)
+                        )
+                    nextSubId = head[index]
+                    index += 1
+                oid += ((subId << 7) + nextSubId,)
+            elif subId == 128:
+                # ASN.1 spec forbids leading zeros (0x80) in OID
+                # encoding, tolerating it opens a vulnerability. See
+                # http://www.cosic.esat.kuleuven.be/publications/article-1432.pdf
+                # page 7
+                raise error.PyAsn1Error('Invalid octet 0x80 in OID encoding')
+
+        # Decode two leading arcs
+        if 0 <= oid[0] <= 39:
+            oid = (0,) + oid
+        elif 40 <= oid[0] <= 79:
+            oid = (1, oid[0] - 40) + oid[1:]
+        elif oid[0] >= 80:
+            oid = (2, oid[0] - 80) + oid[1:]
+        else:
+            raise error.PyAsn1Error('Malformed first OID octet: %s' % head[0])
+
+        return self._createComponent(asn1Spec, tagSet, oid, **options), tail
+
+
+class RealDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.Real()
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        if tagSet[0].tagFormat != tag.tagFormatSimple:
+            raise error.PyAsn1Error('Simple tag format expected')
+
+        head, tail = substrate[:length], substrate[length:]
+
+        if not head:
+            return self._createComponent(asn1Spec, tagSet, 0.0, **options), tail
+
+        fo = oct2int(head[0])
+        head = head[1:]
+        if fo & 0x80:  # binary encoding
+            if not head:
+                raise error.PyAsn1Error("Incomplete floating-point value")
+            n = (fo & 0x03) + 1
+            if n == 4:
+                n = oct2int(head[0])
+                head = head[1:]
+            eo, head = head[:n], head[n:]
+            if not eo or not head:
+                raise error.PyAsn1Error('Real exponent screwed')
+            e = oct2int(eo[0]) & 0x80 and -1 or 0
+            while eo:  # exponent
+                e <<= 8
+                e |= oct2int(eo[0])
+                eo = eo[1:]
+            b = fo >> 4 & 0x03  # base bits
+            if b > 2:
+                raise error.PyAsn1Error('Illegal Real base')
+            if b == 1:  # encbase = 8
+                e *= 3
+            elif b == 2:  # encbase = 16
+                e *= 4
+            p = 0
+            while head:  # value
+                p <<= 8
+                p |= oct2int(head[0])
+                head = head[1:]
+            if fo & 0x40:  # sign bit
+                p = -p
+            sf = fo >> 2 & 0x03  # scale bits
+            p *= 2 ** sf
+            value = (p, 2, e)
+        elif fo & 0x40:  # infinite value
+            value = fo & 0x01 and '-inf' or 'inf'
+        elif fo & 0xc0 == 0:  # character encoding
+            if not head:
+                raise error.PyAsn1Error("Incomplete floating-point value")
+            try:
+                if fo & 0x3 == 0x1:  # NR1
+                    value = (int(head), 10, 0)
+                elif fo & 0x3 == 0x2:  # NR2
+                    value = float(head)
+                elif fo & 0x3 == 0x3:  # NR3
+                    value = float(head)
+                else:
+                    raise error.SubstrateUnderrunError(
+                        'Unknown NR (tag %s)' % fo
+                    )
+            except ValueError:
+                raise error.SubstrateUnderrunError(
+                    'Bad character Real syntax'
+                )
+        else:
+            raise error.SubstrateUnderrunError(
+                'Unknown encoding (tag %s)' % fo
+            )
+        return self._createComponent(asn1Spec, tagSet, value, **options), tail
+
+
+class AbstractConstructedDecoder(AbstractDecoder):
+    protoComponent = None
+
+
+class UniversalConstructedTypeDecoder(AbstractConstructedDecoder):
+    protoRecordComponent = None
+    protoSequenceComponent = None
+
+    def _getComponentTagMap(self, asn1Object, idx):
+        raise NotImplementedError()
+
+    def _getComponentPositionByType(self, asn1Object, tagSet, idx):
+        raise NotImplementedError()
+
+    def _decodeComponents(self, substrate, tagSet=None, decodeFun=None, **options):
+        components = []
+        componentTypes = set()
+        while substrate:
+            component, substrate = decodeFun(substrate, **options)
+            if component is eoo.endOfOctets:
+                break
+            components.append(component)
+            componentTypes.add(component.tagSet)
+
+        # Now we have to guess is it SEQUENCE/SET or SEQUENCE OF/SET OF
+        # The heuristics is:
+        # * 1+ components of different types -> likely SEQUENCE/SET
+        # * otherwise -> likely SEQUENCE OF/SET OF
+        if len(componentTypes) > 1:
+            protoComponent = self.protoRecordComponent
+        else:
+            protoComponent = self.protoSequenceComponent
+
+        asn1Object = protoComponent.clone(
+            # construct tagSet from base tag from prototype ASN.1 object
+            # and additional tags recovered from the substrate
+            tagSet=tag.TagSet(protoComponent.tagSet.baseTag, *tagSet.superTags)
+        )
+
+        for idx, component in enumerate(components):
+            asn1Object.setComponentByPosition(
+                idx, component,
+                verifyConstraints=False,
+                matchTags=False, matchConstraints=False
+            )
+
+        return asn1Object, substrate
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        if tagSet[0].tagFormat != tag.tagFormatConstructed:
+            raise error.PyAsn1Error('Constructed tag format expected')
+
+        head, tail = substrate[:length], substrate[length:]
+
+        if substrateFun is not None:
+            if asn1Spec is not None:
+                asn1Object = asn1Spec.clone()
+            elif self.protoComponent is not None:
+                asn1Object = self.protoComponent.clone(tagSet=tagSet)
+            else:
+                asn1Object = self.protoRecordComponent, self.protoSequenceComponent
+
+            return substrateFun(asn1Object, substrate, length)
+
+        if asn1Spec is None:
+            asn1Object, trailing = self._decodeComponents(
+                head, tagSet=tagSet, decodeFun=decodeFun, **options
+            )
+            if trailing:
+                raise error.PyAsn1Error('Unused trailing %d octets encountered' % len(trailing))
+            return asn1Object, tail
+
+        asn1Object = asn1Spec.clone()
+
+        if asn1Spec.typeId in (univ.Sequence.typeId, univ.Set.typeId):
+
+            namedTypes = asn1Spec.componentType
+
+            isSetType = asn1Spec.typeId == univ.Set.typeId
+            isDeterministic = not isSetType and not namedTypes.hasOptionalOrDefault
+
+            seenIndices = set()
+            idx = 0
+            while head:
+                if not namedTypes:
+                    componentType = None
+                elif isSetType:
+                    componentType = namedTypes.tagMapUnique
+                else:
+                    try:
+                        if isDeterministic:
+                            componentType = namedTypes[idx].asn1Object
+                        elif namedTypes[idx].isOptional or namedTypes[idx].isDefaulted:
+                            componentType = namedTypes.getTagMapNearPosition(idx)
+                        else:
+                            componentType = namedTypes[idx].asn1Object
+                    except IndexError:
+                        raise error.PyAsn1Error(
+                            'Excessive components decoded at %r' % (asn1Spec,)
+                        )
+
+                component, head = decodeFun(head, componentType, **options)
+
+                if not isDeterministic and namedTypes:
+                    if isSetType:
+                        idx = namedTypes.getPositionByType(component.effectiveTagSet)
+                    elif namedTypes[idx].isOptional or namedTypes[idx].isDefaulted:
+                        idx = namedTypes.getPositionNearType(component.effectiveTagSet, idx)
+
+                asn1Object.setComponentByPosition(
+                    idx, component,
+                    verifyConstraints=False,
+                    matchTags=False, matchConstraints=False
+                )
+
+                seenIndices.add(idx)
+                idx += 1
+
+            if namedTypes:
+                if not namedTypes.requiredComponents.issubset(seenIndices):
+                    raise error.PyAsn1Error('ASN.1 object %s has uninitialized components' % asn1Object.__class__.__name__)
+
+                if  namedTypes.hasOpenTypes:
+
+                    openTypes = options.get('openTypes', {})
+
+                    if openTypes or options.get('decodeOpenTypes', False):
+
+                        for idx, namedType in enumerate(namedTypes.namedTypes):
+                            if not namedType.openType:
+                                continue
+
+                            if namedType.isOptional and not asn1Object.getComponentByPosition(idx).isValue:
+                                continue
+
+                            governingValue = asn1Object.getComponentByName(
+                                namedType.openType.name
+                            )
+
+                            try:
+                                openType = openTypes[governingValue]
+
+                            except KeyError:
+
+                                try:
+                                    openType = namedType.openType[governingValue]
+
+                                except KeyError:
+                                    continue
+
+                            component, rest = decodeFun(
+                                asn1Object.getComponentByPosition(idx).asOctets(),
+                                asn1Spec=openType
+                            )
+
+                            asn1Object.setComponentByPosition(idx, component)
+
+            else:
+                asn1Object.verifySizeSpec()
+
+        else:
+            asn1Object = asn1Spec.clone()
+
+            componentType = asn1Spec.componentType
+
+            idx = 0
+
+            while head:
+                component, head = decodeFun(head, componentType, **options)
+                asn1Object.setComponentByPosition(
+                    idx, component,
+                    verifyConstraints=False,
+                    matchTags=False, matchConstraints=False
+                )
+                idx += 1
+
+        return asn1Object, tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        if tagSet[0].tagFormat != tag.tagFormatConstructed:
+            raise error.PyAsn1Error('Constructed tag format expected')
+
+        if substrateFun is not None:
+            if asn1Spec is not None:
+                asn1Object = asn1Spec.clone()
+            elif self.protoComponent is not None:
+                asn1Object = self.protoComponent.clone(tagSet=tagSet)
+            else:
+                asn1Object = self.protoRecordComponent, self.protoSequenceComponent
+
+            return substrateFun(asn1Object, substrate, length)
+
+        if asn1Spec is None:
+            return self._decodeComponents(
+                substrate, tagSet=tagSet, decodeFun=decodeFun, allowEoo=True, **options
+            )
+
+        asn1Object = asn1Spec.clone()
+
+        if asn1Spec.typeId in (univ.Sequence.typeId, univ.Set.typeId):
+
+            namedTypes = asn1Object.componentType
+
+            isSetType = asn1Object.typeId == univ.Set.typeId
+            isDeterministic = not isSetType and not namedTypes.hasOptionalOrDefault
+
+            seenIndices = set()
+            idx = 0
+            while substrate:
+                if len(namedTypes) <= idx:
+                    asn1Spec = None
+                elif isSetType:
+                    asn1Spec = namedTypes.tagMapUnique
+                else:
+                    try:
+                        if isDeterministic:
+                            asn1Spec = namedTypes[idx].asn1Object
+                        elif namedTypes[idx].isOptional or namedTypes[idx].isDefaulted:
+                            asn1Spec = namedTypes.getTagMapNearPosition(idx)
+                        else:
+                            asn1Spec = namedTypes[idx].asn1Object
+                    except IndexError:
+                        raise error.PyAsn1Error(
+                            'Excessive components decoded at %r' % (asn1Object,)
+                        )
+
+                component, substrate = decodeFun(substrate, asn1Spec, allowEoo=True, **options)
+                if component is eoo.endOfOctets:
+                    break
+
+                if not isDeterministic and namedTypes:
+                    if isSetType:
+                        idx = namedTypes.getPositionByType(component.effectiveTagSet)
+                    elif namedTypes[idx].isOptional or namedTypes[idx].isDefaulted:
+                        idx = namedTypes.getPositionNearType(component.effectiveTagSet, idx)
+
+                asn1Object.setComponentByPosition(
+                    idx, component,
+                    verifyConstraints=False,
+                    matchTags=False, matchConstraints=False
+                )
+
+                seenIndices.add(idx)
+                idx += 1
+
+            else:
+                raise error.SubstrateUnderrunError(
+                    'No EOO seen before substrate ends'
+                )
+
+            if namedTypes:
+                if not namedTypes.requiredComponents.issubset(seenIndices):
+                    raise error.PyAsn1Error('ASN.1 object %s has uninitialized components' % asn1Object.__class__.__name__)
+
+                if  namedTypes.hasOpenTypes:
+
+                    openTypes = options.get('openTypes', None)
+
+                    if openTypes or options.get('decodeOpenTypes', False):
+
+                        for idx, namedType in enumerate(namedTypes.namedTypes):
+                            if not namedType.openType:
+                                continue
+
+                            if namedType.isOptional and not asn1Object.getComponentByPosition(idx).isValue:
+                                continue
+
+                            governingValue = asn1Object.getComponentByName(
+                                namedType.openType.name
+                            )
+
+                            try:
+                                openType = openTypes[governingValue]
+
+                            except KeyError:
+
+                                try:
+                                    openType = namedType.openType[governingValue]
+
+                                except KeyError:
+                                    continue
+
+                            component, rest = decodeFun(
+                                asn1Object.getComponentByPosition(idx).asOctets(),
+                                asn1Spec=openType, allowEoo=True
+                            )
+
+                            if component is not eoo.endOfOctets:
+                                asn1Object.setComponentByPosition(idx, component)
+
+                else:
+                    asn1Object.verifySizeSpec()
+
+        else:
+            asn1Object = asn1Spec.clone()
+
+            componentType = asn1Spec.componentType
+
+            idx = 0
+
+            while substrate:
+                component, substrate = decodeFun(substrate, componentType, allowEoo=True, **options)
+
+                if component is eoo.endOfOctets:
+                    break
+
+                asn1Object.setComponentByPosition(
+                    idx, component,
+                    verifyConstraints=False,
+                    matchTags=False, matchConstraints=False
+                )
+                idx += 1
+            else:
+                raise error.SubstrateUnderrunError(
+                    'No EOO seen before substrate ends'
+                )
+
+        return asn1Object, substrate
+
+
+class SequenceOrSequenceOfDecoder(UniversalConstructedTypeDecoder):
+    protoRecordComponent = univ.Sequence()
+    protoSequenceComponent = univ.SequenceOf()
+
+
+class SequenceDecoder(SequenceOrSequenceOfDecoder):
+    protoComponent = univ.Sequence()
+
+
+class SequenceOfDecoder(SequenceOrSequenceOfDecoder):
+    protoComponent = univ.SequenceOf()
+
+
+class SetOrSetOfDecoder(UniversalConstructedTypeDecoder):
+    protoRecordComponent = univ.Set()
+    protoSequenceComponent = univ.SetOf()
+
+
+class SetDecoder(SetOrSetOfDecoder):
+    protoComponent = univ.Set()
+
+
+
+class SetOfDecoder(SetOrSetOfDecoder):
+    protoComponent = univ.SetOf()
+
+
+class ChoiceDecoder(AbstractConstructedDecoder):
+    protoComponent = univ.Choice()
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        head, tail = substrate[:length], substrate[length:]
+
+        if asn1Spec is None:
+            asn1Object = self.protoComponent.clone(tagSet=tagSet)
+        else:
+            asn1Object = asn1Spec.clone()
+
+        if substrateFun:
+            return substrateFun(asn1Object, substrate, length)
+
+        if asn1Object.tagSet == tagSet:  # explicitly tagged Choice
+            component, head = decodeFun(
+                head, asn1Object.componentTagMap, **options
+            )
+
+        else:
+            component, head = decodeFun(
+                head, asn1Object.componentTagMap,
+                tagSet, length, state, **options
+            )
+
+        effectiveTagSet = component.effectiveTagSet
+
+        asn1Object.setComponentByType(
+            effectiveTagSet, component,
+            verifyConstraints=False,
+            matchTags=False, matchConstraints=False,
+            innerFlag=False
+        )
+
+        return asn1Object, tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        if asn1Spec is None:
+            asn1Object = self.protoComponent.clone(tagSet=tagSet)
+        else:
+            asn1Object = asn1Spec.clone()
+
+        if substrateFun:
+            return substrateFun(asn1Object, substrate, length)
+
+        if asn1Object.tagSet == tagSet:  # explicitly tagged Choice
+            component, substrate = decodeFun(
+                substrate, asn1Object.componentType.tagMapUnique, **options
+            )
+            # eat up EOO marker
+            eooMarker, substrate = decodeFun(
+                substrate, allowEoo=True, **options
+            )
+            if eooMarker is not eoo.endOfOctets:
+                raise error.PyAsn1Error('No EOO seen before substrate ends')
+
+        else:
+            component, substrate = decodeFun(
+                substrate, asn1Object.componentType.tagMapUnique,
+                tagSet, length, state, **options
+            )
+
+        effectiveTagSet = component.effectiveTagSet
+
+        asn1Object.setComponentByType(
+            effectiveTagSet, component,
+            verifyConstraints=False,
+            matchTags=False, matchConstraints=False,
+            innerFlag=False
+        )
+
+        return asn1Object, substrate
+
+
+class AnyDecoder(AbstractSimpleDecoder):
+    protoComponent = univ.Any()
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        if asn1Spec is None or asn1Spec is not None and tagSet != asn1Spec.tagSet:
+            fullSubstrate = options['fullSubstrate']
+
+            # untagged Any container, recover inner header substrate
+            length += len(fullSubstrate) - len(substrate)
+            substrate = fullSubstrate
+
+        if substrateFun:
+            return substrateFun(self._createComponent(asn1Spec, tagSet, noValue, **options),
+                                substrate, length)
+
+        head, tail = substrate[:length], substrate[length:]
+
+        return self._createComponent(asn1Spec, tagSet, head, **options), tail
+
+    def indefLenValueDecoder(self, substrate, asn1Spec,
+                             tagSet=None, length=None, state=None,
+                             decodeFun=None, substrateFun=None,
+                             **options):
+        if asn1Spec is not None and tagSet == asn1Spec.tagSet:
+            # tagged Any type -- consume header substrate
+            header = null
+        else:
+            fullSubstrate = options['fullSubstrate']
+
+            # untagged Any, recover header substrate
+            header = fullSubstrate[:-len(substrate)]
+
+        # Any components do not inherit initial tag
+        asn1Spec = self.protoComponent
+
+        if substrateFun and substrateFun is not self.substrateCollector:
+            asn1Object = self._createComponent(asn1Spec, tagSet, noValue, **options)
+            return substrateFun(asn1Object, header + substrate, length + len(header))
+
+        # All inner fragments are of the same type, treat them as octet string
+        substrateFun = self.substrateCollector
+
+        while substrate:
+            component, substrate = decodeFun(substrate, asn1Spec,
+                                             substrateFun=substrateFun,
+                                             allowEoo=True, **options)
+            if component is eoo.endOfOctets:
+                break
+            header += component
+        else:
+            raise error.SubstrateUnderrunError(
+                'No EOO seen before substrate ends'
+            )
+        if substrateFun:
+            return header, substrate
+        else:
+            return self._createComponent(asn1Spec, tagSet, header, **options), substrate
+
+
+# character string types
+class UTF8StringDecoder(OctetStringDecoder):
+    protoComponent = char.UTF8String()
+
+
+class NumericStringDecoder(OctetStringDecoder):
+    protoComponent = char.NumericString()
+
+
+class PrintableStringDecoder(OctetStringDecoder):
+    protoComponent = char.PrintableString()
+
+
+class TeletexStringDecoder(OctetStringDecoder):
+    protoComponent = char.TeletexString()
+
+
+class VideotexStringDecoder(OctetStringDecoder):
+    protoComponent = char.VideotexString()
+
+
+class IA5StringDecoder(OctetStringDecoder):
+    protoComponent = char.IA5String()
+
+
+class GraphicStringDecoder(OctetStringDecoder):
+    protoComponent = char.GraphicString()
+
+
+class VisibleStringDecoder(OctetStringDecoder):
+    protoComponent = char.VisibleString()
+
+
+class GeneralStringDecoder(OctetStringDecoder):
+    protoComponent = char.GeneralString()
+
+
+class UniversalStringDecoder(OctetStringDecoder):
+    protoComponent = char.UniversalString()
+
+
+class BMPStringDecoder(OctetStringDecoder):
+    protoComponent = char.BMPString()
+
+
+# "useful" types
+class ObjectDescriptorDecoder(OctetStringDecoder):
+    protoComponent = useful.ObjectDescriptor()
+
+
+class GeneralizedTimeDecoder(OctetStringDecoder):
+    protoComponent = useful.GeneralizedTime()
+
+
+class UTCTimeDecoder(OctetStringDecoder):
+    protoComponent = useful.UTCTime()
+
+
+tagMap = {
+    univ.Integer.tagSet: IntegerDecoder(),
+    univ.Boolean.tagSet: BooleanDecoder(),
+    univ.BitString.tagSet: BitStringDecoder(),
+    univ.OctetString.tagSet: OctetStringDecoder(),
+    univ.Null.tagSet: NullDecoder(),
+    univ.ObjectIdentifier.tagSet: ObjectIdentifierDecoder(),
+    univ.Enumerated.tagSet: IntegerDecoder(),
+    univ.Real.tagSet: RealDecoder(),
+    univ.Sequence.tagSet: SequenceOrSequenceOfDecoder(),  # conflicts with SequenceOf
+    univ.Set.tagSet: SetOrSetOfDecoder(),  # conflicts with SetOf
+    univ.Choice.tagSet: ChoiceDecoder(),  # conflicts with Any
+    # character string types
+    char.UTF8String.tagSet: UTF8StringDecoder(),
+    char.NumericString.tagSet: NumericStringDecoder(),
+    char.PrintableString.tagSet: PrintableStringDecoder(),
+    char.TeletexString.tagSet: TeletexStringDecoder(),
+    char.VideotexString.tagSet: VideotexStringDecoder(),
+    char.IA5String.tagSet: IA5StringDecoder(),
+    char.GraphicString.tagSet: GraphicStringDecoder(),
+    char.VisibleString.tagSet: VisibleStringDecoder(),
+    char.GeneralString.tagSet: GeneralStringDecoder(),
+    char.UniversalString.tagSet: UniversalStringDecoder(),
+    char.BMPString.tagSet: BMPStringDecoder(),
+    # useful types
+    useful.ObjectDescriptor.tagSet: ObjectDescriptorDecoder(),
+    useful.GeneralizedTime.tagSet: GeneralizedTimeDecoder(),
+    useful.UTCTime.tagSet: UTCTimeDecoder()
+}
+
+# Type-to-codec map for ambiguous ASN.1 types
+typeMap = {
+    univ.Set.typeId: SetDecoder(),
+    univ.SetOf.typeId: SetOfDecoder(),
+    univ.Sequence.typeId: SequenceDecoder(),
+    univ.SequenceOf.typeId: SequenceOfDecoder(),
+    univ.Choice.typeId: ChoiceDecoder(),
+    univ.Any.typeId: AnyDecoder()
+}
+
+# Put in non-ambiguous types for faster codec lookup
+for typeDecoder in tagMap.values():
+    if typeDecoder.protoComponent is not None:
+        typeId = typeDecoder.protoComponent.__class__.typeId
+        if typeId is not None and typeId not in typeMap:
+            typeMap[typeId] = typeDecoder
+
+
+(stDecodeTag,
+ stDecodeLength,
+ stGetValueDecoder,
+ stGetValueDecoderByAsn1Spec,
+ stGetValueDecoderByTag,
+ stTryAsExplicitTag,
+ stDecodeValue,
+ stDumpRawValue,
+ stErrorCondition,
+ stStop) = [x for x in range(10)]
+
+
+class Decoder(object):
+    defaultErrorState = stErrorCondition
+    #    defaultErrorState = stDumpRawValue
+    defaultRawDecoder = AnyDecoder()
+    supportIndefLength = True
+
+    # noinspection PyDefaultArgument
+    def __init__(self, tagMap, typeMap={}):
+        self.__tagMap = tagMap
+        self.__typeMap = typeMap
+        # Tag & TagSet objects caches
+        self.__tagCache = {}
+        self.__tagSetCache = {}
+        self.__eooSentinel = ints2octs((0, 0))
+
+    def __call__(self, substrate, asn1Spec=None,
+                 tagSet=None, length=None, state=stDecodeTag,
+                 decodeFun=None, substrateFun=None,
+                 **options):
+
+        if debug.logger & debug.flagDecoder:
+            logger = debug.logger
+        else:
+            logger = None
+
+        if logger:
+            logger('decoder called at scope %s with state %d, working with up to %d octets of substrate: %s' % (debug.scope, state, len(substrate), debug.hexdump(substrate)))
+
+        allowEoo = options.pop('allowEoo', False)
+
+        # Look for end-of-octets sentinel
+        if allowEoo and self.supportIndefLength:
+            if substrate[:2] == self.__eooSentinel:
+                if logger:
+                    logger('end-of-octets sentinel found')
+                return eoo.endOfOctets, substrate[2:]
+
+        value = noValue
+
+        tagMap = self.__tagMap
+        typeMap = self.__typeMap
+        tagCache = self.__tagCache
+        tagSetCache = self.__tagSetCache
+
+        fullSubstrate = substrate
+
+        while state is not stStop:
+            if state is stDecodeTag:
+                if not substrate:
+                    raise error.SubstrateUnderrunError(
+                        'Short octet stream on tag decoding'
+                    )
+                # Decode tag
+                isShortTag = True
+                firstOctet = substrate[0]
+                substrate = substrate[1:]
+                try:
+                    lastTag = tagCache[firstOctet]
+                except KeyError:
+                    integerTag = oct2int(firstOctet)
+                    tagClass = integerTag & 0xC0
+                    tagFormat = integerTag & 0x20
+                    tagId = integerTag & 0x1F
+                    if tagId == 0x1F:
+                        isShortTag = False
+                        lengthOctetIdx = 0
+                        tagId = 0
+                        try:
+                            while True:
+                                integerTag = oct2int(substrate[lengthOctetIdx])
+                                lengthOctetIdx += 1
+                                tagId <<= 7
+                                tagId |= (integerTag & 0x7F)
+                                if not integerTag & 0x80:
+                                    break
+                            substrate = substrate[lengthOctetIdx:]
+                        except IndexError:
+                            raise error.SubstrateUnderrunError(
+                                'Short octet stream on long tag decoding'
+                            )
+                    lastTag = tag.Tag(
+                        tagClass=tagClass, tagFormat=tagFormat, tagId=tagId
+                    )
+                    if isShortTag:
+                        # cache short tags
+                        tagCache[firstOctet] = lastTag
+                if tagSet is None:
+                    if isShortTag:
+                        try:
+                            tagSet = tagSetCache[firstOctet]
+                        except KeyError:
+                            # base tag not recovered
+                            tagSet = tag.TagSet((), lastTag)
+                            tagSetCache[firstOctet] = tagSet
+                    else:
+                        tagSet = tag.TagSet((), lastTag)
+                else:
+                    tagSet = lastTag + tagSet
+                state = stDecodeLength
+                if logger:
+                    logger('tag decoded into %s, decoding length' % tagSet)
+            if state is stDecodeLength:
+                # Decode length
+                if not substrate:
+                    raise error.SubstrateUnderrunError(
+                        'Short octet stream on length decoding'
+                    )
+                firstOctet = oct2int(substrate[0])
+                if firstOctet < 128:
+                    size = 1
+                    length = firstOctet
+                elif firstOctet > 128:
+                    size = firstOctet & 0x7F
+                    # encoded in size bytes
+                    encodedLength = octs2ints(substrate[1:size + 1])
+                    # missing check on maximum size, which shouldn't be a
+                    # problem, we can handle more than is possible
+                    if len(encodedLength) != size:
+                        raise error.SubstrateUnderrunError(
+                            '%s<%s at %s' % (size, len(encodedLength), tagSet)
+                        )
+                    length = 0
+                    for lengthOctet in encodedLength:
+                        length <<= 8
+                        length |= lengthOctet
+                    size += 1
+                else:
+                    size = 1
+                    length = -1
+
+                substrate = substrate[size:]
+                if length == -1:
+                    if not self.supportIndefLength:
+                        raise error.PyAsn1Error('Indefinite length encoding not supported by this codec')
+                else:
+                    if len(substrate) < length:
+                        raise error.SubstrateUnderrunError('%d-octet short' % (length - len(substrate)))
+                state = stGetValueDecoder
+                if logger:
+                    logger('value length decoded into %d, payload substrate is: %s' % (length, debug.hexdump(length == -1 and substrate or substrate[:length])))
+            if state is stGetValueDecoder:
+                if asn1Spec is None:
+                    state = stGetValueDecoderByTag
+                else:
+                    state = stGetValueDecoderByAsn1Spec
+            #
+            # There're two ways of creating subtypes in ASN.1 what influences
+            # decoder operation. These methods are:
+            # 1) Either base types used in or no IMPLICIT tagging has been
+            #    applied on subtyping.
+            # 2) Subtype syntax drops base type information (by means of
+            #    IMPLICIT tagging.
+            # The first case allows for complete tag recovery from substrate
+            # while the second one requires original ASN.1 type spec for
+            # decoding.
+            #
+            # In either case a set of tags (tagSet) is coming from substrate
+            # in an incremental, tag-by-tag fashion (this is the case of
+            # EXPLICIT tag which is most basic). Outermost tag comes first
+            # from the wire.
+            #
+            if state is stGetValueDecoderByTag:
+                try:
+                    concreteDecoder = tagMap[tagSet]
+                except KeyError:
+                    concreteDecoder = None
+                if concreteDecoder:
+                    state = stDecodeValue
+                else:
+                    try:
+                        concreteDecoder = tagMap[tagSet[:1]]
+                    except KeyError:
+                        concreteDecoder = None
+                    if concreteDecoder:
+                        state = stDecodeValue
+                    else:
+                        state = stTryAsExplicitTag
+                if logger:
+                    logger('codec %s chosen by a built-in type, decoding %s' % (concreteDecoder and concreteDecoder.__class__.__name__ or "<none>", state is stDecodeValue and 'value' or 'as explicit tag'))
+                    debug.scope.push(concreteDecoder is None and '?' or concreteDecoder.protoComponent.__class__.__name__)
+            if state is stGetValueDecoderByAsn1Spec:
+                if asn1Spec.__class__ is tagmap.TagMap:
+                    try:
+                        chosenSpec = asn1Spec[tagSet]
+                    except KeyError:
+                        chosenSpec = None
+                    if logger:
+                        logger('candidate ASN.1 spec is a map of:')
+                        for firstOctet, v in asn1Spec.presentTypes.items():
+                            logger('  %s -> %s' % (firstOctet, v.__class__.__name__))
+                        if asn1Spec.skipTypes:
+                            logger('but neither of: ')
+                            for firstOctet, v in asn1Spec.skipTypes.items():
+                                logger('  %s -> %s' % (firstOctet, v.__class__.__name__))
+                        logger('new candidate ASN.1 spec is %s, chosen by %s' % (chosenSpec is None and '<none>' or chosenSpec.prettyPrintType(), tagSet))
+                elif tagSet == asn1Spec.tagSet or tagSet in asn1Spec.tagMap:
+                    chosenSpec = asn1Spec
+                    if logger:
+                        logger('candidate ASN.1 spec is %s' % asn1Spec.__class__.__name__)
+                else:
+                    chosenSpec = None
+
+                if chosenSpec is not None:
+                    try:
+                        # ambiguous type or just faster codec lookup
+                        concreteDecoder = typeMap[chosenSpec.typeId]
+                        if logger:
+                            logger('value decoder chosen for an ambiguous type by type ID %s' % (chosenSpec.typeId,))
+                    except KeyError:
+                        # use base type for codec lookup to recover untagged types
+                        baseTagSet = tag.TagSet(chosenSpec.tagSet.baseTag,  chosenSpec.tagSet.baseTag)
+                        try:
+                            # base type or tagged subtype
+                            concreteDecoder = tagMap[baseTagSet]
+                            if logger:
+                                logger('value decoder chosen by base %s' % (baseTagSet,))
+                        except KeyError:
+                            concreteDecoder = None
+                    if concreteDecoder:
+                        asn1Spec = chosenSpec
+                        state = stDecodeValue
+                    else:
+                        state = stTryAsExplicitTag
+                else:
+                    concreteDecoder = None
+                    state = stTryAsExplicitTag
+                if logger:
+                    logger('codec %s chosen by ASN.1 spec, decoding %s' % (state is stDecodeValue and concreteDecoder.__class__.__name__ or "<none>", state is stDecodeValue and 'value' or 'as explicit tag'))
+                    debug.scope.push(chosenSpec is None and '?' or chosenSpec.__class__.__name__)
+            if state is stDecodeValue:
+                if not options.get('recursiveFlag', True) and not substrateFun:  # deprecate this
+                    substrateFun = lambda a, b, c: (a, b[:c])
+
+                options.update(fullSubstrate=fullSubstrate)
+
+                if length == -1:  # indef length
+                    value, substrate = concreteDecoder.indefLenValueDecoder(
+                        substrate, asn1Spec,
+                        tagSet, length, stGetValueDecoder,
+                        self, substrateFun,
+                        **options
+                    )
+                else:
+                    value, substrate = concreteDecoder.valueDecoder(
+                        substrate, asn1Spec,
+                        tagSet, length, stGetValueDecoder,
+                        self, substrateFun,
+                        **options
+                    )
+
+                if logger:
+                    logger('codec %s yields type %s, value:\n%s\n...remaining substrate is: %s' % (concreteDecoder.__class__.__name__, value.__class__.__name__, isinstance(value, base.Asn1Item) and value.prettyPrint() or value, substrate and debug.hexdump(substrate) or '<none>'))
+
+                state = stStop
+                break
+            if state is stTryAsExplicitTag:
+                if tagSet and tagSet[0].tagFormat == tag.tagFormatConstructed and tagSet[0].tagClass != tag.tagClassUniversal:
+                    # Assume explicit tagging
+                    concreteDecoder = explicitTagDecoder
+                    state = stDecodeValue
+                else:
+                    concreteDecoder = None
+                    state = self.defaultErrorState
+                if logger:
+                    logger('codec %s chosen, decoding %s' % (concreteDecoder and concreteDecoder.__class__.__name__ or "<none>", state is stDecodeValue and 'value' or 'as failure'))
+            if state is stDumpRawValue:
+                concreteDecoder = self.defaultRawDecoder
+                if logger:
+                    logger('codec %s chosen, decoding value' % concreteDecoder.__class__.__name__)
+                state = stDecodeValue
+            if state is stErrorCondition:
+                raise error.PyAsn1Error(
+                    '%s not in asn1Spec: %r' % (tagSet, asn1Spec)
+                )
+        if logger:
+            debug.scope.pop()
+            logger('decoder left scope %s, call completed' % debug.scope)
+        return value, substrate
+
+
+#: Turns BER octet stream into an ASN.1 object.
+#:
+#: Takes BER octet-stream and decode it into an ASN.1 object
+#: (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative) which
+#: may be a scalar or an arbitrary nested structure.
+#:
+#: Parameters
+#: ----------
+#: substrate: :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     BER octet-stream
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec: any pyasn1 type object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:     A pyasn1 type object to act as a template guiding the decoder. Depending on the ASN.1 structure
+#:     being decoded, *asn1Spec* may or may not be required. Most common reason for
+#:     it to require is that ASN.1 structure is encoded in *IMPLICIT* tagging mode.
+#:
+#: Returns
+#: -------
+#: : :py:class:`tuple`
+#:     A tuple of pyasn1 object recovered from BER substrate (:py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     and the unprocessed trailing portion of the *substrate* (may be empty)
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On decoding errors
+#:
+#: Examples
+#: --------
+#: Decode BER serialisation without ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> s, _ = decode(b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03')
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+#: Decode BER serialisation with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> s, _ = decode(b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03', asn1Spec=seq)
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+decode = Decoder(tagMap, typeMap)
+
+# XXX
+# non-recursive decoding; return position rather than substrate
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/encoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/encoder.py
new file mode 100644
index 0000000..28c5071
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/encoder.py
@@ -0,0 +1,721 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import debug
+from pyasn1 import error
+from pyasn1.codec.ber import eoo
+from pyasn1.compat.integer import to_bytes
+from pyasn1.compat.octets import (int2oct, oct2int, ints2octs, null,
+                                  str2octs, isOctetsType)
+from pyasn1.type import char
+from pyasn1.type import tag
+from pyasn1.type import univ
+from pyasn1.type import useful
+
+__all__ = ['encode']
+
+
+class AbstractItemEncoder(object):
+    supportIndefLenMode = True
+
+    # An outcome of otherwise legit call `encodeFun(eoo.endOfOctets)`
+    eooIntegerSubstrate = (0, 0)
+    eooOctetsSubstrate = ints2octs(eooIntegerSubstrate)
+
+    # noinspection PyMethodMayBeStatic
+    def encodeTag(self, singleTag, isConstructed):
+        tagClass, tagFormat, tagId = singleTag
+        encodedTag = tagClass | tagFormat
+        if isConstructed:
+            encodedTag |= tag.tagFormatConstructed
+        if tagId < 31:
+            return encodedTag | tagId,
+        else:
+            substrate = tagId & 0x7f,
+            tagId >>= 7
+            while tagId:
+                substrate = (0x80 | (tagId & 0x7f),) + substrate
+                tagId >>= 7
+            return (encodedTag | 0x1F,) + substrate
+
+    def encodeLength(self, length, defMode):
+        if not defMode and self.supportIndefLenMode:
+            return (0x80,)
+        if length < 0x80:
+            return length,
+        else:
+            substrate = ()
+            while length:
+                substrate = (length & 0xff,) + substrate
+                length >>= 8
+            substrateLen = len(substrate)
+            if substrateLen > 126:
+                raise error.PyAsn1Error('Length octets overflow (%d)' % substrateLen)
+            return (0x80 | substrateLen,) + substrate
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        raise error.PyAsn1Error('Not implemented')
+
+    def encode(self, value, asn1Spec=None, encodeFun=None, **options):
+
+        if asn1Spec is None:
+            tagSet = value.tagSet
+        else:
+            tagSet = asn1Spec.tagSet
+
+        # untagged item?
+        if not tagSet:
+            substrate, isConstructed, isOctets = self.encodeValue(
+                value, asn1Spec, encodeFun, **options
+            )
+            return substrate
+
+        defMode = options.get('defMode', True)
+
+        for idx, singleTag in enumerate(tagSet.superTags):
+
+            defModeOverride = defMode
+
+            # base tag?
+            if not idx:
+                substrate, isConstructed, isOctets = self.encodeValue(
+                    value, asn1Spec, encodeFun, **options
+                )
+
+                if not substrate and isConstructed and options.get('ifNotEmpty', False):
+                    return substrate
+
+                # primitive form implies definite mode
+                if not isConstructed:
+                    defModeOverride = True
+
+            header = self.encodeTag(singleTag, isConstructed)
+            header += self.encodeLength(len(substrate), defModeOverride)
+
+            if isOctets:
+                substrate = ints2octs(header) + substrate
+
+                if not defModeOverride:
+                    substrate += self.eooOctetsSubstrate
+
+            else:
+                substrate = header + substrate
+
+                if not defModeOverride:
+                    substrate += self.eooIntegerSubstrate
+
+        if not isOctets:
+            substrate = ints2octs(substrate)
+
+        return substrate
+
+
+class EndOfOctetsEncoder(AbstractItemEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        return null, False, True
+
+
+class BooleanEncoder(AbstractItemEncoder):
+    supportIndefLenMode = False
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        return value and (1,) or (0,), False, False
+
+
+class IntegerEncoder(AbstractItemEncoder):
+    supportIndefLenMode = False
+    supportCompactZero = False
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if value == 0:
+            # de-facto way to encode zero
+            if self.supportCompactZero:
+                return (), False, False
+            else:
+                return (0,), False, False
+
+        return to_bytes(int(value), signed=True), False, True
+
+
+class BitStringEncoder(AbstractItemEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is not None:
+            # TODO: try to avoid ASN.1 schema instantiation
+            value = asn1Spec.clone(value)
+
+        valueLength = len(value)
+        if valueLength % 8:
+            alignedValue = value << (8 - valueLength % 8)
+        else:
+            alignedValue = value
+
+        maxChunkSize = options.get('maxChunkSize', 0)
+        if not maxChunkSize or len(alignedValue) <= maxChunkSize * 8:
+            substrate = alignedValue.asOctets()
+            return int2oct(len(substrate) * 8 - valueLength) + substrate, False, True
+
+        baseTag = value.tagSet.baseTag
+
+        # strip off explicit tags
+        if baseTag:
+            tagSet = tag.TagSet(baseTag, baseTag)
+        else:
+            tagSet = tag.TagSet()
+
+        alignedValue = alignedValue.clone(tagSet=tagSet)
+
+        stop = 0
+        substrate = null
+        while stop < valueLength:
+            start = stop
+            stop = min(start + maxChunkSize * 8, valueLength)
+            substrate += encodeFun(alignedValue[start:stop], asn1Spec, **options)
+
+        return substrate, True, True
+
+
+class OctetStringEncoder(AbstractItemEncoder):
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+
+        if asn1Spec is None:
+            substrate = value.asOctets()
+
+        elif not isOctetsType(value):
+            substrate = asn1Spec.clone(value).asOctets()
+
+        else:
+            substrate = value
+
+        maxChunkSize = options.get('maxChunkSize', 0)
+
+        if not maxChunkSize or len(substrate) <= maxChunkSize:
+            return substrate, False, True
+
+        else:
+
+            # strip off explicit tags for inner chunks
+
+            if asn1Spec is None:
+                baseTag = value.tagSet.baseTag
+
+                # strip off explicit tags
+                if baseTag:
+                    tagSet = tag.TagSet(baseTag, baseTag)
+                else:
+                    tagSet = tag.TagSet()
+
+                asn1Spec = value.clone(tagSet=tagSet)
+
+            elif not isOctetsType(value):
+                baseTag = asn1Spec.tagSet.baseTag
+
+                # strip off explicit tags
+                if baseTag:
+                    tagSet = tag.TagSet(baseTag, baseTag)
+                else:
+                    tagSet = tag.TagSet()
+
+                asn1Spec = asn1Spec.clone(tagSet=tagSet)
+
+            pos = 0
+            substrate = null
+
+            while True:
+                chunk = value[pos:pos + maxChunkSize]
+                if not chunk:
+                    break
+
+                substrate += encodeFun(chunk, asn1Spec, **options)
+                pos += maxChunkSize
+
+            return substrate, True, True
+
+
+class NullEncoder(AbstractItemEncoder):
+    supportIndefLenMode = False
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        return null, False, True
+
+
+class ObjectIdentifierEncoder(AbstractItemEncoder):
+    supportIndefLenMode = False
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is not None:
+            value = asn1Spec.clone(value)
+
+        oid = value.asTuple()
+
+        # Build the first pair
+        try:
+            first = oid[0]
+            second = oid[1]
+
+        except IndexError:
+            raise error.PyAsn1Error('Short OID %s' % (value,))
+
+        if 0 <= second <= 39:
+            if first == 1:
+                oid = (second + 40,) + oid[2:]
+            elif first == 0:
+                oid = (second,) + oid[2:]
+            elif first == 2:
+                oid = (second + 80,) + oid[2:]
+            else:
+                raise error.PyAsn1Error('Impossible first/second arcs at %s' % (value,))
+        elif first == 2:
+            oid = (second + 80,) + oid[2:]
+        else:
+            raise error.PyAsn1Error('Impossible first/second arcs at %s' % (value,))
+
+        octets = ()
+
+        # Cycle through subIds
+        for subOid in oid:
+            if 0 <= subOid <= 127:
+                # Optimize for the common case
+                octets += (subOid,)
+            elif subOid > 127:
+                # Pack large Sub-Object IDs
+                res = (subOid & 0x7f,)
+                subOid >>= 7
+                while subOid:
+                    res = (0x80 | (subOid & 0x7f),) + res
+                    subOid >>= 7
+                # Add packed Sub-Object ID to resulted Object ID
+                octets += res
+            else:
+                raise error.PyAsn1Error('Negative OID arc %s at %s' % (subOid, value))
+
+        return octets, False, False
+
+
+class RealEncoder(AbstractItemEncoder):
+    supportIndefLenMode = 0
+    binEncBase = 2  # set to None to choose encoding base automatically
+
+    @staticmethod
+    def _dropFloatingPoint(m, encbase, e):
+        ms, es = 1, 1
+        if m < 0:
+            ms = -1  # mantissa sign
+        if e < 0:
+            es = -1  # exponenta sign 
+        m *= ms
+        if encbase == 8:
+            m *= 2 ** (abs(e) % 3 * es)
+            e = abs(e) // 3 * es
+        elif encbase == 16:
+            m *= 2 ** (abs(e) % 4 * es)
+            e = abs(e) // 4 * es
+
+        while True:
+            if int(m) != m:
+                m *= encbase
+                e -= 1
+                continue
+            break
+        return ms, int(m), encbase, e
+
+    def _chooseEncBase(self, value):
+        m, b, e = value
+        encBase = [2, 8, 16]
+        if value.binEncBase in encBase:
+            return self._dropFloatingPoint(m, value.binEncBase, e)
+        elif self.binEncBase in encBase:
+            return self._dropFloatingPoint(m, self.binEncBase, e)
+        # auto choosing base 2/8/16 
+        mantissa = [m, m, m]
+        exponenta = [e, e, e]
+        sign = 1
+        encbase = 2
+        e = float('inf')
+        for i in range(3):
+            (sign,
+             mantissa[i],
+             encBase[i],
+             exponenta[i]) = self._dropFloatingPoint(mantissa[i], encBase[i], exponenta[i])
+            if abs(exponenta[i]) < abs(e) or (abs(exponenta[i]) == abs(e) and mantissa[i] < m):
+                e = exponenta[i]
+                m = int(mantissa[i])
+                encbase = encBase[i]
+        return sign, m, encbase, e
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is not None:
+            value = asn1Spec.clone(value)
+
+        if value.isPlusInf:
+            return (0x40,), False, False
+        if value.isMinusInf:
+            return (0x41,), False, False
+        m, b, e = value
+        if not m:
+            return null, False, True
+        if b == 10:
+            return str2octs('\x03%dE%s%d' % (m, e == 0 and '+' or '', e)), False, True
+        elif b == 2:
+            fo = 0x80  # binary encoding
+            ms, m, encbase, e = self._chooseEncBase(value)
+            if ms < 0:  # mantissa sign
+                fo |= 0x40  # sign bit
+            # exponenta & mantissa normalization
+            if encbase == 2:
+                while m & 0x1 == 0:
+                    m >>= 1
+                    e += 1
+            elif encbase == 8:
+                while m & 0x7 == 0:
+                    m >>= 3
+                    e += 1
+                fo |= 0x10
+            else:  # encbase = 16
+                while m & 0xf == 0:
+                    m >>= 4
+                    e += 1
+                fo |= 0x20
+            sf = 0  # scale factor
+            while m & 0x1 == 0:
+                m >>= 1
+                sf += 1
+            if sf > 3:
+                raise error.PyAsn1Error('Scale factor overflow')  # bug if raised
+            fo |= sf << 2
+            eo = null
+            if e == 0 or e == -1:
+                eo = int2oct(e & 0xff)
+            else:
+                while e not in (0, -1):
+                    eo = int2oct(e & 0xff) + eo
+                    e >>= 8
+                if e == 0 and eo and oct2int(eo[0]) & 0x80:
+                    eo = int2oct(0) + eo
+                if e == -1 and eo and not (oct2int(eo[0]) & 0x80):
+                    eo = int2oct(0xff) + eo
+            n = len(eo)
+            if n > 0xff:
+                raise error.PyAsn1Error('Real exponent overflow')
+            if n == 1:
+                pass
+            elif n == 2:
+                fo |= 1
+            elif n == 3:
+                fo |= 2
+            else:
+                fo |= 3
+                eo = int2oct(n & 0xff) + eo
+            po = null
+            while m:
+                po = int2oct(m & 0xff) + po
+                m >>= 8
+            substrate = int2oct(fo) + eo + po
+            return substrate, False, True
+        else:
+            raise error.PyAsn1Error('Prohibited Real base %s' % b)
+
+
+class SequenceEncoder(AbstractItemEncoder):
+    omitEmptyOptionals = False
+
+    # TODO: handling three flavors of input is too much -- split over codecs
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+
+        substrate = null
+
+        if asn1Spec is None:
+            # instance of ASN.1 schema
+            value.verifySizeSpec()
+
+            namedTypes = value.componentType
+
+            for idx, component in enumerate(value.values()):
+                if namedTypes:
+                    namedType = namedTypes[idx]
+
+                    if namedType.isOptional and not component.isValue:
+                            continue
+
+                    if namedType.isDefaulted and component == namedType.asn1Object:
+                            continue
+
+                    if self.omitEmptyOptionals:
+                        options.update(ifNotEmpty=namedType.isOptional)
+
+                chunk = encodeFun(component, asn1Spec, **options)
+
+                # wrap open type blob if needed
+                if namedTypes and namedType.openType:
+                    wrapType = namedType.asn1Object
+                    if wrapType.tagSet and not wrapType.isSameTypeWith(component):
+                        chunk = encodeFun(chunk, wrapType, **options)
+
+                substrate += chunk
+
+        else:
+            # bare Python value + ASN.1 schema
+            for idx, namedType in enumerate(asn1Spec.componentType.namedTypes):
+
+                try:
+                    component = value[namedType.name]
+
+                except KeyError:
+                    raise error.PyAsn1Error('Component name "%s" not found in %r' % (namedType.name, value))
+
+                if namedType.isOptional and namedType.name not in value:
+                    continue
+
+                if namedType.isDefaulted and component == namedType.asn1Object:
+                    continue
+
+                if self.omitEmptyOptionals:
+                    options.update(ifNotEmpty=namedType.isOptional)
+
+                chunk = encodeFun(component, asn1Spec[idx], **options)
+
+                # wrap open type blob if needed
+                if namedType.openType:
+                    wrapType = namedType.asn1Object
+                    if wrapType.tagSet and not wrapType.isSameTypeWith(component):
+                        chunk = encodeFun(chunk, wrapType, **options)
+
+                substrate += chunk
+
+        return substrate, True, True
+
+
+class SequenceOfEncoder(AbstractItemEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is None:
+            value.verifySizeSpec()
+        else:
+            asn1Spec = asn1Spec.componentType
+
+        substrate = null
+
+        for idx, component in enumerate(value):
+            substrate += encodeFun(value[idx], asn1Spec, **options)
+
+        return substrate, True, True
+
+
+class ChoiceEncoder(AbstractItemEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is None:
+            component = value.getComponent()
+        else:
+            names = [namedType.name for namedType in asn1Spec.componentType.namedTypes
+                     if namedType.name in value]
+            if len(names) != 1:
+                raise error.PyAsn1Error('%s components for Choice at %r' % (len(names) and 'Multiple ' or 'None ', value))
+
+            name = names[0]
+
+            component = value[name]
+            asn1Spec = asn1Spec[name]
+
+        return encodeFun(component, asn1Spec, **options), True, True
+
+
+class AnyEncoder(OctetStringEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is None:
+            value = value.asOctets()
+        elif not isOctetsType(value):
+            value = asn1Spec.clone(value).asOctets()
+
+        return value, not options.get('defMode', True), True
+
+
+tagMap = {
+    eoo.endOfOctets.tagSet: EndOfOctetsEncoder(),
+    univ.Boolean.tagSet: BooleanEncoder(),
+    univ.Integer.tagSet: IntegerEncoder(),
+    univ.BitString.tagSet: BitStringEncoder(),
+    univ.OctetString.tagSet: OctetStringEncoder(),
+    univ.Null.tagSet: NullEncoder(),
+    univ.ObjectIdentifier.tagSet: ObjectIdentifierEncoder(),
+    univ.Enumerated.tagSet: IntegerEncoder(),
+    univ.Real.tagSet: RealEncoder(),
+    # Sequence & Set have same tags as SequenceOf & SetOf
+    univ.SequenceOf.tagSet: SequenceOfEncoder(),
+    univ.SetOf.tagSet: SequenceOfEncoder(),
+    univ.Choice.tagSet: ChoiceEncoder(),
+    # character string types
+    char.UTF8String.tagSet: OctetStringEncoder(),
+    char.NumericString.tagSet: OctetStringEncoder(),
+    char.PrintableString.tagSet: OctetStringEncoder(),
+    char.TeletexString.tagSet: OctetStringEncoder(),
+    char.VideotexString.tagSet: OctetStringEncoder(),
+    char.IA5String.tagSet: OctetStringEncoder(),
+    char.GraphicString.tagSet: OctetStringEncoder(),
+    char.VisibleString.tagSet: OctetStringEncoder(),
+    char.GeneralString.tagSet: OctetStringEncoder(),
+    char.UniversalString.tagSet: OctetStringEncoder(),
+    char.BMPString.tagSet: OctetStringEncoder(),
+    # useful types
+    useful.ObjectDescriptor.tagSet: OctetStringEncoder(),
+    useful.GeneralizedTime.tagSet: OctetStringEncoder(),
+    useful.UTCTime.tagSet: OctetStringEncoder()
+}
+
+# Put in ambiguous & non-ambiguous types for faster codec lookup
+typeMap = {
+    univ.Boolean.typeId: BooleanEncoder(),
+    univ.Integer.typeId: IntegerEncoder(),
+    univ.BitString.typeId: BitStringEncoder(),
+    univ.OctetString.typeId: OctetStringEncoder(),
+    univ.Null.typeId: NullEncoder(),
+    univ.ObjectIdentifier.typeId: ObjectIdentifierEncoder(),
+    univ.Enumerated.typeId: IntegerEncoder(),
+    univ.Real.typeId: RealEncoder(),
+    # Sequence & Set have same tags as SequenceOf & SetOf
+    univ.Set.typeId: SequenceEncoder(),
+    univ.SetOf.typeId: SequenceOfEncoder(),
+    univ.Sequence.typeId: SequenceEncoder(),
+    univ.SequenceOf.typeId: SequenceOfEncoder(),
+    univ.Choice.typeId: ChoiceEncoder(),
+    univ.Any.typeId: AnyEncoder(),
+    # character string types
+    char.UTF8String.typeId: OctetStringEncoder(),
+    char.NumericString.typeId: OctetStringEncoder(),
+    char.PrintableString.typeId: OctetStringEncoder(),
+    char.TeletexString.typeId: OctetStringEncoder(),
+    char.VideotexString.typeId: OctetStringEncoder(),
+    char.IA5String.typeId: OctetStringEncoder(),
+    char.GraphicString.typeId: OctetStringEncoder(),
+    char.VisibleString.typeId: OctetStringEncoder(),
+    char.GeneralString.typeId: OctetStringEncoder(),
+    char.UniversalString.typeId: OctetStringEncoder(),
+    char.BMPString.typeId: OctetStringEncoder(),
+    # useful types
+    useful.ObjectDescriptor.typeId: OctetStringEncoder(),
+    useful.GeneralizedTime.typeId: OctetStringEncoder(),
+    useful.UTCTime.typeId: OctetStringEncoder()
+}
+
+
+class Encoder(object):
+    fixedDefLengthMode = None
+    fixedChunkSize = None
+
+    # noinspection PyDefaultArgument
+    def __init__(self, tagMap, typeMap={}):
+        self.__tagMap = tagMap
+        self.__typeMap = typeMap
+
+    def __call__(self, value, asn1Spec=None, **options):
+        try:
+            if asn1Spec is None:
+                typeId = value.typeId
+            else:
+                typeId = asn1Spec.typeId
+
+        except AttributeError:
+            raise error.PyAsn1Error('Value %r is not ASN.1 type instance '
+                                    'and "asn1Spec" not given' % (value,))
+
+        if debug.logger & debug.flagEncoder:
+            logger = debug.logger
+        else:
+            logger = None
+
+        if logger:
+            logger('encoder called in %sdef mode, chunk size %s for '
+                   'type %s, value:\n%s' % (not options.get('defMode', True) and 'in' or '', options.get('maxChunkSize', 0), asn1Spec is None and value.prettyPrintType() or asn1Spec.prettyPrintType(), value))
+
+        if self.fixedDefLengthMode is not None:
+            options.update(defMode=self.fixedDefLengthMode)
+
+        if self.fixedChunkSize is not None:
+            options.update(maxChunkSize=self.fixedChunkSize)
+
+
+        try:
+            concreteEncoder = self.__typeMap[typeId]
+
+            if logger:
+                logger('using value codec %s chosen by type ID %s' % (concreteEncoder.__class__.__name__, typeId))
+
+        except KeyError:
+            if asn1Spec is None:
+                tagSet = value.tagSet
+            else:
+                tagSet = asn1Spec.tagSet
+
+            # use base type for codec lookup to recover untagged types
+            baseTagSet = tag.TagSet(tagSet.baseTag, tagSet.baseTag)
+
+            try:
+                concreteEncoder = self.__tagMap[baseTagSet]
+
+            except KeyError:
+                raise error.PyAsn1Error('No encoder for %r (%s)' % (value, tagSet))
+
+            if logger:
+                logger('using value codec %s chosen by tagSet %s' % (concreteEncoder.__class__.__name__, tagSet))
+
+        substrate = concreteEncoder.encode(value, asn1Spec, self, **options)
+
+        if logger:
+            logger('codec %s built %s octets of substrate: %s\nencoder completed' % (concreteEncoder, len(substrate), debug.hexdump(substrate)))
+
+        return substrate
+
+#: Turns ASN.1 object into BER octet stream.
+#:
+#: Takes any ASN.1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#: walks all its components recursively and produces a BER octet stream.
+#:
+#: Parameters
+#: ----------
+#: value: either a Python or pyasn1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     A Python or pyasn1 object to encode. If Python object is given, `asnSpec`
+#:     parameter is required to guide the encoding process.
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec:
+#:     Optional ASN.1 schema or value object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:
+#: defMode: :py:class:`bool`
+#:     If `False`, produces indefinite length encoding
+#:
+#: maxChunkSize: :py:class:`int`
+#:     Maximum chunk size in chunked encoding mode (0 denotes unlimited chunk size)
+#:
+#: Returns
+#: -------
+#: : :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     Given ASN.1 object encoded into BER octetstream
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On encoding errors
+#:
+#: Examples
+#: --------
+#: Encode Python value into BER with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> encode([1, 2, 3], asn1Spec=seq)
+#:    b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03'
+#:
+#: Encode ASN.1 value object into BER
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> seq.extend([1, 2, 3])
+#:    >>> encode(seq)
+#:    b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03'
+#:
+encode = Encoder(tagMap, typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/ber/eoo.py b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/eoo.py
new file mode 100644
index 0000000..044e2df
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/ber/eoo.py
@@ -0,0 +1,28 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1.type import base
+from pyasn1.type import tag
+
+__all__ = ['endOfOctets']
+
+
+class EndOfOctets(base.AbstractSimpleAsn1Item):
+    defaultValue = 0
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x00)
+    )
+
+    _instance = None
+
+    def __new__(cls, *args, **kwargs):
+        if cls._instance is None:
+            cls._instance = object.__new__(cls, *args, **kwargs)
+
+        return cls._instance
+
+
+endOfOctets = EndOfOctets()
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/cer/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/cer/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/cer/decoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/decoder.py
new file mode 100644
index 0000000..f89e165
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/decoder.py
@@ -0,0 +1,114 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import error
+from pyasn1.codec.ber import decoder
+from pyasn1.compat.octets import oct2int
+from pyasn1.type import univ
+
+__all__ = ['decode']
+
+
+class BooleanDecoder(decoder.AbstractSimpleDecoder):
+    protoComponent = univ.Boolean(0)
+
+    def valueDecoder(self, substrate, asn1Spec,
+                     tagSet=None, length=None, state=None,
+                     decodeFun=None, substrateFun=None,
+                     **options):
+        head, tail = substrate[:length], substrate[length:]
+        if not head or length != 1:
+            raise error.PyAsn1Error('Not single-octet Boolean payload')
+        byte = oct2int(head[0])
+        # CER/DER specifies encoding of TRUE as 0xFF and FALSE as 0x0, while
+        # BER allows any non-zero value as TRUE; cf. sections 8.2.2. and 11.1 
+        # in http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
+        if byte == 0xff:
+            value = 1
+        elif byte == 0x00:
+            value = 0
+        else:
+            raise error.PyAsn1Error('Unexpected Boolean payload: %s' % byte)
+        return self._createComponent(asn1Spec, tagSet, value, **options), tail
+
+# TODO: prohibit non-canonical encoding
+BitStringDecoder = decoder.BitStringDecoder
+OctetStringDecoder = decoder.OctetStringDecoder
+RealDecoder = decoder.RealDecoder
+
+tagMap = decoder.tagMap.copy()
+tagMap.update(
+    {univ.Boolean.tagSet: BooleanDecoder(),
+     univ.BitString.tagSet: BitStringDecoder(),
+     univ.OctetString.tagSet: OctetStringDecoder(),
+     univ.Real.tagSet: RealDecoder()}
+)
+
+typeMap = decoder.typeMap.copy()
+
+# Put in non-ambiguous types for faster codec lookup
+for typeDecoder in tagMap.values():
+    if typeDecoder.protoComponent is not None:
+        typeId = typeDecoder.protoComponent.__class__.typeId
+        if typeId is not None and typeId not in typeMap:
+            typeMap[typeId] = typeDecoder
+
+
+class Decoder(decoder.Decoder):
+    pass
+
+
+#: Turns CER octet stream into an ASN.1 object.
+#:
+#: Takes CER octet-stream and decode it into an ASN.1 object
+#: (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative) which
+#: may be a scalar or an arbitrary nested structure.
+#:
+#: Parameters
+#: ----------
+#: substrate: :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     CER octet-stream
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec: any pyasn1 type object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:     A pyasn1 type object to act as a template guiding the decoder. Depending on the ASN.1 structure
+#:     being decoded, *asn1Spec* may or may not be required. Most common reason for
+#:     it to require is that ASN.1 structure is encoded in *IMPLICIT* tagging mode.
+#:
+#: Returns
+#: -------
+#: : :py:class:`tuple`
+#:     A tuple of pyasn1 object recovered from CER substrate (:py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     and the unprocessed trailing portion of the *substrate* (may be empty)
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On decoding errors
+#:
+#: Examples
+#: --------
+#: Decode CER serialisation without ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> s, _ = decode(b'0\x80\x02\x01\x01\x02\x01\x02\x02\x01\x03\x00\x00')
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+#: Decode CER serialisation with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> s, _ = decode(b'0\x80\x02\x01\x01\x02\x01\x02\x02\x01\x03\x00\x00', asn1Spec=seq)
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+decode = Decoder(tagMap, decoder.typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/cer/encoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/encoder.py
new file mode 100644
index 0000000..8bf77d2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/cer/encoder.py
@@ -0,0 +1,296 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import error
+from pyasn1.codec.ber import encoder
+from pyasn1.compat.octets import str2octs, null
+from pyasn1.type import univ
+from pyasn1.type import useful
+
+__all__ = ['encode']
+
+
+class BooleanEncoder(encoder.IntegerEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if value == 0:
+            substrate = (0,)
+        else:
+            substrate = (255,)
+        return substrate, False, False
+
+
+class RealEncoder(encoder.RealEncoder):
+    def _chooseEncBase(self, value):
+        m, b, e = value
+        return self._dropFloatingPoint(m, b, e)
+
+
+# specialized GeneralStringEncoder here
+
+class TimeEncoderMixIn(object):
+    zchar, = str2octs('Z')
+    pluschar, = str2octs('+')
+    minuschar, = str2octs('-')
+    commachar, = str2octs(',')
+    minLength = 12
+    maxLength = 19
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        # Encoding constraints:
+        # - minutes are mandatory, seconds are optional
+        # - subseconds must NOT be zero
+        # - no hanging fraction dot
+        # - time in UTC (Z)
+        # - only dot is allowed for fractions
+
+        if asn1Spec is not None:
+            value = asn1Spec.clone(value)
+
+        octets = value.asOctets()
+
+        if not self.minLength < len(octets) < self.maxLength:
+            raise error.PyAsn1Error('Length constraint violated: %r' % value)
+
+        if self.pluschar in octets or self.minuschar in octets:
+            raise error.PyAsn1Error('Must be UTC time: %r' % octets)
+
+        if octets[-1] != self.zchar:
+            raise error.PyAsn1Error('Missing "Z" time zone specifier: %r' % octets)
+
+        if self.commachar in octets:
+            raise error.PyAsn1Error('Comma in fractions disallowed: %r' % value)
+
+        options.update(maxChunkSize=1000)
+
+        return encoder.OctetStringEncoder.encodeValue(
+            self, value, asn1Spec, encodeFun, **options
+        )
+
+
+class GeneralizedTimeEncoder(TimeEncoderMixIn, encoder.OctetStringEncoder):
+    minLength = 12
+    maxLength = 19
+
+
+class UTCTimeEncoder(TimeEncoderMixIn, encoder.OctetStringEncoder):
+    minLength = 10
+    maxLength = 14
+
+
+class SetEncoder(encoder.SequenceEncoder):
+    @staticmethod
+    def _componentSortKey(componentAndType):
+        """Sort SET components by tag
+
+        Sort regardless of the Choice value (static sort)
+        """
+        component, asn1Spec = componentAndType
+
+        if asn1Spec is None:
+            asn1Spec = component
+
+        if asn1Spec.typeId == univ.Choice.typeId and not asn1Spec.tagSet:
+            if asn1Spec.tagSet:
+                return asn1Spec.tagSet
+            else:
+                return asn1Spec.componentType.minTagSet
+        else:
+            return asn1Spec.tagSet
+
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+
+        substrate = null
+
+        comps = []
+        compsMap = {}
+
+        if asn1Spec is None:
+            # instance of ASN.1 schema
+            value.verifySizeSpec()
+
+            namedTypes = value.componentType
+
+            for idx, component in enumerate(value.values()):
+                if namedTypes:
+                    namedType = namedTypes[idx]
+
+                    if namedType.isOptional and not component.isValue:
+                            continue
+
+                    if namedType.isDefaulted and component == namedType.asn1Object:
+                            continue
+
+                    compsMap[id(component)] = namedType
+
+                else:
+                    compsMap[id(component)] = None
+
+                comps.append((component, asn1Spec))
+
+        else:
+            # bare Python value + ASN.1 schema
+            for idx, namedType in enumerate(asn1Spec.componentType.namedTypes):
+
+                try:
+                    component = value[namedType.name]
+
+                except KeyError:
+                    raise error.PyAsn1Error('Component name "%s" not found in %r' % (namedType.name, value))
+
+                if namedType.isOptional and namedType.name not in value:
+                    continue
+
+                if namedType.isDefaulted and component == namedType.asn1Object:
+                    continue
+
+                compsMap[id(component)] = namedType
+                comps.append((component, asn1Spec[idx]))
+
+        for comp, compType in sorted(comps, key=self._componentSortKey):
+            namedType = compsMap[id(comp)]
+
+            if namedType:
+                options.update(ifNotEmpty=namedType.isOptional)
+
+            chunk = encodeFun(comp, compType, **options)
+
+            # wrap open type blob if needed
+            if namedType and namedType.openType:
+                wrapType = namedType.asn1Object
+                if wrapType.tagSet and not wrapType.isSameTypeWith(comp):
+                    chunk = encodeFun(chunk, wrapType, **options)
+
+            substrate += chunk
+
+        return substrate, True, True
+
+
+class SetOfEncoder(encoder.SequenceOfEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+        if asn1Spec is None:
+            value.verifySizeSpec()
+        else:
+            asn1Spec = asn1Spec.componentType
+
+        components = [encodeFun(x, asn1Spec, **options)
+                      for x in value]
+
+        # sort by serialised and padded components
+        if len(components) > 1:
+            zero = str2octs('\x00')
+            maxLen = max(map(len, components))
+            paddedComponents = [
+                (x.ljust(maxLen, zero), x) for x in components
+                ]
+            paddedComponents.sort(key=lambda x: x[0])
+
+            components = [x[1] for x in paddedComponents]
+
+        substrate = null.join(components)
+
+        return substrate, True, True
+
+
+class SequenceEncoder(encoder.SequenceEncoder):
+    omitEmptyOptionals = True
+
+
+class SequenceOfEncoder(encoder.SequenceOfEncoder):
+    def encodeValue(self, value, asn1Spec, encodeFun, **options):
+
+        if options.get('ifNotEmpty', False) and not len(value):
+            return null, True, True
+
+        if asn1Spec is None:
+            value.verifySizeSpec()
+        else:
+            asn1Spec = asn1Spec.componentType
+
+        substrate = null
+
+        for idx, component in enumerate(value):
+            substrate += encodeFun(value[idx], asn1Spec, **options)
+
+        return substrate, True, True
+
+
+tagMap = encoder.tagMap.copy()
+tagMap.update({
+    univ.Boolean.tagSet: BooleanEncoder(),
+    univ.Real.tagSet: RealEncoder(),
+    useful.GeneralizedTime.tagSet: GeneralizedTimeEncoder(),
+    useful.UTCTime.tagSet: UTCTimeEncoder(),
+    # Sequence & Set have same tags as SequenceOf & SetOf
+    univ.SetOf.tagSet: SetOfEncoder(),
+    univ.Sequence.typeId: SequenceEncoder()
+})
+
+typeMap = encoder.typeMap.copy()
+typeMap.update({
+    univ.Boolean.typeId: BooleanEncoder(),
+    univ.Real.typeId: RealEncoder(),
+    useful.GeneralizedTime.typeId: GeneralizedTimeEncoder(),
+    useful.UTCTime.typeId: UTCTimeEncoder(),
+    # Sequence & Set have same tags as SequenceOf & SetOf
+    univ.Set.typeId: SetEncoder(),
+    univ.SetOf.typeId: SetOfEncoder(),
+    univ.Sequence.typeId: SequenceEncoder(),
+    univ.SequenceOf.typeId: SequenceOfEncoder()
+})
+
+
+class Encoder(encoder.Encoder):
+    fixedDefLengthMode = False
+    fixedChunkSize = 1000
+
+#: Turns ASN.1 object into CER octet stream.
+#:
+#: Takes any ASN.1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#: walks all its components recursively and produces a CER octet stream.
+#:
+#: Parameters
+#: ----------
+#: value: either a Python or pyasn1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     A Python or pyasn1 object to encode. If Python object is given, `asnSpec`
+#:     parameter is required to guide the encoding process.
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec:
+#:     Optional ASN.1 schema or value object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:
+#: Returns
+#: -------
+#: : :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     Given ASN.1 object encoded into BER octet-stream
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On encoding errors
+#:
+#: Examples
+#: --------
+#: Encode Python value into CER with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> encode([1, 2, 3], asn1Spec=seq)
+#:    b'0\x80\x02\x01\x01\x02\x01\x02\x02\x01\x03\x00\x00'
+#:
+#: Encode ASN.1 value object into CER
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> seq.extend([1, 2, 3])
+#:    >>> encode(seq)
+#:    b'0\x80\x02\x01\x01\x02\x01\x02\x02\x01\x03\x00\x00'
+#:
+encode = Encoder(tagMap, typeMap)
+
+# EncoderFactory queries class instance and builds a map of tags -> encoders
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/der/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/codec/der/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/der/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/der/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/der/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/der/decoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/der/decoder.py
new file mode 100644
index 0000000..7cc4ab5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/der/decoder.py
@@ -0,0 +1,94 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1.codec.cer import decoder
+from pyasn1.type import univ
+
+__all__ = ['decode']
+
+
+class BitStringDecoder(decoder.BitStringDecoder):
+    supportConstructedForm = False
+
+
+class OctetStringDecoder(decoder.OctetStringDecoder):
+    supportConstructedForm = False
+
+# TODO: prohibit non-canonical encoding
+RealDecoder = decoder.RealDecoder
+
+tagMap = decoder.tagMap.copy()
+tagMap.update(
+    {univ.BitString.tagSet: BitStringDecoder(),
+     univ.OctetString.tagSet: OctetStringDecoder(),
+     univ.Real.tagSet: RealDecoder()}
+)
+
+typeMap = decoder.typeMap.copy()
+
+# Put in non-ambiguous types for faster codec lookup
+for typeDecoder in tagMap.values():
+    if typeDecoder.protoComponent is not None:
+        typeId = typeDecoder.protoComponent.__class__.typeId
+        if typeId is not None and typeId not in typeMap:
+            typeMap[typeId] = typeDecoder
+
+
+class Decoder(decoder.Decoder):
+    supportIndefLength = False
+
+
+#: Turns DER octet stream into an ASN.1 object.
+#:
+#: Takes DER octet-stream and decode it into an ASN.1 object
+#: (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative) which
+#: may be a scalar or an arbitrary nested structure.
+#:
+#: Parameters
+#: ----------
+#: substrate: :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     DER octet-stream
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec: any pyasn1 type object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:     A pyasn1 type object to act as a template guiding the decoder. Depending on the ASN.1 structure
+#:     being decoded, *asn1Spec* may or may not be required. Most common reason for
+#:     it to require is that ASN.1 structure is encoded in *IMPLICIT* tagging mode.
+#:
+#: Returns
+#: -------
+#: : :py:class:`tuple`
+#:     A tuple of pyasn1 object recovered from DER substrate (:py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     and the unprocessed trailing portion of the *substrate* (may be empty)
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On decoding errors
+#:
+#: Examples
+#: --------
+#: Decode DER serialisation without ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> s, _ = decode(b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03')
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+#: Decode DER serialisation with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> s, _ = decode(b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03', asn1Spec=seq)
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+decode = Decoder(tagMap, typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/der/encoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/der/encoder.py
new file mode 100644
index 0000000..682860b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/der/encoder.py
@@ -0,0 +1,107 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import error
+from pyasn1.codec.cer import encoder
+from pyasn1.type import univ
+
+__all__ = ['encode']
+
+
+class SetEncoder(encoder.SetEncoder):
+    @staticmethod
+    def _componentSortKey(componentAndType):
+        """Sort SET components by tag
+
+        Sort depending on the actual Choice value (dynamic sort)
+        """
+        component, asn1Spec = componentAndType
+
+        if asn1Spec is None:
+            compType = component
+        else:
+            compType = asn1Spec
+
+        if compType.typeId == univ.Choice.typeId and not compType.tagSet:
+            if asn1Spec is None:
+                return component.getComponent().tagSet
+            else:
+                # TODO: move out of sorting key function
+                names = [namedType.name for namedType in asn1Spec.componentType.namedTypes
+                         if namedType.name in component]
+                if len(names) != 1:
+                    raise error.PyAsn1Error(
+                        '%s components for Choice at %r' % (len(names) and 'Multiple ' or 'None ', component))
+
+                # TODO: support nested CHOICE ordering
+                return asn1Spec[names[0]].tagSet
+
+        else:
+            return compType.tagSet
+
+tagMap = encoder.tagMap.copy()
+tagMap.update({
+    # Set & SetOf have same tags
+    univ.Set.tagSet: SetEncoder()
+})
+
+typeMap = encoder.typeMap.copy()
+typeMap.update({
+    # Set & SetOf have same tags
+    univ.Set.typeId: SetEncoder()
+})
+
+
+class Encoder(encoder.Encoder):
+    fixedDefLengthMode = True
+    fixedChunkSize = 0
+
+#: Turns ASN.1 object into DER octet stream.
+#:
+#: Takes any ASN.1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#: walks all its components recursively and produces a DER octet stream.
+#:
+#: Parameters
+#: ----------
+#: value: either a Python or pyasn1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     A Python or pyasn1 object to encode. If Python object is given, `asnSpec`
+#:     parameter is required to guide the encoding process.
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec:
+#:     Optional ASN.1 schema or value object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:
+#: Returns
+#: -------
+#: : :py:class:`bytes` (Python 3) or :py:class:`str` (Python 2)
+#:     Given ASN.1 object encoded into BER octet-stream
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On encoding errors
+#:
+#: Examples
+#: --------
+#: Encode Python value into DER with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> encode([1, 2, 3], asn1Spec=seq)
+#:    b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03'
+#:
+#: Encode ASN.1 value object into DER
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> seq.extend([1, 2, 3])
+#:    >>> encode(seq)
+#:    b'0\t\x02\x01\x01\x02\x01\x02\x02\x01\x03'
+#:
+encode = Encoder(tagMap, typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/native/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/codec/native/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/native/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/native/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pyasn1/codec/native/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/native/decoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/native/decoder.py
new file mode 100644
index 0000000..fe250fb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/native/decoder.py
@@ -0,0 +1,214 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import debug
+from pyasn1 import error
+from pyasn1.type import base
+from pyasn1.type import char
+from pyasn1.type import tag
+from pyasn1.type import univ
+from pyasn1.type import useful
+
+__all__ = ['decode']
+
+
+class AbstractScalarDecoder(object):
+    def __call__(self, pyObject, asn1Spec, decodeFun=None, **options):
+        return asn1Spec.clone(pyObject)
+
+
+class BitStringDecoder(AbstractScalarDecoder):
+    def __call__(self, pyObject, asn1Spec, decodeFun=None, **options):
+        return asn1Spec.clone(univ.BitString.fromBinaryString(pyObject))
+
+
+class SequenceOrSetDecoder(object):
+    def __call__(self, pyObject, asn1Spec, decodeFun=None, **options):
+        asn1Value = asn1Spec.clone()
+
+        componentsTypes = asn1Spec.componentType
+
+        for field in asn1Value:
+            if field in pyObject:
+                asn1Value[field] = decodeFun(pyObject[field], componentsTypes[field].asn1Object, **options)
+
+        return asn1Value
+
+
+class SequenceOfOrSetOfDecoder(object):
+    def __call__(self, pyObject, asn1Spec, decodeFun=None, **options):
+        asn1Value = asn1Spec.clone()
+
+        for pyValue in pyObject:
+            asn1Value.append(decodeFun(pyValue, asn1Spec.componentType), **options)
+
+        return asn1Value
+
+
+class ChoiceDecoder(object):
+    def __call__(self, pyObject, asn1Spec, decodeFun=None, **options):
+        asn1Value = asn1Spec.clone()
+
+        componentsTypes = asn1Spec.componentType
+
+        for field in pyObject:
+            if field in componentsTypes:
+                asn1Value[field] = decodeFun(pyObject[field], componentsTypes[field].asn1Object, **options)
+                break
+
+        return asn1Value
+
+
+tagMap = {
+    univ.Integer.tagSet: AbstractScalarDecoder(),
+    univ.Boolean.tagSet: AbstractScalarDecoder(),
+    univ.BitString.tagSet: BitStringDecoder(),
+    univ.OctetString.tagSet: AbstractScalarDecoder(),
+    univ.Null.tagSet: AbstractScalarDecoder(),
+    univ.ObjectIdentifier.tagSet: AbstractScalarDecoder(),
+    univ.Enumerated.tagSet: AbstractScalarDecoder(),
+    univ.Real.tagSet: AbstractScalarDecoder(),
+    univ.Sequence.tagSet: SequenceOrSetDecoder(),  # conflicts with SequenceOf
+    univ.Set.tagSet: SequenceOrSetDecoder(),  # conflicts with SetOf
+    univ.Choice.tagSet: ChoiceDecoder(),  # conflicts with Any
+    # character string types
+    char.UTF8String.tagSet: AbstractScalarDecoder(),
+    char.NumericString.tagSet: AbstractScalarDecoder(),
+    char.PrintableString.tagSet: AbstractScalarDecoder(),
+    char.TeletexString.tagSet: AbstractScalarDecoder(),
+    char.VideotexString.tagSet: AbstractScalarDecoder(),
+    char.IA5String.tagSet: AbstractScalarDecoder(),
+    char.GraphicString.tagSet: AbstractScalarDecoder(),
+    char.VisibleString.tagSet: AbstractScalarDecoder(),
+    char.GeneralString.tagSet: AbstractScalarDecoder(),
+    char.UniversalString.tagSet: AbstractScalarDecoder(),
+    char.BMPString.tagSet: AbstractScalarDecoder(),
+    # useful types
+    useful.ObjectDescriptor.tagSet: AbstractScalarDecoder(),
+    useful.GeneralizedTime.tagSet: AbstractScalarDecoder(),
+    useful.UTCTime.tagSet: AbstractScalarDecoder()
+}
+
+# Put in ambiguous & non-ambiguous types for faster codec lookup
+typeMap = {
+    univ.Integer.typeId: AbstractScalarDecoder(),
+    univ.Boolean.typeId: AbstractScalarDecoder(),
+    univ.BitString.typeId: BitStringDecoder(),
+    univ.OctetString.typeId: AbstractScalarDecoder(),
+    univ.Null.typeId: AbstractScalarDecoder(),
+    univ.ObjectIdentifier.typeId: AbstractScalarDecoder(),
+    univ.Enumerated.typeId: AbstractScalarDecoder(),
+    univ.Real.typeId: AbstractScalarDecoder(),
+    # ambiguous base types
+    univ.Set.typeId: SequenceOrSetDecoder(),
+    univ.SetOf.typeId: SequenceOfOrSetOfDecoder(),
+    univ.Sequence.typeId: SequenceOrSetDecoder(),
+    univ.SequenceOf.typeId: SequenceOfOrSetOfDecoder(),
+    univ.Choice.typeId: ChoiceDecoder(),
+    univ.Any.typeId: AbstractScalarDecoder(),
+    # character string types
+    char.UTF8String.typeId: AbstractScalarDecoder(),
+    char.NumericString.typeId: AbstractScalarDecoder(),
+    char.PrintableString.typeId: AbstractScalarDecoder(),
+    char.TeletexString.typeId: AbstractScalarDecoder(),
+    char.VideotexString.typeId: AbstractScalarDecoder(),
+    char.IA5String.typeId: AbstractScalarDecoder(),
+    char.GraphicString.typeId: AbstractScalarDecoder(),
+    char.VisibleString.typeId: AbstractScalarDecoder(),
+    char.GeneralString.typeId: AbstractScalarDecoder(),
+    char.UniversalString.typeId: AbstractScalarDecoder(),
+    char.BMPString.typeId: AbstractScalarDecoder(),
+    # useful types
+    useful.ObjectDescriptor.typeId: AbstractScalarDecoder(),
+    useful.GeneralizedTime.typeId: AbstractScalarDecoder(),
+    useful.UTCTime.typeId: AbstractScalarDecoder()
+}
+
+
+class Decoder(object):
+
+    # noinspection PyDefaultArgument
+    def __init__(self, tagMap, typeMap):
+        self.__tagMap = tagMap
+        self.__typeMap = typeMap
+
+    def __call__(self, pyObject, asn1Spec, **options):
+        if debug.logger & debug.flagDecoder:
+            logger = debug.logger
+        else:
+            logger = None
+        if logger:
+            debug.scope.push(type(pyObject).__name__)
+            logger('decoder called at scope %s, working with type %s' % (debug.scope, type(pyObject).__name__))
+
+        if asn1Spec is None or not isinstance(asn1Spec, base.Asn1Item):
+            raise error.PyAsn1Error('asn1Spec is not valid (should be an instance of an ASN.1 Item, not %s)' % asn1Spec.__class__.__name__)
+
+        try:
+            valueDecoder = self.__typeMap[asn1Spec.typeId]
+
+        except KeyError:
+            # use base type for codec lookup to recover untagged types
+            baseTagSet = tag.TagSet(asn1Spec.tagSet.baseTag, asn1Spec.tagSet.baseTag)
+
+            try:
+                valueDecoder = self.__tagMap[baseTagSet]
+            except KeyError:
+                raise error.PyAsn1Error('Unknown ASN.1 tag %s' % asn1Spec.tagSet)
+
+        if logger:
+            logger('calling decoder %s on Python type %s <%s>' % (type(valueDecoder).__name__, type(pyObject).__name__, repr(pyObject)))
+
+        value = valueDecoder(pyObject, asn1Spec, self, **options)
+
+        if logger:
+            logger('decoder %s produced ASN.1 type %s <%s>' % (type(valueDecoder).__name__, type(value).__name__, repr(value)))
+            debug.scope.pop()
+
+        return value
+
+
+#: Turns Python objects of built-in types into ASN.1 objects.
+#:
+#: Takes Python objects of built-in types and turns them into a tree of
+#: ASN.1 objects (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative) which
+#: may be a scalar or an arbitrary nested structure.
+#:
+#: Parameters
+#: ----------
+#: pyObject: :py:class:`object`
+#:     A scalar or nested Python objects
+#:
+#: Keyword Args
+#: ------------
+#: asn1Spec: any pyasn1 type object e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:     A pyasn1 type object to act as a template guiding the decoder. It is required
+#:     for successful interpretation of Python objects mapping into their ASN.1
+#:     representations.
+#:
+#: Returns
+#: -------
+#: : :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+#:     A scalar or constructed pyasn1 object
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On decoding errors
+#:
+#: Examples
+#: --------
+#: Decode native Python object into ASN.1 objects with ASN.1 schema
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> s, _ = decode([1, 2, 3], asn1Spec=seq)
+#:    >>> str(s)
+#:    SequenceOf:
+#:     1 2 3
+#:
+decode = Decoder(tagMap, typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/codec/native/encoder.py b/venv/lib/python3.5/site-packages/pyasn1/codec/native/encoder.py
new file mode 100644
index 0000000..9f20fe1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/codec/native/encoder.py
@@ -0,0 +1,229 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+try:
+    from collections import OrderedDict
+
+except ImportError:
+    OrderedDict = dict
+
+from pyasn1 import debug
+from pyasn1 import error
+from pyasn1.type import base
+from pyasn1.type import char
+from pyasn1.type import tag
+from pyasn1.type import univ
+from pyasn1.type import useful
+
+__all__ = ['encode']
+
+
+class AbstractItemEncoder(object):
+    def encode(self, value, encodeFun, **options):
+        raise error.PyAsn1Error('Not implemented')
+
+
+class BooleanEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return bool(value)
+
+
+class IntegerEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return int(value)
+
+
+class BitStringEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return str(value)
+
+
+class OctetStringEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return value.asOctets()
+
+
+class TextStringEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return str(value)
+
+
+class NullEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return None
+
+
+class ObjectIdentifierEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return str(value)
+
+
+class RealEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return float(value)
+
+
+class SetEncoder(AbstractItemEncoder):
+    protoDict = dict
+
+    def encode(self, value, encodeFun, **options):
+        value.verifySizeSpec()
+
+        namedTypes = value.componentType
+        substrate = self.protoDict()
+
+        for idx, (key, subValue) in enumerate(value.items()):
+            if namedTypes and namedTypes[idx].isOptional and not value[idx].isValue:
+                continue
+            substrate[key] = encodeFun(subValue, **options)
+        return substrate
+
+
+class SequenceEncoder(SetEncoder):
+    protoDict = OrderedDict
+
+
+class SequenceOfEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        value.verifySizeSpec()
+        return [encodeFun(x, **options) for x in value]
+
+
+class ChoiceEncoder(SequenceEncoder):
+    pass
+
+
+class AnyEncoder(AbstractItemEncoder):
+    def encode(self, value, encodeFun, **options):
+        return value.asOctets()
+
+
+tagMap = {
+    univ.Boolean.tagSet: BooleanEncoder(),
+    univ.Integer.tagSet: IntegerEncoder(),
+    univ.BitString.tagSet: BitStringEncoder(),
+    univ.OctetString.tagSet: OctetStringEncoder(),
+    univ.Null.tagSet: NullEncoder(),
+    univ.ObjectIdentifier.tagSet: ObjectIdentifierEncoder(),
+    univ.Enumerated.tagSet: IntegerEncoder(),
+    univ.Real.tagSet: RealEncoder(),
+    # Sequence & Set have same tags as SequenceOf & SetOf
+    univ.SequenceOf.tagSet: SequenceOfEncoder(),
+    univ.SetOf.tagSet: SequenceOfEncoder(),
+    univ.Choice.tagSet: ChoiceEncoder(),
+    # character string types
+    char.UTF8String.tagSet: TextStringEncoder(),
+    char.NumericString.tagSet: TextStringEncoder(),
+    char.PrintableString.tagSet: TextStringEncoder(),
+    char.TeletexString.tagSet: TextStringEncoder(),
+    char.VideotexString.tagSet: TextStringEncoder(),
+    char.IA5String.tagSet: TextStringEncoder(),
+    char.GraphicString.tagSet: TextStringEncoder(),
+    char.VisibleString.tagSet: TextStringEncoder(),
+    char.GeneralString.tagSet: TextStringEncoder(),
+    char.UniversalString.tagSet: TextStringEncoder(),
+    char.BMPString.tagSet: TextStringEncoder(),
+    # useful types
+    useful.ObjectDescriptor.tagSet: OctetStringEncoder(),
+    useful.GeneralizedTime.tagSet: OctetStringEncoder(),
+    useful.UTCTime.tagSet: OctetStringEncoder()
+}
+
+# Type-to-codec map for ambiguous ASN.1 types
+typeMap = {
+    univ.Set.typeId: SetEncoder(),
+    univ.SetOf.typeId: SequenceOfEncoder(),
+    univ.Sequence.typeId: SequenceEncoder(),
+    univ.SequenceOf.typeId: SequenceOfEncoder(),
+    univ.Choice.typeId: ChoiceEncoder(),
+    univ.Any.typeId: AnyEncoder()
+}
+
+
+class Encoder(object):
+
+    # noinspection PyDefaultArgument
+    def __init__(self, tagMap, typeMap={}):
+        self.__tagMap = tagMap
+        self.__typeMap = typeMap
+
+    def __call__(self, value, **options):
+        if not isinstance(value, base.Asn1Item):
+            raise error.PyAsn1Error('value is not valid (should be an instance of an ASN.1 Item)')
+
+        if debug.logger & debug.flagEncoder:
+            logger = debug.logger
+        else:
+            logger = None
+
+        if logger:
+            debug.scope.push(type(value).__name__)
+            logger('encoder called for type %s <%s>' % (type(value).__name__, value.prettyPrint()))
+
+        tagSet = value.tagSet
+
+        try:
+            concreteEncoder = self.__typeMap[value.typeId]
+
+        except KeyError:
+            # use base type for codec lookup to recover untagged types
+            baseTagSet = tag.TagSet(value.tagSet.baseTag, value.tagSet.baseTag)
+
+            try:
+                concreteEncoder = self.__tagMap[baseTagSet]
+
+            except KeyError:
+                raise error.PyAsn1Error('No encoder for %s' % (value,))
+
+        if logger:
+            logger('using value codec %s chosen by %s' % (concreteEncoder.__class__.__name__, tagSet))
+
+        pyObject = concreteEncoder.encode(value, self, **options)
+
+        if logger:
+            logger('encoder %s produced: %s' % (type(concreteEncoder).__name__, repr(pyObject)))
+            debug.scope.pop()
+
+        return pyObject
+
+
+#: Turns ASN.1 object into a Python built-in type object(s).
+#:
+#: Takes any ASN.1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#: walks all its components recursively and produces a Python built-in type or a tree
+#: of those.
+#:
+#: One exception is that instead of :py:class:`dict`, the :py:class:`OrderedDict`
+#: can be produced (whenever available) to preserve ordering of the components
+#: in ASN.1 SEQUENCE.
+#:
+#: Parameters
+#: ----------
+#  asn1Value: any pyasn1 object (e.g. :py:class:`~pyasn1.type.base.PyAsn1Item` derivative)
+#:     pyasn1 object to encode (or a tree of them)
+#:
+#: Returns
+#: -------
+#: : :py:class:`object`
+#:     Python built-in type instance (or a tree of them)
+#:
+#: Raises
+#: ------
+#: :py:class:`~pyasn1.error.PyAsn1Error`
+#:     On encoding errors
+#:
+#: Examples
+#: --------
+#: Encode ASN.1 value object into native Python types
+#:
+#: .. code-block:: pycon
+#:
+#:    >>> seq = SequenceOf(componentType=Integer())
+#:    >>> seq.extend([1, 2, 3])
+#:    >>> encode(seq)
+#:    [1, 2, 3]
+#:
+encode = Encoder(tagMap, typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/compat/__init__.py
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index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/binary.py b/venv/lib/python3.5/site-packages/pyasn1/compat/binary.py
new file mode 100644
index 0000000..43d1b99
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/binary.py
@@ -0,0 +1,33 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from sys import version_info
+
+if version_info[0:2] < (2, 6):
+    def bin(value):
+        bitstring = []
+
+        if value > 0:
+            prefix = '0b'
+        elif value < 0:
+            prefix = '-0b'
+            value = abs(value)
+        else:
+            prefix = '0b0'
+
+        while value:
+            if value & 1 == 1:
+                bitstring.append('1')
+            else:
+                bitstring.append('0')
+
+            value >>= 1
+
+        bitstring.reverse()
+
+        return prefix + ''.join(bitstring)
+else:
+    bin = bin
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/calling.py b/venv/lib/python3.5/site-packages/pyasn1/compat/calling.py
new file mode 100644
index 0000000..1fe307b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/calling.py
@@ -0,0 +1,20 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from sys import version_info
+
+__all__ = ['callable']
+
+
+if (2, 7) < version_info[:2] < (3, 2):
+    import collections
+
+    def callable(x):
+        return isinstance(x, collections.Callable)
+
+else:
+
+    callable = callable
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/dateandtime.py b/venv/lib/python3.5/site-packages/pyasn1/compat/dateandtime.py
new file mode 100644
index 0000000..abb8754
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/dateandtime.py
@@ -0,0 +1,22 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import time
+from datetime import datetime
+from sys import version_info
+
+__all__ = ['strptime']
+
+
+if version_info[:2] <= (2, 4):
+
+    def strptime(text, dateFormat):
+        return datetime(*(time.strptime(text, dateFormat)[0:6]))
+
+else:
+
+    def strptime(text, dateFormat):
+        return datetime.strptime(text, dateFormat)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/integer.py b/venv/lib/python3.5/site-packages/pyasn1/compat/integer.py
new file mode 100644
index 0000000..b109340
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/integer.py
@@ -0,0 +1,110 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import sys
+
+try:
+    import platform
+
+    implementation = platform.python_implementation()
+
+except (ImportError, AttributeError):
+    implementation = 'CPython'
+
+from pyasn1.compat.octets import oct2int, null, ensureString
+
+if sys.version_info[0:2] < (3, 2) or implementation != 'CPython':
+    from binascii import a2b_hex, b2a_hex
+
+    if sys.version_info[0] > 2:
+        long = int
+
+    def from_bytes(octets, signed=False):
+        if not octets:
+            return 0
+
+        value = long(b2a_hex(ensureString(octets)), 16)
+
+        if signed and oct2int(octets[0]) & 0x80:
+            return value - (1 << len(octets) * 8)
+
+        return value
+
+    def to_bytes(value, signed=False, length=0):
+        if value < 0:
+            if signed:
+                bits = bitLength(value)
+
+                # two's complement form
+                maxValue = 1 << bits
+                valueToEncode = (value + maxValue) % maxValue
+
+            else:
+                raise OverflowError('can\'t convert negative int to unsigned')
+        elif value == 0 and length == 0:
+            return null
+        else:
+            bits = 0
+            valueToEncode = value
+
+        hexValue = hex(valueToEncode)[2:]
+        if hexValue.endswith('L'):
+            hexValue = hexValue[:-1]
+
+        if len(hexValue) & 1:
+            hexValue = '0' + hexValue
+
+        # padding may be needed for two's complement encoding
+        if value != valueToEncode or length:
+            hexLength = len(hexValue) * 4
+
+            padLength = max(length, bits)
+
+            if padLength > hexLength:
+                hexValue = '00' * ((padLength - hexLength - 1) // 8 + 1) + hexValue
+            elif length and hexLength - length > 7:
+                raise OverflowError('int too big to convert')
+
+        firstOctet = int(hexValue[:2], 16)
+
+        if signed:
+            if firstOctet & 0x80:
+                if value >= 0:
+                    hexValue = '00' + hexValue
+            elif value < 0:
+                hexValue = 'ff' + hexValue
+
+        octets_value = a2b_hex(hexValue)
+
+        return octets_value
+
+    def bitLength(number):
+        # bits in unsigned number
+        hexValue = hex(abs(number))
+        bits = len(hexValue) - 2
+        if hexValue.endswith('L'):
+            bits -= 1
+        if bits & 1:
+            bits += 1
+        bits *= 4
+        # TODO: strip lhs zeros
+        return bits
+
+else:
+
+    def from_bytes(octets, signed=False):
+        return int.from_bytes(bytes(octets), 'big', signed=signed)
+
+    def to_bytes(value, signed=False, length=0):
+        length = max(value.bit_length(), length)
+
+        if signed and length % 8 == 0:
+            length += 1
+
+        return value.to_bytes(length // 8 + (length % 8 and 1 or 0), 'big', signed=signed)
+
+    def bitLength(number):
+        return int(number).bit_length()
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/octets.py b/venv/lib/python3.5/site-packages/pyasn1/compat/octets.py
new file mode 100644
index 0000000..23c285d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/octets.py
@@ -0,0 +1,46 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from sys import version_info
+
+if version_info[0] <= 2:
+    int2oct = chr
+    # noinspection PyPep8
+    ints2octs = lambda s: ''.join([int2oct(x) for x in s])
+    null = ''
+    oct2int = ord
+    # TODO: refactor to return a sequence of ints
+    # noinspection PyPep8
+    octs2ints = lambda s: [oct2int(x) for x in s]
+    # noinspection PyPep8
+    str2octs = lambda x: x
+    # noinspection PyPep8
+    octs2str = lambda x: x
+    # noinspection PyPep8
+    isOctetsType = lambda s: isinstance(s, str)
+    # noinspection PyPep8
+    isStringType = lambda s: isinstance(s, (str, unicode))
+    # noinspection PyPep8
+    ensureString = str
+else:
+    ints2octs = bytes
+    # noinspection PyPep8
+    int2oct = lambda x: ints2octs((x,))
+    null = ints2octs()
+    # noinspection PyPep8
+    oct2int = lambda x: x
+    # noinspection PyPep8
+    octs2ints = lambda x: x
+    # noinspection PyPep8
+    str2octs = lambda x: x.encode('iso-8859-1')
+    # noinspection PyPep8
+    octs2str = lambda x: x.decode('iso-8859-1')
+    # noinspection PyPep8
+    isOctetsType = lambda s: isinstance(s, bytes)
+    # noinspection PyPep8
+    isStringType = lambda s: isinstance(s, str)
+    # noinspection PyPep8
+    ensureString = bytes
diff --git a/venv/lib/python3.5/site-packages/pyasn1/compat/string.py b/venv/lib/python3.5/site-packages/pyasn1/compat/string.py
new file mode 100644
index 0000000..7b28519
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/compat/string.py
@@ -0,0 +1,26 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from sys import version_info
+
+if version_info[:2] <= (2, 5):
+
+    def partition(string, sep):
+        try:
+            a, c = string.split(sep, 1)
+
+        except ValueError:
+            a, b, c = string, '', ''
+
+        else:
+            b = sep
+
+        return a, b, c
+
+else:
+
+    def partition(string, sep):
+        return string.partition(sep)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/debug.py b/venv/lib/python3.5/site-packages/pyasn1/debug.py
new file mode 100644
index 0000000..fcf1ae2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/debug.py
@@ -0,0 +1,145 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import logging
+
+from pyasn1 import __version__
+from pyasn1 import error
+from pyasn1.compat.octets import octs2ints
+
+__all__ = ['Debug', 'setLogger', 'hexdump']
+
+flagNone = 0x0000
+flagEncoder = 0x0001
+flagDecoder = 0x0002
+flagAll = 0xffff
+
+flagMap = {
+    'none': flagNone,
+    'encoder': flagEncoder,
+    'decoder': flagDecoder,
+    'all': flagAll
+}
+
+
+class Printer(object):
+    # noinspection PyShadowingNames
+    def __init__(self, logger=None, handler=None, formatter=None):
+        if logger is None:
+            logger = logging.getLogger('pyasn1')
+
+        logger.setLevel(logging.DEBUG)
+
+        if handler is None:
+            handler = logging.StreamHandler()
+
+        if formatter is None:
+            formatter = logging.Formatter('%(asctime)s %(name)s: %(message)s')
+
+        handler.setFormatter(formatter)
+        handler.setLevel(logging.DEBUG)
+        logger.addHandler(handler)
+
+        self.__logger = logger
+
+    def __call__(self, msg):
+        self.__logger.debug(msg)
+
+    def __str__(self):
+        return '<python logging>'
+
+
+if hasattr(logging, 'NullHandler'):
+    NullHandler = logging.NullHandler
+
+else:
+    # Python 2.6 and older
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+
+class Debug(object):
+    defaultPrinter = Printer()
+
+    def __init__(self, *flags, **options):
+        self._flags = flagNone
+
+        if 'loggerName' in options:
+            # route our logs to parent logger
+            self._printer = Printer(
+                logger=logging.getLogger(options['loggerName']),
+                handler=NullHandler()
+            )
+
+        elif 'printer' in options:
+            self._printer = options.get('printer')
+
+        else:
+            self._printer = self.defaultPrinter
+
+        self._printer('running pyasn1 %s, debug flags %s' % (__version__, ', '.join(flags)))
+
+        for flag in flags:
+            inverse = flag and flag[0] in ('!', '~')
+            if inverse:
+                flag = flag[1:]
+            try:
+                if inverse:
+                    self._flags &= ~flagMap[flag]
+                else:
+                    self._flags |= flagMap[flag]
+            except KeyError:
+                raise error.PyAsn1Error('bad debug flag %s' % flag)
+
+            self._printer("debug category '%s' %s" % (flag, inverse and 'disabled' or 'enabled'))
+
+    def __str__(self):
+        return 'logger %s, flags %x' % (self._printer, self._flags)
+
+    def __call__(self, msg):
+        self._printer(msg)
+
+    def __and__(self, flag):
+        return self._flags & flag
+
+    def __rand__(self, flag):
+        return flag & self._flags
+
+
+logger = 0
+
+
+def setLogger(userLogger):
+    global logger
+
+    if userLogger:
+        logger = userLogger
+    else:
+        logger = 0
+
+
+def hexdump(octets):
+    return ' '.join(
+        ['%s%.2X' % (n % 16 == 0 and ('\n%.5d: ' % n) or '', x)
+         for n, x in zip(range(len(octets)), octs2ints(octets))]
+    )
+
+
+class Scope(object):
+    def __init__(self):
+        self._list = []
+
+    def __str__(self): return '.'.join(self._list)
+
+    def push(self, token):
+        self._list.append(token)
+
+    def pop(self):
+        return self._list.pop()
+
+
+scope = Scope()
diff --git a/venv/lib/python3.5/site-packages/pyasn1/error.py b/venv/lib/python3.5/site-packages/pyasn1/error.py
new file mode 100644
index 0000000..2cbbbc9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/error.py
@@ -0,0 +1,29 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+
+
+class PyAsn1Error(Exception):
+    """Create pyasn1 exception object
+
+    The `PyAsn1Error` exception represents generic, usually fatal, error.
+    """
+
+
+class ValueConstraintError(PyAsn1Error):
+    """Create pyasn1 exception object
+
+    The `ValueConstraintError` exception indicates an ASN.1 value
+    constraint violation.
+    """
+
+
+class SubstrateUnderrunError(PyAsn1Error):
+    """Create pyasn1 exception object
+
+    The `SubstrateUnderrunError` exception indicates insufficient serialised
+    data on input of a deserialisation routine.
+    """
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/__init__.py b/venv/lib/python3.5/site-packages/pyasn1/type/__init__.py
new file mode 100644
index 0000000..8c3066b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/__init__.py
@@ -0,0 +1 @@
+# This file is necessary to make this directory a package.
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diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/base.py b/venv/lib/python3.5/site-packages/pyasn1/type/base.py
new file mode 100644
index 0000000..9f52285
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/base.py
@@ -0,0 +1,643 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import sys
+
+from pyasn1 import error
+from pyasn1.compat import calling
+from pyasn1.type import constraint
+from pyasn1.type import tag
+from pyasn1.type import tagmap
+
+__all__ = ['Asn1Item', 'Asn1ItemBase', 'AbstractSimpleAsn1Item', 'AbstractConstructedAsn1Item']
+
+
+class Asn1Item(object):
+    @classmethod
+    def getTypeId(cls, increment=1):
+        try:
+            Asn1Item._typeCounter += increment
+        except AttributeError:
+            Asn1Item._typeCounter = increment
+        return Asn1Item._typeCounter
+
+
+class Asn1ItemBase(Asn1Item):
+    #: Set or return a :py:class:`~pyasn1.type.tag.TagSet` object representing
+    #: ASN.1 tag(s) associated with |ASN.1| type.
+    tagSet = tag.TagSet()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing constraints on initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Disambiguation ASN.1 types identification
+    typeId = None
+
+    def __init__(self, **kwargs):
+        readOnly = {
+            'tagSet': self.tagSet,
+            'subtypeSpec': self.subtypeSpec
+        }
+
+        readOnly.update(kwargs)
+
+        self.__dict__.update(readOnly)
+
+        self._readOnly = readOnly
+
+    def __setattr__(self, name, value):
+        if name[0] != '_' and name in self._readOnly:
+            raise error.PyAsn1Error('read-only instance attribute "%s"' % name)
+
+        self.__dict__[name] = value
+
+    def __str__(self):
+        return self.prettyPrint()
+
+    @property
+    def readOnly(self):
+        return self._readOnly
+
+    @property
+    def effectiveTagSet(self):
+        """For |ASN.1| type is equivalent to *tagSet*
+        """
+        return self.tagSet  # used by untagged types
+
+    @property
+    def tagMap(self):
+        """Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping ASN.1 tags to ASN.1 objects within callee object.
+        """
+        return tagmap.TagMap({self.tagSet: self})
+
+    def isSameTypeWith(self, other, matchTags=True, matchConstraints=True):
+        """Examine |ASN.1| type for equality with other ASN.1 type.
+
+        ASN.1 tags (:py:mod:`~pyasn1.type.tag`) and constraints
+        (:py:mod:`~pyasn1.type.constraint`) are examined when carrying
+        out ASN.1 types comparison.
+
+        Python class inheritance relationship is NOT considered.
+
+        Parameters
+        ----------
+        other: a pyasn1 type object
+            Class instance representing ASN.1 type.
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`True` if *other* is |ASN.1| type,
+            :class:`False` otherwise.
+        """
+        return (self is other or
+                (not matchTags or self.tagSet == other.tagSet) and
+                (not matchConstraints or self.subtypeSpec == other.subtypeSpec))
+
+    def isSuperTypeOf(self, other, matchTags=True, matchConstraints=True):
+        """Examine |ASN.1| type for subtype relationship with other ASN.1 type.
+
+        ASN.1 tags (:py:mod:`~pyasn1.type.tag`) and constraints
+        (:py:mod:`~pyasn1.type.constraint`) are examined when carrying
+        out ASN.1 types comparison.
+
+        Python class inheritance relationship is NOT considered.
+
+        Parameters
+        ----------
+            other: a pyasn1 type object
+                Class instance representing ASN.1 type.
+
+        Returns
+        -------
+            : :class:`bool`
+                :class:`True` if *other* is a subtype of |ASN.1| type,
+                :class:`False` otherwise.
+        """
+        return (not matchTags or
+                (self.tagSet.isSuperTagSetOf(other.tagSet)) and
+                 (not matchConstraints or self.subtypeSpec.isSuperTypeOf(other.subtypeSpec)))
+
+    @staticmethod
+    def isNoValue(*values):
+        for value in values:
+            if value is not noValue:
+                return False
+        return True
+
+    def prettyPrint(self, scope=0):
+        raise NotImplementedError()
+
+    # backward compatibility
+
+    def getTagSet(self):
+        return self.tagSet
+
+    def getEffectiveTagSet(self):
+        return self.effectiveTagSet
+
+    def getTagMap(self):
+        return self.tagMap
+
+    def getSubtypeSpec(self):
+        return self.subtypeSpec
+
+    def hasValue(self):
+        return self.isValue
+
+
+class NoValue(object):
+    """Create a singleton instance of NoValue class.
+
+    The *NoValue* sentinel object represents an instance of ASN.1 schema
+    object as opposed to ASN.1 value object.
+
+    Only ASN.1 schema-related operations can be performed on ASN.1
+    schema objects.
+
+    Warning
+    -------
+    Any operation attempted on the *noValue* object will raise the
+    *PyAsn1Error* exception.
+    """
+    skipMethods = set(
+        ('__slots__',
+         # attributes
+         '__getattribute__',
+         '__getattr__',
+         '__setattr__',
+         '__delattr__',
+         # class instance
+         '__class__',
+         '__init__',
+         '__del__',
+         '__new__',
+         '__repr__',
+         '__qualname__',
+         '__objclass__',
+         'im_class',
+         '__sizeof__',
+         # pickle protocol
+         '__reduce__',
+         '__reduce_ex__',
+         '__getnewargs__',
+         '__getinitargs__',
+         '__getstate__',
+         '__setstate__')
+    )
+
+    _instance = None
+
+    def __new__(cls):
+        if cls._instance is None:
+            def getPlug(name):
+                def plug(self, *args, **kw):
+                    raise error.PyAsn1Error('Attempted "%s" operation on ASN.1 schema object' % name)
+                return plug
+
+            op_names = [name
+                        for typ in (str, int, list, dict)
+                        for name in dir(typ)
+                        if (name not in cls.skipMethods and
+                            name.startswith('__') and
+                            name.endswith('__') and
+                            calling.callable(getattr(typ, name)))]
+
+            for name in set(op_names):
+                setattr(cls, name, getPlug(name))
+
+            cls._instance = object.__new__(cls)
+
+        return cls._instance
+
+    def __getattr__(self, attr):
+        if attr in self.skipMethods:
+            raise AttributeError('Attribute %s not present' % attr)
+
+        raise error.PyAsn1Error('Attempted "%s" operation on ASN.1 schema object' % attr)
+
+    def __repr__(self):
+        return '<%s object at %s>' % (self.__class__.__name__, id(self))
+
+
+noValue = NoValue()
+
+
+# Base class for "simple" ASN.1 objects. These are immutable.
+class AbstractSimpleAsn1Item(Asn1ItemBase):
+    #: Default payload value
+    defaultValue = noValue
+
+    def __init__(self, value=noValue, **kwargs):
+        Asn1ItemBase.__init__(self, **kwargs)
+        if value is noValue:
+            value = self.defaultValue
+        else:
+            value = self.prettyIn(value)
+            try:
+                self.subtypeSpec(value)
+
+            except error.PyAsn1Error:
+                exType, exValue, exTb = sys.exc_info()
+                raise exType('%s at %s' % (exValue, self.__class__.__name__))
+
+        self._value = value
+
+    def __repr__(self):
+        representation = '%s %s object at 0x%x' % (
+            self.__class__.__name__, self.isValue and 'value' or 'schema', id(self)
+        )
+
+        for attr, value in self.readOnly.items():
+            if value:
+                representation += ' %s %s' % (attr, value)
+
+        if self.isValue:
+            value = self.prettyPrint()
+            if len(value) > 32:
+                value = value[:16] + '...' + value[-16:]
+            representation += ' payload [%s]' % value
+
+        return '<%s>' % representation
+
+    def __eq__(self, other):
+        return self is other and True or self._value == other
+
+    def __ne__(self, other):
+        return self._value != other
+
+    def __lt__(self, other):
+        return self._value < other
+
+    def __le__(self, other):
+        return self._value <= other
+
+    def __gt__(self, other):
+        return self._value > other
+
+    def __ge__(self, other):
+        return self._value >= other
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return self._value and True or False
+    else:
+        def __bool__(self):
+            return self._value and True or False
+
+    def __hash__(self):
+        return hash(self._value)
+
+    @property
+    def isValue(self):
+        """Indicate that |ASN.1| object represents ASN.1 value.
+
+        If *isValue* is `False` then this object represents just ASN.1 schema.
+
+        If *isValue* is `True` then, in addition to its ASN.1 schema features,
+        this object can also be used like a Python built-in object (e.g. `int`,
+        `str`, `dict` etc.).
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`False` if object represents just ASN.1 schema.
+            :class:`True` if object represents ASN.1 schema and can be used as a normal value.
+
+        Note
+        ----
+        There is an important distinction between PyASN1 schema and value objects.
+        The PyASN1 schema objects can only participate in ASN.1 schema-related
+        operations (e.g. defining or testing the structure of the data). Most
+        obvious uses of ASN.1 schema is to guide serialisation codecs whilst
+        encoding/decoding serialised ASN.1 contents.
+
+        The PyASN1 value objects can **additionally** participate in many operations
+        involving regular Python objects (e.g. arithmetic, comprehension etc).
+        """
+        return self._value is not noValue
+
+    def clone(self, value=noValue, **kwargs):
+        """Create a modified version of |ASN.1| schema or value object.
+
+        The `clone()` method accepts the same set arguments as |ASN.1|
+        class takes on instantiation except that all arguments
+        of the `clone()` method are optional.
+
+        Whatever arguments are supplied, they are used to create a copy
+        of `self` taking precedence over the ones used to instantiate `self`.
+
+        Note
+        ----
+        Due to the immutable nature of the |ASN.1| object, if no arguments
+        are supplied, no new |ASN.1| object will be created and `self` will
+        be returned instead.
+        """
+        if value is noValue:
+            if not kwargs:
+                return self
+
+            value = self._value
+
+        initilaizers = self.readOnly.copy()
+        initilaizers.update(kwargs)
+
+        return self.__class__(value, **initilaizers)
+
+    def subtype(self, value=noValue, **kwargs):
+        """Create a specialization of |ASN.1| schema or value object.
+
+        The subtype relationship between ASN.1 types has no correlation with
+        subtype relationship between Python types. ASN.1 type is mainly identified
+        by its tag(s) (:py:class:`~pyasn1.type.tag.TagSet`) and value range
+        constraints (:py:class:`~pyasn1.type.constraint.ConstraintsIntersection`).
+        These ASN.1 type properties are implemented as |ASN.1| attributes.  
+
+        The `subtype()` method accepts the same set arguments as |ASN.1|
+        class takes on instantiation except that all parameters
+        of the `subtype()` method are optional.
+
+        With the exception of the arguments described below, the rest of
+        supplied arguments they are used to create a copy of `self` taking
+        precedence over the ones used to instantiate `self`.
+
+        The following arguments to `subtype()` create a ASN.1 subtype out of
+        |ASN.1| type:
+
+        Other Parameters
+        ----------------
+        implicitTag: :py:class:`~pyasn1.type.tag.Tag`
+            Implicitly apply given ASN.1 tag object to `self`'s
+            :py:class:`~pyasn1.type.tag.TagSet`, then use the result as
+            new object's ASN.1 tag(s).
+
+        explicitTag: :py:class:`~pyasn1.type.tag.Tag`
+            Explicitly apply given ASN.1 tag object to `self`'s
+            :py:class:`~pyasn1.type.tag.TagSet`, then use the result as
+            new object's ASN.1 tag(s).
+
+        subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+            Add ASN.1 constraints object to one of the `self`'s, then
+            use the result as new object's ASN.1 constraints.
+
+        Returns
+        -------
+        :
+            new instance of |ASN.1| schema or value object
+
+        Note
+        ----
+        Due to the immutable nature of the |ASN.1| object, if no arguments
+        are supplied, no new |ASN.1| object will be created and `self` will
+        be returned instead.
+        """
+        if value is noValue:
+            if not kwargs:
+                return self
+
+            value = self._value
+
+        initializers = self.readOnly.copy()
+
+        implicitTag = kwargs.pop('implicitTag', None)
+        if implicitTag is not None:
+            initializers['tagSet'] = self.tagSet.tagImplicitly(implicitTag)
+
+        explicitTag = kwargs.pop('explicitTag', None)
+        if explicitTag is not None:
+            initializers['tagSet'] = self.tagSet.tagExplicitly(explicitTag)
+
+        for arg, option in kwargs.items():
+            initializers[arg] += option
+
+        return self.__class__(value, **initializers)
+
+    def prettyIn(self, value):
+        return value
+
+    def prettyOut(self, value):
+        return str(value)
+
+    def prettyPrint(self, scope=0):
+        return self.prettyOut(self._value)
+
+    # noinspection PyUnusedLocal
+    def prettyPrintType(self, scope=0):
+        return '%s -> %s' % (self.tagSet, self.__class__.__name__)
+
+#
+# Constructed types:
+# * There are five of them: Sequence, SequenceOf/SetOf, Set and Choice
+# * ASN1 types and values are represened by Python class instances
+# * Value initialization is made for defaulted components only
+# * Primary method of component addressing is by-position. Data model for base
+#   type is Python sequence. Additional type-specific addressing methods
+#   may be implemented for particular types.
+# * SequenceOf and SetOf types do not implement any additional methods
+# * Sequence, Set and Choice types also implement by-identifier addressing
+# * Sequence, Set and Choice types also implement by-asn1-type (tag) addressing
+# * Sequence and Set types may include optional and defaulted
+#   components
+# * Constructed types hold a reference to component types used for value
+#   verification and ordering.
+# * Component type is a scalar type for SequenceOf/SetOf types and a list
+#   of types for Sequence/Set/Choice.
+#
+
+
+class AbstractConstructedAsn1Item(Asn1ItemBase):
+
+    #: If `True`, requires exact component type matching,
+    #: otherwise subtype relation is only enforced
+    strictConstraints = False
+
+    componentType = None
+    sizeSpec = None
+
+    def __init__(self, **kwargs):
+        readOnly = {
+            'componentType': self.componentType,
+            'sizeSpec': self.sizeSpec
+        }
+        readOnly.update(kwargs)
+
+        Asn1ItemBase.__init__(self, **readOnly)
+
+        self._componentValues = []
+
+    def __repr__(self):
+        representation = '%s %s object at 0x%x' % (
+            self.__class__.__name__, self.isValue and 'value' or 'schema', id(self)
+        )
+
+        for attr, value in self.readOnly.items():
+            if value is not noValue:
+                representation += ' %s=%r' % (attr, value)
+
+        if self.isValue and self._componentValues:
+            representation += ' payload [%s]' % ', '.join([repr(x) for x in self._componentValues])
+
+        return '<%s>' % representation
+
+    def __eq__(self, other):
+        return self is other and True or self._componentValues == other
+
+    def __ne__(self, other):
+        return self._componentValues != other
+
+    def __lt__(self, other):
+        return self._componentValues < other
+
+    def __le__(self, other):
+        return self._componentValues <= other
+
+    def __gt__(self, other):
+        return self._componentValues > other
+
+    def __ge__(self, other):
+        return self._componentValues >= other
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return self._componentValues and True or False
+    else:
+        def __bool__(self):
+            return self._componentValues and True or False
+
+    def __len__(self):
+        return len(self._componentValues)
+
+    def _cloneComponentValues(self, myClone, cloneValueFlag):
+        pass
+
+    def clone(self, **kwargs):
+        """Create a modified version of |ASN.1| schema object.
+
+        The `clone()` method accepts the same set arguments as |ASN.1|
+        class takes on instantiation except that all arguments
+        of the `clone()` method are optional.
+
+        Whatever arguments are supplied, they are used to create a copy
+        of `self` taking precedence over the ones used to instantiate `self`.
+
+        Possible values of `self` are never copied over thus `clone()` can
+        only create a new schema object.
+
+        Returns
+        -------
+        :
+            new instance of |ASN.1| type/value
+
+        Note
+        ----
+        Due to the mutable nature of the |ASN.1| object, even if no arguments
+        are supplied, new |ASN.1| object will always be created as a shallow
+        copy of `self`.
+        """
+        cloneValueFlag = kwargs.pop('cloneValueFlag', False)
+
+        initilaizers = self.readOnly.copy()
+        initilaizers.update(kwargs)
+
+        clone = self.__class__(**initilaizers)
+
+        if cloneValueFlag:
+            self._cloneComponentValues(clone, cloneValueFlag)
+
+        return clone
+
+    def subtype(self, **kwargs):
+        """Create a specialization of |ASN.1| schema object.
+
+        The `subtype()` method accepts the same set arguments as |ASN.1|
+        class takes on instantiation except that all parameters
+        of the `subtype()` method are optional.
+
+        With the exception of the arguments described below, the rest of
+        supplied arguments they are used to create a copy of `self` taking
+        precedence over the ones used to instantiate `self`.
+
+        The following arguments to `subtype()` create a ASN.1 subtype out of
+        |ASN.1| type.
+
+        Other Parameters
+        ----------------
+        implicitTag: :py:class:`~pyasn1.type.tag.Tag`
+            Implicitly apply given ASN.1 tag object to `self`'s
+            :py:class:`~pyasn1.type.tag.TagSet`, then use the result as
+            new object's ASN.1 tag(s).
+
+        explicitTag: :py:class:`~pyasn1.type.tag.Tag`
+            Explicitly apply given ASN.1 tag object to `self`'s
+            :py:class:`~pyasn1.type.tag.TagSet`, then use the result as
+            new object's ASN.1 tag(s).
+
+        subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+            Add ASN.1 constraints object to one of the `self`'s, then
+            use the result as new object's ASN.1 constraints.
+
+
+        Returns
+        -------
+        :
+            new instance of |ASN.1| type/value
+
+        Note
+        ----
+        Due to the immutable nature of the |ASN.1| object, if no arguments
+        are supplied, no new |ASN.1| object will be created and `self` will
+        be returned instead.
+        """
+
+        initializers = self.readOnly.copy()
+
+        cloneValueFlag = kwargs.pop('cloneValueFlag', False)
+
+        implicitTag = kwargs.pop('implicitTag', None)
+        if implicitTag is not None:
+            initializers['tagSet'] = self.tagSet.tagImplicitly(implicitTag)
+
+        explicitTag = kwargs.pop('explicitTag', None)
+        if explicitTag is not None:
+            initializers['tagSet'] = self.tagSet.tagExplicitly(explicitTag)
+
+        for arg, option in kwargs.items():
+            initializers[arg] += option
+
+        clone = self.__class__(**initializers)
+
+        if cloneValueFlag:
+            self._cloneComponentValues(clone, cloneValueFlag)
+
+        return clone
+
+    def verifySizeSpec(self):
+        self.sizeSpec(self)
+
+    def getComponentByPosition(self, idx):
+        raise error.PyAsn1Error('Method not implemented')
+
+    def setComponentByPosition(self, idx, value, verifyConstraints=True):
+        raise error.PyAsn1Error('Method not implemented')
+
+    def setComponents(self, *args, **kwargs):
+        for idx, value in enumerate(args):
+            self[idx] = value
+        for k in kwargs:
+            self[k] = kwargs[k]
+        return self
+
+    def clear(self):
+        self._componentValues = []
+
+    # backward compatibility
+
+    def setDefaultComponents(self):
+        pass
+
+    def getComponentType(self):
+        return self.componentType
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/char.py b/venv/lib/python3.5/site-packages/pyasn1/type/char.py
new file mode 100644
index 0000000..8986b70
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/char.py
@@ -0,0 +1,321 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import sys
+
+from pyasn1 import error
+from pyasn1.type import tag
+from pyasn1.type import univ
+
+__all__ = ['NumericString', 'PrintableString', 'TeletexString', 'T61String', 'VideotexString',
+           'IA5String', 'GraphicString', 'VisibleString', 'ISO646String',
+           'GeneralString', 'UniversalString', 'BMPString', 'UTF8String']
+
+NoValue = univ.NoValue
+noValue = univ.noValue
+
+
+class AbstractCharacterString(univ.OctetString):
+    """Creates |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python 2 :class:`unicode` or Python 3 :class:`str`.
+    When used in octet-stream context, |ASN.1| type assumes "|encoding|" encoding.
+
+    Keyword Args
+    ------------
+    value: :class:`unicode`, :class:`str`, :class:`bytes` or |ASN.1| object
+        unicode object (Python 2) or string (Python 3), alternatively string
+        (Python 2) or bytes (Python 3) representing octet-stream of serialised
+        unicode string (note `encoding` parameter) or |ASN.1| class instance.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    encoding: :py:class:`str`
+        Unicode codec ID to encode/decode :class:`unicode` (Python 2) or
+        :class:`str` (Python 3) the payload when |ASN.1| object is used
+        in octet-stream context.
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+    """
+
+    if sys.version_info[0] <= 2:
+        def __str__(self):
+            try:
+                # `str` is Py2 text representation
+                return self._value.encode(self.encoding)
+
+            except UnicodeEncodeError:
+                raise error.PyAsn1Error(
+                    "Can't encode string '%s' with codec %s" % (self._value, self.encoding)
+                )
+
+        def __unicode__(self):
+            return unicode(self._value)
+
+        def prettyIn(self, value):
+            try:
+                if isinstance(value, unicode):
+                    return value
+                elif isinstance(value, str):
+                    return value.decode(self.encoding)
+                elif isinstance(value, (tuple, list)):
+                    return self.prettyIn(''.join([chr(x) for x in value]))
+                elif isinstance(value, univ.OctetString):
+                    return value.asOctets().decode(self.encoding)
+                else:
+                    return unicode(value)
+
+            except (UnicodeDecodeError, LookupError):
+                raise error.PyAsn1Error(
+                    "Can't decode string '%s' with codec %s" % (value, self.encoding)
+                )
+
+        def asOctets(self, padding=True):
+            return str(self)
+
+        def asNumbers(self, padding=True):
+            return tuple([ord(x) for x in str(self)])
+
+    else:
+        def __str__(self):
+            # `unicode` is Py3 text representation
+            return str(self._value)
+
+        def __bytes__(self):
+            try:
+                return self._value.encode(self.encoding)
+            except UnicodeEncodeError:
+                raise error.PyAsn1Error(
+                    "Can't encode string '%s' with codec %s" % (self._value, self.encoding)
+                )
+
+        def prettyIn(self, value):
+            try:
+                if isinstance(value, str):
+                    return value
+                elif isinstance(value, bytes):
+                    return value.decode(self.encoding)
+                elif isinstance(value, (tuple, list)):
+                    return self.prettyIn(bytes(value))
+                elif isinstance(value, univ.OctetString):
+                    return value.asOctets().decode(self.encoding)
+                else:
+                    return str(value)
+
+            except (UnicodeDecodeError, LookupError):
+                raise error.PyAsn1Error(
+                    "Can't decode string '%s' with codec %s" % (value, self.encoding)
+                )
+
+        def asOctets(self, padding=True):
+            return bytes(self)
+
+        def asNumbers(self, padding=True):
+            return tuple(bytes(self))
+
+    #
+    # See OctetString.prettyPrint() for the explanation
+    #
+
+    def prettyOut(self, value):
+        return value
+
+    def prettyPrint(self, scope=0):
+        # first see if subclass has its own .prettyOut()
+        value = self.prettyOut(self._value)
+
+        if value is not self._value:
+            return value
+
+        return AbstractCharacterString.__str__(self)
+
+    def __reversed__(self):
+        return reversed(self._value)
+
+
+class NumericString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 18)
+    )
+    encoding = 'us-ascii'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class PrintableString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 19)
+    )
+    encoding = 'us-ascii'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class TeletexString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 20)
+    )
+    encoding = 'iso-8859-1'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class T61String(TeletexString):
+    __doc__ = TeletexString.__doc__
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class VideotexString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 21)
+    )
+    encoding = 'iso-8859-1'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class IA5String(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 22)
+    )
+    encoding = 'us-ascii'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class GraphicString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 25)
+    )
+    encoding = 'iso-8859-1'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class VisibleString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 26)
+    )
+    encoding = 'us-ascii'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class ISO646String(VisibleString):
+    __doc__ = VisibleString.__doc__
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+class GeneralString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 27)
+    )
+    encoding = 'iso-8859-1'
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class UniversalString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 28)
+    )
+    encoding = "utf-32-be"
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class BMPString(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 30)
+    )
+    encoding = "utf-16-be"
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
+
+
+class UTF8String(AbstractCharacterString):
+    __doc__ = AbstractCharacterString.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = AbstractCharacterString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 12)
+    )
+    encoding = "utf-8"
+
+    # Optimization for faster codec lookup
+    typeId = AbstractCharacterString.getTypeId()
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/constraint.py b/venv/lib/python3.5/site-packages/pyasn1/type/constraint.py
new file mode 100644
index 0000000..b5b06cd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/constraint.py
@@ -0,0 +1,556 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+# Original concept and code by Mike C. Fletcher.
+#
+import sys
+
+from pyasn1.type import error
+
+__all__ = ['SingleValueConstraint', 'ContainedSubtypeConstraint',
+           'ValueRangeConstraint', 'ValueSizeConstraint',
+           'PermittedAlphabetConstraint', 'InnerTypeConstraint',
+           'ConstraintsExclusion', 'ConstraintsIntersection',
+           'ConstraintsUnion']
+
+
+class AbstractConstraint(object):
+
+    def __init__(self, *values):
+        self._valueMap = set()
+        self._setValues(values)
+        self.__hash = hash((self.__class__.__name__, self._values))
+
+    def __call__(self, value, idx=None):
+        if not self._values:
+            return
+
+        try:
+            self._testValue(value, idx)
+
+        except error.ValueConstraintError:
+            raise error.ValueConstraintError(
+                '%s failed at: %r' % (self, sys.exc_info()[1])
+            )
+
+    def __repr__(self):
+        representation = '%s object at 0x%x' % (self.__class__.__name__, id(self))
+
+        if self._values:
+            representation += ' consts %s' % ', '.join([repr(x) for x in self._values])
+
+        return '<%s>' % representation
+
+    def __eq__(self, other):
+        return self is other and True or self._values == other
+
+    def __ne__(self, other):
+        return self._values != other
+
+    def __lt__(self, other):
+        return self._values < other
+
+    def __le__(self, other):
+        return self._values <= other
+
+    def __gt__(self, other):
+        return self._values > other
+
+    def __ge__(self, other):
+        return self._values >= other
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return self._values and True or False
+    else:
+        def __bool__(self):
+            return self._values and True or False
+
+    def __hash__(self):
+        return self.__hash
+
+    def _setValues(self, values):
+        self._values = values
+
+    def _testValue(self, value, idx):
+        raise error.ValueConstraintError(value)
+
+    # Constraints derivation logic
+    def getValueMap(self):
+        return self._valueMap
+
+    def isSuperTypeOf(self, otherConstraint):
+        # TODO: fix possible comparison of set vs scalars here
+        return (otherConstraint is self or
+                not self._values or
+                otherConstraint == self or
+                self in otherConstraint.getValueMap())
+
+    def isSubTypeOf(self, otherConstraint):
+        return (otherConstraint is self or
+                not self or
+                otherConstraint == self or
+                otherConstraint in self._valueMap)
+
+
+class SingleValueConstraint(AbstractConstraint):
+    """Create a SingleValueConstraint object.
+
+    The SingleValueConstraint satisfies any value that
+    is present in the set of permitted values.
+
+    The SingleValueConstraint object can be applied to
+    any ASN.1 type.
+
+    Parameters
+    ----------
+    \*values: :class:`int`
+        Full set of values permitted by this constraint object.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class DivisorOfSix(Integer):
+            '''
+            ASN.1 specification:
+
+            Divisor-Of-6 ::= INTEGER (1 | 2 | 3 | 6)
+            '''
+            subtypeSpec = SingleValueConstraint(1, 2, 3, 6)
+
+        # this will succeed
+        divisor_of_six = DivisorOfSix(1)
+
+        # this will raise ValueConstraintError
+        divisor_of_six = DivisorOfSix(7)
+    """
+    def _setValues(self, values):
+        self._values = values
+        self._set = set(values)
+
+    def _testValue(self, value, idx):
+        if value not in self._set:
+            raise error.ValueConstraintError(value)
+
+
+class ContainedSubtypeConstraint(AbstractConstraint):
+    """Create a ContainedSubtypeConstraint object.
+
+    The ContainedSubtypeConstraint satisfies any value that
+    is present in the set of permitted values and also
+    satisfies included constraints.
+
+    The ContainedSubtypeConstraint object can be applied to
+    any ASN.1 type.
+
+    Parameters
+    ----------
+    \*values:
+        Full set of values and constraint objects permitted
+        by this constraint object.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class DivisorOfEighteen(Integer):
+            '''
+            ASN.1 specification:
+
+            Divisors-of-18 ::= INTEGER (INCLUDES Divisors-of-6 | 9 | 18)
+            '''
+            subtypeSpec = ContainedSubtypeConstraint(
+                SingleValueConstraint(1, 2, 3, 6), 9, 18
+            )
+
+        # this will succeed
+        divisor_of_eighteen = DivisorOfEighteen(9)
+
+        # this will raise ValueConstraintError
+        divisor_of_eighteen = DivisorOfEighteen(10)
+    """
+    def _testValue(self, value, idx):
+        for constraint in self._values:
+            if isinstance(constraint, AbstractConstraint):
+                constraint(value, idx)
+            elif value not in self._set:
+                raise error.ValueConstraintError(value)
+
+
+class ValueRangeConstraint(AbstractConstraint):
+    """Create a ValueRangeConstraint object.
+
+    The ValueRangeConstraint satisfies any value that
+    falls in the range of permitted values.
+
+    The ValueRangeConstraint object can only be applied
+    to :class:`~pyasn1.type.univ.Integer` and
+    :class:`~pyasn1.type.univ.Real` types.
+
+    Parameters
+    ----------
+    start: :class:`int`
+        Minimum permitted value in the range (inclusive)
+
+    end: :class:`int`
+        Maximum permitted value in the range (inclusive)
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class TeenAgeYears(Integer):
+            '''
+            ASN.1 specification:
+
+            TeenAgeYears ::= INTEGER (13 .. 19)
+            '''
+            subtypeSpec = ValueRangeConstraint(13, 19)
+
+        # this will succeed
+        teen_year = TeenAgeYears(18)
+
+        # this will raise ValueConstraintError
+        teen_year = TeenAgeYears(20)
+    """
+    def _testValue(self, value, idx):
+        if value < self.start or value > self.stop:
+            raise error.ValueConstraintError(value)
+
+    def _setValues(self, values):
+        if len(values) != 2:
+            raise error.PyAsn1Error(
+                '%s: bad constraint values' % (self.__class__.__name__,)
+            )
+        self.start, self.stop = values
+        if self.start > self.stop:
+            raise error.PyAsn1Error(
+                '%s: screwed constraint values (start > stop): %s > %s' % (
+                    self.__class__.__name__,
+                    self.start, self.stop
+                )
+            )
+        AbstractConstraint._setValues(self, values)
+
+
+class ValueSizeConstraint(ValueRangeConstraint):
+    """Create a ValueSizeConstraint object.
+
+    The ValueSizeConstraint satisfies any value for
+    as long as its size falls within the range of
+    permitted sizes.
+
+    The ValueSizeConstraint object can be applied
+    to :class:`~pyasn1.type.univ.BitString`,
+    :class:`~pyasn1.type.univ.OctetString` (including
+    all :ref:`character ASN.1 types <type.char>`),
+    :class:`~pyasn1.type.univ.SequenceOf`
+    and :class:`~pyasn1.type.univ.SetOf` types.
+
+    Parameters
+    ----------
+    minimum: :class:`int`
+        Minimum permitted size of the value (inclusive)
+
+    maximum: :class:`int`
+        Maximum permitted size of the value (inclusive)
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class BaseballTeamRoster(SetOf):
+            '''
+            ASN.1 specification:
+
+            BaseballTeamRoster ::= SET SIZE (1..25) OF PlayerNames
+            '''
+            componentType = PlayerNames()
+            subtypeSpec = ValueSizeConstraint(1, 25)
+
+        # this will succeed
+        team = BaseballTeamRoster()
+        team.extend(['Jan', 'Matej'])
+        encode(team)
+
+        # this will raise ValueConstraintError
+        team = BaseballTeamRoster()
+        team.extend(['Jan'] * 26)
+        encode(team)
+
+    Note
+    ----
+    Whenever ValueSizeConstraint is applied to mutable types
+    (e.g. :class:`~pyasn1.type.univ.SequenceOf`,
+    :class:`~pyasn1.type.univ.SetOf`), constraint
+    validation only happens at the serialisation phase rather
+    than schema instantiation phase (as it is with immutable
+    types).
+    """
+    def _testValue(self, value, idx):
+        valueSize = len(value)
+        if valueSize < self.start or valueSize > self.stop:
+            raise error.ValueConstraintError(value)
+
+
+class PermittedAlphabetConstraint(SingleValueConstraint):
+    """Create a PermittedAlphabetConstraint object.
+
+    The PermittedAlphabetConstraint satisfies any character
+    string for as long as all its characters are present in
+    the set of permitted characters.
+
+    The PermittedAlphabetConstraint object can only be applied
+    to the :ref:`character ASN.1 types <type.char>` such as
+    :class:`~pyasn1.type.char.IA5String`.
+
+    Parameters
+    ----------
+    \*alphabet: :class:`str`
+        Full set of characters permitted by this constraint object.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class BooleanValue(IA5String):
+            '''
+            ASN.1 specification:
+
+            BooleanValue ::= IA5String (FROM ('T' | 'F'))
+            '''
+            subtypeSpec = PermittedAlphabetConstraint('T', 'F')
+
+        # this will succeed
+        truth = BooleanValue('T')
+        truth = BooleanValue('TF')
+
+        # this will raise ValueConstraintError
+        garbage = BooleanValue('TAF')
+    """
+    def _setValues(self, values):
+        self._values = values
+        self._set = set(values)
+
+    def _testValue(self, value, idx):
+        if not self._set.issuperset(value):
+            raise error.ValueConstraintError(value)
+
+
+# This is a bit kludgy, meaning two op modes within a single constraint
+class InnerTypeConstraint(AbstractConstraint):
+    """Value must satisfy the type and presence constraints"""
+
+    def _testValue(self, value, idx):
+        if self.__singleTypeConstraint:
+            self.__singleTypeConstraint(value)
+        elif self.__multipleTypeConstraint:
+            if idx not in self.__multipleTypeConstraint:
+                raise error.ValueConstraintError(value)
+            constraint, status = self.__multipleTypeConstraint[idx]
+            if status == 'ABSENT':  # XXX presense is not checked!
+                raise error.ValueConstraintError(value)
+            constraint(value)
+
+    def _setValues(self, values):
+        self.__multipleTypeConstraint = {}
+        self.__singleTypeConstraint = None
+        for v in values:
+            if isinstance(v, tuple):
+                self.__multipleTypeConstraint[v[0]] = v[1], v[2]
+            else:
+                self.__singleTypeConstraint = v
+        AbstractConstraint._setValues(self, values)
+
+
+# Logic operations on constraints
+
+class ConstraintsExclusion(AbstractConstraint):
+    """Create a ConstraintsExclusion logic operator object.
+
+    The ConstraintsExclusion logic operator succeeds when the
+    value does *not* satisfy the operand constraint.
+
+    The ConstraintsExclusion object can be applied to
+    any constraint and logic operator object.
+
+    Parameters
+    ----------
+    constraint:
+        Constraint or logic operator object.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Lipogramme(IA5STRING):
+            '''
+            ASN.1 specification:
+
+            Lipogramme ::=
+                IA5String (FROM (ALL EXCEPT ("e"|"E")))
+            '''
+            subtypeSpec = ConstraintsExclusion(
+                PermittedAlphabetConstraint('e', 'E')
+            )
+
+        # this will succeed
+        lipogramme = Lipogramme('A work of fiction?')
+
+        # this will raise ValueConstraintError
+        lipogramme = Lipogramme('Eel')
+
+    Warning
+    -------
+    The above example involving PermittedAlphabetConstraint might
+    not work due to the way how PermittedAlphabetConstraint works.
+    The other constraints might work with ConstraintsExclusion
+    though.
+    """
+    def _testValue(self, value, idx):
+        try:
+            self._values[0](value, idx)
+        except error.ValueConstraintError:
+            return
+        else:
+            raise error.ValueConstraintError(value)
+
+    def _setValues(self, values):
+        if len(values) != 1:
+            raise error.PyAsn1Error('Single constraint expected')
+
+        AbstractConstraint._setValues(self, values)
+
+
+class AbstractConstraintSet(AbstractConstraint):
+
+    def __getitem__(self, idx):
+        return self._values[idx]
+
+    def __iter__(self):
+        return iter(self._values)
+
+    def __add__(self, value):
+        return self.__class__(*(self._values + (value,)))
+
+    def __radd__(self, value):
+        return self.__class__(*((value,) + self._values))
+
+    def __len__(self):
+        return len(self._values)
+
+    # Constraints inclusion in sets
+
+    def _setValues(self, values):
+        self._values = values
+        for constraint in values:
+            if constraint:
+                self._valueMap.add(constraint)
+                self._valueMap.update(constraint.getValueMap())
+
+
+class ConstraintsIntersection(AbstractConstraintSet):
+    """Create a ConstraintsIntersection logic operator object.
+
+    The ConstraintsIntersection logic operator only succeeds
+    if *all* its operands succeed.
+
+    The ConstraintsIntersection object can be applied to
+    any constraint and logic operator objects.
+
+    The ConstraintsIntersection object duck-types the immutable
+    container object like Python :py:class:`tuple`.
+
+    Parameters
+    ----------
+    \*constraints:
+        Constraint or logic operator objects.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class CapitalAndSmall(IA5String):
+            '''
+            ASN.1 specification:
+
+            CapitalAndSmall ::=
+                IA5String (FROM ("A".."Z"|"a".."z"))
+            '''
+            subtypeSpec = ConstraintsIntersection(
+                PermittedAlphabetConstraint('A', 'Z'),
+                PermittedAlphabetConstraint('a', 'z')
+            )
+
+        # this will succeed
+        capital_and_small = CapitalAndSmall('Hello')
+
+        # this will raise ValueConstraintError
+        capital_and_small = CapitalAndSmall('hello')
+    """
+    def _testValue(self, value, idx):
+        for constraint in self._values:
+            constraint(value, idx)
+
+
+class ConstraintsUnion(AbstractConstraintSet):
+    """Create a ConstraintsUnion logic operator object.
+
+    The ConstraintsUnion logic operator only succeeds if
+    *at least a single* operand succeeds.
+
+    The ConstraintsUnion object can be applied to
+    any constraint and logic operator objects.
+
+    The ConstraintsUnion object duck-types the immutable
+    container object like Python :py:class:`tuple`.
+
+    Parameters
+    ----------
+    \*constraints:
+        Constraint or logic operator objects.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class CapitalOrSmall(IA5String):
+            '''
+            ASN.1 specification:
+
+            CapitalOrSmall ::=
+                IA5String (FROM ("A".."Z") | FROM ("a".."z"))
+            '''
+            subtypeSpec = ConstraintsIntersection(
+                PermittedAlphabetConstraint('A', 'Z'),
+                PermittedAlphabetConstraint('a', 'z')
+            )
+
+        # this will succeed
+        capital_or_small = CapitalAndSmall('Hello')
+
+        # this will raise ValueConstraintError
+        capital_or_small = CapitalOrSmall('hello!')
+    """
+    def _testValue(self, value, idx):
+        for constraint in self._values:
+            try:
+                constraint(value, idx)
+            except error.ValueConstraintError:
+                pass
+            else:
+                return
+
+        raise error.ValueConstraintError(
+            'all of %s failed for "%s"' % (self._values, value)
+        )
+
+# TODO:
+# refactor InnerTypeConstraint
+# add tests for type check
+# implement other constraint types
+# make constraint validation easy to skip
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/error.py b/venv/lib/python3.5/site-packages/pyasn1/type/error.py
new file mode 100644
index 0000000..3325962
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/error.py
@@ -0,0 +1,11 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1.error import PyAsn1Error
+
+
+class ValueConstraintError(PyAsn1Error):
+    pass
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/namedtype.py b/venv/lib/python3.5/site-packages/pyasn1/type/namedtype.py
new file mode 100644
index 0000000..93f0b7e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/namedtype.py
@@ -0,0 +1,559 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import sys
+
+from pyasn1 import error
+from pyasn1.type import tag
+from pyasn1.type import tagmap
+
+__all__ = ['NamedType', 'OptionalNamedType', 'DefaultedNamedType',
+           'NamedTypes']
+
+try:
+    any
+
+except NameError:
+    any = lambda x: bool(filter(bool, x))
+
+
+class NamedType(object):
+    """Create named field object for a constructed ASN.1 type.
+
+    The |NamedType| object represents a single name and ASN.1 type of a constructed ASN.1 type.
+
+    |NamedType| objects are immutable and duck-type Python :class:`tuple` objects
+    holding *name* and *asn1Object* components.
+
+    Parameters
+    ----------
+    name: :py:class:`str`
+        Field name
+
+    asn1Object:
+        ASN.1 type object
+    """
+    isOptional = False
+    isDefaulted = False
+
+    def __init__(self, name, asn1Object, openType=None):
+        self.__name = name
+        self.__type = asn1Object
+        self.__nameAndType = name, asn1Object
+        self.__openType = openType
+
+    def __repr__(self):
+        representation = '%s=%r' % (self.name, self.asn1Object)
+
+        if self.openType:
+            representation += ' openType: %r' % self.openType
+
+        return '<%s object at 0x%x type %s>' % (self.__class__.__name__, id(self), representation)
+
+    def __eq__(self, other):
+        return self.__nameAndType == other
+
+    def __ne__(self, other):
+        return self.__nameAndType != other
+
+    def __lt__(self, other):
+        return self.__nameAndType < other
+
+    def __le__(self, other):
+        return self.__nameAndType <= other
+
+    def __gt__(self, other):
+        return self.__nameAndType > other
+
+    def __ge__(self, other):
+        return self.__nameAndType >= other
+
+    def __hash__(self):
+        return hash(self.__nameAndType)
+
+    def __getitem__(self, idx):
+        return self.__nameAndType[idx]
+
+    def __iter__(self):
+        return iter(self.__nameAndType)
+
+    @property
+    def name(self):
+        return self.__name
+
+    @property
+    def asn1Object(self):
+        return self.__type
+
+    @property
+    def openType(self):
+        return self.__openType
+
+    # Backward compatibility
+
+    def getName(self):
+        return self.name
+
+    def getType(self):
+        return self.asn1Object
+
+
+class OptionalNamedType(NamedType):
+    __doc__ = NamedType.__doc__
+
+    isOptional = True
+
+
+class DefaultedNamedType(NamedType):
+    __doc__ = NamedType.__doc__
+
+    isDefaulted = True
+
+
+class NamedTypes(object):
+    """Create a collection of named fields for a constructed ASN.1 type.
+
+    The NamedTypes object represents a collection of named fields of a constructed ASN.1 type.
+
+    *NamedTypes* objects are immutable and duck-type Python :class:`dict` objects
+    holding *name* as keys and ASN.1 type object as values.
+
+    Parameters
+    ----------
+    *namedTypes: :class:`~pyasn1.type.namedtype.NamedType`
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class Description(Sequence):
+            '''
+            ASN.1 specification:
+
+            Description ::= SEQUENCE {
+                surname    IA5String,
+                first-name IA5String OPTIONAL,
+                age        INTEGER DEFAULT 40
+            }
+            '''
+            componentType = NamedTypes(
+                NamedType('surname', IA5String()),
+                OptionalNamedType('first-name', IA5String()),
+                DefaultedNamedType('age', Integer(40))
+            )
+
+        descr = Description()
+        descr['surname'] = 'Smith'
+        descr['first-name'] = 'John'
+    """
+    def __init__(self, *namedTypes, **kwargs):
+        self.__namedTypes = namedTypes
+        self.__namedTypesLen = len(self.__namedTypes)
+        self.__minTagSet = self.__computeMinTagSet()
+        self.__nameToPosMap = self.__computeNameToPosMap()
+        self.__tagToPosMap = self.__computeTagToPosMap()
+        self.__ambiguousTypes = 'terminal' not in kwargs and self.__computeAmbiguousTypes() or {}
+        self.__uniqueTagMap = self.__computeTagMaps(unique=True)
+        self.__nonUniqueTagMap = self.__computeTagMaps(unique=False)
+        self.__hasOptionalOrDefault = any([True for namedType in self.__namedTypes
+                                           if namedType.isDefaulted or namedType.isOptional])
+        self.__hasOpenTypes = any([True for namedType in self.__namedTypes
+                                   if namedType.openType])
+
+        self.__requiredComponents = frozenset(
+                [idx for idx, nt in enumerate(self.__namedTypes) if not nt.isOptional and not nt.isDefaulted]
+            )
+        self.__keys = frozenset([namedType.name for namedType in self.__namedTypes])
+        self.__values = tuple([namedType.asn1Object for namedType in self.__namedTypes])
+        self.__items = tuple([(namedType.name, namedType.asn1Object) for namedType in self.__namedTypes])
+
+    def __repr__(self):
+        representation = ', '.join(['%r' % x for x in self.__namedTypes])
+        return '<%s object at 0x%x types %s>' % (self.__class__.__name__, id(self), representation)
+
+    def __eq__(self, other):
+        return self.__namedTypes == other
+
+    def __ne__(self, other):
+        return self.__namedTypes != other
+
+    def __lt__(self, other):
+        return self.__namedTypes < other
+
+    def __le__(self, other):
+        return self.__namedTypes <= other
+
+    def __gt__(self, other):
+        return self.__namedTypes > other
+
+    def __ge__(self, other):
+        return self.__namedTypes >= other
+
+    def __hash__(self):
+        return hash(self.__namedTypes)
+
+    def __getitem__(self, idx):
+        try:
+            return self.__namedTypes[idx]
+
+        except TypeError:
+            return self.__namedTypes[self.__nameToPosMap[idx]]
+
+    def __contains__(self, key):
+        return key in self.__nameToPosMap
+
+    def __iter__(self):
+        return (x[0] for x in self.__namedTypes)
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return self.__namedTypesLen > 0
+    else:
+        def __bool__(self):
+            return self.__namedTypesLen > 0
+
+    def __len__(self):
+        return self.__namedTypesLen
+
+    # Python dict protocol
+
+    def values(self):
+        return self.__values
+
+    def keys(self):
+        return self.__keys
+
+    def items(self):
+        return self.__items
+
+    def clone(self):
+        return self.__class__(*self.__namedTypes)
+
+    class PostponedError(object):
+        def __init__(self, errorMsg):
+            self.__errorMsg = errorMsg
+
+        def __getitem__(self, item):
+            raise  error.PyAsn1Error(self.__errorMsg)
+
+    def __computeTagToPosMap(self):
+        tagToPosMap = {}
+        for idx, namedType in enumerate(self.__namedTypes):
+            tagMap = namedType.asn1Object.tagMap
+            if isinstance(tagMap, NamedTypes.PostponedError):
+                return tagMap
+            if not tagMap:
+                continue
+            for _tagSet in tagMap.presentTypes:
+                if _tagSet in tagToPosMap:
+                    return NamedTypes.PostponedError('Duplicate component tag %s at %s' % (_tagSet, namedType))
+                tagToPosMap[_tagSet] = idx
+
+        return tagToPosMap
+
+    def __computeNameToPosMap(self):
+        nameToPosMap = {}
+        for idx, namedType in enumerate(self.__namedTypes):
+            if namedType.name in nameToPosMap:
+                return NamedTypes.PostponedError('Duplicate component name %s at %s' % (namedType.name, namedType))
+            nameToPosMap[namedType.name] = idx
+
+        return nameToPosMap
+
+    def __computeAmbiguousTypes(self):
+        ambigiousTypes = {}
+        partialAmbigiousTypes = ()
+        for idx, namedType in reversed(tuple(enumerate(self.__namedTypes))):
+            if namedType.isOptional or namedType.isDefaulted:
+                partialAmbigiousTypes = (namedType,) + partialAmbigiousTypes
+            else:
+                partialAmbigiousTypes = (namedType,)
+            if len(partialAmbigiousTypes) == len(self.__namedTypes):
+                ambigiousTypes[idx] = self
+            else:
+                ambigiousTypes[idx] = NamedTypes(*partialAmbigiousTypes, **dict(terminal=True))
+        return ambigiousTypes
+
+    def getTypeByPosition(self, idx):
+        """Return ASN.1 type object by its position in fields set.
+
+        Parameters
+        ----------
+        idx: :py:class:`int`
+            Field index
+
+        Returns
+        -------
+        :
+            ASN.1 type
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If given position is out of fields range
+        """
+        try:
+            return self.__namedTypes[idx].asn1Object
+
+        except IndexError:
+            raise error.PyAsn1Error('Type position out of range')
+
+    def getPositionByType(self, tagSet):
+        """Return field position by its ASN.1 type.
+
+        Parameters
+        ----------
+        tagSet: :class:`~pysnmp.type.tag.TagSet`
+            ASN.1 tag set distinguishing one ASN.1 type from others.
+
+        Returns
+        -------
+        : :py:class:`int`
+            ASN.1 type position in fields set
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If *tagSet* is not present or ASN.1 types are not unique within callee *NamedTypes*
+        """
+        try:
+            return self.__tagToPosMap[tagSet]
+
+        except KeyError:
+            raise error.PyAsn1Error('Type %s not found' % (tagSet,))
+
+    def getNameByPosition(self, idx):
+        """Return field name by its position in fields set.
+
+        Parameters
+        ----------
+        idx: :py:class:`idx`
+            Field index
+
+        Returns
+        -------
+        : :py:class:`str`
+            Field name
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If given field name is not present in callee *NamedTypes*
+        """
+        try:
+            return self.__namedTypes[idx].name
+
+        except IndexError:
+            raise error.PyAsn1Error('Type position out of range')
+
+    def getPositionByName(self, name):
+        """Return field position by filed name.
+
+        Parameters
+        ----------
+        name: :py:class:`str`
+            Field name
+
+        Returns
+        -------
+        : :py:class:`int`
+            Field position in fields set
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If *name* is not present or not unique within callee *NamedTypes*
+        """
+        try:
+            return self.__nameToPosMap[name]
+
+        except KeyError:
+            raise error.PyAsn1Error('Name %s not found' % (name,))
+
+    def getTagMapNearPosition(self, idx):
+        """Return ASN.1 types that are allowed at or past given field position.
+
+        Some ASN.1 serialisation allow for skipping optional and defaulted fields.
+        Some constructed ASN.1 types allow reordering of the fields. When recovering
+        such objects it may be important to know which types can possibly be
+        present at any given position in the field sets.
+
+        Parameters
+        ----------
+        idx: :py:class:`int`
+            Field index
+
+        Returns
+        -------
+        : :class:`~pyasn1.type.tagmap.TagMap`
+            Map if ASN.1 types allowed at given field position
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If given position is out of fields range
+        """
+        try:
+            return self.__ambiguousTypes[idx].tagMap
+
+        except KeyError:
+            raise error.PyAsn1Error('Type position out of range')
+
+    def getPositionNearType(self, tagSet, idx):
+        """Return the closest field position where given ASN.1 type is allowed.
+
+        Some ASN.1 serialisation allow for skipping optional and defaulted fields.
+        Some constructed ASN.1 types allow reordering of the fields. When recovering
+        such objects it may be important to know at which field position, in field set,
+        given *tagSet* is allowed at or past *idx* position.
+
+        Parameters
+        ----------
+        tagSet: :class:`~pyasn1.type.tag.TagSet`
+           ASN.1 type which field position to look up
+
+        idx: :py:class:`int`
+            Field position at or past which to perform ASN.1 type look up
+
+        Returns
+        -------
+        : :py:class:`int`
+            Field position in fields set
+
+        Raises
+        ------
+        : :class:`~pyasn1.error.PyAsn1Error`
+            If *tagSet* is not present or not unique within callee *NamedTypes*
+            or *idx* is out of fields range
+        """
+        try:
+            return idx + self.__ambiguousTypes[idx].getPositionByType(tagSet)
+
+        except KeyError:
+            raise error.PyAsn1Error('Type position out of range')
+
+    def __computeMinTagSet(self):
+        minTagSet = None
+        for namedType in self.__namedTypes:
+            asn1Object = namedType.asn1Object
+
+            try:
+                tagSet = asn1Object.minTagSet
+
+            except AttributeError:
+                tagSet = asn1Object.tagSet
+
+            if minTagSet is None or tagSet < minTagSet:
+                minTagSet = tagSet
+
+        return minTagSet or tag.TagSet()
+
+    @property
+    def minTagSet(self):
+        """Return the minimal TagSet among ASN.1 type in callee *NamedTypes*.
+
+        Some ASN.1 types/serialisation protocols require ASN.1 types to be
+        arranged based on their numerical tag value. The *minTagSet* property
+        returns that.
+
+        Returns
+        -------
+        : :class:`~pyasn1.type.tagset.TagSet`
+            Minimal TagSet among ASN.1 types in callee *NamedTypes*
+        """
+        return self.__minTagSet
+
+    def __computeTagMaps(self, unique):
+        presentTypes = {}
+        skipTypes = {}
+        defaultType = None
+        for namedType in self.__namedTypes:
+            tagMap = namedType.asn1Object.tagMap
+            if isinstance(tagMap, NamedTypes.PostponedError):
+                return tagMap
+            for tagSet in tagMap:
+                if unique and tagSet in presentTypes:
+                    return NamedTypes.PostponedError('Non-unique tagSet %s of %s at %s' % (tagSet, namedType, self))
+                presentTypes[tagSet] = namedType.asn1Object
+            skipTypes.update(tagMap.skipTypes)
+
+            if defaultType is None:
+                defaultType = tagMap.defaultType
+            elif tagMap.defaultType is not None:
+                return NamedTypes.PostponedError('Duplicate default ASN.1 type at %s' % (self,))
+
+        return tagmap.TagMap(presentTypes, skipTypes, defaultType)
+
+    @property
+    def tagMap(self):
+        """Return a *TagMap* object from tags and types recursively.
+
+        Return a :class:`~pyasn1.type.tagmap.TagMap` object by
+        combining tags from *TagMap* objects of children types and
+        associating them with their immediate child type.
+
+        Example
+        -------
+        .. code-block:: python
+
+           OuterType ::= CHOICE {
+               innerType INTEGER
+           }
+
+        Calling *.tagMap* on *OuterType* will yield a map like this:
+
+        .. code-block:: python
+
+           Integer.tagSet -> Choice
+        """
+        return self.__nonUniqueTagMap
+
+    @property
+    def tagMapUnique(self):
+        """Return a *TagMap* object from unique tags and types recursively.
+
+        Return a :class:`~pyasn1.type.tagmap.TagMap` object by
+        combining tags from *TagMap* objects of children types and
+        associating them with their immediate child type.
+
+        Example
+        -------
+        .. code-block:: python
+
+           OuterType ::= CHOICE {
+               innerType INTEGER
+           }
+
+        Calling *.tagMapUnique* on *OuterType* will yield a map like this:
+
+        .. code-block:: python
+
+           Integer.tagSet -> Choice
+
+        Note
+        ----
+
+        Duplicate *TagSet* objects found in the tree of children
+        types would cause error.
+        """
+        return self.__uniqueTagMap
+
+    @property
+    def hasOptionalOrDefault(self):
+        return self.__hasOptionalOrDefault
+
+    @property
+    def hasOpenTypes(self):
+        return self.__hasOpenTypes
+
+    @property
+    def namedTypes(self):
+        return tuple(self.__namedTypes)
+
+    @property
+    def requiredComponents(self):
+        return self.__requiredComponents
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/namedval.py b/venv/lib/python3.5/site-packages/pyasn1/type/namedval.py
new file mode 100644
index 0000000..93cd76f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/namedval.py
@@ -0,0 +1,191 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+# ASN.1 named integers
+#
+from pyasn1 import error
+
+__all__ = ['NamedValues']
+
+
+class NamedValues(object):
+    """Create named values object.
+
+    The |NamedValues| object represents a collection of string names
+    associated with numeric IDs. These objects are used for giving
+    names to otherwise numerical values.
+
+    |NamedValues| objects are immutable and duck-type Python
+    :class:`dict` object mapping ID to name and vice-versa.
+
+    Parameters
+    ----------
+    \*args: variable number of two-element :py:class:`tuple`
+
+        name: :py:class:`str`
+            Value label
+
+        value: :py:class:`int`
+            Numeric value
+
+    Keyword Args
+    ------------
+    name: :py:class:`str`
+        Value label
+
+    value: :py:class:`int`
+        Numeric value
+
+    Examples
+    --------
+
+    .. code-block:: pycon
+
+        >>> nv = NamedValues('a', 'b', ('c', 0), d=1)
+        >>> nv
+        >>> {'c': 0, 'd': 1, 'a': 2, 'b': 3}
+        >>> nv[0]
+        'c'
+        >>> nv['a']
+        2
+    """
+    def __init__(self, *args, **kwargs):
+        self.__names = {}
+        self.__numbers = {}
+
+        anonymousNames = []
+
+        for namedValue in args:
+            if isinstance(namedValue, (tuple, list)):
+                try:
+                    name, number = namedValue
+
+                except ValueError:
+                    raise error.PyAsn1Error('Not a proper attribute-value pair %r' % (namedValue,))
+
+            else:
+                anonymousNames.append(namedValue)
+                continue
+
+            if name in self.__names:
+                raise error.PyAsn1Error('Duplicate name %s' % (name,))
+
+            if number in self.__numbers:
+                raise error.PyAsn1Error('Duplicate number  %s=%s' % (name, number))
+
+            self.__names[name] = number
+            self.__numbers[number] = name
+
+        for name, number in kwargs.items():
+            if name in self.__names:
+                raise error.PyAsn1Error('Duplicate name %s' % (name,))
+
+            if number in self.__numbers:
+                raise error.PyAsn1Error('Duplicate number  %s=%s' % (name, number))
+
+            self.__names[name] = number
+            self.__numbers[number] = name
+
+        if anonymousNames:
+
+            number = self.__numbers and max(self.__numbers) + 1 or 0
+
+            for name in anonymousNames:
+
+                if name in self.__names:
+                    raise error.PyAsn1Error('Duplicate name %s' % (name,))
+
+                self.__names[name] = number
+                self.__numbers[number] = name
+
+                number += 1
+
+    def __repr__(self):
+        representation = ', '.join(['%s=%d' % x for x in self.items()])
+
+        if len(representation) > 64:
+            representation = representation[:32] + '...' + representation[-32:]
+
+        return '<%s object 0x%x enums %s>' % (self.__class__.__name__, id(self), representation)
+
+    def __eq__(self, other):
+        return dict(self) == other
+
+    def __ne__(self, other):
+        return dict(self) != other
+
+    def __lt__(self, other):
+        return dict(self) < other
+
+    def __le__(self, other):
+        return dict(self) <= other
+
+    def __gt__(self, other):
+        return dict(self) > other
+
+    def __ge__(self, other):
+        return dict(self) >= other
+
+    def __hash__(self):
+        return hash(self.items())
+
+    # Python dict protocol (read-only)
+
+    def __getitem__(self, key):
+        try:
+            return self.__numbers[key]
+
+        except KeyError:
+            return self.__names[key]
+
+    def __len__(self):
+        return len(self.__names)
+
+    def __contains__(self, key):
+        return key in self.__names or key in self.__numbers
+
+    def __iter__(self):
+        return iter(self.__names)
+
+    def values(self):
+        return iter(self.__numbers)
+
+    def keys(self):
+        return iter(self.__names)
+
+    def items(self):
+        for name in self.__names:
+            yield name, self.__names[name]
+
+    # support merging
+
+    def __add__(self, namedValues):
+        return self.__class__(*tuple(self.items()) + tuple(namedValues.items()))
+
+    # XXX clone/subtype?
+
+    def clone(self, *args, **kwargs):
+        new = self.__class__(*args, **kwargs)
+        return self + new
+
+    # legacy protocol
+
+    def getName(self, value):
+        if value in self.__numbers:
+            return self.__numbers[value]
+
+    def getValue(self, name):
+        if name in self.__names:
+            return self.__names[name]
+
+    def getValues(self, *names):
+        try:
+            return [self.__names[name] for name in names]
+
+        except KeyError:
+            raise error.PyAsn1Error(
+                'Unknown bit identifier(s): %s' % (set(names).difference(self.__names),)
+            )
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/opentype.py b/venv/lib/python3.5/site-packages/pyasn1/type/opentype.py
new file mode 100644
index 0000000..46e7d45
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/opentype.py
@@ -0,0 +1,75 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+
+__all__ = ['OpenType']
+
+
+class OpenType(object):
+    """Create ASN.1 type map indexed by a value
+
+    The *DefinedBy* object models the ASN.1 *DEFINED BY* clause which maps
+    values to ASN.1 types in the context of the ASN.1 SEQUENCE/SET type.
+
+    OpenType objects are duck-type a read-only Python :class:`dict` objects,
+    however the passed `typeMap` is stored by reference.
+
+    Parameters
+    ----------
+    name: :py:class:`str`
+        Field name
+
+    typeMap: :py:class:`dict`
+        A map of value->ASN.1 type. It's stored by reference and can be
+        mutated later to register new mappings.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        openType = OpenType(
+            'id',
+            {1: Integer(),
+             2: OctetString()}
+        )
+        Sequence(
+            componentType=NamedTypes(
+                NamedType('id', Integer()),
+                NamedType('blob', Any(), openType=openType)
+            )
+        )
+    """
+
+    def __init__(self, name, typeMap=None):
+        self.__name = name
+        if typeMap is None:
+            self.__typeMap = {}
+        else:
+            self.__typeMap = typeMap
+
+    @property
+    def name(self):
+        return self.__name
+
+    # Python dict protocol
+
+    def values(self):
+        return self.__typeMap.values()
+
+    def keys(self):
+        return self.__typeMap.keys()
+
+    def items(self):
+        return self.__typeMap.items()
+
+    def __contains__(self, key):
+        return key in self.__typeMap
+
+    def __getitem__(self, key):
+        return self.__typeMap[key]
+
+    def __iter__(self):
+        return iter(self.__typeMap)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/tag.py b/venv/lib/python3.5/site-packages/pyasn1/type/tag.py
new file mode 100644
index 0000000..b14b5e1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/tag.py
@@ -0,0 +1,333 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import error
+
+__all__ = ['tagClassUniversal', 'tagClassApplication', 'tagClassContext',
+           'tagClassPrivate', 'tagFormatSimple', 'tagFormatConstructed',
+           'tagCategoryImplicit', 'tagCategoryExplicit',
+           'tagCategoryUntagged', 'Tag', 'TagSet']
+
+#: Identifier for ASN.1 class UNIVERSAL
+tagClassUniversal = 0x00
+
+#: Identifier for ASN.1 class APPLICATION
+tagClassApplication = 0x40
+
+#: Identifier for ASN.1 class context-specific
+tagClassContext = 0x80
+
+#: Identifier for ASN.1 class private
+tagClassPrivate = 0xC0
+
+#: Identifier for "simple" ASN.1 structure (e.g. scalar)
+tagFormatSimple = 0x00
+
+#: Identifier for "constructed" ASN.1 structure (e.g. may have inner components)
+tagFormatConstructed = 0x20
+
+tagCategoryImplicit = 0x01
+tagCategoryExplicit = 0x02
+tagCategoryUntagged = 0x04
+
+
+class Tag(object):
+    """Create ASN.1 tag
+
+    Represents ASN.1 tag that can be attached to a ASN.1 type to make
+    types distinguishable from each other.
+
+    *Tag* objects are immutable and duck-type Python :class:`tuple` objects
+    holding three integer components of a tag.
+
+    Parameters
+    ----------
+    tagClass: :py:class:`int`
+        Tag *class* value
+
+    tagFormat: :py:class:`int`
+        Tag *format* value
+
+    tagId: :py:class:`int`
+        Tag ID value
+    """
+    def __init__(self, tagClass, tagFormat, tagId):
+        if tagId < 0:
+            raise error.PyAsn1Error('Negative tag ID (%s) not allowed' % tagId)
+        self.__tagClass = tagClass
+        self.__tagFormat = tagFormat
+        self.__tagId = tagId
+        self.__tagClassId = tagClass, tagId
+        self.__hash = hash(self.__tagClassId)
+
+    def __repr__(self):
+        representation = '[%s:%s:%s]' % (self.__tagClass, self.__tagFormat, self.__tagId)
+        return '<%s object at 0x%x tag %s>' % (self.__class__.__name__, id(self), representation)
+
+    def __eq__(self, other):
+        return self.__tagClassId == other
+
+    def __ne__(self, other):
+        return self.__tagClassId != other
+
+    def __lt__(self, other):
+        return self.__tagClassId < other
+
+    def __le__(self, other):
+        return self.__tagClassId <= other
+
+    def __gt__(self, other):
+        return self.__tagClassId > other
+
+    def __ge__(self, other):
+        return self.__tagClassId >= other
+
+    def __hash__(self):
+        return self.__hash
+
+    def __getitem__(self, idx):
+        if idx == 0:
+            return self.__tagClass
+        elif idx == 1:
+            return self.__tagFormat
+        elif idx == 2:
+            return self.__tagId
+        else:
+            raise IndexError()
+
+    def __iter__(self):
+        yield self.__tagClass
+        yield self.__tagFormat
+        yield self.__tagId
+
+    def __and__(self, otherTag):
+        return self.__class__(self.__tagClass & otherTag.tagClass,
+                              self.__tagFormat & otherTag.tagFormat,
+                              self.__tagId & otherTag.tagId)
+
+    def __or__(self, otherTag):
+        return self.__class__(self.__tagClass | otherTag.tagClass,
+                              self.__tagFormat | otherTag.tagFormat,
+                              self.__tagId | otherTag.tagId)
+
+    @property
+    def tagClass(self):
+        """ASN.1 tag class
+
+        Returns
+        -------
+        : :py:class:`int`
+            Tag class
+        """
+        return self.__tagClass
+
+    @property
+    def tagFormat(self):
+        """ASN.1 tag format
+
+        Returns
+        -------
+        : :py:class:`int`
+            Tag format
+        """
+        return self.__tagFormat
+
+    @property
+    def tagId(self):
+        """ASN.1 tag ID
+
+        Returns
+        -------
+        : :py:class:`int`
+            Tag ID
+        """
+        return self.__tagId
+
+
+class TagSet(object):
+    """Create a collection of ASN.1 tags
+
+    Represents a combination of :class:`~pyasn1.type.tag.Tag` objects
+    that can be attached to a ASN.1 type to make types distinguishable
+    from each other.
+
+    *TagSet* objects are immutable and duck-type Python :class:`tuple` objects
+    holding arbitrary number of :class:`~pyasn1.type.tag.Tag` objects.
+
+    Parameters
+    ----------
+    baseTag: :class:`~pyasn1.type.tag.Tag`
+        Base *Tag* object. This tag survives IMPLICIT tagging.
+
+    *superTags: :class:`~pyasn1.type.tag.Tag`
+        Additional *Tag* objects taking part in subtyping.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class OrderNumber(NumericString):
+            '''
+            ASN.1 specification
+
+            Order-number ::=
+                [APPLICATION 5] IMPLICIT NumericString
+            '''
+            tagSet = NumericString.tagSet.tagImplicitly(
+                Tag(tagClassApplication, tagFormatSimple, 5)
+            )
+
+        orderNumber = OrderNumber('1234')
+    """
+    def __init__(self, baseTag=(), *superTags):
+        self.__baseTag = baseTag
+        self.__superTags = superTags
+        self.__superTagsClassId = tuple(
+            [(superTag.tagClass, superTag.tagId) for superTag in superTags]
+        )
+        self.__lenOfSuperTags = len(superTags)
+        self.__hash = hash(self.__superTagsClassId)
+
+    def __repr__(self):
+        representation = '-'.join(['%s:%s:%s' % (x.tagClass, x.tagFormat, x.tagId)
+                                   for x in self.__superTags])
+        if representation:
+            representation = 'tags ' + representation
+        else:
+            representation = 'untagged'
+
+        return '<%s object at 0x%x %s>' % (self.__class__.__name__, id(self), representation)
+
+    def __add__(self, superTag):
+        return self.__class__(self.__baseTag, *self.__superTags + (superTag,))
+
+    def __radd__(self, superTag):
+        return self.__class__(self.__baseTag, *(superTag,) + self.__superTags)
+
+    def __getitem__(self, i):
+        if i.__class__ is slice:
+            return self.__class__(self.__baseTag, *self.__superTags[i])
+        else:
+            return self.__superTags[i]
+
+    def __eq__(self, other):
+        return self.__superTagsClassId == other
+
+    def __ne__(self, other):
+        return self.__superTagsClassId != other
+
+    def __lt__(self, other):
+        return self.__superTagsClassId < other
+
+    def __le__(self, other):
+        return self.__superTagsClassId <= other
+
+    def __gt__(self, other):
+        return self.__superTagsClassId > other
+
+    def __ge__(self, other):
+        return self.__superTagsClassId >= other
+
+    def __hash__(self):
+        return self.__hash
+
+    def __len__(self):
+        return self.__lenOfSuperTags
+
+    @property
+    def baseTag(self):
+        """Return base ASN.1 tag
+
+        Returns
+        -------
+        : :class:`~pyasn1.type.tag.Tag`
+            Base tag of this *TagSet*
+        """
+        return self.__baseTag
+
+    @property
+    def superTags(self):
+        """Return ASN.1 tags
+
+        Returns
+        -------
+        : :py:class:`tuple`
+            Tuple of :class:`~pyasn1.type.tag.Tag` objects that this *TagSet* contains
+        """
+        return self.__superTags
+
+    def tagExplicitly(self, superTag):
+        """Return explicitly tagged *TagSet*
+
+        Create a new *TagSet* representing callee *TagSet* explicitly tagged
+        with passed tag(s). With explicit tagging mode, new tags are appended
+        to existing tag(s).
+
+        Parameters
+        ----------
+        superTag: :class:`~pyasn1.type.tag.Tag`
+            *Tag* object to tag this *TagSet*
+
+        Returns
+        -------
+        : :class:`~pyasn1.type.tag.TagSet`
+            New *TagSet* object
+        """
+        if superTag.tagClass == tagClassUniversal:
+            raise error.PyAsn1Error("Can't tag with UNIVERSAL class tag")
+        if superTag.tagFormat != tagFormatConstructed:
+            superTag = Tag(superTag.tagClass, tagFormatConstructed, superTag.tagId)
+        return self + superTag
+
+    def tagImplicitly(self, superTag):
+        """Return implicitly tagged *TagSet*
+
+        Create a new *TagSet* representing callee *TagSet* implicitly tagged
+        with passed tag(s). With implicit tagging mode, new tag(s) replace the
+        last existing tag.
+
+        Parameters
+        ----------
+        superTag: :class:`~pyasn1.type.tag.Tag`
+            *Tag* object to tag this *TagSet*
+
+        Returns
+        -------
+        : :class:`~pyasn1.type.tag.TagSet`
+            New *TagSet* object
+        """
+        if self.__superTags:
+            superTag = Tag(superTag.tagClass, self.__superTags[-1].tagFormat, superTag.tagId)
+        return self[:-1] + superTag
+
+    def isSuperTagSetOf(self, tagSet):
+        """Test type relationship against given *TagSet*
+
+        The callee is considered to be a supertype of given *TagSet*
+        tag-wise if all tags in *TagSet* are present in the callee and
+        they are in the same order.
+
+        Parameters
+        ----------
+        tagSet: :class:`~pyasn1.type.tag.TagSet`
+            *TagSet* object to evaluate against the callee
+
+        Returns
+        -------
+        : :py:class:`bool`
+            `True` if callee is a supertype of *tagSet*
+        """
+        if len(tagSet) < self.__lenOfSuperTags:
+            return False
+        return self.__superTags == tagSet[:self.__lenOfSuperTags]
+
+    # Backward compatibility
+
+    def getBaseTag(self):
+        return self.__baseTag
+
+def initTagSet(tag):
+    return TagSet(tag, tag)
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/tagmap.py b/venv/lib/python3.5/site-packages/pyasn1/type/tagmap.py
new file mode 100644
index 0000000..2e266b6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/tagmap.py
@@ -0,0 +1,96 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+from pyasn1 import error
+
+__all__ = ['TagMap']
+
+
+class TagMap(object):
+    """Map *TagSet* objects to ASN.1 types
+
+    Create an object mapping *TagSet* object to ASN.1 type.
+
+    *TagMap* objects are immutable and duck-type read-only Python
+    :class:`dict` objects holding *TagSet* objects as keys and ASN.1
+    type objects as values.
+
+    Parameters
+    ----------
+    presentTypes: :py:class:`dict`
+        Map of :class:`~pyasn1.type.tag.TagSet` to ASN.1 objects considered
+        as being unconditionally present in the *TagMap*.
+
+    skipTypes: :py:class:`dict`
+        A collection of :class:`~pyasn1.type.tag.TagSet` objects considered
+        as absent in the *TagMap* even when *defaultType* is present.
+
+    defaultType: ASN.1 type object
+        An ASN.1 type object callee *TagMap* returns for any *TagSet* key not present
+        in *presentTypes* (unless given key is present in *skipTypes*).
+    """
+    def __init__(self, presentTypes=None, skipTypes=None, defaultType=None):
+        self.__presentTypes = presentTypes or {}
+        self.__skipTypes = skipTypes or {}
+        self.__defaultType = defaultType
+
+    def __contains__(self, tagSet):
+        return (tagSet in self.__presentTypes or
+                self.__defaultType is not None and tagSet not in self.__skipTypes)
+
+    def __getitem__(self, tagSet):
+        try:
+            return self.__presentTypes[tagSet]
+        except KeyError:
+            if self.__defaultType is None:
+                raise KeyError()
+            elif tagSet in self.__skipTypes:
+                raise error.PyAsn1Error('Key in negative map')
+            else:
+                return self.__defaultType
+
+    def __iter__(self):
+        return iter(self.__presentTypes)
+
+    def __repr__(self):
+        representation = '%s object at 0x%x' % (self.__class__.__name__, id(self))
+
+        if self.__presentTypes:
+            representation += ' present %s' % repr(self.__presentTypes)
+
+        if self.__skipTypes:
+            representation += ' skip %s' % repr(self.__skipTypes)
+
+        if self.__defaultType is not None:
+            representation += ' default %s' % repr(self.__defaultType)
+
+        return '<%s>' % representation
+
+    @property
+    def presentTypes(self):
+        """Return *TagSet* to ASN.1 type map present in callee *TagMap*"""
+        return self.__presentTypes
+
+    @property
+    def skipTypes(self):
+        """Return *TagSet* collection unconditionally absent in callee *TagMap*"""
+        return self.__skipTypes
+
+    @property
+    def defaultType(self):
+        """Return default ASN.1 type being returned for any missing *TagSet*"""
+        return self.__defaultType
+
+    # Backward compatibility
+
+    def getPosMap(self):
+        return self.presentTypes
+
+    def getNegMap(self):
+        return self.skipTypes
+
+    def getDef(self):
+        return self.defaultType
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/univ.py b/venv/lib/python3.5/site-packages/pyasn1/type/univ.py
new file mode 100644
index 0000000..3aaa300
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/univ.py
@@ -0,0 +1,3061 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import math
+import sys
+
+from pyasn1 import error
+from pyasn1.codec.ber import eoo
+from pyasn1.compat import binary
+from pyasn1.compat import integer
+from pyasn1.compat import octets
+from pyasn1.type import base
+from pyasn1.type import constraint
+from pyasn1.type import namedtype
+from pyasn1.type import namedval
+from pyasn1.type import tag
+from pyasn1.type import tagmap
+
+NoValue = base.NoValue
+noValue = NoValue()
+
+__all__ = ['Integer', 'Boolean', 'BitString', 'OctetString', 'Null',
+           'ObjectIdentifier', 'Real', 'Enumerated',
+           'SequenceOfAndSetOfBase', 'SequenceOf', 'SetOf',
+           'SequenceAndSetBase', 'Sequence', 'Set', 'Choice', 'Any',
+           'NoValue', 'noValue']
+
+# "Simple" ASN.1 types (yet incomplete)
+
+
+class Integer(base.AbstractSimpleAsn1Item):
+    """Create |ASN.1| type or object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`int` objects.
+
+    Keyword Args
+    ------------
+    value: :class:`int`, :class:`str` or |ASN.1| object
+        Python integer or string literal or |ASN.1| class instance.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    namedValues: :py:class:`~pyasn1.type.namedval.NamedValues`
+        Object representing non-default symbolic aliases for numbers
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class ErrorCode(Integer):
+            '''
+            ASN.1 specification:
+
+            ErrorCode ::=
+                INTEGER { disk-full(1), no-disk(-1),
+                          disk-not-formatted(2) }
+
+            error ErrorCode ::= disk-full
+            '''
+            namedValues = NamedValues(
+                ('disk-full', 1), ('no-disk', -1),
+                ('disk-not-formatted', 2)
+            )
+
+        error = ErrorCode('disk-full')
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x02)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.namedval.NamedValues` object
+    #: representing symbolic aliases for numbers
+    namedValues = namedval.NamedValues()
+
+    # Optimization for faster codec lookup
+    typeId = base.AbstractSimpleAsn1Item.getTypeId()
+
+    def __init__(self, value=noValue, **kwargs):
+        if 'namedValues' not in kwargs:
+            kwargs['namedValues'] = self.namedValues
+
+        base.AbstractSimpleAsn1Item.__init__(self, value, **kwargs)
+
+    def __and__(self, value):
+        return self.clone(self._value & value)
+
+    def __rand__(self, value):
+        return self.clone(value & self._value)
+
+    def __or__(self, value):
+        return self.clone(self._value | value)
+
+    def __ror__(self, value):
+        return self.clone(value | self._value)
+
+    def __xor__(self, value):
+        return self.clone(self._value ^ value)
+
+    def __rxor__(self, value):
+        return self.clone(value ^ self._value)
+
+    def __lshift__(self, value):
+        return self.clone(self._value << value)
+
+    def __rshift__(self, value):
+        return self.clone(self._value >> value)
+
+    def __add__(self, value):
+        return self.clone(self._value + value)
+
+    def __radd__(self, value):
+        return self.clone(value + self._value)
+
+    def __sub__(self, value):
+        return self.clone(self._value - value)
+
+    def __rsub__(self, value):
+        return self.clone(value - self._value)
+
+    def __mul__(self, value):
+        return self.clone(self._value * value)
+
+    def __rmul__(self, value):
+        return self.clone(value * self._value)
+
+    def __mod__(self, value):
+        return self.clone(self._value % value)
+
+    def __rmod__(self, value):
+        return self.clone(value % self._value)
+
+    def __pow__(self, value, modulo=None):
+        return self.clone(pow(self._value, value, modulo))
+
+    def __rpow__(self, value):
+        return self.clone(pow(value, self._value))
+
+    def __floordiv__(self, value):
+        return self.clone(self._value // value)
+
+    def __rfloordiv__(self, value):
+        return self.clone(value // self._value)
+
+    if sys.version_info[0] <= 2:
+        def __div__(self, value):
+            if isinstance(value, float):
+                return Real(self._value / value)
+            else:
+                return self.clone(self._value / value)
+
+        def __rdiv__(self, value):
+            if isinstance(value, float):
+                return Real(value / self._value)
+            else:
+                return self.clone(value / self._value)
+    else:
+        def __truediv__(self, value):
+            return Real(self._value / value)
+
+        def __rtruediv__(self, value):
+            return Real(value / self._value)
+
+        def __divmod__(self, value):
+            return self.clone(divmod(self._value, value))
+
+        def __rdivmod__(self, value):
+            return self.clone(divmod(value, self._value))
+
+        __hash__ = base.AbstractSimpleAsn1Item.__hash__
+
+    def __int__(self):
+        return int(self._value)
+
+    if sys.version_info[0] <= 2:
+        def __long__(self):
+            return long(self._value)
+
+    def __float__(self):
+        return float(self._value)
+
+    def __abs__(self):
+        return self.clone(abs(self._value))
+
+    def __index__(self):
+        return int(self._value)
+
+    def __pos__(self):
+        return self.clone(+self._value)
+
+    def __neg__(self):
+        return self.clone(-self._value)
+
+    def __invert__(self):
+        return self.clone(~self._value)
+
+    def __round__(self, n=0):
+        r = round(self._value, n)
+        if n:
+            return self.clone(r)
+        else:
+            return r
+
+    def __floor__(self):
+        return math.floor(self._value)
+
+    def __ceil__(self):
+        return math.ceil(self._value)
+
+    if sys.version_info[0:2] > (2, 5):
+        def __trunc__(self):
+            return self.clone(math.trunc(self._value))
+
+    def __lt__(self, value):
+        return self._value < value
+
+    def __le__(self, value):
+        return self._value <= value
+
+    def __eq__(self, value):
+        return self._value == value
+
+    def __ne__(self, value):
+        return self._value != value
+
+    def __gt__(self, value):
+        return self._value > value
+
+    def __ge__(self, value):
+        return self._value >= value
+
+    def prettyIn(self, value):
+        try:
+            return int(value)
+
+        except ValueError:
+            try:
+                return self.namedValues[value]
+
+            except KeyError:
+                raise error.PyAsn1Error(
+                    'Can\'t coerce %r into integer: %s' % (value, sys.exc_info()[1])
+                )
+
+    def prettyOut(self, value):
+        try:
+            return str(self.namedValues[value])
+
+        except KeyError:
+            return str(value)
+
+    # backward compatibility
+
+    def getNamedValues(self):
+        return self.namedValues
+
+
+class Boolean(Integer):
+    """Create |ASN.1| type or object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`int` objects.
+
+    Keyword Args
+    ------------
+    value: :class:`int`, :class:`str` or |ASN.1| object
+        Python integer or boolean or string literal or |ASN.1| class instance.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    namedValues: :py:class:`~pyasn1.type.namedval.NamedValues`
+        Object representing non-default symbolic aliases for numbers
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class RoundResult(Boolean):
+            '''
+            ASN.1 specification:
+
+            RoundResult ::= BOOLEAN
+
+            ok RoundResult ::= TRUE
+            ko RoundResult ::= FALSE
+            '''
+        ok = RoundResult(True)
+        ko = RoundResult(False)
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x01),
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = Integer.subtypeSpec + constraint.SingleValueConstraint(0, 1)
+
+    #: Default :py:class:`~pyasn1.type.namedval.NamedValues` object
+    #: representing symbolic aliases for numbers
+    namedValues = namedval.NamedValues(('False', 0), ('True', 1))
+
+    # Optimization for faster codec lookup
+    typeId = Integer.getTypeId()
+
+if sys.version_info[0] < 3:
+    SizedIntegerBase = long
+else:
+    SizedIntegerBase = int
+
+
+class SizedInteger(SizedIntegerBase):
+    bitLength = leadingZeroBits = None
+
+    def setBitLength(self, bitLength):
+        self.bitLength = bitLength
+        self.leadingZeroBits = max(bitLength - integer.bitLength(self), 0)
+        return self
+
+    def __len__(self):
+        if self.bitLength is None:
+            self.setBitLength(integer.bitLength(self))
+
+        return self.bitLength
+
+
+class BitString(base.AbstractSimpleAsn1Item):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type both Python :class:`tuple` (as a tuple
+    of bits) and :class:`int` objects.
+
+    Keyword Args
+    ------------
+    value: :class:`int`, :class:`str` or |ASN.1| object
+        Python integer or string literal representing binary or hexadecimal
+        number or sequence of integer bits or |ASN.1| object.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    namedValues: :py:class:`~pyasn1.type.namedval.NamedValues`
+        Object representing non-default symbolic aliases for numbers
+
+    binValue: :py:class:`str`
+        Binary string initializer to use instead of the *value*.
+        Example: '10110011'.
+
+    hexValue: :py:class:`str`
+        Hexadecimal string initializer to use instead of the *value*.
+        Example: 'DEADBEEF'.
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Rights(BitString):
+            '''
+            ASN.1 specification:
+
+            Rights ::= BIT STRING { user-read(0), user-write(1),
+                                    group-read(2), group-write(3),
+                                    other-read(4), other-write(5) }
+
+            group1 Rights ::= { group-read, group-write }
+            group2 Rights ::= '0011'B
+            group3 Rights ::= '3'H
+            '''
+            namedValues = NamedValues(
+                ('user-read', 0), ('user-write', 1),
+                ('group-read', 2), ('group-write', 3),
+                ('other-read', 4), ('other-write', 5)
+            )
+
+        group1 = Rights(('group-read', 'group-write'))
+        group2 = Rights('0011')
+        group3 = Rights(0x3)
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x03)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.namedval.NamedValues` object
+    #: representing symbolic aliases for numbers
+    namedValues = namedval.NamedValues()
+
+    # Optimization for faster codec lookup
+    typeId = base.AbstractSimpleAsn1Item.getTypeId()
+
+    defaultBinValue = defaultHexValue = noValue
+
+    def __init__(self, value=noValue, **kwargs):
+        if value is noValue:
+            if kwargs:
+                try:
+                    value = self.fromBinaryString(kwargs.pop('binValue'), internalFormat=True)
+
+                except KeyError:
+                    pass
+
+                try:
+                    value = self.fromHexString(kwargs.pop('hexValue'), internalFormat=True)
+
+                except KeyError:
+                    pass
+
+        if value is noValue:
+            if self.defaultBinValue is not noValue:
+                value = self.fromBinaryString(self.defaultBinValue, internalFormat=True)
+
+            elif self.defaultHexValue is not noValue:
+                value = self.fromHexString(self.defaultHexValue, internalFormat=True)
+
+        if 'namedValues' not in kwargs:
+            kwargs['namedValues'] = self.namedValues
+
+        base.AbstractSimpleAsn1Item.__init__(self, value, **kwargs)
+
+    def __str__(self):
+        return self.asBinary()
+
+    def __eq__(self, other):
+        other = self.prettyIn(other)
+        return self is other or self._value == other and len(self._value) == len(other)
+
+    def __ne__(self, other):
+        other = self.prettyIn(other)
+        return self._value != other or len(self._value) != len(other)
+
+    def __lt__(self, other):
+        other = self.prettyIn(other)
+        return len(self._value) < len(other) or len(self._value) == len(other) and self._value < other
+
+    def __le__(self, other):
+        other = self.prettyIn(other)
+        return len(self._value) <= len(other) or len(self._value) == len(other) and self._value <= other
+
+    def __gt__(self, other):
+        other = self.prettyIn(other)
+        return len(self._value) > len(other) or len(self._value) == len(other) and self._value > other
+
+    def __ge__(self, other):
+        other = self.prettyIn(other)
+        return len(self._value) >= len(other) or len(self._value) == len(other) and self._value >= other
+
+    # Immutable sequence object protocol
+
+    def __len__(self):
+        return len(self._value)
+
+    def __getitem__(self, i):
+        if i.__class__ is slice:
+            return self.clone([self[x] for x in range(*i.indices(len(self)))])
+        else:
+            length = len(self._value) - 1
+            if i > length or i < 0:
+                raise IndexError('bit index out of range')
+            return (self._value >> (length - i)) & 1
+
+    def __iter__(self):
+        length = len(self._value)
+        while length:
+            length -= 1
+            yield (self._value >> length) & 1
+
+    def __reversed__(self):
+        return reversed(tuple(self))
+
+    # arithmetic operators
+
+    def __add__(self, value):
+        value = self.prettyIn(value)
+        return self.clone(SizedInteger(self._value << len(value) | value).setBitLength(len(self._value) + len(value)))
+
+    def __radd__(self, value):
+        value = self.prettyIn(value)
+        return self.clone(SizedInteger(value << len(self._value) | self._value).setBitLength(len(self._value) + len(value)))
+
+    def __mul__(self, value):
+        bitString = self._value
+        while value > 1:
+            bitString <<= len(self._value)
+            bitString |= self._value
+            value -= 1
+        return self.clone(bitString)
+
+    def __rmul__(self, value):
+        return self * value
+
+    def __lshift__(self, count):
+        return self.clone(SizedInteger(self._value << count).setBitLength(len(self._value) + count))
+
+    def __rshift__(self, count):
+        return self.clone(SizedInteger(self._value >> count).setBitLength(max(0, len(self._value) - count)))
+
+    def __int__(self):
+        return self._value
+
+    def __float__(self):
+        return float(self._value)
+
+    if sys.version_info[0] < 3:
+        def __long__(self):
+            return self._value
+
+    def asNumbers(self):
+        """Get |ASN.1| value as a sequence of 8-bit integers.
+
+        If |ASN.1| object length is not a multiple of 8, result
+        will be left-padded with zeros.
+        """
+        return tuple(octets.octs2ints(self.asOctets()))
+
+    def asOctets(self):
+        """Get |ASN.1| value as a sequence of octets.
+
+        If |ASN.1| object length is not a multiple of 8, result
+        will be left-padded with zeros.
+        """
+        return integer.to_bytes(self._value, length=len(self))
+
+    def asInteger(self):
+        """Get |ASN.1| value as a single integer value.
+        """
+        return self._value
+
+    def asBinary(self):
+        """Get |ASN.1| value as a text string of bits.
+        """
+        binString = binary.bin(self._value)[2:]
+        return '0' * (len(self._value) - len(binString)) + binString
+
+    @classmethod
+    def fromHexString(cls, value, internalFormat=False, prepend=None):
+        """Create a |ASN.1| object initialized from the hex string.
+
+        Parameters
+        ----------
+        value: :class:`str`
+            Text string like 'DEADBEEF'
+        """
+        try:
+            value = SizedInteger(value, 16).setBitLength(len(value) * 4)
+
+        except ValueError:
+            raise error.PyAsn1Error('%s.fromHexString() error: %s' % (cls.__name__, sys.exc_info()[1]))
+
+        if prepend is not None:
+            value = SizedInteger(
+                (SizedInteger(prepend) << len(value)) | value
+            ).setBitLength(len(prepend) + len(value))
+
+        if not internalFormat:
+            value = cls(value)
+
+        return value
+
+    @classmethod
+    def fromBinaryString(cls, value, internalFormat=False, prepend=None):
+        """Create a |ASN.1| object initialized from a string of '0' and '1'.
+
+        Parameters
+        ----------
+        value: :class:`str`
+            Text string like '1010111'
+        """
+        try:
+            value = SizedInteger(value or '0', 2).setBitLength(len(value))
+
+        except ValueError:
+            raise error.PyAsn1Error('%s.fromBinaryString() error: %s' % (cls.__name__, sys.exc_info()[1]))
+
+        if prepend is not None:
+            value = SizedInteger(
+                (SizedInteger(prepend) << len(value)) | value
+            ).setBitLength(len(prepend) + len(value))
+
+        if not internalFormat:
+            value = cls(value)
+
+        return value
+
+    @classmethod
+    def fromOctetString(cls, value, internalFormat=False, prepend=None, padding=0):
+        """Create a |ASN.1| object initialized from a string.
+
+        Parameters
+        ----------
+        value: :class:`str` (Py2) or :class:`bytes` (Py3)
+            Text string like '\\\\x01\\\\xff' (Py2) or b'\\\\x01\\\\xff' (Py3)
+        """
+        value = SizedInteger(integer.from_bytes(value) >> padding).setBitLength(len(value) * 8 - padding)
+
+        if prepend is not None:
+            value = SizedInteger(
+                (SizedInteger(prepend) << len(value)) | value
+            ).setBitLength(len(prepend) + len(value))
+
+        if not internalFormat:
+            value = cls(value)
+
+        return value
+
+    def prettyIn(self, value):
+        if isinstance(value, SizedInteger):
+            return value
+        elif octets.isStringType(value):
+            if not value:
+                return SizedInteger(0).setBitLength(0)
+
+            elif value[0] == '\'':  # "'1011'B" -- ASN.1 schema representation (deprecated)
+                if value[-2:] == '\'B':
+                    return self.fromBinaryString(value[1:-2], internalFormat=True)
+                elif value[-2:] == '\'H':
+                    return self.fromHexString(value[1:-2], internalFormat=True)
+                else:
+                    raise error.PyAsn1Error(
+                        'Bad BIT STRING value notation %s' % (value,)
+                    )
+
+            elif self.namedValues and not value.isdigit():  # named bits like 'Urgent, Active'
+                names = [x.strip() for x in value.split(',')]
+
+                try:
+
+                    bitPositions = [self.namedValues[name] for name in names]
+
+                except KeyError:
+                    raise error.PyAsn1Error('unknown bit name(s) in %r' % (names,))
+
+                rightmostPosition = max(bitPositions)
+
+                number = 0
+                for bitPosition in bitPositions:
+                    number |= 1 << (rightmostPosition - bitPosition)
+
+                return SizedInteger(number).setBitLength(rightmostPosition + 1)
+
+            elif value.startswith('0x'):
+                return self.fromHexString(value[2:], internalFormat=True)
+
+            elif value.startswith('0b'):
+                return self.fromBinaryString(value[2:], internalFormat=True)
+
+            else:  # assume plain binary string like '1011'
+                return self.fromBinaryString(value, internalFormat=True)
+
+        elif isinstance(value, (tuple, list)):
+            return self.fromBinaryString(''.join([b and '1' or '0' for b in value]), internalFormat=True)
+
+        elif isinstance(value, BitString):
+            return SizedInteger(value).setBitLength(len(value))
+
+        elif isinstance(value, intTypes):
+            return SizedInteger(value)
+
+        else:
+            raise error.PyAsn1Error(
+                'Bad BitString initializer type \'%s\'' % (value,)
+            )
+
+
+try:
+    # noinspection PyStatementEffect
+    all
+
+except NameError:  # Python 2.4
+    # noinspection PyShadowingBuiltins
+    def all(iterable):
+        for element in iterable:
+            if not element:
+                return False
+        return True
+
+
+class OctetString(base.AbstractSimpleAsn1Item):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python 2 :class:`str` or Python 3 :class:`bytes`.
+    When used in Unicode context, |ASN.1| type assumes "|encoding|" serialisation.
+
+    Keyword Args
+    ------------
+    value: :class:`str`, :class:`bytes` or |ASN.1| object
+        string (Python 2) or bytes (Python 3), alternatively unicode object
+        (Python 2) or string (Python 3) representing character string to be
+        serialised into octets (note `encoding` parameter) or |ASN.1| object.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    encoding: :py:class:`str`
+        Unicode codec ID to encode/decode :class:`unicode` (Python 2) or
+        :class:`str` (Python 3) the payload when |ASN.1| object is used
+        in text string context.
+
+    binValue: :py:class:`str`
+        Binary string initializer to use instead of the *value*.
+        Example: '10110011'.
+
+    hexValue: :py:class:`str`
+        Hexadecimal string initializer to use instead of the *value*.
+        Example: 'DEADBEEF'.
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Icon(OctetString):
+            '''
+            ASN.1 specification:
+
+            Icon ::= OCTET STRING
+
+            icon1 Icon ::= '001100010011001000110011'B
+            icon2 Icon ::= '313233'H
+            '''
+        icon1 = Icon.fromBinaryString('001100010011001000110011')
+        icon2 = Icon.fromHexString('313233')
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x04)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Optimization for faster codec lookup
+    typeId = base.AbstractSimpleAsn1Item.getTypeId()
+
+    defaultBinValue = defaultHexValue = noValue
+    encoding = 'iso-8859-1'
+
+    def __init__(self, value=noValue, **kwargs):
+        if kwargs:
+            if value is noValue:
+                try:
+                    value = self.fromBinaryString(kwargs.pop('binValue'))
+
+                except KeyError:
+                    pass
+
+                try:
+                    value = self.fromHexString(kwargs.pop('hexValue'))
+
+                except KeyError:
+                    pass
+
+        if value is noValue:
+            if self.defaultBinValue is not noValue:
+                value = self.fromBinaryString(self.defaultBinValue)
+
+            elif self.defaultHexValue is not noValue:
+                value = self.fromHexString(self.defaultHexValue)
+
+        if 'encoding' not in kwargs:
+            kwargs['encoding'] = self.encoding
+
+        base.AbstractSimpleAsn1Item.__init__(self, value, **kwargs)
+
+    if sys.version_info[0] <= 2:
+        def prettyIn(self, value):
+            if isinstance(value, str):
+                return value
+            elif isinstance(value, unicode):
+                try:
+                    return value.encode(self.encoding)
+                except (LookupError, UnicodeEncodeError):
+                    raise error.PyAsn1Error(
+                        "Can't encode string '%s' with codec %s" % (value, self.encoding)
+                    )
+            elif isinstance(value, (tuple, list)):
+                try:
+                    return ''.join([chr(x) for x in value])
+                except ValueError:
+                    raise error.PyAsn1Error(
+                        "Bad %s initializer '%s'" % (self.__class__.__name__, value)
+                    )
+            else:
+                return str(value)
+
+        def __str__(self):
+            return str(self._value)
+
+        def __unicode__(self):
+            try:
+                return self._value.decode(self.encoding)
+
+            except UnicodeDecodeError:
+                raise error.PyAsn1Error(
+                    "Can't decode string '%s' with codec %s" % (self._value, self.encoding)
+                )
+
+        def asOctets(self):
+            return str(self._value)
+
+        def asNumbers(self):
+            return tuple([ord(x) for x in self._value])
+
+    else:
+        def prettyIn(self, value):
+            if isinstance(value, bytes):
+                return value
+            elif isinstance(value, str):
+                try:
+                    return value.encode(self.encoding)
+                except UnicodeEncodeError:
+                    raise error.PyAsn1Error(
+                        "Can't encode string '%s' with '%s' codec" % (value, self.encoding)
+                    )
+            elif isinstance(value, OctetString):  # a shortcut, bytes() would work the same way
+                return value.asOctets()
+            elif isinstance(value, base.AbstractSimpleAsn1Item):  # this mostly targets Integer objects
+                return self.prettyIn(str(value))
+            elif isinstance(value, (tuple, list)):
+                return self.prettyIn(bytes(value))
+            else:
+                return bytes(value)
+
+        def __str__(self):
+            try:
+                return self._value.decode(self.encoding)
+
+            except UnicodeDecodeError:
+                raise error.PyAsn1Error(
+                    "Can't decode string '%s' with '%s' codec at '%s'" % (self._value, self.encoding, self.__class__.__name__)
+                )
+
+        def __bytes__(self):
+            return bytes(self._value)
+
+        def asOctets(self):
+            return bytes(self._value)
+
+        def asNumbers(self):
+            return tuple(self._value)
+
+    #
+    # Normally, `.prettyPrint()` is called from `__str__()`. Historically,
+    # OctetString.prettyPrint() used to return hexified payload
+    # representation in cases when non-printable content is present. At the
+    # same time `str()` used to produce either octet-stream (Py2) or
+    # text (Py3) representations.
+    #
+    # Therefore `OctetString.__str__()` -> `.prettyPrint()` call chain is
+    # reversed to preserve the original behaviour.
+    #
+    # Eventually we should deprecate `.prettyPrint()` / `.prettyOut()` harness
+    # and end up with just `__str__()` producing hexified representation while
+    # both text and octet-stream representation should only be requested via
+    # the `.asOctets()` method.
+    #
+    # Note: ASN.1 OCTET STRING is never mean to contain text!
+    #
+
+    def prettyOut(self, value):
+        return value
+
+    def prettyPrint(self, scope=0):
+        # first see if subclass has its own .prettyOut()
+        value = self.prettyOut(self._value)
+
+        if value is not self._value:
+            return value
+
+        numbers = self.asNumbers()
+
+        for x in numbers:
+            # hexify if needed
+            if x < 32 or x > 126:
+                return '0x' + ''.join(('%.2x' % x for x in numbers))
+        else:
+            # this prevents infinite recursion
+            return OctetString.__str__(self)
+
+    @staticmethod
+    def fromBinaryString(value):
+        """Create a |ASN.1| object initialized from a string of '0' and '1'.
+
+        Parameters
+        ----------
+        value: :class:`str`
+            Text string like '1010111'
+        """
+        bitNo = 8
+        byte = 0
+        r = []
+        for v in value:
+            if bitNo:
+                bitNo -= 1
+            else:
+                bitNo = 7
+                r.append(byte)
+                byte = 0
+            if v in ('0', '1'):
+                v = int(v)
+            else:
+                raise error.PyAsn1Error(
+                    'Non-binary OCTET STRING initializer %s' % (v,)
+                )
+            byte |= v << bitNo
+
+        r.append(byte)
+
+        return octets.ints2octs(r)
+
+    @staticmethod
+    def fromHexString(value):
+        """Create a |ASN.1| object initialized from the hex string.
+
+        Parameters
+        ----------
+        value: :class:`str`
+            Text string like 'DEADBEEF'
+        """
+        r = []
+        p = []
+        for v in value:
+            if p:
+                r.append(int(p + v, 16))
+                p = None
+            else:
+                p = v
+        if p:
+            r.append(int(p + '0', 16))
+
+        return octets.ints2octs(r)
+
+    # Immutable sequence object protocol
+
+    def __len__(self):
+        return len(self._value)
+
+    def __getitem__(self, i):
+        if i.__class__ is slice:
+            return self.clone(self._value[i])
+        else:
+            return self._value[i]
+
+    def __iter__(self):
+        return iter(self._value)
+
+    def __contains__(self, value):
+        return value in self._value
+
+    def __add__(self, value):
+        return self.clone(self._value + self.prettyIn(value))
+
+    def __radd__(self, value):
+        return self.clone(self.prettyIn(value) + self._value)
+
+    def __mul__(self, value):
+        return self.clone(self._value * value)
+
+    def __rmul__(self, value):
+        return self * value
+
+    def __int__(self):
+        return int(self._value)
+
+    def __float__(self):
+        return float(self._value)
+
+    def __reversed__(self):
+        return reversed(self._value)
+
+
+class Null(OctetString):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`str` objects (always empty).
+
+    Keyword Args
+    ------------
+    value: :class:`str` or :py:class:`~pyasn1.type.univ.Null` object
+        Python empty string literal or any object that evaluates to `False`
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Ack(Null):
+            '''
+            ASN.1 specification:
+
+            Ack ::= NULL
+            '''
+        ack = Ack('')
+    """
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x05)
+    )
+    subtypeSpec = OctetString.subtypeSpec + constraint.SingleValueConstraint(octets.str2octs(''))
+
+    # Optimization for faster codec lookup
+    typeId = OctetString.getTypeId()
+
+    def prettyIn(self, value):
+        if value:
+            return value
+
+        return octets.str2octs('')
+
+if sys.version_info[0] <= 2:
+    intTypes = (int, long)
+else:
+    intTypes = (int,)
+
+numericTypes = intTypes + (float,)
+
+
+class ObjectIdentifier(base.AbstractSimpleAsn1Item):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`tuple` objects (tuple of non-negative integers).
+
+    Keyword Args
+    ------------
+    value: :class:`tuple`, :class:`str` or |ASN.1| object
+        Python sequence of :class:`int` or string literal or |ASN.1| object.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class ID(ObjectIdentifier):
+            '''
+            ASN.1 specification:
+
+            ID ::= OBJECT IDENTIFIER
+
+            id-edims ID ::= { joint-iso-itu-t mhs-motif(6) edims(7) }
+            id-bp ID ::= { id-edims 11 }
+            '''
+        id_edims = ID('2.6.7')
+        id_bp = id_edims + (11,)
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x06)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Optimization for faster codec lookup
+    typeId = base.AbstractSimpleAsn1Item.getTypeId()
+
+    def __add__(self, other):
+        return self.clone(self._value + other)
+
+    def __radd__(self, other):
+        return self.clone(other + self._value)
+
+    def asTuple(self):
+        return self._value
+
+    # Sequence object protocol
+
+    def __len__(self):
+        return len(self._value)
+
+    def __getitem__(self, i):
+        if i.__class__ is slice:
+            return self.clone(self._value[i])
+        else:
+            return self._value[i]
+
+    def __iter__(self):
+        return iter(self._value)
+
+    def __contains__(self, value):
+        return value in self._value
+
+    def index(self, suboid):
+        return self._value.index(suboid)
+
+    def isPrefixOf(self, other):
+        """Indicate if this |ASN.1| object is a prefix of other |ASN.1| object.
+
+        Parameters
+        ----------
+        other: |ASN.1| object
+            |ASN.1| object
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`True` if this |ASN.1| object is a parent (e.g. prefix) of the other |ASN.1| object
+            or :class:`False` otherwise.
+        """
+        l = len(self)
+        if l <= len(other):
+            if self._value[:l] == other[:l]:
+                return True
+        return False
+
+    def prettyIn(self, value):
+        if isinstance(value, ObjectIdentifier):
+            return tuple(value)
+        elif octets.isStringType(value):
+            if '-' in value:
+                raise error.PyAsn1Error(
+                    'Malformed Object ID %s at %s: %s' % (value, self.__class__.__name__, sys.exc_info()[1])
+                )
+            try:
+                return tuple([int(subOid) for subOid in value.split('.') if subOid])
+            except ValueError:
+                raise error.PyAsn1Error(
+                    'Malformed Object ID %s at %s: %s' % (value, self.__class__.__name__, sys.exc_info()[1])
+                )
+
+        try:
+            tupleOfInts = tuple([int(subOid) for subOid in value if subOid >= 0])
+
+        except (ValueError, TypeError):
+            raise error.PyAsn1Error(
+                'Malformed Object ID %s at %s: %s' % (value, self.__class__.__name__, sys.exc_info()[1])
+            )
+
+        if len(tupleOfInts) == len(value):
+            return tupleOfInts
+
+        raise error.PyAsn1Error('Malformed Object ID %s at %s' % (value, self.__class__.__name__))
+
+    def prettyOut(self, value):
+        return '.'.join([str(x) for x in value])
+
+
+class Real(base.AbstractSimpleAsn1Item):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`float` objects.
+    Additionally, |ASN.1| objects behave like a :class:`tuple` in which case its
+    elements are mantissa, base and exponent.
+
+    Keyword Args
+    ------------
+    value: :class:`tuple`, :class:`float` or |ASN.1| object
+        Python sequence of :class:`int` (representing mantissa, base and
+        exponent) or float instance or *Real* class instance.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Pi(Real):
+            '''
+            ASN.1 specification:
+
+            Pi ::= REAL
+
+            pi Pi ::= { mantissa 314159, base 10, exponent -5 }
+
+            '''
+        pi = Pi((314159, 10, -5))
+    """
+    binEncBase = None  # binEncBase = 16 is recommended for large numbers
+
+    try:
+        _plusInf = float('inf')
+        _minusInf = float('-inf')
+        _inf = _plusInf, _minusInf
+
+    except ValueError:
+        # Infinity support is platform and Python dependent
+        _plusInf = _minusInf = None
+        _inf = ()
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x09)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Optimization for faster codec lookup
+    typeId = base.AbstractSimpleAsn1Item.getTypeId()
+
+    @staticmethod
+    def __normalizeBase10(value):
+        m, b, e = value
+        while m and m % 10 == 0:
+            m /= 10
+            e += 1
+        return m, b, e
+
+    def prettyIn(self, value):
+        if isinstance(value, tuple) and len(value) == 3:
+            if (not isinstance(value[0], numericTypes) or
+                    not isinstance(value[1], intTypes) or
+                    not isinstance(value[2], intTypes)):
+                raise error.PyAsn1Error('Lame Real value syntax: %s' % (value,))
+            if (isinstance(value[0], float) and
+                    self._inf and value[0] in self._inf):
+                return value[0]
+            if value[1] not in (2, 10):
+                raise error.PyAsn1Error(
+                    'Prohibited base for Real value: %s' % (value[1],)
+                )
+            if value[1] == 10:
+                value = self.__normalizeBase10(value)
+            return value
+        elif isinstance(value, intTypes):
+            return self.__normalizeBase10((value, 10, 0))
+        elif isinstance(value, float) or octets.isStringType(value):
+            if octets.isStringType(value):
+                try:
+                    value = float(value)
+                except ValueError:
+                    raise error.PyAsn1Error(
+                        'Bad real value syntax: %s' % (value,)
+                    )
+            if self._inf and value in self._inf:
+                return value
+            else:
+                e = 0
+                while int(value) != value:
+                    value *= 10
+                    e -= 1
+                return self.__normalizeBase10((int(value), 10, e))
+        elif isinstance(value, Real):
+            return tuple(value)
+        raise error.PyAsn1Error(
+            'Bad real value syntax: %s' % (value,)
+        )
+
+    def prettyPrint(self, scope=0):
+        try:
+            return self.prettyOut(float(self))
+
+        except OverflowError:
+            return '<overflow>'
+
+    @property
+    def isPlusInf(self):
+        """Indicate PLUS-INFINITY object value
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`True` if calling object represents plus infinity
+            or :class:`False` otherwise.
+
+        """
+        return self._value == self._plusInf
+
+    @property
+    def isMinusInf(self):
+        """Indicate MINUS-INFINITY object value
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`True` if calling object represents minus infinity
+            or :class:`False` otherwise.
+        """
+        return self._value == self._minusInf
+
+    @property
+    def isInf(self):
+        return self._value in self._inf
+
+    def __add__(self, value):
+        return self.clone(float(self) + value)
+
+    def __radd__(self, value):
+        return self + value
+
+    def __mul__(self, value):
+        return self.clone(float(self) * value)
+
+    def __rmul__(self, value):
+        return self * value
+
+    def __sub__(self, value):
+        return self.clone(float(self) - value)
+
+    def __rsub__(self, value):
+        return self.clone(value - float(self))
+
+    def __mod__(self, value):
+        return self.clone(float(self) % value)
+
+    def __rmod__(self, value):
+        return self.clone(value % float(self))
+
+    def __pow__(self, value, modulo=None):
+        return self.clone(pow(float(self), value, modulo))
+
+    def __rpow__(self, value):
+        return self.clone(pow(value, float(self)))
+
+    if sys.version_info[0] <= 2:
+        def __div__(self, value):
+            return self.clone(float(self) / value)
+
+        def __rdiv__(self, value):
+            return self.clone(value / float(self))
+    else:
+        def __truediv__(self, value):
+            return self.clone(float(self) / value)
+
+        def __rtruediv__(self, value):
+            return self.clone(value / float(self))
+
+        def __divmod__(self, value):
+            return self.clone(float(self) // value)
+
+        def __rdivmod__(self, value):
+            return self.clone(value // float(self))
+
+    def __int__(self):
+        return int(float(self))
+
+    if sys.version_info[0] <= 2:
+        def __long__(self):
+            return long(float(self))
+
+    def __float__(self):
+        if self._value in self._inf:
+            return self._value
+        else:
+            return float(
+                self._value[0] * pow(self._value[1], self._value[2])
+            )
+
+    def __abs__(self):
+        return self.clone(abs(float(self)))
+
+    def __pos__(self):
+        return self.clone(+float(self))
+
+    def __neg__(self):
+        return self.clone(-float(self))
+
+    def __round__(self, n=0):
+        r = round(float(self), n)
+        if n:
+            return self.clone(r)
+        else:
+            return r
+
+    def __floor__(self):
+        return self.clone(math.floor(float(self)))
+
+    def __ceil__(self):
+        return self.clone(math.ceil(float(self)))
+
+    if sys.version_info[0:2] > (2, 5):
+        def __trunc__(self):
+            return self.clone(math.trunc(float(self)))
+
+    def __lt__(self, value):
+        return float(self) < value
+
+    def __le__(self, value):
+        return float(self) <= value
+
+    def __eq__(self, value):
+        return float(self) == value
+
+    def __ne__(self, value):
+        return float(self) != value
+
+    def __gt__(self, value):
+        return float(self) > value
+
+    def __ge__(self, value):
+        return float(self) >= value
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return bool(float(self))
+    else:
+        def __bool__(self):
+            return bool(float(self))
+
+        __hash__ = base.AbstractSimpleAsn1Item.__hash__
+
+    def __getitem__(self, idx):
+        if self._value in self._inf:
+            raise error.PyAsn1Error('Invalid infinite value operation')
+        else:
+            return self._value[idx]
+
+    # compatibility stubs
+
+    def isPlusInfinity(self):
+        return self.isPlusInf
+
+    def isMinusInfinity(self):
+        return self.isMinusInf
+
+    def isInfinity(self):
+        return self.isInf
+
+
+class Enumerated(Integer):
+    """Create |ASN.1| type or object.
+
+    |ASN.1| objects are immutable and duck-type Python :class:`int` objects.
+
+    Keyword Args
+    ------------
+    value: :class:`int`, :class:`str` or |ASN.1| object
+        Python integer or string literal or |ASN.1| class instance.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    namedValues: :py:class:`~pyasn1.type.namedval.NamedValues`
+        Object representing non-default symbolic aliases for numbers
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class RadioButton(Enumerated):
+            '''
+            ASN.1 specification:
+
+            RadioButton ::= ENUMERATED { button1(0), button2(1),
+                                         button3(2) }
+
+            selected-by-default RadioButton ::= button1
+            '''
+            namedValues = NamedValues(
+                ('button1', 0), ('button2', 1),
+                ('button3', 2)
+            )
+
+        selected_by_default = RadioButton('button1')
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 0x0A)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Optimization for faster codec lookup
+    typeId = Integer.getTypeId()
+
+    #: Default :py:class:`~pyasn1.type.namedval.NamedValues` object
+    #: representing symbolic aliases for numbers
+    namedValues = namedval.NamedValues()
+
+
+# "Structured" ASN.1 types
+
+class SequenceOfAndSetOfBase(base.AbstractConstructedAsn1Item):
+    """Create |ASN.1| type.
+
+    |ASN.1| objects are mutable and duck-type Python :class:`list` objects.
+
+    Keyword Args
+    ------------
+    componentType : :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+        A pyasn1 object representing ASN.1 type allowed within |ASN.1| type
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    sizeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing collection size constraint
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class LotteryDraw(SequenceOf):  #  SetOf is similar
+            '''
+            ASN.1 specification:
+
+            LotteryDraw ::= SEQUENCE OF INTEGER
+            '''
+            componentType = Integer()
+
+        lotteryDraw = LotteryDraw()
+        lotteryDraw.extend([123, 456, 789])
+    """
+    def __init__(self, *args, **kwargs):
+        # support positional params for backward compatibility
+        if args:
+            for key, value in zip(('componentType', 'tagSet',
+                                   'subtypeSpec', 'sizeSpec'), args):
+                if key in kwargs:
+                    raise error.PyAsn1Error('Conflicting positional and keyword params!')
+                kwargs['componentType'] = value
+
+        base.AbstractConstructedAsn1Item.__init__(self, **kwargs)
+
+    # Python list protocol
+
+    def __getitem__(self, idx):
+        try:
+            return self.getComponentByPosition(idx)
+
+        except error.PyAsn1Error:
+            raise IndexError(sys.exc_info()[1])
+
+    def __setitem__(self, idx, value):
+        try:
+            self.setComponentByPosition(idx, value)
+
+        except error.PyAsn1Error:
+            raise IndexError(sys.exc_info()[1])
+
+    def clear(self):
+        self._componentValues = []
+
+    def append(self, value):
+        self[len(self)] = value
+
+    def count(self, value):
+        return self._componentValues.count(value)
+
+    def extend(self, values):
+        for value in values:
+            self.append(value)
+
+    def index(self, value, start=0, stop=None):
+        if stop is None:
+            stop = len(self)
+        try:
+            return self._componentValues.index(value, start, stop)
+
+        except error.PyAsn1Error:
+            raise ValueError(sys.exc_info()[1])
+
+    def reverse(self):
+        self._componentValues.reverse()
+
+    def sort(self, key=None, reverse=False):
+        self._componentValues.sort(key=key, reverse=reverse)
+
+    def __iter__(self):
+        return iter(self._componentValues)
+
+    def _cloneComponentValues(self, myClone, cloneValueFlag):
+        for idx, componentValue in enumerate(self._componentValues):
+            if componentValue is not noValue:
+                if isinstance(componentValue, base.AbstractConstructedAsn1Item):
+                    myClone.setComponentByPosition(
+                        idx, componentValue.clone(cloneValueFlag=cloneValueFlag)
+                    )
+                else:
+                    myClone.setComponentByPosition(idx, componentValue.clone())
+
+    def getComponentByPosition(self, idx, default=noValue, instantiate=True):
+        """Return |ASN.1| type component value by position.
+
+        Equivalent to Python sequence subscription operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        idx : :class:`int`
+            Component index (zero-based). Must either refer to an existing
+            component or to N+1 component (if *componentType* is set). In the latter
+            case a new component type gets instantiated and appended to the |ASN.1|
+            sequence.
+
+        Keyword Args
+        ------------
+        default: :class:`object`
+            If set and requested component is a schema object, return the `default`
+            object instead of the requested component.
+
+        instantiate: :class:`bool`
+            If `True` (default), inner component will be automatically instantiated.
+            If 'False' either existing component or the `noValue` object will be
+            returned.
+
+        Returns
+        -------
+        : :py:class:`~pyasn1.type.base.PyAsn1Item`
+            Instantiate |ASN.1| component type or return existing component value
+
+        Examples
+        --------
+
+        .. code-block:: python
+
+            # can also be SetOf
+            class MySequenceOf(SequenceOf):
+                componentType = OctetString()
+
+            s = MySequenceOf()
+
+            # returns component #0 with `.isValue` property False
+            s.getComponentByPosition(0)
+
+            # returns None
+            s.getComponentByPosition(0, default=None)
+
+            s.clear()
+
+            # returns noValue
+            s.getComponentByPosition(0, instantiate=False)
+
+            # sets component #0 to OctetString() ASN.1 schema
+            # object and returns it
+            s.getComponentByPosition(0, instantiate=True)
+
+            # sets component #0 to ASN.1 value object
+            s.setComponentByPosition(0, 'ABCD')
+
+            # returns OctetString('ABCD') value object
+            s.getComponentByPosition(0, instantiate=False)
+
+            s.clear()
+
+            # returns noValue
+            s.getComponentByPosition(0, instantiate=False)
+        """
+        try:
+            componentValue = self._componentValues[idx]
+
+        except IndexError:
+            if not instantiate:
+                return default
+
+            self.setComponentByPosition(idx)
+
+            componentValue = self._componentValues[idx]
+
+        if default is noValue or componentValue.isValue:
+            return componentValue
+        else:
+            return default
+
+    def setComponentByPosition(self, idx, value=noValue,
+                               verifyConstraints=True,
+                               matchTags=True,
+                               matchConstraints=True):
+        """Assign |ASN.1| type component by position.
+
+        Equivalent to Python sequence item assignment operation (e.g. `[]`)
+        or list.append() (when idx == len(self)).
+
+        Parameters
+        ----------
+        idx: :class:`int`
+            Component index (zero-based). Must either refer to existing
+            component or to N+1 component. In the latter case a new component
+            type gets instantiated (if *componentType* is set, or given ASN.1
+            object is taken otherwise) and appended to the |ASN.1| sequence.
+
+        Keyword Args
+        ------------
+        value: :class:`object` or :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+            A Python value to initialize |ASN.1| component with (if *componentType* is set)
+            or ASN.1 value object to assign to |ASN.1| component.
+
+        verifyConstraints: :class:`bool`
+             If `False`, skip constraints validation
+
+        matchTags: :class:`bool`
+             If `False`, skip component tags matching
+
+        matchConstraints: :class:`bool`
+             If `False`, skip component constraints matching
+
+        Returns
+        -------
+        self
+
+        Raises
+        ------
+        IndexError:
+            When idx > len(self)
+        """
+        componentType = self.componentType
+
+        try:
+            currentValue = self._componentValues[idx]
+        except IndexError:
+            currentValue = noValue
+
+            if len(self._componentValues) < idx:
+                raise error.PyAsn1Error('Component index out of range')
+
+        if value is noValue:
+            if componentType is not None:
+                value = componentType.clone()
+            elif currentValue is noValue:
+                raise error.PyAsn1Error('Component type not defined')
+        elif not isinstance(value, base.Asn1Item):
+            if componentType is not None and isinstance(componentType, base.AbstractSimpleAsn1Item):
+                value = componentType.clone(value=value)
+            elif currentValue is not noValue and isinstance(currentValue, base.AbstractSimpleAsn1Item):
+                value = currentValue.clone(value=value)
+            else:
+                raise error.PyAsn1Error('Non-ASN.1 value %r and undefined component type at %r' % (value, self))
+        elif componentType is not None:
+            if self.strictConstraints:
+                if not componentType.isSameTypeWith(value, matchTags, matchConstraints):
+                    raise error.PyAsn1Error('Component value is tag-incompatible: %r vs %r' % (value, componentType))
+            else:
+                if not componentType.isSuperTypeOf(value, matchTags, matchConstraints):
+                    raise error.PyAsn1Error('Component value is tag-incompatible: %r vs %r' % (value, componentType))
+
+        if verifyConstraints and value.isValue:
+            try:
+                self.subtypeSpec(value, idx)
+
+            except error.PyAsn1Error:
+                exType, exValue, exTb = sys.exc_info()
+                raise exType('%s at %s' % (exValue, self.__class__.__name__))
+
+        if currentValue is noValue:
+            self._componentValues.append(value)
+        else:
+            self._componentValues[idx] = value
+
+        return self
+
+    @property
+    def componentTagMap(self):
+        if self.componentType is not None:
+            return self.componentType.tagMap
+
+    def prettyPrint(self, scope=0):
+        scope += 1
+        representation = self.__class__.__name__ + ':\n'
+        for idx, componentValue in enumerate(self._componentValues):
+            representation += ' ' * scope
+            if (componentValue is noValue and
+                    self.componentType is not None):
+                representation += '<empty>'
+            else:
+                representation += componentValue.prettyPrint(scope)
+        return representation
+
+    def prettyPrintType(self, scope=0):
+        scope += 1
+        representation = '%s -> %s {\n' % (self.tagSet, self.__class__.__name__)
+        if self.componentType is not None:
+            representation += ' ' * scope
+            representation += self.componentType.prettyPrintType(scope)
+        return representation + '\n' + ' ' * (scope - 1) + '}'
+
+
+    @property
+    def isValue(self):
+        """Indicate that |ASN.1| object represents ASN.1 value.
+
+        If *isValue* is `False` then this object represents just ASN.1 schema.
+
+        If *isValue* is `True` then, in addition to its ASN.1 schema features,
+        this object can also be used like a Python built-in object (e.g. `int`,
+        `str`, `dict` etc.).
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`False` if object represents just ASN.1 schema.
+            :class:`True` if object represents ASN.1 schema and can be used as a normal value.
+
+        Note
+        ----
+        There is an important distinction between PyASN1 schema and value objects.
+        The PyASN1 schema objects can only participate in ASN.1 schema-related
+        operations (e.g. defining or testing the structure of the data). Most
+        obvious uses of ASN.1 schema is to guide serialisation codecs whilst
+        encoding/decoding serialised ASN.1 contents.
+
+        The PyASN1 value objects can **additionally** participate in many operations
+        involving regular Python objects (e.g. arithmetic, comprehension etc).
+        """
+        for componentValue in self._componentValues:
+            if componentValue is noValue or not componentValue.isValue:
+                return False
+
+        return True
+
+
+class SequenceOf(SequenceOfAndSetOfBase):
+    __doc__ = SequenceOfAndSetOfBase.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatConstructed, 0x10)
+    )
+
+    #: Default :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+    #: object representing ASN.1 type allowed within |ASN.1| type
+    componentType = None
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing size constraint on |ASN.1| objects
+    sizeSpec = constraint.ConstraintsIntersection()
+
+    # Disambiguation ASN.1 types identification
+    typeId = SequenceOfAndSetOfBase.getTypeId()
+
+
+class SetOf(SequenceOfAndSetOfBase):
+    __doc__ = SequenceOfAndSetOfBase.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatConstructed, 0x11)
+    )
+
+    #: Default :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+    #: object representing ASN.1 type allowed within |ASN.1| type
+    componentType = None
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing size constraint on |ASN.1| objects
+    sizeSpec = constraint.ConstraintsIntersection()
+
+    # Disambiguation ASN.1 types identification
+    typeId = SequenceOfAndSetOfBase.getTypeId()
+
+
+class SequenceAndSetBase(base.AbstractConstructedAsn1Item):
+    """Create |ASN.1| type.
+
+    |ASN.1| objects are mutable and duck-type Python :class:`dict` objects.
+
+    Keyword Args
+    ------------
+    componentType: :py:class:`~pyasn1.type.namedtype.NamedType`
+        Object holding named ASN.1 types allowed within this collection
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    sizeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing collection size constraint
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class Description(Sequence):  #  Set is similar
+            '''
+            ASN.1 specification:
+
+            Description ::= SEQUENCE {
+                surname    IA5String,
+                first-name IA5String OPTIONAL,
+                age        INTEGER DEFAULT 40
+            }
+            '''
+            componentType = NamedTypes(
+                NamedType('surname', IA5String()),
+                OptionalNamedType('first-name', IA5String()),
+                DefaultedNamedType('age', Integer(40))
+            )
+
+        descr = Description()
+        descr['surname'] = 'Smith'
+        descr['first-name'] = 'John'
+    """
+    #: Default :py:class:`~pyasn1.type.namedtype.NamedTypes`
+    #: object representing named ASN.1 types allowed within |ASN.1| type
+    componentType = namedtype.NamedTypes()
+
+
+    class DynamicNames(object):
+        """Fields names/positions mapping for component-less objects"""
+        def __init__(self):
+            self._keyToIdxMap = {}
+            self._idxToKeyMap = {}
+
+        def __len__(self):
+            return len(self._keyToIdxMap)
+
+        def __contains__(self, item):
+            return item in self._keyToIdxMap or item in self._idxToKeyMap
+
+        def __iter__(self):
+            return (self._idxToKeyMap[idx] for idx in range(len(self._idxToKeyMap)))
+
+        def __getitem__(self, item):
+            try:
+                return self._keyToIdxMap[item]
+
+            except KeyError:
+                return self._idxToKeyMap[item]
+
+        def getNameByPosition(self, idx):
+            try:
+                return self._idxToKeyMap[idx]
+
+            except KeyError:
+                raise error.PyAsn1Error('Type position out of range')
+
+        def getPositionByName(self, name):
+            try:
+                return self._keyToIdxMap[name]
+
+            except KeyError:
+                raise error.PyAsn1Error('Name %s not found' % (name,))
+
+        def addField(self, idx):
+            self._keyToIdxMap['field-%d' % idx] = idx
+            self._idxToKeyMap[idx] = 'field-%d' % idx
+
+
+    def __init__(self, **kwargs):
+        base.AbstractConstructedAsn1Item.__init__(self, **kwargs)
+        self._componentTypeLen = len(self.componentType)
+        self._dynamicNames = self._componentTypeLen or self.DynamicNames()
+
+    def __getitem__(self, idx):
+        if octets.isStringType(idx):
+            try:
+                return self.getComponentByName(idx)
+
+            except error.PyAsn1Error:
+                # duck-typing dict
+                raise KeyError(sys.exc_info()[1])
+
+        else:
+            try:
+                return self.getComponentByPosition(idx)
+
+            except error.PyAsn1Error:
+                # duck-typing list
+                raise IndexError(sys.exc_info()[1])
+
+    def __setitem__(self, idx, value):
+        if octets.isStringType(idx):
+            try:
+                self.setComponentByName(idx, value)
+
+            except error.PyAsn1Error:
+                # duck-typing dict
+                raise KeyError(sys.exc_info()[1])
+
+        else:
+            try:
+                self.setComponentByPosition(idx, value)
+
+            except error.PyAsn1Error:
+                # duck-typing list
+                raise IndexError(sys.exc_info()[1])
+
+    def __contains__(self, key):
+        if self._componentTypeLen:
+            return key in self.componentType
+        else:
+            return key in self._dynamicNames
+
+    def __iter__(self):
+        return iter(self.componentType or self._dynamicNames)
+
+    # Python dict protocol
+
+    def values(self):
+        for idx in range(self._componentTypeLen or len(self._dynamicNames)):
+            yield self[idx]
+
+    def keys(self):
+        return iter(self)
+
+    def items(self):
+        for idx in range(self._componentTypeLen or len(self._dynamicNames)):
+            if self._componentTypeLen:
+                yield self.componentType[idx].name, self[idx]
+            else:
+                yield self._dynamicNames[idx], self[idx]
+
+    def update(self, *iterValue, **mappingValue):
+        for k, v in iterValue:
+            self[k] = v
+        for k in mappingValue:
+            self[k] = mappingValue[k]
+
+    def clear(self):
+        self._componentValues = []
+        self._dynamicNames = self.DynamicNames()
+
+    def _cloneComponentValues(self, myClone, cloneValueFlag):
+        for idx, componentValue in enumerate(self._componentValues):
+            if componentValue is not noValue:
+                if isinstance(componentValue, base.AbstractConstructedAsn1Item):
+                    myClone.setComponentByPosition(
+                        idx, componentValue.clone(cloneValueFlag=cloneValueFlag)
+                    )
+                else:
+                    myClone.setComponentByPosition(idx, componentValue.clone())
+
+    def getComponentByName(self, name, default=noValue, instantiate=True):
+        """Returns |ASN.1| type component by name.
+
+        Equivalent to Python :class:`dict` subscription operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        name: :class:`str`
+            |ASN.1| type component name
+
+        Keyword Args
+        ------------
+        default: :class:`object`
+            If set and requested component is a schema object, return the `default`
+            object instead of the requested component.
+
+        instantiate: :class:`bool`
+            If `True` (default), inner component will be automatically instantiated.
+            If 'False' either existing component or the `noValue` object will be
+            returned.
+
+        Returns
+        -------
+        : :py:class:`~pyasn1.type.base.PyAsn1Item`
+            Instantiate |ASN.1| component type or return existing component value
+        """
+        if self._componentTypeLen:
+            idx = self.componentType.getPositionByName(name)
+        else:
+            try:
+                idx = self._dynamicNames.getPositionByName(name)
+
+            except KeyError:
+                raise error.PyAsn1Error('Name %s not found' % (name,))
+
+        return self.getComponentByPosition(idx, default=default, instantiate=instantiate)
+
+    def setComponentByName(self, name, value=noValue,
+                           verifyConstraints=True,
+                           matchTags=True,
+                           matchConstraints=True):
+        """Assign |ASN.1| type component by name.
+
+        Equivalent to Python :class:`dict` item assignment operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        name: :class:`str`
+            |ASN.1| type component name
+
+        Keyword Args
+        ------------
+        value: :class:`object` or :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+            A Python value to initialize |ASN.1| component with (if *componentType* is set)
+            or ASN.1 value object to assign to |ASN.1| component.
+
+        verifyConstraints: :class:`bool`
+             If `False`, skip constraints validation
+
+        matchTags: :class:`bool`
+             If `False`, skip component tags matching
+
+        matchConstraints: :class:`bool`
+             If `False`, skip component constraints matching
+
+        Returns
+        -------
+        self
+        """
+        if self._componentTypeLen:
+            idx = self.componentType.getPositionByName(name)
+        else:
+            try:
+                idx = self._dynamicNames.getPositionByName(name)
+
+            except KeyError:
+                raise error.PyAsn1Error('Name %s not found' % (name,))
+
+        return self.setComponentByPosition(
+            idx, value, verifyConstraints, matchTags, matchConstraints
+        )
+
+    def getComponentByPosition(self, idx, default=noValue, instantiate=True):
+        """Returns |ASN.1| type component by index.
+
+        Equivalent to Python sequence subscription operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        idx: :class:`int`
+            Component index (zero-based). Must either refer to an existing
+            component or (if *componentType* is set) new ASN.1 schema object gets
+            instantiated.
+
+        Keyword Args
+        ------------
+        default: :class:`object`
+            If set and requested component is a schema object, return the `default`
+            object instead of the requested component.
+
+        instantiate: :class:`bool`
+            If `True` (default), inner component will be automatically instantiated.
+            If 'False' either existing component or the `noValue` object will be
+            returned.
+
+        Returns
+        -------
+        : :py:class:`~pyasn1.type.base.PyAsn1Item`
+            a PyASN1 object
+
+        Examples
+        --------
+
+        .. code-block:: python
+
+            # can also be Set
+            class MySequence(Sequence):
+                componentType = NamedTypes(
+                    NamedType('id', OctetString())
+                )
+
+            s = MySequence()
+
+            # returns component #0 with `.isValue` property False
+            s.getComponentByPosition(0)
+
+            # returns None
+            s.getComponentByPosition(0, default=None)
+
+            s.clear()
+
+            # returns noValue
+            s.getComponentByPosition(0, instantiate=False)
+
+            # sets component #0 to OctetString() ASN.1 schema
+            # object and returns it
+            s.getComponentByPosition(0, instantiate=True)
+
+            # sets component #0 to ASN.1 value object
+            s.setComponentByPosition(0, 'ABCD')
+
+            # returns OctetString('ABCD') value object
+            s.getComponentByPosition(0, instantiate=False)
+
+            s.clear()
+
+            # returns noValue
+            s.getComponentByPosition(0, instantiate=False)
+        """
+        try:
+            componentValue = self._componentValues[idx]
+
+        except IndexError:
+            componentValue = noValue
+
+        if not instantiate:
+            if componentValue is noValue or not componentValue.isValue:
+                return default
+            else:
+                return componentValue
+
+        if componentValue is noValue:
+            self.setComponentByPosition(idx)
+
+        componentValue = self._componentValues[idx]
+
+        if default is noValue or componentValue.isValue:
+            return componentValue
+        else:
+            return default
+
+    def setComponentByPosition(self, idx, value=noValue,
+                               verifyConstraints=True,
+                               matchTags=True,
+                               matchConstraints=True):
+        """Assign |ASN.1| type component by position.
+
+        Equivalent to Python sequence item assignment operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        idx : :class:`int`
+            Component index (zero-based). Must either refer to existing
+            component (if *componentType* is set) or to N+1 component
+            otherwise. In the latter case a new component of given ASN.1
+            type gets instantiated and appended to |ASN.1| sequence.
+
+        Keyword Args
+        ------------
+        value: :class:`object` or :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+            A Python value to initialize |ASN.1| component with (if *componentType* is set)
+            or ASN.1 value object to assign to |ASN.1| component.
+
+        verifyConstraints : :class:`bool`
+             If `False`, skip constraints validation
+
+        matchTags: :class:`bool`
+             If `False`, skip component tags matching
+
+        matchConstraints: :class:`bool`
+             If `False`, skip component constraints matching
+
+        Returns
+        -------
+        self
+        """
+        componentType = self.componentType
+        componentTypeLen = self._componentTypeLen
+
+        try:
+            currentValue = self._componentValues[idx]
+
+        except IndexError:
+            currentValue = noValue
+            if componentTypeLen:
+                if componentTypeLen < idx:
+                    raise error.PyAsn1Error('component index out of range')
+
+                self._componentValues = [noValue] * componentTypeLen
+
+        if value is noValue:
+            if componentTypeLen:
+                value = componentType.getTypeByPosition(idx).clone()
+
+            elif currentValue is noValue:
+                raise error.PyAsn1Error('Component type not defined')
+
+        elif not isinstance(value, base.Asn1Item):
+            if componentTypeLen:
+                subComponentType = componentType.getTypeByPosition(idx)
+                if isinstance(subComponentType, base.AbstractSimpleAsn1Item):
+                    value = subComponentType.clone(value=value)
+
+                else:
+                    raise error.PyAsn1Error('%s can cast only scalar values' % componentType.__class__.__name__)
+
+            elif currentValue is not noValue and isinstance(currentValue, base.AbstractSimpleAsn1Item):
+                value = currentValue.clone(value=value)
+
+            else:
+                raise error.PyAsn1Error('%s undefined component type' % componentType.__class__.__name__)
+
+        elif (matchTags or matchConstraints) and componentTypeLen:
+            subComponentType = componentType.getTypeByPosition(idx)
+            if subComponentType is not noValue:
+                subtypeChecker = (self.strictConstraints and
+                                  subComponentType.isSameTypeWith or
+                                  subComponentType.isSuperTypeOf)
+
+                if not subtypeChecker(value, matchTags, matchConstraints):
+                    if not componentType[idx].openType:
+                        raise error.PyAsn1Error('Component value is tag-incompatible: %r vs %r' % (value, componentType))
+
+        if verifyConstraints and value.isValue:
+            try:
+                self.subtypeSpec(value, idx)
+
+            except error.PyAsn1Error:
+                exType, exValue, exTb = sys.exc_info()
+                raise exType('%s at %s' % (exValue, self.__class__.__name__))
+
+        if componentTypeLen or idx in self._dynamicNames:
+            self._componentValues[idx] = value
+
+        elif len(self._componentValues) == idx:
+            self._componentValues.append(value)
+            self._dynamicNames.addField(idx)
+
+        else:
+            raise error.PyAsn1Error('Component index out of range')
+
+        return self
+
+    @property
+    def isValue(self):
+        """Indicate that |ASN.1| object represents ASN.1 value.
+
+        If *isValue* is `False` then this object represents just ASN.1 schema.
+
+        If *isValue* is `True` then, in addition to its ASN.1 schema features,
+        this object can also be used like a Python built-in object (e.g. `int`,
+        `str`, `dict` etc.).
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`False` if object represents just ASN.1 schema.
+            :class:`True` if object represents ASN.1 schema and can be used as a normal value.
+
+        Note
+        ----
+        There is an important distinction between PyASN1 schema and value objects.
+        The PyASN1 schema objects can only participate in ASN.1 schema-related
+        operations (e.g. defining or testing the structure of the data). Most
+        obvious uses of ASN.1 schema is to guide serialisation codecs whilst
+        encoding/decoding serialised ASN.1 contents.
+
+        The PyASN1 value objects can **additionally** participate in many operations
+        involving regular Python objects (e.g. arithmetic, comprehension etc).
+        """
+        componentType = self.componentType
+
+        if componentType:
+            for idx, subComponentType in enumerate(componentType.namedTypes):
+                if subComponentType.isDefaulted or subComponentType.isOptional:
+                    continue
+
+                if not self._componentValues:
+                    return False
+
+                componentValue = self._componentValues[idx]
+                if componentValue is noValue or not componentValue.isValue:
+                    return False
+
+        else:
+            for componentValue in self._componentValues:
+                if componentValue is noValue or not componentValue.isValue:
+                    return False
+
+        return True
+
+    def prettyPrint(self, scope=0):
+        """Return an object representation string.
+
+        Returns
+        -------
+        : :class:`str`
+            Human-friendly object representation.
+        """
+        scope += 1
+        representation = self.__class__.__name__ + ':\n'
+        for idx, componentValue in enumerate(self._componentValues):
+            if componentValue is not noValue:
+                representation += ' ' * scope
+                if self.componentType:
+                    representation += self.componentType.getNameByPosition(idx)
+                else:
+                    representation += self._dynamicNames.getNameByPosition(idx)
+                representation = '%s=%s\n' % (
+                    representation, componentValue.prettyPrint(scope)
+                )
+        return representation
+
+    def prettyPrintType(self, scope=0):
+        scope += 1
+        representation = '%s -> %s {\n' % (self.tagSet, self.__class__.__name__)
+        for idx, componentType in enumerate(self.componentType.values() or self._componentValues):
+            representation += ' ' * scope
+            if self.componentType:
+                representation += '"%s"' % self.componentType.getNameByPosition(idx)
+            else:
+                representation += '"%s"' % self._dynamicNames.getNameByPosition(idx)
+            representation = '%s = %s\n' % (
+                representation, componentType.prettyPrintType(scope)
+            )
+        return representation + '\n' + ' ' * (scope - 1) + '}'
+
+    # backward compatibility
+
+    def setDefaultComponents(self):
+        return self
+
+    def getComponentType(self):
+        if self._componentTypeLen:
+            return self.componentType
+
+    def getNameByPosition(self, idx):
+        if self._componentTypeLen:
+            return self.componentType[idx].name
+
+
+class Sequence(SequenceAndSetBase):
+    __doc__ = SequenceAndSetBase.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatConstructed, 0x10)
+    )
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing constraints on |ASN.1| objects
+    sizeSpec = constraint.ConstraintsIntersection()
+
+    #: Default collection of ASN.1 types of component (e.g. :py:class:`~pyasn1.type.namedtype.NamedType`)
+    #: object imposing size constraint on |ASN.1| objects
+    componentType = namedtype.NamedTypes()
+
+    # Disambiguation ASN.1 types identification
+    typeId = SequenceAndSetBase.getTypeId()
+
+    # backward compatibility
+
+    def getComponentTagMapNearPosition(self, idx):
+        if self.componentType:
+            return self.componentType.getTagMapNearPosition(idx)
+
+    def getComponentPositionNearType(self, tagSet, idx):
+        if self.componentType:
+            return self.componentType.getPositionNearType(tagSet, idx)
+        else:
+            return idx
+
+
+class Set(SequenceAndSetBase):
+    __doc__ = SequenceAndSetBase.__doc__
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.initTagSet(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatConstructed, 0x11)
+    )
+
+    #: Default collection of ASN.1 types of component (e.g. :py:class:`~pyasn1.type.namedtype.NamedType`)
+    #: object representing ASN.1 type allowed within |ASN.1| type
+    componentType = namedtype.NamedTypes()
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing constraints on |ASN.1| objects
+    sizeSpec = constraint.ConstraintsIntersection()
+
+    # Disambiguation ASN.1 types identification
+    typeId = SequenceAndSetBase.getTypeId()
+
+    def getComponent(self, innerFlag=False):
+        return self
+
+    def getComponentByType(self, tagSet, default=noValue,
+                           instantiate=True, innerFlag=False):
+        """Returns |ASN.1| type component by ASN.1 tag.
+
+        Parameters
+        ----------
+        tagSet : :py:class:`~pyasn1.type.tag.TagSet`
+            Object representing ASN.1 tags to identify one of
+            |ASN.1| object component
+
+        Keyword Args
+        ------------
+        default: :class:`object`
+            If set and requested component is a schema object, return the `default`
+            object instead of the requested component.
+
+        instantiate: :class:`bool`
+            If `True` (default), inner component will be automatically instantiated.
+            If 'False' either existing component or the `noValue` object will be
+            returned.
+
+        Returns
+        -------
+        : :py:class:`~pyasn1.type.base.PyAsn1Item`
+            a pyasn1 object
+        """
+        componentValue = self.getComponentByPosition(
+            self.componentType.getPositionByType(tagSet),
+            default=default, instantiate=instantiate
+        )
+        if innerFlag and isinstance(componentValue, Set):
+            # get inner component by inner tagSet
+            return componentValue.getComponent(innerFlag=True)
+        else:
+            # get outer component by inner tagSet
+            return componentValue
+
+    def setComponentByType(self, tagSet, value=noValue,
+                           verifyConstraints=True,
+                           matchTags=True,
+                           matchConstraints=True,
+                           innerFlag=False):
+        """Assign |ASN.1| type component by ASN.1 tag.
+
+        Parameters
+        ----------
+        tagSet : :py:class:`~pyasn1.type.tag.TagSet`
+            Object representing ASN.1 tags to identify one of
+            |ASN.1| object component
+
+        Keyword Args
+        ------------
+        value: :class:`object` or :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+            A Python value to initialize |ASN.1| component with (if *componentType* is set)
+            or ASN.1 value object to assign to |ASN.1| component.
+
+        verifyConstraints : :class:`bool`
+            If `False`, skip constraints validation
+
+        matchTags: :class:`bool`
+            If `False`, skip component tags matching
+
+        matchConstraints: :class:`bool`
+            If `False`, skip component constraints matching
+
+        innerFlag: :class:`bool`
+            If `True`, search for matching *tagSet* recursively.
+
+        Returns
+        -------
+        self
+        """
+        idx = self.componentType.getPositionByType(tagSet)
+
+        if innerFlag:  # set inner component by inner tagSet
+            componentType = self.componentType.getTypeByPosition(idx)
+
+            if componentType.tagSet:
+                return self.setComponentByPosition(
+                    idx, value, verifyConstraints, matchTags, matchConstraints
+                )
+            else:
+                componentType = self.getComponentByPosition(idx)
+                return componentType.setComponentByType(
+                    tagSet, value, verifyConstraints, matchTags, matchConstraints, innerFlag=innerFlag
+                )
+        else:  # set outer component by inner tagSet
+            return self.setComponentByPosition(
+                idx, value, verifyConstraints, matchTags, matchConstraints
+            )
+
+    @property
+    def componentTagMap(self):
+        if self.componentType:
+            return self.componentType.tagMapUnique
+
+
+class Choice(Set):
+    """Create |ASN.1| type.
+
+    |ASN.1| objects are mutable and duck-type Python :class:`dict` objects.
+
+    Keyword Args
+    ------------
+    componentType: :py:class:`~pyasn1.type.namedtype.NamedType`
+        Object holding named ASN.1 types allowed within this collection
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    sizeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing collection size constraint
+
+    Examples
+    --------
+
+    .. code-block:: python
+
+        class Afters(Choice):
+            '''
+            ASN.1 specification:
+
+            Afters ::= CHOICE {
+                cheese  [0] IA5String,
+                dessert [1] IA5String
+            }
+            '''
+            componentType = NamedTypes(
+                NamedType('cheese', IA5String().subtype(
+                    implicitTag=Tag(tagClassContext, tagFormatSimple, 0)
+                ),
+                NamedType('dessert', IA5String().subtype(
+                    implicitTag=Tag(tagClassContext, tagFormatSimple, 1)
+                )
+            )
+
+        afters = Afters()
+        afters['cheese'] = 'Mascarpone'
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.TagSet()  # untagged
+
+    #: Default collection of ASN.1 types of component (e.g. :py:class:`~pyasn1.type.namedtype.NamedType`)
+    #: object representing ASN.1 type allowed within |ASN.1| type
+    componentType = namedtype.NamedTypes()
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    #: Default :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+    #: object imposing size constraint on |ASN.1| objects
+    sizeSpec = constraint.ConstraintsIntersection(
+        constraint.ValueSizeConstraint(1, 1)
+    )
+
+    # Disambiguation ASN.1 types identification
+    typeId = Set.getTypeId()
+
+    _currentIdx = None
+
+    def __eq__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] == other
+        return NotImplemented
+
+    def __ne__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] != other
+        return NotImplemented
+
+    def __lt__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] < other
+        return NotImplemented
+
+    def __le__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] <= other
+        return NotImplemented
+
+    def __gt__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] > other
+        return NotImplemented
+
+    def __ge__(self, other):
+        if self._componentValues:
+            return self._componentValues[self._currentIdx] >= other
+        return NotImplemented
+
+    if sys.version_info[0] <= 2:
+        def __nonzero__(self):
+            return self._componentValues and True or False
+    else:
+        def __bool__(self):
+            return self._componentValues and True or False
+
+    def __len__(self):
+        return self._currentIdx is not None and 1 or 0
+
+    def __contains__(self, key):
+        if self._currentIdx is None:
+            return False
+        return key == self.componentType[self._currentIdx].getName()
+
+    def __iter__(self):
+        if self._currentIdx is None:
+            raise StopIteration
+        yield self.componentType[self._currentIdx].getName()
+
+    # Python dict protocol
+
+    def values(self):
+        if self._currentIdx is not None:
+            yield self._componentValues[self._currentIdx]
+
+    def keys(self):
+        if self._currentIdx is not None:
+            yield self.componentType[self._currentIdx].getName()
+
+    def items(self):
+        if self._currentIdx is not None:
+            yield self.componentType[self._currentIdx].getName(), self[self._currentIdx]
+
+    def verifySizeSpec(self):
+        if self._currentIdx is None:
+            raise error.PyAsn1Error('Component not chosen')
+
+    def _cloneComponentValues(self, myClone, cloneValueFlag):
+        try:
+            component = self.getComponent()
+        except error.PyAsn1Error:
+            pass
+        else:
+            if isinstance(component, Choice):
+                tagSet = component.effectiveTagSet
+            else:
+                tagSet = component.tagSet
+            if isinstance(component, base.AbstractConstructedAsn1Item):
+                myClone.setComponentByType(
+                    tagSet, component.clone(cloneValueFlag=cloneValueFlag)
+                )
+            else:
+                myClone.setComponentByType(tagSet, component.clone())
+
+    def getComponentByPosition(self, idx, default=noValue, instantiate=True):
+        __doc__ = Set.__doc__
+
+        if self._currentIdx is None or self._currentIdx != idx:
+            return Set.getComponentByPosition(self, idx, default=default,
+                                              instantiate=instantiate)
+
+        return self._componentValues[idx]
+
+    def setComponentByPosition(self, idx, value=noValue,
+                               verifyConstraints=True,
+                               matchTags=True,
+                               matchConstraints=True):
+        """Assign |ASN.1| type component by position.
+
+        Equivalent to Python sequence item assignment operation (e.g. `[]`).
+
+        Parameters
+        ----------
+        idx: :class:`int`
+            Component index (zero-based). Must either refer to existing
+            component or to N+1 component. In the latter case a new component
+            type gets instantiated (if *componentType* is set, or given ASN.1
+            object is taken otherwise) and appended to the |ASN.1| sequence.
+
+        Keyword Args
+        ------------
+        value: :class:`object` or :py:class:`~pyasn1.type.base.PyAsn1Item` derivative
+            A Python value to initialize |ASN.1| component with (if *componentType* is set)
+            or ASN.1 value object to assign to |ASN.1| component. Once a new value is
+            set to *idx* component, previous value is dropped.
+
+        verifyConstraints : :class:`bool`
+            If `False`, skip constraints validation
+
+        matchTags: :class:`bool`
+            If `False`, skip component tags matching
+
+        matchConstraints: :class:`bool`
+            If `False`, skip component constraints matching
+
+        Returns
+        -------
+        self
+        """
+        oldIdx = self._currentIdx
+        Set.setComponentByPosition(self, idx, value, verifyConstraints, matchTags, matchConstraints)
+        self._currentIdx = idx
+        if oldIdx is not None and oldIdx != idx:
+            self._componentValues[oldIdx] = noValue
+        return self
+
+    @property
+    def effectiveTagSet(self):
+        """Return a :class:`~pyasn1.type.tag.TagSet` object of the currently initialized component or self (if |ASN.1| is tagged)."""
+        if self.tagSet:
+            return self.tagSet
+        else:
+            component = self.getComponent()
+            return component.effectiveTagSet
+
+    @property
+    def tagMap(self):
+        """"Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping
+            ASN.1 tags to ASN.1 objects contained within callee.
+        """
+        if self.tagSet:
+            return Set.tagMap.fget(self)
+        else:
+            return self.componentType.tagMapUnique
+
+    def getComponent(self, innerFlag=False):
+        """Return currently assigned component of the |ASN.1| object.
+
+        Returns
+        -------
+        : :py:class:`~pyasn1.type.base.PyAsn1Item`
+            a PyASN1 object
+        """
+        if self._currentIdx is None:
+            raise error.PyAsn1Error('Component not chosen')
+        else:
+            c = self._componentValues[self._currentIdx]
+            if innerFlag and isinstance(c, Choice):
+                return c.getComponent(innerFlag)
+            else:
+                return c
+
+    def getName(self, innerFlag=False):
+        """Return the name of currently assigned component of the |ASN.1| object.
+
+        Returns
+        -------
+        : :py:class:`str`
+            |ASN.1| component name
+        """
+        if self._currentIdx is None:
+            raise error.PyAsn1Error('Component not chosen')
+        else:
+            if innerFlag:
+                c = self._componentValues[self._currentIdx]
+                if isinstance(c, Choice):
+                    return c.getName(innerFlag)
+            return self.componentType.getNameByPosition(self._currentIdx)
+
+    @property
+    def isValue(self):
+        """Indicate that |ASN.1| object represents ASN.1 value.
+
+        If *isValue* is `False` then this object represents just ASN.1 schema.
+
+        If *isValue* is `True` then, in addition to its ASN.1 schema features,
+        this object can also be used like a Python built-in object (e.g. `int`,
+        `str`, `dict` etc.).
+
+        Returns
+        -------
+        : :class:`bool`
+            :class:`False` if object represents just ASN.1 schema.
+            :class:`True` if object represents ASN.1 schema and can be used as a normal value.
+
+        Note
+        ----
+        There is an important distinction between PyASN1 schema and value objects.
+        The PyASN1 schema objects can only participate in ASN.1 schema-related
+        operations (e.g. defining or testing the structure of the data). Most
+        obvious uses of ASN.1 schema is to guide serialisation codecs whilst
+        encoding/decoding serialised ASN.1 contents.
+
+        The PyASN1 value objects can **additionally** participate in many operations
+        involving regular Python objects (e.g. arithmetic, comprehension etc).
+        """
+        if self._currentIdx is None:
+            return False
+
+        componentValue = self._componentValues[self._currentIdx]
+
+        return componentValue is not noValue and componentValue.isValue
+
+    def clear(self):
+        self._currentIdx = None
+        Set.clear(self)
+
+    # compatibility stubs
+
+    def getMinTagSet(self):
+        return self.minTagSet
+
+
+class Any(OctetString):
+    """Create |ASN.1| schema or value object.
+
+    |ASN.1| objects are immutable and duck-type Python 2 :class:`str` or Python 3
+    :class:`bytes`. When used in Unicode context, |ASN.1| type assumes "|encoding|"
+    serialisation.
+
+    Keyword Args
+    ------------
+    value: :class:`str`, :class:`bytes` or |ASN.1| object
+        string (Python 2) or bytes (Python 3), alternatively unicode object
+        (Python 2) or string (Python 3) representing character string to be
+        serialised into octets (note `encoding` parameter) or |ASN.1| object.
+
+    tagSet: :py:class:`~pyasn1.type.tag.TagSet`
+        Object representing non-default ASN.1 tag(s)
+
+    subtypeSpec: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection`
+        Object representing non-default ASN.1 subtype constraint(s)
+
+    encoding: :py:class:`str`
+        Unicode codec ID to encode/decode :class:`unicode` (Python 2) or
+        :class:`str` (Python 3) the payload when |ASN.1| object is used
+        in text string context.
+
+    binValue: :py:class:`str`
+        Binary string initializer to use instead of the *value*.
+        Example: '10110011'.
+
+    hexValue: :py:class:`str`
+        Hexadecimal string initializer to use instead of the *value*.
+        Example: 'DEADBEEF'.
+
+    Raises
+    ------
+    :py:class:`~pyasn1.error.PyAsn1Error`
+        On constraint violation or bad initializer.
+
+    Examples
+    --------
+    .. code-block:: python
+
+        class Error(Sequence):
+            '''
+            ASN.1 specification:
+
+            Error ::= SEQUENCE {
+                code      INTEGER,
+                parameter ANY DEFINED BY code  -- Either INTEGER or REAL
+            }
+            '''
+            componentType=NamedTypes(
+                NamedType('code', Integer()),
+                NamedType('parameter', Any(),
+                          openType=OpenType('code', {1: Integer(),
+                                                     2: Real()}))
+            )
+
+        error = Error()
+        error['code'] = 1
+        error['parameter'] = Integer(1234)
+    """
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.tag.TagSet` object representing ASN.1 tag(s)
+    #: associated with |ASN.1| type.
+    tagSet = tag.TagSet()  # untagged
+
+    #: Set (on class, not on instance) or return a
+    #: :py:class:`~pyasn1.type.constraint.ConstraintsIntersection` object
+    #: imposing constraints on |ASN.1| type initialization values.
+    subtypeSpec = constraint.ConstraintsIntersection()
+
+    # Disambiguation ASN.1 types identification
+    typeId = OctetString.getTypeId()
+
+    @property
+    def tagMap(self):
+        """"Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping
+            ASN.1 tags to ASN.1 objects contained within callee.
+        """
+        try:
+            return self._tagMap
+
+        except AttributeError:
+            self._tagMap = tagmap.TagMap(
+                {self.tagSet: self},
+                {eoo.endOfOctets.tagSet: eoo.endOfOctets},
+                self
+            )
+
+            return self._tagMap
+
+# XXX
+# coercion rules?
diff --git a/venv/lib/python3.5/site-packages/pyasn1/type/useful.py b/venv/lib/python3.5/site-packages/pyasn1/type/useful.py
new file mode 100644
index 0000000..54961d7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pyasn1/type/useful.py
@@ -0,0 +1,191 @@
+#
+# This file is part of pyasn1 software.
+#
+# Copyright (c) 2005-2017, Ilya Etingof <etingof@gmail.com>
+# License: http://snmplabs.com/pyasn1/license.html
+#
+import datetime
+
+from pyasn1 import error
+from pyasn1.compat import dateandtime
+from pyasn1.compat import string
+from pyasn1.type import char
+from pyasn1.type import tag
+from pyasn1.type import univ
+
+__all__ = ['ObjectDescriptor', 'GeneralizedTime', 'UTCTime']
+
+NoValue = univ.NoValue
+noValue = univ.noValue
+
+
+class ObjectDescriptor(char.GraphicString):
+    __doc__ = char.GraphicString.__doc__
+
+    #: Default :py:class:`~pyasn1.type.tag.TagSet` object for |ASN.1| objects
+    tagSet = char.GraphicString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 7)
+    )
+
+    # Optimization for faster codec lookup
+    typeId = char.GraphicString.getTypeId()
+
+
+class TimeMixIn(object):
+
+    _yearsDigits = 4
+    _hasSubsecond = False
+    _optionalMinutes = False
+    _shortTZ = False
+
+    class FixedOffset(datetime.tzinfo):
+        """Fixed offset in minutes east from UTC."""
+
+        # defaulted arguments required
+        # https: // docs.python.org / 2.3 / lib / datetime - tzinfo.html
+        def __init__(self, offset=0, name='UTC'):
+            self.__offset = datetime.timedelta(minutes=offset)
+            self.__name = name
+
+        def utcoffset(self, dt):
+            return self.__offset
+
+        def tzname(self, dt):
+            return self.__name
+
+        def dst(self, dt):
+            return datetime.timedelta(0)
+
+    UTC = FixedOffset()
+
+    @property
+    def asDateTime(self):
+        """Create :py:class:`datetime.datetime` object from a |ASN.1| object.
+
+        Returns
+        -------
+        :
+            new instance of :py:class:`datetime.datetime` object
+        """
+        text = str(self)
+        if text.endswith('Z'):
+            tzinfo = TimeMixIn.UTC
+            text = text[:-1]
+
+        elif '-' in text or '+' in text:
+            if '+' in text:
+                text, plusminus, tz = string.partition(text, '+')
+            else:
+                text, plusminus, tz = string.partition(text, '-')
+
+            if self._shortTZ and len(tz) == 2:
+                tz += '00'
+
+            if len(tz) != 4:
+                raise error.PyAsn1Error('malformed time zone offset %s' % tz)
+
+            try:
+                minutes = int(tz[:2]) * 60 + int(tz[2:])
+                if plusminus == '-':
+                    minutes *= -1
+
+            except ValueError:
+                raise error.PyAsn1Error('unknown time specification %s' % self)
+
+            tzinfo = TimeMixIn.FixedOffset(minutes, '?')
+
+        else:
+            tzinfo = None
+
+        if '.' in text or ',' in text:
+            if '.' in text:
+                text, _, ms = string.partition(text, '.')
+            else:
+                text, _, ms = string.partition(text, ',')
+
+            try:
+                ms = int(ms) * 10000
+
+            except ValueError:
+                raise error.PyAsn1Error('bad sub-second time specification %s' % self)
+
+        else:
+            ms = 0
+
+        if self._optionalMinutes and len(text) - self._yearsDigits == 6:
+            text += '0000'
+        elif len(text) - self._yearsDigits == 8:
+            text += '00'
+
+        try:
+            dt = dateandtime.strptime(text, self._yearsDigits == 4 and '%Y%m%d%H%M%S' or '%y%m%d%H%M%S')
+
+        except ValueError:
+            raise error.PyAsn1Error('malformed datetime format %s' % self)
+
+        return dt.replace(microsecond=ms, tzinfo=tzinfo)
+
+    @classmethod
+    def fromDateTime(cls, dt):
+        """Create |ASN.1| object from a :py:class:`datetime.datetime` object.
+
+        Parameters
+        ----------
+        dt: :py:class:`datetime.datetime` object
+            The `datetime.datetime` object to initialize the |ASN.1| object
+            from
+
+        Returns
+        -------
+        :
+            new instance of |ASN.1| value
+        """
+        text = dt.strftime(cls._yearsDigits == 4 and '%Y%m%d%H%M%S' or '%y%m%d%H%M%S')
+        if cls._hasSubsecond:
+            text += '.%d' % (dt.microsecond // 10000)
+
+        if dt.utcoffset():
+            seconds = dt.utcoffset().seconds
+            if seconds < 0:
+                text += '-'
+            else:
+                text += '+'
+            text += '%.2d%.2d' % (seconds // 3600, seconds % 3600)
+        else:
+            text += 'Z'
+
+        return cls(text)
+
+
+class GeneralizedTime(char.VisibleString, TimeMixIn):
+    __doc__ = char.VisibleString.__doc__
+
+    #: Default :py:class:`~pyasn1.type.tag.TagSet` object for |ASN.1| objects
+    tagSet = char.VisibleString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 24)
+    )
+
+    # Optimization for faster codec lookup
+    typeId = char.VideotexString.getTypeId()
+
+    _yearsDigits = 4
+    _hasSubsecond = True
+    _optionalMinutes = True
+    _shortTZ = True
+
+
+class UTCTime(char.VisibleString, TimeMixIn):
+    __doc__ = char.VisibleString.__doc__
+
+    #: Default :py:class:`~pyasn1.type.tag.TagSet` object for |ASN.1| objects
+    tagSet = char.VisibleString.tagSet.tagImplicitly(
+        tag.Tag(tag.tagClassUniversal, tag.tagFormatSimple, 23)
+    )
+
+    # Optimization for faster codec lookup
+    typeId = char.VideotexString.getTypeId()
+
+    _yearsDigits = 2
+    _hasSubsecond = False
+    _optionalMinutes = False
+    _shortTZ = False
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/DESCRIPTION.rst b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..4e828af
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/DESCRIPTION.rst
@@ -0,0 +1,7 @@
+
+pycparser is a complete parser of the C language, written in
+pure Python using the PLY parsing library.
+It parses C code into an AST and can serve as a front-end for
+C compilers or analysis tools.
+
+
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/INSTALLER b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/METADATA b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/METADATA
new file mode 100644
index 0000000..f8f26d2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/METADATA
@@ -0,0 +1,20 @@
+Metadata-Version: 2.0
+Name: pycparser
+Version: 2.18
+Summary: C parser in Python
+Home-page: https://github.com/eliben/pycparser
+Author: Eli Bendersky
+Author-email: eliben@gmail.com
+License: BSD
+Description-Content-Type: UNKNOWN
+Platform: Cross Platform
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 3
+
+
+pycparser is a complete parser of the C language, written in
+pure Python using the PLY parsing library.
+It parses C code into an AST and can serve as a front-end for
+C compilers or analysis tools.
+
+
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/RECORD b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/RECORD
new file mode 100644
index 0000000..eb8aacd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/RECORD
@@ -0,0 +1,42 @@
+pycparser/__init__.py,sha256=q0p4D0CWK3fK37a3yxZfwfwKciZpGlfXL3N8uY5aQr8,2909
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+pycparser/_build_tables.py,sha256=zA9id-UfV2TD9gqBDmD48isjs7f-bYFEfSEkYZn8NLs,857
+pycparser/_c_ast.cfg,sha256=uGOUNAj7-Q1Wdc6SHKLvdGxeANPbY9vJVqOnC7Z4SjE,4204
+pycparser/ast_transforms.py,sha256=jQW5yO5WmgSRkqL8ea4frmH1W3mX6PafeW3OJMPnXmk,3574
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+pycparser/c_lexer.py,sha256=ppQAKzUfEM-bi1nguL26YAPpzt9AgosXPy6RK_jvLS8,14463
+pycparser/c_parser.py,sha256=BGdoaSjLrhEWatUjSybOBATPAlGdg-grzbJb0k-fmms,66340
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+pycparser-2.18.dist-info/WHEEL,sha256=kdsN-5OJAZIiHN-iO4Rhl82KyS0bDWf4uBwMbkNafr8,110
+pycparser-2.18.dist-info/metadata.json,sha256=7A54cDkZHz8t2j89ygc9bCS03_6pIFlvIASAnsQwk1M,562
+pycparser-2.18.dist-info/top_level.txt,sha256=c-lPcS74L_8KoH7IE6PQF5ofyirRQNV4VhkbSFIPeWM,10
+pycparser-2.18.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+pycparser/ply/__pycache__/cpp.cpython-35.pyc,,
+pycparser/__pycache__/_build_tables.cpython-35.pyc,,
+pycparser/ply/__pycache__/ctokens.cpython-35.pyc,,
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diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/WHEEL b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/WHEEL
new file mode 100644
index 0000000..7332a41
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.30.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/metadata.json b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/metadata.json
new file mode 100644
index 0000000..da10b92
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Programming Language :: Python :: 2", "Programming Language :: Python :: 3"], "description_content_type": "UNKNOWN", "extensions": {"python.details": {"contacts": [{"email": "eliben@gmail.com", "name": "Eli Bendersky", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst"}, "project_urls": {"Home": "https://github.com/eliben/pycparser"}}}, "generator": "bdist_wheel (0.30.0)", "license": "BSD", "metadata_version": "2.0", "name": "pycparser", "platform": "Cross Platform", "summary": "C parser in Python", "version": "2.18"}
\ No newline at end of file
diff --git a/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/top_level.txt b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/top_level.txt
new file mode 100644
index 0000000..dc1c9e1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser-2.18.dist-info/top_level.txt
@@ -0,0 +1 @@
+pycparser
diff --git a/venv/lib/python3.5/site-packages/pycparser/__init__.py b/venv/lib/python3.5/site-packages/pycparser/__init__.py
new file mode 100644
index 0000000..e089166
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/__init__.py
@@ -0,0 +1,93 @@
+#-----------------------------------------------------------------
+# pycparser: __init__.py
+#
+# This package file exports some convenience functions for
+# interacting with pycparser
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+__all__ = ['c_lexer', 'c_parser', 'c_ast']
+__version__ = '2.18'
+
+from subprocess import Popen, PIPE
+from .c_parser import CParser
+
+
+def preprocess_file(filename, cpp_path='cpp', cpp_args=''):
+    """ Preprocess a file using cpp.
+
+        filename:
+            Name of the file you want to preprocess.
+
+        cpp_path:
+        cpp_args:
+            Refer to the documentation of parse_file for the meaning of these
+            arguments.
+
+        When successful, returns the preprocessed file's contents.
+        Errors from cpp will be printed out.
+    """
+    path_list = [cpp_path]
+    if isinstance(cpp_args, list):
+        path_list += cpp_args
+    elif cpp_args != '':
+        path_list += [cpp_args]
+    path_list += [filename]
+
+    try:
+        # Note the use of universal_newlines to treat all newlines
+        # as \n for Python's purpose
+        #
+        pipe = Popen(   path_list,
+                        stdout=PIPE,
+                        universal_newlines=True)
+        text = pipe.communicate()[0]
+    except OSError as e:
+        raise RuntimeError("Unable to invoke 'cpp'.  " +
+            'Make sure its path was passed correctly\n' +
+            ('Original error: %s' % e))
+
+    return text
+
+
+def parse_file(filename, use_cpp=False, cpp_path='cpp', cpp_args='',
+               parser=None):
+    """ Parse a C file using pycparser.
+
+        filename:
+            Name of the file you want to parse.
+
+        use_cpp:
+            Set to True if you want to execute the C pre-processor
+            on the file prior to parsing it.
+
+        cpp_path:
+            If use_cpp is True, this is the path to 'cpp' on your
+            system. If no path is provided, it attempts to just
+            execute 'cpp', so it must be in your PATH.
+
+        cpp_args:
+            If use_cpp is True, set this to the command line arguments strings
+            to cpp. Be careful with quotes - it's best to pass a raw string
+            (r'') here. For example:
+            r'-I../utils/fake_libc_include'
+            If several arguments are required, pass a list of strings.
+
+        parser:
+            Optional parser object to be used instead of the default CParser
+
+        When successful, an AST is returned. ParseError can be
+        thrown if the file doesn't parse successfully.
+
+        Errors from cpp will be printed out.
+    """
+    if use_cpp:
+        text = preprocess_file(filename, cpp_path, cpp_args)
+    else:
+        with open(filename, 'rU') as f:
+            text = f.read()
+
+    if parser is None:
+        parser = CParser()
+    return parser.parse(text, filename)
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diff --git a/venv/lib/python3.5/site-packages/pycparser/_ast_gen.py b/venv/lib/python3.5/site-packages/pycparser/_ast_gen.py
new file mode 100644
index 0000000..669c303
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/_ast_gen.py
@@ -0,0 +1,278 @@
+#-----------------------------------------------------------------
+# _ast_gen.py
+#
+# Generates the AST Node classes from a specification given in
+# a configuration file
+#
+# The design of this module was inspired by astgen.py from the
+# Python 2.5 code-base.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+import pprint
+from string import Template
+
+
+class ASTCodeGenerator(object):
+    def __init__(self, cfg_filename='_c_ast.cfg'):
+        """ Initialize the code generator from a configuration
+            file.
+        """
+        self.cfg_filename = cfg_filename
+        self.node_cfg = [NodeCfg(name, contents)
+            for (name, contents) in self.parse_cfgfile(cfg_filename)]
+
+    def generate(self, file=None):
+        """ Generates the code into file, an open file buffer.
+        """
+        src = Template(_PROLOGUE_COMMENT).substitute(
+            cfg_filename=self.cfg_filename)
+
+        src += _PROLOGUE_CODE
+        for node_cfg in self.node_cfg:
+            src += node_cfg.generate_source() + '\n\n'
+
+        file.write(src)
+
+    def parse_cfgfile(self, filename):
+        """ Parse the configuration file and yield pairs of
+            (name, contents) for each node.
+        """
+        with open(filename, "r") as f:
+            for line in f:
+                line = line.strip()
+                if not line or line.startswith('#'):
+                    continue
+                colon_i = line.find(':')
+                lbracket_i = line.find('[')
+                rbracket_i = line.find(']')
+                if colon_i < 1 or lbracket_i <= colon_i or rbracket_i <= lbracket_i:
+                    raise RuntimeError("Invalid line in %s:\n%s\n" % (filename, line))
+
+                name = line[:colon_i]
+                val = line[lbracket_i + 1:rbracket_i]
+                vallist = [v.strip() for v in val.split(',')] if val else []
+                yield name, vallist
+
+
+class NodeCfg(object):
+    """ Node configuration.
+
+        name: node name
+        contents: a list of contents - attributes and child nodes
+        See comment at the top of the configuration file for details.
+    """
+    def __init__(self, name, contents):
+        self.name = name
+        self.all_entries = []
+        self.attr = []
+        self.child = []
+        self.seq_child = []
+
+        for entry in contents:
+            clean_entry = entry.rstrip('*')
+            self.all_entries.append(clean_entry)
+
+            if entry.endswith('**'):
+                self.seq_child.append(clean_entry)
+            elif entry.endswith('*'):
+                self.child.append(clean_entry)
+            else:
+                self.attr.append(entry)
+
+    def generate_source(self):
+        src = self._gen_init()
+        src += '\n' + self._gen_children()
+        src += '\n' + self._gen_attr_names()
+        return src
+
+    def _gen_init(self):
+        src = "class %s(Node):\n" % self.name
+
+        if self.all_entries:
+            args = ', '.join(self.all_entries)
+            slots = ', '.join("'{0}'".format(e) for e in self.all_entries)
+            slots += ", 'coord', '__weakref__'"
+            arglist = '(self, %s, coord=None)' % args
+        else:
+            slots = "'coord', '__weakref__'"
+            arglist = '(self, coord=None)'
+
+        src += "    __slots__ = (%s)\n" % slots
+        src += "    def __init__%s:\n" % arglist
+
+        for name in self.all_entries + ['coord']:
+            src += "        self.%s = %s\n" % (name, name)
+
+        return src
+
+    def _gen_children(self):
+        src = '    def children(self):\n'
+
+        if self.all_entries:
+            src += '        nodelist = []\n'
+
+            for child in self.child:
+                src += (
+                    '        if self.%(child)s is not None:' +
+                    ' nodelist.append(("%(child)s", self.%(child)s))\n') % (
+                        dict(child=child))
+
+            for seq_child in self.seq_child:
+                src += (
+                    '        for i, child in enumerate(self.%(child)s or []):\n'
+                    '            nodelist.append(("%(child)s[%%d]" %% i, child))\n') % (
+                        dict(child=seq_child))
+
+            src += '        return tuple(nodelist)\n'
+        else:
+            src += '        return ()\n'
+
+        return src
+
+    def _gen_attr_names(self):
+        src = "    attr_names = (" + ''.join("%r, " % nm for nm in self.attr) + ')'
+        return src
+
+
+_PROLOGUE_COMMENT = \
+r'''#-----------------------------------------------------------------
+# ** ATTENTION **
+# This code was automatically generated from the file:
+# $cfg_filename
+#
+# Do not modify it directly. Modify the configuration file and
+# run the generator again.
+# ** ** *** ** **
+#
+# pycparser: c_ast.py
+#
+# AST Node classes.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+
+'''
+
+_PROLOGUE_CODE = r'''
+import sys
+
+
+class Node(object):
+    __slots__ = ()
+    """ Abstract base class for AST nodes.
+    """
+    def children(self):
+        """ A sequence of all children that are Nodes
+        """
+        pass
+
+    def show(self, buf=sys.stdout, offset=0, attrnames=False, nodenames=False, showcoord=False, _my_node_name=None):
+        """ Pretty print the Node and all its attributes and
+            children (recursively) to a buffer.
+
+            buf:
+                Open IO buffer into which the Node is printed.
+
+            offset:
+                Initial offset (amount of leading spaces)
+
+            attrnames:
+                True if you want to see the attribute names in
+                name=value pairs. False to only see the values.
+
+            nodenames:
+                True if you want to see the actual node names
+                within their parents.
+
+            showcoord:
+                Do you want the coordinates of each Node to be
+                displayed.
+        """
+        lead = ' ' * offset
+        if nodenames and _my_node_name is not None:
+            buf.write(lead + self.__class__.__name__+ ' <' + _my_node_name + '>: ')
+        else:
+            buf.write(lead + self.__class__.__name__+ ': ')
+
+        if self.attr_names:
+            if attrnames:
+                nvlist = [(n, getattr(self,n)) for n in self.attr_names]
+                attrstr = ', '.join('%s=%s' % nv for nv in nvlist)
+            else:
+                vlist = [getattr(self, n) for n in self.attr_names]
+                attrstr = ', '.join('%s' % v for v in vlist)
+            buf.write(attrstr)
+
+        if showcoord:
+            buf.write(' (at %s)' % self.coord)
+        buf.write('\n')
+
+        for (child_name, child) in self.children():
+            child.show(
+                buf,
+                offset=offset + 2,
+                attrnames=attrnames,
+                nodenames=nodenames,
+                showcoord=showcoord,
+                _my_node_name=child_name)
+
+
+class NodeVisitor(object):
+    """ A base NodeVisitor class for visiting c_ast nodes.
+        Subclass it and define your own visit_XXX methods, where
+        XXX is the class name you want to visit with these
+        methods.
+
+        For example:
+
+        class ConstantVisitor(NodeVisitor):
+            def __init__(self):
+                self.values = []
+
+            def visit_Constant(self, node):
+                self.values.append(node.value)
+
+        Creates a list of values of all the constant nodes
+        encountered below the given node. To use it:
+
+        cv = ConstantVisitor()
+        cv.visit(node)
+
+        Notes:
+
+        *   generic_visit() will be called for AST nodes for which
+            no visit_XXX method was defined.
+        *   The children of nodes for which a visit_XXX was
+            defined will not be visited - if you need this, call
+            generic_visit() on the node.
+            You can use:
+                NodeVisitor.generic_visit(self, node)
+        *   Modeled after Python's own AST visiting facilities
+            (the ast module of Python 3.0)
+    """
+    def visit(self, node):
+        """ Visit a node.
+        """
+        method = 'visit_' + node.__class__.__name__
+        visitor = getattr(self, method, self.generic_visit)
+        return visitor(node)
+
+    def generic_visit(self, node):
+        """ Called if no explicit visitor function exists for a
+            node. Implements preorder visiting of the node.
+        """
+        for c_name, c in node.children():
+            self.visit(c)
+
+
+'''
+
+
+if __name__ == "__main__":
+    import sys
+    ast_gen = ASTCodeGenerator('_c_ast.cfg')
+    ast_gen.generate(open('c_ast.py', 'w'))
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/_build_tables.py b/venv/lib/python3.5/site-packages/pycparser/_build_tables.py
new file mode 100644
index 0000000..a8a9dcf
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/_build_tables.py
@@ -0,0 +1,33 @@
+#-----------------------------------------------------------------
+# pycparser: _build_tables.py
+#
+# A dummy for generating the lexing/parsing tables and and
+# compiling them into .pyc for faster execution in optimized mode.
+# Also generates AST code from the configuration file.
+# Should be called from the pycparser directory.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+
+# Generate c_ast.py
+from _ast_gen import ASTCodeGenerator
+ast_gen = ASTCodeGenerator('_c_ast.cfg')
+ast_gen.generate(open('c_ast.py', 'w'))
+
+import sys
+sys.path[0:0] = ['.', '..']
+from pycparser import c_parser
+
+# Generates the tables
+#
+c_parser.CParser(
+    lex_optimize=True,
+    yacc_debug=False,
+    yacc_optimize=True)
+
+# Load to compile into .pyc
+#
+import lextab
+import yacctab
+import c_ast
diff --git a/venv/lib/python3.5/site-packages/pycparser/_c_ast.cfg b/venv/lib/python3.5/site-packages/pycparser/_c_ast.cfg
new file mode 100644
index 0000000..7dfcd0c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/_c_ast.cfg
@@ -0,0 +1,191 @@
+#-----------------------------------------------------------------
+# pycparser: _c_ast.cfg
+#
+# Defines the AST Node classes used in pycparser.
+#
+# Each entry is a Node sub-class name, listing the attributes
+# and child nodes of the class:
+#   <name>*     - a child node
+#   <name>**    - a sequence of child nodes
+#   <name>      - an attribute
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+
+# ArrayDecl is a nested declaration of an array with the given type.
+# dim: the dimension (for example, constant 42)
+# dim_quals: list of dimension qualifiers, to support C99's allowing 'const'
+#            and 'static' within the array dimension in function declarations.
+ArrayDecl: [type*, dim*, dim_quals]
+
+ArrayRef: [name*, subscript*]
+
+# op: =, +=, /= etc.
+#
+Assignment: [op, lvalue*, rvalue*]
+
+BinaryOp: [op, left*, right*]
+
+Break: []
+
+Case: [expr*, stmts**]
+
+Cast: [to_type*, expr*]
+
+# Compound statement in C99 is a list of block items (declarations or
+# statements).
+#
+Compound: [block_items**]
+
+# Compound literal (anonymous aggregate) for C99.
+# (type-name) {initializer_list}
+# type: the typename
+# init: InitList for the initializer list
+#
+CompoundLiteral: [type*, init*]
+
+# type: int, char, float, etc. see CLexer for constant token types
+#
+Constant: [type, value]
+
+Continue: []
+
+# name: the variable being declared
+# quals: list of qualifiers (const, volatile)
+# funcspec: list function specifiers (i.e. inline in C99)
+# storage: list of storage specifiers (extern, register, etc.)
+# type: declaration type (probably nested with all the modifiers)
+# init: initialization value, or None
+# bitsize: bit field size, or None
+#
+Decl: [name, quals, storage, funcspec, type*, init*, bitsize*]
+
+DeclList: [decls**]
+
+Default: [stmts**]
+
+DoWhile: [cond*, stmt*]
+
+# Represents the ellipsis (...) parameter in a function
+# declaration
+#
+EllipsisParam: []
+
+# An empty statement (a semicolon ';' on its own)
+#
+EmptyStatement: []
+
+# Enumeration type specifier
+# name: an optional ID
+# values: an EnumeratorList
+#
+Enum: [name, values*]
+
+# A name/value pair for enumeration values
+#
+Enumerator: [name, value*]
+
+# A list of enumerators
+#
+EnumeratorList: [enumerators**]
+
+# A list of expressions separated by the comma operator.
+#
+ExprList: [exprs**]
+
+# This is the top of the AST, representing a single C file (a
+# translation unit in K&R jargon). It contains a list of
+# "external-declaration"s, which is either declarations (Decl),
+# Typedef or function definitions (FuncDef).
+#
+FileAST: [ext**]
+
+# for (init; cond; next) stmt
+#
+For: [init*, cond*, next*, stmt*]
+
+# name: Id
+# args: ExprList
+#
+FuncCall: [name*, args*]
+
+# type <decl>(args)
+#
+FuncDecl: [args*, type*]
+
+# Function definition: a declarator for the function name and
+# a body, which is a compound statement.
+# There's an optional list of parameter declarations for old
+# K&R-style definitions
+#
+FuncDef: [decl*, param_decls**, body*]
+
+Goto: [name]
+
+ID: [name]
+
+# Holder for types that are a simple identifier (e.g. the built
+# ins void, char etc. and typedef-defined types)
+#
+IdentifierType: [names]
+
+If: [cond*, iftrue*, iffalse*]
+
+# An initialization list used for compound literals.
+#
+InitList: [exprs**]
+
+Label: [name, stmt*]
+
+# A named initializer for C99.
+# The name of a NamedInitializer is a sequence of Nodes, because
+# names can be hierarchical and contain constant expressions.
+#
+NamedInitializer: [name**, expr*]
+
+# a list of comma separated function parameter declarations
+#
+ParamList: [params**]
+
+PtrDecl: [quals, type*]
+
+Return: [expr*]
+
+# name: struct tag name
+# decls: declaration of members
+#
+Struct: [name, decls**]
+
+# type: . or ->
+# name.field or name->field
+#
+StructRef: [name*, type, field*]
+
+Switch: [cond*, stmt*]
+
+# cond ? iftrue : iffalse
+#
+TernaryOp: [cond*, iftrue*, iffalse*]
+
+# A base type declaration
+#
+TypeDecl: [declname, quals, type*]
+
+# A typedef declaration.
+# Very similar to Decl, but without some attributes
+#
+Typedef: [name, quals, storage, type*]
+
+Typename: [name, quals, type*]
+
+UnaryOp: [op, expr*]
+
+# name: union tag name
+# decls: declaration of members
+#
+Union: [name, decls**]
+
+While: [cond*, stmt*]
+
+Pragma: [string]
diff --git a/venv/lib/python3.5/site-packages/pycparser/ast_transforms.py b/venv/lib/python3.5/site-packages/pycparser/ast_transforms.py
new file mode 100644
index 0000000..623821d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ast_transforms.py
@@ -0,0 +1,105 @@
+#------------------------------------------------------------------------------
+# pycparser: ast_transforms.py
+#
+# Some utilities used by the parser to create a friendlier AST.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#------------------------------------------------------------------------------
+
+from . import c_ast
+
+
+def fix_switch_cases(switch_node):
+    """ The 'case' statements in a 'switch' come out of parsing with one
+        child node, so subsequent statements are just tucked to the parent
+        Compound. Additionally, consecutive (fall-through) case statements
+        come out messy. This is a peculiarity of the C grammar. The following:
+
+            switch (myvar) {
+                case 10:
+                    k = 10;
+                    p = k + 1;
+                    return 10;
+                case 20:
+                case 30:
+                    return 20;
+                default:
+                    break;
+            }
+
+        Creates this tree (pseudo-dump):
+
+            Switch
+                ID: myvar
+                Compound:
+                    Case 10:
+                        k = 10
+                    p = k + 1
+                    return 10
+                    Case 20:
+                        Case 30:
+                            return 20
+                    Default:
+                        break
+
+        The goal of this transform is to fix this mess, turning it into the
+        following:
+
+            Switch
+                ID: myvar
+                Compound:
+                    Case 10:
+                        k = 10
+                        p = k + 1
+                        return 10
+                    Case 20:
+                    Case 30:
+                        return 20
+                    Default:
+                        break
+
+        A fixed AST node is returned. The argument may be modified.
+    """
+    assert isinstance(switch_node, c_ast.Switch)
+    if not isinstance(switch_node.stmt, c_ast.Compound):
+        return switch_node
+
+    # The new Compound child for the Switch, which will collect children in the
+    # correct order
+    new_compound = c_ast.Compound([], switch_node.stmt.coord)
+
+    # The last Case/Default node
+    last_case = None
+
+    # Goes over the children of the Compound below the Switch, adding them
+    # either directly below new_compound or below the last Case as appropriate
+    for child in switch_node.stmt.block_items:
+        if isinstance(child, (c_ast.Case, c_ast.Default)):
+            # If it's a Case/Default:
+            # 1. Add it to the Compound and mark as "last case"
+            # 2. If its immediate child is also a Case or Default, promote it
+            #    to a sibling.
+            new_compound.block_items.append(child)
+            _extract_nested_case(child, new_compound.block_items)
+            last_case = new_compound.block_items[-1]
+        else:
+            # Other statements are added as children to the last case, if it
+            # exists.
+            if last_case is None:
+                new_compound.block_items.append(child)
+            else:
+                last_case.stmts.append(child)
+
+    switch_node.stmt = new_compound
+    return switch_node
+
+
+def _extract_nested_case(case_node, stmts_list):
+    """ Recursively extract consecutive Case statements that are made nested
+        by the parser and add them to the stmts_list.
+    """
+    if isinstance(case_node.stmts[0], (c_ast.Case, c_ast.Default)):
+        stmts_list.append(case_node.stmts.pop())
+        _extract_nested_case(stmts_list[-1], stmts_list)
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/c_ast.py b/venv/lib/python3.5/site-packages/pycparser/c_ast.py
new file mode 100644
index 0000000..5e81648
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/c_ast.py
@@ -0,0 +1,809 @@
+#-----------------------------------------------------------------
+# ** ATTENTION **
+# This code was automatically generated from the file:
+# _c_ast.cfg
+#
+# Do not modify it directly. Modify the configuration file and
+# run the generator again.
+# ** ** *** ** **
+#
+# pycparser: c_ast.py
+#
+# AST Node classes.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+
+
+import sys
+
+
+class Node(object):
+    __slots__ = ()
+    """ Abstract base class for AST nodes.
+    """
+    def children(self):
+        """ A sequence of all children that are Nodes
+        """
+        pass
+
+    def show(self, buf=sys.stdout, offset=0, attrnames=False, nodenames=False, showcoord=False, _my_node_name=None):
+        """ Pretty print the Node and all its attributes and
+            children (recursively) to a buffer.
+
+            buf:
+                Open IO buffer into which the Node is printed.
+
+            offset:
+                Initial offset (amount of leading spaces)
+
+            attrnames:
+                True if you want to see the attribute names in
+                name=value pairs. False to only see the values.
+
+            nodenames:
+                True if you want to see the actual node names
+                within their parents.
+
+            showcoord:
+                Do you want the coordinates of each Node to be
+                displayed.
+        """
+        lead = ' ' * offset
+        if nodenames and _my_node_name is not None:
+            buf.write(lead + self.__class__.__name__+ ' <' + _my_node_name + '>: ')
+        else:
+            buf.write(lead + self.__class__.__name__+ ': ')
+
+        if self.attr_names:
+            if attrnames:
+                nvlist = [(n, getattr(self,n)) for n in self.attr_names]
+                attrstr = ', '.join('%s=%s' % nv for nv in nvlist)
+            else:
+                vlist = [getattr(self, n) for n in self.attr_names]
+                attrstr = ', '.join('%s' % v for v in vlist)
+            buf.write(attrstr)
+
+        if showcoord:
+            buf.write(' (at %s)' % self.coord)
+        buf.write('\n')
+
+        for (child_name, child) in self.children():
+            child.show(
+                buf,
+                offset=offset + 2,
+                attrnames=attrnames,
+                nodenames=nodenames,
+                showcoord=showcoord,
+                _my_node_name=child_name)
+
+
+class NodeVisitor(object):
+    """ A base NodeVisitor class for visiting c_ast nodes.
+        Subclass it and define your own visit_XXX methods, where
+        XXX is the class name you want to visit with these
+        methods.
+
+        For example:
+
+        class ConstantVisitor(NodeVisitor):
+            def __init__(self):
+                self.values = []
+
+            def visit_Constant(self, node):
+                self.values.append(node.value)
+
+        Creates a list of values of all the constant nodes
+        encountered below the given node. To use it:
+
+        cv = ConstantVisitor()
+        cv.visit(node)
+
+        Notes:
+
+        *   generic_visit() will be called for AST nodes for which
+            no visit_XXX method was defined.
+        *   The children of nodes for which a visit_XXX was
+            defined will not be visited - if you need this, call
+            generic_visit() on the node.
+            You can use:
+                NodeVisitor.generic_visit(self, node)
+        *   Modeled after Python's own AST visiting facilities
+            (the ast module of Python 3.0)
+    """
+    def visit(self, node):
+        """ Visit a node.
+        """
+        method = 'visit_' + node.__class__.__name__
+        visitor = getattr(self, method, self.generic_visit)
+        return visitor(node)
+
+    def generic_visit(self, node):
+        """ Called if no explicit visitor function exists for a
+            node. Implements preorder visiting of the node.
+        """
+        for c_name, c in node.children():
+            self.visit(c)
+
+
+class ArrayDecl(Node):
+    __slots__ = ('type', 'dim', 'dim_quals', 'coord', '__weakref__')
+    def __init__(self, type, dim, dim_quals, coord=None):
+        self.type = type
+        self.dim = dim
+        self.dim_quals = dim_quals
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        if self.dim is not None: nodelist.append(("dim", self.dim))
+        return tuple(nodelist)
+
+    attr_names = ('dim_quals', )
+
+class ArrayRef(Node):
+    __slots__ = ('name', 'subscript', 'coord', '__weakref__')
+    def __init__(self, name, subscript, coord=None):
+        self.name = name
+        self.subscript = subscript
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.name is not None: nodelist.append(("name", self.name))
+        if self.subscript is not None: nodelist.append(("subscript", self.subscript))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Assignment(Node):
+    __slots__ = ('op', 'lvalue', 'rvalue', 'coord', '__weakref__')
+    def __init__(self, op, lvalue, rvalue, coord=None):
+        self.op = op
+        self.lvalue = lvalue
+        self.rvalue = rvalue
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.lvalue is not None: nodelist.append(("lvalue", self.lvalue))
+        if self.rvalue is not None: nodelist.append(("rvalue", self.rvalue))
+        return tuple(nodelist)
+
+    attr_names = ('op', )
+
+class BinaryOp(Node):
+    __slots__ = ('op', 'left', 'right', 'coord', '__weakref__')
+    def __init__(self, op, left, right, coord=None):
+        self.op = op
+        self.left = left
+        self.right = right
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.left is not None: nodelist.append(("left", self.left))
+        if self.right is not None: nodelist.append(("right", self.right))
+        return tuple(nodelist)
+
+    attr_names = ('op', )
+
+class Break(Node):
+    __slots__ = ('coord', '__weakref__')
+    def __init__(self, coord=None):
+        self.coord = coord
+
+    def children(self):
+        return ()
+
+    attr_names = ()
+
+class Case(Node):
+    __slots__ = ('expr', 'stmts', 'coord', '__weakref__')
+    def __init__(self, expr, stmts, coord=None):
+        self.expr = expr
+        self.stmts = stmts
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.expr is not None: nodelist.append(("expr", self.expr))
+        for i, child in enumerate(self.stmts or []):
+            nodelist.append(("stmts[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Cast(Node):
+    __slots__ = ('to_type', 'expr', 'coord', '__weakref__')
+    def __init__(self, to_type, expr, coord=None):
+        self.to_type = to_type
+        self.expr = expr
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.to_type is not None: nodelist.append(("to_type", self.to_type))
+        if self.expr is not None: nodelist.append(("expr", self.expr))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Compound(Node):
+    __slots__ = ('block_items', 'coord', '__weakref__')
+    def __init__(self, block_items, coord=None):
+        self.block_items = block_items
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.block_items or []):
+            nodelist.append(("block_items[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class CompoundLiteral(Node):
+    __slots__ = ('type', 'init', 'coord', '__weakref__')
+    def __init__(self, type, init, coord=None):
+        self.type = type
+        self.init = init
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        if self.init is not None: nodelist.append(("init", self.init))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Constant(Node):
+    __slots__ = ('type', 'value', 'coord', '__weakref__')
+    def __init__(self, type, value, coord=None):
+        self.type = type
+        self.value = value
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        return tuple(nodelist)
+
+    attr_names = ('type', 'value', )
+
+class Continue(Node):
+    __slots__ = ('coord', '__weakref__')
+    def __init__(self, coord=None):
+        self.coord = coord
+
+    def children(self):
+        return ()
+
+    attr_names = ()
+
+class Decl(Node):
+    __slots__ = ('name', 'quals', 'storage', 'funcspec', 'type', 'init', 'bitsize', 'coord', '__weakref__')
+    def __init__(self, name, quals, storage, funcspec, type, init, bitsize, coord=None):
+        self.name = name
+        self.quals = quals
+        self.storage = storage
+        self.funcspec = funcspec
+        self.type = type
+        self.init = init
+        self.bitsize = bitsize
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        if self.init is not None: nodelist.append(("init", self.init))
+        if self.bitsize is not None: nodelist.append(("bitsize", self.bitsize))
+        return tuple(nodelist)
+
+    attr_names = ('name', 'quals', 'storage', 'funcspec', )
+
+class DeclList(Node):
+    __slots__ = ('decls', 'coord', '__weakref__')
+    def __init__(self, decls, coord=None):
+        self.decls = decls
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.decls or []):
+            nodelist.append(("decls[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Default(Node):
+    __slots__ = ('stmts', 'coord', '__weakref__')
+    def __init__(self, stmts, coord=None):
+        self.stmts = stmts
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.stmts or []):
+            nodelist.append(("stmts[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class DoWhile(Node):
+    __slots__ = ('cond', 'stmt', 'coord', '__weakref__')
+    def __init__(self, cond, stmt, coord=None):
+        self.cond = cond
+        self.stmt = stmt
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.stmt is not None: nodelist.append(("stmt", self.stmt))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class EllipsisParam(Node):
+    __slots__ = ('coord', '__weakref__')
+    def __init__(self, coord=None):
+        self.coord = coord
+
+    def children(self):
+        return ()
+
+    attr_names = ()
+
+class EmptyStatement(Node):
+    __slots__ = ('coord', '__weakref__')
+    def __init__(self, coord=None):
+        self.coord = coord
+
+    def children(self):
+        return ()
+
+    attr_names = ()
+
+class Enum(Node):
+    __slots__ = ('name', 'values', 'coord', '__weakref__')
+    def __init__(self, name, values, coord=None):
+        self.name = name
+        self.values = values
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.values is not None: nodelist.append(("values", self.values))
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class Enumerator(Node):
+    __slots__ = ('name', 'value', 'coord', '__weakref__')
+    def __init__(self, name, value, coord=None):
+        self.name = name
+        self.value = value
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.value is not None: nodelist.append(("value", self.value))
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class EnumeratorList(Node):
+    __slots__ = ('enumerators', 'coord', '__weakref__')
+    def __init__(self, enumerators, coord=None):
+        self.enumerators = enumerators
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.enumerators or []):
+            nodelist.append(("enumerators[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class ExprList(Node):
+    __slots__ = ('exprs', 'coord', '__weakref__')
+    def __init__(self, exprs, coord=None):
+        self.exprs = exprs
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.exprs or []):
+            nodelist.append(("exprs[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class FileAST(Node):
+    __slots__ = ('ext', 'coord', '__weakref__')
+    def __init__(self, ext, coord=None):
+        self.ext = ext
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.ext or []):
+            nodelist.append(("ext[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class For(Node):
+    __slots__ = ('init', 'cond', 'next', 'stmt', 'coord', '__weakref__')
+    def __init__(self, init, cond, next, stmt, coord=None):
+        self.init = init
+        self.cond = cond
+        self.next = next
+        self.stmt = stmt
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.init is not None: nodelist.append(("init", self.init))
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.next is not None: nodelist.append(("next", self.next))
+        if self.stmt is not None: nodelist.append(("stmt", self.stmt))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class FuncCall(Node):
+    __slots__ = ('name', 'args', 'coord', '__weakref__')
+    def __init__(self, name, args, coord=None):
+        self.name = name
+        self.args = args
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.name is not None: nodelist.append(("name", self.name))
+        if self.args is not None: nodelist.append(("args", self.args))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class FuncDecl(Node):
+    __slots__ = ('args', 'type', 'coord', '__weakref__')
+    def __init__(self, args, type, coord=None):
+        self.args = args
+        self.type = type
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.args is not None: nodelist.append(("args", self.args))
+        if self.type is not None: nodelist.append(("type", self.type))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class FuncDef(Node):
+    __slots__ = ('decl', 'param_decls', 'body', 'coord', '__weakref__')
+    def __init__(self, decl, param_decls, body, coord=None):
+        self.decl = decl
+        self.param_decls = param_decls
+        self.body = body
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.decl is not None: nodelist.append(("decl", self.decl))
+        if self.body is not None: nodelist.append(("body", self.body))
+        for i, child in enumerate(self.param_decls or []):
+            nodelist.append(("param_decls[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Goto(Node):
+    __slots__ = ('name', 'coord', '__weakref__')
+    def __init__(self, name, coord=None):
+        self.name = name
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class ID(Node):
+    __slots__ = ('name', 'coord', '__weakref__')
+    def __init__(self, name, coord=None):
+        self.name = name
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class IdentifierType(Node):
+    __slots__ = ('names', 'coord', '__weakref__')
+    def __init__(self, names, coord=None):
+        self.names = names
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        return tuple(nodelist)
+
+    attr_names = ('names', )
+
+class If(Node):
+    __slots__ = ('cond', 'iftrue', 'iffalse', 'coord', '__weakref__')
+    def __init__(self, cond, iftrue, iffalse, coord=None):
+        self.cond = cond
+        self.iftrue = iftrue
+        self.iffalse = iffalse
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.iftrue is not None: nodelist.append(("iftrue", self.iftrue))
+        if self.iffalse is not None: nodelist.append(("iffalse", self.iffalse))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class InitList(Node):
+    __slots__ = ('exprs', 'coord', '__weakref__')
+    def __init__(self, exprs, coord=None):
+        self.exprs = exprs
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.exprs or []):
+            nodelist.append(("exprs[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Label(Node):
+    __slots__ = ('name', 'stmt', 'coord', '__weakref__')
+    def __init__(self, name, stmt, coord=None):
+        self.name = name
+        self.stmt = stmt
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.stmt is not None: nodelist.append(("stmt", self.stmt))
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class NamedInitializer(Node):
+    __slots__ = ('name', 'expr', 'coord', '__weakref__')
+    def __init__(self, name, expr, coord=None):
+        self.name = name
+        self.expr = expr
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.expr is not None: nodelist.append(("expr", self.expr))
+        for i, child in enumerate(self.name or []):
+            nodelist.append(("name[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class ParamList(Node):
+    __slots__ = ('params', 'coord', '__weakref__')
+    def __init__(self, params, coord=None):
+        self.params = params
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.params or []):
+            nodelist.append(("params[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class PtrDecl(Node):
+    __slots__ = ('quals', 'type', 'coord', '__weakref__')
+    def __init__(self, quals, type, coord=None):
+        self.quals = quals
+        self.type = type
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        return tuple(nodelist)
+
+    attr_names = ('quals', )
+
+class Return(Node):
+    __slots__ = ('expr', 'coord', '__weakref__')
+    def __init__(self, expr, coord=None):
+        self.expr = expr
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.expr is not None: nodelist.append(("expr", self.expr))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Struct(Node):
+    __slots__ = ('name', 'decls', 'coord', '__weakref__')
+    def __init__(self, name, decls, coord=None):
+        self.name = name
+        self.decls = decls
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.decls or []):
+            nodelist.append(("decls[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class StructRef(Node):
+    __slots__ = ('name', 'type', 'field', 'coord', '__weakref__')
+    def __init__(self, name, type, field, coord=None):
+        self.name = name
+        self.type = type
+        self.field = field
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.name is not None: nodelist.append(("name", self.name))
+        if self.field is not None: nodelist.append(("field", self.field))
+        return tuple(nodelist)
+
+    attr_names = ('type', )
+
+class Switch(Node):
+    __slots__ = ('cond', 'stmt', 'coord', '__weakref__')
+    def __init__(self, cond, stmt, coord=None):
+        self.cond = cond
+        self.stmt = stmt
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.stmt is not None: nodelist.append(("stmt", self.stmt))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class TernaryOp(Node):
+    __slots__ = ('cond', 'iftrue', 'iffalse', 'coord', '__weakref__')
+    def __init__(self, cond, iftrue, iffalse, coord=None):
+        self.cond = cond
+        self.iftrue = iftrue
+        self.iffalse = iffalse
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.iftrue is not None: nodelist.append(("iftrue", self.iftrue))
+        if self.iffalse is not None: nodelist.append(("iffalse", self.iffalse))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class TypeDecl(Node):
+    __slots__ = ('declname', 'quals', 'type', 'coord', '__weakref__')
+    def __init__(self, declname, quals, type, coord=None):
+        self.declname = declname
+        self.quals = quals
+        self.type = type
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        return tuple(nodelist)
+
+    attr_names = ('declname', 'quals', )
+
+class Typedef(Node):
+    __slots__ = ('name', 'quals', 'storage', 'type', 'coord', '__weakref__')
+    def __init__(self, name, quals, storage, type, coord=None):
+        self.name = name
+        self.quals = quals
+        self.storage = storage
+        self.type = type
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        return tuple(nodelist)
+
+    attr_names = ('name', 'quals', 'storage', )
+
+class Typename(Node):
+    __slots__ = ('name', 'quals', 'type', 'coord', '__weakref__')
+    def __init__(self, name, quals, type, coord=None):
+        self.name = name
+        self.quals = quals
+        self.type = type
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.type is not None: nodelist.append(("type", self.type))
+        return tuple(nodelist)
+
+    attr_names = ('name', 'quals', )
+
+class UnaryOp(Node):
+    __slots__ = ('op', 'expr', 'coord', '__weakref__')
+    def __init__(self, op, expr, coord=None):
+        self.op = op
+        self.expr = expr
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.expr is not None: nodelist.append(("expr", self.expr))
+        return tuple(nodelist)
+
+    attr_names = ('op', )
+
+class Union(Node):
+    __slots__ = ('name', 'decls', 'coord', '__weakref__')
+    def __init__(self, name, decls, coord=None):
+        self.name = name
+        self.decls = decls
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        for i, child in enumerate(self.decls or []):
+            nodelist.append(("decls[%d]" % i, child))
+        return tuple(nodelist)
+
+    attr_names = ('name', )
+
+class While(Node):
+    __slots__ = ('cond', 'stmt', 'coord', '__weakref__')
+    def __init__(self, cond, stmt, coord=None):
+        self.cond = cond
+        self.stmt = stmt
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        if self.cond is not None: nodelist.append(("cond", self.cond))
+        if self.stmt is not None: nodelist.append(("stmt", self.stmt))
+        return tuple(nodelist)
+
+    attr_names = ()
+
+class Pragma(Node):
+    __slots__ = ('string', 'coord', '__weakref__')
+    def __init__(self, string, coord=None):
+        self.string = string
+        self.coord = coord
+
+    def children(self):
+        nodelist = []
+        return tuple(nodelist)
+
+    attr_names = ('string', )
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/c_generator.py b/venv/lib/python3.5/site-packages/pycparser/c_generator.py
new file mode 100644
index 0000000..73e7f1b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/c_generator.py
@@ -0,0 +1,411 @@
+#------------------------------------------------------------------------------
+# pycparser: c_generator.py
+#
+# C code generator from pycparser AST nodes.
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#------------------------------------------------------------------------------
+from . import c_ast
+
+
+class CGenerator(object):
+    """ Uses the same visitor pattern as c_ast.NodeVisitor, but modified to
+        return a value from each visit method, using string accumulation in
+        generic_visit.
+    """
+    def __init__(self):
+        # Statements start with indentation of self.indent_level spaces, using
+        # the _make_indent method
+        #
+        self.indent_level = 0
+
+    def _make_indent(self):
+        return ' ' * self.indent_level
+
+    def visit(self, node):
+        method = 'visit_' + node.__class__.__name__
+        return getattr(self, method, self.generic_visit)(node)
+
+    def generic_visit(self, node):
+        #~ print('generic:', type(node))
+        if node is None:
+            return ''
+        else:
+            return ''.join(self.visit(c) for c_name, c in node.children())
+
+    def visit_Constant(self, n):
+        return n.value
+
+    def visit_ID(self, n):
+        return n.name
+    
+    def visit_Pragma(self, n):
+        ret = '#pragma'
+        if n.string:
+            ret += ' ' + n.string
+        return ret
+
+    def visit_ArrayRef(self, n):
+        arrref = self._parenthesize_unless_simple(n.name)
+        return arrref + '[' + self.visit(n.subscript) + ']'
+
+    def visit_StructRef(self, n):
+        sref = self._parenthesize_unless_simple(n.name)
+        return sref + n.type + self.visit(n.field)
+
+    def visit_FuncCall(self, n):
+        fref = self._parenthesize_unless_simple(n.name)
+        return fref + '(' + self.visit(n.args) + ')'
+
+    def visit_UnaryOp(self, n):
+        operand = self._parenthesize_unless_simple(n.expr)
+        if n.op == 'p++':
+            return '%s++' % operand
+        elif n.op == 'p--':
+            return '%s--' % operand
+        elif n.op == 'sizeof':
+            # Always parenthesize the argument of sizeof since it can be
+            # a name.
+            return 'sizeof(%s)' % self.visit(n.expr)
+        else:
+            return '%s%s' % (n.op, operand)
+
+    def visit_BinaryOp(self, n):
+        lval_str = self._parenthesize_if(n.left,
+                            lambda d: not self._is_simple_node(d))
+        rval_str = self._parenthesize_if(n.right,
+                            lambda d: not self._is_simple_node(d))
+        return '%s %s %s' % (lval_str, n.op, rval_str)
+
+    def visit_Assignment(self, n):
+        rval_str = self._parenthesize_if(
+                            n.rvalue,
+                            lambda n: isinstance(n, c_ast.Assignment))
+        return '%s %s %s' % (self.visit(n.lvalue), n.op, rval_str)
+
+    def visit_IdentifierType(self, n):
+        return ' '.join(n.names)
+
+    def _visit_expr(self, n):
+        if isinstance(n, c_ast.InitList):
+            return '{' + self.visit(n) + '}'
+        elif isinstance(n, c_ast.ExprList):
+            return '(' + self.visit(n) + ')'
+        else:
+            return self.visit(n)
+
+    def visit_Decl(self, n, no_type=False):
+        # no_type is used when a Decl is part of a DeclList, where the type is
+        # explicitly only for the first declaration in a list.
+        #
+        s = n.name if no_type else self._generate_decl(n)
+        if n.bitsize: s += ' : ' + self.visit(n.bitsize)
+        if n.init:
+            s += ' = ' + self._visit_expr(n.init)
+        return s
+
+    def visit_DeclList(self, n):
+        s = self.visit(n.decls[0])
+        if len(n.decls) > 1:
+            s += ', ' + ', '.join(self.visit_Decl(decl, no_type=True)
+                                    for decl in n.decls[1:])
+        return s
+
+    def visit_Typedef(self, n):
+        s = ''
+        if n.storage: s += ' '.join(n.storage) + ' '
+        s += self._generate_type(n.type)
+        return s
+
+    def visit_Cast(self, n):
+        s = '(' + self._generate_type(n.to_type) + ')'
+        return s + ' ' + self._parenthesize_unless_simple(n.expr)
+
+    def visit_ExprList(self, n):
+        visited_subexprs = []
+        for expr in n.exprs:
+            visited_subexprs.append(self._visit_expr(expr))
+        return ', '.join(visited_subexprs)
+
+    def visit_InitList(self, n):
+        visited_subexprs = []
+        for expr in n.exprs:
+            visited_subexprs.append(self._visit_expr(expr))
+        return ', '.join(visited_subexprs)
+
+    def visit_Enum(self, n):
+        s = 'enum'
+        if n.name: s += ' ' + n.name
+        if n.values:
+            s += ' {'
+            for i, enumerator in enumerate(n.values.enumerators):
+                s += enumerator.name
+                if enumerator.value:
+                    s += ' = ' + self.visit(enumerator.value)
+                if i != len(n.values.enumerators) - 1:
+                    s += ', '
+            s += '}'
+        return s
+
+    def visit_FuncDef(self, n):
+        decl = self.visit(n.decl)
+        self.indent_level = 0
+        body = self.visit(n.body)
+        if n.param_decls:
+            knrdecls = ';\n'.join(self.visit(p) for p in n.param_decls)
+            return decl + '\n' + knrdecls + ';\n' + body + '\n'
+        else:
+            return decl + '\n' + body + '\n'
+
+    def visit_FileAST(self, n):
+        s = ''
+        for ext in n.ext:
+            if isinstance(ext, c_ast.FuncDef):
+                s += self.visit(ext)
+            elif isinstance(ext, c_ast.Pragma):
+                s += self.visit(ext) + '\n'
+            else:
+                s += self.visit(ext) + ';\n'
+        return s
+
+    def visit_Compound(self, n):
+        s = self._make_indent() + '{\n'
+        self.indent_level += 2
+        if n.block_items:
+            s += ''.join(self._generate_stmt(stmt) for stmt in n.block_items)
+        self.indent_level -= 2
+        s += self._make_indent() + '}\n'
+        return s
+
+    def visit_CompoundLiteral(self, n):
+        return '(' + self.visit(n.type) + '){' + self.visit(n.init) + '}'
+
+
+    def visit_EmptyStatement(self, n):
+        return ';'
+
+    def visit_ParamList(self, n):
+        return ', '.join(self.visit(param) for param in n.params)
+
+    def visit_Return(self, n):
+        s = 'return'
+        if n.expr: s += ' ' + self.visit(n.expr)
+        return s + ';'
+
+    def visit_Break(self, n):
+        return 'break;'
+
+    def visit_Continue(self, n):
+        return 'continue;'
+
+    def visit_TernaryOp(self, n):
+        s  = '(' + self._visit_expr(n.cond) + ') ? '
+        s += '(' + self._visit_expr(n.iftrue) + ') : '
+        s += '(' + self._visit_expr(n.iffalse) + ')'
+        return s
+
+    def visit_If(self, n):
+        s = 'if ('
+        if n.cond: s += self.visit(n.cond)
+        s += ')\n'
+        s += self._generate_stmt(n.iftrue, add_indent=True)
+        if n.iffalse:
+            s += self._make_indent() + 'else\n'
+            s += self._generate_stmt(n.iffalse, add_indent=True)
+        return s
+
+    def visit_For(self, n):
+        s = 'for ('
+        if n.init: s += self.visit(n.init)
+        s += ';'
+        if n.cond: s += ' ' + self.visit(n.cond)
+        s += ';'
+        if n.next: s += ' ' + self.visit(n.next)
+        s += ')\n'
+        s += self._generate_stmt(n.stmt, add_indent=True)
+        return s
+
+    def visit_While(self, n):
+        s = 'while ('
+        if n.cond: s += self.visit(n.cond)
+        s += ')\n'
+        s += self._generate_stmt(n.stmt, add_indent=True)
+        return s
+
+    def visit_DoWhile(self, n):
+        s = 'do\n'
+        s += self._generate_stmt(n.stmt, add_indent=True)
+        s += self._make_indent() + 'while ('
+        if n.cond: s += self.visit(n.cond)
+        s += ');'
+        return s
+
+    def visit_Switch(self, n):
+        s = 'switch (' + self.visit(n.cond) + ')\n'
+        s += self._generate_stmt(n.stmt, add_indent=True)
+        return s
+
+    def visit_Case(self, n):
+        s = 'case ' + self.visit(n.expr) + ':\n'
+        for stmt in n.stmts:
+            s += self._generate_stmt(stmt, add_indent=True)
+        return s
+
+    def visit_Default(self, n):
+        s = 'default:\n'
+        for stmt in n.stmts:
+            s += self._generate_stmt(stmt, add_indent=True)
+        return s
+
+    def visit_Label(self, n):
+        return n.name + ':\n' + self._generate_stmt(n.stmt)
+
+    def visit_Goto(self, n):
+        return 'goto ' + n.name + ';'
+
+    def visit_EllipsisParam(self, n):
+        return '...'
+
+    def visit_Struct(self, n):
+        return self._generate_struct_union(n, 'struct')
+
+    def visit_Typename(self, n):
+        return self._generate_type(n.type)
+
+    def visit_Union(self, n):
+        return self._generate_struct_union(n, 'union')
+
+    def visit_NamedInitializer(self, n):
+        s = ''
+        for name in n.name:
+            if isinstance(name, c_ast.ID):
+                s += '.' + name.name
+            elif isinstance(name, c_ast.Constant):
+                s += '[' + name.value + ']'
+        s += ' = ' + self._visit_expr(n.expr)
+        return s
+
+    def visit_FuncDecl(self, n):
+        return self._generate_type(n)
+
+    def _generate_struct_union(self, n, name):
+        """ Generates code for structs and unions. name should be either
+            'struct' or union.
+        """
+        s = name + ' ' + (n.name or '')
+        if n.decls:
+            s += '\n'
+            s += self._make_indent()
+            self.indent_level += 2
+            s += '{\n'
+            for decl in n.decls:
+                s += self._generate_stmt(decl)
+            self.indent_level -= 2
+            s += self._make_indent() + '}'
+        return s
+
+    def _generate_stmt(self, n, add_indent=False):
+        """ Generation from a statement node. This method exists as a wrapper
+            for individual visit_* methods to handle different treatment of
+            some statements in this context.
+        """
+        typ = type(n)
+        if add_indent: self.indent_level += 2
+        indent = self._make_indent()
+        if add_indent: self.indent_level -= 2
+
+        if typ in (
+                c_ast.Decl, c_ast.Assignment, c_ast.Cast, c_ast.UnaryOp,
+                c_ast.BinaryOp, c_ast.TernaryOp, c_ast.FuncCall, c_ast.ArrayRef,
+                c_ast.StructRef, c_ast.Constant, c_ast.ID, c_ast.Typedef,
+                c_ast.ExprList):
+            # These can also appear in an expression context so no semicolon
+            # is added to them automatically
+            #
+            return indent + self.visit(n) + ';\n'
+        elif typ in (c_ast.Compound,):
+            # No extra indentation required before the opening brace of a
+            # compound - because it consists of multiple lines it has to
+            # compute its own indentation.
+            #
+            return self.visit(n)
+        else:
+            return indent + self.visit(n) + '\n'
+
+    def _generate_decl(self, n):
+        """ Generation from a Decl node.
+        """
+        s = ''
+        if n.funcspec: s = ' '.join(n.funcspec) + ' '
+        if n.storage: s += ' '.join(n.storage) + ' '
+        s += self._generate_type(n.type)
+        return s
+
+    def _generate_type(self, n, modifiers=[]):
+        """ Recursive generation from a type node. n is the type node.
+            modifiers collects the PtrDecl, ArrayDecl and FuncDecl modifiers
+            encountered on the way down to a TypeDecl, to allow proper
+            generation from it.
+        """
+        typ = type(n)
+        #~ print(n, modifiers)
+
+        if typ == c_ast.TypeDecl:
+            s = ''
+            if n.quals: s += ' '.join(n.quals) + ' '
+            s += self.visit(n.type)
+
+            nstr = n.declname if n.declname else ''
+            # Resolve modifiers.
+            # Wrap in parens to distinguish pointer to array and pointer to
+            # function syntax.
+            #
+            for i, modifier in enumerate(modifiers):
+                if isinstance(modifier, c_ast.ArrayDecl):
+                    if (i != 0 and isinstance(modifiers[i - 1], c_ast.PtrDecl)):
+                        nstr = '(' + nstr + ')'
+                    nstr += '[' + self.visit(modifier.dim) + ']'
+                elif isinstance(modifier, c_ast.FuncDecl):
+                    if (i != 0 and isinstance(modifiers[i - 1], c_ast.PtrDecl)):
+                        nstr = '(' + nstr + ')'
+                    nstr += '(' + self.visit(modifier.args) + ')'
+                elif isinstance(modifier, c_ast.PtrDecl):
+                    if modifier.quals:
+                        nstr = '* %s %s' % (' '.join(modifier.quals), nstr)
+                    else:
+                        nstr = '*' + nstr
+            if nstr: s += ' ' + nstr
+            return s
+        elif typ == c_ast.Decl:
+            return self._generate_decl(n.type)
+        elif typ == c_ast.Typename:
+            return self._generate_type(n.type)
+        elif typ == c_ast.IdentifierType:
+            return ' '.join(n.names) + ' '
+        elif typ in (c_ast.ArrayDecl, c_ast.PtrDecl, c_ast.FuncDecl):
+            return self._generate_type(n.type, modifiers + [n])
+        else:
+            return self.visit(n)
+
+    def _parenthesize_if(self, n, condition):
+        """ Visits 'n' and returns its string representation, parenthesized
+            if the condition function applied to the node returns True.
+        """
+        s = self._visit_expr(n)
+        if condition(n):
+            return '(' + s + ')'
+        else:
+            return s
+
+    def _parenthesize_unless_simple(self, n):
+        """ Common use case for _parenthesize_if
+        """
+        return self._parenthesize_if(n, lambda d: not self._is_simple_node(d))
+
+    def _is_simple_node(self, n):
+        """ Returns True for nodes that are "simple" - i.e. nodes that always
+            have higher precedence than operators.
+        """
+        return isinstance(n,(   c_ast.Constant, c_ast.ID, c_ast.ArrayRef,
+                                c_ast.StructRef, c_ast.FuncCall))
diff --git a/venv/lib/python3.5/site-packages/pycparser/c_lexer.py b/venv/lib/python3.5/site-packages/pycparser/c_lexer.py
new file mode 100644
index 0000000..d9941c1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/c_lexer.py
@@ -0,0 +1,485 @@
+#------------------------------------------------------------------------------
+# pycparser: c_lexer.py
+#
+# CLexer class: lexer for the C language
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#------------------------------------------------------------------------------
+import re
+import sys
+
+from .ply import lex
+from .ply.lex import TOKEN
+
+
+class CLexer(object):
+    """ A lexer for the C language. After building it, set the
+        input text with input(), and call token() to get new
+        tokens.
+
+        The public attribute filename can be set to an initial
+        filaneme, but the lexer will update it upon #line
+        directives.
+    """
+    def __init__(self, error_func, on_lbrace_func, on_rbrace_func,
+                 type_lookup_func):
+        """ Create a new Lexer.
+
+            error_func:
+                An error function. Will be called with an error
+                message, line and column as arguments, in case of
+                an error during lexing.
+
+            on_lbrace_func, on_rbrace_func:
+                Called when an LBRACE or RBRACE is encountered
+                (likely to push/pop type_lookup_func's scope)
+
+            type_lookup_func:
+                A type lookup function. Given a string, it must
+                return True IFF this string is a name of a type
+                that was defined with a typedef earlier.
+        """
+        self.error_func = error_func
+        self.on_lbrace_func = on_lbrace_func
+        self.on_rbrace_func = on_rbrace_func
+        self.type_lookup_func = type_lookup_func
+        self.filename = ''
+
+        # Keeps track of the last token returned from self.token()
+        self.last_token = None
+
+        # Allow either "# line" or "# <num>" to support GCC's
+        # cpp output
+        #
+        self.line_pattern = re.compile(r'([ \t]*line\W)|([ \t]*\d+)')
+        self.pragma_pattern = re.compile(r'[ \t]*pragma\W')
+
+    def build(self, **kwargs):
+        """ Builds the lexer from the specification. Must be
+            called after the lexer object is created.
+
+            This method exists separately, because the PLY
+            manual warns against calling lex.lex inside
+            __init__
+        """
+        self.lexer = lex.lex(object=self, **kwargs)
+
+    def reset_lineno(self):
+        """ Resets the internal line number counter of the lexer.
+        """
+        self.lexer.lineno = 1
+
+    def input(self, text):
+        self.lexer.input(text)
+
+    def token(self):
+        self.last_token = self.lexer.token()
+        return self.last_token
+
+    def find_tok_column(self, token):
+        """ Find the column of the token in its line.
+        """
+        last_cr = self.lexer.lexdata.rfind('\n', 0, token.lexpos)
+        return token.lexpos - last_cr
+
+    ######################--   PRIVATE   --######################
+
+    ##
+    ## Internal auxiliary methods
+    ##
+    def _error(self, msg, token):
+        location = self._make_tok_location(token)
+        self.error_func(msg, location[0], location[1])
+        self.lexer.skip(1)
+
+    def _make_tok_location(self, token):
+        return (token.lineno, self.find_tok_column(token))
+
+    ##
+    ## Reserved keywords
+    ##
+    keywords = (
+        '_BOOL', '_COMPLEX', 'AUTO', 'BREAK', 'CASE', 'CHAR', 'CONST',
+        'CONTINUE', 'DEFAULT', 'DO', 'DOUBLE', 'ELSE', 'ENUM', 'EXTERN',
+        'FLOAT', 'FOR', 'GOTO', 'IF', 'INLINE', 'INT', 'LONG',
+        'REGISTER', 'OFFSETOF',
+        'RESTRICT', 'RETURN', 'SHORT', 'SIGNED', 'SIZEOF', 'STATIC', 'STRUCT',
+        'SWITCH', 'TYPEDEF', 'UNION', 'UNSIGNED', 'VOID',
+        'VOLATILE', 'WHILE', '__INT128',
+    )
+
+    keyword_map = {}
+    for keyword in keywords:
+        if keyword == '_BOOL':
+            keyword_map['_Bool'] = keyword
+        elif keyword == '_COMPLEX':
+            keyword_map['_Complex'] = keyword
+        else:
+            keyword_map[keyword.lower()] = keyword
+
+    ##
+    ## All the tokens recognized by the lexer
+    ##
+    tokens = keywords + (
+        # Identifiers
+        'ID',
+
+        # Type identifiers (identifiers previously defined as
+        # types with typedef)
+        'TYPEID',
+
+        # constants
+        'INT_CONST_DEC', 'INT_CONST_OCT', 'INT_CONST_HEX', 'INT_CONST_BIN',
+        'FLOAT_CONST', 'HEX_FLOAT_CONST',
+        'CHAR_CONST',
+        'WCHAR_CONST',
+
+        # String literals
+        'STRING_LITERAL',
+        'WSTRING_LITERAL',
+
+        # Operators
+        'PLUS', 'MINUS', 'TIMES', 'DIVIDE', 'MOD',
+        'OR', 'AND', 'NOT', 'XOR', 'LSHIFT', 'RSHIFT',
+        'LOR', 'LAND', 'LNOT',
+        'LT', 'LE', 'GT', 'GE', 'EQ', 'NE',
+
+        # Assignment
+        'EQUALS', 'TIMESEQUAL', 'DIVEQUAL', 'MODEQUAL',
+        'PLUSEQUAL', 'MINUSEQUAL',
+        'LSHIFTEQUAL','RSHIFTEQUAL', 'ANDEQUAL', 'XOREQUAL',
+        'OREQUAL',
+
+        # Increment/decrement
+        'PLUSPLUS', 'MINUSMINUS',
+
+        # Structure dereference (->)
+        'ARROW',
+
+        # Conditional operator (?)
+        'CONDOP',
+
+        # Delimeters
+        'LPAREN', 'RPAREN',         # ( )
+        'LBRACKET', 'RBRACKET',     # [ ]
+        'LBRACE', 'RBRACE',         # { }
+        'COMMA', 'PERIOD',          # . ,
+        'SEMI', 'COLON',            # ; :
+
+        # Ellipsis (...)
+        'ELLIPSIS',
+
+        # pre-processor
+        'PPHASH',       # '#'
+        'PPPRAGMA',     # 'pragma'
+        'PPPRAGMASTR',
+    )
+
+    ##
+    ## Regexes for use in tokens
+    ##
+    ##
+
+    # valid C identifiers (K&R2: A.2.3), plus '$' (supported by some compilers)
+    identifier = r'[a-zA-Z_$][0-9a-zA-Z_$]*'
+
+    hex_prefix = '0[xX]'
+    hex_digits = '[0-9a-fA-F]+'
+    bin_prefix = '0[bB]'
+    bin_digits = '[01]+'
+
+    # integer constants (K&R2: A.2.5.1)
+    integer_suffix_opt = r'(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?'
+    decimal_constant = '(0'+integer_suffix_opt+')|([1-9][0-9]*'+integer_suffix_opt+')'
+    octal_constant = '0[0-7]*'+integer_suffix_opt
+    hex_constant = hex_prefix+hex_digits+integer_suffix_opt
+    bin_constant = bin_prefix+bin_digits+integer_suffix_opt
+
+    bad_octal_constant = '0[0-7]*[89]'
+
+    # character constants (K&R2: A.2.5.2)
+    # Note: a-zA-Z and '.-~^_!=&;,' are allowed as escape chars to support #line
+    # directives with Windows paths as filenames (..\..\dir\file)
+    # For the same reason, decimal_escape allows all digit sequences. We want to
+    # parse all correct code, even if it means to sometimes parse incorrect
+    # code.
+    #
+    simple_escape = r"""([a-zA-Z._~!=&\^\-\\?'"])"""
+    decimal_escape = r"""(\d+)"""
+    hex_escape = r"""(x[0-9a-fA-F]+)"""
+    bad_escape = r"""([\\][^a-zA-Z._~^!=&\^\-\\?'"x0-7])"""
+
+    escape_sequence = r"""(\\("""+simple_escape+'|'+decimal_escape+'|'+hex_escape+'))'
+    cconst_char = r"""([^'\\\n]|"""+escape_sequence+')'
+    char_const = "'"+cconst_char+"'"
+    wchar_const = 'L'+char_const
+    unmatched_quote = "('"+cconst_char+"*\\n)|('"+cconst_char+"*$)"
+    bad_char_const = r"""('"""+cconst_char+"""[^'\n]+')|('')|('"""+bad_escape+r"""[^'\n]*')"""
+
+    # string literals (K&R2: A.2.6)
+    string_char = r"""([^"\\\n]|"""+escape_sequence+')'
+    string_literal = '"'+string_char+'*"'
+    wstring_literal = 'L'+string_literal
+    bad_string_literal = '"'+string_char+'*?'+bad_escape+string_char+'*"'
+
+    # floating constants (K&R2: A.2.5.3)
+    exponent_part = r"""([eE][-+]?[0-9]+)"""
+    fractional_constant = r"""([0-9]*\.[0-9]+)|([0-9]+\.)"""
+    floating_constant = '(((('+fractional_constant+')'+exponent_part+'?)|([0-9]+'+exponent_part+'))[FfLl]?)'
+    binary_exponent_part = r'''([pP][+-]?[0-9]+)'''
+    hex_fractional_constant = '((('+hex_digits+r""")?\."""+hex_digits+')|('+hex_digits+r"""\.))"""
+    hex_floating_constant = '('+hex_prefix+'('+hex_digits+'|'+hex_fractional_constant+')'+binary_exponent_part+'[FfLl]?)'
+
+    ##
+    ## Lexer states: used for preprocessor \n-terminated directives
+    ##
+    states = (
+        # ppline: preprocessor line directives
+        #
+        ('ppline', 'exclusive'),
+
+        # pppragma: pragma
+        #
+        ('pppragma', 'exclusive'),
+    )
+
+    def t_PPHASH(self, t):
+        r'[ \t]*\#'
+        if self.line_pattern.match(t.lexer.lexdata, pos=t.lexer.lexpos):
+            t.lexer.begin('ppline')
+            self.pp_line = self.pp_filename = None
+        elif self.pragma_pattern.match(t.lexer.lexdata, pos=t.lexer.lexpos):
+            t.lexer.begin('pppragma')
+        else:
+            t.type = 'PPHASH'
+            return t
+
+    ##
+    ## Rules for the ppline state
+    ##
+    @TOKEN(string_literal)
+    def t_ppline_FILENAME(self, t):
+        if self.pp_line is None:
+            self._error('filename before line number in #line', t)
+        else:
+            self.pp_filename = t.value.lstrip('"').rstrip('"')
+
+    @TOKEN(decimal_constant)
+    def t_ppline_LINE_NUMBER(self, t):
+        if self.pp_line is None:
+            self.pp_line = t.value
+        else:
+            # Ignore: GCC's cpp sometimes inserts a numeric flag
+            # after the file name
+            pass
+
+    def t_ppline_NEWLINE(self, t):
+        r'\n'
+        if self.pp_line is None:
+            self._error('line number missing in #line', t)
+        else:
+            self.lexer.lineno = int(self.pp_line)
+
+            if self.pp_filename is not None:
+                self.filename = self.pp_filename
+
+        t.lexer.begin('INITIAL')
+
+    def t_ppline_PPLINE(self, t):
+        r'line'
+        pass
+
+    t_ppline_ignore = ' \t'
+
+    def t_ppline_error(self, t):
+        self._error('invalid #line directive', t)
+
+    ##
+    ## Rules for the pppragma state
+    ##
+    def t_pppragma_NEWLINE(self, t):
+        r'\n'
+        t.lexer.lineno += 1
+        t.lexer.begin('INITIAL')
+
+    def t_pppragma_PPPRAGMA(self, t):
+        r'pragma'
+        return t
+
+    t_pppragma_ignore = ' \t'
+
+    def t_pppragma_STR(self, t):
+        '.+'
+        t.type = 'PPPRAGMASTR'
+        return t
+
+    def t_pppragma_error(self, t):
+        self._error('invalid #pragma directive', t)
+
+    ##
+    ## Rules for the normal state
+    ##
+    t_ignore = ' \t'
+
+    # Newlines
+    def t_NEWLINE(self, t):
+        r'\n+'
+        t.lexer.lineno += t.value.count("\n")
+
+    # Operators
+    t_PLUS              = r'\+'
+    t_MINUS             = r'-'
+    t_TIMES             = r'\*'
+    t_DIVIDE            = r'/'
+    t_MOD               = r'%'
+    t_OR                = r'\|'
+    t_AND               = r'&'
+    t_NOT               = r'~'
+    t_XOR               = r'\^'
+    t_LSHIFT            = r'<<'
+    t_RSHIFT            = r'>>'
+    t_LOR               = r'\|\|'
+    t_LAND              = r'&&'
+    t_LNOT              = r'!'
+    t_LT                = r'<'
+    t_GT                = r'>'
+    t_LE                = r'<='
+    t_GE                = r'>='
+    t_EQ                = r'=='
+    t_NE                = r'!='
+
+    # Assignment operators
+    t_EQUALS            = r'='
+    t_TIMESEQUAL        = r'\*='
+    t_DIVEQUAL          = r'/='
+    t_MODEQUAL          = r'%='
+    t_PLUSEQUAL         = r'\+='
+    t_MINUSEQUAL        = r'-='
+    t_LSHIFTEQUAL       = r'<<='
+    t_RSHIFTEQUAL       = r'>>='
+    t_ANDEQUAL          = r'&='
+    t_OREQUAL           = r'\|='
+    t_XOREQUAL          = r'\^='
+
+    # Increment/decrement
+    t_PLUSPLUS          = r'\+\+'
+    t_MINUSMINUS        = r'--'
+
+    # ->
+    t_ARROW             = r'->'
+
+    # ?
+    t_CONDOP            = r'\?'
+
+    # Delimeters
+    t_LPAREN            = r'\('
+    t_RPAREN            = r'\)'
+    t_LBRACKET          = r'\['
+    t_RBRACKET          = r'\]'
+    t_COMMA             = r','
+    t_PERIOD            = r'\.'
+    t_SEMI              = r';'
+    t_COLON             = r':'
+    t_ELLIPSIS          = r'\.\.\.'
+
+    # Scope delimiters
+    # To see why on_lbrace_func is needed, consider:
+    #   typedef char TT;
+    #   void foo(int TT) { TT = 10; }
+    #   TT x = 5;
+    # Outside the function, TT is a typedef, but inside (starting and ending
+    # with the braces) it's a parameter.  The trouble begins with yacc's
+    # lookahead token.  If we open a new scope in brace_open, then TT has
+    # already been read and incorrectly interpreted as TYPEID.  So, we need
+    # to open and close scopes from within the lexer.
+    # Similar for the TT immediately outside the end of the function.
+    #
+    @TOKEN(r'\{')
+    def t_LBRACE(self, t):
+        self.on_lbrace_func()
+        return t
+    @TOKEN(r'\}')
+    def t_RBRACE(self, t):
+        self.on_rbrace_func()
+        return t
+
+    t_STRING_LITERAL = string_literal
+
+    # The following floating and integer constants are defined as
+    # functions to impose a strict order (otherwise, decimal
+    # is placed before the others because its regex is longer,
+    # and this is bad)
+    #
+    @TOKEN(floating_constant)
+    def t_FLOAT_CONST(self, t):
+        return t
+
+    @TOKEN(hex_floating_constant)
+    def t_HEX_FLOAT_CONST(self, t):
+        return t
+
+    @TOKEN(hex_constant)
+    def t_INT_CONST_HEX(self, t):
+        return t
+
+    @TOKEN(bin_constant)
+    def t_INT_CONST_BIN(self, t):
+        return t
+
+    @TOKEN(bad_octal_constant)
+    def t_BAD_CONST_OCT(self, t):
+        msg = "Invalid octal constant"
+        self._error(msg, t)
+
+    @TOKEN(octal_constant)
+    def t_INT_CONST_OCT(self, t):
+        return t
+
+    @TOKEN(decimal_constant)
+    def t_INT_CONST_DEC(self, t):
+        return t
+
+    # Must come before bad_char_const, to prevent it from
+    # catching valid char constants as invalid
+    #
+    @TOKEN(char_const)
+    def t_CHAR_CONST(self, t):
+        return t
+
+    @TOKEN(wchar_const)
+    def t_WCHAR_CONST(self, t):
+        return t
+
+    @TOKEN(unmatched_quote)
+    def t_UNMATCHED_QUOTE(self, t):
+        msg = "Unmatched '"
+        self._error(msg, t)
+
+    @TOKEN(bad_char_const)
+    def t_BAD_CHAR_CONST(self, t):
+        msg = "Invalid char constant %s" % t.value
+        self._error(msg, t)
+
+    @TOKEN(wstring_literal)
+    def t_WSTRING_LITERAL(self, t):
+        return t
+
+    # unmatched string literals are caught by the preprocessor
+
+    @TOKEN(bad_string_literal)
+    def t_BAD_STRING_LITERAL(self, t):
+        msg = "String contains invalid escape code"
+        self._error(msg, t)
+
+    @TOKEN(identifier)
+    def t_ID(self, t):
+        t.type = self.keyword_map.get(t.value, "ID")
+        if t.type == 'ID' and self.type_lookup_func(t.value):
+            t.type = "TYPEID"
+        return t
+
+    def t_error(self, t):
+        msg = 'Illegal character %s' % repr(t.value[0])
+        self._error(msg, t)
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/c_parser.py b/venv/lib/python3.5/site-packages/pycparser/c_parser.py
new file mode 100644
index 0000000..f84d6bc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/c_parser.py
@@ -0,0 +1,1782 @@
+#------------------------------------------------------------------------------
+# pycparser: c_parser.py
+#
+# CParser class: Parser and AST builder for the C language
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#------------------------------------------------------------------------------
+import re
+
+from .ply import yacc
+
+from . import c_ast
+from .c_lexer import CLexer
+from .plyparser import PLYParser, Coord, ParseError, parameterized, template
+from .ast_transforms import fix_switch_cases
+
+
+@template
+class CParser(PLYParser):
+    def __init__(
+            self,
+            lex_optimize=True,
+            lexer=CLexer,
+            lextab='pycparser.lextab',
+            yacc_optimize=True,
+            yacctab='pycparser.yacctab',
+            yacc_debug=False,
+            taboutputdir=''):
+        """ Create a new CParser.
+
+            Some arguments for controlling the debug/optimization
+            level of the parser are provided. The defaults are
+            tuned for release/performance mode.
+            The simple rules for using them are:
+            *) When tweaking CParser/CLexer, set these to False
+            *) When releasing a stable parser, set to True
+
+            lex_optimize:
+                Set to False when you're modifying the lexer.
+                Otherwise, changes in the lexer won't be used, if
+                some lextab.py file exists.
+                When releasing with a stable lexer, set to True
+                to save the re-generation of the lexer table on
+                each run.
+
+            lexer:
+                Set this parameter to define the lexer to use if
+                you're not using the default CLexer.
+
+            lextab:
+                Points to the lex table that's used for optimized
+                mode. Only if you're modifying the lexer and want
+                some tests to avoid re-generating the table, make
+                this point to a local lex table file (that's been
+                earlier generated with lex_optimize=True)
+
+            yacc_optimize:
+                Set to False when you're modifying the parser.
+                Otherwise, changes in the parser won't be used, if
+                some parsetab.py file exists.
+                When releasing with a stable parser, set to True
+                to save the re-generation of the parser table on
+                each run.
+
+            yacctab:
+                Points to the yacc table that's used for optimized
+                mode. Only if you're modifying the parser, make
+                this point to a local yacc table file
+
+            yacc_debug:
+                Generate a parser.out file that explains how yacc
+                built the parsing table from the grammar.
+
+            taboutputdir:
+                Set this parameter to control the location of generated
+                lextab and yacctab files.
+        """
+        self.clex = lexer(
+            error_func=self._lex_error_func,
+            on_lbrace_func=self._lex_on_lbrace_func,
+            on_rbrace_func=self._lex_on_rbrace_func,
+            type_lookup_func=self._lex_type_lookup_func)
+
+        self.clex.build(
+            optimize=lex_optimize,
+            lextab=lextab,
+            outputdir=taboutputdir)
+        self.tokens = self.clex.tokens
+
+        rules_with_opt = [
+            'abstract_declarator',
+            'assignment_expression',
+            'declaration_list',
+            'declaration_specifiers_no_type',
+            'designation',
+            'expression',
+            'identifier_list',
+            'init_declarator_list',
+            'id_init_declarator_list',
+            'initializer_list',
+            'parameter_type_list',
+            'block_item_list',
+            'type_qualifier_list',
+            'struct_declarator_list'
+        ]
+
+        for rule in rules_with_opt:
+            self._create_opt_rule(rule)
+
+        self.cparser = yacc.yacc(
+            module=self,
+            start='translation_unit_or_empty',
+            debug=yacc_debug,
+            optimize=yacc_optimize,
+            tabmodule=yacctab,
+            outputdir=taboutputdir)
+
+        # Stack of scopes for keeping track of symbols. _scope_stack[-1] is
+        # the current (topmost) scope. Each scope is a dictionary that
+        # specifies whether a name is a type. If _scope_stack[n][name] is
+        # True, 'name' is currently a type in the scope. If it's False,
+        # 'name' is used in the scope but not as a type (for instance, if we
+        # saw: int name;
+        # If 'name' is not a key in _scope_stack[n] then 'name' was not defined
+        # in this scope at all.
+        self._scope_stack = [dict()]
+
+        # Keeps track of the last token given to yacc (the lookahead token)
+        self._last_yielded_token = None
+
+    def parse(self, text, filename='', debuglevel=0):
+        """ Parses C code and returns an AST.
+
+            text:
+                A string containing the C source code
+
+            filename:
+                Name of the file being parsed (for meaningful
+                error messages)
+
+            debuglevel:
+                Debug level to yacc
+        """
+        self.clex.filename = filename
+        self.clex.reset_lineno()
+        self._scope_stack = [dict()]
+        self._last_yielded_token = None
+        return self.cparser.parse(
+                input=text,
+                lexer=self.clex,
+                debug=debuglevel)
+
+    ######################--   PRIVATE   --######################
+
+    def _push_scope(self):
+        self._scope_stack.append(dict())
+
+    def _pop_scope(self):
+        assert len(self._scope_stack) > 1
+        self._scope_stack.pop()
+
+    def _add_typedef_name(self, name, coord):
+        """ Add a new typedef name (ie a TYPEID) to the current scope
+        """
+        if not self._scope_stack[-1].get(name, True):
+            self._parse_error(
+                "Typedef %r previously declared as non-typedef "
+                "in this scope" % name, coord)
+        self._scope_stack[-1][name] = True
+
+    def _add_identifier(self, name, coord):
+        """ Add a new object, function, or enum member name (ie an ID) to the
+            current scope
+        """
+        if self._scope_stack[-1].get(name, False):
+            self._parse_error(
+                "Non-typedef %r previously declared as typedef "
+                "in this scope" % name, coord)
+        self._scope_stack[-1][name] = False
+
+    def _is_type_in_scope(self, name):
+        """ Is *name* a typedef-name in the current scope?
+        """
+        for scope in reversed(self._scope_stack):
+            # If name is an identifier in this scope it shadows typedefs in
+            # higher scopes.
+            in_scope = scope.get(name)
+            if in_scope is not None: return in_scope
+        return False
+
+    def _lex_error_func(self, msg, line, column):
+        self._parse_error(msg, self._coord(line, column))
+
+    def _lex_on_lbrace_func(self):
+        self._push_scope()
+
+    def _lex_on_rbrace_func(self):
+        self._pop_scope()
+
+    def _lex_type_lookup_func(self, name):
+        """ Looks up types that were previously defined with
+            typedef.
+            Passed to the lexer for recognizing identifiers that
+            are types.
+        """
+        is_type = self._is_type_in_scope(name)
+        return is_type
+
+    def _get_yacc_lookahead_token(self):
+        """ We need access to yacc's lookahead token in certain cases.
+            This is the last token yacc requested from the lexer, so we
+            ask the lexer.
+        """
+        return self.clex.last_token
+
+    # To understand what's going on here, read sections A.8.5 and
+    # A.8.6 of K&R2 very carefully.
+    #
+    # A C type consists of a basic type declaration, with a list
+    # of modifiers. For example:
+    #
+    # int *c[5];
+    #
+    # The basic declaration here is 'int c', and the pointer and
+    # the array are the modifiers.
+    #
+    # Basic declarations are represented by TypeDecl (from module c_ast) and the
+    # modifiers are FuncDecl, PtrDecl and ArrayDecl.
+    #
+    # The standard states that whenever a new modifier is parsed, it should be
+    # added to the end of the list of modifiers. For example:
+    #
+    # K&R2 A.8.6.2: Array Declarators
+    #
+    # In a declaration T D where D has the form
+    #   D1 [constant-expression-opt]
+    # and the type of the identifier in the declaration T D1 is
+    # "type-modifier T", the type of the
+    # identifier of D is "type-modifier array of T"
+    #
+    # This is what this method does. The declarator it receives
+    # can be a list of declarators ending with TypeDecl. It
+    # tacks the modifier to the end of this list, just before
+    # the TypeDecl.
+    #
+    # Additionally, the modifier may be a list itself. This is
+    # useful for pointers, that can come as a chain from the rule
+    # p_pointer. In this case, the whole modifier list is spliced
+    # into the new location.
+    def _type_modify_decl(self, decl, modifier):
+        """ Tacks a type modifier on a declarator, and returns
+            the modified declarator.
+
+            Note: the declarator and modifier may be modified
+        """
+        #~ print '****'
+        #~ decl.show(offset=3)
+        #~ modifier.show(offset=3)
+        #~ print '****'
+
+        modifier_head = modifier
+        modifier_tail = modifier
+
+        # The modifier may be a nested list. Reach its tail.
+        #
+        while modifier_tail.type:
+            modifier_tail = modifier_tail.type
+
+        # If the decl is a basic type, just tack the modifier onto
+        # it
+        #
+        if isinstance(decl, c_ast.TypeDecl):
+            modifier_tail.type = decl
+            return modifier
+        else:
+            # Otherwise, the decl is a list of modifiers. Reach
+            # its tail and splice the modifier onto the tail,
+            # pointing to the underlying basic type.
+            #
+            decl_tail = decl
+
+            while not isinstance(decl_tail.type, c_ast.TypeDecl):
+                decl_tail = decl_tail.type
+
+            modifier_tail.type = decl_tail.type
+            decl_tail.type = modifier_head
+            return decl
+
+    # Due to the order in which declarators are constructed,
+    # they have to be fixed in order to look like a normal AST.
+    #
+    # When a declaration arrives from syntax construction, it has
+    # these problems:
+    # * The innermost TypeDecl has no type (because the basic
+    #   type is only known at the uppermost declaration level)
+    # * The declaration has no variable name, since that is saved
+    #   in the innermost TypeDecl
+    # * The typename of the declaration is a list of type
+    #   specifiers, and not a node. Here, basic identifier types
+    #   should be separated from more complex types like enums
+    #   and structs.
+    #
+    # This method fixes these problems.
+    #
+    def _fix_decl_name_type(self, decl, typename):
+        """ Fixes a declaration. Modifies decl.
+        """
+        # Reach the underlying basic type
+        #
+        type = decl
+        while not isinstance(type, c_ast.TypeDecl):
+            type = type.type
+
+        decl.name = type.declname
+        type.quals = decl.quals
+
+        # The typename is a list of types. If any type in this
+        # list isn't an IdentifierType, it must be the only
+        # type in the list (it's illegal to declare "int enum ..")
+        # If all the types are basic, they're collected in the
+        # IdentifierType holder.
+        #
+        for tn in typename:
+            if not isinstance(tn, c_ast.IdentifierType):
+                if len(typename) > 1:
+                    self._parse_error(
+                        "Invalid multiple types specified", tn.coord)
+                else:
+                    type.type = tn
+                    return decl
+
+        if not typename:
+            # Functions default to returning int
+            #
+            if not isinstance(decl.type, c_ast.FuncDecl):
+                self._parse_error(
+                        "Missing type in declaration", decl.coord)
+            type.type = c_ast.IdentifierType(
+                    ['int'],
+                    coord=decl.coord)
+        else:
+            # At this point, we know that typename is a list of IdentifierType
+            # nodes. Concatenate all the names into a single list.
+            #
+            type.type = c_ast.IdentifierType(
+                [name for id in typename for name in id.names],
+                coord=typename[0].coord)
+        return decl
+
+    def _add_declaration_specifier(self, declspec, newspec, kind, append=False):
+        """ Declaration specifiers are represented by a dictionary
+            with the entries:
+            * qual: a list of type qualifiers
+            * storage: a list of storage type qualifiers
+            * type: a list of type specifiers
+            * function: a list of function specifiers
+
+            This method is given a declaration specifier, and a
+            new specifier of a given kind.
+            If `append` is True, the new specifier is added to the end of
+            the specifiers list, otherwise it's added at the beginning.
+            Returns the declaration specifier, with the new
+            specifier incorporated.
+        """
+        spec = declspec or dict(qual=[], storage=[], type=[], function=[])
+
+        if append:
+            spec[kind].append(newspec)
+        else:
+            spec[kind].insert(0, newspec)
+
+        return spec
+
+    def _build_declarations(self, spec, decls, typedef_namespace=False):
+        """ Builds a list of declarations all sharing the given specifiers.
+            If typedef_namespace is true, each declared name is added
+            to the "typedef namespace", which also includes objects,
+            functions, and enum constants.
+        """
+        is_typedef = 'typedef' in spec['storage']
+        declarations = []
+
+        # Bit-fields are allowed to be unnamed.
+        #
+        if decls[0].get('bitsize') is not None:
+            pass
+
+        # When redeclaring typedef names as identifiers in inner scopes, a
+        # problem can occur where the identifier gets grouped into
+        # spec['type'], leaving decl as None.  This can only occur for the
+        # first declarator.
+        #
+        elif decls[0]['decl'] is None:
+            if len(spec['type']) < 2 or len(spec['type'][-1].names) != 1 or \
+                    not self._is_type_in_scope(spec['type'][-1].names[0]):
+                coord = '?'
+                for t in spec['type']:
+                    if hasattr(t, 'coord'):
+                        coord = t.coord
+                        break
+                self._parse_error('Invalid declaration', coord)
+
+            # Make this look as if it came from "direct_declarator:ID"
+            decls[0]['decl'] = c_ast.TypeDecl(
+                declname=spec['type'][-1].names[0],
+                type=None,
+                quals=None,
+                coord=spec['type'][-1].coord)
+            # Remove the "new" type's name from the end of spec['type']
+            del spec['type'][-1]
+
+        # A similar problem can occur where the declaration ends up looking
+        # like an abstract declarator.  Give it a name if this is the case.
+        #
+        elif not isinstance(decls[0]['decl'],
+                (c_ast.Struct, c_ast.Union, c_ast.IdentifierType)):
+            decls_0_tail = decls[0]['decl']
+            while not isinstance(decls_0_tail, c_ast.TypeDecl):
+                decls_0_tail = decls_0_tail.type
+            if decls_0_tail.declname is None:
+                decls_0_tail.declname = spec['type'][-1].names[0]
+                del spec['type'][-1]
+
+        for decl in decls:
+            assert decl['decl'] is not None
+            if is_typedef:
+                declaration = c_ast.Typedef(
+                    name=None,
+                    quals=spec['qual'],
+                    storage=spec['storage'],
+                    type=decl['decl'],
+                    coord=decl['decl'].coord)
+            else:
+                declaration = c_ast.Decl(
+                    name=None,
+                    quals=spec['qual'],
+                    storage=spec['storage'],
+                    funcspec=spec['function'],
+                    type=decl['decl'],
+                    init=decl.get('init'),
+                    bitsize=decl.get('bitsize'),
+                    coord=decl['decl'].coord)
+
+            if isinstance(declaration.type,
+                    (c_ast.Struct, c_ast.Union, c_ast.IdentifierType)):
+                fixed_decl = declaration
+            else:
+                fixed_decl = self._fix_decl_name_type(declaration, spec['type'])
+
+            # Add the type name defined by typedef to a
+            # symbol table (for usage in the lexer)
+            #
+            if typedef_namespace:
+                if is_typedef:
+                    self._add_typedef_name(fixed_decl.name, fixed_decl.coord)
+                else:
+                    self._add_identifier(fixed_decl.name, fixed_decl.coord)
+
+            declarations.append(fixed_decl)
+
+        return declarations
+
+    def _build_function_definition(self, spec, decl, param_decls, body):
+        """ Builds a function definition.
+        """
+        assert 'typedef' not in spec['storage']
+
+        declaration = self._build_declarations(
+            spec=spec,
+            decls=[dict(decl=decl, init=None)],
+            typedef_namespace=True)[0]
+
+        return c_ast.FuncDef(
+            decl=declaration,
+            param_decls=param_decls,
+            body=body,
+            coord=decl.coord)
+
+    def _select_struct_union_class(self, token):
+        """ Given a token (either STRUCT or UNION), selects the
+            appropriate AST class.
+        """
+        if token == 'struct':
+            return c_ast.Struct
+        else:
+            return c_ast.Union
+
+    ##
+    ## Precedence and associativity of operators
+    ##
+    precedence = (
+        ('left', 'LOR'),
+        ('left', 'LAND'),
+        ('left', 'OR'),
+        ('left', 'XOR'),
+        ('left', 'AND'),
+        ('left', 'EQ', 'NE'),
+        ('left', 'GT', 'GE', 'LT', 'LE'),
+        ('left', 'RSHIFT', 'LSHIFT'),
+        ('left', 'PLUS', 'MINUS'),
+        ('left', 'TIMES', 'DIVIDE', 'MOD')
+    )
+
+    ##
+    ## Grammar productions
+    ## Implementation of the BNF defined in K&R2 A.13
+    ##
+
+    # Wrapper around a translation unit, to allow for empty input.
+    # Not strictly part of the C99 Grammar, but useful in practice.
+    #
+    def p_translation_unit_or_empty(self, p):
+        """ translation_unit_or_empty   : translation_unit
+                                        | empty
+        """
+        if p[1] is None:
+            p[0] = c_ast.FileAST([])
+        else:
+            p[0] = c_ast.FileAST(p[1])
+
+    def p_translation_unit_1(self, p):
+        """ translation_unit    : external_declaration
+        """
+        # Note: external_declaration is already a list
+        #
+        p[0] = p[1]
+
+    def p_translation_unit_2(self, p):
+        """ translation_unit    : translation_unit external_declaration
+        """
+        if p[2] is not None:
+            p[1].extend(p[2])
+        p[0] = p[1]
+
+    # Declarations always come as lists (because they can be
+    # several in one line), so we wrap the function definition
+    # into a list as well, to make the return value of
+    # external_declaration homogenous.
+    #
+    def p_external_declaration_1(self, p):
+        """ external_declaration    : function_definition
+        """
+        p[0] = [p[1]]
+
+    def p_external_declaration_2(self, p):
+        """ external_declaration    : declaration
+        """
+        p[0] = p[1]
+
+    def p_external_declaration_3(self, p):
+        """ external_declaration    : pp_directive
+                                    | pppragma_directive
+        """
+        p[0] = [p[1]]
+
+    def p_external_declaration_4(self, p):
+        """ external_declaration    : SEMI
+        """
+        p[0] = None
+
+    def p_pp_directive(self, p):
+        """ pp_directive  : PPHASH
+        """
+        self._parse_error('Directives not supported yet',
+                          self._token_coord(p, 1))
+
+    def p_pppragma_directive(self, p):
+        """ pppragma_directive      : PPPRAGMA
+                                    | PPPRAGMA PPPRAGMASTR
+        """
+        if len(p) == 3:
+            p[0] = c_ast.Pragma(p[2], self._token_coord(p, 2))
+        else:
+            p[0] = c_ast.Pragma("", self._token_coord(p, 1))
+
+    # In function definitions, the declarator can be followed by
+    # a declaration list, for old "K&R style" function definitios.
+    #
+    def p_function_definition_1(self, p):
+        """ function_definition : id_declarator declaration_list_opt compound_statement
+        """
+        # no declaration specifiers - 'int' becomes the default type
+        spec = dict(
+            qual=[],
+            storage=[],
+            type=[c_ast.IdentifierType(['int'],
+                                       coord=self._token_coord(p, 1))],
+            function=[])
+
+        p[0] = self._build_function_definition(
+            spec=spec,
+            decl=p[1],
+            param_decls=p[2],
+            body=p[3])
+
+    def p_function_definition_2(self, p):
+        """ function_definition : declaration_specifiers id_declarator declaration_list_opt compound_statement
+        """
+        spec = p[1]
+
+        p[0] = self._build_function_definition(
+            spec=spec,
+            decl=p[2],
+            param_decls=p[3],
+            body=p[4])
+
+    def p_statement(self, p):
+        """ statement   : labeled_statement
+                        | expression_statement
+                        | compound_statement
+                        | selection_statement
+                        | iteration_statement
+                        | jump_statement
+                        | pppragma_directive
+        """
+        p[0] = p[1]
+
+    # In C, declarations can come several in a line:
+    #   int x, *px, romulo = 5;
+    #
+    # However, for the AST, we will split them to separate Decl
+    # nodes.
+    #
+    # This rule splits its declarations and always returns a list
+    # of Decl nodes, even if it's one element long.
+    #
+    def p_decl_body(self, p):
+        """ decl_body : declaration_specifiers init_declarator_list_opt
+                      | declaration_specifiers_no_type id_init_declarator_list_opt
+        """
+        spec = p[1]
+
+        # p[2] (init_declarator_list_opt) is either a list or None
+        #
+        if p[2] is None:
+            # By the standard, you must have at least one declarator unless
+            # declaring a structure tag, a union tag, or the members of an
+            # enumeration.
+            #
+            ty = spec['type']
+            s_u_or_e = (c_ast.Struct, c_ast.Union, c_ast.Enum)
+            if len(ty) == 1 and isinstance(ty[0], s_u_or_e):
+                decls = [c_ast.Decl(
+                    name=None,
+                    quals=spec['qual'],
+                    storage=spec['storage'],
+                    funcspec=spec['function'],
+                    type=ty[0],
+                    init=None,
+                    bitsize=None,
+                    coord=ty[0].coord)]
+
+            # However, this case can also occur on redeclared identifiers in
+            # an inner scope.  The trouble is that the redeclared type's name
+            # gets grouped into declaration_specifiers; _build_declarations
+            # compensates for this.
+            #
+            else:
+                decls = self._build_declarations(
+                    spec=spec,
+                    decls=[dict(decl=None, init=None)],
+                    typedef_namespace=True)
+
+        else:
+            decls = self._build_declarations(
+                spec=spec,
+                decls=p[2],
+                typedef_namespace=True)
+
+        p[0] = decls
+
+    # The declaration has been split to a decl_body sub-rule and
+    # SEMI, because having them in a single rule created a problem
+    # for defining typedefs.
+    #
+    # If a typedef line was directly followed by a line using the
+    # type defined with the typedef, the type would not be
+    # recognized. This is because to reduce the declaration rule,
+    # the parser's lookahead asked for the token after SEMI, which
+    # was the type from the next line, and the lexer had no chance
+    # to see the updated type symbol table.
+    #
+    # Splitting solves this problem, because after seeing SEMI,
+    # the parser reduces decl_body, which actually adds the new
+    # type into the table to be seen by the lexer before the next
+    # line is reached.
+    def p_declaration(self, p):
+        """ declaration : decl_body SEMI
+        """
+        p[0] = p[1]
+
+    # Since each declaration is a list of declarations, this
+    # rule will combine all the declarations and return a single
+    # list
+    #
+    def p_declaration_list(self, p):
+        """ declaration_list    : declaration
+                                | declaration_list declaration
+        """
+        p[0] = p[1] if len(p) == 2 else p[1] + p[2]
+
+    # To know when declaration-specifiers end and declarators begin,
+    # we require declaration-specifiers to have at least one
+    # type-specifier, and disallow typedef-names after we've seen any
+    # type-specifier. These are both required by the spec.
+    #
+    def p_declaration_specifiers_no_type_1(self, p):
+        """ declaration_specifiers_no_type  : type_qualifier declaration_specifiers_no_type_opt
+        """
+        p[0] = self._add_declaration_specifier(p[2], p[1], 'qual')
+
+    def p_declaration_specifiers_no_type_2(self, p):
+        """ declaration_specifiers_no_type  : storage_class_specifier declaration_specifiers_no_type_opt
+        """
+        p[0] = self._add_declaration_specifier(p[2], p[1], 'storage')
+
+    def p_declaration_specifiers_no_type_3(self, p):
+        """ declaration_specifiers_no_type  : function_specifier declaration_specifiers_no_type_opt
+        """
+        p[0] = self._add_declaration_specifier(p[2], p[1], 'function')
+
+
+    def p_declaration_specifiers_1(self, p):
+        """ declaration_specifiers  : declaration_specifiers type_qualifier
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'qual', append=True)
+
+    def p_declaration_specifiers_2(self, p):
+        """ declaration_specifiers  : declaration_specifiers storage_class_specifier
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'storage', append=True)
+
+    def p_declaration_specifiers_3(self, p):
+        """ declaration_specifiers  : declaration_specifiers function_specifier
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'function', append=True)
+
+    def p_declaration_specifiers_4(self, p):
+        """ declaration_specifiers  : declaration_specifiers type_specifier_no_typeid
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'type', append=True)
+
+    def p_declaration_specifiers_5(self, p):
+        """ declaration_specifiers  : type_specifier
+        """
+        p[0] = self._add_declaration_specifier(None, p[1], 'type')
+
+    def p_declaration_specifiers_6(self, p):
+        """ declaration_specifiers  : declaration_specifiers_no_type type_specifier
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'type', append=True)
+
+
+    def p_storage_class_specifier(self, p):
+        """ storage_class_specifier : AUTO
+                                    | REGISTER
+                                    | STATIC
+                                    | EXTERN
+                                    | TYPEDEF
+        """
+        p[0] = p[1]
+
+    def p_function_specifier(self, p):
+        """ function_specifier  : INLINE
+        """
+        p[0] = p[1]
+
+    def p_type_specifier_no_typeid(self, p):
+        """ type_specifier_no_typeid  : VOID
+                                      | _BOOL
+                                      | CHAR
+                                      | SHORT
+                                      | INT
+                                      | LONG
+                                      | FLOAT
+                                      | DOUBLE
+                                      | _COMPLEX
+                                      | SIGNED
+                                      | UNSIGNED
+                                      | __INT128
+        """
+        p[0] = c_ast.IdentifierType([p[1]], coord=self._token_coord(p, 1))
+
+    def p_type_specifier(self, p):
+        """ type_specifier  : typedef_name
+                            | enum_specifier
+                            | struct_or_union_specifier
+                            | type_specifier_no_typeid
+        """
+        p[0] = p[1]
+
+    def p_type_qualifier(self, p):
+        """ type_qualifier  : CONST
+                            | RESTRICT
+                            | VOLATILE
+        """
+        p[0] = p[1]
+
+    def p_init_declarator_list(self, p):
+        """ init_declarator_list    : init_declarator
+                                    | init_declarator_list COMMA init_declarator
+        """
+        p[0] = p[1] + [p[3]] if len(p) == 4 else [p[1]]
+
+    # Returns a {decl=<declarator> : init=<initializer>} dictionary
+    # If there's no initializer, uses None
+    #
+    def p_init_declarator(self, p):
+        """ init_declarator : declarator
+                            | declarator EQUALS initializer
+        """
+        p[0] = dict(decl=p[1], init=(p[3] if len(p) > 2 else None))
+
+    def p_id_init_declarator_list(self, p):
+        """ id_init_declarator_list    : id_init_declarator
+                                       | id_init_declarator_list COMMA init_declarator
+        """
+        p[0] = p[1] + [p[3]] if len(p) == 4 else [p[1]]
+
+    def p_id_init_declarator(self, p):
+        """ id_init_declarator : id_declarator
+                               | id_declarator EQUALS initializer
+        """
+        p[0] = dict(decl=p[1], init=(p[3] if len(p) > 2 else None))
+
+    # Require at least one type specifier in a specifier-qualifier-list
+    #
+    def p_specifier_qualifier_list_1(self, p):
+        """ specifier_qualifier_list    : specifier_qualifier_list type_specifier_no_typeid
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'type', append=True)
+
+    def p_specifier_qualifier_list_2(self, p):
+        """ specifier_qualifier_list    : specifier_qualifier_list type_qualifier
+        """
+        p[0] = self._add_declaration_specifier(p[1], p[2], 'qual', append=True)
+
+    def p_specifier_qualifier_list_3(self, p):
+        """ specifier_qualifier_list  : type_specifier
+        """
+        p[0] = self._add_declaration_specifier(None, p[1], 'type')
+
+    def p_specifier_qualifier_list_4(self, p):
+        """ specifier_qualifier_list  : type_qualifier_list type_specifier
+        """
+        spec = dict(qual=p[1], storage=[], type=[], function=[])
+        p[0] = self._add_declaration_specifier(spec, p[2], 'type', append=True)
+
+    # TYPEID is allowed here (and in other struct/enum related tag names), because
+    # struct/enum tags reside in their own namespace and can be named the same as types
+    #
+    def p_struct_or_union_specifier_1(self, p):
+        """ struct_or_union_specifier   : struct_or_union ID
+                                        | struct_or_union TYPEID
+        """
+        klass = self._select_struct_union_class(p[1])
+        p[0] = klass(
+            name=p[2],
+            decls=None,
+            coord=self._token_coord(p, 2))
+
+    def p_struct_or_union_specifier_2(self, p):
+        """ struct_or_union_specifier : struct_or_union brace_open struct_declaration_list brace_close
+        """
+        klass = self._select_struct_union_class(p[1])
+        p[0] = klass(
+            name=None,
+            decls=p[3],
+            coord=self._token_coord(p, 2))
+
+    def p_struct_or_union_specifier_3(self, p):
+        """ struct_or_union_specifier   : struct_or_union ID brace_open struct_declaration_list brace_close
+                                        | struct_or_union TYPEID brace_open struct_declaration_list brace_close
+        """
+        klass = self._select_struct_union_class(p[1])
+        p[0] = klass(
+            name=p[2],
+            decls=p[4],
+            coord=self._token_coord(p, 2))
+
+    def p_struct_or_union(self, p):
+        """ struct_or_union : STRUCT
+                            | UNION
+        """
+        p[0] = p[1]
+
+    # Combine all declarations into a single list
+    #
+    def p_struct_declaration_list(self, p):
+        """ struct_declaration_list     : struct_declaration
+                                        | struct_declaration_list struct_declaration
+        """
+        if len(p) == 2:
+            p[0] = p[1] or []
+        else:
+            p[0] = p[1] + (p[2] or [])
+
+    def p_struct_declaration_1(self, p):
+        """ struct_declaration : specifier_qualifier_list struct_declarator_list_opt SEMI
+        """
+        spec = p[1]
+        assert 'typedef' not in spec['storage']
+
+        if p[2] is not None:
+            decls = self._build_declarations(
+                spec=spec,
+                decls=p[2])
+
+        elif len(spec['type']) == 1:
+            # Anonymous struct/union, gcc extension, C1x feature.
+            # Although the standard only allows structs/unions here, I see no
+            # reason to disallow other types since some compilers have typedefs
+            # here, and pycparser isn't about rejecting all invalid code.
+            #
+            node = spec['type'][0]
+            if isinstance(node, c_ast.Node):
+                decl_type = node
+            else:
+                decl_type = c_ast.IdentifierType(node)
+
+            decls = self._build_declarations(
+                spec=spec,
+                decls=[dict(decl=decl_type)])
+
+        else:
+            # Structure/union members can have the same names as typedefs.
+            # The trouble is that the member's name gets grouped into
+            # specifier_qualifier_list; _build_declarations compensates.
+            #
+            decls = self._build_declarations(
+                spec=spec,
+                decls=[dict(decl=None, init=None)])
+
+        p[0] = decls
+
+    def p_struct_declaration_2(self, p):
+        """ struct_declaration : SEMI
+        """
+        p[0] = None
+
+    def p_struct_declarator_list(self, p):
+        """ struct_declarator_list  : struct_declarator
+                                    | struct_declarator_list COMMA struct_declarator
+        """
+        p[0] = p[1] + [p[3]] if len(p) == 4 else [p[1]]
+
+    # struct_declarator passes up a dict with the keys: decl (for
+    # the underlying declarator) and bitsize (for the bitsize)
+    #
+    def p_struct_declarator_1(self, p):
+        """ struct_declarator : declarator
+        """
+        p[0] = {'decl': p[1], 'bitsize': None}
+
+    def p_struct_declarator_2(self, p):
+        """ struct_declarator   : declarator COLON constant_expression
+                                | COLON constant_expression
+        """
+        if len(p) > 3:
+            p[0] = {'decl': p[1], 'bitsize': p[3]}
+        else:
+            p[0] = {'decl': c_ast.TypeDecl(None, None, None), 'bitsize': p[2]}
+
+    def p_enum_specifier_1(self, p):
+        """ enum_specifier  : ENUM ID
+                            | ENUM TYPEID
+        """
+        p[0] = c_ast.Enum(p[2], None, self._token_coord(p, 1))
+
+    def p_enum_specifier_2(self, p):
+        """ enum_specifier  : ENUM brace_open enumerator_list brace_close
+        """
+        p[0] = c_ast.Enum(None, p[3], self._token_coord(p, 1))
+
+    def p_enum_specifier_3(self, p):
+        """ enum_specifier  : ENUM ID brace_open enumerator_list brace_close
+                            | ENUM TYPEID brace_open enumerator_list brace_close
+        """
+        p[0] = c_ast.Enum(p[2], p[4], self._token_coord(p, 1))
+
+    def p_enumerator_list(self, p):
+        """ enumerator_list : enumerator
+                            | enumerator_list COMMA
+                            | enumerator_list COMMA enumerator
+        """
+        if len(p) == 2:
+            p[0] = c_ast.EnumeratorList([p[1]], p[1].coord)
+        elif len(p) == 3:
+            p[0] = p[1]
+        else:
+            p[1].enumerators.append(p[3])
+            p[0] = p[1]
+
+    def p_enumerator(self, p):
+        """ enumerator  : ID
+                        | ID EQUALS constant_expression
+        """
+        if len(p) == 2:
+            enumerator = c_ast.Enumerator(
+                        p[1], None,
+                        self._token_coord(p, 1))
+        else:
+            enumerator = c_ast.Enumerator(
+                        p[1], p[3],
+                        self._token_coord(p, 1))
+        self._add_identifier(enumerator.name, enumerator.coord)
+
+        p[0] = enumerator
+
+    def p_declarator(self, p):
+        """ declarator  : id_declarator
+                        | typeid_declarator
+        """
+        p[0] = p[1]
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_xxx_declarator_1(self, p):
+        """ xxx_declarator  : direct_xxx_declarator
+        """
+        p[0] = p[1]
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_xxx_declarator_2(self, p):
+        """ xxx_declarator  : pointer direct_xxx_declarator
+        """
+        p[0] = self._type_modify_decl(p[2], p[1])
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_direct_xxx_declarator_1(self, p):
+        """ direct_xxx_declarator   : yyy
+        """
+        p[0] = c_ast.TypeDecl(
+            declname=p[1],
+            type=None,
+            quals=None,
+            coord=self._token_coord(p, 1))
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'))
+    def p_direct_xxx_declarator_2(self, p):
+        """ direct_xxx_declarator   : LPAREN xxx_declarator RPAREN
+        """
+        p[0] = p[2]
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_direct_xxx_declarator_3(self, p):
+        """ direct_xxx_declarator   : direct_xxx_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET
+        """
+        quals = (p[3] if len(p) > 5 else []) or []
+        # Accept dimension qualifiers
+        # Per C99 6.7.5.3 p7
+        arr = c_ast.ArrayDecl(
+            type=None,
+            dim=p[4] if len(p) > 5 else p[3],
+            dim_quals=quals,
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=arr)
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_direct_xxx_declarator_4(self, p):
+        """ direct_xxx_declarator   : direct_xxx_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET
+                                    | direct_xxx_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET
+        """
+        # Using slice notation for PLY objects doesn't work in Python 3 for the
+        # version of PLY embedded with pycparser; see PLY Google Code issue 30.
+        # Work around that here by listing the two elements separately.
+        listed_quals = [item if isinstance(item, list) else [item]
+            for item in [p[3],p[4]]]
+        dim_quals = [qual for sublist in listed_quals for qual in sublist
+            if qual is not None]
+        arr = c_ast.ArrayDecl(
+            type=None,
+            dim=p[5],
+            dim_quals=dim_quals,
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=arr)
+
+    # Special for VLAs
+    #
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_direct_xxx_declarator_5(self, p):
+        """ direct_xxx_declarator   : direct_xxx_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET
+        """
+        arr = c_ast.ArrayDecl(
+            type=None,
+            dim=c_ast.ID(p[4], self._token_coord(p, 4)),
+            dim_quals=p[3] if p[3] != None else [],
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=arr)
+
+    @parameterized(('id', 'ID'), ('typeid', 'TYPEID'), ('typeid_noparen', 'TYPEID'))
+    def p_direct_xxx_declarator_6(self, p):
+        """ direct_xxx_declarator   : direct_xxx_declarator LPAREN parameter_type_list RPAREN
+                                    | direct_xxx_declarator LPAREN identifier_list_opt RPAREN
+        """
+        func = c_ast.FuncDecl(
+            args=p[3],
+            type=None,
+            coord=p[1].coord)
+
+        # To see why _get_yacc_lookahead_token is needed, consider:
+        #   typedef char TT;
+        #   void foo(int TT) { TT = 10; }
+        # Outside the function, TT is a typedef, but inside (starting and
+        # ending with the braces) it's a parameter.  The trouble begins with
+        # yacc's lookahead token.  We don't know if we're declaring or
+        # defining a function until we see LBRACE, but if we wait for yacc to
+        # trigger a rule on that token, then TT will have already been read
+        # and incorrectly interpreted as TYPEID.  We need to add the
+        # parameters to the scope the moment the lexer sees LBRACE.
+        #
+        if self._get_yacc_lookahead_token().type == "LBRACE":
+            if func.args is not None:
+                for param in func.args.params:
+                    if isinstance(param, c_ast.EllipsisParam): break
+                    self._add_identifier(param.name, param.coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=func)
+
+    def p_pointer(self, p):
+        """ pointer : TIMES type_qualifier_list_opt
+                    | TIMES type_qualifier_list_opt pointer
+        """
+        coord = self._token_coord(p, 1)
+        # Pointer decls nest from inside out. This is important when different
+        # levels have different qualifiers. For example:
+        #
+        #  char * const * p;
+        #
+        # Means "pointer to const pointer to char"
+        #
+        # While:
+        #
+        #  char ** const p;
+        #
+        # Means "const pointer to pointer to char"
+        #
+        # So when we construct PtrDecl nestings, the leftmost pointer goes in
+        # as the most nested type.
+        nested_type = c_ast.PtrDecl(quals=p[2] or [], type=None, coord=coord)
+        if len(p) > 3:
+            tail_type = p[3]
+            while tail_type.type is not None:
+                tail_type = tail_type.type
+            tail_type.type = nested_type
+            p[0] = p[3]
+        else:
+            p[0] = nested_type
+
+    def p_type_qualifier_list(self, p):
+        """ type_qualifier_list : type_qualifier
+                                | type_qualifier_list type_qualifier
+        """
+        p[0] = [p[1]] if len(p) == 2 else p[1] + [p[2]]
+
+    def p_parameter_type_list(self, p):
+        """ parameter_type_list : parameter_list
+                                | parameter_list COMMA ELLIPSIS
+        """
+        if len(p) > 2:
+            p[1].params.append(c_ast.EllipsisParam(self._token_coord(p, 3)))
+
+        p[0] = p[1]
+
+    def p_parameter_list(self, p):
+        """ parameter_list  : parameter_declaration
+                            | parameter_list COMMA parameter_declaration
+        """
+        if len(p) == 2: # single parameter
+            p[0] = c_ast.ParamList([p[1]], p[1].coord)
+        else:
+            p[1].params.append(p[3])
+            p[0] = p[1]
+
+    # From ISO/IEC 9899:TC2, 6.7.5.3.11:
+    # "If, in a parameter declaration, an identifier can be treated either
+    #  as a typedef name or as a parameter name, it shall be taken as a
+    #  typedef name."
+    #
+    # Inside a parameter declaration, once we've reduced declaration specifiers,
+    # if we shift in an LPAREN and see a TYPEID, it could be either an abstract
+    # declarator or a declarator nested inside parens. This rule tells us to
+    # always treat it as an abstract declarator. Therefore, we only accept
+    # `id_declarator`s and `typeid_noparen_declarator`s.
+    def p_parameter_declaration_1(self, p):
+        """ parameter_declaration   : declaration_specifiers id_declarator
+                                    | declaration_specifiers typeid_noparen_declarator
+        """
+        spec = p[1]
+        if not spec['type']:
+            spec['type'] = [c_ast.IdentifierType(['int'],
+                coord=self._token_coord(p, 1))]
+        p[0] = self._build_declarations(
+            spec=spec,
+            decls=[dict(decl=p[2])])[0]
+
+    def p_parameter_declaration_2(self, p):
+        """ parameter_declaration   : declaration_specifiers abstract_declarator_opt
+        """
+        spec = p[1]
+        if not spec['type']:
+            spec['type'] = [c_ast.IdentifierType(['int'],
+                coord=self._token_coord(p, 1))]
+
+        # Parameters can have the same names as typedefs.  The trouble is that
+        # the parameter's name gets grouped into declaration_specifiers, making
+        # it look like an old-style declaration; compensate.
+        #
+        if len(spec['type']) > 1 and len(spec['type'][-1].names) == 1 and \
+                self._is_type_in_scope(spec['type'][-1].names[0]):
+            decl = self._build_declarations(
+                    spec=spec,
+                    decls=[dict(decl=p[2], init=None)])[0]
+
+        # This truly is an old-style parameter declaration
+        #
+        else:
+            decl = c_ast.Typename(
+                name='',
+                quals=spec['qual'],
+                type=p[2] or c_ast.TypeDecl(None, None, None),
+                coord=self._token_coord(p, 2))
+            typename = spec['type']
+            decl = self._fix_decl_name_type(decl, typename)
+
+        p[0] = decl
+
+    def p_identifier_list(self, p):
+        """ identifier_list : identifier
+                            | identifier_list COMMA identifier
+        """
+        if len(p) == 2: # single parameter
+            p[0] = c_ast.ParamList([p[1]], p[1].coord)
+        else:
+            p[1].params.append(p[3])
+            p[0] = p[1]
+
+    def p_initializer_1(self, p):
+        """ initializer : assignment_expression
+        """
+        p[0] = p[1]
+
+    def p_initializer_2(self, p):
+        """ initializer : brace_open initializer_list_opt brace_close
+                        | brace_open initializer_list COMMA brace_close
+        """
+        if p[2] is None:
+            p[0] = c_ast.InitList([], self._token_coord(p, 1))
+        else:
+            p[0] = p[2]
+
+    def p_initializer_list(self, p):
+        """ initializer_list    : designation_opt initializer
+                                | initializer_list COMMA designation_opt initializer
+        """
+        if len(p) == 3: # single initializer
+            init = p[2] if p[1] is None else c_ast.NamedInitializer(p[1], p[2])
+            p[0] = c_ast.InitList([init], p[2].coord)
+        else:
+            init = p[4] if p[3] is None else c_ast.NamedInitializer(p[3], p[4])
+            p[1].exprs.append(init)
+            p[0] = p[1]
+
+    def p_designation(self, p):
+        """ designation : designator_list EQUALS
+        """
+        p[0] = p[1]
+
+    # Designators are represented as a list of nodes, in the order in which
+    # they're written in the code.
+    #
+    def p_designator_list(self, p):
+        """ designator_list : designator
+                            | designator_list designator
+        """
+        p[0] = [p[1]] if len(p) == 2 else p[1] + [p[2]]
+
+    def p_designator(self, p):
+        """ designator  : LBRACKET constant_expression RBRACKET
+                        | PERIOD identifier
+        """
+        p[0] = p[2]
+
+    def p_type_name(self, p):
+        """ type_name   : specifier_qualifier_list abstract_declarator_opt
+        """
+        typename = c_ast.Typename(
+            name='',
+            quals=p[1]['qual'],
+            type=p[2] or c_ast.TypeDecl(None, None, None),
+            coord=self._token_coord(p, 2))
+
+        p[0] = self._fix_decl_name_type(typename, p[1]['type'])
+
+    def p_abstract_declarator_1(self, p):
+        """ abstract_declarator     : pointer
+        """
+        dummytype = c_ast.TypeDecl(None, None, None)
+        p[0] = self._type_modify_decl(
+            decl=dummytype,
+            modifier=p[1])
+
+    def p_abstract_declarator_2(self, p):
+        """ abstract_declarator     : pointer direct_abstract_declarator
+        """
+        p[0] = self._type_modify_decl(p[2], p[1])
+
+    def p_abstract_declarator_3(self, p):
+        """ abstract_declarator     : direct_abstract_declarator
+        """
+        p[0] = p[1]
+
+    # Creating and using direct_abstract_declarator_opt here
+    # instead of listing both direct_abstract_declarator and the
+    # lack of it in the beginning of _1 and _2 caused two
+    # shift/reduce errors.
+    #
+    def p_direct_abstract_declarator_1(self, p):
+        """ direct_abstract_declarator  : LPAREN abstract_declarator RPAREN """
+        p[0] = p[2]
+
+    def p_direct_abstract_declarator_2(self, p):
+        """ direct_abstract_declarator  : direct_abstract_declarator LBRACKET assignment_expression_opt RBRACKET
+        """
+        arr = c_ast.ArrayDecl(
+            type=None,
+            dim=p[3],
+            dim_quals=[],
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=arr)
+
+    def p_direct_abstract_declarator_3(self, p):
+        """ direct_abstract_declarator  : LBRACKET assignment_expression_opt RBRACKET
+        """
+        p[0] = c_ast.ArrayDecl(
+            type=c_ast.TypeDecl(None, None, None),
+            dim=p[2],
+            dim_quals=[],
+            coord=self._token_coord(p, 1))
+
+    def p_direct_abstract_declarator_4(self, p):
+        """ direct_abstract_declarator  : direct_abstract_declarator LBRACKET TIMES RBRACKET
+        """
+        arr = c_ast.ArrayDecl(
+            type=None,
+            dim=c_ast.ID(p[3], self._token_coord(p, 3)),
+            dim_quals=[],
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=arr)
+
+    def p_direct_abstract_declarator_5(self, p):
+        """ direct_abstract_declarator  : LBRACKET TIMES RBRACKET
+        """
+        p[0] = c_ast.ArrayDecl(
+            type=c_ast.TypeDecl(None, None, None),
+            dim=c_ast.ID(p[3], self._token_coord(p, 3)),
+            dim_quals=[],
+            coord=self._token_coord(p, 1))
+
+    def p_direct_abstract_declarator_6(self, p):
+        """ direct_abstract_declarator  : direct_abstract_declarator LPAREN parameter_type_list_opt RPAREN
+        """
+        func = c_ast.FuncDecl(
+            args=p[3],
+            type=None,
+            coord=p[1].coord)
+
+        p[0] = self._type_modify_decl(decl=p[1], modifier=func)
+
+    def p_direct_abstract_declarator_7(self, p):
+        """ direct_abstract_declarator  : LPAREN parameter_type_list_opt RPAREN
+        """
+        p[0] = c_ast.FuncDecl(
+            args=p[2],
+            type=c_ast.TypeDecl(None, None, None),
+            coord=self._token_coord(p, 1))
+
+    # declaration is a list, statement isn't. To make it consistent, block_item
+    # will always be a list
+    #
+    def p_block_item(self, p):
+        """ block_item  : declaration
+                        | statement
+        """
+        p[0] = p[1] if isinstance(p[1], list) else [p[1]]
+
+    # Since we made block_item a list, this just combines lists
+    #
+    def p_block_item_list(self, p):
+        """ block_item_list : block_item
+                            | block_item_list block_item
+        """
+        # Empty block items (plain ';') produce [None], so ignore them
+        p[0] = p[1] if (len(p) == 2 or p[2] == [None]) else p[1] + p[2]
+
+    def p_compound_statement_1(self, p):
+        """ compound_statement : brace_open block_item_list_opt brace_close """
+        p[0] = c_ast.Compound(
+            block_items=p[2],
+            coord=self._token_coord(p, 1))
+
+    def p_labeled_statement_1(self, p):
+        """ labeled_statement : ID COLON statement """
+        p[0] = c_ast.Label(p[1], p[3], self._token_coord(p, 1))
+
+    def p_labeled_statement_2(self, p):
+        """ labeled_statement : CASE constant_expression COLON statement """
+        p[0] = c_ast.Case(p[2], [p[4]], self._token_coord(p, 1))
+
+    def p_labeled_statement_3(self, p):
+        """ labeled_statement : DEFAULT COLON statement """
+        p[0] = c_ast.Default([p[3]], self._token_coord(p, 1))
+
+    def p_selection_statement_1(self, p):
+        """ selection_statement : IF LPAREN expression RPAREN statement """
+        p[0] = c_ast.If(p[3], p[5], None, self._token_coord(p, 1))
+
+    def p_selection_statement_2(self, p):
+        """ selection_statement : IF LPAREN expression RPAREN statement ELSE statement """
+        p[0] = c_ast.If(p[3], p[5], p[7], self._token_coord(p, 1))
+
+    def p_selection_statement_3(self, p):
+        """ selection_statement : SWITCH LPAREN expression RPAREN statement """
+        p[0] = fix_switch_cases(
+                c_ast.Switch(p[3], p[5], self._token_coord(p, 1)))
+
+    def p_iteration_statement_1(self, p):
+        """ iteration_statement : WHILE LPAREN expression RPAREN statement """
+        p[0] = c_ast.While(p[3], p[5], self._token_coord(p, 1))
+
+    def p_iteration_statement_2(self, p):
+        """ iteration_statement : DO statement WHILE LPAREN expression RPAREN SEMI """
+        p[0] = c_ast.DoWhile(p[5], p[2], self._token_coord(p, 1))
+
+    def p_iteration_statement_3(self, p):
+        """ iteration_statement : FOR LPAREN expression_opt SEMI expression_opt SEMI expression_opt RPAREN statement """
+        p[0] = c_ast.For(p[3], p[5], p[7], p[9], self._token_coord(p, 1))
+
+    def p_iteration_statement_4(self, p):
+        """ iteration_statement : FOR LPAREN declaration expression_opt SEMI expression_opt RPAREN statement """
+        p[0] = c_ast.For(c_ast.DeclList(p[3], self._token_coord(p, 1)),
+                         p[4], p[6], p[8], self._token_coord(p, 1))
+
+    def p_jump_statement_1(self, p):
+        """ jump_statement  : GOTO ID SEMI """
+        p[0] = c_ast.Goto(p[2], self._token_coord(p, 1))
+
+    def p_jump_statement_2(self, p):
+        """ jump_statement  : BREAK SEMI """
+        p[0] = c_ast.Break(self._token_coord(p, 1))
+
+    def p_jump_statement_3(self, p):
+        """ jump_statement  : CONTINUE SEMI """
+        p[0] = c_ast.Continue(self._token_coord(p, 1))
+
+    def p_jump_statement_4(self, p):
+        """ jump_statement  : RETURN expression SEMI
+                            | RETURN SEMI
+        """
+        p[0] = c_ast.Return(p[2] if len(p) == 4 else None, self._token_coord(p, 1))
+
+    def p_expression_statement(self, p):
+        """ expression_statement : expression_opt SEMI """
+        if p[1] is None:
+            p[0] = c_ast.EmptyStatement(self._token_coord(p, 2))
+        else:
+            p[0] = p[1]
+
+    def p_expression(self, p):
+        """ expression  : assignment_expression
+                        | expression COMMA assignment_expression
+        """
+        if len(p) == 2:
+            p[0] = p[1]
+        else:
+            if not isinstance(p[1], c_ast.ExprList):
+                p[1] = c_ast.ExprList([p[1]], p[1].coord)
+
+            p[1].exprs.append(p[3])
+            p[0] = p[1]
+
+    def p_typedef_name(self, p):
+        """ typedef_name : TYPEID """
+        p[0] = c_ast.IdentifierType([p[1]], coord=self._token_coord(p, 1))
+
+    def p_assignment_expression(self, p):
+        """ assignment_expression   : conditional_expression
+                                    | unary_expression assignment_operator assignment_expression
+        """
+        if len(p) == 2:
+            p[0] = p[1]
+        else:
+            p[0] = c_ast.Assignment(p[2], p[1], p[3], p[1].coord)
+
+    # K&R2 defines these as many separate rules, to encode
+    # precedence and associativity. Why work hard ? I'll just use
+    # the built in precedence/associativity specification feature
+    # of PLY. (see precedence declaration above)
+    #
+    def p_assignment_operator(self, p):
+        """ assignment_operator : EQUALS
+                                | XOREQUAL
+                                | TIMESEQUAL
+                                | DIVEQUAL
+                                | MODEQUAL
+                                | PLUSEQUAL
+                                | MINUSEQUAL
+                                | LSHIFTEQUAL
+                                | RSHIFTEQUAL
+                                | ANDEQUAL
+                                | OREQUAL
+        """
+        p[0] = p[1]
+
+    def p_constant_expression(self, p):
+        """ constant_expression : conditional_expression """
+        p[0] = p[1]
+
+    def p_conditional_expression(self, p):
+        """ conditional_expression  : binary_expression
+                                    | binary_expression CONDOP expression COLON conditional_expression
+        """
+        if len(p) == 2:
+            p[0] = p[1]
+        else:
+            p[0] = c_ast.TernaryOp(p[1], p[3], p[5], p[1].coord)
+
+    def p_binary_expression(self, p):
+        """ binary_expression   : cast_expression
+                                | binary_expression TIMES binary_expression
+                                | binary_expression DIVIDE binary_expression
+                                | binary_expression MOD binary_expression
+                                | binary_expression PLUS binary_expression
+                                | binary_expression MINUS binary_expression
+                                | binary_expression RSHIFT binary_expression
+                                | binary_expression LSHIFT binary_expression
+                                | binary_expression LT binary_expression
+                                | binary_expression LE binary_expression
+                                | binary_expression GE binary_expression
+                                | binary_expression GT binary_expression
+                                | binary_expression EQ binary_expression
+                                | binary_expression NE binary_expression
+                                | binary_expression AND binary_expression
+                                | binary_expression OR binary_expression
+                                | binary_expression XOR binary_expression
+                                | binary_expression LAND binary_expression
+                                | binary_expression LOR binary_expression
+        """
+        if len(p) == 2:
+            p[0] = p[1]
+        else:
+            p[0] = c_ast.BinaryOp(p[2], p[1], p[3], p[1].coord)
+
+    def p_cast_expression_1(self, p):
+        """ cast_expression : unary_expression """
+        p[0] = p[1]
+
+    def p_cast_expression_2(self, p):
+        """ cast_expression : LPAREN type_name RPAREN cast_expression """
+        p[0] = c_ast.Cast(p[2], p[4], self._token_coord(p, 1))
+
+    def p_unary_expression_1(self, p):
+        """ unary_expression    : postfix_expression """
+        p[0] = p[1]
+
+    def p_unary_expression_2(self, p):
+        """ unary_expression    : PLUSPLUS unary_expression
+                                | MINUSMINUS unary_expression
+                                | unary_operator cast_expression
+        """
+        p[0] = c_ast.UnaryOp(p[1], p[2], p[2].coord)
+
+    def p_unary_expression_3(self, p):
+        """ unary_expression    : SIZEOF unary_expression
+                                | SIZEOF LPAREN type_name RPAREN
+        """
+        p[0] = c_ast.UnaryOp(
+            p[1],
+            p[2] if len(p) == 3 else p[3],
+            self._token_coord(p, 1))
+
+    def p_unary_operator(self, p):
+        """ unary_operator  : AND
+                            | TIMES
+                            | PLUS
+                            | MINUS
+                            | NOT
+                            | LNOT
+        """
+        p[0] = p[1]
+
+    def p_postfix_expression_1(self, p):
+        """ postfix_expression  : primary_expression """
+        p[0] = p[1]
+
+    def p_postfix_expression_2(self, p):
+        """ postfix_expression  : postfix_expression LBRACKET expression RBRACKET """
+        p[0] = c_ast.ArrayRef(p[1], p[3], p[1].coord)
+
+    def p_postfix_expression_3(self, p):
+        """ postfix_expression  : postfix_expression LPAREN argument_expression_list RPAREN
+                                | postfix_expression LPAREN RPAREN
+        """
+        p[0] = c_ast.FuncCall(p[1], p[3] if len(p) == 5 else None, p[1].coord)
+
+    def p_postfix_expression_4(self, p):
+        """ postfix_expression  : postfix_expression PERIOD ID
+                                | postfix_expression PERIOD TYPEID
+                                | postfix_expression ARROW ID
+                                | postfix_expression ARROW TYPEID
+        """
+        field = c_ast.ID(p[3], self._token_coord(p, 3))
+        p[0] = c_ast.StructRef(p[1], p[2], field, p[1].coord)
+
+    def p_postfix_expression_5(self, p):
+        """ postfix_expression  : postfix_expression PLUSPLUS
+                                | postfix_expression MINUSMINUS
+        """
+        p[0] = c_ast.UnaryOp('p' + p[2], p[1], p[1].coord)
+
+    def p_postfix_expression_6(self, p):
+        """ postfix_expression  : LPAREN type_name RPAREN brace_open initializer_list brace_close
+                                | LPAREN type_name RPAREN brace_open initializer_list COMMA brace_close
+        """
+        p[0] = c_ast.CompoundLiteral(p[2], p[5])
+
+    def p_primary_expression_1(self, p):
+        """ primary_expression  : identifier """
+        p[0] = p[1]
+
+    def p_primary_expression_2(self, p):
+        """ primary_expression  : constant """
+        p[0] = p[1]
+
+    def p_primary_expression_3(self, p):
+        """ primary_expression  : unified_string_literal
+                                | unified_wstring_literal
+        """
+        p[0] = p[1]
+
+    def p_primary_expression_4(self, p):
+        """ primary_expression  : LPAREN expression RPAREN """
+        p[0] = p[2]
+
+    def p_primary_expression_5(self, p):
+        """ primary_expression  : OFFSETOF LPAREN type_name COMMA offsetof_member_designator RPAREN
+        """
+        coord = self._token_coord(p, 1)
+        p[0] = c_ast.FuncCall(c_ast.ID(p[1], coord),
+                              c_ast.ExprList([p[3], p[5]], coord),
+                              coord)
+
+    def p_offsetof_member_designator(self, p):
+        """ offsetof_member_designator : identifier
+                                         | offsetof_member_designator PERIOD identifier
+                                         | offsetof_member_designator LBRACKET expression RBRACKET
+        """
+        if len(p) == 2:
+            p[0] = p[1]
+        elif len(p) == 4:
+            field = c_ast.ID(p[3], self._token_coord(p, 3))
+            p[0] = c_ast.StructRef(p[1], p[2], field, p[1].coord)
+        elif len(p) == 5:
+            p[0] = c_ast.ArrayRef(p[1], p[3], p[1].coord)
+        else:
+            raise NotImplementedError("Unexpected parsing state. len(p): %u" % len(p))
+
+    def p_argument_expression_list(self, p):
+        """ argument_expression_list    : assignment_expression
+                                        | argument_expression_list COMMA assignment_expression
+        """
+        if len(p) == 2: # single expr
+            p[0] = c_ast.ExprList([p[1]], p[1].coord)
+        else:
+            p[1].exprs.append(p[3])
+            p[0] = p[1]
+
+    def p_identifier(self, p):
+        """ identifier  : ID """
+        p[0] = c_ast.ID(p[1], self._token_coord(p, 1))
+
+    def p_constant_1(self, p):
+        """ constant    : INT_CONST_DEC
+                        | INT_CONST_OCT
+                        | INT_CONST_HEX
+                        | INT_CONST_BIN
+        """
+        p[0] = c_ast.Constant(
+            'int', p[1], self._token_coord(p, 1))
+
+    def p_constant_2(self, p):
+        """ constant    : FLOAT_CONST
+                        | HEX_FLOAT_CONST
+        """
+        p[0] = c_ast.Constant(
+            'float', p[1], self._token_coord(p, 1))
+
+    def p_constant_3(self, p):
+        """ constant    : CHAR_CONST
+                        | WCHAR_CONST
+        """
+        p[0] = c_ast.Constant(
+            'char', p[1], self._token_coord(p, 1))
+
+    # The "unified" string and wstring literal rules are for supporting
+    # concatenation of adjacent string literals.
+    # I.e. "hello " "world" is seen by the C compiler as a single string literal
+    # with the value "hello world"
+    #
+    def p_unified_string_literal(self, p):
+        """ unified_string_literal  : STRING_LITERAL
+                                    | unified_string_literal STRING_LITERAL
+        """
+        if len(p) == 2: # single literal
+            p[0] = c_ast.Constant(
+                'string', p[1], self._token_coord(p, 1))
+        else:
+            p[1].value = p[1].value[:-1] + p[2][1:]
+            p[0] = p[1]
+
+    def p_unified_wstring_literal(self, p):
+        """ unified_wstring_literal : WSTRING_LITERAL
+                                    | unified_wstring_literal WSTRING_LITERAL
+        """
+        if len(p) == 2: # single literal
+            p[0] = c_ast.Constant(
+                'string', p[1], self._token_coord(p, 1))
+        else:
+            p[1].value = p[1].value.rstrip()[:-1] + p[2][2:]
+            p[0] = p[1]
+
+    def p_brace_open(self, p):
+        """ brace_open  :   LBRACE
+        """
+        p[0] = p[1]
+        p.set_lineno(0, p.lineno(1))
+
+    def p_brace_close(self, p):
+        """ brace_close :   RBRACE
+        """
+        p[0] = p[1]
+        p.set_lineno(0, p.lineno(1))
+
+    def p_empty(self, p):
+        'empty : '
+        p[0] = None
+
+    def p_error(self, p):
+        # If error recovery is added here in the future, make sure
+        # _get_yacc_lookahead_token still works!
+        #
+        if p:
+            self._parse_error(
+                'before: %s' % p.value,
+                self._coord(lineno=p.lineno,
+                            column=self.clex.find_tok_column(p)))
+        else:
+            self._parse_error('At end of input', self.clex.filename)
+
+
+#------------------------------------------------------------------------------
+if __name__ == "__main__":
+    import pprint
+    import time, sys
+
+    #t1 = time.time()
+    #parser = CParser(lex_optimize=True, yacc_debug=True, yacc_optimize=False)
+    #sys.write(time.time() - t1)
+
+    #buf = '''
+        #int (*k)(int);
+    #'''
+
+    ## set debuglevel to 2 for debugging
+    #t = parser.parse(buf, 'x.c', debuglevel=0)
+    #t.show(showcoord=True)
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/lextab.py b/venv/lib/python3.5/site-packages/pycparser/lextab.py
new file mode 100644
index 0000000..eb3ae07
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/lextab.py
@@ -0,0 +1,10 @@
+# lextab.py. This file automatically created by PLY (version 3.10). Don't edit!
+_tabversion   = '3.10'
+_lextokens    = set(('VOID', 'LBRACKET', 'WCHAR_CONST', 'FLOAT_CONST', 'MINUS', 'RPAREN', 'LONG', 'PLUS', 'ELLIPSIS', 'GT', 'GOTO', 'ENUM', 'PERIOD', 'GE', 'INT_CONST_DEC', 'ARROW', '__INT128', 'HEX_FLOAT_CONST', 'DOUBLE', 'MINUSEQUAL', 'INT_CONST_OCT', 'TIMESEQUAL', 'OR', 'SHORT', 'RETURN', 'RSHIFTEQUAL', 'RESTRICT', 'STATIC', 'SIZEOF', 'UNSIGNED', 'UNION', 'COLON', 'WSTRING_LITERAL', 'DIVIDE', 'FOR', 'PLUSPLUS', 'EQUALS', 'ELSE', 'INLINE', 'EQ', 'AND', 'TYPEID', 'LBRACE', 'PPHASH', 'INT', 'SIGNED', 'CONTINUE', 'NOT', 'OREQUAL', 'MOD', 'RSHIFT', 'DEFAULT', 'CHAR', 'WHILE', 'DIVEQUAL', 'EXTERN', 'CASE', 'LAND', 'REGISTER', 'MODEQUAL', 'NE', 'SWITCH', 'INT_CONST_HEX', '_COMPLEX', 'PPPRAGMASTR', 'PLUSEQUAL', 'STRUCT', 'CONDOP', 'BREAK', 'VOLATILE', 'PPPRAGMA', 'ANDEQUAL', 'INT_CONST_BIN', 'DO', 'LNOT', 'CONST', 'LOR', 'CHAR_CONST', 'LSHIFT', 'RBRACE', '_BOOL', 'LE', 'SEMI', 'LT', 'COMMA', 'OFFSETOF', 'TYPEDEF', 'XOR', 'AUTO', 'TIMES', 'LPAREN', 'MINUSMINUS', 'ID', 'IF', 'STRING_LITERAL', 'FLOAT', 'XOREQUAL', 'LSHIFTEQUAL', 'RBRACKET'))
+_lexreflags   = 64
+_lexliterals  = ''
+_lexstateinfo = {'ppline': 'exclusive', 'pppragma': 'exclusive', 'INITIAL': 'inclusive'}
+_lexstatere   = {'ppline': [('(?P<t_ppline_FILENAME>"([^"\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*")|(?P<t_ppline_LINE_NUMBER>(0(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?)|([1-9][0-9]*(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?))|(?P<t_ppline_NEWLINE>\\n)|(?P<t_ppline_PPLINE>line)', [None, ('t_ppline_FILENAME', 'FILENAME'), None, None, None, None, None, None, ('t_ppline_LINE_NUMBER', 'LINE_NUMBER'), None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, ('t_ppline_NEWLINE', 'NEWLINE'), ('t_ppline_PPLINE', 'PPLINE')])], 'pppragma': [('(?P<t_pppragma_NEWLINE>\\n)|(?P<t_pppragma_PPPRAGMA>pragma)|(?P<t_pppragma_STR>.+)', [None, ('t_pppragma_NEWLINE', 'NEWLINE'), ('t_pppragma_PPPRAGMA', 'PPPRAGMA'), ('t_pppragma_STR', 'STR')])], 'INITIAL': [('(?P<t_PPHASH>[ \\t]*\\#)|(?P<t_NEWLINE>\\n+)|(?P<t_LBRACE>\\{)|(?P<t_RBRACE>\\})|(?P<t_FLOAT_CONST>((((([0-9]*\\.[0-9]+)|([0-9]+\\.))([eE][-+]?[0-9]+)?)|([0-9]+([eE][-+]?[0-9]+)))[FfLl]?))|(?P<t_HEX_FLOAT_CONST>(0[xX]([0-9a-fA-F]+|((([0-9a-fA-F]+)?\\.[0-9a-fA-F]+)|([0-9a-fA-F]+\\.)))([pP][+-]?[0-9]+)[FfLl]?))|(?P<t_INT_CONST_HEX>0[xX][0-9a-fA-F]+(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?)', [None, ('t_PPHASH', 'PPHASH'), ('t_NEWLINE', 'NEWLINE'), ('t_LBRACE', 'LBRACE'), ('t_RBRACE', 'RBRACE'), ('t_FLOAT_CONST', 'FLOAT_CONST'), None, None, None, None, None, None, None, None, None, ('t_HEX_FLOAT_CONST', 'HEX_FLOAT_CONST'), None, None, None, None, None, None, None, ('t_INT_CONST_HEX', 'INT_CONST_HEX')]), ('(?P<t_INT_CONST_BIN>0[bB][01]+(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?)|(?P<t_BAD_CONST_OCT>0[0-7]*[89])|(?P<t_INT_CONST_OCT>0[0-7]*(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?)|(?P<t_INT_CONST_DEC>(0(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?)|([1-9][0-9]*(([uU]ll)|([uU]LL)|(ll[uU]?)|(LL[uU]?)|([uU][lL])|([lL][uU]?)|[uU])?))|(?P<t_CHAR_CONST>\'([^\'\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))\')|(?P<t_WCHAR_CONST>L\'([^\'\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))\')|(?P<t_UNMATCHED_QUOTE>(\'([^\'\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*\\n)|(\'([^\'\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*$))|(?P<t_BAD_CHAR_CONST>(\'([^\'\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))[^\'\n]+\')|(\'\')|(\'([\\\\][^a-zA-Z._~^!=&\\^\\-\\\\?\'"x0-7])[^\'\\n]*\'))', [None, ('t_INT_CONST_BIN', 'INT_CONST_BIN'), None, None, None, None, None, None, None, ('t_BAD_CONST_OCT', 'BAD_CONST_OCT'), ('t_INT_CONST_OCT', 'INT_CONST_OCT'), None, None, None, None, None, None, None, ('t_INT_CONST_DEC', 'INT_CONST_DEC'), None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, None, ('t_CHAR_CONST', 'CHAR_CONST'), None, None, None, None, None, None, ('t_WCHAR_CONST', 'WCHAR_CONST'), None, None, None, None, None, None, ('t_UNMATCHED_QUOTE', 'UNMATCHED_QUOTE'), None, None, None, None, None, None, None, None, None, None, None, None, None, None, ('t_BAD_CHAR_CONST', 'BAD_CHAR_CONST')]), ('(?P<t_WSTRING_LITERAL>L"([^"\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*")|(?P<t_BAD_STRING_LITERAL>"([^"\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*?([\\\\][^a-zA-Z._~^!=&\\^\\-\\\\?\'"x0-7])([^"\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*")|(?P<t_ID>[a-zA-Z_$][0-9a-zA-Z_$]*)|(?P<t_STRING_LITERAL>"([^"\\\\\\n]|(\\\\(([a-zA-Z._~!=&\\^\\-\\\\?\'"])|(\\d+)|(x[0-9a-fA-F]+))))*")|(?P<t_ELLIPSIS>\\.\\.\\.)|(?P<t_PLUSPLUS>\\+\\+)|(?P<t_LOR>\\|\\|)|(?P<t_XOREQUAL>\\^=)|(?P<t_OREQUAL>\\|=)|(?P<t_LSHIFTEQUAL><<=)|(?P<t_RSHIFTEQUAL>>>=)|(?P<t_PLUSEQUAL>\\+=)|(?P<t_TIMESEQUAL>\\*=)|(?P<t_PLUS>\\+)|(?P<t_MODEQUAL>%=)|(?P<t_DIVEQUAL>/=)', [None, ('t_WSTRING_LITERAL', 'WSTRING_LITERAL'), None, None, None, None, None, None, ('t_BAD_STRING_LITERAL', 'BAD_STRING_LITERAL'), None, None, None, None, None, None, None, None, None, None, None, None, None, ('t_ID', 'ID'), (None, 'STRING_LITERAL'), None, None, None, None, None, None, (None, 'ELLIPSIS'), (None, 'PLUSPLUS'), (None, 'LOR'), (None, 'XOREQUAL'), (None, 'OREQUAL'), (None, 'LSHIFTEQUAL'), (None, 'RSHIFTEQUAL'), (None, 'PLUSEQUAL'), (None, 'TIMESEQUAL'), (None, 'PLUS'), (None, 'MODEQUAL'), (None, 'DIVEQUAL')]), ('(?P<t_RBRACKET>\\])|(?P<t_CONDOP>\\?)|(?P<t_XOR>\\^)|(?P<t_LSHIFT><<)|(?P<t_LE><=)|(?P<t_LPAREN>\\()|(?P<t_ARROW>->)|(?P<t_EQ>==)|(?P<t_NE>!=)|(?P<t_MINUSMINUS>--)|(?P<t_OR>\\|)|(?P<t_TIMES>\\*)|(?P<t_LBRACKET>\\[)|(?P<t_GE>>=)|(?P<t_RPAREN>\\))|(?P<t_LAND>&&)|(?P<t_RSHIFT>>>)|(?P<t_MINUSEQUAL>-=)|(?P<t_PERIOD>\\.)|(?P<t_ANDEQUAL>&=)|(?P<t_EQUALS>=)|(?P<t_LT><)|(?P<t_COMMA>,)|(?P<t_DIVIDE>/)|(?P<t_AND>&)|(?P<t_MOD>%)|(?P<t_SEMI>;)|(?P<t_MINUS>-)|(?P<t_GT>>)|(?P<t_COLON>:)|(?P<t_NOT>~)|(?P<t_LNOT>!)', [None, (None, 'RBRACKET'), (None, 'CONDOP'), (None, 'XOR'), (None, 'LSHIFT'), (None, 'LE'), (None, 'LPAREN'), (None, 'ARROW'), (None, 'EQ'), (None, 'NE'), (None, 'MINUSMINUS'), (None, 'OR'), (None, 'TIMES'), (None, 'LBRACKET'), (None, 'GE'), (None, 'RPAREN'), (None, 'LAND'), (None, 'RSHIFT'), (None, 'MINUSEQUAL'), (None, 'PERIOD'), (None, 'ANDEQUAL'), (None, 'EQUALS'), (None, 'LT'), (None, 'COMMA'), (None, 'DIVIDE'), (None, 'AND'), (None, 'MOD'), (None, 'SEMI'), (None, 'MINUS'), (None, 'GT'), (None, 'COLON'), (None, 'NOT'), (None, 'LNOT')])]}
+_lexstateignore = {'ppline': ' \t', 'pppragma': ' \t', 'INITIAL': ' \t'}
+_lexstateerrorf = {'ppline': 't_ppline_error', 'pppragma': 't_pppragma_error', 'INITIAL': 't_error'}
+_lexstateeoff = {}
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/__init__.py b/venv/lib/python3.5/site-packages/pycparser/ply/__init__.py
new file mode 100644
index 0000000..6e53cdd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/__init__.py
@@ -0,0 +1,5 @@
+# PLY package
+# Author: David Beazley (dave@dabeaz.com)
+
+__version__ = '3.9'
+__all__ = ['lex','yacc']
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/pycparser/ply/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/cpp.py b/venv/lib/python3.5/site-packages/pycparser/ply/cpp.py
new file mode 100644
index 0000000..8ff0be1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/cpp.py
@@ -0,0 +1,907 @@
+# -----------------------------------------------------------------------------
+# cpp.py
+#
+# Author:  David Beazley (http://www.dabeaz.com)
+# Copyright (C) 2017
+# All rights reserved
+#
+# This module implements an ANSI-C style lexical preprocessor for PLY.
+# -----------------------------------------------------------------------------
+from __future__ import generators
+
+import sys
+
+# Some Python 3 compatibility shims
+if sys.version_info.major < 3:
+    STRING_TYPES = (str, unicode)
+else:
+    STRING_TYPES = str
+    xrange = range
+
+# -----------------------------------------------------------------------------
+# Default preprocessor lexer definitions.   These tokens are enough to get
+# a basic preprocessor working.   Other modules may import these if they want
+# -----------------------------------------------------------------------------
+
+tokens = (
+   'CPP_ID','CPP_INTEGER', 'CPP_FLOAT', 'CPP_STRING', 'CPP_CHAR', 'CPP_WS', 'CPP_COMMENT1', 'CPP_COMMENT2', 'CPP_POUND','CPP_DPOUND'
+)
+
+literals = "+-*/%|&~^<>=!?()[]{}.,;:\\\'\""
+
+# Whitespace
+def t_CPP_WS(t):
+    r'\s+'
+    t.lexer.lineno += t.value.count("\n")
+    return t
+
+t_CPP_POUND = r'\#'
+t_CPP_DPOUND = r'\#\#'
+
+# Identifier
+t_CPP_ID = r'[A-Za-z_][\w_]*'
+
+# Integer literal
+def CPP_INTEGER(t):
+    r'(((((0x)|(0X))[0-9a-fA-F]+)|(\d+))([uU][lL]|[lL][uU]|[uU]|[lL])?)'
+    return t
+
+t_CPP_INTEGER = CPP_INTEGER
+
+# Floating literal
+t_CPP_FLOAT = r'((\d+)(\.\d+)(e(\+|-)?(\d+))? | (\d+)e(\+|-)?(\d+))([lL]|[fF])?'
+
+# String literal
+def t_CPP_STRING(t):
+    r'\"([^\\\n]|(\\(.|\n)))*?\"'
+    t.lexer.lineno += t.value.count("\n")
+    return t
+
+# Character constant 'c' or L'c'
+def t_CPP_CHAR(t):
+    r'(L)?\'([^\\\n]|(\\(.|\n)))*?\''
+    t.lexer.lineno += t.value.count("\n")
+    return t
+
+# Comment
+def t_CPP_COMMENT1(t):
+    r'(/\*(.|\n)*?\*/)'
+    ncr = t.value.count("\n")
+    t.lexer.lineno += ncr
+    # replace with one space or a number of '\n'
+    t.type = 'CPP_WS'; t.value = '\n' * ncr if ncr else ' '
+    return t
+
+# Line comment
+def t_CPP_COMMENT2(t):
+    r'(//.*?(\n|$))'
+    # replace with '/n'
+    t.type = 'CPP_WS'; t.value = '\n'
+    return t
+
+def t_error(t):
+    t.type = t.value[0]
+    t.value = t.value[0]
+    t.lexer.skip(1)
+    return t
+
+import re
+import copy
+import time
+import os.path
+
+# -----------------------------------------------------------------------------
+# trigraph()
+#
+# Given an input string, this function replaces all trigraph sequences.
+# The following mapping is used:
+#
+#     ??=    #
+#     ??/    \
+#     ??'    ^
+#     ??(    [
+#     ??)    ]
+#     ??!    |
+#     ??<    {
+#     ??>    }
+#     ??-    ~
+# -----------------------------------------------------------------------------
+
+_trigraph_pat = re.compile(r'''\?\?[=/\'\(\)\!<>\-]''')
+_trigraph_rep = {
+    '=':'#',
+    '/':'\\',
+    "'":'^',
+    '(':'[',
+    ')':']',
+    '!':'|',
+    '<':'{',
+    '>':'}',
+    '-':'~'
+}
+
+def trigraph(input):
+    return _trigraph_pat.sub(lambda g: _trigraph_rep[g.group()[-1]],input)
+
+# ------------------------------------------------------------------
+# Macro object
+#
+# This object holds information about preprocessor macros
+#
+#    .name      - Macro name (string)
+#    .value     - Macro value (a list of tokens)
+#    .arglist   - List of argument names
+#    .variadic  - Boolean indicating whether or not variadic macro
+#    .vararg    - Name of the variadic parameter
+#
+# When a macro is created, the macro replacement token sequence is
+# pre-scanned and used to create patch lists that are later used
+# during macro expansion
+# ------------------------------------------------------------------
+
+class Macro(object):
+    def __init__(self,name,value,arglist=None,variadic=False):
+        self.name = name
+        self.value = value
+        self.arglist = arglist
+        self.variadic = variadic
+        if variadic:
+            self.vararg = arglist[-1]
+        self.source = None
+
+# ------------------------------------------------------------------
+# Preprocessor object
+#
+# Object representing a preprocessor.  Contains macro definitions,
+# include directories, and other information
+# ------------------------------------------------------------------
+
+class Preprocessor(object):
+    def __init__(self,lexer=None):
+        if lexer is None:
+            lexer = lex.lexer
+        self.lexer = lexer
+        self.macros = { }
+        self.path = []
+        self.temp_path = []
+
+        # Probe the lexer for selected tokens
+        self.lexprobe()
+
+        tm = time.localtime()
+        self.define("__DATE__ \"%s\"" % time.strftime("%b %d %Y",tm))
+        self.define("__TIME__ \"%s\"" % time.strftime("%H:%M:%S",tm))
+        self.parser = None
+
+    # -----------------------------------------------------------------------------
+    # tokenize()
+    #
+    # Utility function. Given a string of text, tokenize into a list of tokens
+    # -----------------------------------------------------------------------------
+
+    def tokenize(self,text):
+        tokens = []
+        self.lexer.input(text)
+        while True:
+            tok = self.lexer.token()
+            if not tok: break
+            tokens.append(tok)
+        return tokens
+
+    # ---------------------------------------------------------------------
+    # error()
+    #
+    # Report a preprocessor error/warning of some kind
+    # ----------------------------------------------------------------------
+
+    def error(self,file,line,msg):
+        print("%s:%d %s" % (file,line,msg))
+
+    # ----------------------------------------------------------------------
+    # lexprobe()
+    #
+    # This method probes the preprocessor lexer object to discover
+    # the token types of symbols that are important to the preprocessor.
+    # If this works right, the preprocessor will simply "work"
+    # with any suitable lexer regardless of how tokens have been named.
+    # ----------------------------------------------------------------------
+
+    def lexprobe(self):
+
+        # Determine the token type for identifiers
+        self.lexer.input("identifier")
+        tok = self.lexer.token()
+        if not tok or tok.value != "identifier":
+            print("Couldn't determine identifier type")
+        else:
+            self.t_ID = tok.type
+
+        # Determine the token type for integers
+        self.lexer.input("12345")
+        tok = self.lexer.token()
+        if not tok or int(tok.value) != 12345:
+            print("Couldn't determine integer type")
+        else:
+            self.t_INTEGER = tok.type
+            self.t_INTEGER_TYPE = type(tok.value)
+
+        # Determine the token type for strings enclosed in double quotes
+        self.lexer.input("\"filename\"")
+        tok = self.lexer.token()
+        if not tok or tok.value != "\"filename\"":
+            print("Couldn't determine string type")
+        else:
+            self.t_STRING = tok.type
+
+        # Determine the token type for whitespace--if any
+        self.lexer.input("  ")
+        tok = self.lexer.token()
+        if not tok or tok.value != "  ":
+            self.t_SPACE = None
+        else:
+            self.t_SPACE = tok.type
+
+        # Determine the token type for newlines
+        self.lexer.input("\n")
+        tok = self.lexer.token()
+        if not tok or tok.value != "\n":
+            self.t_NEWLINE = None
+            print("Couldn't determine token for newlines")
+        else:
+            self.t_NEWLINE = tok.type
+
+        self.t_WS = (self.t_SPACE, self.t_NEWLINE)
+
+        # Check for other characters used by the preprocessor
+        chars = [ '<','>','#','##','\\','(',')',',','.']
+        for c in chars:
+            self.lexer.input(c)
+            tok = self.lexer.token()
+            if not tok or tok.value != c:
+                print("Unable to lex '%s' required for preprocessor" % c)
+
+    # ----------------------------------------------------------------------
+    # add_path()
+    #
+    # Adds a search path to the preprocessor.
+    # ----------------------------------------------------------------------
+
+    def add_path(self,path):
+        self.path.append(path)
+
+    # ----------------------------------------------------------------------
+    # group_lines()
+    #
+    # Given an input string, this function splits it into lines.  Trailing whitespace
+    # is removed.   Any line ending with \ is grouped with the next line.  This
+    # function forms the lowest level of the preprocessor---grouping into text into
+    # a line-by-line format.
+    # ----------------------------------------------------------------------
+
+    def group_lines(self,input):
+        lex = self.lexer.clone()
+        lines = [x.rstrip() for x in input.splitlines()]
+        for i in xrange(len(lines)):
+            j = i+1
+            while lines[i].endswith('\\') and (j < len(lines)):
+                lines[i] = lines[i][:-1]+lines[j]
+                lines[j] = ""
+                j += 1
+
+        input = "\n".join(lines)
+        lex.input(input)
+        lex.lineno = 1
+
+        current_line = []
+        while True:
+            tok = lex.token()
+            if not tok:
+                break
+            current_line.append(tok)
+            if tok.type in self.t_WS and '\n' in tok.value:
+                yield current_line
+                current_line = []
+
+        if current_line:
+            yield current_line
+
+    # ----------------------------------------------------------------------
+    # tokenstrip()
+    #
+    # Remove leading/trailing whitespace tokens from a token list
+    # ----------------------------------------------------------------------
+
+    def tokenstrip(self,tokens):
+        i = 0
+        while i < len(tokens) and tokens[i].type in self.t_WS:
+            i += 1
+        del tokens[:i]
+        i = len(tokens)-1
+        while i >= 0 and tokens[i].type in self.t_WS:
+            i -= 1
+        del tokens[i+1:]
+        return tokens
+
+
+    # ----------------------------------------------------------------------
+    # collect_args()
+    #
+    # Collects comma separated arguments from a list of tokens.   The arguments
+    # must be enclosed in parenthesis.  Returns a tuple (tokencount,args,positions)
+    # where tokencount is the number of tokens consumed, args is a list of arguments,
+    # and positions is a list of integers containing the starting index of each
+    # argument.  Each argument is represented by a list of tokens.
+    #
+    # When collecting arguments, leading and trailing whitespace is removed
+    # from each argument.
+    #
+    # This function properly handles nested parenthesis and commas---these do not
+    # define new arguments.
+    # ----------------------------------------------------------------------
+
+    def collect_args(self,tokenlist):
+        args = []
+        positions = []
+        current_arg = []
+        nesting = 1
+        tokenlen = len(tokenlist)
+
+        # Search for the opening '('.
+        i = 0
+        while (i < tokenlen) and (tokenlist[i].type in self.t_WS):
+            i += 1
+
+        if (i < tokenlen) and (tokenlist[i].value == '('):
+            positions.append(i+1)
+        else:
+            self.error(self.source,tokenlist[0].lineno,"Missing '(' in macro arguments")
+            return 0, [], []
+
+        i += 1
+
+        while i < tokenlen:
+            t = tokenlist[i]
+            if t.value == '(':
+                current_arg.append(t)
+                nesting += 1
+            elif t.value == ')':
+                nesting -= 1
+                if nesting == 0:
+                    if current_arg:
+                        args.append(self.tokenstrip(current_arg))
+                        positions.append(i)
+                    return i+1,args,positions
+                current_arg.append(t)
+            elif t.value == ',' and nesting == 1:
+                args.append(self.tokenstrip(current_arg))
+                positions.append(i+1)
+                current_arg = []
+            else:
+                current_arg.append(t)
+            i += 1
+
+        # Missing end argument
+        self.error(self.source,tokenlist[-1].lineno,"Missing ')' in macro arguments")
+        return 0, [],[]
+
+    # ----------------------------------------------------------------------
+    # macro_prescan()
+    #
+    # Examine the macro value (token sequence) and identify patch points
+    # This is used to speed up macro expansion later on---we'll know
+    # right away where to apply patches to the value to form the expansion
+    # ----------------------------------------------------------------------
+
+    def macro_prescan(self,macro):
+        macro.patch     = []             # Standard macro arguments
+        macro.str_patch = []             # String conversion expansion
+        macro.var_comma_patch = []       # Variadic macro comma patch
+        i = 0
+        while i < len(macro.value):
+            if macro.value[i].type == self.t_ID and macro.value[i].value in macro.arglist:
+                argnum = macro.arglist.index(macro.value[i].value)
+                # Conversion of argument to a string
+                if i > 0 and macro.value[i-1].value == '#':
+                    macro.value[i] = copy.copy(macro.value[i])
+                    macro.value[i].type = self.t_STRING
+                    del macro.value[i-1]
+                    macro.str_patch.append((argnum,i-1))
+                    continue
+                # Concatenation
+                elif (i > 0 and macro.value[i-1].value == '##'):
+                    macro.patch.append(('c',argnum,i-1))
+                    del macro.value[i-1]
+                    continue
+                elif ((i+1) < len(macro.value) and macro.value[i+1].value == '##'):
+                    macro.patch.append(('c',argnum,i))
+                    i += 1
+                    continue
+                # Standard expansion
+                else:
+                    macro.patch.append(('e',argnum,i))
+            elif macro.value[i].value == '##':
+                if macro.variadic and (i > 0) and (macro.value[i-1].value == ',') and \
+                        ((i+1) < len(macro.value)) and (macro.value[i+1].type == self.t_ID) and \
+                        (macro.value[i+1].value == macro.vararg):
+                    macro.var_comma_patch.append(i-1)
+            i += 1
+        macro.patch.sort(key=lambda x: x[2],reverse=True)
+
+    # ----------------------------------------------------------------------
+    # macro_expand_args()
+    #
+    # Given a Macro and list of arguments (each a token list), this method
+    # returns an expanded version of a macro.  The return value is a token sequence
+    # representing the replacement macro tokens
+    # ----------------------------------------------------------------------
+
+    def macro_expand_args(self,macro,args):
+        # Make a copy of the macro token sequence
+        rep = [copy.copy(_x) for _x in macro.value]
+
+        # Make string expansion patches.  These do not alter the length of the replacement sequence
+
+        str_expansion = {}
+        for argnum, i in macro.str_patch:
+            if argnum not in str_expansion:
+                str_expansion[argnum] = ('"%s"' % "".join([x.value for x in args[argnum]])).replace("\\","\\\\")
+            rep[i] = copy.copy(rep[i])
+            rep[i].value = str_expansion[argnum]
+
+        # Make the variadic macro comma patch.  If the variadic macro argument is empty, we get rid
+        comma_patch = False
+        if macro.variadic and not args[-1]:
+            for i in macro.var_comma_patch:
+                rep[i] = None
+                comma_patch = True
+
+        # Make all other patches.   The order of these matters.  It is assumed that the patch list
+        # has been sorted in reverse order of patch location since replacements will cause the
+        # size of the replacement sequence to expand from the patch point.
+
+        expanded = { }
+        for ptype, argnum, i in macro.patch:
+            # Concatenation.   Argument is left unexpanded
+            if ptype == 'c':
+                rep[i:i+1] = args[argnum]
+            # Normal expansion.  Argument is macro expanded first
+            elif ptype == 'e':
+                if argnum not in expanded:
+                    expanded[argnum] = self.expand_macros(args[argnum])
+                rep[i:i+1] = expanded[argnum]
+
+        # Get rid of removed comma if necessary
+        if comma_patch:
+            rep = [_i for _i in rep if _i]
+
+        return rep
+
+
+    # ----------------------------------------------------------------------
+    # expand_macros()
+    #
+    # Given a list of tokens, this function performs macro expansion.
+    # The expanded argument is a dictionary that contains macros already
+    # expanded.  This is used to prevent infinite recursion.
+    # ----------------------------------------------------------------------
+
+    def expand_macros(self,tokens,expanded=None):
+        if expanded is None:
+            expanded = {}
+        i = 0
+        while i < len(tokens):
+            t = tokens[i]
+            if t.type == self.t_ID:
+                if t.value in self.macros and t.value not in expanded:
+                    # Yes, we found a macro match
+                    expanded[t.value] = True
+
+                    m = self.macros[t.value]
+                    if not m.arglist:
+                        # A simple macro
+                        ex = self.expand_macros([copy.copy(_x) for _x in m.value],expanded)
+                        for e in ex:
+                            e.lineno = t.lineno
+                        tokens[i:i+1] = ex
+                        i += len(ex)
+                    else:
+                        # A macro with arguments
+                        j = i + 1
+                        while j < len(tokens) and tokens[j].type in self.t_WS:
+                            j += 1
+                        if tokens[j].value == '(':
+                            tokcount,args,positions = self.collect_args(tokens[j:])
+                            if not m.variadic and len(args) !=  len(m.arglist):
+                                self.error(self.source,t.lineno,"Macro %s requires %d arguments" % (t.value,len(m.arglist)))
+                                i = j + tokcount
+                            elif m.variadic and len(args) < len(m.arglist)-1:
+                                if len(m.arglist) > 2:
+                                    self.error(self.source,t.lineno,"Macro %s must have at least %d arguments" % (t.value, len(m.arglist)-1))
+                                else:
+                                    self.error(self.source,t.lineno,"Macro %s must have at least %d argument" % (t.value, len(m.arglist)-1))
+                                i = j + tokcount
+                            else:
+                                if m.variadic:
+                                    if len(args) == len(m.arglist)-1:
+                                        args.append([])
+                                    else:
+                                        args[len(m.arglist)-1] = tokens[j+positions[len(m.arglist)-1]:j+tokcount-1]
+                                        del args[len(m.arglist):]
+
+                                # Get macro replacement text
+                                rep = self.macro_expand_args(m,args)
+                                rep = self.expand_macros(rep,expanded)
+                                for r in rep:
+                                    r.lineno = t.lineno
+                                tokens[i:j+tokcount] = rep
+                                i += len(rep)
+                    del expanded[t.value]
+                    continue
+                elif t.value == '__LINE__':
+                    t.type = self.t_INTEGER
+                    t.value = self.t_INTEGER_TYPE(t.lineno)
+
+            i += 1
+        return tokens
+
+    # ----------------------------------------------------------------------
+    # evalexpr()
+    #
+    # Evaluate an expression token sequence for the purposes of evaluating
+    # integral expressions.
+    # ----------------------------------------------------------------------
+
+    def evalexpr(self,tokens):
+        # tokens = tokenize(line)
+        # Search for defined macros
+        i = 0
+        while i < len(tokens):
+            if tokens[i].type == self.t_ID and tokens[i].value == 'defined':
+                j = i + 1
+                needparen = False
+                result = "0L"
+                while j < len(tokens):
+                    if tokens[j].type in self.t_WS:
+                        j += 1
+                        continue
+                    elif tokens[j].type == self.t_ID:
+                        if tokens[j].value in self.macros:
+                            result = "1L"
+                        else:
+                            result = "0L"
+                        if not needparen: break
+                    elif tokens[j].value == '(':
+                        needparen = True
+                    elif tokens[j].value == ')':
+                        break
+                    else:
+                        self.error(self.source,tokens[i].lineno,"Malformed defined()")
+                    j += 1
+                tokens[i].type = self.t_INTEGER
+                tokens[i].value = self.t_INTEGER_TYPE(result)
+                del tokens[i+1:j+1]
+            i += 1
+        tokens = self.expand_macros(tokens)
+        for i,t in enumerate(tokens):
+            if t.type == self.t_ID:
+                tokens[i] = copy.copy(t)
+                tokens[i].type = self.t_INTEGER
+                tokens[i].value = self.t_INTEGER_TYPE("0L")
+            elif t.type == self.t_INTEGER:
+                tokens[i] = copy.copy(t)
+                # Strip off any trailing suffixes
+                tokens[i].value = str(tokens[i].value)
+                while tokens[i].value[-1] not in "0123456789abcdefABCDEF":
+                    tokens[i].value = tokens[i].value[:-1]
+
+        expr = "".join([str(x.value) for x in tokens])
+        expr = expr.replace("&&"," and ")
+        expr = expr.replace("||"," or ")
+        expr = expr.replace("!"," not ")
+        try:
+            result = eval(expr)
+        except Exception:
+            self.error(self.source,tokens[0].lineno,"Couldn't evaluate expression")
+            result = 0
+        return result
+
+    # ----------------------------------------------------------------------
+    # parsegen()
+    #
+    # Parse an input string/
+    # ----------------------------------------------------------------------
+    def parsegen(self,input,source=None):
+
+        # Replace trigraph sequences
+        t = trigraph(input)
+        lines = self.group_lines(t)
+
+        if not source:
+            source = ""
+
+        self.define("__FILE__ \"%s\"" % source)
+
+        self.source = source
+        chunk = []
+        enable = True
+        iftrigger = False
+        ifstack = []
+
+        for x in lines:
+            for i,tok in enumerate(x):
+                if tok.type not in self.t_WS: break
+            if tok.value == '#':
+                # Preprocessor directive
+
+                # insert necessary whitespace instead of eaten tokens
+                for tok in x:
+                    if tok.type in self.t_WS and '\n' in tok.value:
+                        chunk.append(tok)
+
+                dirtokens = self.tokenstrip(x[i+1:])
+                if dirtokens:
+                    name = dirtokens[0].value
+                    args = self.tokenstrip(dirtokens[1:])
+                else:
+                    name = ""
+                    args = []
+
+                if name == 'define':
+                    if enable:
+                        for tok in self.expand_macros(chunk):
+                            yield tok
+                        chunk = []
+                        self.define(args)
+                elif name == 'include':
+                    if enable:
+                        for tok in self.expand_macros(chunk):
+                            yield tok
+                        chunk = []
+                        oldfile = self.macros['__FILE__']
+                        for tok in self.include(args):
+                            yield tok
+                        self.macros['__FILE__'] = oldfile
+                        self.source = source
+                elif name == 'undef':
+                    if enable:
+                        for tok in self.expand_macros(chunk):
+                            yield tok
+                        chunk = []
+                        self.undef(args)
+                elif name == 'ifdef':
+                    ifstack.append((enable,iftrigger))
+                    if enable:
+                        if not args[0].value in self.macros:
+                            enable = False
+                            iftrigger = False
+                        else:
+                            iftrigger = True
+                elif name == 'ifndef':
+                    ifstack.append((enable,iftrigger))
+                    if enable:
+                        if args[0].value in self.macros:
+                            enable = False
+                            iftrigger = False
+                        else:
+                            iftrigger = True
+                elif name == 'if':
+                    ifstack.append((enable,iftrigger))
+                    if enable:
+                        result = self.evalexpr(args)
+                        if not result:
+                            enable = False
+                            iftrigger = False
+                        else:
+                            iftrigger = True
+                elif name == 'elif':
+                    if ifstack:
+                        if ifstack[-1][0]:     # We only pay attention if outer "if" allows this
+                            if enable:         # If already true, we flip enable False
+                                enable = False
+                            elif not iftrigger:   # If False, but not triggered yet, we'll check expression
+                                result = self.evalexpr(args)
+                                if result:
+                                    enable  = True
+                                    iftrigger = True
+                    else:
+                        self.error(self.source,dirtokens[0].lineno,"Misplaced #elif")
+
+                elif name == 'else':
+                    if ifstack:
+                        if ifstack[-1][0]:
+                            if enable:
+                                enable = False
+                            elif not iftrigger:
+                                enable = True
+                                iftrigger = True
+                    else:
+                        self.error(self.source,dirtokens[0].lineno,"Misplaced #else")
+
+                elif name == 'endif':
+                    if ifstack:
+                        enable,iftrigger = ifstack.pop()
+                    else:
+                        self.error(self.source,dirtokens[0].lineno,"Misplaced #endif")
+                else:
+                    # Unknown preprocessor directive
+                    pass
+
+            else:
+                # Normal text
+                if enable:
+                    chunk.extend(x)
+
+        for tok in self.expand_macros(chunk):
+            yield tok
+        chunk = []
+
+    # ----------------------------------------------------------------------
+    # include()
+    #
+    # Implementation of file-inclusion
+    # ----------------------------------------------------------------------
+
+    def include(self,tokens):
+        # Try to extract the filename and then process an include file
+        if not tokens:
+            return
+        if tokens:
+            if tokens[0].value != '<' and tokens[0].type != self.t_STRING:
+                tokens = self.expand_macros(tokens)
+
+            if tokens[0].value == '<':
+                # Include <...>
+                i = 1
+                while i < len(tokens):
+                    if tokens[i].value == '>':
+                        break
+                    i += 1
+                else:
+                    print("Malformed #include <...>")
+                    return
+                filename = "".join([x.value for x in tokens[1:i]])
+                path = self.path + [""] + self.temp_path
+            elif tokens[0].type == self.t_STRING:
+                filename = tokens[0].value[1:-1]
+                path = self.temp_path + [""] + self.path
+            else:
+                print("Malformed #include statement")
+                return
+        for p in path:
+            iname = os.path.join(p,filename)
+            try:
+                data = open(iname,"r").read()
+                dname = os.path.dirname(iname)
+                if dname:
+                    self.temp_path.insert(0,dname)
+                for tok in self.parsegen(data,filename):
+                    yield tok
+                if dname:
+                    del self.temp_path[0]
+                break
+            except IOError:
+                pass
+        else:
+            print("Couldn't find '%s'" % filename)
+
+    # ----------------------------------------------------------------------
+    # define()
+    #
+    # Define a new macro
+    # ----------------------------------------------------------------------
+
+    def define(self,tokens):
+        if isinstance(tokens,STRING_TYPES):
+            tokens = self.tokenize(tokens)
+
+        linetok = tokens
+        try:
+            name = linetok[0]
+            if len(linetok) > 1:
+                mtype = linetok[1]
+            else:
+                mtype = None
+            if not mtype:
+                m = Macro(name.value,[])
+                self.macros[name.value] = m
+            elif mtype.type in self.t_WS:
+                # A normal macro
+                m = Macro(name.value,self.tokenstrip(linetok[2:]))
+                self.macros[name.value] = m
+            elif mtype.value == '(':
+                # A macro with arguments
+                tokcount, args, positions = self.collect_args(linetok[1:])
+                variadic = False
+                for a in args:
+                    if variadic:
+                        print("No more arguments may follow a variadic argument")
+                        break
+                    astr = "".join([str(_i.value) for _i in a])
+                    if astr == "...":
+                        variadic = True
+                        a[0].type = self.t_ID
+                        a[0].value = '__VA_ARGS__'
+                        variadic = True
+                        del a[1:]
+                        continue
+                    elif astr[-3:] == "..." and a[0].type == self.t_ID:
+                        variadic = True
+                        del a[1:]
+                        # If, for some reason, "." is part of the identifier, strip off the name for the purposes
+                        # of macro expansion
+                        if a[0].value[-3:] == '...':
+                            a[0].value = a[0].value[:-3]
+                        continue
+                    if len(a) > 1 or a[0].type != self.t_ID:
+                        print("Invalid macro argument")
+                        break
+                else:
+                    mvalue = self.tokenstrip(linetok[1+tokcount:])
+                    i = 0
+                    while i < len(mvalue):
+                        if i+1 < len(mvalue):
+                            if mvalue[i].type in self.t_WS and mvalue[i+1].value == '##':
+                                del mvalue[i]
+                                continue
+                            elif mvalue[i].value == '##' and mvalue[i+1].type in self.t_WS:
+                                del mvalue[i+1]
+                        i += 1
+                    m = Macro(name.value,mvalue,[x[0].value for x in args],variadic)
+                    self.macro_prescan(m)
+                    self.macros[name.value] = m
+            else:
+                print("Bad macro definition")
+        except LookupError:
+            print("Bad macro definition")
+
+    # ----------------------------------------------------------------------
+    # undef()
+    #
+    # Undefine a macro
+    # ----------------------------------------------------------------------
+
+    def undef(self,tokens):
+        id = tokens[0].value
+        try:
+            del self.macros[id]
+        except LookupError:
+            pass
+
+    # ----------------------------------------------------------------------
+    # parse()
+    #
+    # Parse input text.
+    # ----------------------------------------------------------------------
+    def parse(self,input,source=None,ignore={}):
+        self.ignore = ignore
+        self.parser = self.parsegen(input,source)
+
+    # ----------------------------------------------------------------------
+    # token()
+    #
+    # Method to return individual tokens
+    # ----------------------------------------------------------------------
+    def token(self):
+        try:
+            while True:
+                tok = next(self.parser)
+                if tok.type not in self.ignore: return tok
+        except StopIteration:
+            self.parser = None
+            return None
+
+if __name__ == '__main__':
+    import ply.lex as lex
+    lexer = lex.lex()
+
+    # Run a preprocessor
+    import sys
+    f = open(sys.argv[1])
+    input = f.read()
+
+    p = Preprocessor(lexer)
+    p.parse(input,sys.argv[1])
+    while True:
+        tok = p.token()
+        if not tok: break
+        print(p.source, tok)
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/ctokens.py b/venv/lib/python3.5/site-packages/pycparser/ply/ctokens.py
new file mode 100644
index 0000000..f6f6952
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/ctokens.py
@@ -0,0 +1,133 @@
+# ----------------------------------------------------------------------
+# ctokens.py
+#
+# Token specifications for symbols in ANSI C and C++.  This file is
+# meant to be used as a library in other tokenizers.
+# ----------------------------------------------------------------------
+
+# Reserved words
+
+tokens = [
+    # Literals (identifier, integer constant, float constant, string constant, char const)
+    'ID', 'TYPEID', 'INTEGER', 'FLOAT', 'STRING', 'CHARACTER',
+
+    # Operators (+,-,*,/,%,|,&,~,^,<<,>>, ||, &&, !, <, <=, >, >=, ==, !=)
+    'PLUS', 'MINUS', 'TIMES', 'DIVIDE', 'MODULO',
+    'OR', 'AND', 'NOT', 'XOR', 'LSHIFT', 'RSHIFT',
+    'LOR', 'LAND', 'LNOT',
+    'LT', 'LE', 'GT', 'GE', 'EQ', 'NE',
+    
+    # Assignment (=, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |=)
+    'EQUALS', 'TIMESEQUAL', 'DIVEQUAL', 'MODEQUAL', 'PLUSEQUAL', 'MINUSEQUAL',
+    'LSHIFTEQUAL','RSHIFTEQUAL', 'ANDEQUAL', 'XOREQUAL', 'OREQUAL',
+
+    # Increment/decrement (++,--)
+    'INCREMENT', 'DECREMENT',
+
+    # Structure dereference (->)
+    'ARROW',
+
+    # Ternary operator (?)
+    'TERNARY',
+    
+    # Delimeters ( ) [ ] { } , . ; :
+    'LPAREN', 'RPAREN',
+    'LBRACKET', 'RBRACKET',
+    'LBRACE', 'RBRACE',
+    'COMMA', 'PERIOD', 'SEMI', 'COLON',
+
+    # Ellipsis (...)
+    'ELLIPSIS',
+]
+    
+# Operators
+t_PLUS             = r'\+'
+t_MINUS            = r'-'
+t_TIMES            = r'\*'
+t_DIVIDE           = r'/'
+t_MODULO           = r'%'
+t_OR               = r'\|'
+t_AND              = r'&'
+t_NOT              = r'~'
+t_XOR              = r'\^'
+t_LSHIFT           = r'<<'
+t_RSHIFT           = r'>>'
+t_LOR              = r'\|\|'
+t_LAND             = r'&&'
+t_LNOT             = r'!'
+t_LT               = r'<'
+t_GT               = r'>'
+t_LE               = r'<='
+t_GE               = r'>='
+t_EQ               = r'=='
+t_NE               = r'!='
+
+# Assignment operators
+
+t_EQUALS           = r'='
+t_TIMESEQUAL       = r'\*='
+t_DIVEQUAL         = r'/='
+t_MODEQUAL         = r'%='
+t_PLUSEQUAL        = r'\+='
+t_MINUSEQUAL       = r'-='
+t_LSHIFTEQUAL      = r'<<='
+t_RSHIFTEQUAL      = r'>>='
+t_ANDEQUAL         = r'&='
+t_OREQUAL          = r'\|='
+t_XOREQUAL         = r'\^='
+
+# Increment/decrement
+t_INCREMENT        = r'\+\+'
+t_DECREMENT        = r'--'
+
+# ->
+t_ARROW            = r'->'
+
+# ?
+t_TERNARY          = r'\?'
+
+# Delimeters
+t_LPAREN           = r'\('
+t_RPAREN           = r'\)'
+t_LBRACKET         = r'\['
+t_RBRACKET         = r'\]'
+t_LBRACE           = r'\{'
+t_RBRACE           = r'\}'
+t_COMMA            = r','
+t_PERIOD           = r'\.'
+t_SEMI             = r';'
+t_COLON            = r':'
+t_ELLIPSIS         = r'\.\.\.'
+
+# Identifiers
+t_ID = r'[A-Za-z_][A-Za-z0-9_]*'
+
+# Integer literal
+t_INTEGER = r'\d+([uU]|[lL]|[uU][lL]|[lL][uU])?'
+
+# Floating literal
+t_FLOAT = r'((\d+)(\.\d+)(e(\+|-)?(\d+))? | (\d+)e(\+|-)?(\d+))([lL]|[fF])?'
+
+# String literal
+t_STRING = r'\"([^\\\n]|(\\.))*?\"'
+
+# Character constant 'c' or L'c'
+t_CHARACTER = r'(L)?\'([^\\\n]|(\\.))*?\''
+
+# Comment (C-Style)
+def t_COMMENT(t):
+    r'/\*(.|\n)*?\*/'
+    t.lexer.lineno += t.value.count('\n')
+    return t
+
+# Comment (C++-Style)
+def t_CPPCOMMENT(t):
+    r'//.*\n'
+    t.lexer.lineno += 1
+    return t
+
+
+    
+
+
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/lex.py b/venv/lib/python3.5/site-packages/pycparser/ply/lex.py
new file mode 100644
index 0000000..4bdd76c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/lex.py
@@ -0,0 +1,1099 @@
+# -----------------------------------------------------------------------------
+# ply: lex.py
+#
+# Copyright (C) 2001-2017
+# David M. Beazley (Dabeaz LLC)
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# * Neither the name of the David Beazley or Dabeaz LLC may be used to
+#   endorse or promote products derived from this software without
+#  specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -----------------------------------------------------------------------------
+
+__version__    = '3.10'
+__tabversion__ = '3.10'
+
+import re
+import sys
+import types
+import copy
+import os
+import inspect
+
+# This tuple contains known string types
+try:
+    # Python 2.6
+    StringTypes = (types.StringType, types.UnicodeType)
+except AttributeError:
+    # Python 3.0
+    StringTypes = (str, bytes)
+
+# This regular expression is used to match valid token names
+_is_identifier = re.compile(r'^[a-zA-Z0-9_]+$')
+
+# Exception thrown when invalid token encountered and no default error
+# handler is defined.
+class LexError(Exception):
+    def __init__(self, message, s):
+        self.args = (message,)
+        self.text = s
+
+
+# Token class.  This class is used to represent the tokens produced.
+class LexToken(object):
+    def __str__(self):
+        return 'LexToken(%s,%r,%d,%d)' % (self.type, self.value, self.lineno, self.lexpos)
+
+    def __repr__(self):
+        return str(self)
+
+
+# This object is a stand-in for a logging object created by the
+# logging module.
+
+class PlyLogger(object):
+    def __init__(self, f):
+        self.f = f
+
+    def critical(self, msg, *args, **kwargs):
+        self.f.write((msg % args) + '\n')
+
+    def warning(self, msg, *args, **kwargs):
+        self.f.write('WARNING: ' + (msg % args) + '\n')
+
+    def error(self, msg, *args, **kwargs):
+        self.f.write('ERROR: ' + (msg % args) + '\n')
+
+    info = critical
+    debug = critical
+
+
+# Null logger is used when no output is generated. Does nothing.
+class NullLogger(object):
+    def __getattribute__(self, name):
+        return self
+
+    def __call__(self, *args, **kwargs):
+        return self
+
+
+# -----------------------------------------------------------------------------
+#                        === Lexing Engine ===
+#
+# The following Lexer class implements the lexer runtime.   There are only
+# a few public methods and attributes:
+#
+#    input()          -  Store a new string in the lexer
+#    token()          -  Get the next token
+#    clone()          -  Clone the lexer
+#
+#    lineno           -  Current line number
+#    lexpos           -  Current position in the input string
+# -----------------------------------------------------------------------------
+
+class Lexer:
+    def __init__(self):
+        self.lexre = None             # Master regular expression. This is a list of
+                                      # tuples (re, findex) where re is a compiled
+                                      # regular expression and findex is a list
+                                      # mapping regex group numbers to rules
+        self.lexretext = None         # Current regular expression strings
+        self.lexstatere = {}          # Dictionary mapping lexer states to master regexs
+        self.lexstateretext = {}      # Dictionary mapping lexer states to regex strings
+        self.lexstaterenames = {}     # Dictionary mapping lexer states to symbol names
+        self.lexstate = 'INITIAL'     # Current lexer state
+        self.lexstatestack = []       # Stack of lexer states
+        self.lexstateinfo = None      # State information
+        self.lexstateignore = {}      # Dictionary of ignored characters for each state
+        self.lexstateerrorf = {}      # Dictionary of error functions for each state
+        self.lexstateeoff = {}        # Dictionary of eof functions for each state
+        self.lexreflags = 0           # Optional re compile flags
+        self.lexdata = None           # Actual input data (as a string)
+        self.lexpos = 0               # Current position in input text
+        self.lexlen = 0               # Length of the input text
+        self.lexerrorf = None         # Error rule (if any)
+        self.lexeoff = None           # EOF rule (if any)
+        self.lextokens = None         # List of valid tokens
+        self.lexignore = ''           # Ignored characters
+        self.lexliterals = ''         # Literal characters that can be passed through
+        self.lexmodule = None         # Module
+        self.lineno = 1               # Current line number
+        self.lexoptimize = False      # Optimized mode
+
+    def clone(self, object=None):
+        c = copy.copy(self)
+
+        # If the object parameter has been supplied, it means we are attaching the
+        # lexer to a new object.  In this case, we have to rebind all methods in
+        # the lexstatere and lexstateerrorf tables.
+
+        if object:
+            newtab = {}
+            for key, ritem in self.lexstatere.items():
+                newre = []
+                for cre, findex in ritem:
+                    newfindex = []
+                    for f in findex:
+                        if not f or not f[0]:
+                            newfindex.append(f)
+                            continue
+                        newfindex.append((getattr(object, f[0].__name__), f[1]))
+                newre.append((cre, newfindex))
+                newtab[key] = newre
+            c.lexstatere = newtab
+            c.lexstateerrorf = {}
+            for key, ef in self.lexstateerrorf.items():
+                c.lexstateerrorf[key] = getattr(object, ef.__name__)
+            c.lexmodule = object
+        return c
+
+    # ------------------------------------------------------------
+    # writetab() - Write lexer information to a table file
+    # ------------------------------------------------------------
+    def writetab(self, lextab, outputdir=''):
+        if isinstance(lextab, types.ModuleType):
+            raise IOError("Won't overwrite existing lextab module")
+        basetabmodule = lextab.split('.')[-1]
+        filename = os.path.join(outputdir, basetabmodule) + '.py'
+        with open(filename, 'w') as tf:
+            tf.write('# %s.py. This file automatically created by PLY (version %s). Don\'t edit!\n' % (basetabmodule, __version__))
+            tf.write('_tabversion   = %s\n' % repr(__tabversion__))
+            tf.write('_lextokens    = set(%s)\n' % repr(tuple(self.lextokens)))
+            tf.write('_lexreflags   = %s\n' % repr(self.lexreflags))
+            tf.write('_lexliterals  = %s\n' % repr(self.lexliterals))
+            tf.write('_lexstateinfo = %s\n' % repr(self.lexstateinfo))
+
+            # Rewrite the lexstatere table, replacing function objects with function names
+            tabre = {}
+            for statename, lre in self.lexstatere.items():
+                titem = []
+                for (pat, func), retext, renames in zip(lre, self.lexstateretext[statename], self.lexstaterenames[statename]):
+                    titem.append((retext, _funcs_to_names(func, renames)))
+                tabre[statename] = titem
+
+            tf.write('_lexstatere   = %s\n' % repr(tabre))
+            tf.write('_lexstateignore = %s\n' % repr(self.lexstateignore))
+
+            taberr = {}
+            for statename, ef in self.lexstateerrorf.items():
+                taberr[statename] = ef.__name__ if ef else None
+            tf.write('_lexstateerrorf = %s\n' % repr(taberr))
+
+            tabeof = {}
+            for statename, ef in self.lexstateeoff.items():
+                tabeof[statename] = ef.__name__ if ef else None
+            tf.write('_lexstateeoff = %s\n' % repr(tabeof))
+
+    # ------------------------------------------------------------
+    # readtab() - Read lexer information from a tab file
+    # ------------------------------------------------------------
+    def readtab(self, tabfile, fdict):
+        if isinstance(tabfile, types.ModuleType):
+            lextab = tabfile
+        else:
+            exec('import %s' % tabfile)
+            lextab = sys.modules[tabfile]
+
+        if getattr(lextab, '_tabversion', '0.0') != __tabversion__:
+            raise ImportError('Inconsistent PLY version')
+
+        self.lextokens      = lextab._lextokens
+        self.lexreflags     = lextab._lexreflags
+        self.lexliterals    = lextab._lexliterals
+        self.lextokens_all  = self.lextokens | set(self.lexliterals)
+        self.lexstateinfo   = lextab._lexstateinfo
+        self.lexstateignore = lextab._lexstateignore
+        self.lexstatere     = {}
+        self.lexstateretext = {}
+        for statename, lre in lextab._lexstatere.items():
+            titem = []
+            txtitem = []
+            for pat, func_name in lre:
+                titem.append((re.compile(pat, lextab._lexreflags), _names_to_funcs(func_name, fdict)))
+
+            self.lexstatere[statename] = titem
+            self.lexstateretext[statename] = txtitem
+
+        self.lexstateerrorf = {}
+        for statename, ef in lextab._lexstateerrorf.items():
+            self.lexstateerrorf[statename] = fdict[ef]
+
+        self.lexstateeoff = {}
+        for statename, ef in lextab._lexstateeoff.items():
+            self.lexstateeoff[statename] = fdict[ef]
+
+        self.begin('INITIAL')
+
+    # ------------------------------------------------------------
+    # input() - Push a new string into the lexer
+    # ------------------------------------------------------------
+    def input(self, s):
+        # Pull off the first character to see if s looks like a string
+        c = s[:1]
+        if not isinstance(c, StringTypes):
+            raise ValueError('Expected a string')
+        self.lexdata = s
+        self.lexpos = 0
+        self.lexlen = len(s)
+
+    # ------------------------------------------------------------
+    # begin() - Changes the lexing state
+    # ------------------------------------------------------------
+    def begin(self, state):
+        if state not in self.lexstatere:
+            raise ValueError('Undefined state')
+        self.lexre = self.lexstatere[state]
+        self.lexretext = self.lexstateretext[state]
+        self.lexignore = self.lexstateignore.get(state, '')
+        self.lexerrorf = self.lexstateerrorf.get(state, None)
+        self.lexeoff = self.lexstateeoff.get(state, None)
+        self.lexstate = state
+
+    # ------------------------------------------------------------
+    # push_state() - Changes the lexing state and saves old on stack
+    # ------------------------------------------------------------
+    def push_state(self, state):
+        self.lexstatestack.append(self.lexstate)
+        self.begin(state)
+
+    # ------------------------------------------------------------
+    # pop_state() - Restores the previous state
+    # ------------------------------------------------------------
+    def pop_state(self):
+        self.begin(self.lexstatestack.pop())
+
+    # ------------------------------------------------------------
+    # current_state() - Returns the current lexing state
+    # ------------------------------------------------------------
+    def current_state(self):
+        return self.lexstate
+
+    # ------------------------------------------------------------
+    # skip() - Skip ahead n characters
+    # ------------------------------------------------------------
+    def skip(self, n):
+        self.lexpos += n
+
+    # ------------------------------------------------------------
+    # opttoken() - Return the next token from the Lexer
+    #
+    # Note: This function has been carefully implemented to be as fast
+    # as possible.  Don't make changes unless you really know what
+    # you are doing
+    # ------------------------------------------------------------
+    def token(self):
+        # Make local copies of frequently referenced attributes
+        lexpos    = self.lexpos
+        lexlen    = self.lexlen
+        lexignore = self.lexignore
+        lexdata   = self.lexdata
+
+        while lexpos < lexlen:
+            # This code provides some short-circuit code for whitespace, tabs, and other ignored characters
+            if lexdata[lexpos] in lexignore:
+                lexpos += 1
+                continue
+
+            # Look for a regular expression match
+            for lexre, lexindexfunc in self.lexre:
+                m = lexre.match(lexdata, lexpos)
+                if not m:
+                    continue
+
+                # Create a token for return
+                tok = LexToken()
+                tok.value = m.group()
+                tok.lineno = self.lineno
+                tok.lexpos = lexpos
+
+                i = m.lastindex
+                func, tok.type = lexindexfunc[i]
+
+                if not func:
+                    # If no token type was set, it's an ignored token
+                    if tok.type:
+                        self.lexpos = m.end()
+                        return tok
+                    else:
+                        lexpos = m.end()
+                        break
+
+                lexpos = m.end()
+
+                # If token is processed by a function, call it
+
+                tok.lexer = self      # Set additional attributes useful in token rules
+                self.lexmatch = m
+                self.lexpos = lexpos
+
+                newtok = func(tok)
+
+                # Every function must return a token, if nothing, we just move to next token
+                if not newtok:
+                    lexpos    = self.lexpos         # This is here in case user has updated lexpos.
+                    lexignore = self.lexignore      # This is here in case there was a state change
+                    break
+
+                # Verify type of the token.  If not in the token map, raise an error
+                if not self.lexoptimize:
+                    if newtok.type not in self.lextokens_all:
+                        raise LexError("%s:%d: Rule '%s' returned an unknown token type '%s'" % (
+                            func.__code__.co_filename, func.__code__.co_firstlineno,
+                            func.__name__, newtok.type), lexdata[lexpos:])
+
+                return newtok
+            else:
+                # No match, see if in literals
+                if lexdata[lexpos] in self.lexliterals:
+                    tok = LexToken()
+                    tok.value = lexdata[lexpos]
+                    tok.lineno = self.lineno
+                    tok.type = tok.value
+                    tok.lexpos = lexpos
+                    self.lexpos = lexpos + 1
+                    return tok
+
+                # No match. Call t_error() if defined.
+                if self.lexerrorf:
+                    tok = LexToken()
+                    tok.value = self.lexdata[lexpos:]
+                    tok.lineno = self.lineno
+                    tok.type = 'error'
+                    tok.lexer = self
+                    tok.lexpos = lexpos
+                    self.lexpos = lexpos
+                    newtok = self.lexerrorf(tok)
+                    if lexpos == self.lexpos:
+                        # Error method didn't change text position at all. This is an error.
+                        raise LexError("Scanning error. Illegal character '%s'" % (lexdata[lexpos]), lexdata[lexpos:])
+                    lexpos = self.lexpos
+                    if not newtok:
+                        continue
+                    return newtok
+
+                self.lexpos = lexpos
+                raise LexError("Illegal character '%s' at index %d" % (lexdata[lexpos], lexpos), lexdata[lexpos:])
+
+        if self.lexeoff:
+            tok = LexToken()
+            tok.type = 'eof'
+            tok.value = ''
+            tok.lineno = self.lineno
+            tok.lexpos = lexpos
+            tok.lexer = self
+            self.lexpos = lexpos
+            newtok = self.lexeoff(tok)
+            return newtok
+
+        self.lexpos = lexpos + 1
+        if self.lexdata is None:
+            raise RuntimeError('No input string given with input()')
+        return None
+
+    # Iterator interface
+    def __iter__(self):
+        return self
+
+    def next(self):
+        t = self.token()
+        if t is None:
+            raise StopIteration
+        return t
+
+    __next__ = next
+
+# -----------------------------------------------------------------------------
+#                           ==== Lex Builder ===
+#
+# The functions and classes below are used to collect lexing information
+# and build a Lexer object from it.
+# -----------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+# _get_regex(func)
+#
+# Returns the regular expression assigned to a function either as a doc string
+# or as a .regex attribute attached by the @TOKEN decorator.
+# -----------------------------------------------------------------------------
+def _get_regex(func):
+    return getattr(func, 'regex', func.__doc__)
+
+# -----------------------------------------------------------------------------
+# get_caller_module_dict()
+#
+# This function returns a dictionary containing all of the symbols defined within
+# a caller further down the call stack.  This is used to get the environment
+# associated with the yacc() call if none was provided.
+# -----------------------------------------------------------------------------
+def get_caller_module_dict(levels):
+    f = sys._getframe(levels)
+    ldict = f.f_globals.copy()
+    if f.f_globals != f.f_locals:
+        ldict.update(f.f_locals)
+    return ldict
+
+# -----------------------------------------------------------------------------
+# _funcs_to_names()
+#
+# Given a list of regular expression functions, this converts it to a list
+# suitable for output to a table file
+# -----------------------------------------------------------------------------
+def _funcs_to_names(funclist, namelist):
+    result = []
+    for f, name in zip(funclist, namelist):
+        if f and f[0]:
+            result.append((name, f[1]))
+        else:
+            result.append(f)
+    return result
+
+# -----------------------------------------------------------------------------
+# _names_to_funcs()
+#
+# Given a list of regular expression function names, this converts it back to
+# functions.
+# -----------------------------------------------------------------------------
+def _names_to_funcs(namelist, fdict):
+    result = []
+    for n in namelist:
+        if n and n[0]:
+            result.append((fdict[n[0]], n[1]))
+        else:
+            result.append(n)
+    return result
+
+# -----------------------------------------------------------------------------
+# _form_master_re()
+#
+# This function takes a list of all of the regex components and attempts to
+# form the master regular expression.  Given limitations in the Python re
+# module, it may be necessary to break the master regex into separate expressions.
+# -----------------------------------------------------------------------------
+def _form_master_re(relist, reflags, ldict, toknames):
+    if not relist:
+        return []
+    regex = '|'.join(relist)
+    try:
+        lexre = re.compile(regex, reflags)
+
+        # Build the index to function map for the matching engine
+        lexindexfunc = [None] * (max(lexre.groupindex.values()) + 1)
+        lexindexnames = lexindexfunc[:]
+
+        for f, i in lexre.groupindex.items():
+            handle = ldict.get(f, None)
+            if type(handle) in (types.FunctionType, types.MethodType):
+                lexindexfunc[i] = (handle, toknames[f])
+                lexindexnames[i] = f
+            elif handle is not None:
+                lexindexnames[i] = f
+                if f.find('ignore_') > 0:
+                    lexindexfunc[i] = (None, None)
+                else:
+                    lexindexfunc[i] = (None, toknames[f])
+
+        return [(lexre, lexindexfunc)], [regex], [lexindexnames]
+    except Exception:
+        m = int(len(relist)/2)
+        if m == 0:
+            m = 1
+        llist, lre, lnames = _form_master_re(relist[:m], reflags, ldict, toknames)
+        rlist, rre, rnames = _form_master_re(relist[m:], reflags, ldict, toknames)
+        return (llist+rlist), (lre+rre), (lnames+rnames)
+
+# -----------------------------------------------------------------------------
+# def _statetoken(s,names)
+#
+# Given a declaration name s of the form "t_" and a dictionary whose keys are
+# state names, this function returns a tuple (states,tokenname) where states
+# is a tuple of state names and tokenname is the name of the token.  For example,
+# calling this with s = "t_foo_bar_SPAM" might return (('foo','bar'),'SPAM')
+# -----------------------------------------------------------------------------
+def _statetoken(s, names):
+    nonstate = 1
+    parts = s.split('_')
+    for i, part in enumerate(parts[1:], 1):
+        if part not in names and part != 'ANY':
+            break
+
+    if i > 1:
+        states = tuple(parts[1:i])
+    else:
+        states = ('INITIAL',)
+
+    if 'ANY' in states:
+        states = tuple(names)
+
+    tokenname = '_'.join(parts[i:])
+    return (states, tokenname)
+
+
+# -----------------------------------------------------------------------------
+# LexerReflect()
+#
+# This class represents information needed to build a lexer as extracted from a
+# user's input file.
+# -----------------------------------------------------------------------------
+class LexerReflect(object):
+    def __init__(self, ldict, log=None, reflags=0):
+        self.ldict      = ldict
+        self.error_func = None
+        self.tokens     = []
+        self.reflags    = reflags
+        self.stateinfo  = {'INITIAL': 'inclusive'}
+        self.modules    = set()
+        self.error      = False
+        self.log        = PlyLogger(sys.stderr) if log is None else log
+
+    # Get all of the basic information
+    def get_all(self):
+        self.get_tokens()
+        self.get_literals()
+        self.get_states()
+        self.get_rules()
+
+    # Validate all of the information
+    def validate_all(self):
+        self.validate_tokens()
+        self.validate_literals()
+        self.validate_rules()
+        return self.error
+
+    # Get the tokens map
+    def get_tokens(self):
+        tokens = self.ldict.get('tokens', None)
+        if not tokens:
+            self.log.error('No token list is defined')
+            self.error = True
+            return
+
+        if not isinstance(tokens, (list, tuple)):
+            self.log.error('tokens must be a list or tuple')
+            self.error = True
+            return
+
+        if not tokens:
+            self.log.error('tokens is empty')
+            self.error = True
+            return
+
+        self.tokens = tokens
+
+    # Validate the tokens
+    def validate_tokens(self):
+        terminals = {}
+        for n in self.tokens:
+            if not _is_identifier.match(n):
+                self.log.error("Bad token name '%s'", n)
+                self.error = True
+            if n in terminals:
+                self.log.warning("Token '%s' multiply defined", n)
+            terminals[n] = 1
+
+    # Get the literals specifier
+    def get_literals(self):
+        self.literals = self.ldict.get('literals', '')
+        if not self.literals:
+            self.literals = ''
+
+    # Validate literals
+    def validate_literals(self):
+        try:
+            for c in self.literals:
+                if not isinstance(c, StringTypes) or len(c) > 1:
+                    self.log.error('Invalid literal %s. Must be a single character', repr(c))
+                    self.error = True
+
+        except TypeError:
+            self.log.error('Invalid literals specification. literals must be a sequence of characters')
+            self.error = True
+
+    def get_states(self):
+        self.states = self.ldict.get('states', None)
+        # Build statemap
+        if self.states:
+            if not isinstance(self.states, (tuple, list)):
+                self.log.error('states must be defined as a tuple or list')
+                self.error = True
+            else:
+                for s in self.states:
+                    if not isinstance(s, tuple) or len(s) != 2:
+                        self.log.error("Invalid state specifier %s. Must be a tuple (statename,'exclusive|inclusive')", repr(s))
+                        self.error = True
+                        continue
+                    name, statetype = s
+                    if not isinstance(name, StringTypes):
+                        self.log.error('State name %s must be a string', repr(name))
+                        self.error = True
+                        continue
+                    if not (statetype == 'inclusive' or statetype == 'exclusive'):
+                        self.log.error("State type for state %s must be 'inclusive' or 'exclusive'", name)
+                        self.error = True
+                        continue
+                    if name in self.stateinfo:
+                        self.log.error("State '%s' already defined", name)
+                        self.error = True
+                        continue
+                    self.stateinfo[name] = statetype
+
+    # Get all of the symbols with a t_ prefix and sort them into various
+    # categories (functions, strings, error functions, and ignore characters)
+
+    def get_rules(self):
+        tsymbols = [f for f in self.ldict if f[:2] == 't_']
+
+        # Now build up a list of functions and a list of strings
+        self.toknames = {}        # Mapping of symbols to token names
+        self.funcsym  = {}        # Symbols defined as functions
+        self.strsym   = {}        # Symbols defined as strings
+        self.ignore   = {}        # Ignore strings by state
+        self.errorf   = {}        # Error functions by state
+        self.eoff     = {}        # EOF functions by state
+
+        for s in self.stateinfo:
+            self.funcsym[s] = []
+            self.strsym[s] = []
+
+        if len(tsymbols) == 0:
+            self.log.error('No rules of the form t_rulename are defined')
+            self.error = True
+            return
+
+        for f in tsymbols:
+            t = self.ldict[f]
+            states, tokname = _statetoken(f, self.stateinfo)
+            self.toknames[f] = tokname
+
+            if hasattr(t, '__call__'):
+                if tokname == 'error':
+                    for s in states:
+                        self.errorf[s] = t
+                elif tokname == 'eof':
+                    for s in states:
+                        self.eoff[s] = t
+                elif tokname == 'ignore':
+                    line = t.__code__.co_firstlineno
+                    file = t.__code__.co_filename
+                    self.log.error("%s:%d: Rule '%s' must be defined as a string", file, line, t.__name__)
+                    self.error = True
+                else:
+                    for s in states:
+                        self.funcsym[s].append((f, t))
+            elif isinstance(t, StringTypes):
+                if tokname == 'ignore':
+                    for s in states:
+                        self.ignore[s] = t
+                    if '\\' in t:
+                        self.log.warning("%s contains a literal backslash '\\'", f)
+
+                elif tokname == 'error':
+                    self.log.error("Rule '%s' must be defined as a function", f)
+                    self.error = True
+                else:
+                    for s in states:
+                        self.strsym[s].append((f, t))
+            else:
+                self.log.error('%s not defined as a function or string', f)
+                self.error = True
+
+        # Sort the functions by line number
+        for f in self.funcsym.values():
+            f.sort(key=lambda x: x[1].__code__.co_firstlineno)
+
+        # Sort the strings by regular expression length
+        for s in self.strsym.values():
+            s.sort(key=lambda x: len(x[1]), reverse=True)
+
+    # Validate all of the t_rules collected
+    def validate_rules(self):
+        for state in self.stateinfo:
+            # Validate all rules defined by functions
+
+            for fname, f in self.funcsym[state]:
+                line = f.__code__.co_firstlineno
+                file = f.__code__.co_filename
+                module = inspect.getmodule(f)
+                self.modules.add(module)
+
+                tokname = self.toknames[fname]
+                if isinstance(f, types.MethodType):
+                    reqargs = 2
+                else:
+                    reqargs = 1
+                nargs = f.__code__.co_argcount
+                if nargs > reqargs:
+                    self.log.error("%s:%d: Rule '%s' has too many arguments", file, line, f.__name__)
+                    self.error = True
+                    continue
+
+                if nargs < reqargs:
+                    self.log.error("%s:%d: Rule '%s' requires an argument", file, line, f.__name__)
+                    self.error = True
+                    continue
+
+                if not _get_regex(f):
+                    self.log.error("%s:%d: No regular expression defined for rule '%s'", file, line, f.__name__)
+                    self.error = True
+                    continue
+
+                try:
+                    c = re.compile('(?P<%s>%s)' % (fname, _get_regex(f)), self.reflags)
+                    if c.match(''):
+                        self.log.error("%s:%d: Regular expression for rule '%s' matches empty string", file, line, f.__name__)
+                        self.error = True
+                except re.error as e:
+                    self.log.error("%s:%d: Invalid regular expression for rule '%s'. %s", file, line, f.__name__, e)
+                    if '#' in _get_regex(f):
+                        self.log.error("%s:%d. Make sure '#' in rule '%s' is escaped with '\\#'", file, line, f.__name__)
+                    self.error = True
+
+            # Validate all rules defined by strings
+            for name, r in self.strsym[state]:
+                tokname = self.toknames[name]
+                if tokname == 'error':
+                    self.log.error("Rule '%s' must be defined as a function", name)
+                    self.error = True
+                    continue
+
+                if tokname not in self.tokens and tokname.find('ignore_') < 0:
+                    self.log.error("Rule '%s' defined for an unspecified token %s", name, tokname)
+                    self.error = True
+                    continue
+
+                try:
+                    c = re.compile('(?P<%s>%s)' % (name, r), self.reflags)
+                    if (c.match('')):
+                        self.log.error("Regular expression for rule '%s' matches empty string", name)
+                        self.error = True
+                except re.error as e:
+                    self.log.error("Invalid regular expression for rule '%s'. %s", name, e)
+                    if '#' in r:
+                        self.log.error("Make sure '#' in rule '%s' is escaped with '\\#'", name)
+                    self.error = True
+
+            if not self.funcsym[state] and not self.strsym[state]:
+                self.log.error("No rules defined for state '%s'", state)
+                self.error = True
+
+            # Validate the error function
+            efunc = self.errorf.get(state, None)
+            if efunc:
+                f = efunc
+                line = f.__code__.co_firstlineno
+                file = f.__code__.co_filename
+                module = inspect.getmodule(f)
+                self.modules.add(module)
+
+                if isinstance(f, types.MethodType):
+                    reqargs = 2
+                else:
+                    reqargs = 1
+                nargs = f.__code__.co_argcount
+                if nargs > reqargs:
+                    self.log.error("%s:%d: Rule '%s' has too many arguments", file, line, f.__name__)
+                    self.error = True
+
+                if nargs < reqargs:
+                    self.log.error("%s:%d: Rule '%s' requires an argument", file, line, f.__name__)
+                    self.error = True
+
+        for module in self.modules:
+            self.validate_module(module)
+
+    # -----------------------------------------------------------------------------
+    # validate_module()
+    #
+    # This checks to see if there are duplicated t_rulename() functions or strings
+    # in the parser input file.  This is done using a simple regular expression
+    # match on each line in the source code of the given module.
+    # -----------------------------------------------------------------------------
+
+    def validate_module(self, module):
+        try:
+            lines, linen = inspect.getsourcelines(module)
+        except IOError:
+            return
+
+        fre = re.compile(r'\s*def\s+(t_[a-zA-Z_0-9]*)\(')
+        sre = re.compile(r'\s*(t_[a-zA-Z_0-9]*)\s*=')
+
+        counthash = {}
+        linen += 1
+        for line in lines:
+            m = fre.match(line)
+            if not m:
+                m = sre.match(line)
+            if m:
+                name = m.group(1)
+                prev = counthash.get(name)
+                if not prev:
+                    counthash[name] = linen
+                else:
+                    filename = inspect.getsourcefile(module)
+                    self.log.error('%s:%d: Rule %s redefined. Previously defined on line %d', filename, linen, name, prev)
+                    self.error = True
+            linen += 1
+
+# -----------------------------------------------------------------------------
+# lex(module)
+#
+# Build all of the regular expression rules from definitions in the supplied module
+# -----------------------------------------------------------------------------
+def lex(module=None, object=None, debug=False, optimize=False, lextab='lextab',
+        reflags=int(re.VERBOSE), nowarn=False, outputdir=None, debuglog=None, errorlog=None):
+
+    if lextab is None:
+        lextab = 'lextab'
+
+    global lexer
+
+    ldict = None
+    stateinfo  = {'INITIAL': 'inclusive'}
+    lexobj = Lexer()
+    lexobj.lexoptimize = optimize
+    global token, input
+
+    if errorlog is None:
+        errorlog = PlyLogger(sys.stderr)
+
+    if debug:
+        if debuglog is None:
+            debuglog = PlyLogger(sys.stderr)
+
+    # Get the module dictionary used for the lexer
+    if object:
+        module = object
+
+    # Get the module dictionary used for the parser
+    if module:
+        _items = [(k, getattr(module, k)) for k in dir(module)]
+        ldict = dict(_items)
+        # If no __file__ attribute is available, try to obtain it from the __module__ instead
+        if '__file__' not in ldict:
+            ldict['__file__'] = sys.modules[ldict['__module__']].__file__
+    else:
+        ldict = get_caller_module_dict(2)
+
+    # Determine if the module is package of a package or not.
+    # If so, fix the tabmodule setting so that tables load correctly
+    pkg = ldict.get('__package__')
+    if pkg and isinstance(lextab, str):
+        if '.' not in lextab:
+            lextab = pkg + '.' + lextab
+
+    # Collect parser information from the dictionary
+    linfo = LexerReflect(ldict, log=errorlog, reflags=reflags)
+    linfo.get_all()
+    if not optimize:
+        if linfo.validate_all():
+            raise SyntaxError("Can't build lexer")
+
+    if optimize and lextab:
+        try:
+            lexobj.readtab(lextab, ldict)
+            token = lexobj.token
+            input = lexobj.input
+            lexer = lexobj
+            return lexobj
+
+        except ImportError:
+            pass
+
+    # Dump some basic debugging information
+    if debug:
+        debuglog.info('lex: tokens   = %r', linfo.tokens)
+        debuglog.info('lex: literals = %r', linfo.literals)
+        debuglog.info('lex: states   = %r', linfo.stateinfo)
+
+    # Build a dictionary of valid token names
+    lexobj.lextokens = set()
+    for n in linfo.tokens:
+        lexobj.lextokens.add(n)
+
+    # Get literals specification
+    if isinstance(linfo.literals, (list, tuple)):
+        lexobj.lexliterals = type(linfo.literals[0])().join(linfo.literals)
+    else:
+        lexobj.lexliterals = linfo.literals
+
+    lexobj.lextokens_all = lexobj.lextokens | set(lexobj.lexliterals)
+
+    # Get the stateinfo dictionary
+    stateinfo = linfo.stateinfo
+
+    regexs = {}
+    # Build the master regular expressions
+    for state in stateinfo:
+        regex_list = []
+
+        # Add rules defined by functions first
+        for fname, f in linfo.funcsym[state]:
+            line = f.__code__.co_firstlineno
+            file = f.__code__.co_filename
+            regex_list.append('(?P<%s>%s)' % (fname, _get_regex(f)))
+            if debug:
+                debuglog.info("lex: Adding rule %s -> '%s' (state '%s')", fname, _get_regex(f), state)
+
+        # Now add all of the simple rules
+        for name, r in linfo.strsym[state]:
+            regex_list.append('(?P<%s>%s)' % (name, r))
+            if debug:
+                debuglog.info("lex: Adding rule %s -> '%s' (state '%s')", name, r, state)
+
+        regexs[state] = regex_list
+
+    # Build the master regular expressions
+
+    if debug:
+        debuglog.info('lex: ==== MASTER REGEXS FOLLOW ====')
+
+    for state in regexs:
+        lexre, re_text, re_names = _form_master_re(regexs[state], reflags, ldict, linfo.toknames)
+        lexobj.lexstatere[state] = lexre
+        lexobj.lexstateretext[state] = re_text
+        lexobj.lexstaterenames[state] = re_names
+        if debug:
+            for i, text in enumerate(re_text):
+                debuglog.info("lex: state '%s' : regex[%d] = '%s'", state, i, text)
+
+    # For inclusive states, we need to add the regular expressions from the INITIAL state
+    for state, stype in stateinfo.items():
+        if state != 'INITIAL' and stype == 'inclusive':
+            lexobj.lexstatere[state].extend(lexobj.lexstatere['INITIAL'])
+            lexobj.lexstateretext[state].extend(lexobj.lexstateretext['INITIAL'])
+            lexobj.lexstaterenames[state].extend(lexobj.lexstaterenames['INITIAL'])
+
+    lexobj.lexstateinfo = stateinfo
+    lexobj.lexre = lexobj.lexstatere['INITIAL']
+    lexobj.lexretext = lexobj.lexstateretext['INITIAL']
+    lexobj.lexreflags = reflags
+
+    # Set up ignore variables
+    lexobj.lexstateignore = linfo.ignore
+    lexobj.lexignore = lexobj.lexstateignore.get('INITIAL', '')
+
+    # Set up error functions
+    lexobj.lexstateerrorf = linfo.errorf
+    lexobj.lexerrorf = linfo.errorf.get('INITIAL', None)
+    if not lexobj.lexerrorf:
+        errorlog.warning('No t_error rule is defined')
+
+    # Set up eof functions
+    lexobj.lexstateeoff = linfo.eoff
+    lexobj.lexeoff = linfo.eoff.get('INITIAL', None)
+
+    # Check state information for ignore and error rules
+    for s, stype in stateinfo.items():
+        if stype == 'exclusive':
+            if s not in linfo.errorf:
+                errorlog.warning("No error rule is defined for exclusive state '%s'", s)
+            if s not in linfo.ignore and lexobj.lexignore:
+                errorlog.warning("No ignore rule is defined for exclusive state '%s'", s)
+        elif stype == 'inclusive':
+            if s not in linfo.errorf:
+                linfo.errorf[s] = linfo.errorf.get('INITIAL', None)
+            if s not in linfo.ignore:
+                linfo.ignore[s] = linfo.ignore.get('INITIAL', '')
+
+    # Create global versions of the token() and input() functions
+    token = lexobj.token
+    input = lexobj.input
+    lexer = lexobj
+
+    # If in optimize mode, we write the lextab
+    if lextab and optimize:
+        if outputdir is None:
+            # If no output directory is set, the location of the output files
+            # is determined according to the following rules:
+            #     - If lextab specifies a package, files go into that package directory
+            #     - Otherwise, files go in the same directory as the specifying module
+            if isinstance(lextab, types.ModuleType):
+                srcfile = lextab.__file__
+            else:
+                if '.' not in lextab:
+                    srcfile = ldict['__file__']
+                else:
+                    parts = lextab.split('.')
+                    pkgname = '.'.join(parts[:-1])
+                    exec('import %s' % pkgname)
+                    srcfile = getattr(sys.modules[pkgname], '__file__', '')
+            outputdir = os.path.dirname(srcfile)
+        try:
+            lexobj.writetab(lextab, outputdir)
+        except IOError as e:
+            errorlog.warning("Couldn't write lextab module %r. %s" % (lextab, e))
+
+    return lexobj
+
+# -----------------------------------------------------------------------------
+# runmain()
+#
+# This runs the lexer as a main program
+# -----------------------------------------------------------------------------
+
+def runmain(lexer=None, data=None):
+    if not data:
+        try:
+            filename = sys.argv[1]
+            f = open(filename)
+            data = f.read()
+            f.close()
+        except IndexError:
+            sys.stdout.write('Reading from standard input (type EOF to end):\n')
+            data = sys.stdin.read()
+
+    if lexer:
+        _input = lexer.input
+    else:
+        _input = input
+    _input(data)
+    if lexer:
+        _token = lexer.token
+    else:
+        _token = token
+
+    while True:
+        tok = _token()
+        if not tok:
+            break
+        sys.stdout.write('(%s,%r,%d,%d)\n' % (tok.type, tok.value, tok.lineno, tok.lexpos))
+
+# -----------------------------------------------------------------------------
+# @TOKEN(regex)
+#
+# This decorator function can be used to set the regex expression on a function
+# when its docstring might need to be set in an alternative way
+# -----------------------------------------------------------------------------
+
+def TOKEN(r):
+    def set_regex(f):
+        if hasattr(r, '__call__'):
+            f.regex = _get_regex(r)
+        else:
+            f.regex = r
+        return f
+    return set_regex
+
+# Alternative spelling of the TOKEN decorator
+Token = TOKEN
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/yacc.py b/venv/lib/python3.5/site-packages/pycparser/ply/yacc.py
new file mode 100644
index 0000000..03bd86e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/yacc.py
@@ -0,0 +1,3494 @@
+# -----------------------------------------------------------------------------
+# ply: yacc.py
+#
+# Copyright (C) 2001-2017
+# David M. Beazley (Dabeaz LLC)
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright notice,
+#   this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+# * Neither the name of the David Beazley or Dabeaz LLC may be used to
+#   endorse or promote products derived from this software without
+#  specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -----------------------------------------------------------------------------
+#
+# This implements an LR parser that is constructed from grammar rules defined
+# as Python functions. The grammer is specified by supplying the BNF inside
+# Python documentation strings.  The inspiration for this technique was borrowed
+# from John Aycock's Spark parsing system.  PLY might be viewed as cross between
+# Spark and the GNU bison utility.
+#
+# The current implementation is only somewhat object-oriented. The
+# LR parser itself is defined in terms of an object (which allows multiple
+# parsers to co-exist).  However, most of the variables used during table
+# construction are defined in terms of global variables.  Users shouldn't
+# notice unless they are trying to define multiple parsers at the same
+# time using threads (in which case they should have their head examined).
+#
+# This implementation supports both SLR and LALR(1) parsing.  LALR(1)
+# support was originally implemented by Elias Ioup (ezioup@alumni.uchicago.edu),
+# using the algorithm found in Aho, Sethi, and Ullman "Compilers: Principles,
+# Techniques, and Tools" (The Dragon Book).  LALR(1) has since been replaced
+# by the more efficient DeRemer and Pennello algorithm.
+#
+# :::::::: WARNING :::::::
+#
+# Construction of LR parsing tables is fairly complicated and expensive.
+# To make this module run fast, a *LOT* of work has been put into
+# optimization---often at the expensive of readability and what might
+# consider to be good Python "coding style."   Modify the code at your
+# own risk!
+# ----------------------------------------------------------------------------
+
+import re
+import types
+import sys
+import os.path
+import inspect
+import base64
+import warnings
+
+__version__    = '3.10'
+__tabversion__ = '3.10'
+
+#-----------------------------------------------------------------------------
+#                     === User configurable parameters ===
+#
+# Change these to modify the default behavior of yacc (if you wish)
+#-----------------------------------------------------------------------------
+
+yaccdebug   = True             # Debugging mode.  If set, yacc generates a
+                               # a 'parser.out' file in the current directory
+
+debug_file  = 'parser.out'     # Default name of the debugging file
+tab_module  = 'parsetab'       # Default name of the table module
+default_lr  = 'LALR'           # Default LR table generation method
+
+error_count = 3                # Number of symbols that must be shifted to leave recovery mode
+
+yaccdevel   = False            # Set to True if developing yacc.  This turns off optimized
+                               # implementations of certain functions.
+
+resultlimit = 40               # Size limit of results when running in debug mode.
+
+pickle_protocol = 0            # Protocol to use when writing pickle files
+
+# String type-checking compatibility
+if sys.version_info[0] < 3:
+    string_types = basestring
+else:
+    string_types = str
+
+MAXINT = sys.maxsize
+
+# This object is a stand-in for a logging object created by the
+# logging module.   PLY will use this by default to create things
+# such as the parser.out file.  If a user wants more detailed
+# information, they can create their own logging object and pass
+# it into PLY.
+
+class PlyLogger(object):
+    def __init__(self, f):
+        self.f = f
+
+    def debug(self, msg, *args, **kwargs):
+        self.f.write((msg % args) + '\n')
+
+    info = debug
+
+    def warning(self, msg, *args, **kwargs):
+        self.f.write('WARNING: ' + (msg % args) + '\n')
+
+    def error(self, msg, *args, **kwargs):
+        self.f.write('ERROR: ' + (msg % args) + '\n')
+
+    critical = debug
+
+# Null logger is used when no output is generated. Does nothing.
+class NullLogger(object):
+    def __getattribute__(self, name):
+        return self
+
+    def __call__(self, *args, **kwargs):
+        return self
+
+# Exception raised for yacc-related errors
+class YaccError(Exception):
+    pass
+
+# Format the result message that the parser produces when running in debug mode.
+def format_result(r):
+    repr_str = repr(r)
+    if '\n' in repr_str:
+        repr_str = repr(repr_str)
+    if len(repr_str) > resultlimit:
+        repr_str = repr_str[:resultlimit] + ' ...'
+    result = '<%s @ 0x%x> (%s)' % (type(r).__name__, id(r), repr_str)
+    return result
+
+# Format stack entries when the parser is running in debug mode
+def format_stack_entry(r):
+    repr_str = repr(r)
+    if '\n' in repr_str:
+        repr_str = repr(repr_str)
+    if len(repr_str) < 16:
+        return repr_str
+    else:
+        return '<%s @ 0x%x>' % (type(r).__name__, id(r))
+
+# Panic mode error recovery support.   This feature is being reworked--much of the
+# code here is to offer a deprecation/backwards compatible transition
+
+_errok = None
+_token = None
+_restart = None
+_warnmsg = '''PLY: Don't use global functions errok(), token(), and restart() in p_error().
+Instead, invoke the methods on the associated parser instance:
+
+    def p_error(p):
+        ...
+        # Use parser.errok(), parser.token(), parser.restart()
+        ...
+
+    parser = yacc.yacc()
+'''
+
+def errok():
+    warnings.warn(_warnmsg)
+    return _errok()
+
+def restart():
+    warnings.warn(_warnmsg)
+    return _restart()
+
+def token():
+    warnings.warn(_warnmsg)
+    return _token()
+
+# Utility function to call the p_error() function with some deprecation hacks
+def call_errorfunc(errorfunc, token, parser):
+    global _errok, _token, _restart
+    _errok = parser.errok
+    _token = parser.token
+    _restart = parser.restart
+    r = errorfunc(token)
+    try:
+        del _errok, _token, _restart
+    except NameError:
+        pass
+    return r
+
+#-----------------------------------------------------------------------------
+#                        ===  LR Parsing Engine ===
+#
+# The following classes are used for the LR parser itself.  These are not
+# used during table construction and are independent of the actual LR
+# table generation algorithm
+#-----------------------------------------------------------------------------
+
+# This class is used to hold non-terminal grammar symbols during parsing.
+# It normally has the following attributes set:
+#        .type       = Grammar symbol type
+#        .value      = Symbol value
+#        .lineno     = Starting line number
+#        .endlineno  = Ending line number (optional, set automatically)
+#        .lexpos     = Starting lex position
+#        .endlexpos  = Ending lex position (optional, set automatically)
+
+class YaccSymbol:
+    def __str__(self):
+        return self.type
+
+    def __repr__(self):
+        return str(self)
+
+# This class is a wrapper around the objects actually passed to each
+# grammar rule.   Index lookup and assignment actually assign the
+# .value attribute of the underlying YaccSymbol object.
+# The lineno() method returns the line number of a given
+# item (or 0 if not defined).   The linespan() method returns
+# a tuple of (startline,endline) representing the range of lines
+# for a symbol.  The lexspan() method returns a tuple (lexpos,endlexpos)
+# representing the range of positional information for a symbol.
+
+class YaccProduction:
+    def __init__(self, s, stack=None):
+        self.slice = s
+        self.stack = stack
+        self.lexer = None
+        self.parser = None
+
+    def __getitem__(self, n):
+        if isinstance(n, slice):
+            return [s.value for s in self.slice[n]]
+        elif n >= 0:
+            return self.slice[n].value
+        else:
+            return self.stack[n].value
+
+    def __setitem__(self, n, v):
+        self.slice[n].value = v
+
+    def __getslice__(self, i, j):
+        return [s.value for s in self.slice[i:j]]
+
+    def __len__(self):
+        return len(self.slice)
+
+    def lineno(self, n):
+        return getattr(self.slice[n], 'lineno', 0)
+
+    def set_lineno(self, n, lineno):
+        self.slice[n].lineno = lineno
+
+    def linespan(self, n):
+        startline = getattr(self.slice[n], 'lineno', 0)
+        endline = getattr(self.slice[n], 'endlineno', startline)
+        return startline, endline
+
+    def lexpos(self, n):
+        return getattr(self.slice[n], 'lexpos', 0)
+
+    def lexspan(self, n):
+        startpos = getattr(self.slice[n], 'lexpos', 0)
+        endpos = getattr(self.slice[n], 'endlexpos', startpos)
+        return startpos, endpos
+
+    def error(self):
+        raise SyntaxError
+
+# -----------------------------------------------------------------------------
+#                               == LRParser ==
+#
+# The LR Parsing engine.
+# -----------------------------------------------------------------------------
+
+class LRParser:
+    def __init__(self, lrtab, errorf):
+        self.productions = lrtab.lr_productions
+        self.action = lrtab.lr_action
+        self.goto = lrtab.lr_goto
+        self.errorfunc = errorf
+        self.set_defaulted_states()
+        self.errorok = True
+
+    def errok(self):
+        self.errorok = True
+
+    def restart(self):
+        del self.statestack[:]
+        del self.symstack[:]
+        sym = YaccSymbol()
+        sym.type = '$end'
+        self.symstack.append(sym)
+        self.statestack.append(0)
+
+    # Defaulted state support.
+    # This method identifies parser states where there is only one possible reduction action.
+    # For such states, the parser can make a choose to make a rule reduction without consuming
+    # the next look-ahead token.  This delayed invocation of the tokenizer can be useful in
+    # certain kinds of advanced parsing situations where the lexer and parser interact with
+    # each other or change states (i.e., manipulation of scope, lexer states, etc.).
+    #
+    # See:  http://www.gnu.org/software/bison/manual/html_node/Default-Reductions.html#Default-Reductions
+    def set_defaulted_states(self):
+        self.defaulted_states = {}
+        for state, actions in self.action.items():
+            rules = list(actions.values())
+            if len(rules) == 1 and rules[0] < 0:
+                self.defaulted_states[state] = rules[0]
+
+    def disable_defaulted_states(self):
+        self.defaulted_states = {}
+
+    def parse(self, input=None, lexer=None, debug=False, tracking=False, tokenfunc=None):
+        if debug or yaccdevel:
+            if isinstance(debug, int):
+                debug = PlyLogger(sys.stderr)
+            return self.parsedebug(input, lexer, debug, tracking, tokenfunc)
+        elif tracking:
+            return self.parseopt(input, lexer, debug, tracking, tokenfunc)
+        else:
+            return self.parseopt_notrack(input, lexer, debug, tracking, tokenfunc)
+
+
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+    # parsedebug().
+    #
+    # This is the debugging enabled version of parse().  All changes made to the
+    # parsing engine should be made here.   Optimized versions of this function
+    # are automatically created by the ply/ygen.py script.  This script cuts out
+    # sections enclosed in markers such as this:
+    #
+    #      #--! DEBUG
+    #      statements
+    #      #--! DEBUG
+    #
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+    def parsedebug(self, input=None, lexer=None, debug=False, tracking=False, tokenfunc=None):
+        #--! parsedebug-start
+        lookahead = None                         # Current lookahead symbol
+        lookaheadstack = []                      # Stack of lookahead symbols
+        actions = self.action                    # Local reference to action table (to avoid lookup on self.)
+        goto    = self.goto                      # Local reference to goto table (to avoid lookup on self.)
+        prod    = self.productions               # Local reference to production list (to avoid lookup on self.)
+        defaulted_states = self.defaulted_states # Local reference to defaulted states
+        pslice  = YaccProduction(None)           # Production object passed to grammar rules
+        errorcount = 0                           # Used during error recovery
+
+        #--! DEBUG
+        debug.info('PLY: PARSE DEBUG START')
+        #--! DEBUG
+
+        # If no lexer was given, we will try to use the lex module
+        if not lexer:
+            from . import lex
+            lexer = lex.lexer
+
+        # Set up the lexer and parser objects on pslice
+        pslice.lexer = lexer
+        pslice.parser = self
+
+        # If input was supplied, pass to lexer
+        if input is not None:
+            lexer.input(input)
+
+        if tokenfunc is None:
+            # Tokenize function
+            get_token = lexer.token
+        else:
+            get_token = tokenfunc
+
+        # Set the parser() token method (sometimes used in error recovery)
+        self.token = get_token
+
+        # Set up the state and symbol stacks
+
+        statestack = []                # Stack of parsing states
+        self.statestack = statestack
+        symstack   = []                # Stack of grammar symbols
+        self.symstack = symstack
+
+        pslice.stack = symstack         # Put in the production
+        errtoken   = None               # Err token
+
+        # The start state is assumed to be (0,$end)
+
+        statestack.append(0)
+        sym = YaccSymbol()
+        sym.type = '$end'
+        symstack.append(sym)
+        state = 0
+        while True:
+            # Get the next symbol on the input.  If a lookahead symbol
+            # is already set, we just use that. Otherwise, we'll pull
+            # the next token off of the lookaheadstack or from the lexer
+
+            #--! DEBUG
+            debug.debug('')
+            debug.debug('State  : %s', state)
+            #--! DEBUG
+
+            if state not in defaulted_states:
+                if not lookahead:
+                    if not lookaheadstack:
+                        lookahead = get_token()     # Get the next token
+                    else:
+                        lookahead = lookaheadstack.pop()
+                    if not lookahead:
+                        lookahead = YaccSymbol()
+                        lookahead.type = '$end'
+
+                # Check the action table
+                ltype = lookahead.type
+                t = actions[state].get(ltype)
+            else:
+                t = defaulted_states[state]
+                #--! DEBUG
+                debug.debug('Defaulted state %s: Reduce using %d', state, -t)
+                #--! DEBUG
+
+            #--! DEBUG
+            debug.debug('Stack  : %s',
+                        ('%s . %s' % (' '.join([xx.type for xx in symstack][1:]), str(lookahead))).lstrip())
+            #--! DEBUG
+
+            if t is not None:
+                if t > 0:
+                    # shift a symbol on the stack
+                    statestack.append(t)
+                    state = t
+
+                    #--! DEBUG
+                    debug.debug('Action : Shift and goto state %s', t)
+                    #--! DEBUG
+
+                    symstack.append(lookahead)
+                    lookahead = None
+
+                    # Decrease error count on successful shift
+                    if errorcount:
+                        errorcount -= 1
+                    continue
+
+                if t < 0:
+                    # reduce a symbol on the stack, emit a production
+                    p = prod[-t]
+                    pname = p.name
+                    plen  = p.len
+
+                    # Get production function
+                    sym = YaccSymbol()
+                    sym.type = pname       # Production name
+                    sym.value = None
+
+                    #--! DEBUG
+                    if plen:
+                        debug.info('Action : Reduce rule [%s] with %s and goto state %d', p.str,
+                                   '['+','.join([format_stack_entry(_v.value) for _v in symstack[-plen:]])+']',
+                                   goto[statestack[-1-plen]][pname])
+                    else:
+                        debug.info('Action : Reduce rule [%s] with %s and goto state %d', p.str, [],
+                                   goto[statestack[-1]][pname])
+
+                    #--! DEBUG
+
+                    if plen:
+                        targ = symstack[-plen-1:]
+                        targ[0] = sym
+
+                        #--! TRACKING
+                        if tracking:
+                            t1 = targ[1]
+                            sym.lineno = t1.lineno
+                            sym.lexpos = t1.lexpos
+                            t1 = targ[-1]
+                            sym.endlineno = getattr(t1, 'endlineno', t1.lineno)
+                            sym.endlexpos = getattr(t1, 'endlexpos', t1.lexpos)
+                        #--! TRACKING
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # below as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            del symstack[-plen:]
+                            self.state = state
+                            p.callable(pslice)
+                            del statestack[-plen:]
+                            #--! DEBUG
+                            debug.info('Result : %s', format_result(pslice[0]))
+                            #--! DEBUG
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            symstack.extend(targ[1:-1])         # Put the production slice back on the stack
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                    else:
+
+                        #--! TRACKING
+                        if tracking:
+                            sym.lineno = lexer.lineno
+                            sym.lexpos = lexer.lexpos
+                        #--! TRACKING
+
+                        targ = [sym]
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # above as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            self.state = state
+                            p.callable(pslice)
+                            #--! DEBUG
+                            debug.info('Result : %s', format_result(pslice[0]))
+                            #--! DEBUG
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                if t == 0:
+                    n = symstack[-1]
+                    result = getattr(n, 'value', None)
+                    #--! DEBUG
+                    debug.info('Done   : Returning %s', format_result(result))
+                    debug.info('PLY: PARSE DEBUG END')
+                    #--! DEBUG
+                    return result
+
+            if t is None:
+
+                #--! DEBUG
+                debug.error('Error  : %s',
+                            ('%s . %s' % (' '.join([xx.type for xx in symstack][1:]), str(lookahead))).lstrip())
+                #--! DEBUG
+
+                # We have some kind of parsing error here.  To handle
+                # this, we are going to push the current token onto
+                # the tokenstack and replace it with an 'error' token.
+                # If there are any synchronization rules, they may
+                # catch it.
+                #
+                # In addition to pushing the error token, we call call
+                # the user defined p_error() function if this is the
+                # first syntax error.  This function is only called if
+                # errorcount == 0.
+                if errorcount == 0 or self.errorok:
+                    errorcount = error_count
+                    self.errorok = False
+                    errtoken = lookahead
+                    if errtoken.type == '$end':
+                        errtoken = None               # End of file!
+                    if self.errorfunc:
+                        if errtoken and not hasattr(errtoken, 'lexer'):
+                            errtoken.lexer = lexer
+                        self.state = state
+                        tok = call_errorfunc(self.errorfunc, errtoken, self)
+                        if self.errorok:
+                            # User must have done some kind of panic
+                            # mode recovery on their own.  The
+                            # returned token is the next lookahead
+                            lookahead = tok
+                            errtoken = None
+                            continue
+                    else:
+                        if errtoken:
+                            if hasattr(errtoken, 'lineno'):
+                                lineno = lookahead.lineno
+                            else:
+                                lineno = 0
+                            if lineno:
+                                sys.stderr.write('yacc: Syntax error at line %d, token=%s\n' % (lineno, errtoken.type))
+                            else:
+                                sys.stderr.write('yacc: Syntax error, token=%s' % errtoken.type)
+                        else:
+                            sys.stderr.write('yacc: Parse error in input. EOF\n')
+                            return
+
+                else:
+                    errorcount = error_count
+
+                # case 1:  the statestack only has 1 entry on it.  If we're in this state, the
+                # entire parse has been rolled back and we're completely hosed.   The token is
+                # discarded and we just keep going.
+
+                if len(statestack) <= 1 and lookahead.type != '$end':
+                    lookahead = None
+                    errtoken = None
+                    state = 0
+                    # Nuke the pushback stack
+                    del lookaheadstack[:]
+                    continue
+
+                # case 2: the statestack has a couple of entries on it, but we're
+                # at the end of the file. nuke the top entry and generate an error token
+
+                # Start nuking entries on the stack
+                if lookahead.type == '$end':
+                    # Whoa. We're really hosed here. Bail out
+                    return
+
+                if lookahead.type != 'error':
+                    sym = symstack[-1]
+                    if sym.type == 'error':
+                        # Hmmm. Error is on top of stack, we'll just nuke input
+                        # symbol and continue
+                        #--! TRACKING
+                        if tracking:
+                            sym.endlineno = getattr(lookahead, 'lineno', sym.lineno)
+                            sym.endlexpos = getattr(lookahead, 'lexpos', sym.lexpos)
+                        #--! TRACKING
+                        lookahead = None
+                        continue
+
+                    # Create the error symbol for the first time and make it the new lookahead symbol
+                    t = YaccSymbol()
+                    t.type = 'error'
+
+                    if hasattr(lookahead, 'lineno'):
+                        t.lineno = t.endlineno = lookahead.lineno
+                    if hasattr(lookahead, 'lexpos'):
+                        t.lexpos = t.endlexpos = lookahead.lexpos
+                    t.value = lookahead
+                    lookaheadstack.append(lookahead)
+                    lookahead = t
+                else:
+                    sym = symstack.pop()
+                    #--! TRACKING
+                    if tracking:
+                        lookahead.lineno = sym.lineno
+                        lookahead.lexpos = sym.lexpos
+                    #--! TRACKING
+                    statestack.pop()
+                    state = statestack[-1]
+
+                continue
+
+            # Call an error function here
+            raise RuntimeError('yacc: internal parser error!!!\n')
+
+        #--! parsedebug-end
+
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+    # parseopt().
+    #
+    # Optimized version of parse() method.  DO NOT EDIT THIS CODE DIRECTLY!
+    # This code is automatically generated by the ply/ygen.py script. Make
+    # changes to the parsedebug() method instead.
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+    def parseopt(self, input=None, lexer=None, debug=False, tracking=False, tokenfunc=None):
+        #--! parseopt-start
+        lookahead = None                         # Current lookahead symbol
+        lookaheadstack = []                      # Stack of lookahead symbols
+        actions = self.action                    # Local reference to action table (to avoid lookup on self.)
+        goto    = self.goto                      # Local reference to goto table (to avoid lookup on self.)
+        prod    = self.productions               # Local reference to production list (to avoid lookup on self.)
+        defaulted_states = self.defaulted_states # Local reference to defaulted states
+        pslice  = YaccProduction(None)           # Production object passed to grammar rules
+        errorcount = 0                           # Used during error recovery
+
+
+        # If no lexer was given, we will try to use the lex module
+        if not lexer:
+            from . import lex
+            lexer = lex.lexer
+
+        # Set up the lexer and parser objects on pslice
+        pslice.lexer = lexer
+        pslice.parser = self
+
+        # If input was supplied, pass to lexer
+        if input is not None:
+            lexer.input(input)
+
+        if tokenfunc is None:
+            # Tokenize function
+            get_token = lexer.token
+        else:
+            get_token = tokenfunc
+
+        # Set the parser() token method (sometimes used in error recovery)
+        self.token = get_token
+
+        # Set up the state and symbol stacks
+
+        statestack = []                # Stack of parsing states
+        self.statestack = statestack
+        symstack   = []                # Stack of grammar symbols
+        self.symstack = symstack
+
+        pslice.stack = symstack         # Put in the production
+        errtoken   = None               # Err token
+
+        # The start state is assumed to be (0,$end)
+
+        statestack.append(0)
+        sym = YaccSymbol()
+        sym.type = '$end'
+        symstack.append(sym)
+        state = 0
+        while True:
+            # Get the next symbol on the input.  If a lookahead symbol
+            # is already set, we just use that. Otherwise, we'll pull
+            # the next token off of the lookaheadstack or from the lexer
+
+
+            if state not in defaulted_states:
+                if not lookahead:
+                    if not lookaheadstack:
+                        lookahead = get_token()     # Get the next token
+                    else:
+                        lookahead = lookaheadstack.pop()
+                    if not lookahead:
+                        lookahead = YaccSymbol()
+                        lookahead.type = '$end'
+
+                # Check the action table
+                ltype = lookahead.type
+                t = actions[state].get(ltype)
+            else:
+                t = defaulted_states[state]
+
+
+            if t is not None:
+                if t > 0:
+                    # shift a symbol on the stack
+                    statestack.append(t)
+                    state = t
+
+
+                    symstack.append(lookahead)
+                    lookahead = None
+
+                    # Decrease error count on successful shift
+                    if errorcount:
+                        errorcount -= 1
+                    continue
+
+                if t < 0:
+                    # reduce a symbol on the stack, emit a production
+                    p = prod[-t]
+                    pname = p.name
+                    plen  = p.len
+
+                    # Get production function
+                    sym = YaccSymbol()
+                    sym.type = pname       # Production name
+                    sym.value = None
+
+
+                    if plen:
+                        targ = symstack[-plen-1:]
+                        targ[0] = sym
+
+                        #--! TRACKING
+                        if tracking:
+                            t1 = targ[1]
+                            sym.lineno = t1.lineno
+                            sym.lexpos = t1.lexpos
+                            t1 = targ[-1]
+                            sym.endlineno = getattr(t1, 'endlineno', t1.lineno)
+                            sym.endlexpos = getattr(t1, 'endlexpos', t1.lexpos)
+                        #--! TRACKING
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # below as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            del symstack[-plen:]
+                            self.state = state
+                            p.callable(pslice)
+                            del statestack[-plen:]
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            symstack.extend(targ[1:-1])         # Put the production slice back on the stack
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                    else:
+
+                        #--! TRACKING
+                        if tracking:
+                            sym.lineno = lexer.lineno
+                            sym.lexpos = lexer.lexpos
+                        #--! TRACKING
+
+                        targ = [sym]
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # above as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            self.state = state
+                            p.callable(pslice)
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                if t == 0:
+                    n = symstack[-1]
+                    result = getattr(n, 'value', None)
+                    return result
+
+            if t is None:
+
+
+                # We have some kind of parsing error here.  To handle
+                # this, we are going to push the current token onto
+                # the tokenstack and replace it with an 'error' token.
+                # If there are any synchronization rules, they may
+                # catch it.
+                #
+                # In addition to pushing the error token, we call call
+                # the user defined p_error() function if this is the
+                # first syntax error.  This function is only called if
+                # errorcount == 0.
+                if errorcount == 0 or self.errorok:
+                    errorcount = error_count
+                    self.errorok = False
+                    errtoken = lookahead
+                    if errtoken.type == '$end':
+                        errtoken = None               # End of file!
+                    if self.errorfunc:
+                        if errtoken and not hasattr(errtoken, 'lexer'):
+                            errtoken.lexer = lexer
+                        self.state = state
+                        tok = call_errorfunc(self.errorfunc, errtoken, self)
+                        if self.errorok:
+                            # User must have done some kind of panic
+                            # mode recovery on their own.  The
+                            # returned token is the next lookahead
+                            lookahead = tok
+                            errtoken = None
+                            continue
+                    else:
+                        if errtoken:
+                            if hasattr(errtoken, 'lineno'):
+                                lineno = lookahead.lineno
+                            else:
+                                lineno = 0
+                            if lineno:
+                                sys.stderr.write('yacc: Syntax error at line %d, token=%s\n' % (lineno, errtoken.type))
+                            else:
+                                sys.stderr.write('yacc: Syntax error, token=%s' % errtoken.type)
+                        else:
+                            sys.stderr.write('yacc: Parse error in input. EOF\n')
+                            return
+
+                else:
+                    errorcount = error_count
+
+                # case 1:  the statestack only has 1 entry on it.  If we're in this state, the
+                # entire parse has been rolled back and we're completely hosed.   The token is
+                # discarded and we just keep going.
+
+                if len(statestack) <= 1 and lookahead.type != '$end':
+                    lookahead = None
+                    errtoken = None
+                    state = 0
+                    # Nuke the pushback stack
+                    del lookaheadstack[:]
+                    continue
+
+                # case 2: the statestack has a couple of entries on it, but we're
+                # at the end of the file. nuke the top entry and generate an error token
+
+                # Start nuking entries on the stack
+                if lookahead.type == '$end':
+                    # Whoa. We're really hosed here. Bail out
+                    return
+
+                if lookahead.type != 'error':
+                    sym = symstack[-1]
+                    if sym.type == 'error':
+                        # Hmmm. Error is on top of stack, we'll just nuke input
+                        # symbol and continue
+                        #--! TRACKING
+                        if tracking:
+                            sym.endlineno = getattr(lookahead, 'lineno', sym.lineno)
+                            sym.endlexpos = getattr(lookahead, 'lexpos', sym.lexpos)
+                        #--! TRACKING
+                        lookahead = None
+                        continue
+
+                    # Create the error symbol for the first time and make it the new lookahead symbol
+                    t = YaccSymbol()
+                    t.type = 'error'
+
+                    if hasattr(lookahead, 'lineno'):
+                        t.lineno = t.endlineno = lookahead.lineno
+                    if hasattr(lookahead, 'lexpos'):
+                        t.lexpos = t.endlexpos = lookahead.lexpos
+                    t.value = lookahead
+                    lookaheadstack.append(lookahead)
+                    lookahead = t
+                else:
+                    sym = symstack.pop()
+                    #--! TRACKING
+                    if tracking:
+                        lookahead.lineno = sym.lineno
+                        lookahead.lexpos = sym.lexpos
+                    #--! TRACKING
+                    statestack.pop()
+                    state = statestack[-1]
+
+                continue
+
+            # Call an error function here
+            raise RuntimeError('yacc: internal parser error!!!\n')
+
+        #--! parseopt-end
+
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+    # parseopt_notrack().
+    #
+    # Optimized version of parseopt() with line number tracking removed.
+    # DO NOT EDIT THIS CODE DIRECTLY. This code is automatically generated
+    # by the ply/ygen.py script. Make changes to the parsedebug() method instead.
+    # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+    def parseopt_notrack(self, input=None, lexer=None, debug=False, tracking=False, tokenfunc=None):
+        #--! parseopt-notrack-start
+        lookahead = None                         # Current lookahead symbol
+        lookaheadstack = []                      # Stack of lookahead symbols
+        actions = self.action                    # Local reference to action table (to avoid lookup on self.)
+        goto    = self.goto                      # Local reference to goto table (to avoid lookup on self.)
+        prod    = self.productions               # Local reference to production list (to avoid lookup on self.)
+        defaulted_states = self.defaulted_states # Local reference to defaulted states
+        pslice  = YaccProduction(None)           # Production object passed to grammar rules
+        errorcount = 0                           # Used during error recovery
+
+
+        # If no lexer was given, we will try to use the lex module
+        if not lexer:
+            from . import lex
+            lexer = lex.lexer
+
+        # Set up the lexer and parser objects on pslice
+        pslice.lexer = lexer
+        pslice.parser = self
+
+        # If input was supplied, pass to lexer
+        if input is not None:
+            lexer.input(input)
+
+        if tokenfunc is None:
+            # Tokenize function
+            get_token = lexer.token
+        else:
+            get_token = tokenfunc
+
+        # Set the parser() token method (sometimes used in error recovery)
+        self.token = get_token
+
+        # Set up the state and symbol stacks
+
+        statestack = []                # Stack of parsing states
+        self.statestack = statestack
+        symstack   = []                # Stack of grammar symbols
+        self.symstack = symstack
+
+        pslice.stack = symstack         # Put in the production
+        errtoken   = None               # Err token
+
+        # The start state is assumed to be (0,$end)
+
+        statestack.append(0)
+        sym = YaccSymbol()
+        sym.type = '$end'
+        symstack.append(sym)
+        state = 0
+        while True:
+            # Get the next symbol on the input.  If a lookahead symbol
+            # is already set, we just use that. Otherwise, we'll pull
+            # the next token off of the lookaheadstack or from the lexer
+
+
+            if state not in defaulted_states:
+                if not lookahead:
+                    if not lookaheadstack:
+                        lookahead = get_token()     # Get the next token
+                    else:
+                        lookahead = lookaheadstack.pop()
+                    if not lookahead:
+                        lookahead = YaccSymbol()
+                        lookahead.type = '$end'
+
+                # Check the action table
+                ltype = lookahead.type
+                t = actions[state].get(ltype)
+            else:
+                t = defaulted_states[state]
+
+
+            if t is not None:
+                if t > 0:
+                    # shift a symbol on the stack
+                    statestack.append(t)
+                    state = t
+
+
+                    symstack.append(lookahead)
+                    lookahead = None
+
+                    # Decrease error count on successful shift
+                    if errorcount:
+                        errorcount -= 1
+                    continue
+
+                if t < 0:
+                    # reduce a symbol on the stack, emit a production
+                    p = prod[-t]
+                    pname = p.name
+                    plen  = p.len
+
+                    # Get production function
+                    sym = YaccSymbol()
+                    sym.type = pname       # Production name
+                    sym.value = None
+
+
+                    if plen:
+                        targ = symstack[-plen-1:]
+                        targ[0] = sym
+
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # below as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            del symstack[-plen:]
+                            self.state = state
+                            p.callable(pslice)
+                            del statestack[-plen:]
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            symstack.extend(targ[1:-1])         # Put the production slice back on the stack
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                    else:
+
+
+                        targ = [sym]
+
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+                        # The code enclosed in this section is duplicated
+                        # above as a performance optimization.  Make sure
+                        # changes get made in both locations.
+
+                        pslice.slice = targ
+
+                        try:
+                            # Call the grammar rule with our special slice object
+                            self.state = state
+                            p.callable(pslice)
+                            symstack.append(sym)
+                            state = goto[statestack[-1]][pname]
+                            statestack.append(state)
+                        except SyntaxError:
+                            # If an error was set. Enter error recovery state
+                            lookaheadstack.append(lookahead)    # Save the current lookahead token
+                            statestack.pop()                    # Pop back one state (before the reduce)
+                            state = statestack[-1]
+                            sym.type = 'error'
+                            sym.value = 'error'
+                            lookahead = sym
+                            errorcount = error_count
+                            self.errorok = False
+
+                        continue
+                        # !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+                if t == 0:
+                    n = symstack[-1]
+                    result = getattr(n, 'value', None)
+                    return result
+
+            if t is None:
+
+
+                # We have some kind of parsing error here.  To handle
+                # this, we are going to push the current token onto
+                # the tokenstack and replace it with an 'error' token.
+                # If there are any synchronization rules, they may
+                # catch it.
+                #
+                # In addition to pushing the error token, we call call
+                # the user defined p_error() function if this is the
+                # first syntax error.  This function is only called if
+                # errorcount == 0.
+                if errorcount == 0 or self.errorok:
+                    errorcount = error_count
+                    self.errorok = False
+                    errtoken = lookahead
+                    if errtoken.type == '$end':
+                        errtoken = None               # End of file!
+                    if self.errorfunc:
+                        if errtoken and not hasattr(errtoken, 'lexer'):
+                            errtoken.lexer = lexer
+                        self.state = state
+                        tok = call_errorfunc(self.errorfunc, errtoken, self)
+                        if self.errorok:
+                            # User must have done some kind of panic
+                            # mode recovery on their own.  The
+                            # returned token is the next lookahead
+                            lookahead = tok
+                            errtoken = None
+                            continue
+                    else:
+                        if errtoken:
+                            if hasattr(errtoken, 'lineno'):
+                                lineno = lookahead.lineno
+                            else:
+                                lineno = 0
+                            if lineno:
+                                sys.stderr.write('yacc: Syntax error at line %d, token=%s\n' % (lineno, errtoken.type))
+                            else:
+                                sys.stderr.write('yacc: Syntax error, token=%s' % errtoken.type)
+                        else:
+                            sys.stderr.write('yacc: Parse error in input. EOF\n')
+                            return
+
+                else:
+                    errorcount = error_count
+
+                # case 1:  the statestack only has 1 entry on it.  If we're in this state, the
+                # entire parse has been rolled back and we're completely hosed.   The token is
+                # discarded and we just keep going.
+
+                if len(statestack) <= 1 and lookahead.type != '$end':
+                    lookahead = None
+                    errtoken = None
+                    state = 0
+                    # Nuke the pushback stack
+                    del lookaheadstack[:]
+                    continue
+
+                # case 2: the statestack has a couple of entries on it, but we're
+                # at the end of the file. nuke the top entry and generate an error token
+
+                # Start nuking entries on the stack
+                if lookahead.type == '$end':
+                    # Whoa. We're really hosed here. Bail out
+                    return
+
+                if lookahead.type != 'error':
+                    sym = symstack[-1]
+                    if sym.type == 'error':
+                        # Hmmm. Error is on top of stack, we'll just nuke input
+                        # symbol and continue
+                        lookahead = None
+                        continue
+
+                    # Create the error symbol for the first time and make it the new lookahead symbol
+                    t = YaccSymbol()
+                    t.type = 'error'
+
+                    if hasattr(lookahead, 'lineno'):
+                        t.lineno = t.endlineno = lookahead.lineno
+                    if hasattr(lookahead, 'lexpos'):
+                        t.lexpos = t.endlexpos = lookahead.lexpos
+                    t.value = lookahead
+                    lookaheadstack.append(lookahead)
+                    lookahead = t
+                else:
+                    sym = symstack.pop()
+                    statestack.pop()
+                    state = statestack[-1]
+
+                continue
+
+            # Call an error function here
+            raise RuntimeError('yacc: internal parser error!!!\n')
+
+        #--! parseopt-notrack-end
+
+# -----------------------------------------------------------------------------
+#                          === Grammar Representation ===
+#
+# The following functions, classes, and variables are used to represent and
+# manipulate the rules that make up a grammar.
+# -----------------------------------------------------------------------------
+
+# regex matching identifiers
+_is_identifier = re.compile(r'^[a-zA-Z0-9_-]+$')
+
+# -----------------------------------------------------------------------------
+# class Production:
+#
+# This class stores the raw information about a single production or grammar rule.
+# A grammar rule refers to a specification such as this:
+#
+#       expr : expr PLUS term
+#
+# Here are the basic attributes defined on all productions
+#
+#       name     - Name of the production.  For example 'expr'
+#       prod     - A list of symbols on the right side ['expr','PLUS','term']
+#       prec     - Production precedence level
+#       number   - Production number.
+#       func     - Function that executes on reduce
+#       file     - File where production function is defined
+#       lineno   - Line number where production function is defined
+#
+# The following attributes are defined or optional.
+#
+#       len       - Length of the production (number of symbols on right hand side)
+#       usyms     - Set of unique symbols found in the production
+# -----------------------------------------------------------------------------
+
+class Production(object):
+    reduced = 0
+    def __init__(self, number, name, prod, precedence=('right', 0), func=None, file='', line=0):
+        self.name     = name
+        self.prod     = tuple(prod)
+        self.number   = number
+        self.func     = func
+        self.callable = None
+        self.file     = file
+        self.line     = line
+        self.prec     = precedence
+
+        # Internal settings used during table construction
+
+        self.len  = len(self.prod)   # Length of the production
+
+        # Create a list of unique production symbols used in the production
+        self.usyms = []
+        for s in self.prod:
+            if s not in self.usyms:
+                self.usyms.append(s)
+
+        # List of all LR items for the production
+        self.lr_items = []
+        self.lr_next = None
+
+        # Create a string representation
+        if self.prod:
+            self.str = '%s -> %s' % (self.name, ' '.join(self.prod))
+        else:
+            self.str = '%s -> <empty>' % self.name
+
+    def __str__(self):
+        return self.str
+
+    def __repr__(self):
+        return 'Production(' + str(self) + ')'
+
+    def __len__(self):
+        return len(self.prod)
+
+    def __nonzero__(self):
+        return 1
+
+    def __getitem__(self, index):
+        return self.prod[index]
+
+    # Return the nth lr_item from the production (or None if at the end)
+    def lr_item(self, n):
+        if n > len(self.prod):
+            return None
+        p = LRItem(self, n)
+        # Precompute the list of productions immediately following.
+        try:
+            p.lr_after = Prodnames[p.prod[n+1]]
+        except (IndexError, KeyError):
+            p.lr_after = []
+        try:
+            p.lr_before = p.prod[n-1]
+        except IndexError:
+            p.lr_before = None
+        return p
+
+    # Bind the production function name to a callable
+    def bind(self, pdict):
+        if self.func:
+            self.callable = pdict[self.func]
+
+# This class serves as a minimal standin for Production objects when
+# reading table data from files.   It only contains information
+# actually used by the LR parsing engine, plus some additional
+# debugging information.
+class MiniProduction(object):
+    def __init__(self, str, name, len, func, file, line):
+        self.name     = name
+        self.len      = len
+        self.func     = func
+        self.callable = None
+        self.file     = file
+        self.line     = line
+        self.str      = str
+
+    def __str__(self):
+        return self.str
+
+    def __repr__(self):
+        return 'MiniProduction(%s)' % self.str
+
+    # Bind the production function name to a callable
+    def bind(self, pdict):
+        if self.func:
+            self.callable = pdict[self.func]
+
+
+# -----------------------------------------------------------------------------
+# class LRItem
+#
+# This class represents a specific stage of parsing a production rule.  For
+# example:
+#
+#       expr : expr . PLUS term
+#
+# In the above, the "." represents the current location of the parse.  Here
+# basic attributes:
+#
+#       name       - Name of the production.  For example 'expr'
+#       prod       - A list of symbols on the right side ['expr','.', 'PLUS','term']
+#       number     - Production number.
+#
+#       lr_next      Next LR item. Example, if we are ' expr -> expr . PLUS term'
+#                    then lr_next refers to 'expr -> expr PLUS . term'
+#       lr_index   - LR item index (location of the ".") in the prod list.
+#       lookaheads - LALR lookahead symbols for this item
+#       len        - Length of the production (number of symbols on right hand side)
+#       lr_after    - List of all productions that immediately follow
+#       lr_before   - Grammar symbol immediately before
+# -----------------------------------------------------------------------------
+
+class LRItem(object):
+    def __init__(self, p, n):
+        self.name       = p.name
+        self.prod       = list(p.prod)
+        self.number     = p.number
+        self.lr_index   = n
+        self.lookaheads = {}
+        self.prod.insert(n, '.')
+        self.prod       = tuple(self.prod)
+        self.len        = len(self.prod)
+        self.usyms      = p.usyms
+
+    def __str__(self):
+        if self.prod:
+            s = '%s -> %s' % (self.name, ' '.join(self.prod))
+        else:
+            s = '%s -> <empty>' % self.name
+        return s
+
+    def __repr__(self):
+        return 'LRItem(' + str(self) + ')'
+
+# -----------------------------------------------------------------------------
+# rightmost_terminal()
+#
+# Return the rightmost terminal from a list of symbols.  Used in add_production()
+# -----------------------------------------------------------------------------
+def rightmost_terminal(symbols, terminals):
+    i = len(symbols) - 1
+    while i >= 0:
+        if symbols[i] in terminals:
+            return symbols[i]
+        i -= 1
+    return None
+
+# -----------------------------------------------------------------------------
+#                           === GRAMMAR CLASS ===
+#
+# The following class represents the contents of the specified grammar along
+# with various computed properties such as first sets, follow sets, LR items, etc.
+# This data is used for critical parts of the table generation process later.
+# -----------------------------------------------------------------------------
+
+class GrammarError(YaccError):
+    pass
+
+class Grammar(object):
+    def __init__(self, terminals):
+        self.Productions  = [None]  # A list of all of the productions.  The first
+                                    # entry is always reserved for the purpose of
+                                    # building an augmented grammar
+
+        self.Prodnames    = {}      # A dictionary mapping the names of nonterminals to a list of all
+                                    # productions of that nonterminal.
+
+        self.Prodmap      = {}      # A dictionary that is only used to detect duplicate
+                                    # productions.
+
+        self.Terminals    = {}      # A dictionary mapping the names of terminal symbols to a
+                                    # list of the rules where they are used.
+
+        for term in terminals:
+            self.Terminals[term] = []
+
+        self.Terminals['error'] = []
+
+        self.Nonterminals = {}      # A dictionary mapping names of nonterminals to a list
+                                    # of rule numbers where they are used.
+
+        self.First        = {}      # A dictionary of precomputed FIRST(x) symbols
+
+        self.Follow       = {}      # A dictionary of precomputed FOLLOW(x) symbols
+
+        self.Precedence   = {}      # Precedence rules for each terminal. Contains tuples of the
+                                    # form ('right',level) or ('nonassoc', level) or ('left',level)
+
+        self.UsedPrecedence = set() # Precedence rules that were actually used by the grammer.
+                                    # This is only used to provide error checking and to generate
+                                    # a warning about unused precedence rules.
+
+        self.Start = None           # Starting symbol for the grammar
+
+
+    def __len__(self):
+        return len(self.Productions)
+
+    def __getitem__(self, index):
+        return self.Productions[index]
+
+    # -----------------------------------------------------------------------------
+    # set_precedence()
+    #
+    # Sets the precedence for a given terminal. assoc is the associativity such as
+    # 'left','right', or 'nonassoc'.  level is a numeric level.
+    #
+    # -----------------------------------------------------------------------------
+
+    def set_precedence(self, term, assoc, level):
+        assert self.Productions == [None], 'Must call set_precedence() before add_production()'
+        if term in self.Precedence:
+            raise GrammarError('Precedence already specified for terminal %r' % term)
+        if assoc not in ['left', 'right', 'nonassoc']:
+            raise GrammarError("Associativity must be one of 'left','right', or 'nonassoc'")
+        self.Precedence[term] = (assoc, level)
+
+    # -----------------------------------------------------------------------------
+    # add_production()
+    #
+    # Given an action function, this function assembles a production rule and
+    # computes its precedence level.
+    #
+    # The production rule is supplied as a list of symbols.   For example,
+    # a rule such as 'expr : expr PLUS term' has a production name of 'expr' and
+    # symbols ['expr','PLUS','term'].
+    #
+    # Precedence is determined by the precedence of the right-most non-terminal
+    # or the precedence of a terminal specified by %prec.
+    #
+    # A variety of error checks are performed to make sure production symbols
+    # are valid and that %prec is used correctly.
+    # -----------------------------------------------------------------------------
+
+    def add_production(self, prodname, syms, func=None, file='', line=0):
+
+        if prodname in self.Terminals:
+            raise GrammarError('%s:%d: Illegal rule name %r. Already defined as a token' % (file, line, prodname))
+        if prodname == 'error':
+            raise GrammarError('%s:%d: Illegal rule name %r. error is a reserved word' % (file, line, prodname))
+        if not _is_identifier.match(prodname):
+            raise GrammarError('%s:%d: Illegal rule name %r' % (file, line, prodname))
+
+        # Look for literal tokens
+        for n, s in enumerate(syms):
+            if s[0] in "'\"":
+                try:
+                    c = eval(s)
+                    if (len(c) > 1):
+                        raise GrammarError('%s:%d: Literal token %s in rule %r may only be a single character' %
+                                           (file, line, s, prodname))
+                    if c not in self.Terminals:
+                        self.Terminals[c] = []
+                    syms[n] = c
+                    continue
+                except SyntaxError:
+                    pass
+            if not _is_identifier.match(s) and s != '%prec':
+                raise GrammarError('%s:%d: Illegal name %r in rule %r' % (file, line, s, prodname))
+
+        # Determine the precedence level
+        if '%prec' in syms:
+            if syms[-1] == '%prec':
+                raise GrammarError('%s:%d: Syntax error. Nothing follows %%prec' % (file, line))
+            if syms[-2] != '%prec':
+                raise GrammarError('%s:%d: Syntax error. %%prec can only appear at the end of a grammar rule' %
+                                   (file, line))
+            precname = syms[-1]
+            prodprec = self.Precedence.get(precname)
+            if not prodprec:
+                raise GrammarError('%s:%d: Nothing known about the precedence of %r' % (file, line, precname))
+            else:
+                self.UsedPrecedence.add(precname)
+            del syms[-2:]     # Drop %prec from the rule
+        else:
+            # If no %prec, precedence is determined by the rightmost terminal symbol
+            precname = rightmost_terminal(syms, self.Terminals)
+            prodprec = self.Precedence.get(precname, ('right', 0))
+
+        # See if the rule is already in the rulemap
+        map = '%s -> %s' % (prodname, syms)
+        if map in self.Prodmap:
+            m = self.Prodmap[map]
+            raise GrammarError('%s:%d: Duplicate rule %s. ' % (file, line, m) +
+                               'Previous definition at %s:%d' % (m.file, m.line))
+
+        # From this point on, everything is valid.  Create a new Production instance
+        pnumber  = len(self.Productions)
+        if prodname not in self.Nonterminals:
+            self.Nonterminals[prodname] = []
+
+        # Add the production number to Terminals and Nonterminals
+        for t in syms:
+            if t in self.Terminals:
+                self.Terminals[t].append(pnumber)
+            else:
+                if t not in self.Nonterminals:
+                    self.Nonterminals[t] = []
+                self.Nonterminals[t].append(pnumber)
+
+        # Create a production and add it to the list of productions
+        p = Production(pnumber, prodname, syms, prodprec, func, file, line)
+        self.Productions.append(p)
+        self.Prodmap[map] = p
+
+        # Add to the global productions list
+        try:
+            self.Prodnames[prodname].append(p)
+        except KeyError:
+            self.Prodnames[prodname] = [p]
+
+    # -----------------------------------------------------------------------------
+    # set_start()
+    #
+    # Sets the starting symbol and creates the augmented grammar.  Production
+    # rule 0 is S' -> start where start is the start symbol.
+    # -----------------------------------------------------------------------------
+
+    def set_start(self, start=None):
+        if not start:
+            start = self.Productions[1].name
+        if start not in self.Nonterminals:
+            raise GrammarError('start symbol %s undefined' % start)
+        self.Productions[0] = Production(0, "S'", [start])
+        self.Nonterminals[start].append(0)
+        self.Start = start
+
+    # -----------------------------------------------------------------------------
+    # find_unreachable()
+    #
+    # Find all of the nonterminal symbols that can't be reached from the starting
+    # symbol.  Returns a list of nonterminals that can't be reached.
+    # -----------------------------------------------------------------------------
+
+    def find_unreachable(self):
+
+        # Mark all symbols that are reachable from a symbol s
+        def mark_reachable_from(s):
+            if s in reachable:
+                return
+            reachable.add(s)
+            for p in self.Prodnames.get(s, []):
+                for r in p.prod:
+                    mark_reachable_from(r)
+
+        reachable = set()
+        mark_reachable_from(self.Productions[0].prod[0])
+        return [s for s in self.Nonterminals if s not in reachable]
+
+    # -----------------------------------------------------------------------------
+    # infinite_cycles()
+    #
+    # This function looks at the various parsing rules and tries to detect
+    # infinite recursion cycles (grammar rules where there is no possible way
+    # to derive a string of only terminals).
+    # -----------------------------------------------------------------------------
+
+    def infinite_cycles(self):
+        terminates = {}
+
+        # Terminals:
+        for t in self.Terminals:
+            terminates[t] = True
+
+        terminates['$end'] = True
+
+        # Nonterminals:
+
+        # Initialize to false:
+        for n in self.Nonterminals:
+            terminates[n] = False
+
+        # Then propagate termination until no change:
+        while True:
+            some_change = False
+            for (n, pl) in self.Prodnames.items():
+                # Nonterminal n terminates iff any of its productions terminates.
+                for p in pl:
+                    # Production p terminates iff all of its rhs symbols terminate.
+                    for s in p.prod:
+                        if not terminates[s]:
+                            # The symbol s does not terminate,
+                            # so production p does not terminate.
+                            p_terminates = False
+                            break
+                    else:
+                        # didn't break from the loop,
+                        # so every symbol s terminates
+                        # so production p terminates.
+                        p_terminates = True
+
+                    if p_terminates:
+                        # symbol n terminates!
+                        if not terminates[n]:
+                            terminates[n] = True
+                            some_change = True
+                        # Don't need to consider any more productions for this n.
+                        break
+
+            if not some_change:
+                break
+
+        infinite = []
+        for (s, term) in terminates.items():
+            if not term:
+                if s not in self.Prodnames and s not in self.Terminals and s != 'error':
+                    # s is used-but-not-defined, and we've already warned of that,
+                    # so it would be overkill to say that it's also non-terminating.
+                    pass
+                else:
+                    infinite.append(s)
+
+        return infinite
+
+    # -----------------------------------------------------------------------------
+    # undefined_symbols()
+    #
+    # Find all symbols that were used the grammar, but not defined as tokens or
+    # grammar rules.  Returns a list of tuples (sym, prod) where sym in the symbol
+    # and prod is the production where the symbol was used.
+    # -----------------------------------------------------------------------------
+    def undefined_symbols(self):
+        result = []
+        for p in self.Productions:
+            if not p:
+                continue
+
+            for s in p.prod:
+                if s not in self.Prodnames and s not in self.Terminals and s != 'error':
+                    result.append((s, p))
+        return result
+
+    # -----------------------------------------------------------------------------
+    # unused_terminals()
+    #
+    # Find all terminals that were defined, but not used by the grammar.  Returns
+    # a list of all symbols.
+    # -----------------------------------------------------------------------------
+    def unused_terminals(self):
+        unused_tok = []
+        for s, v in self.Terminals.items():
+            if s != 'error' and not v:
+                unused_tok.append(s)
+
+        return unused_tok
+
+    # ------------------------------------------------------------------------------
+    # unused_rules()
+    #
+    # Find all grammar rules that were defined,  but not used (maybe not reachable)
+    # Returns a list of productions.
+    # ------------------------------------------------------------------------------
+
+    def unused_rules(self):
+        unused_prod = []
+        for s, v in self.Nonterminals.items():
+            if not v:
+                p = self.Prodnames[s][0]
+                unused_prod.append(p)
+        return unused_prod
+
+    # -----------------------------------------------------------------------------
+    # unused_precedence()
+    #
+    # Returns a list of tuples (term,precedence) corresponding to precedence
+    # rules that were never used by the grammar.  term is the name of the terminal
+    # on which precedence was applied and precedence is a string such as 'left' or
+    # 'right' corresponding to the type of precedence.
+    # -----------------------------------------------------------------------------
+
+    def unused_precedence(self):
+        unused = []
+        for termname in self.Precedence:
+            if not (termname in self.Terminals or termname in self.UsedPrecedence):
+                unused.append((termname, self.Precedence[termname][0]))
+
+        return unused
+
+    # -------------------------------------------------------------------------
+    # _first()
+    #
+    # Compute the value of FIRST1(beta) where beta is a tuple of symbols.
+    #
+    # During execution of compute_first1, the result may be incomplete.
+    # Afterward (e.g., when called from compute_follow()), it will be complete.
+    # -------------------------------------------------------------------------
+    def _first(self, beta):
+
+        # We are computing First(x1,x2,x3,...,xn)
+        result = []
+        for x in beta:
+            x_produces_empty = False
+
+            # Add all the non-<empty> symbols of First[x] to the result.
+            for f in self.First[x]:
+                if f == '<empty>':
+                    x_produces_empty = True
+                else:
+                    if f not in result:
+                        result.append(f)
+
+            if x_produces_empty:
+                # We have to consider the next x in beta,
+                # i.e. stay in the loop.
+                pass
+            else:
+                # We don't have to consider any further symbols in beta.
+                break
+        else:
+            # There was no 'break' from the loop,
+            # so x_produces_empty was true for all x in beta,
+            # so beta produces empty as well.
+            result.append('<empty>')
+
+        return result
+
+    # -------------------------------------------------------------------------
+    # compute_first()
+    #
+    # Compute the value of FIRST1(X) for all symbols
+    # -------------------------------------------------------------------------
+    def compute_first(self):
+        if self.First:
+            return self.First
+
+        # Terminals:
+        for t in self.Terminals:
+            self.First[t] = [t]
+
+        self.First['$end'] = ['$end']
+
+        # Nonterminals:
+
+        # Initialize to the empty set:
+        for n in self.Nonterminals:
+            self.First[n] = []
+
+        # Then propagate symbols until no change:
+        while True:
+            some_change = False
+            for n in self.Nonterminals:
+                for p in self.Prodnames[n]:
+                    for f in self._first(p.prod):
+                        if f not in self.First[n]:
+                            self.First[n].append(f)
+                            some_change = True
+            if not some_change:
+                break
+
+        return self.First
+
+    # ---------------------------------------------------------------------
+    # compute_follow()
+    #
+    # Computes all of the follow sets for every non-terminal symbol.  The
+    # follow set is the set of all symbols that might follow a given
+    # non-terminal.  See the Dragon book, 2nd Ed. p. 189.
+    # ---------------------------------------------------------------------
+    def compute_follow(self, start=None):
+        # If already computed, return the result
+        if self.Follow:
+            return self.Follow
+
+        # If first sets not computed yet, do that first.
+        if not self.First:
+            self.compute_first()
+
+        # Add '$end' to the follow list of the start symbol
+        for k in self.Nonterminals:
+            self.Follow[k] = []
+
+        if not start:
+            start = self.Productions[1].name
+
+        self.Follow[start] = ['$end']
+
+        while True:
+            didadd = False
+            for p in self.Productions[1:]:
+                # Here is the production set
+                for i, B in enumerate(p.prod):
+                    if B in self.Nonterminals:
+                        # Okay. We got a non-terminal in a production
+                        fst = self._first(p.prod[i+1:])
+                        hasempty = False
+                        for f in fst:
+                            if f != '<empty>' and f not in self.Follow[B]:
+                                self.Follow[B].append(f)
+                                didadd = True
+                            if f == '<empty>':
+                                hasempty = True
+                        if hasempty or i == (len(p.prod)-1):
+                            # Add elements of follow(a) to follow(b)
+                            for f in self.Follow[p.name]:
+                                if f not in self.Follow[B]:
+                                    self.Follow[B].append(f)
+                                    didadd = True
+            if not didadd:
+                break
+        return self.Follow
+
+
+    # -----------------------------------------------------------------------------
+    # build_lritems()
+    #
+    # This function walks the list of productions and builds a complete set of the
+    # LR items.  The LR items are stored in two ways:  First, they are uniquely
+    # numbered and placed in the list _lritems.  Second, a linked list of LR items
+    # is built for each production.  For example:
+    #
+    #   E -> E PLUS E
+    #
+    # Creates the list
+    #
+    #  [E -> . E PLUS E, E -> E . PLUS E, E -> E PLUS . E, E -> E PLUS E . ]
+    # -----------------------------------------------------------------------------
+
+    def build_lritems(self):
+        for p in self.Productions:
+            lastlri = p
+            i = 0
+            lr_items = []
+            while True:
+                if i > len(p):
+                    lri = None
+                else:
+                    lri = LRItem(p, i)
+                    # Precompute the list of productions immediately following
+                    try:
+                        lri.lr_after = self.Prodnames[lri.prod[i+1]]
+                    except (IndexError, KeyError):
+                        lri.lr_after = []
+                    try:
+                        lri.lr_before = lri.prod[i-1]
+                    except IndexError:
+                        lri.lr_before = None
+
+                lastlri.lr_next = lri
+                if not lri:
+                    break
+                lr_items.append(lri)
+                lastlri = lri
+                i += 1
+            p.lr_items = lr_items
+
+# -----------------------------------------------------------------------------
+#                            == Class LRTable ==
+#
+# This basic class represents a basic table of LR parsing information.
+# Methods for generating the tables are not defined here.  They are defined
+# in the derived class LRGeneratedTable.
+# -----------------------------------------------------------------------------
+
+class VersionError(YaccError):
+    pass
+
+class LRTable(object):
+    def __init__(self):
+        self.lr_action = None
+        self.lr_goto = None
+        self.lr_productions = None
+        self.lr_method = None
+
+    def read_table(self, module):
+        if isinstance(module, types.ModuleType):
+            parsetab = module
+        else:
+            exec('import %s' % module)
+            parsetab = sys.modules[module]
+
+        if parsetab._tabversion != __tabversion__:
+            raise VersionError('yacc table file version is out of date')
+
+        self.lr_action = parsetab._lr_action
+        self.lr_goto = parsetab._lr_goto
+
+        self.lr_productions = []
+        for p in parsetab._lr_productions:
+            self.lr_productions.append(MiniProduction(*p))
+
+        self.lr_method = parsetab._lr_method
+        return parsetab._lr_signature
+
+    def read_pickle(self, filename):
+        try:
+            import cPickle as pickle
+        except ImportError:
+            import pickle
+
+        if not os.path.exists(filename):
+          raise ImportError
+
+        in_f = open(filename, 'rb')
+
+        tabversion = pickle.load(in_f)
+        if tabversion != __tabversion__:
+            raise VersionError('yacc table file version is out of date')
+        self.lr_method = pickle.load(in_f)
+        signature      = pickle.load(in_f)
+        self.lr_action = pickle.load(in_f)
+        self.lr_goto   = pickle.load(in_f)
+        productions    = pickle.load(in_f)
+
+        self.lr_productions = []
+        for p in productions:
+            self.lr_productions.append(MiniProduction(*p))
+
+        in_f.close()
+        return signature
+
+    # Bind all production function names to callable objects in pdict
+    def bind_callables(self, pdict):
+        for p in self.lr_productions:
+            p.bind(pdict)
+
+
+# -----------------------------------------------------------------------------
+#                           === LR Generator ===
+#
+# The following classes and functions are used to generate LR parsing tables on
+# a grammar.
+# -----------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+# digraph()
+# traverse()
+#
+# The following two functions are used to compute set valued functions
+# of the form:
+#
+#     F(x) = F'(x) U U{F(y) | x R y}
+#
+# This is used to compute the values of Read() sets as well as FOLLOW sets
+# in LALR(1) generation.
+#
+# Inputs:  X    - An input set
+#          R    - A relation
+#          FP   - Set-valued function
+# ------------------------------------------------------------------------------
+
+def digraph(X, R, FP):
+    N = {}
+    for x in X:
+        N[x] = 0
+    stack = []
+    F = {}
+    for x in X:
+        if N[x] == 0:
+            traverse(x, N, stack, F, X, R, FP)
+    return F
+
+def traverse(x, N, stack, F, X, R, FP):
+    stack.append(x)
+    d = len(stack)
+    N[x] = d
+    F[x] = FP(x)             # F(X) <- F'(x)
+
+    rel = R(x)               # Get y's related to x
+    for y in rel:
+        if N[y] == 0:
+            traverse(y, N, stack, F, X, R, FP)
+        N[x] = min(N[x], N[y])
+        for a in F.get(y, []):
+            if a not in F[x]:
+                F[x].append(a)
+    if N[x] == d:
+        N[stack[-1]] = MAXINT
+        F[stack[-1]] = F[x]
+        element = stack.pop()
+        while element != x:
+            N[stack[-1]] = MAXINT
+            F[stack[-1]] = F[x]
+            element = stack.pop()
+
+class LALRError(YaccError):
+    pass
+
+# -----------------------------------------------------------------------------
+#                             == LRGeneratedTable ==
+#
+# This class implements the LR table generation algorithm.  There are no
+# public methods except for write()
+# -----------------------------------------------------------------------------
+
+class LRGeneratedTable(LRTable):
+    def __init__(self, grammar, method='LALR', log=None):
+        if method not in ['SLR', 'LALR']:
+            raise LALRError('Unsupported method %s' % method)
+
+        self.grammar = grammar
+        self.lr_method = method
+
+        # Set up the logger
+        if not log:
+            log = NullLogger()
+        self.log = log
+
+        # Internal attributes
+        self.lr_action     = {}        # Action table
+        self.lr_goto       = {}        # Goto table
+        self.lr_productions  = grammar.Productions    # Copy of grammar Production array
+        self.lr_goto_cache = {}        # Cache of computed gotos
+        self.lr0_cidhash   = {}        # Cache of closures
+
+        self._add_count    = 0         # Internal counter used to detect cycles
+
+        # Diagonistic information filled in by the table generator
+        self.sr_conflict   = 0
+        self.rr_conflict   = 0
+        self.conflicts     = []        # List of conflicts
+
+        self.sr_conflicts  = []
+        self.rr_conflicts  = []
+
+        # Build the tables
+        self.grammar.build_lritems()
+        self.grammar.compute_first()
+        self.grammar.compute_follow()
+        self.lr_parse_table()
+
+    # Compute the LR(0) closure operation on I, where I is a set of LR(0) items.
+
+    def lr0_closure(self, I):
+        self._add_count += 1
+
+        # Add everything in I to J
+        J = I[:]
+        didadd = True
+        while didadd:
+            didadd = False
+            for j in J:
+                for x in j.lr_after:
+                    if getattr(x, 'lr0_added', 0) == self._add_count:
+                        continue
+                    # Add B --> .G to J
+                    J.append(x.lr_next)
+                    x.lr0_added = self._add_count
+                    didadd = True
+
+        return J
+
+    # Compute the LR(0) goto function goto(I,X) where I is a set
+    # of LR(0) items and X is a grammar symbol.   This function is written
+    # in a way that guarantees uniqueness of the generated goto sets
+    # (i.e. the same goto set will never be returned as two different Python
+    # objects).  With uniqueness, we can later do fast set comparisons using
+    # id(obj) instead of element-wise comparison.
+
+    def lr0_goto(self, I, x):
+        # First we look for a previously cached entry
+        g = self.lr_goto_cache.get((id(I), x))
+        if g:
+            return g
+
+        # Now we generate the goto set in a way that guarantees uniqueness
+        # of the result
+
+        s = self.lr_goto_cache.get(x)
+        if not s:
+            s = {}
+            self.lr_goto_cache[x] = s
+
+        gs = []
+        for p in I:
+            n = p.lr_next
+            if n and n.lr_before == x:
+                s1 = s.get(id(n))
+                if not s1:
+                    s1 = {}
+                    s[id(n)] = s1
+                gs.append(n)
+                s = s1
+        g = s.get('$end')
+        if not g:
+            if gs:
+                g = self.lr0_closure(gs)
+                s['$end'] = g
+            else:
+                s['$end'] = gs
+        self.lr_goto_cache[(id(I), x)] = g
+        return g
+
+    # Compute the LR(0) sets of item function
+    def lr0_items(self):
+        C = [self.lr0_closure([self.grammar.Productions[0].lr_next])]
+        i = 0
+        for I in C:
+            self.lr0_cidhash[id(I)] = i
+            i += 1
+
+        # Loop over the items in C and each grammar symbols
+        i = 0
+        while i < len(C):
+            I = C[i]
+            i += 1
+
+            # Collect all of the symbols that could possibly be in the goto(I,X) sets
+            asyms = {}
+            for ii in I:
+                for s in ii.usyms:
+                    asyms[s] = None
+
+            for x in asyms:
+                g = self.lr0_goto(I, x)
+                if not g or id(g) in self.lr0_cidhash:
+                    continue
+                self.lr0_cidhash[id(g)] = len(C)
+                C.append(g)
+
+        return C
+
+    # -----------------------------------------------------------------------------
+    #                       ==== LALR(1) Parsing ====
+    #
+    # LALR(1) parsing is almost exactly the same as SLR except that instead of
+    # relying upon Follow() sets when performing reductions, a more selective
+    # lookahead set that incorporates the state of the LR(0) machine is utilized.
+    # Thus, we mainly just have to focus on calculating the lookahead sets.
+    #
+    # The method used here is due to DeRemer and Pennelo (1982).
+    #
+    # DeRemer, F. L., and T. J. Pennelo: "Efficient Computation of LALR(1)
+    #     Lookahead Sets", ACM Transactions on Programming Languages and Systems,
+    #     Vol. 4, No. 4, Oct. 1982, pp. 615-649
+    #
+    # Further details can also be found in:
+    #
+    #  J. Tremblay and P. Sorenson, "The Theory and Practice of Compiler Writing",
+    #      McGraw-Hill Book Company, (1985).
+    #
+    # -----------------------------------------------------------------------------
+
+    # -----------------------------------------------------------------------------
+    # compute_nullable_nonterminals()
+    #
+    # Creates a dictionary containing all of the non-terminals that might produce
+    # an empty production.
+    # -----------------------------------------------------------------------------
+
+    def compute_nullable_nonterminals(self):
+        nullable = set()
+        num_nullable = 0
+        while True:
+            for p in self.grammar.Productions[1:]:
+                if p.len == 0:
+                    nullable.add(p.name)
+                    continue
+                for t in p.prod:
+                    if t not in nullable:
+                        break
+                else:
+                    nullable.add(p.name)
+            if len(nullable) == num_nullable:
+                break
+            num_nullable = len(nullable)
+        return nullable
+
+    # -----------------------------------------------------------------------------
+    # find_nonterminal_trans(C)
+    #
+    # Given a set of LR(0) items, this functions finds all of the non-terminal
+    # transitions.    These are transitions in which a dot appears immediately before
+    # a non-terminal.   Returns a list of tuples of the form (state,N) where state
+    # is the state number and N is the nonterminal symbol.
+    #
+    # The input C is the set of LR(0) items.
+    # -----------------------------------------------------------------------------
+
+    def find_nonterminal_transitions(self, C):
+        trans = []
+        for stateno, state in enumerate(C):
+            for p in state:
+                if p.lr_index < p.len - 1:
+                    t = (stateno, p.prod[p.lr_index+1])
+                    if t[1] in self.grammar.Nonterminals:
+                        if t not in trans:
+                            trans.append(t)
+        return trans
+
+    # -----------------------------------------------------------------------------
+    # dr_relation()
+    #
+    # Computes the DR(p,A) relationships for non-terminal transitions.  The input
+    # is a tuple (state,N) where state is a number and N is a nonterminal symbol.
+    #
+    # Returns a list of terminals.
+    # -----------------------------------------------------------------------------
+
+    def dr_relation(self, C, trans, nullable):
+        dr_set = {}
+        state, N = trans
+        terms = []
+
+        g = self.lr0_goto(C[state], N)
+        for p in g:
+            if p.lr_index < p.len - 1:
+                a = p.prod[p.lr_index+1]
+                if a in self.grammar.Terminals:
+                    if a not in terms:
+                        terms.append(a)
+
+        # This extra bit is to handle the start state
+        if state == 0 and N == self.grammar.Productions[0].prod[0]:
+            terms.append('$end')
+
+        return terms
+
+    # -----------------------------------------------------------------------------
+    # reads_relation()
+    #
+    # Computes the READS() relation (p,A) READS (t,C).
+    # -----------------------------------------------------------------------------
+
+    def reads_relation(self, C, trans, empty):
+        # Look for empty transitions
+        rel = []
+        state, N = trans
+
+        g = self.lr0_goto(C[state], N)
+        j = self.lr0_cidhash.get(id(g), -1)
+        for p in g:
+            if p.lr_index < p.len - 1:
+                a = p.prod[p.lr_index + 1]
+                if a in empty:
+                    rel.append((j, a))
+
+        return rel
+
+    # -----------------------------------------------------------------------------
+    # compute_lookback_includes()
+    #
+    # Determines the lookback and includes relations
+    #
+    # LOOKBACK:
+    #
+    # This relation is determined by running the LR(0) state machine forward.
+    # For example, starting with a production "N : . A B C", we run it forward
+    # to obtain "N : A B C ."   We then build a relationship between this final
+    # state and the starting state.   These relationships are stored in a dictionary
+    # lookdict.
+    #
+    # INCLUDES:
+    #
+    # Computes the INCLUDE() relation (p,A) INCLUDES (p',B).
+    #
+    # This relation is used to determine non-terminal transitions that occur
+    # inside of other non-terminal transition states.   (p,A) INCLUDES (p', B)
+    # if the following holds:
+    #
+    #       B -> LAT, where T -> epsilon and p' -L-> p
+    #
+    # L is essentially a prefix (which may be empty), T is a suffix that must be
+    # able to derive an empty string.  State p' must lead to state p with the string L.
+    #
+    # -----------------------------------------------------------------------------
+
+    def compute_lookback_includes(self, C, trans, nullable):
+        lookdict = {}          # Dictionary of lookback relations
+        includedict = {}       # Dictionary of include relations
+
+        # Make a dictionary of non-terminal transitions
+        dtrans = {}
+        for t in trans:
+            dtrans[t] = 1
+
+        # Loop over all transitions and compute lookbacks and includes
+        for state, N in trans:
+            lookb = []
+            includes = []
+            for p in C[state]:
+                if p.name != N:
+                    continue
+
+                # Okay, we have a name match.  We now follow the production all the way
+                # through the state machine until we get the . on the right hand side
+
+                lr_index = p.lr_index
+                j = state
+                while lr_index < p.len - 1:
+                    lr_index = lr_index + 1
+                    t = p.prod[lr_index]
+
+                    # Check to see if this symbol and state are a non-terminal transition
+                    if (j, t) in dtrans:
+                        # Yes.  Okay, there is some chance that this is an includes relation
+                        # the only way to know for certain is whether the rest of the
+                        # production derives empty
+
+                        li = lr_index + 1
+                        while li < p.len:
+                            if p.prod[li] in self.grammar.Terminals:
+                                break      # No forget it
+                            if p.prod[li] not in nullable:
+                                break
+                            li = li + 1
+                        else:
+                            # Appears to be a relation between (j,t) and (state,N)
+                            includes.append((j, t))
+
+                    g = self.lr0_goto(C[j], t)               # Go to next set
+                    j = self.lr0_cidhash.get(id(g), -1)      # Go to next state
+
+                # When we get here, j is the final state, now we have to locate the production
+                for r in C[j]:
+                    if r.name != p.name:
+                        continue
+                    if r.len != p.len:
+                        continue
+                    i = 0
+                    # This look is comparing a production ". A B C" with "A B C ."
+                    while i < r.lr_index:
+                        if r.prod[i] != p.prod[i+1]:
+                            break
+                        i = i + 1
+                    else:
+                        lookb.append((j, r))
+            for i in includes:
+                if i not in includedict:
+                    includedict[i] = []
+                includedict[i].append((state, N))
+            lookdict[(state, N)] = lookb
+
+        return lookdict, includedict
+
+    # -----------------------------------------------------------------------------
+    # compute_read_sets()
+    #
+    # Given a set of LR(0) items, this function computes the read sets.
+    #
+    # Inputs:  C        =  Set of LR(0) items
+    #          ntrans   = Set of nonterminal transitions
+    #          nullable = Set of empty transitions
+    #
+    # Returns a set containing the read sets
+    # -----------------------------------------------------------------------------
+
+    def compute_read_sets(self, C, ntrans, nullable):
+        FP = lambda x: self.dr_relation(C, x, nullable)
+        R =  lambda x: self.reads_relation(C, x, nullable)
+        F = digraph(ntrans, R, FP)
+        return F
+
+    # -----------------------------------------------------------------------------
+    # compute_follow_sets()
+    #
+    # Given a set of LR(0) items, a set of non-terminal transitions, a readset,
+    # and an include set, this function computes the follow sets
+    #
+    # Follow(p,A) = Read(p,A) U U {Follow(p',B) | (p,A) INCLUDES (p',B)}
+    #
+    # Inputs:
+    #            ntrans     = Set of nonterminal transitions
+    #            readsets   = Readset (previously computed)
+    #            inclsets   = Include sets (previously computed)
+    #
+    # Returns a set containing the follow sets
+    # -----------------------------------------------------------------------------
+
+    def compute_follow_sets(self, ntrans, readsets, inclsets):
+        FP = lambda x: readsets[x]
+        R  = lambda x: inclsets.get(x, [])
+        F = digraph(ntrans, R, FP)
+        return F
+
+    # -----------------------------------------------------------------------------
+    # add_lookaheads()
+    #
+    # Attaches the lookahead symbols to grammar rules.
+    #
+    # Inputs:    lookbacks         -  Set of lookback relations
+    #            followset         -  Computed follow set
+    #
+    # This function directly attaches the lookaheads to productions contained
+    # in the lookbacks set
+    # -----------------------------------------------------------------------------
+
+    def add_lookaheads(self, lookbacks, followset):
+        for trans, lb in lookbacks.items():
+            # Loop over productions in lookback
+            for state, p in lb:
+                if state not in p.lookaheads:
+                    p.lookaheads[state] = []
+                f = followset.get(trans, [])
+                for a in f:
+                    if a not in p.lookaheads[state]:
+                        p.lookaheads[state].append(a)
+
+    # -----------------------------------------------------------------------------
+    # add_lalr_lookaheads()
+    #
+    # This function does all of the work of adding lookahead information for use
+    # with LALR parsing
+    # -----------------------------------------------------------------------------
+
+    def add_lalr_lookaheads(self, C):
+        # Determine all of the nullable nonterminals
+        nullable = self.compute_nullable_nonterminals()
+
+        # Find all non-terminal transitions
+        trans = self.find_nonterminal_transitions(C)
+
+        # Compute read sets
+        readsets = self.compute_read_sets(C, trans, nullable)
+
+        # Compute lookback/includes relations
+        lookd, included = self.compute_lookback_includes(C, trans, nullable)
+
+        # Compute LALR FOLLOW sets
+        followsets = self.compute_follow_sets(trans, readsets, included)
+
+        # Add all of the lookaheads
+        self.add_lookaheads(lookd, followsets)
+
+    # -----------------------------------------------------------------------------
+    # lr_parse_table()
+    #
+    # This function constructs the parse tables for SLR or LALR
+    # -----------------------------------------------------------------------------
+    def lr_parse_table(self):
+        Productions = self.grammar.Productions
+        Precedence  = self.grammar.Precedence
+        goto   = self.lr_goto         # Goto array
+        action = self.lr_action       # Action array
+        log    = self.log             # Logger for output
+
+        actionp = {}                  # Action production array (temporary)
+
+        log.info('Parsing method: %s', self.lr_method)
+
+        # Step 1: Construct C = { I0, I1, ... IN}, collection of LR(0) items
+        # This determines the number of states
+
+        C = self.lr0_items()
+
+        if self.lr_method == 'LALR':
+            self.add_lalr_lookaheads(C)
+
+        # Build the parser table, state by state
+        st = 0
+        for I in C:
+            # Loop over each production in I
+            actlist = []              # List of actions
+            st_action  = {}
+            st_actionp = {}
+            st_goto    = {}
+            log.info('')
+            log.info('state %d', st)
+            log.info('')
+            for p in I:
+                log.info('    (%d) %s', p.number, p)
+            log.info('')
+
+            for p in I:
+                    if p.len == p.lr_index + 1:
+                        if p.name == "S'":
+                            # Start symbol. Accept!
+                            st_action['$end'] = 0
+                            st_actionp['$end'] = p
+                        else:
+                            # We are at the end of a production.  Reduce!
+                            if self.lr_method == 'LALR':
+                                laheads = p.lookaheads[st]
+                            else:
+                                laheads = self.grammar.Follow[p.name]
+                            for a in laheads:
+                                actlist.append((a, p, 'reduce using rule %d (%s)' % (p.number, p)))
+                                r = st_action.get(a)
+                                if r is not None:
+                                    # Whoa. Have a shift/reduce or reduce/reduce conflict
+                                    if r > 0:
+                                        # Need to decide on shift or reduce here
+                                        # By default we favor shifting. Need to add
+                                        # some precedence rules here.
+
+                                        # Shift precedence comes from the token
+                                        sprec, slevel = Precedence.get(a, ('right', 0))
+
+                                        # Reduce precedence comes from rule being reduced (p)
+                                        rprec, rlevel = Productions[p.number].prec
+
+                                        if (slevel < rlevel) or ((slevel == rlevel) and (rprec == 'left')):
+                                            # We really need to reduce here.
+                                            st_action[a] = -p.number
+                                            st_actionp[a] = p
+                                            if not slevel and not rlevel:
+                                                log.info('  ! shift/reduce conflict for %s resolved as reduce', a)
+                                                self.sr_conflicts.append((st, a, 'reduce'))
+                                            Productions[p.number].reduced += 1
+                                        elif (slevel == rlevel) and (rprec == 'nonassoc'):
+                                            st_action[a] = None
+                                        else:
+                                            # Hmmm. Guess we'll keep the shift
+                                            if not rlevel:
+                                                log.info('  ! shift/reduce conflict for %s resolved as shift', a)
+                                                self.sr_conflicts.append((st, a, 'shift'))
+                                    elif r < 0:
+                                        # Reduce/reduce conflict.   In this case, we favor the rule
+                                        # that was defined first in the grammar file
+                                        oldp = Productions[-r]
+                                        pp = Productions[p.number]
+                                        if oldp.line > pp.line:
+                                            st_action[a] = -p.number
+                                            st_actionp[a] = p
+                                            chosenp, rejectp = pp, oldp
+                                            Productions[p.number].reduced += 1
+                                            Productions[oldp.number].reduced -= 1
+                                        else:
+                                            chosenp, rejectp = oldp, pp
+                                        self.rr_conflicts.append((st, chosenp, rejectp))
+                                        log.info('  ! reduce/reduce conflict for %s resolved using rule %d (%s)',
+                                                 a, st_actionp[a].number, st_actionp[a])
+                                    else:
+                                        raise LALRError('Unknown conflict in state %d' % st)
+                                else:
+                                    st_action[a] = -p.number
+                                    st_actionp[a] = p
+                                    Productions[p.number].reduced += 1
+                    else:
+                        i = p.lr_index
+                        a = p.prod[i+1]       # Get symbol right after the "."
+                        if a in self.grammar.Terminals:
+                            g = self.lr0_goto(I, a)
+                            j = self.lr0_cidhash.get(id(g), -1)
+                            if j >= 0:
+                                # We are in a shift state
+                                actlist.append((a, p, 'shift and go to state %d' % j))
+                                r = st_action.get(a)
+                                if r is not None:
+                                    # Whoa have a shift/reduce or shift/shift conflict
+                                    if r > 0:
+                                        if r != j:
+                                            raise LALRError('Shift/shift conflict in state %d' % st)
+                                    elif r < 0:
+                                        # Do a precedence check.
+                                        #   -  if precedence of reduce rule is higher, we reduce.
+                                        #   -  if precedence of reduce is same and left assoc, we reduce.
+                                        #   -  otherwise we shift
+
+                                        # Shift precedence comes from the token
+                                        sprec, slevel = Precedence.get(a, ('right', 0))
+
+                                        # Reduce precedence comes from the rule that could have been reduced
+                                        rprec, rlevel = Productions[st_actionp[a].number].prec
+
+                                        if (slevel > rlevel) or ((slevel == rlevel) and (rprec == 'right')):
+                                            # We decide to shift here... highest precedence to shift
+                                            Productions[st_actionp[a].number].reduced -= 1
+                                            st_action[a] = j
+                                            st_actionp[a] = p
+                                            if not rlevel:
+                                                log.info('  ! shift/reduce conflict for %s resolved as shift', a)
+                                                self.sr_conflicts.append((st, a, 'shift'))
+                                        elif (slevel == rlevel) and (rprec == 'nonassoc'):
+                                            st_action[a] = None
+                                        else:
+                                            # Hmmm. Guess we'll keep the reduce
+                                            if not slevel and not rlevel:
+                                                log.info('  ! shift/reduce conflict for %s resolved as reduce', a)
+                                                self.sr_conflicts.append((st, a, 'reduce'))
+
+                                    else:
+                                        raise LALRError('Unknown conflict in state %d' % st)
+                                else:
+                                    st_action[a] = j
+                                    st_actionp[a] = p
+
+            # Print the actions associated with each terminal
+            _actprint = {}
+            for a, p, m in actlist:
+                if a in st_action:
+                    if p is st_actionp[a]:
+                        log.info('    %-15s %s', a, m)
+                        _actprint[(a, m)] = 1
+            log.info('')
+            # Print the actions that were not used. (debugging)
+            not_used = 0
+            for a, p, m in actlist:
+                if a in st_action:
+                    if p is not st_actionp[a]:
+                        if not (a, m) in _actprint:
+                            log.debug('  ! %-15s [ %s ]', a, m)
+                            not_used = 1
+                            _actprint[(a, m)] = 1
+            if not_used:
+                log.debug('')
+
+            # Construct the goto table for this state
+
+            nkeys = {}
+            for ii in I:
+                for s in ii.usyms:
+                    if s in self.grammar.Nonterminals:
+                        nkeys[s] = None
+            for n in nkeys:
+                g = self.lr0_goto(I, n)
+                j = self.lr0_cidhash.get(id(g), -1)
+                if j >= 0:
+                    st_goto[n] = j
+                    log.info('    %-30s shift and go to state %d', n, j)
+
+            action[st] = st_action
+            actionp[st] = st_actionp
+            goto[st] = st_goto
+            st += 1
+
+    # -----------------------------------------------------------------------------
+    # write()
+    #
+    # This function writes the LR parsing tables to a file
+    # -----------------------------------------------------------------------------
+
+    def write_table(self, tabmodule, outputdir='', signature=''):
+        if isinstance(tabmodule, types.ModuleType):
+            raise IOError("Won't overwrite existing tabmodule")
+
+        basemodulename = tabmodule.split('.')[-1]
+        filename = os.path.join(outputdir, basemodulename) + '.py'
+        try:
+            f = open(filename, 'w')
+
+            f.write('''
+# %s
+# This file is automatically generated. Do not edit.
+_tabversion = %r
+
+_lr_method = %r
+
+_lr_signature = %r
+    ''' % (os.path.basename(filename), __tabversion__, self.lr_method, signature))
+
+            # Change smaller to 0 to go back to original tables
+            smaller = 1
+
+            # Factor out names to try and make smaller
+            if smaller:
+                items = {}
+
+                for s, nd in self.lr_action.items():
+                    for name, v in nd.items():
+                        i = items.get(name)
+                        if not i:
+                            i = ([], [])
+                            items[name] = i
+                        i[0].append(s)
+                        i[1].append(v)
+
+                f.write('\n_lr_action_items = {')
+                for k, v in items.items():
+                    f.write('%r:([' % k)
+                    for i in v[0]:
+                        f.write('%r,' % i)
+                    f.write('],[')
+                    for i in v[1]:
+                        f.write('%r,' % i)
+
+                    f.write(']),')
+                f.write('}\n')
+
+                f.write('''
+_lr_action = {}
+for _k, _v in _lr_action_items.items():
+   for _x,_y in zip(_v[0],_v[1]):
+      if not _x in _lr_action:  _lr_action[_x] = {}
+      _lr_action[_x][_k] = _y
+del _lr_action_items
+''')
+
+            else:
+                f.write('\n_lr_action = { ')
+                for k, v in self.lr_action.items():
+                    f.write('(%r,%r):%r,' % (k[0], k[1], v))
+                f.write('}\n')
+
+            if smaller:
+                # Factor out names to try and make smaller
+                items = {}
+
+                for s, nd in self.lr_goto.items():
+                    for name, v in nd.items():
+                        i = items.get(name)
+                        if not i:
+                            i = ([], [])
+                            items[name] = i
+                        i[0].append(s)
+                        i[1].append(v)
+
+                f.write('\n_lr_goto_items = {')
+                for k, v in items.items():
+                    f.write('%r:([' % k)
+                    for i in v[0]:
+                        f.write('%r,' % i)
+                    f.write('],[')
+                    for i in v[1]:
+                        f.write('%r,' % i)
+
+                    f.write(']),')
+                f.write('}\n')
+
+                f.write('''
+_lr_goto = {}
+for _k, _v in _lr_goto_items.items():
+   for _x, _y in zip(_v[0], _v[1]):
+       if not _x in _lr_goto: _lr_goto[_x] = {}
+       _lr_goto[_x][_k] = _y
+del _lr_goto_items
+''')
+            else:
+                f.write('\n_lr_goto = { ')
+                for k, v in self.lr_goto.items():
+                    f.write('(%r,%r):%r,' % (k[0], k[1], v))
+                f.write('}\n')
+
+            # Write production table
+            f.write('_lr_productions = [\n')
+            for p in self.lr_productions:
+                if p.func:
+                    f.write('  (%r,%r,%d,%r,%r,%d),\n' % (p.str, p.name, p.len,
+                                                          p.func, os.path.basename(p.file), p.line))
+                else:
+                    f.write('  (%r,%r,%d,None,None,None),\n' % (str(p), p.name, p.len))
+            f.write(']\n')
+            f.close()
+
+        except IOError as e:
+            raise
+
+
+    # -----------------------------------------------------------------------------
+    # pickle_table()
+    #
+    # This function pickles the LR parsing tables to a supplied file object
+    # -----------------------------------------------------------------------------
+
+    def pickle_table(self, filename, signature=''):
+        try:
+            import cPickle as pickle
+        except ImportError:
+            import pickle
+        with open(filename, 'wb') as outf:
+            pickle.dump(__tabversion__, outf, pickle_protocol)
+            pickle.dump(self.lr_method, outf, pickle_protocol)
+            pickle.dump(signature, outf, pickle_protocol)
+            pickle.dump(self.lr_action, outf, pickle_protocol)
+            pickle.dump(self.lr_goto, outf, pickle_protocol)
+
+            outp = []
+            for p in self.lr_productions:
+                if p.func:
+                    outp.append((p.str, p.name, p.len, p.func, os.path.basename(p.file), p.line))
+                else:
+                    outp.append((str(p), p.name, p.len, None, None, None))
+            pickle.dump(outp, outf, pickle_protocol)
+
+# -----------------------------------------------------------------------------
+#                            === INTROSPECTION ===
+#
+# The following functions and classes are used to implement the PLY
+# introspection features followed by the yacc() function itself.
+# -----------------------------------------------------------------------------
+
+# -----------------------------------------------------------------------------
+# get_caller_module_dict()
+#
+# This function returns a dictionary containing all of the symbols defined within
+# a caller further down the call stack.  This is used to get the environment
+# associated with the yacc() call if none was provided.
+# -----------------------------------------------------------------------------
+
+def get_caller_module_dict(levels):
+    f = sys._getframe(levels)
+    ldict = f.f_globals.copy()
+    if f.f_globals != f.f_locals:
+        ldict.update(f.f_locals)
+    return ldict
+
+# -----------------------------------------------------------------------------
+# parse_grammar()
+#
+# This takes a raw grammar rule string and parses it into production data
+# -----------------------------------------------------------------------------
+def parse_grammar(doc, file, line):
+    grammar = []
+    # Split the doc string into lines
+    pstrings = doc.splitlines()
+    lastp = None
+    dline = line
+    for ps in pstrings:
+        dline += 1
+        p = ps.split()
+        if not p:
+            continue
+        try:
+            if p[0] == '|':
+                # This is a continuation of a previous rule
+                if not lastp:
+                    raise SyntaxError("%s:%d: Misplaced '|'" % (file, dline))
+                prodname = lastp
+                syms = p[1:]
+            else:
+                prodname = p[0]
+                lastp = prodname
+                syms   = p[2:]
+                assign = p[1]
+                if assign != ':' and assign != '::=':
+                    raise SyntaxError("%s:%d: Syntax error. Expected ':'" % (file, dline))
+
+            grammar.append((file, dline, prodname, syms))
+        except SyntaxError:
+            raise
+        except Exception:
+            raise SyntaxError('%s:%d: Syntax error in rule %r' % (file, dline, ps.strip()))
+
+    return grammar
+
+# -----------------------------------------------------------------------------
+# ParserReflect()
+#
+# This class represents information extracted for building a parser including
+# start symbol, error function, tokens, precedence list, action functions,
+# etc.
+# -----------------------------------------------------------------------------
+class ParserReflect(object):
+    def __init__(self, pdict, log=None):
+        self.pdict      = pdict
+        self.start      = None
+        self.error_func = None
+        self.tokens     = None
+        self.modules    = set()
+        self.grammar    = []
+        self.error      = False
+
+        if log is None:
+            self.log = PlyLogger(sys.stderr)
+        else:
+            self.log = log
+
+    # Get all of the basic information
+    def get_all(self):
+        self.get_start()
+        self.get_error_func()
+        self.get_tokens()
+        self.get_precedence()
+        self.get_pfunctions()
+
+    # Validate all of the information
+    def validate_all(self):
+        self.validate_start()
+        self.validate_error_func()
+        self.validate_tokens()
+        self.validate_precedence()
+        self.validate_pfunctions()
+        self.validate_modules()
+        return self.error
+
+    # Compute a signature over the grammar
+    def signature(self):
+        parts = []
+        try:
+            if self.start:
+                parts.append(self.start)
+            if self.prec:
+                parts.append(''.join([''.join(p) for p in self.prec]))
+            if self.tokens:
+                parts.append(' '.join(self.tokens))
+            for f in self.pfuncs:
+                if f[3]:
+                    parts.append(f[3])
+        except (TypeError, ValueError):
+            pass
+        return ''.join(parts)
+
+    # -----------------------------------------------------------------------------
+    # validate_modules()
+    #
+    # This method checks to see if there are duplicated p_rulename() functions
+    # in the parser module file.  Without this function, it is really easy for
+    # users to make mistakes by cutting and pasting code fragments (and it's a real
+    # bugger to try and figure out why the resulting parser doesn't work).  Therefore,
+    # we just do a little regular expression pattern matching of def statements
+    # to try and detect duplicates.
+    # -----------------------------------------------------------------------------
+
+    def validate_modules(self):
+        # Match def p_funcname(
+        fre = re.compile(r'\s*def\s+(p_[a-zA-Z_0-9]*)\(')
+
+        for module in self.modules:
+            try:
+                lines, linen = inspect.getsourcelines(module)
+            except IOError:
+                continue
+
+            counthash = {}
+            for linen, line in enumerate(lines):
+                linen += 1
+                m = fre.match(line)
+                if m:
+                    name = m.group(1)
+                    prev = counthash.get(name)
+                    if not prev:
+                        counthash[name] = linen
+                    else:
+                        filename = inspect.getsourcefile(module)
+                        self.log.warning('%s:%d: Function %s redefined. Previously defined on line %d',
+                                         filename, linen, name, prev)
+
+    # Get the start symbol
+    def get_start(self):
+        self.start = self.pdict.get('start')
+
+    # Validate the start symbol
+    def validate_start(self):
+        if self.start is not None:
+            if not isinstance(self.start, string_types):
+                self.log.error("'start' must be a string")
+
+    # Look for error handler
+    def get_error_func(self):
+        self.error_func = self.pdict.get('p_error')
+
+    # Validate the error function
+    def validate_error_func(self):
+        if self.error_func:
+            if isinstance(self.error_func, types.FunctionType):
+                ismethod = 0
+            elif isinstance(self.error_func, types.MethodType):
+                ismethod = 1
+            else:
+                self.log.error("'p_error' defined, but is not a function or method")
+                self.error = True
+                return
+
+            eline = self.error_func.__code__.co_firstlineno
+            efile = self.error_func.__code__.co_filename
+            module = inspect.getmodule(self.error_func)
+            self.modules.add(module)
+
+            argcount = self.error_func.__code__.co_argcount - ismethod
+            if argcount != 1:
+                self.log.error('%s:%d: p_error() requires 1 argument', efile, eline)
+                self.error = True
+
+    # Get the tokens map
+    def get_tokens(self):
+        tokens = self.pdict.get('tokens')
+        if not tokens:
+            self.log.error('No token list is defined')
+            self.error = True
+            return
+
+        if not isinstance(tokens, (list, tuple)):
+            self.log.error('tokens must be a list or tuple')
+            self.error = True
+            return
+
+        if not tokens:
+            self.log.error('tokens is empty')
+            self.error = True
+            return
+
+        self.tokens = tokens
+
+    # Validate the tokens
+    def validate_tokens(self):
+        # Validate the tokens.
+        if 'error' in self.tokens:
+            self.log.error("Illegal token name 'error'. Is a reserved word")
+            self.error = True
+            return
+
+        terminals = set()
+        for n in self.tokens:
+            if n in terminals:
+                self.log.warning('Token %r multiply defined', n)
+            terminals.add(n)
+
+    # Get the precedence map (if any)
+    def get_precedence(self):
+        self.prec = self.pdict.get('precedence')
+
+    # Validate and parse the precedence map
+    def validate_precedence(self):
+        preclist = []
+        if self.prec:
+            if not isinstance(self.prec, (list, tuple)):
+                self.log.error('precedence must be a list or tuple')
+                self.error = True
+                return
+            for level, p in enumerate(self.prec):
+                if not isinstance(p, (list, tuple)):
+                    self.log.error('Bad precedence table')
+                    self.error = True
+                    return
+
+                if len(p) < 2:
+                    self.log.error('Malformed precedence entry %s. Must be (assoc, term, ..., term)', p)
+                    self.error = True
+                    return
+                assoc = p[0]
+                if not isinstance(assoc, string_types):
+                    self.log.error('precedence associativity must be a string')
+                    self.error = True
+                    return
+                for term in p[1:]:
+                    if not isinstance(term, string_types):
+                        self.log.error('precedence items must be strings')
+                        self.error = True
+                        return
+                    preclist.append((term, assoc, level+1))
+        self.preclist = preclist
+
+    # Get all p_functions from the grammar
+    def get_pfunctions(self):
+        p_functions = []
+        for name, item in self.pdict.items():
+            if not name.startswith('p_') or name == 'p_error':
+                continue
+            if isinstance(item, (types.FunctionType, types.MethodType)):
+                line = getattr(item, 'co_firstlineno', item.__code__.co_firstlineno)
+                module = inspect.getmodule(item)
+                p_functions.append((line, module, name, item.__doc__))
+
+        # Sort all of the actions by line number; make sure to stringify
+        # modules to make them sortable, since `line` may not uniquely sort all
+        # p functions
+        p_functions.sort(key=lambda p_function: (
+            p_function[0],
+            str(p_function[1]),
+            p_function[2],
+            p_function[3]))
+        self.pfuncs = p_functions
+
+    # Validate all of the p_functions
+    def validate_pfunctions(self):
+        grammar = []
+        # Check for non-empty symbols
+        if len(self.pfuncs) == 0:
+            self.log.error('no rules of the form p_rulename are defined')
+            self.error = True
+            return
+
+        for line, module, name, doc in self.pfuncs:
+            file = inspect.getsourcefile(module)
+            func = self.pdict[name]
+            if isinstance(func, types.MethodType):
+                reqargs = 2
+            else:
+                reqargs = 1
+            if func.__code__.co_argcount > reqargs:
+                self.log.error('%s:%d: Rule %r has too many arguments', file, line, func.__name__)
+                self.error = True
+            elif func.__code__.co_argcount < reqargs:
+                self.log.error('%s:%d: Rule %r requires an argument', file, line, func.__name__)
+                self.error = True
+            elif not func.__doc__:
+                self.log.warning('%s:%d: No documentation string specified in function %r (ignored)',
+                                 file, line, func.__name__)
+            else:
+                try:
+                    parsed_g = parse_grammar(doc, file, line)
+                    for g in parsed_g:
+                        grammar.append((name, g))
+                except SyntaxError as e:
+                    self.log.error(str(e))
+                    self.error = True
+
+                # Looks like a valid grammar rule
+                # Mark the file in which defined.
+                self.modules.add(module)
+
+        # Secondary validation step that looks for p_ definitions that are not functions
+        # or functions that look like they might be grammar rules.
+
+        for n, v in self.pdict.items():
+            if n.startswith('p_') and isinstance(v, (types.FunctionType, types.MethodType)):
+                continue
+            if n.startswith('t_'):
+                continue
+            if n.startswith('p_') and n != 'p_error':
+                self.log.warning('%r not defined as a function', n)
+            if ((isinstance(v, types.FunctionType) and v.__code__.co_argcount == 1) or
+                   (isinstance(v, types.MethodType) and v.__func__.__code__.co_argcount == 2)):
+                if v.__doc__:
+                    try:
+                        doc = v.__doc__.split(' ')
+                        if doc[1] == ':':
+                            self.log.warning('%s:%d: Possible grammar rule %r defined without p_ prefix',
+                                             v.__code__.co_filename, v.__code__.co_firstlineno, n)
+                    except IndexError:
+                        pass
+
+        self.grammar = grammar
+
+# -----------------------------------------------------------------------------
+# yacc(module)
+#
+# Build a parser
+# -----------------------------------------------------------------------------
+
+def yacc(method='LALR', debug=yaccdebug, module=None, tabmodule=tab_module, start=None,
+         check_recursion=True, optimize=False, write_tables=True, debugfile=debug_file,
+         outputdir=None, debuglog=None, errorlog=None, picklefile=None):
+
+    if tabmodule is None:
+        tabmodule = tab_module
+
+    # Reference to the parsing method of the last built parser
+    global parse
+
+    # If pickling is enabled, table files are not created
+    if picklefile:
+        write_tables = 0
+
+    if errorlog is None:
+        errorlog = PlyLogger(sys.stderr)
+
+    # Get the module dictionary used for the parser
+    if module:
+        _items = [(k, getattr(module, k)) for k in dir(module)]
+        pdict = dict(_items)
+        # If no __file__ attribute is available, try to obtain it from the __module__ instead
+        if '__file__' not in pdict:
+            pdict['__file__'] = sys.modules[pdict['__module__']].__file__
+    else:
+        pdict = get_caller_module_dict(2)
+
+    if outputdir is None:
+        # If no output directory is set, the location of the output files
+        # is determined according to the following rules:
+        #     - If tabmodule specifies a package, files go into that package directory
+        #     - Otherwise, files go in the same directory as the specifying module
+        if isinstance(tabmodule, types.ModuleType):
+            srcfile = tabmodule.__file__
+        else:
+            if '.' not in tabmodule:
+                srcfile = pdict['__file__']
+            else:
+                parts = tabmodule.split('.')
+                pkgname = '.'.join(parts[:-1])
+                exec('import %s' % pkgname)
+                srcfile = getattr(sys.modules[pkgname], '__file__', '')
+        outputdir = os.path.dirname(srcfile)
+
+    # Determine if the module is package of a package or not.
+    # If so, fix the tabmodule setting so that tables load correctly
+    pkg = pdict.get('__package__')
+    if pkg and isinstance(tabmodule, str):
+        if '.' not in tabmodule:
+            tabmodule = pkg + '.' + tabmodule
+
+
+
+    # Set start symbol if it's specified directly using an argument
+    if start is not None:
+        pdict['start'] = start
+
+    # Collect parser information from the dictionary
+    pinfo = ParserReflect(pdict, log=errorlog)
+    pinfo.get_all()
+
+    if pinfo.error:
+        raise YaccError('Unable to build parser')
+
+    # Check signature against table files (if any)
+    signature = pinfo.signature()
+
+    # Read the tables
+    try:
+        lr = LRTable()
+        if picklefile:
+            read_signature = lr.read_pickle(picklefile)
+        else:
+            read_signature = lr.read_table(tabmodule)
+        if optimize or (read_signature == signature):
+            try:
+                lr.bind_callables(pinfo.pdict)
+                parser = LRParser(lr, pinfo.error_func)
+                parse = parser.parse
+                return parser
+            except Exception as e:
+                errorlog.warning('There was a problem loading the table file: %r', e)
+    except VersionError as e:
+        errorlog.warning(str(e))
+    except ImportError:
+        pass
+
+    if debuglog is None:
+        if debug:
+            try:
+                debuglog = PlyLogger(open(os.path.join(outputdir, debugfile), 'w'))
+            except IOError as e:
+                errorlog.warning("Couldn't open %r. %s" % (debugfile, e))
+                debuglog = NullLogger()
+        else:
+            debuglog = NullLogger()
+
+    debuglog.info('Created by PLY version %s (http://www.dabeaz.com/ply)', __version__)
+
+    errors = False
+
+    # Validate the parser information
+    if pinfo.validate_all():
+        raise YaccError('Unable to build parser')
+
+    if not pinfo.error_func:
+        errorlog.warning('no p_error() function is defined')
+
+    # Create a grammar object
+    grammar = Grammar(pinfo.tokens)
+
+    # Set precedence level for terminals
+    for term, assoc, level in pinfo.preclist:
+        try:
+            grammar.set_precedence(term, assoc, level)
+        except GrammarError as e:
+            errorlog.warning('%s', e)
+
+    # Add productions to the grammar
+    for funcname, gram in pinfo.grammar:
+        file, line, prodname, syms = gram
+        try:
+            grammar.add_production(prodname, syms, funcname, file, line)
+        except GrammarError as e:
+            errorlog.error('%s', e)
+            errors = True
+
+    # Set the grammar start symbols
+    try:
+        if start is None:
+            grammar.set_start(pinfo.start)
+        else:
+            grammar.set_start(start)
+    except GrammarError as e:
+        errorlog.error(str(e))
+        errors = True
+
+    if errors:
+        raise YaccError('Unable to build parser')
+
+    # Verify the grammar structure
+    undefined_symbols = grammar.undefined_symbols()
+    for sym, prod in undefined_symbols:
+        errorlog.error('%s:%d: Symbol %r used, but not defined as a token or a rule', prod.file, prod.line, sym)
+        errors = True
+
+    unused_terminals = grammar.unused_terminals()
+    if unused_terminals:
+        debuglog.info('')
+        debuglog.info('Unused terminals:')
+        debuglog.info('')
+        for term in unused_terminals:
+            errorlog.warning('Token %r defined, but not used', term)
+            debuglog.info('    %s', term)
+
+    # Print out all productions to the debug log
+    if debug:
+        debuglog.info('')
+        debuglog.info('Grammar')
+        debuglog.info('')
+        for n, p in enumerate(grammar.Productions):
+            debuglog.info('Rule %-5d %s', n, p)
+
+    # Find unused non-terminals
+    unused_rules = grammar.unused_rules()
+    for prod in unused_rules:
+        errorlog.warning('%s:%d: Rule %r defined, but not used', prod.file, prod.line, prod.name)
+
+    if len(unused_terminals) == 1:
+        errorlog.warning('There is 1 unused token')
+    if len(unused_terminals) > 1:
+        errorlog.warning('There are %d unused tokens', len(unused_terminals))
+
+    if len(unused_rules) == 1:
+        errorlog.warning('There is 1 unused rule')
+    if len(unused_rules) > 1:
+        errorlog.warning('There are %d unused rules', len(unused_rules))
+
+    if debug:
+        debuglog.info('')
+        debuglog.info('Terminals, with rules where they appear')
+        debuglog.info('')
+        terms = list(grammar.Terminals)
+        terms.sort()
+        for term in terms:
+            debuglog.info('%-20s : %s', term, ' '.join([str(s) for s in grammar.Terminals[term]]))
+
+        debuglog.info('')
+        debuglog.info('Nonterminals, with rules where they appear')
+        debuglog.info('')
+        nonterms = list(grammar.Nonterminals)
+        nonterms.sort()
+        for nonterm in nonterms:
+            debuglog.info('%-20s : %s', nonterm, ' '.join([str(s) for s in grammar.Nonterminals[nonterm]]))
+        debuglog.info('')
+
+    if check_recursion:
+        unreachable = grammar.find_unreachable()
+        for u in unreachable:
+            errorlog.warning('Symbol %r is unreachable', u)
+
+        infinite = grammar.infinite_cycles()
+        for inf in infinite:
+            errorlog.error('Infinite recursion detected for symbol %r', inf)
+            errors = True
+
+    unused_prec = grammar.unused_precedence()
+    for term, assoc in unused_prec:
+        errorlog.error('Precedence rule %r defined for unknown symbol %r', assoc, term)
+        errors = True
+
+    if errors:
+        raise YaccError('Unable to build parser')
+
+    # Run the LRGeneratedTable on the grammar
+    if debug:
+        errorlog.debug('Generating %s tables', method)
+
+    lr = LRGeneratedTable(grammar, method, debuglog)
+
+    if debug:
+        num_sr = len(lr.sr_conflicts)
+
+        # Report shift/reduce and reduce/reduce conflicts
+        if num_sr == 1:
+            errorlog.warning('1 shift/reduce conflict')
+        elif num_sr > 1:
+            errorlog.warning('%d shift/reduce conflicts', num_sr)
+
+        num_rr = len(lr.rr_conflicts)
+        if num_rr == 1:
+            errorlog.warning('1 reduce/reduce conflict')
+        elif num_rr > 1:
+            errorlog.warning('%d reduce/reduce conflicts', num_rr)
+
+    # Write out conflicts to the output file
+    if debug and (lr.sr_conflicts or lr.rr_conflicts):
+        debuglog.warning('')
+        debuglog.warning('Conflicts:')
+        debuglog.warning('')
+
+        for state, tok, resolution in lr.sr_conflicts:
+            debuglog.warning('shift/reduce conflict for %s in state %d resolved as %s',  tok, state, resolution)
+
+        already_reported = set()
+        for state, rule, rejected in lr.rr_conflicts:
+            if (state, id(rule), id(rejected)) in already_reported:
+                continue
+            debuglog.warning('reduce/reduce conflict in state %d resolved using rule (%s)', state, rule)
+            debuglog.warning('rejected rule (%s) in state %d', rejected, state)
+            errorlog.warning('reduce/reduce conflict in state %d resolved using rule (%s)', state, rule)
+            errorlog.warning('rejected rule (%s) in state %d', rejected, state)
+            already_reported.add((state, id(rule), id(rejected)))
+
+        warned_never = []
+        for state, rule, rejected in lr.rr_conflicts:
+            if not rejected.reduced and (rejected not in warned_never):
+                debuglog.warning('Rule (%s) is never reduced', rejected)
+                errorlog.warning('Rule (%s) is never reduced', rejected)
+                warned_never.append(rejected)
+
+    # Write the table file if requested
+    if write_tables:
+        try:
+            lr.write_table(tabmodule, outputdir, signature)
+        except IOError as e:
+            errorlog.warning("Couldn't create %r. %s" % (tabmodule, e))
+
+    # Write a pickled version of the tables
+    if picklefile:
+        try:
+            lr.pickle_table(picklefile, signature)
+        except IOError as e:
+            errorlog.warning("Couldn't create %r. %s" % (picklefile, e))
+
+    # Build the parser
+    lr.bind_callables(pinfo.pdict)
+    parser = LRParser(lr, pinfo.error_func)
+
+    parse = parser.parse
+    return parser
diff --git a/venv/lib/python3.5/site-packages/pycparser/ply/ygen.py b/venv/lib/python3.5/site-packages/pycparser/ply/ygen.py
new file mode 100644
index 0000000..acf5ca1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/ply/ygen.py
@@ -0,0 +1,74 @@
+# ply: ygen.py
+#
+# This is a support program that auto-generates different versions of the YACC parsing
+# function with different features removed for the purposes of performance.
+#
+# Users should edit the method LParser.parsedebug() in yacc.py.   The source code 
+# for that method is then used to create the other methods.   See the comments in
+# yacc.py for further details.
+
+import os.path
+import shutil
+
+def get_source_range(lines, tag):
+    srclines = enumerate(lines)
+    start_tag = '#--! %s-start' % tag
+    end_tag = '#--! %s-end' % tag
+
+    for start_index, line in srclines:
+        if line.strip().startswith(start_tag):
+            break
+
+    for end_index, line in srclines:
+        if line.strip().endswith(end_tag):
+            break
+
+    return (start_index + 1, end_index)
+
+def filter_section(lines, tag):
+    filtered_lines = []
+    include = True
+    tag_text = '#--! %s' % tag
+    for line in lines:
+        if line.strip().startswith(tag_text):
+            include = not include
+        elif include:
+            filtered_lines.append(line)
+    return filtered_lines
+
+def main():
+    dirname = os.path.dirname(__file__)
+    shutil.copy2(os.path.join(dirname, 'yacc.py'), os.path.join(dirname, 'yacc.py.bak'))
+    with open(os.path.join(dirname, 'yacc.py'), 'r') as f:
+        lines = f.readlines()
+
+    parse_start, parse_end = get_source_range(lines, 'parsedebug')
+    parseopt_start, parseopt_end = get_source_range(lines, 'parseopt')
+    parseopt_notrack_start, parseopt_notrack_end = get_source_range(lines, 'parseopt-notrack')
+
+    # Get the original source
+    orig_lines = lines[parse_start:parse_end]
+
+    # Filter the DEBUG sections out
+    parseopt_lines = filter_section(orig_lines, 'DEBUG')
+
+    # Filter the TRACKING sections out
+    parseopt_notrack_lines = filter_section(parseopt_lines, 'TRACKING')
+
+    # Replace the parser source sections with updated versions
+    lines[parseopt_notrack_start:parseopt_notrack_end] = parseopt_notrack_lines
+    lines[parseopt_start:parseopt_end] = parseopt_lines
+
+    lines = [line.rstrip()+'\n' for line in lines]
+    with open(os.path.join(dirname, 'yacc.py'), 'w') as f:
+        f.writelines(lines)
+
+    print('Updated yacc.py')
+
+if __name__ == '__main__':
+    main()
+
+
+
+
+
diff --git a/venv/lib/python3.5/site-packages/pycparser/plyparser.py b/venv/lib/python3.5/site-packages/pycparser/plyparser.py
new file mode 100644
index 0000000..af91922
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/plyparser.py
@@ -0,0 +1,116 @@
+#-----------------------------------------------------------------
+# plyparser.py
+#
+# PLYParser class and other utilites for simplifying programming
+# parsers with PLY
+#
+# Eli Bendersky [http://eli.thegreenplace.net]
+# License: BSD
+#-----------------------------------------------------------------
+
+
+class Coord(object):
+    """ Coordinates of a syntactic element. Consists of:
+            - File name
+            - Line number
+            - (optional) column number, for the Lexer
+    """
+    __slots__ = ('file', 'line', 'column', '__weakref__')
+    def __init__(self, file, line, column=None):
+        self.file = file
+        self.line = line
+        self.column = column
+
+    def __str__(self):
+        str = "%s:%s" % (self.file, self.line)
+        if self.column: str += ":%s" % self.column
+        return str
+
+
+class ParseError(Exception): pass
+
+
+class PLYParser(object):
+    def _create_opt_rule(self, rulename):
+        """ Given a rule name, creates an optional ply.yacc rule
+            for it. The name of the optional rule is
+            <rulename>_opt
+        """
+        optname = rulename + '_opt'
+
+        def optrule(self, p):
+            p[0] = p[1]
+
+        optrule.__doc__ = '%s : empty\n| %s' % (optname, rulename)
+        optrule.__name__ = 'p_%s' % optname
+        setattr(self.__class__, optrule.__name__, optrule)
+
+    def _coord(self, lineno, column=None):
+        return Coord(
+                file=self.clex.filename,
+                line=lineno,
+                column=column)
+
+    def _token_coord(self, p, token_idx):
+        """ Returns the coordinates for the YaccProduction objet 'p' indexed
+            with 'token_idx'. The coordinate includes the 'lineno' and
+            'column'. Both follow the lex semantic, starting from 1.
+        """
+        last_cr = p.lexer.lexer.lexdata.rfind('\n', 0, p.lexpos(token_idx))
+        if last_cr < 0:
+            last_cr = -1
+        column = (p.lexpos(token_idx) - (last_cr))
+        return self._coord(p.lineno(token_idx), column)
+
+    def _parse_error(self, msg, coord):
+        raise ParseError("%s: %s" % (coord, msg))
+
+
+def parameterized(*params):
+    """ Decorator to create parameterized rules.
+
+    Parameterized rule methods must be named starting with 'p_' and contain
+    'xxx', and their docstrings may contain 'xxx' and 'yyy'. These will be
+    replaced by the given parameter tuples. For example, ``p_xxx_rule()`` with
+    docstring 'xxx_rule  : yyy' when decorated with
+    ``@parameterized(('id', 'ID'))`` produces ``p_id_rule()`` with the docstring
+    'id_rule  : ID'. Using multiple tuples produces multiple rules.
+    """
+    def decorate(rule_func):
+        rule_func._params = params
+        return rule_func
+    return decorate
+
+
+def template(cls):
+    """ Class decorator to generate rules from parameterized rule templates.
+
+    See `parameterized` for more information on parameterized rules.
+    """
+    for attr_name in dir(cls):
+        if attr_name.startswith('p_'):
+            method = getattr(cls, attr_name)
+            if hasattr(method, '_params'):
+                delattr(cls, attr_name)  # Remove template method
+                _create_param_rules(cls, method)
+    return cls
+
+
+def _create_param_rules(cls, func):
+    """ Create ply.yacc rules based on a parameterized rule function
+
+    Generates new methods (one per each pair of parameters) based on the
+    template rule function `func`, and attaches them to `cls`. The rule
+    function's parameters must be accessible via its `_params` attribute.
+    """
+    for xxx, yyy in func._params:
+        # Use the template method's body for each new method
+        def param_rule(self, p):
+            func(self, p)
+
+        # Substitute in the params for the grammar rule and function name
+        param_rule.__doc__ = func.__doc__.replace('xxx', xxx).replace('yyy', yyy)
+        param_rule.__name__ = func.__name__.replace('xxx', xxx)
+
+        # Attach the new method to the class
+        setattr(cls, param_rule.__name__, param_rule)
diff --git a/venv/lib/python3.5/site-packages/pycparser/yacctab.py b/venv/lib/python3.5/site-packages/pycparser/yacctab.py
new file mode 100644
index 0000000..a244322
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/pycparser/yacctab.py
@@ -0,0 +1,332 @@
+
+# yacctab.py
+# This file is automatically generated. Do not edit.
+_tabversion = '3.10'
+
+_lr_method = 'LALR'
+
+_lr_signature = 'translation_unit_or_emptyleftLORleftLANDleftORleftXORleftANDleftEQNEleftGTGELTLEleftRSHIFTLSHIFTleftPLUSMINUSleftTIMESDIVIDEMOD_BOOL _COMPLEX AUTO BREAK CASE CHAR CONST CONTINUE DEFAULT DO DOUBLE ELSE ENUM EXTERN FLOAT FOR GOTO IF INLINE INT LONG REGISTER OFFSETOF RESTRICT RETURN SHORT SIGNED SIZEOF STATIC STRUCT SWITCH TYPEDEF UNION UNSIGNED VOID VOLATILE WHILE __INT128 ID TYPEID INT_CONST_DEC INT_CONST_OCT INT_CONST_HEX INT_CONST_BIN FLOAT_CONST HEX_FLOAT_CONST CHAR_CONST WCHAR_CONST STRING_LITERAL WSTRING_LITERAL PLUS MINUS TIMES DIVIDE MOD OR AND NOT XOR LSHIFT RSHIFT LOR LAND LNOT LT LE GT GE EQ NE EQUALS TIMESEQUAL DIVEQUAL MODEQUAL PLUSEQUAL MINUSEQUAL LSHIFTEQUAL RSHIFTEQUAL ANDEQUAL XOREQUAL OREQUAL PLUSPLUS MINUSMINUS ARROW CONDOP LPAREN RPAREN LBRACKET RBRACKET LBRACE RBRACE COMMA PERIOD SEMI COLON ELLIPSIS PPHASH PPPRAGMA PPPRAGMASTRabstract_declarator_opt : empty\n| abstract_declaratorassignment_expression_opt : empty\n| assignment_expressionblock_item_list_opt : empty\n| block_item_listdeclaration_list_opt : empty\n| declaration_listdeclaration_specifiers_no_type_opt : empty\n| declaration_specifiers_no_typedesignation_opt : empty\n| designationexpression_opt : empty\n| expressionid_init_declarator_list_opt : empty\n| id_init_declarator_listidentifier_list_opt : empty\n| identifier_listinit_declarator_list_opt : empty\n| init_declarator_listinitializer_list_opt : empty\n| initializer_listparameter_type_list_opt : empty\n| parameter_type_liststruct_declarator_list_opt : empty\n| struct_declarator_listtype_qualifier_list_opt : empty\n| type_qualifier_list direct_id_declarator   : ID\n         direct_id_declarator   : LPAREN id_declarator RPAREN\n         direct_id_declarator   : direct_id_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET\n         direct_id_declarator   : direct_id_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET\n                                    | direct_id_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET\n         direct_id_declarator   : direct_id_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET\n         direct_id_declarator   : direct_id_declarator LPAREN parameter_type_list RPAREN\n                                    | direct_id_declarator LPAREN identifier_list_opt RPAREN\n         direct_typeid_declarator   : TYPEID\n         direct_typeid_declarator   : LPAREN typeid_declarator RPAREN\n         direct_typeid_declarator   : direct_typeid_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET\n         direct_typeid_declarator   : direct_typeid_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET\n                                    | direct_typeid_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET\n         direct_typeid_declarator   : direct_typeid_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET\n         direct_typeid_declarator   : direct_typeid_declarator LPAREN parameter_type_list RPAREN\n                                    | direct_typeid_declarator LPAREN identifier_list_opt RPAREN\n         direct_typeid_noparen_declarator   : TYPEID\n         direct_typeid_noparen_declarator   : direct_typeid_noparen_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET\n         direct_typeid_noparen_declarator   : direct_typeid_noparen_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET\n                                    | direct_typeid_noparen_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET\n         direct_typeid_noparen_declarator   : direct_typeid_noparen_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET\n         direct_typeid_noparen_declarator   : direct_typeid_noparen_declarator LPAREN parameter_type_list RPAREN\n                                    | direct_typeid_noparen_declarator LPAREN identifier_list_opt RPAREN\n         id_declarator  : direct_id_declarator\n         id_declarator  : pointer direct_id_declarator\n         typeid_declarator  : direct_typeid_declarator\n         typeid_declarator  : pointer direct_typeid_declarator\n         typeid_noparen_declarator  : direct_typeid_noparen_declarator\n         typeid_noparen_declarator  : pointer direct_typeid_noparen_declarator\n         translation_unit_or_empty   : translation_unit\n                                        | empty\n         translation_unit    : external_declaration\n         translation_unit    : translation_unit external_declaration\n         external_declaration    : function_definition\n         external_declaration    : declaration\n         external_declaration    : pp_directive\n                                    | pppragma_directive\n         external_declaration    : SEMI\n         pp_directive  : PPHASH\n         pppragma_directive      : PPPRAGMA\n                                    | PPPRAGMA PPPRAGMASTR\n         function_definition : id_declarator declaration_list_opt compound_statement\n         function_definition : declaration_specifiers id_declarator declaration_list_opt compound_statement\n         statement   : labeled_statement\n                        | expression_statement\n                        | compound_statement\n                        | selection_statement\n                        | iteration_statement\n                        | jump_statement\n                        | pppragma_directive\n         decl_body : declaration_specifiers init_declarator_list_opt\n                      | declaration_specifiers_no_type id_init_declarator_list_opt\n         declaration : decl_body SEMI\n         declaration_list    : declaration\n                                | declaration_list declaration\n         declaration_specifiers_no_type  : type_qualifier declaration_specifiers_no_type_opt\n         declaration_specifiers_no_type  : storage_class_specifier declaration_specifiers_no_type_opt\n         declaration_specifiers_no_type  : function_specifier declaration_specifiers_no_type_opt\n         declaration_specifiers  : declaration_specifiers type_qualifier\n         declaration_specifiers  : declaration_specifiers storage_class_specifier\n         declaration_specifiers  : declaration_specifiers function_specifier\n         declaration_specifiers  : declaration_specifiers type_specifier_no_typeid\n         declaration_specifiers  : type_specifier\n         declaration_specifiers  : declaration_specifiers_no_type type_specifier\n         storage_class_specifier : AUTO\n                                    | REGISTER\n                                    | STATIC\n                                    | EXTERN\n                                    | TYPEDEF\n         function_specifier  : INLINE\n         type_specifier_no_typeid  : VOID\n                                      | _BOOL\n                                      | CHAR\n                                      | SHORT\n                                      | INT\n                                      | LONG\n                                      | FLOAT\n                                      | DOUBLE\n                                      | _COMPLEX\n                                      | SIGNED\n                                      | UNSIGNED\n                                      | __INT128\n         type_specifier  : typedef_name\n                            | enum_specifier\n                            | struct_or_union_specifier\n                            | type_specifier_no_typeid\n         type_qualifier  : CONST\n                            | RESTRICT\n                            | VOLATILE\n         init_declarator_list    : init_declarator\n                                    | init_declarator_list COMMA init_declarator\n         init_declarator : declarator\n                            | declarator EQUALS initializer\n         id_init_declarator_list    : id_init_declarator\n                                       | id_init_declarator_list COMMA init_declarator\n         id_init_declarator : id_declarator\n                               | id_declarator EQUALS initializer\n         specifier_qualifier_list    : specifier_qualifier_list type_specifier_no_typeid\n         specifier_qualifier_list    : specifier_qualifier_list type_qualifier\n         specifier_qualifier_list  : type_specifier\n         specifier_qualifier_list  : type_qualifier_list type_specifier\n         struct_or_union_specifier   : struct_or_union ID\n                                        | struct_or_union TYPEID\n         struct_or_union_specifier : struct_or_union brace_open struct_declaration_list brace_close\n         struct_or_union_specifier   : struct_or_union ID brace_open struct_declaration_list brace_close\n                                        | struct_or_union TYPEID brace_open struct_declaration_list brace_close\n         struct_or_union : STRUCT\n                            | UNION\n         struct_declaration_list     : struct_declaration\n                                        | struct_declaration_list struct_declaration\n         struct_declaration : specifier_qualifier_list struct_declarator_list_opt SEMI\n         struct_declaration : SEMI\n         struct_declarator_list  : struct_declarator\n                                    | struct_declarator_list COMMA struct_declarator\n         struct_declarator : declarator\n         struct_declarator   : declarator COLON constant_expression\n                                | COLON constant_expression\n         enum_specifier  : ENUM ID\n                            | ENUM TYPEID\n         enum_specifier  : ENUM brace_open enumerator_list brace_close\n         enum_specifier  : ENUM ID brace_open enumerator_list brace_close\n                            | ENUM TYPEID brace_open enumerator_list brace_close\n         enumerator_list : enumerator\n                            | enumerator_list COMMA\n                            | enumerator_list COMMA enumerator\n         enumerator  : ID\n                        | ID EQUALS constant_expression\n         declarator  : id_declarator\n                        | typeid_declarator\n         pointer : TIMES type_qualifier_list_opt\n                    | TIMES type_qualifier_list_opt pointer\n         type_qualifier_list : type_qualifier\n                                | type_qualifier_list type_qualifier\n         parameter_type_list : parameter_list\n                                | parameter_list COMMA ELLIPSIS\n         parameter_list  : parameter_declaration\n                            | parameter_list COMMA parameter_declaration\n         parameter_declaration   : declaration_specifiers id_declarator\n                                    | declaration_specifiers typeid_noparen_declarator\n         parameter_declaration   : declaration_specifiers abstract_declarator_opt\n         identifier_list : identifier\n                            | identifier_list COMMA identifier\n         initializer : assignment_expression\n         initializer : brace_open initializer_list_opt brace_close\n                        | brace_open initializer_list COMMA brace_close\n         initializer_list    : designation_opt initializer\n                                | initializer_list COMMA designation_opt initializer\n         designation : designator_list EQUALS\n         designator_list : designator\n                            | designator_list designator\n         designator  : LBRACKET constant_expression RBRACKET\n                        | PERIOD identifier\n         type_name   : specifier_qualifier_list abstract_declarator_opt\n         abstract_declarator     : pointer\n         abstract_declarator     : pointer direct_abstract_declarator\n         abstract_declarator     : direct_abstract_declarator\n         direct_abstract_declarator  : LPAREN abstract_declarator RPAREN  direct_abstract_declarator  : direct_abstract_declarator LBRACKET assignment_expression_opt RBRACKET\n         direct_abstract_declarator  : LBRACKET assignment_expression_opt RBRACKET\n         direct_abstract_declarator  : direct_abstract_declarator LBRACKET TIMES RBRACKET\n         direct_abstract_declarator  : LBRACKET TIMES RBRACKET\n         direct_abstract_declarator  : direct_abstract_declarator LPAREN parameter_type_list_opt RPAREN\n         direct_abstract_declarator  : LPAREN parameter_type_list_opt RPAREN\n         block_item  : declaration\n                        | statement\n         block_item_list : block_item\n                            | block_item_list block_item\n         compound_statement : brace_open block_item_list_opt brace_close  labeled_statement : ID COLON statement  labeled_statement : CASE constant_expression COLON statement  labeled_statement : DEFAULT COLON statement  selection_statement : IF LPAREN expression RPAREN statement  selection_statement : IF LPAREN expression RPAREN statement ELSE statement  selection_statement : SWITCH LPAREN expression RPAREN statement  iteration_statement : WHILE LPAREN expression RPAREN statement  iteration_statement : DO statement WHILE LPAREN expression RPAREN SEMI  iteration_statement : FOR LPAREN expression_opt SEMI expression_opt SEMI expression_opt RPAREN statement  iteration_statement : FOR LPAREN declaration expression_opt SEMI expression_opt RPAREN statement  jump_statement  : GOTO ID SEMI  jump_statement  : BREAK SEMI  jump_statement  : CONTINUE SEMI  jump_statement  : RETURN expression SEMI\n                            | RETURN SEMI\n         expression_statement : expression_opt SEMI  expression  : assignment_expression\n                        | expression COMMA assignment_expression\n         typedef_name : TYPEID  assignment_expression   : conditional_expression\n                                    | unary_expression assignment_operator assignment_expression\n         assignment_operator : EQUALS\n                                | XOREQUAL\n                                | TIMESEQUAL\n                                | DIVEQUAL\n                                | MODEQUAL\n                                | PLUSEQUAL\n                                | MINUSEQUAL\n                                | LSHIFTEQUAL\n                                | RSHIFTEQUAL\n                                | ANDEQUAL\n                                | OREQUAL\n         constant_expression : conditional_expression  conditional_expression  : binary_expression\n                                    | binary_expression CONDOP expression COLON conditional_expression\n         binary_expression   : cast_expression\n                                | binary_expression TIMES binary_expression\n                                | binary_expression DIVIDE binary_expression\n                                | binary_expression MOD binary_expression\n                                | binary_expression PLUS binary_expression\n                                | binary_expression MINUS binary_expression\n                                | binary_expression RSHIFT binary_expression\n                                | binary_expression LSHIFT binary_expression\n                                | binary_expression LT binary_expression\n                                | binary_expression LE binary_expression\n                                | binary_expression GE binary_expression\n                                | binary_expression GT binary_expression\n                                | binary_expression EQ binary_expression\n                                | binary_expression NE binary_expression\n                                | binary_expression AND binary_expression\n                                | binary_expression OR binary_expression\n                                | binary_expression XOR binary_expression\n                                | binary_expression LAND binary_expression\n                                | binary_expression LOR binary_expression\n         cast_expression : unary_expression  cast_expression : LPAREN type_name RPAREN cast_expression  unary_expression    : postfix_expression  unary_expression    : PLUSPLUS unary_expression\n                                | MINUSMINUS unary_expression\n                                | unary_operator cast_expression\n         unary_expression    : SIZEOF unary_expression\n                                | SIZEOF LPAREN type_name RPAREN\n         unary_operator  : AND\n                            | TIMES\n                            | PLUS\n                            | MINUS\n                            | NOT\n                            | LNOT\n         postfix_expression  : primary_expression  postfix_expression  : postfix_expression LBRACKET expression RBRACKET  postfix_expression  : postfix_expression LPAREN argument_expression_list RPAREN\n                                | postfix_expression LPAREN RPAREN\n         postfix_expression  : postfix_expression PERIOD ID\n                                | postfix_expression PERIOD TYPEID\n                                | postfix_expression ARROW ID\n                                | postfix_expression ARROW TYPEID\n         postfix_expression  : postfix_expression PLUSPLUS\n                                | postfix_expression MINUSMINUS\n         postfix_expression  : LPAREN type_name RPAREN brace_open initializer_list brace_close\n                                | LPAREN type_name RPAREN brace_open initializer_list COMMA brace_close\n         primary_expression  : identifier  primary_expression  : constant  primary_expression  : unified_string_literal\n                                | unified_wstring_literal\n         primary_expression  : LPAREN expression RPAREN  primary_expression  : OFFSETOF LPAREN type_name COMMA offsetof_member_designator RPAREN\n         offsetof_member_designator : identifier\n                                         | offsetof_member_designator PERIOD identifier\n                                         | offsetof_member_designator LBRACKET expression RBRACKET\n         argument_expression_list    : assignment_expression\n                                        | argument_expression_list COMMA assignment_expression\n         identifier  : ID  constant    : INT_CONST_DEC\n                        | INT_CONST_OCT\n                        | INT_CONST_HEX\n                        | INT_CONST_BIN\n         constant    : FLOAT_CONST\n                        | HEX_FLOAT_CONST\n         constant    : CHAR_CONST\n                        | WCHAR_CONST\n         unified_string_literal  : STRING_LITERAL\n                                    | unified_string_literal STRING_LITERAL\n         unified_wstring_literal : WSTRING_LITERAL\n                                    | unified_wstring_literal WSTRING_LITERAL\n         brace_open  :   LBRACE\n         brace_close :   RBRACE\n        empty : '
+    
+_lr_action_items = {'VOID':([0,1,2,3,5,6,7,8,9,10,11,12,14,15,16,17,18,19,20,21,23,24,25,26,29,30,32,33,34,35,36,37,39,40,41,42,44,45,47,48,49,50,51,53,54,55,56,57,60,61,63,64,65,67,68,69,70,71,72,73,74,78,80,83,87,91,92,96,101,102,103,104,105,113,117,120,121,122,123,124,125,126,127,128,129,130,136,142,170,184,185,186,198,199,200,203,205,212,214,215,216,217,219,222,228,229,230,231,232,233,234,240,245,254,273,282,283,284,287,289,292,323,327,332,333,335,336,342,345,347,350,351,354,356,357,392,412,413,426,427,431,436,473,494,495,497,515,516,519,520,],[6,-303,-102,-115,-113,-99,-97,-52,-95,-114,-96,-64,-60,-100,-91,-66,6,-94,-109,-104,-65,-93,-110,6,-215,-107,-111,6,-63,-116,6,-29,-105,-62,-101,-67,-112,-106,-303,-108,-303,-103,-117,-68,-98,-85,-10,-9,6,-53,6,-82,6,6,-61,-131,-301,-130,6,-147,-146,-160,-88,-90,6,-87,-89,-92,-81,-84,-86,-69,-30,6,6,-70,6,-83,6,6,-128,-140,-137,6,6,6,-161,6,6,-36,-35,6,6,-73,-76,-72,-74,6,-78,-193,-192,-77,-194,-75,6,6,-129,-132,-138,-302,-126,-127,-148,-71,6,-31,6,6,6,-34,6,6,6,-212,-211,6,-209,-195,-208,-196,-134,-133,-139,-150,-149,6,-33,-32,-207,-210,-199,-197,-198,-203,-202,-200,-204,-201,-206,-205,]),'LBRACKET':([2,3,5,6,7,8,9,10,11,15,16,19,20,21,24,25,29,30,31,32,35,37,39,41,44,45,48,50,51,54,61,69,70,71,73,74,76,77,78,79,80,83,85,88,91,92,96,105,113,115,125,136,137,140,147,150,151,152,153,154,155,158,159,167,169,172,174,175,177,178,184,185,186,189,190,193,196,226,230,231,233,234,240,245,247,256,272,275,276,278,282,289,292,315,320,321,350,351,356,357,364,365,368,373,377,378,379,380,383,388,391,392,412,413,414,415,421,422,440,441,445,447,449,452,453,459,465,466,467,468,469,477,478,479,484,485,488,489,499,502,503,504,505,510,512,517,],[-102,-115,-113,-99,-97,59,-95,-114,-96,-100,-91,-94,-109,-104,-93,-110,-215,-107,-303,-111,-116,-29,-105,-101,-112,-106,-108,-103,-117,-98,59,-131,-301,-130,-147,-146,-28,-158,-160,-27,-88,-90,141,-37,-87,-89,-92,-30,195,-288,-128,-161,-159,141,-292,-280,-295,-299,-296,-293,-278,-279,280,-291,-265,-297,-289,-277,-294,-290,-36,-35,195,195,322,-45,326,-288,-129,-132,-302,-126,-127,-148,-38,370,-300,-298,-274,-273,-31,-34,195,195,322,326,-134,-133,-150,-149,-44,-43,-177,370,-272,-271,-270,-269,-268,-281,195,195,-33,-32,-191,-185,-187,-189,-39,-42,-180,370,-178,-266,-267,370,-51,-50,-186,-188,-190,-41,-40,-179,501,-283,-46,-49,-282,370,-275,-48,-47,-284,-276,-285,]),'WCHAR_CONST':([3,35,51,53,59,70,76,78,79,101,104,106,107,108,121,136,141,144,145,148,156,157,163,164,166,168,170,171,173,181,182,183,195,199,200,203,204,205,211,212,214,215,216,217,219,221,222,225,233,235,246,249,250,251,256,260,261,262,263,264,265,266,267,268,269,270,271,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,322,325,326,332,333,335,336,337,338,339,342,344,345,347,348,349,355,361,362,363,366,370,372,374,389,416,417,418,424,426,427,429,431,433,436,447,450,454,456,459,460,462,463,464,470,472,473,474,475,476,480,481,493,494,495,497,501,502,506,509,514,515,516,518,519,520,],[-115,-116,-117,-68,-303,-301,-28,-160,-27,-81,-69,153,-28,-303,153,-161,-303,153,153,-264,153,-262,153,-261,153,-260,153,153,-259,-263,153,153,153,-73,-76,-72,153,-74,153,153,-78,-193,-192,-77,-194,153,-75,-260,-302,153,153,153,-28,-303,-303,-221,-224,-222,-218,-219,-223,-225,153,-227,-228,-220,-226,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,153,-303,-260,153,-212,-211,153,-209,153,153,153,-195,153,-208,-196,153,153,153,-260,153,153,-12,153,153,-11,153,153,-28,-303,-260,-207,-210,153,-199,153,-197,-303,-176,153,153,-303,153,-260,153,153,153,153,-198,153,153,153,153,-11,153,-203,-202,-200,153,-303,153,153,153,-204,-201,153,-206,-205,]),'FLOAT_CONST':([3,35,51,53,59,70,76,78,79,101,104,106,107,108,121,136,141,144,145,148,156,157,163,164,166,168,170,171,173,181,182,183,195,199,200,203,204,205,211,212,214,215,216,217,219,221,222,225,233,235,246,249,250,251,256,260,261,262,263,264,265,266,267,268,269,270,271,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,322,325,326,332,333,335,336,337,338,339,342,344,345,347,348,349,355,361,362,363,366,370,372,374,389,416,417,418,424,426,427,429,431,433,436,447,450,454,456,459,460,462,463,464,470,472,473,474,475,476,480,481,493,494,495,497,501,502,506,509,514,515,516,518,519,520,],[-115,-116,-117,-68,-303,-301,-28,-160,-27,-81,-69,154,-28,-303,154,-161,-303,154,154,-264,154,-262,154,-261,154,-260,154,154,-259,-263,154,154,154,-73,-76,-72,154,-74,154,154,-78,-193,-192,-77,-194,154,-75,-260,-302,154,154,154,-28,-303,-303,-221,-224,-222,-218,-219,-223,-225,154,-227,-228,-220,-226,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,154,-303,-260,154,-212,-211,154,-209,154,154,154,-195,154,-208,-196,154,154,154,-260,154,154,-12,154,154,-11,154,154,-28,-303,-260,-207,-210,154,-199,154,-197,-303,-176,154,154,-303,154,-260,154,154,154,154,-198,154,154,154,154,-11,154,-203,-202,-200,154,-303,154,154,154,-204,-201,154,-206,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+
+_lr_action = {}
+for _k, _v in _lr_action_items.items():
+   for _x,_y in zip(_v[0],_v[1]):
+      if not _x in _lr_action:  _lr_action[_x] = {}
+      _lr_action[_x][_k] = _y
+del _lr_action_items
+
+_lr_goto_items = {'expression_statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[199,199,199,199,199,199,199,199,199,199,199,199,]),'struct_or_union_specifier':([0,18,26,36,60,65,67,72,87,117,121,123,124,128,129,142,170,186,198,212,228,229,273,283,284,287,323,327,335,392,],[5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,]),'init_declarator_list':([33,63,],[82,82,]),'init_declarator_list_opt':([33,63,],[90,90,]),'iteration_statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[200,200,200,200,200,200,200,200,200,200,200,200,]),'unified_string_literal':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,158,]),'assignment_expression_opt':([106,195,249,326,416,],[160,324,360,423,461,]),'brace_open':([27,28,66,69,71,73,74,121,143,144,145,212,221,338,348,372,389,433,451,456,457,472,474,476,480,509,514,518,],[72,75,121,123,124,131,132,121,121,256,256,121,121,121,121,256,459,121,459,459,459,121,121,121,256,121,121,121,]),'enumerator':([75,131,132,244,],[133,133,133,358,]),'typeid_noparen_declarator':([113,],[194,]),'type_qualifier_list_opt':([31,59,108,141,251,322,418,],[77,106,183,249,363,416,464,]),'declaration_specifiers_no_type_opt':([1,47,49,],[55,102,103,]),'expression_opt':([121,212,221,335,338,348,429,433,470,472,474,476,493,506,509,514,518,],[202,202,202,428,202,202,471,202,492,202,202,202,507,513,202,202,202,]),'designation':([256,447,459,502,],[366,366,366,366,]),'parameter_list':([60,142,186,323,327,392,],[116,116,116,116,116,116,]),'labeled_statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[203,203,203,203,203,203,203,203,203,203,203,203,]),'abstract_declarator':([113,186,292,392,],[188,319,188,319,]),'translation_unit':([0,],[26,]),'init_declarator':([33,63,139,146,],[94,94,248,259,]),'direct_abstract_declarator':([113,186,189,292,315,391,392,],[196,196,321,196,321,321,196,]),'designator_list':([256,447,459,502,],[373,373,373,373,]),'identifier':([60,106,121,142,144,145,156,163,166,170,171,182,183,195,197,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,323,326,335,337,338,339,344,348,349,355,362,363,369,370,372,389,416,429,433,454,455,456,460,463,464,470,472,474,475,476,480,493,500,501,506,509,514,518,],[118,175,175,118,175,175,175,175,175,175,175,175,175,175,328,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,175,118,175,175,175,175,175,175,175,175,175,175,175,445,175,175,175,175,175,175,175,485,175,175,175,175,175,175,175,175,175,175,175,510,175,175,175,175,175,]),'offsetof_member_designator':([455,],[484,]),'unary_expression':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[149,149,149,149,274,285,288,149,293,149,149,149,149,285,149,149,285,285,149,149,149,149,149,149,149,285,285,285,285,285,285,285,285,285,285,285,285,285,285,285,285,149,285,285,149,149,149,149,149,149,149,149,285,149,149,285,149,285,149,149,149,149,285,285,149,149,149,149,149,149,149,149,149,149,149,149,149,149,]),'abstract_declarator_opt':([113,292,],[187,390,]),'initializer':([144,145,372,480,],[255,258,448,498,]),'direct_id_declarator':([0,4,13,26,33,36,63,65,81,84,113,130,139,146,186,189,315,353,],[8,8,61,8,8,8,8,8,8,61,8,8,8,8,8,61,61,8,]),'struct_declaration_list':([72,123,124,],[129,228,229,]),'pp_directive':([0,26,],[12,12,]),'declaration_list':([18,87,],[67,67,]),'id_init_declarator':([36,65,],[95,95,]),'type_specifier':([0,18,26,36,60,65,67,72,87,117,121,123,124,128,129,142,170,186,198,212,228,229,273,283,284,287,323,327,335,392,],[16,16,16,96,16,96,16,125,16,96,16,125,125,230,125,16,125,16,16,16,125,125,125,125,125,125,16,16,16,16,]),'compound_statement':([66,121,143,212,221,338,348,433,472,474,476,509,514,518,],[120,205,254,205,205,205,205,205,205,205,205,205,205,205,]),'pointer':([0,4,26,33,36,63,65,77,81,113,130,139,146,186,292,353,392,],[13,13,13,84,13,84,13,137,84,189,84,84,84,315,391,84,391,]),'typeid_declarator':([33,63,81,130,139,146,353,],[86,86,138,86,86,86,86,]),'id_init_declarator_list':([36,65,],[98,98,]),'declarator':([33,63,130,139,146,353,],[89,89,241,89,89,241,]),'argument_expression_list':([281,],[384,]),'struct_declarator_list_opt':([130,],[238,]),'typedef_name':([0,18,26,36,60,65,67,72,87,117,121,123,124,128,129,142,170,186,198,212,228,229,273,283,284,287,323,327,335,392,],[32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,]),'parameter_type_list_opt':([186,327,392,],[318,425,318,]),'struct_declarator':([130,353,],[239,438,]),'type_qualifier':([0,1,18,26,31,33,47,49,59,60,63,67,72,76,87,107,108,113,121,123,124,128,129,130,141,142,170,186,198,212,228,229,250,251,273,283,284,287,292,322,323,327,335,392,417,418,],[47,47,47,47,78,91,47,47,78,47,91,47,78,136,47,136,78,91,47,78,78,136,78,240,78,47,78,47,47,47,78,78,136,78,78,78,78,78,240,78,47,47,47,47,136,78,]),'assignment_operator':([149,],[267,]),'expression':([121,170,204,212,221,273,280,284,287,310,335,338,339,344,348,349,429,433,470,472,474,475,476,493,501,506,509,514,518,],[208,290,334,208,208,290,381,290,290,409,208,208,432,434,208,437,208,208,208,208,208,496,208,208,511,208,208,208,208,]),'storage_class_specifier':([0,1,18,26,33,47,49,60,63,67,87,113,121,142,186,198,212,323,327,335,392,],[1,1,1,1,80,1,1,1,80,1,1,80,1,1,1,1,1,1,1,1,1,]),'unified_wstring_literal':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,150,]),'translation_unit_or_empty':([0,],[43,]),'initializer_list_opt':([256,],[367,]),'brace_close':([129,134,223,228,229,242,243,367,447,486,502,],[231,245,347,350,351,356,357,444,482,503,512,]),'direct_typeid_declarator':([33,63,81,84,130,139,146,353,],[85,85,85,140,85,85,85,85,]),'external_declaration':([0,26,],[14,68,]),'type_name':([170,273,283,284,287,],[291,376,385,386,387,]),'block_item_list':([121,],[212,]),'pppragma_directive':([0,26,121,212,221,338,348,433,472,474,476,509,514,518,],[23,23,214,214,214,214,214,214,214,214,214,214,214,214,]),'statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[215,215,346,431,436,473,494,495,497,516,519,520,]),'cast_expression':([106,121,144,145,163,170,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[161,161,161,161,286,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,458,161,161,161,161,458,161,161,161,161,161,161,161,161,161,161,161,161,161,161,161,]),'struct_declarator_list':([130,],[236,]),'empty':([0,1,18,31,33,36,47,49,59,60,63,65,87,106,108,113,121,130,141,142,186,195,212,221,249,251,256,292,322,323,326,327,335,338,348,392,416,418,429,433,447,459,470,472,474,476,493,502,506,509,514,518,],[52,57,62,79,93,100,57,57,79,110,93,100,62,179,79,192,220,237,79,110,316,179,343,343,179,79,374,192,79,110,179,316,343,343,343,316,179,79,343,343,481,481,343,343,343,343,343,481,343,343,343,343,]),'parameter_declaration':([60,142,186,198,323,327,392,],[112,112,112,330,112,112,112,]),'primary_expression':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,169,]),'declaration':([0,18,26,67,87,121,212,335,],[34,64,34,122,64,216,216,429,]),'declaration_specifiers_no_type':([0,1,18,26,47,49,60,67,87,121,142,186,198,212,323,327,335,392,],[36,56,65,36,56,56,117,65,65,65,117,117,117,65,117,117,65,117,]),'jump_statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[217,217,217,217,217,217,217,217,217,217,217,217,]),'enumerator_list':([75,131,132,],[134,242,243,]),'block_item':([121,212,],[219,342,]),'constant_expression':([211,235,246,355,370,],[340,352,359,439,446,]),'identifier_list_opt':([60,142,323,],[109,252,419,]),'constant':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,155,]),'type_specifier_no_typeid':([0,18,26,33,36,60,63,65,67,72,87,113,117,121,123,124,128,129,130,142,170,186,198,212,228,229,273,283,284,287,292,323,327,335,392,],[10,10,10,83,10,10,83,10,10,10,10,83,10,10,10,10,10,10,234,10,10,10,10,10,10,10,10,10,10,10,234,10,10,10,10,]),'struct_declaration':([72,123,124,129,228,229,],[127,127,127,232,232,232,]),'direct_typeid_noparen_declarator':([113,189,],[190,320,]),'id_declarator':([0,4,26,33,36,63,65,81,113,130,139,146,186,353,],[18,58,18,87,97,119,97,58,191,119,119,119,58,119,]),'selection_statement':([121,212,221,338,348,433,472,474,476,509,514,518,],[222,222,222,222,222,222,222,222,222,222,222,222,]),'postfix_expression':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,159,]),'initializer_list':([256,459,],[371,486,]),'unary_operator':([106,121,144,145,156,163,166,170,171,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,389,416,429,433,454,456,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,163,]),'struct_or_union':([0,18,26,36,60,65,67,72,87,117,121,123,124,128,129,142,170,186,198,212,228,229,273,283,284,287,323,327,335,392,],[27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,27,]),'block_item_list_opt':([121,],[223,]),'assignment_expression':([106,121,144,145,170,182,183,195,204,212,221,249,267,273,280,281,284,287,310,326,335,337,338,339,344,348,349,362,363,372,416,429,433,454,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[165,224,257,257,224,313,314,165,224,224,224,165,375,224,224,382,224,224,224,165,224,430,224,224,224,224,224,442,443,257,165,224,224,483,490,491,224,224,224,224,224,257,224,224,224,224,224,224,]),'designation_opt':([256,447,459,502,],[372,480,372,480,]),'parameter_type_list':([60,142,186,323,327,392,],[111,253,317,420,317,317,]),'type_qualifier_list':([31,59,72,108,123,124,129,141,170,228,229,251,273,283,284,287,322,418,],[76,107,128,76,128,128,128,250,128,128,128,76,128,128,128,128,417,76,]),'designator':([256,373,447,459,502,],[368,449,368,368,368,]),'id_init_declarator_list_opt':([36,65,],[99,99,]),'declaration_specifiers':([0,18,26,60,67,87,121,142,186,198,212,323,327,335,392,],[33,63,33,113,63,63,63,113,113,113,63,113,113,63,113,]),'identifier_list':([60,142,323,],[114,114,114,]),'declaration_list_opt':([18,87,],[66,143,]),'function_definition':([0,26,],[40,40,]),'binary_expression':([106,121,144,145,170,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,294,295,296,297,298,299,300,301,302,303,304,305,306,307,308,309,310,311,312,326,335,337,338,339,344,348,349,355,362,363,370,372,416,429,433,454,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,393,394,395,396,397,398,399,400,401,402,403,404,405,406,407,408,176,410,411,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,176,]),'enum_specifier':([0,18,26,36,60,65,67,72,87,117,121,123,124,128,129,142,170,186,198,212,228,229,273,283,284,287,323,327,335,392,],[44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,44,]),'decl_body':([0,18,26,67,87,121,212,335,],[46,46,46,46,46,46,46,46,]),'function_specifier':([0,1,18,26,33,47,49,60,63,67,87,113,121,142,186,198,212,323,327,335,392,],[49,49,49,49,92,49,49,49,92,49,49,92,49,49,49,49,49,49,49,49,49,]),'specifier_qualifier_list':([72,123,124,129,170,228,229,273,283,284,287,],[130,130,130,130,292,130,130,292,292,292,292,]),'conditional_expression':([106,121,144,145,170,182,183,195,204,211,212,221,235,246,249,267,273,280,281,284,287,310,326,335,337,338,339,344,348,349,355,362,363,370,372,416,429,433,454,460,463,464,470,472,474,475,476,480,493,501,506,509,514,518,],[180,180,180,180,180,180,180,180,180,341,180,180,341,341,180,180,180,180,180,180,180,180,180,180,180,180,180,180,180,180,341,180,180,341,180,180,180,180,180,487,180,180,180,180,180,180,180,180,180,180,180,180,180,180,]),}
+
+_lr_goto = {}
+for _k, _v in _lr_goto_items.items():
+   for _x, _y in zip(_v[0], _v[1]):
+       if not _x in _lr_goto: _lr_goto[_x] = {}
+       _lr_goto[_x][_k] = _y
+del _lr_goto_items
+_lr_productions = [
+  ("S' -> translation_unit_or_empty","S'",1,None,None,None),
+  ('abstract_declarator_opt -> empty','abstract_declarator_opt',1,'p_abstract_declarator_opt','plyparser.py',42),
+  ('abstract_declarator_opt -> abstract_declarator','abstract_declarator_opt',1,'p_abstract_declarator_opt','plyparser.py',43),
+  ('assignment_expression_opt -> empty','assignment_expression_opt',1,'p_assignment_expression_opt','plyparser.py',42),
+  ('assignment_expression_opt -> assignment_expression','assignment_expression_opt',1,'p_assignment_expression_opt','plyparser.py',43),
+  ('block_item_list_opt -> empty','block_item_list_opt',1,'p_block_item_list_opt','plyparser.py',42),
+  ('block_item_list_opt -> block_item_list','block_item_list_opt',1,'p_block_item_list_opt','plyparser.py',43),
+  ('declaration_list_opt -> empty','declaration_list_opt',1,'p_declaration_list_opt','plyparser.py',42),
+  ('declaration_list_opt -> declaration_list','declaration_list_opt',1,'p_declaration_list_opt','plyparser.py',43),
+  ('declaration_specifiers_no_type_opt -> empty','declaration_specifiers_no_type_opt',1,'p_declaration_specifiers_no_type_opt','plyparser.py',42),
+  ('declaration_specifiers_no_type_opt -> declaration_specifiers_no_type','declaration_specifiers_no_type_opt',1,'p_declaration_specifiers_no_type_opt','plyparser.py',43),
+  ('designation_opt -> empty','designation_opt',1,'p_designation_opt','plyparser.py',42),
+  ('designation_opt -> designation','designation_opt',1,'p_designation_opt','plyparser.py',43),
+  ('expression_opt -> empty','expression_opt',1,'p_expression_opt','plyparser.py',42),
+  ('expression_opt -> expression','expression_opt',1,'p_expression_opt','plyparser.py',43),
+  ('id_init_declarator_list_opt -> empty','id_init_declarator_list_opt',1,'p_id_init_declarator_list_opt','plyparser.py',42),
+  ('id_init_declarator_list_opt -> id_init_declarator_list','id_init_declarator_list_opt',1,'p_id_init_declarator_list_opt','plyparser.py',43),
+  ('identifier_list_opt -> empty','identifier_list_opt',1,'p_identifier_list_opt','plyparser.py',42),
+  ('identifier_list_opt -> identifier_list','identifier_list_opt',1,'p_identifier_list_opt','plyparser.py',43),
+  ('init_declarator_list_opt -> empty','init_declarator_list_opt',1,'p_init_declarator_list_opt','plyparser.py',42),
+  ('init_declarator_list_opt -> init_declarator_list','init_declarator_list_opt',1,'p_init_declarator_list_opt','plyparser.py',43),
+  ('initializer_list_opt -> empty','initializer_list_opt',1,'p_initializer_list_opt','plyparser.py',42),
+  ('initializer_list_opt -> initializer_list','initializer_list_opt',1,'p_initializer_list_opt','plyparser.py',43),
+  ('parameter_type_list_opt -> empty','parameter_type_list_opt',1,'p_parameter_type_list_opt','plyparser.py',42),
+  ('parameter_type_list_opt -> parameter_type_list','parameter_type_list_opt',1,'p_parameter_type_list_opt','plyparser.py',43),
+  ('struct_declarator_list_opt -> empty','struct_declarator_list_opt',1,'p_struct_declarator_list_opt','plyparser.py',42),
+  ('struct_declarator_list_opt -> struct_declarator_list','struct_declarator_list_opt',1,'p_struct_declarator_list_opt','plyparser.py',43),
+  ('type_qualifier_list_opt -> empty','type_qualifier_list_opt',1,'p_type_qualifier_list_opt','plyparser.py',42),
+  ('type_qualifier_list_opt -> type_qualifier_list','type_qualifier_list_opt',1,'p_type_qualifier_list_opt','plyparser.py',43),
+  ('direct_id_declarator -> ID','direct_id_declarator',1,'p_direct_id_declarator_1','plyparser.py',109),
+  ('direct_id_declarator -> LPAREN id_declarator RPAREN','direct_id_declarator',3,'p_direct_id_declarator_2','plyparser.py',109),
+  ('direct_id_declarator -> direct_id_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET','direct_id_declarator',5,'p_direct_id_declarator_3','plyparser.py',109),
+  ('direct_id_declarator -> direct_id_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET','direct_id_declarator',6,'p_direct_id_declarator_4','plyparser.py',109),
+  ('direct_id_declarator -> direct_id_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET','direct_id_declarator',6,'p_direct_id_declarator_4','plyparser.py',110),
+  ('direct_id_declarator -> direct_id_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET','direct_id_declarator',5,'p_direct_id_declarator_5','plyparser.py',109),
+  ('direct_id_declarator -> direct_id_declarator LPAREN parameter_type_list RPAREN','direct_id_declarator',4,'p_direct_id_declarator_6','plyparser.py',109),
+  ('direct_id_declarator -> direct_id_declarator LPAREN identifier_list_opt RPAREN','direct_id_declarator',4,'p_direct_id_declarator_6','plyparser.py',110),
+  ('direct_typeid_declarator -> TYPEID','direct_typeid_declarator',1,'p_direct_typeid_declarator_1','plyparser.py',109),
+  ('direct_typeid_declarator -> LPAREN typeid_declarator RPAREN','direct_typeid_declarator',3,'p_direct_typeid_declarator_2','plyparser.py',109),
+  ('direct_typeid_declarator -> direct_typeid_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET','direct_typeid_declarator',5,'p_direct_typeid_declarator_3','plyparser.py',109),
+  ('direct_typeid_declarator -> direct_typeid_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET','direct_typeid_declarator',6,'p_direct_typeid_declarator_4','plyparser.py',109),
+  ('direct_typeid_declarator -> direct_typeid_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET','direct_typeid_declarator',6,'p_direct_typeid_declarator_4','plyparser.py',110),
+  ('direct_typeid_declarator -> direct_typeid_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET','direct_typeid_declarator',5,'p_direct_typeid_declarator_5','plyparser.py',109),
+  ('direct_typeid_declarator -> direct_typeid_declarator LPAREN parameter_type_list RPAREN','direct_typeid_declarator',4,'p_direct_typeid_declarator_6','plyparser.py',109),
+  ('direct_typeid_declarator -> direct_typeid_declarator LPAREN identifier_list_opt RPAREN','direct_typeid_declarator',4,'p_direct_typeid_declarator_6','plyparser.py',110),
+  ('direct_typeid_noparen_declarator -> TYPEID','direct_typeid_noparen_declarator',1,'p_direct_typeid_noparen_declarator_1','plyparser.py',109),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LBRACKET type_qualifier_list_opt assignment_expression_opt RBRACKET','direct_typeid_noparen_declarator',5,'p_direct_typeid_noparen_declarator_3','plyparser.py',109),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LBRACKET STATIC type_qualifier_list_opt assignment_expression RBRACKET','direct_typeid_noparen_declarator',6,'p_direct_typeid_noparen_declarator_4','plyparser.py',109),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LBRACKET type_qualifier_list STATIC assignment_expression RBRACKET','direct_typeid_noparen_declarator',6,'p_direct_typeid_noparen_declarator_4','plyparser.py',110),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LBRACKET type_qualifier_list_opt TIMES RBRACKET','direct_typeid_noparen_declarator',5,'p_direct_typeid_noparen_declarator_5','plyparser.py',109),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LPAREN parameter_type_list RPAREN','direct_typeid_noparen_declarator',4,'p_direct_typeid_noparen_declarator_6','plyparser.py',109),
+  ('direct_typeid_noparen_declarator -> direct_typeid_noparen_declarator LPAREN identifier_list_opt RPAREN','direct_typeid_noparen_declarator',4,'p_direct_typeid_noparen_declarator_6','plyparser.py',110),
+  ('id_declarator -> direct_id_declarator','id_declarator',1,'p_id_declarator_1','plyparser.py',109),
+  ('id_declarator -> pointer direct_id_declarator','id_declarator',2,'p_id_declarator_2','plyparser.py',109),
+  ('typeid_declarator -> direct_typeid_declarator','typeid_declarator',1,'p_typeid_declarator_1','plyparser.py',109),
+  ('typeid_declarator -> pointer direct_typeid_declarator','typeid_declarator',2,'p_typeid_declarator_2','plyparser.py',109),
+  ('typeid_noparen_declarator -> direct_typeid_noparen_declarator','typeid_noparen_declarator',1,'p_typeid_noparen_declarator_1','plyparser.py',109),
+  ('typeid_noparen_declarator -> pointer direct_typeid_noparen_declarator','typeid_noparen_declarator',2,'p_typeid_noparen_declarator_2','plyparser.py',109),
+  ('translation_unit_or_empty -> translation_unit','translation_unit_or_empty',1,'p_translation_unit_or_empty','c_parser.py',514),
+  ('translation_unit_or_empty -> empty','translation_unit_or_empty',1,'p_translation_unit_or_empty','c_parser.py',515),
+  ('translation_unit -> external_declaration','translation_unit',1,'p_translation_unit_1','c_parser.py',523),
+  ('translation_unit -> translation_unit external_declaration','translation_unit',2,'p_translation_unit_2','c_parser.py',530),
+  ('external_declaration -> function_definition','external_declaration',1,'p_external_declaration_1','c_parser.py',542),
+  ('external_declaration -> declaration','external_declaration',1,'p_external_declaration_2','c_parser.py',547),
+  ('external_declaration -> pp_directive','external_declaration',1,'p_external_declaration_3','c_parser.py',552),
+  ('external_declaration -> pppragma_directive','external_declaration',1,'p_external_declaration_3','c_parser.py',553),
+  ('external_declaration -> SEMI','external_declaration',1,'p_external_declaration_4','c_parser.py',558),
+  ('pp_directive -> PPHASH','pp_directive',1,'p_pp_directive','c_parser.py',563),
+  ('pppragma_directive -> PPPRAGMA','pppragma_directive',1,'p_pppragma_directive','c_parser.py',569),
+  ('pppragma_directive -> PPPRAGMA PPPRAGMASTR','pppragma_directive',2,'p_pppragma_directive','c_parser.py',570),
+  ('function_definition -> id_declarator declaration_list_opt compound_statement','function_definition',3,'p_function_definition_1','c_parser.py',581),
+  ('function_definition -> declaration_specifiers id_declarator declaration_list_opt compound_statement','function_definition',4,'p_function_definition_2','c_parser.py',598),
+  ('statement -> labeled_statement','statement',1,'p_statement','c_parser.py',609),
+  ('statement -> expression_statement','statement',1,'p_statement','c_parser.py',610),
+  ('statement -> compound_statement','statement',1,'p_statement','c_parser.py',611),
+  ('statement -> selection_statement','statement',1,'p_statement','c_parser.py',612),
+  ('statement -> iteration_statement','statement',1,'p_statement','c_parser.py',613),
+  ('statement -> jump_statement','statement',1,'p_statement','c_parser.py',614),
+  ('statement -> pppragma_directive','statement',1,'p_statement','c_parser.py',615),
+  ('decl_body -> declaration_specifiers init_declarator_list_opt','decl_body',2,'p_decl_body','c_parser.py',629),
+  ('decl_body -> declaration_specifiers_no_type id_init_declarator_list_opt','decl_body',2,'p_decl_body','c_parser.py',630),
+  ('declaration -> decl_body SEMI','declaration',2,'p_declaration','c_parser.py',689),
+  ('declaration_list -> declaration','declaration_list',1,'p_declaration_list','c_parser.py',698),
+  ('declaration_list -> declaration_list declaration','declaration_list',2,'p_declaration_list','c_parser.py',699),
+  ('declaration_specifiers_no_type -> type_qualifier declaration_specifiers_no_type_opt','declaration_specifiers_no_type',2,'p_declaration_specifiers_no_type_1','c_parser.py',709),
+  ('declaration_specifiers_no_type -> storage_class_specifier declaration_specifiers_no_type_opt','declaration_specifiers_no_type',2,'p_declaration_specifiers_no_type_2','c_parser.py',714),
+  ('declaration_specifiers_no_type -> function_specifier declaration_specifiers_no_type_opt','declaration_specifiers_no_type',2,'p_declaration_specifiers_no_type_3','c_parser.py',719),
+  ('declaration_specifiers -> declaration_specifiers type_qualifier','declaration_specifiers',2,'p_declaration_specifiers_1','c_parser.py',725),
+  ('declaration_specifiers -> declaration_specifiers storage_class_specifier','declaration_specifiers',2,'p_declaration_specifiers_2','c_parser.py',730),
+  ('declaration_specifiers -> declaration_specifiers function_specifier','declaration_specifiers',2,'p_declaration_specifiers_3','c_parser.py',735),
+  ('declaration_specifiers -> declaration_specifiers type_specifier_no_typeid','declaration_specifiers',2,'p_declaration_specifiers_4','c_parser.py',740),
+  ('declaration_specifiers -> type_specifier','declaration_specifiers',1,'p_declaration_specifiers_5','c_parser.py',745),
+  ('declaration_specifiers -> declaration_specifiers_no_type type_specifier','declaration_specifiers',2,'p_declaration_specifiers_6','c_parser.py',750),
+  ('storage_class_specifier -> AUTO','storage_class_specifier',1,'p_storage_class_specifier','c_parser.py',756),
+  ('storage_class_specifier -> REGISTER','storage_class_specifier',1,'p_storage_class_specifier','c_parser.py',757),
+  ('storage_class_specifier -> STATIC','storage_class_specifier',1,'p_storage_class_specifier','c_parser.py',758),
+  ('storage_class_specifier -> EXTERN','storage_class_specifier',1,'p_storage_class_specifier','c_parser.py',759),
+  ('storage_class_specifier -> TYPEDEF','storage_class_specifier',1,'p_storage_class_specifier','c_parser.py',760),
+  ('function_specifier -> INLINE','function_specifier',1,'p_function_specifier','c_parser.py',765),
+  ('type_specifier_no_typeid -> VOID','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',770),
+  ('type_specifier_no_typeid -> _BOOL','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',771),
+  ('type_specifier_no_typeid -> CHAR','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',772),
+  ('type_specifier_no_typeid -> SHORT','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',773),
+  ('type_specifier_no_typeid -> INT','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',774),
+  ('type_specifier_no_typeid -> LONG','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',775),
+  ('type_specifier_no_typeid -> FLOAT','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',776),
+  ('type_specifier_no_typeid -> DOUBLE','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',777),
+  ('type_specifier_no_typeid -> _COMPLEX','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',778),
+  ('type_specifier_no_typeid -> SIGNED','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',779),
+  ('type_specifier_no_typeid -> UNSIGNED','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',780),
+  ('type_specifier_no_typeid -> __INT128','type_specifier_no_typeid',1,'p_type_specifier_no_typeid','c_parser.py',781),
+  ('type_specifier -> typedef_name','type_specifier',1,'p_type_specifier','c_parser.py',786),
+  ('type_specifier -> enum_specifier','type_specifier',1,'p_type_specifier','c_parser.py',787),
+  ('type_specifier -> struct_or_union_specifier','type_specifier',1,'p_type_specifier','c_parser.py',788),
+  ('type_specifier -> type_specifier_no_typeid','type_specifier',1,'p_type_specifier','c_parser.py',789),
+  ('type_qualifier -> CONST','type_qualifier',1,'p_type_qualifier','c_parser.py',794),
+  ('type_qualifier -> RESTRICT','type_qualifier',1,'p_type_qualifier','c_parser.py',795),
+  ('type_qualifier -> VOLATILE','type_qualifier',1,'p_type_qualifier','c_parser.py',796),
+  ('init_declarator_list -> init_declarator','init_declarator_list',1,'p_init_declarator_list','c_parser.py',801),
+  ('init_declarator_list -> init_declarator_list COMMA init_declarator','init_declarator_list',3,'p_init_declarator_list','c_parser.py',802),
+  ('init_declarator -> declarator','init_declarator',1,'p_init_declarator','c_parser.py',810),
+  ('init_declarator -> declarator EQUALS initializer','init_declarator',3,'p_init_declarator','c_parser.py',811),
+  ('id_init_declarator_list -> id_init_declarator','id_init_declarator_list',1,'p_id_init_declarator_list','c_parser.py',816),
+  ('id_init_declarator_list -> id_init_declarator_list COMMA init_declarator','id_init_declarator_list',3,'p_id_init_declarator_list','c_parser.py',817),
+  ('id_init_declarator -> id_declarator','id_init_declarator',1,'p_id_init_declarator','c_parser.py',822),
+  ('id_init_declarator -> id_declarator EQUALS initializer','id_init_declarator',3,'p_id_init_declarator','c_parser.py',823),
+  ('specifier_qualifier_list -> specifier_qualifier_list type_specifier_no_typeid','specifier_qualifier_list',2,'p_specifier_qualifier_list_1','c_parser.py',830),
+  ('specifier_qualifier_list -> specifier_qualifier_list type_qualifier','specifier_qualifier_list',2,'p_specifier_qualifier_list_2','c_parser.py',835),
+  ('specifier_qualifier_list -> type_specifier','specifier_qualifier_list',1,'p_specifier_qualifier_list_3','c_parser.py',840),
+  ('specifier_qualifier_list -> type_qualifier_list type_specifier','specifier_qualifier_list',2,'p_specifier_qualifier_list_4','c_parser.py',845),
+  ('struct_or_union_specifier -> struct_or_union ID','struct_or_union_specifier',2,'p_struct_or_union_specifier_1','c_parser.py',854),
+  ('struct_or_union_specifier -> struct_or_union TYPEID','struct_or_union_specifier',2,'p_struct_or_union_specifier_1','c_parser.py',855),
+  ('struct_or_union_specifier -> struct_or_union brace_open struct_declaration_list brace_close','struct_or_union_specifier',4,'p_struct_or_union_specifier_2','c_parser.py',864),
+  ('struct_or_union_specifier -> struct_or_union ID brace_open struct_declaration_list brace_close','struct_or_union_specifier',5,'p_struct_or_union_specifier_3','c_parser.py',873),
+  ('struct_or_union_specifier -> struct_or_union TYPEID brace_open struct_declaration_list brace_close','struct_or_union_specifier',5,'p_struct_or_union_specifier_3','c_parser.py',874),
+  ('struct_or_union -> STRUCT','struct_or_union',1,'p_struct_or_union','c_parser.py',883),
+  ('struct_or_union -> UNION','struct_or_union',1,'p_struct_or_union','c_parser.py',884),
+  ('struct_declaration_list -> struct_declaration','struct_declaration_list',1,'p_struct_declaration_list','c_parser.py',891),
+  ('struct_declaration_list -> struct_declaration_list struct_declaration','struct_declaration_list',2,'p_struct_declaration_list','c_parser.py',892),
+  ('struct_declaration -> specifier_qualifier_list struct_declarator_list_opt SEMI','struct_declaration',3,'p_struct_declaration_1','c_parser.py',900),
+  ('struct_declaration -> SEMI','struct_declaration',1,'p_struct_declaration_2','c_parser.py',938),
+  ('struct_declarator_list -> struct_declarator','struct_declarator_list',1,'p_struct_declarator_list','c_parser.py',943),
+  ('struct_declarator_list -> struct_declarator_list COMMA struct_declarator','struct_declarator_list',3,'p_struct_declarator_list','c_parser.py',944),
+  ('struct_declarator -> declarator','struct_declarator',1,'p_struct_declarator_1','c_parser.py',952),
+  ('struct_declarator -> declarator COLON constant_expression','struct_declarator',3,'p_struct_declarator_2','c_parser.py',957),
+  ('struct_declarator -> COLON constant_expression','struct_declarator',2,'p_struct_declarator_2','c_parser.py',958),
+  ('enum_specifier -> ENUM ID','enum_specifier',2,'p_enum_specifier_1','c_parser.py',966),
+  ('enum_specifier -> ENUM TYPEID','enum_specifier',2,'p_enum_specifier_1','c_parser.py',967),
+  ('enum_specifier -> ENUM brace_open enumerator_list brace_close','enum_specifier',4,'p_enum_specifier_2','c_parser.py',972),
+  ('enum_specifier -> ENUM ID brace_open enumerator_list brace_close','enum_specifier',5,'p_enum_specifier_3','c_parser.py',977),
+  ('enum_specifier -> ENUM TYPEID brace_open enumerator_list brace_close','enum_specifier',5,'p_enum_specifier_3','c_parser.py',978),
+  ('enumerator_list -> enumerator','enumerator_list',1,'p_enumerator_list','c_parser.py',983),
+  ('enumerator_list -> enumerator_list COMMA','enumerator_list',2,'p_enumerator_list','c_parser.py',984),
+  ('enumerator_list -> enumerator_list COMMA enumerator','enumerator_list',3,'p_enumerator_list','c_parser.py',985),
+  ('enumerator -> ID','enumerator',1,'p_enumerator','c_parser.py',996),
+  ('enumerator -> ID EQUALS constant_expression','enumerator',3,'p_enumerator','c_parser.py',997),
+  ('declarator -> id_declarator','declarator',1,'p_declarator','c_parser.py',1012),
+  ('declarator -> typeid_declarator','declarator',1,'p_declarator','c_parser.py',1013),
+  ('pointer -> TIMES type_qualifier_list_opt','pointer',2,'p_pointer','c_parser.py',1124),
+  ('pointer -> TIMES type_qualifier_list_opt pointer','pointer',3,'p_pointer','c_parser.py',1125),
+  ('type_qualifier_list -> type_qualifier','type_qualifier_list',1,'p_type_qualifier_list','c_parser.py',1154),
+  ('type_qualifier_list -> type_qualifier_list type_qualifier','type_qualifier_list',2,'p_type_qualifier_list','c_parser.py',1155),
+  ('parameter_type_list -> parameter_list','parameter_type_list',1,'p_parameter_type_list','c_parser.py',1160),
+  ('parameter_type_list -> parameter_list COMMA ELLIPSIS','parameter_type_list',3,'p_parameter_type_list','c_parser.py',1161),
+  ('parameter_list -> parameter_declaration','parameter_list',1,'p_parameter_list','c_parser.py',1169),
+  ('parameter_list -> parameter_list COMMA parameter_declaration','parameter_list',3,'p_parameter_list','c_parser.py',1170),
+  ('parameter_declaration -> declaration_specifiers id_declarator','parameter_declaration',2,'p_parameter_declaration_1','c_parser.py',1189),
+  ('parameter_declaration -> declaration_specifiers typeid_noparen_declarator','parameter_declaration',2,'p_parameter_declaration_1','c_parser.py',1190),
+  ('parameter_declaration -> declaration_specifiers abstract_declarator_opt','parameter_declaration',2,'p_parameter_declaration_2','c_parser.py',1201),
+  ('identifier_list -> identifier','identifier_list',1,'p_identifier_list','c_parser.py',1232),
+  ('identifier_list -> identifier_list COMMA identifier','identifier_list',3,'p_identifier_list','c_parser.py',1233),
+  ('initializer -> assignment_expression','initializer',1,'p_initializer_1','c_parser.py',1242),
+  ('initializer -> brace_open initializer_list_opt brace_close','initializer',3,'p_initializer_2','c_parser.py',1247),
+  ('initializer -> brace_open initializer_list COMMA brace_close','initializer',4,'p_initializer_2','c_parser.py',1248),
+  ('initializer_list -> designation_opt initializer','initializer_list',2,'p_initializer_list','c_parser.py',1256),
+  ('initializer_list -> initializer_list COMMA designation_opt initializer','initializer_list',4,'p_initializer_list','c_parser.py',1257),
+  ('designation -> designator_list EQUALS','designation',2,'p_designation','c_parser.py',1268),
+  ('designator_list -> designator','designator_list',1,'p_designator_list','c_parser.py',1276),
+  ('designator_list -> designator_list designator','designator_list',2,'p_designator_list','c_parser.py',1277),
+  ('designator -> LBRACKET constant_expression RBRACKET','designator',3,'p_designator','c_parser.py',1282),
+  ('designator -> PERIOD identifier','designator',2,'p_designator','c_parser.py',1283),
+  ('type_name -> specifier_qualifier_list abstract_declarator_opt','type_name',2,'p_type_name','c_parser.py',1288),
+  ('abstract_declarator -> pointer','abstract_declarator',1,'p_abstract_declarator_1','c_parser.py',1299),
+  ('abstract_declarator -> pointer direct_abstract_declarator','abstract_declarator',2,'p_abstract_declarator_2','c_parser.py',1307),
+  ('abstract_declarator -> direct_abstract_declarator','abstract_declarator',1,'p_abstract_declarator_3','c_parser.py',1312),
+  ('direct_abstract_declarator -> LPAREN abstract_declarator RPAREN','direct_abstract_declarator',3,'p_direct_abstract_declarator_1','c_parser.py',1322),
+  ('direct_abstract_declarator -> direct_abstract_declarator LBRACKET assignment_expression_opt RBRACKET','direct_abstract_declarator',4,'p_direct_abstract_declarator_2','c_parser.py',1326),
+  ('direct_abstract_declarator -> LBRACKET assignment_expression_opt RBRACKET','direct_abstract_declarator',3,'p_direct_abstract_declarator_3','c_parser.py',1337),
+  ('direct_abstract_declarator -> direct_abstract_declarator LBRACKET TIMES RBRACKET','direct_abstract_declarator',4,'p_direct_abstract_declarator_4','c_parser.py',1346),
+  ('direct_abstract_declarator -> LBRACKET TIMES RBRACKET','direct_abstract_declarator',3,'p_direct_abstract_declarator_5','c_parser.py',1357),
+  ('direct_abstract_declarator -> direct_abstract_declarator LPAREN parameter_type_list_opt RPAREN','direct_abstract_declarator',4,'p_direct_abstract_declarator_6','c_parser.py',1366),
+  ('direct_abstract_declarator -> LPAREN parameter_type_list_opt RPAREN','direct_abstract_declarator',3,'p_direct_abstract_declarator_7','c_parser.py',1376),
+  ('block_item -> declaration','block_item',1,'p_block_item','c_parser.py',1387),
+  ('block_item -> statement','block_item',1,'p_block_item','c_parser.py',1388),
+  ('block_item_list -> block_item','block_item_list',1,'p_block_item_list','c_parser.py',1395),
+  ('block_item_list -> block_item_list block_item','block_item_list',2,'p_block_item_list','c_parser.py',1396),
+  ('compound_statement -> brace_open block_item_list_opt brace_close','compound_statement',3,'p_compound_statement_1','c_parser.py',1402),
+  ('labeled_statement -> ID COLON statement','labeled_statement',3,'p_labeled_statement_1','c_parser.py',1408),
+  ('labeled_statement -> CASE constant_expression COLON statement','labeled_statement',4,'p_labeled_statement_2','c_parser.py',1412),
+  ('labeled_statement -> DEFAULT COLON statement','labeled_statement',3,'p_labeled_statement_3','c_parser.py',1416),
+  ('selection_statement -> IF LPAREN expression RPAREN statement','selection_statement',5,'p_selection_statement_1','c_parser.py',1420),
+  ('selection_statement -> IF LPAREN expression RPAREN statement ELSE statement','selection_statement',7,'p_selection_statement_2','c_parser.py',1424),
+  ('selection_statement -> SWITCH LPAREN expression RPAREN statement','selection_statement',5,'p_selection_statement_3','c_parser.py',1428),
+  ('iteration_statement -> WHILE LPAREN expression RPAREN statement','iteration_statement',5,'p_iteration_statement_1','c_parser.py',1433),
+  ('iteration_statement -> DO statement WHILE LPAREN expression RPAREN SEMI','iteration_statement',7,'p_iteration_statement_2','c_parser.py',1437),
+  ('iteration_statement -> FOR LPAREN expression_opt SEMI expression_opt SEMI expression_opt RPAREN statement','iteration_statement',9,'p_iteration_statement_3','c_parser.py',1441),
+  ('iteration_statement -> FOR LPAREN declaration expression_opt SEMI expression_opt RPAREN statement','iteration_statement',8,'p_iteration_statement_4','c_parser.py',1445),
+  ('jump_statement -> GOTO ID SEMI','jump_statement',3,'p_jump_statement_1','c_parser.py',1450),
+  ('jump_statement -> BREAK SEMI','jump_statement',2,'p_jump_statement_2','c_parser.py',1454),
+  ('jump_statement -> CONTINUE SEMI','jump_statement',2,'p_jump_statement_3','c_parser.py',1458),
+  ('jump_statement -> RETURN expression SEMI','jump_statement',3,'p_jump_statement_4','c_parser.py',1462),
+  ('jump_statement -> RETURN SEMI','jump_statement',2,'p_jump_statement_4','c_parser.py',1463),
+  ('expression_statement -> expression_opt SEMI','expression_statement',2,'p_expression_statement','c_parser.py',1468),
+  ('expression -> assignment_expression','expression',1,'p_expression','c_parser.py',1475),
+  ('expression -> expression COMMA assignment_expression','expression',3,'p_expression','c_parser.py',1476),
+  ('typedef_name -> TYPEID','typedef_name',1,'p_typedef_name','c_parser.py',1488),
+  ('assignment_expression -> conditional_expression','assignment_expression',1,'p_assignment_expression','c_parser.py',1492),
+  ('assignment_expression -> unary_expression assignment_operator assignment_expression','assignment_expression',3,'p_assignment_expression','c_parser.py',1493),
+  ('assignment_operator -> EQUALS','assignment_operator',1,'p_assignment_operator','c_parser.py',1506),
+  ('assignment_operator -> XOREQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1507),
+  ('assignment_operator -> TIMESEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1508),
+  ('assignment_operator -> DIVEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1509),
+  ('assignment_operator -> MODEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1510),
+  ('assignment_operator -> PLUSEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1511),
+  ('assignment_operator -> MINUSEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1512),
+  ('assignment_operator -> LSHIFTEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1513),
+  ('assignment_operator -> RSHIFTEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1514),
+  ('assignment_operator -> ANDEQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1515),
+  ('assignment_operator -> OREQUAL','assignment_operator',1,'p_assignment_operator','c_parser.py',1516),
+  ('constant_expression -> conditional_expression','constant_expression',1,'p_constant_expression','c_parser.py',1521),
+  ('conditional_expression -> binary_expression','conditional_expression',1,'p_conditional_expression','c_parser.py',1525),
+  ('conditional_expression -> binary_expression CONDOP expression COLON conditional_expression','conditional_expression',5,'p_conditional_expression','c_parser.py',1526),
+  ('binary_expression -> cast_expression','binary_expression',1,'p_binary_expression','c_parser.py',1534),
+  ('binary_expression -> binary_expression TIMES binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1535),
+  ('binary_expression -> binary_expression DIVIDE binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1536),
+  ('binary_expression -> binary_expression MOD binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1537),
+  ('binary_expression -> binary_expression PLUS binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1538),
+  ('binary_expression -> binary_expression MINUS binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1539),
+  ('binary_expression -> binary_expression RSHIFT binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1540),
+  ('binary_expression -> binary_expression LSHIFT binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1541),
+  ('binary_expression -> binary_expression LT binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1542),
+  ('binary_expression -> binary_expression LE binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1543),
+  ('binary_expression -> binary_expression GE binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1544),
+  ('binary_expression -> binary_expression GT binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1545),
+  ('binary_expression -> binary_expression EQ binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1546),
+  ('binary_expression -> binary_expression NE binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1547),
+  ('binary_expression -> binary_expression AND binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1548),
+  ('binary_expression -> binary_expression OR binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1549),
+  ('binary_expression -> binary_expression XOR binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1550),
+  ('binary_expression -> binary_expression LAND binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1551),
+  ('binary_expression -> binary_expression LOR binary_expression','binary_expression',3,'p_binary_expression','c_parser.py',1552),
+  ('cast_expression -> unary_expression','cast_expression',1,'p_cast_expression_1','c_parser.py',1560),
+  ('cast_expression -> LPAREN type_name RPAREN cast_expression','cast_expression',4,'p_cast_expression_2','c_parser.py',1564),
+  ('unary_expression -> postfix_expression','unary_expression',1,'p_unary_expression_1','c_parser.py',1568),
+  ('unary_expression -> PLUSPLUS unary_expression','unary_expression',2,'p_unary_expression_2','c_parser.py',1572),
+  ('unary_expression -> MINUSMINUS unary_expression','unary_expression',2,'p_unary_expression_2','c_parser.py',1573),
+  ('unary_expression -> unary_operator cast_expression','unary_expression',2,'p_unary_expression_2','c_parser.py',1574),
+  ('unary_expression -> SIZEOF unary_expression','unary_expression',2,'p_unary_expression_3','c_parser.py',1579),
+  ('unary_expression -> SIZEOF LPAREN type_name RPAREN','unary_expression',4,'p_unary_expression_3','c_parser.py',1580),
+  ('unary_operator -> AND','unary_operator',1,'p_unary_operator','c_parser.py',1588),
+  ('unary_operator -> TIMES','unary_operator',1,'p_unary_operator','c_parser.py',1589),
+  ('unary_operator -> PLUS','unary_operator',1,'p_unary_operator','c_parser.py',1590),
+  ('unary_operator -> MINUS','unary_operator',1,'p_unary_operator','c_parser.py',1591),
+  ('unary_operator -> NOT','unary_operator',1,'p_unary_operator','c_parser.py',1592),
+  ('unary_operator -> LNOT','unary_operator',1,'p_unary_operator','c_parser.py',1593),
+  ('postfix_expression -> primary_expression','postfix_expression',1,'p_postfix_expression_1','c_parser.py',1598),
+  ('postfix_expression -> postfix_expression LBRACKET expression RBRACKET','postfix_expression',4,'p_postfix_expression_2','c_parser.py',1602),
+  ('postfix_expression -> postfix_expression LPAREN argument_expression_list RPAREN','postfix_expression',4,'p_postfix_expression_3','c_parser.py',1606),
+  ('postfix_expression -> postfix_expression LPAREN RPAREN','postfix_expression',3,'p_postfix_expression_3','c_parser.py',1607),
+  ('postfix_expression -> postfix_expression PERIOD ID','postfix_expression',3,'p_postfix_expression_4','c_parser.py',1612),
+  ('postfix_expression -> postfix_expression PERIOD TYPEID','postfix_expression',3,'p_postfix_expression_4','c_parser.py',1613),
+  ('postfix_expression -> postfix_expression ARROW ID','postfix_expression',3,'p_postfix_expression_4','c_parser.py',1614),
+  ('postfix_expression -> postfix_expression ARROW TYPEID','postfix_expression',3,'p_postfix_expression_4','c_parser.py',1615),
+  ('postfix_expression -> postfix_expression PLUSPLUS','postfix_expression',2,'p_postfix_expression_5','c_parser.py',1621),
+  ('postfix_expression -> postfix_expression MINUSMINUS','postfix_expression',2,'p_postfix_expression_5','c_parser.py',1622),
+  ('postfix_expression -> LPAREN type_name RPAREN brace_open initializer_list brace_close','postfix_expression',6,'p_postfix_expression_6','c_parser.py',1627),
+  ('postfix_expression -> LPAREN type_name RPAREN brace_open initializer_list COMMA brace_close','postfix_expression',7,'p_postfix_expression_6','c_parser.py',1628),
+  ('primary_expression -> identifier','primary_expression',1,'p_primary_expression_1','c_parser.py',1633),
+  ('primary_expression -> constant','primary_expression',1,'p_primary_expression_2','c_parser.py',1637),
+  ('primary_expression -> unified_string_literal','primary_expression',1,'p_primary_expression_3','c_parser.py',1641),
+  ('primary_expression -> unified_wstring_literal','primary_expression',1,'p_primary_expression_3','c_parser.py',1642),
+  ('primary_expression -> LPAREN expression RPAREN','primary_expression',3,'p_primary_expression_4','c_parser.py',1647),
+  ('primary_expression -> OFFSETOF LPAREN type_name COMMA offsetof_member_designator RPAREN','primary_expression',6,'p_primary_expression_5','c_parser.py',1651),
+  ('offsetof_member_designator -> identifier','offsetof_member_designator',1,'p_offsetof_member_designator','c_parser.py',1659),
+  ('offsetof_member_designator -> offsetof_member_designator PERIOD identifier','offsetof_member_designator',3,'p_offsetof_member_designator','c_parser.py',1660),
+  ('offsetof_member_designator -> offsetof_member_designator LBRACKET expression RBRACKET','offsetof_member_designator',4,'p_offsetof_member_designator','c_parser.py',1661),
+  ('argument_expression_list -> assignment_expression','argument_expression_list',1,'p_argument_expression_list','c_parser.py',1674),
+  ('argument_expression_list -> argument_expression_list COMMA assignment_expression','argument_expression_list',3,'p_argument_expression_list','c_parser.py',1675),
+  ('identifier -> ID','identifier',1,'p_identifier','c_parser.py',1684),
+  ('constant -> INT_CONST_DEC','constant',1,'p_constant_1','c_parser.py',1688),
+  ('constant -> INT_CONST_OCT','constant',1,'p_constant_1','c_parser.py',1689),
+  ('constant -> INT_CONST_HEX','constant',1,'p_constant_1','c_parser.py',1690),
+  ('constant -> INT_CONST_BIN','constant',1,'p_constant_1','c_parser.py',1691),
+  ('constant -> FLOAT_CONST','constant',1,'p_constant_2','c_parser.py',1697),
+  ('constant -> HEX_FLOAT_CONST','constant',1,'p_constant_2','c_parser.py',1698),
+  ('constant -> CHAR_CONST','constant',1,'p_constant_3','c_parser.py',1704),
+  ('constant -> WCHAR_CONST','constant',1,'p_constant_3','c_parser.py',1705),
+  ('unified_string_literal -> STRING_LITERAL','unified_string_literal',1,'p_unified_string_literal','c_parser.py',1716),
+  ('unified_string_literal -> unified_string_literal STRING_LITERAL','unified_string_literal',2,'p_unified_string_literal','c_parser.py',1717),
+  ('unified_wstring_literal -> WSTRING_LITERAL','unified_wstring_literal',1,'p_unified_wstring_literal','c_parser.py',1727),
+  ('unified_wstring_literal -> unified_wstring_literal WSTRING_LITERAL','unified_wstring_literal',2,'p_unified_wstring_literal','c_parser.py',1728),
+  ('brace_open -> LBRACE','brace_open',1,'p_brace_open','c_parser.py',1738),
+  ('brace_close -> RBRACE','brace_close',1,'p_brace_close','c_parser.py',1744),
+  ('empty -> <empty>','empty',0,'p_empty','c_parser.py',1750),
+]
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..ba3a46b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst
@@ -0,0 +1,36 @@
+.. image:: https://img.shields.io/pypi/v/setuptools.svg
+   :target: https://pypi.org/project/setuptools
+
+.. image:: https://readthedocs.org/projects/setuptools/badge/?version=latest
+    :target: https://setuptools.readthedocs.io
+
+.. image:: https://img.shields.io/travis/pypa/setuptools/master.svg?label=Linux%20build%20%40%20Travis%20CI
+   :target: https://travis-ci.org/pypa/setuptools
+
+.. image:: https://img.shields.io/appveyor/ci/jaraco/setuptools/master.svg?label=Windows%20build%20%40%20Appveyor
+   :target: https://ci.appveyor.com/project/jaraco/setuptools/branch/master
+
+.. image:: https://img.shields.io/pypi/pyversions/setuptools.svg
+
+See the `Installation Instructions
+<https://packaging.python.org/installing/>`_ in the Python Packaging
+User's Guide for instructions on installing, upgrading, and uninstalling
+Setuptools.
+
+The project is `maintained at GitHub <https://github.com/pypa/setuptools>`_.
+
+Questions and comments should be directed to the `distutils-sig
+mailing list <http://mail.python.org/pipermail/distutils-sig/>`_.
+Bug reports and especially tested patches may be
+submitted directly to the `bug tracker
+<https://github.com/pypa/setuptools/issues>`_.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the setuptools project's codebases, issue trackers,
+chat rooms, and mailing lists is expected to follow the
+`PyPA Code of Conduct <https://www.pypa.io/en/latest/code-of-conduct/>`_.
+
+
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt
new file mode 100644
index 0000000..6e0693b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (C) 2016 Jason R Coombs <jaraco@jaraco.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA
new file mode 100644
index 0000000..c34f767
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA
@@ -0,0 +1,68 @@
+Metadata-Version: 2.0
+Name: setuptools
+Version: 38.2.4
+Summary: Easily download, build, install, upgrade, and uninstall Python packages
+Home-page: https://github.com/pypa/setuptools
+Author: Python Packaging Authority
+Author-email: distutils-sig@python.org
+License: UNKNOWN
+Description-Content-Type: text/x-rst; charset=UTF-8
+Keywords: CPAN PyPI distutils eggs package management
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Classifier: Topic :: System :: Archiving :: Packaging
+Classifier: Topic :: System :: Systems Administration
+Classifier: Topic :: Utilities
+Requires-Python: >=2.7,!=3.0.*,!=3.1.*,!=3.2.*
+Provides-Extra: certs
+Requires-Dist: certifi (==2016.9.26); extra == 'certs'
+Provides-Extra: ssl
+Requires-Dist: wincertstore (==0.2); sys_platform=='win32' and extra == 'ssl'
+
+.. image:: https://img.shields.io/pypi/v/setuptools.svg
+   :target: https://pypi.org/project/setuptools
+
+.. image:: https://readthedocs.org/projects/setuptools/badge/?version=latest
+    :target: https://setuptools.readthedocs.io
+
+.. image:: https://img.shields.io/travis/pypa/setuptools/master.svg?label=Linux%20build%20%40%20Travis%20CI
+   :target: https://travis-ci.org/pypa/setuptools
+
+.. image:: https://img.shields.io/appveyor/ci/jaraco/setuptools/master.svg?label=Windows%20build%20%40%20Appveyor
+   :target: https://ci.appveyor.com/project/jaraco/setuptools/branch/master
+
+.. image:: https://img.shields.io/pypi/pyversions/setuptools.svg
+
+See the `Installation Instructions
+<https://packaging.python.org/installing/>`_ in the Python Packaging
+User's Guide for instructions on installing, upgrading, and uninstalling
+Setuptools.
+
+The project is `maintained at GitHub <https://github.com/pypa/setuptools>`_.
+
+Questions and comments should be directed to the `distutils-sig
+mailing list <http://mail.python.org/pipermail/distutils-sig/>`_.
+Bug reports and especially tested patches may be
+submitted directly to the `bug tracker
+<https://github.com/pypa/setuptools/issues>`_.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the setuptools project's codebases, issue trackers,
+chat rooms, and mailing lists is expected to follow the
+`PyPA Code of Conduct <https://www.pypa.io/en/latest/code-of-conduct/>`_.
+
+
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/RECORD b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/RECORD
new file mode 100644
index 0000000..09d96cb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/RECORD
@@ -0,0 +1,164 @@
+easy_install.py,sha256=MDC9vt5AxDsXX5qcKlBz2TnW6Tpuv_AobnfhCJ9X3PM,126
+pkg_resources/__init__.py,sha256=4QY15P8cS_OAzbXIytmbvGknvX7vdiiomG4YhbQRZCI,105991
+pkg_resources/py31compat.py,sha256=-ysVqoxLetAnL94uM0kHkomKQTC1JZLN2ZUjqUhMeKE,600
+pkg_resources/_vendor/__init__.py,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
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diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/WHEEL b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/WHEEL
new file mode 100644
index 0000000..7332a41
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.30.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/dependency_links.txt b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/dependency_links.txt
new file mode 100644
index 0000000..e87d021
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/dependency_links.txt
@@ -0,0 +1,2 @@
+https://files.pythonhosted.org/packages/source/c/certifi/certifi-2016.9.26.tar.gz#md5=baa81e951a29958563689d868ef1064d
+https://files.pythonhosted.org/packages/source/w/wincertstore/wincertstore-0.2.zip#md5=ae728f2f007185648d0c7a8679b361e2
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt
new file mode 100644
index 0000000..4159fd0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt
@@ -0,0 +1,65 @@
+[console_scripts]
+easy_install = setuptools.command.easy_install:main
+easy_install-3.6 = setuptools.command.easy_install:main
+
+[distutils.commands]
+alias = setuptools.command.alias:alias
+bdist_egg = setuptools.command.bdist_egg:bdist_egg
+bdist_rpm = setuptools.command.bdist_rpm:bdist_rpm
+bdist_wininst = setuptools.command.bdist_wininst:bdist_wininst
+build_clib = setuptools.command.build_clib:build_clib
+build_ext = setuptools.command.build_ext:build_ext
+build_py = setuptools.command.build_py:build_py
+develop = setuptools.command.develop:develop
+dist_info = setuptools.command.dist_info:dist_info
+easy_install = setuptools.command.easy_install:easy_install
+egg_info = setuptools.command.egg_info:egg_info
+install = setuptools.command.install:install
+install_egg_info = setuptools.command.install_egg_info:install_egg_info
+install_lib = setuptools.command.install_lib:install_lib
+install_scripts = setuptools.command.install_scripts:install_scripts
+register = setuptools.command.register:register
+rotate = setuptools.command.rotate:rotate
+saveopts = setuptools.command.saveopts:saveopts
+sdist = setuptools.command.sdist:sdist
+setopt = setuptools.command.setopt:setopt
+test = setuptools.command.test:test
+upload = setuptools.command.upload:upload
+upload_docs = setuptools.command.upload_docs:upload_docs
+
+[distutils.setup_keywords]
+convert_2to3_doctests = setuptools.dist:assert_string_list
+dependency_links = setuptools.dist:assert_string_list
+eager_resources = setuptools.dist:assert_string_list
+entry_points = setuptools.dist:check_entry_points
+exclude_package_data = setuptools.dist:check_package_data
+extras_require = setuptools.dist:check_extras
+include_package_data = setuptools.dist:assert_bool
+install_requires = setuptools.dist:check_requirements
+namespace_packages = setuptools.dist:check_nsp
+package_data = setuptools.dist:check_package_data
+packages = setuptools.dist:check_packages
+python_requires = setuptools.dist:check_specifier
+setup_requires = setuptools.dist:check_requirements
+test_loader = setuptools.dist:check_importable
+test_runner = setuptools.dist:check_importable
+test_suite = setuptools.dist:check_test_suite
+tests_require = setuptools.dist:check_requirements
+use_2to3 = setuptools.dist:assert_bool
+use_2to3_exclude_fixers = setuptools.dist:assert_string_list
+use_2to3_fixers = setuptools.dist:assert_string_list
+zip_safe = setuptools.dist:assert_bool
+
+[egg_info.writers]
+PKG-INFO = setuptools.command.egg_info:write_pkg_info
+dependency_links.txt = setuptools.command.egg_info:overwrite_arg
+depends.txt = setuptools.command.egg_info:warn_depends_obsolete
+eager_resources.txt = setuptools.command.egg_info:overwrite_arg
+entry_points.txt = setuptools.command.egg_info:write_entries
+namespace_packages.txt = setuptools.command.egg_info:overwrite_arg
+requires.txt = setuptools.command.egg_info:write_requirements
+top_level.txt = setuptools.command.egg_info:write_toplevel_names
+
+[setuptools.installation]
+eggsecutable = setuptools.command.easy_install:bootstrap
+
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json
new file mode 100644
index 0000000..8e0f1d9
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Operating System :: OS Independent", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6", "Topic :: Software Development :: Libraries :: Python Modules", "Topic :: System :: Archiving :: Packaging", "Topic :: System :: Systems Administration", "Topic :: Utilities"], "description_content_type": "text/x-rst; charset=UTF-8", "extensions": {"python.commands": {"wrap_console": {"easy_install": "setuptools.command.easy_install:main", "easy_install-3.6": "setuptools.command.easy_install:main"}}, "python.details": {"contacts": [{"email": "distutils-sig@python.org", "name": "Python Packaging Authority", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst", "license": "LICENSE.txt"}, "project_urls": {"Home": "https://github.com/pypa/setuptools"}}, "python.exports": {"console_scripts": {"easy_install": "setuptools.command.easy_install:main", "easy_install-3.6": "setuptools.command.easy_install:main"}, "distutils.commands": {"alias": "setuptools.command.alias:alias", "bdist_egg": "setuptools.command.bdist_egg:bdist_egg", "bdist_rpm": "setuptools.command.bdist_rpm:bdist_rpm", "bdist_wininst": "setuptools.command.bdist_wininst:bdist_wininst", "build_clib": "setuptools.command.build_clib:build_clib", "build_ext": "setuptools.command.build_ext:build_ext", "build_py": "setuptools.command.build_py:build_py", "develop": "setuptools.command.develop:develop", "dist_info": "setuptools.command.dist_info:dist_info", "easy_install": "setuptools.command.easy_install:easy_install", "egg_info": "setuptools.command.egg_info:egg_info", "install": "setuptools.command.install:install", "install_egg_info": "setuptools.command.install_egg_info:install_egg_info", "install_lib": "setuptools.command.install_lib:install_lib", "install_scripts": "setuptools.command.install_scripts:install_scripts", "register": "setuptools.command.register:register", "rotate": "setuptools.command.rotate:rotate", "saveopts": "setuptools.command.saveopts:saveopts", "sdist": "setuptools.command.sdist:sdist", "setopt": "setuptools.command.setopt:setopt", "test": "setuptools.command.test:test", "upload": "setuptools.command.upload:upload", "upload_docs": "setuptools.command.upload_docs:upload_docs"}, "distutils.setup_keywords": {"convert_2to3_doctests": "setuptools.dist:assert_string_list", "dependency_links": "setuptools.dist:assert_string_list", "eager_resources": "setuptools.dist:assert_string_list", "entry_points": "setuptools.dist:check_entry_points", "exclude_package_data": "setuptools.dist:check_package_data", "extras_require": "setuptools.dist:check_extras", "include_package_data": "setuptools.dist:assert_bool", "install_requires": "setuptools.dist:check_requirements", "namespace_packages": "setuptools.dist:check_nsp", "package_data": "setuptools.dist:check_package_data", "packages": "setuptools.dist:check_packages", "python_requires": "setuptools.dist:check_specifier", "setup_requires": "setuptools.dist:check_requirements", "test_loader": "setuptools.dist:check_importable", "test_runner": "setuptools.dist:check_importable", "test_suite": "setuptools.dist:check_test_suite", "tests_require": "setuptools.dist:check_requirements", "use_2to3": "setuptools.dist:assert_bool", "use_2to3_exclude_fixers": "setuptools.dist:assert_string_list", "use_2to3_fixers": "setuptools.dist:assert_string_list", "zip_safe": "setuptools.dist:assert_bool"}, "egg_info.writers": {"PKG-INFO": "setuptools.command.egg_info:write_pkg_info", "dependency_links.txt": "setuptools.command.egg_info:overwrite_arg", "depends.txt": "setuptools.command.egg_info:warn_depends_obsolete", "eager_resources.txt": "setuptools.command.egg_info:overwrite_arg", "entry_points.txt": "setuptools.command.egg_info:write_entries", "namespace_packages.txt": "setuptools.command.egg_info:overwrite_arg", "requires.txt": "setuptools.command.egg_info:write_requirements", "top_level.txt": "setuptools.command.egg_info:write_toplevel_names"}, "setuptools.installation": {"eggsecutable": "setuptools.command.easy_install:bootstrap"}}}, "extras": ["certs", "ssl"], "generator": "bdist_wheel (0.30.0)", "keywords": ["CPAN", "PyPI", "distutils", "eggs", "package", "management"], "metadata_version": "2.0", "name": "setuptools", "requires_python": ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*", "run_requires": [{"extra": "certs", "requires": ["certifi (==2016.9.26)"]}, {"environment": "sys_platform=='win32'", "extra": "ssl", "requires": ["wincertstore (==0.2)"]}], "summary": "Easily download, build, install, upgrade, and uninstall Python packages", "version": "38.2.4"}
\ No newline at end of file
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt
new file mode 100644
index 0000000..4577c6a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt
@@ -0,0 +1,3 @@
+easy_install
+pkg_resources
+setuptools
diff --git a/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe
@@ -0,0 +1 @@
+
diff --git a/venv/lib/python3.5/site-packages/setuptools/__init__.py b/venv/lib/python3.5/site-packages/setuptools/__init__.py
new file mode 100644
index 0000000..7da47fb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/__init__.py
@@ -0,0 +1,180 @@
+"""Extensions to the 'distutils' for large or complex distributions"""
+
+import os
+import functools
+import distutils.core
+import distutils.filelist
+from distutils.util import convert_path
+from fnmatch import fnmatchcase
+
+from setuptools.extern.six.moves import filter, map
+
+import setuptools.version
+from setuptools.extension import Extension
+from setuptools.dist import Distribution, Feature
+from setuptools.depends import Require
+from . import monkey
+
+__all__ = [
+    'setup', 'Distribution', 'Feature', 'Command', 'Extension', 'Require',
+    'find_packages',
+]
+
+__version__ = setuptools.version.__version__
+
+bootstrap_install_from = None
+
+# If we run 2to3 on .py files, should we also convert docstrings?
+# Default: yes; assume that we can detect doctests reliably
+run_2to3_on_doctests = True
+# Standard package names for fixer packages
+lib2to3_fixer_packages = ['lib2to3.fixes']
+
+
+class PackageFinder(object):
+    """
+    Generate a list of all Python packages found within a directory
+    """
+
+    @classmethod
+    def find(cls, where='.', exclude=(), include=('*',)):
+        """Return a list all Python packages found within directory 'where'
+
+        'where' is the root directory which will be searched for packages.  It
+        should be supplied as a "cross-platform" (i.e. URL-style) path; it will
+        be converted to the appropriate local path syntax.
+
+        'exclude' is a sequence of package names to exclude; '*' can be used
+        as a wildcard in the names, such that 'foo.*' will exclude all
+        subpackages of 'foo' (but not 'foo' itself).
+
+        'include' is a sequence of package names to include.  If it's
+        specified, only the named packages will be included.  If it's not
+        specified, all found packages will be included.  'include' can contain
+        shell style wildcard patterns just like 'exclude'.
+        """
+
+        return list(cls._find_packages_iter(
+            convert_path(where),
+            cls._build_filter('ez_setup', '*__pycache__', *exclude),
+            cls._build_filter(*include)))
+
+    @classmethod
+    def _find_packages_iter(cls, where, exclude, include):
+        """
+        All the packages found in 'where' that pass the 'include' filter, but
+        not the 'exclude' filter.
+        """
+        for root, dirs, files in os.walk(where, followlinks=True):
+            # Copy dirs to iterate over it, then empty dirs.
+            all_dirs = dirs[:]
+            dirs[:] = []
+
+            for dir in all_dirs:
+                full_path = os.path.join(root, dir)
+                rel_path = os.path.relpath(full_path, where)
+                package = rel_path.replace(os.path.sep, '.')
+
+                # Skip directory trees that are not valid packages
+                if ('.' in dir or not cls._looks_like_package(full_path)):
+                    continue
+
+                # Should this package be included?
+                if include(package) and not exclude(package):
+                    yield package
+
+                # Keep searching subdirectories, as there may be more packages
+                # down there, even if the parent was excluded.
+                dirs.append(dir)
+
+    @staticmethod
+    def _looks_like_package(path):
+        """Does a directory look like a package?"""
+        return os.path.isfile(os.path.join(path, '__init__.py'))
+
+    @staticmethod
+    def _build_filter(*patterns):
+        """
+        Given a list of patterns, return a callable that will be true only if
+        the input matches at least one of the patterns.
+        """
+        return lambda name: any(fnmatchcase(name, pat=pat) for pat in patterns)
+
+
+class PEP420PackageFinder(PackageFinder):
+    @staticmethod
+    def _looks_like_package(path):
+        return True
+
+
+find_packages = PackageFinder.find
+
+
+def _install_setup_requires(attrs):
+    # Note: do not use `setuptools.Distribution` directly, as
+    # our PEP 517 backend patch `distutils.core.Distribution`.
+    dist = distutils.core.Distribution(dict(
+        (k, v) for k, v in attrs.items()
+        if k in ('dependency_links', 'setup_requires')
+    ))
+    # Honor setup.cfg's options.
+    dist.parse_config_files(ignore_option_errors=True)
+    if dist.setup_requires:
+        dist.fetch_build_eggs(dist.setup_requires)
+
+
+def setup(**attrs):
+    # Make sure we have any requirements needed to interpret 'attrs'.
+    _install_setup_requires(attrs)
+    return distutils.core.setup(**attrs)
+
+setup.__doc__ = distutils.core.setup.__doc__
+
+
+_Command = monkey.get_unpatched(distutils.core.Command)
+
+
+class Command(_Command):
+    __doc__ = _Command.__doc__
+
+    command_consumes_arguments = False
+
+    def __init__(self, dist, **kw):
+        """
+        Construct the command for dist, updating
+        vars(self) with any keyword parameters.
+        """
+        _Command.__init__(self, dist)
+        vars(self).update(kw)
+
+    def reinitialize_command(self, command, reinit_subcommands=0, **kw):
+        cmd = _Command.reinitialize_command(self, command, reinit_subcommands)
+        vars(cmd).update(kw)
+        return cmd
+
+
+def _find_all_simple(path):
+    """
+    Find all files under 'path'
+    """
+    results = (
+        os.path.join(base, file)
+        for base, dirs, files in os.walk(path, followlinks=True)
+        for file in files
+    )
+    return filter(os.path.isfile, results)
+
+
+def findall(dir=os.curdir):
+    """
+    Find all files under 'dir' and return the list of full filenames.
+    Unless dir is '.', return full filenames with dir prepended.
+    """
+    files = _find_all_simple(dir)
+    if dir == os.curdir:
+        make_rel = functools.partial(os.path.relpath, start=dir)
+        files = map(make_rel, files)
+    return list(files)
+
+
+monkey.patch_all()
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@@ -0,0 +1,173 @@
+"""Utilities for extracting common archive formats"""
+
+import zipfile
+import tarfile
+import os
+import shutil
+import posixpath
+import contextlib
+from distutils.errors import DistutilsError
+
+from pkg_resources import ensure_directory
+
+__all__ = [
+    "unpack_archive", "unpack_zipfile", "unpack_tarfile", "default_filter",
+    "UnrecognizedFormat", "extraction_drivers", "unpack_directory",
+]
+
+
+class UnrecognizedFormat(DistutilsError):
+    """Couldn't recognize the archive type"""
+
+
+def default_filter(src, dst):
+    """The default progress/filter callback; returns True for all files"""
+    return dst
+
+
+def unpack_archive(filename, extract_dir, progress_filter=default_filter,
+        drivers=None):
+    """Unpack `filename` to `extract_dir`, or raise ``UnrecognizedFormat``
+
+    `progress_filter` is a function taking two arguments: a source path
+    internal to the archive ('/'-separated), and a filesystem path where it
+    will be extracted.  The callback must return the desired extract path
+    (which may be the same as the one passed in), or else ``None`` to skip
+    that file or directory.  The callback can thus be used to report on the
+    progress of the extraction, as well as to filter the items extracted or
+    alter their extraction paths.
+
+    `drivers`, if supplied, must be a non-empty sequence of functions with the
+    same signature as this function (minus the `drivers` argument), that raise
+    ``UnrecognizedFormat`` if they do not support extracting the designated
+    archive type.  The `drivers` are tried in sequence until one is found that
+    does not raise an error, or until all are exhausted (in which case
+    ``UnrecognizedFormat`` is raised).  If you do not supply a sequence of
+    drivers, the module's ``extraction_drivers`` constant will be used, which
+    means that ``unpack_zipfile`` and ``unpack_tarfile`` will be tried, in that
+    order.
+    """
+    for driver in drivers or extraction_drivers:
+        try:
+            driver(filename, extract_dir, progress_filter)
+        except UnrecognizedFormat:
+            continue
+        else:
+            return
+    else:
+        raise UnrecognizedFormat(
+            "Not a recognized archive type: %s" % filename
+        )
+
+
+def unpack_directory(filename, extract_dir, progress_filter=default_filter):
+    """"Unpack" a directory, using the same interface as for archives
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a directory
+    """
+    if not os.path.isdir(filename):
+        raise UnrecognizedFormat("%s is not a directory" % filename)
+
+    paths = {
+        filename: ('', extract_dir),
+    }
+    for base, dirs, files in os.walk(filename):
+        src, dst = paths[base]
+        for d in dirs:
+            paths[os.path.join(base, d)] = src + d + '/', os.path.join(dst, d)
+        for f in files:
+            target = os.path.join(dst, f)
+            target = progress_filter(src + f, target)
+            if not target:
+                # skip non-files
+                continue
+            ensure_directory(target)
+            f = os.path.join(base, f)
+            shutil.copyfile(f, target)
+            shutil.copystat(f, target)
+
+
+def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
+    """Unpack zip `filename` to `extract_dir`
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
+    by ``zipfile.is_zipfile()``).  See ``unpack_archive()`` for an explanation
+    of the `progress_filter` argument.
+    """
+
+    if not zipfile.is_zipfile(filename):
+        raise UnrecognizedFormat("%s is not a zip file" % (filename,))
+
+    with zipfile.ZipFile(filename) as z:
+        for info in z.infolist():
+            name = info.filename
+
+            # don't extract absolute paths or ones with .. in them
+            if name.startswith('/') or '..' in name.split('/'):
+                continue
+
+            target = os.path.join(extract_dir, *name.split('/'))
+            target = progress_filter(name, target)
+            if not target:
+                continue
+            if name.endswith('/'):
+                # directory
+                ensure_directory(target)
+            else:
+                # file
+                ensure_directory(target)
+                data = z.read(info.filename)
+                with open(target, 'wb') as f:
+                    f.write(data)
+            unix_attributes = info.external_attr >> 16
+            if unix_attributes:
+                os.chmod(target, unix_attributes)
+
+
+def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
+    """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a tarfile (as determined
+    by ``tarfile.open()``).  See ``unpack_archive()`` for an explanation
+    of the `progress_filter` argument.
+    """
+    try:
+        tarobj = tarfile.open(filename)
+    except tarfile.TarError:
+        raise UnrecognizedFormat(
+            "%s is not a compressed or uncompressed tar file" % (filename,)
+        )
+    with contextlib.closing(tarobj):
+        # don't do any chowning!
+        tarobj.chown = lambda *args: None
+        for member in tarobj:
+            name = member.name
+            # don't extract absolute paths or ones with .. in them
+            if not name.startswith('/') and '..' not in name.split('/'):
+                prelim_dst = os.path.join(extract_dir, *name.split('/'))
+
+                # resolve any links and to extract the link targets as normal
+                # files
+                while member is not None and (member.islnk() or member.issym()):
+                    linkpath = member.linkname
+                    if member.issym():
+                        base = posixpath.dirname(member.name)
+                        linkpath = posixpath.join(base, linkpath)
+                        linkpath = posixpath.normpath(linkpath)
+                    member = tarobj._getmember(linkpath)
+
+                if member is not None and (member.isfile() or member.isdir()):
+                    final_dst = progress_filter(name, prelim_dst)
+                    if final_dst:
+                        if final_dst.endswith(os.sep):
+                            final_dst = final_dst[:-1]
+                        try:
+                            # XXX Ugh
+                            tarobj._extract_member(member, final_dst)
+                        except tarfile.ExtractError:
+                            # chown/chmod/mkfifo/mknode/makedev failed
+                            pass
+        return True
+
+
+extraction_drivers = unpack_directory, unpack_zipfile, unpack_tarfile
diff --git a/venv/lib/python3.5/site-packages/setuptools/build_meta.py b/venv/lib/python3.5/site-packages/setuptools/build_meta.py
new file mode 100644
index 0000000..609ea1e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/build_meta.py
@@ -0,0 +1,172 @@
+"""A PEP 517 interface to setuptools
+
+Previously, when a user or a command line tool (let's call it a "frontend")
+needed to make a request of setuptools to take a certain action, for
+example, generating a list of installation requirements, the frontend would
+would call "setup.py egg_info" or "setup.py bdist_wheel" on the command line.
+
+PEP 517 defines a different method of interfacing with setuptools. Rather
+than calling "setup.py" directly, the frontend should:
+
+  1. Set the current directory to the directory with a setup.py file
+  2. Import this module into a safe python interpreter (one in which
+     setuptools can potentially set global variables or crash hard).
+  3. Call one of the functions defined in PEP 517.
+
+What each function does is defined in PEP 517. However, here is a "casual"
+definition of the functions (this definition should not be relied on for
+bug reports or API stability):
+
+  - `build_wheel`: build a wheel in the folder and return the basename
+  - `get_requires_for_build_wheel`: get the `setup_requires` to build
+  - `prepare_metadata_for_build_wheel`: get the `install_requires`
+  - `build_sdist`: build an sdist in the folder and return the basename
+  - `get_requires_for_build_sdist`: get the `setup_requires` to build
+
+Again, this is not a formal definition! Just a "taste" of the module.
+"""
+
+import os
+import sys
+import tokenize
+import shutil
+import contextlib
+
+import setuptools
+import distutils
+
+
+class SetupRequirementsError(BaseException):
+    def __init__(self, specifiers):
+        self.specifiers = specifiers
+
+
+class Distribution(setuptools.dist.Distribution):
+    def fetch_build_eggs(self, specifiers):
+        raise SetupRequirementsError(specifiers)
+
+    @classmethod
+    @contextlib.contextmanager
+    def patch(cls):
+        """
+        Replace
+        distutils.dist.Distribution with this class
+        for the duration of this context.
+        """
+        orig = distutils.core.Distribution
+        distutils.core.Distribution = cls
+        try:
+            yield
+        finally:
+            distutils.core.Distribution = orig
+
+
+def _run_setup(setup_script='setup.py'):
+    # Note that we can reuse our build directory between calls
+    # Correctness comes first, then optimization later
+    __file__ = setup_script
+    __name__ = '__main__'
+    f = getattr(tokenize, 'open', open)(__file__)
+    code = f.read().replace('\\r\\n', '\\n')
+    f.close()
+    exec(compile(code, __file__, 'exec'), locals())
+
+
+def _fix_config(config_settings):
+    config_settings = config_settings or {}
+    config_settings.setdefault('--global-option', [])
+    return config_settings
+
+
+def _get_build_requires(config_settings):
+    config_settings = _fix_config(config_settings)
+    requirements = ['setuptools', 'wheel']
+
+    sys.argv = sys.argv[:1] + ['egg_info'] + \
+        config_settings["--global-option"]
+    try:
+        with Distribution.patch():
+            _run_setup()
+    except SetupRequirementsError as e:
+        requirements += e.specifiers
+
+    return requirements
+
+
+def _get_immediate_subdirectories(a_dir):
+    return [name for name in os.listdir(a_dir)
+            if os.path.isdir(os.path.join(a_dir, name))]
+
+
+def get_requires_for_build_wheel(config_settings=None):
+    config_settings = _fix_config(config_settings)
+    return _get_build_requires(config_settings)
+
+
+def get_requires_for_build_sdist(config_settings=None):
+    config_settings = _fix_config(config_settings)
+    return _get_build_requires(config_settings)
+
+
+def prepare_metadata_for_build_wheel(metadata_directory, config_settings=None):
+    sys.argv = sys.argv[:1] + ['dist_info', '--egg-base', metadata_directory]
+    _run_setup()
+    
+    dist_info_directory = metadata_directory
+    while True:    
+        dist_infos = [f for f in os.listdir(dist_info_directory)
+                      if f.endswith('.dist-info')]
+
+        if len(dist_infos) == 0 and \
+                len(_get_immediate_subdirectories(dist_info_directory)) == 1:
+            dist_info_directory = os.path.join(
+                dist_info_directory, os.listdir(dist_info_directory)[0])
+            continue
+
+        assert len(dist_infos) == 1
+        break
+
+    # PEP 517 requires that the .dist-info directory be placed in the
+    # metadata_directory. To comply, we MUST copy the directory to the root
+    if dist_info_directory != metadata_directory:
+        shutil.move(
+            os.path.join(dist_info_directory, dist_infos[0]),
+            metadata_directory)
+        shutil.rmtree(dist_info_directory, ignore_errors=True)
+
+    return dist_infos[0]
+
+
+def build_wheel(wheel_directory, config_settings=None,
+                metadata_directory=None):
+    config_settings = _fix_config(config_settings)
+    wheel_directory = os.path.abspath(wheel_directory)
+    sys.argv = sys.argv[:1] + ['bdist_wheel'] + \
+        config_settings["--global-option"]
+    _run_setup()
+    if wheel_directory != 'dist':
+        shutil.rmtree(wheel_directory)
+        shutil.copytree('dist', wheel_directory)
+
+    wheels = [f for f in os.listdir(wheel_directory)
+              if f.endswith('.whl')]
+
+    assert len(wheels) == 1
+    return wheels[0]
+
+
+def build_sdist(sdist_directory, config_settings=None):
+    config_settings = _fix_config(config_settings)
+    sdist_directory = os.path.abspath(sdist_directory)
+    sys.argv = sys.argv[:1] + ['sdist'] + \
+        config_settings["--global-option"]
+    _run_setup()
+    if sdist_directory != 'dist':
+        shutil.rmtree(sdist_directory)
+        shutil.copytree('dist', sdist_directory)
+
+    sdists = [f for f in os.listdir(sdist_directory)
+              if f.endswith('.tar.gz')]
+
+    assert len(sdists) == 1
+    return sdists[0]
diff --git a/venv/lib/python3.5/site-packages/setuptools/cli-32.exe b/venv/lib/python3.5/site-packages/setuptools/cli-32.exe
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diff --git a/venv/lib/python3.5/site-packages/setuptools/command/__init__.py b/venv/lib/python3.5/site-packages/setuptools/command/__init__.py
new file mode 100644
index 0000000..fe619e2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/__init__.py
@@ -0,0 +1,18 @@
+__all__ = [
+    'alias', 'bdist_egg', 'bdist_rpm', 'build_ext', 'build_py', 'develop',
+    'easy_install', 'egg_info', 'install', 'install_lib', 'rotate', 'saveopts',
+    'sdist', 'setopt', 'test', 'install_egg_info', 'install_scripts',
+    'register', 'bdist_wininst', 'upload_docs', 'upload', 'build_clib',
+    'dist_info',
+]
+
+from distutils.command.bdist import bdist
+import sys
+
+from setuptools.command import install_scripts
+
+if 'egg' not in bdist.format_commands:
+    bdist.format_command['egg'] = ('bdist_egg', "Python .egg file")
+    bdist.format_commands.append('egg')
+
+del bdist, sys
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diff --git a/venv/lib/python3.5/site-packages/setuptools/command/alias.py b/venv/lib/python3.5/site-packages/setuptools/command/alias.py
new file mode 100644
index 0000000..4532b1c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/alias.py
@@ -0,0 +1,80 @@
+from distutils.errors import DistutilsOptionError
+
+from setuptools.extern.six.moves import map
+
+from setuptools.command.setopt import edit_config, option_base, config_file
+
+
+def shquote(arg):
+    """Quote an argument for later parsing by shlex.split()"""
+    for c in '"', "'", "\\", "#":
+        if c in arg:
+            return repr(arg)
+    if arg.split() != [arg]:
+        return repr(arg)
+    return arg
+
+
+class alias(option_base):
+    """Define a shortcut that invokes one or more commands"""
+
+    description = "define a shortcut to invoke one or more commands"
+    command_consumes_arguments = True
+
+    user_options = [
+        ('remove', 'r', 'remove (unset) the alias'),
+    ] + option_base.user_options
+
+    boolean_options = option_base.boolean_options + ['remove']
+
+    def initialize_options(self):
+        option_base.initialize_options(self)
+        self.args = None
+        self.remove = None
+
+    def finalize_options(self):
+        option_base.finalize_options(self)
+        if self.remove and len(self.args) != 1:
+            raise DistutilsOptionError(
+                "Must specify exactly one argument (the alias name) when "
+                "using --remove"
+            )
+
+    def run(self):
+        aliases = self.distribution.get_option_dict('aliases')
+
+        if not self.args:
+            print("Command Aliases")
+            print("---------------")
+            for alias in aliases:
+                print("setup.py alias", format_alias(alias, aliases))
+            return
+
+        elif len(self.args) == 1:
+            alias, = self.args
+            if self.remove:
+                command = None
+            elif alias in aliases:
+                print("setup.py alias", format_alias(alias, aliases))
+                return
+            else:
+                print("No alias definition found for %r" % alias)
+                return
+        else:
+            alias = self.args[0]
+            command = ' '.join(map(shquote, self.args[1:]))
+
+        edit_config(self.filename, {'aliases': {alias: command}}, self.dry_run)
+
+
+def format_alias(name, aliases):
+    source, command = aliases[name]
+    if source == config_file('global'):
+        source = '--global-config '
+    elif source == config_file('user'):
+        source = '--user-config '
+    elif source == config_file('local'):
+        source = ''
+    else:
+        source = '--filename=%r' % source
+    return source + name + ' ' + command
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/bdist_egg.py b/venv/lib/python3.5/site-packages/setuptools/command/bdist_egg.py
new file mode 100644
index 0000000..5fdb62d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/bdist_egg.py
@@ -0,0 +1,496 @@
+"""setuptools.command.bdist_egg
+
+Build .egg distributions"""
+
+from distutils.errors import DistutilsSetupError
+from distutils.dir_util import remove_tree, mkpath
+from distutils import log
+from types import CodeType
+import sys
+import os
+import re
+import textwrap
+import marshal
+
+from setuptools.extern import six
+
+from pkg_resources import get_build_platform, Distribution, ensure_directory
+from pkg_resources import EntryPoint
+from setuptools.extension import Library
+from setuptools import Command
+
+try:
+    # Python 2.7 or >=3.2
+    from sysconfig import get_path, get_python_version
+
+    def _get_purelib():
+        return get_path("purelib")
+except ImportError:
+    from distutils.sysconfig import get_python_lib, get_python_version
+
+    def _get_purelib():
+        return get_python_lib(False)
+
+
+def strip_module(filename):
+    if '.' in filename:
+        filename = os.path.splitext(filename)[0]
+    if filename.endswith('module'):
+        filename = filename[:-6]
+    return filename
+
+def sorted_walk(dir):
+    """Do os.walk in a reproducible way,
+    independent of indeterministic filesystem readdir order
+    """
+    for base, dirs, files in os.walk(dir):
+        dirs.sort()
+        files.sort()
+        yield base, dirs, files
+
+def write_stub(resource, pyfile):
+    _stub_template = textwrap.dedent("""
+        def __bootstrap__():
+            global __bootstrap__, __loader__, __file__
+            import sys, pkg_resources, imp
+            __file__ = pkg_resources.resource_filename(__name__, %r)
+            __loader__ = None; del __bootstrap__, __loader__
+            imp.load_dynamic(__name__,__file__)
+        __bootstrap__()
+        """).lstrip()
+    with open(pyfile, 'w') as f:
+        f.write(_stub_template % resource)
+
+
+class bdist_egg(Command):
+    description = "create an \"egg\" distribution"
+
+    user_options = [
+        ('bdist-dir=', 'b',
+         "temporary directory for creating the distribution"),
+        ('plat-name=', 'p', "platform name to embed in generated filenames "
+                            "(default: %s)" % get_build_platform()),
+        ('exclude-source-files', None,
+         "remove all .py files from the generated egg"),
+        ('keep-temp', 'k',
+         "keep the pseudo-installation tree around after " +
+         "creating the distribution archive"),
+        ('dist-dir=', 'd',
+         "directory to put final built distributions in"),
+        ('skip-build', None,
+         "skip rebuilding everything (for testing/debugging)"),
+    ]
+
+    boolean_options = [
+        'keep-temp', 'skip-build', 'exclude-source-files'
+    ]
+
+    def initialize_options(self):
+        self.bdist_dir = None
+        self.plat_name = None
+        self.keep_temp = 0
+        self.dist_dir = None
+        self.skip_build = 0
+        self.egg_output = None
+        self.exclude_source_files = None
+
+    def finalize_options(self):
+        ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
+        self.egg_info = ei_cmd.egg_info
+
+        if self.bdist_dir is None:
+            bdist_base = self.get_finalized_command('bdist').bdist_base
+            self.bdist_dir = os.path.join(bdist_base, 'egg')
+
+        if self.plat_name is None:
+            self.plat_name = get_build_platform()
+
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
+
+        if self.egg_output is None:
+
+            # Compute filename of the output egg
+            basename = Distribution(
+                None, None, ei_cmd.egg_name, ei_cmd.egg_version,
+                get_python_version(),
+                self.distribution.has_ext_modules() and self.plat_name
+            ).egg_name()
+
+            self.egg_output = os.path.join(self.dist_dir, basename + '.egg')
+
+    def do_install_data(self):
+        # Hack for packages that install data to install's --install-lib
+        self.get_finalized_command('install').install_lib = self.bdist_dir
+
+        site_packages = os.path.normcase(os.path.realpath(_get_purelib()))
+        old, self.distribution.data_files = self.distribution.data_files, []
+
+        for item in old:
+            if isinstance(item, tuple) and len(item) == 2:
+                if os.path.isabs(item[0]):
+                    realpath = os.path.realpath(item[0])
+                    normalized = os.path.normcase(realpath)
+                    if normalized == site_packages or normalized.startswith(
+                        site_packages + os.sep
+                    ):
+                        item = realpath[len(site_packages) + 1:], item[1]
+                        # XXX else: raise ???
+            self.distribution.data_files.append(item)
+
+        try:
+            log.info("installing package data to %s", self.bdist_dir)
+            self.call_command('install_data', force=0, root=None)
+        finally:
+            self.distribution.data_files = old
+
+    def get_outputs(self):
+        return [self.egg_output]
+
+    def call_command(self, cmdname, **kw):
+        """Invoke reinitialized command `cmdname` with keyword args"""
+        for dirname in INSTALL_DIRECTORY_ATTRS:
+            kw.setdefault(dirname, self.bdist_dir)
+        kw.setdefault('skip_build', self.skip_build)
+        kw.setdefault('dry_run', self.dry_run)
+        cmd = self.reinitialize_command(cmdname, **kw)
+        self.run_command(cmdname)
+        return cmd
+
+    def run(self):
+        # Generate metadata first
+        self.run_command("egg_info")
+        # We run install_lib before install_data, because some data hacks
+        # pull their data path from the install_lib command.
+        log.info("installing library code to %s", self.bdist_dir)
+        instcmd = self.get_finalized_command('install')
+        old_root = instcmd.root
+        instcmd.root = None
+        if self.distribution.has_c_libraries() and not self.skip_build:
+            self.run_command('build_clib')
+        cmd = self.call_command('install_lib', warn_dir=0)
+        instcmd.root = old_root
+
+        all_outputs, ext_outputs = self.get_ext_outputs()
+        self.stubs = []
+        to_compile = []
+        for (p, ext_name) in enumerate(ext_outputs):
+            filename, ext = os.path.splitext(ext_name)
+            pyfile = os.path.join(self.bdist_dir, strip_module(filename) +
+                                  '.py')
+            self.stubs.append(pyfile)
+            log.info("creating stub loader for %s", ext_name)
+            if not self.dry_run:
+                write_stub(os.path.basename(ext_name), pyfile)
+            to_compile.append(pyfile)
+            ext_outputs[p] = ext_name.replace(os.sep, '/')
+
+        if to_compile:
+            cmd.byte_compile(to_compile)
+        if self.distribution.data_files:
+            self.do_install_data()
+
+        # Make the EGG-INFO directory
+        archive_root = self.bdist_dir
+        egg_info = os.path.join(archive_root, 'EGG-INFO')
+        self.mkpath(egg_info)
+        if self.distribution.scripts:
+            script_dir = os.path.join(egg_info, 'scripts')
+            log.info("installing scripts to %s", script_dir)
+            self.call_command('install_scripts', install_dir=script_dir,
+                              no_ep=1)
+
+        self.copy_metadata_to(egg_info)
+        native_libs = os.path.join(egg_info, "native_libs.txt")
+        if all_outputs:
+            log.info("writing %s", native_libs)
+            if not self.dry_run:
+                ensure_directory(native_libs)
+                libs_file = open(native_libs, 'wt')
+                libs_file.write('\n'.join(all_outputs))
+                libs_file.write('\n')
+                libs_file.close()
+        elif os.path.isfile(native_libs):
+            log.info("removing %s", native_libs)
+            if not self.dry_run:
+                os.unlink(native_libs)
+
+        write_safety_flag(
+            os.path.join(archive_root, 'EGG-INFO'), self.zip_safe()
+        )
+
+        if os.path.exists(os.path.join(self.egg_info, 'depends.txt')):
+            log.warn(
+                "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
+                "Use the install_requires/extras_require setup() args instead."
+            )
+
+        if self.exclude_source_files:
+            self.zap_pyfiles()
+
+        # Make the archive
+        make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
+                     dry_run=self.dry_run, mode=self.gen_header())
+        if not self.keep_temp:
+            remove_tree(self.bdist_dir, dry_run=self.dry_run)
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, 'dist_files', []).append(
+            ('bdist_egg', get_python_version(), self.egg_output))
+
+    def zap_pyfiles(self):
+        log.info("Removing .py files from temporary directory")
+        for base, dirs, files in walk_egg(self.bdist_dir):
+            for name in files:
+                path = os.path.join(base, name)
+
+                if name.endswith('.py'):
+                    log.debug("Deleting %s", path)
+                    os.unlink(path)
+
+                if base.endswith('__pycache__'):
+                    path_old = path
+
+                    pattern = r'(?P<name>.+)\.(?P<magic>[^.]+)\.pyc'
+                    m = re.match(pattern, name)
+                    path_new = os.path.join(base, os.pardir, m.group('name') + '.pyc')
+                    log.info("Renaming file from [%s] to [%s]" % (path_old, path_new))
+                    try:
+                        os.remove(path_new)
+                    except OSError:
+                        pass
+                    os.rename(path_old, path_new)
+
+
+    def zip_safe(self):
+        safe = getattr(self.distribution, 'zip_safe', None)
+        if safe is not None:
+            return safe
+        log.warn("zip_safe flag not set; analyzing archive contents...")
+        return analyze_egg(self.bdist_dir, self.stubs)
+
+    def gen_header(self):
+        epm = EntryPoint.parse_map(self.distribution.entry_points or '')
+        ep = epm.get('setuptools.installation', {}).get('eggsecutable')
+        if ep is None:
+            return 'w'  # not an eggsecutable, do it the usual way.
+
+        if not ep.attrs or ep.extras:
+            raise DistutilsSetupError(
+                "eggsecutable entry point (%r) cannot have 'extras' "
+                "or refer to a module" % (ep,)
+            )
+
+        pyver = sys.version[:3]
+        pkg = ep.module_name
+        full = '.'.join(ep.attrs)
+        base = ep.attrs[0]
+        basename = os.path.basename(self.egg_output)
+
+        header = (
+            "#!/bin/sh\n"
+            'if [ `basename $0` = "%(basename)s" ]\n'
+            'then exec python%(pyver)s -c "'
+            "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
+            "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
+            '" "$@"\n'
+            'else\n'
+            '  echo $0 is not the correct name for this egg file.\n'
+            '  echo Please rename it back to %(basename)s and try again.\n'
+            '  exec false\n'
+            'fi\n'
+        ) % locals()
+
+        if not self.dry_run:
+            mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
+            f = open(self.egg_output, 'w')
+            f.write(header)
+            f.close()
+        return 'a'
+
+    def copy_metadata_to(self, target_dir):
+        "Copy metadata (egg info) to the target_dir"
+        # normalize the path (so that a forward-slash in egg_info will
+        # match using startswith below)
+        norm_egg_info = os.path.normpath(self.egg_info)
+        prefix = os.path.join(norm_egg_info, '')
+        for path in self.ei_cmd.filelist.files:
+            if path.startswith(prefix):
+                target = os.path.join(target_dir, path[len(prefix):])
+                ensure_directory(target)
+                self.copy_file(path, target)
+
+    def get_ext_outputs(self):
+        """Get a list of relative paths to C extensions in the output distro"""
+
+        all_outputs = []
+        ext_outputs = []
+
+        paths = {self.bdist_dir: ''}
+        for base, dirs, files in sorted_walk(self.bdist_dir):
+            for filename in files:
+                if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
+                    all_outputs.append(paths[base] + filename)
+            for filename in dirs:
+                paths[os.path.join(base, filename)] = (paths[base] +
+                                                       filename + '/')
+
+        if self.distribution.has_ext_modules():
+            build_cmd = self.get_finalized_command('build_ext')
+            for ext in build_cmd.extensions:
+                if isinstance(ext, Library):
+                    continue
+                fullname = build_cmd.get_ext_fullname(ext.name)
+                filename = build_cmd.get_ext_filename(fullname)
+                if not os.path.basename(filename).startswith('dl-'):
+                    if os.path.exists(os.path.join(self.bdist_dir, filename)):
+                        ext_outputs.append(filename)
+
+        return all_outputs, ext_outputs
+
+
+NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())
+
+
+def walk_egg(egg_dir):
+    """Walk an unpacked egg's contents, skipping the metadata directory"""
+    walker = sorted_walk(egg_dir)
+    base, dirs, files = next(walker)
+    if 'EGG-INFO' in dirs:
+        dirs.remove('EGG-INFO')
+    yield base, dirs, files
+    for bdf in walker:
+        yield bdf
+
+
+def analyze_egg(egg_dir, stubs):
+    # check for existing flag in EGG-INFO
+    for flag, fn in safety_flags.items():
+        if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)):
+            return flag
+    if not can_scan():
+        return False
+    safe = True
+    for base, dirs, files in walk_egg(egg_dir):
+        for name in files:
+            if name.endswith('.py') or name.endswith('.pyw'):
+                continue
+            elif name.endswith('.pyc') or name.endswith('.pyo'):
+                # always scan, even if we already know we're not safe
+                safe = scan_module(egg_dir, base, name, stubs) and safe
+    return safe
+
+
+def write_safety_flag(egg_dir, safe):
+    # Write or remove zip safety flag file(s)
+    for flag, fn in safety_flags.items():
+        fn = os.path.join(egg_dir, fn)
+        if os.path.exists(fn):
+            if safe is None or bool(safe) != flag:
+                os.unlink(fn)
+        elif safe is not None and bool(safe) == flag:
+            f = open(fn, 'wt')
+            f.write('\n')
+            f.close()
+
+
+safety_flags = {
+    True: 'zip-safe',
+    False: 'not-zip-safe',
+}
+
+
+def scan_module(egg_dir, base, name, stubs):
+    """Check whether module possibly uses unsafe-for-zipfile stuff"""
+
+    filename = os.path.join(base, name)
+    if filename[:-1] in stubs:
+        return True  # Extension module
+    pkg = base[len(egg_dir) + 1:].replace(os.sep, '.')
+    module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0]
+    if sys.version_info < (3, 3):
+        skip = 8  # skip magic & date
+    else:
+        skip = 12  # skip magic & date & file size
+    f = open(filename, 'rb')
+    f.read(skip)
+    code = marshal.load(f)
+    f.close()
+    safe = True
+    symbols = dict.fromkeys(iter_symbols(code))
+    for bad in ['__file__', '__path__']:
+        if bad in symbols:
+            log.warn("%s: module references %s", module, bad)
+            safe = False
+    if 'inspect' in symbols:
+        for bad in [
+            'getsource', 'getabsfile', 'getsourcefile', 'getfile'
+            'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
+            'getinnerframes', 'getouterframes', 'stack', 'trace'
+        ]:
+            if bad in symbols:
+                log.warn("%s: module MAY be using inspect.%s", module, bad)
+                safe = False
+    return safe
+
+
+def iter_symbols(code):
+    """Yield names and strings used by `code` and its nested code objects"""
+    for name in code.co_names:
+        yield name
+    for const in code.co_consts:
+        if isinstance(const, six.string_types):
+            yield const
+        elif isinstance(const, CodeType):
+            for name in iter_symbols(const):
+                yield name
+
+
+def can_scan():
+    if not sys.platform.startswith('java') and sys.platform != 'cli':
+        # CPython, PyPy, etc.
+        return True
+    log.warn("Unable to analyze compiled code on this platform.")
+    log.warn("Please ask the author to include a 'zip_safe'"
+             " setting (either True or False) in the package's setup.py")
+
+
+# Attribute names of options for commands that might need to be convinced to
+# install to the egg build directory
+
+INSTALL_DIRECTORY_ATTRS = [
+    'install_lib', 'install_dir', 'install_data', 'install_base'
+]
+
+
+def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=True,
+                 mode='w'):
+    """Create a zip file from all the files under 'base_dir'.  The output
+    zip file will be named 'base_dir' + ".zip".  Uses either the "zipfile"
+    Python module (if available) or the InfoZIP "zip" utility (if installed
+    and found on the default search path).  If neither tool is available,
+    raises DistutilsExecError.  Returns the name of the output zip file.
+    """
+    import zipfile
+
+    mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
+    log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
+
+    def visit(z, dirname, names):
+        for name in names:
+            path = os.path.normpath(os.path.join(dirname, name))
+            if os.path.isfile(path):
+                p = path[len(base_dir) + 1:]
+                if not dry_run:
+                    z.write(path, p)
+                log.debug("adding '%s'", p)
+
+    compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED
+    if not dry_run:
+        z = zipfile.ZipFile(zip_filename, mode, compression=compression)
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(z, dirname, files)
+        z.close()
+    else:
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(None, dirname, files)
+    return zip_filename
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py b/venv/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py
new file mode 100644
index 0000000..7073092
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py
@@ -0,0 +1,43 @@
+import distutils.command.bdist_rpm as orig
+
+
+class bdist_rpm(orig.bdist_rpm):
+    """
+    Override the default bdist_rpm behavior to do the following:
+
+    1. Run egg_info to ensure the name and version are properly calculated.
+    2. Always run 'install' using --single-version-externally-managed to
+       disable eggs in RPM distributions.
+    3. Replace dash with underscore in the version numbers for better RPM
+       compatibility.
+    """
+
+    def run(self):
+        # ensure distro name is up-to-date
+        self.run_command('egg_info')
+
+        orig.bdist_rpm.run(self)
+
+    def _make_spec_file(self):
+        version = self.distribution.get_version()
+        rpmversion = version.replace('-', '_')
+        spec = orig.bdist_rpm._make_spec_file(self)
+        line23 = '%define version ' + version
+        line24 = '%define version ' + rpmversion
+        spec = [
+            line.replace(
+                "Source0: %{name}-%{version}.tar",
+                "Source0: %{name}-%{unmangled_version}.tar"
+            ).replace(
+                "setup.py install ",
+                "setup.py install --single-version-externally-managed "
+            ).replace(
+                "%setup",
+                "%setup -n %{name}-%{unmangled_version}"
+            ).replace(line23, line24)
+            for line in spec
+        ]
+        insert_loc = spec.index(line24) + 1
+        unmangled_version = "%define unmangled_version " + version
+        spec.insert(insert_loc, unmangled_version)
+        return spec
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py b/venv/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py
new file mode 100644
index 0000000..073de97
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py
@@ -0,0 +1,21 @@
+import distutils.command.bdist_wininst as orig
+
+
+class bdist_wininst(orig.bdist_wininst):
+    def reinitialize_command(self, command, reinit_subcommands=0):
+        """
+        Supplement reinitialize_command to work around
+        http://bugs.python.org/issue20819
+        """
+        cmd = self.distribution.reinitialize_command(
+            command, reinit_subcommands)
+        if command in ('install', 'install_lib'):
+            cmd.install_lib = None
+        return cmd
+
+    def run(self):
+        self._is_running = True
+        try:
+            orig.bdist_wininst.run(self)
+        finally:
+            self._is_running = False
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/build_clib.py b/venv/lib/python3.5/site-packages/setuptools/command/build_clib.py
new file mode 100644
index 0000000..09caff6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/build_clib.py
@@ -0,0 +1,98 @@
+import distutils.command.build_clib as orig
+from distutils.errors import DistutilsSetupError
+from distutils import log
+from setuptools.dep_util import newer_pairwise_group
+
+
+class build_clib(orig.build_clib):
+    """
+    Override the default build_clib behaviour to do the following:
+
+    1. Implement a rudimentary timestamp-based dependency system
+       so 'compile()' doesn't run every time.
+    2. Add more keys to the 'build_info' dictionary:
+        * obj_deps - specify dependencies for each object compiled.
+                     this should be a dictionary mapping a key
+                     with the source filename to a list of
+                     dependencies. Use an empty string for global
+                     dependencies.
+        * cflags   - specify a list of additional flags to pass to
+                     the compiler.
+    """
+
+    def build_libraries(self, libraries):
+        for (lib_name, build_info) in libraries:
+            sources = build_info.get('sources')
+            if sources is None or not isinstance(sources, (list, tuple)):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'sources' must be present and must be "
+                       "a list of source filenames" % lib_name)
+            sources = list(sources)
+
+            log.info("building '%s' library", lib_name)
+
+            # Make sure everything is the correct type.
+            # obj_deps should be a dictionary of keys as sources
+            # and a list/tuple of files that are its dependencies.
+            obj_deps = build_info.get('obj_deps', dict())
+            if not isinstance(obj_deps, dict):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'obj_deps' must be a dictionary of "
+                       "type 'source: list'" % lib_name)
+            dependencies = []
+
+            # Get the global dependencies that are specified by the '' key.
+            # These will go into every source's dependency list.
+            global_deps = obj_deps.get('', list())
+            if not isinstance(global_deps, (list, tuple)):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'obj_deps' must be a dictionary of "
+                       "type 'source: list'" % lib_name)
+
+            # Build the list to be used by newer_pairwise_group
+            # each source will be auto-added to its dependencies.
+            for source in sources:
+                src_deps = [source]
+                src_deps.extend(global_deps)
+                extra_deps = obj_deps.get(source, list())
+                if not isinstance(extra_deps, (list, tuple)):
+                    raise DistutilsSetupError(
+                           "in 'libraries' option (library '%s'), "
+                           "'obj_deps' must be a dictionary of "
+                           "type 'source: list'" % lib_name)
+                src_deps.extend(extra_deps)
+                dependencies.append(src_deps)
+
+            expected_objects = self.compiler.object_filenames(
+                    sources,
+                    output_dir=self.build_temp
+                    )
+
+            if newer_pairwise_group(dependencies, expected_objects) != ([], []):
+                # First, compile the source code to object files in the library
+                # directory.  (This should probably change to putting object
+                # files in a temporary build directory.)
+                macros = build_info.get('macros')
+                include_dirs = build_info.get('include_dirs')
+                cflags = build_info.get('cflags')
+                objects = self.compiler.compile(
+                        sources,
+                        output_dir=self.build_temp,
+                        macros=macros,
+                        include_dirs=include_dirs,
+                        extra_postargs=cflags,
+                        debug=self.debug
+                        )
+
+            # Now "link" the object files together into a static library.
+            # (On Unix at least, this isn't really linking -- it just
+            # builds an archive.  Whatever.)
+            self.compiler.create_static_lib(
+                    expected_objects,
+                    lib_name,
+                    output_dir=self.build_clib,
+                    debug=self.debug
+                    )
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/build_ext.py b/venv/lib/python3.5/site-packages/setuptools/command/build_ext.py
new file mode 100644
index 0000000..36f53f0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/build_ext.py
@@ -0,0 +1,328 @@
+import os
+import sys
+import itertools
+import imp
+from distutils.command.build_ext import build_ext as _du_build_ext
+from distutils.file_util import copy_file
+from distutils.ccompiler import new_compiler
+from distutils.sysconfig import customize_compiler, get_config_var
+from distutils.errors import DistutilsError
+from distutils import log
+
+from setuptools.extension import Library
+from setuptools.extern import six
+
+try:
+    # Attempt to use Cython for building extensions, if available
+    from Cython.Distutils.build_ext import build_ext as _build_ext
+except ImportError:
+    _build_ext = _du_build_ext
+
+# make sure _config_vars is initialized
+get_config_var("LDSHARED")
+from distutils.sysconfig import _config_vars as _CONFIG_VARS
+
+
+def _customize_compiler_for_shlib(compiler):
+    if sys.platform == "darwin":
+        # building .dylib requires additional compiler flags on OSX; here we
+        # temporarily substitute the pyconfig.h variables so that distutils'
+        # 'customize_compiler' uses them before we build the shared libraries.
+        tmp = _CONFIG_VARS.copy()
+        try:
+            # XXX Help!  I don't have any idea whether these are right...
+            _CONFIG_VARS['LDSHARED'] = (
+                "gcc -Wl,-x -dynamiclib -undefined dynamic_lookup")
+            _CONFIG_VARS['CCSHARED'] = " -dynamiclib"
+            _CONFIG_VARS['SO'] = ".dylib"
+            customize_compiler(compiler)
+        finally:
+            _CONFIG_VARS.clear()
+            _CONFIG_VARS.update(tmp)
+    else:
+        customize_compiler(compiler)
+
+
+have_rtld = False
+use_stubs = False
+libtype = 'shared'
+
+if sys.platform == "darwin":
+    use_stubs = True
+elif os.name != 'nt':
+    try:
+        import dl
+        use_stubs = have_rtld = hasattr(dl, 'RTLD_NOW')
+    except ImportError:
+        pass
+
+if_dl = lambda s: s if have_rtld else ''
+
+
+def get_abi3_suffix():
+    """Return the file extension for an abi3-compliant Extension()"""
+    for suffix, _, _ in (s for s in imp.get_suffixes() if s[2] == imp.C_EXTENSION):
+        if '.abi3' in suffix:  # Unix
+            return suffix
+        elif suffix == '.pyd':  # Windows
+            return suffix
+
+
+class build_ext(_build_ext):
+    def run(self):
+        """Build extensions in build directory, then copy if --inplace"""
+        old_inplace, self.inplace = self.inplace, 0
+        _build_ext.run(self)
+        self.inplace = old_inplace
+        if old_inplace:
+            self.copy_extensions_to_source()
+
+    def copy_extensions_to_source(self):
+        build_py = self.get_finalized_command('build_py')
+        for ext in self.extensions:
+            fullname = self.get_ext_fullname(ext.name)
+            filename = self.get_ext_filename(fullname)
+            modpath = fullname.split('.')
+            package = '.'.join(modpath[:-1])
+            package_dir = build_py.get_package_dir(package)
+            dest_filename = os.path.join(package_dir,
+                                         os.path.basename(filename))
+            src_filename = os.path.join(self.build_lib, filename)
+
+            # Always copy, even if source is older than destination, to ensure
+            # that the right extensions for the current Python/platform are
+            # used.
+            copy_file(
+                src_filename, dest_filename, verbose=self.verbose,
+                dry_run=self.dry_run
+            )
+            if ext._needs_stub:
+                self.write_stub(package_dir or os.curdir, ext, True)
+
+    def get_ext_filename(self, fullname):
+        filename = _build_ext.get_ext_filename(self, fullname)
+        if fullname in self.ext_map:
+            ext = self.ext_map[fullname]
+            use_abi3 = (
+                six.PY3
+                and getattr(ext, 'py_limited_api')
+                and get_abi3_suffix()
+            )
+            if use_abi3:
+                so_ext = _get_config_var_837('EXT_SUFFIX')
+                filename = filename[:-len(so_ext)]
+                filename = filename + get_abi3_suffix()
+            if isinstance(ext, Library):
+                fn, ext = os.path.splitext(filename)
+                return self.shlib_compiler.library_filename(fn, libtype)
+            elif use_stubs and ext._links_to_dynamic:
+                d, fn = os.path.split(filename)
+                return os.path.join(d, 'dl-' + fn)
+        return filename
+
+    def initialize_options(self):
+        _build_ext.initialize_options(self)
+        self.shlib_compiler = None
+        self.shlibs = []
+        self.ext_map = {}
+
+    def finalize_options(self):
+        _build_ext.finalize_options(self)
+        self.extensions = self.extensions or []
+        self.check_extensions_list(self.extensions)
+        self.shlibs = [ext for ext in self.extensions
+                       if isinstance(ext, Library)]
+        if self.shlibs:
+            self.setup_shlib_compiler()
+        for ext in self.extensions:
+            ext._full_name = self.get_ext_fullname(ext.name)
+        for ext in self.extensions:
+            fullname = ext._full_name
+            self.ext_map[fullname] = ext
+
+            # distutils 3.1 will also ask for module names
+            # XXX what to do with conflicts?
+            self.ext_map[fullname.split('.')[-1]] = ext
+
+            ltd = self.shlibs and self.links_to_dynamic(ext) or False
+            ns = ltd and use_stubs and not isinstance(ext, Library)
+            ext._links_to_dynamic = ltd
+            ext._needs_stub = ns
+            filename = ext._file_name = self.get_ext_filename(fullname)
+            libdir = os.path.dirname(os.path.join(self.build_lib, filename))
+            if ltd and libdir not in ext.library_dirs:
+                ext.library_dirs.append(libdir)
+            if ltd and use_stubs and os.curdir not in ext.runtime_library_dirs:
+                ext.runtime_library_dirs.append(os.curdir)
+
+    def setup_shlib_compiler(self):
+        compiler = self.shlib_compiler = new_compiler(
+            compiler=self.compiler, dry_run=self.dry_run, force=self.force
+        )
+        _customize_compiler_for_shlib(compiler)
+
+        if self.include_dirs is not None:
+            compiler.set_include_dirs(self.include_dirs)
+        if self.define is not None:
+            # 'define' option is a list of (name,value) tuples
+            for (name, value) in self.define:
+                compiler.define_macro(name, value)
+        if self.undef is not None:
+            for macro in self.undef:
+                compiler.undefine_macro(macro)
+        if self.libraries is not None:
+            compiler.set_libraries(self.libraries)
+        if self.library_dirs is not None:
+            compiler.set_library_dirs(self.library_dirs)
+        if self.rpath is not None:
+            compiler.set_runtime_library_dirs(self.rpath)
+        if self.link_objects is not None:
+            compiler.set_link_objects(self.link_objects)
+
+        # hack so distutils' build_extension() builds a library instead
+        compiler.link_shared_object = link_shared_object.__get__(compiler)
+
+    def get_export_symbols(self, ext):
+        if isinstance(ext, Library):
+            return ext.export_symbols
+        return _build_ext.get_export_symbols(self, ext)
+
+    def build_extension(self, ext):
+        ext._convert_pyx_sources_to_lang()
+        _compiler = self.compiler
+        try:
+            if isinstance(ext, Library):
+                self.compiler = self.shlib_compiler
+            _build_ext.build_extension(self, ext)
+            if ext._needs_stub:
+                cmd = self.get_finalized_command('build_py').build_lib
+                self.write_stub(cmd, ext)
+        finally:
+            self.compiler = _compiler
+
+    def links_to_dynamic(self, ext):
+        """Return true if 'ext' links to a dynamic lib in the same package"""
+        # XXX this should check to ensure the lib is actually being built
+        # XXX as dynamic, and not just using a locally-found version or a
+        # XXX static-compiled version
+        libnames = dict.fromkeys([lib._full_name for lib in self.shlibs])
+        pkg = '.'.join(ext._full_name.split('.')[:-1] + [''])
+        return any(pkg + libname in libnames for libname in ext.libraries)
+
+    def get_outputs(self):
+        return _build_ext.get_outputs(self) + self.__get_stubs_outputs()
+
+    def __get_stubs_outputs(self):
+        # assemble the base name for each extension that needs a stub
+        ns_ext_bases = (
+            os.path.join(self.build_lib, *ext._full_name.split('.'))
+            for ext in self.extensions
+            if ext._needs_stub
+        )
+        # pair each base with the extension
+        pairs = itertools.product(ns_ext_bases, self.__get_output_extensions())
+        return list(base + fnext for base, fnext in pairs)
+
+    def __get_output_extensions(self):
+        yield '.py'
+        yield '.pyc'
+        if self.get_finalized_command('build_py').optimize:
+            yield '.pyo'
+
+    def write_stub(self, output_dir, ext, compile=False):
+        log.info("writing stub loader for %s to %s", ext._full_name,
+                 output_dir)
+        stub_file = (os.path.join(output_dir, *ext._full_name.split('.')) +
+                     '.py')
+        if compile and os.path.exists(stub_file):
+            raise DistutilsError(stub_file + " already exists! Please delete.")
+        if not self.dry_run:
+            f = open(stub_file, 'w')
+            f.write(
+                '\n'.join([
+                    "def __bootstrap__():",
+                    "   global __bootstrap__, __file__, __loader__",
+                    "   import sys, os, pkg_resources, imp" + if_dl(", dl"),
+                    "   __file__ = pkg_resources.resource_filename"
+                    "(__name__,%r)"
+                    % os.path.basename(ext._file_name),
+                    "   del __bootstrap__",
+                    "   if '__loader__' in globals():",
+                    "       del __loader__",
+                    if_dl("   old_flags = sys.getdlopenflags()"),
+                    "   old_dir = os.getcwd()",
+                    "   try:",
+                    "     os.chdir(os.path.dirname(__file__))",
+                    if_dl("     sys.setdlopenflags(dl.RTLD_NOW)"),
+                    "     imp.load_dynamic(__name__,__file__)",
+                    "   finally:",
+                    if_dl("     sys.setdlopenflags(old_flags)"),
+                    "     os.chdir(old_dir)",
+                    "__bootstrap__()",
+                    ""  # terminal \n
+                ])
+            )
+            f.close()
+        if compile:
+            from distutils.util import byte_compile
+
+            byte_compile([stub_file], optimize=0,
+                         force=True, dry_run=self.dry_run)
+            optimize = self.get_finalized_command('install_lib').optimize
+            if optimize > 0:
+                byte_compile([stub_file], optimize=optimize,
+                             force=True, dry_run=self.dry_run)
+            if os.path.exists(stub_file) and not self.dry_run:
+                os.unlink(stub_file)
+
+
+if use_stubs or os.name == 'nt':
+    # Build shared libraries
+    #
+    def link_shared_object(
+            self, objects, output_libname, output_dir=None, libraries=None,
+            library_dirs=None, runtime_library_dirs=None, export_symbols=None,
+            debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
+            target_lang=None):
+        self.link(
+            self.SHARED_LIBRARY, objects, output_libname,
+            output_dir, libraries, library_dirs, runtime_library_dirs,
+            export_symbols, debug, extra_preargs, extra_postargs,
+            build_temp, target_lang
+        )
+else:
+    # Build static libraries everywhere else
+    libtype = 'static'
+
+    def link_shared_object(
+            self, objects, output_libname, output_dir=None, libraries=None,
+            library_dirs=None, runtime_library_dirs=None, export_symbols=None,
+            debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
+            target_lang=None):
+        # XXX we need to either disallow these attrs on Library instances,
+        # or warn/abort here if set, or something...
+        # libraries=None, library_dirs=None, runtime_library_dirs=None,
+        # export_symbols=None, extra_preargs=None, extra_postargs=None,
+        # build_temp=None
+
+        assert output_dir is None  # distutils build_ext doesn't pass this
+        output_dir, filename = os.path.split(output_libname)
+        basename, ext = os.path.splitext(filename)
+        if self.library_filename("x").startswith('lib'):
+            # strip 'lib' prefix; this is kludgy if some platform uses
+            # a different prefix
+            basename = basename[3:]
+
+        self.create_static_lib(
+            objects, basename, output_dir, debug, target_lang
+        )
+
+
+def _get_config_var_837(name):
+    """
+    In https://github.com/pypa/setuptools/pull/837, we discovered
+    Python 3.3.0 exposes the extension suffix under the name 'SO'.
+    """
+    if sys.version_info < (3, 3, 1):
+        name = 'SO'
+    return get_config_var(name)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/build_py.py b/venv/lib/python3.5/site-packages/setuptools/command/build_py.py
new file mode 100644
index 0000000..b0314fd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/build_py.py
@@ -0,0 +1,270 @@
+from glob import glob
+from distutils.util import convert_path
+import distutils.command.build_py as orig
+import os
+import fnmatch
+import textwrap
+import io
+import distutils.errors
+import itertools
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter, filterfalse
+
+try:
+    from setuptools.lib2to3_ex import Mixin2to3
+except ImportError:
+
+    class Mixin2to3:
+        def run_2to3(self, files, doctests=True):
+            "do nothing"
+
+
+class build_py(orig.build_py, Mixin2to3):
+    """Enhanced 'build_py' command that includes data files with packages
+
+    The data files are specified via a 'package_data' argument to 'setup()'.
+    See 'setuptools.dist.Distribution' for more details.
+
+    Also, this version of the 'build_py' command allows you to specify both
+    'py_modules' and 'packages' in the same setup operation.
+    """
+
+    def finalize_options(self):
+        orig.build_py.finalize_options(self)
+        self.package_data = self.distribution.package_data
+        self.exclude_package_data = (self.distribution.exclude_package_data or
+                                     {})
+        if 'data_files' in self.__dict__:
+            del self.__dict__['data_files']
+        self.__updated_files = []
+        self.__doctests_2to3 = []
+
+    def run(self):
+        """Build modules, packages, and copy data files to build directory"""
+        if not self.py_modules and not self.packages:
+            return
+
+        if self.py_modules:
+            self.build_modules()
+
+        if self.packages:
+            self.build_packages()
+            self.build_package_data()
+
+        self.run_2to3(self.__updated_files, False)
+        self.run_2to3(self.__updated_files, True)
+        self.run_2to3(self.__doctests_2to3, True)
+
+        # Only compile actual .py files, using our base class' idea of what our
+        # output files are.
+        self.byte_compile(orig.build_py.get_outputs(self, include_bytecode=0))
+
+    def __getattr__(self, attr):
+        "lazily compute data files"
+        if attr == 'data_files':
+            self.data_files = self._get_data_files()
+            return self.data_files
+        return orig.build_py.__getattr__(self, attr)
+
+    def build_module(self, module, module_file, package):
+        if six.PY2 and isinstance(package, six.string_types):
+            # avoid errors on Python 2 when unicode is passed (#190)
+            package = package.split('.')
+        outfile, copied = orig.build_py.build_module(self, module, module_file,
+                                                     package)
+        if copied:
+            self.__updated_files.append(outfile)
+        return outfile, copied
+
+    def _get_data_files(self):
+        """Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
+        self.analyze_manifest()
+        return list(map(self._get_pkg_data_files, self.packages or ()))
+
+    def _get_pkg_data_files(self, package):
+        # Locate package source directory
+        src_dir = self.get_package_dir(package)
+
+        # Compute package build directory
+        build_dir = os.path.join(*([self.build_lib] + package.split('.')))
+
+        # Strip directory from globbed filenames
+        filenames = [
+            os.path.relpath(file, src_dir)
+            for file in self.find_data_files(package, src_dir)
+        ]
+        return package, src_dir, build_dir, filenames
+
+    def find_data_files(self, package, src_dir):
+        """Return filenames for package's data files in 'src_dir'"""
+        patterns = self._get_platform_patterns(
+            self.package_data,
+            package,
+            src_dir,
+        )
+        globs_expanded = map(glob, patterns)
+        # flatten the expanded globs into an iterable of matches
+        globs_matches = itertools.chain.from_iterable(globs_expanded)
+        glob_files = filter(os.path.isfile, globs_matches)
+        files = itertools.chain(
+            self.manifest_files.get(package, []),
+            glob_files,
+        )
+        return self.exclude_data_files(package, src_dir, files)
+
+    def build_package_data(self):
+        """Copy data files into build directory"""
+        for package, src_dir, build_dir, filenames in self.data_files:
+            for filename in filenames:
+                target = os.path.join(build_dir, filename)
+                self.mkpath(os.path.dirname(target))
+                srcfile = os.path.join(src_dir, filename)
+                outf, copied = self.copy_file(srcfile, target)
+                srcfile = os.path.abspath(srcfile)
+                if (copied and
+                        srcfile in self.distribution.convert_2to3_doctests):
+                    self.__doctests_2to3.append(outf)
+
+    def analyze_manifest(self):
+        self.manifest_files = mf = {}
+        if not self.distribution.include_package_data:
+            return
+        src_dirs = {}
+        for package in self.packages or ():
+            # Locate package source directory
+            src_dirs[assert_relative(self.get_package_dir(package))] = package
+
+        self.run_command('egg_info')
+        ei_cmd = self.get_finalized_command('egg_info')
+        for path in ei_cmd.filelist.files:
+            d, f = os.path.split(assert_relative(path))
+            prev = None
+            oldf = f
+            while d and d != prev and d not in src_dirs:
+                prev = d
+                d, df = os.path.split(d)
+                f = os.path.join(df, f)
+            if d in src_dirs:
+                if path.endswith('.py') and f == oldf:
+                    continue  # it's a module, not data
+                mf.setdefault(src_dirs[d], []).append(path)
+
+    def get_data_files(self):
+        pass  # Lazily compute data files in _get_data_files() function.
+
+    def check_package(self, package, package_dir):
+        """Check namespace packages' __init__ for declare_namespace"""
+        try:
+            return self.packages_checked[package]
+        except KeyError:
+            pass
+
+        init_py = orig.build_py.check_package(self, package, package_dir)
+        self.packages_checked[package] = init_py
+
+        if not init_py or not self.distribution.namespace_packages:
+            return init_py
+
+        for pkg in self.distribution.namespace_packages:
+            if pkg == package or pkg.startswith(package + '.'):
+                break
+        else:
+            return init_py
+
+        with io.open(init_py, 'rb') as f:
+            contents = f.read()
+        if b'declare_namespace' not in contents:
+            raise distutils.errors.DistutilsError(
+                "Namespace package problem: %s is a namespace package, but "
+                "its\n__init__.py does not call declare_namespace()! Please "
+                'fix it.\n(See the setuptools manual under '
+                '"Namespace Packages" for details.)\n"' % (package,)
+            )
+        return init_py
+
+    def initialize_options(self):
+        self.packages_checked = {}
+        orig.build_py.initialize_options(self)
+
+    def get_package_dir(self, package):
+        res = orig.build_py.get_package_dir(self, package)
+        if self.distribution.src_root is not None:
+            return os.path.join(self.distribution.src_root, res)
+        return res
+
+    def exclude_data_files(self, package, src_dir, files):
+        """Filter filenames for package's data files in 'src_dir'"""
+        files = list(files)
+        patterns = self._get_platform_patterns(
+            self.exclude_package_data,
+            package,
+            src_dir,
+        )
+        match_groups = (
+            fnmatch.filter(files, pattern)
+            for pattern in patterns
+        )
+        # flatten the groups of matches into an iterable of matches
+        matches = itertools.chain.from_iterable(match_groups)
+        bad = set(matches)
+        keepers = (
+            fn
+            for fn in files
+            if fn not in bad
+        )
+        # ditch dupes
+        return list(_unique_everseen(keepers))
+
+    @staticmethod
+    def _get_platform_patterns(spec, package, src_dir):
+        """
+        yield platform-specific path patterns (suitable for glob
+        or fn_match) from a glob-based spec (such as
+        self.package_data or self.exclude_package_data)
+        matching package in src_dir.
+        """
+        raw_patterns = itertools.chain(
+            spec.get('', []),
+            spec.get(package, []),
+        )
+        return (
+            # Each pattern has to be converted to a platform-specific path
+            os.path.join(src_dir, convert_path(pattern))
+            for pattern in raw_patterns
+        )
+
+
+# from Python docs
+def _unique_everseen(iterable, key=None):
+    "List unique elements, preserving order. Remember all elements ever seen."
+    # unique_everseen('AAAABBBCCDAABBB') --> A B C D
+    # unique_everseen('ABBCcAD', str.lower) --> A B C D
+    seen = set()
+    seen_add = seen.add
+    if key is None:
+        for element in filterfalse(seen.__contains__, iterable):
+            seen_add(element)
+            yield element
+    else:
+        for element in iterable:
+            k = key(element)
+            if k not in seen:
+                seen_add(k)
+                yield element
+
+
+def assert_relative(path):
+    if not os.path.isabs(path):
+        return path
+    from distutils.errors import DistutilsSetupError
+
+    msg = textwrap.dedent("""
+        Error: setup script specifies an absolute path:
+
+            %s
+
+        setup() arguments must *always* be /-separated paths relative to the
+        setup.py directory, *never* absolute paths.
+        """).lstrip() % path
+    raise DistutilsSetupError(msg)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/develop.py b/venv/lib/python3.5/site-packages/setuptools/command/develop.py
new file mode 100644
index 0000000..959c932
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/develop.py
@@ -0,0 +1,216 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsError, DistutilsOptionError
+import os
+import glob
+import io
+
+from setuptools.extern import six
+
+from pkg_resources import Distribution, PathMetadata, normalize_path
+from setuptools.command.easy_install import easy_install
+from setuptools import namespaces
+import setuptools
+
+
+class develop(namespaces.DevelopInstaller, easy_install):
+    """Set up package for development"""
+
+    description = "install package in 'development mode'"
+
+    user_options = easy_install.user_options + [
+        ("uninstall", "u", "Uninstall this source package"),
+        ("egg-path=", None, "Set the path to be used in the .egg-link file"),
+    ]
+
+    boolean_options = easy_install.boolean_options + ['uninstall']
+
+    command_consumes_arguments = False  # override base
+
+    def run(self):
+        if self.uninstall:
+            self.multi_version = True
+            self.uninstall_link()
+            self.uninstall_namespaces()
+        else:
+            self.install_for_development()
+        self.warn_deprecated_options()
+
+    def initialize_options(self):
+        self.uninstall = None
+        self.egg_path = None
+        easy_install.initialize_options(self)
+        self.setup_path = None
+        self.always_copy_from = '.'  # always copy eggs installed in curdir
+
+    def finalize_options(self):
+        ei = self.get_finalized_command("egg_info")
+        if ei.broken_egg_info:
+            template = "Please rename %r to %r before using 'develop'"
+            args = ei.egg_info, ei.broken_egg_info
+            raise DistutilsError(template % args)
+        self.args = [ei.egg_name]
+
+        easy_install.finalize_options(self)
+        self.expand_basedirs()
+        self.expand_dirs()
+        # pick up setup-dir .egg files only: no .egg-info
+        self.package_index.scan(glob.glob('*.egg'))
+
+        egg_link_fn = ei.egg_name + '.egg-link'
+        self.egg_link = os.path.join(self.install_dir, egg_link_fn)
+        self.egg_base = ei.egg_base
+        if self.egg_path is None:
+            self.egg_path = os.path.abspath(ei.egg_base)
+
+        target = normalize_path(self.egg_base)
+        egg_path = normalize_path(os.path.join(self.install_dir,
+                                               self.egg_path))
+        if egg_path != target:
+            raise DistutilsOptionError(
+                "--egg-path must be a relative path from the install"
+                " directory to " + target
+            )
+
+        # Make a distribution for the package's source
+        self.dist = Distribution(
+            target,
+            PathMetadata(target, os.path.abspath(ei.egg_info)),
+            project_name=ei.egg_name
+        )
+
+        self.setup_path = self._resolve_setup_path(
+            self.egg_base,
+            self.install_dir,
+            self.egg_path,
+        )
+
+    @staticmethod
+    def _resolve_setup_path(egg_base, install_dir, egg_path):
+        """
+        Generate a path from egg_base back to '.' where the
+        setup script resides and ensure that path points to the
+        setup path from $install_dir/$egg_path.
+        """
+        path_to_setup = egg_base.replace(os.sep, '/').rstrip('/')
+        if path_to_setup != os.curdir:
+            path_to_setup = '../' * (path_to_setup.count('/') + 1)
+        resolved = normalize_path(
+            os.path.join(install_dir, egg_path, path_to_setup)
+        )
+        if resolved != normalize_path(os.curdir):
+            raise DistutilsOptionError(
+                "Can't get a consistent path to setup script from"
+                " installation directory", resolved, normalize_path(os.curdir))
+        return path_to_setup
+
+    def install_for_development(self):
+        if six.PY3 and getattr(self.distribution, 'use_2to3', False):
+            # If we run 2to3 we can not do this inplace:
+
+            # Ensure metadata is up-to-date
+            self.reinitialize_command('build_py', inplace=0)
+            self.run_command('build_py')
+            bpy_cmd = self.get_finalized_command("build_py")
+            build_path = normalize_path(bpy_cmd.build_lib)
+
+            # Build extensions
+            self.reinitialize_command('egg_info', egg_base=build_path)
+            self.run_command('egg_info')
+
+            self.reinitialize_command('build_ext', inplace=0)
+            self.run_command('build_ext')
+
+            # Fixup egg-link and easy-install.pth
+            ei_cmd = self.get_finalized_command("egg_info")
+            self.egg_path = build_path
+            self.dist.location = build_path
+            # XXX
+            self.dist._provider = PathMetadata(build_path, ei_cmd.egg_info)
+        else:
+            # Without 2to3 inplace works fine:
+            self.run_command('egg_info')
+
+            # Build extensions in-place
+            self.reinitialize_command('build_ext', inplace=1)
+            self.run_command('build_ext')
+
+        self.install_site_py()  # ensure that target dir is site-safe
+        if setuptools.bootstrap_install_from:
+            self.easy_install(setuptools.bootstrap_install_from)
+            setuptools.bootstrap_install_from = None
+
+        self.install_namespaces()
+
+        # create an .egg-link in the installation dir, pointing to our egg
+        log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
+        if not self.dry_run:
+            with open(self.egg_link, "w") as f:
+                f.write(self.egg_path + "\n" + self.setup_path)
+        # postprocess the installed distro, fixing up .pth, installing scripts,
+        # and handling requirements
+        self.process_distribution(None, self.dist, not self.no_deps)
+
+    def uninstall_link(self):
+        if os.path.exists(self.egg_link):
+            log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
+            egg_link_file = open(self.egg_link)
+            contents = [line.rstrip() for line in egg_link_file]
+            egg_link_file.close()
+            if contents not in ([self.egg_path],
+                                [self.egg_path, self.setup_path]):
+                log.warn("Link points to %s: uninstall aborted", contents)
+                return
+            if not self.dry_run:
+                os.unlink(self.egg_link)
+        if not self.dry_run:
+            self.update_pth(self.dist)  # remove any .pth link to us
+        if self.distribution.scripts:
+            # XXX should also check for entry point scripts!
+            log.warn("Note: you must uninstall or replace scripts manually!")
+
+    def install_egg_scripts(self, dist):
+        if dist is not self.dist:
+            # Installing a dependency, so fall back to normal behavior
+            return easy_install.install_egg_scripts(self, dist)
+
+        # create wrapper scripts in the script dir, pointing to dist.scripts
+
+        # new-style...
+        self.install_wrapper_scripts(dist)
+
+        # ...and old-style
+        for script_name in self.distribution.scripts or []:
+            script_path = os.path.abspath(convert_path(script_name))
+            script_name = os.path.basename(script_path)
+            with io.open(script_path) as strm:
+                script_text = strm.read()
+            self.install_script(dist, script_name, script_text, script_path)
+
+    def install_wrapper_scripts(self, dist):
+        dist = VersionlessRequirement(dist)
+        return easy_install.install_wrapper_scripts(self, dist)
+
+
+class VersionlessRequirement(object):
+    """
+    Adapt a pkg_resources.Distribution to simply return the project
+    name as the 'requirement' so that scripts will work across
+    multiple versions.
+
+    >>> dist = Distribution(project_name='foo', version='1.0')
+    >>> str(dist.as_requirement())
+    'foo==1.0'
+    >>> adapted_dist = VersionlessRequirement(dist)
+    >>> str(adapted_dist.as_requirement())
+    'foo'
+    """
+
+    def __init__(self, dist):
+        self.__dist = dist
+
+    def __getattr__(self, name):
+        return getattr(self.__dist, name)
+
+    def as_requirement(self):
+        return self.project_name
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/dist_info.py b/venv/lib/python3.5/site-packages/setuptools/command/dist_info.py
new file mode 100644
index 0000000..c45258f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/dist_info.py
@@ -0,0 +1,36 @@
+"""
+Create a dist_info directory
+As defined in the wheel specification
+"""
+
+import os
+
+from distutils.core import Command
+from distutils import log
+
+
+class dist_info(Command):
+
+    description = 'create a .dist-info directory'
+
+    user_options = [
+        ('egg-base=', 'e', "directory containing .egg-info directories"
+                           " (default: top of the source tree)"),
+    ]
+
+    def initialize_options(self):
+        self.egg_base = None
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        egg_info = self.get_finalized_command('egg_info')
+        egg_info.egg_base = self.egg_base
+        egg_info.finalize_options()
+        egg_info.run()
+        dist_info_dir = egg_info.egg_info[:-len('.egg-info')] + '.dist-info'
+        log.info("creating '{}'".format(os.path.abspath(dist_info_dir)))
+
+        bdist_wheel = self.get_finalized_command('bdist_wheel')
+        bdist_wheel.egg2dist(egg_info.egg_info, dist_info_dir)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/easy_install.py b/venv/lib/python3.5/site-packages/setuptools/command/easy_install.py
new file mode 100644
index 0000000..12e2231
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/easy_install.py
@@ -0,0 +1,2333 @@
+#!/usr/bin/env python
+"""
+Easy Install
+------------
+
+A tool for doing automatic download/extract/build of distutils-based Python
+packages.  For detailed documentation, see the accompanying EasyInstall.txt
+file, or visit the `EasyInstall home page`__.
+
+__ https://setuptools.readthedocs.io/en/latest/easy_install.html
+
+"""
+
+from glob import glob
+from distutils.util import get_platform
+from distutils.util import convert_path, subst_vars
+from distutils.errors import (
+    DistutilsArgError, DistutilsOptionError,
+    DistutilsError, DistutilsPlatformError,
+)
+from distutils.command.install import INSTALL_SCHEMES, SCHEME_KEYS
+from distutils import log, dir_util
+from distutils.command.build_scripts import first_line_re
+from distutils.spawn import find_executable
+import sys
+import os
+import zipimport
+import shutil
+import tempfile
+import zipfile
+import re
+import stat
+import random
+import textwrap
+import warnings
+import site
+import struct
+import contextlib
+import subprocess
+import shlex
+import io
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import configparser, map
+
+from setuptools import Command
+from setuptools.sandbox import run_setup
+from setuptools.py31compat import get_path, get_config_vars
+from setuptools.py27compat import rmtree_safe
+from setuptools.command import setopt
+from setuptools.archive_util import unpack_archive
+from setuptools.package_index import (
+    PackageIndex, parse_requirement_arg, URL_SCHEME,
+)
+from setuptools.command import bdist_egg, egg_info
+from setuptools.wheel import Wheel
+from pkg_resources import (
+    yield_lines, normalize_path, resource_string, ensure_directory,
+    get_distribution, find_distributions, Environment, Requirement,
+    Distribution, PathMetadata, EggMetadata, WorkingSet, DistributionNotFound,
+    VersionConflict, DEVELOP_DIST,
+)
+import pkg_resources.py31compat
+
+# Turn on PEP440Warnings
+warnings.filterwarnings("default", category=pkg_resources.PEP440Warning)
+
+__all__ = [
+    'samefile', 'easy_install', 'PthDistributions', 'extract_wininst_cfg',
+    'main', 'get_exe_prefixes',
+]
+
+
+def is_64bit():
+    return struct.calcsize("P") == 8
+
+
+def samefile(p1, p2):
+    """
+    Determine if two paths reference the same file.
+
+    Augments os.path.samefile to work on Windows and
+    suppresses errors if the path doesn't exist.
+    """
+    both_exist = os.path.exists(p1) and os.path.exists(p2)
+    use_samefile = hasattr(os.path, 'samefile') and both_exist
+    if use_samefile:
+        return os.path.samefile(p1, p2)
+    norm_p1 = os.path.normpath(os.path.normcase(p1))
+    norm_p2 = os.path.normpath(os.path.normcase(p2))
+    return norm_p1 == norm_p2
+
+
+if six.PY2:
+
+    def _to_ascii(s):
+        return s
+
+    def isascii(s):
+        try:
+            six.text_type(s, 'ascii')
+            return True
+        except UnicodeError:
+            return False
+else:
+
+    def _to_ascii(s):
+        return s.encode('ascii')
+
+    def isascii(s):
+        try:
+            s.encode('ascii')
+            return True
+        except UnicodeError:
+            return False
+
+
+_one_liner = lambda text: textwrap.dedent(text).strip().replace('\n', '; ')
+
+
+class easy_install(Command):
+    """Manage a download/build/install process"""
+    description = "Find/get/install Python packages"
+    command_consumes_arguments = True
+
+    user_options = [
+        ('prefix=', None, "installation prefix"),
+        ("zip-ok", "z", "install package as a zipfile"),
+        ("multi-version", "m", "make apps have to require() a version"),
+        ("upgrade", "U", "force upgrade (searches PyPI for latest versions)"),
+        ("install-dir=", "d", "install package to DIR"),
+        ("script-dir=", "s", "install scripts to DIR"),
+        ("exclude-scripts", "x", "Don't install scripts"),
+        ("always-copy", "a", "Copy all needed packages to install dir"),
+        ("index-url=", "i", "base URL of Python Package Index"),
+        ("find-links=", "f", "additional URL(s) to search for packages"),
+        ("build-directory=", "b",
+         "download/extract/build in DIR; keep the results"),
+        ('optimize=', 'O',
+         "also compile with optimization: -O1 for \"python -O\", "
+         "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
+        ('record=', None,
+         "filename in which to record list of installed files"),
+        ('always-unzip', 'Z', "don't install as a zipfile, no matter what"),
+        ('site-dirs=', 'S', "list of directories where .pth files work"),
+        ('editable', 'e', "Install specified packages in editable form"),
+        ('no-deps', 'N', "don't install dependencies"),
+        ('allow-hosts=', 'H', "pattern(s) that hostnames must match"),
+        ('local-snapshots-ok', 'l',
+         "allow building eggs from local checkouts"),
+        ('version', None, "print version information and exit"),
+        ('no-find-links', None,
+         "Don't load find-links defined in packages being installed")
+    ]
+    boolean_options = [
+        'zip-ok', 'multi-version', 'exclude-scripts', 'upgrade', 'always-copy',
+        'editable',
+        'no-deps', 'local-snapshots-ok', 'version'
+    ]
+
+    if site.ENABLE_USER_SITE:
+        help_msg = "install in user site-package '%s'" % site.USER_SITE
+        user_options.append(('user', None, help_msg))
+        boolean_options.append('user')
+
+    negative_opt = {'always-unzip': 'zip-ok'}
+    create_index = PackageIndex
+
+    def initialize_options(self):
+        # the --user option seems to be an opt-in one,
+        # so the default should be False.
+        self.user = 0
+        self.zip_ok = self.local_snapshots_ok = None
+        self.install_dir = self.script_dir = self.exclude_scripts = None
+        self.index_url = None
+        self.find_links = None
+        self.build_directory = None
+        self.args = None
+        self.optimize = self.record = None
+        self.upgrade = self.always_copy = self.multi_version = None
+        self.editable = self.no_deps = self.allow_hosts = None
+        self.root = self.prefix = self.no_report = None
+        self.version = None
+        self.install_purelib = None  # for pure module distributions
+        self.install_platlib = None  # non-pure (dists w/ extensions)
+        self.install_headers = None  # for C/C++ headers
+        self.install_lib = None  # set to either purelib or platlib
+        self.install_scripts = None
+        self.install_data = None
+        self.install_base = None
+        self.install_platbase = None
+        if site.ENABLE_USER_SITE:
+            self.install_userbase = site.USER_BASE
+            self.install_usersite = site.USER_SITE
+        else:
+            self.install_userbase = None
+            self.install_usersite = None
+        self.no_find_links = None
+
+        # Options not specifiable via command line
+        self.package_index = None
+        self.pth_file = self.always_copy_from = None
+        self.site_dirs = None
+        self.installed_projects = {}
+        self.sitepy_installed = False
+        # Always read easy_install options, even if we are subclassed, or have
+        # an independent instance created.  This ensures that defaults will
+        # always come from the standard configuration file(s)' "easy_install"
+        # section, even if this is a "develop" or "install" command, or some
+        # other embedding.
+        self._dry_run = None
+        self.verbose = self.distribution.verbose
+        self.distribution._set_command_options(
+            self, self.distribution.get_option_dict('easy_install')
+        )
+
+    def delete_blockers(self, blockers):
+        extant_blockers = (
+            filename for filename in blockers
+            if os.path.exists(filename) or os.path.islink(filename)
+        )
+        list(map(self._delete_path, extant_blockers))
+
+    def _delete_path(self, path):
+        log.info("Deleting %s", path)
+        if self.dry_run:
+            return
+
+        is_tree = os.path.isdir(path) and not os.path.islink(path)
+        remover = rmtree if is_tree else os.unlink
+        remover(path)
+
+    @staticmethod
+    def _render_version():
+        """
+        Render the Setuptools version and installation details, then exit.
+        """
+        ver = sys.version[:3]
+        dist = get_distribution('setuptools')
+        tmpl = 'setuptools {dist.version} from {dist.location} (Python {ver})'
+        print(tmpl.format(**locals()))
+        raise SystemExit()
+
+    def finalize_options(self):
+        self.version and self._render_version()
+
+        py_version = sys.version.split()[0]
+        prefix, exec_prefix = get_config_vars('prefix', 'exec_prefix')
+
+        self.config_vars = {
+            'dist_name': self.distribution.get_name(),
+            'dist_version': self.distribution.get_version(),
+            'dist_fullname': self.distribution.get_fullname(),
+            'py_version': py_version,
+            'py_version_short': py_version[0:3],
+            'py_version_nodot': py_version[0] + py_version[2],
+            'sys_prefix': prefix,
+            'prefix': prefix,
+            'sys_exec_prefix': exec_prefix,
+            'exec_prefix': exec_prefix,
+            # Only python 3.2+ has abiflags
+            'abiflags': getattr(sys, 'abiflags', ''),
+        }
+
+        if site.ENABLE_USER_SITE:
+            self.config_vars['userbase'] = self.install_userbase
+            self.config_vars['usersite'] = self.install_usersite
+
+        self._fix_install_dir_for_user_site()
+
+        self.expand_basedirs()
+        self.expand_dirs()
+
+        self._expand(
+            'install_dir', 'script_dir', 'build_directory',
+            'site_dirs',
+        )
+        # If a non-default installation directory was specified, default the
+        # script directory to match it.
+        if self.script_dir is None:
+            self.script_dir = self.install_dir
+
+        if self.no_find_links is None:
+            self.no_find_links = False
+
+        # Let install_dir get set by install_lib command, which in turn
+        # gets its info from the install command, and takes into account
+        # --prefix and --home and all that other crud.
+        self.set_undefined_options(
+            'install_lib', ('install_dir', 'install_dir')
+        )
+        # Likewise, set default script_dir from 'install_scripts.install_dir'
+        self.set_undefined_options(
+            'install_scripts', ('install_dir', 'script_dir')
+        )
+
+        if self.user and self.install_purelib:
+            self.install_dir = self.install_purelib
+            self.script_dir = self.install_scripts
+        # default --record from the install command
+        self.set_undefined_options('install', ('record', 'record'))
+        # Should this be moved to the if statement below? It's not used
+        # elsewhere
+        normpath = map(normalize_path, sys.path)
+        self.all_site_dirs = get_site_dirs()
+        if self.site_dirs is not None:
+            site_dirs = [
+                os.path.expanduser(s.strip()) for s in
+                self.site_dirs.split(',')
+            ]
+            for d in site_dirs:
+                if not os.path.isdir(d):
+                    log.warn("%s (in --site-dirs) does not exist", d)
+                elif normalize_path(d) not in normpath:
+                    raise DistutilsOptionError(
+                        d + " (in --site-dirs) is not on sys.path"
+                    )
+                else:
+                    self.all_site_dirs.append(normalize_path(d))
+        if not self.editable:
+            self.check_site_dir()
+        self.index_url = self.index_url or "https://pypi.python.org/simple"
+        self.shadow_path = self.all_site_dirs[:]
+        for path_item in self.install_dir, normalize_path(self.script_dir):
+            if path_item not in self.shadow_path:
+                self.shadow_path.insert(0, path_item)
+
+        if self.allow_hosts is not None:
+            hosts = [s.strip() for s in self.allow_hosts.split(',')]
+        else:
+            hosts = ['*']
+        if self.package_index is None:
+            self.package_index = self.create_index(
+                self.index_url, search_path=self.shadow_path, hosts=hosts,
+            )
+        self.local_index = Environment(self.shadow_path + sys.path)
+
+        if self.find_links is not None:
+            if isinstance(self.find_links, six.string_types):
+                self.find_links = self.find_links.split()
+        else:
+            self.find_links = []
+        if self.local_snapshots_ok:
+            self.package_index.scan_egg_links(self.shadow_path + sys.path)
+        if not self.no_find_links:
+            self.package_index.add_find_links(self.find_links)
+        self.set_undefined_options('install_lib', ('optimize', 'optimize'))
+        if not isinstance(self.optimize, int):
+            try:
+                self.optimize = int(self.optimize)
+                if not (0 <= self.optimize <= 2):
+                    raise ValueError
+            except ValueError:
+                raise DistutilsOptionError("--optimize must be 0, 1, or 2")
+
+        if self.editable and not self.build_directory:
+            raise DistutilsArgError(
+                "Must specify a build directory (-b) when using --editable"
+            )
+        if not self.args:
+            raise DistutilsArgError(
+                "No urls, filenames, or requirements specified (see --help)")
+
+        self.outputs = []
+
+    def _fix_install_dir_for_user_site(self):
+        """
+        Fix the install_dir if "--user" was used.
+        """
+        if not self.user or not site.ENABLE_USER_SITE:
+            return
+
+        self.create_home_path()
+        if self.install_userbase is None:
+            msg = "User base directory is not specified"
+            raise DistutilsPlatformError(msg)
+        self.install_base = self.install_platbase = self.install_userbase
+        scheme_name = os.name.replace('posix', 'unix') + '_user'
+        self.select_scheme(scheme_name)
+
+    def _expand_attrs(self, attrs):
+        for attr in attrs:
+            val = getattr(self, attr)
+            if val is not None:
+                if os.name == 'posix' or os.name == 'nt':
+                    val = os.path.expanduser(val)
+                val = subst_vars(val, self.config_vars)
+                setattr(self, attr, val)
+
+    def expand_basedirs(self):
+        """Calls `os.path.expanduser` on install_base, install_platbase and
+        root."""
+        self._expand_attrs(['install_base', 'install_platbase', 'root'])
+
+    def expand_dirs(self):
+        """Calls `os.path.expanduser` on install dirs."""
+        dirs = [
+            'install_purelib',
+            'install_platlib',
+            'install_lib',
+            'install_headers',
+            'install_scripts',
+            'install_data',
+        ]
+        self._expand_attrs(dirs)
+
+    def run(self):
+        if self.verbose != self.distribution.verbose:
+            log.set_verbosity(self.verbose)
+        try:
+            for spec in self.args:
+                self.easy_install(spec, not self.no_deps)
+            if self.record:
+                outputs = self.outputs
+                if self.root:  # strip any package prefix
+                    root_len = len(self.root)
+                    for counter in range(len(outputs)):
+                        outputs[counter] = outputs[counter][root_len:]
+                from distutils import file_util
+
+                self.execute(
+                    file_util.write_file, (self.record, outputs),
+                    "writing list of installed files to '%s'" %
+                    self.record
+                )
+            self.warn_deprecated_options()
+        finally:
+            log.set_verbosity(self.distribution.verbose)
+
+    def pseudo_tempname(self):
+        """Return a pseudo-tempname base in the install directory.
+        This code is intentionally naive; if a malicious party can write to
+        the target directory you're already in deep doodoo.
+        """
+        try:
+            pid = os.getpid()
+        except Exception:
+            pid = random.randint(0, sys.maxsize)
+        return os.path.join(self.install_dir, "test-easy-install-%s" % pid)
+
+    def warn_deprecated_options(self):
+        pass
+
+    def check_site_dir(self):
+        """Verify that self.install_dir is .pth-capable dir, if needed"""
+
+        instdir = normalize_path(self.install_dir)
+        pth_file = os.path.join(instdir, 'easy-install.pth')
+
+        # Is it a configured, PYTHONPATH, implicit, or explicit site dir?
+        is_site_dir = instdir in self.all_site_dirs
+
+        if not is_site_dir and not self.multi_version:
+            # No?  Then directly test whether it does .pth file processing
+            is_site_dir = self.check_pth_processing()
+        else:
+            # make sure we can write to target dir
+            testfile = self.pseudo_tempname() + '.write-test'
+            test_exists = os.path.exists(testfile)
+            try:
+                if test_exists:
+                    os.unlink(testfile)
+                open(testfile, 'w').close()
+                os.unlink(testfile)
+            except (OSError, IOError):
+                self.cant_write_to_target()
+
+        if not is_site_dir and not self.multi_version:
+            # Can't install non-multi to non-site dir
+            raise DistutilsError(self.no_default_version_msg())
+
+        if is_site_dir:
+            if self.pth_file is None:
+                self.pth_file = PthDistributions(pth_file, self.all_site_dirs)
+        else:
+            self.pth_file = None
+
+        if instdir not in map(normalize_path, _pythonpath()):
+            # only PYTHONPATH dirs need a site.py, so pretend it's there
+            self.sitepy_installed = True
+        elif self.multi_version and not os.path.exists(pth_file):
+            self.sitepy_installed = True  # don't need site.py in this case
+            self.pth_file = None  # and don't create a .pth file
+        self.install_dir = instdir
+
+    __cant_write_msg = textwrap.dedent("""
+        can't create or remove files in install directory
+
+        The following error occurred while trying to add or remove files in the
+        installation directory:
+
+            %s
+
+        The installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
+
+            %s
+        """).lstrip()
+
+    __not_exists_id = textwrap.dedent("""
+        This directory does not currently exist.  Please create it and try again, or
+        choose a different installation directory (using the -d or --install-dir
+        option).
+        """).lstrip()
+
+    __access_msg = textwrap.dedent("""
+        Perhaps your account does not have write access to this directory?  If the
+        installation directory is a system-owned directory, you may need to sign in
+        as the administrator or "root" account.  If you do not have administrative
+        access to this machine, you may wish to choose a different installation
+        directory, preferably one that is listed in your PYTHONPATH environment
+        variable.
+
+        For information on other options, you may wish to consult the
+        documentation at:
+
+          https://setuptools.readthedocs.io/en/latest/easy_install.html
+
+        Please make the appropriate changes for your system and try again.
+        """).lstrip()
+
+    def cant_write_to_target(self):
+        msg = self.__cant_write_msg % (sys.exc_info()[1], self.install_dir,)
+
+        if not os.path.exists(self.install_dir):
+            msg += '\n' + self.__not_exists_id
+        else:
+            msg += '\n' + self.__access_msg
+        raise DistutilsError(msg)
+
+    def check_pth_processing(self):
+        """Empirically verify whether .pth files are supported in inst. dir"""
+        instdir = self.install_dir
+        log.info("Checking .pth file support in %s", instdir)
+        pth_file = self.pseudo_tempname() + ".pth"
+        ok_file = pth_file + '.ok'
+        ok_exists = os.path.exists(ok_file)
+        tmpl = _one_liner("""
+            import os
+            f = open({ok_file!r}, 'w')
+            f.write('OK')
+            f.close()
+            """) + '\n'
+        try:
+            if ok_exists:
+                os.unlink(ok_file)
+            dirname = os.path.dirname(ok_file)
+            pkg_resources.py31compat.makedirs(dirname, exist_ok=True)
+            f = open(pth_file, 'w')
+        except (OSError, IOError):
+            self.cant_write_to_target()
+        else:
+            try:
+                f.write(tmpl.format(**locals()))
+                f.close()
+                f = None
+                executable = sys.executable
+                if os.name == 'nt':
+                    dirname, basename = os.path.split(executable)
+                    alt = os.path.join(dirname, 'pythonw.exe')
+                    use_alt = (
+                        basename.lower() == 'python.exe' and
+                        os.path.exists(alt)
+                    )
+                    if use_alt:
+                        # use pythonw.exe to avoid opening a console window
+                        executable = alt
+
+                from distutils.spawn import spawn
+
+                spawn([executable, '-E', '-c', 'pass'], 0)
+
+                if os.path.exists(ok_file):
+                    log.info(
+                        "TEST PASSED: %s appears to support .pth files",
+                        instdir
+                    )
+                    return True
+            finally:
+                if f:
+                    f.close()
+                if os.path.exists(ok_file):
+                    os.unlink(ok_file)
+                if os.path.exists(pth_file):
+                    os.unlink(pth_file)
+        if not self.multi_version:
+            log.warn("TEST FAILED: %s does NOT support .pth files", instdir)
+        return False
+
+    def install_egg_scripts(self, dist):
+        """Write all the scripts for `dist`, unless scripts are excluded"""
+        if not self.exclude_scripts and dist.metadata_isdir('scripts'):
+            for script_name in dist.metadata_listdir('scripts'):
+                if dist.metadata_isdir('scripts/' + script_name):
+                    # The "script" is a directory, likely a Python 3
+                    # __pycache__ directory, so skip it.
+                    continue
+                self.install_script(
+                    dist, script_name,
+                    dist.get_metadata('scripts/' + script_name)
+                )
+        self.install_wrapper_scripts(dist)
+
+    def add_output(self, path):
+        if os.path.isdir(path):
+            for base, dirs, files in os.walk(path):
+                for filename in files:
+                    self.outputs.append(os.path.join(base, filename))
+        else:
+            self.outputs.append(path)
+
+    def not_editable(self, spec):
+        if self.editable:
+            raise DistutilsArgError(
+                "Invalid argument %r: you can't use filenames or URLs "
+                "with --editable (except via the --find-links option)."
+                % (spec,)
+            )
+
+    def check_editable(self, spec):
+        if not self.editable:
+            return
+
+        if os.path.exists(os.path.join(self.build_directory, spec.key)):
+            raise DistutilsArgError(
+                "%r already exists in %s; can't do a checkout there" %
+                (spec.key, self.build_directory)
+            )
+
+    @contextlib.contextmanager
+    def _tmpdir(self):
+        tmpdir = tempfile.mkdtemp(prefix=six.u("easy_install-"))
+        try:
+            # cast to str as workaround for #709 and #710 and #712
+            yield str(tmpdir)
+        finally:
+            os.path.exists(tmpdir) and rmtree(rmtree_safe(tmpdir))
+
+    def easy_install(self, spec, deps=False):
+        if not self.editable:
+            self.install_site_py()
+
+        with self._tmpdir() as tmpdir:
+            if not isinstance(spec, Requirement):
+                if URL_SCHEME(spec):
+                    # It's a url, download it to tmpdir and process
+                    self.not_editable(spec)
+                    dl = self.package_index.download(spec, tmpdir)
+                    return self.install_item(None, dl, tmpdir, deps, True)
+
+                elif os.path.exists(spec):
+                    # Existing file or directory, just process it directly
+                    self.not_editable(spec)
+                    return self.install_item(None, spec, tmpdir, deps, True)
+                else:
+                    spec = parse_requirement_arg(spec)
+
+            self.check_editable(spec)
+            dist = self.package_index.fetch_distribution(
+                spec, tmpdir, self.upgrade, self.editable,
+                not self.always_copy, self.local_index
+            )
+            if dist is None:
+                msg = "Could not find suitable distribution for %r" % spec
+                if self.always_copy:
+                    msg += " (--always-copy skips system and development eggs)"
+                raise DistutilsError(msg)
+            elif dist.precedence == DEVELOP_DIST:
+                # .egg-info dists don't need installing, just process deps
+                self.process_distribution(spec, dist, deps, "Using")
+                return dist
+            else:
+                return self.install_item(spec, dist.location, tmpdir, deps)
+
+    def install_item(self, spec, download, tmpdir, deps, install_needed=False):
+
+        # Installation is also needed if file in tmpdir or is not an egg
+        install_needed = install_needed or self.always_copy
+        install_needed = install_needed or os.path.dirname(download) == tmpdir
+        install_needed = install_needed or not download.endswith('.egg')
+        install_needed = install_needed or (
+            self.always_copy_from is not None and
+            os.path.dirname(normalize_path(download)) ==
+            normalize_path(self.always_copy_from)
+        )
+
+        if spec and not install_needed:
+            # at this point, we know it's a local .egg, we just don't know if
+            # it's already installed.
+            for dist in self.local_index[spec.project_name]:
+                if dist.location == download:
+                    break
+            else:
+                install_needed = True  # it's not in the local index
+
+        log.info("Processing %s", os.path.basename(download))
+
+        if install_needed:
+            dists = self.install_eggs(spec, download, tmpdir)
+            for dist in dists:
+                self.process_distribution(spec, dist, deps)
+        else:
+            dists = [self.egg_distribution(download)]
+            self.process_distribution(spec, dists[0], deps, "Using")
+
+        if spec is not None:
+            for dist in dists:
+                if dist in spec:
+                    return dist
+
+    def select_scheme(self, name):
+        """Sets the install directories by applying the install schemes."""
+        # it's the caller's problem if they supply a bad name!
+        scheme = INSTALL_SCHEMES[name]
+        for key in SCHEME_KEYS:
+            attrname = 'install_' + key
+            if getattr(self, attrname) is None:
+                setattr(self, attrname, scheme[key])
+
+    def process_distribution(self, requirement, dist, deps=True, *info):
+        self.update_pth(dist)
+        self.package_index.add(dist)
+        if dist in self.local_index[dist.key]:
+            self.local_index.remove(dist)
+        self.local_index.add(dist)
+        self.install_egg_scripts(dist)
+        self.installed_projects[dist.key] = dist
+        log.info(self.installation_report(requirement, dist, *info))
+        if (dist.has_metadata('dependency_links.txt') and
+                not self.no_find_links):
+            self.package_index.add_find_links(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+        if not deps and not self.always_copy:
+            return
+        elif requirement is not None and dist.key != requirement.key:
+            log.warn("Skipping dependencies for %s", dist)
+            return  # XXX this is not the distribution we were looking for
+        elif requirement is None or dist not in requirement:
+            # if we wound up with a different version, resolve what we've got
+            distreq = dist.as_requirement()
+            requirement = Requirement(str(distreq))
+        log.info("Processing dependencies for %s", requirement)
+        try:
+            distros = WorkingSet([]).resolve(
+                [requirement], self.local_index, self.easy_install
+            )
+        except DistributionNotFound as e:
+            raise DistutilsError(str(e))
+        except VersionConflict as e:
+            raise DistutilsError(e.report())
+        if self.always_copy or self.always_copy_from:
+            # Force all the relevant distros to be copied or activated
+            for dist in distros:
+                if dist.key not in self.installed_projects:
+                    self.easy_install(dist.as_requirement())
+        log.info("Finished processing dependencies for %s", requirement)
+
+    def should_unzip(self, dist):
+        if self.zip_ok is not None:
+            return not self.zip_ok
+        if dist.has_metadata('not-zip-safe'):
+            return True
+        if not dist.has_metadata('zip-safe'):
+            return True
+        return False
+
+    def maybe_move(self, spec, dist_filename, setup_base):
+        dst = os.path.join(self.build_directory, spec.key)
+        if os.path.exists(dst):
+            msg = (
+                "%r already exists in %s; build directory %s will not be kept"
+            )
+            log.warn(msg, spec.key, self.build_directory, setup_base)
+            return setup_base
+        if os.path.isdir(dist_filename):
+            setup_base = dist_filename
+        else:
+            if os.path.dirname(dist_filename) == setup_base:
+                os.unlink(dist_filename)  # get it out of the tmp dir
+            contents = os.listdir(setup_base)
+            if len(contents) == 1:
+                dist_filename = os.path.join(setup_base, contents[0])
+                if os.path.isdir(dist_filename):
+                    # if the only thing there is a directory, move it instead
+                    setup_base = dist_filename
+        ensure_directory(dst)
+        shutil.move(setup_base, dst)
+        return dst
+
+    def install_wrapper_scripts(self, dist):
+        if self.exclude_scripts:
+            return
+        for args in ScriptWriter.best().get_args(dist):
+            self.write_script(*args)
+
+    def install_script(self, dist, script_name, script_text, dev_path=None):
+        """Generate a legacy script wrapper and install it"""
+        spec = str(dist.as_requirement())
+        is_script = is_python_script(script_text, script_name)
+
+        if is_script:
+            body = self._load_template(dev_path) % locals()
+            script_text = ScriptWriter.get_header(script_text) + body
+        self.write_script(script_name, _to_ascii(script_text), 'b')
+
+    @staticmethod
+    def _load_template(dev_path):
+        """
+        There are a couple of template scripts in the package. This
+        function loads one of them and prepares it for use.
+        """
+        # See https://github.com/pypa/setuptools/issues/134 for info
+        # on script file naming and downstream issues with SVR4
+        name = 'script.tmpl'
+        if dev_path:
+            name = name.replace('.tmpl', ' (dev).tmpl')
+
+        raw_bytes = resource_string('setuptools', name)
+        return raw_bytes.decode('utf-8')
+
+    def write_script(self, script_name, contents, mode="t", blockers=()):
+        """Write an executable file to the scripts directory"""
+        self.delete_blockers(  # clean up old .py/.pyw w/o a script
+            [os.path.join(self.script_dir, x) for x in blockers]
+        )
+        log.info("Installing %s script to %s", script_name, self.script_dir)
+        target = os.path.join(self.script_dir, script_name)
+        self.add_output(target)
+
+        mask = current_umask()
+        if not self.dry_run:
+            ensure_directory(target)
+            if os.path.exists(target):
+                os.unlink(target)
+            with open(target, "w" + mode) as f:
+                f.write(contents)
+            chmod(target, 0o777 - mask)
+
+    def install_eggs(self, spec, dist_filename, tmpdir):
+        # .egg dirs or files are already built, so just return them
+        if dist_filename.lower().endswith('.egg'):
+            return [self.install_egg(dist_filename, tmpdir)]
+        elif dist_filename.lower().endswith('.exe'):
+            return [self.install_exe(dist_filename, tmpdir)]
+        elif dist_filename.lower().endswith('.whl'):
+            return [self.install_wheel(dist_filename, tmpdir)]
+
+        # Anything else, try to extract and build
+        setup_base = tmpdir
+        if os.path.isfile(dist_filename) and not dist_filename.endswith('.py'):
+            unpack_archive(dist_filename, tmpdir, self.unpack_progress)
+        elif os.path.isdir(dist_filename):
+            setup_base = os.path.abspath(dist_filename)
+
+        if (setup_base.startswith(tmpdir)  # something we downloaded
+                and self.build_directory and spec is not None):
+            setup_base = self.maybe_move(spec, dist_filename, setup_base)
+
+        # Find the setup.py file
+        setup_script = os.path.join(setup_base, 'setup.py')
+
+        if not os.path.exists(setup_script):
+            setups = glob(os.path.join(setup_base, '*', 'setup.py'))
+            if not setups:
+                raise DistutilsError(
+                    "Couldn't find a setup script in %s" %
+                    os.path.abspath(dist_filename)
+                )
+            if len(setups) > 1:
+                raise DistutilsError(
+                    "Multiple setup scripts in %s" %
+                    os.path.abspath(dist_filename)
+                )
+            setup_script = setups[0]
+
+        # Now run it, and return the result
+        if self.editable:
+            log.info(self.report_editable(spec, setup_script))
+            return []
+        else:
+            return self.build_and_install(setup_script, setup_base)
+
+    def egg_distribution(self, egg_path):
+        if os.path.isdir(egg_path):
+            metadata = PathMetadata(egg_path, os.path.join(egg_path,
+                                                           'EGG-INFO'))
+        else:
+            metadata = EggMetadata(zipimport.zipimporter(egg_path))
+        return Distribution.from_filename(egg_path, metadata=metadata)
+
+    def install_egg(self, egg_path, tmpdir):
+        destination = os.path.join(
+            self.install_dir,
+            os.path.basename(egg_path),
+        )
+        destination = os.path.abspath(destination)
+        if not self.dry_run:
+            ensure_directory(destination)
+
+        dist = self.egg_distribution(egg_path)
+        if not samefile(egg_path, destination):
+            if os.path.isdir(destination) and not os.path.islink(destination):
+                dir_util.remove_tree(destination, dry_run=self.dry_run)
+            elif os.path.exists(destination):
+                self.execute(
+                    os.unlink,
+                    (destination,),
+                    "Removing " + destination,
+                )
+            try:
+                new_dist_is_zipped = False
+                if os.path.isdir(egg_path):
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copytree, "Copying"
+                elif self.should_unzip(dist):
+                    self.mkpath(destination)
+                    f, m = self.unpack_and_compile, "Extracting"
+                else:
+                    new_dist_is_zipped = True
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copy2, "Copying"
+                self.execute(
+                    f,
+                    (egg_path, destination),
+                    (m + " %s to %s") % (
+                        os.path.basename(egg_path),
+                        os.path.dirname(destination)
+                    ),
+                )
+                update_dist_caches(
+                    destination,
+                    fix_zipimporter_caches=new_dist_is_zipped,
+                )
+            except Exception:
+                update_dist_caches(destination, fix_zipimporter_caches=False)
+                raise
+
+        self.add_output(destination)
+        return self.egg_distribution(destination)
+
+    def install_exe(self, dist_filename, tmpdir):
+        # See if it's valid, get data
+        cfg = extract_wininst_cfg(dist_filename)
+        if cfg is None:
+            raise DistutilsError(
+                "%s is not a valid distutils Windows .exe" % dist_filename
+            )
+        # Create a dummy distribution object until we build the real distro
+        dist = Distribution(
+            None,
+            project_name=cfg.get('metadata', 'name'),
+            version=cfg.get('metadata', 'version'), platform=get_platform(),
+        )
+
+        # Convert the .exe to an unpacked egg
+        egg_path = os.path.join(tmpdir, dist.egg_name() + '.egg')
+        dist.location = egg_path
+        egg_tmp = egg_path + '.tmp'
+        _egg_info = os.path.join(egg_tmp, 'EGG-INFO')
+        pkg_inf = os.path.join(_egg_info, 'PKG-INFO')
+        ensure_directory(pkg_inf)  # make sure EGG-INFO dir exists
+        dist._provider = PathMetadata(egg_tmp, _egg_info)  # XXX
+        self.exe_to_egg(dist_filename, egg_tmp)
+
+        # Write EGG-INFO/PKG-INFO
+        if not os.path.exists(pkg_inf):
+            f = open(pkg_inf, 'w')
+            f.write('Metadata-Version: 1.0\n')
+            for k, v in cfg.items('metadata'):
+                if k != 'target_version':
+                    f.write('%s: %s\n' % (k.replace('_', '-').title(), v))
+            f.close()
+        script_dir = os.path.join(_egg_info, 'scripts')
+        # delete entry-point scripts to avoid duping
+        self.delete_blockers([
+            os.path.join(script_dir, args[0])
+            for args in ScriptWriter.get_args(dist)
+        ])
+        # Build .egg file from tmpdir
+        bdist_egg.make_zipfile(
+            egg_path, egg_tmp, verbose=self.verbose, dry_run=self.dry_run,
+        )
+        # install the .egg
+        return self.install_egg(egg_path, tmpdir)
+
+    def exe_to_egg(self, dist_filename, egg_tmp):
+        """Extract a bdist_wininst to the directories an egg would use"""
+        # Check for .pth file and set up prefix translations
+        prefixes = get_exe_prefixes(dist_filename)
+        to_compile = []
+        native_libs = []
+        top_level = {}
+
+        def process(src, dst):
+            s = src.lower()
+            for old, new in prefixes:
+                if s.startswith(old):
+                    src = new + src[len(old):]
+                    parts = src.split('/')
+                    dst = os.path.join(egg_tmp, *parts)
+                    dl = dst.lower()
+                    if dl.endswith('.pyd') or dl.endswith('.dll'):
+                        parts[-1] = bdist_egg.strip_module(parts[-1])
+                        top_level[os.path.splitext(parts[0])[0]] = 1
+                        native_libs.append(src)
+                    elif dl.endswith('.py') and old != 'SCRIPTS/':
+                        top_level[os.path.splitext(parts[0])[0]] = 1
+                        to_compile.append(dst)
+                    return dst
+            if not src.endswith('.pth'):
+                log.warn("WARNING: can't process %s", src)
+            return None
+
+        # extract, tracking .pyd/.dll->native_libs and .py -> to_compile
+        unpack_archive(dist_filename, egg_tmp, process)
+        stubs = []
+        for res in native_libs:
+            if res.lower().endswith('.pyd'):  # create stubs for .pyd's
+                parts = res.split('/')
+                resource = parts[-1]
+                parts[-1] = bdist_egg.strip_module(parts[-1]) + '.py'
+                pyfile = os.path.join(egg_tmp, *parts)
+                to_compile.append(pyfile)
+                stubs.append(pyfile)
+                bdist_egg.write_stub(resource, pyfile)
+        self.byte_compile(to_compile)  # compile .py's
+        bdist_egg.write_safety_flag(
+            os.path.join(egg_tmp, 'EGG-INFO'),
+            bdist_egg.analyze_egg(egg_tmp, stubs))  # write zip-safety flag
+
+        for name in 'top_level', 'native_libs':
+            if locals()[name]:
+                txt = os.path.join(egg_tmp, 'EGG-INFO', name + '.txt')
+                if not os.path.exists(txt):
+                    f = open(txt, 'w')
+                    f.write('\n'.join(locals()[name]) + '\n')
+                    f.close()
+
+    def install_wheel(self, wheel_path, tmpdir):
+        wheel = Wheel(wheel_path)
+        assert wheel.is_compatible()
+        destination = os.path.join(self.install_dir, wheel.egg_name())
+        destination = os.path.abspath(destination)
+        if not self.dry_run:
+            ensure_directory(destination)
+        if os.path.isdir(destination) and not os.path.islink(destination):
+            dir_util.remove_tree(destination, dry_run=self.dry_run)
+        elif os.path.exists(destination):
+            self.execute(
+                os.unlink,
+                (destination,),
+                "Removing " + destination,
+            )
+        try:
+            self.execute(
+                wheel.install_as_egg,
+                (destination,),
+                ("Installing %s to %s") % (
+                    os.path.basename(wheel_path),
+                    os.path.dirname(destination)
+                ),
+            )
+        finally:
+            update_dist_caches(destination, fix_zipimporter_caches=False)
+        self.add_output(destination)
+        return self.egg_distribution(destination)
+
+    __mv_warning = textwrap.dedent("""
+        Because this distribution was installed --multi-version, before you can
+        import modules from this package in an application, you will need to
+        'import pkg_resources' and then use a 'require()' call similar to one of
+        these examples, in order to select the desired version:
+
+            pkg_resources.require("%(name)s")  # latest installed version
+            pkg_resources.require("%(name)s==%(version)s")  # this exact version
+            pkg_resources.require("%(name)s>=%(version)s")  # this version or higher
+        """).lstrip()
+
+    __id_warning = textwrap.dedent("""
+        Note also that the installation directory must be on sys.path at runtime for
+        this to work.  (e.g. by being the application's script directory, by being on
+        PYTHONPATH, or by being added to sys.path by your code.)
+        """)
+
+    def installation_report(self, req, dist, what="Installed"):
+        """Helpful installation message for display to package users"""
+        msg = "\n%(what)s %(eggloc)s%(extras)s"
+        if self.multi_version and not self.no_report:
+            msg += '\n' + self.__mv_warning
+            if self.install_dir not in map(normalize_path, sys.path):
+                msg += '\n' + self.__id_warning
+
+        eggloc = dist.location
+        name = dist.project_name
+        version = dist.version
+        extras = ''  # TODO: self.report_extras(req, dist)
+        return msg % locals()
+
+    __editable_msg = textwrap.dedent("""
+        Extracted editable version of %(spec)s to %(dirname)s
+
+        If it uses setuptools in its setup script, you can activate it in
+        "development" mode by going to that directory and running::
+
+            %(python)s setup.py develop
+
+        See the setuptools documentation for the "develop" command for more info.
+        """).lstrip()
+
+    def report_editable(self, spec, setup_script):
+        dirname = os.path.dirname(setup_script)
+        python = sys.executable
+        return '\n' + self.__editable_msg % locals()
+
+    def run_setup(self, setup_script, setup_base, args):
+        sys.modules.setdefault('distutils.command.bdist_egg', bdist_egg)
+        sys.modules.setdefault('distutils.command.egg_info', egg_info)
+
+        args = list(args)
+        if self.verbose > 2:
+            v = 'v' * (self.verbose - 1)
+            args.insert(0, '-' + v)
+        elif self.verbose < 2:
+            args.insert(0, '-q')
+        if self.dry_run:
+            args.insert(0, '-n')
+        log.info(
+            "Running %s %s", setup_script[len(setup_base) + 1:], ' '.join(args)
+        )
+        try:
+            run_setup(setup_script, args)
+        except SystemExit as v:
+            raise DistutilsError("Setup script exited with %s" % (v.args[0],))
+
+    def build_and_install(self, setup_script, setup_base):
+        args = ['bdist_egg', '--dist-dir']
+
+        dist_dir = tempfile.mkdtemp(
+            prefix='egg-dist-tmp-', dir=os.path.dirname(setup_script)
+        )
+        try:
+            self._set_fetcher_options(os.path.dirname(setup_script))
+            args.append(dist_dir)
+
+            self.run_setup(setup_script, setup_base, args)
+            all_eggs = Environment([dist_dir])
+            eggs = []
+            for key in all_eggs:
+                for dist in all_eggs[key]:
+                    eggs.append(self.install_egg(dist.location, setup_base))
+            if not eggs and not self.dry_run:
+                log.warn("No eggs found in %s (setup script problem?)",
+                         dist_dir)
+            return eggs
+        finally:
+            rmtree(dist_dir)
+            log.set_verbosity(self.verbose)  # restore our log verbosity
+
+    def _set_fetcher_options(self, base):
+        """
+        When easy_install is about to run bdist_egg on a source dist, that
+        source dist might have 'setup_requires' directives, requiring
+        additional fetching. Ensure the fetcher options given to easy_install
+        are available to that command as well.
+        """
+        # find the fetch options from easy_install and write them out
+        # to the setup.cfg file.
+        ei_opts = self.distribution.get_option_dict('easy_install').copy()
+        fetch_directives = (
+            'find_links', 'site_dirs', 'index_url', 'optimize',
+            'site_dirs', 'allow_hosts',
+        )
+        fetch_options = {}
+        for key, val in ei_opts.items():
+            if key not in fetch_directives:
+                continue
+            fetch_options[key.replace('_', '-')] = val[1]
+        # create a settings dictionary suitable for `edit_config`
+        settings = dict(easy_install=fetch_options)
+        cfg_filename = os.path.join(base, 'setup.cfg')
+        setopt.edit_config(cfg_filename, settings)
+
+    def update_pth(self, dist):
+        if self.pth_file is None:
+            return
+
+        for d in self.pth_file[dist.key]:  # drop old entries
+            if self.multi_version or d.location != dist.location:
+                log.info("Removing %s from easy-install.pth file", d)
+                self.pth_file.remove(d)
+                if d.location in self.shadow_path:
+                    self.shadow_path.remove(d.location)
+
+        if not self.multi_version:
+            if dist.location in self.pth_file.paths:
+                log.info(
+                    "%s is already the active version in easy-install.pth",
+                    dist,
+                )
+            else:
+                log.info("Adding %s to easy-install.pth file", dist)
+                self.pth_file.add(dist)  # add new entry
+                if dist.location not in self.shadow_path:
+                    self.shadow_path.append(dist.location)
+
+        if not self.dry_run:
+
+            self.pth_file.save()
+
+            if dist.key == 'setuptools':
+                # Ensure that setuptools itself never becomes unavailable!
+                # XXX should this check for latest version?
+                filename = os.path.join(self.install_dir, 'setuptools.pth')
+                if os.path.islink(filename):
+                    os.unlink(filename)
+                f = open(filename, 'wt')
+                f.write(self.pth_file.make_relative(dist.location) + '\n')
+                f.close()
+
+    def unpack_progress(self, src, dst):
+        # Progress filter for unpacking
+        log.debug("Unpacking %s to %s", src, dst)
+        return dst  # only unpack-and-compile skips files for dry run
+
+    def unpack_and_compile(self, egg_path, destination):
+        to_compile = []
+        to_chmod = []
+
+        def pf(src, dst):
+            if dst.endswith('.py') and not src.startswith('EGG-INFO/'):
+                to_compile.append(dst)
+            elif dst.endswith('.dll') or dst.endswith('.so'):
+                to_chmod.append(dst)
+            self.unpack_progress(src, dst)
+            return not self.dry_run and dst or None
+
+        unpack_archive(egg_path, destination, pf)
+        self.byte_compile(to_compile)
+        if not self.dry_run:
+            for f in to_chmod:
+                mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755
+                chmod(f, mode)
+
+    def byte_compile(self, to_compile):
+        if sys.dont_write_bytecode:
+            self.warn('byte-compiling is disabled, skipping.')
+            return
+
+        from distutils.util import byte_compile
+
+        try:
+            # try to make the byte compile messages quieter
+            log.set_verbosity(self.verbose - 1)
+
+            byte_compile(to_compile, optimize=0, force=1, dry_run=self.dry_run)
+            if self.optimize:
+                byte_compile(
+                    to_compile, optimize=self.optimize, force=1,
+                    dry_run=self.dry_run,
+                )
+        finally:
+            log.set_verbosity(self.verbose)  # restore original verbosity
+
+    __no_default_msg = textwrap.dedent("""
+        bad install directory or PYTHONPATH
+
+        You are attempting to install a package to a directory that is not
+        on PYTHONPATH and which Python does not read ".pth" files from.  The
+        installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
+
+            %s
+
+        and your PYTHONPATH environment variable currently contains:
+
+            %r
+
+        Here are some of your options for correcting the problem:
+
+        * You can choose a different installation directory, i.e., one that is
+          on PYTHONPATH or supports .pth files
+
+        * You can add the installation directory to the PYTHONPATH environment
+          variable.  (It must then also be on PYTHONPATH whenever you run
+          Python and want to use the package(s) you are installing.)
+
+        * You can set up the installation directory to support ".pth" files by
+          using one of the approaches described here:
+
+          https://setuptools.readthedocs.io/en/latest/easy_install.html#custom-installation-locations
+
+
+        Please make the appropriate changes for your system and try again.""").lstrip()
+
+    def no_default_version_msg(self):
+        template = self.__no_default_msg
+        return template % (self.install_dir, os.environ.get('PYTHONPATH', ''))
+
+    def install_site_py(self):
+        """Make sure there's a site.py in the target dir, if needed"""
+
+        if self.sitepy_installed:
+            return  # already did it, or don't need to
+
+        sitepy = os.path.join(self.install_dir, "site.py")
+        source = resource_string("setuptools", "site-patch.py")
+        source = source.decode('utf-8')
+        current = ""
+
+        if os.path.exists(sitepy):
+            log.debug("Checking existing site.py in %s", self.install_dir)
+            with io.open(sitepy) as strm:
+                current = strm.read()
+
+            if not current.startswith('def __boot():'):
+                raise DistutilsError(
+                    "%s is not a setuptools-generated site.py; please"
+                    " remove it." % sitepy
+                )
+
+        if current != source:
+            log.info("Creating %s", sitepy)
+            if not self.dry_run:
+                ensure_directory(sitepy)
+                with io.open(sitepy, 'w', encoding='utf-8') as strm:
+                    strm.write(source)
+            self.byte_compile([sitepy])
+
+        self.sitepy_installed = True
+
+    def create_home_path(self):
+        """Create directories under ~."""
+        if not self.user:
+            return
+        home = convert_path(os.path.expanduser("~"))
+        for name, path in six.iteritems(self.config_vars):
+            if path.startswith(home) and not os.path.isdir(path):
+                self.debug_print("os.makedirs('%s', 0o700)" % path)
+                os.makedirs(path, 0o700)
+
+    INSTALL_SCHEMES = dict(
+        posix=dict(
+            install_dir='$base/lib/python$py_version_short/site-packages',
+            script_dir='$base/bin',
+        ),
+    )
+
+    DEFAULT_SCHEME = dict(
+        install_dir='$base/Lib/site-packages',
+        script_dir='$base/Scripts',
+    )
+
+    def _expand(self, *attrs):
+        config_vars = self.get_finalized_command('install').config_vars
+
+        if self.prefix:
+            # Set default install_dir/scripts from --prefix
+            config_vars = config_vars.copy()
+            config_vars['base'] = self.prefix
+            scheme = self.INSTALL_SCHEMES.get(os.name, self.DEFAULT_SCHEME)
+            for attr, val in scheme.items():
+                if getattr(self, attr, None) is None:
+                    setattr(self, attr, val)
+
+        from distutils.util import subst_vars
+
+        for attr in attrs:
+            val = getattr(self, attr)
+            if val is not None:
+                val = subst_vars(val, config_vars)
+                if os.name == 'posix':
+                    val = os.path.expanduser(val)
+                setattr(self, attr, val)
+
+
+def _pythonpath():
+    items = os.environ.get('PYTHONPATH', '').split(os.pathsep)
+    return filter(None, items)
+
+
+def get_site_dirs():
+    """
+    Return a list of 'site' dirs
+    """
+
+    sitedirs = []
+
+    # start with PYTHONPATH
+    sitedirs.extend(_pythonpath())
+
+    prefixes = [sys.prefix]
+    if sys.exec_prefix != sys.prefix:
+        prefixes.append(sys.exec_prefix)
+    for prefix in prefixes:
+        if prefix:
+            if sys.platform in ('os2emx', 'riscos'):
+                sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
+            elif os.sep == '/':
+                sitedirs.extend([
+                    os.path.join(
+                        prefix,
+                        "lib",
+                        "python" + sys.version[:3],
+                        "site-packages",
+                    ),
+                    os.path.join(prefix, "lib", "site-python"),
+                ])
+            else:
+                sitedirs.extend([
+                    prefix,
+                    os.path.join(prefix, "lib", "site-packages"),
+                ])
+            if sys.platform == 'darwin':
+                # for framework builds *only* we add the standard Apple
+                # locations. Currently only per-user, but /Library and
+                # /Network/Library could be added too
+                if 'Python.framework' in prefix:
+                    home = os.environ.get('HOME')
+                    if home:
+                        home_sp = os.path.join(
+                            home,
+                            'Library',
+                            'Python',
+                            sys.version[:3],
+                            'site-packages',
+                        )
+                        sitedirs.append(home_sp)
+    lib_paths = get_path('purelib'), get_path('platlib')
+    for site_lib in lib_paths:
+        if site_lib not in sitedirs:
+            sitedirs.append(site_lib)
+
+    if site.ENABLE_USER_SITE:
+        sitedirs.append(site.USER_SITE)
+
+    try:
+        sitedirs.extend(site.getsitepackages())
+    except AttributeError:
+        pass
+
+    sitedirs = list(map(normalize_path, sitedirs))
+
+    return sitedirs
+
+
+def expand_paths(inputs):
+    """Yield sys.path directories that might contain "old-style" packages"""
+
+    seen = {}
+
+    for dirname in inputs:
+        dirname = normalize_path(dirname)
+        if dirname in seen:
+            continue
+
+        seen[dirname] = 1
+        if not os.path.isdir(dirname):
+            continue
+
+        files = os.listdir(dirname)
+        yield dirname, files
+
+        for name in files:
+            if not name.endswith('.pth'):
+                # We only care about the .pth files
+                continue
+            if name in ('easy-install.pth', 'setuptools.pth'):
+                # Ignore .pth files that we control
+                continue
+
+            # Read the .pth file
+            f = open(os.path.join(dirname, name))
+            lines = list(yield_lines(f))
+            f.close()
+
+            # Yield existing non-dupe, non-import directory lines from it
+            for line in lines:
+                if not line.startswith("import"):
+                    line = normalize_path(line.rstrip())
+                    if line not in seen:
+                        seen[line] = 1
+                        if not os.path.isdir(line):
+                            continue
+                        yield line, os.listdir(line)
+
+
+def extract_wininst_cfg(dist_filename):
+    """Extract configuration data from a bdist_wininst .exe
+
+    Returns a configparser.RawConfigParser, or None
+    """
+    f = open(dist_filename, 'rb')
+    try:
+        endrec = zipfile._EndRecData(f)
+        if endrec is None:
+            return None
+
+        prepended = (endrec[9] - endrec[5]) - endrec[6]
+        if prepended < 12:  # no wininst data here
+            return None
+        f.seek(prepended - 12)
+
+        tag, cfglen, bmlen = struct.unpack("<iii", f.read(12))
+        if tag not in (0x1234567A, 0x1234567B):
+            return None  # not a valid tag
+
+        f.seek(prepended - (12 + cfglen))
+        init = {'version': '', 'target_version': ''}
+        cfg = configparser.RawConfigParser(init)
+        try:
+            part = f.read(cfglen)
+            # Read up to the first null byte.
+            config = part.split(b'\0', 1)[0]
+            # Now the config is in bytes, but for RawConfigParser, it should
+            #  be text, so decode it.
+            config = config.decode(sys.getfilesystemencoding())
+            cfg.readfp(six.StringIO(config))
+        except configparser.Error:
+            return None
+        if not cfg.has_section('metadata') or not cfg.has_section('Setup'):
+            return None
+        return cfg
+
+    finally:
+        f.close()
+
+
+def get_exe_prefixes(exe_filename):
+    """Get exe->egg path translations for a given .exe file"""
+
+    prefixes = [
+        ('PURELIB/', ''),
+        ('PLATLIB/pywin32_system32', ''),
+        ('PLATLIB/', ''),
+        ('SCRIPTS/', 'EGG-INFO/scripts/'),
+        ('DATA/lib/site-packages', ''),
+    ]
+    z = zipfile.ZipFile(exe_filename)
+    try:
+        for info in z.infolist():
+            name = info.filename
+            parts = name.split('/')
+            if len(parts) == 3 and parts[2] == 'PKG-INFO':
+                if parts[1].endswith('.egg-info'):
+                    prefixes.insert(0, ('/'.join(parts[:2]), 'EGG-INFO/'))
+                    break
+            if len(parts) != 2 or not name.endswith('.pth'):
+                continue
+            if name.endswith('-nspkg.pth'):
+                continue
+            if parts[0].upper() in ('PURELIB', 'PLATLIB'):
+                contents = z.read(name)
+                if six.PY3:
+                    contents = contents.decode()
+                for pth in yield_lines(contents):
+                    pth = pth.strip().replace('\\', '/')
+                    if not pth.startswith('import'):
+                        prefixes.append((('%s/%s/' % (parts[0], pth)), ''))
+    finally:
+        z.close()
+    prefixes = [(x.lower(), y) for x, y in prefixes]
+    prefixes.sort()
+    prefixes.reverse()
+    return prefixes
+
+
+class PthDistributions(Environment):
+    """A .pth file with Distribution paths in it"""
+
+    dirty = False
+
+    def __init__(self, filename, sitedirs=()):
+        self.filename = filename
+        self.sitedirs = list(map(normalize_path, sitedirs))
+        self.basedir = normalize_path(os.path.dirname(self.filename))
+        self._load()
+        Environment.__init__(self, [], None, None)
+        for path in yield_lines(self.paths):
+            list(map(self.add, find_distributions(path, True)))
+
+    def _load(self):
+        self.paths = []
+        saw_import = False
+        seen = dict.fromkeys(self.sitedirs)
+        if os.path.isfile(self.filename):
+            f = open(self.filename, 'rt')
+            for line in f:
+                if line.startswith('import'):
+                    saw_import = True
+                    continue
+                path = line.rstrip()
+                self.paths.append(path)
+                if not path.strip() or path.strip().startswith('#'):
+                    continue
+                # skip non-existent paths, in case somebody deleted a package
+                # manually, and duplicate paths as well
+                path = self.paths[-1] = normalize_path(
+                    os.path.join(self.basedir, path)
+                )
+                if not os.path.exists(path) or path in seen:
+                    self.paths.pop()  # skip it
+                    self.dirty = True  # we cleaned up, so we're dirty now :)
+                    continue
+                seen[path] = 1
+            f.close()
+
+        if self.paths and not saw_import:
+            self.dirty = True  # ensure anything we touch has import wrappers
+        while self.paths and not self.paths[-1].strip():
+            self.paths.pop()
+
+    def save(self):
+        """Write changed .pth file back to disk"""
+        if not self.dirty:
+            return
+
+        rel_paths = list(map(self.make_relative, self.paths))
+        if rel_paths:
+            log.debug("Saving %s", self.filename)
+            lines = self._wrap_lines(rel_paths)
+            data = '\n'.join(lines) + '\n'
+
+            if os.path.islink(self.filename):
+                os.unlink(self.filename)
+            with open(self.filename, 'wt') as f:
+                f.write(data)
+
+        elif os.path.exists(self.filename):
+            log.debug("Deleting empty %s", self.filename)
+            os.unlink(self.filename)
+
+        self.dirty = False
+
+    @staticmethod
+    def _wrap_lines(lines):
+        return lines
+
+    def add(self, dist):
+        """Add `dist` to the distribution map"""
+        new_path = (
+            dist.location not in self.paths and (
+                dist.location not in self.sitedirs or
+                # account for '.' being in PYTHONPATH
+                dist.location == os.getcwd()
+            )
+        )
+        if new_path:
+            self.paths.append(dist.location)
+            self.dirty = True
+        Environment.add(self, dist)
+
+    def remove(self, dist):
+        """Remove `dist` from the distribution map"""
+        while dist.location in self.paths:
+            self.paths.remove(dist.location)
+            self.dirty = True
+        Environment.remove(self, dist)
+
+    def make_relative(self, path):
+        npath, last = os.path.split(normalize_path(path))
+        baselen = len(self.basedir)
+        parts = [last]
+        sep = os.altsep == '/' and '/' or os.sep
+        while len(npath) >= baselen:
+            if npath == self.basedir:
+                parts.append(os.curdir)
+                parts.reverse()
+                return sep.join(parts)
+            npath, last = os.path.split(npath)
+            parts.append(last)
+        else:
+            return path
+
+
+class RewritePthDistributions(PthDistributions):
+    @classmethod
+    def _wrap_lines(cls, lines):
+        yield cls.prelude
+        for line in lines:
+            yield line
+        yield cls.postlude
+
+    prelude = _one_liner("""
+        import sys
+        sys.__plen = len(sys.path)
+        """)
+    postlude = _one_liner("""
+        import sys
+        new = sys.path[sys.__plen:]
+        del sys.path[sys.__plen:]
+        p = getattr(sys, '__egginsert', 0)
+        sys.path[p:p] = new
+        sys.__egginsert = p + len(new)
+        """)
+
+
+if os.environ.get('SETUPTOOLS_SYS_PATH_TECHNIQUE', 'raw') == 'rewrite':
+    PthDistributions = RewritePthDistributions
+
+
+def _first_line_re():
+    """
+    Return a regular expression based on first_line_re suitable for matching
+    strings.
+    """
+    if isinstance(first_line_re.pattern, str):
+        return first_line_re
+
+    # first_line_re in Python >=3.1.4 and >=3.2.1 is a bytes pattern.
+    return re.compile(first_line_re.pattern.decode())
+
+
+def auto_chmod(func, arg, exc):
+    if func in [os.unlink, os.remove] and os.name == 'nt':
+        chmod(arg, stat.S_IWRITE)
+        return func(arg)
+    et, ev, _ = sys.exc_info()
+    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))
+
+
+def update_dist_caches(dist_path, fix_zipimporter_caches):
+    """
+    Fix any globally cached `dist_path` related data
+
+    `dist_path` should be a path of a newly installed egg distribution (zipped
+    or unzipped).
+
+    sys.path_importer_cache contains finder objects that have been cached when
+    importing data from the original distribution. Any such finders need to be
+    cleared since the replacement distribution might be packaged differently,
+    e.g. a zipped egg distribution might get replaced with an unzipped egg
+    folder or vice versa. Having the old finders cached may then cause Python
+    to attempt loading modules from the replacement distribution using an
+    incorrect loader.
+
+    zipimport.zipimporter objects are Python loaders charged with importing
+    data packaged inside zip archives. If stale loaders referencing the
+    original distribution, are left behind, they can fail to load modules from
+    the replacement distribution. E.g. if an old zipimport.zipimporter instance
+    is used to load data from a new zipped egg archive, it may cause the
+    operation to attempt to locate the requested data in the wrong location -
+    one indicated by the original distribution's zip archive directory
+    information. Such an operation may then fail outright, e.g. report having
+    read a 'bad local file header', or even worse, it may fail silently &
+    return invalid data.
+
+    zipimport._zip_directory_cache contains cached zip archive directory
+    information for all existing zipimport.zipimporter instances and all such
+    instances connected to the same archive share the same cached directory
+    information.
+
+    If asked, and the underlying Python implementation allows it, we can fix
+    all existing zipimport.zipimporter instances instead of having to track
+    them down and remove them one by one, by updating their shared cached zip
+    archive directory information. This, of course, assumes that the
+    replacement distribution is packaged as a zipped egg.
+
+    If not asked to fix existing zipimport.zipimporter instances, we still do
+    our best to clear any remaining zipimport.zipimporter related cached data
+    that might somehow later get used when attempting to load data from the new
+    distribution and thus cause such load operations to fail. Note that when
+    tracking down such remaining stale data, we can not catch every conceivable
+    usage from here, and we clear only those that we know of and have found to
+    cause problems if left alive. Any remaining caches should be updated by
+    whomever is in charge of maintaining them, i.e. they should be ready to
+    handle us replacing their zip archives with new distributions at runtime.
+
+    """
+    # There are several other known sources of stale zipimport.zipimporter
+    # instances that we do not clear here, but might if ever given a reason to
+    # do so:
+    # * Global setuptools pkg_resources.working_set (a.k.a. 'master working
+    # set') may contain distributions which may in turn contain their
+    #   zipimport.zipimporter loaders.
+    # * Several zipimport.zipimporter loaders held by local variables further
+    #   up the function call stack when running the setuptools installation.
+    # * Already loaded modules may have their __loader__ attribute set to the
+    #   exact loader instance used when importing them. Python 3.4 docs state
+    #   that this information is intended mostly for introspection and so is
+    #   not expected to cause us problems.
+    normalized_path = normalize_path(dist_path)
+    _uncache(normalized_path, sys.path_importer_cache)
+    if fix_zipimporter_caches:
+        _replace_zip_directory_cache_data(normalized_path)
+    else:
+        # Here, even though we do not want to fix existing and now stale
+        # zipimporter cache information, we still want to remove it. Related to
+        # Python's zip archive directory information cache, we clear each of
+        # its stale entries in two phases:
+        #   1. Clear the entry so attempting to access zip archive information
+        #      via any existing stale zipimport.zipimporter instances fails.
+        #   2. Remove the entry from the cache so any newly constructed
+        #      zipimport.zipimporter instances do not end up using old stale
+        #      zip archive directory information.
+        # This whole stale data removal step does not seem strictly necessary,
+        # but has been left in because it was done before we started replacing
+        # the zip archive directory information cache content if possible, and
+        # there are no relevant unit tests that we can depend on to tell us if
+        # this is really needed.
+        _remove_and_clear_zip_directory_cache_data(normalized_path)
+
+
+def _collect_zipimporter_cache_entries(normalized_path, cache):
+    """
+    Return zipimporter cache entry keys related to a given normalized path.
+
+    Alternative path spellings (e.g. those using different character case or
+    those using alternative path separators) related to the same path are
+    included. Any sub-path entries are included as well, i.e. those
+    corresponding to zip archives embedded in other zip archives.
+
+    """
+    result = []
+    prefix_len = len(normalized_path)
+    for p in cache:
+        np = normalize_path(p)
+        if (np.startswith(normalized_path) and
+                np[prefix_len:prefix_len + 1] in (os.sep, '')):
+            result.append(p)
+    return result
+
+
+def _update_zipimporter_cache(normalized_path, cache, updater=None):
+    """
+    Update zipimporter cache data for a given normalized path.
+
+    Any sub-path entries are processed as well, i.e. those corresponding to zip
+    archives embedded in other zip archives.
+
+    Given updater is a callable taking a cache entry key and the original entry
+    (after already removing the entry from the cache), and expected to update
+    the entry and possibly return a new one to be inserted in its place.
+    Returning None indicates that the entry should not be replaced with a new
+    one. If no updater is given, the cache entries are simply removed without
+    any additional processing, the same as if the updater simply returned None.
+
+    """
+    for p in _collect_zipimporter_cache_entries(normalized_path, cache):
+        # N.B. pypy's custom zipimport._zip_directory_cache implementation does
+        # not support the complete dict interface:
+        # * Does not support item assignment, thus not allowing this function
+        #    to be used only for removing existing cache entries.
+        #  * Does not support the dict.pop() method, forcing us to use the
+        #    get/del patterns instead. For more detailed information see the
+        #    following links:
+        #      https://github.com/pypa/setuptools/issues/202#issuecomment-202913420
+        #      http://bit.ly/2h9itJX
+        old_entry = cache[p]
+        del cache[p]
+        new_entry = updater and updater(p, old_entry)
+        if new_entry is not None:
+            cache[p] = new_entry
+
+
+def _uncache(normalized_path, cache):
+    _update_zipimporter_cache(normalized_path, cache)
+
+
+def _remove_and_clear_zip_directory_cache_data(normalized_path):
+    def clear_and_remove_cached_zip_archive_directory_data(path, old_entry):
+        old_entry.clear()
+
+    _update_zipimporter_cache(
+        normalized_path, zipimport._zip_directory_cache,
+        updater=clear_and_remove_cached_zip_archive_directory_data)
+
+
+# PyPy Python implementation does not allow directly writing to the
+# zipimport._zip_directory_cache and so prevents us from attempting to correct
+# its content. The best we can do there is clear the problematic cache content
+# and have PyPy repopulate it as needed. The downside is that if there are any
+# stale zipimport.zipimporter instances laying around, attempting to use them
+# will fail due to not having its zip archive directory information available
+# instead of being automatically corrected to use the new correct zip archive
+# directory information.
+if '__pypy__' in sys.builtin_module_names:
+    _replace_zip_directory_cache_data = \
+        _remove_and_clear_zip_directory_cache_data
+else:
+
+    def _replace_zip_directory_cache_data(normalized_path):
+        def replace_cached_zip_archive_directory_data(path, old_entry):
+            # N.B. In theory, we could load the zip directory information just
+            # once for all updated path spellings, and then copy it locally and
+            # update its contained path strings to contain the correct
+            # spelling, but that seems like a way too invasive move (this cache
+            # structure is not officially documented anywhere and could in
+            # theory change with new Python releases) for no significant
+            # benefit.
+            old_entry.clear()
+            zipimport.zipimporter(path)
+            old_entry.update(zipimport._zip_directory_cache[path])
+            return old_entry
+
+        _update_zipimporter_cache(
+            normalized_path, zipimport._zip_directory_cache,
+            updater=replace_cached_zip_archive_directory_data)
+
+
+def is_python(text, filename='<string>'):
+    "Is this string a valid Python script?"
+    try:
+        compile(text, filename, 'exec')
+    except (SyntaxError, TypeError):
+        return False
+    else:
+        return True
+
+
+def is_sh(executable):
+    """Determine if the specified executable is a .sh (contains a #! line)"""
+    try:
+        with io.open(executable, encoding='latin-1') as fp:
+            magic = fp.read(2)
+    except (OSError, IOError):
+        return executable
+    return magic == '#!'
+
+
+def nt_quote_arg(arg):
+    """Quote a command line argument according to Windows parsing rules"""
+    return subprocess.list2cmdline([arg])
+
+
+def is_python_script(script_text, filename):
+    """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc.
+    """
+    if filename.endswith('.py') or filename.endswith('.pyw'):
+        return True  # extension says it's Python
+    if is_python(script_text, filename):
+        return True  # it's syntactically valid Python
+    if script_text.startswith('#!'):
+        # It begins with a '#!' line, so check if 'python' is in it somewhere
+        return 'python' in script_text.splitlines()[0].lower()
+
+    return False  # Not any Python I can recognize
+
+
+try:
+    from os import chmod as _chmod
+except ImportError:
+    # Jython compatibility
+    def _chmod(*args):
+        pass
+
+
+def chmod(path, mode):
+    log.debug("changing mode of %s to %o", path, mode)
+    try:
+        _chmod(path, mode)
+    except os.error as e:
+        log.debug("chmod failed: %s", e)
+
+
+class CommandSpec(list):
+    """
+    A command spec for a #! header, specified as a list of arguments akin to
+    those passed to Popen.
+    """
+
+    options = []
+    split_args = dict()
+
+    @classmethod
+    def best(cls):
+        """
+        Choose the best CommandSpec class based on environmental conditions.
+        """
+        return cls
+
+    @classmethod
+    def _sys_executable(cls):
+        _default = os.path.normpath(sys.executable)
+        return os.environ.get('__PYVENV_LAUNCHER__', _default)
+
+    @classmethod
+    def from_param(cls, param):
+        """
+        Construct a CommandSpec from a parameter to build_scripts, which may
+        be None.
+        """
+        if isinstance(param, cls):
+            return param
+        if isinstance(param, list):
+            return cls(param)
+        if param is None:
+            return cls.from_environment()
+        # otherwise, assume it's a string.
+        return cls.from_string(param)
+
+    @classmethod
+    def from_environment(cls):
+        return cls([cls._sys_executable()])
+
+    @classmethod
+    def from_string(cls, string):
+        """
+        Construct a command spec from a simple string representing a command
+        line parseable by shlex.split.
+        """
+        items = shlex.split(string, **cls.split_args)
+        return cls(items)
+
+    def install_options(self, script_text):
+        self.options = shlex.split(self._extract_options(script_text))
+        cmdline = subprocess.list2cmdline(self)
+        if not isascii(cmdline):
+            self.options[:0] = ['-x']
+
+    @staticmethod
+    def _extract_options(orig_script):
+        """
+        Extract any options from the first line of the script.
+        """
+        first = (orig_script + '\n').splitlines()[0]
+        match = _first_line_re().match(first)
+        options = match.group(1) or '' if match else ''
+        return options.strip()
+
+    def as_header(self):
+        return self._render(self + list(self.options))
+
+    @staticmethod
+    def _strip_quotes(item):
+        _QUOTES = '"\''
+        for q in _QUOTES:
+            if item.startswith(q) and item.endswith(q):
+                return item[1:-1]
+        return item
+
+    @staticmethod
+    def _render(items):
+        cmdline = subprocess.list2cmdline(
+            CommandSpec._strip_quotes(item.strip()) for item in items)
+        return '#!' + cmdline + '\n'
+
+
+# For pbr compat; will be removed in a future version.
+sys_executable = CommandSpec._sys_executable()
+
+
+class WindowsCommandSpec(CommandSpec):
+    split_args = dict(posix=False)
+
+
+class ScriptWriter(object):
+    """
+    Encapsulates behavior around writing entry point scripts for console and
+    gui apps.
+    """
+
+    template = textwrap.dedent(r"""
+        # EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r
+        __requires__ = %(spec)r
+        import re
+        import sys
+        from pkg_resources import load_entry_point
+
+        if __name__ == '__main__':
+            sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+            sys.exit(
+                load_entry_point(%(spec)r, %(group)r, %(name)r)()
+            )
+    """).lstrip()
+
+    command_spec_class = CommandSpec
+
+    @classmethod
+    def get_script_args(cls, dist, executable=None, wininst=False):
+        # for backward compatibility
+        warnings.warn("Use get_args", DeprecationWarning)
+        writer = (WindowsScriptWriter if wininst else ScriptWriter).best()
+        header = cls.get_script_header("", executable, wininst)
+        return writer.get_args(dist, header)
+
+    @classmethod
+    def get_script_header(cls, script_text, executable=None, wininst=False):
+        # for backward compatibility
+        warnings.warn("Use get_header", DeprecationWarning)
+        if wininst:
+            executable = "python.exe"
+        cmd = cls.command_spec_class.best().from_param(executable)
+        cmd.install_options(script_text)
+        return cmd.as_header()
+
+    @classmethod
+    def get_args(cls, dist, header=None):
+        """
+        Yield write_script() argument tuples for a distribution's
+        console_scripts and gui_scripts entry points.
+        """
+        if header is None:
+            header = cls.get_header()
+        spec = str(dist.as_requirement())
+        for type_ in 'console', 'gui':
+            group = type_ + '_scripts'
+            for name, ep in dist.get_entry_map(group).items():
+                cls._ensure_safe_name(name)
+                script_text = cls.template % locals()
+                args = cls._get_script_args(type_, name, header, script_text)
+                for res in args:
+                    yield res
+
+    @staticmethod
+    def _ensure_safe_name(name):
+        """
+        Prevent paths in *_scripts entry point names.
+        """
+        has_path_sep = re.search(r'[\\/]', name)
+        if has_path_sep:
+            raise ValueError("Path separators not allowed in script names")
+
+    @classmethod
+    def get_writer(cls, force_windows):
+        # for backward compatibility
+        warnings.warn("Use best", DeprecationWarning)
+        return WindowsScriptWriter.best() if force_windows else cls.best()
+
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter for this environment.
+        """
+        if sys.platform == 'win32' or (os.name == 'java' and os._name == 'nt'):
+            return WindowsScriptWriter.best()
+        else:
+            return cls
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        # Simply write the stub with no extension.
+        yield (name, header + script_text)
+
+    @classmethod
+    def get_header(cls, script_text="", executable=None):
+        """Create a #! line, getting options (if any) from script_text"""
+        cmd = cls.command_spec_class.best().from_param(executable)
+        cmd.install_options(script_text)
+        return cmd.as_header()
+
+
+class WindowsScriptWriter(ScriptWriter):
+    command_spec_class = WindowsCommandSpec
+
+    @classmethod
+    def get_writer(cls):
+        # for backward compatibility
+        warnings.warn("Use best", DeprecationWarning)
+        return cls.best()
+
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter suitable for Windows
+        """
+        writer_lookup = dict(
+            executable=WindowsExecutableLauncherWriter,
+            natural=cls,
+        )
+        # for compatibility, use the executable launcher by default
+        launcher = os.environ.get('SETUPTOOLS_LAUNCHER', 'executable')
+        return writer_lookup[launcher]
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        "For Windows, add a .py extension"
+        ext = dict(console='.pya', gui='.pyw')[type_]
+        if ext not in os.environ['PATHEXT'].lower().split(';'):
+            msg = (
+                "{ext} not listed in PATHEXT; scripts will not be "
+                "recognized as executables."
+            ).format(**locals())
+            warnings.warn(msg, UserWarning)
+        old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe']
+        old.remove(ext)
+        header = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield name + ext, header + script_text, 't', blockers
+
+    @classmethod
+    def _adjust_header(cls, type_, orig_header):
+        """
+        Make sure 'pythonw' is used for gui and and 'python' is used for
+        console (regardless of what sys.executable is).
+        """
+        pattern = 'pythonw.exe'
+        repl = 'python.exe'
+        if type_ == 'gui':
+            pattern, repl = repl, pattern
+        pattern_ob = re.compile(re.escape(pattern), re.IGNORECASE)
+        new_header = pattern_ob.sub(string=orig_header, repl=repl)
+        return new_header if cls._use_header(new_header) else orig_header
+
+    @staticmethod
+    def _use_header(new_header):
+        """
+        Should _adjust_header use the replaced header?
+
+        On non-windows systems, always use. On
+        Windows systems, only use the replaced header if it resolves
+        to an executable on the system.
+        """
+        clean_header = new_header[2:-1].strip('"')
+        return sys.platform != 'win32' or find_executable(clean_header)
+
+
+class WindowsExecutableLauncherWriter(WindowsScriptWriter):
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        """
+        For Windows, add a .py extension and an .exe launcher
+        """
+        if type_ == 'gui':
+            launcher_type = 'gui'
+            ext = '-script.pyw'
+            old = ['.pyw']
+        else:
+            launcher_type = 'cli'
+            ext = '-script.py'
+            old = ['.py', '.pyc', '.pyo']
+        hdr = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield (name + ext, hdr + script_text, 't', blockers)
+        yield (
+            name + '.exe', get_win_launcher(launcher_type),
+            'b'  # write in binary mode
+        )
+        if not is_64bit():
+            # install a manifest for the launcher to prevent Windows
+            # from detecting it as an installer (which it will for
+            #  launchers like easy_install.exe). Consider only
+            #  adding a manifest for launchers detected as installers.
+            #  See Distribute #143 for details.
+            m_name = name + '.exe.manifest'
+            yield (m_name, load_launcher_manifest(name), 't')
+
+
+# for backward-compatibility
+get_script_args = ScriptWriter.get_script_args
+get_script_header = ScriptWriter.get_script_header
+
+
+def get_win_launcher(type):
+    """
+    Load the Windows launcher (executable) suitable for launching a script.
+
+    `type` should be either 'cli' or 'gui'
+
+    Returns the executable as a byte string.
+    """
+    launcher_fn = '%s.exe' % type
+    if is_64bit():
+        launcher_fn = launcher_fn.replace(".", "-64.")
+    else:
+        launcher_fn = launcher_fn.replace(".", "-32.")
+    return resource_string('setuptools', launcher_fn)
+
+
+def load_launcher_manifest(name):
+    manifest = pkg_resources.resource_string(__name__, 'launcher manifest.xml')
+    if six.PY2:
+        return manifest % vars()
+    else:
+        return manifest.decode('utf-8') % vars()
+
+
+def rmtree(path, ignore_errors=False, onerror=auto_chmod):
+    return shutil.rmtree(path, ignore_errors, onerror)
+
+
+def current_umask():
+    tmp = os.umask(0o022)
+    os.umask(tmp)
+    return tmp
+
+
+def bootstrap():
+    # This function is called when setuptools*.egg is run using /bin/sh
+    import setuptools
+
+    argv0 = os.path.dirname(setuptools.__path__[0])
+    sys.argv[0] = argv0
+    sys.argv.append(argv0)
+    main()
+
+
+def main(argv=None, **kw):
+    from setuptools import setup
+    from setuptools.dist import Distribution
+
+    class DistributionWithoutHelpCommands(Distribution):
+        common_usage = ""
+
+        def _show_help(self, *args, **kw):
+            with _patch_usage():
+                Distribution._show_help(self, *args, **kw)
+
+    if argv is None:
+        argv = sys.argv[1:]
+
+    with _patch_usage():
+        setup(
+            script_args=['-q', 'easy_install', '-v'] + argv,
+            script_name=sys.argv[0] or 'easy_install',
+            distclass=DistributionWithoutHelpCommands,
+            **kw
+        )
+
+
+@contextlib.contextmanager
+def _patch_usage():
+    import distutils.core
+    USAGE = textwrap.dedent("""
+        usage: %(script)s [options] requirement_or_url ...
+           or: %(script)s --help
+        """).lstrip()
+
+    def gen_usage(script_name):
+        return USAGE % dict(
+            script=os.path.basename(script_name),
+        )
+
+    saved = distutils.core.gen_usage
+    distutils.core.gen_usage = gen_usage
+    try:
+        yield
+    finally:
+        distutils.core.gen_usage = saved
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/egg_info.py b/venv/lib/python3.5/site-packages/setuptools/command/egg_info.py
new file mode 100644
index 0000000..103c5f2
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/egg_info.py
@@ -0,0 +1,699 @@
+"""setuptools.command.egg_info
+
+Create a distribution's .egg-info directory and contents"""
+
+from distutils.filelist import FileList as _FileList
+from distutils.errors import DistutilsInternalError
+from distutils.util import convert_path
+from distutils import log
+import distutils.errors
+import distutils.filelist
+import os
+import re
+import sys
+import io
+import warnings
+import time
+import collections
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map
+
+from setuptools import Command
+from setuptools.command.sdist import sdist
+from setuptools.command.sdist import walk_revctrl
+from setuptools.command.setopt import edit_config
+from setuptools.command import bdist_egg
+from pkg_resources import (
+    parse_requirements, safe_name, parse_version,
+    safe_version, yield_lines, EntryPoint, iter_entry_points, to_filename)
+import setuptools.unicode_utils as unicode_utils
+from setuptools.glob import glob
+
+from pkg_resources.extern import packaging
+
+
+def translate_pattern(glob):
+    """
+    Translate a file path glob like '*.txt' in to a regular expression.
+    This differs from fnmatch.translate which allows wildcards to match
+    directory separators. It also knows about '**/' which matches any number of
+    directories.
+    """
+    pat = ''
+
+    # This will split on '/' within [character classes]. This is deliberate.
+    chunks = glob.split(os.path.sep)
+
+    sep = re.escape(os.sep)
+    valid_char = '[^%s]' % (sep,)
+
+    for c, chunk in enumerate(chunks):
+        last_chunk = c == len(chunks) - 1
+
+        # Chunks that are a literal ** are globstars. They match anything.
+        if chunk == '**':
+            if last_chunk:
+                # Match anything if this is the last component
+                pat += '.*'
+            else:
+                # Match '(name/)*'
+                pat += '(?:%s+%s)*' % (valid_char, sep)
+            continue  # Break here as the whole path component has been handled
+
+        # Find any special characters in the remainder
+        i = 0
+        chunk_len = len(chunk)
+        while i < chunk_len:
+            char = chunk[i]
+            if char == '*':
+                # Match any number of name characters
+                pat += valid_char + '*'
+            elif char == '?':
+                # Match a name character
+                pat += valid_char
+            elif char == '[':
+                # Character class
+                inner_i = i + 1
+                # Skip initial !/] chars
+                if inner_i < chunk_len and chunk[inner_i] == '!':
+                    inner_i = inner_i + 1
+                if inner_i < chunk_len and chunk[inner_i] == ']':
+                    inner_i = inner_i + 1
+
+                # Loop till the closing ] is found
+                while inner_i < chunk_len and chunk[inner_i] != ']':
+                    inner_i = inner_i + 1
+
+                if inner_i >= chunk_len:
+                    # Got to the end of the string without finding a closing ]
+                    # Do not treat this as a matching group, but as a literal [
+                    pat += re.escape(char)
+                else:
+                    # Grab the insides of the [brackets]
+                    inner = chunk[i + 1:inner_i]
+                    char_class = ''
+
+                    # Class negation
+                    if inner[0] == '!':
+                        char_class = '^'
+                        inner = inner[1:]
+
+                    char_class += re.escape(inner)
+                    pat += '[%s]' % (char_class,)
+
+                    # Skip to the end ]
+                    i = inner_i
+            else:
+                pat += re.escape(char)
+            i += 1
+
+        # Join each chunk with the dir separator
+        if not last_chunk:
+            pat += sep
+
+    pat += r'\Z'
+    return re.compile(pat, flags=re.MULTILINE|re.DOTALL)
+
+
+class egg_info(Command):
+    description = "create a distribution's .egg-info directory"
+
+    user_options = [
+        ('egg-base=', 'e', "directory containing .egg-info directories"
+                           " (default: top of the source tree)"),
+        ('tag-date', 'd', "Add date stamp (e.g. 20050528) to version number"),
+        ('tag-build=', 'b', "Specify explicit tag to add to version number"),
+        ('no-date', 'D', "Don't include date stamp [default]"),
+    ]
+
+    boolean_options = ['tag-date']
+    negative_opt = {
+        'no-date': 'tag-date',
+    }
+
+    def initialize_options(self):
+        self.egg_name = None
+        self.egg_version = None
+        self.egg_base = None
+        self.egg_info = None
+        self.tag_build = None
+        self.tag_date = 0
+        self.broken_egg_info = False
+        self.vtags = None
+
+    ####################################
+    # allow the 'tag_svn_revision' to be detected and
+    # set, supporting sdists built on older Setuptools.
+    @property
+    def tag_svn_revision(self):
+        pass
+
+    @tag_svn_revision.setter
+    def tag_svn_revision(self, value):
+        pass
+    ####################################
+
+    def save_version_info(self, filename):
+        """
+        Materialize the value of date into the
+        build tag. Install build keys in a deterministic order
+        to avoid arbitrary reordering on subsequent builds.
+        """
+        egg_info = collections.OrderedDict()
+        # follow the order these keys would have been added
+        # when PYTHONHASHSEED=0
+        egg_info['tag_build'] = self.tags()
+        egg_info['tag_date'] = 0
+        edit_config(filename, dict(egg_info=egg_info))
+
+    def finalize_options(self):
+        self.egg_name = safe_name(self.distribution.get_name())
+        self.vtags = self.tags()
+        self.egg_version = self.tagged_version()
+
+        parsed_version = parse_version(self.egg_version)
+
+        try:
+            is_version = isinstance(parsed_version, packaging.version.Version)
+            spec = (
+                "%s==%s" if is_version else "%s===%s"
+            )
+            list(
+                parse_requirements(spec % (self.egg_name, self.egg_version))
+            )
+        except ValueError:
+            raise distutils.errors.DistutilsOptionError(
+                "Invalid distribution name or version syntax: %s-%s" %
+                (self.egg_name, self.egg_version)
+            )
+
+        if self.egg_base is None:
+            dirs = self.distribution.package_dir
+            self.egg_base = (dirs or {}).get('', os.curdir)
+
+        self.ensure_dirname('egg_base')
+        self.egg_info = to_filename(self.egg_name) + '.egg-info'
+        if self.egg_base != os.curdir:
+            self.egg_info = os.path.join(self.egg_base, self.egg_info)
+        if '-' in self.egg_name:
+            self.check_broken_egg_info()
+
+        # Set package version for the benefit of dumber commands
+        # (e.g. sdist, bdist_wininst, etc.)
+        #
+        self.distribution.metadata.version = self.egg_version
+
+        # If we bootstrapped around the lack of a PKG-INFO, as might be the
+        # case in a fresh checkout, make sure that any special tags get added
+        # to the version info
+        #
+        pd = self.distribution._patched_dist
+        if pd is not None and pd.key == self.egg_name.lower():
+            pd._version = self.egg_version
+            pd._parsed_version = parse_version(self.egg_version)
+            self.distribution._patched_dist = None
+
+    def write_or_delete_file(self, what, filename, data, force=False):
+        """Write `data` to `filename` or delete if empty
+
+        If `data` is non-empty, this routine is the same as ``write_file()``.
+        If `data` is empty but not ``None``, this is the same as calling
+        ``delete_file(filename)`.  If `data` is ``None``, then this is a no-op
+        unless `filename` exists, in which case a warning is issued about the
+        orphaned file (if `force` is false), or deleted (if `force` is true).
+        """
+        if data:
+            self.write_file(what, filename, data)
+        elif os.path.exists(filename):
+            if data is None and not force:
+                log.warn(
+                    "%s not set in setup(), but %s exists", what, filename
+                )
+                return
+            else:
+                self.delete_file(filename)
+
+    def write_file(self, what, filename, data):
+        """Write `data` to `filename` (if not a dry run) after announcing it
+
+        `what` is used in a log message to identify what is being written
+        to the file.
+        """
+        log.info("writing %s to %s", what, filename)
+        if six.PY3:
+            data = data.encode("utf-8")
+        if not self.dry_run:
+            f = open(filename, 'wb')
+            f.write(data)
+            f.close()
+
+    def delete_file(self, filename):
+        """Delete `filename` (if not a dry run) after announcing it"""
+        log.info("deleting %s", filename)
+        if not self.dry_run:
+            os.unlink(filename)
+
+    def tagged_version(self):
+        version = self.distribution.get_version()
+        # egg_info may be called more than once for a distribution,
+        # in which case the version string already contains all tags.
+        if self.vtags and version.endswith(self.vtags):
+            return safe_version(version)
+        return safe_version(version + self.vtags)
+
+    def run(self):
+        self.mkpath(self.egg_info)
+        installer = self.distribution.fetch_build_egg
+        for ep in iter_entry_points('egg_info.writers'):
+            ep.require(installer=installer)
+            writer = ep.resolve()
+            writer(self, ep.name, os.path.join(self.egg_info, ep.name))
+
+        # Get rid of native_libs.txt if it was put there by older bdist_egg
+        nl = os.path.join(self.egg_info, "native_libs.txt")
+        if os.path.exists(nl):
+            self.delete_file(nl)
+
+        self.find_sources()
+
+    def tags(self):
+        version = ''
+        if self.tag_build:
+            version += self.tag_build
+        if self.tag_date:
+            version += time.strftime("-%Y%m%d")
+        return version
+
+    def find_sources(self):
+        """Generate SOURCES.txt manifest file"""
+        manifest_filename = os.path.join(self.egg_info, "SOURCES.txt")
+        mm = manifest_maker(self.distribution)
+        mm.manifest = manifest_filename
+        mm.run()
+        self.filelist = mm.filelist
+
+    def check_broken_egg_info(self):
+        bei = self.egg_name + '.egg-info'
+        if self.egg_base != os.curdir:
+            bei = os.path.join(self.egg_base, bei)
+        if os.path.exists(bei):
+            log.warn(
+                "-" * 78 + '\n'
+                "Note: Your current .egg-info directory has a '-' in its name;"
+                '\nthis will not work correctly with "setup.py develop".\n\n'
+                'Please rename %s to %s to correct this problem.\n' + '-' * 78,
+                bei, self.egg_info
+            )
+            self.broken_egg_info = self.egg_info
+            self.egg_info = bei  # make it work for now
+
+
+class FileList(_FileList):
+    # Implementations of the various MANIFEST.in commands
+
+    def process_template_line(self, line):
+        # Parse the line: split it up, make sure the right number of words
+        # is there, and return the relevant words.  'action' is always
+        # defined: it's the first word of the line.  Which of the other
+        # three are defined depends on the action; it'll be either
+        # patterns, (dir and patterns), or (dir_pattern).
+        (action, patterns, dir, dir_pattern) = self._parse_template_line(line)
+
+        # OK, now we know that the action is valid and we have the
+        # right number of words on the line for that action -- so we
+        # can proceed with minimal error-checking.
+        if action == 'include':
+            self.debug_print("include " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.include(pattern):
+                    log.warn("warning: no files found matching '%s'", pattern)
+
+        elif action == 'exclude':
+            self.debug_print("exclude " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.exclude(pattern):
+                    log.warn(("warning: no previously-included files "
+                              "found matching '%s'"), pattern)
+
+        elif action == 'global-include':
+            self.debug_print("global-include " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.global_include(pattern):
+                    log.warn(("warning: no files found matching '%s' "
+                              "anywhere in distribution"), pattern)
+
+        elif action == 'global-exclude':
+            self.debug_print("global-exclude " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.global_exclude(pattern):
+                    log.warn(("warning: no previously-included files matching "
+                              "'%s' found anywhere in distribution"),
+                             pattern)
+
+        elif action == 'recursive-include':
+            self.debug_print("recursive-include %s %s" %
+                             (dir, ' '.join(patterns)))
+            for pattern in patterns:
+                if not self.recursive_include(dir, pattern):
+                    log.warn(("warning: no files found matching '%s' "
+                              "under directory '%s'"),
+                             pattern, dir)
+
+        elif action == 'recursive-exclude':
+            self.debug_print("recursive-exclude %s %s" %
+                             (dir, ' '.join(patterns)))
+            for pattern in patterns:
+                if not self.recursive_exclude(dir, pattern):
+                    log.warn(("warning: no previously-included files matching "
+                              "'%s' found under directory '%s'"),
+                             pattern, dir)
+
+        elif action == 'graft':
+            self.debug_print("graft " + dir_pattern)
+            if not self.graft(dir_pattern):
+                log.warn("warning: no directories found matching '%s'",
+                         dir_pattern)
+
+        elif action == 'prune':
+            self.debug_print("prune " + dir_pattern)
+            if not self.prune(dir_pattern):
+                log.warn(("no previously-included directories found "
+                          "matching '%s'"), dir_pattern)
+
+        else:
+            raise DistutilsInternalError(
+                "this cannot happen: invalid action '%s'" % action)
+
+    def _remove_files(self, predicate):
+        """
+        Remove all files from the file list that match the predicate.
+        Return True if any matching files were removed
+        """
+        found = False
+        for i in range(len(self.files) - 1, -1, -1):
+            if predicate(self.files[i]):
+                self.debug_print(" removing " + self.files[i])
+                del self.files[i]
+                found = True
+        return found
+
+    def include(self, pattern):
+        """Include files that match 'pattern'."""
+        found = [f for f in glob(pattern) if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def exclude(self, pattern):
+        """Exclude files that match 'pattern'."""
+        match = translate_pattern(pattern)
+        return self._remove_files(match.match)
+
+    def recursive_include(self, dir, pattern):
+        """
+        Include all files anywhere in 'dir/' that match the pattern.
+        """
+        full_pattern = os.path.join(dir, '**', pattern)
+        found = [f for f in glob(full_pattern, recursive=True)
+                 if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def recursive_exclude(self, dir, pattern):
+        """
+        Exclude any file anywhere in 'dir/' that match the pattern.
+        """
+        match = translate_pattern(os.path.join(dir, '**', pattern))
+        return self._remove_files(match.match)
+
+    def graft(self, dir):
+        """Include all files from 'dir/'."""
+        found = [
+            item
+            for match_dir in glob(dir)
+            for item in distutils.filelist.findall(match_dir)
+        ]
+        self.extend(found)
+        return bool(found)
+
+    def prune(self, dir):
+        """Filter out files from 'dir/'."""
+        match = translate_pattern(os.path.join(dir, '**'))
+        return self._remove_files(match.match)
+
+    def global_include(self, pattern):
+        """
+        Include all files anywhere in the current directory that match the
+        pattern. This is very inefficient on large file trees.
+        """
+        if self.allfiles is None:
+            self.findall()
+        match = translate_pattern(os.path.join('**', pattern))
+        found = [f for f in self.allfiles if match.match(f)]
+        self.extend(found)
+        return bool(found)
+
+    def global_exclude(self, pattern):
+        """
+        Exclude all files anywhere that match the pattern.
+        """
+        match = translate_pattern(os.path.join('**', pattern))
+        return self._remove_files(match.match)
+
+    def append(self, item):
+        if item.endswith('\r'):  # Fix older sdists built on Windows
+            item = item[:-1]
+        path = convert_path(item)
+
+        if self._safe_path(path):
+            self.files.append(path)
+
+    def extend(self, paths):
+        self.files.extend(filter(self._safe_path, paths))
+
+    def _repair(self):
+        """
+        Replace self.files with only safe paths
+
+        Because some owners of FileList manipulate the underlying
+        ``files`` attribute directly, this method must be called to
+        repair those paths.
+        """
+        self.files = list(filter(self._safe_path, self.files))
+
+    def _safe_path(self, path):
+        enc_warn = "'%s' not %s encodable -- skipping"
+
+        # To avoid accidental trans-codings errors, first to unicode
+        u_path = unicode_utils.filesys_decode(path)
+        if u_path is None:
+            log.warn("'%s' in unexpected encoding -- skipping" % path)
+            return False
+
+        # Must ensure utf-8 encodability
+        utf8_path = unicode_utils.try_encode(u_path, "utf-8")
+        if utf8_path is None:
+            log.warn(enc_warn, path, 'utf-8')
+            return False
+
+        try:
+            # accept is either way checks out
+            if os.path.exists(u_path) or os.path.exists(utf8_path):
+                return True
+        # this will catch any encode errors decoding u_path
+        except UnicodeEncodeError:
+            log.warn(enc_warn, path, sys.getfilesystemencoding())
+
+
+class manifest_maker(sdist):
+    template = "MANIFEST.in"
+
+    def initialize_options(self):
+        self.use_defaults = 1
+        self.prune = 1
+        self.manifest_only = 1
+        self.force_manifest = 1
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        self.filelist = FileList()
+        if not os.path.exists(self.manifest):
+            self.write_manifest()  # it must exist so it'll get in the list
+        self.add_defaults()
+        if os.path.exists(self.template):
+            self.read_template()
+        self.prune_file_list()
+        self.filelist.sort()
+        self.filelist.remove_duplicates()
+        self.write_manifest()
+
+    def _manifest_normalize(self, path):
+        path = unicode_utils.filesys_decode(path)
+        return path.replace(os.sep, '/')
+
+    def write_manifest(self):
+        """
+        Write the file list in 'self.filelist' to the manifest file
+        named by 'self.manifest'.
+        """
+        self.filelist._repair()
+
+        # Now _repairs should encodability, but not unicode
+        files = [self._manifest_normalize(f) for f in self.filelist.files]
+        msg = "writing manifest file '%s'" % self.manifest
+        self.execute(write_file, (self.manifest, files), msg)
+
+    def warn(self, msg):
+        if not self._should_suppress_warning(msg):
+            sdist.warn(self, msg)
+
+    @staticmethod
+    def _should_suppress_warning(msg):
+        """
+        suppress missing-file warnings from sdist
+        """
+        return re.match(r"standard file .*not found", msg)
+
+    def add_defaults(self):
+        sdist.add_defaults(self)
+        self.filelist.append(self.template)
+        self.filelist.append(self.manifest)
+        rcfiles = list(walk_revctrl())
+        if rcfiles:
+            self.filelist.extend(rcfiles)
+        elif os.path.exists(self.manifest):
+            self.read_manifest()
+        ei_cmd = self.get_finalized_command('egg_info')
+        self.filelist.graft(ei_cmd.egg_info)
+
+    def prune_file_list(self):
+        build = self.get_finalized_command('build')
+        base_dir = self.distribution.get_fullname()
+        self.filelist.prune(build.build_base)
+        self.filelist.prune(base_dir)
+        sep = re.escape(os.sep)
+        self.filelist.exclude_pattern(r'(^|' + sep + r')(RCS|CVS|\.svn)' + sep,
+                                      is_regex=1)
+
+
+def write_file(filename, contents):
+    """Create a file with the specified name and write 'contents' (a
+    sequence of strings without line terminators) to it.
+    """
+    contents = "\n".join(contents)
+
+    # assuming the contents has been vetted for utf-8 encoding
+    contents = contents.encode("utf-8")
+
+    with open(filename, "wb") as f:  # always write POSIX-style manifest
+        f.write(contents)
+
+
+def write_pkg_info(cmd, basename, filename):
+    log.info("writing %s", filename)
+    if not cmd.dry_run:
+        metadata = cmd.distribution.metadata
+        metadata.version, oldver = cmd.egg_version, metadata.version
+        metadata.name, oldname = cmd.egg_name, metadata.name
+        metadata.long_description_content_type = getattr(
+            cmd.distribution,
+            'long_description_content_type'
+        )
+        try:
+            # write unescaped data to PKG-INFO, so older pkg_resources
+            # can still parse it
+            metadata.write_pkg_info(cmd.egg_info)
+        finally:
+            metadata.name, metadata.version = oldname, oldver
+
+        safe = getattr(cmd.distribution, 'zip_safe', None)
+
+        bdist_egg.write_safety_flag(cmd.egg_info, safe)
+
+
+def warn_depends_obsolete(cmd, basename, filename):
+    if os.path.exists(filename):
+        log.warn(
+            "WARNING: 'depends.txt' is not used by setuptools 0.6!\n"
+            "Use the install_requires/extras_require setup() args instead."
+        )
+
+
+def _write_requirements(stream, reqs):
+    lines = yield_lines(reqs or ())
+    append_cr = lambda line: line + '\n'
+    lines = map(append_cr, lines)
+    stream.writelines(lines)
+
+
+def write_requirements(cmd, basename, filename):
+    dist = cmd.distribution
+    data = six.StringIO()
+    _write_requirements(data, dist.install_requires)
+    extras_require = dist.extras_require or {}
+    for extra in sorted(extras_require):
+        data.write('\n[{extra}]\n'.format(**vars()))
+        _write_requirements(data, extras_require[extra])
+    cmd.write_or_delete_file("requirements", filename, data.getvalue())
+
+
+def write_setup_requirements(cmd, basename, filename):
+    data = io.StringIO()
+    _write_requirements(data, cmd.distribution.setup_requires)
+    cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())
+
+
+def write_toplevel_names(cmd, basename, filename):
+    pkgs = dict.fromkeys(
+        [
+            k.split('.', 1)[0]
+            for k in cmd.distribution.iter_distribution_names()
+        ]
+    )
+    cmd.write_file("top-level names", filename, '\n'.join(sorted(pkgs)) + '\n')
+
+
+def overwrite_arg(cmd, basename, filename):
+    write_arg(cmd, basename, filename, True)
+
+
+def write_arg(cmd, basename, filename, force=False):
+    argname = os.path.splitext(basename)[0]
+    value = getattr(cmd.distribution, argname, None)
+    if value is not None:
+        value = '\n'.join(value) + '\n'
+    cmd.write_or_delete_file(argname, filename, value, force)
+
+
+def write_entries(cmd, basename, filename):
+    ep = cmd.distribution.entry_points
+
+    if isinstance(ep, six.string_types) or ep is None:
+        data = ep
+    elif ep is not None:
+        data = []
+        for section, contents in sorted(ep.items()):
+            if not isinstance(contents, six.string_types):
+                contents = EntryPoint.parse_group(section, contents)
+                contents = '\n'.join(sorted(map(str, contents.values())))
+            data.append('[%s]\n%s\n\n' % (section, contents))
+        data = ''.join(data)
+
+    cmd.write_or_delete_file('entry points', filename, data, True)
+
+
+def get_pkg_info_revision():
+    """
+    Get a -r### off of PKG-INFO Version in case this is an sdist of
+    a subversion revision.
+    """
+    warnings.warn("get_pkg_info_revision is deprecated.", DeprecationWarning)
+    if os.path.exists('PKG-INFO'):
+        with io.open('PKG-INFO') as f:
+            for line in f:
+                match = re.match(r"Version:.*-r(\d+)\s*$", line)
+                if match:
+                    return int(match.group(1))
+    return 0
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/install.py b/venv/lib/python3.5/site-packages/setuptools/command/install.py
new file mode 100644
index 0000000..31a5ddb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/install.py
@@ -0,0 +1,125 @@
+from distutils.errors import DistutilsArgError
+import inspect
+import glob
+import warnings
+import platform
+import distutils.command.install as orig
+
+import setuptools
+
+# Prior to numpy 1.9, NumPy relies on the '_install' name, so provide it for
+# now. See https://github.com/pypa/setuptools/issues/199/
+_install = orig.install
+
+
+class install(orig.install):
+    """Use easy_install to install the package, w/dependencies"""
+
+    user_options = orig.install.user_options + [
+        ('old-and-unmanageable', None, "Try not to use this!"),
+        ('single-version-externally-managed', None,
+         "used by system package builders to create 'flat' eggs"),
+    ]
+    boolean_options = orig.install.boolean_options + [
+        'old-and-unmanageable', 'single-version-externally-managed',
+    ]
+    new_commands = [
+        ('install_egg_info', lambda self: True),
+        ('install_scripts', lambda self: True),
+    ]
+    _nc = dict(new_commands)
+
+    def initialize_options(self):
+        orig.install.initialize_options(self)
+        self.old_and_unmanageable = None
+        self.single_version_externally_managed = None
+
+    def finalize_options(self):
+        orig.install.finalize_options(self)
+        if self.root:
+            self.single_version_externally_managed = True
+        elif self.single_version_externally_managed:
+            if not self.root and not self.record:
+                raise DistutilsArgError(
+                    "You must specify --record or --root when building system"
+                    " packages"
+                )
+
+    def handle_extra_path(self):
+        if self.root or self.single_version_externally_managed:
+            # explicit backward-compatibility mode, allow extra_path to work
+            return orig.install.handle_extra_path(self)
+
+        # Ignore extra_path when installing an egg (or being run by another
+        # command without --root or --single-version-externally-managed
+        self.path_file = None
+        self.extra_dirs = ''
+
+    def run(self):
+        # Explicit request for old-style install?  Just do it
+        if self.old_and_unmanageable or self.single_version_externally_managed:
+            return orig.install.run(self)
+
+        if not self._called_from_setup(inspect.currentframe()):
+            # Run in backward-compatibility mode to support bdist_* commands.
+            orig.install.run(self)
+        else:
+            self.do_egg_install()
+
+    @staticmethod
+    def _called_from_setup(run_frame):
+        """
+        Attempt to detect whether run() was called from setup() or by another
+        command.  If called by setup(), the parent caller will be the
+        'run_command' method in 'distutils.dist', and *its* caller will be
+        the 'run_commands' method.  If called any other way, the
+        immediate caller *might* be 'run_command', but it won't have been
+        called by 'run_commands'. Return True in that case or if a call stack
+        is unavailable. Return False otherwise.
+        """
+        if run_frame is None:
+            msg = "Call stack not available. bdist_* commands may fail."
+            warnings.warn(msg)
+            if platform.python_implementation() == 'IronPython':
+                msg = "For best results, pass -X:Frames to enable call stack."
+                warnings.warn(msg)
+            return True
+        res = inspect.getouterframes(run_frame)[2]
+        caller, = res[:1]
+        info = inspect.getframeinfo(caller)
+        caller_module = caller.f_globals.get('__name__', '')
+        return (
+            caller_module == 'distutils.dist'
+            and info.function == 'run_commands'
+        )
+
+    def do_egg_install(self):
+
+        easy_install = self.distribution.get_command_class('easy_install')
+
+        cmd = easy_install(
+            self.distribution, args="x", root=self.root, record=self.record,
+        )
+        cmd.ensure_finalized()  # finalize before bdist_egg munges install cmd
+        cmd.always_copy_from = '.'  # make sure local-dir eggs get installed
+
+        # pick up setup-dir .egg files only: no .egg-info
+        cmd.package_index.scan(glob.glob('*.egg'))
+
+        self.run_command('bdist_egg')
+        args = [self.distribution.get_command_obj('bdist_egg').egg_output]
+
+        if setuptools.bootstrap_install_from:
+            # Bootstrap self-installation of setuptools
+            args.insert(0, setuptools.bootstrap_install_from)
+
+        cmd.args = args
+        cmd.run()
+        setuptools.bootstrap_install_from = None
+
+
+# XXX Python 3.1 doesn't see _nc if this is inside the class
+install.sub_commands = (
+    [cmd for cmd in orig.install.sub_commands if cmd[0] not in install._nc] +
+    install.new_commands
+)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/install_egg_info.py b/venv/lib/python3.5/site-packages/setuptools/command/install_egg_info.py
new file mode 100644
index 0000000..edc4718
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/install_egg_info.py
@@ -0,0 +1,62 @@
+from distutils import log, dir_util
+import os
+
+from setuptools import Command
+from setuptools import namespaces
+from setuptools.archive_util import unpack_archive
+import pkg_resources
+
+
+class install_egg_info(namespaces.Installer, Command):
+    """Install an .egg-info directory for the package"""
+
+    description = "Install an .egg-info directory for the package"
+
+    user_options = [
+        ('install-dir=', 'd', "directory to install to"),
+    ]
+
+    def initialize_options(self):
+        self.install_dir = None
+
+    def finalize_options(self):
+        self.set_undefined_options('install_lib',
+                                   ('install_dir', 'install_dir'))
+        ei_cmd = self.get_finalized_command("egg_info")
+        basename = pkg_resources.Distribution(
+            None, None, ei_cmd.egg_name, ei_cmd.egg_version
+        ).egg_name() + '.egg-info'
+        self.source = ei_cmd.egg_info
+        self.target = os.path.join(self.install_dir, basename)
+        self.outputs = []
+
+    def run(self):
+        self.run_command('egg_info')
+        if os.path.isdir(self.target) and not os.path.islink(self.target):
+            dir_util.remove_tree(self.target, dry_run=self.dry_run)
+        elif os.path.exists(self.target):
+            self.execute(os.unlink, (self.target,), "Removing " + self.target)
+        if not self.dry_run:
+            pkg_resources.ensure_directory(self.target)
+        self.execute(
+            self.copytree, (), "Copying %s to %s" % (self.source, self.target)
+        )
+        self.install_namespaces()
+
+    def get_outputs(self):
+        return self.outputs
+
+    def copytree(self):
+        # Copy the .egg-info tree to site-packages
+        def skimmer(src, dst):
+            # filter out source-control directories; note that 'src' is always
+            # a '/'-separated path, regardless of platform.  'dst' is a
+            # platform-specific path.
+            for skip in '.svn/', 'CVS/':
+                if src.startswith(skip) or '/' + skip in src:
+                    return None
+            self.outputs.append(dst)
+            log.debug("Copying %s to %s", src, dst)
+            return dst
+
+        unpack_archive(self.source, self.target, skimmer)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/install_lib.py b/venv/lib/python3.5/site-packages/setuptools/command/install_lib.py
new file mode 100644
index 0000000..2b31c3e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/install_lib.py
@@ -0,0 +1,121 @@
+import os
+import imp
+from itertools import product, starmap
+import distutils.command.install_lib as orig
+
+
+class install_lib(orig.install_lib):
+    """Don't add compiled flags to filenames of non-Python files"""
+
+    def run(self):
+        self.build()
+        outfiles = self.install()
+        if outfiles is not None:
+            # always compile, in case we have any extension stubs to deal with
+            self.byte_compile(outfiles)
+
+    def get_exclusions(self):
+        """
+        Return a collections.Sized collections.Container of paths to be
+        excluded for single_version_externally_managed installations.
+        """
+        all_packages = (
+            pkg
+            for ns_pkg in self._get_SVEM_NSPs()
+            for pkg in self._all_packages(ns_pkg)
+        )
+
+        excl_specs = product(all_packages, self._gen_exclusion_paths())
+        return set(starmap(self._exclude_pkg_path, excl_specs))
+
+    def _exclude_pkg_path(self, pkg, exclusion_path):
+        """
+        Given a package name and exclusion path within that package,
+        compute the full exclusion path.
+        """
+        parts = pkg.split('.') + [exclusion_path]
+        return os.path.join(self.install_dir, *parts)
+
+    @staticmethod
+    def _all_packages(pkg_name):
+        """
+        >>> list(install_lib._all_packages('foo.bar.baz'))
+        ['foo.bar.baz', 'foo.bar', 'foo']
+        """
+        while pkg_name:
+            yield pkg_name
+            pkg_name, sep, child = pkg_name.rpartition('.')
+
+    def _get_SVEM_NSPs(self):
+        """
+        Get namespace packages (list) but only for
+        single_version_externally_managed installations and empty otherwise.
+        """
+        # TODO: is it necessary to short-circuit here? i.e. what's the cost
+        # if get_finalized_command is called even when namespace_packages is
+        # False?
+        if not self.distribution.namespace_packages:
+            return []
+
+        install_cmd = self.get_finalized_command('install')
+        svem = install_cmd.single_version_externally_managed
+
+        return self.distribution.namespace_packages if svem else []
+
+    @staticmethod
+    def _gen_exclusion_paths():
+        """
+        Generate file paths to be excluded for namespace packages (bytecode
+        cache files).
+        """
+        # always exclude the package module itself
+        yield '__init__.py'
+
+        yield '__init__.pyc'
+        yield '__init__.pyo'
+
+        if not hasattr(imp, 'get_tag'):
+            return
+
+        base = os.path.join('__pycache__', '__init__.' + imp.get_tag())
+        yield base + '.pyc'
+        yield base + '.pyo'
+        yield base + '.opt-1.pyc'
+        yield base + '.opt-2.pyc'
+
+    def copy_tree(
+            self, infile, outfile,
+            preserve_mode=1, preserve_times=1, preserve_symlinks=0, level=1
+    ):
+        assert preserve_mode and preserve_times and not preserve_symlinks
+        exclude = self.get_exclusions()
+
+        if not exclude:
+            return orig.install_lib.copy_tree(self, infile, outfile)
+
+        # Exclude namespace package __init__.py* files from the output
+
+        from setuptools.archive_util import unpack_directory
+        from distutils import log
+
+        outfiles = []
+
+        def pf(src, dst):
+            if dst in exclude:
+                log.warn("Skipping installation of %s (namespace package)",
+                         dst)
+                return False
+
+            log.info("copying %s -> %s", src, os.path.dirname(dst))
+            outfiles.append(dst)
+            return dst
+
+        unpack_directory(infile, outfile, pf)
+        return outfiles
+
+    def get_outputs(self):
+        outputs = orig.install_lib.get_outputs(self)
+        exclude = self.get_exclusions()
+        if exclude:
+            return [f for f in outputs if f not in exclude]
+        return outputs
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/install_scripts.py b/venv/lib/python3.5/site-packages/setuptools/command/install_scripts.py
new file mode 100644
index 0000000..1623427
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/install_scripts.py
@@ -0,0 +1,65 @@
+from distutils import log
+import distutils.command.install_scripts as orig
+import os
+import sys
+
+from pkg_resources import Distribution, PathMetadata, ensure_directory
+
+
+class install_scripts(orig.install_scripts):
+    """Do normal script install, plus any egg_info wrapper scripts"""
+
+    def initialize_options(self):
+        orig.install_scripts.initialize_options(self)
+        self.no_ep = False
+
+    def run(self):
+        import setuptools.command.easy_install as ei
+
+        self.run_command("egg_info")
+        if self.distribution.scripts:
+            orig.install_scripts.run(self)  # run first to set up self.outfiles
+        else:
+            self.outfiles = []
+        if self.no_ep:
+            # don't install entry point scripts into .egg file!
+            return
+
+        ei_cmd = self.get_finalized_command("egg_info")
+        dist = Distribution(
+            ei_cmd.egg_base, PathMetadata(ei_cmd.egg_base, ei_cmd.egg_info),
+            ei_cmd.egg_name, ei_cmd.egg_version,
+        )
+        bs_cmd = self.get_finalized_command('build_scripts')
+        exec_param = getattr(bs_cmd, 'executable', None)
+        bw_cmd = self.get_finalized_command("bdist_wininst")
+        is_wininst = getattr(bw_cmd, '_is_running', False)
+        writer = ei.ScriptWriter
+        if is_wininst:
+            exec_param = "python.exe"
+            writer = ei.WindowsScriptWriter
+        if exec_param == sys.executable:
+            # In case the path to the Python executable contains a space, wrap
+            # it so it's not split up.
+            exec_param = [exec_param]
+        # resolve the writer to the environment
+        writer = writer.best()
+        cmd = writer.command_spec_class.best().from_param(exec_param)
+        for args in writer.get_args(dist, cmd.as_header()):
+            self.write_script(*args)
+
+    def write_script(self, script_name, contents, mode="t", *ignored):
+        """Write an executable file to the scripts directory"""
+        from setuptools.command.easy_install import chmod, current_umask
+
+        log.info("Installing %s script to %s", script_name, self.install_dir)
+        target = os.path.join(self.install_dir, script_name)
+        self.outfiles.append(target)
+
+        mask = current_umask()
+        if not self.dry_run:
+            ensure_directory(target)
+            f = open(target, "w" + mode)
+            f.write(contents)
+            f.close()
+            chmod(target, 0o777 - mask)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml b/venv/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml
new file mode 100644
index 0000000..5972a96
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml	
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+    <assemblyIdentity version="1.0.0.0"
+                      processorArchitecture="X86"
+                      name="%(name)s"
+                      type="win32"/>
+    
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+        <security>
+            <requestedPrivileges>
+                <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+            </requestedPrivileges>
+        </security>
+    </trustInfo>
+</assembly>
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/py36compat.py b/venv/lib/python3.5/site-packages/setuptools/command/py36compat.py
new file mode 100644
index 0000000..61063e7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/py36compat.py
@@ -0,0 +1,136 @@
+import os
+from glob import glob
+from distutils.util import convert_path
+from distutils.command import sdist
+
+from setuptools.extern.six.moves import filter
+
+
+class sdist_add_defaults:
+    """
+    Mix-in providing forward-compatibility for functionality as found in
+    distutils on Python 3.7.
+
+    Do not edit the code in this class except to update functionality
+    as implemented in distutils. Instead, override in the subclass.
+    """
+
+    def add_defaults(self):
+        """Add all the default files to self.filelist:
+          - README or README.txt
+          - setup.py
+          - test/test*.py
+          - all pure Python modules mentioned in setup script
+          - all files pointed by package_data (build_py)
+          - all files defined in data_files.
+          - all files defined as scripts.
+          - all C sources listed as part of extensions or C libraries
+            in the setup script (doesn't catch C headers!)
+        Warns if (README or README.txt) or setup.py are missing; everything
+        else is optional.
+        """
+        self._add_defaults_standards()
+        self._add_defaults_optional()
+        self._add_defaults_python()
+        self._add_defaults_data_files()
+        self._add_defaults_ext()
+        self._add_defaults_c_libs()
+        self._add_defaults_scripts()
+
+    @staticmethod
+    def _cs_path_exists(fspath):
+        """
+        Case-sensitive path existence check
+
+        >>> sdist_add_defaults._cs_path_exists(__file__)
+        True
+        >>> sdist_add_defaults._cs_path_exists(__file__.upper())
+        False
+        """
+        if not os.path.exists(fspath):
+            return False
+        # make absolute so we always have a directory
+        abspath = os.path.abspath(fspath)
+        directory, filename = os.path.split(abspath)
+        return filename in os.listdir(directory)
+
+    def _add_defaults_standards(self):
+        standards = [self.READMES, self.distribution.script_name]
+        for fn in standards:
+            if isinstance(fn, tuple):
+                alts = fn
+                got_it = False
+                for fn in alts:
+                    if self._cs_path_exists(fn):
+                        got_it = True
+                        self.filelist.append(fn)
+                        break
+
+                if not got_it:
+                    self.warn("standard file not found: should have one of " +
+                              ', '.join(alts))
+            else:
+                if self._cs_path_exists(fn):
+                    self.filelist.append(fn)
+                else:
+                    self.warn("standard file '%s' not found" % fn)
+
+    def _add_defaults_optional(self):
+        optional = ['test/test*.py', 'setup.cfg']
+        for pattern in optional:
+            files = filter(os.path.isfile, glob(pattern))
+            self.filelist.extend(files)
+
+    def _add_defaults_python(self):
+        # build_py is used to get:
+        #  - python modules
+        #  - files defined in package_data
+        build_py = self.get_finalized_command('build_py')
+
+        # getting python files
+        if self.distribution.has_pure_modules():
+            self.filelist.extend(build_py.get_source_files())
+
+        # getting package_data files
+        # (computed in build_py.data_files by build_py.finalize_options)
+        for pkg, src_dir, build_dir, filenames in build_py.data_files:
+            for filename in filenames:
+                self.filelist.append(os.path.join(src_dir, filename))
+
+    def _add_defaults_data_files(self):
+        # getting distribution.data_files
+        if self.distribution.has_data_files():
+            for item in self.distribution.data_files:
+                if isinstance(item, str):
+                    # plain file
+                    item = convert_path(item)
+                    if os.path.isfile(item):
+                        self.filelist.append(item)
+                else:
+                    # a (dirname, filenames) tuple
+                    dirname, filenames = item
+                    for f in filenames:
+                        f = convert_path(f)
+                        if os.path.isfile(f):
+                            self.filelist.append(f)
+
+    def _add_defaults_ext(self):
+        if self.distribution.has_ext_modules():
+            build_ext = self.get_finalized_command('build_ext')
+            self.filelist.extend(build_ext.get_source_files())
+
+    def _add_defaults_c_libs(self):
+        if self.distribution.has_c_libraries():
+            build_clib = self.get_finalized_command('build_clib')
+            self.filelist.extend(build_clib.get_source_files())
+
+    def _add_defaults_scripts(self):
+        if self.distribution.has_scripts():
+            build_scripts = self.get_finalized_command('build_scripts')
+            self.filelist.extend(build_scripts.get_source_files())
+
+
+if hasattr(sdist.sdist, '_add_defaults_standards'):
+    # disable the functionality already available upstream
+    class sdist_add_defaults:
+        pass
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/register.py b/venv/lib/python3.5/site-packages/setuptools/command/register.py
new file mode 100644
index 0000000..8d6336a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/register.py
@@ -0,0 +1,10 @@
+import distutils.command.register as orig
+
+
+class register(orig.register):
+    __doc__ = orig.register.__doc__
+
+    def run(self):
+        # Make sure that we are using valid current name/version info
+        self.run_command('egg_info')
+        orig.register.run(self)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/rotate.py b/venv/lib/python3.5/site-packages/setuptools/command/rotate.py
new file mode 100644
index 0000000..b89353f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/rotate.py
@@ -0,0 +1,66 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import os
+import shutil
+
+from setuptools.extern import six
+
+from setuptools import Command
+
+
+class rotate(Command):
+    """Delete older distributions"""
+
+    description = "delete older distributions, keeping N newest files"
+    user_options = [
+        ('match=', 'm', "patterns to match (required)"),
+        ('dist-dir=', 'd', "directory where the distributions are"),
+        ('keep=', 'k', "number of matching distributions to keep"),
+    ]
+
+    boolean_options = []
+
+    def initialize_options(self):
+        self.match = None
+        self.dist_dir = None
+        self.keep = None
+
+    def finalize_options(self):
+        if self.match is None:
+            raise DistutilsOptionError(
+                "Must specify one or more (comma-separated) match patterns "
+                "(e.g. '.zip' or '.egg')"
+            )
+        if self.keep is None:
+            raise DistutilsOptionError("Must specify number of files to keep")
+        try:
+            self.keep = int(self.keep)
+        except ValueError:
+            raise DistutilsOptionError("--keep must be an integer")
+        if isinstance(self.match, six.string_types):
+            self.match = [
+                convert_path(p.strip()) for p in self.match.split(',')
+            ]
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
+
+    def run(self):
+        self.run_command("egg_info")
+        from glob import glob
+
+        for pattern in self.match:
+            pattern = self.distribution.get_name() + '*' + pattern
+            files = glob(os.path.join(self.dist_dir, pattern))
+            files = [(os.path.getmtime(f), f) for f in files]
+            files.sort()
+            files.reverse()
+
+            log.info("%d file(s) matching %s", len(files), pattern)
+            files = files[self.keep:]
+            for (t, f) in files:
+                log.info("Deleting %s", f)
+                if not self.dry_run:
+                    if os.path.isdir(f):
+                        shutil.rmtree(f)
+                    else:
+                        os.unlink(f)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/saveopts.py b/venv/lib/python3.5/site-packages/setuptools/command/saveopts.py
new file mode 100644
index 0000000..611cec5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/saveopts.py
@@ -0,0 +1,22 @@
+from setuptools.command.setopt import edit_config, option_base
+
+
+class saveopts(option_base):
+    """Save command-line options to a file"""
+
+    description = "save supplied options to setup.cfg or other config file"
+
+    def run(self):
+        dist = self.distribution
+        settings = {}
+
+        for cmd in dist.command_options:
+
+            if cmd == 'saveopts':
+                continue  # don't save our own options!
+
+            for opt, (src, val) in dist.get_option_dict(cmd).items():
+                if src == "command line":
+                    settings.setdefault(cmd, {})[opt] = val
+
+        edit_config(self.filename, settings, self.dry_run)
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/sdist.py b/venv/lib/python3.5/site-packages/setuptools/command/sdist.py
new file mode 100644
index 0000000..bcfae4d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/sdist.py
@@ -0,0 +1,200 @@
+from distutils import log
+import distutils.command.sdist as orig
+import os
+import sys
+import io
+import contextlib
+
+from setuptools.extern import six
+
+from .py36compat import sdist_add_defaults
+
+import pkg_resources
+
+_default_revctrl = list
+
+
+def walk_revctrl(dirname=''):
+    """Find all files under revision control"""
+    for ep in pkg_resources.iter_entry_points('setuptools.file_finders'):
+        for item in ep.load()(dirname):
+            yield item
+
+
+class sdist(sdist_add_defaults, orig.sdist):
+    """Smart sdist that finds anything supported by revision control"""
+
+    user_options = [
+        ('formats=', None,
+         "formats for source distribution (comma-separated list)"),
+        ('keep-temp', 'k',
+         "keep the distribution tree around after creating " +
+         "archive file(s)"),
+        ('dist-dir=', 'd',
+         "directory to put the source distribution archive(s) in "
+         "[default: dist]"),
+    ]
+
+    negative_opt = {}
+
+    README_EXTENSIONS = ['', '.rst', '.txt', '.md']
+    READMES = tuple('README{0}'.format(ext) for ext in README_EXTENSIONS)
+
+    def run(self):
+        self.run_command('egg_info')
+        ei_cmd = self.get_finalized_command('egg_info')
+        self.filelist = ei_cmd.filelist
+        self.filelist.append(os.path.join(ei_cmd.egg_info, 'SOURCES.txt'))
+        self.check_readme()
+
+        # Run sub commands
+        for cmd_name in self.get_sub_commands():
+            self.run_command(cmd_name)
+
+        self.make_distribution()
+
+        dist_files = getattr(self.distribution, 'dist_files', [])
+        for file in self.archive_files:
+            data = ('sdist', '', file)
+            if data not in dist_files:
+                dist_files.append(data)
+
+    def initialize_options(self):
+        orig.sdist.initialize_options(self)
+
+        self._default_to_gztar()
+
+    def _default_to_gztar(self):
+        # only needed on Python prior to 3.6.
+        if sys.version_info >= (3, 6, 0, 'beta', 1):
+            return
+        self.formats = ['gztar']
+
+    def make_distribution(self):
+        """
+        Workaround for #516
+        """
+        with self._remove_os_link():
+            orig.sdist.make_distribution(self)
+
+    @staticmethod
+    @contextlib.contextmanager
+    def _remove_os_link():
+        """
+        In a context, remove and restore os.link if it exists
+        """
+
+        class NoValue:
+            pass
+
+        orig_val = getattr(os, 'link', NoValue)
+        try:
+            del os.link
+        except Exception:
+            pass
+        try:
+            yield
+        finally:
+            if orig_val is not NoValue:
+                setattr(os, 'link', orig_val)
+
+    def __read_template_hack(self):
+        # This grody hack closes the template file (MANIFEST.in) if an
+        #  exception occurs during read_template.
+        # Doing so prevents an error when easy_install attempts to delete the
+        #  file.
+        try:
+            orig.sdist.read_template(self)
+        except Exception:
+            _, _, tb = sys.exc_info()
+            tb.tb_next.tb_frame.f_locals['template'].close()
+            raise
+
+    # Beginning with Python 2.7.2, 3.1.4, and 3.2.1, this leaky file handle
+    #  has been fixed, so only override the method if we're using an earlier
+    #  Python.
+    has_leaky_handle = (
+        sys.version_info < (2, 7, 2)
+        or (3, 0) <= sys.version_info < (3, 1, 4)
+        or (3, 2) <= sys.version_info < (3, 2, 1)
+    )
+    if has_leaky_handle:
+        read_template = __read_template_hack
+
+    def _add_defaults_python(self):
+        """getting python files"""
+        if self.distribution.has_pure_modules():
+            build_py = self.get_finalized_command('build_py')
+            self.filelist.extend(build_py.get_source_files())
+            # This functionality is incompatible with include_package_data, and
+            # will in fact create an infinite recursion if include_package_data
+            # is True.  Use of include_package_data will imply that
+            # distutils-style automatic handling of package_data is disabled
+            if not self.distribution.include_package_data:
+                for _, src_dir, _, filenames in build_py.data_files:
+                    self.filelist.extend([os.path.join(src_dir, filename)
+                                          for filename in filenames])
+
+    def _add_defaults_data_files(self):
+        try:
+            if six.PY2:
+                sdist_add_defaults._add_defaults_data_files(self)
+            else:
+                super()._add_defaults_data_files()
+        except TypeError:
+            log.warn("data_files contains unexpected objects")
+
+    def check_readme(self):
+        for f in self.READMES:
+            if os.path.exists(f):
+                return
+        else:
+            self.warn(
+                "standard file not found: should have one of " +
+                ', '.join(self.READMES)
+            )
+
+    def make_release_tree(self, base_dir, files):
+        orig.sdist.make_release_tree(self, base_dir, files)
+
+        # Save any egg_info command line options used to create this sdist
+        dest = os.path.join(base_dir, 'setup.cfg')
+        if hasattr(os, 'link') and os.path.exists(dest):
+            # unlink and re-copy, since it might be hard-linked, and
+            # we don't want to change the source version
+            os.unlink(dest)
+            self.copy_file('setup.cfg', dest)
+
+        self.get_finalized_command('egg_info').save_version_info(dest)
+
+    def _manifest_is_not_generated(self):
+        # check for special comment used in 2.7.1 and higher
+        if not os.path.isfile(self.manifest):
+            return False
+
+        with io.open(self.manifest, 'rb') as fp:
+            first_line = fp.readline()
+        return (first_line !=
+                '# file GENERATED by distutils, do NOT edit\n'.encode())
+
+    def read_manifest(self):
+        """Read the manifest file (named by 'self.manifest') and use it to
+        fill in 'self.filelist', the list of files to include in the source
+        distribution.
+        """
+        log.info("reading manifest file '%s'", self.manifest)
+        manifest = open(self.manifest, 'rb')
+        for line in manifest:
+            # The manifest must contain UTF-8. See #303.
+            if six.PY3:
+                try:
+                    line = line.decode('UTF-8')
+                except UnicodeDecodeError:
+                    log.warn("%r not UTF-8 decodable -- skipping" % line)
+                    continue
+            # ignore comments and blank lines
+            line = line.strip()
+            if line.startswith('#') or not line:
+                continue
+            self.filelist.append(line)
+        manifest.close()
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/setopt.py b/venv/lib/python3.5/site-packages/setuptools/command/setopt.py
new file mode 100644
index 0000000..7e57cc0
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/setopt.py
@@ -0,0 +1,149 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import distutils
+import os
+
+from setuptools.extern.six.moves import configparser
+
+from setuptools import Command
+
+__all__ = ['config_file', 'edit_config', 'option_base', 'setopt']
+
+
+def config_file(kind="local"):
+    """Get the filename of the distutils, local, global, or per-user config
+
+    `kind` must be one of "local", "global", or "user"
+    """
+    if kind == 'local':
+        return 'setup.cfg'
+    if kind == 'global':
+        return os.path.join(
+            os.path.dirname(distutils.__file__), 'distutils.cfg'
+        )
+    if kind == 'user':
+        dot = os.name == 'posix' and '.' or ''
+        return os.path.expanduser(convert_path("~/%spydistutils.cfg" % dot))
+    raise ValueError(
+        "config_file() type must be 'local', 'global', or 'user'", kind
+    )
+
+
+def edit_config(filename, settings, dry_run=False):
+    """Edit a configuration file to include `settings`
+
+    `settings` is a dictionary of dictionaries or ``None`` values, keyed by
+    command/section name.  A ``None`` value means to delete the entire section,
+    while a dictionary lists settings to be changed or deleted in that section.
+    A setting of ``None`` means to delete that setting.
+    """
+    log.debug("Reading configuration from %s", filename)
+    opts = configparser.RawConfigParser()
+    opts.read([filename])
+    for section, options in settings.items():
+        if options is None:
+            log.info("Deleting section [%s] from %s", section, filename)
+            opts.remove_section(section)
+        else:
+            if not opts.has_section(section):
+                log.debug("Adding new section [%s] to %s", section, filename)
+                opts.add_section(section)
+            for option, value in options.items():
+                if value is None:
+                    log.debug(
+                        "Deleting %s.%s from %s",
+                        section, option, filename
+                    )
+                    opts.remove_option(section, option)
+                    if not opts.options(section):
+                        log.info("Deleting empty [%s] section from %s",
+                                 section, filename)
+                        opts.remove_section(section)
+                else:
+                    log.debug(
+                        "Setting %s.%s to %r in %s",
+                        section, option, value, filename
+                    )
+                    opts.set(section, option, value)
+
+    log.info("Writing %s", filename)
+    if not dry_run:
+        with open(filename, 'w') as f:
+            opts.write(f)
+
+
+class option_base(Command):
+    """Abstract base class for commands that mess with config files"""
+
+    user_options = [
+        ('global-config', 'g',
+         "save options to the site-wide distutils.cfg file"),
+        ('user-config', 'u',
+         "save options to the current user's pydistutils.cfg file"),
+        ('filename=', 'f',
+         "configuration file to use (default=setup.cfg)"),
+    ]
+
+    boolean_options = [
+        'global-config', 'user-config',
+    ]
+
+    def initialize_options(self):
+        self.global_config = None
+        self.user_config = None
+        self.filename = None
+
+    def finalize_options(self):
+        filenames = []
+        if self.global_config:
+            filenames.append(config_file('global'))
+        if self.user_config:
+            filenames.append(config_file('user'))
+        if self.filename is not None:
+            filenames.append(self.filename)
+        if not filenames:
+            filenames.append(config_file('local'))
+        if len(filenames) > 1:
+            raise DistutilsOptionError(
+                "Must specify only one configuration file option",
+                filenames
+            )
+        self.filename, = filenames
+
+
+class setopt(option_base):
+    """Save command-line options to a file"""
+
+    description = "set an option in setup.cfg or another config file"
+
+    user_options = [
+        ('command=', 'c', 'command to set an option for'),
+        ('option=', 'o', 'option to set'),
+        ('set-value=', 's', 'value of the option'),
+        ('remove', 'r', 'remove (unset) the value'),
+    ] + option_base.user_options
+
+    boolean_options = option_base.boolean_options + ['remove']
+
+    def initialize_options(self):
+        option_base.initialize_options(self)
+        self.command = None
+        self.option = None
+        self.set_value = None
+        self.remove = None
+
+    def finalize_options(self):
+        option_base.finalize_options(self)
+        if self.command is None or self.option is None:
+            raise DistutilsOptionError("Must specify --command *and* --option")
+        if self.set_value is None and not self.remove:
+            raise DistutilsOptionError("Must specify --set-value or --remove")
+
+    def run(self):
+        edit_config(
+            self.filename, {
+                self.command: {self.option.replace('-', '_'): self.set_value}
+            },
+            self.dry_run
+        )
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/test.py b/venv/lib/python3.5/site-packages/setuptools/command/test.py
new file mode 100644
index 0000000..51aee1f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/test.py
@@ -0,0 +1,268 @@
+import os
+import operator
+import sys
+import contextlib
+import itertools
+import unittest
+from distutils.errors import DistutilsError, DistutilsOptionError
+from distutils import log
+from unittest import TestLoader
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter
+
+from pkg_resources import (resource_listdir, resource_exists, normalize_path,
+                           working_set, _namespace_packages, evaluate_marker,
+                           add_activation_listener, require, EntryPoint)
+from setuptools import Command
+
+
+class ScanningLoader(TestLoader):
+
+    def __init__(self):
+        TestLoader.__init__(self)
+        self._visited = set()
+
+    def loadTestsFromModule(self, module, pattern=None):
+        """Return a suite of all tests cases contained in the given module
+
+        If the module is a package, load tests from all the modules in it.
+        If the module has an ``additional_tests`` function, call it and add
+        the return value to the tests.
+        """
+        if module in self._visited:
+            return None
+        self._visited.add(module)
+
+        tests = []
+        tests.append(TestLoader.loadTestsFromModule(self, module))
+
+        if hasattr(module, "additional_tests"):
+            tests.append(module.additional_tests())
+
+        if hasattr(module, '__path__'):
+            for file in resource_listdir(module.__name__, ''):
+                if file.endswith('.py') and file != '__init__.py':
+                    submodule = module.__name__ + '.' + file[:-3]
+                else:
+                    if resource_exists(module.__name__, file + '/__init__.py'):
+                        submodule = module.__name__ + '.' + file
+                    else:
+                        continue
+                tests.append(self.loadTestsFromName(submodule))
+
+        if len(tests) != 1:
+            return self.suiteClass(tests)
+        else:
+            return tests[0]  # don't create a nested suite for only one return
+
+
+# adapted from jaraco.classes.properties:NonDataProperty
+class NonDataProperty(object):
+    def __init__(self, fget):
+        self.fget = fget
+
+    def __get__(self, obj, objtype=None):
+        if obj is None:
+            return self
+        return self.fget(obj)
+
+
+class test(Command):
+    """Command to run unit tests after in-place build"""
+
+    description = "run unit tests after in-place build"
+
+    user_options = [
+        ('test-module=', 'm', "Run 'test_suite' in specified module"),
+        ('test-suite=', 's',
+         "Run single test, case or suite (e.g. 'module.test_suite')"),
+        ('test-runner=', 'r', "Test runner to use"),
+    ]
+
+    def initialize_options(self):
+        self.test_suite = None
+        self.test_module = None
+        self.test_loader = None
+        self.test_runner = None
+
+    def finalize_options(self):
+
+        if self.test_suite and self.test_module:
+            msg = "You may specify a module or a suite, but not both"
+            raise DistutilsOptionError(msg)
+
+        if self.test_suite is None:
+            if self.test_module is None:
+                self.test_suite = self.distribution.test_suite
+            else:
+                self.test_suite = self.test_module + ".test_suite"
+
+        if self.test_loader is None:
+            self.test_loader = getattr(self.distribution, 'test_loader', None)
+        if self.test_loader is None:
+            self.test_loader = "setuptools.command.test:ScanningLoader"
+        if self.test_runner is None:
+            self.test_runner = getattr(self.distribution, 'test_runner', None)
+
+    @NonDataProperty
+    def test_args(self):
+        return list(self._test_args())
+
+    def _test_args(self):
+        if not self.test_suite and sys.version_info >= (2, 7):
+            yield 'discover'
+        if self.verbose:
+            yield '--verbose'
+        if self.test_suite:
+            yield self.test_suite
+
+    def with_project_on_sys_path(self, func):
+        """
+        Backward compatibility for project_on_sys_path context.
+        """
+        with self.project_on_sys_path():
+            func()
+
+    @contextlib.contextmanager
+    def project_on_sys_path(self, include_dists=[]):
+        with_2to3 = six.PY3 and getattr(self.distribution, 'use_2to3', False)
+
+        if with_2to3:
+            # If we run 2to3 we can not do this inplace:
+
+            # Ensure metadata is up-to-date
+            self.reinitialize_command('build_py', inplace=0)
+            self.run_command('build_py')
+            bpy_cmd = self.get_finalized_command("build_py")
+            build_path = normalize_path(bpy_cmd.build_lib)
+
+            # Build extensions
+            self.reinitialize_command('egg_info', egg_base=build_path)
+            self.run_command('egg_info')
+
+            self.reinitialize_command('build_ext', inplace=0)
+            self.run_command('build_ext')
+        else:
+            # Without 2to3 inplace works fine:
+            self.run_command('egg_info')
+
+            # Build extensions in-place
+            self.reinitialize_command('build_ext', inplace=1)
+            self.run_command('build_ext')
+
+        ei_cmd = self.get_finalized_command("egg_info")
+
+        old_path = sys.path[:]
+        old_modules = sys.modules.copy()
+
+        try:
+            project_path = normalize_path(ei_cmd.egg_base)
+            sys.path.insert(0, project_path)
+            working_set.__init__()
+            add_activation_listener(lambda dist: dist.activate())
+            require('%s==%s' % (ei_cmd.egg_name, ei_cmd.egg_version))
+            with self.paths_on_pythonpath([project_path]):
+                yield
+        finally:
+            sys.path[:] = old_path
+            sys.modules.clear()
+            sys.modules.update(old_modules)
+            working_set.__init__()
+
+    @staticmethod
+    @contextlib.contextmanager
+    def paths_on_pythonpath(paths):
+        """
+        Add the indicated paths to the head of the PYTHONPATH environment
+        variable so that subprocesses will also see the packages at
+        these paths.
+
+        Do this in a context that restores the value on exit.
+        """
+        nothing = object()
+        orig_pythonpath = os.environ.get('PYTHONPATH', nothing)
+        current_pythonpath = os.environ.get('PYTHONPATH', '')
+        try:
+            prefix = os.pathsep.join(paths)
+            to_join = filter(None, [prefix, current_pythonpath])
+            new_path = os.pathsep.join(to_join)
+            if new_path:
+                os.environ['PYTHONPATH'] = new_path
+            yield
+        finally:
+            if orig_pythonpath is nothing:
+                os.environ.pop('PYTHONPATH', None)
+            else:
+                os.environ['PYTHONPATH'] = orig_pythonpath
+
+    @staticmethod
+    def install_dists(dist):
+        """
+        Install the requirements indicated by self.distribution and
+        return an iterable of the dists that were built.
+        """
+        ir_d = dist.fetch_build_eggs(dist.install_requires)
+        tr_d = dist.fetch_build_eggs(dist.tests_require or [])
+        er_d = dist.fetch_build_eggs(
+            v for k, v in dist.extras_require.items()
+            if k.startswith(':') and evaluate_marker(k[1:])
+        )
+        return itertools.chain(ir_d, tr_d, er_d)
+
+    def run(self):
+        installed_dists = self.install_dists(self.distribution)
+
+        cmd = ' '.join(self._argv)
+        if self.dry_run:
+            self.announce('skipping "%s" (dry run)' % cmd)
+            return
+
+        self.announce('running "%s"' % cmd)
+
+        paths = map(operator.attrgetter('location'), installed_dists)
+        with self.paths_on_pythonpath(paths):
+            with self.project_on_sys_path():
+                self.run_tests()
+
+    def run_tests(self):
+        # Purge modules under test from sys.modules. The test loader will
+        # re-import them from the build location. Required when 2to3 is used
+        # with namespace packages.
+        if six.PY3 and getattr(self.distribution, 'use_2to3', False):
+            module = self.test_suite.split('.')[0]
+            if module in _namespace_packages:
+                del_modules = []
+                if module in sys.modules:
+                    del_modules.append(module)
+                module += '.'
+                for name in sys.modules:
+                    if name.startswith(module):
+                        del_modules.append(name)
+                list(map(sys.modules.__delitem__, del_modules))
+
+        test = unittest.main(
+            None, None, self._argv,
+            testLoader=self._resolve_as_ep(self.test_loader),
+            testRunner=self._resolve_as_ep(self.test_runner),
+            exit=False,
+        )
+        if not test.result.wasSuccessful():
+            msg = 'Test failed: %s' % test.result
+            self.announce(msg, log.ERROR)
+            raise DistutilsError(msg)
+
+    @property
+    def _argv(self):
+        return ['unittest'] + self.test_args
+
+    @staticmethod
+    def _resolve_as_ep(val):
+        """
+        Load the indicated attribute value, called, as a as if it were
+        specified as an entry point.
+        """
+        if val is None:
+            return
+        parsed = EntryPoint.parse("x=" + val)
+        return parsed.resolve()()
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/upload.py b/venv/lib/python3.5/site-packages/setuptools/command/upload.py
new file mode 100644
index 0000000..a44173a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/upload.py
@@ -0,0 +1,42 @@
+import getpass
+from distutils.command import upload as orig
+
+
+class upload(orig.upload):
+    """
+    Override default upload behavior to obtain password
+    in a variety of different ways.
+    """
+
+    def finalize_options(self):
+        orig.upload.finalize_options(self)
+        self.username = (
+            self.username or
+            getpass.getuser()
+        )
+        # Attempt to obtain password. Short circuit evaluation at the first
+        # sign of success.
+        self.password = (
+            self.password or
+            self._load_password_from_keyring() or
+            self._prompt_for_password()
+        )
+
+    def _load_password_from_keyring(self):
+        """
+        Attempt to load password from keyring. Suppress Exceptions.
+        """
+        try:
+            keyring = __import__('keyring')
+            return keyring.get_password(self.repository, self.username)
+        except Exception:
+            pass
+
+    def _prompt_for_password(self):
+        """
+        Prompt for a password on the tty. Suppress Exceptions.
+        """
+        try:
+            return getpass.getpass()
+        except (Exception, KeyboardInterrupt):
+            pass
diff --git a/venv/lib/python3.5/site-packages/setuptools/command/upload_docs.py b/venv/lib/python3.5/site-packages/setuptools/command/upload_docs.py
new file mode 100644
index 0000000..07aa564
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/command/upload_docs.py
@@ -0,0 +1,206 @@
+# -*- coding: utf-8 -*-
+"""upload_docs
+
+Implements a Distutils 'upload_docs' subcommand (upload documentation to
+PyPI's pythonhosted.org).
+"""
+
+from base64 import standard_b64encode
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import os
+import socket
+import zipfile
+import tempfile
+import shutil
+import itertools
+import functools
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import http_client, urllib
+
+from pkg_resources import iter_entry_points
+from .upload import upload
+
+
+def _encode(s):
+    errors = 'surrogateescape' if six.PY3 else 'strict'
+    return s.encode('utf-8', errors)
+
+
+class upload_docs(upload):
+    # override the default repository as upload_docs isn't
+    # supported by Warehouse (and won't be).
+    DEFAULT_REPOSITORY = 'https://pypi.python.org/pypi/'
+
+    description = 'Upload documentation to PyPI'
+
+    user_options = [
+        ('repository=', 'r',
+         "url of repository [default: %s]" % upload.DEFAULT_REPOSITORY),
+        ('show-response', None,
+         'display full response text from server'),
+        ('upload-dir=', None, 'directory to upload'),
+    ]
+    boolean_options = upload.boolean_options
+
+    def has_sphinx(self):
+        if self.upload_dir is None:
+            for ep in iter_entry_points('distutils.commands', 'build_sphinx'):
+                return True
+
+    sub_commands = [('build_sphinx', has_sphinx)]
+
+    def initialize_options(self):
+        upload.initialize_options(self)
+        self.upload_dir = None
+        self.target_dir = None
+
+    def finalize_options(self):
+        upload.finalize_options(self)
+        if self.upload_dir is None:
+            if self.has_sphinx():
+                build_sphinx = self.get_finalized_command('build_sphinx')
+                self.target_dir = build_sphinx.builder_target_dir
+            else:
+                build = self.get_finalized_command('build')
+                self.target_dir = os.path.join(build.build_base, 'docs')
+        else:
+            self.ensure_dirname('upload_dir')
+            self.target_dir = self.upload_dir
+        if 'pypi.python.org' in self.repository:
+            log.warn("Upload_docs command is deprecated. Use RTD instead.")
+        self.announce('Using upload directory %s' % self.target_dir)
+
+    def create_zipfile(self, filename):
+        zip_file = zipfile.ZipFile(filename, "w")
+        try:
+            self.mkpath(self.target_dir)  # just in case
+            for root, dirs, files in os.walk(self.target_dir):
+                if root == self.target_dir and not files:
+                    tmpl = "no files found in upload directory '%s'"
+                    raise DistutilsOptionError(tmpl % self.target_dir)
+                for name in files:
+                    full = os.path.join(root, name)
+                    relative = root[len(self.target_dir):].lstrip(os.path.sep)
+                    dest = os.path.join(relative, name)
+                    zip_file.write(full, dest)
+        finally:
+            zip_file.close()
+
+    def run(self):
+        # Run sub commands
+        for cmd_name in self.get_sub_commands():
+            self.run_command(cmd_name)
+
+        tmp_dir = tempfile.mkdtemp()
+        name = self.distribution.metadata.get_name()
+        zip_file = os.path.join(tmp_dir, "%s.zip" % name)
+        try:
+            self.create_zipfile(zip_file)
+            self.upload_file(zip_file)
+        finally:
+            shutil.rmtree(tmp_dir)
+
+    @staticmethod
+    def _build_part(item, sep_boundary):
+        key, values = item
+        title = '\nContent-Disposition: form-data; name="%s"' % key
+        # handle multiple entries for the same name
+        if not isinstance(values, list):
+            values = [values]
+        for value in values:
+            if isinstance(value, tuple):
+                title += '; filename="%s"' % value[0]
+                value = value[1]
+            else:
+                value = _encode(value)
+            yield sep_boundary
+            yield _encode(title)
+            yield b"\n\n"
+            yield value
+            if value and value[-1:] == b'\r':
+                yield b'\n'  # write an extra newline (lurve Macs)
+
+    @classmethod
+    def _build_multipart(cls, data):
+        """
+        Build up the MIME payload for the POST data
+        """
+        boundary = b'--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
+        sep_boundary = b'\n--' + boundary
+        end_boundary = sep_boundary + b'--'
+        end_items = end_boundary, b"\n",
+        builder = functools.partial(
+            cls._build_part,
+            sep_boundary=sep_boundary,
+        )
+        part_groups = map(builder, data.items())
+        parts = itertools.chain.from_iterable(part_groups)
+        body_items = itertools.chain(parts, end_items)
+        content_type = 'multipart/form-data; boundary=%s' % boundary.decode('ascii')
+        return b''.join(body_items), content_type
+
+    def upload_file(self, filename):
+        with open(filename, 'rb') as f:
+            content = f.read()
+        meta = self.distribution.metadata
+        data = {
+            ':action': 'doc_upload',
+            'name': meta.get_name(),
+            'content': (os.path.basename(filename), content),
+        }
+        # set up the authentication
+        credentials = _encode(self.username + ':' + self.password)
+        credentials = standard_b64encode(credentials)
+        if six.PY3:
+            credentials = credentials.decode('ascii')
+        auth = "Basic " + credentials
+
+        body, ct = self._build_multipart(data)
+
+        msg = "Submitting documentation to %s" % (self.repository)
+        self.announce(msg, log.INFO)
+
+        # build the Request
+        # We can't use urllib2 since we need to send the Basic
+        # auth right with the first request
+        schema, netloc, url, params, query, fragments = \
+            urllib.parse.urlparse(self.repository)
+        assert not params and not query and not fragments
+        if schema == 'http':
+            conn = http_client.HTTPConnection(netloc)
+        elif schema == 'https':
+            conn = http_client.HTTPSConnection(netloc)
+        else:
+            raise AssertionError("unsupported schema " + schema)
+
+        data = ''
+        try:
+            conn.connect()
+            conn.putrequest("POST", url)
+            content_type = ct
+            conn.putheader('Content-type', content_type)
+            conn.putheader('Content-length', str(len(body)))
+            conn.putheader('Authorization', auth)
+            conn.endheaders()
+            conn.send(body)
+        except socket.error as e:
+            self.announce(str(e), log.ERROR)
+            return
+
+        r = conn.getresponse()
+        if r.status == 200:
+            msg = 'Server response (%s): %s' % (r.status, r.reason)
+            self.announce(msg, log.INFO)
+        elif r.status == 301:
+            location = r.getheader('Location')
+            if location is None:
+                location = 'https://pythonhosted.org/%s/' % meta.get_name()
+            msg = 'Upload successful. Visit %s' % location
+            self.announce(msg, log.INFO)
+        else:
+            msg = 'Upload failed (%s): %s' % (r.status, r.reason)
+            self.announce(msg, log.ERROR)
+        if self.show_response:
+            print('-' * 75, r.read(), '-' * 75)
diff --git a/venv/lib/python3.5/site-packages/setuptools/config.py b/venv/lib/python3.5/site-packages/setuptools/config.py
new file mode 100644
index 0000000..5382844
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/config.py
@@ -0,0 +1,554 @@
+from __future__ import absolute_import, unicode_literals
+import io
+import os
+import sys
+from collections import defaultdict
+from functools import partial
+from importlib import import_module
+
+from distutils.errors import DistutilsOptionError, DistutilsFileError
+from setuptools.extern.six import string_types
+
+
+def read_configuration(
+        filepath, find_others=False, ignore_option_errors=False):
+    """Read given configuration file and returns options from it as a dict.
+
+    :param str|unicode filepath: Path to configuration file
+        to get options from.
+
+    :param bool find_others: Whether to search for other configuration files
+        which could be on in various places.
+
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+
+    :rtype: dict
+    """
+    from setuptools.dist import Distribution, _Distribution
+
+    filepath = os.path.abspath(filepath)
+
+    if not os.path.isfile(filepath):
+        raise DistutilsFileError(
+            'Configuration file %s does not exist.' % filepath)
+
+    current_directory = os.getcwd()
+    os.chdir(os.path.dirname(filepath))
+
+    try:
+        dist = Distribution()
+
+        filenames = dist.find_config_files() if find_others else []
+        if filepath not in filenames:
+            filenames.append(filepath)
+
+        _Distribution.parse_config_files(dist, filenames=filenames)
+
+        handlers = parse_configuration(
+            dist, dist.command_options,
+            ignore_option_errors=ignore_option_errors)
+
+    finally:
+        os.chdir(current_directory)
+
+    return configuration_to_dict(handlers)
+
+
+def configuration_to_dict(handlers):
+    """Returns configuration data gathered by given handlers as a dict.
+
+    :param list[ConfigHandler] handlers: Handlers list,
+        usually from parse_configuration()
+
+    :rtype: dict
+    """
+    config_dict = defaultdict(dict)
+
+    for handler in handlers:
+
+        obj_alias = handler.section_prefix
+        target_obj = handler.target_obj
+
+        for option in handler.set_options:
+            getter = getattr(target_obj, 'get_%s' % option, None)
+
+            if getter is None:
+                value = getattr(target_obj, option)
+
+            else:
+                value = getter()
+
+            config_dict[obj_alias][option] = value
+
+    return config_dict
+
+
+def parse_configuration(
+        distribution, command_options, ignore_option_errors=False):
+    """Performs additional parsing of configuration options
+    for a distribution.
+
+    Returns a list of used option handlers.
+
+    :param Distribution distribution:
+    :param dict command_options:
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+    :rtype: list
+    """
+    meta = ConfigMetadataHandler(
+        distribution.metadata, command_options, ignore_option_errors)
+    meta.parse()
+
+    options = ConfigOptionsHandler(
+        distribution, command_options, ignore_option_errors)
+    options.parse()
+
+    return [meta, options]
+
+
+class ConfigHandler(object):
+    """Handles metadata supplied in configuration files."""
+
+    section_prefix = None
+    """Prefix for config sections handled by this handler.
+    Must be provided by class heirs.
+
+    """
+
+    aliases = {}
+    """Options aliases.
+    For compatibility with various packages. E.g.: d2to1 and pbr.
+    Note: `-` in keys is replaced with `_` by config parser.
+
+    """
+
+    def __init__(self, target_obj, options, ignore_option_errors=False):
+        sections = {}
+
+        section_prefix = self.section_prefix
+        for section_name, section_options in options.items():
+            if not section_name.startswith(section_prefix):
+                continue
+
+            section_name = section_name.replace(section_prefix, '').strip('.')
+            sections[section_name] = section_options
+
+        self.ignore_option_errors = ignore_option_errors
+        self.target_obj = target_obj
+        self.sections = sections
+        self.set_options = []
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        raise NotImplementedError(
+            '%s must provide .parsers property' % self.__class__.__name__)
+
+    def __setitem__(self, option_name, value):
+        unknown = tuple()
+        target_obj = self.target_obj
+
+        # Translate alias into real name.
+        option_name = self.aliases.get(option_name, option_name)
+
+        current_value = getattr(target_obj, option_name, unknown)
+
+        if current_value is unknown:
+            raise KeyError(option_name)
+
+        if current_value:
+            # Already inhabited. Skipping.
+            return
+
+        skip_option = False
+        parser = self.parsers.get(option_name)
+        if parser:
+            try:
+                value = parser(value)
+
+            except Exception:
+                skip_option = True
+                if not self.ignore_option_errors:
+                    raise
+
+        if skip_option:
+            return
+
+        setter = getattr(target_obj, 'set_%s' % option_name, None)
+        if setter is None:
+            setattr(target_obj, option_name, value)
+        else:
+            setter(value)
+
+        self.set_options.append(option_name)
+
+    @classmethod
+    def _parse_list(cls, value, separator=','):
+        """Represents value as a list.
+
+        Value is split either by separator (defaults to comma) or by lines.
+
+        :param value:
+        :param separator: List items separator character.
+        :rtype: list
+        """
+        if isinstance(value, list):  # _get_parser_compound case
+            return value
+
+        if '\n' in value:
+            value = value.splitlines()
+        else:
+            value = value.split(separator)
+
+        return [chunk.strip() for chunk in value if chunk.strip()]
+
+    @classmethod
+    def _parse_dict(cls, value):
+        """Represents value as a dict.
+
+        :param value:
+        :rtype: dict
+        """
+        separator = '='
+        result = {}
+        for line in cls._parse_list(value):
+            key, sep, val = line.partition(separator)
+            if sep != separator:
+                raise DistutilsOptionError(
+                    'Unable to parse option value to dict: %s' % value)
+            result[key.strip()] = val.strip()
+
+        return result
+
+    @classmethod
+    def _parse_bool(cls, value):
+        """Represents value as boolean.
+
+        :param value:
+        :rtype: bool
+        """
+        value = value.lower()
+        return value in ('1', 'true', 'yes')
+
+    @classmethod
+    def _parse_file(cls, value):
+        """Represents value as a string, allowing including text
+        from nearest files using `file:` directive.
+
+        Directive is sandboxed and won't reach anything outside
+        directory with setup.py.
+
+        Examples:
+            file: LICENSE
+            file: README.rst, CHANGELOG.md, src/file.txt
+
+        :param str value:
+        :rtype: str
+        """
+        include_directive = 'file:'
+
+        if not isinstance(value, string_types):
+            return value
+
+        if not value.startswith(include_directive):
+            return value
+
+        spec = value[len(include_directive):]
+        filepaths = (os.path.abspath(path.strip()) for path in spec.split(','))
+        return '\n'.join(
+            cls._read_file(path)
+            for path in filepaths
+            if (cls._assert_local(path) or True)
+            and os.path.isfile(path)
+        )
+
+    @staticmethod
+    def _assert_local(filepath):
+        if not filepath.startswith(os.getcwd()):
+            raise DistutilsOptionError(
+                '`file:` directive can not access %s' % filepath)
+
+    @staticmethod
+    def _read_file(filepath):
+        with io.open(filepath, encoding='utf-8') as f:
+            return f.read()
+
+    @classmethod
+    def _parse_attr(cls, value):
+        """Represents value as a module attribute.
+
+        Examples:
+            attr: package.attr
+            attr: package.module.attr
+
+        :param str value:
+        :rtype: str
+        """
+        attr_directive = 'attr:'
+        if not value.startswith(attr_directive):
+            return value
+
+        attrs_path = value.replace(attr_directive, '').strip().split('.')
+        attr_name = attrs_path.pop()
+
+        module_name = '.'.join(attrs_path)
+        module_name = module_name or '__init__'
+
+        sys.path.insert(0, os.getcwd())
+        try:
+            module = import_module(module_name)
+            value = getattr(module, attr_name)
+
+        finally:
+            sys.path = sys.path[1:]
+
+        return value
+
+    @classmethod
+    def _get_parser_compound(cls, *parse_methods):
+        """Returns parser function to represents value as a list.
+
+        Parses a value applying given methods one after another.
+
+        :param parse_methods:
+        :rtype: callable
+        """
+        def parse(value):
+            parsed = value
+
+            for method in parse_methods:
+                parsed = method(parsed)
+
+            return parsed
+
+        return parse
+
+    @classmethod
+    def _parse_section_to_dict(cls, section_options, values_parser=None):
+        """Parses section options into a dictionary.
+
+        Optionally applies a given parser to values.
+
+        :param dict section_options:
+        :param callable values_parser:
+        :rtype: dict
+        """
+        value = {}
+        values_parser = values_parser or (lambda val: val)
+        for key, (_, val) in section_options.items():
+            value[key] = values_parser(val)
+        return value
+
+    def parse_section(self, section_options):
+        """Parses configuration file section.
+
+        :param dict section_options:
+        """
+        for (name, (_, value)) in section_options.items():
+            try:
+                self[name] = value
+
+            except KeyError:
+                pass  # Keep silent for a new option may appear anytime.
+
+    def parse(self):
+        """Parses configuration file items from one
+        or more related sections.
+
+        """
+        for section_name, section_options in self.sections.items():
+
+            method_postfix = ''
+            if section_name:  # [section.option] variant
+                method_postfix = '_%s' % section_name
+
+            section_parser_method = getattr(
+                self,
+                # Dots in section names are tranlsated into dunderscores.
+                ('parse_section%s' % method_postfix).replace('.', '__'),
+                None)
+
+            if section_parser_method is None:
+                raise DistutilsOptionError(
+                    'Unsupported distribution option section: [%s.%s]' % (
+                        self.section_prefix, section_name))
+
+            section_parser_method(section_options)
+
+
+class ConfigMetadataHandler(ConfigHandler):
+
+    section_prefix = 'metadata'
+
+    aliases = {
+        'home_page': 'url',
+        'summary': 'description',
+        'classifier': 'classifiers',
+        'platform': 'platforms',
+    }
+
+    strict_mode = False
+    """We need to keep it loose, to be partially compatible with
+    `pbr` and `d2to1` packages which also uses `metadata` section.
+
+    """
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list = self._parse_list
+        parse_file = self._parse_file
+
+        return {
+            'platforms': parse_list,
+            'keywords': parse_list,
+            'provides': parse_list,
+            'requires': parse_list,
+            'obsoletes': parse_list,
+            'classifiers': self._get_parser_compound(parse_file, parse_list),
+            'license': parse_file,
+            'description': parse_file,
+            'long_description': parse_file,
+            'version': self._parse_version,
+        }
+
+    def _parse_version(self, value):
+        """Parses `version` option value.
+
+        :param value:
+        :rtype: str
+
+        """
+        version = self._parse_attr(value)
+
+        if callable(version):
+            version = version()
+
+        if not isinstance(version, string_types):
+            if hasattr(version, '__iter__'):
+                version = '.'.join(map(str, version))
+            else:
+                version = '%s' % version
+
+        return version
+
+
+class ConfigOptionsHandler(ConfigHandler):
+
+    section_prefix = 'options'
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list = self._parse_list
+        parse_list_semicolon = partial(self._parse_list, separator=';')
+        parse_bool = self._parse_bool
+        parse_dict = self._parse_dict
+
+        return {
+            'zip_safe': parse_bool,
+            'use_2to3': parse_bool,
+            'include_package_data': parse_bool,
+            'package_dir': parse_dict,
+            'use_2to3_fixers': parse_list,
+            'use_2to3_exclude_fixers': parse_list,
+            'convert_2to3_doctests': parse_list,
+            'scripts': parse_list,
+            'eager_resources': parse_list,
+            'dependency_links': parse_list,
+            'namespace_packages': parse_list,
+            'install_requires': parse_list_semicolon,
+            'setup_requires': parse_list_semicolon,
+            'tests_require': parse_list_semicolon,
+            'packages': self._parse_packages,
+            'entry_points': self._parse_file,
+            'py_modules': parse_list,
+        }
+
+    def _parse_packages(self, value):
+        """Parses `packages` option value.
+
+        :param value:
+        :rtype: list
+        """
+        find_directive = 'find:'
+
+        if not value.startswith(find_directive):
+            return self._parse_list(value)
+
+        # Read function arguments from a dedicated section.
+        find_kwargs = self.parse_section_packages__find(
+            self.sections.get('packages.find', {}))
+
+        from setuptools import find_packages
+
+        return find_packages(**find_kwargs)
+
+    def parse_section_packages__find(self, section_options):
+        """Parses `packages.find` configuration file section.
+
+        To be used in conjunction with _parse_packages().
+
+        :param dict section_options:
+        """
+        section_data = self._parse_section_to_dict(
+            section_options, self._parse_list)
+
+        valid_keys = ['where', 'include', 'exclude']
+
+        find_kwargs = dict(
+            [(k, v) for k, v in section_data.items() if k in valid_keys and v])
+
+        where = find_kwargs.get('where')
+        if where is not None:
+            find_kwargs['where'] = where[0]  # cast list to single val
+
+        return find_kwargs
+
+    def parse_section_entry_points(self, section_options):
+        """Parses `entry_points` configuration file section.
+
+        :param dict section_options:
+        """
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+        self['entry_points'] = parsed
+
+    def _parse_package_data(self, section_options):
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+
+        root = parsed.get('*')
+        if root:
+            parsed[''] = root
+            del parsed['*']
+
+        return parsed
+
+    def parse_section_package_data(self, section_options):
+        """Parses `package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['package_data'] = self._parse_package_data(section_options)
+
+    def parse_section_exclude_package_data(self, section_options):
+        """Parses `exclude_package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['exclude_package_data'] = self._parse_package_data(
+            section_options)
+
+    def parse_section_extras_require(self, section_options):
+        """Parses `extras_require` configuration file section.
+
+        :param dict section_options:
+        """
+        parse_list = partial(self._parse_list, separator=';')
+        self['extras_require'] = self._parse_section_to_dict(
+            section_options, parse_list)
diff --git a/venv/lib/python3.5/site-packages/setuptools/dep_util.py b/venv/lib/python3.5/site-packages/setuptools/dep_util.py
new file mode 100644
index 0000000..2931c13
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/dep_util.py
@@ -0,0 +1,23 @@
+from distutils.dep_util import newer_group
+
+# yes, this is was almost entirely copy-pasted from
+# 'newer_pairwise()', this is just another convenience
+# function.
+def newer_pairwise_group(sources_groups, targets):
+    """Walk both arguments in parallel, testing if each source group is newer
+    than its corresponding target. Returns a pair of lists (sources_groups,
+    targets) where sources is newer than target, according to the semantics
+    of 'newer_group()'.
+    """
+    if len(sources_groups) != len(targets):
+        raise ValueError("'sources_group' and 'targets' must be the same length")
+
+    # build a pair of lists (sources_groups, targets) where source is newer
+    n_sources = []
+    n_targets = []
+    for i in range(len(sources_groups)):
+        if newer_group(sources_groups[i], targets[i]):
+            n_sources.append(sources_groups[i])
+            n_targets.append(targets[i])
+
+    return n_sources, n_targets
diff --git a/venv/lib/python3.5/site-packages/setuptools/depends.py b/venv/lib/python3.5/site-packages/setuptools/depends.py
new file mode 100644
index 0000000..45e7052
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/depends.py
@@ -0,0 +1,186 @@
+import sys
+import imp
+import marshal
+from distutils.version import StrictVersion
+from imp import PKG_DIRECTORY, PY_COMPILED, PY_SOURCE, PY_FROZEN
+
+from .py33compat import Bytecode
+
+
+__all__ = [
+    'Require', 'find_module', 'get_module_constant', 'extract_constant'
+]
+
+
+class Require:
+    """A prerequisite to building or installing a distribution"""
+
+    def __init__(self, name, requested_version, module, homepage='',
+            attribute=None, format=None):
+
+        if format is None and requested_version is not None:
+            format = StrictVersion
+
+        if format is not None:
+            requested_version = format(requested_version)
+            if attribute is None:
+                attribute = '__version__'
+
+        self.__dict__.update(locals())
+        del self.self
+
+    def full_name(self):
+        """Return full package/distribution name, w/version"""
+        if self.requested_version is not None:
+            return '%s-%s' % (self.name, self.requested_version)
+        return self.name
+
+    def version_ok(self, version):
+        """Is 'version' sufficiently up-to-date?"""
+        return self.attribute is None or self.format is None or \
+            str(version) != "unknown" and version >= self.requested_version
+
+    def get_version(self, paths=None, default="unknown"):
+        """Get version number of installed module, 'None', or 'default'
+
+        Search 'paths' for module.  If not found, return 'None'.  If found,
+        return the extracted version attribute, or 'default' if no version
+        attribute was specified, or the value cannot be determined without
+        importing the module.  The version is formatted according to the
+        requirement's version format (if any), unless it is 'None' or the
+        supplied 'default'.
+        """
+
+        if self.attribute is None:
+            try:
+                f, p, i = find_module(self.module, paths)
+                if f:
+                    f.close()
+                return default
+            except ImportError:
+                return None
+
+        v = get_module_constant(self.module, self.attribute, default, paths)
+
+        if v is not None and v is not default and self.format is not None:
+            return self.format(v)
+
+        return v
+
+    def is_present(self, paths=None):
+        """Return true if dependency is present on 'paths'"""
+        return self.get_version(paths) is not None
+
+    def is_current(self, paths=None):
+        """Return true if dependency is present and up-to-date on 'paths'"""
+        version = self.get_version(paths)
+        if version is None:
+            return False
+        return self.version_ok(version)
+
+
+def find_module(module, paths=None):
+    """Just like 'imp.find_module()', but with package support"""
+
+    parts = module.split('.')
+
+    while parts:
+        part = parts.pop(0)
+        f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
+
+        if kind == PKG_DIRECTORY:
+            parts = parts or ['__init__']
+            paths = [path]
+
+        elif parts:
+            raise ImportError("Can't find %r in %s" % (parts, module))
+
+    return info
+
+
+def get_module_constant(module, symbol, default=-1, paths=None):
+    """Find 'module' by searching 'paths', and extract 'symbol'
+
+    Return 'None' if 'module' does not exist on 'paths', or it does not define
+    'symbol'.  If the module defines 'symbol' as a constant, return the
+    constant.  Otherwise, return 'default'."""
+
+    try:
+        f, path, (suffix, mode, kind) = find_module(module, paths)
+    except ImportError:
+        # Module doesn't exist
+        return None
+
+    try:
+        if kind == PY_COMPILED:
+            f.read(8)  # skip magic & date
+            code = marshal.load(f)
+        elif kind == PY_FROZEN:
+            code = imp.get_frozen_object(module)
+        elif kind == PY_SOURCE:
+            code = compile(f.read(), path, 'exec')
+        else:
+            # Not something we can parse; we'll have to import it.  :(
+            if module not in sys.modules:
+                imp.load_module(module, f, path, (suffix, mode, kind))
+            return getattr(sys.modules[module], symbol, None)
+
+    finally:
+        if f:
+            f.close()
+
+    return extract_constant(code, symbol, default)
+
+
+def extract_constant(code, symbol, default=-1):
+    """Extract the constant value of 'symbol' from 'code'
+
+    If the name 'symbol' is bound to a constant value by the Python code
+    object 'code', return that value.  If 'symbol' is bound to an expression,
+    return 'default'.  Otherwise, return 'None'.
+
+    Return value is based on the first assignment to 'symbol'.  'symbol' must
+    be a global, or at least a non-"fast" local in the code block.  That is,
+    only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol'
+    must be present in 'code.co_names'.
+    """
+    if symbol not in code.co_names:
+        # name's not there, can't possibly be an assignment
+        return None
+
+    name_idx = list(code.co_names).index(symbol)
+
+    STORE_NAME = 90
+    STORE_GLOBAL = 97
+    LOAD_CONST = 100
+
+    const = default
+
+    for byte_code in Bytecode(code):
+        op = byte_code.opcode
+        arg = byte_code.arg
+
+        if op == LOAD_CONST:
+            const = code.co_consts[arg]
+        elif arg == name_idx and (op == STORE_NAME or op == STORE_GLOBAL):
+            return const
+        else:
+            const = default
+
+
+def _update_globals():
+    """
+    Patch the globals to remove the objects not available on some platforms.
+
+    XXX it'd be better to test assertions about bytecode instead.
+    """
+
+    if not sys.platform.startswith('java') and sys.platform != 'cli':
+        return
+    incompatible = 'extract_constant', 'get_module_constant'
+    for name in incompatible:
+        del globals()[name]
+        __all__.remove(name)
+
+
+_update_globals()
diff --git a/venv/lib/python3.5/site-packages/setuptools/dist.py b/venv/lib/python3.5/site-packages/setuptools/dist.py
new file mode 100644
index 0000000..477f93d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/dist.py
@@ -0,0 +1,1012 @@
+__all__ = ['Distribution']
+
+import re
+import os
+import warnings
+import numbers
+import distutils.log
+import distutils.core
+import distutils.cmd
+import distutils.dist
+import itertools
+from collections import defaultdict
+from distutils.errors import (
+    DistutilsOptionError, DistutilsPlatformError, DistutilsSetupError,
+)
+from distutils.util import rfc822_escape
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter, filterfalse
+from pkg_resources.extern import packaging
+
+from setuptools.depends import Require
+from setuptools import windows_support
+from setuptools.monkey import get_unpatched
+from setuptools.config import parse_configuration
+import pkg_resources
+from .py36compat import Distribution_parse_config_files
+
+__import__('pkg_resources.extern.packaging.specifiers')
+__import__('pkg_resources.extern.packaging.version')
+
+
+def _get_unpatched(cls):
+    warnings.warn("Do not call this function", DeprecationWarning)
+    return get_unpatched(cls)
+
+
+# Based on Python 3.5 version
+def write_pkg_file(self, file):
+    """Write the PKG-INFO format data to a file object.
+    """
+    version = '1.0'
+    if (self.provides or self.requires or self.obsoletes or
+            self.classifiers or self.download_url):
+        version = '1.1'
+    # Setuptools specific for PEP 345
+    if hasattr(self, 'python_requires'):
+        version = '1.2'
+
+    file.write('Metadata-Version: %s\n' % version)
+    file.write('Name: %s\n' % self.get_name())
+    file.write('Version: %s\n' % self.get_version())
+    file.write('Summary: %s\n' % self.get_description())
+    file.write('Home-page: %s\n' % self.get_url())
+    file.write('Author: %s\n' % self.get_contact())
+    file.write('Author-email: %s\n' % self.get_contact_email())
+    file.write('License: %s\n' % self.get_license())
+    if self.download_url:
+        file.write('Download-URL: %s\n' % self.download_url)
+
+    long_desc_content_type = getattr(
+        self,
+        'long_description_content_type',
+        None
+    ) or 'UNKNOWN'
+    file.write('Description-Content-Type: %s\n' % long_desc_content_type)
+
+    long_desc = rfc822_escape(self.get_long_description())
+    file.write('Description: %s\n' % long_desc)
+
+    keywords = ','.join(self.get_keywords())
+    if keywords:
+        file.write('Keywords: %s\n' % keywords)
+
+    self._write_list(file, 'Platform', self.get_platforms())
+    self._write_list(file, 'Classifier', self.get_classifiers())
+
+    # PEP 314
+    self._write_list(file, 'Requires', self.get_requires())
+    self._write_list(file, 'Provides', self.get_provides())
+    self._write_list(file, 'Obsoletes', self.get_obsoletes())
+
+    # Setuptools specific for PEP 345
+    if hasattr(self, 'python_requires'):
+        file.write('Requires-Python: %s\n' % self.python_requires)
+
+
+# from Python 3.4
+def write_pkg_info(self, base_dir):
+    """Write the PKG-INFO file into the release tree.
+    """
+    with open(os.path.join(base_dir, 'PKG-INFO'), 'w',
+              encoding='UTF-8') as pkg_info:
+        self.write_pkg_file(pkg_info)
+
+
+sequence = tuple, list
+
+
+def check_importable(dist, attr, value):
+    try:
+        ep = pkg_resources.EntryPoint.parse('x=' + value)
+        assert not ep.extras
+    except (TypeError, ValueError, AttributeError, AssertionError):
+        raise DistutilsSetupError(
+            "%r must be importable 'module:attrs' string (got %r)"
+            % (attr, value)
+        )
+
+
+def assert_string_list(dist, attr, value):
+    """Verify that value is a string list or None"""
+    try:
+        assert ''.join(value) != value
+    except (TypeError, ValueError, AttributeError, AssertionError):
+        raise DistutilsSetupError(
+            "%r must be a list of strings (got %r)" % (attr, value)
+        )
+
+
+def check_nsp(dist, attr, value):
+    """Verify that namespace packages are valid"""
+    ns_packages = value
+    assert_string_list(dist, attr, ns_packages)
+    for nsp in ns_packages:
+        if not dist.has_contents_for(nsp):
+            raise DistutilsSetupError(
+                "Distribution contains no modules or packages for " +
+                "namespace package %r" % nsp
+            )
+        parent, sep, child = nsp.rpartition('.')
+        if parent and parent not in ns_packages:
+            distutils.log.warn(
+                "WARNING: %r is declared as a package namespace, but %r"
+                " is not: please correct this in setup.py", nsp, parent
+            )
+
+
+def check_extras(dist, attr, value):
+    """Verify that extras_require mapping is valid"""
+    try:
+        list(itertools.starmap(_check_extra, value.items()))
+    except (TypeError, ValueError, AttributeError):
+        raise DistutilsSetupError(
+            "'extras_require' must be a dictionary whose values are "
+            "strings or lists of strings containing valid project/version "
+            "requirement specifiers."
+        )
+
+
+def _check_extra(extra, reqs):
+    name, sep, marker = extra.partition(':')
+    if marker and pkg_resources.invalid_marker(marker):
+        raise DistutilsSetupError("Invalid environment marker: " + marker)
+    list(pkg_resources.parse_requirements(reqs))
+
+
+def assert_bool(dist, attr, value):
+    """Verify that value is True, False, 0, or 1"""
+    if bool(value) != value:
+        tmpl = "{attr!r} must be a boolean value (got {value!r})"
+        raise DistutilsSetupError(tmpl.format(attr=attr, value=value))
+
+
+def check_requirements(dist, attr, value):
+    """Verify that install_requires is a valid requirements list"""
+    try:
+        list(pkg_resources.parse_requirements(value))
+        if isinstance(value, (dict, set)):
+            raise TypeError("Unordered types are not allowed")
+    except (TypeError, ValueError) as error:
+        tmpl = (
+            "{attr!r} must be a string or list of strings "
+            "containing valid project/version requirement specifiers; {error}"
+        )
+        raise DistutilsSetupError(tmpl.format(attr=attr, error=error))
+
+
+def check_specifier(dist, attr, value):
+    """Verify that value is a valid version specifier"""
+    try:
+        packaging.specifiers.SpecifierSet(value)
+    except packaging.specifiers.InvalidSpecifier as error:
+        tmpl = (
+            "{attr!r} must be a string "
+            "containing valid version specifiers; {error}"
+        )
+        raise DistutilsSetupError(tmpl.format(attr=attr, error=error))
+
+
+def check_entry_points(dist, attr, value):
+    """Verify that entry_points map is parseable"""
+    try:
+        pkg_resources.EntryPoint.parse_map(value)
+    except ValueError as e:
+        raise DistutilsSetupError(e)
+
+
+def check_test_suite(dist, attr, value):
+    if not isinstance(value, six.string_types):
+        raise DistutilsSetupError("test_suite must be a string")
+
+
+def check_package_data(dist, attr, value):
+    """Verify that value is a dictionary of package names to glob lists"""
+    if isinstance(value, dict):
+        for k, v in value.items():
+            if not isinstance(k, str):
+                break
+            try:
+                iter(v)
+            except TypeError:
+                break
+        else:
+            return
+    raise DistutilsSetupError(
+        attr + " must be a dictionary mapping package names to lists of "
+        "wildcard patterns"
+    )
+
+
+def check_packages(dist, attr, value):
+    for pkgname in value:
+        if not re.match(r'\w+(\.\w+)*', pkgname):
+            distutils.log.warn(
+                "WARNING: %r not a valid package name; please use only "
+                ".-separated package names in setup.py", pkgname
+            )
+
+
+_Distribution = get_unpatched(distutils.core.Distribution)
+
+
+class Distribution(Distribution_parse_config_files, _Distribution):
+    """Distribution with support for features, tests, and package data
+
+    This is an enhanced version of 'distutils.dist.Distribution' that
+    effectively adds the following new optional keyword arguments to 'setup()':
+
+     'install_requires' -- a string or sequence of strings specifying project
+        versions that the distribution requires when installed, in the format
+        used by 'pkg_resources.require()'.  They will be installed
+        automatically when the package is installed.  If you wish to use
+        packages that are not available in PyPI, or want to give your users an
+        alternate download location, you can add a 'find_links' option to the
+        '[easy_install]' section of your project's 'setup.cfg' file, and then
+        setuptools will scan the listed web pages for links that satisfy the
+        requirements.
+
+     'extras_require' -- a dictionary mapping names of optional "extras" to the
+        additional requirement(s) that using those extras incurs. For example,
+        this::
+
+            extras_require = dict(reST = ["docutils>=0.3", "reSTedit"])
+
+        indicates that the distribution can optionally provide an extra
+        capability called "reST", but it can only be used if docutils and
+        reSTedit are installed.  If the user installs your package using
+        EasyInstall and requests one of your extras, the corresponding
+        additional requirements will be installed if needed.
+
+     'features' **deprecated** -- a dictionary mapping option names to
+        'setuptools.Feature'
+        objects.  Features are a portion of the distribution that can be
+        included or excluded based on user options, inter-feature dependencies,
+        and availability on the current system.  Excluded features are omitted
+        from all setup commands, including source and binary distributions, so
+        you can create multiple distributions from the same source tree.
+        Feature names should be valid Python identifiers, except that they may
+        contain the '-' (minus) sign.  Features can be included or excluded
+        via the command line options '--with-X' and '--without-X', where 'X' is
+        the name of the feature.  Whether a feature is included by default, and
+        whether you are allowed to control this from the command line, is
+        determined by the Feature object.  See the 'Feature' class for more
+        information.
+
+     'test_suite' -- the name of a test suite to run for the 'test' command.
+        If the user runs 'python setup.py test', the package will be installed,
+        and the named test suite will be run.  The format is the same as
+        would be used on a 'unittest.py' command line.  That is, it is the
+        dotted name of an object to import and call to generate a test suite.
+
+     'package_data' -- a dictionary mapping package names to lists of filenames
+        or globs to use to find data files contained in the named packages.
+        If the dictionary has filenames or globs listed under '""' (the empty
+        string), those names will be searched for in every package, in addition
+        to any names for the specific package.  Data files found using these
+        names/globs will be installed along with the package, in the same
+        location as the package.  Note that globs are allowed to reference
+        the contents of non-package subdirectories, as long as you use '/' as
+        a path separator.  (Globs are automatically converted to
+        platform-specific paths at runtime.)
+
+    In addition to these new keywords, this class also has several new methods
+    for manipulating the distribution's contents.  For example, the 'include()'
+    and 'exclude()' methods can be thought of as in-place add and subtract
+    commands that add or remove packages, modules, extensions, and so on from
+    the distribution.  They are used by the feature subsystem to configure the
+    distribution for the included and excluded features.
+    """
+
+    _patched_dist = None
+
+    def patch_missing_pkg_info(self, attrs):
+        # Fake up a replacement for the data that would normally come from
+        # PKG-INFO, but which might not yet be built if this is a fresh
+        # checkout.
+        #
+        if not attrs or 'name' not in attrs or 'version' not in attrs:
+            return
+        key = pkg_resources.safe_name(str(attrs['name'])).lower()
+        dist = pkg_resources.working_set.by_key.get(key)
+        if dist is not None and not dist.has_metadata('PKG-INFO'):
+            dist._version = pkg_resources.safe_version(str(attrs['version']))
+            self._patched_dist = dist
+
+    def __init__(self, attrs=None):
+        have_package_data = hasattr(self, "package_data")
+        if not have_package_data:
+            self.package_data = {}
+        attrs = attrs or {}
+        if 'features' in attrs or 'require_features' in attrs:
+            Feature.warn_deprecated()
+        self.require_features = []
+        self.features = {}
+        self.dist_files = []
+        self.src_root = attrs.pop("src_root", None)
+        self.patch_missing_pkg_info(attrs)
+        self.long_description_content_type = attrs.get(
+            'long_description_content_type'
+        )
+        self.dependency_links = attrs.pop('dependency_links', [])
+        self.setup_requires = attrs.pop('setup_requires', [])
+        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
+            vars(self).setdefault(ep.name, None)
+        _Distribution.__init__(self, attrs)
+        if isinstance(self.metadata.version, numbers.Number):
+            # Some people apparently take "version number" too literally :)
+            self.metadata.version = str(self.metadata.version)
+
+        if self.metadata.version is not None:
+            try:
+                ver = packaging.version.Version(self.metadata.version)
+                normalized_version = str(ver)
+                if self.metadata.version != normalized_version:
+                    warnings.warn(
+                        "Normalizing '%s' to '%s'" % (
+                            self.metadata.version,
+                            normalized_version,
+                        )
+                    )
+                    self.metadata.version = normalized_version
+            except (packaging.version.InvalidVersion, TypeError):
+                warnings.warn(
+                    "The version specified (%r) is an invalid version, this "
+                    "may not work as expected with newer versions of "
+                    "setuptools, pip, and PyPI. Please see PEP 440 for more "
+                    "details." % self.metadata.version
+                )
+        self._finalize_requires()
+
+    def _finalize_requires(self):
+        """
+        Set `metadata.python_requires` and fix environment markers
+        in `install_requires` and `extras_require`.
+        """
+        if getattr(self, 'python_requires', None):
+            self.metadata.python_requires = self.python_requires
+        self._convert_extras_requirements()
+        self._move_install_requirements_markers()
+
+    def _convert_extras_requirements(self):
+        """
+        Convert requirements in `extras_require` of the form
+        `"extra": ["barbazquux; {marker}"]` to
+        `"extra:{marker}": ["barbazquux"]`.
+        """
+        spec_ext_reqs = getattr(self, 'extras_require', None) or {}
+        self._tmp_extras_require = defaultdict(list)
+        for section, v in spec_ext_reqs.items():
+            # Do not strip empty sections.
+            self._tmp_extras_require[section]
+            for r in pkg_resources.parse_requirements(v):
+                suffix = self._suffix_for(r)
+                self._tmp_extras_require[section + suffix].append(r)
+
+    @staticmethod
+    def _suffix_for(req):
+        """
+        For a requirement, return the 'extras_require' suffix for
+        that requirement.
+        """
+        return ':' + str(req.marker) if req.marker else ''
+
+    def _move_install_requirements_markers(self):
+        """
+        Move requirements in `install_requires` that are using environment
+        markers `extras_require`.
+        """
+
+        # divide the install_requires into two sets, simple ones still
+        # handled by install_requires and more complex ones handled
+        # by extras_require.
+
+        def is_simple_req(req):
+            return not req.marker
+
+        spec_inst_reqs = getattr(self, 'install_requires', None) or ()
+        inst_reqs = list(pkg_resources.parse_requirements(spec_inst_reqs))
+        simple_reqs = filter(is_simple_req, inst_reqs)
+        complex_reqs = filterfalse(is_simple_req, inst_reqs)
+        self.install_requires = list(map(str, simple_reqs))
+
+        for r in complex_reqs:
+            self._tmp_extras_require[':' + str(r.marker)].append(r)
+        self.extras_require = dict(
+            (k, [str(r) for r in map(self._clean_req, v)])
+            for k, v in self._tmp_extras_require.items()
+        )
+
+    def _clean_req(self, req):
+        """
+        Given a Requirement, remove environment markers and return it.
+        """
+        req.marker = None
+        return req
+
+    def parse_config_files(self, filenames=None, ignore_option_errors=False):
+        """Parses configuration files from various levels
+        and loads configuration.
+
+        """
+        _Distribution.parse_config_files(self, filenames=filenames)
+
+        parse_configuration(self, self.command_options,
+                            ignore_option_errors=ignore_option_errors)
+        self._finalize_requires()
+
+    def parse_command_line(self):
+        """Process features after parsing command line options"""
+        result = _Distribution.parse_command_line(self)
+        if self.features:
+            self._finalize_features()
+        return result
+
+    def _feature_attrname(self, name):
+        """Convert feature name to corresponding option attribute name"""
+        return 'with_' + name.replace('-', '_')
+
+    def fetch_build_eggs(self, requires):
+        """Resolve pre-setup requirements"""
+        resolved_dists = pkg_resources.working_set.resolve(
+            pkg_resources.parse_requirements(requires),
+            installer=self.fetch_build_egg,
+            replace_conflicting=True,
+        )
+        for dist in resolved_dists:
+            pkg_resources.working_set.add(dist, replace=True)
+        return resolved_dists
+
+    def finalize_options(self):
+        _Distribution.finalize_options(self)
+        if self.features:
+            self._set_global_opts_from_features()
+
+        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
+            value = getattr(self, ep.name, None)
+            if value is not None:
+                ep.require(installer=self.fetch_build_egg)
+                ep.load()(self, ep.name, value)
+        if getattr(self, 'convert_2to3_doctests', None):
+            # XXX may convert to set here when we can rely on set being builtin
+            self.convert_2to3_doctests = [
+                os.path.abspath(p)
+                for p in self.convert_2to3_doctests
+            ]
+        else:
+            self.convert_2to3_doctests = []
+
+    def get_egg_cache_dir(self):
+        egg_cache_dir = os.path.join(os.curdir, '.eggs')
+        if not os.path.exists(egg_cache_dir):
+            os.mkdir(egg_cache_dir)
+            windows_support.hide_file(egg_cache_dir)
+            readme_txt_filename = os.path.join(egg_cache_dir, 'README.txt')
+            with open(readme_txt_filename, 'w') as f:
+                f.write('This directory contains eggs that were downloaded '
+                        'by setuptools to build, test, and run plug-ins.\n\n')
+                f.write('This directory caches those eggs to prevent '
+                        'repeated downloads.\n\n')
+                f.write('However, it is safe to delete this directory.\n\n')
+
+        return egg_cache_dir
+
+    def fetch_build_egg(self, req):
+        """Fetch an egg needed for building"""
+        from setuptools.command.easy_install import easy_install
+        dist = self.__class__({'script_args': ['easy_install']})
+        opts = dist.get_option_dict('easy_install')
+        opts.clear()
+        opts.update(
+            (k, v)
+            for k, v in self.get_option_dict('easy_install').items()
+            if k in (
+                # don't use any other settings
+                'find_links', 'site_dirs', 'index_url',
+                'optimize', 'site_dirs', 'allow_hosts',
+        ))
+        if self.dependency_links:
+            links = self.dependency_links[:]
+            if 'find_links' in opts:
+                links = opts['find_links'][1] + links
+            opts['find_links'] = ('setup', links)
+        install_dir = self.get_egg_cache_dir()
+        cmd = easy_install(
+            dist, args=["x"], install_dir=install_dir,
+            exclude_scripts=True,
+            always_copy=False, build_directory=None, editable=False,
+            upgrade=False, multi_version=True, no_report=True, user=False
+        )
+        cmd.ensure_finalized()
+        return cmd.easy_install(req)
+
+    def _set_global_opts_from_features(self):
+        """Add --with-X/--without-X options based on optional features"""
+
+        go = []
+        no = self.negative_opt.copy()
+
+        for name, feature in self.features.items():
+            self._set_feature(name, None)
+            feature.validate(self)
+
+            if feature.optional:
+                descr = feature.description
+                incdef = ' (default)'
+                excdef = ''
+                if not feature.include_by_default():
+                    excdef, incdef = incdef, excdef
+
+                new = (
+                    ('with-' + name, None, 'include ' + descr + incdef),
+                    ('without-' + name, None, 'exclude ' + descr + excdef),
+                )
+                go.extend(new)
+                no['without-' + name] = 'with-' + name
+
+        self.global_options = self.feature_options = go + self.global_options
+        self.negative_opt = self.feature_negopt = no
+
+    def _finalize_features(self):
+        """Add/remove features and resolve dependencies between them"""
+
+        # First, flag all the enabled items (and thus their dependencies)
+        for name, feature in self.features.items():
+            enabled = self.feature_is_included(name)
+            if enabled or (enabled is None and feature.include_by_default()):
+                feature.include_in(self)
+                self._set_feature(name, 1)
+
+        # Then disable the rest, so that off-by-default features don't
+        # get flagged as errors when they're required by an enabled feature
+        for name, feature in self.features.items():
+            if not self.feature_is_included(name):
+                feature.exclude_from(self)
+                self._set_feature(name, 0)
+
+    def get_command_class(self, command):
+        """Pluggable version of get_command_class()"""
+        if command in self.cmdclass:
+            return self.cmdclass[command]
+
+        eps = pkg_resources.iter_entry_points('distutils.commands', command)
+        for ep in eps:
+            ep.require(installer=self.fetch_build_egg)
+            self.cmdclass[command] = cmdclass = ep.load()
+            return cmdclass
+        else:
+            return _Distribution.get_command_class(self, command)
+
+    def print_commands(self):
+        for ep in pkg_resources.iter_entry_points('distutils.commands'):
+            if ep.name not in self.cmdclass:
+                # don't require extras as the commands won't be invoked
+                cmdclass = ep.resolve()
+                self.cmdclass[ep.name] = cmdclass
+        return _Distribution.print_commands(self)
+
+    def get_command_list(self):
+        for ep in pkg_resources.iter_entry_points('distutils.commands'):
+            if ep.name not in self.cmdclass:
+                # don't require extras as the commands won't be invoked
+                cmdclass = ep.resolve()
+                self.cmdclass[ep.name] = cmdclass
+        return _Distribution.get_command_list(self)
+
+    def _set_feature(self, name, status):
+        """Set feature's inclusion status"""
+        setattr(self, self._feature_attrname(name), status)
+
+    def feature_is_included(self, name):
+        """Return 1 if feature is included, 0 if excluded, 'None' if unknown"""
+        return getattr(self, self._feature_attrname(name))
+
+    def include_feature(self, name):
+        """Request inclusion of feature named 'name'"""
+
+        if self.feature_is_included(name) == 0:
+            descr = self.features[name].description
+            raise DistutilsOptionError(
+                descr + " is required, but was excluded or is not available"
+            )
+        self.features[name].include_in(self)
+        self._set_feature(name, 1)
+
+    def include(self, **attrs):
+        """Add items to distribution that are named in keyword arguments
+
+        For example, 'dist.exclude(py_modules=["x"])' would add 'x' to
+        the distribution's 'py_modules' attribute, if it was not already
+        there.
+
+        Currently, this method only supports inclusion for attributes that are
+        lists or tuples.  If you need to add support for adding to other
+        attributes in this or a subclass, you can add an '_include_X' method,
+        where 'X' is the name of the attribute.  The method will be called with
+        the value passed to 'include()'.  So, 'dist.include(foo={"bar":"baz"})'
+        will try to call 'dist._include_foo({"bar":"baz"})', which can then
+        handle whatever special inclusion logic is needed.
+        """
+        for k, v in attrs.items():
+            include = getattr(self, '_include_' + k, None)
+            if include:
+                include(v)
+            else:
+                self._include_misc(k, v)
+
+    def exclude_package(self, package):
+        """Remove packages, modules, and extensions in named package"""
+
+        pfx = package + '.'
+        if self.packages:
+            self.packages = [
+                p for p in self.packages
+                if p != package and not p.startswith(pfx)
+            ]
+
+        if self.py_modules:
+            self.py_modules = [
+                p for p in self.py_modules
+                if p != package and not p.startswith(pfx)
+            ]
+
+        if self.ext_modules:
+            self.ext_modules = [
+                p for p in self.ext_modules
+                if p.name != package and not p.name.startswith(pfx)
+            ]
+
+    def has_contents_for(self, package):
+        """Return true if 'exclude_package(package)' would do something"""
+
+        pfx = package + '.'
+
+        for p in self.iter_distribution_names():
+            if p == package or p.startswith(pfx):
+                return True
+
+    def _exclude_misc(self, name, value):
+        """Handle 'exclude()' for list/tuple attrs without a special handler"""
+        if not isinstance(value, sequence):
+            raise DistutilsSetupError(
+                "%s: setting must be a list or tuple (%r)" % (name, value)
+            )
+        try:
+            old = getattr(self, name)
+        except AttributeError:
+            raise DistutilsSetupError(
+                "%s: No such distribution setting" % name
+            )
+        if old is not None and not isinstance(old, sequence):
+            raise DistutilsSetupError(
+                name + ": this setting cannot be changed via include/exclude"
+            )
+        elif old:
+            setattr(self, name, [item for item in old if item not in value])
+
+    def _include_misc(self, name, value):
+        """Handle 'include()' for list/tuple attrs without a special handler"""
+
+        if not isinstance(value, sequence):
+            raise DistutilsSetupError(
+                "%s: setting must be a list (%r)" % (name, value)
+            )
+        try:
+            old = getattr(self, name)
+        except AttributeError:
+            raise DistutilsSetupError(
+                "%s: No such distribution setting" % name
+            )
+        if old is None:
+            setattr(self, name, value)
+        elif not isinstance(old, sequence):
+            raise DistutilsSetupError(
+                name + ": this setting cannot be changed via include/exclude"
+            )
+        else:
+            new = [item for item in value if item not in old]
+            setattr(self, name, old + new)
+
+    def exclude(self, **attrs):
+        """Remove items from distribution that are named in keyword arguments
+
+        For example, 'dist.exclude(py_modules=["x"])' would remove 'x' from
+        the distribution's 'py_modules' attribute.  Excluding packages uses
+        the 'exclude_package()' method, so all of the package's contained
+        packages, modules, and extensions are also excluded.
+
+        Currently, this method only supports exclusion from attributes that are
+        lists or tuples.  If you need to add support for excluding from other
+        attributes in this or a subclass, you can add an '_exclude_X' method,
+        where 'X' is the name of the attribute.  The method will be called with
+        the value passed to 'exclude()'.  So, 'dist.exclude(foo={"bar":"baz"})'
+        will try to call 'dist._exclude_foo({"bar":"baz"})', which can then
+        handle whatever special exclusion logic is needed.
+        """
+        for k, v in attrs.items():
+            exclude = getattr(self, '_exclude_' + k, None)
+            if exclude:
+                exclude(v)
+            else:
+                self._exclude_misc(k, v)
+
+    def _exclude_packages(self, packages):
+        if not isinstance(packages, sequence):
+            raise DistutilsSetupError(
+                "packages: setting must be a list or tuple (%r)" % (packages,)
+            )
+        list(map(self.exclude_package, packages))
+
+    def _parse_command_opts(self, parser, args):
+        # Remove --with-X/--without-X options when processing command args
+        self.global_options = self.__class__.global_options
+        self.negative_opt = self.__class__.negative_opt
+
+        # First, expand any aliases
+        command = args[0]
+        aliases = self.get_option_dict('aliases')
+        while command in aliases:
+            src, alias = aliases[command]
+            del aliases[command]  # ensure each alias can expand only once!
+            import shlex
+            args[:1] = shlex.split(alias, True)
+            command = args[0]
+
+        nargs = _Distribution._parse_command_opts(self, parser, args)
+
+        # Handle commands that want to consume all remaining arguments
+        cmd_class = self.get_command_class(command)
+        if getattr(cmd_class, 'command_consumes_arguments', None):
+            self.get_option_dict(command)['args'] = ("command line", nargs)
+            if nargs is not None:
+                return []
+
+        return nargs
+
+    def get_cmdline_options(self):
+        """Return a '{cmd: {opt:val}}' map of all command-line options
+
+        Option names are all long, but do not include the leading '--', and
+        contain dashes rather than underscores.  If the option doesn't take
+        an argument (e.g. '--quiet'), the 'val' is 'None'.
+
+        Note that options provided by config files are intentionally excluded.
+        """
+
+        d = {}
+
+        for cmd, opts in self.command_options.items():
+
+            for opt, (src, val) in opts.items():
+
+                if src != "command line":
+                    continue
+
+                opt = opt.replace('_', '-')
+
+                if val == 0:
+                    cmdobj = self.get_command_obj(cmd)
+                    neg_opt = self.negative_opt.copy()
+                    neg_opt.update(getattr(cmdobj, 'negative_opt', {}))
+                    for neg, pos in neg_opt.items():
+                        if pos == opt:
+                            opt = neg
+                            val = None
+                            break
+                    else:
+                        raise AssertionError("Shouldn't be able to get here")
+
+                elif val == 1:
+                    val = None
+
+                d.setdefault(cmd, {})[opt] = val
+
+        return d
+
+    def iter_distribution_names(self):
+        """Yield all packages, modules, and extension names in distribution"""
+
+        for pkg in self.packages or ():
+            yield pkg
+
+        for module in self.py_modules or ():
+            yield module
+
+        for ext in self.ext_modules or ():
+            if isinstance(ext, tuple):
+                name, buildinfo = ext
+            else:
+                name = ext.name
+            if name.endswith('module'):
+                name = name[:-6]
+            yield name
+
+    def handle_display_options(self, option_order):
+        """If there were any non-global "display-only" options
+        (--help-commands or the metadata display options) on the command
+        line, display the requested info and return true; else return
+        false.
+        """
+        import sys
+
+        if six.PY2 or self.help_commands:
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Stdout may be StringIO (e.g. in tests)
+        import io
+        if not isinstance(sys.stdout, io.TextIOWrapper):
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Don't wrap stdout if utf-8 is already the encoding. Provides
+        #  workaround for #334.
+        if sys.stdout.encoding.lower() in ('utf-8', 'utf8'):
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Print metadata in UTF-8 no matter the platform
+        encoding = sys.stdout.encoding
+        errors = sys.stdout.errors
+        newline = sys.platform != 'win32' and '\n' or None
+        line_buffering = sys.stdout.line_buffering
+
+        sys.stdout = io.TextIOWrapper(
+            sys.stdout.detach(), 'utf-8', errors, newline, line_buffering)
+        try:
+            return _Distribution.handle_display_options(self, option_order)
+        finally:
+            sys.stdout = io.TextIOWrapper(
+                sys.stdout.detach(), encoding, errors, newline, line_buffering)
+
+
+class Feature:
+    """
+    **deprecated** -- The `Feature` facility was never completely implemented
+    or supported, `has reported issues
+    <https://github.com/pypa/setuptools/issues/58>`_ and will be removed in
+    a future version.
+
+    A subset of the distribution that can be excluded if unneeded/wanted
+
+    Features are created using these keyword arguments:
+
+      'description' -- a short, human readable description of the feature, to
+         be used in error messages, and option help messages.
+
+      'standard' -- if true, the feature is included by default if it is
+         available on the current system.  Otherwise, the feature is only
+         included if requested via a command line '--with-X' option, or if
+         another included feature requires it.  The default setting is 'False'.
+
+      'available' -- if true, the feature is available for installation on the
+         current system.  The default setting is 'True'.
+
+      'optional' -- if true, the feature's inclusion can be controlled from the
+         command line, using the '--with-X' or '--without-X' options.  If
+         false, the feature's inclusion status is determined automatically,
+         based on 'availabile', 'standard', and whether any other feature
+         requires it.  The default setting is 'True'.
+
+      'require_features' -- a string or sequence of strings naming features
+         that should also be included if this feature is included.  Defaults to
+         empty list.  May also contain 'Require' objects that should be
+         added/removed from the distribution.
+
+      'remove' -- a string or list of strings naming packages to be removed
+         from the distribution if this feature is *not* included.  If the
+         feature *is* included, this argument is ignored.  This argument exists
+         to support removing features that "crosscut" a distribution, such as
+         defining a 'tests' feature that removes all the 'tests' subpackages
+         provided by other features.  The default for this argument is an empty
+         list.  (Note: the named package(s) or modules must exist in the base
+         distribution when the 'setup()' function is initially called.)
+
+      other keywords -- any other keyword arguments are saved, and passed to
+         the distribution's 'include()' and 'exclude()' methods when the
+         feature is included or excluded, respectively.  So, for example, you
+         could pass 'packages=["a","b"]' to cause packages 'a' and 'b' to be
+         added or removed from the distribution as appropriate.
+
+    A feature must include at least one 'requires', 'remove', or other
+    keyword argument.  Otherwise, it can't affect the distribution in any way.
+    Note also that you can subclass 'Feature' to create your own specialized
+    feature types that modify the distribution in other ways when included or
+    excluded.  See the docstrings for the various methods here for more detail.
+    Aside from the methods, the only feature attributes that distributions look
+    at are 'description' and 'optional'.
+    """
+
+    @staticmethod
+    def warn_deprecated():
+        msg = (
+            "Features are deprecated and will be removed in a future "
+            "version. See https://github.com/pypa/setuptools/issues/65."
+        )
+        warnings.warn(msg, DeprecationWarning, stacklevel=3)
+
+    def __init__(
+            self, description, standard=False, available=True,
+            optional=True, require_features=(), remove=(), **extras):
+        self.warn_deprecated()
+
+        self.description = description
+        self.standard = standard
+        self.available = available
+        self.optional = optional
+        if isinstance(require_features, (str, Require)):
+            require_features = require_features,
+
+        self.require_features = [
+            r for r in require_features if isinstance(r, str)
+        ]
+        er = [r for r in require_features if not isinstance(r, str)]
+        if er:
+            extras['require_features'] = er
+
+        if isinstance(remove, str):
+            remove = remove,
+        self.remove = remove
+        self.extras = extras
+
+        if not remove and not require_features and not extras:
+            raise DistutilsSetupError(
+                "Feature %s: must define 'require_features', 'remove', or "
+                "at least one of 'packages', 'py_modules', etc."
+            )
+
+    def include_by_default(self):
+        """Should this feature be included by default?"""
+        return self.available and self.standard
+
+    def include_in(self, dist):
+        """Ensure feature and its requirements are included in distribution
+
+        You may override this in a subclass to perform additional operations on
+        the distribution.  Note that this method may be called more than once
+        per feature, and so should be idempotent.
+
+        """
+
+        if not self.available:
+            raise DistutilsPlatformError(
+                self.description + " is required, "
+                "but is not available on this platform"
+            )
+
+        dist.include(**self.extras)
+
+        for f in self.require_features:
+            dist.include_feature(f)
+
+    def exclude_from(self, dist):
+        """Ensure feature is excluded from distribution
+
+        You may override this in a subclass to perform additional operations on
+        the distribution.  This method will be called at most once per
+        feature, and only after all included features have been asked to
+        include themselves.
+        """
+
+        dist.exclude(**self.extras)
+
+        if self.remove:
+            for item in self.remove:
+                dist.exclude_package(item)
+
+    def validate(self, dist):
+        """Verify that feature makes sense in context of distribution
+
+        This method is called by the distribution just before it parses its
+        command line.  It checks to ensure that the 'remove' attribute, if any,
+        contains only valid package/module names that are present in the base
+        distribution when 'setup()' is called.  You may override it in a
+        subclass to perform any other required validation of the feature
+        against a target distribution.
+        """
+
+        for item in self.remove:
+            if not dist.has_contents_for(item):
+                raise DistutilsSetupError(
+                    "%s wants to be able to remove %s, but the distribution"
+                    " doesn't contain any packages or modules under %s"
+                    % (self.description, item, item)
+                )
diff --git a/venv/lib/python3.5/site-packages/setuptools/extension.py b/venv/lib/python3.5/site-packages/setuptools/extension.py
new file mode 100644
index 0000000..2946889
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/extension.py
@@ -0,0 +1,57 @@
+import re
+import functools
+import distutils.core
+import distutils.errors
+import distutils.extension
+
+from setuptools.extern.six.moves import map
+
+from .monkey import get_unpatched
+
+
+def _have_cython():
+    """
+    Return True if Cython can be imported.
+    """
+    cython_impl = 'Cython.Distutils.build_ext'
+    try:
+        # from (cython_impl) import build_ext
+        __import__(cython_impl, fromlist=['build_ext']).build_ext
+        return True
+    except Exception:
+        pass
+    return False
+
+
+# for compatibility
+have_pyrex = _have_cython
+
+_Extension = get_unpatched(distutils.core.Extension)
+
+
+class Extension(_Extension):
+    """Extension that uses '.c' files in place of '.pyx' files"""
+
+    def __init__(self, name, sources, *args, **kw):
+        # The *args is needed for compatibility as calls may use positional
+        # arguments. py_limited_api may be set only via keyword.
+        self.py_limited_api = kw.pop("py_limited_api", False)
+        _Extension.__init__(self, name, sources, *args, **kw)
+
+    def _convert_pyx_sources_to_lang(self):
+        """
+        Replace sources with .pyx extensions to sources with the target
+        language extension. This mechanism allows language authors to supply
+        pre-converted sources but to prefer the .pyx sources.
+        """
+        if _have_cython():
+            # the build has Cython, so allow it to compile the .pyx files
+            return
+        lang = self.language or ''
+        target_ext = '.cpp' if lang.lower() == 'c++' else '.c'
+        sub = functools.partial(re.sub, '.pyx$', target_ext)
+        self.sources = list(map(sub, self.sources))
+
+
+class Library(Extension):
+    """Just like a regular Extension, but built as a library instead"""
diff --git a/venv/lib/python3.5/site-packages/setuptools/extern/__init__.py b/venv/lib/python3.5/site-packages/setuptools/extern/__init__.py
new file mode 100644
index 0000000..2cd08b7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/extern/__init__.py
@@ -0,0 +1,4 @@
+from pkg_resources.extern import VendorImporter
+
+names = 'six',
+VendorImporter(__name__, names, 'pkg_resources._vendor').install()
diff --git a/venv/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..7164f6f
Binary files /dev/null and b/venv/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/setuptools/glibc.py b/venv/lib/python3.5/site-packages/setuptools/glibc.py
new file mode 100644
index 0000000..a134591
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/glibc.py
@@ -0,0 +1,86 @@
+# This file originally from pip:
+# https://github.com/pypa/pip/blob/8f4f15a5a95d7d5b511ceaee9ed261176c181970/src/pip/_internal/utils/glibc.py
+from __future__ import absolute_import
+
+import ctypes
+import re
+import warnings
+
+
+def glibc_version_string():
+    "Returns glibc version string, or None if not using glibc."
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    process_namespace = ctypes.CDLL(None)
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+# Separated out from have_compatible_glibc for easier unit testing
+def check_glibc_version(version_str, required_major, minimum_minor):
+    # Parse string and check against requested version.
+    #
+    # We use a regexp instead of str.split because we want to discard any
+    # random junk that might come after the minor version -- this might happen
+    # in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    # uses version strings like "2.20-2014.11"). See gh-3588.
+    m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
+    if not m:
+        warnings.warn("Expected glibc version with 2 components major.minor,"
+                      " got: %s" % version_str, RuntimeWarning)
+        return False
+    return (int(m.group("major")) == required_major and
+            int(m.group("minor")) >= minimum_minor)
+
+
+def have_compatible_glibc(required_major, minimum_minor):
+    version_str = glibc_version_string()
+    if version_str is None:
+        return False
+    return check_glibc_version(version_str, required_major, minimum_minor)
+
+
+# platform.libc_ver regularly returns completely nonsensical glibc
+# versions. E.g. on my computer, platform says:
+#
+#   ~$ python2.7 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.7')
+#   ~$ python3.5 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.9')
+#
+# But the truth is:
+#
+#   ~$ ldd --version
+#   ldd (Debian GLIBC 2.22-11) 2.22
+#
+# This is unfortunate, because it means that the linehaul data on libc
+# versions that was generated by pip 8.1.2 and earlier is useless and
+# misleading. Solution: instead of using platform, use our code that actually
+# works.
+def libc_ver():
+    """Try to determine the glibc version
+
+    Returns a tuple of strings (lib, version) which default to empty strings
+    in case the lookup fails.
+    """
+    glibc_version = glibc_version_string()
+    if glibc_version is None:
+        return ("", "")
+    else:
+        return ("glibc", glibc_version)
diff --git a/venv/lib/python3.5/site-packages/setuptools/glob.py b/venv/lib/python3.5/site-packages/setuptools/glob.py
new file mode 100644
index 0000000..6c781de
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/glob.py
@@ -0,0 +1,176 @@
+"""
+Filename globbing utility. Mostly a copy of `glob` from Python 3.5.
+
+Changes include:
+ * `yield from` and PEP3102 `*` removed.
+ * `bytes` changed to `six.binary_type`.
+ * Hidden files are not ignored.
+"""
+
+import os
+import re
+import fnmatch
+from setuptools.extern.six import binary_type
+
+__all__ = ["glob", "iglob", "escape"]
+
+
+def glob(pathname, recursive=False):
+    """Return a list of paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    return list(iglob(pathname, recursive=recursive))
+
+
+def iglob(pathname, recursive=False):
+    """Return an iterator which yields the paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    it = _iglob(pathname, recursive)
+    if recursive and _isrecursive(pathname):
+        s = next(it)  # skip empty string
+        assert not s
+    return it
+
+
+def _iglob(pathname, recursive):
+    dirname, basename = os.path.split(pathname)
+    if not has_magic(pathname):
+        if basename:
+            if os.path.lexists(pathname):
+                yield pathname
+        else:
+            # Patterns ending with a slash should match only directories
+            if os.path.isdir(dirname):
+                yield pathname
+        return
+    if not dirname:
+        if recursive and _isrecursive(basename):
+            for x in glob2(dirname, basename):
+                yield x
+        else:
+            for x in glob1(dirname, basename):
+                yield x
+        return
+    # `os.path.split()` returns the argument itself as a dirname if it is a
+    # drive or UNC path.  Prevent an infinite recursion if a drive or UNC path
+    # contains magic characters (i.e. r'\\?\C:').
+    if dirname != pathname and has_magic(dirname):
+        dirs = _iglob(dirname, recursive)
+    else:
+        dirs = [dirname]
+    if has_magic(basename):
+        if recursive and _isrecursive(basename):
+            glob_in_dir = glob2
+        else:
+            glob_in_dir = glob1
+    else:
+        glob_in_dir = glob0
+    for dirname in dirs:
+        for name in glob_in_dir(dirname, basename):
+            yield os.path.join(dirname, name)
+
+
+# These 2 helper functions non-recursively glob inside a literal directory.
+# They return a list of basenames. `glob1` accepts a pattern while `glob0`
+# takes a literal basename (so it only has to check for its existence).
+
+
+def glob1(dirname, pattern):
+    if not dirname:
+        if isinstance(pattern, binary_type):
+            dirname = os.curdir.encode('ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except OSError:
+        return []
+    return fnmatch.filter(names, pattern)
+
+
+def glob0(dirname, basename):
+    if not basename:
+        # `os.path.split()` returns an empty basename for paths ending with a
+        # directory separator.  'q*x/' should match only directories.
+        if os.path.isdir(dirname):
+            return [basename]
+    else:
+        if os.path.lexists(os.path.join(dirname, basename)):
+            return [basename]
+    return []
+
+
+# This helper function recursively yields relative pathnames inside a literal
+# directory.
+
+
+def glob2(dirname, pattern):
+    assert _isrecursive(pattern)
+    yield pattern[:0]
+    for x in _rlistdir(dirname):
+        yield x
+
+
+# Recursively yields relative pathnames inside a literal directory.
+def _rlistdir(dirname):
+    if not dirname:
+        if isinstance(dirname, binary_type):
+            dirname = binary_type(os.curdir, 'ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except os.error:
+        return
+    for x in names:
+        yield x
+        path = os.path.join(dirname, x) if dirname else x
+        for y in _rlistdir(path):
+            yield os.path.join(x, y)
+
+
+magic_check = re.compile('([*?[])')
+magic_check_bytes = re.compile(b'([*?[])')
+
+
+def has_magic(s):
+    if isinstance(s, binary_type):
+        match = magic_check_bytes.search(s)
+    else:
+        match = magic_check.search(s)
+    return match is not None
+
+
+def _isrecursive(pattern):
+    if isinstance(pattern, binary_type):
+        return pattern == b'**'
+    else:
+        return pattern == '**'
+
+
+def escape(pathname):
+    """Escape all special characters.
+    """
+    # Escaping is done by wrapping any of "*?[" between square brackets.
+    # Metacharacters do not work in the drive part and shouldn't be escaped.
+    drive, pathname = os.path.splitdrive(pathname)
+    if isinstance(pathname, binary_type):
+        pathname = magic_check_bytes.sub(br'[\1]', pathname)
+    else:
+        pathname = magic_check.sub(r'[\1]', pathname)
+    return drive + pathname
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diff --git a/venv/lib/python3.5/site-packages/setuptools/gui.exe b/venv/lib/python3.5/site-packages/setuptools/gui.exe
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diff --git a/venv/lib/python3.5/site-packages/setuptools/launch.py b/venv/lib/python3.5/site-packages/setuptools/launch.py
new file mode 100644
index 0000000..308283e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/launch.py
@@ -0,0 +1,35 @@
+"""
+Launch the Python script on the command line after
+setuptools is bootstrapped via import.
+"""
+
+# Note that setuptools gets imported implicitly by the
+# invocation of this script using python -m setuptools.launch
+
+import tokenize
+import sys
+
+
+def run():
+    """
+    Run the script in sys.argv[1] as if it had
+    been invoked naturally.
+    """
+    __builtins__
+    script_name = sys.argv[1]
+    namespace = dict(
+        __file__=script_name,
+        __name__='__main__',
+        __doc__=None,
+    )
+    sys.argv[:] = sys.argv[1:]
+
+    open_ = getattr(tokenize, 'open', open)
+    script = open_(script_name).read()
+    norm_script = script.replace('\\r\\n', '\\n')
+    code = compile(norm_script, script_name, 'exec')
+    exec(code, namespace)
+
+
+if __name__ == '__main__':
+    run()
diff --git a/venv/lib/python3.5/site-packages/setuptools/lib2to3_ex.py b/venv/lib/python3.5/site-packages/setuptools/lib2to3_ex.py
new file mode 100644
index 0000000..4b1a73f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/lib2to3_ex.py
@@ -0,0 +1,62 @@
+"""
+Customized Mixin2to3 support:
+
+ - adds support for converting doctests
+
+
+This module raises an ImportError on Python 2.
+"""
+
+from distutils.util import Mixin2to3 as _Mixin2to3
+from distutils import log
+from lib2to3.refactor import RefactoringTool, get_fixers_from_package
+
+import setuptools
+
+
+class DistutilsRefactoringTool(RefactoringTool):
+    def log_error(self, msg, *args, **kw):
+        log.error(msg, *args)
+
+    def log_message(self, msg, *args):
+        log.info(msg, *args)
+
+    def log_debug(self, msg, *args):
+        log.debug(msg, *args)
+
+
+class Mixin2to3(_Mixin2to3):
+    def run_2to3(self, files, doctests=False):
+        # See of the distribution option has been set, otherwise check the
+        # setuptools default.
+        if self.distribution.use_2to3 is not True:
+            return
+        if not files:
+            return
+        log.info("Fixing " + " ".join(files))
+        self.__build_fixer_names()
+        self.__exclude_fixers()
+        if doctests:
+            if setuptools.run_2to3_on_doctests:
+                r = DistutilsRefactoringTool(self.fixer_names)
+                r.refactor(files, write=True, doctests_only=True)
+        else:
+            _Mixin2to3.run_2to3(self, files)
+
+    def __build_fixer_names(self):
+        if self.fixer_names:
+            return
+        self.fixer_names = []
+        for p in setuptools.lib2to3_fixer_packages:
+            self.fixer_names.extend(get_fixers_from_package(p))
+        if self.distribution.use_2to3_fixers is not None:
+            for p in self.distribution.use_2to3_fixers:
+                self.fixer_names.extend(get_fixers_from_package(p))
+
+    def __exclude_fixers(self):
+        excluded_fixers = getattr(self, 'exclude_fixers', [])
+        if self.distribution.use_2to3_exclude_fixers is not None:
+            excluded_fixers.extend(self.distribution.use_2to3_exclude_fixers)
+        for fixer_name in excluded_fixers:
+            if fixer_name in self.fixer_names:
+                self.fixer_names.remove(fixer_name)
diff --git a/venv/lib/python3.5/site-packages/setuptools/monkey.py b/venv/lib/python3.5/site-packages/setuptools/monkey.py
new file mode 100644
index 0000000..d9eb7d7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/monkey.py
@@ -0,0 +1,197 @@
+"""
+Monkey patching of distutils.
+"""
+
+import sys
+import distutils.filelist
+import platform
+import types
+import functools
+from importlib import import_module
+import inspect
+
+from setuptools.extern import six
+
+import setuptools
+
+__all__ = []
+"""
+Everything is private. Contact the project team
+if you think you need this functionality.
+"""
+
+
+def _get_mro(cls):
+    """
+    Returns the bases classes for cls sorted by the MRO.
+
+    Works around an issue on Jython where inspect.getmro will not return all
+    base classes if multiple classes share the same name. Instead, this
+    function will return a tuple containing the class itself, and the contents
+    of cls.__bases__. See https://github.com/pypa/setuptools/issues/1024.
+    """
+    if platform.python_implementation() == "Jython":
+        return (cls,) + cls.__bases__
+    return inspect.getmro(cls)
+
+
+def get_unpatched(item):
+    lookup = (
+        get_unpatched_class if isinstance(item, six.class_types) else
+        get_unpatched_function if isinstance(item, types.FunctionType) else
+        lambda item: None
+    )
+    return lookup(item)
+
+
+def get_unpatched_class(cls):
+    """Protect against re-patching the distutils if reloaded
+
+    Also ensures that no other distutils extension monkeypatched the distutils
+    first.
+    """
+    external_bases = (
+        cls
+        for cls in _get_mro(cls)
+        if not cls.__module__.startswith('setuptools')
+    )
+    base = next(external_bases)
+    if not base.__module__.startswith('distutils'):
+        msg = "distutils has already been patched by %r" % cls
+        raise AssertionError(msg)
+    return base
+
+
+def patch_all():
+    # we can't patch distutils.cmd, alas
+    distutils.core.Command = setuptools.Command
+
+    has_issue_12885 = sys.version_info <= (3, 5, 3)
+
+    if has_issue_12885:
+        # fix findall bug in distutils (http://bugs.python.org/issue12885)
+        distutils.filelist.findall = setuptools.findall
+
+    needs_warehouse = (
+        sys.version_info < (2, 7, 13)
+        or
+        (3, 0) < sys.version_info < (3, 3, 7)
+        or
+        (3, 4) < sys.version_info < (3, 4, 6)
+        or
+        (3, 5) < sys.version_info <= (3, 5, 3)
+    )
+
+    if needs_warehouse:
+        warehouse = 'https://upload.pypi.org/legacy/'
+        distutils.config.PyPIRCCommand.DEFAULT_REPOSITORY = warehouse
+
+    _patch_distribution_metadata_write_pkg_file()
+    _patch_distribution_metadata_write_pkg_info()
+
+    # Install Distribution throughout the distutils
+    for module in distutils.dist, distutils.core, distutils.cmd:
+        module.Distribution = setuptools.dist.Distribution
+
+    # Install the patched Extension
+    distutils.core.Extension = setuptools.extension.Extension
+    distutils.extension.Extension = setuptools.extension.Extension
+    if 'distutils.command.build_ext' in sys.modules:
+        sys.modules['distutils.command.build_ext'].Extension = (
+            setuptools.extension.Extension
+        )
+
+    patch_for_msvc_specialized_compiler()
+
+
+def _patch_distribution_metadata_write_pkg_file():
+    """Patch write_pkg_file to also write Requires-Python/Requires-External"""
+    distutils.dist.DistributionMetadata.write_pkg_file = (
+        setuptools.dist.write_pkg_file
+    )
+
+
+def _patch_distribution_metadata_write_pkg_info():
+    """
+    Workaround issue #197 - Python 3 prior to 3.2.2 uses an environment-local
+    encoding to save the pkg_info. Monkey-patch its write_pkg_info method to
+    correct this undesirable behavior.
+    """
+    environment_local = (3,) <= sys.version_info[:3] < (3, 2, 2)
+    if not environment_local:
+        return
+
+    distutils.dist.DistributionMetadata.write_pkg_info = (
+        setuptools.dist.write_pkg_info
+    )
+
+
+def patch_func(replacement, target_mod, func_name):
+    """
+    Patch func_name in target_mod with replacement
+
+    Important - original must be resolved by name to avoid
+    patching an already patched function.
+    """
+    original = getattr(target_mod, func_name)
+
+    # set the 'unpatched' attribute on the replacement to
+    # point to the original.
+    vars(replacement).setdefault('unpatched', original)
+
+    # replace the function in the original module
+    setattr(target_mod, func_name, replacement)
+
+
+def get_unpatched_function(candidate):
+    return getattr(candidate, 'unpatched')
+
+
+def patch_for_msvc_specialized_compiler():
+    """
+    Patch functions in distutils to use standalone Microsoft Visual C++
+    compilers.
+    """
+    # import late to avoid circular imports on Python < 3.5
+    msvc = import_module('setuptools.msvc')
+
+    if platform.system() != 'Windows':
+        # Compilers only availables on Microsoft Windows
+        return
+
+    def patch_params(mod_name, func_name):
+        """
+        Prepare the parameters for patch_func to patch indicated function.
+        """
+        repl_prefix = 'msvc9_' if 'msvc9' in mod_name else 'msvc14_'
+        repl_name = repl_prefix + func_name.lstrip('_')
+        repl = getattr(msvc, repl_name)
+        mod = import_module(mod_name)
+        if not hasattr(mod, func_name):
+            raise ImportError(func_name)
+        return repl, mod, func_name
+
+    # Python 2.7 to 3.4
+    msvc9 = functools.partial(patch_params, 'distutils.msvc9compiler')
+
+    # Python 3.5+
+    msvc14 = functools.partial(patch_params, 'distutils._msvccompiler')
+
+    try:
+        # Patch distutils.msvc9compiler
+        patch_func(*msvc9('find_vcvarsall'))
+        patch_func(*msvc9('query_vcvarsall'))
+    except ImportError:
+        pass
+
+    try:
+        # Patch distutils._msvccompiler._get_vc_env
+        patch_func(*msvc14('_get_vc_env'))
+    except ImportError:
+        pass
+
+    try:
+        # Patch distutils._msvccompiler.gen_lib_options for Numpy
+        patch_func(*msvc14('gen_lib_options'))
+    except ImportError:
+        pass
diff --git a/venv/lib/python3.5/site-packages/setuptools/msvc.py b/venv/lib/python3.5/site-packages/setuptools/msvc.py
new file mode 100644
index 0000000..8e3b638
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/msvc.py
@@ -0,0 +1,1302 @@
+"""
+Improved support for Microsoft Visual C++ compilers.
+
+Known supported compilers:
+--------------------------
+Microsoft Visual C++ 9.0:
+    Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+    Microsoft Windows SDK 6.1 (x86, x64, ia64)
+    Microsoft Windows SDK 7.0 (x86, x64, ia64)
+
+Microsoft Visual C++ 10.0:
+    Microsoft Windows SDK 7.1 (x86, x64, ia64)
+
+Microsoft Visual C++ 14.0:
+    Microsoft Visual C++ Build Tools 2015 (x86, x64, arm)
+    Microsoft Visual Studio 2017 (x86, x64, arm, arm64)
+    Microsoft Visual Studio Build Tools 2017 (x86, x64, arm, arm64)
+"""
+
+import os
+import sys
+import platform
+import itertools
+import distutils.errors
+from pkg_resources.extern.packaging.version import LegacyVersion
+
+from setuptools.extern.six.moves import filterfalse
+
+from .monkey import get_unpatched
+
+if platform.system() == 'Windows':
+    from setuptools.extern.six.moves import winreg
+    safe_env = os.environ
+else:
+    """
+    Mock winreg and environ so the module can be imported
+    on this platform.
+    """
+
+    class winreg:
+        HKEY_USERS = None
+        HKEY_CURRENT_USER = None
+        HKEY_LOCAL_MACHINE = None
+        HKEY_CLASSES_ROOT = None
+
+    safe_env = dict()
+
+_msvc9_suppress_errors = (
+    # msvc9compiler isn't available on some platforms
+    ImportError,
+    
+    # msvc9compiler raises DistutilsPlatformError in some
+    # environments. See #1118.
+    distutils.errors.DistutilsPlatformError,
+)
+
+try:
+    from distutils.msvc9compiler import Reg
+except _msvc9_suppress_errors:
+    pass
+
+
+def msvc9_find_vcvarsall(version):
+    """
+    Patched "distutils.msvc9compiler.find_vcvarsall" to use the standalone
+    compiler build for Python (VCForPython). Fall back to original behavior
+    when the standalone compiler is not available.
+
+    Redirect the path of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 9.0:
+        Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+
+    Parameters
+    ----------
+    version: float
+        Required Microsoft Visual C++ version.
+
+    Return
+    ------
+    vcvarsall.bat path: str
+    """
+    VC_BASE = r'Software\%sMicrosoft\DevDiv\VCForPython\%0.1f'
+    key = VC_BASE % ('', version)
+    try:
+        # Per-user installs register the compiler path here
+        productdir = Reg.get_value(key, "installdir")
+    except KeyError:
+        try:
+            # All-user installs on a 64-bit system register here
+            key = VC_BASE % ('Wow6432Node\\', version)
+            productdir = Reg.get_value(key, "installdir")
+        except KeyError:
+            productdir = None
+
+    if productdir:
+        vcvarsall = os.path.os.path.join(productdir, "vcvarsall.bat")
+        if os.path.isfile(vcvarsall):
+            return vcvarsall
+
+    return get_unpatched(msvc9_find_vcvarsall)(version)
+
+
+def msvc9_query_vcvarsall(ver, arch='x86', *args, **kwargs):
+    """
+    Patched "distutils.msvc9compiler.query_vcvarsall" for support extra
+    compilers.
+
+    Set environment without use of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 9.0:
+        Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+        Microsoft Windows SDK 6.1 (x86, x64, ia64)
+        Microsoft Windows SDK 7.0 (x86, x64, ia64)
+
+    Microsoft Visual C++ 10.0:
+        Microsoft Windows SDK 7.1 (x86, x64, ia64)
+
+    Parameters
+    ----------
+    ver: float
+        Required Microsoft Visual C++ version.
+    arch: str
+        Target architecture.
+
+    Return
+    ------
+    environment: dict
+    """
+    # Try to get environement from vcvarsall.bat (Classical way)
+    try:
+        orig = get_unpatched(msvc9_query_vcvarsall)
+        return orig(ver, arch, *args, **kwargs)
+    except distutils.errors.DistutilsPlatformError:
+        # Pass error if Vcvarsall.bat is missing
+        pass
+    except ValueError:
+        # Pass error if environment not set after executing vcvarsall.bat
+        pass
+
+    # If error, try to set environment directly
+    try:
+        return EnvironmentInfo(arch, ver).return_env()
+    except distutils.errors.DistutilsPlatformError as exc:
+        _augment_exception(exc, ver, arch)
+        raise
+
+
+def msvc14_get_vc_env(plat_spec):
+    """
+    Patched "distutils._msvccompiler._get_vc_env" for support extra
+    compilers.
+
+    Set environment without use of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 14.0:
+        Microsoft Visual C++ Build Tools 2015 (x86, x64, arm)
+        Microsoft Visual Studio 2017 (x86, x64, arm, arm64)
+        Microsoft Visual Studio Build Tools 2017 (x86, x64, arm, arm64)
+
+    Parameters
+    ----------
+    plat_spec: str
+        Target architecture.
+
+    Return
+    ------
+    environment: dict
+    """
+    # Try to get environment from vcvarsall.bat (Classical way)
+    try:
+        return get_unpatched(msvc14_get_vc_env)(plat_spec)
+    except distutils.errors.DistutilsPlatformError:
+        # Pass error Vcvarsall.bat is missing
+        pass
+
+    # If error, try to set environment directly
+    try:
+        return EnvironmentInfo(plat_spec, vc_min_ver=14.0).return_env()
+    except distutils.errors.DistutilsPlatformError as exc:
+        _augment_exception(exc, 14.0)
+        raise
+
+
+def msvc14_gen_lib_options(*args, **kwargs):
+    """
+    Patched "distutils._msvccompiler.gen_lib_options" for fix
+    compatibility between "numpy.distutils" and "distutils._msvccompiler"
+    (for Numpy < 1.11.2)
+    """
+    if "numpy.distutils" in sys.modules:
+        import numpy as np
+        if LegacyVersion(np.__version__) < LegacyVersion('1.11.2'):
+            return np.distutils.ccompiler.gen_lib_options(*args, **kwargs)
+    return get_unpatched(msvc14_gen_lib_options)(*args, **kwargs)
+
+
+def _augment_exception(exc, version, arch=''):
+    """
+    Add details to the exception message to help guide the user
+    as to what action will resolve it.
+    """
+    # Error if MSVC++ directory not found or environment not set
+    message = exc.args[0]
+
+    if "vcvarsall" in message.lower() or "visual c" in message.lower():
+        # Special error message if MSVC++ not installed
+        tmpl = 'Microsoft Visual C++ {version:0.1f} is required.'
+        message = tmpl.format(**locals())
+        msdownload = 'www.microsoft.com/download/details.aspx?id=%d'
+        if version == 9.0:
+            if arch.lower().find('ia64') > -1:
+                # For VC++ 9.0, if IA64 support is needed, redirect user
+                # to Windows SDK 7.0
+                message += ' Get it with "Microsoft Windows SDK 7.0": '
+                message += msdownload % 3138
+            else:
+                # For VC++ 9.0 redirect user to Vc++ for Python 2.7 :
+                # This redirection link is maintained by Microsoft.
+                # Contact vspython@microsoft.com if it needs updating.
+                message += ' Get it from http://aka.ms/vcpython27'
+        elif version == 10.0:
+            # For VC++ 10.0 Redirect user to Windows SDK 7.1
+            message += ' Get it with "Microsoft Windows SDK 7.1": '
+            message += msdownload % 8279
+        elif version >= 14.0:
+            # For VC++ 14.0 Redirect user to Visual C++ Build Tools
+            message += (' Get it with "Microsoft Visual C++ Build Tools": '
+                        r'http://landinghub.visualstudio.com/'
+                        'visual-cpp-build-tools')
+
+    exc.args = (message, )
+
+
+class PlatformInfo:
+    """
+    Current and Target Architectures informations.
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    """
+    current_cpu = safe_env.get('processor_architecture', '').lower()
+
+    def __init__(self, arch):
+        self.arch = arch.lower().replace('x64', 'amd64')
+
+    @property
+    def target_cpu(self):
+        return self.arch[self.arch.find('_') + 1:]
+
+    def target_is_x86(self):
+        return self.target_cpu == 'x86'
+
+    def current_is_x86(self):
+        return self.current_cpu == 'x86'
+
+    def current_dir(self, hidex86=False, x64=False):
+        """
+        Current platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        subfolder: str
+            '\target', or '' (see hidex86 parameter)
+        """
+        return (
+            '' if (self.current_cpu == 'x86' and hidex86) else
+            r'\x64' if (self.current_cpu == 'amd64' and x64) else
+            r'\%s' % self.current_cpu
+        )
+
+    def target_dir(self, hidex86=False, x64=False):
+        r"""
+        Target platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        subfolder: str
+            '\current', or '' (see hidex86 parameter)
+        """
+        return (
+            '' if (self.target_cpu == 'x86' and hidex86) else
+            r'\x64' if (self.target_cpu == 'amd64' and x64) else
+            r'\%s' % self.target_cpu
+        )
+
+    def cross_dir(self, forcex86=False):
+        r"""
+        Cross platform specific subfolder.
+
+        Parameters
+        ----------
+        forcex86: bool
+            Use 'x86' as current architecture even if current acritecture is
+            not x86.
+
+        Return
+        ------
+        subfolder: str
+            '' if target architecture is current architecture,
+            '\current_target' if not.
+        """
+        current = 'x86' if forcex86 else self.current_cpu
+        return (
+            '' if self.target_cpu == current else
+            self.target_dir().replace('\\', '\\%s_' % current)
+        )
+
+
+class RegistryInfo:
+    """
+    Microsoft Visual Studio related registry informations.
+
+    Parameters
+    ----------
+    platform_info: PlatformInfo
+        "PlatformInfo" instance.
+    """
+    HKEYS = (winreg.HKEY_USERS,
+             winreg.HKEY_CURRENT_USER,
+             winreg.HKEY_LOCAL_MACHINE,
+             winreg.HKEY_CLASSES_ROOT)
+
+    def __init__(self, platform_info):
+        self.pi = platform_info
+
+    @property
+    def visualstudio(self):
+        """
+        Microsoft Visual Studio root registry key.
+        """
+        return 'VisualStudio'
+
+    @property
+    def sxs(self):
+        """
+        Microsoft Visual Studio SxS registry key.
+        """
+        return os.path.join(self.visualstudio, 'SxS')
+
+    @property
+    def vc(self):
+        """
+        Microsoft Visual C++ VC7 registry key.
+        """
+        return os.path.join(self.sxs, 'VC7')
+
+    @property
+    def vs(self):
+        """
+        Microsoft Visual Studio VS7 registry key.
+        """
+        return os.path.join(self.sxs, 'VS7')
+
+    @property
+    def vc_for_python(self):
+        """
+        Microsoft Visual C++ for Python registry key.
+        """
+        return r'DevDiv\VCForPython'
+
+    @property
+    def microsoft_sdk(self):
+        """
+        Microsoft SDK registry key.
+        """
+        return 'Microsoft SDKs'
+
+    @property
+    def windows_sdk(self):
+        """
+        Microsoft Windows/Platform SDK registry key.
+        """
+        return os.path.join(self.microsoft_sdk, 'Windows')
+
+    @property
+    def netfx_sdk(self):
+        """
+        Microsoft .NET Framework SDK registry key.
+        """
+        return os.path.join(self.microsoft_sdk, 'NETFXSDK')
+
+    @property
+    def windows_kits_roots(self):
+        """
+        Microsoft Windows Kits Roots registry key.
+        """
+        return r'Windows Kits\Installed Roots'
+
+    def microsoft(self, key, x86=False):
+        """
+        Return key in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        x86: str
+            Force x86 software registry.
+
+        Return
+        ------
+        str: value
+        """
+        node64 = '' if self.pi.current_is_x86() or x86 else 'Wow6432Node'
+        return os.path.join('Software', node64, 'Microsoft', key)
+
+    def lookup(self, key, name):
+        """
+        Look for values in registry in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        name: str
+            Value name to find.
+
+        Return
+        ------
+        str: value
+        """
+        KEY_READ = winreg.KEY_READ
+        openkey = winreg.OpenKey
+        ms = self.microsoft
+        for hkey in self.HKEYS:
+            try:
+                bkey = openkey(hkey, ms(key), 0, KEY_READ)
+            except (OSError, IOError):
+                if not self.pi.current_is_x86():
+                    try:
+                        bkey = openkey(hkey, ms(key, True), 0, KEY_READ)
+                    except (OSError, IOError):
+                        continue
+                else:
+                    continue
+            try:
+                return winreg.QueryValueEx(bkey, name)[0]
+            except (OSError, IOError):
+                pass
+
+
+class SystemInfo:
+    """
+    Microsoft Windows and Visual Studio related system inormations.
+
+    Parameters
+    ----------
+    registry_info: RegistryInfo
+        "RegistryInfo" instance.
+    vc_ver: float
+        Required Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparaison.
+    WinDir = safe_env.get('WinDir', '')
+    ProgramFiles = safe_env.get('ProgramFiles', '')
+    ProgramFilesx86 = safe_env.get('ProgramFiles(x86)', ProgramFiles)
+
+    def __init__(self, registry_info, vc_ver=None):
+        self.ri = registry_info
+        self.pi = self.ri.pi
+        self.vc_ver = vc_ver or self._find_latest_available_vc_ver()
+
+    def _find_latest_available_vc_ver(self):
+        try:
+            return self.find_available_vc_vers()[-1]
+        except IndexError:
+            err = 'No Microsoft Visual C++ version found'
+            raise distutils.errors.DistutilsPlatformError(err)
+
+    def find_available_vc_vers(self):
+        """
+        Find all available Microsoft Visual C++ versions.
+        """
+        ms = self.ri.microsoft
+        vckeys = (self.ri.vc, self.ri.vc_for_python, self.ri.vs)
+        vc_vers = []
+        for hkey in self.ri.HKEYS:
+            for key in vckeys:
+                try:
+                    bkey = winreg.OpenKey(hkey, ms(key), 0, winreg.KEY_READ)
+                except (OSError, IOError):
+                    continue
+                subkeys, values, _ = winreg.QueryInfoKey(bkey)
+                for i in range(values):
+                    try:
+                        ver = float(winreg.EnumValue(bkey, i)[0])
+                        if ver not in vc_vers:
+                            vc_vers.append(ver)
+                    except ValueError:
+                        pass
+                for i in range(subkeys):
+                    try:
+                        ver = float(winreg.EnumKey(bkey, i))
+                        if ver not in vc_vers:
+                            vc_vers.append(ver)
+                    except ValueError:
+                        pass
+        return sorted(vc_vers)
+
+    @property
+    def VSInstallDir(self):
+        """
+        Microsoft Visual Studio directory.
+        """
+        # Default path
+        name = 'Microsoft Visual Studio %0.1f' % self.vc_ver
+        default = os.path.join(self.ProgramFilesx86, name)
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vs, '%0.1f' % self.vc_ver) or default
+
+    @property
+    def VCInstallDir(self):
+        """
+        Microsoft Visual C++ directory.
+        """
+        self.VSInstallDir
+
+        guess_vc = self._guess_vc() or self._guess_vc_legacy()
+
+        # Try to get "VC++ for Python" path from registry as default path
+        reg_path = os.path.join(self.ri.vc_for_python, '%0.1f' % self.vc_ver)
+        python_vc = self.ri.lookup(reg_path, 'installdir')
+        default_vc = os.path.join(python_vc, 'VC') if python_vc else guess_vc
+
+        # Try to get path from registry, if fail use default path
+        path = self.ri.lookup(self.ri.vc, '%0.1f' % self.vc_ver) or default_vc
+
+        if not os.path.isdir(path):
+            msg = 'Microsoft Visual C++ directory not found'
+            raise distutils.errors.DistutilsPlatformError(msg)
+
+        return path
+
+    def _guess_vc(self):
+        """
+        Locate Visual C for 2017
+        """
+        if self.vc_ver <= 14.0:
+            return
+
+        default = r'VC\Tools\MSVC'
+        guess_vc = os.path.join(self.VSInstallDir, default)
+        # Subdir with VC exact version as name
+        try:
+            vc_exact_ver = os.listdir(guess_vc)[-1]
+            return os.path.join(guess_vc, vc_exact_ver)
+        except (OSError, IOError, IndexError):
+            pass
+
+    def _guess_vc_legacy(self):
+        """
+        Locate Visual C for versions prior to 2017
+        """
+        default = r'Microsoft Visual Studio %0.1f\VC' % self.vc_ver
+        return os.path.join(self.ProgramFilesx86, default)
+
+    @property
+    def WindowsSdkVersion(self):
+        """
+        Microsoft Windows SDK versions for specified MSVC++ version.
+        """
+        if self.vc_ver <= 9.0:
+            return ('7.0', '6.1', '6.0a')
+        elif self.vc_ver == 10.0:
+            return ('7.1', '7.0a')
+        elif self.vc_ver == 11.0:
+            return ('8.0', '8.0a')
+        elif self.vc_ver == 12.0:
+            return ('8.1', '8.1a')
+        elif self.vc_ver >= 14.0:
+            return ('10.0', '8.1')
+
+    @property
+    def WindowsSdkLastVersion(self):
+        """
+        Microsoft Windows SDK last version
+        """
+        return self._use_last_dir_name(os.path.join(
+            self.WindowsSdkDir, 'lib'))
+
+    @property
+    def WindowsSdkDir(self):
+        """
+        Microsoft Windows SDK directory.
+        """
+        sdkdir = ''
+        for ver in self.WindowsSdkVersion:
+            # Try to get it from registry
+            loc = os.path.join(self.ri.windows_sdk, 'v%s' % ver)
+            sdkdir = self.ri.lookup(loc, 'installationfolder')
+            if sdkdir:
+                break
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # Try to get "VC++ for Python" version from registry
+            path = os.path.join(self.ri.vc_for_python, '%0.1f' % self.vc_ver)
+            install_base = self.ri.lookup(path, 'installdir')
+            if install_base:
+                sdkdir = os.path.join(install_base, 'WinSDK')
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default new path
+            for ver in self.WindowsSdkVersion:
+                intver = ver[:ver.rfind('.')]
+                path = r'Microsoft SDKs\Windows Kits\%s' % (intver)
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default old path
+            for ver in self.WindowsSdkVersion:
+                path = r'Microsoft SDKs\Windows\v%s' % ver
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir:
+            # If fail, use Platform SDK
+            sdkdir = os.path.join(self.VCInstallDir, 'PlatformSDK')
+        return sdkdir
+
+    @property
+    def WindowsSDKExecutablePath(self):
+        """
+        Microsoft Windows SDK executable directory.
+        """
+        # Find WinSDK NetFx Tools registry dir name
+        if self.vc_ver <= 11.0:
+            netfxver = 35
+            arch = ''
+        else:
+            netfxver = 40
+            hidex86 = True if self.vc_ver <= 12.0 else False
+            arch = self.pi.current_dir(x64=True, hidex86=hidex86)
+        fx = 'WinSDK-NetFx%dTools%s' % (netfxver, arch.replace('\\', '-'))
+
+        # liste all possibles registry paths
+        regpaths = []
+        if self.vc_ver >= 14.0:
+            for ver in self.NetFxSdkVersion:
+                regpaths += [os.path.join(self.ri.netfx_sdk, ver, fx)]
+
+        for ver in self.WindowsSdkVersion:
+            regpaths += [os.path.join(self.ri.windows_sdk, 'v%sA' % ver, fx)]
+
+        # Return installation folder from the more recent path
+        for path in regpaths:
+            execpath = self.ri.lookup(path, 'installationfolder')
+            if execpath:
+                break
+        return execpath
+
+    @property
+    def FSharpInstallDir(self):
+        """
+        Microsoft Visual F# directory.
+        """
+        path = r'%0.1f\Setup\F#' % self.vc_ver
+        path = os.path.join(self.ri.visualstudio, path)
+        return self.ri.lookup(path, 'productdir') or ''
+
+    @property
+    def UniversalCRTSdkDir(self):
+        """
+        Microsoft Universal CRT SDK directory.
+        """
+        # Set Kit Roots versions for specified MSVC++ version
+        if self.vc_ver >= 14.0:
+            vers = ('10', '81')
+        else:
+            vers = ()
+
+        # Find path of the more recent Kit
+        for ver in vers:
+            sdkdir = self.ri.lookup(self.ri.windows_kits_roots,
+                                    'kitsroot%s' % ver)
+            if sdkdir:
+                break
+        return sdkdir or ''
+
+    @property
+    def UniversalCRTSdkLastVersion(self):
+        """
+        Microsoft Universal C Runtime SDK last version
+        """
+        return self._use_last_dir_name(os.path.join(
+            self.UniversalCRTSdkDir, 'lib'))
+
+    @property
+    def NetFxSdkVersion(self):
+        """
+        Microsoft .NET Framework SDK versions.
+        """
+        # Set FxSdk versions for specified MSVC++ version
+        if self.vc_ver >= 14.0:
+            return ('4.6.1', '4.6')
+        else:
+            return ()
+
+    @property
+    def NetFxSdkDir(self):
+        """
+        Microsoft .NET Framework SDK directory.
+        """
+        for ver in self.NetFxSdkVersion:
+            loc = os.path.join(self.ri.netfx_sdk, ver)
+            sdkdir = self.ri.lookup(loc, 'kitsinstallationfolder')
+            if sdkdir:
+                break
+        return sdkdir or ''
+
+    @property
+    def FrameworkDir32(self):
+        """
+        Microsoft .NET Framework 32bit directory.
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir32') or guess_fw
+
+    @property
+    def FrameworkDir64(self):
+        """
+        Microsoft .NET Framework 64bit directory.
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework64')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir64') or guess_fw
+
+    @property
+    def FrameworkVersion32(self):
+        """
+        Microsoft .NET Framework 32bit versions.
+        """
+        return self._find_dot_net_versions(32)
+
+    @property
+    def FrameworkVersion64(self):
+        """
+        Microsoft .NET Framework 64bit versions.
+        """
+        return self._find_dot_net_versions(64)
+
+    def _find_dot_net_versions(self, bits):
+        """
+        Find Microsoft .NET Framework versions.
+
+        Parameters
+        ----------
+        bits: int
+            Platform number of bits: 32 or 64.
+        """
+        # Find actual .NET version in registry
+        reg_ver = self.ri.lookup(self.ri.vc, 'frameworkver%d' % bits)
+        dot_net_dir = getattr(self, 'FrameworkDir%d' % bits)
+        ver = reg_ver or self._use_last_dir_name(dot_net_dir, 'v') or ''
+
+        # Set .NET versions for specified MSVC++ version
+        if self.vc_ver >= 12.0:
+            frameworkver = (ver, 'v4.0')
+        elif self.vc_ver >= 10.0:
+            frameworkver = ('v4.0.30319' if ver.lower()[:2] != 'v4' else ver,
+                            'v3.5')
+        elif self.vc_ver == 9.0:
+            frameworkver = ('v3.5', 'v2.0.50727')
+        if self.vc_ver == 8.0:
+            frameworkver = ('v3.0', 'v2.0.50727')
+        return frameworkver
+
+    def _use_last_dir_name(self, path, prefix=''):
+        """
+        Return name of the last dir in path or '' if no dir found.
+
+        Parameters
+        ----------
+        path: str
+            Use dirs in this path
+        prefix: str
+            Use only dirs startings by this prefix
+        """
+        matching_dirs = (
+            dir_name
+            for dir_name in reversed(os.listdir(path))
+            if os.path.isdir(os.path.join(path, dir_name)) and
+            dir_name.startswith(prefix)
+        )
+        return next(matching_dirs, None) or ''
+
+
+class EnvironmentInfo:
+    """
+    Return environment variables for specified Microsoft Visual C++ version
+    and platform : Lib, Include, Path and libpath.
+
+    This function is compatible with Microsoft Visual C++ 9.0 to 14.0.
+
+    Script created by analysing Microsoft environment configuration files like
+    "vcvars[...].bat", "SetEnv.Cmd", "vcbuildtools.bat", ...
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    vc_ver: float
+        Required Microsoft Visual C++ version. If not set, autodetect the last
+        version.
+    vc_min_ver: float
+        Minimum Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparaison.
+
+    def __init__(self, arch, vc_ver=None, vc_min_ver=0):
+        self.pi = PlatformInfo(arch)
+        self.ri = RegistryInfo(self.pi)
+        self.si = SystemInfo(self.ri, vc_ver)
+
+        if self.vc_ver < vc_min_ver:
+            err = 'No suitable Microsoft Visual C++ version found'
+            raise distutils.errors.DistutilsPlatformError(err)
+
+    @property
+    def vc_ver(self):
+        """
+        Microsoft Visual C++ version.
+        """
+        return self.si.vc_ver
+
+    @property
+    def VSTools(self):
+        """
+        Microsoft Visual Studio Tools
+        """
+        paths = [r'Common7\IDE', r'Common7\Tools']
+
+        if self.vc_ver >= 14.0:
+            arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            paths += [r'Common7\IDE\CommonExtensions\Microsoft\TestWindow']
+            paths += [r'Team Tools\Performance Tools']
+            paths += [r'Team Tools\Performance Tools%s' % arch_subdir]
+
+        return [os.path.join(self.si.VSInstallDir, path) for path in paths]
+
+    @property
+    def VCIncludes(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Includes
+        """
+        return [os.path.join(self.si.VCInstallDir, 'Include'),
+                os.path.join(self.si.VCInstallDir, r'ATLMFC\Include')]
+
+    @property
+    def VCLibraries(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Libraries
+        """
+        if self.vc_ver >= 15.0:
+            arch_subdir = self.pi.target_dir(x64=True)
+        else:
+            arch_subdir = self.pi.target_dir(hidex86=True)
+        paths = ['Lib%s' % arch_subdir, r'ATLMFC\Lib%s' % arch_subdir]
+
+        if self.vc_ver >= 14.0:
+            paths += [r'Lib\store%s' % arch_subdir]
+
+        return [os.path.join(self.si.VCInstallDir, path) for path in paths]
+
+    @property
+    def VCStoreRefs(self):
+        """
+        Microsoft Visual C++ store references Libraries
+        """
+        if self.vc_ver < 14.0:
+            return []
+        return [os.path.join(self.si.VCInstallDir, r'Lib\store\references')]
+
+    @property
+    def VCTools(self):
+        """
+        Microsoft Visual C++ Tools
+        """
+        si = self.si
+        tools = [os.path.join(si.VCInstallDir, 'VCPackages')]
+
+        forcex86 = True if self.vc_ver <= 10.0 else False
+        arch_subdir = self.pi.cross_dir(forcex86)
+        if arch_subdir:
+            tools += [os.path.join(si.VCInstallDir, 'Bin%s' % arch_subdir)]
+
+        if self.vc_ver == 14.0:
+            path = 'Bin%s' % self.pi.current_dir(hidex86=True)
+            tools += [os.path.join(si.VCInstallDir, path)]
+
+        elif self.vc_ver >= 15.0:
+            host_dir = (r'bin\HostX86%s' if self.pi.current_is_x86() else
+                        r'bin\HostX64%s')
+            tools += [os.path.join(
+                si.VCInstallDir, host_dir % self.pi.target_dir(x64=True))]
+
+            if self.pi.current_cpu != self.pi.target_cpu:
+                tools += [os.path.join(
+                    si.VCInstallDir, host_dir % self.pi.current_dir(x64=True))]
+
+        else:
+            tools += [os.path.join(si.VCInstallDir, 'Bin')]
+
+        return tools
+
+    @property
+    def OSLibraries(self):
+        """
+        Microsoft Windows SDK Libraries
+        """
+        if self.vc_ver <= 10.0:
+            arch_subdir = self.pi.target_dir(hidex86=True, x64=True)
+            return [os.path.join(self.si.WindowsSdkDir, 'Lib%s' % arch_subdir)]
+
+        else:
+            arch_subdir = self.pi.target_dir(x64=True)
+            lib = os.path.join(self.si.WindowsSdkDir, 'lib')
+            libver = self._sdk_subdir
+            return [os.path.join(lib, '%sum%s' % (libver , arch_subdir))]
+
+    @property
+    def OSIncludes(self):
+        """
+        Microsoft Windows SDK Include
+        """
+        include = os.path.join(self.si.WindowsSdkDir, 'include')
+
+        if self.vc_ver <= 10.0:
+            return [include, os.path.join(include, 'gl')]
+
+        else:
+            if self.vc_ver >= 14.0:
+                sdkver = self._sdk_subdir
+            else:
+                sdkver = ''
+            return [os.path.join(include, '%sshared' % sdkver),
+                    os.path.join(include, '%sum' % sdkver),
+                    os.path.join(include, '%swinrt' % sdkver)]
+
+    @property
+    def OSLibpath(self):
+        """
+        Microsoft Windows SDK Libraries Paths
+        """
+        ref = os.path.join(self.si.WindowsSdkDir, 'References')
+        libpath = []
+
+        if self.vc_ver <= 9.0:
+            libpath += self.OSLibraries
+
+        if self.vc_ver >= 11.0:
+            libpath += [os.path.join(ref, r'CommonConfiguration\Neutral')]
+
+        if self.vc_ver >= 14.0:
+            libpath += [
+                ref,
+                os.path.join(self.si.WindowsSdkDir, 'UnionMetadata'),
+                os.path.join(
+                    ref,
+                    'Windows.Foundation.UniversalApiContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    ref,
+                    'Windows.Foundation.FoundationContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    ref,
+                    'Windows.Networking.Connectivity.WwanContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    self.si.WindowsSdkDir,
+                    'ExtensionSDKs',
+                    'Microsoft.VCLibs',
+                    '%0.1f' % self.vc_ver,
+                    'References',
+                    'CommonConfiguration',
+                    'neutral',
+                ),
+            ]
+        return libpath
+
+    @property
+    def SdkTools(self):
+        """
+        Microsoft Windows SDK Tools
+        """
+        return list(self._sdk_tools())
+
+    def _sdk_tools(self):
+        """
+        Microsoft Windows SDK Tools paths generator
+        """
+        if self.vc_ver < 15.0:
+            bin_dir = 'Bin' if self.vc_ver <= 11.0 else r'Bin\x86'
+            yield os.path.join(self.si.WindowsSdkDir, bin_dir)
+
+        if not self.pi.current_is_x86():
+            arch_subdir = self.pi.current_dir(x64=True)
+            path = 'Bin%s' % arch_subdir
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        if self.vc_ver == 10.0 or self.vc_ver == 11.0:
+            if self.pi.target_is_x86():
+                arch_subdir = ''
+            else:
+                arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            path = r'Bin\NETFX 4.0 Tools%s' % arch_subdir
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        elif self.vc_ver >= 15.0:
+            path = os.path.join(self.si.WindowsSdkDir, 'Bin')
+            arch_subdir = self.pi.current_dir(x64=True)
+            sdkver = self.si.WindowsSdkLastVersion
+            yield os.path.join(path, '%s%s' % (sdkver, arch_subdir))
+
+        if self.si.WindowsSDKExecutablePath:
+            yield self.si.WindowsSDKExecutablePath
+
+    @property
+    def _sdk_subdir(self):
+        """
+        Microsoft Windows SDK version subdir
+        """
+        ucrtver = self.si.WindowsSdkLastVersion
+        return ('%s\\' % ucrtver) if ucrtver else ''
+
+    @property
+    def SdkSetup(self):
+        """
+        Microsoft Windows SDK Setup
+        """
+        if self.vc_ver > 9.0:
+            return []
+
+        return [os.path.join(self.si.WindowsSdkDir, 'Setup')]
+
+    @property
+    def FxTools(self):
+        """
+        Microsoft .NET Framework Tools
+        """
+        pi = self.pi
+        si = self.si
+
+        if self.vc_ver <= 10.0:
+            include32 = True
+            include64 = not pi.target_is_x86() and not pi.current_is_x86()
+        else:
+            include32 = pi.target_is_x86() or pi.current_is_x86()
+            include64 = pi.current_cpu == 'amd64' or pi.target_cpu == 'amd64'
+
+        tools = []
+        if include32:
+            tools += [os.path.join(si.FrameworkDir32, ver)
+                      for ver in si.FrameworkVersion32]
+        if include64:
+            tools += [os.path.join(si.FrameworkDir64, ver)
+                      for ver in si.FrameworkVersion64]
+        return tools
+
+    @property
+    def NetFxSDKLibraries(self):
+        """
+        Microsoft .Net Framework SDK Libraries
+        """
+        if self.vc_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        return [os.path.join(self.si.NetFxSdkDir, r'lib\um%s' % arch_subdir)]
+
+    @property
+    def NetFxSDKIncludes(self):
+        """
+        Microsoft .Net Framework SDK Includes
+        """
+        if self.vc_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        return [os.path.join(self.si.NetFxSdkDir, r'include\um')]
+
+    @property
+    def VsTDb(self):
+        """
+        Microsoft Visual Studio Team System Database
+        """
+        return [os.path.join(self.si.VSInstallDir, r'VSTSDB\Deploy')]
+
+    @property
+    def MSBuild(self):
+        """
+        Microsoft Build Engine
+        """
+        if self.vc_ver < 12.0:
+            return []
+        elif self.vc_ver < 15.0:
+            base_path = self.si.ProgramFilesx86
+            arch_subdir = self.pi.current_dir(hidex86=True)
+        else:
+            base_path = self.si.VSInstallDir
+            arch_subdir = ''
+
+        path = r'MSBuild\%0.1f\bin%s' % (self.vc_ver, arch_subdir)
+        build = [os.path.join(base_path, path)]
+
+        if self.vc_ver >= 15.0:
+            # Add Roslyn C# & Visual Basic Compiler
+            build += [os.path.join(base_path, path, 'Roslyn')]
+
+        return build
+
+    @property
+    def HTMLHelpWorkshop(self):
+        """
+        Microsoft HTML Help Workshop
+        """
+        if self.vc_ver < 11.0:
+            return []
+
+        return [os.path.join(self.si.ProgramFilesx86, 'HTML Help Workshop')]
+
+    @property
+    def UCRTLibraries(self):
+        """
+        Microsoft Universal C Runtime SDK Libraries
+        """
+        if self.vc_ver < 14.0:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        lib = os.path.join(self.si.UniversalCRTSdkDir, 'lib')
+        ucrtver = self._ucrt_subdir
+        return [os.path.join(lib, '%sucrt%s' % (ucrtver, arch_subdir))]
+
+    @property
+    def UCRTIncludes(self):
+        """
+        Microsoft Universal C Runtime SDK Include
+        """
+        if self.vc_ver < 14.0:
+            return []
+
+        include = os.path.join(self.si.UniversalCRTSdkDir, 'include')
+        return [os.path.join(include, '%sucrt' % self._ucrt_subdir)]
+
+    @property
+    def _ucrt_subdir(self):
+        """
+        Microsoft Universal C Runtime SDK version subdir
+        """
+        ucrtver = self.si.UniversalCRTSdkLastVersion
+        return ('%s\\' % ucrtver) if ucrtver else ''
+
+    @property
+    def FSharp(self):
+        """
+        Microsoft Visual F#
+        """
+        if self.vc_ver < 11.0 and self.vc_ver > 12.0:
+            return []
+
+        return self.si.FSharpInstallDir
+
+    @property
+    def VCRuntimeRedist(self):
+        """
+        Microsoft Visual C++ runtime redistribuable dll
+        """
+        arch_subdir = self.pi.target_dir(x64=True)
+        if self.vc_ver < 15:
+            redist_path = self.si.VCInstallDir
+            vcruntime = 'redist%s\\Microsoft.VC%d0.CRT\\vcruntime%d0.dll'
+        else:
+            redist_path = self.si.VCInstallDir.replace('\\Tools', '\\Redist')
+            vcruntime = 'onecore%s\\Microsoft.VC%d0.CRT\\vcruntime%d0.dll'
+
+        # Visual Studio 2017  is still Visual C++ 14.0
+        dll_ver = 14.0 if self.vc_ver == 15 else self.vc_ver
+
+        vcruntime = vcruntime % (arch_subdir, self.vc_ver, dll_ver)
+        return os.path.join(redist_path, vcruntime)
+
+    def return_env(self, exists=True):
+        """
+        Return environment dict.
+
+        Parameters
+        ----------
+        exists: bool
+            It True, only return existing paths.
+        """
+        env = dict(
+            include=self._build_paths('include',
+                                      [self.VCIncludes,
+                                       self.OSIncludes,
+                                       self.UCRTIncludes,
+                                       self.NetFxSDKIncludes],
+                                      exists),
+            lib=self._build_paths('lib',
+                                  [self.VCLibraries,
+                                   self.OSLibraries,
+                                   self.FxTools,
+                                   self.UCRTLibraries,
+                                   self.NetFxSDKLibraries],
+                                  exists),
+            libpath=self._build_paths('libpath',
+                                      [self.VCLibraries,
+                                       self.FxTools,
+                                       self.VCStoreRefs,
+                                       self.OSLibpath],
+                                      exists),
+            path=self._build_paths('path',
+                                   [self.VCTools,
+                                    self.VSTools,
+                                    self.VsTDb,
+                                    self.SdkTools,
+                                    self.SdkSetup,
+                                    self.FxTools,
+                                    self.MSBuild,
+                                    self.HTMLHelpWorkshop,
+                                    self.FSharp],
+                                   exists),
+        )
+        if self.vc_ver >= 14 and os.path.isfile(self.VCRuntimeRedist):
+            env['py_vcruntime_redist'] = self.VCRuntimeRedist
+        return env
+
+    def _build_paths(self, name, spec_path_lists, exists):
+        """
+        Given an environment variable name and specified paths,
+        return a pathsep-separated string of paths containing
+        unique, extant, directories from those paths and from
+        the environment variable. Raise an error if no paths
+        are resolved.
+        """
+        # flatten spec_path_lists
+        spec_paths = itertools.chain.from_iterable(spec_path_lists)
+        env_paths = safe_env.get(name, '').split(os.pathsep)
+        paths = itertools.chain(spec_paths, env_paths)
+        extant_paths = list(filter(os.path.isdir, paths)) if exists else paths
+        if not extant_paths:
+            msg = "%s environment variable is empty" % name.upper()
+            raise distutils.errors.DistutilsPlatformError(msg)
+        unique_paths = self._unique_everseen(extant_paths)
+        return os.pathsep.join(unique_paths)
+
+    # from Python docs
+    def _unique_everseen(self, iterable, key=None):
+        """
+        List unique elements, preserving order.
+        Remember all elements ever seen.
+
+        _unique_everseen('AAAABBBCCDAABBB') --> A B C D
+
+        _unique_everseen('ABBCcAD', str.lower) --> A B C D
+        """
+        seen = set()
+        seen_add = seen.add
+        if key is None:
+            for element in filterfalse(seen.__contains__, iterable):
+                seen_add(element)
+                yield element
+        else:
+            for element in iterable:
+                k = key(element)
+                if k not in seen:
+                    seen_add(k)
+                    yield element
diff --git a/venv/lib/python3.5/site-packages/setuptools/namespaces.py b/venv/lib/python3.5/site-packages/setuptools/namespaces.py
new file mode 100644
index 0000000..dc16106
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/namespaces.py
@@ -0,0 +1,107 @@
+import os
+from distutils import log
+import itertools
+
+from setuptools.extern.six.moves import map
+
+
+flatten = itertools.chain.from_iterable
+
+
+class Installer:
+
+    nspkg_ext = '-nspkg.pth'
+
+    def install_namespaces(self):
+        nsp = self._get_all_ns_packages()
+        if not nsp:
+            return
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
+        self.outputs.append(filename)
+        log.info("Installing %s", filename)
+        lines = map(self._gen_nspkg_line, nsp)
+
+        if self.dry_run:
+            # always generate the lines, even in dry run
+            list(lines)
+            return
+
+        with open(filename, 'wt') as f:
+            f.writelines(lines)
+
+    def uninstall_namespaces(self):
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
+        if not os.path.exists(filename):
+            return
+        log.info("Removing %s", filename)
+        os.remove(filename)
+
+    def _get_target(self):
+        return self.target
+
+    _nspkg_tmpl = (
+        "import sys, types, os",
+        "has_mfs = sys.version_info > (3, 5)",
+        "p = os.path.join(%(root)s, *%(pth)r)",
+        "importlib = has_mfs and __import__('importlib.util')",
+        "has_mfs and __import__('importlib.machinery')",
+        "m = has_mfs and "
+            "sys.modules.setdefault(%(pkg)r, "
+                "importlib.util.module_from_spec("
+                    "importlib.machinery.PathFinder.find_spec(%(pkg)r, "
+                        "[os.path.dirname(p)])))",
+        "m = m or "
+            "sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))",
+        "mp = (m or []) and m.__dict__.setdefault('__path__',[])",
+        "(p not in mp) and mp.append(p)",
+    )
+    "lines for the namespace installer"
+
+    _nspkg_tmpl_multi = (
+        'm and setattr(sys.modules[%(parent)r], %(child)r, m)',
+    )
+    "additional line(s) when a parent package is indicated"
+
+    def _get_root(self):
+        return "sys._getframe(1).f_locals['sitedir']"
+
+    def _gen_nspkg_line(self, pkg):
+        # ensure pkg is not a unicode string under Python 2.7
+        pkg = str(pkg)
+        pth = tuple(pkg.split('.'))
+        root = self._get_root()
+        tmpl_lines = self._nspkg_tmpl
+        parent, sep, child = pkg.rpartition('.')
+        if parent:
+            tmpl_lines += self._nspkg_tmpl_multi
+        return ';'.join(tmpl_lines) % locals() + '\n'
+
+    def _get_all_ns_packages(self):
+        """Return sorted list of all package namespaces"""
+        pkgs = self.distribution.namespace_packages or []
+        return sorted(flatten(map(self._pkg_names, pkgs)))
+
+    @staticmethod
+    def _pkg_names(pkg):
+        """
+        Given a namespace package, yield the components of that
+        package.
+
+        >>> names = Installer._pkg_names('a.b.c')
+        >>> set(names) == set(['a', 'a.b', 'a.b.c'])
+        True
+        """
+        parts = pkg.split('.')
+        while parts:
+            yield '.'.join(parts)
+            parts.pop()
+
+
+class DevelopInstaller(Installer):
+    def _get_root(self):
+        return repr(str(self.egg_path))
+
+    def _get_target(self):
+        return self.egg_link
diff --git a/venv/lib/python3.5/site-packages/setuptools/package_index.py b/venv/lib/python3.5/site-packages/setuptools/package_index.py
new file mode 100644
index 0000000..ad74330
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/package_index.py
@@ -0,0 +1,1137 @@
+"""PyPI and direct package downloading"""
+import sys
+import os
+import re
+import shutil
+import socket
+import base64
+import hashlib
+import itertools
+from functools import wraps
+
+try:
+    from urllib.parse import splituser
+except ImportError:
+    from urllib2 import splituser
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import urllib, http_client, configparser, map
+
+import setuptools
+from pkg_resources import (
+    CHECKOUT_DIST, Distribution, BINARY_DIST, normalize_path, SOURCE_DIST,
+    Environment, find_distributions, safe_name, safe_version,
+    to_filename, Requirement, DEVELOP_DIST, EGG_DIST,
+)
+from setuptools import ssl_support
+from distutils import log
+from distutils.errors import DistutilsError
+from fnmatch import translate
+from setuptools.py27compat import get_all_headers
+from setuptools.wheel import Wheel
+
+EGG_FRAGMENT = re.compile(r'^egg=([-A-Za-z0-9_.+!]+)$')
+HREF = re.compile("""href\\s*=\\s*['"]?([^'"> ]+)""", re.I)
+# this is here to fix emacs' cruddy broken syntax highlighting
+PYPI_MD5 = re.compile(
+    '<a href="([^"#]+)">([^<]+)</a>\n\\s+\\(<a (?:title="MD5 hash"\n\\s+)'
+    'href="[^?]+\\?:action=show_md5&digest=([0-9a-f]{32})">md5</a>\\)'
+)
+URL_SCHEME = re.compile('([-+.a-z0-9]{2,}):', re.I).match
+EXTENSIONS = ".tar.gz .tar.bz2 .tar .zip .tgz".split()
+
+__all__ = [
+    'PackageIndex', 'distros_for_url', 'parse_bdist_wininst',
+    'interpret_distro_name',
+]
+
+_SOCKET_TIMEOUT = 15
+
+_tmpl = "setuptools/{setuptools.__version__} Python-urllib/{py_major}"
+user_agent = _tmpl.format(py_major=sys.version[:3], setuptools=setuptools)
+
+
+def parse_requirement_arg(spec):
+    try:
+        return Requirement.parse(spec)
+    except ValueError:
+        raise DistutilsError(
+            "Not a URL, existing file, or requirement spec: %r" % (spec,)
+        )
+
+
+def parse_bdist_wininst(name):
+    """Return (base,pyversion) or (None,None) for possible .exe name"""
+
+    lower = name.lower()
+    base, py_ver, plat = None, None, None
+
+    if lower.endswith('.exe'):
+        if lower.endswith('.win32.exe'):
+            base = name[:-10]
+            plat = 'win32'
+        elif lower.startswith('.win32-py', -16):
+            py_ver = name[-7:-4]
+            base = name[:-16]
+            plat = 'win32'
+        elif lower.endswith('.win-amd64.exe'):
+            base = name[:-14]
+            plat = 'win-amd64'
+        elif lower.startswith('.win-amd64-py', -20):
+            py_ver = name[-7:-4]
+            base = name[:-20]
+            plat = 'win-amd64'
+    return base, py_ver, plat
+
+
+def egg_info_for_url(url):
+    parts = urllib.parse.urlparse(url)
+    scheme, server, path, parameters, query, fragment = parts
+    base = urllib.parse.unquote(path.split('/')[-1])
+    if server == 'sourceforge.net' and base == 'download':  # XXX Yuck
+        base = urllib.parse.unquote(path.split('/')[-2])
+    if '#' in base:
+        base, fragment = base.split('#', 1)
+    return base, fragment
+
+
+def distros_for_url(url, metadata=None):
+    """Yield egg or source distribution objects that might be found at a URL"""
+    base, fragment = egg_info_for_url(url)
+    for dist in distros_for_location(url, base, metadata):
+        yield dist
+    if fragment:
+        match = EGG_FRAGMENT.match(fragment)
+        if match:
+            for dist in interpret_distro_name(
+                url, match.group(1), metadata, precedence=CHECKOUT_DIST
+            ):
+                yield dist
+
+
+def distros_for_location(location, basename, metadata=None):
+    """Yield egg or source distribution objects based on basename"""
+    if basename.endswith('.egg.zip'):
+        basename = basename[:-4]  # strip the .zip
+    if basename.endswith('.egg') and '-' in basename:
+        # only one, unambiguous interpretation
+        return [Distribution.from_location(location, basename, metadata)]
+    if basename.endswith('.whl') and '-' in basename:
+        wheel = Wheel(basename)
+        if not wheel.is_compatible():
+            return []
+        return [Distribution(
+            location=location,
+            project_name=wheel.project_name,
+            version=wheel.version,
+            # Increase priority over eggs.
+            precedence=EGG_DIST + 1,
+        )]
+    if basename.endswith('.exe'):
+        win_base, py_ver, platform = parse_bdist_wininst(basename)
+        if win_base is not None:
+            return interpret_distro_name(
+                location, win_base, metadata, py_ver, BINARY_DIST, platform
+            )
+    # Try source distro extensions (.zip, .tgz, etc.)
+    #
+    for ext in EXTENSIONS:
+        if basename.endswith(ext):
+            basename = basename[:-len(ext)]
+            return interpret_distro_name(location, basename, metadata)
+    return []  # no extension matched
+
+
+def distros_for_filename(filename, metadata=None):
+    """Yield possible egg or source distribution objects based on a filename"""
+    return distros_for_location(
+        normalize_path(filename), os.path.basename(filename), metadata
+    )
+
+
+def interpret_distro_name(
+        location, basename, metadata, py_version=None, precedence=SOURCE_DIST,
+        platform=None
+):
+    """Generate alternative interpretations of a source distro name
+
+    Note: if `location` is a filesystem filename, you should call
+    ``pkg_resources.normalize_path()`` on it before passing it to this
+    routine!
+    """
+    # Generate alternative interpretations of a source distro name
+    # Because some packages are ambiguous as to name/versions split
+    # e.g. "adns-python-1.1.0", "egenix-mx-commercial", etc.
+    # So, we generate each possible interepretation (e.g. "adns, python-1.1.0"
+    # "adns-python, 1.1.0", and "adns-python-1.1.0, no version").  In practice,
+    # the spurious interpretations should be ignored, because in the event
+    # there's also an "adns" package, the spurious "python-1.1.0" version will
+    # compare lower than any numeric version number, and is therefore unlikely
+    # to match a request for it.  It's still a potential problem, though, and
+    # in the long run PyPI and the distutils should go for "safe" names and
+    # versions in distribution archive names (sdist and bdist).
+
+    parts = basename.split('-')
+    if not py_version and any(re.match(r'py\d\.\d$', p) for p in parts[2:]):
+        # it is a bdist_dumb, not an sdist -- bail out
+        return
+
+    for p in range(1, len(parts) + 1):
+        yield Distribution(
+            location, metadata, '-'.join(parts[:p]), '-'.join(parts[p:]),
+            py_version=py_version, precedence=precedence,
+            platform=platform
+        )
+
+
+# From Python 2.7 docs
+def unique_everseen(iterable, key=None):
+    "List unique elements, preserving order. Remember all elements ever seen."
+    # unique_everseen('AAAABBBCCDAABBB') --> A B C D
+    # unique_everseen('ABBCcAD', str.lower) --> A B C D
+    seen = set()
+    seen_add = seen.add
+    if key is None:
+        for element in six.moves.filterfalse(seen.__contains__, iterable):
+            seen_add(element)
+            yield element
+    else:
+        for element in iterable:
+            k = key(element)
+            if k not in seen:
+                seen_add(k)
+                yield element
+
+
+def unique_values(func):
+    """
+    Wrap a function returning an iterable such that the resulting iterable
+    only ever yields unique items.
+    """
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        return unique_everseen(func(*args, **kwargs))
+
+    return wrapper
+
+
+REL = re.compile(r"""<([^>]*\srel\s*=\s*['"]?([^'">]+)[^>]*)>""", re.I)
+# this line is here to fix emacs' cruddy broken syntax highlighting
+
+
+@unique_values
+def find_external_links(url, page):
+    """Find rel="homepage" and rel="download" links in `page`, yielding URLs"""
+
+    for match in REL.finditer(page):
+        tag, rel = match.groups()
+        rels = set(map(str.strip, rel.lower().split(',')))
+        if 'homepage' in rels or 'download' in rels:
+            for match in HREF.finditer(tag):
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
+
+    for tag in ("<th>Home Page", "<th>Download URL"):
+        pos = page.find(tag)
+        if pos != -1:
+            match = HREF.search(page, pos)
+            if match:
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
+
+
+class ContentChecker(object):
+    """
+    A null content checker that defines the interface for checking content
+    """
+
+    def feed(self, block):
+        """
+        Feed a block of data to the hash.
+        """
+        return
+
+    def is_valid(self):
+        """
+        Check the hash. Return False if validation fails.
+        """
+        return True
+
+    def report(self, reporter, template):
+        """
+        Call reporter with information about the checker (hash name)
+        substituted into the template.
+        """
+        return
+
+
+class HashChecker(ContentChecker):
+    pattern = re.compile(
+        r'(?P<hash_name>sha1|sha224|sha384|sha256|sha512|md5)='
+        r'(?P<expected>[a-f0-9]+)'
+    )
+
+    def __init__(self, hash_name, expected):
+        self.hash_name = hash_name
+        self.hash = hashlib.new(hash_name)
+        self.expected = expected
+
+    @classmethod
+    def from_url(cls, url):
+        "Construct a (possibly null) ContentChecker from a URL"
+        fragment = urllib.parse.urlparse(url)[-1]
+        if not fragment:
+            return ContentChecker()
+        match = cls.pattern.search(fragment)
+        if not match:
+            return ContentChecker()
+        return cls(**match.groupdict())
+
+    def feed(self, block):
+        self.hash.update(block)
+
+    def is_valid(self):
+        return self.hash.hexdigest() == self.expected
+
+    def report(self, reporter, template):
+        msg = template % self.hash_name
+        return reporter(msg)
+
+
+class PackageIndex(Environment):
+    """A distribution index that scans web pages for download URLs"""
+
+    def __init__(
+            self, index_url="https://pypi.python.org/simple", hosts=('*',),
+            ca_bundle=None, verify_ssl=True, *args, **kw
+    ):
+        Environment.__init__(self, *args, **kw)
+        self.index_url = index_url + "/" [:not index_url.endswith('/')]
+        self.scanned_urls = {}
+        self.fetched_urls = {}
+        self.package_pages = {}
+        self.allows = re.compile('|'.join(map(translate, hosts))).match
+        self.to_scan = []
+        use_ssl = (
+            verify_ssl
+            and ssl_support.is_available
+            and (ca_bundle or ssl_support.find_ca_bundle())
+        )
+        if use_ssl:
+            self.opener = ssl_support.opener_for(ca_bundle)
+        else:
+            self.opener = urllib.request.urlopen
+
+    def process_url(self, url, retrieve=False):
+        """Evaluate a URL as a possible download, and maybe retrieve it"""
+        if url in self.scanned_urls and not retrieve:
+            return
+        self.scanned_urls[url] = True
+        if not URL_SCHEME(url):
+            self.process_filename(url)
+            return
+        else:
+            dists = list(distros_for_url(url))
+            if dists:
+                if not self.url_ok(url):
+                    return
+                self.debug("Found link: %s", url)
+
+        if dists or not retrieve or url in self.fetched_urls:
+            list(map(self.add, dists))
+            return  # don't need the actual page
+
+        if not self.url_ok(url):
+            self.fetched_urls[url] = True
+            return
+
+        self.info("Reading %s", url)
+        self.fetched_urls[url] = True  # prevent multiple fetch attempts
+        tmpl = "Download error on %s: %%s -- Some packages may not be found!"
+        f = self.open_url(url, tmpl % url)
+        if f is None:
+            return
+        self.fetched_urls[f.url] = True
+        if 'html' not in f.headers.get('content-type', '').lower():
+            f.close()  # not html, we can't process it
+            return
+
+        base = f.url  # handle redirects
+        page = f.read()
+        if not isinstance(page, str):
+            # In Python 3 and got bytes but want str.
+            if isinstance(f, urllib.error.HTTPError):
+                # Errors have no charset, assume latin1:
+                charset = 'latin-1'
+            else:
+                charset = f.headers.get_param('charset') or 'latin-1'
+            page = page.decode(charset, "ignore")
+        f.close()
+        for match in HREF.finditer(page):
+            link = urllib.parse.urljoin(base, htmldecode(match.group(1)))
+            self.process_url(link)
+        if url.startswith(self.index_url) and getattr(f, 'code', None) != 404:
+            page = self.process_index(url, page)
+
+    def process_filename(self, fn, nested=False):
+        # process filenames or directories
+        if not os.path.exists(fn):
+            self.warn("Not found: %s", fn)
+            return
+
+        if os.path.isdir(fn) and not nested:
+            path = os.path.realpath(fn)
+            for item in os.listdir(path):
+                self.process_filename(os.path.join(path, item), True)
+
+        dists = distros_for_filename(fn)
+        if dists:
+            self.debug("Found: %s", fn)
+            list(map(self.add, dists))
+
+    def url_ok(self, url, fatal=False):
+        s = URL_SCHEME(url)
+        is_file = s and s.group(1).lower() == 'file'
+        if is_file or self.allows(urllib.parse.urlparse(url)[1]):
+            return True
+        msg = (
+            "\nNote: Bypassing %s (disallowed host; see "
+            "http://bit.ly/2hrImnY for details).\n")
+        if fatal:
+            raise DistutilsError(msg % url)
+        else:
+            self.warn(msg, url)
+
+    def scan_egg_links(self, search_path):
+        dirs = filter(os.path.isdir, search_path)
+        egg_links = (
+            (path, entry)
+            for path in dirs
+            for entry in os.listdir(path)
+            if entry.endswith('.egg-link')
+        )
+        list(itertools.starmap(self.scan_egg_link, egg_links))
+
+    def scan_egg_link(self, path, entry):
+        with open(os.path.join(path, entry)) as raw_lines:
+            # filter non-empty lines
+            lines = list(filter(None, map(str.strip, raw_lines)))
+
+        if len(lines) != 2:
+            # format is not recognized; punt
+            return
+
+        egg_path, setup_path = lines
+
+        for dist in find_distributions(os.path.join(path, egg_path)):
+            dist.location = os.path.join(path, *lines)
+            dist.precedence = SOURCE_DIST
+            self.add(dist)
+
+    def process_index(self, url, page):
+        """Process the contents of a PyPI page"""
+
+        def scan(link):
+            # Process a URL to see if it's for a package page
+            if link.startswith(self.index_url):
+                parts = list(map(
+                    urllib.parse.unquote, link[len(self.index_url):].split('/')
+                ))
+                if len(parts) == 2 and '#' not in parts[1]:
+                    # it's a package page, sanitize and index it
+                    pkg = safe_name(parts[0])
+                    ver = safe_version(parts[1])
+                    self.package_pages.setdefault(pkg.lower(), {})[link] = True
+                    return to_filename(pkg), to_filename(ver)
+            return None, None
+
+        # process an index page into the package-page index
+        for match in HREF.finditer(page):
+            try:
+                scan(urllib.parse.urljoin(url, htmldecode(match.group(1))))
+            except ValueError:
+                pass
+
+        pkg, ver = scan(url)  # ensure this page is in the page index
+        if pkg:
+            # process individual package page
+            for new_url in find_external_links(url, page):
+                # Process the found URL
+                base, frag = egg_info_for_url(new_url)
+                if base.endswith('.py') and not frag:
+                    if ver:
+                        new_url += '#egg=%s-%s' % (pkg, ver)
+                    else:
+                        self.need_version_info(url)
+                self.scan_url(new_url)
+
+            return PYPI_MD5.sub(
+                lambda m: '<a href="%s#md5=%s">%s</a>' % m.group(1, 3, 2), page
+            )
+        else:
+            return ""  # no sense double-scanning non-package pages
+
+    def need_version_info(self, url):
+        self.scan_all(
+            "Page at %s links to .py file(s) without version info; an index "
+            "scan is required.", url
+        )
+
+    def scan_all(self, msg=None, *args):
+        if self.index_url not in self.fetched_urls:
+            if msg:
+                self.warn(msg, *args)
+            self.info(
+                "Scanning index of all packages (this may take a while)"
+            )
+        self.scan_url(self.index_url)
+
+    def find_packages(self, requirement):
+        self.scan_url(self.index_url + requirement.unsafe_name + '/')
+
+        if not self.package_pages.get(requirement.key):
+            # Fall back to safe version of the name
+            self.scan_url(self.index_url + requirement.project_name + '/')
+
+        if not self.package_pages.get(requirement.key):
+            # We couldn't find the target package, so search the index page too
+            self.not_found_in_index(requirement)
+
+        for url in list(self.package_pages.get(requirement.key, ())):
+            # scan each page that might be related to the desired package
+            self.scan_url(url)
+
+    def obtain(self, requirement, installer=None):
+        self.prescan()
+        self.find_packages(requirement)
+        for dist in self[requirement.key]:
+            if dist in requirement:
+                return dist
+            self.debug("%s does not match %s", requirement, dist)
+        return super(PackageIndex, self).obtain(requirement, installer)
+
+    def check_hash(self, checker, filename, tfp):
+        """
+        checker is a ContentChecker
+        """
+        checker.report(
+            self.debug,
+            "Validating %%s checksum for %s" % filename)
+        if not checker.is_valid():
+            tfp.close()
+            os.unlink(filename)
+            raise DistutilsError(
+                "%s validation failed for %s; "
+                "possible download problem?"
+                % (checker.hash.name, os.path.basename(filename))
+            )
+
+    def add_find_links(self, urls):
+        """Add `urls` to the list that will be prescanned for searches"""
+        for url in urls:
+            if (
+                self.to_scan is None  # if we have already "gone online"
+                or not URL_SCHEME(url)  # or it's a local file/directory
+                or url.startswith('file:')
+                or list(distros_for_url(url))  # or a direct package link
+            ):
+                # then go ahead and process it now
+                self.scan_url(url)
+            else:
+                # otherwise, defer retrieval till later
+                self.to_scan.append(url)
+
+    def prescan(self):
+        """Scan urls scheduled for prescanning (e.g. --find-links)"""
+        if self.to_scan:
+            list(map(self.scan_url, self.to_scan))
+        self.to_scan = None  # from now on, go ahead and process immediately
+
+    def not_found_in_index(self, requirement):
+        if self[requirement.key]:  # we've seen at least one distro
+            meth, msg = self.info, "Couldn't retrieve index page for %r"
+        else:  # no distros seen for this name, might be misspelled
+            meth, msg = (
+                self.warn,
+                "Couldn't find index page for %r (maybe misspelled?)")
+        meth(msg, requirement.unsafe_name)
+        self.scan_all()
+
+    def download(self, spec, tmpdir):
+        """Locate and/or download `spec` to `tmpdir`, returning a local path
+
+        `spec` may be a ``Requirement`` object, or a string containing a URL,
+        an existing local filename, or a project/version requirement spec
+        (i.e. the string form of a ``Requirement`` object).  If it is the URL
+        of a .py file with an unambiguous ``#egg=name-version`` tag (i.e., one
+        that escapes ``-`` as ``_`` throughout), a trivial ``setup.py`` is
+        automatically created alongside the downloaded file.
+
+        If `spec` is a ``Requirement`` object or a string containing a
+        project/version requirement spec, this method returns the location of
+        a matching distribution (possibly after downloading it to `tmpdir`).
+        If `spec` is a locally existing file or directory name, it is simply
+        returned unchanged.  If `spec` is a URL, it is downloaded to a subpath
+        of `tmpdir`, and the local filename is returned.  Various errors may be
+        raised if a problem occurs during downloading.
+        """
+        if not isinstance(spec, Requirement):
+            scheme = URL_SCHEME(spec)
+            if scheme:
+                # It's a url, download it to tmpdir
+                found = self._download_url(scheme.group(1), spec, tmpdir)
+                base, fragment = egg_info_for_url(spec)
+                if base.endswith('.py'):
+                    found = self.gen_setup(found, fragment, tmpdir)
+                return found
+            elif os.path.exists(spec):
+                # Existing file or directory, just return it
+                return spec
+            else:
+                spec = parse_requirement_arg(spec)
+        return getattr(self.fetch_distribution(spec, tmpdir), 'location', None)
+
+    def fetch_distribution(
+            self, requirement, tmpdir, force_scan=False, source=False,
+            develop_ok=False, local_index=None):
+        """Obtain a distribution suitable for fulfilling `requirement`
+
+        `requirement` must be a ``pkg_resources.Requirement`` instance.
+        If necessary, or if the `force_scan` flag is set, the requirement is
+        searched for in the (online) package index as well as the locally
+        installed packages.  If a distribution matching `requirement` is found,
+        the returned distribution's ``location`` is the value you would have
+        gotten from calling the ``download()`` method with the matching
+        distribution's URL or filename.  If no matching distribution is found,
+        ``None`` is returned.
+
+        If the `source` flag is set, only source distributions and source
+        checkout links will be considered.  Unless the `develop_ok` flag is
+        set, development and system eggs (i.e., those using the ``.egg-info``
+        format) will be ignored.
+        """
+        # process a Requirement
+        self.info("Searching for %s", requirement)
+        skipped = {}
+        dist = None
+
+        def find(req, env=None):
+            if env is None:
+                env = self
+            # Find a matching distribution; may be called more than once
+
+            for dist in env[req.key]:
+
+                if dist.precedence == DEVELOP_DIST and not develop_ok:
+                    if dist not in skipped:
+                        self.warn(
+                            "Skipping development or system egg: %s", dist,
+                        )
+                        skipped[dist] = 1
+                    continue
+
+                test = (
+                    dist in req
+                    and (dist.precedence <= SOURCE_DIST or not source)
+                )
+                if test:
+                    loc = self.download(dist.location, tmpdir)
+                    dist.download_location = loc
+                    if os.path.exists(dist.download_location):
+                        return dist
+
+        if force_scan:
+            self.prescan()
+            self.find_packages(requirement)
+            dist = find(requirement)
+
+        if not dist and local_index is not None:
+            dist = find(requirement, local_index)
+
+        if dist is None:
+            if self.to_scan is not None:
+                self.prescan()
+            dist = find(requirement)
+
+        if dist is None and not force_scan:
+            self.find_packages(requirement)
+            dist = find(requirement)
+
+        if dist is None:
+            self.warn(
+                "No local packages or working download links found for %s%s",
+                (source and "a source distribution of " or ""),
+                requirement,
+            )
+        else:
+            self.info("Best match: %s", dist)
+            return dist.clone(location=dist.download_location)
+
+    def fetch(self, requirement, tmpdir, force_scan=False, source=False):
+        """Obtain a file suitable for fulfilling `requirement`
+
+        DEPRECATED; use the ``fetch_distribution()`` method now instead.  For
+        backward compatibility, this routine is identical but returns the
+        ``location`` of the downloaded distribution instead of a distribution
+        object.
+        """
+        dist = self.fetch_distribution(requirement, tmpdir, force_scan, source)
+        if dist is not None:
+            return dist.location
+        return None
+
+    def gen_setup(self, filename, fragment, tmpdir):
+        match = EGG_FRAGMENT.match(fragment)
+        dists = match and [
+            d for d in
+            interpret_distro_name(filename, match.group(1), None) if d.version
+        ] or []
+
+        if len(dists) == 1:  # unambiguous ``#egg`` fragment
+            basename = os.path.basename(filename)
+
+            # Make sure the file has been downloaded to the temp dir.
+            if os.path.dirname(filename) != tmpdir:
+                dst = os.path.join(tmpdir, basename)
+                from setuptools.command.easy_install import samefile
+                if not samefile(filename, dst):
+                    shutil.copy2(filename, dst)
+                    filename = dst
+
+            with open(os.path.join(tmpdir, 'setup.py'), 'w') as file:
+                file.write(
+                    "from setuptools import setup\n"
+                    "setup(name=%r, version=%r, py_modules=[%r])\n"
+                    % (
+                        dists[0].project_name, dists[0].version,
+                        os.path.splitext(basename)[0]
+                    )
+                )
+            return filename
+
+        elif match:
+            raise DistutilsError(
+                "Can't unambiguously interpret project/version identifier %r; "
+                "any dashes in the name or version should be escaped using "
+                "underscores. %r" % (fragment, dists)
+            )
+        else:
+            raise DistutilsError(
+                "Can't process plain .py files without an '#egg=name-version'"
+                " suffix to enable automatic setup script generation."
+            )
+
+    dl_blocksize = 8192
+
+    def _download_to(self, url, filename):
+        self.info("Downloading %s", url)
+        # Download the file
+        fp = None
+        try:
+            checker = HashChecker.from_url(url)
+            fp = self.open_url(url)
+            if isinstance(fp, urllib.error.HTTPError):
+                raise DistutilsError(
+                    "Can't download %s: %s %s" % (url, fp.code, fp.msg)
+                )
+            headers = fp.info()
+            blocknum = 0
+            bs = self.dl_blocksize
+            size = -1
+            if "content-length" in headers:
+                # Some servers return multiple Content-Length headers :(
+                sizes = get_all_headers(headers, 'Content-Length')
+                size = max(map(int, sizes))
+                self.reporthook(url, filename, blocknum, bs, size)
+            with open(filename, 'wb') as tfp:
+                while True:
+                    block = fp.read(bs)
+                    if block:
+                        checker.feed(block)
+                        tfp.write(block)
+                        blocknum += 1
+                        self.reporthook(url, filename, blocknum, bs, size)
+                    else:
+                        break
+                self.check_hash(checker, filename, tfp)
+            return headers
+        finally:
+            if fp:
+                fp.close()
+
+    def reporthook(self, url, filename, blocknum, blksize, size):
+        pass  # no-op
+
+    def open_url(self, url, warning=None):
+        if url.startswith('file:'):
+            return local_open(url)
+        try:
+            return open_with_auth(url, self.opener)
+        except (ValueError, http_client.InvalidURL) as v:
+            msg = ' '.join([str(arg) for arg in v.args])
+            if warning:
+                self.warn(warning, msg)
+            else:
+                raise DistutilsError('%s %s' % (url, msg))
+        except urllib.error.HTTPError as v:
+            return v
+        except urllib.error.URLError as v:
+            if warning:
+                self.warn(warning, v.reason)
+            else:
+                raise DistutilsError("Download error for %s: %s"
+                                     % (url, v.reason))
+        except http_client.BadStatusLine as v:
+            if warning:
+                self.warn(warning, v.line)
+            else:
+                raise DistutilsError(
+                    '%s returned a bad status line. The server might be '
+                    'down, %s' %
+                    (url, v.line)
+                )
+        except (http_client.HTTPException, socket.error) as v:
+            if warning:
+                self.warn(warning, v)
+            else:
+                raise DistutilsError("Download error for %s: %s"
+                                     % (url, v))
+
+    def _download_url(self, scheme, url, tmpdir):
+        # Determine download filename
+        #
+        name, fragment = egg_info_for_url(url)
+        if name:
+            while '..' in name:
+                name = name.replace('..', '.').replace('\\', '_')
+        else:
+            name = "__downloaded__"  # default if URL has no path contents
+
+        if name.endswith('.egg.zip'):
+            name = name[:-4]  # strip the extra .zip before download
+
+        filename = os.path.join(tmpdir, name)
+
+        # Download the file
+        #
+        if scheme == 'svn' or scheme.startswith('svn+'):
+            return self._download_svn(url, filename)
+        elif scheme == 'git' or scheme.startswith('git+'):
+            return self._download_git(url, filename)
+        elif scheme.startswith('hg+'):
+            return self._download_hg(url, filename)
+        elif scheme == 'file':
+            return urllib.request.url2pathname(urllib.parse.urlparse(url)[2])
+        else:
+            self.url_ok(url, True)  # raises error if not allowed
+            return self._attempt_download(url, filename)
+
+    def scan_url(self, url):
+        self.process_url(url, True)
+
+    def _attempt_download(self, url, filename):
+        headers = self._download_to(url, filename)
+        if 'html' in headers.get('content-type', '').lower():
+            return self._download_html(url, headers, filename)
+        else:
+            return filename
+
+    def _download_html(self, url, headers, filename):
+        file = open(filename)
+        for line in file:
+            if line.strip():
+                # Check for a subversion index page
+                if re.search(r'<title>([^- ]+ - )?Revision \d+:', line):
+                    # it's a subversion index page:
+                    file.close()
+                    os.unlink(filename)
+                    return self._download_svn(url, filename)
+                break  # not an index page
+        file.close()
+        os.unlink(filename)
+        raise DistutilsError("Unexpected HTML page found at " + url)
+
+    def _download_svn(self, url, filename):
+        url = url.split('#', 1)[0]  # remove any fragment for svn's sake
+        creds = ''
+        if url.lower().startswith('svn:') and '@' in url:
+            scheme, netloc, path, p, q, f = urllib.parse.urlparse(url)
+            if not netloc and path.startswith('//') and '/' in path[2:]:
+                netloc, path = path[2:].split('/', 1)
+                auth, host = splituser(netloc)
+                if auth:
+                    if ':' in auth:
+                        user, pw = auth.split(':', 1)
+                        creds = " --username=%s --password=%s" % (user, pw)
+                    else:
+                        creds = " --username=" + auth
+                    netloc = host
+                    parts = scheme, netloc, url, p, q, f
+                    url = urllib.parse.urlunparse(parts)
+        self.info("Doing subversion checkout from %s to %s", url, filename)
+        os.system("svn checkout%s -q %s %s" % (creds, url, filename))
+        return filename
+
+    @staticmethod
+    def _vcs_split_rev_from_url(url, pop_prefix=False):
+        scheme, netloc, path, query, frag = urllib.parse.urlsplit(url)
+
+        scheme = scheme.split('+', 1)[-1]
+
+        # Some fragment identification fails
+        path = path.split('#', 1)[0]
+
+        rev = None
+        if '@' in path:
+            path, rev = path.rsplit('@', 1)
+
+        # Also, discard fragment
+        url = urllib.parse.urlunsplit((scheme, netloc, path, query, ''))
+
+        return url, rev
+
+    def _download_git(self, url, filename):
+        filename = filename.split('#', 1)[0]
+        url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
+
+        self.info("Doing git clone from %s to %s", url, filename)
+        os.system("git clone --quiet %s %s" % (url, filename))
+
+        if rev is not None:
+            self.info("Checking out %s", rev)
+            os.system("(cd %s && git checkout --quiet %s)" % (
+                filename,
+                rev,
+            ))
+
+        return filename
+
+    def _download_hg(self, url, filename):
+        filename = filename.split('#', 1)[0]
+        url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
+
+        self.info("Doing hg clone from %s to %s", url, filename)
+        os.system("hg clone --quiet %s %s" % (url, filename))
+
+        if rev is not None:
+            self.info("Updating to %s", rev)
+            os.system("(cd %s && hg up -C -r %s -q)" % (
+                filename,
+                rev,
+            ))
+
+        return filename
+
+    def debug(self, msg, *args):
+        log.debug(msg, *args)
+
+    def info(self, msg, *args):
+        log.info(msg, *args)
+
+    def warn(self, msg, *args):
+        log.warn(msg, *args)
+
+
+# This pattern matches a character entity reference (a decimal numeric
+# references, a hexadecimal numeric reference, or a named reference).
+entity_sub = re.compile(r'&(#(\d+|x[\da-fA-F]+)|[\w.:-]+);?').sub
+
+
+def uchr(c):
+    if not isinstance(c, int):
+        return c
+    if c > 255:
+        return six.unichr(c)
+    return chr(c)
+
+
+def decode_entity(match):
+    what = match.group(1)
+    if what.startswith('#x'):
+        what = int(what[2:], 16)
+    elif what.startswith('#'):
+        what = int(what[1:])
+    else:
+        what = six.moves.html_entities.name2codepoint.get(what, match.group(0))
+    return uchr(what)
+
+
+def htmldecode(text):
+    """Decode HTML entities in the given text."""
+    return entity_sub(decode_entity, text)
+
+
+def socket_timeout(timeout=15):
+    def _socket_timeout(func):
+        def _socket_timeout(*args, **kwargs):
+            old_timeout = socket.getdefaulttimeout()
+            socket.setdefaulttimeout(timeout)
+            try:
+                return func(*args, **kwargs)
+            finally:
+                socket.setdefaulttimeout(old_timeout)
+
+        return _socket_timeout
+
+    return _socket_timeout
+
+
+def _encode_auth(auth):
+    """
+    A function compatible with Python 2.3-3.3 that will encode
+    auth from a URL suitable for an HTTP header.
+    >>> str(_encode_auth('username%3Apassword'))
+    'dXNlcm5hbWU6cGFzc3dvcmQ='
+
+    Long auth strings should not cause a newline to be inserted.
+    >>> long_auth = 'username:' + 'password'*10
+    >>> chr(10) in str(_encode_auth(long_auth))
+    False
+    """
+    auth_s = urllib.parse.unquote(auth)
+    # convert to bytes
+    auth_bytes = auth_s.encode()
+    # use the legacy interface for Python 2.3 support
+    encoded_bytes = base64.encodestring(auth_bytes)
+    # convert back to a string
+    encoded = encoded_bytes.decode()
+    # strip the trailing carriage return
+    return encoded.replace('\n', '')
+
+
+class Credential(object):
+    """
+    A username/password pair. Use like a namedtuple.
+    """
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+
+    def __iter__(self):
+        yield self.username
+        yield self.password
+
+    def __str__(self):
+        return '%(username)s:%(password)s' % vars(self)
+
+
+class PyPIConfig(configparser.RawConfigParser):
+    def __init__(self):
+        """
+        Load from ~/.pypirc
+        """
+        defaults = dict.fromkeys(['username', 'password', 'repository'], '')
+        configparser.RawConfigParser.__init__(self, defaults)
+
+        rc = os.path.join(os.path.expanduser('~'), '.pypirc')
+        if os.path.exists(rc):
+            self.read(rc)
+
+    @property
+    def creds_by_repository(self):
+        sections_with_repositories = [
+            section for section in self.sections()
+            if self.get(section, 'repository').strip()
+        ]
+
+        return dict(map(self._get_repo_cred, sections_with_repositories))
+
+    def _get_repo_cred(self, section):
+        repo = self.get(section, 'repository').strip()
+        return repo, Credential(
+            self.get(section, 'username').strip(),
+            self.get(section, 'password').strip(),
+        )
+
+    def find_credential(self, url):
+        """
+        If the URL indicated appears to be a repository defined in this
+        config, return the credential for that repository.
+        """
+        for repository, cred in self.creds_by_repository.items():
+            if url.startswith(repository):
+                return cred
+
+
+def open_with_auth(url, opener=urllib.request.urlopen):
+    """Open a urllib2 request, handling HTTP authentication"""
+
+    scheme, netloc, path, params, query, frag = urllib.parse.urlparse(url)
+
+    # Double scheme does not raise on Mac OS X as revealed by a
+    # failing test. We would expect "nonnumeric port". Refs #20.
+    if netloc.endswith(':'):
+        raise http_client.InvalidURL("nonnumeric port: ''")
+
+    if scheme in ('http', 'https'):
+        auth, host = splituser(netloc)
+    else:
+        auth = None
+
+    if not auth:
+        cred = PyPIConfig().find_credential(url)
+        if cred:
+            auth = str(cred)
+            info = cred.username, url
+            log.info('Authenticating as %s for %s (from .pypirc)', *info)
+
+    if auth:
+        auth = "Basic " + _encode_auth(auth)
+        parts = scheme, host, path, params, query, frag
+        new_url = urllib.parse.urlunparse(parts)
+        request = urllib.request.Request(new_url)
+        request.add_header("Authorization", auth)
+    else:
+        request = urllib.request.Request(url)
+
+    request.add_header('User-Agent', user_agent)
+    fp = opener(request)
+
+    if auth:
+        # Put authentication info back into request URL if same host,
+        # so that links found on the page will work
+        s2, h2, path2, param2, query2, frag2 = urllib.parse.urlparse(fp.url)
+        if s2 == scheme and h2 == host:
+            parts = s2, netloc, path2, param2, query2, frag2
+            fp.url = urllib.parse.urlunparse(parts)
+
+    return fp
+
+
+# adding a timeout to avoid freezing package_index
+open_with_auth = socket_timeout(_SOCKET_TIMEOUT)(open_with_auth)
+
+
+def fix_sf_url(url):
+    return url  # backward compatibility
+
+
+def local_open(url):
+    """Read a local path, with special support for directories"""
+    scheme, server, path, param, query, frag = urllib.parse.urlparse(url)
+    filename = urllib.request.url2pathname(path)
+    if os.path.isfile(filename):
+        return urllib.request.urlopen(url)
+    elif path.endswith('/') and os.path.isdir(filename):
+        files = []
+        for f in os.listdir(filename):
+            filepath = os.path.join(filename, f)
+            if f == 'index.html':
+                with open(filepath, 'r') as fp:
+                    body = fp.read()
+                break
+            elif os.path.isdir(filepath):
+                f += '/'
+            files.append('<a href="{name}">{name}</a>'.format(name=f))
+        else:
+            tmpl = (
+                "<html><head><title>{url}</title>"
+                "</head><body>{files}</body></html>")
+            body = tmpl.format(url=url, files='\n'.join(files))
+        status, message = 200, "OK"
+    else:
+        status, message, body = 404, "Path not found", "Not found"
+
+    headers = {'content-type': 'text/html'}
+    body_stream = six.StringIO(body)
+    return urllib.error.HTTPError(url, status, message, headers, body_stream)
diff --git a/venv/lib/python3.5/site-packages/setuptools/pep425tags.py b/venv/lib/python3.5/site-packages/setuptools/pep425tags.py
new file mode 100644
index 0000000..dfe55d5
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/pep425tags.py
@@ -0,0 +1,316 @@
+# This file originally from pip:
+# https://github.com/pypa/pip/blob/8f4f15a5a95d7d5b511ceaee9ed261176c181970/src/pip/_internal/pep425tags.py
+"""Generate and work with PEP 425 Compatibility Tags."""
+from __future__ import absolute_import
+
+import distutils.util
+import platform
+import re
+import sys
+import sysconfig
+import warnings
+from collections import OrderedDict
+
+from . import glibc
+
+_osx_arch_pat = re.compile(r'(.+)_(\d+)_(\d+)_(.+)')
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # Issue #1074
+        warnings.warn("{}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    if hasattr(sys, 'pypy_version_info'):
+        pyimpl = 'pp'
+    elif sys.platform.startswith('java'):
+        pyimpl = 'jy'
+    elif sys.platform == 'cli':
+        pyimpl = 'ip'
+    else:
+        pyimpl = 'cp'
+    return pyimpl
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_impl_tag():
+    """
+    Returns the Tag for this specific implementation.
+    """
+    return "{}{}".format(get_abbr_impl(), get_impl_ver())
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn("Config variable '{0}' is unset, Python ABI tag may "
+                          "be incorrect".format(var), RuntimeWarning, 2)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in {'cp', 'pp'} and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def _is_running_32bit():
+    return sys.maxsize == 2147483647
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    if sys.platform == 'darwin':
+        # distutils.util.get_platform() returns the release based on the value
+        # of MACOSX_DEPLOYMENT_TARGET on which Python was built, which may
+        # be significantly older than the user's current machine.
+        release, _, machine = platform.mac_ver()
+        split_ver = release.split('.')
+
+        if machine == "x86_64" and _is_running_32bit():
+            machine = "i386"
+        elif machine == "ppc64" and _is_running_32bit():
+            machine = "ppc"
+
+        return 'macosx_{}_{}_{}'.format(split_ver[0], split_ver[1], machine)
+
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and _is_running_32bit():
+        # 32 bit Python program (running on a 64 bit Linux): pip should only
+        # install and run 32 bit compiled extensions in that case.
+        result = "linux_i686"
+
+    return result
+
+
+def is_manylinux1_compatible():
+    # Only Linux, and only x86-64 / i686
+    if get_platform() not in {"linux_x86_64", "linux_i686"}:
+        return False
+
+    # Check for presence of _manylinux module
+    try:
+        import _manylinux
+        return bool(_manylinux.manylinux1_compatible)
+    except (ImportError, AttributeError):
+        # Fall through to heuristic check below
+        pass
+
+    # Check glibc version. CentOS 5 uses glibc 2.5.
+    return glibc.have_compatible_glibc(2, 5)
+
+
+def get_darwin_arches(major, minor, machine):
+    """Return a list of supported arches (including group arches) for
+    the given major, minor and machine architecture of an macOS machine.
+    """
+    arches = []
+
+    def _supports_arch(major, minor, arch):
+        # Looking at the application support for macOS versions in the chart
+        # provided by https://en.wikipedia.org/wiki/OS_X#Versions it appears
+        # our timeline looks roughly like:
+        #
+        # 10.0 - Introduces ppc support.
+        # 10.4 - Introduces ppc64, i386, and x86_64 support, however the ppc64
+        #        and x86_64 support is CLI only, and cannot be used for GUI
+        #        applications.
+        # 10.5 - Extends ppc64 and x86_64 support to cover GUI applications.
+        # 10.6 - Drops support for ppc64
+        # 10.7 - Drops support for ppc
+        #
+        # Given that we do not know if we're installing a CLI or a GUI
+        # application, we must be conservative and assume it might be a GUI
+        # application and behave as if ppc64 and x86_64 support did not occur
+        # until 10.5.
+        #
+        # Note: The above information is taken from the "Application support"
+        #       column in the chart not the "Processor support" since I believe
+        #       that we care about what instruction sets an application can use
+        #       not which processors the OS supports.
+        if arch == 'ppc':
+            return (major, minor) <= (10, 5)
+        if arch == 'ppc64':
+            return (major, minor) == (10, 5)
+        if arch == 'i386':
+            return (major, minor) >= (10, 4)
+        if arch == 'x86_64':
+            return (major, minor) >= (10, 5)
+        if arch in groups:
+            for garch in groups[arch]:
+                if _supports_arch(major, minor, garch):
+                    return True
+        return False
+
+    groups = OrderedDict([
+        ("fat", ("i386", "ppc")),
+        ("intel", ("x86_64", "i386")),
+        ("fat64", ("x86_64", "ppc64")),
+        ("fat32", ("x86_64", "i386", "ppc")),
+    ])
+
+    if _supports_arch(major, minor, machine):
+        arches.append(machine)
+
+    for garch in groups:
+        if machine in groups[garch] and _supports_arch(major, minor, garch):
+            arches.append(garch)
+
+    arches.append('universal')
+
+    return arches
+
+
+def get_supported(versions=None, noarch=False, platform=None,
+                  impl=None, abi=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    :param platform: specify the exact platform you want valid
+        tags for, or None. If None, use the local system platform.
+    :param impl: specify the exact implementation you want valid
+        tags for, or None. If None, use the local interpreter impl.
+    :param abi: specify the exact abi you want valid
+        tags for, or None. If None, use the local interpreter abi.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = impl or get_abbr_impl()
+
+    abis = []
+
+    abi = abi or get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    if not noarch:
+        arch = platform or get_platform()
+        if arch.startswith('macosx'):
+            # support macosx-10.6-intel on macosx-10.9-x86_64
+            match = _osx_arch_pat.match(arch)
+            if match:
+                name, major, minor, actual_arch = match.groups()
+                tpl = '{}_{}_%i_%s'.format(name, major)
+                arches = []
+                for m in reversed(range(int(minor) + 1)):
+                    for a in get_darwin_arches(int(major), m, actual_arch):
+                        arches.append(tpl % (m, a))
+            else:
+                # arch pattern didn't match (?!)
+                arches = [arch]
+        elif platform is None and is_manylinux1_compatible():
+            arches = [arch.replace('linux', 'manylinux1'), arch]
+        else:
+            arches = [arch]
+
+        # Current version, current API (built specifically for our Python):
+        for abi in abis:
+            for arch in arches:
+                supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+        # abi3 modules compatible with older version of Python
+        for version in versions[1:]:
+            # abi3 was introduced in Python 3.2
+            if version in {'31', '30'}:
+                break
+            for abi in abi3s:   # empty set if not Python 3
+                for arch in arches:
+                    supported.append(("%s%s" % (impl, version), abi, arch))
+
+        # Has binaries, does not use the Python API:
+        for arch in arches:
+            supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, but requires our implementation:
+    supported.append(('%s%s' % (impl, versions[0]), 'none', 'any'))
+    # Tagged specifically as being cross-version compatible
+    # (with just the major version specified)
+    supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
+
+
+implementation_tag = get_impl_tag()
diff --git a/venv/lib/python3.5/site-packages/setuptools/py27compat.py b/venv/lib/python3.5/site-packages/setuptools/py27compat.py
new file mode 100644
index 0000000..2985011
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/py27compat.py
@@ -0,0 +1,28 @@
+"""
+Compatibility Support for Python 2.7 and earlier
+"""
+
+import platform
+
+from setuptools.extern import six
+
+
+def get_all_headers(message, key):
+    """
+    Given an HTTPMessage, return all headers matching a given key.
+    """
+    return message.get_all(key)
+
+
+if six.PY2:
+    def get_all_headers(message, key):
+        return message.getheaders(key)
+
+
+linux_py2_ascii = (
+    platform.system() == 'Linux' and
+    six.PY2
+)
+
+rmtree_safe = str if linux_py2_ascii else lambda x: x
+"""Workaround for http://bugs.python.org/issue24672"""
diff --git a/venv/lib/python3.5/site-packages/setuptools/py31compat.py b/venv/lib/python3.5/site-packages/setuptools/py31compat.py
new file mode 100644
index 0000000..4ea9532
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/py31compat.py
@@ -0,0 +1,41 @@
+__all__ = ['get_config_vars', 'get_path']
+
+try:
+    # Python 2.7 or >=3.2
+    from sysconfig import get_config_vars, get_path
+except ImportError:
+    from distutils.sysconfig import get_config_vars, get_python_lib
+
+    def get_path(name):
+        if name not in ('platlib', 'purelib'):
+            raise ValueError("Name must be purelib or platlib")
+        return get_python_lib(name == 'platlib')
+
+
+try:
+    # Python >=3.2
+    from tempfile import TemporaryDirectory
+except ImportError:
+    import shutil
+    import tempfile
+
+    class TemporaryDirectory(object):
+        """
+        Very simple temporary directory context manager.
+        Will try to delete afterward, but will also ignore OS and similar
+        errors on deletion.
+        """
+
+        def __init__(self):
+            self.name = None  # Handle mkdtemp raising an exception
+            self.name = tempfile.mkdtemp()
+
+        def __enter__(self):
+            return self.name
+
+        def __exit__(self, exctype, excvalue, exctrace):
+            try:
+                shutil.rmtree(self.name, True)
+            except OSError:  # removal errors are not the only possible
+                pass
+            self.name = None
diff --git a/venv/lib/python3.5/site-packages/setuptools/py33compat.py b/venv/lib/python3.5/site-packages/setuptools/py33compat.py
new file mode 100644
index 0000000..af64d5d
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/py33compat.py
@@ -0,0 +1,45 @@
+import dis
+import array
+import collections
+
+from setuptools.extern import six
+
+
+OpArg = collections.namedtuple('OpArg', 'opcode arg')
+
+
+class Bytecode_compat(object):
+    def __init__(self, code):
+        self.code = code
+
+    def __iter__(self):
+        """Yield '(op,arg)' pair for each operation in code object 'code'"""
+
+        bytes = array.array('b', self.code.co_code)
+        eof = len(self.code.co_code)
+
+        ptr = 0
+        extended_arg = 0
+
+        while ptr < eof:
+
+            op = bytes[ptr]
+
+            if op >= dis.HAVE_ARGUMENT:
+
+                arg = bytes[ptr + 1] + bytes[ptr + 2] * 256 + extended_arg
+                ptr += 3
+
+                if op == dis.EXTENDED_ARG:
+                    long_type = six.integer_types[-1]
+                    extended_arg = arg * long_type(65536)
+                    continue
+
+            else:
+                arg = None
+                ptr += 1
+
+            yield OpArg(op, arg)
+
+
+Bytecode = getattr(dis, 'Bytecode', Bytecode_compat)
diff --git a/venv/lib/python3.5/site-packages/setuptools/py36compat.py b/venv/lib/python3.5/site-packages/setuptools/py36compat.py
new file mode 100644
index 0000000..f527969
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/py36compat.py
@@ -0,0 +1,82 @@
+import sys
+from distutils.errors import DistutilsOptionError
+from distutils.util import strtobool
+from distutils.debug import DEBUG
+
+
+class Distribution_parse_config_files:
+    """
+    Mix-in providing forward-compatibility for functionality to be
+    included by default on Python 3.7.
+
+    Do not edit the code in this class except to update functionality
+    as implemented in distutils.
+    """
+    def parse_config_files(self, filenames=None):
+        from configparser import ConfigParser
+
+        # Ignore install directory options if we have a venv
+        if sys.prefix != sys.base_prefix:
+            ignore_options = [
+                'install-base', 'install-platbase', 'install-lib',
+                'install-platlib', 'install-purelib', 'install-headers',
+                'install-scripts', 'install-data', 'prefix', 'exec-prefix',
+                'home', 'user', 'root']
+        else:
+            ignore_options = []
+
+        ignore_options = frozenset(ignore_options)
+
+        if filenames is None:
+            filenames = self.find_config_files()
+
+        if DEBUG:
+            self.announce("Distribution.parse_config_files():")
+
+        parser = ConfigParser(interpolation=None)
+        for filename in filenames:
+            if DEBUG:
+                self.announce("  reading %s" % filename)
+            parser.read(filename)
+            for section in parser.sections():
+                options = parser.options(section)
+                opt_dict = self.get_option_dict(section)
+
+                for opt in options:
+                    if opt != '__name__' and opt not in ignore_options:
+                        val = parser.get(section,opt)
+                        opt = opt.replace('-', '_')
+                        opt_dict[opt] = (filename, val)
+
+            # Make the ConfigParser forget everything (so we retain
+            # the original filenames that options come from)
+            parser.__init__()
+
+        # If there was a "global" section in the config file, use it
+        # to set Distribution options.
+
+        if 'global' in self.command_options:
+            for (opt, (src, val)) in self.command_options['global'].items():
+                alias = self.negative_opt.get(opt)
+                try:
+                    if alias:
+                        setattr(self, alias, not strtobool(val))
+                    elif opt in ('verbose', 'dry_run'): # ugh!
+                        setattr(self, opt, strtobool(val))
+                    else:
+                        setattr(self, opt, val)
+                except ValueError as msg:
+                    raise DistutilsOptionError(msg)
+
+
+if sys.version_info < (3,):
+    # Python 2 behavior is sufficient
+    class Distribution_parse_config_files:
+        pass
+
+
+if False:
+    # When updated behavior is available upstream,
+    # disable override here.
+    class Distribution_parse_config_files:
+        pass
diff --git a/venv/lib/python3.5/site-packages/setuptools/sandbox.py b/venv/lib/python3.5/site-packages/setuptools/sandbox.py
new file mode 100644
index 0000000..685f3f7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/sandbox.py
@@ -0,0 +1,491 @@
+import os
+import sys
+import tempfile
+import operator
+import functools
+import itertools
+import re
+import contextlib
+import pickle
+import textwrap
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import builtins, map
+
+import pkg_resources.py31compat
+
+if sys.platform.startswith('java'):
+    import org.python.modules.posix.PosixModule as _os
+else:
+    _os = sys.modules[os.name]
+try:
+    _file = file
+except NameError:
+    _file = None
+_open = open
+from distutils.errors import DistutilsError
+from pkg_resources import working_set
+
+
+__all__ = [
+    "AbstractSandbox", "DirectorySandbox", "SandboxViolation", "run_setup",
+]
+
+
+def _execfile(filename, globals, locals=None):
+    """
+    Python 3 implementation of execfile.
+    """
+    mode = 'rb'
+    with open(filename, mode) as stream:
+        script = stream.read()
+    if locals is None:
+        locals = globals
+    code = compile(script, filename, 'exec')
+    exec(code, globals, locals)
+
+
+@contextlib.contextmanager
+def save_argv(repl=None):
+    saved = sys.argv[:]
+    if repl is not None:
+        sys.argv[:] = repl
+    try:
+        yield saved
+    finally:
+        sys.argv[:] = saved
+
+
+@contextlib.contextmanager
+def save_path():
+    saved = sys.path[:]
+    try:
+        yield saved
+    finally:
+        sys.path[:] = saved
+
+
+@contextlib.contextmanager
+def override_temp(replacement):
+    """
+    Monkey-patch tempfile.tempdir with replacement, ensuring it exists
+    """
+    pkg_resources.py31compat.makedirs(replacement, exist_ok=True)
+
+    saved = tempfile.tempdir
+
+    tempfile.tempdir = replacement
+
+    try:
+        yield
+    finally:
+        tempfile.tempdir = saved
+
+
+@contextlib.contextmanager
+def pushd(target):
+    saved = os.getcwd()
+    os.chdir(target)
+    try:
+        yield saved
+    finally:
+        os.chdir(saved)
+
+
+class UnpickleableException(Exception):
+    """
+    An exception representing another Exception that could not be pickled.
+    """
+
+    @staticmethod
+    def dump(type, exc):
+        """
+        Always return a dumped (pickled) type and exc. If exc can't be pickled,
+        wrap it in UnpickleableException first.
+        """
+        try:
+            return pickle.dumps(type), pickle.dumps(exc)
+        except Exception:
+            # get UnpickleableException inside the sandbox
+            from setuptools.sandbox import UnpickleableException as cls
+            return cls.dump(cls, cls(repr(exc)))
+
+
+class ExceptionSaver:
+    """
+    A Context Manager that will save an exception, serialized, and restore it
+    later.
+    """
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, exc, tb):
+        if not exc:
+            return
+
+        # dump the exception
+        self._saved = UnpickleableException.dump(type, exc)
+        self._tb = tb
+
+        # suppress the exception
+        return True
+
+    def resume(self):
+        "restore and re-raise any exception"
+
+        if '_saved' not in vars(self):
+            return
+
+        type, exc = map(pickle.loads, self._saved)
+        six.reraise(type, exc, self._tb)
+
+
+@contextlib.contextmanager
+def save_modules():
+    """
+    Context in which imported modules are saved.
+
+    Translates exceptions internal to the context into the equivalent exception
+    outside the context.
+    """
+    saved = sys.modules.copy()
+    with ExceptionSaver() as saved_exc:
+        yield saved
+
+    sys.modules.update(saved)
+    # remove any modules imported since
+    del_modules = (
+        mod_name for mod_name in sys.modules
+        if mod_name not in saved
+        # exclude any encodings modules. See #285
+        and not mod_name.startswith('encodings.')
+    )
+    _clear_modules(del_modules)
+
+    saved_exc.resume()
+
+
+def _clear_modules(module_names):
+    for mod_name in list(module_names):
+        del sys.modules[mod_name]
+
+
+@contextlib.contextmanager
+def save_pkg_resources_state():
+    saved = pkg_resources.__getstate__()
+    try:
+        yield saved
+    finally:
+        pkg_resources.__setstate__(saved)
+
+
+@contextlib.contextmanager
+def setup_context(setup_dir):
+    temp_dir = os.path.join(setup_dir, 'temp')
+    with save_pkg_resources_state():
+        with save_modules():
+            hide_setuptools()
+            with save_path():
+                with save_argv():
+                    with override_temp(temp_dir):
+                        with pushd(setup_dir):
+                            # ensure setuptools commands are available
+                            __import__('setuptools')
+                            yield
+
+
+def _needs_hiding(mod_name):
+    """
+    >>> _needs_hiding('setuptools')
+    True
+    >>> _needs_hiding('pkg_resources')
+    True
+    >>> _needs_hiding('setuptools_plugin')
+    False
+    >>> _needs_hiding('setuptools.__init__')
+    True
+    >>> _needs_hiding('distutils')
+    True
+    >>> _needs_hiding('os')
+    False
+    >>> _needs_hiding('Cython')
+    True
+    """
+    pattern = re.compile(r'(setuptools|pkg_resources|distutils|Cython)(\.|$)')
+    return bool(pattern.match(mod_name))
+
+
+def hide_setuptools():
+    """
+    Remove references to setuptools' modules from sys.modules to allow the
+    invocation to import the most appropriate setuptools. This technique is
+    necessary to avoid issues such as #315 where setuptools upgrading itself
+    would fail to find a function declared in the metadata.
+    """
+    modules = filter(_needs_hiding, sys.modules)
+    _clear_modules(modules)
+
+
+def run_setup(setup_script, args):
+    """Run a distutils setup script, sandboxed in its directory"""
+    setup_dir = os.path.abspath(os.path.dirname(setup_script))
+    with setup_context(setup_dir):
+        try:
+            sys.argv[:] = [setup_script] + list(args)
+            sys.path.insert(0, setup_dir)
+            # reset to include setup dir, w/clean callback list
+            working_set.__init__()
+            working_set.callbacks.append(lambda dist: dist.activate())
+
+            # __file__ should be a byte string on Python 2 (#712)
+            dunder_file = (
+                setup_script
+                if isinstance(setup_script, str) else
+                setup_script.encode(sys.getfilesystemencoding())
+            )
+
+            with DirectorySandbox(setup_dir):
+                ns = dict(__file__=dunder_file, __name__='__main__')
+                _execfile(setup_script, ns)
+        except SystemExit as v:
+            if v.args and v.args[0]:
+                raise
+            # Normal exit, just return
+
+
+class AbstractSandbox:
+    """Wrap 'os' module and 'open()' builtin for virtualizing setup scripts"""
+
+    _active = False
+
+    def __init__(self):
+        self._attrs = [
+            name for name in dir(_os)
+            if not name.startswith('_') and hasattr(self, name)
+        ]
+
+    def _copy(self, source):
+        for name in self._attrs:
+            setattr(os, name, getattr(source, name))
+
+    def __enter__(self):
+        self._copy(self)
+        if _file:
+            builtins.file = self._file
+        builtins.open = self._open
+        self._active = True
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self._active = False
+        if _file:
+            builtins.file = _file
+        builtins.open = _open
+        self._copy(_os)
+
+    def run(self, func):
+        """Run 'func' under os sandboxing"""
+        with self:
+            return func()
+
+    def _mk_dual_path_wrapper(name):
+        original = getattr(_os, name)
+
+        def wrap(self, src, dst, *args, **kw):
+            if self._active:
+                src, dst = self._remap_pair(name, src, dst, *args, **kw)
+            return original(src, dst, *args, **kw)
+
+        return wrap
+
+    for name in ["rename", "link", "symlink"]:
+        if hasattr(_os, name):
+            locals()[name] = _mk_dual_path_wrapper(name)
+
+    def _mk_single_path_wrapper(name, original=None):
+        original = original or getattr(_os, name)
+
+        def wrap(self, path, *args, **kw):
+            if self._active:
+                path = self._remap_input(name, path, *args, **kw)
+            return original(path, *args, **kw)
+
+        return wrap
+
+    if _file:
+        _file = _mk_single_path_wrapper('file', _file)
+    _open = _mk_single_path_wrapper('open', _open)
+    for name in [
+        "stat", "listdir", "chdir", "open", "chmod", "chown", "mkdir",
+        "remove", "unlink", "rmdir", "utime", "lchown", "chroot", "lstat",
+        "startfile", "mkfifo", "mknod", "pathconf", "access"
+    ]:
+        if hasattr(_os, name):
+            locals()[name] = _mk_single_path_wrapper(name)
+
+    def _mk_single_with_return(name):
+        original = getattr(_os, name)
+
+        def wrap(self, path, *args, **kw):
+            if self._active:
+                path = self._remap_input(name, path, *args, **kw)
+                return self._remap_output(name, original(path, *args, **kw))
+            return original(path, *args, **kw)
+
+        return wrap
+
+    for name in ['readlink', 'tempnam']:
+        if hasattr(_os, name):
+            locals()[name] = _mk_single_with_return(name)
+
+    def _mk_query(name):
+        original = getattr(_os, name)
+
+        def wrap(self, *args, **kw):
+            retval = original(*args, **kw)
+            if self._active:
+                return self._remap_output(name, retval)
+            return retval
+
+        return wrap
+
+    for name in ['getcwd', 'tmpnam']:
+        if hasattr(_os, name):
+            locals()[name] = _mk_query(name)
+
+    def _validate_path(self, path):
+        """Called to remap or validate any path, whether input or output"""
+        return path
+
+    def _remap_input(self, operation, path, *args, **kw):
+        """Called for path inputs"""
+        return self._validate_path(path)
+
+    def _remap_output(self, operation, path):
+        """Called for path outputs"""
+        return self._validate_path(path)
+
+    def _remap_pair(self, operation, src, dst, *args, **kw):
+        """Called for path pairs like rename, link, and symlink operations"""
+        return (
+            self._remap_input(operation + '-from', src, *args, **kw),
+            self._remap_input(operation + '-to', dst, *args, **kw)
+        )
+
+
+if hasattr(os, 'devnull'):
+    _EXCEPTIONS = [os.devnull,]
+else:
+    _EXCEPTIONS = []
+
+
+class DirectorySandbox(AbstractSandbox):
+    """Restrict operations to a single subdirectory - pseudo-chroot"""
+
+    write_ops = dict.fromkeys([
+        "open", "chmod", "chown", "mkdir", "remove", "unlink", "rmdir",
+        "utime", "lchown", "chroot", "mkfifo", "mknod", "tempnam",
+    ])
+
+    _exception_patterns = [
+        # Allow lib2to3 to attempt to save a pickled grammar object (#121)
+        r'.*lib2to3.*\.pickle$',
+    ]
+    "exempt writing to paths that match the pattern"
+
+    def __init__(self, sandbox, exceptions=_EXCEPTIONS):
+        self._sandbox = os.path.normcase(os.path.realpath(sandbox))
+        self._prefix = os.path.join(self._sandbox, '')
+        self._exceptions = [
+            os.path.normcase(os.path.realpath(path))
+            for path in exceptions
+        ]
+        AbstractSandbox.__init__(self)
+
+    def _violation(self, operation, *args, **kw):
+        from setuptools.sandbox import SandboxViolation
+        raise SandboxViolation(operation, args, kw)
+
+    if _file:
+
+        def _file(self, path, mode='r', *args, **kw):
+            if mode not in ('r', 'rt', 'rb', 'rU', 'U') and not self._ok(path):
+                self._violation("file", path, mode, *args, **kw)
+            return _file(path, mode, *args, **kw)
+
+    def _open(self, path, mode='r', *args, **kw):
+        if mode not in ('r', 'rt', 'rb', 'rU', 'U') and not self._ok(path):
+            self._violation("open", path, mode, *args, **kw)
+        return _open(path, mode, *args, **kw)
+
+    def tmpnam(self):
+        self._violation("tmpnam")
+
+    def _ok(self, path):
+        active = self._active
+        try:
+            self._active = False
+            realpath = os.path.normcase(os.path.realpath(path))
+            return (
+                self._exempted(realpath)
+                or realpath == self._sandbox
+                or realpath.startswith(self._prefix)
+            )
+        finally:
+            self._active = active
+
+    def _exempted(self, filepath):
+        start_matches = (
+            filepath.startswith(exception)
+            for exception in self._exceptions
+        )
+        pattern_matches = (
+            re.match(pattern, filepath)
+            for pattern in self._exception_patterns
+        )
+        candidates = itertools.chain(start_matches, pattern_matches)
+        return any(candidates)
+
+    def _remap_input(self, operation, path, *args, **kw):
+        """Called for path inputs"""
+        if operation in self.write_ops and not self._ok(path):
+            self._violation(operation, os.path.realpath(path), *args, **kw)
+        return path
+
+    def _remap_pair(self, operation, src, dst, *args, **kw):
+        """Called for path pairs like rename, link, and symlink operations"""
+        if not self._ok(src) or not self._ok(dst):
+            self._violation(operation, src, dst, *args, **kw)
+        return (src, dst)
+
+    def open(self, file, flags, mode=0o777, *args, **kw):
+        """Called for low-level os.open()"""
+        if flags & WRITE_FLAGS and not self._ok(file):
+            self._violation("os.open", file, flags, mode, *args, **kw)
+        return _os.open(file, flags, mode, *args, **kw)
+
+
+WRITE_FLAGS = functools.reduce(
+    operator.or_, [getattr(_os, a, 0) for a in
+        "O_WRONLY O_RDWR O_APPEND O_CREAT O_TRUNC O_TEMPORARY".split()]
+)
+
+
+class SandboxViolation(DistutilsError):
+    """A setup script attempted to modify the filesystem outside the sandbox"""
+
+    tmpl = textwrap.dedent("""
+        SandboxViolation: {cmd}{args!r} {kwargs}
+
+        The package setup script has attempted to modify files on your system
+        that are not within the EasyInstall build area, and has been aborted.
+
+        This package cannot be safely installed by EasyInstall, and may not
+        support alternate installation locations even if you run its setup
+        script by hand.  Please inform the package's author and the EasyInstall
+        maintainers to find out if a fix or workaround is available.
+        """).lstrip()
+
+    def __str__(self):
+        cmd, args, kwargs = self.args
+        return self.tmpl.format(**locals())
diff --git a/venv/lib/python3.5/site-packages/setuptools/script (dev).tmpl b/venv/lib/python3.5/site-packages/setuptools/script (dev).tmpl
new file mode 100644
index 0000000..d58b1bb
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/script (dev).tmpl	
@@ -0,0 +1,5 @@
+# EASY-INSTALL-DEV-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').require(%(spec)r)
+__file__ = %(dev_path)r
+exec(compile(open(__file__).read(), __file__, 'exec'))
diff --git a/venv/lib/python3.5/site-packages/setuptools/script.tmpl b/venv/lib/python3.5/site-packages/setuptools/script.tmpl
new file mode 100644
index 0000000..ff5efbc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/script.tmpl
@@ -0,0 +1,3 @@
+# EASY-INSTALL-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').run_script(%(spec)r, %(script_name)r)
diff --git a/venv/lib/python3.5/site-packages/setuptools/site-patch.py b/venv/lib/python3.5/site-packages/setuptools/site-patch.py
new file mode 100644
index 0000000..0d2d2ff
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/site-patch.py
@@ -0,0 +1,74 @@
+def __boot():
+    import sys
+    import os
+    PYTHONPATH = os.environ.get('PYTHONPATH')
+    if PYTHONPATH is None or (sys.platform == 'win32' and not PYTHONPATH):
+        PYTHONPATH = []
+    else:
+        PYTHONPATH = PYTHONPATH.split(os.pathsep)
+
+    pic = getattr(sys, 'path_importer_cache', {})
+    stdpath = sys.path[len(PYTHONPATH):]
+    mydir = os.path.dirname(__file__)
+
+    for item in stdpath:
+        if item == mydir or not item:
+            continue  # skip if current dir. on Windows, or my own directory
+        importer = pic.get(item)
+        if importer is not None:
+            loader = importer.find_module('site')
+            if loader is not None:
+                # This should actually reload the current module
+                loader.load_module('site')
+                break
+        else:
+            try:
+                import imp  # Avoid import loop in Python >= 3.3
+                stream, path, descr = imp.find_module('site', [item])
+            except ImportError:
+                continue
+            if stream is None:
+                continue
+            try:
+                # This should actually reload the current module
+                imp.load_module('site', stream, path, descr)
+            finally:
+                stream.close()
+            break
+    else:
+        raise ImportError("Couldn't find the real 'site' module")
+
+    known_paths = dict([(makepath(item)[1], 1) for item in sys.path])  # 2.2 comp
+
+    oldpos = getattr(sys, '__egginsert', 0)  # save old insertion position
+    sys.__egginsert = 0  # and reset the current one
+
+    for item in PYTHONPATH:
+        addsitedir(item)
+
+    sys.__egginsert += oldpos  # restore effective old position
+
+    d, nd = makepath(stdpath[0])
+    insert_at = None
+    new_path = []
+
+    for item in sys.path:
+        p, np = makepath(item)
+
+        if np == nd and insert_at is None:
+            # We've hit the first 'system' path entry, so added entries go here
+            insert_at = len(new_path)
+
+        if np in known_paths or insert_at is None:
+            new_path.append(item)
+        else:
+            # new path after the insert point, back-insert it
+            new_path.insert(insert_at, item)
+            insert_at += 1
+
+    sys.path[:] = new_path
+
+
+if __name__ == 'site':
+    __boot()
+    del __boot
diff --git a/venv/lib/python3.5/site-packages/setuptools/ssl_support.py b/venv/lib/python3.5/site-packages/setuptools/ssl_support.py
new file mode 100644
index 0000000..6362f1f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/ssl_support.py
@@ -0,0 +1,260 @@
+import os
+import socket
+import atexit
+import re
+import functools
+
+from setuptools.extern.six.moves import urllib, http_client, map, filter
+
+from pkg_resources import ResolutionError, ExtractionError
+
+try:
+    import ssl
+except ImportError:
+    ssl = None
+
+__all__ = [
+    'VerifyingHTTPSHandler', 'find_ca_bundle', 'is_available', 'cert_paths',
+    'opener_for'
+]
+
+cert_paths = """
+/etc/pki/tls/certs/ca-bundle.crt
+/etc/ssl/certs/ca-certificates.crt
+/usr/share/ssl/certs/ca-bundle.crt
+/usr/local/share/certs/ca-root.crt
+/etc/ssl/cert.pem
+/System/Library/OpenSSL/certs/cert.pem
+/usr/local/share/certs/ca-root-nss.crt
+/etc/ssl/ca-bundle.pem
+""".strip().split()
+
+try:
+    HTTPSHandler = urllib.request.HTTPSHandler
+    HTTPSConnection = http_client.HTTPSConnection
+except AttributeError:
+    HTTPSHandler = HTTPSConnection = object
+
+is_available = ssl is not None and object not in (HTTPSHandler, HTTPSConnection)
+
+
+try:
+    from ssl import CertificateError, match_hostname
+except ImportError:
+    try:
+        from backports.ssl_match_hostname import CertificateError
+        from backports.ssl_match_hostname import match_hostname
+    except ImportError:
+        CertificateError = None
+        match_hostname = None
+
+if not CertificateError:
+
+    class CertificateError(ValueError):
+        pass
+
+
+if not match_hostname:
+
+    def _dnsname_match(dn, hostname, max_wildcards=1):
+        """Matching according to RFC 6125, section 6.4.3
+
+        http://tools.ietf.org/html/rfc6125#section-6.4.3
+        """
+        pats = []
+        if not dn:
+            return False
+
+        # Ported from python3-syntax:
+        # leftmost, *remainder = dn.split(r'.')
+        parts = dn.split(r'.')
+        leftmost = parts[0]
+        remainder = parts[1:]
+
+        wildcards = leftmost.count('*')
+        if wildcards > max_wildcards:
+            # Issue #17980: avoid denials of service by refusing more
+            # than one wildcard per fragment.  A survey of established
+            # policy among SSL implementations showed it to be a
+            # reasonable choice.
+            raise CertificateError(
+                "too many wildcards in certificate DNS name: " + repr(dn))
+
+        # speed up common case w/o wildcards
+        if not wildcards:
+            return dn.lower() == hostname.lower()
+
+        # RFC 6125, section 6.4.3, subitem 1.
+        # The client SHOULD NOT attempt to match a presented identifier in which
+        # the wildcard character comprises a label other than the left-most label.
+        if leftmost == '*':
+            # When '*' is a fragment by itself, it matches a non-empty dotless
+            # fragment.
+            pats.append('[^.]+')
+        elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+            # RFC 6125, section 6.4.3, subitem 3.
+            # The client SHOULD NOT attempt to match a presented identifier
+            # where the wildcard character is embedded within an A-label or
+            # U-label of an internationalized domain name.
+            pats.append(re.escape(leftmost))
+        else:
+            # Otherwise, '*' matches any dotless string, e.g. www*
+            pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+        # add the remaining fragments, ignore any wildcards
+        for frag in remainder:
+            pats.append(re.escape(frag))
+
+        pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+        return pat.match(hostname)
+
+    def match_hostname(cert, hostname):
+        """Verify that *cert* (in decoded format as returned by
+        SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+        rules are followed, but IP addresses are not accepted for *hostname*.
+
+        CertificateError is raised on failure. On success, the function
+        returns nothing.
+        """
+        if not cert:
+            raise ValueError("empty or no certificate")
+        dnsnames = []
+        san = cert.get('subjectAltName', ())
+        for key, value in san:
+            if key == 'DNS':
+                if _dnsname_match(value, hostname):
+                    return
+                dnsnames.append(value)
+        if not dnsnames:
+            # The subject is only checked when there is no dNSName entry
+            # in subjectAltName
+            for sub in cert.get('subject', ()):
+                for key, value in sub:
+                    # XXX according to RFC 2818, the most specific Common Name
+                    # must be used.
+                    if key == 'commonName':
+                        if _dnsname_match(value, hostname):
+                            return
+                        dnsnames.append(value)
+        if len(dnsnames) > 1:
+            raise CertificateError("hostname %r "
+                "doesn't match either of %s"
+                % (hostname, ', '.join(map(repr, dnsnames))))
+        elif len(dnsnames) == 1:
+            raise CertificateError("hostname %r "
+                "doesn't match %r"
+                % (hostname, dnsnames[0]))
+        else:
+            raise CertificateError("no appropriate commonName or "
+                "subjectAltName fields were found")
+
+
+class VerifyingHTTPSHandler(HTTPSHandler):
+    """Simple verifying handler: no auth, subclasses, timeouts, etc."""
+
+    def __init__(self, ca_bundle):
+        self.ca_bundle = ca_bundle
+        HTTPSHandler.__init__(self)
+
+    def https_open(self, req):
+        return self.do_open(
+            lambda host, **kw: VerifyingHTTPSConn(host, self.ca_bundle, **kw), req
+        )
+
+
+class VerifyingHTTPSConn(HTTPSConnection):
+    """Simple verifying connection: no auth, subclasses, timeouts, etc."""
+
+    def __init__(self, host, ca_bundle, **kw):
+        HTTPSConnection.__init__(self, host, **kw)
+        self.ca_bundle = ca_bundle
+
+    def connect(self):
+        sock = socket.create_connection(
+            (self.host, self.port), getattr(self, 'source_address', None)
+        )
+
+        # Handle the socket if a (proxy) tunnel is present
+        if hasattr(self, '_tunnel') and getattr(self, '_tunnel_host', None):
+            self.sock = sock
+            self._tunnel()
+            # http://bugs.python.org/issue7776: Python>=3.4.1 and >=2.7.7
+            # change self.host to mean the proxy server host when tunneling is
+            # being used. Adapt, since we are interested in the destination
+            # host for the match_hostname() comparison.
+            actual_host = self._tunnel_host
+        else:
+            actual_host = self.host
+
+        if hasattr(ssl, 'create_default_context'):
+            ctx = ssl.create_default_context(cafile=self.ca_bundle)
+            self.sock = ctx.wrap_socket(sock, server_hostname=actual_host)
+        else:
+            # This is for python < 2.7.9 and < 3.4?
+            self.sock = ssl.wrap_socket(
+                sock, cert_reqs=ssl.CERT_REQUIRED, ca_certs=self.ca_bundle
+            )
+        try:
+            match_hostname(self.sock.getpeercert(), actual_host)
+        except CertificateError:
+            self.sock.shutdown(socket.SHUT_RDWR)
+            self.sock.close()
+            raise
+
+
+def opener_for(ca_bundle=None):
+    """Get a urlopen() replacement that uses ca_bundle for verification"""
+    return urllib.request.build_opener(
+        VerifyingHTTPSHandler(ca_bundle or find_ca_bundle())
+    ).open
+
+
+# from jaraco.functools
+def once(func):
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        if not hasattr(func, 'always_returns'):
+            func.always_returns = func(*args, **kwargs)
+        return func.always_returns
+    return wrapper
+
+
+@once
+def get_win_certfile():
+    try:
+        import wincertstore
+    except ImportError:
+        return None
+
+    class CertFile(wincertstore.CertFile):
+        def __init__(self):
+            super(CertFile, self).__init__()
+            atexit.register(self.close)
+
+        def close(self):
+            try:
+                super(CertFile, self).close()
+            except OSError:
+                pass
+
+    _wincerts = CertFile()
+    _wincerts.addstore('CA')
+    _wincerts.addstore('ROOT')
+    return _wincerts.name
+
+
+def find_ca_bundle():
+    """Return an existing CA bundle path, or None"""
+    extant_cert_paths = filter(os.path.isfile, cert_paths)
+    return (
+        get_win_certfile()
+        or next(extant_cert_paths, None)
+        or _certifi_where()
+    )
+
+
+def _certifi_where():
+    try:
+        return __import__('certifi').where()
+    except (ImportError, ResolutionError, ExtractionError):
+        pass
diff --git a/venv/lib/python3.5/site-packages/setuptools/unicode_utils.py b/venv/lib/python3.5/site-packages/setuptools/unicode_utils.py
new file mode 100644
index 0000000..7c63efd
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/unicode_utils.py
@@ -0,0 +1,44 @@
+import unicodedata
+import sys
+
+from setuptools.extern import six
+
+
+# HFS Plus uses decomposed UTF-8
+def decompose(path):
+    if isinstance(path, six.text_type):
+        return unicodedata.normalize('NFD', path)
+    try:
+        path = path.decode('utf-8')
+        path = unicodedata.normalize('NFD', path)
+        path = path.encode('utf-8')
+    except UnicodeError:
+        pass  # Not UTF-8
+    return path
+
+
+def filesys_decode(path):
+    """
+    Ensure that the given path is decoded,
+    NONE when no expected encoding works
+    """
+
+    if isinstance(path, six.text_type):
+        return path
+
+    fs_enc = sys.getfilesystemencoding() or 'utf-8'
+    candidates = fs_enc, 'utf-8'
+
+    for enc in candidates:
+        try:
+            return path.decode(enc)
+        except UnicodeDecodeError:
+            continue
+
+
+def try_encode(string, enc):
+    "turn unicode encoding into a functional routine"
+    try:
+        return string.encode(enc)
+    except UnicodeEncodeError:
+        return None
diff --git a/venv/lib/python3.5/site-packages/setuptools/version.py b/venv/lib/python3.5/site-packages/setuptools/version.py
new file mode 100644
index 0000000..95e1869
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/version.py
@@ -0,0 +1,6 @@
+import pkg_resources
+
+try:
+    __version__ = pkg_resources.get_distribution('setuptools').version
+except Exception:
+    __version__ = 'unknown'
diff --git a/venv/lib/python3.5/site-packages/setuptools/wheel.py b/venv/lib/python3.5/site-packages/setuptools/wheel.py
new file mode 100644
index 0000000..9ffe434
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/wheel.py
@@ -0,0 +1,163 @@
+'''Wheels support.'''
+
+from distutils.util import get_platform
+import email
+import itertools
+import os
+import re
+import zipfile
+
+from pkg_resources import Distribution, PathMetadata, parse_version
+from pkg_resources.extern.six import PY3
+from setuptools import Distribution as SetuptoolsDistribution
+from setuptools import pep425tags
+from setuptools.command.egg_info import write_requirements
+
+
+WHEEL_NAME = re.compile(
+    r"""^(?P<project_name>.+?)-(?P<version>\d.*?)
+    ((-(?P<build>\d.*?))?-(?P<py_version>.+?)-(?P<abi>.+?)-(?P<platform>.+?)
+    )\.whl$""",
+re.VERBOSE).match
+
+NAMESPACE_PACKAGE_INIT = '''\
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    __path__ = __import__('pkgutil').extend_path(__path__, __name__)
+'''
+
+
+def unpack(src_dir, dst_dir):
+    '''Move everything under `src_dir` to `dst_dir`, and delete the former.'''
+    for dirpath, dirnames, filenames in os.walk(src_dir):
+        subdir = os.path.relpath(dirpath, src_dir)
+        for f in filenames:
+            src = os.path.join(dirpath, f)
+            dst = os.path.join(dst_dir, subdir, f)
+            os.renames(src, dst)
+        for n, d in reversed(list(enumerate(dirnames))):
+            src = os.path.join(dirpath, d)
+            dst = os.path.join(dst_dir, subdir, d)
+            if not os.path.exists(dst):
+                # Directory does not exist in destination,
+                # rename it and prune it from os.walk list.
+                os.renames(src, dst)
+                del dirnames[n]
+    # Cleanup.
+    for dirpath, dirnames, filenames in os.walk(src_dir, topdown=True):
+        assert not filenames
+        os.rmdir(dirpath)
+
+
+class Wheel(object):
+
+    def __init__(self, filename):
+        match = WHEEL_NAME(os.path.basename(filename))
+        if match is None:
+            raise ValueError('invalid wheel name: %r' % filename)
+        self.filename = filename
+        for k, v in match.groupdict().items():
+            setattr(self, k, v)
+
+    def tags(self):
+        '''List tags (py_version, abi, platform) supported by this wheel.'''
+        return itertools.product(self.py_version.split('.'),
+                                 self.abi.split('.'),
+                                 self.platform.split('.'))
+
+    def is_compatible(self):
+        '''Is the wheel is compatible with the current platform?'''
+        supported_tags = pep425tags.get_supported()
+        return next((True for t in self.tags() if t in supported_tags), False)
+
+    def egg_name(self):
+        return Distribution(
+            project_name=self.project_name, version=self.version,
+            platform=(None if self.platform == 'any' else get_platform()),
+        ).egg_name() + '.egg'
+
+    def install_as_egg(self, destination_eggdir):
+        '''Install wheel as an egg directory.'''
+        with zipfile.ZipFile(self.filename) as zf:
+            dist_basename = '%s-%s' % (self.project_name, self.version)
+            dist_info = '%s.dist-info' % dist_basename
+            dist_data = '%s.data' % dist_basename
+            def get_metadata(name):
+                with zf.open('%s/%s' % (dist_info, name)) as fp:
+                    value = fp.read().decode('utf-8') if PY3 else fp.read()
+                    return email.parser.Parser().parsestr(value)
+            wheel_metadata = get_metadata('WHEEL')
+            dist_metadata = get_metadata('METADATA')
+            # Check wheel format version is supported.
+            wheel_version = parse_version(wheel_metadata.get('Wheel-Version'))
+            if not parse_version('1.0') <= wheel_version < parse_version('2.0dev0'):
+                raise ValueError('unsupported wheel format version: %s' % wheel_version)
+            # Extract to target directory.
+            os.mkdir(destination_eggdir)
+            zf.extractall(destination_eggdir)
+            # Convert metadata.
+            dist_info = os.path.join(destination_eggdir, dist_info)
+            dist = Distribution.from_location(
+                destination_eggdir, dist_info,
+                metadata=PathMetadata(destination_eggdir, dist_info)
+            )
+            # Note: we need to evaluate and strip markers now,
+            # as we can't easily convert back from the syntax:
+            # foobar; "linux" in sys_platform and extra == 'test'
+            def raw_req(req):
+                req.marker = None
+                return str(req)
+            install_requires = list(sorted(map(raw_req, dist.requires())))
+            extras_require = {
+                extra: list(sorted(
+                    req
+                    for req in map(raw_req, dist.requires((extra,)))
+                    if req not in install_requires
+                ))
+                for extra in dist.extras
+            }
+            egg_info = os.path.join(destination_eggdir, 'EGG-INFO')
+            os.rename(dist_info, egg_info)
+            os.rename(os.path.join(egg_info, 'METADATA'),
+                      os.path.join(egg_info, 'PKG-INFO'))
+            setup_dist = SetuptoolsDistribution(attrs=dict(
+                install_requires=install_requires,
+                extras_require=extras_require,
+            ))
+            write_requirements(setup_dist.get_command_obj('egg_info'),
+                               None, os.path.join(egg_info, 'requires.txt'))
+            # Move data entries to their correct location.
+            dist_data = os.path.join(destination_eggdir, dist_data)
+            dist_data_scripts = os.path.join(dist_data, 'scripts')
+            if os.path.exists(dist_data_scripts):
+                egg_info_scripts = os.path.join(destination_eggdir,
+                                                'EGG-INFO', 'scripts')
+                os.mkdir(egg_info_scripts)
+                for entry in os.listdir(dist_data_scripts):
+                    # Remove bytecode, as it's not properly handled
+                    # during easy_install scripts install phase.
+                    if entry.endswith('.pyc'):
+                        os.unlink(os.path.join(dist_data_scripts, entry))
+                    else:
+                        os.rename(os.path.join(dist_data_scripts, entry),
+                                  os.path.join(egg_info_scripts, entry))
+                os.rmdir(dist_data_scripts)
+            for subdir in filter(os.path.exists, (
+                os.path.join(dist_data, d)
+                for d in ('data', 'headers', 'purelib', 'platlib')
+            )):
+                unpack(subdir, destination_eggdir)
+            if os.path.exists(dist_data):
+                os.rmdir(dist_data)
+            # Fix namespace packages.
+            namespace_packages = os.path.join(egg_info, 'namespace_packages.txt')
+            if os.path.exists(namespace_packages):
+                with open(namespace_packages) as fp:
+                    namespace_packages = fp.read().split()
+                for mod in namespace_packages:
+                    mod_dir = os.path.join(destination_eggdir, *mod.split('.'))
+                    mod_init = os.path.join(mod_dir, '__init__.py')
+                    if os.path.exists(mod_dir) and not os.path.exists(mod_init):
+                        with open(mod_init, 'w') as fp:
+                            fp.write(NAMESPACE_PACKAGE_INIT)
diff --git a/venv/lib/python3.5/site-packages/setuptools/windows_support.py b/venv/lib/python3.5/site-packages/setuptools/windows_support.py
new file mode 100644
index 0000000..cb977cf
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/setuptools/windows_support.py
@@ -0,0 +1,29 @@
+import platform
+import ctypes
+
+
+def windows_only(func):
+    if platform.system() != 'Windows':
+        return lambda *args, **kwargs: None
+    return func
+
+
+@windows_only
+def hide_file(path):
+    """
+    Set the hidden attribute on a file or directory.
+
+    From http://stackoverflow.com/questions/19622133/
+
+    `path` must be text.
+    """
+    __import__('ctypes.wintypes')
+    SetFileAttributes = ctypes.windll.kernel32.SetFileAttributesW
+    SetFileAttributes.argtypes = ctypes.wintypes.LPWSTR, ctypes.wintypes.DWORD
+    SetFileAttributes.restype = ctypes.wintypes.BOOL
+
+    FILE_ATTRIBUTE_HIDDEN = 0x02
+
+    ret = SetFileAttributes(path, FILE_ATTRIBUTE_HIDDEN)
+    if not ret:
+        raise ctypes.WinError()
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/DESCRIPTION.rst b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..09c2c99
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/DESCRIPTION.rst
@@ -0,0 +1,27 @@
+.. image:: http://img.shields.io/pypi/v/six.svg
+   :target: https://pypi.python.org/pypi/six
+
+.. image:: https://travis-ci.org/benjaminp/six.svg?branch=master
+    :target: https://travis-ci.org/benjaminp/six
+
+.. image:: http://img.shields.io/badge/license-MIT-green.svg
+   :target: https://github.com/benjaminp/six/blob/master/LICENSE
+
+Six is a Python 2 and 3 compatibility library.  It provides utility functions
+for smoothing over the differences between the Python versions with the goal of
+writing Python code that is compatible on both Python versions.  See the
+documentation for more information on what is provided.
+
+Six supports every Python version since 2.6.  It is contained in only one Python
+file, so it can be easily copied into your project. (The copyright and license
+notice must be retained.)
+
+Online documentation is at http://six.rtfd.org.
+
+Bugs can be reported to https://github.com/benjaminp/six.  The code can also
+be found there.
+
+For questions about six or porting in general, email the python-porting mailing
+list: https://mail.python.org/mailman/listinfo/python-porting
+
+
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/INSTALLER b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/METADATA b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/METADATA
new file mode 100644
index 0000000..04e93dc
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/METADATA
@@ -0,0 +1,43 @@
+Metadata-Version: 2.0
+Name: six
+Version: 1.11.0
+Summary: Python 2 and 3 compatibility utilities
+Home-page: http://pypi.python.org/pypi/six/
+Author: Benjamin Peterson
+Author-email: benjamin@python.org
+License: MIT
+Platform: UNKNOWN
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 3
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Topic :: Software Development :: Libraries
+Classifier: Topic :: Utilities
+
+.. image:: http://img.shields.io/pypi/v/six.svg
+   :target: https://pypi.python.org/pypi/six
+
+.. image:: https://travis-ci.org/benjaminp/six.svg?branch=master
+    :target: https://travis-ci.org/benjaminp/six
+
+.. image:: http://img.shields.io/badge/license-MIT-green.svg
+   :target: https://github.com/benjaminp/six/blob/master/LICENSE
+
+Six is a Python 2 and 3 compatibility library.  It provides utility functions
+for smoothing over the differences between the Python versions with the goal of
+writing Python code that is compatible on both Python versions.  See the
+documentation for more information on what is provided.
+
+Six supports every Python version since 2.6.  It is contained in only one Python
+file, so it can be easily copied into your project. (The copyright and license
+notice must be retained.)
+
+Online documentation is at http://six.rtfd.org.
+
+Bugs can be reported to https://github.com/benjaminp/six.  The code can also
+be found there.
+
+For questions about six or porting in general, email the python-porting mailing
+list: https://mail.python.org/mailman/listinfo/python-porting
+
+
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/RECORD b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/RECORD
new file mode 100644
index 0000000..f42bf2c
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/RECORD
@@ -0,0 +1,9 @@
+six.py,sha256=A08MPb-Gi9FfInI3IW7HimXFmEH2T2IPzHgDvdhZPRA,30888
+six-1.11.0.dist-info/DESCRIPTION.rst,sha256=gPBoq1Ruc1QDWyLeXPlieL3F-XZz1_WXB-5gctCfg-A,1098
+six-1.11.0.dist-info/METADATA,sha256=06nZXaDYN3vnC-pmUjhkECYFH_a--ywvcPIpUdNeH1o,1607
+six-1.11.0.dist-info/RECORD,,
+six-1.11.0.dist-info/WHEEL,sha256=o2k-Qa-RMNIJmUdIc7KU6VWR_ErNRbWNlxDIpl7lm34,110
+six-1.11.0.dist-info/metadata.json,sha256=ac3f4f7MpSHSnZ1SqhHCwsL7FGWMG0gBEb0hhS2eSSM,703
+six-1.11.0.dist-info/top_level.txt,sha256=_iVH_iYEtEXnD8nYGQYpYFUvkUW9sEO1GYbkeKSAais,4
+six-1.11.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+__pycache__/six.cpython-35.pyc,,
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/WHEEL b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/WHEEL
new file mode 100644
index 0000000..8b6dd1b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.29.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/metadata.json b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/metadata.json
new file mode 100644
index 0000000..2c7fcea
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Programming Language :: Python :: 2", "Programming Language :: Python :: 3", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Topic :: Software Development :: Libraries", "Topic :: Utilities"], "extensions": {"python.details": {"contacts": [{"email": "benjamin@python.org", "name": "Benjamin Peterson", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst"}, "project_urls": {"Home": "http://pypi.python.org/pypi/six/"}}}, "generator": "bdist_wheel (0.29.0)", "license": "MIT", "metadata_version": "2.0", "name": "six", "summary": "Python 2 and 3 compatibility utilities", "test_requires": [{"requires": ["pytest"]}], "version": "1.11.0"}
\ No newline at end of file
diff --git a/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/top_level.txt b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/top_level.txt
new file mode 100644
index 0000000..ffe2fce
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six-1.11.0.dist-info/top_level.txt
@@ -0,0 +1 @@
+six
diff --git a/venv/lib/python3.5/site-packages/six.py b/venv/lib/python3.5/site-packages/six.py
new file mode 100644
index 0000000..6bf4fd3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/six.py
@@ -0,0 +1,891 @@
+# Copyright (c) 2010-2017 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.11.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("getoutput", "commands", "subprocess"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("email_mime_image", "email.MIMEImage", "email.mime.image"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_to_bytes", "urllib", "urllib.parse", "unquote", "unquote_to_bytes"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("splitvalue", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+    MovedAttribute("parse_http_list", "urllib2", "urllib.request"),
+    MovedAttribute("parse_keqv_list", "urllib2", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        try:
+            if value is None:
+                value = tp()
+            if value.__traceback__ is not tb:
+                raise value.with_traceback(tb)
+            raise value
+        finally:
+            value = None
+            tb = None
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    try:
+        raise tp, value, tb
+    finally:
+        tb = None
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    try:
+        if from_value is None:
+            raise value
+        raise value from from_value
+    finally:
+        value = None
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    try:
+        raise value from from_value
+    finally:
+        value = None
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(type):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+
+        @classmethod
+        def __prepare__(cls, name, this_bases):
+            return meta.__prepare__(name, bases)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..9f37cad
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst
@@ -0,0 +1,340 @@
+Wheel
+=====
+
+A built-package format for Python.
+
+A wheel is a ZIP-format archive with a specially formatted filename
+and the .whl extension. It is designed to contain all the files for a
+PEP 376 compatible install in a way that is very close to the on-disk
+format. Many packages will be properly installed with only the "Unpack"
+step (simply extracting the file onto sys.path), and the unpacked archive
+preserves enough information to "Spread" (copy data and scripts to their
+final locations) at any later time.
+
+The wheel project provides a `bdist_wheel` command for setuptools
+(requires setuptools >= 0.8.0). Wheel files can be installed with a
+newer `pip` from https://github.com/pypa/pip or with wheel's own command
+line utility.
+
+The wheel documentation is at http://wheel.rtfd.org/. The file format
+is documented in PEP 427 (http://www.python.org/dev/peps/pep-0427/).
+
+The reference implementation is at https://github.com/pypa/wheel
+
+Why not egg?
+------------
+
+Python's egg format predates the packaging related standards we have
+today, the most important being PEP 376 "Database of Installed Python
+Distributions" which specifies the .dist-info directory (instead of
+.egg-info) and PEP 426 "Metadata for Python Software Packages 2.0"
+which specifies how to express dependencies (instead of requires.txt
+in .egg-info).
+
+Wheel implements these things. It also provides a richer file naming
+convention that communicates the Python implementation and ABI as well
+as simply the language version used in a particular package.
+
+Unlike .egg, wheel will be a fully-documented standard at the binary
+level that is truly easy to install even if you do not want to use the
+reference implementation.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the wheel project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
+0.30.0
+======
+- Added py-limited-api {cp32|cp33|cp34|...} flag to produce cpNN.abi3.{arch}
+  tags on CPython 3.
+- Documented the ``license_file`` metadata key
+- Improved Python, abi tagging for `wheel convert`. Thanks Ales Erjavec.
+- Fixed `>` being prepended to lines starting with "From" in the long description
+- Added support for specifying a build number (as per PEP 427).
+  Thanks Ian Cordasco.
+- Made the order of files in generated ZIP files deterministic.
+  Thanks Matthias Bach.
+- Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
+- Fixed `wheel install` clobbering existing files
+- Improved the error message when trying to verify an unsigned wheel file
+- Removed support for Python 2.6, 3.2 and 3.3.
+
+0.29.0
+======
+- Fix compression type of files in archive (Issue #155, Pull Request #62,
+  thanks Xavier Fernandez)
+
+0.28.0
+======
+- Fix file modes in archive (Issue #154)
+
+0.27.0
+======
+- Support forcing a platform tag using `--plat-name` on pure-Python wheels, as
+  well as nonstandard platform tags on non-pure wheels (Pull Request #60, Issue
+  #144, thanks Andrés Díaz)
+- Add SOABI tags to platform-specific wheels built for Python 2.X (Pull Request
+  #55, Issue #63, Issue #101)
+- Support reproducible wheel files, wheels that can be rebuilt and will hash to
+  the same values as previous builds (Pull Request #52, Issue #143, thanks
+  Barry Warsaw)
+- Support for changes in keyring >= 8.0 (Pull Request #61, thanks Jason R.
+  Coombs)
+- Use the file context manager when checking if dependency_links.txt is empty,
+  fixes problems building wheels under PyPy on Windows  (Issue #150, thanks
+  Cosimo Lupo)
+- Don't attempt to (recursively) create a build directory ending with `..`
+  (invalid on all platforms, but code was only executed on Windows) (Issue #91)
+- Added the PyPA Code of Conduct (Pull Request #56)
+
+0.26.0
+======
+- Fix multiple entrypoint comparison failure on Python 3 (Issue #148)
+
+0.25.0
+======
+- Add Python 3.5 to tox configuration
+- Deterministic (sorted) metadata
+- Fix tagging for Python 3.5 compatibility
+- Support py2-none-'arch' and py3-none-'arch' tags
+- Treat data-only wheels as pure
+- Write to temporary file and rename when using wheel install --force
+
+0.24.0
+======
+- The python tag used for pure-python packages is now .pyN (major version
+  only). This change actually occurred in 0.23.0 when the --python-tag
+  option was added, but was not explicitly mentioned in the changelog then.
+- wininst2wheel and egg2wheel removed. Use "wheel convert [archive]"
+  instead.
+- Wheel now supports setuptools style conditional requirements via the
+  extras_require={} syntax. Separate 'extra' names from conditions using
+  the : character. Wheel's own setup.py does this. (The empty-string
+  extra is the same as install_requires.) These conditional requirements
+  should work the same whether the package is installed by wheel or
+  by setup.py.
+
+0.23.0
+======
+- Compatibility tag flags added to the bdist_wheel command
+- sdist should include files necessary for tests
+- 'wheel convert' can now also convert unpacked eggs to wheel
+- Rename pydist.json to metadata.json to avoid stepping on the PEP
+- The --skip-scripts option has been removed, and not generating scripts is now
+  the default. The option was a temporary approach until installers could
+  generate scripts themselves. That is now the case with pip 1.5 and later.
+  Note that using pip 1.4 to install a wheel without scripts will leave the
+  installation without entry-point wrappers. The "wheel install-scripts"
+  command can be used to generate the scripts in such cases.
+- Thank you contributors
+
+0.22.0
+======
+- Include entry_points.txt, scripts a.k.a. commands, in experimental
+  pydist.json
+- Improved test_requires parsing
+- Python 2.6 fixes, "wheel version" command courtesy pombredanne
+
+0.21.0
+======
+- Pregenerated scripts are the default again.
+- "setup.py bdist_wheel --skip-scripts" turns them off.
+- setuptools is no longer a listed requirement for the 'wheel'
+  package. It is of course still required in order for bdist_wheel
+  to work.
+- "python -m wheel" avoids importing pkg_resources until it's necessary.
+
+0.20.0
+======
+- No longer include console_scripts in wheels. Ordinary scripts (shell files,
+  standalone Python files) are included as usual.
+- Include new command "python -m wheel install-scripts [distribution
+  [distribution ...]]" to install the console_scripts (setuptools-style
+  scripts using pkg_resources) for a distribution.
+
+0.19.0
+======
+- pymeta.json becomes pydist.json
+
+0.18.0
+======
+- Python 3 Unicode improvements
+
+0.17.0
+======
+- Support latest PEP-426 "pymeta.json" (json-format metadata)
+
+0.16.0
+======
+- Python 2.6 compatibility bugfix (thanks John McFarlane)
+- Non-prerelease version number
+
+1.0.0a2
+=======
+- Bugfix for C-extension tags for CPython 3.3 (using SOABI)
+
+1.0.0a1
+=======
+- Bugfix for bdist_wininst converter "wheel convert"
+- Bugfix for dists where "is pure" is None instead of True or False
+
+1.0.0a0
+=======
+- Update for version 1.0 of Wheel (PEP accepted).
+- Python 3 fix for moving Unicode Description to metadata body
+- Include rudimentary API documentation in Sphinx (thanks Kevin Horn)
+
+0.15.0
+======
+- Various improvements
+
+0.14.0
+======
+- Changed the signature format to better comply with the current JWS spec.
+  Breaks all existing signatures.
+- Include ``wheel unsign`` command to remove RECORD.jws from an archive.
+- Put the description in the newly allowed payload section of PKG-INFO
+  (METADATA) files.
+
+0.13.0
+======
+- Use distutils instead of sysconfig to get installation paths; can install
+  headers.
+- Improve WheelFile() sort.
+- Allow bootstrap installs without any pkg_resources.
+
+0.12.0
+======
+- Unit test for wheel.tool.install
+
+0.11.0
+======
+- API cleanup
+
+0.10.3
+======
+- Scripts fixer fix
+
+0.10.2
+======
+- Fix keygen
+
+0.10.1
+======
+- Preserve attributes on install.
+
+0.10.0
+======
+- Include a copy of pkg_resources. Wheel can now install into a virtualenv
+  that does not have distribute (though most packages still require
+  pkg_resources to actually work; wheel install distribute)
+- Define a new setup.cfg section [wheel]. universal=1 will
+  apply the py2.py3-none-any tag for pure python wheels.
+
+0.9.7
+=====
+- Only import dirspec when needed. dirspec is only needed to find the
+  configuration for keygen/signing operations.
+
+0.9.6
+=====
+- requires-dist from setup.cfg overwrites any requirements from setup.py
+  Care must be taken that the requirements are the same in both cases,
+  or just always install from wheel.
+- drop dirspec requirement on win32
+- improved command line utility, adds 'wheel convert [egg or wininst]' to
+  convert legacy binary formats to wheel
+
+0.9.5
+=====
+- Wheel's own wheel file can be executed by Python, and can install itself:
+  ``python wheel-0.9.5-py27-none-any/wheel install ...``
+- Use argparse; basic ``wheel install`` command should run with only stdlib
+  dependencies.
+- Allow requires_dist in setup.cfg's [metadata] section. In addition to
+  dependencies in setup.py, but will only be interpreted when installing
+  from wheel, not from sdist. Can be qualified with environment markers.
+
+0.9.4
+=====
+- Fix wheel.signatures in sdist
+
+0.9.3
+=====
+- Integrated digital signatures support without C extensions.
+- Integrated "wheel install" command (single package, no dependency
+  resolution) including compatibility check.
+- Support Python 3.3
+- Use Metadata 1.3 (PEP 426)
+
+0.9.2
+=====
+- Automatic signing if WHEEL_TOOL points to the wheel binary
+- Even more Python 3 fixes
+
+0.9.1
+=====
+- 'wheel sign' uses the keys generated by 'wheel keygen' (instead of generating
+  a new key at random each time)
+- Python 2/3 encoding/decoding fixes
+- Run tests on Python 2.6 (without signature verification)
+
+0.9
+===
+- Updated digital signatures scheme
+- Python 3 support for digital signatures
+- Always verify RECORD hashes on extract
+- "wheel" command line tool to sign, verify, unpack wheel files
+
+0.8
+===
+- none/any draft pep tags update
+- improved wininst2wheel script
+- doc changes and other improvements
+
+0.7
+===
+- sort .dist-info at end of wheel archive
+- Windows & Python 3 fixes from Paul Moore
+- pep8
+- scripts to convert wininst & egg to wheel
+
+0.6
+===
+- require distribute >= 0.6.28
+- stop using verlib
+
+0.5
+===
+- working pretty well
+
+0.4.2
+=====
+- hyphenated name fix
+
+0.4
+===
+- improve test coverage
+- improve Windows compatibility
+- include tox.ini courtesy of Marc Abramowitz
+- draft hmac sha-256 signing function
+
+0.3
+===
+- prototype egg2wheel conversion script
+
+0.2
+===
+- Python 3 compatibility
+
+0.1
+===
+- Initial version
+
+
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt
new file mode 100644
index 0000000..c3441e6
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt
@@ -0,0 +1,22 @@
+"wheel" copyright (c) 2012-2014 Daniel Holth <dholth@fastmail.fm> and
+contributors.
+
+The MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA
new file mode 100644
index 0000000..52b6411
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA
@@ -0,0 +1,374 @@
+Metadata-Version: 2.0
+Name: wheel
+Version: 0.30.0
+Summary: A built-package format for Python.
+Home-page: https://github.com/pypa/wheel
+Author: Alex Grönholm
+Author-email: alex.gronholm@nextday.fi
+License: MIT
+Description-Content-Type: UNKNOWN
+Keywords: wheel,packaging
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Provides-Extra: faster-signatures
+Requires-Dist: ed25519ll; extra == 'faster-signatures'
+Provides-Extra: signatures
+Requires-Dist: keyring; extra == 'signatures'
+Requires-Dist: keyrings.alt; extra == 'signatures'
+Provides-Extra: signatures
+Requires-Dist: pyxdg; sys_platform!="win32" and extra == 'signatures'
+Provides-Extra: test
+Requires-Dist: jsonschema; extra == 'test'
+Requires-Dist: pytest (>=3.0.0); extra == 'test'
+Requires-Dist: pytest-cov; extra == 'test'
+Provides-Extra: tool
+
+Wheel
+=====
+
+A built-package format for Python.
+
+A wheel is a ZIP-format archive with a specially formatted filename
+and the .whl extension. It is designed to contain all the files for a
+PEP 376 compatible install in a way that is very close to the on-disk
+format. Many packages will be properly installed with only the "Unpack"
+step (simply extracting the file onto sys.path), and the unpacked archive
+preserves enough information to "Spread" (copy data and scripts to their
+final locations) at any later time.
+
+The wheel project provides a `bdist_wheel` command for setuptools
+(requires setuptools >= 0.8.0). Wheel files can be installed with a
+newer `pip` from https://github.com/pypa/pip or with wheel's own command
+line utility.
+
+The wheel documentation is at http://wheel.rtfd.org/. The file format
+is documented in PEP 427 (http://www.python.org/dev/peps/pep-0427/).
+
+The reference implementation is at https://github.com/pypa/wheel
+
+Why not egg?
+------------
+
+Python's egg format predates the packaging related standards we have
+today, the most important being PEP 376 "Database of Installed Python
+Distributions" which specifies the .dist-info directory (instead of
+.egg-info) and PEP 426 "Metadata for Python Software Packages 2.0"
+which specifies how to express dependencies (instead of requires.txt
+in .egg-info).
+
+Wheel implements these things. It also provides a richer file naming
+convention that communicates the Python implementation and ABI as well
+as simply the language version used in a particular package.
+
+Unlike .egg, wheel will be a fully-documented standard at the binary
+level that is truly easy to install even if you do not want to use the
+reference implementation.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the wheel project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
+0.30.0
+======
+- Added py-limited-api {cp32|cp33|cp34|...} flag to produce cpNN.abi3.{arch}
+  tags on CPython 3.
+- Documented the ``license_file`` metadata key
+- Improved Python, abi tagging for `wheel convert`. Thanks Ales Erjavec.
+- Fixed `>` being prepended to lines starting with "From" in the long description
+- Added support for specifying a build number (as per PEP 427).
+  Thanks Ian Cordasco.
+- Made the order of files in generated ZIP files deterministic.
+  Thanks Matthias Bach.
+- Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
+- Fixed `wheel install` clobbering existing files
+- Improved the error message when trying to verify an unsigned wheel file
+- Removed support for Python 2.6, 3.2 and 3.3.
+
+0.29.0
+======
+- Fix compression type of files in archive (Issue #155, Pull Request #62,
+  thanks Xavier Fernandez)
+
+0.28.0
+======
+- Fix file modes in archive (Issue #154)
+
+0.27.0
+======
+- Support forcing a platform tag using `--plat-name` on pure-Python wheels, as
+  well as nonstandard platform tags on non-pure wheels (Pull Request #60, Issue
+  #144, thanks Andrés Díaz)
+- Add SOABI tags to platform-specific wheels built for Python 2.X (Pull Request
+  #55, Issue #63, Issue #101)
+- Support reproducible wheel files, wheels that can be rebuilt and will hash to
+  the same values as previous builds (Pull Request #52, Issue #143, thanks
+  Barry Warsaw)
+- Support for changes in keyring >= 8.0 (Pull Request #61, thanks Jason R.
+  Coombs)
+- Use the file context manager when checking if dependency_links.txt is empty,
+  fixes problems building wheels under PyPy on Windows  (Issue #150, thanks
+  Cosimo Lupo)
+- Don't attempt to (recursively) create a build directory ending with `..`
+  (invalid on all platforms, but code was only executed on Windows) (Issue #91)
+- Added the PyPA Code of Conduct (Pull Request #56)
+
+0.26.0
+======
+- Fix multiple entrypoint comparison failure on Python 3 (Issue #148)
+
+0.25.0
+======
+- Add Python 3.5 to tox configuration
+- Deterministic (sorted) metadata
+- Fix tagging for Python 3.5 compatibility
+- Support py2-none-'arch' and py3-none-'arch' tags
+- Treat data-only wheels as pure
+- Write to temporary file and rename when using wheel install --force
+
+0.24.0
+======
+- The python tag used for pure-python packages is now .pyN (major version
+  only). This change actually occurred in 0.23.0 when the --python-tag
+  option was added, but was not explicitly mentioned in the changelog then.
+- wininst2wheel and egg2wheel removed. Use "wheel convert [archive]"
+  instead.
+- Wheel now supports setuptools style conditional requirements via the
+  extras_require={} syntax. Separate 'extra' names from conditions using
+  the : character. Wheel's own setup.py does this. (The empty-string
+  extra is the same as install_requires.) These conditional requirements
+  should work the same whether the package is installed by wheel or
+  by setup.py.
+
+0.23.0
+======
+- Compatibility tag flags added to the bdist_wheel command
+- sdist should include files necessary for tests
+- 'wheel convert' can now also convert unpacked eggs to wheel
+- Rename pydist.json to metadata.json to avoid stepping on the PEP
+- The --skip-scripts option has been removed, and not generating scripts is now
+  the default. The option was a temporary approach until installers could
+  generate scripts themselves. That is now the case with pip 1.5 and later.
+  Note that using pip 1.4 to install a wheel without scripts will leave the
+  installation without entry-point wrappers. The "wheel install-scripts"
+  command can be used to generate the scripts in such cases.
+- Thank you contributors
+
+0.22.0
+======
+- Include entry_points.txt, scripts a.k.a. commands, in experimental
+  pydist.json
+- Improved test_requires parsing
+- Python 2.6 fixes, "wheel version" command courtesy pombredanne
+
+0.21.0
+======
+- Pregenerated scripts are the default again.
+- "setup.py bdist_wheel --skip-scripts" turns them off.
+- setuptools is no longer a listed requirement for the 'wheel'
+  package. It is of course still required in order for bdist_wheel
+  to work.
+- "python -m wheel" avoids importing pkg_resources until it's necessary.
+
+0.20.0
+======
+- No longer include console_scripts in wheels. Ordinary scripts (shell files,
+  standalone Python files) are included as usual.
+- Include new command "python -m wheel install-scripts [distribution
+  [distribution ...]]" to install the console_scripts (setuptools-style
+  scripts using pkg_resources) for a distribution.
+
+0.19.0
+======
+- pymeta.json becomes pydist.json
+
+0.18.0
+======
+- Python 3 Unicode improvements
+
+0.17.0
+======
+- Support latest PEP-426 "pymeta.json" (json-format metadata)
+
+0.16.0
+======
+- Python 2.6 compatibility bugfix (thanks John McFarlane)
+- Non-prerelease version number
+
+1.0.0a2
+=======
+- Bugfix for C-extension tags for CPython 3.3 (using SOABI)
+
+1.0.0a1
+=======
+- Bugfix for bdist_wininst converter "wheel convert"
+- Bugfix for dists where "is pure" is None instead of True or False
+
+1.0.0a0
+=======
+- Update for version 1.0 of Wheel (PEP accepted).
+- Python 3 fix for moving Unicode Description to metadata body
+- Include rudimentary API documentation in Sphinx (thanks Kevin Horn)
+
+0.15.0
+======
+- Various improvements
+
+0.14.0
+======
+- Changed the signature format to better comply with the current JWS spec.
+  Breaks all existing signatures.
+- Include ``wheel unsign`` command to remove RECORD.jws from an archive.
+- Put the description in the newly allowed payload section of PKG-INFO
+  (METADATA) files.
+
+0.13.0
+======
+- Use distutils instead of sysconfig to get installation paths; can install
+  headers.
+- Improve WheelFile() sort.
+- Allow bootstrap installs without any pkg_resources.
+
+0.12.0
+======
+- Unit test for wheel.tool.install
+
+0.11.0
+======
+- API cleanup
+
+0.10.3
+======
+- Scripts fixer fix
+
+0.10.2
+======
+- Fix keygen
+
+0.10.1
+======
+- Preserve attributes on install.
+
+0.10.0
+======
+- Include a copy of pkg_resources. Wheel can now install into a virtualenv
+  that does not have distribute (though most packages still require
+  pkg_resources to actually work; wheel install distribute)
+- Define a new setup.cfg section [wheel]. universal=1 will
+  apply the py2.py3-none-any tag for pure python wheels.
+
+0.9.7
+=====
+- Only import dirspec when needed. dirspec is only needed to find the
+  configuration for keygen/signing operations.
+
+0.9.6
+=====
+- requires-dist from setup.cfg overwrites any requirements from setup.py
+  Care must be taken that the requirements are the same in both cases,
+  or just always install from wheel.
+- drop dirspec requirement on win32
+- improved command line utility, adds 'wheel convert [egg or wininst]' to
+  convert legacy binary formats to wheel
+
+0.9.5
+=====
+- Wheel's own wheel file can be executed by Python, and can install itself:
+  ``python wheel-0.9.5-py27-none-any/wheel install ...``
+- Use argparse; basic ``wheel install`` command should run with only stdlib
+  dependencies.
+- Allow requires_dist in setup.cfg's [metadata] section. In addition to
+  dependencies in setup.py, but will only be interpreted when installing
+  from wheel, not from sdist. Can be qualified with environment markers.
+
+0.9.4
+=====
+- Fix wheel.signatures in sdist
+
+0.9.3
+=====
+- Integrated digital signatures support without C extensions.
+- Integrated "wheel install" command (single package, no dependency
+  resolution) including compatibility check.
+- Support Python 3.3
+- Use Metadata 1.3 (PEP 426)
+
+0.9.2
+=====
+- Automatic signing if WHEEL_TOOL points to the wheel binary
+- Even more Python 3 fixes
+
+0.9.1
+=====
+- 'wheel sign' uses the keys generated by 'wheel keygen' (instead of generating
+  a new key at random each time)
+- Python 2/3 encoding/decoding fixes
+- Run tests on Python 2.6 (without signature verification)
+
+0.9
+===
+- Updated digital signatures scheme
+- Python 3 support for digital signatures
+- Always verify RECORD hashes on extract
+- "wheel" command line tool to sign, verify, unpack wheel files
+
+0.8
+===
+- none/any draft pep tags update
+- improved wininst2wheel script
+- doc changes and other improvements
+
+0.7
+===
+- sort .dist-info at end of wheel archive
+- Windows & Python 3 fixes from Paul Moore
+- pep8
+- scripts to convert wininst & egg to wheel
+
+0.6
+===
+- require distribute >= 0.6.28
+- stop using verlib
+
+0.5
+===
+- working pretty well
+
+0.4.2
+=====
+- hyphenated name fix
+
+0.4
+===
+- improve test coverage
+- improve Windows compatibility
+- include tox.ini courtesy of Marc Abramowitz
+- draft hmac sha-256 signing function
+
+0.3
+===
+- prototype egg2wheel conversion script
+
+0.2
+===
+- Python 3 compatibility
+
+0.1
+===
+- Initial version
+
+
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD
new file mode 100644
index 0000000..62dbc15
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD
@@ -0,0 +1,46 @@
+wheel/__init__.py,sha256=ja92NKda3sstt4uKroYgFATu736whcI33p3GJNdslLQ,96
+wheel/__main__.py,sha256=K--m7mq-27NO0fm-a8KlthkucCe0w_-0hVxL3uDujkU,419
+wheel/archive.py,sha256=oEv42UnpxkoFMKcLXQ9RD8a8oic4X3oe2_H5FAgJ7_M,2376
+wheel/bdist_wheel.py,sha256=qKWdyvpkdmuLB4_GGIZsjmlcMLZuZDd8tRvaQI0w_eo,18852
+wheel/decorator.py,sha256=U2K77ZZ8x3x5vSIGCcEeh8GAxB6rABB7AlDwRukaoCk,541
+wheel/egg2wheel.py,sha256=me4Iaz4idCvS-xjfAzfb2dXXlXx_w6AgLjH6hi1Bt1A,3043
+wheel/install.py,sha256=zYQ-A8uQi-R2PwMvOh64YMlQDplqYpcBVM0EmbxZu8Y,18417
+wheel/metadata.py,sha256=SzI1MtzITZJuAJuvUVzEWi60VhgDbXSV_hapyiX0rlw,11561
+wheel/paths.py,sha256=OAtaJgCivlKvJKw1qC3YbJypvp2d38Eka8GQWdBWNZw,1129
+wheel/pep425tags.py,sha256=Lk9zYm1rrHG1X3RKlf9plcwpsoSZT8UR7fG3jhaoZrQ,5760
+wheel/pkginfo.py,sha256=GR76kupQzn1x9sKDaXuE6B6FsZ4OkfRtG7pndlXPvQ4,1257
+wheel/util.py,sha256=eJB-mrhMAaCGcoKhTLDYdpCf5N8BMLtX4usW_7qeZBg,4732
+wheel/wininst2wheel.py,sha256=afPAHWwa7FY0IkpG-BuuuY-dlB93VmFPrXff511NkBk,7772
+wheel/signatures/__init__.py,sha256=O7kZICZvXxN5YRkCYrPmAEr1LpGaZKJh5sLPWIRIoYE,3766
+wheel/signatures/djbec.py,sha256=jnfWxdS7dwLjiO6n0hy-4jLa_71SPrKWL0-7ocDrSHc,7035
+wheel/signatures/ed25519py.py,sha256=nFKDMq4LW2iJKk4IZKMxY46GyZNYPKxuWha9xYHk9lE,1669
+wheel/signatures/keys.py,sha256=k4j4yGZL31Dt2pa5TneIEeq6qkVIXEPExmFxiZxpE1Y,3299
+wheel/tool/__init__.py,sha256=rOy5VFvj-gTKgMwi_u2_iNu_Pq6aqw4rEfaciDTbmwg,13421
+wheel-0.30.0.dist-info/DESCRIPTION.rst,sha256=Alb3Ol--LhPgmWuBBPfzu54xzQ8J2skWNV34XCjhe0k,10549
+wheel-0.30.0.dist-info/LICENSE.txt,sha256=zKniDGrx_Pv2lAjzd3aShsvuvN7TNhAMm0o_NfvmNeQ,1125
+wheel-0.30.0.dist-info/METADATA,sha256=fYLxr6baQD-wDn4Yu8t-8fF7PJuiBTcThsl2UKBE7kg,11815
+wheel-0.30.0.dist-info/RECORD,,
+wheel-0.30.0.dist-info/WHEEL,sha256=kdsN-5OJAZIiHN-iO4Rhl82KyS0bDWf4uBwMbkNafr8,110
+wheel-0.30.0.dist-info/entry_points.txt,sha256=pTyeGVsucyfr_BXe5OQKuA1Bp5YKaIAWy5pejkq4Qx0,109
+wheel-0.30.0.dist-info/metadata.json,sha256=neXQocJnVqPTjr4zpuOVdxBGCmjrTsOs76AvP8ngyJY,1522
+wheel-0.30.0.dist-info/top_level.txt,sha256=HxSBIbgEstMPe4eFawhA66Mq-QYHMopXVoAncfjb_1c,6
+../../../bin/wheel,sha256=zb2SqMiSxMryA_aOvciNxr5oM1dch_t_gaQhmKp8Msc,256
+wheel-0.30.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+wheel/signatures/__pycache__/keys.cpython-35.pyc,,
+wheel/__pycache__/egg2wheel.cpython-35.pyc,,
+wheel/__pycache__/__init__.cpython-35.pyc,,
+wheel/signatures/__pycache__/ed25519py.cpython-35.pyc,,
+wheel/__pycache__/wininst2wheel.cpython-35.pyc,,
+wheel/signatures/__pycache__/__init__.cpython-35.pyc,,
+wheel/__pycache__/paths.cpython-35.pyc,,
+wheel/__pycache__/archive.cpython-35.pyc,,
+wheel/__pycache__/bdist_wheel.cpython-35.pyc,,
+wheel/__pycache__/__main__.cpython-35.pyc,,
+wheel/__pycache__/decorator.cpython-35.pyc,,
+wheel/__pycache__/pep425tags.cpython-35.pyc,,
+wheel/__pycache__/pkginfo.cpython-35.pyc,,
+wheel/tool/__pycache__/__init__.cpython-35.pyc,,
+wheel/__pycache__/install.cpython-35.pyc,,
+wheel/__pycache__/metadata.cpython-35.pyc,,
+wheel/signatures/__pycache__/djbec.cpython-35.pyc,,
+wheel/__pycache__/util.cpython-35.pyc,,
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL
new file mode 100644
index 0000000..7332a41
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.30.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt
new file mode 100644
index 0000000..4ad253e
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt
@@ -0,0 +1,6 @@
+[console_scripts]
+wheel = wheel.tool:main
+
+[distutils.commands]
+bdist_wheel = wheel.bdist_wheel:bdist_wheel
+
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json
new file mode 100644
index 0000000..709ccac
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Programming Language :: Python", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6"], "description_content_type": "UNKNOWN", "extensions": {"python.commands": {"wrap_console": {"wheel": "wheel.tool:main"}}, "python.details": {"contacts": [{"email": "alex.gronholm@nextday.fi", "name": "Alex Gr\u00f6nholm", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst", "license": "LICENSE.txt"}, "project_urls": {"Home": "https://github.com/pypa/wheel"}}, "python.exports": {"console_scripts": {"wheel": "wheel.tool:main"}, "distutils.commands": {"bdist_wheel": "wheel.bdist_wheel:bdist_wheel"}}}, "extras": ["faster-signatures", "signatures", "test", "tool"], "generator": "bdist_wheel (0.30.0)", "keywords": ["wheel", "packaging"], "license": "MIT", "metadata_version": "2.0", "name": "wheel", "run_requires": [{"extra": "faster-signatures", "requires": ["ed25519ll"]}, {"extra": "test", "requires": ["jsonschema", "pytest (>=3.0.0)", "pytest-cov"]}, {"extra": "signatures", "requires": ["keyring", "keyrings.alt"]}, {"environment": "sys_platform!=\"win32\"", "extra": "signatures", "requires": ["pyxdg"]}], "summary": "A built-package format for Python.", "version": "0.30.0"}
\ No newline at end of file
diff --git a/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt
new file mode 100644
index 0000000..2309722
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt
@@ -0,0 +1 @@
+wheel
diff --git a/venv/lib/python3.5/site-packages/wheel/__init__.py b/venv/lib/python3.5/site-packages/wheel/__init__.py
new file mode 100644
index 0000000..64cd668
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/__init__.py
@@ -0,0 +1,2 @@
+# __variables__ with double-quoted values will be available in setup.py:
+__version__ = "0.30.0"
diff --git a/venv/lib/python3.5/site-packages/wheel/__main__.py b/venv/lib/python3.5/site-packages/wheel/__main__.py
new file mode 100644
index 0000000..8f0c4fe
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/__main__.py
@@ -0,0 +1,19 @@
+"""
+Wheel command line tool (enable python -m wheel syntax)
+"""
+
+import sys
+
+
+def main():  # needed for console script
+    if __package__ == '':
+        # To be able to run 'python wheel-0.9.whl/wheel':
+        import os.path
+        path = os.path.dirname(os.path.dirname(__file__))
+        sys.path[0:0] = [path]
+    import wheel.tool
+    sys.exit(wheel.tool.main())
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/venv/lib/python3.5/site-packages/wheel/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/wheel/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/wheel/__pycache__/wininst2wheel.cpython-35.pyc b/venv/lib/python3.5/site-packages/wheel/__pycache__/wininst2wheel.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/wheel/archive.py b/venv/lib/python3.5/site-packages/wheel/archive.py
new file mode 100644
index 0000000..5b1647a
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/archive.py
@@ -0,0 +1,80 @@
+"""
+Archive tools for wheel.
+"""
+
+import os
+import os.path
+import time
+import zipfile
+from distutils import log
+
+
+def archive_wheelfile(base_name, base_dir):
+    """Archive all files under `base_dir` in a whl file and name it like
+    `base_name`.
+    """
+    olddir = os.path.abspath(os.curdir)
+    base_name = os.path.abspath(base_name)
+    try:
+        os.chdir(base_dir)
+        return make_wheelfile_inner(base_name)
+    finally:
+        os.chdir(olddir)
+
+
+def make_wheelfile_inner(base_name, base_dir='.'):
+    """Create a whl file from all the files under 'base_dir'.
+
+    Places .dist-info at the end of the archive."""
+
+    zip_filename = base_name + ".whl"
+
+    log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
+
+    # Some applications need reproducible .whl files, but they can't do this
+    # without forcing the timestamp of the individual ZipInfo objects.  See
+    # issue #143.
+    timestamp = os.environ.get('SOURCE_DATE_EPOCH')
+    if timestamp is None:
+        date_time = None
+    else:
+        date_time = time.gmtime(int(timestamp))[0:6]
+
+    # XXX support bz2, xz when available
+    zip = zipfile.ZipFile(zip_filename, "w", compression=zipfile.ZIP_DEFLATED)
+
+    score = {'WHEEL': 1, 'METADATA': 2, 'RECORD': 3}
+    deferred = []
+
+    def writefile(path, date_time):
+        st = os.stat(path)
+        if date_time is None:
+            mtime = time.gmtime(st.st_mtime)
+            date_time = mtime[0:6]
+        zinfo = zipfile.ZipInfo(path, date_time)
+        zinfo.external_attr = st.st_mode << 16
+        zinfo.compress_type = zipfile.ZIP_DEFLATED
+        with open(path, 'rb') as fp:
+            zip.writestr(zinfo, fp.read())
+        log.info("adding '%s'" % path)
+
+    for dirpath, dirnames, filenames in os.walk(base_dir):
+        # Sort the directory names so that `os.walk` will walk them in a
+        # defined order on the next iteration.
+        dirnames.sort()
+        for name in sorted(filenames):
+            path = os.path.normpath(os.path.join(dirpath, name))
+
+            if os.path.isfile(path):
+                if dirpath.endswith('.dist-info'):
+                    deferred.append((score.get(name, 0), path))
+                else:
+                    writefile(path, date_time)
+
+    deferred.sort()
+    for score, path in deferred:
+        writefile(path, date_time)
+
+    zip.close()
+
+    return zip_filename
diff --git a/venv/lib/python3.5/site-packages/wheel/bdist_wheel.py b/venv/lib/python3.5/site-packages/wheel/bdist_wheel.py
new file mode 100644
index 0000000..7fbeb4b
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/bdist_wheel.py
@@ -0,0 +1,482 @@
+"""
+Create a wheel (.whl) distribution.
+
+A wheel is a built archive format.
+"""
+
+import csv
+import hashlib
+import os
+import subprocess
+import warnings
+import shutil
+import json
+import sys
+import re
+from email.generator import Generator
+from distutils.core import Command
+from distutils.sysconfig import get_python_version
+from distutils import log as logger
+from shutil import rmtree
+
+import pkg_resources
+
+from .pep425tags import get_abbr_impl, get_impl_ver, get_abi_tag, get_platform
+from .util import native, open_for_csv
+from .archive import archive_wheelfile
+from .pkginfo import read_pkg_info, write_pkg_info
+from .metadata import pkginfo_to_dict
+from . import pep425tags, metadata
+from . import __version__ as wheel_version
+
+
+safe_name = pkg_resources.safe_name
+safe_version = pkg_resources.safe_version
+
+PY_LIMITED_API_PATTERN = r'cp3\d'
+
+
+def safer_name(name):
+    return safe_name(name).replace('-', '_')
+
+
+def safer_version(version):
+    return safe_version(version).replace('-', '_')
+
+
+class bdist_wheel(Command):
+
+    description = 'create a wheel distribution'
+
+    user_options = [('bdist-dir=', 'b',
+                     "temporary directory for creating the distribution"),
+                    ('plat-name=', 'p',
+                     "platform name to embed in generated filenames "
+                     "(default: %s)" % get_platform()),
+                    ('keep-temp', 'k',
+                     "keep the pseudo-installation tree around after " +
+                     "creating the distribution archive"),
+                    ('dist-dir=', 'd',
+                     "directory to put final built distributions in"),
+                    ('skip-build', None,
+                     "skip rebuilding everything (for testing/debugging)"),
+                    ('relative', None,
+                     "build the archive using relative paths"
+                     "(default: false)"),
+                    ('owner=', 'u',
+                     "Owner name used when creating a tar file"
+                     " [default: current user]"),
+                    ('group=', 'g',
+                     "Group name used when creating a tar file"
+                     " [default: current group]"),
+                    ('universal', None,
+                     "make a universal wheel"
+                     " (default: false)"),
+                    ('python-tag=', None,
+                     "Python implementation compatibility tag"
+                     " (default: py%s)" % get_impl_ver()[0]),
+                    ('build-number=', None,
+                     "Build number for this particular version. "
+                     "As specified in PEP-0427, this must start with a digit. "
+                     "[default: None]"),
+                    ('py-limited-api=', None,
+                     "Python tag (cp32|cp33|cpNN) for abi3 wheel tag"
+                     " (default: false)"),
+                    ]
+
+    boolean_options = ['keep-temp', 'skip-build', 'relative', 'universal']
+
+    def initialize_options(self):
+        self.bdist_dir = None
+        self.data_dir = None
+        self.plat_name = None
+        self.plat_tag = None
+        self.format = 'zip'
+        self.keep_temp = False
+        self.dist_dir = None
+        self.distinfo_dir = None
+        self.egginfo_dir = None
+        self.root_is_pure = None
+        self.skip_build = None
+        self.relative = False
+        self.owner = None
+        self.group = None
+        self.universal = False
+        self.python_tag = 'py' + get_impl_ver()[0]
+        self.build_number = None
+        self.py_limited_api = False
+        self.plat_name_supplied = False
+
+    def finalize_options(self):
+        if self.bdist_dir is None:
+            bdist_base = self.get_finalized_command('bdist').bdist_base
+            self.bdist_dir = os.path.join(bdist_base, 'wheel')
+
+        self.data_dir = self.wheel_dist_name + '.data'
+        self.plat_name_supplied = self.plat_name is not None
+
+        need_options = ('dist_dir', 'plat_name', 'skip_build')
+
+        self.set_undefined_options('bdist',
+                                   *zip(need_options, need_options))
+
+        self.root_is_pure = not (self.distribution.has_ext_modules()
+                                 or self.distribution.has_c_libraries())
+
+        if self.py_limited_api and not re.match(PY_LIMITED_API_PATTERN, self.py_limited_api):
+            raise ValueError("py-limited-api must match '%s'" % PY_LIMITED_API_PATTERN)
+
+        # Support legacy [wheel] section for setting universal
+        wheel = self.distribution.get_option_dict('wheel')
+        if 'universal' in wheel:
+            # please don't define this in your global configs
+            val = wheel['universal'][1].strip()
+            if val.lower() in ('1', 'true', 'yes'):
+                self.universal = True
+
+        if self.build_number is not None and not self.build_number[:1].isdigit():
+            raise ValueError("Build tag (build-number) must start with a digit.")
+
+    @property
+    def wheel_dist_name(self):
+        """Return distribution full name with - replaced with _"""
+        components = (safer_name(self.distribution.get_name()),
+                      safer_version(self.distribution.get_version()))
+        if self.build_number:
+            components += (self.build_number,)
+        return '-'.join(components)
+
+    def get_tag(self):
+        # bdist sets self.plat_name if unset, we should only use it for purepy
+        # wheels if the user supplied it.
+        if self.plat_name_supplied:
+            plat_name = self.plat_name
+        elif self.root_is_pure:
+            plat_name = 'any'
+        else:
+            plat_name = self.plat_name or get_platform()
+            if plat_name in ('linux-x86_64', 'linux_x86_64') and sys.maxsize == 2147483647:
+                plat_name = 'linux_i686'
+        plat_name = plat_name.replace('-', '_').replace('.', '_')
+
+        if self.root_is_pure:
+            if self.universal:
+                impl = 'py2.py3'
+            else:
+                impl = self.python_tag
+            tag = (impl, 'none', plat_name)
+        else:
+            impl_name = get_abbr_impl()
+            impl_ver = get_impl_ver()
+            impl = impl_name + impl_ver
+            # We don't work on CPython 3.1, 3.0.
+            if self.py_limited_api and (impl_name + impl_ver).startswith('cp3'):
+                impl = self.py_limited_api
+                abi_tag = 'abi3'
+            else:
+                abi_tag = str(get_abi_tag()).lower()
+            tag = (impl, abi_tag, plat_name)
+            supported_tags = pep425tags.get_supported(
+                supplied_platform=plat_name if self.plat_name_supplied else None)
+            # XXX switch to this alternate implementation for non-pure:
+            if not self.py_limited_api:
+                assert tag == supported_tags[0], "%s != %s" % (tag, supported_tags[0])
+            assert tag in supported_tags, "would build wheel with unsupported tag {}".format(tag)
+        return tag
+
+    def get_archive_basename(self):
+        """Return archive name without extension"""
+
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+
+        archive_basename = "%s-%s-%s-%s" % (
+            self.wheel_dist_name,
+            impl_tag,
+            abi_tag,
+            plat_tag)
+        return archive_basename
+
+    def run(self):
+        build_scripts = self.reinitialize_command('build_scripts')
+        build_scripts.executable = 'python'
+
+        if not self.skip_build:
+            self.run_command('build')
+
+        install = self.reinitialize_command('install',
+                                            reinit_subcommands=True)
+        install.root = self.bdist_dir
+        install.compile = False
+        install.skip_build = self.skip_build
+        install.warn_dir = False
+
+        # A wheel without setuptools scripts is more cross-platform.
+        # Use the (undocumented) `no_ep` option to setuptools'
+        # install_scripts command to avoid creating entry point scripts.
+        install_scripts = self.reinitialize_command('install_scripts')
+        install_scripts.no_ep = True
+
+        # Use a custom scheme for the archive, because we have to decide
+        # at installation time which scheme to use.
+        for key in ('headers', 'scripts', 'data', 'purelib', 'platlib'):
+            setattr(install,
+                    'install_' + key,
+                    os.path.join(self.data_dir, key))
+
+        basedir_observed = ''
+
+        if os.name == 'nt':
+            # win32 barfs if any of these are ''; could be '.'?
+            # (distutils.command.install:change_roots bug)
+            basedir_observed = os.path.normpath(os.path.join(self.data_dir, '..'))
+            self.install_libbase = self.install_lib = basedir_observed
+
+        setattr(install,
+                'install_purelib' if self.root_is_pure else 'install_platlib',
+                basedir_observed)
+
+        logger.info("installing to %s", self.bdist_dir)
+
+        self.run_command('install')
+
+        archive_basename = self.get_archive_basename()
+
+        pseudoinstall_root = os.path.join(self.dist_dir, archive_basename)
+        if not self.relative:
+            archive_root = self.bdist_dir
+        else:
+            archive_root = os.path.join(
+                self.bdist_dir,
+                self._ensure_relative(install.install_base))
+
+        self.set_undefined_options(
+            'install_egg_info', ('target', 'egginfo_dir'))
+        self.distinfo_dir = os.path.join(self.bdist_dir,
+                                         '%s.dist-info' % self.wheel_dist_name)
+        self.egg2dist(self.egginfo_dir,
+                      self.distinfo_dir)
+
+        self.write_wheelfile(self.distinfo_dir)
+
+        self.write_record(self.bdist_dir, self.distinfo_dir)
+
+        # Make the archive
+        if not os.path.exists(self.dist_dir):
+            os.makedirs(self.dist_dir)
+        wheel_name = archive_wheelfile(pseudoinstall_root, archive_root)
+
+        # Sign the archive
+        if 'WHEEL_TOOL' in os.environ:
+            subprocess.call([os.environ['WHEEL_TOOL'], 'sign', wheel_name])
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, 'dist_files', []).append(
+            ('bdist_wheel', get_python_version(), wheel_name))
+
+        if not self.keep_temp:
+            if self.dry_run:
+                logger.info('removing %s', self.bdist_dir)
+            else:
+                rmtree(self.bdist_dir)
+
+    def write_wheelfile(self, wheelfile_base, generator='bdist_wheel (' + wheel_version + ')'):
+        from email.message import Message
+        msg = Message()
+        msg['Wheel-Version'] = '1.0'  # of the spec
+        msg['Generator'] = generator
+        msg['Root-Is-Purelib'] = str(self.root_is_pure).lower()
+        if self.build_number is not None:
+            msg['Build'] = self.build_number
+
+        # Doesn't work for bdist_wininst
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        for impl in impl_tag.split('.'):
+            for abi in abi_tag.split('.'):
+                for plat in plat_tag.split('.'):
+                    msg['Tag'] = '-'.join((impl, abi, plat))
+
+        wheelfile_path = os.path.join(wheelfile_base, 'WHEEL')
+        logger.info('creating %s', wheelfile_path)
+        with open(wheelfile_path, 'w') as f:
+            Generator(f, maxheaderlen=0).flatten(msg)
+
+    def _ensure_relative(self, path):
+        # copied from dir_util, deleted
+        drive, path = os.path.splitdrive(path)
+        if path[0:1] == os.sep:
+            path = drive + path[1:]
+        return path
+
+    def _pkginfo_to_metadata(self, egg_info_path, pkginfo_path):
+        return metadata.pkginfo_to_metadata(egg_info_path, pkginfo_path)
+
+    def license_file(self):
+        """Return license filename from a license-file key in setup.cfg, or None."""
+        metadata = self.distribution.get_option_dict('metadata')
+        if 'license_file' not in metadata:
+            return None
+        return metadata['license_file'][1]
+
+    def setupcfg_requirements(self):
+        """Generate requirements from setup.cfg as
+        ('Requires-Dist', 'requirement; qualifier') tuples. From a metadata
+        section in setup.cfg:
+
+        [metadata]
+        provides-extra = extra1
+            extra2
+        requires-dist = requirement; qualifier
+            another; qualifier2
+            unqualified
+
+        Yields
+
+        ('Provides-Extra', 'extra1'),
+        ('Provides-Extra', 'extra2'),
+        ('Requires-Dist', 'requirement; qualifier'),
+        ('Requires-Dist', 'another; qualifier2'),
+        ('Requires-Dist', 'unqualified')
+        """
+        metadata = self.distribution.get_option_dict('metadata')
+
+        # our .ini parser folds - to _ in key names:
+        for key, title in (('provides_extra', 'Provides-Extra'),
+                           ('requires_dist', 'Requires-Dist')):
+            if key not in metadata:
+                continue
+            field = metadata[key]
+            for line in field[1].splitlines():
+                line = line.strip()
+                if not line:
+                    continue
+                yield (title, line)
+
+    def add_requirements(self, metadata_path):
+        """Add additional requirements from setup.cfg to file metadata_path"""
+        additional = list(self.setupcfg_requirements())
+        if not additional:
+            return
+
+        pkg_info = read_pkg_info(metadata_path)
+        if 'Provides-Extra' in pkg_info or 'Requires-Dist' in pkg_info:
+            warnings.warn('setup.cfg requirements overwrite values from setup.py')
+            del pkg_info['Provides-Extra']
+            del pkg_info['Requires-Dist']
+        for k, v in additional:
+            pkg_info[k] = v
+        write_pkg_info(metadata_path, pkg_info)
+
+    def egg2dist(self, egginfo_path, distinfo_path):
+        """Convert an .egg-info directory into a .dist-info directory"""
+        def adios(p):
+            """Appropriately delete directory, file or link."""
+            if os.path.exists(p) and not os.path.islink(p) and os.path.isdir(p):
+                shutil.rmtree(p)
+            elif os.path.exists(p):
+                os.unlink(p)
+
+        adios(distinfo_path)
+
+        if not os.path.exists(egginfo_path):
+            # There is no egg-info. This is probably because the egg-info
+            # file/directory is not named matching the distribution name used
+            # to name the archive file. Check for this case and report
+            # accordingly.
+            import glob
+            pat = os.path.join(os.path.dirname(egginfo_path), '*.egg-info')
+            possible = glob.glob(pat)
+            err = "Egg metadata expected at %s but not found" % (egginfo_path,)
+            if possible:
+                alt = os.path.basename(possible[0])
+                err += " (%s found - possible misnamed archive file?)" % (alt,)
+
+            raise ValueError(err)
+
+        if os.path.isfile(egginfo_path):
+            # .egg-info is a single file
+            pkginfo_path = egginfo_path
+            pkg_info = self._pkginfo_to_metadata(egginfo_path, egginfo_path)
+            os.mkdir(distinfo_path)
+        else:
+            # .egg-info is a directory
+            pkginfo_path = os.path.join(egginfo_path, 'PKG-INFO')
+            pkg_info = self._pkginfo_to_metadata(egginfo_path, pkginfo_path)
+
+            # ignore common egg metadata that is useless to wheel
+            shutil.copytree(egginfo_path, distinfo_path,
+                            ignore=lambda x, y: {'PKG-INFO', 'requires.txt', 'SOURCES.txt',
+                                                 'not-zip-safe'}
+                            )
+
+            # delete dependency_links if it is only whitespace
+            dependency_links_path = os.path.join(distinfo_path, 'dependency_links.txt')
+            with open(dependency_links_path, 'r') as dependency_links_file:
+                dependency_links = dependency_links_file.read().strip()
+            if not dependency_links:
+                adios(dependency_links_path)
+
+        write_pkg_info(os.path.join(distinfo_path, 'METADATA'), pkg_info)
+
+        # XXX deprecated. Still useful for current distribute/setuptools.
+        metadata_path = os.path.join(distinfo_path, 'METADATA')
+        self.add_requirements(metadata_path)
+
+        # XXX intentionally a different path than the PEP.
+        metadata_json_path = os.path.join(distinfo_path, 'metadata.json')
+        pymeta = pkginfo_to_dict(metadata_path,
+                                 distribution=self.distribution)
+
+        if 'description' in pymeta:
+            description_filename = 'DESCRIPTION.rst'
+            description_text = pymeta.pop('description')
+            description_path = os.path.join(distinfo_path,
+                                            description_filename)
+            with open(description_path, "wb") as description_file:
+                description_file.write(description_text.encode('utf-8'))
+            pymeta['extensions']['python.details']['document_names']['description'] = \
+                description_filename
+
+        # XXX heuristically copy any LICENSE/LICENSE.txt?
+        license = self.license_file()
+        if license:
+            license_filename = 'LICENSE.txt'
+            shutil.copy(license, os.path.join(self.distinfo_dir, license_filename))
+            pymeta['extensions']['python.details']['document_names']['license'] = license_filename
+
+        with open(metadata_json_path, "w") as metadata_json:
+            json.dump(pymeta, metadata_json, sort_keys=True)
+
+        adios(egginfo_path)
+
+    def write_record(self, bdist_dir, distinfo_dir):
+        from .util import urlsafe_b64encode
+
+        record_path = os.path.join(distinfo_dir, 'RECORD')
+        record_relpath = os.path.relpath(record_path, bdist_dir)
+
+        def walk():
+            for dir, dirs, files in os.walk(bdist_dir):
+                dirs.sort()
+                for f in sorted(files):
+                    yield os.path.join(dir, f)
+
+        def skip(path):
+            """Wheel hashes every possible file."""
+            return (path == record_relpath)
+
+        with open_for_csv(record_path, 'w+') as record_file:
+            writer = csv.writer(record_file)
+            for path in walk():
+                relpath = os.path.relpath(path, bdist_dir)
+                if skip(relpath):
+                    hash = ''
+                    size = ''
+                else:
+                    with open(path, 'rb') as f:
+                        data = f.read()
+                    digest = hashlib.sha256(data).digest()
+                    hash = 'sha256=' + native(urlsafe_b64encode(digest))
+                    size = len(data)
+                record_path = os.path.relpath(
+                    path, bdist_dir).replace(os.path.sep, '/')
+                writer.writerow((record_path, hash, size))
diff --git a/venv/lib/python3.5/site-packages/wheel/decorator.py b/venv/lib/python3.5/site-packages/wheel/decorator.py
new file mode 100644
index 0000000..e4b56d1
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/decorator.py
@@ -0,0 +1,19 @@
+# from Pyramid
+
+
+class reify(object):
+    """Put the result of a method which uses this (non-data)
+    descriptor decorator in the instance dict after the first call,
+    effectively replacing the decorator with an instance variable.
+    """
+
+    def __init__(self, wrapped):
+        self.wrapped = wrapped
+        self.__doc__ = wrapped.__doc__
+
+    def __get__(self, inst, objtype=None):
+        if inst is None:
+            return self
+        val = self.wrapped(inst)
+        setattr(inst, self.wrapped.__name__, val)
+        return val
diff --git a/venv/lib/python3.5/site-packages/wheel/egg2wheel.py b/venv/lib/python3.5/site-packages/wheel/egg2wheel.py
new file mode 100644
index 0000000..3799909
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/egg2wheel.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+import distutils.dist
+import os.path
+import re
+import shutil
+import sys
+import tempfile
+import zipfile
+from argparse import ArgumentParser
+from distutils.archive_util import make_archive
+from glob import iglob
+
+import wheel.bdist_wheel
+from wheel.wininst2wheel import _bdist_wheel_tag
+
+egg_info_re = re.compile(r'''(?P<name>.+?)-(?P<ver>.+?)
+    (-(?P<pyver>.+?))?(-(?P<arch>.+?))?.egg''', re.VERBOSE)
+
+
+def egg2wheel(egg_path, dest_dir):
+    egg_info = egg_info_re.match(os.path.basename(egg_path)).groupdict()
+    dir = tempfile.mkdtemp(suffix="_e2w")
+    if os.path.isfile(egg_path):
+        # assume we have a bdist_egg otherwise
+        egg = zipfile.ZipFile(egg_path)
+        egg.extractall(dir)
+    else:
+        # support buildout-style installed eggs directories
+        for pth in os.listdir(egg_path):
+            src = os.path.join(egg_path, pth)
+            if os.path.isfile(src):
+                shutil.copy2(src, dir)
+            else:
+                shutil.copytree(src, os.path.join(dir, pth))
+
+    dist_info = "%s-%s" % (egg_info['name'], egg_info['ver'])
+    abi = 'none'
+    pyver = egg_info['pyver'].replace('.', '')
+    arch = (egg_info['arch'] or 'any').replace('.', '_').replace('-', '_')
+    if arch != 'any':
+        # assume all binary eggs are for CPython
+        pyver = 'cp' + pyver[2:]
+    wheel_name = '-'.join((
+                          dist_info,
+                          pyver,
+                          abi,
+                          arch
+                          ))
+    root_is_purelib = egg_info['arch'] is None
+    if root_is_purelib:
+        bw = wheel.bdist_wheel.bdist_wheel(distutils.dist.Distribution())
+    else:
+        bw = _bdist_wheel_tag(distutils.dist.Distribution())
+
+    bw.root_is_pure = root_is_purelib
+    bw.python_tag = pyver
+    bw.plat_name_supplied = True
+    bw.plat_name = egg_info['arch'] or 'any'
+    if not root_is_purelib:
+        bw.full_tag_supplied = True
+        bw.full_tag = (pyver, abi, arch)
+
+    dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info)
+    bw.egg2dist(os.path.join(dir, 'EGG-INFO'),
+                dist_info_dir)
+    bw.write_wheelfile(dist_info_dir, generator='egg2wheel')
+    bw.write_record(dir, dist_info_dir)
+    filename = make_archive(os.path.join(dest_dir, wheel_name), 'zip', root_dir=dir)
+    os.rename(filename, filename[:-3] + 'whl')
+    shutil.rmtree(dir)
+
+
+def main():
+    parser = ArgumentParser()
+    parser.add_argument('eggs', nargs='*', help="Eggs to convert")
+    parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                        help="Directory to store wheels (default %(default)s)")
+    parser.add_argument('--verbose', '-v', action='store_true')
+    args = parser.parse_args()
+    for pat in args.eggs:
+        for egg in iglob(pat):
+            if args.verbose:
+                sys.stdout.write("{0}... ".format(egg))
+            egg2wheel(egg, args.dest_dir)
+            if args.verbose:
+                sys.stdout.write("OK\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/venv/lib/python3.5/site-packages/wheel/install.py b/venv/lib/python3.5/site-packages/wheel/install.py
new file mode 100644
index 0000000..5a88a75
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/install.py
@@ -0,0 +1,494 @@
+"""
+Operations on existing wheel files, including basic installation.
+"""
+# XXX see patched pip to install
+
+import csv
+import hashlib
+import os.path
+import re
+import shutil
+import sys
+import warnings
+import zipfile
+
+from . import signatures
+from .decorator import reify
+from .paths import get_install_paths
+from .pep425tags import get_supported
+from .pkginfo import read_pkg_info_bytes
+from .util import (
+    urlsafe_b64encode, from_json, urlsafe_b64decode, native, binary, HashingFile,
+    open_for_csv)
+
+try:
+    _big_number = sys.maxsize
+except NameError:
+    _big_number = sys.maxint
+
+# The next major version after this version of the 'wheel' tool:
+VERSION_TOO_HIGH = (1, 0)
+
+# Non-greedy matching of an optional build number may be too clever (more
+# invalid wheel filenames will match). Separate regex for .dist-info?
+WHEEL_INFO_RE = re.compile(
+    r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
+    ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
+    \.whl|\.dist-info)$""",
+    re.VERBOSE).match
+
+
+def parse_version(version):
+    """Use parse_version from pkg_resources or distutils as available."""
+    global parse_version
+    try:
+        from pkg_resources import parse_version
+    except ImportError:
+        from distutils.version import LooseVersion as parse_version
+    return parse_version(version)
+
+
+class BadWheelFile(ValueError):
+    pass
+
+
+class WheelFile(object):
+    """Parse wheel-specific attributes from a wheel (.whl) file and offer
+    basic installation and verification support.
+
+    WheelFile can be used to simply parse a wheel filename by avoiding the
+    methods that require the actual file contents."""
+
+    WHEEL_INFO = "WHEEL"
+    RECORD = "RECORD"
+
+    def __init__(self,
+                 filename,
+                 fp=None,
+                 append=False,
+                 context=get_supported):
+        """
+        :param fp: A seekable file-like object or None to open(filename).
+        :param append: Open archive in append mode.
+        :param context: Function returning list of supported tags. Wheels
+        must have the same context to be sortable.
+        """
+        self.filename = filename
+        self.fp = fp
+        self.append = append
+        self.context = context
+        basename = os.path.basename(filename)
+        self.parsed_filename = WHEEL_INFO_RE(basename)
+        if not basename.endswith('.whl') or self.parsed_filename is None:
+            raise BadWheelFile("Bad filename '%s'" % filename)
+
+    def __repr__(self):
+        return self.filename
+
+    @property
+    def distinfo_name(self):
+        return "%s.dist-info" % self.parsed_filename.group('namever')
+
+    @property
+    def datadir_name(self):
+        return "%s.data" % self.parsed_filename.group('namever')
+
+    @property
+    def record_name(self):
+        return "%s/%s" % (self.distinfo_name, self.RECORD)
+
+    @property
+    def wheelinfo_name(self):
+        return "%s/%s" % (self.distinfo_name, self.WHEEL_INFO)
+
+    @property
+    def tags(self):
+        """A wheel file is compatible with the Cartesian product of the
+        period-delimited tags in its filename.
+        To choose a wheel file among several candidates having the same
+        distribution version 'ver', an installer ranks each triple of
+        (pyver, abi, plat) that its Python installation can run, sorting
+        the wheels by the best-ranked tag it supports and then by their
+        arity which is just len(list(compatibility_tags)).
+        """
+        tags = self.parsed_filename.groupdict()
+        for pyver in tags['pyver'].split('.'):
+            for abi in tags['abi'].split('.'):
+                for plat in tags['plat'].split('.'):
+                    yield (pyver, abi, plat)
+
+    compatibility_tags = tags
+
+    @property
+    def arity(self):
+        """The number of compatibility tags the wheel declares."""
+        return len(list(self.compatibility_tags))
+
+    @property
+    def rank(self):
+        """
+        Lowest index of any of this wheel's tags in self.context(), and the
+        arity e.g. (0, 1)
+        """
+        return self.compatibility_rank(self.context())
+
+    @property
+    def compatible(self):
+        return self.rank[0] != _big_number  # bad API!
+
+    # deprecated:
+    def compatibility_rank(self, supported):
+        """Rank the wheel against the supported tags. Smaller ranks are more
+        compatible!
+
+        :param supported: A list of compatibility tags that the current
+            Python implemenation can run.
+        """
+        preferences = []
+        for tag in self.compatibility_tags:
+            try:
+                preferences.append(supported.index(tag))
+            # Tag not present
+            except ValueError:
+                pass
+        if len(preferences):
+            return (min(preferences), self.arity)
+        return (_big_number, 0)
+
+    # deprecated
+    def supports_current_python(self, x):
+        assert self.context == x, 'context mismatch'
+        return self.compatible
+
+    # Comparability.
+    # Wheels are equal if they refer to the same file.
+    # If two wheels are not equal, compare based on (in this order):
+    #   1. Name
+    #   2. Version
+    #   3. Compatibility rank
+    #   4. Filename (as a tiebreaker)
+    @property
+    def _sort_key(self):
+        return (self.parsed_filename.group('name'),
+                parse_version(self.parsed_filename.group('ver')),
+                tuple(-x for x in self.rank),
+                self.filename)
+
+    def __eq__(self, other):
+        return self.filename == other.filename
+
+    def __ne__(self, other):
+        return self.filename != other.filename
+
+    def __lt__(self, other):
+        if self.context != other.context:
+            raise TypeError("{0}.context != {1}.context".format(self, other))
+
+        return self._sort_key < other._sort_key
+
+        # XXX prune
+
+        sn = self.parsed_filename.group('name')
+        on = other.parsed_filename.group('name')
+        if sn != on:
+            return sn < on
+        sv = parse_version(self.parsed_filename.group('ver'))
+        ov = parse_version(other.parsed_filename.group('ver'))
+        if sv != ov:
+            return sv < ov
+        # Compatibility
+        if self.context != other.context:
+            raise TypeError("{0}.context != {1}.context".format(self, other))
+        sc = self.rank
+        oc = other.rank
+        if sc is not None and oc is not None and sc != oc:
+            # Smaller compatibility ranks are "better" than larger ones,
+            # so we have to reverse the sense of the comparison here!
+            return sc > oc
+        elif sc is None and oc is not None:
+            return False
+        return self.filename < other.filename
+
+    def __gt__(self, other):
+        return other < self
+
+    def __le__(self, other):
+        return self == other or self < other
+
+    def __ge__(self, other):
+        return self == other or other < self
+
+    #
+    # Methods using the file's contents:
+    #
+
+    @reify
+    def zipfile(self):
+        mode = "r"
+        if self.append:
+            mode = "a"
+        vzf = VerifyingZipFile(self.fp if self.fp else self.filename, mode)
+        if not self.append:
+            self.verify(vzf)
+        return vzf
+
+    @reify
+    def parsed_wheel_info(self):
+        """Parse wheel metadata (the .data/WHEEL file)"""
+        return read_pkg_info_bytes(self.zipfile.read(self.wheelinfo_name))
+
+    def check_version(self):
+        version = self.parsed_wheel_info['Wheel-Version']
+        if tuple(map(int, version.split('.'))) >= VERSION_TOO_HIGH:
+            raise ValueError("Wheel version is too high")
+
+    @reify
+    def install_paths(self):
+        """
+        Consult distutils to get the install paths for our dist.  A dict with
+        ('purelib', 'platlib', 'headers', 'scripts', 'data').
+
+        We use the name from our filename as the dist name, which means headers
+        could be installed in the wrong place if the filesystem-escaped name
+        is different than the Name.  Who cares?
+        """
+        name = self.parsed_filename.group('name')
+        return get_install_paths(name)
+
+    def install(self, force=False, overrides={}):
+        """
+        Install the wheel into site-packages.
+        """
+
+        # Utility to get the target directory for a particular key
+        def get_path(key):
+            return overrides.get(key) or self.install_paths[key]
+
+        # The base target location is either purelib or platlib
+        if self.parsed_wheel_info['Root-Is-Purelib'] == 'true':
+            root = get_path('purelib')
+        else:
+            root = get_path('platlib')
+
+        # Parse all the names in the archive
+        name_trans = {}
+        for info in self.zipfile.infolist():
+            name = info.filename
+            # Zip files can contain entries representing directories.
+            # These end in a '/'.
+            # We ignore these, as we create directories on demand.
+            if name.endswith('/'):
+                continue
+
+            # Pathnames in a zipfile namelist are always /-separated.
+            # In theory, paths could start with ./ or have other oddities
+            # but this won't happen in practical cases of well-formed wheels.
+            # We'll cover the simple case of an initial './' as it's both easy
+            # to do and more common than most other oddities.
+            if name.startswith('./'):
+                name = name[2:]
+
+            # Split off the base directory to identify files that are to be
+            # installed in non-root locations
+            basedir, sep, filename = name.partition('/')
+            if sep and basedir == self.datadir_name:
+                # Data file. Target destination is elsewhere
+                key, sep, filename = filename.partition('/')
+                if not sep:
+                    raise ValueError("Invalid filename in wheel: {0}".format(name))
+                target = get_path(key)
+            else:
+                # Normal file. Target destination is root
+                key = ''
+                target = root
+                filename = name
+
+            # Map the actual filename from the zipfile to its intended target
+            # directory and the pathname relative to that directory.
+            dest = os.path.normpath(os.path.join(target, filename))
+            name_trans[info] = (key, target, filename, dest)
+
+        # We're now ready to start processing the actual install. The process
+        # is as follows:
+        #   1. Prechecks - is the wheel valid, is its declared architecture
+        #      OK, etc. [[Responsibility of the caller]]
+        #   2. Overwrite check - do any of the files to be installed already
+        #      exist?
+        #   3. Actual install - put the files in their target locations.
+        #   4. Update RECORD - write a suitably modified RECORD file to
+        #      reflect the actual installed paths.
+
+        if not force:
+            for info, v in name_trans.items():
+                k = info.filename
+                key, target, filename, dest = v
+                if os.path.exists(dest):
+                    raise ValueError(
+                        "Wheel file {0} would overwrite {1}. Use force if this is intended".format(
+                            k, dest))
+
+        # Get the name of our executable, for use when replacing script
+        # wrapper hashbang lines.
+        # We encode it using getfilesystemencoding, as that is "the name of
+        # the encoding used to convert Unicode filenames into system file
+        # names".
+        exename = sys.executable.encode(sys.getfilesystemencoding())
+        record_data = []
+        record_name = self.distinfo_name + '/RECORD'
+        for info, (key, target, filename, dest) in name_trans.items():
+            name = info.filename
+            source = self.zipfile.open(info)
+            # Skip the RECORD file
+            if name == record_name:
+                continue
+            ddir = os.path.dirname(dest)
+            if not os.path.isdir(ddir):
+                os.makedirs(ddir)
+
+            temp_filename = dest + '.part'
+            try:
+                with HashingFile(temp_filename, 'wb') as destination:
+                    if key == 'scripts':
+                        hashbang = source.readline()
+                        if hashbang.startswith(b'#!python'):
+                            hashbang = b'#!' + exename + binary(os.linesep)
+                        destination.write(hashbang)
+
+                    shutil.copyfileobj(source, destination)
+            except:
+                if os.path.exists(temp_filename):
+                    os.unlink(temp_filename)
+
+                raise
+
+            os.rename(temp_filename, dest)
+            reldest = os.path.relpath(dest, root)
+            reldest.replace(os.sep, '/')
+            record_data.append((reldest, destination.digest(), destination.length))
+            destination.close()
+            source.close()
+            # preserve attributes (especially +x bit for scripts)
+            attrs = info.external_attr >> 16
+            if attrs:  # tends to be 0 if Windows.
+                os.chmod(dest, info.external_attr >> 16)
+
+        record_name = os.path.join(root, self.record_name)
+        with open_for_csv(record_name, 'w+') as record_file:
+            writer = csv.writer(record_file)
+            for reldest, digest, length in sorted(record_data):
+                writer.writerow((reldest, digest, length))
+            writer.writerow((self.record_name, '', ''))
+
+    def verify(self, zipfile=None):
+        """Configure the VerifyingZipFile `zipfile` by verifying its signature
+        and setting expected hashes for every hash in RECORD.
+        Caller must complete the verification process by completely reading
+        every file in the archive (e.g. with extractall)."""
+        sig = None
+        if zipfile is None:
+            zipfile = self.zipfile
+        zipfile.strict = True
+
+        record_name = '/'.join((self.distinfo_name, 'RECORD'))
+        sig_name = '/'.join((self.distinfo_name, 'RECORD.jws'))
+        # tolerate s/mime signatures:
+        smime_sig_name = '/'.join((self.distinfo_name, 'RECORD.p7s'))
+        zipfile.set_expected_hash(record_name, None)
+        zipfile.set_expected_hash(sig_name, None)
+        zipfile.set_expected_hash(smime_sig_name, None)
+        record = zipfile.read(record_name)
+
+        record_digest = urlsafe_b64encode(hashlib.sha256(record).digest())
+        try:
+            sig = from_json(native(zipfile.read(sig_name)))
+        except KeyError:  # no signature
+            pass
+        if sig:
+            headers, payload = signatures.verify(sig)
+            if payload['hash'] != "sha256=" + native(record_digest):
+                msg = "RECORD.sig claimed RECORD hash {0} != computed hash {1}."
+                raise BadWheelFile(msg.format(payload['hash'],
+                                              native(record_digest)))
+
+        reader = csv.reader((native(r) for r in record.splitlines()))
+
+        for row in reader:
+            filename = row[0]
+            hash = row[1]
+            if not hash:
+                if filename not in (record_name, sig_name):
+                    sys.stderr.write("%s has no hash!\n" % filename)
+                continue
+            algo, data = row[1].split('=', 1)
+            assert algo == "sha256", "Unsupported hash algorithm"
+            zipfile.set_expected_hash(filename, urlsafe_b64decode(binary(data)))
+
+
+class VerifyingZipFile(zipfile.ZipFile):
+    """ZipFile that can assert that each of its extracted contents matches
+    an expected sha256 hash. Note that each file must be completly read in
+    order for its hash to be checked."""
+
+    def __init__(self, file, mode="r",
+                 compression=zipfile.ZIP_STORED,
+                 allowZip64=False):
+        zipfile.ZipFile.__init__(self, file, mode, compression, allowZip64)
+
+        self.strict = False
+        self._expected_hashes = {}
+        self._hash_algorithm = hashlib.sha256
+
+    def set_expected_hash(self, name, hash):
+        """
+        :param name: name of zip entry
+        :param hash: bytes of hash (or None for "don't care")
+        """
+        self._expected_hashes[name] = hash
+
+    def open(self, name_or_info, mode="r", pwd=None):
+        """Return file-like object for 'name'."""
+        # A non-monkey-patched version would contain most of zipfile.py
+        ef = zipfile.ZipFile.open(self, name_or_info, mode, pwd)
+        if isinstance(name_or_info, zipfile.ZipInfo):
+            name = name_or_info.filename
+        else:
+            name = name_or_info
+
+        if name in self._expected_hashes and self._expected_hashes[name] is not None:
+            expected_hash = self._expected_hashes[name]
+            try:
+                _update_crc_orig = ef._update_crc
+            except AttributeError:
+                warnings.warn('Need ZipExtFile._update_crc to implement '
+                              'file hash verification (in Python >= 2.7)')
+                return ef
+            running_hash = self._hash_algorithm()
+            if hasattr(ef, '_eof'):  # py33
+                def _update_crc(data):
+                    _update_crc_orig(data)
+                    running_hash.update(data)
+                    if ef._eof and running_hash.digest() != expected_hash:
+                        raise BadWheelFile("Bad hash for file %r" % ef.name)
+            else:
+                def _update_crc(data, eof=None):
+                    _update_crc_orig(data, eof=eof)
+                    running_hash.update(data)
+                    if eof and running_hash.digest() != expected_hash:
+                        raise BadWheelFile("Bad hash for file %r" % ef.name)
+            ef._update_crc = _update_crc
+        elif self.strict and name not in self._expected_hashes:
+            raise BadWheelFile("No expected hash for file %r" % ef.name)
+        return ef
+
+    def pop(self):
+        """Truncate the last file off this zipfile.
+        Assumes infolist() is in the same order as the files (true for
+        ordinary zip files created by Python)"""
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to pop from ZIP archive that was already closed")
+        last = self.infolist().pop()
+        del self.NameToInfo[last.filename]
+        self.fp.seek(last.header_offset, os.SEEK_SET)
+        self.fp.truncate()
+        self._didModify = True
diff --git a/venv/lib/python3.5/site-packages/wheel/metadata.py b/venv/lib/python3.5/site-packages/wheel/metadata.py
new file mode 100644
index 0000000..29638e7
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/metadata.py
@@ -0,0 +1,338 @@
+"""
+Tools for converting old- to new-style metadata.
+"""
+
+import email.parser
+import os.path
+import re
+import textwrap
+from collections import namedtuple, OrderedDict
+
+import pkg_resources
+
+from . import __version__ as wheel_version
+from .pkginfo import read_pkg_info
+from .util import OrderedDefaultDict
+
+METADATA_VERSION = "2.0"
+
+PLURAL_FIELDS = {"classifier": "classifiers",
+                 "provides_dist": "provides",
+                 "provides_extra": "extras"}
+
+SKIP_FIELDS = set()
+
+CONTACT_FIELDS = (({"email": "author_email", "name": "author"},
+                   "author"),
+                  ({"email": "maintainer_email", "name": "maintainer"},
+                   "maintainer"))
+
+# commonly filled out as "UNKNOWN" by distutils:
+UNKNOWN_FIELDS = {"author", "author_email", "platform", "home_page", "license"}
+
+# Wheel itself is probably the only program that uses non-extras markers
+# in METADATA/PKG-INFO. Support its syntax with the extra at the end only.
+EXTRA_RE = re.compile("""^(?P<package>.*?)(;\s*(?P<condition>.*?)(extra == '(?P<extra>.*?)')?)$""")
+KEYWORDS_RE = re.compile("[\0-,]+")
+
+MayRequiresKey = namedtuple('MayRequiresKey', ('condition', 'extra'))
+
+
+def unique(iterable):
+    """
+    Yield unique values in iterable, preserving order.
+    """
+    seen = set()
+    for value in iterable:
+        if value not in seen:
+            seen.add(value)
+            yield value
+
+
+def handle_requires(metadata, pkg_info, key):
+    """
+    Place the runtime requirements from pkg_info into metadata.
+    """
+    may_requires = OrderedDefaultDict(list)
+    for value in sorted(pkg_info.get_all(key)):
+        extra_match = EXTRA_RE.search(value)
+        if extra_match:
+            groupdict = extra_match.groupdict()
+            condition = groupdict['condition']
+            extra = groupdict['extra']
+            package = groupdict['package']
+            if condition.endswith(' and '):
+                condition = condition[:-5]
+        else:
+            condition, extra = None, None
+            package = value
+        key = MayRequiresKey(condition, extra)
+        may_requires[key].append(package)
+
+    if may_requires:
+        metadata['run_requires'] = []
+
+        def sort_key(item):
+            # Both condition and extra could be None, which can't be compared
+            # against strings in Python 3.
+            key, value = item
+            if key.condition is None:
+                return ''
+            return key.condition
+
+        for key, value in sorted(may_requires.items(), key=sort_key):
+            may_requirement = OrderedDict((('requires', value),))
+            if key.extra:
+                may_requirement['extra'] = key.extra
+            if key.condition:
+                may_requirement['environment'] = key.condition
+            metadata['run_requires'].append(may_requirement)
+
+        if 'extras' not in metadata:
+            metadata['extras'] = []
+        metadata['extras'].extend([key.extra for key in may_requires.keys() if key.extra])
+
+
+def pkginfo_to_dict(path, distribution=None):
+    """
+    Convert PKG-INFO to a prototype Metadata 2.0 (PEP 426) dict.
+
+    The description is included under the key ['description'] rather than
+    being written to a separate file.
+
+    path: path to PKG-INFO file
+    distribution: optional distutils Distribution()
+    """
+
+    metadata = OrderedDefaultDict(
+        lambda: OrderedDefaultDict(lambda: OrderedDefaultDict(OrderedDict)))
+    metadata["generator"] = "bdist_wheel (" + wheel_version + ")"
+    try:
+        unicode
+        pkg_info = read_pkg_info(path)
+    except NameError:
+        with open(path, 'rb') as pkg_info_file:
+            pkg_info = email.parser.Parser().parsestr(pkg_info_file.read().decode('utf-8'))
+    description = None
+
+    if pkg_info['Summary']:
+        metadata['summary'] = pkginfo_unicode(pkg_info, 'Summary')
+        del pkg_info['Summary']
+
+    if pkg_info['Description']:
+        description = dedent_description(pkg_info)
+        del pkg_info['Description']
+    else:
+        payload = pkg_info.get_payload()
+        if isinstance(payload, bytes):
+            # Avoid a Python 2 Unicode error.
+            # We still suffer ? glyphs on Python 3.
+            payload = payload.decode('utf-8')
+        if payload:
+            description = payload
+
+    if description:
+        pkg_info['description'] = description
+
+    for key in sorted(unique(k.lower() for k in pkg_info.keys())):
+        low_key = key.replace('-', '_')
+
+        if low_key in SKIP_FIELDS:
+            continue
+
+        if low_key in UNKNOWN_FIELDS and pkg_info.get(key) == 'UNKNOWN':
+            continue
+
+        if low_key in sorted(PLURAL_FIELDS):
+            metadata[PLURAL_FIELDS[low_key]] = pkg_info.get_all(key)
+
+        elif low_key == "requires_dist":
+            handle_requires(metadata, pkg_info, key)
+
+        elif low_key == 'provides_extra':
+            if 'extras' not in metadata:
+                metadata['extras'] = []
+            metadata['extras'].extend(pkg_info.get_all(key))
+
+        elif low_key == 'home_page':
+            metadata['extensions']['python.details']['project_urls'] = {'Home': pkg_info[key]}
+
+        elif low_key == 'keywords':
+            metadata['keywords'] = KEYWORDS_RE.split(pkg_info[key])
+
+        else:
+            metadata[low_key] = pkg_info[key]
+
+    metadata['metadata_version'] = METADATA_VERSION
+
+    if 'extras' in metadata:
+        metadata['extras'] = sorted(set(metadata['extras']))
+
+    # include more information if distribution is available
+    if distribution:
+        for requires, attr in (('test_requires', 'tests_require'),):
+            try:
+                requirements = getattr(distribution, attr)
+                if isinstance(requirements, list):
+                    new_requirements = sorted(convert_requirements(requirements))
+                    metadata[requires] = [{'requires': new_requirements}]
+            except AttributeError:
+                pass
+
+    # handle contacts
+    contacts = []
+    for contact_type, role in CONTACT_FIELDS:
+        contact = OrderedDict()
+        for key in sorted(contact_type):
+            if contact_type[key] in metadata:
+                contact[key] = metadata.pop(contact_type[key])
+        if contact:
+            contact['role'] = role
+            contacts.append(contact)
+    if contacts:
+        metadata['extensions']['python.details']['contacts'] = contacts
+
+    # convert entry points to exports
+    try:
+        with open(os.path.join(os.path.dirname(path), "entry_points.txt"), "r") as ep_file:
+            ep_map = pkg_resources.EntryPoint.parse_map(ep_file.read())
+        exports = OrderedDict()
+        for group, items in sorted(ep_map.items()):
+            exports[group] = OrderedDict()
+            for item in sorted(map(str, items.values())):
+                name, export = item.split(' = ', 1)
+                exports[group][name] = export
+        if exports:
+            metadata['extensions']['python.exports'] = exports
+    except IOError:
+        pass
+
+    # copy console_scripts entry points to commands
+    if 'python.exports' in metadata['extensions']:
+        for (ep_script, wrap_script) in (('console_scripts', 'wrap_console'),
+                                         ('gui_scripts', 'wrap_gui')):
+            if ep_script in metadata['extensions']['python.exports']:
+                metadata['extensions']['python.commands'][wrap_script] = \
+                    metadata['extensions']['python.exports'][ep_script]
+
+    return metadata
+
+
+def requires_to_requires_dist(requirement):
+    """Compose the version predicates for requirement in PEP 345 fashion."""
+    requires_dist = []
+    for op, ver in requirement.specs:
+        requires_dist.append(op + ver)
+    if not requires_dist:
+        return ''
+    return " (%s)" % ','.join(sorted(requires_dist))
+
+
+def convert_requirements(requirements):
+    """Yield Requires-Dist: strings for parsed requirements strings."""
+    for req in requirements:
+        parsed_requirement = pkg_resources.Requirement.parse(req)
+        spec = requires_to_requires_dist(parsed_requirement)
+        extras = ",".join(parsed_requirement.extras)
+        if extras:
+            extras = "[%s]" % extras
+        yield (parsed_requirement.project_name + extras + spec)
+
+
+def generate_requirements(extras_require):
+    """
+    Convert requirements from a setup()-style dictionary to ('Requires-Dist', 'requirement')
+    and ('Provides-Extra', 'extra') tuples.
+
+    extras_require is a dictionary of {extra: [requirements]} as passed to setup(),
+    using the empty extra {'': [requirements]} to hold install_requires.
+    """
+    for extra, depends in extras_require.items():
+        condition = ''
+        if extra and ':' in extra:  # setuptools extra:condition syntax
+            extra, condition = extra.split(':', 1)
+            extra = pkg_resources.safe_extra(extra)
+        if extra:
+            yield ('Provides-Extra', extra)
+            if condition:
+                condition += " and "
+            condition += "extra == '%s'" % extra
+        if condition:
+            condition = '; ' + condition
+        for new_req in convert_requirements(depends):
+            yield ('Requires-Dist', new_req + condition)
+
+
+def pkginfo_to_metadata(egg_info_path, pkginfo_path):
+    """
+    Convert .egg-info directory with PKG-INFO to the Metadata 1.3 aka
+    old-draft Metadata 2.0 format.
+    """
+    pkg_info = read_pkg_info(pkginfo_path)
+    pkg_info.replace_header('Metadata-Version', '2.0')
+    requires_path = os.path.join(egg_info_path, 'requires.txt')
+    if os.path.exists(requires_path):
+        with open(requires_path) as requires_file:
+            requires = requires_file.read()
+        for extra, reqs in sorted(pkg_resources.split_sections(requires),
+                                  key=lambda x: x[0] or ''):
+            for item in generate_requirements({extra: reqs}):
+                pkg_info[item[0]] = item[1]
+
+    description = pkg_info['Description']
+    if description:
+        pkg_info.set_payload(dedent_description(pkg_info))
+        del pkg_info['Description']
+
+    return pkg_info
+
+
+def pkginfo_unicode(pkg_info, field):
+    """Hack to coax Unicode out of an email Message() - Python 3.3+"""
+    text = pkg_info[field]
+    field = field.lower()
+    if not isinstance(text, str):
+        if not hasattr(pkg_info, 'raw_items'):  # Python 3.2
+            return str(text)
+        for item in pkg_info.raw_items():
+            if item[0].lower() == field:
+                text = item[1].encode('ascii', 'surrogateescape') \
+                    .decode('utf-8')
+                break
+
+    return text
+
+
+def dedent_description(pkg_info):
+    """
+    Dedent and convert pkg_info['Description'] to Unicode.
+    """
+    description = pkg_info['Description']
+
+    # Python 3 Unicode handling, sorta.
+    surrogates = False
+    if not isinstance(description, str):
+        surrogates = True
+        description = pkginfo_unicode(pkg_info, 'Description')
+
+    description_lines = description.splitlines()
+    description_dedent = '\n'.join(
+        # if the first line of long_description is blank,
+        # the first line here will be indented.
+        (description_lines[0].lstrip(),
+         textwrap.dedent('\n'.join(description_lines[1:])),
+         '\n'))
+
+    if surrogates:
+        description_dedent = description_dedent \
+            .encode("utf8") \
+            .decode("ascii", "surrogateescape")
+
+    return description_dedent
+
+
+if __name__ == "__main__":
+    import sys
+    import pprint
+
+    pprint.pprint(pkginfo_to_dict(sys.argv[1]))
diff --git a/venv/lib/python3.5/site-packages/wheel/paths.py b/venv/lib/python3.5/site-packages/wheel/paths.py
new file mode 100644
index 0000000..afb3cae
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/paths.py
@@ -0,0 +1,43 @@
+"""
+Installation paths.
+
+Map the .data/ subdirectory names to install paths.
+"""
+
+import distutils.command.install as install
+import distutils.dist as dist
+import os.path
+import sys
+
+
+def get_install_command(name):
+    # late binding due to potential monkeypatching
+    d = dist.Distribution({'name': name})
+    i = install.install(d)
+    i.finalize_options()
+    return i
+
+
+def get_install_paths(name):
+    """
+    Return the (distutils) install paths for the named dist.
+
+    A dict with ('purelib', 'platlib', 'headers', 'scripts', 'data') keys.
+    """
+    paths = {}
+
+    i = get_install_command(name)
+
+    for key in install.SCHEME_KEYS:
+        paths[key] = getattr(i, 'install_' + key)
+
+    # pip uses a similar path as an alternative to the system's (read-only)
+    # include directory:
+    if hasattr(sys, 'real_prefix'):  # virtualenv
+        paths['headers'] = os.path.join(sys.prefix,
+                                        'include',
+                                        'site',
+                                        'python' + sys.version[:3],
+                                        name)
+
+    return paths
diff --git a/venv/lib/python3.5/site-packages/wheel/pep425tags.py b/venv/lib/python3.5/site-packages/wheel/pep425tags.py
new file mode 100644
index 0000000..29afdc3
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/pep425tags.py
@@ -0,0 +1,180 @@
+"""Generate and work with PEP 425 Compatibility Tags."""
+
+import distutils.util
+import platform
+import sys
+import sysconfig
+import warnings
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # pip Issue #1074
+        warnings.warn("{0}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    impl = platform.python_implementation()
+    if impl == 'PyPy':
+        return 'pp'
+    elif impl == 'Jython':
+        return 'jy'
+    elif impl == 'IronPython':
+        return 'ip'
+    elif impl == 'CPython':
+        return 'cp'
+
+    raise LookupError('Unknown Python implementation: ' + impl)
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn("Config variable '{0}' is unset, Python ABI tag may "
+                          "be incorrect".format(var), RuntimeWarning, 2)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in ('cp', 'pp') and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and sys.maxsize == 2147483647:
+        # pip pull request #3497
+        result = "linux_i686"
+    return result
+
+
+def get_supported(versions=None, supplied_platform=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = get_abbr_impl()
+
+    abis = []
+
+    abi = get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    platforms = []
+    if supplied_platform:
+        platforms.append(supplied_platform)
+    platforms.append(get_platform())
+
+    # Current version, current API (built specifically for our Python):
+    for abi in abis:
+        for arch in platforms:
+            supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+    # abi3 modules compatible with older version of Python
+    for version in versions[1:]:
+        # abi3 was introduced in Python 3.2
+        if version in ('31', '30'):
+            break
+        for abi in abi3s:   # empty set if not Python 3
+            for arch in platforms:
+                supported.append(("%s%s" % (impl, version), abi, arch))
+
+    # No abi / arch, but requires our implementation:
+    for i, version in enumerate(versions):
+        supported.append(('%s%s' % (impl, version), 'none', 'any'))
+        if i == 0:
+            # Tagged specifically as being cross-version compatible
+            # (with just the major version specified)
+            supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # Major Python version + platform; e.g. binaries not using the Python API
+    supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
diff --git a/venv/lib/python3.5/site-packages/wheel/pkginfo.py b/venv/lib/python3.5/site-packages/wheel/pkginfo.py
new file mode 100644
index 0000000..115be45
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/pkginfo.py
@@ -0,0 +1,43 @@
+"""Tools for reading and writing PKG-INFO / METADATA without caring
+about the encoding."""
+
+from email.parser import Parser
+
+try:
+    unicode
+    _PY3 = False
+except NameError:
+    _PY3 = True
+
+if not _PY3:
+    from email.generator import Generator
+
+    def read_pkg_info_bytes(bytestr):
+        return Parser().parsestr(bytestr)
+
+    def read_pkg_info(path):
+        with open(path, "r") as headers:
+            message = Parser().parse(headers)
+        return message
+
+    def write_pkg_info(path, message):
+        with open(path, 'w') as metadata:
+            Generator(metadata, mangle_from_=False, maxheaderlen=0).flatten(message)
+else:
+    from email.generator import BytesGenerator
+
+    def read_pkg_info_bytes(bytestr):
+        headers = bytestr.decode(encoding="ascii", errors="surrogateescape")
+        message = Parser().parsestr(headers)
+        return message
+
+    def read_pkg_info(path):
+        with open(path, "r",
+                  encoding="ascii",
+                  errors="surrogateescape") as headers:
+            message = Parser().parse(headers)
+        return message
+
+    def write_pkg_info(path, message):
+        with open(path, "wb") as out:
+            BytesGenerator(out, mangle_from_=False, maxheaderlen=0).flatten(message)
diff --git a/venv/lib/python3.5/site-packages/wheel/signatures/__init__.py b/venv/lib/python3.5/site-packages/wheel/signatures/__init__.py
new file mode 100644
index 0000000..e7a5331
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/signatures/__init__.py
@@ -0,0 +1,110 @@
+"""
+Create and verify jws-js format Ed25519 signatures.
+"""
+
+import json
+from ..util import urlsafe_b64decode, urlsafe_b64encode, native, binary
+
+__all__ = ['sign', 'verify']
+
+ed25519ll = None
+
+ALG = "Ed25519"
+
+
+def get_ed25519ll():
+    """Lazy import-and-test of ed25519 module"""
+    global ed25519ll
+
+    if not ed25519ll:
+        try:
+            import ed25519ll  # fast (thousands / s)
+        except (ImportError, OSError):  # pragma nocover
+            from . import ed25519py as ed25519ll  # pure Python (hundreds / s)
+        test()
+
+    return ed25519ll
+
+
+def sign(payload, keypair):
+    """Return a JWS-JS format signature given a JSON-serializable payload and
+    an Ed25519 keypair."""
+    get_ed25519ll()
+    #
+    header = {
+                "alg": ALG,
+                "jwk": {
+                    "kty": ALG,  # alg -> kty in jwk-08.
+                    "vk": native(urlsafe_b64encode(keypair.vk))
+                }
+             }
+
+    encoded_header = urlsafe_b64encode(binary(json.dumps(header, sort_keys=True)))
+    encoded_payload = urlsafe_b64encode(binary(json.dumps(payload, sort_keys=True)))
+    secured_input = b".".join((encoded_header, encoded_payload))
+    sig_msg = ed25519ll.crypto_sign(secured_input, keypair.sk)
+    signature = sig_msg[:ed25519ll.SIGNATUREBYTES]
+    encoded_signature = urlsafe_b64encode(signature)
+
+    return {"recipients":
+            [{"header": native(encoded_header),
+              "signature": native(encoded_signature)}],
+            "payload": native(encoded_payload)}
+
+
+def assertTrue(condition, message=""):
+    if not condition:
+        raise ValueError(message)
+
+
+def verify(jwsjs):
+    """Return (decoded headers, payload) if all signatures in jwsjs are
+    consistent, else raise ValueError.
+
+    Caller must decide whether the keys are actually trusted."""
+    get_ed25519ll()
+    # XXX forbid duplicate keys in JSON input using object_pairs_hook (2.7+)
+    recipients = jwsjs["recipients"]
+    encoded_payload = binary(jwsjs["payload"])
+    headers = []
+    for recipient in recipients:
+        assertTrue(len(recipient) == 2, "Unknown recipient key {0}".format(recipient))
+        h = binary(recipient["header"])
+        s = binary(recipient["signature"])
+        header = json.loads(native(urlsafe_b64decode(h)))
+        assertTrue(header["alg"] == ALG,
+                   "Unexpected algorithm {0}".format(header["alg"]))
+        if "alg" in header["jwk"] and "kty" not in header["jwk"]:
+            header["jwk"]["kty"] = header["jwk"]["alg"]  # b/w for JWK < -08
+        assertTrue(header["jwk"]["kty"] == ALG,  # true for Ed25519
+                   "Unexpected key type {0}".format(header["jwk"]["kty"]))
+        vk = urlsafe_b64decode(binary(header["jwk"]["vk"]))
+        secured_input = b".".join((h, encoded_payload))
+        sig = urlsafe_b64decode(s)
+        sig_msg = sig+secured_input
+        verified_input = native(ed25519ll.crypto_sign_open(sig_msg, vk))
+        verified_header, verified_payload = verified_input.split('.')
+        verified_header = binary(verified_header)
+        decoded_header = native(urlsafe_b64decode(verified_header))
+        headers.append(json.loads(decoded_header))
+
+    verified_payload = binary(verified_payload)
+
+    # only return header, payload that have passed through the crypto library.
+    payload = json.loads(native(urlsafe_b64decode(verified_payload)))
+
+    return headers, payload
+
+
+def test():
+    kp = ed25519ll.crypto_sign_keypair()
+    payload = {'test': 'onstartup'}
+    jwsjs = json.loads(json.dumps(sign(payload, kp)))
+    verify(jwsjs)
+    jwsjs['payload'] += 'x'
+    try:
+        verify(jwsjs)
+    except ValueError:
+        pass
+    else:  # pragma no cover
+        raise RuntimeError("No error from bad wheel.signatures payload.")
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diff --git a/venv/lib/python3.5/site-packages/wheel/signatures/__pycache__/keys.cpython-35.pyc b/venv/lib/python3.5/site-packages/wheel/signatures/__pycache__/keys.cpython-35.pyc
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diff --git a/venv/lib/python3.5/site-packages/wheel/signatures/djbec.py b/venv/lib/python3.5/site-packages/wheel/signatures/djbec.py
new file mode 100644
index 0000000..87f72d4
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/signatures/djbec.py
@@ -0,0 +1,323 @@
+# Ed25519 digital signatures
+# Based on http://ed25519.cr.yp.to/python/ed25519.py
+# See also http://ed25519.cr.yp.to/software.html
+# Adapted by Ron Garret
+# Sped up considerably using coordinate transforms found on:
+# http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+# Specifically add-2008-hwcd-4 and dbl-2008-hwcd
+
+import hashlib
+import random
+
+try:  # pragma nocover
+    unicode
+    PY3 = False
+
+    def asbytes(b):
+        """Convert array of integers to byte string"""
+        return ''.join(chr(x) for x in b)
+
+    def joinbytes(b):
+        """Convert array of bytes to byte string"""
+        return ''.join(b)
+
+    def bit(h, i):
+        """Return i'th bit of bytestring h"""
+        return (ord(h[i // 8]) >> (i % 8)) & 1
+except NameError:  # pragma nocover
+    PY3 = True
+    asbytes = bytes
+    joinbytes = bytes
+
+    def bit(h, i):
+        return (h[i // 8] >> (i % 8)) & 1
+
+b = 256
+q = 2 ** 255 - 19
+l = 2 ** 252 + 27742317777372353535851937790883648493
+
+
+def H(m):
+    return hashlib.sha512(m).digest()
+
+
+def expmod(b, e, m):
+    if e == 0:
+        return 1
+
+    t = expmod(b, e // 2, m) ** 2 % m
+    if e & 1:
+        t = (t * b) % m
+
+    return t
+
+
+# Can probably get some extra speedup here by replacing this with
+# an extended-euclidean, but performance seems OK without that
+def inv(x):
+    return expmod(x, q - 2, q)
+
+
+d = -121665 * inv(121666)
+I = expmod(2, (q - 1) // 4, q)
+
+
+def xrecover(y):
+    xx = (y * y - 1) * inv(d * y * y + 1)
+    x = expmod(xx, (q + 3) // 8, q)
+    if (x * x - xx) % q != 0:
+        x = (x * I) % q
+
+    if x % 2 != 0:
+        x = q - x
+
+    return x
+
+
+By = 4 * inv(5)
+Bx = xrecover(By)
+B = [Bx % q, By % q]
+
+
+# def edwards(P,Q):
+#    x1 = P[0]
+#    y1 = P[1]
+#    x2 = Q[0]
+#    y2 = Q[1]
+#    x3 = (x1*y2+x2*y1) * inv(1+d*x1*x2*y1*y2)
+#    y3 = (y1*y2+x1*x2) * inv(1-d*x1*x2*y1*y2)
+#    return (x3 % q,y3 % q)
+
+# def scalarmult(P,e):
+#    if e == 0: return [0,1]
+#    Q = scalarmult(P,e/2)
+#    Q = edwards(Q,Q)
+#    if e & 1: Q = edwards(Q,P)
+#    return Q
+
+# Faster (!) version based on:
+# http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+
+def xpt_add(pt1, pt2):
+    (X1, Y1, Z1, T1) = pt1
+    (X2, Y2, Z2, T2) = pt2
+    A = ((Y1 - X1) * (Y2 + X2)) % q
+    B = ((Y1 + X1) * (Y2 - X2)) % q
+    C = (Z1 * 2 * T2) % q
+    D = (T1 * 2 * Z2) % q
+    E = (D + C) % q
+    F = (B - A) % q
+    G = (B + A) % q
+    H = (D - C) % q
+    X3 = (E * F) % q
+    Y3 = (G * H) % q
+    Z3 = (F * G) % q
+    T3 = (E * H) % q
+    return (X3, Y3, Z3, T3)
+
+
+def xpt_double(pt):
+    (X1, Y1, Z1, _) = pt
+    A = (X1 * X1)
+    B = (Y1 * Y1)
+    C = (2 * Z1 * Z1)
+    D = (-A) % q
+    J = (X1 + Y1) % q
+    E = (J * J - A - B) % q
+    G = (D + B) % q
+    F = (G - C) % q
+    H = (D - B) % q
+    X3 = (E * F) % q
+    Y3 = (G * H) % q
+    Z3 = (F * G) % q
+    T3 = (E * H) % q
+    return X3, Y3, Z3, T3
+
+
+def pt_xform(pt):
+    (x, y) = pt
+    return x, y, 1, (x * y) % q
+
+
+def pt_unxform(pt):
+    (x, y, z, _) = pt
+    return (x * inv(z)) % q, (y * inv(z)) % q
+
+
+def xpt_mult(pt, n):
+    if n == 0:
+        return pt_xform((0, 1))
+
+    _ = xpt_double(xpt_mult(pt, n >> 1))
+    return xpt_add(_, pt) if n & 1 else _
+
+
+def scalarmult(pt, e):
+    return pt_unxform(xpt_mult(pt_xform(pt), e))
+
+
+def encodeint(y):
+    bits = [(y >> i) & 1 for i in range(b)]
+    e = [(sum([bits[i * 8 + j] << j for j in range(8)]))
+         for i in range(b // 8)]
+    return asbytes(e)
+
+
+def encodepoint(P):
+    x = P[0]
+    y = P[1]
+    bits = [(y >> i) & 1 for i in range(b - 1)] + [x & 1]
+    e = [(sum([bits[i * 8 + j] << j for j in range(8)]))
+         for i in range(b // 8)]
+    return asbytes(e)
+
+
+def publickey(sk):
+    h = H(sk)
+    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
+    A = scalarmult(B, a)
+    return encodepoint(A)
+
+
+def Hint(m):
+    h = H(m)
+    return sum(2 ** i * bit(h, i) for i in range(2 * b))
+
+
+def signature(m, sk, pk):
+    h = H(sk)
+    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
+    inter = joinbytes([h[i] for i in range(b // 8, b // 4)])
+    r = Hint(inter + m)
+    R = scalarmult(B, r)
+    S = (r + Hint(encodepoint(R) + pk + m) * a) % l
+    return encodepoint(R) + encodeint(S)
+
+
+def isoncurve(P):
+    x = P[0]
+    y = P[1]
+    return (-x * x + y * y - 1 - d * x * x * y * y) % q == 0
+
+
+def decodeint(s):
+    return sum(2 ** i * bit(s, i) for i in range(0, b))
+
+
+def decodepoint(s):
+    y = sum(2 ** i * bit(s, i) for i in range(0, b - 1))
+    x = xrecover(y)
+    if x & 1 != bit(s, b - 1):
+        x = q - x
+
+    P = [x, y]
+    if not isoncurve(P):
+        raise Exception("decoding point that is not on curve")
+
+    return P
+
+
+def checkvalid(s, m, pk):
+    if len(s) != b // 4:
+        raise Exception("signature length is wrong")
+    if len(pk) != b // 8:
+        raise Exception("public-key length is wrong")
+
+    R = decodepoint(s[0:b // 8])
+    A = decodepoint(pk)
+    S = decodeint(s[b // 8:b // 4])
+    h = Hint(encodepoint(R) + pk + m)
+    v1 = scalarmult(B, S)
+    #  v2 = edwards(R,scalarmult(A,h))
+    v2 = pt_unxform(xpt_add(pt_xform(R), pt_xform(scalarmult(A, h))))
+    return v1 == v2
+
+
+##########################################################
+#
+# Curve25519 reference implementation by Matthew Dempsky, from:
+# http://cr.yp.to/highspeed/naclcrypto-20090310.pdf
+
+# P = 2 ** 255 - 19
+P = q
+A = 486662
+
+
+# def expmod(b, e, m):
+#    if e == 0: return 1
+#    t = expmod(b, e / 2, m) ** 2 % m
+#    if e & 1: t = (t * b) % m
+#    return t
+
+# def inv(x): return expmod(x, P - 2, P)
+
+
+def add(n, m, d):
+    (xn, zn) = n
+    (xm, zm) = m
+    (xd, zd) = d
+    x = 4 * (xm * xn - zm * zn) ** 2 * zd
+    z = 4 * (xm * zn - zm * xn) ** 2 * xd
+    return (x % P, z % P)
+
+
+def double(n):
+    (xn, zn) = n
+    x = (xn ** 2 - zn ** 2) ** 2
+    z = 4 * xn * zn * (xn ** 2 + A * xn * zn + zn ** 2)
+    return (x % P, z % P)
+
+
+def curve25519(n, base=9):
+    one = (base, 1)
+    two = double(one)
+
+    # f(m) evaluates to a tuple
+    # containing the mth multiple and the
+    # (m+1)th multiple of base.
+    def f(m):
+        if m == 1:
+            return (one, two)
+
+        (pm, pm1) = f(m // 2)
+        if m & 1:
+            return (add(pm, pm1, one), double(pm1))
+
+        return (double(pm), add(pm, pm1, one))
+
+    ((x, z), _) = f(n)
+    return (x * inv(z)) % P
+
+
+def genkey(n=0):
+    n = n or random.randint(0, P)
+    n &= ~7
+    n &= ~(128 << 8 * 31)
+    n |= 64 << 8 * 31
+    return n
+
+
+# def str2int(s):
+#    return int(hexlify(s), 16)
+#    # return sum(ord(s[i]) << (8 * i) for i in range(32))
+#
+# def int2str(n):
+#    return unhexlify("%x" % n)
+#    # return ''.join([chr((n >> (8 * i)) & 255) for i in range(32)])
+
+#################################################
+
+
+def dsa_test():
+    import os
+    msg = str(random.randint(q, q + q)).encode('utf-8')
+    sk = os.urandom(32)
+    pk = publickey(sk)
+    sig = signature(msg, sk, pk)
+    return checkvalid(sig, msg, pk)
+
+
+def dh_test():
+    sk1 = genkey()
+    sk2 = genkey()
+    return curve25519(sk1, curve25519(sk2)) == curve25519(sk2, curve25519(sk1))
diff --git a/venv/lib/python3.5/site-packages/wheel/signatures/ed25519py.py b/venv/lib/python3.5/site-packages/wheel/signatures/ed25519py.py
new file mode 100644
index 0000000..0c4ab8f
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/signatures/ed25519py.py
@@ -0,0 +1,50 @@
+import os
+import warnings
+from collections import namedtuple
+
+from . import djbec
+
+__all__ = ['crypto_sign', 'crypto_sign_open', 'crypto_sign_keypair', 'Keypair',
+           'PUBLICKEYBYTES', 'SECRETKEYBYTES', 'SIGNATUREBYTES']
+
+PUBLICKEYBYTES = 32
+SECRETKEYBYTES = 64
+SIGNATUREBYTES = 64
+
+Keypair = namedtuple('Keypair', ('vk', 'sk'))  # verifying key, secret key
+
+
+def crypto_sign_keypair(seed=None):
+    """Return (verifying, secret) key from a given seed, or os.urandom(32)"""
+    if seed is None:
+        seed = os.urandom(PUBLICKEYBYTES)
+    else:
+        warnings.warn("ed25519ll should choose random seed.",
+                      RuntimeWarning)
+    if len(seed) != 32:
+        raise ValueError("seed must be 32 random bytes or None.")
+    skbytes = seed
+    vkbytes = djbec.publickey(skbytes)
+    return Keypair(vkbytes, skbytes+vkbytes)
+
+
+def crypto_sign(msg, sk):
+    """Return signature+message given message and secret key.
+    The signature is the first SIGNATUREBYTES bytes of the return value.
+    A copy of msg is in the remainder."""
+    if len(sk) != SECRETKEYBYTES:
+        raise ValueError("Bad signing key length %d" % len(sk))
+    vkbytes = sk[PUBLICKEYBYTES:]
+    skbytes = sk[:PUBLICKEYBYTES]
+    sig = djbec.signature(msg, skbytes, vkbytes)
+    return sig + msg
+
+
+def crypto_sign_open(signed, vk):
+    """Return message given signature+message and the verifying key."""
+    if len(vk) != PUBLICKEYBYTES:
+        raise ValueError("Bad verifying key length %d" % len(vk))
+    rc = djbec.checkvalid(signed[:SIGNATUREBYTES], signed[SIGNATUREBYTES:], vk)
+    if not rc:
+        raise ValueError("rc != True", rc)
+    return signed[SIGNATUREBYTES:]
diff --git a/venv/lib/python3.5/site-packages/wheel/signatures/keys.py b/venv/lib/python3.5/site-packages/wheel/signatures/keys.py
new file mode 100644
index 0000000..eb5d4ac
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/signatures/keys.py
@@ -0,0 +1,101 @@
+"""Store and retrieve wheel signing / verifying keys.
+
+Given a scope (a package name, + meaning "all packages", or - meaning
+"no packages"), return a list of verifying keys that are trusted for that
+scope.
+
+Given a package name, return a list of (scope, key) suggested keys to sign
+that package (only the verifying keys; the private signing key is stored
+elsewhere).
+
+Keys here are represented as urlsafe_b64encoded strings with no padding.
+
+Tentative command line interface:
+
+# list trusts
+wheel trust
+# trust a particular key for all
+wheel trust + key
+# trust key for beaglevote
+wheel trust beaglevote key
+# stop trusting a key for all
+wheel untrust + key
+
+# generate a key pair
+wheel keygen
+
+# import a signing key from a file
+wheel import keyfile
+
+# export a signing key
+wheel export key
+"""
+
+import json
+import os.path
+
+from ..util import native, load_config_paths, save_config_path
+
+
+class WheelKeys(object):
+    SCHEMA = 1
+    CONFIG_NAME = 'wheel.json'
+
+    def __init__(self):
+        self.data = {'signers': [], 'verifiers': []}
+
+    def load(self):
+        # XXX JSON is not a great database
+        for path in load_config_paths('wheel'):
+            conf = os.path.join(native(path), self.CONFIG_NAME)
+            if os.path.exists(conf):
+                with open(conf, 'r') as infile:
+                    self.data = json.load(infile)
+                    for x in ('signers', 'verifiers'):
+                        if x not in self.data:
+                            self.data[x] = []
+                    if 'schema' not in self.data:
+                        self.data['schema'] = self.SCHEMA
+                    elif self.data['schema'] != self.SCHEMA:
+                        raise ValueError(
+                            "Bad wheel.json version {0}, expected {1}".format(
+                                self.data['schema'], self.SCHEMA))
+                break
+        return self
+
+    def save(self):
+        # Try not to call this a very long time after load()
+        path = save_config_path('wheel')
+        conf = os.path.join(native(path), self.CONFIG_NAME)
+        with open(conf, 'w+') as out:
+            json.dump(self.data, out, indent=2)
+        return self
+
+    def trust(self, scope, vk):
+        """Start trusting a particular key for given scope."""
+        self.data['verifiers'].append({'scope': scope, 'vk': vk})
+        return self
+
+    def untrust(self, scope, vk):
+        """Stop trusting a particular key for given scope."""
+        self.data['verifiers'].remove({'scope': scope, 'vk': vk})
+        return self
+
+    def trusted(self, scope=None):
+        """Return list of [(scope, trusted key), ...] for given scope."""
+        trust = [(x['scope'], x['vk']) for x in self.data['verifiers']
+                 if x['scope'] in (scope, '+')]
+        trust.sort(key=lambda x: x[0])
+        trust.reverse()
+        return trust
+
+    def signers(self, scope):
+        """Return list of signing key(s)."""
+        sign = [(x['scope'], x['vk']) for x in self.data['signers'] if x['scope'] in (scope, '+')]
+        sign.sort(key=lambda x: x[0])
+        sign.reverse()
+        return sign
+
+    def add_signer(self, scope, vk):
+        """Remember verifying key vk as being valid for signing in scope."""
+        self.data['signers'].append({'scope': scope, 'vk': vk})
diff --git a/venv/lib/python3.5/site-packages/wheel/tool/__init__.py b/venv/lib/python3.5/site-packages/wheel/tool/__init__.py
new file mode 100644
index 0000000..d6b9893
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/tool/__init__.py
@@ -0,0 +1,376 @@
+"""
+Wheel command-line utility.
+"""
+
+import argparse
+import hashlib
+import json
+import os
+import sys
+from glob import iglob
+
+from .. import signatures
+from ..install import WheelFile, VerifyingZipFile
+from ..paths import get_install_command
+from ..util import urlsafe_b64decode, urlsafe_b64encode, native, binary, matches_requirement
+
+
+def require_pkgresources(name):
+    try:
+        import pkg_resources  # noqa: F401
+    except ImportError:
+        raise RuntimeError("'{0}' needs pkg_resources (part of setuptools).".format(name))
+
+
+class WheelError(Exception):
+    pass
+
+
+# For testability
+def get_keyring():
+    try:
+        from ..signatures import keys
+        import keyring
+        assert keyring.get_keyring().priority
+    except (ImportError, AssertionError):
+        raise WheelError(
+            "Install wheel[signatures] (requires keyring, keyrings.alt, pyxdg) for signatures.")
+
+    return keys.WheelKeys, keyring
+
+
+def keygen(get_keyring=get_keyring):
+    """Generate a public/private key pair."""
+    WheelKeys, keyring = get_keyring()
+
+    ed25519ll = signatures.get_ed25519ll()
+
+    wk = WheelKeys().load()
+
+    keypair = ed25519ll.crypto_sign_keypair()
+    vk = native(urlsafe_b64encode(keypair.vk))
+    sk = native(urlsafe_b64encode(keypair.sk))
+    kr = keyring.get_keyring()
+    kr.set_password("wheel", vk, sk)
+    sys.stdout.write("Created Ed25519 keypair with vk={0}\n".format(vk))
+    sys.stdout.write("in {0!r}\n".format(kr))
+
+    sk2 = kr.get_password('wheel', vk)
+    if sk2 != sk:
+        raise WheelError("Keyring is broken. Could not retrieve secret key.")
+
+    sys.stdout.write("Trusting {0} to sign and verify all packages.\n".format(vk))
+    wk.add_signer('+', vk)
+    wk.trust('+', vk)
+    wk.save()
+
+
+def sign(wheelfile, replace=False, get_keyring=get_keyring):
+    """Sign a wheel"""
+    WheelKeys, keyring = get_keyring()
+
+    ed25519ll = signatures.get_ed25519ll()
+
+    wf = WheelFile(wheelfile, append=True)
+    wk = WheelKeys().load()
+
+    name = wf.parsed_filename.group('name')
+    sign_with = wk.signers(name)[0]
+    sys.stdout.write("Signing {0} with {1}\n".format(name, sign_with[1]))
+
+    vk = sign_with[1]
+    kr = keyring.get_keyring()
+    sk = kr.get_password('wheel', vk)
+    keypair = ed25519ll.Keypair(urlsafe_b64decode(binary(vk)),
+                                urlsafe_b64decode(binary(sk)))
+
+    record_name = wf.distinfo_name + '/RECORD'
+    sig_name = wf.distinfo_name + '/RECORD.jws'
+    if sig_name in wf.zipfile.namelist():
+        raise WheelError("Wheel is already signed.")
+    record_data = wf.zipfile.read(record_name)
+    payload = {"hash": "sha256=" + native(urlsafe_b64encode(hashlib.sha256(record_data).digest()))}
+    sig = signatures.sign(payload, keypair)
+    wf.zipfile.writestr(sig_name, json.dumps(sig, sort_keys=True))
+    wf.zipfile.close()
+
+
+def unsign(wheelfile):
+    """
+    Remove RECORD.jws from a wheel by truncating the zip file.
+
+    RECORD.jws must be at the end of the archive. The zip file must be an
+    ordinary archive, with the compressed files and the directory in the same
+    order, and without any non-zip content after the truncation point.
+    """
+    vzf = VerifyingZipFile(wheelfile, "a")
+    info = vzf.infolist()
+    if not (len(info) and info[-1].filename.endswith('/RECORD.jws')):
+        raise WheelError('The wheel is not signed (RECORD.jws not found at end of the archive).')
+    vzf.pop()
+    vzf.close()
+
+
+def verify(wheelfile):
+    """Verify a wheel.
+
+    The signature will be verified for internal consistency ONLY and printed.
+    Wheel's own unpack/install commands verify the manifest against the
+    signature and file contents.
+    """
+    wf = WheelFile(wheelfile)
+    sig_name = wf.distinfo_name + '/RECORD.jws'
+    try:
+        sig = json.loads(native(wf.zipfile.open(sig_name).read()))
+    except KeyError:
+        raise WheelError('The wheel is not signed (RECORD.jws not found at end of the archive).')
+
+    verified = signatures.verify(sig)
+    sys.stderr.write("Signatures are internally consistent.\n")
+    sys.stdout.write(json.dumps(verified, indent=2))
+    sys.stdout.write('\n')
+
+
+def unpack(wheelfile, dest='.'):
+    """Unpack a wheel.
+
+    Wheel content will be unpacked to {dest}/{name}-{ver}, where {name}
+    is the package name and {ver} its version.
+
+    :param wheelfile: The path to the wheel.
+    :param dest: Destination directory (default to current directory).
+    """
+    wf = WheelFile(wheelfile)
+    namever = wf.parsed_filename.group('namever')
+    destination = os.path.join(dest, namever)
+    sys.stderr.write("Unpacking to: %s\n" % (destination))
+    wf.zipfile.extractall(destination)
+    wf.zipfile.close()
+
+
+def install(requirements, requirements_file=None,
+            wheel_dirs=None, force=False, list_files=False,
+            dry_run=False):
+    """Install wheels.
+
+    :param requirements: A list of requirements or wheel files to install.
+    :param requirements_file: A file containing requirements to install.
+    :param wheel_dirs: A list of directories to search for wheels.
+    :param force: Install a wheel file even if it is not compatible.
+    :param list_files: Only list the files to install, don't install them.
+    :param dry_run: Do everything but the actual install.
+    """
+
+    # If no wheel directories specified, use the WHEELPATH environment
+    # variable, or the current directory if that is not set.
+    if not wheel_dirs:
+        wheelpath = os.getenv("WHEELPATH")
+        if wheelpath:
+            wheel_dirs = wheelpath.split(os.pathsep)
+        else:
+            wheel_dirs = [os.path.curdir]
+
+    # Get a list of all valid wheels in wheel_dirs
+    all_wheels = []
+    for d in wheel_dirs:
+        for w in os.listdir(d):
+            if w.endswith('.whl'):
+                wf = WheelFile(os.path.join(d, w))
+                if wf.compatible:
+                    all_wheels.append(wf)
+
+    # If there is a requirements file, add it to the list of requirements
+    if requirements_file:
+        # If the file doesn't exist, search for it in wheel_dirs
+        # This allows standard requirements files to be stored with the
+        # wheels.
+        if not os.path.exists(requirements_file):
+            for d in wheel_dirs:
+                name = os.path.join(d, requirements_file)
+                if os.path.exists(name):
+                    requirements_file = name
+                    break
+
+        with open(requirements_file) as fd:
+            requirements.extend(fd)
+
+    to_install = []
+    for req in requirements:
+        if req.endswith('.whl'):
+            # Explicitly specified wheel filename
+            if os.path.exists(req):
+                wf = WheelFile(req)
+                if wf.compatible or force:
+                    to_install.append(wf)
+                else:
+                    msg = ("{0} is not compatible with this Python. "
+                           "--force to install anyway.".format(req))
+                    raise WheelError(msg)
+            else:
+                # We could search on wheel_dirs, but it's probably OK to
+                # assume the user has made an error.
+                raise WheelError("No such wheel file: {}".format(req))
+            continue
+
+        # We have a requirement spec
+        # If we don't have pkg_resources, this will raise an exception
+        matches = matches_requirement(req, all_wheels)
+        if not matches:
+            raise WheelError("No match for requirement {}".format(req))
+        to_install.append(max(matches))
+
+    # We now have a list of wheels to install
+    if list_files:
+        sys.stdout.write("Installing:\n")
+
+    if dry_run:
+        return
+
+    for wf in to_install:
+        if list_files:
+            sys.stdout.write("    {0}\n".format(wf.filename))
+            continue
+        wf.install(force=force)
+        wf.zipfile.close()
+
+
+def install_scripts(distributions):
+    """
+    Regenerate the entry_points console_scripts for the named distribution.
+    """
+    try:
+        from setuptools.command import easy_install
+        import pkg_resources
+    except ImportError:
+        raise RuntimeError("'wheel install_scripts' needs setuptools.")
+
+    for dist in distributions:
+        pkg_resources_dist = pkg_resources.get_distribution(dist)
+        install = get_install_command(dist)
+        command = easy_install.easy_install(install.distribution)
+        command.args = ['wheel']  # dummy argument
+        command.finalize_options()
+        command.install_egg_scripts(pkg_resources_dist)
+
+
+def convert(installers, dest_dir, verbose):
+    require_pkgresources('wheel convert')
+
+    # Only support wheel convert if pkg_resources is present
+    from ..wininst2wheel import bdist_wininst2wheel
+    from ..egg2wheel import egg2wheel
+
+    for pat in installers:
+        for installer in iglob(pat):
+            if os.path.splitext(installer)[1] == '.egg':
+                conv = egg2wheel
+            else:
+                conv = bdist_wininst2wheel
+            if verbose:
+                sys.stdout.write("{0}... ".format(installer))
+                sys.stdout.flush()
+            conv(installer, dest_dir)
+            if verbose:
+                sys.stdout.write("OK\n")
+
+
+def parser():
+    p = argparse.ArgumentParser()
+    s = p.add_subparsers(help="commands")
+
+    def keygen_f(args):
+        keygen()
+    keygen_parser = s.add_parser('keygen', help='Generate signing key')
+    keygen_parser.set_defaults(func=keygen_f)
+
+    def sign_f(args):
+        sign(args.wheelfile)
+    sign_parser = s.add_parser('sign', help='Sign wheel')
+    sign_parser.add_argument('wheelfile', help='Wheel file')
+    sign_parser.set_defaults(func=sign_f)
+
+    def unsign_f(args):
+        unsign(args.wheelfile)
+    unsign_parser = s.add_parser('unsign', help=unsign.__doc__)
+    unsign_parser.add_argument('wheelfile', help='Wheel file')
+    unsign_parser.set_defaults(func=unsign_f)
+
+    def verify_f(args):
+        verify(args.wheelfile)
+    verify_parser = s.add_parser('verify', help=verify.__doc__)
+    verify_parser.add_argument('wheelfile', help='Wheel file')
+    verify_parser.set_defaults(func=verify_f)
+
+    def unpack_f(args):
+        unpack(args.wheelfile, args.dest)
+    unpack_parser = s.add_parser('unpack', help='Unpack wheel')
+    unpack_parser.add_argument('--dest', '-d', help='Destination directory',
+                               default='.')
+    unpack_parser.add_argument('wheelfile', help='Wheel file')
+    unpack_parser.set_defaults(func=unpack_f)
+
+    def install_f(args):
+        install(args.requirements, args.requirements_file,
+                args.wheel_dirs, args.force, args.list_files)
+    install_parser = s.add_parser('install', help='Install wheels')
+    install_parser.add_argument('requirements', nargs='*',
+                                help='Requirements to install.')
+    install_parser.add_argument('--force', default=False,
+                                action='store_true',
+                                help='Install incompatible wheel files.')
+    install_parser.add_argument('--wheel-dir', '-d', action='append',
+                                dest='wheel_dirs',
+                                help='Directories containing wheels.')
+    install_parser.add_argument('--requirements-file', '-r',
+                                help="A file containing requirements to "
+                                "install.")
+    install_parser.add_argument('--list', '-l', default=False,
+                                dest='list_files',
+                                action='store_true',
+                                help="List wheels which would be installed, "
+                                "but don't actually install anything.")
+    install_parser.set_defaults(func=install_f)
+
+    def install_scripts_f(args):
+        install_scripts(args.distributions)
+    install_scripts_parser = s.add_parser('install-scripts', help='Install console_scripts')
+    install_scripts_parser.add_argument('distributions', nargs='*',
+                                        help='Regenerate console_scripts for these distributions')
+    install_scripts_parser.set_defaults(func=install_scripts_f)
+
+    def convert_f(args):
+        convert(args.installers, args.dest_dir, args.verbose)
+    convert_parser = s.add_parser('convert', help='Convert egg or wininst to wheel')
+    convert_parser.add_argument('installers', nargs='*', help='Installers to convert')
+    convert_parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                                help="Directory to store wheels (default %(default)s)")
+    convert_parser.add_argument('--verbose', '-v', action='store_true')
+    convert_parser.set_defaults(func=convert_f)
+
+    def version_f(args):
+        from .. import __version__
+        sys.stdout.write("wheel %s\n" % __version__)
+    version_parser = s.add_parser('version', help='Print version and exit')
+    version_parser.set_defaults(func=version_f)
+
+    def help_f(args):
+        p.print_help()
+    help_parser = s.add_parser('help', help='Show this help')
+    help_parser.set_defaults(func=help_f)
+
+    return p
+
+
+def main():
+    p = parser()
+    args = p.parse_args()
+    if not hasattr(args, 'func'):
+        p.print_help()
+    else:
+        # XXX on Python 3.3 we get 'args has no func' rather than short help.
+        try:
+            args.func(args)
+            return 0
+        except WheelError as e:
+            sys.stderr.write(e.message + "\n")
+    return 1
diff --git a/venv/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc b/venv/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..e728176
Binary files /dev/null and b/venv/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv/lib/python3.5/site-packages/wheel/util.py b/venv/lib/python3.5/site-packages/wheel/util.py
new file mode 100644
index 0000000..c58d108
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/util.py
@@ -0,0 +1,176 @@
+"""Utility functions."""
+
+import base64
+import hashlib
+import json
+import os
+import sys
+from collections import OrderedDict
+
+__all__ = ['urlsafe_b64encode', 'urlsafe_b64decode', 'utf8',
+           'to_json', 'from_json', 'matches_requirement']
+
+
+# For encoding ascii back and forth between bytestrings, as is repeatedly
+# necessary in JSON-based crypto under Python 3
+if sys.version_info[0] < 3:
+    text_type = unicode  # noqa: F821
+
+    def native(s):
+        return s
+else:
+    text_type = str
+
+    def native(s):
+        if isinstance(s, bytes):
+            return s.decode('ascii')
+        return s
+
+
+def urlsafe_b64encode(data):
+    """urlsafe_b64encode without padding"""
+    return base64.urlsafe_b64encode(data).rstrip(binary('='))
+
+
+def urlsafe_b64decode(data):
+    """urlsafe_b64decode without padding"""
+    pad = b'=' * (4 - (len(data) & 3))
+    return base64.urlsafe_b64decode(data + pad)
+
+
+def to_json(o):
+    """Convert given data to JSON."""
+    return json.dumps(o, sort_keys=True)
+
+
+def from_json(j):
+    """Decode a JSON payload."""
+    return json.loads(j)
+
+
+def open_for_csv(name, mode):
+    if sys.version_info[0] < 3:
+        nl = {}
+        bin = 'b'
+    else:
+        nl = {'newline': ''}
+        bin = ''
+
+    return open(name, mode + bin, **nl)
+
+
+def utf8(data):
+    """Utf-8 encode data."""
+    if isinstance(data, text_type):
+        return data.encode('utf-8')
+    return data
+
+
+def binary(s):
+    if isinstance(s, text_type):
+        return s.encode('ascii')
+    return s
+
+
+class HashingFile(object):
+    def __init__(self, path, mode, hashtype='sha256'):
+        self.fd = open(path, mode)
+        self.hashtype = hashtype
+        self.hash = hashlib.new(hashtype)
+        self.length = 0
+
+    def write(self, data):
+        self.hash.update(data)
+        self.length += len(data)
+        self.fd.write(data)
+
+    def close(self):
+        self.fd.close()
+
+    def digest(self):
+        if self.hashtype == 'md5':
+            return self.hash.hexdigest()
+        digest = self.hash.digest()
+        return self.hashtype + '=' + native(urlsafe_b64encode(digest))
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.fd.close()
+
+
+class OrderedDefaultDict(OrderedDict):
+    def __init__(self, *args, **kwargs):
+        if not args:
+            self.default_factory = None
+        else:
+            if not (args[0] is None or callable(args[0])):
+                raise TypeError('first argument must be callable or None')
+            self.default_factory = args[0]
+            args = args[1:]
+        super(OrderedDefaultDict, self).__init__(*args, **kwargs)
+
+    def __missing__(self, key):
+        if self.default_factory is None:
+            raise KeyError(key)
+        self[key] = default = self.default_factory()
+        return default
+
+
+if sys.platform == 'win32':
+    import ctypes.wintypes
+    # CSIDL_APPDATA for reference - not used here for compatibility with
+    # dirspec, which uses LOCAL_APPDATA and COMMON_APPDATA in that order
+    csidl = dict(CSIDL_APPDATA=26, CSIDL_LOCAL_APPDATA=28, CSIDL_COMMON_APPDATA=35)
+
+    def get_path(name):
+        SHGFP_TYPE_CURRENT = 0
+        buf = ctypes.create_unicode_buffer(ctypes.wintypes.MAX_PATH)
+        ctypes.windll.shell32.SHGetFolderPathW(0, csidl[name], 0, SHGFP_TYPE_CURRENT, buf)
+        return buf.value
+
+    def save_config_path(*resource):
+        appdata = get_path("CSIDL_LOCAL_APPDATA")
+        path = os.path.join(appdata, *resource)
+        if not os.path.isdir(path):
+            os.makedirs(path)
+        return path
+
+    def load_config_paths(*resource):
+        ids = ["CSIDL_LOCAL_APPDATA", "CSIDL_COMMON_APPDATA"]
+        for id in ids:
+            base = get_path(id)
+            path = os.path.join(base, *resource)
+            if os.path.exists(path):
+                yield path
+else:
+    def save_config_path(*resource):
+        import xdg.BaseDirectory
+        return xdg.BaseDirectory.save_config_path(*resource)
+
+    def load_config_paths(*resource):
+        import xdg.BaseDirectory
+        return xdg.BaseDirectory.load_config_paths(*resource)
+
+
+def matches_requirement(req, wheels):
+    """List of wheels matching a requirement.
+
+    :param req: The requirement to satisfy
+    :param wheels: List of wheels to search.
+    """
+    try:
+        from pkg_resources import Distribution, Requirement
+    except ImportError:
+        raise RuntimeError("Cannot use requirements without pkg_resources")
+
+    req = Requirement.parse(req)
+
+    selected = []
+    for wf in wheels:
+        f = wf.parsed_filename
+        dist = Distribution(project_name=f.group("name"), version=f.group("ver"))
+        if dist in req:
+            selected.append(wf)
+    return selected
diff --git a/venv/lib/python3.5/site-packages/wheel/wininst2wheel.py b/venv/lib/python3.5/site-packages/wheel/wininst2wheel.py
new file mode 100644
index 0000000..b8a3469
--- /dev/null
+++ b/venv/lib/python3.5/site-packages/wheel/wininst2wheel.py
@@ -0,0 +1,217 @@
+#!/usr/bin/env python
+import distutils.dist
+import os.path
+import re
+import sys
+import tempfile
+import zipfile
+from argparse import ArgumentParser
+from glob import iglob
+from shutil import rmtree
+
+import wheel.bdist_wheel
+from wheel.archive import archive_wheelfile
+
+egg_info_re = re.compile(r'''(^|/)(?P<name>[^/]+?)-(?P<ver>.+?)
+    (-(?P<pyver>.+?))?(-(?P<arch>.+?))?.egg-info(/|$)''', re.VERBOSE)
+
+
+def parse_info(wininfo_name, egginfo_name):
+    """Extract metadata from filenames.
+
+    Extracts the 4 metadataitems needed (name, version, pyversion, arch) from
+    the installer filename and the name of the egg-info directory embedded in
+    the zipfile (if any).
+
+    The egginfo filename has the format::
+
+        name-ver(-pyver)(-arch).egg-info
+
+    The installer filename has the format::
+
+        name-ver.arch(-pyver).exe
+
+    Some things to note:
+
+    1. The installer filename is not definitive. An installer can be renamed
+       and work perfectly well as an installer. So more reliable data should
+       be used whenever possible.
+    2. The egg-info data should be preferred for the name and version, because
+       these come straight from the distutils metadata, and are mandatory.
+    3. The pyver from the egg-info data should be ignored, as it is
+       constructed from the version of Python used to build the installer,
+       which is irrelevant - the installer filename is correct here (even to
+       the point that when it's not there, any version is implied).
+    4. The architecture must be taken from the installer filename, as it is
+       not included in the egg-info data.
+    5. Architecture-neutral installers still have an architecture because the
+       installer format itself (being executable) is architecture-specific. We
+       should therefore ignore the architecture if the content is pure-python.
+    """
+
+    egginfo = None
+    if egginfo_name:
+        egginfo = egg_info_re.search(egginfo_name)
+        if not egginfo:
+            raise ValueError("Egg info filename %s is not valid" % (egginfo_name,))
+
+    # Parse the wininst filename
+    # 1. Distribution name (up to the first '-')
+    w_name, sep, rest = wininfo_name.partition('-')
+    if not sep:
+        raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
+
+    # Strip '.exe'
+    rest = rest[:-4]
+    # 2. Python version (from the last '-', must start with 'py')
+    rest2, sep, w_pyver = rest.rpartition('-')
+    if sep and w_pyver.startswith('py'):
+        rest = rest2
+        w_pyver = w_pyver.replace('.', '')
+    else:
+        # Not version specific - use py2.py3. While it is possible that
+        # pure-Python code is not compatible with both Python 2 and 3, there
+        # is no way of knowing from the wininst format, so we assume the best
+        # here (the user can always manually rename the wheel to be more
+        # restrictive if needed).
+        w_pyver = 'py2.py3'
+    # 3. Version and architecture
+    w_ver, sep, w_arch = rest.rpartition('.')
+    if not sep:
+        raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
+
+    if egginfo:
+        w_name = egginfo.group('name')
+        w_ver = egginfo.group('ver')
+
+    return dict(name=w_name, ver=w_ver, arch=w_arch, pyver=w_pyver)
+
+
+def bdist_wininst2wheel(path, dest_dir=os.path.curdir):
+    bdw = zipfile.ZipFile(path)
+
+    # Search for egg-info in the archive
+    egginfo_name = None
+    for filename in bdw.namelist():
+        if '.egg-info' in filename:
+            egginfo_name = filename
+            break
+
+    info = parse_info(os.path.basename(path), egginfo_name)
+
+    root_is_purelib = True
+    for zipinfo in bdw.infolist():
+        if zipinfo.filename.startswith('PLATLIB'):
+            root_is_purelib = False
+            break
+    if root_is_purelib:
+        paths = {'purelib': ''}
+    else:
+        paths = {'platlib': ''}
+
+    dist_info = "%(name)s-%(ver)s" % info
+    datadir = "%s.data/" % dist_info
+
+    # rewrite paths to trick ZipFile into extracting an egg
+    # XXX grab wininst .ini - between .exe, padding, and first zip file.
+    members = []
+    egginfo_name = ''
+    for zipinfo in bdw.infolist():
+        key, basename = zipinfo.filename.split('/', 1)
+        key = key.lower()
+        basepath = paths.get(key, None)
+        if basepath is None:
+            basepath = datadir + key.lower() + '/'
+        oldname = zipinfo.filename
+        newname = basepath + basename
+        zipinfo.filename = newname
+        del bdw.NameToInfo[oldname]
+        bdw.NameToInfo[newname] = zipinfo
+        # Collect member names, but omit '' (from an entry like "PLATLIB/"
+        if newname:
+            members.append(newname)
+        # Remember egg-info name for the egg2dist call below
+        if not egginfo_name:
+            if newname.endswith('.egg-info'):
+                egginfo_name = newname
+            elif '.egg-info/' in newname:
+                egginfo_name, sep, _ = newname.rpartition('/')
+    dir = tempfile.mkdtemp(suffix="_b2w")
+    bdw.extractall(dir, members)
+
+    # egg2wheel
+    abi = 'none'
+    pyver = info['pyver']
+    arch = (info['arch'] or 'any').replace('.', '_').replace('-', '_')
+    # Wininst installers always have arch even if they are not
+    # architecture-specific (because the format itself is).
+    # So, assume the content is architecture-neutral if root is purelib.
+    if root_is_purelib:
+        arch = 'any'
+    # If the installer is architecture-specific, it's almost certainly also
+    # CPython-specific.
+    if arch != 'any':
+        pyver = pyver.replace('py', 'cp')
+    wheel_name = '-'.join((
+                          dist_info,
+                          pyver,
+                          abi,
+                          arch
+                          ))
+    if root_is_purelib:
+        bw = wheel.bdist_wheel.bdist_wheel(distutils.dist.Distribution())
+    else:
+        bw = _bdist_wheel_tag(distutils.dist.Distribution())
+
+    bw.root_is_pure = root_is_purelib
+    bw.python_tag = pyver
+    bw.plat_name_supplied = True
+    bw.plat_name = info['arch'] or 'any'
+
+    if not root_is_purelib:
+        bw.full_tag_supplied = True
+        bw.full_tag = (pyver, abi, arch)
+
+    dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info)
+    bw.egg2dist(os.path.join(dir, egginfo_name), dist_info_dir)
+    bw.write_wheelfile(dist_info_dir, generator='wininst2wheel')
+    bw.write_record(dir, dist_info_dir)
+
+    archive_wheelfile(os.path.join(dest_dir, wheel_name), dir)
+    rmtree(dir)
+
+
+class _bdist_wheel_tag(wheel.bdist_wheel.bdist_wheel):
+    # allow the client to override the default generated wheel tag
+    # The default bdist_wheel implementation uses python and abi tags
+    # of the running python process. This is not suitable for
+    # generating/repackaging prebuild binaries.
+
+    full_tag_supplied = False
+    full_tag = None  # None or a (pytag, soabitag, plattag) triple
+
+    def get_tag(self):
+        if self.full_tag_supplied and self.full_tag is not None:
+            return self.full_tag
+        else:
+            return super(_bdist_wheel_tag, self).get_tag()
+
+
+def main():
+    parser = ArgumentParser()
+    parser.add_argument('installers', nargs='*', help="Installers to convert")
+    parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                        help="Directory to store wheels (default %(default)s)")
+    parser.add_argument('--verbose', '-v', action='store_true')
+    args = parser.parse_args()
+    for pat in args.installers:
+        for installer in iglob(pat):
+            if args.verbose:
+                sys.stdout.write("{0}... ".format(installer))
+            bdist_wininst2wheel(installer, args.dest_dir)
+            if args.verbose:
+                sys.stdout.write("OK\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/venv/lib/python3.5/site.py b/venv/lib/python3.5/site.py
new file mode 100644
index 0000000..7969769
--- /dev/null
+++ b/venv/lib/python3.5/site.py
@@ -0,0 +1,758 @@
+"""Append module search paths for third-party packages to sys.path.
+
+****************************************************************
+* This module is automatically imported during initialization. *
+****************************************************************
+
+In earlier versions of Python (up to 1.5a3), scripts or modules that
+needed to use site-specific modules would place ``import site''
+somewhere near the top of their code.  Because of the automatic
+import, this is no longer necessary (but code that does it still
+works).
+
+This will append site-specific paths to the module search path.  On
+Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
+appends lib/python<version>/site-packages as well as lib/site-python.
+It also supports the Debian convention of
+lib/python<version>/dist-packages.  On other platforms (mainly Mac and
+Windows), it uses just sys.prefix (and sys.exec_prefix, if different,
+but this is unlikely).  The resulting directories, if they exist, are
+appended to sys.path, and also inspected for path configuration files.
+
+FOR DEBIAN, this sys.path is augmented with directories in /usr/local.
+Local addons go into /usr/local/lib/python<version>/site-packages
+(resp. /usr/local/lib/site-python), Debian addons install into
+/usr/{lib,share}/python<version>/dist-packages.
+
+A path configuration file is a file whose name has the form
+<package>.pth; its contents are additional directories (one per line)
+to be added to sys.path.  Non-existing directories (or
+non-directories) are never added to sys.path; no directory is added to
+sys.path more than once.  Blank lines and lines beginning with
+'#' are skipped. Lines starting with 'import' are executed.
+
+For example, suppose sys.prefix and sys.exec_prefix are set to
+/usr/local and there is a directory /usr/local/lib/python2.X/site-packages
+with three subdirectories, foo, bar and spam, and two path
+configuration files, foo.pth and bar.pth.  Assume foo.pth contains the
+following:
+
+  # foo package configuration
+  foo
+  bar
+  bletch
+
+and bar.pth contains:
+
+  # bar package configuration
+  bar
+
+Then the following directories are added to sys.path, in this order:
+
+  /usr/local/lib/python2.X/site-packages/bar
+  /usr/local/lib/python2.X/site-packages/foo
+
+Note that bletch is omitted because it doesn't exist; bar precedes foo
+because bar.pth comes alphabetically before foo.pth; and spam is
+omitted because it is not mentioned in either path configuration file.
+
+After these path manipulations, an attempt is made to import a module
+named sitecustomize, which can perform arbitrary additional
+site-specific customizations.  If this import fails with an
+ImportError exception, it is silently ignored.
+
+"""
+
+import sys
+import os
+try:
+    import __builtin__ as builtins
+except ImportError:
+    import builtins
+try:
+    set
+except NameError:
+    from sets import Set as set
+
+# Prefixes for site-packages; add additional prefixes like /usr/local here
+PREFIXES = [sys.prefix, sys.exec_prefix]
+# Enable per user site-packages directory
+# set it to False to disable the feature or True to force the feature
+ENABLE_USER_SITE = None
+# for distutils.commands.install
+USER_SITE = None
+USER_BASE = None
+
+_is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32
+_is_pypy = hasattr(sys, 'pypy_version_info')
+_is_jython = sys.platform[:4] == 'java'
+if _is_jython:
+    ModuleType = type(os)
+
+def makepath(*paths):
+    dir = os.path.join(*paths)
+    if _is_jython and (dir == '__classpath__' or
+                       dir.startswith('__pyclasspath__')):
+        return dir, dir
+    dir = os.path.abspath(dir)
+    return dir, os.path.normcase(dir)
+
+def abs__file__():
+    """Set all module' __file__ attribute to an absolute path"""
+    for m in sys.modules.values():
+        if ((_is_jython and not isinstance(m, ModuleType)) or
+            hasattr(m, '__loader__')):
+            # only modules need the abspath in Jython. and don't mess
+            # with a PEP 302-supplied __file__
+            continue
+        f = getattr(m, '__file__', None)
+        if f is None:
+            continue
+        m.__file__ = os.path.abspath(f)
+
+def removeduppaths():
+    """ Remove duplicate entries from sys.path along with making them
+    absolute"""
+    # This ensures that the initial path provided by the interpreter contains
+    # only absolute pathnames, even if we're running from the build directory.
+    L = []
+    known_paths = set()
+    for dir in sys.path:
+        # Filter out duplicate paths (on case-insensitive file systems also
+        # if they only differ in case); turn relative paths into absolute
+        # paths.
+        dir, dircase = makepath(dir)
+        if not dircase in known_paths:
+            L.append(dir)
+            known_paths.add(dircase)
+    sys.path[:] = L
+    return known_paths
+
+# XXX This should not be part of site.py, since it is needed even when
+# using the -S option for Python.  See http://www.python.org/sf/586680
+def addbuilddir():
+    """Append ./build/lib.<platform> in case we're running in the build dir
+    (especially for Guido :-)"""
+    from distutils.util import get_platform
+    s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
+    if hasattr(sys, 'gettotalrefcount'):
+        s += '-pydebug'
+    s = os.path.join(os.path.dirname(sys.path[-1]), s)
+    sys.path.append(s)
+
+def _init_pathinfo():
+    """Return a set containing all existing directory entries from sys.path"""
+    d = set()
+    for dir in sys.path:
+        try:
+            if os.path.isdir(dir):
+                dir, dircase = makepath(dir)
+                d.add(dircase)
+        except TypeError:
+            continue
+    return d
+
+def addpackage(sitedir, name, known_paths):
+    """Add a new path to known_paths by combining sitedir and 'name' or execute
+    sitedir if it starts with 'import'"""
+    if known_paths is None:
+        _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    fullname = os.path.join(sitedir, name)
+    try:
+        f = open(fullname, "rU")
+    except IOError:
+        return
+    try:
+        for line in f:
+            if line.startswith("#"):
+                continue
+            if line.startswith("import"):
+                exec(line)
+                continue
+            line = line.rstrip()
+            dir, dircase = makepath(sitedir, line)
+            if not dircase in known_paths and os.path.exists(dir):
+                sys.path.append(dir)
+                known_paths.add(dircase)
+    finally:
+        f.close()
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitedir(sitedir, known_paths=None):
+    """Add 'sitedir' argument to sys.path if missing and handle .pth files in
+    'sitedir'"""
+    if known_paths is None:
+        known_paths = _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    sitedir, sitedircase = makepath(sitedir)
+    if not sitedircase in known_paths:
+        sys.path.append(sitedir)        # Add path component
+    try:
+        names = os.listdir(sitedir)
+    except os.error:
+        return
+    names.sort()
+    for name in names:
+        if name.endswith(os.extsep + "pth"):
+            addpackage(sitedir, name, known_paths)
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix):
+    """Add site-packages (and possibly site-python) to sys.path"""
+    prefixes = [os.path.join(sys_prefix, "local"), sys_prefix]
+    if exec_prefix != sys_prefix:
+        prefixes.append(os.path.join(exec_prefix, "local"))
+
+    for prefix in prefixes:
+        if prefix:
+            if sys.platform in ('os2emx', 'riscos') or _is_jython:
+                sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
+            elif _is_pypy:
+                sitedirs = [os.path.join(prefix, 'site-packages')]
+            elif sys.platform == 'darwin' and prefix == sys_prefix:
+
+                if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python
+
+                    sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"),
+                                os.path.join(prefix, "Extras", "lib", "python")]
+
+                else: # any other Python distros on OSX work this way
+                    sitedirs = [os.path.join(prefix, "lib",
+                                             "python" + sys.version[:3], "site-packages")]
+
+            elif os.sep == '/':
+                sitedirs = [os.path.join(prefix,
+                                         "lib",
+                                         "python" + sys.version[:3],
+                                         "site-packages"),
+                            os.path.join(prefix, "lib", "site-python"),
+                            os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")]
+                lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages")
+                if (os.path.exists(lib64_dir) and
+                    os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]):
+                    if _is_64bit:
+                        sitedirs.insert(0, lib64_dir)
+                    else:
+                        sitedirs.append(lib64_dir)
+                try:
+                    # sys.getobjects only available in --with-pydebug build
+                    sys.getobjects
+                    sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
+                except AttributeError:
+                    pass
+                # Debian-specific dist-packages directories:
+                sitedirs.append(os.path.join(prefix, "local/lib",
+                                             "python" + sys.version[:3],
+                                             "dist-packages"))
+                if sys.version[0] == '2':
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[:3],
+                                                 "dist-packages"))
+                else:
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[0],
+                                                 "dist-packages"))
+                sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
+            else:
+                sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
+            if sys.platform == 'darwin':
+                # for framework builds *only* we add the standard Apple
+                # locations. Currently only per-user, but /Library and
+                # /Network/Library could be added too
+                if 'Python.framework' in prefix:
+                    home = os.environ.get('HOME')
+                    if home:
+                        sitedirs.append(
+                            os.path.join(home,
+                                         'Library',
+                                         'Python',
+                                         sys.version[:3],
+                                         'site-packages'))
+            for sitedir in sitedirs:
+                if os.path.isdir(sitedir):
+                    addsitedir(sitedir, known_paths)
+    return None
+
+def check_enableusersite():
+    """Check if user site directory is safe for inclusion
+
+    The function tests for the command line flag (including environment var),
+    process uid/gid equal to effective uid/gid.
+
+    None: Disabled for security reasons
+    False: Disabled by user (command line option)
+    True: Safe and enabled
+    """
+    if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
+        return False
+
+    if hasattr(os, "getuid") and hasattr(os, "geteuid"):
+        # check process uid == effective uid
+        if os.geteuid() != os.getuid():
+            return None
+    if hasattr(os, "getgid") and hasattr(os, "getegid"):
+        # check process gid == effective gid
+        if os.getegid() != os.getgid():
+            return None
+
+    return True
+
+def addusersitepackages(known_paths):
+    """Add a per user site-package to sys.path
+
+    Each user has its own python directory with site-packages in the
+    home directory.
+
+    USER_BASE is the root directory for all Python versions
+
+    USER_SITE is the user specific site-packages directory
+
+    USER_SITE/.. can be used for data.
+    """
+    global USER_BASE, USER_SITE, ENABLE_USER_SITE
+    env_base = os.environ.get("PYTHONUSERBASE", None)
+
+    def joinuser(*args):
+        return os.path.expanduser(os.path.join(*args))
+
+    #if sys.platform in ('os2emx', 'riscos'):
+    #    # Don't know what to put here
+    #    USER_BASE = ''
+    #    USER_SITE = ''
+    if os.name == "nt":
+        base = os.environ.get("APPDATA") or "~"
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser(base, "Python")
+        USER_SITE = os.path.join(USER_BASE,
+                                 "Python" + sys.version[0] + sys.version[2],
+                                 "site-packages")
+    else:
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser("~", ".local")
+        USER_SITE = os.path.join(USER_BASE, "lib",
+                                 "python" + sys.version[:3],
+                                 "site-packages")
+
+    if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
+        addsitedir(USER_SITE, known_paths)
+    if ENABLE_USER_SITE:
+        for dist_libdir in ("lib", "local/lib"):
+            user_site = os.path.join(USER_BASE, dist_libdir,
+                                     "python" + sys.version[:3],
+                                     "dist-packages")
+            if os.path.isdir(user_site):
+                addsitedir(user_site, known_paths)
+    return known_paths
+
+
+
+def setBEGINLIBPATH():
+    """The OS/2 EMX port has optional extension modules that do double duty
+    as DLLs (and must use the .DLL file extension) for other extensions.
+    The library search path needs to be amended so these will be found
+    during module import.  Use BEGINLIBPATH so that these are at the start
+    of the library search path.
+
+    """
+    dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
+    libpath = os.environ['BEGINLIBPATH'].split(';')
+    if libpath[-1]:
+        libpath.append(dllpath)
+    else:
+        libpath[-1] = dllpath
+    os.environ['BEGINLIBPATH'] = ';'.join(libpath)
+
+
+def setquit():
+    """Define new built-ins 'quit' and 'exit'.
+    These are simply strings that display a hint on how to exit.
+
+    """
+    if os.sep == ':':
+        eof = 'Cmd-Q'
+    elif os.sep == '\\':
+        eof = 'Ctrl-Z plus Return'
+    else:
+        eof = 'Ctrl-D (i.e. EOF)'
+
+    class Quitter(object):
+        def __init__(self, name):
+            self.name = name
+        def __repr__(self):
+            return 'Use %s() or %s to exit' % (self.name, eof)
+        def __call__(self, code=None):
+            # Shells like IDLE catch the SystemExit, but listen when their
+            # stdin wrapper is closed.
+            try:
+                sys.stdin.close()
+            except:
+                pass
+            raise SystemExit(code)
+    builtins.quit = Quitter('quit')
+    builtins.exit = Quitter('exit')
+
+
+class _Printer(object):
+    """interactive prompt objects for printing the license text, a list of
+    contributors and the copyright notice."""
+
+    MAXLINES = 23
+
+    def __init__(self, name, data, files=(), dirs=()):
+        self.__name = name
+        self.__data = data
+        self.__files = files
+        self.__dirs = dirs
+        self.__lines = None
+
+    def __setup(self):
+        if self.__lines:
+            return
+        data = None
+        for dir in self.__dirs:
+            for filename in self.__files:
+                filename = os.path.join(dir, filename)
+                try:
+                    fp = open(filename, "rU")
+                    data = fp.read()
+                    fp.close()
+                    break
+                except IOError:
+                    pass
+            if data:
+                break
+        if not data:
+            data = self.__data
+        self.__lines = data.split('\n')
+        self.__linecnt = len(self.__lines)
+
+    def __repr__(self):
+        self.__setup()
+        if len(self.__lines) <= self.MAXLINES:
+            return "\n".join(self.__lines)
+        else:
+            return "Type %s() to see the full %s text" % ((self.__name,)*2)
+
+    def __call__(self):
+        self.__setup()
+        prompt = 'Hit Return for more, or q (and Return) to quit: '
+        lineno = 0
+        while 1:
+            try:
+                for i in range(lineno, lineno + self.MAXLINES):
+                    print(self.__lines[i])
+            except IndexError:
+                break
+            else:
+                lineno += self.MAXLINES
+                key = None
+                while key is None:
+                    try:
+                        key = raw_input(prompt)
+                    except NameError:
+                        key = input(prompt)
+                    if key not in ('', 'q'):
+                        key = None
+                if key == 'q':
+                    break
+
+def setcopyright():
+    """Set 'copyright' and 'credits' in __builtin__"""
+    builtins.copyright = _Printer("copyright", sys.copyright)
+    if _is_jython:
+        builtins.credits = _Printer(
+            "credits",
+            "Jython is maintained by the Jython developers (www.jython.org).")
+    elif _is_pypy:
+        builtins.credits = _Printer(
+            "credits",
+            "PyPy is maintained by the PyPy developers: http://pypy.org/")
+    else:
+        builtins.credits = _Printer("credits", """\
+    Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
+    for supporting Python development.  See www.python.org for more information.""")
+    here = os.path.dirname(os.__file__)
+    builtins.license = _Printer(
+        "license", "See http://www.python.org/%.3s/license.html" % sys.version,
+        ["LICENSE.txt", "LICENSE"],
+        [os.path.join(here, os.pardir), here, os.curdir])
+
+
+class _Helper(object):
+    """Define the built-in 'help'.
+    This is a wrapper around pydoc.help (with a twist).
+
+    """
+
+    def __repr__(self):
+        return "Type help() for interactive help, " \
+               "or help(object) for help about object."
+    def __call__(self, *args, **kwds):
+        import pydoc
+        return pydoc.help(*args, **kwds)
+
+def sethelper():
+    builtins.help = _Helper()
+
+def aliasmbcs():
+    """On Windows, some default encodings are not provided by Python,
+    while they are always available as "mbcs" in each locale. Make
+    them usable by aliasing to "mbcs" in such a case."""
+    if sys.platform == 'win32':
+        import locale, codecs
+        enc = locale.getdefaultlocale()[1]
+        if enc.startswith('cp'):            # "cp***" ?
+            try:
+                codecs.lookup(enc)
+            except LookupError:
+                import encodings
+                encodings._cache[enc] = encodings._unknown
+                encodings.aliases.aliases[enc] = 'mbcs'
+
+def setencoding():
+    """Set the string encoding used by the Unicode implementation.  The
+    default is 'ascii', but if you're willing to experiment, you can
+    change this."""
+    encoding = "ascii" # Default value set by _PyUnicode_Init()
+    if 0:
+        # Enable to support locale aware default string encodings.
+        import locale
+        loc = locale.getdefaultlocale()
+        if loc[1]:
+            encoding = loc[1]
+    if 0:
+        # Enable to switch off string to Unicode coercion and implicit
+        # Unicode to string conversion.
+        encoding = "undefined"
+    if encoding != "ascii":
+        # On Non-Unicode builds this will raise an AttributeError...
+        sys.setdefaultencoding(encoding) # Needs Python Unicode build !
+
+
+def execsitecustomize():
+    """Run custom site specific code, if available."""
+    try:
+        import sitecustomize
+    except ImportError:
+        pass
+
+def virtual_install_main_packages():
+    f = open(os.path.join(os.path.dirname(__file__), 'orig-prefix.txt'))
+    sys.real_prefix = f.read().strip()
+    f.close()
+    pos = 2
+    hardcoded_relative_dirs = []
+    if sys.path[0] == '':
+        pos += 1
+    if _is_jython:
+        paths = [os.path.join(sys.real_prefix, 'Lib')]
+    elif _is_pypy:
+        if sys.version_info > (3, 2):
+            cpyver = '%d' % sys.version_info[0]
+        elif sys.pypy_version_info >= (1, 5):
+            cpyver = '%d.%d' % sys.version_info[:2]
+        else:
+            cpyver = '%d.%d.%d' % sys.version_info[:3]
+        paths = [os.path.join(sys.real_prefix, 'lib_pypy'),
+                 os.path.join(sys.real_prefix, 'lib-python', cpyver)]
+        if sys.pypy_version_info < (1, 9):
+            paths.insert(1, os.path.join(sys.real_prefix,
+                                         'lib-python', 'modified-%s' % cpyver))
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        #
+        # This is hardcoded in the Python executable, but relative to sys.prefix:
+        for path in paths[:]:
+            plat_path = os.path.join(path, 'plat-%s' % sys.platform)
+            if os.path.exists(plat_path):
+                paths.append(plat_path)
+    elif sys.platform == 'win32':
+        paths = [os.path.join(sys.real_prefix, 'Lib'), os.path.join(sys.real_prefix, 'DLLs')]
+    else:
+        paths = [os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3])]
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        lib64_path = os.path.join(sys.real_prefix, 'lib64', 'python'+sys.version[:3])
+        if os.path.exists(lib64_path):
+            if _is_64bit:
+                paths.insert(0, lib64_path)
+            else:
+                paths.append(lib64_path)
+        # This is hardcoded in the Python executable, but relative to
+        # sys.prefix.  Debian change: we need to add the multiarch triplet
+        # here, which is where the real stuff lives.  As per PEP 421, in
+        # Python 3.3+, this lives in sys.implementation, while in Python 2.7
+        # it lives in sys.
+        try:
+            arch = getattr(sys, 'implementation', sys)._multiarch
+        except AttributeError:
+            # This is a non-multiarch aware Python.  Fallback to the old way.
+            arch = sys.platform
+        plat_path = os.path.join(sys.real_prefix, 'lib',
+                                 'python'+sys.version[:3],
+                                 'plat-%s' % arch)
+        if os.path.exists(plat_path):
+            paths.append(plat_path)
+    # This is hardcoded in the Python executable, but
+    # relative to sys.prefix, so we have to fix up:
+    for path in list(paths):
+        tk_dir = os.path.join(path, 'lib-tk')
+        if os.path.exists(tk_dir):
+            paths.append(tk_dir)
+
+    # These are hardcoded in the Apple's Python executable,
+    # but relative to sys.prefix, so we have to fix them up:
+    if sys.platform == 'darwin':
+        hardcoded_paths = [os.path.join(relative_dir, module)
+                           for relative_dir in hardcoded_relative_dirs
+                           for module in ('plat-darwin', 'plat-mac', 'plat-mac/lib-scriptpackages')]
+
+        for path in hardcoded_paths:
+            if os.path.exists(path):
+                paths.append(path)
+
+    sys.path.extend(paths)
+
+def force_global_eggs_after_local_site_packages():
+    """
+    Force easy_installed eggs in the global environment to get placed
+    in sys.path after all packages inside the virtualenv.  This
+    maintains the "least surprise" result that packages in the
+    virtualenv always mask global packages, never the other way
+    around.
+
+    """
+    egginsert = getattr(sys, '__egginsert', 0)
+    for i, path in enumerate(sys.path):
+        if i > egginsert and path.startswith(sys.prefix):
+            egginsert = i
+    sys.__egginsert = egginsert + 1
+
+def virtual_addsitepackages(known_paths):
+    force_global_eggs_after_local_site_packages()
+    return addsitepackages(known_paths, sys_prefix=sys.real_prefix)
+
+def fixclasspath():
+    """Adjust the special classpath sys.path entries for Jython. These
+    entries should follow the base virtualenv lib directories.
+    """
+    paths = []
+    classpaths = []
+    for path in sys.path:
+        if path == '__classpath__' or path.startswith('__pyclasspath__'):
+            classpaths.append(path)
+        else:
+            paths.append(path)
+    sys.path = paths
+    sys.path.extend(classpaths)
+
+def execusercustomize():
+    """Run custom user specific code, if available."""
+    try:
+        import usercustomize
+    except ImportError:
+        pass
+
+
+def main():
+    global ENABLE_USER_SITE
+    virtual_install_main_packages()
+    abs__file__()
+    paths_in_sys = removeduppaths()
+    if (os.name == "posix" and sys.path and
+        os.path.basename(sys.path[-1]) == "Modules"):
+        addbuilddir()
+    if _is_jython:
+        fixclasspath()
+    GLOBAL_SITE_PACKAGES = not os.path.exists(os.path.join(os.path.dirname(__file__), 'no-global-site-packages.txt'))
+    if not GLOBAL_SITE_PACKAGES:
+        ENABLE_USER_SITE = False
+    if ENABLE_USER_SITE is None:
+        ENABLE_USER_SITE = check_enableusersite()
+    paths_in_sys = addsitepackages(paths_in_sys)
+    paths_in_sys = addusersitepackages(paths_in_sys)
+    if GLOBAL_SITE_PACKAGES:
+        paths_in_sys = virtual_addsitepackages(paths_in_sys)
+    if sys.platform == 'os2emx':
+        setBEGINLIBPATH()
+    setquit()
+    setcopyright()
+    sethelper()
+    aliasmbcs()
+    setencoding()
+    execsitecustomize()
+    if ENABLE_USER_SITE:
+        execusercustomize()
+    # Remove sys.setdefaultencoding() so that users cannot change the
+    # encoding after initialization.  The test for presence is needed when
+    # this module is run as a script, because this code is executed twice.
+    if hasattr(sys, "setdefaultencoding"):
+        del sys.setdefaultencoding
+
+main()
+
+def _script():
+    help = """\
+    %s [--user-base] [--user-site]
+
+    Without arguments print some useful information
+    With arguments print the value of USER_BASE and/or USER_SITE separated
+    by '%s'.
+
+    Exit codes with --user-base or --user-site:
+      0 - user site directory is enabled
+      1 - user site directory is disabled by user
+      2 - uses site directory is disabled by super user
+          or for security reasons
+     >2 - unknown error
+    """
+    args = sys.argv[1:]
+    if not args:
+        print("sys.path = [")
+        for dir in sys.path:
+            print("    %r," % (dir,))
+        print("]")
+        def exists(path):
+            if os.path.isdir(path):
+                return "exists"
+            else:
+                return "doesn't exist"
+        print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
+        print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
+        print("ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE)
+        sys.exit(0)
+
+    buffer = []
+    if '--user-base' in args:
+        buffer.append(USER_BASE)
+    if '--user-site' in args:
+        buffer.append(USER_SITE)
+
+    if buffer:
+        print(os.pathsep.join(buffer))
+        if ENABLE_USER_SITE:
+            sys.exit(0)
+        elif ENABLE_USER_SITE is False:
+            sys.exit(1)
+        elif ENABLE_USER_SITE is None:
+            sys.exit(2)
+        else:
+            sys.exit(3)
+    else:
+        import textwrap
+        print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
+        sys.exit(10)
+
+if __name__ == '__main__':
+    _script()
diff --git a/venv/lib/python3.5/sre_compile.py b/venv/lib/python3.5/sre_compile.py
new file mode 120000
index 0000000..c6a9dd9
--- /dev/null
+++ b/venv/lib/python3.5/sre_compile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_compile.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/sre_constants.py b/venv/lib/python3.5/sre_constants.py
new file mode 120000
index 0000000..1e4f5e8
--- /dev/null
+++ b/venv/lib/python3.5/sre_constants.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_constants.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/sre_parse.py b/venv/lib/python3.5/sre_parse.py
new file mode 120000
index 0000000..e6ff23d
--- /dev/null
+++ b/venv/lib/python3.5/sre_parse.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_parse.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/stat.py b/venv/lib/python3.5/stat.py
new file mode 120000
index 0000000..7b06884
--- /dev/null
+++ b/venv/lib/python3.5/stat.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/stat.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/struct.py b/venv/lib/python3.5/struct.py
new file mode 120000
index 0000000..0021bec
--- /dev/null
+++ b/venv/lib/python3.5/struct.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/struct.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/tarfile.py b/venv/lib/python3.5/tarfile.py
new file mode 120000
index 0000000..2a13ecb
--- /dev/null
+++ b/venv/lib/python3.5/tarfile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tarfile.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/tempfile.py b/venv/lib/python3.5/tempfile.py
new file mode 120000
index 0000000..c4a6786
--- /dev/null
+++ b/venv/lib/python3.5/tempfile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tempfile.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/token.py b/venv/lib/python3.5/token.py
new file mode 120000
index 0000000..1d51577
--- /dev/null
+++ b/venv/lib/python3.5/token.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/token.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/tokenize.py b/venv/lib/python3.5/tokenize.py
new file mode 120000
index 0000000..c0c6617
--- /dev/null
+++ b/venv/lib/python3.5/tokenize.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tokenize.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/types.py b/venv/lib/python3.5/types.py
new file mode 120000
index 0000000..9262928
--- /dev/null
+++ b/venv/lib/python3.5/types.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/types.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/warnings.py b/venv/lib/python3.5/warnings.py
new file mode 120000
index 0000000..0bd4591
--- /dev/null
+++ b/venv/lib/python3.5/warnings.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/warnings.py
\ No newline at end of file
diff --git a/venv/lib/python3.5/weakref.py b/venv/lib/python3.5/weakref.py
new file mode 120000
index 0000000..1893432
--- /dev/null
+++ b/venv/lib/python3.5/weakref.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/weakref.py
\ No newline at end of file
diff --git a/venv/pip-selfcheck.json b/venv/pip-selfcheck.json
new file mode 100644
index 0000000..f3b4c8c
--- /dev/null
+++ b/venv/pip-selfcheck.json
@@ -0,0 +1 @@
+{"last_check":"2017-12-10T20:23:26Z","pypi_version":"9.0.1"}
\ No newline at end of file
diff --git a/venv1/bin/activate b/venv1/bin/activate
new file mode 100644
index 0000000..3e48d09
--- /dev/null
+++ b/venv1/bin/activate
@@ -0,0 +1,78 @@
+# This file must be used with "source bin/activate" *from bash*
+# you cannot run it directly
+
+deactivate () {
+    unset -f pydoc >/dev/null 2>&1
+
+    # reset old environment variables
+    # ! [ -z ${VAR+_} ] returns true if VAR is declared at all
+    if ! [ -z "${_OLD_VIRTUAL_PATH+_}" ] ; then
+        PATH="$_OLD_VIRTUAL_PATH"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if ! [ -z "${_OLD_VIRTUAL_PYTHONHOME+_}" ] ; then
+        PYTHONHOME="$_OLD_VIRTUAL_PYTHONHOME"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH-}" ] || [ -n "${ZSH_VERSION-}" ] ; then
+        hash -r 2>/dev/null
+    fi
+
+    if ! [ -z "${_OLD_VIRTUAL_PS1+_}" ] ; then
+        PS1="$_OLD_VIRTUAL_PS1"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    if [ ! "${1-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+VIRTUAL_ENV="/home/mix/PycharmProjects/kea_for_miners/venv1"
+export VIRTUAL_ENV
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/bin:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+if ! [ -z "${PYTHONHOME+_}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="$PYTHONHOME"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT-}" ] ; then
+    _OLD_VIRTUAL_PS1="$PS1"
+    if [ "x" != x ] ; then
+        PS1="$PS1"
+    else
+        PS1="(`basename \"$VIRTUAL_ENV\"`) $PS1"
+    fi
+    export PS1
+fi
+
+# Make sure to unalias pydoc if it's already there
+alias pydoc 2>/dev/null >/dev/null && unalias pydoc
+
+pydoc () {
+    python -m pydoc "$@"
+}
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH-}" ] || [ -n "${ZSH_VERSION-}" ] ; then
+    hash -r 2>/dev/null
+fi
diff --git a/venv1/bin/activate.csh b/venv1/bin/activate.csh
new file mode 100644
index 0000000..6005175
--- /dev/null
+++ b/venv1/bin/activate.csh
@@ -0,0 +1,36 @@
+# This file must be used with "source bin/activate.csh" *from csh*.
+# You cannot run it directly.
+# Created by Davide Di Blasi <davidedb@gmail.com>.
+
+alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate && unalias pydoc'
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+setenv VIRTUAL_ENV "/home/mix/PycharmProjects/kea_for_miners/venv1"
+
+set _OLD_VIRTUAL_PATH="$PATH"
+setenv PATH "$VIRTUAL_ENV/bin:$PATH"
+
+
+
+if ("" != "") then
+    set env_name = ""
+else
+    set env_name = `basename "$VIRTUAL_ENV"`
+endif
+
+# Could be in a non-interactive environment,
+# in which case, $prompt is undefined and we wouldn't
+# care about the prompt anyway.
+if ( $?prompt ) then
+    set _OLD_VIRTUAL_PROMPT="$prompt"
+    set prompt = "[$env_name] $prompt"
+endif
+
+unset env_name
+
+alias pydoc python -m pydoc
+
+rehash
+
diff --git a/venv1/bin/activate.fish b/venv1/bin/activate.fish
new file mode 100644
index 0000000..c6b4511
--- /dev/null
+++ b/venv1/bin/activate.fish
@@ -0,0 +1,76 @@
+# This file must be used using `. bin/activate.fish` *within a running fish ( http://fishshell.com ) session*.
+# Do not run it directly.
+
+function deactivate -d 'Exit virtualenv mode and return to the normal environment.'
+    # reset old environment variables
+    if test -n "$_OLD_VIRTUAL_PATH"
+        set -gx PATH $_OLD_VIRTUAL_PATH
+        set -e _OLD_VIRTUAL_PATH
+    end
+
+    if test -n "$_OLD_VIRTUAL_PYTHONHOME"
+        set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
+        set -e _OLD_VIRTUAL_PYTHONHOME
+    end
+
+    if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
+        # Set an empty local `$fish_function_path` to allow the removal of `fish_prompt` using `functions -e`.
+        set -l fish_function_path
+
+        # Erase virtualenv's `fish_prompt` and restore the original.
+        functions -e fish_prompt
+        functions -c _old_fish_prompt fish_prompt
+        functions -e _old_fish_prompt
+        set -e _OLD_FISH_PROMPT_OVERRIDE
+    end
+
+    set -e VIRTUAL_ENV
+
+    if test "$argv[1]" != 'nondestructive'
+        # Self-destruct!
+        functions -e pydoc
+        functions -e deactivate
+    end
+end
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+set -gx VIRTUAL_ENV "/home/mix/PycharmProjects/kea_for_miners/venv1"
+
+set -gx _OLD_VIRTUAL_PATH $PATH
+set -gx PATH "$VIRTUAL_ENV/bin" $PATH
+
+# Unset `$PYTHONHOME` if set.
+if set -q PYTHONHOME
+    set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
+    set -e PYTHONHOME
+end
+
+function pydoc
+    python -m pydoc $argv
+end
+
+if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
+    # Copy the current `fish_prompt` function as `_old_fish_prompt`.
+    functions -c fish_prompt _old_fish_prompt
+
+    function fish_prompt
+        # Save the current $status, for fish_prompts that display it.
+        set -l old_status $status
+
+        # Prompt override provided?
+        # If not, just prepend the environment name.
+        if test -n ""
+            printf '%s%s' "" (set_color normal)
+        else
+            printf '%s(%s) ' (set_color normal) (basename "$VIRTUAL_ENV")
+        end
+
+        # Restore the original $status
+        echo "exit $old_status" | source
+        _old_fish_prompt
+    end
+
+    set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
+end
diff --git a/venv1/bin/activate_this.py b/venv1/bin/activate_this.py
new file mode 100644
index 0000000..f18193b
--- /dev/null
+++ b/venv1/bin/activate_this.py
@@ -0,0 +1,34 @@
+"""By using execfile(this_file, dict(__file__=this_file)) you will
+activate this virtualenv environment.
+
+This can be used when you must use an existing Python interpreter, not
+the virtualenv bin/python
+"""
+
+try:
+    __file__
+except NameError:
+    raise AssertionError(
+        "You must run this like execfile('path/to/activate_this.py', dict(__file__='path/to/activate_this.py'))")
+import sys
+import os
+
+old_os_path = os.environ.get('PATH', '')
+os.environ['PATH'] = os.path.dirname(os.path.abspath(__file__)) + os.pathsep + old_os_path
+base = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+if sys.platform == 'win32':
+    site_packages = os.path.join(base, 'Lib', 'site-packages')
+else:
+    site_packages = os.path.join(base, 'lib', 'python%s' % sys.version[:3], 'site-packages')
+prev_sys_path = list(sys.path)
+import site
+site.addsitedir(site_packages)
+sys.real_prefix = sys.prefix
+sys.prefix = base
+# Move the added items to the front of the path:
+new_sys_path = []
+for item in list(sys.path):
+    if item not in prev_sys_path:
+        new_sys_path.append(item)
+        sys.path.remove(item)
+sys.path[:0] = new_sys_path
diff --git a/venv1/bin/easy_install b/venv1/bin/easy_install
new file mode 100755
index 0000000..b3f8304
--- /dev/null
+++ b/venv1/bin/easy_install
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/bin/easy_install-3.5 b/venv1/bin/easy_install-3.5
new file mode 100755
index 0000000..b3f8304
--- /dev/null
+++ b/venv1/bin/easy_install-3.5
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/bin/pip b/venv1/bin/pip
new file mode 100755
index 0000000..e967bc0
--- /dev/null
+++ b/venv1/bin/pip
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/bin/pip3 b/venv1/bin/pip3
new file mode 100755
index 0000000..e967bc0
--- /dev/null
+++ b/venv1/bin/pip3
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/bin/pip3.5 b/venv1/bin/pip3.5
new file mode 100755
index 0000000..e967bc0
--- /dev/null
+++ b/venv1/bin/pip3.5
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/bin/python b/venv1/bin/python
new file mode 120000
index 0000000..f549cea
--- /dev/null
+++ b/venv1/bin/python
@@ -0,0 +1 @@
+python3.5
\ No newline at end of file
diff --git a/venv1/bin/python-config b/venv1/bin/python-config
new file mode 100755
index 0000000..076e3f0
--- /dev/null
+++ b/venv1/bin/python-config
@@ -0,0 +1,78 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python
+
+import sys
+import getopt
+import sysconfig
+
+valid_opts = ['prefix', 'exec-prefix', 'includes', 'libs', 'cflags',
+              'ldflags', 'help']
+
+if sys.version_info >= (3, 2):
+    valid_opts.insert(-1, 'extension-suffix')
+    valid_opts.append('abiflags')
+if sys.version_info >= (3, 3):
+    valid_opts.append('configdir')
+
+
+def exit_with_usage(code=1):
+    sys.stderr.write("Usage: {0} [{1}]\n".format(
+        sys.argv[0], '|'.join('--'+opt for opt in valid_opts)))
+    sys.exit(code)
+
+try:
+    opts, args = getopt.getopt(sys.argv[1:], '', valid_opts)
+except getopt.error:
+    exit_with_usage()
+
+if not opts:
+    exit_with_usage()
+
+pyver = sysconfig.get_config_var('VERSION')
+getvar = sysconfig.get_config_var
+
+opt_flags = [flag for (flag, val) in opts]
+
+if '--help' in opt_flags:
+    exit_with_usage(code=0)
+
+for opt in opt_flags:
+    if opt == '--prefix':
+        print(sysconfig.get_config_var('prefix'))
+
+    elif opt == '--exec-prefix':
+        print(sysconfig.get_config_var('exec_prefix'))
+
+    elif opt in ('--includes', '--cflags'):
+        flags = ['-I' + sysconfig.get_path('include'),
+                 '-I' + sysconfig.get_path('platinclude')]
+        if opt == '--cflags':
+            flags.extend(getvar('CFLAGS').split())
+        print(' '.join(flags))
+
+    elif opt in ('--libs', '--ldflags'):
+        abiflags = getattr(sys, 'abiflags', '')
+        libs = ['-lpython' + pyver + abiflags]
+        libs += getvar('LIBS').split()
+        libs += getvar('SYSLIBS').split()
+        # add the prefix/lib/pythonX.Y/config dir, but only if there is no
+        # shared library in prefix/lib/.
+        if opt == '--ldflags':
+            if not getvar('Py_ENABLE_SHARED'):
+                libs.insert(0, '-L' + getvar('LIBPL'))
+            if not getvar('PYTHONFRAMEWORK'):
+                libs.extend(getvar('LINKFORSHARED').split())
+        print(' '.join(libs))
+
+    elif opt == '--extension-suffix':
+        ext_suffix = sysconfig.get_config_var('EXT_SUFFIX')
+        if ext_suffix is None:
+            ext_suffix = sysconfig.get_config_var('SO')
+        print(ext_suffix)
+
+    elif opt == '--abiflags':
+        if not getattr(sys, 'abiflags', None):
+            exit_with_usage()
+        print(sys.abiflags)
+
+    elif opt == '--configdir':
+        print(sysconfig.get_config_var('LIBPL'))
diff --git a/venv1/bin/python3 b/venv1/bin/python3
new file mode 120000
index 0000000..f549cea
--- /dev/null
+++ b/venv1/bin/python3
@@ -0,0 +1 @@
+python3.5
\ No newline at end of file
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diff --git a/venv1/bin/wheel b/venv1/bin/wheel
new file mode 100755
index 0000000..b263da0
--- /dev/null
+++ b/venv1/bin/wheel
@@ -0,0 +1,11 @@
+#!/home/mix/PycharmProjects/kea_for_miners/venv1/bin/python3.5
+
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from wheel.tool import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/venv1/include/python3.5m b/venv1/include/python3.5m
new file mode 120000
index 0000000..f39ee13
--- /dev/null
+++ b/venv1/include/python3.5m
@@ -0,0 +1 @@
+/usr/include/python3.5m
\ No newline at end of file
diff --git a/venv1/lib/python3.5/__future__.py b/venv1/lib/python3.5/__future__.py
new file mode 120000
index 0000000..da47060
--- /dev/null
+++ b/venv1/lib/python3.5/__future__.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/__future__.py
\ No newline at end of file
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diff --git a/venv1/lib/python3.5/_bootlocale.py b/venv1/lib/python3.5/_bootlocale.py
new file mode 120000
index 0000000..a4cde81
--- /dev/null
+++ b/venv1/lib/python3.5/_bootlocale.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/_bootlocale.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/_collections_abc.py b/venv1/lib/python3.5/_collections_abc.py
new file mode 120000
index 0000000..f225ce0
--- /dev/null
+++ b/venv1/lib/python3.5/_collections_abc.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/_collections_abc.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/_dummy_thread.py b/venv1/lib/python3.5/_dummy_thread.py
new file mode 120000
index 0000000..cd157be
--- /dev/null
+++ b/venv1/lib/python3.5/_dummy_thread.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/_dummy_thread.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/_weakrefset.py b/venv1/lib/python3.5/_weakrefset.py
new file mode 120000
index 0000000..07423d8
--- /dev/null
+++ b/venv1/lib/python3.5/_weakrefset.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/_weakrefset.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/abc.py b/venv1/lib/python3.5/abc.py
new file mode 120000
index 0000000..8b989c4
--- /dev/null
+++ b/venv1/lib/python3.5/abc.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/abc.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/base64.py b/venv1/lib/python3.5/base64.py
new file mode 120000
index 0000000..d39d46f
--- /dev/null
+++ b/venv1/lib/python3.5/base64.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/base64.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/bisect.py b/venv1/lib/python3.5/bisect.py
new file mode 120000
index 0000000..23f211b
--- /dev/null
+++ b/venv1/lib/python3.5/bisect.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/bisect.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/codecs.py b/venv1/lib/python3.5/codecs.py
new file mode 120000
index 0000000..01fd580
--- /dev/null
+++ b/venv1/lib/python3.5/codecs.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/codecs.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/collections b/venv1/lib/python3.5/collections
new file mode 120000
index 0000000..41b636d
--- /dev/null
+++ b/venv1/lib/python3.5/collections
@@ -0,0 +1 @@
+/usr/lib/python3.5/collections
\ No newline at end of file
diff --git a/venv1/lib/python3.5/config-3.5m-x86_64-linux-gnu b/venv1/lib/python3.5/config-3.5m-x86_64-linux-gnu
new file mode 120000
index 0000000..26ecfbb
--- /dev/null
+++ b/venv1/lib/python3.5/config-3.5m-x86_64-linux-gnu
@@ -0,0 +1 @@
+/usr/lib/python3.5/config-3.5m-x86_64-linux-gnu
\ No newline at end of file
diff --git a/venv1/lib/python3.5/copy.py b/venv1/lib/python3.5/copy.py
new file mode 120000
index 0000000..2ef7919
--- /dev/null
+++ b/venv1/lib/python3.5/copy.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/copy.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/copyreg.py b/venv1/lib/python3.5/copyreg.py
new file mode 120000
index 0000000..bc94f3e
--- /dev/null
+++ b/venv1/lib/python3.5/copyreg.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/copyreg.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/distutils/__init__.py b/venv1/lib/python3.5/distutils/__init__.py
new file mode 100644
index 0000000..29fc1da
--- /dev/null
+++ b/venv1/lib/python3.5/distutils/__init__.py
@@ -0,0 +1,101 @@
+import os
+import sys
+import warnings 
+import imp
+import opcode # opcode is not a virtualenv module, so we can use it to find the stdlib
+              # Important! To work on pypy, this must be a module that resides in the
+              # lib-python/modified-x.y.z directory
+
+dirname = os.path.dirname
+
+distutils_path = os.path.join(os.path.dirname(opcode.__file__), 'distutils')
+if os.path.normpath(distutils_path) == os.path.dirname(os.path.normpath(__file__)):
+    warnings.warn(
+        "The virtualenv distutils package at %s appears to be in the same location as the system distutils?")
+else:
+    __path__.insert(0, distutils_path)
+    real_distutils = imp.load_module("_virtualenv_distutils", None, distutils_path, ('', '', imp.PKG_DIRECTORY))
+    # Copy the relevant attributes
+    try:
+        __revision__ = real_distutils.__revision__
+    except AttributeError:
+        pass
+    __version__ = real_distutils.__version__
+
+from distutils import dist, sysconfig
+
+try:
+    basestring
+except NameError:
+    basestring = str
+
+## patch build_ext (distutils doesn't know how to get the libs directory
+## path on windows - it hardcodes the paths around the patched sys.prefix)
+
+if sys.platform == 'win32':
+    from distutils.command.build_ext import build_ext as old_build_ext
+    class build_ext(old_build_ext):
+        def finalize_options (self):
+            if self.library_dirs is None:
+                self.library_dirs = []
+            elif isinstance(self.library_dirs, basestring):
+                self.library_dirs = self.library_dirs.split(os.pathsep)
+            
+            self.library_dirs.insert(0, os.path.join(sys.real_prefix, "Libs"))
+            old_build_ext.finalize_options(self)
+            
+    from distutils.command import build_ext as build_ext_module 
+    build_ext_module.build_ext = build_ext
+
+## distutils.dist patches:
+
+old_find_config_files = dist.Distribution.find_config_files
+def find_config_files(self):
+    found = old_find_config_files(self)
+    system_distutils = os.path.join(distutils_path, 'distutils.cfg')
+    #if os.path.exists(system_distutils):
+    #    found.insert(0, system_distutils)
+        # What to call the per-user config file
+    if os.name == 'posix':
+        user_filename = ".pydistutils.cfg"
+    else:
+        user_filename = "pydistutils.cfg"
+    user_filename = os.path.join(sys.prefix, user_filename)
+    if os.path.isfile(user_filename):
+        for item in list(found):
+            if item.endswith('pydistutils.cfg'):
+                found.remove(item)
+        found.append(user_filename)
+    return found
+dist.Distribution.find_config_files = find_config_files
+
+## distutils.sysconfig patches:
+
+old_get_python_inc = sysconfig.get_python_inc
+def sysconfig_get_python_inc(plat_specific=0, prefix=None):
+    if prefix is None:
+        prefix = sys.real_prefix
+    return old_get_python_inc(plat_specific, prefix)
+sysconfig_get_python_inc.__doc__ = old_get_python_inc.__doc__
+sysconfig.get_python_inc = sysconfig_get_python_inc
+
+old_get_python_lib = sysconfig.get_python_lib
+def sysconfig_get_python_lib(plat_specific=0, standard_lib=0, prefix=None):
+    if standard_lib and prefix is None:
+        prefix = sys.real_prefix
+    return old_get_python_lib(plat_specific, standard_lib, prefix)
+sysconfig_get_python_lib.__doc__ = old_get_python_lib.__doc__
+sysconfig.get_python_lib = sysconfig_get_python_lib
+
+old_get_config_vars = sysconfig.get_config_vars
+def sysconfig_get_config_vars(*args):
+    real_vars = old_get_config_vars(*args)
+    if sys.platform == 'win32':
+        lib_dir = os.path.join(sys.real_prefix, "libs")
+        if isinstance(real_vars, dict) and 'LIBDIR' not in real_vars:
+            real_vars['LIBDIR'] = lib_dir # asked for all
+        elif isinstance(real_vars, list) and 'LIBDIR' in args:
+            real_vars = real_vars + [lib_dir] # asked for list
+    return real_vars
+sysconfig_get_config_vars.__doc__ = old_get_config_vars.__doc__
+sysconfig.get_config_vars = sysconfig_get_config_vars
diff --git a/venv1/lib/python3.5/distutils/distutils.cfg b/venv1/lib/python3.5/distutils/distutils.cfg
new file mode 100644
index 0000000..1af230e
--- /dev/null
+++ b/venv1/lib/python3.5/distutils/distutils.cfg
@@ -0,0 +1,6 @@
+# This is a config file local to this virtualenv installation
+# You may include options that will be used by all distutils commands,
+# and by easy_install.  For instance:
+#
+#   [easy_install]
+#   find_links = http://mylocalsite
diff --git a/venv1/lib/python3.5/encodings b/venv1/lib/python3.5/encodings
new file mode 120000
index 0000000..4d0eb3d
--- /dev/null
+++ b/venv1/lib/python3.5/encodings
@@ -0,0 +1 @@
+/usr/lib/python3.5/encodings
\ No newline at end of file
diff --git a/venv1/lib/python3.5/fnmatch.py b/venv1/lib/python3.5/fnmatch.py
new file mode 120000
index 0000000..0640e6d
--- /dev/null
+++ b/venv1/lib/python3.5/fnmatch.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/fnmatch.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/functools.py b/venv1/lib/python3.5/functools.py
new file mode 120000
index 0000000..ce91539
--- /dev/null
+++ b/venv1/lib/python3.5/functools.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/functools.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/genericpath.py b/venv1/lib/python3.5/genericpath.py
new file mode 120000
index 0000000..c7ad327
--- /dev/null
+++ b/venv1/lib/python3.5/genericpath.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/genericpath.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/hashlib.py b/venv1/lib/python3.5/hashlib.py
new file mode 120000
index 0000000..c206c58
--- /dev/null
+++ b/venv1/lib/python3.5/hashlib.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/hashlib.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/heapq.py b/venv1/lib/python3.5/heapq.py
new file mode 120000
index 0000000..a09bfc9
--- /dev/null
+++ b/venv1/lib/python3.5/heapq.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/heapq.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/hmac.py b/venv1/lib/python3.5/hmac.py
new file mode 120000
index 0000000..ca2f8eb
--- /dev/null
+++ b/venv1/lib/python3.5/hmac.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/hmac.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/imp.py b/venv1/lib/python3.5/imp.py
new file mode 120000
index 0000000..531c006
--- /dev/null
+++ b/venv1/lib/python3.5/imp.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/imp.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/importlib b/venv1/lib/python3.5/importlib
new file mode 120000
index 0000000..628f638
--- /dev/null
+++ b/venv1/lib/python3.5/importlib
@@ -0,0 +1 @@
+/usr/lib/python3.5/importlib
\ No newline at end of file
diff --git a/venv1/lib/python3.5/io.py b/venv1/lib/python3.5/io.py
new file mode 120000
index 0000000..8b8d7e7
--- /dev/null
+++ b/venv1/lib/python3.5/io.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/io.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/keyword.py b/venv1/lib/python3.5/keyword.py
new file mode 120000
index 0000000..c79b39b
--- /dev/null
+++ b/venv1/lib/python3.5/keyword.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/keyword.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/lib-dynload b/venv1/lib/python3.5/lib-dynload
new file mode 120000
index 0000000..031c0a8
--- /dev/null
+++ b/venv1/lib/python3.5/lib-dynload
@@ -0,0 +1 @@
+/usr/lib/python3.5/lib-dynload
\ No newline at end of file
diff --git a/venv1/lib/python3.5/linecache.py b/venv1/lib/python3.5/linecache.py
new file mode 120000
index 0000000..0d9660b
--- /dev/null
+++ b/venv1/lib/python3.5/linecache.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/linecache.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/locale.py b/venv1/lib/python3.5/locale.py
new file mode 120000
index 0000000..56a6ea8
--- /dev/null
+++ b/venv1/lib/python3.5/locale.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/locale.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/ntpath.py b/venv1/lib/python3.5/ntpath.py
new file mode 120000
index 0000000..e3d98e5
--- /dev/null
+++ b/venv1/lib/python3.5/ntpath.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/ntpath.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/operator.py b/venv1/lib/python3.5/operator.py
new file mode 120000
index 0000000..a53343b
--- /dev/null
+++ b/venv1/lib/python3.5/operator.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/operator.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/orig-prefix.txt b/venv1/lib/python3.5/orig-prefix.txt
new file mode 100644
index 0000000..e25db58
--- /dev/null
+++ b/venv1/lib/python3.5/orig-prefix.txt
@@ -0,0 +1 @@
+/usr
\ No newline at end of file
diff --git a/venv1/lib/python3.5/os.py b/venv1/lib/python3.5/os.py
new file mode 120000
index 0000000..e121158
--- /dev/null
+++ b/venv1/lib/python3.5/os.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/os.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/plat-x86_64-linux-gnu b/venv1/lib/python3.5/plat-x86_64-linux-gnu
new file mode 120000
index 0000000..df3ee0c
--- /dev/null
+++ b/venv1/lib/python3.5/plat-x86_64-linux-gnu
@@ -0,0 +1 @@
+/usr/lib/python3.5/plat-x86_64-linux-gnu
\ No newline at end of file
diff --git a/venv1/lib/python3.5/posixpath.py b/venv1/lib/python3.5/posixpath.py
new file mode 120000
index 0000000..3538be0
--- /dev/null
+++ b/venv1/lib/python3.5/posixpath.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/posixpath.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/random.py b/venv1/lib/python3.5/random.py
new file mode 120000
index 0000000..ee9e632
--- /dev/null
+++ b/venv1/lib/python3.5/random.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/random.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/re.py b/venv1/lib/python3.5/re.py
new file mode 120000
index 0000000..b661410
--- /dev/null
+++ b/venv1/lib/python3.5/re.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/re.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/reprlib.py b/venv1/lib/python3.5/reprlib.py
new file mode 120000
index 0000000..51c9f06
--- /dev/null
+++ b/venv1/lib/python3.5/reprlib.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/reprlib.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/rlcompleter.py b/venv1/lib/python3.5/rlcompleter.py
new file mode 120000
index 0000000..b04cfbb
--- /dev/null
+++ b/venv1/lib/python3.5/rlcompleter.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/rlcompleter.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/shutil.py b/venv1/lib/python3.5/shutil.py
new file mode 120000
index 0000000..87eaeb6
--- /dev/null
+++ b/venv1/lib/python3.5/shutil.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/shutil.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/site-packages/__pycache__/easy_install.cpython-35.pyc b/venv1/lib/python3.5/site-packages/__pycache__/easy_install.cpython-35.pyc
new file mode 100644
index 0000000..1f3a258
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/__pycache__/easy_install.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/easy_install.py b/venv1/lib/python3.5/site-packages/easy_install.py
new file mode 100644
index 0000000..d87e984
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/easy_install.py
@@ -0,0 +1,5 @@
+"""Run the EasyInstall command"""
+
+if __name__ == '__main__':
+    from setuptools.command.easy_install import main
+    main()
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/DESCRIPTION.rst b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..8ef94c4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/DESCRIPTION.rst
@@ -0,0 +1,39 @@
+pip
+===
+
+The `PyPA recommended
+<https://packaging.python.org/en/latest/current/>`_
+tool for installing Python packages.
+
+* `Installation <https://pip.pypa.io/en/stable/installing.html>`_
+* `Documentation <https://pip.pypa.io/>`_
+* `Changelog <https://pip.pypa.io/en/stable/news.html>`_
+* `Github Page <https://github.com/pypa/pip>`_
+* `Issue Tracking <https://github.com/pypa/pip/issues>`_
+* `User mailing list <http://groups.google.com/group/python-virtualenv>`_
+* `Dev mailing list <http://groups.google.com/group/pypa-dev>`_
+* User IRC: #pypa on Freenode.
+* Dev IRC: #pypa-dev on Freenode.
+
+
+.. image:: https://img.shields.io/pypi/v/pip.svg
+   :target: https://pypi.python.org/pypi/pip
+
+.. image:: https://img.shields.io/travis/pypa/pip/master.svg
+   :target: http://travis-ci.org/pypa/pip
+
+.. image:: https://img.shields.io/appveyor/ci/pypa/pip.svg
+   :target: https://ci.appveyor.com/project/pypa/pip/history
+
+.. image:: https://readthedocs.org/projects/pip/badge/?version=stable
+   :target: https://pip.pypa.io/en/stable
+
+Code of Conduct
+---------------
+
+Everyone interacting in the pip project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/INSTALLER b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/METADATA b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/METADATA
new file mode 100644
index 0000000..600a905
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/METADATA
@@ -0,0 +1,69 @@
+Metadata-Version: 2.0
+Name: pip
+Version: 9.0.1
+Summary: The PyPA recommended tool for installing Python packages.
+Home-page: https://pip.pypa.io/
+Author: The pip developers
+Author-email: python-virtualenv@groups.google.com
+License: MIT
+Keywords: easy_install distutils setuptools egg virtualenv
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Topic :: Software Development :: Build Tools
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.6
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Requires-Python: >=2.6,!=3.0.*,!=3.1.*,!=3.2.*
+Provides-Extra: testing
+Requires-Dist: mock; extra == 'testing'
+Requires-Dist: pretend; extra == 'testing'
+Requires-Dist: pytest; extra == 'testing'
+Requires-Dist: scripttest (>=1.3); extra == 'testing'
+Requires-Dist: virtualenv (>=1.10); extra == 'testing'
+
+pip
+===
+
+The `PyPA recommended
+<https://packaging.python.org/en/latest/current/>`_
+tool for installing Python packages.
+
+* `Installation <https://pip.pypa.io/en/stable/installing.html>`_
+* `Documentation <https://pip.pypa.io/>`_
+* `Changelog <https://pip.pypa.io/en/stable/news.html>`_
+* `Github Page <https://github.com/pypa/pip>`_
+* `Issue Tracking <https://github.com/pypa/pip/issues>`_
+* `User mailing list <http://groups.google.com/group/python-virtualenv>`_
+* `Dev mailing list <http://groups.google.com/group/pypa-dev>`_
+* User IRC: #pypa on Freenode.
+* Dev IRC: #pypa-dev on Freenode.
+
+
+.. image:: https://img.shields.io/pypi/v/pip.svg
+   :target: https://pypi.python.org/pypi/pip
+
+.. image:: https://img.shields.io/travis/pypa/pip/master.svg
+   :target: http://travis-ci.org/pypa/pip
+
+.. image:: https://img.shields.io/appveyor/ci/pypa/pip.svg
+   :target: https://ci.appveyor.com/project/pypa/pip/history
+
+.. image:: https://readthedocs.org/projects/pip/badge/?version=stable
+   :target: https://pip.pypa.io/en/stable
+
+Code of Conduct
+---------------
+
+Everyone interacting in the pip project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/RECORD b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/RECORD
new file mode 100644
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--- /dev/null
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+Tag: py3-none-any
+
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/entry_points.txt b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/entry_points.txt
new file mode 100644
index 0000000..c02a8d5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/entry_points.txt
@@ -0,0 +1,5 @@
+[console_scripts]
+pip = pip:main
+pip3 = pip:main
+pip3.5 = pip:main
+
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/metadata.json b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/metadata.json
new file mode 100644
index 0000000..9eae02c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Topic :: Software Development :: Build Tools", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.6", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: Implementation :: PyPy"], "extensions": {"python.commands": {"wrap_console": {"pip": "pip:main", "pip3": "pip:main", "pip3.5": "pip:main"}}, "python.details": {"contacts": [{"email": "python-virtualenv@groups.google.com", "name": "The pip developers", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst"}, "project_urls": {"Home": "https://pip.pypa.io/"}}, "python.exports": {"console_scripts": {"pip": "pip:main", "pip3": "pip:main", "pip3.5": "pip:main"}}}, "extras": ["testing"], "generator": "bdist_wheel (0.29.0)", "keywords": ["easy_install", "distutils", "setuptools", "egg", "virtualenv"], "license": "MIT", "metadata_version": "2.0", "name": "pip", "requires_python": ">=2.6,!=3.0.*,!=3.1.*,!=3.2.*", "run_requires": [{"extra": "testing", "requires": ["mock", "pretend", "pytest", "scripttest (>=1.3)", "virtualenv (>=1.10)"]}], "summary": "The PyPA recommended tool for installing Python packages.", "test_requires": [{"requires": ["mock", "pretend", "pytest", "scripttest (>=1.3)", "virtualenv (>=1.10)"]}], "version": "9.0.1"}
\ No newline at end of file
diff --git a/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/top_level.txt b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/top_level.txt
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip-9.0.1.dist-info/top_level.txt
@@ -0,0 +1 @@
+pip
diff --git a/venv1/lib/python3.5/site-packages/pip/__init__.py b/venv1/lib/python3.5/site-packages/pip/__init__.py
new file mode 100644
index 0000000..9c1d8f9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/__init__.py
@@ -0,0 +1,331 @@
+#!/usr/bin/env python
+from __future__ import absolute_import
+
+import locale
+import logging
+import os
+import optparse
+import warnings
+
+import sys
+import re
+
+# 2016-06-17 barry@debian.org: urllib3 1.14 added optional support for socks,
+# but if invoked (i.e. imported), it will issue a warning to stderr if socks
+# isn't available.  requests unconditionally imports urllib3's socks contrib
+# module, triggering this warning.  The warning breaks DEP-8 tests (because of
+# the stderr output) and is just plain annoying in normal usage.  I don't want
+# to add socks as yet another dependency for pip, nor do I want to allow-stder
+# in the DEP-8 tests, so just suppress the warning.  pdb tells me this has to
+# be done before the import of pip.vcs.
+from pip._vendor.requests.packages.urllib3.exceptions import DependencyWarning
+warnings.filterwarnings("ignore", category=DependencyWarning)  # noqa
+
+
+from pip.exceptions import InstallationError, CommandError, PipError
+from pip.utils import get_installed_distributions, get_prog
+from pip.utils import deprecation, dist_is_editable
+from pip.vcs import git, mercurial, subversion, bazaar  # noqa
+from pip.baseparser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip.commands import get_summaries, get_similar_commands
+from pip.commands import commands_dict
+from pip._vendor.requests.packages.urllib3.exceptions import (
+    InsecureRequestWarning,
+)
+
+
+# assignment for flake8 to be happy
+
+# This fixes a peculiarity when importing via __import__ - as we are
+# initialising the pip module, "from pip import cmdoptions" is recursive
+# and appears not to work properly in that situation.
+import pip.cmdoptions
+cmdoptions = pip.cmdoptions
+
+# The version as used in the setup.py and the docs conf.py
+__version__ = "9.0.1"
+
+
+logger = logging.getLogger(__name__)
+
+# Hide the InsecureRequestWarning from urllib3
+warnings.filterwarnings("ignore", category=InsecureRequestWarning)
+
+
+def autocomplete():
+    """Command and option completion for the main option parser (and options)
+    and its subcommands (and options).
+
+    Enable by sourcing one of the completion shell scripts (bash, zsh or fish).
+    """
+    # Don't complete if user hasn't sourced bash_completion file.
+    if 'PIP_AUTO_COMPLETE' not in os.environ:
+        return
+    cwords = os.environ['COMP_WORDS'].split()[1:]
+    cword = int(os.environ['COMP_CWORD'])
+    try:
+        current = cwords[cword - 1]
+    except IndexError:
+        current = ''
+
+    subcommands = [cmd for cmd, summary in get_summaries()]
+    options = []
+    # subcommand
+    try:
+        subcommand_name = [w for w in cwords if w in subcommands][0]
+    except IndexError:
+        subcommand_name = None
+
+    parser = create_main_parser()
+    # subcommand options
+    if subcommand_name:
+        # special case: 'help' subcommand has no options
+        if subcommand_name == 'help':
+            sys.exit(1)
+        # special case: list locally installed dists for uninstall command
+        if subcommand_name == 'uninstall' and not current.startswith('-'):
+            installed = []
+            lc = current.lower()
+            for dist in get_installed_distributions(local_only=True):
+                if dist.key.startswith(lc) and dist.key not in cwords[1:]:
+                    installed.append(dist.key)
+            # if there are no dists installed, fall back to option completion
+            if installed:
+                for dist in installed:
+                    print(dist)
+                sys.exit(1)
+
+        subcommand = commands_dict[subcommand_name]()
+        options += [(opt.get_opt_string(), opt.nargs)
+                    for opt in subcommand.parser.option_list_all
+                    if opt.help != optparse.SUPPRESS_HELP]
+
+        # filter out previously specified options from available options
+        prev_opts = [x.split('=')[0] for x in cwords[1:cword - 1]]
+        options = [(x, v) for (x, v) in options if x not in prev_opts]
+        # filter options by current input
+        options = [(k, v) for k, v in options if k.startswith(current)]
+        for option in options:
+            opt_label = option[0]
+            # append '=' to options which require args
+            if option[1]:
+                opt_label += '='
+            print(opt_label)
+    else:
+        # show main parser options only when necessary
+        if current.startswith('-') or current.startswith('--'):
+            opts = [i.option_list for i in parser.option_groups]
+            opts.append(parser.option_list)
+            opts = (o for it in opts for o in it)
+
+            subcommands += [i.get_opt_string() for i in opts
+                            if i.help != optparse.SUPPRESS_HELP]
+
+        print(' '.join([x for x in subcommands if x.startswith(current)]))
+    sys.exit(1)
+
+
+def create_main_parser():
+    parser_kw = {
+        'usage': '\n%prog <command> [options]',
+        'add_help_option': False,
+        'formatter': UpdatingDefaultsHelpFormatter(),
+        'name': 'global',
+        'prog': get_prog(),
+    }
+
+    parser = ConfigOptionParser(**parser_kw)
+    parser.disable_interspersed_args()
+
+    pip_pkg_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    parser.version = 'pip %s from %s (python %s)' % (
+        __version__, pip_pkg_dir, sys.version[:3])
+
+    # add the general options
+    gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
+    parser.add_option_group(gen_opts)
+
+    parser.main = True  # so the help formatter knows
+
+    # create command listing for description
+    command_summaries = get_summaries()
+    description = [''] + ['%-27s %s' % (i, j) for i, j in command_summaries]
+    parser.description = '\n'.join(description)
+
+    return parser
+
+
+def parseopts(args):
+    parser = create_main_parser()
+
+    # Note: parser calls disable_interspersed_args(), so the result of this
+    # call is to split the initial args into the general options before the
+    # subcommand and everything else.
+    # For example:
+    #  args: ['--timeout=5', 'install', '--user', 'INITools']
+    #  general_options: ['--timeout==5']
+    #  args_else: ['install', '--user', 'INITools']
+    general_options, args_else = parser.parse_args(args)
+
+    # --version
+    if general_options.version:
+        sys.stdout.write(parser.version)
+        sys.stdout.write(os.linesep)
+        sys.exit()
+
+    # pip || pip help -> print_help()
+    if not args_else or (args_else[0] == 'help' and len(args_else) == 1):
+        parser.print_help()
+        sys.exit()
+
+    # the subcommand name
+    cmd_name = args_else[0]
+
+    if cmd_name not in commands_dict:
+        guess = get_similar_commands(cmd_name)
+
+        msg = ['unknown command "%s"' % cmd_name]
+        if guess:
+            msg.append('maybe you meant "%s"' % guess)
+
+        raise CommandError(' - '.join(msg))
+
+    # all the args without the subcommand
+    cmd_args = args[:]
+    cmd_args.remove(cmd_name)
+
+    return cmd_name, cmd_args
+
+
+def check_isolated(args):
+    isolated = False
+
+    if "--isolated" in args:
+        isolated = True
+
+    return isolated
+
+
+def main(args=None):
+    if args is None:
+        args = sys.argv[1:]
+
+    # Configure our deprecation warnings to be sent through loggers
+    deprecation.install_warning_logger()
+
+    autocomplete()
+
+    try:
+        cmd_name, cmd_args = parseopts(args)
+    except PipError as exc:
+        sys.stderr.write("ERROR: %s" % exc)
+        sys.stderr.write(os.linesep)
+        sys.exit(1)
+
+    # Needed for locale.getpreferredencoding(False) to work
+    # in pip.utils.encoding.auto_decode
+    try:
+        locale.setlocale(locale.LC_ALL, '')
+    except locale.Error as e:
+        # setlocale can apparently crash if locale are uninitialized
+        logger.debug("Ignoring error %s when setting locale", e)
+    command = commands_dict[cmd_name](isolated=check_isolated(cmd_args))
+    return command.main(cmd_args)
+
+
+# ###########################################################
+# # Writing freeze files
+
+class FrozenRequirement(object):
+
+    def __init__(self, name, req, editable, comments=()):
+        self.name = name
+        self.req = req
+        self.editable = editable
+        self.comments = comments
+
+    _rev_re = re.compile(r'-r(\d+)$')
+    _date_re = re.compile(r'-(20\d\d\d\d\d\d)$')
+
+    @classmethod
+    def from_dist(cls, dist, dependency_links):
+        location = os.path.normcase(os.path.abspath(dist.location))
+        comments = []
+        from pip.vcs import vcs, get_src_requirement
+        if dist_is_editable(dist) and vcs.get_backend_name(location):
+            editable = True
+            try:
+                req = get_src_requirement(dist, location)
+            except InstallationError as exc:
+                logger.warning(
+                    "Error when trying to get requirement for VCS system %s, "
+                    "falling back to uneditable format", exc
+                )
+                req = None
+            if req is None:
+                logger.warning(
+                    'Could not determine repository location of %s', location
+                )
+                comments.append(
+                    '## !! Could not determine repository location'
+                )
+                req = dist.as_requirement()
+                editable = False
+        else:
+            editable = False
+            req = dist.as_requirement()
+            specs = req.specs
+            assert len(specs) == 1 and specs[0][0] in ["==", "==="], \
+                'Expected 1 spec with == or ===; specs = %r; dist = %r' % \
+                (specs, dist)
+            version = specs[0][1]
+            ver_match = cls._rev_re.search(version)
+            date_match = cls._date_re.search(version)
+            if ver_match or date_match:
+                svn_backend = vcs.get_backend('svn')
+                if svn_backend:
+                    svn_location = svn_backend().get_location(
+                        dist,
+                        dependency_links,
+                    )
+                if not svn_location:
+                    logger.warning(
+                        'Warning: cannot find svn location for %s', req)
+                    comments.append(
+                        '## FIXME: could not find svn URL in dependency_links '
+                        'for this package:'
+                    )
+                else:
+                    comments.append(
+                        '# Installing as editable to satisfy requirement %s:' %
+                        req
+                    )
+                    if ver_match:
+                        rev = ver_match.group(1)
+                    else:
+                        rev = '{%s}' % date_match.group(1)
+                    editable = True
+                    req = '%s@%s#egg=%s' % (
+                        svn_location,
+                        rev,
+                        cls.egg_name(dist)
+                    )
+        return cls(dist.project_name, req, editable, comments)
+
+    @staticmethod
+    def egg_name(dist):
+        name = dist.egg_name()
+        match = re.search(r'-py\d\.\d$', name)
+        if match:
+            name = name[:match.start()]
+        return name
+
+    def __str__(self):
+        req = self.req
+        if self.editable:
+            req = '-e %s' % req
+        return '\n'.join(list(self.comments) + [str(req)]) + '\n'
+
+
+if __name__ == '__main__':
+    sys.exit(main())
diff --git a/venv1/lib/python3.5/site-packages/pip/__main__.py b/venv1/lib/python3.5/site-packages/pip/__main__.py
new file mode 100644
index 0000000..5556539
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/__main__.py
@@ -0,0 +1,19 @@
+from __future__ import absolute_import
+
+import os
+import sys
+
+# If we are running from a wheel, add the wheel to sys.path
+# This allows the usage python pip-*.whl/pip install pip-*.whl
+if __package__ == '':
+    # __file__ is pip-*.whl/pip/__main__.py
+    # first dirname call strips of '/__main__.py', second strips off '/pip'
+    # Resulting path is the name of the wheel itself
+    # Add that to sys.path so we can import pip
+    path = os.path.dirname(os.path.dirname(__file__))
+    sys.path.insert(0, path)
+
+import pip  # noqa
+
+if __name__ == '__main__':
+    sys.exit(pip.main())
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/__init__.py
new file mode 100644
index 0000000..bee5f5e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/__init__.py
@@ -0,0 +1,107 @@
+"""
+pip._vendor is for vendoring dependencies of pip to prevent needing pip to
+depend on something external.
+
+Files inside of pip._vendor should be considered immutable and should only be
+updated to versions from upstream.
+"""
+from __future__ import absolute_import
+
+import glob
+import os.path
+import sys
+
+# Downstream redistributors which have debundled our dependencies should also
+# patch this value to be true. This will trigger the additional patching
+# to cause things like "six" to be available as pip.
+DEBUNDLED = False
+
+# By default, look in this directory for a bunch of .whl files which we will
+# add to the beginning of sys.path before attempting to import anything. This
+# is done to support downstream re-distributors like Debian and Fedora who
+# wish to create their own Wheels for our dependencies to aid in debundling.
+WHEEL_DIR = os.path.abspath(os.path.dirname(__file__))
+
+
+# Define a small helper function to alias our vendored modules to the real ones
+# if the vendored ones do not exist. This idea of this was taken from
+# https://github.com/kennethreitz/requests/pull/2567.
+def vendored(modulename):
+    vendored_name = "{0}.{1}".format(__name__, modulename)
+
+    try:
+        __import__(vendored_name, globals(), locals(), level=0)
+    except ImportError:
+        try:
+            __import__(modulename, globals(), locals(), level=0)
+        except ImportError:
+            # We can just silently allow import failures to pass here. If we
+            # got to this point it means that ``import pip._vendor.whatever``
+            # failed and so did ``import whatever``. Since we're importing this
+            # upfront in an attempt to alias imports, not erroring here will
+            # just mean we get a regular import error whenever pip *actually*
+            # tries to import one of these modules to use it, which actually
+            # gives us a better error message than we would have otherwise
+            # gotten.
+            pass
+        else:
+            sys.modules[vendored_name] = sys.modules[modulename]
+            base, head = vendored_name.rsplit(".", 1)
+            setattr(sys.modules[base], head, sys.modules[modulename])
+
+
+# If we're operating in a debundled setup, then we want to go ahead and trigger
+# the aliasing of our vendored libraries as well as looking for wheels to add
+# to our sys.path. This will cause all of this code to be a no-op typically
+# however downstream redistributors can enable it in a consistent way across
+# all platforms.
+if DEBUNDLED:
+    # Actually look inside of WHEEL_DIR to find .whl files and add them to the
+    # front of our sys.path.
+    sys.path[:] = glob.glob(os.path.join(WHEEL_DIR, "*.whl")) + sys.path
+
+    # Actually alias all of our vendored dependencies.
+    vendored("cachecontrol")
+    vendored("colorama")
+    vendored("distlib")
+    vendored("distro")
+    vendored("html5lib")
+    vendored("lockfile")
+    vendored("six")
+    vendored("six.moves")
+    vendored("six.moves.urllib")
+    vendored("packaging")
+    vendored("packaging.version")
+    vendored("packaging.specifiers")
+    vendored("pkg_resources")
+    vendored("progress")
+    vendored("retrying")
+    vendored("requests")
+    vendored("requests.packages")
+    vendored("requests.packages.urllib3")
+    vendored("requests.packages.urllib3._collections")
+    vendored("requests.packages.urllib3.connection")
+    vendored("requests.packages.urllib3.connectionpool")
+    vendored("requests.packages.urllib3.contrib")
+    vendored("requests.packages.urllib3.contrib.ntlmpool")
+    vendored("requests.packages.urllib3.contrib.pyopenssl")
+    vendored("requests.packages.urllib3.exceptions")
+    vendored("requests.packages.urllib3.fields")
+    vendored("requests.packages.urllib3.filepost")
+    vendored("requests.packages.urllib3.packages")
+    vendored("requests.packages.urllib3.packages.ordered_dict")
+    vendored("requests.packages.urllib3.packages.six")
+    vendored("requests.packages.urllib3.packages.ssl_match_hostname")
+    vendored("requests.packages.urllib3.packages.ssl_match_hostname."
+             "_implementation")
+    vendored("requests.packages.urllib3.poolmanager")
+    vendored("requests.packages.urllib3.request")
+    vendored("requests.packages.urllib3.response")
+    vendored("requests.packages.urllib3.util")
+    vendored("requests.packages.urllib3.util.connection")
+    vendored("requests.packages.urllib3.util.request")
+    vendored("requests.packages.urllib3.util.response")
+    vendored("requests.packages.urllib3.util.retry")
+    vendored("requests.packages.urllib3.util.ssl_")
+    vendored("requests.packages.urllib3.util.timeout")
+    vendored("requests.packages.urllib3.util.url")
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@@ -0,0 +1,552 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2005-2010 ActiveState Software Inc.
+# Copyright (c) 2013 Eddy Petrișor
+
+"""Utilities for determining application-specific dirs.
+
+See <http://github.com/ActiveState/appdirs> for details and usage.
+"""
+# Dev Notes:
+# - MSDN on where to store app data files:
+#   http://support.microsoft.com/default.aspx?scid=kb;en-us;310294#XSLTH3194121123120121120120
+# - macOS: http://developer.apple.com/documentation/MacOSX/Conceptual/BPFileSystem/index.html
+# - XDG spec for Un*x: http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+__version_info__ = (1, 4, 0)
+__version__ = '.'.join(map(str, __version_info__))
+
+
+import sys
+import os
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    unicode = str
+
+if sys.platform.startswith('java'):
+    import platform
+    os_name = platform.java_ver()[3][0]
+    if os_name.startswith('Windows'): # "Windows XP", "Windows 7", etc.
+        system = 'win32'
+    elif os_name.startswith('Mac'): # "macOS", etc.
+        system = 'darwin'
+    else: # "Linux", "SunOS", "FreeBSD", etc.
+        # Setting this to "linux2" is not ideal, but only Windows or Mac
+        # are actually checked for and the rest of the module expects
+        # *sys.platform* style strings.
+        system = 'linux2'
+else:
+    system = sys.platform
+
+
+
+def user_data_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\Application Data\<AppAuthor>\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>
+        Win 7  (not roaming):   C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>
+        Win 7  (roaming):       C:\Users\<username>\AppData\Roaming\<AppAuthor>\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.normpath(_get_win_folder(const))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Application Support/')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_DATA_HOME', os.path.expanduser("~/.local/share"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_data_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of data dirs should be
+            returned. By default, the first item from XDG_DATA_DIRS is
+            returned, or '/usr/local/share/<AppName>',
+            if XDG_DATA_DIRS is not set
+
+    Typical user data directories are:
+        macOS:      /Library/Application Support/<AppName>
+        Unix:       /usr/local/share/<AppName> or /usr/share/<AppName>
+        Win XP:     C:\Documents and Settings\All Users\Application Data\<AppAuthor>\<AppName>
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+        Win 7:      C:\ProgramData\<AppAuthor>\<AppName>   # Hidden, but writeable on Win 7.
+
+    For Unix, this is using the $XDG_DATA_DIRS[0] default.
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('/Library/Application Support')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        # XDG default for $XDG_DATA_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_DATA_DIRS',
+                         os.pathsep.join(['/usr/local/share', '/usr/share']))
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+        return path
+
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_config_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  same as user_data_dir
+        Unix:                   ~/.config/<AppName>     # or in $XDG_CONFIG_HOME, if defined
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by deafult "~/.config/<AppName>".
+    """
+    if system in ["win32", "darwin"]:
+        path = user_data_dir(appname, appauthor, None, roaming)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', os.path.expanduser("~/.config"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of config dirs should be
+            returned. By default, the first item from XDG_CONFIG_DIRS is
+            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set
+
+    Typical user data directories are:
+        macOS:      same as site_data_dir
+        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
+                    $XDG_CONFIG_DIRS
+        Win *:      same as site_data_dir
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+
+    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system in ["win32", "darwin"]:
+        path = site_data_dir(appname, appauthor)
+        if appname and version:
+            path = os.path.join(path, version)
+    else:
+        # XDG default for $XDG_CONFIG_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+    return path
+
+
+def user_cache_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Cache" to the base app data dir for Windows. See
+            discussion below.
+
+    Typical user cache directories are:
+        macOS:      ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Cache
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go in
+    the `CSIDL_LOCAL_APPDATA` directory. This is identical to the non-roaming
+    app data dir (the default returned by `user_data_dir` above). Apps typically
+    put cache data somewhere *under* the given dir here. Some examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+            if opinion:
+                path = os.path.join(path, "Cache")
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Caches')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_CACHE_HOME', os.path.expanduser('~/.cache'))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_log_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific log dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Logs" to the base app data dir for Windows, and "log" to the
+            base cache dir for Unix. See discussion below.
+
+    Typical user cache directories are:
+        macOS:      ~/Library/Logs/<AppName>
+        Unix:       ~/.cache/<AppName>/log  # or under $XDG_CACHE_HOME if defined
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Logs
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Logs
+
+    On Windows the only suggestion in the MSDN docs is that local settings
+    go in the `CSIDL_LOCAL_APPDATA` directory. (Note: I'm interested in
+    examples of what some windows apps use for a logs dir.)
+
+    OPINION: This function appends "Logs" to the `CSIDL_LOCAL_APPDATA`
+    value for Windows and appends "log" to the user cache dir for Unix.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "darwin":
+        path = os.path.join(
+            os.path.expanduser('~/Library/Logs'),
+            appname)
+    elif system == "win32":
+        path = user_data_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "Logs")
+    else:
+        path = user_cache_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "log")
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+class AppDirs(object):
+    """Convenience wrapper for getting application dirs."""
+    def __init__(self, appname, appauthor=None, version=None, roaming=False,
+                 multipath=False):
+        self.appname = appname
+        self.appauthor = appauthor
+        self.version = version
+        self.roaming = roaming
+        self.multipath = multipath
+
+    @property
+    def user_data_dir(self):
+        return user_data_dir(self.appname, self.appauthor,
+                             version=self.version, roaming=self.roaming)
+
+    @property
+    def site_data_dir(self):
+        return site_data_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_config_dir(self):
+        return user_config_dir(self.appname, self.appauthor,
+                               version=self.version, roaming=self.roaming)
+
+    @property
+    def site_config_dir(self):
+        return site_config_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_cache_dir(self):
+        return user_cache_dir(self.appname, self.appauthor,
+                              version=self.version)
+
+    @property
+    def user_log_dir(self):
+        return user_log_dir(self.appname, self.appauthor,
+                            version=self.version)
+
+
+#---- internal support stuff
+
+def _get_win_folder_from_registry(csidl_name):
+    """This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    dir, type = _winreg.QueryValueEx(key, shell_folder_name)
+    return dir
+
+
+def _get_win_folder_with_pywin32(csidl_name):
+    from win32com.shell import shellcon, shell
+    dir = shell.SHGetFolderPath(0, getattr(shellcon, csidl_name), 0, 0)
+    # Try to make this a unicode path because SHGetFolderPath does
+    # not return unicode strings when there is unicode data in the
+    # path.
+    try:
+        dir = unicode(dir)
+
+        # Downgrade to short path name if have highbit chars. See
+        # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+        has_high_char = False
+        for c in dir:
+            if ord(c) > 255:
+                has_high_char = True
+                break
+        if has_high_char:
+            try:
+                import win32api
+                dir = win32api.GetShortPathName(dir)
+            except ImportError:
+                pass
+    except UnicodeError:
+        pass
+    return dir
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    import ctypes
+
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+def _get_win_folder_with_jna(csidl_name):
+    import array
+    from com.sun import jna
+    from com.sun.jna.platform import win32
+
+    buf_size = win32.WinDef.MAX_PATH * 2
+    buf = array.zeros('c', buf_size)
+    shell = win32.Shell32.INSTANCE
+    shell.SHGetFolderPath(None, getattr(win32.ShlObj, csidl_name), None, win32.ShlObj.SHGFP_TYPE_CURRENT, buf)
+    dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in dir:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf = array.zeros('c', buf_size)
+        kernel = win32.Kernel32.INSTANCE
+        if kernal.GetShortPathName(dir, buf, buf_size):
+            dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    return dir
+
+if system == "win32":
+    try:
+        import win32com.shell
+        _get_win_folder = _get_win_folder_with_pywin32
+    except ImportError:
+        try:
+            from ctypes import windll
+            _get_win_folder = _get_win_folder_with_ctypes
+        except ImportError:
+            try:
+                import com.sun.jna
+                _get_win_folder = _get_win_folder_with_jna
+            except ImportError:
+                _get_win_folder = _get_win_folder_from_registry
+
+
+#---- self test code
+
+if __name__ == "__main__":
+    appname = "MyApp"
+    appauthor = "MyCompany"
+
+    props = ("user_data_dir", "site_data_dir",
+             "user_config_dir", "site_config_dir",
+             "user_cache_dir", "user_log_dir")
+
+    print("-- app dirs (with optional 'version')")
+    dirs = AppDirs(appname, appauthor, version="1.0")
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'version')")
+    dirs = AppDirs(appname, appauthor)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'appauthor')")
+    dirs = AppDirs(appname)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (with disabled 'appauthor')")
+    dirs = AppDirs(appname, appauthor=False)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/__init__.py
new file mode 100644
index 0000000..ec9da2e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/__init__.py
@@ -0,0 +1,11 @@
+"""CacheControl import Interface.
+
+Make it easy to import from cachecontrol without long namespaces.
+"""
+__author__ = 'Eric Larson'
+__email__ = 'eric@ionrock.org'
+__version__ = '0.11.7'
+
+from .wrapper import CacheControl
+from .adapter import CacheControlAdapter
+from .controller import CacheController
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/_cmd.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/_cmd.py
new file mode 100644
index 0000000..afdcc88
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/_cmd.py
@@ -0,0 +1,60 @@
+import logging
+
+from pip._vendor import requests
+
+from pip._vendor.cachecontrol.adapter import CacheControlAdapter
+from pip._vendor.cachecontrol.cache import DictCache
+from pip._vendor.cachecontrol.controller import logger
+
+from argparse import ArgumentParser
+
+
+def setup_logging():
+    logger.setLevel(logging.DEBUG)
+    handler = logging.StreamHandler()
+    logger.addHandler(handler)
+
+
+def get_session():
+    adapter = CacheControlAdapter(
+        DictCache(),
+        cache_etags=True,
+        serializer=None,
+        heuristic=None,
+    )
+    sess = requests.Session()
+    sess.mount('http://', adapter)
+    sess.mount('https://', adapter)
+
+    sess.cache_controller = adapter.controller
+    return sess
+
+
+def get_args():
+    parser = ArgumentParser()
+    parser.add_argument('url', help='The URL to try and cache')
+    return parser.parse_args()
+
+
+def main(args=None):
+    args = get_args()
+    sess = get_session()
+
+    # Make a request to get a response
+    resp = sess.get(args.url)
+
+    # Turn on logging
+    setup_logging()
+
+    # try setting the cache
+    sess.cache_controller.cache_response(resp.request, resp.raw)
+
+    # Now try to get it
+    if sess.cache_controller.cached_request(resp.request):
+        print('Cached!')
+    else:
+        print('Not cached :(')
+
+
+if __name__ == '__main__':
+    main()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/adapter.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/adapter.py
new file mode 100644
index 0000000..2348856
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/adapter.py
@@ -0,0 +1,125 @@
+import types
+import functools
+
+from pip._vendor.requests.adapters import HTTPAdapter
+
+from .controller import CacheController
+from .cache import DictCache
+from .filewrapper import CallbackFileWrapper
+
+
+class CacheControlAdapter(HTTPAdapter):
+    invalidating_methods = set(['PUT', 'DELETE'])
+
+    def __init__(self, cache=None,
+                 cache_etags=True,
+                 controller_class=None,
+                 serializer=None,
+                 heuristic=None,
+                 *args, **kw):
+        super(CacheControlAdapter, self).__init__(*args, **kw)
+        self.cache = cache or DictCache()
+        self.heuristic = heuristic
+
+        controller_factory = controller_class or CacheController
+        self.controller = controller_factory(
+            self.cache,
+            cache_etags=cache_etags,
+            serializer=serializer,
+        )
+
+    def send(self, request, **kw):
+        """
+        Send a request. Use the request information to see if it
+        exists in the cache and cache the response if we need to and can.
+        """
+        if request.method == 'GET':
+            cached_response = self.controller.cached_request(request)
+            if cached_response:
+                return self.build_response(request, cached_response,
+                                           from_cache=True)
+
+            # check for etags and add headers if appropriate
+            request.headers.update(
+                self.controller.conditional_headers(request)
+            )
+
+        resp = super(CacheControlAdapter, self).send(request, **kw)
+
+        return resp
+
+    def build_response(self, request, response, from_cache=False):
+        """
+        Build a response by making a request or using the cache.
+
+        This will end up calling send and returning a potentially
+        cached response
+        """
+        if not from_cache and request.method == 'GET':
+            # Check for any heuristics that might update headers
+            # before trying to cache.
+            if self.heuristic:
+                response = self.heuristic.apply(response)
+
+            # apply any expiration heuristics
+            if response.status == 304:
+                # We must have sent an ETag request. This could mean
+                # that we've been expired already or that we simply
+                # have an etag. In either case, we want to try and
+                # update the cache if that is the case.
+                cached_response = self.controller.update_cached_response(
+                    request, response
+                )
+
+                if cached_response is not response:
+                    from_cache = True
+
+                # We are done with the server response, read a
+                # possible response body (compliant servers will
+                # not return one, but we cannot be 100% sure) and
+                # release the connection back to the pool.
+                response.read(decode_content=False)
+                response.release_conn()
+
+                response = cached_response
+
+            # We always cache the 301 responses
+            elif response.status == 301:
+                self.controller.cache_response(request, response)
+            else:
+                # Wrap the response file with a wrapper that will cache the
+                #   response when the stream has been consumed.
+                response._fp = CallbackFileWrapper(
+                    response._fp,
+                    functools.partial(
+                        self.controller.cache_response,
+                        request,
+                        response,
+                    )
+                )
+                if response.chunked:
+                    super_update_chunk_length = response._update_chunk_length
+
+                    def _update_chunk_length(self):
+                        super_update_chunk_length()
+                        if self.chunk_left == 0:
+                            self._fp._close()
+                    response._update_chunk_length = types.MethodType(_update_chunk_length, response)
+
+        resp = super(CacheControlAdapter, self).build_response(
+            request, response
+        )
+
+        # See if we should invalidate the cache.
+        if request.method in self.invalidating_methods and resp.ok:
+            cache_url = self.controller.cache_url(request.url)
+            self.cache.delete(cache_url)
+
+        # Give the request a from_cache attr to let people use it
+        resp.from_cache = from_cache
+
+        return resp
+
+    def close(self):
+        self.cache.close()
+        super(CacheControlAdapter, self).close()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/cache.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/cache.py
new file mode 100644
index 0000000..7389a73
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/cache.py
@@ -0,0 +1,39 @@
+"""
+The cache object API for implementing caches. The default is a thread
+safe in-memory dictionary.
+"""
+from threading import Lock
+
+
+class BaseCache(object):
+
+    def get(self, key):
+        raise NotImplemented()
+
+    def set(self, key, value):
+        raise NotImplemented()
+
+    def delete(self, key):
+        raise NotImplemented()
+
+    def close(self):
+        pass
+
+
+class DictCache(BaseCache):
+
+    def __init__(self, init_dict=None):
+        self.lock = Lock()
+        self.data = init_dict or {}
+
+    def get(self, key):
+        return self.data.get(key, None)
+
+    def set(self, key, value):
+        with self.lock:
+            self.data.update({key: value})
+
+    def delete(self, key):
+        with self.lock:
+            if key in self.data:
+                self.data.pop(key)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/__init__.py
new file mode 100644
index 0000000..f9e66a1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/__init__.py
@@ -0,0 +1,18 @@
+from textwrap import dedent
+
+try:
+    from .file_cache import FileCache
+except ImportError:
+    notice = dedent('''
+    NOTE: In order to use the FileCache you must have
+    lockfile installed. You can install it via pip:
+      pip install lockfile
+    ''')
+    print(notice)
+
+
+try:
+    import redis
+    from .redis_cache import RedisCache
+except ImportError:
+    pass
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py
new file mode 100644
index 0000000..b77728f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/file_cache.py
@@ -0,0 +1,116 @@
+import hashlib
+import os
+
+from pip._vendor.lockfile import LockFile
+from pip._vendor.lockfile.mkdirlockfile import MkdirLockFile
+
+from ..cache import BaseCache
+from ..controller import CacheController
+
+
+def _secure_open_write(filename, fmode):
+    # We only want to write to this file, so open it in write only mode
+    flags = os.O_WRONLY
+
+    # os.O_CREAT | os.O_EXCL will fail if the file already exists, so we only
+    #  will open *new* files.
+    # We specify this because we want to ensure that the mode we pass is the
+    # mode of the file.
+    flags |= os.O_CREAT | os.O_EXCL
+
+    # Do not follow symlinks to prevent someone from making a symlink that
+    # we follow and insecurely open a cache file.
+    if hasattr(os, "O_NOFOLLOW"):
+        flags |= os.O_NOFOLLOW
+
+    # On Windows we'll mark this file as binary
+    if hasattr(os, "O_BINARY"):
+        flags |= os.O_BINARY
+
+    # Before we open our file, we want to delete any existing file that is
+    # there
+    try:
+        os.remove(filename)
+    except (IOError, OSError):
+        # The file must not exist already, so we can just skip ahead to opening
+        pass
+
+    # Open our file, the use of os.O_CREAT | os.O_EXCL will ensure that if a
+    # race condition happens between the os.remove and this line, that an
+    # error will be raised. Because we utilize a lockfile this should only
+    # happen if someone is attempting to attack us.
+    fd = os.open(filename, flags, fmode)
+    try:
+        return os.fdopen(fd, "wb")
+    except:
+        # An error occurred wrapping our FD in a file object
+        os.close(fd)
+        raise
+
+
+class FileCache(BaseCache):
+    def __init__(self, directory, forever=False, filemode=0o0600,
+                 dirmode=0o0700, use_dir_lock=None, lock_class=None):
+
+        if use_dir_lock is not None and lock_class is not None:
+            raise ValueError("Cannot use use_dir_lock and lock_class together")
+
+        if use_dir_lock:
+            lock_class = MkdirLockFile
+
+        if lock_class is None:
+            lock_class = LockFile
+
+        self.directory = directory
+        self.forever = forever
+        self.filemode = filemode
+        self.dirmode = dirmode
+        self.lock_class = lock_class
+
+
+    @staticmethod
+    def encode(x):
+        return hashlib.sha224(x.encode()).hexdigest()
+
+    def _fn(self, name):
+        # NOTE: This method should not change as some may depend on it.
+        #       See: https://github.com/ionrock/cachecontrol/issues/63
+        hashed = self.encode(name)
+        parts = list(hashed[:5]) + [hashed]
+        return os.path.join(self.directory, *parts)
+
+    def get(self, key):
+        name = self._fn(key)
+        if not os.path.exists(name):
+            return None
+
+        with open(name, 'rb') as fh:
+            return fh.read()
+
+    def set(self, key, value):
+        name = self._fn(key)
+
+        # Make sure the directory exists
+        try:
+            os.makedirs(os.path.dirname(name), self.dirmode)
+        except (IOError, OSError):
+            pass
+
+        with self.lock_class(name) as lock:
+            # Write our actual file
+            with _secure_open_write(lock.path, self.filemode) as fh:
+                fh.write(value)
+
+    def delete(self, key):
+        name = self._fn(key)
+        if not self.forever:
+            os.remove(name)
+
+
+def url_to_file_path(url, filecache):
+    """Return the file cache path based on the URL.
+
+    This does not ensure the file exists!
+    """
+    key = CacheController.cache_url(url)
+    return filecache._fn(key)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py
new file mode 100644
index 0000000..9f5d55f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/caches/redis_cache.py
@@ -0,0 +1,41 @@
+from __future__ import division
+
+from datetime import datetime
+
+
+def total_seconds(td):
+    """Python 2.6 compatability"""
+    if hasattr(td, 'total_seconds'):
+        return td.total_seconds()
+
+    ms = td.microseconds
+    secs = (td.seconds + td.days * 24 * 3600)
+    return (ms + secs * 10**6) / 10**6
+
+
+class RedisCache(object):
+
+    def __init__(self, conn):
+        self.conn = conn
+
+    def get(self, key):
+        return self.conn.get(key)
+
+    def set(self, key, value, expires=None):
+        if not expires:
+            self.conn.set(key, value)
+        else:
+            expires = expires - datetime.now()
+            self.conn.setex(key, total_seconds(expires), value)
+
+    def delete(self, key):
+        self.conn.delete(key)
+
+    def clear(self):
+        """Helper for clearing all the keys in a database. Use with
+        caution!"""
+        for key in self.conn.keys():
+            self.conn.delete(key)
+
+    def close(self):
+        self.conn.disconnect()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/compat.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/compat.py
new file mode 100644
index 0000000..018e6ac
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/compat.py
@@ -0,0 +1,20 @@
+try:
+    from urllib.parse import urljoin
+except ImportError:
+    from urlparse import urljoin
+
+
+try:
+    import cPickle as pickle
+except ImportError:
+    import pickle
+
+
+from pip._vendor.requests.packages.urllib3.response import HTTPResponse
+from pip._vendor.requests.packages.urllib3.util import is_fp_closed
+
+# Replicate some six behaviour
+try:
+    text_type = (unicode,)
+except NameError:
+    text_type = (str,)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/controller.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/controller.py
new file mode 100644
index 0000000..5eb961f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/controller.py
@@ -0,0 +1,353 @@
+"""
+The httplib2 algorithms ported for use with requests.
+"""
+import logging
+import re
+import calendar
+import time
+from email.utils import parsedate_tz
+
+from pip._vendor.requests.structures import CaseInsensitiveDict
+
+from .cache import DictCache
+from .serialize import Serializer
+
+
+logger = logging.getLogger(__name__)
+
+URI = re.compile(r"^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?")
+
+
+def parse_uri(uri):
+    """Parses a URI using the regex given in Appendix B of RFC 3986.
+
+        (scheme, authority, path, query, fragment) = parse_uri(uri)
+    """
+    groups = URI.match(uri).groups()
+    return (groups[1], groups[3], groups[4], groups[6], groups[8])
+
+
+class CacheController(object):
+    """An interface to see if request should cached or not.
+    """
+    def __init__(self, cache=None, cache_etags=True, serializer=None):
+        self.cache = cache or DictCache()
+        self.cache_etags = cache_etags
+        self.serializer = serializer or Serializer()
+
+    @classmethod
+    def _urlnorm(cls, uri):
+        """Normalize the URL to create a safe key for the cache"""
+        (scheme, authority, path, query, fragment) = parse_uri(uri)
+        if not scheme or not authority:
+            raise Exception("Only absolute URIs are allowed. uri = %s" % uri)
+
+        scheme = scheme.lower()
+        authority = authority.lower()
+
+        if not path:
+            path = "/"
+
+        # Could do syntax based normalization of the URI before
+        # computing the digest. See Section 6.2.2 of Std 66.
+        request_uri = query and "?".join([path, query]) or path
+        defrag_uri = scheme + "://" + authority + request_uri
+
+        return defrag_uri
+
+    @classmethod
+    def cache_url(cls, uri):
+        return cls._urlnorm(uri)
+
+    def parse_cache_control(self, headers):
+        """
+        Parse the cache control headers returning a dictionary with values
+        for the different directives.
+        """
+        retval = {}
+
+        cc_header = 'cache-control'
+        if 'Cache-Control' in headers:
+            cc_header = 'Cache-Control'
+
+        if cc_header in headers:
+            parts = headers[cc_header].split(',')
+            parts_with_args = [
+                tuple([x.strip().lower() for x in part.split("=", 1)])
+                for part in parts if -1 != part.find("=")
+            ]
+            parts_wo_args = [
+                (name.strip().lower(), 1)
+                for name in parts if -1 == name.find("=")
+            ]
+            retval = dict(parts_with_args + parts_wo_args)
+        return retval
+
+    def cached_request(self, request):
+        """
+        Return a cached response if it exists in the cache, otherwise
+        return False.
+        """
+        cache_url = self.cache_url(request.url)
+        logger.debug('Looking up "%s" in the cache', cache_url)
+        cc = self.parse_cache_control(request.headers)
+
+        # Bail out if the request insists on fresh data
+        if 'no-cache' in cc:
+            logger.debug('Request header has "no-cache", cache bypassed')
+            return False
+
+        if 'max-age' in cc and cc['max-age'] == 0:
+            logger.debug('Request header has "max_age" as 0, cache bypassed')
+            return False
+
+        # Request allows serving from the cache, let's see if we find something
+        cache_data = self.cache.get(cache_url)
+        if cache_data is None:
+            logger.debug('No cache entry available')
+            return False
+
+        # Check whether it can be deserialized
+        resp = self.serializer.loads(request, cache_data)
+        if not resp:
+            logger.warning('Cache entry deserialization failed, entry ignored')
+            return False
+
+        # If we have a cached 301, return it immediately. We don't
+        # need to test our response for other headers b/c it is
+        # intrinsically "cacheable" as it is Permanent.
+        # See:
+        #   https://tools.ietf.org/html/rfc7231#section-6.4.2
+        #
+        # Client can try to refresh the value by repeating the request
+        # with cache busting headers as usual (ie no-cache).
+        if resp.status == 301:
+            msg = ('Returning cached "301 Moved Permanently" response '
+                   '(ignoring date and etag information)')
+            logger.debug(msg)
+            return resp
+
+        headers = CaseInsensitiveDict(resp.headers)
+        if not headers or 'date' not in headers:
+            if 'etag' not in headers:
+                # Without date or etag, the cached response can never be used
+                # and should be deleted.
+                logger.debug('Purging cached response: no date or etag')
+                self.cache.delete(cache_url)
+            logger.debug('Ignoring cached response: no date')
+            return False
+
+        now = time.time()
+        date = calendar.timegm(
+            parsedate_tz(headers['date'])
+        )
+        current_age = max(0, now - date)
+        logger.debug('Current age based on date: %i', current_age)
+
+        # TODO: There is an assumption that the result will be a
+        #       urllib3 response object. This may not be best since we
+        #       could probably avoid instantiating or constructing the
+        #       response until we know we need it.
+        resp_cc = self.parse_cache_control(headers)
+
+        # determine freshness
+        freshness_lifetime = 0
+
+        # Check the max-age pragma in the cache control header
+        if 'max-age' in resp_cc and resp_cc['max-age'].isdigit():
+            freshness_lifetime = int(resp_cc['max-age'])
+            logger.debug('Freshness lifetime from max-age: %i',
+                         freshness_lifetime)
+
+        # If there isn't a max-age, check for an expires header
+        elif 'expires' in headers:
+            expires = parsedate_tz(headers['expires'])
+            if expires is not None:
+                expire_time = calendar.timegm(expires) - date
+                freshness_lifetime = max(0, expire_time)
+                logger.debug("Freshness lifetime from expires: %i",
+                             freshness_lifetime)
+
+        # Determine if we are setting freshness limit in the
+        # request. Note, this overrides what was in the response.
+        if 'max-age' in cc:
+            try:
+                freshness_lifetime = int(cc['max-age'])
+                logger.debug('Freshness lifetime from request max-age: %i',
+                             freshness_lifetime)
+            except ValueError:
+                freshness_lifetime = 0
+
+        if 'min-fresh' in cc:
+            try:
+                min_fresh = int(cc['min-fresh'])
+            except ValueError:
+                min_fresh = 0
+            # adjust our current age by our min fresh
+            current_age += min_fresh
+            logger.debug('Adjusted current age from min-fresh: %i',
+                         current_age)
+
+        # Return entry if it is fresh enough
+        if freshness_lifetime > current_age:
+            logger.debug('The response is "fresh", returning cached response')
+            logger.debug('%i > %i', freshness_lifetime, current_age)
+            return resp
+
+        # we're not fresh. If we don't have an Etag, clear it out
+        if 'etag' not in headers:
+            logger.debug(
+                'The cached response is "stale" with no etag, purging'
+            )
+            self.cache.delete(cache_url)
+
+        # return the original handler
+        return False
+
+    def conditional_headers(self, request):
+        cache_url = self.cache_url(request.url)
+        resp = self.serializer.loads(request, self.cache.get(cache_url))
+        new_headers = {}
+
+        if resp:
+            headers = CaseInsensitiveDict(resp.headers)
+
+            if 'etag' in headers:
+                new_headers['If-None-Match'] = headers['ETag']
+
+            if 'last-modified' in headers:
+                new_headers['If-Modified-Since'] = headers['Last-Modified']
+
+        return new_headers
+
+    def cache_response(self, request, response, body=None):
+        """
+        Algorithm for caching requests.
+
+        This assumes a requests Response object.
+        """
+        # From httplib2: Don't cache 206's since we aren't going to
+        #                handle byte range requests
+        cacheable_status_codes = [200, 203, 300, 301]
+        if response.status not in cacheable_status_codes:
+            logger.debug(
+                'Status code %s not in %s',
+                response.status,
+                cacheable_status_codes
+            )
+            return
+
+        response_headers = CaseInsensitiveDict(response.headers)
+
+        # If we've been given a body, our response has a Content-Length, that
+        # Content-Length is valid then we can check to see if the body we've
+        # been given matches the expected size, and if it doesn't we'll just
+        # skip trying to cache it.
+        if (body is not None and
+                "content-length" in response_headers and
+                response_headers["content-length"].isdigit() and
+                int(response_headers["content-length"]) != len(body)):
+            return
+
+        cc_req = self.parse_cache_control(request.headers)
+        cc = self.parse_cache_control(response_headers)
+
+        cache_url = self.cache_url(request.url)
+        logger.debug('Updating cache with response from "%s"', cache_url)
+
+        # Delete it from the cache if we happen to have it stored there
+        no_store = False
+        if cc.get('no-store'):
+            no_store = True
+            logger.debug('Response header has "no-store"')
+        if cc_req.get('no-store'):
+            no_store = True
+            logger.debug('Request header has "no-store"')
+        if no_store and self.cache.get(cache_url):
+            logger.debug('Purging existing cache entry to honor "no-store"')
+            self.cache.delete(cache_url)
+
+        # If we've been given an etag, then keep the response
+        if self.cache_etags and 'etag' in response_headers:
+            logger.debug('Caching due to etag')
+            self.cache.set(
+                cache_url,
+                self.serializer.dumps(request, response, body=body),
+            )
+
+        # Add to the cache any 301s. We do this before looking that
+        # the Date headers.
+        elif response.status == 301:
+            logger.debug('Caching permanant redirect')
+            self.cache.set(
+                cache_url,
+                self.serializer.dumps(request, response)
+            )
+
+        # Add to the cache if the response headers demand it. If there
+        # is no date header then we can't do anything about expiring
+        # the cache.
+        elif 'date' in response_headers:
+            # cache when there is a max-age > 0
+            if cc and cc.get('max-age'):
+                if cc['max-age'].isdigit() and int(cc['max-age']) > 0:
+                    logger.debug('Caching b/c date exists and max-age > 0')
+                    self.cache.set(
+                        cache_url,
+                        self.serializer.dumps(request, response, body=body),
+                    )
+
+            # If the request can expire, it means we should cache it
+            # in the meantime.
+            elif 'expires' in response_headers:
+                if response_headers['expires']:
+                    logger.debug('Caching b/c of expires header')
+                    self.cache.set(
+                        cache_url,
+                        self.serializer.dumps(request, response, body=body),
+                    )
+
+    def update_cached_response(self, request, response):
+        """On a 304 we will get a new set of headers that we want to
+        update our cached value with, assuming we have one.
+
+        This should only ever be called when we've sent an ETag and
+        gotten a 304 as the response.
+        """
+        cache_url = self.cache_url(request.url)
+
+        cached_response = self.serializer.loads(
+            request,
+            self.cache.get(cache_url)
+        )
+
+        if not cached_response:
+            # we didn't have a cached response
+            return response
+
+        # Lets update our headers with the headers from the new request:
+        # http://tools.ietf.org/html/draft-ietf-httpbis-p4-conditional-26#section-4.1
+        #
+        # The server isn't supposed to send headers that would make
+        # the cached body invalid. But... just in case, we'll be sure
+        # to strip out ones we know that might be problmatic due to
+        # typical assumptions.
+        excluded_headers = [
+            "content-length",
+        ]
+
+        cached_response.headers.update(
+            dict((k, v) for k, v in response.headers.items()
+                 if k.lower() not in excluded_headers)
+        )
+
+        # we want a 200 b/c we have content via the cache
+        cached_response.status = 200
+
+        # update our cache
+        self.cache.set(
+            cache_url,
+            self.serializer.dumps(request, cached_response),
+        )
+
+        return cached_response
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/filewrapper.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/filewrapper.py
new file mode 100644
index 0000000..f1e1ce0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/filewrapper.py
@@ -0,0 +1,78 @@
+from io import BytesIO
+
+
+class CallbackFileWrapper(object):
+    """
+    Small wrapper around a fp object which will tee everything read into a
+    buffer, and when that file is closed it will execute a callback with the
+    contents of that buffer.
+
+    All attributes are proxied to the underlying file object.
+
+    This class uses members with a double underscore (__) leading prefix so as
+    not to accidentally shadow an attribute.
+    """
+
+    def __init__(self, fp, callback):
+        self.__buf = BytesIO()
+        self.__fp = fp
+        self.__callback = callback
+
+    def __getattr__(self, name):
+        # The vaguaries of garbage collection means that self.__fp is
+        # not always set.  By using __getattribute__ and the private
+        # name[0] allows looking up the attribute value and raising an
+        # AttributeError when it doesn't exist. This stop thigns from
+        # infinitely recursing calls to getattr in the case where
+        # self.__fp hasn't been set.
+        #
+        # [0] https://docs.python.org/2/reference/expressions.html#atom-identifiers
+        fp = self.__getattribute__('_CallbackFileWrapper__fp')
+        return getattr(fp, name)
+
+    def __is_fp_closed(self):
+        try:
+            return self.__fp.fp is None
+        except AttributeError:
+            pass
+
+        try:
+            return self.__fp.closed
+        except AttributeError:
+            pass
+
+        # We just don't cache it then.
+        # TODO: Add some logging here...
+        return False
+
+    def _close(self):
+        if self.__callback:
+            self.__callback(self.__buf.getvalue())
+
+        # We assign this to None here, because otherwise we can get into
+        # really tricky problems where the CPython interpreter dead locks
+        # because the callback is holding a reference to something which
+        # has a __del__ method. Setting this to None breaks the cycle
+        # and allows the garbage collector to do it's thing normally.
+        self.__callback = None
+
+    def read(self, amt=None):
+        data = self.__fp.read(amt)
+        self.__buf.write(data)
+        if self.__is_fp_closed():
+            self._close()
+
+        return data
+
+    def _safe_read(self, amt):
+        data = self.__fp._safe_read(amt)
+        if amt == 2 and data == b'\r\n':
+            # urllib executes this read to toss the CRLF at the end
+            # of the chunk.
+            return data
+
+        self.__buf.write(data)
+        if self.__is_fp_closed():
+            self._close()
+
+        return data
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/heuristics.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/heuristics.py
new file mode 100644
index 0000000..94715a4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/heuristics.py
@@ -0,0 +1,138 @@
+import calendar
+import time
+
+from email.utils import formatdate, parsedate, parsedate_tz
+
+from datetime import datetime, timedelta
+
+TIME_FMT = "%a, %d %b %Y %H:%M:%S GMT"
+
+
+def expire_after(delta, date=None):
+    date = date or datetime.now()
+    return date + delta
+
+
+def datetime_to_header(dt):
+    return formatdate(calendar.timegm(dt.timetuple()))
+
+
+class BaseHeuristic(object):
+
+    def warning(self, response):
+        """
+        Return a valid 1xx warning header value describing the cache
+        adjustments.
+
+        The response is provided too allow warnings like 113
+        http://tools.ietf.org/html/rfc7234#section-5.5.4 where we need
+        to explicitly say response is over 24 hours old.
+        """
+        return '110 - "Response is Stale"'
+
+    def update_headers(self, response):
+        """Update the response headers with any new headers.
+
+        NOTE: This SHOULD always include some Warning header to
+              signify that the response was cached by the client, not
+              by way of the provided headers.
+        """
+        return {}
+
+    def apply(self, response):
+        updated_headers = self.update_headers(response)
+
+        if updated_headers:
+            response.headers.update(updated_headers)
+            warning_header_value = self.warning(response)
+            if warning_header_value is not None:
+                response.headers.update({'Warning': warning_header_value})
+
+        return response
+
+
+class OneDayCache(BaseHeuristic):
+    """
+    Cache the response by providing an expires 1 day in the
+    future.
+    """
+    def update_headers(self, response):
+        headers = {}
+
+        if 'expires' not in response.headers:
+            date = parsedate(response.headers['date'])
+            expires = expire_after(timedelta(days=1),
+                                   date=datetime(*date[:6]))
+            headers['expires'] = datetime_to_header(expires)
+            headers['cache-control'] = 'public'
+        return headers
+
+
+class ExpiresAfter(BaseHeuristic):
+    """
+    Cache **all** requests for a defined time period.
+    """
+
+    def __init__(self, **kw):
+        self.delta = timedelta(**kw)
+
+    def update_headers(self, response):
+        expires = expire_after(self.delta)
+        return {
+            'expires': datetime_to_header(expires),
+            'cache-control': 'public',
+        }
+
+    def warning(self, response):
+        tmpl = '110 - Automatically cached for %s. Response might be stale'
+        return tmpl % self.delta
+
+
+class LastModified(BaseHeuristic):
+    """
+    If there is no Expires header already, fall back on Last-Modified
+    using the heuristic from
+    http://tools.ietf.org/html/rfc7234#section-4.2.2
+    to calculate a reasonable value.
+
+    Firefox also does something like this per
+    https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching_FAQ
+    http://lxr.mozilla.org/mozilla-release/source/netwerk/protocol/http/nsHttpResponseHead.cpp#397
+    Unlike mozilla we limit this to 24-hr.
+    """
+    cacheable_by_default_statuses = set([
+        200, 203, 204, 206, 300, 301, 404, 405, 410, 414, 501
+    ])
+
+    def update_headers(self, resp):
+        headers = resp.headers
+
+        if 'expires' in headers:
+            return {}
+
+        if 'cache-control' in headers and headers['cache-control'] != 'public':
+            return {}
+
+        if resp.status not in self.cacheable_by_default_statuses:
+            return {}
+
+        if 'date' not in headers or 'last-modified' not in headers:
+            return {}
+
+        date = calendar.timegm(parsedate_tz(headers['date']))
+        last_modified = parsedate(headers['last-modified'])
+        if date is None or last_modified is None:
+            return {}
+
+        now = time.time()
+        current_age = max(0, now - date)
+        delta = date - calendar.timegm(last_modified)
+        freshness_lifetime = max(0, min(delta / 10, 24 * 3600))
+        if freshness_lifetime <= current_age:
+            return {}
+
+        expires = date + freshness_lifetime
+        return {'expires': time.strftime(TIME_FMT, time.gmtime(expires))}
+
+    def warning(self, resp):
+        return None
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/serialize.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/serialize.py
new file mode 100644
index 0000000..8f9c589
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/serialize.py
@@ -0,0 +1,196 @@
+import base64
+import io
+import json
+import zlib
+
+from pip._vendor.requests.structures import CaseInsensitiveDict
+
+from .compat import HTTPResponse, pickle, text_type
+
+
+def _b64_encode_bytes(b):
+    return base64.b64encode(b).decode("ascii")
+
+
+def _b64_encode_str(s):
+    return _b64_encode_bytes(s.encode("utf8"))
+
+
+def _b64_encode(s):
+    if isinstance(s, text_type):
+        return _b64_encode_str(s)
+    return _b64_encode_bytes(s)
+
+
+def _b64_decode_bytes(b):
+    return base64.b64decode(b.encode("ascii"))
+
+
+def _b64_decode_str(s):
+    return _b64_decode_bytes(s).decode("utf8")
+
+
+class Serializer(object):
+
+    def dumps(self, request, response, body=None):
+        response_headers = CaseInsensitiveDict(response.headers)
+
+        if body is None:
+            body = response.read(decode_content=False)
+
+            # NOTE: 99% sure this is dead code. I'm only leaving it
+            #       here b/c I don't have a test yet to prove
+            #       it. Basically, before using
+            #       `cachecontrol.filewrapper.CallbackFileWrapper`,
+            #       this made an effort to reset the file handle. The
+            #       `CallbackFileWrapper` short circuits this code by
+            #       setting the body as the content is consumed, the
+            #       result being a `body` argument is *always* passed
+            #       into cache_response, and in turn,
+            #       `Serializer.dump`.
+            response._fp = io.BytesIO(body)
+
+        data = {
+            "response": {
+                "body": _b64_encode_bytes(body),
+                "headers": dict(
+                    (_b64_encode(k), _b64_encode(v))
+                    for k, v in response.headers.items()
+                ),
+                "status": response.status,
+                "version": response.version,
+                "reason": _b64_encode_str(response.reason),
+                "strict": response.strict,
+                "decode_content": response.decode_content,
+            },
+        }
+
+        # Construct our vary headers
+        data["vary"] = {}
+        if "vary" in response_headers:
+            varied_headers = response_headers['vary'].split(',')
+            for header in varied_headers:
+                header = header.strip()
+                data["vary"][header] = request.headers.get(header, None)
+
+        # Encode our Vary headers to ensure they can be serialized as JSON
+        data["vary"] = dict(
+            (_b64_encode(k), _b64_encode(v) if v is not None else v)
+            for k, v in data["vary"].items()
+        )
+
+        return b",".join([
+            b"cc=2",
+            zlib.compress(
+                json.dumps(
+                    data, separators=(",", ":"), sort_keys=True,
+                ).encode("utf8"),
+            ),
+        ])
+
+    def loads(self, request, data):
+        # Short circuit if we've been given an empty set of data
+        if not data:
+            return
+
+        # Determine what version of the serializer the data was serialized
+        # with
+        try:
+            ver, data = data.split(b",", 1)
+        except ValueError:
+            ver = b"cc=0"
+
+        # Make sure that our "ver" is actually a version and isn't a false
+        # positive from a , being in the data stream.
+        if ver[:3] != b"cc=":
+            data = ver + data
+            ver = b"cc=0"
+
+        # Get the version number out of the cc=N
+        ver = ver.split(b"=", 1)[-1].decode("ascii")
+
+        # Dispatch to the actual load method for the given version
+        try:
+            return getattr(self, "_loads_v{0}".format(ver))(request, data)
+        except AttributeError:
+            # This is a version we don't have a loads function for, so we'll
+            # just treat it as a miss and return None
+            return
+
+    def prepare_response(self, request, cached):
+        """Verify our vary headers match and construct a real urllib3
+        HTTPResponse object.
+        """
+        # Special case the '*' Vary value as it means we cannot actually
+        # determine if the cached response is suitable for this request.
+        if "*" in cached.get("vary", {}):
+            return
+
+        # Ensure that the Vary headers for the cached response match our
+        # request
+        for header, value in cached.get("vary", {}).items():
+            if request.headers.get(header, None) != value:
+                return
+
+        body_raw = cached["response"].pop("body")
+
+        headers = CaseInsensitiveDict(data=cached['response']['headers'])
+        if headers.get('transfer-encoding', '') == 'chunked':
+            headers.pop('transfer-encoding')
+
+        cached['response']['headers'] = headers
+
+        try:
+            body = io.BytesIO(body_raw)
+        except TypeError:
+            # This can happen if cachecontrol serialized to v1 format (pickle)
+            # using Python 2. A Python 2 str(byte string) will be unpickled as
+            # a Python 3 str (unicode string), which will cause the above to
+            # fail with:
+            #
+            #     TypeError: 'str' does not support the buffer interface
+            body = io.BytesIO(body_raw.encode('utf8'))
+
+        return HTTPResponse(
+            body=body,
+            preload_content=False,
+            **cached["response"]
+        )
+
+    def _loads_v0(self, request, data):
+        # The original legacy cache data. This doesn't contain enough
+        # information to construct everything we need, so we'll treat this as
+        # a miss.
+        return
+
+    def _loads_v1(self, request, data):
+        try:
+            cached = pickle.loads(data)
+        except ValueError:
+            return
+
+        return self.prepare_response(request, cached)
+
+    def _loads_v2(self, request, data):
+        try:
+            cached = json.loads(zlib.decompress(data).decode("utf8"))
+        except ValueError:
+            return
+
+        # We need to decode the items that we've base64 encoded
+        cached["response"]["body"] = _b64_decode_bytes(
+            cached["response"]["body"]
+        )
+        cached["response"]["headers"] = dict(
+            (_b64_decode_str(k), _b64_decode_str(v))
+            for k, v in cached["response"]["headers"].items()
+        )
+        cached["response"]["reason"] = _b64_decode_str(
+            cached["response"]["reason"],
+        )
+        cached["vary"] = dict(
+            (_b64_decode_str(k), _b64_decode_str(v) if v is not None else v)
+            for k, v in cached["vary"].items()
+        )
+
+        return self.prepare_response(request, cached)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/wrapper.py b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/wrapper.py
new file mode 100644
index 0000000..ea421aa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/cachecontrol/wrapper.py
@@ -0,0 +1,21 @@
+from .adapter import CacheControlAdapter
+from .cache import DictCache
+
+
+def CacheControl(sess,
+                 cache=None,
+                 cache_etags=True,
+                 serializer=None,
+                 heuristic=None):
+
+    cache = cache or DictCache()
+    adapter = CacheControlAdapter(
+        cache,
+        cache_etags=cache_etags,
+        serializer=serializer,
+        heuristic=heuristic,
+    )
+    sess.mount('http://', adapter)
+    sess.mount('https://', adapter)
+
+    return sess
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/__init__.py
new file mode 100644
index 0000000..670e6b3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/__init__.py
@@ -0,0 +1,7 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+from .initialise import init, deinit, reinit, colorama_text
+from .ansi import Fore, Back, Style, Cursor
+from .ansitowin32 import AnsiToWin32
+
+__version__ = '0.3.7'
+
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/__pycache__/winterm.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/__pycache__/winterm.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansi.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansi.py
new file mode 100644
index 0000000..7877658
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansi.py
@@ -0,0 +1,102 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+'''
+This module generates ANSI character codes to printing colors to terminals.
+See: http://en.wikipedia.org/wiki/ANSI_escape_code
+'''
+
+CSI = '\033['
+OSC = '\033]'
+BEL = '\007'
+
+
+def code_to_chars(code):
+    return CSI + str(code) + 'm'
+
+def set_title(title):
+    return OSC + '2;' + title + BEL
+
+def clear_screen(mode=2):
+    return CSI + str(mode) + 'J'
+
+def clear_line(mode=2):
+    return CSI + str(mode) + 'K'
+
+
+class AnsiCodes(object):
+    def __init__(self):
+        # the subclasses declare class attributes which are numbers.
+        # Upon instantiation we define instance attributes, which are the same
+        # as the class attributes but wrapped with the ANSI escape sequence
+        for name in dir(self):
+            if not name.startswith('_'):
+                value = getattr(self, name)
+                setattr(self, name, code_to_chars(value))
+
+
+class AnsiCursor(object):
+    def UP(self, n=1):
+        return CSI + str(n) + 'A'
+    def DOWN(self, n=1):
+        return CSI + str(n) + 'B'
+    def FORWARD(self, n=1):
+        return CSI + str(n) + 'C'
+    def BACK(self, n=1):
+        return CSI + str(n) + 'D'
+    def POS(self, x=1, y=1):
+        return CSI + str(y) + ';' + str(x) + 'H'
+
+
+class AnsiFore(AnsiCodes):
+    BLACK           = 30
+    RED             = 31
+    GREEN           = 32
+    YELLOW          = 33
+    BLUE            = 34
+    MAGENTA         = 35
+    CYAN            = 36
+    WHITE           = 37
+    RESET           = 39
+
+    # These are fairly well supported, but not part of the standard.
+    LIGHTBLACK_EX   = 90
+    LIGHTRED_EX     = 91
+    LIGHTGREEN_EX   = 92
+    LIGHTYELLOW_EX  = 93
+    LIGHTBLUE_EX    = 94
+    LIGHTMAGENTA_EX = 95
+    LIGHTCYAN_EX    = 96
+    LIGHTWHITE_EX   = 97
+
+
+class AnsiBack(AnsiCodes):
+    BLACK           = 40
+    RED             = 41
+    GREEN           = 42
+    YELLOW          = 43
+    BLUE            = 44
+    MAGENTA         = 45
+    CYAN            = 46
+    WHITE           = 47
+    RESET           = 49
+
+    # These are fairly well supported, but not part of the standard.
+    LIGHTBLACK_EX   = 100
+    LIGHTRED_EX     = 101
+    LIGHTGREEN_EX   = 102
+    LIGHTYELLOW_EX  = 103
+    LIGHTBLUE_EX    = 104
+    LIGHTMAGENTA_EX = 105
+    LIGHTCYAN_EX    = 106
+    LIGHTWHITE_EX   = 107
+
+
+class AnsiStyle(AnsiCodes):
+    BRIGHT    = 1
+    DIM       = 2
+    NORMAL    = 22
+    RESET_ALL = 0
+
+Fore   = AnsiFore()
+Back   = AnsiBack()
+Style  = AnsiStyle()
+Cursor = AnsiCursor()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansitowin32.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansitowin32.py
new file mode 100644
index 0000000..b7ff6f2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/ansitowin32.py
@@ -0,0 +1,236 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+import re
+import sys
+import os
+
+from .ansi import AnsiFore, AnsiBack, AnsiStyle, Style
+from .winterm import WinTerm, WinColor, WinStyle
+from .win32 import windll, winapi_test
+
+
+winterm = None
+if windll is not None:
+    winterm = WinTerm()
+
+
+def is_stream_closed(stream):
+    return not hasattr(stream, 'closed') or stream.closed
+
+
+def is_a_tty(stream):
+    return hasattr(stream, 'isatty') and stream.isatty()
+
+
+class StreamWrapper(object):
+    '''
+    Wraps a stream (such as stdout), acting as a transparent proxy for all
+    attribute access apart from method 'write()', which is delegated to our
+    Converter instance.
+    '''
+    def __init__(self, wrapped, converter):
+        # double-underscore everything to prevent clashes with names of
+        # attributes on the wrapped stream object.
+        self.__wrapped = wrapped
+        self.__convertor = converter
+
+    def __getattr__(self, name):
+        return getattr(self.__wrapped, name)
+
+    def write(self, text):
+        self.__convertor.write(text)
+
+
+class AnsiToWin32(object):
+    '''
+    Implements a 'write()' method which, on Windows, will strip ANSI character
+    sequences from the text, and if outputting to a tty, will convert them into
+    win32 function calls.
+    '''
+    ANSI_CSI_RE = re.compile('\001?\033\[((?:\d|;)*)([a-zA-Z])\002?')     # Control Sequence Introducer
+    ANSI_OSC_RE = re.compile('\001?\033\]((?:.|;)*?)(\x07)\002?')         # Operating System Command
+
+    def __init__(self, wrapped, convert=None, strip=None, autoreset=False):
+        # The wrapped stream (normally sys.stdout or sys.stderr)
+        self.wrapped = wrapped
+
+        # should we reset colors to defaults after every .write()
+        self.autoreset = autoreset
+
+        # create the proxy wrapping our output stream
+        self.stream = StreamWrapper(wrapped, self)
+
+        on_windows = os.name == 'nt'
+        # We test if the WinAPI works, because even if we are on Windows
+        # we may be using a terminal that doesn't support the WinAPI
+        # (e.g. Cygwin Terminal). In this case it's up to the terminal
+        # to support the ANSI codes.
+        conversion_supported = on_windows and winapi_test()
+
+        # should we strip ANSI sequences from our output?
+        if strip is None:
+            strip = conversion_supported or (not is_stream_closed(wrapped) and not is_a_tty(wrapped))
+        self.strip = strip
+
+        # should we should convert ANSI sequences into win32 calls?
+        if convert is None:
+            convert = conversion_supported and not is_stream_closed(wrapped) and is_a_tty(wrapped)
+        self.convert = convert
+
+        # dict of ansi codes to win32 functions and parameters
+        self.win32_calls = self.get_win32_calls()
+
+        # are we wrapping stderr?
+        self.on_stderr = self.wrapped is sys.stderr
+
+    def should_wrap(self):
+        '''
+        True if this class is actually needed. If false, then the output
+        stream will not be affected, nor will win32 calls be issued, so
+        wrapping stdout is not actually required. This will generally be
+        False on non-Windows platforms, unless optional functionality like
+        autoreset has been requested using kwargs to init()
+        '''
+        return self.convert or self.strip or self.autoreset
+
+    def get_win32_calls(self):
+        if self.convert and winterm:
+            return {
+                AnsiStyle.RESET_ALL: (winterm.reset_all, ),
+                AnsiStyle.BRIGHT: (winterm.style, WinStyle.BRIGHT),
+                AnsiStyle.DIM: (winterm.style, WinStyle.NORMAL),
+                AnsiStyle.NORMAL: (winterm.style, WinStyle.NORMAL),
+                AnsiFore.BLACK: (winterm.fore, WinColor.BLACK),
+                AnsiFore.RED: (winterm.fore, WinColor.RED),
+                AnsiFore.GREEN: (winterm.fore, WinColor.GREEN),
+                AnsiFore.YELLOW: (winterm.fore, WinColor.YELLOW),
+                AnsiFore.BLUE: (winterm.fore, WinColor.BLUE),
+                AnsiFore.MAGENTA: (winterm.fore, WinColor.MAGENTA),
+                AnsiFore.CYAN: (winterm.fore, WinColor.CYAN),
+                AnsiFore.WHITE: (winterm.fore, WinColor.GREY),
+                AnsiFore.RESET: (winterm.fore, ),
+                AnsiFore.LIGHTBLACK_EX: (winterm.fore, WinColor.BLACK, True),
+                AnsiFore.LIGHTRED_EX: (winterm.fore, WinColor.RED, True),
+                AnsiFore.LIGHTGREEN_EX: (winterm.fore, WinColor.GREEN, True),
+                AnsiFore.LIGHTYELLOW_EX: (winterm.fore, WinColor.YELLOW, True),
+                AnsiFore.LIGHTBLUE_EX: (winterm.fore, WinColor.BLUE, True),
+                AnsiFore.LIGHTMAGENTA_EX: (winterm.fore, WinColor.MAGENTA, True),
+                AnsiFore.LIGHTCYAN_EX: (winterm.fore, WinColor.CYAN, True),
+                AnsiFore.LIGHTWHITE_EX: (winterm.fore, WinColor.GREY, True),
+                AnsiBack.BLACK: (winterm.back, WinColor.BLACK),
+                AnsiBack.RED: (winterm.back, WinColor.RED),
+                AnsiBack.GREEN: (winterm.back, WinColor.GREEN),
+                AnsiBack.YELLOW: (winterm.back, WinColor.YELLOW),
+                AnsiBack.BLUE: (winterm.back, WinColor.BLUE),
+                AnsiBack.MAGENTA: (winterm.back, WinColor.MAGENTA),
+                AnsiBack.CYAN: (winterm.back, WinColor.CYAN),
+                AnsiBack.WHITE: (winterm.back, WinColor.GREY),
+                AnsiBack.RESET: (winterm.back, ),
+                AnsiBack.LIGHTBLACK_EX: (winterm.back, WinColor.BLACK, True),
+                AnsiBack.LIGHTRED_EX: (winterm.back, WinColor.RED, True),
+                AnsiBack.LIGHTGREEN_EX: (winterm.back, WinColor.GREEN, True),
+                AnsiBack.LIGHTYELLOW_EX: (winterm.back, WinColor.YELLOW, True),
+                AnsiBack.LIGHTBLUE_EX: (winterm.back, WinColor.BLUE, True),
+                AnsiBack.LIGHTMAGENTA_EX: (winterm.back, WinColor.MAGENTA, True),
+                AnsiBack.LIGHTCYAN_EX: (winterm.back, WinColor.CYAN, True),
+                AnsiBack.LIGHTWHITE_EX: (winterm.back, WinColor.GREY, True),
+            }
+        return dict()
+
+    def write(self, text):
+        if self.strip or self.convert:
+            self.write_and_convert(text)
+        else:
+            self.wrapped.write(text)
+            self.wrapped.flush()
+        if self.autoreset:
+            self.reset_all()
+
+
+    def reset_all(self):
+        if self.convert:
+            self.call_win32('m', (0,))
+        elif not self.strip and not is_stream_closed(self.wrapped):
+            self.wrapped.write(Style.RESET_ALL)
+
+
+    def write_and_convert(self, text):
+        '''
+        Write the given text to our wrapped stream, stripping any ANSI
+        sequences from the text, and optionally converting them into win32
+        calls.
+        '''
+        cursor = 0
+        text = self.convert_osc(text)
+        for match in self.ANSI_CSI_RE.finditer(text):
+            start, end = match.span()
+            self.write_plain_text(text, cursor, start)
+            self.convert_ansi(*match.groups())
+            cursor = end
+        self.write_plain_text(text, cursor, len(text))
+
+
+    def write_plain_text(self, text, start, end):
+        if start < end:
+            self.wrapped.write(text[start:end])
+            self.wrapped.flush()
+
+
+    def convert_ansi(self, paramstring, command):
+        if self.convert:
+            params = self.extract_params(command, paramstring)
+            self.call_win32(command, params)
+
+
+    def extract_params(self, command, paramstring):
+        if command in 'Hf':
+            params = tuple(int(p) if len(p) != 0 else 1 for p in paramstring.split(';'))
+            while len(params) < 2:
+                # defaults:
+                params = params + (1,)
+        else:
+            params = tuple(int(p) for p in paramstring.split(';') if len(p) != 0)
+            if len(params) == 0:
+                # defaults:
+                if command in 'JKm':
+                    params = (0,)
+                elif command in 'ABCD':
+                    params = (1,)
+
+        return params
+
+
+    def call_win32(self, command, params):
+        if command == 'm':
+            for param in params:
+                if param in self.win32_calls:
+                    func_args = self.win32_calls[param]
+                    func = func_args[0]
+                    args = func_args[1:]
+                    kwargs = dict(on_stderr=self.on_stderr)
+                    func(*args, **kwargs)
+        elif command in 'J':
+            winterm.erase_screen(params[0], on_stderr=self.on_stderr)
+        elif command in 'K':
+            winterm.erase_line(params[0], on_stderr=self.on_stderr)
+        elif command in 'Hf':     # cursor position - absolute
+            winterm.set_cursor_position(params, on_stderr=self.on_stderr)
+        elif command in 'ABCD':   # cursor position - relative
+            n = params[0]
+            # A - up, B - down, C - forward, D - back
+            x, y = {'A': (0, -n), 'B': (0, n), 'C': (n, 0), 'D': (-n, 0)}[command]
+            winterm.cursor_adjust(x, y, on_stderr=self.on_stderr)
+
+
+    def convert_osc(self, text):
+        for match in self.ANSI_OSC_RE.finditer(text):
+            start, end = match.span()
+            text = text[:start] + text[end:]
+            paramstring, command = match.groups()
+            if command in '\x07':       # \x07 = BEL
+                params = paramstring.split(";")
+                # 0 - change title and icon (we will only change title)
+                # 1 - change icon (we don't support this)
+                # 2 - change title
+                if params[0] in '02':
+                    winterm.set_title(params[1])
+        return text
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/initialise.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/initialise.py
new file mode 100644
index 0000000..834962a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/initialise.py
@@ -0,0 +1,82 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+import atexit
+import contextlib
+import sys
+
+from .ansitowin32 import AnsiToWin32
+
+
+orig_stdout = None
+orig_stderr = None
+
+wrapped_stdout = None
+wrapped_stderr = None
+
+atexit_done = False
+
+
+def reset_all():
+    if AnsiToWin32 is not None:    # Issue #74: objects might become None at exit
+        AnsiToWin32(orig_stdout).reset_all()
+
+
+def init(autoreset=False, convert=None, strip=None, wrap=True):
+
+    if not wrap and any([autoreset, convert, strip]):
+        raise ValueError('wrap=False conflicts with any other arg=True')
+
+    global wrapped_stdout, wrapped_stderr
+    global orig_stdout, orig_stderr
+
+    orig_stdout = sys.stdout
+    orig_stderr = sys.stderr
+
+    if sys.stdout is None:
+        wrapped_stdout = None
+    else:
+        sys.stdout = wrapped_stdout = \
+            wrap_stream(orig_stdout, convert, strip, autoreset, wrap)
+    if sys.stderr is None:
+        wrapped_stderr = None
+    else:
+        sys.stderr = wrapped_stderr = \
+            wrap_stream(orig_stderr, convert, strip, autoreset, wrap)
+
+    global atexit_done
+    if not atexit_done:
+        atexit.register(reset_all)
+        atexit_done = True
+
+
+def deinit():
+    if orig_stdout is not None:
+        sys.stdout = orig_stdout
+    if orig_stderr is not None:
+        sys.stderr = orig_stderr
+
+
+@contextlib.contextmanager
+def colorama_text(*args, **kwargs):
+    init(*args, **kwargs)
+    try:
+        yield
+    finally:
+        deinit()
+
+
+def reinit():
+    if wrapped_stdout is not None:
+        sys.stdout = wrapped_stdout
+    if wrapped_stderr is not None:
+        sys.stderr = wrapped_stderr
+
+
+def wrap_stream(stream, convert, strip, autoreset, wrap):
+    if wrap:
+        wrapper = AnsiToWin32(stream,
+            convert=convert, strip=strip, autoreset=autoreset)
+        if wrapper.should_wrap():
+            stream = wrapper.stream
+    return stream
+
+
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/win32.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/win32.py
new file mode 100644
index 0000000..3d1d2f2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/win32.py
@@ -0,0 +1,154 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+
+# from winbase.h
+STDOUT = -11
+STDERR = -12
+
+try:
+    import ctypes
+    from ctypes import LibraryLoader
+    windll = LibraryLoader(ctypes.WinDLL)
+    from ctypes import wintypes
+except (AttributeError, ImportError):
+    windll = None
+    SetConsoleTextAttribute = lambda *_: None
+    winapi_test = lambda *_: None
+else:
+    from ctypes import byref, Structure, c_char, POINTER
+
+    COORD = wintypes._COORD
+
+    class CONSOLE_SCREEN_BUFFER_INFO(Structure):
+        """struct in wincon.h."""
+        _fields_ = [
+            ("dwSize", COORD),
+            ("dwCursorPosition", COORD),
+            ("wAttributes", wintypes.WORD),
+            ("srWindow", wintypes.SMALL_RECT),
+            ("dwMaximumWindowSize", COORD),
+        ]
+        def __str__(self):
+            return '(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d)' % (
+                self.dwSize.Y, self.dwSize.X
+                , self.dwCursorPosition.Y, self.dwCursorPosition.X
+                , self.wAttributes
+                , self.srWindow.Top, self.srWindow.Left, self.srWindow.Bottom, self.srWindow.Right
+                , self.dwMaximumWindowSize.Y, self.dwMaximumWindowSize.X
+            )
+
+    _GetStdHandle = windll.kernel32.GetStdHandle
+    _GetStdHandle.argtypes = [
+        wintypes.DWORD,
+    ]
+    _GetStdHandle.restype = wintypes.HANDLE
+
+    _GetConsoleScreenBufferInfo = windll.kernel32.GetConsoleScreenBufferInfo
+    _GetConsoleScreenBufferInfo.argtypes = [
+        wintypes.HANDLE,
+        POINTER(CONSOLE_SCREEN_BUFFER_INFO),
+    ]
+    _GetConsoleScreenBufferInfo.restype = wintypes.BOOL
+
+    _SetConsoleTextAttribute = windll.kernel32.SetConsoleTextAttribute
+    _SetConsoleTextAttribute.argtypes = [
+        wintypes.HANDLE,
+        wintypes.WORD,
+    ]
+    _SetConsoleTextAttribute.restype = wintypes.BOOL
+
+    _SetConsoleCursorPosition = windll.kernel32.SetConsoleCursorPosition
+    _SetConsoleCursorPosition.argtypes = [
+        wintypes.HANDLE,
+        COORD,
+    ]
+    _SetConsoleCursorPosition.restype = wintypes.BOOL
+
+    _FillConsoleOutputCharacterA = windll.kernel32.FillConsoleOutputCharacterA
+    _FillConsoleOutputCharacterA.argtypes = [
+        wintypes.HANDLE,
+        c_char,
+        wintypes.DWORD,
+        COORD,
+        POINTER(wintypes.DWORD),
+    ]
+    _FillConsoleOutputCharacterA.restype = wintypes.BOOL
+
+    _FillConsoleOutputAttribute = windll.kernel32.FillConsoleOutputAttribute
+    _FillConsoleOutputAttribute.argtypes = [
+        wintypes.HANDLE,
+        wintypes.WORD,
+        wintypes.DWORD,
+        COORD,
+        POINTER(wintypes.DWORD),
+    ]
+    _FillConsoleOutputAttribute.restype = wintypes.BOOL
+
+    _SetConsoleTitleW = windll.kernel32.SetConsoleTitleA
+    _SetConsoleTitleW.argtypes = [
+        wintypes.LPCSTR
+    ]
+    _SetConsoleTitleW.restype = wintypes.BOOL
+
+    handles = {
+        STDOUT: _GetStdHandle(STDOUT),
+        STDERR: _GetStdHandle(STDERR),
+    }
+
+    def winapi_test():
+        handle = handles[STDOUT]
+        csbi = CONSOLE_SCREEN_BUFFER_INFO()
+        success = _GetConsoleScreenBufferInfo(
+            handle, byref(csbi))
+        return bool(success)
+
+    def GetConsoleScreenBufferInfo(stream_id=STDOUT):
+        handle = handles[stream_id]
+        csbi = CONSOLE_SCREEN_BUFFER_INFO()
+        success = _GetConsoleScreenBufferInfo(
+            handle, byref(csbi))
+        return csbi
+
+    def SetConsoleTextAttribute(stream_id, attrs):
+        handle = handles[stream_id]
+        return _SetConsoleTextAttribute(handle, attrs)
+
+    def SetConsoleCursorPosition(stream_id, position, adjust=True):
+        position = COORD(*position)
+        # If the position is out of range, do nothing.
+        if position.Y <= 0 or position.X <= 0:
+            return
+        # Adjust for Windows' SetConsoleCursorPosition:
+        #    1. being 0-based, while ANSI is 1-based.
+        #    2. expecting (x,y), while ANSI uses (y,x).
+        adjusted_position = COORD(position.Y - 1, position.X - 1)
+        if adjust:
+            # Adjust for viewport's scroll position
+            sr = GetConsoleScreenBufferInfo(STDOUT).srWindow
+            adjusted_position.Y += sr.Top
+            adjusted_position.X += sr.Left
+        # Resume normal processing
+        handle = handles[stream_id]
+        return _SetConsoleCursorPosition(handle, adjusted_position)
+
+    def FillConsoleOutputCharacter(stream_id, char, length, start):
+        handle = handles[stream_id]
+        char = c_char(char.encode())
+        length = wintypes.DWORD(length)
+        num_written = wintypes.DWORD(0)
+        # Note that this is hard-coded for ANSI (vs wide) bytes.
+        success = _FillConsoleOutputCharacterA(
+            handle, char, length, start, byref(num_written))
+        return num_written.value
+
+    def FillConsoleOutputAttribute(stream_id, attr, length, start):
+        ''' FillConsoleOutputAttribute( hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten )'''
+        handle = handles[stream_id]
+        attribute = wintypes.WORD(attr)
+        length = wintypes.DWORD(length)
+        num_written = wintypes.DWORD(0)
+        # Note that this is hard-coded for ANSI (vs wide) bytes.
+        return _FillConsoleOutputAttribute(
+            handle, attribute, length, start, byref(num_written))
+
+    def SetConsoleTitle(title):
+        return _SetConsoleTitleW(title)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/winterm.py b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/winterm.py
new file mode 100644
index 0000000..60309d3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/colorama/winterm.py
@@ -0,0 +1,162 @@
+# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
+from . import win32
+
+
+# from wincon.h
+class WinColor(object):
+    BLACK   = 0
+    BLUE    = 1
+    GREEN   = 2
+    CYAN    = 3
+    RED     = 4
+    MAGENTA = 5
+    YELLOW  = 6
+    GREY    = 7
+
+# from wincon.h
+class WinStyle(object):
+    NORMAL              = 0x00 # dim text, dim background
+    BRIGHT              = 0x08 # bright text, dim background
+    BRIGHT_BACKGROUND   = 0x80 # dim text, bright background
+
+class WinTerm(object):
+
+    def __init__(self):
+        self._default = win32.GetConsoleScreenBufferInfo(win32.STDOUT).wAttributes
+        self.set_attrs(self._default)
+        self._default_fore = self._fore
+        self._default_back = self._back
+        self._default_style = self._style
+        # In order to emulate LIGHT_EX in windows, we borrow the BRIGHT style.
+        # So that LIGHT_EX colors and BRIGHT style do not clobber each other,
+        # we track them separately, since LIGHT_EX is overwritten by Fore/Back
+        # and BRIGHT is overwritten by Style codes.
+        self._light = 0
+
+    def get_attrs(self):
+        return self._fore + self._back * 16 + (self._style | self._light)
+
+    def set_attrs(self, value):
+        self._fore = value & 7
+        self._back = (value >> 4) & 7
+        self._style = value & (WinStyle.BRIGHT | WinStyle.BRIGHT_BACKGROUND)
+
+    def reset_all(self, on_stderr=None):
+        self.set_attrs(self._default)
+        self.set_console(attrs=self._default)
+
+    def fore(self, fore=None, light=False, on_stderr=False):
+        if fore is None:
+            fore = self._default_fore
+        self._fore = fore
+        # Emulate LIGHT_EX with BRIGHT Style
+        if light:
+            self._light |= WinStyle.BRIGHT
+        else:
+            self._light &= ~WinStyle.BRIGHT
+        self.set_console(on_stderr=on_stderr)
+
+    def back(self, back=None, light=False, on_stderr=False):
+        if back is None:
+            back = self._default_back
+        self._back = back
+        # Emulate LIGHT_EX with BRIGHT_BACKGROUND Style
+        if light:
+            self._light |= WinStyle.BRIGHT_BACKGROUND
+        else:
+            self._light &= ~WinStyle.BRIGHT_BACKGROUND
+        self.set_console(on_stderr=on_stderr)
+
+    def style(self, style=None, on_stderr=False):
+        if style is None:
+            style = self._default_style
+        self._style = style
+        self.set_console(on_stderr=on_stderr)
+
+    def set_console(self, attrs=None, on_stderr=False):
+        if attrs is None:
+            attrs = self.get_attrs()
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        win32.SetConsoleTextAttribute(handle, attrs)
+
+    def get_position(self, handle):
+        position = win32.GetConsoleScreenBufferInfo(handle).dwCursorPosition
+        # Because Windows coordinates are 0-based,
+        # and win32.SetConsoleCursorPosition expects 1-based.
+        position.X += 1
+        position.Y += 1
+        return position
+
+    def set_cursor_position(self, position=None, on_stderr=False):
+        if position is None:
+            # I'm not currently tracking the position, so there is no default.
+            # position = self.get_position()
+            return
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        win32.SetConsoleCursorPosition(handle, position)
+
+    def cursor_adjust(self, x, y, on_stderr=False):
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        position = self.get_position(handle)
+        adjusted_position = (position.Y + y, position.X + x)
+        win32.SetConsoleCursorPosition(handle, adjusted_position, adjust=False)
+
+    def erase_screen(self, mode=0, on_stderr=False):
+        # 0 should clear from the cursor to the end of the screen.
+        # 1 should clear from the cursor to the beginning of the screen.
+        # 2 should clear the entire screen, and move cursor to (1,1)
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        csbi = win32.GetConsoleScreenBufferInfo(handle)
+        # get the number of character cells in the current buffer
+        cells_in_screen = csbi.dwSize.X * csbi.dwSize.Y
+        # get number of character cells before current cursor position
+        cells_before_cursor = csbi.dwSize.X * csbi.dwCursorPosition.Y + csbi.dwCursorPosition.X
+        if mode == 0:
+            from_coord = csbi.dwCursorPosition
+            cells_to_erase = cells_in_screen - cells_before_cursor
+        if mode == 1:
+            from_coord = win32.COORD(0, 0)
+            cells_to_erase = cells_before_cursor
+        elif mode == 2:
+            from_coord = win32.COORD(0, 0)
+            cells_to_erase = cells_in_screen
+        # fill the entire screen with blanks
+        win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
+        # now set the buffer's attributes accordingly
+        win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
+        if mode == 2:
+            # put the cursor where needed
+            win32.SetConsoleCursorPosition(handle, (1, 1))
+
+    def erase_line(self, mode=0, on_stderr=False):
+        # 0 should clear from the cursor to the end of the line.
+        # 1 should clear from the cursor to the beginning of the line.
+        # 2 should clear the entire line.
+        handle = win32.STDOUT
+        if on_stderr:
+            handle = win32.STDERR
+        csbi = win32.GetConsoleScreenBufferInfo(handle)
+        if mode == 0:
+            from_coord = csbi.dwCursorPosition
+            cells_to_erase = csbi.dwSize.X - csbi.dwCursorPosition.X
+        if mode == 1:
+            from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
+            cells_to_erase = csbi.dwCursorPosition.X
+        elif mode == 2:
+            from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
+            cells_to_erase = csbi.dwSize.X
+        # fill the entire screen with blanks
+        win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
+        # now set the buffer's attributes accordingly
+        win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
+
+    def set_title(self, title):
+        win32.SetConsoleTitle(title)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/__init__.py
new file mode 100644
index 0000000..d186b0a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/__init__.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2016 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import logging
+
+__version__ = '0.2.4'
+
+class DistlibException(Exception):
+    pass
+
+try:
+    from logging import NullHandler
+except ImportError: # pragma: no cover
+    class NullHandler(logging.Handler):
+        def handle(self, record): pass
+        def emit(self, record): pass
+        def createLock(self): self.lock = None
+
+logger = logging.getLogger(__name__)
+logger.addHandler(NullHandler())
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/__init__.py
new file mode 100644
index 0000000..f7dbf4c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/__init__.py
@@ -0,0 +1,6 @@
+"""Modules copied from Python 3 standard libraries, for internal use only.
+
+Individual classes and functions are found in d2._backport.misc.  Intended
+usage is to always import things missing from 3.1 from that module: the
+built-in/stdlib objects will be used if found.
+"""
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/misc.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/misc.py
new file mode 100644
index 0000000..cfb318d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/misc.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Backports for individual classes and functions."""
+
+import os
+import sys
+
+__all__ = ['cache_from_source', 'callable', 'fsencode']
+
+
+try:
+    from imp import cache_from_source
+except ImportError:
+    def cache_from_source(py_file, debug=__debug__):
+        ext = debug and 'c' or 'o'
+        return py_file + ext
+
+
+try:
+    callable = callable
+except NameError:
+    from collections import Callable
+
+    def callable(obj):
+        return isinstance(obj, Callable)
+
+
+try:
+    fsencode = os.fsencode
+except AttributeError:
+    def fsencode(filename):
+        if isinstance(filename, bytes):
+            return filename
+        elif isinstance(filename, str):
+            return filename.encode(sys.getfilesystemencoding())
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/shutil.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/shutil.py
new file mode 100644
index 0000000..159e49e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/shutil.py
@@ -0,0 +1,761 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Utility functions for copying and archiving files and directory trees.
+
+XXX The functions here don't copy the resource fork or other metadata on Mac.
+
+"""
+
+import os
+import sys
+import stat
+from os.path import abspath
+import fnmatch
+import collections
+import errno
+from . import tarfile
+
+try:
+    import bz2
+    _BZ2_SUPPORTED = True
+except ImportError:
+    _BZ2_SUPPORTED = False
+
+try:
+    from pwd import getpwnam
+except ImportError:
+    getpwnam = None
+
+try:
+    from grp import getgrnam
+except ImportError:
+    getgrnam = None
+
+__all__ = ["copyfileobj", "copyfile", "copymode", "copystat", "copy", "copy2",
+           "copytree", "move", "rmtree", "Error", "SpecialFileError",
+           "ExecError", "make_archive", "get_archive_formats",
+           "register_archive_format", "unregister_archive_format",
+           "get_unpack_formats", "register_unpack_format",
+           "unregister_unpack_format", "unpack_archive", "ignore_patterns"]
+
+class Error(EnvironmentError):
+    pass
+
+class SpecialFileError(EnvironmentError):
+    """Raised when trying to do a kind of operation (e.g. copying) which is
+    not supported on a special file (e.g. a named pipe)"""
+
+class ExecError(EnvironmentError):
+    """Raised when a command could not be executed"""
+
+class ReadError(EnvironmentError):
+    """Raised when an archive cannot be read"""
+
+class RegistryError(Exception):
+    """Raised when a registry operation with the archiving
+    and unpacking registries fails"""
+
+
+try:
+    WindowsError
+except NameError:
+    WindowsError = None
+
+def copyfileobj(fsrc, fdst, length=16*1024):
+    """copy data from file-like object fsrc to file-like object fdst"""
+    while 1:
+        buf = fsrc.read(length)
+        if not buf:
+            break
+        fdst.write(buf)
+
+def _samefile(src, dst):
+    # Macintosh, Unix.
+    if hasattr(os.path, 'samefile'):
+        try:
+            return os.path.samefile(src, dst)
+        except OSError:
+            return False
+
+    # All other platforms: check for same pathname.
+    return (os.path.normcase(os.path.abspath(src)) ==
+            os.path.normcase(os.path.abspath(dst)))
+
+def copyfile(src, dst):
+    """Copy data from src to dst"""
+    if _samefile(src, dst):
+        raise Error("`%s` and `%s` are the same file" % (src, dst))
+
+    for fn in [src, dst]:
+        try:
+            st = os.stat(fn)
+        except OSError:
+            # File most likely does not exist
+            pass
+        else:
+            # XXX What about other special files? (sockets, devices...)
+            if stat.S_ISFIFO(st.st_mode):
+                raise SpecialFileError("`%s` is a named pipe" % fn)
+
+    with open(src, 'rb') as fsrc:
+        with open(dst, 'wb') as fdst:
+            copyfileobj(fsrc, fdst)
+
+def copymode(src, dst):
+    """Copy mode bits from src to dst"""
+    if hasattr(os, 'chmod'):
+        st = os.stat(src)
+        mode = stat.S_IMODE(st.st_mode)
+        os.chmod(dst, mode)
+
+def copystat(src, dst):
+    """Copy all stat info (mode bits, atime, mtime, flags) from src to dst"""
+    st = os.stat(src)
+    mode = stat.S_IMODE(st.st_mode)
+    if hasattr(os, 'utime'):
+        os.utime(dst, (st.st_atime, st.st_mtime))
+    if hasattr(os, 'chmod'):
+        os.chmod(dst, mode)
+    if hasattr(os, 'chflags') and hasattr(st, 'st_flags'):
+        try:
+            os.chflags(dst, st.st_flags)
+        except OSError as why:
+            if (not hasattr(errno, 'EOPNOTSUPP') or
+                why.errno != errno.EOPNOTSUPP):
+                raise
+
+def copy(src, dst):
+    """Copy data and mode bits ("cp src dst").
+
+    The destination may be a directory.
+
+    """
+    if os.path.isdir(dst):
+        dst = os.path.join(dst, os.path.basename(src))
+    copyfile(src, dst)
+    copymode(src, dst)
+
+def copy2(src, dst):
+    """Copy data and all stat info ("cp -p src dst").
+
+    The destination may be a directory.
+
+    """
+    if os.path.isdir(dst):
+        dst = os.path.join(dst, os.path.basename(src))
+    copyfile(src, dst)
+    copystat(src, dst)
+
+def ignore_patterns(*patterns):
+    """Function that can be used as copytree() ignore parameter.
+
+    Patterns is a sequence of glob-style patterns
+    that are used to exclude files"""
+    def _ignore_patterns(path, names):
+        ignored_names = []
+        for pattern in patterns:
+            ignored_names.extend(fnmatch.filter(names, pattern))
+        return set(ignored_names)
+    return _ignore_patterns
+
+def copytree(src, dst, symlinks=False, ignore=None, copy_function=copy2,
+             ignore_dangling_symlinks=False):
+    """Recursively copy a directory tree.
+
+    The destination directory must not already exist.
+    If exception(s) occur, an Error is raised with a list of reasons.
+
+    If the optional symlinks flag is true, symbolic links in the
+    source tree result in symbolic links in the destination tree; if
+    it is false, the contents of the files pointed to by symbolic
+    links are copied. If the file pointed by the symlink doesn't
+    exist, an exception will be added in the list of errors raised in
+    an Error exception at the end of the copy process.
+
+    You can set the optional ignore_dangling_symlinks flag to true if you
+    want to silence this exception. Notice that this has no effect on
+    platforms that don't support os.symlink.
+
+    The optional ignore argument is a callable. If given, it
+    is called with the `src` parameter, which is the directory
+    being visited by copytree(), and `names` which is the list of
+    `src` contents, as returned by os.listdir():
+
+        callable(src, names) -> ignored_names
+
+    Since copytree() is called recursively, the callable will be
+    called once for each directory that is copied. It returns a
+    list of names relative to the `src` directory that should
+    not be copied.
+
+    The optional copy_function argument is a callable that will be used
+    to copy each file. It will be called with the source path and the
+    destination path as arguments. By default, copy2() is used, but any
+    function that supports the same signature (like copy()) can be used.
+
+    """
+    names = os.listdir(src)
+    if ignore is not None:
+        ignored_names = ignore(src, names)
+    else:
+        ignored_names = set()
+
+    os.makedirs(dst)
+    errors = []
+    for name in names:
+        if name in ignored_names:
+            continue
+        srcname = os.path.join(src, name)
+        dstname = os.path.join(dst, name)
+        try:
+            if os.path.islink(srcname):
+                linkto = os.readlink(srcname)
+                if symlinks:
+                    os.symlink(linkto, dstname)
+                else:
+                    # ignore dangling symlink if the flag is on
+                    if not os.path.exists(linkto) and ignore_dangling_symlinks:
+                        continue
+                    # otherwise let the copy occurs. copy2 will raise an error
+                    copy_function(srcname, dstname)
+            elif os.path.isdir(srcname):
+                copytree(srcname, dstname, symlinks, ignore, copy_function)
+            else:
+                # Will raise a SpecialFileError for unsupported file types
+                copy_function(srcname, dstname)
+        # catch the Error from the recursive copytree so that we can
+        # continue with other files
+        except Error as err:
+            errors.extend(err.args[0])
+        except EnvironmentError as why:
+            errors.append((srcname, dstname, str(why)))
+    try:
+        copystat(src, dst)
+    except OSError as why:
+        if WindowsError is not None and isinstance(why, WindowsError):
+            # Copying file access times may fail on Windows
+            pass
+        else:
+            errors.extend((src, dst, str(why)))
+    if errors:
+        raise Error(errors)
+
+def rmtree(path, ignore_errors=False, onerror=None):
+    """Recursively delete a directory tree.
+
+    If ignore_errors is set, errors are ignored; otherwise, if onerror
+    is set, it is called to handle the error with arguments (func,
+    path, exc_info) where func is os.listdir, os.remove, or os.rmdir;
+    path is the argument to that function that caused it to fail; and
+    exc_info is a tuple returned by sys.exc_info().  If ignore_errors
+    is false and onerror is None, an exception is raised.
+
+    """
+    if ignore_errors:
+        def onerror(*args):
+            pass
+    elif onerror is None:
+        def onerror(*args):
+            raise
+    try:
+        if os.path.islink(path):
+            # symlinks to directories are forbidden, see bug #1669
+            raise OSError("Cannot call rmtree on a symbolic link")
+    except OSError:
+        onerror(os.path.islink, path, sys.exc_info())
+        # can't continue even if onerror hook returns
+        return
+    names = []
+    try:
+        names = os.listdir(path)
+    except os.error:
+        onerror(os.listdir, path, sys.exc_info())
+    for name in names:
+        fullname = os.path.join(path, name)
+        try:
+            mode = os.lstat(fullname).st_mode
+        except os.error:
+            mode = 0
+        if stat.S_ISDIR(mode):
+            rmtree(fullname, ignore_errors, onerror)
+        else:
+            try:
+                os.remove(fullname)
+            except os.error:
+                onerror(os.remove, fullname, sys.exc_info())
+    try:
+        os.rmdir(path)
+    except os.error:
+        onerror(os.rmdir, path, sys.exc_info())
+
+
+def _basename(path):
+    # A basename() variant which first strips the trailing slash, if present.
+    # Thus we always get the last component of the path, even for directories.
+    return os.path.basename(path.rstrip(os.path.sep))
+
+def move(src, dst):
+    """Recursively move a file or directory to another location. This is
+    similar to the Unix "mv" command.
+
+    If the destination is a directory or a symlink to a directory, the source
+    is moved inside the directory. The destination path must not already
+    exist.
+
+    If the destination already exists but is not a directory, it may be
+    overwritten depending on os.rename() semantics.
+
+    If the destination is on our current filesystem, then rename() is used.
+    Otherwise, src is copied to the destination and then removed.
+    A lot more could be done here...  A look at a mv.c shows a lot of
+    the issues this implementation glosses over.
+
+    """
+    real_dst = dst
+    if os.path.isdir(dst):
+        if _samefile(src, dst):
+            # We might be on a case insensitive filesystem,
+            # perform the rename anyway.
+            os.rename(src, dst)
+            return
+
+        real_dst = os.path.join(dst, _basename(src))
+        if os.path.exists(real_dst):
+            raise Error("Destination path '%s' already exists" % real_dst)
+    try:
+        os.rename(src, real_dst)
+    except OSError:
+        if os.path.isdir(src):
+            if _destinsrc(src, dst):
+                raise Error("Cannot move a directory '%s' into itself '%s'." % (src, dst))
+            copytree(src, real_dst, symlinks=True)
+            rmtree(src)
+        else:
+            copy2(src, real_dst)
+            os.unlink(src)
+
+def _destinsrc(src, dst):
+    src = abspath(src)
+    dst = abspath(dst)
+    if not src.endswith(os.path.sep):
+        src += os.path.sep
+    if not dst.endswith(os.path.sep):
+        dst += os.path.sep
+    return dst.startswith(src)
+
+def _get_gid(name):
+    """Returns a gid, given a group name."""
+    if getgrnam is None or name is None:
+        return None
+    try:
+        result = getgrnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+def _get_uid(name):
+    """Returns an uid, given a user name."""
+    if getpwnam is None or name is None:
+        return None
+    try:
+        result = getpwnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+def _make_tarball(base_name, base_dir, compress="gzip", verbose=0, dry_run=0,
+                  owner=None, group=None, logger=None):
+    """Create a (possibly compressed) tar file from all the files under
+    'base_dir'.
+
+    'compress' must be "gzip" (the default), "bzip2", or None.
+
+    'owner' and 'group' can be used to define an owner and a group for the
+    archive that is being built. If not provided, the current owner and group
+    will be used.
+
+    The output tar file will be named 'base_name' +  ".tar", possibly plus
+    the appropriate compression extension (".gz", or ".bz2").
+
+    Returns the output filename.
+    """
+    tar_compression = {'gzip': 'gz', None: ''}
+    compress_ext = {'gzip': '.gz'}
+
+    if _BZ2_SUPPORTED:
+        tar_compression['bzip2'] = 'bz2'
+        compress_ext['bzip2'] = '.bz2'
+
+    # flags for compression program, each element of list will be an argument
+    if compress is not None and compress not in compress_ext:
+        raise ValueError("bad value for 'compress', or compression format not "
+                         "supported : {0}".format(compress))
+
+    archive_name = base_name + '.tar' + compress_ext.get(compress, '')
+    archive_dir = os.path.dirname(archive_name)
+
+    if not os.path.exists(archive_dir):
+        if logger is not None:
+            logger.info("creating %s", archive_dir)
+        if not dry_run:
+            os.makedirs(archive_dir)
+
+    # creating the tarball
+    if logger is not None:
+        logger.info('Creating tar archive')
+
+    uid = _get_uid(owner)
+    gid = _get_gid(group)
+
+    def _set_uid_gid(tarinfo):
+        if gid is not None:
+            tarinfo.gid = gid
+            tarinfo.gname = group
+        if uid is not None:
+            tarinfo.uid = uid
+            tarinfo.uname = owner
+        return tarinfo
+
+    if not dry_run:
+        tar = tarfile.open(archive_name, 'w|%s' % tar_compression[compress])
+        try:
+            tar.add(base_dir, filter=_set_uid_gid)
+        finally:
+            tar.close()
+
+    return archive_name
+
+def _call_external_zip(base_dir, zip_filename, verbose=False, dry_run=False):
+    # XXX see if we want to keep an external call here
+    if verbose:
+        zipoptions = "-r"
+    else:
+        zipoptions = "-rq"
+    from distutils.errors import DistutilsExecError
+    from distutils.spawn import spawn
+    try:
+        spawn(["zip", zipoptions, zip_filename, base_dir], dry_run=dry_run)
+    except DistutilsExecError:
+        # XXX really should distinguish between "couldn't find
+        # external 'zip' command" and "zip failed".
+        raise ExecError("unable to create zip file '%s': "
+            "could neither import the 'zipfile' module nor "
+            "find a standalone zip utility") % zip_filename
+
+def _make_zipfile(base_name, base_dir, verbose=0, dry_run=0, logger=None):
+    """Create a zip file from all the files under 'base_dir'.
+
+    The output zip file will be named 'base_name' + ".zip".  Uses either the
+    "zipfile" Python module (if available) or the InfoZIP "zip" utility
+    (if installed and found on the default search path).  If neither tool is
+    available, raises ExecError.  Returns the name of the output zip
+    file.
+    """
+    zip_filename = base_name + ".zip"
+    archive_dir = os.path.dirname(base_name)
+
+    if not os.path.exists(archive_dir):
+        if logger is not None:
+            logger.info("creating %s", archive_dir)
+        if not dry_run:
+            os.makedirs(archive_dir)
+
+    # If zipfile module is not available, try spawning an external 'zip'
+    # command.
+    try:
+        import zipfile
+    except ImportError:
+        zipfile = None
+
+    if zipfile is None:
+        _call_external_zip(base_dir, zip_filename, verbose, dry_run)
+    else:
+        if logger is not None:
+            logger.info("creating '%s' and adding '%s' to it",
+                        zip_filename, base_dir)
+
+        if not dry_run:
+            zip = zipfile.ZipFile(zip_filename, "w",
+                                  compression=zipfile.ZIP_DEFLATED)
+
+            for dirpath, dirnames, filenames in os.walk(base_dir):
+                for name in filenames:
+                    path = os.path.normpath(os.path.join(dirpath, name))
+                    if os.path.isfile(path):
+                        zip.write(path, path)
+                        if logger is not None:
+                            logger.info("adding '%s'", path)
+            zip.close()
+
+    return zip_filename
+
+_ARCHIVE_FORMATS = {
+    'gztar': (_make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"),
+    'bztar': (_make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"),
+    'tar':   (_make_tarball, [('compress', None)], "uncompressed tar file"),
+    'zip':   (_make_zipfile, [], "ZIP file"),
+    }
+
+if _BZ2_SUPPORTED:
+    _ARCHIVE_FORMATS['bztar'] = (_make_tarball, [('compress', 'bzip2')],
+                                "bzip2'ed tar-file")
+
+def get_archive_formats():
+    """Returns a list of supported formats for archiving and unarchiving.
+
+    Each element of the returned sequence is a tuple (name, description)
+    """
+    formats = [(name, registry[2]) for name, registry in
+               _ARCHIVE_FORMATS.items()]
+    formats.sort()
+    return formats
+
+def register_archive_format(name, function, extra_args=None, description=''):
+    """Registers an archive format.
+
+    name is the name of the format. function is the callable that will be
+    used to create archives. If provided, extra_args is a sequence of
+    (name, value) tuples that will be passed as arguments to the callable.
+    description can be provided to describe the format, and will be returned
+    by the get_archive_formats() function.
+    """
+    if extra_args is None:
+        extra_args = []
+    if not isinstance(function, collections.Callable):
+        raise TypeError('The %s object is not callable' % function)
+    if not isinstance(extra_args, (tuple, list)):
+        raise TypeError('extra_args needs to be a sequence')
+    for element in extra_args:
+        if not isinstance(element, (tuple, list)) or len(element) !=2:
+            raise TypeError('extra_args elements are : (arg_name, value)')
+
+    _ARCHIVE_FORMATS[name] = (function, extra_args, description)
+
+def unregister_archive_format(name):
+    del _ARCHIVE_FORMATS[name]
+
+def make_archive(base_name, format, root_dir=None, base_dir=None, verbose=0,
+                 dry_run=0, owner=None, group=None, logger=None):
+    """Create an archive file (eg. zip or tar).
+
+    'base_name' is the name of the file to create, minus any format-specific
+    extension; 'format' is the archive format: one of "zip", "tar", "bztar"
+    or "gztar".
+
+    'root_dir' is a directory that will be the root directory of the
+    archive; ie. we typically chdir into 'root_dir' before creating the
+    archive.  'base_dir' is the directory where we start archiving from;
+    ie. 'base_dir' will be the common prefix of all files and
+    directories in the archive.  'root_dir' and 'base_dir' both default
+    to the current directory.  Returns the name of the archive file.
+
+    'owner' and 'group' are used when creating a tar archive. By default,
+    uses the current owner and group.
+    """
+    save_cwd = os.getcwd()
+    if root_dir is not None:
+        if logger is not None:
+            logger.debug("changing into '%s'", root_dir)
+        base_name = os.path.abspath(base_name)
+        if not dry_run:
+            os.chdir(root_dir)
+
+    if base_dir is None:
+        base_dir = os.curdir
+
+    kwargs = {'dry_run': dry_run, 'logger': logger}
+
+    try:
+        format_info = _ARCHIVE_FORMATS[format]
+    except KeyError:
+        raise ValueError("unknown archive format '%s'" % format)
+
+    func = format_info[0]
+    for arg, val in format_info[1]:
+        kwargs[arg] = val
+
+    if format != 'zip':
+        kwargs['owner'] = owner
+        kwargs['group'] = group
+
+    try:
+        filename = func(base_name, base_dir, **kwargs)
+    finally:
+        if root_dir is not None:
+            if logger is not None:
+                logger.debug("changing back to '%s'", save_cwd)
+            os.chdir(save_cwd)
+
+    return filename
+
+
+def get_unpack_formats():
+    """Returns a list of supported formats for unpacking.
+
+    Each element of the returned sequence is a tuple
+    (name, extensions, description)
+    """
+    formats = [(name, info[0], info[3]) for name, info in
+               _UNPACK_FORMATS.items()]
+    formats.sort()
+    return formats
+
+def _check_unpack_options(extensions, function, extra_args):
+    """Checks what gets registered as an unpacker."""
+    # first make sure no other unpacker is registered for this extension
+    existing_extensions = {}
+    for name, info in _UNPACK_FORMATS.items():
+        for ext in info[0]:
+            existing_extensions[ext] = name
+
+    for extension in extensions:
+        if extension in existing_extensions:
+            msg = '%s is already registered for "%s"'
+            raise RegistryError(msg % (extension,
+                                       existing_extensions[extension]))
+
+    if not isinstance(function, collections.Callable):
+        raise TypeError('The registered function must be a callable')
+
+
+def register_unpack_format(name, extensions, function, extra_args=None,
+                           description=''):
+    """Registers an unpack format.
+
+    `name` is the name of the format. `extensions` is a list of extensions
+    corresponding to the format.
+
+    `function` is the callable that will be
+    used to unpack archives. The callable will receive archives to unpack.
+    If it's unable to handle an archive, it needs to raise a ReadError
+    exception.
+
+    If provided, `extra_args` is a sequence of
+    (name, value) tuples that will be passed as arguments to the callable.
+    description can be provided to describe the format, and will be returned
+    by the get_unpack_formats() function.
+    """
+    if extra_args is None:
+        extra_args = []
+    _check_unpack_options(extensions, function, extra_args)
+    _UNPACK_FORMATS[name] = extensions, function, extra_args, description
+
+def unregister_unpack_format(name):
+    """Removes the pack format from the registry."""
+    del _UNPACK_FORMATS[name]
+
+def _ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    if not os.path.isdir(dirname):
+        os.makedirs(dirname)
+
+def _unpack_zipfile(filename, extract_dir):
+    """Unpack zip `filename` to `extract_dir`
+    """
+    try:
+        import zipfile
+    except ImportError:
+        raise ReadError('zlib not supported, cannot unpack this archive.')
+
+    if not zipfile.is_zipfile(filename):
+        raise ReadError("%s is not a zip file" % filename)
+
+    zip = zipfile.ZipFile(filename)
+    try:
+        for info in zip.infolist():
+            name = info.filename
+
+            # don't extract absolute paths or ones with .. in them
+            if name.startswith('/') or '..' in name:
+                continue
+
+            target = os.path.join(extract_dir, *name.split('/'))
+            if not target:
+                continue
+
+            _ensure_directory(target)
+            if not name.endswith('/'):
+                # file
+                data = zip.read(info.filename)
+                f = open(target, 'wb')
+                try:
+                    f.write(data)
+                finally:
+                    f.close()
+                    del data
+    finally:
+        zip.close()
+
+def _unpack_tarfile(filename, extract_dir):
+    """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
+    """
+    try:
+        tarobj = tarfile.open(filename)
+    except tarfile.TarError:
+        raise ReadError(
+            "%s is not a compressed or uncompressed tar file" % filename)
+    try:
+        tarobj.extractall(extract_dir)
+    finally:
+        tarobj.close()
+
+_UNPACK_FORMATS = {
+    'gztar': (['.tar.gz', '.tgz'], _unpack_tarfile, [], "gzip'ed tar-file"),
+    'tar':   (['.tar'], _unpack_tarfile, [], "uncompressed tar file"),
+    'zip':   (['.zip'], _unpack_zipfile, [], "ZIP file")
+    }
+
+if _BZ2_SUPPORTED:
+    _UNPACK_FORMATS['bztar'] = (['.bz2'], _unpack_tarfile, [],
+                                "bzip2'ed tar-file")
+
+def _find_unpack_format(filename):
+    for name, info in _UNPACK_FORMATS.items():
+        for extension in info[0]:
+            if filename.endswith(extension):
+                return name
+    return None
+
+def unpack_archive(filename, extract_dir=None, format=None):
+    """Unpack an archive.
+
+    `filename` is the name of the archive.
+
+    `extract_dir` is the name of the target directory, where the archive
+    is unpacked. If not provided, the current working directory is used.
+
+    `format` is the archive format: one of "zip", "tar", or "gztar". Or any
+    other registered format. If not provided, unpack_archive will use the
+    filename extension and see if an unpacker was registered for that
+    extension.
+
+    In case none is found, a ValueError is raised.
+    """
+    if extract_dir is None:
+        extract_dir = os.getcwd()
+
+    if format is not None:
+        try:
+            format_info = _UNPACK_FORMATS[format]
+        except KeyError:
+            raise ValueError("Unknown unpack format '{0}'".format(format))
+
+        func = format_info[1]
+        func(filename, extract_dir, **dict(format_info[2]))
+    else:
+        # we need to look at the registered unpackers supported extensions
+        format = _find_unpack_format(filename)
+        if format is None:
+            raise ReadError("Unknown archive format '{0}'".format(filename))
+
+        func = _UNPACK_FORMATS[format][1]
+        kwargs = dict(_UNPACK_FORMATS[format][2])
+        func(filename, extract_dir, **kwargs)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg
new file mode 100644
index 0000000..1746bd0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.cfg
@@ -0,0 +1,84 @@
+[posix_prefix]
+# Configuration directories.  Some of these come straight out of the
+# configure script.  They are for implementing the other variables, not to
+# be used directly in [resource_locations].
+confdir = /etc
+datadir = /usr/share
+libdir = /usr/lib
+statedir = /var
+# User resource directory
+local = ~/.local/{distribution.name}
+
+stdlib = {base}/lib/python{py_version_short}
+platstdlib = {platbase}/lib/python{py_version_short}
+purelib = {base}/lib/python{py_version_short}/site-packages
+platlib = {platbase}/lib/python{py_version_short}/site-packages
+include = {base}/include/python{py_version_short}{abiflags}
+platinclude = {platbase}/include/python{py_version_short}{abiflags}
+data = {base}
+
+[posix_home]
+stdlib = {base}/lib/python
+platstdlib = {base}/lib/python
+purelib = {base}/lib/python
+platlib = {base}/lib/python
+include = {base}/include/python
+platinclude = {base}/include/python
+scripts = {base}/bin
+data = {base}
+
+[nt]
+stdlib = {base}/Lib
+platstdlib = {base}/Lib
+purelib = {base}/Lib/site-packages
+platlib = {base}/Lib/site-packages
+include = {base}/Include
+platinclude = {base}/Include
+scripts = {base}/Scripts
+data = {base}
+
+[os2]
+stdlib = {base}/Lib
+platstdlib = {base}/Lib
+purelib = {base}/Lib/site-packages
+platlib = {base}/Lib/site-packages
+include = {base}/Include
+platinclude = {base}/Include
+scripts = {base}/Scripts
+data = {base}
+
+[os2_home]
+stdlib = {userbase}/lib/python{py_version_short}
+platstdlib = {userbase}/lib/python{py_version_short}
+purelib = {userbase}/lib/python{py_version_short}/site-packages
+platlib = {userbase}/lib/python{py_version_short}/site-packages
+include = {userbase}/include/python{py_version_short}
+scripts = {userbase}/bin
+data = {userbase}
+
+[nt_user]
+stdlib = {userbase}/Python{py_version_nodot}
+platstdlib = {userbase}/Python{py_version_nodot}
+purelib = {userbase}/Python{py_version_nodot}/site-packages
+platlib = {userbase}/Python{py_version_nodot}/site-packages
+include = {userbase}/Python{py_version_nodot}/Include
+scripts = {userbase}/Scripts
+data = {userbase}
+
+[posix_user]
+stdlib = {userbase}/lib/python{py_version_short}
+platstdlib = {userbase}/lib/python{py_version_short}
+purelib = {userbase}/lib/python{py_version_short}/site-packages
+platlib = {userbase}/lib/python{py_version_short}/site-packages
+include = {userbase}/include/python{py_version_short}
+scripts = {userbase}/bin
+data = {userbase}
+
+[osx_framework_user]
+stdlib = {userbase}/lib/python
+platstdlib = {userbase}/lib/python
+purelib = {userbase}/lib/python/site-packages
+platlib = {userbase}/lib/python/site-packages
+include = {userbase}/include
+scripts = {userbase}/bin
+data = {userbase}
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.py
new file mode 100644
index 0000000..ec28480
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/sysconfig.py
@@ -0,0 +1,788 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Access to Python's configuration information."""
+
+import codecs
+import os
+import re
+import sys
+from os.path import pardir, realpath
+try:
+    import configparser
+except ImportError:
+    import ConfigParser as configparser
+
+
+__all__ = [
+    'get_config_h_filename',
+    'get_config_var',
+    'get_config_vars',
+    'get_makefile_filename',
+    'get_path',
+    'get_path_names',
+    'get_paths',
+    'get_platform',
+    'get_python_version',
+    'get_scheme_names',
+    'parse_config_h',
+]
+
+
+def _safe_realpath(path):
+    try:
+        return realpath(path)
+    except OSError:
+        return path
+
+
+if sys.executable:
+    _PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable))
+else:
+    # sys.executable can be empty if argv[0] has been changed and Python is
+    # unable to retrieve the real program name
+    _PROJECT_BASE = _safe_realpath(os.getcwd())
+
+if os.name == "nt" and "pcbuild" in _PROJECT_BASE[-8:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
+# PC/VS7.1
+if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+# PC/AMD64
+if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+
+
+def is_python_build():
+    for fn in ("Setup.dist", "Setup.local"):
+        if os.path.isfile(os.path.join(_PROJECT_BASE, "Modules", fn)):
+            return True
+    return False
+
+_PYTHON_BUILD = is_python_build()
+
+_cfg_read = False
+
+def _ensure_cfg_read():
+    global _cfg_read
+    if not _cfg_read:
+        from ..resources import finder
+        backport_package = __name__.rsplit('.', 1)[0]
+        _finder = finder(backport_package)
+        _cfgfile = _finder.find('sysconfig.cfg')
+        assert _cfgfile, 'sysconfig.cfg exists'
+        with _cfgfile.as_stream() as s:
+            _SCHEMES.readfp(s)
+        if _PYTHON_BUILD:
+            for scheme in ('posix_prefix', 'posix_home'):
+                _SCHEMES.set(scheme, 'include', '{srcdir}/Include')
+                _SCHEMES.set(scheme, 'platinclude', '{projectbase}/.')
+
+        _cfg_read = True
+
+
+_SCHEMES = configparser.RawConfigParser()
+_VAR_REPL = re.compile(r'\{([^{]*?)\}')
+
+def _expand_globals(config):
+    _ensure_cfg_read()
+    if config.has_section('globals'):
+        globals = config.items('globals')
+    else:
+        globals = tuple()
+
+    sections = config.sections()
+    for section in sections:
+        if section == 'globals':
+            continue
+        for option, value in globals:
+            if config.has_option(section, option):
+                continue
+            config.set(section, option, value)
+    config.remove_section('globals')
+
+    # now expanding local variables defined in the cfg file
+    #
+    for section in config.sections():
+        variables = dict(config.items(section))
+
+        def _replacer(matchobj):
+            name = matchobj.group(1)
+            if name in variables:
+                return variables[name]
+            return matchobj.group(0)
+
+        for option, value in config.items(section):
+            config.set(section, option, _VAR_REPL.sub(_replacer, value))
+
+#_expand_globals(_SCHEMES)
+
+ # FIXME don't rely on sys.version here, its format is an implementation detail
+ # of CPython, use sys.version_info or sys.hexversion
+_PY_VERSION = sys.version.split()[0]
+_PY_VERSION_SHORT = sys.version[:3]
+_PY_VERSION_SHORT_NO_DOT = _PY_VERSION[0] + _PY_VERSION[2]
+_PREFIX = os.path.normpath(sys.prefix)
+_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
+_CONFIG_VARS = None
+_USER_BASE = None
+
+
+def _subst_vars(path, local_vars):
+    """In the string `path`, replace tokens like {some.thing} with the
+    corresponding value from the map `local_vars`.
+
+    If there is no corresponding value, leave the token unchanged.
+    """
+    def _replacer(matchobj):
+        name = matchobj.group(1)
+        if name in local_vars:
+            return local_vars[name]
+        elif name in os.environ:
+            return os.environ[name]
+        return matchobj.group(0)
+    return _VAR_REPL.sub(_replacer, path)
+
+
+def _extend_dict(target_dict, other_dict):
+    target_keys = target_dict.keys()
+    for key, value in other_dict.items():
+        if key in target_keys:
+            continue
+        target_dict[key] = value
+
+
+def _expand_vars(scheme, vars):
+    res = {}
+    if vars is None:
+        vars = {}
+    _extend_dict(vars, get_config_vars())
+
+    for key, value in _SCHEMES.items(scheme):
+        if os.name in ('posix', 'nt'):
+            value = os.path.expanduser(value)
+        res[key] = os.path.normpath(_subst_vars(value, vars))
+    return res
+
+
+def format_value(value, vars):
+    def _replacer(matchobj):
+        name = matchobj.group(1)
+        if name in vars:
+            return vars[name]
+        return matchobj.group(0)
+    return _VAR_REPL.sub(_replacer, value)
+
+
+def _get_default_scheme():
+    if os.name == 'posix':
+        # the default scheme for posix is posix_prefix
+        return 'posix_prefix'
+    return os.name
+
+
+def _getuserbase():
+    env_base = os.environ.get("PYTHONUSERBASE", None)
+
+    def joinuser(*args):
+        return os.path.expanduser(os.path.join(*args))
+
+    # what about 'os2emx', 'riscos' ?
+    if os.name == "nt":
+        base = os.environ.get("APPDATA") or "~"
+        if env_base:
+            return env_base
+        else:
+            return joinuser(base, "Python")
+
+    if sys.platform == "darwin":
+        framework = get_config_var("PYTHONFRAMEWORK")
+        if framework:
+            if env_base:
+                return env_base
+            else:
+                return joinuser("~", "Library", framework, "%d.%d" %
+                                sys.version_info[:2])
+
+    if env_base:
+        return env_base
+    else:
+        return joinuser("~", ".local")
+
+
+def _parse_makefile(filename, vars=None):
+    """Parse a Makefile-style file.
+
+    A dictionary containing name/value pairs is returned.  If an
+    optional dictionary is passed in as the second argument, it is
+    used instead of a new dictionary.
+    """
+    # Regexes needed for parsing Makefile (and similar syntaxes,
+    # like old-style Setup files).
+    _variable_rx = re.compile("([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
+    _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
+    _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
+
+    if vars is None:
+        vars = {}
+    done = {}
+    notdone = {}
+
+    with codecs.open(filename, encoding='utf-8', errors="surrogateescape") as f:
+        lines = f.readlines()
+
+    for line in lines:
+        if line.startswith('#') or line.strip() == '':
+            continue
+        m = _variable_rx.match(line)
+        if m:
+            n, v = m.group(1, 2)
+            v = v.strip()
+            # `$$' is a literal `$' in make
+            tmpv = v.replace('$$', '')
+
+            if "$" in tmpv:
+                notdone[n] = v
+            else:
+                try:
+                    v = int(v)
+                except ValueError:
+                    # insert literal `$'
+                    done[n] = v.replace('$$', '$')
+                else:
+                    done[n] = v
+
+    # do variable interpolation here
+    variables = list(notdone.keys())
+
+    # Variables with a 'PY_' prefix in the makefile. These need to
+    # be made available without that prefix through sysconfig.
+    # Special care is needed to ensure that variable expansion works, even
+    # if the expansion uses the name without a prefix.
+    renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS')
+
+    while len(variables) > 0:
+        for name in tuple(variables):
+            value = notdone[name]
+            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
+            if m is not None:
+                n = m.group(1)
+                found = True
+                if n in done:
+                    item = str(done[n])
+                elif n in notdone:
+                    # get it on a subsequent round
+                    found = False
+                elif n in os.environ:
+                    # do it like make: fall back to environment
+                    item = os.environ[n]
+
+                elif n in renamed_variables:
+                    if (name.startswith('PY_') and
+                        name[3:] in renamed_variables):
+                        item = ""
+
+                    elif 'PY_' + n in notdone:
+                        found = False
+
+                    else:
+                        item = str(done['PY_' + n])
+
+                else:
+                    done[n] = item = ""
+
+                if found:
+                    after = value[m.end():]
+                    value = value[:m.start()] + item + after
+                    if "$" in after:
+                        notdone[name] = value
+                    else:
+                        try:
+                            value = int(value)
+                        except ValueError:
+                            done[name] = value.strip()
+                        else:
+                            done[name] = value
+                        variables.remove(name)
+
+                        if (name.startswith('PY_') and
+                            name[3:] in renamed_variables):
+
+                            name = name[3:]
+                            if name not in done:
+                                done[name] = value
+
+            else:
+                # bogus variable reference (e.g. "prefix=$/opt/python");
+                # just drop it since we can't deal
+                done[name] = value
+                variables.remove(name)
+
+    # strip spurious spaces
+    for k, v in done.items():
+        if isinstance(v, str):
+            done[k] = v.strip()
+
+    # save the results in the global dictionary
+    vars.update(done)
+    return vars
+
+
+def get_makefile_filename():
+    """Return the path of the Makefile."""
+    if _PYTHON_BUILD:
+        return os.path.join(_PROJECT_BASE, "Makefile")
+    if hasattr(sys, 'abiflags'):
+        config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
+    else:
+        config_dir_name = 'config'
+    return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile')
+
+
+def _init_posix(vars):
+    """Initialize the module as appropriate for POSIX systems."""
+    # load the installed Makefile:
+    makefile = get_makefile_filename()
+    try:
+        _parse_makefile(makefile, vars)
+    except IOError as e:
+        msg = "invalid Python installation: unable to open %s" % makefile
+        if hasattr(e, "strerror"):
+            msg = msg + " (%s)" % e.strerror
+        raise IOError(msg)
+    # load the installed pyconfig.h:
+    config_h = get_config_h_filename()
+    try:
+        with open(config_h) as f:
+            parse_config_h(f, vars)
+    except IOError as e:
+        msg = "invalid Python installation: unable to open %s" % config_h
+        if hasattr(e, "strerror"):
+            msg = msg + " (%s)" % e.strerror
+        raise IOError(msg)
+    # On AIX, there are wrong paths to the linker scripts in the Makefile
+    # -- these paths are relative to the Python source, but when installed
+    # the scripts are in another directory.
+    if _PYTHON_BUILD:
+        vars['LDSHARED'] = vars['BLDSHARED']
+
+
+def _init_non_posix(vars):
+    """Initialize the module as appropriate for NT"""
+    # set basic install directories
+    vars['LIBDEST'] = get_path('stdlib')
+    vars['BINLIBDEST'] = get_path('platstdlib')
+    vars['INCLUDEPY'] = get_path('include')
+    vars['SO'] = '.pyd'
+    vars['EXE'] = '.exe'
+    vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
+    vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
+
+#
+# public APIs
+#
+
+
+def parse_config_h(fp, vars=None):
+    """Parse a config.h-style file.
+
+    A dictionary containing name/value pairs is returned.  If an
+    optional dictionary is passed in as the second argument, it is
+    used instead of a new dictionary.
+    """
+    if vars is None:
+        vars = {}
+    define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n")
+    undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n")
+
+    while True:
+        line = fp.readline()
+        if not line:
+            break
+        m = define_rx.match(line)
+        if m:
+            n, v = m.group(1, 2)
+            try:
+                v = int(v)
+            except ValueError:
+                pass
+            vars[n] = v
+        else:
+            m = undef_rx.match(line)
+            if m:
+                vars[m.group(1)] = 0
+    return vars
+
+
+def get_config_h_filename():
+    """Return the path of pyconfig.h."""
+    if _PYTHON_BUILD:
+        if os.name == "nt":
+            inc_dir = os.path.join(_PROJECT_BASE, "PC")
+        else:
+            inc_dir = _PROJECT_BASE
+    else:
+        inc_dir = get_path('platinclude')
+    return os.path.join(inc_dir, 'pyconfig.h')
+
+
+def get_scheme_names():
+    """Return a tuple containing the schemes names."""
+    return tuple(sorted(_SCHEMES.sections()))
+
+
+def get_path_names():
+    """Return a tuple containing the paths names."""
+    # xxx see if we want a static list
+    return _SCHEMES.options('posix_prefix')
+
+
+def get_paths(scheme=_get_default_scheme(), vars=None, expand=True):
+    """Return a mapping containing an install scheme.
+
+    ``scheme`` is the install scheme name. If not provided, it will
+    return the default scheme for the current platform.
+    """
+    _ensure_cfg_read()
+    if expand:
+        return _expand_vars(scheme, vars)
+    else:
+        return dict(_SCHEMES.items(scheme))
+
+
+def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True):
+    """Return a path corresponding to the scheme.
+
+    ``scheme`` is the install scheme name.
+    """
+    return get_paths(scheme, vars, expand)[name]
+
+
+def get_config_vars(*args):
+    """With no arguments, return a dictionary of all configuration
+    variables relevant for the current platform.
+
+    On Unix, this means every variable defined in Python's installed Makefile;
+    On Windows and Mac OS it's a much smaller set.
+
+    With arguments, return a list of values that result from looking up
+    each argument in the configuration variable dictionary.
+    """
+    global _CONFIG_VARS
+    if _CONFIG_VARS is None:
+        _CONFIG_VARS = {}
+        # Normalized versions of prefix and exec_prefix are handy to have;
+        # in fact, these are the standard versions used most places in the
+        # distutils2 module.
+        _CONFIG_VARS['prefix'] = _PREFIX
+        _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX
+        _CONFIG_VARS['py_version'] = _PY_VERSION
+        _CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT
+        _CONFIG_VARS['py_version_nodot'] = _PY_VERSION[0] + _PY_VERSION[2]
+        _CONFIG_VARS['base'] = _PREFIX
+        _CONFIG_VARS['platbase'] = _EXEC_PREFIX
+        _CONFIG_VARS['projectbase'] = _PROJECT_BASE
+        try:
+            _CONFIG_VARS['abiflags'] = sys.abiflags
+        except AttributeError:
+            # sys.abiflags may not be defined on all platforms.
+            _CONFIG_VARS['abiflags'] = ''
+
+        if os.name in ('nt', 'os2'):
+            _init_non_posix(_CONFIG_VARS)
+        if os.name == 'posix':
+            _init_posix(_CONFIG_VARS)
+        # Setting 'userbase' is done below the call to the
+        # init function to enable using 'get_config_var' in
+        # the init-function.
+        if sys.version >= '2.6':
+            _CONFIG_VARS['userbase'] = _getuserbase()
+
+        if 'srcdir' not in _CONFIG_VARS:
+            _CONFIG_VARS['srcdir'] = _PROJECT_BASE
+        else:
+            _CONFIG_VARS['srcdir'] = _safe_realpath(_CONFIG_VARS['srcdir'])
+
+        # Convert srcdir into an absolute path if it appears necessary.
+        # Normally it is relative to the build directory.  However, during
+        # testing, for example, we might be running a non-installed python
+        # from a different directory.
+        if _PYTHON_BUILD and os.name == "posix":
+            base = _PROJECT_BASE
+            try:
+                cwd = os.getcwd()
+            except OSError:
+                cwd = None
+            if (not os.path.isabs(_CONFIG_VARS['srcdir']) and
+                base != cwd):
+                # srcdir is relative and we are not in the same directory
+                # as the executable. Assume executable is in the build
+                # directory and make srcdir absolute.
+                srcdir = os.path.join(base, _CONFIG_VARS['srcdir'])
+                _CONFIG_VARS['srcdir'] = os.path.normpath(srcdir)
+
+        if sys.platform == 'darwin':
+            kernel_version = os.uname()[2]  # Kernel version (8.4.3)
+            major_version = int(kernel_version.split('.')[0])
+
+            if major_version < 8:
+                # On macOS before 10.4, check if -arch and -isysroot
+                # are in CFLAGS or LDFLAGS and remove them if they are.
+                # This is needed when building extensions on a 10.3 system
+                # using a universal build of python.
+                for key in ('LDFLAGS', 'BASECFLAGS',
+                        # a number of derived variables. These need to be
+                        # patched up as well.
+                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+                    flags = _CONFIG_VARS[key]
+                    flags = re.sub('-arch\s+\w+\s', ' ', flags)
+                    flags = re.sub('-isysroot [^ \t]*', ' ', flags)
+                    _CONFIG_VARS[key] = flags
+            else:
+                # Allow the user to override the architecture flags using
+                # an environment variable.
+                # NOTE: This name was introduced by Apple in OSX 10.5 and
+                # is used by several scripting languages distributed with
+                # that OS release.
+                if 'ARCHFLAGS' in os.environ:
+                    arch = os.environ['ARCHFLAGS']
+                    for key in ('LDFLAGS', 'BASECFLAGS',
+                        # a number of derived variables. These need to be
+                        # patched up as well.
+                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+
+                        flags = _CONFIG_VARS[key]
+                        flags = re.sub('-arch\s+\w+\s', ' ', flags)
+                        flags = flags + ' ' + arch
+                        _CONFIG_VARS[key] = flags
+
+                # If we're on OSX 10.5 or later and the user tries to
+                # compiles an extension using an SDK that is not present
+                # on the current machine it is better to not use an SDK
+                # than to fail.
+                #
+                # The major usecase for this is users using a Python.org
+                # binary installer  on OSX 10.6: that installer uses
+                # the 10.4u SDK, but that SDK is not installed by default
+                # when you install Xcode.
+                #
+                CFLAGS = _CONFIG_VARS.get('CFLAGS', '')
+                m = re.search('-isysroot\s+(\S+)', CFLAGS)
+                if m is not None:
+                    sdk = m.group(1)
+                    if not os.path.exists(sdk):
+                        for key in ('LDFLAGS', 'BASECFLAGS',
+                             # a number of derived variables. These need to be
+                             # patched up as well.
+                            'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
+
+                            flags = _CONFIG_VARS[key]
+                            flags = re.sub('-isysroot\s+\S+(\s|$)', ' ', flags)
+                            _CONFIG_VARS[key] = flags
+
+    if args:
+        vals = []
+        for name in args:
+            vals.append(_CONFIG_VARS.get(name))
+        return vals
+    else:
+        return _CONFIG_VARS
+
+
+def get_config_var(name):
+    """Return the value of a single variable using the dictionary returned by
+    'get_config_vars()'.
+
+    Equivalent to get_config_vars().get(name)
+    """
+    return get_config_vars().get(name)
+
+
+def get_platform():
+    """Return a string that identifies the current platform.
+
+    This is used mainly to distinguish platform-specific build directories and
+    platform-specific built distributions.  Typically includes the OS name
+    and version and the architecture (as supplied by 'os.uname()'),
+    although the exact information included depends on the OS; eg. for IRIX
+    the architecture isn't particularly important (IRIX only runs on SGI
+    hardware), but for Linux the kernel version isn't particularly
+    important.
+
+    Examples of returned values:
+       linux-i586
+       linux-alpha (?)
+       solaris-2.6-sun4u
+       irix-5.3
+       irix64-6.2
+
+    Windows will return one of:
+       win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
+       win-ia64 (64bit Windows on Itanium)
+       win32 (all others - specifically, sys.platform is returned)
+
+    For other non-POSIX platforms, currently just returns 'sys.platform'.
+    """
+    if os.name == 'nt':
+        # sniff sys.version for architecture.
+        prefix = " bit ("
+        i = sys.version.find(prefix)
+        if i == -1:
+            return sys.platform
+        j = sys.version.find(")", i)
+        look = sys.version[i+len(prefix):j].lower()
+        if look == 'amd64':
+            return 'win-amd64'
+        if look == 'itanium':
+            return 'win-ia64'
+        return sys.platform
+
+    if os.name != "posix" or not hasattr(os, 'uname'):
+        # XXX what about the architecture? NT is Intel or Alpha,
+        # Mac OS is M68k or PPC, etc.
+        return sys.platform
+
+    # Try to distinguish various flavours of Unix
+    osname, host, release, version, machine = os.uname()
+
+    # Convert the OS name to lowercase, remove '/' characters
+    # (to accommodate BSD/OS), and translate spaces (for "Power Macintosh")
+    osname = osname.lower().replace('/', '')
+    machine = machine.replace(' ', '_')
+    machine = machine.replace('/', '-')
+
+    if osname[:5] == "linux":
+        # At least on Linux/Intel, 'machine' is the processor --
+        # i386, etc.
+        # XXX what about Alpha, SPARC, etc?
+        return  "%s-%s" % (osname, machine)
+    elif osname[:5] == "sunos":
+        if release[0] >= "5":           # SunOS 5 == Solaris 2
+            osname = "solaris"
+            release = "%d.%s" % (int(release[0]) - 3, release[2:])
+        # fall through to standard osname-release-machine representation
+    elif osname[:4] == "irix":              # could be "irix64"!
+        return "%s-%s" % (osname, release)
+    elif osname[:3] == "aix":
+        return "%s-%s.%s" % (osname, version, release)
+    elif osname[:6] == "cygwin":
+        osname = "cygwin"
+        rel_re = re.compile(r'[\d.]+')
+        m = rel_re.match(release)
+        if m:
+            release = m.group()
+    elif osname[:6] == "darwin":
+        #
+        # For our purposes, we'll assume that the system version from
+        # distutils' perspective is what MACOSX_DEPLOYMENT_TARGET is set
+        # to. This makes the compatibility story a bit more sane because the
+        # machine is going to compile and link as if it were
+        # MACOSX_DEPLOYMENT_TARGET.
+        cfgvars = get_config_vars()
+        macver = cfgvars.get('MACOSX_DEPLOYMENT_TARGET')
+
+        if True:
+            # Always calculate the release of the running machine,
+            # needed to determine if we can build fat binaries or not.
+
+            macrelease = macver
+            # Get the system version. Reading this plist is a documented
+            # way to get the system version (see the documentation for
+            # the Gestalt Manager)
+            try:
+                f = open('/System/Library/CoreServices/SystemVersion.plist')
+            except IOError:
+                # We're on a plain darwin box, fall back to the default
+                # behaviour.
+                pass
+            else:
+                try:
+                    m = re.search(r'<key>ProductUserVisibleVersion</key>\s*'
+                                  r'<string>(.*?)</string>', f.read())
+                finally:
+                    f.close()
+                if m is not None:
+                    macrelease = '.'.join(m.group(1).split('.')[:2])
+                # else: fall back to the default behaviour
+
+        if not macver:
+            macver = macrelease
+
+        if macver:
+            release = macver
+            osname = "macosx"
+
+            if ((macrelease + '.') >= '10.4.' and
+                '-arch' in get_config_vars().get('CFLAGS', '').strip()):
+                # The universal build will build fat binaries, but not on
+                # systems before 10.4
+                #
+                # Try to detect 4-way universal builds, those have machine-type
+                # 'universal' instead of 'fat'.
+
+                machine = 'fat'
+                cflags = get_config_vars().get('CFLAGS')
+
+                archs = re.findall('-arch\s+(\S+)', cflags)
+                archs = tuple(sorted(set(archs)))
+
+                if len(archs) == 1:
+                    machine = archs[0]
+                elif archs == ('i386', 'ppc'):
+                    machine = 'fat'
+                elif archs == ('i386', 'x86_64'):
+                    machine = 'intel'
+                elif archs == ('i386', 'ppc', 'x86_64'):
+                    machine = 'fat3'
+                elif archs == ('ppc64', 'x86_64'):
+                    machine = 'fat64'
+                elif archs == ('i386', 'ppc', 'ppc64', 'x86_64'):
+                    machine = 'universal'
+                else:
+                    raise ValueError(
+                       "Don't know machine value for archs=%r" % (archs,))
+
+            elif machine == 'i386':
+                # On OSX the machine type returned by uname is always the
+                # 32-bit variant, even if the executable architecture is
+                # the 64-bit variant
+                if sys.maxsize >= 2**32:
+                    machine = 'x86_64'
+
+            elif machine in ('PowerPC', 'Power_Macintosh'):
+                # Pick a sane name for the PPC architecture.
+                # See 'i386' case
+                if sys.maxsize >= 2**32:
+                    machine = 'ppc64'
+                else:
+                    machine = 'ppc'
+
+    return "%s-%s-%s" % (osname, release, machine)
+
+
+def get_python_version():
+    return _PY_VERSION_SHORT
+
+
+def _print_dict(title, data):
+    for index, (key, value) in enumerate(sorted(data.items())):
+        if index == 0:
+            print('%s: ' % (title))
+        print('\t%s = "%s"' % (key, value))
+
+
+def _main():
+    """Display all information sysconfig detains."""
+    print('Platform: "%s"' % get_platform())
+    print('Python version: "%s"' % get_python_version())
+    print('Current installation scheme: "%s"' % _get_default_scheme())
+    print()
+    _print_dict('Paths', get_paths())
+    print()
+    _print_dict('Variables', get_config_vars())
+
+
+if __name__ == '__main__':
+    _main()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/tarfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/tarfile.py
new file mode 100644
index 0000000..d66d856
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/_backport/tarfile.py
@@ -0,0 +1,2607 @@
+#-------------------------------------------------------------------
+# tarfile.py
+#-------------------------------------------------------------------
+# Copyright (C) 2002 Lars Gustaebel <lars@gustaebel.de>
+# All rights reserved.
+#
+# Permission  is  hereby granted,  free  of charge,  to  any person
+# obtaining a  copy of  this software  and associated documentation
+# files  (the  "Software"),  to   deal  in  the  Software   without
+# restriction,  including  without limitation  the  rights to  use,
+# copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies  of  the  Software,  and to  permit  persons  to  whom the
+# Software  is  furnished  to  do  so,  subject  to  the  following
+# conditions:
+#
+# The above copyright  notice and this  permission notice shall  be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS  IS", WITHOUT WARRANTY OF ANY  KIND,
+# EXPRESS OR IMPLIED, INCLUDING  BUT NOT LIMITED TO  THE WARRANTIES
+# OF  MERCHANTABILITY,  FITNESS   FOR  A  PARTICULAR   PURPOSE  AND
+# NONINFRINGEMENT.  IN  NO  EVENT SHALL  THE  AUTHORS  OR COPYRIGHT
+# HOLDERS  BE LIABLE  FOR ANY  CLAIM, DAMAGES  OR OTHER  LIABILITY,
+# WHETHER  IN AN  ACTION OF  CONTRACT, TORT  OR OTHERWISE,  ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+from __future__ import print_function
+
+"""Read from and write to tar format archives.
+"""
+
+__version__ = "$Revision$"
+
+version     = "0.9.0"
+__author__  = "Lars Gust\u00e4bel (lars@gustaebel.de)"
+__date__    = "$Date: 2011-02-25 17:42:01 +0200 (Fri, 25 Feb 2011) $"
+__cvsid__   = "$Id: tarfile.py 88586 2011-02-25 15:42:01Z marc-andre.lemburg $"
+__credits__ = "Gustavo Niemeyer, Niels Gust\u00e4bel, Richard Townsend."
+
+#---------
+# Imports
+#---------
+import sys
+import os
+import stat
+import errno
+import time
+import struct
+import copy
+import re
+
+try:
+    import grp, pwd
+except ImportError:
+    grp = pwd = None
+
+# os.symlink on Windows prior to 6.0 raises NotImplementedError
+symlink_exception = (AttributeError, NotImplementedError)
+try:
+    # WindowsError (1314) will be raised if the caller does not hold the
+    # SeCreateSymbolicLinkPrivilege privilege
+    symlink_exception += (WindowsError,)
+except NameError:
+    pass
+
+# from tarfile import *
+__all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError"]
+
+if sys.version_info[0] < 3:
+    import __builtin__ as builtins
+else:
+    import builtins
+
+_open = builtins.open   # Since 'open' is TarFile.open
+
+#---------------------------------------------------------
+# tar constants
+#---------------------------------------------------------
+NUL = b"\0"                     # the null character
+BLOCKSIZE = 512                 # length of processing blocks
+RECORDSIZE = BLOCKSIZE * 20     # length of records
+GNU_MAGIC = b"ustar  \0"        # magic gnu tar string
+POSIX_MAGIC = b"ustar\x0000"    # magic posix tar string
+
+LENGTH_NAME = 100               # maximum length of a filename
+LENGTH_LINK = 100               # maximum length of a linkname
+LENGTH_PREFIX = 155             # maximum length of the prefix field
+
+REGTYPE = b"0"                  # regular file
+AREGTYPE = b"\0"                # regular file
+LNKTYPE = b"1"                  # link (inside tarfile)
+SYMTYPE = b"2"                  # symbolic link
+CHRTYPE = b"3"                  # character special device
+BLKTYPE = b"4"                  # block special device
+DIRTYPE = b"5"                  # directory
+FIFOTYPE = b"6"                 # fifo special device
+CONTTYPE = b"7"                 # contiguous file
+
+GNUTYPE_LONGNAME = b"L"         # GNU tar longname
+GNUTYPE_LONGLINK = b"K"         # GNU tar longlink
+GNUTYPE_SPARSE = b"S"           # GNU tar sparse file
+
+XHDTYPE = b"x"                  # POSIX.1-2001 extended header
+XGLTYPE = b"g"                  # POSIX.1-2001 global header
+SOLARIS_XHDTYPE = b"X"          # Solaris extended header
+
+USTAR_FORMAT = 0                # POSIX.1-1988 (ustar) format
+GNU_FORMAT = 1                  # GNU tar format
+PAX_FORMAT = 2                  # POSIX.1-2001 (pax) format
+DEFAULT_FORMAT = GNU_FORMAT
+
+#---------------------------------------------------------
+# tarfile constants
+#---------------------------------------------------------
+# File types that tarfile supports:
+SUPPORTED_TYPES = (REGTYPE, AREGTYPE, LNKTYPE,
+                   SYMTYPE, DIRTYPE, FIFOTYPE,
+                   CONTTYPE, CHRTYPE, BLKTYPE,
+                   GNUTYPE_LONGNAME, GNUTYPE_LONGLINK,
+                   GNUTYPE_SPARSE)
+
+# File types that will be treated as a regular file.
+REGULAR_TYPES = (REGTYPE, AREGTYPE,
+                 CONTTYPE, GNUTYPE_SPARSE)
+
+# File types that are part of the GNU tar format.
+GNU_TYPES = (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK,
+             GNUTYPE_SPARSE)
+
+# Fields from a pax header that override a TarInfo attribute.
+PAX_FIELDS = ("path", "linkpath", "size", "mtime",
+              "uid", "gid", "uname", "gname")
+
+# Fields from a pax header that are affected by hdrcharset.
+PAX_NAME_FIELDS = set(("path", "linkpath", "uname", "gname"))
+
+# Fields in a pax header that are numbers, all other fields
+# are treated as strings.
+PAX_NUMBER_FIELDS = {
+    "atime": float,
+    "ctime": float,
+    "mtime": float,
+    "uid": int,
+    "gid": int,
+    "size": int
+}
+
+#---------------------------------------------------------
+# Bits used in the mode field, values in octal.
+#---------------------------------------------------------
+S_IFLNK = 0o120000        # symbolic link
+S_IFREG = 0o100000        # regular file
+S_IFBLK = 0o060000        # block device
+S_IFDIR = 0o040000        # directory
+S_IFCHR = 0o020000        # character device
+S_IFIFO = 0o010000        # fifo
+
+TSUID   = 0o4000          # set UID on execution
+TSGID   = 0o2000          # set GID on execution
+TSVTX   = 0o1000          # reserved
+
+TUREAD  = 0o400           # read by owner
+TUWRITE = 0o200           # write by owner
+TUEXEC  = 0o100           # execute/search by owner
+TGREAD  = 0o040           # read by group
+TGWRITE = 0o020           # write by group
+TGEXEC  = 0o010           # execute/search by group
+TOREAD  = 0o004           # read by other
+TOWRITE = 0o002           # write by other
+TOEXEC  = 0o001           # execute/search by other
+
+#---------------------------------------------------------
+# initialization
+#---------------------------------------------------------
+if os.name in ("nt", "ce"):
+    ENCODING = "utf-8"
+else:
+    ENCODING = sys.getfilesystemencoding()
+
+#---------------------------------------------------------
+# Some useful functions
+#---------------------------------------------------------
+
+def stn(s, length, encoding, errors):
+    """Convert a string to a null-terminated bytes object.
+    """
+    s = s.encode(encoding, errors)
+    return s[:length] + (length - len(s)) * NUL
+
+def nts(s, encoding, errors):
+    """Convert a null-terminated bytes object to a string.
+    """
+    p = s.find(b"\0")
+    if p != -1:
+        s = s[:p]
+    return s.decode(encoding, errors)
+
+def nti(s):
+    """Convert a number field to a python number.
+    """
+    # There are two possible encodings for a number field, see
+    # itn() below.
+    if s[0] != chr(0o200):
+        try:
+            n = int(nts(s, "ascii", "strict") or "0", 8)
+        except ValueError:
+            raise InvalidHeaderError("invalid header")
+    else:
+        n = 0
+        for i in range(len(s) - 1):
+            n <<= 8
+            n += ord(s[i + 1])
+    return n
+
+def itn(n, digits=8, format=DEFAULT_FORMAT):
+    """Convert a python number to a number field.
+    """
+    # POSIX 1003.1-1988 requires numbers to be encoded as a string of
+    # octal digits followed by a null-byte, this allows values up to
+    # (8**(digits-1))-1. GNU tar allows storing numbers greater than
+    # that if necessary. A leading 0o200 byte indicates this particular
+    # encoding, the following digits-1 bytes are a big-endian
+    # representation. This allows values up to (256**(digits-1))-1.
+    if 0 <= n < 8 ** (digits - 1):
+        s = ("%0*o" % (digits - 1, n)).encode("ascii") + NUL
+    else:
+        if format != GNU_FORMAT or n >= 256 ** (digits - 1):
+            raise ValueError("overflow in number field")
+
+        if n < 0:
+            # XXX We mimic GNU tar's behaviour with negative numbers,
+            # this could raise OverflowError.
+            n = struct.unpack("L", struct.pack("l", n))[0]
+
+        s = bytearray()
+        for i in range(digits - 1):
+            s.insert(0, n & 0o377)
+            n >>= 8
+        s.insert(0, 0o200)
+    return s
+
+def calc_chksums(buf):
+    """Calculate the checksum for a member's header by summing up all
+       characters except for the chksum field which is treated as if
+       it was filled with spaces. According to the GNU tar sources,
+       some tars (Sun and NeXT) calculate chksum with signed char,
+       which will be different if there are chars in the buffer with
+       the high bit set. So we calculate two checksums, unsigned and
+       signed.
+    """
+    unsigned_chksum = 256 + sum(struct.unpack("148B", buf[:148]) + struct.unpack("356B", buf[156:512]))
+    signed_chksum = 256 + sum(struct.unpack("148b", buf[:148]) + struct.unpack("356b", buf[156:512]))
+    return unsigned_chksum, signed_chksum
+
+def copyfileobj(src, dst, length=None):
+    """Copy length bytes from fileobj src to fileobj dst.
+       If length is None, copy the entire content.
+    """
+    if length == 0:
+        return
+    if length is None:
+        while True:
+            buf = src.read(16*1024)
+            if not buf:
+                break
+            dst.write(buf)
+        return
+
+    BUFSIZE = 16 * 1024
+    blocks, remainder = divmod(length, BUFSIZE)
+    for b in range(blocks):
+        buf = src.read(BUFSIZE)
+        if len(buf) < BUFSIZE:
+            raise IOError("end of file reached")
+        dst.write(buf)
+
+    if remainder != 0:
+        buf = src.read(remainder)
+        if len(buf) < remainder:
+            raise IOError("end of file reached")
+        dst.write(buf)
+    return
+
+filemode_table = (
+    ((S_IFLNK,      "l"),
+     (S_IFREG,      "-"),
+     (S_IFBLK,      "b"),
+     (S_IFDIR,      "d"),
+     (S_IFCHR,      "c"),
+     (S_IFIFO,      "p")),
+
+    ((TUREAD,       "r"),),
+    ((TUWRITE,      "w"),),
+    ((TUEXEC|TSUID, "s"),
+     (TSUID,        "S"),
+     (TUEXEC,       "x")),
+
+    ((TGREAD,       "r"),),
+    ((TGWRITE,      "w"),),
+    ((TGEXEC|TSGID, "s"),
+     (TSGID,        "S"),
+     (TGEXEC,       "x")),
+
+    ((TOREAD,       "r"),),
+    ((TOWRITE,      "w"),),
+    ((TOEXEC|TSVTX, "t"),
+     (TSVTX,        "T"),
+     (TOEXEC,       "x"))
+)
+
+def filemode(mode):
+    """Convert a file's mode to a string of the form
+       -rwxrwxrwx.
+       Used by TarFile.list()
+    """
+    perm = []
+    for table in filemode_table:
+        for bit, char in table:
+            if mode & bit == bit:
+                perm.append(char)
+                break
+        else:
+            perm.append("-")
+    return "".join(perm)
+
+class TarError(Exception):
+    """Base exception."""
+    pass
+class ExtractError(TarError):
+    """General exception for extract errors."""
+    pass
+class ReadError(TarError):
+    """Exception for unreadable tar archives."""
+    pass
+class CompressionError(TarError):
+    """Exception for unavailable compression methods."""
+    pass
+class StreamError(TarError):
+    """Exception for unsupported operations on stream-like TarFiles."""
+    pass
+class HeaderError(TarError):
+    """Base exception for header errors."""
+    pass
+class EmptyHeaderError(HeaderError):
+    """Exception for empty headers."""
+    pass
+class TruncatedHeaderError(HeaderError):
+    """Exception for truncated headers."""
+    pass
+class EOFHeaderError(HeaderError):
+    """Exception for end of file headers."""
+    pass
+class InvalidHeaderError(HeaderError):
+    """Exception for invalid headers."""
+    pass
+class SubsequentHeaderError(HeaderError):
+    """Exception for missing and invalid extended headers."""
+    pass
+
+#---------------------------
+# internal stream interface
+#---------------------------
+class _LowLevelFile(object):
+    """Low-level file object. Supports reading and writing.
+       It is used instead of a regular file object for streaming
+       access.
+    """
+
+    def __init__(self, name, mode):
+        mode = {
+            "r": os.O_RDONLY,
+            "w": os.O_WRONLY | os.O_CREAT | os.O_TRUNC,
+        }[mode]
+        if hasattr(os, "O_BINARY"):
+            mode |= os.O_BINARY
+        self.fd = os.open(name, mode, 0o666)
+
+    def close(self):
+        os.close(self.fd)
+
+    def read(self, size):
+        return os.read(self.fd, size)
+
+    def write(self, s):
+        os.write(self.fd, s)
+
+class _Stream(object):
+    """Class that serves as an adapter between TarFile and
+       a stream-like object.  The stream-like object only
+       needs to have a read() or write() method and is accessed
+       blockwise.  Use of gzip or bzip2 compression is possible.
+       A stream-like object could be for example: sys.stdin,
+       sys.stdout, a socket, a tape device etc.
+
+       _Stream is intended to be used only internally.
+    """
+
+    def __init__(self, name, mode, comptype, fileobj, bufsize):
+        """Construct a _Stream object.
+        """
+        self._extfileobj = True
+        if fileobj is None:
+            fileobj = _LowLevelFile(name, mode)
+            self._extfileobj = False
+
+        if comptype == '*':
+            # Enable transparent compression detection for the
+            # stream interface
+            fileobj = _StreamProxy(fileobj)
+            comptype = fileobj.getcomptype()
+
+        self.name     = name or ""
+        self.mode     = mode
+        self.comptype = comptype
+        self.fileobj  = fileobj
+        self.bufsize  = bufsize
+        self.buf      = b""
+        self.pos      = 0
+        self.closed   = False
+
+        try:
+            if comptype == "gz":
+                try:
+                    import zlib
+                except ImportError:
+                    raise CompressionError("zlib module is not available")
+                self.zlib = zlib
+                self.crc = zlib.crc32(b"")
+                if mode == "r":
+                    self._init_read_gz()
+                else:
+                    self._init_write_gz()
+
+            if comptype == "bz2":
+                try:
+                    import bz2
+                except ImportError:
+                    raise CompressionError("bz2 module is not available")
+                if mode == "r":
+                    self.dbuf = b""
+                    self.cmp = bz2.BZ2Decompressor()
+                else:
+                    self.cmp = bz2.BZ2Compressor()
+        except:
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+            raise
+
+    def __del__(self):
+        if hasattr(self, "closed") and not self.closed:
+            self.close()
+
+    def _init_write_gz(self):
+        """Initialize for writing with gzip compression.
+        """
+        self.cmp = self.zlib.compressobj(9, self.zlib.DEFLATED,
+                                            -self.zlib.MAX_WBITS,
+                                            self.zlib.DEF_MEM_LEVEL,
+                                            0)
+        timestamp = struct.pack("<L", int(time.time()))
+        self.__write(b"\037\213\010\010" + timestamp + b"\002\377")
+        if self.name.endswith(".gz"):
+            self.name = self.name[:-3]
+        # RFC1952 says we must use ISO-8859-1 for the FNAME field.
+        self.__write(self.name.encode("iso-8859-1", "replace") + NUL)
+
+    def write(self, s):
+        """Write string s to the stream.
+        """
+        if self.comptype == "gz":
+            self.crc = self.zlib.crc32(s, self.crc)
+        self.pos += len(s)
+        if self.comptype != "tar":
+            s = self.cmp.compress(s)
+        self.__write(s)
+
+    def __write(self, s):
+        """Write string s to the stream if a whole new block
+           is ready to be written.
+        """
+        self.buf += s
+        while len(self.buf) > self.bufsize:
+            self.fileobj.write(self.buf[:self.bufsize])
+            self.buf = self.buf[self.bufsize:]
+
+    def close(self):
+        """Close the _Stream object. No operation should be
+           done on it afterwards.
+        """
+        if self.closed:
+            return
+
+        if self.mode == "w" and self.comptype != "tar":
+            self.buf += self.cmp.flush()
+
+        if self.mode == "w" and self.buf:
+            self.fileobj.write(self.buf)
+            self.buf = b""
+            if self.comptype == "gz":
+                # The native zlib crc is an unsigned 32-bit integer, but
+                # the Python wrapper implicitly casts that to a signed C
+                # long.  So, on a 32-bit box self.crc may "look negative",
+                # while the same crc on a 64-bit box may "look positive".
+                # To avoid irksome warnings from the `struct` module, force
+                # it to look positive on all boxes.
+                self.fileobj.write(struct.pack("<L", self.crc & 0xffffffff))
+                self.fileobj.write(struct.pack("<L", self.pos & 0xffffFFFF))
+
+        if not self._extfileobj:
+            self.fileobj.close()
+
+        self.closed = True
+
+    def _init_read_gz(self):
+        """Initialize for reading a gzip compressed fileobj.
+        """
+        self.cmp = self.zlib.decompressobj(-self.zlib.MAX_WBITS)
+        self.dbuf = b""
+
+        # taken from gzip.GzipFile with some alterations
+        if self.__read(2) != b"\037\213":
+            raise ReadError("not a gzip file")
+        if self.__read(1) != b"\010":
+            raise CompressionError("unsupported compression method")
+
+        flag = ord(self.__read(1))
+        self.__read(6)
+
+        if flag & 4:
+            xlen = ord(self.__read(1)) + 256 * ord(self.__read(1))
+            self.read(xlen)
+        if flag & 8:
+            while True:
+                s = self.__read(1)
+                if not s or s == NUL:
+                    break
+        if flag & 16:
+            while True:
+                s = self.__read(1)
+                if not s or s == NUL:
+                    break
+        if flag & 2:
+            self.__read(2)
+
+    def tell(self):
+        """Return the stream's file pointer position.
+        """
+        return self.pos
+
+    def seek(self, pos=0):
+        """Set the stream's file pointer to pos. Negative seeking
+           is forbidden.
+        """
+        if pos - self.pos >= 0:
+            blocks, remainder = divmod(pos - self.pos, self.bufsize)
+            for i in range(blocks):
+                self.read(self.bufsize)
+            self.read(remainder)
+        else:
+            raise StreamError("seeking backwards is not allowed")
+        return self.pos
+
+    def read(self, size=None):
+        """Return the next size number of bytes from the stream.
+           If size is not defined, return all bytes of the stream
+           up to EOF.
+        """
+        if size is None:
+            t = []
+            while True:
+                buf = self._read(self.bufsize)
+                if not buf:
+                    break
+                t.append(buf)
+            buf = "".join(t)
+        else:
+            buf = self._read(size)
+        self.pos += len(buf)
+        return buf
+
+    def _read(self, size):
+        """Return size bytes from the stream.
+        """
+        if self.comptype == "tar":
+            return self.__read(size)
+
+        c = len(self.dbuf)
+        while c < size:
+            buf = self.__read(self.bufsize)
+            if not buf:
+                break
+            try:
+                buf = self.cmp.decompress(buf)
+            except IOError:
+                raise ReadError("invalid compressed data")
+            self.dbuf += buf
+            c += len(buf)
+        buf = self.dbuf[:size]
+        self.dbuf = self.dbuf[size:]
+        return buf
+
+    def __read(self, size):
+        """Return size bytes from stream. If internal buffer is empty,
+           read another block from the stream.
+        """
+        c = len(self.buf)
+        while c < size:
+            buf = self.fileobj.read(self.bufsize)
+            if not buf:
+                break
+            self.buf += buf
+            c += len(buf)
+        buf = self.buf[:size]
+        self.buf = self.buf[size:]
+        return buf
+# class _Stream
+
+class _StreamProxy(object):
+    """Small proxy class that enables transparent compression
+       detection for the Stream interface (mode 'r|*').
+    """
+
+    def __init__(self, fileobj):
+        self.fileobj = fileobj
+        self.buf = self.fileobj.read(BLOCKSIZE)
+
+    def read(self, size):
+        self.read = self.fileobj.read
+        return self.buf
+
+    def getcomptype(self):
+        if self.buf.startswith(b"\037\213\010"):
+            return "gz"
+        if self.buf.startswith(b"BZh91"):
+            return "bz2"
+        return "tar"
+
+    def close(self):
+        self.fileobj.close()
+# class StreamProxy
+
+class _BZ2Proxy(object):
+    """Small proxy class that enables external file object
+       support for "r:bz2" and "w:bz2" modes. This is actually
+       a workaround for a limitation in bz2 module's BZ2File
+       class which (unlike gzip.GzipFile) has no support for
+       a file object argument.
+    """
+
+    blocksize = 16 * 1024
+
+    def __init__(self, fileobj, mode):
+        self.fileobj = fileobj
+        self.mode = mode
+        self.name = getattr(self.fileobj, "name", None)
+        self.init()
+
+    def init(self):
+        import bz2
+        self.pos = 0
+        if self.mode == "r":
+            self.bz2obj = bz2.BZ2Decompressor()
+            self.fileobj.seek(0)
+            self.buf = b""
+        else:
+            self.bz2obj = bz2.BZ2Compressor()
+
+    def read(self, size):
+        x = len(self.buf)
+        while x < size:
+            raw = self.fileobj.read(self.blocksize)
+            if not raw:
+                break
+            data = self.bz2obj.decompress(raw)
+            self.buf += data
+            x += len(data)
+
+        buf = self.buf[:size]
+        self.buf = self.buf[size:]
+        self.pos += len(buf)
+        return buf
+
+    def seek(self, pos):
+        if pos < self.pos:
+            self.init()
+        self.read(pos - self.pos)
+
+    def tell(self):
+        return self.pos
+
+    def write(self, data):
+        self.pos += len(data)
+        raw = self.bz2obj.compress(data)
+        self.fileobj.write(raw)
+
+    def close(self):
+        if self.mode == "w":
+            raw = self.bz2obj.flush()
+            self.fileobj.write(raw)
+# class _BZ2Proxy
+
+#------------------------
+# Extraction file object
+#------------------------
+class _FileInFile(object):
+    """A thin wrapper around an existing file object that
+       provides a part of its data as an individual file
+       object.
+    """
+
+    def __init__(self, fileobj, offset, size, blockinfo=None):
+        self.fileobj = fileobj
+        self.offset = offset
+        self.size = size
+        self.position = 0
+
+        if blockinfo is None:
+            blockinfo = [(0, size)]
+
+        # Construct a map with data and zero blocks.
+        self.map_index = 0
+        self.map = []
+        lastpos = 0
+        realpos = self.offset
+        for offset, size in blockinfo:
+            if offset > lastpos:
+                self.map.append((False, lastpos, offset, None))
+            self.map.append((True, offset, offset + size, realpos))
+            realpos += size
+            lastpos = offset + size
+        if lastpos < self.size:
+            self.map.append((False, lastpos, self.size, None))
+
+    def seekable(self):
+        if not hasattr(self.fileobj, "seekable"):
+            # XXX gzip.GzipFile and bz2.BZ2File
+            return True
+        return self.fileobj.seekable()
+
+    def tell(self):
+        """Return the current file position.
+        """
+        return self.position
+
+    def seek(self, position):
+        """Seek to a position in the file.
+        """
+        self.position = position
+
+    def read(self, size=None):
+        """Read data from the file.
+        """
+        if size is None:
+            size = self.size - self.position
+        else:
+            size = min(size, self.size - self.position)
+
+        buf = b""
+        while size > 0:
+            while True:
+                data, start, stop, offset = self.map[self.map_index]
+                if start <= self.position < stop:
+                    break
+                else:
+                    self.map_index += 1
+                    if self.map_index == len(self.map):
+                        self.map_index = 0
+            length = min(size, stop - self.position)
+            if data:
+                self.fileobj.seek(offset + (self.position - start))
+                buf += self.fileobj.read(length)
+            else:
+                buf += NUL * length
+            size -= length
+            self.position += length
+        return buf
+#class _FileInFile
+
+
+class ExFileObject(object):
+    """File-like object for reading an archive member.
+       Is returned by TarFile.extractfile().
+    """
+    blocksize = 1024
+
+    def __init__(self, tarfile, tarinfo):
+        self.fileobj = _FileInFile(tarfile.fileobj,
+                                   tarinfo.offset_data,
+                                   tarinfo.size,
+                                   tarinfo.sparse)
+        self.name = tarinfo.name
+        self.mode = "r"
+        self.closed = False
+        self.size = tarinfo.size
+
+        self.position = 0
+        self.buffer = b""
+
+    def readable(self):
+        return True
+
+    def writable(self):
+        return False
+
+    def seekable(self):
+        return self.fileobj.seekable()
+
+    def read(self, size=None):
+        """Read at most size bytes from the file. If size is not
+           present or None, read all data until EOF is reached.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        buf = b""
+        if self.buffer:
+            if size is None:
+                buf = self.buffer
+                self.buffer = b""
+            else:
+                buf = self.buffer[:size]
+                self.buffer = self.buffer[size:]
+
+        if size is None:
+            buf += self.fileobj.read()
+        else:
+            buf += self.fileobj.read(size - len(buf))
+
+        self.position += len(buf)
+        return buf
+
+    # XXX TextIOWrapper uses the read1() method.
+    read1 = read
+
+    def readline(self, size=-1):
+        """Read one entire line from the file. If size is present
+           and non-negative, return a string with at most that
+           size, which may be an incomplete line.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        pos = self.buffer.find(b"\n") + 1
+        if pos == 0:
+            # no newline found.
+            while True:
+                buf = self.fileobj.read(self.blocksize)
+                self.buffer += buf
+                if not buf or b"\n" in buf:
+                    pos = self.buffer.find(b"\n") + 1
+                    if pos == 0:
+                        # no newline found.
+                        pos = len(self.buffer)
+                    break
+
+        if size != -1:
+            pos = min(size, pos)
+
+        buf = self.buffer[:pos]
+        self.buffer = self.buffer[pos:]
+        self.position += len(buf)
+        return buf
+
+    def readlines(self):
+        """Return a list with all remaining lines.
+        """
+        result = []
+        while True:
+            line = self.readline()
+            if not line: break
+            result.append(line)
+        return result
+
+    def tell(self):
+        """Return the current file position.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        return self.position
+
+    def seek(self, pos, whence=os.SEEK_SET):
+        """Seek to a position in the file.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed file")
+
+        if whence == os.SEEK_SET:
+            self.position = min(max(pos, 0), self.size)
+        elif whence == os.SEEK_CUR:
+            if pos < 0:
+                self.position = max(self.position + pos, 0)
+            else:
+                self.position = min(self.position + pos, self.size)
+        elif whence == os.SEEK_END:
+            self.position = max(min(self.size + pos, self.size), 0)
+        else:
+            raise ValueError("Invalid argument")
+
+        self.buffer = b""
+        self.fileobj.seek(self.position)
+
+    def close(self):
+        """Close the file object.
+        """
+        self.closed = True
+
+    def __iter__(self):
+        """Get an iterator over the file's lines.
+        """
+        while True:
+            line = self.readline()
+            if not line:
+                break
+            yield line
+#class ExFileObject
+
+#------------------
+# Exported Classes
+#------------------
+class TarInfo(object):
+    """Informational class which holds the details about an
+       archive member given by a tar header block.
+       TarInfo objects are returned by TarFile.getmember(),
+       TarFile.getmembers() and TarFile.gettarinfo() and are
+       usually created internally.
+    """
+
+    __slots__ = ("name", "mode", "uid", "gid", "size", "mtime",
+                 "chksum", "type", "linkname", "uname", "gname",
+                 "devmajor", "devminor",
+                 "offset", "offset_data", "pax_headers", "sparse",
+                 "tarfile", "_sparse_structs", "_link_target")
+
+    def __init__(self, name=""):
+        """Construct a TarInfo object. name is the optional name
+           of the member.
+        """
+        self.name = name        # member name
+        self.mode = 0o644       # file permissions
+        self.uid = 0            # user id
+        self.gid = 0            # group id
+        self.size = 0           # file size
+        self.mtime = 0          # modification time
+        self.chksum = 0         # header checksum
+        self.type = REGTYPE     # member type
+        self.linkname = ""      # link name
+        self.uname = ""         # user name
+        self.gname = ""         # group name
+        self.devmajor = 0       # device major number
+        self.devminor = 0       # device minor number
+
+        self.offset = 0         # the tar header starts here
+        self.offset_data = 0    # the file's data starts here
+
+        self.sparse = None      # sparse member information
+        self.pax_headers = {}   # pax header information
+
+    # In pax headers the "name" and "linkname" field are called
+    # "path" and "linkpath".
+    def _getpath(self):
+        return self.name
+    def _setpath(self, name):
+        self.name = name
+    path = property(_getpath, _setpath)
+
+    def _getlinkpath(self):
+        return self.linkname
+    def _setlinkpath(self, linkname):
+        self.linkname = linkname
+    linkpath = property(_getlinkpath, _setlinkpath)
+
+    def __repr__(self):
+        return "<%s %r at %#x>" % (self.__class__.__name__,self.name,id(self))
+
+    def get_info(self):
+        """Return the TarInfo's attributes as a dictionary.
+        """
+        info = {
+            "name":     self.name,
+            "mode":     self.mode & 0o7777,
+            "uid":      self.uid,
+            "gid":      self.gid,
+            "size":     self.size,
+            "mtime":    self.mtime,
+            "chksum":   self.chksum,
+            "type":     self.type,
+            "linkname": self.linkname,
+            "uname":    self.uname,
+            "gname":    self.gname,
+            "devmajor": self.devmajor,
+            "devminor": self.devminor
+        }
+
+        if info["type"] == DIRTYPE and not info["name"].endswith("/"):
+            info["name"] += "/"
+
+        return info
+
+    def tobuf(self, format=DEFAULT_FORMAT, encoding=ENCODING, errors="surrogateescape"):
+        """Return a tar header as a string of 512 byte blocks.
+        """
+        info = self.get_info()
+
+        if format == USTAR_FORMAT:
+            return self.create_ustar_header(info, encoding, errors)
+        elif format == GNU_FORMAT:
+            return self.create_gnu_header(info, encoding, errors)
+        elif format == PAX_FORMAT:
+            return self.create_pax_header(info, encoding)
+        else:
+            raise ValueError("invalid format")
+
+    def create_ustar_header(self, info, encoding, errors):
+        """Return the object as a ustar header block.
+        """
+        info["magic"] = POSIX_MAGIC
+
+        if len(info["linkname"]) > LENGTH_LINK:
+            raise ValueError("linkname is too long")
+
+        if len(info["name"]) > LENGTH_NAME:
+            info["prefix"], info["name"] = self._posix_split_name(info["name"])
+
+        return self._create_header(info, USTAR_FORMAT, encoding, errors)
+
+    def create_gnu_header(self, info, encoding, errors):
+        """Return the object as a GNU header block sequence.
+        """
+        info["magic"] = GNU_MAGIC
+
+        buf = b""
+        if len(info["linkname"]) > LENGTH_LINK:
+            buf += self._create_gnu_long_header(info["linkname"], GNUTYPE_LONGLINK, encoding, errors)
+
+        if len(info["name"]) > LENGTH_NAME:
+            buf += self._create_gnu_long_header(info["name"], GNUTYPE_LONGNAME, encoding, errors)
+
+        return buf + self._create_header(info, GNU_FORMAT, encoding, errors)
+
+    def create_pax_header(self, info, encoding):
+        """Return the object as a ustar header block. If it cannot be
+           represented this way, prepend a pax extended header sequence
+           with supplement information.
+        """
+        info["magic"] = POSIX_MAGIC
+        pax_headers = self.pax_headers.copy()
+
+        # Test string fields for values that exceed the field length or cannot
+        # be represented in ASCII encoding.
+        for name, hname, length in (
+                ("name", "path", LENGTH_NAME), ("linkname", "linkpath", LENGTH_LINK),
+                ("uname", "uname", 32), ("gname", "gname", 32)):
+
+            if hname in pax_headers:
+                # The pax header has priority.
+                continue
+
+            # Try to encode the string as ASCII.
+            try:
+                info[name].encode("ascii", "strict")
+            except UnicodeEncodeError:
+                pax_headers[hname] = info[name]
+                continue
+
+            if len(info[name]) > length:
+                pax_headers[hname] = info[name]
+
+        # Test number fields for values that exceed the field limit or values
+        # that like to be stored as float.
+        for name, digits in (("uid", 8), ("gid", 8), ("size", 12), ("mtime", 12)):
+            if name in pax_headers:
+                # The pax header has priority. Avoid overflow.
+                info[name] = 0
+                continue
+
+            val = info[name]
+            if not 0 <= val < 8 ** (digits - 1) or isinstance(val, float):
+                pax_headers[name] = str(val)
+                info[name] = 0
+
+        # Create a pax extended header if necessary.
+        if pax_headers:
+            buf = self._create_pax_generic_header(pax_headers, XHDTYPE, encoding)
+        else:
+            buf = b""
+
+        return buf + self._create_header(info, USTAR_FORMAT, "ascii", "replace")
+
+    @classmethod
+    def create_pax_global_header(cls, pax_headers):
+        """Return the object as a pax global header block sequence.
+        """
+        return cls._create_pax_generic_header(pax_headers, XGLTYPE, "utf8")
+
+    def _posix_split_name(self, name):
+        """Split a name longer than 100 chars into a prefix
+           and a name part.
+        """
+        prefix = name[:LENGTH_PREFIX + 1]
+        while prefix and prefix[-1] != "/":
+            prefix = prefix[:-1]
+
+        name = name[len(prefix):]
+        prefix = prefix[:-1]
+
+        if not prefix or len(name) > LENGTH_NAME:
+            raise ValueError("name is too long")
+        return prefix, name
+
+    @staticmethod
+    def _create_header(info, format, encoding, errors):
+        """Return a header block. info is a dictionary with file
+           information, format must be one of the *_FORMAT constants.
+        """
+        parts = [
+            stn(info.get("name", ""), 100, encoding, errors),
+            itn(info.get("mode", 0) & 0o7777, 8, format),
+            itn(info.get("uid", 0), 8, format),
+            itn(info.get("gid", 0), 8, format),
+            itn(info.get("size", 0), 12, format),
+            itn(info.get("mtime", 0), 12, format),
+            b"        ", # checksum field
+            info.get("type", REGTYPE),
+            stn(info.get("linkname", ""), 100, encoding, errors),
+            info.get("magic", POSIX_MAGIC),
+            stn(info.get("uname", ""), 32, encoding, errors),
+            stn(info.get("gname", ""), 32, encoding, errors),
+            itn(info.get("devmajor", 0), 8, format),
+            itn(info.get("devminor", 0), 8, format),
+            stn(info.get("prefix", ""), 155, encoding, errors)
+        ]
+
+        buf = struct.pack("%ds" % BLOCKSIZE, b"".join(parts))
+        chksum = calc_chksums(buf[-BLOCKSIZE:])[0]
+        buf = buf[:-364] + ("%06o\0" % chksum).encode("ascii") + buf[-357:]
+        return buf
+
+    @staticmethod
+    def _create_payload(payload):
+        """Return the string payload filled with zero bytes
+           up to the next 512 byte border.
+        """
+        blocks, remainder = divmod(len(payload), BLOCKSIZE)
+        if remainder > 0:
+            payload += (BLOCKSIZE - remainder) * NUL
+        return payload
+
+    @classmethod
+    def _create_gnu_long_header(cls, name, type, encoding, errors):
+        """Return a GNUTYPE_LONGNAME or GNUTYPE_LONGLINK sequence
+           for name.
+        """
+        name = name.encode(encoding, errors) + NUL
+
+        info = {}
+        info["name"] = "././@LongLink"
+        info["type"] = type
+        info["size"] = len(name)
+        info["magic"] = GNU_MAGIC
+
+        # create extended header + name blocks.
+        return cls._create_header(info, USTAR_FORMAT, encoding, errors) + \
+                cls._create_payload(name)
+
+    @classmethod
+    def _create_pax_generic_header(cls, pax_headers, type, encoding):
+        """Return a POSIX.1-2008 extended or global header sequence
+           that contains a list of keyword, value pairs. The values
+           must be strings.
+        """
+        # Check if one of the fields contains surrogate characters and thereby
+        # forces hdrcharset=BINARY, see _proc_pax() for more information.
+        binary = False
+        for keyword, value in pax_headers.items():
+            try:
+                value.encode("utf8", "strict")
+            except UnicodeEncodeError:
+                binary = True
+                break
+
+        records = b""
+        if binary:
+            # Put the hdrcharset field at the beginning of the header.
+            records += b"21 hdrcharset=BINARY\n"
+
+        for keyword, value in pax_headers.items():
+            keyword = keyword.encode("utf8")
+            if binary:
+                # Try to restore the original byte representation of `value'.
+                # Needless to say, that the encoding must match the string.
+                value = value.encode(encoding, "surrogateescape")
+            else:
+                value = value.encode("utf8")
+
+            l = len(keyword) + len(value) + 3   # ' ' + '=' + '\n'
+            n = p = 0
+            while True:
+                n = l + len(str(p))
+                if n == p:
+                    break
+                p = n
+            records += bytes(str(p), "ascii") + b" " + keyword + b"=" + value + b"\n"
+
+        # We use a hardcoded "././@PaxHeader" name like star does
+        # instead of the one that POSIX recommends.
+        info = {}
+        info["name"] = "././@PaxHeader"
+        info["type"] = type
+        info["size"] = len(records)
+        info["magic"] = POSIX_MAGIC
+
+        # Create pax header + record blocks.
+        return cls._create_header(info, USTAR_FORMAT, "ascii", "replace") + \
+                cls._create_payload(records)
+
+    @classmethod
+    def frombuf(cls, buf, encoding, errors):
+        """Construct a TarInfo object from a 512 byte bytes object.
+        """
+        if len(buf) == 0:
+            raise EmptyHeaderError("empty header")
+        if len(buf) != BLOCKSIZE:
+            raise TruncatedHeaderError("truncated header")
+        if buf.count(NUL) == BLOCKSIZE:
+            raise EOFHeaderError("end of file header")
+
+        chksum = nti(buf[148:156])
+        if chksum not in calc_chksums(buf):
+            raise InvalidHeaderError("bad checksum")
+
+        obj = cls()
+        obj.name = nts(buf[0:100], encoding, errors)
+        obj.mode = nti(buf[100:108])
+        obj.uid = nti(buf[108:116])
+        obj.gid = nti(buf[116:124])
+        obj.size = nti(buf[124:136])
+        obj.mtime = nti(buf[136:148])
+        obj.chksum = chksum
+        obj.type = buf[156:157]
+        obj.linkname = nts(buf[157:257], encoding, errors)
+        obj.uname = nts(buf[265:297], encoding, errors)
+        obj.gname = nts(buf[297:329], encoding, errors)
+        obj.devmajor = nti(buf[329:337])
+        obj.devminor = nti(buf[337:345])
+        prefix = nts(buf[345:500], encoding, errors)
+
+        # Old V7 tar format represents a directory as a regular
+        # file with a trailing slash.
+        if obj.type == AREGTYPE and obj.name.endswith("/"):
+            obj.type = DIRTYPE
+
+        # The old GNU sparse format occupies some of the unused
+        # space in the buffer for up to 4 sparse structures.
+        # Save the them for later processing in _proc_sparse().
+        if obj.type == GNUTYPE_SPARSE:
+            pos = 386
+            structs = []
+            for i in range(4):
+                try:
+                    offset = nti(buf[pos:pos + 12])
+                    numbytes = nti(buf[pos + 12:pos + 24])
+                except ValueError:
+                    break
+                structs.append((offset, numbytes))
+                pos += 24
+            isextended = bool(buf[482])
+            origsize = nti(buf[483:495])
+            obj._sparse_structs = (structs, isextended, origsize)
+
+        # Remove redundant slashes from directories.
+        if obj.isdir():
+            obj.name = obj.name.rstrip("/")
+
+        # Reconstruct a ustar longname.
+        if prefix and obj.type not in GNU_TYPES:
+            obj.name = prefix + "/" + obj.name
+        return obj
+
+    @classmethod
+    def fromtarfile(cls, tarfile):
+        """Return the next TarInfo object from TarFile object
+           tarfile.
+        """
+        buf = tarfile.fileobj.read(BLOCKSIZE)
+        obj = cls.frombuf(buf, tarfile.encoding, tarfile.errors)
+        obj.offset = tarfile.fileobj.tell() - BLOCKSIZE
+        return obj._proc_member(tarfile)
+
+    #--------------------------------------------------------------------------
+    # The following are methods that are called depending on the type of a
+    # member. The entry point is _proc_member() which can be overridden in a
+    # subclass to add custom _proc_*() methods. A _proc_*() method MUST
+    # implement the following
+    # operations:
+    # 1. Set self.offset_data to the position where the data blocks begin,
+    #    if there is data that follows.
+    # 2. Set tarfile.offset to the position where the next member's header will
+    #    begin.
+    # 3. Return self or another valid TarInfo object.
+    def _proc_member(self, tarfile):
+        """Choose the right processing method depending on
+           the type and call it.
+        """
+        if self.type in (GNUTYPE_LONGNAME, GNUTYPE_LONGLINK):
+            return self._proc_gnulong(tarfile)
+        elif self.type == GNUTYPE_SPARSE:
+            return self._proc_sparse(tarfile)
+        elif self.type in (XHDTYPE, XGLTYPE, SOLARIS_XHDTYPE):
+            return self._proc_pax(tarfile)
+        else:
+            return self._proc_builtin(tarfile)
+
+    def _proc_builtin(self, tarfile):
+        """Process a builtin type or an unknown type which
+           will be treated as a regular file.
+        """
+        self.offset_data = tarfile.fileobj.tell()
+        offset = self.offset_data
+        if self.isreg() or self.type not in SUPPORTED_TYPES:
+            # Skip the following data blocks.
+            offset += self._block(self.size)
+        tarfile.offset = offset
+
+        # Patch the TarInfo object with saved global
+        # header information.
+        self._apply_pax_info(tarfile.pax_headers, tarfile.encoding, tarfile.errors)
+
+        return self
+
+    def _proc_gnulong(self, tarfile):
+        """Process the blocks that hold a GNU longname
+           or longlink member.
+        """
+        buf = tarfile.fileobj.read(self._block(self.size))
+
+        # Fetch the next header and process it.
+        try:
+            next = self.fromtarfile(tarfile)
+        except HeaderError:
+            raise SubsequentHeaderError("missing or bad subsequent header")
+
+        # Patch the TarInfo object from the next header with
+        # the longname information.
+        next.offset = self.offset
+        if self.type == GNUTYPE_LONGNAME:
+            next.name = nts(buf, tarfile.encoding, tarfile.errors)
+        elif self.type == GNUTYPE_LONGLINK:
+            next.linkname = nts(buf, tarfile.encoding, tarfile.errors)
+
+        return next
+
+    def _proc_sparse(self, tarfile):
+        """Process a GNU sparse header plus extra headers.
+        """
+        # We already collected some sparse structures in frombuf().
+        structs, isextended, origsize = self._sparse_structs
+        del self._sparse_structs
+
+        # Collect sparse structures from extended header blocks.
+        while isextended:
+            buf = tarfile.fileobj.read(BLOCKSIZE)
+            pos = 0
+            for i in range(21):
+                try:
+                    offset = nti(buf[pos:pos + 12])
+                    numbytes = nti(buf[pos + 12:pos + 24])
+                except ValueError:
+                    break
+                if offset and numbytes:
+                    structs.append((offset, numbytes))
+                pos += 24
+            isextended = bool(buf[504])
+        self.sparse = structs
+
+        self.offset_data = tarfile.fileobj.tell()
+        tarfile.offset = self.offset_data + self._block(self.size)
+        self.size = origsize
+        return self
+
+    def _proc_pax(self, tarfile):
+        """Process an extended or global header as described in
+           POSIX.1-2008.
+        """
+        # Read the header information.
+        buf = tarfile.fileobj.read(self._block(self.size))
+
+        # A pax header stores supplemental information for either
+        # the following file (extended) or all following files
+        # (global).
+        if self.type == XGLTYPE:
+            pax_headers = tarfile.pax_headers
+        else:
+            pax_headers = tarfile.pax_headers.copy()
+
+        # Check if the pax header contains a hdrcharset field. This tells us
+        # the encoding of the path, linkpath, uname and gname fields. Normally,
+        # these fields are UTF-8 encoded but since POSIX.1-2008 tar
+        # implementations are allowed to store them as raw binary strings if
+        # the translation to UTF-8 fails.
+        match = re.search(br"\d+ hdrcharset=([^\n]+)\n", buf)
+        if match is not None:
+            pax_headers["hdrcharset"] = match.group(1).decode("utf8")
+
+        # For the time being, we don't care about anything other than "BINARY".
+        # The only other value that is currently allowed by the standard is
+        # "ISO-IR 10646 2000 UTF-8" in other words UTF-8.
+        hdrcharset = pax_headers.get("hdrcharset")
+        if hdrcharset == "BINARY":
+            encoding = tarfile.encoding
+        else:
+            encoding = "utf8"
+
+        # Parse pax header information. A record looks like that:
+        # "%d %s=%s\n" % (length, keyword, value). length is the size
+        # of the complete record including the length field itself and
+        # the newline. keyword and value are both UTF-8 encoded strings.
+        regex = re.compile(br"(\d+) ([^=]+)=")
+        pos = 0
+        while True:
+            match = regex.match(buf, pos)
+            if not match:
+                break
+
+            length, keyword = match.groups()
+            length = int(length)
+            value = buf[match.end(2) + 1:match.start(1) + length - 1]
+
+            # Normally, we could just use "utf8" as the encoding and "strict"
+            # as the error handler, but we better not take the risk. For
+            # example, GNU tar <= 1.23 is known to store filenames it cannot
+            # translate to UTF-8 as raw strings (unfortunately without a
+            # hdrcharset=BINARY header).
+            # We first try the strict standard encoding, and if that fails we
+            # fall back on the user's encoding and error handler.
+            keyword = self._decode_pax_field(keyword, "utf8", "utf8",
+                    tarfile.errors)
+            if keyword in PAX_NAME_FIELDS:
+                value = self._decode_pax_field(value, encoding, tarfile.encoding,
+                        tarfile.errors)
+            else:
+                value = self._decode_pax_field(value, "utf8", "utf8",
+                        tarfile.errors)
+
+            pax_headers[keyword] = value
+            pos += length
+
+        # Fetch the next header.
+        try:
+            next = self.fromtarfile(tarfile)
+        except HeaderError:
+            raise SubsequentHeaderError("missing or bad subsequent header")
+
+        # Process GNU sparse information.
+        if "GNU.sparse.map" in pax_headers:
+            # GNU extended sparse format version 0.1.
+            self._proc_gnusparse_01(next, pax_headers)
+
+        elif "GNU.sparse.size" in pax_headers:
+            # GNU extended sparse format version 0.0.
+            self._proc_gnusparse_00(next, pax_headers, buf)
+
+        elif pax_headers.get("GNU.sparse.major") == "1" and pax_headers.get("GNU.sparse.minor") == "0":
+            # GNU extended sparse format version 1.0.
+            self._proc_gnusparse_10(next, pax_headers, tarfile)
+
+        if self.type in (XHDTYPE, SOLARIS_XHDTYPE):
+            # Patch the TarInfo object with the extended header info.
+            next._apply_pax_info(pax_headers, tarfile.encoding, tarfile.errors)
+            next.offset = self.offset
+
+            if "size" in pax_headers:
+                # If the extended header replaces the size field,
+                # we need to recalculate the offset where the next
+                # header starts.
+                offset = next.offset_data
+                if next.isreg() or next.type not in SUPPORTED_TYPES:
+                    offset += next._block(next.size)
+                tarfile.offset = offset
+
+        return next
+
+    def _proc_gnusparse_00(self, next, pax_headers, buf):
+        """Process a GNU tar extended sparse header, version 0.0.
+        """
+        offsets = []
+        for match in re.finditer(br"\d+ GNU.sparse.offset=(\d+)\n", buf):
+            offsets.append(int(match.group(1)))
+        numbytes = []
+        for match in re.finditer(br"\d+ GNU.sparse.numbytes=(\d+)\n", buf):
+            numbytes.append(int(match.group(1)))
+        next.sparse = list(zip(offsets, numbytes))
+
+    def _proc_gnusparse_01(self, next, pax_headers):
+        """Process a GNU tar extended sparse header, version 0.1.
+        """
+        sparse = [int(x) for x in pax_headers["GNU.sparse.map"].split(",")]
+        next.sparse = list(zip(sparse[::2], sparse[1::2]))
+
+    def _proc_gnusparse_10(self, next, pax_headers, tarfile):
+        """Process a GNU tar extended sparse header, version 1.0.
+        """
+        fields = None
+        sparse = []
+        buf = tarfile.fileobj.read(BLOCKSIZE)
+        fields, buf = buf.split(b"\n", 1)
+        fields = int(fields)
+        while len(sparse) < fields * 2:
+            if b"\n" not in buf:
+                buf += tarfile.fileobj.read(BLOCKSIZE)
+            number, buf = buf.split(b"\n", 1)
+            sparse.append(int(number))
+        next.offset_data = tarfile.fileobj.tell()
+        next.sparse = list(zip(sparse[::2], sparse[1::2]))
+
+    def _apply_pax_info(self, pax_headers, encoding, errors):
+        """Replace fields with supplemental information from a previous
+           pax extended or global header.
+        """
+        for keyword, value in pax_headers.items():
+            if keyword == "GNU.sparse.name":
+                setattr(self, "path", value)
+            elif keyword == "GNU.sparse.size":
+                setattr(self, "size", int(value))
+            elif keyword == "GNU.sparse.realsize":
+                setattr(self, "size", int(value))
+            elif keyword in PAX_FIELDS:
+                if keyword in PAX_NUMBER_FIELDS:
+                    try:
+                        value = PAX_NUMBER_FIELDS[keyword](value)
+                    except ValueError:
+                        value = 0
+                if keyword == "path":
+                    value = value.rstrip("/")
+                setattr(self, keyword, value)
+
+        self.pax_headers = pax_headers.copy()
+
+    def _decode_pax_field(self, value, encoding, fallback_encoding, fallback_errors):
+        """Decode a single field from a pax record.
+        """
+        try:
+            return value.decode(encoding, "strict")
+        except UnicodeDecodeError:
+            return value.decode(fallback_encoding, fallback_errors)
+
+    def _block(self, count):
+        """Round up a byte count by BLOCKSIZE and return it,
+           e.g. _block(834) => 1024.
+        """
+        blocks, remainder = divmod(count, BLOCKSIZE)
+        if remainder:
+            blocks += 1
+        return blocks * BLOCKSIZE
+
+    def isreg(self):
+        return self.type in REGULAR_TYPES
+    def isfile(self):
+        return self.isreg()
+    def isdir(self):
+        return self.type == DIRTYPE
+    def issym(self):
+        return self.type == SYMTYPE
+    def islnk(self):
+        return self.type == LNKTYPE
+    def ischr(self):
+        return self.type == CHRTYPE
+    def isblk(self):
+        return self.type == BLKTYPE
+    def isfifo(self):
+        return self.type == FIFOTYPE
+    def issparse(self):
+        return self.sparse is not None
+    def isdev(self):
+        return self.type in (CHRTYPE, BLKTYPE, FIFOTYPE)
+# class TarInfo
+
+class TarFile(object):
+    """The TarFile Class provides an interface to tar archives.
+    """
+
+    debug = 0                   # May be set from 0 (no msgs) to 3 (all msgs)
+
+    dereference = False         # If true, add content of linked file to the
+                                # tar file, else the link.
+
+    ignore_zeros = False        # If true, skips empty or invalid blocks and
+                                # continues processing.
+
+    errorlevel = 1              # If 0, fatal errors only appear in debug
+                                # messages (if debug >= 0). If > 0, errors
+                                # are passed to the caller as exceptions.
+
+    format = DEFAULT_FORMAT     # The format to use when creating an archive.
+
+    encoding = ENCODING         # Encoding for 8-bit character strings.
+
+    errors = None               # Error handler for unicode conversion.
+
+    tarinfo = TarInfo           # The default TarInfo class to use.
+
+    fileobject = ExFileObject   # The default ExFileObject class to use.
+
+    def __init__(self, name=None, mode="r", fileobj=None, format=None,
+            tarinfo=None, dereference=None, ignore_zeros=None, encoding=None,
+            errors="surrogateescape", pax_headers=None, debug=None, errorlevel=None):
+        """Open an (uncompressed) tar archive `name'. `mode' is either 'r' to
+           read from an existing archive, 'a' to append data to an existing
+           file or 'w' to create a new file overwriting an existing one. `mode'
+           defaults to 'r'.
+           If `fileobj' is given, it is used for reading or writing data. If it
+           can be determined, `mode' is overridden by `fileobj's mode.
+           `fileobj' is not closed, when TarFile is closed.
+        """
+        if len(mode) > 1 or mode not in "raw":
+            raise ValueError("mode must be 'r', 'a' or 'w'")
+        self.mode = mode
+        self._mode = {"r": "rb", "a": "r+b", "w": "wb"}[mode]
+
+        if not fileobj:
+            if self.mode == "a" and not os.path.exists(name):
+                # Create nonexistent files in append mode.
+                self.mode = "w"
+                self._mode = "wb"
+            fileobj = bltn_open(name, self._mode)
+            self._extfileobj = False
+        else:
+            if name is None and hasattr(fileobj, "name"):
+                name = fileobj.name
+            if hasattr(fileobj, "mode"):
+                self._mode = fileobj.mode
+            self._extfileobj = True
+        self.name = os.path.abspath(name) if name else None
+        self.fileobj = fileobj
+
+        # Init attributes.
+        if format is not None:
+            self.format = format
+        if tarinfo is not None:
+            self.tarinfo = tarinfo
+        if dereference is not None:
+            self.dereference = dereference
+        if ignore_zeros is not None:
+            self.ignore_zeros = ignore_zeros
+        if encoding is not None:
+            self.encoding = encoding
+        self.errors = errors
+
+        if pax_headers is not None and self.format == PAX_FORMAT:
+            self.pax_headers = pax_headers
+        else:
+            self.pax_headers = {}
+
+        if debug is not None:
+            self.debug = debug
+        if errorlevel is not None:
+            self.errorlevel = errorlevel
+
+        # Init datastructures.
+        self.closed = False
+        self.members = []       # list of members as TarInfo objects
+        self._loaded = False    # flag if all members have been read
+        self.offset = self.fileobj.tell()
+                                # current position in the archive file
+        self.inodes = {}        # dictionary caching the inodes of
+                                # archive members already added
+
+        try:
+            if self.mode == "r":
+                self.firstmember = None
+                self.firstmember = self.next()
+
+            if self.mode == "a":
+                # Move to the end of the archive,
+                # before the first empty block.
+                while True:
+                    self.fileobj.seek(self.offset)
+                    try:
+                        tarinfo = self.tarinfo.fromtarfile(self)
+                        self.members.append(tarinfo)
+                    except EOFHeaderError:
+                        self.fileobj.seek(self.offset)
+                        break
+                    except HeaderError as e:
+                        raise ReadError(str(e))
+
+            if self.mode in "aw":
+                self._loaded = True
+
+                if self.pax_headers:
+                    buf = self.tarinfo.create_pax_global_header(self.pax_headers.copy())
+                    self.fileobj.write(buf)
+                    self.offset += len(buf)
+        except:
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+            raise
+
+    #--------------------------------------------------------------------------
+    # Below are the classmethods which act as alternate constructors to the
+    # TarFile class. The open() method is the only one that is needed for
+    # public use; it is the "super"-constructor and is able to select an
+    # adequate "sub"-constructor for a particular compression using the mapping
+    # from OPEN_METH.
+    #
+    # This concept allows one to subclass TarFile without losing the comfort of
+    # the super-constructor. A sub-constructor is registered and made available
+    # by adding it to the mapping in OPEN_METH.
+
+    @classmethod
+    def open(cls, name=None, mode="r", fileobj=None, bufsize=RECORDSIZE, **kwargs):
+        """Open a tar archive for reading, writing or appending. Return
+           an appropriate TarFile class.
+
+           mode:
+           'r' or 'r:*' open for reading with transparent compression
+           'r:'         open for reading exclusively uncompressed
+           'r:gz'       open for reading with gzip compression
+           'r:bz2'      open for reading with bzip2 compression
+           'a' or 'a:'  open for appending, creating the file if necessary
+           'w' or 'w:'  open for writing without compression
+           'w:gz'       open for writing with gzip compression
+           'w:bz2'      open for writing with bzip2 compression
+
+           'r|*'        open a stream of tar blocks with transparent compression
+           'r|'         open an uncompressed stream of tar blocks for reading
+           'r|gz'       open a gzip compressed stream of tar blocks
+           'r|bz2'      open a bzip2 compressed stream of tar blocks
+           'w|'         open an uncompressed stream for writing
+           'w|gz'       open a gzip compressed stream for writing
+           'w|bz2'      open a bzip2 compressed stream for writing
+        """
+
+        if not name and not fileobj:
+            raise ValueError("nothing to open")
+
+        if mode in ("r", "r:*"):
+            # Find out which *open() is appropriate for opening the file.
+            for comptype in cls.OPEN_METH:
+                func = getattr(cls, cls.OPEN_METH[comptype])
+                if fileobj is not None:
+                    saved_pos = fileobj.tell()
+                try:
+                    return func(name, "r", fileobj, **kwargs)
+                except (ReadError, CompressionError) as e:
+                    if fileobj is not None:
+                        fileobj.seek(saved_pos)
+                    continue
+            raise ReadError("file could not be opened successfully")
+
+        elif ":" in mode:
+            filemode, comptype = mode.split(":", 1)
+            filemode = filemode or "r"
+            comptype = comptype or "tar"
+
+            # Select the *open() function according to
+            # given compression.
+            if comptype in cls.OPEN_METH:
+                func = getattr(cls, cls.OPEN_METH[comptype])
+            else:
+                raise CompressionError("unknown compression type %r" % comptype)
+            return func(name, filemode, fileobj, **kwargs)
+
+        elif "|" in mode:
+            filemode, comptype = mode.split("|", 1)
+            filemode = filemode or "r"
+            comptype = comptype or "tar"
+
+            if filemode not in "rw":
+                raise ValueError("mode must be 'r' or 'w'")
+
+            stream = _Stream(name, filemode, comptype, fileobj, bufsize)
+            try:
+                t = cls(name, filemode, stream, **kwargs)
+            except:
+                stream.close()
+                raise
+            t._extfileobj = False
+            return t
+
+        elif mode in "aw":
+            return cls.taropen(name, mode, fileobj, **kwargs)
+
+        raise ValueError("undiscernible mode")
+
+    @classmethod
+    def taropen(cls, name, mode="r", fileobj=None, **kwargs):
+        """Open uncompressed tar archive name for reading or writing.
+        """
+        if len(mode) > 1 or mode not in "raw":
+            raise ValueError("mode must be 'r', 'a' or 'w'")
+        return cls(name, mode, fileobj, **kwargs)
+
+    @classmethod
+    def gzopen(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
+        """Open gzip compressed tar archive name for reading or writing.
+           Appending is not allowed.
+        """
+        if len(mode) > 1 or mode not in "rw":
+            raise ValueError("mode must be 'r' or 'w'")
+
+        try:
+            import gzip
+            gzip.GzipFile
+        except (ImportError, AttributeError):
+            raise CompressionError("gzip module is not available")
+
+        extfileobj = fileobj is not None
+        try:
+            fileobj = gzip.GzipFile(name, mode + "b", compresslevel, fileobj)
+            t = cls.taropen(name, mode, fileobj, **kwargs)
+        except IOError:
+            if not extfileobj and fileobj is not None:
+                fileobj.close()
+            if fileobj is None:
+                raise
+            raise ReadError("not a gzip file")
+        except:
+            if not extfileobj and fileobj is not None:
+                fileobj.close()
+            raise
+        t._extfileobj = extfileobj
+        return t
+
+    @classmethod
+    def bz2open(cls, name, mode="r", fileobj=None, compresslevel=9, **kwargs):
+        """Open bzip2 compressed tar archive name for reading or writing.
+           Appending is not allowed.
+        """
+        if len(mode) > 1 or mode not in "rw":
+            raise ValueError("mode must be 'r' or 'w'.")
+
+        try:
+            import bz2
+        except ImportError:
+            raise CompressionError("bz2 module is not available")
+
+        if fileobj is not None:
+            fileobj = _BZ2Proxy(fileobj, mode)
+        else:
+            fileobj = bz2.BZ2File(name, mode, compresslevel=compresslevel)
+
+        try:
+            t = cls.taropen(name, mode, fileobj, **kwargs)
+        except (IOError, EOFError):
+            fileobj.close()
+            raise ReadError("not a bzip2 file")
+        t._extfileobj = False
+        return t
+
+    # All *open() methods are registered here.
+    OPEN_METH = {
+        "tar": "taropen",   # uncompressed tar
+        "gz":  "gzopen",    # gzip compressed tar
+        "bz2": "bz2open"    # bzip2 compressed tar
+    }
+
+    #--------------------------------------------------------------------------
+    # The public methods which TarFile provides:
+
+    def close(self):
+        """Close the TarFile. In write-mode, two finishing zero blocks are
+           appended to the archive.
+        """
+        if self.closed:
+            return
+
+        if self.mode in "aw":
+            self.fileobj.write(NUL * (BLOCKSIZE * 2))
+            self.offset += (BLOCKSIZE * 2)
+            # fill up the end with zero-blocks
+            # (like option -b20 for tar does)
+            blocks, remainder = divmod(self.offset, RECORDSIZE)
+            if remainder > 0:
+                self.fileobj.write(NUL * (RECORDSIZE - remainder))
+
+        if not self._extfileobj:
+            self.fileobj.close()
+        self.closed = True
+
+    def getmember(self, name):
+        """Return a TarInfo object for member `name'. If `name' can not be
+           found in the archive, KeyError is raised. If a member occurs more
+           than once in the archive, its last occurrence is assumed to be the
+           most up-to-date version.
+        """
+        tarinfo = self._getmember(name)
+        if tarinfo is None:
+            raise KeyError("filename %r not found" % name)
+        return tarinfo
+
+    def getmembers(self):
+        """Return the members of the archive as a list of TarInfo objects. The
+           list has the same order as the members in the archive.
+        """
+        self._check()
+        if not self._loaded:    # if we want to obtain a list of
+            self._load()        # all members, we first have to
+                                # scan the whole archive.
+        return self.members
+
+    def getnames(self):
+        """Return the members of the archive as a list of their names. It has
+           the same order as the list returned by getmembers().
+        """
+        return [tarinfo.name for tarinfo in self.getmembers()]
+
+    def gettarinfo(self, name=None, arcname=None, fileobj=None):
+        """Create a TarInfo object for either the file `name' or the file
+           object `fileobj' (using os.fstat on its file descriptor). You can
+           modify some of the TarInfo's attributes before you add it using
+           addfile(). If given, `arcname' specifies an alternative name for the
+           file in the archive.
+        """
+        self._check("aw")
+
+        # When fileobj is given, replace name by
+        # fileobj's real name.
+        if fileobj is not None:
+            name = fileobj.name
+
+        # Building the name of the member in the archive.
+        # Backward slashes are converted to forward slashes,
+        # Absolute paths are turned to relative paths.
+        if arcname is None:
+            arcname = name
+        drv, arcname = os.path.splitdrive(arcname)
+        arcname = arcname.replace(os.sep, "/")
+        arcname = arcname.lstrip("/")
+
+        # Now, fill the TarInfo object with
+        # information specific for the file.
+        tarinfo = self.tarinfo()
+        tarinfo.tarfile = self
+
+        # Use os.stat or os.lstat, depending on platform
+        # and if symlinks shall be resolved.
+        if fileobj is None:
+            if hasattr(os, "lstat") and not self.dereference:
+                statres = os.lstat(name)
+            else:
+                statres = os.stat(name)
+        else:
+            statres = os.fstat(fileobj.fileno())
+        linkname = ""
+
+        stmd = statres.st_mode
+        if stat.S_ISREG(stmd):
+            inode = (statres.st_ino, statres.st_dev)
+            if not self.dereference and statres.st_nlink > 1 and \
+                    inode in self.inodes and arcname != self.inodes[inode]:
+                # Is it a hardlink to an already
+                # archived file?
+                type = LNKTYPE
+                linkname = self.inodes[inode]
+            else:
+                # The inode is added only if its valid.
+                # For win32 it is always 0.
+                type = REGTYPE
+                if inode[0]:
+                    self.inodes[inode] = arcname
+        elif stat.S_ISDIR(stmd):
+            type = DIRTYPE
+        elif stat.S_ISFIFO(stmd):
+            type = FIFOTYPE
+        elif stat.S_ISLNK(stmd):
+            type = SYMTYPE
+            linkname = os.readlink(name)
+        elif stat.S_ISCHR(stmd):
+            type = CHRTYPE
+        elif stat.S_ISBLK(stmd):
+            type = BLKTYPE
+        else:
+            return None
+
+        # Fill the TarInfo object with all
+        # information we can get.
+        tarinfo.name = arcname
+        tarinfo.mode = stmd
+        tarinfo.uid = statres.st_uid
+        tarinfo.gid = statres.st_gid
+        if type == REGTYPE:
+            tarinfo.size = statres.st_size
+        else:
+            tarinfo.size = 0
+        tarinfo.mtime = statres.st_mtime
+        tarinfo.type = type
+        tarinfo.linkname = linkname
+        if pwd:
+            try:
+                tarinfo.uname = pwd.getpwuid(tarinfo.uid)[0]
+            except KeyError:
+                pass
+        if grp:
+            try:
+                tarinfo.gname = grp.getgrgid(tarinfo.gid)[0]
+            except KeyError:
+                pass
+
+        if type in (CHRTYPE, BLKTYPE):
+            if hasattr(os, "major") and hasattr(os, "minor"):
+                tarinfo.devmajor = os.major(statres.st_rdev)
+                tarinfo.devminor = os.minor(statres.st_rdev)
+        return tarinfo
+
+    def list(self, verbose=True):
+        """Print a table of contents to sys.stdout. If `verbose' is False, only
+           the names of the members are printed. If it is True, an `ls -l'-like
+           output is produced.
+        """
+        self._check()
+
+        for tarinfo in self:
+            if verbose:
+                print(filemode(tarinfo.mode), end=' ')
+                print("%s/%s" % (tarinfo.uname or tarinfo.uid,
+                                 tarinfo.gname or tarinfo.gid), end=' ')
+                if tarinfo.ischr() or tarinfo.isblk():
+                    print("%10s" % ("%d,%d" \
+                                    % (tarinfo.devmajor, tarinfo.devminor)), end=' ')
+                else:
+                    print("%10d" % tarinfo.size, end=' ')
+                print("%d-%02d-%02d %02d:%02d:%02d" \
+                      % time.localtime(tarinfo.mtime)[:6], end=' ')
+
+            print(tarinfo.name + ("/" if tarinfo.isdir() else ""), end=' ')
+
+            if verbose:
+                if tarinfo.issym():
+                    print("->", tarinfo.linkname, end=' ')
+                if tarinfo.islnk():
+                    print("link to", tarinfo.linkname, end=' ')
+            print()
+
+    def add(self, name, arcname=None, recursive=True, exclude=None, filter=None):
+        """Add the file `name' to the archive. `name' may be any type of file
+           (directory, fifo, symbolic link, etc.). If given, `arcname'
+           specifies an alternative name for the file in the archive.
+           Directories are added recursively by default. This can be avoided by
+           setting `recursive' to False. `exclude' is a function that should
+           return True for each filename to be excluded. `filter' is a function
+           that expects a TarInfo object argument and returns the changed
+           TarInfo object, if it returns None the TarInfo object will be
+           excluded from the archive.
+        """
+        self._check("aw")
+
+        if arcname is None:
+            arcname = name
+
+        # Exclude pathnames.
+        if exclude is not None:
+            import warnings
+            warnings.warn("use the filter argument instead",
+                    DeprecationWarning, 2)
+            if exclude(name):
+                self._dbg(2, "tarfile: Excluded %r" % name)
+                return
+
+        # Skip if somebody tries to archive the archive...
+        if self.name is not None and os.path.abspath(name) == self.name:
+            self._dbg(2, "tarfile: Skipped %r" % name)
+            return
+
+        self._dbg(1, name)
+
+        # Create a TarInfo object from the file.
+        tarinfo = self.gettarinfo(name, arcname)
+
+        if tarinfo is None:
+            self._dbg(1, "tarfile: Unsupported type %r" % name)
+            return
+
+        # Change or exclude the TarInfo object.
+        if filter is not None:
+            tarinfo = filter(tarinfo)
+            if tarinfo is None:
+                self._dbg(2, "tarfile: Excluded %r" % name)
+                return
+
+        # Append the tar header and data to the archive.
+        if tarinfo.isreg():
+            f = bltn_open(name, "rb")
+            self.addfile(tarinfo, f)
+            f.close()
+
+        elif tarinfo.isdir():
+            self.addfile(tarinfo)
+            if recursive:
+                for f in os.listdir(name):
+                    self.add(os.path.join(name, f), os.path.join(arcname, f),
+                            recursive, exclude, filter=filter)
+
+        else:
+            self.addfile(tarinfo)
+
+    def addfile(self, tarinfo, fileobj=None):
+        """Add the TarInfo object `tarinfo' to the archive. If `fileobj' is
+           given, tarinfo.size bytes are read from it and added to the archive.
+           You can create TarInfo objects using gettarinfo().
+           On Windows platforms, `fileobj' should always be opened with mode
+           'rb' to avoid irritation about the file size.
+        """
+        self._check("aw")
+
+        tarinfo = copy.copy(tarinfo)
+
+        buf = tarinfo.tobuf(self.format, self.encoding, self.errors)
+        self.fileobj.write(buf)
+        self.offset += len(buf)
+
+        # If there's data to follow, append it.
+        if fileobj is not None:
+            copyfileobj(fileobj, self.fileobj, tarinfo.size)
+            blocks, remainder = divmod(tarinfo.size, BLOCKSIZE)
+            if remainder > 0:
+                self.fileobj.write(NUL * (BLOCKSIZE - remainder))
+                blocks += 1
+            self.offset += blocks * BLOCKSIZE
+
+        self.members.append(tarinfo)
+
+    def extractall(self, path=".", members=None):
+        """Extract all members from the archive to the current working
+           directory and set owner, modification time and permissions on
+           directories afterwards. `path' specifies a different directory
+           to extract to. `members' is optional and must be a subset of the
+           list returned by getmembers().
+        """
+        directories = []
+
+        if members is None:
+            members = self
+
+        for tarinfo in members:
+            if tarinfo.isdir():
+                # Extract directories with a safe mode.
+                directories.append(tarinfo)
+                tarinfo = copy.copy(tarinfo)
+                tarinfo.mode = 0o700
+            # Do not set_attrs directories, as we will do that further down
+            self.extract(tarinfo, path, set_attrs=not tarinfo.isdir())
+
+        # Reverse sort directories.
+        directories.sort(key=lambda a: a.name)
+        directories.reverse()
+
+        # Set correct owner, mtime and filemode on directories.
+        for tarinfo in directories:
+            dirpath = os.path.join(path, tarinfo.name)
+            try:
+                self.chown(tarinfo, dirpath)
+                self.utime(tarinfo, dirpath)
+                self.chmod(tarinfo, dirpath)
+            except ExtractError as e:
+                if self.errorlevel > 1:
+                    raise
+                else:
+                    self._dbg(1, "tarfile: %s" % e)
+
+    def extract(self, member, path="", set_attrs=True):
+        """Extract a member from the archive to the current working directory,
+           using its full name. Its file information is extracted as accurately
+           as possible. `member' may be a filename or a TarInfo object. You can
+           specify a different directory using `path'. File attributes (owner,
+           mtime, mode) are set unless `set_attrs' is False.
+        """
+        self._check("r")
+
+        if isinstance(member, str):
+            tarinfo = self.getmember(member)
+        else:
+            tarinfo = member
+
+        # Prepare the link target for makelink().
+        if tarinfo.islnk():
+            tarinfo._link_target = os.path.join(path, tarinfo.linkname)
+
+        try:
+            self._extract_member(tarinfo, os.path.join(path, tarinfo.name),
+                                 set_attrs=set_attrs)
+        except EnvironmentError as e:
+            if self.errorlevel > 0:
+                raise
+            else:
+                if e.filename is None:
+                    self._dbg(1, "tarfile: %s" % e.strerror)
+                else:
+                    self._dbg(1, "tarfile: %s %r" % (e.strerror, e.filename))
+        except ExtractError as e:
+            if self.errorlevel > 1:
+                raise
+            else:
+                self._dbg(1, "tarfile: %s" % e)
+
+    def extractfile(self, member):
+        """Extract a member from the archive as a file object. `member' may be
+           a filename or a TarInfo object. If `member' is a regular file, a
+           file-like object is returned. If `member' is a link, a file-like
+           object is constructed from the link's target. If `member' is none of
+           the above, None is returned.
+           The file-like object is read-only and provides the following
+           methods: read(), readline(), readlines(), seek() and tell()
+        """
+        self._check("r")
+
+        if isinstance(member, str):
+            tarinfo = self.getmember(member)
+        else:
+            tarinfo = member
+
+        if tarinfo.isreg():
+            return self.fileobject(self, tarinfo)
+
+        elif tarinfo.type not in SUPPORTED_TYPES:
+            # If a member's type is unknown, it is treated as a
+            # regular file.
+            return self.fileobject(self, tarinfo)
+
+        elif tarinfo.islnk() or tarinfo.issym():
+            if isinstance(self.fileobj, _Stream):
+                # A small but ugly workaround for the case that someone tries
+                # to extract a (sym)link as a file-object from a non-seekable
+                # stream of tar blocks.
+                raise StreamError("cannot extract (sym)link as file object")
+            else:
+                # A (sym)link's file object is its target's file object.
+                return self.extractfile(self._find_link_target(tarinfo))
+        else:
+            # If there's no data associated with the member (directory, chrdev,
+            # blkdev, etc.), return None instead of a file object.
+            return None
+
+    def _extract_member(self, tarinfo, targetpath, set_attrs=True):
+        """Extract the TarInfo object tarinfo to a physical
+           file called targetpath.
+        """
+        # Fetch the TarInfo object for the given name
+        # and build the destination pathname, replacing
+        # forward slashes to platform specific separators.
+        targetpath = targetpath.rstrip("/")
+        targetpath = targetpath.replace("/", os.sep)
+
+        # Create all upper directories.
+        upperdirs = os.path.dirname(targetpath)
+        if upperdirs and not os.path.exists(upperdirs):
+            # Create directories that are not part of the archive with
+            # default permissions.
+            os.makedirs(upperdirs)
+
+        if tarinfo.islnk() or tarinfo.issym():
+            self._dbg(1, "%s -> %s" % (tarinfo.name, tarinfo.linkname))
+        else:
+            self._dbg(1, tarinfo.name)
+
+        if tarinfo.isreg():
+            self.makefile(tarinfo, targetpath)
+        elif tarinfo.isdir():
+            self.makedir(tarinfo, targetpath)
+        elif tarinfo.isfifo():
+            self.makefifo(tarinfo, targetpath)
+        elif tarinfo.ischr() or tarinfo.isblk():
+            self.makedev(tarinfo, targetpath)
+        elif tarinfo.islnk() or tarinfo.issym():
+            self.makelink(tarinfo, targetpath)
+        elif tarinfo.type not in SUPPORTED_TYPES:
+            self.makeunknown(tarinfo, targetpath)
+        else:
+            self.makefile(tarinfo, targetpath)
+
+        if set_attrs:
+            self.chown(tarinfo, targetpath)
+            if not tarinfo.issym():
+                self.chmod(tarinfo, targetpath)
+                self.utime(tarinfo, targetpath)
+
+    #--------------------------------------------------------------------------
+    # Below are the different file methods. They are called via
+    # _extract_member() when extract() is called. They can be replaced in a
+    # subclass to implement other functionality.
+
+    def makedir(self, tarinfo, targetpath):
+        """Make a directory called targetpath.
+        """
+        try:
+            # Use a safe mode for the directory, the real mode is set
+            # later in _extract_member().
+            os.mkdir(targetpath, 0o700)
+        except EnvironmentError as e:
+            if e.errno != errno.EEXIST:
+                raise
+
+    def makefile(self, tarinfo, targetpath):
+        """Make a file called targetpath.
+        """
+        source = self.fileobj
+        source.seek(tarinfo.offset_data)
+        target = bltn_open(targetpath, "wb")
+        if tarinfo.sparse is not None:
+            for offset, size in tarinfo.sparse:
+                target.seek(offset)
+                copyfileobj(source, target, size)
+        else:
+            copyfileobj(source, target, tarinfo.size)
+        target.seek(tarinfo.size)
+        target.truncate()
+        target.close()
+
+    def makeunknown(self, tarinfo, targetpath):
+        """Make a file from a TarInfo object with an unknown type
+           at targetpath.
+        """
+        self.makefile(tarinfo, targetpath)
+        self._dbg(1, "tarfile: Unknown file type %r, " \
+                     "extracted as regular file." % tarinfo.type)
+
+    def makefifo(self, tarinfo, targetpath):
+        """Make a fifo called targetpath.
+        """
+        if hasattr(os, "mkfifo"):
+            os.mkfifo(targetpath)
+        else:
+            raise ExtractError("fifo not supported by system")
+
+    def makedev(self, tarinfo, targetpath):
+        """Make a character or block device called targetpath.
+        """
+        if not hasattr(os, "mknod") or not hasattr(os, "makedev"):
+            raise ExtractError("special devices not supported by system")
+
+        mode = tarinfo.mode
+        if tarinfo.isblk():
+            mode |= stat.S_IFBLK
+        else:
+            mode |= stat.S_IFCHR
+
+        os.mknod(targetpath, mode,
+                 os.makedev(tarinfo.devmajor, tarinfo.devminor))
+
+    def makelink(self, tarinfo, targetpath):
+        """Make a (symbolic) link called targetpath. If it cannot be created
+          (platform limitation), we try to make a copy of the referenced file
+          instead of a link.
+        """
+        try:
+            # For systems that support symbolic and hard links.
+            if tarinfo.issym():
+                os.symlink(tarinfo.linkname, targetpath)
+            else:
+                # See extract().
+                if os.path.exists(tarinfo._link_target):
+                    os.link(tarinfo._link_target, targetpath)
+                else:
+                    self._extract_member(self._find_link_target(tarinfo),
+                                         targetpath)
+        except symlink_exception:
+            if tarinfo.issym():
+                linkpath = os.path.join(os.path.dirname(tarinfo.name),
+                                        tarinfo.linkname)
+            else:
+                linkpath = tarinfo.linkname
+        else:
+            try:
+                self._extract_member(self._find_link_target(tarinfo),
+                                     targetpath)
+            except KeyError:
+                raise ExtractError("unable to resolve link inside archive")
+
+    def chown(self, tarinfo, targetpath):
+        """Set owner of targetpath according to tarinfo.
+        """
+        if pwd and hasattr(os, "geteuid") and os.geteuid() == 0:
+            # We have to be root to do so.
+            try:
+                g = grp.getgrnam(tarinfo.gname)[2]
+            except KeyError:
+                g = tarinfo.gid
+            try:
+                u = pwd.getpwnam(tarinfo.uname)[2]
+            except KeyError:
+                u = tarinfo.uid
+            try:
+                if tarinfo.issym() and hasattr(os, "lchown"):
+                    os.lchown(targetpath, u, g)
+                else:
+                    if sys.platform != "os2emx":
+                        os.chown(targetpath, u, g)
+            except EnvironmentError as e:
+                raise ExtractError("could not change owner")
+
+    def chmod(self, tarinfo, targetpath):
+        """Set file permissions of targetpath according to tarinfo.
+        """
+        if hasattr(os, 'chmod'):
+            try:
+                os.chmod(targetpath, tarinfo.mode)
+            except EnvironmentError as e:
+                raise ExtractError("could not change mode")
+
+    def utime(self, tarinfo, targetpath):
+        """Set modification time of targetpath according to tarinfo.
+        """
+        if not hasattr(os, 'utime'):
+            return
+        try:
+            os.utime(targetpath, (tarinfo.mtime, tarinfo.mtime))
+        except EnvironmentError as e:
+            raise ExtractError("could not change modification time")
+
+    #--------------------------------------------------------------------------
+    def next(self):
+        """Return the next member of the archive as a TarInfo object, when
+           TarFile is opened for reading. Return None if there is no more
+           available.
+        """
+        self._check("ra")
+        if self.firstmember is not None:
+            m = self.firstmember
+            self.firstmember = None
+            return m
+
+        # Read the next block.
+        self.fileobj.seek(self.offset)
+        tarinfo = None
+        while True:
+            try:
+                tarinfo = self.tarinfo.fromtarfile(self)
+            except EOFHeaderError as e:
+                if self.ignore_zeros:
+                    self._dbg(2, "0x%X: %s" % (self.offset, e))
+                    self.offset += BLOCKSIZE
+                    continue
+            except InvalidHeaderError as e:
+                if self.ignore_zeros:
+                    self._dbg(2, "0x%X: %s" % (self.offset, e))
+                    self.offset += BLOCKSIZE
+                    continue
+                elif self.offset == 0:
+                    raise ReadError(str(e))
+            except EmptyHeaderError:
+                if self.offset == 0:
+                    raise ReadError("empty file")
+            except TruncatedHeaderError as e:
+                if self.offset == 0:
+                    raise ReadError(str(e))
+            except SubsequentHeaderError as e:
+                raise ReadError(str(e))
+            break
+
+        if tarinfo is not None:
+            self.members.append(tarinfo)
+        else:
+            self._loaded = True
+
+        return tarinfo
+
+    #--------------------------------------------------------------------------
+    # Little helper methods:
+
+    def _getmember(self, name, tarinfo=None, normalize=False):
+        """Find an archive member by name from bottom to top.
+           If tarinfo is given, it is used as the starting point.
+        """
+        # Ensure that all members have been loaded.
+        members = self.getmembers()
+
+        # Limit the member search list up to tarinfo.
+        if tarinfo is not None:
+            members = members[:members.index(tarinfo)]
+
+        if normalize:
+            name = os.path.normpath(name)
+
+        for member in reversed(members):
+            if normalize:
+                member_name = os.path.normpath(member.name)
+            else:
+                member_name = member.name
+
+            if name == member_name:
+                return member
+
+    def _load(self):
+        """Read through the entire archive file and look for readable
+           members.
+        """
+        while True:
+            tarinfo = self.next()
+            if tarinfo is None:
+                break
+        self._loaded = True
+
+    def _check(self, mode=None):
+        """Check if TarFile is still open, and if the operation's mode
+           corresponds to TarFile's mode.
+        """
+        if self.closed:
+            raise IOError("%s is closed" % self.__class__.__name__)
+        if mode is not None and self.mode not in mode:
+            raise IOError("bad operation for mode %r" % self.mode)
+
+    def _find_link_target(self, tarinfo):
+        """Find the target member of a symlink or hardlink member in the
+           archive.
+        """
+        if tarinfo.issym():
+            # Always search the entire archive.
+            linkname = os.path.dirname(tarinfo.name) + "/" + tarinfo.linkname
+            limit = None
+        else:
+            # Search the archive before the link, because a hard link is
+            # just a reference to an already archived file.
+            linkname = tarinfo.linkname
+            limit = tarinfo
+
+        member = self._getmember(linkname, tarinfo=limit, normalize=True)
+        if member is None:
+            raise KeyError("linkname %r not found" % linkname)
+        return member
+
+    def __iter__(self):
+        """Provide an iterator object.
+        """
+        if self._loaded:
+            return iter(self.members)
+        else:
+            return TarIter(self)
+
+    def _dbg(self, level, msg):
+        """Write debugging output to sys.stderr.
+        """
+        if level <= self.debug:
+            print(msg, file=sys.stderr)
+
+    def __enter__(self):
+        self._check()
+        return self
+
+    def __exit__(self, type, value, traceback):
+        if type is None:
+            self.close()
+        else:
+            # An exception occurred. We must not call close() because
+            # it would try to write end-of-archive blocks and padding.
+            if not self._extfileobj:
+                self.fileobj.close()
+            self.closed = True
+# class TarFile
+
+class TarIter(object):
+    """Iterator Class.
+
+       for tarinfo in TarFile(...):
+           suite...
+    """
+
+    def __init__(self, tarfile):
+        """Construct a TarIter object.
+        """
+        self.tarfile = tarfile
+        self.index = 0
+    def __iter__(self):
+        """Return iterator object.
+        """
+        return self
+
+    def __next__(self):
+        """Return the next item using TarFile's next() method.
+           When all members have been read, set TarFile as _loaded.
+        """
+        # Fix for SF #1100429: Under rare circumstances it can
+        # happen that getmembers() is called during iteration,
+        # which will cause TarIter to stop prematurely.
+        if not self.tarfile._loaded:
+            tarinfo = self.tarfile.next()
+            if not tarinfo:
+                self.tarfile._loaded = True
+                raise StopIteration
+        else:
+            try:
+                tarinfo = self.tarfile.members[self.index]
+            except IndexError:
+                raise StopIteration
+        self.index += 1
+        return tarinfo
+
+    next = __next__ # for Python 2.x
+
+#--------------------
+# exported functions
+#--------------------
+def is_tarfile(name):
+    """Return True if name points to a tar archive that we
+       are able to handle, else return False.
+    """
+    try:
+        t = open(name)
+        t.close()
+        return True
+    except TarError:
+        return False
+
+bltn_open = open
+open = TarFile.open
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/compat.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/compat.py
new file mode 100644
index 0000000..2b198dd
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/compat.py
@@ -0,0 +1,1111 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2016 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from __future__ import absolute_import
+
+import os
+import re
+import sys
+
+try:
+    import ssl
+except ImportError:
+    ssl = None
+
+if sys.version_info[0] < 3:  # pragma: no cover
+    from StringIO import StringIO
+    string_types = basestring,
+    text_type = unicode
+    from types import FileType as file_type
+    import __builtin__ as builtins
+    import ConfigParser as configparser
+    from ._backport import shutil
+    from urlparse import urlparse, urlunparse, urljoin, urlsplit, urlunsplit
+    from urllib import (urlretrieve, quote as _quote, unquote, url2pathname,
+                        pathname2url, ContentTooShortError, splittype)
+
+    def quote(s):
+        if isinstance(s, unicode):
+            s = s.encode('utf-8')
+        return _quote(s)
+
+    import urllib2
+    from urllib2 import (Request, urlopen, URLError, HTTPError,
+                         HTTPBasicAuthHandler, HTTPPasswordMgr,
+                         HTTPHandler, HTTPRedirectHandler,
+                         build_opener)
+    if ssl:
+        from urllib2 import HTTPSHandler
+    import httplib
+    import xmlrpclib
+    import Queue as queue
+    from HTMLParser import HTMLParser
+    import htmlentitydefs
+    raw_input = raw_input
+    from itertools import ifilter as filter
+    from itertools import ifilterfalse as filterfalse
+
+    _userprog = None
+    def splituser(host):
+        """splituser('user[:passwd]@host[:port]') --> 'user[:passwd]', 'host[:port]'."""
+        global _userprog
+        if _userprog is None:
+            import re
+            _userprog = re.compile('^(.*)@(.*)$')
+
+        match = _userprog.match(host)
+        if match: return match.group(1, 2)
+        return None, host
+
+else:  # pragma: no cover
+    from io import StringIO
+    string_types = str,
+    text_type = str
+    from io import TextIOWrapper as file_type
+    import builtins
+    import configparser
+    import shutil
+    from urllib.parse import (urlparse, urlunparse, urljoin, splituser, quote,
+                              unquote, urlsplit, urlunsplit, splittype)
+    from urllib.request import (urlopen, urlretrieve, Request, url2pathname,
+                                pathname2url,
+                                HTTPBasicAuthHandler, HTTPPasswordMgr,
+                                HTTPHandler, HTTPRedirectHandler,
+                                build_opener)
+    if ssl:
+        from urllib.request import HTTPSHandler
+    from urllib.error import HTTPError, URLError, ContentTooShortError
+    import http.client as httplib
+    import urllib.request as urllib2
+    import xmlrpc.client as xmlrpclib
+    import queue
+    from html.parser import HTMLParser
+    import html.entities as htmlentitydefs
+    raw_input = input
+    from itertools import filterfalse
+    filter = filter
+
+try:
+    from ssl import match_hostname, CertificateError
+except ImportError: # pragma: no cover
+    class CertificateError(ValueError):
+        pass
+
+
+    def _dnsname_match(dn, hostname, max_wildcards=1):
+        """Matching according to RFC 6125, section 6.4.3
+
+        http://tools.ietf.org/html/rfc6125#section-6.4.3
+        """
+        pats = []
+        if not dn:
+            return False
+
+        parts = dn.split('.')
+        leftmost, remainder = parts[0], parts[1:]
+
+        wildcards = leftmost.count('*')
+        if wildcards > max_wildcards:
+            # Issue #17980: avoid denials of service by refusing more
+            # than one wildcard per fragment.  A survey of established
+            # policy among SSL implementations showed it to be a
+            # reasonable choice.
+            raise CertificateError(
+                "too many wildcards in certificate DNS name: " + repr(dn))
+
+        # speed up common case w/o wildcards
+        if not wildcards:
+            return dn.lower() == hostname.lower()
+
+        # RFC 6125, section 6.4.3, subitem 1.
+        # The client SHOULD NOT attempt to match a presented identifier in which
+        # the wildcard character comprises a label other than the left-most label.
+        if leftmost == '*':
+            # When '*' is a fragment by itself, it matches a non-empty dotless
+            # fragment.
+            pats.append('[^.]+')
+        elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+            # RFC 6125, section 6.4.3, subitem 3.
+            # The client SHOULD NOT attempt to match a presented identifier
+            # where the wildcard character is embedded within an A-label or
+            # U-label of an internationalized domain name.
+            pats.append(re.escape(leftmost))
+        else:
+            # Otherwise, '*' matches any dotless string, e.g. www*
+            pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+        # add the remaining fragments, ignore any wildcards
+        for frag in remainder:
+            pats.append(re.escape(frag))
+
+        pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+        return pat.match(hostname)
+
+
+    def match_hostname(cert, hostname):
+        """Verify that *cert* (in decoded format as returned by
+        SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+        rules are followed, but IP addresses are not accepted for *hostname*.
+
+        CertificateError is raised on failure. On success, the function
+        returns nothing.
+        """
+        if not cert:
+            raise ValueError("empty or no certificate, match_hostname needs a "
+                             "SSL socket or SSL context with either "
+                             "CERT_OPTIONAL or CERT_REQUIRED")
+        dnsnames = []
+        san = cert.get('subjectAltName', ())
+        for key, value in san:
+            if key == 'DNS':
+                if _dnsname_match(value, hostname):
+                    return
+                dnsnames.append(value)
+        if not dnsnames:
+            # The subject is only checked when there is no dNSName entry
+            # in subjectAltName
+            for sub in cert.get('subject', ()):
+                for key, value in sub:
+                    # XXX according to RFC 2818, the most specific Common Name
+                    # must be used.
+                    if key == 'commonName':
+                        if _dnsname_match(value, hostname):
+                            return
+                        dnsnames.append(value)
+        if len(dnsnames) > 1:
+            raise CertificateError("hostname %r "
+                "doesn't match either of %s"
+                % (hostname, ', '.join(map(repr, dnsnames))))
+        elif len(dnsnames) == 1:
+            raise CertificateError("hostname %r "
+                "doesn't match %r"
+                % (hostname, dnsnames[0]))
+        else:
+            raise CertificateError("no appropriate commonName or "
+                "subjectAltName fields were found")
+
+
+try:
+    from types import SimpleNamespace as Container
+except ImportError:  # pragma: no cover
+    class Container(object):
+        """
+        A generic container for when multiple values need to be returned
+        """
+        def __init__(self, **kwargs):
+            self.__dict__.update(kwargs)
+
+
+try:
+    from shutil import which
+except ImportError:  # pragma: no cover
+    # Implementation from Python 3.3
+    def which(cmd, mode=os.F_OK | os.X_OK, path=None):
+        """Given a command, mode, and a PATH string, return the path which
+        conforms to the given mode on the PATH, or None if there is no such
+        file.
+
+        `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result
+        of os.environ.get("PATH"), or can be overridden with a custom search
+        path.
+
+        """
+        # Check that a given file can be accessed with the correct mode.
+        # Additionally check that `file` is not a directory, as on Windows
+        # directories pass the os.access check.
+        def _access_check(fn, mode):
+            return (os.path.exists(fn) and os.access(fn, mode)
+                    and not os.path.isdir(fn))
+
+        # If we're given a path with a directory part, look it up directly rather
+        # than referring to PATH directories. This includes checking relative to the
+        # current directory, e.g. ./script
+        if os.path.dirname(cmd):
+            if _access_check(cmd, mode):
+                return cmd
+            return None
+
+        if path is None:
+            path = os.environ.get("PATH", os.defpath)
+        if not path:
+            return None
+        path = path.split(os.pathsep)
+
+        if sys.platform == "win32":
+            # The current directory takes precedence on Windows.
+            if not os.curdir in path:
+                path.insert(0, os.curdir)
+
+            # PATHEXT is necessary to check on Windows.
+            pathext = os.environ.get("PATHEXT", "").split(os.pathsep)
+            # See if the given file matches any of the expected path extensions.
+            # This will allow us to short circuit when given "python.exe".
+            # If it does match, only test that one, otherwise we have to try
+            # others.
+            if any(cmd.lower().endswith(ext.lower()) for ext in pathext):
+                files = [cmd]
+            else:
+                files = [cmd + ext for ext in pathext]
+        else:
+            # On other platforms you don't have things like PATHEXT to tell you
+            # what file suffixes are executable, so just pass on cmd as-is.
+            files = [cmd]
+
+        seen = set()
+        for dir in path:
+            normdir = os.path.normcase(dir)
+            if not normdir in seen:
+                seen.add(normdir)
+                for thefile in files:
+                    name = os.path.join(dir, thefile)
+                    if _access_check(name, mode):
+                        return name
+        return None
+
+
+# ZipFile is a context manager in 2.7, but not in 2.6
+
+from zipfile import ZipFile as BaseZipFile
+
+if hasattr(BaseZipFile, '__enter__'):  # pragma: no cover
+    ZipFile = BaseZipFile
+else:
+    from zipfile import ZipExtFile as BaseZipExtFile
+
+    class ZipExtFile(BaseZipExtFile):
+        def __init__(self, base):
+            self.__dict__.update(base.__dict__)
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *exc_info):
+            self.close()
+            # return None, so if an exception occurred, it will propagate
+
+    class ZipFile(BaseZipFile):
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *exc_info):
+            self.close()
+            # return None, so if an exception occurred, it will propagate
+
+        def open(self, *args, **kwargs):
+            base = BaseZipFile.open(self, *args, **kwargs)
+            return ZipExtFile(base)
+
+try:
+    from platform import python_implementation
+except ImportError: # pragma: no cover
+    def python_implementation():
+        """Return a string identifying the Python implementation."""
+        if 'PyPy' in sys.version:
+            return 'PyPy'
+        if os.name == 'java':
+            return 'Jython'
+        if sys.version.startswith('IronPython'):
+            return 'IronPython'
+        return 'CPython'
+
+try:
+    import sysconfig
+except ImportError: # pragma: no cover
+    from ._backport import sysconfig
+
+try:
+    callable = callable
+except NameError:   # pragma: no cover
+    from collections import Callable
+
+    def callable(obj):
+        return isinstance(obj, Callable)
+
+
+try:
+    fsencode = os.fsencode
+    fsdecode = os.fsdecode
+except AttributeError:  # pragma: no cover
+    _fsencoding = sys.getfilesystemencoding()
+    if _fsencoding == 'mbcs':
+        _fserrors = 'strict'
+    else:
+        _fserrors = 'surrogateescape'
+
+    def fsencode(filename):
+        if isinstance(filename, bytes):
+            return filename
+        elif isinstance(filename, text_type):
+            return filename.encode(_fsencoding, _fserrors)
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
+
+    def fsdecode(filename):
+        if isinstance(filename, text_type):
+            return filename
+        elif isinstance(filename, bytes):
+            return filename.decode(_fsencoding, _fserrors)
+        else:
+            raise TypeError("expect bytes or str, not %s" %
+                            type(filename).__name__)
+
+try:
+    from tokenize import detect_encoding
+except ImportError: # pragma: no cover
+    from codecs import BOM_UTF8, lookup
+    import re
+
+    cookie_re = re.compile("coding[:=]\s*([-\w.]+)")
+
+    def _get_normal_name(orig_enc):
+        """Imitates get_normal_name in tokenizer.c."""
+        # Only care about the first 12 characters.
+        enc = orig_enc[:12].lower().replace("_", "-")
+        if enc == "utf-8" or enc.startswith("utf-8-"):
+            return "utf-8"
+        if enc in ("latin-1", "iso-8859-1", "iso-latin-1") or \
+           enc.startswith(("latin-1-", "iso-8859-1-", "iso-latin-1-")):
+            return "iso-8859-1"
+        return orig_enc
+
+    def detect_encoding(readline):
+        """
+        The detect_encoding() function is used to detect the encoding that should
+        be used to decode a Python source file.  It requires one argument, readline,
+        in the same way as the tokenize() generator.
+
+        It will call readline a maximum of twice, and return the encoding used
+        (as a string) and a list of any lines (left as bytes) it has read in.
+
+        It detects the encoding from the presence of a utf-8 bom or an encoding
+        cookie as specified in pep-0263.  If both a bom and a cookie are present,
+        but disagree, a SyntaxError will be raised.  If the encoding cookie is an
+        invalid charset, raise a SyntaxError.  Note that if a utf-8 bom is found,
+        'utf-8-sig' is returned.
+
+        If no encoding is specified, then the default of 'utf-8' will be returned.
+        """
+        try:
+            filename = readline.__self__.name
+        except AttributeError:
+            filename = None
+        bom_found = False
+        encoding = None
+        default = 'utf-8'
+        def read_or_stop():
+            try:
+                return readline()
+            except StopIteration:
+                return b''
+
+        def find_cookie(line):
+            try:
+                # Decode as UTF-8. Either the line is an encoding declaration,
+                # in which case it should be pure ASCII, or it must be UTF-8
+                # per default encoding.
+                line_string = line.decode('utf-8')
+            except UnicodeDecodeError:
+                msg = "invalid or missing encoding declaration"
+                if filename is not None:
+                    msg = '{} for {!r}'.format(msg, filename)
+                raise SyntaxError(msg)
+
+            matches = cookie_re.findall(line_string)
+            if not matches:
+                return None
+            encoding = _get_normal_name(matches[0])
+            try:
+                codec = lookup(encoding)
+            except LookupError:
+                # This behaviour mimics the Python interpreter
+                if filename is None:
+                    msg = "unknown encoding: " + encoding
+                else:
+                    msg = "unknown encoding for {!r}: {}".format(filename,
+                            encoding)
+                raise SyntaxError(msg)
+
+            if bom_found:
+                if codec.name != 'utf-8':
+                    # This behaviour mimics the Python interpreter
+                    if filename is None:
+                        msg = 'encoding problem: utf-8'
+                    else:
+                        msg = 'encoding problem for {!r}: utf-8'.format(filename)
+                    raise SyntaxError(msg)
+                encoding += '-sig'
+            return encoding
+
+        first = read_or_stop()
+        if first.startswith(BOM_UTF8):
+            bom_found = True
+            first = first[3:]
+            default = 'utf-8-sig'
+        if not first:
+            return default, []
+
+        encoding = find_cookie(first)
+        if encoding:
+            return encoding, [first]
+
+        second = read_or_stop()
+        if not second:
+            return default, [first]
+
+        encoding = find_cookie(second)
+        if encoding:
+            return encoding, [first, second]
+
+        return default, [first, second]
+
+# For converting & <-> & etc.
+try:
+    from html import escape
+except ImportError:
+    from cgi import escape
+if sys.version_info[:2] < (3, 4):
+    unescape = HTMLParser().unescape
+else:
+    from html import unescape
+
+try:
+    from collections import ChainMap
+except ImportError: # pragma: no cover
+    from collections import MutableMapping
+
+    try:
+        from reprlib import recursive_repr as _recursive_repr
+    except ImportError:
+        def _recursive_repr(fillvalue='...'):
+            '''
+            Decorator to make a repr function return fillvalue for a recursive
+            call
+            '''
+
+            def decorating_function(user_function):
+                repr_running = set()
+
+                def wrapper(self):
+                    key = id(self), get_ident()
+                    if key in repr_running:
+                        return fillvalue
+                    repr_running.add(key)
+                    try:
+                        result = user_function(self)
+                    finally:
+                        repr_running.discard(key)
+                    return result
+
+                # Can't use functools.wraps() here because of bootstrap issues
+                wrapper.__module__ = getattr(user_function, '__module__')
+                wrapper.__doc__ = getattr(user_function, '__doc__')
+                wrapper.__name__ = getattr(user_function, '__name__')
+                wrapper.__annotations__ = getattr(user_function, '__annotations__', {})
+                return wrapper
+
+            return decorating_function
+
+    class ChainMap(MutableMapping):
+        ''' A ChainMap groups multiple dicts (or other mappings) together
+        to create a single, updateable view.
+
+        The underlying mappings are stored in a list.  That list is public and can
+        accessed or updated using the *maps* attribute.  There is no other state.
+
+        Lookups search the underlying mappings successively until a key is found.
+        In contrast, writes, updates, and deletions only operate on the first
+        mapping.
+
+        '''
+
+        def __init__(self, *maps):
+            '''Initialize a ChainMap by setting *maps* to the given mappings.
+            If no mappings are provided, a single empty dictionary is used.
+
+            '''
+            self.maps = list(maps) or [{}]          # always at least one map
+
+        def __missing__(self, key):
+            raise KeyError(key)
+
+        def __getitem__(self, key):
+            for mapping in self.maps:
+                try:
+                    return mapping[key]             # can't use 'key in mapping' with defaultdict
+                except KeyError:
+                    pass
+            return self.__missing__(key)            # support subclasses that define __missing__
+
+        def get(self, key, default=None):
+            return self[key] if key in self else default
+
+        def __len__(self):
+            return len(set().union(*self.maps))     # reuses stored hash values if possible
+
+        def __iter__(self):
+            return iter(set().union(*self.maps))
+
+        def __contains__(self, key):
+            return any(key in m for m in self.maps)
+
+        def __bool__(self):
+            return any(self.maps)
+
+        @_recursive_repr()
+        def __repr__(self):
+            return '{0.__class__.__name__}({1})'.format(
+                self, ', '.join(map(repr, self.maps)))
+
+        @classmethod
+        def fromkeys(cls, iterable, *args):
+            'Create a ChainMap with a single dict created from the iterable.'
+            return cls(dict.fromkeys(iterable, *args))
+
+        def copy(self):
+            'New ChainMap or subclass with a new copy of maps[0] and refs to maps[1:]'
+            return self.__class__(self.maps[0].copy(), *self.maps[1:])
+
+        __copy__ = copy
+
+        def new_child(self):                        # like Django's Context.push()
+            'New ChainMap with a new dict followed by all previous maps.'
+            return self.__class__({}, *self.maps)
+
+        @property
+        def parents(self):                          # like Django's Context.pop()
+            'New ChainMap from maps[1:].'
+            return self.__class__(*self.maps[1:])
+
+        def __setitem__(self, key, value):
+            self.maps[0][key] = value
+
+        def __delitem__(self, key):
+            try:
+                del self.maps[0][key]
+            except KeyError:
+                raise KeyError('Key not found in the first mapping: {!r}'.format(key))
+
+        def popitem(self):
+            'Remove and return an item pair from maps[0]. Raise KeyError is maps[0] is empty.'
+            try:
+                return self.maps[0].popitem()
+            except KeyError:
+                raise KeyError('No keys found in the first mapping.')
+
+        def pop(self, key, *args):
+            'Remove *key* from maps[0] and return its value. Raise KeyError if *key* not in maps[0].'
+            try:
+                return self.maps[0].pop(key, *args)
+            except KeyError:
+                raise KeyError('Key not found in the first mapping: {!r}'.format(key))
+
+        def clear(self):
+            'Clear maps[0], leaving maps[1:] intact.'
+            self.maps[0].clear()
+
+try:
+    from imp import cache_from_source
+except ImportError: # pragma: no cover
+    def cache_from_source(path, debug_override=None):
+        assert path.endswith('.py')
+        if debug_override is None:
+            debug_override = __debug__
+        if debug_override:
+            suffix = 'c'
+        else:
+            suffix = 'o'
+        return path + suffix
+
+try:
+    from collections import OrderedDict
+except ImportError: # pragma: no cover
+## {{{ http://code.activestate.com/recipes/576693/ (r9)
+# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
+# Passes Python2.7's test suite and incorporates all the latest updates.
+    try:
+        from thread import get_ident as _get_ident
+    except ImportError:
+        from dummy_thread import get_ident as _get_ident
+
+    try:
+        from _abcoll import KeysView, ValuesView, ItemsView
+    except ImportError:
+        pass
+
+
+    class OrderedDict(dict):
+        'Dictionary that remembers insertion order'
+        # An inherited dict maps keys to values.
+        # The inherited dict provides __getitem__, __len__, __contains__, and get.
+        # The remaining methods are order-aware.
+        # Big-O running times for all methods are the same as for regular dictionaries.
+
+        # The internal self.__map dictionary maps keys to links in a doubly linked list.
+        # The circular doubly linked list starts and ends with a sentinel element.
+        # The sentinel element never gets deleted (this simplifies the algorithm).
+        # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
+
+        def __init__(self, *args, **kwds):
+            '''Initialize an ordered dictionary.  Signature is the same as for
+            regular dictionaries, but keyword arguments are not recommended
+            because their insertion order is arbitrary.
+
+            '''
+            if len(args) > 1:
+                raise TypeError('expected at most 1 arguments, got %d' % len(args))
+            try:
+                self.__root
+            except AttributeError:
+                self.__root = root = []                     # sentinel node
+                root[:] = [root, root, None]
+                self.__map = {}
+            self.__update(*args, **kwds)
+
+        def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
+            'od.__setitem__(i, y) <==> od[i]=y'
+            # Setting a new item creates a new link which goes at the end of the linked
+            # list, and the inherited dictionary is updated with the new key/value pair.
+            if key not in self:
+                root = self.__root
+                last = root[0]
+                last[1] = root[0] = self.__map[key] = [last, root, key]
+            dict_setitem(self, key, value)
+
+        def __delitem__(self, key, dict_delitem=dict.__delitem__):
+            'od.__delitem__(y) <==> del od[y]'
+            # Deleting an existing item uses self.__map to find the link which is
+            # then removed by updating the links in the predecessor and successor nodes.
+            dict_delitem(self, key)
+            link_prev, link_next, key = self.__map.pop(key)
+            link_prev[1] = link_next
+            link_next[0] = link_prev
+
+        def __iter__(self):
+            'od.__iter__() <==> iter(od)'
+            root = self.__root
+            curr = root[1]
+            while curr is not root:
+                yield curr[2]
+                curr = curr[1]
+
+        def __reversed__(self):
+            'od.__reversed__() <==> reversed(od)'
+            root = self.__root
+            curr = root[0]
+            while curr is not root:
+                yield curr[2]
+                curr = curr[0]
+
+        def clear(self):
+            'od.clear() -> None.  Remove all items from od.'
+            try:
+                for node in self.__map.itervalues():
+                    del node[:]
+                root = self.__root
+                root[:] = [root, root, None]
+                self.__map.clear()
+            except AttributeError:
+                pass
+            dict.clear(self)
+
+        def popitem(self, last=True):
+            '''od.popitem() -> (k, v), return and remove a (key, value) pair.
+            Pairs are returned in LIFO order if last is true or FIFO order if false.
+
+            '''
+            if not self:
+                raise KeyError('dictionary is empty')
+            root = self.__root
+            if last:
+                link = root[0]
+                link_prev = link[0]
+                link_prev[1] = root
+                root[0] = link_prev
+            else:
+                link = root[1]
+                link_next = link[1]
+                root[1] = link_next
+                link_next[0] = root
+            key = link[2]
+            del self.__map[key]
+            value = dict.pop(self, key)
+            return key, value
+
+        # -- the following methods do not depend on the internal structure --
+
+        def keys(self):
+            'od.keys() -> list of keys in od'
+            return list(self)
+
+        def values(self):
+            'od.values() -> list of values in od'
+            return [self[key] for key in self]
+
+        def items(self):
+            'od.items() -> list of (key, value) pairs in od'
+            return [(key, self[key]) for key in self]
+
+        def iterkeys(self):
+            'od.iterkeys() -> an iterator over the keys in od'
+            return iter(self)
+
+        def itervalues(self):
+            'od.itervalues -> an iterator over the values in od'
+            for k in self:
+                yield self[k]
+
+        def iteritems(self):
+            'od.iteritems -> an iterator over the (key, value) items in od'
+            for k in self:
+                yield (k, self[k])
+
+        def update(*args, **kwds):
+            '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
+
+            If E is a dict instance, does:           for k in E: od[k] = E[k]
+            If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
+            Or if E is an iterable of items, does:   for k, v in E: od[k] = v
+            In either case, this is followed by:     for k, v in F.items(): od[k] = v
+
+            '''
+            if len(args) > 2:
+                raise TypeError('update() takes at most 2 positional '
+                                'arguments (%d given)' % (len(args),))
+            elif not args:
+                raise TypeError('update() takes at least 1 argument (0 given)')
+            self = args[0]
+            # Make progressively weaker assumptions about "other"
+            other = ()
+            if len(args) == 2:
+                other = args[1]
+            if isinstance(other, dict):
+                for key in other:
+                    self[key] = other[key]
+            elif hasattr(other, 'keys'):
+                for key in other.keys():
+                    self[key] = other[key]
+            else:
+                for key, value in other:
+                    self[key] = value
+            for key, value in kwds.items():
+                self[key] = value
+
+        __update = update  # let subclasses override update without breaking __init__
+
+        __marker = object()
+
+        def pop(self, key, default=__marker):
+            '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+            If key is not found, d is returned if given, otherwise KeyError is raised.
+
+            '''
+            if key in self:
+                result = self[key]
+                del self[key]
+                return result
+            if default is self.__marker:
+                raise KeyError(key)
+            return default
+
+        def setdefault(self, key, default=None):
+            'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
+            if key in self:
+                return self[key]
+            self[key] = default
+            return default
+
+        def __repr__(self, _repr_running=None):
+            'od.__repr__() <==> repr(od)'
+            if not _repr_running: _repr_running = {}
+            call_key = id(self), _get_ident()
+            if call_key in _repr_running:
+                return '...'
+            _repr_running[call_key] = 1
+            try:
+                if not self:
+                    return '%s()' % (self.__class__.__name__,)
+                return '%s(%r)' % (self.__class__.__name__, self.items())
+            finally:
+                del _repr_running[call_key]
+
+        def __reduce__(self):
+            'Return state information for pickling'
+            items = [[k, self[k]] for k in self]
+            inst_dict = vars(self).copy()
+            for k in vars(OrderedDict()):
+                inst_dict.pop(k, None)
+            if inst_dict:
+                return (self.__class__, (items,), inst_dict)
+            return self.__class__, (items,)
+
+        def copy(self):
+            'od.copy() -> a shallow copy of od'
+            return self.__class__(self)
+
+        @classmethod
+        def fromkeys(cls, iterable, value=None):
+            '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
+            and values equal to v (which defaults to None).
+
+            '''
+            d = cls()
+            for key in iterable:
+                d[key] = value
+            return d
+
+        def __eq__(self, other):
+            '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
+            while comparison to a regular mapping is order-insensitive.
+
+            '''
+            if isinstance(other, OrderedDict):
+                return len(self)==len(other) and self.items() == other.items()
+            return dict.__eq__(self, other)
+
+        def __ne__(self, other):
+            return not self == other
+
+        # -- the following methods are only used in Python 2.7 --
+
+        def viewkeys(self):
+            "od.viewkeys() -> a set-like object providing a view on od's keys"
+            return KeysView(self)
+
+        def viewvalues(self):
+            "od.viewvalues() -> an object providing a view on od's values"
+            return ValuesView(self)
+
+        def viewitems(self):
+            "od.viewitems() -> a set-like object providing a view on od's items"
+            return ItemsView(self)
+
+try:
+    from logging.config import BaseConfigurator, valid_ident
+except ImportError: # pragma: no cover
+    IDENTIFIER = re.compile('^[a-z_][a-z0-9_]*$', re.I)
+
+
+    def valid_ident(s):
+        m = IDENTIFIER.match(s)
+        if not m:
+            raise ValueError('Not a valid Python identifier: %r' % s)
+        return True
+
+
+    # The ConvertingXXX classes are wrappers around standard Python containers,
+    # and they serve to convert any suitable values in the container. The
+    # conversion converts base dicts, lists and tuples to their wrapped
+    # equivalents, whereas strings which match a conversion format are converted
+    # appropriately.
+    #
+    # Each wrapper should have a configurator attribute holding the actual
+    # configurator to use for conversion.
+
+    class ConvertingDict(dict):
+        """A converting dictionary wrapper."""
+
+        def __getitem__(self, key):
+            value = dict.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+        def get(self, key, default=None):
+            value = dict.get(self, key, default)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+    def pop(self, key, default=None):
+        value = dict.pop(self, key, default)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    class ConvertingList(list):
+        """A converting list wrapper."""
+        def __getitem__(self, key):
+            value = list.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            #If the converted value is different, save for next time
+            if value is not result:
+                self[key] = result
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+        def pop(self, idx=-1):
+            value = list.pop(self, idx)
+            result = self.configurator.convert(value)
+            if value is not result:
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+            return result
+
+    class ConvertingTuple(tuple):
+        """A converting tuple wrapper."""
+        def __getitem__(self, key):
+            value = tuple.__getitem__(self, key)
+            result = self.configurator.convert(value)
+            if value is not result:
+                if type(result) in (ConvertingDict, ConvertingList,
+                                    ConvertingTuple):
+                    result.parent = self
+                    result.key = key
+            return result
+
+    class BaseConfigurator(object):
+        """
+        The configurator base class which defines some useful defaults.
+        """
+
+        CONVERT_PATTERN = re.compile(r'^(?P<prefix>[a-z]+)://(?P<suffix>.*)$')
+
+        WORD_PATTERN = re.compile(r'^\s*(\w+)\s*')
+        DOT_PATTERN = re.compile(r'^\.\s*(\w+)\s*')
+        INDEX_PATTERN = re.compile(r'^\[\s*(\w+)\s*\]\s*')
+        DIGIT_PATTERN = re.compile(r'^\d+$')
+
+        value_converters = {
+            'ext' : 'ext_convert',
+            'cfg' : 'cfg_convert',
+        }
+
+        # We might want to use a different one, e.g. importlib
+        importer = staticmethod(__import__)
+
+        def __init__(self, config):
+            self.config = ConvertingDict(config)
+            self.config.configurator = self
+
+        def resolve(self, s):
+            """
+            Resolve strings to objects using standard import and attribute
+            syntax.
+            """
+            name = s.split('.')
+            used = name.pop(0)
+            try:
+                found = self.importer(used)
+                for frag in name:
+                    used += '.' + frag
+                    try:
+                        found = getattr(found, frag)
+                    except AttributeError:
+                        self.importer(used)
+                        found = getattr(found, frag)
+                return found
+            except ImportError:
+                e, tb = sys.exc_info()[1:]
+                v = ValueError('Cannot resolve %r: %s' % (s, e))
+                v.__cause__, v.__traceback__ = e, tb
+                raise v
+
+        def ext_convert(self, value):
+            """Default converter for the ext:// protocol."""
+            return self.resolve(value)
+
+        def cfg_convert(self, value):
+            """Default converter for the cfg:// protocol."""
+            rest = value
+            m = self.WORD_PATTERN.match(rest)
+            if m is None:
+                raise ValueError("Unable to convert %r" % value)
+            else:
+                rest = rest[m.end():]
+                d = self.config[m.groups()[0]]
+                #print d, rest
+                while rest:
+                    m = self.DOT_PATTERN.match(rest)
+                    if m:
+                        d = d[m.groups()[0]]
+                    else:
+                        m = self.INDEX_PATTERN.match(rest)
+                        if m:
+                            idx = m.groups()[0]
+                            if not self.DIGIT_PATTERN.match(idx):
+                                d = d[idx]
+                            else:
+                                try:
+                                    n = int(idx) # try as number first (most likely)
+                                    d = d[n]
+                                except TypeError:
+                                    d = d[idx]
+                    if m:
+                        rest = rest[m.end():]
+                    else:
+                        raise ValueError('Unable to convert '
+                                         '%r at %r' % (value, rest))
+            #rest should be empty
+            return d
+
+        def convert(self, value):
+            """
+            Convert values to an appropriate type. dicts, lists and tuples are
+            replaced by their converting alternatives. Strings are checked to
+            see if they have a conversion format and are converted if they do.
+            """
+            if not isinstance(value, ConvertingDict) and isinstance(value, dict):
+                value = ConvertingDict(value)
+                value.configurator = self
+            elif not isinstance(value, ConvertingList) and isinstance(value, list):
+                value = ConvertingList(value)
+                value.configurator = self
+            elif not isinstance(value, ConvertingTuple) and\
+                     isinstance(value, tuple):
+                value = ConvertingTuple(value)
+                value.configurator = self
+            elif isinstance(value, string_types):
+                m = self.CONVERT_PATTERN.match(value)
+                if m:
+                    d = m.groupdict()
+                    prefix = d['prefix']
+                    converter = self.value_converters.get(prefix, None)
+                    if converter:
+                        suffix = d['suffix']
+                        converter = getattr(self, converter)
+                        value = converter(suffix)
+            return value
+
+        def configure_custom(self, config):
+            """Configure an object with a user-supplied factory."""
+            c = config.pop('()')
+            if not callable(c):
+                c = self.resolve(c)
+            props = config.pop('.', None)
+            # Check for valid identifiers
+            kwargs = dict([(k, config[k]) for k in config if valid_ident(k)])
+            result = c(**kwargs)
+            if props:
+                for name, value in props.items():
+                    setattr(result, name, value)
+            return result
+
+        def as_tuple(self, value):
+            """Utility function which converts lists to tuples."""
+            if isinstance(value, list):
+                value = tuple(value)
+            return value
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/database.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/database.py
new file mode 100644
index 0000000..c314426
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/database.py
@@ -0,0 +1,1312 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2016 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""PEP 376 implementation."""
+
+from __future__ import unicode_literals
+
+import base64
+import codecs
+import contextlib
+import hashlib
+import logging
+import os
+import posixpath
+import sys
+import zipimport
+
+from . import DistlibException, resources
+from .compat import StringIO
+from .version import get_scheme, UnsupportedVersionError
+from .metadata import Metadata, METADATA_FILENAME, WHEEL_METADATA_FILENAME
+from .util import (parse_requirement, cached_property, parse_name_and_version,
+                   read_exports, write_exports, CSVReader, CSVWriter)
+
+
+__all__ = ['Distribution', 'BaseInstalledDistribution',
+           'InstalledDistribution', 'EggInfoDistribution',
+           'DistributionPath']
+
+
+logger = logging.getLogger(__name__)
+
+EXPORTS_FILENAME = 'pydist-exports.json'
+COMMANDS_FILENAME = 'pydist-commands.json'
+
+DIST_FILES = ('INSTALLER', METADATA_FILENAME, 'RECORD', 'REQUESTED',
+              'RESOURCES', EXPORTS_FILENAME, 'SHARED')
+
+DISTINFO_EXT = '.dist-info'
+
+
+class _Cache(object):
+    """
+    A simple cache mapping names and .dist-info paths to distributions
+    """
+    def __init__(self):
+        """
+        Initialise an instance. There is normally one for each DistributionPath.
+        """
+        self.name = {}
+        self.path = {}
+        self.generated = False
+
+    def clear(self):
+        """
+        Clear the cache, setting it to its initial state.
+        """
+        self.name.clear()
+        self.path.clear()
+        self.generated = False
+
+    def add(self, dist):
+        """
+        Add a distribution to the cache.
+        :param dist: The distribution to add.
+        """
+        if dist.path not in self.path:
+            self.path[dist.path] = dist
+            self.name.setdefault(dist.key, []).append(dist)
+
+
+class DistributionPath(object):
+    """
+    Represents a set of distributions installed on a path (typically sys.path).
+    """
+    def __init__(self, path=None, include_egg=False):
+        """
+        Create an instance from a path, optionally including legacy (distutils/
+        setuptools/distribute) distributions.
+        :param path: The path to use, as a list of directories. If not specified,
+                     sys.path is used.
+        :param include_egg: If True, this instance will look for and return legacy
+                            distributions as well as those based on PEP 376.
+        """
+        if path is None:
+            path = sys.path
+        self.path = path
+        self._include_dist = True
+        self._include_egg = include_egg
+
+        self._cache = _Cache()
+        self._cache_egg = _Cache()
+        self._cache_enabled = True
+        self._scheme = get_scheme('default')
+
+    def _get_cache_enabled(self):
+        return self._cache_enabled
+
+    def _set_cache_enabled(self, value):
+        self._cache_enabled = value
+
+    cache_enabled = property(_get_cache_enabled, _set_cache_enabled)
+
+    def clear_cache(self):
+        """
+        Clears the internal cache.
+        """
+        self._cache.clear()
+        self._cache_egg.clear()
+
+
+    def _yield_distributions(self):
+        """
+        Yield .dist-info and/or .egg(-info) distributions.
+        """
+        # We need to check if we've seen some resources already, because on
+        # some Linux systems (e.g. some Debian/Ubuntu variants) there are
+        # symlinks which alias other files in the environment.
+        seen = set()
+        for path in self.path:
+            finder = resources.finder_for_path(path)
+            if finder is None:
+                continue
+            r = finder.find('')
+            if not r or not r.is_container:
+                continue
+            rset = sorted(r.resources)
+            for entry in rset:
+                r = finder.find(entry)
+                if not r or r.path in seen:
+                    continue
+                if self._include_dist and entry.endswith(DISTINFO_EXT):
+                    possible_filenames = [METADATA_FILENAME, WHEEL_METADATA_FILENAME]
+                    for metadata_filename in possible_filenames:
+                        metadata_path = posixpath.join(entry, metadata_filename)
+                        pydist = finder.find(metadata_path)
+                        if pydist:
+                            break
+                    else:
+                        continue
+
+                    with contextlib.closing(pydist.as_stream()) as stream:
+                        metadata = Metadata(fileobj=stream, scheme='legacy')
+                    logger.debug('Found %s', r.path)
+                    seen.add(r.path)
+                    yield new_dist_class(r.path, metadata=metadata,
+                                         env=self)
+                elif self._include_egg and entry.endswith(('.egg-info',
+                                                          '.egg')):
+                    logger.debug('Found %s', r.path)
+                    seen.add(r.path)
+                    yield old_dist_class(r.path, self)
+
+    def _generate_cache(self):
+        """
+        Scan the path for distributions and populate the cache with
+        those that are found.
+        """
+        gen_dist = not self._cache.generated
+        gen_egg = self._include_egg and not self._cache_egg.generated
+        if gen_dist or gen_egg:
+            for dist in self._yield_distributions():
+                if isinstance(dist, InstalledDistribution):
+                    self._cache.add(dist)
+                else:
+                    self._cache_egg.add(dist)
+
+            if gen_dist:
+                self._cache.generated = True
+            if gen_egg:
+                self._cache_egg.generated = True
+
+    @classmethod
+    def distinfo_dirname(cls, name, version):
+        """
+        The *name* and *version* parameters are converted into their
+        filename-escaped form, i.e. any ``'-'`` characters are replaced
+        with ``'_'`` other than the one in ``'dist-info'`` and the one
+        separating the name from the version number.
+
+        :parameter name: is converted to a standard distribution name by replacing
+                         any runs of non- alphanumeric characters with a single
+                         ``'-'``.
+        :type name: string
+        :parameter version: is converted to a standard version string. Spaces
+                            become dots, and all other non-alphanumeric characters
+                            (except dots) become dashes, with runs of multiple
+                            dashes condensed to a single dash.
+        :type version: string
+        :returns: directory name
+        :rtype: string"""
+        name = name.replace('-', '_')
+        return '-'.join([name, version]) + DISTINFO_EXT
+
+    def get_distributions(self):
+        """
+        Provides an iterator that looks for distributions and returns
+        :class:`InstalledDistribution` or
+        :class:`EggInfoDistribution` instances for each one of them.
+
+        :rtype: iterator of :class:`InstalledDistribution` and
+                :class:`EggInfoDistribution` instances
+        """
+        if not self._cache_enabled:
+            for dist in self._yield_distributions():
+                yield dist
+        else:
+            self._generate_cache()
+
+            for dist in self._cache.path.values():
+                yield dist
+
+            if self._include_egg:
+                for dist in self._cache_egg.path.values():
+                    yield dist
+
+    def get_distribution(self, name):
+        """
+        Looks for a named distribution on the path.
+
+        This function only returns the first result found, as no more than one
+        value is expected. If nothing is found, ``None`` is returned.
+
+        :rtype: :class:`InstalledDistribution`, :class:`EggInfoDistribution`
+                or ``None``
+        """
+        result = None
+        name = name.lower()
+        if not self._cache_enabled:
+            for dist in self._yield_distributions():
+                if dist.key == name:
+                    result = dist
+                    break
+        else:
+            self._generate_cache()
+
+            if name in self._cache.name:
+                result = self._cache.name[name][0]
+            elif self._include_egg and name in self._cache_egg.name:
+                result = self._cache_egg.name[name][0]
+        return result
+
+    def provides_distribution(self, name, version=None):
+        """
+        Iterates over all distributions to find which distributions provide *name*.
+        If a *version* is provided, it will be used to filter the results.
+
+        This function only returns the first result found, since no more than
+        one values are expected. If the directory is not found, returns ``None``.
+
+        :parameter version: a version specifier that indicates the version
+                            required, conforming to the format in ``PEP-345``
+
+        :type name: string
+        :type version: string
+        """
+        matcher = None
+        if not version is None:
+            try:
+                matcher = self._scheme.matcher('%s (%s)' % (name, version))
+            except ValueError:
+                raise DistlibException('invalid name or version: %r, %r' %
+                                      (name, version))
+
+        for dist in self.get_distributions():
+            provided = dist.provides
+
+            for p in provided:
+                p_name, p_ver = parse_name_and_version(p)
+                if matcher is None:
+                    if p_name == name:
+                        yield dist
+                        break
+                else:
+                    if p_name == name and matcher.match(p_ver):
+                        yield dist
+                        break
+
+    def get_file_path(self, name, relative_path):
+        """
+        Return the path to a resource file.
+        """
+        dist = self.get_distribution(name)
+        if dist is None:
+            raise LookupError('no distribution named %r found' % name)
+        return dist.get_resource_path(relative_path)
+
+    def get_exported_entries(self, category, name=None):
+        """
+        Return all of the exported entries in a particular category.
+
+        :param category: The category to search for entries.
+        :param name: If specified, only entries with that name are returned.
+        """
+        for dist in self.get_distributions():
+            r = dist.exports
+            if category in r:
+                d = r[category]
+                if name is not None:
+                    if name in d:
+                        yield d[name]
+                else:
+                    for v in d.values():
+                        yield v
+
+
+class Distribution(object):
+    """
+    A base class for distributions, whether installed or from indexes.
+    Either way, it must have some metadata, so that's all that's needed
+    for construction.
+    """
+
+    build_time_dependency = False
+    """
+    Set to True if it's known to be only a build-time dependency (i.e.
+    not needed after installation).
+    """
+
+    requested = False
+    """A boolean that indicates whether the ``REQUESTED`` metadata file is
+    present (in other words, whether the package was installed by user
+    request or it was installed as a dependency)."""
+
+    def __init__(self, metadata):
+        """
+        Initialise an instance.
+        :param metadata: The instance of :class:`Metadata` describing this
+        distribution.
+        """
+        self.metadata = metadata
+        self.name = metadata.name
+        self.key = self.name.lower()    # for case-insensitive comparisons
+        self.version = metadata.version
+        self.locator = None
+        self.digest = None
+        self.extras = None      # additional features requested
+        self.context = None     # environment marker overrides
+        self.download_urls = set()
+        self.digests = {}
+
+    @property
+    def source_url(self):
+        """
+        The source archive download URL for this distribution.
+        """
+        return self.metadata.source_url
+
+    download_url = source_url   # Backward compatibility
+
+    @property
+    def name_and_version(self):
+        """
+        A utility property which displays the name and version in parentheses.
+        """
+        return '%s (%s)' % (self.name, self.version)
+
+    @property
+    def provides(self):
+        """
+        A set of distribution names and versions provided by this distribution.
+        :return: A set of "name (version)" strings.
+        """
+        plist = self.metadata.provides
+        s = '%s (%s)' % (self.name, self.version)
+        if s not in plist:
+            plist.append(s)
+        return plist
+
+    def _get_requirements(self, req_attr):
+        md = self.metadata
+        logger.debug('Getting requirements from metadata %r', md.todict())
+        reqts = getattr(md, req_attr)
+        return set(md.get_requirements(reqts, extras=self.extras,
+                                       env=self.context))
+
+    @property
+    def run_requires(self):
+        return self._get_requirements('run_requires')
+
+    @property
+    def meta_requires(self):
+        return self._get_requirements('meta_requires')
+
+    @property
+    def build_requires(self):
+        return self._get_requirements('build_requires')
+
+    @property
+    def test_requires(self):
+        return self._get_requirements('test_requires')
+
+    @property
+    def dev_requires(self):
+        return self._get_requirements('dev_requires')
+
+    def matches_requirement(self, req):
+        """
+        Say if this instance matches (fulfills) a requirement.
+        :param req: The requirement to match.
+        :rtype req: str
+        :return: True if it matches, else False.
+        """
+        # Requirement may contain extras - parse to lose those
+        # from what's passed to the matcher
+        r = parse_requirement(req)
+        scheme = get_scheme(self.metadata.scheme)
+        try:
+            matcher = scheme.matcher(r.requirement)
+        except UnsupportedVersionError:
+            # XXX compat-mode if cannot read the version
+            logger.warning('could not read version %r - using name only',
+                           req)
+            name = req.split()[0]
+            matcher = scheme.matcher(name)
+
+        name = matcher.key   # case-insensitive
+
+        result = False
+        for p in self.provides:
+            p_name, p_ver = parse_name_and_version(p)
+            if p_name != name:
+                continue
+            try:
+                result = matcher.match(p_ver)
+                break
+            except UnsupportedVersionError:
+                pass
+        return result
+
+    def __repr__(self):
+        """
+        Return a textual representation of this instance,
+        """
+        if self.source_url:
+            suffix = ' [%s]' % self.source_url
+        else:
+            suffix = ''
+        return '<Distribution %s (%s)%s>' % (self.name, self.version, suffix)
+
+    def __eq__(self, other):
+        """
+        See if this distribution is the same as another.
+        :param other: The distribution to compare with. To be equal to one
+                      another. distributions must have the same type, name,
+                      version and source_url.
+        :return: True if it is the same, else False.
+        """
+        if type(other) is not type(self):
+            result = False
+        else:
+            result = (self.name == other.name and
+                      self.version == other.version and
+                      self.source_url == other.source_url)
+        return result
+
+    def __hash__(self):
+        """
+        Compute hash in a way which matches the equality test.
+        """
+        return hash(self.name) + hash(self.version) + hash(self.source_url)
+
+
+class BaseInstalledDistribution(Distribution):
+    """
+    This is the base class for installed distributions (whether PEP 376 or
+    legacy).
+    """
+
+    hasher = None
+
+    def __init__(self, metadata, path, env=None):
+        """
+        Initialise an instance.
+        :param metadata: An instance of :class:`Metadata` which describes the
+                         distribution. This will normally have been initialised
+                         from a metadata file in the ``path``.
+        :param path:     The path of the ``.dist-info`` or ``.egg-info``
+                         directory for the distribution.
+        :param env:      This is normally the :class:`DistributionPath`
+                         instance where this distribution was found.
+        """
+        super(BaseInstalledDistribution, self).__init__(metadata)
+        self.path = path
+        self.dist_path = env
+
+    def get_hash(self, data, hasher=None):
+        """
+        Get the hash of some data, using a particular hash algorithm, if
+        specified.
+
+        :param data: The data to be hashed.
+        :type data: bytes
+        :param hasher: The name of a hash implementation, supported by hashlib,
+                       or ``None``. Examples of valid values are ``'sha1'``,
+                       ``'sha224'``, ``'sha384'``, '``sha256'``, ``'md5'`` and
+                       ``'sha512'``. If no hasher is specified, the ``hasher``
+                       attribute of the :class:`InstalledDistribution` instance
+                       is used. If the hasher is determined to be ``None``, MD5
+                       is used as the hashing algorithm.
+        :returns: The hash of the data. If a hasher was explicitly specified,
+                  the returned hash will be prefixed with the specified hasher
+                  followed by '='.
+        :rtype: str
+        """
+        if hasher is None:
+            hasher = self.hasher
+        if hasher is None:
+            hasher = hashlib.md5
+            prefix = ''
+        else:
+            hasher = getattr(hashlib, hasher)
+            prefix = '%s=' % self.hasher
+        digest = hasher(data).digest()
+        digest = base64.urlsafe_b64encode(digest).rstrip(b'=').decode('ascii')
+        return '%s%s' % (prefix, digest)
+
+
+class InstalledDistribution(BaseInstalledDistribution):
+    """
+    Created with the *path* of the ``.dist-info`` directory provided to the
+    constructor. It reads the metadata contained in ``pydist.json`` when it is
+    instantiated., or uses a passed in Metadata instance (useful for when
+    dry-run mode is being used).
+    """
+
+    hasher = 'sha256'
+
+    def __init__(self, path, metadata=None, env=None):
+        self.finder = finder = resources.finder_for_path(path)
+        if finder is None:
+            import pdb; pdb.set_trace ()
+        if env and env._cache_enabled and path in env._cache.path:
+            metadata = env._cache.path[path].metadata
+        elif metadata is None:
+            r = finder.find(METADATA_FILENAME)
+            # Temporary - for Wheel 0.23 support
+            if r is None:
+                r = finder.find(WHEEL_METADATA_FILENAME)
+            # Temporary - for legacy support
+            if r is None:
+                r = finder.find('METADATA')
+            if r is None:
+                raise ValueError('no %s found in %s' % (METADATA_FILENAME,
+                                                        path))
+            with contextlib.closing(r.as_stream()) as stream:
+                metadata = Metadata(fileobj=stream, scheme='legacy')
+
+        super(InstalledDistribution, self).__init__(metadata, path, env)
+
+        if env and env._cache_enabled:
+            env._cache.add(self)
+
+        try:
+            r = finder.find('REQUESTED')
+        except AttributeError:
+            import pdb; pdb.set_trace ()
+        self.requested = r is not None
+
+    def __repr__(self):
+        return '<InstalledDistribution %r %s at %r>' % (
+            self.name, self.version, self.path)
+
+    def __str__(self):
+        return "%s %s" % (self.name, self.version)
+
+    def _get_records(self):
+        """
+        Get the list of installed files for the distribution
+        :return: A list of tuples of path, hash and size. Note that hash and
+                 size might be ``None`` for some entries. The path is exactly
+                 as stored in the file (which is as in PEP 376).
+        """
+        results = []
+        r = self.get_distinfo_resource('RECORD')
+        with contextlib.closing(r.as_stream()) as stream:
+            with CSVReader(stream=stream) as record_reader:
+                # Base location is parent dir of .dist-info dir
+                #base_location = os.path.dirname(self.path)
+                #base_location = os.path.abspath(base_location)
+                for row in record_reader:
+                    missing = [None for i in range(len(row), 3)]
+                    path, checksum, size = row + missing
+                    #if not os.path.isabs(path):
+                    #    path = path.replace('/', os.sep)
+                    #    path = os.path.join(base_location, path)
+                    results.append((path, checksum, size))
+        return results
+
+    @cached_property
+    def exports(self):
+        """
+        Return the information exported by this distribution.
+        :return: A dictionary of exports, mapping an export category to a dict
+                 of :class:`ExportEntry` instances describing the individual
+                 export entries, and keyed by name.
+        """
+        result = {}
+        r = self.get_distinfo_resource(EXPORTS_FILENAME)
+        if r:
+            result = self.read_exports()
+        return result
+
+    def read_exports(self):
+        """
+        Read exports data from a file in .ini format.
+
+        :return: A dictionary of exports, mapping an export category to a list
+                 of :class:`ExportEntry` instances describing the individual
+                 export entries.
+        """
+        result = {}
+        r = self.get_distinfo_resource(EXPORTS_FILENAME)
+        if r:
+            with contextlib.closing(r.as_stream()) as stream:
+                result = read_exports(stream)
+        return result
+
+    def write_exports(self, exports):
+        """
+        Write a dictionary of exports to a file in .ini format.
+        :param exports: A dictionary of exports, mapping an export category to
+                        a list of :class:`ExportEntry` instances describing the
+                        individual export entries.
+        """
+        rf = self.get_distinfo_file(EXPORTS_FILENAME)
+        with open(rf, 'w') as f:
+            write_exports(exports, f)
+
+    def get_resource_path(self, relative_path):
+        """
+        NOTE: This API may change in the future.
+
+        Return the absolute path to a resource file with the given relative
+        path.
+
+        :param relative_path: The path, relative to .dist-info, of the resource
+                              of interest.
+        :return: The absolute path where the resource is to be found.
+        """
+        r = self.get_distinfo_resource('RESOURCES')
+        with contextlib.closing(r.as_stream()) as stream:
+            with CSVReader(stream=stream) as resources_reader:
+                for relative, destination in resources_reader:
+                    if relative == relative_path:
+                        return destination
+        raise KeyError('no resource file with relative path %r '
+                       'is installed' % relative_path)
+
+    def list_installed_files(self):
+        """
+        Iterates over the ``RECORD`` entries and returns a tuple
+        ``(path, hash, size)`` for each line.
+
+        :returns: iterator of (path, hash, size)
+        """
+        for result in self._get_records():
+            yield result
+
+    def write_installed_files(self, paths, prefix, dry_run=False):
+        """
+        Writes the ``RECORD`` file, using the ``paths`` iterable passed in. Any
+        existing ``RECORD`` file is silently overwritten.
+
+        prefix is used to determine when to write absolute paths.
+        """
+        prefix = os.path.join(prefix, '')
+        base = os.path.dirname(self.path)
+        base_under_prefix = base.startswith(prefix)
+        base = os.path.join(base, '')
+        record_path = self.get_distinfo_file('RECORD')
+        logger.info('creating %s', record_path)
+        if dry_run:
+            return None
+        with CSVWriter(record_path) as writer:
+            for path in paths:
+                if os.path.isdir(path) or path.endswith(('.pyc', '.pyo')):
+                    # do not put size and hash, as in PEP-376
+                    hash_value = size = ''
+                else:
+                    size = '%d' % os.path.getsize(path)
+                    with open(path, 'rb') as fp:
+                        hash_value = self.get_hash(fp.read())
+                if path.startswith(base) or (base_under_prefix and
+                                             path.startswith(prefix)):
+                    path = os.path.relpath(path, base)
+                writer.writerow((path, hash_value, size))
+
+            # add the RECORD file itself
+            if record_path.startswith(base):
+                record_path = os.path.relpath(record_path, base)
+            writer.writerow((record_path, '', ''))
+        return record_path
+
+    def check_installed_files(self):
+        """
+        Checks that the hashes and sizes of the files in ``RECORD`` are
+        matched by the files themselves. Returns a (possibly empty) list of
+        mismatches. Each entry in the mismatch list will be a tuple consisting
+        of the path, 'exists', 'size' or 'hash' according to what didn't match
+        (existence is checked first, then size, then hash), the expected
+        value and the actual value.
+        """
+        mismatches = []
+        base = os.path.dirname(self.path)
+        record_path = self.get_distinfo_file('RECORD')
+        for path, hash_value, size in self.list_installed_files():
+            if not os.path.isabs(path):
+                path = os.path.join(base, path)
+            if path == record_path:
+                continue
+            if not os.path.exists(path):
+                mismatches.append((path, 'exists', True, False))
+            elif os.path.isfile(path):
+                actual_size = str(os.path.getsize(path))
+                if size and actual_size != size:
+                    mismatches.append((path, 'size', size, actual_size))
+                elif hash_value:
+                    if '=' in hash_value:
+                        hasher = hash_value.split('=', 1)[0]
+                    else:
+                        hasher = None
+
+                    with open(path, 'rb') as f:
+                        actual_hash = self.get_hash(f.read(), hasher)
+                        if actual_hash != hash_value:
+                            mismatches.append((path, 'hash', hash_value, actual_hash))
+        return mismatches
+
+    @cached_property
+    def shared_locations(self):
+        """
+        A dictionary of shared locations whose keys are in the set 'prefix',
+        'purelib', 'platlib', 'scripts', 'headers', 'data' and 'namespace'.
+        The corresponding value is the absolute path of that category for
+        this distribution, and takes into account any paths selected by the
+        user at installation time (e.g. via command-line arguments). In the
+        case of the 'namespace' key, this would be a list of absolute paths
+        for the roots of namespace packages in this distribution.
+
+        The first time this property is accessed, the relevant information is
+        read from the SHARED file in the .dist-info directory.
+        """
+        result = {}
+        shared_path = os.path.join(self.path, 'SHARED')
+        if os.path.isfile(shared_path):
+            with codecs.open(shared_path, 'r', encoding='utf-8') as f:
+                lines = f.read().splitlines()
+            for line in lines:
+                key, value = line.split('=', 1)
+                if key == 'namespace':
+                    result.setdefault(key, []).append(value)
+                else:
+                    result[key] = value
+        return result
+
+    def write_shared_locations(self, paths, dry_run=False):
+        """
+        Write shared location information to the SHARED file in .dist-info.
+        :param paths: A dictionary as described in the documentation for
+        :meth:`shared_locations`.
+        :param dry_run: If True, the action is logged but no file is actually
+                        written.
+        :return: The path of the file written to.
+        """
+        shared_path = os.path.join(self.path, 'SHARED')
+        logger.info('creating %s', shared_path)
+        if dry_run:
+            return None
+        lines = []
+        for key in ('prefix', 'lib', 'headers', 'scripts', 'data'):
+            path = paths[key]
+            if os.path.isdir(paths[key]):
+                lines.append('%s=%s' % (key,  path))
+        for ns in paths.get('namespace', ()):
+            lines.append('namespace=%s' % ns)
+
+        with codecs.open(shared_path, 'w', encoding='utf-8') as f:
+            f.write('\n'.join(lines))
+        return shared_path
+
+    def get_distinfo_resource(self, path):
+        if path not in DIST_FILES:
+            raise DistlibException('invalid path for a dist-info file: '
+                                   '%r at %r' % (path, self.path))
+        finder = resources.finder_for_path(self.path)
+        if finder is None:
+            raise DistlibException('Unable to get a finder for %s' % self.path)
+        return finder.find(path)
+
+    def get_distinfo_file(self, path):
+        """
+        Returns a path located under the ``.dist-info`` directory. Returns a
+        string representing the path.
+
+        :parameter path: a ``'/'``-separated path relative to the
+                         ``.dist-info`` directory or an absolute path;
+                         If *path* is an absolute path and doesn't start
+                         with the ``.dist-info`` directory path,
+                         a :class:`DistlibException` is raised
+        :type path: str
+        :rtype: str
+        """
+        # Check if it is an absolute path  # XXX use relpath, add tests
+        if path.find(os.sep) >= 0:
+            # it's an absolute path?
+            distinfo_dirname, path = path.split(os.sep)[-2:]
+            if distinfo_dirname != self.path.split(os.sep)[-1]:
+                raise DistlibException(
+                    'dist-info file %r does not belong to the %r %s '
+                    'distribution' % (path, self.name, self.version))
+
+        # The file must be relative
+        if path not in DIST_FILES:
+            raise DistlibException('invalid path for a dist-info file: '
+                                   '%r at %r' % (path, self.path))
+
+        return os.path.join(self.path, path)
+
+    def list_distinfo_files(self):
+        """
+        Iterates over the ``RECORD`` entries and returns paths for each line if
+        the path is pointing to a file located in the ``.dist-info`` directory
+        or one of its subdirectories.
+
+        :returns: iterator of paths
+        """
+        base = os.path.dirname(self.path)
+        for path, checksum, size in self._get_records():
+            # XXX add separator or use real relpath algo
+            if not os.path.isabs(path):
+                path = os.path.join(base, path)
+            if path.startswith(self.path):
+                yield path
+
+    def __eq__(self, other):
+        return (isinstance(other, InstalledDistribution) and
+                self.path == other.path)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    __hash__ = object.__hash__
+
+
+class EggInfoDistribution(BaseInstalledDistribution):
+    """Created with the *path* of the ``.egg-info`` directory or file provided
+    to the constructor. It reads the metadata contained in the file itself, or
+    if the given path happens to be a directory, the metadata is read from the
+    file ``PKG-INFO`` under that directory."""
+
+    requested = True    # as we have no way of knowing, assume it was
+    shared_locations = {}
+
+    def __init__(self, path, env=None):
+        def set_name_and_version(s, n, v):
+            s.name = n
+            s.key = n.lower()   # for case-insensitive comparisons
+            s.version = v
+
+        self.path = path
+        self.dist_path = env
+        if env and env._cache_enabled and path in env._cache_egg.path:
+            metadata = env._cache_egg.path[path].metadata
+            set_name_and_version(self, metadata.name, metadata.version)
+        else:
+            metadata = self._get_metadata(path)
+
+            # Need to be set before caching
+            set_name_and_version(self, metadata.name, metadata.version)
+
+            if env and env._cache_enabled:
+                env._cache_egg.add(self)
+        super(EggInfoDistribution, self).__init__(metadata, path, env)
+
+    def _get_metadata(self, path):
+        requires = None
+
+        def parse_requires_data(data):
+            """Create a list of dependencies from a requires.txt file.
+
+            *data*: the contents of a setuptools-produced requires.txt file.
+            """
+            reqs = []
+            lines = data.splitlines()
+            for line in lines:
+                line = line.strip()
+                if line.startswith('['):
+                    logger.warning('Unexpected line: quitting requirement scan: %r',
+                                   line)
+                    break
+                r = parse_requirement(line)
+                if not r:
+                    logger.warning('Not recognised as a requirement: %r', line)
+                    continue
+                if r.extras:
+                    logger.warning('extra requirements in requires.txt are '
+                                   'not supported')
+                if not r.constraints:
+                    reqs.append(r.name)
+                else:
+                    cons = ', '.join('%s%s' % c for c in r.constraints)
+                    reqs.append('%s (%s)' % (r.name, cons))
+            return reqs
+
+        def parse_requires_path(req_path):
+            """Create a list of dependencies from a requires.txt file.
+
+            *req_path*: the path to a setuptools-produced requires.txt file.
+            """
+
+            reqs = []
+            try:
+                with codecs.open(req_path, 'r', 'utf-8') as fp:
+                    reqs = parse_requires_data(fp.read())
+            except IOError:
+                pass
+            return reqs
+
+        if path.endswith('.egg'):
+            if os.path.isdir(path):
+                meta_path = os.path.join(path, 'EGG-INFO', 'PKG-INFO')
+                metadata = Metadata(path=meta_path, scheme='legacy')
+                req_path = os.path.join(path, 'EGG-INFO', 'requires.txt')
+                requires = parse_requires_path(req_path)
+            else:
+                # FIXME handle the case where zipfile is not available
+                zipf = zipimport.zipimporter(path)
+                fileobj = StringIO(
+                    zipf.get_data('EGG-INFO/PKG-INFO').decode('utf8'))
+                metadata = Metadata(fileobj=fileobj, scheme='legacy')
+                try:
+                    data = zipf.get_data('EGG-INFO/requires.txt')
+                    requires = parse_requires_data(data.decode('utf-8'))
+                except IOError:
+                    requires = None
+        elif path.endswith('.egg-info'):
+            if os.path.isdir(path):
+                req_path = os.path.join(path, 'requires.txt')
+                requires = parse_requires_path(req_path)
+                path = os.path.join(path, 'PKG-INFO')
+            metadata = Metadata(path=path, scheme='legacy')
+        else:
+            raise DistlibException('path must end with .egg-info or .egg, '
+                                   'got %r' % path)
+
+        if requires:
+            metadata.add_requirements(requires)
+        return metadata
+
+    def __repr__(self):
+        return '<EggInfoDistribution %r %s at %r>' % (
+            self.name, self.version, self.path)
+
+    def __str__(self):
+        return "%s %s" % (self.name, self.version)
+
+    def check_installed_files(self):
+        """
+        Checks that the hashes and sizes of the files in ``RECORD`` are
+        matched by the files themselves. Returns a (possibly empty) list of
+        mismatches. Each entry in the mismatch list will be a tuple consisting
+        of the path, 'exists', 'size' or 'hash' according to what didn't match
+        (existence is checked first, then size, then hash), the expected
+        value and the actual value.
+        """
+        mismatches = []
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        if os.path.exists(record_path):
+            for path, _, _ in self.list_installed_files():
+                if path == record_path:
+                    continue
+                if not os.path.exists(path):
+                    mismatches.append((path, 'exists', True, False))
+        return mismatches
+
+    def list_installed_files(self):
+        """
+        Iterates over the ``installed-files.txt`` entries and returns a tuple
+        ``(path, hash, size)`` for each line.
+
+        :returns: a list of (path, hash, size)
+        """
+
+        def _md5(path):
+            f = open(path, 'rb')
+            try:
+                content = f.read()
+            finally:
+                f.close()
+            return hashlib.md5(content).hexdigest()
+
+        def _size(path):
+            return os.stat(path).st_size
+
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        result = []
+        if os.path.exists(record_path):
+            with codecs.open(record_path, 'r', encoding='utf-8') as f:
+                for line in f:
+                    line = line.strip()
+                    p = os.path.normpath(os.path.join(self.path, line))
+                    # "./" is present as a marker between installed files
+                    # and installation metadata files
+                    if not os.path.exists(p):
+                        logger.warning('Non-existent file: %s', p)
+                        if p.endswith(('.pyc', '.pyo')):
+                            continue
+                        #otherwise fall through and fail
+                    if not os.path.isdir(p):
+                        result.append((p, _md5(p), _size(p)))
+            result.append((record_path, None, None))
+        return result
+
+    def list_distinfo_files(self, absolute=False):
+        """
+        Iterates over the ``installed-files.txt`` entries and returns paths for
+        each line if the path is pointing to a file located in the
+        ``.egg-info`` directory or one of its subdirectories.
+
+        :parameter absolute: If *absolute* is ``True``, each returned path is
+                          transformed into a local absolute path. Otherwise the
+                          raw value from ``installed-files.txt`` is returned.
+        :type absolute: boolean
+        :returns: iterator of paths
+        """
+        record_path = os.path.join(self.path, 'installed-files.txt')
+        skip = True
+        with codecs.open(record_path, 'r', encoding='utf-8') as f:
+            for line in f:
+                line = line.strip()
+                if line == './':
+                    skip = False
+                    continue
+                if not skip:
+                    p = os.path.normpath(os.path.join(self.path, line))
+                    if p.startswith(self.path):
+                        if absolute:
+                            yield p
+                        else:
+                            yield line
+
+    def __eq__(self, other):
+        return (isinstance(other, EggInfoDistribution) and
+                self.path == other.path)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    __hash__ = object.__hash__
+
+new_dist_class = InstalledDistribution
+old_dist_class = EggInfoDistribution
+
+
+class DependencyGraph(object):
+    """
+    Represents a dependency graph between distributions.
+
+    The dependency relationships are stored in an ``adjacency_list`` that maps
+    distributions to a list of ``(other, label)`` tuples where  ``other``
+    is a distribution and the edge is labeled with ``label`` (i.e. the version
+    specifier, if such was provided). Also, for more efficient traversal, for
+    every distribution ``x``, a list of predecessors is kept in
+    ``reverse_list[x]``. An edge from distribution ``a`` to
+    distribution ``b`` means that ``a`` depends on ``b``. If any missing
+    dependencies are found, they are stored in ``missing``, which is a
+    dictionary that maps distributions to a list of requirements that were not
+    provided by any other distributions.
+    """
+
+    def __init__(self):
+        self.adjacency_list = {}
+        self.reverse_list = {}
+        self.missing = {}
+
+    def add_distribution(self, distribution):
+        """Add the *distribution* to the graph.
+
+        :type distribution: :class:`distutils2.database.InstalledDistribution`
+                            or :class:`distutils2.database.EggInfoDistribution`
+        """
+        self.adjacency_list[distribution] = []
+        self.reverse_list[distribution] = []
+        #self.missing[distribution] = []
+
+    def add_edge(self, x, y, label=None):
+        """Add an edge from distribution *x* to distribution *y* with the given
+        *label*.
+
+        :type x: :class:`distutils2.database.InstalledDistribution` or
+                 :class:`distutils2.database.EggInfoDistribution`
+        :type y: :class:`distutils2.database.InstalledDistribution` or
+                 :class:`distutils2.database.EggInfoDistribution`
+        :type label: ``str`` or ``None``
+        """
+        self.adjacency_list[x].append((y, label))
+        # multiple edges are allowed, so be careful
+        if x not in self.reverse_list[y]:
+            self.reverse_list[y].append(x)
+
+    def add_missing(self, distribution, requirement):
+        """
+        Add a missing *requirement* for the given *distribution*.
+
+        :type distribution: :class:`distutils2.database.InstalledDistribution`
+                            or :class:`distutils2.database.EggInfoDistribution`
+        :type requirement: ``str``
+        """
+        logger.debug('%s missing %r', distribution, requirement)
+        self.missing.setdefault(distribution, []).append(requirement)
+
+    def _repr_dist(self, dist):
+        return '%s %s' % (dist.name, dist.version)
+
+    def repr_node(self, dist, level=1):
+        """Prints only a subgraph"""
+        output = [self._repr_dist(dist)]
+        for other, label in self.adjacency_list[dist]:
+            dist = self._repr_dist(other)
+            if label is not None:
+                dist = '%s [%s]' % (dist, label)
+            output.append('    ' * level + str(dist))
+            suboutput = self.repr_node(other, level + 1)
+            subs = suboutput.split('\n')
+            output.extend(subs[1:])
+        return '\n'.join(output)
+
+    def to_dot(self, f, skip_disconnected=True):
+        """Writes a DOT output for the graph to the provided file *f*.
+
+        If *skip_disconnected* is set to ``True``, then all distributions
+        that are not dependent on any other distribution are skipped.
+
+        :type f: has to support ``file``-like operations
+        :type skip_disconnected: ``bool``
+        """
+        disconnected = []
+
+        f.write("digraph dependencies {\n")
+        for dist, adjs in self.adjacency_list.items():
+            if len(adjs) == 0 and not skip_disconnected:
+                disconnected.append(dist)
+            for other, label in adjs:
+                if not label is None:
+                    f.write('"%s" -> "%s" [label="%s"]\n' %
+                            (dist.name, other.name, label))
+                else:
+                    f.write('"%s" -> "%s"\n' % (dist.name, other.name))
+        if not skip_disconnected and len(disconnected) > 0:
+            f.write('subgraph disconnected {\n')
+            f.write('label = "Disconnected"\n')
+            f.write('bgcolor = red\n')
+
+            for dist in disconnected:
+                f.write('"%s"' % dist.name)
+                f.write('\n')
+            f.write('}\n')
+        f.write('}\n')
+
+    def topological_sort(self):
+        """
+        Perform a topological sort of the graph.
+        :return: A tuple, the first element of which is a topologically sorted
+                 list of distributions, and the second element of which is a
+                 list of distributions that cannot be sorted because they have
+                 circular dependencies and so form a cycle.
+        """
+        result = []
+        # Make a shallow copy of the adjacency list
+        alist = {}
+        for k, v in self.adjacency_list.items():
+            alist[k] = v[:]
+        while True:
+            # See what we can remove in this run
+            to_remove = []
+            for k, v in list(alist.items())[:]:
+                if not v:
+                    to_remove.append(k)
+                    del alist[k]
+            if not to_remove:
+                # What's left in alist (if anything) is a cycle.
+                break
+            # Remove from the adjacency list of others
+            for k, v in alist.items():
+                alist[k] = [(d, r) for d, r in v if d not in to_remove]
+            logger.debug('Moving to result: %s',
+                         ['%s (%s)' % (d.name, d.version) for d in to_remove])
+            result.extend(to_remove)
+        return result, list(alist.keys())
+
+    def __repr__(self):
+        """Representation of the graph"""
+        output = []
+        for dist, adjs in self.adjacency_list.items():
+            output.append(self.repr_node(dist))
+        return '\n'.join(output)
+
+
+def make_graph(dists, scheme='default'):
+    """Makes a dependency graph from the given distributions.
+
+    :parameter dists: a list of distributions
+    :type dists: list of :class:`distutils2.database.InstalledDistribution` and
+                 :class:`distutils2.database.EggInfoDistribution` instances
+    :rtype: a :class:`DependencyGraph` instance
+    """
+    scheme = get_scheme(scheme)
+    graph = DependencyGraph()
+    provided = {}  # maps names to lists of (version, dist) tuples
+
+    # first, build the graph and find out what's provided
+    for dist in dists:
+        graph.add_distribution(dist)
+
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Add to provided: %s, %s, %s', name, version, dist)
+            provided.setdefault(name, []).append((version, dist))
+
+    # now make the edges
+    for dist in dists:
+        requires = (dist.run_requires | dist.meta_requires |
+                    dist.build_requires | dist.dev_requires)
+        for req in requires:
+            try:
+                matcher = scheme.matcher(req)
+            except UnsupportedVersionError:
+                # XXX compat-mode if cannot read the version
+                logger.warning('could not read version %r - using name only',
+                               req)
+                name = req.split()[0]
+                matcher = scheme.matcher(name)
+
+            name = matcher.key   # case-insensitive
+
+            matched = False
+            if name in provided:
+                for version, provider in provided[name]:
+                    try:
+                        match = matcher.match(version)
+                    except UnsupportedVersionError:
+                        match = False
+
+                    if match:
+                        graph.add_edge(dist, provider, req)
+                        matched = True
+                        break
+            if not matched:
+                graph.add_missing(dist, req)
+    return graph
+
+
+def get_dependent_dists(dists, dist):
+    """Recursively generate a list of distributions from *dists* that are
+    dependent on *dist*.
+
+    :param dists: a list of distributions
+    :param dist: a distribution, member of *dists* for which we are interested
+    """
+    if dist not in dists:
+        raise DistlibException('given distribution %r is not a member '
+                               'of the list' % dist.name)
+    graph = make_graph(dists)
+
+    dep = [dist]  # dependent distributions
+    todo = graph.reverse_list[dist]  # list of nodes we should inspect
+
+    while todo:
+        d = todo.pop()
+        dep.append(d)
+        for succ in graph.reverse_list[d]:
+            if succ not in dep:
+                todo.append(succ)
+
+    dep.pop(0)  # remove dist from dep, was there to prevent infinite loops
+    return dep
+
+
+def get_required_dists(dists, dist):
+    """Recursively generate a list of distributions from *dists* that are
+    required by *dist*.
+
+    :param dists: a list of distributions
+    :param dist: a distribution, member of *dists* for which we are interested
+    """
+    if dist not in dists:
+        raise DistlibException('given distribution %r is not a member '
+                               'of the list' % dist.name)
+    graph = make_graph(dists)
+
+    req = []  # required distributions
+    todo = graph.adjacency_list[dist]  # list of nodes we should inspect
+
+    while todo:
+        d = todo.pop()[0]
+        req.append(d)
+        for pred in graph.adjacency_list[d]:
+            if pred not in req:
+                todo.append(pred)
+
+    return req
+
+
+def make_dist(name, version, **kwargs):
+    """
+    A convenience method for making a dist given just a name and version.
+    """
+    summary = kwargs.pop('summary', 'Placeholder for summary')
+    md = Metadata(**kwargs)
+    md.name = name
+    md.version = version
+    md.summary = summary or 'Placeholder for summary'
+    return Distribution(md)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/index.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/index.py
new file mode 100644
index 0000000..6803dd2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/index.py
@@ -0,0 +1,515 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import hashlib
+import logging
+import os
+import shutil
+import subprocess
+import tempfile
+try:
+    from threading import Thread
+except ImportError:
+    from dummy_threading import Thread
+
+from . import DistlibException
+from .compat import (HTTPBasicAuthHandler, Request, HTTPPasswordMgr,
+                     urlparse, build_opener, string_types)
+from .util import cached_property, zip_dir, ServerProxy
+
+logger = logging.getLogger(__name__)
+
+DEFAULT_INDEX = 'https://pypi.python.org/pypi'
+DEFAULT_REALM = 'pypi'
+
+class PackageIndex(object):
+    """
+    This class represents a package index compatible with PyPI, the Python
+    Package Index.
+    """
+
+    boundary = b'----------ThIs_Is_tHe_distlib_index_bouNdaRY_$'
+
+    def __init__(self, url=None):
+        """
+        Initialise an instance.
+
+        :param url: The URL of the index. If not specified, the URL for PyPI is
+                    used.
+        """
+        self.url = url or DEFAULT_INDEX
+        self.read_configuration()
+        scheme, netloc, path, params, query, frag = urlparse(self.url)
+        if params or query or frag or scheme not in ('http', 'https'):
+            raise DistlibException('invalid repository: %s' % self.url)
+        self.password_handler = None
+        self.ssl_verifier = None
+        self.gpg = None
+        self.gpg_home = None
+        self.rpc_proxy = None
+        with open(os.devnull, 'w') as sink:
+            # Use gpg by default rather than gpg2, as gpg2 insists on
+            # prompting for passwords
+            for s in ('gpg', 'gpg2'):
+                try:
+                    rc = subprocess.check_call([s, '--version'], stdout=sink,
+                                               stderr=sink)
+                    if rc == 0:
+                        self.gpg = s
+                        break
+                except OSError:
+                    pass
+
+    def _get_pypirc_command(self):
+        """
+        Get the distutils command for interacting with PyPI configurations.
+        :return: the command.
+        """
+        from distutils.core import Distribution
+        from distutils.config import PyPIRCCommand
+        d = Distribution()
+        return PyPIRCCommand(d)
+
+    def read_configuration(self):
+        """
+        Read the PyPI access configuration as supported by distutils, getting
+        PyPI to do the actual work. This populates ``username``, ``password``,
+        ``realm`` and ``url`` attributes from the configuration.
+        """
+        # get distutils to do the work
+        c = self._get_pypirc_command()
+        c.repository = self.url
+        cfg = c._read_pypirc()
+        self.username = cfg.get('username')
+        self.password = cfg.get('password')
+        self.realm = cfg.get('realm', 'pypi')
+        self.url = cfg.get('repository', self.url)
+
+    def save_configuration(self):
+        """
+        Save the PyPI access configuration. You must have set ``username`` and
+        ``password`` attributes before calling this method.
+
+        Again, distutils is used to do the actual work.
+        """
+        self.check_credentials()
+        # get distutils to do the work
+        c = self._get_pypirc_command()
+        c._store_pypirc(self.username, self.password)
+
+    def check_credentials(self):
+        """
+        Check that ``username`` and ``password`` have been set, and raise an
+        exception if not.
+        """
+        if self.username is None or self.password is None:
+            raise DistlibException('username and password must be set')
+        pm = HTTPPasswordMgr()
+        _, netloc, _, _, _, _ = urlparse(self.url)
+        pm.add_password(self.realm, netloc, self.username, self.password)
+        self.password_handler = HTTPBasicAuthHandler(pm)
+
+    def register(self, metadata):
+        """
+        Register a distribution on PyPI, using the provided metadata.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the distribution to be
+                         registered.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        metadata.validate()
+        d = metadata.todict()
+        d[':action'] = 'verify'
+        request = self.encode_request(d.items(), [])
+        response = self.send_request(request)
+        d[':action'] = 'submit'
+        request = self.encode_request(d.items(), [])
+        return self.send_request(request)
+
+    def _reader(self, name, stream, outbuf):
+        """
+        Thread runner for reading lines of from a subprocess into a buffer.
+
+        :param name: The logical name of the stream (used for logging only).
+        :param stream: The stream to read from. This will typically a pipe
+                       connected to the output stream of a subprocess.
+        :param outbuf: The list to append the read lines to.
+        """
+        while True:
+            s = stream.readline()
+            if not s:
+                break
+            s = s.decode('utf-8').rstrip()
+            outbuf.append(s)
+            logger.debug('%s: %s' % (name, s))
+        stream.close()
+
+    def get_sign_command(self, filename, signer, sign_password,
+                         keystore=None):
+        """
+        Return a suitable command for signing a file.
+
+        :param filename: The pathname to the file to be signed.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: The signing command as a list suitable to be
+                 passed to :class:`subprocess.Popen`.
+        """
+        cmd = [self.gpg, '--status-fd', '2', '--no-tty']
+        if keystore is None:
+            keystore = self.gpg_home
+        if keystore:
+            cmd.extend(['--homedir', keystore])
+        if sign_password is not None:
+            cmd.extend(['--batch', '--passphrase-fd', '0'])
+        td = tempfile.mkdtemp()
+        sf = os.path.join(td, os.path.basename(filename) + '.asc')
+        cmd.extend(['--detach-sign', '--armor', '--local-user',
+                    signer, '--output', sf, filename])
+        logger.debug('invoking: %s', ' '.join(cmd))
+        return cmd, sf
+
+    def run_command(self, cmd, input_data=None):
+        """
+        Run a command in a child process , passing it any input data specified.
+
+        :param cmd: The command to run.
+        :param input_data: If specified, this must be a byte string containing
+                           data to be sent to the child process.
+        :return: A tuple consisting of the subprocess' exit code, a list of
+                 lines read from the subprocess' ``stdout``, and a list of
+                 lines read from the subprocess' ``stderr``.
+        """
+        kwargs = {
+            'stdout': subprocess.PIPE,
+            'stderr': subprocess.PIPE,
+        }
+        if input_data is not None:
+            kwargs['stdin'] = subprocess.PIPE
+        stdout = []
+        stderr = []
+        p = subprocess.Popen(cmd, **kwargs)
+        # We don't use communicate() here because we may need to
+        # get clever with interacting with the command
+        t1 = Thread(target=self._reader, args=('stdout', p.stdout, stdout))
+        t1.start()
+        t2 = Thread(target=self._reader, args=('stderr', p.stderr, stderr))
+        t2.start()
+        if input_data is not None:
+            p.stdin.write(input_data)
+            p.stdin.close()
+
+        p.wait()
+        t1.join()
+        t2.join()
+        return p.returncode, stdout, stderr
+
+    def sign_file(self, filename, signer, sign_password, keystore=None):
+        """
+        Sign a file.
+
+        :param filename: The pathname to the file to be signed.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param keystore: The path to a directory which contains the keys
+                         used in signing. If not specified, the instance's
+                         ``gpg_home`` attribute is used instead.
+        :return: The absolute pathname of the file where the signature is
+                 stored.
+        """
+        cmd, sig_file = self.get_sign_command(filename, signer, sign_password,
+                                              keystore)
+        rc, stdout, stderr = self.run_command(cmd,
+                                              sign_password.encode('utf-8'))
+        if rc != 0:
+            raise DistlibException('sign command failed with error '
+                                   'code %s' % rc)
+        return sig_file
+
+    def upload_file(self, metadata, filename, signer=None, sign_password=None,
+                    filetype='sdist', pyversion='source', keystore=None):
+        """
+        Upload a release file to the index.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the file to be uploaded.
+        :param filename: The pathname of the file to be uploaded.
+        :param signer: The identifier of the signer of the file.
+        :param sign_password: The passphrase for the signer's
+                              private key used for signing.
+        :param filetype: The type of the file being uploaded. This is the
+                        distutils command which produced that file, e.g.
+                        ``sdist`` or ``bdist_wheel``.
+        :param pyversion: The version of Python which the release relates
+                          to. For code compatible with any Python, this would
+                          be ``source``, otherwise it would be e.g. ``3.2``.
+        :param keystore: The path to a directory which contains the keys
+                         used in signing. If not specified, the instance's
+                         ``gpg_home`` attribute is used instead.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        if not os.path.exists(filename):
+            raise DistlibException('not found: %s' % filename)
+        metadata.validate()
+        d = metadata.todict()
+        sig_file = None
+        if signer:
+            if not self.gpg:
+                logger.warning('no signing program available - not signed')
+            else:
+                sig_file = self.sign_file(filename, signer, sign_password,
+                                          keystore)
+        with open(filename, 'rb') as f:
+            file_data = f.read()
+        md5_digest = hashlib.md5(file_data).hexdigest()
+        sha256_digest = hashlib.sha256(file_data).hexdigest()
+        d.update({
+            ':action': 'file_upload',
+            'protocol_version': '1',
+            'filetype': filetype,
+            'pyversion': pyversion,
+            'md5_digest': md5_digest,
+            'sha256_digest': sha256_digest,
+        })
+        files = [('content', os.path.basename(filename), file_data)]
+        if sig_file:
+            with open(sig_file, 'rb') as f:
+                sig_data = f.read()
+            files.append(('gpg_signature', os.path.basename(sig_file),
+                         sig_data))
+            shutil.rmtree(os.path.dirname(sig_file))
+        request = self.encode_request(d.items(), files)
+        return self.send_request(request)
+
+    def upload_documentation(self, metadata, doc_dir):
+        """
+        Upload documentation to the index.
+
+        :param metadata: A :class:`Metadata` instance defining at least a name
+                         and version number for the documentation to be
+                         uploaded.
+        :param doc_dir: The pathname of the directory which contains the
+                        documentation. This should be the directory that
+                        contains the ``index.html`` for the documentation.
+        :return: The HTTP response received from PyPI upon submission of the
+                request.
+        """
+        self.check_credentials()
+        if not os.path.isdir(doc_dir):
+            raise DistlibException('not a directory: %r' % doc_dir)
+        fn = os.path.join(doc_dir, 'index.html')
+        if not os.path.exists(fn):
+            raise DistlibException('not found: %r' % fn)
+        metadata.validate()
+        name, version = metadata.name, metadata.version
+        zip_data = zip_dir(doc_dir).getvalue()
+        fields = [(':action', 'doc_upload'),
+                  ('name', name), ('version', version)]
+        files = [('content', name, zip_data)]
+        request = self.encode_request(fields, files)
+        return self.send_request(request)
+
+    def get_verify_command(self, signature_filename, data_filename,
+                           keystore=None):
+        """
+        Return a suitable command for verifying a file.
+
+        :param signature_filename: The pathname to the file containing the
+                                   signature.
+        :param data_filename: The pathname to the file containing the
+                              signed data.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: The verifying command as a list suitable to be
+                 passed to :class:`subprocess.Popen`.
+        """
+        cmd = [self.gpg, '--status-fd', '2', '--no-tty']
+        if keystore is None:
+            keystore = self.gpg_home
+        if keystore:
+            cmd.extend(['--homedir', keystore])
+        cmd.extend(['--verify', signature_filename, data_filename])
+        logger.debug('invoking: %s', ' '.join(cmd))
+        return cmd
+
+    def verify_signature(self, signature_filename, data_filename,
+                         keystore=None):
+        """
+        Verify a signature for a file.
+
+        :param signature_filename: The pathname to the file containing the
+                                   signature.
+        :param data_filename: The pathname to the file containing the
+                              signed data.
+        :param keystore: The path to a directory which contains the keys
+                         used in verification. If not specified, the
+                         instance's ``gpg_home`` attribute is used instead.
+        :return: True if the signature was verified, else False.
+        """
+        if not self.gpg:
+            raise DistlibException('verification unavailable because gpg '
+                                   'unavailable')
+        cmd = self.get_verify_command(signature_filename, data_filename,
+                                      keystore)
+        rc, stdout, stderr = self.run_command(cmd)
+        if rc not in (0, 1):
+            raise DistlibException('verify command failed with error '
+                             'code %s' % rc)
+        return rc == 0
+
+    def download_file(self, url, destfile, digest=None, reporthook=None):
+        """
+        This is a convenience method for downloading a file from an URL.
+        Normally, this will be a file from the index, though currently
+        no check is made for this (i.e. a file can be downloaded from
+        anywhere).
+
+        The method is just like the :func:`urlretrieve` function in the
+        standard library, except that it allows digest computation to be
+        done during download and checking that the downloaded data
+        matched any expected value.
+
+        :param url: The URL of the file to be downloaded (assumed to be
+                    available via an HTTP GET request).
+        :param destfile: The pathname where the downloaded file is to be
+                         saved.
+        :param digest: If specified, this must be a (hasher, value)
+                       tuple, where hasher is the algorithm used (e.g.
+                       ``'md5'``) and ``value`` is the expected value.
+        :param reporthook: The same as for :func:`urlretrieve` in the
+                           standard library.
+        """
+        if digest is None:
+            digester = None
+            logger.debug('No digest specified')
+        else:
+            if isinstance(digest, (list, tuple)):
+                hasher, digest = digest
+            else:
+                hasher = 'md5'
+            digester = getattr(hashlib, hasher)()
+            logger.debug('Digest specified: %s' % digest)
+        # The following code is equivalent to urlretrieve.
+        # We need to do it this way so that we can compute the
+        # digest of the file as we go.
+        with open(destfile, 'wb') as dfp:
+            # addinfourl is not a context manager on 2.x
+            # so we have to use try/finally
+            sfp = self.send_request(Request(url))
+            try:
+                headers = sfp.info()
+                blocksize = 8192
+                size = -1
+                read = 0
+                blocknum = 0
+                if "content-length" in headers:
+                    size = int(headers["Content-Length"])
+                if reporthook:
+                    reporthook(blocknum, blocksize, size)
+                while True:
+                    block = sfp.read(blocksize)
+                    if not block:
+                        break
+                    read += len(block)
+                    dfp.write(block)
+                    if digester:
+                        digester.update(block)
+                    blocknum += 1
+                    if reporthook:
+                        reporthook(blocknum, blocksize, size)
+            finally:
+                sfp.close()
+
+        # check that we got the whole file, if we can
+        if size >= 0 and read < size:
+            raise DistlibException(
+                'retrieval incomplete: got only %d out of %d bytes'
+                % (read, size))
+        # if we have a digest, it must match.
+        if digester:
+            actual = digester.hexdigest()
+            if digest != actual:
+                raise DistlibException('%s digest mismatch for %s: expected '
+                                       '%s, got %s' % (hasher, destfile,
+                                                       digest, actual))
+            logger.debug('Digest verified: %s', digest)
+
+    def send_request(self, req):
+        """
+        Send a standard library :class:`Request` to PyPI and return its
+        response.
+
+        :param req: The request to send.
+        :return: The HTTP response from PyPI (a standard library HTTPResponse).
+        """
+        handlers = []
+        if self.password_handler:
+            handlers.append(self.password_handler)
+        if self.ssl_verifier:
+            handlers.append(self.ssl_verifier)
+        opener = build_opener(*handlers)
+        return opener.open(req)
+
+    def encode_request(self, fields, files):
+        """
+        Encode fields and files for posting to an HTTP server.
+
+        :param fields: The fields to send as a list of (fieldname, value)
+                       tuples.
+        :param files: The files to send as a list of (fieldname, filename,
+                      file_bytes) tuple.
+        """
+        # Adapted from packaging, which in turn was adapted from
+        # http://code.activestate.com/recipes/146306
+
+        parts = []
+        boundary = self.boundary
+        for k, values in fields:
+            if not isinstance(values, (list, tuple)):
+                values = [values]
+
+            for v in values:
+                parts.extend((
+                    b'--' + boundary,
+                    ('Content-Disposition: form-data; name="%s"' %
+                     k).encode('utf-8'),
+                    b'',
+                    v.encode('utf-8')))
+        for key, filename, value in files:
+            parts.extend((
+                b'--' + boundary,
+                ('Content-Disposition: form-data; name="%s"; filename="%s"' %
+                 (key, filename)).encode('utf-8'),
+                b'',
+                value))
+
+        parts.extend((b'--' + boundary + b'--', b''))
+
+        body = b'\r\n'.join(parts)
+        ct = b'multipart/form-data; boundary=' + boundary
+        headers = {
+            'Content-type': ct,
+            'Content-length': str(len(body))
+        }
+        return Request(self.url, body, headers)
+
+    def search(self, terms, operator=None):
+        if isinstance(terms, string_types):
+            terms = {'name': terms}
+        if self.rpc_proxy is None:
+            self.rpc_proxy = ServerProxy(self.url, timeout=3.0)
+        return self.rpc_proxy.search(terms, operator or 'and')
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/locators.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/locators.py
new file mode 100644
index 0000000..14789ef
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/locators.py
@@ -0,0 +1,1283 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2015 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+
+import gzip
+from io import BytesIO
+import json
+import logging
+import os
+import posixpath
+import re
+try:
+    import threading
+except ImportError:  # pragma: no cover
+    import dummy_threading as threading
+import zlib
+
+from . import DistlibException
+from .compat import (urljoin, urlparse, urlunparse, url2pathname, pathname2url,
+                     queue, quote, unescape, string_types, build_opener,
+                     HTTPRedirectHandler as BaseRedirectHandler, text_type,
+                     Request, HTTPError, URLError)
+from .database import Distribution, DistributionPath, make_dist
+from .metadata import Metadata
+from .util import (cached_property, parse_credentials, ensure_slash,
+                   split_filename, get_project_data, parse_requirement,
+                   parse_name_and_version, ServerProxy, normalize_name)
+from .version import get_scheme, UnsupportedVersionError
+from .wheel import Wheel, is_compatible
+
+logger = logging.getLogger(__name__)
+
+HASHER_HASH = re.compile('^(\w+)=([a-f0-9]+)')
+CHARSET = re.compile(r';\s*charset\s*=\s*(.*)\s*$', re.I)
+HTML_CONTENT_TYPE = re.compile('text/html|application/x(ht)?ml')
+DEFAULT_INDEX = 'https://pypi.python.org/pypi'
+
+def get_all_distribution_names(url=None):
+    """
+    Return all distribution names known by an index.
+    :param url: The URL of the index.
+    :return: A list of all known distribution names.
+    """
+    if url is None:
+        url = DEFAULT_INDEX
+    client = ServerProxy(url, timeout=3.0)
+    return client.list_packages()
+
+class RedirectHandler(BaseRedirectHandler):
+    """
+    A class to work around a bug in some Python 3.2.x releases.
+    """
+    # There's a bug in the base version for some 3.2.x
+    # (e.g. 3.2.2 on Ubuntu Oneiric). If a Location header
+    # returns e.g. /abc, it bails because it says the scheme ''
+    # is bogus, when actually it should use the request's
+    # URL for the scheme. See Python issue #13696.
+    def http_error_302(self, req, fp, code, msg, headers):
+        # Some servers (incorrectly) return multiple Location headers
+        # (so probably same goes for URI).  Use first header.
+        newurl = None
+        for key in ('location', 'uri'):
+            if key in headers:
+                newurl = headers[key]
+                break
+        if newurl is None:
+            return
+        urlparts = urlparse(newurl)
+        if urlparts.scheme == '':
+            newurl = urljoin(req.get_full_url(), newurl)
+            if hasattr(headers, 'replace_header'):
+                headers.replace_header(key, newurl)
+            else:
+                headers[key] = newurl
+        return BaseRedirectHandler.http_error_302(self, req, fp, code, msg,
+                                                  headers)
+
+    http_error_301 = http_error_303 = http_error_307 = http_error_302
+
+class Locator(object):
+    """
+    A base class for locators - things that locate distributions.
+    """
+    source_extensions = ('.tar.gz', '.tar.bz2', '.tar', '.zip', '.tgz', '.tbz')
+    binary_extensions = ('.egg', '.exe', '.whl')
+    excluded_extensions = ('.pdf',)
+
+    # A list of tags indicating which wheels you want to match. The default
+    # value of None matches against the tags compatible with the running
+    # Python. If you want to match other values, set wheel_tags on a locator
+    # instance to a list of tuples (pyver, abi, arch) which you want to match.
+    wheel_tags = None
+
+    downloadable_extensions = source_extensions + ('.whl',)
+
+    def __init__(self, scheme='default'):
+        """
+        Initialise an instance.
+        :param scheme: Because locators look for most recent versions, they
+                       need to know the version scheme to use. This specifies
+                       the current PEP-recommended scheme - use ``'legacy'``
+                       if you need to support existing distributions on PyPI.
+        """
+        self._cache = {}
+        self.scheme = scheme
+        # Because of bugs in some of the handlers on some of the platforms,
+        # we use our own opener rather than just using urlopen.
+        self.opener = build_opener(RedirectHandler())
+        # If get_project() is called from locate(), the matcher instance
+        # is set from the requirement passed to locate(). See issue #18 for
+        # why this can be useful to know.
+        self.matcher = None
+        self.errors = queue.Queue()
+
+    def get_errors(self):
+        """
+        Return any errors which have occurred.
+        """
+        result = []
+        while not self.errors.empty():  # pragma: no cover
+            try:
+                e = self.errors.get(False)
+                result.append(e)
+            except self.errors.Empty:
+                continue
+            self.errors.task_done()
+        return result
+
+    def clear_errors(self):
+        """
+        Clear any errors which may have been logged.
+        """
+        # Just get the errors and throw them away
+        self.get_errors()
+
+    def clear_cache(self):
+        self._cache.clear()
+
+    def _get_scheme(self):
+        return self._scheme
+
+    def _set_scheme(self, value):
+        self._scheme = value
+
+    scheme = property(_get_scheme, _set_scheme)
+
+    def _get_project(self, name):
+        """
+        For a given project, get a dictionary mapping available versions to Distribution
+        instances.
+
+        This should be implemented in subclasses.
+
+        If called from a locate() request, self.matcher will be set to a
+        matcher for the requirement to satisfy, otherwise it will be None.
+        """
+        raise NotImplementedError('Please implement in the subclass')
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Please implement in the subclass')
+
+    def get_project(self, name):
+        """
+        For a given project, get a dictionary mapping available versions to Distribution
+        instances.
+
+        This calls _get_project to do all the work, and just implements a caching layer on top.
+        """
+        if self._cache is None:
+            result = self._get_project(name)
+        elif name in self._cache:
+            result = self._cache[name]
+        else:
+            self.clear_errors()
+            result = self._get_project(name)
+            self._cache[name] = result
+        return result
+
+    def score_url(self, url):
+        """
+        Give an url a score which can be used to choose preferred URLs
+        for a given project release.
+        """
+        t = urlparse(url)
+        basename = posixpath.basename(t.path)
+        compatible = True
+        is_wheel = basename.endswith('.whl')
+        if is_wheel:
+            compatible = is_compatible(Wheel(basename), self.wheel_tags)
+        return (t.scheme != 'https', 'pypi.python.org' in t.netloc,
+                is_wheel, compatible, basename)
+
+    def prefer_url(self, url1, url2):
+        """
+        Choose one of two URLs where both are candidates for distribution
+        archives for the same version of a distribution (for example,
+        .tar.gz vs. zip).
+
+        The current implementation favours https:// URLs over http://, archives
+        from PyPI over those from other locations, wheel compatibility (if a
+        wheel) and then the archive name.
+        """
+        result = url2
+        if url1:
+            s1 = self.score_url(url1)
+            s2 = self.score_url(url2)
+            if s1 > s2:
+                result = url1
+            if result != url2:
+                logger.debug('Not replacing %r with %r', url1, url2)
+            else:
+                logger.debug('Replacing %r with %r', url1, url2)
+        return result
+
+    def split_filename(self, filename, project_name):
+        """
+        Attempt to split a filename in project name, version and Python version.
+        """
+        return split_filename(filename, project_name)
+
+    def convert_url_to_download_info(self, url, project_name):
+        """
+        See if a URL is a candidate for a download URL for a project (the URL
+        has typically been scraped from an HTML page).
+
+        If it is, a dictionary is returned with keys "name", "version",
+        "filename" and "url"; otherwise, None is returned.
+        """
+        def same_project(name1, name2):
+            return normalize_name(name1) == normalize_name(name2)
+
+        result = None
+        scheme, netloc, path, params, query, frag = urlparse(url)
+        if frag.lower().startswith('egg='):
+            logger.debug('%s: version hint in fragment: %r',
+                         project_name, frag)
+        m = HASHER_HASH.match(frag)
+        if m:
+            algo, digest = m.groups()
+        else:
+            algo, digest = None, None
+        origpath = path
+        if path and path[-1] == '/':
+            path = path[:-1]
+        if path.endswith('.whl'):
+            try:
+                wheel = Wheel(path)
+                if is_compatible(wheel, self.wheel_tags):
+                    if project_name is None:
+                        include = True
+                    else:
+                        include = same_project(wheel.name, project_name)
+                    if include:
+                        result = {
+                            'name': wheel.name,
+                            'version': wheel.version,
+                            'filename': wheel.filename,
+                            'url': urlunparse((scheme, netloc, origpath,
+                                               params, query, '')),
+                            'python-version': ', '.join(
+                                ['.'.join(list(v[2:])) for v in wheel.pyver]),
+                        }
+            except Exception as e:  # pragma: no cover
+                logger.warning('invalid path for wheel: %s', path)
+        elif path.endswith(self.downloadable_extensions):
+            path = filename = posixpath.basename(path)
+            for ext in self.downloadable_extensions:
+                if path.endswith(ext):
+                    path = path[:-len(ext)]
+                    t = self.split_filename(path, project_name)
+                    if not t:
+                        logger.debug('No match for project/version: %s', path)
+                    else:
+                        name, version, pyver = t
+                        if not project_name or same_project(project_name, name):
+                            result = {
+                                'name': name,
+                                'version': version,
+                                'filename': filename,
+                                'url': urlunparse((scheme, netloc, origpath,
+                                                   params, query, '')),
+                                #'packagetype': 'sdist',
+                            }
+                            if pyver:
+                                result['python-version'] = pyver
+                    break
+        if result and algo:
+            result['%s_digest' % algo] = digest
+        return result
+
+    def _get_digest(self, info):
+        """
+        Get a digest from a dictionary by looking at keys of the form
+        'algo_digest'.
+
+        Returns a 2-tuple (algo, digest) if found, else None. Currently
+        looks only for SHA256, then MD5.
+        """
+        result = None
+        for algo in ('sha256', 'md5'):
+            key = '%s_digest' % algo
+            if key in info:
+                result = (algo, info[key])
+                break
+        return result
+
+    def _update_version_data(self, result, info):
+        """
+        Update a result dictionary (the final result from _get_project) with a
+        dictionary for a specific version, which typically holds information
+        gleaned from a filename or URL for an archive for the distribution.
+        """
+        name = info.pop('name')
+        version = info.pop('version')
+        if version in result:
+            dist = result[version]
+            md = dist.metadata
+        else:
+            dist = make_dist(name, version, scheme=self.scheme)
+            md = dist.metadata
+        dist.digest = digest = self._get_digest(info)
+        url = info['url']
+        result['digests'][url] = digest
+        if md.source_url != info['url']:
+            md.source_url = self.prefer_url(md.source_url, url)
+            result['urls'].setdefault(version, set()).add(url)
+        dist.locator = self
+        result[version] = dist
+
+    def locate(self, requirement, prereleases=False):
+        """
+        Find the most recent distribution which matches the given
+        requirement.
+
+        :param requirement: A requirement of the form 'foo (1.0)' or perhaps
+                            'foo (>= 1.0, < 2.0, != 1.3)'
+        :param prereleases: If ``True``, allow pre-release versions
+                            to be located. Otherwise, pre-release versions
+                            are not returned.
+        :return: A :class:`Distribution` instance, or ``None`` if no such
+                 distribution could be located.
+        """
+        result = None
+        r = parse_requirement(requirement)
+        if r is None:
+            raise DistlibException('Not a valid requirement: %r' % requirement)
+        scheme = get_scheme(self.scheme)
+        self.matcher = matcher = scheme.matcher(r.requirement)
+        logger.debug('matcher: %s (%s)', matcher, type(matcher).__name__)
+        versions = self.get_project(r.name)
+        if len(versions) > 2:   # urls and digests keys are present
+            # sometimes, versions are invalid
+            slist = []
+            vcls = matcher.version_class
+            for k in versions:
+                if k in ('urls', 'digests'):
+                    continue
+                try:
+                    if not matcher.match(k):
+                        logger.debug('%s did not match %r', matcher, k)
+                    else:
+                        if prereleases or not vcls(k).is_prerelease:
+                            slist.append(k)
+                        else:
+                            logger.debug('skipping pre-release '
+                                         'version %s of %s', k, matcher.name)
+                except Exception:  # pragma: no cover
+                    logger.warning('error matching %s with %r', matcher, k)
+                    pass # slist.append(k)
+            if len(slist) > 1:
+                slist = sorted(slist, key=scheme.key)
+            if slist:
+                logger.debug('sorted list: %s', slist)
+                version = slist[-1]
+                result = versions[version]
+        if result:
+            if r.extras:
+                result.extras = r.extras
+            result.download_urls = versions.get('urls', {}).get(version, set())
+            d = {}
+            sd = versions.get('digests', {})
+            for url in result.download_urls:
+                if url in sd:
+                    d[url] = sd[url]
+            result.digests = d
+        self.matcher = None
+        return result
+
+
+class PyPIRPCLocator(Locator):
+    """
+    This locator uses XML-RPC to locate distributions. It therefore
+    cannot be used with simple mirrors (that only mirror file content).
+    """
+    def __init__(self, url, **kwargs):
+        """
+        Initialise an instance.
+
+        :param url: The URL to use for XML-RPC.
+        :param kwargs: Passed to the superclass constructor.
+        """
+        super(PyPIRPCLocator, self).__init__(**kwargs)
+        self.base_url = url
+        self.client = ServerProxy(url, timeout=3.0)
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        return set(self.client.list_packages())
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        versions = self.client.package_releases(name, True)
+        for v in versions:
+            urls = self.client.release_urls(name, v)
+            data = self.client.release_data(name, v)
+            metadata = Metadata(scheme=self.scheme)
+            metadata.name = data['name']
+            metadata.version = data['version']
+            metadata.license = data.get('license')
+            metadata.keywords = data.get('keywords', [])
+            metadata.summary = data.get('summary')
+            dist = Distribution(metadata)
+            if urls:
+                info = urls[0]
+                metadata.source_url = info['url']
+                dist.digest = self._get_digest(info)
+                dist.locator = self
+                result[v] = dist
+                for info in urls:
+                    url = info['url']
+                    digest = self._get_digest(info)
+                    result['urls'].setdefault(v, set()).add(url)
+                    result['digests'][url] = digest
+        return result
+
+class PyPIJSONLocator(Locator):
+    """
+    This locator uses PyPI's JSON interface. It's very limited in functionality
+    and probably not worth using.
+    """
+    def __init__(self, url, **kwargs):
+        super(PyPIJSONLocator, self).__init__(**kwargs)
+        self.base_url = ensure_slash(url)
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Not available from this locator')
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        url = urljoin(self.base_url, '%s/json' % quote(name))
+        try:
+            resp = self.opener.open(url)
+            data = resp.read().decode() # for now
+            d = json.loads(data)
+            md = Metadata(scheme=self.scheme)
+            data = d['info']
+            md.name = data['name']
+            md.version = data['version']
+            md.license = data.get('license')
+            md.keywords = data.get('keywords', [])
+            md.summary = data.get('summary')
+            dist = Distribution(md)
+            dist.locator = self
+            urls = d['urls']
+            result[md.version] = dist
+            for info in d['urls']:
+                url = info['url']
+                dist.download_urls.add(url)
+                dist.digests[url] = self._get_digest(info)
+                result['urls'].setdefault(md.version, set()).add(url)
+                result['digests'][url] = self._get_digest(info)
+            # Now get other releases
+            for version, infos in d['releases'].items():
+                if version == md.version:
+                    continue    # already done
+                omd = Metadata(scheme=self.scheme)
+                omd.name = md.name
+                omd.version = version
+                odist = Distribution(omd)
+                odist.locator = self
+                result[version] = odist
+                for info in infos:
+                    url = info['url']
+                    odist.download_urls.add(url)
+                    odist.digests[url] = self._get_digest(info)
+                    result['urls'].setdefault(version, set()).add(url)
+                    result['digests'][url] = self._get_digest(info)
+#            for info in urls:
+#                md.source_url = info['url']
+#                dist.digest = self._get_digest(info)
+#                dist.locator = self
+#                for info in urls:
+#                    url = info['url']
+#                    result['urls'].setdefault(md.version, set()).add(url)
+#                    result['digests'][url] = self._get_digest(info)
+        except Exception as e:
+            self.errors.put(text_type(e))
+            logger.exception('JSON fetch failed: %s', e)
+        return result
+
+
+class Page(object):
+    """
+    This class represents a scraped HTML page.
+    """
+    # The following slightly hairy-looking regex just looks for the contents of
+    # an anchor link, which has an attribute "href" either immediately preceded
+    # or immediately followed by a "rel" attribute. The attribute values can be
+    # declared with double quotes, single quotes or no quotes - which leads to
+    # the length of the expression.
+    _href = re.compile("""
+(rel\s*=\s*(?:"(?P<rel1>[^"]*)"|'(?P<rel2>[^']*)'|(?P<rel3>[^>\s\n]*))\s+)?
+href\s*=\s*(?:"(?P<url1>[^"]*)"|'(?P<url2>[^']*)'|(?P<url3>[^>\s\n]*))
+(\s+rel\s*=\s*(?:"(?P<rel4>[^"]*)"|'(?P<rel5>[^']*)'|(?P<rel6>[^>\s\n]*)))?
+""", re.I | re.S | re.X)
+    _base = re.compile(r"""<base\s+href\s*=\s*['"]?([^'">]+)""", re.I | re.S)
+
+    def __init__(self, data, url):
+        """
+        Initialise an instance with the Unicode page contents and the URL they
+        came from.
+        """
+        self.data = data
+        self.base_url = self.url = url
+        m = self._base.search(self.data)
+        if m:
+            self.base_url = m.group(1)
+
+    _clean_re = re.compile(r'[^a-z0-9$&+,/:;=?@.#%_\\|-]', re.I)
+
+    @cached_property
+    def links(self):
+        """
+        Return the URLs of all the links on a page together with information
+        about their "rel" attribute, for determining which ones to treat as
+        downloads and which ones to queue for further scraping.
+        """
+        def clean(url):
+            "Tidy up an URL."
+            scheme, netloc, path, params, query, frag = urlparse(url)
+            return urlunparse((scheme, netloc, quote(path),
+                               params, query, frag))
+
+        result = set()
+        for match in self._href.finditer(self.data):
+            d = match.groupdict('')
+            rel = (d['rel1'] or d['rel2'] or d['rel3'] or
+                   d['rel4'] or d['rel5'] or d['rel6'])
+            url = d['url1'] or d['url2'] or d['url3']
+            url = urljoin(self.base_url, url)
+            url = unescape(url)
+            url = self._clean_re.sub(lambda m: '%%%2x' % ord(m.group(0)), url)
+            result.add((url, rel))
+        # We sort the result, hoping to bring the most recent versions
+        # to the front
+        result = sorted(result, key=lambda t: t[0], reverse=True)
+        return result
+
+
+class SimpleScrapingLocator(Locator):
+    """
+    A locator which scrapes HTML pages to locate downloads for a distribution.
+    This runs multiple threads to do the I/O; performance is at least as good
+    as pip's PackageFinder, which works in an analogous fashion.
+    """
+
+    # These are used to deal with various Content-Encoding schemes.
+    decoders = {
+        'deflate': zlib.decompress,
+        'gzip': lambda b: gzip.GzipFile(fileobj=BytesIO(d)).read(),
+        'none': lambda b: b,
+    }
+
+    def __init__(self, url, timeout=None, num_workers=10, **kwargs):
+        """
+        Initialise an instance.
+        :param url: The root URL to use for scraping.
+        :param timeout: The timeout, in seconds, to be applied to requests.
+                        This defaults to ``None`` (no timeout specified).
+        :param num_workers: The number of worker threads you want to do I/O,
+                            This defaults to 10.
+        :param kwargs: Passed to the superclass.
+        """
+        super(SimpleScrapingLocator, self).__init__(**kwargs)
+        self.base_url = ensure_slash(url)
+        self.timeout = timeout
+        self._page_cache = {}
+        self._seen = set()
+        self._to_fetch = queue.Queue()
+        self._bad_hosts = set()
+        self.skip_externals = False
+        self.num_workers = num_workers
+        self._lock = threading.RLock()
+        # See issue #45: we need to be resilient when the locator is used
+        # in a thread, e.g. with concurrent.futures. We can't use self._lock
+        # as it is for coordinating our internal threads - the ones created
+        # in _prepare_threads.
+        self._gplock = threading.RLock()
+
+    def _prepare_threads(self):
+        """
+        Threads are created only when get_project is called, and terminate
+        before it returns. They are there primarily to parallelise I/O (i.e.
+        fetching web pages).
+        """
+        self._threads = []
+        for i in range(self.num_workers):
+            t = threading.Thread(target=self._fetch)
+            t.setDaemon(True)
+            t.start()
+            self._threads.append(t)
+
+    def _wait_threads(self):
+        """
+        Tell all the threads to terminate (by sending a sentinel value) and
+        wait for them to do so.
+        """
+        # Note that you need two loops, since you can't say which
+        # thread will get each sentinel
+        for t in self._threads:
+            self._to_fetch.put(None)    # sentinel
+        for t in self._threads:
+            t.join()
+        self._threads = []
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        with self._gplock:
+            self.result = result
+            self.project_name = name
+            url = urljoin(self.base_url, '%s/' % quote(name))
+            self._seen.clear()
+            self._page_cache.clear()
+            self._prepare_threads()
+            try:
+                logger.debug('Queueing %s', url)
+                self._to_fetch.put(url)
+                self._to_fetch.join()
+            finally:
+                self._wait_threads()
+            del self.result
+        return result
+
+    platform_dependent = re.compile(r'\b(linux-(i\d86|x86_64|arm\w+)|'
+                                    r'win(32|-amd64)|macosx-?\d+)\b', re.I)
+
+    def _is_platform_dependent(self, url):
+        """
+        Does an URL refer to a platform-specific download?
+        """
+        return self.platform_dependent.search(url)
+
+    def _process_download(self, url):
+        """
+        See if an URL is a suitable download for a project.
+
+        If it is, register information in the result dictionary (for
+        _get_project) about the specific version it's for.
+
+        Note that the return value isn't actually used other than as a boolean
+        value.
+        """
+        if self._is_platform_dependent(url):
+            info = None
+        else:
+            info = self.convert_url_to_download_info(url, self.project_name)
+        logger.debug('process_download: %s -> %s', url, info)
+        if info:
+            with self._lock:    # needed because self.result is shared
+                self._update_version_data(self.result, info)
+        return info
+
+    def _should_queue(self, link, referrer, rel):
+        """
+        Determine whether a link URL from a referring page and with a
+        particular "rel" attribute should be queued for scraping.
+        """
+        scheme, netloc, path, _, _, _ = urlparse(link)
+        if path.endswith(self.source_extensions + self.binary_extensions +
+                         self.excluded_extensions):
+            result = False
+        elif self.skip_externals and not link.startswith(self.base_url):
+            result = False
+        elif not referrer.startswith(self.base_url):
+            result = False
+        elif rel not in ('homepage', 'download'):
+            result = False
+        elif scheme not in ('http', 'https', 'ftp'):
+            result = False
+        elif self._is_platform_dependent(link):
+            result = False
+        else:
+            host = netloc.split(':', 1)[0]
+            if host.lower() == 'localhost':
+                result = False
+            else:
+                result = True
+        logger.debug('should_queue: %s (%s) from %s -> %s', link, rel,
+                     referrer, result)
+        return result
+
+    def _fetch(self):
+        """
+        Get a URL to fetch from the work queue, get the HTML page, examine its
+        links for download candidates and candidates for further scraping.
+
+        This is a handy method to run in a thread.
+        """
+        while True:
+            url = self._to_fetch.get()
+            try:
+                if url:
+                    page = self.get_page(url)
+                    if page is None:    # e.g. after an error
+                        continue
+                    for link, rel in page.links:
+                        if link not in self._seen:
+                            self._seen.add(link)
+                            if (not self._process_download(link) and
+                                self._should_queue(link, url, rel)):
+                                logger.debug('Queueing %s from %s', link, url)
+                                self._to_fetch.put(link)
+            except Exception as e:  # pragma: no cover
+                self.errors.put(text_type(e))
+            finally:
+                # always do this, to avoid hangs :-)
+                self._to_fetch.task_done()
+            if not url:
+                #logger.debug('Sentinel seen, quitting.')
+                break
+
+    def get_page(self, url):
+        """
+        Get the HTML for an URL, possibly from an in-memory cache.
+
+        XXX TODO Note: this cache is never actually cleared. It's assumed that
+        the data won't get stale over the lifetime of a locator instance (not
+        necessarily true for the default_locator).
+        """
+        # http://peak.telecommunity.com/DevCenter/EasyInstall#package-index-api
+        scheme, netloc, path, _, _, _ = urlparse(url)
+        if scheme == 'file' and os.path.isdir(url2pathname(path)):
+            url = urljoin(ensure_slash(url), 'index.html')
+
+        if url in self._page_cache:
+            result = self._page_cache[url]
+            logger.debug('Returning %s from cache: %s', url, result)
+        else:
+            host = netloc.split(':', 1)[0]
+            result = None
+            if host in self._bad_hosts:
+                logger.debug('Skipping %s due to bad host %s', url, host)
+            else:
+                req = Request(url, headers={'Accept-encoding': 'identity'})
+                try:
+                    logger.debug('Fetching %s', url)
+                    resp = self.opener.open(req, timeout=self.timeout)
+                    logger.debug('Fetched %s', url)
+                    headers = resp.info()
+                    content_type = headers.get('Content-Type', '')
+                    if HTML_CONTENT_TYPE.match(content_type):
+                        final_url = resp.geturl()
+                        data = resp.read()
+                        encoding = headers.get('Content-Encoding')
+                        if encoding:
+                            decoder = self.decoders[encoding]   # fail if not found
+                            data = decoder(data)
+                        encoding = 'utf-8'
+                        m = CHARSET.search(content_type)
+                        if m:
+                            encoding = m.group(1)
+                        try:
+                            data = data.decode(encoding)
+                        except UnicodeError:  # pragma: no cover
+                            data = data.decode('latin-1')    # fallback
+                        result = Page(data, final_url)
+                        self._page_cache[final_url] = result
+                except HTTPError as e:
+                    if e.code != 404:
+                        logger.exception('Fetch failed: %s: %s', url, e)
+                except URLError as e:  # pragma: no cover
+                    logger.exception('Fetch failed: %s: %s', url, e)
+                    with self._lock:
+                        self._bad_hosts.add(host)
+                except Exception as e:  # pragma: no cover
+                    logger.exception('Fetch failed: %s: %s', url, e)
+                finally:
+                    self._page_cache[url] = result   # even if None (failure)
+        return result
+
+    _distname_re = re.compile('<a href=[^>]*>([^<]+)<')
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        page = self.get_page(self.base_url)
+        if not page:
+            raise DistlibException('Unable to get %s' % self.base_url)
+        for match in self._distname_re.finditer(page.data):
+            result.add(match.group(1))
+        return result
+
+class DirectoryLocator(Locator):
+    """
+    This class locates distributions in a directory tree.
+    """
+
+    def __init__(self, path, **kwargs):
+        """
+        Initialise an instance.
+        :param path: The root of the directory tree to search.
+        :param kwargs: Passed to the superclass constructor,
+                       except for:
+                       * recursive - if True (the default), subdirectories are
+                         recursed into. If False, only the top-level directory
+                         is searched,
+        """
+        self.recursive = kwargs.pop('recursive', True)
+        super(DirectoryLocator, self).__init__(**kwargs)
+        path = os.path.abspath(path)
+        if not os.path.isdir(path):  # pragma: no cover
+            raise DistlibException('Not a directory: %r' % path)
+        self.base_dir = path
+
+    def should_include(self, filename, parent):
+        """
+        Should a filename be considered as a candidate for a distribution
+        archive? As well as the filename, the directory which contains it
+        is provided, though not used by the current implementation.
+        """
+        return filename.endswith(self.downloadable_extensions)
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        for root, dirs, files in os.walk(self.base_dir):
+            for fn in files:
+                if self.should_include(fn, root):
+                    fn = os.path.join(root, fn)
+                    url = urlunparse(('file', '',
+                                      pathname2url(os.path.abspath(fn)),
+                                      '', '', ''))
+                    info = self.convert_url_to_download_info(url, name)
+                    if info:
+                        self._update_version_data(result, info)
+            if not self.recursive:
+                break
+        return result
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        for root, dirs, files in os.walk(self.base_dir):
+            for fn in files:
+                if self.should_include(fn, root):
+                    fn = os.path.join(root, fn)
+                    url = urlunparse(('file', '',
+                                      pathname2url(os.path.abspath(fn)),
+                                      '', '', ''))
+                    info = self.convert_url_to_download_info(url, None)
+                    if info:
+                        result.add(info['name'])
+            if not self.recursive:
+                break
+        return result
+
+class JSONLocator(Locator):
+    """
+    This locator uses special extended metadata (not available on PyPI) and is
+    the basis of performant dependency resolution in distlib. Other locators
+    require archive downloads before dependencies can be determined! As you
+    might imagine, that can be slow.
+    """
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        raise NotImplementedError('Not available from this locator')
+
+    def _get_project(self, name):
+        result = {'urls': {}, 'digests': {}}
+        data = get_project_data(name)
+        if data:
+            for info in data.get('files', []):
+                if info['ptype'] != 'sdist' or info['pyversion'] != 'source':
+                    continue
+                # We don't store summary in project metadata as it makes
+                # the data bigger for no benefit during dependency
+                # resolution
+                dist = make_dist(data['name'], info['version'],
+                                 summary=data.get('summary',
+                                                  'Placeholder for summary'),
+                                 scheme=self.scheme)
+                md = dist.metadata
+                md.source_url = info['url']
+                # TODO SHA256 digest
+                if 'digest' in info and info['digest']:
+                    dist.digest = ('md5', info['digest'])
+                md.dependencies = info.get('requirements', {})
+                dist.exports = info.get('exports', {})
+                result[dist.version] = dist
+                result['urls'].setdefault(dist.version, set()).add(info['url'])
+        return result
+
+class DistPathLocator(Locator):
+    """
+    This locator finds installed distributions in a path. It can be useful for
+    adding to an :class:`AggregatingLocator`.
+    """
+    def __init__(self, distpath, **kwargs):
+        """
+        Initialise an instance.
+
+        :param distpath: A :class:`DistributionPath` instance to search.
+        """
+        super(DistPathLocator, self).__init__(**kwargs)
+        assert isinstance(distpath, DistributionPath)
+        self.distpath = distpath
+
+    def _get_project(self, name):
+        dist = self.distpath.get_distribution(name)
+        if dist is None:
+            result = {'urls': {}, 'digests': {}}
+        else:
+            result = {
+                dist.version: dist,
+                'urls': {dist.version: set([dist.source_url])},
+                'digests': {dist.version: set([None])}
+            }
+        return result
+
+
+class AggregatingLocator(Locator):
+    """
+    This class allows you to chain and/or merge a list of locators.
+    """
+    def __init__(self, *locators, **kwargs):
+        """
+        Initialise an instance.
+
+        :param locators: The list of locators to search.
+        :param kwargs: Passed to the superclass constructor,
+                       except for:
+                       * merge - if False (the default), the first successful
+                         search from any of the locators is returned. If True,
+                         the results from all locators are merged (this can be
+                         slow).
+        """
+        self.merge = kwargs.pop('merge', False)
+        self.locators = locators
+        super(AggregatingLocator, self).__init__(**kwargs)
+
+    def clear_cache(self):
+        super(AggregatingLocator, self).clear_cache()
+        for locator in self.locators:
+            locator.clear_cache()
+
+    def _set_scheme(self, value):
+        self._scheme = value
+        for locator in self.locators:
+            locator.scheme = value
+
+    scheme = property(Locator.scheme.fget, _set_scheme)
+
+    def _get_project(self, name):
+        result = {}
+        for locator in self.locators:
+            d = locator.get_project(name)
+            if d:
+                if self.merge:
+                    files = result.get('urls', {})
+                    digests = result.get('digests', {})
+                    # next line could overwrite result['urls'], result['digests']
+                    result.update(d)
+                    df = result.get('urls')
+                    if files and df:
+                        for k, v in files.items():
+                            if k in df:
+                                df[k] |= v
+                            else:
+                                df[k] = v
+                    dd = result.get('digests')
+                    if digests and dd:
+                        dd.update(digests)
+                else:
+                    # See issue #18. If any dists are found and we're looking
+                    # for specific constraints, we only return something if
+                    # a match is found. For example, if a DirectoryLocator
+                    # returns just foo (1.0) while we're looking for
+                    # foo (>= 2.0), we'll pretend there was nothing there so
+                    # that subsequent locators can be queried. Otherwise we
+                    # would just return foo (1.0) which would then lead to a
+                    # failure to find foo (>= 2.0), because other locators
+                    # weren't searched. Note that this only matters when
+                    # merge=False.
+                    if self.matcher is None:
+                        found = True
+                    else:
+                        found = False
+                        for k in d:
+                            if self.matcher.match(k):
+                                found = True
+                                break
+                    if found:
+                        result = d
+                        break
+        return result
+
+    def get_distribution_names(self):
+        """
+        Return all the distribution names known to this locator.
+        """
+        result = set()
+        for locator in self.locators:
+            try:
+                result |= locator.get_distribution_names()
+            except NotImplementedError:
+                pass
+        return result
+
+
+# We use a legacy scheme simply because most of the dists on PyPI use legacy
+# versions which don't conform to PEP 426 / PEP 440.
+default_locator = AggregatingLocator(
+                    JSONLocator(),
+                    SimpleScrapingLocator('https://pypi.python.org/simple/',
+                                          timeout=3.0),
+                    scheme='legacy')
+
+locate = default_locator.locate
+
+NAME_VERSION_RE = re.compile(r'(?P<name>[\w-]+)\s*'
+                             r'\(\s*(==\s*)?(?P<ver>[^)]+)\)$')
+
+class DependencyFinder(object):
+    """
+    Locate dependencies for distributions.
+    """
+
+    def __init__(self, locator=None):
+        """
+        Initialise an instance, using the specified locator
+        to locate distributions.
+        """
+        self.locator = locator or default_locator
+        self.scheme = get_scheme(self.locator.scheme)
+
+    def add_distribution(self, dist):
+        """
+        Add a distribution to the finder. This will update internal information
+        about who provides what.
+        :param dist: The distribution to add.
+        """
+        logger.debug('adding distribution %s', dist)
+        name = dist.key
+        self.dists_by_name[name] = dist
+        self.dists[(name, dist.version)] = dist
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Add to provided: %s, %s, %s', name, version, dist)
+            self.provided.setdefault(name, set()).add((version, dist))
+
+    def remove_distribution(self, dist):
+        """
+        Remove a distribution from the finder. This will update internal
+        information about who provides what.
+        :param dist: The distribution to remove.
+        """
+        logger.debug('removing distribution %s', dist)
+        name = dist.key
+        del self.dists_by_name[name]
+        del self.dists[(name, dist.version)]
+        for p in dist.provides:
+            name, version = parse_name_and_version(p)
+            logger.debug('Remove from provided: %s, %s, %s', name, version, dist)
+            s = self.provided[name]
+            s.remove((version, dist))
+            if not s:
+                del self.provided[name]
+
+    def get_matcher(self, reqt):
+        """
+        Get a version matcher for a requirement.
+        :param reqt: The requirement
+        :type reqt: str
+        :return: A version matcher (an instance of
+                 :class:`distlib.version.Matcher`).
+        """
+        try:
+            matcher = self.scheme.matcher(reqt)
+        except UnsupportedVersionError:  # pragma: no cover
+            # XXX compat-mode if cannot read the version
+            name = reqt.split()[0]
+            matcher = self.scheme.matcher(name)
+        return matcher
+
+    def find_providers(self, reqt):
+        """
+        Find the distributions which can fulfill a requirement.
+
+        :param reqt: The requirement.
+         :type reqt: str
+        :return: A set of distribution which can fulfill the requirement.
+        """
+        matcher = self.get_matcher(reqt)
+        name = matcher.key   # case-insensitive
+        result = set()
+        provided = self.provided
+        if name in provided:
+            for version, provider in provided[name]:
+                try:
+                    match = matcher.match(version)
+                except UnsupportedVersionError:
+                    match = False
+
+                if match:
+                    result.add(provider)
+                    break
+        return result
+
+    def try_to_replace(self, provider, other, problems):
+        """
+        Attempt to replace one provider with another. This is typically used
+        when resolving dependencies from multiple sources, e.g. A requires
+        (B >= 1.0) while C requires (B >= 1.1).
+
+        For successful replacement, ``provider`` must meet all the requirements
+        which ``other`` fulfills.
+
+        :param provider: The provider we are trying to replace with.
+        :param other: The provider we're trying to replace.
+        :param problems: If False is returned, this will contain what
+                         problems prevented replacement. This is currently
+                         a tuple of the literal string 'cantreplace',
+                         ``provider``, ``other``  and the set of requirements
+                         that ``provider`` couldn't fulfill.
+        :return: True if we can replace ``other`` with ``provider``, else
+                 False.
+        """
+        rlist = self.reqts[other]
+        unmatched = set()
+        for s in rlist:
+            matcher = self.get_matcher(s)
+            if not matcher.match(provider.version):
+                unmatched.add(s)
+        if unmatched:
+            # can't replace other with provider
+            problems.add(('cantreplace', provider, other,
+                          frozenset(unmatched)))
+            result = False
+        else:
+            # can replace other with provider
+            self.remove_distribution(other)
+            del self.reqts[other]
+            for s in rlist:
+                self.reqts.setdefault(provider, set()).add(s)
+            self.add_distribution(provider)
+            result = True
+        return result
+
+    def find(self, requirement, meta_extras=None, prereleases=False):
+        """
+        Find a distribution and all distributions it depends on.
+
+        :param requirement: The requirement specifying the distribution to
+                            find, or a Distribution instance.
+        :param meta_extras: A list of meta extras such as :test:, :build: and
+                            so on.
+        :param prereleases: If ``True``, allow pre-release versions to be
+                            returned - otherwise, don't return prereleases
+                            unless they're all that's available.
+
+        Return a set of :class:`Distribution` instances and a set of
+        problems.
+
+        The distributions returned should be such that they have the
+        :attr:`required` attribute set to ``True`` if they were
+        from the ``requirement`` passed to ``find()``, and they have the
+        :attr:`build_time_dependency` attribute set to ``True`` unless they
+        are post-installation dependencies of the ``requirement``.
+
+        The problems should be a tuple consisting of the string
+        ``'unsatisfied'`` and the requirement which couldn't be satisfied
+        by any distribution known to the locator.
+        """
+
+        self.provided = {}
+        self.dists = {}
+        self.dists_by_name = {}
+        self.reqts = {}
+
+        meta_extras = set(meta_extras or [])
+        if ':*:' in meta_extras:
+            meta_extras.remove(':*:')
+            # :meta: and :run: are implicitly included
+            meta_extras |= set([':test:', ':build:', ':dev:'])
+
+        if isinstance(requirement, Distribution):
+            dist = odist = requirement
+            logger.debug('passed %s as requirement', odist)
+        else:
+            dist = odist = self.locator.locate(requirement,
+                                               prereleases=prereleases)
+            if dist is None:
+                raise DistlibException('Unable to locate %r' % requirement)
+            logger.debug('located %s', odist)
+        dist.requested = True
+        problems = set()
+        todo = set([dist])
+        install_dists = set([odist])
+        while todo:
+            dist = todo.pop()
+            name = dist.key     # case-insensitive
+            if name not in self.dists_by_name:
+                self.add_distribution(dist)
+            else:
+                #import pdb; pdb.set_trace()
+                other = self.dists_by_name[name]
+                if other != dist:
+                    self.try_to_replace(dist, other, problems)
+
+            ireqts = dist.run_requires | dist.meta_requires
+            sreqts = dist.build_requires
+            ereqts = set()
+            if dist in install_dists:
+                for key in ('test', 'build', 'dev'):
+                    e = ':%s:' % key
+                    if e in meta_extras:
+                        ereqts |= getattr(dist, '%s_requires' % key)
+            all_reqts = ireqts | sreqts | ereqts
+            for r in all_reqts:
+                providers = self.find_providers(r)
+                if not providers:
+                    logger.debug('No providers found for %r', r)
+                    provider = self.locator.locate(r, prereleases=prereleases)
+                    # If no provider is found and we didn't consider
+                    # prereleases, consider them now.
+                    if provider is None and not prereleases:
+                        provider = self.locator.locate(r, prereleases=True)
+                    if provider is None:
+                        logger.debug('Cannot satisfy %r', r)
+                        problems.add(('unsatisfied', r))
+                    else:
+                        n, v = provider.key, provider.version
+                        if (n, v) not in self.dists:
+                            todo.add(provider)
+                        providers.add(provider)
+                        if r in ireqts and dist in install_dists:
+                            install_dists.add(provider)
+                            logger.debug('Adding %s to install_dists',
+                                         provider.name_and_version)
+                for p in providers:
+                    name = p.key
+                    if name not in self.dists_by_name:
+                        self.reqts.setdefault(p, set()).add(r)
+                    else:
+                        other = self.dists_by_name[name]
+                        if other != p:
+                            # see if other can be replaced by p
+                            self.try_to_replace(p, other, problems)
+
+        dists = set(self.dists.values())
+        for dist in dists:
+            dist.build_time_dependency = dist not in install_dists
+            if dist.build_time_dependency:
+                logger.debug('%s is a build-time dependency only.',
+                             dist.name_and_version)
+        logger.debug('find done for %s', odist)
+        return dists, problems
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/manifest.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/manifest.py
new file mode 100644
index 0000000..9f03364
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/manifest.py
@@ -0,0 +1,393 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2013 Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""
+Class representing the list of files in a distribution.
+
+Equivalent to distutils.filelist, but fixes some problems.
+"""
+import fnmatch
+import logging
+import os
+import re
+import sys
+
+from . import DistlibException
+from .compat import fsdecode
+from .util import convert_path
+
+
+__all__ = ['Manifest']
+
+logger = logging.getLogger(__name__)
+
+# a \ followed by some spaces + EOL
+_COLLAPSE_PATTERN = re.compile('\\\w*\n', re.M)
+_COMMENTED_LINE = re.compile('#.*?(?=\n)|\n(?=$)', re.M | re.S)
+
+#
+# Due to the different results returned by fnmatch.translate, we need
+# to do slightly different processing for Python 2.7 and 3.2 ... this needed
+# to be brought in for Python 3.6 onwards.
+#
+_PYTHON_VERSION = sys.version_info[:2]
+
+class Manifest(object):
+    """A list of files built by on exploring the filesystem and filtered by
+    applying various patterns to what we find there.
+    """
+
+    def __init__(self, base=None):
+        """
+        Initialise an instance.
+
+        :param base: The base directory to explore under.
+        """
+        self.base = os.path.abspath(os.path.normpath(base or os.getcwd()))
+        self.prefix = self.base + os.sep
+        self.allfiles = None
+        self.files = set()
+
+    #
+    # Public API
+    #
+
+    def findall(self):
+        """Find all files under the base and set ``allfiles`` to the absolute
+        pathnames of files found.
+        """
+        from stat import S_ISREG, S_ISDIR, S_ISLNK
+
+        self.allfiles = allfiles = []
+        root = self.base
+        stack = [root]
+        pop = stack.pop
+        push = stack.append
+
+        while stack:
+            root = pop()
+            names = os.listdir(root)
+
+            for name in names:
+                fullname = os.path.join(root, name)
+
+                # Avoid excess stat calls -- just one will do, thank you!
+                stat = os.stat(fullname)
+                mode = stat.st_mode
+                if S_ISREG(mode):
+                    allfiles.append(fsdecode(fullname))
+                elif S_ISDIR(mode) and not S_ISLNK(mode):
+                    push(fullname)
+
+    def add(self, item):
+        """
+        Add a file to the manifest.
+
+        :param item: The pathname to add. This can be relative to the base.
+        """
+        if not item.startswith(self.prefix):
+            item = os.path.join(self.base, item)
+        self.files.add(os.path.normpath(item))
+
+    def add_many(self, items):
+        """
+        Add a list of files to the manifest.
+
+        :param items: The pathnames to add. These can be relative to the base.
+        """
+        for item in items:
+            self.add(item)
+
+    def sorted(self, wantdirs=False):
+        """
+        Return sorted files in directory order
+        """
+
+        def add_dir(dirs, d):
+            dirs.add(d)
+            logger.debug('add_dir added %s', d)
+            if d != self.base:
+                parent, _ = os.path.split(d)
+                assert parent not in ('', '/')
+                add_dir(dirs, parent)
+
+        result = set(self.files)    # make a copy!
+        if wantdirs:
+            dirs = set()
+            for f in result:
+                add_dir(dirs, os.path.dirname(f))
+            result |= dirs
+        return [os.path.join(*path_tuple) for path_tuple in
+                sorted(os.path.split(path) for path in result)]
+
+    def clear(self):
+        """Clear all collected files."""
+        self.files = set()
+        self.allfiles = []
+
+    def process_directive(self, directive):
+        """
+        Process a directive which either adds some files from ``allfiles`` to
+        ``files``, or removes some files from ``files``.
+
+        :param directive: The directive to process. This should be in a format
+                     compatible with distutils ``MANIFEST.in`` files:
+
+                     http://docs.python.org/distutils/sourcedist.html#commands
+        """
+        # Parse the line: split it up, make sure the right number of words
+        # is there, and return the relevant words.  'action' is always
+        # defined: it's the first word of the line.  Which of the other
+        # three are defined depends on the action; it'll be either
+        # patterns, (dir and patterns), or (dirpattern).
+        action, patterns, thedir, dirpattern = self._parse_directive(directive)
+
+        # OK, now we know that the action is valid and we have the
+        # right number of words on the line for that action -- so we
+        # can proceed with minimal error-checking.
+        if action == 'include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, anchor=True):
+                    logger.warning('no files found matching %r', pattern)
+
+        elif action == 'exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, anchor=True)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'found matching %r', pattern)
+
+        elif action == 'global-include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, anchor=False):
+                    logger.warning('no files found matching %r '
+                                   'anywhere in distribution', pattern)
+
+        elif action == 'global-exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, anchor=False)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'matching %r found anywhere in '
+                #                   'distribution', pattern)
+
+        elif action == 'recursive-include':
+            for pattern in patterns:
+                if not self._include_pattern(pattern, prefix=thedir):
+                    logger.warning('no files found matching %r '
+                                   'under directory %r', pattern, thedir)
+
+        elif action == 'recursive-exclude':
+            for pattern in patterns:
+                found = self._exclude_pattern(pattern, prefix=thedir)
+                #if not found:
+                #    logger.warning('no previously-included files '
+                #                   'matching %r found under directory %r',
+                #                   pattern, thedir)
+
+        elif action == 'graft':
+            if not self._include_pattern(None, prefix=dirpattern):
+                logger.warning('no directories found matching %r',
+                               dirpattern)
+
+        elif action == 'prune':
+            if not self._exclude_pattern(None, prefix=dirpattern):
+                logger.warning('no previously-included directories found '
+                               'matching %r', dirpattern)
+        else:   # pragma: no cover
+            # This should never happen, as it should be caught in
+            # _parse_template_line
+            raise DistlibException(
+                'invalid action %r' % action)
+
+    #
+    # Private API
+    #
+
+    def _parse_directive(self, directive):
+        """
+        Validate a directive.
+        :param directive: The directive to validate.
+        :return: A tuple of action, patterns, thedir, dir_patterns
+        """
+        words = directive.split()
+        if len(words) == 1 and words[0] not in ('include', 'exclude',
+                                                'global-include',
+                                                'global-exclude',
+                                                'recursive-include',
+                                                'recursive-exclude',
+                                                'graft', 'prune'):
+            # no action given, let's use the default 'include'
+            words.insert(0, 'include')
+
+        action = words[0]
+        patterns = thedir = dir_pattern = None
+
+        if action in ('include', 'exclude',
+                      'global-include', 'global-exclude'):
+            if len(words) < 2:
+                raise DistlibException(
+                    '%r expects <pattern1> <pattern2> ...' % action)
+
+            patterns = [convert_path(word) for word in words[1:]]
+
+        elif action in ('recursive-include', 'recursive-exclude'):
+            if len(words) < 3:
+                raise DistlibException(
+                    '%r expects <dir> <pattern1> <pattern2> ...' % action)
+
+            thedir = convert_path(words[1])
+            patterns = [convert_path(word) for word in words[2:]]
+
+        elif action in ('graft', 'prune'):
+            if len(words) != 2:
+                raise DistlibException(
+                    '%r expects a single <dir_pattern>' % action)
+
+            dir_pattern = convert_path(words[1])
+
+        else:
+            raise DistlibException('unknown action %r' % action)
+
+        return action, patterns, thedir, dir_pattern
+
+    def _include_pattern(self, pattern, anchor=True, prefix=None,
+                         is_regex=False):
+        """Select strings (presumably filenames) from 'self.files' that
+        match 'pattern', a Unix-style wildcard (glob) pattern.
+
+        Patterns are not quite the same as implemented by the 'fnmatch'
+        module: '*' and '?'  match non-special characters, where "special"
+        is platform-dependent: slash on Unix; colon, slash, and backslash on
+        DOS/Windows; and colon on Mac OS.
+
+        If 'anchor' is true (the default), then the pattern match is more
+        stringent: "*.py" will match "foo.py" but not "foo/bar.py".  If
+        'anchor' is false, both of these will match.
+
+        If 'prefix' is supplied, then only filenames starting with 'prefix'
+        (itself a pattern) and ending with 'pattern', with anything in between
+        them, will match.  'anchor' is ignored in this case.
+
+        If 'is_regex' is true, 'anchor' and 'prefix' are ignored, and
+        'pattern' is assumed to be either a string containing a regex or a
+        regex object -- no translation is done, the regex is just compiled
+        and used as-is.
+
+        Selected strings will be added to self.files.
+
+        Return True if files are found.
+        """
+        # XXX docstring lying about what the special chars are?
+        found = False
+        pattern_re = self._translate_pattern(pattern, anchor, prefix, is_regex)
+
+        # delayed loading of allfiles list
+        if self.allfiles is None:
+            self.findall()
+
+        for name in self.allfiles:
+            if pattern_re.search(name):
+                self.files.add(name)
+                found = True
+        return found
+
+    def _exclude_pattern(self, pattern, anchor=True, prefix=None,
+                         is_regex=False):
+        """Remove strings (presumably filenames) from 'files' that match
+        'pattern'.
+
+        Other parameters are the same as for 'include_pattern()', above.
+        The list 'self.files' is modified in place. Return True if files are
+        found.
+
+        This API is public to allow e.g. exclusion of SCM subdirs, e.g. when
+        packaging source distributions
+        """
+        found = False
+        pattern_re = self._translate_pattern(pattern, anchor, prefix, is_regex)
+        for f in list(self.files):
+            if pattern_re.search(f):
+                self.files.remove(f)
+                found = True
+        return found
+
+    def _translate_pattern(self, pattern, anchor=True, prefix=None,
+                           is_regex=False):
+        """Translate a shell-like wildcard pattern to a compiled regular
+        expression.
+
+        Return the compiled regex.  If 'is_regex' true,
+        then 'pattern' is directly compiled to a regex (if it's a string)
+        or just returned as-is (assumes it's a regex object).
+        """
+        if is_regex:
+            if isinstance(pattern, str):
+                return re.compile(pattern)
+            else:
+                return pattern
+
+        if _PYTHON_VERSION > (3, 2):
+            # ditch start and end characters
+            start, _, end = self._glob_to_re('_').partition('_')
+
+        if pattern:
+            pattern_re = self._glob_to_re(pattern)
+            if _PYTHON_VERSION > (3, 2):
+                assert pattern_re.startswith(start) and pattern_re.endswith(end)
+        else:
+            pattern_re = ''
+
+        base = re.escape(os.path.join(self.base, ''))
+        if prefix is not None:
+            # ditch end of pattern character
+            if _PYTHON_VERSION <= (3, 2):
+                empty_pattern = self._glob_to_re('')
+                prefix_re = self._glob_to_re(prefix)[:-len(empty_pattern)]
+            else:
+                prefix_re = self._glob_to_re(prefix)
+                assert prefix_re.startswith(start) and prefix_re.endswith(end)
+                prefix_re = prefix_re[len(start): len(prefix_re) - len(end)]
+            sep = os.sep
+            if os.sep == '\\':
+                sep = r'\\'
+            if _PYTHON_VERSION <= (3, 2):
+                pattern_re = '^' + base + sep.join((prefix_re,
+                                                    '.*' + pattern_re))
+            else:
+                pattern_re = pattern_re[len(start): len(pattern_re) - len(end)]
+                pattern_re = r'%s%s%s%s.*%s%s' % (start, base, prefix_re, sep,
+                                                  pattern_re, end)
+        else:  # no prefix -- respect anchor flag
+            if anchor:
+                if _PYTHON_VERSION <= (3, 2):
+                    pattern_re = '^' + base + pattern_re
+                else:
+                    pattern_re = r'%s%s%s' % (start, base, pattern_re[len(start):])
+
+        return re.compile(pattern_re)
+
+    def _glob_to_re(self, pattern):
+        """Translate a shell-like glob pattern to a regular expression.
+
+        Return a string containing the regex.  Differs from
+        'fnmatch.translate()' in that '*' does not match "special characters"
+        (which are platform-specific).
+        """
+        pattern_re = fnmatch.translate(pattern)
+
+        # '?' and '*' in the glob pattern become '.' and '.*' in the RE, which
+        # IMHO is wrong -- '?' and '*' aren't supposed to match slash in Unix,
+        # and by extension they shouldn't match such "special characters" under
+        # any OS.  So change all non-escaped dots in the RE to match any
+        # character except the special characters (currently: just os.sep).
+        sep = os.sep
+        if os.sep == '\\':
+            # we're using a regex to manipulate a regex, so we need
+            # to escape the backslash twice
+            sep = r'\\\\'
+        escaped = r'\1[^%s]' % sep
+        pattern_re = re.sub(r'((?<!\\)(\\\\)*)\.', escaped, pattern_re)
+        return pattern_re
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/markers.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/markers.py
new file mode 100644
index 0000000..afb19c6
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/markers.py
@@ -0,0 +1,190 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2013 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Parser for the environment markers micro-language defined in PEP 345."""
+
+import ast
+import os
+import sys
+import platform
+
+from .compat import python_implementation, string_types
+from .util import in_venv
+
+__all__ = ['interpret']
+
+
+class Evaluator(object):
+    """
+    A limited evaluator for Python expressions.
+    """
+
+    operators = {
+        'eq': lambda x, y: x == y,
+        'gt': lambda x, y: x > y,
+        'gte': lambda x, y: x >= y,
+        'in': lambda x, y: x in y,
+        'lt': lambda x, y: x < y,
+        'lte': lambda x, y: x <= y,
+        'not': lambda x: not x,
+        'noteq': lambda x, y: x != y,
+        'notin': lambda x, y: x not in y,
+    }
+
+    allowed_values = {
+        'sys_platform': sys.platform,
+        'python_version': '%s.%s' % sys.version_info[:2],
+        # parsing sys.platform is not reliable, but there is no other
+        # way to get e.g. 2.7.2+, and the PEP is defined with sys.version
+        'python_full_version': sys.version.split(' ', 1)[0],
+        'os_name': os.name,
+        'platform_in_venv': str(in_venv()),
+        'platform_release': platform.release(),
+        'platform_version': platform.version(),
+        'platform_machine': platform.machine(),
+        'platform_python_implementation': python_implementation(),
+    }
+
+    def __init__(self, context=None):
+        """
+        Initialise an instance.
+
+        :param context: If specified, names are looked up in this mapping.
+        """
+        self.context = context or {}
+        self.source = None
+
+    def get_fragment(self, offset):
+        """
+        Get the part of the source which is causing a problem.
+        """
+        fragment_len = 10
+        s = '%r' % (self.source[offset:offset + fragment_len])
+        if offset + fragment_len < len(self.source):
+            s += '...'
+        return s
+
+    def get_handler(self, node_type):
+        """
+        Get a handler for the specified AST node type.
+        """
+        return getattr(self, 'do_%s' % node_type, None)
+
+    def evaluate(self, node, filename=None):
+        """
+        Evaluate a source string or node, using ``filename`` when
+        displaying errors.
+        """
+        if isinstance(node, string_types):
+            self.source = node
+            kwargs = {'mode': 'eval'}
+            if filename:
+                kwargs['filename'] = filename
+            try:
+                node = ast.parse(node, **kwargs)
+            except SyntaxError as e:
+                s = self.get_fragment(e.offset)
+                raise SyntaxError('syntax error %s' % s)
+        node_type = node.__class__.__name__.lower()
+        handler = self.get_handler(node_type)
+        if handler is None:
+            if self.source is None:
+                s = '(source not available)'
+            else:
+                s = self.get_fragment(node.col_offset)
+            raise SyntaxError("don't know how to evaluate %r %s" % (
+                node_type, s))
+        return handler(node)
+
+    def get_attr_key(self, node):
+        assert isinstance(node, ast.Attribute), 'attribute node expected'
+        return '%s.%s' % (node.value.id, node.attr)
+
+    def do_attribute(self, node):
+        if not isinstance(node.value, ast.Name):
+            valid = False
+        else:
+            key = self.get_attr_key(node)
+            valid = key in self.context or key in self.allowed_values
+        if not valid:
+            raise SyntaxError('invalid expression: %s' % key)
+        if key in self.context:
+            result = self.context[key]
+        else:
+            result = self.allowed_values[key]
+        return result
+
+    def do_boolop(self, node):
+        result = self.evaluate(node.values[0])
+        is_or = node.op.__class__ is ast.Or
+        is_and = node.op.__class__ is ast.And
+        assert is_or or is_and
+        if (is_and and result) or (is_or and not result):
+            for n in node.values[1:]:
+                result = self.evaluate(n)
+                if (is_or and result) or (is_and and not result):
+                    break
+        return result
+
+    def do_compare(self, node):
+        def sanity_check(lhsnode, rhsnode):
+            valid = True
+            if isinstance(lhsnode, ast.Str) and isinstance(rhsnode, ast.Str):
+                valid = False
+            #elif (isinstance(lhsnode, ast.Attribute)
+            #      and isinstance(rhsnode, ast.Attribute)):
+            #    klhs = self.get_attr_key(lhsnode)
+            #    krhs = self.get_attr_key(rhsnode)
+            #    valid = klhs != krhs
+            if not valid:
+                s = self.get_fragment(node.col_offset)
+                raise SyntaxError('Invalid comparison: %s' % s)
+
+        lhsnode = node.left
+        lhs = self.evaluate(lhsnode)
+        result = True
+        for op, rhsnode in zip(node.ops, node.comparators):
+            sanity_check(lhsnode, rhsnode)
+            op = op.__class__.__name__.lower()
+            if op not in self.operators:
+                raise SyntaxError('unsupported operation: %r' % op)
+            rhs = self.evaluate(rhsnode)
+            result = self.operators[op](lhs, rhs)
+            if not result:
+                break
+            lhs = rhs
+            lhsnode = rhsnode
+        return result
+
+    def do_expression(self, node):
+        return self.evaluate(node.body)
+
+    def do_name(self, node):
+        valid = False
+        if node.id in self.context:
+            valid = True
+            result = self.context[node.id]
+        elif node.id in self.allowed_values:
+            valid = True
+            result = self.allowed_values[node.id]
+        if not valid:
+            raise SyntaxError('invalid expression: %s' % node.id)
+        return result
+
+    def do_str(self, node):
+        return node.s
+
+
+def interpret(marker, execution_context=None):
+    """
+    Interpret a marker and return a result depending on environment.
+
+    :param marker: The marker to interpret.
+    :type marker: str
+    :param execution_context: The context used for name lookup.
+    :type execution_context: mapping
+    """
+    return Evaluator(execution_context).evaluate(marker.strip())
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/metadata.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/metadata.py
new file mode 100644
index 0000000..75bfd68
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/metadata.py
@@ -0,0 +1,1068 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""Implementation of the Metadata for Python packages PEPs.
+
+Supports all metadata formats (1.0, 1.1, 1.2, and 2.0 experimental).
+"""
+from __future__ import unicode_literals
+
+import codecs
+from email import message_from_file
+import json
+import logging
+import re
+
+
+from . import DistlibException, __version__
+from .compat import StringIO, string_types, text_type
+from .markers import interpret
+from .util import extract_by_key, get_extras
+from .version import get_scheme, PEP440_VERSION_RE
+
+logger = logging.getLogger(__name__)
+
+
+class MetadataMissingError(DistlibException):
+    """A required metadata is missing"""
+
+
+class MetadataConflictError(DistlibException):
+    """Attempt to read or write metadata fields that are conflictual."""
+
+
+class MetadataUnrecognizedVersionError(DistlibException):
+    """Unknown metadata version number."""
+
+
+class MetadataInvalidError(DistlibException):
+    """A metadata value is invalid"""
+
+# public API of this module
+__all__ = ['Metadata', 'PKG_INFO_ENCODING', 'PKG_INFO_PREFERRED_VERSION']
+
+# Encoding used for the PKG-INFO files
+PKG_INFO_ENCODING = 'utf-8'
+
+# preferred version. Hopefully will be changed
+# to 1.2 once PEP 345 is supported everywhere
+PKG_INFO_PREFERRED_VERSION = '1.1'
+
+_LINE_PREFIX_1_2 = re.compile('\n       \|')
+_LINE_PREFIX_PRE_1_2 = re.compile('\n        ')
+_241_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'License')
+
+_314_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'License', 'Classifier', 'Download-URL', 'Obsoletes',
+               'Provides', 'Requires')
+
+_314_MARKERS = ('Obsoletes', 'Provides', 'Requires', 'Classifier',
+                'Download-URL')
+
+_345_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'Maintainer', 'Maintainer-email', 'License',
+               'Classifier', 'Download-URL', 'Obsoletes-Dist',
+               'Project-URL', 'Provides-Dist', 'Requires-Dist',
+               'Requires-Python', 'Requires-External')
+
+_345_MARKERS = ('Provides-Dist', 'Requires-Dist', 'Requires-Python',
+                'Obsoletes-Dist', 'Requires-External', 'Maintainer',
+                'Maintainer-email', 'Project-URL')
+
+_426_FIELDS = ('Metadata-Version', 'Name', 'Version', 'Platform',
+               'Supported-Platform', 'Summary', 'Description',
+               'Keywords', 'Home-page', 'Author', 'Author-email',
+               'Maintainer', 'Maintainer-email', 'License',
+               'Classifier', 'Download-URL', 'Obsoletes-Dist',
+               'Project-URL', 'Provides-Dist', 'Requires-Dist',
+               'Requires-Python', 'Requires-External', 'Private-Version',
+               'Obsoleted-By', 'Setup-Requires-Dist', 'Extension',
+               'Provides-Extra')
+
+_426_MARKERS = ('Private-Version', 'Provides-Extra', 'Obsoleted-By',
+                'Setup-Requires-Dist', 'Extension')
+
+_ALL_FIELDS = set()
+_ALL_FIELDS.update(_241_FIELDS)
+_ALL_FIELDS.update(_314_FIELDS)
+_ALL_FIELDS.update(_345_FIELDS)
+_ALL_FIELDS.update(_426_FIELDS)
+
+EXTRA_RE = re.compile(r'''extra\s*==\s*("([^"]+)"|'([^']+)')''')
+
+
+def _version2fieldlist(version):
+    if version == '1.0':
+        return _241_FIELDS
+    elif version == '1.1':
+        return _314_FIELDS
+    elif version == '1.2':
+        return _345_FIELDS
+    elif version == '2.0':
+        return _426_FIELDS
+    raise MetadataUnrecognizedVersionError(version)
+
+
+def _best_version(fields):
+    """Detect the best version depending on the fields used."""
+    def _has_marker(keys, markers):
+        for marker in markers:
+            if marker in keys:
+                return True
+        return False
+
+    keys = []
+    for key, value in fields.items():
+        if value in ([], 'UNKNOWN', None):
+            continue
+        keys.append(key)
+
+    possible_versions = ['1.0', '1.1', '1.2', '2.0']
+
+    # first let's try to see if a field is not part of one of the version
+    for key in keys:
+        if key not in _241_FIELDS and '1.0' in possible_versions:
+            possible_versions.remove('1.0')
+        if key not in _314_FIELDS and '1.1' in possible_versions:
+            possible_versions.remove('1.1')
+        if key not in _345_FIELDS and '1.2' in possible_versions:
+            possible_versions.remove('1.2')
+        if key not in _426_FIELDS and '2.0' in possible_versions:
+            possible_versions.remove('2.0')
+
+    # possible_version contains qualified versions
+    if len(possible_versions) == 1:
+        return possible_versions[0]   # found !
+    elif len(possible_versions) == 0:
+        raise MetadataConflictError('Unknown metadata set')
+
+    # let's see if one unique marker is found
+    is_1_1 = '1.1' in possible_versions and _has_marker(keys, _314_MARKERS)
+    is_1_2 = '1.2' in possible_versions and _has_marker(keys, _345_MARKERS)
+    is_2_0 = '2.0' in possible_versions and _has_marker(keys, _426_MARKERS)
+    if int(is_1_1) + int(is_1_2) + int(is_2_0) > 1:
+        raise MetadataConflictError('You used incompatible 1.1/1.2/2.0 fields')
+
+    # we have the choice, 1.0, or 1.2, or 2.0
+    #   - 1.0 has a broken Summary field but works with all tools
+    #   - 1.1 is to avoid
+    #   - 1.2 fixes Summary but has little adoption
+    #   - 2.0 adds more features and is very new
+    if not is_1_1 and not is_1_2 and not is_2_0:
+        # we couldn't find any specific marker
+        if PKG_INFO_PREFERRED_VERSION in possible_versions:
+            return PKG_INFO_PREFERRED_VERSION
+    if is_1_1:
+        return '1.1'
+    if is_1_2:
+        return '1.2'
+
+    return '2.0'
+
+_ATTR2FIELD = {
+    'metadata_version': 'Metadata-Version',
+    'name': 'Name',
+    'version': 'Version',
+    'platform': 'Platform',
+    'supported_platform': 'Supported-Platform',
+    'summary': 'Summary',
+    'description': 'Description',
+    'keywords': 'Keywords',
+    'home_page': 'Home-page',
+    'author': 'Author',
+    'author_email': 'Author-email',
+    'maintainer': 'Maintainer',
+    'maintainer_email': 'Maintainer-email',
+    'license': 'License',
+    'classifier': 'Classifier',
+    'download_url': 'Download-URL',
+    'obsoletes_dist': 'Obsoletes-Dist',
+    'provides_dist': 'Provides-Dist',
+    'requires_dist': 'Requires-Dist',
+    'setup_requires_dist': 'Setup-Requires-Dist',
+    'requires_python': 'Requires-Python',
+    'requires_external': 'Requires-External',
+    'requires': 'Requires',
+    'provides': 'Provides',
+    'obsoletes': 'Obsoletes',
+    'project_url': 'Project-URL',
+    'private_version': 'Private-Version',
+    'obsoleted_by': 'Obsoleted-By',
+    'extension': 'Extension',
+    'provides_extra': 'Provides-Extra',
+}
+
+_PREDICATE_FIELDS = ('Requires-Dist', 'Obsoletes-Dist', 'Provides-Dist')
+_VERSIONS_FIELDS = ('Requires-Python',)
+_VERSION_FIELDS = ('Version',)
+_LISTFIELDS = ('Platform', 'Classifier', 'Obsoletes',
+               'Requires', 'Provides', 'Obsoletes-Dist',
+               'Provides-Dist', 'Requires-Dist', 'Requires-External',
+               'Project-URL', 'Supported-Platform', 'Setup-Requires-Dist',
+               'Provides-Extra', 'Extension')
+_LISTTUPLEFIELDS = ('Project-URL',)
+
+_ELEMENTSFIELD = ('Keywords',)
+
+_UNICODEFIELDS = ('Author', 'Maintainer', 'Summary', 'Description')
+
+_MISSING = object()
+
+_FILESAFE = re.compile('[^A-Za-z0-9.]+')
+
+
+def _get_name_and_version(name, version, for_filename=False):
+    """Return the distribution name with version.
+
+    If for_filename is true, return a filename-escaped form."""
+    if for_filename:
+        # For both name and version any runs of non-alphanumeric or '.'
+        # characters are replaced with a single '-'.  Additionally any
+        # spaces in the version string become '.'
+        name = _FILESAFE.sub('-', name)
+        version = _FILESAFE.sub('-', version.replace(' ', '.'))
+    return '%s-%s' % (name, version)
+
+
+class LegacyMetadata(object):
+    """The legacy metadata of a release.
+
+    Supports versions 1.0, 1.1 and 1.2 (auto-detected). You can
+    instantiate the class with one of these arguments (or none):
+    - *path*, the path to a metadata file
+    - *fileobj* give a file-like object with metadata as content
+    - *mapping* is a dict-like object
+    - *scheme* is a version scheme name
+    """
+    # TODO document the mapping API and UNKNOWN default key
+
+    def __init__(self, path=None, fileobj=None, mapping=None,
+                 scheme='default'):
+        if [path, fileobj, mapping].count(None) < 2:
+            raise TypeError('path, fileobj and mapping are exclusive')
+        self._fields = {}
+        self.requires_files = []
+        self._dependencies = None
+        self.scheme = scheme
+        if path is not None:
+            self.read(path)
+        elif fileobj is not None:
+            self.read_file(fileobj)
+        elif mapping is not None:
+            self.update(mapping)
+            self.set_metadata_version()
+
+    def set_metadata_version(self):
+        self._fields['Metadata-Version'] = _best_version(self._fields)
+
+    def _write_field(self, fileobj, name, value):
+        fileobj.write('%s: %s\n' % (name, value))
+
+    def __getitem__(self, name):
+        return self.get(name)
+
+    def __setitem__(self, name, value):
+        return self.set(name, value)
+
+    def __delitem__(self, name):
+        field_name = self._convert_name(name)
+        try:
+            del self._fields[field_name]
+        except KeyError:
+            raise KeyError(name)
+
+    def __contains__(self, name):
+        return (name in self._fields or
+                self._convert_name(name) in self._fields)
+
+    def _convert_name(self, name):
+        if name in _ALL_FIELDS:
+            return name
+        name = name.replace('-', '_').lower()
+        return _ATTR2FIELD.get(name, name)
+
+    def _default_value(self, name):
+        if name in _LISTFIELDS or name in _ELEMENTSFIELD:
+            return []
+        return 'UNKNOWN'
+
+    def _remove_line_prefix(self, value):
+        if self.metadata_version in ('1.0', '1.1'):
+            return _LINE_PREFIX_PRE_1_2.sub('\n', value)
+        else:
+            return _LINE_PREFIX_1_2.sub('\n', value)
+
+    def __getattr__(self, name):
+        if name in _ATTR2FIELD:
+            return self[name]
+        raise AttributeError(name)
+
+    #
+    # Public API
+    #
+
+#    dependencies = property(_get_dependencies, _set_dependencies)
+
+    def get_fullname(self, filesafe=False):
+        """Return the distribution name with version.
+
+        If filesafe is true, return a filename-escaped form."""
+        return _get_name_and_version(self['Name'], self['Version'], filesafe)
+
+    def is_field(self, name):
+        """return True if name is a valid metadata key"""
+        name = self._convert_name(name)
+        return name in _ALL_FIELDS
+
+    def is_multi_field(self, name):
+        name = self._convert_name(name)
+        return name in _LISTFIELDS
+
+    def read(self, filepath):
+        """Read the metadata values from a file path."""
+        fp = codecs.open(filepath, 'r', encoding='utf-8')
+        try:
+            self.read_file(fp)
+        finally:
+            fp.close()
+
+    def read_file(self, fileob):
+        """Read the metadata values from a file object."""
+        msg = message_from_file(fileob)
+        self._fields['Metadata-Version'] = msg['metadata-version']
+
+        # When reading, get all the fields we can
+        for field in _ALL_FIELDS:
+            if field not in msg:
+                continue
+            if field in _LISTFIELDS:
+                # we can have multiple lines
+                values = msg.get_all(field)
+                if field in _LISTTUPLEFIELDS and values is not None:
+                    values = [tuple(value.split(',')) for value in values]
+                self.set(field, values)
+            else:
+                # single line
+                value = msg[field]
+                if value is not None and value != 'UNKNOWN':
+                    self.set(field, value)
+        self.set_metadata_version()
+
+    def write(self, filepath, skip_unknown=False):
+        """Write the metadata fields to filepath."""
+        fp = codecs.open(filepath, 'w', encoding='utf-8')
+        try:
+            self.write_file(fp, skip_unknown)
+        finally:
+            fp.close()
+
+    def write_file(self, fileobject, skip_unknown=False):
+        """Write the PKG-INFO format data to a file object."""
+        self.set_metadata_version()
+
+        for field in _version2fieldlist(self['Metadata-Version']):
+            values = self.get(field)
+            if skip_unknown and values in ('UNKNOWN', [], ['UNKNOWN']):
+                continue
+            if field in _ELEMENTSFIELD:
+                self._write_field(fileobject, field, ','.join(values))
+                continue
+            if field not in _LISTFIELDS:
+                if field == 'Description':
+                    if self.metadata_version in ('1.0', '1.1'):
+                        values = values.replace('\n', '\n        ')
+                    else:
+                        values = values.replace('\n', '\n       |')
+                values = [values]
+
+            if field in _LISTTUPLEFIELDS:
+                values = [','.join(value) for value in values]
+
+            for value in values:
+                self._write_field(fileobject, field, value)
+
+    def update(self, other=None, **kwargs):
+        """Set metadata values from the given iterable `other` and kwargs.
+
+        Behavior is like `dict.update`: If `other` has a ``keys`` method,
+        they are looped over and ``self[key]`` is assigned ``other[key]``.
+        Else, ``other`` is an iterable of ``(key, value)`` iterables.
+
+        Keys that don't match a metadata field or that have an empty value are
+        dropped.
+        """
+        def _set(key, value):
+            if key in _ATTR2FIELD and value:
+                self.set(self._convert_name(key), value)
+
+        if not other:
+            # other is None or empty container
+            pass
+        elif hasattr(other, 'keys'):
+            for k in other.keys():
+                _set(k, other[k])
+        else:
+            for k, v in other:
+                _set(k, v)
+
+        if kwargs:
+            for k, v in kwargs.items():
+                _set(k, v)
+
+    def set(self, name, value):
+        """Control then set a metadata field."""
+        name = self._convert_name(name)
+
+        if ((name in _ELEMENTSFIELD or name == 'Platform') and
+            not isinstance(value, (list, tuple))):
+            if isinstance(value, string_types):
+                value = [v.strip() for v in value.split(',')]
+            else:
+                value = []
+        elif (name in _LISTFIELDS and
+              not isinstance(value, (list, tuple))):
+            if isinstance(value, string_types):
+                value = [value]
+            else:
+                value = []
+
+        if logger.isEnabledFor(logging.WARNING):
+            project_name = self['Name']
+
+            scheme = get_scheme(self.scheme)
+            if name in _PREDICATE_FIELDS and value is not None:
+                for v in value:
+                    # check that the values are valid
+                    if not scheme.is_valid_matcher(v.split(';')[0]):
+                        logger.warning(
+                            "'%s': '%s' is not valid (field '%s')",
+                            project_name, v, name)
+            # FIXME this rejects UNKNOWN, is that right?
+            elif name in _VERSIONS_FIELDS and value is not None:
+                if not scheme.is_valid_constraint_list(value):
+                    logger.warning("'%s': '%s' is not a valid version (field '%s')",
+                                   project_name, value, name)
+            elif name in _VERSION_FIELDS and value is not None:
+                if not scheme.is_valid_version(value):
+                    logger.warning("'%s': '%s' is not a valid version (field '%s')",
+                                   project_name, value, name)
+
+        if name in _UNICODEFIELDS:
+            if name == 'Description':
+                value = self._remove_line_prefix(value)
+
+        self._fields[name] = value
+
+    def get(self, name, default=_MISSING):
+        """Get a metadata field."""
+        name = self._convert_name(name)
+        if name not in self._fields:
+            if default is _MISSING:
+                default = self._default_value(name)
+            return default
+        if name in _UNICODEFIELDS:
+            value = self._fields[name]
+            return value
+        elif name in _LISTFIELDS:
+            value = self._fields[name]
+            if value is None:
+                return []
+            res = []
+            for val in value:
+                if name not in _LISTTUPLEFIELDS:
+                    res.append(val)
+                else:
+                    # That's for Project-URL
+                    res.append((val[0], val[1]))
+            return res
+
+        elif name in _ELEMENTSFIELD:
+            value = self._fields[name]
+            if isinstance(value, string_types):
+                return value.split(',')
+        return self._fields[name]
+
+    def check(self, strict=False):
+        """Check if the metadata is compliant. If strict is True then raise if
+        no Name or Version are provided"""
+        self.set_metadata_version()
+
+        # XXX should check the versions (if the file was loaded)
+        missing, warnings = [], []
+
+        for attr in ('Name', 'Version'):  # required by PEP 345
+            if attr not in self:
+                missing.append(attr)
+
+        if strict and missing != []:
+            msg = 'missing required metadata: %s' % ', '.join(missing)
+            raise MetadataMissingError(msg)
+
+        for attr in ('Home-page', 'Author'):
+            if attr not in self:
+                missing.append(attr)
+
+        # checking metadata 1.2 (XXX needs to check 1.1, 1.0)
+        if self['Metadata-Version'] != '1.2':
+            return missing, warnings
+
+        scheme = get_scheme(self.scheme)
+
+        def are_valid_constraints(value):
+            for v in value:
+                if not scheme.is_valid_matcher(v.split(';')[0]):
+                    return False
+            return True
+
+        for fields, controller in ((_PREDICATE_FIELDS, are_valid_constraints),
+                                   (_VERSIONS_FIELDS,
+                                    scheme.is_valid_constraint_list),
+                                   (_VERSION_FIELDS,
+                                    scheme.is_valid_version)):
+            for field in fields:
+                value = self.get(field, None)
+                if value is not None and not controller(value):
+                    warnings.append("Wrong value for '%s': %s" % (field, value))
+
+        return missing, warnings
+
+    def todict(self, skip_missing=False):
+        """Return fields as a dict.
+
+        Field names will be converted to use the underscore-lowercase style
+        instead of hyphen-mixed case (i.e. home_page instead of Home-page).
+        """
+        self.set_metadata_version()
+
+        mapping_1_0 = (
+            ('metadata_version', 'Metadata-Version'),
+            ('name', 'Name'),
+            ('version', 'Version'),
+            ('summary', 'Summary'),
+            ('home_page', 'Home-page'),
+            ('author', 'Author'),
+            ('author_email', 'Author-email'),
+            ('license', 'License'),
+            ('description', 'Description'),
+            ('keywords', 'Keywords'),
+            ('platform', 'Platform'),
+            ('classifiers', 'Classifier'),
+            ('download_url', 'Download-URL'),
+        )
+
+        data = {}
+        for key, field_name in mapping_1_0:
+            if not skip_missing or field_name in self._fields:
+                data[key] = self[field_name]
+
+        if self['Metadata-Version'] == '1.2':
+            mapping_1_2 = (
+                ('requires_dist', 'Requires-Dist'),
+                ('requires_python', 'Requires-Python'),
+                ('requires_external', 'Requires-External'),
+                ('provides_dist', 'Provides-Dist'),
+                ('obsoletes_dist', 'Obsoletes-Dist'),
+                ('project_url', 'Project-URL'),
+                ('maintainer', 'Maintainer'),
+                ('maintainer_email', 'Maintainer-email'),
+            )
+            for key, field_name in mapping_1_2:
+                if not skip_missing or field_name in self._fields:
+                    if key != 'project_url':
+                        data[key] = self[field_name]
+                    else:
+                        data[key] = [','.join(u) for u in self[field_name]]
+
+        elif self['Metadata-Version'] == '1.1':
+            mapping_1_1 = (
+                ('provides', 'Provides'),
+                ('requires', 'Requires'),
+                ('obsoletes', 'Obsoletes'),
+            )
+            for key, field_name in mapping_1_1:
+                if not skip_missing or field_name in self._fields:
+                    data[key] = self[field_name]
+
+        return data
+
+    def add_requirements(self, requirements):
+        if self['Metadata-Version'] == '1.1':
+            # we can't have 1.1 metadata *and* Setuptools requires
+            for field in ('Obsoletes', 'Requires', 'Provides'):
+                if field in self:
+                    del self[field]
+        self['Requires-Dist'] += requirements
+
+    # Mapping API
+    # TODO could add iter* variants
+
+    def keys(self):
+        return list(_version2fieldlist(self['Metadata-Version']))
+
+    def __iter__(self):
+        for key in self.keys():
+            yield key
+
+    def values(self):
+        return [self[key] for key in self.keys()]
+
+    def items(self):
+        return [(key, self[key]) for key in self.keys()]
+
+    def __repr__(self):
+        return '<%s %s %s>' % (self.__class__.__name__, self.name,
+                               self.version)
+
+
+METADATA_FILENAME = 'pydist.json'
+WHEEL_METADATA_FILENAME = 'metadata.json'
+
+
+class Metadata(object):
+    """
+    The metadata of a release. This implementation uses 2.0 (JSON)
+    metadata where possible. If not possible, it wraps a LegacyMetadata
+    instance which handles the key-value metadata format.
+    """
+
+    METADATA_VERSION_MATCHER = re.compile('^\d+(\.\d+)*$')
+
+    NAME_MATCHER = re.compile('^[0-9A-Z]([0-9A-Z_.-]*[0-9A-Z])?$', re.I)
+
+    VERSION_MATCHER = PEP440_VERSION_RE
+
+    SUMMARY_MATCHER = re.compile('.{1,2047}')
+
+    METADATA_VERSION = '2.0'
+
+    GENERATOR = 'distlib (%s)' % __version__
+
+    MANDATORY_KEYS = {
+        'name': (),
+        'version': (),
+        'summary': ('legacy',),
+    }
+
+    INDEX_KEYS = ('name version license summary description author '
+                  'author_email keywords platform home_page classifiers '
+                  'download_url')
+
+    DEPENDENCY_KEYS = ('extras run_requires test_requires build_requires '
+                       'dev_requires provides meta_requires obsoleted_by '
+                       'supports_environments')
+
+    SYNTAX_VALIDATORS = {
+        'metadata_version': (METADATA_VERSION_MATCHER, ()),
+        'name': (NAME_MATCHER, ('legacy',)),
+        'version': (VERSION_MATCHER, ('legacy',)),
+        'summary': (SUMMARY_MATCHER, ('legacy',)),
+    }
+
+    __slots__ = ('_legacy', '_data', 'scheme')
+
+    def __init__(self, path=None, fileobj=None, mapping=None,
+                 scheme='default'):
+        if [path, fileobj, mapping].count(None) < 2:
+            raise TypeError('path, fileobj and mapping are exclusive')
+        self._legacy = None
+        self._data = None
+        self.scheme = scheme
+        #import pdb; pdb.set_trace()
+        if mapping is not None:
+            try:
+                self._validate_mapping(mapping, scheme)
+                self._data = mapping
+            except MetadataUnrecognizedVersionError:
+                self._legacy = LegacyMetadata(mapping=mapping, scheme=scheme)
+                self.validate()
+        else:
+            data = None
+            if path:
+                with open(path, 'rb') as f:
+                    data = f.read()
+            elif fileobj:
+                data = fileobj.read()
+            if data is None:
+                # Initialised with no args - to be added
+                self._data = {
+                    'metadata_version': self.METADATA_VERSION,
+                    'generator': self.GENERATOR,
+                }
+            else:
+                if not isinstance(data, text_type):
+                    data = data.decode('utf-8')
+                try:
+                    self._data = json.loads(data)
+                    self._validate_mapping(self._data, scheme)
+                except ValueError:
+                    # Note: MetadataUnrecognizedVersionError does not
+                    # inherit from ValueError (it's a DistlibException,
+                    # which should not inherit from ValueError).
+                    # The ValueError comes from the json.load - if that
+                    # succeeds and we get a validation error, we want
+                    # that to propagate
+                    self._legacy = LegacyMetadata(fileobj=StringIO(data),
+                                                  scheme=scheme)
+                    self.validate()
+
+    common_keys = set(('name', 'version', 'license', 'keywords', 'summary'))
+
+    none_list = (None, list)
+    none_dict = (None, dict)
+
+    mapped_keys = {
+        'run_requires': ('Requires-Dist', list),
+        'build_requires': ('Setup-Requires-Dist', list),
+        'dev_requires': none_list,
+        'test_requires': none_list,
+        'meta_requires': none_list,
+        'extras': ('Provides-Extra', list),
+        'modules': none_list,
+        'namespaces': none_list,
+        'exports': none_dict,
+        'commands': none_dict,
+        'classifiers': ('Classifier', list),
+        'source_url': ('Download-URL', None),
+        'metadata_version': ('Metadata-Version', None),
+    }
+
+    del none_list, none_dict
+
+    def __getattribute__(self, key):
+        common = object.__getattribute__(self, 'common_keys')
+        mapped = object.__getattribute__(self, 'mapped_keys')
+        if key in mapped:
+            lk, maker = mapped[key]
+            if self._legacy:
+                if lk is None:
+                    result = None if maker is None else maker()
+                else:
+                    result = self._legacy.get(lk)
+            else:
+                value = None if maker is None else maker()
+                if key not in ('commands', 'exports', 'modules', 'namespaces',
+                               'classifiers'):
+                    result = self._data.get(key, value)
+                else:
+                    # special cases for PEP 459
+                    sentinel = object()
+                    result = sentinel
+                    d = self._data.get('extensions')
+                    if d:
+                        if key == 'commands':
+                            result = d.get('python.commands', value)
+                        elif key == 'classifiers':
+                            d = d.get('python.details')
+                            if d:
+                                result = d.get(key, value)
+                        else:
+                            d = d.get('python.exports')
+                            if not d:
+                                d = self._data.get('python.exports')
+                            if d:
+                                result = d.get(key, value)
+                    if result is sentinel:
+                        result = value
+        elif key not in common:
+            result = object.__getattribute__(self, key)
+        elif self._legacy:
+            result = self._legacy.get(key)
+        else:
+            result = self._data.get(key)
+        return result
+
+    def _validate_value(self, key, value, scheme=None):
+        if key in self.SYNTAX_VALIDATORS:
+            pattern, exclusions = self.SYNTAX_VALIDATORS[key]
+            if (scheme or self.scheme) not in exclusions:
+                m = pattern.match(value)
+                if not m:
+                    raise MetadataInvalidError("'%s' is an invalid value for "
+                                               "the '%s' property" % (value,
+                                                                    key))
+
+    def __setattr__(self, key, value):
+        self._validate_value(key, value)
+        common = object.__getattribute__(self, 'common_keys')
+        mapped = object.__getattribute__(self, 'mapped_keys')
+        if key in mapped:
+            lk, _ = mapped[key]
+            if self._legacy:
+                if lk is None:
+                    raise NotImplementedError
+                self._legacy[lk] = value
+            elif key not in ('commands', 'exports', 'modules', 'namespaces',
+                             'classifiers'):
+                self._data[key] = value
+            else:
+                # special cases for PEP 459
+                d = self._data.setdefault('extensions', {})
+                if key == 'commands':
+                    d['python.commands'] = value
+                elif key == 'classifiers':
+                    d = d.setdefault('python.details', {})
+                    d[key] = value
+                else:
+                    d = d.setdefault('python.exports', {})
+                    d[key] = value
+        elif key not in common:
+            object.__setattr__(self, key, value)
+        else:
+            if key == 'keywords':
+                if isinstance(value, string_types):
+                    value = value.strip()
+                    if value:
+                        value = value.split()
+                    else:
+                        value = []
+            if self._legacy:
+                self._legacy[key] = value
+            else:
+                self._data[key] = value
+
+    @property
+    def name_and_version(self):
+        return _get_name_and_version(self.name, self.version, True)
+
+    @property
+    def provides(self):
+        if self._legacy:
+            result = self._legacy['Provides-Dist']
+        else:
+            result = self._data.setdefault('provides', [])
+        s = '%s (%s)' % (self.name, self.version)
+        if s not in result:
+            result.append(s)
+        return result
+
+    @provides.setter
+    def provides(self, value):
+        if self._legacy:
+            self._legacy['Provides-Dist'] = value
+        else:
+            self._data['provides'] = value
+
+    def get_requirements(self, reqts, extras=None, env=None):
+        """
+        Base method to get dependencies, given a set of extras
+        to satisfy and an optional environment context.
+        :param reqts: A list of sometimes-wanted dependencies,
+                      perhaps dependent on extras and environment.
+        :param extras: A list of optional components being requested.
+        :param env: An optional environment for marker evaluation.
+        """
+        if self._legacy:
+            result = reqts
+        else:
+            result = []
+            extras = get_extras(extras or [], self.extras)
+            for d in reqts:
+                if 'extra' not in d and 'environment' not in d:
+                    # unconditional
+                    include = True
+                else:
+                    if 'extra' not in d:
+                        # Not extra-dependent - only environment-dependent
+                        include = True
+                    else:
+                        include = d.get('extra') in extras
+                    if include:
+                        # Not excluded because of extras, check environment
+                        marker = d.get('environment')
+                        if marker:
+                            include = interpret(marker, env)
+                if include:
+                    result.extend(d['requires'])
+            for key in ('build', 'dev', 'test'):
+                e = ':%s:' % key
+                if e in extras:
+                    extras.remove(e)
+                    # A recursive call, but it should terminate since 'test'
+                    # has been removed from the extras
+                    reqts = self._data.get('%s_requires' % key, [])
+                    result.extend(self.get_requirements(reqts, extras=extras,
+                                                        env=env))
+        return result
+
+    @property
+    def dictionary(self):
+        if self._legacy:
+            return self._from_legacy()
+        return self._data
+
+    @property
+    def dependencies(self):
+        if self._legacy:
+            raise NotImplementedError
+        else:
+            return extract_by_key(self._data, self.DEPENDENCY_KEYS)
+
+    @dependencies.setter
+    def dependencies(self, value):
+        if self._legacy:
+            raise NotImplementedError
+        else:
+            self._data.update(value)
+
+    def _validate_mapping(self, mapping, scheme):
+        if mapping.get('metadata_version') != self.METADATA_VERSION:
+            raise MetadataUnrecognizedVersionError()
+        missing = []
+        for key, exclusions in self.MANDATORY_KEYS.items():
+            if key not in mapping:
+                if scheme not in exclusions:
+                    missing.append(key)
+        if missing:
+            msg = 'Missing metadata items: %s' % ', '.join(missing)
+            raise MetadataMissingError(msg)
+        for k, v in mapping.items():
+            self._validate_value(k, v, scheme)
+
+    def validate(self):
+        if self._legacy:
+            missing, warnings = self._legacy.check(True)
+            if missing or warnings:
+                logger.warning('Metadata: missing: %s, warnings: %s',
+                               missing, warnings)
+        else:
+            self._validate_mapping(self._data, self.scheme)
+
+    def todict(self):
+        if self._legacy:
+            return self._legacy.todict(True)
+        else:
+            result = extract_by_key(self._data, self.INDEX_KEYS)
+            return result
+
+    def _from_legacy(self):
+        assert self._legacy and not self._data
+        result = {
+            'metadata_version': self.METADATA_VERSION,
+            'generator': self.GENERATOR,
+        }
+        lmd = self._legacy.todict(True)     # skip missing ones
+        for k in ('name', 'version', 'license', 'summary', 'description',
+                  'classifier'):
+            if k in lmd:
+                if k == 'classifier':
+                    nk = 'classifiers'
+                else:
+                    nk = k
+                result[nk] = lmd[k]
+        kw = lmd.get('Keywords', [])
+        if kw == ['']:
+            kw = []
+        result['keywords'] = kw
+        keys = (('requires_dist', 'run_requires'),
+                ('setup_requires_dist', 'build_requires'))
+        for ok, nk in keys:
+            if ok in lmd and lmd[ok]:
+                result[nk] = [{'requires': lmd[ok]}]
+        result['provides'] = self.provides
+        author = {}
+        maintainer = {}
+        return result
+
+    LEGACY_MAPPING = {
+        'name': 'Name',
+        'version': 'Version',
+        'license': 'License',
+        'summary': 'Summary',
+        'description': 'Description',
+        'classifiers': 'Classifier',
+    }
+
+    def _to_legacy(self):
+        def process_entries(entries):
+            reqts = set()
+            for e in entries:
+                extra = e.get('extra')
+                env = e.get('environment')
+                rlist = e['requires']
+                for r in rlist:
+                    if not env and not extra:
+                        reqts.add(r)
+                    else:
+                        marker = ''
+                        if extra:
+                            marker = 'extra == "%s"' % extra
+                        if env:
+                            if marker:
+                                marker = '(%s) and %s' % (env, marker)
+                            else:
+                                marker = env
+                        reqts.add(';'.join((r, marker)))
+            return reqts
+
+        assert self._data and not self._legacy
+        result = LegacyMetadata()
+        nmd = self._data
+        for nk, ok in self.LEGACY_MAPPING.items():
+            if nk in nmd:
+                result[ok] = nmd[nk]
+        r1 = process_entries(self.run_requires + self.meta_requires)
+        r2 = process_entries(self.build_requires + self.dev_requires)
+        if self.extras:
+            result['Provides-Extra'] = sorted(self.extras)
+        result['Requires-Dist'] = sorted(r1)
+        result['Setup-Requires-Dist'] = sorted(r2)
+        # TODO: other fields such as contacts
+        return result
+
+    def write(self, path=None, fileobj=None, legacy=False, skip_unknown=True):
+        if [path, fileobj].count(None) != 1:
+            raise ValueError('Exactly one of path and fileobj is needed')
+        self.validate()
+        if legacy:
+            if self._legacy:
+                legacy_md = self._legacy
+            else:
+                legacy_md = self._to_legacy()
+            if path:
+                legacy_md.write(path, skip_unknown=skip_unknown)
+            else:
+                legacy_md.write_file(fileobj, skip_unknown=skip_unknown)
+        else:
+            if self._legacy:
+                d = self._from_legacy()
+            else:
+                d = self._data
+            if fileobj:
+                json.dump(d, fileobj, ensure_ascii=True, indent=2,
+                          sort_keys=True)
+            else:
+                with codecs.open(path, 'w', 'utf-8') as f:
+                    json.dump(d, f, ensure_ascii=True, indent=2,
+                              sort_keys=True)
+
+    def add_requirements(self, requirements):
+        if self._legacy:
+            self._legacy.add_requirements(requirements)
+        else:
+            run_requires = self._data.setdefault('run_requires', [])
+            always = None
+            for entry in run_requires:
+                if 'environment' not in entry and 'extra' not in entry:
+                    always = entry
+                    break
+            if always is None:
+                always = { 'requires': requirements }
+                run_requires.insert(0, always)
+            else:
+                rset = set(always['requires']) | set(requirements)
+                always['requires'] = sorted(rset)
+
+    def __repr__(self):
+        name = self.name or '(no name)'
+        version = self.version or 'no version'
+        return '<%s %s %s (%s)>' % (self.__class__.__name__,
+                                    self.metadata_version, name, version)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/resources.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/resources.py
new file mode 100644
index 0000000..f07cde2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/resources.py
@@ -0,0 +1,355 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2016 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from __future__ import unicode_literals
+
+import bisect
+import io
+import logging
+import os
+import pkgutil
+import shutil
+import sys
+import types
+import zipimport
+
+from . import DistlibException
+from .util import cached_property, get_cache_base, path_to_cache_dir, Cache
+
+logger = logging.getLogger(__name__)
+
+
+cache = None    # created when needed
+
+
+class ResourceCache(Cache):
+    def __init__(self, base=None):
+        if base is None:
+            # Use native string to avoid issues on 2.x: see Python #20140.
+            base = os.path.join(get_cache_base(), str('resource-cache'))
+        super(ResourceCache, self).__init__(base)
+
+    def is_stale(self, resource, path):
+        """
+        Is the cache stale for the given resource?
+
+        :param resource: The :class:`Resource` being cached.
+        :param path: The path of the resource in the cache.
+        :return: True if the cache is stale.
+        """
+        # Cache invalidation is a hard problem :-)
+        return True
+
+    def get(self, resource):
+        """
+        Get a resource into the cache,
+
+        :param resource: A :class:`Resource` instance.
+        :return: The pathname of the resource in the cache.
+        """
+        prefix, path = resource.finder.get_cache_info(resource)
+        if prefix is None:
+            result = path
+        else:
+            result = os.path.join(self.base, self.prefix_to_dir(prefix), path)
+            dirname = os.path.dirname(result)
+            if not os.path.isdir(dirname):
+                os.makedirs(dirname)
+            if not os.path.exists(result):
+                stale = True
+            else:
+                stale = self.is_stale(resource, path)
+            if stale:
+                # write the bytes of the resource to the cache location
+                with open(result, 'wb') as f:
+                    f.write(resource.bytes)
+        return result
+
+
+class ResourceBase(object):
+    def __init__(self, finder, name):
+        self.finder = finder
+        self.name = name
+
+
+class Resource(ResourceBase):
+    """
+    A class representing an in-package resource, such as a data file. This is
+    not normally instantiated by user code, but rather by a
+    :class:`ResourceFinder` which manages the resource.
+    """
+    is_container = False        # Backwards compatibility
+
+    def as_stream(self):
+        """
+        Get the resource as a stream.
+
+        This is not a property to make it obvious that it returns a new stream
+        each time.
+        """
+        return self.finder.get_stream(self)
+
+    @cached_property
+    def file_path(self):
+        global cache
+        if cache is None:
+            cache = ResourceCache()
+        return cache.get(self)
+
+    @cached_property
+    def bytes(self):
+        return self.finder.get_bytes(self)
+
+    @cached_property
+    def size(self):
+        return self.finder.get_size(self)
+
+
+class ResourceContainer(ResourceBase):
+    is_container = True     # Backwards compatibility
+
+    @cached_property
+    def resources(self):
+        return self.finder.get_resources(self)
+
+
+class ResourceFinder(object):
+    """
+    Resource finder for file system resources.
+    """
+
+    if sys.platform.startswith('java'):
+        skipped_extensions = ('.pyc', '.pyo', '.class')
+    else:
+        skipped_extensions = ('.pyc', '.pyo')
+
+    def __init__(self, module):
+        self.module = module
+        self.loader = getattr(module, '__loader__', None)
+        self.base = os.path.dirname(getattr(module, '__file__', ''))
+
+    def _adjust_path(self, path):
+        return os.path.realpath(path)
+
+    def _make_path(self, resource_name):
+        # Issue #50: need to preserve type of path on Python 2.x
+        # like os.path._get_sep
+        if isinstance(resource_name, bytes):    # should only happen on 2.x
+            sep = b'/'
+        else:
+            sep = '/'
+        parts = resource_name.split(sep)
+        parts.insert(0, self.base)
+        result = os.path.join(*parts)
+        return self._adjust_path(result)
+
+    def _find(self, path):
+        return os.path.exists(path)
+
+    def get_cache_info(self, resource):
+        return None, resource.path
+
+    def find(self, resource_name):
+        path = self._make_path(resource_name)
+        if not self._find(path):
+            result = None
+        else:
+            if self._is_directory(path):
+                result = ResourceContainer(self, resource_name)
+            else:
+                result = Resource(self, resource_name)
+            result.path = path
+        return result
+
+    def get_stream(self, resource):
+        return open(resource.path, 'rb')
+
+    def get_bytes(self, resource):
+        with open(resource.path, 'rb') as f:
+            return f.read()
+
+    def get_size(self, resource):
+        return os.path.getsize(resource.path)
+
+    def get_resources(self, resource):
+        def allowed(f):
+            return (f != '__pycache__' and not
+                    f.endswith(self.skipped_extensions))
+        return set([f for f in os.listdir(resource.path) if allowed(f)])
+
+    def is_container(self, resource):
+        return self._is_directory(resource.path)
+
+    _is_directory = staticmethod(os.path.isdir)
+
+    def iterator(self, resource_name):
+        resource = self.find(resource_name)
+        if resource is not None:
+            todo = [resource]
+            while todo:
+                resource = todo.pop(0)
+                yield resource
+                if resource.is_container:
+                    rname = resource.name
+                    for name in resource.resources:
+                        if not rname:
+                            new_name = name
+                        else:
+                            new_name = '/'.join([rname, name])
+                        child = self.find(new_name)
+                        if child.is_container:
+                            todo.append(child)
+                        else:
+                            yield child
+
+
+class ZipResourceFinder(ResourceFinder):
+    """
+    Resource finder for resources in .zip files.
+    """
+    def __init__(self, module):
+        super(ZipResourceFinder, self).__init__(module)
+        archive = self.loader.archive
+        self.prefix_len = 1 + len(archive)
+        # PyPy doesn't have a _files attr on zipimporter, and you can't set one
+        if hasattr(self.loader, '_files'):
+            self._files = self.loader._files
+        else:
+            self._files = zipimport._zip_directory_cache[archive]
+        self.index = sorted(self._files)
+
+    def _adjust_path(self, path):
+        return path
+
+    def _find(self, path):
+        path = path[self.prefix_len:]
+        if path in self._files:
+            result = True
+        else:
+            if path and path[-1] != os.sep:
+                path = path + os.sep
+            i = bisect.bisect(self.index, path)
+            try:
+                result = self.index[i].startswith(path)
+            except IndexError:
+                result = False
+        if not result:
+            logger.debug('_find failed: %r %r', path, self.loader.prefix)
+        else:
+            logger.debug('_find worked: %r %r', path, self.loader.prefix)
+        return result
+
+    def get_cache_info(self, resource):
+        prefix = self.loader.archive
+        path = resource.path[1 + len(prefix):]
+        return prefix, path
+
+    def get_bytes(self, resource):
+        return self.loader.get_data(resource.path)
+
+    def get_stream(self, resource):
+        return io.BytesIO(self.get_bytes(resource))
+
+    def get_size(self, resource):
+        path = resource.path[self.prefix_len:]
+        return self._files[path][3]
+
+    def get_resources(self, resource):
+        path = resource.path[self.prefix_len:]
+        if path and path[-1] != os.sep:
+            path += os.sep
+        plen = len(path)
+        result = set()
+        i = bisect.bisect(self.index, path)
+        while i < len(self.index):
+            if not self.index[i].startswith(path):
+                break
+            s = self.index[i][plen:]
+            result.add(s.split(os.sep, 1)[0])   # only immediate children
+            i += 1
+        return result
+
+    def _is_directory(self, path):
+        path = path[self.prefix_len:]
+        if path and path[-1] != os.sep:
+            path += os.sep
+        i = bisect.bisect(self.index, path)
+        try:
+            result = self.index[i].startswith(path)
+        except IndexError:
+            result = False
+        return result
+
+_finder_registry = {
+    type(None): ResourceFinder,
+    zipimport.zipimporter: ZipResourceFinder
+}
+
+try:
+    # In Python 3.6, _frozen_importlib -> _frozen_importlib_external
+    try:
+        import _frozen_importlib_external as _fi
+    except ImportError:
+        import _frozen_importlib as _fi
+    _finder_registry[_fi.SourceFileLoader] = ResourceFinder
+    _finder_registry[_fi.FileFinder] = ResourceFinder
+    del _fi
+except (ImportError, AttributeError):
+    pass
+
+
+def register_finder(loader, finder_maker):
+    _finder_registry[type(loader)] = finder_maker
+
+_finder_cache = {}
+
+
+def finder(package):
+    """
+    Return a resource finder for a package.
+    :param package: The name of the package.
+    :return: A :class:`ResourceFinder` instance for the package.
+    """
+    if package in _finder_cache:
+        result = _finder_cache[package]
+    else:
+        if package not in sys.modules:
+            __import__(package)
+        module = sys.modules[package]
+        path = getattr(module, '__path__', None)
+        if path is None:
+            raise DistlibException('You cannot get a finder for a module, '
+                                   'only for a package')
+        loader = getattr(module, '__loader__', None)
+        finder_maker = _finder_registry.get(type(loader))
+        if finder_maker is None:
+            raise DistlibException('Unable to locate finder for %r' % package)
+        result = finder_maker(module)
+        _finder_cache[package] = result
+    return result
+
+
+_dummy_module = types.ModuleType(str('__dummy__'))
+
+
+def finder_for_path(path):
+    """
+    Return a resource finder for a path, which should represent a container.
+
+    :param path: The path.
+    :return: A :class:`ResourceFinder` instance for the path.
+    """
+    result = None
+    # calls any path hooks, gets importer into cache
+    pkgutil.get_importer(path)
+    loader = sys.path_importer_cache.get(path)
+    finder = _finder_registry.get(type(loader))
+    if finder:
+        module = _dummy_module
+        module.__file__ = os.path.join(path, '')
+        module.__loader__ = loader
+        result = finder(module)
+    return result
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/scripts.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/scripts.py
new file mode 100644
index 0000000..792fc2e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/scripts.py
@@ -0,0 +1,384 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2015 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from io import BytesIO
+import logging
+import os
+import re
+import struct
+import sys
+
+from .compat import sysconfig, detect_encoding, ZipFile
+from .resources import finder
+from .util import (FileOperator, get_export_entry, convert_path,
+                   get_executable, in_venv)
+
+logger = logging.getLogger(__name__)
+
+_DEFAULT_MANIFEST = '''
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+ <assemblyIdentity version="1.0.0.0"
+ processorArchitecture="X86"
+ name="%s"
+ type="win32"/>
+
+ 
+ <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+ <security>
+ <requestedPrivileges>
+ <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+ </requestedPrivileges>
+ </security>
+ </trustInfo>
+</assembly>'''.strip()
+
+# check if Python is called on the first line with this expression
+FIRST_LINE_RE = re.compile(b'^#!.*pythonw?[0-9.]*([ \t].*)?$')
+SCRIPT_TEMPLATE = '''# -*- coding: utf-8 -*-
+if __name__ == '__main__':
+    import sys, re
+
+    def _resolve(module, func):
+        __import__(module)
+        mod = sys.modules[module]
+        parts = func.split('.')
+        result = getattr(mod, parts.pop(0))
+        for p in parts:
+            result = getattr(result, p)
+        return result
+
+    try:
+        sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+
+        func = _resolve('%(module)s', '%(func)s')
+        rc = func() # None interpreted as 0
+    except Exception as e:  # only supporting Python >= 2.6
+        sys.stderr.write('%%s\\n' %% e)
+        rc = 1
+    sys.exit(rc)
+'''
+
+
+def _enquote_executable(executable):
+    if ' ' in executable:
+        # make sure we quote only the executable in case of env
+        # for example /usr/bin/env "/dir with spaces/bin/jython"
+        # instead of "/usr/bin/env /dir with spaces/bin/jython"
+        # otherwise whole
+        if executable.startswith('/usr/bin/env '):
+            env, _executable = executable.split(' ', 1)
+            if ' ' in _executable and not _executable.startswith('"'):
+                executable = '%s "%s"' % (env, _executable)
+        else:
+            if not executable.startswith('"'):
+                executable = '"%s"' % executable
+    return executable
+
+
+class ScriptMaker(object):
+    """
+    A class to copy or create scripts from source scripts or callable
+    specifications.
+    """
+    script_template = SCRIPT_TEMPLATE
+
+    executable = None  # for shebangs
+
+    def __init__(self, source_dir, target_dir, add_launchers=True,
+                 dry_run=False, fileop=None):
+        self.source_dir = source_dir
+        self.target_dir = target_dir
+        self.add_launchers = add_launchers
+        self.force = False
+        self.clobber = False
+        # It only makes sense to set mode bits on POSIX.
+        self.set_mode = (os.name == 'posix') or (os.name == 'java' and
+                                                 os._name == 'posix')
+        self.variants = set(('', 'X.Y'))
+        self._fileop = fileop or FileOperator(dry_run)
+
+        self._is_nt = os.name == 'nt' or (
+            os.name == 'java' and os._name == 'nt')
+
+    def _get_alternate_executable(self, executable, options):
+        if options.get('gui', False) and self._is_nt:  # pragma: no cover
+            dn, fn = os.path.split(executable)
+            fn = fn.replace('python', 'pythonw')
+            executable = os.path.join(dn, fn)
+        return executable
+
+    if sys.platform.startswith('java'):  # pragma: no cover
+        def _is_shell(self, executable):
+            """
+            Determine if the specified executable is a script
+            (contains a #! line)
+            """
+            try:
+                with open(executable) as fp:
+                    return fp.read(2) == '#!'
+            except (OSError, IOError):
+                logger.warning('Failed to open %s', executable)
+                return False
+
+        def _fix_jython_executable(self, executable):
+            if self._is_shell(executable):
+                # Workaround for Jython is not needed on Linux systems.
+                import java
+
+                if java.lang.System.getProperty('os.name') == 'Linux':
+                    return executable
+            elif executable.lower().endswith('jython.exe'):
+                # Use wrapper exe for Jython on Windows
+                return executable
+            return '/usr/bin/env %s' % executable
+
+    def _get_shebang(self, encoding, post_interp=b'', options=None):
+        enquote = True
+        if self.executable:
+            executable = self.executable
+            enquote = False     # assume this will be taken care of
+        elif not sysconfig.is_python_build():
+            executable = get_executable()
+        elif in_venv():  # pragma: no cover
+            executable = os.path.join(sysconfig.get_path('scripts'),
+                            'python%s' % sysconfig.get_config_var('EXE'))
+        else:  # pragma: no cover
+            executable = os.path.join(
+                sysconfig.get_config_var('BINDIR'),
+               'python%s%s' % (sysconfig.get_config_var('VERSION'),
+                               sysconfig.get_config_var('EXE')))
+        if options:
+            executable = self._get_alternate_executable(executable, options)
+
+        if sys.platform.startswith('java'):  # pragma: no cover
+            executable = self._fix_jython_executable(executable)
+        # Normalise case for Windows
+        executable = os.path.normcase(executable)
+        # If the user didn't specify an executable, it may be necessary to
+        # cater for executable paths with spaces (not uncommon on Windows)
+        if enquote:
+            executable = _enquote_executable(executable)
+        # Issue #51: don't use fsencode, since we later try to
+        # check that the shebang is decodable using utf-8.
+        executable = executable.encode('utf-8')
+        # in case of IronPython, play safe and enable frames support
+        if (sys.platform == 'cli' and '-X:Frames' not in post_interp
+            and '-X:FullFrames' not in post_interp):  # pragma: no cover
+            post_interp += b' -X:Frames'
+        shebang = b'#!' + executable + post_interp + b'\n'
+        # Python parser starts to read a script using UTF-8 until
+        # it gets a #coding:xxx cookie. The shebang has to be the
+        # first line of a file, the #coding:xxx cookie cannot be
+        # written before. So the shebang has to be decodable from
+        # UTF-8.
+        try:
+            shebang.decode('utf-8')
+        except UnicodeDecodeError:  # pragma: no cover
+            raise ValueError(
+                'The shebang (%r) is not decodable from utf-8' % shebang)
+        # If the script is encoded to a custom encoding (use a
+        # #coding:xxx cookie), the shebang has to be decodable from
+        # the script encoding too.
+        if encoding != 'utf-8':
+            try:
+                shebang.decode(encoding)
+            except UnicodeDecodeError:  # pragma: no cover
+                raise ValueError(
+                    'The shebang (%r) is not decodable '
+                    'from the script encoding (%r)' % (shebang, encoding))
+        return shebang
+
+    def _get_script_text(self, entry):
+        return self.script_template % dict(module=entry.prefix,
+                                           func=entry.suffix)
+
+    manifest = _DEFAULT_MANIFEST
+
+    def get_manifest(self, exename):
+        base = os.path.basename(exename)
+        return self.manifest % base
+
+    def _write_script(self, names, shebang, script_bytes, filenames, ext):
+        use_launcher = self.add_launchers and self._is_nt
+        linesep = os.linesep.encode('utf-8')
+        if not use_launcher:
+            script_bytes = shebang + linesep + script_bytes
+        else:  # pragma: no cover
+            if ext == 'py':
+                launcher = self._get_launcher('t')
+            else:
+                launcher = self._get_launcher('w')
+            stream = BytesIO()
+            with ZipFile(stream, 'w') as zf:
+                zf.writestr('__main__.py', script_bytes)
+            zip_data = stream.getvalue()
+            script_bytes = launcher + shebang + linesep + zip_data
+        for name in names:
+            outname = os.path.join(self.target_dir, name)
+            if use_launcher:  # pragma: no cover
+                n, e = os.path.splitext(outname)
+                if e.startswith('.py'):
+                    outname = n
+                outname = '%s.exe' % outname
+                try:
+                    self._fileop.write_binary_file(outname, script_bytes)
+                except Exception:
+                    # Failed writing an executable - it might be in use.
+                    logger.warning('Failed to write executable - trying to '
+                                   'use .deleteme logic')
+                    dfname = '%s.deleteme' % outname
+                    if os.path.exists(dfname):
+                        os.remove(dfname)       # Not allowed to fail here
+                    os.rename(outname, dfname)  # nor here
+                    self._fileop.write_binary_file(outname, script_bytes)
+                    logger.debug('Able to replace executable using '
+                                 '.deleteme logic')
+                    try:
+                        os.remove(dfname)
+                    except Exception:
+                        pass    # still in use - ignore error
+            else:
+                if self._is_nt and not outname.endswith('.' + ext):  # pragma: no cover
+                    outname = '%s.%s' % (outname, ext)
+                if os.path.exists(outname) and not self.clobber:
+                    logger.warning('Skipping existing file %s', outname)
+                    continue
+                self._fileop.write_binary_file(outname, script_bytes)
+                if self.set_mode:
+                    self._fileop.set_executable_mode([outname])
+            filenames.append(outname)
+
+    def _make_script(self, entry, filenames, options=None):
+        post_interp = b''
+        if options:
+            args = options.get('interpreter_args', [])
+            if args:
+                args = ' %s' % ' '.join(args)
+                post_interp = args.encode('utf-8')
+        shebang = self._get_shebang('utf-8', post_interp, options=options)
+        script = self._get_script_text(entry).encode('utf-8')
+        name = entry.name
+        scriptnames = set()
+        if '' in self.variants:
+            scriptnames.add(name)
+        if 'X' in self.variants:
+            scriptnames.add('%s%s' % (name, sys.version[0]))
+        if 'X.Y' in self.variants:
+            scriptnames.add('%s-%s' % (name, sys.version[:3]))
+        if options and options.get('gui', False):
+            ext = 'pyw'
+        else:
+            ext = 'py'
+        self._write_script(scriptnames, shebang, script, filenames, ext)
+
+    def _copy_script(self, script, filenames):
+        adjust = False
+        script = os.path.join(self.source_dir, convert_path(script))
+        outname = os.path.join(self.target_dir, os.path.basename(script))
+        if not self.force and not self._fileop.newer(script, outname):
+            logger.debug('not copying %s (up-to-date)', script)
+            return
+
+        # Always open the file, but ignore failures in dry-run mode --
+        # that way, we'll get accurate feedback if we can read the
+        # script.
+        try:
+            f = open(script, 'rb')
+        except IOError:  # pragma: no cover
+            if not self.dry_run:
+                raise
+            f = None
+        else:
+            first_line = f.readline()
+            if not first_line:  # pragma: no cover
+                logger.warning('%s: %s is an empty file (skipping)',
+                               self.get_command_name(),  script)
+                return
+
+            match = FIRST_LINE_RE.match(first_line.replace(b'\r\n', b'\n'))
+            if match:
+                adjust = True
+                post_interp = match.group(1) or b''
+
+        if not adjust:
+            if f:
+                f.close()
+            self._fileop.copy_file(script, outname)
+            if self.set_mode:
+                self._fileop.set_executable_mode([outname])
+            filenames.append(outname)
+        else:
+            logger.info('copying and adjusting %s -> %s', script,
+                        self.target_dir)
+            if not self._fileop.dry_run:
+                encoding, lines = detect_encoding(f.readline)
+                f.seek(0)
+                shebang = self._get_shebang(encoding, post_interp)
+                if b'pythonw' in first_line:  # pragma: no cover
+                    ext = 'pyw'
+                else:
+                    ext = 'py'
+                n = os.path.basename(outname)
+                self._write_script([n], shebang, f.read(), filenames, ext)
+            if f:
+                f.close()
+
+    @property
+    def dry_run(self):
+        return self._fileop.dry_run
+
+    @dry_run.setter
+    def dry_run(self, value):
+        self._fileop.dry_run = value
+
+    if os.name == 'nt' or (os.name == 'java' and os._name == 'nt'):  # pragma: no cover
+        # Executable launcher support.
+        # Launchers are from https://bitbucket.org/vinay.sajip/simple_launcher/
+
+        def _get_launcher(self, kind):
+            if struct.calcsize('P') == 8:   # 64-bit
+                bits = '64'
+            else:
+                bits = '32'
+            name = '%s%s.exe' % (kind, bits)
+            # Issue 31: don't hardcode an absolute package name, but
+            # determine it relative to the current package
+            distlib_package = __name__.rsplit('.', 1)[0]
+            result = finder(distlib_package).find(name).bytes
+            return result
+
+    # Public API follows
+
+    def make(self, specification, options=None):
+        """
+        Make a script.
+
+        :param specification: The specification, which is either a valid export
+                              entry specification (to make a script from a
+                              callable) or a filename (to make a script by
+                              copying from a source location).
+        :param options: A dictionary of options controlling script generation.
+        :return: A list of all absolute pathnames written to.
+        """
+        filenames = []
+        entry = get_export_entry(specification)
+        if entry is None:
+            self._copy_script(specification, filenames)
+        else:
+            self._make_script(entry, filenames, options=options)
+        return filenames
+
+    def make_multiple(self, specifications, options=None):
+        """
+        Take a list of specifications and make scripts from them,
+        :param specifications: A list of specifications.
+        :return: A list of all absolute pathnames written to,
+        """
+        filenames = []
+        for specification in specifications:
+            filenames.extend(self.make(specification, options))
+        return filenames
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/t32.exe b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/t32.exe
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/t64.exe b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/t64.exe
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/util.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/util.py
new file mode 100644
index 0000000..aadc874
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/util.py
@@ -0,0 +1,1611 @@
+#
+# Copyright (C) 2012-2016 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+import codecs
+from collections import deque
+import contextlib
+import csv
+from glob import iglob as std_iglob
+import io
+import json
+import logging
+import os
+import py_compile
+import re
+import shutil
+import socket
+try:
+    import ssl
+except ImportError:  # pragma: no cover
+    ssl = None
+import subprocess
+import sys
+import tarfile
+import tempfile
+import textwrap
+
+try:
+    import threading
+except ImportError:  # pragma: no cover
+    import dummy_threading as threading
+import time
+
+from . import DistlibException
+from .compat import (string_types, text_type, shutil, raw_input, StringIO,
+                     cache_from_source, urlopen, urljoin, httplib, xmlrpclib,
+                     splittype, HTTPHandler, BaseConfigurator, valid_ident,
+                     Container, configparser, URLError, ZipFile, fsdecode,
+                     unquote)
+
+logger = logging.getLogger(__name__)
+
+#
+# Requirement parsing code for name + optional constraints + optional extras
+#
+# e.g. 'foo >= 1.2, < 2.0 [bar, baz]'
+#
+# The regex can seem a bit hairy, so we build it up out of smaller pieces
+# which are manageable.
+#
+
+COMMA = r'\s*,\s*'
+COMMA_RE = re.compile(COMMA)
+
+IDENT = r'(\w|[.-])+'
+EXTRA_IDENT = r'(\*|:(\*|\w+):|' + IDENT + ')'
+VERSPEC = IDENT + r'\*?'
+
+RELOP = '([<>=!~]=)|[<>]'
+
+#
+# The first relop is optional - if absent, will be taken as '~='
+#
+BARE_CONSTRAINTS = ('(' + RELOP + r')?\s*(' + VERSPEC + ')(' + COMMA + '(' +
+                    RELOP + r')\s*(' + VERSPEC + '))*')
+
+DIRECT_REF = '(from\s+(?P<diref>.*))'
+
+#
+# Either the bare constraints or the bare constraints in parentheses
+#
+CONSTRAINTS = (r'\(\s*(?P<c1>' + BARE_CONSTRAINTS + '|' + DIRECT_REF +
+               r')\s*\)|(?P<c2>' + BARE_CONSTRAINTS + '\s*)')
+
+EXTRA_LIST = EXTRA_IDENT + '(' + COMMA + EXTRA_IDENT + ')*'
+EXTRAS = r'\[\s*(?P<ex>' + EXTRA_LIST + r')?\s*\]'
+REQUIREMENT = ('(?P<dn>'  + IDENT + r')\s*(' + EXTRAS + r'\s*)?(\s*' +
+               CONSTRAINTS + ')?$')
+REQUIREMENT_RE = re.compile(REQUIREMENT)
+
+#
+# Used to scan through the constraints
+#
+RELOP_IDENT = '(?P<op>' + RELOP + r')\s*(?P<vn>' + VERSPEC + ')'
+RELOP_IDENT_RE = re.compile(RELOP_IDENT)
+
+def parse_requirement(s):
+
+    def get_constraint(m):
+        d = m.groupdict()
+        return d['op'], d['vn']
+
+    result = None
+    m = REQUIREMENT_RE.match(s)
+    if m:
+        d = m.groupdict()
+        name = d['dn']
+        cons = d['c1'] or d['c2']
+        if not d['diref']:
+            url = None
+        else:
+            # direct reference
+            cons = None
+            url = d['diref'].strip()
+        if not cons:
+            cons = None
+            constr = ''
+            rs = d['dn']
+        else:
+            if cons[0] not in '<>!=':
+                cons = '~=' + cons
+            iterator = RELOP_IDENT_RE.finditer(cons)
+            cons = [get_constraint(m) for m in iterator]
+            rs = '%s (%s)' % (name, ', '.join(['%s %s' % con for con in cons]))
+        if not d['ex']:
+            extras = None
+        else:
+            extras = COMMA_RE.split(d['ex'])
+        result = Container(name=name, constraints=cons, extras=extras,
+                           requirement=rs, source=s, url=url)
+    return result
+
+
+def get_resources_dests(resources_root, rules):
+    """Find destinations for resources files"""
+
+    def get_rel_path(base, path):
+        # normalizes and returns a lstripped-/-separated path
+        base = base.replace(os.path.sep, '/')
+        path = path.replace(os.path.sep, '/')
+        assert path.startswith(base)
+        return path[len(base):].lstrip('/')
+
+
+    destinations = {}
+    for base, suffix, dest in rules:
+        prefix = os.path.join(resources_root, base)
+        for abs_base in iglob(prefix):
+            abs_glob = os.path.join(abs_base, suffix)
+            for abs_path in iglob(abs_glob):
+                resource_file = get_rel_path(resources_root, abs_path)
+                if dest is None:  # remove the entry if it was here
+                    destinations.pop(resource_file, None)
+                else:
+                    rel_path = get_rel_path(abs_base, abs_path)
+                    rel_dest = dest.replace(os.path.sep, '/').rstrip('/')
+                    destinations[resource_file] = rel_dest + '/' + rel_path
+    return destinations
+
+
+def in_venv():
+    if hasattr(sys, 'real_prefix'):
+        # virtualenv venvs
+        result = True
+    else:
+        # PEP 405 venvs
+        result = sys.prefix != getattr(sys, 'base_prefix', sys.prefix)
+    return result
+
+
+def get_executable():
+# The __PYVENV_LAUNCHER__ dance is apparently no longer needed, as
+# changes to the stub launcher mean that sys.executable always points
+# to the stub on macOS
+#    if sys.platform == 'darwin' and ('__PYVENV_LAUNCHER__'
+#                                     in os.environ):
+#        result =  os.environ['__PYVENV_LAUNCHER__']
+#    else:
+#        result = sys.executable
+#    return result
+    result = os.path.normcase(sys.executable)
+    if not isinstance(result, text_type):
+        result = fsdecode(result)
+    return result
+
+
+def proceed(prompt, allowed_chars, error_prompt=None, default=None):
+    p = prompt
+    while True:
+        s = raw_input(p)
+        p = prompt
+        if not s and default:
+            s = default
+        if s:
+            c = s[0].lower()
+            if c in allowed_chars:
+                break
+            if error_prompt:
+                p = '%c: %s\n%s' % (c, error_prompt, prompt)
+    return c
+
+
+def extract_by_key(d, keys):
+    if isinstance(keys, string_types):
+        keys = keys.split()
+    result = {}
+    for key in keys:
+        if key in d:
+            result[key] = d[key]
+    return result
+
+def read_exports(stream):
+    if sys.version_info[0] >= 3:
+        # needs to be a text stream
+        stream = codecs.getreader('utf-8')(stream)
+    # Try to load as JSON, falling back on legacy format
+    data = stream.read()
+    stream = StringIO(data)
+    try:
+        jdata = json.load(stream)
+        result = jdata['extensions']['python.exports']['exports']
+        for group, entries in result.items():
+            for k, v in entries.items():
+                s = '%s = %s' % (k, v)
+                entry = get_export_entry(s)
+                assert entry is not None
+                entries[k] = entry
+        return result
+    except Exception:
+        stream.seek(0, 0)
+
+    def read_stream(cp, stream):
+        if hasattr(cp, 'read_file'):
+            cp.read_file(stream)
+        else:
+            cp.readfp(stream)
+
+    cp = configparser.ConfigParser()
+    try:
+        read_stream(cp, stream)
+    except configparser.MissingSectionHeaderError:
+        stream.close()
+        data = textwrap.dedent(data)
+        stream = StringIO(data)
+        read_stream(cp, stream)
+
+    result = {}
+    for key in cp.sections():
+        result[key] = entries = {}
+        for name, value in cp.items(key):
+            s = '%s = %s' % (name, value)
+            entry = get_export_entry(s)
+            assert entry is not None
+            #entry.dist = self
+            entries[name] = entry
+    return result
+
+
+def write_exports(exports, stream):
+    if sys.version_info[0] >= 3:
+        # needs to be a text stream
+        stream = codecs.getwriter('utf-8')(stream)
+    cp = configparser.ConfigParser()
+    for k, v in exports.items():
+        # TODO check k, v for valid values
+        cp.add_section(k)
+        for entry in v.values():
+            if entry.suffix is None:
+                s = entry.prefix
+            else:
+                s = '%s:%s' % (entry.prefix, entry.suffix)
+            if entry.flags:
+                s = '%s [%s]' % (s, ', '.join(entry.flags))
+            cp.set(k, entry.name, s)
+    cp.write(stream)
+
+
+@contextlib.contextmanager
+def tempdir():
+    td = tempfile.mkdtemp()
+    try:
+        yield td
+    finally:
+        shutil.rmtree(td)
+
+@contextlib.contextmanager
+def chdir(d):
+    cwd = os.getcwd()
+    try:
+        os.chdir(d)
+        yield
+    finally:
+        os.chdir(cwd)
+
+
+@contextlib.contextmanager
+def socket_timeout(seconds=15):
+    cto = socket.getdefaulttimeout()
+    try:
+        socket.setdefaulttimeout(seconds)
+        yield
+    finally:
+        socket.setdefaulttimeout(cto)
+
+
+class cached_property(object):
+    def __init__(self, func):
+        self.func = func
+        #for attr in ('__name__', '__module__', '__doc__'):
+        #    setattr(self, attr, getattr(func, attr, None))
+
+    def __get__(self, obj, cls=None):
+        if obj is None:
+            return self
+        value = self.func(obj)
+        object.__setattr__(obj, self.func.__name__, value)
+        #obj.__dict__[self.func.__name__] = value = self.func(obj)
+        return value
+
+def convert_path(pathname):
+    """Return 'pathname' as a name that will work on the native filesystem.
+
+    The path is split on '/' and put back together again using the current
+    directory separator.  Needed because filenames in the setup script are
+    always supplied in Unix style, and have to be converted to the local
+    convention before we can actually use them in the filesystem.  Raises
+    ValueError on non-Unix-ish systems if 'pathname' either starts or
+    ends with a slash.
+    """
+    if os.sep == '/':
+        return pathname
+    if not pathname:
+        return pathname
+    if pathname[0] == '/':
+        raise ValueError("path '%s' cannot be absolute" % pathname)
+    if pathname[-1] == '/':
+        raise ValueError("path '%s' cannot end with '/'" % pathname)
+
+    paths = pathname.split('/')
+    while os.curdir in paths:
+        paths.remove(os.curdir)
+    if not paths:
+        return os.curdir
+    return os.path.join(*paths)
+
+
+class FileOperator(object):
+    def __init__(self, dry_run=False):
+        self.dry_run = dry_run
+        self.ensured = set()
+        self._init_record()
+
+    def _init_record(self):
+        self.record = False
+        self.files_written = set()
+        self.dirs_created = set()
+
+    def record_as_written(self, path):
+        if self.record:
+            self.files_written.add(path)
+
+    def newer(self, source, target):
+        """Tell if the target is newer than the source.
+
+        Returns true if 'source' exists and is more recently modified than
+        'target', or if 'source' exists and 'target' doesn't.
+
+        Returns false if both exist and 'target' is the same age or younger
+        than 'source'. Raise PackagingFileError if 'source' does not exist.
+
+        Note that this test is not very accurate: files created in the same
+        second will have the same "age".
+        """
+        if not os.path.exists(source):
+            raise DistlibException("file '%r' does not exist" %
+                                   os.path.abspath(source))
+        if not os.path.exists(target):
+            return True
+
+        return os.stat(source).st_mtime > os.stat(target).st_mtime
+
+    def copy_file(self, infile, outfile, check=True):
+        """Copy a file respecting dry-run and force flags.
+        """
+        self.ensure_dir(os.path.dirname(outfile))
+        logger.info('Copying %s to %s', infile, outfile)
+        if not self.dry_run:
+            msg = None
+            if check:
+                if os.path.islink(outfile):
+                    msg = '%s is a symlink' % outfile
+                elif os.path.exists(outfile) and not os.path.isfile(outfile):
+                    msg = '%s is a non-regular file' % outfile
+            if msg:
+                raise ValueError(msg + ' which would be overwritten')
+            shutil.copyfile(infile, outfile)
+        self.record_as_written(outfile)
+
+    def copy_stream(self, instream, outfile, encoding=None):
+        assert not os.path.isdir(outfile)
+        self.ensure_dir(os.path.dirname(outfile))
+        logger.info('Copying stream %s to %s', instream, outfile)
+        if not self.dry_run:
+            if encoding is None:
+                outstream = open(outfile, 'wb')
+            else:
+                outstream = codecs.open(outfile, 'w', encoding=encoding)
+            try:
+                shutil.copyfileobj(instream, outstream)
+            finally:
+                outstream.close()
+        self.record_as_written(outfile)
+
+    def write_binary_file(self, path, data):
+        self.ensure_dir(os.path.dirname(path))
+        if not self.dry_run:
+            with open(path, 'wb') as f:
+                f.write(data)
+        self.record_as_written(path)
+
+    def write_text_file(self, path, data, encoding):
+        self.ensure_dir(os.path.dirname(path))
+        if not self.dry_run:
+            with open(path, 'wb') as f:
+                f.write(data.encode(encoding))
+        self.record_as_written(path)
+
+    def set_mode(self, bits, mask, files):
+        if os.name == 'posix' or (os.name == 'java' and os._name == 'posix'):
+            # Set the executable bits (owner, group, and world) on
+            # all the files specified.
+            for f in files:
+                if self.dry_run:
+                    logger.info("changing mode of %s", f)
+                else:
+                    mode = (os.stat(f).st_mode | bits) & mask
+                    logger.info("changing mode of %s to %o", f, mode)
+                    os.chmod(f, mode)
+
+    set_executable_mode = lambda s, f: s.set_mode(0o555, 0o7777, f)
+
+    def ensure_dir(self, path):
+        path = os.path.abspath(path)
+        if path not in self.ensured and not os.path.exists(path):
+            self.ensured.add(path)
+            d, f = os.path.split(path)
+            self.ensure_dir(d)
+            logger.info('Creating %s' % path)
+            if not self.dry_run:
+                os.mkdir(path)
+            if self.record:
+                self.dirs_created.add(path)
+
+    def byte_compile(self, path, optimize=False, force=False, prefix=None):
+        dpath = cache_from_source(path, not optimize)
+        logger.info('Byte-compiling %s to %s', path, dpath)
+        if not self.dry_run:
+            if force or self.newer(path, dpath):
+                if not prefix:
+                    diagpath = None
+                else:
+                    assert path.startswith(prefix)
+                    diagpath = path[len(prefix):]
+            py_compile.compile(path, dpath, diagpath, True)     # raise error
+        self.record_as_written(dpath)
+        return dpath
+
+    def ensure_removed(self, path):
+        if os.path.exists(path):
+            if os.path.isdir(path) and not os.path.islink(path):
+                logger.debug('Removing directory tree at %s', path)
+                if not self.dry_run:
+                    shutil.rmtree(path)
+                if self.record:
+                    if path in self.dirs_created:
+                        self.dirs_created.remove(path)
+            else:
+                if os.path.islink(path):
+                    s = 'link'
+                else:
+                    s = 'file'
+                logger.debug('Removing %s %s', s, path)
+                if not self.dry_run:
+                    os.remove(path)
+                if self.record:
+                    if path in self.files_written:
+                        self.files_written.remove(path)
+
+    def is_writable(self, path):
+        result = False
+        while not result:
+            if os.path.exists(path):
+                result = os.access(path, os.W_OK)
+                break
+            parent = os.path.dirname(path)
+            if parent == path:
+                break
+            path = parent
+        return result
+
+    def commit(self):
+        """
+        Commit recorded changes, turn off recording, return
+        changes.
+        """
+        assert self.record
+        result = self.files_written, self.dirs_created
+        self._init_record()
+        return result
+
+    def rollback(self):
+        if not self.dry_run:
+            for f in list(self.files_written):
+                if os.path.exists(f):
+                    os.remove(f)
+            # dirs should all be empty now, except perhaps for
+            # __pycache__ subdirs
+            # reverse so that subdirs appear before their parents
+            dirs = sorted(self.dirs_created, reverse=True)
+            for d in dirs:
+                flist = os.listdir(d)
+                if flist:
+                    assert flist == ['__pycache__']
+                    sd = os.path.join(d, flist[0])
+                    os.rmdir(sd)
+                os.rmdir(d)     # should fail if non-empty
+        self._init_record()
+
+def resolve(module_name, dotted_path):
+    if module_name in sys.modules:
+        mod = sys.modules[module_name]
+    else:
+        mod = __import__(module_name)
+    if dotted_path is None:
+        result = mod
+    else:
+        parts = dotted_path.split('.')
+        result = getattr(mod, parts.pop(0))
+        for p in parts:
+            result = getattr(result, p)
+    return result
+
+
+class ExportEntry(object):
+    def __init__(self, name, prefix, suffix, flags):
+        self.name = name
+        self.prefix = prefix
+        self.suffix = suffix
+        self.flags = flags
+
+    @cached_property
+    def value(self):
+        return resolve(self.prefix, self.suffix)
+
+    def __repr__(self):  # pragma: no cover
+        return '<ExportEntry %s = %s:%s %s>' % (self.name, self.prefix,
+                                                self.suffix, self.flags)
+
+    def __eq__(self, other):
+        if not isinstance(other, ExportEntry):
+            result = False
+        else:
+            result = (self.name == other.name and
+                      self.prefix == other.prefix and
+                      self.suffix == other.suffix and
+                      self.flags == other.flags)
+        return result
+
+    __hash__ = object.__hash__
+
+
+ENTRY_RE = re.compile(r'''(?P<name>(\w|[-.+])+)
+                      \s*=\s*(?P<callable>(\w+)([:\.]\w+)*)
+                      \s*(\[\s*(?P<flags>\w+(=\w+)?(,\s*\w+(=\w+)?)*)\s*\])?
+                      ''', re.VERBOSE)
+
+def get_export_entry(specification):
+    m = ENTRY_RE.search(specification)
+    if not m:
+        result = None
+        if '[' in specification or ']' in specification:
+            raise DistlibException("Invalid specification "
+                                   "'%s'" % specification)
+    else:
+        d = m.groupdict()
+        name = d['name']
+        path = d['callable']
+        colons = path.count(':')
+        if colons == 0:
+            prefix, suffix = path, None
+        else:
+            if colons != 1:
+                raise DistlibException("Invalid specification "
+                                       "'%s'" % specification)
+            prefix, suffix = path.split(':')
+        flags = d['flags']
+        if flags is None:
+            if '[' in specification or ']' in specification:
+                raise DistlibException("Invalid specification "
+                                       "'%s'" % specification)
+            flags = []
+        else:
+            flags = [f.strip() for f in flags.split(',')]
+        result = ExportEntry(name, prefix, suffix, flags)
+    return result
+
+
+def get_cache_base(suffix=None):
+    """
+    Return the default base location for distlib caches. If the directory does
+    not exist, it is created. Use the suffix provided for the base directory,
+    and default to '.distlib' if it isn't provided.
+
+    On Windows, if LOCALAPPDATA is defined in the environment, then it is
+    assumed to be a directory, and will be the parent directory of the result.
+    On POSIX, and on Windows if LOCALAPPDATA is not defined, the user's home
+    directory - using os.expanduser('~') - will be the parent directory of
+    the result.
+
+    The result is just the directory '.distlib' in the parent directory as
+    determined above, or with the name specified with ``suffix``.
+    """
+    if suffix is None:
+        suffix = '.distlib'
+    if os.name == 'nt' and 'LOCALAPPDATA' in os.environ:
+        result = os.path.expandvars('$localappdata')
+    else:
+        # Assume posix, or old Windows
+        result = os.path.expanduser('~')
+    # we use 'isdir' instead of 'exists', because we want to
+    # fail if there's a file with that name
+    if os.path.isdir(result):
+        usable = os.access(result, os.W_OK)
+        if not usable:
+            logger.warning('Directory exists but is not writable: %s', result)
+    else:
+        try:
+            os.makedirs(result)
+            usable = True
+        except OSError:
+            logger.warning('Unable to create %s', result, exc_info=True)
+            usable = False
+    if not usable:
+        result = tempfile.mkdtemp()
+        logger.warning('Default location unusable, using %s', result)
+    return os.path.join(result, suffix)
+
+
+def path_to_cache_dir(path):
+    """
+    Convert an absolute path to a directory name for use in a cache.
+
+    The algorithm used is:
+
+    #. On Windows, any ``':'`` in the drive is replaced with ``'---'``.
+    #. Any occurrence of ``os.sep`` is replaced with ``'--'``.
+    #. ``'.cache'`` is appended.
+    """
+    d, p = os.path.splitdrive(os.path.abspath(path))
+    if d:
+        d = d.replace(':', '---')
+    p = p.replace(os.sep, '--')
+    return d + p + '.cache'
+
+
+def ensure_slash(s):
+    if not s.endswith('/'):
+        return s + '/'
+    return s
+
+
+def parse_credentials(netloc):
+    username = password = None
+    if '@' in netloc:
+        prefix, netloc = netloc.split('@', 1)
+        if ':' not in prefix:
+            username = prefix
+        else:
+            username, password = prefix.split(':', 1)
+    return username, password, netloc
+
+
+def get_process_umask():
+    result = os.umask(0o22)
+    os.umask(result)
+    return result
+
+def is_string_sequence(seq):
+    result = True
+    i = None
+    for i, s in enumerate(seq):
+        if not isinstance(s, string_types):
+            result = False
+            break
+    assert i is not None
+    return result
+
+PROJECT_NAME_AND_VERSION = re.compile('([a-z0-9_]+([.-][a-z_][a-z0-9_]*)*)-'
+                                      '([a-z0-9_.+-]+)', re.I)
+PYTHON_VERSION = re.compile(r'-py(\d\.?\d?)')
+
+
+def split_filename(filename, project_name=None):
+    """
+    Extract name, version, python version from a filename (no extension)
+
+    Return name, version, pyver or None
+    """
+    result = None
+    pyver = None
+    filename = unquote(filename).replace(' ', '-')
+    m = PYTHON_VERSION.search(filename)
+    if m:
+        pyver = m.group(1)
+        filename = filename[:m.start()]
+    if project_name and len(filename) > len(project_name) + 1:
+        m = re.match(re.escape(project_name) + r'\b', filename)
+        if m:
+            n = m.end()
+            result = filename[:n], filename[n + 1:], pyver
+    if result is None:
+        m = PROJECT_NAME_AND_VERSION.match(filename)
+        if m:
+            result = m.group(1), m.group(3), pyver
+    return result
+
+# Allow spaces in name because of legacy dists like "Twisted Core"
+NAME_VERSION_RE = re.compile(r'(?P<name>[\w .-]+)\s*'
+                             r'\(\s*(?P<ver>[^\s)]+)\)$')
+
+def parse_name_and_version(p):
+    """
+    A utility method used to get name and version from a string.
+
+    From e.g. a Provides-Dist value.
+
+    :param p: A value in a form 'foo (1.0)'
+    :return: The name and version as a tuple.
+    """
+    m = NAME_VERSION_RE.match(p)
+    if not m:
+        raise DistlibException('Ill-formed name/version string: \'%s\'' % p)
+    d = m.groupdict()
+    return d['name'].strip().lower(), d['ver']
+
+def get_extras(requested, available):
+    result = set()
+    requested = set(requested or [])
+    available = set(available or [])
+    if '*' in requested:
+        requested.remove('*')
+        result |= available
+    for r in requested:
+        if r == '-':
+            result.add(r)
+        elif r.startswith('-'):
+            unwanted = r[1:]
+            if unwanted not in available:
+                logger.warning('undeclared extra: %s' % unwanted)
+            if unwanted in result:
+                result.remove(unwanted)
+        else:
+            if r not in available:
+                logger.warning('undeclared extra: %s' % r)
+            result.add(r)
+    return result
+#
+# Extended metadata functionality
+#
+
+def _get_external_data(url):
+    result = {}
+    try:
+        # urlopen might fail if it runs into redirections,
+        # because of Python issue #13696. Fixed in locators
+        # using a custom redirect handler.
+        resp = urlopen(url)
+        headers = resp.info()
+        ct = headers.get('Content-Type')
+        if not ct.startswith('application/json'):
+            logger.debug('Unexpected response for JSON request: %s', ct)
+        else:
+            reader = codecs.getreader('utf-8')(resp)
+            #data = reader.read().decode('utf-8')
+            #result = json.loads(data)
+            result = json.load(reader)
+    except Exception as e:
+        logger.exception('Failed to get external data for %s: %s', url, e)
+    return result
+
+_external_data_base_url = 'https://www.red-dove.com/pypi/projects/'
+
+def get_project_data(name):
+    url = '%s/%s/project.json' % (name[0].upper(), name)
+    url = urljoin(_external_data_base_url, url)
+    result = _get_external_data(url)
+    return result
+
+def get_package_data(name, version):
+    url = '%s/%s/package-%s.json' % (name[0].upper(), name, version)
+    url = urljoin(_external_data_base_url, url)
+    return _get_external_data(url)
+
+
+class Cache(object):
+    """
+    A class implementing a cache for resources that need to live in the file system
+    e.g. shared libraries. This class was moved from resources to here because it
+    could be used by other modules, e.g. the wheel module.
+    """
+
+    def __init__(self, base):
+        """
+        Initialise an instance.
+
+        :param base: The base directory where the cache should be located.
+        """
+        # we use 'isdir' instead of 'exists', because we want to
+        # fail if there's a file with that name
+        if not os.path.isdir(base):  # pragma: no cover
+            os.makedirs(base)
+        if (os.stat(base).st_mode & 0o77) != 0:
+            logger.warning('Directory \'%s\' is not private', base)
+        self.base = os.path.abspath(os.path.normpath(base))
+
+    def prefix_to_dir(self, prefix):
+        """
+        Converts a resource prefix to a directory name in the cache.
+        """
+        return path_to_cache_dir(prefix)
+
+    def clear(self):
+        """
+        Clear the cache.
+        """
+        not_removed = []
+        for fn in os.listdir(self.base):
+            fn = os.path.join(self.base, fn)
+            try:
+                if os.path.islink(fn) or os.path.isfile(fn):
+                    os.remove(fn)
+                elif os.path.isdir(fn):
+                    shutil.rmtree(fn)
+            except Exception:
+                not_removed.append(fn)
+        return not_removed
+
+
+class EventMixin(object):
+    """
+    A very simple publish/subscribe system.
+    """
+    def __init__(self):
+        self._subscribers = {}
+
+    def add(self, event, subscriber, append=True):
+        """
+        Add a subscriber for an event.
+
+        :param event: The name of an event.
+        :param subscriber: The subscriber to be added (and called when the
+                           event is published).
+        :param append: Whether to append or prepend the subscriber to an
+                       existing subscriber list for the event.
+        """
+        subs = self._subscribers
+        if event not in subs:
+            subs[event] = deque([subscriber])
+        else:
+            sq = subs[event]
+            if append:
+                sq.append(subscriber)
+            else:
+                sq.appendleft(subscriber)
+
+    def remove(self, event, subscriber):
+        """
+        Remove a subscriber for an event.
+
+        :param event: The name of an event.
+        :param subscriber: The subscriber to be removed.
+        """
+        subs = self._subscribers
+        if event not in subs:
+            raise ValueError('No subscribers: %r' % event)
+        subs[event].remove(subscriber)
+
+    def get_subscribers(self, event):
+        """
+        Return an iterator for the subscribers for an event.
+        :param event: The event to return subscribers for.
+        """
+        return iter(self._subscribers.get(event, ()))
+
+    def publish(self, event, *args, **kwargs):
+        """
+        Publish a event and return a list of values returned by its
+        subscribers.
+
+        :param event: The event to publish.
+        :param args: The positional arguments to pass to the event's
+                     subscribers.
+        :param kwargs: The keyword arguments to pass to the event's
+                       subscribers.
+        """
+        result = []
+        for subscriber in self.get_subscribers(event):
+            try:
+                value = subscriber(event, *args, **kwargs)
+            except Exception:
+                logger.exception('Exception during event publication')
+                value = None
+            result.append(value)
+        logger.debug('publish %s: args = %s, kwargs = %s, result = %s',
+                     event, args, kwargs, result)
+        return result
+
+#
+# Simple sequencing
+#
+class Sequencer(object):
+    def __init__(self):
+        self._preds = {}
+        self._succs = {}
+        self._nodes = set()     # nodes with no preds/succs
+
+    def add_node(self, node):
+        self._nodes.add(node)
+
+    def remove_node(self, node, edges=False):
+        if node in self._nodes:
+            self._nodes.remove(node)
+        if edges:
+            for p in set(self._preds.get(node, ())):
+                self.remove(p, node)
+            for s in set(self._succs.get(node, ())):
+                self.remove(node, s)
+            # Remove empties
+            for k, v in list(self._preds.items()):
+                if not v:
+                    del self._preds[k]
+            for k, v in list(self._succs.items()):
+                if not v:
+                    del self._succs[k]
+
+    def add(self, pred, succ):
+        assert pred != succ
+        self._preds.setdefault(succ, set()).add(pred)
+        self._succs.setdefault(pred, set()).add(succ)
+
+    def remove(self, pred, succ):
+        assert pred != succ
+        try:
+            preds = self._preds[succ]
+            succs = self._succs[pred]
+        except KeyError:  # pragma: no cover
+            raise ValueError('%r not a successor of anything' % succ)
+        try:
+            preds.remove(pred)
+            succs.remove(succ)
+        except KeyError:  # pragma: no cover
+            raise ValueError('%r not a successor of %r' % (succ, pred))
+
+    def is_step(self, step):
+        return (step in self._preds or step in self._succs or
+                step in self._nodes)
+
+    def get_steps(self, final):
+        if not self.is_step(final):
+            raise ValueError('Unknown: %r' % final)
+        result = []
+        todo = []
+        seen = set()
+        todo.append(final)
+        while todo:
+            step = todo.pop(0)
+            if step in seen:
+                # if a step was already seen,
+                # move it to the end (so it will appear earlier
+                # when reversed on return) ... but not for the
+                # final step, as that would be confusing for
+                # users
+                if step != final:
+                    result.remove(step)
+                    result.append(step)
+            else:
+                seen.add(step)
+                result.append(step)
+                preds = self._preds.get(step, ())
+                todo.extend(preds)
+        return reversed(result)
+
+    @property
+    def strong_connections(self):
+        #http://en.wikipedia.org/wiki/Tarjan%27s_strongly_connected_components_algorithm
+        index_counter = [0]
+        stack = []
+        lowlinks = {}
+        index = {}
+        result = []
+
+        graph = self._succs
+
+        def strongconnect(node):
+            # set the depth index for this node to the smallest unused index
+            index[node] = index_counter[0]
+            lowlinks[node] = index_counter[0]
+            index_counter[0] += 1
+            stack.append(node)
+
+            # Consider successors
+            try:
+                successors = graph[node]
+            except Exception:
+                successors = []
+            for successor in successors:
+                if successor not in lowlinks:
+                    # Successor has not yet been visited
+                    strongconnect(successor)
+                    lowlinks[node] = min(lowlinks[node],lowlinks[successor])
+                elif successor in stack:
+                    # the successor is in the stack and hence in the current
+                    # strongly connected component (SCC)
+                    lowlinks[node] = min(lowlinks[node],index[successor])
+
+            # If `node` is a root node, pop the stack and generate an SCC
+            if lowlinks[node] == index[node]:
+                connected_component = []
+
+                while True:
+                    successor = stack.pop()
+                    connected_component.append(successor)
+                    if successor == node: break
+                component = tuple(connected_component)
+                # storing the result
+                result.append(component)
+
+        for node in graph:
+            if node not in lowlinks:
+                strongconnect(node)
+
+        return result
+
+    @property
+    def dot(self):
+        result = ['digraph G {']
+        for succ in self._preds:
+            preds = self._preds[succ]
+            for pred in preds:
+                result.append('  %s -> %s;' % (pred, succ))
+        for node in self._nodes:
+            result.append('  %s;' % node)
+        result.append('}')
+        return '\n'.join(result)
+
+#
+# Unarchiving functionality for zip, tar, tgz, tbz, whl
+#
+
+ARCHIVE_EXTENSIONS = ('.tar.gz', '.tar.bz2', '.tar', '.zip',
+                      '.tgz', '.tbz', '.whl')
+
+def unarchive(archive_filename, dest_dir, format=None, check=True):
+
+    def check_path(path):
+        if not isinstance(path, text_type):
+            path = path.decode('utf-8')
+        p = os.path.abspath(os.path.join(dest_dir, path))
+        if not p.startswith(dest_dir) or p[plen] != os.sep:
+            raise ValueError('path outside destination: %r' % p)
+
+    dest_dir = os.path.abspath(dest_dir)
+    plen = len(dest_dir)
+    archive = None
+    if format is None:
+        if archive_filename.endswith(('.zip', '.whl')):
+            format = 'zip'
+        elif archive_filename.endswith(('.tar.gz', '.tgz')):
+            format = 'tgz'
+            mode = 'r:gz'
+        elif archive_filename.endswith(('.tar.bz2', '.tbz')):
+            format = 'tbz'
+            mode = 'r:bz2'
+        elif archive_filename.endswith('.tar'):
+            format = 'tar'
+            mode = 'r'
+        else:  # pragma: no cover
+            raise ValueError('Unknown format for %r' % archive_filename)
+    try:
+        if format == 'zip':
+            archive = ZipFile(archive_filename, 'r')
+            if check:
+                names = archive.namelist()
+                for name in names:
+                    check_path(name)
+        else:
+            archive = tarfile.open(archive_filename, mode)
+            if check:
+                names = archive.getnames()
+                for name in names:
+                    check_path(name)
+        if format != 'zip' and sys.version_info[0] < 3:
+            # See Python issue 17153. If the dest path contains Unicode,
+            # tarfile extraction fails on Python 2.x if a member path name
+            # contains non-ASCII characters - it leads to an implicit
+            # bytes -> unicode conversion using ASCII to decode.
+            for tarinfo in archive.getmembers():
+                if not isinstance(tarinfo.name, text_type):
+                    tarinfo.name = tarinfo.name.decode('utf-8')
+        archive.extractall(dest_dir)
+
+    finally:
+        if archive:
+            archive.close()
+
+
+def zip_dir(directory):
+    """zip a directory tree into a BytesIO object"""
+    result = io.BytesIO()
+    dlen = len(directory)
+    with ZipFile(result, "w") as zf:
+        for root, dirs, files in os.walk(directory):
+            for name in files:
+                full = os.path.join(root, name)
+                rel = root[dlen:]
+                dest = os.path.join(rel, name)
+                zf.write(full, dest)
+    return result
+
+#
+# Simple progress bar
+#
+
+UNITS = ('', 'K', 'M', 'G','T','P')
+
+
+class Progress(object):
+    unknown = 'UNKNOWN'
+
+    def __init__(self, minval=0, maxval=100):
+        assert maxval is None or maxval >= minval
+        self.min = self.cur = minval
+        self.max = maxval
+        self.started = None
+        self.elapsed = 0
+        self.done = False
+
+    def update(self, curval):
+        assert self.min <= curval
+        assert self.max is None or curval <= self.max
+        self.cur = curval
+        now = time.time()
+        if self.started is None:
+            self.started = now
+        else:
+            self.elapsed = now - self.started
+
+    def increment(self, incr):
+        assert incr >= 0
+        self.update(self.cur + incr)
+
+    def start(self):
+        self.update(self.min)
+        return self
+
+    def stop(self):
+        if self.max is not None:
+            self.update(self.max)
+        self.done = True
+
+    @property
+    def maximum(self):
+        return self.unknown if self.max is None else self.max
+
+    @property
+    def percentage(self):
+        if self.done:
+            result = '100 %'
+        elif self.max is None:
+            result = ' ?? %'
+        else:
+            v = 100.0 * (self.cur - self.min) / (self.max - self.min)
+            result = '%3d %%' % v
+        return result
+
+    def format_duration(self, duration):
+        if (duration <= 0) and self.max is None or self.cur == self.min:
+            result = '??:??:??'
+        #elif duration < 1:
+        #    result = '--:--:--'
+        else:
+            result = time.strftime('%H:%M:%S', time.gmtime(duration))
+        return result
+
+    @property
+    def ETA(self):
+        if self.done:
+            prefix = 'Done'
+            t = self.elapsed
+            #import pdb; pdb.set_trace()
+        else:
+            prefix = 'ETA '
+            if self.max is None:
+                t = -1
+            elif self.elapsed == 0 or (self.cur == self.min):
+                t = 0
+            else:
+                #import pdb; pdb.set_trace()
+                t = float(self.max - self.min)
+                t /= self.cur - self.min
+                t = (t - 1) * self.elapsed
+        return '%s: %s' % (prefix, self.format_duration(t))
+
+    @property
+    def speed(self):
+        if self.elapsed == 0:
+            result = 0.0
+        else:
+            result = (self.cur - self.min) / self.elapsed
+        for unit in UNITS:
+            if result < 1000:
+                break
+            result /= 1000.0
+        return '%d %sB/s' % (result, unit)
+
+#
+# Glob functionality
+#
+
+RICH_GLOB = re.compile(r'\{([^}]*)\}')
+_CHECK_RECURSIVE_GLOB = re.compile(r'[^/\\,{]\*\*|\*\*[^/\\,}]')
+_CHECK_MISMATCH_SET = re.compile(r'^[^{]*\}|\{[^}]*$')
+
+
+def iglob(path_glob):
+    """Extended globbing function that supports ** and {opt1,opt2,opt3}."""
+    if _CHECK_RECURSIVE_GLOB.search(path_glob):
+        msg = """invalid glob %r: recursive glob "**" must be used alone"""
+        raise ValueError(msg % path_glob)
+    if _CHECK_MISMATCH_SET.search(path_glob):
+        msg = """invalid glob %r: mismatching set marker '{' or '}'"""
+        raise ValueError(msg % path_glob)
+    return _iglob(path_glob)
+
+
+def _iglob(path_glob):
+    rich_path_glob = RICH_GLOB.split(path_glob, 1)
+    if len(rich_path_glob) > 1:
+        assert len(rich_path_glob) == 3, rich_path_glob
+        prefix, set, suffix = rich_path_glob
+        for item in set.split(','):
+            for path in _iglob(''.join((prefix, item, suffix))):
+                yield path
+    else:
+        if '**' not in path_glob:
+            for item in std_iglob(path_glob):
+                yield item
+        else:
+            prefix, radical = path_glob.split('**', 1)
+            if prefix == '':
+                prefix = '.'
+            if radical == '':
+                radical = '*'
+            else:
+                # we support both
+                radical = radical.lstrip('/')
+                radical = radical.lstrip('\\')
+            for path, dir, files in os.walk(prefix):
+                path = os.path.normpath(path)
+                for fn in _iglob(os.path.join(path, radical)):
+                    yield fn
+
+if ssl:
+    from .compat import (HTTPSHandler as BaseHTTPSHandler, match_hostname,
+                         CertificateError)
+
+
+#
+# HTTPSConnection which verifies certificates/matches domains
+#
+
+    class HTTPSConnection(httplib.HTTPSConnection):
+        ca_certs = None # set this to the path to the certs file (.pem)
+        check_domain = True # only used if ca_certs is not None
+
+        # noinspection PyPropertyAccess
+        def connect(self):
+            sock = socket.create_connection((self.host, self.port), self.timeout)
+            if getattr(self, '_tunnel_host', False):
+                self.sock = sock
+                self._tunnel()
+
+            if not hasattr(ssl, 'SSLContext'):
+                # For 2.x
+                if self.ca_certs:
+                    cert_reqs = ssl.CERT_REQUIRED
+                else:
+                    cert_reqs = ssl.CERT_NONE
+                self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file,
+                                            cert_reqs=cert_reqs,
+                                            ssl_version=ssl.PROTOCOL_SSLv23,
+                                            ca_certs=self.ca_certs)
+            else:  # pragma: no cover
+                context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
+                context.options |= ssl.OP_NO_SSLv2
+                if self.cert_file:
+                    context.load_cert_chain(self.cert_file, self.key_file)
+                kwargs = {}
+                if self.ca_certs:
+                    context.verify_mode = ssl.CERT_REQUIRED
+                    context.load_verify_locations(cafile=self.ca_certs)
+                    if getattr(ssl, 'HAS_SNI', False):
+                        kwargs['server_hostname'] = self.host
+                self.sock = context.wrap_socket(sock, **kwargs)
+            if self.ca_certs and self.check_domain:
+                try:
+                    match_hostname(self.sock.getpeercert(), self.host)
+                    logger.debug('Host verified: %s', self.host)
+                except CertificateError:  # pragma: no cover
+                    self.sock.shutdown(socket.SHUT_RDWR)
+                    self.sock.close()
+                    raise
+
+    class HTTPSHandler(BaseHTTPSHandler):
+        def __init__(self, ca_certs, check_domain=True):
+            BaseHTTPSHandler.__init__(self)
+            self.ca_certs = ca_certs
+            self.check_domain = check_domain
+
+        def _conn_maker(self, *args, **kwargs):
+            """
+            This is called to create a connection instance. Normally you'd
+            pass a connection class to do_open, but it doesn't actually check for
+            a class, and just expects a callable. As long as we behave just as a
+            constructor would have, we should be OK. If it ever changes so that
+            we *must* pass a class, we'll create an UnsafeHTTPSConnection class
+            which just sets check_domain to False in the class definition, and
+            choose which one to pass to do_open.
+            """
+            result = HTTPSConnection(*args, **kwargs)
+            if self.ca_certs:
+                result.ca_certs = self.ca_certs
+                result.check_domain = self.check_domain
+            return result
+
+        def https_open(self, req):
+            try:
+                return self.do_open(self._conn_maker, req)
+            except URLError as e:
+                if 'certificate verify failed' in str(e.reason):
+                    raise CertificateError('Unable to verify server certificate '
+                                           'for %s' % req.host)
+                else:
+                    raise
+
+    #
+    # To prevent against mixing HTTP traffic with HTTPS (examples: A Man-In-The-
+    # Middle proxy using HTTP listens on port 443, or an index mistakenly serves
+    # HTML containing a http://xyz link when it should be https://xyz),
+    # you can use the following handler class, which does not allow HTTP traffic.
+    #
+    # It works by inheriting from HTTPHandler - so build_opener won't add a
+    # handler for HTTP itself.
+    #
+    class HTTPSOnlyHandler(HTTPSHandler, HTTPHandler):
+        def http_open(self, req):
+            raise URLError('Unexpected HTTP request on what should be a secure '
+                           'connection: %s' % req)
+
+#
+# XML-RPC with timeouts
+#
+
+_ver_info = sys.version_info[:2]
+
+if _ver_info == (2, 6):
+    class HTTP(httplib.HTTP):
+        def __init__(self, host='', port=None, **kwargs):
+            if port == 0:   # 0 means use port 0, not the default port
+                port = None
+            self._setup(self._connection_class(host, port, **kwargs))
+
+
+    if ssl:
+        class HTTPS(httplib.HTTPS):
+            def __init__(self, host='', port=None, **kwargs):
+                if port == 0:   # 0 means use port 0, not the default port
+                    port = None
+                self._setup(self._connection_class(host, port, **kwargs))
+
+
+class Transport(xmlrpclib.Transport):
+    def __init__(self, timeout, use_datetime=0):
+        self.timeout = timeout
+        xmlrpclib.Transport.__init__(self, use_datetime)
+
+    def make_connection(self, host):
+        h, eh, x509 = self.get_host_info(host)
+        if _ver_info == (2, 6):
+            result = HTTP(h, timeout=self.timeout)
+        else:
+            if not self._connection or host != self._connection[0]:
+                self._extra_headers = eh
+                self._connection = host, httplib.HTTPConnection(h)
+            result = self._connection[1]
+        return result
+
+if ssl:
+    class SafeTransport(xmlrpclib.SafeTransport):
+        def __init__(self, timeout, use_datetime=0):
+            self.timeout = timeout
+            xmlrpclib.SafeTransport.__init__(self, use_datetime)
+
+        def make_connection(self, host):
+            h, eh, kwargs = self.get_host_info(host)
+            if not kwargs:
+                kwargs = {}
+            kwargs['timeout'] = self.timeout
+            if _ver_info == (2, 6):
+                result = HTTPS(host, None, **kwargs)
+            else:
+                if not self._connection or host != self._connection[0]:
+                    self._extra_headers = eh
+                    self._connection = host, httplib.HTTPSConnection(h, None,
+                                                                     **kwargs)
+                result = self._connection[1]
+            return result
+
+
+class ServerProxy(xmlrpclib.ServerProxy):
+    def __init__(self, uri, **kwargs):
+        self.timeout = timeout = kwargs.pop('timeout', None)
+        # The above classes only come into play if a timeout
+        # is specified
+        if timeout is not None:
+            scheme, _ = splittype(uri)
+            use_datetime = kwargs.get('use_datetime', 0)
+            if scheme == 'https':
+                tcls = SafeTransport
+            else:
+                tcls = Transport
+            kwargs['transport'] = t = tcls(timeout, use_datetime=use_datetime)
+            self.transport = t
+        xmlrpclib.ServerProxy.__init__(self, uri, **kwargs)
+
+#
+# CSV functionality. This is provided because on 2.x, the csv module can't
+# handle Unicode. However, we need to deal with Unicode in e.g. RECORD files.
+#
+
+def _csv_open(fn, mode, **kwargs):
+    if sys.version_info[0] < 3:
+        mode += 'b'
+    else:
+        kwargs['newline'] = ''
+    return open(fn, mode, **kwargs)
+
+
+class CSVBase(object):
+    defaults = {
+        'delimiter': str(','),      # The strs are used because we need native
+        'quotechar': str('"'),      # str in the csv API (2.x won't take
+        'lineterminator': str('\n') # Unicode)
+    }
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *exc_info):
+        self.stream.close()
+
+
+class CSVReader(CSVBase):
+    def __init__(self, **kwargs):
+        if 'stream' in kwargs:
+            stream = kwargs['stream']
+            if sys.version_info[0] >= 3:
+                # needs to be a text stream
+                stream = codecs.getreader('utf-8')(stream)
+            self.stream = stream
+        else:
+            self.stream = _csv_open(kwargs['path'], 'r')
+        self.reader = csv.reader(self.stream, **self.defaults)
+
+    def __iter__(self):
+        return self
+
+    def next(self):
+        result = next(self.reader)
+        if sys.version_info[0] < 3:
+            for i, item in enumerate(result):
+                if not isinstance(item, text_type):
+                    result[i] = item.decode('utf-8')
+        return result
+
+    __next__ = next
+
+class CSVWriter(CSVBase):
+    def __init__(self, fn, **kwargs):
+        self.stream = _csv_open(fn, 'w')
+        self.writer = csv.writer(self.stream, **self.defaults)
+
+    def writerow(self, row):
+        if sys.version_info[0] < 3:
+            r = []
+            for item in row:
+                if isinstance(item, text_type):
+                    item = item.encode('utf-8')
+                r.append(item)
+            row = r
+        self.writer.writerow(row)
+
+#
+#   Configurator functionality
+#
+
+class Configurator(BaseConfigurator):
+
+    value_converters = dict(BaseConfigurator.value_converters)
+    value_converters['inc'] = 'inc_convert'
+
+    def __init__(self, config, base=None):
+        super(Configurator, self).__init__(config)
+        self.base = base or os.getcwd()
+
+    def configure_custom(self, config):
+        def convert(o):
+            if isinstance(o, (list, tuple)):
+                result = type(o)([convert(i) for i in o])
+            elif isinstance(o, dict):
+                if '()' in o:
+                    result = self.configure_custom(o)
+                else:
+                    result = {}
+                    for k in o:
+                        result[k] = convert(o[k])
+            else:
+                result = self.convert(o)
+            return result
+
+        c = config.pop('()')
+        if not callable(c):
+            c = self.resolve(c)
+        props = config.pop('.', None)
+        # Check for valid identifiers
+        args = config.pop('[]', ())
+        if args:
+            args = tuple([convert(o) for o in args])
+        items = [(k, convert(config[k])) for k in config if valid_ident(k)]
+        kwargs = dict(items)
+        result = c(*args, **kwargs)
+        if props:
+            for n, v in props.items():
+                setattr(result, n, convert(v))
+        return result
+
+    def __getitem__(self, key):
+        result = self.config[key]
+        if isinstance(result, dict) and '()' in result:
+            self.config[key] = result = self.configure_custom(result)
+        return result
+
+    def inc_convert(self, value):
+        """Default converter for the inc:// protocol."""
+        if not os.path.isabs(value):
+            value = os.path.join(self.base, value)
+        with codecs.open(value, 'r', encoding='utf-8') as f:
+            result = json.load(f)
+        return result
+
+#
+# Mixin for running subprocesses and capturing their output
+#
+
+class SubprocessMixin(object):
+    def __init__(self, verbose=False, progress=None):
+        self.verbose = verbose
+        self.progress = progress
+
+    def reader(self, stream, context):
+        """
+        Read lines from a subprocess' output stream and either pass to a progress
+        callable (if specified) or write progress information to sys.stderr.
+        """
+        progress = self.progress
+        verbose = self.verbose
+        while True:
+            s = stream.readline()
+            if not s:
+                break
+            if progress is not None:
+                progress(s, context)
+            else:
+                if not verbose:
+                    sys.stderr.write('.')
+                else:
+                    sys.stderr.write(s.decode('utf-8'))
+                sys.stderr.flush()
+        stream.close()
+
+    def run_command(self, cmd, **kwargs):
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE, **kwargs)
+        t1 = threading.Thread(target=self.reader, args=(p.stdout, 'stdout'))
+        t1.start()
+        t2 = threading.Thread(target=self.reader, args=(p.stderr, 'stderr'))
+        t2.start()
+        p.wait()
+        t1.join()
+        t2.join()
+        if self.progress is not None:
+            self.progress('done.', 'main')
+        elif self.verbose:
+            sys.stderr.write('done.\n')
+        return p
+
+
+def normalize_name(name):
+    """Normalize a python package name a la PEP 503"""
+    # https://www.python.org/dev/peps/pep-0503/#normalized-names
+    return re.sub('[-_.]+', '-', name).lower()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/version.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/version.py
new file mode 100644
index 0000000..48c17c0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/version.py
@@ -0,0 +1,742 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2012-2016 The Python Software Foundation.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+"""
+Implementation of a flexible versioning scheme providing support for PEP-440,
+setuptools-compatible and semantic versioning.
+"""
+
+import logging
+import re
+
+from .compat import string_types
+
+__all__ = ['NormalizedVersion', 'NormalizedMatcher',
+           'LegacyVersion', 'LegacyMatcher',
+           'SemanticVersion', 'SemanticMatcher',
+           'UnsupportedVersionError', 'get_scheme']
+
+logger = logging.getLogger(__name__)
+
+
+class UnsupportedVersionError(ValueError):
+    """This is an unsupported version."""
+    pass
+
+
+class Version(object):
+    def __init__(self, s):
+        self._string = s = s.strip()
+        self._parts = parts = self.parse(s)
+        assert isinstance(parts, tuple)
+        assert len(parts) > 0
+
+    def parse(self, s):
+        raise NotImplementedError('please implement in a subclass')
+
+    def _check_compatible(self, other):
+        if type(self) != type(other):
+            raise TypeError('cannot compare %r and %r' % (self, other))
+
+    def __eq__(self, other):
+        self._check_compatible(other)
+        return self._parts == other._parts
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __lt__(self, other):
+        self._check_compatible(other)
+        return self._parts < other._parts
+
+    def __gt__(self, other):
+        return not (self.__lt__(other) or self.__eq__(other))
+
+    def __le__(self, other):
+        return self.__lt__(other) or self.__eq__(other)
+
+    def __ge__(self, other):
+        return self.__gt__(other) or self.__eq__(other)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    def __hash__(self):
+        return hash(self._parts)
+
+    def __repr__(self):
+        return "%s('%s')" % (self.__class__.__name__, self._string)
+
+    def __str__(self):
+        return self._string
+
+    @property
+    def is_prerelease(self):
+        raise NotImplementedError('Please implement in subclasses.')
+
+
+class Matcher(object):
+    version_class = None
+
+    dist_re = re.compile(r"^(\w[\s\w'.-]*)(\((.*)\))?")
+    comp_re = re.compile(r'^(<=|>=|<|>|!=|={2,3}|~=)?\s*([^\s,]+)$')
+    num_re = re.compile(r'^\d+(\.\d+)*$')
+
+    # value is either a callable or the name of a method
+    _operators = {
+        '<': lambda v, c, p: v < c,
+        '>': lambda v, c, p: v > c,
+        '<=': lambda v, c, p: v == c or v < c,
+        '>=': lambda v, c, p: v == c or v > c,
+        '==': lambda v, c, p: v == c,
+        '===': lambda v, c, p: v == c,
+        # by default, compatible => >=.
+        '~=': lambda v, c, p: v == c or v > c,
+        '!=': lambda v, c, p: v != c,
+    }
+
+    def __init__(self, s):
+        if self.version_class is None:
+            raise ValueError('Please specify a version class')
+        self._string = s = s.strip()
+        m = self.dist_re.match(s)
+        if not m:
+            raise ValueError('Not valid: %r' % s)
+        groups = m.groups('')
+        self.name = groups[0].strip()
+        self.key = self.name.lower()    # for case-insensitive comparisons
+        clist = []
+        if groups[2]:
+            constraints = [c.strip() for c in groups[2].split(',')]
+            for c in constraints:
+                m = self.comp_re.match(c)
+                if not m:
+                    raise ValueError('Invalid %r in %r' % (c, s))
+                groups = m.groups()
+                op = groups[0] or '~='
+                s = groups[1]
+                if s.endswith('.*'):
+                    if op not in ('==', '!='):
+                        raise ValueError('\'.*\' not allowed for '
+                                         '%r constraints' % op)
+                    # Could be a partial version (e.g. for '2.*') which
+                    # won't parse as a version, so keep it as a string
+                    vn, prefix = s[:-2], True
+                    if not self.num_re.match(vn):
+                        # Just to check that vn is a valid version
+                        self.version_class(vn)
+                else:
+                    # Should parse as a version, so we can create an
+                    # instance for the comparison
+                    vn, prefix = self.version_class(s), False
+                clist.append((op, vn, prefix))
+        self._parts = tuple(clist)
+
+    def match(self, version):
+        """
+        Check if the provided version matches the constraints.
+
+        :param version: The version to match against this instance.
+        :type version: String or :class:`Version` instance.
+        """
+        if isinstance(version, string_types):
+            version = self.version_class(version)
+        for operator, constraint, prefix in self._parts:
+            f = self._operators.get(operator)
+            if isinstance(f, string_types):
+                f = getattr(self, f)
+            if not f:
+                msg = ('%r not implemented '
+                       'for %s' % (operator, self.__class__.__name__))
+                raise NotImplementedError(msg)
+            if not f(version, constraint, prefix):
+                return False
+        return True
+
+    @property
+    def exact_version(self):
+        result = None
+        if len(self._parts) == 1 and self._parts[0][0] in ('==', '==='):
+            result = self._parts[0][1]
+        return result
+
+    def _check_compatible(self, other):
+        if type(self) != type(other) or self.name != other.name:
+            raise TypeError('cannot compare %s and %s' % (self, other))
+
+    def __eq__(self, other):
+        self._check_compatible(other)
+        return self.key == other.key and self._parts == other._parts
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    # See http://docs.python.org/reference/datamodel#object.__hash__
+    def __hash__(self):
+        return hash(self.key) + hash(self._parts)
+
+    def __repr__(self):
+        return "%s(%r)" % (self.__class__.__name__, self._string)
+
+    def __str__(self):
+        return self._string
+
+
+PEP440_VERSION_RE = re.compile(r'^v?(\d+!)?(\d+(\.\d+)*)((a|b|c|rc)(\d+))?'
+                               r'(\.(post)(\d+))?(\.(dev)(\d+))?'
+                               r'(\+([a-zA-Z\d]+(\.[a-zA-Z\d]+)?))?$')
+
+
+def _pep_440_key(s):
+    s = s.strip()
+    m = PEP440_VERSION_RE.match(s)
+    if not m:
+        raise UnsupportedVersionError('Not a valid version: %s' % s)
+    groups = m.groups()
+    nums = tuple(int(v) for v in groups[1].split('.'))
+    while len(nums) > 1 and nums[-1] == 0:
+        nums = nums[:-1]
+
+    if not groups[0]:
+        epoch = 0
+    else:
+        epoch = int(groups[0])
+    pre = groups[4:6]
+    post = groups[7:9]
+    dev = groups[10:12]
+    local = groups[13]
+    if pre == (None, None):
+        pre = ()
+    else:
+        pre = pre[0], int(pre[1])
+    if post == (None, None):
+        post = ()
+    else:
+        post = post[0], int(post[1])
+    if dev == (None, None):
+        dev = ()
+    else:
+        dev = dev[0], int(dev[1])
+    if local is None:
+        local = ()
+    else:
+        parts = []
+        for part in local.split('.'):
+            # to ensure that numeric compares as > lexicographic, avoid
+            # comparing them directly, but encode a tuple which ensures
+            # correct sorting
+            if part.isdigit():
+                part = (1, int(part))
+            else:
+                part = (0, part)
+            parts.append(part)
+        local = tuple(parts)
+    if not pre:
+        # either before pre-release, or final release and after
+        if not post and dev:
+            # before pre-release
+            pre = ('a', -1)     # to sort before a0
+        else:
+            pre = ('z',)        # to sort after all pre-releases
+    # now look at the state of post and dev.
+    if not post:
+        post = ('_',)   # sort before 'a'
+    if not dev:
+        dev = ('final',)
+
+    #print('%s -> %s' % (s, m.groups()))
+    return epoch, nums, pre, post, dev, local
+
+
+_normalized_key = _pep_440_key
+
+
+class NormalizedVersion(Version):
+    """A rational version.
+
+    Good:
+        1.2         # equivalent to "1.2.0"
+        1.2.0
+        1.2a1
+        1.2.3a2
+        1.2.3b1
+        1.2.3c1
+        1.2.3.4
+        TODO: fill this out
+
+    Bad:
+        1           # minimum two numbers
+        1.2a        # release level must have a release serial
+        1.2.3b
+    """
+    def parse(self, s):
+        result = _normalized_key(s)
+        # _normalized_key loses trailing zeroes in the release
+        # clause, since that's needed to ensure that X.Y == X.Y.0 == X.Y.0.0
+        # However, PEP 440 prefix matching needs it: for example,
+        # (~= 1.4.5.0) matches differently to (~= 1.4.5.0.0).
+        m = PEP440_VERSION_RE.match(s)      # must succeed
+        groups = m.groups()
+        self._release_clause = tuple(int(v) for v in groups[1].split('.'))
+        return result
+
+    PREREL_TAGS = set(['a', 'b', 'c', 'rc', 'dev'])
+
+    @property
+    def is_prerelease(self):
+        return any(t[0] in self.PREREL_TAGS for t in self._parts if t)
+
+
+def _match_prefix(x, y):
+    x = str(x)
+    y = str(y)
+    if x == y:
+        return True
+    if not x.startswith(y):
+        return False
+    n = len(y)
+    return x[n] == '.'
+
+
+class NormalizedMatcher(Matcher):
+    version_class = NormalizedVersion
+
+    # value is either a callable or the name of a method
+    _operators = {
+        '~=': '_match_compatible',
+        '<': '_match_lt',
+        '>': '_match_gt',
+        '<=': '_match_le',
+        '>=': '_match_ge',
+        '==': '_match_eq',
+        '===': '_match_arbitrary',
+        '!=': '_match_ne',
+    }
+
+    def _adjust_local(self, version, constraint, prefix):
+        if prefix:
+            strip_local = '+' not in constraint and version._parts[-1]
+        else:
+            # both constraint and version are
+            # NormalizedVersion instances.
+            # If constraint does not have a local component,
+            # ensure the version doesn't, either.
+            strip_local = not constraint._parts[-1] and version._parts[-1]
+        if strip_local:
+            s = version._string.split('+', 1)[0]
+            version = self.version_class(s)
+        return version, constraint
+
+    def _match_lt(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version >= constraint:
+            return False
+        release_clause = constraint._release_clause
+        pfx = '.'.join([str(i) for i in release_clause])
+        return not _match_prefix(version, pfx)
+
+    def _match_gt(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version <= constraint:
+            return False
+        release_clause = constraint._release_clause
+        pfx = '.'.join([str(i) for i in release_clause])
+        return not _match_prefix(version, pfx)
+
+    def _match_le(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        return version <= constraint
+
+    def _match_ge(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        return version >= constraint
+
+    def _match_eq(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if not prefix:
+            result = (version == constraint)
+        else:
+            result = _match_prefix(version, constraint)
+        return result
+
+    def _match_arbitrary(self, version, constraint, prefix):
+        return str(version) == str(constraint)
+
+    def _match_ne(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if not prefix:
+            result = (version != constraint)
+        else:
+            result = not _match_prefix(version, constraint)
+        return result
+
+    def _match_compatible(self, version, constraint, prefix):
+        version, constraint = self._adjust_local(version, constraint, prefix)
+        if version == constraint:
+            return True
+        if version < constraint:
+            return False
+#        if not prefix:
+#            return True
+        release_clause = constraint._release_clause
+        if len(release_clause) > 1:
+            release_clause = release_clause[:-1]
+        pfx = '.'.join([str(i) for i in release_clause])
+        return _match_prefix(version, pfx)
+
+_REPLACEMENTS = (
+    (re.compile('[.+-]$'), ''),                     # remove trailing puncts
+    (re.compile(r'^[.](\d)'), r'0.\1'),             # .N -> 0.N at start
+    (re.compile('^[.-]'), ''),                      # remove leading puncts
+    (re.compile(r'^\((.*)\)$'), r'\1'),             # remove parentheses
+    (re.compile(r'^v(ersion)?\s*(\d+)'), r'\2'),    # remove leading v(ersion)
+    (re.compile(r'^r(ev)?\s*(\d+)'), r'\2'),        # remove leading v(ersion)
+    (re.compile('[.]{2,}'), '.'),                   # multiple runs of '.'
+    (re.compile(r'\b(alfa|apha)\b'), 'alpha'),      # misspelt alpha
+    (re.compile(r'\b(pre-alpha|prealpha)\b'),
+                'pre.alpha'),                       # standardise
+    (re.compile(r'\(beta\)$'), 'beta'),             # remove parentheses
+)
+
+_SUFFIX_REPLACEMENTS = (
+    (re.compile('^[:~._+-]+'), ''),                   # remove leading puncts
+    (re.compile('[,*")([\]]'), ''),                   # remove unwanted chars
+    (re.compile('[~:+_ -]'), '.'),                    # replace illegal chars
+    (re.compile('[.]{2,}'), '.'),                   # multiple runs of '.'
+    (re.compile(r'\.$'), ''),                       # trailing '.'
+)
+
+_NUMERIC_PREFIX = re.compile(r'(\d+(\.\d+)*)')
+
+
+def _suggest_semantic_version(s):
+    """
+    Try to suggest a semantic form for a version for which
+    _suggest_normalized_version couldn't come up with anything.
+    """
+    result = s.strip().lower()
+    for pat, repl in _REPLACEMENTS:
+        result = pat.sub(repl, result)
+    if not result:
+        result = '0.0.0'
+
+    # Now look for numeric prefix, and separate it out from
+    # the rest.
+    #import pdb; pdb.set_trace()
+    m = _NUMERIC_PREFIX.match(result)
+    if not m:
+        prefix = '0.0.0'
+        suffix = result
+    else:
+        prefix = m.groups()[0].split('.')
+        prefix = [int(i) for i in prefix]
+        while len(prefix) < 3:
+            prefix.append(0)
+        if len(prefix) == 3:
+            suffix = result[m.end():]
+        else:
+            suffix = '.'.join([str(i) for i in prefix[3:]]) + result[m.end():]
+            prefix = prefix[:3]
+        prefix = '.'.join([str(i) for i in prefix])
+        suffix = suffix.strip()
+    if suffix:
+        #import pdb; pdb.set_trace()
+        # massage the suffix.
+        for pat, repl in _SUFFIX_REPLACEMENTS:
+            suffix = pat.sub(repl, suffix)
+
+    if not suffix:
+        result = prefix
+    else:
+        sep = '-' if 'dev' in suffix else '+'
+        result = prefix + sep + suffix
+    if not is_semver(result):
+        result = None
+    return result
+
+
+def _suggest_normalized_version(s):
+    """Suggest a normalized version close to the given version string.
+
+    If you have a version string that isn't rational (i.e. NormalizedVersion
+    doesn't like it) then you might be able to get an equivalent (or close)
+    rational version from this function.
+
+    This does a number of simple normalizations to the given string, based
+    on observation of versions currently in use on PyPI. Given a dump of
+    those version during PyCon 2009, 4287 of them:
+    - 2312 (53.93%) match NormalizedVersion without change
+      with the automatic suggestion
+    - 3474 (81.04%) match when using this suggestion method
+
+    @param s {str} An irrational version string.
+    @returns A rational version string, or None, if couldn't determine one.
+    """
+    try:
+        _normalized_key(s)
+        return s   # already rational
+    except UnsupportedVersionError:
+        pass
+
+    rs = s.lower()
+
+    # part of this could use maketrans
+    for orig, repl in (('-alpha', 'a'), ('-beta', 'b'), ('alpha', 'a'),
+                       ('beta', 'b'), ('rc', 'c'), ('-final', ''),
+                       ('-pre', 'c'),
+                       ('-release', ''), ('.release', ''), ('-stable', ''),
+                       ('+', '.'), ('_', '.'), (' ', ''), ('.final', ''),
+                       ('final', '')):
+        rs = rs.replace(orig, repl)
+
+    # if something ends with dev or pre, we add a 0
+    rs = re.sub(r"pre$", r"pre0", rs)
+    rs = re.sub(r"dev$", r"dev0", rs)
+
+    # if we have something like "b-2" or "a.2" at the end of the
+    # version, that is probably beta, alpha, etc
+    # let's remove the dash or dot
+    rs = re.sub(r"([abc]|rc)[\-\.](\d+)$", r"\1\2", rs)
+
+    # 1.0-dev-r371 -> 1.0.dev371
+    # 0.1-dev-r79 -> 0.1.dev79
+    rs = re.sub(r"[\-\.](dev)[\-\.]?r?(\d+)$", r".\1\2", rs)
+
+    # Clean: 2.0.a.3, 2.0.b1, 0.9.0~c1
+    rs = re.sub(r"[.~]?([abc])\.?", r"\1", rs)
+
+    # Clean: v0.3, v1.0
+    if rs.startswith('v'):
+        rs = rs[1:]
+
+    # Clean leading '0's on numbers.
+    #TODO: unintended side-effect on, e.g., "2003.05.09"
+    # PyPI stats: 77 (~2%) better
+    rs = re.sub(r"\b0+(\d+)(?!\d)", r"\1", rs)
+
+    # Clean a/b/c with no version. E.g. "1.0a" -> "1.0a0". Setuptools infers
+    # zero.
+    # PyPI stats: 245 (7.56%) better
+    rs = re.sub(r"(\d+[abc])$", r"\g<1>0", rs)
+
+    # the 'dev-rNNN' tag is a dev tag
+    rs = re.sub(r"\.?(dev-r|dev\.r)\.?(\d+)$", r".dev\2", rs)
+
+    # clean the - when used as a pre delimiter
+    rs = re.sub(r"-(a|b|c)(\d+)$", r"\1\2", rs)
+
+    # a terminal "dev" or "devel" can be changed into ".dev0"
+    rs = re.sub(r"[\.\-](dev|devel)$", r".dev0", rs)
+
+    # a terminal "dev" can be changed into ".dev0"
+    rs = re.sub(r"(?![\.\-])dev$", r".dev0", rs)
+
+    # a terminal "final" or "stable" can be removed
+    rs = re.sub(r"(final|stable)$", "", rs)
+
+    # The 'r' and the '-' tags are post release tags
+    #   0.4a1.r10       ->  0.4a1.post10
+    #   0.9.33-17222    ->  0.9.33.post17222
+    #   0.9.33-r17222   ->  0.9.33.post17222
+    rs = re.sub(r"\.?(r|-|-r)\.?(\d+)$", r".post\2", rs)
+
+    # Clean 'r' instead of 'dev' usage:
+    #   0.9.33+r17222   ->  0.9.33.dev17222
+    #   1.0dev123       ->  1.0.dev123
+    #   1.0.git123      ->  1.0.dev123
+    #   1.0.bzr123      ->  1.0.dev123
+    #   0.1a0dev.123    ->  0.1a0.dev123
+    # PyPI stats:  ~150 (~4%) better
+    rs = re.sub(r"\.?(dev|git|bzr)\.?(\d+)$", r".dev\2", rs)
+
+    # Clean '.pre' (normalized from '-pre' above) instead of 'c' usage:
+    #   0.2.pre1        ->  0.2c1
+    #   0.2-c1         ->  0.2c1
+    #   1.0preview123   ->  1.0c123
+    # PyPI stats: ~21 (0.62%) better
+    rs = re.sub(r"\.?(pre|preview|-c)(\d+)$", r"c\g<2>", rs)
+
+    # Tcl/Tk uses "px" for their post release markers
+    rs = re.sub(r"p(\d+)$", r".post\1", rs)
+
+    try:
+        _normalized_key(rs)
+    except UnsupportedVersionError:
+        rs = None
+    return rs
+
+#
+#   Legacy version processing (distribute-compatible)
+#
+
+_VERSION_PART = re.compile(r'([a-z]+|\d+|[\.-])', re.I)
+_VERSION_REPLACE = {
+    'pre': 'c',
+    'preview': 'c',
+    '-': 'final-',
+    'rc': 'c',
+    'dev': '@',
+    '': None,
+    '.': None,
+}
+
+
+def _legacy_key(s):
+    def get_parts(s):
+        result = []
+        for p in _VERSION_PART.split(s.lower()):
+            p = _VERSION_REPLACE.get(p, p)
+            if p:
+                if '0' <= p[:1] <= '9':
+                    p = p.zfill(8)
+                else:
+                    p = '*' + p
+                result.append(p)
+        result.append('*final')
+        return result
+
+    result = []
+    for p in get_parts(s):
+        if p.startswith('*'):
+            if p < '*final':
+                while result and result[-1] == '*final-':
+                    result.pop()
+            while result and result[-1] == '00000000':
+                result.pop()
+        result.append(p)
+    return tuple(result)
+
+
+class LegacyVersion(Version):
+    def parse(self, s):
+        return _legacy_key(s)
+
+    @property
+    def is_prerelease(self):
+        result = False
+        for x in self._parts:
+            if (isinstance(x, string_types) and x.startswith('*') and
+                x < '*final'):
+                result = True
+                break
+        return result
+
+
+class LegacyMatcher(Matcher):
+    version_class = LegacyVersion
+
+    _operators = dict(Matcher._operators)
+    _operators['~='] = '_match_compatible'
+
+    numeric_re = re.compile('^(\d+(\.\d+)*)')
+
+    def _match_compatible(self, version, constraint, prefix):
+        if version < constraint:
+            return False
+        m = self.numeric_re.match(str(constraint))
+        if not m:
+            logger.warning('Cannot compute compatible match for version %s '
+                           ' and constraint %s', version, constraint)
+            return True
+        s = m.groups()[0]
+        if '.' in s:
+            s = s.rsplit('.', 1)[0]
+        return _match_prefix(version, s)
+
+#
+#   Semantic versioning
+#
+
+_SEMVER_RE = re.compile(r'^(\d+)\.(\d+)\.(\d+)'
+                        r'(-[a-z0-9]+(\.[a-z0-9-]+)*)?'
+                        r'(\+[a-z0-9]+(\.[a-z0-9-]+)*)?$', re.I)
+
+
+def is_semver(s):
+    return _SEMVER_RE.match(s)
+
+
+def _semantic_key(s):
+    def make_tuple(s, absent):
+        if s is None:
+            result = (absent,)
+        else:
+            parts = s[1:].split('.')
+            # We can't compare ints and strings on Python 3, so fudge it
+            # by zero-filling numeric values so simulate a numeric comparison
+            result = tuple([p.zfill(8) if p.isdigit() else p for p in parts])
+        return result
+
+    m = is_semver(s)
+    if not m:
+        raise UnsupportedVersionError(s)
+    groups = m.groups()
+    major, minor, patch = [int(i) for i in groups[:3]]
+    # choose the '|' and '*' so that versions sort correctly
+    pre, build = make_tuple(groups[3], '|'), make_tuple(groups[5], '*')
+    return (major, minor, patch), pre, build
+
+
+class SemanticVersion(Version):
+    def parse(self, s):
+        return _semantic_key(s)
+
+    @property
+    def is_prerelease(self):
+        return self._parts[1][0] != '|'
+
+
+class SemanticMatcher(Matcher):
+    version_class = SemanticVersion
+
+
+class VersionScheme(object):
+    def __init__(self, key, matcher, suggester=None):
+        self.key = key
+        self.matcher = matcher
+        self.suggester = suggester
+
+    def is_valid_version(self, s):
+        try:
+            self.matcher.version_class(s)
+            result = True
+        except UnsupportedVersionError:
+            result = False
+        return result
+
+    def is_valid_matcher(self, s):
+        try:
+            self.matcher(s)
+            result = True
+        except UnsupportedVersionError:
+            result = False
+        return result
+
+    def is_valid_constraint_list(self, s):
+        """
+        Used for processing some metadata fields
+        """
+        return self.is_valid_matcher('dummy_name (%s)' % s)
+
+    def suggest(self, s):
+        if self.suggester is None:
+            result = None
+        else:
+            result = self.suggester(s)
+        return result
+
+_SCHEMES = {
+    'normalized': VersionScheme(_normalized_key, NormalizedMatcher,
+                                _suggest_normalized_version),
+    'legacy': VersionScheme(_legacy_key, LegacyMatcher, lambda self, s: s),
+    'semantic': VersionScheme(_semantic_key, SemanticMatcher,
+                              _suggest_semantic_version),
+}
+
+_SCHEMES['default'] = _SCHEMES['normalized']
+
+
+def get_scheme(name):
+    if name not in _SCHEMES:
+        raise ValueError('unknown scheme name: %r' % name)
+    return _SCHEMES[name]
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/w32.exe b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/w32.exe
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/w64.exe b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/w64.exe
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/wheel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/wheel.py
new file mode 100644
index 0000000..2952b8e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distlib/wheel.py
@@ -0,0 +1,978 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013-2016 Vinay Sajip.
+# Licensed to the Python Software Foundation under a contributor agreement.
+# See LICENSE.txt and CONTRIBUTORS.txt.
+#
+from __future__ import unicode_literals
+
+import base64
+import codecs
+import datetime
+import distutils.util
+from email import message_from_file
+import hashlib
+import imp
+import json
+import logging
+import os
+import posixpath
+import re
+import shutil
+import sys
+import tempfile
+import zipfile
+
+from . import __version__, DistlibException
+from .compat import sysconfig, ZipFile, fsdecode, text_type, filter
+from .database import InstalledDistribution
+from .metadata import Metadata, METADATA_FILENAME
+from .util import (FileOperator, convert_path, CSVReader, CSVWriter, Cache,
+                   cached_property, get_cache_base, read_exports, tempdir)
+from .version import NormalizedVersion, UnsupportedVersionError
+
+logger = logging.getLogger(__name__)
+
+cache = None    # created when needed
+
+if hasattr(sys, 'pypy_version_info'):
+    IMP_PREFIX = 'pp'
+elif sys.platform.startswith('java'):
+    IMP_PREFIX = 'jy'
+elif sys.platform == 'cli':
+    IMP_PREFIX = 'ip'
+else:
+    IMP_PREFIX = 'cp'
+
+VER_SUFFIX = sysconfig.get_config_var('py_version_nodot')
+if not VER_SUFFIX:   # pragma: no cover
+    VER_SUFFIX = '%s%s' % sys.version_info[:2]
+PYVER = 'py' + VER_SUFFIX
+IMPVER = IMP_PREFIX + VER_SUFFIX
+
+ARCH = distutils.util.get_platform().replace('-', '_').replace('.', '_')
+
+ABI = sysconfig.get_config_var('SOABI')
+if ABI and ABI.startswith('cpython-'):
+    ABI = ABI.replace('cpython-', 'cp')
+else:
+    def _derive_abi():
+        parts = ['cp', VER_SUFFIX]
+        if sysconfig.get_config_var('Py_DEBUG'):
+            parts.append('d')
+        if sysconfig.get_config_var('WITH_PYMALLOC'):
+            parts.append('m')
+        if sysconfig.get_config_var('Py_UNICODE_SIZE') == 4:
+            parts.append('u')
+        return ''.join(parts)
+    ABI = _derive_abi()
+    del _derive_abi
+
+FILENAME_RE = re.compile(r'''
+(?P<nm>[^-]+)
+-(?P<vn>\d+[^-]*)
+(-(?P<bn>\d+[^-]*))?
+-(?P<py>\w+\d+(\.\w+\d+)*)
+-(?P<bi>\w+)
+-(?P<ar>\w+(\.\w+)*)
+\.whl$
+''', re.IGNORECASE | re.VERBOSE)
+
+NAME_VERSION_RE = re.compile(r'''
+(?P<nm>[^-]+)
+-(?P<vn>\d+[^-]*)
+(-(?P<bn>\d+[^-]*))?$
+''', re.IGNORECASE | re.VERBOSE)
+
+SHEBANG_RE = re.compile(br'\s*#![^\r\n]*')
+SHEBANG_DETAIL_RE = re.compile(br'^(\s*#!("[^"]+"|\S+))\s+(.*)$')
+SHEBANG_PYTHON = b'#!python'
+SHEBANG_PYTHONW = b'#!pythonw'
+
+if os.sep == '/':
+    to_posix = lambda o: o
+else:
+    to_posix = lambda o: o.replace(os.sep, '/')
+
+
+class Mounter(object):
+    def __init__(self):
+        self.impure_wheels = {}
+        self.libs = {}
+
+    def add(self, pathname, extensions):
+        self.impure_wheels[pathname] = extensions
+        self.libs.update(extensions)
+
+    def remove(self, pathname):
+        extensions = self.impure_wheels.pop(pathname)
+        for k, v in extensions:
+            if k in self.libs:
+                del self.libs[k]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.libs:
+            result = self
+        else:
+            result = None
+        return result
+
+    def load_module(self, fullname):
+        if fullname in sys.modules:
+            result = sys.modules[fullname]
+        else:
+            if fullname not in self.libs:
+                raise ImportError('unable to find extension for %s' % fullname)
+            result = imp.load_dynamic(fullname, self.libs[fullname])
+            result.__loader__ = self
+            parts = fullname.rsplit('.', 1)
+            if len(parts) > 1:
+                result.__package__ = parts[0]
+        return result
+
+_hook = Mounter()
+
+
+class Wheel(object):
+    """
+    Class to build and install from Wheel files (PEP 427).
+    """
+
+    wheel_version = (1, 1)
+    hash_kind = 'sha256'
+
+    def __init__(self, filename=None, sign=False, verify=False):
+        """
+        Initialise an instance using a (valid) filename.
+        """
+        self.sign = sign
+        self.should_verify = verify
+        self.buildver = ''
+        self.pyver = [PYVER]
+        self.abi = ['none']
+        self.arch = ['any']
+        self.dirname = os.getcwd()
+        if filename is None:
+            self.name = 'dummy'
+            self.version = '0.1'
+            self._filename = self.filename
+        else:
+            m = NAME_VERSION_RE.match(filename)
+            if m:
+                info = m.groupdict('')
+                self.name = info['nm']
+                # Reinstate the local version separator
+                self.version = info['vn'].replace('_', '-')
+                self.buildver = info['bn']
+                self._filename = self.filename
+            else:
+                dirname, filename = os.path.split(filename)
+                m = FILENAME_RE.match(filename)
+                if not m:
+                    raise DistlibException('Invalid name or '
+                                           'filename: %r' % filename)
+                if dirname:
+                    self.dirname = os.path.abspath(dirname)
+                self._filename = filename
+                info = m.groupdict('')
+                self.name = info['nm']
+                self.version = info['vn']
+                self.buildver = info['bn']
+                self.pyver = info['py'].split('.')
+                self.abi = info['bi'].split('.')
+                self.arch = info['ar'].split('.')
+
+    @property
+    def filename(self):
+        """
+        Build and return a filename from the various components.
+        """
+        if self.buildver:
+            buildver = '-' + self.buildver
+        else:
+            buildver = ''
+        pyver = '.'.join(self.pyver)
+        abi = '.'.join(self.abi)
+        arch = '.'.join(self.arch)
+        # replace - with _ as a local version separator
+        version = self.version.replace('-', '_')
+        return '%s-%s%s-%s-%s-%s.whl' % (self.name, version, buildver,
+                                         pyver, abi, arch)
+
+    @property
+    def exists(self):
+        path = os.path.join(self.dirname, self.filename)
+        return os.path.isfile(path)
+
+    @property
+    def tags(self):
+        for pyver in self.pyver:
+            for abi in self.abi:
+                for arch in self.arch:
+                    yield pyver, abi, arch
+
+    @cached_property
+    def metadata(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        wrapper = codecs.getreader('utf-8')
+        with ZipFile(pathname, 'r') as zf:
+            wheel_metadata = self.get_wheel_metadata(zf)
+            wv = wheel_metadata['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            if file_version < (1, 1):
+                fn = 'METADATA'
+            else:
+                fn = METADATA_FILENAME
+            try:
+                metadata_filename = posixpath.join(info_dir, fn)
+                with zf.open(metadata_filename) as bf:
+                    wf = wrapper(bf)
+                    result = Metadata(fileobj=wf)
+            except KeyError:
+                raise ValueError('Invalid wheel, because %s is '
+                                 'missing' % fn)
+        return result
+
+    def get_wheel_metadata(self, zf):
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        metadata_filename = posixpath.join(info_dir, 'WHEEL')
+        with zf.open(metadata_filename) as bf:
+            wf = codecs.getreader('utf-8')(bf)
+            message = message_from_file(wf)
+        return dict(message)
+
+    @cached_property
+    def info(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        with ZipFile(pathname, 'r') as zf:
+            result = self.get_wheel_metadata(zf)
+        return result
+
+    def process_shebang(self, data):
+        m = SHEBANG_RE.match(data)
+        if m:
+            end = m.end()
+            shebang, data_after_shebang = data[:end], data[end:]
+            # Preserve any arguments after the interpreter
+            if b'pythonw' in shebang.lower():
+                shebang_python = SHEBANG_PYTHONW
+            else:
+                shebang_python = SHEBANG_PYTHON
+            m = SHEBANG_DETAIL_RE.match(shebang)
+            if m:
+                args = b' ' + m.groups()[-1]
+            else:
+                args = b''
+            shebang = shebang_python + args
+            data = shebang + data_after_shebang
+        else:
+            cr = data.find(b'\r')
+            lf = data.find(b'\n')
+            if cr < 0 or cr > lf:
+                term = b'\n'
+            else:
+                if data[cr:cr + 2] == b'\r\n':
+                    term = b'\r\n'
+                else:
+                    term = b'\r'
+            data = SHEBANG_PYTHON + term + data
+        return data
+
+    def get_hash(self, data, hash_kind=None):
+        if hash_kind is None:
+            hash_kind = self.hash_kind
+        try:
+            hasher = getattr(hashlib, hash_kind)
+        except AttributeError:
+            raise DistlibException('Unsupported hash algorithm: %r' % hash_kind)
+        result = hasher(data).digest()
+        result = base64.urlsafe_b64encode(result).rstrip(b'=').decode('ascii')
+        return hash_kind, result
+
+    def write_record(self, records, record_path, base):
+        records = list(records) # make a copy for sorting
+        p = to_posix(os.path.relpath(record_path, base))
+        records.append((p, '', ''))
+        records.sort()
+        with CSVWriter(record_path) as writer:
+            for row in records:
+                writer.writerow(row)
+
+    def write_records(self, info, libdir, archive_paths):
+        records = []
+        distinfo, info_dir = info
+        hasher = getattr(hashlib, self.hash_kind)
+        for ap, p in archive_paths:
+            with open(p, 'rb') as f:
+                data = f.read()
+            digest = '%s=%s' % self.get_hash(data)
+            size = os.path.getsize(p)
+            records.append((ap, digest, size))
+
+        p = os.path.join(distinfo, 'RECORD')
+        self.write_record(records, p, libdir)
+        ap = to_posix(os.path.join(info_dir, 'RECORD'))
+        archive_paths.append((ap, p))
+
+    def build_zip(self, pathname, archive_paths):
+        with ZipFile(pathname, 'w', zipfile.ZIP_DEFLATED) as zf:
+            for ap, p in archive_paths:
+                logger.debug('Wrote %s to %s in wheel', p, ap)
+                zf.write(p, ap)
+
+    def build(self, paths, tags=None, wheel_version=None):
+        """
+        Build a wheel from files in specified paths, and use any specified tags
+        when determining the name of the wheel.
+        """
+        if tags is None:
+            tags = {}
+
+        libkey = list(filter(lambda o: o in paths, ('purelib', 'platlib')))[0]
+        if libkey == 'platlib':
+            is_pure = 'false'
+            default_pyver = [IMPVER]
+            default_abi = [ABI]
+            default_arch = [ARCH]
+        else:
+            is_pure = 'true'
+            default_pyver = [PYVER]
+            default_abi = ['none']
+            default_arch = ['any']
+
+        self.pyver = tags.get('pyver', default_pyver)
+        self.abi = tags.get('abi', default_abi)
+        self.arch = tags.get('arch', default_arch)
+
+        libdir = paths[libkey]
+
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        archive_paths = []
+
+        # First, stuff which is not in site-packages
+        for key in ('data', 'headers', 'scripts'):
+            if key not in paths:
+                continue
+            path = paths[key]
+            if os.path.isdir(path):
+                for root, dirs, files in os.walk(path):
+                    for fn in files:
+                        p = fsdecode(os.path.join(root, fn))
+                        rp = os.path.relpath(p, path)
+                        ap = to_posix(os.path.join(data_dir, key, rp))
+                        archive_paths.append((ap, p))
+                        if key == 'scripts' and not p.endswith('.exe'):
+                            with open(p, 'rb') as f:
+                                data = f.read()
+                            data = self.process_shebang(data)
+                            with open(p, 'wb') as f:
+                                f.write(data)
+
+        # Now, stuff which is in site-packages, other than the
+        # distinfo stuff.
+        path = libdir
+        distinfo = None
+        for root, dirs, files in os.walk(path):
+            if root == path:
+                # At the top level only, save distinfo for later
+                # and skip it for now
+                for i, dn in enumerate(dirs):
+                    dn = fsdecode(dn)
+                    if dn.endswith('.dist-info'):
+                        distinfo = os.path.join(root, dn)
+                        del dirs[i]
+                        break
+                assert distinfo, '.dist-info directory expected, not found'
+
+            for fn in files:
+                # comment out next suite to leave .pyc files in
+                if fsdecode(fn).endswith(('.pyc', '.pyo')):
+                    continue
+                p = os.path.join(root, fn)
+                rp = to_posix(os.path.relpath(p, path))
+                archive_paths.append((rp, p))
+
+        # Now distinfo. Assumed to be flat, i.e. os.listdir is enough.
+        files = os.listdir(distinfo)
+        for fn in files:
+            if fn not in ('RECORD', 'INSTALLER', 'SHARED', 'WHEEL'):
+                p = fsdecode(os.path.join(distinfo, fn))
+                ap = to_posix(os.path.join(info_dir, fn))
+                archive_paths.append((ap, p))
+
+        wheel_metadata = [
+            'Wheel-Version: %d.%d' % (wheel_version or self.wheel_version),
+            'Generator: distlib %s' % __version__,
+            'Root-Is-Purelib: %s' % is_pure,
+        ]
+        for pyver, abi, arch in self.tags:
+            wheel_metadata.append('Tag: %s-%s-%s' % (pyver, abi, arch))
+        p = os.path.join(distinfo, 'WHEEL')
+        with open(p, 'w') as f:
+            f.write('\n'.join(wheel_metadata))
+        ap = to_posix(os.path.join(info_dir, 'WHEEL'))
+        archive_paths.append((ap, p))
+
+        # Now, at last, RECORD.
+        # Paths in here are archive paths - nothing else makes sense.
+        self.write_records((distinfo, info_dir), libdir, archive_paths)
+        # Now, ready to build the zip file
+        pathname = os.path.join(self.dirname, self.filename)
+        self.build_zip(pathname, archive_paths)
+        return pathname
+
+    def install(self, paths, maker, **kwargs):
+        """
+        Install a wheel to the specified paths. If kwarg ``warner`` is
+        specified, it should be a callable, which will be called with two
+        tuples indicating the wheel version of this software and the wheel
+        version in the file, if there is a discrepancy in the versions.
+        This can be used to issue any warnings to raise any exceptions.
+        If kwarg ``lib_only`` is True, only the purelib/platlib files are
+        installed, and the headers, scripts, data and dist-info metadata are
+        not written.
+
+        The return value is a :class:`InstalledDistribution` instance unless
+        ``options.lib_only`` is True, in which case the return value is ``None``.
+        """
+
+        dry_run = maker.dry_run
+        warner = kwargs.get('warner')
+        lib_only = kwargs.get('lib_only', False)
+
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        metadata_name = posixpath.join(info_dir, METADATA_FILENAME)
+        wheel_metadata_name = posixpath.join(info_dir, 'WHEEL')
+        record_name = posixpath.join(info_dir, 'RECORD')
+
+        wrapper = codecs.getreader('utf-8')
+
+        with ZipFile(pathname, 'r') as zf:
+            with zf.open(wheel_metadata_name) as bwf:
+                wf = wrapper(bwf)
+                message = message_from_file(wf)
+            wv = message['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            if (file_version != self.wheel_version) and warner:
+                warner(self.wheel_version, file_version)
+
+            if message['Root-Is-Purelib'] == 'true':
+                libdir = paths['purelib']
+            else:
+                libdir = paths['platlib']
+
+            records = {}
+            with zf.open(record_name) as bf:
+                with CSVReader(stream=bf) as reader:
+                    for row in reader:
+                        p = row[0]
+                        records[p] = row
+
+            data_pfx = posixpath.join(data_dir, '')
+            info_pfx = posixpath.join(info_dir, '')
+            script_pfx = posixpath.join(data_dir, 'scripts', '')
+
+            # make a new instance rather than a copy of maker's,
+            # as we mutate it
+            fileop = FileOperator(dry_run=dry_run)
+            fileop.record = True    # so we can rollback if needed
+
+            bc = not sys.dont_write_bytecode    # Double negatives. Lovely!
+
+            outfiles = []   # for RECORD writing
+
+            # for script copying/shebang processing
+            workdir = tempfile.mkdtemp()
+            # set target dir later
+            # we default add_launchers to False, as the
+            # Python Launcher should be used instead
+            maker.source_dir = workdir
+            maker.target_dir = None
+            try:
+                for zinfo in zf.infolist():
+                    arcname = zinfo.filename
+                    if isinstance(arcname, text_type):
+                        u_arcname = arcname
+                    else:
+                        u_arcname = arcname.decode('utf-8')
+                    # The signature file won't be in RECORD,
+                    # and we  don't currently don't do anything with it
+                    if u_arcname.endswith('/RECORD.jws'):
+                        continue
+                    row = records[u_arcname]
+                    if row[2] and str(zinfo.file_size) != row[2]:
+                        raise DistlibException('size mismatch for '
+                                               '%s' % u_arcname)
+                    if row[1]:
+                        kind, value = row[1].split('=', 1)
+                        with zf.open(arcname) as bf:
+                            data = bf.read()
+                        _, digest = self.get_hash(data, kind)
+                        if digest != value:
+                            raise DistlibException('digest mismatch for '
+                                                   '%s' % arcname)
+
+                    if lib_only and u_arcname.startswith((info_pfx, data_pfx)):
+                        logger.debug('lib_only: skipping %s', u_arcname)
+                        continue
+                    is_script = (u_arcname.startswith(script_pfx)
+                                 and not u_arcname.endswith('.exe'))
+
+                    if u_arcname.startswith(data_pfx):
+                        _, where, rp = u_arcname.split('/', 2)
+                        outfile = os.path.join(paths[where], convert_path(rp))
+                    else:
+                        # meant for site-packages.
+                        if u_arcname in (wheel_metadata_name, record_name):
+                            continue
+                        outfile = os.path.join(libdir, convert_path(u_arcname))
+                    if not is_script:
+                        with zf.open(arcname) as bf:
+                            fileop.copy_stream(bf, outfile)
+                        outfiles.append(outfile)
+                        # Double check the digest of the written file
+                        if not dry_run and row[1]:
+                            with open(outfile, 'rb') as bf:
+                                data = bf.read()
+                                _, newdigest = self.get_hash(data, kind)
+                                if newdigest != digest:
+                                    raise DistlibException('digest mismatch '
+                                                           'on write for '
+                                                           '%s' % outfile)
+                        if bc and outfile.endswith('.py'):
+                            try:
+                                pyc = fileop.byte_compile(outfile)
+                                outfiles.append(pyc)
+                            except Exception:
+                                # Don't give up if byte-compilation fails,
+                                # but log it and perhaps warn the user
+                                logger.warning('Byte-compilation failed',
+                                               exc_info=True)
+                    else:
+                        fn = os.path.basename(convert_path(arcname))
+                        workname = os.path.join(workdir, fn)
+                        with zf.open(arcname) as bf:
+                            fileop.copy_stream(bf, workname)
+
+                        dn, fn = os.path.split(outfile)
+                        maker.target_dir = dn
+                        filenames = maker.make(fn)
+                        fileop.set_executable_mode(filenames)
+                        outfiles.extend(filenames)
+
+                if lib_only:
+                    logger.debug('lib_only: returning None')
+                    dist = None
+                else:
+                    # Generate scripts
+
+                    # Try to get pydist.json so we can see if there are
+                    # any commands to generate. If this fails (e.g. because
+                    # of a legacy wheel), log a warning but don't give up.
+                    commands = None
+                    file_version = self.info['Wheel-Version']
+                    if file_version == '1.0':
+                        # Use legacy info
+                        ep = posixpath.join(info_dir, 'entry_points.txt')
+                        try:
+                            with zf.open(ep) as bwf:
+                                epdata = read_exports(bwf)
+                            commands = {}
+                            for key in ('console', 'gui'):
+                                k = '%s_scripts' % key
+                                if k in epdata:
+                                    commands['wrap_%s' % key] = d = {}
+                                    for v in epdata[k].values():
+                                        s = '%s:%s' % (v.prefix, v.suffix)
+                                        if v.flags:
+                                            s += ' %s' % v.flags
+                                        d[v.name] = s
+                        except Exception:
+                            logger.warning('Unable to read legacy script '
+                                           'metadata, so cannot generate '
+                                           'scripts')
+                    else:
+                        try:
+                            with zf.open(metadata_name) as bwf:
+                                wf = wrapper(bwf)
+                                commands = json.load(wf).get('extensions')
+                                if commands:
+                                    commands = commands.get('python.commands')
+                        except Exception:
+                            logger.warning('Unable to read JSON metadata, so '
+                                           'cannot generate scripts')
+                    if commands:
+                        console_scripts = commands.get('wrap_console', {})
+                        gui_scripts = commands.get('wrap_gui', {})
+                        if console_scripts or gui_scripts:
+                            script_dir = paths.get('scripts', '')
+                            if not os.path.isdir(script_dir):
+                                raise ValueError('Valid script path not '
+                                                 'specified')
+                            maker.target_dir = script_dir
+                            for k, v in console_scripts.items():
+                                script = '%s = %s' % (k, v)
+                                filenames = maker.make(script)
+                                fileop.set_executable_mode(filenames)
+
+                            if gui_scripts:
+                                options = {'gui': True }
+                                for k, v in gui_scripts.items():
+                                    script = '%s = %s' % (k, v)
+                                    filenames = maker.make(script, options)
+                                    fileop.set_executable_mode(filenames)
+
+                    p = os.path.join(libdir, info_dir)
+                    dist = InstalledDistribution(p)
+
+                    # Write SHARED
+                    paths = dict(paths)     # don't change passed in dict
+                    del paths['purelib']
+                    del paths['platlib']
+                    paths['lib'] = libdir
+                    p = dist.write_shared_locations(paths, dry_run)
+                    if p:
+                        outfiles.append(p)
+
+                    # Write RECORD
+                    dist.write_installed_files(outfiles, paths['prefix'],
+                                               dry_run)
+                return dist
+            except Exception:  # pragma: no cover
+                logger.exception('installation failed.')
+                fileop.rollback()
+                raise
+            finally:
+                shutil.rmtree(workdir)
+
+    def _get_dylib_cache(self):
+        global cache
+        if cache is None:
+            # Use native string to avoid issues on 2.x: see Python #20140.
+            base = os.path.join(get_cache_base(), str('dylib-cache'),
+                                sys.version[:3])
+            cache = Cache(base)
+        return cache
+
+    def _get_extensions(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        arcname = posixpath.join(info_dir, 'EXTENSIONS')
+        wrapper = codecs.getreader('utf-8')
+        result = []
+        with ZipFile(pathname, 'r') as zf:
+            try:
+                with zf.open(arcname) as bf:
+                    wf = wrapper(bf)
+                    extensions = json.load(wf)
+                    cache = self._get_dylib_cache()
+                    prefix = cache.prefix_to_dir(pathname)
+                    cache_base = os.path.join(cache.base, prefix)
+                    if not os.path.isdir(cache_base):
+                        os.makedirs(cache_base)
+                    for name, relpath in extensions.items():
+                        dest = os.path.join(cache_base, convert_path(relpath))
+                        if not os.path.exists(dest):
+                            extract = True
+                        else:
+                            file_time = os.stat(dest).st_mtime
+                            file_time = datetime.datetime.fromtimestamp(file_time)
+                            info = zf.getinfo(relpath)
+                            wheel_time = datetime.datetime(*info.date_time)
+                            extract = wheel_time > file_time
+                        if extract:
+                            zf.extract(relpath, cache_base)
+                        result.append((name, dest))
+            except KeyError:
+                pass
+        return result
+
+    def is_compatible(self):
+        """
+        Determine if a wheel is compatible with the running system.
+        """
+        return is_compatible(self)
+
+    def is_mountable(self):
+        """
+        Determine if a wheel is asserted as mountable by its metadata.
+        """
+        return True # for now - metadata details TBD
+
+    def mount(self, append=False):
+        pathname = os.path.abspath(os.path.join(self.dirname, self.filename))
+        if not self.is_compatible():
+            msg = 'Wheel %s not compatible with this Python.' % pathname
+            raise DistlibException(msg)
+        if not self.is_mountable():
+            msg = 'Wheel %s is marked as not mountable.' % pathname
+            raise DistlibException(msg)
+        if pathname in sys.path:
+            logger.debug('%s already in path', pathname)
+        else:
+            if append:
+                sys.path.append(pathname)
+            else:
+                sys.path.insert(0, pathname)
+            extensions = self._get_extensions()
+            if extensions:
+                if _hook not in sys.meta_path:
+                    sys.meta_path.append(_hook)
+                _hook.add(pathname, extensions)
+
+    def unmount(self):
+        pathname = os.path.abspath(os.path.join(self.dirname, self.filename))
+        if pathname not in sys.path:
+            logger.debug('%s not in path', pathname)
+        else:
+            sys.path.remove(pathname)
+            if pathname in _hook.impure_wheels:
+                _hook.remove(pathname)
+            if not _hook.impure_wheels:
+                if _hook in sys.meta_path:
+                    sys.meta_path.remove(_hook)
+
+    def verify(self):
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        data_dir = '%s.data' % name_ver
+        info_dir = '%s.dist-info' % name_ver
+
+        metadata_name = posixpath.join(info_dir, METADATA_FILENAME)
+        wheel_metadata_name = posixpath.join(info_dir, 'WHEEL')
+        record_name = posixpath.join(info_dir, 'RECORD')
+
+        wrapper = codecs.getreader('utf-8')
+
+        with ZipFile(pathname, 'r') as zf:
+            with zf.open(wheel_metadata_name) as bwf:
+                wf = wrapper(bwf)
+                message = message_from_file(wf)
+            wv = message['Wheel-Version'].split('.', 1)
+            file_version = tuple([int(i) for i in wv])
+            # TODO version verification
+
+            records = {}
+            with zf.open(record_name) as bf:
+                with CSVReader(stream=bf) as reader:
+                    for row in reader:
+                        p = row[0]
+                        records[p] = row
+
+            for zinfo in zf.infolist():
+                arcname = zinfo.filename
+                if isinstance(arcname, text_type):
+                    u_arcname = arcname
+                else:
+                    u_arcname = arcname.decode('utf-8')
+                if '..' in u_arcname:
+                    raise DistlibException('invalid entry in '
+                                           'wheel: %r' % u_arcname)
+
+                # The signature file won't be in RECORD,
+                # and we  don't currently don't do anything with it
+                if u_arcname.endswith('/RECORD.jws'):
+                    continue
+                row = records[u_arcname]
+                if row[2] and str(zinfo.file_size) != row[2]:
+                    raise DistlibException('size mismatch for '
+                                           '%s' % u_arcname)
+                if row[1]:
+                    kind, value = row[1].split('=', 1)
+                    with zf.open(arcname) as bf:
+                        data = bf.read()
+                    _, digest = self.get_hash(data, kind)
+                    if digest != value:
+                        raise DistlibException('digest mismatch for '
+                                               '%s' % arcname)
+
+    def update(self, modifier, dest_dir=None, **kwargs):
+        """
+        Update the contents of a wheel in a generic way. The modifier should
+        be a callable which expects a dictionary argument: its keys are
+        archive-entry paths, and its values are absolute filesystem paths
+        where the contents the corresponding archive entries can be found. The
+        modifier is free to change the contents of the files pointed to, add
+        new entries and remove entries, before returning. This method will
+        extract the entire contents of the wheel to a temporary location, call
+        the modifier, and then use the passed (and possibly updated)
+        dictionary to write a new wheel. If ``dest_dir`` is specified, the new
+        wheel is written there -- otherwise, the original wheel is overwritten.
+
+        The modifier should return True if it updated the wheel, else False.
+        This method returns the same value the modifier returns.
+        """
+
+        def get_version(path_map, info_dir):
+            version = path = None
+            key = '%s/%s' % (info_dir, METADATA_FILENAME)
+            if key not in path_map:
+                key = '%s/PKG-INFO' % info_dir
+            if key in path_map:
+                path = path_map[key]
+                version = Metadata(path=path).version
+            return version, path
+
+        def update_version(version, path):
+            updated = None
+            try:
+                v = NormalizedVersion(version)
+                i = version.find('-')
+                if i < 0:
+                    updated = '%s+1' % version
+                else:
+                    parts = [int(s) for s in version[i + 1:].split('.')]
+                    parts[-1] += 1
+                    updated = '%s+%s' % (version[:i],
+                                         '.'.join(str(i) for i in parts))
+            except UnsupportedVersionError:
+                logger.debug('Cannot update non-compliant (PEP-440) '
+                             'version %r', version)
+            if updated:
+                md = Metadata(path=path)
+                md.version = updated
+                legacy = not path.endswith(METADATA_FILENAME)
+                md.write(path=path, legacy=legacy)
+                logger.debug('Version updated from %r to %r', version,
+                             updated)
+
+        pathname = os.path.join(self.dirname, self.filename)
+        name_ver = '%s-%s' % (self.name, self.version)
+        info_dir = '%s.dist-info' % name_ver
+        record_name = posixpath.join(info_dir, 'RECORD')
+        with tempdir() as workdir:
+            with ZipFile(pathname, 'r') as zf:
+                path_map = {}
+                for zinfo in zf.infolist():
+                    arcname = zinfo.filename
+                    if isinstance(arcname, text_type):
+                        u_arcname = arcname
+                    else:
+                        u_arcname = arcname.decode('utf-8')
+                    if u_arcname == record_name:
+                        continue
+                    if '..' in u_arcname:
+                        raise DistlibException('invalid entry in '
+                                               'wheel: %r' % u_arcname)
+                    zf.extract(zinfo, workdir)
+                    path = os.path.join(workdir, convert_path(u_arcname))
+                    path_map[u_arcname] = path
+
+            # Remember the version.
+            original_version, _ = get_version(path_map, info_dir)
+            # Files extracted. Call the modifier.
+            modified = modifier(path_map, **kwargs)
+            if modified:
+                # Something changed - need to build a new wheel.
+                current_version, path = get_version(path_map, info_dir)
+                if current_version and (current_version == original_version):
+                    # Add or update local version to signify changes.
+                    update_version(current_version, path)
+                # Decide where the new wheel goes.
+                if dest_dir is None:
+                    fd, newpath = tempfile.mkstemp(suffix='.whl',
+                                                   prefix='wheel-update-',
+                                                   dir=workdir)
+                    os.close(fd)
+                else:
+                    if not os.path.isdir(dest_dir):
+                        raise DistlibException('Not a directory: %r' % dest_dir)
+                    newpath = os.path.join(dest_dir, self.filename)
+                archive_paths = list(path_map.items())
+                distinfo = os.path.join(workdir, info_dir)
+                info = distinfo, info_dir
+                self.write_records(info, workdir, archive_paths)
+                self.build_zip(newpath, archive_paths)
+                if dest_dir is None:
+                    shutil.copyfile(newpath, pathname)
+        return modified
+
+def compatible_tags():
+    """
+    Return (pyver, abi, arch) tuples compatible with this Python.
+    """
+    versions = [VER_SUFFIX]
+    major = VER_SUFFIX[0]
+    for minor in range(sys.version_info[1] - 1, - 1, -1):
+        versions.append(''.join([major, str(minor)]))
+
+    abis = []
+    for suffix, _, _ in imp.get_suffixes():
+        if suffix.startswith('.abi'):
+            abis.append(suffix.split('.', 2)[1])
+    abis.sort()
+    if ABI != 'none':
+        abis.insert(0, ABI)
+    abis.append('none')
+    result = []
+
+    arches = [ARCH]
+    if sys.platform == 'darwin':
+        m = re.match('(\w+)_(\d+)_(\d+)_(\w+)$', ARCH)
+        if m:
+            name, major, minor, arch = m.groups()
+            minor = int(minor)
+            matches = [arch]
+            if arch in ('i386', 'ppc'):
+                matches.append('fat')
+            if arch in ('i386', 'ppc', 'x86_64'):
+                matches.append('fat3')
+            if arch in ('ppc64', 'x86_64'):
+                matches.append('fat64')
+            if arch in ('i386', 'x86_64'):
+                matches.append('intel')
+            if arch in ('i386', 'x86_64', 'intel', 'ppc', 'ppc64'):
+                matches.append('universal')
+            while minor >= 0:
+                for match in matches:
+                    s = '%s_%s_%s_%s' % (name, major, minor, match)
+                    if s != ARCH:   # already there
+                        arches.append(s)
+                minor -= 1
+
+    # Most specific - our Python version, ABI and arch
+    for abi in abis:
+        for arch in arches:
+            result.append((''.join((IMP_PREFIX, versions[0])), abi, arch))
+
+    # where no ABI / arch dependency, but IMP_PREFIX dependency
+    for i, version in enumerate(versions):
+        result.append((''.join((IMP_PREFIX, version)), 'none', 'any'))
+        if i == 0:
+            result.append((''.join((IMP_PREFIX, version[0])), 'none', 'any'))
+
+    # no IMP_PREFIX, ABI or arch dependency
+    for i, version in enumerate(versions):
+        result.append((''.join(('py', version)), 'none', 'any'))
+        if i == 0:
+            result.append((''.join(('py', version[0])), 'none', 'any'))
+    return set(result)
+
+
+COMPATIBLE_TAGS = compatible_tags()
+
+del compatible_tags
+
+
+def is_compatible(wheel, tags=None):
+    if not isinstance(wheel, Wheel):
+        wheel = Wheel(wheel)    # assume it's a filename
+    result = False
+    if tags is None:
+        tags = COMPATIBLE_TAGS
+    for ver, abi, arch in tags:
+        if ver in wheel.pyver and abi in wheel.abi and arch in wheel.arch:
+            result = True
+            break
+    return result
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/distro.py b/venv1/lib/python3.5/site-packages/pip/_vendor/distro.py
new file mode 100644
index 0000000..9e7daad
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/distro.py
@@ -0,0 +1,1081 @@
+# Copyright 2015,2016 Nir Cohen
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""
+The ``distro`` package (``distro`` stands for Linux Distribution) provides
+information about the Linux distribution it runs on, such as a reliable
+machine-readable distro ID, or version information.
+
+It is a renewed alternative implementation for Python's original
+:py:func:`platform.linux_distribution` function, but it provides much more
+functionality. An alternative implementation became necessary because Python
+3.5 deprecated this function, and Python 3.7 is expected to remove it
+altogether. Its predecessor function :py:func:`platform.dist` was already
+deprecated since Python 2.6 and is also expected to be removed in Python 3.7.
+Still, there are many cases in which access to Linux distribution information
+is needed. See `Python issue 1322 <https://bugs.python.org/issue1322>`_ for
+more information.
+"""
+
+import os
+import re
+import sys
+import json
+import shlex
+import logging
+import subprocess
+
+
+if not sys.platform.startswith('linux'):
+    raise ImportError('Unsupported platform: {0}'.format(sys.platform))
+
+_UNIXCONFDIR = '/etc'
+_OS_RELEASE_BASENAME = 'os-release'
+
+#: Translation table for normalizing the "ID" attribute defined in os-release
+#: files, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as defined in the os-release file, translated to lower case,
+#:   with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_OS_ID = {}
+
+#: Translation table for normalizing the "Distributor ID" attribute returned by
+#: the lsb_release command, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as returned by the lsb_release command, translated to lower
+#:   case, with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_LSB_ID = {
+    'enterpriseenterprise': 'oracle',  # Oracle Enterprise Linux
+    'redhatenterpriseworkstation': 'rhel',  # RHEL 6.7
+}
+
+#: Translation table for normalizing the distro ID derived from the file name
+#: of distro release files, for use by the :func:`distro.id` method.
+#:
+#: * Key: Value as derived from the file name of a distro release file,
+#:   translated to lower case, with blanks translated to underscores.
+#:
+#: * Value: Normalized value.
+NORMALIZED_DISTRO_ID = {
+    'redhat': 'rhel',  # RHEL 6.x, 7.x
+}
+
+# Pattern for content of distro release file (reversed)
+_DISTRO_RELEASE_CONTENT_REVERSED_PATTERN = re.compile(
+    r'(?:[^)]*\)(.*)\()? *(?:STL )?([\d.+\-a-z]*\d) *(?:esaeler *)?(.+)')
+
+# Pattern for base file name of distro release file
+_DISTRO_RELEASE_BASENAME_PATTERN = re.compile(
+    r'(\w+)[-_](release|version)$')
+
+# Base file names to be ignored when searching for distro release file
+_DISTRO_RELEASE_IGNORE_BASENAMES = (
+    'debian_version',
+    'lsb-release',
+    'oem-release',
+    _OS_RELEASE_BASENAME,
+    'system-release'
+)
+
+
+def linux_distribution(full_distribution_name=True):
+    """
+    Return information about the current Linux distribution as a tuple
+    ``(id_name, version, codename)`` with items as follows:
+
+    * ``id_name``:  If *full_distribution_name* is false, the result of
+      :func:`distro.id`. Otherwise, the result of :func:`distro.name`.
+
+    * ``version``:  The result of :func:`distro.version`.
+
+    * ``codename``:  The result of :func:`distro.codename`.
+
+    The interface of this function is compatible with the original
+    :py:func:`platform.linux_distribution` function, supporting a subset of
+    its parameters.
+
+    The data it returns may not exactly be the same, because it uses more data
+    sources than the original function, and that may lead to different data if
+    the Linux distribution is not consistent across multiple data sources it
+    provides (there are indeed such distributions ...).
+
+    Another reason for differences is the fact that the :func:`distro.id`
+    method normalizes the distro ID string to a reliable machine-readable value
+    for a number of popular Linux distributions.
+    """
+    return _distro.linux_distribution(full_distribution_name)
+
+
+def id():
+    """
+    Return the distro ID of the current Linux distribution, as a
+    machine-readable string.
+
+    For a number of Linux distributions, the returned distro ID value is
+    *reliable*, in the sense that it is documented and that it does not change
+    across releases of the distribution.
+
+    This package maintains the following reliable distro ID values:
+
+    ==============  =========================================
+    Distro ID       Distribution
+    ==============  =========================================
+    "ubuntu"        Ubuntu
+    "debian"        Debian
+    "rhel"          RedHat Enterprise Linux
+    "centos"        CentOS
+    "fedora"        Fedora
+    "sles"          SUSE Linux Enterprise Server
+    "opensuse"      openSUSE
+    "amazon"        Amazon Linux
+    "arch"          Arch Linux
+    "cloudlinux"    CloudLinux OS
+    "exherbo"       Exherbo Linux
+    "gentoo"        GenToo Linux
+    "ibm_powerkvm"  IBM PowerKVM
+    "kvmibm"        KVM for IBM z Systems
+    "linuxmint"     Linux Mint
+    "mageia"        Mageia
+    "mandriva"      Mandriva Linux
+    "parallels"     Parallels
+    "pidora"        Pidora
+    "raspbian"      Raspbian
+    "oracle"        Oracle Linux (and Oracle Enterprise Linux)
+    "scientific"    Scientific Linux
+    "slackware"     Slackware
+    "xenserver"     XenServer
+    ==============  =========================================
+
+    If you have a need to get distros for reliable IDs added into this set,
+    or if you find that the :func:`distro.id` function returns a different
+    distro ID for one of the listed distros, please create an issue in the
+    `distro issue tracker`_.
+
+    **Lookup hierarchy and transformations:**
+
+    First, the ID is obtained from the following sources, in the specified
+    order. The first available and non-empty value is used:
+
+    * the value of the "ID" attribute of the os-release file,
+
+    * the value of the "Distributor ID" attribute returned by the lsb_release
+      command,
+
+    * the first part of the file name of the distro release file,
+
+    The so determined ID value then passes the following transformations,
+    before it is returned by this method:
+
+    * it is translated to lower case,
+
+    * blanks (which should not be there anyway) are translated to underscores,
+
+    * a normalization of the ID is performed, based upon
+      `normalization tables`_. The purpose of this normalization is to ensure
+      that the ID is as reliable as possible, even across incompatible changes
+      in the Linux distributions. A common reason for an incompatible change is
+      the addition of an os-release file, or the addition of the lsb_release
+      command, with ID values that differ from what was previously determined
+      from the distro release file name.
+    """
+    return _distro.id()
+
+
+def name(pretty=False):
+    """
+    Return the name of the current Linux distribution, as a human-readable
+    string.
+
+    If *pretty* is false, the name is returned without version or codename.
+    (e.g. "CentOS Linux")
+
+    If *pretty* is true, the version and codename are appended.
+    (e.g. "CentOS Linux 7.1.1503 (Core)")
+
+    **Lookup hierarchy:**
+
+    The name is obtained from the following sources, in the specified order.
+    The first available and non-empty value is used:
+
+    * If *pretty* is false:
+
+      - the value of the "NAME" attribute of the os-release file,
+
+      - the value of the "Distributor ID" attribute returned by the lsb_release
+        command,
+
+      - the value of the "<name>" field of the distro release file.
+
+    * If *pretty* is true:
+
+      - the value of the "PRETTY_NAME" attribute of the os-release file,
+
+      - the value of the "Description" attribute returned by the lsb_release
+        command,
+
+      - the value of the "<name>" field of the distro release file, appended
+        with the value of the pretty version ("<version_id>" and "<codename>"
+        fields) of the distro release file, if available.
+    """
+    return _distro.name(pretty)
+
+
+def version(pretty=False, best=False):
+    """
+    Return the version of the current Linux distribution, as a human-readable
+    string.
+
+    If *pretty* is false, the version is returned without codename (e.g.
+    "7.0").
+
+    If *pretty* is true, the codename in parenthesis is appended, if the
+    codename is non-empty (e.g. "7.0 (Maipo)").
+
+    Some distributions provide version numbers with different precisions in
+    the different sources of distribution information. Examining the different
+    sources in a fixed priority order does not always yield the most precise
+    version (e.g. for Debian 8.2, or CentOS 7.1).
+
+    The *best* parameter can be used to control the approach for the returned
+    version:
+
+    If *best* is false, the first non-empty version number in priority order of
+    the examined sources is returned.
+
+    If *best* is true, the most precise version number out of all examined
+    sources is returned.
+
+    **Lookup hierarchy:**
+
+    In all cases, the version number is obtained from the following sources.
+    If *best* is false, this order represents the priority order:
+
+    * the value of the "VERSION_ID" attribute of the os-release file,
+    * the value of the "Release" attribute returned by the lsb_release
+      command,
+    * the version number parsed from the "<version_id>" field of the first line
+      of the distro release file,
+    * the version number parsed from the "PRETTY_NAME" attribute of the
+      os-release file, if it follows the format of the distro release files.
+    * the version number parsed from the "Description" attribute returned by
+      the lsb_release command, if it follows the format of the distro release
+      files.
+    """
+    return _distro.version(pretty, best)
+
+
+def version_parts(best=False):
+    """
+    Return the version of the current Linux distribution as a tuple
+    ``(major, minor, build_number)`` with items as follows:
+
+    * ``major``:  The result of :func:`distro.major_version`.
+
+    * ``minor``:  The result of :func:`distro.minor_version`.
+
+    * ``build_number``:  The result of :func:`distro.build_number`.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.version_parts(best)
+
+
+def major_version(best=False):
+    """
+    Return the major version of the current Linux distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The major version is the first
+    part of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.major_version(best)
+
+
+def minor_version(best=False):
+    """
+    Return the minor version of the current Linux distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The minor version is the second
+    part of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.minor_version(best)
+
+
+def build_number(best=False):
+    """
+    Return the build number of the current Linux distribution, as a string,
+    if provided.
+    Otherwise, the empty string is returned. The build number is the third part
+    of the dot-separated version string.
+
+    For a description of the *best* parameter, see the :func:`distro.version`
+    method.
+    """
+    return _distro.build_number(best)
+
+
+def like():
+    """
+    Return a space-separated list of distro IDs of distributions that are
+    closely related to the current Linux distribution in regards to packaging
+    and programming interfaces, for example distributions the current
+    distribution is a derivative from.
+
+    **Lookup hierarchy:**
+
+    This information item is only provided by the os-release file.
+    For details, see the description of the "ID_LIKE" attribute in the
+    `os-release man page
+    <http://www.freedesktop.org/software/systemd/man/os-release.html>`_.
+    """
+    return _distro.like()
+
+
+def codename():
+    """
+    Return the codename for the release of the current Linux distribution,
+    as a string.
+
+    If the distribution does not have a codename, an empty string is returned.
+
+    Note that the returned codename is not always really a codename. For
+    example, openSUSE returns "x86_64". This function does not handle such
+    cases in any special way and just returns the string it finds, if any.
+
+    **Lookup hierarchy:**
+
+    * the codename within the "VERSION" attribute of the os-release file, if
+      provided,
+
+    * the value of the "Codename" attribute returned by the lsb_release
+      command,
+
+    * the value of the "<codename>" field of the distro release file.
+    """
+    return _distro.codename()
+
+
+def info(pretty=False, best=False):
+    """
+    Return certain machine-readable information items about the current Linux
+    distribution in a dictionary, as shown in the following example:
+
+    .. sourcecode:: python
+
+        {
+            'id': 'rhel',
+            'version': '7.0',
+            'version_parts': {
+                'major': '7',
+                'minor': '0',
+                'build_number': ''
+            },
+            'like': 'fedora',
+            'codename': 'Maipo'
+        }
+
+    The dictionary structure and keys are always the same, regardless of which
+    information items are available in the underlying data sources. The values
+    for the various keys are as follows:
+
+    * ``id``:  The result of :func:`distro.id`.
+
+    * ``version``:  The result of :func:`distro.version`.
+
+    * ``version_parts -> major``:  The result of :func:`distro.major_version`.
+
+    * ``version_parts -> minor``:  The result of :func:`distro.minor_version`.
+
+    * ``version_parts -> build_number``:  The result of
+      :func:`distro.build_number`.
+
+    * ``like``:  The result of :func:`distro.like`.
+
+    * ``codename``:  The result of :func:`distro.codename`.
+
+    For a description of the *pretty* and *best* parameters, see the
+    :func:`distro.version` method.
+    """
+    return _distro.info(pretty, best)
+
+
+def os_release_info():
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the os-release file data source of the current Linux distribution.
+
+    See `os-release file`_ for details about these information items.
+    """
+    return _distro.os_release_info()
+
+
+def lsb_release_info():
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the lsb_release command data source of the current Linux distribution.
+
+    See `lsb_release command output`_ for details about these information
+    items.
+    """
+    return _distro.lsb_release_info()
+
+
+def distro_release_info():
+    """
+    Return a dictionary containing key-value pairs for the information items
+    from the distro release file data source of the current Linux distribution.
+
+    See `distro release file`_ for details about these information items.
+    """
+    return _distro.distro_release_info()
+
+
+def os_release_attr(attribute):
+    """
+    Return a single named information item from the os-release file data source
+    of the current Linux distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `os-release file`_ for details about these information items.
+    """
+    return _distro.os_release_attr(attribute)
+
+
+def lsb_release_attr(attribute):
+    """
+    Return a single named information item from the lsb_release command output
+    data source of the current Linux distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `lsb_release command output`_ for details about these information
+    items.
+    """
+    return _distro.lsb_release_attr(attribute)
+
+
+def distro_release_attr(attribute):
+    """
+    Return a single named information item from the distro release file
+    data source of the current Linux distribution.
+
+    Parameters:
+
+    * ``attribute`` (string): Key of the information item.
+
+    Returns:
+
+    * (string): Value of the information item, if the item exists.
+      The empty string, if the item does not exist.
+
+    See `distro release file`_ for details about these information items.
+    """
+    return _distro.distro_release_attr(attribute)
+
+
+class LinuxDistribution(object):
+    """
+    Provides information about a Linux distribution.
+
+    This package creates a private module-global instance of this class with
+    default initialization arguments, that is used by the
+    `consolidated accessor functions`_ and `single source accessor functions`_.
+    By using default initialization arguments, that module-global instance
+    returns data about the current Linux distribution (i.e. the distro this
+    package runs on).
+
+    Normally, it is not necessary to create additional instances of this class.
+    However, in situations where control is needed over the exact data sources
+    that are used, instances of this class can be created with a specific
+    distro release file, or a specific os-release file, or without invoking the
+    lsb_release command.
+    """
+
+    def __init__(self,
+                 include_lsb=True,
+                 os_release_file='',
+                 distro_release_file=''):
+        """
+        The initialization method of this class gathers information from the
+        available data sources, and stores that in private instance attributes.
+        Subsequent access to the information items uses these private instance
+        attributes, so that the data sources are read only once.
+
+        Parameters:
+
+        * ``include_lsb`` (bool): Controls whether the
+          `lsb_release command output`_ is included as a data source.
+
+          If the lsb_release command is not available in the program execution
+          path, the data source for the lsb_release command will be empty.
+
+        * ``os_release_file`` (string): The path name of the
+          `os-release file`_ that is to be used as a data source.
+
+          An empty string (the default) will cause the default path name to
+          be used (see `os-release file`_ for details).
+
+          If the specified or defaulted os-release file does not exist, the
+          data source for the os-release file will be empty.
+
+        * ``distro_release_file`` (string): The path name of the
+          `distro release file`_ that is to be used as a data source.
+
+          An empty string (the default) will cause a default search algorithm
+          to be used (see `distro release file`_ for details).
+
+          If the specified distro release file does not exist, or if no default
+          distro release file can be found, the data source for the distro
+          release file will be empty.
+
+        Public instance attributes:
+
+        * ``os_release_file`` (string): The path name of the
+          `os-release file`_ that is actually used as a data source. The
+          empty string if no distro release file is used as a data source.
+
+        * ``distro_release_file`` (string): The path name of the
+          `distro release file`_ that is actually used as a data source. The
+          empty string if no distro release file is used as a data source.
+
+        Raises:
+
+        * :py:exc:`IOError`: Some I/O issue with an os-release file or distro
+          release file.
+
+        * :py:exc:`subprocess.CalledProcessError`: The lsb_release command had
+          some issue (other than not being available in the program execution
+          path).
+
+        * :py:exc:`UnicodeError`: A data source has unexpected characters or
+          uses an unexpected encoding.
+        """
+        self.os_release_file = os_release_file or \
+            os.path.join(_UNIXCONFDIR, _OS_RELEASE_BASENAME)
+        self.distro_release_file = distro_release_file or ''  # updated later
+        self._os_release_info = self._get_os_release_info()
+        self._lsb_release_info = self._get_lsb_release_info() \
+            if include_lsb else {}
+        self._distro_release_info = self._get_distro_release_info()
+
+    def __repr__(self):
+        """Return repr of all info
+        """
+        return \
+            "LinuxDistribution(" \
+            "os_release_file={0!r}, " \
+            "distro_release_file={1!r}, " \
+            "_os_release_info={2!r}, " \
+            "_lsb_release_info={3!r}, " \
+            "_distro_release_info={4!r})".format(
+                self.os_release_file,
+                self.distro_release_file,
+                self._os_release_info,
+                self._lsb_release_info,
+                self._distro_release_info)
+
+    def linux_distribution(self, full_distribution_name=True):
+        """
+        Return information about the Linux distribution that is compatible
+        with Python's :func:`platform.linux_distribution`, supporting a subset
+        of its parameters.
+
+        For details, see :func:`distro.linux_distribution`.
+        """
+        return (
+            self.name() if full_distribution_name else self.id(),
+            self.version(),
+            self.codename()
+        )
+
+    def id(self):
+        """Return the distro ID of the Linux distribution, as a string.
+
+        For details, see :func:`distro.id`.
+        """
+        def normalize(distro_id, table):
+            distro_id = distro_id.lower().replace(' ', '_')
+            return table.get(distro_id, distro_id)
+
+        distro_id = self.os_release_attr('id')
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_OS_ID)
+
+        distro_id = self.lsb_release_attr('distributor_id')
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_LSB_ID)
+
+        distro_id = self.distro_release_attr('id')
+        if distro_id:
+            return normalize(distro_id, NORMALIZED_DISTRO_ID)
+
+        return ''
+
+    def name(self, pretty=False):
+        """
+        Return the name of the Linux distribution, as a string.
+
+        For details, see :func:`distro.name`.
+        """
+        name = self.os_release_attr('name') \
+            or self.lsb_release_attr('distributor_id') \
+            or self.distro_release_attr('name')
+        if pretty:
+            name = self.os_release_attr('pretty_name') \
+                or self.lsb_release_attr('description')
+            if not name:
+                name = self.distro_release_attr('name')
+                version = self.version(pretty=True)
+                if version:
+                    name = name + ' ' + version
+        return name or ''
+
+    def version(self, pretty=False, best=False):
+        """
+        Return the version of the Linux distribution, as a string.
+
+        For details, see :func:`distro.version`.
+        """
+        versions = [
+            self.os_release_attr('version_id'),
+            self.lsb_release_attr('release'),
+            self.distro_release_attr('version_id'),
+            self._parse_distro_release_content(
+                self.os_release_attr('pretty_name')).get('version_id', ''),
+            self._parse_distro_release_content(
+                self.lsb_release_attr('description')).get('version_id', '')
+        ]
+        version = ''
+        if best:
+            # This algorithm uses the last version in priority order that has
+            # the best precision. If the versions are not in conflict, that
+            # does not matter; otherwise, using the last one instead of the
+            # first one might be considered a surprise.
+            for v in versions:
+                if v.count(".") > version.count(".") or version == '':
+                    version = v
+        else:
+            for v in versions:
+                if v != '':
+                    version = v
+                    break
+        if pretty and version and self.codename():
+            version = u'{0} ({1})'.format(version, self.codename())
+        return version
+
+    def version_parts(self, best=False):
+        """
+        Return the version of the Linux distribution, as a tuple of version
+        numbers.
+
+        For details, see :func:`distro.version_parts`.
+        """
+        version_str = self.version(best=best)
+        if version_str:
+            version_regex = re.compile(r'(\d+)\.?(\d+)?\.?(\d+)?')
+            matches = version_regex.match(version_str)
+            if matches:
+                major, minor, build_number = matches.groups()
+                return major, minor or '', build_number or ''
+        return '', '', ''
+
+    def major_version(self, best=False):
+        """
+        Return the major version number of the current distribution.
+
+        For details, see :func:`distro.major_version`.
+        """
+        return self.version_parts(best)[0]
+
+    def minor_version(self, best=False):
+        """
+        Return the minor version number of the Linux distribution.
+
+        For details, see :func:`distro.minor_version`.
+        """
+        return self.version_parts(best)[1]
+
+    def build_number(self, best=False):
+        """
+        Return the build number of the Linux distribution.
+
+        For details, see :func:`distro.build_number`.
+        """
+        return self.version_parts(best)[2]
+
+    def like(self):
+        """
+        Return the IDs of distributions that are like the Linux distribution.
+
+        For details, see :func:`distro.like`.
+        """
+        return self.os_release_attr('id_like') or ''
+
+    def codename(self):
+        """
+        Return the codename of the Linux distribution.
+
+        For details, see :func:`distro.codename`.
+        """
+        return self.os_release_attr('codename') \
+            or self.lsb_release_attr('codename') \
+            or self.distro_release_attr('codename') \
+            or ''
+
+    def info(self, pretty=False, best=False):
+        """
+        Return certain machine-readable information about the Linux
+        distribution.
+
+        For details, see :func:`distro.info`.
+        """
+        return dict(
+            id=self.id(),
+            version=self.version(pretty, best),
+            version_parts=dict(
+                major=self.major_version(best),
+                minor=self.minor_version(best),
+                build_number=self.build_number(best)
+            ),
+            like=self.like(),
+            codename=self.codename(),
+        )
+
+    def os_release_info(self):
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the os-release file data source of the Linux distribution.
+
+        For details, see :func:`distro.os_release_info`.
+        """
+        return self._os_release_info
+
+    def lsb_release_info(self):
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the lsb_release command data source of the Linux
+        distribution.
+
+        For details, see :func:`distro.lsb_release_info`.
+        """
+        return self._lsb_release_info
+
+    def distro_release_info(self):
+        """
+        Return a dictionary containing key-value pairs for the information
+        items from the distro release file data source of the Linux
+        distribution.
+
+        For details, see :func:`distro.distro_release_info`.
+        """
+        return self._distro_release_info
+
+    def os_release_attr(self, attribute):
+        """
+        Return a single named information item from the os-release file data
+        source of the Linux distribution.
+
+        For details, see :func:`distro.os_release_attr`.
+        """
+        return self._os_release_info.get(attribute, '')
+
+    def lsb_release_attr(self, attribute):
+        """
+        Return a single named information item from the lsb_release command
+        output data source of the Linux distribution.
+
+        For details, see :func:`distro.lsb_release_attr`.
+        """
+        return self._lsb_release_info.get(attribute, '')
+
+    def distro_release_attr(self, attribute):
+        """
+        Return a single named information item from the distro release file
+        data source of the Linux distribution.
+
+        For details, see :func:`distro.distro_release_attr`.
+        """
+        return self._distro_release_info.get(attribute, '')
+
+    def _get_os_release_info(self):
+        """
+        Get the information items from the specified os-release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if os.path.isfile(self.os_release_file):
+            with open(self.os_release_file) as release_file:
+                return self._parse_os_release_content(release_file)
+        return {}
+
+    @staticmethod
+    def _parse_os_release_content(lines):
+        """
+        Parse the lines of an os-release file.
+
+        Parameters:
+
+        * lines: Iterable through the lines in the os-release file.
+                 Each line must be a unicode string or a UTF-8 encoded byte
+                 string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        props = {}
+        lexer = shlex.shlex(lines, posix=True)
+        lexer.whitespace_split = True
+
+        # The shlex module defines its `wordchars` variable using literals,
+        # making it dependent on the encoding of the Python source file.
+        # In Python 2.6 and 2.7, the shlex source file is encoded in
+        # 'iso-8859-1', and the `wordchars` variable is defined as a byte
+        # string. This causes a UnicodeDecodeError to be raised when the
+        # parsed content is a unicode object. The following fix resolves that
+        # (... but it should be fixed in shlex...):
+        if sys.version_info[0] == 2 and isinstance(lexer.wordchars, bytes):
+            lexer.wordchars = lexer.wordchars.decode('iso-8859-1')
+
+        tokens = list(lexer)
+        for token in tokens:
+            # At this point, all shell-like parsing has been done (i.e.
+            # comments processed, quotes and backslash escape sequences
+            # processed, multi-line values assembled, trailing newlines
+            # stripped, etc.), so the tokens are now either:
+            # * variable assignments: var=value
+            # * commands or their arguments (not allowed in os-release)
+            if '=' in token:
+                k, v = token.split('=', 1)
+                if isinstance(v, bytes):
+                    v = v.decode('utf-8')
+                props[k.lower()] = v
+                if k == 'VERSION':
+                    # this handles cases in which the codename is in
+                    # the `(CODENAME)` (rhel, centos, fedora) format
+                    # or in the `, CODENAME` format (Ubuntu).
+                    codename = re.search(r'(\(\D+\))|,(\s+)?\D+', v)
+                    if codename:
+                        codename = codename.group()
+                        codename = codename.strip('()')
+                        codename = codename.strip(',')
+                        codename = codename.strip()
+                        # codename appears within paranthese.
+                        props['codename'] = codename
+                    else:
+                        props['codename'] = ''
+            else:
+                # Ignore any tokens that are not variable assignments
+                pass
+        return props
+
+    def _get_lsb_release_info(self):
+        """
+        Get the information items from the lsb_release command output.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        cmd = 'lsb_release -a'
+        process = subprocess.Popen(
+            cmd,
+            shell=True,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout, stderr = process.communicate()
+        stdout, stderr = stdout.decode('utf-8'), stderr.decode('utf-8')
+        code = process.returncode
+        if code == 0:
+            content = stdout.splitlines()
+            return self._parse_lsb_release_content(content)
+        elif code == 127:  # Command not found
+            return {}
+        else:
+            if sys.version_info[:2] >= (3, 5):
+                raise subprocess.CalledProcessError(code, cmd, stdout, stderr)
+            elif sys.version_info[:2] >= (2, 7):
+                raise subprocess.CalledProcessError(code, cmd, stdout)
+            elif sys.version_info[:2] == (2, 6):
+                raise subprocess.CalledProcessError(code, cmd)
+
+    @staticmethod
+    def _parse_lsb_release_content(lines):
+        """
+        Parse the output of the lsb_release command.
+
+        Parameters:
+
+        * lines: Iterable through the lines of the lsb_release output.
+                 Each line must be a unicode string or a UTF-8 encoded byte
+                 string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        props = {}
+        for line in lines:
+            line = line.decode('utf-8') if isinstance(line, bytes) else line
+            kv = line.strip('\n').split(':', 1)
+            if len(kv) != 2:
+                # Ignore lines without colon.
+                continue
+            k, v = kv
+            props.update({k.replace(' ', '_').lower(): v.strip()})
+        return props
+
+    def _get_distro_release_info(self):
+        """
+        Get the information items from the specified distro release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if self.distro_release_file:
+            # If it was specified, we use it and parse what we can, even if
+            # its file name or content does not match the expected pattern.
+            distro_info = self._parse_distro_release_file(
+                self.distro_release_file)
+            basename = os.path.basename(self.distro_release_file)
+            # The file name pattern for user-specified distro release files
+            # is somewhat more tolerant (compared to when searching for the
+            # file), because we want to use what was specified as best as
+            # possible.
+            match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
+            if match:
+                distro_info['id'] = match.group(1)
+            return distro_info
+        else:
+            basenames = os.listdir(_UNIXCONFDIR)
+            # We sort for repeatability in cases where there are multiple
+            # distro specific files; e.g. CentOS, Oracle, Enterprise all
+            # containing `redhat-release` on top of their own.
+            basenames.sort()
+            for basename in basenames:
+                if basename in _DISTRO_RELEASE_IGNORE_BASENAMES:
+                    continue
+                match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
+                if match:
+                    filepath = os.path.join(_UNIXCONFDIR, basename)
+                    distro_info = self._parse_distro_release_file(filepath)
+                    if 'name' in distro_info:
+                        # The name is always present if the pattern matches
+                        self.distro_release_file = filepath
+                        distro_info['id'] = match.group(1)
+                        return distro_info
+            return {}
+
+    def _parse_distro_release_file(self, filepath):
+        """
+        Parse a distro release file.
+
+        Parameters:
+
+        * filepath: Path name of the distro release file.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if os.path.isfile(filepath):
+            with open(filepath) as fp:
+                # Only parse the first line. For instance, on SLES there
+                # are multiple lines. We don't want them...
+                return self._parse_distro_release_content(fp.readline())
+        return {}
+
+    @staticmethod
+    def _parse_distro_release_content(line):
+        """
+        Parse a line from a distro release file.
+
+        Parameters:
+        * line: Line from the distro release file. Must be a unicode string
+                or a UTF-8 encoded byte string.
+
+        Returns:
+            A dictionary containing all information items.
+        """
+        if isinstance(line, bytes):
+            line = line.decode('utf-8')
+        matches = _DISTRO_RELEASE_CONTENT_REVERSED_PATTERN.match(
+            line.strip()[::-1])
+        distro_info = {}
+        if matches:
+            # regexp ensures non-None
+            distro_info['name'] = matches.group(3)[::-1]
+            if matches.group(2):
+                distro_info['version_id'] = matches.group(2)[::-1]
+            if matches.group(1):
+                distro_info['codename'] = matches.group(1)[::-1]
+        elif line:
+            distro_info['name'] = line.strip()
+        return distro_info
+
+
+_distro = LinuxDistribution()
+
+
+def main():
+    import argparse
+
+    logger = logging.getLogger(__name__)
+    logger.setLevel(logging.DEBUG)
+    logger.addHandler(logging.StreamHandler(sys.stdout))
+
+    parser = argparse.ArgumentParser(description="Linux distro info tool")
+    parser.add_argument(
+        '--json',
+        '-j',
+        help="Output in machine readable format",
+        action="store_true")
+    args = parser.parse_args()
+
+    if args.json:
+        logger.info(json.dumps(info(), indent=4, sort_keys=True))
+    else:
+        logger.info('Name: %s', name(pretty=True))
+        distribution_version = version(pretty=True)
+        if distribution_version:
+            logger.info('Version: %s', distribution_version)
+        distribution_codename = codename()
+        if distribution_codename:
+            logger.info('Codename: %s', distribution_codename)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/__init__.py
new file mode 100644
index 0000000..7427eb1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/__init__.py
@@ -0,0 +1,25 @@
+"""
+HTML parsing library based on the WHATWG "HTML5"
+specification. The parser is designed to be compatible with existing
+HTML found in the wild and implements well-defined error recovery that
+is largely compatible with modern desktop web browsers.
+
+Example usage:
+
+import html5lib
+f = open("my_document.html")
+tree = html5lib.parse(f)
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .html5parser import HTMLParser, parse, parseFragment
+from .treebuilders import getTreeBuilder
+from .treewalkers import getTreeWalker
+from .serializer import serialize
+
+__all__ = ["HTMLParser", "parse", "parseFragment", "getTreeBuilder",
+           "getTreeWalker", "serialize"]
+
+# this has to be at the top level, see how setup.py parses this
+__version__ = "1.0b10"
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_ihatexml.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_ihatexml.py
new file mode 100644
index 0000000..d6d1d6f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_ihatexml.py
@@ -0,0 +1,288 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+import warnings
+
+from .constants import DataLossWarning
+
+baseChar = """
+[#x0041-#x005A] | [#x0061-#x007A] | [#x00C0-#x00D6] | [#x00D8-#x00F6] |
+[#x00F8-#x00FF] | [#x0100-#x0131] | [#x0134-#x013E] | [#x0141-#x0148] |
+[#x014A-#x017E] | [#x0180-#x01C3] | [#x01CD-#x01F0] | [#x01F4-#x01F5] |
+[#x01FA-#x0217] | [#x0250-#x02A8] | [#x02BB-#x02C1] | #x0386 |
+[#x0388-#x038A] | #x038C | [#x038E-#x03A1] | [#x03A3-#x03CE] |
+[#x03D0-#x03D6] | #x03DA | #x03DC | #x03DE | #x03E0 | [#x03E2-#x03F3] |
+[#x0401-#x040C] | [#x040E-#x044F] | [#x0451-#x045C] | [#x045E-#x0481] |
+[#x0490-#x04C4] | [#x04C7-#x04C8] | [#x04CB-#x04CC] | [#x04D0-#x04EB] |
+[#x04EE-#x04F5] | [#x04F8-#x04F9] | [#x0531-#x0556] | #x0559 |
+[#x0561-#x0586] | [#x05D0-#x05EA] | [#x05F0-#x05F2] | [#x0621-#x063A] |
+[#x0641-#x064A] | [#x0671-#x06B7] | [#x06BA-#x06BE] | [#x06C0-#x06CE] |
+[#x06D0-#x06D3] | #x06D5 | [#x06E5-#x06E6] | [#x0905-#x0939] | #x093D |
+[#x0958-#x0961] | [#x0985-#x098C] | [#x098F-#x0990] | [#x0993-#x09A8] |
+[#x09AA-#x09B0] | #x09B2 | [#x09B6-#x09B9] | [#x09DC-#x09DD] |
+[#x09DF-#x09E1] | [#x09F0-#x09F1] | [#x0A05-#x0A0A] | [#x0A0F-#x0A10] |
+[#x0A13-#x0A28] | [#x0A2A-#x0A30] | [#x0A32-#x0A33] | [#x0A35-#x0A36] |
+[#x0A38-#x0A39] | [#x0A59-#x0A5C] | #x0A5E | [#x0A72-#x0A74] |
+[#x0A85-#x0A8B] | #x0A8D | [#x0A8F-#x0A91] | [#x0A93-#x0AA8] |
+[#x0AAA-#x0AB0] | [#x0AB2-#x0AB3] | [#x0AB5-#x0AB9] | #x0ABD | #x0AE0 |
+[#x0B05-#x0B0C] | [#x0B0F-#x0B10] | [#x0B13-#x0B28] | [#x0B2A-#x0B30] |
+[#x0B32-#x0B33] | [#x0B36-#x0B39] | #x0B3D | [#x0B5C-#x0B5D] |
+[#x0B5F-#x0B61] | [#x0B85-#x0B8A] | [#x0B8E-#x0B90] | [#x0B92-#x0B95] |
+[#x0B99-#x0B9A] | #x0B9C | [#x0B9E-#x0B9F] | [#x0BA3-#x0BA4] |
+[#x0BA8-#x0BAA] | [#x0BAE-#x0BB5] | [#x0BB7-#x0BB9] | [#x0C05-#x0C0C] |
+[#x0C0E-#x0C10] | [#x0C12-#x0C28] | [#x0C2A-#x0C33] | [#x0C35-#x0C39] |
+[#x0C60-#x0C61] | [#x0C85-#x0C8C] | [#x0C8E-#x0C90] | [#x0C92-#x0CA8] |
+[#x0CAA-#x0CB3] | [#x0CB5-#x0CB9] | #x0CDE | [#x0CE0-#x0CE1] |
+[#x0D05-#x0D0C] | [#x0D0E-#x0D10] | [#x0D12-#x0D28] | [#x0D2A-#x0D39] |
+[#x0D60-#x0D61] | [#x0E01-#x0E2E] | #x0E30 | [#x0E32-#x0E33] |
+[#x0E40-#x0E45] | [#x0E81-#x0E82] | #x0E84 | [#x0E87-#x0E88] | #x0E8A |
+#x0E8D | [#x0E94-#x0E97] | [#x0E99-#x0E9F] | [#x0EA1-#x0EA3] | #x0EA5 |
+#x0EA7 | [#x0EAA-#x0EAB] | [#x0EAD-#x0EAE] | #x0EB0 | [#x0EB2-#x0EB3] |
+#x0EBD | [#x0EC0-#x0EC4] | [#x0F40-#x0F47] | [#x0F49-#x0F69] |
+[#x10A0-#x10C5] | [#x10D0-#x10F6] | #x1100 | [#x1102-#x1103] |
+[#x1105-#x1107] | #x1109 | [#x110B-#x110C] | [#x110E-#x1112] | #x113C |
+#x113E | #x1140 | #x114C | #x114E | #x1150 | [#x1154-#x1155] | #x1159 |
+[#x115F-#x1161] | #x1163 | #x1165 | #x1167 | #x1169 | [#x116D-#x116E] |
+[#x1172-#x1173] | #x1175 | #x119E | #x11A8 | #x11AB | [#x11AE-#x11AF] |
+[#x11B7-#x11B8] | #x11BA | [#x11BC-#x11C2] | #x11EB | #x11F0 | #x11F9 |
+[#x1E00-#x1E9B] | [#x1EA0-#x1EF9] | [#x1F00-#x1F15] | [#x1F18-#x1F1D] |
+[#x1F20-#x1F45] | [#x1F48-#x1F4D] | [#x1F50-#x1F57] | #x1F59 | #x1F5B |
+#x1F5D | [#x1F5F-#x1F7D] | [#x1F80-#x1FB4] | [#x1FB6-#x1FBC] | #x1FBE |
+[#x1FC2-#x1FC4] | [#x1FC6-#x1FCC] | [#x1FD0-#x1FD3] | [#x1FD6-#x1FDB] |
+[#x1FE0-#x1FEC] | [#x1FF2-#x1FF4] | [#x1FF6-#x1FFC] | #x2126 |
+[#x212A-#x212B] | #x212E | [#x2180-#x2182] | [#x3041-#x3094] |
+[#x30A1-#x30FA] | [#x3105-#x312C] | [#xAC00-#xD7A3]"""
+
+ideographic = """[#x4E00-#x9FA5] | #x3007 | [#x3021-#x3029]"""
+
+combiningCharacter = """
+[#x0300-#x0345] | [#x0360-#x0361] | [#x0483-#x0486] | [#x0591-#x05A1] |
+[#x05A3-#x05B9] | [#x05BB-#x05BD] | #x05BF | [#x05C1-#x05C2] | #x05C4 |
+[#x064B-#x0652] | #x0670 | [#x06D6-#x06DC] | [#x06DD-#x06DF] |
+[#x06E0-#x06E4] | [#x06E7-#x06E8] | [#x06EA-#x06ED] | [#x0901-#x0903] |
+#x093C | [#x093E-#x094C] | #x094D | [#x0951-#x0954] | [#x0962-#x0963] |
+[#x0981-#x0983] | #x09BC | #x09BE | #x09BF | [#x09C0-#x09C4] |
+[#x09C7-#x09C8] | [#x09CB-#x09CD] | #x09D7 | [#x09E2-#x09E3] | #x0A02 |
+#x0A3C | #x0A3E | #x0A3F | [#x0A40-#x0A42] | [#x0A47-#x0A48] |
+[#x0A4B-#x0A4D] | [#x0A70-#x0A71] | [#x0A81-#x0A83] | #x0ABC |
+[#x0ABE-#x0AC5] | [#x0AC7-#x0AC9] | [#x0ACB-#x0ACD] | [#x0B01-#x0B03] |
+#x0B3C | [#x0B3E-#x0B43] | [#x0B47-#x0B48] | [#x0B4B-#x0B4D] |
+[#x0B56-#x0B57] | [#x0B82-#x0B83] | [#x0BBE-#x0BC2] | [#x0BC6-#x0BC8] |
+[#x0BCA-#x0BCD] | #x0BD7 | [#x0C01-#x0C03] | [#x0C3E-#x0C44] |
+[#x0C46-#x0C48] | [#x0C4A-#x0C4D] | [#x0C55-#x0C56] | [#x0C82-#x0C83] |
+[#x0CBE-#x0CC4] | [#x0CC6-#x0CC8] | [#x0CCA-#x0CCD] | [#x0CD5-#x0CD6] |
+[#x0D02-#x0D03] | [#x0D3E-#x0D43] | [#x0D46-#x0D48] | [#x0D4A-#x0D4D] |
+#x0D57 | #x0E31 | [#x0E34-#x0E3A] | [#x0E47-#x0E4E] | #x0EB1 |
+[#x0EB4-#x0EB9] | [#x0EBB-#x0EBC] | [#x0EC8-#x0ECD] | [#x0F18-#x0F19] |
+#x0F35 | #x0F37 | #x0F39 | #x0F3E | #x0F3F | [#x0F71-#x0F84] |
+[#x0F86-#x0F8B] | [#x0F90-#x0F95] | #x0F97 | [#x0F99-#x0FAD] |
+[#x0FB1-#x0FB7] | #x0FB9 | [#x20D0-#x20DC] | #x20E1 | [#x302A-#x302F] |
+#x3099 | #x309A"""
+
+digit = """
+[#x0030-#x0039] | [#x0660-#x0669] | [#x06F0-#x06F9] | [#x0966-#x096F] |
+[#x09E6-#x09EF] | [#x0A66-#x0A6F] | [#x0AE6-#x0AEF] | [#x0B66-#x0B6F] |
+[#x0BE7-#x0BEF] | [#x0C66-#x0C6F] | [#x0CE6-#x0CEF] | [#x0D66-#x0D6F] |
+[#x0E50-#x0E59] | [#x0ED0-#x0ED9] | [#x0F20-#x0F29]"""
+
+extender = """
+#x00B7 | #x02D0 | #x02D1 | #x0387 | #x0640 | #x0E46 | #x0EC6 | #x3005 |
+#[#x3031-#x3035] | [#x309D-#x309E] | [#x30FC-#x30FE]"""
+
+letter = " | ".join([baseChar, ideographic])
+
+# Without the
+name = " | ".join([letter, digit, ".", "-", "_", combiningCharacter,
+                   extender])
+nameFirst = " | ".join([letter, "_"])
+
+reChar = re.compile(r"#x([\d|A-F]{4,4})")
+reCharRange = re.compile(r"\[#x([\d|A-F]{4,4})-#x([\d|A-F]{4,4})\]")
+
+
+def charStringToList(chars):
+    charRanges = [item.strip() for item in chars.split(" | ")]
+    rv = []
+    for item in charRanges:
+        foundMatch = False
+        for regexp in (reChar, reCharRange):
+            match = regexp.match(item)
+            if match is not None:
+                rv.append([hexToInt(item) for item in match.groups()])
+                if len(rv[-1]) == 1:
+                    rv[-1] = rv[-1] * 2
+                foundMatch = True
+                break
+        if not foundMatch:
+            assert len(item) == 1
+
+            rv.append([ord(item)] * 2)
+    rv = normaliseCharList(rv)
+    return rv
+
+
+def normaliseCharList(charList):
+    charList = sorted(charList)
+    for item in charList:
+        assert item[1] >= item[0]
+    rv = []
+    i = 0
+    while i < len(charList):
+        j = 1
+        rv.append(charList[i])
+        while i + j < len(charList) and charList[i + j][0] <= rv[-1][1] + 1:
+            rv[-1][1] = charList[i + j][1]
+            j += 1
+        i += j
+    return rv
+
+# We don't really support characters above the BMP :(
+max_unicode = int("FFFF", 16)
+
+
+def missingRanges(charList):
+    rv = []
+    if charList[0] != 0:
+        rv.append([0, charList[0][0] - 1])
+    for i, item in enumerate(charList[:-1]):
+        rv.append([item[1] + 1, charList[i + 1][0] - 1])
+    if charList[-1][1] != max_unicode:
+        rv.append([charList[-1][1] + 1, max_unicode])
+    return rv
+
+
+def listToRegexpStr(charList):
+    rv = []
+    for item in charList:
+        if item[0] == item[1]:
+            rv.append(escapeRegexp(chr(item[0])))
+        else:
+            rv.append(escapeRegexp(chr(item[0])) + "-" +
+                      escapeRegexp(chr(item[1])))
+    return "[%s]" % "".join(rv)
+
+
+def hexToInt(hex_str):
+    return int(hex_str, 16)
+
+
+def escapeRegexp(string):
+    specialCharacters = (".", "^", "$", "*", "+", "?", "{", "}",
+                         "[", "]", "|", "(", ")", "-")
+    for char in specialCharacters:
+        string = string.replace(char, "\\" + char)
+
+    return string
+
+# output from the above
+nonXmlNameBMPRegexp = re.compile('[\x00-,/:-@\\[-\\^`\\{-\xb6\xb8-\xbf\xd7\xf7\u0132-\u0133\u013f-\u0140\u0149\u017f\u01c4-\u01cc\u01f1-\u01f3\u01f6-\u01f9\u0218-\u024f\u02a9-\u02ba\u02c2-\u02cf\u02d2-\u02ff\u0346-\u035f\u0362-\u0385\u038b\u038d\u03a2\u03cf\u03d7-\u03d9\u03db\u03dd\u03df\u03e1\u03f4-\u0400\u040d\u0450\u045d\u0482\u0487-\u048f\u04c5-\u04c6\u04c9-\u04ca\u04cd-\u04cf\u04ec-\u04ed\u04f6-\u04f7\u04fa-\u0530\u0557-\u0558\u055a-\u0560\u0587-\u0590\u05a2\u05ba\u05be\u05c0\u05c3\u05c5-\u05cf\u05eb-\u05ef\u05f3-\u0620\u063b-\u063f\u0653-\u065f\u066a-\u066f\u06b8-\u06b9\u06bf\u06cf\u06d4\u06e9\u06ee-\u06ef\u06fa-\u0900\u0904\u093a-\u093b\u094e-\u0950\u0955-\u0957\u0964-\u0965\u0970-\u0980\u0984\u098d-\u098e\u0991-\u0992\u09a9\u09b1\u09b3-\u09b5\u09ba-\u09bb\u09bd\u09c5-\u09c6\u09c9-\u09ca\u09ce-\u09d6\u09d8-\u09db\u09de\u09e4-\u09e5\u09f2-\u0a01\u0a03-\u0a04\u0a0b-\u0a0e\u0a11-\u0a12\u0a29\u0a31\u0a34\u0a37\u0a3a-\u0a3b\u0a3d\u0a43-\u0a46\u0a49-\u0a4a\u0a4e-\u0a58\u0a5d\u0a5f-\u0a65\u0a75-\u0a80\u0a84\u0a8c\u0a8e\u0a92\u0aa9\u0ab1\u0ab4\u0aba-\u0abb\u0ac6\u0aca\u0ace-\u0adf\u0ae1-\u0ae5\u0af0-\u0b00\u0b04\u0b0d-\u0b0e\u0b11-\u0b12\u0b29\u0b31\u0b34-\u0b35\u0b3a-\u0b3b\u0b44-\u0b46\u0b49-\u0b4a\u0b4e-\u0b55\u0b58-\u0b5b\u0b5e\u0b62-\u0b65\u0b70-\u0b81\u0b84\u0b8b-\u0b8d\u0b91\u0b96-\u0b98\u0b9b\u0b9d\u0ba0-\u0ba2\u0ba5-\u0ba7\u0bab-\u0bad\u0bb6\u0bba-\u0bbd\u0bc3-\u0bc5\u0bc9\u0bce-\u0bd6\u0bd8-\u0be6\u0bf0-\u0c00\u0c04\u0c0d\u0c11\u0c29\u0c34\u0c3a-\u0c3d\u0c45\u0c49\u0c4e-\u0c54\u0c57-\u0c5f\u0c62-\u0c65\u0c70-\u0c81\u0c84\u0c8d\u0c91\u0ca9\u0cb4\u0cba-\u0cbd\u0cc5\u0cc9\u0cce-\u0cd4\u0cd7-\u0cdd\u0cdf\u0ce2-\u0ce5\u0cf0-\u0d01\u0d04\u0d0d\u0d11\u0d29\u0d3a-\u0d3d\u0d44-\u0d45\u0d49\u0d4e-\u0d56\u0d58-\u0d5f\u0d62-\u0d65\u0d70-\u0e00\u0e2f\u0e3b-\u0e3f\u0e4f\u0e5a-\u0e80\u0e83\u0e85-\u0e86\u0e89\u0e8b-\u0e8c\u0e8e-\u0e93\u0e98\u0ea0\u0ea4\u0ea6\u0ea8-\u0ea9\u0eac\u0eaf\u0eba\u0ebe-\u0ebf\u0ec5\u0ec7\u0ece-\u0ecf\u0eda-\u0f17\u0f1a-\u0f1f\u0f2a-\u0f34\u0f36\u0f38\u0f3a-\u0f3d\u0f48\u0f6a-\u0f70\u0f85\u0f8c-\u0f8f\u0f96\u0f98\u0fae-\u0fb0\u0fb8\u0fba-\u109f\u10c6-\u10cf\u10f7-\u10ff\u1101\u1104\u1108\u110a\u110d\u1113-\u113b\u113d\u113f\u1141-\u114b\u114d\u114f\u1151-\u1153\u1156-\u1158\u115a-\u115e\u1162\u1164\u1166\u1168\u116a-\u116c\u116f-\u1171\u1174\u1176-\u119d\u119f-\u11a7\u11a9-\u11aa\u11ac-\u11ad\u11b0-\u11b6\u11b9\u11bb\u11c3-\u11ea\u11ec-\u11ef\u11f1-\u11f8\u11fa-\u1dff\u1e9c-\u1e9f\u1efa-\u1eff\u1f16-\u1f17\u1f1e-\u1f1f\u1f46-\u1f47\u1f4e-\u1f4f\u1f58\u1f5a\u1f5c\u1f5e\u1f7e-\u1f7f\u1fb5\u1fbd\u1fbf-\u1fc1\u1fc5\u1fcd-\u1fcf\u1fd4-\u1fd5\u1fdc-\u1fdf\u1fed-\u1ff1\u1ff5\u1ffd-\u20cf\u20dd-\u20e0\u20e2-\u2125\u2127-\u2129\u212c-\u212d\u212f-\u217f\u2183-\u3004\u3006\u3008-\u3020\u3030\u3036-\u3040\u3095-\u3098\u309b-\u309c\u309f-\u30a0\u30fb\u30ff-\u3104\u312d-\u4dff\u9fa6-\uabff\ud7a4-\uffff]')  # noqa
+
+nonXmlNameFirstBMPRegexp = re.compile('[\x00-@\\[-\\^`\\{-\xbf\xd7\xf7\u0132-\u0133\u013f-\u0140\u0149\u017f\u01c4-\u01cc\u01f1-\u01f3\u01f6-\u01f9\u0218-\u024f\u02a9-\u02ba\u02c2-\u0385\u0387\u038b\u038d\u03a2\u03cf\u03d7-\u03d9\u03db\u03dd\u03df\u03e1\u03f4-\u0400\u040d\u0450\u045d\u0482-\u048f\u04c5-\u04c6\u04c9-\u04ca\u04cd-\u04cf\u04ec-\u04ed\u04f6-\u04f7\u04fa-\u0530\u0557-\u0558\u055a-\u0560\u0587-\u05cf\u05eb-\u05ef\u05f3-\u0620\u063b-\u0640\u064b-\u0670\u06b8-\u06b9\u06bf\u06cf\u06d4\u06d6-\u06e4\u06e7-\u0904\u093a-\u093c\u093e-\u0957\u0962-\u0984\u098d-\u098e\u0991-\u0992\u09a9\u09b1\u09b3-\u09b5\u09ba-\u09db\u09de\u09e2-\u09ef\u09f2-\u0a04\u0a0b-\u0a0e\u0a11-\u0a12\u0a29\u0a31\u0a34\u0a37\u0a3a-\u0a58\u0a5d\u0a5f-\u0a71\u0a75-\u0a84\u0a8c\u0a8e\u0a92\u0aa9\u0ab1\u0ab4\u0aba-\u0abc\u0abe-\u0adf\u0ae1-\u0b04\u0b0d-\u0b0e\u0b11-\u0b12\u0b29\u0b31\u0b34-\u0b35\u0b3a-\u0b3c\u0b3e-\u0b5b\u0b5e\u0b62-\u0b84\u0b8b-\u0b8d\u0b91\u0b96-\u0b98\u0b9b\u0b9d\u0ba0-\u0ba2\u0ba5-\u0ba7\u0bab-\u0bad\u0bb6\u0bba-\u0c04\u0c0d\u0c11\u0c29\u0c34\u0c3a-\u0c5f\u0c62-\u0c84\u0c8d\u0c91\u0ca9\u0cb4\u0cba-\u0cdd\u0cdf\u0ce2-\u0d04\u0d0d\u0d11\u0d29\u0d3a-\u0d5f\u0d62-\u0e00\u0e2f\u0e31\u0e34-\u0e3f\u0e46-\u0e80\u0e83\u0e85-\u0e86\u0e89\u0e8b-\u0e8c\u0e8e-\u0e93\u0e98\u0ea0\u0ea4\u0ea6\u0ea8-\u0ea9\u0eac\u0eaf\u0eb1\u0eb4-\u0ebc\u0ebe-\u0ebf\u0ec5-\u0f3f\u0f48\u0f6a-\u109f\u10c6-\u10cf\u10f7-\u10ff\u1101\u1104\u1108\u110a\u110d\u1113-\u113b\u113d\u113f\u1141-\u114b\u114d\u114f\u1151-\u1153\u1156-\u1158\u115a-\u115e\u1162\u1164\u1166\u1168\u116a-\u116c\u116f-\u1171\u1174\u1176-\u119d\u119f-\u11a7\u11a9-\u11aa\u11ac-\u11ad\u11b0-\u11b6\u11b9\u11bb\u11c3-\u11ea\u11ec-\u11ef\u11f1-\u11f8\u11fa-\u1dff\u1e9c-\u1e9f\u1efa-\u1eff\u1f16-\u1f17\u1f1e-\u1f1f\u1f46-\u1f47\u1f4e-\u1f4f\u1f58\u1f5a\u1f5c\u1f5e\u1f7e-\u1f7f\u1fb5\u1fbd\u1fbf-\u1fc1\u1fc5\u1fcd-\u1fcf\u1fd4-\u1fd5\u1fdc-\u1fdf\u1fed-\u1ff1\u1ff5\u1ffd-\u2125\u2127-\u2129\u212c-\u212d\u212f-\u217f\u2183-\u3006\u3008-\u3020\u302a-\u3040\u3095-\u30a0\u30fb-\u3104\u312d-\u4dff\u9fa6-\uabff\ud7a4-\uffff]')  # noqa
+
+# Simpler things
+nonPubidCharRegexp = re.compile("[^\x20\x0D\x0Aa-zA-Z0-9\-\'()+,./:=?;!*#@$_%]")
+
+
+class InfosetFilter(object):
+    replacementRegexp = re.compile(r"U[\dA-F]{5,5}")
+
+    def __init__(self,
+                 dropXmlnsLocalName=False,
+                 dropXmlnsAttrNs=False,
+                 preventDoubleDashComments=False,
+                 preventDashAtCommentEnd=False,
+                 replaceFormFeedCharacters=True,
+                 preventSingleQuotePubid=False):
+
+        self.dropXmlnsLocalName = dropXmlnsLocalName
+        self.dropXmlnsAttrNs = dropXmlnsAttrNs
+
+        self.preventDoubleDashComments = preventDoubleDashComments
+        self.preventDashAtCommentEnd = preventDashAtCommentEnd
+
+        self.replaceFormFeedCharacters = replaceFormFeedCharacters
+
+        self.preventSingleQuotePubid = preventSingleQuotePubid
+
+        self.replaceCache = {}
+
+    def coerceAttribute(self, name, namespace=None):
+        if self.dropXmlnsLocalName and name.startswith("xmlns:"):
+            warnings.warn("Attributes cannot begin with xmlns", DataLossWarning)
+            return None
+        elif (self.dropXmlnsAttrNs and
+              namespace == "http://www.w3.org/2000/xmlns/"):
+            warnings.warn("Attributes cannot be in the xml namespace", DataLossWarning)
+            return None
+        else:
+            return self.toXmlName(name)
+
+    def coerceElement(self, name):
+        return self.toXmlName(name)
+
+    def coerceComment(self, data):
+        if self.preventDoubleDashComments:
+            while "--" in data:
+                warnings.warn("Comments cannot contain adjacent dashes", DataLossWarning)
+                data = data.replace("--", "- -")
+            if data.endswith("-"):
+                warnings.warn("Comments cannot end in a dash", DataLossWarning)
+                data += " "
+        return data
+
+    def coerceCharacters(self, data):
+        if self.replaceFormFeedCharacters:
+            for _ in range(data.count("\x0C")):
+                warnings.warn("Text cannot contain U+000C", DataLossWarning)
+            data = data.replace("\x0C", " ")
+        # Other non-xml characters
+        return data
+
+    def coercePubid(self, data):
+        dataOutput = data
+        for char in nonPubidCharRegexp.findall(data):
+            warnings.warn("Coercing non-XML pubid", DataLossWarning)
+            replacement = self.getReplacementCharacter(char)
+            dataOutput = dataOutput.replace(char, replacement)
+        if self.preventSingleQuotePubid and dataOutput.find("'") >= 0:
+            warnings.warn("Pubid cannot contain single quote", DataLossWarning)
+            dataOutput = dataOutput.replace("'", self.getReplacementCharacter("'"))
+        return dataOutput
+
+    def toXmlName(self, name):
+        nameFirst = name[0]
+        nameRest = name[1:]
+        m = nonXmlNameFirstBMPRegexp.match(nameFirst)
+        if m:
+            warnings.warn("Coercing non-XML name", DataLossWarning)
+            nameFirstOutput = self.getReplacementCharacter(nameFirst)
+        else:
+            nameFirstOutput = nameFirst
+
+        nameRestOutput = nameRest
+        replaceChars = set(nonXmlNameBMPRegexp.findall(nameRest))
+        for char in replaceChars:
+            warnings.warn("Coercing non-XML name", DataLossWarning)
+            replacement = self.getReplacementCharacter(char)
+            nameRestOutput = nameRestOutput.replace(char, replacement)
+        return nameFirstOutput + nameRestOutput
+
+    def getReplacementCharacter(self, char):
+        if char in self.replaceCache:
+            replacement = self.replaceCache[char]
+        else:
+            replacement = self.escapeChar(char)
+        return replacement
+
+    def fromXmlName(self, name):
+        for item in set(self.replacementRegexp.findall(name)):
+            name = name.replace(item, self.unescapeChar(item))
+        return name
+
+    def escapeChar(self, char):
+        replacement = "U%05X" % ord(char)
+        self.replaceCache[char] = replacement
+        return replacement
+
+    def unescapeChar(self, charcode):
+        return chr(int(charcode[1:], 16))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_inputstream.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_inputstream.py
new file mode 100644
index 0000000..7c5639f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_inputstream.py
@@ -0,0 +1,923 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import text_type, binary_type
+from pip._vendor.six.moves import http_client, urllib
+
+import codecs
+import re
+
+from pip._vendor import webencodings
+
+from .constants import EOF, spaceCharacters, asciiLetters, asciiUppercase
+from .constants import ReparseException
+from . import _utils
+
+from io import StringIO
+
+try:
+    from io import BytesIO
+except ImportError:
+    BytesIO = StringIO
+
+# Non-unicode versions of constants for use in the pre-parser
+spaceCharactersBytes = frozenset([item.encode("ascii") for item in spaceCharacters])
+asciiLettersBytes = frozenset([item.encode("ascii") for item in asciiLetters])
+asciiUppercaseBytes = frozenset([item.encode("ascii") for item in asciiUppercase])
+spacesAngleBrackets = spaceCharactersBytes | frozenset([b">", b"<"])
+
+
+invalid_unicode_no_surrogate = "[\u0001-\u0008\u000B\u000E-\u001F\u007F-\u009F\uFDD0-\uFDEF\uFFFE\uFFFF\U0001FFFE\U0001FFFF\U0002FFFE\U0002FFFF\U0003FFFE\U0003FFFF\U0004FFFE\U0004FFFF\U0005FFFE\U0005FFFF\U0006FFFE\U0006FFFF\U0007FFFE\U0007FFFF\U0008FFFE\U0008FFFF\U0009FFFE\U0009FFFF\U000AFFFE\U000AFFFF\U000BFFFE\U000BFFFF\U000CFFFE\U000CFFFF\U000DFFFE\U000DFFFF\U000EFFFE\U000EFFFF\U000FFFFE\U000FFFFF\U0010FFFE\U0010FFFF]"  # noqa
+
+if _utils.supports_lone_surrogates:
+    # Use one extra step of indirection and create surrogates with
+    # eval. Not using this indirection would introduce an illegal
+    # unicode literal on platforms not supporting such lone
+    # surrogates.
+    assert invalid_unicode_no_surrogate[-1] == "]" and invalid_unicode_no_surrogate.count("]") == 1
+    invalid_unicode_re = re.compile(invalid_unicode_no_surrogate[:-1] +
+                                    eval('"\\uD800-\\uDFFF"') +  # pylint:disable=eval-used
+                                    "]")
+else:
+    invalid_unicode_re = re.compile(invalid_unicode_no_surrogate)
+
+non_bmp_invalid_codepoints = set([0x1FFFE, 0x1FFFF, 0x2FFFE, 0x2FFFF, 0x3FFFE,
+                                  0x3FFFF, 0x4FFFE, 0x4FFFF, 0x5FFFE, 0x5FFFF,
+                                  0x6FFFE, 0x6FFFF, 0x7FFFE, 0x7FFFF, 0x8FFFE,
+                                  0x8FFFF, 0x9FFFE, 0x9FFFF, 0xAFFFE, 0xAFFFF,
+                                  0xBFFFE, 0xBFFFF, 0xCFFFE, 0xCFFFF, 0xDFFFE,
+                                  0xDFFFF, 0xEFFFE, 0xEFFFF, 0xFFFFE, 0xFFFFF,
+                                  0x10FFFE, 0x10FFFF])
+
+ascii_punctuation_re = re.compile("[\u0009-\u000D\u0020-\u002F\u003A-\u0040\u005B-\u0060\u007B-\u007E]")
+
+# Cache for charsUntil()
+charsUntilRegEx = {}
+
+
+class BufferedStream(object):
+    """Buffering for streams that do not have buffering of their own
+
+    The buffer is implemented as a list of chunks on the assumption that
+    joining many strings will be slow since it is O(n**2)
+    """
+
+    def __init__(self, stream):
+        self.stream = stream
+        self.buffer = []
+        self.position = [-1, 0]  # chunk number, offset
+
+    def tell(self):
+        pos = 0
+        for chunk in self.buffer[:self.position[0]]:
+            pos += len(chunk)
+        pos += self.position[1]
+        return pos
+
+    def seek(self, pos):
+        assert pos <= self._bufferedBytes()
+        offset = pos
+        i = 0
+        while len(self.buffer[i]) < offset:
+            offset -= len(self.buffer[i])
+            i += 1
+        self.position = [i, offset]
+
+    def read(self, bytes):
+        if not self.buffer:
+            return self._readStream(bytes)
+        elif (self.position[0] == len(self.buffer) and
+              self.position[1] == len(self.buffer[-1])):
+            return self._readStream(bytes)
+        else:
+            return self._readFromBuffer(bytes)
+
+    def _bufferedBytes(self):
+        return sum([len(item) for item in self.buffer])
+
+    def _readStream(self, bytes):
+        data = self.stream.read(bytes)
+        self.buffer.append(data)
+        self.position[0] += 1
+        self.position[1] = len(data)
+        return data
+
+    def _readFromBuffer(self, bytes):
+        remainingBytes = bytes
+        rv = []
+        bufferIndex = self.position[0]
+        bufferOffset = self.position[1]
+        while bufferIndex < len(self.buffer) and remainingBytes != 0:
+            assert remainingBytes > 0
+            bufferedData = self.buffer[bufferIndex]
+
+            if remainingBytes <= len(bufferedData) - bufferOffset:
+                bytesToRead = remainingBytes
+                self.position = [bufferIndex, bufferOffset + bytesToRead]
+            else:
+                bytesToRead = len(bufferedData) - bufferOffset
+                self.position = [bufferIndex, len(bufferedData)]
+                bufferIndex += 1
+            rv.append(bufferedData[bufferOffset:bufferOffset + bytesToRead])
+            remainingBytes -= bytesToRead
+
+            bufferOffset = 0
+
+        if remainingBytes:
+            rv.append(self._readStream(remainingBytes))
+
+        return b"".join(rv)
+
+
+def HTMLInputStream(source, **kwargs):
+    # Work around Python bug #20007: read(0) closes the connection.
+    # http://bugs.python.org/issue20007
+    if (isinstance(source, http_client.HTTPResponse) or
+        # Also check for addinfourl wrapping HTTPResponse
+        (isinstance(source, urllib.response.addbase) and
+         isinstance(source.fp, http_client.HTTPResponse))):
+        isUnicode = False
+    elif hasattr(source, "read"):
+        isUnicode = isinstance(source.read(0), text_type)
+    else:
+        isUnicode = isinstance(source, text_type)
+
+    if isUnicode:
+        encodings = [x for x in kwargs if x.endswith("_encoding")]
+        if encodings:
+            raise TypeError("Cannot set an encoding with a unicode input, set %r" % encodings)
+
+        return HTMLUnicodeInputStream(source, **kwargs)
+    else:
+        return HTMLBinaryInputStream(source, **kwargs)
+
+
+class HTMLUnicodeInputStream(object):
+    """Provides a unicode stream of characters to the HTMLTokenizer.
+
+    This class takes care of character encoding and removing or replacing
+    incorrect byte-sequences and also provides column and line tracking.
+
+    """
+
+    _defaultChunkSize = 10240
+
+    def __init__(self, source):
+        """Initialises the HTMLInputStream.
+
+        HTMLInputStream(source, [encoding]) -> Normalized stream from source
+        for use by html5lib.
+
+        source can be either a file-object, local filename or a string.
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        """
+
+        if not _utils.supports_lone_surrogates:
+            # Such platforms will have already checked for such
+            # surrogate errors, so no need to do this checking.
+            self.reportCharacterErrors = None
+        elif len("\U0010FFFF") == 1:
+            self.reportCharacterErrors = self.characterErrorsUCS4
+        else:
+            self.reportCharacterErrors = self.characterErrorsUCS2
+
+        # List of where new lines occur
+        self.newLines = [0]
+
+        self.charEncoding = (lookupEncoding("utf-8"), "certain")
+        self.dataStream = self.openStream(source)
+
+        self.reset()
+
+    def reset(self):
+        self.chunk = ""
+        self.chunkSize = 0
+        self.chunkOffset = 0
+        self.errors = []
+
+        # number of (complete) lines in previous chunks
+        self.prevNumLines = 0
+        # number of columns in the last line of the previous chunk
+        self.prevNumCols = 0
+
+        # Deal with CR LF and surrogates split over chunk boundaries
+        self._bufferedCharacter = None
+
+    def openStream(self, source):
+        """Produces a file object from source.
+
+        source can be either a file object, local filename or a string.
+
+        """
+        # Already a file object
+        if hasattr(source, 'read'):
+            stream = source
+        else:
+            stream = StringIO(source)
+
+        return stream
+
+    def _position(self, offset):
+        chunk = self.chunk
+        nLines = chunk.count('\n', 0, offset)
+        positionLine = self.prevNumLines + nLines
+        lastLinePos = chunk.rfind('\n', 0, offset)
+        if lastLinePos == -1:
+            positionColumn = self.prevNumCols + offset
+        else:
+            positionColumn = offset - (lastLinePos + 1)
+        return (positionLine, positionColumn)
+
+    def position(self):
+        """Returns (line, col) of the current position in the stream."""
+        line, col = self._position(self.chunkOffset)
+        return (line + 1, col)
+
+    def char(self):
+        """ Read one character from the stream or queue if available. Return
+            EOF when EOF is reached.
+        """
+        # Read a new chunk from the input stream if necessary
+        if self.chunkOffset >= self.chunkSize:
+            if not self.readChunk():
+                return EOF
+
+        chunkOffset = self.chunkOffset
+        char = self.chunk[chunkOffset]
+        self.chunkOffset = chunkOffset + 1
+
+        return char
+
+    def readChunk(self, chunkSize=None):
+        if chunkSize is None:
+            chunkSize = self._defaultChunkSize
+
+        self.prevNumLines, self.prevNumCols = self._position(self.chunkSize)
+
+        self.chunk = ""
+        self.chunkSize = 0
+        self.chunkOffset = 0
+
+        data = self.dataStream.read(chunkSize)
+
+        # Deal with CR LF and surrogates broken across chunks
+        if self._bufferedCharacter:
+            data = self._bufferedCharacter + data
+            self._bufferedCharacter = None
+        elif not data:
+            # We have no more data, bye-bye stream
+            return False
+
+        if len(data) > 1:
+            lastv = ord(data[-1])
+            if lastv == 0x0D or 0xD800 <= lastv <= 0xDBFF:
+                self._bufferedCharacter = data[-1]
+                data = data[:-1]
+
+        if self.reportCharacterErrors:
+            self.reportCharacterErrors(data)
+
+        # Replace invalid characters
+        data = data.replace("\r\n", "\n")
+        data = data.replace("\r", "\n")
+
+        self.chunk = data
+        self.chunkSize = len(data)
+
+        return True
+
+    def characterErrorsUCS4(self, data):
+        for _ in range(len(invalid_unicode_re.findall(data))):
+            self.errors.append("invalid-codepoint")
+
+    def characterErrorsUCS2(self, data):
+        # Someone picked the wrong compile option
+        # You lose
+        skip = False
+        for match in invalid_unicode_re.finditer(data):
+            if skip:
+                continue
+            codepoint = ord(match.group())
+            pos = match.start()
+            # Pretty sure there should be endianness issues here
+            if _utils.isSurrogatePair(data[pos:pos + 2]):
+                # We have a surrogate pair!
+                char_val = _utils.surrogatePairToCodepoint(data[pos:pos + 2])
+                if char_val in non_bmp_invalid_codepoints:
+                    self.errors.append("invalid-codepoint")
+                skip = True
+            elif (codepoint >= 0xD800 and codepoint <= 0xDFFF and
+                  pos == len(data) - 1):
+                self.errors.append("invalid-codepoint")
+            else:
+                skip = False
+                self.errors.append("invalid-codepoint")
+
+    def charsUntil(self, characters, opposite=False):
+        """ Returns a string of characters from the stream up to but not
+        including any character in 'characters' or EOF. 'characters' must be
+        a container that supports the 'in' method and iteration over its
+        characters.
+        """
+
+        # Use a cache of regexps to find the required characters
+        try:
+            chars = charsUntilRegEx[(characters, opposite)]
+        except KeyError:
+            if __debug__:
+                for c in characters:
+                    assert(ord(c) < 128)
+            regex = "".join(["\\x%02x" % ord(c) for c in characters])
+            if not opposite:
+                regex = "^%s" % regex
+            chars = charsUntilRegEx[(characters, opposite)] = re.compile("[%s]+" % regex)
+
+        rv = []
+
+        while True:
+            # Find the longest matching prefix
+            m = chars.match(self.chunk, self.chunkOffset)
+            if m is None:
+                # If nothing matched, and it wasn't because we ran out of chunk,
+                # then stop
+                if self.chunkOffset != self.chunkSize:
+                    break
+            else:
+                end = m.end()
+                # If not the whole chunk matched, return everything
+                # up to the part that didn't match
+                if end != self.chunkSize:
+                    rv.append(self.chunk[self.chunkOffset:end])
+                    self.chunkOffset = end
+                    break
+            # If the whole remainder of the chunk matched,
+            # use it all and read the next chunk
+            rv.append(self.chunk[self.chunkOffset:])
+            if not self.readChunk():
+                # Reached EOF
+                break
+
+        r = "".join(rv)
+        return r
+
+    def unget(self, char):
+        # Only one character is allowed to be ungotten at once - it must
+        # be consumed again before any further call to unget
+        if char is not None:
+            if self.chunkOffset == 0:
+                # unget is called quite rarely, so it's a good idea to do
+                # more work here if it saves a bit of work in the frequently
+                # called char and charsUntil.
+                # So, just prepend the ungotten character onto the current
+                # chunk:
+                self.chunk = char + self.chunk
+                self.chunkSize += 1
+            else:
+                self.chunkOffset -= 1
+                assert self.chunk[self.chunkOffset] == char
+
+
+class HTMLBinaryInputStream(HTMLUnicodeInputStream):
+    """Provides a unicode stream of characters to the HTMLTokenizer.
+
+    This class takes care of character encoding and removing or replacing
+    incorrect byte-sequences and also provides column and line tracking.
+
+    """
+
+    def __init__(self, source, override_encoding=None, transport_encoding=None,
+                 same_origin_parent_encoding=None, likely_encoding=None,
+                 default_encoding="windows-1252", useChardet=True):
+        """Initialises the HTMLInputStream.
+
+        HTMLInputStream(source, [encoding]) -> Normalized stream from source
+        for use by html5lib.
+
+        source can be either a file-object, local filename or a string.
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        """
+        # Raw Stream - for unicode objects this will encode to utf-8 and set
+        #              self.charEncoding as appropriate
+        self.rawStream = self.openStream(source)
+
+        HTMLUnicodeInputStream.__init__(self, self.rawStream)
+
+        # Encoding Information
+        # Number of bytes to use when looking for a meta element with
+        # encoding information
+        self.numBytesMeta = 1024
+        # Number of bytes to use when using detecting encoding using chardet
+        self.numBytesChardet = 100
+        # Things from args
+        self.override_encoding = override_encoding
+        self.transport_encoding = transport_encoding
+        self.same_origin_parent_encoding = same_origin_parent_encoding
+        self.likely_encoding = likely_encoding
+        self.default_encoding = default_encoding
+
+        # Determine encoding
+        self.charEncoding = self.determineEncoding(useChardet)
+        assert self.charEncoding[0] is not None
+
+        # Call superclass
+        self.reset()
+
+    def reset(self):
+        self.dataStream = self.charEncoding[0].codec_info.streamreader(self.rawStream, 'replace')
+        HTMLUnicodeInputStream.reset(self)
+
+    def openStream(self, source):
+        """Produces a file object from source.
+
+        source can be either a file object, local filename or a string.
+
+        """
+        # Already a file object
+        if hasattr(source, 'read'):
+            stream = source
+        else:
+            stream = BytesIO(source)
+
+        try:
+            stream.seek(stream.tell())
+        except:  # pylint:disable=bare-except
+            stream = BufferedStream(stream)
+
+        return stream
+
+    def determineEncoding(self, chardet=True):
+        # BOMs take precedence over everything
+        # This will also read past the BOM if present
+        charEncoding = self.detectBOM(), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # If we've been overriden, we've been overriden
+        charEncoding = lookupEncoding(self.override_encoding), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Now check the transport layer
+        charEncoding = lookupEncoding(self.transport_encoding), "certain"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Look for meta elements with encoding information
+        charEncoding = self.detectEncodingMeta(), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Parent document encoding
+        charEncoding = lookupEncoding(self.same_origin_parent_encoding), "tentative"
+        if charEncoding[0] is not None and not charEncoding[0].name.startswith("utf-16"):
+            return charEncoding
+
+        # "likely" encoding
+        charEncoding = lookupEncoding(self.likely_encoding), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Guess with chardet, if available
+        if chardet:
+            try:
+                from chardet.universaldetector import UniversalDetector
+            except ImportError:
+                pass
+            else:
+                buffers = []
+                detector = UniversalDetector()
+                while not detector.done:
+                    buffer = self.rawStream.read(self.numBytesChardet)
+                    assert isinstance(buffer, bytes)
+                    if not buffer:
+                        break
+                    buffers.append(buffer)
+                    detector.feed(buffer)
+                detector.close()
+                encoding = lookupEncoding(detector.result['encoding'])
+                self.rawStream.seek(0)
+                if encoding is not None:
+                    return encoding, "tentative"
+
+        # Try the default encoding
+        charEncoding = lookupEncoding(self.default_encoding), "tentative"
+        if charEncoding[0] is not None:
+            return charEncoding
+
+        # Fallback to html5lib's default if even that hasn't worked
+        return lookupEncoding("windows-1252"), "tentative"
+
+    def changeEncoding(self, newEncoding):
+        assert self.charEncoding[1] != "certain"
+        newEncoding = lookupEncoding(newEncoding)
+        if newEncoding is None:
+            return
+        if newEncoding.name in ("utf-16be", "utf-16le"):
+            newEncoding = lookupEncoding("utf-8")
+            assert newEncoding is not None
+        elif newEncoding == self.charEncoding[0]:
+            self.charEncoding = (self.charEncoding[0], "certain")
+        else:
+            self.rawStream.seek(0)
+            self.charEncoding = (newEncoding, "certain")
+            self.reset()
+            raise ReparseException("Encoding changed from %s to %s" % (self.charEncoding[0], newEncoding))
+
+    def detectBOM(self):
+        """Attempts to detect at BOM at the start of the stream. If
+        an encoding can be determined from the BOM return the name of the
+        encoding otherwise return None"""
+        bomDict = {
+            codecs.BOM_UTF8: 'utf-8',
+            codecs.BOM_UTF16_LE: 'utf-16le', codecs.BOM_UTF16_BE: 'utf-16be',
+            codecs.BOM_UTF32_LE: 'utf-32le', codecs.BOM_UTF32_BE: 'utf-32be'
+        }
+
+        # Go to beginning of file and read in 4 bytes
+        string = self.rawStream.read(4)
+        assert isinstance(string, bytes)
+
+        # Try detecting the BOM using bytes from the string
+        encoding = bomDict.get(string[:3])         # UTF-8
+        seek = 3
+        if not encoding:
+            # Need to detect UTF-32 before UTF-16
+            encoding = bomDict.get(string)         # UTF-32
+            seek = 4
+            if not encoding:
+                encoding = bomDict.get(string[:2])  # UTF-16
+                seek = 2
+
+        # Set the read position past the BOM if one was found, otherwise
+        # set it to the start of the stream
+        if encoding:
+            self.rawStream.seek(seek)
+            return lookupEncoding(encoding)
+        else:
+            self.rawStream.seek(0)
+            return None
+
+    def detectEncodingMeta(self):
+        """Report the encoding declared by the meta element
+        """
+        buffer = self.rawStream.read(self.numBytesMeta)
+        assert isinstance(buffer, bytes)
+        parser = EncodingParser(buffer)
+        self.rawStream.seek(0)
+        encoding = parser.getEncoding()
+
+        if encoding is not None and encoding.name in ("utf-16be", "utf-16le"):
+            encoding = lookupEncoding("utf-8")
+
+        return encoding
+
+
+class EncodingBytes(bytes):
+    """String-like object with an associated position and various extra methods
+    If the position is ever greater than the string length then an exception is
+    raised"""
+    def __new__(self, value):
+        assert isinstance(value, bytes)
+        return bytes.__new__(self, value.lower())
+
+    def __init__(self, value):
+        # pylint:disable=unused-argument
+        self._position = -1
+
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        p = self._position = self._position + 1
+        if p >= len(self):
+            raise StopIteration
+        elif p < 0:
+            raise TypeError
+        return self[p:p + 1]
+
+    def next(self):
+        # Py2 compat
+        return self.__next__()
+
+    def previous(self):
+        p = self._position
+        if p >= len(self):
+            raise StopIteration
+        elif p < 0:
+            raise TypeError
+        self._position = p = p - 1
+        return self[p:p + 1]
+
+    def setPosition(self, position):
+        if self._position >= len(self):
+            raise StopIteration
+        self._position = position
+
+    def getPosition(self):
+        if self._position >= len(self):
+            raise StopIteration
+        if self._position >= 0:
+            return self._position
+        else:
+            return None
+
+    position = property(getPosition, setPosition)
+
+    def getCurrentByte(self):
+        return self[self.position:self.position + 1]
+
+    currentByte = property(getCurrentByte)
+
+    def skip(self, chars=spaceCharactersBytes):
+        """Skip past a list of characters"""
+        p = self.position               # use property for the error-checking
+        while p < len(self):
+            c = self[p:p + 1]
+            if c not in chars:
+                self._position = p
+                return c
+            p += 1
+        self._position = p
+        return None
+
+    def skipUntil(self, chars):
+        p = self.position
+        while p < len(self):
+            c = self[p:p + 1]
+            if c in chars:
+                self._position = p
+                return c
+            p += 1
+        self._position = p
+        return None
+
+    def matchBytes(self, bytes):
+        """Look for a sequence of bytes at the start of a string. If the bytes
+        are found return True and advance the position to the byte after the
+        match. Otherwise return False and leave the position alone"""
+        p = self.position
+        data = self[p:p + len(bytes)]
+        rv = data.startswith(bytes)
+        if rv:
+            self.position += len(bytes)
+        return rv
+
+    def jumpTo(self, bytes):
+        """Look for the next sequence of bytes matching a given sequence. If
+        a match is found advance the position to the last byte of the match"""
+        newPosition = self[self.position:].find(bytes)
+        if newPosition > -1:
+            # XXX: This is ugly, but I can't see a nicer way to fix this.
+            if self._position == -1:
+                self._position = 0
+            self._position += (newPosition + len(bytes) - 1)
+            return True
+        else:
+            raise StopIteration
+
+
+class EncodingParser(object):
+    """Mini parser for detecting character encoding from meta elements"""
+
+    def __init__(self, data):
+        """string - the data to work on for encoding detection"""
+        self.data = EncodingBytes(data)
+        self.encoding = None
+
+    def getEncoding(self):
+        methodDispatch = (
+            (b"")
+
+    def handleMeta(self):
+        if self.data.currentByte not in spaceCharactersBytes:
+            # if we have <meta not followed by a space so just keep going
+            return True
+        # We have a valid meta element we want to search for attributes
+        hasPragma = False
+        pendingEncoding = None
+        while True:
+            # Try to find the next attribute after the current position
+            attr = self.getAttribute()
+            if attr is None:
+                return True
+            else:
+                if attr[0] == b"http-equiv":
+                    hasPragma = attr[1] == b"content-type"
+                    if hasPragma and pendingEncoding is not None:
+                        self.encoding = pendingEncoding
+                        return False
+                elif attr[0] == b"charset":
+                    tentativeEncoding = attr[1]
+                    codec = lookupEncoding(tentativeEncoding)
+                    if codec is not None:
+                        self.encoding = codec
+                        return False
+                elif attr[0] == b"content":
+                    contentParser = ContentAttrParser(EncodingBytes(attr[1]))
+                    tentativeEncoding = contentParser.parse()
+                    if tentativeEncoding is not None:
+                        codec = lookupEncoding(tentativeEncoding)
+                        if codec is not None:
+                            if hasPragma:
+                                self.encoding = codec
+                                return False
+                            else:
+                                pendingEncoding = codec
+
+    def handlePossibleStartTag(self):
+        return self.handlePossibleTag(False)
+
+    def handlePossibleEndTag(self):
+        next(self.data)
+        return self.handlePossibleTag(True)
+
+    def handlePossibleTag(self, endTag):
+        data = self.data
+        if data.currentByte not in asciiLettersBytes:
+            # If the next byte is not an ascii letter either ignore this
+            # fragment (possible start tag case) or treat it according to
+            # handleOther
+            if endTag:
+                data.previous()
+                self.handleOther()
+            return True
+
+        c = data.skipUntil(spacesAngleBrackets)
+        if c == b"<":
+            # return to the first step in the overall "two step" algorithm
+            # reprocessing the < byte
+            data.previous()
+        else:
+            # Read all attributes
+            attr = self.getAttribute()
+            while attr is not None:
+                attr = self.getAttribute()
+        return True
+
+    def handleOther(self):
+        return self.data.jumpTo(b">")
+
+    def getAttribute(self):
+        """Return a name,value pair for the next attribute in the stream,
+        if one is found, or None"""
+        data = self.data
+        # Step 1 (skip chars)
+        c = data.skip(spaceCharactersBytes | frozenset([b"/"]))
+        assert c is None or len(c) == 1
+        # Step 2
+        if c in (b">", None):
+            return None
+        # Step 3
+        attrName = []
+        attrValue = []
+        # Step 4 attribute name
+        while True:
+            if c == b"=" and attrName:
+                break
+            elif c in spaceCharactersBytes:
+                # Step 6!
+                c = data.skip()
+                break
+            elif c in (b"/", b">"):
+                return b"".join(attrName), b""
+            elif c in asciiUppercaseBytes:
+                attrName.append(c.lower())
+            elif c is None:
+                return None
+            else:
+                attrName.append(c)
+            # Step 5
+            c = next(data)
+        # Step 7
+        if c != b"=":
+            data.previous()
+            return b"".join(attrName), b""
+        # Step 8
+        next(data)
+        # Step 9
+        c = data.skip()
+        # Step 10
+        if c in (b"'", b'"'):
+            # 10.1
+            quoteChar = c
+            while True:
+                # 10.2
+                c = next(data)
+                # 10.3
+                if c == quoteChar:
+                    next(data)
+                    return b"".join(attrName), b"".join(attrValue)
+                # 10.4
+                elif c in asciiUppercaseBytes:
+                    attrValue.append(c.lower())
+                # 10.5
+                else:
+                    attrValue.append(c)
+        elif c == b">":
+            return b"".join(attrName), b""
+        elif c in asciiUppercaseBytes:
+            attrValue.append(c.lower())
+        elif c is None:
+            return None
+        else:
+            attrValue.append(c)
+        # Step 11
+        while True:
+            c = next(data)
+            if c in spacesAngleBrackets:
+                return b"".join(attrName), b"".join(attrValue)
+            elif c in asciiUppercaseBytes:
+                attrValue.append(c.lower())
+            elif c is None:
+                return None
+            else:
+                attrValue.append(c)
+
+
+class ContentAttrParser(object):
+    def __init__(self, data):
+        assert isinstance(data, bytes)
+        self.data = data
+
+    def parse(self):
+        try:
+            # Check if the attr name is charset
+            # otherwise return
+            self.data.jumpTo(b"charset")
+            self.data.position += 1
+            self.data.skip()
+            if not self.data.currentByte == b"=":
+                # If there is no = sign keep looking for attrs
+                return None
+            self.data.position += 1
+            self.data.skip()
+            # Look for an encoding between matching quote marks
+            if self.data.currentByte in (b'"', b"'"):
+                quoteMark = self.data.currentByte
+                self.data.position += 1
+                oldPosition = self.data.position
+                if self.data.jumpTo(quoteMark):
+                    return self.data[oldPosition:self.data.position]
+                else:
+                    return None
+            else:
+                # Unquoted value
+                oldPosition = self.data.position
+                try:
+                    self.data.skipUntil(spaceCharactersBytes)
+                    return self.data[oldPosition:self.data.position]
+                except StopIteration:
+                    # Return the whole remaining value
+                    return self.data[oldPosition:]
+        except StopIteration:
+            return None
+
+
+def lookupEncoding(encoding):
+    """Return the python codec name corresponding to an encoding or None if the
+    string doesn't correspond to a valid encoding."""
+    if isinstance(encoding, binary_type):
+        try:
+            encoding = encoding.decode("ascii")
+        except UnicodeDecodeError:
+            return None
+
+    if encoding is not None:
+        try:
+            return webencodings.lookup(encoding)
+        except AttributeError:
+            return None
+    else:
+        return None
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_tokenizer.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_tokenizer.py
new file mode 100644
index 0000000..178f6e7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_tokenizer.py
@@ -0,0 +1,1721 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import unichr as chr
+
+from collections import deque
+
+from .constants import spaceCharacters
+from .constants import entities
+from .constants import asciiLetters, asciiUpper2Lower
+from .constants import digits, hexDigits, EOF
+from .constants import tokenTypes, tagTokenTypes
+from .constants import replacementCharacters
+
+from ._inputstream import HTMLInputStream
+
+from ._trie import Trie
+
+entitiesTrie = Trie(entities)
+
+
+class HTMLTokenizer(object):
+    """ This class takes care of tokenizing HTML.
+
+    * self.currentToken
+      Holds the token that is currently being processed.
+
+    * self.state
+      Holds a reference to the method to be invoked... XXX
+
+    * self.stream
+      Points to HTMLInputStream object.
+    """
+
+    def __init__(self, stream, parser=None, **kwargs):
+
+        self.stream = HTMLInputStream(stream, **kwargs)
+        self.parser = parser
+
+        # Setup the initial tokenizer state
+        self.escapeFlag = False
+        self.lastFourChars = []
+        self.state = self.dataState
+        self.escape = False
+
+        # The current token being created
+        self.currentToken = None
+        super(HTMLTokenizer, self).__init__()
+
+    def __iter__(self):
+        """ This is where the magic happens.
+
+        We do our usually processing through the states and when we have a token
+        to return we yield the token which pauses processing until the next token
+        is requested.
+        """
+        self.tokenQueue = deque([])
+        # Start processing. When EOF is reached self.state will return False
+        # instead of True and the loop will terminate.
+        while self.state():
+            while self.stream.errors:
+                yield {"type": tokenTypes["ParseError"], "data": self.stream.errors.pop(0)}
+            while self.tokenQueue:
+                yield self.tokenQueue.popleft()
+
+    def consumeNumberEntity(self, isHex):
+        """This function returns either U+FFFD or the character based on the
+        decimal or hexadecimal representation. It also discards ";" if present.
+        If not present self.tokenQueue.append({"type": tokenTypes["ParseError"]}) is invoked.
+        """
+
+        allowed = digits
+        radix = 10
+        if isHex:
+            allowed = hexDigits
+            radix = 16
+
+        charStack = []
+
+        # Consume all the characters that are in range while making sure we
+        # don't hit an EOF.
+        c = self.stream.char()
+        while c in allowed and c is not EOF:
+            charStack.append(c)
+            c = self.stream.char()
+
+        # Convert the set of characters consumed to an int.
+        charAsInt = int("".join(charStack), radix)
+
+        # Certain characters get replaced with others
+        if charAsInt in replacementCharacters:
+            char = replacementCharacters[charAsInt]
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "illegal-codepoint-for-numeric-entity",
+                                    "datavars": {"charAsInt": charAsInt}})
+        elif ((0xD800 <= charAsInt <= 0xDFFF) or
+              (charAsInt > 0x10FFFF)):
+            char = "\uFFFD"
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "illegal-codepoint-for-numeric-entity",
+                                    "datavars": {"charAsInt": charAsInt}})
+        else:
+            # Should speed up this check somehow (e.g. move the set to a constant)
+            if ((0x0001 <= charAsInt <= 0x0008) or
+                (0x000E <= charAsInt <= 0x001F) or
+                (0x007F <= charAsInt <= 0x009F) or
+                (0xFDD0 <= charAsInt <= 0xFDEF) or
+                charAsInt in frozenset([0x000B, 0xFFFE, 0xFFFF, 0x1FFFE,
+                                        0x1FFFF, 0x2FFFE, 0x2FFFF, 0x3FFFE,
+                                        0x3FFFF, 0x4FFFE, 0x4FFFF, 0x5FFFE,
+                                        0x5FFFF, 0x6FFFE, 0x6FFFF, 0x7FFFE,
+                                        0x7FFFF, 0x8FFFE, 0x8FFFF, 0x9FFFE,
+                                        0x9FFFF, 0xAFFFE, 0xAFFFF, 0xBFFFE,
+                                        0xBFFFF, 0xCFFFE, 0xCFFFF, 0xDFFFE,
+                                        0xDFFFF, 0xEFFFE, 0xEFFFF, 0xFFFFE,
+                                        0xFFFFF, 0x10FFFE, 0x10FFFF])):
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data":
+                                        "illegal-codepoint-for-numeric-entity",
+                                        "datavars": {"charAsInt": charAsInt}})
+            try:
+                # Try/except needed as UCS-2 Python builds' unichar only works
+                # within the BMP.
+                char = chr(charAsInt)
+            except ValueError:
+                v = charAsInt - 0x10000
+                char = chr(0xD800 | (v >> 10)) + chr(0xDC00 | (v & 0x3FF))
+
+        # Discard the ; if present. Otherwise, put it back on the queue and
+        # invoke parseError on parser.
+        if c != ";":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "numeric-entity-without-semicolon"})
+            self.stream.unget(c)
+
+        return char
+
+    def consumeEntity(self, allowedChar=None, fromAttribute=False):
+        # Initialise to the default output for when no entity is matched
+        output = "&"
+
+        charStack = [self.stream.char()]
+        if (charStack[0] in spaceCharacters or charStack[0] in (EOF, "<", "&") or
+                (allowedChar is not None and allowedChar == charStack[0])):
+            self.stream.unget(charStack[0])
+
+        elif charStack[0] == "#":
+            # Read the next character to see if it's hex or decimal
+            hex = False
+            charStack.append(self.stream.char())
+            if charStack[-1] in ("x", "X"):
+                hex = True
+                charStack.append(self.stream.char())
+
+            # charStack[-1] should be the first digit
+            if (hex and charStack[-1] in hexDigits) \
+                    or (not hex and charStack[-1] in digits):
+                # At least one digit found, so consume the whole number
+                self.stream.unget(charStack[-1])
+                output = self.consumeNumberEntity(hex)
+            else:
+                # No digits found
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data": "expected-numeric-entity"})
+                self.stream.unget(charStack.pop())
+                output = "&" + "".join(charStack)
+
+        else:
+            # At this point in the process might have named entity. Entities
+            # are stored in the global variable "entities".
+            #
+            # Consume characters and compare to these to a substring of the
+            # entity names in the list until the substring no longer matches.
+            while (charStack[-1] is not EOF):
+                if not entitiesTrie.has_keys_with_prefix("".join(charStack)):
+                    break
+                charStack.append(self.stream.char())
+
+            # At this point we have a string that starts with some characters
+            # that may match an entity
+            # Try to find the longest entity the string will match to take care
+            # of ¬i for instance.
+            try:
+                entityName = entitiesTrie.longest_prefix("".join(charStack[:-1]))
+                entityLength = len(entityName)
+            except KeyError:
+                entityName = None
+
+            if entityName is not None:
+                if entityName[-1] != ";":
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                            "named-entity-without-semicolon"})
+                if (entityName[-1] != ";" and fromAttribute and
+                    (charStack[entityLength] in asciiLetters or
+                     charStack[entityLength] in digits or
+                     charStack[entityLength] == "=")):
+                    self.stream.unget(charStack.pop())
+                    output = "&" + "".join(charStack)
+                else:
+                    output = entities[entityName]
+                    self.stream.unget(charStack.pop())
+                    output += "".join(charStack[entityLength:])
+            else:
+                self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                        "expected-named-entity"})
+                self.stream.unget(charStack.pop())
+                output = "&" + "".join(charStack)
+
+        if fromAttribute:
+            self.currentToken["data"][-1][1] += output
+        else:
+            if output in spaceCharacters:
+                tokenType = "SpaceCharacters"
+            else:
+                tokenType = "Characters"
+            self.tokenQueue.append({"type": tokenTypes[tokenType], "data": output})
+
+    def processEntityInAttribute(self, allowedChar):
+        """This method replaces the need for "entityInAttributeValueState".
+        """
+        self.consumeEntity(allowedChar=allowedChar, fromAttribute=True)
+
+    def emitCurrentToken(self):
+        """This method is a generic handler for emitting the tags. It also sets
+        the state to "data" because that's what's needed after a token has been
+        emitted.
+        """
+        token = self.currentToken
+        # Add token to the queue to be yielded
+        if (token["type"] in tagTokenTypes):
+            token["name"] = token["name"].translate(asciiUpper2Lower)
+            if token["type"] == tokenTypes["EndTag"]:
+                if token["data"]:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                            "data": "attributes-in-end-tag"})
+                if token["selfClosing"]:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                            "data": "self-closing-flag-on-end-tag"})
+        self.tokenQueue.append(token)
+        self.state = self.dataState
+
+    # Below are the various tokenizer states worked out.
+    def dataState(self):
+        data = self.stream.char()
+        if data == "&":
+            self.state = self.entityDataState
+        elif data == "<":
+            self.state = self.tagOpenState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\u0000"})
+        elif data is EOF:
+            # Tokenization ends.
+            return False
+        elif data in spaceCharacters:
+            # Directly after emitting a token you switch back to the "data
+            # state". At that point spaceCharacters are important so they are
+            # emitted separately.
+            self.tokenQueue.append({"type": tokenTypes["SpaceCharacters"], "data":
+                                    data + self.stream.charsUntil(spaceCharacters, True)})
+            # No need to update lastFourChars here, since the first space will
+            # have already been appended to lastFourChars and will have broken
+            # any  sequences
+        else:
+            chars = self.stream.charsUntil(("&", "<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def entityDataState(self):
+        self.consumeEntity()
+        self.state = self.dataState
+        return True
+
+    def rcdataState(self):
+        data = self.stream.char()
+        if data == "&":
+            self.state = self.characterReferenceInRcdata
+        elif data == "<":
+            self.state = self.rcdataLessThanSignState
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data in spaceCharacters:
+            # Directly after emitting a token you switch back to the "data
+            # state". At that point spaceCharacters are important so they are
+            # emitted separately.
+            self.tokenQueue.append({"type": tokenTypes["SpaceCharacters"], "data":
+                                    data + self.stream.charsUntil(spaceCharacters, True)})
+            # No need to update lastFourChars here, since the first space will
+            # have already been appended to lastFourChars and will have broken
+            # any  sequences
+        else:
+            chars = self.stream.charsUntil(("&", "<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def characterReferenceInRcdata(self):
+        self.consumeEntity()
+        self.state = self.rcdataState
+        return True
+
+    def rawtextState(self):
+        data = self.stream.char()
+        if data == "<":
+            self.state = self.rawtextLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        else:
+            chars = self.stream.charsUntil(("<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def scriptDataState(self):
+        data = self.stream.char()
+        if data == "<":
+            self.state = self.scriptDataLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            # Tokenization ends.
+            return False
+        else:
+            chars = self.stream.charsUntil(("<", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def plaintextState(self):
+        data = self.stream.char()
+        if data == EOF:
+            # Tokenization ends.
+            return False
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + self.stream.charsUntil("\u0000")})
+        return True
+
+    def tagOpenState(self):
+        data = self.stream.char()
+        if data == "!":
+            self.state = self.markupDeclarationOpenState
+        elif data == "/":
+            self.state = self.closeTagOpenState
+        elif data in asciiLetters:
+            self.currentToken = {"type": tokenTypes["StartTag"],
+                                 "name": data, "data": [],
+                                 "selfClosing": False,
+                                 "selfClosingAcknowledged": False}
+            self.state = self.tagNameState
+        elif data == ">":
+            # XXX In theory it could be something besides a tag name. But
+            # do we really care?
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name-but-got-right-bracket"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<>"})
+            self.state = self.dataState
+        elif data == "?":
+            # XXX In theory it could be something besides a tag name. But
+            # do we really care?
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name-but-got-question-mark"})
+            self.stream.unget(data)
+            self.state = self.bogusCommentState
+        else:
+            # XXX
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-tag-name"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        return True
+
+    def closeTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.currentToken = {"type": tokenTypes["EndTag"], "name": data,
+                                 "data": [], "selfClosing": False}
+            self.state = self.tagNameState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-closing-tag-but-got-right-bracket"})
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-closing-tag-but-got-eof"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "</"})
+            self.state = self.dataState
+        else:
+            # XXX data can be _'_...
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-closing-tag-but-got-char",
+                                    "datavars": {"data": data}})
+            self.stream.unget(data)
+            self.state = self.bogusCommentState
+        return True
+
+    def tagNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeAttributeNameState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-tag-name"})
+            self.state = self.dataState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] += "\uFFFD"
+        else:
+            self.currentToken["name"] += data
+            # (Don't use charsUntil here, because tag names are
+            # very short and it's faster to not do anything fancy)
+        return True
+
+    def rcdataLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.rcdataEndTagOpenState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.rcdataState
+        return True
+
+    def rcdataEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer += data
+            self.state = self.rcdataEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "</"})
+            self.stream.unget(data)
+            self.state = self.rcdataState
+        return True
+
+    def rcdataEndTagNameState(self):
+        appropriate = self.currentToken and self.currentToken["name"].lower() == self.temporaryBuffer.lower()
+        data = self.stream.char()
+        if data in spaceCharacters and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.beforeAttributeNameState
+        elif data == "/" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.selfClosingStartTagState
+        elif data == ">" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "</" + self.temporaryBuffer})
+            self.stream.unget(data)
+            self.state = self.rcdataState
+        return True
+
+    def rawtextLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.rawtextEndTagOpenState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.rawtextState
+        return True
+
+    def rawtextEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer += data
+            self.state = self.rawtextEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "</"})
+            self.stream.unget(data)
+            self.state = self.rawtextState
+        return True
+
+    def rawtextEndTagNameState(self):
+        appropriate = self.currentToken and self.currentToken["name"].lower() == self.temporaryBuffer.lower()
+        data = self.stream.char()
+        if data in spaceCharacters and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.beforeAttributeNameState
+        elif data == "/" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.selfClosingStartTagState
+        elif data == ">" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "</" + self.temporaryBuffer})
+            self.stream.unget(data)
+            self.state = self.rawtextState
+        return True
+
+    def scriptDataLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.scriptDataEndTagOpenState
+        elif data == "!":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<!"})
+            self.state = self.scriptDataEscapeStartState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.scriptDataState
+        return True
+
+    def scriptDataEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer += data
+            self.state = self.scriptDataEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "</"})
+            self.stream.unget(data)
+            self.state = self.scriptDataState
+        return True
+
+    def scriptDataEndTagNameState(self):
+        appropriate = self.currentToken and self.currentToken["name"].lower() == self.temporaryBuffer.lower()
+        data = self.stream.char()
+        if data in spaceCharacters and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.beforeAttributeNameState
+        elif data == "/" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.selfClosingStartTagState
+        elif data == ">" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "</" + self.temporaryBuffer})
+            self.stream.unget(data)
+            self.state = self.scriptDataState
+        return True
+
+    def scriptDataEscapeStartState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataEscapeStartDashState
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataState
+        return True
+
+    def scriptDataEscapeStartDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataEscapedDashDashState
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataState
+        return True
+
+    def scriptDataEscapedState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataEscapedDashState
+        elif data == "<":
+            self.state = self.scriptDataEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            self.state = self.dataState
+        else:
+            chars = self.stream.charsUntil(("<", "-", "\u0000"))
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data":
+                                    data + chars})
+        return True
+
+    def scriptDataEscapedDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataEscapedDashDashState
+        elif data == "<":
+            self.state = self.scriptDataEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataEscapedState
+        elif data == EOF:
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedDashDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+        elif data == "<":
+            self.state = self.scriptDataEscapedLessThanSignState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": ">"})
+            self.state = self.scriptDataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataEscapedState
+        elif data == EOF:
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.temporaryBuffer = ""
+            self.state = self.scriptDataEscapedEndTagOpenState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<" + data})
+            self.temporaryBuffer = data
+            self.state = self.scriptDataDoubleEscapeStartState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedEndTagOpenState(self):
+        data = self.stream.char()
+        if data in asciiLetters:
+            self.temporaryBuffer = data
+            self.state = self.scriptDataEscapedEndTagNameState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "</"})
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataEscapedEndTagNameState(self):
+        appropriate = self.currentToken and self.currentToken["name"].lower() == self.temporaryBuffer.lower()
+        data = self.stream.char()
+        if data in spaceCharacters and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.beforeAttributeNameState
+        elif data == "/" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.state = self.selfClosingStartTagState
+        elif data == ">" and appropriate:
+            self.currentToken = {"type": tokenTypes["EndTag"],
+                                 "name": self.temporaryBuffer,
+                                 "data": [], "selfClosing": False}
+            self.emitCurrentToken()
+            self.state = self.dataState
+        elif data in asciiLetters:
+            self.temporaryBuffer += data
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "</" + self.temporaryBuffer})
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataDoubleEscapeStartState(self):
+        data = self.stream.char()
+        if data in (spaceCharacters | frozenset(("/", ">"))):
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            if self.temporaryBuffer.lower() == "script":
+                self.state = self.scriptDataDoubleEscapedState
+            else:
+                self.state = self.scriptDataEscapedState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.temporaryBuffer += data
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataEscapedState
+        return True
+
+    def scriptDataDoubleEscapedState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataDoubleEscapedDashState
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+        return True
+
+    def scriptDataDoubleEscapedDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+            self.state = self.scriptDataDoubleEscapedDashDashState
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataDoubleEscapedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapedDashDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "-"})
+        elif data == "<":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "<"})
+            self.state = self.scriptDataDoubleEscapedLessThanSignState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": ">"})
+            self.state = self.scriptDataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": "\uFFFD"})
+            self.state = self.scriptDataDoubleEscapedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-script-in-script"})
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapedLessThanSignState(self):
+        data = self.stream.char()
+        if data == "/":
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": "/"})
+            self.temporaryBuffer = ""
+            self.state = self.scriptDataDoubleEscapeEndState
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def scriptDataDoubleEscapeEndState(self):
+        data = self.stream.char()
+        if data in (spaceCharacters | frozenset(("/", ">"))):
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            if self.temporaryBuffer.lower() == "script":
+                self.state = self.scriptDataEscapedState
+            else:
+                self.state = self.scriptDataDoubleEscapedState
+        elif data in asciiLetters:
+            self.tokenQueue.append({"type": tokenTypes["Characters"], "data": data})
+            self.temporaryBuffer += data
+        else:
+            self.stream.unget(data)
+            self.state = self.scriptDataDoubleEscapedState
+        return True
+
+    def beforeAttributeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data in asciiLetters:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data in ("'", '"', "=", "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "invalid-character-in-attribute-name"})
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"].append(["\uFFFD", ""])
+            self.state = self.attributeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-name-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        return True
+
+    def attributeNameState(self):
+        data = self.stream.char()
+        leavingThisState = True
+        emitToken = False
+        if data == "=":
+            self.state = self.beforeAttributeValueState
+        elif data in asciiLetters:
+            self.currentToken["data"][-1][0] += data +\
+                self.stream.charsUntil(asciiLetters, True)
+            leavingThisState = False
+        elif data == ">":
+            # XXX If we emit here the attributes are converted to a dict
+            # without being checked and when the code below runs we error
+            # because data is a dict not a list
+            emitToken = True
+        elif data in spaceCharacters:
+            self.state = self.afterAttributeNameState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][0] += "\uFFFD"
+            leavingThisState = False
+        elif data in ("'", '"', "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data":
+                                    "invalid-character-in-attribute-name"})
+            self.currentToken["data"][-1][0] += data
+            leavingThisState = False
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "eof-in-attribute-name"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][0] += data
+            leavingThisState = False
+
+        if leavingThisState:
+            # Attributes are not dropped at this stage. That happens when the
+            # start tag token is emitted so values can still be safely appended
+            # to attributes, but we do want to report the parse error in time.
+            self.currentToken["data"][-1][0] = (
+                self.currentToken["data"][-1][0].translate(asciiUpper2Lower))
+            for name, _ in self.currentToken["data"][:-1]:
+                if self.currentToken["data"][-1][0] == name:
+                    self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                            "duplicate-attribute"})
+                    break
+            # XXX Fix for above XXX
+            if emitToken:
+                self.emitCurrentToken()
+        return True
+
+    def afterAttributeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data == "=":
+            self.state = self.beforeAttributeValueState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data in asciiLetters:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"].append(["\uFFFD", ""])
+            self.state = self.attributeNameState
+        elif data in ("'", '"', "<"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "invalid-character-after-attribute-name"})
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-end-of-tag-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"].append([data, ""])
+            self.state = self.attributeNameState
+        return True
+
+    def beforeAttributeValueState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.stream.charsUntil(spaceCharacters, True)
+        elif data == "\"":
+            self.state = self.attributeValueDoubleQuotedState
+        elif data == "&":
+            self.state = self.attributeValueUnQuotedState
+            self.stream.unget(data)
+        elif data == "'":
+            self.state = self.attributeValueSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-value-but-got-right-bracket"})
+            self.emitCurrentToken()
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+            self.state = self.attributeValueUnQuotedState
+        elif data in ("=", "<", "`"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "equals-in-unquoted-attribute-value"})
+            self.currentToken["data"][-1][1] += data
+            self.state = self.attributeValueUnQuotedState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-attribute-value-but-got-eof"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data
+            self.state = self.attributeValueUnQuotedState
+        return True
+
+    def attributeValueDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterAttributeValueState
+        elif data == "&":
+            self.processEntityInAttribute('"')
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-double-quote"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data +\
+                self.stream.charsUntil(("\"", "&", "\u0000"))
+        return True
+
+    def attributeValueSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterAttributeValueState
+        elif data == "&":
+            self.processEntityInAttribute("'")
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-single-quote"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data +\
+                self.stream.charsUntil(("'", "&", "\u0000"))
+        return True
+
+    def attributeValueUnQuotedState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeAttributeNameState
+        elif data == "&":
+            self.processEntityInAttribute(">")
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data in ('"', "'", "=", "<", "`"):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-in-unquoted-attribute-value"})
+            self.currentToken["data"][-1][1] += data
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"][-1][1] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-attribute-value-no-quotes"})
+            self.state = self.dataState
+        else:
+            self.currentToken["data"][-1][1] += data + self.stream.charsUntil(
+                frozenset(("&", ">", '"', "'", "=", "<", "`", "\u0000")) | spaceCharacters)
+        return True
+
+    def afterAttributeValueState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeAttributeNameState
+        elif data == ">":
+            self.emitCurrentToken()
+        elif data == "/":
+            self.state = self.selfClosingStartTagState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-EOF-after-attribute-value"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-after-attribute-value"})
+            self.stream.unget(data)
+            self.state = self.beforeAttributeNameState
+        return True
+
+    def selfClosingStartTagState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.currentToken["selfClosing"] = True
+            self.emitCurrentToken()
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data":
+                                    "unexpected-EOF-after-solidus-in-tag"})
+            self.stream.unget(data)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-character-after-solidus-in-tag"})
+            self.stream.unget(data)
+            self.state = self.beforeAttributeNameState
+        return True
+
+    def bogusCommentState(self):
+        # Make a new comment token and give it as value all the characters
+        # until the first > or EOF (charsUntil checks for EOF automatically)
+        # and emit it.
+        data = self.stream.charsUntil(">")
+        data = data.replace("\u0000", "\uFFFD")
+        self.tokenQueue.append(
+            {"type": tokenTypes["Comment"], "data": data})
+
+        # Eat the character directly after the bogus comment which is either a
+        # ">" or an EOF.
+        self.stream.char()
+        self.state = self.dataState
+        return True
+
+    def markupDeclarationOpenState(self):
+        charStack = [self.stream.char()]
+        if charStack[-1] == "-":
+            charStack.append(self.stream.char())
+            if charStack[-1] == "-":
+                self.currentToken = {"type": tokenTypes["Comment"], "data": ""}
+                self.state = self.commentStartState
+                return True
+        elif charStack[-1] in ('d', 'D'):
+            matched = True
+            for expected in (('o', 'O'), ('c', 'C'), ('t', 'T'),
+                             ('y', 'Y'), ('p', 'P'), ('e', 'E')):
+                charStack.append(self.stream.char())
+                if charStack[-1] not in expected:
+                    matched = False
+                    break
+            if matched:
+                self.currentToken = {"type": tokenTypes["Doctype"],
+                                     "name": "",
+                                     "publicId": None, "systemId": None,
+                                     "correct": True}
+                self.state = self.doctypeState
+                return True
+        elif (charStack[-1] == "[" and
+              self.parser is not None and
+              self.parser.tree.openElements and
+              self.parser.tree.openElements[-1].namespace != self.parser.tree.defaultNamespace):
+            matched = True
+            for expected in ["C", "D", "A", "T", "A", "["]:
+                charStack.append(self.stream.char())
+                if charStack[-1] != expected:
+                    matched = False
+                    break
+            if matched:
+                self.state = self.cdataSectionState
+                return True
+
+        self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                "expected-dashes-or-doctype"})
+
+        while charStack:
+            self.stream.unget(charStack.pop())
+        self.state = self.bogusCommentState
+        return True
+
+    def commentStartState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentStartDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "incorrect-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += data
+            self.state = self.commentState
+        return True
+
+    def commentStartDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "-\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "incorrect-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "-" + data
+            self.state = self.commentState
+        return True
+
+    def commentState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "\uFFFD"
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "eof-in-comment"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += data + \
+                self.stream.charsUntil(("-", "\u0000"))
+        return True
+
+    def commentEndDashState(self):
+        data = self.stream.char()
+        if data == "-":
+            self.state = self.commentEndState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "-\uFFFD"
+            self.state = self.commentState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-end-dash"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "-" + data
+            self.state = self.commentState
+        return True
+
+    def commentEndState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "--\uFFFD"
+            self.state = self.commentState
+        elif data == "!":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-bang-after-double-dash-in-comment"})
+            self.state = self.commentEndBangState
+        elif data == "-":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-dash-after-double-dash-in-comment"})
+            self.currentToken["data"] += data
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-double-dash"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            # XXX
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-comment"})
+            self.currentToken["data"] += "--" + data
+            self.state = self.commentState
+        return True
+
+    def commentEndBangState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "-":
+            self.currentToken["data"] += "--!"
+            self.state = self.commentEndDashState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["data"] += "--!\uFFFD"
+            self.state = self.commentState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-comment-end-bang-state"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["data"] += "--!" + data
+            self.state = self.commentState
+        return True
+
+    def doctypeState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-eof"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "need-space-after-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeNameState
+        return True
+
+    def beforeDoctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-right-bracket"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] = "\uFFFD"
+            self.state = self.doctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-doctype-name-but-got-eof"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["name"] = data
+            self.state = self.doctypeNameState
+        return True
+
+    def doctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.state = self.afterDoctypeNameState
+        elif data == ">":
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["name"] += "\uFFFD"
+            self.state = self.doctypeNameState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype-name"})
+            self.currentToken["correct"] = False
+            self.currentToken["name"] = self.currentToken["name"].translate(asciiUpper2Lower)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["name"] += data
+        return True
+
+    def afterDoctypeNameState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.currentToken["correct"] = False
+            self.stream.unget(data)
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            if data in ("p", "P"):
+                matched = True
+                for expected in (("u", "U"), ("b", "B"), ("l", "L"),
+                                 ("i", "I"), ("c", "C")):
+                    data = self.stream.char()
+                    if data not in expected:
+                        matched = False
+                        break
+                if matched:
+                    self.state = self.afterDoctypePublicKeywordState
+                    return True
+            elif data in ("s", "S"):
+                matched = True
+                for expected in (("y", "Y"), ("s", "S"), ("t", "T"),
+                                 ("e", "E"), ("m", "M")):
+                    data = self.stream.char()
+                    if data not in expected:
+                        matched = False
+                        break
+                if matched:
+                    self.state = self.afterDoctypeSystemKeywordState
+                    return True
+
+            # All the characters read before the current 'data' will be
+            # [a-zA-Z], so they're garbage in the bogus doctype and can be
+            # discarded; only the latest character might be '>' or EOF
+            # and needs to be ungetted
+            self.stream.unget(data)
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "expected-space-or-right-bracket-in-doctype", "datavars":
+                                    {"data": data}})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+
+        return True
+
+    def afterDoctypePublicKeywordState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypePublicIdentifierState
+        elif data in ("'", '"'):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypePublicIdentifierState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.stream.unget(data)
+            self.state = self.beforeDoctypePublicIdentifierState
+        return True
+
+    def beforeDoctypePublicIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == "\"":
+            self.currentToken["publicId"] = ""
+            self.state = self.doctypePublicIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["publicId"] = ""
+            self.state = self.doctypePublicIdentifierSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def doctypePublicIdentifierDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterDoctypePublicIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["publicId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["publicId"] += data
+        return True
+
+    def doctypePublicIdentifierSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterDoctypePublicIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["publicId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["publicId"] += data
+        return True
+
+    def afterDoctypePublicIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.betweenDoctypePublicAndSystemIdentifiersState
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == '"':
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def betweenDoctypePublicAndSystemIdentifiersState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data == '"':
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data == EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def afterDoctypeSystemKeywordState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            self.state = self.beforeDoctypeSystemIdentifierState
+        elif data in ("'", '"'):
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeSystemIdentifierState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.stream.unget(data)
+            self.state = self.beforeDoctypeSystemIdentifierState
+        return True
+
+    def beforeDoctypeSystemIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == "\"":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierDoubleQuotedState
+        elif data == "'":
+            self.currentToken["systemId"] = ""
+            self.state = self.doctypeSystemIdentifierSingleQuotedState
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.currentToken["correct"] = False
+            self.state = self.bogusDoctypeState
+        return True
+
+    def doctypeSystemIdentifierDoubleQuotedState(self):
+        data = self.stream.char()
+        if data == "\"":
+            self.state = self.afterDoctypeSystemIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["systemId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["systemId"] += data
+        return True
+
+    def doctypeSystemIdentifierSingleQuotedState(self):
+        data = self.stream.char()
+        if data == "'":
+            self.state = self.afterDoctypeSystemIdentifierState
+        elif data == "\u0000":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                    "data": "invalid-codepoint"})
+            self.currentToken["systemId"] += "\uFFFD"
+        elif data == ">":
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-end-of-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.currentToken["systemId"] += data
+        return True
+
+    def afterDoctypeSystemIdentifierState(self):
+        data = self.stream.char()
+        if data in spaceCharacters:
+            pass
+        elif data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "eof-in-doctype"})
+            self.currentToken["correct"] = False
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
+                                    "unexpected-char-in-doctype"})
+            self.state = self.bogusDoctypeState
+        return True
+
+    def bogusDoctypeState(self):
+        data = self.stream.char()
+        if data == ">":
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        elif data is EOF:
+            # XXX EMIT
+            self.stream.unget(data)
+            self.tokenQueue.append(self.currentToken)
+            self.state = self.dataState
+        else:
+            pass
+        return True
+
+    def cdataSectionState(self):
+        data = []
+        while True:
+            data.append(self.stream.charsUntil("]"))
+            data.append(self.stream.charsUntil(">"))
+            char = self.stream.char()
+            if char == EOF:
+                break
+            else:
+                assert char == ">"
+                if data[-1][-2:] == "]]":
+                    data[-1] = data[-1][:-2]
+                    break
+                else:
+                    data.append(char)
+
+        data = "".join(data)  # pylint:disable=redefined-variable-type
+        # Deal with null here rather than in the parser
+        nullCount = data.count("\u0000")
+        if nullCount > 0:
+            for _ in range(nullCount):
+                self.tokenQueue.append({"type": tokenTypes["ParseError"],
+                                        "data": "invalid-codepoint"})
+            data = data.replace("\u0000", "\uFFFD")
+        if data:
+            self.tokenQueue.append({"type": tokenTypes["Characters"],
+                                    "data": data})
+        self.state = self.dataState
+        return True
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/__init__.py
new file mode 100644
index 0000000..a5ba4bf
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/__init__.py
@@ -0,0 +1,14 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from .py import Trie as PyTrie
+
+Trie = PyTrie
+
+# pylint:disable=wrong-import-position
+try:
+    from .datrie import Trie as DATrie
+except ImportError:
+    pass
+else:
+    Trie = DATrie
+# pylint:enable=wrong-import-position
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/_base.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/_base.py
new file mode 100644
index 0000000..25eece4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/_base.py
@@ -0,0 +1,38 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from collections import Mapping
+
+
+class Trie(Mapping):
+    """Abstract base class for tries"""
+
+    def keys(self, prefix=None):
+        # pylint:disable=arguments-differ
+        keys = super(Trie, self).keys()
+
+        if prefix is None:
+            return set(keys)
+
+        # Python 2.6: no set comprehensions
+        return set([x for x in keys if x.startswith(prefix)])
+
+    def has_keys_with_prefix(self, prefix):
+        for key in self.keys():
+            if key.startswith(prefix):
+                return True
+
+        return False
+
+    def longest_prefix(self, prefix):
+        if prefix in self:
+            return prefix
+
+        for i in range(1, len(prefix) + 1):
+            if prefix[:-i] in self:
+                return prefix[:-i]
+
+        raise KeyError(prefix)
+
+    def longest_prefix_item(self, prefix):
+        lprefix = self.longest_prefix(prefix)
+        return (lprefix, self[lprefix])
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/datrie.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/datrie.py
new file mode 100644
index 0000000..e2e5f86
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/datrie.py
@@ -0,0 +1,44 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from datrie import Trie as DATrie
+from pip._vendor.six import text_type
+
+from ._base import Trie as ABCTrie
+
+
+class Trie(ABCTrie):
+    def __init__(self, data):
+        chars = set()
+        for key in data.keys():
+            if not isinstance(key, text_type):
+                raise TypeError("All keys must be strings")
+            for char in key:
+                chars.add(char)
+
+        self._data = DATrie("".join(chars))
+        for key, value in data.items():
+            self._data[key] = value
+
+    def __contains__(self, key):
+        return key in self._data
+
+    def __len__(self):
+        return len(self._data)
+
+    def __iter__(self):
+        raise NotImplementedError()
+
+    def __getitem__(self, key):
+        return self._data[key]
+
+    def keys(self, prefix=None):
+        return self._data.keys(prefix)
+
+    def has_keys_with_prefix(self, prefix):
+        return self._data.has_keys_with_prefix(prefix)
+
+    def longest_prefix(self, prefix):
+        return self._data.longest_prefix(prefix)
+
+    def longest_prefix_item(self, prefix):
+        return self._data.longest_prefix_item(prefix)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/py.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/py.py
new file mode 100644
index 0000000..c178b21
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_trie/py.py
@@ -0,0 +1,67 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from bisect import bisect_left
+
+from ._base import Trie as ABCTrie
+
+
+class Trie(ABCTrie):
+    def __init__(self, data):
+        if not all(isinstance(x, text_type) for x in data.keys()):
+            raise TypeError("All keys must be strings")
+
+        self._data = data
+        self._keys = sorted(data.keys())
+        self._cachestr = ""
+        self._cachepoints = (0, len(data))
+
+    def __contains__(self, key):
+        return key in self._data
+
+    def __len__(self):
+        return len(self._data)
+
+    def __iter__(self):
+        return iter(self._data)
+
+    def __getitem__(self, key):
+        return self._data[key]
+
+    def keys(self, prefix=None):
+        if prefix is None or prefix == "" or not self._keys:
+            return set(self._keys)
+
+        if prefix.startswith(self._cachestr):
+            lo, hi = self._cachepoints
+            start = i = bisect_left(self._keys, prefix, lo, hi)
+        else:
+            start = i = bisect_left(self._keys, prefix)
+
+        keys = set()
+        if start == len(self._keys):
+            return keys
+
+        while self._keys[i].startswith(prefix):
+            keys.add(self._keys[i])
+            i += 1
+
+        self._cachestr = prefix
+        self._cachepoints = (start, i)
+
+        return keys
+
+    def has_keys_with_prefix(self, prefix):
+        if prefix in self._data:
+            return True
+
+        if prefix.startswith(self._cachestr):
+            lo, hi = self._cachepoints
+            i = bisect_left(self._keys, prefix, lo, hi)
+        else:
+            i = bisect_left(self._keys, prefix)
+
+        if i == len(self._keys):
+            return False
+
+        return self._keys[i].startswith(prefix)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_utils.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_utils.py
new file mode 100644
index 0000000..55d6747
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/_utils.py
@@ -0,0 +1,127 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import sys
+from types import ModuleType
+
+from pip._vendor.six import text_type
+
+try:
+    import xml.etree.cElementTree as default_etree
+except ImportError:
+    import xml.etree.ElementTree as default_etree
+
+
+__all__ = ["default_etree", "MethodDispatcher", "isSurrogatePair",
+           "surrogatePairToCodepoint", "moduleFactoryFactory",
+           "supports_lone_surrogates", "PY27"]
+
+
+PY27 = sys.version_info[0] == 2 and sys.version_info[1] >= 7
+
+# Platforms not supporting lone surrogates (\uD800-\uDFFF) should be
+# caught by the below test. In general this would be any platform
+# using UTF-16 as its encoding of unicode strings, such as
+# Jython. This is because UTF-16 itself is based on the use of such
+# surrogates, and there is no mechanism to further escape such
+# escapes.
+try:
+    _x = eval('"\\uD800"')  # pylint:disable=eval-used
+    if not isinstance(_x, text_type):
+        # We need this with u"" because of http://bugs.jython.org/issue2039
+        _x = eval('u"\\uD800"')  # pylint:disable=eval-used
+        assert isinstance(_x, text_type)
+except:  # pylint:disable=bare-except
+    supports_lone_surrogates = False
+else:
+    supports_lone_surrogates = True
+
+
+class MethodDispatcher(dict):
+    """Dict with 2 special properties:
+
+    On initiation, keys that are lists, sets or tuples are converted to
+    multiple keys so accessing any one of the items in the original
+    list-like object returns the matching value
+
+    md = MethodDispatcher({("foo", "bar"):"baz"})
+    md["foo"] == "baz"
+
+    A default value which can be set through the default attribute.
+    """
+
+    def __init__(self, items=()):
+        # Using _dictEntries instead of directly assigning to self is about
+        # twice as fast. Please do careful performance testing before changing
+        # anything here.
+        _dictEntries = []
+        for name, value in items:
+            if isinstance(name, (list, tuple, frozenset, set)):
+                for item in name:
+                    _dictEntries.append((item, value))
+            else:
+                _dictEntries.append((name, value))
+        dict.__init__(self, _dictEntries)
+        assert len(self) == len(_dictEntries)
+        self.default = None
+
+    def __getitem__(self, key):
+        return dict.get(self, key, self.default)
+
+
+# Some utility functions to deal with weirdness around UCS2 vs UCS4
+# python builds
+
+def isSurrogatePair(data):
+    return (len(data) == 2 and
+            ord(data[0]) >= 0xD800 and ord(data[0]) <= 0xDBFF and
+            ord(data[1]) >= 0xDC00 and ord(data[1]) <= 0xDFFF)
+
+
+def surrogatePairToCodepoint(data):
+    char_val = (0x10000 + (ord(data[0]) - 0xD800) * 0x400 +
+                (ord(data[1]) - 0xDC00))
+    return char_val
+
+# Module Factory Factory (no, this isn't Java, I know)
+# Here to stop this being duplicated all over the place.
+
+
+def moduleFactoryFactory(factory):
+    moduleCache = {}
+
+    def moduleFactory(baseModule, *args, **kwargs):
+        if isinstance(ModuleType.__name__, type("")):
+            name = "_%s_factory" % baseModule.__name__
+        else:
+            name = b"_%s_factory" % baseModule.__name__
+
+        kwargs_tuple = tuple(kwargs.items())
+
+        try:
+            return moduleCache[name][args][kwargs_tuple]
+        except KeyError:
+            mod = ModuleType(name)
+            objs = factory(baseModule, *args, **kwargs)
+            mod.__dict__.update(objs)
+            if "name" not in moduleCache:
+                moduleCache[name] = {}
+            if "args" not in moduleCache[name]:
+                moduleCache[name][args] = {}
+            if "kwargs" not in moduleCache[name][args]:
+                moduleCache[name][args][kwargs_tuple] = {}
+            moduleCache[name][args][kwargs_tuple] = mod
+            return mod
+
+    return moduleFactory
+
+
+def memoize(func):
+    cache = {}
+
+    def wrapped(*args, **kwargs):
+        key = (tuple(args), tuple(kwargs.items()))
+        if key not in cache:
+            cache[key] = func(*args, **kwargs)
+        return cache[key]
+
+    return wrapped
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/constants.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/constants.py
new file mode 100644
index 0000000..9e7541d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/constants.py
@@ -0,0 +1,2945 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import string
+
+EOF = None
+
+E = {
+    "null-character":
+        "Null character in input stream, replaced with U+FFFD.",
+    "invalid-codepoint":
+        "Invalid codepoint in stream.",
+    "incorrectly-placed-solidus":
+        "Solidus (/) incorrectly placed in tag.",
+    "incorrect-cr-newline-entity":
+        "Incorrect CR newline entity, replaced with LF.",
+    "illegal-windows-1252-entity":
+        "Entity used with illegal number (windows-1252 reference).",
+    "cant-convert-numeric-entity":
+        "Numeric entity couldn't be converted to character "
+        "(codepoint U+%(charAsInt)08x).",
+    "illegal-codepoint-for-numeric-entity":
+        "Numeric entity represents an illegal codepoint: "
+        "U+%(charAsInt)08x.",
+    "numeric-entity-without-semicolon":
+        "Numeric entity didn't end with ';'.",
+    "expected-numeric-entity-but-got-eof":
+        "Numeric entity expected. Got end of file instead.",
+    "expected-numeric-entity":
+        "Numeric entity expected but none found.",
+    "named-entity-without-semicolon":
+        "Named entity didn't end with ';'.",
+    "expected-named-entity":
+        "Named entity expected. Got none.",
+    "attributes-in-end-tag":
+        "End tag contains unexpected attributes.",
+    'self-closing-flag-on-end-tag':
+        "End tag contains unexpected self-closing flag.",
+    "expected-tag-name-but-got-right-bracket":
+        "Expected tag name. Got '>' instead.",
+    "expected-tag-name-but-got-question-mark":
+        "Expected tag name. Got '?' instead. (HTML doesn't "
+        "support processing instructions.)",
+    "expected-tag-name":
+        "Expected tag name. Got something else instead",
+    "expected-closing-tag-but-got-right-bracket":
+        "Expected closing tag. Got '>' instead. Ignoring '</>'.",
+    "expected-closing-tag-but-got-eof":
+        "Expected closing tag. Unexpected end of file.",
+    "expected-closing-tag-but-got-char":
+        "Expected closing tag. Unexpected character '%(data)s' found.",
+    "eof-in-tag-name":
+        "Unexpected end of file in the tag name.",
+    "expected-attribute-name-but-got-eof":
+        "Unexpected end of file. Expected attribute name instead.",
+    "eof-in-attribute-name":
+        "Unexpected end of file in attribute name.",
+    "invalid-character-in-attribute-name":
+        "Invalid character in attribute name",
+    "duplicate-attribute":
+        "Dropped duplicate attribute on tag.",
+    "expected-end-of-tag-name-but-got-eof":
+        "Unexpected end of file. Expected = or end of tag.",
+    "expected-attribute-value-but-got-eof":
+        "Unexpected end of file. Expected attribute value.",
+    "expected-attribute-value-but-got-right-bracket":
+        "Expected attribute value. Got '>' instead.",
+    'equals-in-unquoted-attribute-value':
+        "Unexpected = in unquoted attribute",
+    'unexpected-character-in-unquoted-attribute-value':
+        "Unexpected character in unquoted attribute",
+    "invalid-character-after-attribute-name":
+        "Unexpected character after attribute name.",
+    "unexpected-character-after-attribute-value":
+        "Unexpected character after attribute value.",
+    "eof-in-attribute-value-double-quote":
+        "Unexpected end of file in attribute value (\").",
+    "eof-in-attribute-value-single-quote":
+        "Unexpected end of file in attribute value (').",
+    "eof-in-attribute-value-no-quotes":
+        "Unexpected end of file in attribute value.",
+    "unexpected-EOF-after-solidus-in-tag":
+        "Unexpected end of file in tag. Expected >",
+    "unexpected-character-after-solidus-in-tag":
+        "Unexpected character after / in tag. Expected >",
+    "expected-dashes-or-doctype":
+        "Expected '--' or 'DOCTYPE'. Not found.",
+    "unexpected-bang-after-double-dash-in-comment":
+        "Unexpected ! after -- in comment",
+    "unexpected-space-after-double-dash-in-comment":
+        "Unexpected space after -- in comment",
+    "incorrect-comment":
+        "Incorrect comment.",
+    "eof-in-comment":
+        "Unexpected end of file in comment.",
+    "eof-in-comment-end-dash":
+        "Unexpected end of file in comment (-)",
+    "unexpected-dash-after-double-dash-in-comment":
+        "Unexpected '-' after '--' found in comment.",
+    "eof-in-comment-double-dash":
+        "Unexpected end of file in comment (--).",
+    "eof-in-comment-end-space-state":
+        "Unexpected end of file in comment.",
+    "eof-in-comment-end-bang-state":
+        "Unexpected end of file in comment.",
+    "unexpected-char-in-comment":
+        "Unexpected character in comment found.",
+    "need-space-after-doctype":
+        "No space after literal string 'DOCTYPE'.",
+    "expected-doctype-name-but-got-right-bracket":
+        "Unexpected > character. Expected DOCTYPE name.",
+    "expected-doctype-name-but-got-eof":
+        "Unexpected end of file. Expected DOCTYPE name.",
+    "eof-in-doctype-name":
+        "Unexpected end of file in DOCTYPE name.",
+    "eof-in-doctype":
+        "Unexpected end of file in DOCTYPE.",
+    "expected-space-or-right-bracket-in-doctype":
+        "Expected space or '>'. Got '%(data)s'",
+    "unexpected-end-of-doctype":
+        "Unexpected end of DOCTYPE.",
+    "unexpected-char-in-doctype":
+        "Unexpected character in DOCTYPE.",
+    "eof-in-innerhtml":
+        "XXX innerHTML EOF",
+    "unexpected-doctype":
+        "Unexpected DOCTYPE. Ignored.",
+    "non-html-root":
+        "html needs to be the first start tag.",
+    "expected-doctype-but-got-eof":
+        "Unexpected End of file. Expected DOCTYPE.",
+    "unknown-doctype":
+        "Erroneous DOCTYPE.",
+    "expected-doctype-but-got-chars":
+        "Unexpected non-space characters. Expected DOCTYPE.",
+    "expected-doctype-but-got-start-tag":
+        "Unexpected start tag (%(name)s). Expected DOCTYPE.",
+    "expected-doctype-but-got-end-tag":
+        "Unexpected end tag (%(name)s). Expected DOCTYPE.",
+    "end-tag-after-implied-root":
+        "Unexpected end tag (%(name)s) after the (implied) root element.",
+    "expected-named-closing-tag-but-got-eof":
+        "Unexpected end of file. Expected end tag (%(name)s).",
+    "two-heads-are-not-better-than-one":
+        "Unexpected start tag head in existing head. Ignored.",
+    "unexpected-end-tag":
+        "Unexpected end tag (%(name)s). Ignored.",
+    "unexpected-start-tag-out-of-my-head":
+        "Unexpected start tag (%(name)s) that can be in head. Moved.",
+    "unexpected-start-tag":
+        "Unexpected start tag (%(name)s).",
+    "missing-end-tag":
+        "Missing end tag (%(name)s).",
+    "missing-end-tags":
+        "Missing end tags (%(name)s).",
+    "unexpected-start-tag-implies-end-tag":
+        "Unexpected start tag (%(startName)s) "
+        "implies end tag (%(endName)s).",
+    "unexpected-start-tag-treated-as":
+        "Unexpected start tag (%(originalName)s). Treated as %(newName)s.",
+    "deprecated-tag":
+        "Unexpected start tag %(name)s. Don't use it!",
+    "unexpected-start-tag-ignored":
+        "Unexpected start tag %(name)s. Ignored.",
+    "expected-one-end-tag-but-got-another":
+        "Unexpected end tag (%(gotName)s). "
+        "Missing end tag (%(expectedName)s).",
+    "end-tag-too-early":
+        "End tag (%(name)s) seen too early. Expected other end tag.",
+    "end-tag-too-early-named":
+        "Unexpected end tag (%(gotName)s). Expected end tag (%(expectedName)s).",
+    "end-tag-too-early-ignored":
+        "End tag (%(name)s) seen too early. Ignored.",
+    "adoption-agency-1.1":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 1 of the adoption agency algorithm.",
+    "adoption-agency-1.2":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 2 of the adoption agency algorithm.",
+    "adoption-agency-1.3":
+        "End tag (%(name)s) violates step 1, "
+        "paragraph 3 of the adoption agency algorithm.",
+    "adoption-agency-4.4":
+        "End tag (%(name)s) violates step 4, "
+        "paragraph 4 of the adoption agency algorithm.",
+    "unexpected-end-tag-treated-as":
+        "Unexpected end tag (%(originalName)s). Treated as %(newName)s.",
+    "no-end-tag":
+        "This element (%(name)s) has no end tag.",
+    "unexpected-implied-end-tag-in-table":
+        "Unexpected implied end tag (%(name)s) in the table phase.",
+    "unexpected-implied-end-tag-in-table-body":
+        "Unexpected implied end tag (%(name)s) in the table body phase.",
+    "unexpected-char-implies-table-voodoo":
+        "Unexpected non-space characters in "
+        "table context caused voodoo mode.",
+    "unexpected-hidden-input-in-table":
+        "Unexpected input with type hidden in table context.",
+    "unexpected-form-in-table":
+        "Unexpected form in table context.",
+    "unexpected-start-tag-implies-table-voodoo":
+        "Unexpected start tag (%(name)s) in "
+        "table context caused voodoo mode.",
+    "unexpected-end-tag-implies-table-voodoo":
+        "Unexpected end tag (%(name)s) in "
+        "table context caused voodoo mode.",
+    "unexpected-cell-in-table-body":
+        "Unexpected table cell start tag (%(name)s) "
+        "in the table body phase.",
+    "unexpected-cell-end-tag":
+        "Got table cell end tag (%(name)s) "
+        "while required end tags are missing.",
+    "unexpected-end-tag-in-table-body":
+        "Unexpected end tag (%(name)s) in the table body phase. Ignored.",
+    "unexpected-implied-end-tag-in-table-row":
+        "Unexpected implied end tag (%(name)s) in the table row phase.",
+    "unexpected-end-tag-in-table-row":
+        "Unexpected end tag (%(name)s) in the table row phase. Ignored.",
+    "unexpected-select-in-select":
+        "Unexpected select start tag in the select phase "
+        "treated as select end tag.",
+    "unexpected-input-in-select":
+        "Unexpected input start tag in the select phase.",
+    "unexpected-start-tag-in-select":
+        "Unexpected start tag token (%(name)s in the select phase. "
+        "Ignored.",
+    "unexpected-end-tag-in-select":
+        "Unexpected end tag (%(name)s) in the select phase. Ignored.",
+    "unexpected-table-element-start-tag-in-select-in-table":
+        "Unexpected table element start tag (%(name)s) in the select in table phase.",
+    "unexpected-table-element-end-tag-in-select-in-table":
+        "Unexpected table element end tag (%(name)s) in the select in table phase.",
+    "unexpected-char-after-body":
+        "Unexpected non-space characters in the after body phase.",
+    "unexpected-start-tag-after-body":
+        "Unexpected start tag token (%(name)s)"
+        " in the after body phase.",
+    "unexpected-end-tag-after-body":
+        "Unexpected end tag token (%(name)s)"
+        " in the after body phase.",
+    "unexpected-char-in-frameset":
+        "Unexpected characters in the frameset phase. Characters ignored.",
+    "unexpected-start-tag-in-frameset":
+        "Unexpected start tag token (%(name)s)"
+        " in the frameset phase. Ignored.",
+    "unexpected-frameset-in-frameset-innerhtml":
+        "Unexpected end tag token (frameset) "
+        "in the frameset phase (innerHTML).",
+    "unexpected-end-tag-in-frameset":
+        "Unexpected end tag token (%(name)s)"
+        " in the frameset phase. Ignored.",
+    "unexpected-char-after-frameset":
+        "Unexpected non-space characters in the "
+        "after frameset phase. Ignored.",
+    "unexpected-start-tag-after-frameset":
+        "Unexpected start tag (%(name)s)"
+        " in the after frameset phase. Ignored.",
+    "unexpected-end-tag-after-frameset":
+        "Unexpected end tag (%(name)s)"
+        " in the after frameset phase. Ignored.",
+    "unexpected-end-tag-after-body-innerhtml":
+        "Unexpected end tag after body(innerHtml)",
+    "expected-eof-but-got-char":
+        "Unexpected non-space characters. Expected end of file.",
+    "expected-eof-but-got-start-tag":
+        "Unexpected start tag (%(name)s)"
+        ". Expected end of file.",
+    "expected-eof-but-got-end-tag":
+        "Unexpected end tag (%(name)s)"
+        ". Expected end of file.",
+    "eof-in-table":
+        "Unexpected end of file. Expected table content.",
+    "eof-in-select":
+        "Unexpected end of file. Expected select content.",
+    "eof-in-frameset":
+        "Unexpected end of file. Expected frameset content.",
+    "eof-in-script-in-script":
+        "Unexpected end of file. Expected script content.",
+    "eof-in-foreign-lands":
+        "Unexpected end of file. Expected foreign content",
+    "non-void-element-with-trailing-solidus":
+        "Trailing solidus not allowed on element %(name)s",
+    "unexpected-html-element-in-foreign-content":
+        "Element %(name)s not allowed in a non-html context",
+    "unexpected-end-tag-before-html":
+        "Unexpected end tag (%(name)s) before html.",
+    "unexpected-inhead-noscript-tag":
+        "Element %(name)s not allowed in a inhead-noscript context",
+    "eof-in-head-noscript":
+        "Unexpected end of file. Expected inhead-noscript content",
+    "char-in-head-noscript":
+        "Unexpected non-space character. Expected inhead-noscript content",
+    "XXX-undefined-error":
+        "Undefined error (this sucks and should be fixed)",
+}
+
+namespaces = {
+    "html": "http://www.w3.org/1999/xhtml",
+    "mathml": "http://www.w3.org/1998/Math/MathML",
+    "svg": "http://www.w3.org/2000/svg",
+    "xlink": "http://www.w3.org/1999/xlink",
+    "xml": "http://www.w3.org/XML/1998/namespace",
+    "xmlns": "http://www.w3.org/2000/xmlns/"
+}
+
+scopingElements = frozenset([
+    (namespaces["html"], "applet"),
+    (namespaces["html"], "caption"),
+    (namespaces["html"], "html"),
+    (namespaces["html"], "marquee"),
+    (namespaces["html"], "object"),
+    (namespaces["html"], "table"),
+    (namespaces["html"], "td"),
+    (namespaces["html"], "th"),
+    (namespaces["mathml"], "mi"),
+    (namespaces["mathml"], "mo"),
+    (namespaces["mathml"], "mn"),
+    (namespaces["mathml"], "ms"),
+    (namespaces["mathml"], "mtext"),
+    (namespaces["mathml"], "annotation-xml"),
+    (namespaces["svg"], "foreignObject"),
+    (namespaces["svg"], "desc"),
+    (namespaces["svg"], "title"),
+])
+
+formattingElements = frozenset([
+    (namespaces["html"], "a"),
+    (namespaces["html"], "b"),
+    (namespaces["html"], "big"),
+    (namespaces["html"], "code"),
+    (namespaces["html"], "em"),
+    (namespaces["html"], "font"),
+    (namespaces["html"], "i"),
+    (namespaces["html"], "nobr"),
+    (namespaces["html"], "s"),
+    (namespaces["html"], "small"),
+    (namespaces["html"], "strike"),
+    (namespaces["html"], "strong"),
+    (namespaces["html"], "tt"),
+    (namespaces["html"], "u")
+])
+
+specialElements = frozenset([
+    (namespaces["html"], "address"),
+    (namespaces["html"], "applet"),
+    (namespaces["html"], "area"),
+    (namespaces["html"], "article"),
+    (namespaces["html"], "aside"),
+    (namespaces["html"], "base"),
+    (namespaces["html"], "basefont"),
+    (namespaces["html"], "bgsound"),
+    (namespaces["html"], "blockquote"),
+    (namespaces["html"], "body"),
+    (namespaces["html"], "br"),
+    (namespaces["html"], "button"),
+    (namespaces["html"], "caption"),
+    (namespaces["html"], "center"),
+    (namespaces["html"], "col"),
+    (namespaces["html"], "colgroup"),
+    (namespaces["html"], "command"),
+    (namespaces["html"], "dd"),
+    (namespaces["html"], "details"),
+    (namespaces["html"], "dir"),
+    (namespaces["html"], "div"),
+    (namespaces["html"], "dl"),
+    (namespaces["html"], "dt"),
+    (namespaces["html"], "embed"),
+    (namespaces["html"], "fieldset"),
+    (namespaces["html"], "figure"),
+    (namespaces["html"], "footer"),
+    (namespaces["html"], "form"),
+    (namespaces["html"], "frame"),
+    (namespaces["html"], "frameset"),
+    (namespaces["html"], "h1"),
+    (namespaces["html"], "h2"),
+    (namespaces["html"], "h3"),
+    (namespaces["html"], "h4"),
+    (namespaces["html"], "h5"),
+    (namespaces["html"], "h6"),
+    (namespaces["html"], "head"),
+    (namespaces["html"], "header"),
+    (namespaces["html"], "hr"),
+    (namespaces["html"], "html"),
+    (namespaces["html"], "iframe"),
+    # Note that image is commented out in the spec as "this isn't an
+    # element that can end up on the stack, so it doesn't matter,"
+    (namespaces["html"], "image"),
+    (namespaces["html"], "img"),
+    (namespaces["html"], "input"),
+    (namespaces["html"], "isindex"),
+    (namespaces["html"], "li"),
+    (namespaces["html"], "link"),
+    (namespaces["html"], "listing"),
+    (namespaces["html"], "marquee"),
+    (namespaces["html"], "menu"),
+    (namespaces["html"], "meta"),
+    (namespaces["html"], "nav"),
+    (namespaces["html"], "noembed"),
+    (namespaces["html"], "noframes"),
+    (namespaces["html"], "noscript"),
+    (namespaces["html"], "object"),
+    (namespaces["html"], "ol"),
+    (namespaces["html"], "p"),
+    (namespaces["html"], "param"),
+    (namespaces["html"], "plaintext"),
+    (namespaces["html"], "pre"),
+    (namespaces["html"], "script"),
+    (namespaces["html"], "section"),
+    (namespaces["html"], "select"),
+    (namespaces["html"], "style"),
+    (namespaces["html"], "table"),
+    (namespaces["html"], "tbody"),
+    (namespaces["html"], "td"),
+    (namespaces["html"], "textarea"),
+    (namespaces["html"], "tfoot"),
+    (namespaces["html"], "th"),
+    (namespaces["html"], "thead"),
+    (namespaces["html"], "title"),
+    (namespaces["html"], "tr"),
+    (namespaces["html"], "ul"),
+    (namespaces["html"], "wbr"),
+    (namespaces["html"], "xmp"),
+    (namespaces["svg"], "foreignObject")
+])
+
+htmlIntegrationPointElements = frozenset([
+    (namespaces["mathml"], "annotaion-xml"),
+    (namespaces["svg"], "foreignObject"),
+    (namespaces["svg"], "desc"),
+    (namespaces["svg"], "title")
+])
+
+mathmlTextIntegrationPointElements = frozenset([
+    (namespaces["mathml"], "mi"),
+    (namespaces["mathml"], "mo"),
+    (namespaces["mathml"], "mn"),
+    (namespaces["mathml"], "ms"),
+    (namespaces["mathml"], "mtext")
+])
+
+adjustSVGAttributes = {
+    "attributename": "attributeName",
+    "attributetype": "attributeType",
+    "basefrequency": "baseFrequency",
+    "baseprofile": "baseProfile",
+    "calcmode": "calcMode",
+    "clippathunits": "clipPathUnits",
+    "contentscripttype": "contentScriptType",
+    "contentstyletype": "contentStyleType",
+    "diffuseconstant": "diffuseConstant",
+    "edgemode": "edgeMode",
+    "externalresourcesrequired": "externalResourcesRequired",
+    "filterres": "filterRes",
+    "filterunits": "filterUnits",
+    "glyphref": "glyphRef",
+    "gradienttransform": "gradientTransform",
+    "gradientunits": "gradientUnits",
+    "kernelmatrix": "kernelMatrix",
+    "kernelunitlength": "kernelUnitLength",
+    "keypoints": "keyPoints",
+    "keysplines": "keySplines",
+    "keytimes": "keyTimes",
+    "lengthadjust": "lengthAdjust",
+    "limitingconeangle": "limitingConeAngle",
+    "markerheight": "markerHeight",
+    "markerunits": "markerUnits",
+    "markerwidth": "markerWidth",
+    "maskcontentunits": "maskContentUnits",
+    "maskunits": "maskUnits",
+    "numoctaves": "numOctaves",
+    "pathlength": "pathLength",
+    "patterncontentunits": "patternContentUnits",
+    "patterntransform": "patternTransform",
+    "patternunits": "patternUnits",
+    "pointsatx": "pointsAtX",
+    "pointsaty": "pointsAtY",
+    "pointsatz": "pointsAtZ",
+    "preservealpha": "preserveAlpha",
+    "preserveaspectratio": "preserveAspectRatio",
+    "primitiveunits": "primitiveUnits",
+    "refx": "refX",
+    "refy": "refY",
+    "repeatcount": "repeatCount",
+    "repeatdur": "repeatDur",
+    "requiredextensions": "requiredExtensions",
+    "requiredfeatures": "requiredFeatures",
+    "specularconstant": "specularConstant",
+    "specularexponent": "specularExponent",
+    "spreadmethod": "spreadMethod",
+    "startoffset": "startOffset",
+    "stddeviation": "stdDeviation",
+    "stitchtiles": "stitchTiles",
+    "surfacescale": "surfaceScale",
+    "systemlanguage": "systemLanguage",
+    "tablevalues": "tableValues",
+    "targetx": "targetX",
+    "targety": "targetY",
+    "textlength": "textLength",
+    "viewbox": "viewBox",
+    "viewtarget": "viewTarget",
+    "xchannelselector": "xChannelSelector",
+    "ychannelselector": "yChannelSelector",
+    "zoomandpan": "zoomAndPan"
+}
+
+adjustMathMLAttributes = {"definitionurl": "definitionURL"}
+
+adjustForeignAttributes = {
+    "xlink:actuate": ("xlink", "actuate", namespaces["xlink"]),
+    "xlink:arcrole": ("xlink", "arcrole", namespaces["xlink"]),
+    "xlink:href": ("xlink", "href", namespaces["xlink"]),
+    "xlink:role": ("xlink", "role", namespaces["xlink"]),
+    "xlink:show": ("xlink", "show", namespaces["xlink"]),
+    "xlink:title": ("xlink", "title", namespaces["xlink"]),
+    "xlink:type": ("xlink", "type", namespaces["xlink"]),
+    "xml:base": ("xml", "base", namespaces["xml"]),
+    "xml:lang": ("xml", "lang", namespaces["xml"]),
+    "xml:space": ("xml", "space", namespaces["xml"]),
+    "xmlns": (None, "xmlns", namespaces["xmlns"]),
+    "xmlns:xlink": ("xmlns", "xlink", namespaces["xmlns"])
+}
+
+unadjustForeignAttributes = dict([((ns, local), qname) for qname, (prefix, local, ns) in
+                                  adjustForeignAttributes.items()])
+
+spaceCharacters = frozenset([
+    "\t",
+    "\n",
+    "\u000C",
+    " ",
+    "\r"
+])
+
+tableInsertModeElements = frozenset([
+    "table",
+    "tbody",
+    "tfoot",
+    "thead",
+    "tr"
+])
+
+asciiLowercase = frozenset(string.ascii_lowercase)
+asciiUppercase = frozenset(string.ascii_uppercase)
+asciiLetters = frozenset(string.ascii_letters)
+digits = frozenset(string.digits)
+hexDigits = frozenset(string.hexdigits)
+
+asciiUpper2Lower = dict([(ord(c), ord(c.lower()))
+                         for c in string.ascii_uppercase])
+
+# Heading elements need to be ordered
+headingElements = (
+    "h1",
+    "h2",
+    "h3",
+    "h4",
+    "h5",
+    "h6"
+)
+
+voidElements = frozenset([
+    "base",
+    "command",
+    "event-source",
+    "link",
+    "meta",
+    "hr",
+    "br",
+    "img",
+    "embed",
+    "param",
+    "area",
+    "col",
+    "input",
+    "source",
+    "track"
+])
+
+cdataElements = frozenset(['title', 'textarea'])
+
+rcdataElements = frozenset([
+    'style',
+    'script',
+    'xmp',
+    'iframe',
+    'noembed',
+    'noframes',
+    'noscript'
+])
+
+booleanAttributes = {
+    "": frozenset(["irrelevant"]),
+    "style": frozenset(["scoped"]),
+    "img": frozenset(["ismap"]),
+    "audio": frozenset(["autoplay", "controls"]),
+    "video": frozenset(["autoplay", "controls"]),
+    "script": frozenset(["defer", "async"]),
+    "details": frozenset(["open"]),
+    "datagrid": frozenset(["multiple", "disabled"]),
+    "command": frozenset(["hidden", "disabled", "checked", "default"]),
+    "hr": frozenset(["noshade"]),
+    "menu": frozenset(["autosubmit"]),
+    "fieldset": frozenset(["disabled", "readonly"]),
+    "option": frozenset(["disabled", "readonly", "selected"]),
+    "optgroup": frozenset(["disabled", "readonly"]),
+    "button": frozenset(["disabled", "autofocus"]),
+    "input": frozenset(["disabled", "readonly", "required", "autofocus", "checked", "ismap"]),
+    "select": frozenset(["disabled", "readonly", "autofocus", "multiple"]),
+    "output": frozenset(["disabled", "readonly"]),
+}
+
+# entitiesWindows1252 has to be _ordered_ and needs to have an index. It
+# therefore can't be a frozenset.
+entitiesWindows1252 = (
+    8364,   # 0x80  0x20AC  EURO SIGN
+    65533,  # 0x81          UNDEFINED
+    8218,   # 0x82  0x201A  SINGLE LOW-9 QUOTATION MARK
+    402,    # 0x83  0x0192  LATIN SMALL LETTER F WITH HOOK
+    8222,   # 0x84  0x201E  DOUBLE LOW-9 QUOTATION MARK
+    8230,   # 0x85  0x2026  HORIZONTAL ELLIPSIS
+    8224,   # 0x86  0x2020  DAGGER
+    8225,   # 0x87  0x2021  DOUBLE DAGGER
+    710,    # 0x88  0x02C6  MODIFIER LETTER CIRCUMFLEX ACCENT
+    8240,   # 0x89  0x2030  PER MILLE SIGN
+    352,    # 0x8A  0x0160  LATIN CAPITAL LETTER S WITH CARON
+    8249,   # 0x8B  0x2039  SINGLE LEFT-POINTING ANGLE QUOTATION MARK
+    338,    # 0x8C  0x0152  LATIN CAPITAL LIGATURE OE
+    65533,  # 0x8D          UNDEFINED
+    381,    # 0x8E  0x017D  LATIN CAPITAL LETTER Z WITH CARON
+    65533,  # 0x8F          UNDEFINED
+    65533,  # 0x90          UNDEFINED
+    8216,   # 0x91  0x2018  LEFT SINGLE QUOTATION MARK
+    8217,   # 0x92  0x2019  RIGHT SINGLE QUOTATION MARK
+    8220,   # 0x93  0x201C  LEFT DOUBLE QUOTATION MARK
+    8221,   # 0x94  0x201D  RIGHT DOUBLE QUOTATION MARK
+    8226,   # 0x95  0x2022  BULLET
+    8211,   # 0x96  0x2013  EN DASH
+    8212,   # 0x97  0x2014  EM DASH
+    732,    # 0x98  0x02DC  SMALL TILDE
+    8482,   # 0x99  0x2122  TRADE MARK SIGN
+    353,    # 0x9A  0x0161  LATIN SMALL LETTER S WITH CARON
+    8250,   # 0x9B  0x203A  SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
+    339,    # 0x9C  0x0153  LATIN SMALL LIGATURE OE
+    65533,  # 0x9D          UNDEFINED
+    382,    # 0x9E  0x017E  LATIN SMALL LETTER Z WITH CARON
+    376     # 0x9F  0x0178  LATIN CAPITAL LETTER Y WITH DIAERESIS
+)
+
+xmlEntities = frozenset(['lt;', 'gt;', 'amp;', 'apos;', 'quot;'])
+
+entities = {
+    "AElig": "\xc6",
+    "AElig;": "\xc6",
+    "AMP": "&",
+    "AMP;": "&",
+    "Aacute": "\xc1",
+    "Aacute;": "\xc1",
+    "Abreve;": "\u0102",
+    "Acirc": "\xc2",
+    "Acirc;": "\xc2",
+    "Acy;": "\u0410",
+    "Afr;": "\U0001d504",
+    "Agrave": "\xc0",
+    "Agrave;": "\xc0",
+    "Alpha;": "\u0391",
+    "Amacr;": "\u0100",
+    "And;": "\u2a53",
+    "Aogon;": "\u0104",
+    "Aopf;": "\U0001d538",
+    "ApplyFunction;": "\u2061",
+    "Aring": "\xc5",
+    "Aring;": "\xc5",
+    "Ascr;": "\U0001d49c",
+    "Assign;": "\u2254",
+    "Atilde": "\xc3",
+    "Atilde;": "\xc3",
+    "Auml": "\xc4",
+    "Auml;": "\xc4",
+    "Backslash;": "\u2216",
+    "Barv;": "\u2ae7",
+    "Barwed;": "\u2306",
+    "Bcy;": "\u0411",
+    "Because;": "\u2235",
+    "Bernoullis;": "\u212c",
+    "Beta;": "\u0392",
+    "Bfr;": "\U0001d505",
+    "Bopf;": "\U0001d539",
+    "Breve;": "\u02d8",
+    "Bscr;": "\u212c",
+    "Bumpeq;": "\u224e",
+    "CHcy;": "\u0427",
+    "COPY": "\xa9",
+    "COPY;": "\xa9",
+    "Cacute;": "\u0106",
+    "Cap;": "\u22d2",
+    "CapitalDifferentialD;": "\u2145",
+    "Cayleys;": "\u212d",
+    "Ccaron;": "\u010c",
+    "Ccedil": "\xc7",
+    "Ccedil;": "\xc7",
+    "Ccirc;": "\u0108",
+    "Cconint;": "\u2230",
+    "Cdot;": "\u010a",
+    "Cedilla;": "\xb8",
+    "CenterDot;": "\xb7",
+    "Cfr;": "\u212d",
+    "Chi;": "\u03a7",
+    "CircleDot;": "\u2299",
+    "CircleMinus;": "\u2296",
+    "CirclePlus;": "\u2295",
+    "CircleTimes;": "\u2297",
+    "ClockwiseContourIntegral;": "\u2232",
+    "CloseCurlyDoubleQuote;": "\u201d",
+    "CloseCurlyQuote;": "\u2019",
+    "Colon;": "\u2237",
+    "Colone;": "\u2a74",
+    "Congruent;": "\u2261",
+    "Conint;": "\u222f",
+    "ContourIntegral;": "\u222e",
+    "Copf;": "\u2102",
+    "Coproduct;": "\u2210",
+    "CounterClockwiseContourIntegral;": "\u2233",
+    "Cross;": "\u2a2f",
+    "Cscr;": "\U0001d49e",
+    "Cup;": "\u22d3",
+    "CupCap;": "\u224d",
+    "DD;": "\u2145",
+    "DDotrahd;": "\u2911",
+    "DJcy;": "\u0402",
+    "DScy;": "\u0405",
+    "DZcy;": "\u040f",
+    "Dagger;": "\u2021",
+    "Darr;": "\u21a1",
+    "Dashv;": "\u2ae4",
+    "Dcaron;": "\u010e",
+    "Dcy;": "\u0414",
+    "Del;": "\u2207",
+    "Delta;": "\u0394",
+    "Dfr;": "\U0001d507",
+    "DiacriticalAcute;": "\xb4",
+    "DiacriticalDot;": "\u02d9",
+    "DiacriticalDoubleAcute;": "\u02dd",
+    "DiacriticalGrave;": "`",
+    "DiacriticalTilde;": "\u02dc",
+    "Diamond;": "\u22c4",
+    "DifferentialD;": "\u2146",
+    "Dopf;": "\U0001d53b",
+    "Dot;": "\xa8",
+    "DotDot;": "\u20dc",
+    "DotEqual;": "\u2250",
+    "DoubleContourIntegral;": "\u222f",
+    "DoubleDot;": "\xa8",
+    "DoubleDownArrow;": "\u21d3",
+    "DoubleLeftArrow;": "\u21d0",
+    "DoubleLeftRightArrow;": "\u21d4",
+    "DoubleLeftTee;": "\u2ae4",
+    "DoubleLongLeftArrow;": "\u27f8",
+    "DoubleLongLeftRightArrow;": "\u27fa",
+    "DoubleLongRightArrow;": "\u27f9",
+    "DoubleRightArrow;": "\u21d2",
+    "DoubleRightTee;": "\u22a8",
+    "DoubleUpArrow;": "\u21d1",
+    "DoubleUpDownArrow;": "\u21d5",
+    "DoubleVerticalBar;": "\u2225",
+    "DownArrow;": "\u2193",
+    "DownArrowBar;": "\u2913",
+    "DownArrowUpArrow;": "\u21f5",
+    "DownBreve;": "\u0311",
+    "DownLeftRightVector;": "\u2950",
+    "DownLeftTeeVector;": "\u295e",
+    "DownLeftVector;": "\u21bd",
+    "DownLeftVectorBar;": "\u2956",
+    "DownRightTeeVector;": "\u295f",
+    "DownRightVector;": "\u21c1",
+    "DownRightVectorBar;": "\u2957",
+    "DownTee;": "\u22a4",
+    "DownTeeArrow;": "\u21a7",
+    "Downarrow;": "\u21d3",
+    "Dscr;": "\U0001d49f",
+    "Dstrok;": "\u0110",
+    "ENG;": "\u014a",
+    "ETH": "\xd0",
+    "ETH;": "\xd0",
+    "Eacute": "\xc9",
+    "Eacute;": "\xc9",
+    "Ecaron;": "\u011a",
+    "Ecirc": "\xca",
+    "Ecirc;": "\xca",
+    "Ecy;": "\u042d",
+    "Edot;": "\u0116",
+    "Efr;": "\U0001d508",
+    "Egrave": "\xc8",
+    "Egrave;": "\xc8",
+    "Element;": "\u2208",
+    "Emacr;": "\u0112",
+    "EmptySmallSquare;": "\u25fb",
+    "EmptyVerySmallSquare;": "\u25ab",
+    "Eogon;": "\u0118",
+    "Eopf;": "\U0001d53c",
+    "Epsilon;": "\u0395",
+    "Equal;": "\u2a75",
+    "EqualTilde;": "\u2242",
+    "Equilibrium;": "\u21cc",
+    "Escr;": "\u2130",
+    "Esim;": "\u2a73",
+    "Eta;": "\u0397",
+    "Euml": "\xcb",
+    "Euml;": "\xcb",
+    "Exists;": "\u2203",
+    "ExponentialE;": "\u2147",
+    "Fcy;": "\u0424",
+    "Ffr;": "\U0001d509",
+    "FilledSmallSquare;": "\u25fc",
+    "FilledVerySmallSquare;": "\u25aa",
+    "Fopf;": "\U0001d53d",
+    "ForAll;": "\u2200",
+    "Fouriertrf;": "\u2131",
+    "Fscr;": "\u2131",
+    "GJcy;": "\u0403",
+    "GT": ">",
+    "GT;": ">",
+    "Gamma;": "\u0393",
+    "Gammad;": "\u03dc",
+    "Gbreve;": "\u011e",
+    "Gcedil;": "\u0122",
+    "Gcirc;": "\u011c",
+    "Gcy;": "\u0413",
+    "Gdot;": "\u0120",
+    "Gfr;": "\U0001d50a",
+    "Gg;": "\u22d9",
+    "Gopf;": "\U0001d53e",
+    "GreaterEqual;": "\u2265",
+    "GreaterEqualLess;": "\u22db",
+    "GreaterFullEqual;": "\u2267",
+    "GreaterGreater;": "\u2aa2",
+    "GreaterLess;": "\u2277",
+    "GreaterSlantEqual;": "\u2a7e",
+    "GreaterTilde;": "\u2273",
+    "Gscr;": "\U0001d4a2",
+    "Gt;": "\u226b",
+    "HARDcy;": "\u042a",
+    "Hacek;": "\u02c7",
+    "Hat;": "^",
+    "Hcirc;": "\u0124",
+    "Hfr;": "\u210c",
+    "HilbertSpace;": "\u210b",
+    "Hopf;": "\u210d",
+    "HorizontalLine;": "\u2500",
+    "Hscr;": "\u210b",
+    "Hstrok;": "\u0126",
+    "HumpDownHump;": "\u224e",
+    "HumpEqual;": "\u224f",
+    "IEcy;": "\u0415",
+    "IJlig;": "\u0132",
+    "IOcy;": "\u0401",
+    "Iacute": "\xcd",
+    "Iacute;": "\xcd",
+    "Icirc": "\xce",
+    "Icirc;": "\xce",
+    "Icy;": "\u0418",
+    "Idot;": "\u0130",
+    "Ifr;": "\u2111",
+    "Igrave": "\xcc",
+    "Igrave;": "\xcc",
+    "Im;": "\u2111",
+    "Imacr;": "\u012a",
+    "ImaginaryI;": "\u2148",
+    "Implies;": "\u21d2",
+    "Int;": "\u222c",
+    "Integral;": "\u222b",
+    "Intersection;": "\u22c2",
+    "InvisibleComma;": "\u2063",
+    "InvisibleTimes;": "\u2062",
+    "Iogon;": "\u012e",
+    "Iopf;": "\U0001d540",
+    "Iota;": "\u0399",
+    "Iscr;": "\u2110",
+    "Itilde;": "\u0128",
+    "Iukcy;": "\u0406",
+    "Iuml": "\xcf",
+    "Iuml;": "\xcf",
+    "Jcirc;": "\u0134",
+    "Jcy;": "\u0419",
+    "Jfr;": "\U0001d50d",
+    "Jopf;": "\U0001d541",
+    "Jscr;": "\U0001d4a5",
+    "Jsercy;": "\u0408",
+    "Jukcy;": "\u0404",
+    "KHcy;": "\u0425",
+    "KJcy;": "\u040c",
+    "Kappa;": "\u039a",
+    "Kcedil;": "\u0136",
+    "Kcy;": "\u041a",
+    "Kfr;": "\U0001d50e",
+    "Kopf;": "\U0001d542",
+    "Kscr;": "\U0001d4a6",
+    "LJcy;": "\u0409",
+    "LT": "<",
+    "LT;": "<",
+    "Lacute;": "\u0139",
+    "Lambda;": "\u039b",
+    "Lang;": "\u27ea",
+    "Laplacetrf;": "\u2112",
+    "Larr;": "\u219e",
+    "Lcaron;": "\u013d",
+    "Lcedil;": "\u013b",
+    "Lcy;": "\u041b",
+    "LeftAngleBracket;": "\u27e8",
+    "LeftArrow;": "\u2190",
+    "LeftArrowBar;": "\u21e4",
+    "LeftArrowRightArrow;": "\u21c6",
+    "LeftCeiling;": "\u2308",
+    "LeftDoubleBracket;": "\u27e6",
+    "LeftDownTeeVector;": "\u2961",
+    "LeftDownVector;": "\u21c3",
+    "LeftDownVectorBar;": "\u2959",
+    "LeftFloor;": "\u230a",
+    "LeftRightArrow;": "\u2194",
+    "LeftRightVector;": "\u294e",
+    "LeftTee;": "\u22a3",
+    "LeftTeeArrow;": "\u21a4",
+    "LeftTeeVector;": "\u295a",
+    "LeftTriangle;": "\u22b2",
+    "LeftTriangleBar;": "\u29cf",
+    "LeftTriangleEqual;": "\u22b4",
+    "LeftUpDownVector;": "\u2951",
+    "LeftUpTeeVector;": "\u2960",
+    "LeftUpVector;": "\u21bf",
+    "LeftUpVectorBar;": "\u2958",
+    "LeftVector;": "\u21bc",
+    "LeftVectorBar;": "\u2952",
+    "Leftarrow;": "\u21d0",
+    "Leftrightarrow;": "\u21d4",
+    "LessEqualGreater;": "\u22da",
+    "LessFullEqual;": "\u2266",
+    "LessGreater;": "\u2276",
+    "LessLess;": "\u2aa1",
+    "LessSlantEqual;": "\u2a7d",
+    "LessTilde;": "\u2272",
+    "Lfr;": "\U0001d50f",
+    "Ll;": "\u22d8",
+    "Lleftarrow;": "\u21da",
+    "Lmidot;": "\u013f",
+    "LongLeftArrow;": "\u27f5",
+    "LongLeftRightArrow;": "\u27f7",
+    "LongRightArrow;": "\u27f6",
+    "Longleftarrow;": "\u27f8",
+    "Longleftrightarrow;": "\u27fa",
+    "Longrightarrow;": "\u27f9",
+    "Lopf;": "\U0001d543",
+    "LowerLeftArrow;": "\u2199",
+    "LowerRightArrow;": "\u2198",
+    "Lscr;": "\u2112",
+    "Lsh;": "\u21b0",
+    "Lstrok;": "\u0141",
+    "Lt;": "\u226a",
+    "Map;": "\u2905",
+    "Mcy;": "\u041c",
+    "MediumSpace;": "\u205f",
+    "Mellintrf;": "\u2133",
+    "Mfr;": "\U0001d510",
+    "MinusPlus;": "\u2213",
+    "Mopf;": "\U0001d544",
+    "Mscr;": "\u2133",
+    "Mu;": "\u039c",
+    "NJcy;": "\u040a",
+    "Nacute;": "\u0143",
+    "Ncaron;": "\u0147",
+    "Ncedil;": "\u0145",
+    "Ncy;": "\u041d",
+    "NegativeMediumSpace;": "\u200b",
+    "NegativeThickSpace;": "\u200b",
+    "NegativeThinSpace;": "\u200b",
+    "NegativeVeryThinSpace;": "\u200b",
+    "NestedGreaterGreater;": "\u226b",
+    "NestedLessLess;": "\u226a",
+    "NewLine;": "\n",
+    "Nfr;": "\U0001d511",
+    "NoBreak;": "\u2060",
+    "NonBreakingSpace;": "\xa0",
+    "Nopf;": "\u2115",
+    "Not;": "\u2aec",
+    "NotCongruent;": "\u2262",
+    "NotCupCap;": "\u226d",
+    "NotDoubleVerticalBar;": "\u2226",
+    "NotElement;": "\u2209",
+    "NotEqual;": "\u2260",
+    "NotEqualTilde;": "\u2242\u0338",
+    "NotExists;": "\u2204",
+    "NotGreater;": "\u226f",
+    "NotGreaterEqual;": "\u2271",
+    "NotGreaterFullEqual;": "\u2267\u0338",
+    "NotGreaterGreater;": "\u226b\u0338",
+    "NotGreaterLess;": "\u2279",
+    "NotGreaterSlantEqual;": "\u2a7e\u0338",
+    "NotGreaterTilde;": "\u2275",
+    "NotHumpDownHump;": "\u224e\u0338",
+    "NotHumpEqual;": "\u224f\u0338",
+    "NotLeftTriangle;": "\u22ea",
+    "NotLeftTriangleBar;": "\u29cf\u0338",
+    "NotLeftTriangleEqual;": "\u22ec",
+    "NotLess;": "\u226e",
+    "NotLessEqual;": "\u2270",
+    "NotLessGreater;": "\u2278",
+    "NotLessLess;": "\u226a\u0338",
+    "NotLessSlantEqual;": "\u2a7d\u0338",
+    "NotLessTilde;": "\u2274",
+    "NotNestedGreaterGreater;": "\u2aa2\u0338",
+    "NotNestedLessLess;": "\u2aa1\u0338",
+    "NotPrecedes;": "\u2280",
+    "NotPrecedesEqual;": "\u2aaf\u0338",
+    "NotPrecedesSlantEqual;": "\u22e0",
+    "NotReverseElement;": "\u220c",
+    "NotRightTriangle;": "\u22eb",
+    "NotRightTriangleBar;": "\u29d0\u0338",
+    "NotRightTriangleEqual;": "\u22ed",
+    "NotSquareSubset;": "\u228f\u0338",
+    "NotSquareSubsetEqual;": "\u22e2",
+    "NotSquareSuperset;": "\u2290\u0338",
+    "NotSquareSupersetEqual;": "\u22e3",
+    "NotSubset;": "\u2282\u20d2",
+    "NotSubsetEqual;": "\u2288",
+    "NotSucceeds;": "\u2281",
+    "NotSucceedsEqual;": "\u2ab0\u0338",
+    "NotSucceedsSlantEqual;": "\u22e1",
+    "NotSucceedsTilde;": "\u227f\u0338",
+    "NotSuperset;": "\u2283\u20d2",
+    "NotSupersetEqual;": "\u2289",
+    "NotTilde;": "\u2241",
+    "NotTildeEqual;": "\u2244",
+    "NotTildeFullEqual;": "\u2247",
+    "NotTildeTilde;": "\u2249",
+    "NotVerticalBar;": "\u2224",
+    "Nscr;": "\U0001d4a9",
+    "Ntilde": "\xd1",
+    "Ntilde;": "\xd1",
+    "Nu;": "\u039d",
+    "OElig;": "\u0152",
+    "Oacute": "\xd3",
+    "Oacute;": "\xd3",
+    "Ocirc": "\xd4",
+    "Ocirc;": "\xd4",
+    "Ocy;": "\u041e",
+    "Odblac;": "\u0150",
+    "Ofr;": "\U0001d512",
+    "Ograve": "\xd2",
+    "Ograve;": "\xd2",
+    "Omacr;": "\u014c",
+    "Omega;": "\u03a9",
+    "Omicron;": "\u039f",
+    "Oopf;": "\U0001d546",
+    "OpenCurlyDoubleQuote;": "\u201c",
+    "OpenCurlyQuote;": "\u2018",
+    "Or;": "\u2a54",
+    "Oscr;": "\U0001d4aa",
+    "Oslash": "\xd8",
+    "Oslash;": "\xd8",
+    "Otilde": "\xd5",
+    "Otilde;": "\xd5",
+    "Otimes;": "\u2a37",
+    "Ouml": "\xd6",
+    "Ouml;": "\xd6",
+    "OverBar;": "\u203e",
+    "OverBrace;": "\u23de",
+    "OverBracket;": "\u23b4",
+    "OverParenthesis;": "\u23dc",
+    "PartialD;": "\u2202",
+    "Pcy;": "\u041f",
+    "Pfr;": "\U0001d513",
+    "Phi;": "\u03a6",
+    "Pi;": "\u03a0",
+    "PlusMinus;": "\xb1",
+    "Poincareplane;": "\u210c",
+    "Popf;": "\u2119",
+    "Pr;": "\u2abb",
+    "Precedes;": "\u227a",
+    "PrecedesEqual;": "\u2aaf",
+    "PrecedesSlantEqual;": "\u227c",
+    "PrecedesTilde;": "\u227e",
+    "Prime;": "\u2033",
+    "Product;": "\u220f",
+    "Proportion;": "\u2237",
+    "Proportional;": "\u221d",
+    "Pscr;": "\U0001d4ab",
+    "Psi;": "\u03a8",
+    "QUOT": "\"",
+    "QUOT;": "\"",
+    "Qfr;": "\U0001d514",
+    "Qopf;": "\u211a",
+    "Qscr;": "\U0001d4ac",
+    "RBarr;": "\u2910",
+    "REG": "\xae",
+    "REG;": "\xae",
+    "Racute;": "\u0154",
+    "Rang;": "\u27eb",
+    "Rarr;": "\u21a0",
+    "Rarrtl;": "\u2916",
+    "Rcaron;": "\u0158",
+    "Rcedil;": "\u0156",
+    "Rcy;": "\u0420",
+    "Re;": "\u211c",
+    "ReverseElement;": "\u220b",
+    "ReverseEquilibrium;": "\u21cb",
+    "ReverseUpEquilibrium;": "\u296f",
+    "Rfr;": "\u211c",
+    "Rho;": "\u03a1",
+    "RightAngleBracket;": "\u27e9",
+    "RightArrow;": "\u2192",
+    "RightArrowBar;": "\u21e5",
+    "RightArrowLeftArrow;": "\u21c4",
+    "RightCeiling;": "\u2309",
+    "RightDoubleBracket;": "\u27e7",
+    "RightDownTeeVector;": "\u295d",
+    "RightDownVector;": "\u21c2",
+    "RightDownVectorBar;": "\u2955",
+    "RightFloor;": "\u230b",
+    "RightTee;": "\u22a2",
+    "RightTeeArrow;": "\u21a6",
+    "RightTeeVector;": "\u295b",
+    "RightTriangle;": "\u22b3",
+    "RightTriangleBar;": "\u29d0",
+    "RightTriangleEqual;": "\u22b5",
+    "RightUpDownVector;": "\u294f",
+    "RightUpTeeVector;": "\u295c",
+    "RightUpVector;": "\u21be",
+    "RightUpVectorBar;": "\u2954",
+    "RightVector;": "\u21c0",
+    "RightVectorBar;": "\u2953",
+    "Rightarrow;": "\u21d2",
+    "Ropf;": "\u211d",
+    "RoundImplies;": "\u2970",
+    "Rrightarrow;": "\u21db",
+    "Rscr;": "\u211b",
+    "Rsh;": "\u21b1",
+    "RuleDelayed;": "\u29f4",
+    "SHCHcy;": "\u0429",
+    "SHcy;": "\u0428",
+    "SOFTcy;": "\u042c",
+    "Sacute;": "\u015a",
+    "Sc;": "\u2abc",
+    "Scaron;": "\u0160",
+    "Scedil;": "\u015e",
+    "Scirc;": "\u015c",
+    "Scy;": "\u0421",
+    "Sfr;": "\U0001d516",
+    "ShortDownArrow;": "\u2193",
+    "ShortLeftArrow;": "\u2190",
+    "ShortRightArrow;": "\u2192",
+    "ShortUpArrow;": "\u2191",
+    "Sigma;": "\u03a3",
+    "SmallCircle;": "\u2218",
+    "Sopf;": "\U0001d54a",
+    "Sqrt;": "\u221a",
+    "Square;": "\u25a1",
+    "SquareIntersection;": "\u2293",
+    "SquareSubset;": "\u228f",
+    "SquareSubsetEqual;": "\u2291",
+    "SquareSuperset;": "\u2290",
+    "SquareSupersetEqual;": "\u2292",
+    "SquareUnion;": "\u2294",
+    "Sscr;": "\U0001d4ae",
+    "Star;": "\u22c6",
+    "Sub;": "\u22d0",
+    "Subset;": "\u22d0",
+    "SubsetEqual;": "\u2286",
+    "Succeeds;": "\u227b",
+    "SucceedsEqual;": "\u2ab0",
+    "SucceedsSlantEqual;": "\u227d",
+    "SucceedsTilde;": "\u227f",
+    "SuchThat;": "\u220b",
+    "Sum;": "\u2211",
+    "Sup;": "\u22d1",
+    "Superset;": "\u2283",
+    "SupersetEqual;": "\u2287",
+    "Supset;": "\u22d1",
+    "THORN": "\xde",
+    "THORN;": "\xde",
+    "TRADE;": "\u2122",
+    "TSHcy;": "\u040b",
+    "TScy;": "\u0426",
+    "Tab;": "\t",
+    "Tau;": "\u03a4",
+    "Tcaron;": "\u0164",
+    "Tcedil;": "\u0162",
+    "Tcy;": "\u0422",
+    "Tfr;": "\U0001d517",
+    "Therefore;": "\u2234",
+    "Theta;": "\u0398",
+    "ThickSpace;": "\u205f\u200a",
+    "ThinSpace;": "\u2009",
+    "Tilde;": "\u223c",
+    "TildeEqual;": "\u2243",
+    "TildeFullEqual;": "\u2245",
+    "TildeTilde;": "\u2248",
+    "Topf;": "\U0001d54b",
+    "TripleDot;": "\u20db",
+    "Tscr;": "\U0001d4af",
+    "Tstrok;": "\u0166",
+    "Uacute": "\xda",
+    "Uacute;": "\xda",
+    "Uarr;": "\u219f",
+    "Uarrocir;": "\u2949",
+    "Ubrcy;": "\u040e",
+    "Ubreve;": "\u016c",
+    "Ucirc": "\xdb",
+    "Ucirc;": "\xdb",
+    "Ucy;": "\u0423",
+    "Udblac;": "\u0170",
+    "Ufr;": "\U0001d518",
+    "Ugrave": "\xd9",
+    "Ugrave;": "\xd9",
+    "Umacr;": "\u016a",
+    "UnderBar;": "_",
+    "UnderBrace;": "\u23df",
+    "UnderBracket;": "\u23b5",
+    "UnderParenthesis;": "\u23dd",
+    "Union;": "\u22c3",
+    "UnionPlus;": "\u228e",
+    "Uogon;": "\u0172",
+    "Uopf;": "\U0001d54c",
+    "UpArrow;": "\u2191",
+    "UpArrowBar;": "\u2912",
+    "UpArrowDownArrow;": "\u21c5",
+    "UpDownArrow;": "\u2195",
+    "UpEquilibrium;": "\u296e",
+    "UpTee;": "\u22a5",
+    "UpTeeArrow;": "\u21a5",
+    "Uparrow;": "\u21d1",
+    "Updownarrow;": "\u21d5",
+    "UpperLeftArrow;": "\u2196",
+    "UpperRightArrow;": "\u2197",
+    "Upsi;": "\u03d2",
+    "Upsilon;": "\u03a5",
+    "Uring;": "\u016e",
+    "Uscr;": "\U0001d4b0",
+    "Utilde;": "\u0168",
+    "Uuml": "\xdc",
+    "Uuml;": "\xdc",
+    "VDash;": "\u22ab",
+    "Vbar;": "\u2aeb",
+    "Vcy;": "\u0412",
+    "Vdash;": "\u22a9",
+    "Vdashl;": "\u2ae6",
+    "Vee;": "\u22c1",
+    "Verbar;": "\u2016",
+    "Vert;": "\u2016",
+    "VerticalBar;": "\u2223",
+    "VerticalLine;": "|",
+    "VerticalSeparator;": "\u2758",
+    "VerticalTilde;": "\u2240",
+    "VeryThinSpace;": "\u200a",
+    "Vfr;": "\U0001d519",
+    "Vopf;": "\U0001d54d",
+    "Vscr;": "\U0001d4b1",
+    "Vvdash;": "\u22aa",
+    "Wcirc;": "\u0174",
+    "Wedge;": "\u22c0",
+    "Wfr;": "\U0001d51a",
+    "Wopf;": "\U0001d54e",
+    "Wscr;": "\U0001d4b2",
+    "Xfr;": "\U0001d51b",
+    "Xi;": "\u039e",
+    "Xopf;": "\U0001d54f",
+    "Xscr;": "\U0001d4b3",
+    "YAcy;": "\u042f",
+    "YIcy;": "\u0407",
+    "YUcy;": "\u042e",
+    "Yacute": "\xdd",
+    "Yacute;": "\xdd",
+    "Ycirc;": "\u0176",
+    "Ycy;": "\u042b",
+    "Yfr;": "\U0001d51c",
+    "Yopf;": "\U0001d550",
+    "Yscr;": "\U0001d4b4",
+    "Yuml;": "\u0178",
+    "ZHcy;": "\u0416",
+    "Zacute;": "\u0179",
+    "Zcaron;": "\u017d",
+    "Zcy;": "\u0417",
+    "Zdot;": "\u017b",
+    "ZeroWidthSpace;": "\u200b",
+    "Zeta;": "\u0396",
+    "Zfr;": "\u2128",
+    "Zopf;": "\u2124",
+    "Zscr;": "\U0001d4b5",
+    "aacute": "\xe1",
+    "aacute;": "\xe1",
+    "abreve;": "\u0103",
+    "ac;": "\u223e",
+    "acE;": "\u223e\u0333",
+    "acd;": "\u223f",
+    "acirc": "\xe2",
+    "acirc;": "\xe2",
+    "acute": "\xb4",
+    "acute;": "\xb4",
+    "acy;": "\u0430",
+    "aelig": "\xe6",
+    "aelig;": "\xe6",
+    "af;": "\u2061",
+    "afr;": "\U0001d51e",
+    "agrave": "\xe0",
+    "agrave;": "\xe0",
+    "alefsym;": "\u2135",
+    "aleph;": "\u2135",
+    "alpha;": "\u03b1",
+    "amacr;": "\u0101",
+    "amalg;": "\u2a3f",
+    "amp": "&",
+    "amp;": "&",
+    "and;": "\u2227",
+    "andand;": "\u2a55",
+    "andd;": "\u2a5c",
+    "andslope;": "\u2a58",
+    "andv;": "\u2a5a",
+    "ang;": "\u2220",
+    "ange;": "\u29a4",
+    "angle;": "\u2220",
+    "angmsd;": "\u2221",
+    "angmsdaa;": "\u29a8",
+    "angmsdab;": "\u29a9",
+    "angmsdac;": "\u29aa",
+    "angmsdad;": "\u29ab",
+    "angmsdae;": "\u29ac",
+    "angmsdaf;": "\u29ad",
+    "angmsdag;": "\u29ae",
+    "angmsdah;": "\u29af",
+    "angrt;": "\u221f",
+    "angrtvb;": "\u22be",
+    "angrtvbd;": "\u299d",
+    "angsph;": "\u2222",
+    "angst;": "\xc5",
+    "angzarr;": "\u237c",
+    "aogon;": "\u0105",
+    "aopf;": "\U0001d552",
+    "ap;": "\u2248",
+    "apE;": "\u2a70",
+    "apacir;": "\u2a6f",
+    "ape;": "\u224a",
+    "apid;": "\u224b",
+    "apos;": "'",
+    "approx;": "\u2248",
+    "approxeq;": "\u224a",
+    "aring": "\xe5",
+    "aring;": "\xe5",
+    "ascr;": "\U0001d4b6",
+    "ast;": "*",
+    "asymp;": "\u2248",
+    "asympeq;": "\u224d",
+    "atilde": "\xe3",
+    "atilde;": "\xe3",
+    "auml": "\xe4",
+    "auml;": "\xe4",
+    "awconint;": "\u2233",
+    "awint;": "\u2a11",
+    "bNot;": "\u2aed",
+    "backcong;": "\u224c",
+    "backepsilon;": "\u03f6",
+    "backprime;": "\u2035",
+    "backsim;": "\u223d",
+    "backsimeq;": "\u22cd",
+    "barvee;": "\u22bd",
+    "barwed;": "\u2305",
+    "barwedge;": "\u2305",
+    "bbrk;": "\u23b5",
+    "bbrktbrk;": "\u23b6",
+    "bcong;": "\u224c",
+    "bcy;": "\u0431",
+    "bdquo;": "\u201e",
+    "becaus;": "\u2235",
+    "because;": "\u2235",
+    "bemptyv;": "\u29b0",
+    "bepsi;": "\u03f6",
+    "bernou;": "\u212c",
+    "beta;": "\u03b2",
+    "beth;": "\u2136",
+    "between;": "\u226c",
+    "bfr;": "\U0001d51f",
+    "bigcap;": "\u22c2",
+    "bigcirc;": "\u25ef",
+    "bigcup;": "\u22c3",
+    "bigodot;": "\u2a00",
+    "bigoplus;": "\u2a01",
+    "bigotimes;": "\u2a02",
+    "bigsqcup;": "\u2a06",
+    "bigstar;": "\u2605",
+    "bigtriangledown;": "\u25bd",
+    "bigtriangleup;": "\u25b3",
+    "biguplus;": "\u2a04",
+    "bigvee;": "\u22c1",
+    "bigwedge;": "\u22c0",
+    "bkarow;": "\u290d",
+    "blacklozenge;": "\u29eb",
+    "blacksquare;": "\u25aa",
+    "blacktriangle;": "\u25b4",
+    "blacktriangledown;": "\u25be",
+    "blacktriangleleft;": "\u25c2",
+    "blacktriangleright;": "\u25b8",
+    "blank;": "\u2423",
+    "blk12;": "\u2592",
+    "blk14;": "\u2591",
+    "blk34;": "\u2593",
+    "block;": "\u2588",
+    "bne;": "=\u20e5",
+    "bnequiv;": "\u2261\u20e5",
+    "bnot;": "\u2310",
+    "bopf;": "\U0001d553",
+    "bot;": "\u22a5",
+    "bottom;": "\u22a5",
+    "bowtie;": "\u22c8",
+    "boxDL;": "\u2557",
+    "boxDR;": "\u2554",
+    "boxDl;": "\u2556",
+    "boxDr;": "\u2553",
+    "boxH;": "\u2550",
+    "boxHD;": "\u2566",
+    "boxHU;": "\u2569",
+    "boxHd;": "\u2564",
+    "boxHu;": "\u2567",
+    "boxUL;": "\u255d",
+    "boxUR;": "\u255a",
+    "boxUl;": "\u255c",
+    "boxUr;": "\u2559",
+    "boxV;": "\u2551",
+    "boxVH;": "\u256c",
+    "boxVL;": "\u2563",
+    "boxVR;": "\u2560",
+    "boxVh;": "\u256b",
+    "boxVl;": "\u2562",
+    "boxVr;": "\u255f",
+    "boxbox;": "\u29c9",
+    "boxdL;": "\u2555",
+    "boxdR;": "\u2552",
+    "boxdl;": "\u2510",
+    "boxdr;": "\u250c",
+    "boxh;": "\u2500",
+    "boxhD;": "\u2565",
+    "boxhU;": "\u2568",
+    "boxhd;": "\u252c",
+    "boxhu;": "\u2534",
+    "boxminus;": "\u229f",
+    "boxplus;": "\u229e",
+    "boxtimes;": "\u22a0",
+    "boxuL;": "\u255b",
+    "boxuR;": "\u2558",
+    "boxul;": "\u2518",
+    "boxur;": "\u2514",
+    "boxv;": "\u2502",
+    "boxvH;": "\u256a",
+    "boxvL;": "\u2561",
+    "boxvR;": "\u255e",
+    "boxvh;": "\u253c",
+    "boxvl;": "\u2524",
+    "boxvr;": "\u251c",
+    "bprime;": "\u2035",
+    "breve;": "\u02d8",
+    "brvbar": "\xa6",
+    "brvbar;": "\xa6",
+    "bscr;": "\U0001d4b7",
+    "bsemi;": "\u204f",
+    "bsim;": "\u223d",
+    "bsime;": "\u22cd",
+    "bsol;": "\\",
+    "bsolb;": "\u29c5",
+    "bsolhsub;": "\u27c8",
+    "bull;": "\u2022",
+    "bullet;": "\u2022",
+    "bump;": "\u224e",
+    "bumpE;": "\u2aae",
+    "bumpe;": "\u224f",
+    "bumpeq;": "\u224f",
+    "cacute;": "\u0107",
+    "cap;": "\u2229",
+    "capand;": "\u2a44",
+    "capbrcup;": "\u2a49",
+    "capcap;": "\u2a4b",
+    "capcup;": "\u2a47",
+    "capdot;": "\u2a40",
+    "caps;": "\u2229\ufe00",
+    "caret;": "\u2041",
+    "caron;": "\u02c7",
+    "ccaps;": "\u2a4d",
+    "ccaron;": "\u010d",
+    "ccedil": "\xe7",
+    "ccedil;": "\xe7",
+    "ccirc;": "\u0109",
+    "ccups;": "\u2a4c",
+    "ccupssm;": "\u2a50",
+    "cdot;": "\u010b",
+    "cedil": "\xb8",
+    "cedil;": "\xb8",
+    "cemptyv;": "\u29b2",
+    "cent": "\xa2",
+    "cent;": "\xa2",
+    "centerdot;": "\xb7",
+    "cfr;": "\U0001d520",
+    "chcy;": "\u0447",
+    "check;": "\u2713",
+    "checkmark;": "\u2713",
+    "chi;": "\u03c7",
+    "cir;": "\u25cb",
+    "cirE;": "\u29c3",
+    "circ;": "\u02c6",
+    "circeq;": "\u2257",
+    "circlearrowleft;": "\u21ba",
+    "circlearrowright;": "\u21bb",
+    "circledR;": "\xae",
+    "circledS;": "\u24c8",
+    "circledast;": "\u229b",
+    "circledcirc;": "\u229a",
+    "circleddash;": "\u229d",
+    "cire;": "\u2257",
+    "cirfnint;": "\u2a10",
+    "cirmid;": "\u2aef",
+    "cirscir;": "\u29c2",
+    "clubs;": "\u2663",
+    "clubsuit;": "\u2663",
+    "colon;": ":",
+    "colone;": "\u2254",
+    "coloneq;": "\u2254",
+    "comma;": ",",
+    "commat;": "@",
+    "comp;": "\u2201",
+    "compfn;": "\u2218",
+    "complement;": "\u2201",
+    "complexes;": "\u2102",
+    "cong;": "\u2245",
+    "congdot;": "\u2a6d",
+    "conint;": "\u222e",
+    "copf;": "\U0001d554",
+    "coprod;": "\u2210",
+    "copy": "\xa9",
+    "copy;": "\xa9",
+    "copysr;": "\u2117",
+    "crarr;": "\u21b5",
+    "cross;": "\u2717",
+    "cscr;": "\U0001d4b8",
+    "csub;": "\u2acf",
+    "csube;": "\u2ad1",
+    "csup;": "\u2ad0",
+    "csupe;": "\u2ad2",
+    "ctdot;": "\u22ef",
+    "cudarrl;": "\u2938",
+    "cudarrr;": "\u2935",
+    "cuepr;": "\u22de",
+    "cuesc;": "\u22df",
+    "cularr;": "\u21b6",
+    "cularrp;": "\u293d",
+    "cup;": "\u222a",
+    "cupbrcap;": "\u2a48",
+    "cupcap;": "\u2a46",
+    "cupcup;": "\u2a4a",
+    "cupdot;": "\u228d",
+    "cupor;": "\u2a45",
+    "cups;": "\u222a\ufe00",
+    "curarr;": "\u21b7",
+    "curarrm;": "\u293c",
+    "curlyeqprec;": "\u22de",
+    "curlyeqsucc;": "\u22df",
+    "curlyvee;": "\u22ce",
+    "curlywedge;": "\u22cf",
+    "curren": "\xa4",
+    "curren;": "\xa4",
+    "curvearrowleft;": "\u21b6",
+    "curvearrowright;": "\u21b7",
+    "cuvee;": "\u22ce",
+    "cuwed;": "\u22cf",
+    "cwconint;": "\u2232",
+    "cwint;": "\u2231",
+    "cylcty;": "\u232d",
+    "dArr;": "\u21d3",
+    "dHar;": "\u2965",
+    "dagger;": "\u2020",
+    "daleth;": "\u2138",
+    "darr;": "\u2193",
+    "dash;": "\u2010",
+    "dashv;": "\u22a3",
+    "dbkarow;": "\u290f",
+    "dblac;": "\u02dd",
+    "dcaron;": "\u010f",
+    "dcy;": "\u0434",
+    "dd;": "\u2146",
+    "ddagger;": "\u2021",
+    "ddarr;": "\u21ca",
+    "ddotseq;": "\u2a77",
+    "deg": "\xb0",
+    "deg;": "\xb0",
+    "delta;": "\u03b4",
+    "demptyv;": "\u29b1",
+    "dfisht;": "\u297f",
+    "dfr;": "\U0001d521",
+    "dharl;": "\u21c3",
+    "dharr;": "\u21c2",
+    "diam;": "\u22c4",
+    "diamond;": "\u22c4",
+    "diamondsuit;": "\u2666",
+    "diams;": "\u2666",
+    "die;": "\xa8",
+    "digamma;": "\u03dd",
+    "disin;": "\u22f2",
+    "div;": "\xf7",
+    "divide": "\xf7",
+    "divide;": "\xf7",
+    "divideontimes;": "\u22c7",
+    "divonx;": "\u22c7",
+    "djcy;": "\u0452",
+    "dlcorn;": "\u231e",
+    "dlcrop;": "\u230d",
+    "dollar;": "$",
+    "dopf;": "\U0001d555",
+    "dot;": "\u02d9",
+    "doteq;": "\u2250",
+    "doteqdot;": "\u2251",
+    "dotminus;": "\u2238",
+    "dotplus;": "\u2214",
+    "dotsquare;": "\u22a1",
+    "doublebarwedge;": "\u2306",
+    "downarrow;": "\u2193",
+    "downdownarrows;": "\u21ca",
+    "downharpoonleft;": "\u21c3",
+    "downharpoonright;": "\u21c2",
+    "drbkarow;": "\u2910",
+    "drcorn;": "\u231f",
+    "drcrop;": "\u230c",
+    "dscr;": "\U0001d4b9",
+    "dscy;": "\u0455",
+    "dsol;": "\u29f6",
+    "dstrok;": "\u0111",
+    "dtdot;": "\u22f1",
+    "dtri;": "\u25bf",
+    "dtrif;": "\u25be",
+    "duarr;": "\u21f5",
+    "duhar;": "\u296f",
+    "dwangle;": "\u29a6",
+    "dzcy;": "\u045f",
+    "dzigrarr;": "\u27ff",
+    "eDDot;": "\u2a77",
+    "eDot;": "\u2251",
+    "eacute": "\xe9",
+    "eacute;": "\xe9",
+    "easter;": "\u2a6e",
+    "ecaron;": "\u011b",
+    "ecir;": "\u2256",
+    "ecirc": "\xea",
+    "ecirc;": "\xea",
+    "ecolon;": "\u2255",
+    "ecy;": "\u044d",
+    "edot;": "\u0117",
+    "ee;": "\u2147",
+    "efDot;": "\u2252",
+    "efr;": "\U0001d522",
+    "eg;": "\u2a9a",
+    "egrave": "\xe8",
+    "egrave;": "\xe8",
+    "egs;": "\u2a96",
+    "egsdot;": "\u2a98",
+    "el;": "\u2a99",
+    "elinters;": "\u23e7",
+    "ell;": "\u2113",
+    "els;": "\u2a95",
+    "elsdot;": "\u2a97",
+    "emacr;": "\u0113",
+    "empty;": "\u2205",
+    "emptyset;": "\u2205",
+    "emptyv;": "\u2205",
+    "emsp13;": "\u2004",
+    "emsp14;": "\u2005",
+    "emsp;": "\u2003",
+    "eng;": "\u014b",
+    "ensp;": "\u2002",
+    "eogon;": "\u0119",
+    "eopf;": "\U0001d556",
+    "epar;": "\u22d5",
+    "eparsl;": "\u29e3",
+    "eplus;": "\u2a71",
+    "epsi;": "\u03b5",
+    "epsilon;": "\u03b5",
+    "epsiv;": "\u03f5",
+    "eqcirc;": "\u2256",
+    "eqcolon;": "\u2255",
+    "eqsim;": "\u2242",
+    "eqslantgtr;": "\u2a96",
+    "eqslantless;": "\u2a95",
+    "equals;": "=",
+    "equest;": "\u225f",
+    "equiv;": "\u2261",
+    "equivDD;": "\u2a78",
+    "eqvparsl;": "\u29e5",
+    "erDot;": "\u2253",
+    "erarr;": "\u2971",
+    "escr;": "\u212f",
+    "esdot;": "\u2250",
+    "esim;": "\u2242",
+    "eta;": "\u03b7",
+    "eth": "\xf0",
+    "eth;": "\xf0",
+    "euml": "\xeb",
+    "euml;": "\xeb",
+    "euro;": "\u20ac",
+    "excl;": "!",
+    "exist;": "\u2203",
+    "expectation;": "\u2130",
+    "exponentiale;": "\u2147",
+    "fallingdotseq;": "\u2252",
+    "fcy;": "\u0444",
+    "female;": "\u2640",
+    "ffilig;": "\ufb03",
+    "fflig;": "\ufb00",
+    "ffllig;": "\ufb04",
+    "ffr;": "\U0001d523",
+    "filig;": "\ufb01",
+    "fjlig;": "fj",
+    "flat;": "\u266d",
+    "fllig;": "\ufb02",
+    "fltns;": "\u25b1",
+    "fnof;": "\u0192",
+    "fopf;": "\U0001d557",
+    "forall;": "\u2200",
+    "fork;": "\u22d4",
+    "forkv;": "\u2ad9",
+    "fpartint;": "\u2a0d",
+    "frac12": "\xbd",
+    "frac12;": "\xbd",
+    "frac13;": "\u2153",
+    "frac14": "\xbc",
+    "frac14;": "\xbc",
+    "frac15;": "\u2155",
+    "frac16;": "\u2159",
+    "frac18;": "\u215b",
+    "frac23;": "\u2154",
+    "frac25;": "\u2156",
+    "frac34": "\xbe",
+    "frac34;": "\xbe",
+    "frac35;": "\u2157",
+    "frac38;": "\u215c",
+    "frac45;": "\u2158",
+    "frac56;": "\u215a",
+    "frac58;": "\u215d",
+    "frac78;": "\u215e",
+    "frasl;": "\u2044",
+    "frown;": "\u2322",
+    "fscr;": "\U0001d4bb",
+    "gE;": "\u2267",
+    "gEl;": "\u2a8c",
+    "gacute;": "\u01f5",
+    "gamma;": "\u03b3",
+    "gammad;": "\u03dd",
+    "gap;": "\u2a86",
+    "gbreve;": "\u011f",
+    "gcirc;": "\u011d",
+    "gcy;": "\u0433",
+    "gdot;": "\u0121",
+    "ge;": "\u2265",
+    "gel;": "\u22db",
+    "geq;": "\u2265",
+    "geqq;": "\u2267",
+    "geqslant;": "\u2a7e",
+    "ges;": "\u2a7e",
+    "gescc;": "\u2aa9",
+    "gesdot;": "\u2a80",
+    "gesdoto;": "\u2a82",
+    "gesdotol;": "\u2a84",
+    "gesl;": "\u22db\ufe00",
+    "gesles;": "\u2a94",
+    "gfr;": "\U0001d524",
+    "gg;": "\u226b",
+    "ggg;": "\u22d9",
+    "gimel;": "\u2137",
+    "gjcy;": "\u0453",
+    "gl;": "\u2277",
+    "glE;": "\u2a92",
+    "gla;": "\u2aa5",
+    "glj;": "\u2aa4",
+    "gnE;": "\u2269",
+    "gnap;": "\u2a8a",
+    "gnapprox;": "\u2a8a",
+    "gne;": "\u2a88",
+    "gneq;": "\u2a88",
+    "gneqq;": "\u2269",
+    "gnsim;": "\u22e7",
+    "gopf;": "\U0001d558",
+    "grave;": "`",
+    "gscr;": "\u210a",
+    "gsim;": "\u2273",
+    "gsime;": "\u2a8e",
+    "gsiml;": "\u2a90",
+    "gt": ">",
+    "gt;": ">",
+    "gtcc;": "\u2aa7",
+    "gtcir;": "\u2a7a",
+    "gtdot;": "\u22d7",
+    "gtlPar;": "\u2995",
+    "gtquest;": "\u2a7c",
+    "gtrapprox;": "\u2a86",
+    "gtrarr;": "\u2978",
+    "gtrdot;": "\u22d7",
+    "gtreqless;": "\u22db",
+    "gtreqqless;": "\u2a8c",
+    "gtrless;": "\u2277",
+    "gtrsim;": "\u2273",
+    "gvertneqq;": "\u2269\ufe00",
+    "gvnE;": "\u2269\ufe00",
+    "hArr;": "\u21d4",
+    "hairsp;": "\u200a",
+    "half;": "\xbd",
+    "hamilt;": "\u210b",
+    "hardcy;": "\u044a",
+    "harr;": "\u2194",
+    "harrcir;": "\u2948",
+    "harrw;": "\u21ad",
+    "hbar;": "\u210f",
+    "hcirc;": "\u0125",
+    "hearts;": "\u2665",
+    "heartsuit;": "\u2665",
+    "hellip;": "\u2026",
+    "hercon;": "\u22b9",
+    "hfr;": "\U0001d525",
+    "hksearow;": "\u2925",
+    "hkswarow;": "\u2926",
+    "hoarr;": "\u21ff",
+    "homtht;": "\u223b",
+    "hookleftarrow;": "\u21a9",
+    "hookrightarrow;": "\u21aa",
+    "hopf;": "\U0001d559",
+    "horbar;": "\u2015",
+    "hscr;": "\U0001d4bd",
+    "hslash;": "\u210f",
+    "hstrok;": "\u0127",
+    "hybull;": "\u2043",
+    "hyphen;": "\u2010",
+    "iacute": "\xed",
+    "iacute;": "\xed",
+    "ic;": "\u2063",
+    "icirc": "\xee",
+    "icirc;": "\xee",
+    "icy;": "\u0438",
+    "iecy;": "\u0435",
+    "iexcl": "\xa1",
+    "iexcl;": "\xa1",
+    "iff;": "\u21d4",
+    "ifr;": "\U0001d526",
+    "igrave": "\xec",
+    "igrave;": "\xec",
+    "ii;": "\u2148",
+    "iiiint;": "\u2a0c",
+    "iiint;": "\u222d",
+    "iinfin;": "\u29dc",
+    "iiota;": "\u2129",
+    "ijlig;": "\u0133",
+    "imacr;": "\u012b",
+    "image;": "\u2111",
+    "imagline;": "\u2110",
+    "imagpart;": "\u2111",
+    "imath;": "\u0131",
+    "imof;": "\u22b7",
+    "imped;": "\u01b5",
+    "in;": "\u2208",
+    "incare;": "\u2105",
+    "infin;": "\u221e",
+    "infintie;": "\u29dd",
+    "inodot;": "\u0131",
+    "int;": "\u222b",
+    "intcal;": "\u22ba",
+    "integers;": "\u2124",
+    "intercal;": "\u22ba",
+    "intlarhk;": "\u2a17",
+    "intprod;": "\u2a3c",
+    "iocy;": "\u0451",
+    "iogon;": "\u012f",
+    "iopf;": "\U0001d55a",
+    "iota;": "\u03b9",
+    "iprod;": "\u2a3c",
+    "iquest": "\xbf",
+    "iquest;": "\xbf",
+    "iscr;": "\U0001d4be",
+    "isin;": "\u2208",
+    "isinE;": "\u22f9",
+    "isindot;": "\u22f5",
+    "isins;": "\u22f4",
+    "isinsv;": "\u22f3",
+    "isinv;": "\u2208",
+    "it;": "\u2062",
+    "itilde;": "\u0129",
+    "iukcy;": "\u0456",
+    "iuml": "\xef",
+    "iuml;": "\xef",
+    "jcirc;": "\u0135",
+    "jcy;": "\u0439",
+    "jfr;": "\U0001d527",
+    "jmath;": "\u0237",
+    "jopf;": "\U0001d55b",
+    "jscr;": "\U0001d4bf",
+    "jsercy;": "\u0458",
+    "jukcy;": "\u0454",
+    "kappa;": "\u03ba",
+    "kappav;": "\u03f0",
+    "kcedil;": "\u0137",
+    "kcy;": "\u043a",
+    "kfr;": "\U0001d528",
+    "kgreen;": "\u0138",
+    "khcy;": "\u0445",
+    "kjcy;": "\u045c",
+    "kopf;": "\U0001d55c",
+    "kscr;": "\U0001d4c0",
+    "lAarr;": "\u21da",
+    "lArr;": "\u21d0",
+    "lAtail;": "\u291b",
+    "lBarr;": "\u290e",
+    "lE;": "\u2266",
+    "lEg;": "\u2a8b",
+    "lHar;": "\u2962",
+    "lacute;": "\u013a",
+    "laemptyv;": "\u29b4",
+    "lagran;": "\u2112",
+    "lambda;": "\u03bb",
+    "lang;": "\u27e8",
+    "langd;": "\u2991",
+    "langle;": "\u27e8",
+    "lap;": "\u2a85",
+    "laquo": "\xab",
+    "laquo;": "\xab",
+    "larr;": "\u2190",
+    "larrb;": "\u21e4",
+    "larrbfs;": "\u291f",
+    "larrfs;": "\u291d",
+    "larrhk;": "\u21a9",
+    "larrlp;": "\u21ab",
+    "larrpl;": "\u2939",
+    "larrsim;": "\u2973",
+    "larrtl;": "\u21a2",
+    "lat;": "\u2aab",
+    "latail;": "\u2919",
+    "late;": "\u2aad",
+    "lates;": "\u2aad\ufe00",
+    "lbarr;": "\u290c",
+    "lbbrk;": "\u2772",
+    "lbrace;": "{",
+    "lbrack;": "[",
+    "lbrke;": "\u298b",
+    "lbrksld;": "\u298f",
+    "lbrkslu;": "\u298d",
+    "lcaron;": "\u013e",
+    "lcedil;": "\u013c",
+    "lceil;": "\u2308",
+    "lcub;": "{",
+    "lcy;": "\u043b",
+    "ldca;": "\u2936",
+    "ldquo;": "\u201c",
+    "ldquor;": "\u201e",
+    "ldrdhar;": "\u2967",
+    "ldrushar;": "\u294b",
+    "ldsh;": "\u21b2",
+    "le;": "\u2264",
+    "leftarrow;": "\u2190",
+    "leftarrowtail;": "\u21a2",
+    "leftharpoondown;": "\u21bd",
+    "leftharpoonup;": "\u21bc",
+    "leftleftarrows;": "\u21c7",
+    "leftrightarrow;": "\u2194",
+    "leftrightarrows;": "\u21c6",
+    "leftrightharpoons;": "\u21cb",
+    "leftrightsquigarrow;": "\u21ad",
+    "leftthreetimes;": "\u22cb",
+    "leg;": "\u22da",
+    "leq;": "\u2264",
+    "leqq;": "\u2266",
+    "leqslant;": "\u2a7d",
+    "les;": "\u2a7d",
+    "lescc;": "\u2aa8",
+    "lesdot;": "\u2a7f",
+    "lesdoto;": "\u2a81",
+    "lesdotor;": "\u2a83",
+    "lesg;": "\u22da\ufe00",
+    "lesges;": "\u2a93",
+    "lessapprox;": "\u2a85",
+    "lessdot;": "\u22d6",
+    "lesseqgtr;": "\u22da",
+    "lesseqqgtr;": "\u2a8b",
+    "lessgtr;": "\u2276",
+    "lesssim;": "\u2272",
+    "lfisht;": "\u297c",
+    "lfloor;": "\u230a",
+    "lfr;": "\U0001d529",
+    "lg;": "\u2276",
+    "lgE;": "\u2a91",
+    "lhard;": "\u21bd",
+    "lharu;": "\u21bc",
+    "lharul;": "\u296a",
+    "lhblk;": "\u2584",
+    "ljcy;": "\u0459",
+    "ll;": "\u226a",
+    "llarr;": "\u21c7",
+    "llcorner;": "\u231e",
+    "llhard;": "\u296b",
+    "lltri;": "\u25fa",
+    "lmidot;": "\u0140",
+    "lmoust;": "\u23b0",
+    "lmoustache;": "\u23b0",
+    "lnE;": "\u2268",
+    "lnap;": "\u2a89",
+    "lnapprox;": "\u2a89",
+    "lne;": "\u2a87",
+    "lneq;": "\u2a87",
+    "lneqq;": "\u2268",
+    "lnsim;": "\u22e6",
+    "loang;": "\u27ec",
+    "loarr;": "\u21fd",
+    "lobrk;": "\u27e6",
+    "longleftarrow;": "\u27f5",
+    "longleftrightarrow;": "\u27f7",
+    "longmapsto;": "\u27fc",
+    "longrightarrow;": "\u27f6",
+    "looparrowleft;": "\u21ab",
+    "looparrowright;": "\u21ac",
+    "lopar;": "\u2985",
+    "lopf;": "\U0001d55d",
+    "loplus;": "\u2a2d",
+    "lotimes;": "\u2a34",
+    "lowast;": "\u2217",
+    "lowbar;": "_",
+    "loz;": "\u25ca",
+    "lozenge;": "\u25ca",
+    "lozf;": "\u29eb",
+    "lpar;": "(",
+    "lparlt;": "\u2993",
+    "lrarr;": "\u21c6",
+    "lrcorner;": "\u231f",
+    "lrhar;": "\u21cb",
+    "lrhard;": "\u296d",
+    "lrm;": "\u200e",
+    "lrtri;": "\u22bf",
+    "lsaquo;": "\u2039",
+    "lscr;": "\U0001d4c1",
+    "lsh;": "\u21b0",
+    "lsim;": "\u2272",
+    "lsime;": "\u2a8d",
+    "lsimg;": "\u2a8f",
+    "lsqb;": "[",
+    "lsquo;": "\u2018",
+    "lsquor;": "\u201a",
+    "lstrok;": "\u0142",
+    "lt": "<",
+    "lt;": "<",
+    "ltcc;": "\u2aa6",
+    "ltcir;": "\u2a79",
+    "ltdot;": "\u22d6",
+    "lthree;": "\u22cb",
+    "ltimes;": "\u22c9",
+    "ltlarr;": "\u2976",
+    "ltquest;": "\u2a7b",
+    "ltrPar;": "\u2996",
+    "ltri;": "\u25c3",
+    "ltrie;": "\u22b4",
+    "ltrif;": "\u25c2",
+    "lurdshar;": "\u294a",
+    "luruhar;": "\u2966",
+    "lvertneqq;": "\u2268\ufe00",
+    "lvnE;": "\u2268\ufe00",
+    "mDDot;": "\u223a",
+    "macr": "\xaf",
+    "macr;": "\xaf",
+    "male;": "\u2642",
+    "malt;": "\u2720",
+    "maltese;": "\u2720",
+    "map;": "\u21a6",
+    "mapsto;": "\u21a6",
+    "mapstodown;": "\u21a7",
+    "mapstoleft;": "\u21a4",
+    "mapstoup;": "\u21a5",
+    "marker;": "\u25ae",
+    "mcomma;": "\u2a29",
+    "mcy;": "\u043c",
+    "mdash;": "\u2014",
+    "measuredangle;": "\u2221",
+    "mfr;": "\U0001d52a",
+    "mho;": "\u2127",
+    "micro": "\xb5",
+    "micro;": "\xb5",
+    "mid;": "\u2223",
+    "midast;": "*",
+    "midcir;": "\u2af0",
+    "middot": "\xb7",
+    "middot;": "\xb7",
+    "minus;": "\u2212",
+    "minusb;": "\u229f",
+    "minusd;": "\u2238",
+    "minusdu;": "\u2a2a",
+    "mlcp;": "\u2adb",
+    "mldr;": "\u2026",
+    "mnplus;": "\u2213",
+    "models;": "\u22a7",
+    "mopf;": "\U0001d55e",
+    "mp;": "\u2213",
+    "mscr;": "\U0001d4c2",
+    "mstpos;": "\u223e",
+    "mu;": "\u03bc",
+    "multimap;": "\u22b8",
+    "mumap;": "\u22b8",
+    "nGg;": "\u22d9\u0338",
+    "nGt;": "\u226b\u20d2",
+    "nGtv;": "\u226b\u0338",
+    "nLeftarrow;": "\u21cd",
+    "nLeftrightarrow;": "\u21ce",
+    "nLl;": "\u22d8\u0338",
+    "nLt;": "\u226a\u20d2",
+    "nLtv;": "\u226a\u0338",
+    "nRightarrow;": "\u21cf",
+    "nVDash;": "\u22af",
+    "nVdash;": "\u22ae",
+    "nabla;": "\u2207",
+    "nacute;": "\u0144",
+    "nang;": "\u2220\u20d2",
+    "nap;": "\u2249",
+    "napE;": "\u2a70\u0338",
+    "napid;": "\u224b\u0338",
+    "napos;": "\u0149",
+    "napprox;": "\u2249",
+    "natur;": "\u266e",
+    "natural;": "\u266e",
+    "naturals;": "\u2115",
+    "nbsp": "\xa0",
+    "nbsp;": "\xa0",
+    "nbump;": "\u224e\u0338",
+    "nbumpe;": "\u224f\u0338",
+    "ncap;": "\u2a43",
+    "ncaron;": "\u0148",
+    "ncedil;": "\u0146",
+    "ncong;": "\u2247",
+    "ncongdot;": "\u2a6d\u0338",
+    "ncup;": "\u2a42",
+    "ncy;": "\u043d",
+    "ndash;": "\u2013",
+    "ne;": "\u2260",
+    "neArr;": "\u21d7",
+    "nearhk;": "\u2924",
+    "nearr;": "\u2197",
+    "nearrow;": "\u2197",
+    "nedot;": "\u2250\u0338",
+    "nequiv;": "\u2262",
+    "nesear;": "\u2928",
+    "nesim;": "\u2242\u0338",
+    "nexist;": "\u2204",
+    "nexists;": "\u2204",
+    "nfr;": "\U0001d52b",
+    "ngE;": "\u2267\u0338",
+    "nge;": "\u2271",
+    "ngeq;": "\u2271",
+    "ngeqq;": "\u2267\u0338",
+    "ngeqslant;": "\u2a7e\u0338",
+    "nges;": "\u2a7e\u0338",
+    "ngsim;": "\u2275",
+    "ngt;": "\u226f",
+    "ngtr;": "\u226f",
+    "nhArr;": "\u21ce",
+    "nharr;": "\u21ae",
+    "nhpar;": "\u2af2",
+    "ni;": "\u220b",
+    "nis;": "\u22fc",
+    "nisd;": "\u22fa",
+    "niv;": "\u220b",
+    "njcy;": "\u045a",
+    "nlArr;": "\u21cd",
+    "nlE;": "\u2266\u0338",
+    "nlarr;": "\u219a",
+    "nldr;": "\u2025",
+    "nle;": "\u2270",
+    "nleftarrow;": "\u219a",
+    "nleftrightarrow;": "\u21ae",
+    "nleq;": "\u2270",
+    "nleqq;": "\u2266\u0338",
+    "nleqslant;": "\u2a7d\u0338",
+    "nles;": "\u2a7d\u0338",
+    "nless;": "\u226e",
+    "nlsim;": "\u2274",
+    "nlt;": "\u226e",
+    "nltri;": "\u22ea",
+    "nltrie;": "\u22ec",
+    "nmid;": "\u2224",
+    "nopf;": "\U0001d55f",
+    "not": "\xac",
+    "not;": "\xac",
+    "notin;": "\u2209",
+    "notinE;": "\u22f9\u0338",
+    "notindot;": "\u22f5\u0338",
+    "notinva;": "\u2209",
+    "notinvb;": "\u22f7",
+    "notinvc;": "\u22f6",
+    "notni;": "\u220c",
+    "notniva;": "\u220c",
+    "notnivb;": "\u22fe",
+    "notnivc;": "\u22fd",
+    "npar;": "\u2226",
+    "nparallel;": "\u2226",
+    "nparsl;": "\u2afd\u20e5",
+    "npart;": "\u2202\u0338",
+    "npolint;": "\u2a14",
+    "npr;": "\u2280",
+    "nprcue;": "\u22e0",
+    "npre;": "\u2aaf\u0338",
+    "nprec;": "\u2280",
+    "npreceq;": "\u2aaf\u0338",
+    "nrArr;": "\u21cf",
+    "nrarr;": "\u219b",
+    "nrarrc;": "\u2933\u0338",
+    "nrarrw;": "\u219d\u0338",
+    "nrightarrow;": "\u219b",
+    "nrtri;": "\u22eb",
+    "nrtrie;": "\u22ed",
+    "nsc;": "\u2281",
+    "nsccue;": "\u22e1",
+    "nsce;": "\u2ab0\u0338",
+    "nscr;": "\U0001d4c3",
+    "nshortmid;": "\u2224",
+    "nshortparallel;": "\u2226",
+    "nsim;": "\u2241",
+    "nsime;": "\u2244",
+    "nsimeq;": "\u2244",
+    "nsmid;": "\u2224",
+    "nspar;": "\u2226",
+    "nsqsube;": "\u22e2",
+    "nsqsupe;": "\u22e3",
+    "nsub;": "\u2284",
+    "nsubE;": "\u2ac5\u0338",
+    "nsube;": "\u2288",
+    "nsubset;": "\u2282\u20d2",
+    "nsubseteq;": "\u2288",
+    "nsubseteqq;": "\u2ac5\u0338",
+    "nsucc;": "\u2281",
+    "nsucceq;": "\u2ab0\u0338",
+    "nsup;": "\u2285",
+    "nsupE;": "\u2ac6\u0338",
+    "nsupe;": "\u2289",
+    "nsupset;": "\u2283\u20d2",
+    "nsupseteq;": "\u2289",
+    "nsupseteqq;": "\u2ac6\u0338",
+    "ntgl;": "\u2279",
+    "ntilde": "\xf1",
+    "ntilde;": "\xf1",
+    "ntlg;": "\u2278",
+    "ntriangleleft;": "\u22ea",
+    "ntrianglelefteq;": "\u22ec",
+    "ntriangleright;": "\u22eb",
+    "ntrianglerighteq;": "\u22ed",
+    "nu;": "\u03bd",
+    "num;": "#",
+    "numero;": "\u2116",
+    "numsp;": "\u2007",
+    "nvDash;": "\u22ad",
+    "nvHarr;": "\u2904",
+    "nvap;": "\u224d\u20d2",
+    "nvdash;": "\u22ac",
+    "nvge;": "\u2265\u20d2",
+    "nvgt;": ">\u20d2",
+    "nvinfin;": "\u29de",
+    "nvlArr;": "\u2902",
+    "nvle;": "\u2264\u20d2",
+    "nvlt;": "<\u20d2",
+    "nvltrie;": "\u22b4\u20d2",
+    "nvrArr;": "\u2903",
+    "nvrtrie;": "\u22b5\u20d2",
+    "nvsim;": "\u223c\u20d2",
+    "nwArr;": "\u21d6",
+    "nwarhk;": "\u2923",
+    "nwarr;": "\u2196",
+    "nwarrow;": "\u2196",
+    "nwnear;": "\u2927",
+    "oS;": "\u24c8",
+    "oacute": "\xf3",
+    "oacute;": "\xf3",
+    "oast;": "\u229b",
+    "ocir;": "\u229a",
+    "ocirc": "\xf4",
+    "ocirc;": "\xf4",
+    "ocy;": "\u043e",
+    "odash;": "\u229d",
+    "odblac;": "\u0151",
+    "odiv;": "\u2a38",
+    "odot;": "\u2299",
+    "odsold;": "\u29bc",
+    "oelig;": "\u0153",
+    "ofcir;": "\u29bf",
+    "ofr;": "\U0001d52c",
+    "ogon;": "\u02db",
+    "ograve": "\xf2",
+    "ograve;": "\xf2",
+    "ogt;": "\u29c1",
+    "ohbar;": "\u29b5",
+    "ohm;": "\u03a9",
+    "oint;": "\u222e",
+    "olarr;": "\u21ba",
+    "olcir;": "\u29be",
+    "olcross;": "\u29bb",
+    "oline;": "\u203e",
+    "olt;": "\u29c0",
+    "omacr;": "\u014d",
+    "omega;": "\u03c9",
+    "omicron;": "\u03bf",
+    "omid;": "\u29b6",
+    "ominus;": "\u2296",
+    "oopf;": "\U0001d560",
+    "opar;": "\u29b7",
+    "operp;": "\u29b9",
+    "oplus;": "\u2295",
+    "or;": "\u2228",
+    "orarr;": "\u21bb",
+    "ord;": "\u2a5d",
+    "order;": "\u2134",
+    "orderof;": "\u2134",
+    "ordf": "\xaa",
+    "ordf;": "\xaa",
+    "ordm": "\xba",
+    "ordm;": "\xba",
+    "origof;": "\u22b6",
+    "oror;": "\u2a56",
+    "orslope;": "\u2a57",
+    "orv;": "\u2a5b",
+    "oscr;": "\u2134",
+    "oslash": "\xf8",
+    "oslash;": "\xf8",
+    "osol;": "\u2298",
+    "otilde": "\xf5",
+    "otilde;": "\xf5",
+    "otimes;": "\u2297",
+    "otimesas;": "\u2a36",
+    "ouml": "\xf6",
+    "ouml;": "\xf6",
+    "ovbar;": "\u233d",
+    "par;": "\u2225",
+    "para": "\xb6",
+    "para;": "\xb6",
+    "parallel;": "\u2225",
+    "parsim;": "\u2af3",
+    "parsl;": "\u2afd",
+    "part;": "\u2202",
+    "pcy;": "\u043f",
+    "percnt;": "%",
+    "period;": ".",
+    "permil;": "\u2030",
+    "perp;": "\u22a5",
+    "pertenk;": "\u2031",
+    "pfr;": "\U0001d52d",
+    "phi;": "\u03c6",
+    "phiv;": "\u03d5",
+    "phmmat;": "\u2133",
+    "phone;": "\u260e",
+    "pi;": "\u03c0",
+    "pitchfork;": "\u22d4",
+    "piv;": "\u03d6",
+    "planck;": "\u210f",
+    "planckh;": "\u210e",
+    "plankv;": "\u210f",
+    "plus;": "+",
+    "plusacir;": "\u2a23",
+    "plusb;": "\u229e",
+    "pluscir;": "\u2a22",
+    "plusdo;": "\u2214",
+    "plusdu;": "\u2a25",
+    "pluse;": "\u2a72",
+    "plusmn": "\xb1",
+    "plusmn;": "\xb1",
+    "plussim;": "\u2a26",
+    "plustwo;": "\u2a27",
+    "pm;": "\xb1",
+    "pointint;": "\u2a15",
+    "popf;": "\U0001d561",
+    "pound": "\xa3",
+    "pound;": "\xa3",
+    "pr;": "\u227a",
+    "prE;": "\u2ab3",
+    "prap;": "\u2ab7",
+    "prcue;": "\u227c",
+    "pre;": "\u2aaf",
+    "prec;": "\u227a",
+    "precapprox;": "\u2ab7",
+    "preccurlyeq;": "\u227c",
+    "preceq;": "\u2aaf",
+    "precnapprox;": "\u2ab9",
+    "precneqq;": "\u2ab5",
+    "precnsim;": "\u22e8",
+    "precsim;": "\u227e",
+    "prime;": "\u2032",
+    "primes;": "\u2119",
+    "prnE;": "\u2ab5",
+    "prnap;": "\u2ab9",
+    "prnsim;": "\u22e8",
+    "prod;": "\u220f",
+    "profalar;": "\u232e",
+    "profline;": "\u2312",
+    "profsurf;": "\u2313",
+    "prop;": "\u221d",
+    "propto;": "\u221d",
+    "prsim;": "\u227e",
+    "prurel;": "\u22b0",
+    "pscr;": "\U0001d4c5",
+    "psi;": "\u03c8",
+    "puncsp;": "\u2008",
+    "qfr;": "\U0001d52e",
+    "qint;": "\u2a0c",
+    "qopf;": "\U0001d562",
+    "qprime;": "\u2057",
+    "qscr;": "\U0001d4c6",
+    "quaternions;": "\u210d",
+    "quatint;": "\u2a16",
+    "quest;": "?",
+    "questeq;": "\u225f",
+    "quot": "\"",
+    "quot;": "\"",
+    "rAarr;": "\u21db",
+    "rArr;": "\u21d2",
+    "rAtail;": "\u291c",
+    "rBarr;": "\u290f",
+    "rHar;": "\u2964",
+    "race;": "\u223d\u0331",
+    "racute;": "\u0155",
+    "radic;": "\u221a",
+    "raemptyv;": "\u29b3",
+    "rang;": "\u27e9",
+    "rangd;": "\u2992",
+    "range;": "\u29a5",
+    "rangle;": "\u27e9",
+    "raquo": "\xbb",
+    "raquo;": "\xbb",
+    "rarr;": "\u2192",
+    "rarrap;": "\u2975",
+    "rarrb;": "\u21e5",
+    "rarrbfs;": "\u2920",
+    "rarrc;": "\u2933",
+    "rarrfs;": "\u291e",
+    "rarrhk;": "\u21aa",
+    "rarrlp;": "\u21ac",
+    "rarrpl;": "\u2945",
+    "rarrsim;": "\u2974",
+    "rarrtl;": "\u21a3",
+    "rarrw;": "\u219d",
+    "ratail;": "\u291a",
+    "ratio;": "\u2236",
+    "rationals;": "\u211a",
+    "rbarr;": "\u290d",
+    "rbbrk;": "\u2773",
+    "rbrace;": "}",
+    "rbrack;": "]",
+    "rbrke;": "\u298c",
+    "rbrksld;": "\u298e",
+    "rbrkslu;": "\u2990",
+    "rcaron;": "\u0159",
+    "rcedil;": "\u0157",
+    "rceil;": "\u2309",
+    "rcub;": "}",
+    "rcy;": "\u0440",
+    "rdca;": "\u2937",
+    "rdldhar;": "\u2969",
+    "rdquo;": "\u201d",
+    "rdquor;": "\u201d",
+    "rdsh;": "\u21b3",
+    "real;": "\u211c",
+    "realine;": "\u211b",
+    "realpart;": "\u211c",
+    "reals;": "\u211d",
+    "rect;": "\u25ad",
+    "reg": "\xae",
+    "reg;": "\xae",
+    "rfisht;": "\u297d",
+    "rfloor;": "\u230b",
+    "rfr;": "\U0001d52f",
+    "rhard;": "\u21c1",
+    "rharu;": "\u21c0",
+    "rharul;": "\u296c",
+    "rho;": "\u03c1",
+    "rhov;": "\u03f1",
+    "rightarrow;": "\u2192",
+    "rightarrowtail;": "\u21a3",
+    "rightharpoondown;": "\u21c1",
+    "rightharpoonup;": "\u21c0",
+    "rightleftarrows;": "\u21c4",
+    "rightleftharpoons;": "\u21cc",
+    "rightrightarrows;": "\u21c9",
+    "rightsquigarrow;": "\u219d",
+    "rightthreetimes;": "\u22cc",
+    "ring;": "\u02da",
+    "risingdotseq;": "\u2253",
+    "rlarr;": "\u21c4",
+    "rlhar;": "\u21cc",
+    "rlm;": "\u200f",
+    "rmoust;": "\u23b1",
+    "rmoustache;": "\u23b1",
+    "rnmid;": "\u2aee",
+    "roang;": "\u27ed",
+    "roarr;": "\u21fe",
+    "robrk;": "\u27e7",
+    "ropar;": "\u2986",
+    "ropf;": "\U0001d563",
+    "roplus;": "\u2a2e",
+    "rotimes;": "\u2a35",
+    "rpar;": ")",
+    "rpargt;": "\u2994",
+    "rppolint;": "\u2a12",
+    "rrarr;": "\u21c9",
+    "rsaquo;": "\u203a",
+    "rscr;": "\U0001d4c7",
+    "rsh;": "\u21b1",
+    "rsqb;": "]",
+    "rsquo;": "\u2019",
+    "rsquor;": "\u2019",
+    "rthree;": "\u22cc",
+    "rtimes;": "\u22ca",
+    "rtri;": "\u25b9",
+    "rtrie;": "\u22b5",
+    "rtrif;": "\u25b8",
+    "rtriltri;": "\u29ce",
+    "ruluhar;": "\u2968",
+    "rx;": "\u211e",
+    "sacute;": "\u015b",
+    "sbquo;": "\u201a",
+    "sc;": "\u227b",
+    "scE;": "\u2ab4",
+    "scap;": "\u2ab8",
+    "scaron;": "\u0161",
+    "sccue;": "\u227d",
+    "sce;": "\u2ab0",
+    "scedil;": "\u015f",
+    "scirc;": "\u015d",
+    "scnE;": "\u2ab6",
+    "scnap;": "\u2aba",
+    "scnsim;": "\u22e9",
+    "scpolint;": "\u2a13",
+    "scsim;": "\u227f",
+    "scy;": "\u0441",
+    "sdot;": "\u22c5",
+    "sdotb;": "\u22a1",
+    "sdote;": "\u2a66",
+    "seArr;": "\u21d8",
+    "searhk;": "\u2925",
+    "searr;": "\u2198",
+    "searrow;": "\u2198",
+    "sect": "\xa7",
+    "sect;": "\xa7",
+    "semi;": ";",
+    "seswar;": "\u2929",
+    "setminus;": "\u2216",
+    "setmn;": "\u2216",
+    "sext;": "\u2736",
+    "sfr;": "\U0001d530",
+    "sfrown;": "\u2322",
+    "sharp;": "\u266f",
+    "shchcy;": "\u0449",
+    "shcy;": "\u0448",
+    "shortmid;": "\u2223",
+    "shortparallel;": "\u2225",
+    "shy": "\xad",
+    "shy;": "\xad",
+    "sigma;": "\u03c3",
+    "sigmaf;": "\u03c2",
+    "sigmav;": "\u03c2",
+    "sim;": "\u223c",
+    "simdot;": "\u2a6a",
+    "sime;": "\u2243",
+    "simeq;": "\u2243",
+    "simg;": "\u2a9e",
+    "simgE;": "\u2aa0",
+    "siml;": "\u2a9d",
+    "simlE;": "\u2a9f",
+    "simne;": "\u2246",
+    "simplus;": "\u2a24",
+    "simrarr;": "\u2972",
+    "slarr;": "\u2190",
+    "smallsetminus;": "\u2216",
+    "smashp;": "\u2a33",
+    "smeparsl;": "\u29e4",
+    "smid;": "\u2223",
+    "smile;": "\u2323",
+    "smt;": "\u2aaa",
+    "smte;": "\u2aac",
+    "smtes;": "\u2aac\ufe00",
+    "softcy;": "\u044c",
+    "sol;": "/",
+    "solb;": "\u29c4",
+    "solbar;": "\u233f",
+    "sopf;": "\U0001d564",
+    "spades;": "\u2660",
+    "spadesuit;": "\u2660",
+    "spar;": "\u2225",
+    "sqcap;": "\u2293",
+    "sqcaps;": "\u2293\ufe00",
+    "sqcup;": "\u2294",
+    "sqcups;": "\u2294\ufe00",
+    "sqsub;": "\u228f",
+    "sqsube;": "\u2291",
+    "sqsubset;": "\u228f",
+    "sqsubseteq;": "\u2291",
+    "sqsup;": "\u2290",
+    "sqsupe;": "\u2292",
+    "sqsupset;": "\u2290",
+    "sqsupseteq;": "\u2292",
+    "squ;": "\u25a1",
+    "square;": "\u25a1",
+    "squarf;": "\u25aa",
+    "squf;": "\u25aa",
+    "srarr;": "\u2192",
+    "sscr;": "\U0001d4c8",
+    "ssetmn;": "\u2216",
+    "ssmile;": "\u2323",
+    "sstarf;": "\u22c6",
+    "star;": "\u2606",
+    "starf;": "\u2605",
+    "straightepsilon;": "\u03f5",
+    "straightphi;": "\u03d5",
+    "strns;": "\xaf",
+    "sub;": "\u2282",
+    "subE;": "\u2ac5",
+    "subdot;": "\u2abd",
+    "sube;": "\u2286",
+    "subedot;": "\u2ac3",
+    "submult;": "\u2ac1",
+    "subnE;": "\u2acb",
+    "subne;": "\u228a",
+    "subplus;": "\u2abf",
+    "subrarr;": "\u2979",
+    "subset;": "\u2282",
+    "subseteq;": "\u2286",
+    "subseteqq;": "\u2ac5",
+    "subsetneq;": "\u228a",
+    "subsetneqq;": "\u2acb",
+    "subsim;": "\u2ac7",
+    "subsub;": "\u2ad5",
+    "subsup;": "\u2ad3",
+    "succ;": "\u227b",
+    "succapprox;": "\u2ab8",
+    "succcurlyeq;": "\u227d",
+    "succeq;": "\u2ab0",
+    "succnapprox;": "\u2aba",
+    "succneqq;": "\u2ab6",
+    "succnsim;": "\u22e9",
+    "succsim;": "\u227f",
+    "sum;": "\u2211",
+    "sung;": "\u266a",
+    "sup1": "\xb9",
+    "sup1;": "\xb9",
+    "sup2": "\xb2",
+    "sup2;": "\xb2",
+    "sup3": "\xb3",
+    "sup3;": "\xb3",
+    "sup;": "\u2283",
+    "supE;": "\u2ac6",
+    "supdot;": "\u2abe",
+    "supdsub;": "\u2ad8",
+    "supe;": "\u2287",
+    "supedot;": "\u2ac4",
+    "suphsol;": "\u27c9",
+    "suphsub;": "\u2ad7",
+    "suplarr;": "\u297b",
+    "supmult;": "\u2ac2",
+    "supnE;": "\u2acc",
+    "supne;": "\u228b",
+    "supplus;": "\u2ac0",
+    "supset;": "\u2283",
+    "supseteq;": "\u2287",
+    "supseteqq;": "\u2ac6",
+    "supsetneq;": "\u228b",
+    "supsetneqq;": "\u2acc",
+    "supsim;": "\u2ac8",
+    "supsub;": "\u2ad4",
+    "supsup;": "\u2ad6",
+    "swArr;": "\u21d9",
+    "swarhk;": "\u2926",
+    "swarr;": "\u2199",
+    "swarrow;": "\u2199",
+    "swnwar;": "\u292a",
+    "szlig": "\xdf",
+    "szlig;": "\xdf",
+    "target;": "\u2316",
+    "tau;": "\u03c4",
+    "tbrk;": "\u23b4",
+    "tcaron;": "\u0165",
+    "tcedil;": "\u0163",
+    "tcy;": "\u0442",
+    "tdot;": "\u20db",
+    "telrec;": "\u2315",
+    "tfr;": "\U0001d531",
+    "there4;": "\u2234",
+    "therefore;": "\u2234",
+    "theta;": "\u03b8",
+    "thetasym;": "\u03d1",
+    "thetav;": "\u03d1",
+    "thickapprox;": "\u2248",
+    "thicksim;": "\u223c",
+    "thinsp;": "\u2009",
+    "thkap;": "\u2248",
+    "thksim;": "\u223c",
+    "thorn": "\xfe",
+    "thorn;": "\xfe",
+    "tilde;": "\u02dc",
+    "times": "\xd7",
+    "times;": "\xd7",
+    "timesb;": "\u22a0",
+    "timesbar;": "\u2a31",
+    "timesd;": "\u2a30",
+    "tint;": "\u222d",
+    "toea;": "\u2928",
+    "top;": "\u22a4",
+    "topbot;": "\u2336",
+    "topcir;": "\u2af1",
+    "topf;": "\U0001d565",
+    "topfork;": "\u2ada",
+    "tosa;": "\u2929",
+    "tprime;": "\u2034",
+    "trade;": "\u2122",
+    "triangle;": "\u25b5",
+    "triangledown;": "\u25bf",
+    "triangleleft;": "\u25c3",
+    "trianglelefteq;": "\u22b4",
+    "triangleq;": "\u225c",
+    "triangleright;": "\u25b9",
+    "trianglerighteq;": "\u22b5",
+    "tridot;": "\u25ec",
+    "trie;": "\u225c",
+    "triminus;": "\u2a3a",
+    "triplus;": "\u2a39",
+    "trisb;": "\u29cd",
+    "tritime;": "\u2a3b",
+    "trpezium;": "\u23e2",
+    "tscr;": "\U0001d4c9",
+    "tscy;": "\u0446",
+    "tshcy;": "\u045b",
+    "tstrok;": "\u0167",
+    "twixt;": "\u226c",
+    "twoheadleftarrow;": "\u219e",
+    "twoheadrightarrow;": "\u21a0",
+    "uArr;": "\u21d1",
+    "uHar;": "\u2963",
+    "uacute": "\xfa",
+    "uacute;": "\xfa",
+    "uarr;": "\u2191",
+    "ubrcy;": "\u045e",
+    "ubreve;": "\u016d",
+    "ucirc": "\xfb",
+    "ucirc;": "\xfb",
+    "ucy;": "\u0443",
+    "udarr;": "\u21c5",
+    "udblac;": "\u0171",
+    "udhar;": "\u296e",
+    "ufisht;": "\u297e",
+    "ufr;": "\U0001d532",
+    "ugrave": "\xf9",
+    "ugrave;": "\xf9",
+    "uharl;": "\u21bf",
+    "uharr;": "\u21be",
+    "uhblk;": "\u2580",
+    "ulcorn;": "\u231c",
+    "ulcorner;": "\u231c",
+    "ulcrop;": "\u230f",
+    "ultri;": "\u25f8",
+    "umacr;": "\u016b",
+    "uml": "\xa8",
+    "uml;": "\xa8",
+    "uogon;": "\u0173",
+    "uopf;": "\U0001d566",
+    "uparrow;": "\u2191",
+    "updownarrow;": "\u2195",
+    "upharpoonleft;": "\u21bf",
+    "upharpoonright;": "\u21be",
+    "uplus;": "\u228e",
+    "upsi;": "\u03c5",
+    "upsih;": "\u03d2",
+    "upsilon;": "\u03c5",
+    "upuparrows;": "\u21c8",
+    "urcorn;": "\u231d",
+    "urcorner;": "\u231d",
+    "urcrop;": "\u230e",
+    "uring;": "\u016f",
+    "urtri;": "\u25f9",
+    "uscr;": "\U0001d4ca",
+    "utdot;": "\u22f0",
+    "utilde;": "\u0169",
+    "utri;": "\u25b5",
+    "utrif;": "\u25b4",
+    "uuarr;": "\u21c8",
+    "uuml": "\xfc",
+    "uuml;": "\xfc",
+    "uwangle;": "\u29a7",
+    "vArr;": "\u21d5",
+    "vBar;": "\u2ae8",
+    "vBarv;": "\u2ae9",
+    "vDash;": "\u22a8",
+    "vangrt;": "\u299c",
+    "varepsilon;": "\u03f5",
+    "varkappa;": "\u03f0",
+    "varnothing;": "\u2205",
+    "varphi;": "\u03d5",
+    "varpi;": "\u03d6",
+    "varpropto;": "\u221d",
+    "varr;": "\u2195",
+    "varrho;": "\u03f1",
+    "varsigma;": "\u03c2",
+    "varsubsetneq;": "\u228a\ufe00",
+    "varsubsetneqq;": "\u2acb\ufe00",
+    "varsupsetneq;": "\u228b\ufe00",
+    "varsupsetneqq;": "\u2acc\ufe00",
+    "vartheta;": "\u03d1",
+    "vartriangleleft;": "\u22b2",
+    "vartriangleright;": "\u22b3",
+    "vcy;": "\u0432",
+    "vdash;": "\u22a2",
+    "vee;": "\u2228",
+    "veebar;": "\u22bb",
+    "veeeq;": "\u225a",
+    "vellip;": "\u22ee",
+    "verbar;": "|",
+    "vert;": "|",
+    "vfr;": "\U0001d533",
+    "vltri;": "\u22b2",
+    "vnsub;": "\u2282\u20d2",
+    "vnsup;": "\u2283\u20d2",
+    "vopf;": "\U0001d567",
+    "vprop;": "\u221d",
+    "vrtri;": "\u22b3",
+    "vscr;": "\U0001d4cb",
+    "vsubnE;": "\u2acb\ufe00",
+    "vsubne;": "\u228a\ufe00",
+    "vsupnE;": "\u2acc\ufe00",
+    "vsupne;": "\u228b\ufe00",
+    "vzigzag;": "\u299a",
+    "wcirc;": "\u0175",
+    "wedbar;": "\u2a5f",
+    "wedge;": "\u2227",
+    "wedgeq;": "\u2259",
+    "weierp;": "\u2118",
+    "wfr;": "\U0001d534",
+    "wopf;": "\U0001d568",
+    "wp;": "\u2118",
+    "wr;": "\u2240",
+    "wreath;": "\u2240",
+    "wscr;": "\U0001d4cc",
+    "xcap;": "\u22c2",
+    "xcirc;": "\u25ef",
+    "xcup;": "\u22c3",
+    "xdtri;": "\u25bd",
+    "xfr;": "\U0001d535",
+    "xhArr;": "\u27fa",
+    "xharr;": "\u27f7",
+    "xi;": "\u03be",
+    "xlArr;": "\u27f8",
+    "xlarr;": "\u27f5",
+    "xmap;": "\u27fc",
+    "xnis;": "\u22fb",
+    "xodot;": "\u2a00",
+    "xopf;": "\U0001d569",
+    "xoplus;": "\u2a01",
+    "xotime;": "\u2a02",
+    "xrArr;": "\u27f9",
+    "xrarr;": "\u27f6",
+    "xscr;": "\U0001d4cd",
+    "xsqcup;": "\u2a06",
+    "xuplus;": "\u2a04",
+    "xutri;": "\u25b3",
+    "xvee;": "\u22c1",
+    "xwedge;": "\u22c0",
+    "yacute": "\xfd",
+    "yacute;": "\xfd",
+    "yacy;": "\u044f",
+    "ycirc;": "\u0177",
+    "ycy;": "\u044b",
+    "yen": "\xa5",
+    "yen;": "\xa5",
+    "yfr;": "\U0001d536",
+    "yicy;": "\u0457",
+    "yopf;": "\U0001d56a",
+    "yscr;": "\U0001d4ce",
+    "yucy;": "\u044e",
+    "yuml": "\xff",
+    "yuml;": "\xff",
+    "zacute;": "\u017a",
+    "zcaron;": "\u017e",
+    "zcy;": "\u0437",
+    "zdot;": "\u017c",
+    "zeetrf;": "\u2128",
+    "zeta;": "\u03b6",
+    "zfr;": "\U0001d537",
+    "zhcy;": "\u0436",
+    "zigrarr;": "\u21dd",
+    "zopf;": "\U0001d56b",
+    "zscr;": "\U0001d4cf",
+    "zwj;": "\u200d",
+    "zwnj;": "\u200c",
+}
+
+replacementCharacters = {
+    0x0: "\uFFFD",
+    0x0d: "\u000D",
+    0x80: "\u20AC",
+    0x81: "\u0081",
+    0x82: "\u201A",
+    0x83: "\u0192",
+    0x84: "\u201E",
+    0x85: "\u2026",
+    0x86: "\u2020",
+    0x87: "\u2021",
+    0x88: "\u02C6",
+    0x89: "\u2030",
+    0x8A: "\u0160",
+    0x8B: "\u2039",
+    0x8C: "\u0152",
+    0x8D: "\u008D",
+    0x8E: "\u017D",
+    0x8F: "\u008F",
+    0x90: "\u0090",
+    0x91: "\u2018",
+    0x92: "\u2019",
+    0x93: "\u201C",
+    0x94: "\u201D",
+    0x95: "\u2022",
+    0x96: "\u2013",
+    0x97: "\u2014",
+    0x98: "\u02DC",
+    0x99: "\u2122",
+    0x9A: "\u0161",
+    0x9B: "\u203A",
+    0x9C: "\u0153",
+    0x9D: "\u009D",
+    0x9E: "\u017E",
+    0x9F: "\u0178",
+}
+
+tokenTypes = {
+    "Doctype": 0,
+    "Characters": 1,
+    "SpaceCharacters": 2,
+    "StartTag": 3,
+    "EndTag": 4,
+    "EmptyTag": 5,
+    "Comment": 6,
+    "ParseError": 7
+}
+
+tagTokenTypes = frozenset([tokenTypes["StartTag"], tokenTypes["EndTag"],
+                           tokenTypes["EmptyTag"]])
+
+
+prefixes = dict([(v, k) for k, v in namespaces.items()])
+prefixes["http://www.w3.org/1998/Math/MathML"] = "math"
+
+
+class DataLossWarning(UserWarning):
+    pass
+
+
+class ReparseException(Exception):
+    pass
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py
new file mode 100644
index 0000000..4795bae
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/alphabeticalattributes.py
@@ -0,0 +1,20 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from ordereddict import OrderedDict
+
+
+class Filter(base.Filter):
+    def __iter__(self):
+        for token in base.Filter.__iter__(self):
+            if token["type"] in ("StartTag", "EmptyTag"):
+                attrs = OrderedDict()
+                for name, value in sorted(token["data"].items(),
+                                          key=lambda x: x[0]):
+                    attrs[name] = value
+                token["data"] = attrs
+            yield token
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/base.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/base.py
new file mode 100644
index 0000000..c7dbaed
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/base.py
@@ -0,0 +1,12 @@
+from __future__ import absolute_import, division, unicode_literals
+
+
+class Filter(object):
+    def __init__(self, source):
+        self.source = source
+
+    def __iter__(self):
+        return iter(self.source)
+
+    def __getattr__(self, name):
+        return getattr(self.source, name)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py
new file mode 100644
index 0000000..2059ec8
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/inject_meta_charset.py
@@ -0,0 +1,65 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+
+class Filter(base.Filter):
+    def __init__(self, source, encoding):
+        base.Filter.__init__(self, source)
+        self.encoding = encoding
+
+    def __iter__(self):
+        state = "pre_head"
+        meta_found = (self.encoding is None)
+        pending = []
+
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type == "StartTag":
+                if token["name"].lower() == "head":
+                    state = "in_head"
+
+            elif type == "EmptyTag":
+                if token["name"].lower() == "meta":
+                    # replace charset with actual encoding
+                    has_http_equiv_content_type = False
+                    for (namespace, name), value in token["data"].items():
+                        if namespace is not None:
+                            continue
+                        elif name.lower() == 'charset':
+                            token["data"][(namespace, name)] = self.encoding
+                            meta_found = True
+                            break
+                        elif name == 'http-equiv' and value.lower() == 'content-type':
+                            has_http_equiv_content_type = True
+                    else:
+                        if has_http_equiv_content_type and (None, "content") in token["data"]:
+                            token["data"][(None, "content")] = 'text/html; charset=%s' % self.encoding
+                            meta_found = True
+
+                elif token["name"].lower() == "head" and not meta_found:
+                    # insert meta into empty head
+                    yield {"type": "StartTag", "name": "head",
+                           "data": token["data"]}
+                    yield {"type": "EmptyTag", "name": "meta",
+                           "data": {(None, "charset"): self.encoding}}
+                    yield {"type": "EndTag", "name": "head"}
+                    meta_found = True
+                    continue
+
+            elif type == "EndTag":
+                if token["name"].lower() == "head" and pending:
+                    # insert meta into head (if necessary) and flush pending queue
+                    yield pending.pop(0)
+                    if not meta_found:
+                        yield {"type": "EmptyTag", "name": "meta",
+                               "data": {(None, "charset"): self.encoding}}
+                    while pending:
+                        yield pending.pop(0)
+                    meta_found = True
+                    state = "post_head"
+
+            if state == "in_head":
+                pending.append(token)
+            else:
+                yield token
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/lint.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/lint.py
new file mode 100644
index 0000000..3b892c8
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/lint.py
@@ -0,0 +1,81 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from pip._vendor.six import text_type
+
+from . import base
+from ..constants import namespaces, voidElements
+
+from ..constants import spaceCharacters
+spaceCharacters = "".join(spaceCharacters)
+
+
+class Filter(base.Filter):
+    def __init__(self, source, require_matching_tags=True):
+        super(Filter, self).__init__(source)
+        self.require_matching_tags = require_matching_tags
+
+    def __iter__(self):
+        open_elements = []
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type in ("StartTag", "EmptyTag"):
+                namespace = token["namespace"]
+                name = token["name"]
+                assert namespace is None or isinstance(namespace, text_type)
+                assert namespace != ""
+                assert isinstance(name, text_type)
+                assert name != ""
+                assert isinstance(token["data"], dict)
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    assert type == "EmptyTag"
+                else:
+                    assert type == "StartTag"
+                if type == "StartTag" and self.require_matching_tags:
+                    open_elements.append((namespace, name))
+                for (namespace, name), value in token["data"].items():
+                    assert namespace is None or isinstance(namespace, text_type)
+                    assert namespace != ""
+                    assert isinstance(name, text_type)
+                    assert name != ""
+                    assert isinstance(value, text_type)
+
+            elif type == "EndTag":
+                namespace = token["namespace"]
+                name = token["name"]
+                assert namespace is None or isinstance(namespace, text_type)
+                assert namespace != ""
+                assert isinstance(name, text_type)
+                assert name != ""
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    assert False, "Void element reported as EndTag token: %(tag)s" % {"tag": name}
+                elif self.require_matching_tags:
+                    start = open_elements.pop()
+                    assert start == (namespace, name)
+
+            elif type == "Comment":
+                data = token["data"]
+                assert isinstance(data, text_type)
+
+            elif type in ("Characters", "SpaceCharacters"):
+                data = token["data"]
+                assert isinstance(data, text_type)
+                assert data != ""
+                if type == "SpaceCharacters":
+                    assert data.strip(spaceCharacters) == ""
+
+            elif type == "Doctype":
+                name = token["name"]
+                assert name is None or isinstance(name, text_type)
+                assert token["publicId"] is None or isinstance(name, text_type)
+                assert token["systemId"] is None or isinstance(name, text_type)
+
+            elif type == "Entity":
+                assert isinstance(token["name"], text_type)
+
+            elif type == "SerializerError":
+                assert isinstance(token["data"], text_type)
+
+            else:
+                assert False, "Unknown token type: %(type)s" % {"type": type}
+
+            yield token
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/optionaltags.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/optionaltags.py
new file mode 100644
index 0000000..f6edb73
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/optionaltags.py
@@ -0,0 +1,206 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import base
+
+
+class Filter(base.Filter):
+    def slider(self):
+        previous1 = previous2 = None
+        for token in self.source:
+            if previous1 is not None:
+                yield previous2, previous1, token
+            previous2 = previous1
+            previous1 = token
+        if previous1 is not None:
+            yield previous2, previous1, None
+
+    def __iter__(self):
+        for previous, token, next in self.slider():
+            type = token["type"]
+            if type == "StartTag":
+                if (token["data"] or
+                        not self.is_optional_start(token["name"], previous, next)):
+                    yield token
+            elif type == "EndTag":
+                if not self.is_optional_end(token["name"], next):
+                    yield token
+            else:
+                yield token
+
+    def is_optional_start(self, tagname, previous, next):
+        type = next and next["type"] or None
+        if tagname in 'html':
+            # An html element's start tag may be omitted if the first thing
+            # inside the html element is not a space character or a comment.
+            return type not in ("Comment", "SpaceCharacters")
+        elif tagname == 'head':
+            # A head element's start tag may be omitted if the first thing
+            # inside the head element is an element.
+            # XXX: we also omit the start tag if the head element is empty
+            if type in ("StartTag", "EmptyTag"):
+                return True
+            elif type == "EndTag":
+                return next["name"] == "head"
+        elif tagname == 'body':
+            # A body element's start tag may be omitted if the first thing
+            # inside the body element is not a space character or a comment,
+            # except if the first thing inside the body element is a script
+            # or style element and the node immediately preceding the body
+            # element is a head element whose end tag has been omitted.
+            if type in ("Comment", "SpaceCharacters"):
+                return False
+            elif type == "StartTag":
+                # XXX: we do not look at the preceding event, so we never omit
+                # the body element's start tag if it's followed by a script or
+                # a style element.
+                return next["name"] not in ('script', 'style')
+            else:
+                return True
+        elif tagname == 'colgroup':
+            # A colgroup element's start tag may be omitted if the first thing
+            # inside the colgroup element is a col element, and if the element
+            # is not immediately preceded by another colgroup element whose
+            # end tag has been omitted.
+            if type in ("StartTag", "EmptyTag"):
+                # XXX: we do not look at the preceding event, so instead we never
+                # omit the colgroup element's end tag when it is immediately
+                # followed by another colgroup element. See is_optional_end.
+                return next["name"] == "col"
+            else:
+                return False
+        elif tagname == 'tbody':
+            # A tbody element's start tag may be omitted if the first thing
+            # inside the tbody element is a tr element, and if the element is
+            # not immediately preceded by a tbody, thead, or tfoot element
+            # whose end tag has been omitted.
+            if type == "StartTag":
+                # omit the thead and tfoot elements' end tag when they are
+                # immediately followed by a tbody element. See is_optional_end.
+                if previous and previous['type'] == 'EndTag' and \
+                        previous['name'] in ('tbody', 'thead', 'tfoot'):
+                    return False
+                return next["name"] == 'tr'
+            else:
+                return False
+        return False
+
+    def is_optional_end(self, tagname, next):
+        type = next and next["type"] or None
+        if tagname in ('html', 'head', 'body'):
+            # An html element's end tag may be omitted if the html element
+            # is not immediately followed by a space character or a comment.
+            return type not in ("Comment", "SpaceCharacters")
+        elif tagname in ('li', 'optgroup', 'tr'):
+            # A li element's end tag may be omitted if the li element is
+            # immediately followed by another li element or if there is
+            # no more content in the parent element.
+            # An optgroup element's end tag may be omitted if the optgroup
+            # element is immediately followed by another optgroup element,
+            # or if there is no more content in the parent element.
+            # A tr element's end tag may be omitted if the tr element is
+            # immediately followed by another tr element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] == tagname
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('dt', 'dd'):
+            # A dt element's end tag may be omitted if the dt element is
+            # immediately followed by another dt element or a dd element.
+            # A dd element's end tag may be omitted if the dd element is
+            # immediately followed by another dd element or a dt element,
+            # or if there is no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('dt', 'dd')
+            elif tagname == 'dd':
+                return type == "EndTag" or type is None
+            else:
+                return False
+        elif tagname == 'p':
+            # A p element's end tag may be omitted if the p element is
+            # immediately followed by an address, article, aside,
+            # blockquote, datagrid, dialog, dir, div, dl, fieldset,
+            # footer, form, h1, h2, h3, h4, h5, h6, header, hr, menu,
+            # nav, ol, p, pre, section, table, or ul, element, or if
+            # there is no more content in the parent element.
+            if type in ("StartTag", "EmptyTag"):
+                return next["name"] in ('address', 'article', 'aside',
+                                        'blockquote', 'datagrid', 'dialog',
+                                        'dir', 'div', 'dl', 'fieldset', 'footer',
+                                        'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
+                                        'header', 'hr', 'menu', 'nav', 'ol',
+                                        'p', 'pre', 'section', 'table', 'ul')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname == 'option':
+            # An option element's end tag may be omitted if the option
+            # element is immediately followed by another option element,
+            # or if it is immediately followed by an <code>optgroup</code>
+            # element, or if there is no more content in the parent
+            # element.
+            if type == "StartTag":
+                return next["name"] in ('option', 'optgroup')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('rt', 'rp'):
+            # An rt element's end tag may be omitted if the rt element is
+            # immediately followed by an rt or rp element, or if there is
+            # no more content in the parent element.
+            # An rp element's end tag may be omitted if the rp element is
+            # immediately followed by an rt or rp element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('rt', 'rp')
+            else:
+                return type == "EndTag" or type is None
+        elif tagname == 'colgroup':
+            # A colgroup element's end tag may be omitted if the colgroup
+            # element is not immediately followed by a space character or
+            # a comment.
+            if type in ("Comment", "SpaceCharacters"):
+                return False
+            elif type == "StartTag":
+                # XXX: we also look for an immediately following colgroup
+                # element. See is_optional_start.
+                return next["name"] != 'colgroup'
+            else:
+                return True
+        elif tagname in ('thead', 'tbody'):
+            # A thead element's end tag may be omitted if the thead element
+            # is immediately followed by a tbody or tfoot element.
+            # A tbody element's end tag may be omitted if the tbody element
+            # is immediately followed by a tbody or tfoot element, or if
+            # there is no more content in the parent element.
+            # A tfoot element's end tag may be omitted if the tfoot element
+            # is immediately followed by a tbody element, or if there is no
+            # more content in the parent element.
+            # XXX: we never omit the end tag when the following element is
+            # a tbody. See is_optional_start.
+            if type == "StartTag":
+                return next["name"] in ['tbody', 'tfoot']
+            elif tagname == 'tbody':
+                return type == "EndTag" or type is None
+            else:
+                return False
+        elif tagname == 'tfoot':
+            # A tfoot element's end tag may be omitted if the tfoot element
+            # is immediately followed by a tbody element, or if there is no
+            # more content in the parent element.
+            # XXX: we never omit the end tag when the following element is
+            # a tbody. See is_optional_start.
+            if type == "StartTag":
+                return next["name"] == 'tbody'
+            else:
+                return type == "EndTag" or type is None
+        elif tagname in ('td', 'th'):
+            # A td element's end tag may be omitted if the td element is
+            # immediately followed by a td or th element, or if there is
+            # no more content in the parent element.
+            # A th element's end tag may be omitted if the th element is
+            # immediately followed by a td or th element, or if there is
+            # no more content in the parent element.
+            if type == "StartTag":
+                return next["name"] in ('td', 'th')
+            else:
+                return type == "EndTag" or type is None
+        return False
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/sanitizer.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/sanitizer.py
new file mode 100644
index 0000000..026748d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/sanitizer.py
@@ -0,0 +1,865 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+from xml.sax.saxutils import escape, unescape
+
+from pip._vendor.six.moves import urllib_parse as urlparse
+
+from . import base
+from ..constants import namespaces, prefixes
+
+__all__ = ["Filter"]
+
+
+allowed_elements = frozenset((
+    (namespaces['html'], 'a'),
+    (namespaces['html'], 'abbr'),
+    (namespaces['html'], 'acronym'),
+    (namespaces['html'], 'address'),
+    (namespaces['html'], 'area'),
+    (namespaces['html'], 'article'),
+    (namespaces['html'], 'aside'),
+    (namespaces['html'], 'audio'),
+    (namespaces['html'], 'b'),
+    (namespaces['html'], 'big'),
+    (namespaces['html'], 'blockquote'),
+    (namespaces['html'], 'br'),
+    (namespaces['html'], 'button'),
+    (namespaces['html'], 'canvas'),
+    (namespaces['html'], 'caption'),
+    (namespaces['html'], 'center'),
+    (namespaces['html'], 'cite'),
+    (namespaces['html'], 'code'),
+    (namespaces['html'], 'col'),
+    (namespaces['html'], 'colgroup'),
+    (namespaces['html'], 'command'),
+    (namespaces['html'], 'datagrid'),
+    (namespaces['html'], 'datalist'),
+    (namespaces['html'], 'dd'),
+    (namespaces['html'], 'del'),
+    (namespaces['html'], 'details'),
+    (namespaces['html'], 'dfn'),
+    (namespaces['html'], 'dialog'),
+    (namespaces['html'], 'dir'),
+    (namespaces['html'], 'div'),
+    (namespaces['html'], 'dl'),
+    (namespaces['html'], 'dt'),
+    (namespaces['html'], 'em'),
+    (namespaces['html'], 'event-source'),
+    (namespaces['html'], 'fieldset'),
+    (namespaces['html'], 'figcaption'),
+    (namespaces['html'], 'figure'),
+    (namespaces['html'], 'footer'),
+    (namespaces['html'], 'font'),
+    (namespaces['html'], 'form'),
+    (namespaces['html'], 'header'),
+    (namespaces['html'], 'h1'),
+    (namespaces['html'], 'h2'),
+    (namespaces['html'], 'h3'),
+    (namespaces['html'], 'h4'),
+    (namespaces['html'], 'h5'),
+    (namespaces['html'], 'h6'),
+    (namespaces['html'], 'hr'),
+    (namespaces['html'], 'i'),
+    (namespaces['html'], 'img'),
+    (namespaces['html'], 'input'),
+    (namespaces['html'], 'ins'),
+    (namespaces['html'], 'keygen'),
+    (namespaces['html'], 'kbd'),
+    (namespaces['html'], 'label'),
+    (namespaces['html'], 'legend'),
+    (namespaces['html'], 'li'),
+    (namespaces['html'], 'm'),
+    (namespaces['html'], 'map'),
+    (namespaces['html'], 'menu'),
+    (namespaces['html'], 'meter'),
+    (namespaces['html'], 'multicol'),
+    (namespaces['html'], 'nav'),
+    (namespaces['html'], 'nextid'),
+    (namespaces['html'], 'ol'),
+    (namespaces['html'], 'output'),
+    (namespaces['html'], 'optgroup'),
+    (namespaces['html'], 'option'),
+    (namespaces['html'], 'p'),
+    (namespaces['html'], 'pre'),
+    (namespaces['html'], 'progress'),
+    (namespaces['html'], 'q'),
+    (namespaces['html'], 's'),
+    (namespaces['html'], 'samp'),
+    (namespaces['html'], 'section'),
+    (namespaces['html'], 'select'),
+    (namespaces['html'], 'small'),
+    (namespaces['html'], 'sound'),
+    (namespaces['html'], 'source'),
+    (namespaces['html'], 'spacer'),
+    (namespaces['html'], 'span'),
+    (namespaces['html'], 'strike'),
+    (namespaces['html'], 'strong'),
+    (namespaces['html'], 'sub'),
+    (namespaces['html'], 'sup'),
+    (namespaces['html'], 'table'),
+    (namespaces['html'], 'tbody'),
+    (namespaces['html'], 'td'),
+    (namespaces['html'], 'textarea'),
+    (namespaces['html'], 'time'),
+    (namespaces['html'], 'tfoot'),
+    (namespaces['html'], 'th'),
+    (namespaces['html'], 'thead'),
+    (namespaces['html'], 'tr'),
+    (namespaces['html'], 'tt'),
+    (namespaces['html'], 'u'),
+    (namespaces['html'], 'ul'),
+    (namespaces['html'], 'var'),
+    (namespaces['html'], 'video'),
+    (namespaces['mathml'], 'maction'),
+    (namespaces['mathml'], 'math'),
+    (namespaces['mathml'], 'merror'),
+    (namespaces['mathml'], 'mfrac'),
+    (namespaces['mathml'], 'mi'),
+    (namespaces['mathml'], 'mmultiscripts'),
+    (namespaces['mathml'], 'mn'),
+    (namespaces['mathml'], 'mo'),
+    (namespaces['mathml'], 'mover'),
+    (namespaces['mathml'], 'mpadded'),
+    (namespaces['mathml'], 'mphantom'),
+    (namespaces['mathml'], 'mprescripts'),
+    (namespaces['mathml'], 'mroot'),
+    (namespaces['mathml'], 'mrow'),
+    (namespaces['mathml'], 'mspace'),
+    (namespaces['mathml'], 'msqrt'),
+    (namespaces['mathml'], 'mstyle'),
+    (namespaces['mathml'], 'msub'),
+    (namespaces['mathml'], 'msubsup'),
+    (namespaces['mathml'], 'msup'),
+    (namespaces['mathml'], 'mtable'),
+    (namespaces['mathml'], 'mtd'),
+    (namespaces['mathml'], 'mtext'),
+    (namespaces['mathml'], 'mtr'),
+    (namespaces['mathml'], 'munder'),
+    (namespaces['mathml'], 'munderover'),
+    (namespaces['mathml'], 'none'),
+    (namespaces['svg'], 'a'),
+    (namespaces['svg'], 'animate'),
+    (namespaces['svg'], 'animateColor'),
+    (namespaces['svg'], 'animateMotion'),
+    (namespaces['svg'], 'animateTransform'),
+    (namespaces['svg'], 'clipPath'),
+    (namespaces['svg'], 'circle'),
+    (namespaces['svg'], 'defs'),
+    (namespaces['svg'], 'desc'),
+    (namespaces['svg'], 'ellipse'),
+    (namespaces['svg'], 'font-face'),
+    (namespaces['svg'], 'font-face-name'),
+    (namespaces['svg'], 'font-face-src'),
+    (namespaces['svg'], 'g'),
+    (namespaces['svg'], 'glyph'),
+    (namespaces['svg'], 'hkern'),
+    (namespaces['svg'], 'linearGradient'),
+    (namespaces['svg'], 'line'),
+    (namespaces['svg'], 'marker'),
+    (namespaces['svg'], 'metadata'),
+    (namespaces['svg'], 'missing-glyph'),
+    (namespaces['svg'], 'mpath'),
+    (namespaces['svg'], 'path'),
+    (namespaces['svg'], 'polygon'),
+    (namespaces['svg'], 'polyline'),
+    (namespaces['svg'], 'radialGradient'),
+    (namespaces['svg'], 'rect'),
+    (namespaces['svg'], 'set'),
+    (namespaces['svg'], 'stop'),
+    (namespaces['svg'], 'svg'),
+    (namespaces['svg'], 'switch'),
+    (namespaces['svg'], 'text'),
+    (namespaces['svg'], 'title'),
+    (namespaces['svg'], 'tspan'),
+    (namespaces['svg'], 'use'),
+))
+
+allowed_attributes = frozenset((
+    # HTML attributes
+    (None, 'abbr'),
+    (None, 'accept'),
+    (None, 'accept-charset'),
+    (None, 'accesskey'),
+    (None, 'action'),
+    (None, 'align'),
+    (None, 'alt'),
+    (None, 'autocomplete'),
+    (None, 'autofocus'),
+    (None, 'axis'),
+    (None, 'background'),
+    (None, 'balance'),
+    (None, 'bgcolor'),
+    (None, 'bgproperties'),
+    (None, 'border'),
+    (None, 'bordercolor'),
+    (None, 'bordercolordark'),
+    (None, 'bordercolorlight'),
+    (None, 'bottompadding'),
+    (None, 'cellpadding'),
+    (None, 'cellspacing'),
+    (None, 'ch'),
+    (None, 'challenge'),
+    (None, 'char'),
+    (None, 'charoff'),
+    (None, 'choff'),
+    (None, 'charset'),
+    (None, 'checked'),
+    (None, 'cite'),
+    (None, 'class'),
+    (None, 'clear'),
+    (None, 'color'),
+    (None, 'cols'),
+    (None, 'colspan'),
+    (None, 'compact'),
+    (None, 'contenteditable'),
+    (None, 'controls'),
+    (None, 'coords'),
+    (None, 'data'),
+    (None, 'datafld'),
+    (None, 'datapagesize'),
+    (None, 'datasrc'),
+    (None, 'datetime'),
+    (None, 'default'),
+    (None, 'delay'),
+    (None, 'dir'),
+    (None, 'disabled'),
+    (None, 'draggable'),
+    (None, 'dynsrc'),
+    (None, 'enctype'),
+    (None, 'end'),
+    (None, 'face'),
+    (None, 'for'),
+    (None, 'form'),
+    (None, 'frame'),
+    (None, 'galleryimg'),
+    (None, 'gutter'),
+    (None, 'headers'),
+    (None, 'height'),
+    (None, 'hidefocus'),
+    (None, 'hidden'),
+    (None, 'high'),
+    (None, 'href'),
+    (None, 'hreflang'),
+    (None, 'hspace'),
+    (None, 'icon'),
+    (None, 'id'),
+    (None, 'inputmode'),
+    (None, 'ismap'),
+    (None, 'keytype'),
+    (None, 'label'),
+    (None, 'leftspacing'),
+    (None, 'lang'),
+    (None, 'list'),
+    (None, 'longdesc'),
+    (None, 'loop'),
+    (None, 'loopcount'),
+    (None, 'loopend'),
+    (None, 'loopstart'),
+    (None, 'low'),
+    (None, 'lowsrc'),
+    (None, 'max'),
+    (None, 'maxlength'),
+    (None, 'media'),
+    (None, 'method'),
+    (None, 'min'),
+    (None, 'multiple'),
+    (None, 'name'),
+    (None, 'nohref'),
+    (None, 'noshade'),
+    (None, 'nowrap'),
+    (None, 'open'),
+    (None, 'optimum'),
+    (None, 'pattern'),
+    (None, 'ping'),
+    (None, 'point-size'),
+    (None, 'poster'),
+    (None, 'pqg'),
+    (None, 'preload'),
+    (None, 'prompt'),
+    (None, 'radiogroup'),
+    (None, 'readonly'),
+    (None, 'rel'),
+    (None, 'repeat-max'),
+    (None, 'repeat-min'),
+    (None, 'replace'),
+    (None, 'required'),
+    (None, 'rev'),
+    (None, 'rightspacing'),
+    (None, 'rows'),
+    (None, 'rowspan'),
+    (None, 'rules'),
+    (None, 'scope'),
+    (None, 'selected'),
+    (None, 'shape'),
+    (None, 'size'),
+    (None, 'span'),
+    (None, 'src'),
+    (None, 'start'),
+    (None, 'step'),
+    (None, 'style'),
+    (None, 'summary'),
+    (None, 'suppress'),
+    (None, 'tabindex'),
+    (None, 'target'),
+    (None, 'template'),
+    (None, 'title'),
+    (None, 'toppadding'),
+    (None, 'type'),
+    (None, 'unselectable'),
+    (None, 'usemap'),
+    (None, 'urn'),
+    (None, 'valign'),
+    (None, 'value'),
+    (None, 'variable'),
+    (None, 'volume'),
+    (None, 'vspace'),
+    (None, 'vrml'),
+    (None, 'width'),
+    (None, 'wrap'),
+    (namespaces['xml'], 'lang'),
+    # MathML attributes
+    (None, 'actiontype'),
+    (None, 'align'),
+    (None, 'columnalign'),
+    (None, 'columnalign'),
+    (None, 'columnalign'),
+    (None, 'columnlines'),
+    (None, 'columnspacing'),
+    (None, 'columnspan'),
+    (None, 'depth'),
+    (None, 'display'),
+    (None, 'displaystyle'),
+    (None, 'equalcolumns'),
+    (None, 'equalrows'),
+    (None, 'fence'),
+    (None, 'fontstyle'),
+    (None, 'fontweight'),
+    (None, 'frame'),
+    (None, 'height'),
+    (None, 'linethickness'),
+    (None, 'lspace'),
+    (None, 'mathbackground'),
+    (None, 'mathcolor'),
+    (None, 'mathvariant'),
+    (None, 'mathvariant'),
+    (None, 'maxsize'),
+    (None, 'minsize'),
+    (None, 'other'),
+    (None, 'rowalign'),
+    (None, 'rowalign'),
+    (None, 'rowalign'),
+    (None, 'rowlines'),
+    (None, 'rowspacing'),
+    (None, 'rowspan'),
+    (None, 'rspace'),
+    (None, 'scriptlevel'),
+    (None, 'selection'),
+    (None, 'separator'),
+    (None, 'stretchy'),
+    (None, 'width'),
+    (None, 'width'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xlink'], 'show'),
+    (namespaces['xlink'], 'type'),
+    # SVG attributes
+    (None, 'accent-height'),
+    (None, 'accumulate'),
+    (None, 'additive'),
+    (None, 'alphabetic'),
+    (None, 'arabic-form'),
+    (None, 'ascent'),
+    (None, 'attributeName'),
+    (None, 'attributeType'),
+    (None, 'baseProfile'),
+    (None, 'bbox'),
+    (None, 'begin'),
+    (None, 'by'),
+    (None, 'calcMode'),
+    (None, 'cap-height'),
+    (None, 'class'),
+    (None, 'clip-path'),
+    (None, 'color'),
+    (None, 'color-rendering'),
+    (None, 'content'),
+    (None, 'cx'),
+    (None, 'cy'),
+    (None, 'd'),
+    (None, 'dx'),
+    (None, 'dy'),
+    (None, 'descent'),
+    (None, 'display'),
+    (None, 'dur'),
+    (None, 'end'),
+    (None, 'fill'),
+    (None, 'fill-opacity'),
+    (None, 'fill-rule'),
+    (None, 'font-family'),
+    (None, 'font-size'),
+    (None, 'font-stretch'),
+    (None, 'font-style'),
+    (None, 'font-variant'),
+    (None, 'font-weight'),
+    (None, 'from'),
+    (None, 'fx'),
+    (None, 'fy'),
+    (None, 'g1'),
+    (None, 'g2'),
+    (None, 'glyph-name'),
+    (None, 'gradientUnits'),
+    (None, 'hanging'),
+    (None, 'height'),
+    (None, 'horiz-adv-x'),
+    (None, 'horiz-origin-x'),
+    (None, 'id'),
+    (None, 'ideographic'),
+    (None, 'k'),
+    (None, 'keyPoints'),
+    (None, 'keySplines'),
+    (None, 'keyTimes'),
+    (None, 'lang'),
+    (None, 'marker-end'),
+    (None, 'marker-mid'),
+    (None, 'marker-start'),
+    (None, 'markerHeight'),
+    (None, 'markerUnits'),
+    (None, 'markerWidth'),
+    (None, 'mathematical'),
+    (None, 'max'),
+    (None, 'min'),
+    (None, 'name'),
+    (None, 'offset'),
+    (None, 'opacity'),
+    (None, 'orient'),
+    (None, 'origin'),
+    (None, 'overline-position'),
+    (None, 'overline-thickness'),
+    (None, 'panose-1'),
+    (None, 'path'),
+    (None, 'pathLength'),
+    (None, 'points'),
+    (None, 'preserveAspectRatio'),
+    (None, 'r'),
+    (None, 'refX'),
+    (None, 'refY'),
+    (None, 'repeatCount'),
+    (None, 'repeatDur'),
+    (None, 'requiredExtensions'),
+    (None, 'requiredFeatures'),
+    (None, 'restart'),
+    (None, 'rotate'),
+    (None, 'rx'),
+    (None, 'ry'),
+    (None, 'slope'),
+    (None, 'stemh'),
+    (None, 'stemv'),
+    (None, 'stop-color'),
+    (None, 'stop-opacity'),
+    (None, 'strikethrough-position'),
+    (None, 'strikethrough-thickness'),
+    (None, 'stroke'),
+    (None, 'stroke-dasharray'),
+    (None, 'stroke-dashoffset'),
+    (None, 'stroke-linecap'),
+    (None, 'stroke-linejoin'),
+    (None, 'stroke-miterlimit'),
+    (None, 'stroke-opacity'),
+    (None, 'stroke-width'),
+    (None, 'systemLanguage'),
+    (None, 'target'),
+    (None, 'text-anchor'),
+    (None, 'to'),
+    (None, 'transform'),
+    (None, 'type'),
+    (None, 'u1'),
+    (None, 'u2'),
+    (None, 'underline-position'),
+    (None, 'underline-thickness'),
+    (None, 'unicode'),
+    (None, 'unicode-range'),
+    (None, 'units-per-em'),
+    (None, 'values'),
+    (None, 'version'),
+    (None, 'viewBox'),
+    (None, 'visibility'),
+    (None, 'width'),
+    (None, 'widths'),
+    (None, 'x'),
+    (None, 'x-height'),
+    (None, 'x1'),
+    (None, 'x2'),
+    (namespaces['xlink'], 'actuate'),
+    (namespaces['xlink'], 'arcrole'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xlink'], 'role'),
+    (namespaces['xlink'], 'show'),
+    (namespaces['xlink'], 'title'),
+    (namespaces['xlink'], 'type'),
+    (namespaces['xml'], 'base'),
+    (namespaces['xml'], 'lang'),
+    (namespaces['xml'], 'space'),
+    (None, 'y'),
+    (None, 'y1'),
+    (None, 'y2'),
+    (None, 'zoomAndPan'),
+))
+
+attr_val_is_uri = frozenset((
+    (None, 'href'),
+    (None, 'src'),
+    (None, 'cite'),
+    (None, 'action'),
+    (None, 'longdesc'),
+    (None, 'poster'),
+    (None, 'background'),
+    (None, 'datasrc'),
+    (None, 'dynsrc'),
+    (None, 'lowsrc'),
+    (None, 'ping'),
+    (namespaces['xlink'], 'href'),
+    (namespaces['xml'], 'base'),
+))
+
+svg_attr_val_allows_ref = frozenset((
+    (None, 'clip-path'),
+    (None, 'color-profile'),
+    (None, 'cursor'),
+    (None, 'fill'),
+    (None, 'filter'),
+    (None, 'marker'),
+    (None, 'marker-start'),
+    (None, 'marker-mid'),
+    (None, 'marker-end'),
+    (None, 'mask'),
+    (None, 'stroke'),
+))
+
+svg_allow_local_href = frozenset((
+    (None, 'altGlyph'),
+    (None, 'animate'),
+    (None, 'animateColor'),
+    (None, 'animateMotion'),
+    (None, 'animateTransform'),
+    (None, 'cursor'),
+    (None, 'feImage'),
+    (None, 'filter'),
+    (None, 'linearGradient'),
+    (None, 'pattern'),
+    (None, 'radialGradient'),
+    (None, 'textpath'),
+    (None, 'tref'),
+    (None, 'set'),
+    (None, 'use')
+))
+
+allowed_css_properties = frozenset((
+    'azimuth',
+    'background-color',
+    'border-bottom-color',
+    'border-collapse',
+    'border-color',
+    'border-left-color',
+    'border-right-color',
+    'border-top-color',
+    'clear',
+    'color',
+    'cursor',
+    'direction',
+    'display',
+    'elevation',
+    'float',
+    'font',
+    'font-family',
+    'font-size',
+    'font-style',
+    'font-variant',
+    'font-weight',
+    'height',
+    'letter-spacing',
+    'line-height',
+    'overflow',
+    'pause',
+    'pause-after',
+    'pause-before',
+    'pitch',
+    'pitch-range',
+    'richness',
+    'speak',
+    'speak-header',
+    'speak-numeral',
+    'speak-punctuation',
+    'speech-rate',
+    'stress',
+    'text-align',
+    'text-decoration',
+    'text-indent',
+    'unicode-bidi',
+    'vertical-align',
+    'voice-family',
+    'volume',
+    'white-space',
+    'width',
+))
+
+allowed_css_keywords = frozenset((
+    'auto',
+    'aqua',
+    'black',
+    'block',
+    'blue',
+    'bold',
+    'both',
+    'bottom',
+    'brown',
+    'center',
+    'collapse',
+    'dashed',
+    'dotted',
+    'fuchsia',
+    'gray',
+    'green',
+    '!important',
+    'italic',
+    'left',
+    'lime',
+    'maroon',
+    'medium',
+    'none',
+    'navy',
+    'normal',
+    'nowrap',
+    'olive',
+    'pointer',
+    'purple',
+    'red',
+    'right',
+    'solid',
+    'silver',
+    'teal',
+    'top',
+    'transparent',
+    'underline',
+    'white',
+    'yellow',
+))
+
+allowed_svg_properties = frozenset((
+    'fill',
+    'fill-opacity',
+    'fill-rule',
+    'stroke',
+    'stroke-width',
+    'stroke-linecap',
+    'stroke-linejoin',
+    'stroke-opacity',
+))
+
+allowed_protocols = frozenset((
+    'ed2k',
+    'ftp',
+    'http',
+    'https',
+    'irc',
+    'mailto',
+    'news',
+    'gopher',
+    'nntp',
+    'telnet',
+    'webcal',
+    'xmpp',
+    'callto',
+    'feed',
+    'urn',
+    'aim',
+    'rsync',
+    'tag',
+    'ssh',
+    'sftp',
+    'rtsp',
+    'afs',
+    'data',
+))
+
+allowed_content_types = frozenset((
+    'image/png',
+    'image/jpeg',
+    'image/gif',
+    'image/webp',
+    'image/bmp',
+    'text/plain',
+))
+
+
+data_content_type = re.compile(r'''
+                                ^
+                                # Match a content type <application>/<type>
+                                (?P<content_type>[-a-zA-Z0-9.]+/[-a-zA-Z0-9.]+)
+                                # Match any character set and encoding
+                                (?:(?:;charset=(?:[-a-zA-Z0-9]+)(?:;(?:base64))?)
+                                  |(?:;(?:base64))?(?:;charset=(?:[-a-zA-Z0-9]+))?)
+                                # Assume the rest is data
+                                ,.*
+                                $
+                                ''',
+                               re.VERBOSE)
+
+
+class Filter(base.Filter):
+    """ sanitization of XHTML+MathML+SVG and of inline style attributes."""
+    def __init__(self,
+                 source,
+                 allowed_elements=allowed_elements,
+                 allowed_attributes=allowed_attributes,
+                 allowed_css_properties=allowed_css_properties,
+                 allowed_css_keywords=allowed_css_keywords,
+                 allowed_svg_properties=allowed_svg_properties,
+                 allowed_protocols=allowed_protocols,
+                 allowed_content_types=allowed_content_types,
+                 attr_val_is_uri=attr_val_is_uri,
+                 svg_attr_val_allows_ref=svg_attr_val_allows_ref,
+                 svg_allow_local_href=svg_allow_local_href):
+        super(Filter, self).__init__(source)
+        self.allowed_elements = allowed_elements
+        self.allowed_attributes = allowed_attributes
+        self.allowed_css_properties = allowed_css_properties
+        self.allowed_css_keywords = allowed_css_keywords
+        self.allowed_svg_properties = allowed_svg_properties
+        self.allowed_protocols = allowed_protocols
+        self.allowed_content_types = allowed_content_types
+        self.attr_val_is_uri = attr_val_is_uri
+        self.svg_attr_val_allows_ref = svg_attr_val_allows_ref
+        self.svg_allow_local_href = svg_allow_local_href
+
+    def __iter__(self):
+        for token in base.Filter.__iter__(self):
+            token = self.sanitize_token(token)
+            if token:
+                yield token
+
+    # Sanitize the +html+, escaping all elements not in ALLOWED_ELEMENTS, and
+    # stripping out all # attributes not in ALLOWED_ATTRIBUTES. Style
+    # attributes are parsed, and a restricted set, # specified by
+    # ALLOWED_CSS_PROPERTIES and ALLOWED_CSS_KEYWORDS, are allowed through.
+    # attributes in ATTR_VAL_IS_URI are scanned, and only URI schemes specified
+    # in ALLOWED_PROTOCOLS are allowed.
+    #
+    #   sanitize_html('<script> do_nasty_stuff() </script>')
+    #    => <script> do_nasty_stuff() </script>
+    #   sanitize_html('<a href="javascript: sucker();">Click here for $100</a>')
+    #    => <a>Click here for $100</a>
+    def sanitize_token(self, token):
+
+        # accommodate filters which use token_type differently
+        token_type = token["type"]
+        if token_type in ("StartTag", "EndTag", "EmptyTag"):
+            name = token["name"]
+            namespace = token["namespace"]
+            if ((namespace, name) in self.allowed_elements or
+                (namespace is None and
+                 (namespaces["html"], name) in self.allowed_elements)):
+                return self.allowed_token(token)
+            else:
+                return self.disallowed_token(token)
+        elif token_type == "Comment":
+            pass
+        else:
+            return token
+
+    def allowed_token(self, token):
+        if "data" in token:
+            attrs = token["data"]
+            attr_names = set(attrs.keys())
+
+            # Remove forbidden attributes
+            for to_remove in (attr_names - self.allowed_attributes):
+                del token["data"][to_remove]
+                attr_names.remove(to_remove)
+
+            # Remove attributes with disallowed URL values
+            for attr in (attr_names & self.attr_val_is_uri):
+                assert attr in attrs
+                # I don't have a clue where this regexp comes from or why it matches those
+                # characters, nor why we call unescape. I just know it's always been here.
+                # Should you be worried by this comment in a sanitizer? Yes. On the other hand, all
+                # this will do is remove *more* than it otherwise would.
+                val_unescaped = re.sub("[`\x00-\x20\x7f-\xa0\s]+", '',
+                                       unescape(attrs[attr])).lower()
+                # remove replacement characters from unescaped characters
+                val_unescaped = val_unescaped.replace("\ufffd", "")
+                try:
+                    uri = urlparse.urlparse(val_unescaped)
+                except ValueError:
+                    uri = None
+                    del attrs[attr]
+                if uri and uri.scheme:
+                    if uri.scheme not in self.allowed_protocols:
+                        del attrs[attr]
+                    if uri.scheme == 'data':
+                        m = data_content_type.match(uri.path)
+                        if not m:
+                            del attrs[attr]
+                        elif m.group('content_type') not in self.allowed_content_types:
+                            del attrs[attr]
+
+            for attr in self.svg_attr_val_allows_ref:
+                if attr in attrs:
+                    attrs[attr] = re.sub(r'url\s*\(\s*[^#\s][^)]+?\)',
+                                         ' ',
+                                         unescape(attrs[attr]))
+            if (token["name"] in self.svg_allow_local_href and
+                (namespaces['xlink'], 'href') in attrs and re.search('^\s*[^#\s].*',
+                                                                     attrs[(namespaces['xlink'], 'href')])):
+                del attrs[(namespaces['xlink'], 'href')]
+            if (None, 'style') in attrs:
+                attrs[(None, 'style')] = self.sanitize_css(attrs[(None, 'style')])
+            token["data"] = attrs
+        return token
+
+    def disallowed_token(self, token):
+        token_type = token["type"]
+        if token_type == "EndTag":
+            token["data"] = "</%s>" % token["name"]
+        elif token["data"]:
+            assert token_type in ("StartTag", "EmptyTag")
+            attrs = []
+            for (ns, name), v in token["data"].items():
+                attrs.append(' %s="%s"' % (name if ns is None else "%s:%s" % (prefixes[ns], name), escape(v)))
+            token["data"] = "<%s%s>" % (token["name"], ''.join(attrs))
+        else:
+            token["data"] = "<%s>" % token["name"]
+        if token.get("selfClosing"):
+            token["data"] = token["data"][:-1] + "/>"
+
+        token["type"] = "Characters"
+
+        del token["name"]
+        return token
+
+    def sanitize_css(self, style):
+        # disallow urls
+        style = re.compile('url\s*\(\s*[^\s)]+?\s*\)\s*').sub(' ', style)
+
+        # gauntlet
+        if not re.match("""^([:,;#%.\sa-zA-Z0-9!]|\w-\w|'[\s\w]+'|"[\s\w]+"|\([\d,\s]+\))*$""", style):
+            return ''
+        if not re.match("^\s*([-\w]+\s*:[^:;]*(;\s*|$))*$", style):
+            return ''
+
+        clean = []
+        for prop, value in re.findall("([-\w]+)\s*:\s*([^:;]*)", style):
+            if not value:
+                continue
+            if prop.lower() in self.allowed_css_properties:
+                clean.append(prop + ': ' + value + ';')
+            elif prop.split('-')[0].lower() in ['background', 'border', 'margin',
+                                                'padding']:
+                for keyword in value.split():
+                    if keyword not in self.allowed_css_keywords and \
+                            not re.match("^(#[0-9a-f]+|rgb\(\d+%?,\d*%?,?\d*%?\)?|\d{0,2}\.?\d{0,2}(cm|em|ex|in|mm|pc|pt|px|%|,|\))?)$", keyword):  # noqa
+                        break
+                else:
+                    clean.append(prop + ': ' + value + ';')
+            elif prop.lower() in self.allowed_svg_properties:
+                clean.append(prop + ': ' + value + ';')
+
+        return ' '.join(clean)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/whitespace.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/whitespace.py
new file mode 100644
index 0000000..8921052
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/filters/whitespace.py
@@ -0,0 +1,38 @@
+from __future__ import absolute_import, division, unicode_literals
+
+import re
+
+from . import base
+from ..constants import rcdataElements, spaceCharacters
+spaceCharacters = "".join(spaceCharacters)
+
+SPACES_REGEX = re.compile("[%s]+" % spaceCharacters)
+
+
+class Filter(base.Filter):
+
+    spacePreserveElements = frozenset(["pre", "textarea"] + list(rcdataElements))
+
+    def __iter__(self):
+        preserve = 0
+        for token in base.Filter.__iter__(self):
+            type = token["type"]
+            if type == "StartTag" \
+                    and (preserve or token["name"] in self.spacePreserveElements):
+                preserve += 1
+
+            elif type == "EndTag" and preserve:
+                preserve -= 1
+
+            elif not preserve and type == "SpaceCharacters" and token["data"]:
+                # Test on token["data"] above to not introduce spaces where there were not
+                token["data"] = " "
+
+            elif not preserve and type == "Characters":
+                token["data"] = collapse_spaces(token["data"])
+
+            yield token
+
+
+def collapse_spaces(text):
+    return SPACES_REGEX.sub(' ', text)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/html5parser.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/html5parser.py
new file mode 100644
index 0000000..f7043cb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/html5parser.py
@@ -0,0 +1,2733 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import with_metaclass, viewkeys, PY3
+
+import types
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from pip._vendor.ordereddict import OrderedDict
+
+from . import _inputstream
+from . import _tokenizer
+
+from . import treebuilders
+from .treebuilders.base import Marker
+
+from . import _utils
+from .constants import (
+    spaceCharacters, asciiUpper2Lower,
+    specialElements, headingElements, cdataElements, rcdataElements,
+    tokenTypes, tagTokenTypes,
+    namespaces,
+    htmlIntegrationPointElements, mathmlTextIntegrationPointElements,
+    adjustForeignAttributes as adjustForeignAttributesMap,
+    adjustMathMLAttributes, adjustSVGAttributes,
+    E,
+    ReparseException
+)
+
+
+def parse(doc, treebuilder="etree", namespaceHTMLElements=True, **kwargs):
+    """Parse a string or file-like object into a tree"""
+    tb = treebuilders.getTreeBuilder(treebuilder)
+    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)
+    return p.parse(doc, **kwargs)
+
+
+def parseFragment(doc, container="div", treebuilder="etree", namespaceHTMLElements=True, **kwargs):
+    tb = treebuilders.getTreeBuilder(treebuilder)
+    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)
+    return p.parseFragment(doc, container=container, **kwargs)
+
+
+def method_decorator_metaclass(function):
+    class Decorated(type):
+        def __new__(meta, classname, bases, classDict):
+            for attributeName, attribute in classDict.items():
+                if isinstance(attribute, types.FunctionType):
+                    attribute = function(attribute)
+
+                classDict[attributeName] = attribute
+            return type.__new__(meta, classname, bases, classDict)
+    return Decorated
+
+
+class HTMLParser(object):
+    """HTML parser. Generates a tree structure from a stream of (possibly
+        malformed) HTML"""
+
+    def __init__(self, tree=None, strict=False, namespaceHTMLElements=True, debug=False):
+        """
+        strict - raise an exception when a parse error is encountered
+
+        tree - a treebuilder class controlling the type of tree that will be
+        returned. Built in treebuilders can be accessed through
+        html5lib.treebuilders.getTreeBuilder(treeType)
+        """
+
+        # Raise an exception on the first error encountered
+        self.strict = strict
+
+        if tree is None:
+            tree = treebuilders.getTreeBuilder("etree")
+        self.tree = tree(namespaceHTMLElements)
+        self.errors = []
+
+        self.phases = dict([(name, cls(self, self.tree)) for name, cls in
+                            getPhases(debug).items()])
+
+    def _parse(self, stream, innerHTML=False, container="div", scripting=False, **kwargs):
+
+        self.innerHTMLMode = innerHTML
+        self.container = container
+        self.scripting = scripting
+        self.tokenizer = _tokenizer.HTMLTokenizer(stream, parser=self, **kwargs)
+        self.reset()
+
+        try:
+            self.mainLoop()
+        except ReparseException:
+            self.reset()
+            self.mainLoop()
+
+    def reset(self):
+        self.tree.reset()
+        self.firstStartTag = False
+        self.errors = []
+        self.log = []  # only used with debug mode
+        # "quirks" / "limited quirks" / "no quirks"
+        self.compatMode = "no quirks"
+
+        if self.innerHTMLMode:
+            self.innerHTML = self.container.lower()
+
+            if self.innerHTML in cdataElements:
+                self.tokenizer.state = self.tokenizer.rcdataState
+            elif self.innerHTML in rcdataElements:
+                self.tokenizer.state = self.tokenizer.rawtextState
+            elif self.innerHTML == 'plaintext':
+                self.tokenizer.state = self.tokenizer.plaintextState
+            else:
+                # state already is data state
+                # self.tokenizer.state = self.tokenizer.dataState
+                pass
+            self.phase = self.phases["beforeHtml"]
+            self.phase.insertHtmlElement()
+            self.resetInsertionMode()
+        else:
+            self.innerHTML = False  # pylint:disable=redefined-variable-type
+            self.phase = self.phases["initial"]
+
+        self.lastPhase = None
+
+        self.beforeRCDataPhase = None
+
+        self.framesetOK = True
+
+    @property
+    def documentEncoding(self):
+        """The name of the character encoding
+        that was used to decode the input stream,
+        or :obj:`None` if that is not determined yet.
+
+        """
+        if not hasattr(self, 'tokenizer'):
+            return None
+        return self.tokenizer.stream.charEncoding[0].name
+
+    def isHTMLIntegrationPoint(self, element):
+        if (element.name == "annotation-xml" and
+                element.namespace == namespaces["mathml"]):
+            return ("encoding" in element.attributes and
+                    element.attributes["encoding"].translate(
+                        asciiUpper2Lower) in
+                    ("text/html", "application/xhtml+xml"))
+        else:
+            return (element.namespace, element.name) in htmlIntegrationPointElements
+
+    def isMathMLTextIntegrationPoint(self, element):
+        return (element.namespace, element.name) in mathmlTextIntegrationPointElements
+
+    def mainLoop(self):
+        CharactersToken = tokenTypes["Characters"]
+        SpaceCharactersToken = tokenTypes["SpaceCharacters"]
+        StartTagToken = tokenTypes["StartTag"]
+        EndTagToken = tokenTypes["EndTag"]
+        CommentToken = tokenTypes["Comment"]
+        DoctypeToken = tokenTypes["Doctype"]
+        ParseErrorToken = tokenTypes["ParseError"]
+
+        for token in self.normalizedTokens():
+            prev_token = None
+            new_token = token
+            while new_token is not None:
+                prev_token = new_token
+                currentNode = self.tree.openElements[-1] if self.tree.openElements else None
+                currentNodeNamespace = currentNode.namespace if currentNode else None
+                currentNodeName = currentNode.name if currentNode else None
+
+                type = new_token["type"]
+
+                if type == ParseErrorToken:
+                    self.parseError(new_token["data"], new_token.get("datavars", {}))
+                    new_token = None
+                else:
+                    if (len(self.tree.openElements) == 0 or
+                        currentNodeNamespace == self.tree.defaultNamespace or
+                        (self.isMathMLTextIntegrationPoint(currentNode) and
+                         ((type == StartTagToken and
+                           token["name"] not in frozenset(["mglyph", "malignmark"])) or
+                          type in (CharactersToken, SpaceCharactersToken))) or
+                        (currentNodeNamespace == namespaces["mathml"] and
+                         currentNodeName == "annotation-xml" and
+                         type == StartTagToken and
+                         token["name"] == "svg") or
+                        (self.isHTMLIntegrationPoint(currentNode) and
+                         type in (StartTagToken, CharactersToken, SpaceCharactersToken))):
+                        phase = self.phase
+                    else:
+                        phase = self.phases["inForeignContent"]
+
+                    if type == CharactersToken:
+                        new_token = phase.processCharacters(new_token)
+                    elif type == SpaceCharactersToken:
+                        new_token = phase.processSpaceCharacters(new_token)
+                    elif type == StartTagToken:
+                        new_token = phase.processStartTag(new_token)
+                    elif type == EndTagToken:
+                        new_token = phase.processEndTag(new_token)
+                    elif type == CommentToken:
+                        new_token = phase.processComment(new_token)
+                    elif type == DoctypeToken:
+                        new_token = phase.processDoctype(new_token)
+
+            if (type == StartTagToken and prev_token["selfClosing"] and
+                    not prev_token["selfClosingAcknowledged"]):
+                self.parseError("non-void-element-with-trailing-solidus",
+                                {"name": prev_token["name"]})
+
+        # When the loop finishes it's EOF
+        reprocess = True
+        phases = []
+        while reprocess:
+            phases.append(self.phase)
+            reprocess = self.phase.processEOF()
+            if reprocess:
+                assert self.phase not in phases
+
+    def normalizedTokens(self):
+        for token in self.tokenizer:
+            yield self.normalizeToken(token)
+
+    def parse(self, stream, *args, **kwargs):
+        """Parse a HTML document into a well-formed tree
+
+        stream - a filelike object or string containing the HTML to be parsed
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        scripting - treat noscript elements as if javascript was turned on
+        """
+        self._parse(stream, False, None, *args, **kwargs)
+        return self.tree.getDocument()
+
+    def parseFragment(self, stream, *args, **kwargs):
+        """Parse a HTML fragment into a well-formed tree fragment
+
+        container - name of the element we're setting the innerHTML property
+        if set to None, default to 'div'
+
+        stream - a filelike object or string containing the HTML to be parsed
+
+        The optional encoding parameter must be a string that indicates
+        the encoding.  If specified, that encoding will be used,
+        regardless of any BOM or later declaration (such as in a meta
+        element)
+
+        scripting - treat noscript elements as if javascript was turned on
+        """
+        self._parse(stream, True, *args, **kwargs)
+        return self.tree.getFragment()
+
+    def parseError(self, errorcode="XXX-undefined-error", datavars=None):
+        # XXX The idea is to make errorcode mandatory.
+        if datavars is None:
+            datavars = {}
+        self.errors.append((self.tokenizer.stream.position(), errorcode, datavars))
+        if self.strict:
+            raise ParseError(E[errorcode] % datavars)
+
+    def normalizeToken(self, token):
+        """ HTML5 specific normalizations to the token stream """
+
+        if token["type"] == tokenTypes["StartTag"]:
+            raw = token["data"]
+            token["data"] = OrderedDict(raw)
+            if len(raw) > len(token["data"]):
+                # we had some duplicated attribute, fix so first wins
+                token["data"].update(raw[::-1])
+
+        return token
+
+    def adjustMathMLAttributes(self, token):
+        adjust_attributes(token, adjustMathMLAttributes)
+
+    def adjustSVGAttributes(self, token):
+        adjust_attributes(token, adjustSVGAttributes)
+
+    def adjustForeignAttributes(self, token):
+        adjust_attributes(token, adjustForeignAttributesMap)
+
+    def reparseTokenNormal(self, token):
+        # pylint:disable=unused-argument
+        self.parser.phase()
+
+    def resetInsertionMode(self):
+        # The name of this method is mostly historical. (It's also used in the
+        # specification.)
+        last = False
+        newModes = {
+            "select": "inSelect",
+            "td": "inCell",
+            "th": "inCell",
+            "tr": "inRow",
+            "tbody": "inTableBody",
+            "thead": "inTableBody",
+            "tfoot": "inTableBody",
+            "caption": "inCaption",
+            "colgroup": "inColumnGroup",
+            "table": "inTable",
+            "head": "inBody",
+            "body": "inBody",
+            "frameset": "inFrameset",
+            "html": "beforeHead"
+        }
+        for node in self.tree.openElements[::-1]:
+            nodeName = node.name
+            new_phase = None
+            if node == self.tree.openElements[0]:
+                assert self.innerHTML
+                last = True
+                nodeName = self.innerHTML
+            # Check for conditions that should only happen in the innerHTML
+            # case
+            if nodeName in ("select", "colgroup", "head", "html"):
+                assert self.innerHTML
+
+            if not last and node.namespace != self.tree.defaultNamespace:
+                continue
+
+            if nodeName in newModes:
+                new_phase = self.phases[newModes[nodeName]]
+                break
+            elif last:
+                new_phase = self.phases["inBody"]
+                break
+
+        self.phase = new_phase
+
+    def parseRCDataRawtext(self, token, contentType):
+        """Generic RCDATA/RAWTEXT Parsing algorithm
+        contentType - RCDATA or RAWTEXT
+        """
+        assert contentType in ("RAWTEXT", "RCDATA")
+
+        self.tree.insertElement(token)
+
+        if contentType == "RAWTEXT":
+            self.tokenizer.state = self.tokenizer.rawtextState
+        else:
+            self.tokenizer.state = self.tokenizer.rcdataState
+
+        self.originalPhase = self.phase
+
+        self.phase = self.phases["text"]
+
+
+@_utils.memoize
+def getPhases(debug):
+    def log(function):
+        """Logger that records which phase processes each token"""
+        type_names = dict((value, key) for key, value in
+                          tokenTypes.items())
+
+        def wrapped(self, *args, **kwargs):
+            if function.__name__.startswith("process") and len(args) > 0:
+                token = args[0]
+                try:
+                    info = {"type": type_names[token['type']]}
+                except:
+                    raise
+                if token['type'] in tagTokenTypes:
+                    info["name"] = token['name']
+
+                self.parser.log.append((self.parser.tokenizer.state.__name__,
+                                        self.parser.phase.__class__.__name__,
+                                        self.__class__.__name__,
+                                        function.__name__,
+                                        info))
+                return function(self, *args, **kwargs)
+            else:
+                return function(self, *args, **kwargs)
+        return wrapped
+
+    def getMetaclass(use_metaclass, metaclass_func):
+        if use_metaclass:
+            return method_decorator_metaclass(metaclass_func)
+        else:
+            return type
+
+    # pylint:disable=unused-argument
+    class Phase(with_metaclass(getMetaclass(debug, log))):
+        """Base class for helper object that implements each phase of processing
+        """
+
+        def __init__(self, parser, tree):
+            self.parser = parser
+            self.tree = tree
+
+        def processEOF(self):
+            raise NotImplementedError
+
+        def processComment(self, token):
+            # For most phases the following is correct. Where it's not it will be
+            # overridden.
+            self.tree.insertComment(token, self.tree.openElements[-1])
+
+        def processDoctype(self, token):
+            self.parser.parseError("unexpected-doctype")
+
+        def processCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processSpaceCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processStartTag(self, token):
+            return self.startTagHandler[token["name"]](token)
+
+        def startTagHtml(self, token):
+            if not self.parser.firstStartTag and token["name"] == "html":
+                self.parser.parseError("non-html-root")
+            # XXX Need a check here to see if the first start tag token emitted is
+            # this token... If it's not, invoke self.parser.parseError().
+            for attr, value in token["data"].items():
+                if attr not in self.tree.openElements[0].attributes:
+                    self.tree.openElements[0].attributes[attr] = value
+            self.parser.firstStartTag = False
+
+        def processEndTag(self, token):
+            return self.endTagHandler[token["name"]](token)
+
+    class InitialPhase(Phase):
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processDoctype(self, token):
+            name = token["name"]
+            publicId = token["publicId"]
+            systemId = token["systemId"]
+            correct = token["correct"]
+
+            if (name != "html" or publicId is not None or
+                    systemId is not None and systemId != "about:legacy-compat"):
+                self.parser.parseError("unknown-doctype")
+
+            if publicId is None:
+                publicId = ""
+
+            self.tree.insertDoctype(token)
+
+            if publicId != "":
+                publicId = publicId.translate(asciiUpper2Lower)
+
+            if (not correct or token["name"] != "html" or
+                    publicId.startswith(
+                        ("+//silmaril//dtd html pro v0r11 19970101//",
+                         "-//advasoft ltd//dtd html 3.0 aswedit + extensions//",
+                         "-//as//dtd html 3.0 aswedit + extensions//",
+                         "-//ietf//dtd html 2.0 level 1//",
+                         "-//ietf//dtd html 2.0 level 2//",
+                         "-//ietf//dtd html 2.0 strict level 1//",
+                         "-//ietf//dtd html 2.0 strict level 2//",
+                         "-//ietf//dtd html 2.0 strict//",
+                         "-//ietf//dtd html 2.0//",
+                         "-//ietf//dtd html 2.1e//",
+                         "-//ietf//dtd html 3.0//",
+                         "-//ietf//dtd html 3.2 final//",
+                         "-//ietf//dtd html 3.2//",
+                         "-//ietf//dtd html 3//",
+                         "-//ietf//dtd html level 0//",
+                         "-//ietf//dtd html level 1//",
+                         "-//ietf//dtd html level 2//",
+                         "-//ietf//dtd html level 3//",
+                         "-//ietf//dtd html strict level 0//",
+                         "-//ietf//dtd html strict level 1//",
+                         "-//ietf//dtd html strict level 2//",
+                         "-//ietf//dtd html strict level 3//",
+                         "-//ietf//dtd html strict//",
+                         "-//ietf//dtd html//",
+                         "-//metrius//dtd metrius presentational//",
+                         "-//microsoft//dtd internet explorer 2.0 html strict//",
+                         "-//microsoft//dtd internet explorer 2.0 html//",
+                         "-//microsoft//dtd internet explorer 2.0 tables//",
+                         "-//microsoft//dtd internet explorer 3.0 html strict//",
+                         "-//microsoft//dtd internet explorer 3.0 html//",
+                         "-//microsoft//dtd internet explorer 3.0 tables//",
+                         "-//netscape comm. corp.//dtd html//",
+                         "-//netscape comm. corp.//dtd strict html//",
+                         "-//o'reilly and associates//dtd html 2.0//",
+                         "-//o'reilly and associates//dtd html extended 1.0//",
+                         "-//o'reilly and associates//dtd html extended relaxed 1.0//",
+                         "-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//",
+                         "-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//",
+                         "-//spyglass//dtd html 2.0 extended//",
+                         "-//sq//dtd html 2.0 hotmetal + extensions//",
+                         "-//sun microsystems corp.//dtd hotjava html//",
+                         "-//sun microsystems corp.//dtd hotjava strict html//",
+                         "-//w3c//dtd html 3 1995-03-24//",
+                         "-//w3c//dtd html 3.2 draft//",
+                         "-//w3c//dtd html 3.2 final//",
+                         "-//w3c//dtd html 3.2//",
+                         "-//w3c//dtd html 3.2s draft//",
+                         "-//w3c//dtd html 4.0 frameset//",
+                         "-//w3c//dtd html 4.0 transitional//",
+                         "-//w3c//dtd html experimental 19960712//",
+                         "-//w3c//dtd html experimental 970421//",
+                         "-//w3c//dtd w3 html//",
+                         "-//w3o//dtd w3 html 3.0//",
+                         "-//webtechs//dtd mozilla html 2.0//",
+                         "-//webtechs//dtd mozilla html//")) or
+                    publicId in ("-//w3o//dtd w3 html strict 3.0//en//",
+                                 "-/w3c/dtd html 4.0 transitional/en",
+                                 "html") or
+                    publicId.startswith(
+                        ("-//w3c//dtd html 4.01 frameset//",
+                         "-//w3c//dtd html 4.01 transitional//")) and
+                    systemId is None or
+                    systemId and systemId.lower() == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"):
+                self.parser.compatMode = "quirks"
+            elif (publicId.startswith(
+                    ("-//w3c//dtd xhtml 1.0 frameset//",
+                     "-//w3c//dtd xhtml 1.0 transitional//")) or
+                  publicId.startswith(
+                      ("-//w3c//dtd html 4.01 frameset//",
+                       "-//w3c//dtd html 4.01 transitional//")) and
+                  systemId is not None):
+                self.parser.compatMode = "limited quirks"
+
+            self.parser.phase = self.parser.phases["beforeHtml"]
+
+        def anythingElse(self):
+            self.parser.compatMode = "quirks"
+            self.parser.phase = self.parser.phases["beforeHtml"]
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-doctype-but-got-chars")
+            self.anythingElse()
+            return token
+
+        def processStartTag(self, token):
+            self.parser.parseError("expected-doctype-but-got-start-tag",
+                                   {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-doctype-but-got-end-tag",
+                                   {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def processEOF(self):
+            self.parser.parseError("expected-doctype-but-got-eof")
+            self.anythingElse()
+            return True
+
+    class BeforeHtmlPhase(Phase):
+        # helper methods
+        def insertHtmlElement(self):
+            self.tree.insertRoot(impliedTagToken("html", "StartTag"))
+            self.parser.phase = self.parser.phases["beforeHead"]
+
+        # other
+        def processEOF(self):
+            self.insertHtmlElement()
+            return True
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processCharacters(self, token):
+            self.insertHtmlElement()
+            return token
+
+        def processStartTag(self, token):
+            if token["name"] == "html":
+                self.parser.firstStartTag = True
+            self.insertHtmlElement()
+            return token
+
+        def processEndTag(self, token):
+            if token["name"] not in ("head", "body", "html", "br"):
+                self.parser.parseError("unexpected-end-tag-before-html",
+                                       {"name": token["name"]})
+            else:
+                self.insertHtmlElement()
+                return token
+
+    class BeforeHeadPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("head", self.startTagHead)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("head", "body", "html", "br"), self.endTagImplyHead)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return True
+
+        def processSpaceCharacters(self, token):
+            pass
+
+        def processCharacters(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagHead(self, token):
+            self.tree.insertElement(token)
+            self.tree.headPointer = self.tree.openElements[-1]
+            self.parser.phase = self.parser.phases["inHead"]
+
+        def startTagOther(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def endTagImplyHead(self, token):
+            self.startTagHead(impliedTagToken("head", "StartTag"))
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("end-tag-after-implied-root",
+                                   {"name": token["name"]})
+
+    class InHeadPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("title", self.startTagTitle),
+                (("noframes", "style"), self.startTagNoFramesStyle),
+                ("noscript", self.startTagNoscript),
+                ("script", self.startTagScript),
+                (("base", "basefont", "bgsound", "command", "link"),
+                 self.startTagBaseLinkCommand),
+                ("meta", self.startTagMeta),
+                ("head", self.startTagHead)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("head", self.endTagHead),
+                (("br", "html", "body"), self.endTagHtmlBodyBr)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # the real thing
+        def processEOF(self):
+            self.anythingElse()
+            return True
+
+        def processCharacters(self, token):
+            self.anythingElse()
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagHead(self, token):
+            self.parser.parseError("two-heads-are-not-better-than-one")
+
+        def startTagBaseLinkCommand(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagMeta(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+            attributes = token["data"]
+            if self.parser.tokenizer.stream.charEncoding[1] == "tentative":
+                if "charset" in attributes:
+                    self.parser.tokenizer.stream.changeEncoding(attributes["charset"])
+                elif ("content" in attributes and
+                      "http-equiv" in attributes and
+                      attributes["http-equiv"].lower() == "content-type"):
+                    # Encoding it as UTF-8 here is a hack, as really we should pass
+                    # the abstract Unicode string, and just use the
+                    # ContentAttrParser on that, but using UTF-8 allows all chars
+                    # to be encoded and as a ASCII-superset works.
+                    data = _inputstream.EncodingBytes(attributes["content"].encode("utf-8"))
+                    parser = _inputstream.ContentAttrParser(data)
+                    codec = parser.parse()
+                    self.parser.tokenizer.stream.changeEncoding(codec)
+
+        def startTagTitle(self, token):
+            self.parser.parseRCDataRawtext(token, "RCDATA")
+
+        def startTagNoFramesStyle(self, token):
+            # Need to decide whether to implement the scripting-disabled case
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagNoscript(self, token):
+            if self.parser.scripting:
+                self.parser.parseRCDataRawtext(token, "RAWTEXT")
+            else:
+                self.tree.insertElement(token)
+                self.parser.phase = self.parser.phases["inHeadNoscript"]
+
+        def startTagScript(self, token):
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.scriptDataState
+            self.parser.originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["text"]
+
+        def startTagOther(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagHead(self, token):
+            node = self.parser.tree.openElements.pop()
+            assert node.name == "head", "Expected head got %s" % node.name
+            self.parser.phase = self.parser.phases["afterHead"]
+
+        def endTagHtmlBodyBr(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            self.endTagHead(impliedTagToken("head"))
+
+    class InHeadNoscriptPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("basefont", "bgsound", "link", "meta", "noframes", "style"), self.startTagBaseLinkCommand),
+                (("head", "noscript"), self.startTagHeadNoscript),
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("noscript", self.endTagNoscript),
+                ("br", self.endTagBr),
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            self.parser.parseError("eof-in-head-noscript")
+            self.anythingElse()
+            return True
+
+        def processComment(self, token):
+            return self.parser.phases["inHead"].processComment(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("char-in-head-noscript")
+            self.anythingElse()
+            return token
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inHead"].processSpaceCharacters(token)
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagBaseLinkCommand(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagHeadNoscript(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def endTagNoscript(self, token):
+            node = self.parser.tree.openElements.pop()
+            assert node.name == "noscript", "Expected noscript got %s" % node.name
+            self.parser.phase = self.parser.phases["inHead"]
+
+        def endTagBr(self, token):
+            self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]})
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            # Caller must raise parse error first!
+            self.endTagNoscript(impliedTagToken("noscript"))
+
+    class AfterHeadPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("body", self.startTagBody),
+                ("frameset", self.startTagFrameset),
+                (("base", "basefont", "bgsound", "link", "meta", "noframes", "script",
+                  "style", "title"),
+                 self.startTagFromHead),
+                ("head", self.startTagHead)
+            ])
+            self.startTagHandler.default = self.startTagOther
+            self.endTagHandler = _utils.MethodDispatcher([(("body", "html", "br"),
+                                                           self.endTagHtmlBodyBr)])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            self.anythingElse()
+            return True
+
+        def processCharacters(self, token):
+            self.anythingElse()
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagBody(self, token):
+            self.parser.framesetOK = False
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inBody"]
+
+        def startTagFrameset(self, token):
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inFrameset"]
+
+        def startTagFromHead(self, token):
+            self.parser.parseError("unexpected-start-tag-out-of-my-head",
+                                   {"name": token["name"]})
+            self.tree.openElements.append(self.tree.headPointer)
+            self.parser.phases["inHead"].processStartTag(token)
+            for node in self.tree.openElements[::-1]:
+                if node.name == "head":
+                    self.tree.openElements.remove(node)
+                    break
+
+        def startTagHead(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagHtmlBodyBr(self, token):
+            self.anythingElse()
+            return token
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def anythingElse(self):
+            self.tree.insertElement(impliedTagToken("body", "StartTag"))
+            self.parser.phase = self.parser.phases["inBody"]
+            self.parser.framesetOK = True
+
+    class InBodyPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#parsing-main-inbody
+        # the really-really-really-very crazy mode
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            # Set this to the default handler
+            self.processSpaceCharacters = self.processSpaceCharactersNonPre
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("base", "basefont", "bgsound", "command", "link", "meta",
+                  "script", "style", "title"),
+                 self.startTagProcessInHead),
+                ("body", self.startTagBody),
+                ("frameset", self.startTagFrameset),
+                (("address", "article", "aside", "blockquote", "center", "details",
+                  "dir", "div", "dl", "fieldset", "figcaption", "figure",
+                  "footer", "header", "hgroup", "main", "menu", "nav", "ol", "p",
+                  "section", "summary", "ul"),
+                 self.startTagCloseP),
+                (headingElements, self.startTagHeading),
+                (("pre", "listing"), self.startTagPreListing),
+                ("form", self.startTagForm),
+                (("li", "dd", "dt"), self.startTagListItem),
+                ("plaintext", self.startTagPlaintext),
+                ("a", self.startTagA),
+                (("b", "big", "code", "em", "font", "i", "s", "small", "strike",
+                  "strong", "tt", "u"), self.startTagFormatting),
+                ("nobr", self.startTagNobr),
+                ("button", self.startTagButton),
+                (("applet", "marquee", "object"), self.startTagAppletMarqueeObject),
+                ("xmp", self.startTagXmp),
+                ("table", self.startTagTable),
+                (("area", "br", "embed", "img", "keygen", "wbr"),
+                 self.startTagVoidFormatting),
+                (("param", "source", "track"), self.startTagParamSource),
+                ("input", self.startTagInput),
+                ("hr", self.startTagHr),
+                ("image", self.startTagImage),
+                ("isindex", self.startTagIsIndex),
+                ("textarea", self.startTagTextarea),
+                ("iframe", self.startTagIFrame),
+                ("noscript", self.startTagNoscript),
+                (("noembed", "noframes"), self.startTagRawtext),
+                ("select", self.startTagSelect),
+                (("rp", "rt"), self.startTagRpRt),
+                (("option", "optgroup"), self.startTagOpt),
+                (("math"), self.startTagMath),
+                (("svg"), self.startTagSvg),
+                (("caption", "col", "colgroup", "frame", "head",
+                  "tbody", "td", "tfoot", "th", "thead",
+                  "tr"), self.startTagMisplaced)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("body", self.endTagBody),
+                ("html", self.endTagHtml),
+                (("address", "article", "aside", "blockquote", "button", "center",
+                  "details", "dialog", "dir", "div", "dl", "fieldset", "figcaption", "figure",
+                  "footer", "header", "hgroup", "listing", "main", "menu", "nav", "ol", "pre",
+                  "section", "summary", "ul"), self.endTagBlock),
+                ("form", self.endTagForm),
+                ("p", self.endTagP),
+                (("dd", "dt", "li"), self.endTagListItem),
+                (headingElements, self.endTagHeading),
+                (("a", "b", "big", "code", "em", "font", "i", "nobr", "s", "small",
+                  "strike", "strong", "tt", "u"), self.endTagFormatting),
+                (("applet", "marquee", "object"), self.endTagAppletMarqueeObject),
+                ("br", self.endTagBr),
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def isMatchingFormattingElement(self, node1, node2):
+            return (node1.name == node2.name and
+                    node1.namespace == node2.namespace and
+                    node1.attributes == node2.attributes)
+
+        # helper
+        def addFormattingElement(self, token):
+            self.tree.insertElement(token)
+            element = self.tree.openElements[-1]
+
+            matchingElements = []
+            for node in self.tree.activeFormattingElements[::-1]:
+                if node is Marker:
+                    break
+                elif self.isMatchingFormattingElement(node, element):
+                    matchingElements.append(node)
+
+            assert len(matchingElements) <= 3
+            if len(matchingElements) == 3:
+                self.tree.activeFormattingElements.remove(matchingElements[-1])
+            self.tree.activeFormattingElements.append(element)
+
+        # the real deal
+        def processEOF(self):
+            allowed_elements = frozenset(("dd", "dt", "li", "p", "tbody", "td",
+                                          "tfoot", "th", "thead", "tr", "body",
+                                          "html"))
+            for node in self.tree.openElements[::-1]:
+                if node.name not in allowed_elements:
+                    self.parser.parseError("expected-closing-tag-but-got-eof")
+                    break
+            # Stop parsing
+
+        def processSpaceCharactersDropNewline(self, token):
+            # Sometimes (start of <pre>, <listing>, and <textarea> blocks) we
+            # want to drop leading newlines
+            data = token["data"]
+            self.processSpaceCharacters = self.processSpaceCharactersNonPre
+            if (data.startswith("\n") and
+                self.tree.openElements[-1].name in ("pre", "listing", "textarea") and
+                    not self.tree.openElements[-1].hasContent()):
+                data = data[1:]
+            if data:
+                self.tree.reconstructActiveFormattingElements()
+                self.tree.insertText(data)
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                # The tokenizer should always emit null on its own
+                return
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertText(token["data"])
+            # This must be bad for performance
+            if (self.parser.framesetOK and
+                any([char not in spaceCharacters
+                     for char in token["data"]])):
+                self.parser.framesetOK = False
+
+        def processSpaceCharactersNonPre(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertText(token["data"])
+
+        def startTagProcessInHead(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagBody(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": "body"})
+            if (len(self.tree.openElements) == 1 or
+                    self.tree.openElements[1].name != "body"):
+                assert self.parser.innerHTML
+            else:
+                self.parser.framesetOK = False
+                for attr, value in token["data"].items():
+                    if attr not in self.tree.openElements[1].attributes:
+                        self.tree.openElements[1].attributes[attr] = value
+
+        def startTagFrameset(self, token):
+            self.parser.parseError("unexpected-start-tag", {"name": "frameset"})
+            if (len(self.tree.openElements) == 1 or self.tree.openElements[1].name != "body"):
+                assert self.parser.innerHTML
+            elif not self.parser.framesetOK:
+                pass
+            else:
+                if self.tree.openElements[1].parent:
+                    self.tree.openElements[1].parent.removeChild(self.tree.openElements[1])
+                while self.tree.openElements[-1].name != "html":
+                    self.tree.openElements.pop()
+                self.tree.insertElement(token)
+                self.parser.phase = self.parser.phases["inFrameset"]
+
+        def startTagCloseP(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+
+        def startTagPreListing(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            self.processSpaceCharacters = self.processSpaceCharactersDropNewline
+
+        def startTagForm(self, token):
+            if self.tree.formPointer:
+                self.parser.parseError("unexpected-start-tag", {"name": "form"})
+            else:
+                if self.tree.elementInScope("p", variant="button"):
+                    self.endTagP(impliedTagToken("p"))
+                self.tree.insertElement(token)
+                self.tree.formPointer = self.tree.openElements[-1]
+
+        def startTagListItem(self, token):
+            self.parser.framesetOK = False
+
+            stopNamesMap = {"li": ["li"],
+                            "dt": ["dt", "dd"],
+                            "dd": ["dt", "dd"]}
+            stopNames = stopNamesMap[token["name"]]
+            for node in reversed(self.tree.openElements):
+                if node.name in stopNames:
+                    self.parser.phase.processEndTag(
+                        impliedTagToken(node.name, "EndTag"))
+                    break
+                if (node.nameTuple in specialElements and
+                        node.name not in ("address", "div", "p")):
+                    break
+
+            if self.tree.elementInScope("p", variant="button"):
+                self.parser.phase.processEndTag(
+                    impliedTagToken("p", "EndTag"))
+
+            self.tree.insertElement(token)
+
+        def startTagPlaintext(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.plaintextState
+
+        def startTagHeading(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            if self.tree.openElements[-1].name in headingElements:
+                self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagA(self, token):
+            afeAElement = self.tree.elementInActiveFormattingElements("a")
+            if afeAElement:
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "a", "endName": "a"})
+                self.endTagFormatting(impliedTagToken("a"))
+                if afeAElement in self.tree.openElements:
+                    self.tree.openElements.remove(afeAElement)
+                if afeAElement in self.tree.activeFormattingElements:
+                    self.tree.activeFormattingElements.remove(afeAElement)
+            self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagFormatting(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagNobr(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            if self.tree.elementInScope("nobr"):
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "nobr", "endName": "nobr"})
+                self.processEndTag(impliedTagToken("nobr"))
+                # XXX Need tests that trigger the following
+                self.tree.reconstructActiveFormattingElements()
+            self.addFormattingElement(token)
+
+        def startTagButton(self, token):
+            if self.tree.elementInScope("button"):
+                self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                       {"startName": "button", "endName": "button"})
+                self.processEndTag(impliedTagToken("button"))
+                return token
+            else:
+                self.tree.reconstructActiveFormattingElements()
+                self.tree.insertElement(token)
+                self.parser.framesetOK = False
+
+        def startTagAppletMarqueeObject(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.tree.activeFormattingElements.append(Marker)
+            self.parser.framesetOK = False
+
+        def startTagXmp(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.framesetOK = False
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagTable(self, token):
+            if self.parser.compatMode != "quirks":
+                if self.tree.elementInScope("p", variant="button"):
+                    self.processEndTag(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            self.parser.phase = self.parser.phases["inTable"]
+
+        def startTagVoidFormatting(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+            self.parser.framesetOK = False
+
+        def startTagInput(self, token):
+            framesetOK = self.parser.framesetOK
+            self.startTagVoidFormatting(token)
+            if ("type" in token["data"] and
+                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
+                # input type=hidden doesn't change framesetOK
+                self.parser.framesetOK = framesetOK
+
+        def startTagParamSource(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagHr(self, token):
+            if self.tree.elementInScope("p", variant="button"):
+                self.endTagP(impliedTagToken("p"))
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+            self.parser.framesetOK = False
+
+        def startTagImage(self, token):
+            # No really...
+            self.parser.parseError("unexpected-start-tag-treated-as",
+                                   {"originalName": "image", "newName": "img"})
+            self.processStartTag(impliedTagToken("img", "StartTag",
+                                                 attributes=token["data"],
+                                                 selfClosing=token["selfClosing"]))
+
+        def startTagIsIndex(self, token):
+            self.parser.parseError("deprecated-tag", {"name": "isindex"})
+            if self.tree.formPointer:
+                return
+            form_attrs = {}
+            if "action" in token["data"]:
+                form_attrs["action"] = token["data"]["action"]
+            self.processStartTag(impliedTagToken("form", "StartTag",
+                                                 attributes=form_attrs))
+            self.processStartTag(impliedTagToken("hr", "StartTag"))
+            self.processStartTag(impliedTagToken("label", "StartTag"))
+            # XXX Localization ...
+            if "prompt" in token["data"]:
+                prompt = token["data"]["prompt"]
+            else:
+                prompt = "This is a searchable index. Enter search keywords: "
+            self.processCharacters(
+                {"type": tokenTypes["Characters"], "data": prompt})
+            attributes = token["data"].copy()
+            if "action" in attributes:
+                del attributes["action"]
+            if "prompt" in attributes:
+                del attributes["prompt"]
+            attributes["name"] = "isindex"
+            self.processStartTag(impliedTagToken("input", "StartTag",
+                                                 attributes=attributes,
+                                                 selfClosing=token["selfClosing"]))
+            self.processEndTag(impliedTagToken("label"))
+            self.processStartTag(impliedTagToken("hr", "StartTag"))
+            self.processEndTag(impliedTagToken("form"))
+
+        def startTagTextarea(self, token):
+            self.tree.insertElement(token)
+            self.parser.tokenizer.state = self.parser.tokenizer.rcdataState
+            self.processSpaceCharacters = self.processSpaceCharactersDropNewline
+            self.parser.framesetOK = False
+
+        def startTagIFrame(self, token):
+            self.parser.framesetOK = False
+            self.startTagRawtext(token)
+
+        def startTagNoscript(self, token):
+            if self.parser.scripting:
+                self.startTagRawtext(token)
+            else:
+                self.startTagOther(token)
+
+        def startTagRawtext(self, token):
+            """iframe, noembed noframes, noscript(if scripting enabled)"""
+            self.parser.parseRCDataRawtext(token, "RAWTEXT")
+
+        def startTagOpt(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.parser.phase.processEndTag(impliedTagToken("option"))
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.tree.insertElement(token)
+
+        def startTagSelect(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+            self.parser.framesetOK = False
+            if self.parser.phase in (self.parser.phases["inTable"],
+                                     self.parser.phases["inCaption"],
+                                     self.parser.phases["inColumnGroup"],
+                                     self.parser.phases["inTableBody"],
+                                     self.parser.phases["inRow"],
+                                     self.parser.phases["inCell"]):
+                self.parser.phase = self.parser.phases["inSelectInTable"]
+            else:
+                self.parser.phase = self.parser.phases["inSelect"]
+
+        def startTagRpRt(self, token):
+            if self.tree.elementInScope("ruby"):
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "ruby":
+                    self.parser.parseError()
+            self.tree.insertElement(token)
+
+        def startTagMath(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.adjustMathMLAttributes(token)
+            self.parser.adjustForeignAttributes(token)
+            token["namespace"] = namespaces["mathml"]
+            self.tree.insertElement(token)
+            # Need to get the parse error right for the case where the token
+            # has a namespace not equal to the xmlns attribute
+            if token["selfClosing"]:
+                self.tree.openElements.pop()
+                token["selfClosingAcknowledged"] = True
+
+        def startTagSvg(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.parser.adjustSVGAttributes(token)
+            self.parser.adjustForeignAttributes(token)
+            token["namespace"] = namespaces["svg"]
+            self.tree.insertElement(token)
+            # Need to get the parse error right for the case where the token
+            # has a namespace not equal to the xmlns attribute
+            if token["selfClosing"]:
+                self.tree.openElements.pop()
+                token["selfClosingAcknowledged"] = True
+
+        def startTagMisplaced(self, token):
+            """ Elements that should be children of other elements that have a
+            different insertion mode; here they are ignored
+            "caption", "col", "colgroup", "frame", "frameset", "head",
+            "option", "optgroup", "tbody", "td", "tfoot", "th", "thead",
+            "tr", "noscript"
+            """
+            self.parser.parseError("unexpected-start-tag-ignored", {"name": token["name"]})
+
+        def startTagOther(self, token):
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(token)
+
+        def endTagP(self, token):
+            if not self.tree.elementInScope("p", variant="button"):
+                self.startTagCloseP(impliedTagToken("p", "StartTag"))
+                self.parser.parseError("unexpected-end-tag", {"name": "p"})
+                self.endTagP(impliedTagToken("p", "EndTag"))
+            else:
+                self.tree.generateImpliedEndTags("p")
+                if self.tree.openElements[-1].name != "p":
+                    self.parser.parseError("unexpected-end-tag", {"name": "p"})
+                node = self.tree.openElements.pop()
+                while node.name != "p":
+                    node = self.tree.openElements.pop()
+
+        def endTagBody(self, token):
+            if not self.tree.elementInScope("body"):
+                self.parser.parseError()
+                return
+            elif self.tree.openElements[-1].name != "body":
+                for node in self.tree.openElements[2:]:
+                    if node.name not in frozenset(("dd", "dt", "li", "optgroup",
+                                                   "option", "p", "rp", "rt",
+                                                   "tbody", "td", "tfoot",
+                                                   "th", "thead", "tr", "body",
+                                                   "html")):
+                        # Not sure this is the correct name for the parse error
+                        self.parser.parseError(
+                            "expected-one-end-tag-but-got-another",
+                            {"gotName": "body", "expectedName": node.name})
+                        break
+            self.parser.phase = self.parser.phases["afterBody"]
+
+        def endTagHtml(self, token):
+            # We repeat the test for the body end tag token being ignored here
+            if self.tree.elementInScope("body"):
+                self.endTagBody(impliedTagToken("body"))
+                return token
+
+        def endTagBlock(self, token):
+            # Put us back in the right whitespace handling mode
+            if token["name"] == "pre":
+                self.processSpaceCharacters = self.processSpaceCharactersNonPre
+            inScope = self.tree.elementInScope(token["name"])
+            if inScope:
+                self.tree.generateImpliedEndTags()
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+            if inScope:
+                node = self.tree.openElements.pop()
+                while node.name != token["name"]:
+                    node = self.tree.openElements.pop()
+
+        def endTagForm(self, token):
+            node = self.tree.formPointer
+            self.tree.formPointer = None
+            if node is None or not self.tree.elementInScope(node):
+                self.parser.parseError("unexpected-end-tag",
+                                       {"name": "form"})
+            else:
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1] != node:
+                    self.parser.parseError("end-tag-too-early-ignored",
+                                           {"name": "form"})
+                self.tree.openElements.remove(node)
+
+        def endTagListItem(self, token):
+            if token["name"] == "li":
+                variant = "list"
+            else:
+                variant = None
+            if not self.tree.elementInScope(token["name"], variant=variant):
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+            else:
+                self.tree.generateImpliedEndTags(exclude=token["name"])
+                if self.tree.openElements[-1].name != token["name"]:
+                    self.parser.parseError(
+                        "end-tag-too-early",
+                        {"name": token["name"]})
+                node = self.tree.openElements.pop()
+                while node.name != token["name"]:
+                    node = self.tree.openElements.pop()
+
+        def endTagHeading(self, token):
+            for item in headingElements:
+                if self.tree.elementInScope(item):
+                    self.tree.generateImpliedEndTags()
+                    break
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+
+            for item in headingElements:
+                if self.tree.elementInScope(item):
+                    item = self.tree.openElements.pop()
+                    while item.name not in headingElements:
+                        item = self.tree.openElements.pop()
+                    break
+
+        def endTagFormatting(self, token):
+            """The much-feared adoption agency algorithm"""
+            # http://svn.whatwg.org/webapps/complete.html#adoptionAgency revision 7867
+            # XXX Better parseError messages appreciated.
+
+            # Step 1
+            outerLoopCounter = 0
+
+            # Step 2
+            while outerLoopCounter < 8:
+
+                # Step 3
+                outerLoopCounter += 1
+
+                # Step 4:
+
+                # Let the formatting element be the last element in
+                # the list of active formatting elements that:
+                # - is between the end of the list and the last scope
+                # marker in the list, if any, or the start of the list
+                # otherwise, and
+                # - has the same tag name as the token.
+                formattingElement = self.tree.elementInActiveFormattingElements(
+                    token["name"])
+                if (not formattingElement or
+                    (formattingElement in self.tree.openElements and
+                     not self.tree.elementInScope(formattingElement.name))):
+                    # If there is no such node, then abort these steps
+                    # and instead act as described in the "any other
+                    # end tag" entry below.
+                    self.endTagOther(token)
+                    return
+
+                # Otherwise, if there is such a node, but that node is
+                # not in the stack of open elements, then this is a
+                # parse error; remove the element from the list, and
+                # abort these steps.
+                elif formattingElement not in self.tree.openElements:
+                    self.parser.parseError("adoption-agency-1.2", {"name": token["name"]})
+                    self.tree.activeFormattingElements.remove(formattingElement)
+                    return
+
+                # Otherwise, if there is such a node, and that node is
+                # also in the stack of open elements, but the element
+                # is not in scope, then this is a parse error; ignore
+                # the token, and abort these steps.
+                elif not self.tree.elementInScope(formattingElement.name):
+                    self.parser.parseError("adoption-agency-4.4", {"name": token["name"]})
+                    return
+
+                # Otherwise, there is a formatting element and that
+                # element is in the stack and is in scope. If the
+                # element is not the current node, this is a parse
+                # error. In any case, proceed with the algorithm as
+                # written in the following steps.
+                else:
+                    if formattingElement != self.tree.openElements[-1]:
+                        self.parser.parseError("adoption-agency-1.3", {"name": token["name"]})
+
+                # Step 5:
+
+                # Let the furthest block be the topmost node in the
+                # stack of open elements that is lower in the stack
+                # than the formatting element, and is an element in
+                # the special category. There might not be one.
+                afeIndex = self.tree.openElements.index(formattingElement)
+                furthestBlock = None
+                for element in self.tree.openElements[afeIndex:]:
+                    if element.nameTuple in specialElements:
+                        furthestBlock = element
+                        break
+
+                # Step 6:
+
+                # If there is no furthest block, then the UA must
+                # first pop all the nodes from the bottom of the stack
+                # of open elements, from the current node up to and
+                # including the formatting element, then remove the
+                # formatting element from the list of active
+                # formatting elements, and finally abort these steps.
+                if furthestBlock is None:
+                    element = self.tree.openElements.pop()
+                    while element != formattingElement:
+                        element = self.tree.openElements.pop()
+                    self.tree.activeFormattingElements.remove(element)
+                    return
+
+                # Step 7
+                commonAncestor = self.tree.openElements[afeIndex - 1]
+
+                # Step 8:
+                # The bookmark is supposed to help us identify where to reinsert
+                # nodes in step 15. We have to ensure that we reinsert nodes after
+                # the node before the active formatting element. Note the bookmark
+                # can move in step 9.7
+                bookmark = self.tree.activeFormattingElements.index(formattingElement)
+
+                # Step 9
+                lastNode = node = furthestBlock
+                innerLoopCounter = 0
+
+                index = self.tree.openElements.index(node)
+                while innerLoopCounter < 3:
+                    innerLoopCounter += 1
+                    # Node is element before node in open elements
+                    index -= 1
+                    node = self.tree.openElements[index]
+                    if node not in self.tree.activeFormattingElements:
+                        self.tree.openElements.remove(node)
+                        continue
+                    # Step 9.6
+                    if node == formattingElement:
+                        break
+                    # Step 9.7
+                    if lastNode == furthestBlock:
+                        bookmark = self.tree.activeFormattingElements.index(node) + 1
+                    # Step 9.8
+                    clone = node.cloneNode()
+                    # Replace node with clone
+                    self.tree.activeFormattingElements[
+                        self.tree.activeFormattingElements.index(node)] = clone
+                    self.tree.openElements[
+                        self.tree.openElements.index(node)] = clone
+                    node = clone
+                    # Step 9.9
+                    # Remove lastNode from its parents, if any
+                    if lastNode.parent:
+                        lastNode.parent.removeChild(lastNode)
+                    node.appendChild(lastNode)
+                    # Step 9.10
+                    lastNode = node
+
+                # Step 10
+                # Foster parent lastNode if commonAncestor is a
+                # table, tbody, tfoot, thead, or tr we need to foster
+                # parent the lastNode
+                if lastNode.parent:
+                    lastNode.parent.removeChild(lastNode)
+
+                if commonAncestor.name in frozenset(("table", "tbody", "tfoot", "thead", "tr")):
+                    parent, insertBefore = self.tree.getTableMisnestedNodePosition()
+                    parent.insertBefore(lastNode, insertBefore)
+                else:
+                    commonAncestor.appendChild(lastNode)
+
+                # Step 11
+                clone = formattingElement.cloneNode()
+
+                # Step 12
+                furthestBlock.reparentChildren(clone)
+
+                # Step 13
+                furthestBlock.appendChild(clone)
+
+                # Step 14
+                self.tree.activeFormattingElements.remove(formattingElement)
+                self.tree.activeFormattingElements.insert(bookmark, clone)
+
+                # Step 15
+                self.tree.openElements.remove(formattingElement)
+                self.tree.openElements.insert(
+                    self.tree.openElements.index(furthestBlock) + 1, clone)
+
+        def endTagAppletMarqueeObject(self, token):
+            if self.tree.elementInScope(token["name"]):
+                self.tree.generateImpliedEndTags()
+            if self.tree.openElements[-1].name != token["name"]:
+                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
+
+            if self.tree.elementInScope(token["name"]):
+                element = self.tree.openElements.pop()
+                while element.name != token["name"]:
+                    element = self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+
+        def endTagBr(self, token):
+            self.parser.parseError("unexpected-end-tag-treated-as",
+                                   {"originalName": "br", "newName": "br element"})
+            self.tree.reconstructActiveFormattingElements()
+            self.tree.insertElement(impliedTagToken("br", "StartTag"))
+            self.tree.openElements.pop()
+
+        def endTagOther(self, token):
+            for node in self.tree.openElements[::-1]:
+                if node.name == token["name"]:
+                    self.tree.generateImpliedEndTags(exclude=token["name"])
+                    if self.tree.openElements[-1].name != token["name"]:
+                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+                    while self.tree.openElements.pop() != node:
+                        pass
+                    break
+                else:
+                    if node.nameTuple in specialElements:
+                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+                        break
+
+    class TextPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([])
+            self.startTagHandler.default = self.startTagOther
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("script", self.endTagScript)])
+            self.endTagHandler.default = self.endTagOther
+
+        def processCharacters(self, token):
+            self.tree.insertText(token["data"])
+
+        def processEOF(self):
+            self.parser.parseError("expected-named-closing-tag-but-got-eof",
+                                   {"name": self.tree.openElements[-1].name})
+            self.tree.openElements.pop()
+            self.parser.phase = self.parser.originalPhase
+            return True
+
+        def startTagOther(self, token):
+            assert False, "Tried to process start tag %s in RCDATA/RAWTEXT mode" % token['name']
+
+        def endTagScript(self, token):
+            node = self.tree.openElements.pop()
+            assert node.name == "script"
+            self.parser.phase = self.parser.originalPhase
+            # The rest of this method is all stuff that only happens if
+            # document.write works
+
+        def endTagOther(self, token):
+            self.tree.openElements.pop()
+            self.parser.phase = self.parser.originalPhase
+
+    class InTablePhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-table
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("caption", self.startTagCaption),
+                ("colgroup", self.startTagColgroup),
+                ("col", self.startTagCol),
+                (("tbody", "tfoot", "thead"), self.startTagRowGroup),
+                (("td", "th", "tr"), self.startTagImplyTbody),
+                ("table", self.startTagTable),
+                (("style", "script"), self.startTagStyleScript),
+                ("input", self.startTagInput),
+                ("form", self.startTagForm)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("table", self.endTagTable),
+                (("body", "caption", "col", "colgroup", "html", "tbody", "td",
+                  "tfoot", "th", "thead", "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods
+        def clearStackToTableContext(self):
+            # "clear the stack back to a table context"
+            while self.tree.openElements[-1].name not in ("table", "html"):
+                # self.parser.parseError("unexpected-implied-end-tag-in-table",
+                #  {"name":  self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+            # When the current node is <html> it's an innerHTML case
+
+        # processing methods
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-table")
+            else:
+                assert self.parser.innerHTML
+            # Stop parsing
+
+        def processSpaceCharacters(self, token):
+            originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["inTableText"]
+            self.parser.phase.originalPhase = originalPhase
+            self.parser.phase.processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            originalPhase = self.parser.phase
+            self.parser.phase = self.parser.phases["inTableText"]
+            self.parser.phase.originalPhase = originalPhase
+            self.parser.phase.processCharacters(token)
+
+        def insertText(self, token):
+            # If we get here there must be at least one non-whitespace character
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processCharacters(token)
+            self.tree.insertFromTable = False
+
+        def startTagCaption(self, token):
+            self.clearStackToTableContext()
+            self.tree.activeFormattingElements.append(Marker)
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inCaption"]
+
+        def startTagColgroup(self, token):
+            self.clearStackToTableContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inColumnGroup"]
+
+        def startTagCol(self, token):
+            self.startTagColgroup(impliedTagToken("colgroup", "StartTag"))
+            return token
+
+        def startTagRowGroup(self, token):
+            self.clearStackToTableContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inTableBody"]
+
+        def startTagImplyTbody(self, token):
+            self.startTagRowGroup(impliedTagToken("tbody", "StartTag"))
+            return token
+
+        def startTagTable(self, token):
+            self.parser.parseError("unexpected-start-tag-implies-end-tag",
+                                   {"startName": "table", "endName": "table"})
+            self.parser.phase.processEndTag(impliedTagToken("table"))
+            if not self.parser.innerHTML:
+                return token
+
+        def startTagStyleScript(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagInput(self, token):
+            if ("type" in token["data"] and
+                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
+                self.parser.parseError("unexpected-hidden-input-in-table")
+                self.tree.insertElement(token)
+                # XXX associate with form
+                self.tree.openElements.pop()
+            else:
+                self.startTagOther(token)
+
+        def startTagForm(self, token):
+            self.parser.parseError("unexpected-form-in-table")
+            if self.tree.formPointer is None:
+                self.tree.insertElement(token)
+                self.tree.formPointer = self.tree.openElements[-1]
+                self.tree.openElements.pop()
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-implies-table-voodoo", {"name": token["name"]})
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processStartTag(token)
+            self.tree.insertFromTable = False
+
+        def endTagTable(self, token):
+            if self.tree.elementInScope("table", variant="table"):
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "table":
+                    self.parser.parseError("end-tag-too-early-named",
+                                           {"gotName": "table",
+                                            "expectedName": self.tree.openElements[-1].name})
+                while self.tree.openElements[-1].name != "table":
+                    self.tree.openElements.pop()
+                self.tree.openElements.pop()
+                self.parser.resetInsertionMode()
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-implies-table-voodoo", {"name": token["name"]})
+            # Do the table magic!
+            self.tree.insertFromTable = True
+            self.parser.phases["inBody"].processEndTag(token)
+            self.tree.insertFromTable = False
+
+    class InTableTextPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.originalPhase = None
+            self.characterTokens = []
+
+        def flushCharacters(self):
+            data = "".join([item["data"] for item in self.characterTokens])
+            if any([item not in spaceCharacters for item in data]):
+                token = {"type": tokenTypes["Characters"], "data": data}
+                self.parser.phases["inTable"].insertText(token)
+            elif data:
+                self.tree.insertText(data)
+            self.characterTokens = []
+
+        def processComment(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+        def processEOF(self):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return True
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                return
+            self.characterTokens.append(token)
+
+        def processSpaceCharacters(self, token):
+            # pretty sure we should never reach here
+            self.characterTokens.append(token)
+    #        assert False
+
+        def processStartTag(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+        def processEndTag(self, token):
+            self.flushCharacters()
+            self.parser.phase = self.originalPhase
+            return token
+
+    class InCaptionPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-caption
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.startTagTableElement)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("caption", self.endTagCaption),
+                ("table", self.endTagTable),
+                (("body", "col", "colgroup", "html", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def ignoreEndTagCaption(self):
+            return not self.tree.elementInScope("caption", variant="table")
+
+        def processEOF(self):
+            self.parser.phases["inBody"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inBody"].processCharacters(token)
+
+        def startTagTableElement(self, token):
+            self.parser.parseError()
+            # XXX Have to duplicate logic here to find out if the tag is ignored
+            ignoreEndTag = self.ignoreEndTagCaption()
+            self.parser.phase.processEndTag(impliedTagToken("caption"))
+            if not ignoreEndTag:
+                return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def endTagCaption(self, token):
+            if not self.ignoreEndTagCaption():
+                # AT this code is quite similar to endTagTable in "InTable"
+                self.tree.generateImpliedEndTags()
+                if self.tree.openElements[-1].name != "caption":
+                    self.parser.parseError("expected-one-end-tag-but-got-another",
+                                           {"gotName": "caption",
+                                            "expectedName": self.tree.openElements[-1].name})
+                while self.tree.openElements[-1].name != "caption":
+                    self.tree.openElements.pop()
+                self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+                self.parser.phase = self.parser.phases["inTable"]
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagTable(self, token):
+            self.parser.parseError()
+            ignoreEndTag = self.ignoreEndTagCaption()
+            self.parser.phase.processEndTag(impliedTagToken("caption"))
+            if not ignoreEndTag:
+                return token
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inBody"].processEndTag(token)
+
+    class InColumnGroupPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-column
+
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("col", self.startTagCol)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("colgroup", self.endTagColgroup),
+                ("col", self.endTagCol)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def ignoreEndTagColgroup(self):
+            return self.tree.openElements[-1].name == "html"
+
+        def processEOF(self):
+            if self.tree.openElements[-1].name == "html":
+                assert self.parser.innerHTML
+                return
+            else:
+                ignoreEndTag = self.ignoreEndTagColgroup()
+                self.endTagColgroup(impliedTagToken("colgroup"))
+                if not ignoreEndTag:
+                    return True
+
+        def processCharacters(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+        def startTagCol(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+            token["selfClosingAcknowledged"] = True
+
+        def startTagOther(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+        def endTagColgroup(self, token):
+            if self.ignoreEndTagColgroup():
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+            else:
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTable"]
+
+        def endTagCol(self, token):
+            self.parser.parseError("no-end-tag", {"name": "col"})
+
+        def endTagOther(self, token):
+            ignoreEndTag = self.ignoreEndTagColgroup()
+            self.endTagColgroup(impliedTagToken("colgroup"))
+            if not ignoreEndTag:
+                return token
+
+    class InTableBodyPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-table0
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("tr", self.startTagTr),
+                (("td", "th"), self.startTagTableCell),
+                (("caption", "col", "colgroup", "tbody", "tfoot", "thead"),
+                 self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),
+                ("table", self.endTagTable),
+                (("body", "caption", "col", "colgroup", "html", "td", "th",
+                  "tr"), self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods
+        def clearStackToTableBodyContext(self):
+            while self.tree.openElements[-1].name not in ("tbody", "tfoot",
+                                                          "thead", "html"):
+                # self.parser.parseError("unexpected-implied-end-tag-in-table",
+                #  {"name": self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+            if self.tree.openElements[-1].name == "html":
+                assert self.parser.innerHTML
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inTable"].processEOF()
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inTable"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            return self.parser.phases["inTable"].processCharacters(token)
+
+        def startTagTr(self, token):
+            self.clearStackToTableBodyContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inRow"]
+
+        def startTagTableCell(self, token):
+            self.parser.parseError("unexpected-cell-in-table-body",
+                                   {"name": token["name"]})
+            self.startTagTr(impliedTagToken("tr", "StartTag"))
+            return token
+
+        def startTagTableOther(self, token):
+            # XXX AT Any ideas on how to share this with endTagTable?
+            if (self.tree.elementInScope("tbody", variant="table") or
+                self.tree.elementInScope("thead", variant="table") or
+                    self.tree.elementInScope("tfoot", variant="table")):
+                self.clearStackToTableBodyContext()
+                self.endTagTableRowGroup(
+                    impliedTagToken(self.tree.openElements[-1].name))
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def startTagOther(self, token):
+            return self.parser.phases["inTable"].processStartTag(token)
+
+        def endTagTableRowGroup(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.clearStackToTableBodyContext()
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTable"]
+            else:
+                self.parser.parseError("unexpected-end-tag-in-table-body",
+                                       {"name": token["name"]})
+
+        def endTagTable(self, token):
+            if (self.tree.elementInScope("tbody", variant="table") or
+                self.tree.elementInScope("thead", variant="table") or
+                    self.tree.elementInScope("tfoot", variant="table")):
+                self.clearStackToTableBodyContext()
+                self.endTagTableRowGroup(
+                    impliedTagToken(self.tree.openElements[-1].name))
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag-in-table-body",
+                                   {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inTable"].processEndTag(token)
+
+    class InRowPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-row
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("td", "th"), self.startTagTableCell),
+                (("caption", "col", "colgroup", "tbody", "tfoot", "thead",
+                  "tr"), self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("tr", self.endTagTr),
+                ("table", self.endTagTable),
+                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),
+                (("body", "caption", "col", "colgroup", "html", "td", "th"),
+                 self.endTagIgnore)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper methods (XXX unify this with other table helper methods)
+        def clearStackToTableRowContext(self):
+            while self.tree.openElements[-1].name not in ("tr", "html"):
+                self.parser.parseError("unexpected-implied-end-tag-in-table-row",
+                                       {"name": self.tree.openElements[-1].name})
+                self.tree.openElements.pop()
+
+        def ignoreEndTagTr(self):
+            return not self.tree.elementInScope("tr", variant="table")
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inTable"].processEOF()
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inTable"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            return self.parser.phases["inTable"].processCharacters(token)
+
+        def startTagTableCell(self, token):
+            self.clearStackToTableRowContext()
+            self.tree.insertElement(token)
+            self.parser.phase = self.parser.phases["inCell"]
+            self.tree.activeFormattingElements.append(Marker)
+
+        def startTagTableOther(self, token):
+            ignoreEndTag = self.ignoreEndTagTr()
+            self.endTagTr(impliedTagToken("tr"))
+            # XXX how are we sure it's always ignored in the innerHTML case?
+            if not ignoreEndTag:
+                return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inTable"].processStartTag(token)
+
+        def endTagTr(self, token):
+            if not self.ignoreEndTagTr():
+                self.clearStackToTableRowContext()
+                self.tree.openElements.pop()
+                self.parser.phase = self.parser.phases["inTableBody"]
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagTable(self, token):
+            ignoreEndTag = self.ignoreEndTagTr()
+            self.endTagTr(impliedTagToken("tr"))
+            # Reprocess the current tag if the tr end tag was not ignored
+            # XXX how are we sure it's always ignored in the innerHTML case?
+            if not ignoreEndTag:
+                return token
+
+        def endTagTableRowGroup(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.endTagTr(impliedTagToken("tr"))
+                return token
+            else:
+                self.parser.parseError()
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag-in-table-row",
+                                   {"name": token["name"]})
+
+        def endTagOther(self, token):
+            return self.parser.phases["inTable"].processEndTag(token)
+
+    class InCellPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-cell
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
+                  "thead", "tr"), self.startTagTableOther)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("td", "th"), self.endTagTableCell),
+                (("body", "caption", "col", "colgroup", "html"), self.endTagIgnore),
+                (("table", "tbody", "tfoot", "thead", "tr"), self.endTagImply)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # helper
+        def closeCell(self):
+            if self.tree.elementInScope("td", variant="table"):
+                self.endTagTableCell(impliedTagToken("td"))
+            elif self.tree.elementInScope("th", variant="table"):
+                self.endTagTableCell(impliedTagToken("th"))
+
+        # the rest
+        def processEOF(self):
+            self.parser.phases["inBody"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inBody"].processCharacters(token)
+
+        def startTagTableOther(self, token):
+            if (self.tree.elementInScope("td", variant="table") or
+                    self.tree.elementInScope("th", variant="table")):
+                self.closeCell()
+                return token
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def startTagOther(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def endTagTableCell(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.tree.generateImpliedEndTags(token["name"])
+                if self.tree.openElements[-1].name != token["name"]:
+                    self.parser.parseError("unexpected-cell-end-tag",
+                                           {"name": token["name"]})
+                    while True:
+                        node = self.tree.openElements.pop()
+                        if node.name == token["name"]:
+                            break
+                else:
+                    self.tree.openElements.pop()
+                self.tree.clearActiveFormattingElements()
+                self.parser.phase = self.parser.phases["inRow"]
+            else:
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagIgnore(self, token):
+            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+        def endTagImply(self, token):
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.closeCell()
+                return token
+            else:
+                # sometimes innerHTML case
+                self.parser.parseError()
+
+        def endTagOther(self, token):
+            return self.parser.phases["inBody"].processEndTag(token)
+
+    class InSelectPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("option", self.startTagOption),
+                ("optgroup", self.startTagOptgroup),
+                ("select", self.startTagSelect),
+                (("input", "keygen", "textarea"), self.startTagInput),
+                ("script", self.startTagScript)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("option", self.endTagOption),
+                ("optgroup", self.endTagOptgroup),
+                ("select", self.endTagSelect)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-select
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-select")
+            else:
+                assert self.parser.innerHTML
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                return
+            self.tree.insertText(token["data"])
+
+        def startTagOption(self, token):
+            # We need to imply </option> if <option> is the current node.
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagOptgroup(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            if self.tree.openElements[-1].name == "optgroup":
+                self.tree.openElements.pop()
+            self.tree.insertElement(token)
+
+        def startTagSelect(self, token):
+            self.parser.parseError("unexpected-select-in-select")
+            self.endTagSelect(impliedTagToken("select"))
+
+        def startTagInput(self, token):
+            self.parser.parseError("unexpected-input-in-select")
+            if self.tree.elementInScope("select", variant="select"):
+                self.endTagSelect(impliedTagToken("select"))
+                return token
+            else:
+                assert self.parser.innerHTML
+
+        def startTagScript(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-in-select",
+                                   {"name": token["name"]})
+
+        def endTagOption(self, token):
+            if self.tree.openElements[-1].name == "option":
+                self.tree.openElements.pop()
+            else:
+                self.parser.parseError("unexpected-end-tag-in-select",
+                                       {"name": "option"})
+
+        def endTagOptgroup(self, token):
+            # </optgroup> implicitly closes <option>
+            if (self.tree.openElements[-1].name == "option" and
+                    self.tree.openElements[-2].name == "optgroup"):
+                self.tree.openElements.pop()
+            # It also closes </optgroup>
+            if self.tree.openElements[-1].name == "optgroup":
+                self.tree.openElements.pop()
+            # But nothing else
+            else:
+                self.parser.parseError("unexpected-end-tag-in-select",
+                                       {"name": "optgroup"})
+
+        def endTagSelect(self, token):
+            if self.tree.elementInScope("select", variant="select"):
+                node = self.tree.openElements.pop()
+                while node.name != "select":
+                    node = self.tree.openElements.pop()
+                self.parser.resetInsertionMode()
+            else:
+                # innerHTML case
+                assert self.parser.innerHTML
+                self.parser.parseError()
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-in-select",
+                                   {"name": token["name"]})
+
+    class InSelectInTablePhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
+                 self.startTagTable)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
+                 self.endTagTable)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            self.parser.phases["inSelect"].processEOF()
+
+        def processCharacters(self, token):
+            return self.parser.phases["inSelect"].processCharacters(token)
+
+        def startTagTable(self, token):
+            self.parser.parseError("unexpected-table-element-start-tag-in-select-in-table", {"name": token["name"]})
+            self.endTagOther(impliedTagToken("select"))
+            return token
+
+        def startTagOther(self, token):
+            return self.parser.phases["inSelect"].processStartTag(token)
+
+        def endTagTable(self, token):
+            self.parser.parseError("unexpected-table-element-end-tag-in-select-in-table", {"name": token["name"]})
+            if self.tree.elementInScope(token["name"], variant="table"):
+                self.endTagOther(impliedTagToken("select"))
+                return token
+
+        def endTagOther(self, token):
+            return self.parser.phases["inSelect"].processEndTag(token)
+
+    class InForeignContentPhase(Phase):
+        breakoutElements = frozenset(["b", "big", "blockquote", "body", "br",
+                                      "center", "code", "dd", "div", "dl", "dt",
+                                      "em", "embed", "h1", "h2", "h3",
+                                      "h4", "h5", "h6", "head", "hr", "i", "img",
+                                      "li", "listing", "menu", "meta", "nobr",
+                                      "ol", "p", "pre", "ruby", "s", "small",
+                                      "span", "strong", "strike", "sub", "sup",
+                                      "table", "tt", "u", "ul", "var"])
+
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+        def adjustSVGTagNames(self, token):
+            replacements = {"altglyph": "altGlyph",
+                            "altglyphdef": "altGlyphDef",
+                            "altglyphitem": "altGlyphItem",
+                            "animatecolor": "animateColor",
+                            "animatemotion": "animateMotion",
+                            "animatetransform": "animateTransform",
+                            "clippath": "clipPath",
+                            "feblend": "feBlend",
+                            "fecolormatrix": "feColorMatrix",
+                            "fecomponenttransfer": "feComponentTransfer",
+                            "fecomposite": "feComposite",
+                            "feconvolvematrix": "feConvolveMatrix",
+                            "fediffuselighting": "feDiffuseLighting",
+                            "fedisplacementmap": "feDisplacementMap",
+                            "fedistantlight": "feDistantLight",
+                            "feflood": "feFlood",
+                            "fefunca": "feFuncA",
+                            "fefuncb": "feFuncB",
+                            "fefuncg": "feFuncG",
+                            "fefuncr": "feFuncR",
+                            "fegaussianblur": "feGaussianBlur",
+                            "feimage": "feImage",
+                            "femerge": "feMerge",
+                            "femergenode": "feMergeNode",
+                            "femorphology": "feMorphology",
+                            "feoffset": "feOffset",
+                            "fepointlight": "fePointLight",
+                            "fespecularlighting": "feSpecularLighting",
+                            "fespotlight": "feSpotLight",
+                            "fetile": "feTile",
+                            "feturbulence": "feTurbulence",
+                            "foreignobject": "foreignObject",
+                            "glyphref": "glyphRef",
+                            "lineargradient": "linearGradient",
+                            "radialgradient": "radialGradient",
+                            "textpath": "textPath"}
+
+            if token["name"] in replacements:
+                token["name"] = replacements[token["name"]]
+
+        def processCharacters(self, token):
+            if token["data"] == "\u0000":
+                token["data"] = "\uFFFD"
+            elif (self.parser.framesetOK and
+                  any(char not in spaceCharacters for char in token["data"])):
+                self.parser.framesetOK = False
+            Phase.processCharacters(self, token)
+
+        def processStartTag(self, token):
+            currentNode = self.tree.openElements[-1]
+            if (token["name"] in self.breakoutElements or
+                (token["name"] == "font" and
+                 set(token["data"].keys()) & set(["color", "face", "size"]))):
+                self.parser.parseError("unexpected-html-element-in-foreign-content",
+                                       {"name": token["name"]})
+                while (self.tree.openElements[-1].namespace !=
+                       self.tree.defaultNamespace and
+                       not self.parser.isHTMLIntegrationPoint(self.tree.openElements[-1]) and
+                       not self.parser.isMathMLTextIntegrationPoint(self.tree.openElements[-1])):
+                    self.tree.openElements.pop()
+                return token
+
+            else:
+                if currentNode.namespace == namespaces["mathml"]:
+                    self.parser.adjustMathMLAttributes(token)
+                elif currentNode.namespace == namespaces["svg"]:
+                    self.adjustSVGTagNames(token)
+                    self.parser.adjustSVGAttributes(token)
+                self.parser.adjustForeignAttributes(token)
+                token["namespace"] = currentNode.namespace
+                self.tree.insertElement(token)
+                if token["selfClosing"]:
+                    self.tree.openElements.pop()
+                    token["selfClosingAcknowledged"] = True
+
+        def processEndTag(self, token):
+            nodeIndex = len(self.tree.openElements) - 1
+            node = self.tree.openElements[-1]
+            if node.name.translate(asciiUpper2Lower) != token["name"]:
+                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
+
+            while True:
+                if node.name.translate(asciiUpper2Lower) == token["name"]:
+                    # XXX this isn't in the spec but it seems necessary
+                    if self.parser.phase == self.parser.phases["inTableText"]:
+                        self.parser.phase.flushCharacters()
+                        self.parser.phase = self.parser.phase.originalPhase
+                    while self.tree.openElements.pop() != node:
+                        assert self.tree.openElements
+                    new_token = None
+                    break
+                nodeIndex -= 1
+
+                node = self.tree.openElements[nodeIndex]
+                if node.namespace != self.tree.defaultNamespace:
+                    continue
+                else:
+                    new_token = self.parser.phase.processEndTag(token)
+                    break
+            return new_token
+
+    class AfterBodyPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([("html", self.endTagHtml)])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            # Stop parsing
+            pass
+
+        def processComment(self, token):
+            # This is needed because data is to be appended to the <html> element
+            # here and not to whatever is currently open.
+            self.tree.insertComment(token, self.tree.openElements[0])
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-after-body")
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-after-body",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def endTagHtml(self, name):
+            if self.parser.innerHTML:
+                self.parser.parseError("unexpected-end-tag-after-body-innerhtml")
+            else:
+                self.parser.phase = self.parser.phases["afterAfterBody"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-after-body",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+    class InFramesetPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#in-frameset
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("frameset", self.startTagFrameset),
+                ("frame", self.startTagFrame),
+                ("noframes", self.startTagNoframes)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("frameset", self.endTagFrameset)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            if self.tree.openElements[-1].name != "html":
+                self.parser.parseError("eof-in-frameset")
+            else:
+                assert self.parser.innerHTML
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-in-frameset")
+
+        def startTagFrameset(self, token):
+            self.tree.insertElement(token)
+
+        def startTagFrame(self, token):
+            self.tree.insertElement(token)
+            self.tree.openElements.pop()
+
+        def startTagNoframes(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-in-frameset",
+                                   {"name": token["name"]})
+
+        def endTagFrameset(self, token):
+            if self.tree.openElements[-1].name == "html":
+                # innerHTML case
+                self.parser.parseError("unexpected-frameset-in-frameset-innerhtml")
+            else:
+                self.tree.openElements.pop()
+            if (not self.parser.innerHTML and
+                    self.tree.openElements[-1].name != "frameset"):
+                # If we're not in innerHTML mode and the current node is not a
+                # "frameset" element (anymore) then switch.
+                self.parser.phase = self.parser.phases["afterFrameset"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-in-frameset",
+                                   {"name": token["name"]})
+
+    class AfterFramesetPhase(Phase):
+        # http://www.whatwg.org/specs/web-apps/current-work/#after3
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("noframes", self.startTagNoframes)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+            self.endTagHandler = _utils.MethodDispatcher([
+                ("html", self.endTagHtml)
+            ])
+            self.endTagHandler.default = self.endTagOther
+
+        def processEOF(self):
+            # Stop parsing
+            pass
+
+        def processCharacters(self, token):
+            self.parser.parseError("unexpected-char-after-frameset")
+
+        def startTagNoframes(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("unexpected-start-tag-after-frameset",
+                                   {"name": token["name"]})
+
+        def endTagHtml(self, token):
+            self.parser.phase = self.parser.phases["afterAfterFrameset"]
+
+        def endTagOther(self, token):
+            self.parser.parseError("unexpected-end-tag-after-frameset",
+                                   {"name": token["name"]})
+
+    class AfterAfterBodyPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+        def processEOF(self):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inBody"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-eof-but-got-char")
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("expected-eof-but-got-start-tag",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-eof-but-got-end-tag",
+                                   {"name": token["name"]})
+            self.parser.phase = self.parser.phases["inBody"]
+            return token
+
+    class AfterAfterFramesetPhase(Phase):
+        def __init__(self, parser, tree):
+            Phase.__init__(self, parser, tree)
+
+            self.startTagHandler = _utils.MethodDispatcher([
+                ("html", self.startTagHtml),
+                ("noframes", self.startTagNoFrames)
+            ])
+            self.startTagHandler.default = self.startTagOther
+
+        def processEOF(self):
+            pass
+
+        def processComment(self, token):
+            self.tree.insertComment(token, self.tree.document)
+
+        def processSpaceCharacters(self, token):
+            return self.parser.phases["inBody"].processSpaceCharacters(token)
+
+        def processCharacters(self, token):
+            self.parser.parseError("expected-eof-but-got-char")
+
+        def startTagHtml(self, token):
+            return self.parser.phases["inBody"].processStartTag(token)
+
+        def startTagNoFrames(self, token):
+            return self.parser.phases["inHead"].processStartTag(token)
+
+        def startTagOther(self, token):
+            self.parser.parseError("expected-eof-but-got-start-tag",
+                                   {"name": token["name"]})
+
+        def processEndTag(self, token):
+            self.parser.parseError("expected-eof-but-got-end-tag",
+                                   {"name": token["name"]})
+    # pylint:enable=unused-argument
+
+    return {
+        "initial": InitialPhase,
+        "beforeHtml": BeforeHtmlPhase,
+        "beforeHead": BeforeHeadPhase,
+        "inHead": InHeadPhase,
+        "inHeadNoscript": InHeadNoscriptPhase,
+        "afterHead": AfterHeadPhase,
+        "inBody": InBodyPhase,
+        "text": TextPhase,
+        "inTable": InTablePhase,
+        "inTableText": InTableTextPhase,
+        "inCaption": InCaptionPhase,
+        "inColumnGroup": InColumnGroupPhase,
+        "inTableBody": InTableBodyPhase,
+        "inRow": InRowPhase,
+        "inCell": InCellPhase,
+        "inSelect": InSelectPhase,
+        "inSelectInTable": InSelectInTablePhase,
+        "inForeignContent": InForeignContentPhase,
+        "afterBody": AfterBodyPhase,
+        "inFrameset": InFramesetPhase,
+        "afterFrameset": AfterFramesetPhase,
+        "afterAfterBody": AfterAfterBodyPhase,
+        "afterAfterFrameset": AfterAfterFramesetPhase,
+        # XXX after after frameset
+    }
+
+
+def adjust_attributes(token, replacements):
+    if PY3 or _utils.PY27:
+        needs_adjustment = viewkeys(token['data']) & viewkeys(replacements)
+    else:
+        needs_adjustment = frozenset(token['data']) & frozenset(replacements)
+    if needs_adjustment:
+        token['data'] = OrderedDict((replacements.get(k, k), v)
+                                    for k, v in token['data'].items())
+
+
+def impliedTagToken(name, type="EndTag", attributes=None,
+                    selfClosing=False):
+    if attributes is None:
+        attributes = {}
+    return {"type": tokenTypes[type], "name": name, "data": attributes,
+            "selfClosing": selfClosing}
+
+
+class ParseError(Exception):
+    """Error in parsed document"""
+    pass
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py
new file mode 100644
index 0000000..2fb3481
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/serializer.py
@@ -0,0 +1,334 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+import re
+
+from codecs import register_error, xmlcharrefreplace_errors
+
+from .constants import voidElements, booleanAttributes, spaceCharacters
+from .constants import rcdataElements, entities, xmlEntities
+from . import treewalkers, _utils
+from xml.sax.saxutils import escape
+
+_quoteAttributeSpecChars = "".join(spaceCharacters) + "\"'=<>`"
+_quoteAttributeSpec = re.compile("[" + _quoteAttributeSpecChars + "]")
+_quoteAttributeLegacy = re.compile("[" + _quoteAttributeSpecChars +
+                                   "\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n"
+                                   "\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15"
+                                   "\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f"
+                                   "\x20\x2f\x60\xa0\u1680\u180e\u180f\u2000"
+                                   "\u2001\u2002\u2003\u2004\u2005\u2006\u2007"
+                                   "\u2008\u2009\u200a\u2028\u2029\u202f\u205f"
+                                   "\u3000]")
+
+
+_encode_entity_map = {}
+_is_ucs4 = len("\U0010FFFF") == 1
+for k, v in list(entities.items()):
+    # skip multi-character entities
+    if ((_is_ucs4 and len(v) > 1) or
+            (not _is_ucs4 and len(v) > 2)):
+        continue
+    if v != "&":
+        if len(v) == 2:
+            v = _utils.surrogatePairToCodepoint(v)
+        else:
+            v = ord(v)
+        if v not in _encode_entity_map or k.islower():
+            # prefer < over < and similarly for &, >, etc.
+            _encode_entity_map[v] = k
+
+
+def htmlentityreplace_errors(exc):
+    if isinstance(exc, (UnicodeEncodeError, UnicodeTranslateError)):
+        res = []
+        codepoints = []
+        skip = False
+        for i, c in enumerate(exc.object[exc.start:exc.end]):
+            if skip:
+                skip = False
+                continue
+            index = i + exc.start
+            if _utils.isSurrogatePair(exc.object[index:min([exc.end, index + 2])]):
+                codepoint = _utils.surrogatePairToCodepoint(exc.object[index:index + 2])
+                skip = True
+            else:
+                codepoint = ord(c)
+            codepoints.append(codepoint)
+        for cp in codepoints:
+            e = _encode_entity_map.get(cp)
+            if e:
+                res.append("&")
+                res.append(e)
+                if not e.endswith(";"):
+                    res.append(";")
+            else:
+                res.append("&#x%s;" % (hex(cp)[2:]))
+        return ("".join(res), exc.end)
+    else:
+        return xmlcharrefreplace_errors(exc)
+
+register_error("htmlentityreplace", htmlentityreplace_errors)
+
+
+def serialize(input, tree="etree", encoding=None, **serializer_opts):
+    # XXX: Should we cache this?
+    walker = treewalkers.getTreeWalker(tree)
+    s = HTMLSerializer(**serializer_opts)
+    return s.render(walker(input), encoding)
+
+
+class HTMLSerializer(object):
+
+    # attribute quoting options
+    quote_attr_values = "legacy"  # be secure by default
+    quote_char = '"'
+    use_best_quote_char = True
+
+    # tag syntax options
+    omit_optional_tags = True
+    minimize_boolean_attributes = True
+    use_trailing_solidus = False
+    space_before_trailing_solidus = True
+
+    # escaping options
+    escape_lt_in_attrs = False
+    escape_rcdata = False
+    resolve_entities = True
+
+    # miscellaneous options
+    alphabetical_attributes = False
+    inject_meta_charset = True
+    strip_whitespace = False
+    sanitize = False
+
+    options = ("quote_attr_values", "quote_char", "use_best_quote_char",
+               "omit_optional_tags", "minimize_boolean_attributes",
+               "use_trailing_solidus", "space_before_trailing_solidus",
+               "escape_lt_in_attrs", "escape_rcdata", "resolve_entities",
+               "alphabetical_attributes", "inject_meta_charset",
+               "strip_whitespace", "sanitize")
+
+    def __init__(self, **kwargs):
+        """Initialize HTMLSerializer.
+
+        Keyword options (default given first unless specified) include:
+
+        inject_meta_charset=True|False
+          Whether it insert a meta element to define the character set of the
+          document.
+        quote_attr_values="legacy"|"spec"|"always"
+          Whether to quote attribute values that don't require quoting
+          per legacy browser behaviour, when required by the standard, or always.
+        quote_char=u'"'|u"'"
+          Use given quote character for attribute quoting. Default is to
+          use double quote unless attribute value contains a double quote,
+          in which case single quotes are used instead.
+        escape_lt_in_attrs=False|True
+          Whether to escape < in attribute values.
+        escape_rcdata=False|True
+          Whether to escape characters that need to be escaped within normal
+          elements within rcdata elements such as style.
+        resolve_entities=True|False
+          Whether to resolve named character entities that appear in the
+          source tree. The XML predefined entities < > & " '
+          are unaffected by this setting.
+        strip_whitespace=False|True
+          Whether to remove semantically meaningless whitespace. (This
+          compresses all whitespace to a single space except within pre.)
+        minimize_boolean_attributes=True|False
+          Shortens boolean attributes to give just the attribute value,
+          for example <input disabled="disabled"> becomes <input disabled>.
+        use_trailing_solidus=False|True
+          Includes a close-tag slash at the end of the start tag of void
+          elements (empty elements whose end tag is forbidden). E.g. <hr/>.
+        space_before_trailing_solidus=True|False
+          Places a space immediately before the closing slash in a tag
+          using a trailing solidus. E.g. <hr />. Requires use_trailing_solidus.
+        sanitize=False|True
+          Strip all unsafe or unknown constructs from output.
+          See `html5lib user documentation`_
+        omit_optional_tags=True|False
+          Omit start/end tags that are optional.
+        alphabetical_attributes=False|True
+          Reorder attributes to be in alphabetical order.
+
+        .. _html5lib user documentation: http://code.google.com/p/html5lib/wiki/UserDocumentation
+        """
+        unexpected_args = frozenset(kwargs) - frozenset(self.options)
+        if len(unexpected_args) > 0:
+            raise TypeError("__init__() got an unexpected keyword argument '%s'" % next(iter(unexpected_args)))
+        if 'quote_char' in kwargs:
+            self.use_best_quote_char = False
+        for attr in self.options:
+            setattr(self, attr, kwargs.get(attr, getattr(self, attr)))
+        self.errors = []
+        self.strict = False
+
+    def encode(self, string):
+        assert(isinstance(string, text_type))
+        if self.encoding:
+            return string.encode(self.encoding, "htmlentityreplace")
+        else:
+            return string
+
+    def encodeStrict(self, string):
+        assert(isinstance(string, text_type))
+        if self.encoding:
+            return string.encode(self.encoding, "strict")
+        else:
+            return string
+
+    def serialize(self, treewalker, encoding=None):
+        # pylint:disable=too-many-nested-blocks
+        self.encoding = encoding
+        in_cdata = False
+        self.errors = []
+
+        if encoding and self.inject_meta_charset:
+            from .filters.inject_meta_charset import Filter
+            treewalker = Filter(treewalker, encoding)
+        # Alphabetical attributes is here under the assumption that none of
+        # the later filters add or change order of attributes; it needs to be
+        # before the sanitizer so escaped elements come out correctly
+        if self.alphabetical_attributes:
+            from .filters.alphabeticalattributes import Filter
+            treewalker = Filter(treewalker)
+        # WhitespaceFilter should be used before OptionalTagFilter
+        # for maximum efficiently of this latter filter
+        if self.strip_whitespace:
+            from .filters.whitespace import Filter
+            treewalker = Filter(treewalker)
+        if self.sanitize:
+            from .filters.sanitizer import Filter
+            treewalker = Filter(treewalker)
+        if self.omit_optional_tags:
+            from .filters.optionaltags import Filter
+            treewalker = Filter(treewalker)
+
+        for token in treewalker:
+            type = token["type"]
+            if type == "Doctype":
+                doctype = "<!DOCTYPE %s" % token["name"]
+
+                if token["publicId"]:
+                    doctype += ' PUBLIC "%s"' % token["publicId"]
+                elif token["systemId"]:
+                    doctype += " SYSTEM"
+                if token["systemId"]:
+                    if token["systemId"].find('"') >= 0:
+                        if token["systemId"].find("'") >= 0:
+                            self.serializeError("System identifer contains both single and double quote characters")
+                        quote_char = "'"
+                    else:
+                        quote_char = '"'
+                    doctype += " %s%s%s" % (quote_char, token["systemId"], quote_char)
+
+                doctype += ">"
+                yield self.encodeStrict(doctype)
+
+            elif type in ("Characters", "SpaceCharacters"):
+                if type == "SpaceCharacters" or in_cdata:
+                    if in_cdata and token["data"].find("</") >= 0:
+                        self.serializeError("Unexpected </ in CDATA")
+                    yield self.encode(token["data"])
+                else:
+                    yield self.encode(escape(token["data"]))
+
+            elif type in ("StartTag", "EmptyTag"):
+                name = token["name"]
+                yield self.encodeStrict("<%s" % name)
+                if name in rcdataElements and not self.escape_rcdata:
+                    in_cdata = True
+                elif in_cdata:
+                    self.serializeError("Unexpected child element of a CDATA element")
+                for (_, attr_name), attr_value in token["data"].items():
+                    # TODO: Add namespace support here
+                    k = attr_name
+                    v = attr_value
+                    yield self.encodeStrict(' ')
+
+                    yield self.encodeStrict(k)
+                    if not self.minimize_boolean_attributes or \
+                        (k not in booleanAttributes.get(name, tuple()) and
+                         k not in booleanAttributes.get("", tuple())):
+                        yield self.encodeStrict("=")
+                        if self.quote_attr_values == "always" or len(v) == 0:
+                            quote_attr = True
+                        elif self.quote_attr_values == "spec":
+                            quote_attr = _quoteAttributeSpec.search(v) is not None
+                        elif self.quote_attr_values == "legacy":
+                            quote_attr = _quoteAttributeLegacy.search(v) is not None
+                        else:
+                            raise ValueError("quote_attr_values must be one of: "
+                                             "'always', 'spec', or 'legacy'")
+                        v = v.replace("&", "&")
+                        if self.escape_lt_in_attrs:
+                            v = v.replace("<", "<")
+                        if quote_attr:
+                            quote_char = self.quote_char
+                            if self.use_best_quote_char:
+                                if "'" in v and '"' not in v:
+                                    quote_char = '"'
+                                elif '"' in v and "'" not in v:
+                                    quote_char = "'"
+                            if quote_char == "'":
+                                v = v.replace("'", "'")
+                            else:
+                                v = v.replace('"', """)
+                            yield self.encodeStrict(quote_char)
+                            yield self.encode(v)
+                            yield self.encodeStrict(quote_char)
+                        else:
+                            yield self.encode(v)
+                if name in voidElements and self.use_trailing_solidus:
+                    if self.space_before_trailing_solidus:
+                        yield self.encodeStrict(" /")
+                    else:
+                        yield self.encodeStrict("/")
+                yield self.encode(">")
+
+            elif type == "EndTag":
+                name = token["name"]
+                if name in rcdataElements:
+                    in_cdata = False
+                elif in_cdata:
+                    self.serializeError("Unexpected child element of a CDATA element")
+                yield self.encodeStrict("</%s>" % name)
+
+            elif type == "Comment":
+                data = token["data"]
+                if data.find("--") >= 0:
+                    self.serializeError("Comment contains --")
+                yield self.encodeStrict("" % token["data"])
+
+            elif type == "Entity":
+                name = token["name"]
+                key = name + ";"
+                if key not in entities:
+                    self.serializeError("Entity %s not recognized" % name)
+                if self.resolve_entities and key not in xmlEntities:
+                    data = entities[key]
+                else:
+                    data = "&%s;" % name
+                yield self.encodeStrict(data)
+
+            else:
+                self.serializeError(token["data"])
+
+    def render(self, treewalker, encoding=None):
+        if encoding:
+            return b"".join(list(self.serialize(treewalker, encoding)))
+        else:
+            return "".join(list(self.serialize(treewalker)))
+
+    def serializeError(self, data="XXX ERROR MESSAGE NEEDED"):
+        # XXX The idea is to make data mandatory.
+        self.errors.append(data)
+        if self.strict:
+            raise SerializeError
+
+
+class SerializeError(Exception):
+    """Error in serialized tree"""
+    pass
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py
new file mode 100644
index 0000000..4f97846
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__init__.py
@@ -0,0 +1,12 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from . import sax
+
+__all__ = ["sax"]
+
+try:
+    from . import genshi  # noqa
+except ImportError:
+    pass
+else:
+    __all__.append("genshi")
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py
new file mode 100644
index 0000000..04e316d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/genshi.py
@@ -0,0 +1,47 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from genshi.core import QName, Attrs
+from genshi.core import START, END, TEXT, COMMENT, DOCTYPE
+
+
+def to_genshi(walker):
+    text = []
+    for token in walker:
+        type = token["type"]
+        if type in ("Characters", "SpaceCharacters"):
+            text.append(token["data"])
+        elif text:
+            yield TEXT, "".join(text), (None, -1, -1)
+            text = []
+
+        if type in ("StartTag", "EmptyTag"):
+            if token["namespace"]:
+                name = "{%s}%s" % (token["namespace"], token["name"])
+            else:
+                name = token["name"]
+            attrs = Attrs([(QName("{%s}%s" % attr if attr[0] is not None else attr[1]), value)
+                           for attr, value in token["data"].items()])
+            yield (START, (QName(name), attrs), (None, -1, -1))
+            if type == "EmptyTag":
+                type = "EndTag"
+
+        if type == "EndTag":
+            if token["namespace"]:
+                name = "{%s}%s" % (token["namespace"], token["name"])
+            else:
+                name = token["name"]
+
+            yield END, QName(name), (None, -1, -1)
+
+        elif type == "Comment":
+            yield COMMENT, token["data"], (None, -1, -1)
+
+        elif type == "Doctype":
+            yield DOCTYPE, (token["name"], token["publicId"],
+                            token["systemId"]), (None, -1, -1)
+
+        else:
+            pass  # FIXME: What to do?
+
+    if text:
+        yield TEXT, "".join(text), (None, -1, -1)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py
new file mode 100644
index 0000000..ad47df9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treeadapters/sax.py
@@ -0,0 +1,44 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.sax.xmlreader import AttributesNSImpl
+
+from ..constants import adjustForeignAttributes, unadjustForeignAttributes
+
+prefix_mapping = {}
+for prefix, localName, namespace in adjustForeignAttributes.values():
+    if prefix is not None:
+        prefix_mapping[prefix] = namespace
+
+
+def to_sax(walker, handler):
+    """Call SAX-like content handler based on treewalker walker"""
+    handler.startDocument()
+    for prefix, namespace in prefix_mapping.items():
+        handler.startPrefixMapping(prefix, namespace)
+
+    for token in walker:
+        type = token["type"]
+        if type == "Doctype":
+            continue
+        elif type in ("StartTag", "EmptyTag"):
+            attrs = AttributesNSImpl(token["data"],
+                                     unadjustForeignAttributes)
+            handler.startElementNS((token["namespace"], token["name"]),
+                                   token["name"],
+                                   attrs)
+            if type == "EmptyTag":
+                handler.endElementNS((token["namespace"], token["name"]),
+                                     token["name"])
+        elif type == "EndTag":
+            handler.endElementNS((token["namespace"], token["name"]),
+                                 token["name"])
+        elif type in ("Characters", "SpaceCharacters"):
+            handler.characters(token["data"])
+        elif type == "Comment":
+            pass
+        else:
+            assert False, "Unknown token type"
+
+    for prefix, namespace in prefix_mapping.items():
+        handler.endPrefixMapping(prefix)
+    handler.endDocument()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py
new file mode 100644
index 0000000..e232884
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py
@@ -0,0 +1,76 @@
+"""A collection of modules for building different kinds of tree from
+HTML documents.
+
+To create a treebuilder for a new type of tree, you need to do
+implement several things:
+
+1) A set of classes for various types of elements: Document, Doctype,
+Comment, Element. These must implement the interface of
+_base.treebuilders.Node (although comment nodes have a different
+signature for their constructor, see treebuilders.etree.Comment)
+Textual content may also be implemented as another node type, or not, as
+your tree implementation requires.
+
+2) A treebuilder object (called TreeBuilder by convention) that
+inherits from treebuilders._base.TreeBuilder. This has 4 required attributes:
+documentClass - the class to use for the bottommost node of a document
+elementClass - the class to use for HTML Elements
+commentClass - the class to use for comments
+doctypeClass - the class to use for doctypes
+It also has one required method:
+getDocument - Returns the root node of the complete document tree
+
+3) If you wish to run the unit tests, you must also create a
+testSerializer method on your treebuilder which accepts a node and
+returns a string containing Node and its children serialized according
+to the format used in the unittests
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .._utils import default_etree
+
+treeBuilderCache = {}
+
+
+def getTreeBuilder(treeType, implementation=None, **kwargs):
+    """Get a TreeBuilder class for various types of tree with built-in support
+
+    treeType - the name of the tree type required (case-insensitive). Supported
+               values are:
+
+               "dom" - A generic builder for DOM implementations, defaulting to
+                       a xml.dom.minidom based implementation.
+               "etree" - A generic builder for tree implementations exposing an
+                         ElementTree-like interface, defaulting to
+                         xml.etree.cElementTree if available and
+                         xml.etree.ElementTree if not.
+               "lxml" - A etree-based builder for lxml.etree, handling
+                        limitations of lxml's implementation.
+
+    implementation - (Currently applies to the "etree" and "dom" tree types). A
+                      module implementing the tree type e.g.
+                      xml.etree.ElementTree or xml.etree.cElementTree."""
+
+    treeType = treeType.lower()
+    if treeType not in treeBuilderCache:
+        if treeType == "dom":
+            from . import dom
+            # Come up with a sane default (pref. from the stdlib)
+            if implementation is None:
+                from xml.dom import minidom
+                implementation = minidom
+            # NEVER cache here, caching is done in the dom submodule
+            return dom.getDomModule(implementation, **kwargs).TreeBuilder
+        elif treeType == "lxml":
+            from . import etree_lxml
+            treeBuilderCache[treeType] = etree_lxml.TreeBuilder
+        elif treeType == "etree":
+            from . import etree
+            if implementation is None:
+                implementation = default_etree
+            # NEVER cache here, caching is done in the etree submodule
+            return etree.getETreeModule(implementation, **kwargs).TreeBuilder
+        else:
+            raise ValueError("""Unrecognised treebuilder "%s" """ % treeType)
+    return treeBuilderCache.get(treeType)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py
new file mode 100644
index 0000000..9798f7c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/base.py
@@ -0,0 +1,383 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from ..constants import scopingElements, tableInsertModeElements, namespaces
+
+# The scope markers are inserted when entering object elements,
+# marquees, table cells, and table captions, and are used to prevent formatting
+# from "leaking" into tables, object elements, and marquees.
+Marker = None
+
+listElementsMap = {
+    None: (frozenset(scopingElements), False),
+    "button": (frozenset(scopingElements | set([(namespaces["html"], "button")])), False),
+    "list": (frozenset(scopingElements | set([(namespaces["html"], "ol"),
+                                              (namespaces["html"], "ul")])), False),
+    "table": (frozenset([(namespaces["html"], "html"),
+                         (namespaces["html"], "table")]), False),
+    "select": (frozenset([(namespaces["html"], "optgroup"),
+                          (namespaces["html"], "option")]), True)
+}
+
+
+class Node(object):
+    def __init__(self, name):
+        """Node representing an item in the tree.
+        name - The tag name associated with the node
+        parent - The parent of the current node (or None for the document node)
+        value - The value of the current node (applies to text nodes and
+        comments
+        attributes - a dict holding name, value pairs for attributes of the node
+        childNodes - a list of child nodes of the current node. This must
+        include all elements but not necessarily other node types
+        _flags - A list of miscellaneous flags that can be set on the node
+        """
+        self.name = name
+        self.parent = None
+        self.value = None
+        self.attributes = {}
+        self.childNodes = []
+        self._flags = []
+
+    def __str__(self):
+        attributesStr = " ".join(["%s=\"%s\"" % (name, value)
+                                  for name, value in
+                                  self.attributes.items()])
+        if attributesStr:
+            return "<%s %s>" % (self.name, attributesStr)
+        else:
+            return "<%s>" % (self.name)
+
+    def __repr__(self):
+        return "<%s>" % (self.name)
+
+    def appendChild(self, node):
+        """Insert node as a child of the current node
+        """
+        raise NotImplementedError
+
+    def insertText(self, data, insertBefore=None):
+        """Insert data as text in the current node, positioned before the
+        start of node insertBefore or to the end of the node's text.
+        """
+        raise NotImplementedError
+
+    def insertBefore(self, node, refNode):
+        """Insert node as a child of the current node, before refNode in the
+        list of child nodes. Raises ValueError if refNode is not a child of
+        the current node"""
+        raise NotImplementedError
+
+    def removeChild(self, node):
+        """Remove node from the children of the current node
+        """
+        raise NotImplementedError
+
+    def reparentChildren(self, newParent):
+        """Move all the children of the current node to newParent.
+        This is needed so that trees that don't store text as nodes move the
+        text in the correct way
+        """
+        # XXX - should this method be made more general?
+        for child in self.childNodes:
+            newParent.appendChild(child)
+        self.childNodes = []
+
+    def cloneNode(self):
+        """Return a shallow copy of the current node i.e. a node with the same
+        name and attributes but with no parent or child nodes
+        """
+        raise NotImplementedError
+
+    def hasContent(self):
+        """Return true if the node has children or text, false otherwise
+        """
+        raise NotImplementedError
+
+
+class ActiveFormattingElements(list):
+    def append(self, node):
+        equalCount = 0
+        if node != Marker:
+            for element in self[::-1]:
+                if element == Marker:
+                    break
+                if self.nodesEqual(element, node):
+                    equalCount += 1
+                if equalCount == 3:
+                    self.remove(element)
+                    break
+        list.append(self, node)
+
+    def nodesEqual(self, node1, node2):
+        if not node1.nameTuple == node2.nameTuple:
+            return False
+
+        if not node1.attributes == node2.attributes:
+            return False
+
+        return True
+
+
+class TreeBuilder(object):
+    """Base treebuilder implementation
+    documentClass - the class to use for the bottommost node of a document
+    elementClass - the class to use for HTML Elements
+    commentClass - the class to use for comments
+    doctypeClass - the class to use for doctypes
+    """
+    # pylint:disable=not-callable
+
+    # Document class
+    documentClass = None
+
+    # The class to use for creating a node
+    elementClass = None
+
+    # The class to use for creating comments
+    commentClass = None
+
+    # The class to use for creating doctypes
+    doctypeClass = None
+
+    # Fragment class
+    fragmentClass = None
+
+    def __init__(self, namespaceHTMLElements):
+        if namespaceHTMLElements:
+            self.defaultNamespace = "http://www.w3.org/1999/xhtml"
+        else:
+            self.defaultNamespace = None
+        self.reset()
+
+    def reset(self):
+        self.openElements = []
+        self.activeFormattingElements = ActiveFormattingElements()
+
+        # XXX - rename these to headElement, formElement
+        self.headPointer = None
+        self.formPointer = None
+
+        self.insertFromTable = False
+
+        self.document = self.documentClass()
+
+    def elementInScope(self, target, variant=None):
+
+        # If we pass a node in we match that. if we pass a string
+        # match any node with that name
+        exactNode = hasattr(target, "nameTuple")
+        if not exactNode:
+            if isinstance(target, text_type):
+                target = (namespaces["html"], target)
+            assert isinstance(target, tuple)
+
+        listElements, invert = listElementsMap[variant]
+
+        for node in reversed(self.openElements):
+            if exactNode and node == target:
+                return True
+            elif not exactNode and node.nameTuple == target:
+                return True
+            elif (invert ^ (node.nameTuple in listElements)):
+                return False
+
+        assert False  # We should never reach this point
+
+    def reconstructActiveFormattingElements(self):
+        # Within this algorithm the order of steps described in the
+        # specification is not quite the same as the order of steps in the
+        # code. It should still do the same though.
+
+        # Step 1: stop the algorithm when there's nothing to do.
+        if not self.activeFormattingElements:
+            return
+
+        # Step 2 and step 3: we start with the last element. So i is -1.
+        i = len(self.activeFormattingElements) - 1
+        entry = self.activeFormattingElements[i]
+        if entry == Marker or entry in self.openElements:
+            return
+
+        # Step 6
+        while entry != Marker and entry not in self.openElements:
+            if i == 0:
+                # This will be reset to 0 below
+                i = -1
+                break
+            i -= 1
+            # Step 5: let entry be one earlier in the list.
+            entry = self.activeFormattingElements[i]
+
+        while True:
+            # Step 7
+            i += 1
+
+            # Step 8
+            entry = self.activeFormattingElements[i]
+            clone = entry.cloneNode()  # Mainly to get a new copy of the attributes
+
+            # Step 9
+            element = self.insertElement({"type": "StartTag",
+                                          "name": clone.name,
+                                          "namespace": clone.namespace,
+                                          "data": clone.attributes})
+
+            # Step 10
+            self.activeFormattingElements[i] = element
+
+            # Step 11
+            if element == self.activeFormattingElements[-1]:
+                break
+
+    def clearActiveFormattingElements(self):
+        entry = self.activeFormattingElements.pop()
+        while self.activeFormattingElements and entry != Marker:
+            entry = self.activeFormattingElements.pop()
+
+    def elementInActiveFormattingElements(self, name):
+        """Check if an element exists between the end of the active
+        formatting elements and the last marker. If it does, return it, else
+        return false"""
+
+        for item in self.activeFormattingElements[::-1]:
+            # Check for Marker first because if it's a Marker it doesn't have a
+            # name attribute.
+            if item == Marker:
+                break
+            elif item.name == name:
+                return item
+        return False
+
+    def insertRoot(self, token):
+        element = self.createElement(token)
+        self.openElements.append(element)
+        self.document.appendChild(element)
+
+    def insertDoctype(self, token):
+        name = token["name"]
+        publicId = token["publicId"]
+        systemId = token["systemId"]
+
+        doctype = self.doctypeClass(name, publicId, systemId)
+        self.document.appendChild(doctype)
+
+    def insertComment(self, token, parent=None):
+        if parent is None:
+            parent = self.openElements[-1]
+        parent.appendChild(self.commentClass(token["data"]))
+
+    def createElement(self, token):
+        """Create an element but don't insert it anywhere"""
+        name = token["name"]
+        namespace = token.get("namespace", self.defaultNamespace)
+        element = self.elementClass(name, namespace)
+        element.attributes = token["data"]
+        return element
+
+    def _getInsertFromTable(self):
+        return self._insertFromTable
+
+    def _setInsertFromTable(self, value):
+        """Switch the function used to insert an element from the
+        normal one to the misnested table one and back again"""
+        self._insertFromTable = value
+        if value:
+            self.insertElement = self.insertElementTable
+        else:
+            self.insertElement = self.insertElementNormal
+
+    insertFromTable = property(_getInsertFromTable, _setInsertFromTable)
+
+    def insertElementNormal(self, token):
+        name = token["name"]
+        assert isinstance(name, text_type), "Element %s not unicode" % name
+        namespace = token.get("namespace", self.defaultNamespace)
+        element = self.elementClass(name, namespace)
+        element.attributes = token["data"]
+        self.openElements[-1].appendChild(element)
+        self.openElements.append(element)
+        return element
+
+    def insertElementTable(self, token):
+        """Create an element and insert it into the tree"""
+        element = self.createElement(token)
+        if self.openElements[-1].name not in tableInsertModeElements:
+            return self.insertElementNormal(token)
+        else:
+            # We should be in the InTable mode. This means we want to do
+            # special magic element rearranging
+            parent, insertBefore = self.getTableMisnestedNodePosition()
+            if insertBefore is None:
+                parent.appendChild(element)
+            else:
+                parent.insertBefore(element, insertBefore)
+            self.openElements.append(element)
+        return element
+
+    def insertText(self, data, parent=None):
+        """Insert text data."""
+        if parent is None:
+            parent = self.openElements[-1]
+
+        if (not self.insertFromTable or (self.insertFromTable and
+                                         self.openElements[-1].name
+                                         not in tableInsertModeElements)):
+            parent.insertText(data)
+        else:
+            # We should be in the InTable mode. This means we want to do
+            # special magic element rearranging
+            parent, insertBefore = self.getTableMisnestedNodePosition()
+            parent.insertText(data, insertBefore)
+
+    def getTableMisnestedNodePosition(self):
+        """Get the foster parent element, and sibling to insert before
+        (or None) when inserting a misnested table node"""
+        # The foster parent element is the one which comes before the most
+        # recently opened table element
+        # XXX - this is really inelegant
+        lastTable = None
+        fosterParent = None
+        insertBefore = None
+        for elm in self.openElements[::-1]:
+            if elm.name == "table":
+                lastTable = elm
+                break
+        if lastTable:
+            # XXX - we should really check that this parent is actually a
+            # node here
+            if lastTable.parent:
+                fosterParent = lastTable.parent
+                insertBefore = lastTable
+            else:
+                fosterParent = self.openElements[
+                    self.openElements.index(lastTable) - 1]
+        else:
+            fosterParent = self.openElements[0]
+        return fosterParent, insertBefore
+
+    def generateImpliedEndTags(self, exclude=None):
+        name = self.openElements[-1].name
+        # XXX td, th and tr are not actually needed
+        if (name in frozenset(("dd", "dt", "li", "option", "optgroup", "p", "rp", "rt")) and
+                name != exclude):
+            self.openElements.pop()
+            # XXX This is not entirely what the specification says. We should
+            # investigate it more closely.
+            self.generateImpliedEndTags(exclude)
+
+    def getDocument(self):
+        "Return the final tree"
+        return self.document
+
+    def getFragment(self):
+        "Return the final fragment"
+        # assert self.innerHTML
+        fragment = self.fragmentClass()
+        self.openElements[0].reparentChildren(fragment)
+        return fragment
+
+    def testSerializer(self, node):
+        """Serialize the subtree of node in the format required by unit tests
+        node - the node from which to start serializing"""
+        raise NotImplementedError
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py
new file mode 100644
index 0000000..dcfac22
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/dom.py
@@ -0,0 +1,236 @@
+from __future__ import absolute_import, division, unicode_literals
+
+
+from collections import MutableMapping
+from xml.dom import minidom, Node
+import weakref
+
+from . import base
+from .. import constants
+from ..constants import namespaces
+from .._utils import moduleFactoryFactory
+
+
+def getDomBuilder(DomImplementation):
+    Dom = DomImplementation
+
+    class AttrList(MutableMapping):
+        def __init__(self, element):
+            self.element = element
+
+        def __iter__(self):
+            return iter(self.element.attributes.keys())
+
+        def __setitem__(self, name, value):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                attr = self.element.ownerDocument.createAttribute(name)
+                attr.value = value
+                self.element.attributes[name] = attr
+
+        def __len__(self):
+            return len(self.element.attributes)
+
+        def items(self):
+            return list(self.element.attributes.items())
+
+        def values(self):
+            return list(self.element.attributes.values())
+
+        def __getitem__(self, name):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                return self.element.attributes[name].value
+
+        def __delitem__(self, name):
+            if isinstance(name, tuple):
+                raise NotImplementedError
+            else:
+                del self.element.attributes[name]
+
+    class NodeBuilder(base.Node):
+        def __init__(self, element):
+            base.Node.__init__(self, element.nodeName)
+            self.element = element
+
+        namespace = property(lambda self: hasattr(self.element, "namespaceURI") and
+                             self.element.namespaceURI or None)
+
+        def appendChild(self, node):
+            node.parent = self
+            self.element.appendChild(node.element)
+
+        def insertText(self, data, insertBefore=None):
+            text = self.element.ownerDocument.createTextNode(data)
+            if insertBefore:
+                self.element.insertBefore(text, insertBefore.element)
+            else:
+                self.element.appendChild(text)
+
+        def insertBefore(self, node, refNode):
+            self.element.insertBefore(node.element, refNode.element)
+            node.parent = self
+
+        def removeChild(self, node):
+            if node.element.parentNode == self.element:
+                self.element.removeChild(node.element)
+            node.parent = None
+
+        def reparentChildren(self, newParent):
+            while self.element.hasChildNodes():
+                child = self.element.firstChild
+                self.element.removeChild(child)
+                newParent.element.appendChild(child)
+            self.childNodes = []
+
+        def getAttributes(self):
+            return AttrList(self.element)
+
+        def setAttributes(self, attributes):
+            if attributes:
+                for name, value in list(attributes.items()):
+                    if isinstance(name, tuple):
+                        if name[0] is not None:
+                            qualifiedName = (name[0] + ":" + name[1])
+                        else:
+                            qualifiedName = name[1]
+                        self.element.setAttributeNS(name[2], qualifiedName,
+                                                    value)
+                    else:
+                        self.element.setAttribute(
+                            name, value)
+        attributes = property(getAttributes, setAttributes)
+
+        def cloneNode(self):
+            return NodeBuilder(self.element.cloneNode(False))
+
+        def hasContent(self):
+            return self.element.hasChildNodes()
+
+        def getNameTuple(self):
+            if self.namespace is None:
+                return namespaces["html"], self.name
+            else:
+                return self.namespace, self.name
+
+        nameTuple = property(getNameTuple)
+
+    class TreeBuilder(base.TreeBuilder):  # pylint:disable=unused-variable
+        def documentClass(self):
+            self.dom = Dom.getDOMImplementation().createDocument(None, None, None)
+            return weakref.proxy(self)
+
+        def insertDoctype(self, token):
+            name = token["name"]
+            publicId = token["publicId"]
+            systemId = token["systemId"]
+
+            domimpl = Dom.getDOMImplementation()
+            doctype = domimpl.createDocumentType(name, publicId, systemId)
+            self.document.appendChild(NodeBuilder(doctype))
+            if Dom == minidom:
+                doctype.ownerDocument = self.dom
+
+        def elementClass(self, name, namespace=None):
+            if namespace is None and self.defaultNamespace is None:
+                node = self.dom.createElement(name)
+            else:
+                node = self.dom.createElementNS(namespace, name)
+
+            return NodeBuilder(node)
+
+        def commentClass(self, data):
+            return NodeBuilder(self.dom.createComment(data))
+
+        def fragmentClass(self):
+            return NodeBuilder(self.dom.createDocumentFragment())
+
+        def appendChild(self, node):
+            self.dom.appendChild(node.element)
+
+        def testSerializer(self, element):
+            return testSerializer(element)
+
+        def getDocument(self):
+            return self.dom
+
+        def getFragment(self):
+            return base.TreeBuilder.getFragment(self).element
+
+        def insertText(self, data, parent=None):
+            data = data
+            if parent != self:
+                base.TreeBuilder.insertText(self, data, parent)
+            else:
+                # HACK: allow text nodes as children of the document node
+                if hasattr(self.dom, '_child_node_types'):
+                    # pylint:disable=protected-access
+                    if Node.TEXT_NODE not in self.dom._child_node_types:
+                        self.dom._child_node_types = list(self.dom._child_node_types)
+                        self.dom._child_node_types.append(Node.TEXT_NODE)
+                self.dom.appendChild(self.dom.createTextNode(data))
+
+        implementation = DomImplementation
+        name = None
+
+    def testSerializer(element):
+        element.normalize()
+        rv = []
+
+        def serializeElement(element, indent=0):
+            if element.nodeType == Node.DOCUMENT_TYPE_NODE:
+                if element.name:
+                    if element.publicId or element.systemId:
+                        publicId = element.publicId or ""
+                        systemId = element.systemId or ""
+                        rv.append("""|%s<!DOCTYPE %s "%s" "%s">""" %
+                                  (' ' * indent, element.name, publicId, systemId))
+                    else:
+                        rv.append("|%s<!DOCTYPE %s>" % (' ' * indent, element.name))
+                else:
+                    rv.append("|%s<!DOCTYPE >" % (' ' * indent,))
+            elif element.nodeType == Node.DOCUMENT_NODE:
+                rv.append("#document")
+            elif element.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
+                rv.append("#document-fragment")
+            elif element.nodeType == Node.COMMENT_NODE:
+                rv.append("|%s" % (' ' * indent, element.nodeValue))
+            elif element.nodeType == Node.TEXT_NODE:
+                rv.append("|%s\"%s\"" % (' ' * indent, element.nodeValue))
+            else:
+                if (hasattr(element, "namespaceURI") and
+                        element.namespaceURI is not None):
+                    name = "%s %s" % (constants.prefixes[element.namespaceURI],
+                                      element.nodeName)
+                else:
+                    name = element.nodeName
+                rv.append("|%s<%s>" % (' ' * indent, name))
+                if element.hasAttributes():
+                    attributes = []
+                    for i in range(len(element.attributes)):
+                        attr = element.attributes.item(i)
+                        name = attr.nodeName
+                        value = attr.value
+                        ns = attr.namespaceURI
+                        if ns:
+                            name = "%s %s" % (constants.prefixes[ns], attr.localName)
+                        else:
+                            name = attr.nodeName
+                        attributes.append((name, value))
+
+                    for name, value in sorted(attributes):
+                        rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+            indent += 2
+            for child in element.childNodes:
+                serializeElement(child, indent)
+        serializeElement(element, 0)
+
+        return "\n".join(rv)
+
+    return locals()
+
+
+# The actual means to get a module!
+getDomModule = moduleFactoryFactory(getDomBuilder)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py
new file mode 100644
index 0000000..0dedf44
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree.py
@@ -0,0 +1,340 @@
+from __future__ import absolute_import, division, unicode_literals
+# pylint:disable=protected-access
+
+from pip._vendor.six import text_type
+
+import re
+
+from . import base
+from .. import _ihatexml
+from .. import constants
+from ..constants import namespaces
+from .._utils import moduleFactoryFactory
+
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+
+def getETreeBuilder(ElementTreeImplementation, fullTree=False):
+    ElementTree = ElementTreeImplementation
+    ElementTreeCommentType = ElementTree.Comment("asd").tag
+
+    class Element(base.Node):
+        def __init__(self, name, namespace=None):
+            self._name = name
+            self._namespace = namespace
+            self._element = ElementTree.Element(self._getETreeTag(name,
+                                                                  namespace))
+            if namespace is None:
+                self.nameTuple = namespaces["html"], self._name
+            else:
+                self.nameTuple = self._namespace, self._name
+            self.parent = None
+            self._childNodes = []
+            self._flags = []
+
+        def _getETreeTag(self, name, namespace):
+            if namespace is None:
+                etree_tag = name
+            else:
+                etree_tag = "{%s}%s" % (namespace, name)
+            return etree_tag
+
+        def _setName(self, name):
+            self._name = name
+            self._element.tag = self._getETreeTag(self._name, self._namespace)
+
+        def _getName(self):
+            return self._name
+
+        name = property(_getName, _setName)
+
+        def _setNamespace(self, namespace):
+            self._namespace = namespace
+            self._element.tag = self._getETreeTag(self._name, self._namespace)
+
+        def _getNamespace(self):
+            return self._namespace
+
+        namespace = property(_getNamespace, _setNamespace)
+
+        def _getAttributes(self):
+            return self._element.attrib
+
+        def _setAttributes(self, attributes):
+            # Delete existing attributes first
+            # XXX - there may be a better way to do this...
+            for key in list(self._element.attrib.keys()):
+                del self._element.attrib[key]
+            for key, value in attributes.items():
+                if isinstance(key, tuple):
+                    name = "{%s}%s" % (key[2], key[1])
+                else:
+                    name = key
+                self._element.set(name, value)
+
+        attributes = property(_getAttributes, _setAttributes)
+
+        def _getChildNodes(self):
+            return self._childNodes
+
+        def _setChildNodes(self, value):
+            del self._element[:]
+            self._childNodes = []
+            for element in value:
+                self.insertChild(element)
+
+        childNodes = property(_getChildNodes, _setChildNodes)
+
+        def hasContent(self):
+            """Return true if the node has children or text"""
+            return bool(self._element.text or len(self._element))
+
+        def appendChild(self, node):
+            self._childNodes.append(node)
+            self._element.append(node._element)
+            node.parent = self
+
+        def insertBefore(self, node, refNode):
+            index = list(self._element).index(refNode._element)
+            self._element.insert(index, node._element)
+            node.parent = self
+
+        def removeChild(self, node):
+            self._childNodes.remove(node)
+            self._element.remove(node._element)
+            node.parent = None
+
+        def insertText(self, data, insertBefore=None):
+            if not(len(self._element)):
+                if not self._element.text:
+                    self._element.text = ""
+                self._element.text += data
+            elif insertBefore is None:
+                # Insert the text as the tail of the last child element
+                if not self._element[-1].tail:
+                    self._element[-1].tail = ""
+                self._element[-1].tail += data
+            else:
+                # Insert the text before the specified node
+                children = list(self._element)
+                index = children.index(insertBefore._element)
+                if index > 0:
+                    if not self._element[index - 1].tail:
+                        self._element[index - 1].tail = ""
+                    self._element[index - 1].tail += data
+                else:
+                    if not self._element.text:
+                        self._element.text = ""
+                    self._element.text += data
+
+        def cloneNode(self):
+            element = type(self)(self.name, self.namespace)
+            for name, value in self.attributes.items():
+                element.attributes[name] = value
+            return element
+
+        def reparentChildren(self, newParent):
+            if newParent.childNodes:
+                newParent.childNodes[-1]._element.tail += self._element.text
+            else:
+                if not newParent._element.text:
+                    newParent._element.text = ""
+                if self._element.text is not None:
+                    newParent._element.text += self._element.text
+            self._element.text = ""
+            base.Node.reparentChildren(self, newParent)
+
+    class Comment(Element):
+        def __init__(self, data):
+            # Use the superclass constructor to set all properties on the
+            # wrapper element
+            self._element = ElementTree.Comment(data)
+            self.parent = None
+            self._childNodes = []
+            self._flags = []
+
+        def _getData(self):
+            return self._element.text
+
+        def _setData(self, value):
+            self._element.text = value
+
+        data = property(_getData, _setData)
+
+    class DocumentType(Element):
+        def __init__(self, name, publicId, systemId):
+            Element.__init__(self, "<!DOCTYPE>")
+            self._element.text = name
+            self.publicId = publicId
+            self.systemId = systemId
+
+        def _getPublicId(self):
+            return self._element.get("publicId", "")
+
+        def _setPublicId(self, value):
+            if value is not None:
+                self._element.set("publicId", value)
+
+        publicId = property(_getPublicId, _setPublicId)
+
+        def _getSystemId(self):
+            return self._element.get("systemId", "")
+
+        def _setSystemId(self, value):
+            if value is not None:
+                self._element.set("systemId", value)
+
+        systemId = property(_getSystemId, _setSystemId)
+
+    class Document(Element):
+        def __init__(self):
+            Element.__init__(self, "DOCUMENT_ROOT")
+
+    class DocumentFragment(Element):
+        def __init__(self):
+            Element.__init__(self, "DOCUMENT_FRAGMENT")
+
+    def testSerializer(element):
+        rv = []
+
+        def serializeElement(element, indent=0):
+            if not(hasattr(element, "tag")):
+                element = element.getroot()
+            if element.tag == "<!DOCTYPE>":
+                if element.get("publicId") or element.get("systemId"):
+                    publicId = element.get("publicId") or ""
+                    systemId = element.get("systemId") or ""
+                    rv.append("""<!DOCTYPE %s "%s" "%s">""" %
+                              (element.text, publicId, systemId))
+                else:
+                    rv.append("<!DOCTYPE %s>" % (element.text,))
+            elif element.tag == "DOCUMENT_ROOT":
+                rv.append("#document")
+                if element.text is not None:
+                    rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+                if element.tail is not None:
+                    raise TypeError("Document node cannot have tail")
+                if hasattr(element, "attrib") and len(element.attrib):
+                    raise TypeError("Document node cannot have attributes")
+            elif element.tag == ElementTreeCommentType:
+                rv.append("|%s" % (' ' * indent, element.text))
+            else:
+                assert isinstance(element.tag, text_type), \
+                    "Expected unicode, got %s, %s" % (type(element.tag), element.tag)
+                nsmatch = tag_regexp.match(element.tag)
+
+                if nsmatch is None:
+                    name = element.tag
+                else:
+                    ns, name = nsmatch.groups()
+                    prefix = constants.prefixes[ns]
+                    name = "%s %s" % (prefix, name)
+                rv.append("|%s<%s>" % (' ' * indent, name))
+
+                if hasattr(element, "attrib"):
+                    attributes = []
+                    for name, value in element.attrib.items():
+                        nsmatch = tag_regexp.match(name)
+                        if nsmatch is not None:
+                            ns, name = nsmatch.groups()
+                            prefix = constants.prefixes[ns]
+                            attr_string = "%s %s" % (prefix, name)
+                        else:
+                            attr_string = name
+                        attributes.append((attr_string, value))
+
+                    for name, value in sorted(attributes):
+                        rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+                if element.text:
+                    rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+            indent += 2
+            for child in element:
+                serializeElement(child, indent)
+            if element.tail:
+                rv.append("|%s\"%s\"" % (' ' * (indent - 2), element.tail))
+        serializeElement(element, 0)
+
+        return "\n".join(rv)
+
+    def tostring(element):  # pylint:disable=unused-variable
+        """Serialize an element and its child nodes to a string"""
+        rv = []
+        filter = _ihatexml.InfosetFilter()
+
+        def serializeElement(element):
+            if isinstance(element, ElementTree.ElementTree):
+                element = element.getroot()
+
+            if element.tag == "<!DOCTYPE>":
+                if element.get("publicId") or element.get("systemId"):
+                    publicId = element.get("publicId") or ""
+                    systemId = element.get("systemId") or ""
+                    rv.append("""<!DOCTYPE %s PUBLIC "%s" "%s">""" %
+                              (element.text, publicId, systemId))
+                else:
+                    rv.append("<!DOCTYPE %s>" % (element.text,))
+            elif element.tag == "DOCUMENT_ROOT":
+                if element.text is not None:
+                    rv.append(element.text)
+                if element.tail is not None:
+                    raise TypeError("Document node cannot have tail")
+                if hasattr(element, "attrib") and len(element.attrib):
+                    raise TypeError("Document node cannot have attributes")
+
+                for child in element:
+                    serializeElement(child)
+
+            elif element.tag == ElementTreeCommentType:
+                rv.append("" % (element.text,))
+            else:
+                # This is assumed to be an ordinary element
+                if not element.attrib:
+                    rv.append("<%s>" % (filter.fromXmlName(element.tag),))
+                else:
+                    attr = " ".join(["%s=\"%s\"" % (
+                        filter.fromXmlName(name), value)
+                        for name, value in element.attrib.items()])
+                    rv.append("<%s %s>" % (element.tag, attr))
+                if element.text:
+                    rv.append(element.text)
+
+                for child in element:
+                    serializeElement(child)
+
+                rv.append("</%s>" % (element.tag,))
+
+            if element.tail:
+                rv.append(element.tail)
+
+        serializeElement(element)
+
+        return "".join(rv)
+
+    class TreeBuilder(base.TreeBuilder):  # pylint:disable=unused-variable
+        documentClass = Document
+        doctypeClass = DocumentType
+        elementClass = Element
+        commentClass = Comment
+        fragmentClass = DocumentFragment
+        implementation = ElementTreeImplementation
+
+        def testSerializer(self, element):
+            return testSerializer(element)
+
+        def getDocument(self):
+            if fullTree:
+                return self.document._element
+            else:
+                if self.defaultNamespace is not None:
+                    return self.document._element.find(
+                        "{%s}html" % self.defaultNamespace)
+                else:
+                    return self.document._element.find("html")
+
+        def getFragment(self):
+            return base.TreeBuilder.getFragment(self)._element
+
+    return locals()
+
+
+getETreeModule = moduleFactoryFactory(getETreeBuilder)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py
new file mode 100644
index 0000000..908820c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treebuilders/etree_lxml.py
@@ -0,0 +1,367 @@
+"""Module for supporting the lxml.etree library. The idea here is to use as much
+of the native library as possible, without using fragile hacks like custom element
+names that break between releases. The downside of this is that we cannot represent
+all possible trees; specifically the following are known to cause problems:
+
+Text or comments as siblings of the root element
+Docypes with no name
+
+When any of these things occur, we emit a DataLossWarning
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+# pylint:disable=protected-access
+
+import warnings
+import re
+import sys
+
+from . import base
+from ..constants import DataLossWarning
+from .. import constants
+from . import etree as etree_builders
+from .. import _ihatexml
+
+import lxml.etree as etree
+
+
+fullTree = True
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+comment_type = etree.Comment("asd").tag
+
+
+class DocumentType(object):
+    def __init__(self, name, publicId, systemId):
+        self.name = name
+        self.publicId = publicId
+        self.systemId = systemId
+
+
+class Document(object):
+    def __init__(self):
+        self._elementTree = None
+        self._childNodes = []
+
+    def appendChild(self, element):
+        self._elementTree.getroot().addnext(element._element)
+
+    def _getChildNodes(self):
+        return self._childNodes
+
+    childNodes = property(_getChildNodes)
+
+
+def testSerializer(element):
+    rv = []
+    infosetFilter = _ihatexml.InfosetFilter(preventDoubleDashComments=True)
+
+    def serializeElement(element, indent=0):
+        if not hasattr(element, "tag"):
+            if hasattr(element, "getroot"):
+                # Full tree case
+                rv.append("#document")
+                if element.docinfo.internalDTD:
+                    if not (element.docinfo.public_id or
+                            element.docinfo.system_url):
+                        dtd_str = "<!DOCTYPE %s>" % element.docinfo.root_name
+                    else:
+                        dtd_str = """<!DOCTYPE %s "%s" "%s">""" % (
+                            element.docinfo.root_name,
+                            element.docinfo.public_id,
+                            element.docinfo.system_url)
+                    rv.append("|%s%s" % (' ' * (indent + 2), dtd_str))
+                next_element = element.getroot()
+                while next_element.getprevious() is not None:
+                    next_element = next_element.getprevious()
+                while next_element is not None:
+                    serializeElement(next_element, indent + 2)
+                    next_element = next_element.getnext()
+            elif isinstance(element, str) or isinstance(element, bytes):
+                # Text in a fragment
+                assert isinstance(element, str) or sys.version_info[0] == 2
+                rv.append("|%s\"%s\"" % (' ' * indent, element))
+            else:
+                # Fragment case
+                rv.append("#document-fragment")
+                for next_element in element:
+                    serializeElement(next_element, indent + 2)
+        elif element.tag == comment_type:
+            rv.append("|%s" % (' ' * indent, element.text))
+            if hasattr(element, "tail") and element.tail:
+                rv.append("|%s\"%s\"" % (' ' * indent, element.tail))
+        else:
+            assert isinstance(element, etree._Element)
+            nsmatch = etree_builders.tag_regexp.match(element.tag)
+            if nsmatch is not None:
+                ns = nsmatch.group(1)
+                tag = nsmatch.group(2)
+                prefix = constants.prefixes[ns]
+                rv.append("|%s<%s %s>" % (' ' * indent, prefix,
+                                          infosetFilter.fromXmlName(tag)))
+            else:
+                rv.append("|%s<%s>" % (' ' * indent,
+                                       infosetFilter.fromXmlName(element.tag)))
+
+            if hasattr(element, "attrib"):
+                attributes = []
+                for name, value in element.attrib.items():
+                    nsmatch = tag_regexp.match(name)
+                    if nsmatch is not None:
+                        ns, name = nsmatch.groups()
+                        name = infosetFilter.fromXmlName(name)
+                        prefix = constants.prefixes[ns]
+                        attr_string = "%s %s" % (prefix, name)
+                    else:
+                        attr_string = infosetFilter.fromXmlName(name)
+                    attributes.append((attr_string, value))
+
+                for name, value in sorted(attributes):
+                    rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
+
+            if element.text:
+                rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
+            indent += 2
+            for child in element:
+                serializeElement(child, indent)
+            if hasattr(element, "tail") and element.tail:
+                rv.append("|%s\"%s\"" % (' ' * (indent - 2), element.tail))
+    serializeElement(element, 0)
+
+    return "\n".join(rv)
+
+
+def tostring(element):
+    """Serialize an element and its child nodes to a string"""
+    rv = []
+
+    def serializeElement(element):
+        if not hasattr(element, "tag"):
+            if element.docinfo.internalDTD:
+                if element.docinfo.doctype:
+                    dtd_str = element.docinfo.doctype
+                else:
+                    dtd_str = "<!DOCTYPE %s>" % element.docinfo.root_name
+                rv.append(dtd_str)
+            serializeElement(element.getroot())
+
+        elif element.tag == comment_type:
+            rv.append("" % (element.text,))
+
+        else:
+            # This is assumed to be an ordinary element
+            if not element.attrib:
+                rv.append("<%s>" % (element.tag,))
+            else:
+                attr = " ".join(["%s=\"%s\"" % (name, value)
+                                 for name, value in element.attrib.items()])
+                rv.append("<%s %s>" % (element.tag, attr))
+            if element.text:
+                rv.append(element.text)
+
+            for child in element:
+                serializeElement(child)
+
+            rv.append("</%s>" % (element.tag,))
+
+        if hasattr(element, "tail") and element.tail:
+            rv.append(element.tail)
+
+    serializeElement(element)
+
+    return "".join(rv)
+
+
+class TreeBuilder(base.TreeBuilder):
+    documentClass = Document
+    doctypeClass = DocumentType
+    elementClass = None
+    commentClass = None
+    fragmentClass = Document
+    implementation = etree
+
+    def __init__(self, namespaceHTMLElements, fullTree=False):
+        builder = etree_builders.getETreeModule(etree, fullTree=fullTree)
+        infosetFilter = self.infosetFilter = _ihatexml.InfosetFilter(preventDoubleDashComments=True)
+        self.namespaceHTMLElements = namespaceHTMLElements
+
+        class Attributes(dict):
+            def __init__(self, element, value=None):
+                if value is None:
+                    value = {}
+                self._element = element
+                dict.__init__(self, value)  # pylint:disable=non-parent-init-called
+                for key, value in self.items():
+                    if isinstance(key, tuple):
+                        name = "{%s}%s" % (key[2], infosetFilter.coerceAttribute(key[1]))
+                    else:
+                        name = infosetFilter.coerceAttribute(key)
+                    self._element._element.attrib[name] = value
+
+            def __setitem__(self, key, value):
+                dict.__setitem__(self, key, value)
+                if isinstance(key, tuple):
+                    name = "{%s}%s" % (key[2], infosetFilter.coerceAttribute(key[1]))
+                else:
+                    name = infosetFilter.coerceAttribute(key)
+                self._element._element.attrib[name] = value
+
+        class Element(builder.Element):
+            def __init__(self, name, namespace):
+                name = infosetFilter.coerceElement(name)
+                builder.Element.__init__(self, name, namespace=namespace)
+                self._attributes = Attributes(self)
+
+            def _setName(self, name):
+                self._name = infosetFilter.coerceElement(name)
+                self._element.tag = self._getETreeTag(
+                    self._name, self._namespace)
+
+            def _getName(self):
+                return infosetFilter.fromXmlName(self._name)
+
+            name = property(_getName, _setName)
+
+            def _getAttributes(self):
+                return self._attributes
+
+            def _setAttributes(self, attributes):
+                self._attributes = Attributes(self, attributes)
+
+            attributes = property(_getAttributes, _setAttributes)
+
+            def insertText(self, data, insertBefore=None):
+                data = infosetFilter.coerceCharacters(data)
+                builder.Element.insertText(self, data, insertBefore)
+
+            def appendChild(self, child):
+                builder.Element.appendChild(self, child)
+
+        class Comment(builder.Comment):
+            def __init__(self, data):
+                data = infosetFilter.coerceComment(data)
+                builder.Comment.__init__(self, data)
+
+            def _setData(self, data):
+                data = infosetFilter.coerceComment(data)
+                self._element.text = data
+
+            def _getData(self):
+                return self._element.text
+
+            data = property(_getData, _setData)
+
+        self.elementClass = Element
+        self.commentClass = Comment
+        # self.fragmentClass = builder.DocumentFragment
+        base.TreeBuilder.__init__(self, namespaceHTMLElements)
+
+    def reset(self):
+        base.TreeBuilder.reset(self)
+        self.insertComment = self.insertCommentInitial
+        self.initial_comments = []
+        self.doctype = None
+
+    def testSerializer(self, element):
+        return testSerializer(element)
+
+    def getDocument(self):
+        if fullTree:
+            return self.document._elementTree
+        else:
+            return self.document._elementTree.getroot()
+
+    def getFragment(self):
+        fragment = []
+        element = self.openElements[0]._element
+        if element.text:
+            fragment.append(element.text)
+        fragment.extend(list(element))
+        if element.tail:
+            fragment.append(element.tail)
+        return fragment
+
+    def insertDoctype(self, token):
+        name = token["name"]
+        publicId = token["publicId"]
+        systemId = token["systemId"]
+
+        if not name:
+            warnings.warn("lxml cannot represent empty doctype", DataLossWarning)
+            self.doctype = None
+        else:
+            coercedName = self.infosetFilter.coerceElement(name)
+            if coercedName != name:
+                warnings.warn("lxml cannot represent non-xml doctype", DataLossWarning)
+
+            doctype = self.doctypeClass(coercedName, publicId, systemId)
+            self.doctype = doctype
+
+    def insertCommentInitial(self, data, parent=None):
+        assert parent is None or parent is self.document
+        assert self.document._elementTree is None
+        self.initial_comments.append(data)
+
+    def insertCommentMain(self, data, parent=None):
+        if (parent == self.document and
+                self.document._elementTree.getroot()[-1].tag == comment_type):
+            warnings.warn("lxml cannot represent adjacent comments beyond the root elements", DataLossWarning)
+        super(TreeBuilder, self).insertComment(data, parent)
+
+    def insertRoot(self, token):
+        """Create the document root"""
+        # Because of the way libxml2 works, it doesn't seem to be possible to
+        # alter information like the doctype after the tree has been parsed.
+        # Therefore we need to use the built-in parser to create our initial
+        # tree, after which we can add elements like normal
+        docStr = ""
+        if self.doctype:
+            assert self.doctype.name
+            docStr += "<!DOCTYPE %s" % self.doctype.name
+            if (self.doctype.publicId is not None or
+                    self.doctype.systemId is not None):
+                docStr += (' PUBLIC "%s" ' %
+                           (self.infosetFilter.coercePubid(self.doctype.publicId or "")))
+                if self.doctype.systemId:
+                    sysid = self.doctype.systemId
+                    if sysid.find("'") >= 0 and sysid.find('"') >= 0:
+                        warnings.warn("DOCTYPE system cannot contain single and double quotes", DataLossWarning)
+                        sysid = sysid.replace("'", 'U00027')
+                    if sysid.find("'") >= 0:
+                        docStr += '"%s"' % sysid
+                    else:
+                        docStr += "'%s'" % sysid
+                else:
+                    docStr += "''"
+            docStr += ">"
+            if self.doctype.name != token["name"]:
+                warnings.warn("lxml cannot represent doctype with a different name to the root element", DataLossWarning)
+        docStr += "<THIS_SHOULD_NEVER_APPEAR_PUBLICLY/>"
+        root = etree.fromstring(docStr)
+
+        # Append the initial comments:
+        for comment_token in self.initial_comments:
+            comment = self.commentClass(comment_token["data"])
+            root.addprevious(comment._element)
+
+        # Create the root document and add the ElementTree to it
+        self.document = self.documentClass()
+        self.document._elementTree = root.getroottree()
+
+        # Give the root element the right name
+        name = token["name"]
+        namespace = token.get("namespace", self.defaultNamespace)
+        if namespace is None:
+            etree_tag = name
+        else:
+            etree_tag = "{%s}%s" % (namespace, name)
+        root.tag = etree_tag
+
+        # Add the root element to the internal child/open data structures
+        root_element = self.elementClass(name, namespace)
+        root_element._element = root
+        self.document._childNodes.append(root_element)
+        self.openElements.append(root_element)
+
+        # Reset to the default insert comment function
+        self.insertComment = self.insertCommentMain
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py
new file mode 100644
index 0000000..9e19a55
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/__init__.py
@@ -0,0 +1,143 @@
+"""A collection of modules for iterating through different kinds of
+tree, generating tokens identical to those produced by the tokenizer
+module.
+
+To create a tree walker for a new type of tree, you need to do
+implement a tree walker object (called TreeWalker by convention) that
+implements a 'serialize' method taking a tree as sole argument and
+returning an iterator generating tokens.
+"""
+
+from __future__ import absolute_import, division, unicode_literals
+
+from .. import constants
+from .._utils import default_etree
+
+__all__ = ["getTreeWalker", "pprint", "dom", "etree", "genshi", "etree_lxml"]
+
+treeWalkerCache = {}
+
+
+def getTreeWalker(treeType, implementation=None, **kwargs):
+    """Get a TreeWalker class for various types of tree with built-in support
+
+    Args:
+        treeType (str): the name of the tree type required (case-insensitive).
+            Supported values are:
+
+            - "dom": The xml.dom.minidom DOM implementation
+            - "etree": A generic walker for tree implementations exposing an
+                       elementtree-like interface (known to work with
+                       ElementTree, cElementTree and lxml.etree).
+            - "lxml": Optimized walker for lxml.etree
+            - "genshi": a Genshi stream
+
+        Implementation: A module implementing the tree type e.g.
+            xml.etree.ElementTree or cElementTree (Currently applies to the
+            "etree" tree type only).
+    """
+
+    treeType = treeType.lower()
+    if treeType not in treeWalkerCache:
+        if treeType == "dom":
+            from . import dom
+            treeWalkerCache[treeType] = dom.TreeWalker
+        elif treeType == "genshi":
+            from . import genshi
+            treeWalkerCache[treeType] = genshi.TreeWalker
+        elif treeType == "lxml":
+            from . import etree_lxml
+            treeWalkerCache[treeType] = etree_lxml.TreeWalker
+        elif treeType == "etree":
+            from . import etree
+            if implementation is None:
+                implementation = default_etree
+            # XXX: NEVER cache here, caching is done in the etree submodule
+            return etree.getETreeModule(implementation, **kwargs).TreeWalker
+    return treeWalkerCache.get(treeType)
+
+
+def concatenateCharacterTokens(tokens):
+    pendingCharacters = []
+    for token in tokens:
+        type = token["type"]
+        if type in ("Characters", "SpaceCharacters"):
+            pendingCharacters.append(token["data"])
+        else:
+            if pendingCharacters:
+                yield {"type": "Characters", "data": "".join(pendingCharacters)}
+                pendingCharacters = []
+            yield token
+    if pendingCharacters:
+        yield {"type": "Characters", "data": "".join(pendingCharacters)}
+
+
+def pprint(walker):
+    """Pretty printer for tree walkers"""
+    output = []
+    indent = 0
+    for token in concatenateCharacterTokens(walker):
+        type = token["type"]
+        if type in ("StartTag", "EmptyTag"):
+            # tag name
+            if token["namespace"] and token["namespace"] != constants.namespaces["html"]:
+                if token["namespace"] in constants.prefixes:
+                    ns = constants.prefixes[token["namespace"]]
+                else:
+                    ns = token["namespace"]
+                name = "%s %s" % (ns, token["name"])
+            else:
+                name = token["name"]
+            output.append("%s<%s>" % (" " * indent, name))
+            indent += 2
+            # attributes (sorted for consistent ordering)
+            attrs = token["data"]
+            for (namespace, localname), value in sorted(attrs.items()):
+                if namespace:
+                    if namespace in constants.prefixes:
+                        ns = constants.prefixes[namespace]
+                    else:
+                        ns = namespace
+                    name = "%s %s" % (ns, localname)
+                else:
+                    name = localname
+                output.append("%s%s=\"%s\"" % (" " * indent, name, value))
+            # self-closing
+            if type == "EmptyTag":
+                indent -= 2
+
+        elif type == "EndTag":
+            indent -= 2
+
+        elif type == "Comment":
+            output.append("%s" % (" " * indent, token["data"]))
+
+        elif type == "Doctype":
+            if token["name"]:
+                if token["publicId"]:
+                    output.append("""%s<!DOCTYPE %s "%s" "%s">""" %
+                                  (" " * indent,
+                                   token["name"],
+                                   token["publicId"],
+                                   token["systemId"] if token["systemId"] else ""))
+                elif token["systemId"]:
+                    output.append("""%s<!DOCTYPE %s "" "%s">""" %
+                                  (" " * indent,
+                                   token["name"],
+                                   token["systemId"]))
+                else:
+                    output.append("%s<!DOCTYPE %s>" % (" " * indent,
+                                                       token["name"]))
+            else:
+                output.append("%s<!DOCTYPE >" % (" " * indent,))
+
+        elif type == "Characters":
+            output.append("%s\"%s\"" % (" " * indent, token["data"]))
+
+        elif type == "SpaceCharacters":
+            assert False, "concatenateCharacterTokens should have got rid of all Space tokens"
+
+        else:
+            raise ValueError("Unknown token type, %s" % type)
+
+    return "\n".join(output)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py
new file mode 100644
index 0000000..36e1ba2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/base.py
@@ -0,0 +1,150 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.dom import Node
+from ..constants import namespaces, voidElements, spaceCharacters
+
+__all__ = ["DOCUMENT", "DOCTYPE", "TEXT", "ELEMENT", "COMMENT", "ENTITY", "UNKNOWN",
+           "TreeWalker", "NonRecursiveTreeWalker"]
+
+DOCUMENT = Node.DOCUMENT_NODE
+DOCTYPE = Node.DOCUMENT_TYPE_NODE
+TEXT = Node.TEXT_NODE
+ELEMENT = Node.ELEMENT_NODE
+COMMENT = Node.COMMENT_NODE
+ENTITY = Node.ENTITY_NODE
+UNKNOWN = "<#UNKNOWN#>"
+
+spaceCharacters = "".join(spaceCharacters)
+
+
+class TreeWalker(object):
+    def __init__(self, tree):
+        self.tree = tree
+
+    def __iter__(self):
+        raise NotImplementedError
+
+    def error(self, msg):
+        return {"type": "SerializeError", "data": msg}
+
+    def emptyTag(self, namespace, name, attrs, hasChildren=False):
+        yield {"type": "EmptyTag", "name": name,
+               "namespace": namespace,
+               "data": attrs}
+        if hasChildren:
+            yield self.error("Void element has children")
+
+    def startTag(self, namespace, name, attrs):
+        return {"type": "StartTag",
+                "name": name,
+                "namespace": namespace,
+                "data": attrs}
+
+    def endTag(self, namespace, name):
+        return {"type": "EndTag",
+                "name": name,
+                "namespace": namespace}
+
+    def text(self, data):
+        data = data
+        middle = data.lstrip(spaceCharacters)
+        left = data[:len(data) - len(middle)]
+        if left:
+            yield {"type": "SpaceCharacters", "data": left}
+        data = middle
+        middle = data.rstrip(spaceCharacters)
+        right = data[len(middle):]
+        if middle:
+            yield {"type": "Characters", "data": middle}
+        if right:
+            yield {"type": "SpaceCharacters", "data": right}
+
+    def comment(self, data):
+        return {"type": "Comment", "data": data}
+
+    def doctype(self, name, publicId=None, systemId=None):
+        return {"type": "Doctype",
+                "name": name,
+                "publicId": publicId,
+                "systemId": systemId}
+
+    def entity(self, name):
+        return {"type": "Entity", "name": name}
+
+    def unknown(self, nodeType):
+        return self.error("Unknown node type: " + nodeType)
+
+
+class NonRecursiveTreeWalker(TreeWalker):
+    def getNodeDetails(self, node):
+        raise NotImplementedError
+
+    def getFirstChild(self, node):
+        raise NotImplementedError
+
+    def getNextSibling(self, node):
+        raise NotImplementedError
+
+    def getParentNode(self, node):
+        raise NotImplementedError
+
+    def __iter__(self):
+        currentNode = self.tree
+        while currentNode is not None:
+            details = self.getNodeDetails(currentNode)
+            type, details = details[0], details[1:]
+            hasChildren = False
+
+            if type == DOCTYPE:
+                yield self.doctype(*details)
+
+            elif type == TEXT:
+                for token in self.text(*details):
+                    yield token
+
+            elif type == ELEMENT:
+                namespace, name, attributes, hasChildren = details
+                if (not namespace or namespace == namespaces["html"]) and name in voidElements:
+                    for token in self.emptyTag(namespace, name, attributes,
+                                               hasChildren):
+                        yield token
+                    hasChildren = False
+                else:
+                    yield self.startTag(namespace, name, attributes)
+
+            elif type == COMMENT:
+                yield self.comment(details[0])
+
+            elif type == ENTITY:
+                yield self.entity(details[0])
+
+            elif type == DOCUMENT:
+                hasChildren = True
+
+            else:
+                yield self.unknown(details[0])
+
+            if hasChildren:
+                firstChild = self.getFirstChild(currentNode)
+            else:
+                firstChild = None
+
+            if firstChild is not None:
+                currentNode = firstChild
+            else:
+                while currentNode is not None:
+                    details = self.getNodeDetails(currentNode)
+                    type, details = details[0], details[1:]
+                    if type == ELEMENT:
+                        namespace, name, attributes, hasChildren = details
+                        if (namespace and namespace != namespaces["html"]) or name not in voidElements:
+                            yield self.endTag(namespace, name)
+                    if self.tree is currentNode:
+                        currentNode = None
+                        break
+                    nextSibling = self.getNextSibling(currentNode)
+                    if nextSibling is not None:
+                        currentNode = nextSibling
+                        break
+                    else:
+                        currentNode = self.getParentNode(currentNode)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py
new file mode 100644
index 0000000..b0c89b0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/dom.py
@@ -0,0 +1,43 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from xml.dom import Node
+
+from . import base
+
+
+class TreeWalker(base.NonRecursiveTreeWalker):
+    def getNodeDetails(self, node):
+        if node.nodeType == Node.DOCUMENT_TYPE_NODE:
+            return base.DOCTYPE, node.name, node.publicId, node.systemId
+
+        elif node.nodeType in (Node.TEXT_NODE, Node.CDATA_SECTION_NODE):
+            return base.TEXT, node.nodeValue
+
+        elif node.nodeType == Node.ELEMENT_NODE:
+            attrs = {}
+            for attr in list(node.attributes.keys()):
+                attr = node.getAttributeNode(attr)
+                if attr.namespaceURI:
+                    attrs[(attr.namespaceURI, attr.localName)] = attr.value
+                else:
+                    attrs[(None, attr.name)] = attr.value
+            return (base.ELEMENT, node.namespaceURI, node.nodeName,
+                    attrs, node.hasChildNodes())
+
+        elif node.nodeType == Node.COMMENT_NODE:
+            return base.COMMENT, node.nodeValue
+
+        elif node.nodeType in (Node.DOCUMENT_NODE, Node.DOCUMENT_FRAGMENT_NODE):
+            return (base.DOCUMENT,)
+
+        else:
+            return base.UNKNOWN, node.nodeType
+
+    def getFirstChild(self, node):
+        return node.firstChild
+
+    def getNextSibling(self, node):
+        return node.nextSibling
+
+    def getParentNode(self, node):
+        return node.parentNode
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py
new file mode 100644
index 0000000..bcf17d1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree.py
@@ -0,0 +1,137 @@
+from __future__ import absolute_import, division, unicode_literals
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict
+    except ImportError:
+        OrderedDict = dict
+
+import re
+
+from pip._vendor.six import string_types
+
+from . import base
+from .._utils import moduleFactoryFactory
+
+tag_regexp = re.compile("{([^}]*)}(.*)")
+
+
+def getETreeBuilder(ElementTreeImplementation):
+    ElementTree = ElementTreeImplementation
+    ElementTreeCommentType = ElementTree.Comment("asd").tag
+
+    class TreeWalker(base.NonRecursiveTreeWalker):  # pylint:disable=unused-variable
+        """Given the particular ElementTree representation, this implementation,
+        to avoid using recursion, returns "nodes" as tuples with the following
+        content:
+
+        1. The current element
+
+        2. The index of the element relative to its parent
+
+        3. A stack of ancestor elements
+
+        4. A flag "text", "tail" or None to indicate if the current node is a
+           text node; either the text or tail of the current element (1)
+        """
+        def getNodeDetails(self, node):
+            if isinstance(node, tuple):  # It might be the root Element
+                elt, _, _, flag = node
+                if flag in ("text", "tail"):
+                    return base.TEXT, getattr(elt, flag)
+                else:
+                    node = elt
+
+            if not(hasattr(node, "tag")):
+                node = node.getroot()
+
+            if node.tag in ("DOCUMENT_ROOT", "DOCUMENT_FRAGMENT"):
+                return (base.DOCUMENT,)
+
+            elif node.tag == "<!DOCTYPE>":
+                return (base.DOCTYPE, node.text,
+                        node.get("publicId"), node.get("systemId"))
+
+            elif node.tag == ElementTreeCommentType:
+                return base.COMMENT, node.text
+
+            else:
+                assert isinstance(node.tag, string_types), type(node.tag)
+                # This is assumed to be an ordinary element
+                match = tag_regexp.match(node.tag)
+                if match:
+                    namespace, tag = match.groups()
+                else:
+                    namespace = None
+                    tag = node.tag
+                attrs = OrderedDict()
+                for name, value in list(node.attrib.items()):
+                    match = tag_regexp.match(name)
+                    if match:
+                        attrs[(match.group(1), match.group(2))] = value
+                    else:
+                        attrs[(None, name)] = value
+                return (base.ELEMENT, namespace, tag,
+                        attrs, len(node) or node.text)
+
+        def getFirstChild(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                element, key, parents, flag = node, None, [], None
+
+            if flag in ("text", "tail"):
+                return None
+            else:
+                if element.text:
+                    return element, key, parents, "text"
+                elif len(element):
+                    parents.append(element)
+                    return element[0], 0, parents, None
+                else:
+                    return None
+
+        def getNextSibling(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                return None
+
+            if flag == "text":
+                if len(element):
+                    parents.append(element)
+                    return element[0], 0, parents, None
+                else:
+                    return None
+            else:
+                if element.tail and flag != "tail":
+                    return element, key, parents, "tail"
+                elif key < len(parents[-1]) - 1:
+                    return parents[-1][key + 1], key + 1, parents, None
+                else:
+                    return None
+
+        def getParentNode(self, node):
+            if isinstance(node, tuple):
+                element, key, parents, flag = node
+            else:
+                return None
+
+            if flag == "text":
+                if not parents:
+                    return element
+                else:
+                    return element, key, parents, None
+            else:
+                parent = parents.pop()
+                if not parents:
+                    return parent
+                else:
+                    assert list(parents[-1]).count(parent) == 1
+                    return parent, list(parents[-1]).index(parent), parents, None
+
+    return locals()
+
+getETreeModule = moduleFactoryFactory(getETreeBuilder)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py
new file mode 100644
index 0000000..e81ddf3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/etree_lxml.py
@@ -0,0 +1,213 @@
+from __future__ import absolute_import, division, unicode_literals
+from pip._vendor.six import text_type
+
+from lxml import etree
+from ..treebuilders.etree import tag_regexp
+
+from . import base
+
+from .. import _ihatexml
+
+
+def ensure_str(s):
+    if s is None:
+        return None
+    elif isinstance(s, text_type):
+        return s
+    else:
+        return s.decode("ascii", "strict")
+
+
+class Root(object):
+    def __init__(self, et):
+        self.elementtree = et
+        self.children = []
+
+        try:
+            if et.docinfo.internalDTD:
+                self.children.append(Doctype(self,
+                                             ensure_str(et.docinfo.root_name),
+                                             ensure_str(et.docinfo.public_id),
+                                             ensure_str(et.docinfo.system_url)))
+        except AttributeError:
+            pass
+
+        try:
+            node = et.getroot()
+        except AttributeError:
+            node = et
+
+        while node.getprevious() is not None:
+            node = node.getprevious()
+        while node is not None:
+            self.children.append(node)
+            node = node.getnext()
+
+        self.text = None
+        self.tail = None
+
+    def __getitem__(self, key):
+        return self.children[key]
+
+    def getnext(self):
+        return None
+
+    def __len__(self):
+        return 1
+
+
+class Doctype(object):
+    def __init__(self, root_node, name, public_id, system_id):
+        self.root_node = root_node
+        self.name = name
+        self.public_id = public_id
+        self.system_id = system_id
+
+        self.text = None
+        self.tail = None
+
+    def getnext(self):
+        return self.root_node.children[1]
+
+
+class FragmentRoot(Root):
+    def __init__(self, children):
+        self.children = [FragmentWrapper(self, child) for child in children]
+        self.text = self.tail = None
+
+    def getnext(self):
+        return None
+
+
+class FragmentWrapper(object):
+    def __init__(self, fragment_root, obj):
+        self.root_node = fragment_root
+        self.obj = obj
+        if hasattr(self.obj, 'text'):
+            self.text = ensure_str(self.obj.text)
+        else:
+            self.text = None
+        if hasattr(self.obj, 'tail'):
+            self.tail = ensure_str(self.obj.tail)
+        else:
+            self.tail = None
+
+    def __getattr__(self, name):
+        return getattr(self.obj, name)
+
+    def getnext(self):
+        siblings = self.root_node.children
+        idx = siblings.index(self)
+        if idx < len(siblings) - 1:
+            return siblings[idx + 1]
+        else:
+            return None
+
+    def __getitem__(self, key):
+        return self.obj[key]
+
+    def __bool__(self):
+        return bool(self.obj)
+
+    def getparent(self):
+        return None
+
+    def __str__(self):
+        return str(self.obj)
+
+    def __unicode__(self):
+        return str(self.obj)
+
+    def __len__(self):
+        return len(self.obj)
+
+
+class TreeWalker(base.NonRecursiveTreeWalker):
+    def __init__(self, tree):
+        # pylint:disable=redefined-variable-type
+        if isinstance(tree, list):
+            self.fragmentChildren = set(tree)
+            tree = FragmentRoot(tree)
+        else:
+            self.fragmentChildren = set()
+            tree = Root(tree)
+        base.NonRecursiveTreeWalker.__init__(self, tree)
+        self.filter = _ihatexml.InfosetFilter()
+
+    def getNodeDetails(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            return base.TEXT, ensure_str(getattr(node, key))
+
+        elif isinstance(node, Root):
+            return (base.DOCUMENT,)
+
+        elif isinstance(node, Doctype):
+            return base.DOCTYPE, node.name, node.public_id, node.system_id
+
+        elif isinstance(node, FragmentWrapper) and not hasattr(node, "tag"):
+            return base.TEXT, ensure_str(node.obj)
+
+        elif node.tag == etree.Comment:
+            return base.COMMENT, ensure_str(node.text)
+
+        elif node.tag == etree.Entity:
+            return base.ENTITY, ensure_str(node.text)[1:-1]  # strip &;
+
+        else:
+            # This is assumed to be an ordinary element
+            match = tag_regexp.match(ensure_str(node.tag))
+            if match:
+                namespace, tag = match.groups()
+            else:
+                namespace = None
+                tag = ensure_str(node.tag)
+            attrs = {}
+            for name, value in list(node.attrib.items()):
+                name = ensure_str(name)
+                value = ensure_str(value)
+                match = tag_regexp.match(name)
+                if match:
+                    attrs[(match.group(1), match.group(2))] = value
+                else:
+                    attrs[(None, name)] = value
+            return (base.ELEMENT, namespace, self.filter.fromXmlName(tag),
+                    attrs, len(node) > 0 or node.text)
+
+    def getFirstChild(self, node):
+        assert not isinstance(node, tuple), "Text nodes have no children"
+
+        assert len(node) or node.text, "Node has no children"
+        if node.text:
+            return (node, "text")
+        else:
+            return node[0]
+
+    def getNextSibling(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            if key == "text":
+                # XXX: we cannot use a "bool(node) and node[0] or None" construct here
+                # because node[0] might evaluate to False if it has no child element
+                if len(node):
+                    return node[0]
+                else:
+                    return None
+            else:  # tail
+                return node.getnext()
+
+        return (node, "tail") if node.tail else node.getnext()
+
+    def getParentNode(self, node):
+        if isinstance(node, tuple):  # Text node
+            node, key = node
+            assert key in ("text", "tail"), "Text nodes are text or tail, found %s" % key
+            if key == "text":
+                return node
+            # else: fallback to "normal" processing
+        elif node in self.fragmentChildren:
+            return None
+
+        return node.getparent()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py
new file mode 100644
index 0000000..7483be2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/html5lib/treewalkers/genshi.py
@@ -0,0 +1,69 @@
+from __future__ import absolute_import, division, unicode_literals
+
+from genshi.core import QName
+from genshi.core import START, END, XML_NAMESPACE, DOCTYPE, TEXT
+from genshi.core import START_NS, END_NS, START_CDATA, END_CDATA, PI, COMMENT
+
+from . import base
+
+from ..constants import voidElements, namespaces
+
+
+class TreeWalker(base.TreeWalker):
+    def __iter__(self):
+        # Buffer the events so we can pass in the following one
+        previous = None
+        for event in self.tree:
+            if previous is not None:
+                for token in self.tokens(previous, event):
+                    yield token
+            previous = event
+
+        # Don't forget the final event!
+        if previous is not None:
+            for token in self.tokens(previous, None):
+                yield token
+
+    def tokens(self, event, next):
+        kind, data, _ = event
+        if kind == START:
+            tag, attribs = data
+            name = tag.localname
+            namespace = tag.namespace
+            converted_attribs = {}
+            for k, v in attribs:
+                if isinstance(k, QName):
+                    converted_attribs[(k.namespace, k.localname)] = v
+                else:
+                    converted_attribs[(None, k)] = v
+
+            if namespace == namespaces["html"] and name in voidElements:
+                for token in self.emptyTag(namespace, name, converted_attribs,
+                                           not next or next[0] != END or
+                                           next[1] != tag):
+                    yield token
+            else:
+                yield self.startTag(namespace, name, converted_attribs)
+
+        elif kind == END:
+            name = data.localname
+            namespace = data.namespace
+            if namespace != namespaces["html"] or name not in voidElements:
+                yield self.endTag(namespace, name)
+
+        elif kind == COMMENT:
+            yield self.comment(data)
+
+        elif kind == TEXT:
+            for token in self.text(data):
+                yield token
+
+        elif kind == DOCTYPE:
+            yield self.doctype(*data)
+
+        elif kind in (XML_NAMESPACE, DOCTYPE, START_NS, END_NS,
+                      START_CDATA, END_CDATA, PI):
+            pass
+
+        else:
+            yield self.unknown(kind)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/ipaddress.py b/venv1/lib/python3.5/site-packages/pip/_vendor/ipaddress.py
new file mode 100644
index 0000000..9cf71a7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/ipaddress.py
@@ -0,0 +1,2425 @@
+# Copyright 2007 Google Inc.
+#  Licensed to PSF under a Contributor Agreement.
+
+"""A fast, lightweight IPv4/IPv6 manipulation library in Python.
+
+This library is used to create/poke/manipulate IPv4 and IPv6 addresses
+and networks.
+
+"""
+
+from __future__ import unicode_literals
+
+
+import itertools
+import struct
+
+__version__ = '1.0.17'
+
+# Compatibility functions
+_compat_int_types = (int,)
+try:
+    _compat_int_types = (int, long)
+except NameError:
+    pass
+try:
+    _compat_str = unicode
+except NameError:
+    _compat_str = str
+    assert bytes != str
+if b'\0'[0] == 0:  # Python 3 semantics
+    def _compat_bytes_to_byte_vals(byt):
+        return byt
+else:
+    def _compat_bytes_to_byte_vals(byt):
+        return [struct.unpack(b'!B', b)[0] for b in byt]
+try:
+    _compat_int_from_byte_vals = int.from_bytes
+except AttributeError:
+    def _compat_int_from_byte_vals(bytvals, endianess):
+        assert endianess == 'big'
+        res = 0
+        for bv in bytvals:
+            assert isinstance(bv, _compat_int_types)
+            res = (res << 8) + bv
+        return res
+
+
+def _compat_to_bytes(intval, length, endianess):
+    assert isinstance(intval, _compat_int_types)
+    assert endianess == 'big'
+    if length == 4:
+        if intval < 0 or intval >= 2 ** 32:
+            raise struct.error("integer out of range for 'I' format code")
+        return struct.pack(b'!I', intval)
+    elif length == 16:
+        if intval < 0 or intval >= 2 ** 128:
+            raise struct.error("integer out of range for 'QQ' format code")
+        return struct.pack(b'!QQ', intval >> 64, intval & 0xffffffffffffffff)
+    else:
+        raise NotImplementedError()
+if hasattr(int, 'bit_length'):
+    # Not int.bit_length , since that won't work in 2.7 where long exists
+    def _compat_bit_length(i):
+        return i.bit_length()
+else:
+    def _compat_bit_length(i):
+        for res in itertools.count():
+            if i >> res == 0:
+                return res
+
+
+def _compat_range(start, end, step=1):
+    assert step > 0
+    i = start
+    while i < end:
+        yield i
+        i += step
+
+
+class _TotalOrderingMixin(object):
+    __slots__ = ()
+
+    # Helper that derives the other comparison operations from
+    # __lt__ and __eq__
+    # We avoid functools.total_ordering because it doesn't handle
+    # NotImplemented correctly yet (http://bugs.python.org/issue10042)
+    def __eq__(self, other):
+        raise NotImplementedError
+
+    def __ne__(self, other):
+        equal = self.__eq__(other)
+        if equal is NotImplemented:
+            return NotImplemented
+        return not equal
+
+    def __lt__(self, other):
+        raise NotImplementedError
+
+    def __le__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented or not less:
+            return self.__eq__(other)
+        return less
+
+    def __gt__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented:
+            return NotImplemented
+        equal = self.__eq__(other)
+        if equal is NotImplemented:
+            return NotImplemented
+        return not (less or equal)
+
+    def __ge__(self, other):
+        less = self.__lt__(other)
+        if less is NotImplemented:
+            return NotImplemented
+        return not less
+
+
+IPV4LENGTH = 32
+IPV6LENGTH = 128
+
+
+class AddressValueError(ValueError):
+    """A Value Error related to the address."""
+
+
+class NetmaskValueError(ValueError):
+    """A Value Error related to the netmask."""
+
+
+def ip_address(address):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP address.  Either IPv4 or
+          IPv6 addresses may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Address or IPv6Address object.
+
+    Raises:
+        ValueError: if the *address* passed isn't either a v4 or a v6
+          address
+
+    """
+    try:
+        return IPv4Address(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Address(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    if isinstance(address, bytes):
+        raise AddressValueError(
+            '%r does not appear to be an IPv4 or IPv6 address. '
+            'Did you pass in a bytes (str in Python 2) instead of'
+            ' a unicode object?' % address)
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 address' %
+                     address)
+
+
+def ip_network(address, strict=True):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP network.  Either IPv4 or
+          IPv6 networks may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Network or IPv6Network object.
+
+    Raises:
+        ValueError: if the string passed isn't either a v4 or a v6
+          address. Or if the network has host bits set.
+
+    """
+    try:
+        return IPv4Network(address, strict)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Network(address, strict)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    if isinstance(address, bytes):
+        raise AddressValueError(
+            '%r does not appear to be an IPv4 or IPv6 network. '
+            'Did you pass in a bytes (str in Python 2) instead of'
+            ' a unicode object?' % address)
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 network' %
+                     address)
+
+
+def ip_interface(address):
+    """Take an IP string/int and return an object of the correct type.
+
+    Args:
+        address: A string or integer, the IP address.  Either IPv4 or
+          IPv6 addresses may be supplied; integers less than 2**32 will
+          be considered to be IPv4 by default.
+
+    Returns:
+        An IPv4Interface or IPv6Interface object.
+
+    Raises:
+        ValueError: if the string passed isn't either a v4 or a v6
+          address.
+
+    Notes:
+        The IPv?Interface classes describe an Address on a particular
+        Network, so they're basically a combination of both the Address
+        and Network classes.
+
+    """
+    try:
+        return IPv4Interface(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    try:
+        return IPv6Interface(address)
+    except (AddressValueError, NetmaskValueError):
+        pass
+
+    raise ValueError('%r does not appear to be an IPv4 or IPv6 interface' %
+                     address)
+
+
+def v4_int_to_packed(address):
+    """Represent an address as 4 packed bytes in network (big-endian) order.
+
+    Args:
+        address: An integer representation of an IPv4 IP address.
+
+    Returns:
+        The integer address packed as 4 bytes in network (big-endian) order.
+
+    Raises:
+        ValueError: If the integer is negative or too large to be an
+          IPv4 IP address.
+
+    """
+    try:
+        return _compat_to_bytes(address, 4, 'big')
+    except (struct.error, OverflowError):
+        raise ValueError("Address negative or too large for IPv4")
+
+
+def v6_int_to_packed(address):
+    """Represent an address as 16 packed bytes in network (big-endian) order.
+
+    Args:
+        address: An integer representation of an IPv6 IP address.
+
+    Returns:
+        The integer address packed as 16 bytes in network (big-endian) order.
+
+    """
+    try:
+        return _compat_to_bytes(address, 16, 'big')
+    except (struct.error, OverflowError):
+        raise ValueError("Address negative or too large for IPv6")
+
+
+def _split_optional_netmask(address):
+    """Helper to split the netmask and raise AddressValueError if needed"""
+    addr = _compat_str(address).split('/')
+    if len(addr) > 2:
+        raise AddressValueError("Only one '/' permitted in %r" % address)
+    return addr
+
+
+def _find_address_range(addresses):
+    """Find a sequence of sorted deduplicated IPv#Address.
+
+    Args:
+        addresses: a list of IPv#Address objects.
+
+    Yields:
+        A tuple containing the first and last IP addresses in the sequence.
+
+    """
+    it = iter(addresses)
+    first = last = next(it)
+    for ip in it:
+        if ip._ip != last._ip + 1:
+            yield first, last
+            first = ip
+        last = ip
+    yield first, last
+
+
+def _count_righthand_zero_bits(number, bits):
+    """Count the number of zero bits on the right hand side.
+
+    Args:
+        number: an integer.
+        bits: maximum number of bits to count.
+
+    Returns:
+        The number of zero bits on the right hand side of the number.
+
+    """
+    if number == 0:
+        return bits
+    return min(bits, _compat_bit_length(~number & (number - 1)))
+
+
+def summarize_address_range(first, last):
+    """Summarize a network range given the first and last IP addresses.
+
+    Example:
+        >>> list(summarize_address_range(IPv4Address('192.0.2.0'),
+        ...                              IPv4Address('192.0.2.130')))
+        ...                                #doctest: +NORMALIZE_WHITESPACE
+        [IPv4Network('192.0.2.0/25'), IPv4Network('192.0.2.128/31'),
+         IPv4Network('192.0.2.130/32')]
+
+    Args:
+        first: the first IPv4Address or IPv6Address in the range.
+        last: the last IPv4Address or IPv6Address in the range.
+
+    Returns:
+        An iterator of the summarized IPv(4|6) network objects.
+
+    Raise:
+        TypeError:
+            If the first and last objects are not IP addresses.
+            If the first and last objects are not the same version.
+        ValueError:
+            If the last object is not greater than the first.
+            If the version of the first address is not 4 or 6.
+
+    """
+    if (not (isinstance(first, _BaseAddress) and
+             isinstance(last, _BaseAddress))):
+        raise TypeError('first and last must be IP addresses, not networks')
+    if first.version != last.version:
+        raise TypeError("%s and %s are not of the same version" % (
+                        first, last))
+    if first > last:
+        raise ValueError('last IP address must be greater than first')
+
+    if first.version == 4:
+        ip = IPv4Network
+    elif first.version == 6:
+        ip = IPv6Network
+    else:
+        raise ValueError('unknown IP version')
+
+    ip_bits = first._max_prefixlen
+    first_int = first._ip
+    last_int = last._ip
+    while first_int <= last_int:
+        nbits = min(_count_righthand_zero_bits(first_int, ip_bits),
+                    _compat_bit_length(last_int - first_int + 1) - 1)
+        net = ip((first_int, ip_bits - nbits))
+        yield net
+        first_int += 1 << nbits
+        if first_int - 1 == ip._ALL_ONES:
+            break
+
+
+def _collapse_addresses_internal(addresses):
+    """Loops through the addresses, collapsing concurrent netblocks.
+
+    Example:
+
+        ip1 = IPv4Network('192.0.2.0/26')
+        ip2 = IPv4Network('192.0.2.64/26')
+        ip3 = IPv4Network('192.0.2.128/26')
+        ip4 = IPv4Network('192.0.2.192/26')
+
+        _collapse_addresses_internal([ip1, ip2, ip3, ip4]) ->
+          [IPv4Network('192.0.2.0/24')]
+
+        This shouldn't be called directly; it is called via
+          collapse_addresses([]).
+
+    Args:
+        addresses: A list of IPv4Network's or IPv6Network's
+
+    Returns:
+        A list of IPv4Network's or IPv6Network's depending on what we were
+        passed.
+
+    """
+    # First merge
+    to_merge = list(addresses)
+    subnets = {}
+    while to_merge:
+        net = to_merge.pop()
+        supernet = net.supernet()
+        existing = subnets.get(supernet)
+        if existing is None:
+            subnets[supernet] = net
+        elif existing != net:
+            # Merge consecutive subnets
+            del subnets[supernet]
+            to_merge.append(supernet)
+    # Then iterate over resulting networks, skipping subsumed subnets
+    last = None
+    for net in sorted(subnets.values()):
+        if last is not None:
+            # Since they are sorted,
+            # last.network_address <= net.network_address is a given.
+            if last.broadcast_address >= net.broadcast_address:
+                continue
+        yield net
+        last = net
+
+
+def collapse_addresses(addresses):
+    """Collapse a list of IP objects.
+
+    Example:
+        collapse_addresses([IPv4Network('192.0.2.0/25'),
+                            IPv4Network('192.0.2.128/25')]) ->
+                           [IPv4Network('192.0.2.0/24')]
+
+    Args:
+        addresses: An iterator of IPv4Network or IPv6Network objects.
+
+    Returns:
+        An iterator of the collapsed IPv(4|6)Network objects.
+
+    Raises:
+        TypeError: If passed a list of mixed version objects.
+
+    """
+    addrs = []
+    ips = []
+    nets = []
+
+    # split IP addresses and networks
+    for ip in addresses:
+        if isinstance(ip, _BaseAddress):
+            if ips and ips[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, ips[-1]))
+            ips.append(ip)
+        elif ip._prefixlen == ip._max_prefixlen:
+            if ips and ips[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, ips[-1]))
+            try:
+                ips.append(ip.ip)
+            except AttributeError:
+                ips.append(ip.network_address)
+        else:
+            if nets and nets[-1]._version != ip._version:
+                raise TypeError("%s and %s are not of the same version" % (
+                                ip, nets[-1]))
+            nets.append(ip)
+
+    # sort and dedup
+    ips = sorted(set(ips))
+
+    # find consecutive address ranges in the sorted sequence and summarize them
+    if ips:
+        for first, last in _find_address_range(ips):
+            addrs.extend(summarize_address_range(first, last))
+
+    return _collapse_addresses_internal(addrs + nets)
+
+
+def get_mixed_type_key(obj):
+    """Return a key suitable for sorting between networks and addresses.
+
+    Address and Network objects are not sortable by default; they're
+    fundamentally different so the expression
+
+        IPv4Address('192.0.2.0') <= IPv4Network('192.0.2.0/24')
+
+    doesn't make any sense.  There are some times however, where you may wish
+    to have ipaddress sort these for you anyway. If you need to do this, you
+    can use this function as the key= argument to sorted().
+
+    Args:
+      obj: either a Network or Address object.
+    Returns:
+      appropriate key.
+
+    """
+    if isinstance(obj, _BaseNetwork):
+        return obj._get_networks_key()
+    elif isinstance(obj, _BaseAddress):
+        return obj._get_address_key()
+    return NotImplemented
+
+
+class _IPAddressBase(_TotalOrderingMixin):
+
+    """The mother class."""
+
+    __slots__ = ()
+
+    @property
+    def exploded(self):
+        """Return the longhand version of the IP address as a string."""
+        return self._explode_shorthand_ip_string()
+
+    @property
+    def compressed(self):
+        """Return the shorthand version of the IP address as a string."""
+        return _compat_str(self)
+
+    @property
+    def reverse_pointer(self):
+        """The name of the reverse DNS pointer for the IP address, e.g.:
+            >>> ipaddress.ip_address("127.0.0.1").reverse_pointer
+            '1.0.0.127.in-addr.arpa'
+            >>> ipaddress.ip_address("2001:db8::1").reverse_pointer
+            '1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa'
+
+        """
+        return self._reverse_pointer()
+
+    @property
+    def version(self):
+        msg = '%200s has no version specified' % (type(self),)
+        raise NotImplementedError(msg)
+
+    def _check_int_address(self, address):
+        if address < 0:
+            msg = "%d (< 0) is not permitted as an IPv%d address"
+            raise AddressValueError(msg % (address, self._version))
+        if address > self._ALL_ONES:
+            msg = "%d (>= 2**%d) is not permitted as an IPv%d address"
+            raise AddressValueError(msg % (address, self._max_prefixlen,
+                                           self._version))
+
+    def _check_packed_address(self, address, expected_len):
+        address_len = len(address)
+        if address_len != expected_len:
+            msg = (
+                '%r (len %d != %d) is not permitted as an IPv%d address. '
+                'Did you pass in a bytes (str in Python 2) instead of'
+                ' a unicode object?'
+            )
+            raise AddressValueError(msg % (address, address_len,
+                                           expected_len, self._version))
+
+    @classmethod
+    def _ip_int_from_prefix(cls, prefixlen):
+        """Turn the prefix length into a bitwise netmask
+
+        Args:
+            prefixlen: An integer, the prefix length.
+
+        Returns:
+            An integer.
+
+        """
+        return cls._ALL_ONES ^ (cls._ALL_ONES >> prefixlen)
+
+    @classmethod
+    def _prefix_from_ip_int(cls, ip_int):
+        """Return prefix length from the bitwise netmask.
+
+        Args:
+            ip_int: An integer, the netmask in expanded bitwise format
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            ValueError: If the input intermingles zeroes & ones
+        """
+        trailing_zeroes = _count_righthand_zero_bits(ip_int,
+                                                     cls._max_prefixlen)
+        prefixlen = cls._max_prefixlen - trailing_zeroes
+        leading_ones = ip_int >> trailing_zeroes
+        all_ones = (1 << prefixlen) - 1
+        if leading_ones != all_ones:
+            byteslen = cls._max_prefixlen // 8
+            details = _compat_to_bytes(ip_int, byteslen, 'big')
+            msg = 'Netmask pattern %r mixes zeroes & ones'
+            raise ValueError(msg % details)
+        return prefixlen
+
+    @classmethod
+    def _report_invalid_netmask(cls, netmask_str):
+        msg = '%r is not a valid netmask' % netmask_str
+        raise NetmaskValueError(msg)
+
+    @classmethod
+    def _prefix_from_prefix_string(cls, prefixlen_str):
+        """Return prefix length from a numeric string
+
+        Args:
+            prefixlen_str: The string to be converted
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            NetmaskValueError: If the input is not a valid netmask
+        """
+        # int allows a leading +/- as well as surrounding whitespace,
+        # so we ensure that isn't the case
+        if not _BaseV4._DECIMAL_DIGITS.issuperset(prefixlen_str):
+            cls._report_invalid_netmask(prefixlen_str)
+        try:
+            prefixlen = int(prefixlen_str)
+        except ValueError:
+            cls._report_invalid_netmask(prefixlen_str)
+        if not (0 <= prefixlen <= cls._max_prefixlen):
+            cls._report_invalid_netmask(prefixlen_str)
+        return prefixlen
+
+    @classmethod
+    def _prefix_from_ip_string(cls, ip_str):
+        """Turn a netmask/hostmask string into a prefix length
+
+        Args:
+            ip_str: The netmask/hostmask to be converted
+
+        Returns:
+            An integer, the prefix length.
+
+        Raises:
+            NetmaskValueError: If the input is not a valid netmask/hostmask
+        """
+        # Parse the netmask/hostmask like an IP address.
+        try:
+            ip_int = cls._ip_int_from_string(ip_str)
+        except AddressValueError:
+            cls._report_invalid_netmask(ip_str)
+
+        # Try matching a netmask (this would be /1*0*/ as a bitwise regexp).
+        # Note that the two ambiguous cases (all-ones and all-zeroes) are
+        # treated as netmasks.
+        try:
+            return cls._prefix_from_ip_int(ip_int)
+        except ValueError:
+            pass
+
+        # Invert the bits, and try matching a /0+1+/ hostmask instead.
+        ip_int ^= cls._ALL_ONES
+        try:
+            return cls._prefix_from_ip_int(ip_int)
+        except ValueError:
+            cls._report_invalid_netmask(ip_str)
+
+    def __reduce__(self):
+        return self.__class__, (_compat_str(self),)
+
+
+class _BaseAddress(_IPAddressBase):
+
+    """A generic IP object.
+
+    This IP class contains the version independent methods which are
+    used by single IP addresses.
+    """
+
+    __slots__ = ()
+
+    def __int__(self):
+        return self._ip
+
+    def __eq__(self, other):
+        try:
+            return (self._ip == other._ip and
+                    self._version == other._version)
+        except AttributeError:
+            return NotImplemented
+
+    def __lt__(self, other):
+        if not isinstance(other, _IPAddressBase):
+            return NotImplemented
+        if not isinstance(other, _BaseAddress):
+            raise TypeError('%s and %s are not of the same type' % (
+                self, other))
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same version' % (
+                self, other))
+        if self._ip != other._ip:
+            return self._ip < other._ip
+        return False
+
+    # Shorthand for Integer addition and subtraction. This is not
+    # meant to ever support addition/subtraction of addresses.
+    def __add__(self, other):
+        if not isinstance(other, _compat_int_types):
+            return NotImplemented
+        return self.__class__(int(self) + other)
+
+    def __sub__(self, other):
+        if not isinstance(other, _compat_int_types):
+            return NotImplemented
+        return self.__class__(int(self) - other)
+
+    def __repr__(self):
+        return '%s(%r)' % (self.__class__.__name__, _compat_str(self))
+
+    def __str__(self):
+        return _compat_str(self._string_from_ip_int(self._ip))
+
+    def __hash__(self):
+        return hash(hex(int(self._ip)))
+
+    def _get_address_key(self):
+        return (self._version, self)
+
+    def __reduce__(self):
+        return self.__class__, (self._ip,)
+
+
+class _BaseNetwork(_IPAddressBase):
+
+    """A generic IP network object.
+
+    This IP class contains the version independent methods which are
+    used by networks.
+
+    """
+    def __init__(self, address):
+        self._cache = {}
+
+    def __repr__(self):
+        return '%s(%r)' % (self.__class__.__name__, _compat_str(self))
+
+    def __str__(self):
+        return '%s/%d' % (self.network_address, self.prefixlen)
+
+    def hosts(self):
+        """Generate Iterator over usable hosts in a network.
+
+        This is like __iter__ except it doesn't return the network
+        or broadcast addresses.
+
+        """
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network + 1, broadcast):
+            yield self._address_class(x)
+
+    def __iter__(self):
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network, broadcast + 1):
+            yield self._address_class(x)
+
+    def __getitem__(self, n):
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        if n >= 0:
+            if network + n > broadcast:
+                raise IndexError('address out of range')
+            return self._address_class(network + n)
+        else:
+            n += 1
+            if broadcast + n < network:
+                raise IndexError('address out of range')
+            return self._address_class(broadcast + n)
+
+    def __lt__(self, other):
+        if not isinstance(other, _IPAddressBase):
+            return NotImplemented
+        if not isinstance(other, _BaseNetwork):
+            raise TypeError('%s and %s are not of the same type' % (
+                            self, other))
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same version' % (
+                            self, other))
+        if self.network_address != other.network_address:
+            return self.network_address < other.network_address
+        if self.netmask != other.netmask:
+            return self.netmask < other.netmask
+        return False
+
+    def __eq__(self, other):
+        try:
+            return (self._version == other._version and
+                    self.network_address == other.network_address and
+                    int(self.netmask) == int(other.netmask))
+        except AttributeError:
+            return NotImplemented
+
+    def __hash__(self):
+        return hash(int(self.network_address) ^ int(self.netmask))
+
+    def __contains__(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if isinstance(other, _BaseNetwork):
+            return False
+        # dealing with another address
+        else:
+            # address
+            return (int(self.network_address) <= int(other._ip) <=
+                    int(self.broadcast_address))
+
+    def overlaps(self, other):
+        """Tell if self is partly contained in other."""
+        return self.network_address in other or (
+            self.broadcast_address in other or (
+                other.network_address in self or (
+                    other.broadcast_address in self)))
+
+    @property
+    def broadcast_address(self):
+        x = self._cache.get('broadcast_address')
+        if x is None:
+            x = self._address_class(int(self.network_address) |
+                                    int(self.hostmask))
+            self._cache['broadcast_address'] = x
+        return x
+
+    @property
+    def hostmask(self):
+        x = self._cache.get('hostmask')
+        if x is None:
+            x = self._address_class(int(self.netmask) ^ self._ALL_ONES)
+            self._cache['hostmask'] = x
+        return x
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%d' % (self.network_address, self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self.network_address, self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self.network_address, self.hostmask)
+
+    @property
+    def num_addresses(self):
+        """Number of hosts in the current subnet."""
+        return int(self.broadcast_address) - int(self.network_address) + 1
+
+    @property
+    def _address_class(self):
+        # Returning bare address objects (rather than interfaces) allows for
+        # more consistent behaviour across the network address, broadcast
+        # address and individual host addresses.
+        msg = '%200s has no associated address class' % (type(self),)
+        raise NotImplementedError(msg)
+
+    @property
+    def prefixlen(self):
+        return self._prefixlen
+
+    def address_exclude(self, other):
+        """Remove an address from a larger block.
+
+        For example:
+
+            addr1 = ip_network('192.0.2.0/28')
+            addr2 = ip_network('192.0.2.1/32')
+            list(addr1.address_exclude(addr2)) =
+                [IPv4Network('192.0.2.0/32'), IPv4Network('192.0.2.2/31'),
+                 IPv4Network('192.0.2.4/30'), IPv4Network('192.0.2.8/29')]
+
+        or IPv6:
+
+            addr1 = ip_network('2001:db8::1/32')
+            addr2 = ip_network('2001:db8::1/128')
+            list(addr1.address_exclude(addr2)) =
+                [ip_network('2001:db8::1/128'),
+                 ip_network('2001:db8::2/127'),
+                 ip_network('2001:db8::4/126'),
+                 ip_network('2001:db8::8/125'),
+                 ...
+                 ip_network('2001:db8:8000::/33')]
+
+        Args:
+            other: An IPv4Network or IPv6Network object of the same type.
+
+        Returns:
+            An iterator of the IPv(4|6)Network objects which is self
+            minus other.
+
+        Raises:
+            TypeError: If self and other are of differing address
+              versions, or if other is not a network object.
+            ValueError: If other is not completely contained by self.
+
+        """
+        if not self._version == other._version:
+            raise TypeError("%s and %s are not of the same version" % (
+                            self, other))
+
+        if not isinstance(other, _BaseNetwork):
+            raise TypeError("%s is not a network object" % other)
+
+        if not other.subnet_of(self):
+            raise ValueError('%s not contained in %s' % (other, self))
+        if other == self:
+            return
+
+        # Make sure we're comparing the network of other.
+        other = other.__class__('%s/%s' % (other.network_address,
+                                           other.prefixlen))
+
+        s1, s2 = self.subnets()
+        while s1 != other and s2 != other:
+            if other.subnet_of(s1):
+                yield s2
+                s1, s2 = s1.subnets()
+            elif other.subnet_of(s2):
+                yield s1
+                s1, s2 = s2.subnets()
+            else:
+                # If we got here, there's a bug somewhere.
+                raise AssertionError('Error performing exclusion: '
+                                     's1: %s s2: %s other: %s' %
+                                     (s1, s2, other))
+        if s1 == other:
+            yield s2
+        elif s2 == other:
+            yield s1
+        else:
+            # If we got here, there's a bug somewhere.
+            raise AssertionError('Error performing exclusion: '
+                                 's1: %s s2: %s other: %s' %
+                                 (s1, s2, other))
+
+    def compare_networks(self, other):
+        """Compare two IP objects.
+
+        This is only concerned about the comparison of the integer
+        representation of the network addresses.  This means that the
+        host bits aren't considered at all in this method.  If you want
+        to compare host bits, you can easily enough do a
+        'HostA._ip < HostB._ip'
+
+        Args:
+            other: An IP object.
+
+        Returns:
+            If the IP versions of self and other are the same, returns:
+
+            -1 if self < other:
+              eg: IPv4Network('192.0.2.0/25') < IPv4Network('192.0.2.128/25')
+              IPv6Network('2001:db8::1000/124') <
+                  IPv6Network('2001:db8::2000/124')
+            0 if self == other
+              eg: IPv4Network('192.0.2.0/24') == IPv4Network('192.0.2.0/24')
+              IPv6Network('2001:db8::1000/124') ==
+                  IPv6Network('2001:db8::1000/124')
+            1 if self > other
+              eg: IPv4Network('192.0.2.128/25') > IPv4Network('192.0.2.0/25')
+                  IPv6Network('2001:db8::2000/124') >
+                      IPv6Network('2001:db8::1000/124')
+
+          Raises:
+              TypeError if the IP versions are different.
+
+        """
+        # does this need to raise a ValueError?
+        if self._version != other._version:
+            raise TypeError('%s and %s are not of the same type' % (
+                            self, other))
+        # self._version == other._version below here:
+        if self.network_address < other.network_address:
+            return -1
+        if self.network_address > other.network_address:
+            return 1
+        # self.network_address == other.network_address below here:
+        if self.netmask < other.netmask:
+            return -1
+        if self.netmask > other.netmask:
+            return 1
+        return 0
+
+    def _get_networks_key(self):
+        """Network-only key function.
+
+        Returns an object that identifies this address' network and
+        netmask. This function is a suitable "key" argument for sorted()
+        and list.sort().
+
+        """
+        return (self._version, self.network_address, self.netmask)
+
+    def subnets(self, prefixlen_diff=1, new_prefix=None):
+        """The subnets which join to make the current subnet.
+
+        In the case that self contains only one IP
+        (self._prefixlen == 32 for IPv4 or self._prefixlen == 128
+        for IPv6), yield an iterator with just ourself.
+
+        Args:
+            prefixlen_diff: An integer, the amount the prefix length
+              should be increased by. This should not be set if
+              new_prefix is also set.
+            new_prefix: The desired new prefix length. This must be a
+              larger number (smaller prefix) than the existing prefix.
+              This should not be set if prefixlen_diff is also set.
+
+        Returns:
+            An iterator of IPv(4|6) objects.
+
+        Raises:
+            ValueError: The prefixlen_diff is too small or too large.
+                OR
+            prefixlen_diff and new_prefix are both set or new_prefix
+              is a smaller number than the current prefix (smaller
+              number means a larger network)
+
+        """
+        if self._prefixlen == self._max_prefixlen:
+            yield self
+            return
+
+        if new_prefix is not None:
+            if new_prefix < self._prefixlen:
+                raise ValueError('new prefix must be longer')
+            if prefixlen_diff != 1:
+                raise ValueError('cannot set prefixlen_diff and new_prefix')
+            prefixlen_diff = new_prefix - self._prefixlen
+
+        if prefixlen_diff < 0:
+            raise ValueError('prefix length diff must be > 0')
+        new_prefixlen = self._prefixlen + prefixlen_diff
+
+        if new_prefixlen > self._max_prefixlen:
+            raise ValueError(
+                'prefix length diff %d is invalid for netblock %s' % (
+                    new_prefixlen, self))
+
+        start = int(self.network_address)
+        end = int(self.broadcast_address) + 1
+        step = (int(self.hostmask) + 1) >> prefixlen_diff
+        for new_addr in _compat_range(start, end, step):
+            current = self.__class__((new_addr, new_prefixlen))
+            yield current
+
+    def supernet(self, prefixlen_diff=1, new_prefix=None):
+        """The supernet containing the current network.
+
+        Args:
+            prefixlen_diff: An integer, the amount the prefix length of
+              the network should be decreased by.  For example, given a
+              /24 network and a prefixlen_diff of 3, a supernet with a
+              /21 netmask is returned.
+
+        Returns:
+            An IPv4 network object.
+
+        Raises:
+            ValueError: If self.prefixlen - prefixlen_diff < 0. I.e., you have
+              a negative prefix length.
+                OR
+            If prefixlen_diff and new_prefix are both set or new_prefix is a
+              larger number than the current prefix (larger number means a
+              smaller network)
+
+        """
+        if self._prefixlen == 0:
+            return self
+
+        if new_prefix is not None:
+            if new_prefix > self._prefixlen:
+                raise ValueError('new prefix must be shorter')
+            if prefixlen_diff != 1:
+                raise ValueError('cannot set prefixlen_diff and new_prefix')
+            prefixlen_diff = self._prefixlen - new_prefix
+
+        new_prefixlen = self.prefixlen - prefixlen_diff
+        if new_prefixlen < 0:
+            raise ValueError(
+                'current prefixlen is %d, cannot have a prefixlen_diff of %d' %
+                (self.prefixlen, prefixlen_diff))
+        return self.__class__((
+            int(self.network_address) & (int(self.netmask) << prefixlen_diff),
+            new_prefixlen
+        ))
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is a multicast address.
+            See RFC 2373 2.7 for details.
+
+        """
+        return (self.network_address.is_multicast and
+                self.broadcast_address.is_multicast)
+
+    def subnet_of(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if (hasattr(other, 'network_address') and
+                hasattr(other, 'broadcast_address')):
+            return (other.network_address <= self.network_address and
+                    other.broadcast_address >= self.broadcast_address)
+        # dealing with another address
+        else:
+            raise TypeError('Unable to test subnet containment with element '
+                            'of type %s' % type(other))
+
+    def supernet_of(self, other):
+        # always false if one is v4 and the other is v6.
+        if self._version != other._version:
+            return False
+        # dealing with another network.
+        if (hasattr(other, 'network_address') and
+                hasattr(other, 'broadcast_address')):
+            return (other.network_address >= self.network_address and
+                    other.broadcast_address <= self.broadcast_address)
+        # dealing with another address
+        else:
+            raise TypeError('Unable to test subnet containment with element '
+                            'of type %s' % type(other))
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+        Returns:
+            A boolean, True if the address is within one of the
+            reserved IPv6 Network ranges.
+
+        """
+        return (self.network_address.is_reserved and
+                self.broadcast_address.is_reserved)
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 4291.
+
+        """
+        return (self.network_address.is_link_local and
+                self.broadcast_address.is_link_local)
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv4-special-registry or iana-ipv6-special-registry.
+
+        """
+        return (self.network_address.is_private and
+                self.broadcast_address.is_private)
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, True if the address is not reserved per
+            iana-ipv4-special-registry or iana-ipv6-special-registry.
+
+        """
+        return not self.is_private
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 2373 2.5.2.
+
+        """
+        return (self.network_address.is_unspecified and
+                self.broadcast_address.is_unspecified)
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback address as defined in
+            RFC 2373 2.5.3.
+
+        """
+        return (self.network_address.is_loopback and
+                self.broadcast_address.is_loopback)
+
+
+class _BaseV4(object):
+
+    """Base IPv4 object.
+
+    The following methods are used by IPv4 objects in both single IP
+    addresses and networks.
+
+    """
+
+    __slots__ = ()
+    _version = 4
+    # Equivalent to 255.255.255.255 or 32 bits of 1's.
+    _ALL_ONES = (2 ** IPV4LENGTH) - 1
+    _DECIMAL_DIGITS = frozenset('0123456789')
+
+    # the valid octets for host and netmasks. only useful for IPv4.
+    _valid_mask_octets = frozenset([255, 254, 252, 248, 240, 224, 192, 128, 0])
+
+    _max_prefixlen = IPV4LENGTH
+    # There are only a handful of valid v4 netmasks, so we cache them all
+    # when constructed (see _make_netmask()).
+    _netmask_cache = {}
+
+    def _explode_shorthand_ip_string(self):
+        return _compat_str(self)
+
+    @classmethod
+    def _make_netmask(cls, arg):
+        """Make a (netmask, prefix_len) tuple from the given argument.
+
+        Argument can be:
+        - an integer (the prefix length)
+        - a string representing the prefix length (e.g. "24")
+        - a string representing the prefix netmask (e.g. "255.255.255.0")
+        """
+        if arg not in cls._netmask_cache:
+            if isinstance(arg, _compat_int_types):
+                prefixlen = arg
+            else:
+                try:
+                    # Check for a netmask in prefix length form
+                    prefixlen = cls._prefix_from_prefix_string(arg)
+                except NetmaskValueError:
+                    # Check for a netmask or hostmask in dotted-quad form.
+                    # This may raise NetmaskValueError.
+                    prefixlen = cls._prefix_from_ip_string(arg)
+            netmask = IPv4Address(cls._ip_int_from_prefix(prefixlen))
+            cls._netmask_cache[arg] = netmask, prefixlen
+        return cls._netmask_cache[arg]
+
+    @classmethod
+    def _ip_int_from_string(cls, ip_str):
+        """Turn the given IP string into an integer for comparison.
+
+        Args:
+            ip_str: A string, the IP ip_str.
+
+        Returns:
+            The IP ip_str as an integer.
+
+        Raises:
+            AddressValueError: if ip_str isn't a valid IPv4 Address.
+
+        """
+        if not ip_str:
+            raise AddressValueError('Address cannot be empty')
+
+        octets = ip_str.split('.')
+        if len(octets) != 4:
+            raise AddressValueError("Expected 4 octets in %r" % ip_str)
+
+        try:
+            return _compat_int_from_byte_vals(
+                map(cls._parse_octet, octets), 'big')
+        except ValueError as exc:
+            raise AddressValueError("%s in %r" % (exc, ip_str))
+
+    @classmethod
+    def _parse_octet(cls, octet_str):
+        """Convert a decimal octet into an integer.
+
+        Args:
+            octet_str: A string, the number to parse.
+
+        Returns:
+            The octet as an integer.
+
+        Raises:
+            ValueError: if the octet isn't strictly a decimal from [0..255].
+
+        """
+        if not octet_str:
+            raise ValueError("Empty octet not permitted")
+        # Whitelist the characters, since int() allows a lot of bizarre stuff.
+        if not cls._DECIMAL_DIGITS.issuperset(octet_str):
+            msg = "Only decimal digits permitted in %r"
+            raise ValueError(msg % octet_str)
+        # We do the length check second, since the invalid character error
+        # is likely to be more informative for the user
+        if len(octet_str) > 3:
+            msg = "At most 3 characters permitted in %r"
+            raise ValueError(msg % octet_str)
+        # Convert to integer (we know digits are legal)
+        octet_int = int(octet_str, 10)
+        # Any octets that look like they *might* be written in octal,
+        # and which don't look exactly the same in both octal and
+        # decimal are rejected as ambiguous
+        if octet_int > 7 and octet_str[0] == '0':
+            msg = "Ambiguous (octal/decimal) value in %r not permitted"
+            raise ValueError(msg % octet_str)
+        if octet_int > 255:
+            raise ValueError("Octet %d (> 255) not permitted" % octet_int)
+        return octet_int
+
+    @classmethod
+    def _string_from_ip_int(cls, ip_int):
+        """Turns a 32-bit integer into dotted decimal notation.
+
+        Args:
+            ip_int: An integer, the IP address.
+
+        Returns:
+            The IP address as a string in dotted decimal notation.
+
+        """
+        return '.'.join(_compat_str(struct.unpack(b'!B', b)[0]
+                                    if isinstance(b, bytes)
+                                    else b)
+                        for b in _compat_to_bytes(ip_int, 4, 'big'))
+
+    def _is_hostmask(self, ip_str):
+        """Test if the IP string is a hostmask (rather than a netmask).
+
+        Args:
+            ip_str: A string, the potential hostmask.
+
+        Returns:
+            A boolean, True if the IP string is a hostmask.
+
+        """
+        bits = ip_str.split('.')
+        try:
+            parts = [x for x in map(int, bits) if x in self._valid_mask_octets]
+        except ValueError:
+            return False
+        if len(parts) != len(bits):
+            return False
+        if parts[0] < parts[-1]:
+            return True
+        return False
+
+    def _reverse_pointer(self):
+        """Return the reverse DNS pointer name for the IPv4 address.
+
+        This implements the method described in RFC1035 3.5.
+
+        """
+        reverse_octets = _compat_str(self).split('.')[::-1]
+        return '.'.join(reverse_octets) + '.in-addr.arpa'
+
+    @property
+    def max_prefixlen(self):
+        return self._max_prefixlen
+
+    @property
+    def version(self):
+        return self._version
+
+
+class IPv4Address(_BaseV4, _BaseAddress):
+
+    """Represent and manipulate single IPv4 Addresses."""
+
+    __slots__ = ('_ip', '__weakref__')
+
+    def __init__(self, address):
+
+        """
+        Args:
+            address: A string or integer representing the IP
+
+              Additionally, an integer can be passed, so
+              IPv4Address('192.0.2.1') == IPv4Address(3221225985).
+              or, more generally
+              IPv4Address(int(IPv4Address('192.0.2.1'))) ==
+                IPv4Address('192.0.2.1')
+
+        Raises:
+            AddressValueError: If ipaddress isn't a valid IPv4 address.
+
+        """
+        # Efficient constructor from integer.
+        if isinstance(address, _compat_int_types):
+            self._check_int_address(address)
+            self._ip = address
+            return
+
+        # Constructing from a packed address
+        if isinstance(address, bytes):
+            self._check_packed_address(address, 4)
+            bvs = _compat_bytes_to_byte_vals(address)
+            self._ip = _compat_int_from_byte_vals(bvs, 'big')
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP string.
+        addr_str = _compat_str(address)
+        if '/' in addr_str:
+            raise AddressValueError("Unexpected '/' in %r" % address)
+        self._ip = self._ip_int_from_string(addr_str)
+
+    @property
+    def packed(self):
+        """The binary representation of this address."""
+        return v4_int_to_packed(self._ip)
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+         Returns:
+             A boolean, True if the address is within the
+             reserved IPv4 Network range.
+
+        """
+        return self in self._constants._reserved_network
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv4-special-registry.
+
+        """
+        return any(self in net for net in self._constants._private_networks)
+
+    @property
+    def is_global(self):
+        return (
+            self not in self._constants._public_network and
+            not self.is_private)
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is multicast.
+            See RFC 3171 for details.
+
+        """
+        return self in self._constants._multicast_network
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 5735 3.
+
+        """
+        return self == self._constants._unspecified_address
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback per RFC 3330.
+
+        """
+        return self in self._constants._loopback_network
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is link-local per RFC 3927.
+
+        """
+        return self in self._constants._linklocal_network
+
+
+class IPv4Interface(IPv4Address):
+
+    def __init__(self, address):
+        if isinstance(address, (bytes, _compat_int_types)):
+            IPv4Address.__init__(self, address)
+            self.network = IPv4Network(self._ip)
+            self._prefixlen = self._max_prefixlen
+            return
+
+        if isinstance(address, tuple):
+            IPv4Address.__init__(self, address[0])
+            if len(address) > 1:
+                self._prefixlen = int(address[1])
+            else:
+                self._prefixlen = self._max_prefixlen
+
+            self.network = IPv4Network(address, strict=False)
+            self.netmask = self.network.netmask
+            self.hostmask = self.network.hostmask
+            return
+
+        addr = _split_optional_netmask(address)
+        IPv4Address.__init__(self, addr[0])
+
+        self.network = IPv4Network(address, strict=False)
+        self._prefixlen = self.network._prefixlen
+
+        self.netmask = self.network.netmask
+        self.hostmask = self.network.hostmask
+
+    def __str__(self):
+        return '%s/%d' % (self._string_from_ip_int(self._ip),
+                          self.network.prefixlen)
+
+    def __eq__(self, other):
+        address_equal = IPv4Address.__eq__(self, other)
+        if not address_equal or address_equal is NotImplemented:
+            return address_equal
+        try:
+            return self.network == other.network
+        except AttributeError:
+            # An interface with an associated network is NOT the
+            # same as an unassociated address. That's why the hash
+            # takes the extra info into account.
+            return False
+
+    def __lt__(self, other):
+        address_less = IPv4Address.__lt__(self, other)
+        if address_less is NotImplemented:
+            return NotImplemented
+        try:
+            return self.network < other.network
+        except AttributeError:
+            # We *do* allow addresses and interfaces to be sorted. The
+            # unassociated address is considered less than all interfaces.
+            return False
+
+    def __hash__(self):
+        return self._ip ^ self._prefixlen ^ int(self.network.network_address)
+
+    __reduce__ = _IPAddressBase.__reduce__
+
+    @property
+    def ip(self):
+        return IPv4Address(self._ip)
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.hostmask)
+
+
+class IPv4Network(_BaseV4, _BaseNetwork):
+
+    """This class represents and manipulates 32-bit IPv4 network + addresses..
+
+    Attributes: [examples for IPv4Network('192.0.2.0/27')]
+        .network_address: IPv4Address('192.0.2.0')
+        .hostmask: IPv4Address('0.0.0.31')
+        .broadcast_address: IPv4Address('192.0.2.32')
+        .netmask: IPv4Address('255.255.255.224')
+        .prefixlen: 27
+
+    """
+    # Class to use when creating address objects
+    _address_class = IPv4Address
+
+    def __init__(self, address, strict=True):
+
+        """Instantiate a new IPv4 network object.
+
+        Args:
+            address: A string or integer representing the IP [& network].
+              '192.0.2.0/24'
+              '192.0.2.0/255.255.255.0'
+              '192.0.0.2/0.0.0.255'
+              are all functionally the same in IPv4. Similarly,
+              '192.0.2.1'
+              '192.0.2.1/255.255.255.255'
+              '192.0.2.1/32'
+              are also functionally equivalent. That is to say, failing to
+              provide a subnetmask will create an object with a mask of /32.
+
+              If the mask (portion after the / in the argument) is given in
+              dotted quad form, it is treated as a netmask if it starts with a
+              non-zero field (e.g. /255.0.0.0 == /8) and as a hostmask if it
+              starts with a zero field (e.g. 0.255.255.255 == /8), with the
+              single exception of an all-zero mask which is treated as a
+              netmask == /0. If no mask is given, a default of /32 is used.
+
+              Additionally, an integer can be passed, so
+              IPv4Network('192.0.2.1') == IPv4Network(3221225985)
+              or, more generally
+              IPv4Interface(int(IPv4Interface('192.0.2.1'))) ==
+                IPv4Interface('192.0.2.1')
+
+        Raises:
+            AddressValueError: If ipaddress isn't a valid IPv4 address.
+            NetmaskValueError: If the netmask isn't valid for
+              an IPv4 address.
+            ValueError: If strict is True and a network address is not
+              supplied.
+
+        """
+        _BaseNetwork.__init__(self, address)
+
+        # Constructing from a packed address or integer
+        if isinstance(address, (_compat_int_types, bytes)):
+            self.network_address = IPv4Address(address)
+            self.netmask, self._prefixlen = self._make_netmask(
+                self._max_prefixlen)
+            # fixme: address/network test here.
+            return
+
+        if isinstance(address, tuple):
+            if len(address) > 1:
+                arg = address[1]
+            else:
+                # We weren't given an address[1]
+                arg = self._max_prefixlen
+            self.network_address = IPv4Address(address[0])
+            self.netmask, self._prefixlen = self._make_netmask(arg)
+            packed = int(self.network_address)
+            if packed & int(self.netmask) != packed:
+                if strict:
+                    raise ValueError('%s has host bits set' % self)
+                else:
+                    self.network_address = IPv4Address(packed &
+                                                       int(self.netmask))
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP prefix string.
+        addr = _split_optional_netmask(address)
+        self.network_address = IPv4Address(self._ip_int_from_string(addr[0]))
+
+        if len(addr) == 2:
+            arg = addr[1]
+        else:
+            arg = self._max_prefixlen
+        self.netmask, self._prefixlen = self._make_netmask(arg)
+
+        if strict:
+            if (IPv4Address(int(self.network_address) & int(self.netmask)) !=
+                    self.network_address):
+                raise ValueError('%s has host bits set' % self)
+        self.network_address = IPv4Address(int(self.network_address) &
+                                           int(self.netmask))
+
+        if self._prefixlen == (self._max_prefixlen - 1):
+            self.hosts = self.__iter__
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, True if the address is not reserved per
+            iana-ipv4-special-registry.
+
+        """
+        return (not (self.network_address in IPv4Network('100.64.0.0/10') and
+                self.broadcast_address in IPv4Network('100.64.0.0/10')) and
+                not self.is_private)
+
+
+class _IPv4Constants(object):
+
+    _linklocal_network = IPv4Network('169.254.0.0/16')
+
+    _loopback_network = IPv4Network('127.0.0.0/8')
+
+    _multicast_network = IPv4Network('224.0.0.0/4')
+
+    _public_network = IPv4Network('100.64.0.0/10')
+
+    _private_networks = [
+        IPv4Network('0.0.0.0/8'),
+        IPv4Network('10.0.0.0/8'),
+        IPv4Network('127.0.0.0/8'),
+        IPv4Network('169.254.0.0/16'),
+        IPv4Network('172.16.0.0/12'),
+        IPv4Network('192.0.0.0/29'),
+        IPv4Network('192.0.0.170/31'),
+        IPv4Network('192.0.2.0/24'),
+        IPv4Network('192.168.0.0/16'),
+        IPv4Network('198.18.0.0/15'),
+        IPv4Network('198.51.100.0/24'),
+        IPv4Network('203.0.113.0/24'),
+        IPv4Network('240.0.0.0/4'),
+        IPv4Network('255.255.255.255/32'),
+    ]
+
+    _reserved_network = IPv4Network('240.0.0.0/4')
+
+    _unspecified_address = IPv4Address('0.0.0.0')
+
+
+IPv4Address._constants = _IPv4Constants
+
+
+class _BaseV6(object):
+
+    """Base IPv6 object.
+
+    The following methods are used by IPv6 objects in both single IP
+    addresses and networks.
+
+    """
+
+    __slots__ = ()
+    _version = 6
+    _ALL_ONES = (2 ** IPV6LENGTH) - 1
+    _HEXTET_COUNT = 8
+    _HEX_DIGITS = frozenset('0123456789ABCDEFabcdef')
+    _max_prefixlen = IPV6LENGTH
+
+    # There are only a bunch of valid v6 netmasks, so we cache them all
+    # when constructed (see _make_netmask()).
+    _netmask_cache = {}
+
+    @classmethod
+    def _make_netmask(cls, arg):
+        """Make a (netmask, prefix_len) tuple from the given argument.
+
+        Argument can be:
+        - an integer (the prefix length)
+        - a string representing the prefix length (e.g. "24")
+        - a string representing the prefix netmask (e.g. "255.255.255.0")
+        """
+        if arg not in cls._netmask_cache:
+            if isinstance(arg, _compat_int_types):
+                prefixlen = arg
+            else:
+                prefixlen = cls._prefix_from_prefix_string(arg)
+            netmask = IPv6Address(cls._ip_int_from_prefix(prefixlen))
+            cls._netmask_cache[arg] = netmask, prefixlen
+        return cls._netmask_cache[arg]
+
+    @classmethod
+    def _ip_int_from_string(cls, ip_str):
+        """Turn an IPv6 ip_str into an integer.
+
+        Args:
+            ip_str: A string, the IPv6 ip_str.
+
+        Returns:
+            An int, the IPv6 address
+
+        Raises:
+            AddressValueError: if ip_str isn't a valid IPv6 Address.
+
+        """
+        if not ip_str:
+            raise AddressValueError('Address cannot be empty')
+
+        parts = ip_str.split(':')
+
+        # An IPv6 address needs at least 2 colons (3 parts).
+        _min_parts = 3
+        if len(parts) < _min_parts:
+            msg = "At least %d parts expected in %r" % (_min_parts, ip_str)
+            raise AddressValueError(msg)
+
+        # If the address has an IPv4-style suffix, convert it to hexadecimal.
+        if '.' in parts[-1]:
+            try:
+                ipv4_int = IPv4Address(parts.pop())._ip
+            except AddressValueError as exc:
+                raise AddressValueError("%s in %r" % (exc, ip_str))
+            parts.append('%x' % ((ipv4_int >> 16) & 0xFFFF))
+            parts.append('%x' % (ipv4_int & 0xFFFF))
+
+        # An IPv6 address can't have more than 8 colons (9 parts).
+        # The extra colon comes from using the "::" notation for a single
+        # leading or trailing zero part.
+        _max_parts = cls._HEXTET_COUNT + 1
+        if len(parts) > _max_parts:
+            msg = "At most %d colons permitted in %r" % (
+                _max_parts - 1, ip_str)
+            raise AddressValueError(msg)
+
+        # Disregarding the endpoints, find '::' with nothing in between.
+        # This indicates that a run of zeroes has been skipped.
+        skip_index = None
+        for i in _compat_range(1, len(parts) - 1):
+            if not parts[i]:
+                if skip_index is not None:
+                    # Can't have more than one '::'
+                    msg = "At most one '::' permitted in %r" % ip_str
+                    raise AddressValueError(msg)
+                skip_index = i
+
+        # parts_hi is the number of parts to copy from above/before the '::'
+        # parts_lo is the number of parts to copy from below/after the '::'
+        if skip_index is not None:
+            # If we found a '::', then check if it also covers the endpoints.
+            parts_hi = skip_index
+            parts_lo = len(parts) - skip_index - 1
+            if not parts[0]:
+                parts_hi -= 1
+                if parts_hi:
+                    msg = "Leading ':' only permitted as part of '::' in %r"
+                    raise AddressValueError(msg % ip_str)  # ^: requires ^::
+            if not parts[-1]:
+                parts_lo -= 1
+                if parts_lo:
+                    msg = "Trailing ':' only permitted as part of '::' in %r"
+                    raise AddressValueError(msg % ip_str)  # :$ requires ::$
+            parts_skipped = cls._HEXTET_COUNT - (parts_hi + parts_lo)
+            if parts_skipped < 1:
+                msg = "Expected at most %d other parts with '::' in %r"
+                raise AddressValueError(msg % (cls._HEXTET_COUNT - 1, ip_str))
+        else:
+            # Otherwise, allocate the entire address to parts_hi.  The
+            # endpoints could still be empty, but _parse_hextet() will check
+            # for that.
+            if len(parts) != cls._HEXTET_COUNT:
+                msg = "Exactly %d parts expected without '::' in %r"
+                raise AddressValueError(msg % (cls._HEXTET_COUNT, ip_str))
+            if not parts[0]:
+                msg = "Leading ':' only permitted as part of '::' in %r"
+                raise AddressValueError(msg % ip_str)  # ^: requires ^::
+            if not parts[-1]:
+                msg = "Trailing ':' only permitted as part of '::' in %r"
+                raise AddressValueError(msg % ip_str)  # :$ requires ::$
+            parts_hi = len(parts)
+            parts_lo = 0
+            parts_skipped = 0
+
+        try:
+            # Now, parse the hextets into a 128-bit integer.
+            ip_int = 0
+            for i in range(parts_hi):
+                ip_int <<= 16
+                ip_int |= cls._parse_hextet(parts[i])
+            ip_int <<= 16 * parts_skipped
+            for i in range(-parts_lo, 0):
+                ip_int <<= 16
+                ip_int |= cls._parse_hextet(parts[i])
+            return ip_int
+        except ValueError as exc:
+            raise AddressValueError("%s in %r" % (exc, ip_str))
+
+    @classmethod
+    def _parse_hextet(cls, hextet_str):
+        """Convert an IPv6 hextet string into an integer.
+
+        Args:
+            hextet_str: A string, the number to parse.
+
+        Returns:
+            The hextet as an integer.
+
+        Raises:
+            ValueError: if the input isn't strictly a hex number from
+              [0..FFFF].
+
+        """
+        # Whitelist the characters, since int() allows a lot of bizarre stuff.
+        if not cls._HEX_DIGITS.issuperset(hextet_str):
+            raise ValueError("Only hex digits permitted in %r" % hextet_str)
+        # We do the length check second, since the invalid character error
+        # is likely to be more informative for the user
+        if len(hextet_str) > 4:
+            msg = "At most 4 characters permitted in %r"
+            raise ValueError(msg % hextet_str)
+        # Length check means we can skip checking the integer value
+        return int(hextet_str, 16)
+
+    @classmethod
+    def _compress_hextets(cls, hextets):
+        """Compresses a list of hextets.
+
+        Compresses a list of strings, replacing the longest continuous
+        sequence of "0" in the list with "" and adding empty strings at
+        the beginning or at the end of the string such that subsequently
+        calling ":".join(hextets) will produce the compressed version of
+        the IPv6 address.
+
+        Args:
+            hextets: A list of strings, the hextets to compress.
+
+        Returns:
+            A list of strings.
+
+        """
+        best_doublecolon_start = -1
+        best_doublecolon_len = 0
+        doublecolon_start = -1
+        doublecolon_len = 0
+        for index, hextet in enumerate(hextets):
+            if hextet == '0':
+                doublecolon_len += 1
+                if doublecolon_start == -1:
+                    # Start of a sequence of zeros.
+                    doublecolon_start = index
+                if doublecolon_len > best_doublecolon_len:
+                    # This is the longest sequence of zeros so far.
+                    best_doublecolon_len = doublecolon_len
+                    best_doublecolon_start = doublecolon_start
+            else:
+                doublecolon_len = 0
+                doublecolon_start = -1
+
+        if best_doublecolon_len > 1:
+            best_doublecolon_end = (best_doublecolon_start +
+                                    best_doublecolon_len)
+            # For zeros at the end of the address.
+            if best_doublecolon_end == len(hextets):
+                hextets += ['']
+            hextets[best_doublecolon_start:best_doublecolon_end] = ['']
+            # For zeros at the beginning of the address.
+            if best_doublecolon_start == 0:
+                hextets = [''] + hextets
+
+        return hextets
+
+    @classmethod
+    def _string_from_ip_int(cls, ip_int=None):
+        """Turns a 128-bit integer into hexadecimal notation.
+
+        Args:
+            ip_int: An integer, the IP address.
+
+        Returns:
+            A string, the hexadecimal representation of the address.
+
+        Raises:
+            ValueError: The address is bigger than 128 bits of all ones.
+
+        """
+        if ip_int is None:
+            ip_int = int(cls._ip)
+
+        if ip_int > cls._ALL_ONES:
+            raise ValueError('IPv6 address is too large')
+
+        hex_str = '%032x' % ip_int
+        hextets = ['%x' % int(hex_str[x:x + 4], 16) for x in range(0, 32, 4)]
+
+        hextets = cls._compress_hextets(hextets)
+        return ':'.join(hextets)
+
+    def _explode_shorthand_ip_string(self):
+        """Expand a shortened IPv6 address.
+
+        Args:
+            ip_str: A string, the IPv6 address.
+
+        Returns:
+            A string, the expanded IPv6 address.
+
+        """
+        if isinstance(self, IPv6Network):
+            ip_str = _compat_str(self.network_address)
+        elif isinstance(self, IPv6Interface):
+            ip_str = _compat_str(self.ip)
+        else:
+            ip_str = _compat_str(self)
+
+        ip_int = self._ip_int_from_string(ip_str)
+        hex_str = '%032x' % ip_int
+        parts = [hex_str[x:x + 4] for x in range(0, 32, 4)]
+        if isinstance(self, (_BaseNetwork, IPv6Interface)):
+            return '%s/%d' % (':'.join(parts), self._prefixlen)
+        return ':'.join(parts)
+
+    def _reverse_pointer(self):
+        """Return the reverse DNS pointer name for the IPv6 address.
+
+        This implements the method described in RFC3596 2.5.
+
+        """
+        reverse_chars = self.exploded[::-1].replace(':', '')
+        return '.'.join(reverse_chars) + '.ip6.arpa'
+
+    @property
+    def max_prefixlen(self):
+        return self._max_prefixlen
+
+    @property
+    def version(self):
+        return self._version
+
+
+class IPv6Address(_BaseV6, _BaseAddress):
+
+    """Represent and manipulate single IPv6 Addresses."""
+
+    __slots__ = ('_ip', '__weakref__')
+
+    def __init__(self, address):
+        """Instantiate a new IPv6 address object.
+
+        Args:
+            address: A string or integer representing the IP
+
+              Additionally, an integer can be passed, so
+              IPv6Address('2001:db8::') ==
+                IPv6Address(42540766411282592856903984951653826560)
+              or, more generally
+              IPv6Address(int(IPv6Address('2001:db8::'))) ==
+                IPv6Address('2001:db8::')
+
+        Raises:
+            AddressValueError: If address isn't a valid IPv6 address.
+
+        """
+        # Efficient constructor from integer.
+        if isinstance(address, _compat_int_types):
+            self._check_int_address(address)
+            self._ip = address
+            return
+
+        # Constructing from a packed address
+        if isinstance(address, bytes):
+            self._check_packed_address(address, 16)
+            bvs = _compat_bytes_to_byte_vals(address)
+            self._ip = _compat_int_from_byte_vals(bvs, 'big')
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP string.
+        addr_str = _compat_str(address)
+        if '/' in addr_str:
+            raise AddressValueError("Unexpected '/' in %r" % address)
+        self._ip = self._ip_int_from_string(addr_str)
+
+    @property
+    def packed(self):
+        """The binary representation of this address."""
+        return v6_int_to_packed(self._ip)
+
+    @property
+    def is_multicast(self):
+        """Test if the address is reserved for multicast use.
+
+        Returns:
+            A boolean, True if the address is a multicast address.
+            See RFC 2373 2.7 for details.
+
+        """
+        return self in self._constants._multicast_network
+
+    @property
+    def is_reserved(self):
+        """Test if the address is otherwise IETF reserved.
+
+        Returns:
+            A boolean, True if the address is within one of the
+            reserved IPv6 Network ranges.
+
+        """
+        return any(self in x for x in self._constants._reserved_networks)
+
+    @property
+    def is_link_local(self):
+        """Test if the address is reserved for link-local.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 4291.
+
+        """
+        return self in self._constants._linklocal_network
+
+    @property
+    def is_site_local(self):
+        """Test if the address is reserved for site-local.
+
+        Note that the site-local address space has been deprecated by RFC 3879.
+        Use is_private to test if this address is in the space of unique local
+        addresses as defined by RFC 4193.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 3513 2.5.6.
+
+        """
+        return self in self._constants._sitelocal_network
+
+    @property
+    def is_private(self):
+        """Test if this address is allocated for private networks.
+
+        Returns:
+            A boolean, True if the address is reserved per
+            iana-ipv6-special-registry.
+
+        """
+        return any(self in net for net in self._constants._private_networks)
+
+    @property
+    def is_global(self):
+        """Test if this address is allocated for public networks.
+
+        Returns:
+            A boolean, true if the address is not reserved per
+            iana-ipv6-special-registry.
+
+        """
+        return not self.is_private
+
+    @property
+    def is_unspecified(self):
+        """Test if the address is unspecified.
+
+        Returns:
+            A boolean, True if this is the unspecified address as defined in
+            RFC 2373 2.5.2.
+
+        """
+        return self._ip == 0
+
+    @property
+    def is_loopback(self):
+        """Test if the address is a loopback address.
+
+        Returns:
+            A boolean, True if the address is a loopback address as defined in
+            RFC 2373 2.5.3.
+
+        """
+        return self._ip == 1
+
+    @property
+    def ipv4_mapped(self):
+        """Return the IPv4 mapped address.
+
+        Returns:
+            If the IPv6 address is a v4 mapped address, return the
+            IPv4 mapped address. Return None otherwise.
+
+        """
+        if (self._ip >> 32) != 0xFFFF:
+            return None
+        return IPv4Address(self._ip & 0xFFFFFFFF)
+
+    @property
+    def teredo(self):
+        """Tuple of embedded teredo IPs.
+
+        Returns:
+            Tuple of the (server, client) IPs or None if the address
+            doesn't appear to be a teredo address (doesn't start with
+            2001::/32)
+
+        """
+        if (self._ip >> 96) != 0x20010000:
+            return None
+        return (IPv4Address((self._ip >> 64) & 0xFFFFFFFF),
+                IPv4Address(~self._ip & 0xFFFFFFFF))
+
+    @property
+    def sixtofour(self):
+        """Return the IPv4 6to4 embedded address.
+
+        Returns:
+            The IPv4 6to4-embedded address if present or None if the
+            address doesn't appear to contain a 6to4 embedded address.
+
+        """
+        if (self._ip >> 112) != 0x2002:
+            return None
+        return IPv4Address((self._ip >> 80) & 0xFFFFFFFF)
+
+
+class IPv6Interface(IPv6Address):
+
+    def __init__(self, address):
+        if isinstance(address, (bytes, _compat_int_types)):
+            IPv6Address.__init__(self, address)
+            self.network = IPv6Network(self._ip)
+            self._prefixlen = self._max_prefixlen
+            return
+        if isinstance(address, tuple):
+            IPv6Address.__init__(self, address[0])
+            if len(address) > 1:
+                self._prefixlen = int(address[1])
+            else:
+                self._prefixlen = self._max_prefixlen
+            self.network = IPv6Network(address, strict=False)
+            self.netmask = self.network.netmask
+            self.hostmask = self.network.hostmask
+            return
+
+        addr = _split_optional_netmask(address)
+        IPv6Address.__init__(self, addr[0])
+        self.network = IPv6Network(address, strict=False)
+        self.netmask = self.network.netmask
+        self._prefixlen = self.network._prefixlen
+        self.hostmask = self.network.hostmask
+
+    def __str__(self):
+        return '%s/%d' % (self._string_from_ip_int(self._ip),
+                          self.network.prefixlen)
+
+    def __eq__(self, other):
+        address_equal = IPv6Address.__eq__(self, other)
+        if not address_equal or address_equal is NotImplemented:
+            return address_equal
+        try:
+            return self.network == other.network
+        except AttributeError:
+            # An interface with an associated network is NOT the
+            # same as an unassociated address. That's why the hash
+            # takes the extra info into account.
+            return False
+
+    def __lt__(self, other):
+        address_less = IPv6Address.__lt__(self, other)
+        if address_less is NotImplemented:
+            return NotImplemented
+        try:
+            return self.network < other.network
+        except AttributeError:
+            # We *do* allow addresses and interfaces to be sorted. The
+            # unassociated address is considered less than all interfaces.
+            return False
+
+    def __hash__(self):
+        return self._ip ^ self._prefixlen ^ int(self.network.network_address)
+
+    __reduce__ = _IPAddressBase.__reduce__
+
+    @property
+    def ip(self):
+        return IPv6Address(self._ip)
+
+    @property
+    def with_prefixlen(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self._prefixlen)
+
+    @property
+    def with_netmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.netmask)
+
+    @property
+    def with_hostmask(self):
+        return '%s/%s' % (self._string_from_ip_int(self._ip),
+                          self.hostmask)
+
+    @property
+    def is_unspecified(self):
+        return self._ip == 0 and self.network.is_unspecified
+
+    @property
+    def is_loopback(self):
+        return self._ip == 1 and self.network.is_loopback
+
+
+class IPv6Network(_BaseV6, _BaseNetwork):
+
+    """This class represents and manipulates 128-bit IPv6 networks.
+
+    Attributes: [examples for IPv6('2001:db8::1000/124')]
+        .network_address: IPv6Address('2001:db8::1000')
+        .hostmask: IPv6Address('::f')
+        .broadcast_address: IPv6Address('2001:db8::100f')
+        .netmask: IPv6Address('ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0')
+        .prefixlen: 124
+
+    """
+
+    # Class to use when creating address objects
+    _address_class = IPv6Address
+
+    def __init__(self, address, strict=True):
+        """Instantiate a new IPv6 Network object.
+
+        Args:
+            address: A string or integer representing the IPv6 network or the
+              IP and prefix/netmask.
+              '2001:db8::/128'
+              '2001:db8:0000:0000:0000:0000:0000:0000/128'
+              '2001:db8::'
+              are all functionally the same in IPv6.  That is to say,
+              failing to provide a subnetmask will create an object with
+              a mask of /128.
+
+              Additionally, an integer can be passed, so
+              IPv6Network('2001:db8::') ==
+                IPv6Network(42540766411282592856903984951653826560)
+              or, more generally
+              IPv6Network(int(IPv6Network('2001:db8::'))) ==
+                IPv6Network('2001:db8::')
+
+            strict: A boolean. If true, ensure that we have been passed
+              A true network address, eg, 2001:db8::1000/124 and not an
+              IP address on a network, eg, 2001:db8::1/124.
+
+        Raises:
+            AddressValueError: If address isn't a valid IPv6 address.
+            NetmaskValueError: If the netmask isn't valid for
+              an IPv6 address.
+            ValueError: If strict was True and a network address was not
+              supplied.
+
+        """
+        _BaseNetwork.__init__(self, address)
+
+        # Efficient constructor from integer or packed address
+        if isinstance(address, (bytes, _compat_int_types)):
+            self.network_address = IPv6Address(address)
+            self.netmask, self._prefixlen = self._make_netmask(
+                self._max_prefixlen)
+            return
+
+        if isinstance(address, tuple):
+            if len(address) > 1:
+                arg = address[1]
+            else:
+                arg = self._max_prefixlen
+            self.netmask, self._prefixlen = self._make_netmask(arg)
+            self.network_address = IPv6Address(address[0])
+            packed = int(self.network_address)
+            if packed & int(self.netmask) != packed:
+                if strict:
+                    raise ValueError('%s has host bits set' % self)
+                else:
+                    self.network_address = IPv6Address(packed &
+                                                       int(self.netmask))
+            return
+
+        # Assume input argument to be string or any object representation
+        # which converts into a formatted IP prefix string.
+        addr = _split_optional_netmask(address)
+
+        self.network_address = IPv6Address(self._ip_int_from_string(addr[0]))
+
+        if len(addr) == 2:
+            arg = addr[1]
+        else:
+            arg = self._max_prefixlen
+        self.netmask, self._prefixlen = self._make_netmask(arg)
+
+        if strict:
+            if (IPv6Address(int(self.network_address) & int(self.netmask)) !=
+                    self.network_address):
+                raise ValueError('%s has host bits set' % self)
+        self.network_address = IPv6Address(int(self.network_address) &
+                                           int(self.netmask))
+
+        if self._prefixlen == (self._max_prefixlen - 1):
+            self.hosts = self.__iter__
+
+    def hosts(self):
+        """Generate Iterator over usable hosts in a network.
+
+          This is like __iter__ except it doesn't return the
+          Subnet-Router anycast address.
+
+        """
+        network = int(self.network_address)
+        broadcast = int(self.broadcast_address)
+        for x in _compat_range(network + 1, broadcast + 1):
+            yield self._address_class(x)
+
+    @property
+    def is_site_local(self):
+        """Test if the address is reserved for site-local.
+
+        Note that the site-local address space has been deprecated by RFC 3879.
+        Use is_private to test if this address is in the space of unique local
+        addresses as defined by RFC 4193.
+
+        Returns:
+            A boolean, True if the address is reserved per RFC 3513 2.5.6.
+
+        """
+        return (self.network_address.is_site_local and
+                self.broadcast_address.is_site_local)
+
+
+class _IPv6Constants(object):
+
+    _linklocal_network = IPv6Network('fe80::/10')
+
+    _multicast_network = IPv6Network('ff00::/8')
+
+    _private_networks = [
+        IPv6Network('::1/128'),
+        IPv6Network('::/128'),
+        IPv6Network('::ffff:0:0/96'),
+        IPv6Network('100::/64'),
+        IPv6Network('2001::/23'),
+        IPv6Network('2001:2::/48'),
+        IPv6Network('2001:db8::/32'),
+        IPv6Network('2001:10::/28'),
+        IPv6Network('fc00::/7'),
+        IPv6Network('fe80::/10'),
+    ]
+
+    _reserved_networks = [
+        IPv6Network('::/8'), IPv6Network('100::/8'),
+        IPv6Network('200::/7'), IPv6Network('400::/6'),
+        IPv6Network('800::/5'), IPv6Network('1000::/4'),
+        IPv6Network('4000::/3'), IPv6Network('6000::/3'),
+        IPv6Network('8000::/3'), IPv6Network('A000::/3'),
+        IPv6Network('C000::/3'), IPv6Network('E000::/4'),
+        IPv6Network('F000::/5'), IPv6Network('F800::/6'),
+        IPv6Network('FE00::/9'),
+    ]
+
+    _sitelocal_network = IPv6Network('fec0::/10')
+
+
+IPv6Address._constants = _IPv6Constants
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py
new file mode 100644
index 0000000..a6f44a5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/__init__.py
@@ -0,0 +1,347 @@
+# -*- coding: utf-8 -*-
+
+"""
+lockfile.py - Platform-independent advisory file locks.
+
+Requires Python 2.5 unless you apply 2.4.diff
+Locking is done on a per-thread basis instead of a per-process basis.
+
+Usage:
+
+>>> lock = LockFile('somefile')
+>>> try:
+...     lock.acquire()
+... except AlreadyLocked:
+...     print 'somefile', 'is locked already.'
+... except LockFailed:
+...     print 'somefile', 'can\\'t be locked.'
+... else:
+...     print 'got lock'
+got lock
+>>> print lock.is_locked()
+True
+>>> lock.release()
+
+>>> lock = LockFile('somefile')
+>>> print lock.is_locked()
+False
+>>> with lock:
+...    print lock.is_locked()
+True
+>>> print lock.is_locked()
+False
+
+>>> lock = LockFile('somefile')
+>>> # It is okay to lock twice from the same thread...
+>>> with lock:
+...     lock.acquire()
+...
+>>> # Though no counter is kept, so you can't unlock multiple times...
+>>> print lock.is_locked()
+False
+
+Exceptions:
+
+    Error - base class for other exceptions
+        LockError - base class for all locking exceptions
+            AlreadyLocked - Another thread or process already holds the lock
+            LockFailed - Lock failed for some other reason
+        UnlockError - base class for all unlocking exceptions
+            AlreadyUnlocked - File was not locked.
+            NotMyLock - File was locked but not by the current thread/process
+"""
+
+from __future__ import absolute_import
+
+import functools
+import os
+import socket
+import threading
+import warnings
+
+# Work with PEP8 and non-PEP8 versions of threading module.
+if not hasattr(threading, "current_thread"):
+    threading.current_thread = threading.currentThread
+if not hasattr(threading.Thread, "get_name"):
+    threading.Thread.get_name = threading.Thread.getName
+
+__all__ = ['Error', 'LockError', 'LockTimeout', 'AlreadyLocked',
+           'LockFailed', 'UnlockError', 'NotLocked', 'NotMyLock',
+           'LinkFileLock', 'MkdirFileLock', 'SQLiteFileLock',
+           'LockBase', 'locked']
+
+
+class Error(Exception):
+    """
+    Base class for other exceptions.
+
+    >>> try:
+    ...   raise Error
+    ... except Exception:
+    ...   pass
+    """
+    pass
+
+
+class LockError(Error):
+    """
+    Base class for error arising from attempts to acquire the lock.
+
+    >>> try:
+    ...   raise LockError
+    ... except Error:
+    ...   pass
+    """
+    pass
+
+
+class LockTimeout(LockError):
+    """Raised when lock creation fails within a user-defined period of time.
+
+    >>> try:
+    ...   raise LockTimeout
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class AlreadyLocked(LockError):
+    """Some other thread/process is locking the file.
+
+    >>> try:
+    ...   raise AlreadyLocked
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class LockFailed(LockError):
+    """Lock file creation failed for some other reason.
+
+    >>> try:
+    ...   raise LockFailed
+    ... except LockError:
+    ...   pass
+    """
+    pass
+
+
+class UnlockError(Error):
+    """
+    Base class for errors arising from attempts to release the lock.
+
+    >>> try:
+    ...   raise UnlockError
+    ... except Error:
+    ...   pass
+    """
+    pass
+
+
+class NotLocked(UnlockError):
+    """Raised when an attempt is made to unlock an unlocked file.
+
+    >>> try:
+    ...   raise NotLocked
+    ... except UnlockError:
+    ...   pass
+    """
+    pass
+
+
+class NotMyLock(UnlockError):
+    """Raised when an attempt is made to unlock a file someone else locked.
+
+    >>> try:
+    ...   raise NotMyLock
+    ... except UnlockError:
+    ...   pass
+    """
+    pass
+
+
+class _SharedBase(object):
+    def __init__(self, path):
+        self.path = path
+
+    def acquire(self, timeout=None):
+        """
+        Acquire the lock.
+
+        * If timeout is omitted (or None), wait forever trying to lock the
+          file.
+
+        * If timeout > 0, try to acquire the lock for that many seconds.  If
+          the lock period expires and the file is still locked, raise
+          LockTimeout.
+
+        * If timeout <= 0, raise AlreadyLocked immediately if the file is
+          already locked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def release(self):
+        """
+        Release the lock.
+
+        If the file is not locked, raise NotLocked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def __enter__(self):
+        """
+        Context manager support.
+        """
+        self.acquire()
+        return self
+
+    def __exit__(self, *_exc):
+        """
+        Context manager support.
+        """
+        self.release()
+
+    def __repr__(self):
+        return "<%s: %r>" % (self.__class__.__name__, self.path)
+
+
+class LockBase(_SharedBase):
+    """Base class for platform-specific lock classes."""
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = LockBase('somefile')
+        >>> lock = LockBase('somefile', threaded=False)
+        """
+        super(LockBase, self).__init__(path)
+        self.lock_file = os.path.abspath(path) + ".lock"
+        self.hostname = socket.gethostname()
+        self.pid = os.getpid()
+        if threaded:
+            t = threading.current_thread()
+            # Thread objects in Python 2.4 and earlier do not have ident
+            # attrs.  Worm around that.
+            ident = getattr(t, "ident", hash(t))
+            self.tname = "-%x" % (ident & 0xffffffff)
+        else:
+            self.tname = ""
+        dirname = os.path.dirname(self.lock_file)
+
+        # unique name is mostly about the current process, but must
+        # also contain the path -- otherwise, two adjacent locked
+        # files conflict (one file gets locked, creating lock-file and
+        # unique file, the other one gets locked, creating lock-file
+        # and overwriting the already existing lock-file, then one
+        # gets unlocked, deleting both lock-file and unique file,
+        # finally the last lock errors out upon releasing.
+        self.unique_name = os.path.join(dirname,
+                                        "%s%s.%s%s" % (self.hostname,
+                                                       self.tname,
+                                                       self.pid,
+                                                       hash(self.path)))
+        self.timeout = timeout
+
+    def is_locked(self):
+        """
+        Tell whether or not the file is locked.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def i_am_locking(self):
+        """
+        Return True if this object is locking the file.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def break_lock(self):
+        """
+        Remove a lock.  Useful if a locking thread failed to unlock.
+        """
+        raise NotImplemented("implement in subclass")
+
+    def __repr__(self):
+        return "<%s: %r -- %r>" % (self.__class__.__name__, self.unique_name,
+                                   self.path)
+
+
+def _fl_helper(cls, mod, *args, **kwds):
+    warnings.warn("Import from %s module instead of lockfile package" % mod,
+                  DeprecationWarning, stacklevel=2)
+    # This is a bit funky, but it's only for awhile.  The way the unit tests
+    # are constructed this function winds up as an unbound method, so it
+    # actually takes three args, not two.  We want to toss out self.
+    if not isinstance(args[0], str):
+        # We are testing, avoid the first arg
+        args = args[1:]
+    if len(args) == 1 and not kwds:
+        kwds["threaded"] = True
+    return cls(*args, **kwds)
+
+
+def LinkFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import LinkLockFile from the
+    lockfile.linklockfile module.
+    """
+    from . import linklockfile
+    return _fl_helper(linklockfile.LinkLockFile, "lockfile.linklockfile",
+                      *args, **kwds)
+
+
+def MkdirFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import MkdirLockFile from the
+    lockfile.mkdirlockfile module.
+    """
+    from . import mkdirlockfile
+    return _fl_helper(mkdirlockfile.MkdirLockFile, "lockfile.mkdirlockfile",
+                      *args, **kwds)
+
+
+def SQLiteFileLock(*args, **kwds):
+    """Factory function provided for backwards compatibility.
+
+    Do not use in new code.  Instead, import SQLiteLockFile from the
+    lockfile.mkdirlockfile module.
+    """
+    from . import sqlitelockfile
+    return _fl_helper(sqlitelockfile.SQLiteLockFile, "lockfile.sqlitelockfile",
+                      *args, **kwds)
+
+
+def locked(path, timeout=None):
+    """Decorator which enables locks for decorated function.
+
+    Arguments:
+     - path: path for lockfile.
+     - timeout (optional): Timeout for acquiring lock.
+
+     Usage:
+         @locked('/var/run/myname', timeout=0)
+         def myname(...):
+             ...
+    """
+    def decor(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            lock = FileLock(path, timeout=timeout)
+            lock.acquire()
+            try:
+                return func(*args, **kwargs)
+            finally:
+                lock.release()
+        return wrapper
+    return decor
+
+
+if hasattr(os, "link"):
+    from . import linklockfile as _llf
+    LockFile = _llf.LinkLockFile
+else:
+    from . import mkdirlockfile as _mlf
+    LockFile = _mlf.MkdirLockFile
+
+FileLock = LockFile
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py
new file mode 100644
index 0000000..2ca9be0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/linklockfile.py
@@ -0,0 +1,73 @@
+from __future__ import absolute_import
+
+import time
+import os
+
+from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class LinkLockFile(LockBase):
+    """Lock access to a file using atomic property of link(2).
+
+    >>> lock = LinkLockFile('somefile')
+    >>> lock = LinkLockFile('somefile', threaded=False)
+    """
+
+    def acquire(self, timeout=None):
+        try:
+            open(self.unique_name, "wb").close()
+        except IOError:
+            raise LockFailed("failed to create %s" % self.unique_name)
+
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            # Try and create a hard link to it.
+            try:
+                os.link(self.unique_name, self.lock_file)
+            except OSError:
+                # Link creation failed.  Maybe we've double-locked?
+                nlinks = os.stat(self.unique_name).st_nlink
+                if nlinks == 2:
+                    # The original link plus the one I created == 2.  We're
+                    # good to go.
+                    return
+                else:
+                    # Otherwise the lock creation failed.
+                    if timeout is not None and time.time() > end_time:
+                        os.unlink(self.unique_name)
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout is not None and timeout / 10 or 0.1)
+            else:
+                # Link creation succeeded.  We're good to go.
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not os.path.exists(self.unique_name):
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.unique_name)
+        os.unlink(self.lock_file)
+
+    def is_locked(self):
+        return os.path.exists(self.lock_file)
+
+    def i_am_locking(self):
+        return (self.is_locked() and
+                os.path.exists(self.unique_name) and
+                os.stat(self.unique_name).st_nlink == 2)
+
+    def break_lock(self):
+        if os.path.exists(self.lock_file):
+            os.unlink(self.lock_file)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py
new file mode 100644
index 0000000..05a8c96
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/mkdirlockfile.py
@@ -0,0 +1,84 @@
+from __future__ import absolute_import, division
+
+import time
+import os
+import sys
+import errno
+
+from . import (LockBase, LockFailed, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class MkdirLockFile(LockBase):
+    """Lock file by creating a directory."""
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = MkdirLockFile('somefile')
+        >>> lock = MkdirLockFile('somefile', threaded=False)
+        """
+        LockBase.__init__(self, path, threaded, timeout)
+        # Lock file itself is a directory.  Place the unique file name into
+        # it.
+        self.unique_name = os.path.join(self.lock_file,
+                                        "%s.%s%s" % (self.hostname,
+                                                     self.tname,
+                                                     self.pid))
+
+    def acquire(self, timeout=None):
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        if timeout is None:
+            wait = 0.1
+        else:
+            wait = max(0, timeout / 10)
+
+        while True:
+            try:
+                os.mkdir(self.lock_file)
+            except OSError:
+                err = sys.exc_info()[1]
+                if err.errno == errno.EEXIST:
+                    # Already locked.
+                    if os.path.exists(self.unique_name):
+                        # Already locked by me.
+                        return
+                    if timeout is not None and time.time() > end_time:
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            # Someone else has the lock.
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(wait)
+                else:
+                    # Couldn't create the lock for some other reason
+                    raise LockFailed("failed to create %s" % self.lock_file)
+            else:
+                open(self.unique_name, "wb").close()
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not os.path.exists(self.unique_name):
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.unique_name)
+        os.rmdir(self.lock_file)
+
+    def is_locked(self):
+        return os.path.exists(self.lock_file)
+
+    def i_am_locking(self):
+        return (self.is_locked() and
+                os.path.exists(self.unique_name))
+
+    def break_lock(self):
+        if os.path.exists(self.lock_file):
+            for name in os.listdir(self.lock_file):
+                os.unlink(os.path.join(self.lock_file, name))
+            os.rmdir(self.lock_file)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py
new file mode 100644
index 0000000..069e85b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/pidlockfile.py
@@ -0,0 +1,190 @@
+# -*- coding: utf-8 -*-
+
+# pidlockfile.py
+#
+# Copyright © 2008–2009 Ben Finney <ben+python@benfinney.id.au>
+#
+# This is free software: you may copy, modify, and/or distribute this work
+# under the terms of the Python Software Foundation License, version 2 or
+# later as published by the Python Software Foundation.
+# No warranty expressed or implied. See the file LICENSE.PSF-2 for details.
+
+""" Lockfile behaviour implemented via Unix PID files.
+    """
+
+from __future__ import absolute_import
+
+import errno
+import os
+import time
+
+from . import (LockBase, AlreadyLocked, LockFailed, NotLocked, NotMyLock,
+               LockTimeout)
+
+
+class PIDLockFile(LockBase):
+    """ Lockfile implemented as a Unix PID file.
+
+    The lock file is a normal file named by the attribute `path`.
+    A lock's PID file contains a single line of text, containing
+    the process ID (PID) of the process that acquired the lock.
+
+    >>> lock = PIDLockFile('somefile')
+    >>> lock = PIDLockFile('somefile')
+    """
+
+    def __init__(self, path, threaded=False, timeout=None):
+        # pid lockfiles don't support threaded operation, so always force
+        # False as the threaded arg.
+        LockBase.__init__(self, path, False, timeout)
+        self.unique_name = self.path
+
+    def read_pid(self):
+        """ Get the PID from the lock file.
+            """
+        return read_pid_from_pidfile(self.path)
+
+    def is_locked(self):
+        """ Test if the lock is currently held.
+
+            The lock is held if the PID file for this lock exists.
+
+            """
+        return os.path.exists(self.path)
+
+    def i_am_locking(self):
+        """ Test if the lock is held by the current process.
+
+        Returns ``True`` if the current process ID matches the
+        number stored in the PID file.
+        """
+        return self.is_locked() and os.getpid() == self.read_pid()
+
+    def acquire(self, timeout=None):
+        """ Acquire the lock.
+
+        Creates the PID file for this lock, or raises an error if
+        the lock could not be acquired.
+        """
+
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            try:
+                write_pid_to_pidfile(self.path)
+            except OSError as exc:
+                if exc.errno == errno.EEXIST:
+                    # The lock creation failed.  Maybe sleep a bit.
+                    if time.time() > end_time:
+                        if timeout is not None and timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout is not None and timeout / 10 or 0.1)
+                else:
+                    raise LockFailed("failed to create %s" % self.path)
+            else:
+                return
+
+    def release(self):
+        """ Release the lock.
+
+            Removes the PID file to release the lock, or raises an
+            error if the current process does not hold the lock.
+
+            """
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        if not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        remove_existing_pidfile(self.path)
+
+    def break_lock(self):
+        """ Break an existing lock.
+
+            Removes the PID file if it already exists, otherwise does
+            nothing.
+
+            """
+        remove_existing_pidfile(self.path)
+
+
+def read_pid_from_pidfile(pidfile_path):
+    """ Read the PID recorded in the named PID file.
+
+        Read and return the numeric PID recorded as text in the named
+        PID file. If the PID file cannot be read, or if the content is
+        not a valid PID, return ``None``.
+
+        """
+    pid = None
+    try:
+        pidfile = open(pidfile_path, 'r')
+    except IOError:
+        pass
+    else:
+        # According to the FHS 2.3 section on PID files in /var/run:
+        #
+        #   The file must consist of the process identifier in
+        #   ASCII-encoded decimal, followed by a newline character.
+        #
+        #   Programs that read PID files should be somewhat flexible
+        #   in what they accept; i.e., they should ignore extra
+        #   whitespace, leading zeroes, absence of the trailing
+        #   newline, or additional lines in the PID file.
+
+        line = pidfile.readline().strip()
+        try:
+            pid = int(line)
+        except ValueError:
+            pass
+        pidfile.close()
+
+    return pid
+
+
+def write_pid_to_pidfile(pidfile_path):
+    """ Write the PID in the named PID file.
+
+        Get the numeric process ID (“PID”) of the current process
+        and write it to the named file as a line of text.
+
+        """
+    open_flags = (os.O_CREAT | os.O_EXCL | os.O_WRONLY)
+    open_mode = 0o644
+    pidfile_fd = os.open(pidfile_path, open_flags, open_mode)
+    pidfile = os.fdopen(pidfile_fd, 'w')
+
+    # According to the FHS 2.3 section on PID files in /var/run:
+    #
+    #   The file must consist of the process identifier in
+    #   ASCII-encoded decimal, followed by a newline character. For
+    #   example, if crond was process number 25, /var/run/crond.pid
+    #   would contain three characters: two, five, and newline.
+
+    pid = os.getpid()
+    pidfile.write("%s\n" % pid)
+    pidfile.close()
+
+
+def remove_existing_pidfile(pidfile_path):
+    """ Remove the named PID file if it exists.
+
+        Removing a PID file that doesn't already exist puts us in the
+        desired state, so we ignore the condition if the file does not
+        exist.
+
+        """
+    try:
+        os.remove(pidfile_path)
+    except OSError as exc:
+        if exc.errno == errno.ENOENT:
+            pass
+        else:
+            raise
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py
new file mode 100644
index 0000000..f997e24
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/sqlitelockfile.py
@@ -0,0 +1,156 @@
+from __future__ import absolute_import, division
+
+import time
+import os
+
+try:
+    unicode
+except NameError:
+    unicode = str
+
+from . import LockBase, NotLocked, NotMyLock, LockTimeout, AlreadyLocked
+
+
+class SQLiteLockFile(LockBase):
+    "Demonstrate SQL-based locking."
+
+    testdb = None
+
+    def __init__(self, path, threaded=True, timeout=None):
+        """
+        >>> lock = SQLiteLockFile('somefile')
+        >>> lock = SQLiteLockFile('somefile', threaded=False)
+        """
+        LockBase.__init__(self, path, threaded, timeout)
+        self.lock_file = unicode(self.lock_file)
+        self.unique_name = unicode(self.unique_name)
+
+        if SQLiteLockFile.testdb is None:
+            import tempfile
+            _fd, testdb = tempfile.mkstemp()
+            os.close(_fd)
+            os.unlink(testdb)
+            del _fd, tempfile
+            SQLiteLockFile.testdb = testdb
+
+        import sqlite3
+        self.connection = sqlite3.connect(SQLiteLockFile.testdb)
+
+        c = self.connection.cursor()
+        try:
+            c.execute("create table locks"
+                      "("
+                      "   lock_file varchar(32),"
+                      "   unique_name varchar(32)"
+                      ")")
+        except sqlite3.OperationalError:
+            pass
+        else:
+            self.connection.commit()
+            import atexit
+            atexit.register(os.unlink, SQLiteLockFile.testdb)
+
+    def acquire(self, timeout=None):
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        if timeout is None:
+            wait = 0.1
+        elif timeout <= 0:
+            wait = 0
+        else:
+            wait = timeout / 10
+
+        cursor = self.connection.cursor()
+
+        while True:
+            if not self.is_locked():
+                # Not locked.  Try to lock it.
+                cursor.execute("insert into locks"
+                               "  (lock_file, unique_name)"
+                               "  values"
+                               "  (?, ?)",
+                               (self.lock_file, self.unique_name))
+                self.connection.commit()
+
+                # Check to see if we are the only lock holder.
+                cursor.execute("select * from locks"
+                               "  where unique_name = ?",
+                               (self.unique_name,))
+                rows = cursor.fetchall()
+                if len(rows) > 1:
+                    # Nope.  Someone else got there.  Remove our lock.
+                    cursor.execute("delete from locks"
+                                   "  where unique_name = ?",
+                                   (self.unique_name,))
+                    self.connection.commit()
+                else:
+                    # Yup.  We're done, so go home.
+                    return
+            else:
+                # Check to see if we are the only lock holder.
+                cursor.execute("select * from locks"
+                               "  where unique_name = ?",
+                               (self.unique_name,))
+                rows = cursor.fetchall()
+                if len(rows) == 1:
+                    # We're the locker, so go home.
+                    return
+
+            # Maybe we should wait a bit longer.
+            if timeout is not None and time.time() > end_time:
+                if timeout > 0:
+                    # No more waiting.
+                    raise LockTimeout("Timeout waiting to acquire"
+                                      " lock for %s" %
+                                      self.path)
+                else:
+                    # Someone else has the lock and we are impatient..
+                    raise AlreadyLocked("%s is already locked" % self.path)
+
+            # Well, okay.  We'll give it a bit longer.
+            time.sleep(wait)
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        if not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me (by %s)" %
+                            (self.unique_name, self._who_is_locking()))
+        cursor = self.connection.cursor()
+        cursor.execute("delete from locks"
+                       "  where unique_name = ?",
+                       (self.unique_name,))
+        self.connection.commit()
+
+    def _who_is_locking(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select unique_name from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        return cursor.fetchone()[0]
+
+    def is_locked(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select * from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        rows = cursor.fetchall()
+        return not not rows
+
+    def i_am_locking(self):
+        cursor = self.connection.cursor()
+        cursor.execute("select * from locks"
+                       "  where lock_file = ?"
+                       "    and unique_name = ?",
+                       (self.lock_file, self.unique_name))
+        return not not cursor.fetchall()
+
+    def break_lock(self):
+        cursor = self.connection.cursor()
+        cursor.execute("delete from locks"
+                       "  where lock_file = ?",
+                       (self.lock_file,))
+        self.connection.commit()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py
new file mode 100644
index 0000000..23b41f5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/lockfile/symlinklockfile.py
@@ -0,0 +1,70 @@
+from __future__ import absolute_import
+
+import os
+import time
+
+from . import (LockBase, NotLocked, NotMyLock, LockTimeout,
+               AlreadyLocked)
+
+
+class SymlinkLockFile(LockBase):
+    """Lock access to a file using symlink(2)."""
+
+    def __init__(self, path, threaded=True, timeout=None):
+        # super(SymlinkLockFile).__init(...)
+        LockBase.__init__(self, path, threaded, timeout)
+        # split it back!
+        self.unique_name = os.path.split(self.unique_name)[1]
+
+    def acquire(self, timeout=None):
+        # Hopefully unnecessary for symlink.
+        # try:
+        #     open(self.unique_name, "wb").close()
+        # except IOError:
+        #     raise LockFailed("failed to create %s" % self.unique_name)
+        timeout = timeout if timeout is not None else self.timeout
+        end_time = time.time()
+        if timeout is not None and timeout > 0:
+            end_time += timeout
+
+        while True:
+            # Try and create a symbolic link to it.
+            try:
+                os.symlink(self.unique_name, self.lock_file)
+            except OSError:
+                # Link creation failed.  Maybe we've double-locked?
+                if self.i_am_locking():
+                    # Linked to out unique name. Proceed.
+                    return
+                else:
+                    # Otherwise the lock creation failed.
+                    if timeout is not None and time.time() > end_time:
+                        if timeout > 0:
+                            raise LockTimeout("Timeout waiting to acquire"
+                                              " lock for %s" %
+                                              self.path)
+                        else:
+                            raise AlreadyLocked("%s is already locked" %
+                                                self.path)
+                    time.sleep(timeout / 10 if timeout is not None else 0.1)
+            else:
+                # Link creation succeeded.  We're good to go.
+                return
+
+    def release(self):
+        if not self.is_locked():
+            raise NotLocked("%s is not locked" % self.path)
+        elif not self.i_am_locking():
+            raise NotMyLock("%s is locked, but not by me" % self.path)
+        os.unlink(self.lock_file)
+
+    def is_locked(self):
+        return os.path.islink(self.lock_file)
+
+    def i_am_locking(self):
+        return (os.path.islink(self.lock_file)
+                and os.readlink(self.lock_file) == self.unique_name)
+
+    def break_lock(self):
+        if os.path.islink(self.lock_file):  # exists && link
+            os.unlink(self.lock_file)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/ordereddict.py b/venv1/lib/python3.5/site-packages/pip/_vendor/ordereddict.py
new file mode 100644
index 0000000..7242b50
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/ordereddict.py
@@ -0,0 +1,127 @@
+# Copyright (c) 2009 Raymond Hettinger
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation files
+# (the "Software"), to deal in the Software without restriction,
+# including without limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of the Software,
+# and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+#     The above copyright notice and this permission notice shall be
+#     included in all copies or substantial portions of the Software.
+#
+#     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+#     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+#     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+#     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+#     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+#     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+#     OTHER DEALINGS IN THE SOFTWARE.
+
+from UserDict import DictMixin
+
+class OrderedDict(dict, DictMixin):
+
+    def __init__(self, *args, **kwds):
+        if len(args) > 1:
+            raise TypeError('expected at most 1 arguments, got %d' % len(args))
+        try:
+            self.__end
+        except AttributeError:
+            self.clear()
+        self.update(*args, **kwds)
+
+    def clear(self):
+        self.__end = end = []
+        end += [None, end, end]         # sentinel node for doubly linked list
+        self.__map = {}                 # key --> [key, prev, next]
+        dict.clear(self)
+
+    def __setitem__(self, key, value):
+        if key not in self:
+            end = self.__end
+            curr = end[1]
+            curr[2] = end[1] = self.__map[key] = [key, curr, end]
+        dict.__setitem__(self, key, value)
+
+    def __delitem__(self, key):
+        dict.__delitem__(self, key)
+        key, prev, next = self.__map.pop(key)
+        prev[2] = next
+        next[1] = prev
+
+    def __iter__(self):
+        end = self.__end
+        curr = end[2]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[2]
+
+    def __reversed__(self):
+        end = self.__end
+        curr = end[1]
+        while curr is not end:
+            yield curr[0]
+            curr = curr[1]
+
+    def popitem(self, last=True):
+        if not self:
+            raise KeyError('dictionary is empty')
+        if last:
+            key = reversed(self).next()
+        else:
+            key = iter(self).next()
+        value = self.pop(key)
+        return key, value
+
+    def __reduce__(self):
+        items = [[k, self[k]] for k in self]
+        tmp = self.__map, self.__end
+        del self.__map, self.__end
+        inst_dict = vars(self).copy()
+        self.__map, self.__end = tmp
+        if inst_dict:
+            return (self.__class__, (items,), inst_dict)
+        return self.__class__, (items,)
+
+    def keys(self):
+        return list(self)
+
+    setdefault = DictMixin.setdefault
+    update = DictMixin.update
+    pop = DictMixin.pop
+    values = DictMixin.values
+    items = DictMixin.items
+    iterkeys = DictMixin.iterkeys
+    itervalues = DictMixin.itervalues
+    iteritems = DictMixin.iteritems
+
+    def __repr__(self):
+        if not self:
+            return '%s()' % (self.__class__.__name__,)
+        return '%s(%r)' % (self.__class__.__name__, self.items())
+
+    def copy(self):
+        return self.__class__(self)
+
+    @classmethod
+    def fromkeys(cls, iterable, value=None):
+        d = cls()
+        for key in iterable:
+            d[key] = value
+        return d
+
+    def __eq__(self, other):
+        if isinstance(other, OrderedDict):
+            if len(self) != len(other):
+                return False
+            for p, q in  zip(self.items(), other.items()):
+                if p != q:
+                    return False
+            return True
+        return dict.__eq__(self, other)
+
+    def __ne__(self, other):
+        return not self == other
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py
new file mode 100644
index 0000000..95d330e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__about__.py
@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
+
+__title__ = "packaging"
+__summary__ = "Core utilities for Python packages"
+__uri__ = "https://github.com/pypa/packaging"
+
+__version__ = "16.8"
+
+__author__ = "Donald Stufft and individual contributors"
+__email__ = "donald@stufft.io"
+
+__license__ = "BSD or Apache License, Version 2.0"
+__copyright__ = "Copyright 2014-2016 %s" % __author__
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py
new file mode 100644
index 0000000..5ee6220
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__init__.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+from .__about__ import (
+    __author__, __copyright__, __email__, __license__, __summary__, __title__,
+    __uri__, __version__
+)
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__pycache__/version.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/__pycache__/version.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py
new file mode 100644
index 0000000..210bb80
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_compat.py
@@ -0,0 +1,30 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import sys
+
+
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+
+# flake8: noqa
+
+if PY3:
+    string_types = str,
+else:
+    string_types = basestring,
+
+
+def with_metaclass(meta, *bases):
+    """
+    Create a base class with a metaclass.
+    """
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py
new file mode 100644
index 0000000..ccc2786
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/_structures.py
@@ -0,0 +1,68 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+
+class Infinity(object):
+
+    def __repr__(self):
+        return "Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self, other):
+        return True
+
+    def __neg__(self):
+        return NegativeInfinity
+
+Infinity = Infinity()
+
+
+class NegativeInfinity(object):
+
+    def __repr__(self):
+        return "-Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+    def __neg__(self):
+        return Infinity
+
+NegativeInfinity = NegativeInfinity()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py
new file mode 100644
index 0000000..f9ca1ff
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/markers.py
@@ -0,0 +1,303 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import operator
+import os
+import platform
+import sys
+
+from pip._vendor.pyparsing import (
+    ParseException, ParseResults, stringStart, stringEnd,
+)
+from pip._vendor.pyparsing import ZeroOrMore, Group, Forward, QuotedString
+from pip._vendor.pyparsing import Literal as L  # noqa
+
+from ._compat import string_types
+from .specifiers import Specifier, InvalidSpecifier
+
+
+__all__ = [
+    "InvalidMarker", "UndefinedComparison", "UndefinedEnvironmentName",
+    "Marker", "default_environment",
+]
+
+
+class InvalidMarker(ValueError):
+    """
+    An invalid marker was found, users should refer to PEP 508.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """
+    An invalid operation was attempted on a value that doesn't support it.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """
+    A name was attempted to be used that does not exist inside of the
+    environment.
+    """
+
+
+class Node(object):
+
+    def __init__(self, value):
+        self.value = value
+
+    def __str__(self):
+        return str(self.value)
+
+    def __repr__(self):
+        return "<{0}({1!r})>".format(self.__class__.__name__, str(self))
+
+    def serialize(self):
+        raise NotImplementedError
+
+
+class Variable(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+class Value(Node):
+
+    def serialize(self):
+        return '"{0}"'.format(self)
+
+
+class Op(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+VARIABLE = (
+    L("implementation_version") |
+    L("platform_python_implementation") |
+    L("implementation_name") |
+    L("python_full_version") |
+    L("platform_release") |
+    L("platform_version") |
+    L("platform_machine") |
+    L("platform_system") |
+    L("python_version") |
+    L("sys_platform") |
+    L("os_name") |
+    L("os.name") |  # PEP-345
+    L("sys.platform") |  # PEP-345
+    L("platform.version") |  # PEP-345
+    L("platform.machine") |  # PEP-345
+    L("platform.python_implementation") |  # PEP-345
+    L("python_implementation") |  # undocumented setuptools legacy
+    L("extra")
+)
+ALIASES = {
+    'os.name': 'os_name',
+    'sys.platform': 'sys_platform',
+    'platform.version': 'platform_version',
+    'platform.machine': 'platform_machine',
+    'platform.python_implementation': 'platform_python_implementation',
+    'python_implementation': 'platform_python_implementation'
+}
+VARIABLE.setParseAction(lambda s, l, t: Variable(ALIASES.get(t[0], t[0])))
+
+VERSION_CMP = (
+    L("===") |
+    L("==") |
+    L(">=") |
+    L("<=") |
+    L("!=") |
+    L("~=") |
+    L(">") |
+    L("<")
+)
+
+MARKER_OP = VERSION_CMP | L("not in") | L("in")
+MARKER_OP.setParseAction(lambda s, l, t: Op(t[0]))
+
+MARKER_VALUE = QuotedString("'") | QuotedString('"')
+MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0]))
+
+BOOLOP = L("and") | L("or")
+
+MARKER_VAR = VARIABLE | MARKER_VALUE
+
+MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR)
+MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0]))
+
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+
+MARKER_EXPR = Forward()
+MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN)
+MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR)
+
+MARKER = stringStart + MARKER_EXPR + stringEnd
+
+
+def _coerce_parse_result(results):
+    if isinstance(results, ParseResults):
+        return [_coerce_parse_result(i) for i in results]
+    else:
+        return results
+
+
+def _format_marker(marker, first=True):
+    assert isinstance(marker, (list, tuple, string_types))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (isinstance(marker, list) and len(marker) == 1 and
+            isinstance(marker[0], (list, tuple))):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": operator.lt,
+    "<=": operator.le,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.ge,
+    ">": operator.gt,
+}
+
+
+def _eval_op(lhs, op, rhs):
+    try:
+        spec = Specifier("".join([op.serialize(), rhs]))
+    except InvalidSpecifier:
+        pass
+    else:
+        return spec.contains(lhs)
+
+    oper = _operators.get(op.serialize())
+    if oper is None:
+        raise UndefinedComparison(
+            "Undefined {0!r} on {1!r} and {2!r}.".format(op, lhs, rhs)
+        )
+
+    return oper(lhs, rhs)
+
+
+_undefined = object()
+
+
+def _get_env(environment, name):
+    value = environment.get(name, _undefined)
+
+    if value is _undefined:
+        raise UndefinedEnvironmentName(
+            "{0!r} does not exist in evaluation environment.".format(name)
+        )
+
+    return value
+
+
+def _evaluate_markers(markers, environment):
+    groups = [[]]
+
+    for marker in markers:
+        assert isinstance(marker, (list, tuple, string_types))
+
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                lhs_value = _get_env(environment, lhs.value)
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                rhs_value = _get_env(environment, rhs.value)
+
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value))
+        else:
+            assert marker in ["and", "or"]
+            if marker == "or":
+                groups.append([])
+
+    return any(all(item) for item in groups)
+
+
+def format_full_version(info):
+    version = '{0.major}.{0.minor}.{0.micro}'.format(info)
+    kind = info.releaselevel
+    if kind != 'final':
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment():
+    if hasattr(sys, 'implementation'):
+        iver = format_full_version(sys.implementation.version)
+        implementation_name = sys.implementation.name
+    else:
+        iver = '0'
+        implementation_name = ''
+
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": platform.python_version()[:3],
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker(object):
+
+    def __init__(self, marker):
+        try:
+            self._markers = _coerce_parse_result(MARKER.parseString(marker))
+        except ParseException as e:
+            err_str = "Invalid marker: {0!r}, parse error at {1!r}".format(
+                marker, marker[e.loc:e.loc + 8])
+            raise InvalidMarker(err_str)
+
+    def __str__(self):
+        return _format_marker(self._markers)
+
+    def __repr__(self):
+        return "<Marker({0!r})>".format(str(self))
+
+    def evaluate(self, environment=None):
+        """Evaluate a marker.
+
+        Return the boolean from evaluating the given marker against the
+        environment. environment is an optional argument to override all or
+        part of the determined environment.
+
+        The environment is determined from the current Python process.
+        """
+        current_environment = default_environment()
+        if environment is not None:
+            current_environment.update(environment)
+
+        return _evaluate_markers(self._markers, current_environment)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py
new file mode 100644
index 0000000..49a4385
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/requirements.py
@@ -0,0 +1,129 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import string
+import re
+
+from pip._vendor.pyparsing import (
+    stringStart, stringEnd, originalTextFor, ParseException
+)
+from pip._vendor.pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
+from pip._vendor.pyparsing import Literal as L  # noqa
+from pip._vendor.six.moves.urllib import parse as urlparse
+
+from .markers import MARKER_EXPR, Marker
+from .specifiers import LegacySpecifier, Specifier, SpecifierSet
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+ALPHANUM = Word(string.ascii_letters + string.digits)
+
+LBRACKET = L("[").suppress()
+RBRACKET = L("]").suppress()
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+COMMA = L(",").suppress()
+SEMICOLON = L(";").suppress()
+AT = L("@").suppress()
+
+PUNCTUATION = Word("-_.")
+IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
+IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
+
+NAME = IDENTIFIER("name")
+EXTRA = IDENTIFIER
+
+URI = Regex(r'[^ ]+')("url")
+URL = (AT + URI)
+
+EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA)
+EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras")
+
+VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE)
+VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE)
+
+VERSION_ONE = VERSION_PEP440 ^ VERSION_LEGACY
+VERSION_MANY = Combine(VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE),
+                       joinString=",", adjacent=False)("_raw_spec")
+_VERSION_SPEC = Optional(((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY))
+_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or '')
+
+VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier")
+VERSION_SPEC.setParseAction(lambda s, l, t: t[1])
+
+MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
+MARKER_EXPR.setParseAction(
+    lambda s, l, t: Marker(s[t._original_start:t._original_end])
+)
+MARKER_SEPERATOR = SEMICOLON
+MARKER = MARKER_SEPERATOR + MARKER_EXPR
+
+VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER)
+URL_AND_MARKER = URL + Optional(MARKER)
+
+NAMED_REQUIREMENT = \
+    NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER)
+
+REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd
+
+
+class Requirement(object):
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string):
+        try:
+            req = REQUIREMENT.parseString(requirement_string)
+        except ParseException as e:
+            raise InvalidRequirement(
+                "Invalid requirement, parse error at \"{0!r}\"".format(
+                    requirement_string[e.loc:e.loc + 8]))
+
+        self.name = req.name
+        if req.url:
+            parsed_url = urlparse.urlparse(req.url)
+            if not (parsed_url.scheme and parsed_url.netloc) or (
+                    not parsed_url.scheme and not parsed_url.netloc):
+                raise InvalidRequirement("Invalid URL given")
+            self.url = req.url
+        else:
+            self.url = None
+        self.extras = set(req.extras.asList() if req.extras else [])
+        self.specifier = SpecifierSet(req.specifier)
+        self.marker = req.marker if req.marker else None
+
+    def __str__(self):
+        parts = [self.name]
+
+        if self.extras:
+            parts.append("[{0}]".format(",".join(sorted(self.extras))))
+
+        if self.specifier:
+            parts.append(str(self.specifier))
+
+        if self.url:
+            parts.append("@ {0}".format(self.url))
+
+        if self.marker:
+            parts.append("; {0}".format(self.marker))
+
+        return "".join(parts)
+
+    def __repr__(self):
+        return "<Requirement({0!r})>".format(str(self))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py
new file mode 100644
index 0000000..7f5a76c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/specifiers.py
@@ -0,0 +1,774 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import abc
+import functools
+import itertools
+import re
+
+from ._compat import string_types, with_metaclass
+from .version import Version, LegacyVersion, parse
+
+
+class InvalidSpecifier(ValueError):
+    """
+    An invalid specifier was found, users should refer to PEP 440.
+    """
+
+
+class BaseSpecifier(with_metaclass(abc.ABCMeta, object)):
+
+    @abc.abstractmethod
+    def __str__(self):
+        """
+        Returns the str representation of this Specifier like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self):
+        """
+        Returns a hash value for this Specifier like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are equal.
+        """
+
+    @abc.abstractmethod
+    def __ne__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are not equal.
+        """
+
+    @abc.abstractproperty
+    def prereleases(self):
+        """
+        Returns whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @prereleases.setter
+    def prereleases(self, value):
+        """
+        Sets whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item, prereleases=None):
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @abc.abstractmethod
+    def filter(self, iterable, prereleases=None):
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class _IndividualSpecifier(BaseSpecifier):
+
+    _operators = {}
+
+    def __init__(self, spec="", prereleases=None):
+        match = self._regex.search(spec)
+        if not match:
+            raise InvalidSpecifier("Invalid specifier: '{0}'".format(spec))
+
+        self._spec = (
+            match.group("operator").strip(),
+            match.group("version").strip(),
+        )
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<{0}({1!r}{2})>".format(
+            self.__class__.__name__,
+            str(self),
+            pre,
+        )
+
+    def __str__(self):
+        return "{0}{1}".format(*self._spec)
+
+    def __hash__(self):
+        return hash(self._spec)
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec == other._spec
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec != other._spec
+
+    def _get_operator(self, op):
+        return getattr(self, "_compare_{0}".format(self._operators[op]))
+
+    def _coerce_version(self, version):
+        if not isinstance(version, (LegacyVersion, Version)):
+            version = parse(version)
+        return version
+
+    @property
+    def operator(self):
+        return self._spec[0]
+
+    @property
+    def version(self):
+        return self._spec[1]
+
+    @property
+    def prereleases(self):
+        return self._prereleases
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Determine if prereleases are to be allowed or not.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # Normalize item to a Version or LegacyVersion, this allows us to have
+        # a shortcut for ``"2.0" in Specifier(">=2")
+        item = self._coerce_version(item)
+
+        # Determine if we should be supporting prereleases in this specifier
+        # or not, if we do not support prereleases than we can short circuit
+        # logic if this version is a prereleases.
+        if item.is_prerelease and not prereleases:
+            return False
+
+        # Actually do the comparison to determine if this item is contained
+        # within this Specifier or not.
+        return self._get_operator(self.operator)(item, self.version)
+
+    def filter(self, iterable, prereleases=None):
+        yielded = False
+        found_prereleases = []
+
+        kw = {"prereleases": prereleases if prereleases is not None else True}
+
+        # Attempt to iterate over all the values in the iterable and if any of
+        # them match, yield them.
+        for version in iterable:
+            parsed_version = self._coerce_version(version)
+
+            if self.contains(parsed_version, **kw):
+                # If our version is a prerelease, and we were not set to allow
+                # prereleases, then we'll store it for later incase nothing
+                # else matches this specifier.
+                if (parsed_version.is_prerelease and not
+                        (prereleases or self.prereleases)):
+                    found_prereleases.append(version)
+                # Either this is not a prerelease, or we should have been
+                # accepting prereleases from the begining.
+                else:
+                    yielded = True
+                    yield version
+
+        # Now that we've iterated over everything, determine if we've yielded
+        # any values, and if we have not and we have any prereleases stored up
+        # then we will go ahead and yield the prereleases.
+        if not yielded and found_prereleases:
+            for version in found_prereleases:
+                yield version
+
+
+class LegacySpecifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(==|!=|<=|>=|<|>))
+        \s*
+        (?P<version>
+            [^,;\s)]* # Since this is a "legacy" specifier, and the version
+                      # string can be just about anything, we match everything
+                      # except for whitespace, a semi-colon for marker support,
+                      # a closing paren since versions can be enclosed in
+                      # them, and a comma since it's a version separator.
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+    }
+
+    def _coerce_version(self, version):
+        if not isinstance(version, LegacyVersion):
+            version = LegacyVersion(str(version))
+        return version
+
+    def _compare_equal(self, prospective, spec):
+        return prospective == self._coerce_version(spec)
+
+    def _compare_not_equal(self, prospective, spec):
+        return prospective != self._coerce_version(spec)
+
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= self._coerce_version(spec)
+
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= self._coerce_version(spec)
+
+    def _compare_less_than(self, prospective, spec):
+        return prospective < self._coerce_version(spec)
+
+    def _compare_greater_than(self, prospective, spec):
+        return prospective > self._coerce_version(spec)
+
+
+def _require_version_compare(fn):
+    @functools.wraps(fn)
+    def wrapped(self, prospective, spec):
+        if not isinstance(prospective, Version):
+            return False
+        return fn(self, prospective, spec)
+    return wrapped
+
+
+class Specifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
+        (?P<version>
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                (?<====)  # Only match for the identity operator
+                \s*
+                [^\s]*    # We just match everything, except for whitespace
+                          # since we are only testing for strict identity.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?<===|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+
+                # You cannot use a wild card and a dev or local version
+                # together so group them with a | and make them optional.
+                (?:
+                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                    |
+                    \.\*  # Wild card syntax of .*
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?<=~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?<!==|!=|~=)         # We have special cases for these
+                                      # operators so we want to make sure they
+                                      # don't match here.
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "~=": "compatible",
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    @_require_version_compare
+    def _compare_compatible(self, prospective, spec):
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore post and dev releases and we want to treat the pre-release as
+        # it's own separate segment.
+        prefix = ".".join(
+            list(
+                itertools.takewhile(
+                    lambda x: (not x.startswith("post") and not
+                               x.startswith("dev")),
+                    _version_split(spec),
+                )
+            )[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return (self._get_operator(">=")(prospective, spec) and
+                self._get_operator("==")(prospective, prefix))
+
+    @_require_version_compare
+    def _compare_equal(self, prospective, spec):
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            # In the case of prefix matching we want to ignore local segment.
+            prospective = Version(prospective.public)
+            # Split the spec out by dots, and pretend that there is an implicit
+            # dot in between a release segment and a pre-release segment.
+            spec = _version_split(spec[:-2])  # Remove the trailing .*
+
+            # Split the prospective version out by dots, and pretend that there
+            # is an implicit dot in between a release segment and a pre-release
+            # segment.
+            prospective = _version_split(str(prospective))
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            prospective = prospective[:len(spec)]
+
+            # Pad out our two sides with zeros so that they both equal the same
+            # length.
+            spec, prospective = _pad_version(spec, prospective)
+        else:
+            # Convert our spec string into a Version
+            spec = Version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec.local:
+                prospective = Version(prospective.public)
+
+        return prospective == spec
+
+    @_require_version_compare
+    def _compare_not_equal(self, prospective, spec):
+        return not self._compare_equal(prospective, spec)
+
+    @_require_version_compare
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= Version(spec)
+
+    @_require_version_compare
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= Version(spec)
+
+    @_require_version_compare
+    def _compare_less_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a pre-release version, that we do not accept pre-release
+        # versions for the version mentioned in the specifier (e.g. <3.1 should
+        # not match 3.1.dev0, but should match 3.0.dev0).
+        if not spec.is_prerelease and prospective.is_prerelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    @_require_version_compare
+    def _compare_greater_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a post-release version, that we do not accept
+        # post-release versions for the version mentioned in the specifier
+        # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0).
+        if not spec.is_postrelease and prospective.is_postrelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # Ensure that we do not allow a local version of the version mentioned
+        # in the specifier, which is techincally greater than, to match.
+        if prospective.local is not None:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective, spec):
+        return str(prospective).lower() == str(spec).lower()
+
+    @property
+    def prereleases(self):
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Look at all of our specifiers and determine if they are inclusive
+        # operators, and if they are if they are including an explicit
+        # prerelease.
+        operator, version = self._spec
+        if operator in ["==", ">=", "<=", "~=", "==="]:
+            # The == specifier can include a trailing .*, if it does we
+            # want to remove before parsing.
+            if operator == "==" and version.endswith(".*"):
+                version = version[:-2]
+
+            # Parse the version, and if it is a pre-release than this
+            # specifier allows pre-releases.
+            if parse(version).is_prerelease:
+                return True
+
+        return False
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+
+_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
+
+
+def _version_split(version):
+    result = []
+    for item in version.split("."):
+        match = _prefix_regex.search(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _pad_version(left, right):
+    left_split, right_split = [], []
+
+    # Get the release segment of our versions
+    left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left)))
+    right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right)))
+
+    # Get the rest of our versions
+    left_split.append(left[len(left_split[0]):])
+    right_split.append(right[len(right_split[0]):])
+
+    # Insert our padding
+    left_split.insert(
+        1,
+        ["0"] * max(0, len(right_split[0]) - len(left_split[0])),
+    )
+    right_split.insert(
+        1,
+        ["0"] * max(0, len(left_split[0]) - len(right_split[0])),
+    )
+
+    return (
+        list(itertools.chain(*left_split)),
+        list(itertools.chain(*right_split)),
+    )
+
+
+class SpecifierSet(BaseSpecifier):
+
+    def __init__(self, specifiers="", prereleases=None):
+        # Split on , to break each indidivual specifier into it's own item, and
+        # strip each item to remove leading/trailing whitespace.
+        specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+        # Parsed each individual specifier, attempting first to make it a
+        # Specifier and falling back to a LegacySpecifier.
+        parsed = set()
+        for specifier in specifiers:
+            try:
+                parsed.add(Specifier(specifier))
+            except InvalidSpecifier:
+                parsed.add(LegacySpecifier(specifier))
+
+        # Turn our parsed specifiers into a frozen set and save them for later.
+        self._specs = frozenset(parsed)
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<SpecifierSet({0!r}{1})>".format(str(self), pre)
+
+    def __str__(self):
+        return ",".join(sorted(str(s) for s in self._specs))
+
+    def __hash__(self):
+        return hash(self._specs)
+
+    def __and__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = frozenset(self._specs | other._specs)
+
+        if self._prereleases is None and other._prereleases is not None:
+            specifier._prereleases = other._prereleases
+        elif self._prereleases is not None and other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        elif self._prereleases == other._prereleases:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease "
+                "overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs == other._specs
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs != other._specs
+
+    def __len__(self):
+        return len(self._specs)
+
+    def __iter__(self):
+        return iter(self._specs)
+
+    @property
+    def prereleases(self):
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        return any(s.prereleases for s in self._specs)
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Ensure that our item is a Version or LegacyVersion instance.
+        if not isinstance(item, (LegacyVersion, Version)):
+            item = parse(item)
+
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # We can determine if we're going to allow pre-releases by looking to
+        # see if any of the underlying items supports them. If none of them do
+        # and this item is a pre-release then we do not allow it and we can
+        # short circuit that here.
+        # Note: This means that 1.0.dev1 would not be contained in something
+        #       like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0
+        if not prereleases and item.is_prerelease:
+            return False
+
+        # We simply dispatch to the underlying specs here to make sure that the
+        # given version is contained within all of them.
+        # Note: This use of all() here means that an empty set of specifiers
+        #       will always return True, this is an explicit design decision.
+        return all(
+            s.contains(item, prereleases=prereleases)
+            for s in self._specs
+        )
+
+    def filter(self, iterable, prereleases=None):
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # If we have any specifiers, then we want to wrap our iterable in the
+        # filter method for each one, this will act as a logical AND amongst
+        # each specifier.
+        if self._specs:
+            for spec in self._specs:
+                iterable = spec.filter(iterable, prereleases=bool(prereleases))
+            return iterable
+        # If we do not have any specifiers, then we need to have a rough filter
+        # which will filter out any pre-releases, unless there are no final
+        # releases, and which will filter out LegacyVersion in general.
+        else:
+            filtered = []
+            found_prereleases = []
+
+            for item in iterable:
+                # Ensure that we some kind of Version class for this item.
+                if not isinstance(item, (LegacyVersion, Version)):
+                    parsed_version = parse(item)
+                else:
+                    parsed_version = item
+
+                # Filter out any item which is parsed as a LegacyVersion
+                if isinstance(parsed_version, LegacyVersion):
+                    continue
+
+                # Store any item which is a pre-release for later unless we've
+                # already found a final version or we are accepting prereleases
+                if parsed_version.is_prerelease and not prereleases:
+                    if not filtered:
+                        found_prereleases.append(item)
+                else:
+                    filtered.append(item)
+
+            # If we've found no items except for pre-releases, then we'll go
+            # ahead and use the pre-releases
+            if not filtered and found_prereleases and prereleases is None:
+                return found_prereleases
+
+            return filtered
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py
new file mode 100644
index 0000000..942387c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/utils.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import re
+
+
+_canonicalize_regex = re.compile(r"[-_.]+")
+
+
+def canonicalize_name(name):
+    # This is taken from PEP 503.
+    return _canonicalize_regex.sub("-", name).lower()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/version.py b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/version.py
new file mode 100644
index 0000000..83b5ee8
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/packaging/version.py
@@ -0,0 +1,393 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import collections
+import itertools
+import re
+
+from ._structures import Infinity
+
+
+__all__ = [
+    "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"
+]
+
+
+_Version = collections.namedtuple(
+    "_Version",
+    ["epoch", "release", "dev", "pre", "post", "local"],
+)
+
+
+def parse(version):
+    """
+    Parse the given version string and return either a :class:`Version` object
+    or a :class:`LegacyVersion` object depending on if the given version is
+    a valid PEP 440 version or a legacy version.
+    """
+    try:
+        return Version(version)
+    except InvalidVersion:
+        return LegacyVersion(version)
+
+
+class InvalidVersion(ValueError):
+    """
+    An invalid version was found, users should refer to PEP 440.
+    """
+
+
+class _BaseVersion(object):
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class LegacyVersion(_BaseVersion):
+
+    def __init__(self, version):
+        self._version = str(version)
+        self._key = _legacy_cmpkey(self._version)
+
+    def __str__(self):
+        return self._version
+
+    def __repr__(self):
+        return "<LegacyVersion({0})>".format(repr(str(self)))
+
+    @property
+    def public(self):
+        return self._version
+
+    @property
+    def base_version(self):
+        return self._version
+
+    @property
+    def local(self):
+        return None
+
+    @property
+    def is_prerelease(self):
+        return False
+
+    @property
+    def is_postrelease(self):
+        return False
+
+
+_legacy_version_component_re = re.compile(
+    r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE,
+)
+
+_legacy_version_replacement_map = {
+    "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@",
+}
+
+
+def _parse_version_parts(s):
+    for part in _legacy_version_component_re.split(s):
+        part = _legacy_version_replacement_map.get(part, part)
+
+        if not part or part == ".":
+            continue
+
+        if part[:1] in "0123456789":
+            # pad for numeric comparison
+            yield part.zfill(8)
+        else:
+            yield "*" + part
+
+    # ensure that alpha/beta/candidate are before final
+    yield "*final"
+
+
+def _legacy_cmpkey(version):
+    # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
+    # greater than or equal to 0. This will effectively put the LegacyVersion,
+    # which uses the defacto standard originally implemented by setuptools,
+    # as before all PEP 440 versions.
+    epoch = -1
+
+    # This scheme is taken from pkg_resources.parse_version setuptools prior to
+    # it's adoption of the packaging library.
+    parts = []
+    for part in _parse_version_parts(version.lower()):
+        if part.startswith("*"):
+            # remove "-" before a prerelease tag
+            if part < "*final":
+                while parts and parts[-1] == "*final-":
+                    parts.pop()
+
+            # remove trailing zeros from each series of numeric parts
+            while parts and parts[-1] == "00000000":
+                parts.pop()
+
+        parts.append(part)
+    parts = tuple(parts)
+
+    return epoch, parts
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P<epoch>[0-9]+)!)?                           # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P<pre>                                          # pre-release
+            [-_\.]?
+            (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P<pre_n>[0-9]+)?
+        )?
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?P<post_l>post|rev|r)
+                [-_\.]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?
+        (?P<dev>                                          # dev release
+            [-_\.]?
+            (?P<dev_l>dev)
+            [-_\.]?
+            (?P<dev_n>[0-9]+)?
+        )?
+    )
+    (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(
+        r"^\s*" + VERSION_PATTERN + r"\s*$",
+        re.VERBOSE | re.IGNORECASE,
+    )
+
+    def __init__(self, version):
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion("Invalid version: '{0}'".format(version))
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(
+                match.group("pre_l"),
+                match.group("pre_n"),
+            ),
+            post=_parse_letter_version(
+                match.group("post_l"),
+                match.group("post_n1") or match.group("post_n2"),
+            ),
+            dev=_parse_letter_version(
+                match.group("dev_l"),
+                match.group("dev_n"),
+            ),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self):
+        return "<Version({0})>".format(repr(str(self)))
+
+    def __str__(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        # Pre-release
+        if self._version.pre is not None:
+            parts.append("".join(str(x) for x in self._version.pre))
+
+        # Post-release
+        if self._version.post is not None:
+            parts.append(".post{0}".format(self._version.post[1]))
+
+        # Development release
+        if self._version.dev is not None:
+            parts.append(".dev{0}".format(self._version.dev[1]))
+
+        # Local version segment
+        if self._version.local is not None:
+            parts.append(
+                "+{0}".format(".".join(str(x) for x in self._version.local))
+            )
+
+        return "".join(parts)
+
+    @property
+    def public(self):
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        return "".join(parts)
+
+    @property
+    def local(self):
+        version_string = str(self)
+        if "+" in version_string:
+            return version_string.split("+", 1)[1]
+
+    @property
+    def is_prerelease(self):
+        return bool(self._version.dev or self._version.pre)
+
+    @property
+    def is_postrelease(self):
+        return bool(self._version.post)
+
+
+def _parse_letter_version(letter, number):
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+
+_local_version_seperators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local):
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_seperators.split(local)
+        )
+
+
+def _cmpkey(epoch, release, pre, post, dev, local):
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    release = tuple(
+        reversed(list(
+            itertools.dropwhile(
+                lambda x: x == 0,
+                reversed(release),
+            )
+        ))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        pre = -Infinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        pre = Infinity
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        post = -Infinity
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        dev = Infinity
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        local = -Infinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        local = tuple(
+            (i, "") if isinstance(i, int) else (-Infinity, i)
+            for i in local
+        )
+
+    return epoch, release, pre, post, dev, local
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py
new file mode 100644
index 0000000..b8e598b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__init__.py
@@ -0,0 +1,3052 @@
+# coding: utf-8
+"""
+Package resource API
+--------------------
+
+A resource is a logical file contained within a package, or a logical
+subdirectory thereof.  The package resource API expects resource names
+to have their path parts separated with ``/``, *not* whatever the local
+path separator is.  Do not use os.path operations to manipulate resource
+names being passed into the API.
+
+The package resource API is designed to work with normal filesystem packages,
+.egg files, and unpacked .egg files.  It can also work in a limited way with
+.zip files and with custom PEP 302 loaders that support the ``get_data()``
+method.
+"""
+
+from __future__ import absolute_import
+
+import sys
+import os
+import io
+import time
+import re
+import types
+import zipfile
+import zipimport
+import warnings
+import stat
+import functools
+import pkgutil
+import operator
+import platform
+import collections
+import plistlib
+import email.parser
+import tempfile
+import textwrap
+import itertools
+from pkgutil import get_importer
+
+try:
+    import _imp
+except ImportError:
+    # Python 3.2 compatibility
+    import imp as _imp
+
+from pip._vendor import six
+from pip._vendor.six.moves import urllib, map, filter
+
+# capture these to bypass sandboxing
+from os import utime
+try:
+    from os import mkdir, rename, unlink
+    WRITE_SUPPORT = True
+except ImportError:
+    # no write support, probably under GAE
+    WRITE_SUPPORT = False
+
+from os import open as os_open
+from os.path import isdir, split
+
+try:
+    import importlib.machinery as importlib_machinery
+    # access attribute to force import under delayed import mechanisms.
+    importlib_machinery.__name__
+except ImportError:
+    importlib_machinery = None
+
+from pip._vendor import appdirs
+from pip._vendor import packaging
+__import__('pip._vendor.packaging.version')
+__import__('pip._vendor.packaging.specifiers')
+__import__('pip._vendor.packaging.requirements')
+__import__('pip._vendor.packaging.markers')
+
+
+if (3, 0) < sys.version_info < (3, 3):
+    msg = (
+        "Support for Python 3.0-3.2 has been dropped. Future versions "
+        "will fail here."
+    )
+    warnings.warn(msg)
+
+# declare some globals that will be defined later to
+# satisfy the linters.
+require = None
+working_set = None
+
+
+class PEP440Warning(RuntimeWarning):
+    """
+    Used when there is an issue with a version or specifier not complying with
+    PEP 440.
+    """
+
+
+class _SetuptoolsVersionMixin(object):
+    def __hash__(self):
+        return super(_SetuptoolsVersionMixin, self).__hash__()
+
+    def __lt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) < other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__lt__(other)
+
+    def __le__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) <= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__le__(other)
+
+    def __eq__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) == other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__eq__(other)
+
+    def __ge__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) >= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ge__(other)
+
+    def __gt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) > other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__gt__(other)
+
+    def __ne__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) != other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ne__(other)
+
+    def __getitem__(self, key):
+        return tuple(self)[key]
+
+    def __iter__(self):
+        component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
+        replace = {
+            'pre': 'c',
+            'preview': 'c',
+            '-': 'final-',
+            'rc': 'c',
+            'dev': '@',
+        }.get
+
+        def _parse_version_parts(s):
+            for part in component_re.split(s):
+                part = replace(part, part)
+                if not part or part == '.':
+                    continue
+                if part[:1] in '0123456789':
+                    # pad for numeric comparison
+                    yield part.zfill(8)
+                else:
+                    yield '*' + part
+
+            # ensure that alpha/beta/candidate are before final
+            yield '*final'
+
+        def old_parse_version(s):
+            parts = []
+            for part in _parse_version_parts(s.lower()):
+                if part.startswith('*'):
+                    # remove '-' before a prerelease tag
+                    if part < '*final':
+                        while parts and parts[-1] == '*final-':
+                            parts.pop()
+                    # remove trailing zeros from each series of numeric parts
+                    while parts and parts[-1] == '00000000':
+                        parts.pop()
+                parts.append(part)
+            return tuple(parts)
+
+        # Warn for use of this function
+        warnings.warn(
+            "You have iterated over the result of "
+            "pkg_resources.parse_version. This is a legacy behavior which is "
+            "inconsistent with the new version class introduced in setuptools "
+            "8.0. In most cases, conversion to a tuple is unnecessary. For "
+            "comparison of versions, sort the Version instances directly. If "
+            "you have another use case requiring the tuple, please file a "
+            "bug with the setuptools project describing that need.",
+            RuntimeWarning,
+            stacklevel=1,
+        )
+
+        for part in old_parse_version(str(self)):
+            yield part
+
+
+class SetuptoolsVersion(_SetuptoolsVersionMixin, packaging.version.Version):
+    pass
+
+
+class SetuptoolsLegacyVersion(_SetuptoolsVersionMixin,
+                              packaging.version.LegacyVersion):
+    pass
+
+
+def parse_version(v):
+    try:
+        return SetuptoolsVersion(v)
+    except packaging.version.InvalidVersion:
+        return SetuptoolsLegacyVersion(v)
+
+
+_state_vars = {}
+
+
+def _declare_state(vartype, **kw):
+    globals().update(kw)
+    _state_vars.update(dict.fromkeys(kw, vartype))
+
+
+def __getstate__():
+    state = {}
+    g = globals()
+    for k, v in _state_vars.items():
+        state[k] = g['_sget_' + v](g[k])
+    return state
+
+
+def __setstate__(state):
+    g = globals()
+    for k, v in state.items():
+        g['_sset_' + _state_vars[k]](k, g[k], v)
+    return state
+
+
+def _sget_dict(val):
+    return val.copy()
+
+
+def _sset_dict(key, ob, state):
+    ob.clear()
+    ob.update(state)
+
+
+def _sget_object(val):
+    return val.__getstate__()
+
+
+def _sset_object(key, ob, state):
+    ob.__setstate__(state)
+
+
+_sget_none = _sset_none = lambda *args: None
+
+
+def get_supported_platform():
+    """Return this platform's maximum compatible version.
+
+    distutils.util.get_platform() normally reports the minimum version
+    of Mac OS X that would be required to *use* extensions produced by
+    distutils.  But what we want when checking compatibility is to know the
+    version of Mac OS X that we are *running*.  To allow usage of packages that
+    explicitly require a newer version of Mac OS X, we must also know the
+    current version of the OS.
+
+    If this condition occurs for any other platform with a version in its
+    platform strings, this function should be extended accordingly.
+    """
+    plat = get_build_platform()
+    m = macosVersionString.match(plat)
+    if m is not None and sys.platform == "darwin":
+        try:
+            plat = 'macosx-%s-%s' % ('.'.join(_macosx_vers()[:2]), m.group(3))
+        except ValueError:
+            # not Mac OS X
+            pass
+    return plat
+
+
+__all__ = [
+    # Basic resource access and distribution/entry point discovery
+    'require', 'run_script', 'get_provider', 'get_distribution',
+    'load_entry_point', 'get_entry_map', 'get_entry_info',
+    'iter_entry_points',
+    'resource_string', 'resource_stream', 'resource_filename',
+    'resource_listdir', 'resource_exists', 'resource_isdir',
+
+    # Environmental control
+    'declare_namespace', 'working_set', 'add_activation_listener',
+    'find_distributions', 'set_extraction_path', 'cleanup_resources',
+    'get_default_cache',
+
+    # Primary implementation classes
+    'Environment', 'WorkingSet', 'ResourceManager',
+    'Distribution', 'Requirement', 'EntryPoint',
+
+    # Exceptions
+    'ResolutionError', 'VersionConflict', 'DistributionNotFound',
+    'UnknownExtra', 'ExtractionError',
+
+    # Warnings
+    'PEP440Warning',
+
+    # Parsing functions and string utilities
+    'parse_requirements', 'parse_version', 'safe_name', 'safe_version',
+    'get_platform', 'compatible_platforms', 'yield_lines', 'split_sections',
+    'safe_extra', 'to_filename', 'invalid_marker', 'evaluate_marker',
+
+    # filesystem utilities
+    'ensure_directory', 'normalize_path',
+
+    # Distribution "precedence" constants
+    'EGG_DIST', 'BINARY_DIST', 'SOURCE_DIST', 'CHECKOUT_DIST', 'DEVELOP_DIST',
+
+    # "Provider" interfaces, implementations, and registration/lookup APIs
+    'IMetadataProvider', 'IResourceProvider', 'FileMetadata',
+    'PathMetadata', 'EggMetadata', 'EmptyProvider', 'empty_provider',
+    'NullProvider', 'EggProvider', 'DefaultProvider', 'ZipProvider',
+    'register_finder', 'register_namespace_handler', 'register_loader_type',
+    'fixup_namespace_packages', 'get_importer',
+
+    # Deprecated/backward compatibility only
+    'run_main', 'AvailableDistributions',
+]
+
+
+class ResolutionError(Exception):
+    """Abstract base for dependency resolution errors"""
+
+    def __repr__(self):
+        return self.__class__.__name__ + repr(self.args)
+
+
+class VersionConflict(ResolutionError):
+    """
+    An already-installed version conflicts with the requested version.
+
+    Should be initialized with the installed Distribution and the requested
+    Requirement.
+    """
+
+    _template = "{self.dist} is installed but {self.req} is required"
+
+    @property
+    def dist(self):
+        return self.args[0]
+
+    @property
+    def req(self):
+        return self.args[1]
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def with_context(self, required_by):
+        """
+        If required_by is non-empty, return a version of self that is a
+        ContextualVersionConflict.
+        """
+        if not required_by:
+            return self
+        args = self.args + (required_by,)
+        return ContextualVersionConflict(*args)
+
+
+class ContextualVersionConflict(VersionConflict):
+    """
+    A VersionConflict that accepts a third parameter, the set of the
+    requirements that required the installed Distribution.
+    """
+
+    _template = VersionConflict._template + ' by {self.required_by}'
+
+    @property
+    def required_by(self):
+        return self.args[2]
+
+
+class DistributionNotFound(ResolutionError):
+    """A requested distribution was not found"""
+
+    _template = ("The '{self.req}' distribution was not found "
+                 "and is required by {self.requirers_str}")
+
+    @property
+    def req(self):
+        return self.args[0]
+
+    @property
+    def requirers(self):
+        return self.args[1]
+
+    @property
+    def requirers_str(self):
+        if not self.requirers:
+            return 'the application'
+        return ', '.join(self.requirers)
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def __str__(self):
+        return self.report()
+
+
+class UnknownExtra(ResolutionError):
+    """Distribution doesn't have an "extra feature" of the given name"""
+
+
+_provider_factories = {}
+
+PY_MAJOR = sys.version[:3]
+EGG_DIST = 3
+BINARY_DIST = 2
+SOURCE_DIST = 1
+CHECKOUT_DIST = 0
+DEVELOP_DIST = -1
+
+
+def register_loader_type(loader_type, provider_factory):
+    """Register `provider_factory` to make providers for `loader_type`
+
+    `loader_type` is the type or class of a PEP 302 ``module.__loader__``,
+    and `provider_factory` is a function that, passed a *module* object,
+    returns an ``IResourceProvider`` for that module.
+    """
+    _provider_factories[loader_type] = provider_factory
+
+
+def get_provider(moduleOrReq):
+    """Return an IResourceProvider for the named module or requirement"""
+    if isinstance(moduleOrReq, Requirement):
+        return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
+    try:
+        module = sys.modules[moduleOrReq]
+    except KeyError:
+        __import__(moduleOrReq)
+        module = sys.modules[moduleOrReq]
+    loader = getattr(module, '__loader__', None)
+    return _find_adapter(_provider_factories, loader)(module)
+
+
+def _macosx_vers(_cache=[]):
+    if not _cache:
+        version = platform.mac_ver()[0]
+        # fallback for MacPorts
+        if version == '':
+            plist = '/System/Library/CoreServices/SystemVersion.plist'
+            if os.path.exists(plist):
+                if hasattr(plistlib, 'readPlist'):
+                    plist_content = plistlib.readPlist(plist)
+                    if 'ProductVersion' in plist_content:
+                        version = plist_content['ProductVersion']
+
+        _cache.append(version.split('.'))
+    return _cache[0]
+
+
+def _macosx_arch(machine):
+    return {'PowerPC': 'ppc', 'Power_Macintosh': 'ppc'}.get(machine, machine)
+
+
+def get_build_platform():
+    """Return this platform's string for platform-specific distributions
+
+    XXX Currently this is the same as ``distutils.util.get_platform()``, but it
+    needs some hacks for Linux and Mac OS X.
+    """
+    try:
+        # Python 2.7 or >=3.2
+        from sysconfig import get_platform
+    except ImportError:
+        from distutils.util import get_platform
+
+    plat = get_platform()
+    if sys.platform == "darwin" and not plat.startswith('macosx-'):
+        try:
+            version = _macosx_vers()
+            machine = os.uname()[4].replace(" ", "_")
+            return "macosx-%d.%d-%s" % (int(version[0]), int(version[1]),
+                _macosx_arch(machine))
+        except ValueError:
+            # if someone is running a non-Mac darwin system, this will fall
+            # through to the default implementation
+            pass
+    return plat
+
+
+macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)")
+darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)")
+# XXX backward compat
+get_platform = get_build_platform
+
+
+def compatible_platforms(provided, required):
+    """Can code for the `provided` platform run on the `required` platform?
+
+    Returns true if either platform is ``None``, or the platforms are equal.
+
+    XXX Needs compatibility checks for Linux and other unixy OSes.
+    """
+    if provided is None or required is None or provided == required:
+        # easy case
+        return True
+
+    # Mac OS X special cases
+    reqMac = macosVersionString.match(required)
+    if reqMac:
+        provMac = macosVersionString.match(provided)
+
+        # is this a Mac package?
+        if not provMac:
+            # this is backwards compatibility for packages built before
+            # setuptools 0.6. All packages built after this point will
+            # use the new macosx designation.
+            provDarwin = darwinVersionString.match(provided)
+            if provDarwin:
+                dversion = int(provDarwin.group(1))
+                macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2))
+                if dversion == 7 and macosversion >= "10.3" or \
+                        dversion == 8 and macosversion >= "10.4":
+                    return True
+            # egg isn't macosx or legacy darwin
+            return False
+
+        # are they the same major version and machine type?
+        if provMac.group(1) != reqMac.group(1) or \
+                provMac.group(3) != reqMac.group(3):
+            return False
+
+        # is the required OS major update >= the provided one?
+        if int(provMac.group(2)) > int(reqMac.group(2)):
+            return False
+
+        return True
+
+    # XXX Linux and other platforms' special cases should go here
+    return False
+
+
+def run_script(dist_spec, script_name):
+    """Locate distribution `dist_spec` and run its `script_name` script"""
+    ns = sys._getframe(1).f_globals
+    name = ns['__name__']
+    ns.clear()
+    ns['__name__'] = name
+    require(dist_spec)[0].run_script(script_name, ns)
+
+
+# backward compatibility
+run_main = run_script
+
+
+def get_distribution(dist):
+    """Return a current distribution object for a Requirement or string"""
+    if isinstance(dist, six.string_types):
+        dist = Requirement.parse(dist)
+    if isinstance(dist, Requirement):
+        dist = get_provider(dist)
+    if not isinstance(dist, Distribution):
+        raise TypeError("Expected string, Requirement, or Distribution", dist)
+    return dist
+
+
+def load_entry_point(dist, group, name):
+    """Return `name` entry point of `group` for `dist` or raise ImportError"""
+    return get_distribution(dist).load_entry_point(group, name)
+
+
+def get_entry_map(dist, group=None):
+    """Return the entry point map for `group`, or the full entry map"""
+    return get_distribution(dist).get_entry_map(group)
+
+
+def get_entry_info(dist, group, name):
+    """Return the EntryPoint object for `group`+`name`, or ``None``"""
+    return get_distribution(dist).get_entry_info(group, name)
+
+
+class IMetadataProvider:
+    def has_metadata(name):
+        """Does the package's distribution contain the named metadata?"""
+
+    def get_metadata(name):
+        """The named metadata resource as a string"""
+
+    def get_metadata_lines(name):
+        """Yield named metadata resource as list of non-blank non-comment lines
+
+       Leading and trailing whitespace is stripped from each line, and lines
+       with ``#`` as the first non-blank character are omitted."""
+
+    def metadata_isdir(name):
+        """Is the named metadata a directory?  (like ``os.path.isdir()``)"""
+
+    def metadata_listdir(name):
+        """List of metadata names in the directory (like ``os.listdir()``)"""
+
+    def run_script(script_name, namespace):
+        """Execute the named script in the supplied namespace dictionary"""
+
+
+class IResourceProvider(IMetadataProvider):
+    """An object that provides access to package resources"""
+
+    def get_resource_filename(manager, resource_name):
+        """Return a true filesystem path for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_stream(manager, resource_name):
+        """Return a readable file-like object for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_string(manager, resource_name):
+        """Return a string containing the contents of `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def has_resource(resource_name):
+        """Does the package contain the named resource?"""
+
+    def resource_isdir(resource_name):
+        """Is the named resource a directory?  (like ``os.path.isdir()``)"""
+
+    def resource_listdir(resource_name):
+        """List of resource names in the directory (like ``os.listdir()``)"""
+
+
+class WorkingSet(object):
+    """A collection of active distributions on sys.path (or a similar list)"""
+
+    def __init__(self, entries=None):
+        """Create working set from list of path entries (default=sys.path)"""
+        self.entries = []
+        self.entry_keys = {}
+        self.by_key = {}
+        self.callbacks = []
+
+        if entries is None:
+            entries = sys.path
+
+        for entry in entries:
+            self.add_entry(entry)
+
+    @classmethod
+    def _build_master(cls):
+        """
+        Prepare the master working set.
+        """
+        ws = cls()
+        try:
+            from __main__ import __requires__
+        except ImportError:
+            # The main program does not list any requirements
+            return ws
+
+        # ensure the requirements are met
+        try:
+            ws.require(__requires__)
+        except VersionConflict:
+            return cls._build_from_requirements(__requires__)
+
+        return ws
+
+    @classmethod
+    def _build_from_requirements(cls, req_spec):
+        """
+        Build a working set from a requirement spec. Rewrites sys.path.
+        """
+        # try it without defaults already on sys.path
+        # by starting with an empty path
+        ws = cls([])
+        reqs = parse_requirements(req_spec)
+        dists = ws.resolve(reqs, Environment())
+        for dist in dists:
+            ws.add(dist)
+
+        # add any missing entries from sys.path
+        for entry in sys.path:
+            if entry not in ws.entries:
+                ws.add_entry(entry)
+
+        # then copy back to sys.path
+        sys.path[:] = ws.entries
+        return ws
+
+    def add_entry(self, entry):
+        """Add a path item to ``.entries``, finding any distributions on it
+
+        ``find_distributions(entry, True)`` is used to find distributions
+        corresponding to the path entry, and they are added.  `entry` is
+        always appended to ``.entries``, even if it is already present.
+        (This is because ``sys.path`` can contain the same value more than
+        once, and the ``.entries`` of the ``sys.path`` WorkingSet should always
+        equal ``sys.path``.)
+        """
+        self.entry_keys.setdefault(entry, [])
+        self.entries.append(entry)
+        for dist in find_distributions(entry, True):
+            self.add(dist, entry, False)
+
+    def __contains__(self, dist):
+        """True if `dist` is the active distribution for its project"""
+        return self.by_key.get(dist.key) == dist
+
+    def find(self, req):
+        """Find a distribution matching requirement `req`
+
+        If there is an active distribution for the requested project, this
+        returns it as long as it meets the version requirement specified by
+        `req`.  But, if there is an active distribution for the project and it
+        does *not* meet the `req` requirement, ``VersionConflict`` is raised.
+        If there is no active distribution for the requested project, ``None``
+        is returned.
+        """
+        dist = self.by_key.get(req.key)
+        if dist is not None and dist not in req:
+            # XXX add more info
+            raise VersionConflict(dist, req)
+        return dist
+
+    def iter_entry_points(self, group, name=None):
+        """Yield entry point objects from `group` matching `name`
+
+        If `name` is None, yields all entry points in `group` from all
+        distributions in the working set, otherwise only ones matching
+        both `group` and `name` are yielded (in distribution order).
+        """
+        for dist in self:
+            entries = dist.get_entry_map(group)
+            if name is None:
+                for ep in entries.values():
+                    yield ep
+            elif name in entries:
+                yield entries[name]
+
+    def run_script(self, requires, script_name):
+        """Locate distribution for `requires` and run `script_name` script"""
+        ns = sys._getframe(1).f_globals
+        name = ns['__name__']
+        ns.clear()
+        ns['__name__'] = name
+        self.require(requires)[0].run_script(script_name, ns)
+
+    def __iter__(self):
+        """Yield distributions for non-duplicate projects in the working set
+
+        The yield order is the order in which the items' path entries were
+        added to the working set.
+        """
+        seen = {}
+        for item in self.entries:
+            if item not in self.entry_keys:
+                # workaround a cache issue
+                continue
+
+            for key in self.entry_keys[item]:
+                if key not in seen:
+                    seen[key] = 1
+                    yield self.by_key[key]
+
+    def add(self, dist, entry=None, insert=True, replace=False):
+        """Add `dist` to working set, associated with `entry`
+
+        If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
+        On exit from this routine, `entry` is added to the end of the working
+        set's ``.entries`` (if it wasn't already present).
+
+        `dist` is only added to the working set if it's for a project that
+        doesn't already have a distribution in the set, unless `replace=True`.
+        If it's added, any callbacks registered with the ``subscribe()`` method
+        will be called.
+        """
+        if insert:
+            dist.insert_on(self.entries, entry, replace=replace)
+
+        if entry is None:
+            entry = dist.location
+        keys = self.entry_keys.setdefault(entry, [])
+        keys2 = self.entry_keys.setdefault(dist.location, [])
+        if not replace and dist.key in self.by_key:
+            # ignore hidden distros
+            return
+
+        self.by_key[dist.key] = dist
+        if dist.key not in keys:
+            keys.append(dist.key)
+        if dist.key not in keys2:
+            keys2.append(dist.key)
+        self._added_new(dist)
+
+    def resolve(self, requirements, env=None, installer=None,
+            replace_conflicting=False):
+        """List all distributions needed to (recursively) meet `requirements`
+
+        `requirements` must be a sequence of ``Requirement`` objects.  `env`,
+        if supplied, should be an ``Environment`` instance.  If
+        not supplied, it defaults to all distributions available within any
+        entry or distribution in the working set.  `installer`, if supplied,
+        will be invoked with each requirement that cannot be met by an
+        already-installed distribution; it should return a ``Distribution`` or
+        ``None``.
+
+        Unless `replace_conflicting=True`, raises a VersionConflict exception if
+        any requirements are found on the path that have the correct name but
+        the wrong version.  Otherwise, if an `installer` is supplied it will be
+        invoked to obtain the correct version of the requirement and activate
+        it.
+        """
+
+        # set up the stack
+        requirements = list(requirements)[::-1]
+        # set of processed requirements
+        processed = {}
+        # key -> dist
+        best = {}
+        to_activate = []
+
+        req_extras = _ReqExtras()
+
+        # Mapping of requirement to set of distributions that required it;
+        # useful for reporting info about conflicts.
+        required_by = collections.defaultdict(set)
+
+        while requirements:
+            # process dependencies breadth-first
+            req = requirements.pop(0)
+            if req in processed:
+                # Ignore cyclic or redundant dependencies
+                continue
+
+            if not req_extras.markers_pass(req):
+                continue
+
+            dist = best.get(req.key)
+            if dist is None:
+                # Find the best distribution and add it to the map
+                dist = self.by_key.get(req.key)
+                if dist is None or (dist not in req and replace_conflicting):
+                    ws = self
+                    if env is None:
+                        if dist is None:
+                            env = Environment(self.entries)
+                        else:
+                            # Use an empty environment and workingset to avoid
+                            # any further conflicts with the conflicting
+                            # distribution
+                            env = Environment([])
+                            ws = WorkingSet([])
+                    dist = best[req.key] = env.best_match(req, ws, installer)
+                    if dist is None:
+                        requirers = required_by.get(req, None)
+                        raise DistributionNotFound(req, requirers)
+                to_activate.append(dist)
+            if dist not in req:
+                # Oops, the "best" so far conflicts with a dependency
+                dependent_req = required_by[req]
+                raise VersionConflict(dist, req).with_context(dependent_req)
+
+            # push the new requirements onto the stack
+            new_requirements = dist.requires(req.extras)[::-1]
+            requirements.extend(new_requirements)
+
+            # Register the new requirements needed by req
+            for new_requirement in new_requirements:
+                required_by[new_requirement].add(req.project_name)
+                req_extras[new_requirement] = req.extras
+
+            processed[req] = True
+
+        # return list of distros to activate
+        return to_activate
+
+    def find_plugins(self, plugin_env, full_env=None, installer=None,
+            fallback=True):
+        """Find all activatable distributions in `plugin_env`
+
+        Example usage::
+
+            distributions, errors = working_set.find_plugins(
+                Environment(plugin_dirlist)
+            )
+            # add plugins+libs to sys.path
+            map(working_set.add, distributions)
+            # display errors
+            print('Could not load', errors)
+
+        The `plugin_env` should be an ``Environment`` instance that contains
+        only distributions that are in the project's "plugin directory" or
+        directories. The `full_env`, if supplied, should be an ``Environment``
+        contains all currently-available distributions.  If `full_env` is not
+        supplied, one is created automatically from the ``WorkingSet`` this
+        method is called on, which will typically mean that every directory on
+        ``sys.path`` will be scanned for distributions.
+
+        `installer` is a standard installer callback as used by the
+        ``resolve()`` method. The `fallback` flag indicates whether we should
+        attempt to resolve older versions of a plugin if the newest version
+        cannot be resolved.
+
+        This method returns a 2-tuple: (`distributions`, `error_info`), where
+        `distributions` is a list of the distributions found in `plugin_env`
+        that were loadable, along with any other distributions that are needed
+        to resolve their dependencies.  `error_info` is a dictionary mapping
+        unloadable plugin distributions to an exception instance describing the
+        error that occurred. Usually this will be a ``DistributionNotFound`` or
+        ``VersionConflict`` instance.
+        """
+
+        plugin_projects = list(plugin_env)
+        # scan project names in alphabetic order
+        plugin_projects.sort()
+
+        error_info = {}
+        distributions = {}
+
+        if full_env is None:
+            env = Environment(self.entries)
+            env += plugin_env
+        else:
+            env = full_env + plugin_env
+
+        shadow_set = self.__class__([])
+        # put all our entries in shadow_set
+        list(map(shadow_set.add, self))
+
+        for project_name in plugin_projects:
+
+            for dist in plugin_env[project_name]:
+
+                req = [dist.as_requirement()]
+
+                try:
+                    resolvees = shadow_set.resolve(req, env, installer)
+
+                except ResolutionError as v:
+                    # save error info
+                    error_info[dist] = v
+                    if fallback:
+                        # try the next older version of project
+                        continue
+                    else:
+                        # give up on this project, keep going
+                        break
+
+                else:
+                    list(map(shadow_set.add, resolvees))
+                    distributions.update(dict.fromkeys(resolvees))
+
+                    # success, no need to try any more versions of this project
+                    break
+
+        distributions = list(distributions)
+        distributions.sort()
+
+        return distributions, error_info
+
+    def require(self, *requirements):
+        """Ensure that distributions matching `requirements` are activated
+
+        `requirements` must be a string or a (possibly-nested) sequence
+        thereof, specifying the distributions and versions required.  The
+        return value is a sequence of the distributions that needed to be
+        activated to fulfill the requirements; all relevant distributions are
+        included, even if they were already activated in this working set.
+        """
+        needed = self.resolve(parse_requirements(requirements))
+
+        for dist in needed:
+            self.add(dist)
+
+        return needed
+
+    def subscribe(self, callback, existing=True):
+        """Invoke `callback` for all distributions
+
+        If `existing=True` (default),
+        call on all existing ones, as well.
+        """
+        if callback in self.callbacks:
+            return
+        self.callbacks.append(callback)
+        if not existing:
+            return
+        for dist in self:
+            callback(dist)
+
+    def _added_new(self, dist):
+        for callback in self.callbacks:
+            callback(dist)
+
+    def __getstate__(self):
+        return (
+            self.entries[:], self.entry_keys.copy(), self.by_key.copy(),
+            self.callbacks[:]
+        )
+
+    def __setstate__(self, e_k_b_c):
+        entries, keys, by_key, callbacks = e_k_b_c
+        self.entries = entries[:]
+        self.entry_keys = keys.copy()
+        self.by_key = by_key.copy()
+        self.callbacks = callbacks[:]
+
+
+class _ReqExtras(dict):
+    """
+    Map each requirement to the extras that demanded it.
+    """
+
+    def markers_pass(self, req):
+        """
+        Evaluate markers for req against each extra that
+        demanded it.
+
+        Return False if the req has a marker and fails
+        evaluation. Otherwise, return True.
+        """
+        extra_evals = (
+            req.marker.evaluate({'extra': extra})
+            for extra in self.get(req, ()) + (None,)
+        )
+        return not req.marker or any(extra_evals)
+
+
+class Environment(object):
+    """Searchable snapshot of distributions on a search path"""
+
+    def __init__(self, search_path=None, platform=get_supported_platform(),
+            python=PY_MAJOR):
+        """Snapshot distributions available on a search path
+
+        Any distributions found on `search_path` are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.
+
+        `platform` is an optional string specifying the name of the platform
+        that platform-specific distributions must be compatible with.  If
+        unspecified, it defaults to the current platform.  `python` is an
+        optional string naming the desired version of Python (e.g. ``'3.3'``);
+        it defaults to the current version.
+
+        You may explicitly set `platform` (and/or `python`) to ``None`` if you
+        wish to map *all* distributions, not just those compatible with the
+        running platform or Python version.
+        """
+        self._distmap = {}
+        self.platform = platform
+        self.python = python
+        self.scan(search_path)
+
+    def can_add(self, dist):
+        """Is distribution `dist` acceptable for this environment?
+
+        The distribution must match the platform and python version
+        requirements specified when this environment was created, or False
+        is returned.
+        """
+        return (self.python is None or dist.py_version is None
+            or dist.py_version == self.python) \
+            and compatible_platforms(dist.platform, self.platform)
+
+    def remove(self, dist):
+        """Remove `dist` from the environment"""
+        self._distmap[dist.key].remove(dist)
+
+    def scan(self, search_path=None):
+        """Scan `search_path` for distributions usable in this environment
+
+        Any distributions found are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.  Only distributions conforming to
+        the platform/python version defined at initialization are added.
+        """
+        if search_path is None:
+            search_path = sys.path
+
+        for item in search_path:
+            for dist in find_distributions(item):
+                self.add(dist)
+
+    def __getitem__(self, project_name):
+        """Return a newest-to-oldest list of distributions for `project_name`
+
+        Uses case-insensitive `project_name` comparison, assuming all the
+        project's distributions use their project's name converted to all
+        lowercase as their key.
+
+        """
+        distribution_key = project_name.lower()
+        return self._distmap.get(distribution_key, [])
+
+    def add(self, dist):
+        """Add `dist` if we ``can_add()`` it and it has not already been added
+        """
+        if self.can_add(dist) and dist.has_version():
+            dists = self._distmap.setdefault(dist.key, [])
+            if dist not in dists:
+                dists.append(dist)
+                dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
+
+    def best_match(self, req, working_set, installer=None):
+        """Find distribution best matching `req` and usable on `working_set`
+
+        This calls the ``find(req)`` method of the `working_set` to see if a
+        suitable distribution is already active.  (This may raise
+        ``VersionConflict`` if an unsuitable version of the project is already
+        active in the specified `working_set`.)  If a suitable distribution
+        isn't active, this method returns the newest distribution in the
+        environment that meets the ``Requirement`` in `req`.  If no suitable
+        distribution is found, and `installer` is supplied, then the result of
+        calling the environment's ``obtain(req, installer)`` method will be
+        returned.
+        """
+        dist = working_set.find(req)
+        if dist is not None:
+            return dist
+        for dist in self[req.key]:
+            if dist in req:
+                return dist
+        # try to download/install
+        return self.obtain(req, installer)
+
+    def obtain(self, requirement, installer=None):
+        """Obtain a distribution matching `requirement` (e.g. via download)
+
+        Obtain a distro that matches requirement (e.g. via download).  In the
+        base ``Environment`` class, this routine just returns
+        ``installer(requirement)``, unless `installer` is None, in which case
+        None is returned instead.  This method is a hook that allows subclasses
+        to attempt other ways of obtaining a distribution before falling back
+        to the `installer` argument."""
+        if installer is not None:
+            return installer(requirement)
+
+    def __iter__(self):
+        """Yield the unique project names of the available distributions"""
+        for key in self._distmap.keys():
+            if self[key]:
+                yield key
+
+    def __iadd__(self, other):
+        """In-place addition of a distribution or environment"""
+        if isinstance(other, Distribution):
+            self.add(other)
+        elif isinstance(other, Environment):
+            for project in other:
+                for dist in other[project]:
+                    self.add(dist)
+        else:
+            raise TypeError("Can't add %r to environment" % (other,))
+        return self
+
+    def __add__(self, other):
+        """Add an environment or distribution to an environment"""
+        new = self.__class__([], platform=None, python=None)
+        for env in self, other:
+            new += env
+        return new
+
+
+# XXX backward compatibility
+AvailableDistributions = Environment
+
+
+class ExtractionError(RuntimeError):
+    """An error occurred extracting a resource
+
+    The following attributes are available from instances of this exception:
+
+    manager
+        The resource manager that raised this exception
+
+    cache_path
+        The base directory for resource extraction
+
+    original_error
+        The exception instance that caused extraction to fail
+    """
+
+
+class ResourceManager:
+    """Manage resource extraction and packages"""
+    extraction_path = None
+
+    def __init__(self):
+        self.cached_files = {}
+
+    def resource_exists(self, package_or_requirement, resource_name):
+        """Does the named resource exist?"""
+        return get_provider(package_or_requirement).has_resource(resource_name)
+
+    def resource_isdir(self, package_or_requirement, resource_name):
+        """Is the named resource an existing directory?"""
+        return get_provider(package_or_requirement).resource_isdir(
+            resource_name
+        )
+
+    def resource_filename(self, package_or_requirement, resource_name):
+        """Return a true filesystem path for specified resource"""
+        return get_provider(package_or_requirement).get_resource_filename(
+            self, resource_name
+        )
+
+    def resource_stream(self, package_or_requirement, resource_name):
+        """Return a readable file-like object for specified resource"""
+        return get_provider(package_or_requirement).get_resource_stream(
+            self, resource_name
+        )
+
+    def resource_string(self, package_or_requirement, resource_name):
+        """Return specified resource as a string"""
+        return get_provider(package_or_requirement).get_resource_string(
+            self, resource_name
+        )
+
+    def resource_listdir(self, package_or_requirement, resource_name):
+        """List the contents of the named resource directory"""
+        return get_provider(package_or_requirement).resource_listdir(
+            resource_name
+        )
+
+    def extraction_error(self):
+        """Give an error message for problems extracting file(s)"""
+
+        old_exc = sys.exc_info()[1]
+        cache_path = self.extraction_path or get_default_cache()
+
+        tmpl = textwrap.dedent("""
+            Can't extract file(s) to egg cache
+
+            The following error occurred while trying to extract file(s) to the Python egg
+            cache:
+
+              {old_exc}
+
+            The Python egg cache directory is currently set to:
+
+              {cache_path}
+
+            Perhaps your account does not have write access to this directory?  You can
+            change the cache directory by setting the PYTHON_EGG_CACHE environment
+            variable to point to an accessible directory.
+            """).lstrip()
+        err = ExtractionError(tmpl.format(**locals()))
+        err.manager = self
+        err.cache_path = cache_path
+        err.original_error = old_exc
+        raise err
+
+    def get_cache_path(self, archive_name, names=()):
+        """Return absolute location in cache for `archive_name` and `names`
+
+        The parent directory of the resulting path will be created if it does
+        not already exist.  `archive_name` should be the base filename of the
+        enclosing egg (which may not be the name of the enclosing zipfile!),
+        including its ".egg" extension.  `names`, if provided, should be a
+        sequence of path name parts "under" the egg's extraction location.
+
+        This method should only be called by resource providers that need to
+        obtain an extraction location, and only for names they intend to
+        extract, as it tracks the generated names for possible cleanup later.
+        """
+        extract_path = self.extraction_path or get_default_cache()
+        target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
+        try:
+            _bypass_ensure_directory(target_path)
+        except:
+            self.extraction_error()
+
+        self._warn_unsafe_extraction_path(extract_path)
+
+        self.cached_files[target_path] = 1
+        return target_path
+
+    @staticmethod
+    def _warn_unsafe_extraction_path(path):
+        """
+        If the default extraction path is overridden and set to an insecure
+        location, such as /tmp, it opens up an opportunity for an attacker to
+        replace an extracted file with an unauthorized payload. Warn the user
+        if a known insecure location is used.
+
+        See Distribute #375 for more details.
+        """
+        if os.name == 'nt' and not path.startswith(os.environ['windir']):
+            # On Windows, permissions are generally restrictive by default
+            #  and temp directories are not writable by other users, so
+            #  bypass the warning.
+            return
+        mode = os.stat(path).st_mode
+        if mode & stat.S_IWOTH or mode & stat.S_IWGRP:
+            msg = ("%s is writable by group/others and vulnerable to attack "
+                "when "
+                "used with get_resource_filename. Consider a more secure "
+                "location (set with .set_extraction_path or the "
+                "PYTHON_EGG_CACHE environment variable)." % path)
+            warnings.warn(msg, UserWarning)
+
+    def postprocess(self, tempname, filename):
+        """Perform any platform-specific postprocessing of `tempname`
+
+        This is where Mac header rewrites should be done; other platforms don't
+        have anything special they should do.
+
+        Resource providers should call this method ONLY after successfully
+        extracting a compressed resource.  They must NOT call it on resources
+        that are already in the filesystem.
+
+        `tempname` is the current (temporary) name of the file, and `filename`
+        is the name it will be renamed to by the caller after this routine
+        returns.
+        """
+
+        if os.name == 'posix':
+            # Make the resource executable
+            mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777
+            os.chmod(tempname, mode)
+
+    def set_extraction_path(self, path):
+        """Set the base path where resources will be extracted to, if needed.
+
+        If you do not call this routine before any extractions take place, the
+        path defaults to the return value of ``get_default_cache()``.  (Which
+        is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
+        platform-specific fallbacks.  See that routine's documentation for more
+        details.)
+
+        Resources are extracted to subdirectories of this path based upon
+        information given by the ``IResourceProvider``.  You may set this to a
+        temporary directory, but then you must call ``cleanup_resources()`` to
+        delete the extracted files when done.  There is no guarantee that
+        ``cleanup_resources()`` will be able to remove all extracted files.
+
+        (Note: you may not change the extraction path for a given resource
+        manager once resources have been extracted, unless you first call
+        ``cleanup_resources()``.)
+        """
+        if self.cached_files:
+            raise ValueError(
+                "Can't change extraction path, files already extracted"
+            )
+
+        self.extraction_path = path
+
+    def cleanup_resources(self, force=False):
+        """
+        Delete all extracted resource files and directories, returning a list
+        of the file and directory names that could not be successfully removed.
+        This function does not have any concurrency protection, so it should
+        generally only be called when the extraction path is a temporary
+        directory exclusive to a single process.  This method is not
+        automatically called; you must call it explicitly or register it as an
+        ``atexit`` function if you wish to ensure cleanup of a temporary
+        directory used for extractions.
+        """
+        # XXX
+
+
+def get_default_cache():
+    """
+    Return the ``PYTHON_EGG_CACHE`` environment variable
+    or a platform-relevant user cache dir for an app
+    named "Python-Eggs".
+    """
+    return (
+        os.environ.get('PYTHON_EGG_CACHE')
+        or appdirs.user_cache_dir(appname='Python-Eggs')
+    )
+
+
+def safe_name(name):
+    """Convert an arbitrary string to a standard distribution name
+
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub('[^A-Za-z0-9.]+', '-', name)
+
+
+def safe_version(version):
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(packaging.version.Version(version))
+    except packaging.version.InvalidVersion:
+        version = version.replace(' ', '.')
+        return re.sub('[^A-Za-z0-9.]+', '-', version)
+
+
+def safe_extra(extra):
+    """Convert an arbitrary string to a standard 'extra' name
+
+    Any runs of non-alphanumeric characters are replaced with a single '_',
+    and the result is always lowercased.
+    """
+    return re.sub('[^A-Za-z0-9.-]+', '_', extra).lower()
+
+
+def to_filename(name):
+    """Convert a project or version name to its filename-escaped form
+
+    Any '-' characters are currently replaced with '_'.
+    """
+    return name.replace('-', '_')
+
+
+def invalid_marker(text):
+    """
+    Validate text as a PEP 508 environment marker; return an exception
+    if invalid or False otherwise.
+    """
+    try:
+        evaluate_marker(text)
+    except SyntaxError as e:
+        e.filename = None
+        e.lineno = None
+        return e
+    return False
+
+
+def evaluate_marker(text, extra=None):
+    """
+    Evaluate a PEP 508 environment marker.
+    Return a boolean indicating the marker result in this environment.
+    Raise SyntaxError if marker is invalid.
+
+    This implementation uses the 'pyparsing' module.
+    """
+    try:
+        marker = packaging.markers.Marker(text)
+        return marker.evaluate()
+    except packaging.markers.InvalidMarker as e:
+        raise SyntaxError(e)
+
+
+class NullProvider:
+    """Try to implement resources and metadata for arbitrary PEP 302 loaders"""
+
+    egg_name = None
+    egg_info = None
+    loader = None
+
+    def __init__(self, module):
+        self.loader = getattr(module, '__loader__', None)
+        self.module_path = os.path.dirname(getattr(module, '__file__', ''))
+
+    def get_resource_filename(self, manager, resource_name):
+        return self._fn(self.module_path, resource_name)
+
+    def get_resource_stream(self, manager, resource_name):
+        return io.BytesIO(self.get_resource_string(manager, resource_name))
+
+    def get_resource_string(self, manager, resource_name):
+        return self._get(self._fn(self.module_path, resource_name))
+
+    def has_resource(self, resource_name):
+        return self._has(self._fn(self.module_path, resource_name))
+
+    def has_metadata(self, name):
+        return self.egg_info and self._has(self._fn(self.egg_info, name))
+
+    def get_metadata(self, name):
+        if not self.egg_info:
+            return ""
+        value = self._get(self._fn(self.egg_info, name))
+        return value.decode('utf-8') if six.PY3 else value
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+    def resource_isdir(self, resource_name):
+        return self._isdir(self._fn(self.module_path, resource_name))
+
+    def metadata_isdir(self, name):
+        return self.egg_info and self._isdir(self._fn(self.egg_info, name))
+
+    def resource_listdir(self, resource_name):
+        return self._listdir(self._fn(self.module_path, resource_name))
+
+    def metadata_listdir(self, name):
+        if self.egg_info:
+            return self._listdir(self._fn(self.egg_info, name))
+        return []
+
+    def run_script(self, script_name, namespace):
+        script = 'scripts/' + script_name
+        if not self.has_metadata(script):
+            raise ResolutionError("No script named %r" % script_name)
+        script_text = self.get_metadata(script).replace('\r\n', '\n')
+        script_text = script_text.replace('\r', '\n')
+        script_filename = self._fn(self.egg_info, script)
+        namespace['__file__'] = script_filename
+        if os.path.exists(script_filename):
+            source = open(script_filename).read()
+            code = compile(source, script_filename, 'exec')
+            exec(code, namespace, namespace)
+        else:
+            from linecache import cache
+            cache[script_filename] = (
+                len(script_text), 0, script_text.split('\n'), script_filename
+            )
+            script_code = compile(script_text, script_filename, 'exec')
+            exec(script_code, namespace, namespace)
+
+    def _has(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _isdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _listdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _fn(self, base, resource_name):
+        if resource_name:
+            return os.path.join(base, *resource_name.split('/'))
+        return base
+
+    def _get(self, path):
+        if hasattr(self.loader, 'get_data'):
+            return self.loader.get_data(path)
+        raise NotImplementedError(
+            "Can't perform this operation for loaders without 'get_data()'"
+        )
+
+
+register_loader_type(object, NullProvider)
+
+
+class EggProvider(NullProvider):
+    """Provider based on a virtual filesystem"""
+
+    def __init__(self, module):
+        NullProvider.__init__(self, module)
+        self._setup_prefix()
+
+    def _setup_prefix(self):
+        # we assume here that our metadata may be nested inside a "basket"
+        # of multiple eggs; that's why we use module_path instead of .archive
+        path = self.module_path
+        old = None
+        while path != old:
+            if _is_unpacked_egg(path):
+                self.egg_name = os.path.basename(path)
+                self.egg_info = os.path.join(path, 'EGG-INFO')
+                self.egg_root = path
+                break
+            old = path
+            path, base = os.path.split(path)
+
+
+class DefaultProvider(EggProvider):
+    """Provides access to package resources in the filesystem"""
+
+    def _has(self, path):
+        return os.path.exists(path)
+
+    def _isdir(self, path):
+        return os.path.isdir(path)
+
+    def _listdir(self, path):
+        return os.listdir(path)
+
+    def get_resource_stream(self, manager, resource_name):
+        return open(self._fn(self.module_path, resource_name), 'rb')
+
+    def _get(self, path):
+        with open(path, 'rb') as stream:
+            return stream.read()
+
+    @classmethod
+    def _register(cls):
+        loader_cls = getattr(importlib_machinery, 'SourceFileLoader',
+            type(None))
+        register_loader_type(loader_cls, cls)
+
+
+DefaultProvider._register()
+
+
+class EmptyProvider(NullProvider):
+    """Provider that returns nothing for all requests"""
+
+    _isdir = _has = lambda self, path: False
+    _get = lambda self, path: ''
+    _listdir = lambda self, path: []
+    module_path = None
+
+    def __init__(self):
+        pass
+
+
+empty_provider = EmptyProvider()
+
+
+class ZipManifests(dict):
+    """
+    zip manifest builder
+    """
+
+    @classmethod
+    def build(cls, path):
+        """
+        Build a dictionary similar to the zipimport directory
+        caches, except instead of tuples, store ZipInfo objects.
+
+        Use a platform-specific path separator (os.sep) for the path keys
+        for compatibility with pypy on Windows.
+        """
+        with ContextualZipFile(path) as zfile:
+            items = (
+                (
+                    name.replace('/', os.sep),
+                    zfile.getinfo(name),
+                )
+                for name in zfile.namelist()
+            )
+            return dict(items)
+
+    load = build
+
+
+class MemoizedZipManifests(ZipManifests):
+    """
+    Memoized zipfile manifests.
+    """
+    manifest_mod = collections.namedtuple('manifest_mod', 'manifest mtime')
+
+    def load(self, path):
+        """
+        Load a manifest at path or return a suitable manifest already loaded.
+        """
+        path = os.path.normpath(path)
+        mtime = os.stat(path).st_mtime
+
+        if path not in self or self[path].mtime != mtime:
+            manifest = self.build(path)
+            self[path] = self.manifest_mod(manifest, mtime)
+
+        return self[path].manifest
+
+
+class ContextualZipFile(zipfile.ZipFile):
+    """
+    Supplement ZipFile class to support context manager for Python 2.6
+    """
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        self.close()
+
+    def __new__(cls, *args, **kwargs):
+        """
+        Construct a ZipFile or ContextualZipFile as appropriate
+        """
+        if hasattr(zipfile.ZipFile, '__exit__'):
+            return zipfile.ZipFile(*args, **kwargs)
+        return super(ContextualZipFile, cls).__new__(cls)
+
+
+class ZipProvider(EggProvider):
+    """Resource support for zips and eggs"""
+
+    eagers = None
+    _zip_manifests = MemoizedZipManifests()
+
+    def __init__(self, module):
+        EggProvider.__init__(self, module)
+        self.zip_pre = self.loader.archive + os.sep
+
+    def _zipinfo_name(self, fspath):
+        # Convert a virtual filename (full path to file) into a zipfile subpath
+        # usable with the zipimport directory cache for our target archive
+        if fspath.startswith(self.zip_pre):
+            return fspath[len(self.zip_pre):]
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.zip_pre)
+        )
+
+    def _parts(self, zip_path):
+        # Convert a zipfile subpath into an egg-relative path part list.
+        # pseudo-fs path
+        fspath = self.zip_pre + zip_path
+        if fspath.startswith(self.egg_root + os.sep):
+            return fspath[len(self.egg_root) + 1:].split(os.sep)
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.egg_root)
+        )
+
+    @property
+    def zipinfo(self):
+        return self._zip_manifests.load(self.loader.archive)
+
+    def get_resource_filename(self, manager, resource_name):
+        if not self.egg_name:
+            raise NotImplementedError(
+                "resource_filename() only supported for .egg, not .zip"
+            )
+        # no need to lock for extraction, since we use temp names
+        zip_path = self._resource_to_zip(resource_name)
+        eagers = self._get_eager_resources()
+        if '/'.join(self._parts(zip_path)) in eagers:
+            for name in eagers:
+                self._extract_resource(manager, self._eager_to_zip(name))
+        return self._extract_resource(manager, zip_path)
+
+    @staticmethod
+    def _get_date_and_size(zip_stat):
+        size = zip_stat.file_size
+        # ymdhms+wday, yday, dst
+        date_time = zip_stat.date_time + (0, 0, -1)
+        # 1980 offset already done
+        timestamp = time.mktime(date_time)
+        return timestamp, size
+
+    def _extract_resource(self, manager, zip_path):
+
+        if zip_path in self._index():
+            for name in self._index()[zip_path]:
+                last = self._extract_resource(
+                    manager, os.path.join(zip_path, name)
+                )
+            # return the extracted directory name
+            return os.path.dirname(last)
+
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+
+        if not WRITE_SUPPORT:
+            raise IOError('"os.rename" and "os.unlink" are not supported '
+                          'on this platform')
+        try:
+
+            real_path = manager.get_cache_path(
+                self.egg_name, self._parts(zip_path)
+            )
+
+            if self._is_current(real_path, zip_path):
+                return real_path
+
+            outf, tmpnam = _mkstemp(".$extract", dir=os.path.dirname(real_path))
+            os.write(outf, self.loader.get_data(zip_path))
+            os.close(outf)
+            utime(tmpnam, (timestamp, timestamp))
+            manager.postprocess(tmpnam, real_path)
+
+            try:
+                rename(tmpnam, real_path)
+
+            except os.error:
+                if os.path.isfile(real_path):
+                    if self._is_current(real_path, zip_path):
+                        # the file became current since it was checked above,
+                        #  so proceed.
+                        return real_path
+                    # Windows, del old file and retry
+                    elif os.name == 'nt':
+                        unlink(real_path)
+                        rename(tmpnam, real_path)
+                        return real_path
+                raise
+
+        except os.error:
+            # report a user-friendly error
+            manager.extraction_error()
+
+        return real_path
+
+    def _is_current(self, file_path, zip_path):
+        """
+        Return True if the file_path is current for this zip_path
+        """
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+        if not os.path.isfile(file_path):
+            return False
+        stat = os.stat(file_path)
+        if stat.st_size != size or stat.st_mtime != timestamp:
+            return False
+        # check that the contents match
+        zip_contents = self.loader.get_data(zip_path)
+        with open(file_path, 'rb') as f:
+            file_contents = f.read()
+        return zip_contents == file_contents
+
+    def _get_eager_resources(self):
+        if self.eagers is None:
+            eagers = []
+            for name in ('native_libs.txt', 'eager_resources.txt'):
+                if self.has_metadata(name):
+                    eagers.extend(self.get_metadata_lines(name))
+            self.eagers = eagers
+        return self.eagers
+
+    def _index(self):
+        try:
+            return self._dirindex
+        except AttributeError:
+            ind = {}
+            for path in self.zipinfo:
+                parts = path.split(os.sep)
+                while parts:
+                    parent = os.sep.join(parts[:-1])
+                    if parent in ind:
+                        ind[parent].append(parts[-1])
+                        break
+                    else:
+                        ind[parent] = [parts.pop()]
+            self._dirindex = ind
+            return ind
+
+    def _has(self, fspath):
+        zip_path = self._zipinfo_name(fspath)
+        return zip_path in self.zipinfo or zip_path in self._index()
+
+    def _isdir(self, fspath):
+        return self._zipinfo_name(fspath) in self._index()
+
+    def _listdir(self, fspath):
+        return list(self._index().get(self._zipinfo_name(fspath), ()))
+
+    def _eager_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.egg_root, resource_name))
+
+    def _resource_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.module_path, resource_name))
+
+
+register_loader_type(zipimport.zipimporter, ZipProvider)
+
+
+class FileMetadata(EmptyProvider):
+    """Metadata handler for standalone PKG-INFO files
+
+    Usage::
+
+        metadata = FileMetadata("/path/to/PKG-INFO")
+
+    This provider rejects all data and metadata requests except for PKG-INFO,
+    which is treated as existing, and will be the contents of the file at
+    the provided location.
+    """
+
+    def __init__(self, path):
+        self.path = path
+
+    def has_metadata(self, name):
+        return name == 'PKG-INFO' and os.path.isfile(self.path)
+
+    def get_metadata(self, name):
+        if name != 'PKG-INFO':
+            raise KeyError("No metadata except PKG-INFO is available")
+
+        with io.open(self.path, encoding='utf-8', errors="replace") as f:
+            metadata = f.read()
+        self._warn_on_replacement(metadata)
+        return metadata
+
+    def _warn_on_replacement(self, metadata):
+        # Python 2.6 and 3.2 compat for: replacement_char = '�'
+        replacement_char = b'\xef\xbf\xbd'.decode('utf-8')
+        if replacement_char in metadata:
+            tmpl = "{self.path} could not be properly decoded in UTF-8"
+            msg = tmpl.format(**locals())
+            warnings.warn(msg)
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+
+class PathMetadata(DefaultProvider):
+    """Metadata provider for egg directories
+
+    Usage::
+
+        # Development eggs:
+
+        egg_info = "/path/to/PackageName.egg-info"
+        base_dir = os.path.dirname(egg_info)
+        metadata = PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        dist = Distribution(basedir, project_name=dist_name, metadata=metadata)
+
+        # Unpacked egg directories:
+
+        egg_path = "/path/to/PackageName-ver-pyver-etc.egg"
+        metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO'))
+        dist = Distribution.from_filename(egg_path, metadata=metadata)
+    """
+
+    def __init__(self, path, egg_info):
+        self.module_path = path
+        self.egg_info = egg_info
+
+
+class EggMetadata(ZipProvider):
+    """Metadata provider for .egg files"""
+
+    def __init__(self, importer):
+        """Create a metadata provider from a zipimporter"""
+
+        self.zip_pre = importer.archive + os.sep
+        self.loader = importer
+        if importer.prefix:
+            self.module_path = os.path.join(importer.archive, importer.prefix)
+        else:
+            self.module_path = importer.archive
+        self._setup_prefix()
+
+
+_declare_state('dict', _distribution_finders={})
+
+
+def register_finder(importer_type, distribution_finder):
+    """Register `distribution_finder` to find distributions in sys.path items
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `distribution_finder` is a callable that, passed a path
+    item and the importer instance, yields ``Distribution`` instances found on
+    that path item.  See ``pkg_resources.find_on_path`` for an example."""
+    _distribution_finders[importer_type] = distribution_finder
+
+
+def find_distributions(path_item, only=False):
+    """Yield distributions accessible via `path_item`"""
+    importer = get_importer(path_item)
+    finder = _find_adapter(_distribution_finders, importer)
+    return finder(importer, path_item, only)
+
+
+def find_eggs_in_zip(importer, path_item, only=False):
+    """
+    Find eggs in zip files; possibly multiple nested eggs.
+    """
+    if importer.archive.endswith('.whl'):
+        # wheels are not supported with this finder
+        # they don't have PKG-INFO metadata, and won't ever contain eggs
+        return
+    metadata = EggMetadata(importer)
+    if metadata.has_metadata('PKG-INFO'):
+        yield Distribution.from_filename(path_item, metadata=metadata)
+    if only:
+        # don't yield nested distros
+        return
+    for subitem in metadata.resource_listdir('/'):
+        if _is_unpacked_egg(subitem):
+            subpath = os.path.join(path_item, subitem)
+            for dist in find_eggs_in_zip(zipimport.zipimporter(subpath), subpath):
+                yield dist
+
+
+register_finder(zipimport.zipimporter, find_eggs_in_zip)
+
+
+def find_nothing(importer, path_item, only=False):
+    return ()
+
+
+register_finder(object, find_nothing)
+
+
+def _by_version_descending(names):
+    """
+    Given a list of filenames, return them in descending order
+    by version number.
+
+    >>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg'
+    >>> _by_version_descending(names)
+    ['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg']
+    """
+    def _by_version(name):
+        """
+        Parse each component of the filename
+        """
+        name, ext = os.path.splitext(name)
+        parts = itertools.chain(name.split('-'), [ext])
+        return [packaging.version.parse(part) for part in parts]
+
+    return sorted(names, key=_by_version, reverse=True)
+
+
+def find_on_path(importer, path_item, only=False):
+    """Yield distributions accessible on a sys.path directory"""
+    path_item = _normalize_cached(path_item)
+
+    if os.path.isdir(path_item) and os.access(path_item, os.R_OK):
+        if _is_unpacked_egg(path_item):
+            yield Distribution.from_filename(
+                path_item, metadata=PathMetadata(
+                    path_item, os.path.join(path_item, 'EGG-INFO')
+                )
+            )
+        else:
+            # scan for .egg and .egg-info in directory
+            path_item_entries = _by_version_descending(os.listdir(path_item))
+            for entry in path_item_entries:
+                lower = entry.lower()
+                if lower.endswith('.egg-info') or lower.endswith('.dist-info'):
+                    fullpath = os.path.join(path_item, entry)
+                    if os.path.isdir(fullpath):
+                        # egg-info directory, allow getting metadata
+                        if len(os.listdir(fullpath)) == 0:
+                            # Empty egg directory, skip.
+                            continue
+                        metadata = PathMetadata(path_item, fullpath)
+                    else:
+                        metadata = FileMetadata(fullpath)
+                    yield Distribution.from_location(
+                        path_item, entry, metadata, precedence=DEVELOP_DIST
+                    )
+                elif not only and _is_unpacked_egg(entry):
+                    dists = find_distributions(os.path.join(path_item, entry))
+                    for dist in dists:
+                        yield dist
+                elif not only and lower.endswith('.egg-link'):
+                    with open(os.path.join(path_item, entry)) as entry_file:
+                        entry_lines = entry_file.readlines()
+                    for line in entry_lines:
+                        if not line.strip():
+                            continue
+                        path = os.path.join(path_item, line.rstrip())
+                        dists = find_distributions(path)
+                        for item in dists:
+                            yield item
+                        break
+
+
+register_finder(pkgutil.ImpImporter, find_on_path)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_finder(importlib_machinery.FileFinder, find_on_path)
+
+_declare_state('dict', _namespace_handlers={})
+_declare_state('dict', _namespace_packages={})
+
+
+def register_namespace_handler(importer_type, namespace_handler):
+    """Register `namespace_handler` to declare namespace packages
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `namespace_handler` is a callable like this::
+
+        def namespace_handler(importer, path_entry, moduleName, module):
+            # return a path_entry to use for child packages
+
+    Namespace handlers are only called if the importer object has already
+    agreed that it can handle the relevant path item, and they should only
+    return a subpath if the module __path__ does not already contain an
+    equivalent subpath.  For an example namespace handler, see
+    ``pkg_resources.file_ns_handler``.
+    """
+    _namespace_handlers[importer_type] = namespace_handler
+
+
+def _handle_ns(packageName, path_item):
+    """Ensure that named package includes a subpath of path_item (if needed)"""
+
+    importer = get_importer(path_item)
+    if importer is None:
+        return None
+    loader = importer.find_module(packageName)
+    if loader is None:
+        return None
+    module = sys.modules.get(packageName)
+    if module is None:
+        module = sys.modules[packageName] = types.ModuleType(packageName)
+        module.__path__ = []
+        _set_parent_ns(packageName)
+    elif not hasattr(module, '__path__'):
+        raise TypeError("Not a package:", packageName)
+    handler = _find_adapter(_namespace_handlers, importer)
+    subpath = handler(importer, path_item, packageName, module)
+    if subpath is not None:
+        path = module.__path__
+        path.append(subpath)
+        loader.load_module(packageName)
+        _rebuild_mod_path(path, packageName, module)
+    return subpath
+
+
+def _rebuild_mod_path(orig_path, package_name, module):
+    """
+    Rebuild module.__path__ ensuring that all entries are ordered
+    corresponding to their sys.path order
+    """
+    sys_path = [_normalize_cached(p) for p in sys.path]
+
+    def safe_sys_path_index(entry):
+        """
+        Workaround for #520 and #513.
+        """
+        try:
+            return sys_path.index(entry)
+        except ValueError:
+            return float('inf')
+
+    def position_in_sys_path(path):
+        """
+        Return the ordinal of the path based on its position in sys.path
+        """
+        path_parts = path.split(os.sep)
+        module_parts = package_name.count('.') + 1
+        parts = path_parts[:-module_parts]
+        return safe_sys_path_index(_normalize_cached(os.sep.join(parts)))
+
+    orig_path.sort(key=position_in_sys_path)
+    module.__path__[:] = [_normalize_cached(p) for p in orig_path]
+
+
+def declare_namespace(packageName):
+    """Declare that package 'packageName' is a namespace package"""
+
+    _imp.acquire_lock()
+    try:
+        if packageName in _namespace_packages:
+            return
+
+        path, parent = sys.path, None
+        if '.' in packageName:
+            parent = '.'.join(packageName.split('.')[:-1])
+            declare_namespace(parent)
+            if parent not in _namespace_packages:
+                __import__(parent)
+            try:
+                path = sys.modules[parent].__path__
+            except AttributeError:
+                raise TypeError("Not a package:", parent)
+
+        # Track what packages are namespaces, so when new path items are added,
+        # they can be updated
+        _namespace_packages.setdefault(parent, []).append(packageName)
+        _namespace_packages.setdefault(packageName, [])
+
+        for path_item in path:
+            # Ensure all the parent's path items are reflected in the child,
+            # if they apply
+            _handle_ns(packageName, path_item)
+
+    finally:
+        _imp.release_lock()
+
+
+def fixup_namespace_packages(path_item, parent=None):
+    """Ensure that previously-declared namespace packages include path_item"""
+    _imp.acquire_lock()
+    try:
+        for package in _namespace_packages.get(parent, ()):
+            subpath = _handle_ns(package, path_item)
+            if subpath:
+                fixup_namespace_packages(subpath, package)
+    finally:
+        _imp.release_lock()
+
+
+def file_ns_handler(importer, path_item, packageName, module):
+    """Compute an ns-package subpath for a filesystem or zipfile importer"""
+
+    subpath = os.path.join(path_item, packageName.split('.')[-1])
+    normalized = _normalize_cached(subpath)
+    for item in module.__path__:
+        if _normalize_cached(item) == normalized:
+            break
+    else:
+        # Only return the path if it's not already there
+        return subpath
+
+
+register_namespace_handler(pkgutil.ImpImporter, file_ns_handler)
+register_namespace_handler(zipimport.zipimporter, file_ns_handler)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_namespace_handler(importlib_machinery.FileFinder, file_ns_handler)
+
+
+def null_ns_handler(importer, path_item, packageName, module):
+    return None
+
+
+register_namespace_handler(object, null_ns_handler)
+
+
+def normalize_path(filename):
+    """Normalize a file/dir name for comparison purposes"""
+    return os.path.normcase(os.path.realpath(filename))
+
+
+def _normalize_cached(filename, _cache={}):
+    try:
+        return _cache[filename]
+    except KeyError:
+        _cache[filename] = result = normalize_path(filename)
+        return result
+
+
+def _is_unpacked_egg(path):
+    """
+    Determine if given path appears to be an unpacked egg.
+    """
+    return (
+        path.lower().endswith('.egg')
+    )
+
+
+def _set_parent_ns(packageName):
+    parts = packageName.split('.')
+    name = parts.pop()
+    if parts:
+        parent = '.'.join(parts)
+        setattr(sys.modules[parent], name, sys.modules[packageName])
+
+
+def yield_lines(strs):
+    """Yield non-empty/non-comment lines of a string or sequence"""
+    if isinstance(strs, six.string_types):
+        for s in strs.splitlines():
+            s = s.strip()
+            # skip blank lines/comments
+            if s and not s.startswith('#'):
+                yield s
+    else:
+        for ss in strs:
+            for s in yield_lines(ss):
+                yield s
+
+
+MODULE = re.compile(r"\w+(\.\w+)*$").match
+EGG_NAME = re.compile(
+    r"""
+    (?P<name>[^-]+) (
+        -(?P<ver>[^-]+) (
+            -py(?P<pyver>[^-]+) (
+                -(?P<plat>.+)
+            )?
+        )?
+    )?
+    """,
+    re.VERBOSE | re.IGNORECASE,
+).match
+
+
+class EntryPoint(object):
+    """Object representing an advertised importable object"""
+
+    def __init__(self, name, module_name, attrs=(), extras=(), dist=None):
+        if not MODULE(module_name):
+            raise ValueError("Invalid module name", module_name)
+        self.name = name
+        self.module_name = module_name
+        self.attrs = tuple(attrs)
+        self.extras = Requirement.parse(("x[%s]" % ','.join(extras))).extras
+        self.dist = dist
+
+    def __str__(self):
+        s = "%s = %s" % (self.name, self.module_name)
+        if self.attrs:
+            s += ':' + '.'.join(self.attrs)
+        if self.extras:
+            s += ' [%s]' % ','.join(self.extras)
+        return s
+
+    def __repr__(self):
+        return "EntryPoint.parse(%r)" % str(self)
+
+    def load(self, require=True, *args, **kwargs):
+        """
+        Require packages for this EntryPoint, then resolve it.
+        """
+        if not require or args or kwargs:
+            warnings.warn(
+                "Parameters to load are deprecated.  Call .resolve and "
+                ".require separately.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        if require:
+            self.require(*args, **kwargs)
+        return self.resolve()
+
+    def resolve(self):
+        """
+        Resolve the entry point from its module and attrs.
+        """
+        module = __import__(self.module_name, fromlist=['__name__'], level=0)
+        try:
+            return functools.reduce(getattr, self.attrs, module)
+        except AttributeError as exc:
+            raise ImportError(str(exc))
+
+    def require(self, env=None, installer=None):
+        if self.extras and not self.dist:
+            raise UnknownExtra("Can't require() without a distribution", self)
+        reqs = self.dist.requires(self.extras)
+        items = working_set.resolve(reqs, env, installer)
+        list(map(working_set.add, items))
+
+    pattern = re.compile(
+        r'\s*'
+        r'(?P<name>.+?)\s*'
+        r'=\s*'
+        r'(?P<module>[\w.]+)\s*'
+        r'(:\s*(?P<attr>[\w.]+))?\s*'
+        r'(?P<extras>\[.*\])?\s*$'
+    )
+
+    @classmethod
+    def parse(cls, src, dist=None):
+        """Parse a single entry point from string `src`
+
+        Entry point syntax follows the form::
+
+            name = some.module:some.attr [extra1, extra2]
+
+        The entry name and module name are required, but the ``:attrs`` and
+        ``[extras]`` parts are optional
+        """
+        m = cls.pattern.match(src)
+        if not m:
+            msg = "EntryPoint must be in 'name=module:attrs [extras]' format"
+            raise ValueError(msg, src)
+        res = m.groupdict()
+        extras = cls._parse_extras(res['extras'])
+        attrs = res['attr'].split('.') if res['attr'] else ()
+        return cls(res['name'], res['module'], attrs, extras, dist)
+
+    @classmethod
+    def _parse_extras(cls, extras_spec):
+        if not extras_spec:
+            return ()
+        req = Requirement.parse('x' + extras_spec)
+        if req.specs:
+            raise ValueError()
+        return req.extras
+
+    @classmethod
+    def parse_group(cls, group, lines, dist=None):
+        """Parse an entry point group"""
+        if not MODULE(group):
+            raise ValueError("Invalid group name", group)
+        this = {}
+        for line in yield_lines(lines):
+            ep = cls.parse(line, dist)
+            if ep.name in this:
+                raise ValueError("Duplicate entry point", group, ep.name)
+            this[ep.name] = ep
+        return this
+
+    @classmethod
+    def parse_map(cls, data, dist=None):
+        """Parse a map of entry point groups"""
+        if isinstance(data, dict):
+            data = data.items()
+        else:
+            data = split_sections(data)
+        maps = {}
+        for group, lines in data:
+            if group is None:
+                if not lines:
+                    continue
+                raise ValueError("Entry points must be listed in groups")
+            group = group.strip()
+            if group in maps:
+                raise ValueError("Duplicate group name", group)
+            maps[group] = cls.parse_group(group, lines, dist)
+        return maps
+
+
+def _remove_md5_fragment(location):
+    if not location:
+        return ''
+    parsed = urllib.parse.urlparse(location)
+    if parsed[-1].startswith('md5='):
+        return urllib.parse.urlunparse(parsed[:-1] + ('',))
+    return location
+
+
+def _version_from_file(lines):
+    """
+    Given an iterable of lines from a Metadata file, return
+    the value of the Version field, if present, or None otherwise.
+    """
+    is_version_line = lambda line: line.lower().startswith('version:')
+    version_lines = filter(is_version_line, lines)
+    line = next(iter(version_lines), '')
+    _, _, value = line.partition(':')
+    return safe_version(value.strip()) or None
+
+
+class Distribution(object):
+    """Wrap an actual or potential sys.path entry w/metadata"""
+    PKG_INFO = 'PKG-INFO'
+
+    def __init__(self, location=None, metadata=None, project_name=None,
+            version=None, py_version=PY_MAJOR, platform=None,
+            precedence=EGG_DIST):
+        self.project_name = safe_name(project_name or 'Unknown')
+        if version is not None:
+            self._version = safe_version(version)
+        self.py_version = py_version
+        self.platform = platform
+        self.location = location
+        self.precedence = precedence
+        self._provider = metadata or empty_provider
+
+    @classmethod
+    def from_location(cls, location, basename, metadata=None, **kw):
+        project_name, version, py_version, platform = [None] * 4
+        basename, ext = os.path.splitext(basename)
+        if ext.lower() in _distributionImpl:
+            cls = _distributionImpl[ext.lower()]
+
+            match = EGG_NAME(basename)
+            if match:
+                project_name, version, py_version, platform = match.group(
+                    'name', 'ver', 'pyver', 'plat'
+                )
+        return cls(
+            location, metadata, project_name=project_name, version=version,
+            py_version=py_version, platform=platform, **kw
+        )._reload_version()
+
+    def _reload_version(self):
+        return self
+
+    @property
+    def hashcmp(self):
+        return (
+            self.parsed_version,
+            self.precedence,
+            self.key,
+            _remove_md5_fragment(self.location),
+            self.py_version or '',
+            self.platform or '',
+        )
+
+    def __hash__(self):
+        return hash(self.hashcmp)
+
+    def __lt__(self, other):
+        return self.hashcmp < other.hashcmp
+
+    def __le__(self, other):
+        return self.hashcmp <= other.hashcmp
+
+    def __gt__(self, other):
+        return self.hashcmp > other.hashcmp
+
+    def __ge__(self, other):
+        return self.hashcmp >= other.hashcmp
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            # It's not a Distribution, so they are not equal
+            return False
+        return self.hashcmp == other.hashcmp
+
+    def __ne__(self, other):
+        return not self == other
+
+    # These properties have to be lazy so that we don't have to load any
+    # metadata until/unless it's actually needed.  (i.e., some distributions
+    # may not know their name or version without loading PKG-INFO)
+
+    @property
+    def key(self):
+        try:
+            return self._key
+        except AttributeError:
+            self._key = key = self.project_name.lower()
+            return key
+
+    @property
+    def parsed_version(self):
+        if not hasattr(self, "_parsed_version"):
+            self._parsed_version = parse_version(self.version)
+
+        return self._parsed_version
+
+    def _warn_legacy_version(self):
+        LV = packaging.version.LegacyVersion
+        is_legacy = isinstance(self._parsed_version, LV)
+        if not is_legacy:
+            return
+
+        # While an empty version is technically a legacy version and
+        # is not a valid PEP 440 version, it's also unlikely to
+        # actually come from someone and instead it is more likely that
+        # it comes from setuptools attempting to parse a filename and
+        # including it in the list. So for that we'll gate this warning
+        # on if the version is anything at all or not.
+        if not self.version:
+            return
+
+        tmpl = textwrap.dedent("""
+            '{project_name} ({version})' is being parsed as a legacy,
+            non PEP 440,
+            version. You may find odd behavior and sort order.
+            In particular it will be sorted as less than 0.0. It
+            is recommended to migrate to PEP 440 compatible
+            versions.
+            """).strip().replace('\n', ' ')
+
+        warnings.warn(tmpl.format(**vars(self)), PEP440Warning)
+
+    @property
+    def version(self):
+        try:
+            return self._version
+        except AttributeError:
+            version = _version_from_file(self._get_metadata(self.PKG_INFO))
+            if version is None:
+                tmpl = "Missing 'Version:' header and/or %s file"
+                raise ValueError(tmpl % self.PKG_INFO, self)
+            return version
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            dm = self.__dep_map = {None: []}
+            for name in 'requires.txt', 'depends.txt':
+                for extra, reqs in split_sections(self._get_metadata(name)):
+                    if extra:
+                        if ':' in extra:
+                            extra, marker = extra.split(':', 1)
+                            if invalid_marker(marker):
+                                # XXX warn
+                                reqs = []
+                            elif not evaluate_marker(marker):
+                                reqs = []
+                        extra = safe_extra(extra) or None
+                    dm.setdefault(extra, []).extend(parse_requirements(reqs))
+            return dm
+
+    def requires(self, extras=()):
+        """List of Requirements needed for this distro if `extras` are used"""
+        dm = self._dep_map
+        deps = []
+        deps.extend(dm.get(None, ()))
+        for ext in extras:
+            try:
+                deps.extend(dm[safe_extra(ext)])
+            except KeyError:
+                raise UnknownExtra(
+                    "%s has no such extra feature %r" % (self, ext)
+                )
+        return deps
+
+    def _get_metadata(self, name):
+        if self.has_metadata(name):
+            for line in self.get_metadata_lines(name):
+                yield line
+
+    def activate(self, path=None, replace=False):
+        """Ensure distribution is importable on `path` (default=sys.path)"""
+        if path is None:
+            path = sys.path
+        self.insert_on(path, replace=replace)
+        if path is sys.path:
+            fixup_namespace_packages(self.location)
+            for pkg in self._get_metadata('namespace_packages.txt'):
+                if pkg in sys.modules:
+                    declare_namespace(pkg)
+
+    def egg_name(self):
+        """Return what this distribution's standard .egg filename should be"""
+        filename = "%s-%s-py%s" % (
+            to_filename(self.project_name), to_filename(self.version),
+            self.py_version or PY_MAJOR
+        )
+
+        if self.platform:
+            filename += '-' + self.platform
+        return filename
+
+    def __repr__(self):
+        if self.location:
+            return "%s (%s)" % (self, self.location)
+        else:
+            return str(self)
+
+    def __str__(self):
+        try:
+            version = getattr(self, 'version', None)
+        except ValueError:
+            version = None
+        version = version or "[unknown version]"
+        return "%s %s" % (self.project_name, version)
+
+    def __getattr__(self, attr):
+        """Delegate all unrecognized public attributes to .metadata provider"""
+        if attr.startswith('_'):
+            raise AttributeError(attr)
+        return getattr(self._provider, attr)
+
+    @classmethod
+    def from_filename(cls, filename, metadata=None, **kw):
+        return cls.from_location(
+            _normalize_cached(filename), os.path.basename(filename), metadata,
+            **kw
+        )
+
+    def as_requirement(self):
+        """Return a ``Requirement`` that matches this distribution exactly"""
+        if isinstance(self.parsed_version, packaging.version.Version):
+            spec = "%s==%s" % (self.project_name, self.parsed_version)
+        else:
+            spec = "%s===%s" % (self.project_name, self.parsed_version)
+
+        return Requirement.parse(spec)
+
+    def load_entry_point(self, group, name):
+        """Return the `name` entry point of `group` or raise ImportError"""
+        ep = self.get_entry_info(group, name)
+        if ep is None:
+            raise ImportError("Entry point %r not found" % ((group, name),))
+        return ep.load()
+
+    def get_entry_map(self, group=None):
+        """Return the entry point map for `group`, or the full entry map"""
+        try:
+            ep_map = self._ep_map
+        except AttributeError:
+            ep_map = self._ep_map = EntryPoint.parse_map(
+                self._get_metadata('entry_points.txt'), self
+            )
+        if group is not None:
+            return ep_map.get(group, {})
+        return ep_map
+
+    def get_entry_info(self, group, name):
+        """Return the EntryPoint object for `group`+`name`, or ``None``"""
+        return self.get_entry_map(group).get(name)
+
+    def insert_on(self, path, loc=None, replace=False):
+        """Ensure self.location is on path
+
+        If replace=False (default):
+            - If location is already in path anywhere, do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent.
+              - Else: add to the end of path.
+        If replace=True:
+            - If location is already on path anywhere (not eggs)
+              or higher priority than its parent (eggs)
+              do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent,
+                removing any lower-priority entries.
+              - Else: add it to the front of path.
+        """
+
+        loc = loc or self.location
+        if not loc:
+            return
+
+        nloc = _normalize_cached(loc)
+        bdir = os.path.dirname(nloc)
+        npath = [(p and _normalize_cached(p) or p) for p in path]
+
+        for p, item in enumerate(npath):
+            if item == nloc:
+                if replace:
+                    break
+                else:
+                    # don't modify path (even removing duplicates) if found and not replace
+                    return
+            elif item == bdir and self.precedence == EGG_DIST:
+                # if it's an .egg, give it precedence over its directory
+                # UNLESS it's already been added to sys.path and replace=False
+                if (not replace) and nloc in npath[p:]:
+                    return
+                if path is sys.path:
+                    self.check_version_conflict()
+                path.insert(p, loc)
+                npath.insert(p, nloc)
+                break
+        else:
+            if path is sys.path:
+                self.check_version_conflict()
+            if replace:
+                path.insert(0, loc)
+            else:
+                path.append(loc)
+            return
+
+        # p is the spot where we found or inserted loc; now remove duplicates
+        while True:
+            try:
+                np = npath.index(nloc, p + 1)
+            except ValueError:
+                break
+            else:
+                del npath[np], path[np]
+                # ha!
+                p = np
+
+        return
+
+    def check_version_conflict(self):
+        if self.key == 'setuptools':
+            # ignore the inevitable setuptools self-conflicts  :(
+            return
+
+        nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt'))
+        loc = normalize_path(self.location)
+        for modname in self._get_metadata('top_level.txt'):
+            if (modname not in sys.modules or modname in nsp
+                    or modname in _namespace_packages):
+                continue
+            if modname in ('pkg_resources', 'setuptools', 'site'):
+                continue
+            fn = getattr(sys.modules[modname], '__file__', None)
+            if fn and (normalize_path(fn).startswith(loc) or
+                       fn.startswith(self.location)):
+                continue
+            issue_warning(
+                "Module %s was already imported from %s, but %s is being added"
+                " to sys.path" % (modname, fn, self.location),
+            )
+
+    def has_version(self):
+        try:
+            self.version
+        except ValueError:
+            issue_warning("Unbuilt egg for " + repr(self))
+            return False
+        return True
+
+    def clone(self, **kw):
+        """Copy this distribution, substituting in any changed keyword args"""
+        names = 'project_name version py_version platform location precedence'
+        for attr in names.split():
+            kw.setdefault(attr, getattr(self, attr, None))
+        kw.setdefault('metadata', self._provider)
+        return self.__class__(**kw)
+
+    @property
+    def extras(self):
+        return [dep for dep in self._dep_map if dep]
+
+
+class EggInfoDistribution(Distribution):
+    def _reload_version(self):
+        """
+        Packages installed by distutils (e.g. numpy or scipy),
+        which uses an old safe_version, and so
+        their version numbers can get mangled when
+        converted to filenames (e.g., 1.11.0.dev0+2329eae to
+        1.11.0.dev0_2329eae). These distributions will not be
+        parsed properly
+        downstream by Distribution and safe_version, so
+        take an extra step and try to get the version number from
+        the metadata file itself instead of the filename.
+        """
+        md_version = _version_from_file(self._get_metadata(self.PKG_INFO))
+        if md_version:
+            self._version = md_version
+        return self
+
+
+class DistInfoDistribution(Distribution):
+    """Wrap an actual or potential sys.path entry w/metadata, .dist-info style"""
+    PKG_INFO = 'METADATA'
+    EQEQ = re.compile(r"([\(,])\s*(\d.*?)\s*([,\)])")
+
+    @property
+    def _parsed_pkg_info(self):
+        """Parse and cache metadata"""
+        try:
+            return self._pkg_info
+        except AttributeError:
+            metadata = self.get_metadata(self.PKG_INFO)
+            self._pkg_info = email.parser.Parser().parsestr(metadata)
+            return self._pkg_info
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            self.__dep_map = self._compute_dependencies()
+            return self.__dep_map
+
+    def _compute_dependencies(self):
+        """Recompute this distribution's dependencies."""
+        dm = self.__dep_map = {None: []}
+
+        reqs = []
+        # Including any condition expressions
+        for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
+            reqs.extend(parse_requirements(req))
+
+        def reqs_for_extra(extra):
+            for req in reqs:
+                if not req.marker or req.marker.evaluate({'extra': extra}):
+                    yield req
+
+        common = frozenset(reqs_for_extra(None))
+        dm[None].extend(common)
+
+        for extra in self._parsed_pkg_info.get_all('Provides-Extra') or []:
+            s_extra = safe_extra(extra.strip())
+            dm[s_extra] = list(frozenset(reqs_for_extra(extra)) - common)
+
+        return dm
+
+
+_distributionImpl = {
+    '.egg': Distribution,
+    '.egg-info': EggInfoDistribution,
+    '.dist-info': DistInfoDistribution,
+    }
+
+
+def issue_warning(*args, **kw):
+    level = 1
+    g = globals()
+    try:
+        # find the first stack frame that is *not* code in
+        # the pkg_resources module, to use for the warning
+        while sys._getframe(level).f_globals is g:
+            level += 1
+    except ValueError:
+        pass
+    warnings.warn(stacklevel=level + 1, *args, **kw)
+
+
+class RequirementParseError(ValueError):
+    def __str__(self):
+        return ' '.join(self.args)
+
+
+def parse_requirements(strs):
+    """Yield ``Requirement`` objects for each specification in `strs`
+
+    `strs` must be a string, or a (possibly-nested) iterable thereof.
+    """
+    # create a steppable iterator, so we can handle \-continuations
+    lines = iter(yield_lines(strs))
+
+    for line in lines:
+        # Drop comments -- a hash without a space may be in a URL.
+        if ' #' in line:
+            line = line[:line.find(' #')]
+        # If there is a line continuation, drop it, and append the next line.
+        if line.endswith('\\'):
+            line = line[:-2].strip()
+            line += next(lines)
+        yield Requirement(line)
+
+
+class Requirement(packaging.requirements.Requirement):
+    def __init__(self, requirement_string):
+        """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!"""
+        try:
+            super(Requirement, self).__init__(requirement_string)
+        except packaging.requirements.InvalidRequirement as e:
+            raise RequirementParseError(str(e))
+        self.unsafe_name = self.name
+        project_name = safe_name(self.name)
+        self.project_name, self.key = project_name, project_name.lower()
+        self.specs = [
+            (spec.operator, spec.version) for spec in self.specifier]
+        self.extras = tuple(map(safe_extra, self.extras))
+        self.hashCmp = (
+            self.key,
+            self.specifier,
+            frozenset(self.extras),
+            str(self.marker) if self.marker else None,
+        )
+        self.__hash = hash(self.hashCmp)
+
+    def __eq__(self, other):
+        return (
+            isinstance(other, Requirement) and
+            self.hashCmp == other.hashCmp
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __contains__(self, item):
+        if isinstance(item, Distribution):
+            if item.key != self.key:
+                return False
+
+            item = item.version
+
+        # Allow prereleases always in order to match the previous behavior of
+        # this method. In the future this should be smarter and follow PEP 440
+        # more accurately.
+        return self.specifier.contains(item, prereleases=True)
+
+    def __hash__(self):
+        return self.__hash
+
+    def __repr__(self): return "Requirement.parse(%r)" % str(self)
+
+    @staticmethod
+    def parse(s):
+        req, = parse_requirements(s)
+        return req
+
+
+def _get_mro(cls):
+    """Get an mro for a type or classic class"""
+    if not isinstance(cls, type):
+
+        class cls(cls, object):
+            pass
+
+        return cls.__mro__[1:]
+    return cls.__mro__
+
+
+def _find_adapter(registry, ob):
+    """Return an adapter factory for `ob` from `registry`"""
+    for t in _get_mro(getattr(ob, '__class__', type(ob))):
+        if t in registry:
+            return registry[t]
+
+
+def ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    if not os.path.isdir(dirname):
+        os.makedirs(dirname)
+
+
+def _bypass_ensure_directory(path):
+    """Sandbox-bypassing version of ensure_directory()"""
+    if not WRITE_SUPPORT:
+        raise IOError('"os.mkdir" not supported on this platform.')
+    dirname, filename = split(path)
+    if dirname and filename and not isdir(dirname):
+        _bypass_ensure_directory(dirname)
+        mkdir(dirname, 0o755)
+
+
+def split_sections(s):
+    """Split a string or iterable thereof into (section, content) pairs
+
+    Each ``section`` is a stripped version of the section header ("[section]")
+    and each ``content`` is a list of stripped lines excluding blank lines and
+    comment-only lines.  If there are any such lines before the first section
+    header, they're returned in a first ``section`` of ``None``.
+    """
+    section = None
+    content = []
+    for line in yield_lines(s):
+        if line.startswith("["):
+            if line.endswith("]"):
+                if section or content:
+                    yield section, content
+                section = line[1:-1].strip()
+                content = []
+            else:
+                raise ValueError("Invalid section heading", line)
+        else:
+            content.append(line)
+
+    # wrap up last segment
+    yield section, content
+
+
+def _mkstemp(*args, **kw):
+    old_open = os.open
+    try:
+        # temporarily bypass sandboxing
+        os.open = os_open
+        return tempfile.mkstemp(*args, **kw)
+    finally:
+        # and then put it back
+        os.open = old_open
+
+
+# Silence the PEP440Warning by default, so that end users don't get hit by it
+# randomly just because they use pkg_resources. We want to append the rule
+# because we want earlier uses of filterwarnings to take precedence over this
+# one.
+warnings.filterwarnings("ignore", category=PEP440Warning, append=True)
+
+
+# from jaraco.functools 1.3
+def _call_aside(f, *args, **kwargs):
+    f(*args, **kwargs)
+    return f
+
+
+@_call_aside
+def _initialize(g=globals()):
+    "Set up global resource manager (deliberately not state-saved)"
+    manager = ResourceManager()
+    g['_manager'] = manager
+    for name in dir(manager):
+        if not name.startswith('_'):
+            g[name] = getattr(manager, name)
+
+
+@_call_aside
+def _initialize_master_working_set():
+    """
+    Prepare the master working set and make the ``require()``
+    API available.
+
+    This function has explicit effects on the global state
+    of pkg_resources. It is intended to be invoked once at
+    the initialization of this module.
+
+    Invocation by other packages is unsupported and done
+    at their own risk.
+    """
+    working_set = WorkingSet._build_master()
+    _declare_state('object', working_set=working_set)
+
+    require = working_set.require
+    iter_entry_points = working_set.iter_entry_points
+    add_activation_listener = working_set.subscribe
+    run_script = working_set.run_script
+    # backward compatibility
+    run_main = run_script
+    # Activate all distributions already on sys.path with replace=False and
+    # ensure that all distributions added to the working set in the future
+    # (e.g. by calling ``require()``) will get activated as well,
+    # with higher priority (replace=True).
+    dist = None  # ensure dist is defined for del dist below
+    for dist in working_set:
+        dist.activate(replace=False)
+    del dist
+    add_activation_listener(lambda dist: dist.activate(replace=True), existing=False)
+    working_set.entries = []
+    # match order
+    list(map(working_set.add_entry, sys.path))
+    globals().update(locals())
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/pkg_resources/__pycache__/__init__.cpython-35.pyc
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new file mode 100644
index 0000000..5107bc0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/__init__.py
@@ -0,0 +1,123 @@
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import division
+
+from collections import deque
+from datetime import timedelta
+from math import ceil
+from sys import stderr
+from time import time
+
+
+__version__ = '1.2'
+
+
+class Infinite(object):
+    file = stderr
+    sma_window = 10
+
+    def __init__(self, *args, **kwargs):
+        self.index = 0
+        self.start_ts = time()
+        self._ts = self.start_ts
+        self._dt = deque(maxlen=self.sma_window)
+        for key, val in kwargs.items():
+            setattr(self, key, val)
+
+    def __getitem__(self, key):
+        if key.startswith('_'):
+            return None
+        return getattr(self, key, None)
+
+    @property
+    def avg(self):
+        return sum(self._dt) / len(self._dt) if self._dt else 0
+
+    @property
+    def elapsed(self):
+        return int(time() - self.start_ts)
+
+    @property
+    def elapsed_td(self):
+        return timedelta(seconds=self.elapsed)
+
+    def update(self):
+        pass
+
+    def start(self):
+        pass
+
+    def finish(self):
+        pass
+
+    def next(self, n=1):
+        if n > 0:
+            now = time()
+            dt = (now - self._ts) / n
+            self._dt.append(dt)
+            self._ts = now
+
+        self.index = self.index + n
+        self.update()
+
+    def iter(self, it):
+        for x in it:
+            yield x
+            self.next()
+        self.finish()
+
+
+class Progress(Infinite):
+    def __init__(self, *args, **kwargs):
+        super(Progress, self).__init__(*args, **kwargs)
+        self.max = kwargs.get('max', 100)
+
+    @property
+    def eta(self):
+        return int(ceil(self.avg * self.remaining))
+
+    @property
+    def eta_td(self):
+        return timedelta(seconds=self.eta)
+
+    @property
+    def percent(self):
+        return self.progress * 100
+
+    @property
+    def progress(self):
+        return min(1, self.index / self.max)
+
+    @property
+    def remaining(self):
+        return max(self.max - self.index, 0)
+
+    def start(self):
+        self.update()
+
+    def goto(self, index):
+        incr = index - self.index
+        self.next(incr)
+
+    def iter(self, it):
+        try:
+            self.max = len(it)
+        except TypeError:
+            pass
+
+        for x in it:
+            yield x
+            self.next()
+        self.finish()
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/progress/bar.py b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/bar.py
new file mode 100644
index 0000000..8ce1461
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/bar.py
@@ -0,0 +1,83 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Progress
+from .helpers import WritelnMixin
+
+
+class Bar(WritelnMixin, Progress):
+    width = 32
+    message = ''
+    suffix = '%(index)d/%(max)d'
+    bar_prefix = ' |'
+    bar_suffix = '| '
+    empty_fill = ' '
+    fill = '#'
+    hide_cursor = True
+
+    def update(self):
+        filled_length = int(self.width * self.progress)
+        empty_length = self.width - filled_length
+
+        message = self.message % self
+        bar = self.fill * filled_length
+        empty = self.empty_fill * empty_length
+        suffix = self.suffix % self
+        line = ''.join([message, self.bar_prefix, bar, empty, self.bar_suffix,
+                        suffix])
+        self.writeln(line)
+
+
+class ChargingBar(Bar):
+    suffix = '%(percent)d%%'
+    bar_prefix = ' '
+    bar_suffix = ' '
+    empty_fill = u'∙'
+    fill = u'█'
+
+
+class FillingSquaresBar(ChargingBar):
+    empty_fill = u'▢'
+    fill = u'▣'
+
+
+class FillingCirclesBar(ChargingBar):
+    empty_fill = u'◯'
+    fill = u'◉'
+
+
+class IncrementalBar(Bar):
+    phases = (u' ', u'▏', u'▎', u'▍', u'▌', u'▋', u'▊', u'▉', u'█')
+
+    def update(self):
+        nphases = len(self.phases)
+        expanded_length = int(nphases * self.width * self.progress)
+        filled_length = int(self.width * self.progress)
+        empty_length = self.width - filled_length
+        phase = expanded_length - (filled_length * nphases)
+
+        message = self.message % self
+        bar = self.phases[-1] * filled_length
+        current = self.phases[phase] if phase > 0 else ''
+        empty = self.empty_fill * max(0, empty_length - len(current))
+        suffix = self.suffix % self
+        line = ''.join([message, self.bar_prefix, bar, current, empty,
+                        self.bar_suffix, suffix])
+        self.writeln(line)
+
+
+class ShadyBar(IncrementalBar):
+    phases = (u' ', u'░', u'▒', u'▓', u'█')
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/progress/counter.py b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/counter.py
new file mode 100644
index 0000000..caaddc6
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/counter.py
@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Infinite, Progress
+from .helpers import WriteMixin
+
+
+class Counter(WriteMixin, Infinite):
+    message = ''
+    hide_cursor = True
+
+    def update(self):
+        self.write(str(self.index))
+
+
+class Countdown(WriteMixin, Progress):
+    hide_cursor = True
+
+    def update(self):
+        self.write(str(self.remaining))
+
+
+class Stack(WriteMixin, Progress):
+    phases = (u' ', u'▁', u'▂', u'▃', u'▄', u'▅', u'▆', u'▇', u'█')
+    hide_cursor = True
+
+    def update(self):
+        nphases = len(self.phases)
+        i = min(nphases - 1, int(self.progress * nphases))
+        self.write(self.phases[i])
+
+
+class Pie(Stack):
+    phases = (u'○', u'◔', u'◑', u'◕', u'●')
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py
new file mode 100644
index 0000000..9ed90b2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/helpers.py
@@ -0,0 +1,91 @@
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import print_function
+
+
+HIDE_CURSOR = '\x1b[?25l'
+SHOW_CURSOR = '\x1b[?25h'
+
+
+class WriteMixin(object):
+    hide_cursor = False
+
+    def __init__(self, message=None, **kwargs):
+        super(WriteMixin, self).__init__(**kwargs)
+        self._width = 0
+        if message:
+            self.message = message
+
+        if self.file.isatty():
+            if self.hide_cursor:
+                print(HIDE_CURSOR, end='', file=self.file)
+            print(self.message, end='', file=self.file)
+            self.file.flush()
+
+    def write(self, s):
+        if self.file.isatty():
+            b = '\b' * self._width
+            c = s.ljust(self._width)
+            print(b + c, end='', file=self.file)
+            self._width = max(self._width, len(s))
+            self.file.flush()
+
+    def finish(self):
+        if self.file.isatty() and self.hide_cursor:
+            print(SHOW_CURSOR, end='', file=self.file)
+
+
+class WritelnMixin(object):
+    hide_cursor = False
+
+    def __init__(self, message=None, **kwargs):
+        super(WritelnMixin, self).__init__(**kwargs)
+        if message:
+            self.message = message
+
+        if self.file.isatty() and self.hide_cursor:
+            print(HIDE_CURSOR, end='', file=self.file)
+
+    def clearln(self):
+        if self.file.isatty():
+            print('\r\x1b[K', end='', file=self.file)
+
+    def writeln(self, line):
+        if self.file.isatty():
+            self.clearln()
+            print(line, end='', file=self.file)
+            self.file.flush()
+
+    def finish(self):
+        if self.file.isatty():
+            print(file=self.file)
+            if self.hide_cursor:
+                print(SHOW_CURSOR, end='', file=self.file)
+
+
+from signal import signal, SIGINT
+from sys import exit
+
+
+class SigIntMixin(object):
+    """Registers a signal handler that calls finish on SIGINT"""
+
+    def __init__(self, *args, **kwargs):
+        super(SigIntMixin, self).__init__(*args, **kwargs)
+        signal(SIGINT, self._sigint_handler)
+
+    def _sigint_handler(self, signum, frame):
+        self.finish()
+        exit(0)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py
new file mode 100644
index 0000000..969bfbb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/progress/spinner.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2012 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from . import Infinite
+from .helpers import WriteMixin
+
+
+class Spinner(WriteMixin, Infinite):
+    message = ''
+    phases = ('-', '\\', '|', '/')
+    hide_cursor = True
+
+    def update(self):
+        i = self.index % len(self.phases)
+        self.write(self.phases[i])
+
+
+class PieSpinner(Spinner):
+    phases = [u'◷', u'◶', u'◵', u'◴']
+
+
+class MoonSpinner(Spinner):
+    phases = [u'◑', u'◒', u'◐', u'◓']
+
+
+class LineSpinner(Spinner):
+    phases = [u'⎺', u'⎻', u'⎼', u'⎽', u'⎼', u'⎻']
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/pyparsing.py b/venv1/lib/python3.5/site-packages/pip/_vendor/pyparsing.py
new file mode 100644
index 0000000..cb46d41
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/pyparsing.py
@@ -0,0 +1,5696 @@
+# module pyparsing.py
+#
+# Copyright (c) 2003-2016  Paul T. McGuire
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__doc__ = \
+"""
+pyparsing module - Classes and methods to define and execute parsing grammars
+
+The pyparsing module is an alternative approach to creating and executing simple grammars,
+vs. the traditional lex/yacc approach, or the use of regular expressions.  With pyparsing, you
+don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
+provides a library of classes that you use to construct the grammar directly in Python.
+
+Here is a program to parse "Hello, World!" (or any greeting of the form 
+C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements 
+(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
+L{Literal} expressions)::
+
+    from pyparsing import Word, alphas
+
+    # define grammar of a greeting
+    greet = Word(alphas) + "," + Word(alphas) + "!"
+
+    hello = "Hello, World!"
+    print (hello, "->", greet.parseString(hello))
+
+The program outputs the following::
+
+    Hello, World! -> ['Hello', ',', 'World', '!']
+
+The Python representation of the grammar is quite readable, owing to the self-explanatory
+class names, and the use of '+', '|' and '^' operators.
+
+The L{ParseResults} object returned from L{ParserElement.parseString<ParserElement.parseString>} can be accessed as a nested list, a dictionary, or an
+object with named attributes.
+
+The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
+ - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello  ,  World  !", etc.)
+ - quoted strings
+ - embedded comments
+"""
+
+__version__ = "2.1.10"
+__versionTime__ = "07 Oct 2016 01:31 UTC"
+__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
+
+import string
+from weakref import ref as wkref
+import copy
+import sys
+import warnings
+import re
+import sre_constants
+import collections
+import pprint
+import traceback
+import types
+from datetime import datetime
+
+try:
+    from _thread import RLock
+except ImportError:
+    from threading import RLock
+
+try:
+    from collections import OrderedDict as _OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict as _OrderedDict
+    except ImportError:
+        _OrderedDict = None
+
+#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
+
+__all__ = [
+'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
+'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
+'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
+'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
+'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
+'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 
+'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
+'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
+'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
+'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'hexnums',
+'htmlComment', 'javaStyleComment', 'line', 'lineEnd', 'lineStart', 'lineno',
+'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
+'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
+'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity', 
+'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
+'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
+'indentedBlock', 'originalTextFor', 'ungroup', 'infixNotation','locatedExpr', 'withClass',
+'CloseMatch', 'tokenMap', 'pyparsing_common',
+]
+
+system_version = tuple(sys.version_info)[:3]
+PY_3 = system_version[0] == 3
+if PY_3:
+    _MAX_INT = sys.maxsize
+    basestring = str
+    unichr = chr
+    _ustr = str
+
+    # build list of single arg builtins, that can be used as parse actions
+    singleArgBuiltins = [sum, len, sorted, reversed, list, tuple, set, any, all, min, max]
+
+else:
+    _MAX_INT = sys.maxint
+    range = xrange
+
+    def _ustr(obj):
+        """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
+           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
+           then < returns the unicode object | encodes it with the default encoding | ... >.
+        """
+        if isinstance(obj,unicode):
+            return obj
+
+        try:
+            # If this works, then _ustr(obj) has the same behaviour as str(obj), so
+            # it won't break any existing code.
+            return str(obj)
+
+        except UnicodeEncodeError:
+            # Else encode it
+            ret = unicode(obj).encode(sys.getdefaultencoding(), 'xmlcharrefreplace')
+            xmlcharref = Regex('&#\d+;')
+            xmlcharref.setParseAction(lambda t: '\\u' + hex(int(t[0][2:-1]))[2:])
+            return xmlcharref.transformString(ret)
+
+    # build list of single arg builtins, tolerant of Python version, that can be used as parse actions
+    singleArgBuiltins = []
+    import __builtin__
+    for fname in "sum len sorted reversed list tuple set any all min max".split():
+        try:
+            singleArgBuiltins.append(getattr(__builtin__,fname))
+        except AttributeError:
+            continue
+            
+_generatorType = type((y for y in range(1)))
+ 
+def _xml_escape(data):
+    """Escape &, <, >, ", ', etc. in a string of data."""
+
+    # ampersand must be replaced first
+    from_symbols = '&><"\''
+    to_symbols = ('&'+s+';' for s in "amp gt lt quot apos".split())
+    for from_,to_ in zip(from_symbols, to_symbols):
+        data = data.replace(from_, to_)
+    return data
+
+class _Constants(object):
+    pass
+
+alphas     = string.ascii_uppercase + string.ascii_lowercase
+nums       = "0123456789"
+hexnums    = nums + "ABCDEFabcdef"
+alphanums  = alphas + nums
+_bslash    = chr(92)
+printables = "".join(c for c in string.printable if c not in string.whitespace)
+
+class ParseBaseException(Exception):
+    """base exception class for all parsing runtime exceptions"""
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, pstr, loc=0, msg=None, elem=None ):
+        self.loc = loc
+        if msg is None:
+            self.msg = pstr
+            self.pstr = ""
+        else:
+            self.msg = msg
+            self.pstr = pstr
+        self.parserElement = elem
+        self.args = (pstr, loc, msg)
+
+    @classmethod
+    def _from_exception(cls, pe):
+        """
+        internal factory method to simplify creating one type of ParseException 
+        from another - avoids having __init__ signature conflicts among subclasses
+        """
+        return cls(pe.pstr, pe.loc, pe.msg, pe.parserElement)
+
+    def __getattr__( self, aname ):
+        """supported attributes by name are:
+            - lineno - returns the line number of the exception text
+            - col - returns the column number of the exception text
+            - line - returns the line containing the exception text
+        """
+        if( aname == "lineno" ):
+            return lineno( self.loc, self.pstr )
+        elif( aname in ("col", "column") ):
+            return col( self.loc, self.pstr )
+        elif( aname == "line" ):
+            return line( self.loc, self.pstr )
+        else:
+            raise AttributeError(aname)
+
+    def __str__( self ):
+        return "%s (at char %d), (line:%d, col:%d)" % \
+                ( self.msg, self.loc, self.lineno, self.column )
+    def __repr__( self ):
+        return _ustr(self)
+    def markInputline( self, markerString = ">!<" ):
+        """Extracts the exception line from the input string, and marks
+           the location of the exception with a special symbol.
+        """
+        line_str = self.line
+        line_column = self.column - 1
+        if markerString:
+            line_str = "".join((line_str[:line_column],
+                                markerString, line_str[line_column:]))
+        return line_str.strip()
+    def __dir__(self):
+        return "lineno col line".split() + dir(type(self))
+
+class ParseException(ParseBaseException):
+    """
+    Exception thrown when parse expressions don't match class;
+    supported attributes by name are:
+     - lineno - returns the line number of the exception text
+     - col - returns the column number of the exception text
+     - line - returns the line containing the exception text
+        
+    Example::
+        try:
+            Word(nums).setName("integer").parseString("ABC")
+        except ParseException as pe:
+            print(pe)
+            print("column: {}".format(pe.col))
+            
+    prints::
+       Expected integer (at char 0), (line:1, col:1)
+        column: 1
+    """
+    pass
+
+class ParseFatalException(ParseBaseException):
+    """user-throwable exception thrown when inconsistent parse content
+       is found; stops all parsing immediately"""
+    pass
+
+class ParseSyntaxException(ParseFatalException):
+    """just like L{ParseFatalException}, but thrown internally when an
+       L{ErrorStop<And._ErrorStop>} ('-' operator) indicates that parsing is to stop 
+       immediately because an unbacktrackable syntax error has been found"""
+    pass
+
+#~ class ReparseException(ParseBaseException):
+    #~ """Experimental class - parse actions can raise this exception to cause
+       #~ pyparsing to reparse the input string:
+        #~ - with a modified input string, and/or
+        #~ - with a modified start location
+       #~ Set the values of the ReparseException in the constructor, and raise the
+       #~ exception in a parse action to cause pyparsing to use the new string/location.
+       #~ Setting the values as None causes no change to be made.
+       #~ """
+    #~ def __init_( self, newstring, restartLoc ):
+        #~ self.newParseText = newstring
+        #~ self.reparseLoc = restartLoc
+
+class RecursiveGrammarException(Exception):
+    """exception thrown by L{ParserElement.validate} if the grammar could be improperly recursive"""
+    def __init__( self, parseElementList ):
+        self.parseElementTrace = parseElementList
+
+    def __str__( self ):
+        return "RecursiveGrammarException: %s" % self.parseElementTrace
+
+class _ParseResultsWithOffset(object):
+    def __init__(self,p1,p2):
+        self.tup = (p1,p2)
+    def __getitem__(self,i):
+        return self.tup[i]
+    def __repr__(self):
+        return repr(self.tup[0])
+    def setOffset(self,i):
+        self.tup = (self.tup[0],i)
+
+class ParseResults(object):
+    """
+    Structured parse results, to provide multiple means of access to the parsed data:
+       - as a list (C{len(results)})
+       - by list index (C{results[0], results[1]}, etc.)
+       - by attribute (C{results.<resultsName>} - see L{ParserElement.setResultsName})
+
+    Example::
+        integer = Word(nums)
+        date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+        # equivalent form:
+        # date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+
+        # parseString returns a ParseResults object
+        result = date_str.parseString("1999/12/31")
+
+        def test(s, fn=repr):
+            print("%s -> %s" % (s, fn(eval(s))))
+        test("list(result)")
+        test("result[0]")
+        test("result['month']")
+        test("result.day")
+        test("'month' in result")
+        test("'minutes' in result")
+        test("result.dump()", str)
+    prints::
+        list(result) -> ['1999', '/', '12', '/', '31']
+        result[0] -> '1999'
+        result['month'] -> '12'
+        result.day -> '31'
+        'month' in result -> True
+        'minutes' in result -> False
+        result.dump() -> ['1999', '/', '12', '/', '31']
+        - day: 31
+        - month: 12
+        - year: 1999
+    """
+    def __new__(cls, toklist=None, name=None, asList=True, modal=True ):
+        if isinstance(toklist, cls):
+            return toklist
+        retobj = object.__new__(cls)
+        retobj.__doinit = True
+        return retobj
+
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, toklist=None, name=None, asList=True, modal=True, isinstance=isinstance ):
+        if self.__doinit:
+            self.__doinit = False
+            self.__name = None
+            self.__parent = None
+            self.__accumNames = {}
+            self.__asList = asList
+            self.__modal = modal
+            if toklist is None:
+                toklist = []
+            if isinstance(toklist, list):
+                self.__toklist = toklist[:]
+            elif isinstance(toklist, _generatorType):
+                self.__toklist = list(toklist)
+            else:
+                self.__toklist = [toklist]
+            self.__tokdict = dict()
+
+        if name is not None and name:
+            if not modal:
+                self.__accumNames[name] = 0
+            if isinstance(name,int):
+                name = _ustr(name) # will always return a str, but use _ustr for consistency
+            self.__name = name
+            if not (isinstance(toklist, (type(None), basestring, list)) and toklist in (None,'',[])):
+                if isinstance(toklist,basestring):
+                    toklist = [ toklist ]
+                if asList:
+                    if isinstance(toklist,ParseResults):
+                        self[name] = _ParseResultsWithOffset(toklist.copy(),0)
+                    else:
+                        self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
+                    self[name].__name = name
+                else:
+                    try:
+                        self[name] = toklist[0]
+                    except (KeyError,TypeError,IndexError):
+                        self[name] = toklist
+
+    def __getitem__( self, i ):
+        if isinstance( i, (int,slice) ):
+            return self.__toklist[i]
+        else:
+            if i not in self.__accumNames:
+                return self.__tokdict[i][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[i] ])
+
+    def __setitem__( self, k, v, isinstance=isinstance ):
+        if isinstance(v,_ParseResultsWithOffset):
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
+            sub = v[0]
+        elif isinstance(k,(int,slice)):
+            self.__toklist[k] = v
+            sub = v
+        else:
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
+            sub = v
+        if isinstance(sub,ParseResults):
+            sub.__parent = wkref(self)
+
+    def __delitem__( self, i ):
+        if isinstance(i,(int,slice)):
+            mylen = len( self.__toklist )
+            del self.__toklist[i]
+
+            # convert int to slice
+            if isinstance(i, int):
+                if i < 0:
+                    i += mylen
+                i = slice(i, i+1)
+            # get removed indices
+            removed = list(range(*i.indices(mylen)))
+            removed.reverse()
+            # fixup indices in token dictionary
+            for name,occurrences in self.__tokdict.items():
+                for j in removed:
+                    for k, (value, position) in enumerate(occurrences):
+                        occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
+        else:
+            del self.__tokdict[i]
+
+    def __contains__( self, k ):
+        return k in self.__tokdict
+
+    def __len__( self ): return len( self.__toklist )
+    def __bool__(self): return ( not not self.__toklist )
+    __nonzero__ = __bool__
+    def __iter__( self ): return iter( self.__toklist )
+    def __reversed__( self ): return iter( self.__toklist[::-1] )
+    def _iterkeys( self ):
+        if hasattr(self.__tokdict, "iterkeys"):
+            return self.__tokdict.iterkeys()
+        else:
+            return iter(self.__tokdict)
+
+    def _itervalues( self ):
+        return (self[k] for k in self._iterkeys())
+            
+    def _iteritems( self ):
+        return ((k, self[k]) for k in self._iterkeys())
+
+    if PY_3:
+        keys = _iterkeys       
+        """Returns an iterator of all named result keys (Python 3.x only)."""
+
+        values = _itervalues
+        """Returns an iterator of all named result values (Python 3.x only)."""
+
+        items = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 3.x only)."""
+
+    else:
+        iterkeys = _iterkeys
+        """Returns an iterator of all named result keys (Python 2.x only)."""
+
+        itervalues = _itervalues
+        """Returns an iterator of all named result values (Python 2.x only)."""
+
+        iteritems = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 2.x only)."""
+
+        def keys( self ):
+            """Returns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iterkeys())
+
+        def values( self ):
+            """Returns all named result values (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.itervalues())
+                
+        def items( self ):
+            """Returns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iteritems())
+
+    def haskeys( self ):
+        """Since keys() returns an iterator, this method is helpful in bypassing
+           code that looks for the existence of any defined results names."""
+        return bool(self.__tokdict)
+        
+    def pop( self, *args, **kwargs):
+        """
+        Removes and returns item at specified index (default=C{last}).
+        Supports both C{list} and C{dict} semantics for C{pop()}. If passed no
+        argument or an integer argument, it will use C{list} semantics
+        and pop tokens from the list of parsed tokens. If passed a 
+        non-integer argument (most likely a string), it will use C{dict}
+        semantics and pop the corresponding value from any defined 
+        results names. A second default return value argument is 
+        supported, just as in C{dict.pop()}.
+
+        Example::
+            def remove_first(tokens):
+                tokens.pop(0)
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321']
+
+            label = Word(alphas)
+            patt = label("LABEL") + OneOrMore(Word(nums))
+            print(patt.parseString("AAB 123 321").dump())
+
+            # Use pop() in a parse action to remove named result (note that corresponding value is not
+            # removed from list form of results)
+            def remove_LABEL(tokens):
+                tokens.pop("LABEL")
+                return tokens
+            patt.addParseAction(remove_LABEL)
+            print(patt.parseString("AAB 123 321").dump())
+        prints::
+            ['AAB', '123', '321']
+            - LABEL: AAB
+
+            ['AAB', '123', '321']
+        """
+        if not args:
+            args = [-1]
+        for k,v in kwargs.items():
+            if k == 'default':
+                args = (args[0], v)
+            else:
+                raise TypeError("pop() got an unexpected keyword argument '%s'" % k)
+        if (isinstance(args[0], int) or 
+                        len(args) == 1 or 
+                        args[0] in self):
+            index = args[0]
+            ret = self[index]
+            del self[index]
+            return ret
+        else:
+            defaultvalue = args[1]
+            return defaultvalue
+
+    def get(self, key, defaultValue=None):
+        """
+        Returns named result matching the given key, or if there is no
+        such name, then returns the given C{defaultValue} or C{None} if no
+        C{defaultValue} is specified.
+
+        Similar to C{dict.get()}.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            result = date_str.parseString("1999/12/31")
+            print(result.get("year")) # -> '1999'
+            print(result.get("hour", "not specified")) # -> 'not specified'
+            print(result.get("hour")) # -> None
+        """
+        if key in self:
+            return self[key]
+        else:
+            return defaultValue
+
+    def insert( self, index, insStr ):
+        """
+        Inserts new element at location index in the list of parsed tokens.
+        
+        Similar to C{list.insert()}.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+
+            # use a parse action to insert the parse location in the front of the parsed results
+            def insert_locn(locn, tokens):
+                tokens.insert(0, locn)
+            print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321']
+        """
+        self.__toklist.insert(index, insStr)
+        # fixup indices in token dictionary
+        for name,occurrences in self.__tokdict.items():
+            for k, (value, position) in enumerate(occurrences):
+                occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
+
+    def append( self, item ):
+        """
+        Add single element to end of ParseResults list of elements.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            
+            # use a parse action to compute the sum of the parsed integers, and add it to the end
+            def append_sum(tokens):
+                tokens.append(sum(map(int, tokens)))
+            print(OneOrMore(Word(nums)).addParseAction(append_sum).parseString("0 123 321")) # -> ['0', '123', '321', 444]
+        """
+        self.__toklist.append(item)
+
+    def extend( self, itemseq ):
+        """
+        Add sequence of elements to end of ParseResults list of elements.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            
+            # use a parse action to append the reverse of the matched strings, to make a palindrome
+            def make_palindrome(tokens):
+                tokens.extend(reversed([t[::-1] for t in tokens]))
+                return ''.join(tokens)
+            print(patt.addParseAction(make_palindrome).parseString("lskdj sdlkjf lksd")) # -> 'lskdjsdlkjflksddsklfjkldsjdksl'
+        """
+        if isinstance(itemseq, ParseResults):
+            self += itemseq
+        else:
+            self.__toklist.extend(itemseq)
+
+    def clear( self ):
+        """
+        Clear all elements and results names.
+        """
+        del self.__toklist[:]
+        self.__tokdict.clear()
+
+    def __getattr__( self, name ):
+        try:
+            return self[name]
+        except KeyError:
+            return ""
+            
+        if name in self.__tokdict:
+            if name not in self.__accumNames:
+                return self.__tokdict[name][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[name] ])
+        else:
+            return ""
+
+    def __add__( self, other ):
+        ret = self.copy()
+        ret += other
+        return ret
+
+    def __iadd__( self, other ):
+        if other.__tokdict:
+            offset = len(self.__toklist)
+            addoffset = lambda a: offset if a<0 else a+offset
+            otheritems = other.__tokdict.items()
+            otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
+                                for (k,vlist) in otheritems for v in vlist]
+            for k,v in otherdictitems:
+                self[k] = v
+                if isinstance(v[0],ParseResults):
+                    v[0].__parent = wkref(self)
+            
+        self.__toklist += other.__toklist
+        self.__accumNames.update( other.__accumNames )
+        return self
+
+    def __radd__(self, other):
+        if isinstance(other,int) and other == 0:
+            # useful for merging many ParseResults using sum() builtin
+            return self.copy()
+        else:
+            # this may raise a TypeError - so be it
+            return other + self
+        
+    def __repr__( self ):
+        return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
+
+    def __str__( self ):
+        return '[' + ', '.join(_ustr(i) if isinstance(i, ParseResults) else repr(i) for i in self.__toklist) + ']'
+
+    def _asStringList( self, sep='' ):
+        out = []
+        for item in self.__toklist:
+            if out and sep:
+                out.append(sep)
+            if isinstance( item, ParseResults ):
+                out += item._asStringList()
+            else:
+                out.append( _ustr(item) )
+        return out
+
+    def asList( self ):
+        """
+        Returns the parse results as a nested list of matching tokens, all converted to strings.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            result = patt.parseString("sldkj lsdkj sldkj")
+            # even though the result prints in string-like form, it is actually a pyparsing ParseResults
+            print(type(result), result) # -> <class 'pyparsing.ParseResults'> ['sldkj', 'lsdkj', 'sldkj']
+            
+            # Use asList() to create an actual list
+            result_list = result.asList()
+            print(type(result_list), result_list) # -> <class 'list'> ['sldkj', 'lsdkj', 'sldkj']
+        """
+        return [res.asList() if isinstance(res,ParseResults) else res for res in self.__toklist]
+
+    def asDict( self ):
+        """
+        Returns the named parse results as a nested dictionary.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(type(result), repr(result)) # -> <class 'pyparsing.ParseResults'> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]})
+            
+            result_dict = result.asDict()
+            print(type(result_dict), repr(result_dict)) # -> <class 'dict'> {'day': '1999', 'year': '12', 'month': '31'}
+
+            # even though a ParseResults supports dict-like access, sometime you just need to have a dict
+            import json
+            print(json.dumps(result)) # -> Exception: TypeError: ... is not JSON serializable
+            print(json.dumps(result.asDict())) # -> {"month": "31", "day": "1999", "year": "12"}
+        """
+        if PY_3:
+            item_fn = self.items
+        else:
+            item_fn = self.iteritems
+            
+        def toItem(obj):
+            if isinstance(obj, ParseResults):
+                if obj.haskeys():
+                    return obj.asDict()
+                else:
+                    return [toItem(v) for v in obj]
+            else:
+                return obj
+                
+        return dict((k,toItem(v)) for k,v in item_fn())
+
+    def copy( self ):
+        """
+        Returns a new copy of a C{ParseResults} object.
+        """
+        ret = ParseResults( self.__toklist )
+        ret.__tokdict = self.__tokdict.copy()
+        ret.__parent = self.__parent
+        ret.__accumNames.update( self.__accumNames )
+        ret.__name = self.__name
+        return ret
+
+    def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
+        """
+        (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names.
+        """
+        nl = "\n"
+        out = []
+        namedItems = dict((v[1],k) for (k,vlist) in self.__tokdict.items()
+                                                            for v in vlist)
+        nextLevelIndent = indent + "  "
+
+        # collapse out indents if formatting is not desired
+        if not formatted:
+            indent = ""
+            nextLevelIndent = ""
+            nl = ""
+
+        selfTag = None
+        if doctag is not None:
+            selfTag = doctag
+        else:
+            if self.__name:
+                selfTag = self.__name
+
+        if not selfTag:
+            if namedItemsOnly:
+                return ""
+            else:
+                selfTag = "ITEM"
+
+        out += [ nl, indent, "<", selfTag, ">" ]
+
+        for i,res in enumerate(self.__toklist):
+            if isinstance(res,ParseResults):
+                if i in namedItems:
+                    out += [ res.asXML(namedItems[i],
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+                else:
+                    out += [ res.asXML(None,
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+            else:
+                # individual token, see if there is a name for it
+                resTag = None
+                if i in namedItems:
+                    resTag = namedItems[i]
+                if not resTag:
+                    if namedItemsOnly:
+                        continue
+                    else:
+                        resTag = "ITEM"
+                xmlBodyText = _xml_escape(_ustr(res))
+                out += [ nl, nextLevelIndent, "<", resTag, ">",
+                                                xmlBodyText,
+                                                "</", resTag, ">" ]
+
+        out += [ nl, indent, "</", selfTag, ">" ]
+        return "".join(out)
+
+    def __lookup(self,sub):
+        for k,vlist in self.__tokdict.items():
+            for v,loc in vlist:
+                if sub is v:
+                    return k
+        return None
+
+    def getName(self):
+        """
+        Returns the results name for this token expression. Useful when several 
+        different expressions might match at a particular location.
+
+        Example::
+            integer = Word(nums)
+            ssn_expr = Regex(r"\d\d\d-\d\d-\d\d\d\d")
+            house_number_expr = Suppress('#') + Word(nums, alphanums)
+            user_data = (Group(house_number_expr)("house_number") 
+                        | Group(ssn_expr)("ssn")
+                        | Group(integer)("age"))
+            user_info = OneOrMore(user_data)
+            
+            result = user_info.parseString("22 111-22-3333 #221B")
+            for item in result:
+                print(item.getName(), ':', item[0])
+        prints::
+            age : 22
+            ssn : 111-22-3333
+            house_number : 221B
+        """
+        if self.__name:
+            return self.__name
+        elif self.__parent:
+            par = self.__parent()
+            if par:
+                return par.__lookup(self)
+            else:
+                return None
+        elif (len(self) == 1 and
+               len(self.__tokdict) == 1 and
+               next(iter(self.__tokdict.values()))[0][1] in (0,-1)):
+            return next(iter(self.__tokdict.keys()))
+        else:
+            return None
+
+    def dump(self, indent='', depth=0, full=True):
+        """
+        Diagnostic method for listing out the contents of a C{ParseResults}.
+        Accepts an optional C{indent} argument so that this string can be embedded
+        in a nested display of other data.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(result.dump())
+        prints::
+            ['12', '/', '31', '/', '1999']
+            - day: 1999
+            - month: 31
+            - year: 12
+        """
+        out = []
+        NL = '\n'
+        out.append( indent+_ustr(self.asList()) )
+        if full:
+            if self.haskeys():
+                items = sorted((str(k), v) for k,v in self.items())
+                for k,v in items:
+                    if out:
+                        out.append(NL)
+                    out.append( "%s%s- %s: " % (indent,('  '*depth), k) )
+                    if isinstance(v,ParseResults):
+                        if v:
+                            out.append( v.dump(indent,depth+1) )
+                        else:
+                            out.append(_ustr(v))
+                    else:
+                        out.append(repr(v))
+            elif any(isinstance(vv,ParseResults) for vv in self):
+                v = self
+                for i,vv in enumerate(v):
+                    if isinstance(vv,ParseResults):
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),vv.dump(indent,depth+1) ))
+                    else:
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),_ustr(vv)))
+            
+        return "".join(out)
+
+    def pprint(self, *args, **kwargs):
+        """
+        Pretty-printer for parsed results as a list, using the C{pprint} module.
+        Accepts additional positional or keyword args as defined for the 
+        C{pprint.pprint} method. (U{http://docs.python.org/3/library/pprint.html#pprint.pprint})
+
+        Example::
+            ident = Word(alphas, alphanums)
+            num = Word(nums)
+            func = Forward()
+            term = ident | num | Group('(' + func + ')')
+            func <<= ident + Group(Optional(delimitedList(term)))
+            result = func.parseString("fna a,b,(fnb c,d,200),100")
+            result.pprint(width=40)
+        prints::
+            ['fna',
+             ['a',
+              'b',
+              ['(', 'fnb', ['c', 'd', '200'], ')'],
+              '100']]
+        """
+        pprint.pprint(self.asList(), *args, **kwargs)
+
+    # add support for pickle protocol
+    def __getstate__(self):
+        return ( self.__toklist,
+                 ( self.__tokdict.copy(),
+                   self.__parent is not None and self.__parent() or None,
+                   self.__accumNames,
+                   self.__name ) )
+
+    def __setstate__(self,state):
+        self.__toklist = state[0]
+        (self.__tokdict,
+         par,
+         inAccumNames,
+         self.__name) = state[1]
+        self.__accumNames = {}
+        self.__accumNames.update(inAccumNames)
+        if par is not None:
+            self.__parent = wkref(par)
+        else:
+            self.__parent = None
+
+    def __getnewargs__(self):
+        return self.__toklist, self.__name, self.__asList, self.__modal
+
+    def __dir__(self):
+        return (dir(type(self)) + list(self.keys()))
+
+collections.MutableMapping.register(ParseResults)
+
+def col (loc,strg):
+    """Returns current column within a string, counting newlines as line separators.
+   The first column is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    s = strg
+    return 1 if 0<loc<len(s) and s[loc-1] == '\n' else loc - s.rfind("\n", 0, loc)
+
+def lineno(loc,strg):
+    """Returns current line number within a string, counting newlines as line separators.
+   The first line is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return strg.count("\n",0,loc) + 1
+
+def line( loc, strg ):
+    """Returns the line of text containing loc within a string, counting newlines as line separators.
+       """
+    lastCR = strg.rfind("\n", 0, loc)
+    nextCR = strg.find("\n", loc)
+    if nextCR >= 0:
+        return strg[lastCR+1:nextCR]
+    else:
+        return strg[lastCR+1:]
+
+def _defaultStartDebugAction( instring, loc, expr ):
+    print (("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) )))
+
+def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
+    print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
+
+def _defaultExceptionDebugAction( instring, loc, expr, exc ):
+    print ("Exception raised:" + _ustr(exc))
+
+def nullDebugAction(*args):
+    """'Do-nothing' debug action, to suppress debugging output during parsing."""
+    pass
+
+# Only works on Python 3.x - nonlocal is toxic to Python 2 installs
+#~ 'decorator to trim function calls to match the arity of the target'
+#~ def _trim_arity(func, maxargs=3):
+    #~ if func in singleArgBuiltins:
+        #~ return lambda s,l,t: func(t)
+    #~ limit = 0
+    #~ foundArity = False
+    #~ def wrapper(*args):
+        #~ nonlocal limit,foundArity
+        #~ while 1:
+            #~ try:
+                #~ ret = func(*args[limit:])
+                #~ foundArity = True
+                #~ return ret
+            #~ except TypeError:
+                #~ if limit == maxargs or foundArity:
+                    #~ raise
+                #~ limit += 1
+                #~ continue
+    #~ return wrapper
+
+# this version is Python 2.x-3.x cross-compatible
+'decorator to trim function calls to match the arity of the target'
+def _trim_arity(func, maxargs=2):
+    if func in singleArgBuiltins:
+        return lambda s,l,t: func(t)
+    limit = [0]
+    foundArity = [False]
+    
+    # traceback return data structure changed in Py3.5 - normalize back to plain tuples
+    if system_version[:2] >= (3,5):
+        def extract_stack(limit=0):
+            # special handling for Python 3.5.0 - extra deep call stack by 1
+            offset = -3 if system_version == (3,5,0) else -2
+            frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
+            return [(frame_summary.filename, frame_summary.lineno)]
+        def extract_tb(tb, limit=0):
+            frames = traceback.extract_tb(tb, limit=limit)
+            frame_summary = frames[-1]
+            return [(frame_summary.filename, frame_summary.lineno)]
+    else:
+        extract_stack = traceback.extract_stack
+        extract_tb = traceback.extract_tb
+    
+    # synthesize what would be returned by traceback.extract_stack at the call to 
+    # user's parse action 'func', so that we don't incur call penalty at parse time
+    
+    LINE_DIFF = 6
+    # IF ANY CODE CHANGES, EVEN JUST COMMENTS OR BLANK LINES, BETWEEN THE NEXT LINE AND 
+    # THE CALL TO FUNC INSIDE WRAPPER, LINE_DIFF MUST BE MODIFIED!!!!
+    this_line = extract_stack(limit=2)[-1]
+    pa_call_line_synth = (this_line[0], this_line[1]+LINE_DIFF)
+
+    def wrapper(*args):
+        while 1:
+            try:
+                ret = func(*args[limit[0]:])
+                foundArity[0] = True
+                return ret
+            except TypeError:
+                # re-raise TypeErrors if they did not come from our arity testing
+                if foundArity[0]:
+                    raise
+                else:
+                    try:
+                        tb = sys.exc_info()[-1]
+                        if not extract_tb(tb, limit=2)[-1][:2] == pa_call_line_synth:
+                            raise
+                    finally:
+                        del tb
+
+                if limit[0] <= maxargs:
+                    limit[0] += 1
+                    continue
+                raise
+
+    # copy func name to wrapper for sensible debug output
+    func_name = "<parse action>"
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    wrapper.__name__ = func_name
+
+    return wrapper
+
+class ParserElement(object):
+    """Abstract base level parser element class."""
+    DEFAULT_WHITE_CHARS = " \n\t\r"
+    verbose_stacktrace = False
+
+    @staticmethod
+    def setDefaultWhitespaceChars( chars ):
+        r"""
+        Overrides the default whitespace chars
+
+        Example::
+            # default whitespace chars are space, <TAB> and newline
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def', 'ghi', 'jkl']
+            
+            # change to just treat newline as significant
+            ParserElement.setDefaultWhitespaceChars(" \t")
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def']
+        """
+        ParserElement.DEFAULT_WHITE_CHARS = chars
+
+    @staticmethod
+    def inlineLiteralsUsing(cls):
+        """
+        Set class to be used for inclusion of string literals into a parser.
+        
+        Example::
+            # default literal class used is Literal
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+
+            # change to Suppress
+            ParserElement.inlineLiteralsUsing(Suppress)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '12', '31']
+        """
+        ParserElement._literalStringClass = cls
+
+    def __init__( self, savelist=False ):
+        self.parseAction = list()
+        self.failAction = None
+        #~ self.name = "<unknown>"  # don't define self.name, let subclasses try/except upcall
+        self.strRepr = None
+        self.resultsName = None
+        self.saveAsList = savelist
+        self.skipWhitespace = True
+        self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        self.copyDefaultWhiteChars = True
+        self.mayReturnEmpty = False # used when checking for left-recursion
+        self.keepTabs = False
+        self.ignoreExprs = list()
+        self.debug = False
+        self.streamlined = False
+        self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
+        self.errmsg = ""
+        self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
+        self.debugActions = ( None, None, None ) #custom debug actions
+        self.re = None
+        self.callPreparse = True # used to avoid redundant calls to preParse
+        self.callDuringTry = False
+
+    def copy( self ):
+        """
+        Make a copy of this C{ParserElement}.  Useful for defining different parse actions
+        for the same parsing pattern, using copies of the original parse element.
+        
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
+            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+            
+            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))
+        prints::
+            [5120, 100, 655360, 268435456]
+        Equivalent form of C{expr.copy()} is just C{expr()}::
+            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+        """
+        cpy = copy.copy( self )
+        cpy.parseAction = self.parseAction[:]
+        cpy.ignoreExprs = self.ignoreExprs[:]
+        if self.copyDefaultWhiteChars:
+            cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        return cpy
+
+    def setName( self, name ):
+        """
+        Define name for this expression, makes debugging and exception messages clearer.
+        
+        Example::
+            Word(nums).parseString("ABC")  # -> Exception: Expected W:(0123...) (at char 0), (line:1, col:1)
+            Word(nums).setName("integer").parseString("ABC")  # -> Exception: Expected integer (at char 0), (line:1, col:1)
+        """
+        self.name = name
+        self.errmsg = "Expected " + self.name
+        if hasattr(self,"exception"):
+            self.exception.msg = self.errmsg
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        """
+        Define name for referencing matching tokens as a nested attribute
+        of the returned parse results.
+        NOTE: this returns a *copy* of the original C{ParserElement} object;
+        this is so that the client can define a basic element, such as an
+        integer, and reference it in multiple places with different names.
+
+        You can also set results names using the abbreviated syntax,
+        C{expr("name")} in place of C{expr.setResultsName("name")} - 
+        see L{I{__call__}<__call__>}.
+
+        Example::
+            date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+
+            # equivalent form:
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+        """
+        newself = self.copy()
+        if name.endswith("*"):
+            name = name[:-1]
+            listAllMatches=True
+        newself.resultsName = name
+        newself.modalResults = not listAllMatches
+        return newself
+
+    def setBreak(self,breakFlag = True):
+        """Method to invoke the Python pdb debugger when this element is
+           about to be parsed. Set C{breakFlag} to True to enable, False to
+           disable.
+        """
+        if breakFlag:
+            _parseMethod = self._parse
+            def breaker(instring, loc, doActions=True, callPreParse=True):
+                import pdb
+                pdb.set_trace()
+                return _parseMethod( instring, loc, doActions, callPreParse )
+            breaker._originalParseMethod = _parseMethod
+            self._parse = breaker
+        else:
+            if hasattr(self._parse,"_originalParseMethod"):
+                self._parse = self._parse._originalParseMethod
+        return self
+
+    def setParseAction( self, *fns, **kwargs ):
+        """
+        Define action to perform when successfully matching parse element definition.
+        Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
+        C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
+         - s   = the original string being parsed (see note below)
+         - loc = the location of the matching substring
+         - toks = a list of the matched tokens, packaged as a C{L{ParseResults}} object
+        If the functions in fns modify the tokens, they can return them as the return
+        value from fn, and the modified list of tokens will replace the original.
+        Otherwise, fn does not need to return any value.
+
+        Optional keyword arguments:
+         - callDuringTry = (default=C{False}) indicate if parse action should be run during lookaheads and alternate testing
+
+        Note: the default parsing behavior is to expand tabs in the input string
+        before starting the parsing process.  See L{I{parseString}<parseString>} for more information
+        on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+        consistent view of the parsed string, the parse location, and line and column
+        positions within the parsed string.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer + '/' + integer + '/' + integer
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+            # use parse action to convert to ints at parse time
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            date_str = integer + '/' + integer + '/' + integer
+
+            # note that integer fields are now ints, not strings
+            date_str.parseString("1999/12/31")  # -> [1999, '/', 12, '/', 31]
+        """
+        self.parseAction = list(map(_trim_arity, list(fns)))
+        self.callDuringTry = kwargs.get("callDuringTry", False)
+        return self
+
+    def addParseAction( self, *fns, **kwargs ):
+        """
+        Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}.
+        
+        See examples in L{I{copy}<copy>}.
+        """
+        self.parseAction += list(map(_trim_arity, list(fns)))
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def addCondition(self, *fns, **kwargs):
+        """Add a boolean predicate function to expression's list of parse actions. See 
+        L{I{setParseAction}<setParseAction>} for function call signatures. Unlike C{setParseAction}, 
+        functions passed to C{addCondition} need to return boolean success/fail of the condition.
+
+        Optional keyword arguments:
+         - message = define a custom message to be used in the raised exception
+         - fatal   = if True, will raise ParseFatalException to stop parsing immediately; otherwise will raise ParseException
+         
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            year_int = integer.copy()
+            year_int.addCondition(lambda toks: toks[0] >= 2000, message="Only support years 2000 and later")
+            date_str = year_int + '/' + integer + '/' + integer
+
+            result = date_str.parseString("1999/12/31")  # -> Exception: Only support years 2000 and later (at char 0), (line:1, col:1)
+        """
+        msg = kwargs.get("message", "failed user-defined condition")
+        exc_type = ParseFatalException if kwargs.get("fatal", False) else ParseException
+        for fn in fns:
+            def pa(s,l,t):
+                if not bool(_trim_arity(fn)(s,l,t)):
+                    raise exc_type(s,l,msg)
+            self.parseAction.append(pa)
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def setFailAction( self, fn ):
+        """Define action to perform if parsing fails at this expression.
+           Fail acton fn is a callable function that takes the arguments
+           C{fn(s,loc,expr,err)} where:
+            - s = string being parsed
+            - loc = location where expression match was attempted and failed
+            - expr = the parse expression that failed
+            - err = the exception thrown
+           The function returns no value.  It may throw C{L{ParseFatalException}}
+           if it is desired to stop parsing immediately."""
+        self.failAction = fn
+        return self
+
+    def _skipIgnorables( self, instring, loc ):
+        exprsFound = True
+        while exprsFound:
+            exprsFound = False
+            for e in self.ignoreExprs:
+                try:
+                    while 1:
+                        loc,dummy = e._parse( instring, loc )
+                        exprsFound = True
+                except ParseException:
+                    pass
+        return loc
+
+    def preParse( self, instring, loc ):
+        if self.ignoreExprs:
+            loc = self._skipIgnorables( instring, loc )
+
+        if self.skipWhitespace:
+            wt = self.whiteChars
+            instrlen = len(instring)
+            while loc < instrlen and instring[loc] in wt:
+                loc += 1
+
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        return loc, []
+
+    def postParse( self, instring, loc, tokenlist ):
+        return tokenlist
+
+    #~ @profile
+    def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
+        debugging = ( self.debug ) #and doActions )
+
+        if debugging or self.failAction:
+            #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+            if (self.debugActions[0] ):
+                self.debugActions[0]( instring, loc, self )
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            try:
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            except ParseBaseException as err:
+                #~ print ("Exception raised:", err)
+                if self.debugActions[2]:
+                    self.debugActions[2]( instring, tokensStart, self, err )
+                if self.failAction:
+                    self.failAction( instring, tokensStart, self, err )
+                raise
+        else:
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            if self.mayIndexError or loc >= len(instring):
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            else:
+                loc,tokens = self.parseImpl( instring, preloc, doActions )
+
+        tokens = self.postParse( instring, loc, tokens )
+
+        retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
+        if self.parseAction and (doActions or self.callDuringTry):
+            if debugging:
+                try:
+                    for fn in self.parseAction:
+                        tokens = fn( instring, tokensStart, retTokens )
+                        if tokens is not None:
+                            retTokens = ParseResults( tokens,
+                                                      self.resultsName,
+                                                      asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                      modal=self.modalResults )
+                except ParseBaseException as err:
+                    #~ print "Exception raised in user parse action:", err
+                    if (self.debugActions[2] ):
+                        self.debugActions[2]( instring, tokensStart, self, err )
+                    raise
+            else:
+                for fn in self.parseAction:
+                    tokens = fn( instring, tokensStart, retTokens )
+                    if tokens is not None:
+                        retTokens = ParseResults( tokens,
+                                                  self.resultsName,
+                                                  asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                  modal=self.modalResults )
+
+        if debugging:
+            #~ print ("Matched",self,"->",retTokens.asList())
+            if (self.debugActions[1] ):
+                self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
+
+        return loc, retTokens
+
+    def tryParse( self, instring, loc ):
+        try:
+            return self._parse( instring, loc, doActions=False )[0]
+        except ParseFatalException:
+            raise ParseException( instring, loc, self.errmsg, self)
+    
+    def canParseNext(self, instring, loc):
+        try:
+            self.tryParse(instring, loc)
+        except (ParseException, IndexError):
+            return False
+        else:
+            return True
+
+    class _UnboundedCache(object):
+        def __init__(self):
+            cache = {}
+            self.not_in_cache = not_in_cache = object()
+
+            def get(self, key):
+                return cache.get(key, not_in_cache)
+
+            def set(self, key, value):
+                cache[key] = value
+
+            def clear(self):
+                cache.clear()
+
+            self.get = types.MethodType(get, self)
+            self.set = types.MethodType(set, self)
+            self.clear = types.MethodType(clear, self)
+
+    if _OrderedDict is not None:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = _OrderedDict()
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.popitem(False)
+
+                def clear(self):
+                    cache.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    else:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = {}
+                key_fifo = collections.deque([], size)
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.pop(key_fifo.popleft(), None)
+                    key_fifo.append(key)
+
+                def clear(self):
+                    cache.clear()
+                    key_fifo.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    # argument cache for optimizing repeated calls when backtracking through recursive expressions
+    packrat_cache = {} # this is set later by enabledPackrat(); this is here so that resetCache() doesn't fail
+    packrat_cache_lock = RLock()
+    packrat_cache_stats = [0, 0]
+
+    # this method gets repeatedly called during backtracking with the same arguments -
+    # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
+    def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
+        HIT, MISS = 0, 1
+        lookup = (self, instring, loc, callPreParse, doActions)
+        with ParserElement.packrat_cache_lock:
+            cache = ParserElement.packrat_cache
+            value = cache.get(lookup)
+            if value is cache.not_in_cache:
+                ParserElement.packrat_cache_stats[MISS] += 1
+                try:
+                    value = self._parseNoCache(instring, loc, doActions, callPreParse)
+                except ParseBaseException as pe:
+                    # cache a copy of the exception, without the traceback
+                    cache.set(lookup, pe.__class__(*pe.args))
+                    raise
+                else:
+                    cache.set(lookup, (value[0], value[1].copy()))
+                    return value
+            else:
+                ParserElement.packrat_cache_stats[HIT] += 1
+                if isinstance(value, Exception):
+                    raise value
+                return (value[0], value[1].copy())
+
+    _parse = _parseNoCache
+
+    @staticmethod
+    def resetCache():
+        ParserElement.packrat_cache.clear()
+        ParserElement.packrat_cache_stats[:] = [0] * len(ParserElement.packrat_cache_stats)
+
+    _packratEnabled = False
+    @staticmethod
+    def enablePackrat(cache_size_limit=128):
+        """Enables "packrat" parsing, which adds memoizing to the parsing logic.
+           Repeated parse attempts at the same string location (which happens
+           often in many complex grammars) can immediately return a cached value,
+           instead of re-executing parsing/validating code.  Memoizing is done of
+           both valid results and parsing exceptions.
+           
+           Parameters:
+            - cache_size_limit - (default=C{128}) - if an integer value is provided
+              will limit the size of the packrat cache; if None is passed, then
+              the cache size will be unbounded; if 0 is passed, the cache will
+              be effectively disabled.
+            
+           This speedup may break existing programs that use parse actions that
+           have side-effects.  For this reason, packrat parsing is disabled when
+           you first import pyparsing.  To activate the packrat feature, your
+           program must call the class method C{ParserElement.enablePackrat()}.  If
+           your program uses C{psyco} to "compile as you go", you must call
+           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
+           Python will crash.  For best results, call C{enablePackrat()} immediately
+           after importing pyparsing.
+           
+           Example::
+               import pyparsing
+               pyparsing.ParserElement.enablePackrat()
+        """
+        if not ParserElement._packratEnabled:
+            ParserElement._packratEnabled = True
+            if cache_size_limit is None:
+                ParserElement.packrat_cache = ParserElement._UnboundedCache()
+            else:
+                ParserElement.packrat_cache = ParserElement._FifoCache(cache_size_limit)
+            ParserElement._parse = ParserElement._parseCache
+
+    def parseString( self, instring, parseAll=False ):
+        """
+        Execute the parse expression with the given string.
+        This is the main interface to the client code, once the complete
+        expression has been built.
+
+        If you want the grammar to require that the entire input string be
+        successfully parsed, then set C{parseAll} to True (equivalent to ending
+        the grammar with C{L{StringEnd()}}).
+
+        Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
+        in order to report proper column numbers in parse actions.
+        If the input string contains tabs and
+        the grammar uses parse actions that use the C{loc} argument to index into the
+        string being parsed, you can ensure you have a consistent view of the input
+        string by:
+         - calling C{parseWithTabs} on your grammar before calling C{parseString}
+           (see L{I{parseWithTabs}<parseWithTabs>})
+         - define your parse action using the full C{(s,loc,toks)} signature, and
+           reference the input string using the parse action's C{s} argument
+         - explictly expand the tabs in your input string before calling
+           C{parseString}
+        
+        Example::
+            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
+            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
+        """
+        ParserElement.resetCache()
+        if not self.streamlined:
+            self.streamline()
+            #~ self.saveAsList = True
+        for e in self.ignoreExprs:
+            e.streamline()
+        if not self.keepTabs:
+            instring = instring.expandtabs()
+        try:
+            loc, tokens = self._parse( instring, 0 )
+            if parseAll:
+                loc = self.preParse( instring, loc )
+                se = Empty() + StringEnd()
+                se._parse( instring, loc )
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+        else:
+            return tokens
+
+    def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
+        """
+        Scan the input string for expression matches.  Each match will return the
+        matching tokens, start location, and end location.  May be called with optional
+        C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
+        C{overlap} is specified, then overlapping matches will be reported.
+
+        Note that the start and end locations are reported relative to the string
+        being parsed.  See L{I{parseString}<parseString>} for more information on parsing
+        strings with embedded tabs.
+
+        Example::
+            source = "sldjf123lsdjjkf345sldkjf879lkjsfd987"
+            print(source)
+            for tokens,start,end in Word(alphas).scanString(source):
+                print(' '*start + '^'*(end-start))
+                print(' '*start + tokens[0])
+        
+        prints::
+        
+            sldjf123lsdjjkf345sldkjf879lkjsfd987
+            ^^^^^
+            sldjf
+                    ^^^^^^^
+                    lsdjjkf
+                              ^^^^^^
+                              sldkjf
+                                       ^^^^^^
+                                       lkjsfd
+        """
+        if not self.streamlined:
+            self.streamline()
+        for e in self.ignoreExprs:
+            e.streamline()
+
+        if not self.keepTabs:
+            instring = _ustr(instring).expandtabs()
+        instrlen = len(instring)
+        loc = 0
+        preparseFn = self.preParse
+        parseFn = self._parse
+        ParserElement.resetCache()
+        matches = 0
+        try:
+            while loc <= instrlen and matches < maxMatches:
+                try:
+                    preloc = preparseFn( instring, loc )
+                    nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
+                except ParseException:
+                    loc = preloc+1
+                else:
+                    if nextLoc > loc:
+                        matches += 1
+                        yield tokens, preloc, nextLoc
+                        if overlap:
+                            nextloc = preparseFn( instring, loc )
+                            if nextloc > loc:
+                                loc = nextLoc
+                            else:
+                                loc += 1
+                        else:
+                            loc = nextLoc
+                    else:
+                        loc = preloc+1
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def transformString( self, instring ):
+        """
+        Extension to C{L{scanString}}, to modify matching text with modified tokens that may
+        be returned from a parse action.  To use C{transformString}, define a grammar and
+        attach a parse action to it that modifies the returned token list.
+        Invoking C{transformString()} on a target string will then scan for matches,
+        and replace the matched text patterns according to the logic in the parse
+        action.  C{transformString()} returns the resulting transformed string.
+        
+        Example::
+            wd = Word(alphas)
+            wd.setParseAction(lambda toks: toks[0].title())
+            
+            print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york."))
+        Prints::
+            Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York.
+        """
+        out = []
+        lastE = 0
+        # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
+        # keep string locs straight between transformString and scanString
+        self.keepTabs = True
+        try:
+            for t,s,e in self.scanString( instring ):
+                out.append( instring[lastE:s] )
+                if t:
+                    if isinstance(t,ParseResults):
+                        out += t.asList()
+                    elif isinstance(t,list):
+                        out += t
+                    else:
+                        out.append(t)
+                lastE = e
+            out.append(instring[lastE:])
+            out = [o for o in out if o]
+            return "".join(map(_ustr,_flatten(out)))
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def searchString( self, instring, maxMatches=_MAX_INT ):
+        """
+        Another extension to C{L{scanString}}, simplifying the access to the tokens found
+        to match the given parse expression.  May be called with optional
+        C{maxMatches} argument, to clip searching after 'n' matches are found.
+        
+        Example::
+            # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters
+            cap_word = Word(alphas.upper(), alphas.lower())
+            
+            print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))
+        prints::
+            ['More', 'Iron', 'Lead', 'Gold', 'I']
+        """
+        try:
+            return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def split(self, instring, maxsplit=_MAX_INT, includeSeparators=False):
+        """
+        Generator method to split a string using the given expression as a separator.
+        May be called with optional C{maxsplit} argument, to limit the number of splits;
+        and the optional C{includeSeparators} argument (default=C{False}), if the separating
+        matching text should be included in the split results.
+        
+        Example::        
+            punc = oneOf(list(".,;:/-!?"))
+            print(list(punc.split("This, this?, this sentence, is badly punctuated!")))
+        prints::
+            ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
+        """
+        splits = 0
+        last = 0
+        for t,s,e in self.scanString(instring, maxMatches=maxsplit):
+            yield instring[last:s]
+            if includeSeparators:
+                yield t[0]
+            last = e
+        yield instring[last:]
+
+    def __add__(self, other ):
+        """
+        Implementation of + operator - returns C{L{And}}. Adding strings to a ParserElement
+        converts them to L{Literal}s by default.
+        
+        Example::
+            greet = Word(alphas) + "," + Word(alphas) + "!"
+            hello = "Hello, World!"
+            print (hello, "->", greet.parseString(hello))
+        Prints::
+            Hello, World! -> ['Hello', ',', 'World', '!']
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, other ] )
+
+    def __radd__(self, other ):
+        """
+        Implementation of + operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other + self
+
+    def __sub__(self, other):
+        """
+        Implementation of - operator, returns C{L{And}} with error stop
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, And._ErrorStop(), other ] )
+
+    def __rsub__(self, other ):
+        """
+        Implementation of - operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other - self
+
+    def __mul__(self,other):
+        """
+        Implementation of * operator, allows use of C{expr * 3} in place of
+        C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
+        tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
+        may also include C{None} as in:
+         - C{expr*(n,None)} or C{expr*(n,)} is equivalent
+              to C{expr*n + L{ZeroOrMore}(expr)}
+              (read as "at least n instances of C{expr}")
+         - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
+              (read as "0 to n instances of C{expr}")
+         - C{expr*(None,None)} is equivalent to C{L{ZeroOrMore}(expr)}
+         - C{expr*(1,None)} is equivalent to C{L{OneOrMore}(expr)}
+
+        Note that C{expr*(None,n)} does not raise an exception if
+        more than n exprs exist in the input stream; that is,
+        C{expr*(None,n)} does not enforce a maximum number of expr
+        occurrences.  If this behavior is desired, then write
+        C{expr*(None,n) + ~expr}
+        """
+        if isinstance(other,int):
+            minElements, optElements = other,0
+        elif isinstance(other,tuple):
+            other = (other + (None, None))[:2]
+            if other[0] is None:
+                other = (0, other[1])
+            if isinstance(other[0],int) and other[1] is None:
+                if other[0] == 0:
+                    return ZeroOrMore(self)
+                if other[0] == 1:
+                    return OneOrMore(self)
+                else:
+                    return self*other[0] + ZeroOrMore(self)
+            elif isinstance(other[0],int) and isinstance(other[1],int):
+                minElements, optElements = other
+                optElements -= minElements
+            else:
+                raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
+        else:
+            raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
+
+        if minElements < 0:
+            raise ValueError("cannot multiply ParserElement by negative value")
+        if optElements < 0:
+            raise ValueError("second tuple value must be greater or equal to first tuple value")
+        if minElements == optElements == 0:
+            raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
+
+        if (optElements):
+            def makeOptionalList(n):
+                if n>1:
+                    return Optional(self + makeOptionalList(n-1))
+                else:
+                    return Optional(self)
+            if minElements:
+                if minElements == 1:
+                    ret = self + makeOptionalList(optElements)
+                else:
+                    ret = And([self]*minElements) + makeOptionalList(optElements)
+            else:
+                ret = makeOptionalList(optElements)
+        else:
+            if minElements == 1:
+                ret = self
+            else:
+                ret = And([self]*minElements)
+        return ret
+
+    def __rmul__(self, other):
+        return self.__mul__(other)
+
+    def __or__(self, other ):
+        """
+        Implementation of | operator - returns C{L{MatchFirst}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return MatchFirst( [ self, other ] )
+
+    def __ror__(self, other ):
+        """
+        Implementation of | operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other | self
+
+    def __xor__(self, other ):
+        """
+        Implementation of ^ operator - returns C{L{Or}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Or( [ self, other ] )
+
+    def __rxor__(self, other ):
+        """
+        Implementation of ^ operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other ^ self
+
+    def __and__(self, other ):
+        """
+        Implementation of & operator - returns C{L{Each}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Each( [ self, other ] )
+
+    def __rand__(self, other ):
+        """
+        Implementation of & operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other & self
+
+    def __invert__( self ):
+        """
+        Implementation of ~ operator - returns C{L{NotAny}}
+        """
+        return NotAny( self )
+
+    def __call__(self, name=None):
+        """
+        Shortcut for C{L{setResultsName}}, with C{listAllMatches=False}.
+        
+        If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
+        passed as C{True}.
+           
+        If C{name} is omitted, same as calling C{L{copy}}.
+
+        Example::
+            # these are equivalent
+            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
+            userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")             
+        """
+        if name is not None:
+            return self.setResultsName(name)
+        else:
+            return self.copy()
+
+    def suppress( self ):
+        """
+        Suppresses the output of this C{ParserElement}; useful to keep punctuation from
+        cluttering up returned output.
+        """
+        return Suppress( self )
+
+    def leaveWhitespace( self ):
+        """
+        Disables the skipping of whitespace before matching the characters in the
+        C{ParserElement}'s defined pattern.  This is normally only used internally by
+        the pyparsing module, but may be needed in some whitespace-sensitive grammars.
+        """
+        self.skipWhitespace = False
+        return self
+
+    def setWhitespaceChars( self, chars ):
+        """
+        Overrides the default whitespace chars
+        """
+        self.skipWhitespace = True
+        self.whiteChars = chars
+        self.copyDefaultWhiteChars = False
+        return self
+
+    def parseWithTabs( self ):
+        """
+        Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
+        Must be called before C{parseString} when the input grammar contains elements that
+        match C{<TAB>} characters.
+        """
+        self.keepTabs = True
+        return self
+
+    def ignore( self, other ):
+        """
+        Define expression to be ignored (e.g., comments) while doing pattern
+        matching; may be called repeatedly, to define multiple comment or other
+        ignorable patterns.
+        
+        Example::
+            patt = OneOrMore(Word(alphas))
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']
+            
+            patt.ignore(cStyleComment)
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
+        """
+        if isinstance(other, basestring):
+            other = Suppress(other)
+
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                self.ignoreExprs.append(other)
+        else:
+            self.ignoreExprs.append( Suppress( other.copy() ) )
+        return self
+
+    def setDebugActions( self, startAction, successAction, exceptionAction ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        """
+        self.debugActions = (startAction or _defaultStartDebugAction,
+                             successAction or _defaultSuccessDebugAction,
+                             exceptionAction or _defaultExceptionDebugAction)
+        self.debug = True
+        return self
+
+    def setDebug( self, flag=True ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        Set C{flag} to True to enable, False to disable.
+
+        Example::
+            wd = Word(alphas).setName("alphaword")
+            integer = Word(nums).setName("numword")
+            term = wd | integer
+            
+            # turn on debugging for wd
+            wd.setDebug()
+
+            OneOrMore(term).parseString("abc 123 xyz 890")
+        
+        prints::
+            Match alphaword at loc 0(1,1)
+            Matched alphaword -> ['abc']
+            Match alphaword at loc 3(1,4)
+            Exception raised:Expected alphaword (at char 4), (line:1, col:5)
+            Match alphaword at loc 7(1,8)
+            Matched alphaword -> ['xyz']
+            Match alphaword at loc 11(1,12)
+            Exception raised:Expected alphaword (at char 12), (line:1, col:13)
+            Match alphaword at loc 15(1,16)
+            Exception raised:Expected alphaword (at char 15), (line:1, col:16)
+
+        The output shown is that produced by the default debug actions - custom debug actions can be
+        specified using L{setDebugActions}. Prior to attempting
+        to match the C{wd} expression, the debugging message C{"Match <exprname> at loc <n>(<line>,<col>)"}
+        is shown. Then if the parse succeeds, a C{"Matched"} message is shown, or an C{"Exception raised"}
+        message is shown. Also note the use of L{setName} to assign a human-readable name to the expression,
+        which makes debugging and exception messages easier to understand - for instance, the default
+        name created for the C{Word} expression without calling C{setName} is C{"W:(ABCD...)"}.
+        """
+        if flag:
+            self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
+        else:
+            self.debug = False
+        return self
+
+    def __str__( self ):
+        return self.name
+
+    def __repr__( self ):
+        return _ustr(self)
+
+    def streamline( self ):
+        self.streamlined = True
+        self.strRepr = None
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        pass
+
+    def validate( self, validateTrace=[] ):
+        """
+        Check defined expressions for valid structure, check for infinite recursive definitions.
+        """
+        self.checkRecursion( [] )
+
+    def parseFile( self, file_or_filename, parseAll=False ):
+        """
+        Execute the parse expression on the given file or filename.
+        If a filename is specified (instead of a file object),
+        the entire file is opened, read, and closed before parsing.
+        """
+        try:
+            file_contents = file_or_filename.read()
+        except AttributeError:
+            with open(file_or_filename, "r") as f:
+                file_contents = f.read()
+        try:
+            return self.parseString(file_contents, parseAll)
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def __eq__(self,other):
+        if isinstance(other, ParserElement):
+            return self is other or vars(self) == vars(other)
+        elif isinstance(other, basestring):
+            return self.matches(other)
+        else:
+            return super(ParserElement,self)==other
+
+    def __ne__(self,other):
+        return not (self == other)
+
+    def __hash__(self):
+        return hash(id(self))
+
+    def __req__(self,other):
+        return self == other
+
+    def __rne__(self,other):
+        return not (self == other)
+
+    def matches(self, testString, parseAll=True):
+        """
+        Method for quick testing of a parser against a test string. Good for simple 
+        inline microtests of sub expressions while building up larger parser.
+           
+        Parameters:
+         - testString - to test against this expression for a match
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests
+            
+        Example::
+            expr = Word(nums)
+            assert expr.matches("100")
+        """
+        try:
+            self.parseString(_ustr(testString), parseAll=parseAll)
+            return True
+        except ParseBaseException:
+            return False
+                
+    def runTests(self, tests, parseAll=True, comment='#', fullDump=True, printResults=True, failureTests=False):
+        """
+        Execute the parse expression on a series of test strings, showing each
+        test, the parsed results or where the parse failed. Quick and easy way to
+        run a parse expression against a list of sample strings.
+           
+        Parameters:
+         - tests - a list of separate test strings, or a multiline string of test strings
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests           
+         - comment - (default=C{'#'}) - expression for indicating embedded comments in the test 
+              string; pass None to disable comment filtering
+         - fullDump - (default=C{True}) - dump results as list followed by results names in nested outline;
+              if False, only dump nested list
+         - printResults - (default=C{True}) prints test output to stdout
+         - failureTests - (default=C{False}) indicates if these tests are expected to fail parsing
+
+        Returns: a (success, results) tuple, where success indicates that all tests succeeded
+        (or failed if C{failureTests} is True), and the results contain a list of lines of each 
+        test's output
+        
+        Example::
+            number_expr = pyparsing_common.number.copy()
+
+            result = number_expr.runTests('''
+                # unsigned integer
+                100
+                # negative integer
+                -100
+                # float with scientific notation
+                6.02e23
+                # integer with scientific notation
+                1e-12
+                ''')
+            print("Success" if result[0] else "Failed!")
+
+            result = number_expr.runTests('''
+                # stray character
+                100Z
+                # missing leading digit before '.'
+                -.100
+                # too many '.'
+                3.14.159
+                ''', failureTests=True)
+            print("Success" if result[0] else "Failed!")
+        prints::
+            # unsigned integer
+            100
+            [100]
+
+            # negative integer
+            -100
+            [-100]
+
+            # float with scientific notation
+            6.02e23
+            [6.02e+23]
+
+            # integer with scientific notation
+            1e-12
+            [1e-12]
+
+            Success
+            
+            # stray character
+            100Z
+               ^
+            FAIL: Expected end of text (at char 3), (line:1, col:4)
+
+            # missing leading digit before '.'
+            -.100
+            ^
+            FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1)
+
+            # too many '.'
+            3.14.159
+                ^
+            FAIL: Expected end of text (at char 4), (line:1, col:5)
+
+            Success
+
+        Each test string must be on a single line. If you want to test a string that spans multiple
+        lines, create a test like this::
+
+            expr.runTest(r"this is a test\\n of strings that spans \\n 3 lines")
+        
+        (Note that this is a raw string literal, you must include the leading 'r'.)
+        """
+        if isinstance(tests, basestring):
+            tests = list(map(str.strip, tests.rstrip().splitlines()))
+        if isinstance(comment, basestring):
+            comment = Literal(comment)
+        allResults = []
+        comments = []
+        success = True
+        for t in tests:
+            if comment is not None and comment.matches(t, False) or comments and not t:
+                comments.append(t)
+                continue
+            if not t:
+                continue
+            out = ['\n'.join(comments), t]
+            comments = []
+            try:
+                t = t.replace(r'\n','\n')
+                result = self.parseString(t, parseAll=parseAll)
+                out.append(result.dump(full=fullDump))
+                success = success and not failureTests
+            except ParseBaseException as pe:
+                fatal = "(FATAL)" if isinstance(pe, ParseFatalException) else ""
+                if '\n' in t:
+                    out.append(line(pe.loc, t))
+                    out.append(' '*(col(pe.loc,t)-1) + '^' + fatal)
+                else:
+                    out.append(' '*pe.loc + '^' + fatal)
+                out.append("FAIL: " + str(pe))
+                success = success and failureTests
+                result = pe
+            except Exception as exc:
+                out.append("FAIL-EXCEPTION: " + str(exc))
+                success = success and failureTests
+                result = exc
+
+            if printResults:
+                if fullDump:
+                    out.append('')
+                print('\n'.join(out))
+
+            allResults.append((t, result))
+        
+        return success, allResults
+
+        
+class Token(ParserElement):
+    """
+    Abstract C{ParserElement} subclass, for defining atomic matching patterns.
+    """
+    def __init__( self ):
+        super(Token,self).__init__( savelist=False )
+
+
+class Empty(Token):
+    """
+    An empty token, will always match.
+    """
+    def __init__( self ):
+        super(Empty,self).__init__()
+        self.name = "Empty"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+
+class NoMatch(Token):
+    """
+    A token that will never match.
+    """
+    def __init__( self ):
+        super(NoMatch,self).__init__()
+        self.name = "NoMatch"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.errmsg = "Unmatchable token"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Literal(Token):
+    """
+    Token to exactly match a specified string.
+    
+    Example::
+        Literal('blah').parseString('blah')  # -> ['blah']
+        Literal('blah').parseString('blahfooblah')  # -> ['blah']
+        Literal('blah').parseString('bla')  # -> Exception: Expected "blah"
+    
+    For case-insensitive matching, use L{CaselessLiteral}.
+    
+    For keyword matching (force word break before and after the matched string),
+    use L{Keyword} or L{CaselessKeyword}.
+    """
+    def __init__( self, matchString ):
+        super(Literal,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Literal; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+            self.__class__ = Empty
+        self.name = '"%s"' % _ustr(self.match)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+
+    # Performance tuning: this routine gets called a *lot*
+    # if this is a single character match string  and the first character matches,
+    # short-circuit as quickly as possible, and avoid calling startswith
+    #~ @profile
+    def parseImpl( self, instring, loc, doActions=True ):
+        if (instring[loc] == self.firstMatchChar and
+            (self.matchLen==1 or instring.startswith(self.match,loc)) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+_L = Literal
+ParserElement._literalStringClass = Literal
+
+class Keyword(Token):
+    """
+    Token to exactly match a specified string as a keyword, that is, it must be
+    immediately followed by a non-keyword character.  Compare with C{L{Literal}}:
+     - C{Literal("if")} will match the leading C{'if'} in C{'ifAndOnlyIf'}.
+     - C{Keyword("if")} will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
+    Accepts two optional constructor arguments in addition to the keyword string:
+     - C{identChars} is a string of characters that would be valid identifier characters,
+          defaulting to all alphanumerics + "_" and "$"
+     - C{caseless} allows case-insensitive matching, default is C{False}.
+       
+    Example::
+        Keyword("start").parseString("start")  # -> ['start']
+        Keyword("start").parseString("starting")  # -> Exception
+
+    For case-insensitive matching, use L{CaselessKeyword}.
+    """
+    DEFAULT_KEYWORD_CHARS = alphanums+"_$"
+
+    def __init__( self, matchString, identChars=None, caseless=False ):
+        super(Keyword,self).__init__()
+        if identChars is None:
+            identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Keyword; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+        self.name = '"%s"' % self.match
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+        self.caseless = caseless
+        if caseless:
+            self.caselessmatch = matchString.upper()
+            identChars = identChars.upper()
+        self.identChars = set(identChars)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.caseless:
+            if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+                 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
+                 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        else:
+            if (instring[loc] == self.firstMatchChar and
+                (self.matchLen==1 or instring.startswith(self.match,loc)) and
+                (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
+                (loc == 0 or instring[loc-1] not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+    def copy(self):
+        c = super(Keyword,self).copy()
+        c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        return c
+
+    @staticmethod
+    def setDefaultKeywordChars( chars ):
+        """Overrides the default Keyword chars
+        """
+        Keyword.DEFAULT_KEYWORD_CHARS = chars
+
+class CaselessLiteral(Literal):
+    """
+    Token to match a specified string, ignoring case of letters.
+    Note: the matched results will always be in the case of the given
+    match string, NOT the case of the input text.
+
+    Example::
+        OneOrMore(CaselessLiteral("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessKeyword}.)
+    """
+    def __init__( self, matchString ):
+        super(CaselessLiteral,self).__init__( matchString.upper() )
+        # Preserve the defining literal.
+        self.returnString = matchString
+        self.name = "'%s'" % self.returnString
+        self.errmsg = "Expected " + self.name
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[ loc:loc+self.matchLen ].upper() == self.match:
+            return loc+self.matchLen, self.returnString
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CaselessKeyword(Keyword):
+    """
+    Caseless version of L{Keyword}.
+
+    Example::
+        OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessLiteral}.)
+    """
+    def __init__( self, matchString, identChars=None ):
+        super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+             (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CloseMatch(Token):
+    """
+    A variation on L{Literal} which matches "close" matches, that is, 
+    strings with at most 'n' mismatching characters. C{CloseMatch} takes parameters:
+     - C{match_string} - string to be matched
+     - C{maxMismatches} - (C{default=1}) maximum number of mismatches allowed to count as a match
+    
+    The results from a successful parse will contain the matched text from the input string and the following named results:
+     - C{mismatches} - a list of the positions within the match_string where mismatches were found
+     - C{original} - the original match_string used to compare against the input string
+    
+    If C{mismatches} is an empty list, then the match was an exact match.
+    
+    Example::
+        patt = CloseMatch("ATCATCGAATGGA")
+        patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']})
+        patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1)
+
+        # exact match
+        patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']})
+
+        # close match allowing up to 2 mismatches
+        patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2)
+        patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']})
+    """
+    def __init__(self, match_string, maxMismatches=1):
+        super(CloseMatch,self).__init__()
+        self.name = match_string
+        self.match_string = match_string
+        self.maxMismatches = maxMismatches
+        self.errmsg = "Expected %r (with up to %d mismatches)" % (self.match_string, self.maxMismatches)
+        self.mayIndexError = False
+        self.mayReturnEmpty = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        start = loc
+        instrlen = len(instring)
+        maxloc = start + len(self.match_string)
+
+        if maxloc <= instrlen:
+            match_string = self.match_string
+            match_stringloc = 0
+            mismatches = []
+            maxMismatches = self.maxMismatches
+
+            for match_stringloc,s_m in enumerate(zip(instring[loc:maxloc], self.match_string)):
+                src,mat = s_m
+                if src != mat:
+                    mismatches.append(match_stringloc)
+                    if len(mismatches) > maxMismatches:
+                        break
+            else:
+                loc = match_stringloc + 1
+                results = ParseResults([instring[start:loc]])
+                results['original'] = self.match_string
+                results['mismatches'] = mismatches
+                return loc, results
+
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Word(Token):
+    """
+    Token for matching words composed of allowed character sets.
+    Defined with string containing all allowed initial characters,
+    an optional string containing allowed body characters (if omitted,
+    defaults to the initial character set), and an optional minimum,
+    maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction. An optional
+    C{excludeChars} parameter can list characters that might be found in 
+    the input C{bodyChars} string; useful to define a word of all printables
+    except for one or two characters, for instance.
+    
+    L{srange} is useful for defining custom character set strings for defining 
+    C{Word} expressions, using range notation from regular expression character sets.
+    
+    A common mistake is to use C{Word} to match a specific literal string, as in 
+    C{Word("Address")}. Remember that C{Word} uses the string argument to define
+    I{sets} of matchable characters. This expression would match "Add", "AAA",
+    "dAred", or any other word made up of the characters 'A', 'd', 'r', 'e', and 's'.
+    To match an exact literal string, use L{Literal} or L{Keyword}.
+
+    pyparsing includes helper strings for building Words:
+     - L{alphas}
+     - L{nums}
+     - L{alphanums}
+     - L{hexnums}
+     - L{alphas8bit} (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.)
+     - L{punc8bit} (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.)
+     - L{printables} (any non-whitespace character)
+
+    Example::
+        # a word composed of digits
+        integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9"))
+        
+        # a word with a leading capital, and zero or more lowercase
+        capital_word = Word(alphas.upper(), alphas.lower())
+
+        # hostnames are alphanumeric, with leading alpha, and '-'
+        hostname = Word(alphas, alphanums+'-')
+        
+        # roman numeral (not a strict parser, accepts invalid mix of characters)
+        roman = Word("IVXLCDM")
+        
+        # any string of non-whitespace characters, except for ','
+        csv_value = Word(printables, excludeChars=",")
+    """
+    def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
+        super(Word,self).__init__()
+        if excludeChars:
+            initChars = ''.join(c for c in initChars if c not in excludeChars)
+            if bodyChars:
+                bodyChars = ''.join(c for c in bodyChars if c not in excludeChars)
+        self.initCharsOrig = initChars
+        self.initChars = set(initChars)
+        if bodyChars :
+            self.bodyCharsOrig = bodyChars
+            self.bodyChars = set(bodyChars)
+        else:
+            self.bodyCharsOrig = initChars
+            self.bodyChars = set(initChars)
+
+        self.maxSpecified = max > 0
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.asKeyword = asKeyword
+
+        if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
+            if self.bodyCharsOrig == self.initCharsOrig:
+                self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
+            elif len(self.initCharsOrig) == 1:
+                self.reString = "%s[%s]*" % \
+                                      (re.escape(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            else:
+                self.reString = "[%s][%s]*" % \
+                                      (_escapeRegexRangeChars(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            if self.asKeyword:
+                self.reString = r"\b"+self.reString+r"\b"
+            try:
+                self.re = re.compile( self.reString )
+            except Exception:
+                self.re = None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.re:
+            result = self.re.match(instring,loc)
+            if not result:
+                raise ParseException(instring, loc, self.errmsg, self)
+
+            loc = result.end()
+            return loc, result.group()
+
+        if not(instring[ loc ] in self.initChars):
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        instrlen = len(instring)
+        bodychars = self.bodyChars
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, instrlen )
+        while loc < maxloc and instring[loc] in bodychars:
+            loc += 1
+
+        throwException = False
+        if loc - start < self.minLen:
+            throwException = True
+        if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
+            throwException = True
+        if self.asKeyword:
+            if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
+                throwException = True
+
+        if throwException:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(Word,self).__str__()
+        except Exception:
+            pass
+
+
+        if self.strRepr is None:
+
+            def charsAsStr(s):
+                if len(s)>4:
+                    return s[:4]+"..."
+                else:
+                    return s
+
+            if ( self.initCharsOrig != self.bodyCharsOrig ):
+                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
+            else:
+                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
+
+        return self.strRepr
+
+
+class Regex(Token):
+    """
+    Token for matching strings that match a given regular expression.
+    Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
+    If the given regex contains named groups (defined using C{(?P<name>...)}), these will be preserved as 
+    named parse results.
+
+    Example::
+        realnum = Regex(r"[+-]?\d+\.\d*")
+        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
+        # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
+        roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")
+    """
+    compiledREtype = type(re.compile("[A-Z]"))
+    def __init__( self, pattern, flags=0):
+        """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
+        super(Regex,self).__init__()
+
+        if isinstance(pattern, basestring):
+            if not pattern:
+                warnings.warn("null string passed to Regex; use Empty() instead",
+                        SyntaxWarning, stacklevel=2)
+
+            self.pattern = pattern
+            self.flags = flags
+
+            try:
+                self.re = re.compile(self.pattern, self.flags)
+                self.reString = self.pattern
+            except sre_constants.error:
+                warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
+                    SyntaxWarning, stacklevel=2)
+                raise
+
+        elif isinstance(pattern, Regex.compiledREtype):
+            self.re = pattern
+            self.pattern = \
+            self.reString = str(pattern)
+            self.flags = flags
+            
+        else:
+            raise ValueError("Regex may only be constructed with a string or a compiled RE object")
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = self.re.match(instring,loc)
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        d = result.groupdict()
+        ret = ParseResults(result.group())
+        if d:
+            for k in d:
+                ret[k] = d[k]
+        return loc,ret
+
+    def __str__( self ):
+        try:
+            return super(Regex,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "Re:(%s)" % repr(self.pattern)
+
+        return self.strRepr
+
+
+class QuotedString(Token):
+    r"""
+    Token for matching strings that are delimited by quoting characters.
+    
+    Defined with the following parameters:
+        - quoteChar - string of one or more characters defining the quote delimiting string
+        - escChar - character to escape quotes, typically backslash (default=C{None})
+        - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=C{None})
+        - multiline - boolean indicating whether quotes can span multiple lines (default=C{False})
+        - unquoteResults - boolean indicating whether the matched text should be unquoted (default=C{True})
+        - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=C{None} => same as quoteChar)
+        - convertWhitespaceEscapes - convert escaped whitespace (C{'\t'}, C{'\n'}, etc.) to actual whitespace (default=C{True})
+
+    Example::
+        qs = QuotedString('"')
+        print(qs.searchString('lsjdf "This is the quote" sldjf'))
+        complex_qs = QuotedString('{{', endQuoteChar='}}')
+        print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf'))
+        sql_qs = QuotedString('"', escQuote='""')
+        print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf'))
+    prints::
+        [['This is the quote']]
+        [['This is the "quote"']]
+        [['This is the quote with "embedded" quotes']]
+    """
+    def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None, convertWhitespaceEscapes=True):
+        super(QuotedString,self).__init__()
+
+        # remove white space from quote chars - wont work anyway
+        quoteChar = quoteChar.strip()
+        if not quoteChar:
+            warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+            raise SyntaxError()
+
+        if endQuoteChar is None:
+            endQuoteChar = quoteChar
+        else:
+            endQuoteChar = endQuoteChar.strip()
+            if not endQuoteChar:
+                warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+                raise SyntaxError()
+
+        self.quoteChar = quoteChar
+        self.quoteCharLen = len(quoteChar)
+        self.firstQuoteChar = quoteChar[0]
+        self.endQuoteChar = endQuoteChar
+        self.endQuoteCharLen = len(endQuoteChar)
+        self.escChar = escChar
+        self.escQuote = escQuote
+        self.unquoteResults = unquoteResults
+        self.convertWhitespaceEscapes = convertWhitespaceEscapes
+
+        if multiline:
+            self.flags = re.MULTILINE | re.DOTALL
+            self.pattern = r'%s(?:[^%s%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        else:
+            self.flags = 0
+            self.pattern = r'%s(?:[^%s\n\r%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        if len(self.endQuoteChar) > 1:
+            self.pattern += (
+                '|(?:' + ')|(?:'.join("%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
+                                               _escapeRegexRangeChars(self.endQuoteChar[i]))
+                                    for i in range(len(self.endQuoteChar)-1,0,-1)) + ')'
+                )
+        if escQuote:
+            self.pattern += (r'|(?:%s)' % re.escape(escQuote))
+        if escChar:
+            self.pattern += (r'|(?:%s.)' % re.escape(escChar))
+            self.escCharReplacePattern = re.escape(self.escChar)+"(.)"
+        self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
+
+        try:
+            self.re = re.compile(self.pattern, self.flags)
+            self.reString = self.pattern
+        except sre_constants.error:
+            warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
+                SyntaxWarning, stacklevel=2)
+            raise
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        ret = result.group()
+
+        if self.unquoteResults:
+
+            # strip off quotes
+            ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
+
+            if isinstance(ret,basestring):
+                # replace escaped whitespace
+                if '\\' in ret and self.convertWhitespaceEscapes:
+                    ws_map = {
+                        r'\t' : '\t',
+                        r'\n' : '\n',
+                        r'\f' : '\f',
+                        r'\r' : '\r',
+                    }
+                    for wslit,wschar in ws_map.items():
+                        ret = ret.replace(wslit, wschar)
+
+                # replace escaped characters
+                if self.escChar:
+                    ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
+
+                # replace escaped quotes
+                if self.escQuote:
+                    ret = ret.replace(self.escQuote, self.endQuoteChar)
+
+        return loc, ret
+
+    def __str__( self ):
+        try:
+            return super(QuotedString,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
+
+        return self.strRepr
+
+
+class CharsNotIn(Token):
+    """
+    Token for matching words composed of characters I{not} in a given set (will
+    include whitespace in matched characters if not listed in the provided exclusion set - see example).
+    Defined with string containing all disallowed characters, and an optional
+    minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction.
+
+    Example::
+        # define a comma-separated-value as anything that is not a ','
+        csv_value = CharsNotIn(',')
+        print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213"))
+    prints::
+        ['dkls', 'lsdkjf', 's12 34', '@!#', '213']
+    """
+    def __init__( self, notChars, min=1, max=0, exact=0 ):
+        super(CharsNotIn,self).__init__()
+        self.skipWhitespace = False
+        self.notChars = notChars
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = ( self.minLen == 0 )
+        self.mayIndexError = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[loc] in self.notChars:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        notchars = self.notChars
+        maxlen = min( start+self.maxLen, len(instring) )
+        while loc < maxlen and \
+              (instring[loc] not in notchars):
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(CharsNotIn, self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            if len(self.notChars) > 4:
+                self.strRepr = "!W:(%s...)" % self.notChars[:4]
+            else:
+                self.strRepr = "!W:(%s)" % self.notChars
+
+        return self.strRepr
+
+class White(Token):
+    """
+    Special matching class for matching whitespace.  Normally, whitespace is ignored
+    by pyparsing grammars.  This class is included when some whitespace structures
+    are significant.  Define with a string containing the whitespace characters to be
+    matched; default is C{" \\t\\r\\n"}.  Also takes optional C{min}, C{max}, and C{exact} arguments,
+    as defined for the C{L{Word}} class.
+    """
+    whiteStrs = {
+        " " : "<SPC>",
+        "\t": "<TAB>",
+        "\n": "<LF>",
+        "\r": "<CR>",
+        "\f": "<FF>",
+        }
+    def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
+        super(White,self).__init__()
+        self.matchWhite = ws
+        self.setWhitespaceChars( "".join(c for c in self.whiteChars if c not in self.matchWhite) )
+        #~ self.leaveWhitespace()
+        self.name = ("".join(White.whiteStrs[c] for c in self.matchWhite))
+        self.mayReturnEmpty = True
+        self.errmsg = "Expected " + self.name
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not(instring[ loc ] in self.matchWhite):
+            raise ParseException(instring, loc, self.errmsg, self)
+        start = loc
+        loc += 1
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, len(instring) )
+        while loc < maxloc and instring[loc] in self.matchWhite:
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+
+class _PositionToken(Token):
+    def __init__( self ):
+        super(_PositionToken,self).__init__()
+        self.name=self.__class__.__name__
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+class GoToColumn(_PositionToken):
+    """
+    Token to advance to a specific column of input text; useful for tabular report scraping.
+    """
+    def __init__( self, colno ):
+        super(GoToColumn,self).__init__()
+        self.col = colno
+
+    def preParse( self, instring, loc ):
+        if col(loc,instring) != self.col:
+            instrlen = len(instring)
+            if self.ignoreExprs:
+                loc = self._skipIgnorables( instring, loc )
+            while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
+                loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        thiscol = col( loc, instring )
+        if thiscol > self.col:
+            raise ParseException( instring, loc, "Text not in expected column", self )
+        newloc = loc + self.col - thiscol
+        ret = instring[ loc: newloc ]
+        return newloc, ret
+
+
+class LineStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of a line within the parse string
+    
+    Example::
+    
+        test = '''\
+        AAA this line
+        AAA and this line
+          AAA but not this one
+        B AAA and definitely not this one
+        '''
+
+        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
+            print(t)
+    
+    Prints::
+        ['AAA', ' this line']
+        ['AAA', ' and this line']    
+
+    """
+    def __init__( self ):
+        super(LineStart,self).__init__()
+        self.errmsg = "Expected start of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if col(loc, instring) == 1:
+            return loc, []
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class LineEnd(_PositionToken):
+    """
+    Matches if current position is at the end of a line within the parse string
+    """
+    def __init__( self ):
+        super(LineEnd,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected end of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc<len(instring):
+            if instring[loc] == "\n":
+                return loc+1, "\n"
+            else:
+                raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class StringStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of the parse string
+    """
+    def __init__( self ):
+        super(StringStart,self).__init__()
+        self.errmsg = "Expected start of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc != 0:
+            # see if entire string up to here is just whitespace and ignoreables
+            if loc != self.preParse( instring, 0 ):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class StringEnd(_PositionToken):
+    """
+    Matches if current position is at the end of the parse string
+    """
+    def __init__( self ):
+        super(StringEnd,self).__init__()
+        self.errmsg = "Expected end of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc < len(instring):
+            raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        elif loc > len(instring):
+            return loc, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class WordStart(_PositionToken):
+    """
+    Matches if the current position is at the beginning of a Word, and
+    is not preceded by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
+    the string being parsed, or at the beginning of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordStart,self).__init__()
+        self.wordChars = set(wordChars)
+        self.errmsg = "Not at the start of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        if loc != 0:
+            if (instring[loc-1] in self.wordChars or
+                instring[loc] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class WordEnd(_PositionToken):
+    """
+    Matches if the current position is at the end of a Word, and
+    is not followed by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
+    the string being parsed, or at the end of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordEnd,self).__init__()
+        self.wordChars = set(wordChars)
+        self.skipWhitespace = False
+        self.errmsg = "Not at the end of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        instrlen = len(instring)
+        if instrlen>0 and loc<instrlen:
+            if (instring[loc] in self.wordChars or
+                instring[loc-1] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+
+class ParseExpression(ParserElement):
+    """
+    Abstract subclass of ParserElement, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(ParseExpression,self).__init__(savelist)
+        if isinstance( exprs, _generatorType ):
+            exprs = list(exprs)
+
+        if isinstance( exprs, basestring ):
+            self.exprs = [ ParserElement._literalStringClass( exprs ) ]
+        elif isinstance( exprs, collections.Iterable ):
+            exprs = list(exprs)
+            # if sequence of strings provided, wrap with Literal
+            if all(isinstance(expr, basestring) for expr in exprs):
+                exprs = map(ParserElement._literalStringClass, exprs)
+            self.exprs = list(exprs)
+        else:
+            try:
+                self.exprs = list( exprs )
+            except TypeError:
+                self.exprs = [ exprs ]
+        self.callPreparse = False
+
+    def __getitem__( self, i ):
+        return self.exprs[i]
+
+    def append( self, other ):
+        self.exprs.append( other )
+        self.strRepr = None
+        return self
+
+    def leaveWhitespace( self ):
+        """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
+           all contained expressions."""
+        self.skipWhitespace = False
+        self.exprs = [ e.copy() for e in self.exprs ]
+        for e in self.exprs:
+            e.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseExpression, self).ignore( other )
+                for e in self.exprs:
+                    e.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseExpression, self).ignore( other )
+            for e in self.exprs:
+                e.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def __str__( self ):
+        try:
+            return super(ParseExpression,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
+        return self.strRepr
+
+    def streamline( self ):
+        super(ParseExpression,self).streamline()
+
+        for e in self.exprs:
+            e.streamline()
+
+        # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
+        # but only if there are no parse actions or resultsNames on the nested And's
+        # (likewise for Or's and MatchFirst's)
+        if ( len(self.exprs) == 2 ):
+            other = self.exprs[0]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = other.exprs[:] + [ self.exprs[1] ]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+            other = self.exprs[-1]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = self.exprs[:-1] + other.exprs[:]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+        self.errmsg = "Expected " + _ustr(self)
+        
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
+        return ret
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        for e in self.exprs:
+            e.validate(tmp)
+        self.checkRecursion( [] )
+        
+    def copy(self):
+        ret = super(ParseExpression,self).copy()
+        ret.exprs = [e.copy() for e in self.exprs]
+        return ret
+
+class And(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found in the given order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'+'} operator.
+    May also be constructed using the C{'-'} operator, which will suppress backtracking.
+
+    Example::
+        integer = Word(nums)
+        name_expr = OneOrMore(Word(alphas))
+
+        expr = And([integer("id"),name_expr("name"),integer("age")])
+        # more easily written as:
+        expr = integer("id") + name_expr("name") + integer("age")
+    """
+
+    class _ErrorStop(Empty):
+        def __init__(self, *args, **kwargs):
+            super(And._ErrorStop,self).__init__(*args, **kwargs)
+            self.name = '-'
+            self.leaveWhitespace()
+
+    def __init__( self, exprs, savelist = True ):
+        super(And,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.setWhitespaceChars( self.exprs[0].whiteChars )
+        self.skipWhitespace = self.exprs[0].skipWhitespace
+        self.callPreparse = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        # pass False as last arg to _parse for first element, since we already
+        # pre-parsed the string as part of our And pre-parsing
+        loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
+        errorStop = False
+        for e in self.exprs[1:]:
+            if isinstance(e, And._ErrorStop):
+                errorStop = True
+                continue
+            if errorStop:
+                try:
+                    loc, exprtokens = e._parse( instring, loc, doActions )
+                except ParseSyntaxException:
+                    raise
+                except ParseBaseException as pe:
+                    pe.__traceback__ = None
+                    raise ParseSyntaxException._from_exception(pe)
+                except IndexError:
+                    raise ParseSyntaxException(instring, len(instring), self.errmsg, self)
+            else:
+                loc, exprtokens = e._parse( instring, loc, doActions )
+            if exprtokens or exprtokens.haskeys():
+                resultlist += exprtokens
+        return loc, resultlist
+
+    def __iadd__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #And( [ self, other ] )
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+            if not e.mayReturnEmpty:
+                break
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+
+class Or(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the expression that matches the longest string will be used.
+    May be constructed using the C{'^'} operator.
+
+    Example::
+        # construct Or using '^' operator
+        
+        number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789"))
+    prints::
+        [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(Or,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        matches = []
+        for e in self.exprs:
+            try:
+                loc2 = e.tryParse( instring, loc )
+            except ParseException as err:
+                err.__traceback__ = None
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+            else:
+                # save match among all matches, to retry longest to shortest
+                matches.append((loc2, e))
+
+        if matches:
+            matches.sort(key=lambda x: -x[0])
+            for _,e in matches:
+                try:
+                    return e._parse( instring, loc, doActions )
+                except ParseException as err:
+                    err.__traceback__ = None
+                    if err.loc > maxExcLoc:
+                        maxException = err
+                        maxExcLoc = err.loc
+
+        if maxException is not None:
+            maxException.msg = self.errmsg
+            raise maxException
+        else:
+            raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+
+    def __ixor__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #Or( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ^ ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class MatchFirst(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the first one listed is the one that will match.
+    May be constructed using the C{'|'} operator.
+
+    Example::
+        # construct MatchFirst using '|' operator
+        
+        # watch the order of expressions to match
+        number = Word(nums) | Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789")) #  Fail! -> [['123'], ['3'], ['1416'], ['789']]
+
+        # put more selective expression first
+        number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums)
+        print(number.searchString("123 3.1416 789")) #  Better -> [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(MatchFirst,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                ret = e._parse( instring, loc, doActions )
+                return ret
+            except ParseException as err:
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+
+        # only got here if no expression matched, raise exception for match that made it the furthest
+        else:
+            if maxException is not None:
+                maxException.msg = self.errmsg
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+    def __ior__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #MatchFirst( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " | ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class Each(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found, but in any order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'&'} operator.
+
+    Example::
+        color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN")
+        shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON")
+        integer = Word(nums)
+        shape_attr = "shape:" + shape_type("shape")
+        posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn")
+        color_attr = "color:" + color("color")
+        size_attr = "size:" + integer("size")
+
+        # use Each (using operator '&') to accept attributes in any order 
+        # (shape and posn are required, color and size are optional)
+        shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr)
+
+        shape_spec.runTests('''
+            shape: SQUARE color: BLACK posn: 100, 120
+            shape: CIRCLE size: 50 color: BLUE posn: 50,80
+            color:GREEN size:20 shape:TRIANGLE posn:20,40
+            '''
+            )
+    prints::
+        shape: SQUARE color: BLACK posn: 100, 120
+        ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']]
+        - color: BLACK
+        - posn: ['100', ',', '120']
+          - x: 100
+          - y: 120
+        - shape: SQUARE
+
+
+        shape: CIRCLE size: 50 color: BLUE posn: 50,80
+        ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']]
+        - color: BLUE
+        - posn: ['50', ',', '80']
+          - x: 50
+          - y: 80
+        - shape: CIRCLE
+        - size: 50
+
+
+        color: GREEN size: 20 shape: TRIANGLE posn: 20,40
+        ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']]
+        - color: GREEN
+        - posn: ['20', ',', '40']
+          - x: 20
+          - y: 40
+        - shape: TRIANGLE
+        - size: 20
+    """
+    def __init__( self, exprs, savelist = True ):
+        super(Each,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.skipWhitespace = True
+        self.initExprGroups = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.initExprGroups:
+            self.opt1map = dict((id(e.expr),e) for e in self.exprs if isinstance(e,Optional))
+            opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
+            opt2 = [ e for e in self.exprs if e.mayReturnEmpty and not isinstance(e,Optional)]
+            self.optionals = opt1 + opt2
+            self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
+            self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
+            self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
+            self.required += self.multirequired
+            self.initExprGroups = False
+        tmpLoc = loc
+        tmpReqd = self.required[:]
+        tmpOpt  = self.optionals[:]
+        matchOrder = []
+
+        keepMatching = True
+        while keepMatching:
+            tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
+            failed = []
+            for e in tmpExprs:
+                try:
+                    tmpLoc = e.tryParse( instring, tmpLoc )
+                except ParseException:
+                    failed.append(e)
+                else:
+                    matchOrder.append(self.opt1map.get(id(e),e))
+                    if e in tmpReqd:
+                        tmpReqd.remove(e)
+                    elif e in tmpOpt:
+                        tmpOpt.remove(e)
+            if len(failed) == len(tmpExprs):
+                keepMatching = False
+
+        if tmpReqd:
+            missing = ", ".join(_ustr(e) for e in tmpReqd)
+            raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
+
+        # add any unmatched Optionals, in case they have default values defined
+        matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
+
+        resultlist = []
+        for e in matchOrder:
+            loc,results = e._parse(instring,loc,doActions)
+            resultlist.append(results)
+
+        finalResults = sum(resultlist, ParseResults([]))
+        return loc, finalResults
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " & ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class ParseElementEnhance(ParserElement):
+    """
+    Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(ParseElementEnhance,self).__init__(savelist)
+        if isinstance( expr, basestring ):
+            if issubclass(ParserElement._literalStringClass, Token):
+                expr = ParserElement._literalStringClass(expr)
+            else:
+                expr = ParserElement._literalStringClass(Literal(expr))
+        self.expr = expr
+        self.strRepr = None
+        if expr is not None:
+            self.mayIndexError = expr.mayIndexError
+            self.mayReturnEmpty = expr.mayReturnEmpty
+            self.setWhitespaceChars( expr.whiteChars )
+            self.skipWhitespace = expr.skipWhitespace
+            self.saveAsList = expr.saveAsList
+            self.callPreparse = expr.callPreparse
+            self.ignoreExprs.extend(expr.ignoreExprs)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr is not None:
+            return self.expr._parse( instring, loc, doActions, callPreParse=False )
+        else:
+            raise ParseException("",loc,self.errmsg,self)
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        self.expr = self.expr.copy()
+        if self.expr is not None:
+            self.expr.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseElementEnhance, self).ignore( other )
+                if self.expr is not None:
+                    self.expr.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseElementEnhance, self).ignore( other )
+            if self.expr is not None:
+                self.expr.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def streamline( self ):
+        super(ParseElementEnhance,self).streamline()
+        if self.expr is not None:
+            self.expr.streamline()
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        if self in parseElementList:
+            raise RecursiveGrammarException( parseElementList+[self] )
+        subRecCheckList = parseElementList[:] + [ self ]
+        if self.expr is not None:
+            self.expr.checkRecursion( subRecCheckList )
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        if self.expr is not None:
+            self.expr.validate(tmp)
+        self.checkRecursion( [] )
+
+    def __str__( self ):
+        try:
+            return super(ParseElementEnhance,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None and self.expr is not None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
+        return self.strRepr
+
+
+class FollowedBy(ParseElementEnhance):
+    """
+    Lookahead matching of the given parse expression.  C{FollowedBy}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression matches at the current
+    position.  C{FollowedBy} always returns a null token list.
+
+    Example::
+        # use FollowedBy to match a label only if it is followed by a ':'
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint()
+    prints::
+        [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']]
+    """
+    def __init__( self, expr ):
+        super(FollowedBy,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self.expr.tryParse( instring, loc )
+        return loc, []
+
+
+class NotAny(ParseElementEnhance):
+    """
+    Lookahead to disallow matching with the given parse expression.  C{NotAny}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression does I{not} match at the current
+    position.  Also, C{NotAny} does I{not} skip over leading whitespace. C{NotAny}
+    always returns a null token list.  May be constructed using the '~' operator.
+
+    Example::
+        
+    """
+    def __init__( self, expr ):
+        super(NotAny,self).__init__(expr)
+        #~ self.leaveWhitespace()
+        self.skipWhitespace = False  # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
+        self.mayReturnEmpty = True
+        self.errmsg = "Found unwanted token, "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr.canParseNext(instring, loc):
+            raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "~{" + _ustr(self.expr) + "}"
+
+        return self.strRepr
+
+class _MultipleMatch(ParseElementEnhance):
+    def __init__( self, expr, stopOn=None):
+        super(_MultipleMatch, self).__init__(expr)
+        self.saveAsList = True
+        ender = stopOn
+        if isinstance(ender, basestring):
+            ender = ParserElement._literalStringClass(ender)
+        self.not_ender = ~ender if ender is not None else None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self_expr_parse = self.expr._parse
+        self_skip_ignorables = self._skipIgnorables
+        check_ender = self.not_ender is not None
+        if check_ender:
+            try_not_ender = self.not_ender.tryParse
+        
+        # must be at least one (but first see if we are the stopOn sentinel;
+        # if so, fail)
+        if check_ender:
+            try_not_ender(instring, loc)
+        loc, tokens = self_expr_parse( instring, loc, doActions, callPreParse=False )
+        try:
+            hasIgnoreExprs = (not not self.ignoreExprs)
+            while 1:
+                if check_ender:
+                    try_not_ender(instring, loc)
+                if hasIgnoreExprs:
+                    preloc = self_skip_ignorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self_expr_parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.haskeys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+        
+class OneOrMore(_MultipleMatch):
+    """
+    Repetition of one or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match one or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: BLACK"
+        OneOrMore(attr_expr).parseString(text).pprint()  # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']]
+
+        # use stopOn attribute for OneOrMore to avoid reading label string as part of the data
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']]
+        
+        # could also be written as
+        (attr_expr * (1,)).parseString(text).pprint()
+    """
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + _ustr(self.expr) + "}..."
+
+        return self.strRepr
+
+class ZeroOrMore(_MultipleMatch):
+    """
+    Optional repetition of zero or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match zero or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example: similar to L{OneOrMore}
+    """
+    def __init__( self, expr, stopOn=None):
+        super(ZeroOrMore,self).__init__(expr, stopOn=stopOn)
+        self.mayReturnEmpty = True
+        
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            return super(ZeroOrMore, self).parseImpl(instring, loc, doActions)
+        except (ParseException,IndexError):
+            return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]..."
+
+        return self.strRepr
+
+class _NullToken(object):
+    def __bool__(self):
+        return False
+    __nonzero__ = __bool__
+    def __str__(self):
+        return ""
+
+_optionalNotMatched = _NullToken()
+class Optional(ParseElementEnhance):
+    """
+    Optional matching of the given expression.
+
+    Parameters:
+     - expr - expression that must match zero or more times
+     - default (optional) - value to be returned if the optional expression is not found.
+
+    Example::
+        # US postal code can be a 5-digit zip, plus optional 4-digit qualifier
+        zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4)))
+        zip.runTests('''
+            # traditional ZIP code
+            12345
+            
+            # ZIP+4 form
+            12101-0001
+            
+            # invalid ZIP
+            98765-
+            ''')
+    prints::
+        # traditional ZIP code
+        12345
+        ['12345']
+
+        # ZIP+4 form
+        12101-0001
+        ['12101-0001']
+
+        # invalid ZIP
+        98765-
+             ^
+        FAIL: Expected end of text (at char 5), (line:1, col:6)
+    """
+    def __init__( self, expr, default=_optionalNotMatched ):
+        super(Optional,self).__init__( expr, savelist=False )
+        self.saveAsList = self.expr.saveAsList
+        self.defaultValue = default
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        except (ParseException,IndexError):
+            if self.defaultValue is not _optionalNotMatched:
+                if self.expr.resultsName:
+                    tokens = ParseResults([ self.defaultValue ])
+                    tokens[self.expr.resultsName] = self.defaultValue
+                else:
+                    tokens = [ self.defaultValue ]
+            else:
+                tokens = []
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]"
+
+        return self.strRepr
+
+class SkipTo(ParseElementEnhance):
+    """
+    Token for skipping over all undefined text until the matched expression is found.
+
+    Parameters:
+     - expr - target expression marking the end of the data to be skipped
+     - include - (default=C{False}) if True, the target expression is also parsed 
+          (the skipped text and target expression are returned as a 2-element list).
+     - ignore - (default=C{None}) used to define grammars (typically quoted strings and 
+          comments) that might contain false matches to the target expression
+     - failOn - (default=C{None}) define expressions that are not allowed to be 
+          included in the skipped test; if found before the target expression is found, 
+          the SkipTo is not a match
+
+    Example::
+        report = '''
+            Outstanding Issues Report - 1 Jan 2000
+
+               # | Severity | Description                               |  Days Open
+            -----+----------+-------------------------------------------+-----------
+             101 | Critical | Intermittent system crash                 |          6
+              94 | Cosmetic | Spelling error on Login ('log|n')         |         14
+              79 | Minor    | System slow when running too many reports |         47
+            '''
+        integer = Word(nums)
+        SEP = Suppress('|')
+        # use SkipTo to simply match everything up until the next SEP
+        # - ignore quoted strings, so that a '|' character inside a quoted string does not match
+        # - parse action will call token.strip() for each matched token, i.e., the description body
+        string_data = SkipTo(SEP, ignore=quotedString)
+        string_data.setParseAction(tokenMap(str.strip))
+        ticket_expr = (integer("issue_num") + SEP 
+                      + string_data("sev") + SEP 
+                      + string_data("desc") + SEP 
+                      + integer("days_open"))
+        
+        for tkt in ticket_expr.searchString(report):
+            print tkt.dump()
+    prints::
+        ['101', 'Critical', 'Intermittent system crash', '6']
+        - days_open: 6
+        - desc: Intermittent system crash
+        - issue_num: 101
+        - sev: Critical
+        ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14']
+        - days_open: 14
+        - desc: Spelling error on Login ('log|n')
+        - issue_num: 94
+        - sev: Cosmetic
+        ['79', 'Minor', 'System slow when running too many reports', '47']
+        - days_open: 47
+        - desc: System slow when running too many reports
+        - issue_num: 79
+        - sev: Minor
+    """
+    def __init__( self, other, include=False, ignore=None, failOn=None ):
+        super( SkipTo, self ).__init__( other )
+        self.ignoreExpr = ignore
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.includeMatch = include
+        self.asList = False
+        if isinstance(failOn, basestring):
+            self.failOn = ParserElement._literalStringClass(failOn)
+        else:
+            self.failOn = failOn
+        self.errmsg = "No match found for "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        startloc = loc
+        instrlen = len(instring)
+        expr = self.expr
+        expr_parse = self.expr._parse
+        self_failOn_canParseNext = self.failOn.canParseNext if self.failOn is not None else None
+        self_ignoreExpr_tryParse = self.ignoreExpr.tryParse if self.ignoreExpr is not None else None
+        
+        tmploc = loc
+        while tmploc <= instrlen:
+            if self_failOn_canParseNext is not None:
+                # break if failOn expression matches
+                if self_failOn_canParseNext(instring, tmploc):
+                    break
+                    
+            if self_ignoreExpr_tryParse is not None:
+                # advance past ignore expressions
+                while 1:
+                    try:
+                        tmploc = self_ignoreExpr_tryParse(instring, tmploc)
+                    except ParseBaseException:
+                        break
+            
+            try:
+                expr_parse(instring, tmploc, doActions=False, callPreParse=False)
+            except (ParseException, IndexError):
+                # no match, advance loc in string
+                tmploc += 1
+            else:
+                # matched skipto expr, done
+                break
+
+        else:
+            # ran off the end of the input string without matching skipto expr, fail
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        # build up return values
+        loc = tmploc
+        skiptext = instring[startloc:loc]
+        skipresult = ParseResults(skiptext)
+        
+        if self.includeMatch:
+            loc, mat = expr_parse(instring,loc,doActions,callPreParse=False)
+            skipresult += mat
+
+        return loc, skipresult
+
+class Forward(ParseElementEnhance):
+    """
+    Forward declaration of an expression to be defined later -
+    used for recursive grammars, such as algebraic infix notation.
+    When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
+
+    Note: take care when assigning to C{Forward} not to overlook precedence of operators.
+    Specifically, '|' has a lower precedence than '<<', so that::
+        fwdExpr << a | b | c
+    will actually be evaluated as::
+        (fwdExpr << a) | b | c
+    thereby leaving b and c out as parseable alternatives.  It is recommended that you
+    explicitly group the values inserted into the C{Forward}::
+        fwdExpr << (a | b | c)
+    Converting to use the '<<=' operator instead will avoid this problem.
+
+    See L{ParseResults.pprint} for an example of a recursive parser created using
+    C{Forward}.
+    """
+    def __init__( self, other=None ):
+        super(Forward,self).__init__( other, savelist=False )
+
+    def __lshift__( self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass(other)
+        self.expr = other
+        self.strRepr = None
+        self.mayIndexError = self.expr.mayIndexError
+        self.mayReturnEmpty = self.expr.mayReturnEmpty
+        self.setWhitespaceChars( self.expr.whiteChars )
+        self.skipWhitespace = self.expr.skipWhitespace
+        self.saveAsList = self.expr.saveAsList
+        self.ignoreExprs.extend(self.expr.ignoreExprs)
+        return self
+        
+    def __ilshift__(self, other):
+        return self << other
+    
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        return self
+
+    def streamline( self ):
+        if not self.streamlined:
+            self.streamlined = True
+            if self.expr is not None:
+                self.expr.streamline()
+        return self
+
+    def validate( self, validateTrace=[] ):
+        if self not in validateTrace:
+            tmp = validateTrace[:]+[self]
+            if self.expr is not None:
+                self.expr.validate(tmp)
+        self.checkRecursion([])
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+        return self.__class__.__name__ + ": ..."
+
+        # stubbed out for now - creates awful memory and perf issues
+        self._revertClass = self.__class__
+        self.__class__ = _ForwardNoRecurse
+        try:
+            if self.expr is not None:
+                retString = _ustr(self.expr)
+            else:
+                retString = "None"
+        finally:
+            self.__class__ = self._revertClass
+        return self.__class__.__name__ + ": " + retString
+
+    def copy(self):
+        if self.expr is not None:
+            return super(Forward,self).copy()
+        else:
+            ret = Forward()
+            ret <<= self
+            return ret
+
+class _ForwardNoRecurse(Forward):
+    def __str__( self ):
+        return "..."
+
+class TokenConverter(ParseElementEnhance):
+    """
+    Abstract subclass of C{ParseExpression}, for converting parsed results.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(TokenConverter,self).__init__( expr )#, savelist )
+        self.saveAsList = False
+
+class Combine(TokenConverter):
+    """
+    Converter to concatenate all matching tokens to a single string.
+    By default, the matching patterns must also be contiguous in the input string;
+    this can be disabled by specifying C{'adjacent=False'} in the constructor.
+
+    Example::
+        real = Word(nums) + '.' + Word(nums)
+        print(real.parseString('3.1416')) # -> ['3', '.', '1416']
+        # will also erroneously match the following
+        print(real.parseString('3. 1416')) # -> ['3', '.', '1416']
+
+        real = Combine(Word(nums) + '.' + Word(nums))
+        print(real.parseString('3.1416')) # -> ['3.1416']
+        # no match when there are internal spaces
+        print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...)
+    """
+    def __init__( self, expr, joinString="", adjacent=True ):
+        super(Combine,self).__init__( expr )
+        # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
+        if adjacent:
+            self.leaveWhitespace()
+        self.adjacent = adjacent
+        self.skipWhitespace = True
+        self.joinString = joinString
+        self.callPreparse = True
+
+    def ignore( self, other ):
+        if self.adjacent:
+            ParserElement.ignore(self, other)
+        else:
+            super( Combine, self).ignore( other )
+        return self
+
+    def postParse( self, instring, loc, tokenlist ):
+        retToks = tokenlist.copy()
+        del retToks[:]
+        retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
+
+        if self.resultsName and retToks.haskeys():
+            return [ retToks ]
+        else:
+            return retToks
+
+class Group(TokenConverter):
+    """
+    Converter to return the matched tokens as a list - useful for returning tokens of C{L{ZeroOrMore}} and C{L{OneOrMore}} expressions.
+
+    Example::
+        ident = Word(alphas)
+        num = Word(nums)
+        term = ident | num
+        func = ident + Optional(delimitedList(term))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', 'a', 'b', '100']
+
+        func = ident + Group(Optional(delimitedList(term)))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', ['a', 'b', '100']]
+    """
+    def __init__( self, expr ):
+        super(Group,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        return [ tokenlist ]
+
+class Dict(TokenConverter):
+    """
+    Converter to return a repetitive expression as a list, but also as a dictionary.
+    Each element can also be referenced using the first token in the expression as its key.
+    Useful for tabular report scraping when the first column can be used as a item key.
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        # print attributes as plain groups
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names
+        result = Dict(OneOrMore(Group(attr_expr))).parseString(text)
+        print(result.dump())
+        
+        # access named fields as dict entries, or output as dict
+        print(result['shape'])        
+        print(result.asDict())
+    prints::
+        ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap']
+
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'}
+    See more examples at L{ParseResults} of accessing fields by results name.
+    """
+    def __init__( self, expr ):
+        super(Dict,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        for i,tok in enumerate(tokenlist):
+            if len(tok) == 0:
+                continue
+            ikey = tok[0]
+            if isinstance(ikey,int):
+                ikey = _ustr(tok[0]).strip()
+            if len(tok)==1:
+                tokenlist[ikey] = _ParseResultsWithOffset("",i)
+            elif len(tok)==2 and not isinstance(tok[1],ParseResults):
+                tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
+            else:
+                dictvalue = tok.copy() #ParseResults(i)
+                del dictvalue[0]
+                if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.haskeys()):
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
+                else:
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
+
+        if self.resultsName:
+            return [ tokenlist ]
+        else:
+            return tokenlist
+
+
+class Suppress(TokenConverter):
+    """
+    Converter for ignoring the results of a parsed expression.
+
+    Example::
+        source = "a, b, c,d"
+        wd = Word(alphas)
+        wd_list1 = wd + ZeroOrMore(',' + wd)
+        print(wd_list1.parseString(source))
+
+        # often, delimiters that are useful during parsing are just in the
+        # way afterward - use Suppress to keep them out of the parsed output
+        wd_list2 = wd + ZeroOrMore(Suppress(',') + wd)
+        print(wd_list2.parseString(source))
+    prints::
+        ['a', ',', 'b', ',', 'c', ',', 'd']
+        ['a', 'b', 'c', 'd']
+    (See also L{delimitedList}.)
+    """
+    def postParse( self, instring, loc, tokenlist ):
+        return []
+
+    def suppress( self ):
+        return self
+
+
+class OnlyOnce(object):
+    """
+    Wrapper for parse actions, to ensure they are only called once.
+    """
+    def __init__(self, methodCall):
+        self.callable = _trim_arity(methodCall)
+        self.called = False
+    def __call__(self,s,l,t):
+        if not self.called:
+            results = self.callable(s,l,t)
+            self.called = True
+            return results
+        raise ParseException(s,l,"")
+    def reset(self):
+        self.called = False
+
+def traceParseAction(f):
+    """
+    Decorator for debugging parse actions. 
+    
+    When the parse action is called, this decorator will print C{">> entering I{method-name}(line:I{current_source_line}, I{parse_location}, I{matched_tokens})".}
+    When the parse action completes, the decorator will print C{"<<"} followed by the returned value, or any exception that the parse action raised.
+
+    Example::
+        wd = Word(alphas)
+
+        @traceParseAction
+        def remove_duplicate_chars(tokens):
+            return ''.join(sorted(set(''.join(tokens)))
+
+        wds = OneOrMore(wd).setParseAction(remove_duplicate_chars)
+        print(wds.parseString("slkdjs sld sldd sdlf sdljf"))
+    prints::
+        >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {}))
+        <<leaving remove_duplicate_chars (ret: 'dfjkls')
+        ['dfjkls']
+    """
+    f = _trim_arity(f)
+    def z(*paArgs):
+        thisFunc = f.__name__
+        s,l,t = paArgs[-3:]
+        if len(paArgs)>3:
+            thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
+        sys.stderr.write( ">>entering %s(line: '%s', %d, %r)\n" % (thisFunc,line(l,s),l,t) )
+        try:
+            ret = f(*paArgs)
+        except Exception as exc:
+            sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
+            raise
+        sys.stderr.write( "<<leaving %s (ret: %r)\n" % (thisFunc,ret) )
+        return ret
+    try:
+        z.__name__ = f.__name__
+    except AttributeError:
+        pass
+    return z
+
+#
+# global helpers
+#
+def delimitedList( expr, delim=",", combine=False ):
+    """
+    Helper to define a delimited list of expressions - the delimiter defaults to ','.
+    By default, the list elements and delimiters can have intervening whitespace, and
+    comments, but this can be overridden by passing C{combine=True} in the constructor.
+    If C{combine} is set to C{True}, the matching tokens are returned as a single token
+    string, with the delimiters included; otherwise, the matching tokens are returned
+    as a list of tokens, with the delimiters suppressed.
+
+    Example::
+        delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc']
+        delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE']
+    """
+    dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
+    if combine:
+        return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
+    else:
+        return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
+
+def countedArray( expr, intExpr=None ):
+    """
+    Helper to define a counted list of expressions.
+    This helper defines a pattern of the form::
+        integer expr expr expr...
+    where the leading integer tells how many expr expressions follow.
+    The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
+    
+    If C{intExpr} is specified, it should be a pyparsing expression that produces an integer value.
+
+    Example::
+        countedArray(Word(alphas)).parseString('2 ab cd ef')  # -> ['ab', 'cd']
+
+        # in this parser, the leading integer value is given in binary,
+        # '10' indicating that 2 values are in the array
+        binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2))
+        countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef')  # -> ['ab', 'cd']
+    """
+    arrayExpr = Forward()
+    def countFieldParseAction(s,l,t):
+        n = t[0]
+        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
+        return []
+    if intExpr is None:
+        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
+    else:
+        intExpr = intExpr.copy()
+    intExpr.setName("arrayLen")
+    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
+    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...')
+
+def _flatten(L):
+    ret = []
+    for i in L:
+        if isinstance(i,list):
+            ret.extend(_flatten(i))
+        else:
+            ret.append(i)
+    return ret
+
+def matchPreviousLiteral(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousLiteral(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
+    previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
+    If this is not desired, use C{matchPreviousExpr}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    def copyTokenToRepeater(s,l,t):
+        if t:
+            if len(t) == 1:
+                rep << t[0]
+            else:
+                # flatten t tokens
+                tflat = _flatten(t.asList())
+                rep << And(Literal(tt) for tt in tflat)
+        else:
+            rep << Empty()
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def matchPreviousExpr(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousExpr(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
+    expressions, will I{not} match the leading C{"1:1"} in C{"1:10"};
+    the expressions are evaluated first, and then compared, so
+    C{"1"} is compared with C{"10"}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    e2 = expr.copy()
+    rep <<= e2
+    def copyTokenToRepeater(s,l,t):
+        matchTokens = _flatten(t.asList())
+        def mustMatchTheseTokens(s,l,t):
+            theseTokens = _flatten(t.asList())
+            if  theseTokens != matchTokens:
+                raise ParseException("",0,"")
+        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def _escapeRegexRangeChars(s):
+    #~  escape these chars: ^-]
+    for c in r"\^-]":
+        s = s.replace(c,_bslash+c)
+    s = s.replace("\n",r"\n")
+    s = s.replace("\t",r"\t")
+    return _ustr(s)
+
+def oneOf( strs, caseless=False, useRegex=True ):
+    """
+    Helper to quickly define a set of alternative Literals, and makes sure to do
+    longest-first testing when there is a conflict, regardless of the input order,
+    but returns a C{L{MatchFirst}} for best performance.
+
+    Parameters:
+     - strs - a string of space-delimited literals, or a collection of string literals
+     - caseless - (default=C{False}) - treat all literals as caseless
+     - useRegex - (default=C{True}) - as an optimization, will generate a Regex
+          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
+          if creating a C{Regex} raises an exception)
+
+    Example::
+        comp_oper = oneOf("< = > <= >= !=")
+        var = Word(alphas)
+        number = Word(nums)
+        term = var | number
+        comparison_expr = term + comp_oper + term
+        print(comparison_expr.searchString("B = 12  AA=23 B<=AA AA>12"))
+    prints::
+        [['B', '=', '12'], ['AA', '=', '23'], ['B', '<=', 'AA'], ['AA', '>', '12']]
+    """
+    if caseless:
+        isequal = ( lambda a,b: a.upper() == b.upper() )
+        masks = ( lambda a,b: b.upper().startswith(a.upper()) )
+        parseElementClass = CaselessLiteral
+    else:
+        isequal = ( lambda a,b: a == b )
+        masks = ( lambda a,b: b.startswith(a) )
+        parseElementClass = Literal
+
+    symbols = []
+    if isinstance(strs,basestring):
+        symbols = strs.split()
+    elif isinstance(strs, collections.Iterable):
+        symbols = list(strs)
+    else:
+        warnings.warn("Invalid argument to oneOf, expected string or iterable",
+                SyntaxWarning, stacklevel=2)
+    if not symbols:
+        return NoMatch()
+
+    i = 0
+    while i < len(symbols)-1:
+        cur = symbols[i]
+        for j,other in enumerate(symbols[i+1:]):
+            if ( isequal(other, cur) ):
+                del symbols[i+j+1]
+                break
+            elif ( masks(cur, other) ):
+                del symbols[i+j+1]
+                symbols.insert(i,other)
+                cur = other
+                break
+        else:
+            i += 1
+
+    if not caseless and useRegex:
+        #~ print (strs,"->", "|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
+        try:
+            if len(symbols)==len("".join(symbols)):
+                return Regex( "[%s]" % "".join(_escapeRegexRangeChars(sym) for sym in symbols) ).setName(' | '.join(symbols))
+            else:
+                return Regex( "|".join(re.escape(sym) for sym in symbols) ).setName(' | '.join(symbols))
+        except Exception:
+            warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
+                    SyntaxWarning, stacklevel=2)
+
+
+    # last resort, just use MatchFirst
+    return MatchFirst(parseElementClass(sym) for sym in symbols).setName(' | '.join(symbols))
+
+def dictOf( key, value ):
+    """
+    Helper to easily and clearly define a dictionary by specifying the respective patterns
+    for the key and value.  Takes care of defining the C{L{Dict}}, C{L{ZeroOrMore}}, and C{L{Group}} tokens
+    in the proper order.  The key pattern can include delimiting markers or punctuation,
+    as long as they are suppressed, thereby leaving the significant key text.  The value
+    pattern can include named results, so that the C{Dict} results can include named token
+    fields.
+
+    Example::
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        attr_label = label
+        attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)
+
+        # similar to Dict, but simpler call format
+        result = dictOf(attr_label, attr_value).parseString(text)
+        print(result.dump())
+        print(result['shape'])
+        print(result.shape)  # object attribute access works too
+        print(result.asDict())
+    prints::
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        SQUARE
+        {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'}
+    """
+    return Dict( ZeroOrMore( Group ( key + value ) ) )
+
+def originalTextFor(expr, asString=True):
+    """
+    Helper to return the original, untokenized text for a given expression.  Useful to
+    restore the parsed fields of an HTML start tag into the raw tag text itself, or to
+    revert separate tokens with intervening whitespace back to the original matching
+    input text. By default, returns astring containing the original parsed text.  
+       
+    If the optional C{asString} argument is passed as C{False}, then the return value is a 
+    C{L{ParseResults}} containing any results names that were originally matched, and a 
+    single token containing the original matched text from the input string.  So if 
+    the expression passed to C{L{originalTextFor}} contains expressions with defined
+    results names, you must set C{asString} to C{False} if you want to preserve those
+    results name values.
+
+    Example::
+        src = "this is test <b> bold <i>text</i> </b> normal text "
+        for tag in ("b","i"):
+            opener,closer = makeHTMLTags(tag)
+            patt = originalTextFor(opener + SkipTo(closer) + closer)
+            print(patt.searchString(src)[0])
+    prints::
+        ['<b> bold <i>text</i> </b>']
+        ['<i>text</i>']
+    """
+    locMarker = Empty().setParseAction(lambda s,loc,t: loc)
+    endlocMarker = locMarker.copy()
+    endlocMarker.callPreparse = False
+    matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
+    if asString:
+        extractText = lambda s,l,t: s[t._original_start:t._original_end]
+    else:
+        def extractText(s,l,t):
+            t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]]
+    matchExpr.setParseAction(extractText)
+    matchExpr.ignoreExprs = expr.ignoreExprs
+    return matchExpr
+
+def ungroup(expr): 
+    """
+    Helper to undo pyparsing's default grouping of And expressions, even
+    if all but one are non-empty.
+    """
+    return TokenConverter(expr).setParseAction(lambda t:t[0])
+
+def locatedExpr(expr):
+    """
+    Helper to decorate a returned token with its starting and ending locations in the input string.
+    This helper adds the following results names:
+     - locn_start = location where matched expression begins
+     - locn_end = location where matched expression ends
+     - value = the actual parsed results
+
+    Be careful if the input text contains C{<TAB>} characters, you may want to call
+    C{L{ParserElement.parseWithTabs}}
+
+    Example::
+        wd = Word(alphas)
+        for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"):
+            print(match)
+    prints::
+        [[0, 'ljsdf', 5]]
+        [[8, 'lksdjjf', 15]]
+        [[18, 'lkkjj', 23]]
+    """
+    locator = Empty().setParseAction(lambda s,l,t: l)
+    return Group(locator("locn_start") + expr("value") + locator.copy().leaveWhitespace()("locn_end"))
+
+
+# convenience constants for positional expressions
+empty       = Empty().setName("empty")
+lineStart   = LineStart().setName("lineStart")
+lineEnd     = LineEnd().setName("lineEnd")
+stringStart = StringStart().setName("stringStart")
+stringEnd   = StringEnd().setName("stringEnd")
+
+_escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
+_escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0].lstrip(r'\0x'),16)))
+_escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
+_singleChar = _escapedPunc | _escapedHexChar | _escapedOctChar | Word(printables, excludeChars=r'\]', exact=1) | Regex(r"\w", re.UNICODE)
+_charRange = Group(_singleChar + Suppress("-") + _singleChar)
+_reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange | _singleChar ) ).setResultsName("body") + "]"
+
+def srange(s):
+    r"""
+    Helper to easily define string ranges for use in Word construction.  Borrows
+    syntax from regexp '[]' string range definitions::
+        srange("[0-9]")   -> "0123456789"
+        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
+        srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
+    The input string must be enclosed in []'s, and the returned string is the expanded
+    character set joined into a single string.
+    The values enclosed in the []'s may be:
+     - a single character
+     - an escaped character with a leading backslash (such as C{\-} or C{\]})
+     - an escaped hex character with a leading C{'\x'} (C{\x21}, which is a C{'!'} character) 
+         (C{\0x##} is also supported for backwards compatibility) 
+     - an escaped octal character with a leading C{'\0'} (C{\041}, which is a C{'!'} character)
+     - a range of any of the above, separated by a dash (C{'a-z'}, etc.)
+     - any combination of the above (C{'aeiouy'}, C{'a-zA-Z0-9_$'}, etc.)
+    """
+    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
+    try:
+        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
+    except Exception:
+        return ""
+
+def matchOnlyAtCol(n):
+    """
+    Helper method for defining parse actions that require matching at a specific
+    column in the input text.
+    """
+    def verifyCol(strg,locn,toks):
+        if col(locn,strg) != n:
+            raise ParseException(strg,locn,"matched token not at column %d" % n)
+    return verifyCol
+
+def replaceWith(replStr):
+    """
+    Helper method for common parse actions that simply return a literal value.  Especially
+    useful when used with C{L{transformString<ParserElement.transformString>}()}.
+
+    Example::
+        num = Word(nums).setParseAction(lambda toks: int(toks[0]))
+        na = oneOf("N/A NA").setParseAction(replaceWith(math.nan))
+        term = na | num
+        
+        OneOrMore(term).parseString("324 234 N/A 234") # -> [324, 234, nan, 234]
+    """
+    return lambda s,l,t: [replStr]
+
+def removeQuotes(s,l,t):
+    """
+    Helper parse action for removing quotation marks from parsed quoted strings.
+
+    Example::
+        # by default, quotation marks are included in parsed results
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"]
+
+        # use removeQuotes to strip quotation marks from parsed results
+        quotedString.setParseAction(removeQuotes)
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"]
+    """
+    return t[0][1:-1]
+
+def tokenMap(func, *args):
+    """
+    Helper to define a parse action by mapping a function to all elements of a ParseResults list.If any additional 
+    args are passed, they are forwarded to the given function as additional arguments after
+    the token, as in C{hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))}, which will convert the
+    parsed data to an integer using base 16.
+
+    Example (compare the last to example in L{ParserElement.transformString}::
+        hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16))
+        hex_ints.runTests('''
+            00 11 22 aa FF 0a 0d 1a
+            ''')
+        
+        upperword = Word(alphas).setParseAction(tokenMap(str.upper))
+        OneOrMore(upperword).runTests('''
+            my kingdom for a horse
+            ''')
+
+        wd = Word(alphas).setParseAction(tokenMap(str.title))
+        OneOrMore(wd).setParseAction(' '.join).runTests('''
+            now is the winter of our discontent made glorious summer by this sun of york
+            ''')
+    prints::
+        00 11 22 aa FF 0a 0d 1a
+        [0, 17, 34, 170, 255, 10, 13, 26]
+
+        my kingdom for a horse
+        ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE']
+
+        now is the winter of our discontent made glorious summer by this sun of york
+        ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York']
+    """
+    def pa(s,l,t):
+        return [func(tokn, *args) for tokn in t]
+
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    pa.__name__ = func_name
+
+    return pa
+
+upcaseTokens = tokenMap(lambda t: _ustr(t).upper())
+"""(Deprecated) Helper parse action to convert tokens to upper case. Deprecated in favor of L{pyparsing_common.upcaseTokens}"""
+
+downcaseTokens = tokenMap(lambda t: _ustr(t).lower())
+"""(Deprecated) Helper parse action to convert tokens to lower case. Deprecated in favor of L{pyparsing_common.downcaseTokens}"""
+    
+def _makeTags(tagStr, xml):
+    """Internal helper to construct opening and closing tag expressions, given a tag name"""
+    if isinstance(tagStr,basestring):
+        resname = tagStr
+        tagStr = Keyword(tagStr, caseless=not xml)
+    else:
+        resname = tagStr.name
+
+    tagAttrName = Word(alphas,alphanums+"_-:")
+    if (xml):
+        tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    else:
+        printablesLessRAbrack = "".join(c for c in printables if c not in ">")
+        tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) | Word(printablesLessRAbrack)
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
+                Optional( Suppress("=") + tagAttrValue ) ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    closeTag = Combine(_L("</") + tagStr + ">")
+
+    openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % resname)
+    closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % resname)
+    openTag.tag = resname
+    closeTag.tag = resname
+    return openTag, closeTag
+
+def makeHTMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for HTML, given a tag name. Matches
+    tags in either upper or lower case, attributes with namespaces and with quoted or unquoted values.
+
+    Example::
+        text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+        # makeHTMLTags returns pyparsing expressions for the opening and closing tags as a 2-tuple
+        a,a_end = makeHTMLTags("A")
+        link_expr = a + SkipTo(a_end)("link_text") + a_end
+        
+        for link in link_expr.searchString(text):
+            # attributes in the <A> tag (like "href" shown here) are also accessible as named results
+            print(link.link_text, '->', link.href)
+    prints::
+        pyparsing -> http://pyparsing.wikispaces.com
+    """
+    return _makeTags( tagStr, False )
+
+def makeXMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for XML, given a tag name. Matches
+    tags only in the given upper/lower case.
+
+    Example: similar to L{makeHTMLTags}
+    """
+    return _makeTags( tagStr, True )
+
+def withAttribute(*args,**attrDict):
+    """
+    Helper to create a validating parse action to be used with start tags created
+    with C{L{makeXMLTags}} or C{L{makeHTMLTags}}. Use C{withAttribute} to qualify a starting tag
+    with a required attribute value, to avoid false matches on common tags such as
+    C{<TD>} or C{<DIV>}.
+
+    Call C{withAttribute} with a series of attribute names and values. Specify the list
+    of filter attributes names and values as:
+     - keyword arguments, as in C{(align="right")}, or
+     - as an explicit dict with C{**} operator, when an attribute name is also a Python
+          reserved word, as in C{**{"class":"Customer", "align":"right"}}
+     - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
+    For attribute names with a namespace prefix, you must use the second form.  Attribute
+    names are matched insensitive to upper/lower case.
+       
+    If just testing for C{class} (with or without a namespace), use C{L{withClass}}.
+
+    To verify that the attribute exists, but without specifying a value, pass
+    C{withAttribute.ANY_VALUE} as the value.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div type="grid">1 4 0 1 0</div>
+            <div type="graph">1,3 2,3 1,1</div>
+            <div>this has no type</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+
+        # only match div tag having a type attribute with value "grid"
+        div_grid = div().setParseAction(withAttribute(type="grid"))
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        # construct a match with any div tag having a type attribute, regardless of the value
+        div_any_type = div().setParseAction(withAttribute(type=withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    if args:
+        attrs = args[:]
+    else:
+        attrs = attrDict.items()
+    attrs = [(k,v) for k,v in attrs]
+    def pa(s,l,tokens):
+        for attrName,attrValue in attrs:
+            if attrName not in tokens:
+                raise ParseException(s,l,"no matching attribute " + attrName)
+            if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
+                raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
+                                            (attrName, tokens[attrName], attrValue))
+    return pa
+withAttribute.ANY_VALUE = object()
+
+def withClass(classname, namespace=''):
+    """
+    Simplified version of C{L{withAttribute}} when matching on a div class - made
+    difficult because C{class} is a reserved word in Python.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div class="grid">1 4 0 1 0</div>
+            <div class="graph">1,3 2,3 1,1</div>
+            <div>this <div> has no class</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+        div_grid = div().setParseAction(withClass("grid"))
+        
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        div_any_type = div().setParseAction(withClass(withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    classattr = "%s:class" % namespace if namespace else "class"
+    return withAttribute(**{classattr : classname})        
+
+opAssoc = _Constants()
+opAssoc.LEFT = object()
+opAssoc.RIGHT = object()
+
+def infixNotation( baseExpr, opList, lpar=Suppress('('), rpar=Suppress(')') ):
+    """
+    Helper method for constructing grammars of expressions made up of
+    operators working in a precedence hierarchy.  Operators may be unary or
+    binary, left- or right-associative.  Parse actions can also be attached
+    to operator expressions. The generated parser will also recognize the use 
+    of parentheses to override operator precedences (see example below).
+    
+    Note: if you define a deep operator list, you may see performance issues
+    when using infixNotation. See L{ParserElement.enablePackrat} for a
+    mechanism to potentially improve your parser performance.
+
+    Parameters:
+     - baseExpr - expression representing the most basic element for the nested
+     - opList - list of tuples, one for each operator precedence level in the
+      expression grammar; each tuple is of the form
+      (opExpr, numTerms, rightLeftAssoc, parseAction), where:
+       - opExpr is the pyparsing expression for the operator;
+          may also be a string, which will be converted to a Literal;
+          if numTerms is 3, opExpr is a tuple of two expressions, for the
+          two operators separating the 3 terms
+       - numTerms is the number of terms for this operator (must
+          be 1, 2, or 3)
+       - rightLeftAssoc is the indicator whether the operator is
+          right or left associative, using the pyparsing-defined
+          constants C{opAssoc.RIGHT} and C{opAssoc.LEFT}.
+       - parseAction is the parse action to be associated with
+          expressions matching this operator expression (the
+          parse action tuple member may be omitted)
+     - lpar - expression for matching left-parentheses (default=C{Suppress('(')})
+     - rpar - expression for matching right-parentheses (default=C{Suppress(')')})
+
+    Example::
+        # simple example of four-function arithmetic with ints and variable names
+        integer = pyparsing_common.signed_integer
+        varname = pyparsing_common.identifier 
+        
+        arith_expr = infixNotation(integer | varname,
+            [
+            ('-', 1, opAssoc.RIGHT),
+            (oneOf('* /'), 2, opAssoc.LEFT),
+            (oneOf('+ -'), 2, opAssoc.LEFT),
+            ])
+        
+        arith_expr.runTests('''
+            5+3*6
+            (5+3)*6
+            -2--11
+            ''', fullDump=False)
+    prints::
+        5+3*6
+        [[5, '+', [3, '*', 6]]]
+
+        (5+3)*6
+        [[[5, '+', 3], '*', 6]]
+
+        -2--11
+        [[['-', 2], '-', ['-', 11]]]
+    """
+    ret = Forward()
+    lastExpr = baseExpr | ( lpar + ret + rpar )
+    for i,operDef in enumerate(opList):
+        opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
+        termName = "%s term" % opExpr if arity < 3 else "%s%s term" % opExpr
+        if arity == 3:
+            if opExpr is None or len(opExpr) != 2:
+                raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
+            opExpr1, opExpr2 = opExpr
+        thisExpr = Forward().setName(termName)
+        if rightLeftAssoc == opAssoc.LEFT:
+            if arity == 1:
+                matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
+                            Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        elif rightLeftAssoc == opAssoc.RIGHT:
+            if arity == 1:
+                # try to avoid LR with this extra test
+                if not isinstance(opExpr, Optional):
+                    opExpr = Optional(opExpr)
+                matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
+                            Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        else:
+            raise ValueError("operator must indicate right or left associativity")
+        if pa:
+            matchExpr.setParseAction( pa )
+        thisExpr <<= ( matchExpr.setName(termName) | lastExpr )
+        lastExpr = thisExpr
+    ret <<= lastExpr
+    return ret
+
+operatorPrecedence = infixNotation
+"""(Deprecated) Former name of C{L{infixNotation}}, will be dropped in a future release."""
+
+dblQuotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"').setName("string enclosed in double quotes")
+sglQuotedString = Combine(Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("string enclosed in single quotes")
+quotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"'|
+                       Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("quotedString using single or double quotes")
+unicodeString = Combine(_L('u') + quotedString.copy()).setName("unicode string literal")
+
+def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
+    """
+    Helper method for defining nested lists enclosed in opening and closing
+    delimiters ("(" and ")" are the default).
+
+    Parameters:
+     - opener - opening character for a nested list (default=C{"("}); can also be a pyparsing expression
+     - closer - closing character for a nested list (default=C{")"}); can also be a pyparsing expression
+     - content - expression for items within the nested lists (default=C{None})
+     - ignoreExpr - expression for ignoring opening and closing delimiters (default=C{quotedString})
+
+    If an expression is not provided for the content argument, the nested
+    expression will capture all whitespace-delimited content between delimiters
+    as a list of separate values.
+
+    Use the C{ignoreExpr} argument to define expressions that may contain
+    opening or closing characters that should not be treated as opening
+    or closing characters for nesting, such as quotedString or a comment
+    expression.  Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
+    The default is L{quotedString}, but if no expressions are to be ignored,
+    then pass C{None} for this argument.
+
+    Example::
+        data_type = oneOf("void int short long char float double")
+        decl_data_type = Combine(data_type + Optional(Word('*')))
+        ident = Word(alphas+'_', alphanums+'_')
+        number = pyparsing_common.number
+        arg = Group(decl_data_type + ident)
+        LPAR,RPAR = map(Suppress, "()")
+
+        code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment))
+
+        c_function = (decl_data_type("type") 
+                      + ident("name")
+                      + LPAR + Optional(delimitedList(arg), [])("args") + RPAR 
+                      + code_body("body"))
+        c_function.ignore(cStyleComment)
+        
+        source_code = '''
+            int is_odd(int x) { 
+                return (x%2); 
+            }
+                
+            int dec_to_hex(char hchar) { 
+                if (hchar >= '0' && hchar <= '9') { 
+                    return (ord(hchar)-ord('0')); 
+                } else { 
+                    return (10+ord(hchar)-ord('A'));
+                } 
+            }
+        '''
+        for func in c_function.searchString(source_code):
+            print("%(name)s (%(type)s) args: %(args)s" % func)
+
+    prints::
+        is_odd (int) args: [['int', 'x']]
+        dec_to_hex (int) args: [['char', 'hchar']]
+    """
+    if opener == closer:
+        raise ValueError("opening and closing strings cannot be the same")
+    if content is None:
+        if isinstance(opener,basestring) and isinstance(closer,basestring):
+            if len(opener) == 1 and len(closer)==1:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr +
+                                    CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
+                                ).setParseAction(lambda t:t[0].strip()))
+            else:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr + 
+                                    ~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+        else:
+            raise ValueError("opening and closing arguments must be strings if no content expression is given")
+    ret = Forward()
+    if ignoreExpr is not None:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ignoreExpr | ret | content ) + Suppress(closer) )
+    else:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ret | content )  + Suppress(closer) )
+    ret.setName('nested %s%s expression' % (opener,closer))
+    return ret
+
+def indentedBlock(blockStatementExpr, indentStack, indent=True):
+    """
+    Helper method for defining space-delimited indentation blocks, such as
+    those used to define block statements in Python source code.
+
+    Parameters:
+     - blockStatementExpr - expression defining syntax of statement that
+            is repeated within the indented block
+     - indentStack - list created by caller to manage indentation stack
+            (multiple statementWithIndentedBlock expressions within a single grammar
+            should share a common indentStack)
+     - indent - boolean indicating whether block must be indented beyond the
+            the current level; set to False for block of left-most statements
+            (default=C{True})
+
+    A valid block must contain at least one C{blockStatement}.
+
+    Example::
+        data = '''
+        def A(z):
+          A1
+          B = 100
+          G = A2
+          A2
+          A3
+        B
+        def BB(a,b,c):
+          BB1
+          def BBA():
+            bba1
+            bba2
+            bba3
+        C
+        D
+        def spam(x,y):
+             def eggs(z):
+                 pass
+        '''
+
+
+        indentStack = [1]
+        stmt = Forward()
+
+        identifier = Word(alphas, alphanums)
+        funcDecl = ("def" + identifier + Group( "(" + Optional( delimitedList(identifier) ) + ")" ) + ":")
+        func_body = indentedBlock(stmt, indentStack)
+        funcDef = Group( funcDecl + func_body )
+
+        rvalue = Forward()
+        funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
+        rvalue << (funcCall | identifier | Word(nums))
+        assignment = Group(identifier + "=" + rvalue)
+        stmt << ( funcDef | assignment | identifier )
+
+        module_body = OneOrMore(stmt)
+
+        parseTree = module_body.parseString(data)
+        parseTree.pprint()
+    prints::
+        [['def',
+          'A',
+          ['(', 'z', ')'],
+          ':',
+          [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]],
+         'B',
+         ['def',
+          'BB',
+          ['(', 'a', 'b', 'c', ')'],
+          ':',
+          [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]],
+         'C',
+         'D',
+         ['def',
+          'spam',
+          ['(', 'x', 'y', ')'],
+          ':',
+          [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]] 
+    """
+    def checkPeerIndent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if curCol != indentStack[-1]:
+            if curCol > indentStack[-1]:
+                raise ParseFatalException(s,l,"illegal nesting")
+            raise ParseException(s,l,"not a peer entry")
+
+    def checkSubIndent(s,l,t):
+        curCol = col(l,s)
+        if curCol > indentStack[-1]:
+            indentStack.append( curCol )
+        else:
+            raise ParseException(s,l,"not a subentry")
+
+    def checkUnindent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
+            raise ParseException(s,l,"not an unindent")
+        indentStack.pop()
+
+    NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
+    INDENT = (Empty() + Empty().setParseAction(checkSubIndent)).setName('INDENT')
+    PEER   = Empty().setParseAction(checkPeerIndent).setName('')
+    UNDENT = Empty().setParseAction(checkUnindent).setName('UNINDENT')
+    if indent:
+        smExpr = Group( Optional(NL) +
+            #~ FollowedBy(blockStatementExpr) +
+            INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
+    else:
+        smExpr = Group( Optional(NL) +
+            (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
+    blockStatementExpr.ignore(_bslash + LineEnd())
+    return smExpr.setName('indented block')
+
+alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
+punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
+
+anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:").setName('any tag'))
+_htmlEntityMap = dict(zip("gt lt amp nbsp quot apos".split(),'><& "\''))
+commonHTMLEntity = Regex('&(?P<entity>' + '|'.join(_htmlEntityMap.keys()) +");").setName("common HTML entity")
+def replaceHTMLEntity(t):
+    """Helper parser action to replace common HTML entities with their special characters"""
+    return _htmlEntityMap.get(t.entity)
+
+# it's easy to get these comment structures wrong - they're very common, so may as well make them available
+cStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/').setName("C style comment")
+"Comment of the form C{/* ... */}"
+
+htmlComment = Regex(r"").setName("HTML comment")
+"Comment of the form C{}"
+
+restOfLine = Regex(r".*").leaveWhitespace().setName("rest of line")
+dblSlashComment = Regex(r"//(?:\\\n|[^\n])*").setName("// comment")
+"Comment of the form C{// ... (to end of line)}"
+
+cppStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/'| dblSlashComment).setName("C++ style comment")
+"Comment of either form C{L{cStyleComment}} or C{L{dblSlashComment}}"
+
+javaStyleComment = cppStyleComment
+"Same as C{L{cppStyleComment}}"
+
+pythonStyleComment = Regex(r"#.*").setName("Python style comment")
+"Comment of the form C{# ... (to end of line)}"
+
+_commasepitem = Combine(OneOrMore(Word(printables, excludeChars=',') +
+                                  Optional( Word(" \t") +
+                                            ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
+commaSeparatedList = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("commaSeparatedList")
+"""(Deprecated) Predefined expression of 1 or more printable words or quoted strings, separated by commas.
+   This expression is deprecated in favor of L{pyparsing_common.comma_separated_list}."""
+
+# some other useful expressions - using lower-case class name since we are really using this as a namespace
+class pyparsing_common:
+    """
+    Here are some common low-level expressions that may be useful in jump-starting parser development:
+     - numeric forms (L{integers<integer>}, L{reals<real>}, L{scientific notation<sci_real>})
+     - common L{programming identifiers<identifier>}
+     - network addresses (L{MAC<mac_address>}, L{IPv4<ipv4_address>}, L{IPv6<ipv6_address>})
+     - ISO8601 L{dates<iso8601_date>} and L{datetime<iso8601_datetime>}
+     - L{UUID<uuid>}
+     - L{comma-separated list<comma_separated_list>}
+    Parse actions:
+     - C{L{convertToInteger}}
+     - C{L{convertToFloat}}
+     - C{L{convertToDate}}
+     - C{L{convertToDatetime}}
+     - C{L{stripHTMLTags}}
+     - C{L{upcaseTokens}}
+     - C{L{downcaseTokens}}
+
+    Example::
+        pyparsing_common.number.runTests('''
+            # any int or real number, returned as the appropriate type
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.fnumber.runTests('''
+            # any int or real number, returned as float
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.hex_integer.runTests('''
+            # hex numbers
+            100
+            FF
+            ''')
+
+        pyparsing_common.fraction.runTests('''
+            # fractions
+            1/2
+            -3/4
+            ''')
+
+        pyparsing_common.mixed_integer.runTests('''
+            # mixed fractions
+            1
+            1/2
+            -3/4
+            1-3/4
+            ''')
+
+        import uuid
+        pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+        pyparsing_common.uuid.runTests('''
+            # uuid
+            12345678-1234-5678-1234-567812345678
+            ''')
+    prints::
+        # any int or real number, returned as the appropriate type
+        100
+        [100]
+
+        -100
+        [-100]
+
+        +100
+        [100]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # any int or real number, returned as float
+        100
+        [100.0]
+
+        -100
+        [-100.0]
+
+        +100
+        [100.0]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # hex numbers
+        100
+        [256]
+
+        FF
+        [255]
+
+        # fractions
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        # mixed fractions
+        1
+        [1]
+
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        1-3/4
+        [1.75]
+
+        # uuid
+        12345678-1234-5678-1234-567812345678
+        [UUID('12345678-1234-5678-1234-567812345678')]
+    """
+
+    convertToInteger = tokenMap(int)
+    """
+    Parse action for converting parsed integers to Python int
+    """
+
+    convertToFloat = tokenMap(float)
+    """
+    Parse action for converting parsed numbers to Python float
+    """
+
+    integer = Word(nums).setName("integer").setParseAction(convertToInteger)
+    """expression that parses an unsigned integer, returns an int"""
+
+    hex_integer = Word(hexnums).setName("hex integer").setParseAction(tokenMap(int,16))
+    """expression that parses a hexadecimal integer, returns an int"""
+
+    signed_integer = Regex(r'[+-]?\d+').setName("signed integer").setParseAction(convertToInteger)
+    """expression that parses an integer with optional leading sign, returns an int"""
+
+    fraction = (signed_integer().setParseAction(convertToFloat) + '/' + signed_integer().setParseAction(convertToFloat)).setName("fraction")
+    """fractional expression of an integer divided by an integer, returns a float"""
+    fraction.addParseAction(lambda t: t[0]/t[-1])
+
+    mixed_integer = (fraction | signed_integer + Optional(Optional('-').suppress() + fraction)).setName("fraction or mixed integer-fraction")
+    """mixed integer of the form 'integer - fraction', with optional leading integer, returns float"""
+    mixed_integer.addParseAction(sum)
+
+    real = Regex(r'[+-]?\d+\.\d*').setName("real number").setParseAction(convertToFloat)
+    """expression that parses a floating point number and returns a float"""
+
+    sci_real = Regex(r'[+-]?\d+([eE][+-]?\d+|\.\d*([eE][+-]?\d+)?)').setName("real number with scientific notation").setParseAction(convertToFloat)
+    """expression that parses a floating point number with optional scientific notation and returns a float"""
+
+    # streamlining this expression makes the docs nicer-looking
+    number = (sci_real | real | signed_integer).streamline()
+    """any numeric expression, returns the corresponding Python type"""
+
+    fnumber = Regex(r'[+-]?\d+\.?\d*([eE][+-]?\d+)?').setName("fnumber").setParseAction(convertToFloat)
+    """any int or real number, returned as float"""
+    
+    identifier = Word(alphas+'_', alphanums+'_').setName("identifier")
+    """typical code identifier (leading alpha or '_', followed by 0 or more alphas, nums, or '_')"""
+    
+    ipv4_address = Regex(r'(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})){3}').setName("IPv4 address")
+    "IPv4 address (C{0.0.0.0 - 255.255.255.255})"
+
+    _ipv6_part = Regex(r'[0-9a-fA-F]{1,4}').setName("hex_integer")
+    _full_ipv6_address = (_ipv6_part + (':' + _ipv6_part)*7).setName("full IPv6 address")
+    _short_ipv6_address = (Optional(_ipv6_part + (':' + _ipv6_part)*(0,6)) + "::" + Optional(_ipv6_part + (':' + _ipv6_part)*(0,6))).setName("short IPv6 address")
+    _short_ipv6_address.addCondition(lambda t: sum(1 for tt in t if pyparsing_common._ipv6_part.matches(tt)) < 8)
+    _mixed_ipv6_address = ("::ffff:" + ipv4_address).setName("mixed IPv6 address")
+    ipv6_address = Combine((_full_ipv6_address | _mixed_ipv6_address | _short_ipv6_address).setName("IPv6 address")).setName("IPv6 address")
+    "IPv6 address (long, short, or mixed form)"
+    
+    mac_address = Regex(r'[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}').setName("MAC address")
+    "MAC address xx:xx:xx:xx:xx (may also have '-' or '.' delimiters)"
+
+    @staticmethod
+    def convertToDate(fmt="%Y-%m-%d"):
+        """
+        Helper to create a parse action for converting parsed date string to Python datetime.date
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%d"})
+
+        Example::
+            date_expr = pyparsing_common.iso8601_date.copy()
+            date_expr.setParseAction(pyparsing_common.convertToDate())
+            print(date_expr.parseString("1999-12-31"))
+        prints::
+            [datetime.date(1999, 12, 31)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt).date()
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    @staticmethod
+    def convertToDatetime(fmt="%Y-%m-%dT%H:%M:%S.%f"):
+        """
+        Helper to create a parse action for converting parsed datetime string to Python datetime.datetime
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%dT%H:%M:%S.%f"})
+
+        Example::
+            dt_expr = pyparsing_common.iso8601_datetime.copy()
+            dt_expr.setParseAction(pyparsing_common.convertToDatetime())
+            print(dt_expr.parseString("1999-12-31T23:59:59.999"))
+        prints::
+            [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt)
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    iso8601_date = Regex(r'(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?').setName("ISO8601 date")
+    "ISO8601 date (C{yyyy-mm-dd})"
+
+    iso8601_datetime = Regex(r'(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)[T ](?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d(\.\d*)?)?)?(?P<tz>Z|[+-]\d\d:?\d\d)?').setName("ISO8601 datetime")
+    "ISO8601 datetime (C{yyyy-mm-ddThh:mm:ss.s(Z|+-00:00)}) - trailing seconds, milliseconds, and timezone optional; accepts separating C{'T'} or C{' '}"
+
+    uuid = Regex(r'[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}').setName("UUID")
+    "UUID (C{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx})"
+
+    _html_stripper = anyOpenTag.suppress() | anyCloseTag.suppress()
+    @staticmethod
+    def stripHTMLTags(s, l, tokens):
+        """
+        Parse action to remove HTML tags from web page HTML source
+
+        Example::
+            # strip HTML links from normal text 
+            text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+            td,td_end = makeHTMLTags("TD")
+            table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end
+            
+            print(table_text.parseString(text).body) # -> 'More info at the pyparsing wiki page'
+        """
+        return pyparsing_common._html_stripper.transformString(tokens[0])
+
+    _commasepitem = Combine(OneOrMore(~Literal(",") + ~LineEnd() + Word(printables, excludeChars=',') 
+                                        + Optional( White(" \t") ) ) ).streamline().setName("commaItem")
+    comma_separated_list = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("comma separated list")
+    """Predefined expression of 1 or more printable words or quoted strings, separated by commas."""
+
+    upcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).upper()))
+    """Parse action to convert tokens to upper case."""
+
+    downcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).lower()))
+    """Parse action to convert tokens to lower case."""
+
+
+if __name__ == "__main__":
+
+    selectToken    = CaselessLiteral("select")
+    fromToken      = CaselessLiteral("from")
+
+    ident          = Word(alphas, alphanums + "_$")
+
+    columnName     = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    columnNameList = Group(delimitedList(columnName)).setName("columns")
+    columnSpec     = ('*' | columnNameList)
+
+    tableName      = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    tableNameList  = Group(delimitedList(tableName)).setName("tables")
+    
+    simpleSQL      = selectToken("command") + columnSpec("columns") + fromToken + tableNameList("tables")
+
+    # demo runTests method, including embedded comments in test string
+    simpleSQL.runTests("""
+        # '*' as column list and dotted table name
+        select * from SYS.XYZZY
+
+        # caseless match on "SELECT", and casts back to "select"
+        SELECT * from XYZZY, ABC
+
+        # list of column names, and mixed case SELECT keyword
+        Select AA,BB,CC from Sys.dual
+
+        # multiple tables
+        Select A, B, C from Sys.dual, Table2
+
+        # invalid SELECT keyword - should fail
+        Xelect A, B, C from Sys.dual
+
+        # incomplete command - should fail
+        Select
+
+        # invalid column name - should fail
+        Select ^^^ frox Sys.dual
+
+        """)
+
+    pyparsing_common.number.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    # any int or real number, returned as float
+    pyparsing_common.fnumber.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    pyparsing_common.hex_integer.runTests("""
+        100
+        FF
+        """)
+
+    import uuid
+    pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+    pyparsing_common.uuid.runTests("""
+        12345678-1234-5678-1234-567812345678
+        """)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/re-vendor.py b/venv1/lib/python3.5/site-packages/pip/_vendor/re-vendor.py
new file mode 100644
index 0000000..0a52123
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/re-vendor.py
@@ -0,0 +1,34 @@
+import os
+import sys
+import pip
+import glob
+import shutil
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+def usage():
+    print("Usage: re-vendor.py [clean|vendor]")
+    sys.exit(1)
+
+def clean():
+    for fn in os.listdir(here):
+        dirname = os.path.join(here, fn)
+        if os.path.isdir(dirname):
+            shutil.rmtree(dirname)
+    # six is a single file, not a package
+    os.unlink(os.path.join(here, 'six.py'))
+
+def vendor():
+    pip.main(['install', '-t', here, '-r', 'vendor.txt'])
+    for dirname in glob.glob('*.egg-info'):
+        shutil.rmtree(dirname)
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        usage()
+    if sys.argv[1] == 'clean':
+        clean()
+    elif sys.argv[1] == 'vendor':
+        vendor()
+    else:
+        usage()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py
new file mode 100644
index 0000000..44f6836
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/__init__.py
@@ -0,0 +1,88 @@
+# -*- coding: utf-8 -*-
+
+#   __
+#  /__)  _  _     _   _ _/   _
+# / (   (- (/ (/ (- _)  /  _)
+#          /
+
+"""
+Requests HTTP library
+~~~~~~~~~~~~~~~~~~~~~
+
+Requests is an HTTP library, written in Python, for human beings. Basic GET
+usage:
+
+   >>> import requests
+   >>> r = requests.get('https://www.python.org')
+   >>> r.status_code
+   200
+   >>> 'Python is a programming language' in r.content
+   True
+
+... or POST:
+
+   >>> payload = dict(key1='value1', key2='value2')
+   >>> r = requests.post('http://httpbin.org/post', data=payload)
+   >>> print(r.text)
+   {
+     ...
+     "form": {
+       "key2": "value2",
+       "key1": "value1"
+     },
+     ...
+   }
+
+The other HTTP methods are supported - see `requests.api`. Full documentation
+is at <http://python-requests.org>.
+
+:copyright: (c) 2016 by Kenneth Reitz.
+:license: Apache 2.0, see LICENSE for more details.
+"""
+
+__title__ = 'requests'
+__version__ = '2.11.1'
+__build__ = 0x021101
+__author__ = 'Kenneth Reitz'
+__license__ = 'Apache 2.0'
+__copyright__ = 'Copyright 2016 Kenneth Reitz'
+
+# Attempt to enable urllib3's SNI support, if possible
+# Note: Patched by pip to prevent using the PyOpenSSL module. On Windows this
+#       prevents upgrading cryptography.
+# try:
+#     from .packages.urllib3.contrib import pyopenssl
+#     pyopenssl.inject_into_urllib3()
+# except ImportError:
+#     pass
+
+import warnings
+
+# urllib3's DependencyWarnings should be silenced.
+from .packages.urllib3.exceptions import DependencyWarning
+warnings.simplefilter('ignore', DependencyWarning)
+
+from . import utils
+from .models import Request, Response, PreparedRequest
+from .api import request, get, head, post, patch, put, delete, options
+from .sessions import session, Session
+from .status_codes import codes
+from .exceptions import (
+    RequestException, Timeout, URLRequired,
+    TooManyRedirects, HTTPError, ConnectionError,
+    FileModeWarning, ConnectTimeout, ReadTimeout
+)
+
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+logging.getLogger(__name__).addHandler(NullHandler())
+
+# FileModeWarnings go off per the default.
+warnings.simplefilter('default', FileModeWarning, append=True)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py
new file mode 100644
index 0000000..4a4c4e0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/adapters.py
@@ -0,0 +1,503 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.adapters
+~~~~~~~~~~~~~~~~~
+
+This module contains the transport adapters that Requests uses to define
+and maintain connections.
+"""
+
+import os.path
+import socket
+
+from .models import Response
+from .packages.urllib3.poolmanager import PoolManager, proxy_from_url
+from .packages.urllib3.response import HTTPResponse
+from .packages.urllib3.util import Timeout as TimeoutSauce
+from .packages.urllib3.util.retry import Retry
+from .compat import urlparse, basestring
+from .utils import (DEFAULT_CA_BUNDLE_PATH, get_encoding_from_headers,
+                    prepend_scheme_if_needed, get_auth_from_url, urldefragauth,
+                    select_proxy, to_native_string)
+from .structures import CaseInsensitiveDict
+from .packages.urllib3.exceptions import ClosedPoolError
+from .packages.urllib3.exceptions import ConnectTimeoutError
+from .packages.urllib3.exceptions import HTTPError as _HTTPError
+from .packages.urllib3.exceptions import MaxRetryError
+from .packages.urllib3.exceptions import NewConnectionError
+from .packages.urllib3.exceptions import ProxyError as _ProxyError
+from .packages.urllib3.exceptions import ProtocolError
+from .packages.urllib3.exceptions import ReadTimeoutError
+from .packages.urllib3.exceptions import SSLError as _SSLError
+from .packages.urllib3.exceptions import ResponseError
+from .cookies import extract_cookies_to_jar
+from .exceptions import (ConnectionError, ConnectTimeout, ReadTimeout, SSLError,
+                         ProxyError, RetryError, InvalidSchema)
+from .auth import _basic_auth_str
+
+try:
+    from .packages.urllib3.contrib.socks import SOCKSProxyManager
+except ImportError:
+    def SOCKSProxyManager(*args, **kwargs):
+        raise InvalidSchema("Missing dependencies for SOCKS support.")
+
+DEFAULT_POOLBLOCK = False
+DEFAULT_POOLSIZE = 10
+DEFAULT_RETRIES = 0
+DEFAULT_POOL_TIMEOUT = None
+
+
+class BaseAdapter(object):
+    """The Base Transport Adapter"""
+
+    def __init__(self):
+        super(BaseAdapter, self).__init__()
+
+    def send(self, request, stream=False, timeout=None, verify=True,
+             cert=None, proxies=None):
+        """Sends PreparedRequest object. Returns Response object.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param stream: (optional) Whether to stream the request content.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param verify: (optional) Whether to verify SSL certificates.
+        :param cert: (optional) Any user-provided SSL certificate to be trusted.
+        :param proxies: (optional) The proxies dictionary to apply to the request.
+        """
+        raise NotImplementedError
+
+    def close(self):
+        """Cleans up adapter specific items."""
+        raise NotImplementedError
+
+
+class HTTPAdapter(BaseAdapter):
+    """The built-in HTTP Adapter for urllib3.
+
+    Provides a general-case interface for Requests sessions to contact HTTP and
+    HTTPS urls by implementing the Transport Adapter interface. This class will
+    usually be created by the :class:`Session <Session>` class under the
+    covers.
+
+    :param pool_connections: The number of urllib3 connection pools to cache.
+    :param pool_maxsize: The maximum number of connections to save in the pool.
+    :param max_retries: The maximum number of retries each connection
+        should attempt. Note, this applies only to failed DNS lookups, socket
+        connections and connection timeouts, never to requests where data has
+        made it to the server. By default, Requests does not retry failed
+        connections. If you need granular control over the conditions under
+        which we retry a request, import urllib3's ``Retry`` class and pass
+        that instead.
+    :param pool_block: Whether the connection pool should block for connections.
+
+    Usage::
+
+      >>> import requests
+      >>> s = requests.Session()
+      >>> a = requests.adapters.HTTPAdapter(max_retries=3)
+      >>> s.mount('http://', a)
+    """
+    __attrs__ = ['max_retries', 'config', '_pool_connections', '_pool_maxsize',
+                 '_pool_block']
+
+    def __init__(self, pool_connections=DEFAULT_POOLSIZE,
+                 pool_maxsize=DEFAULT_POOLSIZE, max_retries=DEFAULT_RETRIES,
+                 pool_block=DEFAULT_POOLBLOCK):
+        if max_retries == DEFAULT_RETRIES:
+            self.max_retries = Retry(0, read=False)
+        else:
+            self.max_retries = Retry.from_int(max_retries)
+        self.config = {}
+        self.proxy_manager = {}
+
+        super(HTTPAdapter, self).__init__()
+
+        self._pool_connections = pool_connections
+        self._pool_maxsize = pool_maxsize
+        self._pool_block = pool_block
+
+        self.init_poolmanager(pool_connections, pool_maxsize, block=pool_block)
+
+    def __getstate__(self):
+        return dict((attr, getattr(self, attr, None)) for attr in
+                    self.__attrs__)
+
+    def __setstate__(self, state):
+        # Can't handle by adding 'proxy_manager' to self.__attrs__ because
+        # self.poolmanager uses a lambda function, which isn't pickleable.
+        self.proxy_manager = {}
+        self.config = {}
+
+        for attr, value in state.items():
+            setattr(self, attr, value)
+
+        self.init_poolmanager(self._pool_connections, self._pool_maxsize,
+                              block=self._pool_block)
+
+    def init_poolmanager(self, connections, maxsize, block=DEFAULT_POOLBLOCK, **pool_kwargs):
+        """Initializes a urllib3 PoolManager.
+
+        This method should not be called from user code, and is only
+        exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param connections: The number of urllib3 connection pools to cache.
+        :param maxsize: The maximum number of connections to save in the pool.
+        :param block: Block when no free connections are available.
+        :param pool_kwargs: Extra keyword arguments used to initialize the Pool Manager.
+        """
+        # save these values for pickling
+        self._pool_connections = connections
+        self._pool_maxsize = maxsize
+        self._pool_block = block
+
+        self.poolmanager = PoolManager(num_pools=connections, maxsize=maxsize,
+                                       block=block, strict=True, **pool_kwargs)
+
+    def proxy_manager_for(self, proxy, **proxy_kwargs):
+        """Return urllib3 ProxyManager for the given proxy.
+
+        This method should not be called from user code, and is only
+        exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param proxy: The proxy to return a urllib3 ProxyManager for.
+        :param proxy_kwargs: Extra keyword arguments used to configure the Proxy Manager.
+        :returns: ProxyManager
+        :rtype: requests.packages.urllib3.ProxyManager
+        """
+        if proxy in self.proxy_manager:
+            manager = self.proxy_manager[proxy]
+        elif proxy.lower().startswith('socks'):
+            username, password = get_auth_from_url(proxy)
+            manager = self.proxy_manager[proxy] = SOCKSProxyManager(
+                proxy,
+                username=username,
+                password=password,
+                num_pools=self._pool_connections,
+                maxsize=self._pool_maxsize,
+                block=self._pool_block,
+                **proxy_kwargs
+            )
+        else:
+            proxy_headers = self.proxy_headers(proxy)
+            manager = self.proxy_manager[proxy] = proxy_from_url(
+                proxy,
+                proxy_headers=proxy_headers,
+                num_pools=self._pool_connections,
+                maxsize=self._pool_maxsize,
+                block=self._pool_block,
+                **proxy_kwargs)
+
+        return manager
+
+    def cert_verify(self, conn, url, verify, cert):
+        """Verify a SSL certificate. This method should not be called from user
+        code, and is only exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param conn: The urllib3 connection object associated with the cert.
+        :param url: The requested URL.
+        :param verify: Whether we should actually verify the certificate.
+        :param cert: The SSL certificate to verify.
+        """
+        if url.lower().startswith('https') and verify:
+
+            cert_loc = None
+
+            # Allow self-specified cert location.
+            if verify is not True:
+                cert_loc = verify
+
+            if not cert_loc:
+                cert_loc = DEFAULT_CA_BUNDLE_PATH
+
+            if not cert_loc:
+                raise Exception("Could not find a suitable SSL CA certificate bundle.")
+
+            conn.cert_reqs = 'CERT_REQUIRED'
+
+            if not os.path.isdir(cert_loc):
+                conn.ca_certs = cert_loc
+            else:
+                conn.ca_cert_dir = cert_loc
+        else:
+            conn.cert_reqs = 'CERT_NONE'
+            conn.ca_certs = None
+            conn.ca_cert_dir = None
+
+        if cert:
+            if not isinstance(cert, basestring):
+                conn.cert_file = cert[0]
+                conn.key_file = cert[1]
+            else:
+                conn.cert_file = cert
+
+    def build_response(self, req, resp):
+        """Builds a :class:`Response <requests.Response>` object from a urllib3
+        response. This should not be called from user code, and is only exposed
+        for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`
+
+        :param req: The :class:`PreparedRequest <PreparedRequest>` used to generate the response.
+        :param resp: The urllib3 response object.
+        :rtype: requests.Response
+        """
+        response = Response()
+
+        # Fallback to None if there's no status_code, for whatever reason.
+        response.status_code = getattr(resp, 'status', None)
+
+        # Make headers case-insensitive.
+        response.headers = CaseInsensitiveDict(getattr(resp, 'headers', {}))
+
+        # Set encoding.
+        response.encoding = get_encoding_from_headers(response.headers)
+        response.raw = resp
+        response.reason = response.raw.reason
+
+        if isinstance(req.url, bytes):
+            response.url = req.url.decode('utf-8')
+        else:
+            response.url = req.url
+
+        # Add new cookies from the server.
+        extract_cookies_to_jar(response.cookies, req, resp)
+
+        # Give the Response some context.
+        response.request = req
+        response.connection = self
+
+        return response
+
+    def get_connection(self, url, proxies=None):
+        """Returns a urllib3 connection for the given URL. This should not be
+        called from user code, and is only exposed for use when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param url: The URL to connect to.
+        :param proxies: (optional) A Requests-style dictionary of proxies used on this request.
+        :rtype: requests.packages.urllib3.ConnectionPool
+        """
+        proxy = select_proxy(url, proxies)
+
+        if proxy:
+            proxy = prepend_scheme_if_needed(proxy, 'http')
+            proxy_manager = self.proxy_manager_for(proxy)
+            conn = proxy_manager.connection_from_url(url)
+        else:
+            # Only scheme should be lower case
+            parsed = urlparse(url)
+            url = parsed.geturl()
+            conn = self.poolmanager.connection_from_url(url)
+
+        return conn
+
+    def close(self):
+        """Disposes of any internal state.
+
+        Currently, this closes the PoolManager and any active ProxyManager,
+        which closes any pooled connections.
+        """
+        self.poolmanager.clear()
+        for proxy in self.proxy_manager.values():
+            proxy.clear()
+
+    def request_url(self, request, proxies):
+        """Obtain the url to use when making the final request.
+
+        If the message is being sent through a HTTP proxy, the full URL has to
+        be used. Otherwise, we should only use the path portion of the URL.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs.
+        :rtype: str
+        """
+        proxy = select_proxy(request.url, proxies)
+        scheme = urlparse(request.url).scheme
+
+        is_proxied_http_request = (proxy and scheme != 'https')
+        using_socks_proxy = False
+        if proxy:
+            proxy_scheme = urlparse(proxy).scheme.lower()
+            using_socks_proxy = proxy_scheme.startswith('socks')
+
+        url = request.path_url
+        if is_proxied_http_request and not using_socks_proxy:
+            url = urldefragauth(request.url)
+
+        return url
+
+    def add_headers(self, request, **kwargs):
+        """Add any headers needed by the connection. As of v2.0 this does
+        nothing by default, but is left for overriding by users that subclass
+        the :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` to add headers to.
+        :param kwargs: The keyword arguments from the call to send().
+        """
+        pass
+
+    def proxy_headers(self, proxy):
+        """Returns a dictionary of the headers to add to any request sent
+        through a proxy. This works with urllib3 magic to ensure that they are
+        correctly sent to the proxy, rather than in a tunnelled request if
+        CONNECT is being used.
+
+        This should not be called from user code, and is only exposed for use
+        when subclassing the
+        :class:`HTTPAdapter <requests.adapters.HTTPAdapter>`.
+
+        :param proxies: The url of the proxy being used for this request.
+        :rtype: dict
+        """
+        headers = {}
+        username, password = get_auth_from_url(proxy)
+
+        if username and password:
+            headers['Proxy-Authorization'] = _basic_auth_str(username,
+                                                             password)
+
+        return headers
+
+    def send(self, request, stream=False, timeout=None, verify=True, cert=None, proxies=None):
+        """Sends PreparedRequest object. Returns Response object.
+
+        :param request: The :class:`PreparedRequest <PreparedRequest>` being sent.
+        :param stream: (optional) Whether to stream the request content.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param verify: (optional) Whether to verify SSL certificates.
+        :param cert: (optional) Any user-provided SSL certificate to be trusted.
+        :param proxies: (optional) The proxies dictionary to apply to the request.
+        :rtype: requests.Response
+        """
+
+        conn = self.get_connection(request.url, proxies)
+
+        self.cert_verify(conn, request.url, verify, cert)
+        url = self.request_url(request, proxies)
+        self.add_headers(request)
+
+        chunked = not (request.body is None or 'Content-Length' in request.headers)
+
+        if isinstance(timeout, tuple):
+            try:
+                connect, read = timeout
+                timeout = TimeoutSauce(connect=connect, read=read)
+            except ValueError as e:
+                # this may raise a string formatting error.
+                err = ("Invalid timeout {0}. Pass a (connect, read) "
+                       "timeout tuple, or a single float to set "
+                       "both timeouts to the same value".format(timeout))
+                raise ValueError(err)
+        else:
+            timeout = TimeoutSauce(connect=timeout, read=timeout)
+
+        try:
+            if not chunked:
+                resp = conn.urlopen(
+                    method=request.method,
+                    url=url,
+                    body=request.body,
+                    headers=request.headers,
+                    redirect=False,
+                    assert_same_host=False,
+                    preload_content=False,
+                    decode_content=False,
+                    retries=self.max_retries,
+                    timeout=timeout
+                )
+
+            # Send the request.
+            else:
+                if hasattr(conn, 'proxy_pool'):
+                    conn = conn.proxy_pool
+
+                low_conn = conn._get_conn(timeout=DEFAULT_POOL_TIMEOUT)
+
+                try:
+                    low_conn.putrequest(request.method,
+                                        url,
+                                        skip_accept_encoding=True)
+
+                    for header, value in request.headers.items():
+                        low_conn.putheader(header, value)
+
+                    low_conn.endheaders()
+
+                    for i in request.body:
+                        low_conn.send(hex(len(i))[2:].encode('utf-8'))
+                        low_conn.send(b'\r\n')
+                        low_conn.send(i)
+                        low_conn.send(b'\r\n')
+                    low_conn.send(b'0\r\n\r\n')
+
+                    # Receive the response from the server
+                    try:
+                        # For Python 2.7+ versions, use buffering of HTTP
+                        # responses
+                        r = low_conn.getresponse(buffering=True)
+                    except TypeError:
+                        # For compatibility with Python 2.6 versions and back
+                        r = low_conn.getresponse()
+
+                    resp = HTTPResponse.from_httplib(
+                        r,
+                        pool=conn,
+                        connection=low_conn,
+                        preload_content=False,
+                        decode_content=False
+                    )
+                except:
+                    # If we hit any problems here, clean up the connection.
+                    # Then, reraise so that we can handle the actual exception.
+                    low_conn.close()
+                    raise
+
+        except (ProtocolError, socket.error) as err:
+            raise ConnectionError(err, request=request)
+
+        except MaxRetryError as e:
+            if isinstance(e.reason, ConnectTimeoutError):
+                # TODO: Remove this in 3.0.0: see #2811
+                if not isinstance(e.reason, NewConnectionError):
+                    raise ConnectTimeout(e, request=request)
+
+            if isinstance(e.reason, ResponseError):
+                raise RetryError(e, request=request)
+
+            if isinstance(e.reason, _ProxyError):
+                raise ProxyError(e, request=request)
+
+            raise ConnectionError(e, request=request)
+
+        except ClosedPoolError as e:
+            raise ConnectionError(e, request=request)
+
+        except _ProxyError as e:
+            raise ProxyError(e)
+
+        except (_SSLError, _HTTPError) as e:
+            if isinstance(e, _SSLError):
+                raise SSLError(e, request=request)
+            elif isinstance(e, ReadTimeoutError):
+                raise ReadTimeout(e, request=request)
+            else:
+                raise
+
+        return self.build_response(request, resp)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/api.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/api.py
new file mode 100644
index 0000000..580b3f3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/api.py
@@ -0,0 +1,148 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.api
+~~~~~~~~~~~~
+
+This module implements the Requests API.
+
+:copyright: (c) 2012 by Kenneth Reitz.
+:license: Apache2, see LICENSE for more details.
+"""
+
+from . import sessions
+
+
+def request(method, url, **kwargs):
+    """Constructs and sends a :class:`Request <Request>`.
+
+    :param method: method for the new :class:`Request` object.
+    :param url: URL for the new :class:`Request` object.
+    :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param json: (optional) json data to send in the body of the :class:`Request`.
+    :param headers: (optional) Dictionary of HTTP Headers to send with the :class:`Request`.
+    :param cookies: (optional) Dict or CookieJar object to send with the :class:`Request`.
+    :param files: (optional) Dictionary of ``'name': file-like-objects`` (or ``{'name': file-tuple}``) for multipart encoding upload.
+        ``file-tuple`` can be a 2-tuple ``('filename', fileobj)``, 3-tuple ``('filename', fileobj, 'content_type')``
+        or a 4-tuple ``('filename', fileobj, 'content_type', custom_headers)``, where ``'content-type'`` is a string
+        defining the content type of the given file and ``custom_headers`` a dict-like object containing additional headers
+        to add for the file.
+    :param auth: (optional) Auth tuple to enable Basic/Digest/Custom HTTP Auth.
+    :param timeout: (optional) How long to wait for the server to send data
+        before giving up, as a float, or a :ref:`(connect timeout, read
+        timeout) <timeouts>` tuple.
+    :type timeout: float or tuple
+    :param allow_redirects: (optional) Boolean. Set to True if POST/PUT/DELETE redirect following is allowed.
+    :type allow_redirects: bool
+    :param proxies: (optional) Dictionary mapping protocol to the URL of the proxy.
+    :param verify: (optional) whether the SSL cert will be verified. A CA_BUNDLE path can also be provided. Defaults to ``True``.
+    :param stream: (optional) if ``False``, the response content will be immediately downloaded.
+    :param cert: (optional) if String, path to ssl client cert file (.pem). If Tuple, ('cert', 'key') pair.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.request('GET', 'http://httpbin.org/get')
+      <Response [200]>
+    """
+
+    # By using the 'with' statement we are sure the session is closed, thus we
+    # avoid leaving sockets open which can trigger a ResourceWarning in some
+    # cases, and look like a memory leak in others.
+    with sessions.Session() as session:
+        return session.request(method=method, url=url, **kwargs)
+
+
+def get(url, params=None, **kwargs):
+    """Sends a GET request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param params: (optional) Dictionary or bytes to be sent in the query string for the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', True)
+    return request('get', url, params=params, **kwargs)
+
+
+def options(url, **kwargs):
+    """Sends a OPTIONS request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', True)
+    return request('options', url, **kwargs)
+
+
+def head(url, **kwargs):
+    """Sends a HEAD request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    kwargs.setdefault('allow_redirects', False)
+    return request('head', url, **kwargs)
+
+
+def post(url, data=None, json=None, **kwargs):
+    """Sends a POST request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param json: (optional) json data to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('post', url, data=data, json=json, **kwargs)
+
+
+def put(url, data=None, **kwargs):
+    """Sends a PUT request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('put', url, data=data, **kwargs)
+
+
+def patch(url, data=None, **kwargs):
+    """Sends a PATCH request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('patch', url,  data=data, **kwargs)
+
+
+def delete(url, **kwargs):
+    """Sends a DELETE request.
+
+    :param url: URL for the new :class:`Request` object.
+    :param \*\*kwargs: Optional arguments that ``request`` takes.
+    :return: :class:`Response <Response>` object
+    :rtype: requests.Response
+    """
+
+    return request('delete', url, **kwargs)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/auth.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/auth.py
new file mode 100644
index 0000000..49bcb24
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/auth.py
@@ -0,0 +1,252 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.auth
+~~~~~~~~~~~~~
+
+This module contains the authentication handlers for Requests.
+"""
+
+import os
+import re
+import time
+import hashlib
+import threading
+
+from base64 import b64encode
+
+from .compat import urlparse, str
+from .cookies import extract_cookies_to_jar
+from .utils import parse_dict_header, to_native_string
+from .status_codes import codes
+
+CONTENT_TYPE_FORM_URLENCODED = 'application/x-www-form-urlencoded'
+CONTENT_TYPE_MULTI_PART = 'multipart/form-data'
+
+
+def _basic_auth_str(username, password):
+    """Returns a Basic Auth string."""
+
+    authstr = 'Basic ' + to_native_string(
+        b64encode(('%s:%s' % (username, password)).encode('latin1')).strip()
+    )
+
+    return authstr
+
+
+class AuthBase(object):
+    """Base class that all auth implementations derive from"""
+
+    def __call__(self, r):
+        raise NotImplementedError('Auth hooks must be callable.')
+
+
+class HTTPBasicAuth(AuthBase):
+    """Attaches HTTP Basic Authentication to the given Request object."""
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+
+    def __eq__(self, other):
+        return all([
+            self.username == getattr(other, 'username', None),
+            self.password == getattr(other, 'password', None)
+        ])
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __call__(self, r):
+        r.headers['Authorization'] = _basic_auth_str(self.username, self.password)
+        return r
+
+
+class HTTPProxyAuth(HTTPBasicAuth):
+    """Attaches HTTP Proxy Authentication to a given Request object."""
+
+    def __call__(self, r):
+        r.headers['Proxy-Authorization'] = _basic_auth_str(self.username, self.password)
+        return r
+
+
+class HTTPDigestAuth(AuthBase):
+    """Attaches HTTP Digest Authentication to the given Request object."""
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+        # Keep state in per-thread local storage
+        self._thread_local = threading.local()
+
+    def init_per_thread_state(self):
+        # Ensure state is initialized just once per-thread
+        if not hasattr(self._thread_local, 'init'):
+            self._thread_local.init = True
+            self._thread_local.last_nonce = ''
+            self._thread_local.nonce_count = 0
+            self._thread_local.chal = {}
+            self._thread_local.pos = None
+            self._thread_local.num_401_calls = None
+
+    def build_digest_header(self, method, url):
+        """
+        :rtype: str
+        """
+
+        realm = self._thread_local.chal['realm']
+        nonce = self._thread_local.chal['nonce']
+        qop = self._thread_local.chal.get('qop')
+        algorithm = self._thread_local.chal.get('algorithm')
+        opaque = self._thread_local.chal.get('opaque')
+        hash_utf8 = None
+
+        if algorithm is None:
+            _algorithm = 'MD5'
+        else:
+            _algorithm = algorithm.upper()
+        # lambdas assume digest modules are imported at the top level
+        if _algorithm == 'MD5' or _algorithm == 'MD5-SESS':
+            def md5_utf8(x):
+                if isinstance(x, str):
+                    x = x.encode('utf-8')
+                return hashlib.md5(x).hexdigest()
+            hash_utf8 = md5_utf8
+        elif _algorithm == 'SHA':
+            def sha_utf8(x):
+                if isinstance(x, str):
+                    x = x.encode('utf-8')
+                return hashlib.sha1(x).hexdigest()
+            hash_utf8 = sha_utf8
+
+        KD = lambda s, d: hash_utf8("%s:%s" % (s, d))
+
+        if hash_utf8 is None:
+            return None
+
+        # XXX not implemented yet
+        entdig = None
+        p_parsed = urlparse(url)
+        #: path is request-uri defined in RFC 2616 which should not be empty
+        path = p_parsed.path or "/"
+        if p_parsed.query:
+            path += '?' + p_parsed.query
+
+        A1 = '%s:%s:%s' % (self.username, realm, self.password)
+        A2 = '%s:%s' % (method, path)
+
+        HA1 = hash_utf8(A1)
+        HA2 = hash_utf8(A2)
+
+        if nonce == self._thread_local.last_nonce:
+            self._thread_local.nonce_count += 1
+        else:
+            self._thread_local.nonce_count = 1
+        ncvalue = '%08x' % self._thread_local.nonce_count
+        s = str(self._thread_local.nonce_count).encode('utf-8')
+        s += nonce.encode('utf-8')
+        s += time.ctime().encode('utf-8')
+        s += os.urandom(8)
+
+        cnonce = (hashlib.sha1(s).hexdigest()[:16])
+        if _algorithm == 'MD5-SESS':
+            HA1 = hash_utf8('%s:%s:%s' % (HA1, nonce, cnonce))
+
+        if not qop:
+            respdig = KD(HA1, "%s:%s" % (nonce, HA2))
+        elif qop == 'auth' or 'auth' in qop.split(','):
+            noncebit = "%s:%s:%s:%s:%s" % (
+                nonce, ncvalue, cnonce, 'auth', HA2
+                )
+            respdig = KD(HA1, noncebit)
+        else:
+            # XXX handle auth-int.
+            return None
+
+        self._thread_local.last_nonce = nonce
+
+        # XXX should the partial digests be encoded too?
+        base = 'username="%s", realm="%s", nonce="%s", uri="%s", ' \
+               'response="%s"' % (self.username, realm, nonce, path, respdig)
+        if opaque:
+            base += ', opaque="%s"' % opaque
+        if algorithm:
+            base += ', algorithm="%s"' % algorithm
+        if entdig:
+            base += ', digest="%s"' % entdig
+        if qop:
+            base += ', qop="auth", nc=%s, cnonce="%s"' % (ncvalue, cnonce)
+
+        return 'Digest %s' % (base)
+
+    def handle_redirect(self, r, **kwargs):
+        """Reset num_401_calls counter on redirects."""
+        if r.is_redirect:
+            self._thread_local.num_401_calls = 1
+
+    def handle_401(self, r, **kwargs):
+        """
+        Takes the given response and tries digest-auth, if needed.
+
+        :rtype: requests.Response
+        """
+
+        if self._thread_local.pos is not None:
+            # Rewind the file position indicator of the body to where
+            # it was to resend the request.
+            r.request.body.seek(self._thread_local.pos)
+        s_auth = r.headers.get('www-authenticate', '')
+
+        if 'digest' in s_auth.lower() and self._thread_local.num_401_calls < 2:
+
+            self._thread_local.num_401_calls += 1
+            pat = re.compile(r'digest ', flags=re.IGNORECASE)
+            self._thread_local.chal = parse_dict_header(pat.sub('', s_auth, count=1))
+
+            # Consume content and release the original connection
+            # to allow our new request to reuse the same one.
+            r.content
+            r.close()
+            prep = r.request.copy()
+            extract_cookies_to_jar(prep._cookies, r.request, r.raw)
+            prep.prepare_cookies(prep._cookies)
+
+            prep.headers['Authorization'] = self.build_digest_header(
+                prep.method, prep.url)
+            _r = r.connection.send(prep, **kwargs)
+            _r.history.append(r)
+            _r.request = prep
+
+            return _r
+
+        self._thread_local.num_401_calls = 1
+        return r
+
+    def __call__(self, r):
+        # Initialize per-thread state, if needed
+        self.init_per_thread_state()
+        # If we have a saved nonce, skip the 401
+        if self._thread_local.last_nonce:
+            r.headers['Authorization'] = self.build_digest_header(r.method, r.url)
+        try:
+            self._thread_local.pos = r.body.tell()
+        except AttributeError:
+            # In the case of HTTPDigestAuth being reused and the body of
+            # the previous request was a file-like object, pos has the
+            # file position of the previous body. Ensure it's set to
+            # None.
+            self._thread_local.pos = None
+        r.register_hook('response', self.handle_401)
+        r.register_hook('response', self.handle_redirect)
+        self._thread_local.num_401_calls = 1
+
+        return r
+
+    def __eq__(self, other):
+        return all([
+            self.username == getattr(other, 'username', None),
+            self.password == getattr(other, 'password', None)
+        ])
+
+    def __ne__(self, other):
+        return not self == other
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem
new file mode 100644
index 0000000..6a66daa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cacert.pem
@@ -0,0 +1,5616 @@
+
+# Issuer: O=Equifax OU=Equifax Secure Certificate Authority
+# Subject: O=Equifax OU=Equifax Secure Certificate Authority
+# Label: "Equifax Secure CA"
+# Serial: 903804111
+# MD5 Fingerprint: 67:cb:9d:c0:13:24:8a:82:9b:b2:17:1e:d1:1b:ec:d4
+# SHA1 Fingerprint: d2:32:09:ad:23:d3:14:23:21:74:e4:0d:7f:9d:62:13:97:86:63:3a
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Subject: CN=GlobalSign Root CA O=GlobalSign nv-sa OU=Root CA
+# Label: "GlobalSign Root CA"
+# Serial: 4835703278459707669005204
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign Root CA - R2
+# Label: "GlobalSign Root CA - R2"
+# Serial: 4835703278459682885658125
+# MD5 Fingerprint: 94:14:77:7e:3e:5e:fd:8f:30:bd:41:b0:cf:e7:d0:30
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Label: "Verisign Class 3 Public Primary Certification Authority - G3"
+# Serial: 206684696279472310254277870180966723415
+# MD5 Fingerprint: cd:68:b6:a7:c7:c4:ce:75:e0:1d:4f:57:44:61:92:09
+# SHA1 Fingerprint: 13:2d:0d:45:53:4b:69:97:cd:b2:d5:c3:39:e2:55:76:60:9b:5c:c6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=VeriSign Class 4 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 4 Public Primary Certification Authority - G3 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 1999 VeriSign, Inc. - For authorized use only
+# Label: "Verisign Class 4 Public Primary Certification Authority - G3"
+# Serial: 314531972711909413743075096039378935511
+# MD5 Fingerprint: db:c8:f2:27:2e:b1:ea:6a:29:23:5d:fe:56:3e:33:df
+# SHA1 Fingerprint: c8:ec:8c:87:92:69:cb:4b:ab:39:e9:8d:7e:57:67:f3:14:95:73:9d
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Subject: CN=Entrust.net Certification Authority (2048) O=Entrust.net OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Label: "Entrust.net Premium 2048 Secure Server CA"
+# Serial: 946069240
+# MD5 Fingerprint: ee:29:31:bc:32:7e:9a:e6:e8:b5:f7:51:b4:34:71:90
+# SHA1 Fingerprint: 50:30:06:09:1d:97:d4:f5:ae:39:f7:cb:e7:92:7d:7d:65:2d:34:31
+# SHA256 Fingerprint: 6d:c4:71:72:e0:1c:bc:b0:bf:62:58:0d:89:5f:e2:b8:ac:9a:d4:f8:73:80:1e:0c:10:b9:c8:37:d2:1e:b1:77
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Subject: CN=Baltimore CyberTrust Root O=Baltimore OU=CyberTrust
+# Label: "Baltimore CyberTrust Root"
+# Serial: 33554617
+# MD5 Fingerprint: ac:b6:94:a5:9c:17:e0:d7:91:52:9b:b1:97:06:a6:e4
+# SHA1 Fingerprint: d4:de:20:d0:5e:66:fc:53:fe:1a:50:88:2c:78:db:28:52:ca:e4:74
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AddTrust Class 1 CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Class 1 CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Low-Value Services Root"
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+# Issuer: CN=AddTrust External CA Root O=AddTrust AB OU=AddTrust External TTP Network
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+# Label: "AddTrust External Root"
+# Serial: 1
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+# Issuer: CN=AddTrust Public CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Public CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Public Services Root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AddTrust Qualified CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Subject: CN=AddTrust Qualified CA Root O=AddTrust AB OU=AddTrust TTP Network
+# Label: "AddTrust Qualified Certificates Root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Subject: CN=Entrust Root Certification Authority O=Entrust, Inc. OU=www.entrust.net/CPS is incorporated by reference/(c) 2006 Entrust, Inc.
+# Label: "Entrust Root Certification Authority"
+# Serial: 1164660820
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=RSA Security Inc OU=RSA Security 2048 V3
+# Subject: O=RSA Security Inc OU=RSA Security 2048 V3
+# Label: "RSA Security 2048 v3"
+# Serial: 13297492616345471454730593562152402946
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=GeoTrust Global CA O=GeoTrust Inc.
+# Subject: CN=GeoTrust Global CA O=GeoTrust Inc.
+# Label: "GeoTrust Global CA"
+# Serial: 144470
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Global CA 2 O=GeoTrust Inc.
+# Subject: CN=GeoTrust Global CA 2 O=GeoTrust Inc.
+# Label: "GeoTrust Global CA 2"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=GeoTrust Universal CA O=GeoTrust Inc.
+# Subject: CN=GeoTrust Universal CA O=GeoTrust Inc.
+# Label: "GeoTrust Universal CA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GeoTrust Universal CA 2 O=GeoTrust Inc.
+# Subject: CN=GeoTrust Universal CA 2 O=GeoTrust Inc.
+# Label: "GeoTrust Universal CA 2"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Visa eCommerce Root O=VISA OU=Visa International Service Association
+# Subject: CN=Visa eCommerce Root O=VISA OU=Visa International Service Association
+# Label: "Visa eCommerce Root"
+# Serial: 25952180776285836048024890241505565794
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Certum CA O=Unizeto Sp. z o.o.
+# Subject: CN=Certum CA O=Unizeto Sp. z o.o.
+# Label: "Certum Root CA"
+# Serial: 65568
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=AAA Certificate Services O=Comodo CA Limited
+# Subject: CN=AAA Certificate Services O=Comodo CA Limited
+# Label: "Comodo AAA Services root"
+# Serial: 1
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+
+# Issuer: CN=Secure Certificate Services O=Comodo CA Limited
+# Subject: CN=Secure Certificate Services O=Comodo CA Limited
+# Label: "Comodo Secure Services root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Trusted Certificate Services O=Comodo CA Limited
+# Subject: CN=Trusted Certificate Services O=Comodo CA Limited
+# Label: "Comodo Trusted Services root"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root Certification Authority O=QuoVadis Limited OU=Root Certification Authority
+# Subject: CN=QuoVadis Root Certification Authority O=QuoVadis Limited OU=Root Certification Authority
+# Label: "QuoVadis Root CA"
+# Serial: 985026699
+# MD5 Fingerprint: 27:de:36:fe:72:b7:00:03:00:9d:f4:f0:1e:6c:04:24
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2"
+# Serial: 1289
+# MD5 Fingerprint: 5e:39:7b:dd:f8:ba:ec:82:e9:ac:62:ba:0c:54:00:2b
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3"
+# Serial: 1478
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=SECOM Trust.net OU=Security Communication RootCA1
+# Subject: O=SECOM Trust.net OU=Security Communication RootCA1
+# Label: "Security Communication Root CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Sonera Class2 CA O=Sonera
+# Subject: CN=Sonera Class2 CA O=Sonera
+# Label: "Sonera Class 2 Root CA"
+# Serial: 29
+# MD5 Fingerprint: a3:ec:75:0f:2e:88:df:fa:48:01:4e:0b:5c:48:6f:fb
+# SHA1 Fingerprint: 37:f7:6d:e6:07:7c:90:c5:b1:3e:93:1a:b7:41:10:b4:f2:e4:9a:27
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Staat der Nederlanden Root CA O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA"
+# Serial: 10000010
+# MD5 Fingerprint: 60:84:7c:5a:ce:db:0c:d4:cb:a7:e9:fe:02:c6:a9:c0
+# SHA1 Fingerprint: 10:1d:fa:3f:d5:0b:cb:bb:9b:b5:60:0c:19:55:a4:1a:f4:73:3a:04
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=UTN - DATACorp SGC O=The USERTRUST Network OU=http://www.usertrust.com
+# Subject: CN=UTN - DATACorp SGC O=The USERTRUST Network OU=http://www.usertrust.com
+# Label: "UTN DATACorp SGC Root CA"
+# Serial: 91374294542884689855167577680241077609
+# MD5 Fingerprint: b3:a5:3e:77:21:6d:ac:4a:c0:c9:fb:d5:41:3d:ca:06
+# SHA1 Fingerprint: 58:11:9f:0e:12:82:87:ea:50:fd:d9:87:45:6f:4f:78:dc:fa:d6:d4
+# SHA256 Fingerprint: 85:fb:2f:91:dd:12:27:5a:01:45:b6:36:53:4f:84:02:4a:d6:8b:69:b8:ee:88:68:4f:f7:11:37:58:05:b3:48
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=UTN-USERFirst-Hardware O=The USERTRUST Network OU=http://www.usertrust.com
+# Subject: CN=UTN-USERFirst-Hardware O=The USERTRUST Network OU=http://www.usertrust.com
+# Label: "UTN USERFirst Hardware Root CA"
+# Serial: 91374294542884704022267039221184531197
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Chambers of Commerce Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Subject: CN=Chambers of Commerce Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Label: "Camerfirma Chambers of Commerce Root"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Global Chambersign Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Subject: CN=Global Chambersign Root O=AC Camerfirma SA CIF A82743287 OU=http://www.chambersign.org
+# Label: "Camerfirma Global Chambersign Root"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Kozjegyzoi (Class A) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Kozjegyzoi (Class A) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Notary (Class A) Root"
+# Serial: 259
+# MD5 Fingerprint: 86:38:6d:5e:49:63:6c:85:5c:db:6d:dc:94:b7:d0:f7
+# SHA1 Fingerprint: ac:ed:5f:65:53:fd:25:ce:01:5f:1f:7a:48:3b:6a:74:9f:61:78:c6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Subject: CN=XRamp Global Certification Authority O=XRamp Security Services Inc OU=www.xrampsecurity.com
+# Label: "XRamp Global CA Root"
+# Serial: 107108908803651509692980124233745014957
+# MD5 Fingerprint: a1:0b:44:b3:ca:10:d8:00:6e:9d:0f:d8:0f:92:0a:d1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Subject: O=The Go Daddy Group, Inc. OU=Go Daddy Class 2 Certification Authority
+# Label: "Go Daddy Class 2 CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Subject: O=Starfield Technologies, Inc. OU=Starfield Class 2 Certification Authority
+# Label: "Starfield Class 2 CA"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Subject: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Label: "StartCom Certification Authority"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=Government Root Certification Authority
+# Subject: O=Government Root Certification Authority
+# Label: "Taiwan GRCA"
+# Serial: 42023070807708724159991140556527066870
+# MD5 Fingerprint: 37:85:44:53:32:45:1f:20:f0:f3:95:e1:25:c4:43:4e
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Swisscom Root CA 1 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root CA 1 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root CA 1"
+# Serial: 122348795730808398873664200247279986742
+# MD5 Fingerprint: f8:38:7c:77:88:df:2c:16:68:2e:c2:e2:52:4b:b8:f9
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root CA"
+# Serial: 17154717934120587862167794914071425081
+# MD5 Fingerprint: 87:ce:0b:7b:2a:0e:49:00:e1:58:71:9b:37:a8:93:72
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root CA"
+# Serial: 10944719598952040374951832963794454346
+# MD5 Fingerprint: 79:e4:a9:84:0d:7d:3a:96:d7:c0:4f:e2:43:4c:89:2e
+# SHA1 Fingerprint: a8:98:5d:3a:65:e5:e5:c4:b2:d7:d6:6d:40:c6:dd:2f:b1:9c:54:36
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert High Assurance EV Root CA O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert High Assurance EV Root CA"
+# Serial: 3553400076410547919724730734378100087
+# MD5 Fingerprint: d4:74:de:57:5c:39:b2:d3:9c:85:83:c5:c0:65:49:8a
+# SHA1 Fingerprint: 5f:b7:ee:06:33:e2:59:db:ad:0c:4c:9a:e6:d3:8f:1a:61:c7:dc:25
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Class 2 Primary CA O=Certplus
+# Subject: CN=Class 2 Primary CA O=Certplus
+# Label: "Certplus Class 2 Primary CA"
+# Serial: 177770208045934040241468760488327595043
+# MD5 Fingerprint: 88:2c:8c:52:b8:a2:3c:f3:f7:bb:03:ea:ae:ac:42:0b
+# SHA1 Fingerprint: 74:20:74:41:72:9c:dd:92:ec:79:31:d8:23:10:8d:c2:81:92:e2:bb
+# SHA256 Fingerprint: 0f:99:3c:8a:ef:97:ba:af:56:87:14:0e:d5:9a:d1:82:1b:b4:af:ac:f0:aa:9a:58:b5:d5:7a:33:8a:3a:fb:cb
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Subject: CN=DST Root CA X3 O=Digital Signature Trust Co.
+# Label: "DST Root CA X3"
+# Serial: 91299735575339953335919266965803778155
+# MD5 Fingerprint: 41:03:52:dc:0f:f7:50:1b:16:f0:02:8e:ba:6f:45:c5
+# SHA1 Fingerprint: da:c9:02:4f:54:d8:f6:df:94:93:5f:b1:73:26:38:ca:6a:d7:7c:13
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=DST ACES CA X6 O=Digital Signature Trust OU=DST ACES
+# Subject: CN=DST ACES CA X6 O=Digital Signature Trust OU=DST ACES
+# Label: "DST ACES CA X6"
+# Serial: 17771143917277623872238992636097467865
+# MD5 Fingerprint: 21:d8:4c:82:2b:99:09:33:a2:eb:14:24:8d:8e:5f:e8
+# SHA1 Fingerprint: 40:54:da:6f:1c:3f:40:74:ac:ed:0f:ec:cd:db:79:d1:53:fb:90:1d
+# SHA256 Fingerprint: 76:7c:95:5a:76:41:2c:89:af:68:8e:90:a1:c7:0f:55:6c:fd:6b:60:25:db:ea:10:41:6d:7e:b6:83:1f:8c:40
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Kasım 2005
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Kasım 2005
+# Label: "TURKTRUST Certificate Services Provider Root 2"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Gold CA - G2 O=SwissSign AG
+# Label: "SwissSign Gold CA - G2"
+# Serial: 13492815561806991280
+# MD5 Fingerprint: 24:77:d9:a8:91:d1:3b:fa:88:2d:c2:ff:f8:cd:33:93
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Subject: CN=SwissSign Silver CA - G2 O=SwissSign AG
+# Label: "SwissSign Silver CA - G2"
+# Serial: 5700383053117599563
+# MD5 Fingerprint: e0:06:a1:c9:7d:cf:c9:fc:0d:c0:56:75:96:d8:62:13
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=GeoTrust Primary Certification Authority O=GeoTrust Inc.
+# Subject: CN=GeoTrust Primary Certification Authority O=GeoTrust Inc.
+# Label: "GeoTrust Primary Certification Authority"
+# Serial: 32798226551256963324313806436981982369
+# MD5 Fingerprint: 02:26:c3:01:5e:08:30:37:43:a9:d0:7d:cf:37:e6:bf
+# SHA1 Fingerprint: 32:3c:11:8e:1b:f7:b8:b6:52:54:e2:e2:10:0d:d6:02:90:37:f0:96
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=thawte Primary Root CA O=thawte, Inc. OU=Certification Services Division/(c) 2006 thawte, Inc. - For authorized use only
+# Subject: CN=thawte Primary Root CA O=thawte, Inc. OU=Certification Services Division/(c) 2006 thawte, Inc. - For authorized use only
+# Label: "thawte Primary Root CA"
+# Serial: 69529181992039203566298953787712940909
+# MD5 Fingerprint: 8c:ca:dc:0b:22:ce:f5:be:72:ac:41:1a:11:a8:d8:12
+# SHA1 Fingerprint: 91:c6:d6:ee:3e:8a:c8:63:84:e5:48:c2:99:29:5c:75:6c:81:7b:81
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G5 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2006 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Class 3 Public Primary Certification Authority - G5"
+# Serial: 33037644167568058970164719475676101450
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+# Issuer: CN=SecureTrust CA O=SecureTrust Corporation
+# Subject: CN=SecureTrust CA O=SecureTrust Corporation
+# Label: "SecureTrust CA"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Secure Global CA O=SecureTrust Corporation
+# Subject: CN=Secure Global CA O=SecureTrust Corporation
+# Label: "Secure Global CA"
+# Serial: 9751836167731051554232119481456978597
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=COMODO Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO Certification Authority O=COMODO CA Limited
+# Label: "COMODO Certification Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Subject: CN=Network Solutions Certificate Authority O=Network Solutions L.L.C.
+# Label: "Network Solutions Certificate Authority"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=WellsSecure Public Root Certificate Authority O=Wells Fargo WellsSecure OU=Wells Fargo Bank NA
+# Subject: CN=WellsSecure Public Root Certificate Authority O=Wells Fargo WellsSecure OU=Wells Fargo Bank NA
+# Label: "WellsSecure Public Root Certificate Authority"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO ECC Certification Authority O=COMODO CA Limited
+# Label: "COMODO ECC Certification Authority"
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+# Issuer: CN=IGC/A O=PM/SGDN OU=DCSSI
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+# Label: "IGC/A"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=SECOM Trust Systems CO.,LTD. OU=Security Communication EV RootCA1
+# Subject: O=SECOM Trust Systems CO.,LTD. OU=Security Communication EV RootCA1
+# Label: "Security Communication EV RootCA1"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=OISTE WISeKey Global Root GA CA O=WISeKey OU=Copyright (c) 2005/OISTE Foundation Endorsed
+# Subject: CN=OISTE WISeKey Global Root GA CA O=WISeKey OU=Copyright (c) 2005/OISTE Foundation Endorsed
+# Label: "OISTE WISeKey Global Root GA CA"
+# Serial: 86718877871133159090080555911823548314
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Microsec e-Szigno Root CA O=Microsec Ltd. OU=e-Szigno CA
+# Subject: CN=Microsec e-Szigno Root CA O=Microsec Ltd. OU=e-Szigno CA
+# Label: "Microsec e-Szigno Root CA"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Certigna O=Dhimyotis
+# Subject: CN=Certigna O=Dhimyotis
+# Label: "Certigna"
+# Serial: 18364802974209362175
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Deutsche Telekom Root CA 2 O=Deutsche Telekom AG OU=T-TeleSec Trust Center
+# Subject: CN=Deutsche Telekom Root CA 2 O=Deutsche Telekom AG OU=T-TeleSec Trust Center
+# Label: "Deutsche Telekom Root CA 2"
+# Serial: 38
+# MD5 Fingerprint: 74:01:4a:91:b1:08:c4:58:ce:47:cd:f0:dd:11:53:08
+# SHA1 Fingerprint: 85:a4:08:c0:9c:19:3e:5d:51:58:7d:cd:d6:13:30:fd:8c:de:37:bf
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Subject: CN=Cybertrust Global Root O=Cybertrust, Inc
+# Label: "Cybertrust Global Root"
+# Serial: 4835703278459682877484360
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+# SHA1 Fingerprint: 5f:43:e5:b1:bf:f8:78:8c:ac:1c:c7:ca:4a:9a:c6:22:2b:cc:34:c6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Subject: O=Chunghwa Telecom Co., Ltd. OU=ePKI Root Certification Authority
+# Label: "ePKI Root Certification Authority"
+# Serial: 28956088682735189655030529057352760477
+# MD5 Fingerprint: 1b:2e:00:ca:26:06:90:3d:ad:fe:6f:15:68:d3:6b:b3
+# SHA1 Fingerprint: 67:65:0d:f1:7e:8e:7e:5b:82:40:a4:f4:56:4b:cf:e2:3d:69:c6:f0
+# SHA256 Fingerprint: c0:a6:f4:dc:63:a2:4b:fd:cf:54:ef:2a:6a:08:2a:0a:72:de:35:80:3e:2f:f5:ff:52:7a:e5:d8:72:06:df:d5
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜBİTAK UEKAE Kök Sertifika Hizmet Sağlayıcısı - Sürüm 3 O=Türkiye Bilimsel ve Teknolojik Araştırma Kurumu - TÜBİTAK OU=Ulusal Elektronik ve Kriptoloji Araştırma Enstitüsü - UEKAE/Kamu Sertifikasyon Merkezi
+# Subject: CN=TÜBİTAK UEKAE Kök Sertifika Hizmet Sağlayıcısı - Sürüm 3 O=Türkiye Bilimsel ve Teknolojik Araştırma Kurumu - TÜBİTAK OU=Ulusal Elektronik ve Kriptoloji Araştırma Enstitüsü - UEKAE/Kamu Sertifikasyon Merkezi
+# Label: "T\xc3\x9c\x42\xC4\xB0TAK UEKAE K\xC3\xB6k Sertifika Hizmet Sa\xC4\x9Flay\xc4\xb1\x63\xc4\xb1s\xc4\xb1 - S\xC3\xBCr\xC3\xBCm 3"
+# Serial: 17
+# MD5 Fingerprint: ed:41:f5:8c:50:c5:2b:9c:73:e6:ee:6c:eb:c2:a8:26
+# SHA1 Fingerprint: 1b:4b:39:61:26:27:6b:64:91:a2:68:6d:d7:02:43:21:2d:1f:1d:96
+# SHA256 Fingerprint: e4:c7:34:30:d7:a5:b5:09:25:df:43:37:0a:0d:21:6e:9a:79:b9:d6:db:83:73:a0:c6:9e:b1:cc:31:c7:c5:2a
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Buypass Class 2 CA 1 O=Buypass AS-983163327
+# Subject: CN=Buypass Class 2 CA 1 O=Buypass AS-983163327
+# Label: "Buypass Class 2 CA 1"
+# Serial: 1
+# MD5 Fingerprint: b8:08:9a:f0:03:cc:1b:0d:c8:6c:0b:76:a1:75:64:23
+# SHA1 Fingerprint: a0:a1:ab:90:c9:fc:84:7b:3b:12:61:e8:97:7d:5f:d3:22:61:d3:cc
+# SHA256 Fingerprint: 0f:4e:9c:dd:26:4b:02:55:50:d1:70:80:63:40:21:4f:e9:44:34:c9:b0:2f:69:7e:c7:10:fc:5f:ea:fb:5e:38
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=EBG Elektronik Sertifika Hizmet Sağlayıcısı O=EBG Bilişim Teknolojileri ve Hizmetleri A.Ş.
+# Subject: CN=EBG Elektronik Sertifika Hizmet Sağlayıcısı O=EBG Bilişim Teknolojileri ve Hizmetleri A.Ş.
+# Label: "EBG Elektronik Sertifika Hizmet Sa\xC4\x9Flay\xc4\xb1\x63\xc4\xb1s\xc4\xb1"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=certSIGN OU=certSIGN ROOT CA
+# Subject: O=certSIGN OU=certSIGN ROOT CA
+# Label: "certSIGN ROOT CA"
+# Serial: 35210227249154
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=CNNIC ROOT O=CNNIC
+# Subject: CN=CNNIC ROOT O=CNNIC
+# Label: "CNNIC ROOT"
+# Serial: 1228079105
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=Japanese Government OU=ApplicationCA
+# Subject: O=Japanese Government OU=ApplicationCA
+# Label: "ApplicationCA - Japanese Government"
+# Serial: 49
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only
+# Subject: CN=GeoTrust Primary Certification Authority - G3 O=GeoTrust Inc. OU=(c) 2008 GeoTrust Inc. - For authorized use only
+# Label: "GeoTrust Primary Certification Authority - G3"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=thawte Primary Root CA - G2 O=thawte, Inc. OU=(c) 2007 thawte, Inc. - For authorized use only
+# Subject: CN=thawte Primary Root CA - G2 O=thawte, Inc. OU=(c) 2007 thawte, Inc. - For authorized use only
+# Label: "thawte Primary Root CA - G2"
+# Serial: 71758320672825410020661621085256472406
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=thawte Primary Root CA - G3 O=thawte, Inc. OU=Certification Services Division/(c) 2008 thawte, Inc. - For authorized use only
+# Subject: CN=thawte Primary Root CA - G3 O=thawte, Inc. OU=Certification Services Division/(c) 2008 thawte, Inc. - For authorized use only
+# Label: "thawte Primary Root CA - G3"
+# Serial: 127614157056681299805556476275995414779
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+# Issuer: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only
+# Subject: CN=GeoTrust Primary Certification Authority - G2 O=GeoTrust Inc. OU=(c) 2007 GeoTrust Inc. - For authorized use only
+# Label: "GeoTrust Primary Certification Authority - G2"
+# Serial: 80682863203381065782177908751794619243
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Universal Root Certification Authority O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2008 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Universal Root Certification Authority"
+# Serial: 85209574734084581917763752644031726877
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only
+# Subject: CN=VeriSign Class 3 Public Primary Certification Authority - G4 O=VeriSign, Inc. OU=VeriSign Trust Network/(c) 2007 VeriSign, Inc. - For authorized use only
+# Label: "VeriSign Class 3 Public Primary Certification Authority - G4"
+# Serial: 63143484348153506665311985501458640051
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=NetLock Arany (Class Gold) Főtanúsítvány O=NetLock Kft. OU=Tanúsítványkiadók (Certification Services)
+# Subject: CN=NetLock Arany (Class Gold) Főtanúsítvány O=NetLock Kft. OU=Tanúsítványkiadók (Certification Services)
+# Label: "NetLock Arany (Class Gold) Főtanúsítvány"
+# Serial: 80544274841616
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
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+# Issuer: CN=Staat der Nederlanden Root CA - G2 O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA - G2 O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA - G2"
+# Serial: 10000012
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+-----BEGIN CERTIFICATE-----
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+# Label: "Juur-SK"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Subject: CN=Hongkong Post Root CA 1 O=Hongkong Post
+# Label: "Hongkong Post Root CA 1"
+# Serial: 1000
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Subject: CN=SecureSign RootCA11 O=Japan Certification Services, Inc.
+# Label: "SecureSign RootCA11"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=ACEDICOM Root O=EDICOM OU=PKI
+# Subject: CN=ACEDICOM Root O=EDICOM OU=PKI
+# Label: "ACEDICOM Root"
+# Serial: 7029493972724711941
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Subject: CN=Microsec e-Szigno Root CA 2009 O=Microsec Ltd.
+# Label: "Microsec e-Szigno Root CA 2009"
+# Serial: 14014712776195784473
+# MD5 Fingerprint: f8:49:f4:03:bc:44:2d:83:be:48:69:7d:29:64:fc:b1
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+-----BEGIN CERTIFICATE-----
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+# Label: "GlobalSign Root CA - R3"
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+# Issuer: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Subject: CN=Autoridad de Certificacion Firmaprofesional CIF A62634068
+# Label: "Autoridad de Certificacion Firmaprofesional CIF A62634068"
+# Serial: 6047274297262753887
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Izenpe.com O=IZENPE S.A.
+# Subject: CN=Izenpe.com O=IZENPE S.A.
+# Label: "Izenpe.com"
+# Serial: 917563065490389241595536686991402621
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Chambers of Commerce Root - 2008 O=AC Camerfirma S.A.
+# Subject: CN=Chambers of Commerce Root - 2008 O=AC Camerfirma S.A.
+# Label: "Chambers of Commerce Root - 2008"
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Global Chambersign Root - 2008 O=AC Camerfirma S.A.
+# Subject: CN=Global Chambersign Root - 2008 O=AC Camerfirma S.A.
+# Label: "Global Chambersign Root - 2008"
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+# Subject: CN=Go Daddy Root Certificate Authority - G2 O=GoDaddy.com, Inc.
+# Label: "Go Daddy Root Certificate Authority - G2"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Starfield Root Certificate Authority - G2 O=Starfield Technologies, Inc.
+# Subject: CN=Starfield Root Certificate Authority - G2 O=Starfield Technologies, Inc.
+# Label: "Starfield Root Certificate Authority - G2"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Starfield Services Root Certificate Authority - G2 O=Starfield Technologies, Inc.
+# Subject: CN=Starfield Services Root Certificate Authority - G2 O=Starfield Technologies, Inc.
+# Label: "Starfield Services Root Certificate Authority - G2"
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+-----BEGIN CERTIFICATE-----
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+# Label: "AffirmTrust Commercial"
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+-----BEGIN CERTIFICATE-----
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+# Label: "AffirmTrust Networking"
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+-----BEGIN CERTIFICATE-----
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+# Subject: CN=Certinomis - Autorité Racine O=Certinomis OU=0002 433998903
+# Label: "Certinomis - Autorité Racine"
+# Serial: 1
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+# Subject: CN=Root CA Generalitat Valenciana O=Generalitat Valenciana OU=PKIGVA
+# Label: "Root CA Generalitat Valenciana"
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=A-Trust-nQual-03 O=A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH OU=A-Trust-nQual-03
+# Subject: CN=A-Trust-nQual-03 O=A-Trust Ges. f. Sicherheitssysteme im elektr. Datenverkehr GmbH OU=A-Trust-nQual-03
+# Label: "A-Trust-nQual-03"
+# Serial: 93214
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA
+# Subject: CN=TWCA Root Certification Authority O=TAIWAN-CA OU=Root CA
+# Label: "TWCA Root Certification Authority"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
+# Subject: O=SECOM Trust Systems CO.,LTD. OU=Security Communication RootCA2
+# Label: "Security Communication RootCA2"
+# Serial: 0
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Hellenic Academic and Research Institutions RootCA 2011 O=Hellenic Academic and Research Institutions Cert. Authority
+# Subject: CN=Hellenic Academic and Research Institutions RootCA 2011 O=Hellenic Academic and Research Institutions Cert. Authority
+# Label: "Hellenic Academic and Research Institutions RootCA 2011"
+# Serial: 0
+# MD5 Fingerprint: 73:9f:4c:4b:73:5b:79:e9:fa:ba:1c:ef:6e:cb:d5:c9
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Actalis Authentication Root CA O=Actalis S.p.A./03358520967
+# Subject: CN=Actalis Authentication Root CA O=Actalis S.p.A./03358520967
+# Label: "Actalis Authentication Root CA"
+# Serial: 6271844772424770508
+# MD5 Fingerprint: 69:c1:0d:4f:07:a3:1b:c3:fe:56:3d:04:bc:11:f6:a6
+# SHA1 Fingerprint: f3:73:b3:87:06:5a:28:84:8a:f2:f3:4a:ce:19:2b:dd:c7:8e:9c:ac
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: O=Trustis Limited OU=Trustis FPS Root CA
+# Subject: O=Trustis Limited OU=Trustis FPS Root CA
+# Label: "Trustis FPS Root CA"
+# Serial: 36053640375399034304724988975563710553
+# MD5 Fingerprint: 30:c9:e7:1e:6b:e6:14:eb:65:b2:16:69:20:31:67:4d
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Subject: CN=StartCom Certification Authority O=StartCom Ltd. OU=Secure Digital Certificate Signing
+# Label: "StartCom Certification Authority"
+# Serial: 45
+# MD5 Fingerprint: c9:3b:0d:84:41:fc:a4:76:79:23:08:57:de:10:19:16
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=StartCom Certification Authority G2 O=StartCom Ltd.
+# Subject: CN=StartCom Certification Authority G2 O=StartCom Ltd.
+# Label: "StartCom Certification Authority G2"
+# Serial: 59
+# MD5 Fingerprint: 78:4b:fb:9e:64:82:0a:d3:b8:4c:62:f3:64:f2:90:64
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Buypass Class 2 Root CA O=Buypass AS-983163327
+# Subject: CN=Buypass Class 2 Root CA O=Buypass AS-983163327
+# Label: "Buypass Class 2 Root CA"
+# Serial: 2
+# MD5 Fingerprint: 46:a7:d2:fe:45:fb:64:5a:a8:59:90:9b:78:44:9b:29
+# SHA1 Fingerprint: 49:0a:75:74:de:87:0a:47:fe:58:ee:f6:c7:6b:eb:c6:0b:12:40:99
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Subject: CN=Buypass Class 3 Root CA O=Buypass AS-983163327
+# Label: "Buypass Class 3 Root CA"
+# Serial: 2
+# MD5 Fingerprint: 3d:3b:18:9e:2c:64:5a:e8:d5:88:ce:0e:f9:37:c2:ec
+# SHA1 Fingerprint: da:fa:f7:fa:66:84:ec:06:8f:14:50:bd:c7:c2:81:a5:bc:a9:64:57
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 3 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 3"
+# Serial: 1
+# MD5 Fingerprint: ca:fb:40:a8:4e:39:92:8a:1d:fe:8e:2f:c4:27:ea:ef
+# SHA1 Fingerprint: 55:a6:72:3e:cb:f2:ec:cd:c3:23:74:70:19:9d:2a:be:11:e3:81:d1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=EE Certification Centre Root CA O=AS Sertifitseerimiskeskus
+# Subject: CN=EE Certification Centre Root CA O=AS Sertifitseerimiskeskus
+# Label: "EE Certification Centre Root CA"
+# Serial: 112324828676200291871926431888494945866
+# MD5 Fingerprint: 43:5e:88:d4:7d:1a:4a:7e:fd:84:2e:52:eb:01:d4:6f
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Aralık 2007
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş. (c) Aralık 2007
+# Label: "TURKTRUST Certificate Services Provider Root 2007"
+# Serial: 1
+# MD5 Fingerprint: 2b:70:20:56:86:82:a0:18:c8:07:53:12:28:70:21:72
+# SHA1 Fingerprint: f1:7f:6f:b6:31:dc:99:e3:a3:c8:7f:fe:1c:f1:81:10:88:d9:60:33
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 2009"
+# Serial: 623603
+# MD5 Fingerprint: cd:e0:25:69:8d:47:ac:9c:89:35:90:f7:fd:51:3d:2f
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Subject: CN=D-TRUST Root Class 3 CA 2 EV 2009 O=D-Trust GmbH
+# Label: "D-TRUST Root Class 3 CA 2 EV 2009"
+# Serial: 623604
+# MD5 Fingerprint: aa:c6:43:2c:5e:2d:cd:c4:34:c0:50:4f:11:02:4f:b6
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Autoridad de Certificacion Raiz del Estado Venezolano O=Sistema Nacional de Certificacion Electronica OU=Superintendencia de Servicios de Certificacion Electronica
+# Subject: CN=PSCProcert O=Sistema Nacional de Certificacion Electronica OU=Proveedor de Certificados PROCERT
+# Label: "PSCProcert"
+# Serial: 11
+# MD5 Fingerprint: e6:24:e9:12:01:ae:0c:de:8e:85:c4:ce:a3:12:dd:ec
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=China Internet Network Information Center EV Certificates Root O=China Internet Network Information Center
+# Subject: CN=China Internet Network Information Center EV Certificates Root O=China Internet Network Information Center
+# Label: "China Internet Network Information Center EV Certificates Root"
+# Serial: 1218379777
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Swisscom Root CA 2 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root CA 2 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root CA 2"
+# Serial: 40698052477090394928831521023204026294
+# MD5 Fingerprint: 5b:04:69:ec:a5:83:94:63:18:a7:86:d0:e4:f2:6e:19
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Swisscom Root EV CA 2 O=Swisscom OU=Digital Certificate Services
+# Subject: CN=Swisscom Root EV CA 2 O=Swisscom OU=Digital Certificate Services
+# Label: "Swisscom Root EV CA 2"
+# Serial: 322973295377129385374608406479535262296
+# MD5 Fingerprint: 7b:30:34:9f:dd:0a:4b:6b:35:ca:31:51:28:5d:ae:ec
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=CA Disig Root R1 O=Disig a.s.
+# Subject: CN=CA Disig Root R1 O=Disig a.s.
+# Label: "CA Disig Root R1"
+# Serial: 14052245610670616104
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=CA Disig Root R2 O=Disig a.s.
+# Subject: CN=CA Disig Root R2 O=Disig a.s.
+# Label: "CA Disig Root R2"
+# Serial: 10572350602393338211
+# MD5 Fingerprint: 26:01:fb:d8:27:a7:17:9a:45:54:38:1a:43:01:3b:03
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=ACCVRAIZ1 O=ACCV OU=PKIACCV
+# Subject: CN=ACCVRAIZ1 O=ACCV OU=PKIACCV
+# Label: "ACCVRAIZ1"
+# Serial: 6828503384748696800
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Subject: CN=TWCA Global Root CA O=TAIWAN-CA OU=Root CA
+# Label: "TWCA Global Root CA"
+# Serial: 3262
+# MD5 Fingerprint: f9:03:7e:cf:e6:9e:3c:73:7a:2a:90:07:69:ff:2b:96
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Subject: CN=TeliaSonera Root CA v1 O=TeliaSonera
+# Label: "TeliaSonera Root CA v1"
+# Serial: 199041966741090107964904287217786801558
+# MD5 Fingerprint: 37:41:49:1b:18:56:9a:26:f5:ad:c2:66:fb:40:a5:4c
+# SHA1 Fingerprint: 43:13:bb:96:f1:d5:86:9b:c1:4e:6a:92:f6:cf:f6:34:69:87:82:37
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=E-Tugra Certification Authority O=E-Tuğra EBG Bilişim Teknolojileri ve Hizmetleri A.Ş. OU=E-Tugra Sertifikasyon Merkezi
+# Subject: CN=E-Tugra Certification Authority O=E-Tuğra EBG Bilişim Teknolojileri ve Hizmetleri A.Ş. OU=E-Tugra Sertifikasyon Merkezi
+# Label: "E-Tugra Certification Authority"
+# Serial: 7667447206703254355
+# MD5 Fingerprint: b8:a1:03:63:b0:bd:21:71:70:8a:6f:13:3a:bb:79:49
+# SHA1 Fingerprint: 51:c6:e7:08:49:06:6e:f3:92:d4:5c:a0:0d:6d:a3:62:8f:c3:52:39
+# SHA256 Fingerprint: b0:bf:d5:2b:b0:d7:d9:bd:92:bf:5d:4d:c1:3d:a2:55:c0:2c:54:2f:37:83:65:ea:89:39:11:f5:5e:55:f2:3c
+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Subject: CN=T-TeleSec GlobalRoot Class 2 O=T-Systems Enterprise Services GmbH OU=T-Systems Trust Center
+# Label: "T-TeleSec GlobalRoot Class 2"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Atos TrustedRoot 2011 O=Atos
+# Subject: CN=Atos TrustedRoot 2011 O=Atos
+# Label: "Atos TrustedRoot 2011"
+# Serial: 6643877497813316402
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 1 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 1 G3"
+# Serial: 687049649626669250736271037606554624078720034195
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 2 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 2 G3"
+# Serial: 390156079458959257446133169266079962026824725800
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Subject: CN=QuoVadis Root CA 3 G3 O=QuoVadis Limited
+# Label: "QuoVadis Root CA 3 G3"
+# Serial: 268090761170461462463995952157327242137089239581
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G2"
+# Serial: 15385348160840213938643033620894905419
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Assured ID Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Assured ID Root G3"
+# Serial: 15459312981008553731928384953135426796
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G2 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G2"
+# Serial: 4293743540046975378534879503202253541
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Global Root G3 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Global Root G3"
+# Serial: 7089244469030293291760083333884364146
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Subject: CN=DigiCert Trusted Root G4 O=DigiCert Inc OU=www.digicert.com
+# Label: "DigiCert Trusted Root G4"
+# Serial: 7451500558977370777930084869016614236
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Certification Authority of WoSign O=WoSign CA Limited
+# Subject: CN=Certification Authority of WoSign O=WoSign CA Limited
+# Label: "WoSign"
+# Serial: 125491772294754854453622855443212256657
+# MD5 Fingerprint: a1:f2:f9:b5:d2:c8:7a:74:b8:f3:05:f1:d7:e1:84:8d
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=CA 沃通根证书 O=WoSign CA Limited
+# Subject: CN=CA 沃通根证书 O=WoSign CA Limited
+# Label: "WoSign China"
+# Serial: 106921963437422998931660691310149453965
+# MD5 Fingerprint: 78:83:5b:52:16:76:c4:24:3b:83:78:e8:ac:da:9a:93
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Subject: CN=COMODO RSA Certification Authority O=COMODO CA Limited
+# Label: "COMODO RSA Certification Authority"
+# Serial: 101909084537582093308941363524873193117
+# MD5 Fingerprint: 1b:31:b0:71:40:36:cc:14:36:91:ad:c4:3e:fd:ec:18
+# SHA1 Fingerprint: af:e5:d2:44:a8:d1:19:42:30:ff:47:9f:e2:f8:97:bb:cd:7a:8c:b4
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust RSA Certification Authority O=The USERTRUST Network
+# Label: "USERTrust RSA Certification Authority"
+# Serial: 2645093764781058787591871645665788717
+# MD5 Fingerprint: 1b:fe:69:d1:91:b7:19:33:a3:72:a8:0f:e1:55:e5:b5
+# SHA1 Fingerprint: 2b:8f:1b:57:33:0d:bb:a2:d0:7a:6c:51:f7:0e:e9:0d:da:b9:ad:8e
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Subject: CN=USERTrust ECC Certification Authority O=The USERTRUST Network
+# Label: "USERTrust ECC Certification Authority"
+# Serial: 123013823720199481456569720443997572134
+# MD5 Fingerprint: fa:68:bc:d9:b5:7f:ad:fd:c9:1d:06:83:28:cc:24:c1
+# SHA1 Fingerprint: d1:cb:ca:5d:b2:d5:2a:7f:69:3b:67:4d:e5:f0:5a:1d:0c:95:7d:f0
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R4
+# Label: "GlobalSign ECC Root CA - R4"
+# Serial: 14367148294922964480859022125800977897474
+# MD5 Fingerprint: 20:f0:27:68:d1:7e:a0:9d:0e:e6:2a:ca:df:5c:89:8e
+# SHA1 Fingerprint: 69:69:56:2e:40:80:f4:24:a1:e7:19:9f:14:ba:f3:ee:58:ab:6a:bb
+# SHA256 Fingerprint: be:c9:49:11:c2:95:56:76:db:6c:0a:55:09:86:d7:6e:3b:a0:05:66:7c:44:2c:97:62:b4:fb:b7:73:de:22:8c
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Subject: CN=GlobalSign O=GlobalSign OU=GlobalSign ECC Root CA - R5
+# Label: "GlobalSign ECC Root CA - R5"
+# Serial: 32785792099990507226680698011560947931244
+# MD5 Fingerprint: 9f:ad:3b:1c:02:1e:8a:ba:17:74:38:81:0c:a2:bc:08
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Staat der Nederlanden Root CA - G3 O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden Root CA - G3 O=Staat der Nederlanden
+# Label: "Staat der Nederlanden Root CA - G3"
+# Serial: 10003001
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Subject: CN=Staat der Nederlanden EV Root CA O=Staat der Nederlanden
+# Label: "Staat der Nederlanden EV Root CA"
+# Serial: 10000013
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Commercial Root CA 1 O=IdenTrust
+# Label: "IdenTrust Commercial Root CA 1"
+# Serial: 13298821034946342390520003877796839426
+# MD5 Fingerprint: b3:3e:77:73:75:ee:a0:d3:e3:7e:49:63:49:59:bb:c7
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Subject: CN=IdenTrust Public Sector Root CA 1 O=IdenTrust
+# Label: "IdenTrust Public Sector Root CA 1"
+# Serial: 13298821034946342390521976156843933698
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - G2 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2009 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - G2"
+# Serial: 1246989352
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Subject: CN=Entrust Root Certification Authority - EC1 O=Entrust, Inc. OU=See www.entrust.net/legal-terms/(c) 2012 Entrust, Inc. - for authorized use only
+# Label: "Entrust Root Certification Authority - EC1"
+# Serial: 51543124481930649114116133369
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Subject: CN=CFCA EV ROOT O=China Financial Certification Authority
+# Label: "CFCA EV ROOT"
+# Serial: 407555286
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Label: "TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H5"
+# Serial: 156233699172481
+# MD5 Fingerprint: da:70:8e:f0:22:df:93:26:f6:5f:9f:d3:15:06:52:4e
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Subject: CN=TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6 O=TÜRKTRUST Bilgi İletişim ve Bilişim Güvenliği Hizmetleri A.Ş.
+# Label: "TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı H6"
+# Serial: 138134509972618
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=Certinomis - Root CA O=Certinomis OU=0002 433998903
+# Subject: CN=Certinomis - Root CA O=Certinomis OU=0002 433998903
+# Label: "Certinomis - Root CA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+# Issuer: CN=Entrust.net Secure Server Certification Authority O=Entrust.net OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Subject: CN=Entrust.net Secure Server Certification Authority O=Entrust.net OU=www.entrust.net/CPS incorp. by ref. (limits liab.)/(c) 1999 Entrust.net Limited
+# Label: "Entrust.net Secure Server CA"
+# Serial: 927650371
+# MD5 Fingerprint: df:f2:80:73:cc:f1:e6:61:73:fc:f5:42:e9:c5:7c:ee
+# SHA1 Fingerprint: 99:a6:9b:e6:1a:fe:88:6b:4d:2b:82:00:7c:b8:54:fc:31:7e:15:39
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 2 Policy Validation Authority
+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 2 Policy Validation Authority
+# Label: "ValiCert Class 2 VA"
+# Serial: 1
+# MD5 Fingerprint: a9:23:75:9b:ba:49:36:6e:31:c2:db:f2:e7:66:ba:87
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Expressz (Class C) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Expressz (Class C) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Express (Class C) Root"
+# Serial: 104
+# MD5 Fingerprint: 4f:eb:f1:f0:70:c2:80:63:5d:58:9f:da:12:3c:a9:c4
+# SHA1 Fingerprint: e3:92:51:2f:0a:cf:f5:05:df:f6:de:06:7f:75:37:e1:65:ea:57:4b
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=NetLock Uzleti (Class B) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Subject: CN=NetLock Uzleti (Class B) Tanusitvanykiado O=NetLock Halozatbiztonsagi Kft. OU=Tanusitvanykiadok
+# Label: "NetLock Business (Class B) Root"
+# Serial: 105
+# MD5 Fingerprint: 39:16:aa:b9:6a:41:e1:14:69:df:9e:6c:3b:72:dc:b6
+# SHA1 Fingerprint: 87:9f:4b:ee:05:df:98:58:3b:e3:60:d6:33:e7:0d:3f:fe:98:71:af
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+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
+
+# Issuer: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 3 Policy Validation Authority
+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 3 Policy Validation Authority
+# Label: "RSA Root Certificate 1"
+# Serial: 1
+# MD5 Fingerprint: a2:6f:53:b7:ee:40:db:4a:68:e7:fa:18:d9:10:4b:72
+# SHA1 Fingerprint: 69:bd:8c:f4:9c:d3:00:fb:59:2e:17:93:ca:55:6a:f3:ec:aa:35:fb
+# SHA256 Fingerprint: bc:23:f9:8a:31:3c:b9:2d:e3:bb:fc:3a:5a:9f:44:61:ac:39:49:4c:4a:e1:5a:9e:9d:f1:31:e9:9b:73:01:9a
+-----BEGIN CERTIFICATE-----
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+# Subject: CN=http://www.valicert.com/ O=ValiCert, Inc. OU=ValiCert Class 1 Policy Validation Authority
+# Label: "ValiCert Class 1 VA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Equifax Secure eBusiness CA-1 O=Equifax Secure Inc.
+# Subject: CN=Equifax Secure eBusiness CA-1 O=Equifax Secure Inc.
+# Label: "Equifax Secure eBusiness CA 1"
+# Serial: 4
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Equifax Secure Global eBusiness CA-1 O=Equifax Secure Inc.
+# Subject: CN=Equifax Secure Global eBusiness CA-1 O=Equifax Secure Inc.
+# Label: "Equifax Secure Global eBusiness CA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: CN=Thawte Premium Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Subject: CN=Thawte Premium Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Label: "Thawte Premium Server CA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: CN=Thawte Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Subject: CN=Thawte Server CA O=Thawte Consulting cc OU=Certification Services Division
+# Label: "Thawte Server CA"
+# Serial: 1
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+-----BEGIN CERTIFICATE-----
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+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Label: "Verisign Class 3 Public Primary Certification Authority"
+# Serial: 149843929435818692848040365716851702463
+# MD5 Fingerprint: 10:fc:63:5d:f6:26:3e:0d:f3:25:be:5f:79:cd:67:67
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority
+# Label: "Verisign Class 3 Public Primary Certification Authority"
+# Serial: 80507572722862485515306429940691309246
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+-----BEGIN CERTIFICATE-----
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+
+# Issuer: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority - G2/(c) 1998 VeriSign, Inc. - For authorized use only/VeriSign Trust Network
+# Subject: O=VeriSign, Inc. OU=Class 3 Public Primary Certification Authority - G2/(c) 1998 VeriSign, Inc. - For authorized use only/VeriSign Trust Network
+# Label: "Verisign Class 3 Public Primary Certification Authority - G2"
+# Serial: 167285380242319648451154478808036881606
+# MD5 Fingerprint: a2:33:9b:4c:74:78:73:d4:6c:e7:c1:f3:8d:cb:5c:e9
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+-----BEGIN CERTIFICATE-----
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+13gfqLptQ5GVj0VXXn7F+8qkBOvqlzdUMG+7AUcyM83cV5tkaWH4mx0ciU9cZwID
+AQABMA0GCSqGSIb3DQEBBQUAA4GBAFFNzb5cy5gZnBWyATl4Lk0PZ3BwmcYQWpSk
+U01UbSuvDV1Ai2TT1+7eVmGSX6bEHRBhNtMsJzzoKQm5EWR0zLVznxxIqbxhAe7i
+F6YM40AIOw7n60RzKprxaZLvcRTDOaxxp5EJb+RxBrO6WVcmeQD2+A2iMzAo1KpY
+oJ2daZH9
+-----END CERTIFICATE-----
+
+# Issuer: CN=GTE CyberTrust Global Root O=GTE Corporation OU=GTE CyberTrust Solutions, Inc.
+# Subject: CN=GTE CyberTrust Global Root O=GTE Corporation OU=GTE CyberTrust Solutions, Inc.
+# Label: "GTE CyberTrust Global Root"
+# Serial: 421
+# MD5 Fingerprint: ca:3d:d3:68:f1:03:5c:d0:32:fa:b8:2b:59:e8:5a:db
+# SHA1 Fingerprint: 97:81:79:50:d8:1c:96:70:cc:34:d8:09:cf:79:44:31:36:7e:f4:74
+# SHA256 Fingerprint: a5:31:25:18:8d:21:10:aa:96:4b:02:c7:b7:c6:da:32:03:17:08:94:e5:fb:71:ff:fb:66:67:d5:e6:81:0a:36
+-----BEGIN CERTIFICATE-----
+MIICWjCCAcMCAgGlMA0GCSqGSIb3DQEBBAUAMHUxCzAJBgNVBAYTAlVTMRgwFgYD
+VQQKEw9HVEUgQ29ycG9yYXRpb24xJzAlBgNVBAsTHkdURSBDeWJlclRydXN0IFNv
+bHV0aW9ucywgSW5jLjEjMCEGA1UEAxMaR1RFIEN5YmVyVHJ1c3QgR2xvYmFsIFJv
+b3QwHhcNOTgwODEzMDAyOTAwWhcNMTgwODEzMjM1OTAwWjB1MQswCQYDVQQGEwJV
+UzEYMBYGA1UEChMPR1RFIENvcnBvcmF0aW9uMScwJQYDVQQLEx5HVEUgQ3liZXJU
+cnVzdCBTb2x1dGlvbnMsIEluYy4xIzAhBgNVBAMTGkdURSBDeWJlclRydXN0IEds
+b2JhbCBSb290MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCVD6C28FCc6HrH
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+GwnpXtlR22ciYaQqPEh346B8pt5zohQDhT37qw4wxYMWM4ETCJ57NE7fQMh017l9
+3PR2VX2bY1QY6fDq81yx2YtCHrnAlU66+tXifPVoYb+O7AWXX1uw16OFNMQkpw0P
+lZPvy5TYnh+dXIVtx6quTx8itc2VrbqnzPmrC3p/
+-----END CERTIFICATE-----
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/certs.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/certs.py
new file mode 100644
index 0000000..f922b99
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/certs.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+requests.certs
+~~~~~~~~~~~~~~
+
+This module returns the preferred default CA certificate bundle.
+
+If you are packaging Requests, e.g., for a Linux distribution or a managed
+environment, you can change the definition of where() to return a separately
+packaged CA bundle.
+"""
+import os.path
+
+try:
+    from certifi import where
+except ImportError:
+    def where():
+        """Return the preferred certificate bundle."""
+        # vendored bundle inside Requests
+        return os.path.join(os.path.dirname(__file__), 'cacert.pem')
+
+if __name__ == '__main__':
+    print(where())
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/compat.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/compat.py
new file mode 100644
index 0000000..353ec29
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/compat.py
@@ -0,0 +1,68 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.compat
+~~~~~~~~~~~~~~~
+
+This module handles import compatibility issues between Python 2 and
+Python 3.
+"""
+
+from .packages import chardet
+
+import sys
+
+# -------
+# Pythons
+# -------
+
+# Syntax sugar.
+_ver = sys.version_info
+
+#: Python 2.x?
+is_py2 = (_ver[0] == 2)
+
+#: Python 3.x?
+is_py3 = (_ver[0] == 3)
+
+# Note: We've patched out simplejson support in pip because it prevents
+#       upgrading simplejson on Windows.
+# try:
+#     import simplejson as json
+# except (ImportError, SyntaxError):
+#     # simplejson does not support Python 3.2, it throws a SyntaxError
+#     # because of u'...' Unicode literals.
+import json
+
+# ---------
+# Specifics
+# ---------
+
+if is_py2:
+    from urllib import quote, unquote, quote_plus, unquote_plus, urlencode, getproxies, proxy_bypass
+    from urlparse import urlparse, urlunparse, urljoin, urlsplit, urldefrag
+    from urllib2 import parse_http_list
+    import cookielib
+    from Cookie import Morsel
+    from StringIO import StringIO
+    from .packages.urllib3.packages.ordered_dict import OrderedDict
+
+    builtin_str = str
+    bytes = str
+    str = unicode
+    basestring = basestring
+    numeric_types = (int, long, float)
+
+elif is_py3:
+    from urllib.parse import urlparse, urlunparse, urljoin, urlsplit, urlencode, quote, unquote, quote_plus, unquote_plus, urldefrag
+    from urllib.request import parse_http_list, getproxies, proxy_bypass
+    from http import cookiejar as cookielib
+    from http.cookies import Morsel
+    from io import StringIO
+    from collections import OrderedDict
+
+    builtin_str = str
+    str = str
+    bytes = bytes
+    basestring = (str, bytes)
+    numeric_types = (int, float)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py
new file mode 100644
index 0000000..41a2fde
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/cookies.py
@@ -0,0 +1,540 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.cookies
+~~~~~~~~~~~~~~~~
+
+Compatibility code to be able to use `cookielib.CookieJar` with requests.
+
+requests.utils imports from here, so be careful with imports.
+"""
+
+import copy
+import time
+import calendar
+import collections
+from .compat import cookielib, urlparse, urlunparse, Morsel
+
+try:
+    import threading
+    # grr, pyflakes: this fixes "redefinition of unused 'threading'"
+    threading
+except ImportError:
+    import dummy_threading as threading
+
+
+class MockRequest(object):
+    """Wraps a `requests.Request` to mimic a `urllib2.Request`.
+
+    The code in `cookielib.CookieJar` expects this interface in order to correctly
+    manage cookie policies, i.e., determine whether a cookie can be set, given the
+    domains of the request and the cookie.
+
+    The original request object is read-only. The client is responsible for collecting
+    the new headers via `get_new_headers()` and interpreting them appropriately. You
+    probably want `get_cookie_header`, defined below.
+    """
+
+    def __init__(self, request):
+        self._r = request
+        self._new_headers = {}
+        self.type = urlparse(self._r.url).scheme
+
+    def get_type(self):
+        return self.type
+
+    def get_host(self):
+        return urlparse(self._r.url).netloc
+
+    def get_origin_req_host(self):
+        return self.get_host()
+
+    def get_full_url(self):
+        # Only return the response's URL if the user hadn't set the Host
+        # header
+        if not self._r.headers.get('Host'):
+            return self._r.url
+        # If they did set it, retrieve it and reconstruct the expected domain
+        host = self._r.headers['Host']
+        parsed = urlparse(self._r.url)
+        # Reconstruct the URL as we expect it
+        return urlunparse([
+            parsed.scheme, host, parsed.path, parsed.params, parsed.query,
+            parsed.fragment
+        ])
+
+    def is_unverifiable(self):
+        return True
+
+    def has_header(self, name):
+        return name in self._r.headers or name in self._new_headers
+
+    def get_header(self, name, default=None):
+        return self._r.headers.get(name, self._new_headers.get(name, default))
+
+    def add_header(self, key, val):
+        """cookielib has no legitimate use for this method; add it back if you find one."""
+        raise NotImplementedError("Cookie headers should be added with add_unredirected_header()")
+
+    def add_unredirected_header(self, name, value):
+        self._new_headers[name] = value
+
+    def get_new_headers(self):
+        return self._new_headers
+
+    @property
+    def unverifiable(self):
+        return self.is_unverifiable()
+
+    @property
+    def origin_req_host(self):
+        return self.get_origin_req_host()
+
+    @property
+    def host(self):
+        return self.get_host()
+
+
+class MockResponse(object):
+    """Wraps a `httplib.HTTPMessage` to mimic a `urllib.addinfourl`.
+
+    ...what? Basically, expose the parsed HTTP headers from the server response
+    the way `cookielib` expects to see them.
+    """
+
+    def __init__(self, headers):
+        """Make a MockResponse for `cookielib` to read.
+
+        :param headers: a httplib.HTTPMessage or analogous carrying the headers
+        """
+        self._headers = headers
+
+    def info(self):
+        return self._headers
+
+    def getheaders(self, name):
+        self._headers.getheaders(name)
+
+
+def extract_cookies_to_jar(jar, request, response):
+    """Extract the cookies from the response into a CookieJar.
+
+    :param jar: cookielib.CookieJar (not necessarily a RequestsCookieJar)
+    :param request: our own requests.Request object
+    :param response: urllib3.HTTPResponse object
+    """
+    if not (hasattr(response, '_original_response') and
+            response._original_response):
+        return
+    # the _original_response field is the wrapped httplib.HTTPResponse object,
+    req = MockRequest(request)
+    # pull out the HTTPMessage with the headers and put it in the mock:
+    res = MockResponse(response._original_response.msg)
+    jar.extract_cookies(res, req)
+
+
+def get_cookie_header(jar, request):
+    """
+    Produce an appropriate Cookie header string to be sent with `request`, or None.
+
+    :rtype: str
+    """
+    r = MockRequest(request)
+    jar.add_cookie_header(r)
+    return r.get_new_headers().get('Cookie')
+
+
+def remove_cookie_by_name(cookiejar, name, domain=None, path=None):
+    """Unsets a cookie by name, by default over all domains and paths.
+
+    Wraps CookieJar.clear(), is O(n).
+    """
+    clearables = []
+    for cookie in cookiejar:
+        if cookie.name != name:
+            continue
+        if domain is not None and domain != cookie.domain:
+            continue
+        if path is not None and path != cookie.path:
+            continue
+        clearables.append((cookie.domain, cookie.path, cookie.name))
+
+    for domain, path, name in clearables:
+        cookiejar.clear(domain, path, name)
+
+
+class CookieConflictError(RuntimeError):
+    """There are two cookies that meet the criteria specified in the cookie jar.
+    Use .get and .set and include domain and path args in order to be more specific.
+    """
+
+
+class RequestsCookieJar(cookielib.CookieJar, collections.MutableMapping):
+    """Compatibility class; is a cookielib.CookieJar, but exposes a dict
+    interface.
+
+    This is the CookieJar we create by default for requests and sessions that
+    don't specify one, since some clients may expect response.cookies and
+    session.cookies to support dict operations.
+
+    Requests does not use the dict interface internally; it's just for
+    compatibility with external client code. All requests code should work
+    out of the box with externally provided instances of ``CookieJar``, e.g.
+    ``LWPCookieJar`` and ``FileCookieJar``.
+
+    Unlike a regular CookieJar, this class is pickleable.
+
+    .. warning:: dictionary operations that are normally O(1) may be O(n).
+    """
+
+    def get(self, name, default=None, domain=None, path=None):
+        """Dict-like get() that also supports optional domain and path args in
+        order to resolve naming collisions from using one cookie jar over
+        multiple domains.
+
+        .. warning:: operation is O(n), not O(1).
+        """
+        try:
+            return self._find_no_duplicates(name, domain, path)
+        except KeyError:
+            return default
+
+    def set(self, name, value, **kwargs):
+        """Dict-like set() that also supports optional domain and path args in
+        order to resolve naming collisions from using one cookie jar over
+        multiple domains.
+        """
+        # support client code that unsets cookies by assignment of a None value:
+        if value is None:
+            remove_cookie_by_name(self, name, domain=kwargs.get('domain'), path=kwargs.get('path'))
+            return
+
+        if isinstance(value, Morsel):
+            c = morsel_to_cookie(value)
+        else:
+            c = create_cookie(name, value, **kwargs)
+        self.set_cookie(c)
+        return c
+
+    def iterkeys(self):
+        """Dict-like iterkeys() that returns an iterator of names of cookies
+        from the jar.
+
+        .. seealso:: itervalues() and iteritems().
+        """
+        for cookie in iter(self):
+            yield cookie.name
+
+    def keys(self):
+        """Dict-like keys() that returns a list of names of cookies from the
+        jar.
+
+        .. seealso:: values() and items().
+        """
+        return list(self.iterkeys())
+
+    def itervalues(self):
+        """Dict-like itervalues() that returns an iterator of values of cookies
+        from the jar.
+
+        .. seealso:: iterkeys() and iteritems().
+        """
+        for cookie in iter(self):
+            yield cookie.value
+
+    def values(self):
+        """Dict-like values() that returns a list of values of cookies from the
+        jar.
+
+        .. seealso:: keys() and items().
+        """
+        return list(self.itervalues())
+
+    def iteritems(self):
+        """Dict-like iteritems() that returns an iterator of name-value tuples
+        from the jar.
+
+        .. seealso:: iterkeys() and itervalues().
+        """
+        for cookie in iter(self):
+            yield cookie.name, cookie.value
+
+    def items(self):
+        """Dict-like items() that returns a list of name-value tuples from the
+        jar. Allows client-code to call ``dict(RequestsCookieJar)`` and get a
+        vanilla python dict of key value pairs.
+
+        .. seealso:: keys() and values().
+        """
+        return list(self.iteritems())
+
+    def list_domains(self):
+        """Utility method to list all the domains in the jar."""
+        domains = []
+        for cookie in iter(self):
+            if cookie.domain not in domains:
+                domains.append(cookie.domain)
+        return domains
+
+    def list_paths(self):
+        """Utility method to list all the paths in the jar."""
+        paths = []
+        for cookie in iter(self):
+            if cookie.path not in paths:
+                paths.append(cookie.path)
+        return paths
+
+    def multiple_domains(self):
+        """Returns True if there are multiple domains in the jar.
+        Returns False otherwise.
+
+        :rtype: bool
+        """
+        domains = []
+        for cookie in iter(self):
+            if cookie.domain is not None and cookie.domain in domains:
+                return True
+            domains.append(cookie.domain)
+        return False  # there is only one domain in jar
+
+    def get_dict(self, domain=None, path=None):
+        """Takes as an argument an optional domain and path and returns a plain
+        old Python dict of name-value pairs of cookies that meet the
+        requirements.
+
+        :rtype: dict
+        """
+        dictionary = {}
+        for cookie in iter(self):
+            if (domain is None or cookie.domain == domain) and (path is None
+                                                or cookie.path == path):
+                dictionary[cookie.name] = cookie.value
+        return dictionary
+
+    def __contains__(self, name):
+        try:
+            return super(RequestsCookieJar, self).__contains__(name)
+        except CookieConflictError:
+            return True
+
+    def __getitem__(self, name):
+        """Dict-like __getitem__() for compatibility with client code. Throws
+        exception if there are more than one cookie with name. In that case,
+        use the more explicit get() method instead.
+
+        .. warning:: operation is O(n), not O(1).
+        """
+        return self._find_no_duplicates(name)
+
+    def __setitem__(self, name, value):
+        """Dict-like __setitem__ for compatibility with client code. Throws
+        exception if there is already a cookie of that name in the jar. In that
+        case, use the more explicit set() method instead.
+        """
+        self.set(name, value)
+
+    def __delitem__(self, name):
+        """Deletes a cookie given a name. Wraps ``cookielib.CookieJar``'s
+        ``remove_cookie_by_name()``.
+        """
+        remove_cookie_by_name(self, name)
+
+    def set_cookie(self, cookie, *args, **kwargs):
+        if hasattr(cookie.value, 'startswith') and cookie.value.startswith('"') and cookie.value.endswith('"'):
+            cookie.value = cookie.value.replace('\\"', '')
+        return super(RequestsCookieJar, self).set_cookie(cookie, *args, **kwargs)
+
+    def update(self, other):
+        """Updates this jar with cookies from another CookieJar or dict-like"""
+        if isinstance(other, cookielib.CookieJar):
+            for cookie in other:
+                self.set_cookie(copy.copy(cookie))
+        else:
+            super(RequestsCookieJar, self).update(other)
+
+    def _find(self, name, domain=None, path=None):
+        """Requests uses this method internally to get cookie values.
+
+        If there are conflicting cookies, _find arbitrarily chooses one.
+        See _find_no_duplicates if you want an exception thrown if there are
+        conflicting cookies.
+
+        :param name: a string containing name of cookie
+        :param domain: (optional) string containing domain of cookie
+        :param path: (optional) string containing path of cookie
+        :return: cookie.value
+        """
+        for cookie in iter(self):
+            if cookie.name == name:
+                if domain is None or cookie.domain == domain:
+                    if path is None or cookie.path == path:
+                        return cookie.value
+
+        raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
+
+    def _find_no_duplicates(self, name, domain=None, path=None):
+        """Both ``__get_item__`` and ``get`` call this function: it's never
+        used elsewhere in Requests.
+
+        :param name: a string containing name of cookie
+        :param domain: (optional) string containing domain of cookie
+        :param path: (optional) string containing path of cookie
+        :raises KeyError: if cookie is not found
+        :raises CookieConflictError: if there are multiple cookies
+            that match name and optionally domain and path
+        :return: cookie.value
+        """
+        toReturn = None
+        for cookie in iter(self):
+            if cookie.name == name:
+                if domain is None or cookie.domain == domain:
+                    if path is None or cookie.path == path:
+                        if toReturn is not None:  # if there are multiple cookies that meet passed in criteria
+                            raise CookieConflictError('There are multiple cookies with name, %r' % (name))
+                        toReturn = cookie.value  # we will eventually return this as long as no cookie conflict
+
+        if toReturn:
+            return toReturn
+        raise KeyError('name=%r, domain=%r, path=%r' % (name, domain, path))
+
+    def __getstate__(self):
+        """Unlike a normal CookieJar, this class is pickleable."""
+        state = self.__dict__.copy()
+        # remove the unpickleable RLock object
+        state.pop('_cookies_lock')
+        return state
+
+    def __setstate__(self, state):
+        """Unlike a normal CookieJar, this class is pickleable."""
+        self.__dict__.update(state)
+        if '_cookies_lock' not in self.__dict__:
+            self._cookies_lock = threading.RLock()
+
+    def copy(self):
+        """Return a copy of this RequestsCookieJar."""
+        new_cj = RequestsCookieJar()
+        new_cj.update(self)
+        return new_cj
+
+
+def _copy_cookie_jar(jar):
+    if jar is None:
+        return None
+
+    if hasattr(jar, 'copy'):
+        # We're dealing with an instance of RequestsCookieJar
+        return jar.copy()
+    # We're dealing with a generic CookieJar instance
+    new_jar = copy.copy(jar)
+    new_jar.clear()
+    for cookie in jar:
+        new_jar.set_cookie(copy.copy(cookie))
+    return new_jar
+
+
+def create_cookie(name, value, **kwargs):
+    """Make a cookie from underspecified parameters.
+
+    By default, the pair of `name` and `value` will be set for the domain ''
+    and sent on every request (this is sometimes called a "supercookie").
+    """
+    result = dict(
+        version=0,
+        name=name,
+        value=value,
+        port=None,
+        domain='',
+        path='/',
+        secure=False,
+        expires=None,
+        discard=True,
+        comment=None,
+        comment_url=None,
+        rest={'HttpOnly': None},
+        rfc2109=False,)
+
+    badargs = set(kwargs) - set(result)
+    if badargs:
+        err = 'create_cookie() got unexpected keyword arguments: %s'
+        raise TypeError(err % list(badargs))
+
+    result.update(kwargs)
+    result['port_specified'] = bool(result['port'])
+    result['domain_specified'] = bool(result['domain'])
+    result['domain_initial_dot'] = result['domain'].startswith('.')
+    result['path_specified'] = bool(result['path'])
+
+    return cookielib.Cookie(**result)
+
+
+def morsel_to_cookie(morsel):
+    """Convert a Morsel object into a Cookie containing the one k/v pair."""
+
+    expires = None
+    if morsel['max-age']:
+        try:
+            expires = int(time.time() + int(morsel['max-age']))
+        except ValueError:
+            raise TypeError('max-age: %s must be integer' % morsel['max-age'])
+    elif morsel['expires']:
+        time_template = '%a, %d-%b-%Y %H:%M:%S GMT'
+        expires = calendar.timegm(
+            time.strptime(morsel['expires'], time_template)
+        )
+    return create_cookie(
+        comment=morsel['comment'],
+        comment_url=bool(morsel['comment']),
+        discard=False,
+        domain=morsel['domain'],
+        expires=expires,
+        name=morsel.key,
+        path=morsel['path'],
+        port=None,
+        rest={'HttpOnly': morsel['httponly']},
+        rfc2109=False,
+        secure=bool(morsel['secure']),
+        value=morsel.value,
+        version=morsel['version'] or 0,
+    )
+
+
+def cookiejar_from_dict(cookie_dict, cookiejar=None, overwrite=True):
+    """Returns a CookieJar from a key/value dictionary.
+
+    :param cookie_dict: Dict of key/values to insert into CookieJar.
+    :param cookiejar: (optional) A cookiejar to add the cookies to.
+    :param overwrite: (optional) If False, will not replace cookies
+        already in the jar with new ones.
+    """
+    if cookiejar is None:
+        cookiejar = RequestsCookieJar()
+
+    if cookie_dict is not None:
+        names_from_jar = [cookie.name for cookie in cookiejar]
+        for name in cookie_dict:
+            if overwrite or (name not in names_from_jar):
+                cookiejar.set_cookie(create_cookie(name, cookie_dict[name]))
+
+    return cookiejar
+
+
+def merge_cookies(cookiejar, cookies):
+    """Add cookies to cookiejar and returns a merged CookieJar.
+
+    :param cookiejar: CookieJar object to add the cookies to.
+    :param cookies: Dictionary or CookieJar object to be added.
+    """
+    if not isinstance(cookiejar, cookielib.CookieJar):
+        raise ValueError('You can only merge into CookieJar')
+
+    if isinstance(cookies, dict):
+        cookiejar = cookiejar_from_dict(
+            cookies, cookiejar=cookiejar, overwrite=False)
+    elif isinstance(cookies, cookielib.CookieJar):
+        try:
+            cookiejar.update(cookies)
+        except AttributeError:
+            for cookie_in_jar in cookies:
+                cookiejar.set_cookie(cookie_in_jar)
+
+    return cookiejar
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py
new file mode 100644
index 0000000..b89e0cc
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/exceptions.py
@@ -0,0 +1,114 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.exceptions
+~~~~~~~~~~~~~~~~~~~
+
+This module contains the set of Requests' exceptions.
+"""
+from .packages.urllib3.exceptions import HTTPError as BaseHTTPError
+
+
+class RequestException(IOError):
+    """There was an ambiguous exception that occurred while handling your
+    request.
+    """
+
+    def __init__(self, *args, **kwargs):
+        """Initialize RequestException with `request` and `response` objects."""
+        response = kwargs.pop('response', None)
+        self.response = response
+        self.request = kwargs.pop('request', None)
+        if (response is not None and not self.request and
+                hasattr(response, 'request')):
+            self.request = self.response.request
+        super(RequestException, self).__init__(*args, **kwargs)
+
+
+class HTTPError(RequestException):
+    """An HTTP error occurred."""
+
+
+class ConnectionError(RequestException):
+    """A Connection error occurred."""
+
+
+class ProxyError(ConnectionError):
+    """A proxy error occurred."""
+
+
+class SSLError(ConnectionError):
+    """An SSL error occurred."""
+
+
+class Timeout(RequestException):
+    """The request timed out.
+
+    Catching this error will catch both
+    :exc:`~requests.exceptions.ConnectTimeout` and
+    :exc:`~requests.exceptions.ReadTimeout` errors.
+    """
+
+
+class ConnectTimeout(ConnectionError, Timeout):
+    """The request timed out while trying to connect to the remote server.
+
+    Requests that produced this error are safe to retry.
+    """
+
+
+class ReadTimeout(Timeout):
+    """The server did not send any data in the allotted amount of time."""
+
+
+class URLRequired(RequestException):
+    """A valid URL is required to make a request."""
+
+
+class TooManyRedirects(RequestException):
+    """Too many redirects."""
+
+
+class MissingSchema(RequestException, ValueError):
+    """The URL schema (e.g. http or https) is missing."""
+
+
+class InvalidSchema(RequestException, ValueError):
+    """See defaults.py for valid schemas."""
+
+
+class InvalidURL(RequestException, ValueError):
+    """The URL provided was somehow invalid."""
+
+
+class InvalidHeader(RequestException, ValueError):
+    """The header value provided was somehow invalid."""
+
+
+class ChunkedEncodingError(RequestException):
+    """The server declared chunked encoding but sent an invalid chunk."""
+
+
+class ContentDecodingError(RequestException, BaseHTTPError):
+    """Failed to decode response content"""
+
+
+class StreamConsumedError(RequestException, TypeError):
+    """The content for this response was already consumed"""
+
+
+class RetryError(RequestException):
+    """Custom retries logic failed"""
+
+
+# Warnings
+
+
+class RequestsWarning(Warning):
+    """Base warning for Requests."""
+    pass
+
+
+class FileModeWarning(RequestsWarning, DeprecationWarning):
+    """A file was opened in text mode, but Requests determined its binary length."""
+    pass
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py
new file mode 100644
index 0000000..32b32de
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/hooks.py
@@ -0,0 +1,34 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.hooks
+~~~~~~~~~~~~~~
+
+This module provides the capabilities for the Requests hooks system.
+
+Available hooks:
+
+``response``:
+    The response generated from a Request.
+"""
+HOOKS = ['response']
+
+
+def default_hooks():
+    return dict((event, []) for event in HOOKS)
+
+# TODO: response is the only one
+
+
+def dispatch_hook(key, hooks, hook_data, **kwargs):
+    """Dispatches a hook dictionary on a given piece of data."""
+    hooks = hooks or dict()
+    hooks = hooks.get(key)
+    if hooks:
+        if hasattr(hooks, '__call__'):
+            hooks = [hooks]
+        for hook in hooks:
+            _hook_data = hook(hook_data, **kwargs)
+            if _hook_data is not None:
+                hook_data = _hook_data
+    return hook_data
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/models.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/models.py
new file mode 100644
index 0000000..11434ef
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/models.py
@@ -0,0 +1,873 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.models
+~~~~~~~~~~~~~~~
+
+This module contains the primary objects that power Requests.
+"""
+
+import collections
+import datetime
+
+from io import BytesIO, UnsupportedOperation
+from .hooks import default_hooks
+from .structures import CaseInsensitiveDict
+
+from .auth import HTTPBasicAuth
+from .cookies import cookiejar_from_dict, get_cookie_header, _copy_cookie_jar
+from .packages.urllib3.fields import RequestField
+from .packages.urllib3.filepost import encode_multipart_formdata
+from .packages.urllib3.util import parse_url
+from .packages.urllib3.exceptions import (
+    DecodeError, ReadTimeoutError, ProtocolError, LocationParseError)
+from .exceptions import (
+    HTTPError, MissingSchema, InvalidURL, ChunkedEncodingError,
+    ContentDecodingError, ConnectionError, StreamConsumedError)
+from .utils import (
+    guess_filename, get_auth_from_url, requote_uri,
+    stream_decode_response_unicode, to_key_val_list, parse_header_links,
+    iter_slices, guess_json_utf, super_len, to_native_string,
+    check_header_validity)
+from .compat import (
+    cookielib, urlunparse, urlsplit, urlencode, str, bytes, StringIO,
+    is_py2, chardet, builtin_str, basestring)
+from .compat import json as complexjson
+from .status_codes import codes
+
+#: The set of HTTP status codes that indicate an automatically
+#: processable redirect.
+REDIRECT_STATI = (
+    codes.moved,               # 301
+    codes.found,               # 302
+    codes.other,               # 303
+    codes.temporary_redirect,  # 307
+    codes.permanent_redirect,  # 308
+)
+
+DEFAULT_REDIRECT_LIMIT = 30
+CONTENT_CHUNK_SIZE = 10 * 1024
+ITER_CHUNK_SIZE = 512
+
+
+class RequestEncodingMixin(object):
+    @property
+    def path_url(self):
+        """Build the path URL to use."""
+
+        url = []
+
+        p = urlsplit(self.url)
+
+        path = p.path
+        if not path:
+            path = '/'
+
+        url.append(path)
+
+        query = p.query
+        if query:
+            url.append('?')
+            url.append(query)
+
+        return ''.join(url)
+
+    @staticmethod
+    def _encode_params(data):
+        """Encode parameters in a piece of data.
+
+        Will successfully encode parameters when passed as a dict or a list of
+        2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
+        if parameters are supplied as a dict.
+        """
+
+        if isinstance(data, (str, bytes)):
+            return data
+        elif hasattr(data, 'read'):
+            return data
+        elif hasattr(data, '__iter__'):
+            result = []
+            for k, vs in to_key_val_list(data):
+                if isinstance(vs, basestring) or not hasattr(vs, '__iter__'):
+                    vs = [vs]
+                for v in vs:
+                    if v is not None:
+                        result.append(
+                            (k.encode('utf-8') if isinstance(k, str) else k,
+                             v.encode('utf-8') if isinstance(v, str) else v))
+            return urlencode(result, doseq=True)
+        else:
+            return data
+
+    @staticmethod
+    def _encode_files(files, data):
+        """Build the body for a multipart/form-data request.
+
+        Will successfully encode files when passed as a dict or a list of
+        tuples. Order is retained if data is a list of tuples but arbitrary
+        if parameters are supplied as a dict.
+        The tuples may be 2-tuples (filename, fileobj), 3-tuples (filename, fileobj, contentype)
+        or 4-tuples (filename, fileobj, contentype, custom_headers).
+        """
+        if (not files):
+            raise ValueError("Files must be provided.")
+        elif isinstance(data, basestring):
+            raise ValueError("Data must not be a string.")
+
+        new_fields = []
+        fields = to_key_val_list(data or {})
+        files = to_key_val_list(files or {})
+
+        for field, val in fields:
+            if isinstance(val, basestring) or not hasattr(val, '__iter__'):
+                val = [val]
+            for v in val:
+                if v is not None:
+                    # Don't call str() on bytestrings: in Py3 it all goes wrong.
+                    if not isinstance(v, bytes):
+                        v = str(v)
+
+                    new_fields.append(
+                        (field.decode('utf-8') if isinstance(field, bytes) else field,
+                         v.encode('utf-8') if isinstance(v, str) else v))
+
+        for (k, v) in files:
+            # support for explicit filename
+            ft = None
+            fh = None
+            if isinstance(v, (tuple, list)):
+                if len(v) == 2:
+                    fn, fp = v
+                elif len(v) == 3:
+                    fn, fp, ft = v
+                else:
+                    fn, fp, ft, fh = v
+            else:
+                fn = guess_filename(v) or k
+                fp = v
+
+            if isinstance(fp, (str, bytes, bytearray)):
+                fdata = fp
+            else:
+                fdata = fp.read()
+
+            rf = RequestField(name=k, data=fdata, filename=fn, headers=fh)
+            rf.make_multipart(content_type=ft)
+            new_fields.append(rf)
+
+        body, content_type = encode_multipart_formdata(new_fields)
+
+        return body, content_type
+
+
+class RequestHooksMixin(object):
+    def register_hook(self, event, hook):
+        """Properly register a hook."""
+
+        if event not in self.hooks:
+            raise ValueError('Unsupported event specified, with event name "%s"' % (event))
+
+        if isinstance(hook, collections.Callable):
+            self.hooks[event].append(hook)
+        elif hasattr(hook, '__iter__'):
+            self.hooks[event].extend(h for h in hook if isinstance(h, collections.Callable))
+
+    def deregister_hook(self, event, hook):
+        """Deregister a previously registered hook.
+        Returns True if the hook existed, False if not.
+        """
+
+        try:
+            self.hooks[event].remove(hook)
+            return True
+        except ValueError:
+            return False
+
+
+class Request(RequestHooksMixin):
+    """A user-created :class:`Request <Request>` object.
+
+    Used to prepare a :class:`PreparedRequest <PreparedRequest>`, which is sent to the server.
+
+    :param method: HTTP method to use.
+    :param url: URL to send.
+    :param headers: dictionary of headers to send.
+    :param files: dictionary of {filename: fileobject} files to multipart upload.
+    :param data: the body to attach to the request. If a dictionary is provided, form-encoding will take place.
+    :param json: json for the body to attach to the request (if files or data is not specified).
+    :param params: dictionary of URL parameters to append to the URL.
+    :param auth: Auth handler or (user, pass) tuple.
+    :param cookies: dictionary or CookieJar of cookies to attach to this request.
+    :param hooks: dictionary of callback hooks, for internal usage.
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.Request('GET', 'http://httpbin.org/get')
+      >>> req.prepare()
+      <PreparedRequest [GET]>
+    """
+
+    def __init__(self, method=None, url=None, headers=None, files=None,
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
+
+        # Default empty dicts for dict params.
+        data = [] if data is None else data
+        files = [] if files is None else files
+        headers = {} if headers is None else headers
+        params = {} if params is None else params
+        hooks = {} if hooks is None else hooks
+
+        self.hooks = default_hooks()
+        for (k, v) in list(hooks.items()):
+            self.register_hook(event=k, hook=v)
+
+        self.method = method
+        self.url = url
+        self.headers = headers
+        self.files = files
+        self.data = data
+        self.json = json
+        self.params = params
+        self.auth = auth
+        self.cookies = cookies
+
+    def __repr__(self):
+        return '<Request [%s]>' % (self.method)
+
+    def prepare(self):
+        """Constructs a :class:`PreparedRequest <PreparedRequest>` for transmission and returns it."""
+        p = PreparedRequest()
+        p.prepare(
+            method=self.method,
+            url=self.url,
+            headers=self.headers,
+            files=self.files,
+            data=self.data,
+            json=self.json,
+            params=self.params,
+            auth=self.auth,
+            cookies=self.cookies,
+            hooks=self.hooks,
+        )
+        return p
+
+
+class PreparedRequest(RequestEncodingMixin, RequestHooksMixin):
+    """The fully mutable :class:`PreparedRequest <PreparedRequest>` object,
+    containing the exact bytes that will be sent to the server.
+
+    Generated from either a :class:`Request <Request>` object or manually.
+
+    Usage::
+
+      >>> import requests
+      >>> req = requests.Request('GET', 'http://httpbin.org/get')
+      >>> r = req.prepare()
+      <PreparedRequest [GET]>
+
+      >>> s = requests.Session()
+      >>> s.send(r)
+      <Response [200]>
+    """
+
+    def __init__(self):
+        #: HTTP verb to send to the server.
+        self.method = None
+        #: HTTP URL to send the request to.
+        self.url = None
+        #: dictionary of HTTP headers.
+        self.headers = None
+        # The `CookieJar` used to create the Cookie header will be stored here
+        # after prepare_cookies is called
+        self._cookies = None
+        #: request body to send to the server.
+        self.body = None
+        #: dictionary of callback hooks, for internal usage.
+        self.hooks = default_hooks()
+
+    def prepare(self, method=None, url=None, headers=None, files=None,
+        data=None, params=None, auth=None, cookies=None, hooks=None, json=None):
+        """Prepares the entire request with the given parameters."""
+
+        self.prepare_method(method)
+        self.prepare_url(url, params)
+        self.prepare_headers(headers)
+        self.prepare_cookies(cookies)
+        self.prepare_body(data, files, json)
+        self.prepare_auth(auth, url)
+
+        # Note that prepare_auth must be last to enable authentication schemes
+        # such as OAuth to work on a fully prepared request.
+
+        # This MUST go after prepare_auth. Authenticators could add a hook
+        self.prepare_hooks(hooks)
+
+    def __repr__(self):
+        return '<PreparedRequest [%s]>' % (self.method)
+
+    def copy(self):
+        p = PreparedRequest()
+        p.method = self.method
+        p.url = self.url
+        p.headers = self.headers.copy() if self.headers is not None else None
+        p._cookies = _copy_cookie_jar(self._cookies)
+        p.body = self.body
+        p.hooks = self.hooks
+        return p
+
+    def prepare_method(self, method):
+        """Prepares the given HTTP method."""
+        self.method = method
+        if self.method is not None:
+            self.method = to_native_string(self.method.upper())
+
+    def prepare_url(self, url, params):
+        """Prepares the given HTTP URL."""
+        #: Accept objects that have string representations.
+        #: We're unable to blindly call unicode/str functions
+        #: as this will include the bytestring indicator (b'')
+        #: on python 3.x.
+        #: https://github.com/kennethreitz/requests/pull/2238
+        if isinstance(url, bytes):
+            url = url.decode('utf8')
+        else:
+            url = unicode(url) if is_py2 else str(url)
+
+        # Don't do any URL preparation for non-HTTP schemes like `mailto`,
+        # `data` etc to work around exceptions from `url_parse`, which
+        # handles RFC 3986 only.
+        if ':' in url and not url.lower().startswith('http'):
+            self.url = url
+            return
+
+        # Support for unicode domain names and paths.
+        try:
+            scheme, auth, host, port, path, query, fragment = parse_url(url)
+        except LocationParseError as e:
+            raise InvalidURL(*e.args)
+
+        if not scheme:
+            error = ("Invalid URL {0!r}: No schema supplied. Perhaps you meant http://{0}?")
+            error = error.format(to_native_string(url, 'utf8'))
+
+            raise MissingSchema(error)
+
+        if not host:
+            raise InvalidURL("Invalid URL %r: No host supplied" % url)
+
+        # Only want to apply IDNA to the hostname
+        try:
+            host = host.encode('idna').decode('utf-8')
+        except UnicodeError:
+            raise InvalidURL('URL has an invalid label.')
+
+        # Carefully reconstruct the network location
+        netloc = auth or ''
+        if netloc:
+            netloc += '@'
+        netloc += host
+        if port:
+            netloc += ':' + str(port)
+
+        # Bare domains aren't valid URLs.
+        if not path:
+            path = '/'
+
+        if is_py2:
+            if isinstance(scheme, str):
+                scheme = scheme.encode('utf-8')
+            if isinstance(netloc, str):
+                netloc = netloc.encode('utf-8')
+            if isinstance(path, str):
+                path = path.encode('utf-8')
+            if isinstance(query, str):
+                query = query.encode('utf-8')
+            if isinstance(fragment, str):
+                fragment = fragment.encode('utf-8')
+
+        if isinstance(params, (str, bytes)):
+            params = to_native_string(params)
+
+        enc_params = self._encode_params(params)
+        if enc_params:
+            if query:
+                query = '%s&%s' % (query, enc_params)
+            else:
+                query = enc_params
+
+        url = requote_uri(urlunparse([scheme, netloc, path, None, query, fragment]))
+        self.url = url
+
+    def prepare_headers(self, headers):
+        """Prepares the given HTTP headers."""
+
+        self.headers = CaseInsensitiveDict()
+        if headers:
+            for header in headers.items():
+                # Raise exception on invalid header value.
+                check_header_validity(header)
+                name, value = header
+                self.headers[to_native_string(name)] = value
+
+    def prepare_body(self, data, files, json=None):
+        """Prepares the given HTTP body data."""
+
+        # Check if file, fo, generator, iterator.
+        # If not, run through normal process.
+
+        # Nottin' on you.
+        body = None
+        content_type = None
+        length = None
+
+        if not data and json is not None:
+            # urllib3 requires a bytes-like body. Python 2's json.dumps
+            # provides this natively, but Python 3 gives a Unicode string.
+            content_type = 'application/json'
+            body = complexjson.dumps(json)
+            if not isinstance(body, bytes):
+                body = body.encode('utf-8')
+
+        is_stream = all([
+            hasattr(data, '__iter__'),
+            not isinstance(data, (basestring, list, tuple, dict))
+        ])
+
+        try:
+            length = super_len(data)
+        except (TypeError, AttributeError, UnsupportedOperation):
+            length = None
+
+        if is_stream:
+            body = data
+
+            if files:
+                raise NotImplementedError('Streamed bodies and files are mutually exclusive.')
+
+            if length:
+                self.headers['Content-Length'] = builtin_str(length)
+            else:
+                self.headers['Transfer-Encoding'] = 'chunked'
+        else:
+            # Multi-part file uploads.
+            if files:
+                (body, content_type) = self._encode_files(files, data)
+            else:
+                if data:
+                    body = self._encode_params(data)
+                    if isinstance(data, basestring) or hasattr(data, 'read'):
+                        content_type = None
+                    else:
+                        content_type = 'application/x-www-form-urlencoded'
+
+            self.prepare_content_length(body)
+
+            # Add content-type if it wasn't explicitly provided.
+            if content_type and ('content-type' not in self.headers):
+                self.headers['Content-Type'] = content_type
+
+        self.body = body
+
+    def prepare_content_length(self, body):
+        if hasattr(body, 'seek') and hasattr(body, 'tell'):
+            curr_pos = body.tell()
+            body.seek(0, 2)
+            end_pos = body.tell()
+            self.headers['Content-Length'] = builtin_str(max(0, end_pos - curr_pos))
+            body.seek(curr_pos, 0)
+        elif body is not None:
+            l = super_len(body)
+            if l:
+                self.headers['Content-Length'] = builtin_str(l)
+        elif (self.method not in ('GET', 'HEAD')) and (self.headers.get('Content-Length') is None):
+            self.headers['Content-Length'] = '0'
+
+    def prepare_auth(self, auth, url=''):
+        """Prepares the given HTTP auth data."""
+
+        # If no Auth is explicitly provided, extract it from the URL first.
+        if auth is None:
+            url_auth = get_auth_from_url(self.url)
+            auth = url_auth if any(url_auth) else None
+
+        if auth:
+            if isinstance(auth, tuple) and len(auth) == 2:
+                # special-case basic HTTP auth
+                auth = HTTPBasicAuth(*auth)
+
+            # Allow auth to make its changes.
+            r = auth(self)
+
+            # Update self to reflect the auth changes.
+            self.__dict__.update(r.__dict__)
+
+            # Recompute Content-Length
+            self.prepare_content_length(self.body)
+
+    def prepare_cookies(self, cookies):
+        """Prepares the given HTTP cookie data.
+
+        This function eventually generates a ``Cookie`` header from the
+        given cookies using cookielib. Due to cookielib's design, the header
+        will not be regenerated if it already exists, meaning this function
+        can only be called once for the life of the
+        :class:`PreparedRequest <PreparedRequest>` object. Any subsequent calls
+        to ``prepare_cookies`` will have no actual effect, unless the "Cookie"
+        header is removed beforehand.
+        """
+        if isinstance(cookies, cookielib.CookieJar):
+            self._cookies = cookies
+        else:
+            self._cookies = cookiejar_from_dict(cookies)
+
+        cookie_header = get_cookie_header(self._cookies, self)
+        if cookie_header is not None:
+            self.headers['Cookie'] = cookie_header
+
+    def prepare_hooks(self, hooks):
+        """Prepares the given hooks."""
+        # hooks can be passed as None to the prepare method and to this
+        # method. To prevent iterating over None, simply use an empty list
+        # if hooks is False-y
+        hooks = hooks or []
+        for event in hooks:
+            self.register_hook(event, hooks[event])
+
+
+class Response(object):
+    """The :class:`Response <Response>` object, which contains a
+    server's response to an HTTP request.
+    """
+
+    __attrs__ = [
+        '_content', 'status_code', 'headers', 'url', 'history',
+        'encoding', 'reason', 'cookies', 'elapsed', 'request'
+    ]
+
+    def __init__(self):
+        super(Response, self).__init__()
+
+        self._content = False
+        self._content_consumed = False
+
+        #: Integer Code of responded HTTP Status, e.g. 404 or 200.
+        self.status_code = None
+
+        #: Case-insensitive Dictionary of Response Headers.
+        #: For example, ``headers['content-encoding']`` will return the
+        #: value of a ``'Content-Encoding'`` response header.
+        self.headers = CaseInsensitiveDict()
+
+        #: File-like object representation of response (for advanced usage).
+        #: Use of ``raw`` requires that ``stream=True`` be set on the request.
+        # This requirement does not apply for use internally to Requests.
+        self.raw = None
+
+        #: Final URL location of Response.
+        self.url = None
+
+        #: Encoding to decode with when accessing r.text.
+        self.encoding = None
+
+        #: A list of :class:`Response <Response>` objects from
+        #: the history of the Request. Any redirect responses will end
+        #: up here. The list is sorted from the oldest to the most recent request.
+        self.history = []
+
+        #: Textual reason of responded HTTP Status, e.g. "Not Found" or "OK".
+        self.reason = None
+
+        #: A CookieJar of Cookies the server sent back.
+        self.cookies = cookiejar_from_dict({})
+
+        #: The amount of time elapsed between sending the request
+        #: and the arrival of the response (as a timedelta).
+        #: This property specifically measures the time taken between sending
+        #: the first byte of the request and finishing parsing the headers. It
+        #: is therefore unaffected by consuming the response content or the
+        #: value of the ``stream`` keyword argument.
+        self.elapsed = datetime.timedelta(0)
+
+        #: The :class:`PreparedRequest <PreparedRequest>` object to which this
+        #: is a response.
+        self.request = None
+
+    def __getstate__(self):
+        # Consume everything; accessing the content attribute makes
+        # sure the content has been fully read.
+        if not self._content_consumed:
+            self.content
+
+        return dict(
+            (attr, getattr(self, attr, None))
+            for attr in self.__attrs__
+        )
+
+    def __setstate__(self, state):
+        for name, value in state.items():
+            setattr(self, name, value)
+
+        # pickled objects do not have .raw
+        setattr(self, '_content_consumed', True)
+        setattr(self, 'raw', None)
+
+    def __repr__(self):
+        return '<Response [%s]>' % (self.status_code)
+
+    def __bool__(self):
+        """Returns true if :attr:`status_code` is 'OK'."""
+        return self.ok
+
+    def __nonzero__(self):
+        """Returns true if :attr:`status_code` is 'OK'."""
+        return self.ok
+
+    def __iter__(self):
+        """Allows you to use a response as an iterator."""
+        return self.iter_content(128)
+
+    @property
+    def ok(self):
+        try:
+            self.raise_for_status()
+        except HTTPError:
+            return False
+        return True
+
+    @property
+    def is_redirect(self):
+        """True if this Response is a well-formed HTTP redirect that could have
+        been processed automatically (by :meth:`Session.resolve_redirects`).
+        """
+        return ('location' in self.headers and self.status_code in REDIRECT_STATI)
+
+    @property
+    def is_permanent_redirect(self):
+        """True if this Response one of the permanent versions of redirect"""
+        return ('location' in self.headers and self.status_code in (codes.moved_permanently, codes.permanent_redirect))
+
+    @property
+    def apparent_encoding(self):
+        """The apparent encoding, provided by the chardet library"""
+        return chardet.detect(self.content)['encoding']
+
+    def iter_content(self, chunk_size=1, decode_unicode=False):
+        """Iterates over the response data.  When stream=True is set on the
+        request, this avoids reading the content at once into memory for
+        large responses.  The chunk size is the number of bytes it should
+        read into memory.  This is not necessarily the length of each item
+        returned as decoding can take place.
+
+        chunk_size must be of type int or None. A value of None will
+        function differently depending on the value of `stream`.
+        stream=True will read data as it arrives in whatever size the
+        chunks are received. If stream=False, data is returned as
+        a single chunk.
+
+        If decode_unicode is True, content will be decoded using the best
+        available encoding based on the response.
+        """
+
+        def generate():
+            # Special case for urllib3.
+            if hasattr(self.raw, 'stream'):
+                try:
+                    for chunk in self.raw.stream(chunk_size, decode_content=True):
+                        yield chunk
+                except ProtocolError as e:
+                    raise ChunkedEncodingError(e)
+                except DecodeError as e:
+                    raise ContentDecodingError(e)
+                except ReadTimeoutError as e:
+                    raise ConnectionError(e)
+            else:
+                # Standard file-like object.
+                while True:
+                    chunk = self.raw.read(chunk_size)
+                    if not chunk:
+                        break
+                    yield chunk
+
+            self._content_consumed = True
+
+        if self._content_consumed and isinstance(self._content, bool):
+            raise StreamConsumedError()
+        elif chunk_size is not None and not isinstance(chunk_size, int):
+            raise TypeError("chunk_size must be an int, it is instead a %s." % type(chunk_size))
+        # simulate reading small chunks of the content
+        reused_chunks = iter_slices(self._content, chunk_size)
+
+        stream_chunks = generate()
+
+        chunks = reused_chunks if self._content_consumed else stream_chunks
+
+        if decode_unicode:
+            chunks = stream_decode_response_unicode(chunks, self)
+
+        return chunks
+
+    def iter_lines(self, chunk_size=ITER_CHUNK_SIZE, decode_unicode=None, delimiter=None):
+        """Iterates over the response data, one line at a time.  When
+        stream=True is set on the request, this avoids reading the
+        content at once into memory for large responses.
+
+        .. note:: This method is not reentrant safe.
+        """
+
+        pending = None
+
+        for chunk in self.iter_content(chunk_size=chunk_size, decode_unicode=decode_unicode):
+
+            if pending is not None:
+                chunk = pending + chunk
+
+            if delimiter:
+                lines = chunk.split(delimiter)
+            else:
+                lines = chunk.splitlines()
+
+            if lines and lines[-1] and chunk and lines[-1][-1] == chunk[-1]:
+                pending = lines.pop()
+            else:
+                pending = None
+
+            for line in lines:
+                yield line
+
+        if pending is not None:
+            yield pending
+
+    @property
+    def content(self):
+        """Content of the response, in bytes."""
+
+        if self._content is False:
+            # Read the contents.
+            try:
+                if self._content_consumed:
+                    raise RuntimeError(
+                        'The content for this response was already consumed')
+
+                if self.status_code == 0:
+                    self._content = None
+                else:
+                    self._content = bytes().join(self.iter_content(CONTENT_CHUNK_SIZE)) or bytes()
+
+            except AttributeError:
+                self._content = None
+
+        self._content_consumed = True
+        # don't need to release the connection; that's been handled by urllib3
+        # since we exhausted the data.
+        return self._content
+
+    @property
+    def text(self):
+        """Content of the response, in unicode.
+
+        If Response.encoding is None, encoding will be guessed using
+        ``chardet``.
+
+        The encoding of the response content is determined based solely on HTTP
+        headers, following RFC 2616 to the letter. If you can take advantage of
+        non-HTTP knowledge to make a better guess at the encoding, you should
+        set ``r.encoding`` appropriately before accessing this property.
+        """
+
+        # Try charset from content-type
+        content = None
+        encoding = self.encoding
+
+        if not self.content:
+            return str('')
+
+        # Fallback to auto-detected encoding.
+        if self.encoding is None:
+            encoding = self.apparent_encoding
+
+        # Decode unicode from given encoding.
+        try:
+            content = str(self.content, encoding, errors='replace')
+        except (LookupError, TypeError):
+            # A LookupError is raised if the encoding was not found which could
+            # indicate a misspelling or similar mistake.
+            #
+            # A TypeError can be raised if encoding is None
+            #
+            # So we try blindly encoding.
+            content = str(self.content, errors='replace')
+
+        return content
+
+    def json(self, **kwargs):
+        """Returns the json-encoded content of a response, if any.
+
+        :param \*\*kwargs: Optional arguments that ``json.loads`` takes.
+        """
+
+        if not self.encoding and self.content and len(self.content) > 3:
+            # No encoding set. JSON RFC 4627 section 3 states we should expect
+            # UTF-8, -16 or -32. Detect which one to use; If the detection or
+            # decoding fails, fall back to `self.text` (using chardet to make
+            # a best guess).
+            encoding = guess_json_utf(self.content)
+            if encoding is not None:
+                try:
+                    return complexjson.loads(
+                        self.content.decode(encoding), **kwargs
+                    )
+                except UnicodeDecodeError:
+                    # Wrong UTF codec detected; usually because it's not UTF-8
+                    # but some other 8-bit codec.  This is an RFC violation,
+                    # and the server didn't bother to tell us what codec *was*
+                    # used.
+                    pass
+        return complexjson.loads(self.text, **kwargs)
+
+    @property
+    def links(self):
+        """Returns the parsed header links of the response, if any."""
+
+        header = self.headers.get('link')
+
+        # l = MultiDict()
+        l = {}
+
+        if header:
+            links = parse_header_links(header)
+
+            for link in links:
+                key = link.get('rel') or link.get('url')
+                l[key] = link
+
+        return l
+
+    def raise_for_status(self):
+        """Raises stored :class:`HTTPError`, if one occurred."""
+
+        http_error_msg = ''
+        if isinstance(self.reason, bytes):
+            reason = self.reason.decode('utf-8', 'ignore')
+        else:
+            reason = self.reason
+
+        if 400 <= self.status_code < 500:
+            http_error_msg = u'%s Client Error: %s for url: %s' % (self.status_code, reason, self.url)
+
+        elif 500 <= self.status_code < 600:
+            http_error_msg = u'%s Server Error: %s for url: %s' % (self.status_code, reason, self.url)
+
+        if http_error_msg:
+            raise HTTPError(http_error_msg, response=self)
+
+    def close(self):
+        """Releases the connection back to the pool. Once this method has been
+        called the underlying ``raw`` object must not be accessed again.
+
+        *Note: Should not normally need to be called explicitly.*
+        """
+        if not self._content_consumed:
+            self.raw.close()
+
+        return self.raw.release_conn()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py
new file mode 100644
index 0000000..971c2ad
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/__init__.py
@@ -0,0 +1,36 @@
+'''
+Debian and other distributions "unbundle" requests' vendored dependencies, and
+rewrite all imports to use the global versions of ``urllib3`` and ``chardet``.
+The problem with this is that not only requests itself imports those
+dependencies, but third-party code outside of the distros' control too.
+
+In reaction to these problems, the distro maintainers replaced
+``requests.packages`` with a magical "stub module" that imports the correct
+modules. The implementations were varying in quality and all had severe
+problems. For example, a symlink (or hardlink) that links the correct modules
+into place introduces problems regarding object identity, since you now have
+two modules in `sys.modules` with the same API, but different identities::
+
+    requests.packages.urllib3 is not urllib3
+
+With version ``2.5.2``, requests started to maintain its own stub, so that
+distro-specific breakage would be reduced to a minimum, even though the whole
+issue is not requests' fault in the first place. See
+https://github.com/kennethreitz/requests/pull/2375 for the corresponding pull
+request.
+'''
+
+from __future__ import absolute_import
+import sys
+
+try:
+    from . import urllib3
+except ImportError:
+    import urllib3
+    sys.modules['%s.urllib3' % __name__] = urllib3
+
+try:
+    from . import chardet
+except ImportError:
+    import chardet
+    sys.modules['%s.chardet' % __name__] = chardet
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py
new file mode 100644
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--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/__init__.py
@@ -0,0 +1,32 @@
+######################## BEGIN LICENSE BLOCK ########################
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+__version__ = "2.3.0"
+from sys import version_info
+
+
+def detect(aBuf):
+    if ((version_info < (3, 0) and isinstance(aBuf, unicode)) or
+            (version_info >= (3, 0) and not isinstance(aBuf, bytes))):
+        raise ValueError('Expected a bytes object, not a unicode object')
+
+    from . import universaldetector
+    u = universaldetector.UniversalDetector()
+    u.reset()
+    u.feed(aBuf)
+    u.close()
+    return u.result
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5freq.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5freq.py
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--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5freq.py
@@ -0,0 +1,925 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Big5 frequency table
+# by Taiwan's Mandarin Promotion Council
+# <http://www.edu.tw:81/mandr/>
+#
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Ideal Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+BIG5_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+#Char to FreqOrder table
+BIG5_TABLE_SIZE = 5376
+
+Big5CharToFreqOrder = (
+   1,1801,1506, 255,1431, 198,   9,  82,   6,5008, 177, 202,3681,1256,2821, 110, #   16
+3814,  33,3274, 261,  76,  44,2114,  16,2946,2187,1176, 659,3971,  26,3451,2653, #   32
+1198,3972,3350,4202, 410,2215, 302, 590, 361,1964,   8, 204,  58,4510,5009,1932, #   48
+  63,5010,5011, 317,1614,  75, 222, 159,4203,2417,1480,5012,3555,3091, 224,2822, #   64
+3682,   3,  10,3973,1471,  29,2787,1135,2866,1940, 873, 130,3275,1123, 312,5013, #   80
+4511,2052, 507, 252, 682,5014, 142,1915, 124, 206,2947,  34,3556,3204,  64, 604, #   96
+5015,2501,1977,1978, 155,1991, 645, 641,1606,5016,3452, 337,  72, 406,5017,  80, #  112
+ 630, 238,3205,1509, 263, 939,1092,2654, 756,1440,1094,3453, 449,  69,2987, 591, #  128
+ 179,2096, 471, 115,2035,1844,  60,  50,2988, 134, 806,1869, 734,2036,3454, 180, #  144
+ 995,1607, 156, 537,2907, 688,5018, 319,1305, 779,2145, 514,2379, 298,4512, 359, #  160
+2502,  90,2716,1338, 663,  11, 906,1099,2553,  20,2441, 182, 532,1716,5019, 732, #  176
+1376,4204,1311,1420,3206,  25,2317,1056, 113, 399, 382,1950, 242,3455,2474, 529, #  192
+3276, 475,1447,3683,5020, 117,  21, 656, 810,1297,2300,2334,3557,5021, 126,4205, #  208
+ 706, 456, 150, 613,4513,  71,1118,2037,4206, 145,3092,  85, 835, 486,2115,1246, #  224
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,5022,2128,2359, 347,3815, 221, #  240
+3558,3135,5023,1956,1153,4207,  83, 296,1199,3093, 192, 624,  93,5024, 822,1898, #  256
+2823,3136, 795,2065, 991,1554,1542,1592,  27,  43,2867, 859, 139,1456, 860,4514, #  272
+ 437, 712,3974, 164,2397,3137, 695, 211,3037,2097, 195,3975,1608,3559,3560,3684, #  288
+3976, 234, 811,2989,2098,3977,2233,1441,3561,1615,2380, 668,2077,1638, 305, 228, #  304
+1664,4515, 467, 415,5025, 262,2099,1593, 239, 108, 300, 200,1033, 512,1247,2078, #  320
+5026,5027,2176,3207,3685,2682, 593, 845,1062,3277,  88,1723,2038,3978,1951, 212, #  336
+ 266, 152, 149, 468,1899,4208,4516,  77, 187,5028,3038,  37,   5,2990,5029,3979, #  352
+5030,5031,  39,2524,4517,2908,3208,2079,  55, 148,  74,4518, 545, 483,1474,1029, #  368
+1665, 217,1870,1531,3138,1104,2655,4209,  24, 172,3562, 900,3980,3563,3564,4519, #  384
+  32,1408,2824,1312, 329, 487,2360,2251,2717, 784,2683,   4,3039,3351,1427,1789, #  400
+ 188, 109, 499,5032,3686,1717,1790, 888,1217,3040,4520,5033,3565,5034,3352,1520, #  416
+3687,3981, 196,1034, 775,5035,5036, 929,1816, 249, 439,  38,5037,1063,5038, 794, #  432
+3982,1435,2301,  46, 178,3278,2066,5039,2381,5040, 214,1709,4521, 804,  35, 707, #  448
+ 324,3688,1601,2554, 140, 459,4210,5041,5042,1365, 839, 272, 978,2262,2580,3456, #  464
+2129,1363,3689,1423, 697, 100,3094,  48,  70,1231, 495,3139,2196,5043,1294,5044, #  480
+2080, 462, 586,1042,3279, 853, 256, 988, 185,2382,3457,1698, 434,1084,5045,3458, #  496
+ 314,2625,2788,4522,2335,2336, 569,2285, 637,1817,2525, 757,1162,1879,1616,3459, #  512
+ 287,1577,2116, 768,4523,1671,2868,3566,2526,1321,3816, 909,2418,5046,4211, 933, #  528
+3817,4212,2053,2361,1222,4524, 765,2419,1322, 786,4525,5047,1920,1462,1677,2909, #  544
+1699,5048,4526,1424,2442,3140,3690,2600,3353,1775,1941,3460,3983,4213, 309,1369, #  560
+1130,2825, 364,2234,1653,1299,3984,3567,3985,3986,2656, 525,1085,3041, 902,2001, #  576
+1475, 964,4527, 421,1845,1415,1057,2286, 940,1364,3141, 376,4528,4529,1381,   7, #  592
+2527, 983,2383, 336,1710,2684,1846, 321,3461, 559,1131,3042,2752,1809,1132,1313, #  608
+ 265,1481,1858,5049, 352,1203,2826,3280, 167,1089, 420,2827, 776, 792,1724,3568, #  624
+4214,2443,3281,5050,4215,5051, 446, 229, 333,2753, 901,3818,1200,1557,4530,2657, #  640
+1921, 395,2754,2685,3819,4216,1836, 125, 916,3209,2626,4531,5052,5053,3820,5054, #  656
+5055,5056,4532,3142,3691,1133,2555,1757,3462,1510,2318,1409,3569,5057,2146, 438, #  672
+2601,2910,2384,3354,1068, 958,3043, 461, 311,2869,2686,4217,1916,3210,4218,1979, #  688
+ 383, 750,2755,2627,4219, 274, 539, 385,1278,1442,5058,1154,1965, 384, 561, 210, #  704
+  98,1295,2556,3570,5059,1711,2420,1482,3463,3987,2911,1257, 129,5060,3821, 642, #  720
+ 523,2789,2790,2658,5061, 141,2235,1333,  68, 176, 441, 876, 907,4220, 603,2602, #  736
+ 710, 171,3464, 404, 549,  18,3143,2398,1410,3692,1666,5062,3571,4533,2912,4534, #  752
+5063,2991, 368,5064, 146, 366,  99, 871,3693,1543, 748, 807,1586,1185,  22,2263, #  768
+ 379,3822,3211,5065,3212, 505,1942,2628,1992,1382,2319,5066, 380,2362, 218, 702, #  784
+1818,1248,3465,3044,3572,3355,3282,5067,2992,3694, 930,3283,3823,5068,  59,5069, #  800
+ 585, 601,4221, 497,3466,1112,1314,4535,1802,5070,1223,1472,2177,5071, 749,1837, #  816
+ 690,1900,3824,1773,3988,1476, 429,1043,1791,2236,2117, 917,4222, 447,1086,1629, #  832
+5072, 556,5073,5074,2021,1654, 844,1090, 105, 550, 966,1758,2828,1008,1783, 686, #  848
+1095,5075,2287, 793,1602,5076,3573,2603,4536,4223,2948,2302,4537,3825, 980,2503, #  864
+ 544, 353, 527,4538, 908,2687,2913,5077, 381,2629,1943,1348,5078,1341,1252, 560, #  880
+3095,5079,3467,2870,5080,2054, 973, 886,2081, 143,4539,5081,5082, 157,3989, 496, #  896
+4224,  57, 840, 540,2039,4540,4541,3468,2118,1445, 970,2264,1748,1966,2082,4225, #  912
+3144,1234,1776,3284,2829,3695, 773,1206,2130,1066,2040,1326,3990,1738,1725,4226, #  928
+ 279,3145,  51,1544,2604, 423,1578,2131,2067, 173,4542,1880,5083,5084,1583, 264, #  944
+ 610,3696,4543,2444, 280, 154,5085,5086,5087,1739, 338,1282,3096, 693,2871,1411, #  960
+1074,3826,2445,5088,4544,5089,5090,1240, 952,2399,5091,2914,1538,2688, 685,1483, #  976
+4227,2475,1436, 953,4228,2055,4545, 671,2400,  79,4229,2446,3285, 608, 567,2689, #  992
+3469,4230,4231,1691, 393,1261,1792,2401,5092,4546,5093,5094,5095,5096,1383,1672, # 1008
+3827,3213,1464, 522,1119, 661,1150, 216, 675,4547,3991,1432,3574, 609,4548,2690, # 1024
+2402,5097,5098,5099,4232,3045,   0,5100,2476, 315, 231,2447, 301,3356,4549,2385, # 1040
+5101, 233,4233,3697,1819,4550,4551,5102,  96,1777,1315,2083,5103, 257,5104,1810, # 1056
+3698,2718,1139,1820,4234,2022,1124,2164,2791,1778,2659,5105,3097, 363,1655,3214, # 1072
+5106,2993,5107,5108,5109,3992,1567,3993, 718, 103,3215, 849,1443, 341,3357,2949, # 1088
+1484,5110,1712, 127,  67, 339,4235,2403, 679,1412, 821,5111,5112, 834, 738, 351, # 1104
+2994,2147, 846, 235,1497,1881, 418,1993,3828,2719, 186,1100,2148,2756,3575,1545, # 1120
+1355,2950,2872,1377, 583,3994,4236,2581,2995,5113,1298,3699,1078,2557,3700,2363, # 1136
+  78,3829,3830, 267,1289,2100,2002,1594,4237, 348, 369,1274,2197,2178,1838,4552, # 1152
+1821,2830,3701,2757,2288,2003,4553,2951,2758, 144,3358, 882,4554,3995,2759,3470, # 1168
+4555,2915,5114,4238,1726, 320,5115,3996,3046, 788,2996,5116,2831,1774,1327,2873, # 1184
+3997,2832,5117,1306,4556,2004,1700,3831,3576,2364,2660, 787,2023, 506, 824,3702, # 1200
+ 534, 323,4557,1044,3359,2024,1901, 946,3471,5118,1779,1500,1678,5119,1882,4558, # 1216
+ 165, 243,4559,3703,2528, 123, 683,4239, 764,4560,  36,3998,1793, 589,2916, 816, # 1232
+ 626,1667,3047,2237,1639,1555,1622,3832,3999,5120,4000,2874,1370,1228,1933, 891, # 1248
+2084,2917, 304,4240,5121, 292,2997,2720,3577, 691,2101,4241,1115,4561, 118, 662, # 1264
+5122, 611,1156, 854,2386,1316,2875,   2, 386, 515,2918,5123,5124,3286, 868,2238, # 1280
+1486, 855,2661, 785,2216,3048,5125,1040,3216,3578,5126,3146, 448,5127,1525,5128, # 1296
+2165,4562,5129,3833,5130,4242,2833,3579,3147, 503, 818,4001,3148,1568, 814, 676, # 1312
+1444, 306,1749,5131,3834,1416,1030, 197,1428, 805,2834,1501,4563,5132,5133,5134, # 1328
+1994,5135,4564,5136,5137,2198,  13,2792,3704,2998,3149,1229,1917,5138,3835,2132, # 1344
+5139,4243,4565,2404,3580,5140,2217,1511,1727,1120,5141,5142, 646,3836,2448, 307, # 1360
+5143,5144,1595,3217,5145,5146,5147,3705,1113,1356,4002,1465,2529,2530,5148, 519, # 1376
+5149, 128,2133,  92,2289,1980,5150,4003,1512, 342,3150,2199,5151,2793,2218,1981, # 1392
+3360,4244, 290,1656,1317, 789, 827,2365,5152,3837,4566, 562, 581,4004,5153, 401, # 1408
+4567,2252,  94,4568,5154,1399,2794,5155,1463,2025,4569,3218,1944,5156, 828,1105, # 1424
+4245,1262,1394,5157,4246, 605,4570,5158,1784,2876,5159,2835, 819,2102, 578,2200, # 1440
+2952,5160,1502, 436,3287,4247,3288,2836,4005,2919,3472,3473,5161,2721,2320,5162, # 1456
+5163,2337,2068,  23,4571, 193, 826,3838,2103, 699,1630,4248,3098, 390,1794,1064, # 1472
+3581,5164,1579,3099,3100,1400,5165,4249,1839,1640,2877,5166,4572,4573, 137,4250, # 1488
+ 598,3101,1967, 780, 104, 974,2953,5167, 278, 899, 253, 402, 572, 504, 493,1339, # 1504
+5168,4006,1275,4574,2582,2558,5169,3706,3049,3102,2253, 565,1334,2722, 863,  41, # 1520
+5170,5171,4575,5172,1657,2338,  19, 463,2760,4251, 606,5173,2999,3289,1087,2085, # 1536
+1323,2662,3000,5174,1631,1623,1750,4252,2691,5175,2878, 791,2723,2663,2339, 232, # 1552
+2421,5176,3001,1498,5177,2664,2630, 755,1366,3707,3290,3151,2026,1609, 119,1918, # 1568
+3474, 862,1026,4253,5178,4007,3839,4576,4008,4577,2265,1952,2477,5179,1125, 817, # 1584
+4254,4255,4009,1513,1766,2041,1487,4256,3050,3291,2837,3840,3152,5180,5181,1507, # 1600
+5182,2692, 733,  40,1632,1106,2879, 345,4257, 841,2531, 230,4578,3002,1847,3292, # 1616
+3475,5183,1263, 986,3476,5184, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562, # 1632
+4010,4011,2954, 967,2761,2665,1349, 592,2134,1692,3361,3003,1995,4258,1679,4012, # 1648
+1902,2188,5185, 739,3708,2724,1296,1290,5186,4259,2201,2202,1922,1563,2605,2559, # 1664
+1871,2762,3004,5187, 435,5188, 343,1108, 596,  17,1751,4579,2239,3477,3709,5189, # 1680
+4580, 294,3582,2955,1693, 477, 979, 281,2042,3583, 643,2043,3710,2631,2795,2266, # 1696
+1031,2340,2135,2303,3584,4581, 367,1249,2560,5190,3585,5191,4582,1283,3362,2005, # 1712
+ 240,1762,3363,4583,4584, 836,1069,3153, 474,5192,2149,2532, 268,3586,5193,3219, # 1728
+1521,1284,5194,1658,1546,4260,5195,3587,3588,5196,4261,3364,2693,1685,4262, 961, # 1744
+1673,2632, 190,2006,2203,3841,4585,4586,5197, 570,2504,3711,1490,5198,4587,2633, # 1760
+3293,1957,4588, 584,1514, 396,1045,1945,5199,4589,1968,2449,5200,5201,4590,4013, # 1776
+ 619,5202,3154,3294, 215,2007,2796,2561,3220,4591,3221,4592, 763,4263,3842,4593, # 1792
+5203,5204,1958,1767,2956,3365,3712,1174, 452,1477,4594,3366,3155,5205,2838,1253, # 1808
+2387,2189,1091,2290,4264, 492,5206, 638,1169,1825,2136,1752,4014, 648, 926,1021, # 1824
+1324,4595, 520,4596, 997, 847,1007, 892,4597,3843,2267,1872,3713,2405,1785,4598, # 1840
+1953,2957,3103,3222,1728,4265,2044,3714,4599,2008,1701,3156,1551,  30,2268,4266, # 1856
+5207,2027,4600,3589,5208, 501,5209,4267, 594,3478,2166,1822,3590,3479,3591,3223, # 1872
+ 829,2839,4268,5210,1680,3157,1225,4269,5211,3295,4601,4270,3158,2341,5212,4602, # 1888
+4271,5213,4015,4016,5214,1848,2388,2606,3367,5215,4603, 374,4017, 652,4272,4273, # 1904
+ 375,1140, 798,5216,5217,5218,2366,4604,2269, 546,1659, 138,3051,2450,4605,5219, # 1920
+2254, 612,1849, 910, 796,3844,1740,1371, 825,3845,3846,5220,2920,2562,5221, 692, # 1936
+ 444,3052,2634, 801,4606,4274,5222,1491, 244,1053,3053,4275,4276, 340,5223,4018, # 1952
+1041,3005, 293,1168,  87,1357,5224,1539, 959,5225,2240, 721, 694,4277,3847, 219, # 1968
+1478, 644,1417,3368,2666,1413,1401,1335,1389,4019,5226,5227,3006,2367,3159,1826, # 1984
+ 730,1515, 184,2840,  66,4607,5228,1660,2958, 246,3369, 378,1457, 226,3480, 975, # 2000
+4020,2959,1264,3592, 674, 696,5229, 163,5230,1141,2422,2167, 713,3593,3370,4608, # 2016
+4021,5231,5232,1186,  15,5233,1079,1070,5234,1522,3224,3594, 276,1050,2725, 758, # 2032
+1126, 653,2960,3296,5235,2342, 889,3595,4022,3104,3007, 903,1250,4609,4023,3481, # 2048
+3596,1342,1681,1718, 766,3297, 286,  89,2961,3715,5236,1713,5237,2607,3371,3008, # 2064
+5238,2962,2219,3225,2880,5239,4610,2505,2533, 181, 387,1075,4024, 731,2190,3372, # 2080
+5240,3298, 310, 313,3482,2304, 770,4278,  54,3054, 189,4611,3105,3848,4025,5241, # 2096
+1230,1617,1850, 355,3597,4279,4612,3373, 111,4280,3716,1350,3160,3483,3055,4281, # 2112
+2150,3299,3598,5242,2797,4026,4027,3009, 722,2009,5243,1071, 247,1207,2343,2478, # 2128
+1378,4613,2010, 864,1437,1214,4614, 373,3849,1142,2220, 667,4615, 442,2763,2563, # 2144
+3850,4028,1969,4282,3300,1840, 837, 170,1107, 934,1336,1883,5244,5245,2119,4283, # 2160
+2841, 743,1569,5246,4616,4284, 582,2389,1418,3484,5247,1803,5248, 357,1395,1729, # 2176
+3717,3301,2423,1564,2241,5249,3106,3851,1633,4617,1114,2086,4285,1532,5250, 482, # 2192
+2451,4618,5251,5252,1492, 833,1466,5253,2726,3599,1641,2842,5254,1526,1272,3718, # 2208
+4286,1686,1795, 416,2564,1903,1954,1804,5255,3852,2798,3853,1159,2321,5256,2881, # 2224
+4619,1610,1584,3056,2424,2764, 443,3302,1163,3161,5257,5258,4029,5259,4287,2506, # 2240
+3057,4620,4030,3162,2104,1647,3600,2011,1873,4288,5260,4289, 431,3485,5261, 250, # 2256
+  97,  81,4290,5262,1648,1851,1558, 160, 848,5263, 866, 740,1694,5264,2204,2843, # 2272
+3226,4291,4621,3719,1687, 950,2479, 426, 469,3227,3720,3721,4031,5265,5266,1188, # 2288
+ 424,1996, 861,3601,4292,3854,2205,2694, 168,1235,3602,4293,5267,2087,1674,4622, # 2304
+3374,3303, 220,2565,1009,5268,3855, 670,3010, 332,1208, 717,5269,5270,3603,2452, # 2320
+4032,3375,5271, 513,5272,1209,2882,3376,3163,4623,1080,5273,5274,5275,5276,2534, # 2336
+3722,3604, 815,1587,4033,4034,5277,3605,3486,3856,1254,4624,1328,3058,1390,4035, # 2352
+1741,4036,3857,4037,5278, 236,3858,2453,3304,5279,5280,3723,3859,1273,3860,4625, # 2368
+5281, 308,5282,4626, 245,4627,1852,2480,1307,2583, 430, 715,2137,2454,5283, 270, # 2384
+ 199,2883,4038,5284,3606,2727,1753, 761,1754, 725,1661,1841,4628,3487,3724,5285, # 2400
+5286, 587,  14,3305, 227,2608, 326, 480,2270, 943,2765,3607, 291, 650,1884,5287, # 2416
+1702,1226, 102,1547,  62,3488, 904,4629,3489,1164,4294,5288,5289,1224,1548,2766, # 2432
+ 391, 498,1493,5290,1386,1419,5291,2056,1177,4630, 813, 880,1081,2368, 566,1145, # 2448
+4631,2291,1001,1035,2566,2609,2242, 394,1286,5292,5293,2069,5294,  86,1494,1730, # 2464
+4039, 491,1588, 745, 897,2963, 843,3377,4040,2767,2884,3306,1768, 998,2221,2070, # 2480
+ 397,1827,1195,1970,3725,3011,3378, 284,5295,3861,2507,2138,2120,1904,5296,4041, # 2496
+2151,4042,4295,1036,3490,1905, 114,2567,4296, 209,1527,5297,5298,2964,2844,2635, # 2512
+2390,2728,3164, 812,2568,5299,3307,5300,1559, 737,1885,3726,1210, 885,  28,2695, # 2528
+3608,3862,5301,4297,1004,1780,4632,5302, 346,1982,2222,2696,4633,3863,1742, 797, # 2544
+1642,4043,1934,1072,1384,2152, 896,4044,3308,3727,3228,2885,3609,5303,2569,1959, # 2560
+4634,2455,1786,5304,5305,5306,4045,4298,1005,1308,3728,4299,2729,4635,4636,1528, # 2576
+2610, 161,1178,4300,1983, 987,4637,1101,4301, 631,4046,1157,3229,2425,1343,1241, # 2592
+1016,2243,2570, 372, 877,2344,2508,1160, 555,1935, 911,4047,5307, 466,1170, 169, # 2608
+1051,2921,2697,3729,2481,3012,1182,2012,2571,1251,2636,5308, 992,2345,3491,1540, # 2624
+2730,1201,2071,2406,1997,2482,5309,4638, 528,1923,2191,1503,1874,1570,2369,3379, # 2640
+3309,5310, 557,1073,5311,1828,3492,2088,2271,3165,3059,3107, 767,3108,2799,4639, # 2656
+1006,4302,4640,2346,1267,2179,3730,3230, 778,4048,3231,2731,1597,2667,5312,4641, # 2672
+5313,3493,5314,5315,5316,3310,2698,1433,3311, 131,  95,1504,4049, 723,4303,3166, # 2688
+1842,3610,2768,2192,4050,2028,2105,3731,5317,3013,4051,1218,5318,3380,3232,4052, # 2704
+4304,2584, 248,1634,3864, 912,5319,2845,3732,3060,3865, 654,  53,5320,3014,5321, # 2720
+1688,4642, 777,3494,1032,4053,1425,5322, 191, 820,2121,2846, 971,4643, 931,3233, # 2736
+ 135, 664, 783,3866,1998, 772,2922,1936,4054,3867,4644,2923,3234, 282,2732, 640, # 2752
+1372,3495,1127, 922, 325,3381,5323,5324, 711,2045,5325,5326,4055,2223,2800,1937, # 2768
+4056,3382,2224,2255,3868,2305,5327,4645,3869,1258,3312,4057,3235,2139,2965,4058, # 2784
+4059,5328,2225, 258,3236,4646, 101,1227,5329,3313,1755,5330,1391,3314,5331,2924, # 2800
+2057, 893,5332,5333,5334,1402,4305,2347,5335,5336,3237,3611,5337,5338, 878,1325, # 2816
+1781,2801,4647, 259,1385,2585, 744,1183,2272,4648,5339,4060,2509,5340, 684,1024, # 2832
+4306,5341, 472,3612,3496,1165,3315,4061,4062, 322,2153, 881, 455,1695,1152,1340, # 2848
+ 660, 554,2154,4649,1058,4650,4307, 830,1065,3383,4063,4651,1924,5342,1703,1919, # 2864
+5343, 932,2273, 122,5344,4652, 947, 677,5345,3870,2637, 297,1906,1925,2274,4653, # 2880
+2322,3316,5346,5347,4308,5348,4309,  84,4310, 112, 989,5349, 547,1059,4064, 701, # 2896
+3613,1019,5350,4311,5351,3497, 942, 639, 457,2306,2456, 993,2966, 407, 851, 494, # 2912
+4654,3384, 927,5352,1237,5353,2426,3385, 573,4312, 680, 921,2925,1279,1875, 285, # 2928
+ 790,1448,1984, 719,2168,5354,5355,4655,4065,4066,1649,5356,1541, 563,5357,1077, # 2944
+5358,3386,3061,3498, 511,3015,4067,4068,3733,4069,1268,2572,3387,3238,4656,4657, # 2960
+5359, 535,1048,1276,1189,2926,2029,3167,1438,1373,2847,2967,1134,2013,5360,4313, # 2976
+1238,2586,3109,1259,5361, 700,5362,2968,3168,3734,4314,5363,4315,1146,1876,1907, # 2992
+4658,2611,4070, 781,2427, 132,1589, 203, 147, 273,2802,2407, 898,1787,2155,4071, # 3008
+4072,5364,3871,2803,5365,5366,4659,4660,5367,3239,5368,1635,3872, 965,5369,1805, # 3024
+2699,1516,3614,1121,1082,1329,3317,4073,1449,3873,  65,1128,2848,2927,2769,1590, # 3040
+3874,5370,5371,  12,2668,  45, 976,2587,3169,4661, 517,2535,1013,1037,3240,5372, # 3056
+3875,2849,5373,3876,5374,3499,5375,2612, 614,1999,2323,3877,3110,2733,2638,5376, # 3072
+2588,4316, 599,1269,5377,1811,3735,5378,2700,3111, 759,1060, 489,1806,3388,3318, # 3088
+1358,5379,5380,2391,1387,1215,2639,2256, 490,5381,5382,4317,1759,2392,2348,5383, # 3104
+4662,3878,1908,4074,2640,1807,3241,4663,3500,3319,2770,2349, 874,5384,5385,3501, # 3120
+3736,1859,  91,2928,3737,3062,3879,4664,5386,3170,4075,2669,5387,3502,1202,1403, # 3136
+3880,2969,2536,1517,2510,4665,3503,2511,5388,4666,5389,2701,1886,1495,1731,4076, # 3152
+2370,4667,5390,2030,5391,5392,4077,2702,1216, 237,2589,4318,2324,4078,3881,4668, # 3168
+4669,2703,3615,3504, 445,4670,5393,5394,5395,5396,2771,  61,4079,3738,1823,4080, # 3184
+5397, 687,2046, 935, 925, 405,2670, 703,1096,1860,2734,4671,4081,1877,1367,2704, # 3200
+3389, 918,2106,1782,2483, 334,3320,1611,1093,4672, 564,3171,3505,3739,3390, 945, # 3216
+2641,2058,4673,5398,1926, 872,4319,5399,3506,2705,3112, 349,4320,3740,4082,4674, # 3232
+3882,4321,3741,2156,4083,4675,4676,4322,4677,2408,2047, 782,4084, 400, 251,4323, # 3248
+1624,5400,5401, 277,3742, 299,1265, 476,1191,3883,2122,4324,4325,1109, 205,5402, # 3264
+2590,1000,2157,3616,1861,5403,5404,5405,4678,5406,4679,2573, 107,2484,2158,4085, # 3280
+3507,3172,5407,1533, 541,1301, 158, 753,4326,2886,3617,5408,1696, 370,1088,4327, # 3296
+4680,3618, 579, 327, 440, 162,2244, 269,1938,1374,3508, 968,3063,  56,1396,3113, # 3312
+2107,3321,3391,5409,1927,2159,4681,3016,5410,3619,5411,5412,3743,4682,2485,5413, # 3328
+2804,5414,1650,4683,5415,2613,5416,5417,4086,2671,3392,1149,3393,4087,3884,4088, # 3344
+5418,1076,  49,5419, 951,3242,3322,3323, 450,2850, 920,5420,1812,2805,2371,4328, # 3360
+1909,1138,2372,3885,3509,5421,3243,4684,1910,1147,1518,2428,4685,3886,5422,4686, # 3376
+2393,2614, 260,1796,3244,5423,5424,3887,3324, 708,5425,3620,1704,5426,3621,1351, # 3392
+1618,3394,3017,1887, 944,4329,3395,4330,3064,3396,4331,5427,3744, 422, 413,1714, # 3408
+3325, 500,2059,2350,4332,2486,5428,1344,1911, 954,5429,1668,5430,5431,4089,2409, # 3424
+4333,3622,3888,4334,5432,2307,1318,2512,3114, 133,3115,2887,4687, 629,  31,2851, # 3440
+2706,3889,4688, 850, 949,4689,4090,2970,1732,2089,4335,1496,1853,5433,4091, 620, # 3456
+3245, 981,1242,3745,3397,1619,3746,1643,3326,2140,2457,1971,1719,3510,2169,5434, # 3472
+3246,5435,5436,3398,1829,5437,1277,4690,1565,2048,5438,1636,3623,3116,5439, 869, # 3488
+2852, 655,3890,3891,3117,4092,3018,3892,1310,3624,4691,5440,5441,5442,1733, 558, # 3504
+4692,3747, 335,1549,3065,1756,4336,3748,1946,3511,1830,1291,1192, 470,2735,2108, # 3520
+2806, 913,1054,4093,5443,1027,5444,3066,4094,4693, 982,2672,3399,3173,3512,3247, # 3536
+3248,1947,2807,5445, 571,4694,5446,1831,5447,3625,2591,1523,2429,5448,2090, 984, # 3552
+4695,3749,1960,5449,3750, 852, 923,2808,3513,3751, 969,1519, 999,2049,2325,1705, # 3568
+5450,3118, 615,1662, 151, 597,4095,2410,2326,1049, 275,4696,3752,4337, 568,3753, # 3584
+3626,2487,4338,3754,5451,2430,2275, 409,3249,5452,1566,2888,3514,1002, 769,2853, # 3600
+ 194,2091,3174,3755,2226,3327,4339, 628,1505,5453,5454,1763,2180,3019,4096, 521, # 3616
+1161,2592,1788,2206,2411,4697,4097,1625,4340,4341, 412,  42,3119, 464,5455,2642, # 3632
+4698,3400,1760,1571,2889,3515,2537,1219,2207,3893,2643,2141,2373,4699,4700,3328, # 3648
+1651,3401,3627,5456,5457,3628,2488,3516,5458,3756,5459,5460,2276,2092, 460,5461, # 3664
+4701,5462,3020, 962, 588,3629, 289,3250,2644,1116,  52,5463,3067,1797,5464,5465, # 3680
+5466,1467,5467,1598,1143,3757,4342,1985,1734,1067,4702,1280,3402, 465,4703,1572, # 3696
+ 510,5468,1928,2245,1813,1644,3630,5469,4704,3758,5470,5471,2673,1573,1534,5472, # 3712
+5473, 536,1808,1761,3517,3894,3175,2645,5474,5475,5476,4705,3518,2929,1912,2809, # 3728
+5477,3329,1122, 377,3251,5478, 360,5479,5480,4343,1529, 551,5481,2060,3759,1769, # 3744
+2431,5482,2930,4344,3330,3120,2327,2109,2031,4706,1404, 136,1468,1479, 672,1171, # 3760
+3252,2308, 271,3176,5483,2772,5484,2050, 678,2736, 865,1948,4707,5485,2014,4098, # 3776
+2971,5486,2737,2227,1397,3068,3760,4708,4709,1735,2931,3403,3631,5487,3895, 509, # 3792
+2854,2458,2890,3896,5488,5489,3177,3178,4710,4345,2538,4711,2309,1166,1010, 552, # 3808
+ 681,1888,5490,5491,2972,2973,4099,1287,1596,1862,3179, 358, 453, 736, 175, 478, # 3824
+1117, 905,1167,1097,5492,1854,1530,5493,1706,5494,2181,3519,2292,3761,3520,3632, # 3840
+4346,2093,4347,5495,3404,1193,2489,4348,1458,2193,2208,1863,1889,1421,3331,2932, # 3856
+3069,2182,3521, 595,2123,5496,4100,5497,5498,4349,1707,2646, 223,3762,1359, 751, # 3872
+3121, 183,3522,5499,2810,3021, 419,2374, 633, 704,3897,2394, 241,5500,5501,5502, # 3888
+ 838,3022,3763,2277,2773,2459,3898,1939,2051,4101,1309,3122,2246,1181,5503,1136, # 3904
+2209,3899,2375,1446,4350,2310,4712,5504,5505,4351,1055,2615, 484,3764,5506,4102, # 3920
+ 625,4352,2278,3405,1499,4353,4103,5507,4104,4354,3253,2279,2280,3523,5508,5509, # 3936
+2774, 808,2616,3765,3406,4105,4355,3123,2539, 526,3407,3900,4356, 955,5510,1620, # 3952
+4357,2647,2432,5511,1429,3766,1669,1832, 994, 928,5512,3633,1260,5513,5514,5515, # 3968
+1949,2293, 741,2933,1626,4358,2738,2460, 867,1184, 362,3408,1392,5516,5517,4106, # 3984
+4359,1770,1736,3254,2934,4713,4714,1929,2707,1459,1158,5518,3070,3409,2891,1292, # 4000
+1930,2513,2855,3767,1986,1187,2072,2015,2617,4360,5519,2574,2514,2170,3768,2490, # 4016
+3332,5520,3769,4715,5521,5522, 666,1003,3023,1022,3634,4361,5523,4716,1814,2257, # 4032
+ 574,3901,1603, 295,1535, 705,3902,4362, 283, 858, 417,5524,5525,3255,4717,4718, # 4048
+3071,1220,1890,1046,2281,2461,4107,1393,1599, 689,2575, 388,4363,5526,2491, 802, # 4064
+5527,2811,3903,2061,1405,2258,5528,4719,3904,2110,1052,1345,3256,1585,5529, 809, # 4080
+5530,5531,5532, 575,2739,3524, 956,1552,1469,1144,2328,5533,2329,1560,2462,3635, # 4096
+3257,4108, 616,2210,4364,3180,2183,2294,5534,1833,5535,3525,4720,5536,1319,3770, # 4112
+3771,1211,3636,1023,3258,1293,2812,5537,5538,5539,3905, 607,2311,3906, 762,2892, # 4128
+1439,4365,1360,4721,1485,3072,5540,4722,1038,4366,1450,2062,2648,4367,1379,4723, # 4144
+2593,5541,5542,4368,1352,1414,2330,2935,1172,5543,5544,3907,3908,4724,1798,1451, # 4160
+5545,5546,5547,5548,2936,4109,4110,2492,2351, 411,4111,4112,3637,3333,3124,4725, # 4176
+1561,2674,1452,4113,1375,5549,5550,  47,2974, 316,5551,1406,1591,2937,3181,5552, # 4192
+1025,2142,3125,3182, 354,2740, 884,2228,4369,2412, 508,3772, 726,3638, 996,2433, # 4208
+3639, 729,5553, 392,2194,1453,4114,4726,3773,5554,5555,2463,3640,2618,1675,2813, # 4224
+ 919,2352,2975,2353,1270,4727,4115,  73,5556,5557, 647,5558,3259,2856,2259,1550, # 4240
+1346,3024,5559,1332, 883,3526,5560,5561,5562,5563,3334,2775,5564,1212, 831,1347, # 4256
+4370,4728,2331,3909,1864,3073, 720,3910,4729,4730,3911,5565,4371,5566,5567,4731, # 4272
+5568,5569,1799,4732,3774,2619,4733,3641,1645,2376,4734,5570,2938, 669,2211,2675, # 4288
+2434,5571,2893,5572,5573,1028,3260,5574,4372,2413,5575,2260,1353,5576,5577,4735, # 4304
+3183, 518,5578,4116,5579,4373,1961,5580,2143,4374,5581,5582,3025,2354,2355,3912, # 4320
+ 516,1834,1454,4117,2708,4375,4736,2229,2620,1972,1129,3642,5583,2776,5584,2976, # 4336
+1422, 577,1470,3026,1524,3410,5585,5586, 432,4376,3074,3527,5587,2594,1455,2515, # 4352
+2230,1973,1175,5588,1020,2741,4118,3528,4737,5589,2742,5590,1743,1361,3075,3529, # 4368
+2649,4119,4377,4738,2295, 895, 924,4378,2171, 331,2247,3076, 166,1627,3077,1098, # 4384
+5591,1232,2894,2231,3411,4739, 657, 403,1196,2377, 542,3775,3412,1600,4379,3530, # 4400
+5592,4740,2777,3261, 576, 530,1362,4741,4742,2540,2676,3776,4120,5593, 842,3913, # 4416
+5594,2814,2032,1014,4121, 213,2709,3413, 665, 621,4380,5595,3777,2939,2435,5596, # 4432
+2436,3335,3643,3414,4743,4381,2541,4382,4744,3644,1682,4383,3531,1380,5597, 724, # 4448
+2282, 600,1670,5598,1337,1233,4745,3126,2248,5599,1621,4746,5600, 651,4384,5601, # 4464
+1612,4385,2621,5602,2857,5603,2743,2312,3078,5604, 716,2464,3079, 174,1255,2710, # 4480
+4122,3645, 548,1320,1398, 728,4123,1574,5605,1891,1197,3080,4124,5606,3081,3082, # 4496
+3778,3646,3779, 747,5607, 635,4386,4747,5608,5609,5610,4387,5611,5612,4748,5613, # 4512
+3415,4749,2437, 451,5614,3780,2542,2073,4388,2744,4389,4125,5615,1764,4750,5616, # 4528
+4390, 350,4751,2283,2395,2493,5617,4391,4126,2249,1434,4127, 488,4752, 458,4392, # 4544
+4128,3781, 771,1330,2396,3914,2576,3184,2160,2414,1553,2677,3185,4393,5618,2494, # 4560
+2895,2622,1720,2711,4394,3416,4753,5619,2543,4395,5620,3262,4396,2778,5621,2016, # 4576
+2745,5622,1155,1017,3782,3915,5623,3336,2313, 201,1865,4397,1430,5624,4129,5625, # 4592
+5626,5627,5628,5629,4398,1604,5630, 414,1866, 371,2595,4754,4755,3532,2017,3127, # 4608
+4756,1708, 960,4399, 887, 389,2172,1536,1663,1721,5631,2232,4130,2356,2940,1580, # 4624
+5632,5633,1744,4757,2544,4758,4759,5634,4760,5635,2074,5636,4761,3647,3417,2896, # 4640
+4400,5637,4401,2650,3418,2815, 673,2712,2465, 709,3533,4131,3648,4402,5638,1148, # 4656
+ 502, 634,5639,5640,1204,4762,3649,1575,4763,2623,3783,5641,3784,3128, 948,3263, # 4672
+ 121,1745,3916,1110,5642,4403,3083,2516,3027,4132,3785,1151,1771,3917,1488,4133, # 4688
+1987,5643,2438,3534,5644,5645,2094,5646,4404,3918,1213,1407,2816, 531,2746,2545, # 4704
+3264,1011,1537,4764,2779,4405,3129,1061,5647,3786,3787,1867,2897,5648,2018, 120, # 4720
+4406,4407,2063,3650,3265,2314,3919,2678,3419,1955,4765,4134,5649,3535,1047,2713, # 4736
+1266,5650,1368,4766,2858, 649,3420,3920,2546,2747,1102,2859,2679,5651,5652,2000, # 4752
+5653,1111,3651,2977,5654,2495,3921,3652,2817,1855,3421,3788,5655,5656,3422,2415, # 4768
+2898,3337,3266,3653,5657,2577,5658,3654,2818,4135,1460, 856,5659,3655,5660,2899, # 4784
+2978,5661,2900,3922,5662,4408, 632,2517, 875,3923,1697,3924,2296,5663,5664,4767, # 4800
+3028,1239, 580,4768,4409,5665, 914, 936,2075,1190,4136,1039,2124,5666,5667,5668, # 4816
+5669,3423,1473,5670,1354,4410,3925,4769,2173,3084,4137, 915,3338,4411,4412,3339, # 4832
+1605,1835,5671,2748, 398,3656,4413,3926,4138, 328,1913,2860,4139,3927,1331,4414, # 4848
+3029, 937,4415,5672,3657,4140,4141,3424,2161,4770,3425, 524, 742, 538,3085,1012, # 4864
+5673,5674,3928,2466,5675, 658,1103, 225,3929,5676,5677,4771,5678,4772,5679,3267, # 4880
+1243,5680,4142, 963,2250,4773,5681,2714,3658,3186,5682,5683,2596,2332,5684,4774, # 4896
+5685,5686,5687,3536, 957,3426,2547,2033,1931,2941,2467, 870,2019,3659,1746,2780, # 4912
+2781,2439,2468,5688,3930,5689,3789,3130,3790,3537,3427,3791,5690,1179,3086,5691, # 4928
+3187,2378,4416,3792,2548,3188,3131,2749,4143,5692,3428,1556,2549,2297, 977,2901, # 4944
+2034,4144,1205,3429,5693,1765,3430,3189,2125,1271, 714,1689,4775,3538,5694,2333, # 4960
+3931, 533,4417,3660,2184, 617,5695,2469,3340,3539,2315,5696,5697,3190,5698,5699, # 4976
+3932,1988, 618, 427,2651,3540,3431,5700,5701,1244,1690,5702,2819,4418,4776,5703, # 4992
+3541,4777,5704,2284,1576, 473,3661,4419,3432, 972,5705,3662,5706,3087,5707,5708, # 5008
+4778,4779,5709,3793,4145,4146,5710, 153,4780, 356,5711,1892,2902,4420,2144, 408, # 5024
+ 803,2357,5712,3933,5713,4421,1646,2578,2518,4781,4782,3934,5714,3935,4422,5715, # 5040
+2416,3433, 752,5716,5717,1962,3341,2979,5718, 746,3030,2470,4783,4423,3794, 698, # 5056
+4784,1893,4424,3663,2550,4785,3664,3936,5719,3191,3434,5720,1824,1302,4147,2715, # 5072
+3937,1974,4425,5721,4426,3192, 823,1303,1288,1236,2861,3542,4148,3435, 774,3938, # 5088
+5722,1581,4786,1304,2862,3939,4787,5723,2440,2162,1083,3268,4427,4149,4428, 344, # 5104
+1173, 288,2316, 454,1683,5724,5725,1461,4788,4150,2597,5726,5727,4789, 985, 894, # 5120
+5728,3436,3193,5729,1914,2942,3795,1989,5730,2111,1975,5731,4151,5732,2579,1194, # 5136
+ 425,5733,4790,3194,1245,3796,4429,5734,5735,2863,5736, 636,4791,1856,3940, 760, # 5152
+1800,5737,4430,2212,1508,4792,4152,1894,1684,2298,5738,5739,4793,4431,4432,2213, # 5168
+ 479,5740,5741, 832,5742,4153,2496,5743,2980,2497,3797, 990,3132, 627,1815,2652, # 5184
+4433,1582,4434,2126,2112,3543,4794,5744, 799,4435,3195,5745,4795,2113,1737,3031, # 5200
+1018, 543, 754,4436,3342,1676,4796,4797,4154,4798,1489,5746,3544,5747,2624,2903, # 5216
+4155,5748,5749,2981,5750,5751,5752,5753,3196,4799,4800,2185,1722,5754,3269,3270, # 5232
+1843,3665,1715, 481, 365,1976,1857,5755,5756,1963,2498,4801,5757,2127,3666,3271, # 5248
+ 433,1895,2064,2076,5758, 602,2750,5759,5760,5761,5762,5763,3032,1628,3437,5764, # 5264
+3197,4802,4156,2904,4803,2519,5765,2551,2782,5766,5767,5768,3343,4804,2905,5769, # 5280
+4805,5770,2864,4806,4807,1221,2982,4157,2520,5771,5772,5773,1868,1990,5774,5775, # 5296
+5776,1896,5777,5778,4808,1897,4158, 318,5779,2095,4159,4437,5780,5781, 485,5782, # 5312
+ 938,3941, 553,2680, 116,5783,3942,3667,5784,3545,2681,2783,3438,3344,2820,5785, # 5328
+3668,2943,4160,1747,2944,2983,5786,5787, 207,5788,4809,5789,4810,2521,5790,3033, # 5344
+ 890,3669,3943,5791,1878,3798,3439,5792,2186,2358,3440,1652,5793,5794,5795, 941, # 5360
+2299, 208,3546,4161,2020, 330,4438,3944,2906,2499,3799,4439,4811,5796,5797,5798, # 5376  #last 512
+#Everything below is of no interest for detection purpose
+2522,1613,4812,5799,3345,3945,2523,5800,4162,5801,1637,4163,2471,4813,3946,5802, # 5392
+2500,3034,3800,5803,5804,2195,4814,5805,2163,5806,5807,5808,5809,5810,5811,5812, # 5408
+5813,5814,5815,5816,5817,5818,5819,5820,5821,5822,5823,5824,5825,5826,5827,5828, # 5424
+5829,5830,5831,5832,5833,5834,5835,5836,5837,5838,5839,5840,5841,5842,5843,5844, # 5440
+5845,5846,5847,5848,5849,5850,5851,5852,5853,5854,5855,5856,5857,5858,5859,5860, # 5456
+5861,5862,5863,5864,5865,5866,5867,5868,5869,5870,5871,5872,5873,5874,5875,5876, # 5472
+5877,5878,5879,5880,5881,5882,5883,5884,5885,5886,5887,5888,5889,5890,5891,5892, # 5488
+5893,5894,5895,5896,5897,5898,5899,5900,5901,5902,5903,5904,5905,5906,5907,5908, # 5504
+5909,5910,5911,5912,5913,5914,5915,5916,5917,5918,5919,5920,5921,5922,5923,5924, # 5520
+5925,5926,5927,5928,5929,5930,5931,5932,5933,5934,5935,5936,5937,5938,5939,5940, # 5536
+5941,5942,5943,5944,5945,5946,5947,5948,5949,5950,5951,5952,5953,5954,5955,5956, # 5552
+5957,5958,5959,5960,5961,5962,5963,5964,5965,5966,5967,5968,5969,5970,5971,5972, # 5568
+5973,5974,5975,5976,5977,5978,5979,5980,5981,5982,5983,5984,5985,5986,5987,5988, # 5584
+5989,5990,5991,5992,5993,5994,5995,5996,5997,5998,5999,6000,6001,6002,6003,6004, # 5600
+6005,6006,6007,6008,6009,6010,6011,6012,6013,6014,6015,6016,6017,6018,6019,6020, # 5616
+6021,6022,6023,6024,6025,6026,6027,6028,6029,6030,6031,6032,6033,6034,6035,6036, # 5632
+6037,6038,6039,6040,6041,6042,6043,6044,6045,6046,6047,6048,6049,6050,6051,6052, # 5648
+6053,6054,6055,6056,6057,6058,6059,6060,6061,6062,6063,6064,6065,6066,6067,6068, # 5664
+6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080,6081,6082,6083,6084, # 5680
+6085,6086,6087,6088,6089,6090,6091,6092,6093,6094,6095,6096,6097,6098,6099,6100, # 5696
+6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112,6113,6114,6115,6116, # 5712
+6117,6118,6119,6120,6121,6122,6123,6124,6125,6126,6127,6128,6129,6130,6131,6132, # 5728
+6133,6134,6135,6136,6137,6138,6139,6140,6141,6142,6143,6144,6145,6146,6147,6148, # 5744
+6149,6150,6151,6152,6153,6154,6155,6156,6157,6158,6159,6160,6161,6162,6163,6164, # 5760
+6165,6166,6167,6168,6169,6170,6171,6172,6173,6174,6175,6176,6177,6178,6179,6180, # 5776
+6181,6182,6183,6184,6185,6186,6187,6188,6189,6190,6191,6192,6193,6194,6195,6196, # 5792
+6197,6198,6199,6200,6201,6202,6203,6204,6205,6206,6207,6208,6209,6210,6211,6212, # 5808
+6213,6214,6215,6216,6217,6218,6219,6220,6221,6222,6223,3670,6224,6225,6226,6227, # 5824
+6228,6229,6230,6231,6232,6233,6234,6235,6236,6237,6238,6239,6240,6241,6242,6243, # 5840
+6244,6245,6246,6247,6248,6249,6250,6251,6252,6253,6254,6255,6256,6257,6258,6259, # 5856
+6260,6261,6262,6263,6264,6265,6266,6267,6268,6269,6270,6271,6272,6273,6274,6275, # 5872
+6276,6277,6278,6279,6280,6281,6282,6283,6284,6285,4815,6286,6287,6288,6289,6290, # 5888
+6291,6292,4816,6293,6294,6295,6296,6297,6298,6299,6300,6301,6302,6303,6304,6305, # 5904
+6306,6307,6308,6309,6310,6311,4817,4818,6312,6313,6314,6315,6316,6317,6318,4819, # 5920
+6319,6320,6321,6322,6323,6324,6325,6326,6327,6328,6329,6330,6331,6332,6333,6334, # 5936
+6335,6336,6337,4820,6338,6339,6340,6341,6342,6343,6344,6345,6346,6347,6348,6349, # 5952
+6350,6351,6352,6353,6354,6355,6356,6357,6358,6359,6360,6361,6362,6363,6364,6365, # 5968
+6366,6367,6368,6369,6370,6371,6372,6373,6374,6375,6376,6377,6378,6379,6380,6381, # 5984
+6382,6383,6384,6385,6386,6387,6388,6389,6390,6391,6392,6393,6394,6395,6396,6397, # 6000
+6398,6399,6400,6401,6402,6403,6404,6405,6406,6407,6408,6409,6410,3441,6411,6412, # 6016
+6413,6414,6415,6416,6417,6418,6419,6420,6421,6422,6423,6424,6425,4440,6426,6427, # 6032
+6428,6429,6430,6431,6432,6433,6434,6435,6436,6437,6438,6439,6440,6441,6442,6443, # 6048
+6444,6445,6446,6447,6448,6449,6450,6451,6452,6453,6454,4821,6455,6456,6457,6458, # 6064
+6459,6460,6461,6462,6463,6464,6465,6466,6467,6468,6469,6470,6471,6472,6473,6474, # 6080
+6475,6476,6477,3947,3948,6478,6479,6480,6481,3272,4441,6482,6483,6484,6485,4442, # 6096
+6486,6487,6488,6489,6490,6491,6492,6493,6494,6495,6496,4822,6497,6498,6499,6500, # 6112
+6501,6502,6503,6504,6505,6506,6507,6508,6509,6510,6511,6512,6513,6514,6515,6516, # 6128
+6517,6518,6519,6520,6521,6522,6523,6524,6525,6526,6527,6528,6529,6530,6531,6532, # 6144
+6533,6534,6535,6536,6537,6538,6539,6540,6541,6542,6543,6544,6545,6546,6547,6548, # 6160
+6549,6550,6551,6552,6553,6554,6555,6556,2784,6557,4823,6558,6559,6560,6561,6562, # 6176
+6563,6564,6565,6566,6567,6568,6569,3949,6570,6571,6572,4824,6573,6574,6575,6576, # 6192
+6577,6578,6579,6580,6581,6582,6583,4825,6584,6585,6586,3950,2785,6587,6588,6589, # 6208
+6590,6591,6592,6593,6594,6595,6596,6597,6598,6599,6600,6601,6602,6603,6604,6605, # 6224
+6606,6607,6608,6609,6610,6611,6612,4826,6613,6614,6615,4827,6616,6617,6618,6619, # 6240
+6620,6621,6622,6623,6624,6625,4164,6626,6627,6628,6629,6630,6631,6632,6633,6634, # 6256
+3547,6635,4828,6636,6637,6638,6639,6640,6641,6642,3951,2984,6643,6644,6645,6646, # 6272
+6647,6648,6649,4165,6650,4829,6651,6652,4830,6653,6654,6655,6656,6657,6658,6659, # 6288
+6660,6661,6662,4831,6663,6664,6665,6666,6667,6668,6669,6670,6671,4166,6672,4832, # 6304
+3952,6673,6674,6675,6676,4833,6677,6678,6679,4167,6680,6681,6682,3198,6683,6684, # 6320
+6685,6686,6687,6688,6689,6690,6691,6692,6693,6694,6695,6696,6697,4834,6698,6699, # 6336
+6700,6701,6702,6703,6704,6705,6706,6707,6708,6709,6710,6711,6712,6713,6714,6715, # 6352
+6716,6717,6718,6719,6720,6721,6722,6723,6724,6725,6726,6727,6728,6729,6730,6731, # 6368
+6732,6733,6734,4443,6735,6736,6737,6738,6739,6740,6741,6742,6743,6744,6745,4444, # 6384
+6746,6747,6748,6749,6750,6751,6752,6753,6754,6755,6756,6757,6758,6759,6760,6761, # 6400
+6762,6763,6764,6765,6766,6767,6768,6769,6770,6771,6772,6773,6774,6775,6776,6777, # 6416
+6778,6779,6780,6781,4168,6782,6783,3442,6784,6785,6786,6787,6788,6789,6790,6791, # 6432
+4169,6792,6793,6794,6795,6796,6797,6798,6799,6800,6801,6802,6803,6804,6805,6806, # 6448
+6807,6808,6809,6810,6811,4835,6812,6813,6814,4445,6815,6816,4446,6817,6818,6819, # 6464
+6820,6821,6822,6823,6824,6825,6826,6827,6828,6829,6830,6831,6832,6833,6834,6835, # 6480
+3548,6836,6837,6838,6839,6840,6841,6842,6843,6844,6845,6846,4836,6847,6848,6849, # 6496
+6850,6851,6852,6853,6854,3953,6855,6856,6857,6858,6859,6860,6861,6862,6863,6864, # 6512
+6865,6866,6867,6868,6869,6870,6871,6872,6873,6874,6875,6876,6877,3199,6878,6879, # 6528
+6880,6881,6882,4447,6883,6884,6885,6886,6887,6888,6889,6890,6891,6892,6893,6894, # 6544
+6895,6896,6897,6898,6899,6900,6901,6902,6903,6904,4170,6905,6906,6907,6908,6909, # 6560
+6910,6911,6912,6913,6914,6915,6916,6917,6918,6919,6920,6921,6922,6923,6924,6925, # 6576
+6926,6927,4837,6928,6929,6930,6931,6932,6933,6934,6935,6936,3346,6937,6938,4838, # 6592
+6939,6940,6941,4448,6942,6943,6944,6945,6946,4449,6947,6948,6949,6950,6951,6952, # 6608
+6953,6954,6955,6956,6957,6958,6959,6960,6961,6962,6963,6964,6965,6966,6967,6968, # 6624
+6969,6970,6971,6972,6973,6974,6975,6976,6977,6978,6979,6980,6981,6982,6983,6984, # 6640
+6985,6986,6987,6988,6989,6990,6991,6992,6993,6994,3671,6995,6996,6997,6998,4839, # 6656
+6999,7000,7001,7002,3549,7003,7004,7005,7006,7007,7008,7009,7010,7011,7012,7013, # 6672
+7014,7015,7016,7017,7018,7019,7020,7021,7022,7023,7024,7025,7026,7027,7028,7029, # 6688
+7030,4840,7031,7032,7033,7034,7035,7036,7037,7038,4841,7039,7040,7041,7042,7043, # 6704
+7044,7045,7046,7047,7048,7049,7050,7051,7052,7053,7054,7055,7056,7057,7058,7059, # 6720
+7060,7061,7062,7063,7064,7065,7066,7067,7068,7069,7070,2985,7071,7072,7073,7074, # 6736
+7075,7076,7077,7078,7079,7080,4842,7081,7082,7083,7084,7085,7086,7087,7088,7089, # 6752
+7090,7091,7092,7093,7094,7095,7096,7097,7098,7099,7100,7101,7102,7103,7104,7105, # 6768
+7106,7107,7108,7109,7110,7111,7112,7113,7114,7115,7116,7117,7118,4450,7119,7120, # 6784
+7121,7122,7123,7124,7125,7126,7127,7128,7129,7130,7131,7132,7133,7134,7135,7136, # 6800
+7137,7138,7139,7140,7141,7142,7143,4843,7144,7145,7146,7147,7148,7149,7150,7151, # 6816
+7152,7153,7154,7155,7156,7157,7158,7159,7160,7161,7162,7163,7164,7165,7166,7167, # 6832
+7168,7169,7170,7171,7172,7173,7174,7175,7176,7177,7178,7179,7180,7181,7182,7183, # 6848
+7184,7185,7186,7187,7188,4171,4172,7189,7190,7191,7192,7193,7194,7195,7196,7197, # 6864
+7198,7199,7200,7201,7202,7203,7204,7205,7206,7207,7208,7209,7210,7211,7212,7213, # 6880
+7214,7215,7216,7217,7218,7219,7220,7221,7222,7223,7224,7225,7226,7227,7228,7229, # 6896
+7230,7231,7232,7233,7234,7235,7236,7237,7238,7239,7240,7241,7242,7243,7244,7245, # 6912
+7246,7247,7248,7249,7250,7251,7252,7253,7254,7255,7256,7257,7258,7259,7260,7261, # 6928
+7262,7263,7264,7265,7266,7267,7268,7269,7270,7271,7272,7273,7274,7275,7276,7277, # 6944
+7278,7279,7280,7281,7282,7283,7284,7285,7286,7287,7288,7289,7290,7291,7292,7293, # 6960
+7294,7295,7296,4844,7297,7298,7299,7300,7301,7302,7303,7304,7305,7306,7307,7308, # 6976
+7309,7310,7311,7312,7313,7314,7315,7316,4451,7317,7318,7319,7320,7321,7322,7323, # 6992
+7324,7325,7326,7327,7328,7329,7330,7331,7332,7333,7334,7335,7336,7337,7338,7339, # 7008
+7340,7341,7342,7343,7344,7345,7346,7347,7348,7349,7350,7351,7352,7353,4173,7354, # 7024
+7355,4845,7356,7357,7358,7359,7360,7361,7362,7363,7364,7365,7366,7367,7368,7369, # 7040
+7370,7371,7372,7373,7374,7375,7376,7377,7378,7379,7380,7381,7382,7383,7384,7385, # 7056
+7386,7387,7388,4846,7389,7390,7391,7392,7393,7394,7395,7396,7397,7398,7399,7400, # 7072
+7401,7402,7403,7404,7405,3672,7406,7407,7408,7409,7410,7411,7412,7413,7414,7415, # 7088
+7416,7417,7418,7419,7420,7421,7422,7423,7424,7425,7426,7427,7428,7429,7430,7431, # 7104
+7432,7433,7434,7435,7436,7437,7438,7439,7440,7441,7442,7443,7444,7445,7446,7447, # 7120
+7448,7449,7450,7451,7452,7453,4452,7454,3200,7455,7456,7457,7458,7459,7460,7461, # 7136
+7462,7463,7464,7465,7466,7467,7468,7469,7470,7471,7472,7473,7474,4847,7475,7476, # 7152
+7477,3133,7478,7479,7480,7481,7482,7483,7484,7485,7486,7487,7488,7489,7490,7491, # 7168
+7492,7493,7494,7495,7496,7497,7498,7499,7500,7501,7502,3347,7503,7504,7505,7506, # 7184
+7507,7508,7509,7510,7511,7512,7513,7514,7515,7516,7517,7518,7519,7520,7521,4848, # 7200
+7522,7523,7524,7525,7526,7527,7528,7529,7530,7531,7532,7533,7534,7535,7536,7537, # 7216
+7538,7539,7540,7541,7542,7543,7544,7545,7546,7547,7548,7549,3801,4849,7550,7551, # 7232
+7552,7553,7554,7555,7556,7557,7558,7559,7560,7561,7562,7563,7564,7565,7566,7567, # 7248
+7568,7569,3035,7570,7571,7572,7573,7574,7575,7576,7577,7578,7579,7580,7581,7582, # 7264
+7583,7584,7585,7586,7587,7588,7589,7590,7591,7592,7593,7594,7595,7596,7597,7598, # 7280
+7599,7600,7601,7602,7603,7604,7605,7606,7607,7608,7609,7610,7611,7612,7613,7614, # 7296
+7615,7616,4850,7617,7618,3802,7619,7620,7621,7622,7623,7624,7625,7626,7627,7628, # 7312
+7629,7630,7631,7632,4851,7633,7634,7635,7636,7637,7638,7639,7640,7641,7642,7643, # 7328
+7644,7645,7646,7647,7648,7649,7650,7651,7652,7653,7654,7655,7656,7657,7658,7659, # 7344
+7660,7661,7662,7663,7664,7665,7666,7667,7668,7669,7670,4453,7671,7672,7673,7674, # 7360
+7675,7676,7677,7678,7679,7680,7681,7682,7683,7684,7685,7686,7687,7688,7689,7690, # 7376
+7691,7692,7693,7694,7695,7696,7697,3443,7698,7699,7700,7701,7702,4454,7703,7704, # 7392
+7705,7706,7707,7708,7709,7710,7711,7712,7713,2472,7714,7715,7716,7717,7718,7719, # 7408
+7720,7721,7722,7723,7724,7725,7726,7727,7728,7729,7730,7731,3954,7732,7733,7734, # 7424
+7735,7736,7737,7738,7739,7740,7741,7742,7743,7744,7745,7746,7747,7748,7749,7750, # 7440
+3134,7751,7752,4852,7753,7754,7755,4853,7756,7757,7758,7759,7760,4174,7761,7762, # 7456
+7763,7764,7765,7766,7767,7768,7769,7770,7771,7772,7773,7774,7775,7776,7777,7778, # 7472
+7779,7780,7781,7782,7783,7784,7785,7786,7787,7788,7789,7790,7791,7792,7793,7794, # 7488
+7795,7796,7797,7798,7799,7800,7801,7802,7803,7804,7805,4854,7806,7807,7808,7809, # 7504
+7810,7811,7812,7813,7814,7815,7816,7817,7818,7819,7820,7821,7822,7823,7824,7825, # 7520
+4855,7826,7827,7828,7829,7830,7831,7832,7833,7834,7835,7836,7837,7838,7839,7840, # 7536
+7841,7842,7843,7844,7845,7846,7847,3955,7848,7849,7850,7851,7852,7853,7854,7855, # 7552
+7856,7857,7858,7859,7860,3444,7861,7862,7863,7864,7865,7866,7867,7868,7869,7870, # 7568
+7871,7872,7873,7874,7875,7876,7877,7878,7879,7880,7881,7882,7883,7884,7885,7886, # 7584
+7887,7888,7889,7890,7891,4175,7892,7893,7894,7895,7896,4856,4857,7897,7898,7899, # 7600
+7900,2598,7901,7902,7903,7904,7905,7906,7907,7908,4455,7909,7910,7911,7912,7913, # 7616
+7914,3201,7915,7916,7917,7918,7919,7920,7921,4858,7922,7923,7924,7925,7926,7927, # 7632
+7928,7929,7930,7931,7932,7933,7934,7935,7936,7937,7938,7939,7940,7941,7942,7943, # 7648
+7944,7945,7946,7947,7948,7949,7950,7951,7952,7953,7954,7955,7956,7957,7958,7959, # 7664
+7960,7961,7962,7963,7964,7965,7966,7967,7968,7969,7970,7971,7972,7973,7974,7975, # 7680
+7976,7977,7978,7979,7980,7981,4859,7982,7983,7984,7985,7986,7987,7988,7989,7990, # 7696
+7991,7992,7993,7994,7995,7996,4860,7997,7998,7999,8000,8001,8002,8003,8004,8005, # 7712
+8006,8007,8008,8009,8010,8011,8012,8013,8014,8015,8016,4176,8017,8018,8019,8020, # 7728
+8021,8022,8023,4861,8024,8025,8026,8027,8028,8029,8030,8031,8032,8033,8034,8035, # 7744
+8036,4862,4456,8037,8038,8039,8040,4863,8041,8042,8043,8044,8045,8046,8047,8048, # 7760
+8049,8050,8051,8052,8053,8054,8055,8056,8057,8058,8059,8060,8061,8062,8063,8064, # 7776
+8065,8066,8067,8068,8069,8070,8071,8072,8073,8074,8075,8076,8077,8078,8079,8080, # 7792
+8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095,8096, # 7808
+8097,8098,8099,4864,4177,8100,8101,8102,8103,8104,8105,8106,8107,8108,8109,8110, # 7824
+8111,8112,8113,8114,8115,8116,8117,8118,8119,8120,4178,8121,8122,8123,8124,8125, # 7840
+8126,8127,8128,8129,8130,8131,8132,8133,8134,8135,8136,8137,8138,8139,8140,8141, # 7856
+8142,8143,8144,8145,4865,4866,8146,8147,8148,8149,8150,8151,8152,8153,8154,8155, # 7872
+8156,8157,8158,8159,8160,8161,8162,8163,8164,8165,4179,8166,8167,8168,8169,8170, # 7888
+8171,8172,8173,8174,8175,8176,8177,8178,8179,8180,8181,4457,8182,8183,8184,8185, # 7904
+8186,8187,8188,8189,8190,8191,8192,8193,8194,8195,8196,8197,8198,8199,8200,8201, # 7920
+8202,8203,8204,8205,8206,8207,8208,8209,8210,8211,8212,8213,8214,8215,8216,8217, # 7936
+8218,8219,8220,8221,8222,8223,8224,8225,8226,8227,8228,8229,8230,8231,8232,8233, # 7952
+8234,8235,8236,8237,8238,8239,8240,8241,8242,8243,8244,8245,8246,8247,8248,8249, # 7968
+8250,8251,8252,8253,8254,8255,8256,3445,8257,8258,8259,8260,8261,8262,4458,8263, # 7984
+8264,8265,8266,8267,8268,8269,8270,8271,8272,4459,8273,8274,8275,8276,3550,8277, # 8000
+8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,8288,8289,4460,8290,8291,8292, # 8016
+8293,8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,8304,8305,8306,8307,4867, # 8032
+8308,8309,8310,8311,8312,3551,8313,8314,8315,8316,8317,8318,8319,8320,8321,8322, # 8048
+8323,8324,8325,8326,4868,8327,8328,8329,8330,8331,8332,8333,8334,8335,8336,8337, # 8064
+8338,8339,8340,8341,8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,8352,8353, # 8080
+8354,8355,8356,8357,8358,8359,8360,8361,8362,8363,4869,4461,8364,8365,8366,8367, # 8096
+8368,8369,8370,4870,8371,8372,8373,8374,8375,8376,8377,8378,8379,8380,8381,8382, # 8112
+8383,8384,8385,8386,8387,8388,8389,8390,8391,8392,8393,8394,8395,8396,8397,8398, # 8128
+8399,8400,8401,8402,8403,8404,8405,8406,8407,8408,8409,8410,4871,8411,8412,8413, # 8144
+8414,8415,8416,8417,8418,8419,8420,8421,8422,4462,8423,8424,8425,8426,8427,8428, # 8160
+8429,8430,8431,8432,8433,2986,8434,8435,8436,8437,8438,8439,8440,8441,8442,8443, # 8176
+8444,8445,8446,8447,8448,8449,8450,8451,8452,8453,8454,8455,8456,8457,8458,8459, # 8192
+8460,8461,8462,8463,8464,8465,8466,8467,8468,8469,8470,8471,8472,8473,8474,8475, # 8208
+8476,8477,8478,4180,8479,8480,8481,8482,8483,8484,8485,8486,8487,8488,8489,8490, # 8224
+8491,8492,8493,8494,8495,8496,8497,8498,8499,8500,8501,8502,8503,8504,8505,8506, # 8240
+8507,8508,8509,8510,8511,8512,8513,8514,8515,8516,8517,8518,8519,8520,8521,8522, # 8256
+8523,8524,8525,8526,8527,8528,8529,8530,8531,8532,8533,8534,8535,8536,8537,8538, # 8272
+8539,8540,8541,8542,8543,8544,8545,8546,8547,8548,8549,8550,8551,8552,8553,8554, # 8288
+8555,8556,8557,8558,8559,8560,8561,8562,8563,8564,4872,8565,8566,8567,8568,8569, # 8304
+8570,8571,8572,8573,4873,8574,8575,8576,8577,8578,8579,8580,8581,8582,8583,8584, # 8320
+8585,8586,8587,8588,8589,8590,8591,8592,8593,8594,8595,8596,8597,8598,8599,8600, # 8336
+8601,8602,8603,8604,8605,3803,8606,8607,8608,8609,8610,8611,8612,8613,4874,3804, # 8352
+8614,8615,8616,8617,8618,8619,8620,8621,3956,8622,8623,8624,8625,8626,8627,8628, # 8368
+8629,8630,8631,8632,8633,8634,8635,8636,8637,8638,2865,8639,8640,8641,8642,8643, # 8384
+8644,8645,8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,8656,4463,8657,8658, # 8400
+8659,4875,4876,8660,8661,8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,8672, # 8416
+8673,8674,8675,8676,8677,8678,8679,8680,8681,4464,8682,8683,8684,8685,8686,8687, # 8432
+8688,8689,8690,8691,8692,8693,8694,8695,8696,8697,8698,8699,8700,8701,8702,8703, # 8448
+8704,8705,8706,8707,8708,8709,2261,8710,8711,8712,8713,8714,8715,8716,8717,8718, # 8464
+8719,8720,8721,8722,8723,8724,8725,8726,8727,8728,8729,8730,8731,8732,8733,4181, # 8480
+8734,8735,8736,8737,8738,8739,8740,8741,8742,8743,8744,8745,8746,8747,8748,8749, # 8496
+8750,8751,8752,8753,8754,8755,8756,8757,8758,8759,8760,8761,8762,8763,4877,8764, # 8512
+8765,8766,8767,8768,8769,8770,8771,8772,8773,8774,8775,8776,8777,8778,8779,8780, # 8528
+8781,8782,8783,8784,8785,8786,8787,8788,4878,8789,4879,8790,8791,8792,4880,8793, # 8544
+8794,8795,8796,8797,8798,8799,8800,8801,4881,8802,8803,8804,8805,8806,8807,8808, # 8560
+8809,8810,8811,8812,8813,8814,8815,3957,8816,8817,8818,8819,8820,8821,8822,8823, # 8576
+8824,8825,8826,8827,8828,8829,8830,8831,8832,8833,8834,8835,8836,8837,8838,8839, # 8592
+8840,8841,8842,8843,8844,8845,8846,8847,4882,8848,8849,8850,8851,8852,8853,8854, # 8608
+8855,8856,8857,8858,8859,8860,8861,8862,8863,8864,8865,8866,8867,8868,8869,8870, # 8624
+8871,8872,8873,8874,8875,8876,8877,8878,8879,8880,8881,8882,8883,8884,3202,8885, # 8640
+8886,8887,8888,8889,8890,8891,8892,8893,8894,8895,8896,8897,8898,8899,8900,8901, # 8656
+8902,8903,8904,8905,8906,8907,8908,8909,8910,8911,8912,8913,8914,8915,8916,8917, # 8672
+8918,8919,8920,8921,8922,8923,8924,4465,8925,8926,8927,8928,8929,8930,8931,8932, # 8688
+4883,8933,8934,8935,8936,8937,8938,8939,8940,8941,8942,8943,2214,8944,8945,8946, # 8704
+8947,8948,8949,8950,8951,8952,8953,8954,8955,8956,8957,8958,8959,8960,8961,8962, # 8720
+8963,8964,8965,4884,8966,8967,8968,8969,8970,8971,8972,8973,8974,8975,8976,8977, # 8736
+8978,8979,8980,8981,8982,8983,8984,8985,8986,8987,8988,8989,8990,8991,8992,4885, # 8752
+8993,8994,8995,8996,8997,8998,8999,9000,9001,9002,9003,9004,9005,9006,9007,9008, # 8768
+9009,9010,9011,9012,9013,9014,9015,9016,9017,9018,9019,9020,9021,4182,9022,9023, # 8784
+9024,9025,9026,9027,9028,9029,9030,9031,9032,9033,9034,9035,9036,9037,9038,9039, # 8800
+9040,9041,9042,9043,9044,9045,9046,9047,9048,9049,9050,9051,9052,9053,9054,9055, # 8816
+9056,9057,9058,9059,9060,9061,9062,9063,4886,9064,9065,9066,9067,9068,9069,4887, # 8832
+9070,9071,9072,9073,9074,9075,9076,9077,9078,9079,9080,9081,9082,9083,9084,9085, # 8848
+9086,9087,9088,9089,9090,9091,9092,9093,9094,9095,9096,9097,9098,9099,9100,9101, # 8864
+9102,9103,9104,9105,9106,9107,9108,9109,9110,9111,9112,9113,9114,9115,9116,9117, # 8880
+9118,9119,9120,9121,9122,9123,9124,9125,9126,9127,9128,9129,9130,9131,9132,9133, # 8896
+9134,9135,9136,9137,9138,9139,9140,9141,3958,9142,9143,9144,9145,9146,9147,9148, # 8912
+9149,9150,9151,4888,9152,9153,9154,9155,9156,9157,9158,9159,9160,9161,9162,9163, # 8928
+9164,9165,9166,9167,9168,9169,9170,9171,9172,9173,9174,9175,4889,9176,9177,9178, # 8944
+9179,9180,9181,9182,9183,9184,9185,9186,9187,9188,9189,9190,9191,9192,9193,9194, # 8960
+9195,9196,9197,9198,9199,9200,9201,9202,9203,4890,9204,9205,9206,9207,9208,9209, # 8976
+9210,9211,9212,9213,9214,9215,9216,9217,9218,9219,9220,9221,9222,4466,9223,9224, # 8992
+9225,9226,9227,9228,9229,9230,9231,9232,9233,9234,9235,9236,9237,9238,9239,9240, # 9008
+9241,9242,9243,9244,9245,4891,9246,9247,9248,9249,9250,9251,9252,9253,9254,9255, # 9024
+9256,9257,4892,9258,9259,9260,9261,4893,4894,9262,9263,9264,9265,9266,9267,9268, # 9040
+9269,9270,9271,9272,9273,4467,9274,9275,9276,9277,9278,9279,9280,9281,9282,9283, # 9056
+9284,9285,3673,9286,9287,9288,9289,9290,9291,9292,9293,9294,9295,9296,9297,9298, # 9072
+9299,9300,9301,9302,9303,9304,9305,9306,9307,9308,9309,9310,9311,9312,9313,9314, # 9088
+9315,9316,9317,9318,9319,9320,9321,9322,4895,9323,9324,9325,9326,9327,9328,9329, # 9104
+9330,9331,9332,9333,9334,9335,9336,9337,9338,9339,9340,9341,9342,9343,9344,9345, # 9120
+9346,9347,4468,9348,9349,9350,9351,9352,9353,9354,9355,9356,9357,9358,9359,9360, # 9136
+9361,9362,9363,9364,9365,9366,9367,9368,9369,9370,9371,9372,9373,4896,9374,4469, # 9152
+9375,9376,9377,9378,9379,4897,9380,9381,9382,9383,9384,9385,9386,9387,9388,9389, # 9168
+9390,9391,9392,9393,9394,9395,9396,9397,9398,9399,9400,9401,9402,9403,9404,9405, # 9184
+9406,4470,9407,2751,9408,9409,3674,3552,9410,9411,9412,9413,9414,9415,9416,9417, # 9200
+9418,9419,9420,9421,4898,9422,9423,9424,9425,9426,9427,9428,9429,3959,9430,9431, # 9216
+9432,9433,9434,9435,9436,4471,9437,9438,9439,9440,9441,9442,9443,9444,9445,9446, # 9232
+9447,9448,9449,9450,3348,9451,9452,9453,9454,9455,9456,9457,9458,9459,9460,9461, # 9248
+9462,9463,9464,9465,9466,9467,9468,9469,9470,9471,9472,4899,9473,9474,9475,9476, # 9264
+9477,4900,9478,9479,9480,9481,9482,9483,9484,9485,9486,9487,9488,3349,9489,9490, # 9280
+9491,9492,9493,9494,9495,9496,9497,9498,9499,9500,9501,9502,9503,9504,9505,9506, # 9296
+9507,9508,9509,9510,9511,9512,9513,9514,9515,9516,9517,9518,9519,9520,4901,9521, # 9312
+9522,9523,9524,9525,9526,4902,9527,9528,9529,9530,9531,9532,9533,9534,9535,9536, # 9328
+9537,9538,9539,9540,9541,9542,9543,9544,9545,9546,9547,9548,9549,9550,9551,9552, # 9344
+9553,9554,9555,9556,9557,9558,9559,9560,9561,9562,9563,9564,9565,9566,9567,9568, # 9360
+9569,9570,9571,9572,9573,9574,9575,9576,9577,9578,9579,9580,9581,9582,9583,9584, # 9376
+3805,9585,9586,9587,9588,9589,9590,9591,9592,9593,9594,9595,9596,9597,9598,9599, # 9392
+9600,9601,9602,4903,9603,9604,9605,9606,9607,4904,9608,9609,9610,9611,9612,9613, # 9408
+9614,4905,9615,9616,9617,9618,9619,9620,9621,9622,9623,9624,9625,9626,9627,9628, # 9424
+9629,9630,9631,9632,4906,9633,9634,9635,9636,9637,9638,9639,9640,9641,9642,9643, # 9440
+4907,9644,9645,9646,9647,9648,9649,9650,9651,9652,9653,9654,9655,9656,9657,9658, # 9456
+9659,9660,9661,9662,9663,9664,9665,9666,9667,9668,9669,9670,9671,9672,4183,9673, # 9472
+9674,9675,9676,9677,4908,9678,9679,9680,9681,4909,9682,9683,9684,9685,9686,9687, # 9488
+9688,9689,9690,4910,9691,9692,9693,3675,9694,9695,9696,2945,9697,9698,9699,9700, # 9504
+9701,9702,9703,9704,9705,4911,9706,9707,9708,9709,9710,9711,9712,9713,9714,9715, # 9520
+9716,9717,9718,9719,9720,9721,9722,9723,9724,9725,9726,9727,9728,9729,9730,9731, # 9536
+9732,9733,9734,9735,4912,9736,9737,9738,9739,9740,4913,9741,9742,9743,9744,9745, # 9552
+9746,9747,9748,9749,9750,9751,9752,9753,9754,9755,9756,9757,9758,4914,9759,9760, # 9568
+9761,9762,9763,9764,9765,9766,9767,9768,9769,9770,9771,9772,9773,9774,9775,9776, # 9584
+9777,9778,9779,9780,9781,9782,4915,9783,9784,9785,9786,9787,9788,9789,9790,9791, # 9600
+9792,9793,4916,9794,9795,9796,9797,9798,9799,9800,9801,9802,9803,9804,9805,9806, # 9616
+9807,9808,9809,9810,9811,9812,9813,9814,9815,9816,9817,9818,9819,9820,9821,9822, # 9632
+9823,9824,9825,9826,9827,9828,9829,9830,9831,9832,9833,9834,9835,9836,9837,9838, # 9648
+9839,9840,9841,9842,9843,9844,9845,9846,9847,9848,9849,9850,9851,9852,9853,9854, # 9664
+9855,9856,9857,9858,9859,9860,9861,9862,9863,9864,9865,9866,9867,9868,4917,9869, # 9680
+9870,9871,9872,9873,9874,9875,9876,9877,9878,9879,9880,9881,9882,9883,9884,9885, # 9696
+9886,9887,9888,9889,9890,9891,9892,4472,9893,9894,9895,9896,9897,3806,9898,9899, # 9712
+9900,9901,9902,9903,9904,9905,9906,9907,9908,9909,9910,9911,9912,9913,9914,4918, # 9728
+9915,9916,9917,4919,9918,9919,9920,9921,4184,9922,9923,9924,9925,9926,9927,9928, # 9744
+9929,9930,9931,9932,9933,9934,9935,9936,9937,9938,9939,9940,9941,9942,9943,9944, # 9760
+9945,9946,4920,9947,9948,9949,9950,9951,9952,9953,9954,9955,4185,9956,9957,9958, # 9776
+9959,9960,9961,9962,9963,9964,9965,4921,9966,9967,9968,4473,9969,9970,9971,9972, # 9792
+9973,9974,9975,9976,9977,4474,9978,9979,9980,9981,9982,9983,9984,9985,9986,9987, # 9808
+9988,9989,9990,9991,9992,9993,9994,9995,9996,9997,9998,9999,10000,10001,10002,10003, # 9824
+10004,10005,10006,10007,10008,10009,10010,10011,10012,10013,10014,10015,10016,10017,10018,10019, # 9840
+10020,10021,4922,10022,4923,10023,10024,10025,10026,10027,10028,10029,10030,10031,10032,10033, # 9856
+10034,10035,10036,10037,10038,10039,10040,10041,10042,10043,10044,10045,10046,10047,10048,4924, # 9872
+10049,10050,10051,10052,10053,10054,10055,10056,10057,10058,10059,10060,10061,10062,10063,10064, # 9888
+10065,10066,10067,10068,10069,10070,10071,10072,10073,10074,10075,10076,10077,10078,10079,10080, # 9904
+10081,10082,10083,10084,10085,10086,10087,4475,10088,10089,10090,10091,10092,10093,10094,10095, # 9920
+10096,10097,4476,10098,10099,10100,10101,10102,10103,10104,10105,10106,10107,10108,10109,10110, # 9936
+10111,2174,10112,10113,10114,10115,10116,10117,10118,10119,10120,10121,10122,10123,10124,10125, # 9952
+10126,10127,10128,10129,10130,10131,10132,10133,10134,10135,10136,10137,10138,10139,10140,3807, # 9968
+4186,4925,10141,10142,10143,10144,10145,10146,10147,4477,4187,10148,10149,10150,10151,10152, # 9984
+10153,4188,10154,10155,10156,10157,10158,10159,10160,10161,4926,10162,10163,10164,10165,10166, #10000
+10167,10168,10169,10170,10171,10172,10173,10174,10175,10176,10177,10178,10179,10180,10181,10182, #10016
+10183,10184,10185,10186,10187,10188,10189,10190,10191,10192,3203,10193,10194,10195,10196,10197, #10032
+10198,10199,10200,4478,10201,10202,10203,10204,4479,10205,10206,10207,10208,10209,10210,10211, #10048
+10212,10213,10214,10215,10216,10217,10218,10219,10220,10221,10222,10223,10224,10225,10226,10227, #10064
+10228,10229,10230,10231,10232,10233,10234,4927,10235,10236,10237,10238,10239,10240,10241,10242, #10080
+10243,10244,10245,10246,10247,10248,10249,10250,10251,10252,10253,10254,10255,10256,10257,10258, #10096
+10259,10260,10261,10262,10263,10264,10265,10266,10267,10268,10269,10270,10271,10272,10273,4480, #10112
+4928,4929,10274,10275,10276,10277,10278,10279,10280,10281,10282,10283,10284,10285,10286,10287, #10128
+10288,10289,10290,10291,10292,10293,10294,10295,10296,10297,10298,10299,10300,10301,10302,10303, #10144
+10304,10305,10306,10307,10308,10309,10310,10311,10312,10313,10314,10315,10316,10317,10318,10319, #10160
+10320,10321,10322,10323,10324,10325,10326,10327,10328,10329,10330,10331,10332,10333,10334,4930, #10176
+10335,10336,10337,10338,10339,10340,10341,10342,4931,10343,10344,10345,10346,10347,10348,10349, #10192
+10350,10351,10352,10353,10354,10355,3088,10356,2786,10357,10358,10359,10360,4189,10361,10362, #10208
+10363,10364,10365,10366,10367,10368,10369,10370,10371,10372,10373,10374,10375,4932,10376,10377, #10224
+10378,10379,10380,10381,10382,10383,10384,10385,10386,10387,10388,10389,10390,10391,10392,4933, #10240
+10393,10394,10395,4934,10396,10397,10398,10399,10400,10401,10402,10403,10404,10405,10406,10407, #10256
+10408,10409,10410,10411,10412,3446,10413,10414,10415,10416,10417,10418,10419,10420,10421,10422, #10272
+10423,4935,10424,10425,10426,10427,10428,10429,10430,4936,10431,10432,10433,10434,10435,10436, #10288
+10437,10438,10439,10440,10441,10442,10443,4937,10444,10445,10446,10447,4481,10448,10449,10450, #10304
+10451,10452,10453,10454,10455,10456,10457,10458,10459,10460,10461,10462,10463,10464,10465,10466, #10320
+10467,10468,10469,10470,10471,10472,10473,10474,10475,10476,10477,10478,10479,10480,10481,10482, #10336
+10483,10484,10485,10486,10487,10488,10489,10490,10491,10492,10493,10494,10495,10496,10497,10498, #10352
+10499,10500,10501,10502,10503,10504,10505,4938,10506,10507,10508,10509,10510,2552,10511,10512, #10368
+10513,10514,10515,10516,3447,10517,10518,10519,10520,10521,10522,10523,10524,10525,10526,10527, #10384
+10528,10529,10530,10531,10532,10533,10534,10535,10536,10537,10538,10539,10540,10541,10542,10543, #10400
+4482,10544,4939,10545,10546,10547,10548,10549,10550,10551,10552,10553,10554,10555,10556,10557, #10416
+10558,10559,10560,10561,10562,10563,10564,10565,10566,10567,3676,4483,10568,10569,10570,10571, #10432
+10572,3448,10573,10574,10575,10576,10577,10578,10579,10580,10581,10582,10583,10584,10585,10586, #10448
+10587,10588,10589,10590,10591,10592,10593,10594,10595,10596,10597,10598,10599,10600,10601,10602, #10464
+10603,10604,10605,10606,10607,10608,10609,10610,10611,10612,10613,10614,10615,10616,10617,10618, #10480
+10619,10620,10621,10622,10623,10624,10625,10626,10627,4484,10628,10629,10630,10631,10632,4940, #10496
+10633,10634,10635,10636,10637,10638,10639,10640,10641,10642,10643,10644,10645,10646,10647,10648, #10512
+10649,10650,10651,10652,10653,10654,10655,10656,4941,10657,10658,10659,2599,10660,10661,10662, #10528
+10663,10664,10665,10666,3089,10667,10668,10669,10670,10671,10672,10673,10674,10675,10676,10677, #10544
+10678,10679,10680,4942,10681,10682,10683,10684,10685,10686,10687,10688,10689,10690,10691,10692, #10560
+10693,10694,10695,10696,10697,4485,10698,10699,10700,10701,10702,10703,10704,4943,10705,3677, #10576
+10706,10707,10708,10709,10710,10711,10712,4944,10713,10714,10715,10716,10717,10718,10719,10720, #10592
+10721,10722,10723,10724,10725,10726,10727,10728,4945,10729,10730,10731,10732,10733,10734,10735, #10608
+10736,10737,10738,10739,10740,10741,10742,10743,10744,10745,10746,10747,10748,10749,10750,10751, #10624
+10752,10753,10754,10755,10756,10757,10758,10759,10760,10761,4946,10762,10763,10764,10765,10766, #10640
+10767,4947,4948,10768,10769,10770,10771,10772,10773,10774,10775,10776,10777,10778,10779,10780, #10656
+10781,10782,10783,10784,10785,10786,10787,10788,10789,10790,10791,10792,10793,10794,10795,10796, #10672
+10797,10798,10799,10800,10801,10802,10803,10804,10805,10806,10807,10808,10809,10810,10811,10812, #10688
+10813,10814,10815,10816,10817,10818,10819,10820,10821,10822,10823,10824,10825,10826,10827,10828, #10704
+10829,10830,10831,10832,10833,10834,10835,10836,10837,10838,10839,10840,10841,10842,10843,10844, #10720
+10845,10846,10847,10848,10849,10850,10851,10852,10853,10854,10855,10856,10857,10858,10859,10860, #10736
+10861,10862,10863,10864,10865,10866,10867,10868,10869,10870,10871,10872,10873,10874,10875,10876, #10752
+10877,10878,4486,10879,10880,10881,10882,10883,10884,10885,4949,10886,10887,10888,10889,10890, #10768
+10891,10892,10893,10894,10895,10896,10897,10898,10899,10900,10901,10902,10903,10904,10905,10906, #10784
+10907,10908,10909,10910,10911,10912,10913,10914,10915,10916,10917,10918,10919,4487,10920,10921, #10800
+10922,10923,10924,10925,10926,10927,10928,10929,10930,10931,10932,4950,10933,10934,10935,10936, #10816
+10937,10938,10939,10940,10941,10942,10943,10944,10945,10946,10947,10948,10949,4488,10950,10951, #10832
+10952,10953,10954,10955,10956,10957,10958,10959,4190,10960,10961,10962,10963,10964,10965,10966, #10848
+10967,10968,10969,10970,10971,10972,10973,10974,10975,10976,10977,10978,10979,10980,10981,10982, #10864
+10983,10984,10985,10986,10987,10988,10989,10990,10991,10992,10993,10994,10995,10996,10997,10998, #10880
+10999,11000,11001,11002,11003,11004,11005,11006,3960,11007,11008,11009,11010,11011,11012,11013, #10896
+11014,11015,11016,11017,11018,11019,11020,11021,11022,11023,11024,11025,11026,11027,11028,11029, #10912
+11030,11031,11032,4951,11033,11034,11035,11036,11037,11038,11039,11040,11041,11042,11043,11044, #10928
+11045,11046,11047,4489,11048,11049,11050,11051,4952,11052,11053,11054,11055,11056,11057,11058, #10944
+4953,11059,11060,11061,11062,11063,11064,11065,11066,11067,11068,11069,11070,11071,4954,11072, #10960
+11073,11074,11075,11076,11077,11078,11079,11080,11081,11082,11083,11084,11085,11086,11087,11088, #10976
+11089,11090,11091,11092,11093,11094,11095,11096,11097,11098,11099,11100,11101,11102,11103,11104, #10992
+11105,11106,11107,11108,11109,11110,11111,11112,11113,11114,11115,3808,11116,11117,11118,11119, #11008
+11120,11121,11122,11123,11124,11125,11126,11127,11128,11129,11130,11131,11132,11133,11134,4955, #11024
+11135,11136,11137,11138,11139,11140,11141,11142,11143,11144,11145,11146,11147,11148,11149,11150, #11040
+11151,11152,11153,11154,11155,11156,11157,11158,11159,11160,11161,4956,11162,11163,11164,11165, #11056
+11166,11167,11168,11169,11170,11171,11172,11173,11174,11175,11176,11177,11178,11179,11180,4957, #11072
+11181,11182,11183,11184,11185,11186,4958,11187,11188,11189,11190,11191,11192,11193,11194,11195, #11088
+11196,11197,11198,11199,11200,3678,11201,11202,11203,11204,11205,11206,4191,11207,11208,11209, #11104
+11210,11211,11212,11213,11214,11215,11216,11217,11218,11219,11220,11221,11222,11223,11224,11225, #11120
+11226,11227,11228,11229,11230,11231,11232,11233,11234,11235,11236,11237,11238,11239,11240,11241, #11136
+11242,11243,11244,11245,11246,11247,11248,11249,11250,11251,4959,11252,11253,11254,11255,11256, #11152
+11257,11258,11259,11260,11261,11262,11263,11264,11265,11266,11267,11268,11269,11270,11271,11272, #11168
+11273,11274,11275,11276,11277,11278,11279,11280,11281,11282,11283,11284,11285,11286,11287,11288, #11184
+11289,11290,11291,11292,11293,11294,11295,11296,11297,11298,11299,11300,11301,11302,11303,11304, #11200
+11305,11306,11307,11308,11309,11310,11311,11312,11313,11314,3679,11315,11316,11317,11318,4490, #11216
+11319,11320,11321,11322,11323,11324,11325,11326,11327,11328,11329,11330,11331,11332,11333,11334, #11232
+11335,11336,11337,11338,11339,11340,11341,11342,11343,11344,11345,11346,11347,4960,11348,11349, #11248
+11350,11351,11352,11353,11354,11355,11356,11357,11358,11359,11360,11361,11362,11363,11364,11365, #11264
+11366,11367,11368,11369,11370,11371,11372,11373,11374,11375,11376,11377,3961,4961,11378,11379, #11280
+11380,11381,11382,11383,11384,11385,11386,11387,11388,11389,11390,11391,11392,11393,11394,11395, #11296
+11396,11397,4192,11398,11399,11400,11401,11402,11403,11404,11405,11406,11407,11408,11409,11410, #11312
+11411,4962,11412,11413,11414,11415,11416,11417,11418,11419,11420,11421,11422,11423,11424,11425, #11328
+11426,11427,11428,11429,11430,11431,11432,11433,11434,11435,11436,11437,11438,11439,11440,11441, #11344
+11442,11443,11444,11445,11446,11447,11448,11449,11450,11451,11452,11453,11454,11455,11456,11457, #11360
+11458,11459,11460,11461,11462,11463,11464,11465,11466,11467,11468,11469,4963,11470,11471,4491, #11376
+11472,11473,11474,11475,4964,11476,11477,11478,11479,11480,11481,11482,11483,11484,11485,11486, #11392
+11487,11488,11489,11490,11491,11492,4965,11493,11494,11495,11496,11497,11498,11499,11500,11501, #11408
+11502,11503,11504,11505,11506,11507,11508,11509,11510,11511,11512,11513,11514,11515,11516,11517, #11424
+11518,11519,11520,11521,11522,11523,11524,11525,11526,11527,11528,11529,3962,11530,11531,11532, #11440
+11533,11534,11535,11536,11537,11538,11539,11540,11541,11542,11543,11544,11545,11546,11547,11548, #11456
+11549,11550,11551,11552,11553,11554,11555,11556,11557,11558,11559,11560,11561,11562,11563,11564, #11472
+4193,4194,11565,11566,11567,11568,11569,11570,11571,11572,11573,11574,11575,11576,11577,11578, #11488
+11579,11580,11581,11582,11583,11584,11585,11586,11587,11588,11589,11590,11591,4966,4195,11592, #11504
+11593,11594,11595,11596,11597,11598,11599,11600,11601,11602,11603,11604,3090,11605,11606,11607, #11520
+11608,11609,11610,4967,11611,11612,11613,11614,11615,11616,11617,11618,11619,11620,11621,11622, #11536
+11623,11624,11625,11626,11627,11628,11629,11630,11631,11632,11633,11634,11635,11636,11637,11638, #11552
+11639,11640,11641,11642,11643,11644,11645,11646,11647,11648,11649,11650,11651,11652,11653,11654, #11568
+11655,11656,11657,11658,11659,11660,11661,11662,11663,11664,11665,11666,11667,11668,11669,11670, #11584
+11671,11672,11673,11674,4968,11675,11676,11677,11678,11679,11680,11681,11682,11683,11684,11685, #11600
+11686,11687,11688,11689,11690,11691,11692,11693,3809,11694,11695,11696,11697,11698,11699,11700, #11616
+11701,11702,11703,11704,11705,11706,11707,11708,11709,11710,11711,11712,11713,11714,11715,11716, #11632
+11717,11718,3553,11719,11720,11721,11722,11723,11724,11725,11726,11727,11728,11729,11730,4969, #11648
+11731,11732,11733,11734,11735,11736,11737,11738,11739,11740,4492,11741,11742,11743,11744,11745, #11664
+11746,11747,11748,11749,11750,11751,11752,4970,11753,11754,11755,11756,11757,11758,11759,11760, #11680
+11761,11762,11763,11764,11765,11766,11767,11768,11769,11770,11771,11772,11773,11774,11775,11776, #11696
+11777,11778,11779,11780,11781,11782,11783,11784,11785,11786,11787,11788,11789,11790,4971,11791, #11712
+11792,11793,11794,11795,11796,11797,4972,11798,11799,11800,11801,11802,11803,11804,11805,11806, #11728
+11807,11808,11809,11810,4973,11811,11812,11813,11814,11815,11816,11817,11818,11819,11820,11821, #11744
+11822,11823,11824,11825,11826,11827,11828,11829,11830,11831,11832,11833,11834,3680,3810,11835, #11760
+11836,4974,11837,11838,11839,11840,11841,11842,11843,11844,11845,11846,11847,11848,11849,11850, #11776
+11851,11852,11853,11854,11855,11856,11857,11858,11859,11860,11861,11862,11863,11864,11865,11866, #11792
+11867,11868,11869,11870,11871,11872,11873,11874,11875,11876,11877,11878,11879,11880,11881,11882, #11808
+11883,11884,4493,11885,11886,11887,11888,11889,11890,11891,11892,11893,11894,11895,11896,11897, #11824
+11898,11899,11900,11901,11902,11903,11904,11905,11906,11907,11908,11909,11910,11911,11912,11913, #11840
+11914,11915,4975,11916,11917,11918,11919,11920,11921,11922,11923,11924,11925,11926,11927,11928, #11856
+11929,11930,11931,11932,11933,11934,11935,11936,11937,11938,11939,11940,11941,11942,11943,11944, #11872
+11945,11946,11947,11948,11949,4976,11950,11951,11952,11953,11954,11955,11956,11957,11958,11959, #11888
+11960,11961,11962,11963,11964,11965,11966,11967,11968,11969,11970,11971,11972,11973,11974,11975, #11904
+11976,11977,11978,11979,11980,11981,11982,11983,11984,11985,11986,11987,4196,11988,11989,11990, #11920
+11991,11992,4977,11993,11994,11995,11996,11997,11998,11999,12000,12001,12002,12003,12004,12005, #11936
+12006,12007,12008,12009,12010,12011,12012,12013,12014,12015,12016,12017,12018,12019,12020,12021, #11952
+12022,12023,12024,12025,12026,12027,12028,12029,12030,12031,12032,12033,12034,12035,12036,12037, #11968
+12038,12039,12040,12041,12042,12043,12044,12045,12046,12047,12048,12049,12050,12051,12052,12053, #11984
+12054,12055,12056,12057,12058,12059,12060,12061,4978,12062,12063,12064,12065,12066,12067,12068, #12000
+12069,12070,12071,12072,12073,12074,12075,12076,12077,12078,12079,12080,12081,12082,12083,12084, #12016
+12085,12086,12087,12088,12089,12090,12091,12092,12093,12094,12095,12096,12097,12098,12099,12100, #12032
+12101,12102,12103,12104,12105,12106,12107,12108,12109,12110,12111,12112,12113,12114,12115,12116, #12048
+12117,12118,12119,12120,12121,12122,12123,4979,12124,12125,12126,12127,12128,4197,12129,12130, #12064
+12131,12132,12133,12134,12135,12136,12137,12138,12139,12140,12141,12142,12143,12144,12145,12146, #12080
+12147,12148,12149,12150,12151,12152,12153,12154,4980,12155,12156,12157,12158,12159,12160,4494, #12096
+12161,12162,12163,12164,3811,12165,12166,12167,12168,12169,4495,12170,12171,4496,12172,12173, #12112
+12174,12175,12176,3812,12177,12178,12179,12180,12181,12182,12183,12184,12185,12186,12187,12188, #12128
+12189,12190,12191,12192,12193,12194,12195,12196,12197,12198,12199,12200,12201,12202,12203,12204, #12144
+12205,12206,12207,12208,12209,12210,12211,12212,12213,12214,12215,12216,12217,12218,12219,12220, #12160
+12221,4981,12222,12223,12224,12225,12226,12227,12228,12229,12230,12231,12232,12233,12234,12235, #12176
+4982,12236,12237,12238,12239,12240,12241,12242,12243,12244,12245,4983,12246,12247,12248,12249, #12192
+4984,12250,12251,12252,12253,12254,12255,12256,12257,12258,12259,12260,12261,12262,12263,12264, #12208
+4985,12265,4497,12266,12267,12268,12269,12270,12271,12272,12273,12274,12275,12276,12277,12278, #12224
+12279,12280,12281,12282,12283,12284,12285,12286,12287,4986,12288,12289,12290,12291,12292,12293, #12240
+12294,12295,12296,2473,12297,12298,12299,12300,12301,12302,12303,12304,12305,12306,12307,12308, #12256
+12309,12310,12311,12312,12313,12314,12315,12316,12317,12318,12319,3963,12320,12321,12322,12323, #12272
+12324,12325,12326,12327,12328,12329,12330,12331,12332,4987,12333,12334,12335,12336,12337,12338, #12288
+12339,12340,12341,12342,12343,12344,12345,12346,12347,12348,12349,12350,12351,12352,12353,12354, #12304
+12355,12356,12357,12358,12359,3964,12360,12361,12362,12363,12364,12365,12366,12367,12368,12369, #12320
+12370,3965,12371,12372,12373,12374,12375,12376,12377,12378,12379,12380,12381,12382,12383,12384, #12336
+12385,12386,12387,12388,12389,12390,12391,12392,12393,12394,12395,12396,12397,12398,12399,12400, #12352
+12401,12402,12403,12404,12405,12406,12407,12408,4988,12409,12410,12411,12412,12413,12414,12415, #12368
+12416,12417,12418,12419,12420,12421,12422,12423,12424,12425,12426,12427,12428,12429,12430,12431, #12384
+12432,12433,12434,12435,12436,12437,12438,3554,12439,12440,12441,12442,12443,12444,12445,12446, #12400
+12447,12448,12449,12450,12451,12452,12453,12454,12455,12456,12457,12458,12459,12460,12461,12462, #12416
+12463,12464,4989,12465,12466,12467,12468,12469,12470,12471,12472,12473,12474,12475,12476,12477, #12432
+12478,12479,12480,4990,12481,12482,12483,12484,12485,12486,12487,12488,12489,4498,12490,12491, #12448
+12492,12493,12494,12495,12496,12497,12498,12499,12500,12501,12502,12503,12504,12505,12506,12507, #12464
+12508,12509,12510,12511,12512,12513,12514,12515,12516,12517,12518,12519,12520,12521,12522,12523, #12480
+12524,12525,12526,12527,12528,12529,12530,12531,12532,12533,12534,12535,12536,12537,12538,12539, #12496
+12540,12541,12542,12543,12544,12545,12546,12547,12548,12549,12550,12551,4991,12552,12553,12554, #12512
+12555,12556,12557,12558,12559,12560,12561,12562,12563,12564,12565,12566,12567,12568,12569,12570, #12528
+12571,12572,12573,12574,12575,12576,12577,12578,3036,12579,12580,12581,12582,12583,3966,12584, #12544
+12585,12586,12587,12588,12589,12590,12591,12592,12593,12594,12595,12596,12597,12598,12599,12600, #12560
+12601,12602,12603,12604,12605,12606,12607,12608,12609,12610,12611,12612,12613,12614,12615,12616, #12576
+12617,12618,12619,12620,12621,12622,12623,12624,12625,12626,12627,12628,12629,12630,12631,12632, #12592
+12633,12634,12635,12636,12637,12638,12639,12640,12641,12642,12643,12644,12645,12646,4499,12647, #12608
+12648,12649,12650,12651,12652,12653,12654,12655,12656,12657,12658,12659,12660,12661,12662,12663, #12624
+12664,12665,12666,12667,12668,12669,12670,12671,12672,12673,12674,12675,12676,12677,12678,12679, #12640
+12680,12681,12682,12683,12684,12685,12686,12687,12688,12689,12690,12691,12692,12693,12694,12695, #12656
+12696,12697,12698,4992,12699,12700,12701,12702,12703,12704,12705,12706,12707,12708,12709,12710, #12672
+12711,12712,12713,12714,12715,12716,12717,12718,12719,12720,12721,12722,12723,12724,12725,12726, #12688
+12727,12728,12729,12730,12731,12732,12733,12734,12735,12736,12737,12738,12739,12740,12741,12742, #12704
+12743,12744,12745,12746,12747,12748,12749,12750,12751,12752,12753,12754,12755,12756,12757,12758, #12720
+12759,12760,12761,12762,12763,12764,12765,12766,12767,12768,12769,12770,12771,12772,12773,12774, #12736
+12775,12776,12777,12778,4993,2175,12779,12780,12781,12782,12783,12784,12785,12786,4500,12787, #12752
+12788,12789,12790,12791,12792,12793,12794,12795,12796,12797,12798,12799,12800,12801,12802,12803, #12768
+12804,12805,12806,12807,12808,12809,12810,12811,12812,12813,12814,12815,12816,12817,12818,12819, #12784
+12820,12821,12822,12823,12824,12825,12826,4198,3967,12827,12828,12829,12830,12831,12832,12833, #12800
+12834,12835,12836,12837,12838,12839,12840,12841,12842,12843,12844,12845,12846,12847,12848,12849, #12816
+12850,12851,12852,12853,12854,12855,12856,12857,12858,12859,12860,12861,4199,12862,12863,12864, #12832
+12865,12866,12867,12868,12869,12870,12871,12872,12873,12874,12875,12876,12877,12878,12879,12880, #12848
+12881,12882,12883,12884,12885,12886,12887,4501,12888,12889,12890,12891,12892,12893,12894,12895, #12864
+12896,12897,12898,12899,12900,12901,12902,12903,12904,12905,12906,12907,12908,12909,12910,12911, #12880
+12912,4994,12913,12914,12915,12916,12917,12918,12919,12920,12921,12922,12923,12924,12925,12926, #12896
+12927,12928,12929,12930,12931,12932,12933,12934,12935,12936,12937,12938,12939,12940,12941,12942, #12912
+12943,12944,12945,12946,12947,12948,12949,12950,12951,12952,12953,12954,12955,12956,1772,12957, #12928
+12958,12959,12960,12961,12962,12963,12964,12965,12966,12967,12968,12969,12970,12971,12972,12973, #12944
+12974,12975,12976,12977,12978,12979,12980,12981,12982,12983,12984,12985,12986,12987,12988,12989, #12960
+12990,12991,12992,12993,12994,12995,12996,12997,4502,12998,4503,12999,13000,13001,13002,13003, #12976
+4504,13004,13005,13006,13007,13008,13009,13010,13011,13012,13013,13014,13015,13016,13017,13018, #12992
+13019,13020,13021,13022,13023,13024,13025,13026,13027,13028,13029,3449,13030,13031,13032,13033, #13008
+13034,13035,13036,13037,13038,13039,13040,13041,13042,13043,13044,13045,13046,13047,13048,13049, #13024
+13050,13051,13052,13053,13054,13055,13056,13057,13058,13059,13060,13061,13062,13063,13064,13065, #13040
+13066,13067,13068,13069,13070,13071,13072,13073,13074,13075,13076,13077,13078,13079,13080,13081, #13056
+13082,13083,13084,13085,13086,13087,13088,13089,13090,13091,13092,13093,13094,13095,13096,13097, #13072
+13098,13099,13100,13101,13102,13103,13104,13105,13106,13107,13108,13109,13110,13111,13112,13113, #13088
+13114,13115,13116,13117,13118,3968,13119,4995,13120,13121,13122,13123,13124,13125,13126,13127, #13104
+4505,13128,13129,13130,13131,13132,13133,13134,4996,4506,13135,13136,13137,13138,13139,4997, #13120
+13140,13141,13142,13143,13144,13145,13146,13147,13148,13149,13150,13151,13152,13153,13154,13155, #13136
+13156,13157,13158,13159,4998,13160,13161,13162,13163,13164,13165,13166,13167,13168,13169,13170, #13152
+13171,13172,13173,13174,13175,13176,4999,13177,13178,13179,13180,13181,13182,13183,13184,13185, #13168
+13186,13187,13188,13189,13190,13191,13192,13193,13194,13195,13196,13197,13198,13199,13200,13201, #13184
+13202,13203,13204,13205,13206,5000,13207,13208,13209,13210,13211,13212,13213,13214,13215,13216, #13200
+13217,13218,13219,13220,13221,13222,13223,13224,13225,13226,13227,4200,5001,13228,13229,13230, #13216
+13231,13232,13233,13234,13235,13236,13237,13238,13239,13240,3969,13241,13242,13243,13244,3970, #13232
+13245,13246,13247,13248,13249,13250,13251,13252,13253,13254,13255,13256,13257,13258,13259,13260, #13248
+13261,13262,13263,13264,13265,13266,13267,13268,3450,13269,13270,13271,13272,13273,13274,13275, #13264
+13276,5002,13277,13278,13279,13280,13281,13282,13283,13284,13285,13286,13287,13288,13289,13290, #13280
+13291,13292,13293,13294,13295,13296,13297,13298,13299,13300,13301,13302,3813,13303,13304,13305, #13296
+13306,13307,13308,13309,13310,13311,13312,13313,13314,13315,13316,13317,13318,13319,13320,13321, #13312
+13322,13323,13324,13325,13326,13327,13328,4507,13329,13330,13331,13332,13333,13334,13335,13336, #13328
+13337,13338,13339,13340,13341,5003,13342,13343,13344,13345,13346,13347,13348,13349,13350,13351, #13344
+13352,13353,13354,13355,13356,13357,13358,13359,13360,13361,13362,13363,13364,13365,13366,13367, #13360
+5004,13368,13369,13370,13371,13372,13373,13374,13375,13376,13377,13378,13379,13380,13381,13382, #13376
+13383,13384,13385,13386,13387,13388,13389,13390,13391,13392,13393,13394,13395,13396,13397,13398, #13392
+13399,13400,13401,13402,13403,13404,13405,13406,13407,13408,13409,13410,13411,13412,13413,13414, #13408
+13415,13416,13417,13418,13419,13420,13421,13422,13423,13424,13425,13426,13427,13428,13429,13430, #13424
+13431,13432,4508,13433,13434,13435,4201,13436,13437,13438,13439,13440,13441,13442,13443,13444, #13440
+13445,13446,13447,13448,13449,13450,13451,13452,13453,13454,13455,13456,13457,5005,13458,13459, #13456
+13460,13461,13462,13463,13464,13465,13466,13467,13468,13469,13470,4509,13471,13472,13473,13474, #13472
+13475,13476,13477,13478,13479,13480,13481,13482,13483,13484,13485,13486,13487,13488,13489,13490, #13488
+13491,13492,13493,13494,13495,13496,13497,13498,13499,13500,13501,13502,13503,13504,13505,13506, #13504
+13507,13508,13509,13510,13511,13512,13513,13514,13515,13516,13517,13518,13519,13520,13521,13522, #13520
+13523,13524,13525,13526,13527,13528,13529,13530,13531,13532,13533,13534,13535,13536,13537,13538, #13536
+13539,13540,13541,13542,13543,13544,13545,13546,13547,13548,13549,13550,13551,13552,13553,13554, #13552
+13555,13556,13557,13558,13559,13560,13561,13562,13563,13564,13565,13566,13567,13568,13569,13570, #13568
+13571,13572,13573,13574,13575,13576,13577,13578,13579,13580,13581,13582,13583,13584,13585,13586, #13584
+13587,13588,13589,13590,13591,13592,13593,13594,13595,13596,13597,13598,13599,13600,13601,13602, #13600
+13603,13604,13605,13606,13607,13608,13609,13610,13611,13612,13613,13614,13615,13616,13617,13618, #13616
+13619,13620,13621,13622,13623,13624,13625,13626,13627,13628,13629,13630,13631,13632,13633,13634, #13632
+13635,13636,13637,13638,13639,13640,13641,13642,5006,13643,13644,13645,13646,13647,13648,13649, #13648
+13650,13651,5007,13652,13653,13654,13655,13656,13657,13658,13659,13660,13661,13662,13663,13664, #13664
+13665,13666,13667,13668,13669,13670,13671,13672,13673,13674,13675,13676,13677,13678,13679,13680, #13680
+13681,13682,13683,13684,13685,13686,13687,13688,13689,13690,13691,13692,13693,13694,13695,13696, #13696
+13697,13698,13699,13700,13701,13702,13703,13704,13705,13706,13707,13708,13709,13710,13711,13712, #13712
+13713,13714,13715,13716,13717,13718,13719,13720,13721,13722,13723,13724,13725,13726,13727,13728, #13728
+13729,13730,13731,13732,13733,13734,13735,13736,13737,13738,13739,13740,13741,13742,13743,13744, #13744
+13745,13746,13747,13748,13749,13750,13751,13752,13753,13754,13755,13756,13757,13758,13759,13760, #13760
+13761,13762,13763,13764,13765,13766,13767,13768,13769,13770,13771,13772,13773,13774,3273,13775, #13776
+13776,13777,13778,13779,13780,13781,13782,13783,13784,13785,13786,13787,13788,13789,13790,13791, #13792
+13792,13793,13794,13795,13796,13797,13798,13799,13800,13801,13802,13803,13804,13805,13806,13807, #13808
+13808,13809,13810,13811,13812,13813,13814,13815,13816,13817,13818,13819,13820,13821,13822,13823, #13824
+13824,13825,13826,13827,13828,13829,13830,13831,13832,13833,13834,13835,13836,13837,13838,13839, #13840
+13840,13841,13842,13843,13844,13845,13846,13847,13848,13849,13850,13851,13852,13853,13854,13855, #13856
+13856,13857,13858,13859,13860,13861,13862,13863,13864,13865,13866,13867,13868,13869,13870,13871, #13872
+13872,13873,13874,13875,13876,13877,13878,13879,13880,13881,13882,13883,13884,13885,13886,13887, #13888
+13888,13889,13890,13891,13892,13893,13894,13895,13896,13897,13898,13899,13900,13901,13902,13903, #13904
+13904,13905,13906,13907,13908,13909,13910,13911,13912,13913,13914,13915,13916,13917,13918,13919, #13920
+13920,13921,13922,13923,13924,13925,13926,13927,13928,13929,13930,13931,13932,13933,13934,13935, #13936
+13936,13937,13938,13939,13940,13941,13942,13943,13944,13945,13946,13947,13948,13949,13950,13951, #13952
+13952,13953,13954,13955,13956,13957,13958,13959,13960,13961,13962,13963,13964,13965,13966,13967, #13968
+13968,13969,13970,13971,13972) #13973
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py
new file mode 100644
index 0000000..becce81
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/big5prober.py
@@ -0,0 +1,42 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import Big5DistributionAnalysis
+from .mbcssm import Big5SMModel
+
+
+class Big5Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(Big5SMModel)
+        self._mDistributionAnalyzer = Big5DistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "Big5"
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py
new file mode 100644
index 0000000..ffe892f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardetect.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python
+"""
+Script which takes one or more file paths and reports on their detected
+encodings
+
+Example::
+
+    % chardetect somefile someotherfile
+    somefile: windows-1252 with confidence 0.5
+    someotherfile: ascii with confidence 1.0
+
+If no paths are provided, it takes its input from stdin.
+
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+import argparse
+import sys
+from io import open
+
+from chardet import __version__
+from chardet.universaldetector import UniversalDetector
+
+
+def description_of(lines, name='stdin'):
+    """
+    Return a string describing the probable encoding of a file or
+    list of strings.
+
+    :param lines: The lines to get the encoding of.
+    :type lines: Iterable of bytes
+    :param name: Name of file or collection of lines
+    :type name: str
+    """
+    u = UniversalDetector()
+    for line in lines:
+        u.feed(line)
+    u.close()
+    result = u.result
+    if result['encoding']:
+        return '{0}: {1} with confidence {2}'.format(name, result['encoding'],
+                                                     result['confidence'])
+    else:
+        return '{0}: no result'.format(name)
+
+
+def main(argv=None):
+    '''
+    Handles command line arguments and gets things started.
+
+    :param argv: List of arguments, as if specified on the command-line.
+                 If None, ``sys.argv[1:]`` is used instead.
+    :type argv: list of str
+    '''
+    # Get command line arguments
+    parser = argparse.ArgumentParser(
+        description="Takes one or more file paths and reports their detected \
+                     encodings",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+        conflict_handler='resolve')
+    parser.add_argument('input',
+                        help='File whose encoding we would like to determine.',
+                        type=argparse.FileType('rb'), nargs='*',
+                        default=[sys.stdin])
+    parser.add_argument('--version', action='version',
+                        version='%(prog)s {0}'.format(__version__))
+    args = parser.parse_args(argv)
+
+    for f in args.input:
+        if f.isatty():
+            print("You are running chardetect interactively. Press " +
+                  "CTRL-D twice at the start of a blank line to signal the " +
+                  "end of your input. If you want help, run chardetect " +
+                  "--help\n", file=sys.stderr)
+        print(description_of(f, f.name))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py
new file mode 100644
index 0000000..4e64a00
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/chardistribution.py
@@ -0,0 +1,231 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .euctwfreq import (EUCTWCharToFreqOrder, EUCTW_TABLE_SIZE,
+                        EUCTW_TYPICAL_DISTRIBUTION_RATIO)
+from .euckrfreq import (EUCKRCharToFreqOrder, EUCKR_TABLE_SIZE,
+                        EUCKR_TYPICAL_DISTRIBUTION_RATIO)
+from .gb2312freq import (GB2312CharToFreqOrder, GB2312_TABLE_SIZE,
+                         GB2312_TYPICAL_DISTRIBUTION_RATIO)
+from .big5freq import (Big5CharToFreqOrder, BIG5_TABLE_SIZE,
+                       BIG5_TYPICAL_DISTRIBUTION_RATIO)
+from .jisfreq import (JISCharToFreqOrder, JIS_TABLE_SIZE,
+                      JIS_TYPICAL_DISTRIBUTION_RATIO)
+from .compat import wrap_ord
+
+ENOUGH_DATA_THRESHOLD = 1024
+SURE_YES = 0.99
+SURE_NO = 0.01
+MINIMUM_DATA_THRESHOLD = 3
+
+
+class CharDistributionAnalysis:
+    def __init__(self):
+        # Mapping table to get frequency order from char order (get from
+        # GetOrder())
+        self._mCharToFreqOrder = None
+        self._mTableSize = None  # Size of above table
+        # This is a constant value which varies from language to language,
+        # used in calculating confidence.  See
+        # http://www.mozilla.org/projects/intl/UniversalCharsetDetection.html
+        # for further detail.
+        self._mTypicalDistributionRatio = None
+        self.reset()
+
+    def reset(self):
+        """reset analyser, clear any state"""
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._mDone = False
+        self._mTotalChars = 0  # Total characters encountered
+        # The number of characters whose frequency order is less than 512
+        self._mFreqChars = 0
+
+    def feed(self, aBuf, aCharLen):
+        """feed a character with known length"""
+        if aCharLen == 2:
+            # we only care about 2-bytes character in our distribution analysis
+            order = self.get_order(aBuf)
+        else:
+            order = -1
+        if order >= 0:
+            self._mTotalChars += 1
+            # order is valid
+            if order < self._mTableSize:
+                if 512 > self._mCharToFreqOrder[order]:
+                    self._mFreqChars += 1
+
+    def get_confidence(self):
+        """return confidence based on existing data"""
+        # if we didn't receive any character in our consideration range,
+        # return negative answer
+        if self._mTotalChars <= 0 or self._mFreqChars <= MINIMUM_DATA_THRESHOLD:
+            return SURE_NO
+
+        if self._mTotalChars != self._mFreqChars:
+            r = (self._mFreqChars / ((self._mTotalChars - self._mFreqChars)
+                 * self._mTypicalDistributionRatio))
+            if r < SURE_YES:
+                return r
+
+        # normalize confidence (we don't want to be 100% sure)
+        return SURE_YES
+
+    def got_enough_data(self):
+        # It is not necessary to receive all data to draw conclusion.
+        # For charset detection, certain amount of data is enough
+        return self._mTotalChars > ENOUGH_DATA_THRESHOLD
+
+    def get_order(self, aBuf):
+        # We do not handle characters based on the original encoding string,
+        # but convert this encoding string to a number, here called order.
+        # This allows multiple encodings of a language to share one frequency
+        # table.
+        return -1
+
+
+class EUCTWDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = EUCTWCharToFreqOrder
+        self._mTableSize = EUCTW_TABLE_SIZE
+        self._mTypicalDistributionRatio = EUCTW_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-TW encoding, we are interested
+        #   first  byte range: 0xc4 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = wrap_ord(aBuf[0])
+        if first_char >= 0xC4:
+            return 94 * (first_char - 0xC4) + wrap_ord(aBuf[1]) - 0xA1
+        else:
+            return -1
+
+
+class EUCKRDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = EUCKRCharToFreqOrder
+        self._mTableSize = EUCKR_TABLE_SIZE
+        self._mTypicalDistributionRatio = EUCKR_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-KR encoding, we are interested
+        #   first  byte range: 0xb0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char = wrap_ord(aBuf[0])
+        if first_char >= 0xB0:
+            return 94 * (first_char - 0xB0) + wrap_ord(aBuf[1]) - 0xA1
+        else:
+            return -1
+
+
+class GB2312DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = GB2312CharToFreqOrder
+        self._mTableSize = GB2312_TABLE_SIZE
+        self._mTypicalDistributionRatio = GB2312_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for GB2312 encoding, we are interested
+        #  first  byte range: 0xb0 -- 0xfe
+        #  second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if (first_char >= 0xB0) and (second_char >= 0xA1):
+            return 94 * (first_char - 0xB0) + second_char - 0xA1
+        else:
+            return -1
+
+
+class Big5DistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = Big5CharToFreqOrder
+        self._mTableSize = BIG5_TABLE_SIZE
+        self._mTypicalDistributionRatio = BIG5_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for big5 encoding, we are interested
+        #   first  byte range: 0xa4 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e , 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if first_char >= 0xA4:
+            if second_char >= 0xA1:
+                return 157 * (first_char - 0xA4) + second_char - 0xA1 + 63
+            else:
+                return 157 * (first_char - 0xA4) + second_char - 0x40
+        else:
+            return -1
+
+
+class SJISDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = JISCharToFreqOrder
+        self._mTableSize = JIS_TABLE_SIZE
+        self._mTypicalDistributionRatio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for sjis encoding, we are interested
+        #   first  byte range: 0x81 -- 0x9f , 0xe0 -- 0xfe
+        #   second byte range: 0x40 -- 0x7e,  0x81 -- oxfe
+        # no validation needed here. State machine has done that
+        first_char, second_char = wrap_ord(aBuf[0]), wrap_ord(aBuf[1])
+        if (first_char >= 0x81) and (first_char <= 0x9F):
+            order = 188 * (first_char - 0x81)
+        elif (first_char >= 0xE0) and (first_char <= 0xEF):
+            order = 188 * (first_char - 0xE0 + 31)
+        else:
+            return -1
+        order = order + second_char - 0x40
+        if second_char > 0x7F:
+            order = -1
+        return order
+
+
+class EUCJPDistributionAnalysis(CharDistributionAnalysis):
+    def __init__(self):
+        CharDistributionAnalysis.__init__(self)
+        self._mCharToFreqOrder = JISCharToFreqOrder
+        self._mTableSize = JIS_TABLE_SIZE
+        self._mTypicalDistributionRatio = JIS_TYPICAL_DISTRIBUTION_RATIO
+
+    def get_order(self, aBuf):
+        # for euc-JP encoding, we are interested
+        #   first  byte range: 0xa0 -- 0xfe
+        #   second byte range: 0xa1 -- 0xfe
+        # no validation needed here. State machine has done that
+        char = wrap_ord(aBuf[0])
+        if char >= 0xA0:
+            return 94 * (char - 0xA1) + wrap_ord(aBuf[1]) - 0xa1
+        else:
+            return -1
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py
new file mode 100644
index 0000000..85e7a1c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetgroupprober.py
@@ -0,0 +1,106 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+# 
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+# 
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import sys
+from .charsetprober import CharSetProber
+
+
+class CharSetGroupProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mActiveNum = 0
+        self._mProbers = []
+        self._mBestGuessProber = None
+
+    def reset(self):
+        CharSetProber.reset(self)
+        self._mActiveNum = 0
+        for prober in self._mProbers:
+            if prober:
+                prober.reset()
+                prober.active = True
+                self._mActiveNum += 1
+        self._mBestGuessProber = None
+
+    def get_charset_name(self):
+        if not self._mBestGuessProber:
+            self.get_confidence()
+            if not self._mBestGuessProber:
+                return None
+#                self._mBestGuessProber = self._mProbers[0]
+        return self._mBestGuessProber.get_charset_name()
+
+    def feed(self, aBuf):
+        for prober in self._mProbers:
+            if not prober:
+                continue
+            if not prober.active:
+                continue
+            st = prober.feed(aBuf)
+            if not st:
+                continue
+            if st == constants.eFoundIt:
+                self._mBestGuessProber = prober
+                return self.get_state()
+            elif st == constants.eNotMe:
+                prober.active = False
+                self._mActiveNum -= 1
+                if self._mActiveNum <= 0:
+                    self._mState = constants.eNotMe
+                    return self.get_state()
+        return self.get_state()
+
+    def get_confidence(self):
+        st = self.get_state()
+        if st == constants.eFoundIt:
+            return 0.99
+        elif st == constants.eNotMe:
+            return 0.01
+        bestConf = 0.0
+        self._mBestGuessProber = None
+        for prober in self._mProbers:
+            if not prober:
+                continue
+            if not prober.active:
+                if constants._debug:
+                    sys.stderr.write(prober.get_charset_name()
+                                     + ' not active\n')
+                continue
+            cf = prober.get_confidence()
+            if constants._debug:
+                sys.stderr.write('%s confidence = %s\n' %
+                                 (prober.get_charset_name(), cf))
+            if bestConf < cf:
+                bestConf = cf
+                self._mBestGuessProber = prober
+        if not self._mBestGuessProber:
+            return 0.0
+        return bestConf
+#        else:
+#            self._mBestGuessProber = self._mProbers[0]
+#            return self._mBestGuessProber.get_confidence()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py
new file mode 100644
index 0000000..9758171
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/charsetprober.py
@@ -0,0 +1,62 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import re
+
+
+class CharSetProber:
+    def __init__(self):
+        pass
+
+    def reset(self):
+        self._mState = constants.eDetecting
+
+    def get_charset_name(self):
+        return None
+
+    def feed(self, aBuf):
+        pass
+
+    def get_state(self):
+        return self._mState
+
+    def get_confidence(self):
+        return 0.0
+
+    def filter_high_bit_only(self, aBuf):
+        aBuf = re.sub(b'([\x00-\x7F])+', b' ', aBuf)
+        return aBuf
+
+    def filter_without_english_letters(self, aBuf):
+        aBuf = re.sub(b'([A-Za-z])+', b' ', aBuf)
+        return aBuf
+
+    def filter_with_english_letters(self, aBuf):
+        # TODO
+        return aBuf
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py
new file mode 100644
index 0000000..8dd8c91
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/codingstatemachine.py
@@ -0,0 +1,61 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart
+from .compat import wrap_ord
+
+
+class CodingStateMachine:
+    def __init__(self, sm):
+        self._mModel = sm
+        self._mCurrentBytePos = 0
+        self._mCurrentCharLen = 0
+        self.reset()
+
+    def reset(self):
+        self._mCurrentState = eStart
+
+    def next_state(self, c):
+        # for each byte we get its class
+        # if it is first byte, we also get byte length
+        # PY3K: aBuf is a byte stream, so c is an int, not a byte
+        byteCls = self._mModel['classTable'][wrap_ord(c)]
+        if self._mCurrentState == eStart:
+            self._mCurrentBytePos = 0
+            self._mCurrentCharLen = self._mModel['charLenTable'][byteCls]
+        # from byte's class and stateTable, we get its next state
+        curr_state = (self._mCurrentState * self._mModel['classFactor']
+                      + byteCls)
+        self._mCurrentState = self._mModel['stateTable'][curr_state]
+        self._mCurrentBytePos += 1
+        return self._mCurrentState
+
+    def get_current_charlen(self):
+        return self._mCurrentCharLen
+
+    def get_coding_state_machine(self):
+        return self._mModel['name']
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py
new file mode 100644
index 0000000..d9e30ad
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/compat.py
@@ -0,0 +1,34 @@
+######################## BEGIN LICENSE BLOCK ########################
+# Contributor(s):
+#   Ian Cordasco - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+
+
+if sys.version_info < (3, 0):
+    base_str = (str, unicode)
+else:
+    base_str = (bytes, str)
+
+
+def wrap_ord(a):
+    if sys.version_info < (3, 0) and isinstance(a, base_str):
+        return ord(a)
+    else:
+        return a
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py
new file mode 100644
index 0000000..e4d148b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/constants.py
@@ -0,0 +1,39 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+_debug = 0
+
+eDetecting = 0
+eFoundIt = 1
+eNotMe = 2
+
+eStart = 0
+eError = 1
+eItsMe = 2
+
+SHORTCUT_THRESHOLD = 0.95
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py
new file mode 100644
index 0000000..ff4272f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/cp949prober.py
@@ -0,0 +1,44 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCKRDistributionAnalysis
+from .mbcssm import CP949SMModel
+
+
+class CP949Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(CP949SMModel)
+        # NOTE: CP949 is a superset of EUC-KR, so the distribution should be
+        #       not different.
+        self._mDistributionAnalyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "CP949"
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py
new file mode 100644
index 0000000..80a844f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escprober.py
@@ -0,0 +1,86 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+from .escsm import (HZSMModel, ISO2022CNSMModel, ISO2022JPSMModel,
+                    ISO2022KRSMModel)
+from .charsetprober import CharSetProber
+from .codingstatemachine import CodingStateMachine
+from .compat import wrap_ord
+
+
+class EscCharSetProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mCodingSM = [
+            CodingStateMachine(HZSMModel),
+            CodingStateMachine(ISO2022CNSMModel),
+            CodingStateMachine(ISO2022JPSMModel),
+            CodingStateMachine(ISO2022KRSMModel)
+        ]
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        for codingSM in self._mCodingSM:
+            if not codingSM:
+                continue
+            codingSM.active = True
+            codingSM.reset()
+        self._mActiveSM = len(self._mCodingSM)
+        self._mDetectedCharset = None
+
+    def get_charset_name(self):
+        return self._mDetectedCharset
+
+    def get_confidence(self):
+        if self._mDetectedCharset:
+            return 0.99
+        else:
+            return 0.00
+
+    def feed(self, aBuf):
+        for c in aBuf:
+            # PY3K: aBuf is a byte array, so c is an int, not a byte
+            for codingSM in self._mCodingSM:
+                if not codingSM:
+                    continue
+                if not codingSM.active:
+                    continue
+                codingState = codingSM.next_state(wrap_ord(c))
+                if codingState == constants.eError:
+                    codingSM.active = False
+                    self._mActiveSM -= 1
+                    if self._mActiveSM <= 0:
+                        self._mState = constants.eNotMe
+                        return self.get_state()
+                elif codingState == constants.eItsMe:
+                    self._mState = constants.eFoundIt
+                    self._mDetectedCharset = codingSM.get_coding_state_machine()  # nopep8
+                    return self.get_state()
+
+        return self.get_state()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py
new file mode 100644
index 0000000..bd302b4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/escsm.py
@@ -0,0 +1,242 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart, eError, eItsMe
+
+HZ_cls = (
+1,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,0,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,4,0,5,2,0,  # 78 - 7f
+1,1,1,1,1,1,1,1,  # 80 - 87
+1,1,1,1,1,1,1,1,  # 88 - 8f
+1,1,1,1,1,1,1,1,  # 90 - 97
+1,1,1,1,1,1,1,1,  # 98 - 9f
+1,1,1,1,1,1,1,1,  # a0 - a7
+1,1,1,1,1,1,1,1,  # a8 - af
+1,1,1,1,1,1,1,1,  # b0 - b7
+1,1,1,1,1,1,1,1,  # b8 - bf
+1,1,1,1,1,1,1,1,  # c0 - c7
+1,1,1,1,1,1,1,1,  # c8 - cf
+1,1,1,1,1,1,1,1,  # d0 - d7
+1,1,1,1,1,1,1,1,  # d8 - df
+1,1,1,1,1,1,1,1,  # e0 - e7
+1,1,1,1,1,1,1,1,  # e8 - ef
+1,1,1,1,1,1,1,1,  # f0 - f7
+1,1,1,1,1,1,1,1,  # f8 - ff
+)
+
+HZ_st = (
+eStart,eError,     3,eStart,eStart,eStart,eError,eError,# 00-07
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 08-0f
+eItsMe,eItsMe,eError,eError,eStart,eStart,     4,eError,# 10-17
+     5,eError,     6,eError,     5,     5,     4,eError,# 18-1f
+     4,eError,     4,     4,     4,eError,     4,eError,# 20-27
+     4,eItsMe,eStart,eStart,eStart,eStart,eStart,eStart,# 28-2f
+)
+
+HZCharLenTable = (0, 0, 0, 0, 0, 0)
+
+HZSMModel = {'classTable': HZ_cls,
+             'classFactor': 6,
+             'stateTable': HZ_st,
+             'charLenTable': HZCharLenTable,
+             'name': "HZ-GB-2312"}
+
+ISO2022CN_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,0,0,0,0,  # 20 - 27
+0,3,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,4,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022CN_st = (
+eStart,     3,eError,eStart,eStart,eStart,eStart,eStart,# 00-07
+eStart,eError,eError,eError,eError,eError,eError,eError,# 08-0f
+eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,# 10-17
+eItsMe,eItsMe,eItsMe,eError,eError,eError,     4,eError,# 18-1f
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 20-27
+     5,     6,eError,eError,eError,eError,eError,eError,# 28-2f
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 30-37
+eError,eError,eError,eError,eError,eItsMe,eError,eStart,# 38-3f
+)
+
+ISO2022CNCharLenTable = (0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022CNSMModel = {'classTable': ISO2022CN_cls,
+                    'classFactor': 9,
+                    'stateTable': ISO2022CN_st,
+                    'charLenTable': ISO2022CNCharLenTable,
+                    'name': "ISO-2022-CN"}
+
+ISO2022JP_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,2,2,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,7,0,0,0,  # 20 - 27
+3,0,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+6,0,4,0,8,0,0,0,  # 40 - 47
+0,9,5,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022JP_st = (
+eStart,     3,eError,eStart,eStart,eStart,eStart,eStart,# 00-07
+eStart,eStart,eError,eError,eError,eError,eError,eError,# 08-0f
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 10-17
+eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,# 18-1f
+eError,     5,eError,eError,eError,     4,eError,eError,# 20-27
+eError,eError,eError,     6,eItsMe,eError,eItsMe,eError,# 28-2f
+eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,# 30-37
+eError,eError,eError,eItsMe,eError,eError,eError,eError,# 38-3f
+eError,eError,eError,eError,eItsMe,eError,eStart,eStart,# 40-47
+)
+
+ISO2022JPCharLenTable = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+
+ISO2022JPSMModel = {'classTable': ISO2022JP_cls,
+                    'classFactor': 10,
+                    'stateTable': ISO2022JP_st,
+                    'charLenTable': ISO2022JPCharLenTable,
+                    'name': "ISO-2022-JP"}
+
+ISO2022KR_cls = (
+2,0,0,0,0,0,0,0,  # 00 - 07
+0,0,0,0,0,0,0,0,  # 08 - 0f
+0,0,0,0,0,0,0,0,  # 10 - 17
+0,0,0,1,0,0,0,0,  # 18 - 1f
+0,0,0,0,3,0,0,0,  # 20 - 27
+0,4,0,0,0,0,0,0,  # 28 - 2f
+0,0,0,0,0,0,0,0,  # 30 - 37
+0,0,0,0,0,0,0,0,  # 38 - 3f
+0,0,0,5,0,0,0,0,  # 40 - 47
+0,0,0,0,0,0,0,0,  # 48 - 4f
+0,0,0,0,0,0,0,0,  # 50 - 57
+0,0,0,0,0,0,0,0,  # 58 - 5f
+0,0,0,0,0,0,0,0,  # 60 - 67
+0,0,0,0,0,0,0,0,  # 68 - 6f
+0,0,0,0,0,0,0,0,  # 70 - 77
+0,0,0,0,0,0,0,0,  # 78 - 7f
+2,2,2,2,2,2,2,2,  # 80 - 87
+2,2,2,2,2,2,2,2,  # 88 - 8f
+2,2,2,2,2,2,2,2,  # 90 - 97
+2,2,2,2,2,2,2,2,  # 98 - 9f
+2,2,2,2,2,2,2,2,  # a0 - a7
+2,2,2,2,2,2,2,2,  # a8 - af
+2,2,2,2,2,2,2,2,  # b0 - b7
+2,2,2,2,2,2,2,2,  # b8 - bf
+2,2,2,2,2,2,2,2,  # c0 - c7
+2,2,2,2,2,2,2,2,  # c8 - cf
+2,2,2,2,2,2,2,2,  # d0 - d7
+2,2,2,2,2,2,2,2,  # d8 - df
+2,2,2,2,2,2,2,2,  # e0 - e7
+2,2,2,2,2,2,2,2,  # e8 - ef
+2,2,2,2,2,2,2,2,  # f0 - f7
+2,2,2,2,2,2,2,2,  # f8 - ff
+)
+
+ISO2022KR_st = (
+eStart,     3,eError,eStart,eStart,eStart,eError,eError,# 00-07
+eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,# 08-0f
+eItsMe,eItsMe,eError,eError,eError,     4,eError,eError,# 10-17
+eError,eError,eError,eError,     5,eError,eError,eError,# 18-1f
+eError,eError,eError,eItsMe,eStart,eStart,eStart,eStart,# 20-27
+)
+
+ISO2022KRCharLenTable = (0, 0, 0, 0, 0, 0)
+
+ISO2022KRSMModel = {'classTable': ISO2022KR_cls,
+                    'classFactor': 6,
+                    'stateTable': ISO2022KR_st,
+                    'charLenTable': ISO2022KRCharLenTable,
+                    'name': "ISO-2022-KR"}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py
new file mode 100644
index 0000000..8e64fdc
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/eucjpprober.py
@@ -0,0 +1,90 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCJPDistributionAnalysis
+from .jpcntx import EUCJPContextAnalysis
+from .mbcssm import EUCJPSMModel
+
+
+class EUCJPProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCJPSMModel)
+        self._mDistributionAnalyzer = EUCJPDistributionAnalysis()
+        self._mContextAnalyzer = EUCJPContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        MultiByteCharSetProber.reset(self)
+        self._mContextAnalyzer.reset()
+
+    def get_charset_name(self):
+        return "EUC-JP"
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            # PY3K: aBuf is a byte array, so aBuf[i] is an int, not a byte
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mContextAnalyzer.feed(self._mLastChar, charLen)
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mContextAnalyzer.feed(aBuf[i - 1:i + 1], charLen)
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mContextAnalyzer.got_enough_data() and
+               (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        contxtCf = self._mContextAnalyzer.get_confidence()
+        distribCf = self._mDistributionAnalyzer.get_confidence()
+        return max(contxtCf, distribCf)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py
new file mode 100644
index 0000000..a179e4c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrfreq.py
@@ -0,0 +1,596 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+
+# 128  --> 0.79
+# 256  --> 0.92
+# 512  --> 0.986
+# 1024 --> 0.99944
+# 2048 --> 0.99999
+#
+# Idea Distribution Ratio = 0.98653 / (1-0.98653) = 73.24
+# Random Distribution Ration = 512 / (2350-512) = 0.279.
+# 
+# Typical Distribution Ratio  
+
+EUCKR_TYPICAL_DISTRIBUTION_RATIO = 6.0
+
+EUCKR_TABLE_SIZE = 2352
+
+# Char to FreqOrder table , 
+EUCKRCharToFreqOrder = ( \
+  13, 130, 120,1396, 481,1719,1720, 328, 609, 212,1721, 707, 400, 299,1722,  87,
+1397,1723, 104, 536,1117,1203,1724,1267, 685,1268, 508,1725,1726,1727,1728,1398,
+1399,1729,1730,1731, 141, 621, 326,1057, 368,1732, 267, 488,  20,1733,1269,1734,
+ 945,1400,1735,  47, 904,1270,1736,1737, 773, 248,1738, 409, 313, 786, 429,1739,
+ 116, 987, 813,1401, 683,  75,1204, 145,1740,1741,1742,1743,  16, 847, 667, 622,
+ 708,1744,1745,1746, 966, 787, 304, 129,1747,  60, 820, 123, 676,1748,1749,1750,
+1751, 617,1752, 626,1753,1754,1755,1756, 653,1757,1758,1759,1760,1761,1762, 856,
+ 344,1763,1764,1765,1766,  89, 401, 418, 806, 905, 848,1767,1768,1769, 946,1205,
+ 709,1770,1118,1771, 241,1772,1773,1774,1271,1775, 569,1776, 999,1777,1778,1779,
+1780, 337, 751,1058,  28, 628, 254,1781, 177, 906, 270, 349, 891,1079,1782,  19,
+1783, 379,1784, 315,1785, 629, 754,1402, 559,1786, 636, 203,1206,1787, 710, 567,
+1788, 935, 814,1789,1790,1207, 766, 528,1791,1792,1208,1793,1794,1795,1796,1797,
+1403,1798,1799, 533,1059,1404,1405,1156,1406, 936, 884,1080,1800, 351,1801,1802,
+1803,1804,1805, 801,1806,1807,1808,1119,1809,1157, 714, 474,1407,1810, 298, 899,
+ 885,1811,1120, 802,1158,1812, 892,1813,1814,1408, 659,1815,1816,1121,1817,1818,
+1819,1820,1821,1822, 319,1823, 594, 545,1824, 815, 937,1209,1825,1826, 573,1409,
+1022,1827,1210,1828,1829,1830,1831,1832,1833, 556, 722, 807,1122,1060,1834, 697,
+1835, 900, 557, 715,1836,1410, 540,1411, 752,1159, 294, 597,1211, 976, 803, 770,
+1412,1837,1838,  39, 794,1413, 358,1839, 371, 925,1840, 453, 661, 788, 531, 723,
+ 544,1023,1081, 869,  91,1841, 392, 430, 790, 602,1414, 677,1082, 457,1415,1416,
+1842,1843, 475, 327,1024,1417, 795, 121,1844, 733, 403,1418,1845,1846,1847, 300,
+ 119, 711,1212, 627,1848,1272, 207,1849,1850, 796,1213, 382,1851, 519,1852,1083,
+ 893,1853,1854,1855, 367, 809, 487, 671,1856, 663,1857,1858, 956, 471, 306, 857,
+1859,1860,1160,1084,1861,1862,1863,1864,1865,1061,1866,1867,1868,1869,1870,1871,
+ 282,  96, 574,1872, 502,1085,1873,1214,1874, 907,1875,1876, 827, 977,1419,1420,
+1421, 268,1877,1422,1878,1879,1880, 308,1881,   2, 537,1882,1883,1215,1884,1885,
+ 127, 791,1886,1273,1423,1887,  34, 336, 404, 643,1888, 571, 654, 894, 840,1889,
+   0, 886,1274, 122, 575, 260, 908, 938,1890,1275, 410, 316,1891,1892, 100,1893,
+1894,1123,  48,1161,1124,1025,1895, 633, 901,1276,1896,1897, 115, 816,1898, 317,
+1899, 694,1900, 909, 734,1424, 572, 866,1425, 691,  85, 524,1010, 543, 394, 841,
+1901,1902,1903,1026,1904,1905,1906,1907,1908,1909,  30, 451, 651, 988, 310,1910,
+1911,1426, 810,1216,  93,1912,1913,1277,1217,1914, 858, 759,  45,  58, 181, 610,
+ 269,1915,1916, 131,1062, 551, 443,1000, 821,1427, 957, 895,1086,1917,1918, 375,
+1919, 359,1920, 687,1921, 822,1922, 293,1923,1924,  40, 662, 118, 692,  29, 939,
+ 887, 640, 482, 174,1925,  69,1162, 728,1428, 910,1926,1278,1218,1279, 386, 870,
+ 217, 854,1163, 823,1927,1928,1929,1930, 834,1931,  78,1932, 859,1933,1063,1934,
+1935,1936,1937, 438,1164, 208, 595,1938,1939,1940,1941,1219,1125,1942, 280, 888,
+1429,1430,1220,1431,1943,1944,1945,1946,1947,1280, 150, 510,1432,1948,1949,1950,
+1951,1952,1953,1954,1011,1087,1955,1433,1043,1956, 881,1957, 614, 958,1064,1065,
+1221,1958, 638,1001, 860, 967, 896,1434, 989, 492, 553,1281,1165,1959,1282,1002,
+1283,1222,1960,1961,1962,1963,  36, 383, 228, 753, 247, 454,1964, 876, 678,1965,
+1966,1284, 126, 464, 490, 835, 136, 672, 529, 940,1088,1435, 473,1967,1968, 467,
+  50, 390, 227, 587, 279, 378, 598, 792, 968, 240, 151, 160, 849, 882,1126,1285,
+ 639,1044, 133, 140, 288, 360, 811, 563,1027, 561, 142, 523,1969,1970,1971,   7,
+ 103, 296, 439, 407, 506, 634, 990,1972,1973,1974,1975, 645,1976,1977,1978,1979,
+1980,1981, 236,1982,1436,1983,1984,1089, 192, 828, 618, 518,1166, 333,1127,1985,
+ 818,1223,1986,1987,1988,1989,1990,1991,1992,1993, 342,1128,1286, 746, 842,1994,
+1995, 560, 223,1287,  98,   8, 189, 650, 978,1288,1996,1437,1997,  17, 345, 250,
+ 423, 277, 234, 512, 226,  97, 289,  42, 167,1998, 201,1999,2000, 843, 836, 824,
+ 532, 338, 783,1090, 182, 576, 436,1438,1439, 527, 500,2001, 947, 889,2002,2003,
+2004,2005, 262, 600, 314, 447,2006, 547,2007, 693, 738,1129,2008,  71,1440, 745,
+ 619, 688,2009, 829,2010,2011, 147,2012,  33, 948,2013,2014,  74, 224,2015,  61,
+ 191, 918, 399, 637,2016,1028,1130, 257, 902,2017,2018,2019,2020,2021,2022,2023,
+2024,2025,2026, 837,2027,2028,2029,2030, 179, 874, 591,  52, 724, 246,2031,2032,
+2033,2034,1167, 969,2035,1289, 630, 605, 911,1091,1168,2036,2037,2038,1441, 912,
+2039, 623,2040,2041, 253,1169,1290,2042,1442, 146, 620, 611, 577, 433,2043,1224,
+ 719,1170, 959, 440, 437, 534,  84, 388, 480,1131, 159, 220, 198, 679,2044,1012,
+ 819,1066,1443, 113,1225, 194, 318,1003,1029,2045,2046,2047,2048,1067,2049,2050,
+2051,2052,2053,  59, 913, 112,2054, 632,2055, 455, 144, 739,1291,2056, 273, 681,
+ 499,2057, 448,2058,2059, 760,2060,2061, 970, 384, 169, 245,1132,2062,2063, 414,
+1444,2064,2065,  41, 235,2066, 157, 252, 877, 568, 919, 789, 580,2067, 725,2068,
+2069,1292,2070,2071,1445,2072,1446,2073,2074,  55, 588,  66,1447, 271,1092,2075,
+1226,2076, 960,1013, 372,2077,2078,2079,2080,2081,1293,2082,2083,2084,2085, 850,
+2086,2087,2088,2089,2090, 186,2091,1068, 180,2092,2093,2094, 109,1227, 522, 606,
+2095, 867,1448,1093, 991,1171, 926, 353,1133,2096, 581,2097,2098,2099,1294,1449,
+1450,2100, 596,1172,1014,1228,2101,1451,1295,1173,1229,2102,2103,1296,1134,1452,
+ 949,1135,2104,2105,1094,1453,1454,1455,2106,1095,2107,2108,2109,2110,2111,2112,
+2113,2114,2115,2116,2117, 804,2118,2119,1230,1231, 805,1456, 405,1136,2120,2121,
+2122,2123,2124, 720, 701,1297, 992,1457, 927,1004,2125,2126,2127,2128,2129,2130,
+  22, 417,2131, 303,2132, 385,2133, 971, 520, 513,2134,1174,  73,1096, 231, 274,
+ 962,1458, 673,2135,1459,2136, 152,1137,2137,2138,2139,2140,1005,1138,1460,1139,
+2141,2142,2143,2144,  11, 374, 844,2145, 154,1232,  46,1461,2146, 838, 830, 721,
+1233, 106,2147,  90, 428, 462, 578, 566,1175, 352,2148,2149, 538,1234, 124,1298,
+2150,1462, 761, 565,2151, 686,2152, 649,2153,  72, 173,2154, 460, 415,2155,1463,
+2156,1235, 305,2157,2158,2159,2160,2161,2162, 579,2163,2164,2165,2166,2167, 747,
+2168,2169,2170,2171,1464, 669,2172,2173,2174,2175,2176,1465,2177,  23, 530, 285,
+2178, 335, 729,2179, 397,2180,2181,2182,1030,2183,2184, 698,2185,2186, 325,2187,
+2188, 369,2189, 799,1097,1015, 348,2190,1069, 680,2191, 851,1466,2192,2193,  10,
+2194, 613, 424,2195, 979, 108, 449, 589,  27, 172,  81,1031,  80, 774, 281, 350,
+1032, 525, 301, 582,1176,2196, 674,1045,2197,2198,1467, 730, 762,2199,2200,2201,
+2202,1468,2203, 993,2204,2205, 266,1070, 963,1140,2206,2207,2208, 664,1098, 972,
+2209,2210,2211,1177,1469,1470, 871,2212,2213,2214,2215,2216,1471,2217,2218,2219,
+2220,2221,2222,2223,2224,2225,2226,2227,1472,1236,2228,2229,2230,2231,2232,2233,
+2234,2235,1299,2236,2237, 200,2238, 477, 373,2239,2240, 731, 825, 777,2241,2242,
+2243, 521, 486, 548,2244,2245,2246,1473,1300,  53, 549, 137, 875,  76, 158,2247,
+1301,1474, 469, 396,1016, 278, 712,2248, 321, 442, 503, 767, 744, 941,1237,1178,
+1475,2249,  82, 178,1141,1179, 973,2250,1302,2251, 297,2252,2253, 570,2254,2255,
+2256,  18, 450, 206,2257, 290, 292,1142,2258, 511, 162,  99, 346, 164, 735,2259,
+1476,1477,   4, 554, 343, 798,1099,2260,1100,2261,  43, 171,1303, 139, 215,2262,
+2263, 717, 775,2264,1033, 322, 216,2265, 831,2266, 149,2267,1304,2268,2269, 702,
+1238, 135, 845, 347, 309,2270, 484,2271, 878, 655, 238,1006,1478,2272,  67,2273,
+ 295,2274,2275, 461,2276, 478, 942, 412,2277,1034,2278,2279,2280, 265,2281, 541,
+2282,2283,2284,2285,2286,  70, 852,1071,2287,2288,2289,2290,  21,  56, 509, 117,
+ 432,2291,2292, 331, 980, 552,1101, 148, 284, 105, 393,1180,1239, 755,2293, 187,
+2294,1046,1479,2295, 340,2296,  63,1047, 230,2297,2298,1305, 763,1306, 101, 800,
+ 808, 494,2299,2300,2301, 903,2302,  37,1072,  14,   5,2303,  79, 675,2304, 312,
+2305,2306,2307,2308,2309,1480,   6,1307,2310,2311,2312,   1, 470,  35,  24, 229,
+2313, 695, 210,  86, 778,  15, 784, 592, 779,  32,  77, 855, 964,2314, 259,2315,
+ 501, 380,2316,2317,  83, 981, 153, 689,1308,1481,1482,1483,2318,2319, 716,1484,
+2320,2321,2322,2323,2324,2325,1485,2326,2327, 128,  57,  68, 261,1048, 211, 170,
+1240,  31,2328,  51, 435, 742,2329,2330,2331, 635,2332, 264, 456,2333,2334,2335,
+ 425,2336,1486, 143, 507, 263, 943,2337, 363, 920,1487, 256,1488,1102, 243, 601,
+1489,2338,2339,2340,2341,2342,2343,2344, 861,2345,2346,2347,2348,2349,2350, 395,
+2351,1490,1491,  62, 535, 166, 225,2352,2353, 668, 419,1241, 138, 604, 928,2354,
+1181,2355,1492,1493,2356,2357,2358,1143,2359, 696,2360, 387, 307,1309, 682, 476,
+2361,2362, 332,  12, 222, 156,2363, 232,2364, 641, 276, 656, 517,1494,1495,1035,
+ 416, 736,1496,2365,1017, 586,2366,2367,2368,1497,2369, 242,2370,2371,2372,1498,
+2373, 965, 713,2374,2375,2376,2377, 740, 982,1499, 944,1500,1007,2378,2379,1310,
+1501,2380,2381,2382, 785, 329,2383,2384,1502,2385,2386,2387, 932,2388,1503,2389,
+2390,2391,2392,1242,2393,2394,2395,2396,2397, 994, 950,2398,2399,2400,2401,1504,
+1311,2402,2403,2404,2405,1049, 749,2406,2407, 853, 718,1144,1312,2408,1182,1505,
+2409,2410, 255, 516, 479, 564, 550, 214,1506,1507,1313, 413, 239, 444, 339,1145,
+1036,1508,1509,1314,1037,1510,1315,2411,1511,2412,2413,2414, 176, 703, 497, 624,
+ 593, 921, 302,2415, 341, 165,1103,1512,2416,1513,2417,2418,2419, 376,2420, 700,
+2421,2422,2423, 258, 768,1316,2424,1183,2425, 995, 608,2426,2427,2428,2429, 221,
+2430,2431,2432,2433,2434,2435,2436,2437, 195, 323, 726, 188, 897, 983,1317, 377,
+ 644,1050, 879,2438, 452,2439,2440,2441,2442,2443,2444, 914,2445,2446,2447,2448,
+ 915, 489,2449,1514,1184,2450,2451, 515,  64, 427, 495,2452, 583,2453, 483, 485,
+1038, 562, 213,1515, 748, 666,2454,2455,2456,2457, 334,2458, 780, 996,1008, 705,
+1243,2459,2460,2461,2462,2463, 114,2464, 493,1146, 366, 163,1516, 961,1104,2465,
+ 291,2466,1318,1105,2467,1517, 365,2468, 355, 951,1244,2469,1319,2470, 631,2471,
+2472, 218,1320, 364, 320, 756,1518,1519,1321,1520,1322,2473,2474,2475,2476, 997,
+2477,2478,2479,2480, 665,1185,2481, 916,1521,2482,2483,2484, 584, 684,2485,2486,
+ 797,2487,1051,1186,2488,2489,2490,1522,2491,2492, 370,2493,1039,1187,  65,2494,
+ 434, 205, 463,1188,2495, 125, 812, 391, 402, 826, 699, 286, 398, 155, 781, 771,
+ 585,2496, 590, 505,1073,2497, 599, 244, 219, 917,1018, 952, 646,1523,2498,1323,
+2499,2500,  49, 984, 354, 741,2501, 625,2502,1324,2503,1019, 190, 357, 757, 491,
+  95, 782, 868,2504,2505,2506,2507,2508,2509, 134,1524,1074, 422,1525, 898,2510,
+ 161,2511,2512,2513,2514, 769,2515,1526,2516,2517, 411,1325,2518, 472,1527,2519,
+2520,2521,2522,2523,2524, 985,2525,2526,2527,2528,2529,2530, 764,2531,1245,2532,
+2533,  25, 204, 311,2534, 496,2535,1052,2536,2537,2538,2539,2540,2541,2542, 199,
+ 704, 504, 468, 758, 657,1528, 196,  44, 839,1246, 272, 750,2543, 765, 862,2544,
+2545,1326,2546, 132, 615, 933,2547, 732,2548,2549,2550,1189,1529,2551, 283,1247,
+1053, 607, 929,2552,2553,2554, 930, 183, 872, 616,1040,1147,2555,1148,1020, 441,
+ 249,1075,2556,2557,2558, 466, 743,2559,2560,2561,  92, 514, 426, 420, 526,2562,
+2563,2564,2565,2566,2567,2568, 185,2569,2570,2571,2572, 776,1530, 658,2573, 362,
+2574, 361, 922,1076, 793,2575,2576,2577,2578,2579,2580,1531, 251,2581,2582,2583,
+2584,1532,  54, 612, 237,1327,2585,2586, 275, 408, 647, 111,2587,1533,1106, 465,
+   3, 458,   9,  38,2588, 107, 110, 890, 209,  26, 737, 498,2589,1534,2590, 431,
+ 202,  88,1535, 356, 287,1107, 660,1149,2591, 381,1536, 986,1150, 445,1248,1151,
+ 974,2592,2593, 846,2594, 446, 953, 184,1249,1250, 727,2595, 923, 193, 883,2596,
+2597,2598, 102, 324, 539, 817,2599, 421,1041,2600, 832,2601,  94, 175, 197, 406,
+2602, 459,2603,2604,2605,2606,2607, 330, 555,2608,2609,2610, 706,1108, 389,2611,
+2612,2613,2614, 233,2615, 833, 558, 931, 954,1251,2616,2617,1537, 546,2618,2619,
+1009,2620,2621,2622,1538, 690,1328,2623, 955,2624,1539,2625,2626, 772,2627,2628,
+2629,2630,2631, 924, 648, 863, 603,2632,2633, 934,1540, 864, 865,2634, 642,1042,
+ 670,1190,2635,2636,2637,2638, 168,2639, 652, 873, 542,1054,1541,2640,2641,2642,  # 512, 256
+#Everything below is of no interest for detection purpose
+2643,2644,2645,2646,2647,2648,2649,2650,2651,2652,2653,2654,2655,2656,2657,2658,
+2659,2660,2661,2662,2663,2664,2665,2666,2667,2668,2669,2670,2671,2672,2673,2674,
+2675,2676,2677,2678,2679,2680,2681,2682,2683,2684,2685,2686,2687,2688,2689,2690,
+2691,2692,2693,2694,2695,2696,2697,2698,2699,1542, 880,2700,2701,2702,2703,2704,
+2705,2706,2707,2708,2709,2710,2711,2712,2713,2714,2715,2716,2717,2718,2719,2720,
+2721,2722,2723,2724,2725,1543,2726,2727,2728,2729,2730,2731,2732,1544,2733,2734,
+2735,2736,2737,2738,2739,2740,2741,2742,2743,2744,2745,2746,2747,2748,2749,2750,
+2751,2752,2753,2754,1545,2755,2756,2757,2758,2759,2760,2761,2762,2763,2764,2765,
+2766,1546,2767,1547,2768,2769,2770,2771,2772,2773,2774,2775,2776,2777,2778,2779,
+2780,2781,2782,2783,2784,2785,2786,1548,2787,2788,2789,1109,2790,2791,2792,2793,
+2794,2795,2796,2797,2798,2799,2800,2801,2802,2803,2804,2805,2806,2807,2808,2809,
+2810,2811,2812,1329,2813,2814,2815,2816,2817,2818,2819,2820,2821,2822,2823,2824,
+2825,2826,2827,2828,2829,2830,2831,2832,2833,2834,2835,2836,2837,2838,2839,2840,
+2841,2842,2843,2844,2845,2846,2847,2848,2849,2850,2851,2852,2853,2854,2855,2856,
+1549,2857,2858,2859,2860,1550,2861,2862,1551,2863,2864,2865,2866,2867,2868,2869,
+2870,2871,2872,2873,2874,1110,1330,2875,2876,2877,2878,2879,2880,2881,2882,2883,
+2884,2885,2886,2887,2888,2889,2890,2891,2892,2893,2894,2895,2896,2897,2898,2899,
+2900,2901,2902,2903,2904,2905,2906,2907,2908,2909,2910,2911,2912,2913,2914,2915,
+2916,2917,2918,2919,2920,2921,2922,2923,2924,2925,2926,2927,2928,2929,2930,1331,
+2931,2932,2933,2934,2935,2936,2937,2938,2939,2940,2941,2942,2943,1552,2944,2945,
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+2977,2978,2979,2980,2981,2982,2983,2984,2985,2986,2987,2988,2989,2990,2991,2992,
+2993,2994,2995,2996,2997,2998,2999,3000,3001,3002,3003,3004,3005,3006,3007,3008,
+3009,3010,3011,3012,1553,3013,3014,3015,3016,3017,1554,3018,1332,3019,3020,3021,
+3022,3023,3024,3025,3026,3027,3028,3029,3030,3031,3032,3033,3034,3035,3036,3037,
+3038,3039,3040,3041,3042,3043,3044,3045,3046,3047,3048,3049,3050,1555,3051,3052,
+3053,1556,1557,3054,3055,3056,3057,3058,3059,3060,3061,3062,3063,3064,3065,3066,
+3067,1558,3068,3069,3070,3071,3072,3073,3074,3075,3076,1559,3077,3078,3079,3080,
+3081,3082,3083,1253,3084,3085,3086,3087,3088,3089,3090,3091,3092,3093,3094,3095,
+3096,3097,3098,3099,3100,3101,3102,3103,3104,3105,3106,3107,3108,1152,3109,3110,
+3111,3112,3113,1560,3114,3115,3116,3117,1111,3118,3119,3120,3121,3122,3123,3124,
+3125,3126,3127,3128,3129,3130,3131,3132,3133,3134,3135,3136,3137,3138,3139,3140,
+3141,3142,3143,3144,3145,3146,3147,3148,3149,3150,3151,3152,3153,3154,3155,3156,
+3157,3158,3159,3160,3161,3162,3163,3164,3165,3166,3167,3168,3169,3170,3171,3172,
+3173,3174,3175,3176,1333,3177,3178,3179,3180,3181,3182,3183,3184,3185,3186,3187,
+3188,3189,1561,3190,3191,1334,3192,3193,3194,3195,3196,3197,3198,3199,3200,3201,
+3202,3203,3204,3205,3206,3207,3208,3209,3210,3211,3212,3213,3214,3215,3216,3217,
+3218,3219,3220,3221,3222,3223,3224,3225,3226,3227,3228,3229,3230,3231,3232,3233,
+3234,1562,3235,3236,3237,3238,3239,3240,3241,3242,3243,3244,3245,3246,3247,3248,
+3249,3250,3251,3252,3253,3254,3255,3256,3257,3258,3259,3260,3261,3262,3263,3264,
+3265,3266,3267,3268,3269,3270,3271,3272,3273,3274,3275,3276,3277,1563,3278,3279,
+3280,3281,3282,3283,3284,3285,3286,3287,3288,3289,3290,3291,3292,3293,3294,3295,
+3296,3297,3298,3299,3300,3301,3302,3303,3304,3305,3306,3307,3308,3309,3310,3311,
+3312,3313,3314,3315,3316,3317,3318,3319,3320,3321,3322,3323,3324,3325,3326,3327,
+3328,3329,3330,3331,3332,3333,3334,3335,3336,3337,3338,3339,3340,3341,3342,3343,
+3344,3345,3346,3347,3348,3349,3350,3351,3352,3353,3354,3355,3356,3357,3358,3359,
+3360,3361,3362,3363,3364,1335,3365,3366,3367,3368,3369,3370,3371,3372,3373,3374,
+3375,3376,3377,3378,3379,3380,3381,3382,3383,3384,3385,3386,3387,1336,3388,3389,
+3390,3391,3392,3393,3394,3395,3396,3397,3398,3399,3400,3401,3402,3403,3404,3405,
+3406,3407,3408,3409,3410,3411,3412,3413,3414,1337,3415,3416,3417,3418,3419,1338,
+3420,3421,3422,1564,1565,3423,3424,3425,3426,3427,3428,3429,3430,3431,1254,3432,
+3433,3434,1339,3435,3436,3437,3438,3439,1566,3440,3441,3442,3443,3444,3445,3446,
+3447,3448,3449,3450,3451,3452,3453,3454,1255,3455,3456,3457,3458,3459,1567,1191,
+3460,1568,1569,3461,3462,3463,1570,3464,3465,3466,3467,3468,1571,3469,3470,3471,
+3472,3473,1572,3474,3475,3476,3477,3478,3479,3480,3481,3482,3483,3484,3485,3486,
+1340,3487,3488,3489,3490,3491,3492,1021,3493,3494,3495,3496,3497,3498,1573,3499,
+1341,3500,3501,3502,3503,3504,3505,3506,3507,3508,3509,3510,3511,1342,3512,3513,
+3514,3515,3516,1574,1343,3517,3518,3519,1575,3520,1576,3521,3522,3523,3524,3525,
+3526,3527,3528,3529,3530,3531,3532,3533,3534,3535,3536,3537,3538,3539,3540,3541,
+3542,3543,3544,3545,3546,3547,3548,3549,3550,3551,3552,3553,3554,3555,3556,3557,
+3558,3559,3560,3561,3562,3563,3564,3565,3566,3567,3568,3569,3570,3571,3572,3573,
+3574,3575,3576,3577,3578,3579,3580,1577,3581,3582,1578,3583,3584,3585,3586,3587,
+3588,3589,3590,3591,3592,3593,3594,3595,3596,3597,3598,3599,3600,3601,3602,3603,
+3604,1579,3605,3606,3607,3608,3609,3610,3611,3612,3613,3614,3615,3616,3617,3618,
+3619,3620,3621,3622,3623,3624,3625,3626,3627,3628,3629,1580,3630,3631,1581,3632,
+3633,3634,3635,3636,3637,3638,3639,3640,3641,3642,3643,3644,3645,3646,3647,3648,
+3649,3650,3651,3652,3653,3654,3655,3656,1582,3657,3658,3659,3660,3661,3662,3663,
+3664,3665,3666,3667,3668,3669,3670,3671,3672,3673,3674,3675,3676,3677,3678,3679,
+3680,3681,3682,3683,3684,3685,3686,3687,3688,3689,3690,3691,3692,3693,3694,3695,
+3696,3697,3698,3699,3700,1192,3701,3702,3703,3704,1256,3705,3706,3707,3708,1583,
+1257,3709,3710,3711,3712,3713,3714,3715,3716,1584,3717,3718,3719,3720,3721,3722,
+3723,3724,3725,3726,3727,3728,3729,3730,3731,3732,3733,3734,3735,3736,3737,3738,
+3739,3740,3741,3742,3743,3744,3745,1344,3746,3747,3748,3749,3750,3751,3752,3753,
+3754,3755,3756,1585,3757,3758,3759,3760,3761,3762,3763,3764,3765,3766,1586,3767,
+3768,3769,3770,3771,3772,3773,3774,3775,3776,3777,3778,1345,3779,3780,3781,3782,
+3783,3784,3785,3786,3787,3788,3789,3790,3791,3792,3793,3794,3795,1346,1587,3796,
+3797,1588,3798,3799,3800,3801,3802,3803,3804,3805,3806,1347,3807,3808,3809,3810,
+3811,1589,3812,3813,3814,3815,3816,3817,3818,3819,3820,3821,1590,3822,3823,1591,
+1348,3824,3825,3826,3827,3828,3829,3830,1592,3831,3832,1593,3833,3834,3835,3836,
+3837,3838,3839,3840,3841,3842,3843,3844,1349,3845,3846,3847,3848,3849,3850,3851,
+3852,3853,3854,3855,3856,3857,3858,1594,3859,3860,3861,3862,3863,3864,3865,3866,
+3867,3868,3869,1595,3870,3871,3872,3873,1596,3874,3875,3876,3877,3878,3879,3880,
+3881,3882,3883,3884,3885,3886,1597,3887,3888,3889,3890,3891,3892,3893,3894,3895,
+1598,3896,3897,3898,1599,1600,3899,1350,3900,1351,3901,3902,1352,3903,3904,3905,
+3906,3907,3908,3909,3910,3911,3912,3913,3914,3915,3916,3917,3918,3919,3920,3921,
+3922,3923,3924,1258,3925,3926,3927,3928,3929,3930,3931,1193,3932,1601,3933,3934,
+3935,3936,3937,3938,3939,3940,3941,3942,3943,1602,3944,3945,3946,3947,3948,1603,
+3949,3950,3951,3952,3953,3954,3955,3956,3957,3958,3959,3960,3961,3962,3963,3964,
+3965,1604,3966,3967,3968,3969,3970,3971,3972,3973,3974,3975,3976,3977,1353,3978,
+3979,3980,3981,3982,3983,3984,3985,3986,3987,3988,3989,3990,3991,1354,3992,3993,
+3994,3995,3996,3997,3998,3999,4000,4001,4002,4003,4004,4005,4006,4007,4008,4009,
+4010,4011,4012,4013,4014,4015,4016,4017,4018,4019,4020,4021,4022,4023,1355,4024,
+4025,4026,4027,4028,4029,4030,4031,4032,4033,4034,4035,4036,4037,4038,4039,4040,
+1605,4041,4042,4043,4044,4045,4046,4047,4048,4049,4050,4051,4052,4053,4054,4055,
+4056,4057,4058,4059,4060,1606,4061,4062,4063,4064,1607,4065,4066,4067,4068,4069,
+4070,4071,4072,4073,4074,4075,4076,1194,4077,4078,1608,4079,4080,4081,4082,4083,
+4084,4085,4086,4087,1609,4088,4089,4090,4091,4092,4093,4094,4095,4096,4097,4098,
+4099,4100,4101,4102,4103,4104,4105,4106,4107,4108,1259,4109,4110,4111,4112,4113,
+4114,4115,4116,4117,4118,4119,4120,4121,4122,4123,4124,1195,4125,4126,4127,1610,
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+4143,4144,1611,4145,4146,4147,4148,4149,4150,4151,4152,4153,4154,4155,4156,4157,
+4158,4159,4160,4161,4162,4163,4164,4165,4166,4167,4168,4169,4170,4171,4172,4173,
+4174,4175,4176,4177,4178,4179,4180,4181,4182,4183,4184,4185,4186,4187,4188,4189,
+4190,4191,4192,4193,4194,4195,4196,4197,4198,4199,4200,4201,4202,4203,4204,4205,
+4206,4207,4208,4209,4210,4211,4212,4213,4214,4215,4216,4217,4218,4219,1612,4220,
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+6257,6258,6259,6260,6261,6262,6263,1200,6264,6265,6266,6267,6268,6269,6270,6271,  #1024
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+7360,7361,7362,7363,7364,7365,7366,7367,7368,7369,7370,7371,7372,7373,7374,7375,
+7376,7377,7378,7379,7380,7381,7382,7383,7384,7385,7386,7387,7388,7389,7390,7391,
+7392,7393,7394,7395,7396,7397,7398,7399,7400,7401,7402,7403,7404,7405,7406,7407,
+7408,7409,7410,7411,7412,7413,7414,7415,7416,7417,7418,7419,7420,7421,7422,7423,
+7424,7425,7426,7427,7428,7429,7430,7431,7432,7433,7434,7435,7436,7437,7438,7439,
+7440,7441,7442,7443,7444,7445,7446,7447,7448,7449,7450,7451,7452,7453,7454,7455,
+7456,7457,7458,7459,7460,7461,7462,7463,7464,7465,7466,7467,7468,7469,7470,7471,
+7472,7473,7474,7475,7476,7477,7478,7479,7480,7481,7482,7483,7484,7485,7486,7487,
+7488,7489,7490,7491,7492,7493,7494,7495,7496,7497,7498,7499,7500,7501,7502,7503,
+7504,7505,7506,7507,7508,7509,7510,7511,7512,7513,7514,7515,7516,7517,7518,7519,
+7520,7521,7522,7523,7524,7525,7526,7527,7528,7529,7530,7531,7532,7533,7534,7535,
+7536,7537,7538,7539,7540,7541,7542,7543,7544,7545,7546,7547,7548,7549,7550,7551,
+7552,7553,7554,7555,7556,7557,7558,7559,7560,7561,7562,7563,7564,7565,7566,7567,
+7568,7569,7570,7571,7572,7573,7574,7575,7576,7577,7578,7579,7580,7581,7582,7583,
+7584,7585,7586,7587,7588,7589,7590,7591,7592,7593,7594,7595,7596,7597,7598,7599,
+7600,7601,7602,7603,7604,7605,7606,7607,7608,7609,7610,7611,7612,7613,7614,7615,
+7616,7617,7618,7619,7620,7621,7622,7623,7624,7625,7626,7627,7628,7629,7630,7631,
+7632,7633,7634,7635,7636,7637,7638,7639,7640,7641,7642,7643,7644,7645,7646,7647,
+7648,7649,7650,7651,7652,7653,7654,7655,7656,7657,7658,7659,7660,7661,7662,7663,
+7664,7665,7666,7667,7668,7669,7670,7671,7672,7673,7674,7675,7676,7677,7678,7679,
+7680,7681,7682,7683,7684,7685,7686,7687,7688,7689,7690,7691,7692,7693,7694,7695,
+7696,7697,7698,7699,7700,7701,7702,7703,7704,7705,7706,7707,7708,7709,7710,7711,
+7712,7713,7714,7715,7716,7717,7718,7719,7720,7721,7722,7723,7724,7725,7726,7727,
+7728,7729,7730,7731,7732,7733,7734,7735,7736,7737,7738,7739,7740,7741,7742,7743,
+7744,7745,7746,7747,7748,7749,7750,7751,7752,7753,7754,7755,7756,7757,7758,7759,
+7760,7761,7762,7763,7764,7765,7766,7767,7768,7769,7770,7771,7772,7773,7774,7775,
+7776,7777,7778,7779,7780,7781,7782,7783,7784,7785,7786,7787,7788,7789,7790,7791,
+7792,7793,7794,7795,7796,7797,7798,7799,7800,7801,7802,7803,7804,7805,7806,7807,
+7808,7809,7810,7811,7812,7813,7814,7815,7816,7817,7818,7819,7820,7821,7822,7823,
+7824,7825,7826,7827,7828,7829,7830,7831,7832,7833,7834,7835,7836,7837,7838,7839,
+7840,7841,7842,7843,7844,7845,7846,7847,7848,7849,7850,7851,7852,7853,7854,7855,
+7856,7857,7858,7859,7860,7861,7862,7863,7864,7865,7866,7867,7868,7869,7870,7871,
+7872,7873,7874,7875,7876,7877,7878,7879,7880,7881,7882,7883,7884,7885,7886,7887,
+7888,7889,7890,7891,7892,7893,7894,7895,7896,7897,7898,7899,7900,7901,7902,7903,
+7904,7905,7906,7907,7908,7909,7910,7911,7912,7913,7914,7915,7916,7917,7918,7919,
+7920,7921,7922,7923,7924,7925,7926,7927,7928,7929,7930,7931,7932,7933,7934,7935,
+7936,7937,7938,7939,7940,7941,7942,7943,7944,7945,7946,7947,7948,7949,7950,7951,
+7952,7953,7954,7955,7956,7957,7958,7959,7960,7961,7962,7963,7964,7965,7966,7967,
+7968,7969,7970,7971,7972,7973,7974,7975,7976,7977,7978,7979,7980,7981,7982,7983,
+7984,7985,7986,7987,7988,7989,7990,7991,7992,7993,7994,7995,7996,7997,7998,7999,
+8000,8001,8002,8003,8004,8005,8006,8007,8008,8009,8010,8011,8012,8013,8014,8015,
+8016,8017,8018,8019,8020,8021,8022,8023,8024,8025,8026,8027,8028,8029,8030,8031,
+8032,8033,8034,8035,8036,8037,8038,8039,8040,8041,8042,8043,8044,8045,8046,8047,
+8048,8049,8050,8051,8052,8053,8054,8055,8056,8057,8058,8059,8060,8061,8062,8063,
+8064,8065,8066,8067,8068,8069,8070,8071,8072,8073,8074,8075,8076,8077,8078,8079,
+8080,8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095,
+8096,8097,8098,8099,8100,8101,8102,8103,8104,8105,8106,8107,8108,8109,8110,8111,
+8112,8113,8114,8115,8116,8117,8118,8119,8120,8121,8122,8123,8124,8125,8126,8127,
+8128,8129,8130,8131,8132,8133,8134,8135,8136,8137,8138,8139,8140,8141,8142,8143,
+8144,8145,8146,8147,8148,8149,8150,8151,8152,8153,8154,8155,8156,8157,8158,8159,
+8160,8161,8162,8163,8164,8165,8166,8167,8168,8169,8170,8171,8172,8173,8174,8175,
+8176,8177,8178,8179,8180,8181,8182,8183,8184,8185,8186,8187,8188,8189,8190,8191,
+8192,8193,8194,8195,8196,8197,8198,8199,8200,8201,8202,8203,8204,8205,8206,8207,
+8208,8209,8210,8211,8212,8213,8214,8215,8216,8217,8218,8219,8220,8221,8222,8223,
+8224,8225,8226,8227,8228,8229,8230,8231,8232,8233,8234,8235,8236,8237,8238,8239,
+8240,8241,8242,8243,8244,8245,8246,8247,8248,8249,8250,8251,8252,8253,8254,8255,
+8256,8257,8258,8259,8260,8261,8262,8263,8264,8265,8266,8267,8268,8269,8270,8271,
+8272,8273,8274,8275,8276,8277,8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,
+8288,8289,8290,8291,8292,8293,8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,
+8304,8305,8306,8307,8308,8309,8310,8311,8312,8313,8314,8315,8316,8317,8318,8319,
+8320,8321,8322,8323,8324,8325,8326,8327,8328,8329,8330,8331,8332,8333,8334,8335,
+8336,8337,8338,8339,8340,8341,8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,
+8352,8353,8354,8355,8356,8357,8358,8359,8360,8361,8362,8363,8364,8365,8366,8367,
+8368,8369,8370,8371,8372,8373,8374,8375,8376,8377,8378,8379,8380,8381,8382,8383,
+8384,8385,8386,8387,8388,8389,8390,8391,8392,8393,8394,8395,8396,8397,8398,8399,
+8400,8401,8402,8403,8404,8405,8406,8407,8408,8409,8410,8411,8412,8413,8414,8415,
+8416,8417,8418,8419,8420,8421,8422,8423,8424,8425,8426,8427,8428,8429,8430,8431,
+8432,8433,8434,8435,8436,8437,8438,8439,8440,8441,8442,8443,8444,8445,8446,8447,
+8448,8449,8450,8451,8452,8453,8454,8455,8456,8457,8458,8459,8460,8461,8462,8463,
+8464,8465,8466,8467,8468,8469,8470,8471,8472,8473,8474,8475,8476,8477,8478,8479,
+8480,8481,8482,8483,8484,8485,8486,8487,8488,8489,8490,8491,8492,8493,8494,8495,
+8496,8497,8498,8499,8500,8501,8502,8503,8504,8505,8506,8507,8508,8509,8510,8511,
+8512,8513,8514,8515,8516,8517,8518,8519,8520,8521,8522,8523,8524,8525,8526,8527,
+8528,8529,8530,8531,8532,8533,8534,8535,8536,8537,8538,8539,8540,8541,8542,8543,
+8544,8545,8546,8547,8548,8549,8550,8551,8552,8553,8554,8555,8556,8557,8558,8559,
+8560,8561,8562,8563,8564,8565,8566,8567,8568,8569,8570,8571,8572,8573,8574,8575,
+8576,8577,8578,8579,8580,8581,8582,8583,8584,8585,8586,8587,8588,8589,8590,8591,
+8592,8593,8594,8595,8596,8597,8598,8599,8600,8601,8602,8603,8604,8605,8606,8607,
+8608,8609,8610,8611,8612,8613,8614,8615,8616,8617,8618,8619,8620,8621,8622,8623,
+8624,8625,8626,8627,8628,8629,8630,8631,8632,8633,8634,8635,8636,8637,8638,8639,
+8640,8641,8642,8643,8644,8645,8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,
+8656,8657,8658,8659,8660,8661,8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,
+8672,8673,8674,8675,8676,8677,8678,8679,8680,8681,8682,8683,8684,8685,8686,8687,
+8688,8689,8690,8691,8692,8693,8694,8695,8696,8697,8698,8699,8700,8701,8702,8703,
+8704,8705,8706,8707,8708,8709,8710,8711,8712,8713,8714,8715,8716,8717,8718,8719,
+8720,8721,8722,8723,8724,8725,8726,8727,8728,8729,8730,8731,8732,8733,8734,8735,
+8736,8737,8738,8739,8740,8741)
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py
new file mode 100644
index 0000000..5982a46
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euckrprober.py
@@ -0,0 +1,42 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCKRDistributionAnalysis
+from .mbcssm import EUCKRSMModel
+
+
+class EUCKRProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCKRSMModel)
+        self._mDistributionAnalyzer = EUCKRDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "EUC-KR"
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py
new file mode 100644
index 0000000..576e750
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwfreq.py
@@ -0,0 +1,428 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# EUCTW frequency table
+# Converted from big5 work
+# by Taiwan's Mandarin Promotion Council
+# <http:#www.edu.tw:81/mandr/>
+
+# 128  --> 0.42261
+# 256  --> 0.57851
+# 512  --> 0.74851
+# 1024 --> 0.89384
+# 2048 --> 0.97583
+#
+# Idea Distribution Ratio = 0.74851/(1-0.74851) =2.98
+# Random Distribution Ration = 512/(5401-512)=0.105
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher than RDR
+
+EUCTW_TYPICAL_DISTRIBUTION_RATIO = 0.75
+
+# Char to FreqOrder table ,
+EUCTW_TABLE_SIZE = 8102
+
+EUCTWCharToFreqOrder = (
+   1,1800,1506, 255,1431, 198,   9,  82,   6,7310, 177, 202,3615,1256,2808, 110, # 2742
+3735,  33,3241, 261,  76,  44,2113,  16,2931,2184,1176, 659,3868,  26,3404,2643, # 2758
+1198,3869,3313,4060, 410,2211, 302, 590, 361,1963,   8, 204,  58,4296,7311,1931, # 2774
+  63,7312,7313, 317,1614,  75, 222, 159,4061,2412,1480,7314,3500,3068, 224,2809, # 2790
+3616,   3,  10,3870,1471,  29,2774,1135,2852,1939, 873, 130,3242,1123, 312,7315, # 2806
+4297,2051, 507, 252, 682,7316, 142,1914, 124, 206,2932,  34,3501,3173,  64, 604, # 2822
+7317,2494,1976,1977, 155,1990, 645, 641,1606,7318,3405, 337,  72, 406,7319,  80, # 2838
+ 630, 238,3174,1509, 263, 939,1092,2644, 756,1440,1094,3406, 449,  69,2969, 591, # 2854
+ 179,2095, 471, 115,2034,1843,  60,  50,2970, 134, 806,1868, 734,2035,3407, 180, # 2870
+ 995,1607, 156, 537,2893, 688,7320, 319,1305, 779,2144, 514,2374, 298,4298, 359, # 2886
+2495,  90,2707,1338, 663,  11, 906,1099,2545,  20,2436, 182, 532,1716,7321, 732, # 2902
+1376,4062,1311,1420,3175,  25,2312,1056, 113, 399, 382,1949, 242,3408,2467, 529, # 2918
+3243, 475,1447,3617,7322, 117,  21, 656, 810,1297,2295,2329,3502,7323, 126,4063, # 2934
+ 706, 456, 150, 613,4299,  71,1118,2036,4064, 145,3069,  85, 835, 486,2114,1246, # 2950
+1426, 428, 727,1285,1015, 800, 106, 623, 303,1281,7324,2127,2354, 347,3736, 221, # 2966
+3503,3110,7325,1955,1153,4065,  83, 296,1199,3070, 192, 624,  93,7326, 822,1897, # 2982
+2810,3111, 795,2064, 991,1554,1542,1592,  27,  43,2853, 859, 139,1456, 860,4300, # 2998
+ 437, 712,3871, 164,2392,3112, 695, 211,3017,2096, 195,3872,1608,3504,3505,3618, # 3014
+3873, 234, 811,2971,2097,3874,2229,1441,3506,1615,2375, 668,2076,1638, 305, 228, # 3030
+1664,4301, 467, 415,7327, 262,2098,1593, 239, 108, 300, 200,1033, 512,1247,2077, # 3046
+7328,7329,2173,3176,3619,2673, 593, 845,1062,3244,  88,1723,2037,3875,1950, 212, # 3062
+ 266, 152, 149, 468,1898,4066,4302,  77, 187,7330,3018,  37,   5,2972,7331,3876, # 3078
+7332,7333,  39,2517,4303,2894,3177,2078,  55, 148,  74,4304, 545, 483,1474,1029, # 3094
+1665, 217,1869,1531,3113,1104,2645,4067,  24, 172,3507, 900,3877,3508,3509,4305, # 3110
+  32,1408,2811,1312, 329, 487,2355,2247,2708, 784,2674,   4,3019,3314,1427,1788, # 3126
+ 188, 109, 499,7334,3620,1717,1789, 888,1217,3020,4306,7335,3510,7336,3315,1520, # 3142
+3621,3878, 196,1034, 775,7337,7338, 929,1815, 249, 439,  38,7339,1063,7340, 794, # 3158
+3879,1435,2296,  46, 178,3245,2065,7341,2376,7342, 214,1709,4307, 804,  35, 707, # 3174
+ 324,3622,1601,2546, 140, 459,4068,7343,7344,1365, 839, 272, 978,2257,2572,3409, # 3190
+2128,1363,3623,1423, 697, 100,3071,  48,  70,1231, 495,3114,2193,7345,1294,7346, # 3206
+2079, 462, 586,1042,3246, 853, 256, 988, 185,2377,3410,1698, 434,1084,7347,3411, # 3222
+ 314,2615,2775,4308,2330,2331, 569,2280, 637,1816,2518, 757,1162,1878,1616,3412, # 3238
+ 287,1577,2115, 768,4309,1671,2854,3511,2519,1321,3737, 909,2413,7348,4069, 933, # 3254
+3738,7349,2052,2356,1222,4310, 765,2414,1322, 786,4311,7350,1919,1462,1677,2895, # 3270
+1699,7351,4312,1424,2437,3115,3624,2590,3316,1774,1940,3413,3880,4070, 309,1369, # 3286
+1130,2812, 364,2230,1653,1299,3881,3512,3882,3883,2646, 525,1085,3021, 902,2000, # 3302
+1475, 964,4313, 421,1844,1415,1057,2281, 940,1364,3116, 376,4314,4315,1381,   7, # 3318
+2520, 983,2378, 336,1710,2675,1845, 321,3414, 559,1131,3022,2742,1808,1132,1313, # 3334
+ 265,1481,1857,7352, 352,1203,2813,3247, 167,1089, 420,2814, 776, 792,1724,3513, # 3350
+4071,2438,3248,7353,4072,7354, 446, 229, 333,2743, 901,3739,1200,1557,4316,2647, # 3366
+1920, 395,2744,2676,3740,4073,1835, 125, 916,3178,2616,4317,7355,7356,3741,7357, # 3382
+7358,7359,4318,3117,3625,1133,2547,1757,3415,1510,2313,1409,3514,7360,2145, 438, # 3398
+2591,2896,2379,3317,1068, 958,3023, 461, 311,2855,2677,4074,1915,3179,4075,1978, # 3414
+ 383, 750,2745,2617,4076, 274, 539, 385,1278,1442,7361,1154,1964, 384, 561, 210, # 3430
+  98,1295,2548,3515,7362,1711,2415,1482,3416,3884,2897,1257, 129,7363,3742, 642, # 3446
+ 523,2776,2777,2648,7364, 141,2231,1333,  68, 176, 441, 876, 907,4077, 603,2592, # 3462
+ 710, 171,3417, 404, 549,  18,3118,2393,1410,3626,1666,7365,3516,4319,2898,4320, # 3478
+7366,2973, 368,7367, 146, 366,  99, 871,3627,1543, 748, 807,1586,1185,  22,2258, # 3494
+ 379,3743,3180,7368,3181, 505,1941,2618,1991,1382,2314,7369, 380,2357, 218, 702, # 3510
+1817,1248,3418,3024,3517,3318,3249,7370,2974,3628, 930,3250,3744,7371,  59,7372, # 3526
+ 585, 601,4078, 497,3419,1112,1314,4321,1801,7373,1223,1472,2174,7374, 749,1836, # 3542
+ 690,1899,3745,1772,3885,1476, 429,1043,1790,2232,2116, 917,4079, 447,1086,1629, # 3558
+7375, 556,7376,7377,2020,1654, 844,1090, 105, 550, 966,1758,2815,1008,1782, 686, # 3574
+1095,7378,2282, 793,1602,7379,3518,2593,4322,4080,2933,2297,4323,3746, 980,2496, # 3590
+ 544, 353, 527,4324, 908,2678,2899,7380, 381,2619,1942,1348,7381,1341,1252, 560, # 3606
+3072,7382,3420,2856,7383,2053, 973, 886,2080, 143,4325,7384,7385, 157,3886, 496, # 3622
+4081,  57, 840, 540,2038,4326,4327,3421,2117,1445, 970,2259,1748,1965,2081,4082, # 3638
+3119,1234,1775,3251,2816,3629, 773,1206,2129,1066,2039,1326,3887,1738,1725,4083, # 3654
+ 279,3120,  51,1544,2594, 423,1578,2130,2066, 173,4328,1879,7386,7387,1583, 264, # 3670
+ 610,3630,4329,2439, 280, 154,7388,7389,7390,1739, 338,1282,3073, 693,2857,1411, # 3686
+1074,3747,2440,7391,4330,7392,7393,1240, 952,2394,7394,2900,1538,2679, 685,1483, # 3702
+4084,2468,1436, 953,4085,2054,4331, 671,2395,  79,4086,2441,3252, 608, 567,2680, # 3718
+3422,4087,4088,1691, 393,1261,1791,2396,7395,4332,7396,7397,7398,7399,1383,1672, # 3734
+3748,3182,1464, 522,1119, 661,1150, 216, 675,4333,3888,1432,3519, 609,4334,2681, # 3750
+2397,7400,7401,7402,4089,3025,   0,7403,2469, 315, 231,2442, 301,3319,4335,2380, # 3766
+7404, 233,4090,3631,1818,4336,4337,7405,  96,1776,1315,2082,7406, 257,7407,1809, # 3782
+3632,2709,1139,1819,4091,2021,1124,2163,2778,1777,2649,7408,3074, 363,1655,3183, # 3798
+7409,2975,7410,7411,7412,3889,1567,3890, 718, 103,3184, 849,1443, 341,3320,2934, # 3814
+1484,7413,1712, 127,  67, 339,4092,2398, 679,1412, 821,7414,7415, 834, 738, 351, # 3830
+2976,2146, 846, 235,1497,1880, 418,1992,3749,2710, 186,1100,2147,2746,3520,1545, # 3846
+1355,2935,2858,1377, 583,3891,4093,2573,2977,7416,1298,3633,1078,2549,3634,2358, # 3862
+  78,3750,3751, 267,1289,2099,2001,1594,4094, 348, 369,1274,2194,2175,1837,4338, # 3878
+1820,2817,3635,2747,2283,2002,4339,2936,2748, 144,3321, 882,4340,3892,2749,3423, # 3894
+4341,2901,7417,4095,1726, 320,7418,3893,3026, 788,2978,7419,2818,1773,1327,2859, # 3910
+3894,2819,7420,1306,4342,2003,1700,3752,3521,2359,2650, 787,2022, 506, 824,3636, # 3926
+ 534, 323,4343,1044,3322,2023,1900, 946,3424,7421,1778,1500,1678,7422,1881,4344, # 3942
+ 165, 243,4345,3637,2521, 123, 683,4096, 764,4346,  36,3895,1792, 589,2902, 816, # 3958
+ 626,1667,3027,2233,1639,1555,1622,3753,3896,7423,3897,2860,1370,1228,1932, 891, # 3974
+2083,2903, 304,4097,7424, 292,2979,2711,3522, 691,2100,4098,1115,4347, 118, 662, # 3990
+7425, 611,1156, 854,2381,1316,2861,   2, 386, 515,2904,7426,7427,3253, 868,2234, # 4006
+1486, 855,2651, 785,2212,3028,7428,1040,3185,3523,7429,3121, 448,7430,1525,7431, # 4022
+2164,4348,7432,3754,7433,4099,2820,3524,3122, 503, 818,3898,3123,1568, 814, 676, # 4038
+1444, 306,1749,7434,3755,1416,1030, 197,1428, 805,2821,1501,4349,7435,7436,7437, # 4054
+1993,7438,4350,7439,7440,2195,  13,2779,3638,2980,3124,1229,1916,7441,3756,2131, # 4070
+7442,4100,4351,2399,3525,7443,2213,1511,1727,1120,7444,7445, 646,3757,2443, 307, # 4086
+7446,7447,1595,3186,7448,7449,7450,3639,1113,1356,3899,1465,2522,2523,7451, 519, # 4102
+7452, 128,2132,  92,2284,1979,7453,3900,1512, 342,3125,2196,7454,2780,2214,1980, # 4118
+3323,7455, 290,1656,1317, 789, 827,2360,7456,3758,4352, 562, 581,3901,7457, 401, # 4134
+4353,2248,  94,4354,1399,2781,7458,1463,2024,4355,3187,1943,7459, 828,1105,4101, # 4150
+1262,1394,7460,4102, 605,4356,7461,1783,2862,7462,2822, 819,2101, 578,2197,2937, # 4166
+7463,1502, 436,3254,4103,3255,2823,3902,2905,3425,3426,7464,2712,2315,7465,7466, # 4182
+2332,2067,  23,4357, 193, 826,3759,2102, 699,1630,4104,3075, 390,1793,1064,3526, # 4198
+7467,1579,3076,3077,1400,7468,4105,1838,1640,2863,7469,4358,4359, 137,4106, 598, # 4214
+3078,1966, 780, 104, 974,2938,7470, 278, 899, 253, 402, 572, 504, 493,1339,7471, # 4230
+3903,1275,4360,2574,2550,7472,3640,3029,3079,2249, 565,1334,2713, 863,  41,7473, # 4246
+7474,4361,7475,1657,2333,  19, 463,2750,4107, 606,7476,2981,3256,1087,2084,1323, # 4262
+2652,2982,7477,1631,1623,1750,4108,2682,7478,2864, 791,2714,2653,2334, 232,2416, # 4278
+7479,2983,1498,7480,2654,2620, 755,1366,3641,3257,3126,2025,1609, 119,1917,3427, # 4294
+ 862,1026,4109,7481,3904,3760,4362,3905,4363,2260,1951,2470,7482,1125, 817,4110, # 4310
+4111,3906,1513,1766,2040,1487,4112,3030,3258,2824,3761,3127,7483,7484,1507,7485, # 4326
+2683, 733,  40,1632,1106,2865, 345,4113, 841,2524, 230,4364,2984,1846,3259,3428, # 4342
+7486,1263, 986,3429,7487, 735, 879, 254,1137, 857, 622,1300,1180,1388,1562,3907, # 4358
+3908,2939, 967,2751,2655,1349, 592,2133,1692,3324,2985,1994,4114,1679,3909,1901, # 4374
+2185,7488, 739,3642,2715,1296,1290,7489,4115,2198,2199,1921,1563,2595,2551,1870, # 4390
+2752,2986,7490, 435,7491, 343,1108, 596,  17,1751,4365,2235,3430,3643,7492,4366, # 4406
+ 294,3527,2940,1693, 477, 979, 281,2041,3528, 643,2042,3644,2621,2782,2261,1031, # 4422
+2335,2134,2298,3529,4367, 367,1249,2552,7493,3530,7494,4368,1283,3325,2004, 240, # 4438
+1762,3326,4369,4370, 836,1069,3128, 474,7495,2148,2525, 268,3531,7496,3188,1521, # 4454
+1284,7497,1658,1546,4116,7498,3532,3533,7499,4117,3327,2684,1685,4118, 961,1673, # 4470
+2622, 190,2005,2200,3762,4371,4372,7500, 570,2497,3645,1490,7501,4373,2623,3260, # 4486
+1956,4374, 584,1514, 396,1045,1944,7502,4375,1967,2444,7503,7504,4376,3910, 619, # 4502
+7505,3129,3261, 215,2006,2783,2553,3189,4377,3190,4378, 763,4119,3763,4379,7506, # 4518
+7507,1957,1767,2941,3328,3646,1174, 452,1477,4380,3329,3130,7508,2825,1253,2382, # 4534
+2186,1091,2285,4120, 492,7509, 638,1169,1824,2135,1752,3911, 648, 926,1021,1324, # 4550
+4381, 520,4382, 997, 847,1007, 892,4383,3764,2262,1871,3647,7510,2400,1784,4384, # 4566
+1952,2942,3080,3191,1728,4121,2043,3648,4385,2007,1701,3131,1551,  30,2263,4122, # 4582
+7511,2026,4386,3534,7512, 501,7513,4123, 594,3431,2165,1821,3535,3432,3536,3192, # 4598
+ 829,2826,4124,7514,1680,3132,1225,4125,7515,3262,4387,4126,3133,2336,7516,4388, # 4614
+4127,7517,3912,3913,7518,1847,2383,2596,3330,7519,4389, 374,3914, 652,4128,4129, # 4630
+ 375,1140, 798,7520,7521,7522,2361,4390,2264, 546,1659, 138,3031,2445,4391,7523, # 4646
+2250, 612,1848, 910, 796,3765,1740,1371, 825,3766,3767,7524,2906,2554,7525, 692, # 4662
+ 444,3032,2624, 801,4392,4130,7526,1491, 244,1053,3033,4131,4132, 340,7527,3915, # 4678
+1041,2987, 293,1168,  87,1357,7528,1539, 959,7529,2236, 721, 694,4133,3768, 219, # 4694
+1478, 644,1417,3331,2656,1413,1401,1335,1389,3916,7530,7531,2988,2362,3134,1825, # 4710
+ 730,1515, 184,2827,  66,4393,7532,1660,2943, 246,3332, 378,1457, 226,3433, 975, # 4726
+3917,2944,1264,3537, 674, 696,7533, 163,7534,1141,2417,2166, 713,3538,3333,4394, # 4742
+3918,7535,7536,1186,  15,7537,1079,1070,7538,1522,3193,3539, 276,1050,2716, 758, # 4758
+1126, 653,2945,3263,7539,2337, 889,3540,3919,3081,2989, 903,1250,4395,3920,3434, # 4774
+3541,1342,1681,1718, 766,3264, 286,  89,2946,3649,7540,1713,7541,2597,3334,2990, # 4790
+7542,2947,2215,3194,2866,7543,4396,2498,2526, 181, 387,1075,3921, 731,2187,3335, # 4806
+7544,3265, 310, 313,3435,2299, 770,4134,  54,3034, 189,4397,3082,3769,3922,7545, # 4822
+1230,1617,1849, 355,3542,4135,4398,3336, 111,4136,3650,1350,3135,3436,3035,4137, # 4838
+2149,3266,3543,7546,2784,3923,3924,2991, 722,2008,7547,1071, 247,1207,2338,2471, # 4854
+1378,4399,2009, 864,1437,1214,4400, 373,3770,1142,2216, 667,4401, 442,2753,2555, # 4870
+3771,3925,1968,4138,3267,1839, 837, 170,1107, 934,1336,1882,7548,7549,2118,4139, # 4886
+2828, 743,1569,7550,4402,4140, 582,2384,1418,3437,7551,1802,7552, 357,1395,1729, # 4902
+3651,3268,2418,1564,2237,7553,3083,3772,1633,4403,1114,2085,4141,1532,7554, 482, # 4918
+2446,4404,7555,7556,1492, 833,1466,7557,2717,3544,1641,2829,7558,1526,1272,3652, # 4934
+4142,1686,1794, 416,2556,1902,1953,1803,7559,3773,2785,3774,1159,2316,7560,2867, # 4950
+4405,1610,1584,3036,2419,2754, 443,3269,1163,3136,7561,7562,3926,7563,4143,2499, # 4966
+3037,4406,3927,3137,2103,1647,3545,2010,1872,4144,7564,4145, 431,3438,7565, 250, # 4982
+  97,  81,4146,7566,1648,1850,1558, 160, 848,7567, 866, 740,1694,7568,2201,2830, # 4998
+3195,4147,4407,3653,1687, 950,2472, 426, 469,3196,3654,3655,3928,7569,7570,1188, # 5014
+ 424,1995, 861,3546,4148,3775,2202,2685, 168,1235,3547,4149,7571,2086,1674,4408, # 5030
+3337,3270, 220,2557,1009,7572,3776, 670,2992, 332,1208, 717,7573,7574,3548,2447, # 5046
+3929,3338,7575, 513,7576,1209,2868,3339,3138,4409,1080,7577,7578,7579,7580,2527, # 5062
+3656,3549, 815,1587,3930,3931,7581,3550,3439,3777,1254,4410,1328,3038,1390,3932, # 5078
+1741,3933,3778,3934,7582, 236,3779,2448,3271,7583,7584,3657,3780,1273,3781,4411, # 5094
+7585, 308,7586,4412, 245,4413,1851,2473,1307,2575, 430, 715,2136,2449,7587, 270, # 5110
+ 199,2869,3935,7588,3551,2718,1753, 761,1754, 725,1661,1840,4414,3440,3658,7589, # 5126
+7590, 587,  14,3272, 227,2598, 326, 480,2265, 943,2755,3552, 291, 650,1883,7591, # 5142
+1702,1226, 102,1547,  62,3441, 904,4415,3442,1164,4150,7592,7593,1224,1548,2756, # 5158
+ 391, 498,1493,7594,1386,1419,7595,2055,1177,4416, 813, 880,1081,2363, 566,1145, # 5174
+4417,2286,1001,1035,2558,2599,2238, 394,1286,7596,7597,2068,7598,  86,1494,1730, # 5190
+3936, 491,1588, 745, 897,2948, 843,3340,3937,2757,2870,3273,1768, 998,2217,2069, # 5206
+ 397,1826,1195,1969,3659,2993,3341, 284,7599,3782,2500,2137,2119,1903,7600,3938, # 5222
+2150,3939,4151,1036,3443,1904, 114,2559,4152, 209,1527,7601,7602,2949,2831,2625, # 5238
+2385,2719,3139, 812,2560,7603,3274,7604,1559, 737,1884,3660,1210, 885,  28,2686, # 5254
+3553,3783,7605,4153,1004,1779,4418,7606, 346,1981,2218,2687,4419,3784,1742, 797, # 5270
+1642,3940,1933,1072,1384,2151, 896,3941,3275,3661,3197,2871,3554,7607,2561,1958, # 5286
+4420,2450,1785,7608,7609,7610,3942,4154,1005,1308,3662,4155,2720,4421,4422,1528, # 5302
+2600, 161,1178,4156,1982, 987,4423,1101,4157, 631,3943,1157,3198,2420,1343,1241, # 5318
+1016,2239,2562, 372, 877,2339,2501,1160, 555,1934, 911,3944,7611, 466,1170, 169, # 5334
+1051,2907,2688,3663,2474,2994,1182,2011,2563,1251,2626,7612, 992,2340,3444,1540, # 5350
+2721,1201,2070,2401,1996,2475,7613,4424, 528,1922,2188,1503,1873,1570,2364,3342, # 5366
+3276,7614, 557,1073,7615,1827,3445,2087,2266,3140,3039,3084, 767,3085,2786,4425, # 5382
+1006,4158,4426,2341,1267,2176,3664,3199, 778,3945,3200,2722,1597,2657,7616,4427, # 5398
+7617,3446,7618,7619,7620,3277,2689,1433,3278, 131,  95,1504,3946, 723,4159,3141, # 5414
+1841,3555,2758,2189,3947,2027,2104,3665,7621,2995,3948,1218,7622,3343,3201,3949, # 5430
+4160,2576, 248,1634,3785, 912,7623,2832,3666,3040,3786, 654,  53,7624,2996,7625, # 5446
+1688,4428, 777,3447,1032,3950,1425,7626, 191, 820,2120,2833, 971,4429, 931,3202, # 5462
+ 135, 664, 783,3787,1997, 772,2908,1935,3951,3788,4430,2909,3203, 282,2723, 640, # 5478
+1372,3448,1127, 922, 325,3344,7627,7628, 711,2044,7629,7630,3952,2219,2787,1936, # 5494
+3953,3345,2220,2251,3789,2300,7631,4431,3790,1258,3279,3954,3204,2138,2950,3955, # 5510
+3956,7632,2221, 258,3205,4432, 101,1227,7633,3280,1755,7634,1391,3281,7635,2910, # 5526
+2056, 893,7636,7637,7638,1402,4161,2342,7639,7640,3206,3556,7641,7642, 878,1325, # 5542
+1780,2788,4433, 259,1385,2577, 744,1183,2267,4434,7643,3957,2502,7644, 684,1024, # 5558
+4162,7645, 472,3557,3449,1165,3282,3958,3959, 322,2152, 881, 455,1695,1152,1340, # 5574
+ 660, 554,2153,4435,1058,4436,4163, 830,1065,3346,3960,4437,1923,7646,1703,1918, # 5590
+7647, 932,2268, 122,7648,4438, 947, 677,7649,3791,2627, 297,1905,1924,2269,4439, # 5606
+2317,3283,7650,7651,4164,7652,4165,  84,4166, 112, 989,7653, 547,1059,3961, 701, # 5622
+3558,1019,7654,4167,7655,3450, 942, 639, 457,2301,2451, 993,2951, 407, 851, 494, # 5638
+4440,3347, 927,7656,1237,7657,2421,3348, 573,4168, 680, 921,2911,1279,1874, 285, # 5654
+ 790,1448,1983, 719,2167,7658,7659,4441,3962,3963,1649,7660,1541, 563,7661,1077, # 5670
+7662,3349,3041,3451, 511,2997,3964,3965,3667,3966,1268,2564,3350,3207,4442,4443, # 5686
+7663, 535,1048,1276,1189,2912,2028,3142,1438,1373,2834,2952,1134,2012,7664,4169, # 5702
+1238,2578,3086,1259,7665, 700,7666,2953,3143,3668,4170,7667,4171,1146,1875,1906, # 5718
+4444,2601,3967, 781,2422, 132,1589, 203, 147, 273,2789,2402, 898,1786,2154,3968, # 5734
+3969,7668,3792,2790,7669,7670,4445,4446,7671,3208,7672,1635,3793, 965,7673,1804, # 5750
+2690,1516,3559,1121,1082,1329,3284,3970,1449,3794,  65,1128,2835,2913,2759,1590, # 5766
+3795,7674,7675,  12,2658,  45, 976,2579,3144,4447, 517,2528,1013,1037,3209,7676, # 5782
+3796,2836,7677,3797,7678,3452,7679,2602, 614,1998,2318,3798,3087,2724,2628,7680, # 5798
+2580,4172, 599,1269,7681,1810,3669,7682,2691,3088, 759,1060, 489,1805,3351,3285, # 5814
+1358,7683,7684,2386,1387,1215,2629,2252, 490,7685,7686,4173,1759,2387,2343,7687, # 5830
+4448,3799,1907,3971,2630,1806,3210,4449,3453,3286,2760,2344, 874,7688,7689,3454, # 5846
+3670,1858,  91,2914,3671,3042,3800,4450,7690,3145,3972,2659,7691,3455,1202,1403, # 5862
+3801,2954,2529,1517,2503,4451,3456,2504,7692,4452,7693,2692,1885,1495,1731,3973, # 5878
+2365,4453,7694,2029,7695,7696,3974,2693,1216, 237,2581,4174,2319,3975,3802,4454, # 5894
+4455,2694,3560,3457, 445,4456,7697,7698,7699,7700,2761,  61,3976,3672,1822,3977, # 5910
+7701, 687,2045, 935, 925, 405,2660, 703,1096,1859,2725,4457,3978,1876,1367,2695, # 5926
+3352, 918,2105,1781,2476, 334,3287,1611,1093,4458, 564,3146,3458,3673,3353, 945, # 5942
+2631,2057,4459,7702,1925, 872,4175,7703,3459,2696,3089, 349,4176,3674,3979,4460, # 5958
+3803,4177,3675,2155,3980,4461,4462,4178,4463,2403,2046, 782,3981, 400, 251,4179, # 5974
+1624,7704,7705, 277,3676, 299,1265, 476,1191,3804,2121,4180,4181,1109, 205,7706, # 5990
+2582,1000,2156,3561,1860,7707,7708,7709,4464,7710,4465,2565, 107,2477,2157,3982, # 6006
+3460,3147,7711,1533, 541,1301, 158, 753,4182,2872,3562,7712,1696, 370,1088,4183, # 6022
+4466,3563, 579, 327, 440, 162,2240, 269,1937,1374,3461, 968,3043,  56,1396,3090, # 6038
+2106,3288,3354,7713,1926,2158,4467,2998,7714,3564,7715,7716,3677,4468,2478,7717, # 6054
+2791,7718,1650,4469,7719,2603,7720,7721,3983,2661,3355,1149,3356,3984,3805,3985, # 6070
+7722,1076,  49,7723, 951,3211,3289,3290, 450,2837, 920,7724,1811,2792,2366,4184, # 6086
+1908,1138,2367,3806,3462,7725,3212,4470,1909,1147,1518,2423,4471,3807,7726,4472, # 6102
+2388,2604, 260,1795,3213,7727,7728,3808,3291, 708,7729,3565,1704,7730,3566,1351, # 6118
+1618,3357,2999,1886, 944,4185,3358,4186,3044,3359,4187,7731,3678, 422, 413,1714, # 6134
+3292, 500,2058,2345,4188,2479,7732,1344,1910, 954,7733,1668,7734,7735,3986,2404, # 6150
+4189,3567,3809,4190,7736,2302,1318,2505,3091, 133,3092,2873,4473, 629,  31,2838, # 6166
+2697,3810,4474, 850, 949,4475,3987,2955,1732,2088,4191,1496,1852,7737,3988, 620, # 6182
+3214, 981,1242,3679,3360,1619,3680,1643,3293,2139,2452,1970,1719,3463,2168,7738, # 6198
+3215,7739,7740,3361,1828,7741,1277,4476,1565,2047,7742,1636,3568,3093,7743, 869, # 6214
+2839, 655,3811,3812,3094,3989,3000,3813,1310,3569,4477,7744,7745,7746,1733, 558, # 6230
+4478,3681, 335,1549,3045,1756,4192,3682,1945,3464,1829,1291,1192, 470,2726,2107, # 6246
+2793, 913,1054,3990,7747,1027,7748,3046,3991,4479, 982,2662,3362,3148,3465,3216, # 6262
+3217,1946,2794,7749, 571,4480,7750,1830,7751,3570,2583,1523,2424,7752,2089, 984, # 6278
+4481,3683,1959,7753,3684, 852, 923,2795,3466,3685, 969,1519, 999,2048,2320,1705, # 6294
+7754,3095, 615,1662, 151, 597,3992,2405,2321,1049, 275,4482,3686,4193, 568,3687, # 6310
+3571,2480,4194,3688,7755,2425,2270, 409,3218,7756,1566,2874,3467,1002, 769,2840, # 6326
+ 194,2090,3149,3689,2222,3294,4195, 628,1505,7757,7758,1763,2177,3001,3993, 521, # 6342
+1161,2584,1787,2203,2406,4483,3994,1625,4196,4197, 412,  42,3096, 464,7759,2632, # 6358
+4484,3363,1760,1571,2875,3468,2530,1219,2204,3814,2633,2140,2368,4485,4486,3295, # 6374
+1651,3364,3572,7760,7761,3573,2481,3469,7762,3690,7763,7764,2271,2091, 460,7765, # 6390
+4487,7766,3002, 962, 588,3574, 289,3219,2634,1116,  52,7767,3047,1796,7768,7769, # 6406
+7770,1467,7771,1598,1143,3691,4198,1984,1734,1067,4488,1280,3365, 465,4489,1572, # 6422
+ 510,7772,1927,2241,1812,1644,3575,7773,4490,3692,7774,7775,2663,1573,1534,7776, # 6438
+7777,4199, 536,1807,1761,3470,3815,3150,2635,7778,7779,7780,4491,3471,2915,1911, # 6454
+2796,7781,3296,1122, 377,3220,7782, 360,7783,7784,4200,1529, 551,7785,2059,3693, # 6470
+1769,2426,7786,2916,4201,3297,3097,2322,2108,2030,4492,1404, 136,1468,1479, 672, # 6486
+1171,3221,2303, 271,3151,7787,2762,7788,2049, 678,2727, 865,1947,4493,7789,2013, # 6502
+3995,2956,7790,2728,2223,1397,3048,3694,4494,4495,1735,2917,3366,3576,7791,3816, # 6518
+ 509,2841,2453,2876,3817,7792,7793,3152,3153,4496,4202,2531,4497,2304,1166,1010, # 6534
+ 552, 681,1887,7794,7795,2957,2958,3996,1287,1596,1861,3154, 358, 453, 736, 175, # 6550
+ 478,1117, 905,1167,1097,7796,1853,1530,7797,1706,7798,2178,3472,2287,3695,3473, # 6566
+3577,4203,2092,4204,7799,3367,1193,2482,4205,1458,2190,2205,1862,1888,1421,3298, # 6582
+2918,3049,2179,3474, 595,2122,7800,3997,7801,7802,4206,1707,2636, 223,3696,1359, # 6598
+ 751,3098, 183,3475,7803,2797,3003, 419,2369, 633, 704,3818,2389, 241,7804,7805, # 6614
+7806, 838,3004,3697,2272,2763,2454,3819,1938,2050,3998,1309,3099,2242,1181,7807, # 6630
+1136,2206,3820,2370,1446,4207,2305,4498,7808,7809,4208,1055,2605, 484,3698,7810, # 6646
+3999, 625,4209,2273,3368,1499,4210,4000,7811,4001,4211,3222,2274,2275,3476,7812, # 6662
+7813,2764, 808,2606,3699,3369,4002,4212,3100,2532, 526,3370,3821,4213, 955,7814, # 6678
+1620,4214,2637,2427,7815,1429,3700,1669,1831, 994, 928,7816,3578,1260,7817,7818, # 6694
+7819,1948,2288, 741,2919,1626,4215,2729,2455, 867,1184, 362,3371,1392,7820,7821, # 6710
+4003,4216,1770,1736,3223,2920,4499,4500,1928,2698,1459,1158,7822,3050,3372,2877, # 6726
+1292,1929,2506,2842,3701,1985,1187,2071,2014,2607,4217,7823,2566,2507,2169,3702, # 6742
+2483,3299,7824,3703,4501,7825,7826, 666,1003,3005,1022,3579,4218,7827,4502,1813, # 6758
+2253, 574,3822,1603, 295,1535, 705,3823,4219, 283, 858, 417,7828,7829,3224,4503, # 6774
+4504,3051,1220,1889,1046,2276,2456,4004,1393,1599, 689,2567, 388,4220,7830,2484, # 6790
+ 802,7831,2798,3824,2060,1405,2254,7832,4505,3825,2109,1052,1345,3225,1585,7833, # 6806
+ 809,7834,7835,7836, 575,2730,3477, 956,1552,1469,1144,2323,7837,2324,1560,2457, # 6822
+3580,3226,4005, 616,2207,3155,2180,2289,7838,1832,7839,3478,4506,7840,1319,3704, # 6838
+3705,1211,3581,1023,3227,1293,2799,7841,7842,7843,3826, 607,2306,3827, 762,2878, # 6854
+1439,4221,1360,7844,1485,3052,7845,4507,1038,4222,1450,2061,2638,4223,1379,4508, # 6870
+2585,7846,7847,4224,1352,1414,2325,2921,1172,7848,7849,3828,3829,7850,1797,1451, # 6886
+7851,7852,7853,7854,2922,4006,4007,2485,2346, 411,4008,4009,3582,3300,3101,4509, # 6902
+1561,2664,1452,4010,1375,7855,7856,  47,2959, 316,7857,1406,1591,2923,3156,7858, # 6918
+1025,2141,3102,3157, 354,2731, 884,2224,4225,2407, 508,3706, 726,3583, 996,2428, # 6934
+3584, 729,7859, 392,2191,1453,4011,4510,3707,7860,7861,2458,3585,2608,1675,2800, # 6950
+ 919,2347,2960,2348,1270,4511,4012,  73,7862,7863, 647,7864,3228,2843,2255,1550, # 6966
+1346,3006,7865,1332, 883,3479,7866,7867,7868,7869,3301,2765,7870,1212, 831,1347, # 6982
+4226,4512,2326,3830,1863,3053, 720,3831,4513,4514,3832,7871,4227,7872,7873,4515, # 6998
+7874,7875,1798,4516,3708,2609,4517,3586,1645,2371,7876,7877,2924, 669,2208,2665, # 7014
+2429,7878,2879,7879,7880,1028,3229,7881,4228,2408,7882,2256,1353,7883,7884,4518, # 7030
+3158, 518,7885,4013,7886,4229,1960,7887,2142,4230,7888,7889,3007,2349,2350,3833, # 7046
+ 516,1833,1454,4014,2699,4231,4519,2225,2610,1971,1129,3587,7890,2766,7891,2961, # 7062
+1422, 577,1470,3008,1524,3373,7892,7893, 432,4232,3054,3480,7894,2586,1455,2508, # 7078
+2226,1972,1175,7895,1020,2732,4015,3481,4520,7896,2733,7897,1743,1361,3055,3482, # 7094
+2639,4016,4233,4521,2290, 895, 924,4234,2170, 331,2243,3056, 166,1627,3057,1098, # 7110
+7898,1232,2880,2227,3374,4522, 657, 403,1196,2372, 542,3709,3375,1600,4235,3483, # 7126
+7899,4523,2767,3230, 576, 530,1362,7900,4524,2533,2666,3710,4017,7901, 842,3834, # 7142
+7902,2801,2031,1014,4018, 213,2700,3376, 665, 621,4236,7903,3711,2925,2430,7904, # 7158
+2431,3302,3588,3377,7905,4237,2534,4238,4525,3589,1682,4239,3484,1380,7906, 724, # 7174
+2277, 600,1670,7907,1337,1233,4526,3103,2244,7908,1621,4527,7909, 651,4240,7910, # 7190
+1612,4241,2611,7911,2844,7912,2734,2307,3058,7913, 716,2459,3059, 174,1255,2701, # 7206
+4019,3590, 548,1320,1398, 728,4020,1574,7914,1890,1197,3060,4021,7915,3061,3062, # 7222
+3712,3591,3713, 747,7916, 635,4242,4528,7917,7918,7919,4243,7920,7921,4529,7922, # 7238
+3378,4530,2432, 451,7923,3714,2535,2072,4244,2735,4245,4022,7924,1764,4531,7925, # 7254
+4246, 350,7926,2278,2390,2486,7927,4247,4023,2245,1434,4024, 488,4532, 458,4248, # 7270
+4025,3715, 771,1330,2391,3835,2568,3159,2159,2409,1553,2667,3160,4249,7928,2487, # 7286
+2881,2612,1720,2702,4250,3379,4533,7929,2536,4251,7930,3231,4252,2768,7931,2015, # 7302
+2736,7932,1155,1017,3716,3836,7933,3303,2308, 201,1864,4253,1430,7934,4026,7935, # 7318
+7936,7937,7938,7939,4254,1604,7940, 414,1865, 371,2587,4534,4535,3485,2016,3104, # 7334
+4536,1708, 960,4255, 887, 389,2171,1536,1663,1721,7941,2228,4027,2351,2926,1580, # 7350
+7942,7943,7944,1744,7945,2537,4537,4538,7946,4539,7947,2073,7948,7949,3592,3380, # 7366
+2882,4256,7950,4257,2640,3381,2802, 673,2703,2460, 709,3486,4028,3593,4258,7951, # 7382
+1148, 502, 634,7952,7953,1204,4540,3594,1575,4541,2613,3717,7954,3718,3105, 948, # 7398
+3232, 121,1745,3837,1110,7955,4259,3063,2509,3009,4029,3719,1151,1771,3838,1488, # 7414
+4030,1986,7956,2433,3487,7957,7958,2093,7959,4260,3839,1213,1407,2803, 531,2737, # 7430
+2538,3233,1011,1537,7960,2769,4261,3106,1061,7961,3720,3721,1866,2883,7962,2017, # 7446
+ 120,4262,4263,2062,3595,3234,2309,3840,2668,3382,1954,4542,7963,7964,3488,1047, # 7462
+2704,1266,7965,1368,4543,2845, 649,3383,3841,2539,2738,1102,2846,2669,7966,7967, # 7478
+1999,7968,1111,3596,2962,7969,2488,3842,3597,2804,1854,3384,3722,7970,7971,3385, # 7494
+2410,2884,3304,3235,3598,7972,2569,7973,3599,2805,4031,1460, 856,7974,3600,7975, # 7510
+2885,2963,7976,2886,3843,7977,4264, 632,2510, 875,3844,1697,3845,2291,7978,7979, # 7526
+4544,3010,1239, 580,4545,4265,7980, 914, 936,2074,1190,4032,1039,2123,7981,7982, # 7542
+7983,3386,1473,7984,1354,4266,3846,7985,2172,3064,4033, 915,3305,4267,4268,3306, # 7558
+1605,1834,7986,2739, 398,3601,4269,3847,4034, 328,1912,2847,4035,3848,1331,4270, # 7574
+3011, 937,4271,7987,3602,4036,4037,3387,2160,4546,3388, 524, 742, 538,3065,1012, # 7590
+7988,7989,3849,2461,7990, 658,1103, 225,3850,7991,7992,4547,7993,4548,7994,3236, # 7606
+1243,7995,4038, 963,2246,4549,7996,2705,3603,3161,7997,7998,2588,2327,7999,4550, # 7622
+8000,8001,8002,3489,3307, 957,3389,2540,2032,1930,2927,2462, 870,2018,3604,1746, # 7638
+2770,2771,2434,2463,8003,3851,8004,3723,3107,3724,3490,3390,3725,8005,1179,3066, # 7654
+8006,3162,2373,4272,3726,2541,3163,3108,2740,4039,8007,3391,1556,2542,2292, 977, # 7670
+2887,2033,4040,1205,3392,8008,1765,3393,3164,2124,1271,1689, 714,4551,3491,8009, # 7686
+2328,3852, 533,4273,3605,2181, 617,8010,2464,3308,3492,2310,8011,8012,3165,8013, # 7702
+8014,3853,1987, 618, 427,2641,3493,3394,8015,8016,1244,1690,8017,2806,4274,4552, # 7718
+8018,3494,8019,8020,2279,1576, 473,3606,4275,3395, 972,8021,3607,8022,3067,8023, # 7734
+8024,4553,4554,8025,3727,4041,4042,8026, 153,4555, 356,8027,1891,2888,4276,2143, # 7750
+ 408, 803,2352,8028,3854,8029,4277,1646,2570,2511,4556,4557,3855,8030,3856,4278, # 7766
+8031,2411,3396, 752,8032,8033,1961,2964,8034, 746,3012,2465,8035,4279,3728, 698, # 7782
+4558,1892,4280,3608,2543,4559,3609,3857,8036,3166,3397,8037,1823,1302,4043,2706, # 7798
+3858,1973,4281,8038,4282,3167, 823,1303,1288,1236,2848,3495,4044,3398, 774,3859, # 7814
+8039,1581,4560,1304,2849,3860,4561,8040,2435,2161,1083,3237,4283,4045,4284, 344, # 7830
+1173, 288,2311, 454,1683,8041,8042,1461,4562,4046,2589,8043,8044,4563, 985, 894, # 7846
+8045,3399,3168,8046,1913,2928,3729,1988,8047,2110,1974,8048,4047,8049,2571,1194, # 7862
+ 425,8050,4564,3169,1245,3730,4285,8051,8052,2850,8053, 636,4565,1855,3861, 760, # 7878
+1799,8054,4286,2209,1508,4566,4048,1893,1684,2293,8055,8056,8057,4287,4288,2210, # 7894
+ 479,8058,8059, 832,8060,4049,2489,8061,2965,2490,3731, 990,3109, 627,1814,2642, # 7910
+4289,1582,4290,2125,2111,3496,4567,8062, 799,4291,3170,8063,4568,2112,1737,3013, # 7926
+1018, 543, 754,4292,3309,1676,4569,4570,4050,8064,1489,8065,3497,8066,2614,2889, # 7942
+4051,8067,8068,2966,8069,8070,8071,8072,3171,4571,4572,2182,1722,8073,3238,3239, # 7958
+1842,3610,1715, 481, 365,1975,1856,8074,8075,1962,2491,4573,8076,2126,3611,3240, # 7974
+ 433,1894,2063,2075,8077, 602,2741,8078,8079,8080,8081,8082,3014,1628,3400,8083, # 7990
+3172,4574,4052,2890,4575,2512,8084,2544,2772,8085,8086,8087,3310,4576,2891,8088, # 8006
+4577,8089,2851,4578,4579,1221,2967,4053,2513,8090,8091,8092,1867,1989,8093,8094, # 8022
+8095,1895,8096,8097,4580,1896,4054, 318,8098,2094,4055,4293,8099,8100, 485,8101, # 8038
+ 938,3862, 553,2670, 116,8102,3863,3612,8103,3498,2671,2773,3401,3311,2807,8104, # 8054
+3613,2929,4056,1747,2930,2968,8105,8106, 207,8107,8108,2672,4581,2514,8109,3015, # 8070
+ 890,3614,3864,8110,1877,3732,3402,8111,2183,2353,3403,1652,8112,8113,8114, 941, # 8086
+2294, 208,3499,4057,2019, 330,4294,3865,2892,2492,3733,4295,8115,8116,8117,8118, # 8102
+#Everything below is of no interest for detection purpose
+2515,1613,4582,8119,3312,3866,2516,8120,4058,8121,1637,4059,2466,4583,3867,8122, # 8118
+2493,3016,3734,8123,8124,2192,8125,8126,2162,8127,8128,8129,8130,8131,8132,8133, # 8134
+8134,8135,8136,8137,8138,8139,8140,8141,8142,8143,8144,8145,8146,8147,8148,8149, # 8150
+8150,8151,8152,8153,8154,8155,8156,8157,8158,8159,8160,8161,8162,8163,8164,8165, # 8166
+8166,8167,8168,8169,8170,8171,8172,8173,8174,8175,8176,8177,8178,8179,8180,8181, # 8182
+8182,8183,8184,8185,8186,8187,8188,8189,8190,8191,8192,8193,8194,8195,8196,8197, # 8198
+8198,8199,8200,8201,8202,8203,8204,8205,8206,8207,8208,8209,8210,8211,8212,8213, # 8214
+8214,8215,8216,8217,8218,8219,8220,8221,8222,8223,8224,8225,8226,8227,8228,8229, # 8230
+8230,8231,8232,8233,8234,8235,8236,8237,8238,8239,8240,8241,8242,8243,8244,8245, # 8246
+8246,8247,8248,8249,8250,8251,8252,8253,8254,8255,8256,8257,8258,8259,8260,8261, # 8262
+8262,8263,8264,8265,8266,8267,8268,8269,8270,8271,8272,8273,8274,8275,8276,8277, # 8278
+8278,8279,8280,8281,8282,8283,8284,8285,8286,8287,8288,8289,8290,8291,8292,8293, # 8294
+8294,8295,8296,8297,8298,8299,8300,8301,8302,8303,8304,8305,8306,8307,8308,8309, # 8310
+8310,8311,8312,8313,8314,8315,8316,8317,8318,8319,8320,8321,8322,8323,8324,8325, # 8326
+8326,8327,8328,8329,8330,8331,8332,8333,8334,8335,8336,8337,8338,8339,8340,8341, # 8342
+8342,8343,8344,8345,8346,8347,8348,8349,8350,8351,8352,8353,8354,8355,8356,8357, # 8358
+8358,8359,8360,8361,8362,8363,8364,8365,8366,8367,8368,8369,8370,8371,8372,8373, # 8374
+8374,8375,8376,8377,8378,8379,8380,8381,8382,8383,8384,8385,8386,8387,8388,8389, # 8390
+8390,8391,8392,8393,8394,8395,8396,8397,8398,8399,8400,8401,8402,8403,8404,8405, # 8406
+8406,8407,8408,8409,8410,8411,8412,8413,8414,8415,8416,8417,8418,8419,8420,8421, # 8422
+8422,8423,8424,8425,8426,8427,8428,8429,8430,8431,8432,8433,8434,8435,8436,8437, # 8438
+8438,8439,8440,8441,8442,8443,8444,8445,8446,8447,8448,8449,8450,8451,8452,8453, # 8454
+8454,8455,8456,8457,8458,8459,8460,8461,8462,8463,8464,8465,8466,8467,8468,8469, # 8470
+8470,8471,8472,8473,8474,8475,8476,8477,8478,8479,8480,8481,8482,8483,8484,8485, # 8486
+8486,8487,8488,8489,8490,8491,8492,8493,8494,8495,8496,8497,8498,8499,8500,8501, # 8502
+8502,8503,8504,8505,8506,8507,8508,8509,8510,8511,8512,8513,8514,8515,8516,8517, # 8518
+8518,8519,8520,8521,8522,8523,8524,8525,8526,8527,8528,8529,8530,8531,8532,8533, # 8534
+8534,8535,8536,8537,8538,8539,8540,8541,8542,8543,8544,8545,8546,8547,8548,8549, # 8550
+8550,8551,8552,8553,8554,8555,8556,8557,8558,8559,8560,8561,8562,8563,8564,8565, # 8566
+8566,8567,8568,8569,8570,8571,8572,8573,8574,8575,8576,8577,8578,8579,8580,8581, # 8582
+8582,8583,8584,8585,8586,8587,8588,8589,8590,8591,8592,8593,8594,8595,8596,8597, # 8598
+8598,8599,8600,8601,8602,8603,8604,8605,8606,8607,8608,8609,8610,8611,8612,8613, # 8614
+8614,8615,8616,8617,8618,8619,8620,8621,8622,8623,8624,8625,8626,8627,8628,8629, # 8630
+8630,8631,8632,8633,8634,8635,8636,8637,8638,8639,8640,8641,8642,8643,8644,8645, # 8646
+8646,8647,8648,8649,8650,8651,8652,8653,8654,8655,8656,8657,8658,8659,8660,8661, # 8662
+8662,8663,8664,8665,8666,8667,8668,8669,8670,8671,8672,8673,8674,8675,8676,8677, # 8678
+8678,8679,8680,8681,8682,8683,8684,8685,8686,8687,8688,8689,8690,8691,8692,8693, # 8694
+8694,8695,8696,8697,8698,8699,8700,8701,8702,8703,8704,8705,8706,8707,8708,8709, # 8710
+8710,8711,8712,8713,8714,8715,8716,8717,8718,8719,8720,8721,8722,8723,8724,8725, # 8726
+8726,8727,8728,8729,8730,8731,8732,8733,8734,8735,8736,8737,8738,8739,8740,8741) # 8742
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py
new file mode 100644
index 0000000..fe652fe
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/euctwprober.py
@@ -0,0 +1,41 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import EUCTWDistributionAnalysis
+from .mbcssm import EUCTWSMModel
+
+class EUCTWProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(EUCTWSMModel)
+        self._mDistributionAnalyzer = EUCTWDistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "EUC-TW"
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py
new file mode 100644
index 0000000..1238f51
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312freq.py
@@ -0,0 +1,472 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# GB2312 most frequently used character table
+#
+# Char to FreqOrder table , from hz6763
+
+# 512  --> 0.79  -- 0.79
+# 1024 --> 0.92  -- 0.13
+# 2048 --> 0.98  -- 0.06
+# 6768 --> 1.00  -- 0.02
+#
+# Ideal Distribution Ratio = 0.79135/(1-0.79135) = 3.79
+# Random Distribution Ration = 512 / (3755 - 512) = 0.157
+#
+# Typical Distribution Ratio about 25% of Ideal one, still much higher that RDR
+
+GB2312_TYPICAL_DISTRIBUTION_RATIO = 0.9
+
+GB2312_TABLE_SIZE = 3760
+
+GB2312CharToFreqOrder = (
+1671, 749,1443,2364,3924,3807,2330,3921,1704,3463,2691,1511,1515, 572,3191,2205,
+2361, 224,2558, 479,1711, 963,3162, 440,4060,1905,2966,2947,3580,2647,3961,3842,
+2204, 869,4207, 970,2678,5626,2944,2956,1479,4048, 514,3595, 588,1346,2820,3409,
+ 249,4088,1746,1873,2047,1774, 581,1813, 358,1174,3590,1014,1561,4844,2245, 670,
+1636,3112, 889,1286, 953, 556,2327,3060,1290,3141, 613, 185,3477,1367, 850,3820,
+1715,2428,2642,2303,2732,3041,2562,2648,3566,3946,1349, 388,3098,2091,1360,3585,
+ 152,1687,1539, 738,1559,  59,1232,2925,2267,1388,1249,1741,1679,2960, 151,1566,
+1125,1352,4271, 924,4296, 385,3166,4459, 310,1245,2850,  70,3285,2729,3534,3575,
+2398,3298,3466,1960,2265, 217,3647, 864,1909,2084,4401,2773,1010,3269,5152, 853,
+3051,3121,1244,4251,1895, 364,1499,1540,2313,1180,3655,2268, 562, 715,2417,3061,
+ 544, 336,3768,2380,1752,4075, 950, 280,2425,4382, 183,2759,3272, 333,4297,2155,
+1688,2356,1444,1039,4540, 736,1177,3349,2443,2368,2144,2225, 565, 196,1482,3406,
+ 927,1335,4147, 692, 878,1311,1653,3911,3622,1378,4200,1840,2969,3149,2126,1816,
+2534,1546,2393,2760, 737,2494,  13, 447, 245,2747,  38,2765,2129,2589,1079, 606,
+ 360, 471,3755,2890, 404, 848, 699,1785,1236, 370,2221,1023,3746,2074,2026,2023,
+2388,1581,2119, 812,1141,3091,2536,1519, 804,2053, 406,1596,1090, 784, 548,4414,
+1806,2264,2936,1100, 343,4114,5096, 622,3358, 743,3668,1510,1626,5020,3567,2513,
+3195,4115,5627,2489,2991,  24,2065,2697,1087,2719,  48,1634, 315,  68, 985,2052,
+ 198,2239,1347,1107,1439, 597,2366,2172, 871,3307, 919,2487,2790,1867, 236,2570,
+1413,3794, 906,3365,3381,1701,1982,1818,1524,2924,1205, 616,2586,2072,2004, 575,
+ 253,3099,  32,1365,1182, 197,1714,2454,1201, 554,3388,3224,2748, 756,2587, 250,
+2567,1507,1517,3529,1922,2761,2337,3416,1961,1677,2452,2238,3153, 615, 911,1506,
+1474,2495,1265,1906,2749,3756,3280,2161, 898,2714,1759,3450,2243,2444, 563,  26,
+3286,2266,3769,3344,2707,3677, 611,1402, 531,1028,2871,4548,1375, 261,2948, 835,
+1190,4134, 353, 840,2684,1900,3082,1435,2109,1207,1674, 329,1872,2781,4055,2686,
+2104, 608,3318,2423,2957,2768,1108,3739,3512,3271,3985,2203,1771,3520,1418,2054,
+1681,1153, 225,1627,2929, 162,2050,2511,3687,1954, 124,1859,2431,1684,3032,2894,
+ 585,4805,3969,2869,2704,2088,2032,2095,3656,2635,4362,2209, 256, 518,2042,2105,
+3777,3657, 643,2298,1148,1779, 190, 989,3544, 414,  11,2135,2063,2979,1471, 403,
+3678, 126, 770,1563, 671,2499,3216,2877, 600,1179, 307,2805,4937,1268,1297,2694,
+ 252,4032,1448,1494,1331,1394, 127,2256, 222,1647,1035,1481,3056,1915,1048, 873,
+3651, 210,  33,1608,2516, 200,1520, 415, 102,   0,3389,1287, 817,  91,3299,2940,
+ 836,1814, 549,2197,1396,1669,2987,3582,2297,2848,4528,1070, 687,  20,1819, 121,
+1552,1364,1461,1968,2617,3540,2824,2083, 177, 948,4938,2291, 110,4549,2066, 648,
+3359,1755,2110,2114,4642,4845,1693,3937,3308,1257,1869,2123, 208,1804,3159,2992,
+2531,2549,3361,2418,1350,2347,2800,2568,1291,2036,2680,  72, 842,1990, 212,1233,
+1154,1586,  75,2027,3410,4900,1823,1337,2710,2676, 728,2810,1522,3026,4995, 157,
+ 755,1050,4022, 710, 785,1936,2194,2085,1406,2777,2400, 150,1250,4049,1206, 807,
+1910, 534, 529,3309,1721,1660, 274,  39,2827, 661,2670,1578, 925,3248,3815,1094,
+4278,4901,4252,  41,1150,3747,2572,2227,4501,3658,4902,3813,3357,3617,2884,2258,
+ 887, 538,4187,3199,1294,2439,3042,2329,2343,2497,1255, 107, 543,1527, 521,3478,
+3568, 194,5062,  15, 961,3870,1241,1192,2664,  66,5215,3260,2111,1295,1127,2152,
+3805,4135, 901,1164,1976, 398,1278, 530,1460, 748, 904,1054,1966,1426,  53,2909,
+ 509, 523,2279,1534, 536,1019, 239,1685, 460,2353, 673,1065,2401,3600,4298,2272,
+1272,2363, 284,1753,3679,4064,1695,  81, 815,2677,2757,2731,1386, 859, 500,4221,
+2190,2566, 757,1006,2519,2068,1166,1455, 337,2654,3203,1863,1682,1914,3025,1252,
+1409,1366, 847, 714,2834,2038,3209, 964,2970,1901, 885,2553,1078,1756,3049, 301,
+1572,3326, 688,2130,1996,2429,1805,1648,2930,3421,2750,3652,3088, 262,1158,1254,
+ 389,1641,1812, 526,1719, 923,2073,1073,1902, 468, 489,4625,1140, 857,2375,3070,
+3319,2863, 380, 116,1328,2693,1161,2244, 273,1212,1884,2769,3011,1775,1142, 461,
+3066,1200,2147,2212, 790, 702,2695,4222,1601,1058, 434,2338,5153,3640,  67,2360,
+4099,2502, 618,3472,1329, 416,1132, 830,2782,1807,2653,3211,3510,1662, 192,2124,
+ 296,3979,1739,1611,3684,  23, 118, 324, 446,1239,1225, 293,2520,3814,3795,2535,
+3116,  17,1074, 467,2692,2201, 387,2922,  45,1326,3055,1645,3659,2817, 958, 243,
+1903,2320,1339,2825,1784,3289, 356, 576, 865,2315,2381,3377,3916,1088,3122,1713,
+1655, 935, 628,4689,1034,1327, 441, 800, 720, 894,1979,2183,1528,5289,2702,1071,
+4046,3572,2399,1571,3281,  79, 761,1103, 327, 134, 758,1899,1371,1615, 879, 442,
+ 215,2605,2579, 173,2048,2485,1057,2975,3317,1097,2253,3801,4263,1403,1650,2946,
+ 814,4968,3487,1548,2644,1567,1285,   2, 295,2636,  97, 946,3576, 832, 141,4257,
+3273, 760,3821,3521,3156,2607, 949,1024,1733,1516,1803,1920,2125,2283,2665,3180,
+1501,2064,3560,2171,1592, 803,3518,1416, 732,3897,4258,1363,1362,2458, 119,1427,
+ 602,1525,2608,1605,1639,3175, 694,3064,  10, 465,  76,2000,4846,4208, 444,3781,
+1619,3353,2206,1273,3796, 740,2483, 320,1723,2377,3660,2619,1359,1137,1762,1724,
+2345,2842,1850,1862, 912, 821,1866, 612,2625,1735,2573,3369,1093, 844,  89, 937,
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+1917,1874,2477,4921, 148,  83,3438, 592,4245,2882,1822,1055, 741, 115,1496,1624,
+ 381,1638,4592,1020, 516,3214, 458, 947,4575,1432, 211,1514,2926,1865,2142, 189,
+ 852,1221,1400,1486, 882,2299,4036, 351,  28,1122, 700,6479,6480,6481,6482,6483,  # last 512
+#Everything below is of no interest for detection purpose
+5508,6484,3900,3414,3974,4441,4024,3537,4037,5628,5099,3633,6485,3148,6486,3636,
+5509,3257,5510,5973,5445,5872,4941,4403,3174,4627,5873,6276,2286,4230,5446,5874,
+5122,6102,6103,4162,5447,5123,5323,4849,6277,3980,3851,5066,4246,5774,5067,6278,
+3001,2807,5695,3346,5775,5974,5158,5448,6487,5975,5976,5776,3598,6279,5696,4806,
+4211,4154,6280,6488,6489,6490,6281,4212,5037,3374,4171,6491,4562,4807,4722,4827,
+5977,6104,4532,4079,5159,5324,5160,4404,3858,5359,5875,3975,4288,4610,3486,4512,
+5325,3893,5360,6282,6283,5560,2522,4231,5978,5186,5449,2569,3878,6284,5401,3578,
+4415,6285,4656,5124,5979,2506,4247,4449,3219,3417,4334,4969,4329,6492,4576,4828,
+4172,4416,4829,5402,6286,3927,3852,5361,4369,4830,4477,4867,5876,4173,6493,6105,
+4657,6287,6106,5877,5450,6494,4155,4868,5451,3700,5629,4384,6288,6289,5878,3189,
+4881,6107,6290,6495,4513,6496,4692,4515,4723,5100,3356,6497,6291,3810,4080,5561,
+3570,4430,5980,6498,4355,5697,6499,4724,6108,6109,3764,4050,5038,5879,4093,3226,
+6292,5068,5217,4693,3342,5630,3504,4831,4377,4466,4309,5698,4431,5777,6293,5778,
+4272,3706,6110,5326,3752,4676,5327,4273,5403,4767,5631,6500,5699,5880,3475,5039,
+6294,5562,5125,4348,4301,4482,4068,5126,4593,5700,3380,3462,5981,5563,3824,5404,
+4970,5511,3825,4738,6295,6501,5452,4516,6111,5881,5564,6502,6296,5982,6503,4213,
+4163,3454,6504,6112,4009,4450,6113,4658,6297,6114,3035,6505,6115,3995,4904,4739,
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+3491,6507,5127,5512,4709,4922,5984,5701,4726,4289,6508,4015,6116,5128,4628,3424,
+4241,5779,6299,4905,6509,6510,5454,5702,5780,6300,4365,4923,3971,6511,5161,3270,
+3158,5985,4100, 867,5129,5703,6117,5363,3695,3301,5513,4467,6118,6512,5455,4232,
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+6516,6517,3736,5988,5457,5989,4695,2457,5883,4551,5782,6303,6304,6305,5130,4971,
+6122,5163,6123,4870,3263,5365,3150,4871,6518,6306,5783,5069,5706,3513,3498,4409,
+5330,5632,5366,5458,5459,3991,5990,4502,3324,5991,5784,3696,4518,5633,4119,6519,
+4630,5634,4417,5707,4832,5992,3418,6124,5993,5567,4768,5218,6520,4595,3458,5367,
+6125,5635,6126,4202,6521,4740,4924,6307,3981,4069,4385,6308,3883,2675,4051,3834,
+4302,4483,5568,5994,4972,4101,5368,6309,5164,5884,3922,6127,6522,6523,5261,5460,
+5187,4164,5219,3538,5516,4111,3524,5995,6310,6311,5369,3181,3386,2484,5188,3464,
+5569,3627,5708,6524,5406,5165,4677,4492,6312,4872,4851,5885,4468,5996,6313,5709,
+5710,6128,2470,5886,6314,5293,4882,5785,3325,5461,5101,6129,5711,5786,6525,4906,
+6526,6527,4418,5887,5712,4808,2907,3701,5713,5888,6528,3765,5636,5331,6529,6530,
+3593,5889,3637,4943,3692,5714,5787,4925,6315,6130,5462,4405,6131,6132,6316,5262,
+6531,6532,5715,3859,5716,5070,4696,5102,3929,5788,3987,4792,5997,6533,6534,3920,
+4809,5000,5998,6535,2974,5370,6317,5189,5263,5717,3826,6536,3953,5001,4883,3190,
+5463,5890,4973,5999,4741,6133,6134,3607,5570,6000,4711,3362,3630,4552,5041,6318,
+6001,2950,2953,5637,4646,5371,4944,6002,2044,4120,3429,6319,6537,5103,4833,6538,
+6539,4884,4647,3884,6003,6004,4758,3835,5220,5789,4565,5407,6540,6135,5294,4697,
+4852,6320,6321,3206,4907,6541,6322,4945,6542,6136,6543,6323,6005,4631,3519,6544,
+5891,6545,5464,3784,5221,6546,5571,4659,6547,6324,6137,5190,6548,3853,6549,4016,
+4834,3954,6138,5332,3827,4017,3210,3546,4469,5408,5718,3505,4648,5790,5131,5638,
+5791,5465,4727,4318,6325,6326,5792,4553,4010,4698,3439,4974,3638,4335,3085,6006,
+5104,5042,5166,5892,5572,6327,4356,4519,5222,5573,5333,5793,5043,6550,5639,5071,
+4503,6328,6139,6551,6140,3914,3901,5372,6007,5640,4728,4793,3976,3836,4885,6552,
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+5893,5264,5894,4975,5466,5265,4699,4976,4370,4056,3492,5044,4886,6557,5795,4432,
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+5575,5797,5023,4810,5798,3732,5223,4712,5298,4084,5334,5468,6143,4052,4053,4336,
+4977,4794,6558,5335,4908,5576,5224,4233,5024,4128,5469,5225,4873,6008,5045,4729,
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+4189,3330,5899,4165,4420,5299,5720,5227,3347,6145,4081,6335,2876,3930,6146,3293,
+3786,3910,3998,5900,5300,5578,2840,6563,5901,5579,6147,3531,5374,6564,6565,5580,
+4759,5375,6566,6148,3559,5643,6336,6010,5517,6337,6338,5721,5902,3873,6011,6339,
+6567,5518,3868,3649,5722,6568,4771,4947,6569,6149,4812,6570,2853,5471,6340,6341,
+5644,4795,6342,6012,5723,6343,5724,6013,4349,6344,3160,6150,5193,4599,4514,4493,
+5168,4320,6345,4927,3666,4745,5169,5903,5005,4928,6346,5725,6014,4730,4203,5046,
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+4679,4174,4949,6154,4813,3787,3402,3822,3958,3215,3552,5268,4387,3933,4950,4359,
+6021,5910,5075,3579,6358,4234,4566,5521,6359,3613,5049,6022,5911,3375,3702,3178,
+4911,5339,4521,6582,6583,4395,3087,3811,5377,6023,6360,6155,4027,5171,5649,4421,
+4249,2804,6584,2270,6585,4000,4235,3045,6156,5137,5729,4140,4312,3886,6361,4330,
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+3038,4980,3631,6159,6160,4132,4680,6161,6362,3923,4379,5588,4255,6586,4121,6587,
+6363,4649,6364,3288,4773,4774,6162,6024,6365,3543,6588,4274,3107,3737,5050,5803,
+4797,4522,5589,5051,5730,3714,4887,5378,4001,4523,6163,5026,5522,4701,4175,2791,
+3760,6589,5473,4224,4133,3847,4814,4815,4775,3259,5416,6590,2738,6164,6025,5304,
+3733,5076,5650,4816,5590,6591,6165,6592,3934,5269,6593,3396,5340,6594,5804,3445,
+3602,4042,4488,5731,5732,3525,5591,4601,5196,6166,6026,5172,3642,4612,3202,4506,
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+2879,5305,4817,6595,5913,3104,3144,3903,4634,5341,3133,5110,5651,5805,6167,4057,
+5592,2945,4371,5593,6596,3474,4182,6367,6597,6168,4507,4279,6598,2822,6599,4777,
+4713,5594,3829,6169,3887,5417,6170,3653,5474,6368,4216,2971,5228,3790,4579,6369,
+5733,6600,6601,4951,4746,4555,6602,5418,5475,6027,3400,4665,5806,6171,4799,6028,
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+4618,5395,5354,5316,5955,6439,4962,6707,4526,6440,3465,4673,6067,6441,5682,6708,
+5435,5492,5758,5683,4619,4571,4674,4804,4893,4686,5493,4753,6233,6068,4269,6442,
+6234,5032,4705,5146,5243,5208,5848,6235,6443,4963,5033,4640,4226,6236,5849,3387,
+6444,6445,4436,4437,5850,4843,5494,4785,4894,6709,4361,6710,5091,5956,3331,6237,
+4987,5549,6069,6711,4342,3517,4473,5317,6070,6712,6071,4706,6446,5017,5355,6713,
+6714,4988,5436,6447,4734,5759,6715,4735,4547,4456,4754,6448,5851,6449,6450,3547,
+5852,5318,6451,6452,5092,4205,6716,6238,4620,4219,5611,6239,6072,4481,5760,5957,
+5958,4059,6240,6453,4227,4537,6241,5761,4030,4186,5244,5209,3761,4457,4876,3337,
+5495,5181,6242,5959,5319,5612,5684,5853,3493,5854,6073,4169,5613,5147,4895,6074,
+5210,6717,5182,6718,3830,6243,2798,3841,6075,6244,5855,5614,3604,4606,5496,5685,
+5118,5356,6719,6454,5960,5357,5961,6720,4145,3935,4621,5119,5962,4261,6721,6455,
+4786,5963,4375,4582,6245,6246,6247,6076,5437,4877,5856,3376,4380,6248,4160,6722,
+5148,6456,5211,6457,6723,4718,6458,6724,6249,5358,4044,3297,6459,6250,5857,5615,
+5497,5245,6460,5498,6725,6251,6252,5550,3793,5499,2959,5396,6461,6462,4572,5093,
+5500,5964,3806,4146,6463,4426,5762,5858,6077,6253,4755,3967,4220,5965,6254,4989,
+5501,6464,4352,6726,6078,4764,2290,5246,3906,5438,5283,3767,4964,2861,5763,5094,
+6255,6256,4622,5616,5859,5860,4707,6727,4285,4708,4824,5617,6257,5551,4787,5212,
+4965,4935,4687,6465,6728,6466,5686,6079,3494,4413,2995,5247,5966,5618,6729,5967,
+5764,5765,5687,5502,6730,6731,6080,5397,6467,4990,6258,6732,4538,5060,5619,6733,
+4719,5688,5439,5018,5149,5284,5503,6734,6081,4607,6259,5120,3645,5861,4583,6260,
+4584,4675,5620,4098,5440,6261,4863,2379,3306,4585,5552,5689,4586,5285,6735,4864,
+6736,5286,6082,6737,4623,3010,4788,4381,4558,5621,4587,4896,3698,3161,5248,4353,
+4045,6262,3754,5183,4588,6738,6263,6739,6740,5622,3936,6741,6468,6742,6264,5095,
+6469,4991,5968,6743,4992,6744,6083,4897,6745,4256,5766,4307,3108,3968,4444,5287,
+3889,4343,6084,4510,6085,4559,6086,4898,5969,6746,5623,5061,4919,5249,5250,5504,
+5441,6265,5320,4878,3242,5862,5251,3428,6087,6747,4237,5624,5442,6266,5553,4539,
+6748,2585,3533,5398,4262,6088,5150,4736,4438,6089,6267,5505,4966,6749,6268,6750,
+6269,5288,5554,3650,6090,6091,4624,6092,5690,6751,5863,4270,5691,4277,5555,5864,
+6752,5692,4720,4865,6470,5151,4688,4825,6753,3094,6754,6471,3235,4653,6755,5213,
+5399,6756,3201,4589,5865,4967,6472,5866,6473,5019,3016,6757,5321,4756,3957,4573,
+6093,4993,5767,4721,6474,6758,5625,6759,4458,6475,6270,6760,5556,4994,5214,5252,
+6271,3875,5768,6094,5034,5506,4376,5769,6761,2120,6476,5253,5770,6762,5771,5970,
+3990,5971,5557,5558,5772,6477,6095,2787,4641,5972,5121,6096,6097,6272,6763,3703,
+5867,5507,6273,4206,6274,4789,6098,6764,3619,3646,3833,3804,2394,3788,4936,3978,
+4866,4899,6099,6100,5559,6478,6765,3599,5868,6101,5869,5870,6275,6766,4527,6767)
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py
new file mode 100644
index 0000000..0325a2d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/gb2312prober.py
@@ -0,0 +1,41 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+# 
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import GB2312DistributionAnalysis
+from .mbcssm import GB2312SMModel
+
+class GB2312Prober(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(GB2312SMModel)
+        self._mDistributionAnalyzer = GB2312DistributionAnalysis()
+        self.reset()
+
+    def get_charset_name(self):
+        return "GB2312"
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py
new file mode 100644
index 0000000..ba225c5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/hebrewprober.py
@@ -0,0 +1,283 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+#          Shy Shalom
+# Portions created by the Initial Developer are Copyright (C) 2005
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .constants import eNotMe, eDetecting
+from .compat import wrap_ord
+
+# This prober doesn't actually recognize a language or a charset.
+# It is a helper prober for the use of the Hebrew model probers
+
+### General ideas of the Hebrew charset recognition ###
+#
+# Four main charsets exist in Hebrew:
+# "ISO-8859-8" - Visual Hebrew
+# "windows-1255" - Logical Hebrew
+# "ISO-8859-8-I" - Logical Hebrew
+# "x-mac-hebrew" - ?? Logical Hebrew ??
+#
+# Both "ISO" charsets use a completely identical set of code points, whereas
+# "windows-1255" and "x-mac-hebrew" are two different proper supersets of
+# these code points. windows-1255 defines additional characters in the range
+# 0x80-0x9F as some misc punctuation marks as well as some Hebrew-specific
+# diacritics and additional 'Yiddish' ligature letters in the range 0xc0-0xd6.
+# x-mac-hebrew defines similar additional code points but with a different
+# mapping.
+#
+# As far as an average Hebrew text with no diacritics is concerned, all four
+# charsets are identical with respect to code points. Meaning that for the
+# main Hebrew alphabet, all four map the same values to all 27 Hebrew letters
+# (including final letters).
+#
+# The dominant difference between these charsets is their directionality.
+# "Visual" directionality means that the text is ordered as if the renderer is
+# not aware of a BIDI rendering algorithm. The renderer sees the text and
+# draws it from left to right. The text itself when ordered naturally is read
+# backwards. A buffer of Visual Hebrew generally looks like so:
+# "[last word of first line spelled backwards] [whole line ordered backwards
+# and spelled backwards] [first word of first line spelled backwards]
+# [end of line] [last word of second line] ... etc' "
+# adding punctuation marks, numbers and English text to visual text is
+# naturally also "visual" and from left to right.
+#
+# "Logical" directionality means the text is ordered "naturally" according to
+# the order it is read. It is the responsibility of the renderer to display
+# the text from right to left. A BIDI algorithm is used to place general
+# punctuation marks, numbers and English text in the text.
+#
+# Texts in x-mac-hebrew are almost impossible to find on the Internet. From
+# what little evidence I could find, it seems that its general directionality
+# is Logical.
+#
+# To sum up all of the above, the Hebrew probing mechanism knows about two
+# charsets:
+# Visual Hebrew - "ISO-8859-8" - backwards text - Words and sentences are
+#    backwards while line order is natural. For charset recognition purposes
+#    the line order is unimportant (In fact, for this implementation, even
+#    word order is unimportant).
+# Logical Hebrew - "windows-1255" - normal, naturally ordered text.
+#
+# "ISO-8859-8-I" is a subset of windows-1255 and doesn't need to be
+#    specifically identified.
+# "x-mac-hebrew" is also identified as windows-1255. A text in x-mac-hebrew
+#    that contain special punctuation marks or diacritics is displayed with
+#    some unconverted characters showing as question marks. This problem might
+#    be corrected using another model prober for x-mac-hebrew. Due to the fact
+#    that x-mac-hebrew texts are so rare, writing another model prober isn't
+#    worth the effort and performance hit.
+#
+#### The Prober ####
+#
+# The prober is divided between two SBCharSetProbers and a HebrewProber,
+# all of which are managed, created, fed data, inquired and deleted by the
+# SBCSGroupProber. The two SBCharSetProbers identify that the text is in
+# fact some kind of Hebrew, Logical or Visual. The final decision about which
+# one is it is made by the HebrewProber by combining final-letter scores
+# with the scores of the two SBCharSetProbers to produce a final answer.
+#
+# The SBCSGroupProber is responsible for stripping the original text of HTML
+# tags, English characters, numbers, low-ASCII punctuation characters, spaces
+# and new lines. It reduces any sequence of such characters to a single space.
+# The buffer fed to each prober in the SBCS group prober is pure text in
+# high-ASCII.
+# The two SBCharSetProbers (model probers) share the same language model:
+# Win1255Model.
+# The first SBCharSetProber uses the model normally as any other
+# SBCharSetProber does, to recognize windows-1255, upon which this model was
+# built. The second SBCharSetProber is told to make the pair-of-letter
+# lookup in the language model backwards. This in practice exactly simulates
+# a visual Hebrew model using the windows-1255 logical Hebrew model.
+#
+# The HebrewProber is not using any language model. All it does is look for
+# final-letter evidence suggesting the text is either logical Hebrew or visual
+# Hebrew. Disjointed from the model probers, the results of the HebrewProber
+# alone are meaningless. HebrewProber always returns 0.00 as confidence
+# since it never identifies a charset by itself. Instead, the pointer to the
+# HebrewProber is passed to the model probers as a helper "Name Prober".
+# When the Group prober receives a positive identification from any prober,
+# it asks for the name of the charset identified. If the prober queried is a
+# Hebrew model prober, the model prober forwards the call to the
+# HebrewProber to make the final decision. In the HebrewProber, the
+# decision is made according to the final-letters scores maintained and Both
+# model probers scores. The answer is returned in the form of the name of the
+# charset identified, either "windows-1255" or "ISO-8859-8".
+
+# windows-1255 / ISO-8859-8 code points of interest
+FINAL_KAF = 0xea
+NORMAL_KAF = 0xeb
+FINAL_MEM = 0xed
+NORMAL_MEM = 0xee
+FINAL_NUN = 0xef
+NORMAL_NUN = 0xf0
+FINAL_PE = 0xf3
+NORMAL_PE = 0xf4
+FINAL_TSADI = 0xf5
+NORMAL_TSADI = 0xf6
+
+# Minimum Visual vs Logical final letter score difference.
+# If the difference is below this, don't rely solely on the final letter score
+# distance.
+MIN_FINAL_CHAR_DISTANCE = 5
+
+# Minimum Visual vs Logical model score difference.
+# If the difference is below this, don't rely at all on the model score
+# distance.
+MIN_MODEL_DISTANCE = 0.01
+
+VISUAL_HEBREW_NAME = "ISO-8859-8"
+LOGICAL_HEBREW_NAME = "windows-1255"
+
+
+class HebrewProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mLogicalProber = None
+        self._mVisualProber = None
+        self.reset()
+
+    def reset(self):
+        self._mFinalCharLogicalScore = 0
+        self._mFinalCharVisualScore = 0
+        # The two last characters seen in the previous buffer,
+        # mPrev and mBeforePrev are initialized to space in order to simulate
+        # a word delimiter at the beginning of the data
+        self._mPrev = ' '
+        self._mBeforePrev = ' '
+        # These probers are owned by the group prober.
+
+    def set_model_probers(self, logicalProber, visualProber):
+        self._mLogicalProber = logicalProber
+        self._mVisualProber = visualProber
+
+    def is_final(self, c):
+        return wrap_ord(c) in [FINAL_KAF, FINAL_MEM, FINAL_NUN, FINAL_PE,
+                               FINAL_TSADI]
+
+    def is_non_final(self, c):
+        # The normal Tsadi is not a good Non-Final letter due to words like
+        # 'lechotet' (to chat) containing an apostrophe after the tsadi. This
+        # apostrophe is converted to a space in FilterWithoutEnglishLetters
+        # causing the Non-Final tsadi to appear at an end of a word even
+        # though this is not the case in the original text.
+        # The letters Pe and Kaf rarely display a related behavior of not being
+        # a good Non-Final letter. Words like 'Pop', 'Winamp' and 'Mubarak'
+        # for example legally end with a Non-Final Pe or Kaf. However, the
+        # benefit of these letters as Non-Final letters outweighs the damage
+        # since these words are quite rare.
+        return wrap_ord(c) in [NORMAL_KAF, NORMAL_MEM, NORMAL_NUN, NORMAL_PE]
+
+    def feed(self, aBuf):
+        # Final letter analysis for logical-visual decision.
+        # Look for evidence that the received buffer is either logical Hebrew
+        # or visual Hebrew.
+        # The following cases are checked:
+        # 1) A word longer than 1 letter, ending with a final letter. This is
+        #    an indication that the text is laid out "naturally" since the
+        #    final letter really appears at the end. +1 for logical score.
+        # 2) A word longer than 1 letter, ending with a Non-Final letter. In
+        #    normal Hebrew, words ending with Kaf, Mem, Nun, Pe or Tsadi,
+        #    should not end with the Non-Final form of that letter. Exceptions
+        #    to this rule are mentioned above in isNonFinal(). This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score
+        # 3) A word longer than 1 letter, starting with a final letter. Final
+        #    letters should not appear at the beginning of a word. This is an
+        #    indication that the text is laid out backwards. +1 for visual
+        #    score.
+        #
+        # The visual score and logical score are accumulated throughout the
+        # text and are finally checked against each other in GetCharSetName().
+        # No checking for final letters in the middle of words is done since
+        # that case is not an indication for either Logical or Visual text.
+        #
+        # We automatically filter out all 7-bit characters (replace them with
+        # spaces) so the word boundary detection works properly. [MAP]
+
+        if self.get_state() == eNotMe:
+            # Both model probers say it's not them. No reason to continue.
+            return eNotMe
+
+        aBuf = self.filter_high_bit_only(aBuf)
+
+        for cur in aBuf:
+            if cur == ' ':
+                # We stand on a space - a word just ended
+                if self._mBeforePrev != ' ':
+                    # next-to-last char was not a space so self._mPrev is not a
+                    # 1 letter word
+                    if self.is_final(self._mPrev):
+                        # case (1) [-2:not space][-1:final letter][cur:space]
+                        self._mFinalCharLogicalScore += 1
+                    elif self.is_non_final(self._mPrev):
+                        # case (2) [-2:not space][-1:Non-Final letter][
+                        #  cur:space]
+                        self._mFinalCharVisualScore += 1
+            else:
+                # Not standing on a space
+                if ((self._mBeforePrev == ' ') and
+                        (self.is_final(self._mPrev)) and (cur != ' ')):
+                    # case (3) [-2:space][-1:final letter][cur:not space]
+                    self._mFinalCharVisualScore += 1
+            self._mBeforePrev = self._mPrev
+            self._mPrev = cur
+
+        # Forever detecting, till the end or until both model probers return
+        # eNotMe (handled above)
+        return eDetecting
+
+    def get_charset_name(self):
+        # Make the decision: is it Logical or Visual?
+        # If the final letter score distance is dominant enough, rely on it.
+        finalsub = self._mFinalCharLogicalScore - self._mFinalCharVisualScore
+        if finalsub >= MIN_FINAL_CHAR_DISTANCE:
+            return LOGICAL_HEBREW_NAME
+        if finalsub <= -MIN_FINAL_CHAR_DISTANCE:
+            return VISUAL_HEBREW_NAME
+
+        # It's not dominant enough, try to rely on the model scores instead.
+        modelsub = (self._mLogicalProber.get_confidence()
+                    - self._mVisualProber.get_confidence())
+        if modelsub > MIN_MODEL_DISTANCE:
+            return LOGICAL_HEBREW_NAME
+        if modelsub < -MIN_MODEL_DISTANCE:
+            return VISUAL_HEBREW_NAME
+
+        # Still no good, back to final letter distance, maybe it'll save the
+        # day.
+        if finalsub < 0.0:
+            return VISUAL_HEBREW_NAME
+
+        # (finalsub > 0 - Logical) or (don't know what to do) default to
+        # Logical.
+        return LOGICAL_HEBREW_NAME
+
+    def get_state(self):
+        # Remain active as long as any of the model probers are active.
+        if (self._mLogicalProber.get_state() == eNotMe) and \
+           (self._mVisualProber.get_state() == eNotMe):
+            return eNotMe
+        return eDetecting
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py
new file mode 100644
index 0000000..064345b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jisfreq.py
@@ -0,0 +1,569 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# Sampling from about 20M text materials include literature and computer technology
+#
+# Japanese frequency table, applied to both S-JIS and EUC-JP
+# They are sorted in order.
+
+# 128  --> 0.77094
+# 256  --> 0.85710
+# 512  --> 0.92635
+# 1024 --> 0.97130
+# 2048 --> 0.99431
+#
+# Ideal Distribution Ratio = 0.92635 / (1-0.92635) = 12.58
+# Random Distribution Ration = 512 / (2965+62+83+86-512) = 0.191
+#
+# Typical Distribution Ratio, 25% of IDR
+
+JIS_TYPICAL_DISTRIBUTION_RATIO = 3.0
+
+# Char to FreqOrder table ,
+JIS_TABLE_SIZE = 4368
+
+JISCharToFreqOrder = (
+  40,   1,   6, 182, 152, 180, 295,2127, 285, 381,3295,4304,3068,4606,3165,3510, #   16
+3511,1822,2785,4607,1193,2226,5070,4608, 171,2996,1247,  18, 179,5071, 856,1661, #   32
+1262,5072, 619, 127,3431,3512,3230,1899,1700, 232, 228,1294,1298, 284, 283,2041, #   48
+2042,1061,1062,  48,  49,  44,  45, 433, 434,1040,1041, 996, 787,2997,1255,4305, #   64
+2108,4609,1684,1648,5073,5074,5075,5076,5077,5078,3687,5079,4610,5080,3927,3928, #   80
+5081,3296,3432, 290,2285,1471,2187,5082,2580,2825,1303,2140,1739,1445,2691,3375, #   96
+1691,3297,4306,4307,4611, 452,3376,1182,2713,3688,3069,4308,5083,5084,5085,5086, #  112
+5087,5088,5089,5090,5091,5092,5093,5094,5095,5096,5097,5098,5099,5100,5101,5102, #  128
+5103,5104,5105,5106,5107,5108,5109,5110,5111,5112,4097,5113,5114,5115,5116,5117, #  144
+5118,5119,5120,5121,5122,5123,5124,5125,5126,5127,5128,5129,5130,5131,5132,5133, #  160
+5134,5135,5136,5137,5138,5139,5140,5141,5142,5143,5144,5145,5146,5147,5148,5149, #  176
+5150,5151,5152,4612,5153,5154,5155,5156,5157,5158,5159,5160,5161,5162,5163,5164, #  192
+5165,5166,5167,5168,5169,5170,5171,5172,5173,5174,5175,1472, 598, 618, 820,1205, #  208
+1309,1412,1858,1307,1692,5176,5177,5178,5179,5180,5181,5182,1142,1452,1234,1172, #  224
+1875,2043,2149,1793,1382,2973, 925,2404,1067,1241, 960,1377,2935,1491, 919,1217, #  240
+1865,2030,1406,1499,2749,4098,5183,5184,5185,5186,5187,5188,2561,4099,3117,1804, #  256
+2049,3689,4309,3513,1663,5189,3166,3118,3298,1587,1561,3433,5190,3119,1625,2998, #  272
+3299,4613,1766,3690,2786,4614,5191,5192,5193,5194,2161,  26,3377,   2,3929,  20, #  288
+3691,  47,4100,  50,  17,  16,  35, 268,  27, 243,  42, 155,  24, 154,  29, 184, #  304
+   4,  91,  14,  92,  53, 396,  33, 289,   9,  37,  64, 620,  21,  39, 321,   5, #  320
+  12,  11,  52,  13,   3, 208, 138,   0,   7,  60, 526, 141, 151,1069, 181, 275, #  336
+1591,  83, 132,1475, 126, 331, 829,  15,  69, 160,  59,  22, 157,  55,1079, 312, #  352
+ 109,  38,  23,  25,  10,  19,  79,5195,  61, 382,1124,   8,  30,5196,5197,5198, #  368
+5199,5200,5201,5202,5203,5204,5205,5206,  89,  62,  74,  34,2416, 112, 139, 196, #  384
+ 271, 149,  84, 607, 131, 765,  46,  88, 153, 683,  76, 874, 101, 258,  57,  80, #  400
+  32, 364, 121,1508, 169,1547,  68, 235, 145,2999,  41, 360,3027,  70,  63,  31, #  416
+  43, 259, 262,1383,  99, 533, 194,  66,  93, 846, 217, 192,  56, 106,  58, 565, #  432
+ 280, 272, 311, 256, 146,  82, 308,  71, 100, 128, 214, 655, 110, 261, 104,1140, #  448
+  54,  51,  36,  87,  67,3070, 185,2618,2936,2020,  28,1066,2390,2059,5207,5208, #  464
+5209,5210,5211,5212,5213,5214,5215,5216,4615,5217,5218,5219,5220,5221,5222,5223, #  480
+5224,5225,5226,5227,5228,5229,5230,5231,5232,5233,5234,5235,5236,3514,5237,5238, #  496
+5239,5240,5241,5242,5243,5244,2297,2031,4616,4310,3692,5245,3071,5246,3598,5247, #  512
+4617,3231,3515,5248,4101,4311,4618,3808,4312,4102,5249,4103,4104,3599,5250,5251, #  528
+5252,5253,5254,5255,5256,5257,5258,5259,5260,5261,5262,5263,5264,5265,5266,5267, #  544
+5268,5269,5270,5271,5272,5273,5274,5275,5276,5277,5278,5279,5280,5281,5282,5283, #  560
+5284,5285,5286,5287,5288,5289,5290,5291,5292,5293,5294,5295,5296,5297,5298,5299, #  576
+5300,5301,5302,5303,5304,5305,5306,5307,5308,5309,5310,5311,5312,5313,5314,5315, #  592
+5316,5317,5318,5319,5320,5321,5322,5323,5324,5325,5326,5327,5328,5329,5330,5331, #  608
+5332,5333,5334,5335,5336,5337,5338,5339,5340,5341,5342,5343,5344,5345,5346,5347, #  624
+5348,5349,5350,5351,5352,5353,5354,5355,5356,5357,5358,5359,5360,5361,5362,5363, #  640
+5364,5365,5366,5367,5368,5369,5370,5371,5372,5373,5374,5375,5376,5377,5378,5379, #  656
+5380,5381, 363, 642,2787,2878,2788,2789,2316,3232,2317,3434,2011, 165,1942,3930, #  672
+3931,3932,3933,5382,4619,5383,4620,5384,5385,5386,5387,5388,5389,5390,5391,5392, #  688
+5393,5394,5395,5396,5397,5398,5399,5400,5401,5402,5403,5404,5405,5406,5407,5408, #  704
+5409,5410,5411,5412,5413,5414,5415,5416,5417,5418,5419,5420,5421,5422,5423,5424, #  720
+5425,5426,5427,5428,5429,5430,5431,5432,5433,5434,5435,5436,5437,5438,5439,5440, #  736
+5441,5442,5443,5444,5445,5446,5447,5448,5449,5450,5451,5452,5453,5454,5455,5456, #  752
+5457,5458,5459,5460,5461,5462,5463,5464,5465,5466,5467,5468,5469,5470,5471,5472, #  768
+5473,5474,5475,5476,5477,5478,5479,5480,5481,5482,5483,5484,5485,5486,5487,5488, #  784
+5489,5490,5491,5492,5493,5494,5495,5496,5497,5498,5499,5500,5501,5502,5503,5504, #  800
+5505,5506,5507,5508,5509,5510,5511,5512,5513,5514,5515,5516,5517,5518,5519,5520, #  816
+5521,5522,5523,5524,5525,5526,5527,5528,5529,5530,5531,5532,5533,5534,5535,5536, #  832
+5537,5538,5539,5540,5541,5542,5543,5544,5545,5546,5547,5548,5549,5550,5551,5552, #  848
+5553,5554,5555,5556,5557,5558,5559,5560,5561,5562,5563,5564,5565,5566,5567,5568, #  864
+5569,5570,5571,5572,5573,5574,5575,5576,5577,5578,5579,5580,5581,5582,5583,5584, #  880
+5585,5586,5587,5588,5589,5590,5591,5592,5593,5594,5595,5596,5597,5598,5599,5600, #  896
+5601,5602,5603,5604,5605,5606,5607,5608,5609,5610,5611,5612,5613,5614,5615,5616, #  912
+5617,5618,5619,5620,5621,5622,5623,5624,5625,5626,5627,5628,5629,5630,5631,5632, #  928
+5633,5634,5635,5636,5637,5638,5639,5640,5641,5642,5643,5644,5645,5646,5647,5648, #  944
+5649,5650,5651,5652,5653,5654,5655,5656,5657,5658,5659,5660,5661,5662,5663,5664, #  960
+5665,5666,5667,5668,5669,5670,5671,5672,5673,5674,5675,5676,5677,5678,5679,5680, #  976
+5681,5682,5683,5684,5685,5686,5687,5688,5689,5690,5691,5692,5693,5694,5695,5696, #  992
+5697,5698,5699,5700,5701,5702,5703,5704,5705,5706,5707,5708,5709,5710,5711,5712, # 1008
+5713,5714,5715,5716,5717,5718,5719,5720,5721,5722,5723,5724,5725,5726,5727,5728, # 1024
+5729,5730,5731,5732,5733,5734,5735,5736,5737,5738,5739,5740,5741,5742,5743,5744, # 1040
+5745,5746,5747,5748,5749,5750,5751,5752,5753,5754,5755,5756,5757,5758,5759,5760, # 1056
+5761,5762,5763,5764,5765,5766,5767,5768,5769,5770,5771,5772,5773,5774,5775,5776, # 1072
+5777,5778,5779,5780,5781,5782,5783,5784,5785,5786,5787,5788,5789,5790,5791,5792, # 1088
+5793,5794,5795,5796,5797,5798,5799,5800,5801,5802,5803,5804,5805,5806,5807,5808, # 1104
+5809,5810,5811,5812,5813,5814,5815,5816,5817,5818,5819,5820,5821,5822,5823,5824, # 1120
+5825,5826,5827,5828,5829,5830,5831,5832,5833,5834,5835,5836,5837,5838,5839,5840, # 1136
+5841,5842,5843,5844,5845,5846,5847,5848,5849,5850,5851,5852,5853,5854,5855,5856, # 1152
+5857,5858,5859,5860,5861,5862,5863,5864,5865,5866,5867,5868,5869,5870,5871,5872, # 1168
+5873,5874,5875,5876,5877,5878,5879,5880,5881,5882,5883,5884,5885,5886,5887,5888, # 1184
+5889,5890,5891,5892,5893,5894,5895,5896,5897,5898,5899,5900,5901,5902,5903,5904, # 1200
+5905,5906,5907,5908,5909,5910,5911,5912,5913,5914,5915,5916,5917,5918,5919,5920, # 1216
+5921,5922,5923,5924,5925,5926,5927,5928,5929,5930,5931,5932,5933,5934,5935,5936, # 1232
+5937,5938,5939,5940,5941,5942,5943,5944,5945,5946,5947,5948,5949,5950,5951,5952, # 1248
+5953,5954,5955,5956,5957,5958,5959,5960,5961,5962,5963,5964,5965,5966,5967,5968, # 1264
+5969,5970,5971,5972,5973,5974,5975,5976,5977,5978,5979,5980,5981,5982,5983,5984, # 1280
+5985,5986,5987,5988,5989,5990,5991,5992,5993,5994,5995,5996,5997,5998,5999,6000, # 1296
+6001,6002,6003,6004,6005,6006,6007,6008,6009,6010,6011,6012,6013,6014,6015,6016, # 1312
+6017,6018,6019,6020,6021,6022,6023,6024,6025,6026,6027,6028,6029,6030,6031,6032, # 1328
+6033,6034,6035,6036,6037,6038,6039,6040,6041,6042,6043,6044,6045,6046,6047,6048, # 1344
+6049,6050,6051,6052,6053,6054,6055,6056,6057,6058,6059,6060,6061,6062,6063,6064, # 1360
+6065,6066,6067,6068,6069,6070,6071,6072,6073,6074,6075,6076,6077,6078,6079,6080, # 1376
+6081,6082,6083,6084,6085,6086,6087,6088,6089,6090,6091,6092,6093,6094,6095,6096, # 1392
+6097,6098,6099,6100,6101,6102,6103,6104,6105,6106,6107,6108,6109,6110,6111,6112, # 1408
+6113,6114,2044,2060,4621, 997,1235, 473,1186,4622, 920,3378,6115,6116, 379,1108, # 1424
+4313,2657,2735,3934,6117,3809, 636,3233, 573,1026,3693,3435,2974,3300,2298,4105, # 1440
+ 854,2937,2463, 393,2581,2417, 539, 752,1280,2750,2480, 140,1161, 440, 708,1569, # 1456
+ 665,2497,1746,1291,1523,3000, 164,1603, 847,1331, 537,1997, 486, 508,1693,2418, # 1472
+1970,2227, 878,1220, 299,1030, 969, 652,2751, 624,1137,3301,2619,  65,3302,2045, # 1488
+1761,1859,3120,1930,3694,3516, 663,1767, 852, 835,3695, 269, 767,2826,2339,1305, # 1504
+ 896,1150, 770,1616,6118, 506,1502,2075,1012,2519, 775,2520,2975,2340,2938,4314, # 1520
+3028,2086,1224,1943,2286,6119,3072,4315,2240,1273,1987,3935,1557, 175, 597, 985, # 1536
+3517,2419,2521,1416,3029, 585, 938,1931,1007,1052,1932,1685,6120,3379,4316,4623, # 1552
+ 804, 599,3121,1333,2128,2539,1159,1554,2032,3810, 687,2033,2904, 952, 675,1467, # 1568
+3436,6121,2241,1096,1786,2440,1543,1924, 980,1813,2228, 781,2692,1879, 728,1918, # 1584
+3696,4624, 548,1950,4625,1809,1088,1356,3303,2522,1944, 502, 972, 373, 513,2827, # 1600
+ 586,2377,2391,1003,1976,1631,6122,2464,1084, 648,1776,4626,2141, 324, 962,2012, # 1616
+2177,2076,1384, 742,2178,1448,1173,1810, 222, 102, 301, 445, 125,2420, 662,2498, # 1632
+ 277, 200,1476,1165,1068, 224,2562,1378,1446, 450,1880, 659, 791, 582,4627,2939, # 1648
+3936,1516,1274, 555,2099,3697,1020,1389,1526,3380,1762,1723,1787,2229, 412,2114, # 1664
+1900,2392,3518, 512,2597, 427,1925,2341,3122,1653,1686,2465,2499, 697, 330, 273, # 1680
+ 380,2162, 951, 832, 780, 991,1301,3073, 965,2270,3519, 668,2523,2636,1286, 535, # 1696
+1407, 518, 671, 957,2658,2378, 267, 611,2197,3030,6123, 248,2299, 967,1799,2356, # 1712
+ 850,1418,3437,1876,1256,1480,2828,1718,6124,6125,1755,1664,2405,6126,4628,2879, # 1728
+2829, 499,2179, 676,4629, 557,2329,2214,2090, 325,3234, 464, 811,3001, 992,2342, # 1744
+2481,1232,1469, 303,2242, 466,1070,2163, 603,1777,2091,4630,2752,4631,2714, 322, # 1760
+2659,1964,1768, 481,2188,1463,2330,2857,3600,2092,3031,2421,4632,2318,2070,1849, # 1776
+2598,4633,1302,2254,1668,1701,2422,3811,2905,3032,3123,2046,4106,1763,1694,4634, # 1792
+1604, 943,1724,1454, 917, 868,2215,1169,2940, 552,1145,1800,1228,1823,1955, 316, # 1808
+1080,2510, 361,1807,2830,4107,2660,3381,1346,1423,1134,4108,6127, 541,1263,1229, # 1824
+1148,2540, 545, 465,1833,2880,3438,1901,3074,2482, 816,3937, 713,1788,2500, 122, # 1840
+1575, 195,1451,2501,1111,6128, 859, 374,1225,2243,2483,4317, 390,1033,3439,3075, # 1856
+2524,1687, 266, 793,1440,2599, 946, 779, 802, 507, 897,1081, 528,2189,1292, 711, # 1872
+1866,1725,1167,1640, 753, 398,2661,1053, 246, 348,4318, 137,1024,3440,1600,2077, # 1888
+2129, 825,4319, 698, 238, 521, 187,2300,1157,2423,1641,1605,1464,1610,1097,2541, # 1904
+1260,1436, 759,2255,1814,2150, 705,3235, 409,2563,3304, 561,3033,2005,2564, 726, # 1920
+1956,2343,3698,4109, 949,3812,3813,3520,1669, 653,1379,2525, 881,2198, 632,2256, # 1936
+1027, 778,1074, 733,1957, 514,1481,2466, 554,2180, 702,3938,1606,1017,1398,6129, # 1952
+1380,3521, 921, 993,1313, 594, 449,1489,1617,1166, 768,1426,1360, 495,1794,3601, # 1968
+1177,3602,1170,4320,2344, 476, 425,3167,4635,3168,1424, 401,2662,1171,3382,1998, # 1984
+1089,4110, 477,3169, 474,6130,1909, 596,2831,1842, 494, 693,1051,1028,1207,3076, # 2000
+ 606,2115, 727,2790,1473,1115, 743,3522, 630, 805,1532,4321,2021, 366,1057, 838, # 2016
+ 684,1114,2142,4322,2050,1492,1892,1808,2271,3814,2424,1971,1447,1373,3305,1090, # 2032
+1536,3939,3523,3306,1455,2199, 336, 369,2331,1035, 584,2393, 902, 718,2600,6131, # 2048
+2753, 463,2151,1149,1611,2467, 715,1308,3124,1268, 343,1413,3236,1517,1347,2663, # 2064
+2093,3940,2022,1131,1553,2100,2941,1427,3441,2942,1323,2484,6132,1980, 872,2368, # 2080
+2441,2943, 320,2369,2116,1082, 679,1933,3941,2791,3815, 625,1143,2023, 422,2200, # 2096
+3816,6133, 730,1695, 356,2257,1626,2301,2858,2637,1627,1778, 937, 883,2906,2693, # 2112
+3002,1769,1086, 400,1063,1325,3307,2792,4111,3077, 456,2345,1046, 747,6134,1524, # 2128
+ 884,1094,3383,1474,2164,1059, 974,1688,2181,2258,1047, 345,1665,1187, 358, 875, # 2144
+3170, 305, 660,3524,2190,1334,1135,3171,1540,1649,2542,1527, 927, 968,2793, 885, # 2160
+1972,1850, 482, 500,2638,1218,1109,1085,2543,1654,2034, 876,  78,2287,1482,1277, # 2176
+ 861,1675,1083,1779, 724,2754, 454, 397,1132,1612,2332, 893, 672,1237, 257,2259, # 2192
+2370, 135,3384, 337,2244, 547, 352, 340, 709,2485,1400, 788,1138,2511, 540, 772, # 2208
+1682,2260,2272,2544,2013,1843,1902,4636,1999,1562,2288,4637,2201,1403,1533, 407, # 2224
+ 576,3308,1254,2071, 978,3385, 170, 136,1201,3125,2664,3172,2394, 213, 912, 873, # 2240
+3603,1713,2202, 699,3604,3699, 813,3442, 493, 531,1054, 468,2907,1483, 304, 281, # 2256
+4112,1726,1252,2094, 339,2319,2130,2639, 756,1563,2944, 748, 571,2976,1588,2425, # 2272
+2715,1851,1460,2426,1528,1392,1973,3237, 288,3309, 685,3386, 296, 892,2716,2216, # 2288
+1570,2245, 722,1747,2217, 905,3238,1103,6135,1893,1441,1965, 251,1805,2371,3700, # 2304
+2601,1919,1078,  75,2182,1509,1592,1270,2640,4638,2152,6136,3310,3817, 524, 706, # 2320
+1075, 292,3818,1756,2602, 317,  98,3173,3605,3525,1844,2218,3819,2502, 814, 567, # 2336
+ 385,2908,1534,6137, 534,1642,3239, 797,6138,1670,1529, 953,4323, 188,1071, 538, # 2352
+ 178, 729,3240,2109,1226,1374,2000,2357,2977, 731,2468,1116,2014,2051,6139,1261, # 2368
+1593, 803,2859,2736,3443, 556, 682, 823,1541,6140,1369,2289,1706,2794, 845, 462, # 2384
+2603,2665,1361, 387, 162,2358,1740, 739,1770,1720,1304,1401,3241,1049, 627,1571, # 2400
+2427,3526,1877,3942,1852,1500, 431,1910,1503, 677, 297,2795, 286,1433,1038,1198, # 2416
+2290,1133,1596,4113,4639,2469,1510,1484,3943,6141,2442, 108, 712,4640,2372, 866, # 2432
+3701,2755,3242,1348, 834,1945,1408,3527,2395,3243,1811, 824, 994,1179,2110,1548, # 2448
+1453, 790,3003, 690,4324,4325,2832,2909,3820,1860,3821, 225,1748, 310, 346,1780, # 2464
+2470, 821,1993,2717,2796, 828, 877,3528,2860,2471,1702,2165,2910,2486,1789, 453, # 2480
+ 359,2291,1676,  73,1164,1461,1127,3311, 421, 604, 314,1037, 589, 116,2487, 737, # 2496
+ 837,1180, 111, 244, 735,6142,2261,1861,1362, 986, 523, 418, 581,2666,3822, 103, # 2512
+ 855, 503,1414,1867,2488,1091, 657,1597, 979, 605,1316,4641,1021,2443,2078,2001, # 2528
+1209,  96, 587,2166,1032, 260,1072,2153, 173,  94, 226,3244, 819,2006,4642,4114, # 2544
+2203, 231,1744, 782,  97,2667, 786,3387, 887, 391, 442,2219,4326,1425,6143,2694, # 2560
+ 633,1544,1202, 483,2015, 592,2052,1958,2472,1655, 419, 129,4327,3444,3312,1714, # 2576
+1257,3078,4328,1518,1098, 865,1310,1019,1885,1512,1734, 469,2444, 148, 773, 436, # 2592
+1815,1868,1128,1055,4329,1245,2756,3445,2154,1934,1039,4643, 579,1238, 932,2320, # 2608
+ 353, 205, 801, 115,2428, 944,2321,1881, 399,2565,1211, 678, 766,3944, 335,2101, # 2624
+1459,1781,1402,3945,2737,2131,1010, 844, 981,1326,1013, 550,1816,1545,2620,1335, # 2640
+1008, 371,2881, 936,1419,1613,3529,1456,1395,2273,1834,2604,1317,2738,2503, 416, # 2656
+1643,4330, 806,1126, 229, 591,3946,1314,1981,1576,1837,1666, 347,1790, 977,3313, # 2672
+ 764,2861,1853, 688,2429,1920,1462,  77, 595, 415,2002,3034, 798,1192,4115,6144, # 2688
+2978,4331,3035,2695,2582,2072,2566, 430,2430,1727, 842,1396,3947,3702, 613, 377, # 2704
+ 278, 236,1417,3388,3314,3174, 757,1869, 107,3530,6145,1194, 623,2262, 207,1253, # 2720
+2167,3446,3948, 492,1117,1935, 536,1838,2757,1246,4332, 696,2095,2406,1393,1572, # 2736
+3175,1782, 583, 190, 253,1390,2230, 830,3126,3389, 934,3245,1703,1749,2979,1870, # 2752
+2545,1656,2204, 869,2346,4116,3176,1817, 496,1764,4644, 942,1504, 404,1903,1122, # 2768
+1580,3606,2945,1022, 515, 372,1735, 955,2431,3036,6146,2797,1110,2302,2798, 617, # 2784
+6147, 441, 762,1771,3447,3607,3608,1904, 840,3037,  86, 939,1385, 572,1370,2445, # 2800
+1336, 114,3703, 898, 294, 203,3315, 703,1583,2274, 429, 961,4333,1854,1951,3390, # 2816
+2373,3704,4334,1318,1381, 966,1911,2322,1006,1155, 309, 989, 458,2718,1795,1372, # 2832
+1203, 252,1689,1363,3177, 517,1936, 168,1490, 562, 193,3823,1042,4117,1835, 551, # 2848
+ 470,4645, 395, 489,3448,1871,1465,2583,2641, 417,1493, 279,1295, 511,1236,1119, # 2864
+  72,1231,1982,1812,3004, 871,1564, 984,3449,1667,2696,2096,4646,2347,2833,1673, # 2880
+3609, 695,3246,2668, 807,1183,4647, 890, 388,2333,1801,1457,2911,1765,1477,1031, # 2896
+3316,3317,1278,3391,2799,2292,2526, 163,3450,4335,2669,1404,1802,6148,2323,2407, # 2912
+1584,1728,1494,1824,1269, 298, 909,3318,1034,1632, 375, 776,1683,2061, 291, 210, # 2928
+1123, 809,1249,1002,2642,3038, 206,1011,2132, 144, 975, 882,1565, 342, 667, 754, # 2944
+1442,2143,1299,2303,2062, 447, 626,2205,1221,2739,2912,1144,1214,2206,2584, 760, # 2960
+1715, 614, 950,1281,2670,2621, 810, 577,1287,2546,4648, 242,2168, 250,2643, 691, # 2976
+ 123,2644, 647, 313,1029, 689,1357,2946,1650, 216, 771,1339,1306, 808,2063, 549, # 2992
+ 913,1371,2913,2914,6149,1466,1092,1174,1196,1311,2605,2396,1783,1796,3079, 406, # 3008
+2671,2117,3949,4649, 487,1825,2220,6150,2915, 448,2348,1073,6151,2397,1707, 130, # 3024
+ 900,1598, 329, 176,1959,2527,1620,6152,2275,4336,3319,1983,2191,3705,3610,2155, # 3040
+3706,1912,1513,1614,6153,1988, 646, 392,2304,1589,3320,3039,1826,1239,1352,1340, # 3056
+2916, 505,2567,1709,1437,2408,2547, 906,6154,2672, 384,1458,1594,1100,1329, 710, # 3072
+ 423,3531,2064,2231,2622,1989,2673,1087,1882, 333, 841,3005,1296,2882,2379, 580, # 3088
+1937,1827,1293,2585, 601, 574, 249,1772,4118,2079,1120, 645, 901,1176,1690, 795, # 3104
+2207, 478,1434, 516,1190,1530, 761,2080, 930,1264, 355, 435,1552, 644,1791, 987, # 3120
+ 220,1364,1163,1121,1538, 306,2169,1327,1222, 546,2645, 218, 241, 610,1704,3321, # 3136
+1984,1839,1966,2528, 451,6155,2586,3707,2568, 907,3178, 254,2947, 186,1845,4650, # 3152
+ 745, 432,1757, 428,1633, 888,2246,2221,2489,3611,2118,1258,1265, 956,3127,1784, # 3168
+4337,2490, 319, 510, 119, 457,3612, 274,2035,2007,4651,1409,3128, 970,2758, 590, # 3184
+2800, 661,2247,4652,2008,3950,1420,1549,3080,3322,3951,1651,1375,2111, 485,2491, # 3200
+1429,1156,6156,2548,2183,1495, 831,1840,2529,2446, 501,1657, 307,1894,3247,1341, # 3216
+ 666, 899,2156,1539,2549,1559, 886, 349,2208,3081,2305,1736,3824,2170,2759,1014, # 3232
+1913,1386, 542,1397,2948, 490, 368, 716, 362, 159, 282,2569,1129,1658,1288,1750, # 3248
+2674, 276, 649,2016, 751,1496, 658,1818,1284,1862,2209,2087,2512,3451, 622,2834, # 3264
+ 376, 117,1060,2053,1208,1721,1101,1443, 247,1250,3179,1792,3952,2760,2398,3953, # 3280
+6157,2144,3708, 446,2432,1151,2570,3452,2447,2761,2835,1210,2448,3082, 424,2222, # 3296
+1251,2449,2119,2836, 504,1581,4338, 602, 817, 857,3825,2349,2306, 357,3826,1470, # 3312
+1883,2883, 255, 958, 929,2917,3248, 302,4653,1050,1271,1751,2307,1952,1430,2697, # 3328
+2719,2359, 354,3180, 777, 158,2036,4339,1659,4340,4654,2308,2949,2248,1146,2232, # 3344
+3532,2720,1696,2623,3827,6158,3129,1550,2698,1485,1297,1428, 637, 931,2721,2145, # 3360
+ 914,2550,2587,  81,2450, 612, 827,2646,1242,4655,1118,2884, 472,1855,3181,3533, # 3376
+3534, 569,1353,2699,1244,1758,2588,4119,2009,2762,2171,3709,1312,1531,6159,1152, # 3392
+1938, 134,1830, 471,3710,2276,1112,1535,3323,3453,3535, 982,1337,2950, 488, 826, # 3408
+ 674,1058,1628,4120,2017, 522,2399, 211, 568,1367,3454, 350, 293,1872,1139,3249, # 3424
+1399,1946,3006,1300,2360,3324, 588, 736,6160,2606, 744, 669,3536,3828,6161,1358, # 3440
+ 199, 723, 848, 933, 851,1939,1505,1514,1338,1618,1831,4656,1634,3613, 443,2740, # 3456
+3829, 717,1947, 491,1914,6162,2551,1542,4121,1025,6163,1099,1223, 198,3040,2722, # 3472
+ 370, 410,1905,2589, 998,1248,3182,2380, 519,1449,4122,1710, 947, 928,1153,4341, # 3488
+2277, 344,2624,1511, 615, 105, 161,1212,1076,1960,3130,2054,1926,1175,1906,2473, # 3504
+ 414,1873,2801,6164,2309, 315,1319,3325, 318,2018,2146,2157, 963, 631, 223,4342, # 3520
+4343,2675, 479,3711,1197,2625,3712,2676,2361,6165,4344,4123,6166,2451,3183,1886, # 3536
+2184,1674,1330,1711,1635,1506, 799, 219,3250,3083,3954,1677,3713,3326,2081,3614, # 3552
+1652,2073,4657,1147,3041,1752, 643,1961, 147,1974,3955,6167,1716,2037, 918,3007, # 3568
+1994, 120,1537, 118, 609,3184,4345, 740,3455,1219, 332,1615,3830,6168,1621,2980, # 3584
+1582, 783, 212, 553,2350,3714,1349,2433,2082,4124, 889,6169,2310,1275,1410, 973, # 3600
+ 166,1320,3456,1797,1215,3185,2885,1846,2590,2763,4658, 629, 822,3008, 763, 940, # 3616
+1990,2862, 439,2409,1566,1240,1622, 926,1282,1907,2764, 654,2210,1607, 327,1130, # 3632
+3956,1678,1623,6170,2434,2192, 686, 608,3831,3715, 903,3957,3042,6171,2741,1522, # 3648
+1915,1105,1555,2552,1359, 323,3251,4346,3457, 738,1354,2553,2311,2334,1828,2003, # 3664
+3832,1753,2351,1227,6172,1887,4125,1478,6173,2410,1874,1712,1847, 520,1204,2607, # 3680
+ 264,4659, 836,2677,2102, 600,4660,3833,2278,3084,6174,4347,3615,1342, 640, 532, # 3696
+ 543,2608,1888,2400,2591,1009,4348,1497, 341,1737,3616,2723,1394, 529,3252,1321, # 3712
+ 983,4661,1515,2120, 971,2592, 924, 287,1662,3186,4349,2700,4350,1519, 908,1948, # 3728
+2452, 156, 796,1629,1486,2223,2055, 694,4126,1259,1036,3392,1213,2249,2742,1889, # 3744
+1230,3958,1015, 910, 408, 559,3617,4662, 746, 725, 935,4663,3959,3009,1289, 563, # 3760
+ 867,4664,3960,1567,2981,2038,2626, 988,2263,2381,4351, 143,2374, 704,1895,6175, # 3776
+1188,3716,2088, 673,3085,2362,4352, 484,1608,1921,2765,2918, 215, 904,3618,3537, # 3792
+ 894, 509, 976,3043,2701,3961,4353,2837,2982, 498,6176,6177,1102,3538,1332,3393, # 3808
+1487,1636,1637, 233, 245,3962, 383, 650, 995,3044, 460,1520,1206,2352, 749,3327, # 3824
+ 530, 700, 389,1438,1560,1773,3963,2264, 719,2951,2724,3834, 870,1832,1644,1000, # 3840
+ 839,2474,3717, 197,1630,3394, 365,2886,3964,1285,2133, 734, 922, 818,1106, 732, # 3856
+ 480,2083,1774,3458, 923,2279,1350, 221,3086,  85,2233,2234,3835,1585,3010,2147, # 3872
+1387,1705,2382,1619,2475, 133, 239,2802,1991,1016,2084,2383, 411,2838,1113, 651, # 3888
+1985,1160,3328, 990,1863,3087,1048,1276,2647, 265,2627,1599,3253,2056, 150, 638, # 3904
+2019, 656, 853, 326,1479, 680,1439,4354,1001,1759, 413,3459,3395,2492,1431, 459, # 3920
+4355,1125,3329,2265,1953,1450,2065,2863, 849, 351,2678,3131,3254,3255,1104,1577, # 3936
+ 227,1351,1645,2453,2193,1421,2887, 812,2121, 634,  95,2435, 201,2312,4665,1646, # 3952
+1671,2743,1601,2554,2702,2648,2280,1315,1366,2089,3132,1573,3718,3965,1729,1189, # 3968
+ 328,2679,1077,1940,1136, 558,1283, 964,1195, 621,2074,1199,1743,3460,3619,1896, # 3984
+1916,1890,3836,2952,1154,2112,1064, 862, 378,3011,2066,2113,2803,1568,2839,6178, # 4000
+3088,2919,1941,1660,2004,1992,2194, 142, 707,1590,1708,1624,1922,1023,1836,1233, # 4016
+1004,2313, 789, 741,3620,6179,1609,2411,1200,4127,3719,3720,4666,2057,3721, 593, # 4032
+2840, 367,2920,1878,6180,3461,1521, 628,1168, 692,2211,2649, 300, 720,2067,2571, # 4048
+2953,3396, 959,2504,3966,3539,3462,1977, 701,6181, 954,1043, 800, 681, 183,3722, # 4064
+1803,1730,3540,4128,2103, 815,2314, 174, 467, 230,2454,1093,2134, 755,3541,3397, # 4080
+1141,1162,6182,1738,2039, 270,3256,2513,1005,1647,2185,3837, 858,1679,1897,1719, # 4096
+2954,2324,1806, 402, 670, 167,4129,1498,2158,2104, 750,6183, 915, 189,1680,1551, # 4112
+ 455,4356,1501,2455, 405,1095,2955, 338,1586,1266,1819, 570, 641,1324, 237,1556, # 4128
+2650,1388,3723,6184,1368,2384,1343,1978,3089,2436, 879,3724, 792,1191, 758,3012, # 4144
+1411,2135,1322,4357, 240,4667,1848,3725,1574,6185, 420,3045,1546,1391, 714,4358, # 4160
+1967, 941,1864, 863, 664, 426, 560,1731,2680,1785,2864,1949,2363, 403,3330,1415, # 4176
+1279,2136,1697,2335, 204, 721,2097,3838,  90,6186,2085,2505, 191,3967, 124,2148, # 4192
+1376,1798,1178,1107,1898,1405, 860,4359,1243,1272,2375,2983,1558,2456,1638, 113, # 4208
+3621, 578,1923,2609, 880, 386,4130, 784,2186,2266,1422,2956,2172,1722, 497, 263, # 4224
+2514,1267,2412,2610, 177,2703,3542, 774,1927,1344, 616,1432,1595,1018, 172,4360, # 4240
+2325, 911,4361, 438,1468,3622, 794,3968,2024,2173,1681,1829,2957, 945, 895,3090, # 4256
+ 575,2212,2476, 475,2401,2681, 785,2744,1745,2293,2555,1975,3133,2865, 394,4668, # 4272
+3839, 635,4131, 639, 202,1507,2195,2766,1345,1435,2572,3726,1908,1184,1181,2457, # 4288
+3727,3134,4362, 843,2611, 437, 916,4669, 234, 769,1884,3046,3047,3623, 833,6187, # 4304
+1639,2250,2402,1355,1185,2010,2047, 999, 525,1732,1290,1488,2612, 948,1578,3728, # 4320
+2413,2477,1216,2725,2159, 334,3840,1328,3624,2921,1525,4132, 564,1056, 891,4363, # 4336
+1444,1698,2385,2251,3729,1365,2281,2235,1717,6188, 864,3841,2515, 444, 527,2767, # 4352
+2922,3625, 544, 461,6189, 566, 209,2437,3398,2098,1065,2068,3331,3626,3257,2137, # 4368  #last 512
+#Everything below is of no interest for detection purpose
+2138,2122,3730,2888,1995,1820,1044,6190,6191,6192,6193,6194,6195,6196,6197,6198, # 4384
+6199,6200,6201,6202,6203,6204,6205,4670,6206,6207,6208,6209,6210,6211,6212,6213, # 4400
+6214,6215,6216,6217,6218,6219,6220,6221,6222,6223,6224,6225,6226,6227,6228,6229, # 4416
+6230,6231,6232,6233,6234,6235,6236,6237,3187,6238,6239,3969,6240,6241,6242,6243, # 4432
+6244,4671,6245,6246,4672,6247,6248,4133,6249,6250,4364,6251,2923,2556,2613,4673, # 4448
+4365,3970,6252,6253,6254,6255,4674,6256,6257,6258,2768,2353,4366,4675,4676,3188, # 4464
+4367,3463,6259,4134,4677,4678,6260,2267,6261,3842,3332,4368,3543,6262,6263,6264, # 4480
+3013,1954,1928,4135,4679,6265,6266,2478,3091,6267,4680,4369,6268,6269,1699,6270, # 4496
+3544,4136,4681,6271,4137,6272,4370,2804,6273,6274,2593,3971,3972,4682,6275,2236, # 4512
+4683,6276,6277,4684,6278,6279,4138,3973,4685,6280,6281,3258,6282,6283,6284,6285, # 4528
+3974,4686,2841,3975,6286,6287,3545,6288,6289,4139,4687,4140,6290,4141,6291,4142, # 4544
+6292,6293,3333,6294,6295,6296,4371,6297,3399,6298,6299,4372,3976,6300,6301,6302, # 4560
+4373,6303,6304,3843,3731,6305,4688,4374,6306,6307,3259,2294,6308,3732,2530,4143, # 4576
+6309,4689,6310,6311,6312,3048,6313,6314,4690,3733,2237,6315,6316,2282,3334,6317, # 4592
+6318,3844,6319,6320,4691,6321,3400,4692,6322,4693,6323,3049,6324,4375,6325,3977, # 4608
+6326,6327,6328,3546,6329,4694,3335,6330,4695,4696,6331,6332,6333,6334,4376,3978, # 4624
+6335,4697,3979,4144,6336,3980,4698,6337,6338,6339,6340,6341,4699,4700,4701,6342, # 4640
+6343,4702,6344,6345,4703,6346,6347,4704,6348,4705,4706,3135,6349,4707,6350,4708, # 4656
+6351,4377,6352,4709,3734,4145,6353,2506,4710,3189,6354,3050,4711,3981,6355,3547, # 4672
+3014,4146,4378,3735,2651,3845,3260,3136,2224,1986,6356,3401,6357,4712,2594,3627, # 4688
+3137,2573,3736,3982,4713,3628,4714,4715,2682,3629,4716,6358,3630,4379,3631,6359, # 4704
+6360,6361,3983,6362,6363,6364,6365,4147,3846,4717,6366,6367,3737,2842,6368,4718, # 4720
+2628,6369,3261,6370,2386,6371,6372,3738,3984,4719,3464,4720,3402,6373,2924,3336, # 4736
+4148,2866,6374,2805,3262,4380,2704,2069,2531,3138,2806,2984,6375,2769,6376,4721, # 4752
+4722,3403,6377,6378,3548,6379,6380,2705,3092,1979,4149,2629,3337,2889,6381,3338, # 4768
+4150,2557,3339,4381,6382,3190,3263,3739,6383,4151,4723,4152,2558,2574,3404,3191, # 4784
+6384,6385,4153,6386,4724,4382,6387,6388,4383,6389,6390,4154,6391,4725,3985,6392, # 4800
+3847,4155,6393,6394,6395,6396,6397,3465,6398,4384,6399,6400,6401,6402,6403,6404, # 4816
+4156,6405,6406,6407,6408,2123,6409,6410,2326,3192,4726,6411,6412,6413,6414,4385, # 4832
+4157,6415,6416,4158,6417,3093,3848,6418,3986,6419,6420,3849,6421,6422,6423,4159, # 4848
+6424,6425,4160,6426,3740,6427,6428,6429,6430,3987,6431,4727,6432,2238,6433,6434, # 4864
+4386,3988,6435,6436,3632,6437,6438,2843,6439,6440,6441,6442,3633,6443,2958,6444, # 4880
+6445,3466,6446,2364,4387,3850,6447,4388,2959,3340,6448,3851,6449,4728,6450,6451, # 4896
+3264,4729,6452,3193,6453,4389,4390,2706,3341,4730,6454,3139,6455,3194,6456,3051, # 4912
+2124,3852,1602,4391,4161,3853,1158,3854,4162,3989,4392,3990,4731,4732,4393,2040, # 4928
+4163,4394,3265,6457,2807,3467,3855,6458,6459,6460,3991,3468,4733,4734,6461,3140, # 4944
+2960,6462,4735,6463,6464,6465,6466,4736,4737,4738,4739,6467,6468,4164,2403,3856, # 4960
+6469,6470,2770,2844,6471,4740,6472,6473,6474,6475,6476,6477,6478,3195,6479,4741, # 4976
+4395,6480,2867,6481,4742,2808,6482,2493,4165,6483,6484,6485,6486,2295,4743,6487, # 4992
+6488,6489,3634,6490,6491,6492,6493,6494,6495,6496,2985,4744,6497,6498,4745,6499, # 5008
+6500,2925,3141,4166,6501,6502,4746,6503,6504,4747,6505,6506,6507,2890,6508,6509, # 5024
+6510,6511,6512,6513,6514,6515,6516,6517,6518,6519,3469,4167,6520,6521,6522,4748, # 5040
+4396,3741,4397,4749,4398,3342,2125,4750,6523,4751,4752,4753,3052,6524,2961,4168, # 5056
+6525,4754,6526,4755,4399,2926,4169,6527,3857,6528,4400,4170,6529,4171,6530,6531, # 5072
+2595,6532,6533,6534,6535,3635,6536,6537,6538,6539,6540,6541,6542,4756,6543,6544, # 5088
+6545,6546,6547,6548,4401,6549,6550,6551,6552,4402,3405,4757,4403,6553,6554,6555, # 5104
+4172,3742,6556,6557,6558,3992,3636,6559,6560,3053,2726,6561,3549,4173,3054,4404, # 5120
+6562,6563,3993,4405,3266,3550,2809,4406,6564,6565,6566,4758,4759,6567,3743,6568, # 5136
+4760,3744,4761,3470,6569,6570,6571,4407,6572,3745,4174,6573,4175,2810,4176,3196, # 5152
+4762,6574,4177,6575,6576,2494,2891,3551,6577,6578,3471,6579,4408,6580,3015,3197, # 5168
+6581,3343,2532,3994,3858,6582,3094,3406,4409,6583,2892,4178,4763,4410,3016,4411, # 5184
+6584,3995,3142,3017,2683,6585,4179,6586,6587,4764,4412,6588,6589,4413,6590,2986, # 5200
+6591,2962,3552,6592,2963,3472,6593,6594,4180,4765,6595,6596,2225,3267,4414,6597, # 5216
+3407,3637,4766,6598,6599,3198,6600,4415,6601,3859,3199,6602,3473,4767,2811,4416, # 5232
+1856,3268,3200,2575,3996,3997,3201,4417,6603,3095,2927,6604,3143,6605,2268,6606, # 5248
+3998,3860,3096,2771,6607,6608,3638,2495,4768,6609,3861,6610,3269,2745,4769,4181, # 5264
+3553,6611,2845,3270,6612,6613,6614,3862,6615,6616,4770,4771,6617,3474,3999,4418, # 5280
+4419,6618,3639,3344,6619,4772,4182,6620,2126,6621,6622,6623,4420,4773,6624,3018, # 5296
+6625,4774,3554,6626,4183,2025,3746,6627,4184,2707,6628,4421,4422,3097,1775,4185, # 5312
+3555,6629,6630,2868,6631,6632,4423,6633,6634,4424,2414,2533,2928,6635,4186,2387, # 5328
+6636,4775,6637,4187,6638,1891,4425,3202,3203,6639,6640,4776,6641,3345,6642,6643, # 5344
+3640,6644,3475,3346,3641,4000,6645,3144,6646,3098,2812,4188,3642,3204,6647,3863, # 5360
+3476,6648,3864,6649,4426,4001,6650,6651,6652,2576,6653,4189,4777,6654,6655,6656, # 5376
+2846,6657,3477,3205,4002,6658,4003,6659,3347,2252,6660,6661,6662,4778,6663,6664, # 5392
+6665,6666,6667,6668,6669,4779,4780,2048,6670,3478,3099,6671,3556,3747,4004,6672, # 5408
+6673,6674,3145,4005,3748,6675,6676,6677,6678,6679,3408,6680,6681,6682,6683,3206, # 5424
+3207,6684,6685,4781,4427,6686,4782,4783,4784,6687,6688,6689,4190,6690,6691,3479, # 5440
+6692,2746,6693,4428,6694,6695,6696,6697,6698,6699,4785,6700,6701,3208,2727,6702, # 5456
+3146,6703,6704,3409,2196,6705,4429,6706,6707,6708,2534,1996,6709,6710,6711,2747, # 5472
+6712,6713,6714,4786,3643,6715,4430,4431,6716,3557,6717,4432,4433,6718,6719,6720, # 5488
+6721,3749,6722,4006,4787,6723,6724,3644,4788,4434,6725,6726,4789,2772,6727,6728, # 5504
+6729,6730,6731,2708,3865,2813,4435,6732,6733,4790,4791,3480,6734,6735,6736,6737, # 5520
+4436,3348,6738,3410,4007,6739,6740,4008,6741,6742,4792,3411,4191,6743,6744,6745, # 5536
+6746,6747,3866,6748,3750,6749,6750,6751,6752,6753,6754,6755,3867,6756,4009,6757, # 5552
+4793,4794,6758,2814,2987,6759,6760,6761,4437,6762,6763,6764,6765,3645,6766,6767, # 5568
+3481,4192,6768,3751,6769,6770,2174,6771,3868,3752,6772,6773,6774,4193,4795,4438, # 5584
+3558,4796,4439,6775,4797,6776,6777,4798,6778,4799,3559,4800,6779,6780,6781,3482, # 5600
+6782,2893,6783,6784,4194,4801,4010,6785,6786,4440,6787,4011,6788,6789,6790,6791, # 5616
+6792,6793,4802,6794,6795,6796,4012,6797,6798,6799,6800,3349,4803,3483,6801,4804, # 5632
+4195,6802,4013,6803,6804,4196,6805,4014,4015,6806,2847,3271,2848,6807,3484,6808, # 5648
+6809,6810,4441,6811,4442,4197,4443,3272,4805,6812,3412,4016,1579,6813,6814,4017, # 5664
+6815,3869,6816,2964,6817,4806,6818,6819,4018,3646,6820,6821,4807,4019,4020,6822, # 5680
+6823,3560,6824,6825,4021,4444,6826,4198,6827,6828,4445,6829,6830,4199,4808,6831, # 5696
+6832,6833,3870,3019,2458,6834,3753,3413,3350,6835,4809,3871,4810,3561,4446,6836, # 5712
+6837,4447,4811,4812,6838,2459,4448,6839,4449,6840,6841,4022,3872,6842,4813,4814, # 5728
+6843,6844,4815,4200,4201,4202,6845,4023,6846,6847,4450,3562,3873,6848,6849,4816, # 5744
+4817,6850,4451,4818,2139,6851,3563,6852,6853,3351,6854,6855,3352,4024,2709,3414, # 5760
+4203,4452,6856,4204,6857,6858,3874,3875,6859,6860,4819,6861,6862,6863,6864,4453, # 5776
+3647,6865,6866,4820,6867,6868,6869,6870,4454,6871,2869,6872,6873,4821,6874,3754, # 5792
+6875,4822,4205,6876,6877,6878,3648,4206,4455,6879,4823,6880,4824,3876,6881,3055, # 5808
+4207,6882,3415,6883,6884,6885,4208,4209,6886,4210,3353,6887,3354,3564,3209,3485, # 5824
+2652,6888,2728,6889,3210,3755,6890,4025,4456,6891,4825,6892,6893,6894,6895,4211, # 5840
+6896,6897,6898,4826,6899,6900,4212,6901,4827,6902,2773,3565,6903,4828,6904,6905, # 5856
+6906,6907,3649,3650,6908,2849,3566,6909,3567,3100,6910,6911,6912,6913,6914,6915, # 5872
+4026,6916,3355,4829,3056,4457,3756,6917,3651,6918,4213,3652,2870,6919,4458,6920, # 5888
+2438,6921,6922,3757,2774,4830,6923,3356,4831,4832,6924,4833,4459,3653,2507,6925, # 5904
+4834,2535,6926,6927,3273,4027,3147,6928,3568,6929,6930,6931,4460,6932,3877,4461, # 5920
+2729,3654,6933,6934,6935,6936,2175,4835,2630,4214,4028,4462,4836,4215,6937,3148, # 5936
+4216,4463,4837,4838,4217,6938,6939,2850,4839,6940,4464,6941,6942,6943,4840,6944, # 5952
+4218,3274,4465,6945,6946,2710,6947,4841,4466,6948,6949,2894,6950,6951,4842,6952, # 5968
+4219,3057,2871,6953,6954,6955,6956,4467,6957,2711,6958,6959,6960,3275,3101,4843, # 5984
+6961,3357,3569,6962,4844,6963,6964,4468,4845,3570,6965,3102,4846,3758,6966,4847, # 6000
+3878,4848,4849,4029,6967,2929,3879,4850,4851,6968,6969,1733,6970,4220,6971,6972, # 6016
+6973,6974,6975,6976,4852,6977,6978,6979,6980,6981,6982,3759,6983,6984,6985,3486, # 6032
+3487,6986,3488,3416,6987,6988,6989,6990,6991,6992,6993,6994,6995,6996,6997,4853, # 6048
+6998,6999,4030,7000,7001,3211,7002,7003,4221,7004,7005,3571,4031,7006,3572,7007, # 6064
+2614,4854,2577,7008,7009,2965,3655,3656,4855,2775,3489,3880,4222,4856,3881,4032, # 6080
+3882,3657,2730,3490,4857,7010,3149,7011,4469,4858,2496,3491,4859,2283,7012,7013, # 6096
+7014,2365,4860,4470,7015,7016,3760,7017,7018,4223,1917,7019,7020,7021,4471,7022, # 6112
+2776,4472,7023,7024,7025,7026,4033,7027,3573,4224,4861,4034,4862,7028,7029,1929, # 6128
+3883,4035,7030,4473,3058,7031,2536,3761,3884,7032,4036,7033,2966,2895,1968,4474, # 6144
+3276,4225,3417,3492,4226,2105,7034,7035,1754,2596,3762,4227,4863,4475,3763,4864, # 6160
+3764,2615,2777,3103,3765,3658,3418,4865,2296,3766,2815,7036,7037,7038,3574,2872, # 6176
+3277,4476,7039,4037,4477,7040,7041,4038,7042,7043,7044,7045,7046,7047,2537,7048, # 6192
+7049,7050,7051,7052,7053,7054,4478,7055,7056,3767,3659,4228,3575,7057,7058,4229, # 6208
+7059,7060,7061,3660,7062,3212,7063,3885,4039,2460,7064,7065,7066,7067,7068,7069, # 6224
+7070,7071,7072,7073,7074,4866,3768,4867,7075,7076,7077,7078,4868,3358,3278,2653, # 6240
+7079,7080,4479,3886,7081,7082,4869,7083,7084,7085,7086,7087,7088,2538,7089,7090, # 6256
+7091,4040,3150,3769,4870,4041,2896,3359,4230,2930,7092,3279,7093,2967,4480,3213, # 6272
+4481,3661,7094,7095,7096,7097,7098,7099,7100,7101,7102,2461,3770,7103,7104,4231, # 6288
+3151,7105,7106,7107,4042,3662,7108,7109,4871,3663,4872,4043,3059,7110,7111,7112, # 6304
+3493,2988,7113,4873,7114,7115,7116,3771,4874,7117,7118,4232,4875,7119,3576,2336, # 6320
+4876,7120,4233,3419,4044,4877,4878,4482,4483,4879,4484,4234,7121,3772,4880,1045, # 6336
+3280,3664,4881,4882,7122,7123,7124,7125,4883,7126,2778,7127,4485,4486,7128,4884, # 6352
+3214,3887,7129,7130,3215,7131,4885,4045,7132,7133,4046,7134,7135,7136,7137,7138, # 6368
+7139,7140,7141,7142,7143,4235,7144,4886,7145,7146,7147,4887,7148,7149,7150,4487, # 6384
+4047,4488,7151,7152,4888,4048,2989,3888,7153,3665,7154,4049,7155,7156,7157,7158, # 6400
+7159,7160,2931,4889,4890,4489,7161,2631,3889,4236,2779,7162,7163,4891,7164,3060, # 6416
+7165,1672,4892,7166,4893,4237,3281,4894,7167,7168,3666,7169,3494,7170,7171,4050, # 6432
+7172,7173,3104,3360,3420,4490,4051,2684,4052,7174,4053,7175,7176,7177,2253,4054, # 6448
+7178,7179,4895,7180,3152,3890,3153,4491,3216,7181,7182,7183,2968,4238,4492,4055, # 6464
+7184,2990,7185,2479,7186,7187,4493,7188,7189,7190,7191,7192,4896,7193,4897,2969, # 6480
+4494,4898,7194,3495,7195,7196,4899,4495,7197,3105,2731,7198,4900,7199,7200,7201, # 6496
+4056,7202,3361,7203,7204,4496,4901,4902,7205,4497,7206,7207,2315,4903,7208,4904, # 6512
+7209,4905,2851,7210,7211,3577,7212,3578,4906,7213,4057,3667,4907,7214,4058,2354, # 6528
+3891,2376,3217,3773,7215,7216,7217,7218,7219,4498,7220,4908,3282,2685,7221,3496, # 6544
+4909,2632,3154,4910,7222,2337,7223,4911,7224,7225,7226,4912,4913,3283,4239,4499, # 6560
+7227,2816,7228,7229,7230,7231,7232,7233,7234,4914,4500,4501,7235,7236,7237,2686, # 6576
+7238,4915,7239,2897,4502,7240,4503,7241,2516,7242,4504,3362,3218,7243,7244,7245, # 6592
+4916,7246,7247,4505,3363,7248,7249,7250,7251,3774,4506,7252,7253,4917,7254,7255, # 6608
+3284,2991,4918,4919,3219,3892,4920,3106,3497,4921,7256,7257,7258,4922,7259,4923, # 6624
+3364,4507,4508,4059,7260,4240,3498,7261,7262,4924,7263,2992,3893,4060,3220,7264, # 6640
+7265,7266,7267,7268,7269,4509,3775,7270,2817,7271,4061,4925,4510,3776,7272,4241, # 6656
+4511,3285,7273,7274,3499,7275,7276,7277,4062,4512,4926,7278,3107,3894,7279,7280, # 6672
+4927,7281,4513,7282,7283,3668,7284,7285,4242,4514,4243,7286,2058,4515,4928,4929, # 6688
+4516,7287,3286,4244,7288,4517,7289,7290,7291,3669,7292,7293,4930,4931,4932,2355, # 6704
+4933,7294,2633,4518,7295,4245,7296,7297,4519,7298,7299,4520,4521,4934,7300,4246, # 6720
+4522,7301,7302,7303,3579,7304,4247,4935,7305,4936,7306,7307,7308,7309,3777,7310, # 6736
+4523,7311,7312,7313,4248,3580,7314,4524,3778,4249,7315,3581,7316,3287,7317,3221, # 6752
+7318,4937,7319,7320,7321,7322,7323,7324,4938,4939,7325,4525,7326,7327,7328,4063, # 6768
+7329,7330,4940,7331,7332,4941,7333,4526,7334,3500,2780,1741,4942,2026,1742,7335, # 6784
+7336,3582,4527,2388,7337,7338,7339,4528,7340,4250,4943,7341,7342,7343,4944,7344, # 6800
+7345,7346,3020,7347,4945,7348,7349,7350,7351,3895,7352,3896,4064,3897,7353,7354, # 6816
+7355,4251,7356,7357,3898,7358,3779,7359,3780,3288,7360,7361,4529,7362,4946,4530, # 6832
+2027,7363,3899,4531,4947,3222,3583,7364,4948,7365,7366,7367,7368,4949,3501,4950, # 6848
+3781,4951,4532,7369,2517,4952,4252,4953,3155,7370,4954,4955,4253,2518,4533,7371, # 6864
+7372,2712,4254,7373,7374,7375,3670,4956,3671,7376,2389,3502,4065,7377,2338,7378, # 6880
+7379,7380,7381,3061,7382,4957,7383,7384,7385,7386,4958,4534,7387,7388,2993,7389, # 6896
+3062,7390,4959,7391,7392,7393,4960,3108,4961,7394,4535,7395,4962,3421,4536,7396, # 6912
+4963,7397,4964,1857,7398,4965,7399,7400,2176,3584,4966,7401,7402,3422,4537,3900, # 6928
+3585,7403,3782,7404,2852,7405,7406,7407,4538,3783,2654,3423,4967,4539,7408,3784, # 6944
+3586,2853,4540,4541,7409,3901,7410,3902,7411,7412,3785,3109,2327,3903,7413,7414, # 6960
+2970,4066,2932,7415,7416,7417,3904,3672,3424,7418,4542,4543,4544,7419,4968,7420, # 6976
+7421,4255,7422,7423,7424,7425,7426,4067,7427,3673,3365,4545,7428,3110,2559,3674, # 6992
+7429,7430,3156,7431,7432,3503,7433,3425,4546,7434,3063,2873,7435,3223,4969,4547, # 7008
+4548,2898,4256,4068,7436,4069,3587,3786,2933,3787,4257,4970,4971,3788,7437,4972, # 7024
+3064,7438,4549,7439,7440,7441,7442,7443,4973,3905,7444,2874,7445,7446,7447,7448, # 7040
+3021,7449,4550,3906,3588,4974,7450,7451,3789,3675,7452,2578,7453,4070,7454,7455, # 7056
+7456,4258,3676,7457,4975,7458,4976,4259,3790,3504,2634,4977,3677,4551,4260,7459, # 7072
+7460,7461,7462,3907,4261,4978,7463,7464,7465,7466,4979,4980,7467,7468,2213,4262, # 7088
+7469,7470,7471,3678,4981,7472,2439,7473,4263,3224,3289,7474,3908,2415,4982,7475, # 7104
+4264,7476,4983,2655,7477,7478,2732,4552,2854,2875,7479,7480,4265,7481,4553,4984, # 7120
+7482,7483,4266,7484,3679,3366,3680,2818,2781,2782,3367,3589,4554,3065,7485,4071, # 7136
+2899,7486,7487,3157,2462,4072,4555,4073,4985,4986,3111,4267,2687,3368,4556,4074, # 7152
+3791,4268,7488,3909,2783,7489,2656,1962,3158,4557,4987,1963,3159,3160,7490,3112, # 7168
+4988,4989,3022,4990,4991,3792,2855,7491,7492,2971,4558,7493,7494,4992,7495,7496, # 7184
+7497,7498,4993,7499,3426,4559,4994,7500,3681,4560,4269,4270,3910,7501,4075,4995, # 7200
+4271,7502,7503,4076,7504,4996,7505,3225,4997,4272,4077,2819,3023,7506,7507,2733, # 7216
+4561,7508,4562,7509,3369,3793,7510,3590,2508,7511,7512,4273,3113,2994,2616,7513, # 7232
+7514,7515,7516,7517,7518,2820,3911,4078,2748,7519,7520,4563,4998,7521,7522,7523, # 7248
+7524,4999,4274,7525,4564,3682,2239,4079,4565,7526,7527,7528,7529,5000,7530,7531, # 7264
+5001,4275,3794,7532,7533,7534,3066,5002,4566,3161,7535,7536,4080,7537,3162,7538, # 7280
+7539,4567,7540,7541,7542,7543,7544,7545,5003,7546,4568,7547,7548,7549,7550,7551, # 7296
+7552,7553,7554,7555,7556,5004,7557,7558,7559,5005,7560,3795,7561,4569,7562,7563, # 7312
+7564,2821,3796,4276,4277,4081,7565,2876,7566,5006,7567,7568,2900,7569,3797,3912, # 7328
+7570,7571,7572,4278,7573,7574,7575,5007,7576,7577,5008,7578,7579,4279,2934,7580, # 7344
+7581,5009,7582,4570,7583,4280,7584,7585,7586,4571,4572,3913,7587,4573,3505,7588, # 7360
+5010,7589,7590,7591,7592,3798,4574,7593,7594,5011,7595,4281,7596,7597,7598,4282, # 7376
+5012,7599,7600,5013,3163,7601,5014,7602,3914,7603,7604,2734,4575,4576,4577,7605, # 7392
+7606,7607,7608,7609,3506,5015,4578,7610,4082,7611,2822,2901,2579,3683,3024,4579, # 7408
+3507,7612,4580,7613,3226,3799,5016,7614,7615,7616,7617,7618,7619,7620,2995,3290, # 7424
+7621,4083,7622,5017,7623,7624,7625,7626,7627,4581,3915,7628,3291,7629,5018,7630, # 7440
+7631,7632,7633,4084,7634,7635,3427,3800,7636,7637,4582,7638,5019,4583,5020,7639, # 7456
+3916,7640,3801,5021,4584,4283,7641,7642,3428,3591,2269,7643,2617,7644,4585,3592, # 7472
+7645,4586,2902,7646,7647,3227,5022,7648,4587,7649,4284,7650,7651,7652,4588,2284, # 7488
+7653,5023,7654,7655,7656,4589,5024,3802,7657,7658,5025,3508,4590,7659,7660,7661, # 7504
+1969,5026,7662,7663,3684,1821,2688,7664,2028,2509,4285,7665,2823,1841,7666,2689, # 7520
+3114,7667,3917,4085,2160,5027,5028,2972,7668,5029,7669,7670,7671,3593,4086,7672, # 7536
+4591,4087,5030,3803,7673,7674,7675,7676,7677,7678,7679,4286,2366,4592,4593,3067, # 7552
+2328,7680,7681,4594,3594,3918,2029,4287,7682,5031,3919,3370,4288,4595,2856,7683, # 7568
+3509,7684,7685,5032,5033,7686,7687,3804,2784,7688,7689,7690,7691,3371,7692,7693, # 7584
+2877,5034,7694,7695,3920,4289,4088,7696,7697,7698,5035,7699,5036,4290,5037,5038, # 7600
+5039,7700,7701,7702,5040,5041,3228,7703,1760,7704,5042,3229,4596,2106,4089,7705, # 7616
+4597,2824,5043,2107,3372,7706,4291,4090,5044,7707,4091,7708,5045,3025,3805,4598, # 7632
+4292,4293,4294,3373,7709,4599,7710,5046,7711,7712,5047,5048,3806,7713,7714,7715, # 7648
+5049,7716,7717,7718,7719,4600,5050,7720,7721,7722,5051,7723,4295,3429,7724,7725, # 7664
+7726,7727,3921,7728,3292,5052,4092,7729,7730,7731,7732,7733,7734,7735,5053,5054, # 7680
+7736,7737,7738,7739,3922,3685,7740,7741,7742,7743,2635,5055,7744,5056,4601,7745, # 7696
+7746,2560,7747,7748,7749,7750,3923,7751,7752,7753,7754,7755,4296,2903,7756,7757, # 7712
+7758,7759,7760,3924,7761,5057,4297,7762,7763,5058,4298,7764,4093,7765,7766,5059, # 7728
+3925,7767,7768,7769,7770,7771,7772,7773,7774,7775,7776,3595,7777,4299,5060,4094, # 7744
+7778,3293,5061,7779,7780,4300,7781,7782,4602,7783,3596,7784,7785,3430,2367,7786, # 7760
+3164,5062,5063,4301,7787,7788,4095,5064,5065,7789,3374,3115,7790,7791,7792,7793, # 7776
+7794,7795,7796,3597,4603,7797,7798,3686,3116,3807,5066,7799,7800,5067,7801,7802, # 7792
+4604,4302,5068,4303,4096,7803,7804,3294,7805,7806,5069,4605,2690,7807,3026,7808, # 7808
+7809,7810,7811,7812,7813,7814,7815,7816,7817,7818,7819,7820,7821,7822,7823,7824, # 7824
+7825,7826,7827,7828,7829,7830,7831,7832,7833,7834,7835,7836,7837,7838,7839,7840, # 7840
+7841,7842,7843,7844,7845,7846,7847,7848,7849,7850,7851,7852,7853,7854,7855,7856, # 7856
+7857,7858,7859,7860,7861,7862,7863,7864,7865,7866,7867,7868,7869,7870,7871,7872, # 7872
+7873,7874,7875,7876,7877,7878,7879,7880,7881,7882,7883,7884,7885,7886,7887,7888, # 7888
+7889,7890,7891,7892,7893,7894,7895,7896,7897,7898,7899,7900,7901,7902,7903,7904, # 7904
+7905,7906,7907,7908,7909,7910,7911,7912,7913,7914,7915,7916,7917,7918,7919,7920, # 7920
+7921,7922,7923,7924,3926,7925,7926,7927,7928,7929,7930,7931,7932,7933,7934,7935, # 7936
+7936,7937,7938,7939,7940,7941,7942,7943,7944,7945,7946,7947,7948,7949,7950,7951, # 7952
+7952,7953,7954,7955,7956,7957,7958,7959,7960,7961,7962,7963,7964,7965,7966,7967, # 7968
+7968,7969,7970,7971,7972,7973,7974,7975,7976,7977,7978,7979,7980,7981,7982,7983, # 7984
+7984,7985,7986,7987,7988,7989,7990,7991,7992,7993,7994,7995,7996,7997,7998,7999, # 8000
+8000,8001,8002,8003,8004,8005,8006,8007,8008,8009,8010,8011,8012,8013,8014,8015, # 8016
+8016,8017,8018,8019,8020,8021,8022,8023,8024,8025,8026,8027,8028,8029,8030,8031, # 8032
+8032,8033,8034,8035,8036,8037,8038,8039,8040,8041,8042,8043,8044,8045,8046,8047, # 8048
+8048,8049,8050,8051,8052,8053,8054,8055,8056,8057,8058,8059,8060,8061,8062,8063, # 8064
+8064,8065,8066,8067,8068,8069,8070,8071,8072,8073,8074,8075,8076,8077,8078,8079, # 8080
+8080,8081,8082,8083,8084,8085,8086,8087,8088,8089,8090,8091,8092,8093,8094,8095, # 8096
+8096,8097,8098,8099,8100,8101,8102,8103,8104,8105,8106,8107,8108,8109,8110,8111, # 8112
+8112,8113,8114,8115,8116,8117,8118,8119,8120,8121,8122,8123,8124,8125,8126,8127, # 8128
+8128,8129,8130,8131,8132,8133,8134,8135,8136,8137,8138,8139,8140,8141,8142,8143, # 8144
+8144,8145,8146,8147,8148,8149,8150,8151,8152,8153,8154,8155,8156,8157,8158,8159, # 8160
+8160,8161,8162,8163,8164,8165,8166,8167,8168,8169,8170,8171,8172,8173,8174,8175, # 8176
+8176,8177,8178,8179,8180,8181,8182,8183,8184,8185,8186,8187,8188,8189,8190,8191, # 8192
+8192,8193,8194,8195,8196,8197,8198,8199,8200,8201,8202,8203,8204,8205,8206,8207, # 8208
+8208,8209,8210,8211,8212,8213,8214,8215,8216,8217,8218,8219,8220,8221,8222,8223, # 8224
+8224,8225,8226,8227,8228,8229,8230,8231,8232,8233,8234,8235,8236,8237,8238,8239, # 8240
+8240,8241,8242,8243,8244,8245,8246,8247,8248,8249,8250,8251,8252,8253,8254,8255, # 8256
+8256,8257,8258,8259,8260,8261,8262,8263,8264,8265,8266,8267,8268,8269,8270,8271) # 8272
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py
new file mode 100644
index 0000000..59aeb6a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/jpcntx.py
@@ -0,0 +1,227 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .compat import wrap_ord
+
+NUM_OF_CATEGORY = 6
+DONT_KNOW = -1
+ENOUGH_REL_THRESHOLD = 100
+MAX_REL_THRESHOLD = 1000
+MINIMUM_DATA_THRESHOLD = 4
+
+# This is hiragana 2-char sequence table, the number in each cell represents its frequency category
+jp2CharContext = (
+(0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1),
+(2,4,0,4,0,3,0,4,0,3,4,4,4,2,4,3,3,4,3,2,3,3,4,2,3,3,3,2,4,1,4,3,3,1,5,4,3,4,3,4,3,5,3,0,3,5,4,2,0,3,1,0,3,3,0,3,3,0,1,1,0,4,3,0,3,3,0,4,0,2,0,3,5,5,5,5,4,0,4,1,0,3,4),
+(0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2),
+(0,4,0,5,0,5,0,4,0,4,5,4,4,3,5,3,5,1,5,3,4,3,4,4,3,4,3,3,4,3,5,4,4,3,5,5,3,5,5,5,3,5,5,3,4,5,5,3,1,3,2,0,3,4,0,4,2,0,4,2,1,5,3,2,3,5,0,4,0,2,0,5,4,4,5,4,5,0,4,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,4,0,3,0,3,0,4,5,4,3,3,3,3,4,3,5,4,4,3,5,4,4,3,4,3,4,4,4,4,5,3,4,4,3,4,5,5,4,5,5,1,4,5,4,3,0,3,3,1,3,3,0,4,4,0,3,3,1,5,3,3,3,5,0,4,0,3,0,4,4,3,4,3,3,0,4,1,1,3,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,4,0,3,0,3,0,4,0,3,4,4,3,2,2,1,2,1,3,1,3,3,3,3,3,4,3,1,3,3,5,3,3,0,4,3,0,5,4,3,3,5,4,4,3,4,4,5,0,1,2,0,1,2,0,2,2,0,1,0,0,5,2,2,1,4,0,3,0,1,0,4,4,3,5,4,3,0,2,1,0,4,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,5,0,4,0,2,1,4,4,2,4,1,4,2,4,2,4,3,3,3,4,3,3,3,3,1,4,2,3,3,3,1,4,4,1,1,1,4,3,3,2,0,2,4,3,2,0,3,3,0,3,1,1,0,0,0,3,3,0,4,2,2,3,4,0,4,0,3,0,4,4,5,3,4,4,0,3,0,0,1,4),
+(1,4,0,4,0,4,0,4,0,3,5,4,4,3,4,3,5,4,3,3,4,3,5,4,4,4,4,3,4,2,4,3,3,1,5,4,3,2,4,5,4,5,5,4,4,5,4,4,0,3,2,2,3,3,0,4,3,1,3,2,1,4,3,3,4,5,0,3,0,2,0,4,5,5,4,5,4,0,4,0,0,5,4),
+(0,5,0,5,0,4,0,3,0,4,4,3,4,3,3,3,4,0,4,4,4,3,4,3,4,3,3,1,4,2,4,3,4,0,5,4,1,4,5,4,4,5,3,2,4,3,4,3,2,4,1,3,3,3,2,3,2,0,4,3,3,4,3,3,3,4,0,4,0,3,0,4,5,4,4,4,3,0,4,1,0,1,3),
+(0,3,1,4,0,3,0,2,0,3,4,4,3,1,4,2,3,3,4,3,4,3,4,3,4,4,3,2,3,1,5,4,4,1,4,4,3,5,4,4,3,5,5,4,3,4,4,3,1,2,3,1,2,2,0,3,2,0,3,1,0,5,3,3,3,4,3,3,3,3,4,4,4,4,5,4,2,0,3,3,2,4,3),
+(0,2,0,3,0,1,0,1,0,0,3,2,0,0,2,0,1,0,2,1,3,3,3,1,2,3,1,0,1,0,4,2,1,1,3,3,0,4,3,3,1,4,3,3,0,3,3,2,0,0,0,0,1,0,0,2,0,0,0,0,0,4,1,0,2,3,2,2,2,1,3,3,3,4,4,3,2,0,3,1,0,3,3),
+(0,4,0,4,0,3,0,3,0,4,4,4,3,3,3,3,3,3,4,3,4,2,4,3,4,3,3,2,4,3,4,5,4,1,4,5,3,5,4,5,3,5,4,0,3,5,5,3,1,3,3,2,2,3,0,3,4,1,3,3,2,4,3,3,3,4,0,4,0,3,0,4,5,4,4,5,3,0,4,1,0,3,4),
+(0,2,0,3,0,3,0,0,0,2,2,2,1,0,1,0,0,0,3,0,3,0,3,0,1,3,1,0,3,1,3,3,3,1,3,3,3,0,1,3,1,3,4,0,0,3,1,1,0,3,2,0,0,0,0,1,3,0,1,0,0,3,3,2,0,3,0,0,0,0,0,3,4,3,4,3,3,0,3,0,0,2,3),
+(2,3,0,3,0,2,0,1,0,3,3,4,3,1,3,1,1,1,3,1,4,3,4,3,3,3,0,0,3,1,5,4,3,1,4,3,2,5,5,4,4,4,4,3,3,4,4,4,0,2,1,1,3,2,0,1,2,0,0,1,0,4,1,3,3,3,0,3,0,1,0,4,4,4,5,5,3,0,2,0,0,4,4),
+(0,2,0,1,0,3,1,3,0,2,3,3,3,0,3,1,0,0,3,0,3,2,3,1,3,2,1,1,0,0,4,2,1,0,2,3,1,4,3,2,0,4,4,3,1,3,1,3,0,1,0,0,1,0,0,0,1,0,0,0,0,4,1,1,1,2,0,3,0,0,0,3,4,2,4,3,2,0,1,0,0,3,3),
+(0,1,0,4,0,5,0,4,0,2,4,4,2,3,3,2,3,3,5,3,3,3,4,3,4,2,3,0,4,3,3,3,4,1,4,3,2,1,5,5,3,4,5,1,3,5,4,2,0,3,3,0,1,3,0,4,2,0,1,3,1,4,3,3,3,3,0,3,0,1,0,3,4,4,4,5,5,0,3,0,1,4,5),
+(0,2,0,3,0,3,0,0,0,2,3,1,3,0,4,0,1,1,3,0,3,4,3,2,3,1,0,3,3,2,3,1,3,0,2,3,0,2,1,4,1,2,2,0,0,3,3,0,0,2,0,0,0,1,0,0,0,0,2,2,0,3,2,1,3,3,0,2,0,2,0,0,3,3,1,2,4,0,3,0,2,2,3),
+(2,4,0,5,0,4,0,4,0,2,4,4,4,3,4,3,3,3,1,2,4,3,4,3,4,4,5,0,3,3,3,3,2,0,4,3,1,4,3,4,1,4,4,3,3,4,4,3,1,2,3,0,4,2,0,4,1,0,3,3,0,4,3,3,3,4,0,4,0,2,0,3,5,3,4,5,2,0,3,0,0,4,5),
+(0,3,0,4,0,1,0,1,0,1,3,2,2,1,3,0,3,0,2,0,2,0,3,0,2,0,0,0,1,0,1,1,0,0,3,1,0,0,0,4,0,3,1,0,2,1,3,0,0,0,0,0,0,3,0,0,0,0,0,0,0,4,2,2,3,1,0,3,0,0,0,1,4,4,4,3,0,0,4,0,0,1,4),
+(1,4,1,5,0,3,0,3,0,4,5,4,4,3,5,3,3,4,4,3,4,1,3,3,3,3,2,1,4,1,5,4,3,1,4,4,3,5,4,4,3,5,4,3,3,4,4,4,0,3,3,1,2,3,0,3,1,0,3,3,0,5,4,4,4,4,4,4,3,3,5,4,4,3,3,5,4,0,3,2,0,4,4),
+(0,2,0,3,0,1,0,0,0,1,3,3,3,2,4,1,3,0,3,1,3,0,2,2,1,1,0,0,2,0,4,3,1,0,4,3,0,4,4,4,1,4,3,1,1,3,3,1,0,2,0,0,1,3,0,0,0,0,2,0,0,4,3,2,4,3,5,4,3,3,3,4,3,3,4,3,3,0,2,1,0,3,3),
+(0,2,0,4,0,3,0,2,0,2,5,5,3,4,4,4,4,1,4,3,3,0,4,3,4,3,1,3,3,2,4,3,0,3,4,3,0,3,4,4,2,4,4,0,4,5,3,3,2,2,1,1,1,2,0,1,5,0,3,3,2,4,3,3,3,4,0,3,0,2,0,4,4,3,5,5,0,0,3,0,2,3,3),
+(0,3,0,4,0,3,0,1,0,3,4,3,3,1,3,3,3,0,3,1,3,0,4,3,3,1,1,0,3,0,3,3,0,0,4,4,0,1,5,4,3,3,5,0,3,3,4,3,0,2,0,1,1,1,0,1,3,0,1,2,1,3,3,2,3,3,0,3,0,1,0,1,3,3,4,4,1,0,1,2,2,1,3),
+(0,1,0,4,0,4,0,3,0,1,3,3,3,2,3,1,1,0,3,0,3,3,4,3,2,4,2,0,1,0,4,3,2,0,4,3,0,5,3,3,2,4,4,4,3,3,3,4,0,1,3,0,0,1,0,0,1,0,0,0,0,4,2,3,3,3,0,3,0,0,0,4,4,4,5,3,2,0,3,3,0,3,5),
+(0,2,0,3,0,0,0,3,0,1,3,0,2,0,0,0,1,0,3,1,1,3,3,0,0,3,0,0,3,0,2,3,1,0,3,1,0,3,3,2,0,4,2,2,0,2,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,2,1,2,0,1,0,1,0,0,0,1,3,1,2,0,0,0,1,0,0,1,4),
+(0,3,0,3,0,5,0,1,0,2,4,3,1,3,3,2,1,1,5,2,1,0,5,1,2,0,0,0,3,3,2,2,3,2,4,3,0,0,3,3,1,3,3,0,2,5,3,4,0,3,3,0,1,2,0,2,2,0,3,2,0,2,2,3,3,3,0,2,0,1,0,3,4,4,2,5,4,0,3,0,0,3,5),
+(0,3,0,3,0,3,0,1,0,3,3,3,3,0,3,0,2,0,2,1,1,0,2,0,1,0,0,0,2,1,0,0,1,0,3,2,0,0,3,3,1,2,3,1,0,3,3,0,0,1,0,0,0,0,0,2,0,0,0,0,0,2,3,1,2,3,0,3,0,1,0,3,2,1,0,4,3,0,1,1,0,3,3),
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+(0,4,0,5,0,4,0,3,0,3,5,5,3,2,4,3,4,0,5,4,4,1,4,4,4,3,3,3,4,3,5,5,2,3,3,4,1,2,5,5,3,5,5,2,3,5,5,4,0,3,2,0,3,3,1,1,5,1,4,1,0,4,3,2,3,5,0,4,0,3,0,5,4,3,4,3,0,0,4,1,0,4,4),
+(1,3,0,4,0,2,0,2,0,2,5,5,3,3,3,3,3,0,4,2,3,4,4,4,3,4,0,0,3,4,5,4,3,3,3,3,2,5,5,4,5,5,5,4,3,5,5,5,1,3,1,0,1,0,0,3,2,0,4,2,0,5,2,3,2,4,1,3,0,3,0,4,5,4,5,4,3,0,4,2,0,5,4),
+(0,3,0,4,0,5,0,3,0,3,4,4,3,2,3,2,3,3,3,3,3,2,4,3,3,2,2,0,3,3,3,3,3,1,3,3,3,0,4,4,3,4,4,1,1,4,4,2,0,3,1,0,1,1,0,4,1,0,2,3,1,3,3,1,3,4,0,3,0,1,0,3,1,3,0,0,1,0,2,0,0,4,4),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0),
+(0,3,0,3,0,2,0,3,0,1,5,4,3,3,3,1,4,2,1,2,3,4,4,2,4,4,5,0,3,1,4,3,4,0,4,3,3,3,2,3,2,5,3,4,3,2,2,3,0,0,3,0,2,1,0,1,2,0,0,0,0,2,1,1,3,1,0,2,0,4,0,3,4,4,4,5,2,0,2,0,0,1,3),
+(0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,1,0,0,1,1,0,0,0,4,2,1,1,0,1,0,3,2,0,0,3,1,1,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,1,0,0,0,2,0,0,0,1,4,0,4,2,1,0,0,0,0,0,1),
+(0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,1,0,0,0,0,0,0,1,0,1,0,0,0,0,3,1,0,0,0,2,0,2,1,0,0,1,2,1,0,1,1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,1,3,1,0,0,0,0,0,1,0,0,2,1,0,0,0,0,0,0,0,0,2),
+(0,4,0,4,0,4,0,3,0,4,4,3,4,2,4,3,2,0,4,4,4,3,5,3,5,3,3,2,4,2,4,3,4,3,1,4,0,2,3,4,4,4,3,3,3,4,4,4,3,4,1,3,4,3,2,1,2,1,3,3,3,4,4,3,3,5,0,4,0,3,0,4,3,3,3,2,1,0,3,0,0,3,3),
+(0,4,0,3,0,3,0,3,0,3,5,5,3,3,3,3,4,3,4,3,3,3,4,4,4,3,3,3,3,4,3,5,3,3,1,3,2,4,5,5,5,5,4,3,4,5,5,3,2,2,3,3,3,3,2,3,3,1,2,3,2,4,3,3,3,4,0,4,0,2,0,4,3,2,2,1,2,0,3,0,0,4,1),
+)
+
+class JapaneseContextAnalysis:
+    def __init__(self):
+        self.reset()
+
+    def reset(self):
+        self._mTotalRel = 0  # total sequence received
+        # category counters, each interger counts sequence in its category
+        self._mRelSample = [0] * NUM_OF_CATEGORY
+        # if last byte in current buffer is not the last byte of a character,
+        # we need to know how many bytes to skip in next buffer
+        self._mNeedToSkipCharNum = 0
+        self._mLastCharOrder = -1  # The order of previous char
+        # If this flag is set to True, detection is done and conclusion has
+        # been made
+        self._mDone = False
+
+    def feed(self, aBuf, aLen):
+        if self._mDone:
+            return
+
+        # The buffer we got is byte oriented, and a character may span in more than one
+        # buffers. In case the last one or two byte in last buffer is not
+        # complete, we record how many byte needed to complete that character
+        # and skip these bytes here.  We can choose to record those bytes as
+        # well and analyse the character once it is complete, but since a
+        # character will not make much difference, by simply skipping
+        # this character will simply our logic and improve performance.
+        i = self._mNeedToSkipCharNum
+        while i < aLen:
+            order, charLen = self.get_order(aBuf[i:i + 2])
+            i += charLen
+            if i > aLen:
+                self._mNeedToSkipCharNum = i - aLen
+                self._mLastCharOrder = -1
+            else:
+                if (order != -1) and (self._mLastCharOrder != -1):
+                    self._mTotalRel += 1
+                    if self._mTotalRel > MAX_REL_THRESHOLD:
+                        self._mDone = True
+                        break
+                    self._mRelSample[jp2CharContext[self._mLastCharOrder][order]] += 1
+                self._mLastCharOrder = order
+
+    def got_enough_data(self):
+        return self._mTotalRel > ENOUGH_REL_THRESHOLD
+
+    def get_confidence(self):
+        # This is just one way to calculate confidence. It works well for me.
+        if self._mTotalRel > MINIMUM_DATA_THRESHOLD:
+            return (self._mTotalRel - self._mRelSample[0]) / self._mTotalRel
+        else:
+            return DONT_KNOW
+
+    def get_order(self, aBuf):
+        return -1, 1
+
+class SJISContextAnalysis(JapaneseContextAnalysis):
+    def __init__(self):
+        self.charset_name = "SHIFT_JIS"
+
+    def get_charset_name(self):
+        return self.charset_name
+
+    def get_order(self, aBuf):
+        if not aBuf:
+            return -1, 1
+        # find out current char's byte length
+        first_char = wrap_ord(aBuf[0])
+        if ((0x81 <= first_char <= 0x9F) or (0xE0 <= first_char <= 0xFC)):
+            charLen = 2
+            if (first_char == 0x87) or (0xFA <= first_char <= 0xFC):
+                self.charset_name = "CP932"
+        else:
+            charLen = 1
+
+        # return its order if it is hiragana
+        if len(aBuf) > 1:
+            second_char = wrap_ord(aBuf[1])
+            if (first_char == 202) and (0x9F <= second_char <= 0xF1):
+                return second_char - 0x9F, charLen
+
+        return -1, charLen
+
+class EUCJPContextAnalysis(JapaneseContextAnalysis):
+    def get_order(self, aBuf):
+        if not aBuf:
+            return -1, 1
+        # find out current char's byte length
+        first_char = wrap_ord(aBuf[0])
+        if (first_char == 0x8E) or (0xA1 <= first_char <= 0xFE):
+            charLen = 2
+        elif first_char == 0x8F:
+            charLen = 3
+        else:
+            charLen = 1
+
+        # return its order if it is hiragana
+        if len(aBuf) > 1:
+            second_char = wrap_ord(aBuf[1])
+            if (first_char == 0xA4) and (0xA1 <= second_char <= 0xF3):
+                return second_char - 0xA1, charLen
+
+        return -1, charLen
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py
new file mode 100644
index 0000000..e5788fc
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langbulgarianmodel.py
@@ -0,0 +1,229 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+# this table is modified base on win1251BulgarianCharToOrderMap, so
+# only number <64 is sure valid
+
+Latin5_BulgarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 77, 90, 99,100, 72,109,107,101, 79,185, 81,102, 76, 94, 82,  # 40
+110,186,108, 91, 74,119, 84, 96,111,187,115,253,253,253,253,253,  # 50
+253, 65, 69, 70, 66, 63, 68,112,103, 92,194,104, 95, 86, 87, 71,  # 60
+116,195, 85, 93, 97,113,196,197,198,199,200,253,253,253,253,253,  # 70
+194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,  # 80
+210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,  # 90
+ 81,226,227,228,229,230,105,231,232,233,234,235,236, 45,237,238,  # a0
+ 31, 32, 35, 43, 37, 44, 55, 47, 40, 59, 33, 46, 38, 36, 41, 30,  # b0
+ 39, 28, 34, 51, 48, 49, 53, 50, 54, 57, 61,239, 67,240, 60, 56,  # c0
+  1, 18,  9, 20, 11,  3, 23, 15,  2, 26, 12, 10, 14,  6,  4, 13,  # d0
+  7,  8,  5, 19, 29, 25, 22, 21, 27, 24, 17, 75, 52,241, 42, 16,  # e0
+ 62,242,243,244, 58,245, 98,246,247,248,249,250,251, 91,252,253,  # f0
+)
+
+win1251BulgarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 77, 90, 99,100, 72,109,107,101, 79,185, 81,102, 76, 94, 82,  # 40
+110,186,108, 91, 74,119, 84, 96,111,187,115,253,253,253,253,253,  # 50
+253, 65, 69, 70, 66, 63, 68,112,103, 92,194,104, 95, 86, 87, 71,  # 60
+116,195, 85, 93, 97,113,196,197,198,199,200,253,253,253,253,253,  # 70
+206,207,208,209,210,211,212,213,120,214,215,216,217,218,219,220,  # 80
+221, 78, 64, 83,121, 98,117,105,222,223,224,225,226,227,228,229,  # 90
+ 88,230,231,232,233,122, 89,106,234,235,236,237,238, 45,239,240,  # a0
+ 73, 80,118,114,241,242,243,244,245, 62, 58,246,247,248,249,250,  # b0
+ 31, 32, 35, 43, 37, 44, 55, 47, 40, 59, 33, 46, 38, 36, 41, 30,  # c0
+ 39, 28, 34, 51, 48, 49, 53, 50, 54, 57, 61,251, 67,252, 60, 56,  # d0
+  1, 18,  9, 20, 11,  3, 23, 15,  2, 26, 12, 10, 14,  6,  4, 13,  # e0
+  7,  8,  5, 19, 29, 25, 22, 21, 27, 24, 17, 75, 52,253, 42, 16,  # f0
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 96.9392%
+# first 1024 sequences:3.0618%
+# rest  sequences:     0.2992%
+# negative sequences:  0.0020%
+BulgarianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,2,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,3,2,2,3,2,2,1,2,2,
+3,1,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,0,3,3,3,3,3,3,3,3,3,3,0,3,0,1,
+0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,2,3,3,3,3,3,3,3,3,0,3,1,0,
+0,1,0,0,0,0,0,0,0,0,1,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,2,2,2,3,3,3,3,3,3,3,3,3,3,3,3,3,1,3,2,3,3,3,3,3,3,3,3,0,3,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,1,3,2,3,3,3,3,3,3,3,3,0,3,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,2,3,2,2,1,3,3,3,3,2,2,2,1,1,2,0,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,2,3,2,2,3,3,1,1,2,3,3,2,3,3,3,3,2,1,2,0,2,0,3,0,0,
+0,0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,1,3,3,3,3,3,2,3,2,3,3,3,3,3,2,3,3,1,3,0,3,0,2,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,1,3,3,2,3,3,3,1,3,3,2,3,2,2,2,0,0,2,0,2,0,2,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,3,0,3,3,3,2,2,3,3,3,1,2,2,3,2,1,1,2,0,2,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,2,0,0,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,2,3,3,1,2,3,2,2,2,3,3,3,3,3,2,2,3,1,2,0,2,1,2,0,0,
+0,0,0,0,0,0,0,0,0,0,3,0,0,1,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,1,3,3,3,3,3,2,3,3,3,2,3,3,2,3,2,2,2,3,1,2,0,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,3,3,3,1,1,1,2,2,1,3,1,3,2,2,3,0,0,1,0,1,0,1,0,0,
+0,0,0,1,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,2,2,3,2,2,3,1,2,1,1,1,2,3,1,3,1,2,2,0,1,1,1,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,1,3,2,2,3,3,1,2,3,1,1,3,3,3,3,1,2,2,1,1,1,0,2,0,2,0,1,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,2,2,3,3,3,2,2,1,1,2,0,2,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,0,1,2,1,3,3,2,3,3,3,3,3,2,3,2,1,0,3,1,2,1,2,1,2,3,2,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,1,2,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,1,3,3,2,3,3,2,2,2,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,0,3,3,3,3,3,2,1,1,2,1,3,3,0,3,1,1,1,1,3,2,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,2,2,2,3,3,3,3,3,3,3,3,3,3,3,1,1,3,1,3,3,2,3,2,2,2,3,0,2,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,2,3,3,2,2,3,2,1,1,1,1,1,3,1,3,1,1,0,0,0,1,0,0,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,2,3,2,0,3,2,0,3,0,2,0,0,2,1,3,1,0,0,1,0,0,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,2,1,1,1,1,2,1,1,2,1,1,1,2,2,1,2,1,1,1,0,1,1,0,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,2,1,3,1,1,2,1,3,2,1,1,0,1,2,3,2,1,1,1,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,2,2,1,0,1,0,0,1,0,0,0,2,1,0,3,0,0,1,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,2,3,2,3,3,1,3,2,1,1,1,2,1,1,2,1,3,0,1,0,0,0,1,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,2,2,3,3,2,3,2,2,2,3,1,2,2,1,1,2,1,1,2,2,0,1,1,0,1,0,2,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,1,3,1,0,2,2,1,3,2,1,0,0,2,0,2,0,1,0,0,0,0,0,0,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,3,1,2,0,2,3,1,2,3,2,0,1,3,1,2,1,1,1,0,0,1,0,0,2,2,2,3,
+2,2,2,2,1,2,1,1,2,2,1,1,2,0,1,1,1,0,0,1,1,0,0,1,1,0,0,0,1,1,0,1,
+3,3,3,3,3,2,1,2,2,1,2,0,2,0,1,0,1,2,1,2,1,1,0,0,0,1,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,
+3,3,2,3,3,1,1,3,1,0,3,2,1,0,0,0,1,2,0,2,0,1,0,0,0,1,0,1,2,1,2,2,
+1,1,1,1,1,1,1,2,2,2,1,1,1,1,1,1,1,0,1,2,1,1,1,0,0,0,0,0,1,1,0,0,
+3,1,0,1,0,2,3,2,2,2,3,2,2,2,2,2,1,0,2,1,2,1,1,1,0,1,2,1,2,2,2,1,
+1,1,2,2,2,2,1,2,1,1,0,1,2,1,2,2,2,1,1,1,0,1,1,1,1,2,0,1,0,0,0,0,
+2,3,2,3,3,0,0,2,1,0,2,1,0,0,0,0,2,3,0,2,0,0,0,0,0,1,0,0,2,0,1,2,
+2,1,2,1,2,2,1,1,1,2,1,1,1,0,1,2,2,1,1,1,1,1,0,1,1,1,0,0,1,2,0,0,
+3,3,2,2,3,0,2,3,1,1,2,0,0,0,1,0,0,2,0,2,0,0,0,1,0,1,0,1,2,0,2,2,
+1,1,1,1,2,1,0,1,2,2,2,1,1,1,1,1,1,1,0,1,1,1,0,0,0,0,0,0,1,1,0,0,
+2,3,2,3,3,0,0,3,0,1,1,0,1,0,0,0,2,2,1,2,0,0,0,0,0,0,0,0,2,0,1,2,
+2,2,1,1,1,1,1,2,2,2,1,0,2,0,1,0,1,0,0,1,0,1,0,0,1,0,0,0,0,1,0,0,
+3,3,3,3,2,2,2,2,2,0,2,1,1,1,1,2,1,2,1,1,0,2,0,1,0,1,0,0,2,0,1,2,
+1,1,1,1,1,1,1,2,2,1,1,0,2,0,1,0,2,0,0,1,1,1,0,0,2,0,0,0,1,1,0,0,
+2,3,3,3,3,1,0,0,0,0,0,0,0,0,0,0,2,0,0,1,1,0,0,0,0,0,0,1,2,0,1,2,
+2,2,2,1,1,2,1,1,2,2,2,1,2,0,1,1,1,1,1,1,0,1,1,1,1,0,0,1,1,1,0,0,
+2,3,3,3,3,0,2,2,0,2,1,0,0,0,1,1,1,2,0,2,0,0,0,3,0,0,0,0,2,0,2,2,
+1,1,1,2,1,2,1,1,2,2,2,1,2,0,1,1,1,0,1,1,1,1,0,2,1,0,0,0,1,1,0,0,
+2,3,3,3,3,0,2,1,0,0,2,0,0,0,0,0,1,2,0,2,0,0,0,0,0,0,0,0,2,0,1,2,
+1,1,1,2,1,1,1,1,2,2,2,0,1,0,1,1,1,0,0,1,1,1,0,0,1,0,0,0,0,1,0,0,
+3,3,2,2,3,0,1,0,1,0,0,0,0,0,0,0,1,1,0,3,0,0,0,0,0,0,0,0,1,0,2,2,
+1,1,1,1,1,2,1,1,2,2,1,2,2,1,0,1,1,1,1,1,0,1,0,0,1,0,0,0,1,1,0,0,
+3,1,0,1,0,2,2,2,2,3,2,1,1,1,2,3,0,0,1,0,2,1,1,0,1,1,1,1,2,1,1,1,
+1,2,2,1,2,1,2,2,1,1,0,1,2,1,2,2,1,1,1,0,0,1,1,1,2,1,0,1,0,0,0,0,
+2,1,0,1,0,3,1,2,2,2,2,1,2,2,1,1,1,0,2,1,2,2,1,1,2,1,1,0,2,1,1,1,
+1,2,2,2,2,2,2,2,1,2,0,1,1,0,2,1,1,1,1,1,0,0,1,1,1,1,0,1,0,0,0,0,
+2,1,1,1,1,2,2,2,2,1,2,2,2,1,2,2,1,1,2,1,2,3,2,2,1,1,1,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,3,2,0,1,2,0,1,2,1,1,0,1,0,1,2,1,2,0,0,0,1,1,0,0,0,1,0,0,2,
+1,1,0,0,1,1,0,1,1,1,1,0,2,0,1,1,1,0,0,1,1,0,0,0,0,1,0,0,0,1,0,0,
+2,0,0,0,0,1,2,2,2,2,2,2,2,1,2,1,1,1,1,1,1,1,0,1,1,1,1,1,2,1,1,1,
+1,2,2,2,2,1,1,2,1,2,1,1,1,0,2,1,2,1,1,1,0,2,1,1,1,1,0,1,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,
+1,1,0,1,0,1,1,1,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,3,2,0,0,0,0,1,0,0,0,0,0,0,1,1,0,2,0,0,0,0,0,0,0,0,1,0,1,2,
+1,1,1,1,1,1,0,0,2,2,2,2,2,0,1,1,0,1,1,1,1,1,0,0,1,0,0,0,1,1,0,1,
+2,3,1,2,1,0,1,1,0,2,2,2,0,0,1,0,0,1,1,1,1,0,0,0,0,0,0,0,1,0,1,2,
+1,1,1,1,2,1,1,1,1,1,1,1,1,0,1,1,0,1,0,1,0,1,0,0,1,0,0,0,0,1,0,0,
+2,2,2,2,2,0,0,2,0,0,2,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,2,0,2,2,
+1,1,1,1,1,0,0,1,2,1,1,0,1,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,0,2,0,1,1,0,0,0,1,0,0,2,0,2,0,0,0,0,0,0,0,0,0,0,1,1,
+0,0,0,1,1,1,1,1,1,1,1,1,1,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,3,2,0,0,1,0,0,1,0,0,0,0,0,0,1,0,2,0,0,0,1,0,0,0,0,0,0,0,2,
+1,1,0,0,1,0,0,0,1,1,0,0,1,0,1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+2,1,2,2,2,1,2,1,2,2,1,1,2,1,1,1,0,1,1,1,1,2,0,1,0,1,1,1,1,0,1,1,
+1,1,2,1,1,1,1,1,1,0,0,1,2,1,1,1,1,1,1,0,0,1,1,1,0,0,0,0,0,0,0,0,
+1,0,0,1,3,1,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,2,1,0,0,1,0,2,0,0,0,0,0,1,1,1,0,1,0,0,0,0,0,0,0,0,2,0,0,1,
+0,2,0,1,0,0,1,1,2,0,1,0,1,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,1,1,0,2,1,0,1,1,1,0,0,1,0,2,0,1,0,0,0,0,0,0,0,0,0,1,
+0,1,0,0,1,0,0,0,1,1,0,0,1,0,0,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,2,2,0,0,1,0,0,0,1,0,1,0,0,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,1,
+0,1,0,1,1,1,0,0,1,1,1,0,1,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+2,0,1,0,0,1,2,1,1,1,1,1,1,2,2,1,0,0,1,0,1,0,0,0,0,1,1,1,1,0,0,0,
+1,1,2,1,1,1,1,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,1,2,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0,1,
+0,0,0,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,2,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
+0,1,1,0,1,1,1,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,
+1,0,1,0,0,1,1,1,1,1,1,1,1,1,1,1,0,0,1,0,2,0,0,2,0,1,0,0,1,0,0,1,
+1,1,0,0,1,1,0,1,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,
+1,1,1,1,1,1,1,2,0,0,0,0,0,0,2,1,0,1,1,0,0,1,1,1,0,1,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,0,1,1,1,1,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+)
+
+Latin5BulgarianModel = {
+  'charToOrderMap': Latin5_BulgarianCharToOrderMap,
+  'precedenceMatrix': BulgarianLangModel,
+  'mTypicalPositiveRatio': 0.969392,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-5"
+}
+
+Win1251BulgarianModel = {
+  'charToOrderMap': win1251BulgarianCharToOrderMap,
+  'precedenceMatrix': BulgarianLangModel,
+  'mTypicalPositiveRatio': 0.969392,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1251"
+}
+
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py
new file mode 100644
index 0000000..a86f54b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langcyrillicmodel.py
@@ -0,0 +1,329 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# KOI8-R language model
+# Character Mapping Table:
+KOI8R_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,  # 80
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,  # 90
+223,224,225, 68,226,227,228,229,230,231,232,233,234,235,236,237,  # a0
+238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,  # b0
+ 27,  3, 21, 28, 13,  2, 39, 19, 26,  4, 23, 11,  8, 12,  5,  1,  # c0
+ 15, 16,  9,  7,  6, 14, 24, 10, 17, 18, 20, 25, 30, 29, 22, 54,  # d0
+ 59, 37, 44, 58, 41, 48, 53, 46, 55, 42, 60, 36, 49, 38, 31, 34,  # e0
+ 35, 43, 45, 32, 40, 52, 56, 33, 61, 62, 51, 57, 47, 63, 50, 70,  # f0
+)
+
+win1251_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+239,240,241,242,243,244,245,246, 68,247,248,249,250,251,252,253,
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+)
+
+latin5_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+239, 68,240,241,242,243,244,245,246,247,248,249,250,251,252,255,
+)
+
+macCyrillic_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+239,240,241,242,243,244,245,246,247,248,249,250,251,252, 68, 16,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27,255,
+)
+
+IBM855_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+191,192,193,194, 68,195,196,197,198,199,200,201,202,203,204,205,
+206,207,208,209,210,211,212,213,214,215,216,217, 27, 59, 54, 70,
+  3, 37, 21, 44, 28, 58, 13, 41,  2, 48, 39, 53, 19, 46,218,219,
+220,221,222,223,224, 26, 55,  4, 42,225,226,227,228, 23, 60,229,
+230,231,232,233,234,235, 11, 36,236,237,238,239,240,241,242,243,
+  8, 49, 12, 38,  5, 31,  1, 34, 15,244,245,246,247, 35, 16,248,
+ 43,  9, 45,  7, 32,  6, 40, 14, 52, 24, 56, 10, 33, 17, 61,249,
+250, 18, 62, 20, 51, 25, 57, 30, 47, 29, 63, 22, 50,251,252,255,
+)
+
+IBM866_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,142,143,144,145,146,147,148,149,150,151,152, 74,153, 75,154,  # 40
+155,156,157,158,159,160,161,162,163,164,165,253,253,253,253,253,  # 50
+253, 71,172, 66,173, 65,174, 76,175, 64,176,177, 77, 72,178, 69,  # 60
+ 67,179, 78, 73,180,181, 79,182,183,184,185,253,253,253,253,253,  # 70
+ 37, 44, 33, 46, 41, 48, 56, 51, 42, 60, 36, 49, 38, 31, 34, 35,
+ 45, 32, 40, 52, 53, 55, 58, 50, 57, 63, 70, 62, 61, 47, 59, 43,
+  3, 21, 10, 19, 13,  2, 24, 20,  4, 23, 11,  8, 12,  5,  1, 15,
+191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,
+207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,
+223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,
+  9,  7,  6, 14, 39, 26, 28, 22, 25, 29, 54, 18, 17, 30, 27, 16,
+239, 68,240,241,242,243,244,245,246,247,248,249,250,251,252,255,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 97.6601%
+# first 1024 sequences: 2.3389%
+# rest  sequences:      0.1237%
+# negative sequences:   0.0009%
+RussianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,1,3,3,3,3,1,3,3,3,2,3,2,3,3,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,0,3,2,2,2,2,2,0,0,2,
+3,3,3,2,3,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,3,2,3,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,2,2,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,2,3,3,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,2,1,
+0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,0,0,3,3,3,3,3,3,3,3,3,3,3,2,1,
+0,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,2,2,2,3,1,3,3,1,3,3,3,3,2,2,3,0,2,2,2,3,3,2,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,3,3,2,2,3,2,3,3,3,2,1,2,2,0,1,2,2,2,2,2,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,3,0,2,2,3,3,2,1,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,1,2,3,2,2,3,2,3,3,3,3,2,2,3,0,3,2,2,3,1,1,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,2,3,3,3,3,2,2,2,0,3,3,3,2,2,2,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,2,3,2,3,3,3,3,3,3,2,3,2,2,0,1,3,2,1,2,2,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,2,1,1,3,0,1,1,1,1,2,1,1,0,2,2,2,1,2,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,2,2,2,2,1,3,2,3,2,3,2,1,2,2,0,1,1,2,1,2,1,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,2,2,3,2,3,3,3,2,2,2,2,0,2,2,2,2,3,1,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,2,3,2,2,3,3,3,3,3,3,3,3,3,1,3,2,0,0,3,3,3,3,2,3,3,3,3,2,3,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,3,2,2,3,3,0,2,1,0,3,2,3,2,3,0,0,1,2,0,0,1,0,1,2,1,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,3,0,2,3,3,3,3,2,3,3,3,3,1,2,2,0,0,2,3,2,2,2,3,2,3,2,2,3,0,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,0,2,3,2,3,0,1,2,3,3,2,0,2,3,0,0,2,3,2,2,0,1,3,1,3,2,2,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,3,0,2,3,3,3,3,3,3,3,3,2,1,3,2,0,0,2,2,3,3,3,2,3,3,0,2,2,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,2,2,2,3,3,0,0,1,1,1,1,1,2,0,0,1,1,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,3,3,3,3,3,0,3,2,3,3,2,3,2,0,2,1,0,1,1,0,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,2,2,2,2,3,1,3,2,3,1,1,2,1,0,2,2,2,2,1,3,1,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+2,2,3,3,3,3,3,1,2,2,1,3,1,0,3,0,0,3,0,0,0,1,1,0,1,2,1,0,0,0,0,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,2,1,1,3,3,3,2,2,1,2,2,3,1,1,2,0,0,2,2,1,3,0,0,2,1,1,2,1,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,2,3,3,3,3,1,2,2,2,1,2,1,3,3,1,1,2,1,2,1,2,2,0,2,0,0,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,3,2,1,3,2,2,3,2,0,3,2,0,3,0,1,0,1,1,0,0,1,1,1,1,0,1,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,3,3,3,2,2,2,3,3,1,2,1,2,1,0,1,0,1,1,0,1,0,0,2,1,1,1,0,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,1,1,2,1,2,3,3,2,2,1,2,2,3,0,2,1,0,0,2,2,3,2,1,2,2,2,2,2,3,1,0,
+0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,1,1,0,1,1,2,2,1,1,3,0,0,1,3,1,1,1,0,0,0,1,0,1,1,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,3,3,3,2,0,0,0,2,1,0,1,0,2,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,1,0,0,2,3,2,2,2,1,2,2,2,1,2,1,0,0,1,1,1,0,2,0,1,1,1,0,0,1,1,
+1,0,0,0,0,0,1,2,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,3,0,0,0,0,1,0,0,0,0,3,0,1,2,1,0,0,0,0,0,0,0,1,1,0,0,1,1,
+1,0,1,0,1,2,0,0,1,1,2,1,0,1,1,1,1,0,1,1,1,1,0,1,0,0,1,0,0,1,1,0,
+2,2,3,2,2,2,3,1,2,2,2,2,2,2,2,2,1,1,1,1,1,1,1,0,1,0,1,1,1,0,2,1,
+1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,0,1,0,1,1,0,1,1,1,0,1,1,0,
+3,3,3,2,2,2,2,3,2,2,1,1,2,2,2,2,1,1,3,1,2,1,2,0,0,1,1,0,1,0,2,1,
+1,1,1,1,1,2,1,0,1,1,1,1,0,1,0,0,1,1,0,0,1,0,1,0,0,1,0,0,0,1,1,0,
+2,0,0,1,0,3,2,2,2,2,1,2,1,2,1,2,0,0,0,2,1,2,2,1,1,2,2,0,1,1,0,2,
+1,1,1,1,1,0,1,1,1,2,1,1,1,2,1,0,1,2,1,1,1,1,0,1,1,1,0,0,1,0,0,1,
+1,3,2,2,2,1,1,1,2,3,0,0,0,0,2,0,2,2,1,0,0,0,0,0,0,1,0,0,0,0,1,1,
+1,0,1,1,0,1,0,1,1,0,1,1,0,2,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,
+2,3,2,3,2,1,2,2,2,2,1,0,0,0,2,0,0,1,1,0,0,0,0,0,0,0,1,1,0,0,2,1,
+1,1,2,1,0,2,0,0,1,0,1,0,0,1,0,0,1,1,0,1,1,0,0,0,0,0,1,0,0,0,0,0,
+3,0,0,1,0,2,2,2,3,2,2,2,2,2,2,2,0,0,0,2,1,2,1,1,1,2,2,0,0,0,1,2,
+1,1,1,1,1,0,1,2,1,1,1,1,1,1,1,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0,0,1,
+2,3,2,3,3,2,0,1,1,1,0,0,1,0,2,0,1,1,3,1,0,0,0,0,0,0,0,1,0,0,2,1,
+1,1,1,1,1,1,1,0,1,0,1,1,1,1,0,1,1,1,0,0,1,1,0,1,0,0,0,0,0,0,1,0,
+2,3,3,3,3,1,2,2,2,2,0,1,1,0,2,1,1,1,2,1,0,1,1,0,0,1,0,1,0,0,2,0,
+0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,3,3,2,0,0,1,1,2,2,1,0,0,2,0,1,1,3,0,0,1,0,0,0,0,0,1,0,1,2,1,
+1,1,2,0,1,1,1,0,1,0,1,1,0,1,0,1,1,1,1,0,1,0,0,0,0,0,0,1,0,1,1,0,
+1,3,2,3,2,1,0,0,2,2,2,0,1,0,2,0,1,1,1,0,1,0,0,0,3,0,1,1,0,0,2,1,
+1,1,1,0,1,1,0,0,0,0,1,1,0,1,0,0,2,1,1,0,1,0,0,0,1,0,1,0,0,1,1,0,
+3,1,2,1,1,2,2,2,2,2,2,1,2,2,1,1,0,0,0,2,2,2,0,0,0,1,2,1,0,1,0,1,
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,2,1,1,1,0,1,0,1,1,0,1,1,1,0,0,1,
+3,0,0,0,0,2,0,1,1,1,1,1,1,1,0,1,0,0,0,1,1,1,0,1,0,1,1,0,0,1,0,1,
+1,1,0,0,1,0,0,0,1,0,1,1,0,0,1,0,1,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1,
+1,3,3,2,2,0,0,0,2,2,0,0,0,1,2,0,1,1,2,0,0,0,0,0,0,0,0,1,0,0,2,1,
+0,1,1,0,0,1,1,0,0,0,1,1,0,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+2,3,2,3,2,0,0,0,0,1,1,0,0,0,2,0,2,0,2,0,0,0,0,0,1,0,0,1,0,0,1,1,
+1,1,2,0,1,2,1,0,1,1,2,1,1,1,1,1,2,1,1,0,1,0,0,1,1,1,1,1,0,1,1,0,
+1,3,2,2,2,1,0,0,2,2,1,0,1,2,2,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,1,1,
+0,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,0,2,3,1,2,2,2,2,2,2,1,1,0,0,0,1,0,1,0,2,1,1,1,0,0,0,0,1,
+1,1,0,1,1,0,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
+2,0,2,0,0,1,0,3,2,1,2,1,2,2,0,1,0,0,0,2,1,0,0,2,1,1,1,1,0,2,0,2,
+2,1,1,1,1,1,1,1,1,1,1,1,1,2,1,0,1,1,1,1,0,0,0,1,1,1,1,0,1,0,0,1,
+1,2,2,2,2,1,0,0,1,0,0,0,0,0,2,0,1,1,1,1,0,0,0,0,1,0,1,2,0,0,2,0,
+1,0,1,1,1,2,1,0,1,0,1,1,0,0,1,0,1,1,1,0,1,0,0,0,1,0,0,1,0,1,1,0,
+2,1,2,2,2,0,3,0,1,1,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+0,0,0,1,1,1,0,0,1,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,
+1,2,2,3,2,2,0,0,1,1,2,0,1,2,1,0,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,1,
+0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,0,1,1,0,
+2,2,1,1,2,1,2,2,2,2,2,1,2,2,0,1,0,0,0,1,2,2,2,1,2,1,1,1,1,1,2,1,
+1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0,1,1,1,0,0,0,0,1,1,1,0,1,1,0,0,1,
+1,2,2,2,2,0,1,0,2,2,0,0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,
+0,0,1,0,0,1,0,0,0,0,1,0,1,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,0,0,2,2,2,0,1,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,1,
+0,1,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,2,0,0,0,0,1,0,0,1,1,2,0,0,0,0,1,0,1,0,0,1,0,0,2,0,0,0,1,
+0,0,1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,
+1,2,2,2,1,1,2,0,2,1,1,1,1,0,2,2,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,1,
+0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+1,0,2,1,2,0,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,
+0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+1,0,0,0,0,2,0,1,2,1,0,1,1,1,0,1,0,0,0,1,0,1,0,0,1,0,1,0,0,0,0,1,
+0,0,0,0,0,1,0,0,1,1,0,0,1,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,
+2,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,0,0,0,1,0,0,0,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,1,1,0,1,0,1,0,0,1,1,1,1,0,0,0,1,0,0,0,0,1,0,0,0,1,0,1,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+1,1,0,1,1,0,1,0,1,0,0,0,0,1,1,0,1,1,0,0,0,0,0,1,0,1,1,0,1,0,0,0,
+0,1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
+)
+
+Koi8rModel = {
+  'charToOrderMap': KOI8R_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "KOI8-R"
+}
+
+Win1251CyrillicModel = {
+  'charToOrderMap': win1251_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1251"
+}
+
+Latin5CyrillicModel = {
+  'charToOrderMap': latin5_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-5"
+}
+
+MacCyrillicModel = {
+  'charToOrderMap': macCyrillic_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "MacCyrillic"
+};
+
+Ibm866Model = {
+  'charToOrderMap': IBM866_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "IBM866"
+}
+
+Ibm855Model = {
+  'charToOrderMap': IBM855_CharToOrderMap,
+  'precedenceMatrix': RussianLangModel,
+  'mTypicalPositiveRatio': 0.976601,
+  'keepEnglishLetter': False,
+  'charsetName': "IBM855"
+}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py
new file mode 100644
index 0000000..ddb5837
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langgreekmodel.py
@@ -0,0 +1,225 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+Latin7_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 82,100,104, 94, 98,101,116,102,111,187,117, 92, 88,113, 85,  # 40
+ 79,118,105, 83, 67,114,119, 95, 99,109,188,253,253,253,253,253,  # 50
+253, 72, 70, 80, 81, 60, 96, 93, 89, 68,120, 97, 77, 86, 69, 55,  # 60
+ 78,115, 65, 66, 58, 76,106,103, 87,107,112,253,253,253,253,253,  # 70
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 80
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 90
+253,233, 90,253,253,253,253,253,253,253,253,253,253, 74,253,253,  # a0
+253,253,253,253,247,248, 61, 36, 46, 71, 73,253, 54,253,108,123,  # b0
+110, 31, 51, 43, 41, 34, 91, 40, 52, 47, 44, 53, 38, 49, 59, 39,  # c0
+ 35, 48,250, 37, 33, 45, 56, 50, 84, 57,120,121, 17, 18, 22, 15,  # d0
+124,  1, 29, 20, 21,  3, 32, 13, 25,  5, 11, 16, 10,  6, 30,  4,  # e0
+  9,  8, 14,  7,  2, 12, 28, 23, 42, 24, 64, 75, 19, 26, 27,253,  # f0
+)
+
+win1253_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 82,100,104, 94, 98,101,116,102,111,187,117, 92, 88,113, 85,  # 40
+ 79,118,105, 83, 67,114,119, 95, 99,109,188,253,253,253,253,253,  # 50
+253, 72, 70, 80, 81, 60, 96, 93, 89, 68,120, 97, 77, 86, 69, 55,  # 60
+ 78,115, 65, 66, 58, 76,106,103, 87,107,112,253,253,253,253,253,  # 70
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 80
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 90
+253,233, 61,253,253,253,253,253,253,253,253,253,253, 74,253,253,  # a0
+253,253,253,253,247,253,253, 36, 46, 71, 73,253, 54,253,108,123,  # b0
+110, 31, 51, 43, 41, 34, 91, 40, 52, 47, 44, 53, 38, 49, 59, 39,  # c0
+ 35, 48,250, 37, 33, 45, 56, 50, 84, 57,120,121, 17, 18, 22, 15,  # d0
+124,  1, 29, 20, 21,  3, 32, 13, 25,  5, 11, 16, 10,  6, 30,  4,  # e0
+  9,  8, 14,  7,  2, 12, 28, 23, 42, 24, 64, 75, 19, 26, 27,253,  # f0
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 98.2851%
+# first 1024 sequences:1.7001%
+# rest  sequences:     0.0359%
+# negative sequences:  0.0148%
+GreekLangModel = (
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,2,2,3,3,3,3,3,3,3,3,1,3,3,3,0,2,2,3,3,0,3,0,3,2,0,3,3,3,0,
+3,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,0,3,3,0,3,2,3,3,0,3,2,3,3,3,0,0,3,0,3,0,3,3,2,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,
+0,2,3,2,2,3,3,3,3,3,3,3,3,0,3,3,3,3,0,2,3,3,0,3,3,3,3,2,3,3,3,0,
+2,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,0,2,1,3,3,3,3,2,3,3,2,3,3,2,0,
+0,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,0,3,3,3,3,3,3,0,3,3,0,3,3,3,3,3,3,3,3,3,3,0,3,2,3,3,0,
+2,0,1,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,2,3,0,0,0,0,3,3,0,3,1,3,3,3,0,3,3,0,3,3,3,3,0,0,0,0,
+2,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,0,3,0,3,3,3,3,3,0,3,2,2,2,3,0,2,3,3,3,3,3,2,3,3,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,3,2,2,2,3,3,3,3,0,3,1,3,3,3,3,2,3,3,3,3,3,3,3,2,2,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,2,0,3,0,0,0,3,3,2,3,3,3,3,3,0,0,3,2,3,0,2,3,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,3,3,3,3,0,0,3,3,0,2,3,0,3,0,3,3,3,0,0,3,0,3,0,2,2,3,3,0,0,
+0,0,1,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,2,0,3,2,3,3,3,3,0,3,3,3,3,3,0,3,3,2,3,2,3,3,2,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,2,3,2,3,3,3,3,3,3,0,2,3,2,3,2,2,2,3,2,3,3,2,3,0,2,2,2,3,0,
+2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,0,0,0,3,3,3,2,3,3,0,0,3,0,3,0,0,0,3,2,0,3,0,3,0,0,2,0,2,0,
+0,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,0,3,3,3,3,3,3,0,3,3,0,3,0,0,0,3,3,0,3,3,3,0,0,1,2,3,0,
+3,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,2,0,0,3,2,2,3,3,0,3,3,3,3,3,2,1,3,0,3,2,3,3,2,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,3,0,2,3,3,3,3,3,3,0,0,3,0,3,0,0,0,3,3,0,3,2,3,0,0,3,3,3,0,
+3,0,0,0,2,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,0,3,3,3,3,3,3,0,0,3,0,3,0,0,0,3,2,0,3,2,3,0,0,3,2,3,0,
+2,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,1,2,2,3,3,3,3,3,3,0,2,3,0,3,0,0,0,3,3,0,3,0,2,0,0,2,3,1,0,
+2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,3,3,3,3,0,3,0,3,3,2,3,0,3,3,3,3,3,3,0,3,3,3,0,2,3,0,0,3,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,3,3,3,0,0,3,0,0,0,3,3,0,3,0,2,3,3,0,0,3,0,3,0,3,3,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,0,0,0,3,3,3,3,3,3,0,0,3,0,2,0,0,0,3,3,0,3,0,3,0,0,2,0,2,0,
+0,0,0,0,1,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,3,0,3,0,2,0,3,2,0,3,2,3,2,3,0,0,3,2,3,2,3,3,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,0,0,2,3,3,3,3,3,0,0,0,3,0,2,1,0,0,3,2,2,2,0,3,0,0,2,2,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,3,3,3,2,0,3,0,3,0,3,3,0,2,1,2,3,3,0,0,3,0,3,0,3,3,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,3,3,3,0,3,3,3,3,3,3,0,2,3,0,3,0,0,0,2,1,0,2,2,3,0,0,2,2,2,0,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,3,0,0,2,3,3,3,2,3,0,0,1,3,0,2,0,0,0,0,3,0,1,0,2,0,0,1,1,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,3,1,0,3,0,0,0,3,2,0,3,2,3,3,3,0,0,3,0,3,2,2,2,1,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,3,3,3,0,0,3,0,0,0,0,2,0,2,3,3,2,2,2,2,3,0,2,0,2,2,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,3,3,3,2,0,0,0,0,0,0,2,3,0,2,0,2,3,2,0,0,3,0,3,0,3,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,3,2,3,3,2,2,3,0,2,0,3,0,0,0,2,0,0,0,0,1,2,0,2,0,2,0,
+0,2,0,2,0,2,2,0,0,1,0,2,2,2,0,2,2,2,0,2,2,2,0,0,2,0,0,1,0,0,0,0,
+0,2,0,3,3,2,0,0,0,0,0,0,1,3,0,2,0,2,2,2,0,0,2,0,3,0,0,2,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,3,0,2,3,2,0,2,2,0,2,0,2,2,0,2,0,2,2,2,0,0,0,0,0,0,2,3,0,0,0,2,
+0,1,2,0,0,0,0,2,2,0,0,0,2,1,0,2,2,0,0,0,0,0,0,1,0,2,0,0,0,0,0,0,
+0,0,2,1,0,2,3,2,2,3,2,3,2,0,0,3,3,3,0,0,3,2,0,0,0,1,1,0,2,0,2,2,
+0,2,0,2,0,2,2,0,0,2,0,2,2,2,0,2,2,2,2,0,0,2,0,0,0,2,0,1,0,0,0,0,
+0,3,0,3,3,2,2,0,3,0,0,0,2,2,0,2,2,2,1,2,0,0,1,2,2,0,0,3,0,0,0,2,
+0,1,2,0,0,0,1,2,0,0,0,0,0,0,0,2,2,0,1,0,0,2,0,0,0,2,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,3,3,2,2,0,0,0,2,0,2,3,3,0,2,0,0,0,0,0,0,2,2,2,0,2,2,0,2,0,2,
+0,2,2,0,0,2,2,2,2,1,0,0,2,2,0,2,0,0,2,0,0,0,0,0,0,2,0,0,0,0,0,0,
+0,2,0,3,2,3,0,0,0,3,0,0,2,2,0,2,0,2,2,2,0,0,2,0,0,0,0,0,0,0,0,2,
+0,0,2,2,0,0,2,2,2,0,0,0,0,0,0,2,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,2,0,0,3,2,0,2,2,2,2,2,0,0,0,2,0,0,0,0,2,0,1,0,0,2,0,1,0,0,0,
+0,2,2,2,0,2,2,0,1,2,0,2,2,2,0,2,2,2,2,1,2,2,0,0,2,0,0,0,0,0,0,0,
+0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+0,2,0,2,0,2,2,0,0,0,0,1,2,1,0,0,2,2,0,0,2,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,3,2,3,0,0,2,0,0,0,2,2,0,2,0,0,0,1,0,0,2,0,2,0,2,2,0,0,0,0,
+0,0,2,0,0,0,0,2,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,
+0,2,2,3,2,2,0,0,0,0,0,0,1,3,0,2,0,2,2,0,0,0,1,0,2,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,0,2,0,3,2,0,2,0,0,0,0,0,0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+0,0,2,0,0,0,0,1,1,0,0,2,1,2,0,2,2,0,1,0,0,1,0,0,0,2,0,0,0,0,0,0,
+0,3,0,2,2,2,0,0,2,0,0,0,2,0,0,0,2,3,0,2,0,0,0,0,0,0,2,2,0,0,0,2,
+0,1,2,0,0,0,1,2,2,1,0,0,0,2,0,0,2,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,1,2,0,2,2,0,2,0,0,2,0,0,0,0,1,2,1,0,2,1,0,0,0,0,0,0,0,0,0,0,
+0,0,2,0,0,0,3,1,2,2,0,2,0,0,0,0,2,0,0,0,2,0,0,3,0,0,0,0,2,2,2,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,1,0,2,0,1,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0,2,
+0,2,2,0,0,2,2,2,2,2,0,1,2,0,0,0,2,2,0,1,0,2,0,0,2,2,0,0,0,0,0,0,
+0,0,0,0,1,0,0,0,0,0,0,0,3,0,0,2,0,0,0,0,0,0,0,0,2,0,2,0,0,0,0,2,
+0,1,2,0,0,0,0,2,2,1,0,1,0,1,0,2,2,2,1,0,0,0,0,0,0,1,0,0,0,0,0,0,
+0,2,0,1,2,0,0,0,0,0,0,0,0,0,0,2,0,0,2,2,0,0,0,0,1,0,0,0,0,0,0,2,
+0,2,2,0,0,0,0,2,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,2,0,0,0,
+0,2,2,2,2,0,0,0,3,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,2,0,0,0,0,0,0,1,
+0,0,2,0,0,0,0,1,2,0,0,0,0,0,0,2,2,1,1,0,0,0,0,0,0,1,0,0,0,0,0,0,
+0,2,0,2,2,2,0,0,2,0,0,0,0,0,0,0,2,2,2,0,0,0,2,0,0,0,0,0,0,0,0,2,
+0,0,1,0,0,0,0,2,1,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
+0,3,0,2,0,0,0,0,0,0,0,0,2,0,0,0,0,0,2,0,0,0,0,0,0,0,2,0,0,0,0,2,
+0,0,2,0,0,0,0,2,2,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,2,0,2,2,1,0,0,0,0,0,0,2,0,0,2,0,2,2,2,0,0,0,0,0,0,2,0,0,0,0,2,
+0,0,2,0,0,2,0,2,2,0,0,0,0,2,0,2,0,0,0,0,0,2,0,0,0,2,0,0,0,0,0,0,
+0,0,3,0,0,0,2,2,0,2,2,0,0,0,0,0,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,2,0,0,0,0,0,
+0,2,2,2,2,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,1,
+0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,2,2,0,0,0,0,0,2,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+0,2,0,0,0,2,0,0,0,0,0,1,0,0,0,0,2,2,0,0,0,1,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,2,0,0,0,
+0,2,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,2,0,2,0,0,0,
+0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,2,0,0,0,1,2,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+)
+
+Latin7GreekModel = {
+  'charToOrderMap': Latin7_CharToOrderMap,
+  'precedenceMatrix': GreekLangModel,
+  'mTypicalPositiveRatio': 0.982851,
+  'keepEnglishLetter': False,
+  'charsetName': "ISO-8859-7"
+}
+
+Win1253GreekModel = {
+  'charToOrderMap': win1253_CharToOrderMap,
+  'precedenceMatrix': GreekLangModel,
+  'mTypicalPositiveRatio': 0.982851,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1253"
+}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py
new file mode 100644
index 0000000..75f2bc7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhebrewmodel.py
@@ -0,0 +1,201 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+#          Simon Montagu
+# Portions created by the Initial Developer are Copyright (C) 2005
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Shoshannah Forbes - original C code (?)
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Windows-1255 language model
+# Character Mapping Table:
+win1255_CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 69, 91, 79, 80, 92, 89, 97, 90, 68,111,112, 82, 73, 95, 85,  # 40
+ 78,121, 86, 71, 67,102,107, 84,114,103,115,253,253,253,253,253,  # 50
+253, 50, 74, 60, 61, 42, 76, 70, 64, 53,105, 93, 56, 65, 54, 49,  # 60
+ 66,110, 51, 43, 44, 63, 81, 77, 98, 75,108,253,253,253,253,253,  # 70
+124,202,203,204,205, 40, 58,206,207,208,209,210,211,212,213,214,
+215, 83, 52, 47, 46, 72, 32, 94,216,113,217,109,218,219,220,221,
+ 34,116,222,118,100,223,224,117,119,104,125,225,226, 87, 99,227,
+106,122,123,228, 55,229,230,101,231,232,120,233, 48, 39, 57,234,
+ 30, 59, 41, 88, 33, 37, 36, 31, 29, 35,235, 62, 28,236,126,237,
+238, 38, 45,239,240,241,242,243,127,244,245,246,247,248,249,250,
+  9,  8, 20, 16,  3,  2, 24, 14, 22,  1, 25, 15,  4, 11,  6, 23,
+ 12, 19, 13, 26, 18, 27, 21, 17,  7, 10,  5,251,252,128, 96,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 98.4004%
+# first 1024 sequences: 1.5981%
+# rest  sequences:      0.087%
+# negative sequences:   0.0015%
+HebrewLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,2,3,2,1,2,0,1,0,0,
+3,0,3,1,0,0,1,3,2,0,1,1,2,0,2,2,2,1,1,1,1,2,1,1,1,2,0,0,2,2,0,1,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,2,
+1,2,1,2,1,2,0,0,2,0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,2,2,
+1,2,1,3,1,1,0,0,2,0,0,0,1,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,0,1,2,2,1,3,
+1,2,1,1,2,2,0,0,2,2,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,1,0,1,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,2,2,2,2,3,2,
+1,2,1,2,2,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,2,3,2,2,3,2,2,2,1,2,2,2,2,
+1,2,1,1,2,2,0,1,2,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,0,2,2,2,2,2,
+0,2,0,2,2,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,0,2,2,2,
+0,2,1,2,2,2,0,0,2,1,0,0,0,0,1,0,1,0,0,0,0,0,0,2,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,2,1,2,3,2,2,2,
+1,2,1,2,2,2,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,1,0,
+3,3,3,3,3,3,3,3,3,2,3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,3,3,1,0,2,0,2,
+0,2,1,2,2,2,0,0,1,2,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,2,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,2,3,2,2,3,2,1,2,1,1,1,
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+3,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,
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+3,2,1,1,1,1,2,1,1,2,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,0,0,0,0,0,
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+2,1,1,2,2,2,2,2,2,2,2,2,2,2,1,2,2,2,2,2,1,2,1,2,1,1,1,1,0,0,0,0,
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+1,2,1,2,2,2,2,2,2,2,2,2,2,1,2,1,2,1,1,2,1,1,1,2,1,2,1,2,0,1,0,1,
+0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+2,1,2,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,2,2,
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+0,0,0,0,0,0,0,0,2,0,1,1,1,0,1,0,0,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,
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+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,1,0,0,0,0,0,1,0,1,2,2,0,1,0,0,1,1,2,2,1,2,0,2,0,0,0,1,2,0,1,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,2,0,2,1,2,0,2,0,0,1,1,1,1,1,1,0,1,0,0,0,1,0,0,1,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,0,0,0,0,0,1,0,2,1,1,0,1,0,0,1,1,1,2,2,0,0,1,0,0,0,1,0,0,1,
+1,1,2,1,0,1,1,1,0,1,0,1,1,1,1,0,0,0,1,0,1,0,0,0,0,0,0,0,0,2,2,1,
+0,2,0,1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,1,0,0,1,0,1,1,1,1,0,0,0,0,0,1,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,1,1,1,1,1,1,1,2,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,1,1,1,0,1,1,0,1,0,0,0,1,1,0,1,
+2,0,1,0,1,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+2,2,1,1,1,0,1,1,0,1,1,0,1,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,
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+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+0,1,0,0,2,0,2,1,1,0,1,0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,1,0,
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+1,0,0,1,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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+1,0,0,0,0,0,0,0,1,0,1,1,0,0,1,0,0,2,1,1,1,1,1,0,1,0,0,0,0,1,0,1,
+0,1,1,1,2,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,1,2,1,0,0,0,0,0,1,1,1,1,1,0,1,0,0,0,1,1,0,0,
+)
+
+Win1255HebrewModel = {
+  'charToOrderMap': win1255_CharToOrderMap,
+  'precedenceMatrix': HebrewLangModel,
+  'mTypicalPositiveRatio': 0.984004,
+  'keepEnglishLetter': False,
+  'charsetName': "windows-1255"
+}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py
new file mode 100644
index 0000000..49d2f0f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langhungarianmodel.py
@@ -0,0 +1,225 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# Character Mapping Table:
+Latin2_HungarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 28, 40, 54, 45, 32, 50, 49, 38, 39, 53, 36, 41, 34, 35, 47,
+ 46, 71, 43, 33, 37, 57, 48, 64, 68, 55, 52,253,253,253,253,253,
+253,  2, 18, 26, 17,  1, 27, 12, 20,  9, 22,  7,  6, 13,  4,  8,
+ 23, 67, 10,  5,  3, 21, 19, 65, 62, 16, 11,253,253,253,253,253,
+159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,
+175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,
+191,192,193,194,195,196,197, 75,198,199,200,201,202,203,204,205,
+ 79,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,
+221, 51, 81,222, 78,223,224,225,226, 44,227,228,229, 61,230,231,
+232,233,234, 58,235, 66, 59,236,237,238, 60, 69, 63,239,240,241,
+ 82, 14, 74,242, 70, 80,243, 72,244, 15, 83, 77, 84, 30, 76, 85,
+245,246,247, 25, 73, 42, 24,248,249,250, 31, 56, 29,251,252,253,
+)
+
+win1250HungarianCharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253, 28, 40, 54, 45, 32, 50, 49, 38, 39, 53, 36, 41, 34, 35, 47,
+ 46, 72, 43, 33, 37, 57, 48, 64, 68, 55, 52,253,253,253,253,253,
+253,  2, 18, 26, 17,  1, 27, 12, 20,  9, 22,  7,  6, 13,  4,  8,
+ 23, 67, 10,  5,  3, 21, 19, 65, 62, 16, 11,253,253,253,253,253,
+161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,
+177,178,179,180, 78,181, 69,182,183,184,185,186,187,188,189,190,
+191,192,193,194,195,196,197, 76,198,199,200,201,202,203,204,205,
+ 81,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,
+221, 51, 83,222, 80,223,224,225,226, 44,227,228,229, 61,230,231,
+232,233,234, 58,235, 66, 59,236,237,238, 60, 70, 63,239,240,241,
+ 84, 14, 75,242, 71, 82,243, 73,244, 15, 85, 79, 86, 30, 77, 87,
+245,246,247, 25, 74, 42, 24,248,249,250, 31, 56, 29,251,252,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 94.7368%
+# first 1024 sequences:5.2623%
+# rest  sequences:     0.8894%
+# negative sequences:  0.0009%
+HungarianLangModel = (
+0,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
+3,3,3,3,3,3,3,3,3,3,2,3,3,3,3,3,3,3,3,2,2,3,3,1,1,2,2,2,2,2,1,2,
+3,2,2,3,3,3,3,3,2,3,3,3,3,3,3,1,2,3,3,3,3,2,3,3,1,1,3,3,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,
+3,2,1,3,3,3,3,3,2,3,3,3,3,3,1,1,2,3,3,3,3,3,3,3,1,1,3,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,1,1,2,3,3,3,1,3,3,3,3,3,1,3,3,2,2,0,3,2,3,
+0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,3,3,3,2,3,3,2,3,3,3,3,3,2,3,3,2,2,3,2,3,2,0,3,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,3,3,3,3,2,3,3,3,1,2,3,2,2,3,1,2,3,3,2,2,0,3,3,3,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,3,2,3,3,3,3,2,3,3,3,3,0,2,3,2,
+0,0,0,1,1,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,3,3,3,1,1,1,3,3,2,1,3,2,2,3,2,1,3,2,2,1,0,3,3,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,2,2,3,3,3,3,3,1,2,3,3,3,3,1,2,1,3,3,3,3,2,2,3,1,1,3,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,2,2,3,3,3,3,3,2,1,3,3,3,3,3,2,2,1,3,3,3,0,1,1,2,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,
+3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,3,2,3,3,2,3,3,3,2,0,3,2,3,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,1,0,
+3,3,3,3,3,3,2,3,3,3,2,3,2,3,3,3,1,3,2,2,2,3,1,1,3,3,1,1,0,3,3,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,2,3,3,3,2,3,2,3,3,3,2,3,3,3,3,3,1,2,3,2,2,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,2,2,3,1,3,3,2,2,1,3,3,3,1,1,3,1,2,3,2,3,2,2,2,1,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,1,1,3,3,3,3,3,1,2,3,3,3,3,1,2,1,3,3,3,2,2,3,2,1,0,3,2,0,1,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,3,3,3,3,3,1,2,3,3,3,3,1,1,0,3,3,3,3,0,2,3,0,0,2,1,0,1,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,2,2,3,3,2,2,2,2,3,3,0,1,2,3,2,3,2,2,3,2,1,2,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,
+3,3,3,3,3,3,1,2,3,3,3,2,1,2,3,3,2,2,2,3,2,3,3,1,3,3,1,1,0,2,3,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,1,2,2,2,2,3,3,3,1,1,1,3,3,1,1,3,1,1,3,2,1,2,3,1,1,0,2,2,2,
+0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,1,2,1,1,3,3,1,1,1,1,3,3,1,1,2,2,1,2,1,1,2,2,1,1,0,2,2,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,1,1,2,1,1,3,3,1,0,1,1,3,3,2,0,1,1,2,3,1,0,2,2,1,0,0,1,3,2,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,2,1,3,3,3,3,3,1,2,3,2,3,3,2,1,1,3,2,3,2,1,2,2,0,1,2,1,0,0,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,3,3,2,2,2,2,3,1,2,2,1,1,3,3,0,3,2,1,2,3,2,1,3,3,1,1,0,2,1,3,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,3,3,2,2,2,3,2,3,3,3,2,1,1,3,3,1,1,1,2,2,3,2,3,2,2,2,1,0,2,2,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+1,0,0,3,3,3,3,3,0,0,3,3,2,3,0,0,0,2,3,3,1,0,1,2,0,0,1,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,2,3,3,3,3,3,1,2,3,3,2,2,1,1,0,3,3,2,2,1,2,2,1,0,2,2,0,1,1,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,2,1,3,1,2,3,3,2,2,1,1,2,2,1,1,1,1,3,2,1,1,1,1,2,1,0,1,2,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
+2,3,3,1,1,1,1,1,3,3,3,0,1,1,3,3,1,1,1,1,1,2,2,0,3,1,1,2,0,2,1,1,
+0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
+3,1,0,1,2,1,2,2,0,1,2,3,1,2,0,0,0,2,1,1,1,1,1,2,0,0,1,1,0,0,0,0,
+1,2,1,2,2,2,1,2,1,2,0,2,0,2,2,1,1,2,1,1,2,1,1,1,0,1,0,0,0,1,1,0,
+1,1,1,2,3,2,3,3,0,1,2,2,3,1,0,1,0,2,1,2,2,0,1,1,0,0,1,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,3,3,2,2,1,0,0,3,2,3,2,0,0,0,1,1,3,0,0,1,1,0,0,2,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,2,2,3,3,1,0,1,3,2,3,1,1,1,0,1,1,1,1,1,3,1,0,0,2,2,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,1,1,2,2,2,1,0,1,2,3,3,2,0,0,0,2,1,1,1,2,1,1,1,0,1,1,1,0,0,0,
+1,2,2,2,2,2,1,1,1,2,0,2,1,1,1,1,1,2,1,1,1,1,1,1,0,1,1,1,0,0,1,1,
+3,2,2,1,0,0,1,1,2,2,0,3,0,1,2,1,1,0,0,1,1,1,0,1,1,1,1,0,2,1,1,1,
+2,2,1,1,1,2,1,2,1,1,1,1,1,1,1,2,1,1,1,2,3,1,1,1,1,1,1,1,1,1,0,1,
+2,3,3,0,1,0,0,0,3,3,1,0,0,1,2,2,1,0,0,0,0,2,0,0,1,1,1,0,2,1,1,1,
+2,1,1,1,1,1,1,2,1,1,0,1,1,0,1,1,1,0,1,2,1,1,0,1,1,1,1,1,1,1,0,1,
+2,3,3,0,1,0,0,0,2,2,0,0,0,0,1,2,2,0,0,0,0,1,0,0,1,1,0,0,2,0,1,0,
+2,1,1,1,1,2,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,2,0,1,1,1,1,1,0,1,
+3,2,2,0,1,0,1,0,2,3,2,0,0,1,2,2,1,0,0,1,1,1,0,0,2,1,0,1,2,2,1,1,
+2,1,1,1,1,1,1,2,1,1,1,1,1,1,0,2,1,0,1,1,0,1,1,1,0,1,1,2,1,1,0,1,
+2,2,2,0,0,1,0,0,2,2,1,1,0,0,2,1,1,0,0,0,1,2,0,0,2,1,0,0,2,1,1,1,
+2,1,1,1,1,2,1,2,1,1,1,2,2,1,1,2,1,1,1,2,1,1,1,1,1,1,1,1,1,1,0,1,
+1,2,3,0,0,0,1,0,3,2,1,0,0,1,2,1,1,0,0,0,0,2,1,0,1,1,0,0,2,1,2,1,
+1,1,0,0,0,1,0,1,1,1,1,1,2,0,0,1,0,0,0,2,0,0,1,1,1,1,1,1,1,1,0,1,
+3,0,0,2,1,2,2,1,0,0,2,1,2,2,0,0,0,2,1,1,1,0,1,1,0,0,1,1,2,0,0,0,
+1,2,1,2,2,1,1,2,1,2,0,1,1,1,1,1,1,1,1,1,2,1,1,0,0,1,1,1,1,0,0,1,
+1,3,2,0,0,0,1,0,2,2,2,0,0,0,2,2,1,0,0,0,0,3,1,1,1,1,0,0,2,1,1,1,
+2,1,0,1,1,1,0,1,1,1,1,1,1,1,0,2,1,0,0,1,0,1,1,0,1,1,1,1,1,1,0,1,
+2,3,2,0,0,0,1,0,2,2,0,0,0,0,2,1,1,0,0,0,0,2,1,0,1,1,0,0,2,1,1,0,
+2,1,1,1,1,2,1,2,1,2,0,1,1,1,0,2,1,1,1,2,1,1,1,1,0,1,1,1,1,1,0,1,
+3,1,1,2,2,2,3,2,1,1,2,2,1,1,0,1,0,2,2,1,1,1,1,1,0,0,1,1,0,1,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,0,0,0,0,0,2,2,0,0,0,0,2,2,1,0,0,0,1,1,0,0,1,2,0,0,2,1,1,1,
+2,2,1,1,1,2,1,2,1,1,0,1,1,1,1,2,1,1,1,2,1,1,1,1,0,1,2,1,1,1,0,1,
+1,0,0,1,2,3,2,1,0,0,2,0,1,1,0,0,0,1,1,1,1,0,1,1,0,0,1,0,0,0,0,0,
+1,2,1,2,1,2,1,1,1,2,0,2,1,1,1,0,1,2,0,0,1,1,1,0,0,0,0,0,0,0,0,0,
+2,3,2,0,0,0,0,0,1,1,2,1,0,0,1,1,1,0,0,0,0,2,0,0,1,1,0,0,2,1,1,1,
+2,1,1,1,1,1,1,2,1,0,1,1,1,1,0,2,1,1,1,1,1,1,0,1,0,1,1,1,1,1,0,1,
+1,2,2,0,1,1,1,0,2,2,2,0,0,0,3,2,1,0,0,0,1,1,0,0,1,1,0,1,1,1,0,0,
+1,1,0,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,2,1,1,1,0,0,1,1,1,0,1,0,1,
+2,1,0,2,1,1,2,2,1,1,2,1,1,1,0,0,0,1,1,0,1,1,1,1,0,0,1,1,1,0,0,0,
+1,2,2,2,2,2,1,1,1,2,0,2,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,0,0,0,1,0,
+1,2,3,0,0,0,1,0,2,2,0,0,0,0,2,2,0,0,0,0,0,1,0,0,1,0,0,0,2,0,1,0,
+2,1,1,1,1,1,0,2,0,0,0,1,2,1,1,1,1,0,1,2,0,1,0,1,0,1,1,1,0,1,0,1,
+2,2,2,0,0,0,1,0,2,1,2,0,0,0,1,1,2,0,0,0,0,1,0,0,1,1,0,0,2,1,0,1,
+2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,0,1,1,1,1,1,0,1,
+1,2,2,0,0,0,1,0,2,2,2,0,0,0,1,1,0,0,0,0,0,1,1,0,2,0,0,1,1,1,0,1,
+1,0,1,1,1,1,1,1,0,1,1,1,1,0,0,1,0,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,
+1,0,0,1,0,1,2,1,0,0,1,1,1,2,0,0,0,1,1,0,1,0,1,1,0,0,1,0,0,0,0,0,
+0,2,1,2,1,1,1,1,1,2,0,2,0,1,1,0,1,2,1,0,1,1,1,0,0,0,0,0,0,1,0,0,
+2,1,1,0,1,2,0,0,1,1,1,0,0,0,1,1,0,0,0,0,0,1,0,0,1,0,0,0,2,1,0,1,
+2,2,1,1,1,1,1,2,1,1,0,1,1,1,1,2,1,1,1,2,1,1,0,1,0,1,1,1,1,1,0,1,
+1,2,2,0,0,0,0,0,1,1,0,0,0,0,2,1,0,0,0,0,0,2,0,0,2,2,0,0,2,0,0,1,
+2,1,1,1,1,1,1,1,0,1,1,0,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,1,0,0,1,
+1,1,2,0,0,3,1,0,2,1,1,1,0,0,1,1,1,0,0,0,1,1,0,0,0,1,0,0,1,0,1,0,
+1,2,1,0,1,1,1,2,1,1,0,1,1,1,1,1,0,0,0,1,1,1,1,1,0,1,0,0,0,1,0,0,
+2,1,1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,0,1,0,0,0,1,0,0,0,0,2,0,0,0,
+2,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,2,1,1,0,0,1,1,1,1,1,0,1,
+2,1,1,1,2,1,1,1,0,1,1,2,1,0,0,0,0,1,1,1,1,0,1,0,0,0,0,1,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,0,1,1,1,1,1,0,0,1,1,2,1,0,0,0,1,1,0,0,0,1,1,0,0,1,0,1,0,0,0,
+1,2,1,1,1,1,1,1,1,1,0,1,0,1,1,1,1,1,1,0,1,1,1,0,0,0,0,0,0,1,0,0,
+2,0,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,1,1,2,0,0,1,0,0,1,0,1,0,0,0,
+0,1,1,1,1,1,1,1,1,2,0,1,1,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,1,0,0,2,1,0,1,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,
+0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,0,1,1,0,0,1,1,1,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+0,1,1,1,1,1,0,0,1,1,0,1,0,1,0,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+0,0,0,1,0,0,0,0,0,0,1,1,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,1,1,0,1,0,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,
+2,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,0,1,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,0,1,1,1,1,0,0,0,1,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,1,1,1,1,1,0,1,1,0,1,0,1,0,0,1,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,
+)
+
+Latin2HungarianModel = {
+  'charToOrderMap': Latin2_HungarianCharToOrderMap,
+  'precedenceMatrix': HungarianLangModel,
+  'mTypicalPositiveRatio': 0.947368,
+  'keepEnglishLetter': True,
+  'charsetName': "ISO-8859-2"
+}
+
+Win1250HungarianModel = {
+  'charToOrderMap': win1250HungarianCharToOrderMap,
+  'precedenceMatrix': HungarianLangModel,
+  'mTypicalPositiveRatio': 0.947368,
+  'keepEnglishLetter': True,
+  'charsetName': "windows-1250"
+}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py
new file mode 100644
index 0000000..0508b1b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/langthaimodel.py
@@ -0,0 +1,200 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Communicator client code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+# 255: Control characters that usually does not exist in any text
+# 254: Carriage/Return
+# 253: symbol (punctuation) that does not belong to word
+# 252: 0 - 9
+
+# The following result for thai was collected from a limited sample (1M).
+
+# Character Mapping Table:
+TIS620CharToOrderMap = (
+255,255,255,255,255,255,255,255,255,255,254,255,255,254,255,255,  # 00
+255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  # 10
+253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,253,  # 20
+252,252,252,252,252,252,252,252,252,252,253,253,253,253,253,253,  # 30
+253,182,106,107,100,183,184,185,101, 94,186,187,108,109,110,111,  # 40
+188,189,190, 89, 95,112,113,191,192,193,194,253,253,253,253,253,  # 50
+253, 64, 72, 73,114, 74,115,116,102, 81,201,117, 90,103, 78, 82,  # 60
+ 96,202, 91, 79, 84,104,105, 97, 98, 92,203,253,253,253,253,253,  # 70
+209,210,211,212,213, 88,214,215,216,217,218,219,220,118,221,222,
+223,224, 99, 85, 83,225,226,227,228,229,230,231,232,233,234,235,
+236,  5, 30,237, 24,238, 75,  8, 26, 52, 34, 51,119, 47, 58, 57,
+ 49, 53, 55, 43, 20, 19, 44, 14, 48,  3, 17, 25, 39, 62, 31, 54,
+ 45,  9, 16,  2, 61, 15,239, 12, 42, 46, 18, 21, 76,  4, 66, 63,
+ 22, 10,  1, 36, 23, 13, 40, 27, 32, 35, 86,240,241,242,243,244,
+ 11, 28, 41, 29, 33,245, 50, 37,  6,  7, 67, 77, 38, 93,246,247,
+ 68, 56, 59, 65, 69, 60, 70, 80, 71, 87,248,249,250,251,252,253,
+)
+
+# Model Table:
+# total sequences: 100%
+# first 512 sequences: 92.6386%
+# first 1024 sequences:7.3177%
+# rest  sequences:     1.0230%
+# negative sequences:  0.0436%
+ThaiLangModel = (
+0,1,3,3,3,3,0,0,3,3,0,3,3,0,3,3,3,3,3,3,3,3,0,0,3,3,3,0,3,3,3,3,
+0,3,3,0,0,0,1,3,0,3,3,2,3,3,0,1,2,3,3,3,3,0,2,0,2,0,0,3,2,1,2,2,
+3,0,3,3,2,3,0,0,3,3,0,3,3,0,3,3,3,3,3,3,3,3,3,0,3,2,3,0,2,2,2,3,
+0,2,3,0,0,0,0,1,0,1,2,3,1,1,3,2,2,0,1,1,0,0,1,0,0,0,0,0,0,0,1,1,
+3,3,3,2,3,3,3,3,3,3,3,3,3,3,3,2,2,2,2,2,2,2,3,3,2,3,2,3,3,2,2,2,
+3,1,2,3,0,3,3,2,2,1,2,3,3,1,2,0,1,3,0,1,0,0,1,0,0,0,0,0,0,0,1,1,
+3,3,2,2,3,3,3,3,1,2,3,3,3,3,3,2,2,2,2,3,3,2,2,3,3,2,2,3,2,3,2,2,
+3,3,1,2,3,1,2,2,3,3,1,0,2,1,0,0,3,1,2,1,0,0,1,0,0,0,0,0,0,1,0,1,
+3,3,3,3,3,3,2,2,3,3,3,3,2,3,2,2,3,3,2,2,3,2,2,2,2,1,1,3,1,2,1,1,
+3,2,1,0,2,1,0,1,0,1,1,0,1,1,0,0,1,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,3,2,3,2,3,3,2,2,3,2,3,3,2,3,1,1,2,3,2,2,2,3,2,2,2,2,2,1,2,1,
+2,2,1,1,3,3,2,1,0,1,2,2,0,1,3,0,0,0,1,1,0,0,0,0,0,2,3,0,0,2,1,1,
+3,3,2,3,3,2,0,0,3,3,0,3,3,0,2,2,3,1,2,2,1,1,1,0,2,2,2,0,2,2,1,1,
+0,2,1,0,2,0,0,2,0,1,0,0,1,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1,0,
+3,3,2,3,3,2,0,0,3,3,0,2,3,0,2,1,2,2,2,2,1,2,0,0,2,2,2,0,2,2,1,1,
+0,2,1,0,2,0,0,2,0,1,1,0,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,
+3,3,2,3,2,3,2,0,2,2,1,3,2,1,3,2,1,2,3,2,2,3,0,2,3,2,2,1,2,2,2,2,
+1,2,2,0,0,0,0,2,0,1,2,0,1,1,1,0,1,0,3,1,1,0,0,0,0,0,0,0,0,0,1,0,
+3,3,2,3,3,2,3,2,2,2,3,2,2,3,2,2,1,2,3,2,2,3,1,3,2,2,2,3,2,2,2,3,
+3,2,1,3,0,1,1,1,0,2,1,1,1,1,1,0,1,0,1,1,0,0,0,0,0,0,0,0,0,2,0,0,
+1,0,0,3,0,3,3,3,3,3,0,0,3,0,2,2,3,3,3,3,3,0,0,0,1,1,3,0,0,0,0,2,
+0,0,1,0,0,0,0,0,0,0,2,3,0,0,0,3,0,2,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+2,0,3,3,3,3,0,0,2,3,0,0,3,0,3,3,2,3,3,3,3,3,0,0,3,3,3,0,0,0,3,3,
+0,0,3,0,0,0,0,2,0,0,2,1,1,3,0,0,1,0,0,2,3,0,1,0,0,0,0,0,0,0,1,0,
+3,3,3,3,2,3,3,3,3,3,3,3,1,2,1,3,3,2,2,1,2,2,2,3,1,1,2,0,2,1,2,1,
+2,2,1,0,0,0,1,1,0,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,
+3,0,2,1,2,3,3,3,0,2,0,2,2,0,2,1,3,2,2,1,2,1,0,0,2,2,1,0,2,1,2,2,
+0,1,1,0,0,0,0,1,0,1,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,1,3,3,1,1,3,0,2,3,1,1,3,2,1,1,2,0,2,2,3,2,1,1,1,1,1,2,
+3,0,0,1,3,1,2,1,2,0,3,0,0,0,1,0,3,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,
+3,3,1,1,3,2,3,3,3,1,3,2,1,3,2,1,3,2,2,2,2,1,3,3,1,2,1,3,1,2,3,0,
+2,1,1,3,2,2,2,1,2,1,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,
+3,3,2,3,2,3,3,2,3,2,3,2,3,3,2,1,0,3,2,2,2,1,2,2,2,1,2,2,1,2,1,1,
+2,2,2,3,0,1,3,1,1,1,1,0,1,1,0,2,1,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,3,2,2,1,1,3,2,3,2,3,2,0,3,2,2,1,2,0,2,2,2,1,2,2,2,2,1,
+3,2,1,2,2,1,0,2,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,1,
+3,3,3,3,3,2,3,1,2,3,3,2,2,3,0,1,1,2,0,3,3,2,2,3,0,1,1,3,0,0,0,0,
+3,1,0,3,3,0,2,0,2,1,0,0,3,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,2,3,2,3,3,0,1,3,1,1,2,1,2,1,1,3,1,1,0,2,3,1,1,1,1,1,1,1,1,
+3,1,1,2,2,2,2,1,1,1,0,0,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,2,2,1,1,2,1,3,3,2,3,2,2,3,2,2,3,1,2,2,1,2,0,3,2,1,2,2,2,2,2,1,
+3,2,1,2,2,2,1,1,1,1,0,0,1,1,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,3,3,3,3,1,3,3,0,2,1,0,3,2,0,0,3,1,0,1,1,0,1,0,0,0,0,0,1,
+1,0,0,1,0,3,2,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,2,2,2,3,0,0,1,3,0,3,2,0,3,2,2,3,3,3,3,3,1,0,2,2,2,0,2,2,1,2,
+0,2,3,0,0,0,0,1,0,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,
+3,0,2,3,1,3,3,2,3,3,0,3,3,0,3,2,2,3,2,3,3,3,0,0,2,2,3,0,1,1,1,3,
+0,0,3,0,0,0,2,2,0,1,3,0,1,2,2,2,3,0,0,0,0,0,1,0,0,0,0,0,0,0,0,1,
+3,2,3,3,2,0,3,3,2,2,3,1,3,2,1,3,2,0,1,2,2,0,2,3,2,1,0,3,0,0,0,0,
+3,0,0,2,3,1,3,0,0,3,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,1,3,2,2,2,1,2,0,1,3,1,1,3,1,3,0,0,2,1,1,1,1,2,1,1,1,0,2,1,0,1,
+1,2,0,0,0,3,1,1,0,0,0,0,1,0,1,0,0,1,0,1,0,0,0,0,0,3,1,0,0,0,1,0,
+3,3,3,3,2,2,2,2,2,1,3,1,1,1,2,0,1,1,2,1,2,1,3,2,0,0,3,1,1,1,1,1,
+3,1,0,2,3,0,0,0,3,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,2,3,0,3,3,0,2,0,0,0,0,0,0,0,3,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,2,3,1,3,0,0,1,2,0,0,2,0,3,3,2,3,3,3,2,3,0,0,2,2,2,0,0,0,2,2,
+0,0,1,0,0,0,0,3,0,0,0,0,2,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+0,0,0,3,0,2,0,0,0,0,0,0,0,0,0,0,1,2,3,1,3,3,0,0,1,0,3,0,0,0,0,0,
+0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,1,2,3,1,2,3,1,0,3,0,2,2,1,0,2,1,1,2,0,1,0,0,1,1,1,1,0,1,0,0,
+1,0,0,0,0,1,1,0,3,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,3,3,2,1,0,1,1,1,3,1,2,2,2,2,2,2,1,1,1,1,0,3,1,0,1,3,1,1,1,1,
+1,1,0,2,0,1,3,1,1,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,1,
+3,0,2,2,1,3,3,2,3,3,0,1,1,0,2,2,1,2,1,3,3,1,0,0,3,2,0,0,0,0,2,1,
+0,1,0,0,0,0,1,2,0,1,1,3,1,1,2,2,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,
+0,0,3,0,0,1,0,0,0,3,0,0,3,0,3,1,0,1,1,1,3,2,0,0,0,3,0,0,0,0,2,0,
+0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,
+3,3,1,3,2,1,3,3,1,2,2,0,1,2,1,0,1,2,0,0,0,0,0,3,0,0,0,3,0,0,0,0,
+3,0,0,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,1,2,0,3,3,3,2,2,0,1,1,0,1,3,0,0,0,2,2,0,0,0,0,3,1,0,1,0,0,0,
+0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,2,3,1,2,0,0,2,1,0,3,1,0,1,2,0,1,1,1,1,3,0,0,3,1,1,0,2,2,1,1,
+0,2,0,0,0,0,0,1,0,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,3,1,2,0,0,2,2,0,1,2,0,1,0,1,3,1,2,1,0,0,0,2,0,3,0,0,0,1,0,
+0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,1,1,2,2,0,0,0,2,0,2,1,0,1,1,0,1,1,1,2,1,0,0,1,1,1,0,2,1,1,1,
+0,1,1,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,1,
+0,0,0,2,0,1,3,1,1,1,1,0,0,0,0,3,2,0,1,0,0,0,1,2,0,0,0,1,0,0,0,0,
+0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,3,3,3,3,1,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,0,2,3,2,2,0,0,0,1,0,0,0,0,2,3,2,1,2,2,3,0,0,0,2,3,1,0,0,0,1,1,
+0,0,1,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,1,0,1,0,0,0,0,0,0,0,0,0,
+3,3,2,2,0,1,0,0,0,0,2,0,2,0,1,0,0,0,1,1,0,0,0,2,1,0,1,0,1,1,0,0,
+0,1,0,2,0,0,1,0,3,0,1,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,1,0,0,1,0,0,0,0,0,1,1,2,0,0,0,0,1,0,0,1,3,1,0,0,0,0,1,1,0,0,
+0,1,0,0,0,0,3,0,0,0,0,0,0,3,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,
+3,3,1,1,1,1,2,3,0,0,2,1,1,1,1,1,0,2,1,1,0,0,0,2,1,0,1,2,1,1,0,1,
+2,1,0,3,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,3,1,0,0,0,0,0,0,0,3,0,0,0,3,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,
+0,0,0,2,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,3,2,0,0,0,0,0,0,1,2,1,0,1,1,0,2,0,0,1,0,0,2,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,2,0,0,0,1,3,0,1,0,0,0,2,0,0,0,0,0,0,0,1,2,0,0,0,0,0,
+3,3,0,0,1,1,2,0,0,1,2,1,0,1,1,1,0,1,1,0,0,2,1,1,0,1,0,0,1,1,1,0,
+0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,2,2,1,0,0,0,0,1,0,0,0,0,3,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,3,0,0,1,1,0,0,0,2,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+1,1,0,1,2,0,1,2,0,0,1,1,0,2,0,1,0,0,1,0,0,0,0,1,0,0,0,2,0,0,0,0,
+1,0,0,1,0,1,1,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,1,0,0,0,0,0,0,0,1,1,0,1,1,0,2,1,3,0,0,0,0,1,1,0,0,0,0,0,0,0,3,
+1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,1,0,1,0,0,2,0,0,2,0,0,1,1,2,0,0,1,1,0,0,0,1,0,0,0,1,1,0,0,0,
+1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,
+1,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,1,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,2,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,3,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,
+1,0,0,0,0,0,0,0,0,1,0,0,0,0,2,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,1,1,0,0,2,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+)
+
+TIS620ThaiModel = {
+  'charToOrderMap': TIS620CharToOrderMap,
+  'precedenceMatrix': ThaiLangModel,
+  'mTypicalPositiveRatio': 0.926386,
+  'keepEnglishLetter': False,
+  'charsetName': "TIS-620"
+}
+
+# flake8: noqa
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py
new file mode 100644
index 0000000..eef3573
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/latin1prober.py
@@ -0,0 +1,139 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetprober import CharSetProber
+from .constants import eNotMe
+from .compat import wrap_ord
+
+FREQ_CAT_NUM = 4
+
+UDF = 0  # undefined
+OTH = 1  # other
+ASC = 2  # ascii capital letter
+ASS = 3  # ascii small letter
+ACV = 4  # accent capital vowel
+ACO = 5  # accent capital other
+ASV = 6  # accent small vowel
+ASO = 7  # accent small other
+CLASS_NUM = 8  # total classes
+
+Latin1_CharToClass = (
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 00 - 07
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 08 - 0F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 10 - 17
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 18 - 1F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 20 - 27
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 28 - 2F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 30 - 37
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 38 - 3F
+    OTH, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 40 - 47
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 48 - 4F
+    ASC, ASC, ASC, ASC, ASC, ASC, ASC, ASC,   # 50 - 57
+    ASC, ASC, ASC, OTH, OTH, OTH, OTH, OTH,   # 58 - 5F
+    OTH, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 60 - 67
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 68 - 6F
+    ASS, ASS, ASS, ASS, ASS, ASS, ASS, ASS,   # 70 - 77
+    ASS, ASS, ASS, OTH, OTH, OTH, OTH, OTH,   # 78 - 7F
+    OTH, UDF, OTH, ASO, OTH, OTH, OTH, OTH,   # 80 - 87
+    OTH, OTH, ACO, OTH, ACO, UDF, ACO, UDF,   # 88 - 8F
+    UDF, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # 90 - 97
+    OTH, OTH, ASO, OTH, ASO, UDF, ASO, ACO,   # 98 - 9F
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A0 - A7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # A8 - AF
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B0 - B7
+    OTH, OTH, OTH, OTH, OTH, OTH, OTH, OTH,   # B8 - BF
+    ACV, ACV, ACV, ACV, ACV, ACV, ACO, ACO,   # C0 - C7
+    ACV, ACV, ACV, ACV, ACV, ACV, ACV, ACV,   # C8 - CF
+    ACO, ACO, ACV, ACV, ACV, ACV, ACV, OTH,   # D0 - D7
+    ACV, ACV, ACV, ACV, ACV, ACO, ACO, ACO,   # D8 - DF
+    ASV, ASV, ASV, ASV, ASV, ASV, ASO, ASO,   # E0 - E7
+    ASV, ASV, ASV, ASV, ASV, ASV, ASV, ASV,   # E8 - EF
+    ASO, ASO, ASV, ASV, ASV, ASV, ASV, OTH,   # F0 - F7
+    ASV, ASV, ASV, ASV, ASV, ASO, ASO, ASO,   # F8 - FF
+)
+
+# 0 : illegal
+# 1 : very unlikely
+# 2 : normal
+# 3 : very likely
+Latin1ClassModel = (
+    # UDF OTH ASC ASS ACV ACO ASV ASO
+    0,  0,  0,  0,  0,  0,  0,  0,  # UDF
+    0,  3,  3,  3,  3,  3,  3,  3,  # OTH
+    0,  3,  3,  3,  3,  3,  3,  3,  # ASC
+    0,  3,  3,  3,  1,  1,  3,  3,  # ASS
+    0,  3,  3,  3,  1,  2,  1,  2,  # ACV
+    0,  3,  3,  3,  3,  3,  3,  3,  # ACO
+    0,  3,  1,  3,  1,  1,  1,  3,  # ASV
+    0,  3,  1,  3,  1,  1,  3,  3,  # ASO
+)
+
+
+class Latin1Prober(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self.reset()
+
+    def reset(self):
+        self._mLastCharClass = OTH
+        self._mFreqCounter = [0] * FREQ_CAT_NUM
+        CharSetProber.reset(self)
+
+    def get_charset_name(self):
+        return "windows-1252"
+
+    def feed(self, aBuf):
+        aBuf = self.filter_with_english_letters(aBuf)
+        for c in aBuf:
+            charClass = Latin1_CharToClass[wrap_ord(c)]
+            freq = Latin1ClassModel[(self._mLastCharClass * CLASS_NUM)
+                                    + charClass]
+            if freq == 0:
+                self._mState = eNotMe
+                break
+            self._mFreqCounter[freq] += 1
+            self._mLastCharClass = charClass
+
+        return self.get_state()
+
+    def get_confidence(self):
+        if self.get_state() == eNotMe:
+            return 0.01
+
+        total = sum(self._mFreqCounter)
+        if total < 0.01:
+            confidence = 0.0
+        else:
+            confidence = ((self._mFreqCounter[3] - self._mFreqCounter[1] * 20.0)
+                          / total)
+        if confidence < 0.0:
+            confidence = 0.0
+        # lower the confidence of latin1 so that other more accurate
+        # detector can take priority.
+        confidence = confidence * 0.73
+        return confidence
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py
new file mode 100644
index 0000000..bb42f2f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcharsetprober.py
@@ -0,0 +1,86 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .charsetprober import CharSetProber
+
+
+class MultiByteCharSetProber(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mDistributionAnalyzer = None
+        self._mCodingSM = None
+        self._mLastChar = [0, 0]
+
+    def reset(self):
+        CharSetProber.reset(self)
+        if self._mCodingSM:
+            self._mCodingSM.reset()
+        if self._mDistributionAnalyzer:
+            self._mDistributionAnalyzer.reset()
+        self._mLastChar = [0, 0]
+
+    def get_charset_name(self):
+        pass
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mDistributionAnalyzer.got_enough_data() and
+                    (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        return self._mDistributionAnalyzer.get_confidence()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py
new file mode 100644
index 0000000..03c9dcf
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcsgroupprober.py
@@ -0,0 +1,54 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#   Proofpoint, Inc.
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .utf8prober import UTF8Prober
+from .sjisprober import SJISProber
+from .eucjpprober import EUCJPProber
+from .gb2312prober import GB2312Prober
+from .euckrprober import EUCKRProber
+from .cp949prober import CP949Prober
+from .big5prober import Big5Prober
+from .euctwprober import EUCTWProber
+
+
+class MBCSGroupProber(CharSetGroupProber):
+    def __init__(self):
+        CharSetGroupProber.__init__(self)
+        self._mProbers = [
+            UTF8Prober(),
+            SJISProber(),
+            EUCJPProber(),
+            GB2312Prober(),
+            EUCKRProber(),
+            CP949Prober(),
+            Big5Prober(),
+            EUCTWProber()
+        ]
+        self.reset()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py
new file mode 100644
index 0000000..efe678c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/mbcssm.py
@@ -0,0 +1,572 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .constants import eStart, eError, eItsMe
+
+# BIG5
+
+BIG5_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07    #allow 0x00 as legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    4,4,4,4,4,4,4,4,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    4,3,3,3,3,3,3,3,  # a0 - a7
+    3,3,3,3,3,3,3,3,  # a8 - af
+    3,3,3,3,3,3,3,3,  # b0 - b7
+    3,3,3,3,3,3,3,3,  # b8 - bf
+    3,3,3,3,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0  # f8 - ff
+)
+
+BIG5_st = (
+    eError,eStart,eStart,     3,eError,eError,eError,eError,#00-07
+    eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,#08-0f
+    eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart#10-17
+)
+
+Big5CharLenTable = (0, 1, 1, 2, 0)
+
+Big5SMModel = {'classTable': BIG5_cls,
+               'classFactor': 5,
+               'stateTable': BIG5_st,
+               'charLenTable': Big5CharLenTable,
+               'name': 'Big5'}
+
+# CP949
+
+CP949_cls  = (
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,0,0,  # 00 - 0f
+    1,1,1,1,1,1,1,1, 1,1,1,0,1,1,1,1,  # 10 - 1f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 20 - 2f
+    1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,  # 30 - 3f
+    1,4,4,4,4,4,4,4, 4,4,4,4,4,4,4,4,  # 40 - 4f
+    4,4,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 50 - 5f
+    1,5,5,5,5,5,5,5, 5,5,5,5,5,5,5,5,  # 60 - 6f
+    5,5,5,5,5,5,5,5, 5,5,5,1,1,1,1,1,  # 70 - 7f
+    0,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 80 - 8f
+    6,6,6,6,6,6,6,6, 6,6,6,6,6,6,6,6,  # 90 - 9f
+    6,7,7,7,7,7,7,7, 7,7,7,7,7,8,8,8,  # a0 - af
+    7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,  # b0 - bf
+    7,7,7,7,7,7,9,2, 2,3,2,2,2,2,2,2,  # c0 - cf
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # d0 - df
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,  # e0 - ef
+    2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,0,  # f0 - ff
+)
+
+CP949_st = (
+#cls=    0      1      2      3      4      5      6      7      8      9  # previous state =
+    eError,eStart,     3,eError,eStart,eStart,     4,     5,eError,     6, # eStart
+    eError,eError,eError,eError,eError,eError,eError,eError,eError,eError, # eError
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe, # eItsMe
+    eError,eError,eStart,eStart,eError,eError,eError,eStart,eStart,eStart, # 3
+    eError,eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 4
+    eError,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart,eStart, # 5
+    eError,eStart,eStart,eStart,eStart,eError,eError,eStart,eStart,eStart, # 6
+)
+
+CP949CharLenTable = (0, 1, 2, 0, 1, 1, 2, 2, 0, 2)
+
+CP949SMModel = {'classTable': CP949_cls,
+                'classFactor': 10,
+                'stateTable': CP949_st,
+                'charLenTable': CP949CharLenTable,
+                'name': 'CP949'}
+
+# EUC-JP
+
+EUCJP_cls = (
+    4,4,4,4,4,4,4,4,  # 00 - 07
+    4,4,4,4,4,4,5,5,  # 08 - 0f
+    4,4,4,4,4,4,4,4,  # 10 - 17
+    4,4,4,5,4,4,4,4,  # 18 - 1f
+    4,4,4,4,4,4,4,4,  # 20 - 27
+    4,4,4,4,4,4,4,4,  # 28 - 2f
+    4,4,4,4,4,4,4,4,  # 30 - 37
+    4,4,4,4,4,4,4,4,  # 38 - 3f
+    4,4,4,4,4,4,4,4,  # 40 - 47
+    4,4,4,4,4,4,4,4,  # 48 - 4f
+    4,4,4,4,4,4,4,4,  # 50 - 57
+    4,4,4,4,4,4,4,4,  # 58 - 5f
+    4,4,4,4,4,4,4,4,  # 60 - 67
+    4,4,4,4,4,4,4,4,  # 68 - 6f
+    4,4,4,4,4,4,4,4,  # 70 - 77
+    4,4,4,4,4,4,4,4,  # 78 - 7f
+    5,5,5,5,5,5,5,5,  # 80 - 87
+    5,5,5,5,5,5,1,3,  # 88 - 8f
+    5,5,5,5,5,5,5,5,  # 90 - 97
+    5,5,5,5,5,5,5,5,  # 98 - 9f
+    5,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,0,5  # f8 - ff
+)
+
+EUCJP_st = (
+          3,     4,     3,     5,eStart,eError,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,eStart,eError,eStart,eError,eError,eError,#10-17
+     eError,eError,eStart,eError,eError,eError,     3,eError,#18-1f
+          3,eError,eError,eError,eStart,eStart,eStart,eStart#20-27
+)
+
+EUCJPCharLenTable = (2, 2, 2, 3, 1, 0)
+
+EUCJPSMModel = {'classTable': EUCJP_cls,
+                'classFactor': 6,
+                'stateTable': EUCJP_st,
+                'charLenTable': EUCJPCharLenTable,
+                'name': 'EUC-JP'}
+
+# EUC-KR
+
+EUCKR_cls  = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,3,3,3,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,3,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    2,2,2,2,2,2,2,2,  # e0 - e7
+    2,2,2,2,2,2,2,2,  # e8 - ef
+    2,2,2,2,2,2,2,2,  # f0 - f7
+    2,2,2,2,2,2,2,0   # f8 - ff
+)
+
+EUCKR_st = (
+    eError,eStart,     3,eError,eError,eError,eError,eError,#00-07
+    eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,eStart,eStart #08-0f
+)
+
+EUCKRCharLenTable = (0, 1, 2, 0)
+
+EUCKRSMModel = {'classTable': EUCKR_cls,
+                'classFactor': 4,
+                'stateTable': EUCKR_st,
+                'charLenTable': EUCKRCharLenTable,
+                'name': 'EUC-KR'}
+
+# EUC-TW
+
+EUCTW_cls = (
+    2,2,2,2,2,2,2,2,  # 00 - 07
+    2,2,2,2,2,2,0,0,  # 08 - 0f
+    2,2,2,2,2,2,2,2,  # 10 - 17
+    2,2,2,0,2,2,2,2,  # 18 - 1f
+    2,2,2,2,2,2,2,2,  # 20 - 27
+    2,2,2,2,2,2,2,2,  # 28 - 2f
+    2,2,2,2,2,2,2,2,  # 30 - 37
+    2,2,2,2,2,2,2,2,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,2,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,6,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,3,4,4,4,4,4,4,  # a0 - a7
+    5,5,1,1,1,1,1,1,  # a8 - af
+    1,1,1,1,1,1,1,1,  # b0 - b7
+    1,1,1,1,1,1,1,1,  # b8 - bf
+    1,1,3,1,3,3,3,3,  # c0 - c7
+    3,3,3,3,3,3,3,3,  # c8 - cf
+    3,3,3,3,3,3,3,3,  # d0 - d7
+    3,3,3,3,3,3,3,3,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,3,3,3,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,3,3,0   # f8 - ff
+)
+
+EUCTW_st = (
+    eError,eError,eStart,     3,     3,     3,     4,eError,#00-07
+    eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eStart,eError,#10-17
+    eStart,eStart,eStart,eError,eError,eError,eError,eError,#18-1f
+         5,eError,eError,eError,eStart,eError,eStart,eStart,#20-27
+    eStart,eError,eStart,eStart,eStart,eStart,eStart,eStart #28-2f
+)
+
+EUCTWCharLenTable = (0, 0, 1, 2, 2, 2, 3)
+
+EUCTWSMModel = {'classTable': EUCTW_cls,
+                'classFactor': 7,
+                'stateTable': EUCTW_st,
+                'charLenTable': EUCTWCharLenTable,
+                'name': 'x-euc-tw'}
+
+# GB2312
+
+GB2312_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    3,3,3,3,3,3,3,3,  # 30 - 37
+    3,3,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,4,  # 78 - 7f
+    5,6,6,6,6,6,6,6,  # 80 - 87
+    6,6,6,6,6,6,6,6,  # 88 - 8f
+    6,6,6,6,6,6,6,6,  # 90 - 97
+    6,6,6,6,6,6,6,6,  # 98 - 9f
+    6,6,6,6,6,6,6,6,  # a0 - a7
+    6,6,6,6,6,6,6,6,  # a8 - af
+    6,6,6,6,6,6,6,6,  # b0 - b7
+    6,6,6,6,6,6,6,6,  # b8 - bf
+    6,6,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    6,6,6,6,6,6,6,6,  # e0 - e7
+    6,6,6,6,6,6,6,6,  # e8 - ef
+    6,6,6,6,6,6,6,6,  # f0 - f7
+    6,6,6,6,6,6,6,0   # f8 - ff
+)
+
+GB2312_st = (
+    eError,eStart,eStart,eStart,eStart,eStart,     3,eError,#00-07
+    eError,eError,eError,eError,eError,eError,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eError,eError,eStart,#10-17
+         4,eError,eStart,eStart,eError,eError,eError,eError,#18-1f
+    eError,eError,     5,eError,eError,eError,eItsMe,eError,#20-27
+    eError,eError,eStart,eStart,eStart,eStart,eStart,eStart #28-2f
+)
+
+# To be accurate, the length of class 6 can be either 2 or 4.
+# But it is not necessary to discriminate between the two since
+# it is used for frequency analysis only, and we are validing
+# each code range there as well. So it is safe to set it to be
+# 2 here.
+GB2312CharLenTable = (0, 1, 1, 1, 1, 1, 2)
+
+GB2312SMModel = {'classTable': GB2312_cls,
+                  'classFactor': 7,
+                  'stateTable': GB2312_st,
+                  'charLenTable': GB2312CharLenTable,
+                  'name': 'GB2312'}
+
+# Shift_JIS
+
+SJIS_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    2,2,2,2,2,2,2,2,  # 40 - 47
+    2,2,2,2,2,2,2,2,  # 48 - 4f
+    2,2,2,2,2,2,2,2,  # 50 - 57
+    2,2,2,2,2,2,2,2,  # 58 - 5f
+    2,2,2,2,2,2,2,2,  # 60 - 67
+    2,2,2,2,2,2,2,2,  # 68 - 6f
+    2,2,2,2,2,2,2,2,  # 70 - 77
+    2,2,2,2,2,2,2,1,  # 78 - 7f
+    3,3,3,3,3,2,2,3,  # 80 - 87
+    3,3,3,3,3,3,3,3,  # 88 - 8f
+    3,3,3,3,3,3,3,3,  # 90 - 97
+    3,3,3,3,3,3,3,3,  # 98 - 9f
+    #0xa0 is illegal in sjis encoding, but some pages does
+    #contain such byte. We need to be more error forgiven.
+    2,2,2,2,2,2,2,2,  # a0 - a7
+    2,2,2,2,2,2,2,2,  # a8 - af
+    2,2,2,2,2,2,2,2,  # b0 - b7
+    2,2,2,2,2,2,2,2,  # b8 - bf
+    2,2,2,2,2,2,2,2,  # c0 - c7
+    2,2,2,2,2,2,2,2,  # c8 - cf
+    2,2,2,2,2,2,2,2,  # d0 - d7
+    2,2,2,2,2,2,2,2,  # d8 - df
+    3,3,3,3,3,3,3,3,  # e0 - e7
+    3,3,3,3,3,4,4,4,  # e8 - ef
+    3,3,3,3,3,3,3,3,  # f0 - f7
+    3,3,3,3,3,0,0,0)  # f8 - ff
+
+
+SJIS_st = (
+    eError,eStart,eStart,     3,eError,eError,eError,eError,#00-07
+    eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+    eItsMe,eItsMe,eError,eError,eStart,eStart,eStart,eStart #10-17
+)
+
+SJISCharLenTable = (0, 1, 1, 2, 0, 0)
+
+SJISSMModel = {'classTable': SJIS_cls,
+               'classFactor': 6,
+               'stateTable': SJIS_st,
+               'charLenTable': SJISCharLenTable,
+               'name': 'Shift_JIS'}
+
+# UCS2-BE
+
+UCS2BE_cls = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2BE_st  = (
+          5,     7,     7,eError,     4,     3,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,     6,     6,     6,     6,eError,eError,#10-17
+          6,     6,     6,     6,     6,eItsMe,     6,     6,#18-1f
+          6,     6,     6,     6,     5,     7,     7,eError,#20-27
+          5,     8,     6,     6,eError,     6,     6,     6,#28-2f
+          6,     6,     6,     6,eError,eError,eStart,eStart #30-37
+)
+
+UCS2BECharLenTable = (2, 2, 2, 0, 2, 2)
+
+UCS2BESMModel = {'classTable': UCS2BE_cls,
+                 'classFactor': 6,
+                 'stateTable': UCS2BE_st,
+                 'charLenTable': UCS2BECharLenTable,
+                 'name': 'UTF-16BE'}
+
+# UCS2-LE
+
+UCS2LE_cls = (
+    0,0,0,0,0,0,0,0,  # 00 - 07
+    0,0,1,0,0,2,0,0,  # 08 - 0f
+    0,0,0,0,0,0,0,0,  # 10 - 17
+    0,0,0,3,0,0,0,0,  # 18 - 1f
+    0,0,0,0,0,0,0,0,  # 20 - 27
+    0,3,3,3,3,3,0,0,  # 28 - 2f
+    0,0,0,0,0,0,0,0,  # 30 - 37
+    0,0,0,0,0,0,0,0,  # 38 - 3f
+    0,0,0,0,0,0,0,0,  # 40 - 47
+    0,0,0,0,0,0,0,0,  # 48 - 4f
+    0,0,0,0,0,0,0,0,  # 50 - 57
+    0,0,0,0,0,0,0,0,  # 58 - 5f
+    0,0,0,0,0,0,0,0,  # 60 - 67
+    0,0,0,0,0,0,0,0,  # 68 - 6f
+    0,0,0,0,0,0,0,0,  # 70 - 77
+    0,0,0,0,0,0,0,0,  # 78 - 7f
+    0,0,0,0,0,0,0,0,  # 80 - 87
+    0,0,0,0,0,0,0,0,  # 88 - 8f
+    0,0,0,0,0,0,0,0,  # 90 - 97
+    0,0,0,0,0,0,0,0,  # 98 - 9f
+    0,0,0,0,0,0,0,0,  # a0 - a7
+    0,0,0,0,0,0,0,0,  # a8 - af
+    0,0,0,0,0,0,0,0,  # b0 - b7
+    0,0,0,0,0,0,0,0,  # b8 - bf
+    0,0,0,0,0,0,0,0,  # c0 - c7
+    0,0,0,0,0,0,0,0,  # c8 - cf
+    0,0,0,0,0,0,0,0,  # d0 - d7
+    0,0,0,0,0,0,0,0,  # d8 - df
+    0,0,0,0,0,0,0,0,  # e0 - e7
+    0,0,0,0,0,0,0,0,  # e8 - ef
+    0,0,0,0,0,0,0,0,  # f0 - f7
+    0,0,0,0,0,0,4,5   # f8 - ff
+)
+
+UCS2LE_st = (
+          6,     6,     7,     6,     4,     3,eError,eError,#00-07
+     eError,eError,eError,eError,eItsMe,eItsMe,eItsMe,eItsMe,#08-0f
+     eItsMe,eItsMe,     5,     5,     5,eError,eItsMe,eError,#10-17
+          5,     5,     5,eError,     5,eError,     6,     6,#18-1f
+          7,     6,     8,     8,     5,     5,     5,eError,#20-27
+          5,     5,     5,eError,eError,eError,     5,     5,#28-2f
+          5,     5,     5,eError,     5,eError,eStart,eStart #30-37
+)
+
+UCS2LECharLenTable = (2, 2, 2, 2, 2, 2)
+
+UCS2LESMModel = {'classTable': UCS2LE_cls,
+                 'classFactor': 6,
+                 'stateTable': UCS2LE_st,
+                 'charLenTable': UCS2LECharLenTable,
+                 'name': 'UTF-16LE'}
+
+# UTF-8
+
+UTF8_cls = (
+    1,1,1,1,1,1,1,1,  # 00 - 07  #allow 0x00 as a legal value
+    1,1,1,1,1,1,0,0,  # 08 - 0f
+    1,1,1,1,1,1,1,1,  # 10 - 17
+    1,1,1,0,1,1,1,1,  # 18 - 1f
+    1,1,1,1,1,1,1,1,  # 20 - 27
+    1,1,1,1,1,1,1,1,  # 28 - 2f
+    1,1,1,1,1,1,1,1,  # 30 - 37
+    1,1,1,1,1,1,1,1,  # 38 - 3f
+    1,1,1,1,1,1,1,1,  # 40 - 47
+    1,1,1,1,1,1,1,1,  # 48 - 4f
+    1,1,1,1,1,1,1,1,  # 50 - 57
+    1,1,1,1,1,1,1,1,  # 58 - 5f
+    1,1,1,1,1,1,1,1,  # 60 - 67
+    1,1,1,1,1,1,1,1,  # 68 - 6f
+    1,1,1,1,1,1,1,1,  # 70 - 77
+    1,1,1,1,1,1,1,1,  # 78 - 7f
+    2,2,2,2,3,3,3,3,  # 80 - 87
+    4,4,4,4,4,4,4,4,  # 88 - 8f
+    4,4,4,4,4,4,4,4,  # 90 - 97
+    4,4,4,4,4,4,4,4,  # 98 - 9f
+    5,5,5,5,5,5,5,5,  # a0 - a7
+    5,5,5,5,5,5,5,5,  # a8 - af
+    5,5,5,5,5,5,5,5,  # b0 - b7
+    5,5,5,5,5,5,5,5,  # b8 - bf
+    0,0,6,6,6,6,6,6,  # c0 - c7
+    6,6,6,6,6,6,6,6,  # c8 - cf
+    6,6,6,6,6,6,6,6,  # d0 - d7
+    6,6,6,6,6,6,6,6,  # d8 - df
+    7,8,8,8,8,8,8,8,  # e0 - e7
+    8,8,8,8,8,9,8,8,  # e8 - ef
+    10,11,11,11,11,11,11,11,  # f0 - f7
+    12,13,13,13,14,15,0,0    # f8 - ff
+)
+
+UTF8_st = (
+    eError,eStart,eError,eError,eError,eError,     12,   10,#00-07
+         9,     11,     8,     7,     6,     5,     4,    3,#08-0f
+    eError,eError,eError,eError,eError,eError,eError,eError,#10-17
+    eError,eError,eError,eError,eError,eError,eError,eError,#18-1f
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,#20-27
+    eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,eItsMe,#28-2f
+    eError,eError,     5,     5,     5,     5,eError,eError,#30-37
+    eError,eError,eError,eError,eError,eError,eError,eError,#38-3f
+    eError,eError,eError,     5,     5,     5,eError,eError,#40-47
+    eError,eError,eError,eError,eError,eError,eError,eError,#48-4f
+    eError,eError,     7,     7,     7,     7,eError,eError,#50-57
+    eError,eError,eError,eError,eError,eError,eError,eError,#58-5f
+    eError,eError,eError,eError,     7,     7,eError,eError,#60-67
+    eError,eError,eError,eError,eError,eError,eError,eError,#68-6f
+    eError,eError,     9,     9,     9,     9,eError,eError,#70-77
+    eError,eError,eError,eError,eError,eError,eError,eError,#78-7f
+    eError,eError,eError,eError,eError,     9,eError,eError,#80-87
+    eError,eError,eError,eError,eError,eError,eError,eError,#88-8f
+    eError,eError,    12,    12,    12,    12,eError,eError,#90-97
+    eError,eError,eError,eError,eError,eError,eError,eError,#98-9f
+    eError,eError,eError,eError,eError,    12,eError,eError,#a0-a7
+    eError,eError,eError,eError,eError,eError,eError,eError,#a8-af
+    eError,eError,    12,    12,    12,eError,eError,eError,#b0-b7
+    eError,eError,eError,eError,eError,eError,eError,eError,#b8-bf
+    eError,eError,eStart,eStart,eStart,eStart,eError,eError,#c0-c7
+    eError,eError,eError,eError,eError,eError,eError,eError #c8-cf
+)
+
+UTF8CharLenTable = (0, 1, 0, 0, 0, 0, 2, 3, 3, 3, 4, 4, 5, 5, 6, 6)
+
+UTF8SMModel = {'classTable': UTF8_cls,
+               'classFactor': 16,
+               'stateTable': UTF8_st,
+               'charLenTable': UTF8CharLenTable,
+               'name': 'UTF-8'}
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py
new file mode 100644
index 0000000..37291bd
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcharsetprober.py
@@ -0,0 +1,120 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from . import constants
+from .charsetprober import CharSetProber
+from .compat import wrap_ord
+
+SAMPLE_SIZE = 64
+SB_ENOUGH_REL_THRESHOLD = 1024
+POSITIVE_SHORTCUT_THRESHOLD = 0.95
+NEGATIVE_SHORTCUT_THRESHOLD = 0.05
+SYMBOL_CAT_ORDER = 250
+NUMBER_OF_SEQ_CAT = 4
+POSITIVE_CAT = NUMBER_OF_SEQ_CAT - 1
+#NEGATIVE_CAT = 0
+
+
+class SingleByteCharSetProber(CharSetProber):
+    def __init__(self, model, reversed=False, nameProber=None):
+        CharSetProber.__init__(self)
+        self._mModel = model
+        # TRUE if we need to reverse every pair in the model lookup
+        self._mReversed = reversed
+        # Optional auxiliary prober for name decision
+        self._mNameProber = nameProber
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        # char order of last character
+        self._mLastOrder = 255
+        self._mSeqCounters = [0] * NUMBER_OF_SEQ_CAT
+        self._mTotalSeqs = 0
+        self._mTotalChar = 0
+        # characters that fall in our sampling range
+        self._mFreqChar = 0
+
+    def get_charset_name(self):
+        if self._mNameProber:
+            return self._mNameProber.get_charset_name()
+        else:
+            return self._mModel['charsetName']
+
+    def feed(self, aBuf):
+        if not self._mModel['keepEnglishLetter']:
+            aBuf = self.filter_without_english_letters(aBuf)
+        aLen = len(aBuf)
+        if not aLen:
+            return self.get_state()
+        for c in aBuf:
+            order = self._mModel['charToOrderMap'][wrap_ord(c)]
+            if order < SYMBOL_CAT_ORDER:
+                self._mTotalChar += 1
+            if order < SAMPLE_SIZE:
+                self._mFreqChar += 1
+                if self._mLastOrder < SAMPLE_SIZE:
+                    self._mTotalSeqs += 1
+                    if not self._mReversed:
+                        i = (self._mLastOrder * SAMPLE_SIZE) + order
+                        model = self._mModel['precedenceMatrix'][i]
+                    else:  # reverse the order of the letters in the lookup
+                        i = (order * SAMPLE_SIZE) + self._mLastOrder
+                        model = self._mModel['precedenceMatrix'][i]
+                    self._mSeqCounters[model] += 1
+            self._mLastOrder = order
+
+        if self.get_state() == constants.eDetecting:
+            if self._mTotalSeqs > SB_ENOUGH_REL_THRESHOLD:
+                cf = self.get_confidence()
+                if cf > POSITIVE_SHORTCUT_THRESHOLD:
+                    if constants._debug:
+                        sys.stderr.write('%s confidence = %s, we have a'
+                                         'winner\n' %
+                                         (self._mModel['charsetName'], cf))
+                    self._mState = constants.eFoundIt
+                elif cf < NEGATIVE_SHORTCUT_THRESHOLD:
+                    if constants._debug:
+                        sys.stderr.write('%s confidence = %s, below negative'
+                                         'shortcut threshhold %s\n' %
+                                         (self._mModel['charsetName'], cf,
+                                          NEGATIVE_SHORTCUT_THRESHOLD))
+                    self._mState = constants.eNotMe
+
+        return self.get_state()
+
+    def get_confidence(self):
+        r = 0.01
+        if self._mTotalSeqs > 0:
+            r = ((1.0 * self._mSeqCounters[POSITIVE_CAT]) / self._mTotalSeqs
+                 / self._mModel['mTypicalPositiveRatio'])
+            r = r * self._mFreqChar / self._mTotalChar
+            if r >= 1.0:
+                r = 0.99
+        return r
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py
new file mode 100644
index 0000000..1b6196c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sbcsgroupprober.py
@@ -0,0 +1,69 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from .charsetgroupprober import CharSetGroupProber
+from .sbcharsetprober import SingleByteCharSetProber
+from .langcyrillicmodel import (Win1251CyrillicModel, Koi8rModel,
+                                Latin5CyrillicModel, MacCyrillicModel,
+                                Ibm866Model, Ibm855Model)
+from .langgreekmodel import Latin7GreekModel, Win1253GreekModel
+from .langbulgarianmodel import Latin5BulgarianModel, Win1251BulgarianModel
+from .langhungarianmodel import Latin2HungarianModel, Win1250HungarianModel
+from .langthaimodel import TIS620ThaiModel
+from .langhebrewmodel import Win1255HebrewModel
+from .hebrewprober import HebrewProber
+
+
+class SBCSGroupProber(CharSetGroupProber):
+    def __init__(self):
+        CharSetGroupProber.__init__(self)
+        self._mProbers = [
+            SingleByteCharSetProber(Win1251CyrillicModel),
+            SingleByteCharSetProber(Koi8rModel),
+            SingleByteCharSetProber(Latin5CyrillicModel),
+            SingleByteCharSetProber(MacCyrillicModel),
+            SingleByteCharSetProber(Ibm866Model),
+            SingleByteCharSetProber(Ibm855Model),
+            SingleByteCharSetProber(Latin7GreekModel),
+            SingleByteCharSetProber(Win1253GreekModel),
+            SingleByteCharSetProber(Latin5BulgarianModel),
+            SingleByteCharSetProber(Win1251BulgarianModel),
+            SingleByteCharSetProber(Latin2HungarianModel),
+            SingleByteCharSetProber(Win1250HungarianModel),
+            SingleByteCharSetProber(TIS620ThaiModel),
+        ]
+        hebrewProber = HebrewProber()
+        logicalHebrewProber = SingleByteCharSetProber(Win1255HebrewModel,
+                                                      False, hebrewProber)
+        visualHebrewProber = SingleByteCharSetProber(Win1255HebrewModel, True,
+                                                     hebrewProber)
+        hebrewProber.set_model_probers(logicalHebrewProber, visualHebrewProber)
+        self._mProbers.extend([hebrewProber, logicalHebrewProber,
+                               visualHebrewProber])
+
+        self.reset()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py
new file mode 100644
index 0000000..cd0e9e7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/sjisprober.py
@@ -0,0 +1,91 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+import sys
+from .mbcharsetprober import MultiByteCharSetProber
+from .codingstatemachine import CodingStateMachine
+from .chardistribution import SJISDistributionAnalysis
+from .jpcntx import SJISContextAnalysis
+from .mbcssm import SJISSMModel
+from . import constants
+
+
+class SJISProber(MultiByteCharSetProber):
+    def __init__(self):
+        MultiByteCharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(SJISSMModel)
+        self._mDistributionAnalyzer = SJISDistributionAnalysis()
+        self._mContextAnalyzer = SJISContextAnalysis()
+        self.reset()
+
+    def reset(self):
+        MultiByteCharSetProber.reset(self)
+        self._mContextAnalyzer.reset()
+
+    def get_charset_name(self):
+        return self._mContextAnalyzer.get_charset_name()
+
+    def feed(self, aBuf):
+        aLen = len(aBuf)
+        for i in range(0, aLen):
+            codingState = self._mCodingSM.next_state(aBuf[i])
+            if codingState == constants.eError:
+                if constants._debug:
+                    sys.stderr.write(self.get_charset_name()
+                                     + ' prober hit error at byte ' + str(i)
+                                     + '\n')
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                charLen = self._mCodingSM.get_current_charlen()
+                if i == 0:
+                    self._mLastChar[1] = aBuf[0]
+                    self._mContextAnalyzer.feed(self._mLastChar[2 - charLen:],
+                                                charLen)
+                    self._mDistributionAnalyzer.feed(self._mLastChar, charLen)
+                else:
+                    self._mContextAnalyzer.feed(aBuf[i + 1 - charLen:i + 3
+                                                     - charLen], charLen)
+                    self._mDistributionAnalyzer.feed(aBuf[i - 1:i + 1],
+                                                     charLen)
+
+        self._mLastChar[0] = aBuf[aLen - 1]
+
+        if self.get_state() == constants.eDetecting:
+            if (self._mContextAnalyzer.got_enough_data() and
+               (self.get_confidence() > constants.SHORTCUT_THRESHOLD)):
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        contxtCf = self._mContextAnalyzer.get_confidence()
+        distribCf = self._mDistributionAnalyzer.get_confidence()
+        return max(contxtCf, distribCf)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py
new file mode 100644
index 0000000..476522b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/universaldetector.py
@@ -0,0 +1,170 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is Mozilla Universal charset detector code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#   Shy Shalom - original C code
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+import sys
+import codecs
+from .latin1prober import Latin1Prober  # windows-1252
+from .mbcsgroupprober import MBCSGroupProber  # multi-byte character sets
+from .sbcsgroupprober import SBCSGroupProber  # single-byte character sets
+from .escprober import EscCharSetProber  # ISO-2122, etc.
+import re
+
+MINIMUM_THRESHOLD = 0.20
+ePureAscii = 0
+eEscAscii = 1
+eHighbyte = 2
+
+
+class UniversalDetector:
+    def __init__(self):
+        self._highBitDetector = re.compile(b'[\x80-\xFF]')
+        self._escDetector = re.compile(b'(\033|~{)')
+        self._mEscCharSetProber = None
+        self._mCharSetProbers = []
+        self.reset()
+
+    def reset(self):
+        self.result = {'encoding': None, 'confidence': 0.0}
+        self.done = False
+        self._mStart = True
+        self._mGotData = False
+        self._mInputState = ePureAscii
+        self._mLastChar = b''
+        if self._mEscCharSetProber:
+            self._mEscCharSetProber.reset()
+        for prober in self._mCharSetProbers:
+            prober.reset()
+
+    def feed(self, aBuf):
+        if self.done:
+            return
+
+        aLen = len(aBuf)
+        if not aLen:
+            return
+
+        if not self._mGotData:
+            # If the data starts with BOM, we know it is UTF
+            if aBuf[:3] == codecs.BOM_UTF8:
+                # EF BB BF  UTF-8 with BOM
+                self.result = {'encoding': "UTF-8-SIG", 'confidence': 1.0}
+            elif aBuf[:4] == codecs.BOM_UTF32_LE:
+                # FF FE 00 00  UTF-32, little-endian BOM
+                self.result = {'encoding': "UTF-32LE", 'confidence': 1.0}
+            elif aBuf[:4] == codecs.BOM_UTF32_BE:
+                # 00 00 FE FF  UTF-32, big-endian BOM
+                self.result = {'encoding': "UTF-32BE", 'confidence': 1.0}
+            elif aBuf[:4] == b'\xFE\xFF\x00\x00':
+                # FE FF 00 00  UCS-4, unusual octet order BOM (3412)
+                self.result = {
+                    'encoding': "X-ISO-10646-UCS-4-3412",
+                    'confidence': 1.0
+                }
+            elif aBuf[:4] == b'\x00\x00\xFF\xFE':
+                # 00 00 FF FE  UCS-4, unusual octet order BOM (2143)
+                self.result = {
+                    'encoding': "X-ISO-10646-UCS-4-2143",
+                    'confidence': 1.0
+                }
+            elif aBuf[:2] == codecs.BOM_LE:
+                # FF FE  UTF-16, little endian BOM
+                self.result = {'encoding': "UTF-16LE", 'confidence': 1.0}
+            elif aBuf[:2] == codecs.BOM_BE:
+                # FE FF  UTF-16, big endian BOM
+                self.result = {'encoding': "UTF-16BE", 'confidence': 1.0}
+
+        self._mGotData = True
+        if self.result['encoding'] and (self.result['confidence'] > 0.0):
+            self.done = True
+            return
+
+        if self._mInputState == ePureAscii:
+            if self._highBitDetector.search(aBuf):
+                self._mInputState = eHighbyte
+            elif ((self._mInputState == ePureAscii) and
+                    self._escDetector.search(self._mLastChar + aBuf)):
+                self._mInputState = eEscAscii
+
+        self._mLastChar = aBuf[-1:]
+
+        if self._mInputState == eEscAscii:
+            if not self._mEscCharSetProber:
+                self._mEscCharSetProber = EscCharSetProber()
+            if self._mEscCharSetProber.feed(aBuf) == constants.eFoundIt:
+                self.result = {'encoding': self._mEscCharSetProber.get_charset_name(),
+                               'confidence': self._mEscCharSetProber.get_confidence()}
+                self.done = True
+        elif self._mInputState == eHighbyte:
+            if not self._mCharSetProbers:
+                self._mCharSetProbers = [MBCSGroupProber(), SBCSGroupProber(),
+                                         Latin1Prober()]
+            for prober in self._mCharSetProbers:
+                if prober.feed(aBuf) == constants.eFoundIt:
+                    self.result = {'encoding': prober.get_charset_name(),
+                                   'confidence': prober.get_confidence()}
+                    self.done = True
+                    break
+
+    def close(self):
+        if self.done:
+            return
+        if not self._mGotData:
+            if constants._debug:
+                sys.stderr.write('no data received!\n')
+            return
+        self.done = True
+
+        if self._mInputState == ePureAscii:
+            self.result = {'encoding': 'ascii', 'confidence': 1.0}
+            return self.result
+
+        if self._mInputState == eHighbyte:
+            proberConfidence = None
+            maxProberConfidence = 0.0
+            maxProber = None
+            for prober in self._mCharSetProbers:
+                if not prober:
+                    continue
+                proberConfidence = prober.get_confidence()
+                if proberConfidence > maxProberConfidence:
+                    maxProberConfidence = proberConfidence
+                    maxProber = prober
+            if maxProber and (maxProberConfidence > MINIMUM_THRESHOLD):
+                self.result = {'encoding': maxProber.get_charset_name(),
+                               'confidence': maxProber.get_confidence()}
+                return self.result
+
+        if constants._debug:
+            sys.stderr.write('no probers hit minimum threshhold\n')
+            for prober in self._mCharSetProbers[0].mProbers:
+                if not prober:
+                    continue
+                sys.stderr.write('%s confidence = %s\n' %
+                                 (prober.get_charset_name(),
+                                  prober.get_confidence()))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py
new file mode 100644
index 0000000..1c0bb5d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/chardet/utf8prober.py
@@ -0,0 +1,76 @@
+######################## BEGIN LICENSE BLOCK ########################
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is
+# Netscape Communications Corporation.
+# Portions created by the Initial Developer are Copyright (C) 1998
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Mark Pilgrim - port to Python
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+from . import constants
+from .charsetprober import CharSetProber
+from .codingstatemachine import CodingStateMachine
+from .mbcssm import UTF8SMModel
+
+ONE_CHAR_PROB = 0.5
+
+
+class UTF8Prober(CharSetProber):
+    def __init__(self):
+        CharSetProber.__init__(self)
+        self._mCodingSM = CodingStateMachine(UTF8SMModel)
+        self.reset()
+
+    def reset(self):
+        CharSetProber.reset(self)
+        self._mCodingSM.reset()
+        self._mNumOfMBChar = 0
+
+    def get_charset_name(self):
+        return "utf-8"
+
+    def feed(self, aBuf):
+        for c in aBuf:
+            codingState = self._mCodingSM.next_state(c)
+            if codingState == constants.eError:
+                self._mState = constants.eNotMe
+                break
+            elif codingState == constants.eItsMe:
+                self._mState = constants.eFoundIt
+                break
+            elif codingState == constants.eStart:
+                if self._mCodingSM.get_current_charlen() >= 2:
+                    self._mNumOfMBChar += 1
+
+        if self.get_state() == constants.eDetecting:
+            if self.get_confidence() > constants.SHORTCUT_THRESHOLD:
+                self._mState = constants.eFoundIt
+
+        return self.get_state()
+
+    def get_confidence(self):
+        unlike = 0.99
+        if self._mNumOfMBChar < 6:
+            for i in range(0, self._mNumOfMBChar):
+                unlike = unlike * ONE_CHAR_PROB
+            return 1.0 - unlike
+        else:
+            return unlike
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py
new file mode 100644
index 0000000..c353674
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/__init__.py
@@ -0,0 +1,96 @@
+"""
+urllib3 - Thread-safe connection pooling and re-using.
+"""
+
+from __future__ import absolute_import
+import warnings
+
+from .connectionpool import (
+    HTTPConnectionPool,
+    HTTPSConnectionPool,
+    connection_from_url
+)
+
+from . import exceptions
+from .filepost import encode_multipart_formdata
+from .poolmanager import PoolManager, ProxyManager, proxy_from_url
+from .response import HTTPResponse
+from .util.request import make_headers
+from .util.url import get_host
+from .util.timeout import Timeout
+from .util.retry import Retry
+
+
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+__author__ = 'Andrey Petrov (andrey.petrov@shazow.net)'
+__license__ = 'MIT'
+__version__ = '1.16'
+
+__all__ = (
+    'HTTPConnectionPool',
+    'HTTPSConnectionPool',
+    'PoolManager',
+    'ProxyManager',
+    'HTTPResponse',
+    'Retry',
+    'Timeout',
+    'add_stderr_logger',
+    'connection_from_url',
+    'disable_warnings',
+    'encode_multipart_formdata',
+    'get_host',
+    'make_headers',
+    'proxy_from_url',
+)
+
+logging.getLogger(__name__).addHandler(NullHandler())
+
+
+def add_stderr_logger(level=logging.DEBUG):
+    """
+    Helper for quickly adding a StreamHandler to the logger. Useful for
+    debugging.
+
+    Returns the handler after adding it.
+    """
+    # This method needs to be in this __init__.py to get the __name__ correct
+    # even if urllib3 is vendored within another package.
+    logger = logging.getLogger(__name__)
+    handler = logging.StreamHandler()
+    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
+    logger.addHandler(handler)
+    logger.setLevel(level)
+    logger.debug('Added a stderr logging handler to logger: %s', __name__)
+    return handler
+
+# ... Clean up.
+del NullHandler
+
+
+# All warning filters *must* be appended unless you're really certain that they
+# shouldn't be: otherwise, it's very hard for users to use most Python
+# mechanisms to silence them.
+# SecurityWarning's always go off by default.
+warnings.simplefilter('always', exceptions.SecurityWarning, append=True)
+# SubjectAltNameWarning's should go off once per host
+warnings.simplefilter('default', exceptions.SubjectAltNameWarning, append=True)
+# InsecurePlatformWarning's don't vary between requests, so we keep it default.
+warnings.simplefilter('default', exceptions.InsecurePlatformWarning,
+                      append=True)
+# SNIMissingWarnings should go off only once.
+warnings.simplefilter('default', exceptions.SNIMissingWarning, append=True)
+
+
+def disable_warnings(category=exceptions.HTTPWarning):
+    """
+    Helper for quickly disabling all urllib3 warnings.
+    """
+    warnings.simplefilter('ignore', category)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py
new file mode 100644
index 0000000..77cee01
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/_collections.py
@@ -0,0 +1,324 @@
+from __future__ import absolute_import
+from collections import Mapping, MutableMapping
+try:
+    from threading import RLock
+except ImportError:  # Platform-specific: No threads available
+    class RLock:
+        def __enter__(self):
+            pass
+
+        def __exit__(self, exc_type, exc_value, traceback):
+            pass
+
+
+try:  # Python 2.7+
+    from collections import OrderedDict
+except ImportError:
+    from .packages.ordered_dict import OrderedDict
+from .packages.six import iterkeys, itervalues, PY3
+
+
+__all__ = ['RecentlyUsedContainer', 'HTTPHeaderDict']
+
+
+_Null = object()
+
+
+class RecentlyUsedContainer(MutableMapping):
+    """
+    Provides a thread-safe dict-like container which maintains up to
+    ``maxsize`` keys while throwing away the least-recently-used keys beyond
+    ``maxsize``.
+
+    :param maxsize:
+        Maximum number of recent elements to retain.
+
+    :param dispose_func:
+        Every time an item is evicted from the container,
+        ``dispose_func(value)`` is called.  Callback which will get called
+    """
+
+    ContainerCls = OrderedDict
+
+    def __init__(self, maxsize=10, dispose_func=None):
+        self._maxsize = maxsize
+        self.dispose_func = dispose_func
+
+        self._container = self.ContainerCls()
+        self.lock = RLock()
+
+    def __getitem__(self, key):
+        # Re-insert the item, moving it to the end of the eviction line.
+        with self.lock:
+            item = self._container.pop(key)
+            self._container[key] = item
+            return item
+
+    def __setitem__(self, key, value):
+        evicted_value = _Null
+        with self.lock:
+            # Possibly evict the existing value of 'key'
+            evicted_value = self._container.get(key, _Null)
+            self._container[key] = value
+
+            # If we didn't evict an existing value, we might have to evict the
+            # least recently used item from the beginning of the container.
+            if len(self._container) > self._maxsize:
+                _key, evicted_value = self._container.popitem(last=False)
+
+        if self.dispose_func and evicted_value is not _Null:
+            self.dispose_func(evicted_value)
+
+    def __delitem__(self, key):
+        with self.lock:
+            value = self._container.pop(key)
+
+        if self.dispose_func:
+            self.dispose_func(value)
+
+    def __len__(self):
+        with self.lock:
+            return len(self._container)
+
+    def __iter__(self):
+        raise NotImplementedError('Iteration over this class is unlikely to be threadsafe.')
+
+    def clear(self):
+        with self.lock:
+            # Copy pointers to all values, then wipe the mapping
+            values = list(itervalues(self._container))
+            self._container.clear()
+
+        if self.dispose_func:
+            for value in values:
+                self.dispose_func(value)
+
+    def keys(self):
+        with self.lock:
+            return list(iterkeys(self._container))
+
+
+class HTTPHeaderDict(MutableMapping):
+    """
+    :param headers:
+        An iterable of field-value pairs. Must not contain multiple field names
+        when compared case-insensitively.
+
+    :param kwargs:
+        Additional field-value pairs to pass in to ``dict.update``.
+
+    A ``dict`` like container for storing HTTP Headers.
+
+    Field names are stored and compared case-insensitively in compliance with
+    RFC 7230. Iteration provides the first case-sensitive key seen for each
+    case-insensitive pair.
+
+    Using ``__setitem__`` syntax overwrites fields that compare equal
+    case-insensitively in order to maintain ``dict``'s api. For fields that
+    compare equal, instead create a new ``HTTPHeaderDict`` and use ``.add``
+    in a loop.
+
+    If multiple fields that are equal case-insensitively are passed to the
+    constructor or ``.update``, the behavior is undefined and some will be
+    lost.
+
+    >>> headers = HTTPHeaderDict()
+    >>> headers.add('Set-Cookie', 'foo=bar')
+    >>> headers.add('set-cookie', 'baz=quxx')
+    >>> headers['content-length'] = '7'
+    >>> headers['SET-cookie']
+    'foo=bar, baz=quxx'
+    >>> headers['Content-Length']
+    '7'
+    """
+
+    def __init__(self, headers=None, **kwargs):
+        super(HTTPHeaderDict, self).__init__()
+        self._container = OrderedDict()
+        if headers is not None:
+            if isinstance(headers, HTTPHeaderDict):
+                self._copy_from(headers)
+            else:
+                self.extend(headers)
+        if kwargs:
+            self.extend(kwargs)
+
+    def __setitem__(self, key, val):
+        self._container[key.lower()] = (key, val)
+        return self._container[key.lower()]
+
+    def __getitem__(self, key):
+        val = self._container[key.lower()]
+        return ', '.join(val[1:])
+
+    def __delitem__(self, key):
+        del self._container[key.lower()]
+
+    def __contains__(self, key):
+        return key.lower() in self._container
+
+    def __eq__(self, other):
+        if not isinstance(other, Mapping) and not hasattr(other, 'keys'):
+            return False
+        if not isinstance(other, type(self)):
+            other = type(self)(other)
+        return (dict((k.lower(), v) for k, v in self.itermerged()) ==
+                dict((k.lower(), v) for k, v in other.itermerged()))
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    if not PY3:  # Python 2
+        iterkeys = MutableMapping.iterkeys
+        itervalues = MutableMapping.itervalues
+
+    __marker = object()
+
+    def __len__(self):
+        return len(self._container)
+
+    def __iter__(self):
+        # Only provide the originally cased names
+        for vals in self._container.values():
+            yield vals[0]
+
+    def pop(self, key, default=__marker):
+        '''D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+          If key is not found, d is returned if given, otherwise KeyError is raised.
+        '''
+        # Using the MutableMapping function directly fails due to the private marker.
+        # Using ordinary dict.pop would expose the internal structures.
+        # So let's reinvent the wheel.
+        try:
+            value = self[key]
+        except KeyError:
+            if default is self.__marker:
+                raise
+            return default
+        else:
+            del self[key]
+            return value
+
+    def discard(self, key):
+        try:
+            del self[key]
+        except KeyError:
+            pass
+
+    def add(self, key, val):
+        """Adds a (name, value) pair, doesn't overwrite the value if it already
+        exists.
+
+        >>> headers = HTTPHeaderDict(foo='bar')
+        >>> headers.add('Foo', 'baz')
+        >>> headers['foo']
+        'bar, baz'
+        """
+        key_lower = key.lower()
+        new_vals = key, val
+        # Keep the common case aka no item present as fast as possible
+        vals = self._container.setdefault(key_lower, new_vals)
+        if new_vals is not vals:
+            # new_vals was not inserted, as there was a previous one
+            if isinstance(vals, list):
+                # If already several items got inserted, we have a list
+                vals.append(val)
+            else:
+                # vals should be a tuple then, i.e. only one item so far
+                # Need to convert the tuple to list for further extension
+                self._container[key_lower] = [vals[0], vals[1], val]
+
+    def extend(self, *args, **kwargs):
+        """Generic import function for any type of header-like object.
+        Adapted version of MutableMapping.update in order to insert items
+        with self.add instead of self.__setitem__
+        """
+        if len(args) > 1:
+            raise TypeError("extend() takes at most 1 positional "
+                            "arguments ({0} given)".format(len(args)))
+        other = args[0] if len(args) >= 1 else ()
+
+        if isinstance(other, HTTPHeaderDict):
+            for key, val in other.iteritems():
+                self.add(key, val)
+        elif isinstance(other, Mapping):
+            for key in other:
+                self.add(key, other[key])
+        elif hasattr(other, "keys"):
+            for key in other.keys():
+                self.add(key, other[key])
+        else:
+            for key, value in other:
+                self.add(key, value)
+
+        for key, value in kwargs.items():
+            self.add(key, value)
+
+    def getlist(self, key):
+        """Returns a list of all the values for the named field. Returns an
+        empty list if the key doesn't exist."""
+        try:
+            vals = self._container[key.lower()]
+        except KeyError:
+            return []
+        else:
+            if isinstance(vals, tuple):
+                return [vals[1]]
+            else:
+                return vals[1:]
+
+    # Backwards compatibility for httplib
+    getheaders = getlist
+    getallmatchingheaders = getlist
+    iget = getlist
+
+    def __repr__(self):
+        return "%s(%s)" % (type(self).__name__, dict(self.itermerged()))
+
+    def _copy_from(self, other):
+        for key in other:
+            val = other.getlist(key)
+            if isinstance(val, list):
+                # Don't need to convert tuples
+                val = list(val)
+            self._container[key.lower()] = [key] + val
+
+    def copy(self):
+        clone = type(self)()
+        clone._copy_from(self)
+        return clone
+
+    def iteritems(self):
+        """Iterate over all header lines, including duplicate ones."""
+        for key in self:
+            vals = self._container[key.lower()]
+            for val in vals[1:]:
+                yield vals[0], val
+
+    def itermerged(self):
+        """Iterate over all headers, merging duplicate ones together."""
+        for key in self:
+            val = self._container[key.lower()]
+            yield val[0], ', '.join(val[1:])
+
+    def items(self):
+        return list(self.iteritems())
+
+    @classmethod
+    def from_httplib(cls, message):  # Python 2
+        """Read headers from a Python 2 httplib message object."""
+        # python2.7 does not expose a proper API for exporting multiheaders
+        # efficiently. This function re-reads raw lines from the message
+        # object and extracts the multiheaders properly.
+        headers = []
+
+        for line in message.headers:
+            if line.startswith((' ', '\t')):
+                key, value = headers[-1]
+                headers[-1] = (key, value + '\r\n' + line.rstrip())
+                continue
+
+            key, value = line.split(':', 1)
+            headers.append((key, value.strip()))
+
+        return cls(headers)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py
new file mode 100644
index 0000000..5ce0080
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connection.py
@@ -0,0 +1,330 @@
+from __future__ import absolute_import
+import datetime
+import logging
+import os
+import sys
+import socket
+from socket import error as SocketError, timeout as SocketTimeout
+import warnings
+from .packages import six
+
+try:  # Python 3
+    from http.client import HTTPConnection as _HTTPConnection
+    from http.client import HTTPException  # noqa: unused in this module
+except ImportError:
+    from httplib import HTTPConnection as _HTTPConnection
+    from httplib import HTTPException  # noqa: unused in this module
+
+try:  # Compiled with SSL?
+    import ssl
+    BaseSSLError = ssl.SSLError
+except (ImportError, AttributeError):  # Platform-specific: No SSL.
+    ssl = None
+
+    class BaseSSLError(BaseException):
+        pass
+
+
+try:  # Python 3:
+    # Not a no-op, we're adding this to the namespace so it can be imported.
+    ConnectionError = ConnectionError
+except NameError:  # Python 2:
+    class ConnectionError(Exception):
+        pass
+
+
+from .exceptions import (
+    NewConnectionError,
+    ConnectTimeoutError,
+    SubjectAltNameWarning,
+    SystemTimeWarning,
+)
+from .packages.ssl_match_hostname import match_hostname, CertificateError
+
+from .util.ssl_ import (
+    resolve_cert_reqs,
+    resolve_ssl_version,
+    ssl_wrap_socket,
+    assert_fingerprint,
+)
+
+
+from .util import connection
+
+from ._collections import HTTPHeaderDict
+
+log = logging.getLogger(__name__)
+
+port_by_scheme = {
+    'http': 80,
+    'https': 443,
+}
+
+RECENT_DATE = datetime.date(2014, 1, 1)
+
+
+class DummyConnection(object):
+    """Used to detect a failed ConnectionCls import."""
+    pass
+
+
+class HTTPConnection(_HTTPConnection, object):
+    """
+    Based on httplib.HTTPConnection but provides an extra constructor
+    backwards-compatibility layer between older and newer Pythons.
+
+    Additional keyword parameters are used to configure attributes of the connection.
+    Accepted parameters include:
+
+      - ``strict``: See the documentation on :class:`urllib3.connectionpool.HTTPConnectionPool`
+      - ``source_address``: Set the source address for the current connection.
+
+        .. note:: This is ignored for Python 2.6. It is only applied for 2.7 and 3.x
+
+      - ``socket_options``: Set specific options on the underlying socket. If not specified, then
+        defaults are loaded from ``HTTPConnection.default_socket_options`` which includes disabling
+        Nagle's algorithm (sets TCP_NODELAY to 1) unless the connection is behind a proxy.
+
+        For example, if you wish to enable TCP Keep Alive in addition to the defaults,
+        you might pass::
+
+            HTTPConnection.default_socket_options + [
+                (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),
+            ]
+
+        Or you may want to disable the defaults by passing an empty list (e.g., ``[]``).
+    """
+
+    default_port = port_by_scheme['http']
+
+    #: Disable Nagle's algorithm by default.
+    #: ``[(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]``
+    default_socket_options = [(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]
+
+    #: Whether this connection verifies the host's certificate.
+    is_verified = False
+
+    def __init__(self, *args, **kw):
+        if six.PY3:  # Python 3
+            kw.pop('strict', None)
+
+        # Pre-set source_address in case we have an older Python like 2.6.
+        self.source_address = kw.get('source_address')
+
+        if sys.version_info < (2, 7):  # Python 2.6
+            # _HTTPConnection on Python 2.6 will balk at this keyword arg, but
+            # not newer versions. We can still use it when creating a
+            # connection though, so we pop it *after* we have saved it as
+            # self.source_address.
+            kw.pop('source_address', None)
+
+        #: The socket options provided by the user. If no options are
+        #: provided, we use the default options.
+        self.socket_options = kw.pop('socket_options', self.default_socket_options)
+
+        # Superclass also sets self.source_address in Python 2.7+.
+        _HTTPConnection.__init__(self, *args, **kw)
+
+    def _new_conn(self):
+        """ Establish a socket connection and set nodelay settings on it.
+
+        :return: New socket connection.
+        """
+        extra_kw = {}
+        if self.source_address:
+            extra_kw['source_address'] = self.source_address
+
+        if self.socket_options:
+            extra_kw['socket_options'] = self.socket_options
+
+        try:
+            conn = connection.create_connection(
+                (self.host, self.port), self.timeout, **extra_kw)
+
+        except SocketTimeout as e:
+            raise ConnectTimeoutError(
+                self, "Connection to %s timed out. (connect timeout=%s)" %
+                (self.host, self.timeout))
+
+        except SocketError as e:
+            raise NewConnectionError(
+                self, "Failed to establish a new connection: %s" % e)
+
+        return conn
+
+    def _prepare_conn(self, conn):
+        self.sock = conn
+        # the _tunnel_host attribute was added in python 2.6.3 (via
+        # http://hg.python.org/cpython/rev/0f57b30a152f) so pythons 2.6(0-2) do
+        # not have them.
+        if getattr(self, '_tunnel_host', None):
+            # TODO: Fix tunnel so it doesn't depend on self.sock state.
+            self._tunnel()
+            # Mark this connection as not reusable
+            self.auto_open = 0
+
+    def connect(self):
+        conn = self._new_conn()
+        self._prepare_conn(conn)
+
+    def request_chunked(self, method, url, body=None, headers=None):
+        """
+        Alternative to the common request method, which sends the
+        body with chunked encoding and not as one block
+        """
+        headers = HTTPHeaderDict(headers if headers is not None else {})
+        skip_accept_encoding = 'accept-encoding' in headers
+        self.putrequest(method, url, skip_accept_encoding=skip_accept_encoding)
+        for header, value in headers.items():
+            self.putheader(header, value)
+        if 'transfer-encoding' not in headers:
+            self.putheader('Transfer-Encoding', 'chunked')
+        self.endheaders()
+
+        if body is not None:
+            stringish_types = six.string_types + (six.binary_type,)
+            if isinstance(body, stringish_types):
+                body = (body,)
+            for chunk in body:
+                if not chunk:
+                    continue
+                if not isinstance(chunk, six.binary_type):
+                    chunk = chunk.encode('utf8')
+                len_str = hex(len(chunk))[2:]
+                self.send(len_str.encode('utf-8'))
+                self.send(b'\r\n')
+                self.send(chunk)
+                self.send(b'\r\n')
+
+        # After the if clause, to always have a closed body
+        self.send(b'0\r\n\r\n')
+
+
+class HTTPSConnection(HTTPConnection):
+    default_port = port_by_scheme['https']
+
+    def __init__(self, host, port=None, key_file=None, cert_file=None,
+                 strict=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, **kw):
+
+        HTTPConnection.__init__(self, host, port, strict=strict,
+                                timeout=timeout, **kw)
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+
+        # Required property for Google AppEngine 1.9.0 which otherwise causes
+        # HTTPS requests to go out as HTTP. (See Issue #356)
+        self._protocol = 'https'
+
+    def connect(self):
+        conn = self._new_conn()
+        self._prepare_conn(conn)
+        self.sock = ssl.wrap_socket(conn, self.key_file, self.cert_file)
+
+
+class VerifiedHTTPSConnection(HTTPSConnection):
+    """
+    Based on httplib.HTTPSConnection but wraps the socket with
+    SSL certification.
+    """
+    cert_reqs = None
+    ca_certs = None
+    ca_cert_dir = None
+    ssl_version = None
+    assert_fingerprint = None
+
+    def set_cert(self, key_file=None, cert_file=None,
+                 cert_reqs=None, ca_certs=None,
+                 assert_hostname=None, assert_fingerprint=None,
+                 ca_cert_dir=None):
+
+        if (ca_certs or ca_cert_dir) and cert_reqs is None:
+            cert_reqs = 'CERT_REQUIRED'
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+        self.cert_reqs = cert_reqs
+        self.assert_hostname = assert_hostname
+        self.assert_fingerprint = assert_fingerprint
+        self.ca_certs = ca_certs and os.path.expanduser(ca_certs)
+        self.ca_cert_dir = ca_cert_dir and os.path.expanduser(ca_cert_dir)
+
+    def connect(self):
+        # Add certificate verification
+        conn = self._new_conn()
+
+        resolved_cert_reqs = resolve_cert_reqs(self.cert_reqs)
+        resolved_ssl_version = resolve_ssl_version(self.ssl_version)
+
+        hostname = self.host
+        if getattr(self, '_tunnel_host', None):
+            # _tunnel_host was added in Python 2.6.3
+            # (See: http://hg.python.org/cpython/rev/0f57b30a152f)
+
+            self.sock = conn
+            # Calls self._set_hostport(), so self.host is
+            # self._tunnel_host below.
+            self._tunnel()
+            # Mark this connection as not reusable
+            self.auto_open = 0
+
+            # Override the host with the one we're requesting data from.
+            hostname = self._tunnel_host
+
+        is_time_off = datetime.date.today() < RECENT_DATE
+        if is_time_off:
+            warnings.warn((
+                'System time is way off (before {0}). This will probably '
+                'lead to SSL verification errors').format(RECENT_DATE),
+                SystemTimeWarning
+            )
+
+        # Wrap socket using verification with the root certs in
+        # trusted_root_certs
+        self.sock = ssl_wrap_socket(conn, self.key_file, self.cert_file,
+                                    cert_reqs=resolved_cert_reqs,
+                                    ca_certs=self.ca_certs,
+                                    ca_cert_dir=self.ca_cert_dir,
+                                    server_hostname=hostname,
+                                    ssl_version=resolved_ssl_version)
+
+        if self.assert_fingerprint:
+            assert_fingerprint(self.sock.getpeercert(binary_form=True),
+                               self.assert_fingerprint)
+        elif resolved_cert_reqs != ssl.CERT_NONE \
+                and self.assert_hostname is not False:
+            cert = self.sock.getpeercert()
+            if not cert.get('subjectAltName', ()):
+                warnings.warn((
+                    'Certificate for {0} has no `subjectAltName`, falling back to check for a '
+                    '`commonName` for now. This feature is being removed by major browsers and '
+                    'deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 '
+                    'for details.)'.format(hostname)),
+                    SubjectAltNameWarning
+                )
+            _match_hostname(cert, self.assert_hostname or hostname)
+
+        self.is_verified = (resolved_cert_reqs == ssl.CERT_REQUIRED or
+                            self.assert_fingerprint is not None)
+
+
+def _match_hostname(cert, asserted_hostname):
+    try:
+        match_hostname(cert, asserted_hostname)
+    except CertificateError as e:
+        log.error(
+            'Certificate did not match expected hostname: %s. '
+            'Certificate: %s', asserted_hostname, cert
+        )
+        # Add cert to exception and reraise so client code can inspect
+        # the cert when catching the exception, if they want to
+        e._peer_cert = cert
+        raise
+
+
+if ssl:
+    # Make a copy for testing.
+    UnverifiedHTTPSConnection = HTTPSConnection
+    HTTPSConnection = VerifiedHTTPSConnection
+else:
+    HTTPSConnection = DummyConnection
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py
new file mode 100644
index 0000000..ab634cb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/connectionpool.py
@@ -0,0 +1,866 @@
+from __future__ import absolute_import
+import errno
+import logging
+import sys
+import warnings
+
+from socket import error as SocketError, timeout as SocketTimeout
+import socket
+
+try:  # Python 3
+    from queue import LifoQueue, Empty, Full
+except ImportError:
+    from Queue import LifoQueue, Empty, Full
+    # Queue is imported for side effects on MS Windows
+    import Queue as _unused_module_Queue  # noqa: unused
+
+
+from .exceptions import (
+    ClosedPoolError,
+    ProtocolError,
+    EmptyPoolError,
+    HeaderParsingError,
+    HostChangedError,
+    LocationValueError,
+    MaxRetryError,
+    ProxyError,
+    ReadTimeoutError,
+    SSLError,
+    TimeoutError,
+    InsecureRequestWarning,
+    NewConnectionError,
+)
+from .packages.ssl_match_hostname import CertificateError
+from .packages import six
+from .connection import (
+    port_by_scheme,
+    DummyConnection,
+    HTTPConnection, HTTPSConnection, VerifiedHTTPSConnection,
+    HTTPException, BaseSSLError,
+)
+from .request import RequestMethods
+from .response import HTTPResponse
+
+from .util.connection import is_connection_dropped
+from .util.response import assert_header_parsing
+from .util.retry import Retry
+from .util.timeout import Timeout
+from .util.url import get_host, Url
+
+
+xrange = six.moves.xrange
+
+log = logging.getLogger(__name__)
+
+_Default = object()
+
+
+# Pool objects
+class ConnectionPool(object):
+    """
+    Base class for all connection pools, such as
+    :class:`.HTTPConnectionPool` and :class:`.HTTPSConnectionPool`.
+    """
+
+    scheme = None
+    QueueCls = LifoQueue
+
+    def __init__(self, host, port=None):
+        if not host:
+            raise LocationValueError("No host specified.")
+
+        # httplib doesn't like it when we include brackets in ipv6 addresses
+        # Specifically, if we include brackets but also pass the port then
+        # httplib crazily doubles up the square brackets on the Host header.
+        # Instead, we need to make sure we never pass ``None`` as the port.
+        # However, for backward compatibility reasons we can't actually
+        # *assert* that.
+        self.host = host.strip('[]')
+        self.port = port
+
+    def __str__(self):
+        return '%s(host=%r, port=%r)' % (type(self).__name__,
+                                         self.host, self.port)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.close()
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def close(self):
+        """
+        Close all pooled connections and disable the pool.
+        """
+        pass
+
+
+# This is taken from http://hg.python.org/cpython/file/7aaba721ebc0/Lib/socket.py#l252
+_blocking_errnos = set([errno.EAGAIN, errno.EWOULDBLOCK])
+
+
+class HTTPConnectionPool(ConnectionPool, RequestMethods):
+    """
+    Thread-safe connection pool for one host.
+
+    :param host:
+        Host used for this HTTP Connection (e.g. "localhost"), passed into
+        :class:`httplib.HTTPConnection`.
+
+    :param port:
+        Port used for this HTTP Connection (None is equivalent to 80), passed
+        into :class:`httplib.HTTPConnection`.
+
+    :param strict:
+        Causes BadStatusLine to be raised if the status line can't be parsed
+        as a valid HTTP/1.0 or 1.1 status line, passed into
+        :class:`httplib.HTTPConnection`.
+
+        .. note::
+           Only works in Python 2. This parameter is ignored in Python 3.
+
+    :param timeout:
+        Socket timeout in seconds for each individual connection. This can
+        be a float or integer, which sets the timeout for the HTTP request,
+        or an instance of :class:`urllib3.util.Timeout` which gives you more
+        fine-grained control over request timeouts. After the constructor has
+        been parsed, this is always a `urllib3.util.Timeout` object.
+
+    :param maxsize:
+        Number of connections to save that can be reused. More than 1 is useful
+        in multithreaded situations. If ``block`` is set to False, more
+        connections will be created but they will not be saved once they've
+        been used.
+
+    :param block:
+        If set to True, no more than ``maxsize`` connections will be used at
+        a time. When no free connections are available, the call will block
+        until a connection has been released. This is a useful side effect for
+        particular multithreaded situations where one does not want to use more
+        than maxsize connections per host to prevent flooding.
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+
+    :param retries:
+        Retry configuration to use by default with requests in this pool.
+
+    :param _proxy:
+        Parsed proxy URL, should not be used directly, instead, see
+        :class:`urllib3.connectionpool.ProxyManager`"
+
+    :param _proxy_headers:
+        A dictionary with proxy headers, should not be used directly,
+        instead, see :class:`urllib3.connectionpool.ProxyManager`"
+
+    :param \**conn_kw:
+        Additional parameters are used to create fresh :class:`urllib3.connection.HTTPConnection`,
+        :class:`urllib3.connection.HTTPSConnection` instances.
+    """
+
+    scheme = 'http'
+    ConnectionCls = HTTPConnection
+    ResponseCls = HTTPResponse
+
+    def __init__(self, host, port=None, strict=False,
+                 timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1, block=False,
+                 headers=None, retries=None,
+                 _proxy=None, _proxy_headers=None,
+                 **conn_kw):
+        ConnectionPool.__init__(self, host, port)
+        RequestMethods.__init__(self, headers)
+
+        self.strict = strict
+
+        if not isinstance(timeout, Timeout):
+            timeout = Timeout.from_float(timeout)
+
+        if retries is None:
+            retries = Retry.DEFAULT
+
+        self.timeout = timeout
+        self.retries = retries
+
+        self.pool = self.QueueCls(maxsize)
+        self.block = block
+
+        self.proxy = _proxy
+        self.proxy_headers = _proxy_headers or {}
+
+        # Fill the queue up so that doing get() on it will block properly
+        for _ in xrange(maxsize):
+            self.pool.put(None)
+
+        # These are mostly for testing and debugging purposes.
+        self.num_connections = 0
+        self.num_requests = 0
+        self.conn_kw = conn_kw
+
+        if self.proxy:
+            # Enable Nagle's algorithm for proxies, to avoid packet fragmentation.
+            # We cannot know if the user has added default socket options, so we cannot replace the
+            # list.
+            self.conn_kw.setdefault('socket_options', [])
+
+    def _new_conn(self):
+        """
+        Return a fresh :class:`HTTPConnection`.
+        """
+        self.num_connections += 1
+        log.info("Starting new HTTP connection (%d): %s",
+                 self.num_connections, self.host)
+
+        conn = self.ConnectionCls(host=self.host, port=self.port,
+                                  timeout=self.timeout.connect_timeout,
+                                  strict=self.strict, **self.conn_kw)
+        return conn
+
+    def _get_conn(self, timeout=None):
+        """
+        Get a connection. Will return a pooled connection if one is available.
+
+        If no connections are available and :prop:`.block` is ``False``, then a
+        fresh connection is returned.
+
+        :param timeout:
+            Seconds to wait before giving up and raising
+            :class:`urllib3.exceptions.EmptyPoolError` if the pool is empty and
+            :prop:`.block` is ``True``.
+        """
+        conn = None
+        try:
+            conn = self.pool.get(block=self.block, timeout=timeout)
+
+        except AttributeError:  # self.pool is None
+            raise ClosedPoolError(self, "Pool is closed.")
+
+        except Empty:
+            if self.block:
+                raise EmptyPoolError(self,
+                                     "Pool reached maximum size and no more "
+                                     "connections are allowed.")
+            pass  # Oh well, we'll create a new connection then
+
+        # If this is a persistent connection, check if it got disconnected
+        if conn and is_connection_dropped(conn):
+            log.info("Resetting dropped connection: %s", self.host)
+            conn.close()
+            if getattr(conn, 'auto_open', 1) == 0:
+                # This is a proxied connection that has been mutated by
+                # httplib._tunnel() and cannot be reused (since it would
+                # attempt to bypass the proxy)
+                conn = None
+
+        return conn or self._new_conn()
+
+    def _put_conn(self, conn):
+        """
+        Put a connection back into the pool.
+
+        :param conn:
+            Connection object for the current host and port as returned by
+            :meth:`._new_conn` or :meth:`._get_conn`.
+
+        If the pool is already full, the connection is closed and discarded
+        because we exceeded maxsize. If connections are discarded frequently,
+        then maxsize should be increased.
+
+        If the pool is closed, then the connection will be closed and discarded.
+        """
+        try:
+            self.pool.put(conn, block=False)
+            return  # Everything is dandy, done.
+        except AttributeError:
+            # self.pool is None.
+            pass
+        except Full:
+            # This should never happen if self.block == True
+            log.warning(
+                "Connection pool is full, discarding connection: %s",
+                self.host)
+
+        # Connection never got put back into the pool, close it.
+        if conn:
+            conn.close()
+
+    def _validate_conn(self, conn):
+        """
+        Called right before a request is made, after the socket is created.
+        """
+        pass
+
+    def _prepare_proxy(self, conn):
+        # Nothing to do for HTTP connections.
+        pass
+
+    def _get_timeout(self, timeout):
+        """ Helper that always returns a :class:`urllib3.util.Timeout` """
+        if timeout is _Default:
+            return self.timeout.clone()
+
+        if isinstance(timeout, Timeout):
+            return timeout.clone()
+        else:
+            # User passed us an int/float. This is for backwards compatibility,
+            # can be removed later
+            return Timeout.from_float(timeout)
+
+    def _raise_timeout(self, err, url, timeout_value):
+        """Is the error actually a timeout? Will raise a ReadTimeout or pass"""
+
+        if isinstance(err, SocketTimeout):
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+        # See the above comment about EAGAIN in Python 3. In Python 2 we have
+        # to specifically catch it and throw the timeout error
+        if hasattr(err, 'errno') and err.errno in _blocking_errnos:
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+        # Catch possible read timeouts thrown as SSL errors. If not the
+        # case, rethrow the original. We need to do this because of:
+        # http://bugs.python.org/issue10272
+        if 'timed out' in str(err) or 'did not complete (read)' in str(err):  # Python 2.6
+            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
+
+    def _make_request(self, conn, method, url, timeout=_Default, chunked=False,
+                      **httplib_request_kw):
+        """
+        Perform a request on a given urllib connection object taken from our
+        pool.
+
+        :param conn:
+            a connection from one of our connection pools
+
+        :param timeout:
+            Socket timeout in seconds for the request. This can be a
+            float or integer, which will set the same timeout value for
+            the socket connect and the socket read, or an instance of
+            :class:`urllib3.util.Timeout`, which gives you more fine-grained
+            control over your timeouts.
+        """
+        self.num_requests += 1
+
+        timeout_obj = self._get_timeout(timeout)
+        timeout_obj.start_connect()
+        conn.timeout = timeout_obj.connect_timeout
+
+        # Trigger any extra validation we need to do.
+        try:
+            self._validate_conn(conn)
+        except (SocketTimeout, BaseSSLError) as e:
+            # Py2 raises this as a BaseSSLError, Py3 raises it as socket timeout.
+            self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
+            raise
+
+        # conn.request() calls httplib.*.request, not the method in
+        # urllib3.request. It also calls makefile (recv) on the socket.
+        if chunked:
+            conn.request_chunked(method, url, **httplib_request_kw)
+        else:
+            conn.request(method, url, **httplib_request_kw)
+
+        # Reset the timeout for the recv() on the socket
+        read_timeout = timeout_obj.read_timeout
+
+        # App Engine doesn't have a sock attr
+        if getattr(conn, 'sock', None):
+            # In Python 3 socket.py will catch EAGAIN and return None when you
+            # try and read into the file pointer created by http.client, which
+            # instead raises a BadStatusLine exception. Instead of catching
+            # the exception and assuming all BadStatusLine exceptions are read
+            # timeouts, check for a zero timeout before making the request.
+            if read_timeout == 0:
+                raise ReadTimeoutError(
+                    self, url, "Read timed out. (read timeout=%s)" % read_timeout)
+            if read_timeout is Timeout.DEFAULT_TIMEOUT:
+                conn.sock.settimeout(socket.getdefaulttimeout())
+            else:  # None or a value
+                conn.sock.settimeout(read_timeout)
+
+        # Receive the response from the server
+        try:
+            try:  # Python 2.7, use buffering of HTTP responses
+                httplib_response = conn.getresponse(buffering=True)
+            except TypeError:  # Python 2.6 and older, Python 3
+                try:
+                    httplib_response = conn.getresponse()
+                except Exception as e:
+                    # Remove the TypeError from the exception chain in Python 3;
+                    # otherwise it looks like a programming error was the cause.
+                    six.raise_from(e, None)
+        except (SocketTimeout, BaseSSLError, SocketError) as e:
+            self._raise_timeout(err=e, url=url, timeout_value=read_timeout)
+            raise
+
+        # AppEngine doesn't have a version attr.
+        http_version = getattr(conn, '_http_vsn_str', 'HTTP/?')
+        log.debug("\"%s %s %s\" %s %s", method, url, http_version,
+                  httplib_response.status, httplib_response.length)
+
+        try:
+            assert_header_parsing(httplib_response.msg)
+        except HeaderParsingError as hpe:  # Platform-specific: Python 3
+            log.warning(
+                'Failed to parse headers (url=%s): %s',
+                self._absolute_url(url), hpe, exc_info=True)
+
+        return httplib_response
+
+    def _absolute_url(self, path):
+        return Url(scheme=self.scheme, host=self.host, port=self.port, path=path).url
+
+    def close(self):
+        """
+        Close all pooled connections and disable the pool.
+        """
+        # Disable access to the pool
+        old_pool, self.pool = self.pool, None
+
+        try:
+            while True:
+                conn = old_pool.get(block=False)
+                if conn:
+                    conn.close()
+
+        except Empty:
+            pass  # Done.
+
+    def is_same_host(self, url):
+        """
+        Check if the given ``url`` is a member of the same host as this
+        connection pool.
+        """
+        if url.startswith('/'):
+            return True
+
+        # TODO: Add optional support for socket.gethostbyname checking.
+        scheme, host, port = get_host(url)
+
+        # Use explicit default port for comparison when none is given
+        if self.port and not port:
+            port = port_by_scheme.get(scheme)
+        elif not self.port and port == port_by_scheme.get(scheme):
+            port = None
+
+        return (scheme, host, port) == (self.scheme, self.host, self.port)
+
+    def urlopen(self, method, url, body=None, headers=None, retries=None,
+                redirect=True, assert_same_host=True, timeout=_Default,
+                pool_timeout=None, release_conn=None, chunked=False,
+                **response_kw):
+        """
+        Get a connection from the pool and perform an HTTP request. This is the
+        lowest level call for making a request, so you'll need to specify all
+        the raw details.
+
+        .. note::
+
+           More commonly, it's appropriate to use a convenience method provided
+           by :class:`.RequestMethods`, such as :meth:`request`.
+
+        .. note::
+
+           `release_conn` will only behave as expected if
+           `preload_content=False` because we want to make
+           `preload_content=False` the default behaviour someday soon without
+           breaking backwards compatibility.
+
+        :param method:
+            HTTP request method (such as GET, POST, PUT, etc.)
+
+        :param body:
+            Data to send in the request body (useful for creating
+            POST requests, see HTTPConnectionPool.post_url for
+            more convenience).
+
+        :param headers:
+            Dictionary of custom headers to send, such as User-Agent,
+            If-None-Match, etc. If None, pool headers are used. If provided,
+            these headers completely replace any pool-specific headers.
+
+        :param retries:
+            Configure the number of retries to allow before raising a
+            :class:`~urllib3.exceptions.MaxRetryError` exception.
+
+            Pass ``None`` to retry until you receive a response. Pass a
+            :class:`~urllib3.util.retry.Retry` object for fine-grained control
+            over different types of retries.
+            Pass an integer number to retry connection errors that many times,
+            but no other types of errors. Pass zero to never retry.
+
+            If ``False``, then retries are disabled and any exception is raised
+            immediately. Also, instead of raising a MaxRetryError on redirects,
+            the redirect response will be returned.
+
+        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
+
+        :param redirect:
+            If True, automatically handle redirects (status codes 301, 302,
+            303, 307, 308). Each redirect counts as a retry. Disabling retries
+            will disable redirect, too.
+
+        :param assert_same_host:
+            If ``True``, will make sure that the host of the pool requests is
+            consistent else will raise HostChangedError. When False, you can
+            use the pool on an HTTP proxy and request foreign hosts.
+
+        :param timeout:
+            If specified, overrides the default timeout for this one
+            request. It may be a float (in seconds) or an instance of
+            :class:`urllib3.util.Timeout`.
+
+        :param pool_timeout:
+            If set and the pool is set to block=True, then this method will
+            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
+            connection is available within the time period.
+
+        :param release_conn:
+            If False, then the urlopen call will not release the connection
+            back into the pool once a response is received (but will release if
+            you read the entire contents of the response such as when
+            `preload_content=True`). This is useful if you're not preloading
+            the response's content immediately. You will need to call
+            ``r.release_conn()`` on the response ``r`` to return the connection
+            back into the pool. If None, it takes the value of
+            ``response_kw.get('preload_content', True)``.
+
+        :param chunked:
+            If True, urllib3 will send the body using chunked transfer
+            encoding. Otherwise, urllib3 will send the body using the standard
+            content-length form. Defaults to False.
+
+        :param \**response_kw:
+            Additional parameters are passed to
+            :meth:`urllib3.response.HTTPResponse.from_httplib`
+        """
+        if headers is None:
+            headers = self.headers
+
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
+
+        if release_conn is None:
+            release_conn = response_kw.get('preload_content', True)
+
+        # Check host
+        if assert_same_host and not self.is_same_host(url):
+            raise HostChangedError(self, url, retries)
+
+        conn = None
+
+        # Track whether `conn` needs to be released before
+        # returning/raising/recursing. Update this variable if necessary, and
+        # leave `release_conn` constant throughout the function. That way, if
+        # the function recurses, the original value of `release_conn` will be
+        # passed down into the recursive call, and its value will be respected.
+        #
+        # See issue #651 [1] for details.
+        #
+        # [1] <https://github.com/shazow/urllib3/issues/651>
+        release_this_conn = release_conn
+
+        # Merge the proxy headers. Only do this in HTTP. We have to copy the
+        # headers dict so we can safely change it without those changes being
+        # reflected in anyone else's copy.
+        if self.scheme == 'http':
+            headers = headers.copy()
+            headers.update(self.proxy_headers)
+
+        # Must keep the exception bound to a separate variable or else Python 3
+        # complains about UnboundLocalError.
+        err = None
+
+        # Keep track of whether we cleanly exited the except block. This
+        # ensures we do proper cleanup in finally.
+        clean_exit = False
+
+        try:
+            # Request a connection from the queue.
+            timeout_obj = self._get_timeout(timeout)
+            conn = self._get_conn(timeout=pool_timeout)
+
+            conn.timeout = timeout_obj.connect_timeout
+
+            is_new_proxy_conn = self.proxy is not None and not getattr(conn, 'sock', None)
+            if is_new_proxy_conn:
+                self._prepare_proxy(conn)
+
+            # Make the request on the httplib connection object.
+            httplib_response = self._make_request(conn, method, url,
+                                                  timeout=timeout_obj,
+                                                  body=body, headers=headers,
+                                                  chunked=chunked)
+
+            # If we're going to release the connection in ``finally:``, then
+            # the response doesn't need to know about the connection. Otherwise
+            # it will also try to release it and we'll have a double-release
+            # mess.
+            response_conn = conn if not release_conn else None
+
+            # Import httplib's response into our own wrapper object
+            response = self.ResponseCls.from_httplib(httplib_response,
+                                                     pool=self,
+                                                     connection=response_conn,
+                                                     **response_kw)
+
+            # Everything went great!
+            clean_exit = True
+
+        except Empty:
+            # Timed out by queue.
+            raise EmptyPoolError(self, "No pool connections are available.")
+
+        except (BaseSSLError, CertificateError) as e:
+            # Close the connection. If a connection is reused on which there
+            # was a Certificate error, the next request will certainly raise
+            # another Certificate error.
+            clean_exit = False
+            raise SSLError(e)
+
+        except SSLError:
+            # Treat SSLError separately from BaseSSLError to preserve
+            # traceback.
+            clean_exit = False
+            raise
+
+        except (TimeoutError, HTTPException, SocketError, ProtocolError) as e:
+            # Discard the connection for these exceptions. It will be
+            # be replaced during the next _get_conn() call.
+            clean_exit = False
+
+            if isinstance(e, (SocketError, NewConnectionError)) and self.proxy:
+                e = ProxyError('Cannot connect to proxy.', e)
+            elif isinstance(e, (SocketError, HTTPException)):
+                e = ProtocolError('Connection aborted.', e)
+
+            retries = retries.increment(method, url, error=e, _pool=self,
+                                        _stacktrace=sys.exc_info()[2])
+            retries.sleep()
+
+            # Keep track of the error for the retry warning.
+            err = e
+
+        finally:
+            if not clean_exit:
+                # We hit some kind of exception, handled or otherwise. We need
+                # to throw the connection away unless explicitly told not to.
+                # Close the connection, set the variable to None, and make sure
+                # we put the None back in the pool to avoid leaking it.
+                conn = conn and conn.close()
+                release_this_conn = True
+
+            if release_this_conn:
+                # Put the connection back to be reused. If the connection is
+                # expired then it will be None, which will get replaced with a
+                # fresh connection during _get_conn.
+                self._put_conn(conn)
+
+        if not conn:
+            # Try again
+            log.warning("Retrying (%r) after connection "
+                        "broken by '%r': %s", retries, err, url)
+            return self.urlopen(method, url, body, headers, retries,
+                                redirect, assert_same_host,
+                                timeout=timeout, pool_timeout=pool_timeout,
+                                release_conn=release_conn, **response_kw)
+
+        # Handle redirect?
+        redirect_location = redirect and response.get_redirect_location()
+        if redirect_location:
+            if response.status == 303:
+                method = 'GET'
+
+            try:
+                retries = retries.increment(method, url, response=response, _pool=self)
+            except MaxRetryError:
+                if retries.raise_on_redirect:
+                    # Release the connection for this response, since we're not
+                    # returning it to be released manually.
+                    response.release_conn()
+                    raise
+                return response
+
+            log.info("Redirecting %s -> %s", url, redirect_location)
+            return self.urlopen(
+                method, redirect_location, body, headers,
+                retries=retries, redirect=redirect,
+                assert_same_host=assert_same_host,
+                timeout=timeout, pool_timeout=pool_timeout,
+                release_conn=release_conn, **response_kw)
+
+        # Check if we should retry the HTTP response.
+        if retries.is_forced_retry(method, status_code=response.status):
+            try:
+                retries = retries.increment(method, url, response=response, _pool=self)
+            except MaxRetryError:
+                if retries.raise_on_status:
+                    # Release the connection for this response, since we're not
+                    # returning it to be released manually.
+                    response.release_conn()
+                    raise
+                return response
+            retries.sleep()
+            log.info("Forced retry: %s", url)
+            return self.urlopen(
+                method, url, body, headers,
+                retries=retries, redirect=redirect,
+                assert_same_host=assert_same_host,
+                timeout=timeout, pool_timeout=pool_timeout,
+                release_conn=release_conn, **response_kw)
+
+        return response
+
+
+class HTTPSConnectionPool(HTTPConnectionPool):
+    """
+    Same as :class:`.HTTPConnectionPool`, but HTTPS.
+
+    When Python is compiled with the :mod:`ssl` module, then
+    :class:`.VerifiedHTTPSConnection` is used, which *can* verify certificates,
+    instead of :class:`.HTTPSConnection`.
+
+    :class:`.VerifiedHTTPSConnection` uses one of ``assert_fingerprint``,
+    ``assert_hostname`` and ``host`` in this order to verify connections.
+    If ``assert_hostname`` is False, no verification is done.
+
+    The ``key_file``, ``cert_file``, ``cert_reqs``, ``ca_certs``,
+    ``ca_cert_dir``, and ``ssl_version`` are only used if :mod:`ssl` is
+    available and are fed into :meth:`urllib3.util.ssl_wrap_socket` to upgrade
+    the connection socket into an SSL socket.
+    """
+
+    scheme = 'https'
+    ConnectionCls = HTTPSConnection
+
+    def __init__(self, host, port=None,
+                 strict=False, timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1,
+                 block=False, headers=None, retries=None,
+                 _proxy=None, _proxy_headers=None,
+                 key_file=None, cert_file=None, cert_reqs=None,
+                 ca_certs=None, ssl_version=None,
+                 assert_hostname=None, assert_fingerprint=None,
+                 ca_cert_dir=None, **conn_kw):
+
+        HTTPConnectionPool.__init__(self, host, port, strict, timeout, maxsize,
+                                    block, headers, retries, _proxy, _proxy_headers,
+                                    **conn_kw)
+
+        if ca_certs and cert_reqs is None:
+            cert_reqs = 'CERT_REQUIRED'
+
+        self.key_file = key_file
+        self.cert_file = cert_file
+        self.cert_reqs = cert_reqs
+        self.ca_certs = ca_certs
+        self.ca_cert_dir = ca_cert_dir
+        self.ssl_version = ssl_version
+        self.assert_hostname = assert_hostname
+        self.assert_fingerprint = assert_fingerprint
+
+    def _prepare_conn(self, conn):
+        """
+        Prepare the ``connection`` for :meth:`urllib3.util.ssl_wrap_socket`
+        and establish the tunnel if proxy is used.
+        """
+
+        if isinstance(conn, VerifiedHTTPSConnection):
+            conn.set_cert(key_file=self.key_file,
+                          cert_file=self.cert_file,
+                          cert_reqs=self.cert_reqs,
+                          ca_certs=self.ca_certs,
+                          ca_cert_dir=self.ca_cert_dir,
+                          assert_hostname=self.assert_hostname,
+                          assert_fingerprint=self.assert_fingerprint)
+            conn.ssl_version = self.ssl_version
+
+        return conn
+
+    def _prepare_proxy(self, conn):
+        """
+        Establish tunnel connection early, because otherwise httplib
+        would improperly set Host: header to proxy's IP:port.
+        """
+        # Python 2.7+
+        try:
+            set_tunnel = conn.set_tunnel
+        except AttributeError:  # Platform-specific: Python 2.6
+            set_tunnel = conn._set_tunnel
+
+        if sys.version_info <= (2, 6, 4) and not self.proxy_headers:  # Python 2.6.4 and older
+            set_tunnel(self.host, self.port)
+        else:
+            set_tunnel(self.host, self.port, self.proxy_headers)
+
+        conn.connect()
+
+    def _new_conn(self):
+        """
+        Return a fresh :class:`httplib.HTTPSConnection`.
+        """
+        self.num_connections += 1
+        log.info("Starting new HTTPS connection (%d): %s",
+                 self.num_connections, self.host)
+
+        if not self.ConnectionCls or self.ConnectionCls is DummyConnection:
+            raise SSLError("Can't connect to HTTPS URL because the SSL "
+                           "module is not available.")
+
+        actual_host = self.host
+        actual_port = self.port
+        if self.proxy is not None:
+            actual_host = self.proxy.host
+            actual_port = self.proxy.port
+
+        conn = self.ConnectionCls(host=actual_host, port=actual_port,
+                                  timeout=self.timeout.connect_timeout,
+                                  strict=self.strict, **self.conn_kw)
+
+        return self._prepare_conn(conn)
+
+    def _validate_conn(self, conn):
+        """
+        Called right before a request is made, after the socket is created.
+        """
+        super(HTTPSConnectionPool, self)._validate_conn(conn)
+
+        # Force connect early to allow us to validate the connection.
+        if not getattr(conn, 'sock', None):  # AppEngine might not have  `.sock`
+            conn.connect()
+
+        if not conn.is_verified:
+            warnings.warn((
+                'Unverified HTTPS request is being made. '
+                'Adding certificate verification is strongly advised. See: '
+                'https://urllib3.readthedocs.io/en/latest/security.html'),
+                InsecureRequestWarning)
+
+
+def connection_from_url(url, **kw):
+    """
+    Given a url, return an :class:`.ConnectionPool` instance of its host.
+
+    This is a shortcut for not having to parse out the scheme, host, and port
+    of the url before creating an :class:`.ConnectionPool` instance.
+
+    :param url:
+        Absolute URL string that must include the scheme. Port is optional.
+
+    :param \**kw:
+        Passes additional parameters to the constructor of the appropriate
+        :class:`.ConnectionPool`. Useful for specifying things like
+        timeout, maxsize, headers, etc.
+
+    Example::
+
+        >>> conn = connection_from_url('http://google.com/')
+        >>> r = conn.request('GET', '/')
+    """
+    scheme, host, port = get_host(url)
+    port = port or port_by_scheme.get(scheme, 80)
+    if scheme == 'https':
+        return HTTPSConnectionPool(host, port=port, **kw)
+    else:
+        return HTTPConnectionPool(host, port=port, **kw)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py
new file mode 100644
index 0000000..1579476
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/appengine.py
@@ -0,0 +1,231 @@
+from __future__ import absolute_import
+import logging
+import os
+import warnings
+
+from ..exceptions import (
+    HTTPError,
+    HTTPWarning,
+    MaxRetryError,
+    ProtocolError,
+    TimeoutError,
+    SSLError
+)
+
+from ..packages.six import BytesIO
+from ..request import RequestMethods
+from ..response import HTTPResponse
+from ..util.timeout import Timeout
+from ..util.retry import Retry
+
+try:
+    from google.appengine.api import urlfetch
+except ImportError:
+    urlfetch = None
+
+
+log = logging.getLogger(__name__)
+
+
+class AppEnginePlatformWarning(HTTPWarning):
+    pass
+
+
+class AppEnginePlatformError(HTTPError):
+    pass
+
+
+class AppEngineManager(RequestMethods):
+    """
+    Connection manager for Google App Engine sandbox applications.
+
+    This manager uses the URLFetch service directly instead of using the
+    emulated httplib, and is subject to URLFetch limitations as described in
+    the App Engine documentation here:
+
+        https://cloud.google.com/appengine/docs/python/urlfetch
+
+    Notably it will raise an AppEnginePlatformError if:
+        * URLFetch is not available.
+        * If you attempt to use this on GAEv2 (Managed VMs), as full socket
+          support is available.
+        * If a request size is more than 10 megabytes.
+        * If a response size is more than 32 megabtyes.
+        * If you use an unsupported request method such as OPTIONS.
+
+    Beyond those cases, it will raise normal urllib3 errors.
+    """
+
+    def __init__(self, headers=None, retries=None, validate_certificate=True):
+        if not urlfetch:
+            raise AppEnginePlatformError(
+                "URLFetch is not available in this environment.")
+
+        if is_prod_appengine_mvms():
+            raise AppEnginePlatformError(
+                "Use normal urllib3.PoolManager instead of AppEngineManager"
+                "on Managed VMs, as using URLFetch is not necessary in "
+                "this environment.")
+
+        warnings.warn(
+            "urllib3 is using URLFetch on Google App Engine sandbox instead "
+            "of sockets. To use sockets directly instead of URLFetch see "
+            "https://urllib3.readthedocs.io/en/latest/contrib.html.",
+            AppEnginePlatformWarning)
+
+        RequestMethods.__init__(self, headers)
+        self.validate_certificate = validate_certificate
+
+        self.retries = retries or Retry.DEFAULT
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def urlopen(self, method, url, body=None, headers=None,
+                retries=None, redirect=True, timeout=Timeout.DEFAULT_TIMEOUT,
+                **response_kw):
+
+        retries = self._get_retries(retries, redirect)
+
+        try:
+            response = urlfetch.fetch(
+                url,
+                payload=body,
+                method=method,
+                headers=headers or {},
+                allow_truncated=False,
+                follow_redirects=(
+                    redirect and
+                    retries.redirect != 0 and
+                    retries.total),
+                deadline=self._get_absolute_timeout(timeout),
+                validate_certificate=self.validate_certificate,
+            )
+        except urlfetch.DeadlineExceededError as e:
+            raise TimeoutError(self, e)
+
+        except urlfetch.InvalidURLError as e:
+            if 'too large' in str(e):
+                raise AppEnginePlatformError(
+                    "URLFetch request too large, URLFetch only "
+                    "supports requests up to 10mb in size.", e)
+            raise ProtocolError(e)
+
+        except urlfetch.DownloadError as e:
+            if 'Too many redirects' in str(e):
+                raise MaxRetryError(self, url, reason=e)
+            raise ProtocolError(e)
+
+        except urlfetch.ResponseTooLargeError as e:
+            raise AppEnginePlatformError(
+                "URLFetch response too large, URLFetch only supports"
+                "responses up to 32mb in size.", e)
+
+        except urlfetch.SSLCertificateError as e:
+            raise SSLError(e)
+
+        except urlfetch.InvalidMethodError as e:
+            raise AppEnginePlatformError(
+                "URLFetch does not support method: %s" % method, e)
+
+        http_response = self._urlfetch_response_to_http_response(
+            response, **response_kw)
+
+        # Check for redirect response
+        if (http_response.get_redirect_location() and
+                retries.raise_on_redirect and redirect):
+            raise MaxRetryError(self, url, "too many redirects")
+
+        # Check if we should retry the HTTP response.
+        if retries.is_forced_retry(method, status_code=http_response.status):
+            retries = retries.increment(
+                method, url, response=http_response, _pool=self)
+            log.info("Forced retry: %s", url)
+            retries.sleep()
+            return self.urlopen(
+                method, url,
+                body=body, headers=headers,
+                retries=retries, redirect=redirect,
+                timeout=timeout, **response_kw)
+
+        return http_response
+
+    def _urlfetch_response_to_http_response(self, urlfetch_resp, **response_kw):
+
+        if is_prod_appengine():
+            # Production GAE handles deflate encoding automatically, but does
+            # not remove the encoding header.
+            content_encoding = urlfetch_resp.headers.get('content-encoding')
+
+            if content_encoding == 'deflate':
+                del urlfetch_resp.headers['content-encoding']
+
+        transfer_encoding = urlfetch_resp.headers.get('transfer-encoding')
+        # We have a full response's content,
+        # so let's make sure we don't report ourselves as chunked data.
+        if transfer_encoding == 'chunked':
+            encodings = transfer_encoding.split(",")
+            encodings.remove('chunked')
+            urlfetch_resp.headers['transfer-encoding'] = ','.join(encodings)
+
+        return HTTPResponse(
+            # In order for decoding to work, we must present the content as
+            # a file-like object.
+            body=BytesIO(urlfetch_resp.content),
+            headers=urlfetch_resp.headers,
+            status=urlfetch_resp.status_code,
+            **response_kw
+        )
+
+    def _get_absolute_timeout(self, timeout):
+        if timeout is Timeout.DEFAULT_TIMEOUT:
+            return 5  # 5s is the default timeout for URLFetch.
+        if isinstance(timeout, Timeout):
+            if timeout._read is not timeout._connect:
+                warnings.warn(
+                    "URLFetch does not support granular timeout settings, "
+                    "reverting to total timeout.", AppEnginePlatformWarning)
+            return timeout.total
+        return timeout
+
+    def _get_retries(self, retries, redirect):
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(
+                retries, redirect=redirect, default=self.retries)
+
+        if retries.connect or retries.read or retries.redirect:
+            warnings.warn(
+                "URLFetch only supports total retries and does not "
+                "recognize connect, read, or redirect retry parameters.",
+                AppEnginePlatformWarning)
+
+        return retries
+
+
+def is_appengine():
+    return (is_local_appengine() or
+            is_prod_appengine() or
+            is_prod_appengine_mvms())
+
+
+def is_appengine_sandbox():
+    return is_appengine() and not is_prod_appengine_mvms()
+
+
+def is_local_appengine():
+    return ('APPENGINE_RUNTIME' in os.environ and
+            'Development/' in os.environ['SERVER_SOFTWARE'])
+
+
+def is_prod_appengine():
+    return ('APPENGINE_RUNTIME' in os.environ and
+            'Google App Engine/' in os.environ['SERVER_SOFTWARE'] and
+            not is_prod_appengine_mvms())
+
+
+def is_prod_appengine_mvms():
+    return os.environ.get('GAE_VM', False) == 'true'
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py
new file mode 100644
index 0000000..11d0b5c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/ntlmpool.py
@@ -0,0 +1,115 @@
+"""
+NTLM authenticating pool, contributed by erikcederstran
+
+Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
+"""
+from __future__ import absolute_import
+
+try:
+    from http.client import HTTPSConnection
+except ImportError:
+    from httplib import HTTPSConnection
+from logging import getLogger
+from ntlm import ntlm
+
+from urllib3 import HTTPSConnectionPool
+
+
+log = getLogger(__name__)
+
+
+class NTLMConnectionPool(HTTPSConnectionPool):
+    """
+    Implements an NTLM authentication version of an urllib3 connection pool
+    """
+
+    scheme = 'https'
+
+    def __init__(self, user, pw, authurl, *args, **kwargs):
+        """
+        authurl is a random URL on the server that is protected by NTLM.
+        user is the Windows user, probably in the DOMAIN\\username format.
+        pw is the password for the user.
+        """
+        super(NTLMConnectionPool, self).__init__(*args, **kwargs)
+        self.authurl = authurl
+        self.rawuser = user
+        user_parts = user.split('\\', 1)
+        self.domain = user_parts[0].upper()
+        self.user = user_parts[1]
+        self.pw = pw
+
+    def _new_conn(self):
+        # Performs the NTLM handshake that secures the connection. The socket
+        # must be kept open while requests are performed.
+        self.num_connections += 1
+        log.debug('Starting NTLM HTTPS connection no. %d: https://%s%s',
+                  self.num_connections, self.host, self.authurl)
+
+        headers = {}
+        headers['Connection'] = 'Keep-Alive'
+        req_header = 'Authorization'
+        resp_header = 'www-authenticate'
+
+        conn = HTTPSConnection(host=self.host, port=self.port)
+
+        # Send negotiation message
+        headers[req_header] = (
+            'NTLM %s' % ntlm.create_NTLM_NEGOTIATE_MESSAGE(self.rawuser))
+        log.debug('Request headers: %s', headers)
+        conn.request('GET', self.authurl, None, headers)
+        res = conn.getresponse()
+        reshdr = dict(res.getheaders())
+        log.debug('Response status: %s %s', res.status, res.reason)
+        log.debug('Response headers: %s', reshdr)
+        log.debug('Response data: %s [...]', res.read(100))
+
+        # Remove the reference to the socket, so that it can not be closed by
+        # the response object (we want to keep the socket open)
+        res.fp = None
+
+        # Server should respond with a challenge message
+        auth_header_values = reshdr[resp_header].split(', ')
+        auth_header_value = None
+        for s in auth_header_values:
+            if s[:5] == 'NTLM ':
+                auth_header_value = s[5:]
+        if auth_header_value is None:
+            raise Exception('Unexpected %s response header: %s' %
+                            (resp_header, reshdr[resp_header]))
+
+        # Send authentication message
+        ServerChallenge, NegotiateFlags = \
+            ntlm.parse_NTLM_CHALLENGE_MESSAGE(auth_header_value)
+        auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(ServerChallenge,
+                                                         self.user,
+                                                         self.domain,
+                                                         self.pw,
+                                                         NegotiateFlags)
+        headers[req_header] = 'NTLM %s' % auth_msg
+        log.debug('Request headers: %s', headers)
+        conn.request('GET', self.authurl, None, headers)
+        res = conn.getresponse()
+        log.debug('Response status: %s %s', res.status, res.reason)
+        log.debug('Response headers: %s', dict(res.getheaders()))
+        log.debug('Response data: %s [...]', res.read()[:100])
+        if res.status != 200:
+            if res.status == 401:
+                raise Exception('Server rejected request: wrong '
+                                'username or password')
+            raise Exception('Wrong server response: %s %s' %
+                            (res.status, res.reason))
+
+        res.fp = None
+        log.debug('Connection established')
+        return conn
+
+    def urlopen(self, method, url, body=None, headers=None, retries=3,
+                redirect=True, assert_same_host=True):
+        if headers is None:
+            headers = {}
+        headers['Connection'] = 'Keep-Alive'
+        return super(NTLMConnectionPool, self).urlopen(method, url, body,
+                                                       headers, retries,
+                                                       redirect,
+                                                       assert_same_host)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py
new file mode 100644
index 0000000..ed3b9cc
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/pyopenssl.py
@@ -0,0 +1,358 @@
+'''SSL with SNI_-support for Python 2. Follow these instructions if you would
+like to verify SSL certificates in Python 2. Note, the default libraries do
+*not* do certificate checking; you need to do additional work to validate
+certificates yourself.
+
+This needs the following packages installed:
+
+* pyOpenSSL (tested with 0.13)
+* ndg-httpsclient (tested with 0.3.2)
+* pyasn1 (tested with 0.1.6)
+
+You can install them with the following command:
+
+    pip install pyopenssl ndg-httpsclient pyasn1
+
+To activate certificate checking, call
+:func:`~urllib3.contrib.pyopenssl.inject_into_urllib3` from your Python code
+before you begin making HTTP requests. This can be done in a ``sitecustomize``
+module, or at any other time before your application begins using ``urllib3``,
+like this::
+
+    try:
+        import urllib3.contrib.pyopenssl
+        urllib3.contrib.pyopenssl.inject_into_urllib3()
+    except ImportError:
+        pass
+
+Now you can use :mod:`urllib3` as you normally would, and it will support SNI
+when the required modules are installed.
+
+Activating this module also has the positive side effect of disabling SSL/TLS
+compression in Python 2 (see `CRIME attack`_).
+
+If you want to configure the default list of supported cipher suites, you can
+set the ``urllib3.contrib.pyopenssl.DEFAULT_SSL_CIPHER_LIST`` variable.
+
+Module Variables
+----------------
+
+:var DEFAULT_SSL_CIPHER_LIST: The list of supported SSL/TLS cipher suites.
+
+.. _sni: https://en.wikipedia.org/wiki/Server_Name_Indication
+.. _crime attack: https://en.wikipedia.org/wiki/CRIME_(security_exploit)
+
+'''
+from __future__ import absolute_import
+
+try:
+    from ndg.httpsclient.ssl_peer_verification import SUBJ_ALT_NAME_SUPPORT
+    from ndg.httpsclient.subj_alt_name import SubjectAltName as BaseSubjectAltName
+except SyntaxError as e:
+    raise ImportError(e)
+
+import OpenSSL.SSL
+from pyasn1.codec.der import decoder as der_decoder
+from pyasn1.type import univ, constraint
+from socket import timeout, error as SocketError
+
+try:  # Platform-specific: Python 2
+    from socket import _fileobject
+except ImportError:  # Platform-specific: Python 3
+    _fileobject = None
+    from urllib3.packages.backports.makefile import backport_makefile
+
+import ssl
+import select
+import six
+
+from .. import connection
+from .. import util
+
+__all__ = ['inject_into_urllib3', 'extract_from_urllib3']
+
+# SNI only *really* works if we can read the subjectAltName of certificates.
+HAS_SNI = SUBJ_ALT_NAME_SUPPORT
+
+# Map from urllib3 to PyOpenSSL compatible parameter-values.
+_openssl_versions = {
+    ssl.PROTOCOL_SSLv23: OpenSSL.SSL.SSLv23_METHOD,
+    ssl.PROTOCOL_TLSv1: OpenSSL.SSL.TLSv1_METHOD,
+}
+
+if hasattr(ssl, 'PROTOCOL_TLSv1_1') and hasattr(OpenSSL.SSL, 'TLSv1_1_METHOD'):
+    _openssl_versions[ssl.PROTOCOL_TLSv1_1] = OpenSSL.SSL.TLSv1_1_METHOD
+
+if hasattr(ssl, 'PROTOCOL_TLSv1_2') and hasattr(OpenSSL.SSL, 'TLSv1_2_METHOD'):
+    _openssl_versions[ssl.PROTOCOL_TLSv1_2] = OpenSSL.SSL.TLSv1_2_METHOD
+
+try:
+    _openssl_versions.update({ssl.PROTOCOL_SSLv3: OpenSSL.SSL.SSLv3_METHOD})
+except AttributeError:
+    pass
+
+_openssl_verify = {
+    ssl.CERT_NONE: OpenSSL.SSL.VERIFY_NONE,
+    ssl.CERT_OPTIONAL: OpenSSL.SSL.VERIFY_PEER,
+    ssl.CERT_REQUIRED:
+        OpenSSL.SSL.VERIFY_PEER + OpenSSL.SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
+}
+
+DEFAULT_SSL_CIPHER_LIST = util.ssl_.DEFAULT_CIPHERS.encode('ascii')
+
+# OpenSSL will only write 16K at a time
+SSL_WRITE_BLOCKSIZE = 16384
+
+orig_util_HAS_SNI = util.HAS_SNI
+orig_connection_ssl_wrap_socket = connection.ssl_wrap_socket
+
+
+def inject_into_urllib3():
+    'Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.'
+
+    connection.ssl_wrap_socket = ssl_wrap_socket
+    util.HAS_SNI = HAS_SNI
+    util.IS_PYOPENSSL = True
+
+
+def extract_from_urllib3():
+    'Undo monkey-patching by :func:`inject_into_urllib3`.'
+
+    connection.ssl_wrap_socket = orig_connection_ssl_wrap_socket
+    util.HAS_SNI = orig_util_HAS_SNI
+    util.IS_PYOPENSSL = False
+
+
+# Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
+class SubjectAltName(BaseSubjectAltName):
+    '''ASN.1 implementation for subjectAltNames support'''
+
+    # There is no limit to how many SAN certificates a certificate may have,
+    #   however this needs to have some limit so we'll set an arbitrarily high
+    #   limit.
+    sizeSpec = univ.SequenceOf.sizeSpec + \
+        constraint.ValueSizeConstraint(1, 1024)
+
+
+# Note: This is a slightly bug-fixed version of same from ndg-httpsclient.
+def get_subj_alt_name(peer_cert):
+    # Search through extensions
+    dns_name = []
+    if not SUBJ_ALT_NAME_SUPPORT:
+        return dns_name
+
+    general_names = SubjectAltName()
+    for i in range(peer_cert.get_extension_count()):
+        ext = peer_cert.get_extension(i)
+        ext_name = ext.get_short_name()
+        if ext_name != b'subjectAltName':
+            continue
+
+        # PyOpenSSL returns extension data in ASN.1 encoded form
+        ext_dat = ext.get_data()
+        decoded_dat = der_decoder.decode(ext_dat,
+                                         asn1Spec=general_names)
+
+        for name in decoded_dat:
+            if not isinstance(name, SubjectAltName):
+                continue
+            for entry in range(len(name)):
+                component = name.getComponentByPosition(entry)
+                if component.getName() != 'dNSName':
+                    continue
+                dns_name.append(str(component.getComponent()))
+
+    return dns_name
+
+
+class WrappedSocket(object):
+    '''API-compatibility wrapper for Python OpenSSL's Connection-class.
+
+    Note: _makefile_refs, _drop() and _reuse() are needed for the garbage
+    collector of pypy.
+    '''
+
+    def __init__(self, connection, socket, suppress_ragged_eofs=True):
+        self.connection = connection
+        self.socket = socket
+        self.suppress_ragged_eofs = suppress_ragged_eofs
+        self._makefile_refs = 0
+        self._closed = False
+
+    def fileno(self):
+        return self.socket.fileno()
+
+    # Copy-pasted from Python 3.5 source code
+    def _decref_socketios(self):
+        if self._makefile_refs > 0:
+            self._makefile_refs -= 1
+        if self._closed:
+            self.close()
+
+    def recv(self, *args, **kwargs):
+        try:
+            data = self.connection.recv(*args, **kwargs)
+        except OpenSSL.SSL.SysCallError as e:
+            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
+                return b''
+            else:
+                raise SocketError(str(e))
+        except OpenSSL.SSL.ZeroReturnError as e:
+            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
+                return b''
+            else:
+                raise
+        except OpenSSL.SSL.WantReadError:
+            rd, wd, ed = select.select(
+                [self.socket], [], [], self.socket.gettimeout())
+            if not rd:
+                raise timeout('The read operation timed out')
+            else:
+                return self.recv(*args, **kwargs)
+        else:
+            return data
+
+    def recv_into(self, *args, **kwargs):
+        try:
+            return self.connection.recv_into(*args, **kwargs)
+        except OpenSSL.SSL.SysCallError as e:
+            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
+                return 0
+            else:
+                raise SocketError(str(e))
+        except OpenSSL.SSL.ZeroReturnError as e:
+            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
+                return 0
+            else:
+                raise
+        except OpenSSL.SSL.WantReadError:
+            rd, wd, ed = select.select(
+                [self.socket], [], [], self.socket.gettimeout())
+            if not rd:
+                raise timeout('The read operation timed out')
+            else:
+                return self.recv_into(*args, **kwargs)
+
+    def settimeout(self, timeout):
+        return self.socket.settimeout(timeout)
+
+    def _send_until_done(self, data):
+        while True:
+            try:
+                return self.connection.send(data)
+            except OpenSSL.SSL.WantWriteError:
+                _, wlist, _ = select.select([], [self.socket], [],
+                                            self.socket.gettimeout())
+                if not wlist:
+                    raise timeout()
+                continue
+
+    def sendall(self, data):
+        total_sent = 0
+        while total_sent < len(data):
+            sent = self._send_until_done(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
+            total_sent += sent
+
+    def shutdown(self):
+        # FIXME rethrow compatible exceptions should we ever use this
+        self.connection.shutdown()
+
+    def close(self):
+        if self._makefile_refs < 1:
+            try:
+                self._closed = True
+                return self.connection.close()
+            except OpenSSL.SSL.Error:
+                return
+        else:
+            self._makefile_refs -= 1
+
+    def getpeercert(self, binary_form=False):
+        x509 = self.connection.get_peer_certificate()
+
+        if not x509:
+            return x509
+
+        if binary_form:
+            return OpenSSL.crypto.dump_certificate(
+                OpenSSL.crypto.FILETYPE_ASN1,
+                x509)
+
+        return {
+            'subject': (
+                (('commonName', x509.get_subject().CN),),
+            ),
+            'subjectAltName': [
+                ('DNS', value)
+                for value in get_subj_alt_name(x509)
+            ]
+        }
+
+    def _reuse(self):
+        self._makefile_refs += 1
+
+    def _drop(self):
+        if self._makefile_refs < 1:
+            self.close()
+        else:
+            self._makefile_refs -= 1
+
+
+if _fileobject:  # Platform-specific: Python 2
+    def makefile(self, mode, bufsize=-1):
+        self._makefile_refs += 1
+        return _fileobject(self, mode, bufsize, close=True)
+else:  # Platform-specific: Python 3
+    makefile = backport_makefile
+
+WrappedSocket.makefile = makefile
+
+
+def _verify_callback(cnx, x509, err_no, err_depth, return_code):
+    return err_no == 0
+
+
+def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
+                    ca_certs=None, server_hostname=None,
+                    ssl_version=None, ca_cert_dir=None):
+    ctx = OpenSSL.SSL.Context(_openssl_versions[ssl_version])
+    if certfile:
+        keyfile = keyfile or certfile  # Match behaviour of the normal python ssl library
+        ctx.use_certificate_file(certfile)
+    if keyfile:
+        ctx.use_privatekey_file(keyfile)
+    if cert_reqs != ssl.CERT_NONE:
+        ctx.set_verify(_openssl_verify[cert_reqs], _verify_callback)
+    if ca_certs or ca_cert_dir:
+        try:
+            ctx.load_verify_locations(ca_certs, ca_cert_dir)
+        except OpenSSL.SSL.Error as e:
+            raise ssl.SSLError('bad ca_certs: %r' % ca_certs, e)
+    else:
+        ctx.set_default_verify_paths()
+
+    # Disable TLS compression to mitigate CRIME attack (issue #309)
+    OP_NO_COMPRESSION = 0x20000
+    ctx.set_options(OP_NO_COMPRESSION)
+
+    # Set list of supported ciphersuites.
+    ctx.set_cipher_list(DEFAULT_SSL_CIPHER_LIST)
+
+    cnx = OpenSSL.SSL.Connection(ctx, sock)
+    if isinstance(server_hostname, six.text_type):  # Platform-specific: Python 3
+        server_hostname = server_hostname.encode('utf-8')
+    cnx.set_tlsext_host_name(server_hostname)
+    cnx.set_connect_state()
+    while True:
+        try:
+            cnx.do_handshake()
+        except OpenSSL.SSL.WantReadError:
+            rd, _, _ = select.select([sock], [], [], sock.gettimeout())
+            if not rd:
+                raise timeout('select timed out')
+            continue
+        except OpenSSL.SSL.Error as e:
+            raise ssl.SSLError('bad handshake: %r' % e)
+        break
+
+    return WrappedSocket(cnx, sock)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py
new file mode 100644
index 0000000..81970fa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/contrib/socks.py
@@ -0,0 +1,172 @@
+# -*- coding: utf-8 -*-
+"""
+SOCKS support for urllib3
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+This contrib module contains provisional support for SOCKS proxies from within
+urllib3. This module supports SOCKS4 (specifically the SOCKS4A variant) and
+SOCKS5. To enable its functionality, either install PySocks or install this
+module with the ``socks`` extra.
+
+Known Limitations:
+
+- Currently PySocks does not support contacting remote websites via literal
+  IPv6 addresses. Any such connection attempt will fail.
+- Currently PySocks does not support IPv6 connections to the SOCKS proxy. Any
+  such connection attempt will fail.
+"""
+from __future__ import absolute_import
+
+try:
+    import socks
+except ImportError:
+    import warnings
+    from ..exceptions import DependencyWarning
+
+    warnings.warn((
+        'SOCKS support in urllib3 requires the installation of optional '
+        'dependencies: specifically, PySocks.  For more information, see '
+        'https://urllib3.readthedocs.io/en/latest/contrib.html#socks-proxies'
+        ),
+        DependencyWarning
+    )
+    raise
+
+from socket import error as SocketError, timeout as SocketTimeout
+
+from ..connection import (
+    HTTPConnection, HTTPSConnection
+)
+from ..connectionpool import (
+    HTTPConnectionPool, HTTPSConnectionPool
+)
+from ..exceptions import ConnectTimeoutError, NewConnectionError
+from ..poolmanager import PoolManager
+from ..util.url import parse_url
+
+try:
+    import ssl
+except ImportError:
+    ssl = None
+
+
+class SOCKSConnection(HTTPConnection):
+    """
+    A plain-text HTTP connection that connects via a SOCKS proxy.
+    """
+    def __init__(self, *args, **kwargs):
+        self._socks_options = kwargs.pop('_socks_options')
+        super(SOCKSConnection, self).__init__(*args, **kwargs)
+
+    def _new_conn(self):
+        """
+        Establish a new connection via the SOCKS proxy.
+        """
+        extra_kw = {}
+        if self.source_address:
+            extra_kw['source_address'] = self.source_address
+
+        if self.socket_options:
+            extra_kw['socket_options'] = self.socket_options
+
+        try:
+            conn = socks.create_connection(
+                (self.host, self.port),
+                proxy_type=self._socks_options['socks_version'],
+                proxy_addr=self._socks_options['proxy_host'],
+                proxy_port=self._socks_options['proxy_port'],
+                proxy_username=self._socks_options['username'],
+                proxy_password=self._socks_options['password'],
+                timeout=self.timeout,
+                **extra_kw
+            )
+
+        except SocketTimeout as e:
+            raise ConnectTimeoutError(
+                self, "Connection to %s timed out. (connect timeout=%s)" %
+                (self.host, self.timeout))
+
+        except socks.ProxyError as e:
+            # This is fragile as hell, but it seems to be the only way to raise
+            # useful errors here.
+            if e.socket_err:
+                error = e.socket_err
+                if isinstance(error, SocketTimeout):
+                    raise ConnectTimeoutError(
+                        self,
+                        "Connection to %s timed out. (connect timeout=%s)" %
+                        (self.host, self.timeout)
+                    )
+                else:
+                    raise NewConnectionError(
+                        self,
+                        "Failed to establish a new connection: %s" % error
+                    )
+            else:
+                raise NewConnectionError(
+                    self,
+                    "Failed to establish a new connection: %s" % e
+                )
+
+        except SocketError as e:  # Defensive: PySocks should catch all these.
+            raise NewConnectionError(
+                self, "Failed to establish a new connection: %s" % e)
+
+        return conn
+
+
+# We don't need to duplicate the Verified/Unverified distinction from
+# urllib3/connection.py here because the HTTPSConnection will already have been
+# correctly set to either the Verified or Unverified form by that module. This
+# means the SOCKSHTTPSConnection will automatically be the correct type.
+class SOCKSHTTPSConnection(SOCKSConnection, HTTPSConnection):
+    pass
+
+
+class SOCKSHTTPConnectionPool(HTTPConnectionPool):
+    ConnectionCls = SOCKSConnection
+
+
+class SOCKSHTTPSConnectionPool(HTTPSConnectionPool):
+    ConnectionCls = SOCKSHTTPSConnection
+
+
+class SOCKSProxyManager(PoolManager):
+    """
+    A version of the urllib3 ProxyManager that routes connections via the
+    defined SOCKS proxy.
+    """
+    pool_classes_by_scheme = {
+        'http': SOCKSHTTPConnectionPool,
+        'https': SOCKSHTTPSConnectionPool,
+    }
+
+    def __init__(self, proxy_url, username=None, password=None,
+                 num_pools=10, headers=None, **connection_pool_kw):
+        parsed = parse_url(proxy_url)
+
+        if parsed.scheme == 'socks5':
+            socks_version = socks.PROXY_TYPE_SOCKS5
+        elif parsed.scheme == 'socks4':
+            socks_version = socks.PROXY_TYPE_SOCKS4
+        else:
+            raise ValueError(
+                "Unable to determine SOCKS version from %s" % proxy_url
+            )
+
+        self.proxy_url = proxy_url
+
+        socks_options = {
+            'socks_version': socks_version,
+            'proxy_host': parsed.host,
+            'proxy_port': parsed.port,
+            'username': username,
+            'password': password,
+        }
+        connection_pool_kw['_socks_options'] = socks_options
+
+        super(SOCKSProxyManager, self).__init__(
+            num_pools, headers, **connection_pool_kw
+        )
+
+        self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py
new file mode 100644
index 0000000..f2e6591
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/exceptions.py
@@ -0,0 +1,209 @@
+from __future__ import absolute_import
+# Base Exceptions
+
+
+class HTTPError(Exception):
+    "Base exception used by this module."
+    pass
+
+
+class HTTPWarning(Warning):
+    "Base warning used by this module."
+    pass
+
+
+class PoolError(HTTPError):
+    "Base exception for errors caused within a pool."
+    def __init__(self, pool, message):
+        self.pool = pool
+        HTTPError.__init__(self, "%s: %s" % (pool, message))
+
+    def __reduce__(self):
+        # For pickling purposes.
+        return self.__class__, (None, None)
+
+
+class RequestError(PoolError):
+    "Base exception for PoolErrors that have associated URLs."
+    def __init__(self, pool, url, message):
+        self.url = url
+        PoolError.__init__(self, pool, message)
+
+    def __reduce__(self):
+        # For pickling purposes.
+        return self.__class__, (None, self.url, None)
+
+
+class SSLError(HTTPError):
+    "Raised when SSL certificate fails in an HTTPS connection."
+    pass
+
+
+class ProxyError(HTTPError):
+    "Raised when the connection to a proxy fails."
+    pass
+
+
+class DecodeError(HTTPError):
+    "Raised when automatic decoding based on Content-Type fails."
+    pass
+
+
+class ProtocolError(HTTPError):
+    "Raised when something unexpected happens mid-request/response."
+    pass
+
+
+#: Renamed to ProtocolError but aliased for backwards compatibility.
+ConnectionError = ProtocolError
+
+
+# Leaf Exceptions
+
+class MaxRetryError(RequestError):
+    """Raised when the maximum number of retries is exceeded.
+
+    :param pool: The connection pool
+    :type pool: :class:`~urllib3.connectionpool.HTTPConnectionPool`
+    :param string url: The requested Url
+    :param exceptions.Exception reason: The underlying error
+
+    """
+
+    def __init__(self, pool, url, reason=None):
+        self.reason = reason
+
+        message = "Max retries exceeded with url: %s (Caused by %r)" % (
+            url, reason)
+
+        RequestError.__init__(self, pool, url, message)
+
+
+class HostChangedError(RequestError):
+    "Raised when an existing pool gets a request for a foreign host."
+
+    def __init__(self, pool, url, retries=3):
+        message = "Tried to open a foreign host with url: %s" % url
+        RequestError.__init__(self, pool, url, message)
+        self.retries = retries
+
+
+class TimeoutStateError(HTTPError):
+    """ Raised when passing an invalid state to a timeout """
+    pass
+
+
+class TimeoutError(HTTPError):
+    """ Raised when a socket timeout error occurs.
+
+    Catching this error will catch both :exc:`ReadTimeoutErrors
+    <ReadTimeoutError>` and :exc:`ConnectTimeoutErrors <ConnectTimeoutError>`.
+    """
+    pass
+
+
+class ReadTimeoutError(TimeoutError, RequestError):
+    "Raised when a socket timeout occurs while receiving data from a server"
+    pass
+
+
+# This timeout error does not have a URL attached and needs to inherit from the
+# base HTTPError
+class ConnectTimeoutError(TimeoutError):
+    "Raised when a socket timeout occurs while connecting to a server"
+    pass
+
+
+class NewConnectionError(ConnectTimeoutError, PoolError):
+    "Raised when we fail to establish a new connection. Usually ECONNREFUSED."
+    pass
+
+
+class EmptyPoolError(PoolError):
+    "Raised when a pool runs out of connections and no more are allowed."
+    pass
+
+
+class ClosedPoolError(PoolError):
+    "Raised when a request enters a pool after the pool has been closed."
+    pass
+
+
+class LocationValueError(ValueError, HTTPError):
+    "Raised when there is something wrong with a given URL input."
+    pass
+
+
+class LocationParseError(LocationValueError):
+    "Raised when get_host or similar fails to parse the URL input."
+
+    def __init__(self, location):
+        message = "Failed to parse: %s" % location
+        HTTPError.__init__(self, message)
+
+        self.location = location
+
+
+class ResponseError(HTTPError):
+    "Used as a container for an error reason supplied in a MaxRetryError."
+    GENERIC_ERROR = 'too many error responses'
+    SPECIFIC_ERROR = 'too many {status_code} error responses'
+
+
+class SecurityWarning(HTTPWarning):
+    "Warned when perfoming security reducing actions"
+    pass
+
+
+class SubjectAltNameWarning(SecurityWarning):
+    "Warned when connecting to a host with a certificate missing a SAN."
+    pass
+
+
+class InsecureRequestWarning(SecurityWarning):
+    "Warned when making an unverified HTTPS request."
+    pass
+
+
+class SystemTimeWarning(SecurityWarning):
+    "Warned when system time is suspected to be wrong"
+    pass
+
+
+class InsecurePlatformWarning(SecurityWarning):
+    "Warned when certain SSL configuration is not available on a platform."
+    pass
+
+
+class SNIMissingWarning(HTTPWarning):
+    "Warned when making a HTTPS request without SNI available."
+    pass
+
+
+class DependencyWarning(HTTPWarning):
+    """
+    Warned when an attempt is made to import a module with missing optional
+    dependencies.
+    """
+    pass
+
+
+class ResponseNotChunked(ProtocolError, ValueError):
+    "Response needs to be chunked in order to read it as chunks."
+    pass
+
+
+class ProxySchemeUnknown(AssertionError, ValueError):
+    "ProxyManager does not support the supplied scheme"
+    # TODO(t-8ch): Stop inheriting from AssertionError in v2.0.
+
+    def __init__(self, scheme):
+        message = "Not supported proxy scheme %s" % scheme
+        super(ProxySchemeUnknown, self).__init__(message)
+
+
+class HeaderParsingError(HTTPError):
+    "Raised by assert_header_parsing, but we convert it to a log.warning statement."
+    def __init__(self, defects, unparsed_data):
+        message = '%s, unparsed data: %r' % (defects or 'Unknown', unparsed_data)
+        super(HeaderParsingError, self).__init__(message)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py
new file mode 100644
index 0000000..8fa2a12
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/fields.py
@@ -0,0 +1,178 @@
+from __future__ import absolute_import
+import email.utils
+import mimetypes
+
+from .packages import six
+
+
+def guess_content_type(filename, default='application/octet-stream'):
+    """
+    Guess the "Content-Type" of a file.
+
+    :param filename:
+        The filename to guess the "Content-Type" of using :mod:`mimetypes`.
+    :param default:
+        If no "Content-Type" can be guessed, default to `default`.
+    """
+    if filename:
+        return mimetypes.guess_type(filename)[0] or default
+    return default
+
+
+def format_header_param(name, value):
+    """
+    Helper function to format and quote a single header parameter.
+
+    Particularly useful for header parameters which might contain
+    non-ASCII values, like file names. This follows RFC 2231, as
+    suggested by RFC 2388 Section 4.4.
+
+    :param name:
+        The name of the parameter, a string expected to be ASCII only.
+    :param value:
+        The value of the parameter, provided as a unicode string.
+    """
+    if not any(ch in value for ch in '"\\\r\n'):
+        result = '%s="%s"' % (name, value)
+        try:
+            result.encode('ascii')
+        except (UnicodeEncodeError, UnicodeDecodeError):
+            pass
+        else:
+            return result
+    if not six.PY3 and isinstance(value, six.text_type):  # Python 2:
+        value = value.encode('utf-8')
+    value = email.utils.encode_rfc2231(value, 'utf-8')
+    value = '%s*=%s' % (name, value)
+    return value
+
+
+class RequestField(object):
+    """
+    A data container for request body parameters.
+
+    :param name:
+        The name of this request field.
+    :param data:
+        The data/value body.
+    :param filename:
+        An optional filename of the request field.
+    :param headers:
+        An optional dict-like object of headers to initially use for the field.
+    """
+    def __init__(self, name, data, filename=None, headers=None):
+        self._name = name
+        self._filename = filename
+        self.data = data
+        self.headers = {}
+        if headers:
+            self.headers = dict(headers)
+
+    @classmethod
+    def from_tuples(cls, fieldname, value):
+        """
+        A :class:`~urllib3.fields.RequestField` factory from old-style tuple parameters.
+
+        Supports constructing :class:`~urllib3.fields.RequestField` from
+        parameter of key/value strings AND key/filetuple. A filetuple is a
+        (filename, data, MIME type) tuple where the MIME type is optional.
+        For example::
+
+            'foo': 'bar',
+            'fakefile': ('foofile.txt', 'contents of foofile'),
+            'realfile': ('barfile.txt', open('realfile').read()),
+            'typedfile': ('bazfile.bin', open('bazfile').read(), 'image/jpeg'),
+            'nonamefile': 'contents of nonamefile field',
+
+        Field names and filenames must be unicode.
+        """
+        if isinstance(value, tuple):
+            if len(value) == 3:
+                filename, data, content_type = value
+            else:
+                filename, data = value
+                content_type = guess_content_type(filename)
+        else:
+            filename = None
+            content_type = None
+            data = value
+
+        request_param = cls(fieldname, data, filename=filename)
+        request_param.make_multipart(content_type=content_type)
+
+        return request_param
+
+    def _render_part(self, name, value):
+        """
+        Overridable helper function to format a single header parameter.
+
+        :param name:
+            The name of the parameter, a string expected to be ASCII only.
+        :param value:
+            The value of the parameter, provided as a unicode string.
+        """
+        return format_header_param(name, value)
+
+    def _render_parts(self, header_parts):
+        """
+        Helper function to format and quote a single header.
+
+        Useful for single headers that are composed of multiple items. E.g.,
+        'Content-Disposition' fields.
+
+        :param header_parts:
+            A sequence of (k, v) typles or a :class:`dict` of (k, v) to format
+            as `k1="v1"; k2="v2"; ...`.
+        """
+        parts = []
+        iterable = header_parts
+        if isinstance(header_parts, dict):
+            iterable = header_parts.items()
+
+        for name, value in iterable:
+            if value:
+                parts.append(self._render_part(name, value))
+
+        return '; '.join(parts)
+
+    def render_headers(self):
+        """
+        Renders the headers for this request field.
+        """
+        lines = []
+
+        sort_keys = ['Content-Disposition', 'Content-Type', 'Content-Location']
+        for sort_key in sort_keys:
+            if self.headers.get(sort_key, False):
+                lines.append('%s: %s' % (sort_key, self.headers[sort_key]))
+
+        for header_name, header_value in self.headers.items():
+            if header_name not in sort_keys:
+                if header_value:
+                    lines.append('%s: %s' % (header_name, header_value))
+
+        lines.append('\r\n')
+        return '\r\n'.join(lines)
+
+    def make_multipart(self, content_disposition=None, content_type=None,
+                       content_location=None):
+        """
+        Makes this request field into a multipart request field.
+
+        This method overrides "Content-Disposition", "Content-Type" and
+        "Content-Location" headers to the request parameter.
+
+        :param content_type:
+            The 'Content-Type' of the request body.
+        :param content_location:
+            The 'Content-Location' of the request body.
+
+        """
+        self.headers['Content-Disposition'] = content_disposition or 'form-data'
+        self.headers['Content-Disposition'] += '; '.join([
+            '', self._render_parts(
+                (('name', self._name), ('filename', self._filename))
+            )
+        ])
+        self.headers['Content-Type'] = content_type
+        self.headers['Content-Location'] = content_location
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py
new file mode 100644
index 0000000..97a2843
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/filepost.py
@@ -0,0 +1,94 @@
+from __future__ import absolute_import
+import codecs
+
+from uuid import uuid4
+from io import BytesIO
+
+from .packages import six
+from .packages.six import b
+from .fields import RequestField
+
+writer = codecs.lookup('utf-8')[3]
+
+
+def choose_boundary():
+    """
+    Our embarassingly-simple replacement for mimetools.choose_boundary.
+    """
+    return uuid4().hex
+
+
+def iter_field_objects(fields):
+    """
+    Iterate over fields.
+
+    Supports list of (k, v) tuples and dicts, and lists of
+    :class:`~urllib3.fields.RequestField`.
+
+    """
+    if isinstance(fields, dict):
+        i = six.iteritems(fields)
+    else:
+        i = iter(fields)
+
+    for field in i:
+        if isinstance(field, RequestField):
+            yield field
+        else:
+            yield RequestField.from_tuples(*field)
+
+
+def iter_fields(fields):
+    """
+    .. deprecated:: 1.6
+
+    Iterate over fields.
+
+    The addition of :class:`~urllib3.fields.RequestField` makes this function
+    obsolete. Instead, use :func:`iter_field_objects`, which returns
+    :class:`~urllib3.fields.RequestField` objects.
+
+    Supports list of (k, v) tuples and dicts.
+    """
+    if isinstance(fields, dict):
+        return ((k, v) for k, v in six.iteritems(fields))
+
+    return ((k, v) for k, v in fields)
+
+
+def encode_multipart_formdata(fields, boundary=None):
+    """
+    Encode a dictionary of ``fields`` using the multipart/form-data MIME format.
+
+    :param fields:
+        Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`).
+
+    :param boundary:
+        If not specified, then a random boundary will be generated using
+        :func:`mimetools.choose_boundary`.
+    """
+    body = BytesIO()
+    if boundary is None:
+        boundary = choose_boundary()
+
+    for field in iter_field_objects(fields):
+        body.write(b('--%s\r\n' % (boundary)))
+
+        writer(body).write(field.render_headers())
+        data = field.data
+
+        if isinstance(data, int):
+            data = str(data)  # Backwards compatibility
+
+        if isinstance(data, six.text_type):
+            writer(body).write(data)
+        else:
+            body.write(data)
+
+        body.write(b'\r\n')
+
+    body.write(b('--%s--\r\n' % (boundary)))
+
+    content_type = str('multipart/form-data; boundary=%s' % boundary)
+
+    return body.getvalue(), content_type
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py
new file mode 100644
index 0000000..170e974
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__init__.py
@@ -0,0 +1,5 @@
+from __future__ import absolute_import
+
+from . import ssl_match_hostname
+
+__all__ = ('ssl_match_hostname', )
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..2c2ee8d
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/ordered_dict.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/ordered_dict.cpython-35.pyc
new file mode 100644
index 0000000..4732855
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/ordered_dict.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/six.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/six.cpython-35.pyc
new file mode 100644
index 0000000..14e45a0
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/__pycache__/six.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py
new file mode 100644
index 0000000..4479363
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ordered_dict.py
@@ -0,0 +1,259 @@
+# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
+# Passes Python2.7's test suite and incorporates all the latest updates.
+# Copyright 2009 Raymond Hettinger, released under the MIT License.
+# http://code.activestate.com/recipes/576693/
+try:
+    from thread import get_ident as _get_ident
+except ImportError:
+    from dummy_thread import get_ident as _get_ident
+
+try:
+    from _abcoll import KeysView, ValuesView, ItemsView
+except ImportError:
+    pass
+
+
+class OrderedDict(dict):
+    'Dictionary that remembers insertion order'
+    # An inherited dict maps keys to values.
+    # The inherited dict provides __getitem__, __len__, __contains__, and get.
+    # The remaining methods are order-aware.
+    # Big-O running times for all methods are the same as for regular dictionaries.
+
+    # The internal self.__map dictionary maps keys to links in a doubly linked list.
+    # The circular doubly linked list starts and ends with a sentinel element.
+    # The sentinel element never gets deleted (this simplifies the algorithm).
+    # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
+
+    def __init__(self, *args, **kwds):
+        '''Initialize an ordered dictionary.  Signature is the same as for
+        regular dictionaries, but keyword arguments are not recommended
+        because their insertion order is arbitrary.
+
+        '''
+        if len(args) > 1:
+            raise TypeError('expected at most 1 arguments, got %d' % len(args))
+        try:
+            self.__root
+        except AttributeError:
+            self.__root = root = []                     # sentinel node
+            root[:] = [root, root, None]
+            self.__map = {}
+        self.__update(*args, **kwds)
+
+    def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
+        'od.__setitem__(i, y) <==> od[i]=y'
+        # Setting a new item creates a new link which goes at the end of the linked
+        # list, and the inherited dictionary is updated with the new key/value pair.
+        if key not in self:
+            root = self.__root
+            last = root[0]
+            last[1] = root[0] = self.__map[key] = [last, root, key]
+        dict_setitem(self, key, value)
+
+    def __delitem__(self, key, dict_delitem=dict.__delitem__):
+        'od.__delitem__(y) <==> del od[y]'
+        # Deleting an existing item uses self.__map to find the link which is
+        # then removed by updating the links in the predecessor and successor nodes.
+        dict_delitem(self, key)
+        link_prev, link_next, key = self.__map.pop(key)
+        link_prev[1] = link_next
+        link_next[0] = link_prev
+
+    def __iter__(self):
+        'od.__iter__() <==> iter(od)'
+        root = self.__root
+        curr = root[1]
+        while curr is not root:
+            yield curr[2]
+            curr = curr[1]
+
+    def __reversed__(self):
+        'od.__reversed__() <==> reversed(od)'
+        root = self.__root
+        curr = root[0]
+        while curr is not root:
+            yield curr[2]
+            curr = curr[0]
+
+    def clear(self):
+        'od.clear() -> None.  Remove all items from od.'
+        try:
+            for node in self.__map.itervalues():
+                del node[:]
+            root = self.__root
+            root[:] = [root, root, None]
+            self.__map.clear()
+        except AttributeError:
+            pass
+        dict.clear(self)
+
+    def popitem(self, last=True):
+        '''od.popitem() -> (k, v), return and remove a (key, value) pair.
+        Pairs are returned in LIFO order if last is true or FIFO order if false.
+
+        '''
+        if not self:
+            raise KeyError('dictionary is empty')
+        root = self.__root
+        if last:
+            link = root[0]
+            link_prev = link[0]
+            link_prev[1] = root
+            root[0] = link_prev
+        else:
+            link = root[1]
+            link_next = link[1]
+            root[1] = link_next
+            link_next[0] = root
+        key = link[2]
+        del self.__map[key]
+        value = dict.pop(self, key)
+        return key, value
+
+    # -- the following methods do not depend on the internal structure --
+
+    def keys(self):
+        'od.keys() -> list of keys in od'
+        return list(self)
+
+    def values(self):
+        'od.values() -> list of values in od'
+        return [self[key] for key in self]
+
+    def items(self):
+        'od.items() -> list of (key, value) pairs in od'
+        return [(key, self[key]) for key in self]
+
+    def iterkeys(self):
+        'od.iterkeys() -> an iterator over the keys in od'
+        return iter(self)
+
+    def itervalues(self):
+        'od.itervalues -> an iterator over the values in od'
+        for k in self:
+            yield self[k]
+
+    def iteritems(self):
+        'od.iteritems -> an iterator over the (key, value) items in od'
+        for k in self:
+            yield (k, self[k])
+
+    def update(*args, **kwds):
+        '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
+
+        If E is a dict instance, does:           for k in E: od[k] = E[k]
+        If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
+        Or if E is an iterable of items, does:   for k, v in E: od[k] = v
+        In either case, this is followed by:     for k, v in F.items(): od[k] = v
+
+        '''
+        if len(args) > 2:
+            raise TypeError('update() takes at most 2 positional '
+                            'arguments (%d given)' % (len(args),))
+        elif not args:
+            raise TypeError('update() takes at least 1 argument (0 given)')
+        self = args[0]
+        # Make progressively weaker assumptions about "other"
+        other = ()
+        if len(args) == 2:
+            other = args[1]
+        if isinstance(other, dict):
+            for key in other:
+                self[key] = other[key]
+        elif hasattr(other, 'keys'):
+            for key in other.keys():
+                self[key] = other[key]
+        else:
+            for key, value in other:
+                self[key] = value
+        for key, value in kwds.items():
+            self[key] = value
+
+    __update = update  # let subclasses override update without breaking __init__
+
+    __marker = object()
+
+    def pop(self, key, default=__marker):
+        '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
+        If key is not found, d is returned if given, otherwise KeyError is raised.
+
+        '''
+        if key in self:
+            result = self[key]
+            del self[key]
+            return result
+        if default is self.__marker:
+            raise KeyError(key)
+        return default
+
+    def setdefault(self, key, default=None):
+        'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
+        if key in self:
+            return self[key]
+        self[key] = default
+        return default
+
+    def __repr__(self, _repr_running={}):
+        'od.__repr__() <==> repr(od)'
+        call_key = id(self), _get_ident()
+        if call_key in _repr_running:
+            return '...'
+        _repr_running[call_key] = 1
+        try:
+            if not self:
+                return '%s()' % (self.__class__.__name__,)
+            return '%s(%r)' % (self.__class__.__name__, self.items())
+        finally:
+            del _repr_running[call_key]
+
+    def __reduce__(self):
+        'Return state information for pickling'
+        items = [[k, self[k]] for k in self]
+        inst_dict = vars(self).copy()
+        for k in vars(OrderedDict()):
+            inst_dict.pop(k, None)
+        if inst_dict:
+            return (self.__class__, (items,), inst_dict)
+        return self.__class__, (items,)
+
+    def copy(self):
+        'od.copy() -> a shallow copy of od'
+        return self.__class__(self)
+
+    @classmethod
+    def fromkeys(cls, iterable, value=None):
+        '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
+        and values equal to v (which defaults to None).
+
+        '''
+        d = cls()
+        for key in iterable:
+            d[key] = value
+        return d
+
+    def __eq__(self, other):
+        '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
+        while comparison to a regular mapping is order-insensitive.
+
+        '''
+        if isinstance(other, OrderedDict):
+            return len(self)==len(other) and self.items() == other.items()
+        return dict.__eq__(self, other)
+
+    def __ne__(self, other):
+        return not self == other
+
+    # -- the following methods are only used in Python 2.7 --
+
+    def viewkeys(self):
+        "od.viewkeys() -> a set-like object providing a view on od's keys"
+        return KeysView(self)
+
+    def viewvalues(self):
+        "od.viewvalues() -> an object providing a view on od's values"
+        return ValuesView(self)
+
+    def viewitems(self):
+        "od.viewitems() -> a set-like object providing a view on od's items"
+        return ItemsView(self)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py
new file mode 100644
index 0000000..dd59a75
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__init__.py
@@ -0,0 +1,13 @@
+try:
+    # Python 3.2+
+    from ssl import CertificateError, match_hostname
+except ImportError:
+    try:
+        # Backport of the function from a pypi module
+        from backports.ssl_match_hostname import CertificateError, match_hostname
+    except ImportError:
+        # Our vendored copy
+        from ._implementation import CertificateError, match_hostname
+
+# Not needed, but documenting what we provide.
+__all__ = ('CertificateError', 'match_hostname')
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/__init__.cpython-35.pyc
new file mode 100644
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/_implementation.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/__pycache__/_implementation.cpython-35.pyc
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index 0000000..05687ea
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py
new file mode 100644
index 0000000..52f4287
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/packages/ssl_match_hostname/_implementation.py
@@ -0,0 +1,105 @@
+"""The match_hostname() function from Python 3.3.3, essential when using SSL."""
+
+# Note: This file is under the PSF license as the code comes from the python
+# stdlib.   http://docs.python.org/3/license.html
+
+import re
+
+__version__ = '3.4.0.2'
+
+class CertificateError(ValueError):
+    pass
+
+
+def _dnsname_match(dn, hostname, max_wildcards=1):
+    """Matching according to RFC 6125, section 6.4.3
+
+    http://tools.ietf.org/html/rfc6125#section-6.4.3
+    """
+    pats = []
+    if not dn:
+        return False
+
+    # Ported from python3-syntax:
+    # leftmost, *remainder = dn.split(r'.')
+    parts = dn.split(r'.')
+    leftmost = parts[0]
+    remainder = parts[1:]
+
+    wildcards = leftmost.count('*')
+    if wildcards > max_wildcards:
+        # Issue #17980: avoid denials of service by refusing more
+        # than one wildcard per fragment.  A survey of established
+        # policy among SSL implementations showed it to be a
+        # reasonable choice.
+        raise CertificateError(
+            "too many wildcards in certificate DNS name: " + repr(dn))
+
+    # speed up common case w/o wildcards
+    if not wildcards:
+        return dn.lower() == hostname.lower()
+
+    # RFC 6125, section 6.4.3, subitem 1.
+    # The client SHOULD NOT attempt to match a presented identifier in which
+    # the wildcard character comprises a label other than the left-most label.
+    if leftmost == '*':
+        # When '*' is a fragment by itself, it matches a non-empty dotless
+        # fragment.
+        pats.append('[^.]+')
+    elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+        # RFC 6125, section 6.4.3, subitem 3.
+        # The client SHOULD NOT attempt to match a presented identifier
+        # where the wildcard character is embedded within an A-label or
+        # U-label of an internationalized domain name.
+        pats.append(re.escape(leftmost))
+    else:
+        # Otherwise, '*' matches any dotless string, e.g. www*
+        pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+    # add the remaining fragments, ignore any wildcards
+    for frag in remainder:
+        pats.append(re.escape(frag))
+
+    pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+    return pat.match(hostname)
+
+
+def match_hostname(cert, hostname):
+    """Verify that *cert* (in decoded format as returned by
+    SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+    rules are followed, but IP addresses are not accepted for *hostname*.
+
+    CertificateError is raised on failure. On success, the function
+    returns nothing.
+    """
+    if not cert:
+        raise ValueError("empty or no certificate")
+    dnsnames = []
+    san = cert.get('subjectAltName', ())
+    for key, value in san:
+        if key == 'DNS':
+            if _dnsname_match(value, hostname):
+                return
+            dnsnames.append(value)
+    if not dnsnames:
+        # The subject is only checked when there is no dNSName entry
+        # in subjectAltName
+        for sub in cert.get('subject', ()):
+            for key, value in sub:
+                # XXX according to RFC 2818, the most specific Common Name
+                # must be used.
+                if key == 'commonName':
+                    if _dnsname_match(value, hostname):
+                        return
+                    dnsnames.append(value)
+    if len(dnsnames) > 1:
+        raise CertificateError("hostname %r "
+            "doesn't match either of %s"
+            % (hostname, ', '.join(map(repr, dnsnames))))
+    elif len(dnsnames) == 1:
+        raise CertificateError("hostname %r "
+            "doesn't match %r"
+            % (hostname, dnsnames[0]))
+    else:
+        raise CertificateError("no appropriate commonName or "
+            "subjectAltName fields were found")
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py
new file mode 100644
index 0000000..7ed00b1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/poolmanager.py
@@ -0,0 +1,367 @@
+from __future__ import absolute_import
+import collections
+import functools
+import logging
+
+try:  # Python 3
+    from urllib.parse import urljoin
+except ImportError:
+    from urlparse import urljoin
+
+from ._collections import RecentlyUsedContainer
+from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool
+from .connectionpool import port_by_scheme
+from .exceptions import LocationValueError, MaxRetryError, ProxySchemeUnknown
+from .request import RequestMethods
+from .util.url import parse_url
+from .util.retry import Retry
+
+
+__all__ = ['PoolManager', 'ProxyManager', 'proxy_from_url']
+
+
+log = logging.getLogger(__name__)
+
+SSL_KEYWORDS = ('key_file', 'cert_file', 'cert_reqs', 'ca_certs',
+                'ssl_version', 'ca_cert_dir')
+
+# The base fields to use when determining what pool to get a connection from;
+# these do not rely on the ``connection_pool_kw`` and can be determined by the
+# URL and potentially the ``urllib3.connection.port_by_scheme`` dictionary.
+#
+# All custom key schemes should include the fields in this key at a minimum.
+BasePoolKey = collections.namedtuple('BasePoolKey', ('scheme', 'host', 'port'))
+
+# The fields to use when determining what pool to get a HTTP and HTTPS
+# connection from. All additional fields must be present in the PoolManager's
+# ``connection_pool_kw`` instance variable.
+HTTPPoolKey = collections.namedtuple(
+    'HTTPPoolKey', BasePoolKey._fields + ('timeout', 'retries', 'strict',
+                                          'block', 'source_address')
+)
+HTTPSPoolKey = collections.namedtuple(
+    'HTTPSPoolKey', HTTPPoolKey._fields + SSL_KEYWORDS
+)
+
+
+def _default_key_normalizer(key_class, request_context):
+    """
+    Create a pool key of type ``key_class`` for a request.
+
+    According to RFC 3986, both the scheme and host are case-insensitive.
+    Therefore, this function normalizes both before constructing the pool
+    key for an HTTPS request. If you wish to change this behaviour, provide
+    alternate callables to ``key_fn_by_scheme``.
+
+    :param key_class:
+        The class to use when constructing the key. This should be a namedtuple
+        with the ``scheme`` and ``host`` keys at a minimum.
+
+    :param request_context:
+        A dictionary-like object that contain the context for a request.
+        It should contain a key for each field in the :class:`HTTPPoolKey`
+    """
+    context = {}
+    for key in key_class._fields:
+        context[key] = request_context.get(key)
+    context['scheme'] = context['scheme'].lower()
+    context['host'] = context['host'].lower()
+    return key_class(**context)
+
+
+# A dictionary that maps a scheme to a callable that creates a pool key.
+# This can be used to alter the way pool keys are constructed, if desired.
+# Each PoolManager makes a copy of this dictionary so they can be configured
+# globally here, or individually on the instance.
+key_fn_by_scheme = {
+    'http': functools.partial(_default_key_normalizer, HTTPPoolKey),
+    'https': functools.partial(_default_key_normalizer, HTTPSPoolKey),
+}
+
+pool_classes_by_scheme = {
+    'http': HTTPConnectionPool,
+    'https': HTTPSConnectionPool,
+}
+
+
+class PoolManager(RequestMethods):
+    """
+    Allows for arbitrary requests while transparently keeping track of
+    necessary connection pools for you.
+
+    :param num_pools:
+        Number of connection pools to cache before discarding the least
+        recently used pool.
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+
+    :param \**connection_pool_kw:
+        Additional parameters are used to create fresh
+        :class:`urllib3.connectionpool.ConnectionPool` instances.
+
+    Example::
+
+        >>> manager = PoolManager(num_pools=2)
+        >>> r = manager.request('GET', 'http://google.com/')
+        >>> r = manager.request('GET', 'http://google.com/mail')
+        >>> r = manager.request('GET', 'http://yahoo.com/')
+        >>> len(manager.pools)
+        2
+
+    """
+
+    proxy = None
+
+    def __init__(self, num_pools=10, headers=None, **connection_pool_kw):
+        RequestMethods.__init__(self, headers)
+        self.connection_pool_kw = connection_pool_kw
+        self.pools = RecentlyUsedContainer(num_pools,
+                                           dispose_func=lambda p: p.close())
+
+        # Locally set the pool classes and keys so other PoolManagers can
+        # override them.
+        self.pool_classes_by_scheme = pool_classes_by_scheme
+        self.key_fn_by_scheme = key_fn_by_scheme.copy()
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.clear()
+        # Return False to re-raise any potential exceptions
+        return False
+
+    def _new_pool(self, scheme, host, port):
+        """
+        Create a new :class:`ConnectionPool` based on host, port and scheme.
+
+        This method is used to actually create the connection pools handed out
+        by :meth:`connection_from_url` and companion methods. It is intended
+        to be overridden for customization.
+        """
+        pool_cls = self.pool_classes_by_scheme[scheme]
+        kwargs = self.connection_pool_kw
+        if scheme == 'http':
+            kwargs = self.connection_pool_kw.copy()
+            for kw in SSL_KEYWORDS:
+                kwargs.pop(kw, None)
+
+        return pool_cls(host, port, **kwargs)
+
+    def clear(self):
+        """
+        Empty our store of pools and direct them all to close.
+
+        This will not affect in-flight connections, but they will not be
+        re-used after completion.
+        """
+        self.pools.clear()
+
+    def connection_from_host(self, host, port=None, scheme='http'):
+        """
+        Get a :class:`ConnectionPool` based on the host, port, and scheme.
+
+        If ``port`` isn't given, it will be derived from the ``scheme`` using
+        ``urllib3.connectionpool.port_by_scheme``.
+        """
+
+        if not host:
+            raise LocationValueError("No host specified.")
+
+        request_context = self.connection_pool_kw.copy()
+        request_context['scheme'] = scheme or 'http'
+        if not port:
+            port = port_by_scheme.get(request_context['scheme'].lower(), 80)
+        request_context['port'] = port
+        request_context['host'] = host
+
+        return self.connection_from_context(request_context)
+
+    def connection_from_context(self, request_context):
+        """
+        Get a :class:`ConnectionPool` based on the request context.
+
+        ``request_context`` must at least contain the ``scheme`` key and its
+        value must be a key in ``key_fn_by_scheme`` instance variable.
+        """
+        scheme = request_context['scheme'].lower()
+        pool_key_constructor = self.key_fn_by_scheme[scheme]
+        pool_key = pool_key_constructor(request_context)
+
+        return self.connection_from_pool_key(pool_key)
+
+    def connection_from_pool_key(self, pool_key):
+        """
+        Get a :class:`ConnectionPool` based on the provided pool key.
+
+        ``pool_key`` should be a namedtuple that only contains immutable
+        objects. At a minimum it must have the ``scheme``, ``host``, and
+        ``port`` fields.
+        """
+        with self.pools.lock:
+            # If the scheme, host, or port doesn't match existing open
+            # connections, open a new ConnectionPool.
+            pool = self.pools.get(pool_key)
+            if pool:
+                return pool
+
+            # Make a fresh ConnectionPool of the desired type
+            pool = self._new_pool(pool_key.scheme, pool_key.host, pool_key.port)
+            self.pools[pool_key] = pool
+
+        return pool
+
+    def connection_from_url(self, url):
+        """
+        Similar to :func:`urllib3.connectionpool.connection_from_url` but
+        doesn't pass any additional parameters to the
+        :class:`urllib3.connectionpool.ConnectionPool` constructor.
+
+        Additional parameters are taken from the :class:`.PoolManager`
+        constructor.
+        """
+        u = parse_url(url)
+        return self.connection_from_host(u.host, port=u.port, scheme=u.scheme)
+
+    def urlopen(self, method, url, redirect=True, **kw):
+        """
+        Same as :meth:`urllib3.connectionpool.HTTPConnectionPool.urlopen`
+        with custom cross-host redirect logic and only sends the request-uri
+        portion of the ``url``.
+
+        The given ``url`` parameter must be absolute, such that an appropriate
+        :class:`urllib3.connectionpool.ConnectionPool` can be chosen for it.
+        """
+        u = parse_url(url)
+        conn = self.connection_from_host(u.host, port=u.port, scheme=u.scheme)
+
+        kw['assert_same_host'] = False
+        kw['redirect'] = False
+        if 'headers' not in kw:
+            kw['headers'] = self.headers
+
+        if self.proxy is not None and u.scheme == "http":
+            response = conn.urlopen(method, url, **kw)
+        else:
+            response = conn.urlopen(method, u.request_uri, **kw)
+
+        redirect_location = redirect and response.get_redirect_location()
+        if not redirect_location:
+            return response
+
+        # Support relative URLs for redirecting.
+        redirect_location = urljoin(url, redirect_location)
+
+        # RFC 7231, Section 6.4.4
+        if response.status == 303:
+            method = 'GET'
+
+        retries = kw.get('retries')
+        if not isinstance(retries, Retry):
+            retries = Retry.from_int(retries, redirect=redirect)
+
+        try:
+            retries = retries.increment(method, url, response=response, _pool=conn)
+        except MaxRetryError:
+            if retries.raise_on_redirect:
+                raise
+            return response
+
+        kw['retries'] = retries
+        kw['redirect'] = redirect
+
+        log.info("Redirecting %s -> %s", url, redirect_location)
+        return self.urlopen(method, redirect_location, **kw)
+
+
+class ProxyManager(PoolManager):
+    """
+    Behaves just like :class:`PoolManager`, but sends all requests through
+    the defined proxy, using the CONNECT method for HTTPS URLs.
+
+    :param proxy_url:
+        The URL of the proxy to be used.
+
+    :param proxy_headers:
+        A dictionary contaning headers that will be sent to the proxy. In case
+        of HTTP they are being sent with each request, while in the
+        HTTPS/CONNECT case they are sent only once. Could be used for proxy
+        authentication.
+
+    Example:
+        >>> proxy = urllib3.ProxyManager('http://localhost:3128/')
+        >>> r1 = proxy.request('GET', 'http://google.com/')
+        >>> r2 = proxy.request('GET', 'http://httpbin.org/')
+        >>> len(proxy.pools)
+        1
+        >>> r3 = proxy.request('GET', 'https://httpbin.org/')
+        >>> r4 = proxy.request('GET', 'https://twitter.com/')
+        >>> len(proxy.pools)
+        3
+
+    """
+
+    def __init__(self, proxy_url, num_pools=10, headers=None,
+                 proxy_headers=None, **connection_pool_kw):
+
+        if isinstance(proxy_url, HTTPConnectionPool):
+            proxy_url = '%s://%s:%i' % (proxy_url.scheme, proxy_url.host,
+                                        proxy_url.port)
+        proxy = parse_url(proxy_url)
+        if not proxy.port:
+            port = port_by_scheme.get(proxy.scheme, 80)
+            proxy = proxy._replace(port=port)
+
+        if proxy.scheme not in ("http", "https"):
+            raise ProxySchemeUnknown(proxy.scheme)
+
+        self.proxy = proxy
+        self.proxy_headers = proxy_headers or {}
+
+        connection_pool_kw['_proxy'] = self.proxy
+        connection_pool_kw['_proxy_headers'] = self.proxy_headers
+
+        super(ProxyManager, self).__init__(
+            num_pools, headers, **connection_pool_kw)
+
+    def connection_from_host(self, host, port=None, scheme='http'):
+        if scheme == "https":
+            return super(ProxyManager, self).connection_from_host(
+                host, port, scheme)
+
+        return super(ProxyManager, self).connection_from_host(
+            self.proxy.host, self.proxy.port, self.proxy.scheme)
+
+    def _set_proxy_headers(self, url, headers=None):
+        """
+        Sets headers needed by proxies: specifically, the Accept and Host
+        headers. Only sets headers not provided by the user.
+        """
+        headers_ = {'Accept': '*/*'}
+
+        netloc = parse_url(url).netloc
+        if netloc:
+            headers_['Host'] = netloc
+
+        if headers:
+            headers_.update(headers)
+        return headers_
+
+    def urlopen(self, method, url, redirect=True, **kw):
+        "Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute."
+        u = parse_url(url)
+
+        if u.scheme == "http":
+            # For proxied HTTPS requests, httplib sets the necessary headers
+            # on the CONNECT to the proxy. For HTTP, we'll definitely
+            # need to set 'Host' at the very least.
+            headers = kw.get('headers', self.headers)
+            kw['headers'] = self._set_proxy_headers(url, headers)
+
+        return super(ProxyManager, self).urlopen(method, url, redirect=redirect, **kw)
+
+
+def proxy_from_url(url, **kw):
+    return ProxyManager(proxy_url=url, **kw)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py
new file mode 100644
index 0000000..d5aa62d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/request.py
@@ -0,0 +1,151 @@
+from __future__ import absolute_import
+try:
+    from urllib.parse import urlencode
+except ImportError:
+    from urllib import urlencode
+
+from .filepost import encode_multipart_formdata
+
+
+__all__ = ['RequestMethods']
+
+
+class RequestMethods(object):
+    """
+    Convenience mixin for classes who implement a :meth:`urlopen` method, such
+    as :class:`~urllib3.connectionpool.HTTPConnectionPool` and
+    :class:`~urllib3.poolmanager.PoolManager`.
+
+    Provides behavior for making common types of HTTP request methods and
+    decides which type of request field encoding to use.
+
+    Specifically,
+
+    :meth:`.request_encode_url` is for sending requests whose fields are
+    encoded in the URL (such as GET, HEAD, DELETE).
+
+    :meth:`.request_encode_body` is for sending requests whose fields are
+    encoded in the *body* of the request using multipart or www-form-urlencoded
+    (such as for POST, PUT, PATCH).
+
+    :meth:`.request` is for making any kind of request, it will look up the
+    appropriate encoding format and use one of the above two methods to make
+    the request.
+
+    Initializer parameters:
+
+    :param headers:
+        Headers to include with all requests, unless other headers are given
+        explicitly.
+    """
+
+    _encode_url_methods = set(['DELETE', 'GET', 'HEAD', 'OPTIONS'])
+
+    def __init__(self, headers=None):
+        self.headers = headers or {}
+
+    def urlopen(self, method, url, body=None, headers=None,
+                encode_multipart=True, multipart_boundary=None,
+                **kw):  # Abstract
+        raise NotImplemented("Classes extending RequestMethods must implement "
+                             "their own ``urlopen`` method.")
+
+    def request(self, method, url, fields=None, headers=None, **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the appropriate encoding of
+        ``fields`` based on the ``method`` used.
+
+        This is a convenience method that requires the least amount of manual
+        effort. It can be used in most situations, while still having the
+        option to drop down to more specific methods when necessary, such as
+        :meth:`request_encode_url`, :meth:`request_encode_body`,
+        or even the lowest level :meth:`urlopen`.
+        """
+        method = method.upper()
+
+        if method in self._encode_url_methods:
+            return self.request_encode_url(method, url, fields=fields,
+                                           headers=headers,
+                                           **urlopen_kw)
+        else:
+            return self.request_encode_body(method, url, fields=fields,
+                                            headers=headers,
+                                            **urlopen_kw)
+
+    def request_encode_url(self, method, url, fields=None, headers=None,
+                           **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the ``fields`` encoded in
+        the url. This is useful for request methods like GET, HEAD, DELETE, etc.
+        """
+        if headers is None:
+            headers = self.headers
+
+        extra_kw = {'headers': headers}
+        extra_kw.update(urlopen_kw)
+
+        if fields:
+            url += '?' + urlencode(fields)
+
+        return self.urlopen(method, url, **extra_kw)
+
+    def request_encode_body(self, method, url, fields=None, headers=None,
+                            encode_multipart=True, multipart_boundary=None,
+                            **urlopen_kw):
+        """
+        Make a request using :meth:`urlopen` with the ``fields`` encoded in
+        the body. This is useful for request methods like POST, PUT, PATCH, etc.
+
+        When ``encode_multipart=True`` (default), then
+        :meth:`urllib3.filepost.encode_multipart_formdata` is used to encode
+        the payload with the appropriate content type. Otherwise
+        :meth:`urllib.urlencode` is used with the
+        'application/x-www-form-urlencoded' content type.
+
+        Multipart encoding must be used when posting files, and it's reasonably
+        safe to use it in other times too. However, it may break request
+        signing, such as with OAuth.
+
+        Supports an optional ``fields`` parameter of key/value strings AND
+        key/filetuple. A filetuple is a (filename, data, MIME type) tuple where
+        the MIME type is optional. For example::
+
+            fields = {
+                'foo': 'bar',
+                'fakefile': ('foofile.txt', 'contents of foofile'),
+                'realfile': ('barfile.txt', open('realfile').read()),
+                'typedfile': ('bazfile.bin', open('bazfile').read(),
+                              'image/jpeg'),
+                'nonamefile': 'contents of nonamefile field',
+            }
+
+        When uploading a file, providing a filename (the first parameter of the
+        tuple) is optional but recommended to best mimick behavior of browsers.
+
+        Note that if ``headers`` are supplied, the 'Content-Type' header will
+        be overwritten because it depends on the dynamic random boundary string
+        which is used to compose the body of the request. The random boundary
+        string can be explicitly set with the ``multipart_boundary`` parameter.
+        """
+        if headers is None:
+            headers = self.headers
+
+        extra_kw = {'headers': {}}
+
+        if fields:
+            if 'body' in urlopen_kw:
+                raise TypeError(
+                    "request got values for both 'fields' and 'body', can only specify one.")
+
+            if encode_multipart:
+                body, content_type = encode_multipart_formdata(fields, boundary=multipart_boundary)
+            else:
+                body, content_type = urlencode(fields), 'application/x-www-form-urlencoded'
+
+            extra_kw['body'] = body
+            extra_kw['headers'] = {'Content-Type': content_type}
+
+        extra_kw['headers'].update(headers)
+        extra_kw.update(urlopen_kw)
+
+        return self.urlopen(method, url, **extra_kw)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py
new file mode 100644
index 0000000..5567903
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/response.py
@@ -0,0 +1,530 @@
+from __future__ import absolute_import
+from contextlib import contextmanager
+import zlib
+import io
+from socket import timeout as SocketTimeout
+from socket import error as SocketError
+
+from ._collections import HTTPHeaderDict
+from .exceptions import (
+    ProtocolError, DecodeError, ReadTimeoutError, ResponseNotChunked
+)
+from .packages.six import string_types as basestring, binary_type, PY3
+from .packages.six.moves import http_client as httplib
+from .connection import HTTPException, BaseSSLError
+from .util.response import is_fp_closed, is_response_to_head
+
+
+class DeflateDecoder(object):
+
+    def __init__(self):
+        self._first_try = True
+        self._data = binary_type()
+        self._obj = zlib.decompressobj()
+
+    def __getattr__(self, name):
+        return getattr(self._obj, name)
+
+    def decompress(self, data):
+        if not data:
+            return data
+
+        if not self._first_try:
+            return self._obj.decompress(data)
+
+        self._data += data
+        try:
+            return self._obj.decompress(data)
+        except zlib.error:
+            self._first_try = False
+            self._obj = zlib.decompressobj(-zlib.MAX_WBITS)
+            try:
+                return self.decompress(self._data)
+            finally:
+                self._data = None
+
+
+class GzipDecoder(object):
+
+    def __init__(self):
+        self._obj = zlib.decompressobj(16 + zlib.MAX_WBITS)
+
+    def __getattr__(self, name):
+        return getattr(self._obj, name)
+
+    def decompress(self, data):
+        if not data:
+            return data
+        return self._obj.decompress(data)
+
+
+def _get_decoder(mode):
+    if mode == 'gzip':
+        return GzipDecoder()
+
+    return DeflateDecoder()
+
+
+class HTTPResponse(io.IOBase):
+    """
+    HTTP Response container.
+
+    Backwards-compatible to httplib's HTTPResponse but the response ``body`` is
+    loaded and decoded on-demand when the ``data`` property is accessed.  This
+    class is also compatible with the Python standard library's :mod:`io`
+    module, and can hence be treated as a readable object in the context of that
+    framework.
+
+    Extra parameters for behaviour not present in httplib.HTTPResponse:
+
+    :param preload_content:
+        If True, the response's body will be preloaded during construction.
+
+    :param decode_content:
+        If True, attempts to decode specific content-encoding's based on headers
+        (like 'gzip' and 'deflate') will be skipped and raw data will be used
+        instead.
+
+    :param original_response:
+        When this HTTPResponse wrapper is generated from an httplib.HTTPResponse
+        object, it's convenient to include the original for debug purposes. It's
+        otherwise unused.
+    """
+
+    CONTENT_DECODERS = ['gzip', 'deflate']
+    REDIRECT_STATUSES = [301, 302, 303, 307, 308]
+
+    def __init__(self, body='', headers=None, status=0, version=0, reason=None,
+                 strict=0, preload_content=True, decode_content=True,
+                 original_response=None, pool=None, connection=None):
+
+        if isinstance(headers, HTTPHeaderDict):
+            self.headers = headers
+        else:
+            self.headers = HTTPHeaderDict(headers)
+        self.status = status
+        self.version = version
+        self.reason = reason
+        self.strict = strict
+        self.decode_content = decode_content
+
+        self._decoder = None
+        self._body = None
+        self._fp = None
+        self._original_response = original_response
+        self._fp_bytes_read = 0
+
+        if body and isinstance(body, (basestring, binary_type)):
+            self._body = body
+
+        self._pool = pool
+        self._connection = connection
+
+        if hasattr(body, 'read'):
+            self._fp = body
+
+        # Are we using the chunked-style of transfer encoding?
+        self.chunked = False
+        self.chunk_left = None
+        tr_enc = self.headers.get('transfer-encoding', '').lower()
+        # Don't incur the penalty of creating a list and then discarding it
+        encodings = (enc.strip() for enc in tr_enc.split(","))
+        if "chunked" in encodings:
+            self.chunked = True
+
+        # If requested, preload the body.
+        if preload_content and not self._body:
+            self._body = self.read(decode_content=decode_content)
+
+    def get_redirect_location(self):
+        """
+        Should we redirect and where to?
+
+        :returns: Truthy redirect location string if we got a redirect status
+            code and valid location. ``None`` if redirect status and no
+            location. ``False`` if not a redirect status code.
+        """
+        if self.status in self.REDIRECT_STATUSES:
+            return self.headers.get('location')
+
+        return False
+
+    def release_conn(self):
+        if not self._pool or not self._connection:
+            return
+
+        self._pool._put_conn(self._connection)
+        self._connection = None
+
+    @property
+    def data(self):
+        # For backwords-compat with earlier urllib3 0.4 and earlier.
+        if self._body:
+            return self._body
+
+        if self._fp:
+            return self.read(cache_content=True)
+
+    @property
+    def connection(self):
+        return self._connection
+
+    def tell(self):
+        """
+        Obtain the number of bytes pulled over the wire so far. May differ from
+        the amount of content returned by :meth:``HTTPResponse.read`` if bytes
+        are encoded on the wire (e.g, compressed).
+        """
+        return self._fp_bytes_read
+
+    def _init_decoder(self):
+        """
+        Set-up the _decoder attribute if necessar.
+        """
+        # Note: content-encoding value should be case-insensitive, per RFC 7230
+        # Section 3.2
+        content_encoding = self.headers.get('content-encoding', '').lower()
+        if self._decoder is None and content_encoding in self.CONTENT_DECODERS:
+            self._decoder = _get_decoder(content_encoding)
+
+    def _decode(self, data, decode_content, flush_decoder):
+        """
+        Decode the data passed in and potentially flush the decoder.
+        """
+        try:
+            if decode_content and self._decoder:
+                data = self._decoder.decompress(data)
+        except (IOError, zlib.error) as e:
+            content_encoding = self.headers.get('content-encoding', '').lower()
+            raise DecodeError(
+                "Received response with content-encoding: %s, but "
+                "failed to decode it." % content_encoding, e)
+
+        if flush_decoder and decode_content:
+            data += self._flush_decoder()
+
+        return data
+
+    def _flush_decoder(self):
+        """
+        Flushes the decoder. Should only be called if the decoder is actually
+        being used.
+        """
+        if self._decoder:
+            buf = self._decoder.decompress(b'')
+            return buf + self._decoder.flush()
+
+        return b''
+
+    @contextmanager
+    def _error_catcher(self):
+        """
+        Catch low-level python exceptions, instead re-raising urllib3
+        variants, so that low-level exceptions are not leaked in the
+        high-level api.
+
+        On exit, release the connection back to the pool.
+        """
+        clean_exit = False
+
+        try:
+            try:
+                yield
+
+            except SocketTimeout:
+                # FIXME: Ideally we'd like to include the url in the ReadTimeoutError but
+                # there is yet no clean way to get at it from this context.
+                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
+
+            except BaseSSLError as e:
+                # FIXME: Is there a better way to differentiate between SSLErrors?
+                if 'read operation timed out' not in str(e):  # Defensive:
+                    # This shouldn't happen but just in case we're missing an edge
+                    # case, let's avoid swallowing SSL errors.
+                    raise
+
+                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
+
+            except (HTTPException, SocketError) as e:
+                # This includes IncompleteRead.
+                raise ProtocolError('Connection broken: %r' % e, e)
+
+            # If no exception is thrown, we should avoid cleaning up
+            # unnecessarily.
+            clean_exit = True
+        finally:
+            # If we didn't terminate cleanly, we need to throw away our
+            # connection.
+            if not clean_exit:
+                # The response may not be closed but we're not going to use it
+                # anymore so close it now to ensure that the connection is
+                # released back to the pool.
+                if self._original_response:
+                    self._original_response.close()
+
+                # Closing the response may not actually be sufficient to close
+                # everything, so if we have a hold of the connection close that
+                # too.
+                if self._connection:
+                    self._connection.close()
+
+            # If we hold the original response but it's closed now, we should
+            # return the connection back to the pool.
+            if self._original_response and self._original_response.isclosed():
+                self.release_conn()
+
+    def read(self, amt=None, decode_content=None, cache_content=False):
+        """
+        Similar to :meth:`httplib.HTTPResponse.read`, but with two additional
+        parameters: ``decode_content`` and ``cache_content``.
+
+        :param amt:
+            How much of the content to read. If specified, caching is skipped
+            because it doesn't make sense to cache partial content as the full
+            response.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+
+        :param cache_content:
+            If True, will save the returned data such that the same result is
+            returned despite of the state of the underlying file object. This
+            is useful if you want the ``.data`` property to continue working
+            after having ``.read()`` the file object. (Overridden if ``amt`` is
+            set.)
+        """
+        self._init_decoder()
+        if decode_content is None:
+            decode_content = self.decode_content
+
+        if self._fp is None:
+            return
+
+        flush_decoder = False
+        data = None
+
+        with self._error_catcher():
+            if amt is None:
+                # cStringIO doesn't like amt=None
+                data = self._fp.read()
+                flush_decoder = True
+            else:
+                cache_content = False
+                data = self._fp.read(amt)
+                if amt != 0 and not data:  # Platform-specific: Buggy versions of Python.
+                    # Close the connection when no data is returned
+                    #
+                    # This is redundant to what httplib/http.client _should_
+                    # already do.  However, versions of python released before
+                    # December 15, 2012 (http://bugs.python.org/issue16298) do
+                    # not properly close the connection in all cases. There is
+                    # no harm in redundantly calling close.
+                    self._fp.close()
+                    flush_decoder = True
+
+        if data:
+            self._fp_bytes_read += len(data)
+
+            data = self._decode(data, decode_content, flush_decoder)
+
+            if cache_content:
+                self._body = data
+
+        return data
+
+    def stream(self, amt=2**16, decode_content=None):
+        """
+        A generator wrapper for the read() method. A call will block until
+        ``amt`` bytes have been read from the connection or until the
+        connection is closed.
+
+        :param amt:
+            How much of the content to read. The generator will return up to
+            much data per iteration, but may return less. This is particularly
+            likely when using compressed data. However, the empty string will
+            never be returned.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+        """
+        if self.chunked:
+            for line in self.read_chunked(amt, decode_content=decode_content):
+                yield line
+        else:
+            while not is_fp_closed(self._fp):
+                data = self.read(amt=amt, decode_content=decode_content)
+
+                if data:
+                    yield data
+
+    @classmethod
+    def from_httplib(ResponseCls, r, **response_kw):
+        """
+        Given an :class:`httplib.HTTPResponse` instance ``r``, return a
+        corresponding :class:`urllib3.response.HTTPResponse` object.
+
+        Remaining parameters are passed to the HTTPResponse constructor, along
+        with ``original_response=r``.
+        """
+        headers = r.msg
+
+        if not isinstance(headers, HTTPHeaderDict):
+            if PY3:  # Python 3
+                headers = HTTPHeaderDict(headers.items())
+            else:  # Python 2
+                headers = HTTPHeaderDict.from_httplib(headers)
+
+        # HTTPResponse objects in Python 3 don't have a .strict attribute
+        strict = getattr(r, 'strict', 0)
+        resp = ResponseCls(body=r,
+                           headers=headers,
+                           status=r.status,
+                           version=r.version,
+                           reason=r.reason,
+                           strict=strict,
+                           original_response=r,
+                           **response_kw)
+        return resp
+
+    # Backwards-compatibility methods for httplib.HTTPResponse
+    def getheaders(self):
+        return self.headers
+
+    def getheader(self, name, default=None):
+        return self.headers.get(name, default)
+
+    # Overrides from io.IOBase
+    def close(self):
+        if not self.closed:
+            self._fp.close()
+
+        if self._connection:
+            self._connection.close()
+
+    @property
+    def closed(self):
+        if self._fp is None:
+            return True
+        elif hasattr(self._fp, 'closed'):
+            return self._fp.closed
+        elif hasattr(self._fp, 'isclosed'):  # Python 2
+            return self._fp.isclosed()
+        else:
+            return True
+
+    def fileno(self):
+        if self._fp is None:
+            raise IOError("HTTPResponse has no file to get a fileno from")
+        elif hasattr(self._fp, "fileno"):
+            return self._fp.fileno()
+        else:
+            raise IOError("The file-like object this HTTPResponse is wrapped "
+                          "around has no file descriptor")
+
+    def flush(self):
+        if self._fp is not None and hasattr(self._fp, 'flush'):
+            return self._fp.flush()
+
+    def readable(self):
+        # This method is required for `io` module compatibility.
+        return True
+
+    def readinto(self, b):
+        # This method is required for `io` module compatibility.
+        temp = self.read(len(b))
+        if len(temp) == 0:
+            return 0
+        else:
+            b[:len(temp)] = temp
+            return len(temp)
+
+    def _update_chunk_length(self):
+        # First, we'll figure out length of a chunk and then
+        # we'll try to read it from socket.
+        if self.chunk_left is not None:
+            return
+        line = self._fp.fp.readline()
+        line = line.split(b';', 1)[0]
+        try:
+            self.chunk_left = int(line, 16)
+        except ValueError:
+            # Invalid chunked protocol response, abort.
+            self.close()
+            raise httplib.IncompleteRead(line)
+
+    def _handle_chunk(self, amt):
+        returned_chunk = None
+        if amt is None:
+            chunk = self._fp._safe_read(self.chunk_left)
+            returned_chunk = chunk
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+        elif amt < self.chunk_left:
+            value = self._fp._safe_read(amt)
+            self.chunk_left = self.chunk_left - amt
+            returned_chunk = value
+        elif amt == self.chunk_left:
+            value = self._fp._safe_read(amt)
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+            returned_chunk = value
+        else:  # amt > self.chunk_left
+            returned_chunk = self._fp._safe_read(self.chunk_left)
+            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
+            self.chunk_left = None
+        return returned_chunk
+
+    def read_chunked(self, amt=None, decode_content=None):
+        """
+        Similar to :meth:`HTTPResponse.read`, but with an additional
+        parameter: ``decode_content``.
+
+        :param decode_content:
+            If True, will attempt to decode the body based on the
+            'content-encoding' header.
+        """
+        self._init_decoder()
+        # FIXME: Rewrite this method and make it a class with a better structured logic.
+        if not self.chunked:
+            raise ResponseNotChunked(
+                "Response is not chunked. "
+                "Header 'transfer-encoding: chunked' is missing.")
+
+        # Don't bother reading the body of a HEAD request.
+        if self._original_response and is_response_to_head(self._original_response):
+            self._original_response.close()
+            return
+
+        with self._error_catcher():
+            while True:
+                self._update_chunk_length()
+                if self.chunk_left == 0:
+                    break
+                chunk = self._handle_chunk(amt)
+                decoded = self._decode(chunk, decode_content=decode_content,
+                                       flush_decoder=False)
+                if decoded:
+                    yield decoded
+
+            if decode_content:
+                # On CPython and PyPy, we should never need to flush the
+                # decoder. However, on Jython we *might* need to, so
+                # lets defensively do it anyway.
+                decoded = self._flush_decoder()
+                if decoded:  # Platform-specific: Jython.
+                    yield decoded
+
+            # Chunk content ends with \r\n: discard it.
+            while True:
+                line = self._fp.fp.readline()
+                if not line:
+                    # Some sites may not end with '\r\n'.
+                    break
+                if line == b'\r\n':
+                    break
+
+            # We read everything; close the "file".
+            if self._original_response:
+                self._original_response.close()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py
new file mode 100644
index 0000000..4778cf9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/__init__.py
@@ -0,0 +1,46 @@
+from __future__ import absolute_import
+# For backwards compatibility, provide imports that used to be here.
+from .connection import is_connection_dropped
+from .request import make_headers
+from .response import is_fp_closed
+from .ssl_ import (
+    SSLContext,
+    HAS_SNI,
+    IS_PYOPENSSL,
+    assert_fingerprint,
+    resolve_cert_reqs,
+    resolve_ssl_version,
+    ssl_wrap_socket,
+)
+from .timeout import (
+    current_time,
+    Timeout,
+)
+
+from .retry import Retry
+from .url import (
+    get_host,
+    parse_url,
+    split_first,
+    Url,
+)
+
+__all__ = (
+    'HAS_SNI',
+    'IS_PYOPENSSL',
+    'SSLContext',
+    'Retry',
+    'Timeout',
+    'Url',
+    'assert_fingerprint',
+    'current_time',
+    'is_connection_dropped',
+    'is_fp_closed',
+    'get_host',
+    'parse_url',
+    'make_headers',
+    'resolve_cert_reqs',
+    'resolve_ssl_version',
+    'split_first',
+    'ssl_wrap_socket',
+)
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py
new file mode 100644
index 0000000..5e76135
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/connection.py
@@ -0,0 +1,144 @@
+from __future__ import absolute_import
+import socket
+try:
+    from select import poll, POLLIN
+except ImportError:  # `poll` doesn't exist on OSX and other platforms
+    poll = False
+    try:
+        from select import select
+    except ImportError:  # `select` doesn't exist on AppEngine.
+        select = False
+
+
+def is_connection_dropped(conn):  # Platform-specific
+    """
+    Returns True if the connection is dropped and should be closed.
+
+    :param conn:
+        :class:`httplib.HTTPConnection` object.
+
+    Note: For platforms like AppEngine, this will always return ``False`` to
+    let the platform handle connection recycling transparently for us.
+    """
+    sock = getattr(conn, 'sock', False)
+    if sock is False:  # Platform-specific: AppEngine
+        return False
+    if sock is None:  # Connection already closed (such as by httplib).
+        return True
+
+    if not poll:
+        if not select:  # Platform-specific: AppEngine
+            return False
+
+        try:
+            return select([sock], [], [], 0.0)[0]
+        except socket.error:
+            return True
+
+    # This version is better on platforms that support it.
+    p = poll()
+    p.register(sock, POLLIN)
+    for (fno, ev) in p.poll(0.0):
+        if fno == sock.fileno():
+            # Either data is buffered (bad), or the connection is dropped.
+            return True
+
+
+# This function is copied from socket.py in the Python 2.7 standard
+# library test suite. Added to its signature is only `socket_options`.
+# One additional modification is that we avoid binding to IPv6 servers
+# discovered in DNS if the system doesn't have IPv6 functionality.
+def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
+                      source_address=None, socket_options=None):
+    """Connect to *address* and return the socket object.
+
+    Convenience function.  Connect to *address* (a 2-tuple ``(host,
+    port)``) and return the socket object.  Passing the optional
+    *timeout* parameter will set the timeout on the socket instance
+    before attempting to connect.  If no *timeout* is supplied, the
+    global default timeout setting returned by :func:`getdefaulttimeout`
+    is used.  If *source_address* is set it must be a tuple of (host, port)
+    for the socket to bind as a source address before making the connection.
+    An host of '' or port 0 tells the OS to use the default.
+    """
+
+    host, port = address
+    if host.startswith('['):
+        host = host.strip('[]')
+    err = None
+
+    # Using the value from allowed_gai_family() in the context of getaddrinfo lets
+    # us select whether to work with IPv4 DNS records, IPv6 records, or both.
+    # The original create_connection function always returns all records.
+    family = allowed_gai_family()
+
+    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
+        af, socktype, proto, canonname, sa = res
+        sock = None
+        try:
+            sock = socket.socket(af, socktype, proto)
+
+            # If provided, set socket level options before connecting.
+            _set_socket_options(sock, socket_options)
+
+            if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
+                sock.settimeout(timeout)
+            if source_address:
+                sock.bind(source_address)
+            sock.connect(sa)
+            return sock
+
+        except socket.error as e:
+            err = e
+            if sock is not None:
+                sock.close()
+                sock = None
+
+    if err is not None:
+        raise err
+
+    raise socket.error("getaddrinfo returns an empty list")
+
+
+def _set_socket_options(sock, options):
+    if options is None:
+        return
+
+    for opt in options:
+        sock.setsockopt(*opt)
+
+
+def allowed_gai_family():
+    """This function is designed to work in the context of
+    getaddrinfo, where family=socket.AF_UNSPEC is the default and
+    will perform a DNS search for both IPv6 and IPv4 records."""
+
+    family = socket.AF_INET
+    if HAS_IPV6:
+        family = socket.AF_UNSPEC
+    return family
+
+
+def _has_ipv6(host):
+    """ Returns True if the system can bind an IPv6 address. """
+    sock = None
+    has_ipv6 = False
+
+    if socket.has_ipv6:
+        # has_ipv6 returns true if cPython was compiled with IPv6 support.
+        # It does not tell us if the system has IPv6 support enabled. To
+        # determine that we must bind to an IPv6 address.
+        # https://github.com/shazow/urllib3/pull/611
+        # https://bugs.python.org/issue658327
+        try:
+            sock = socket.socket(socket.AF_INET6)
+            sock.bind((host, 0))
+            has_ipv6 = True
+        except Exception:
+            pass
+
+    if sock:
+        sock.close()
+    return has_ipv6
+
+HAS_IPV6 = _has_ipv6('::1')
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py
new file mode 100644
index 0000000..7377931
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/request.py
@@ -0,0 +1,72 @@
+from __future__ import absolute_import
+from base64 import b64encode
+
+from ..packages.six import b
+
+ACCEPT_ENCODING = 'gzip,deflate'
+
+
+def make_headers(keep_alive=None, accept_encoding=None, user_agent=None,
+                 basic_auth=None, proxy_basic_auth=None, disable_cache=None):
+    """
+    Shortcuts for generating request headers.
+
+    :param keep_alive:
+        If ``True``, adds 'connection: keep-alive' header.
+
+    :param accept_encoding:
+        Can be a boolean, list, or string.
+        ``True`` translates to 'gzip,deflate'.
+        List will get joined by comma.
+        String will be used as provided.
+
+    :param user_agent:
+        String representing the user-agent you want, such as
+        "python-urllib3/0.6"
+
+    :param basic_auth:
+        Colon-separated username:password string for 'authorization: basic ...'
+        auth header.
+
+    :param proxy_basic_auth:
+        Colon-separated username:password string for 'proxy-authorization: basic ...'
+        auth header.
+
+    :param disable_cache:
+        If ``True``, adds 'cache-control: no-cache' header.
+
+    Example::
+
+        >>> make_headers(keep_alive=True, user_agent="Batman/1.0")
+        {'connection': 'keep-alive', 'user-agent': 'Batman/1.0'}
+        >>> make_headers(accept_encoding=True)
+        {'accept-encoding': 'gzip,deflate'}
+    """
+    headers = {}
+    if accept_encoding:
+        if isinstance(accept_encoding, str):
+            pass
+        elif isinstance(accept_encoding, list):
+            accept_encoding = ','.join(accept_encoding)
+        else:
+            accept_encoding = ACCEPT_ENCODING
+        headers['accept-encoding'] = accept_encoding
+
+    if user_agent:
+        headers['user-agent'] = user_agent
+
+    if keep_alive:
+        headers['connection'] = 'keep-alive'
+
+    if basic_auth:
+        headers['authorization'] = 'Basic ' + \
+            b64encode(b(basic_auth)).decode('utf-8')
+
+    if proxy_basic_auth:
+        headers['proxy-authorization'] = 'Basic ' + \
+            b64encode(b(proxy_basic_auth)).decode('utf-8')
+
+    if disable_cache:
+        headers['cache-control'] = 'no-cache'
+
+    return headers
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py
new file mode 100644
index 0000000..0b5c75c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/response.py
@@ -0,0 +1,74 @@
+from __future__ import absolute_import
+from ..packages.six.moves import http_client as httplib
+
+from ..exceptions import HeaderParsingError
+
+
+def is_fp_closed(obj):
+    """
+    Checks whether a given file-like object is closed.
+
+    :param obj:
+        The file-like object to check.
+    """
+
+    try:
+        # Check via the official file-like-object way.
+        return obj.closed
+    except AttributeError:
+        pass
+
+    try:
+        # Check if the object is a container for another file-like object that
+        # gets released on exhaustion (e.g. HTTPResponse).
+        return obj.fp is None
+    except AttributeError:
+        pass
+
+    raise ValueError("Unable to determine whether fp is closed.")
+
+
+def assert_header_parsing(headers):
+    """
+    Asserts whether all headers have been successfully parsed.
+    Extracts encountered errors from the result of parsing headers.
+
+    Only works on Python 3.
+
+    :param headers: Headers to verify.
+    :type headers: `httplib.HTTPMessage`.
+
+    :raises urllib3.exceptions.HeaderParsingError:
+        If parsing errors are found.
+    """
+
+    # This will fail silently if we pass in the wrong kind of parameter.
+    # To make debugging easier add an explicit check.
+    if not isinstance(headers, httplib.HTTPMessage):
+        raise TypeError('expected httplib.Message, got {0}.'.format(
+            type(headers)))
+
+    defects = getattr(headers, 'defects', None)
+    get_payload = getattr(headers, 'get_payload', None)
+
+    unparsed_data = None
+    if get_payload:  # Platform-specific: Python 3.
+        unparsed_data = get_payload()
+
+    if defects or unparsed_data:
+        raise HeaderParsingError(defects=defects, unparsed_data=unparsed_data)
+
+
+def is_response_to_head(response):
+    """
+    Checks whether the request of a response has been a HEAD-request.
+    Handles the quirks of AppEngine.
+
+    :param conn:
+    :type conn: :class:`httplib.HTTPResponse`
+    """
+    # FIXME: Can we do this somehow without accessing private httplib _method?
+    method = response._method
+    if isinstance(method, int):  # Platform-specific: Appengine
+        return method == 3
+    return method.upper() == 'HEAD'
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py
new file mode 100644
index 0000000..d379833
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/retry.py
@@ -0,0 +1,300 @@
+from __future__ import absolute_import
+import time
+import logging
+
+from ..exceptions import (
+    ConnectTimeoutError,
+    MaxRetryError,
+    ProtocolError,
+    ReadTimeoutError,
+    ResponseError,
+)
+from ..packages import six
+
+
+log = logging.getLogger(__name__)
+
+
+class Retry(object):
+    """ Retry configuration.
+
+    Each retry attempt will create a new Retry object with updated values, so
+    they can be safely reused.
+
+    Retries can be defined as a default for a pool::
+
+        retries = Retry(connect=5, read=2, redirect=5)
+        http = PoolManager(retries=retries)
+        response = http.request('GET', 'http://example.com/')
+
+    Or per-request (which overrides the default for the pool)::
+
+        response = http.request('GET', 'http://example.com/', retries=Retry(10))
+
+    Retries can be disabled by passing ``False``::
+
+        response = http.request('GET', 'http://example.com/', retries=False)
+
+    Errors will be wrapped in :class:`~urllib3.exceptions.MaxRetryError` unless
+    retries are disabled, in which case the causing exception will be raised.
+
+    :param int total:
+        Total number of retries to allow. Takes precedence over other counts.
+
+        Set to ``None`` to remove this constraint and fall back on other
+        counts. It's a good idea to set this to some sensibly-high value to
+        account for unexpected edge cases and avoid infinite retry loops.
+
+        Set to ``0`` to fail on the first retry.
+
+        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
+
+    :param int connect:
+        How many connection-related errors to retry on.
+
+        These are errors raised before the request is sent to the remote server,
+        which we assume has not triggered the server to process the request.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+    :param int read:
+        How many times to retry on read errors.
+
+        These errors are raised after the request was sent to the server, so the
+        request may have side-effects.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+    :param int redirect:
+        How many redirects to perform. Limit this to avoid infinite redirect
+        loops.
+
+        A redirect is a HTTP response with a status code 301, 302, 303, 307 or
+        308.
+
+        Set to ``0`` to fail on the first retry of this type.
+
+        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
+
+    :param iterable method_whitelist:
+        Set of uppercased HTTP method verbs that we should retry on.
+
+        By default, we only retry on methods which are considered to be
+        idempotent (multiple requests with the same parameters end with the
+        same state). See :attr:`Retry.DEFAULT_METHOD_WHITELIST`.
+
+        Set to a ``False`` value to retry on any verb.
+
+    :param iterable status_forcelist:
+        A set of integer HTTP status codes that we should force a retry on.
+        A retry is initiated if the request method is in ``method_whitelist``
+        and the response status code is in ``status_forcelist``.
+
+        By default, this is disabled with ``None``.
+
+    :param float backoff_factor:
+        A backoff factor to apply between attempts after the second try
+        (most errors are resolved immediately by a second try without a
+        delay). urllib3 will sleep for::
+
+            {backoff factor} * (2 ^ ({number of total retries} - 1))
+
+        seconds. If the backoff_factor is 0.1, then :func:`.sleep` will sleep
+        for [0.0s, 0.2s, 0.4s, ...] between retries. It will never be longer
+        than :attr:`Retry.BACKOFF_MAX`.
+
+        By default, backoff is disabled (set to 0).
+
+    :param bool raise_on_redirect: Whether, if the number of redirects is
+        exhausted, to raise a MaxRetryError, or to return a response with a
+        response code in the 3xx range.
+
+    :param bool raise_on_status: Similar meaning to ``raise_on_redirect``:
+        whether we should raise an exception, or return a response,
+        if status falls in ``status_forcelist`` range and retries have
+        been exhausted.
+    """
+
+    DEFAULT_METHOD_WHITELIST = frozenset([
+        'HEAD', 'GET', 'PUT', 'DELETE', 'OPTIONS', 'TRACE'])
+
+    #: Maximum backoff time.
+    BACKOFF_MAX = 120
+
+    def __init__(self, total=10, connect=None, read=None, redirect=None,
+                 method_whitelist=DEFAULT_METHOD_WHITELIST, status_forcelist=None,
+                 backoff_factor=0, raise_on_redirect=True, raise_on_status=True,
+                 _observed_errors=0):
+
+        self.total = total
+        self.connect = connect
+        self.read = read
+
+        if redirect is False or total is False:
+            redirect = 0
+            raise_on_redirect = False
+
+        self.redirect = redirect
+        self.status_forcelist = status_forcelist or set()
+        self.method_whitelist = method_whitelist
+        self.backoff_factor = backoff_factor
+        self.raise_on_redirect = raise_on_redirect
+        self.raise_on_status = raise_on_status
+        self._observed_errors = _observed_errors  # TODO: use .history instead?
+
+    def new(self, **kw):
+        params = dict(
+            total=self.total,
+            connect=self.connect, read=self.read, redirect=self.redirect,
+            method_whitelist=self.method_whitelist,
+            status_forcelist=self.status_forcelist,
+            backoff_factor=self.backoff_factor,
+            raise_on_redirect=self.raise_on_redirect,
+            raise_on_status=self.raise_on_status,
+            _observed_errors=self._observed_errors,
+        )
+        params.update(kw)
+        return type(self)(**params)
+
+    @classmethod
+    def from_int(cls, retries, redirect=True, default=None):
+        """ Backwards-compatibility for the old retries format."""
+        if retries is None:
+            retries = default if default is not None else cls.DEFAULT
+
+        if isinstance(retries, Retry):
+            return retries
+
+        redirect = bool(redirect) and None
+        new_retries = cls(retries, redirect=redirect)
+        log.debug("Converted retries value: %r -> %r", retries, new_retries)
+        return new_retries
+
+    def get_backoff_time(self):
+        """ Formula for computing the current backoff
+
+        :rtype: float
+        """
+        if self._observed_errors <= 1:
+            return 0
+
+        backoff_value = self.backoff_factor * (2 ** (self._observed_errors - 1))
+        return min(self.BACKOFF_MAX, backoff_value)
+
+    def sleep(self):
+        """ Sleep between retry attempts using an exponential backoff.
+
+        By default, the backoff factor is 0 and this method will return
+        immediately.
+        """
+        backoff = self.get_backoff_time()
+        if backoff <= 0:
+            return
+        time.sleep(backoff)
+
+    def _is_connection_error(self, err):
+        """ Errors when we're fairly sure that the server did not receive the
+        request, so it should be safe to retry.
+        """
+        return isinstance(err, ConnectTimeoutError)
+
+    def _is_read_error(self, err):
+        """ Errors that occur after the request has been started, so we should
+        assume that the server began processing it.
+        """
+        return isinstance(err, (ReadTimeoutError, ProtocolError))
+
+    def is_forced_retry(self, method, status_code):
+        """ Is this method/status code retryable? (Based on method/codes whitelists)
+        """
+        if self.method_whitelist and method.upper() not in self.method_whitelist:
+            return False
+
+        return self.status_forcelist and status_code in self.status_forcelist
+
+    def is_exhausted(self):
+        """ Are we out of retries? """
+        retry_counts = (self.total, self.connect, self.read, self.redirect)
+        retry_counts = list(filter(None, retry_counts))
+        if not retry_counts:
+            return False
+
+        return min(retry_counts) < 0
+
+    def increment(self, method=None, url=None, response=None, error=None,
+                  _pool=None, _stacktrace=None):
+        """ Return a new Retry object with incremented retry counters.
+
+        :param response: A response object, or None, if the server did not
+            return a response.
+        :type response: :class:`~urllib3.response.HTTPResponse`
+        :param Exception error: An error encountered during the request, or
+            None if the response was received successfully.
+
+        :return: A new ``Retry`` object.
+        """
+        if self.total is False and error:
+            # Disabled, indicate to re-raise the error.
+            raise six.reraise(type(error), error, _stacktrace)
+
+        total = self.total
+        if total is not None:
+            total -= 1
+
+        _observed_errors = self._observed_errors
+        connect = self.connect
+        read = self.read
+        redirect = self.redirect
+        cause = 'unknown'
+
+        if error and self._is_connection_error(error):
+            # Connect retry?
+            if connect is False:
+                raise six.reraise(type(error), error, _stacktrace)
+            elif connect is not None:
+                connect -= 1
+            _observed_errors += 1
+
+        elif error and self._is_read_error(error):
+            # Read retry?
+            if read is False:
+                raise six.reraise(type(error), error, _stacktrace)
+            elif read is not None:
+                read -= 1
+            _observed_errors += 1
+
+        elif response and response.get_redirect_location():
+            # Redirect retry?
+            if redirect is not None:
+                redirect -= 1
+            cause = 'too many redirects'
+
+        else:
+            # Incrementing because of a server error like a 500 in
+            # status_forcelist and a the given method is in the whitelist
+            _observed_errors += 1
+            cause = ResponseError.GENERIC_ERROR
+            if response and response.status:
+                cause = ResponseError.SPECIFIC_ERROR.format(
+                    status_code=response.status)
+
+        new_retry = self.new(
+            total=total,
+            connect=connect, read=read, redirect=redirect,
+            _observed_errors=_observed_errors)
+
+        if new_retry.is_exhausted():
+            raise MaxRetryError(_pool, url, error or ResponseError(cause))
+
+        log.debug("Incremented Retry for (url='%s'): %r", url, new_retry)
+
+        return new_retry
+
+    def __repr__(self):
+        return ('{cls.__name__}(total={self.total}, connect={self.connect}, '
+                'read={self.read}, redirect={self.redirect})').format(
+                    cls=type(self), self=self)
+
+
+# For backwards compatibility (equivalent to pre-v1.9):
+Retry.DEFAULT = Retry(3)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py
new file mode 100644
index 0000000..4a64d7e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/ssl_.py
@@ -0,0 +1,320 @@
+from __future__ import absolute_import
+import errno
+import warnings
+import hmac
+
+from binascii import hexlify, unhexlify
+from hashlib import md5, sha1, sha256
+
+from ..exceptions import SSLError, InsecurePlatformWarning, SNIMissingWarning
+
+
+SSLContext = None
+HAS_SNI = False
+create_default_context = None
+IS_PYOPENSSL = False
+
+# Maps the length of a digest to a possible hash function producing this digest
+HASHFUNC_MAP = {
+    32: md5,
+    40: sha1,
+    64: sha256,
+}
+
+
+def _const_compare_digest_backport(a, b):
+    """
+    Compare two digests of equal length in constant time.
+
+    The digests must be of type str/bytes.
+    Returns True if the digests match, and False otherwise.
+    """
+    result = abs(len(a) - len(b))
+    for l, r in zip(bytearray(a), bytearray(b)):
+        result |= l ^ r
+    return result == 0
+
+
+_const_compare_digest = getattr(hmac, 'compare_digest',
+                                _const_compare_digest_backport)
+
+
+try:  # Test for SSL features
+    import ssl
+    from ssl import wrap_socket, CERT_NONE, PROTOCOL_SSLv23
+    from ssl import HAS_SNI  # Has SNI?
+except ImportError:
+    pass
+
+
+try:
+    from ssl import OP_NO_SSLv2, OP_NO_SSLv3, OP_NO_COMPRESSION
+except ImportError:
+    OP_NO_SSLv2, OP_NO_SSLv3 = 0x1000000, 0x2000000
+    OP_NO_COMPRESSION = 0x20000
+
+# A secure default.
+# Sources for more information on TLS ciphers:
+#
+# - https://wiki.mozilla.org/Security/Server_Side_TLS
+# - https://www.ssllabs.com/projects/best-practices/index.html
+# - https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
+#
+# The general intent is:
+# - Prefer cipher suites that offer perfect forward secrecy (DHE/ECDHE),
+# - prefer ECDHE over DHE for better performance,
+# - prefer any AES-GCM over any AES-CBC for better performance and security,
+# - use 3DES as fallback which is secure but slow,
+# - disable NULL authentication, MD5 MACs and DSS for security reasons.
+DEFAULT_CIPHERS = (
+    'ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+HIGH:'
+    'DH+HIGH:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+HIGH:RSA+3DES:!aNULL:'
+    '!eNULL:!MD5'
+)
+
+try:
+    from ssl import SSLContext  # Modern SSL?
+except ImportError:
+    import sys
+
+    class SSLContext(object):  # Platform-specific: Python 2 & 3.1
+        supports_set_ciphers = ((2, 7) <= sys.version_info < (3,) or
+                                (3, 2) <= sys.version_info)
+
+        def __init__(self, protocol_version):
+            self.protocol = protocol_version
+            # Use default values from a real SSLContext
+            self.check_hostname = False
+            self.verify_mode = ssl.CERT_NONE
+            self.ca_certs = None
+            self.options = 0
+            self.certfile = None
+            self.keyfile = None
+            self.ciphers = None
+
+        def load_cert_chain(self, certfile, keyfile):
+            self.certfile = certfile
+            self.keyfile = keyfile
+
+        def load_verify_locations(self, cafile=None, capath=None):
+            self.ca_certs = cafile
+
+            if capath is not None:
+                raise SSLError("CA directories not supported in older Pythons")
+
+        def set_ciphers(self, cipher_suite):
+            if not self.supports_set_ciphers:
+                raise TypeError(
+                    'Your version of Python does not support setting '
+                    'a custom cipher suite. Please upgrade to Python '
+                    '2.7, 3.2, or later if you need this functionality.'
+                )
+            self.ciphers = cipher_suite
+
+        def wrap_socket(self, socket, server_hostname=None, server_side=False):
+            warnings.warn(
+                'A true SSLContext object is not available. This prevents '
+                'urllib3 from configuring SSL appropriately and may cause '
+                'certain SSL connections to fail. You can upgrade to a newer '
+                'version of Python to solve this. For more information, see '
+                'https://urllib3.readthedocs.io/en/latest/security.html'
+                '#insecureplatformwarning.',
+                InsecurePlatformWarning
+            )
+            kwargs = {
+                'keyfile': self.keyfile,
+                'certfile': self.certfile,
+                'ca_certs': self.ca_certs,
+                'cert_reqs': self.verify_mode,
+                'ssl_version': self.protocol,
+                'server_side': server_side,
+            }
+            if self.supports_set_ciphers:  # Platform-specific: Python 2.7+
+                return wrap_socket(socket, ciphers=self.ciphers, **kwargs)
+            else:  # Platform-specific: Python 2.6
+                return wrap_socket(socket, **kwargs)
+
+
+def assert_fingerprint(cert, fingerprint):
+    """
+    Checks if given fingerprint matches the supplied certificate.
+
+    :param cert:
+        Certificate as bytes object.
+    :param fingerprint:
+        Fingerprint as string of hexdigits, can be interspersed by colons.
+    """
+
+    fingerprint = fingerprint.replace(':', '').lower()
+    digest_length = len(fingerprint)
+    hashfunc = HASHFUNC_MAP.get(digest_length)
+    if not hashfunc:
+        raise SSLError(
+            'Fingerprint of invalid length: {0}'.format(fingerprint))
+
+    # We need encode() here for py32; works on py2 and p33.
+    fingerprint_bytes = unhexlify(fingerprint.encode())
+
+    cert_digest = hashfunc(cert).digest()
+
+    if not _const_compare_digest(cert_digest, fingerprint_bytes):
+        raise SSLError('Fingerprints did not match. Expected "{0}", got "{1}".'
+                       .format(fingerprint, hexlify(cert_digest)))
+
+
+def resolve_cert_reqs(candidate):
+    """
+    Resolves the argument to a numeric constant, which can be passed to
+    the wrap_socket function/method from the ssl module.
+    Defaults to :data:`ssl.CERT_NONE`.
+    If given a string it is assumed to be the name of the constant in the
+    :mod:`ssl` module or its abbrevation.
+    (So you can specify `REQUIRED` instead of `CERT_REQUIRED`.
+    If it's neither `None` nor a string we assume it is already the numeric
+    constant which can directly be passed to wrap_socket.
+    """
+    if candidate is None:
+        return CERT_NONE
+
+    if isinstance(candidate, str):
+        res = getattr(ssl, candidate, None)
+        if res is None:
+            res = getattr(ssl, 'CERT_' + candidate)
+        return res
+
+    return candidate
+
+
+def resolve_ssl_version(candidate):
+    """
+    like resolve_cert_reqs
+    """
+    if candidate is None:
+        return PROTOCOL_SSLv23
+
+    if isinstance(candidate, str):
+        res = getattr(ssl, candidate, None)
+        if res is None:
+            res = getattr(ssl, 'PROTOCOL_' + candidate)
+        return res
+
+    return candidate
+
+
+def create_urllib3_context(ssl_version=None, cert_reqs=None,
+                           options=None, ciphers=None):
+    """All arguments have the same meaning as ``ssl_wrap_socket``.
+
+    By default, this function does a lot of the same work that
+    ``ssl.create_default_context`` does on Python 3.4+. It:
+
+    - Disables SSLv2, SSLv3, and compression
+    - Sets a restricted set of server ciphers
+
+    If you wish to enable SSLv3, you can do::
+
+        from urllib3.util import ssl_
+        context = ssl_.create_urllib3_context()
+        context.options &= ~ssl_.OP_NO_SSLv3
+
+    You can do the same to enable compression (substituting ``COMPRESSION``
+    for ``SSLv3`` in the last line above).
+
+    :param ssl_version:
+        The desired protocol version to use. This will default to
+        PROTOCOL_SSLv23 which will negotiate the highest protocol that both
+        the server and your installation of OpenSSL support.
+    :param cert_reqs:
+        Whether to require the certificate verification. This defaults to
+        ``ssl.CERT_REQUIRED``.
+    :param options:
+        Specific OpenSSL options. These default to ``ssl.OP_NO_SSLv2``,
+        ``ssl.OP_NO_SSLv3``, ``ssl.OP_NO_COMPRESSION``.
+    :param ciphers:
+        Which cipher suites to allow the server to select.
+    :returns:
+        Constructed SSLContext object with specified options
+    :rtype: SSLContext
+    """
+    context = SSLContext(ssl_version or ssl.PROTOCOL_SSLv23)
+
+    # Setting the default here, as we may have no ssl module on import
+    cert_reqs = ssl.CERT_REQUIRED if cert_reqs is None else cert_reqs
+
+    if options is None:
+        options = 0
+        # SSLv2 is easily broken and is considered harmful and dangerous
+        options |= OP_NO_SSLv2
+        # SSLv3 has several problems and is now dangerous
+        options |= OP_NO_SSLv3
+        # Disable compression to prevent CRIME attacks for OpenSSL 1.0+
+        # (issue #309)
+        options |= OP_NO_COMPRESSION
+
+    context.options |= options
+
+    if getattr(context, 'supports_set_ciphers', True):  # Platform-specific: Python 2.6
+        context.set_ciphers(ciphers or DEFAULT_CIPHERS)
+
+    context.verify_mode = cert_reqs
+    if getattr(context, 'check_hostname', None) is not None:  # Platform-specific: Python 3.2
+        # We do our own verification, including fingerprints and alternative
+        # hostnames. So disable it here
+        context.check_hostname = False
+    return context
+
+
+def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
+                    ca_certs=None, server_hostname=None,
+                    ssl_version=None, ciphers=None, ssl_context=None,
+                    ca_cert_dir=None):
+    """
+    All arguments except for server_hostname, ssl_context, and ca_cert_dir have
+    the same meaning as they do when using :func:`ssl.wrap_socket`.
+
+    :param server_hostname:
+        When SNI is supported, the expected hostname of the certificate
+    :param ssl_context:
+        A pre-made :class:`SSLContext` object. If none is provided, one will
+        be created using :func:`create_urllib3_context`.
+    :param ciphers:
+        A string of ciphers we wish the client to support. This is not
+        supported on Python 2.6 as the ssl module does not support it.
+    :param ca_cert_dir:
+        A directory containing CA certificates in multiple separate files, as
+        supported by OpenSSL's -CApath flag or the capath argument to
+        SSLContext.load_verify_locations().
+    """
+    context = ssl_context
+    if context is None:
+        context = create_urllib3_context(ssl_version, cert_reqs,
+                                         ciphers=ciphers)
+
+    if ca_certs or ca_cert_dir:
+        try:
+            context.load_verify_locations(ca_certs, ca_cert_dir)
+        except IOError as e:  # Platform-specific: Python 2.6, 2.7, 3.2
+            raise SSLError(e)
+        # Py33 raises FileNotFoundError which subclasses OSError
+        # These are not equivalent unless we check the errno attribute
+        except OSError as e:  # Platform-specific: Python 3.3 and beyond
+            if e.errno == errno.ENOENT:
+                raise SSLError(e)
+            raise
+
+    if certfile:
+        context.load_cert_chain(certfile, keyfile)
+    if HAS_SNI:  # Platform-specific: OpenSSL with enabled SNI
+        return context.wrap_socket(sock, server_hostname=server_hostname)
+
+    warnings.warn(
+        'An HTTPS request has been made, but the SNI (Subject Name '
+        'Indication) extension to TLS is not available on this platform. '
+        'This may cause the server to present an incorrect TLS '
+        'certificate, which can cause validation failures. You can upgrade to '
+        'a newer version of Python to solve this. For more information, see '
+        'https://urllib3.readthedocs.io/en/latest/security.html'
+        '#snimissingwarning.',
+        SNIMissingWarning
+    )
+    return context.wrap_socket(sock)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py
new file mode 100644
index 0000000..ff62f47
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/timeout.py
@@ -0,0 +1,242 @@
+from __future__ import absolute_import
+# The default socket timeout, used by httplib to indicate that no timeout was
+# specified by the user
+from socket import _GLOBAL_DEFAULT_TIMEOUT
+import time
+
+from ..exceptions import TimeoutStateError
+
+# A sentinel value to indicate that no timeout was specified by the user in
+# urllib3
+_Default = object()
+
+
+def current_time():
+    """
+    Retrieve the current time. This function is mocked out in unit testing.
+    """
+    return time.time()
+
+
+class Timeout(object):
+    """ Timeout configuration.
+
+    Timeouts can be defined as a default for a pool::
+
+        timeout = Timeout(connect=2.0, read=7.0)
+        http = PoolManager(timeout=timeout)
+        response = http.request('GET', 'http://example.com/')
+
+    Or per-request (which overrides the default for the pool)::
+
+        response = http.request('GET', 'http://example.com/', timeout=Timeout(10))
+
+    Timeouts can be disabled by setting all the parameters to ``None``::
+
+        no_timeout = Timeout(connect=None, read=None)
+        response = http.request('GET', 'http://example.com/, timeout=no_timeout)
+
+
+    :param total:
+        This combines the connect and read timeouts into one; the read timeout
+        will be set to the time leftover from the connect attempt. In the
+        event that both a connect timeout and a total are specified, or a read
+        timeout and a total are specified, the shorter timeout will be applied.
+
+        Defaults to None.
+
+    :type total: integer, float, or None
+
+    :param connect:
+        The maximum amount of time to wait for a connection attempt to a server
+        to succeed. Omitting the parameter will default the connect timeout to
+        the system default, probably `the global default timeout in socket.py
+        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
+        None will set an infinite timeout for connection attempts.
+
+    :type connect: integer, float, or None
+
+    :param read:
+        The maximum amount of time to wait between consecutive
+        read operations for a response from the server. Omitting
+        the parameter will default the read timeout to the system
+        default, probably `the global default timeout in socket.py
+        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
+        None will set an infinite timeout.
+
+    :type read: integer, float, or None
+
+    .. note::
+
+        Many factors can affect the total amount of time for urllib3 to return
+        an HTTP response.
+
+        For example, Python's DNS resolver does not obey the timeout specified
+        on the socket. Other factors that can affect total request time include
+        high CPU load, high swap, the program running at a low priority level,
+        or other behaviors.
+
+        In addition, the read and total timeouts only measure the time between
+        read operations on the socket connecting the client and the server,
+        not the total amount of time for the request to return a complete
+        response. For most requests, the timeout is raised because the server
+        has not sent the first byte in the specified time. This is not always
+        the case; if a server streams one byte every fifteen seconds, a timeout
+        of 20 seconds will not trigger, even though the request will take
+        several minutes to complete.
+
+        If your goal is to cut off any request after a set amount of wall clock
+        time, consider having a second "watcher" thread to cut off a slow
+        request.
+    """
+
+    #: A sentinel object representing the default timeout value
+    DEFAULT_TIMEOUT = _GLOBAL_DEFAULT_TIMEOUT
+
+    def __init__(self, total=None, connect=_Default, read=_Default):
+        self._connect = self._validate_timeout(connect, 'connect')
+        self._read = self._validate_timeout(read, 'read')
+        self.total = self._validate_timeout(total, 'total')
+        self._start_connect = None
+
+    def __str__(self):
+        return '%s(connect=%r, read=%r, total=%r)' % (
+            type(self).__name__, self._connect, self._read, self.total)
+
+    @classmethod
+    def _validate_timeout(cls, value, name):
+        """ Check that a timeout attribute is valid.
+
+        :param value: The timeout value to validate
+        :param name: The name of the timeout attribute to validate. This is
+            used to specify in error messages.
+        :return: The validated and casted version of the given value.
+        :raises ValueError: If the type is not an integer or a float, or if it
+            is a numeric value less than zero.
+        """
+        if value is _Default:
+            return cls.DEFAULT_TIMEOUT
+
+        if value is None or value is cls.DEFAULT_TIMEOUT:
+            return value
+
+        try:
+            float(value)
+        except (TypeError, ValueError):
+            raise ValueError("Timeout value %s was %s, but it must be an "
+                             "int or float." % (name, value))
+
+        try:
+            if value < 0:
+                raise ValueError("Attempted to set %s timeout to %s, but the "
+                                 "timeout cannot be set to a value less "
+                                 "than 0." % (name, value))
+        except TypeError:  # Python 3
+            raise ValueError("Timeout value %s was %s, but it must be an "
+                             "int or float." % (name, value))
+
+        return value
+
+    @classmethod
+    def from_float(cls, timeout):
+        """ Create a new Timeout from a legacy timeout value.
+
+        The timeout value used by httplib.py sets the same timeout on the
+        connect(), and recv() socket requests. This creates a :class:`Timeout`
+        object that sets the individual timeouts to the ``timeout`` value
+        passed to this function.
+
+        :param timeout: The legacy timeout value.
+        :type timeout: integer, float, sentinel default object, or None
+        :return: Timeout object
+        :rtype: :class:`Timeout`
+        """
+        return Timeout(read=timeout, connect=timeout)
+
+    def clone(self):
+        """ Create a copy of the timeout object
+
+        Timeout properties are stored per-pool but each request needs a fresh
+        Timeout object to ensure each one has its own start/stop configured.
+
+        :return: a copy of the timeout object
+        :rtype: :class:`Timeout`
+        """
+        # We can't use copy.deepcopy because that will also create a new object
+        # for _GLOBAL_DEFAULT_TIMEOUT, which socket.py uses as a sentinel to
+        # detect the user default.
+        return Timeout(connect=self._connect, read=self._read,
+                       total=self.total)
+
+    def start_connect(self):
+        """ Start the timeout clock, used during a connect() attempt
+
+        :raises urllib3.exceptions.TimeoutStateError: if you attempt
+            to start a timer that has been started already.
+        """
+        if self._start_connect is not None:
+            raise TimeoutStateError("Timeout timer has already been started.")
+        self._start_connect = current_time()
+        return self._start_connect
+
+    def get_connect_duration(self):
+        """ Gets the time elapsed since the call to :meth:`start_connect`.
+
+        :return: Elapsed time.
+        :rtype: float
+        :raises urllib3.exceptions.TimeoutStateError: if you attempt
+            to get duration for a timer that hasn't been started.
+        """
+        if self._start_connect is None:
+            raise TimeoutStateError("Can't get connect duration for timer "
+                                    "that has not started.")
+        return current_time() - self._start_connect
+
+    @property
+    def connect_timeout(self):
+        """ Get the value to use when setting a connection timeout.
+
+        This will be a positive float or integer, the value None
+        (never timeout), or the default system timeout.
+
+        :return: Connect timeout.
+        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
+        """
+        if self.total is None:
+            return self._connect
+
+        if self._connect is None or self._connect is self.DEFAULT_TIMEOUT:
+            return self.total
+
+        return min(self._connect, self.total)
+
+    @property
+    def read_timeout(self):
+        """ Get the value for the read timeout.
+
+        This assumes some time has elapsed in the connection timeout and
+        computes the read timeout appropriately.
+
+        If self.total is set, the read timeout is dependent on the amount of
+        time taken by the connect timeout. If the connection time has not been
+        established, a :exc:`~urllib3.exceptions.TimeoutStateError` will be
+        raised.
+
+        :return: Value to use for the read timeout.
+        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
+        :raises urllib3.exceptions.TimeoutStateError: If :meth:`start_connect`
+            has not yet been called on this object.
+        """
+        if (self.total is not None and
+                self.total is not self.DEFAULT_TIMEOUT and
+                self._read is not None and
+                self._read is not self.DEFAULT_TIMEOUT):
+            # In case the connect timeout has not yet been established.
+            if self._start_connect is None:
+                return self._read
+            return max(0, min(self.total - self.get_connect_duration(),
+                              self._read))
+        elif self.total is not None and self.total is not self.DEFAULT_TIMEOUT:
+            return max(0, self.total - self.get_connect_duration())
+        else:
+            return self._read
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py
new file mode 100644
index 0000000..e996204
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/packages/urllib3/util/url.py
@@ -0,0 +1,217 @@
+from __future__ import absolute_import
+from collections import namedtuple
+
+from ..exceptions import LocationParseError
+
+
+url_attrs = ['scheme', 'auth', 'host', 'port', 'path', 'query', 'fragment']
+
+
+class Url(namedtuple('Url', url_attrs)):
+    """
+    Datastructure for representing an HTTP URL. Used as a return value for
+    :func:`parse_url`.
+    """
+    slots = ()
+
+    def __new__(cls, scheme=None, auth=None, host=None, port=None, path=None,
+                query=None, fragment=None):
+        if path and not path.startswith('/'):
+            path = '/' + path
+        return super(Url, cls).__new__(cls, scheme, auth, host, port, path,
+                                       query, fragment)
+
+    @property
+    def hostname(self):
+        """For backwards-compatibility with urlparse. We're nice like that."""
+        return self.host
+
+    @property
+    def request_uri(self):
+        """Absolute path including the query string."""
+        uri = self.path or '/'
+
+        if self.query is not None:
+            uri += '?' + self.query
+
+        return uri
+
+    @property
+    def netloc(self):
+        """Network location including host and port"""
+        if self.port:
+            return '%s:%d' % (self.host, self.port)
+        return self.host
+
+    @property
+    def url(self):
+        """
+        Convert self into a url
+
+        This function should more or less round-trip with :func:`.parse_url`. The
+        returned url may not be exactly the same as the url inputted to
+        :func:`.parse_url`, but it should be equivalent by the RFC (e.g., urls
+        with a blank port will have : removed).
+
+        Example: ::
+
+            >>> U = parse_url('http://google.com/mail/')
+            >>> U.url
+            'http://google.com/mail/'
+            >>> Url('http', 'username:password', 'host.com', 80,
+            ... '/path', 'query', 'fragment').url
+            'http://username:password@host.com:80/path?query#fragment'
+        """
+        scheme, auth, host, port, path, query, fragment = self
+        url = ''
+
+        # We use "is not None" we want things to happen with empty strings (or 0 port)
+        if scheme is not None:
+            url += scheme + '://'
+        if auth is not None:
+            url += auth + '@'
+        if host is not None:
+            url += host
+        if port is not None:
+            url += ':' + str(port)
+        if path is not None:
+            url += path
+        if query is not None:
+            url += '?' + query
+        if fragment is not None:
+            url += '#' + fragment
+
+        return url
+
+    def __str__(self):
+        return self.url
+
+
+def split_first(s, delims):
+    """
+    Given a string and an iterable of delimiters, split on the first found
+    delimiter. Return two split parts and the matched delimiter.
+
+    If not found, then the first part is the full input string.
+
+    Example::
+
+        >>> split_first('foo/bar?baz', '?/=')
+        ('foo', 'bar?baz', '/')
+        >>> split_first('foo/bar?baz', '123')
+        ('foo/bar?baz', '', None)
+
+    Scales linearly with number of delims. Not ideal for large number of delims.
+    """
+    min_idx = None
+    min_delim = None
+    for d in delims:
+        idx = s.find(d)
+        if idx < 0:
+            continue
+
+        if min_idx is None or idx < min_idx:
+            min_idx = idx
+            min_delim = d
+
+    if min_idx is None or min_idx < 0:
+        return s, '', None
+
+    return s[:min_idx], s[min_idx + 1:], min_delim
+
+
+def parse_url(url):
+    """
+    Given a url, return a parsed :class:`.Url` namedtuple. Best-effort is
+    performed to parse incomplete urls. Fields not provided will be None.
+
+    Partly backwards-compatible with :mod:`urlparse`.
+
+    Example::
+
+        >>> parse_url('http://google.com/mail/')
+        Url(scheme='http', host='google.com', port=None, path='/mail/', ...)
+        >>> parse_url('google.com:80')
+        Url(scheme=None, host='google.com', port=80, path=None, ...)
+        >>> parse_url('/foo?bar')
+        Url(scheme=None, host=None, port=None, path='/foo', query='bar', ...)
+    """
+
+    # While this code has overlap with stdlib's urlparse, it is much
+    # simplified for our needs and less annoying.
+    # Additionally, this implementations does silly things to be optimal
+    # on CPython.
+
+    if not url:
+        # Empty
+        return Url()
+
+    scheme = None
+    auth = None
+    host = None
+    port = None
+    path = None
+    fragment = None
+    query = None
+
+    # Scheme
+    if '://' in url:
+        scheme, url = url.split('://', 1)
+
+    # Find the earliest Authority Terminator
+    # (http://tools.ietf.org/html/rfc3986#section-3.2)
+    url, path_, delim = split_first(url, ['/', '?', '#'])
+
+    if delim:
+        # Reassemble the path
+        path = delim + path_
+
+    # Auth
+    if '@' in url:
+        # Last '@' denotes end of auth part
+        auth, url = url.rsplit('@', 1)
+
+    # IPv6
+    if url and url[0] == '[':
+        host, url = url.split(']', 1)
+        host += ']'
+
+    # Port
+    if ':' in url:
+        _host, port = url.split(':', 1)
+
+        if not host:
+            host = _host
+
+        if port:
+            # If given, ports must be integers.
+            if not port.isdigit():
+                raise LocationParseError(url)
+            port = int(port)
+        else:
+            # Blank ports are cool, too. (rfc3986#section-3.2.3)
+            port = None
+
+    elif not host and url:
+        host = url
+
+    if not path:
+        return Url(scheme, auth, host, port, path, query, fragment)
+
+    # Fragment
+    if '#' in path:
+        path, fragment = path.split('#', 1)
+
+    # Query
+    if '?' in path:
+        path, query = path.split('?', 1)
+
+    return Url(scheme, auth, host, port, path, query, fragment)
+
+
+def get_host(url):
+    """
+    Deprecated. Use :func:`.parse_url` instead.
+    """
+    p = parse_url(url)
+    return p.scheme or 'http', p.hostname, p.port
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py
new file mode 100644
index 0000000..bcbcc88
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/sessions.py
@@ -0,0 +1,712 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.session
+~~~~~~~~~~~~~~~~
+
+This module provides a Session object to manage and persist settings across
+requests (cookies, auth, proxies).
+"""
+import os
+from collections import Mapping
+from datetime import datetime
+
+from .auth import _basic_auth_str
+from .compat import cookielib, OrderedDict, urljoin, urlparse
+from .cookies import (
+    cookiejar_from_dict, extract_cookies_to_jar, RequestsCookieJar, merge_cookies)
+from .models import Request, PreparedRequest, DEFAULT_REDIRECT_LIMIT
+from .hooks import default_hooks, dispatch_hook
+from .utils import to_key_val_list, default_headers, to_native_string
+from .exceptions import (
+    TooManyRedirects, InvalidSchema, ChunkedEncodingError, ContentDecodingError)
+from .packages.urllib3._collections import RecentlyUsedContainer
+from .structures import CaseInsensitiveDict
+
+from .adapters import HTTPAdapter
+
+from .utils import (
+    requote_uri, get_environ_proxies, get_netrc_auth, should_bypass_proxies,
+    get_auth_from_url
+)
+
+from .status_codes import codes
+
+# formerly defined here, reexposed here for backward compatibility
+from .models import REDIRECT_STATI
+
+REDIRECT_CACHE_SIZE = 1000
+
+
+def merge_setting(request_setting, session_setting, dict_class=OrderedDict):
+    """Determines appropriate setting for a given request, taking into account
+    the explicit setting on that request, and the setting in the session. If a
+    setting is a dictionary, they will be merged together using `dict_class`
+    """
+
+    if session_setting is None:
+        return request_setting
+
+    if request_setting is None:
+        return session_setting
+
+    # Bypass if not a dictionary (e.g. verify)
+    if not (
+            isinstance(session_setting, Mapping) and
+            isinstance(request_setting, Mapping)
+    ):
+        return request_setting
+
+    merged_setting = dict_class(to_key_val_list(session_setting))
+    merged_setting.update(to_key_val_list(request_setting))
+
+    # Remove keys that are set to None. Extract keys first to avoid altering
+    # the dictionary during iteration.
+    none_keys = [k for (k, v) in merged_setting.items() if v is None]
+    for key in none_keys:
+        del merged_setting[key]
+
+    return merged_setting
+
+
+def merge_hooks(request_hooks, session_hooks, dict_class=OrderedDict):
+    """Properly merges both requests and session hooks.
+
+    This is necessary because when request_hooks == {'response': []}, the
+    merge breaks Session hooks entirely.
+    """
+    if session_hooks is None or session_hooks.get('response') == []:
+        return request_hooks
+
+    if request_hooks is None or request_hooks.get('response') == []:
+        return session_hooks
+
+    return merge_setting(request_hooks, session_hooks, dict_class)
+
+
+class SessionRedirectMixin(object):
+    def resolve_redirects(self, resp, req, stream=False, timeout=None,
+                          verify=True, cert=None, proxies=None, **adapter_kwargs):
+        """Receives a Response. Returns a generator of Responses."""
+
+        i = 0
+        hist = [] # keep track of history
+
+        while resp.is_redirect:
+            prepared_request = req.copy()
+
+            if i > 0:
+                # Update history and keep track of redirects.
+                hist.append(resp)
+                new_hist = list(hist)
+                resp.history = new_hist
+
+            try:
+                resp.content  # Consume socket so it can be released
+            except (ChunkedEncodingError, ContentDecodingError, RuntimeError):
+                resp.raw.read(decode_content=False)
+
+            if i >= self.max_redirects:
+                raise TooManyRedirects('Exceeded %s redirects.' % self.max_redirects, response=resp)
+
+            # Release the connection back into the pool.
+            resp.close()
+
+            url = resp.headers['location']
+
+            # Handle redirection without scheme (see: RFC 1808 Section 4)
+            if url.startswith('//'):
+                parsed_rurl = urlparse(resp.url)
+                url = '%s:%s' % (parsed_rurl.scheme, url)
+
+            # The scheme should be lower case...
+            parsed = urlparse(url)
+            url = parsed.geturl()
+
+            # Facilitate relative 'location' headers, as allowed by RFC 7231.
+            # (e.g. '/path/to/resource' instead of 'http://domain.tld/path/to/resource')
+            # Compliant with RFC3986, we percent encode the url.
+            if not parsed.netloc:
+                url = urljoin(resp.url, requote_uri(url))
+            else:
+                url = requote_uri(url)
+
+            prepared_request.url = to_native_string(url)
+            # Cache the url, unless it redirects to itself.
+            if resp.is_permanent_redirect and req.url != prepared_request.url:
+                self.redirect_cache[req.url] = prepared_request.url
+
+            self.rebuild_method(prepared_request, resp)
+
+            # https://github.com/kennethreitz/requests/issues/1084
+            if resp.status_code not in (codes.temporary_redirect, codes.permanent_redirect):
+                # https://github.com/kennethreitz/requests/issues/3490
+                purged_headers = ('Content-Length', 'Content-Type', 'Transfer-Encoding')
+                for header in purged_headers:
+                    prepared_request.headers.pop(header, None)
+                prepared_request.body = None
+
+            headers = prepared_request.headers
+            try:
+                del headers['Cookie']
+            except KeyError:
+                pass
+
+            # Extract any cookies sent on the response to the cookiejar
+            # in the new request. Because we've mutated our copied prepared
+            # request, use the old one that we haven't yet touched.
+            extract_cookies_to_jar(prepared_request._cookies, req, resp.raw)
+            prepared_request._cookies.update(self.cookies)
+            prepared_request.prepare_cookies(prepared_request._cookies)
+
+            # Rebuild auth and proxy information.
+            proxies = self.rebuild_proxies(prepared_request, proxies)
+            self.rebuild_auth(prepared_request, resp)
+
+            # Override the original request.
+            req = prepared_request
+
+            resp = self.send(
+                req,
+                stream=stream,
+                timeout=timeout,
+                verify=verify,
+                cert=cert,
+                proxies=proxies,
+                allow_redirects=False,
+                **adapter_kwargs
+            )
+
+            extract_cookies_to_jar(self.cookies, prepared_request, resp.raw)
+
+            i += 1
+            yield resp
+
+    def rebuild_auth(self, prepared_request, response):
+        """When being redirected we may want to strip authentication from the
+        request to avoid leaking credentials. This method intelligently removes
+        and reapplies authentication where possible to avoid credential loss.
+        """
+        headers = prepared_request.headers
+        url = prepared_request.url
+
+        if 'Authorization' in headers:
+            # If we get redirected to a new host, we should strip out any
+            # authentication headers.
+            original_parsed = urlparse(response.request.url)
+            redirect_parsed = urlparse(url)
+
+            if (original_parsed.hostname != redirect_parsed.hostname):
+                del headers['Authorization']
+
+        # .netrc might have more auth for us on our new host.
+        new_auth = get_netrc_auth(url) if self.trust_env else None
+        if new_auth is not None:
+            prepared_request.prepare_auth(new_auth)
+
+        return
+
+    def rebuild_proxies(self, prepared_request, proxies):
+        """This method re-evaluates the proxy configuration by considering the
+        environment variables. If we are redirected to a URL covered by
+        NO_PROXY, we strip the proxy configuration. Otherwise, we set missing
+        proxy keys for this URL (in case they were stripped by a previous
+        redirect).
+
+        This method also replaces the Proxy-Authorization header where
+        necessary.
+
+        :rtype: dict
+        """
+        headers = prepared_request.headers
+        url = prepared_request.url
+        scheme = urlparse(url).scheme
+        new_proxies = proxies.copy() if proxies is not None else {}
+
+        if self.trust_env and not should_bypass_proxies(url):
+            environ_proxies = get_environ_proxies(url)
+
+            proxy = environ_proxies.get('all', environ_proxies.get(scheme))
+
+            if proxy:
+                new_proxies.setdefault(scheme, proxy)
+
+        if 'Proxy-Authorization' in headers:
+            del headers['Proxy-Authorization']
+
+        try:
+            username, password = get_auth_from_url(new_proxies[scheme])
+        except KeyError:
+            username, password = None, None
+
+        if username and password:
+            headers['Proxy-Authorization'] = _basic_auth_str(username, password)
+
+        return new_proxies
+
+    def rebuild_method(self, prepared_request, response):
+        """When being redirected we may want to change the method of the request
+        based on certain specs or browser behavior.
+        """
+        method = prepared_request.method
+
+        # http://tools.ietf.org/html/rfc7231#section-6.4.4
+        if response.status_code == codes.see_other and method != 'HEAD':
+            method = 'GET'
+
+        # Do what the browsers do, despite standards...
+        # First, turn 302s into GETs.
+        if response.status_code == codes.found and method != 'HEAD':
+            method = 'GET'
+
+        # Second, if a POST is responded to with a 301, turn it into a GET.
+        # This bizarre behaviour is explained in Issue 1704.
+        if response.status_code == codes.moved and method == 'POST':
+            method = 'GET'
+
+        prepared_request.method = method
+
+
+class Session(SessionRedirectMixin):
+    """A Requests session.
+
+    Provides cookie persistence, connection-pooling, and configuration.
+
+    Basic Usage::
+
+      >>> import requests
+      >>> s = requests.Session()
+      >>> s.get('http://httpbin.org/get')
+      <Response [200]>
+
+    Or as a context manager::
+
+      >>> with requests.Session() as s:
+      >>>     s.get('http://httpbin.org/get')
+      <Response [200]>
+    """
+
+    __attrs__ = [
+        'headers', 'cookies', 'auth', 'proxies', 'hooks', 'params', 'verify',
+        'cert', 'prefetch', 'adapters', 'stream', 'trust_env',
+        'max_redirects',
+    ]
+
+    def __init__(self):
+
+        #: A case-insensitive dictionary of headers to be sent on each
+        #: :class:`Request <Request>` sent from this
+        #: :class:`Session <Session>`.
+        self.headers = default_headers()
+
+        #: Default Authentication tuple or object to attach to
+        #: :class:`Request <Request>`.
+        self.auth = None
+
+        #: Dictionary mapping protocol or protocol and host to the URL of the proxy
+        #: (e.g. {'http': 'foo.bar:3128', 'http://host.name': 'foo.bar:4012'}) to
+        #: be used on each :class:`Request <Request>`.
+        self.proxies = {}
+
+        #: Event-handling hooks.
+        self.hooks = default_hooks()
+
+        #: Dictionary of querystring data to attach to each
+        #: :class:`Request <Request>`. The dictionary values may be lists for
+        #: representing multivalued query parameters.
+        self.params = {}
+
+        #: Stream response content default.
+        self.stream = False
+
+        #: SSL Verification default.
+        self.verify = True
+
+        #: SSL certificate default.
+        self.cert = None
+
+        #: Maximum number of redirects allowed. If the request exceeds this
+        #: limit, a :class:`TooManyRedirects` exception is raised.
+        #: This defaults to requests.models.DEFAULT_REDIRECT_LIMIT, which is
+        #: 30.
+        self.max_redirects = DEFAULT_REDIRECT_LIMIT
+
+        #: Trust environment settings for proxy configuration, default
+        #: authentication and similar.
+        self.trust_env = True
+
+        #: A CookieJar containing all currently outstanding cookies set on this
+        #: session. By default it is a
+        #: :class:`RequestsCookieJar <requests.cookies.RequestsCookieJar>`, but
+        #: may be any other ``cookielib.CookieJar`` compatible object.
+        self.cookies = cookiejar_from_dict({})
+
+        # Default connection adapters.
+        self.adapters = OrderedDict()
+        self.mount('https://', HTTPAdapter())
+        self.mount('http://', HTTPAdapter())
+
+        # Only store 1000 redirects to prevent using infinite memory
+        self.redirect_cache = RecentlyUsedContainer(REDIRECT_CACHE_SIZE)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *args):
+        self.close()
+
+    def prepare_request(self, request):
+        """Constructs a :class:`PreparedRequest <PreparedRequest>` for
+        transmission and returns it. The :class:`PreparedRequest` has settings
+        merged from the :class:`Request <Request>` instance and those of the
+        :class:`Session`.
+
+        :param request: :class:`Request` instance to prepare with this
+            session's settings.
+        :rtype: requests.PreparedRequest
+        """
+        cookies = request.cookies or {}
+
+        # Bootstrap CookieJar.
+        if not isinstance(cookies, cookielib.CookieJar):
+            cookies = cookiejar_from_dict(cookies)
+
+        # Merge with session cookies
+        merged_cookies = merge_cookies(
+            merge_cookies(RequestsCookieJar(), self.cookies), cookies)
+
+        # Set environment's basic authentication if not explicitly set.
+        auth = request.auth
+        if self.trust_env and not auth and not self.auth:
+            auth = get_netrc_auth(request.url)
+
+        p = PreparedRequest()
+        p.prepare(
+            method=request.method.upper(),
+            url=request.url,
+            files=request.files,
+            data=request.data,
+            json=request.json,
+            headers=merge_setting(request.headers, self.headers, dict_class=CaseInsensitiveDict),
+            params=merge_setting(request.params, self.params),
+            auth=merge_setting(auth, self.auth),
+            cookies=merged_cookies,
+            hooks=merge_hooks(request.hooks, self.hooks),
+        )
+        return p
+
+    def request(self, method, url,
+        params=None,
+        data=None,
+        headers=None,
+        cookies=None,
+        files=None,
+        auth=None,
+        timeout=None,
+        allow_redirects=True,
+        proxies=None,
+        hooks=None,
+        stream=None,
+        verify=None,
+        cert=None,
+        json=None):
+        """Constructs a :class:`Request <Request>`, prepares it and sends it.
+        Returns :class:`Response <Response>` object.
+
+        :param method: method for the new :class:`Request` object.
+        :param url: URL for the new :class:`Request` object.
+        :param params: (optional) Dictionary or bytes to be sent in the query
+            string for the :class:`Request`.
+        :param data: (optional) Dictionary, bytes, or file-like object to send
+            in the body of the :class:`Request`.
+        :param json: (optional) json to send in the body of the
+            :class:`Request`.
+        :param headers: (optional) Dictionary of HTTP Headers to send with the
+            :class:`Request`.
+        :param cookies: (optional) Dict or CookieJar object to send with the
+            :class:`Request`.
+        :param files: (optional) Dictionary of ``'filename': file-like-objects``
+            for multipart encoding upload.
+        :param auth: (optional) Auth tuple or callable to enable
+            Basic/Digest/Custom HTTP Auth.
+        :param timeout: (optional) How long to wait for the server to send
+            data before giving up, as a float, or a :ref:`(connect timeout,
+            read timeout) <timeouts>` tuple.
+        :type timeout: float or tuple
+        :param allow_redirects: (optional) Set to True by default.
+        :type allow_redirects: bool
+        :param proxies: (optional) Dictionary mapping protocol or protocol and
+            hostname to the URL of the proxy.
+        :param stream: (optional) whether to immediately download the response
+            content. Defaults to ``False``.
+        :param verify: (optional) whether the SSL cert will be verified.
+            A CA_BUNDLE path can also be provided. Defaults to ``True``.
+        :param cert: (optional) if String, path to ssl client cert file (.pem).
+            If Tuple, ('cert', 'key') pair.
+        :rtype: requests.Response
+        """
+        # Create the Request.
+        req = Request(
+            method = method.upper(),
+            url = url,
+            headers = headers,
+            files = files,
+            data = data or {},
+            json = json,
+            params = params or {},
+            auth = auth,
+            cookies = cookies,
+            hooks = hooks,
+        )
+        prep = self.prepare_request(req)
+
+        proxies = proxies or {}
+
+        settings = self.merge_environment_settings(
+            prep.url, proxies, stream, verify, cert
+        )
+
+        # Send the request.
+        send_kwargs = {
+            'timeout': timeout,
+            'allow_redirects': allow_redirects,
+        }
+        send_kwargs.update(settings)
+        resp = self.send(prep, **send_kwargs)
+
+        return resp
+
+    def get(self, url, **kwargs):
+        """Sends a GET request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', True)
+        return self.request('GET', url, **kwargs)
+
+    def options(self, url, **kwargs):
+        """Sends a OPTIONS request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', True)
+        return self.request('OPTIONS', url, **kwargs)
+
+    def head(self, url, **kwargs):
+        """Sends a HEAD request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        kwargs.setdefault('allow_redirects', False)
+        return self.request('HEAD', url, **kwargs)
+
+    def post(self, url, data=None, json=None, **kwargs):
+        """Sends a POST request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param json: (optional) json to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('POST', url, data=data, json=json, **kwargs)
+
+    def put(self, url, data=None, **kwargs):
+        """Sends a PUT request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('PUT', url, data=data, **kwargs)
+
+    def patch(self, url, data=None, **kwargs):
+        """Sends a PATCH request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param data: (optional) Dictionary, bytes, or file-like object to send in the body of the :class:`Request`.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('PATCH', url,  data=data, **kwargs)
+
+    def delete(self, url, **kwargs):
+        """Sends a DELETE request. Returns :class:`Response` object.
+
+        :param url: URL for the new :class:`Request` object.
+        :param \*\*kwargs: Optional arguments that ``request`` takes.
+        :rtype: requests.Response
+        """
+
+        return self.request('DELETE', url, **kwargs)
+
+    def send(self, request, **kwargs):
+        """
+        Send a given PreparedRequest.
+
+        :rtype: requests.Response
+        """
+        # Set defaults that the hooks can utilize to ensure they always have
+        # the correct parameters to reproduce the previous request.
+        kwargs.setdefault('stream', self.stream)
+        kwargs.setdefault('verify', self.verify)
+        kwargs.setdefault('cert', self.cert)
+        kwargs.setdefault('proxies', self.proxies)
+
+        # It's possible that users might accidentally send a Request object.
+        # Guard against that specific failure case.
+        if isinstance(request, Request):
+            raise ValueError('You can only send PreparedRequests.')
+
+        # Set up variables needed for resolve_redirects and dispatching of hooks
+        allow_redirects = kwargs.pop('allow_redirects', True)
+        stream = kwargs.get('stream')
+        hooks = request.hooks
+
+        # Resolve URL in redirect cache, if available.
+        if allow_redirects:
+            checked_urls = set()
+            while request.url in self.redirect_cache:
+                checked_urls.add(request.url)
+                new_url = self.redirect_cache.get(request.url)
+                if new_url in checked_urls:
+                    break
+                request.url = new_url
+
+        # Get the appropriate adapter to use
+        adapter = self.get_adapter(url=request.url)
+
+        # Start time (approximately) of the request
+        start = datetime.utcnow()
+
+        # Send the request
+        r = adapter.send(request, **kwargs)
+
+        # Total elapsed time of the request (approximately)
+        r.elapsed = datetime.utcnow() - start
+
+        # Response manipulation hooks
+        r = dispatch_hook('response', hooks, r, **kwargs)
+
+        # Persist cookies
+        if r.history:
+
+            # If the hooks create history then we want those cookies too
+            for resp in r.history:
+                extract_cookies_to_jar(self.cookies, resp.request, resp.raw)
+
+        extract_cookies_to_jar(self.cookies, request, r.raw)
+
+        # Redirect resolving generator.
+        gen = self.resolve_redirects(r, request, **kwargs)
+
+        # Resolve redirects if allowed.
+        history = [resp for resp in gen] if allow_redirects else []
+
+        # Shuffle things around if there's history.
+        if history:
+            # Insert the first (original) request at the start
+            history.insert(0, r)
+            # Get the last request made
+            r = history.pop()
+            r.history = history
+
+        if not stream:
+            r.content
+
+        return r
+
+    def merge_environment_settings(self, url, proxies, stream, verify, cert):
+        """
+        Check the environment and merge it with some settings.
+
+        :rtype: dict
+        """
+        # Gather clues from the surrounding environment.
+        if self.trust_env:
+            # Set environment's proxies.
+            env_proxies = get_environ_proxies(url) or {}
+            for (k, v) in env_proxies.items():
+                proxies.setdefault(k, v)
+
+            # Look for requests environment configuration and be compatible
+            # with cURL.
+            if verify is True or verify is None:
+                verify = (os.environ.get('REQUESTS_CA_BUNDLE') or
+                          os.environ.get('CURL_CA_BUNDLE'))
+
+        # Merge all the kwargs.
+        proxies = merge_setting(proxies, self.proxies)
+        stream = merge_setting(stream, self.stream)
+        verify = merge_setting(verify, self.verify)
+        cert = merge_setting(cert, self.cert)
+
+        return {'verify': verify, 'proxies': proxies, 'stream': stream,
+                'cert': cert}
+
+    def get_adapter(self, url):
+        """
+        Returns the appropriate connection adapter for the given URL.
+
+        :rtype: requests.adapters.BaseAdapter
+        """
+        for (prefix, adapter) in self.adapters.items():
+
+            if url.lower().startswith(prefix):
+                return adapter
+
+        # Nothing matches :-/
+        raise InvalidSchema("No connection adapters were found for '%s'" % url)
+
+    def close(self):
+        """Closes all adapters and as such the session"""
+        for v in self.adapters.values():
+            v.close()
+
+    def mount(self, prefix, adapter):
+        """Registers a connection adapter to a prefix.
+
+        Adapters are sorted in descending order by key length.
+        """
+        self.adapters[prefix] = adapter
+        keys_to_move = [k for k in self.adapters if len(k) < len(prefix)]
+
+        for key in keys_to_move:
+            self.adapters[key] = self.adapters.pop(key)
+
+    def __getstate__(self):
+        state = dict((attr, getattr(self, attr, None)) for attr in self.__attrs__)
+        state['redirect_cache'] = dict(self.redirect_cache)
+        return state
+
+    def __setstate__(self, state):
+        redirect_cache = state.pop('redirect_cache', {})
+        for attr, value in state.items():
+            setattr(self, attr, value)
+
+        self.redirect_cache = RecentlyUsedContainer(REDIRECT_CACHE_SIZE)
+        for redirect, to in redirect_cache.items():
+            self.redirect_cache[redirect] = to
+
+
+def session():
+    """
+    Returns a :class:`Session` for context-management.
+
+    :rtype: Session
+    """
+
+    return Session()
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py
new file mode 100644
index 0000000..db2986b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/status_codes.py
@@ -0,0 +1,91 @@
+# -*- coding: utf-8 -*-
+
+from .structures import LookupDict
+
+_codes = {
+
+    # Informational.
+    100: ('continue',),
+    101: ('switching_protocols',),
+    102: ('processing',),
+    103: ('checkpoint',),
+    122: ('uri_too_long', 'request_uri_too_long'),
+    200: ('ok', 'okay', 'all_ok', 'all_okay', 'all_good', '\\o/', '✓'),
+    201: ('created',),
+    202: ('accepted',),
+    203: ('non_authoritative_info', 'non_authoritative_information'),
+    204: ('no_content',),
+    205: ('reset_content', 'reset'),
+    206: ('partial_content', 'partial'),
+    207: ('multi_status', 'multiple_status', 'multi_stati', 'multiple_stati'),
+    208: ('already_reported',),
+    226: ('im_used',),
+
+    # Redirection.
+    300: ('multiple_choices',),
+    301: ('moved_permanently', 'moved', '\\o-'),
+    302: ('found',),
+    303: ('see_other', 'other'),
+    304: ('not_modified',),
+    305: ('use_proxy',),
+    306: ('switch_proxy',),
+    307: ('temporary_redirect', 'temporary_moved', 'temporary'),
+    308: ('permanent_redirect',
+          'resume_incomplete', 'resume',),  # These 2 to be removed in 3.0
+
+    # Client Error.
+    400: ('bad_request', 'bad'),
+    401: ('unauthorized',),
+    402: ('payment_required', 'payment'),
+    403: ('forbidden',),
+    404: ('not_found', '-o-'),
+    405: ('method_not_allowed', 'not_allowed'),
+    406: ('not_acceptable',),
+    407: ('proxy_authentication_required', 'proxy_auth', 'proxy_authentication'),
+    408: ('request_timeout', 'timeout'),
+    409: ('conflict',),
+    410: ('gone',),
+    411: ('length_required',),
+    412: ('precondition_failed', 'precondition'),
+    413: ('request_entity_too_large',),
+    414: ('request_uri_too_large',),
+    415: ('unsupported_media_type', 'unsupported_media', 'media_type'),
+    416: ('requested_range_not_satisfiable', 'requested_range', 'range_not_satisfiable'),
+    417: ('expectation_failed',),
+    418: ('im_a_teapot', 'teapot', 'i_am_a_teapot'),
+    421: ('misdirected_request',),
+    422: ('unprocessable_entity', 'unprocessable'),
+    423: ('locked',),
+    424: ('failed_dependency', 'dependency'),
+    425: ('unordered_collection', 'unordered'),
+    426: ('upgrade_required', 'upgrade'),
+    428: ('precondition_required', 'precondition'),
+    429: ('too_many_requests', 'too_many'),
+    431: ('header_fields_too_large', 'fields_too_large'),
+    444: ('no_response', 'none'),
+    449: ('retry_with', 'retry'),
+    450: ('blocked_by_windows_parental_controls', 'parental_controls'),
+    451: ('unavailable_for_legal_reasons', 'legal_reasons'),
+    499: ('client_closed_request',),
+
+    # Server Error.
+    500: ('internal_server_error', 'server_error', '/o\\', '✗'),
+    501: ('not_implemented',),
+    502: ('bad_gateway',),
+    503: ('service_unavailable', 'unavailable'),
+    504: ('gateway_timeout',),
+    505: ('http_version_not_supported', 'http_version'),
+    506: ('variant_also_negotiates',),
+    507: ('insufficient_storage',),
+    509: ('bandwidth_limit_exceeded', 'bandwidth'),
+    510: ('not_extended',),
+    511: ('network_authentication_required', 'network_auth', 'network_authentication'),
+}
+
+codes = LookupDict(name='status_codes')
+
+for code, titles in _codes.items():
+    for title in titles:
+        setattr(codes, title, code)
+        if not title.startswith('\\'):
+            setattr(codes, title.upper(), code)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/structures.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/structures.py
new file mode 100644
index 0000000..05d2b3f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/structures.py
@@ -0,0 +1,105 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.structures
+~~~~~~~~~~~~~~~~~~~
+
+Data structures that power Requests.
+"""
+
+import collections
+
+from .compat import OrderedDict
+
+
+class CaseInsensitiveDict(collections.MutableMapping):
+    """A case-insensitive ``dict``-like object.
+
+    Implements all methods and operations of
+    ``collections.MutableMapping`` as well as dict's ``copy``. Also
+    provides ``lower_items``.
+
+    All keys are expected to be strings. The structure remembers the
+    case of the last key to be set, and ``iter(instance)``,
+    ``keys()``, ``items()``, ``iterkeys()``, and ``iteritems()``
+    will contain case-sensitive keys. However, querying and contains
+    testing is case insensitive::
+
+        cid = CaseInsensitiveDict()
+        cid['Accept'] = 'application/json'
+        cid['aCCEPT'] == 'application/json'  # True
+        list(cid) == ['Accept']  # True
+
+    For example, ``headers['content-encoding']`` will return the
+    value of a ``'Content-Encoding'`` response header, regardless
+    of how the header name was originally stored.
+
+    If the constructor, ``.update``, or equality comparison
+    operations are given keys that have equal ``.lower()``s, the
+    behavior is undefined.
+    """
+
+    def __init__(self, data=None, **kwargs):
+        self._store = OrderedDict()
+        if data is None:
+            data = {}
+        self.update(data, **kwargs)
+
+    def __setitem__(self, key, value):
+        # Use the lowercased key for lookups, but store the actual
+        # key alongside the value.
+        self._store[key.lower()] = (key, value)
+
+    def __getitem__(self, key):
+        return self._store[key.lower()][1]
+
+    def __delitem__(self, key):
+        del self._store[key.lower()]
+
+    def __iter__(self):
+        return (casedkey for casedkey, mappedvalue in self._store.values())
+
+    def __len__(self):
+        return len(self._store)
+
+    def lower_items(self):
+        """Like iteritems(), but with all lowercase keys."""
+        return (
+            (lowerkey, keyval[1])
+            for (lowerkey, keyval)
+            in self._store.items()
+        )
+
+    def __eq__(self, other):
+        if isinstance(other, collections.Mapping):
+            other = CaseInsensitiveDict(other)
+        else:
+            return NotImplemented
+        # Compare insensitively
+        return dict(self.lower_items()) == dict(other.lower_items())
+
+    # Copy is required
+    def copy(self):
+        return CaseInsensitiveDict(self._store.values())
+
+    def __repr__(self):
+        return str(dict(self.items()))
+
+
+class LookupDict(dict):
+    """Dictionary lookup object."""
+
+    def __init__(self, name=None):
+        self.name = name
+        super(LookupDict, self).__init__()
+
+    def __repr__(self):
+        return '<lookup \'%s\'>' % (self.name)
+
+    def __getitem__(self, key):
+        # We allow fall-through here, so values default to None
+
+        return self.__dict__.get(key, None)
+
+    def get(self, key, default=None):
+        return self.__dict__.get(key, default)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/requests/utils.py b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/utils.py
new file mode 100644
index 0000000..30a03ca
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/requests/utils.py
@@ -0,0 +1,817 @@
+# -*- coding: utf-8 -*-
+
+"""
+requests.utils
+~~~~~~~~~~~~~~
+
+This module provides utility functions that are used within Requests
+that are also useful for external consumption.
+"""
+
+import cgi
+import codecs
+import collections
+import io
+import os
+import re
+import socket
+import struct
+import warnings
+
+from . import __version__
+from . import certs
+from .compat import parse_http_list as _parse_list_header
+from .compat import (quote, urlparse, bytes, str, OrderedDict, unquote, is_py2,
+                     builtin_str, getproxies, proxy_bypass, urlunparse,
+                     basestring)
+from .cookies import RequestsCookieJar, cookiejar_from_dict
+from .structures import CaseInsensitiveDict
+from .exceptions import InvalidURL, InvalidHeader, FileModeWarning
+
+_hush_pyflakes = (RequestsCookieJar,)
+
+NETRC_FILES = ('.netrc', '_netrc')
+
+DEFAULT_CA_BUNDLE_PATH = certs.where()
+
+
+def dict_to_sequence(d):
+    """Returns an internal sequence dictionary update."""
+
+    if hasattr(d, 'items'):
+        d = d.items()
+
+    return d
+
+
+def super_len(o):
+    total_length = 0
+    current_position = 0
+
+    if hasattr(o, '__len__'):
+        total_length = len(o)
+
+    elif hasattr(o, 'len'):
+        total_length = o.len
+
+    elif hasattr(o, 'getvalue'):
+        # e.g. BytesIO, cStringIO.StringIO
+        total_length = len(o.getvalue())
+
+    elif hasattr(o, 'fileno'):
+        try:
+            fileno = o.fileno()
+        except io.UnsupportedOperation:
+            pass
+        else:
+            total_length = os.fstat(fileno).st_size
+
+            # Having used fstat to determine the file length, we need to
+            # confirm that this file was opened up in binary mode.
+            if 'b' not in o.mode:
+                warnings.warn((
+                    "Requests has determined the content-length for this "
+                    "request using the binary size of the file: however, the "
+                    "file has been opened in text mode (i.e. without the 'b' "
+                    "flag in the mode). This may lead to an incorrect "
+                    "content-length. In Requests 3.0, support will be removed "
+                    "for files in text mode."),
+                    FileModeWarning
+                )
+
+    if hasattr(o, 'tell'):
+        try:
+            current_position = o.tell()
+        except (OSError, IOError):
+            # This can happen in some weird situations, such as when the file
+            # is actually a special file descriptor like stdin. In this
+            # instance, we don't know what the length is, so set it to zero and
+            # let requests chunk it instead.
+            current_position = total_length
+
+    return max(0, total_length - current_position)
+
+
+def get_netrc_auth(url, raise_errors=False):
+    """Returns the Requests tuple auth for a given url from netrc."""
+
+    try:
+        from netrc import netrc, NetrcParseError
+
+        netrc_path = None
+
+        for f in NETRC_FILES:
+            try:
+                loc = os.path.expanduser('~/{0}'.format(f))
+            except KeyError:
+                # os.path.expanduser can fail when $HOME is undefined and
+                # getpwuid fails. See http://bugs.python.org/issue20164 &
+                # https://github.com/kennethreitz/requests/issues/1846
+                return
+
+            if os.path.exists(loc):
+                netrc_path = loc
+                break
+
+        # Abort early if there isn't one.
+        if netrc_path is None:
+            return
+
+        ri = urlparse(url)
+
+        # Strip port numbers from netloc. This weird `if...encode`` dance is
+        # used for Python 3.2, which doesn't support unicode literals.
+        splitstr = b':'
+        if isinstance(url, str):
+            splitstr = splitstr.decode('ascii')
+        host = ri.netloc.split(splitstr)[0]
+
+        try:
+            _netrc = netrc(netrc_path).authenticators(host)
+            if _netrc:
+                # Return with login / password
+                login_i = (0 if _netrc[0] else 1)
+                return (_netrc[login_i], _netrc[2])
+        except (NetrcParseError, IOError):
+            # If there was a parsing error or a permissions issue reading the file,
+            # we'll just skip netrc auth unless explicitly asked to raise errors.
+            if raise_errors:
+                raise
+
+    # AppEngine hackiness.
+    except (ImportError, AttributeError):
+        pass
+
+
+def guess_filename(obj):
+    """Tries to guess the filename of the given object."""
+    name = getattr(obj, 'name', None)
+    if (name and isinstance(name, basestring) and name[0] != '<' and
+            name[-1] != '>'):
+        return os.path.basename(name)
+
+
+def from_key_val_list(value):
+    """Take an object and test to see if it can be represented as a
+    dictionary. Unless it can not be represented as such, return an
+    OrderedDict, e.g.,
+
+    ::
+
+        >>> from_key_val_list([('key', 'val')])
+        OrderedDict([('key', 'val')])
+        >>> from_key_val_list('string')
+        ValueError: need more than 1 value to unpack
+        >>> from_key_val_list({'key': 'val'})
+        OrderedDict([('key', 'val')])
+
+    :rtype: OrderedDict
+    """
+    if value is None:
+        return None
+
+    if isinstance(value, (str, bytes, bool, int)):
+        raise ValueError('cannot encode objects that are not 2-tuples')
+
+    return OrderedDict(value)
+
+
+def to_key_val_list(value):
+    """Take an object and test to see if it can be represented as a
+    dictionary. If it can be, return a list of tuples, e.g.,
+
+    ::
+
+        >>> to_key_val_list([('key', 'val')])
+        [('key', 'val')]
+        >>> to_key_val_list({'key': 'val'})
+        [('key', 'val')]
+        >>> to_key_val_list('string')
+        ValueError: cannot encode objects that are not 2-tuples.
+
+    :rtype: list
+    """
+    if value is None:
+        return None
+
+    if isinstance(value, (str, bytes, bool, int)):
+        raise ValueError('cannot encode objects that are not 2-tuples')
+
+    if isinstance(value, collections.Mapping):
+        value = value.items()
+
+    return list(value)
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def parse_list_header(value):
+    """Parse lists as described by RFC 2068 Section 2.
+
+    In particular, parse comma-separated lists where the elements of
+    the list may include quoted-strings.  A quoted-string could
+    contain a comma.  A non-quoted string could have quotes in the
+    middle.  Quotes are removed automatically after parsing.
+
+    It basically works like :func:`parse_set_header` just that items
+    may appear multiple times and case sensitivity is preserved.
+
+    The return value is a standard :class:`list`:
+
+    >>> parse_list_header('token, "quoted value"')
+    ['token', 'quoted value']
+
+    To create a header from the :class:`list` again, use the
+    :func:`dump_header` function.
+
+    :param value: a string with a list header.
+    :return: :class:`list`
+    :rtype: list
+    """
+    result = []
+    for item in _parse_list_header(value):
+        if item[:1] == item[-1:] == '"':
+            item = unquote_header_value(item[1:-1])
+        result.append(item)
+    return result
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def parse_dict_header(value):
+    """Parse lists of key, value pairs as described by RFC 2068 Section 2 and
+    convert them into a python dict:
+
+    >>> d = parse_dict_header('foo="is a fish", bar="as well"')
+    >>> type(d) is dict
+    True
+    >>> sorted(d.items())
+    [('bar', 'as well'), ('foo', 'is a fish')]
+
+    If there is no value for a key it will be `None`:
+
+    >>> parse_dict_header('key_without_value')
+    {'key_without_value': None}
+
+    To create a header from the :class:`dict` again, use the
+    :func:`dump_header` function.
+
+    :param value: a string with a dict header.
+    :return: :class:`dict`
+    :rtype: dict
+    """
+    result = {}
+    for item in _parse_list_header(value):
+        if '=' not in item:
+            result[item] = None
+            continue
+        name, value = item.split('=', 1)
+        if value[:1] == value[-1:] == '"':
+            value = unquote_header_value(value[1:-1])
+        result[name] = value
+    return result
+
+
+# From mitsuhiko/werkzeug (used with permission).
+def unquote_header_value(value, is_filename=False):
+    r"""Unquotes a header value.  (Reversal of :func:`quote_header_value`).
+    This does not use the real unquoting but what browsers are actually
+    using for quoting.
+
+    :param value: the header value to unquote.
+    :rtype: str
+    """
+    if value and value[0] == value[-1] == '"':
+        # this is not the real unquoting, but fixing this so that the
+        # RFC is met will result in bugs with internet explorer and
+        # probably some other browsers as well.  IE for example is
+        # uploading files with "C:\foo\bar.txt" as filename
+        value = value[1:-1]
+
+        # if this is a filename and the starting characters look like
+        # a UNC path, then just return the value without quotes.  Using the
+        # replace sequence below on a UNC path has the effect of turning
+        # the leading double slash into a single slash and then
+        # _fix_ie_filename() doesn't work correctly.  See #458.
+        if not is_filename or value[:2] != '\\\\':
+            return value.replace('\\\\', '\\').replace('\\"', '"')
+    return value
+
+
+def dict_from_cookiejar(cj):
+    """Returns a key/value dictionary from a CookieJar.
+
+    :param cj: CookieJar object to extract cookies from.
+    :rtype: dict
+    """
+
+    cookie_dict = {}
+
+    for cookie in cj:
+        cookie_dict[cookie.name] = cookie.value
+
+    return cookie_dict
+
+
+def add_dict_to_cookiejar(cj, cookie_dict):
+    """Returns a CookieJar from a key/value dictionary.
+
+    :param cj: CookieJar to insert cookies into.
+    :param cookie_dict: Dict of key/values to insert into CookieJar.
+    :rtype: CookieJar
+    """
+
+    cj2 = cookiejar_from_dict(cookie_dict)
+    cj.update(cj2)
+    return cj
+
+
+def get_encodings_from_content(content):
+    """Returns encodings from given content string.
+
+    :param content: bytestring to extract encodings from.
+    """
+    warnings.warn((
+        'In requests 3.0, get_encodings_from_content will be removed. For '
+        'more information, please see the discussion on issue #2266. (This'
+        ' warning should only appear once.)'),
+        DeprecationWarning)
+
+    charset_re = re.compile(r'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I)
+    pragma_re = re.compile(r'<meta.*?content=["\']*;?charset=(.+?)["\'>]', flags=re.I)
+    xml_re = re.compile(r'^<\?xml.*?encoding=["\']*(.+?)["\'>]')
+
+    return (charset_re.findall(content) +
+            pragma_re.findall(content) +
+            xml_re.findall(content))
+
+
+def get_encoding_from_headers(headers):
+    """Returns encodings from given HTTP Header Dict.
+
+    :param headers: dictionary to extract encoding from.
+    :rtype: str
+    """
+
+    content_type = headers.get('content-type')
+
+    if not content_type:
+        return None
+
+    content_type, params = cgi.parse_header(content_type)
+
+    if 'charset' in params:
+        return params['charset'].strip("'\"")
+
+    if 'text' in content_type:
+        return 'ISO-8859-1'
+
+
+def stream_decode_response_unicode(iterator, r):
+    """Stream decodes a iterator."""
+
+    if r.encoding is None:
+        for item in iterator:
+            yield item
+        return
+
+    decoder = codecs.getincrementaldecoder(r.encoding)(errors='replace')
+    for chunk in iterator:
+        rv = decoder.decode(chunk)
+        if rv:
+            yield rv
+    rv = decoder.decode(b'', final=True)
+    if rv:
+        yield rv
+
+
+def iter_slices(string, slice_length):
+    """Iterate over slices of a string."""
+    pos = 0
+    if slice_length is None or slice_length <= 0:
+        slice_length = len(string)
+    while pos < len(string):
+        yield string[pos:pos + slice_length]
+        pos += slice_length
+
+
+def get_unicode_from_response(r):
+    """Returns the requested content back in unicode.
+
+    :param r: Response object to get unicode content from.
+
+    Tried:
+
+    1. charset from content-type
+    2. fall back and replace all unicode characters
+
+    :rtype: str
+    """
+    warnings.warn((
+        'In requests 3.0, get_unicode_from_response will be removed. For '
+        'more information, please see the discussion on issue #2266. (This'
+        ' warning should only appear once.)'),
+        DeprecationWarning)
+
+    tried_encodings = []
+
+    # Try charset from content-type
+    encoding = get_encoding_from_headers(r.headers)
+
+    if encoding:
+        try:
+            return str(r.content, encoding)
+        except UnicodeError:
+            tried_encodings.append(encoding)
+
+    # Fall back:
+    try:
+        return str(r.content, encoding, errors='replace')
+    except TypeError:
+        return r.content
+
+
+# The unreserved URI characters (RFC 3986)
+UNRESERVED_SET = frozenset(
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+    + "0123456789-._~")
+
+
+def unquote_unreserved(uri):
+    """Un-escape any percent-escape sequences in a URI that are unreserved
+    characters. This leaves all reserved, illegal and non-ASCII bytes encoded.
+
+    :rtype: str
+    """
+    parts = uri.split('%')
+    for i in range(1, len(parts)):
+        h = parts[i][0:2]
+        if len(h) == 2 and h.isalnum():
+            try:
+                c = chr(int(h, 16))
+            except ValueError:
+                raise InvalidURL("Invalid percent-escape sequence: '%s'" % h)
+
+            if c in UNRESERVED_SET:
+                parts[i] = c + parts[i][2:]
+            else:
+                parts[i] = '%' + parts[i]
+        else:
+            parts[i] = '%' + parts[i]
+    return ''.join(parts)
+
+
+def requote_uri(uri):
+    """Re-quote the given URI.
+
+    This function passes the given URI through an unquote/quote cycle to
+    ensure that it is fully and consistently quoted.
+
+    :rtype: str
+    """
+    safe_with_percent = "!#$%&'()*+,/:;=?@[]~"
+    safe_without_percent = "!#$&'()*+,/:;=?@[]~"
+    try:
+        # Unquote only the unreserved characters
+        # Then quote only illegal characters (do not quote reserved,
+        # unreserved, or '%')
+        return quote(unquote_unreserved(uri), safe=safe_with_percent)
+    except InvalidURL:
+        # We couldn't unquote the given URI, so let's try quoting it, but
+        # there may be unquoted '%'s in the URI. We need to make sure they're
+        # properly quoted so they do not cause issues elsewhere.
+        return quote(uri, safe=safe_without_percent)
+
+
+def address_in_network(ip, net):
+    """This function allows you to check if on IP belongs to a network subnet
+
+    Example: returns True if ip = 192.168.1.1 and net = 192.168.1.0/24
+             returns False if ip = 192.168.1.1 and net = 192.168.100.0/24
+
+    :rtype: bool
+    """
+    ipaddr = struct.unpack('=L', socket.inet_aton(ip))[0]
+    netaddr, bits = net.split('/')
+    netmask = struct.unpack('=L', socket.inet_aton(dotted_netmask(int(bits))))[0]
+    network = struct.unpack('=L', socket.inet_aton(netaddr))[0] & netmask
+    return (ipaddr & netmask) == (network & netmask)
+
+
+def dotted_netmask(mask):
+    """Converts mask from /xx format to xxx.xxx.xxx.xxx
+
+    Example: if mask is 24 function returns 255.255.255.0
+
+    :rtype: str
+    """
+    bits = 0xffffffff ^ (1 << 32 - mask) - 1
+    return socket.inet_ntoa(struct.pack('>I', bits))
+
+
+def is_ipv4_address(string_ip):
+    """
+    :rtype: bool
+    """
+    try:
+        socket.inet_aton(string_ip)
+    except socket.error:
+        return False
+    return True
+
+
+def is_valid_cidr(string_network):
+    """
+    Very simple check of the cidr format in no_proxy variable.
+
+    :rtype: bool
+    """
+    if string_network.count('/') == 1:
+        try:
+            mask = int(string_network.split('/')[1])
+        except ValueError:
+            return False
+
+        if mask < 1 or mask > 32:
+            return False
+
+        try:
+            socket.inet_aton(string_network.split('/')[0])
+        except socket.error:
+            return False
+    else:
+        return False
+    return True
+
+
+def should_bypass_proxies(url):
+    """
+    Returns whether we should bypass proxies or not.
+
+    :rtype: bool
+    """
+    get_proxy = lambda k: os.environ.get(k) or os.environ.get(k.upper())
+
+    # First check whether no_proxy is defined. If it is, check that the URL
+    # we're getting isn't in the no_proxy list.
+    no_proxy = get_proxy('no_proxy')
+    netloc = urlparse(url).netloc
+
+    if no_proxy:
+        # We need to check whether we match here. We need to see if we match
+        # the end of the netloc, both with and without the port.
+        no_proxy = (
+            host for host in no_proxy.replace(' ', '').split(',') if host
+        )
+
+        ip = netloc.split(':')[0]
+        if is_ipv4_address(ip):
+            for proxy_ip in no_proxy:
+                if is_valid_cidr(proxy_ip):
+                    if address_in_network(ip, proxy_ip):
+                        return True
+                elif ip == proxy_ip:
+                    # If no_proxy ip was defined in plain IP notation instead of cidr notation &
+                    # matches the IP of the index
+                    return True
+        else:
+            for host in no_proxy:
+                if netloc.endswith(host) or netloc.split(':')[0].endswith(host):
+                    # The URL does match something in no_proxy, so we don't want
+                    # to apply the proxies on this URL.
+                    return True
+
+    # If the system proxy settings indicate that this URL should be bypassed,
+    # don't proxy.
+    # The proxy_bypass function is incredibly buggy on macOS in early versions
+    # of Python 2.6, so allow this call to fail. Only catch the specific
+    # exceptions we've seen, though: this call failing in other ways can reveal
+    # legitimate problems.
+    try:
+        bypass = proxy_bypass(netloc)
+    except (TypeError, socket.gaierror):
+        bypass = False
+
+    if bypass:
+        return True
+
+    return False
+
+
+def get_environ_proxies(url):
+    """
+    Return a dict of environment proxies.
+
+    :rtype: dict
+    """
+    if should_bypass_proxies(url):
+        return {}
+    else:
+        return getproxies()
+
+
+def select_proxy(url, proxies):
+    """Select a proxy for the url, if applicable.
+
+    :param url: The url being for the request
+    :param proxies: A dictionary of schemes or schemes and hosts to proxy URLs
+    """
+    proxies = proxies or {}
+    urlparts = urlparse(url)
+    if urlparts.hostname is None:
+        return proxies.get('all', proxies.get(urlparts.scheme))
+
+    proxy_keys = [
+        'all://' + urlparts.hostname,
+        'all',
+        urlparts.scheme + '://' + urlparts.hostname,
+        urlparts.scheme,
+    ]
+    proxy = None
+    for proxy_key in proxy_keys:
+        if proxy_key in proxies:
+            proxy = proxies[proxy_key]
+            break
+
+    return proxy
+
+
+def default_user_agent(name="python-requests"):
+    """
+    Return a string representing the default user agent.
+
+    :rtype: str
+    """
+    return '%s/%s' % (name, __version__)
+
+
+def default_headers():
+    """
+    :rtype: requests.structures.CaseInsensitiveDict
+    """
+    return CaseInsensitiveDict({
+        'User-Agent': default_user_agent(),
+        'Accept-Encoding': ', '.join(('gzip', 'deflate')),
+        'Accept': '*/*',
+        'Connection': 'keep-alive',
+    })
+
+
+def parse_header_links(value):
+    """Return a dict of parsed link headers proxies.
+
+    i.e. Link: <http:/.../front.jpeg>; rel=front; type="image/jpeg",<http://.../back.jpeg>; rel=back;type="image/jpeg"
+
+    :rtype: list
+    """
+
+    links = []
+
+    replace_chars = ' \'"'
+
+    for val in re.split(', *<', value):
+        try:
+            url, params = val.split(';', 1)
+        except ValueError:
+            url, params = val, ''
+
+        link = {'url': url.strip('<> \'"')}
+
+        for param in params.split(';'):
+            try:
+                key, value = param.split('=')
+            except ValueError:
+                break
+
+            link[key.strip(replace_chars)] = value.strip(replace_chars)
+
+        links.append(link)
+
+    return links
+
+
+# Null bytes; no need to recreate these on each call to guess_json_utf
+_null = '\x00'.encode('ascii')  # encoding to ASCII for Python 3
+_null2 = _null * 2
+_null3 = _null * 3
+
+
+def guess_json_utf(data):
+    """
+    :rtype: str
+    """
+    # JSON always starts with two ASCII characters, so detection is as
+    # easy as counting the nulls and from their location and count
+    # determine the encoding. Also detect a BOM, if present.
+    sample = data[:4]
+    if sample in (codecs.BOM_UTF32_LE, codecs.BOM32_BE):
+        return 'utf-32'     # BOM included
+    if sample[:3] == codecs.BOM_UTF8:
+        return 'utf-8-sig'  # BOM included, MS style (discouraged)
+    if sample[:2] in (codecs.BOM_UTF16_LE, codecs.BOM_UTF16_BE):
+        return 'utf-16'     # BOM included
+    nullcount = sample.count(_null)
+    if nullcount == 0:
+        return 'utf-8'
+    if nullcount == 2:
+        if sample[::2] == _null2:   # 1st and 3rd are null
+            return 'utf-16-be'
+        if sample[1::2] == _null2:  # 2nd and 4th are null
+            return 'utf-16-le'
+        # Did not detect 2 valid UTF-16 ascii-range characters
+    if nullcount == 3:
+        if sample[:3] == _null3:
+            return 'utf-32-be'
+        if sample[1:] == _null3:
+            return 'utf-32-le'
+        # Did not detect a valid UTF-32 ascii-range character
+    return None
+
+
+def prepend_scheme_if_needed(url, new_scheme):
+    """Given a URL that may or may not have a scheme, prepend the given scheme.
+    Does not replace a present scheme with the one provided as an argument.
+
+    :rtype: str
+    """
+    scheme, netloc, path, params, query, fragment = urlparse(url, new_scheme)
+
+    # urlparse is a finicky beast, and sometimes decides that there isn't a
+    # netloc present. Assume that it's being over-cautious, and switch netloc
+    # and path if urlparse decided there was no netloc.
+    if not netloc:
+        netloc, path = path, netloc
+
+    return urlunparse((scheme, netloc, path, params, query, fragment))
+
+
+def get_auth_from_url(url):
+    """Given a url with authentication components, extract them into a tuple of
+    username,password.
+
+    :rtype: (str,str)
+    """
+    parsed = urlparse(url)
+
+    try:
+        auth = (unquote(parsed.username), unquote(parsed.password))
+    except (AttributeError, TypeError):
+        auth = ('', '')
+
+    return auth
+
+
+def to_native_string(string, encoding='ascii'):
+    """Given a string object, regardless of type, returns a representation of
+    that string in the native string type, encoding and decoding where
+    necessary. This assumes ASCII unless told otherwise.
+    """
+    if isinstance(string, builtin_str):
+        out = string
+    else:
+        if is_py2:
+            out = string.encode(encoding)
+        else:
+            out = string.decode(encoding)
+
+    return out
+
+
+# Moved outside of function to avoid recompile every call
+_CLEAN_HEADER_REGEX_BYTE = re.compile(b'^\\S[^\\r\\n]*$|^$')
+_CLEAN_HEADER_REGEX_STR = re.compile(r'^\S[^\r\n]*$|^$')
+
+def check_header_validity(header):
+    """Verifies that header value is a string which doesn't contain
+    leading whitespace or return characters. This prevents unintended
+    header injection.
+
+    :param header: tuple, in the format (name, value).
+    """
+    name, value = header
+
+    if isinstance(value, bytes):
+        pat = _CLEAN_HEADER_REGEX_BYTE
+    else:
+        pat = _CLEAN_HEADER_REGEX_STR
+    try:
+        if not pat.match(value):
+            raise InvalidHeader("Invalid return character or leading space in header: %s" % name)
+    except TypeError:
+        raise InvalidHeader("Header value %s must be of type str or bytes, "
+                            "not %s" % (value, type(value)))
+
+
+def urldefragauth(url):
+    """
+    Given a url remove the fragment and the authentication part.
+
+    :rtype: str
+    """
+    scheme, netloc, path, params, query, fragment = urlparse(url)
+
+    # see func:`prepend_scheme_if_needed`
+    if not netloc:
+        netloc, path = path, netloc
+
+    netloc = netloc.rsplit('@', 1)[-1]
+
+    return urlunparse((scheme, netloc, path, params, query, ''))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/retrying.py b/venv1/lib/python3.5/site-packages/pip/_vendor/retrying.py
new file mode 100644
index 0000000..6d1e627
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/retrying.py
@@ -0,0 +1,267 @@
+## Copyright 2013-2014 Ray Holder
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+
+import random
+from pip._vendor import six
+import sys
+import time
+import traceback
+
+
+# sys.maxint / 2, since Python 3.2 doesn't have a sys.maxint...
+MAX_WAIT = 1073741823
+
+
+def retry(*dargs, **dkw):
+    """
+    Decorator function that instantiates the Retrying object
+    @param *dargs: positional arguments passed to Retrying object
+    @param **dkw: keyword arguments passed to the Retrying object
+    """
+    # support both @retry and @retry() as valid syntax
+    if len(dargs) == 1 and callable(dargs[0]):
+        def wrap_simple(f):
+
+            @six.wraps(f)
+            def wrapped_f(*args, **kw):
+                return Retrying().call(f, *args, **kw)
+
+            return wrapped_f
+
+        return wrap_simple(dargs[0])
+
+    else:
+        def wrap(f):
+
+            @six.wraps(f)
+            def wrapped_f(*args, **kw):
+                return Retrying(*dargs, **dkw).call(f, *args, **kw)
+
+            return wrapped_f
+
+        return wrap
+
+
+class Retrying(object):
+
+    def __init__(self,
+                 stop=None, wait=None,
+                 stop_max_attempt_number=None,
+                 stop_max_delay=None,
+                 wait_fixed=None,
+                 wait_random_min=None, wait_random_max=None,
+                 wait_incrementing_start=None, wait_incrementing_increment=None,
+                 wait_exponential_multiplier=None, wait_exponential_max=None,
+                 retry_on_exception=None,
+                 retry_on_result=None,
+                 wrap_exception=False,
+                 stop_func=None,
+                 wait_func=None,
+                 wait_jitter_max=None):
+
+        self._stop_max_attempt_number = 5 if stop_max_attempt_number is None else stop_max_attempt_number
+        self._stop_max_delay = 100 if stop_max_delay is None else stop_max_delay
+        self._wait_fixed = 1000 if wait_fixed is None else wait_fixed
+        self._wait_random_min = 0 if wait_random_min is None else wait_random_min
+        self._wait_random_max = 1000 if wait_random_max is None else wait_random_max
+        self._wait_incrementing_start = 0 if wait_incrementing_start is None else wait_incrementing_start
+        self._wait_incrementing_increment = 100 if wait_incrementing_increment is None else wait_incrementing_increment
+        self._wait_exponential_multiplier = 1 if wait_exponential_multiplier is None else wait_exponential_multiplier
+        self._wait_exponential_max = MAX_WAIT if wait_exponential_max is None else wait_exponential_max
+        self._wait_jitter_max = 0 if wait_jitter_max is None else wait_jitter_max
+
+        # TODO add chaining of stop behaviors
+        # stop behavior
+        stop_funcs = []
+        if stop_max_attempt_number is not None:
+            stop_funcs.append(self.stop_after_attempt)
+
+        if stop_max_delay is not None:
+            stop_funcs.append(self.stop_after_delay)
+
+        if stop_func is not None:
+            self.stop = stop_func
+
+        elif stop is None:
+            self.stop = lambda attempts, delay: any(f(attempts, delay) for f in stop_funcs)
+
+        else:
+            self.stop = getattr(self, stop)
+
+        # TODO add chaining of wait behaviors
+        # wait behavior
+        wait_funcs = [lambda *args, **kwargs: 0]
+        if wait_fixed is not None:
+            wait_funcs.append(self.fixed_sleep)
+
+        if wait_random_min is not None or wait_random_max is not None:
+            wait_funcs.append(self.random_sleep)
+
+        if wait_incrementing_start is not None or wait_incrementing_increment is not None:
+            wait_funcs.append(self.incrementing_sleep)
+
+        if wait_exponential_multiplier is not None or wait_exponential_max is not None:
+            wait_funcs.append(self.exponential_sleep)
+
+        if wait_func is not None:
+            self.wait = wait_func
+
+        elif wait is None:
+            self.wait = lambda attempts, delay: max(f(attempts, delay) for f in wait_funcs)
+
+        else:
+            self.wait = getattr(self, wait)
+
+        # retry on exception filter
+        if retry_on_exception is None:
+            self._retry_on_exception = self.always_reject
+        else:
+            self._retry_on_exception = retry_on_exception
+
+        # TODO simplify retrying by Exception types
+        # retry on result filter
+        if retry_on_result is None:
+            self._retry_on_result = self.never_reject
+        else:
+            self._retry_on_result = retry_on_result
+
+        self._wrap_exception = wrap_exception
+
+    def stop_after_attempt(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Stop after the previous attempt >= stop_max_attempt_number."""
+        return previous_attempt_number >= self._stop_max_attempt_number
+
+    def stop_after_delay(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Stop after the time from the first attempt >= stop_max_delay."""
+        return delay_since_first_attempt_ms >= self._stop_max_delay
+
+    def no_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Don't sleep at all before retrying."""
+        return 0
+
+    def fixed_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Sleep a fixed amount of time between each retry."""
+        return self._wait_fixed
+
+    def random_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """Sleep a random amount of time between wait_random_min and wait_random_max"""
+        return random.randint(self._wait_random_min, self._wait_random_max)
+
+    def incrementing_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        """
+        Sleep an incremental amount of time after each attempt, starting at
+        wait_incrementing_start and incrementing by wait_incrementing_increment
+        """
+        result = self._wait_incrementing_start + (self._wait_incrementing_increment * (previous_attempt_number - 1))
+        if result < 0:
+            result = 0
+        return result
+
+    def exponential_sleep(self, previous_attempt_number, delay_since_first_attempt_ms):
+        exp = 2 ** previous_attempt_number
+        result = self._wait_exponential_multiplier * exp
+        if result > self._wait_exponential_max:
+            result = self._wait_exponential_max
+        if result < 0:
+            result = 0
+        return result
+
+    def never_reject(self, result):
+        return False
+
+    def always_reject(self, result):
+        return True
+
+    def should_reject(self, attempt):
+        reject = False
+        if attempt.has_exception:
+            reject |= self._retry_on_exception(attempt.value[1])
+        else:
+            reject |= self._retry_on_result(attempt.value)
+
+        return reject
+
+    def call(self, fn, *args, **kwargs):
+        start_time = int(round(time.time() * 1000))
+        attempt_number = 1
+        while True:
+            try:
+                attempt = Attempt(fn(*args, **kwargs), attempt_number, False)
+            except:
+                tb = sys.exc_info()
+                attempt = Attempt(tb, attempt_number, True)
+
+            if not self.should_reject(attempt):
+                return attempt.get(self._wrap_exception)
+
+            delay_since_first_attempt_ms = int(round(time.time() * 1000)) - start_time
+            if self.stop(attempt_number, delay_since_first_attempt_ms):
+                if not self._wrap_exception and attempt.has_exception:
+                    # get() on an attempt with an exception should cause it to be raised, but raise just in case
+                    raise attempt.get()
+                else:
+                    raise RetryError(attempt)
+            else:
+                sleep = self.wait(attempt_number, delay_since_first_attempt_ms)
+                if self._wait_jitter_max:
+                    jitter = random.random() * self._wait_jitter_max
+                    sleep = sleep + max(0, jitter)
+                time.sleep(sleep / 1000.0)
+
+            attempt_number += 1
+
+
+class Attempt(object):
+    """
+    An Attempt encapsulates a call to a target function that may end as a
+    normal return value from the function or an Exception depending on what
+    occurred during the execution.
+    """
+
+    def __init__(self, value, attempt_number, has_exception):
+        self.value = value
+        self.attempt_number = attempt_number
+        self.has_exception = has_exception
+
+    def get(self, wrap_exception=False):
+        """
+        Return the return value of this Attempt instance or raise an Exception.
+        If wrap_exception is true, this Attempt is wrapped inside of a
+        RetryError before being raised.
+        """
+        if self.has_exception:
+            if wrap_exception:
+                raise RetryError(self)
+            else:
+                six.reraise(self.value[0], self.value[1], self.value[2])
+        else:
+            return self.value
+
+    def __repr__(self):
+        if self.has_exception:
+            return "Attempts: {0}, Error:\n{1}".format(self.attempt_number, "".join(traceback.format_tb(self.value[2])))
+        else:
+            return "Attempts: {0}, Value: {1}".format(self.attempt_number, self.value)
+
+
+class RetryError(Exception):
+    """
+    A RetryError encapsulates the last Attempt instance right before giving up.
+    """
+
+    def __init__(self, last_attempt):
+        self.last_attempt = last_attempt
+
+    def __str__(self):
+        return "RetryError[{0}]".format(self.last_attempt)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/six.py b/venv1/lib/python3.5/site-packages/pip/_vendor/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py
new file mode 100644
index 0000000..03d5d35
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/__init__.py
@@ -0,0 +1,342 @@
+# coding: utf8
+"""
+
+    webencodings
+    ~~~~~~~~~~~~
+
+    This is a Python implementation of the `WHATWG Encoding standard
+    <http://encoding.spec.whatwg.org/>`. See README for details.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+import codecs
+
+from .labels import LABELS
+
+
+VERSION = '0.5'
+
+
+# Some names in Encoding are not valid Python aliases. Remap these.
+PYTHON_NAMES = {
+    'iso-8859-8-i': 'iso-8859-8',
+    'x-mac-cyrillic': 'mac-cyrillic',
+    'macintosh': 'mac-roman',
+    'windows-874': 'cp874'}
+
+CACHE = {}
+
+
+def ascii_lower(string):
+    r"""Transform (only) ASCII letters to lower case: A-Z is mapped to a-z.
+
+    :param string: An Unicode string.
+    :returns: A new Unicode string.
+
+    This is used for `ASCII case-insensitive
+    <http://encoding.spec.whatwg.org/#ascii-case-insensitive>`_
+    matching of encoding labels.
+    The same matching is also used, among other things,
+    for `CSS keywords <http://dev.w3.org/csswg/css-values/#keywords>`_.
+
+    This is different from the :meth:`~py:str.lower` method of Unicode strings
+    which also affect non-ASCII characters,
+    sometimes mapping them into the ASCII range:
+
+        >>> keyword = u'Bac\N{KELVIN SIGN}ground'
+        >>> assert keyword.lower() == u'background'
+        >>> assert ascii_lower(keyword) != keyword.lower()
+        >>> assert ascii_lower(keyword) == u'bac\N{KELVIN SIGN}ground'
+
+    """
+    # This turns out to be faster than unicode.translate()
+    return string.encode('utf8').lower().decode('utf8')
+
+
+def lookup(label):
+    """
+    Look for an encoding by its label.
+    This is the spec’s `get an encoding
+    <http://encoding.spec.whatwg.org/#concept-encoding-get>`_ algorithm.
+    Supported labels are listed there.
+
+    :param label: A string.
+    :returns:
+        An :class:`Encoding` object, or :obj:`None` for an unknown label.
+
+    """
+    # Only strip ASCII whitespace: U+0009, U+000A, U+000C, U+000D, and U+0020.
+    label = ascii_lower(label.strip('\t\n\f\r '))
+    name = LABELS.get(label)
+    if name is None:
+        return None
+    encoding = CACHE.get(name)
+    if encoding is None:
+        if name == 'x-user-defined':
+            from .x_user_defined import codec_info
+        else:
+            python_name = PYTHON_NAMES.get(name, name)
+            # Any python_name value that gets to here should be valid.
+            codec_info = codecs.lookup(python_name)
+        encoding = Encoding(name, codec_info)
+        CACHE[name] = encoding
+    return encoding
+
+
+def _get_encoding(encoding_or_label):
+    """
+    Accept either an encoding object or label.
+
+    :param encoding: An :class:`Encoding` object or a label string.
+    :returns: An :class:`Encoding` object.
+    :raises: :exc:`~exceptions.LookupError` for an unknown label.
+
+    """
+    if hasattr(encoding_or_label, 'codec_info'):
+        return encoding_or_label
+
+    encoding = lookup(encoding_or_label)
+    if encoding is None:
+        raise LookupError('Unknown encoding label: %r' % encoding_or_label)
+    return encoding
+
+
+class Encoding(object):
+    """Reresents a character encoding such as UTF-8,
+    that can be used for decoding or encoding.
+
+    .. attribute:: name
+
+        Canonical name of the encoding
+
+    .. attribute:: codec_info
+
+        The actual implementation of the encoding,
+        a stdlib :class:`~codecs.CodecInfo` object.
+        See :func:`codecs.register`.
+
+    """
+    def __init__(self, name, codec_info):
+        self.name = name
+        self.codec_info = codec_info
+
+    def __repr__(self):
+        return '<Encoding %s>' % self.name
+
+
+#: The UTF-8 encoding. Should be used for new content and formats.
+UTF8 = lookup('utf-8')
+
+_UTF16LE = lookup('utf-16le')
+_UTF16BE = lookup('utf-16be')
+
+
+def decode(input, fallback_encoding, errors='replace'):
+    """
+    Decode a single string.
+
+    :param input: A byte string
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :return:
+        A ``(output, encoding)`` tuple of an Unicode string
+        and an :obj:`Encoding`.
+
+    """
+    # Fail early if `encoding` is an invalid label.
+    fallback_encoding = _get_encoding(fallback_encoding)
+    bom_encoding, input = _detect_bom(input)
+    encoding = bom_encoding or fallback_encoding
+    return encoding.codec_info.decode(input, errors)[0], encoding
+
+
+def _detect_bom(input):
+    """Return (bom_encoding, input), with any BOM removed from the input."""
+    if input.startswith(b'\xFF\xFE'):
+        return _UTF16LE, input[2:]
+    if input.startswith(b'\xFE\xFF'):
+        return _UTF16BE, input[2:]
+    if input.startswith(b'\xEF\xBB\xBF'):
+        return UTF8, input[3:]
+    return None, input
+
+
+def encode(input, encoding=UTF8, errors='strict'):
+    """
+    Encode a single string.
+
+    :param input: An Unicode string.
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :return: A byte string.
+
+    """
+    return _get_encoding(encoding).codec_info.encode(input, errors)[0]
+
+
+def iter_decode(input, fallback_encoding, errors='replace'):
+    """
+    "Pull"-based decoder.
+
+    :param input:
+        An iterable of byte strings.
+
+        The input is first consumed just enough to determine the encoding
+        based on the precense of a BOM,
+        then consumed on demand when the return value is.
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :returns:
+        An ``(output, encoding)`` tuple.
+        :obj:`output` is an iterable of Unicode strings,
+        :obj:`encoding` is the :obj:`Encoding` that is being used.
+
+    """
+
+    decoder = IncrementalDecoder(fallback_encoding, errors)
+    generator = _iter_decode_generator(input, decoder)
+    encoding = next(generator)
+    return generator, encoding
+
+
+def _iter_decode_generator(input, decoder):
+    """Return a generator that first yields the :obj:`Encoding`,
+    then yields output chukns as Unicode strings.
+
+    """
+    decode = decoder.decode
+    input = iter(input)
+    for chunck in input:
+        output = decode(chunck)
+        if output:
+            assert decoder.encoding is not None
+            yield decoder.encoding
+            yield output
+            break
+    else:
+        # Input exhausted without determining the encoding
+        output = decode(b'', final=True)
+        assert decoder.encoding is not None
+        yield decoder.encoding
+        if output:
+            yield output
+        return
+
+    for chunck in input:
+        output = decode(chunck)
+        if output:
+            yield output
+    output = decode(b'', final=True)
+    if output:
+        yield output
+
+
+def iter_encode(input, encoding=UTF8, errors='strict'):
+    """
+    “Pull”-based encoder.
+
+    :param input: An iterable of Unicode strings.
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+    :returns: An iterable of byte strings.
+
+    """
+    # Fail early if `encoding` is an invalid label.
+    encode = IncrementalEncoder(encoding, errors).encode
+    return _iter_encode_generator(input, encode)
+
+
+def _iter_encode_generator(input, encode):
+    for chunck in input:
+        output = encode(chunck)
+        if output:
+            yield output
+    output = encode('', final=True)
+    if output:
+        yield output
+
+
+class IncrementalDecoder(object):
+    """
+    “Push”-based decoder.
+
+    :param fallback_encoding:
+        An :class:`Encoding` object or a label string.
+        The encoding to use if :obj:`input` does note have a BOM.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+
+    """
+    def __init__(self, fallback_encoding, errors='replace'):
+        # Fail early if `encoding` is an invalid label.
+        self._fallback_encoding = _get_encoding(fallback_encoding)
+        self._errors = errors
+        self._buffer = b''
+        self._decoder = None
+        #: The actual :class:`Encoding` that is being used,
+        #: or :obj:`None` if that is not determined yet.
+        #: (Ie. if there is not enough input yet to determine
+        #: if there is a BOM.)
+        self.encoding = None  # Not known yet.
+
+    def decode(self, input, final=False):
+        """Decode one chunk of the input.
+
+        :param input: A byte string.
+        :param final:
+            Indicate that no more input is available.
+            Must be :obj:`True` if this is the last call.
+        :returns: An Unicode string.
+
+        """
+        decoder = self._decoder
+        if decoder is not None:
+            return decoder(input, final)
+
+        input = self._buffer + input
+        encoding, input = _detect_bom(input)
+        if encoding is None:
+            if len(input) < 3 and not final:  # Not enough data yet.
+                self._buffer = input
+                return ''
+            else:  # No BOM
+                encoding = self._fallback_encoding
+        decoder = encoding.codec_info.incrementaldecoder(self._errors).decode
+        self._decoder = decoder
+        self.encoding = encoding
+        return decoder(input, final)
+
+
+class IncrementalEncoder(object):
+    """
+    “Push”-based encoder.
+
+    :param encoding: An :class:`Encoding` object or a label string.
+    :param errors: Type of error handling. See :func:`codecs.register`.
+    :raises: :exc:`~exceptions.LookupError` for an unknown encoding label.
+
+    .. method:: encode(input, final=False)
+
+        :param input: An Unicode string.
+        :param final:
+            Indicate that no more input is available.
+            Must be :obj:`True` if this is the last call.
+        :returns: A byte string.
+
+    """
+    def __init__(self, encoding=UTF8, errors='strict'):
+        encoding = _get_encoding(encoding)
+        self.encode = encoding.codec_info.incrementalencoder(errors).encode
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diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py
new file mode 100644
index 0000000..29cbf91
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/labels.py
@@ -0,0 +1,231 @@
+"""
+
+    webencodings.labels
+    ~~~~~~~~~~~~~~~~~~~
+
+    Map encoding labels to their name.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+# XXX Do not edit!
+# This file is automatically generated by mklabels.py
+
+LABELS = {
+    'unicode-1-1-utf-8':   'utf-8',
+    'utf-8':               'utf-8',
+    'utf8':                'utf-8',
+    '866':                 'ibm866',
+    'cp866':               'ibm866',
+    'csibm866':            'ibm866',
+    'ibm866':              'ibm866',
+    'csisolatin2':         'iso-8859-2',
+    'iso-8859-2':          'iso-8859-2',
+    'iso-ir-101':          'iso-8859-2',
+    'iso8859-2':           'iso-8859-2',
+    'iso88592':            'iso-8859-2',
+    'iso_8859-2':          'iso-8859-2',
+    'iso_8859-2:1987':     'iso-8859-2',
+    'l2':                  'iso-8859-2',
+    'latin2':              'iso-8859-2',
+    'csisolatin3':         'iso-8859-3',
+    'iso-8859-3':          'iso-8859-3',
+    'iso-ir-109':          'iso-8859-3',
+    'iso8859-3':           'iso-8859-3',
+    'iso88593':            'iso-8859-3',
+    'iso_8859-3':          'iso-8859-3',
+    'iso_8859-3:1988':     'iso-8859-3',
+    'l3':                  'iso-8859-3',
+    'latin3':              'iso-8859-3',
+    'csisolatin4':         'iso-8859-4',
+    'iso-8859-4':          'iso-8859-4',
+    'iso-ir-110':          'iso-8859-4',
+    'iso8859-4':           'iso-8859-4',
+    'iso88594':            'iso-8859-4',
+    'iso_8859-4':          'iso-8859-4',
+    'iso_8859-4:1988':     'iso-8859-4',
+    'l4':                  'iso-8859-4',
+    'latin4':              'iso-8859-4',
+    'csisolatincyrillic':  'iso-8859-5',
+    'cyrillic':            'iso-8859-5',
+    'iso-8859-5':          'iso-8859-5',
+    'iso-ir-144':          'iso-8859-5',
+    'iso8859-5':           'iso-8859-5',
+    'iso88595':            'iso-8859-5',
+    'iso_8859-5':          'iso-8859-5',
+    'iso_8859-5:1988':     'iso-8859-5',
+    'arabic':              'iso-8859-6',
+    'asmo-708':            'iso-8859-6',
+    'csiso88596e':         'iso-8859-6',
+    'csiso88596i':         'iso-8859-6',
+    'csisolatinarabic':    'iso-8859-6',
+    'ecma-114':            'iso-8859-6',
+    'iso-8859-6':          'iso-8859-6',
+    'iso-8859-6-e':        'iso-8859-6',
+    'iso-8859-6-i':        'iso-8859-6',
+    'iso-ir-127':          'iso-8859-6',
+    'iso8859-6':           'iso-8859-6',
+    'iso88596':            'iso-8859-6',
+    'iso_8859-6':          'iso-8859-6',
+    'iso_8859-6:1987':     'iso-8859-6',
+    'csisolatingreek':     'iso-8859-7',
+    'ecma-118':            'iso-8859-7',
+    'elot_928':            'iso-8859-7',
+    'greek':               'iso-8859-7',
+    'greek8':              'iso-8859-7',
+    'iso-8859-7':          'iso-8859-7',
+    'iso-ir-126':          'iso-8859-7',
+    'iso8859-7':           'iso-8859-7',
+    'iso88597':            'iso-8859-7',
+    'iso_8859-7':          'iso-8859-7',
+    'iso_8859-7:1987':     'iso-8859-7',
+    'sun_eu_greek':        'iso-8859-7',
+    'csiso88598e':         'iso-8859-8',
+    'csisolatinhebrew':    'iso-8859-8',
+    'hebrew':              'iso-8859-8',
+    'iso-8859-8':          'iso-8859-8',
+    'iso-8859-8-e':        'iso-8859-8',
+    'iso-ir-138':          'iso-8859-8',
+    'iso8859-8':           'iso-8859-8',
+    'iso88598':            'iso-8859-8',
+    'iso_8859-8':          'iso-8859-8',
+    'iso_8859-8:1988':     'iso-8859-8',
+    'visual':              'iso-8859-8',
+    'csiso88598i':         'iso-8859-8-i',
+    'iso-8859-8-i':        'iso-8859-8-i',
+    'logical':             'iso-8859-8-i',
+    'csisolatin6':         'iso-8859-10',
+    'iso-8859-10':         'iso-8859-10',
+    'iso-ir-157':          'iso-8859-10',
+    'iso8859-10':          'iso-8859-10',
+    'iso885910':           'iso-8859-10',
+    'l6':                  'iso-8859-10',
+    'latin6':              'iso-8859-10',
+    'iso-8859-13':         'iso-8859-13',
+    'iso8859-13':          'iso-8859-13',
+    'iso885913':           'iso-8859-13',
+    'iso-8859-14':         'iso-8859-14',
+    'iso8859-14':          'iso-8859-14',
+    'iso885914':           'iso-8859-14',
+    'csisolatin9':         'iso-8859-15',
+    'iso-8859-15':         'iso-8859-15',
+    'iso8859-15':          'iso-8859-15',
+    'iso885915':           'iso-8859-15',
+    'iso_8859-15':         'iso-8859-15',
+    'l9':                  'iso-8859-15',
+    'iso-8859-16':         'iso-8859-16',
+    'cskoi8r':             'koi8-r',
+    'koi':                 'koi8-r',
+    'koi8':                'koi8-r',
+    'koi8-r':              'koi8-r',
+    'koi8_r':              'koi8-r',
+    'koi8-u':              'koi8-u',
+    'csmacintosh':         'macintosh',
+    'mac':                 'macintosh',
+    'macintosh':           'macintosh',
+    'x-mac-roman':         'macintosh',
+    'dos-874':             'windows-874',
+    'iso-8859-11':         'windows-874',
+    'iso8859-11':          'windows-874',
+    'iso885911':           'windows-874',
+    'tis-620':             'windows-874',
+    'windows-874':         'windows-874',
+    'cp1250':              'windows-1250',
+    'windows-1250':        'windows-1250',
+    'x-cp1250':            'windows-1250',
+    'cp1251':              'windows-1251',
+    'windows-1251':        'windows-1251',
+    'x-cp1251':            'windows-1251',
+    'ansi_x3.4-1968':      'windows-1252',
+    'ascii':               'windows-1252',
+    'cp1252':              'windows-1252',
+    'cp819':               'windows-1252',
+    'csisolatin1':         'windows-1252',
+    'ibm819':              'windows-1252',
+    'iso-8859-1':          'windows-1252',
+    'iso-ir-100':          'windows-1252',
+    'iso8859-1':           'windows-1252',
+    'iso88591':            'windows-1252',
+    'iso_8859-1':          'windows-1252',
+    'iso_8859-1:1987':     'windows-1252',
+    'l1':                  'windows-1252',
+    'latin1':              'windows-1252',
+    'us-ascii':            'windows-1252',
+    'windows-1252':        'windows-1252',
+    'x-cp1252':            'windows-1252',
+    'cp1253':              'windows-1253',
+    'windows-1253':        'windows-1253',
+    'x-cp1253':            'windows-1253',
+    'cp1254':              'windows-1254',
+    'csisolatin5':         'windows-1254',
+    'iso-8859-9':          'windows-1254',
+    'iso-ir-148':          'windows-1254',
+    'iso8859-9':           'windows-1254',
+    'iso88599':            'windows-1254',
+    'iso_8859-9':          'windows-1254',
+    'iso_8859-9:1989':     'windows-1254',
+    'l5':                  'windows-1254',
+    'latin5':              'windows-1254',
+    'windows-1254':        'windows-1254',
+    'x-cp1254':            'windows-1254',
+    'cp1255':              'windows-1255',
+    'windows-1255':        'windows-1255',
+    'x-cp1255':            'windows-1255',
+    'cp1256':              'windows-1256',
+    'windows-1256':        'windows-1256',
+    'x-cp1256':            'windows-1256',
+    'cp1257':              'windows-1257',
+    'windows-1257':        'windows-1257',
+    'x-cp1257':            'windows-1257',
+    'cp1258':              'windows-1258',
+    'windows-1258':        'windows-1258',
+    'x-cp1258':            'windows-1258',
+    'x-mac-cyrillic':      'x-mac-cyrillic',
+    'x-mac-ukrainian':     'x-mac-cyrillic',
+    'chinese':             'gbk',
+    'csgb2312':            'gbk',
+    'csiso58gb231280':     'gbk',
+    'gb2312':              'gbk',
+    'gb_2312':             'gbk',
+    'gb_2312-80':          'gbk',
+    'gbk':                 'gbk',
+    'iso-ir-58':           'gbk',
+    'x-gbk':               'gbk',
+    'gb18030':             'gb18030',
+    'hz-gb-2312':          'hz-gb-2312',
+    'big5':                'big5',
+    'big5-hkscs':          'big5',
+    'cn-big5':             'big5',
+    'csbig5':              'big5',
+    'x-x-big5':            'big5',
+    'cseucpkdfmtjapanese': 'euc-jp',
+    'euc-jp':              'euc-jp',
+    'x-euc-jp':            'euc-jp',
+    'csiso2022jp':         'iso-2022-jp',
+    'iso-2022-jp':         'iso-2022-jp',
+    'csshiftjis':          'shift_jis',
+    'ms_kanji':            'shift_jis',
+    'shift-jis':           'shift_jis',
+    'shift_jis':           'shift_jis',
+    'sjis':                'shift_jis',
+    'windows-31j':         'shift_jis',
+    'x-sjis':              'shift_jis',
+    'cseuckr':             'euc-kr',
+    'csksc56011987':       'euc-kr',
+    'euc-kr':              'euc-kr',
+    'iso-ir-149':          'euc-kr',
+    'korean':              'euc-kr',
+    'ks_c_5601-1987':      'euc-kr',
+    'ks_c_5601-1989':      'euc-kr',
+    'ksc5601':             'euc-kr',
+    'ksc_5601':            'euc-kr',
+    'windows-949':         'euc-kr',
+    'csiso2022kr':         'iso-2022-kr',
+    'iso-2022-kr':         'iso-2022-kr',
+    'utf-16be':            'utf-16be',
+    'utf-16':              'utf-16le',
+    'utf-16le':            'utf-16le',
+    'x-user-defined':      'x-user-defined',
+}
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py
new file mode 100644
index 0000000..295dc92
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/mklabels.py
@@ -0,0 +1,59 @@
+"""
+
+    webencodings.mklabels
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Regenarate the webencodings.labels module.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+import json
+try:
+    from urllib import urlopen
+except ImportError:
+    from urllib.request import urlopen
+
+
+def assert_lower(string):
+    assert string == string.lower()
+    return string
+
+
+def generate(url):
+    parts = ['''\
+"""
+
+    webencodings.labels
+    ~~~~~~~~~~~~~~~~~~~
+
+    Map encoding labels to their name.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+# XXX Do not edit!
+# This file is automatically generated by mklabels.py
+
+LABELS = {
+''']
+    labels = [
+        (repr(assert_lower(label)).lstrip('u'),
+         repr(encoding['name']).lstrip('u'))
+        for category in json.loads(urlopen(url).read().decode('ascii'))
+        for encoding in category['encodings']
+        for label in encoding['labels']]
+    max_len = max(len(label) for label, name in labels)
+    parts.extend(
+        '    %s:%s %s,\n' % (label, ' ' * (max_len - len(label)), name)
+        for label, name in labels)
+    parts.append('}')
+    return ''.join(parts)
+
+
+if __name__ == '__main__':
+    print(generate('http://encoding.spec.whatwg.org/encodings.json'))
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py
new file mode 100644
index 0000000..b8c5653
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/tests.py
@@ -0,0 +1,153 @@
+# coding: utf8
+"""
+
+    webencodings.tests
+    ~~~~~~~~~~~~~~~~~~
+
+    A basic test suite for Encoding.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+from . import (lookup, LABELS, decode, encode, iter_decode, iter_encode,
+               IncrementalDecoder, IncrementalEncoder, UTF8)
+
+
+def assert_raises(exception, function, *args, **kwargs):
+    try:
+        function(*args, **kwargs)
+    except exception:
+        return
+    else:  # pragma: no cover
+        raise AssertionError('Did not raise %s.' % exception)
+
+
+def test_labels():
+    assert lookup('utf-8').name == 'utf-8'
+    assert lookup('Utf-8').name == 'utf-8'
+    assert lookup('UTF-8').name == 'utf-8'
+    assert lookup('utf8').name == 'utf-8'
+    assert lookup('utf8').name == 'utf-8'
+    assert lookup('utf8 ').name == 'utf-8'
+    assert lookup(' \r\nutf8\t').name == 'utf-8'
+    assert lookup('u8') is None  # Python label.
+    assert lookup('utf-8 ') is None  # Non-ASCII white space.
+
+    assert lookup('US-ASCII').name == 'windows-1252'
+    assert lookup('iso-8859-1').name == 'windows-1252'
+    assert lookup('latin1').name == 'windows-1252'
+    assert lookup('LATIN1').name == 'windows-1252'
+    assert lookup('latin-1') is None
+    assert lookup('LATİN1') is None  # ASCII-only case insensitivity.
+
+
+def test_all_labels():
+    for label in LABELS:
+        assert decode(b'', label) == ('', lookup(label))
+        assert encode('', label) == b''
+        for repeat in [0, 1, 12]:
+            output, _ = iter_decode([b''] * repeat, label)
+            assert list(output) == []
+            assert list(iter_encode([''] * repeat, label)) == []
+        decoder = IncrementalDecoder(label)
+        assert decoder.decode(b'') == ''
+        assert decoder.decode(b'', final=True) == ''
+        encoder = IncrementalEncoder(label)
+        assert encoder.encode('') == b''
+        assert encoder.encode('', final=True) == b''
+    # All encoding names are valid labels too:
+    for name in set(LABELS.values()):
+        assert lookup(name).name == name
+
+
+def test_invalid_label():
+    assert_raises(LookupError, decode, b'\xEF\xBB\xBF\xc3\xa9', 'invalid')
+    assert_raises(LookupError, encode, 'é', 'invalid')
+    assert_raises(LookupError, iter_decode, [], 'invalid')
+    assert_raises(LookupError, iter_encode, [], 'invalid')
+    assert_raises(LookupError, IncrementalDecoder, 'invalid')
+    assert_raises(LookupError, IncrementalEncoder, 'invalid')
+
+
+def test_decode():
+    assert decode(b'\x80', 'latin1') == ('€', lookup('latin1'))
+    assert decode(b'\x80', lookup('latin1')) == ('€', lookup('latin1'))
+    assert decode(b'\xc3\xa9', 'utf8') == ('é', lookup('utf8'))
+    assert decode(b'\xc3\xa9', UTF8) == ('é', lookup('utf8'))
+    assert decode(b'\xc3\xa9', 'ascii') == ('Ã©', lookup('ascii'))
+    assert decode(b'\xEF\xBB\xBF\xc3\xa9', 'ascii') == ('é', lookup('utf8'))  # UTF-8 with BOM
+
+    assert decode(b'\xFE\xFF\x00\xe9', 'ascii') == ('é', lookup('utf-16be'))  # UTF-16-BE with BOM
+    assert decode(b'\xFF\xFE\xe9\x00', 'ascii') == ('é', lookup('utf-16le'))  # UTF-16-LE with BOM
+    assert decode(b'\xFE\xFF\xe9\x00', 'ascii') == ('\ue900', lookup('utf-16be'))
+    assert decode(b'\xFF\xFE\x00\xe9', 'ascii') == ('\ue900', lookup('utf-16le'))
+
+    assert decode(b'\x00\xe9', 'UTF-16BE') == ('é', lookup('utf-16be'))
+    assert decode(b'\xe9\x00', 'UTF-16LE') == ('é', lookup('utf-16le'))
+    assert decode(b'\xe9\x00', 'UTF-16') == ('é', lookup('utf-16le'))
+
+    assert decode(b'\xe9\x00', 'UTF-16BE') == ('\ue900', lookup('utf-16be'))
+    assert decode(b'\x00\xe9', 'UTF-16LE') == ('\ue900', lookup('utf-16le'))
+    assert decode(b'\x00\xe9', 'UTF-16') == ('\ue900', lookup('utf-16le'))
+
+
+def test_encode():
+    assert encode('é', 'latin1') == b'\xe9'
+    assert encode('é', 'utf8') == b'\xc3\xa9'
+    assert encode('é', 'utf8') == b'\xc3\xa9'
+    assert encode('é', 'utf-16') == b'\xe9\x00'
+    assert encode('é', 'utf-16le') == b'\xe9\x00'
+    assert encode('é', 'utf-16be') == b'\x00\xe9'
+
+
+def test_iter_decode():
+    def iter_decode_to_string(input, fallback_encoding):
+        output, _encoding = iter_decode(input, fallback_encoding)
+        return ''.join(output)
+    assert iter_decode_to_string([], 'latin1') == ''
+    assert iter_decode_to_string([b''], 'latin1') == ''
+    assert iter_decode_to_string([b'\xe9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'hello'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'he', b'llo'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'hell', b'o'], 'latin1') == 'hello'
+    assert iter_decode_to_string([b'\xc3\xa9'], 'latin1') == 'Ã©'
+    assert iter_decode_to_string([b'\xEF\xBB\xBF\xc3\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'\xEF\xBB\xBF', b'\xc3', b'\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'\xEF\xBB\xBF', b'a', b'\xc3'], 'latin1') == 'a\uFFFD'
+    assert iter_decode_to_string([
+        b'', b'\xEF', b'', b'', b'\xBB\xBF\xc3', b'\xa9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'\xEF\xBB\xBF'], 'latin1') == ''
+    assert iter_decode_to_string([b'\xEF\xBB'], 'latin1') == 'ï»'
+    assert iter_decode_to_string([b'\xFE\xFF\x00\xe9'], 'latin1') == 'é'
+    assert iter_decode_to_string([b'\xFF\xFE\xe9\x00'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'', b'\xFF', b'', b'', b'\xFE\xe9', b'\x00'], 'latin1') == 'é'
+    assert iter_decode_to_string([
+        b'', b'h\xe9', b'llo'], 'x-user-defined') == 'h\uF7E9llo'
+
+
+def test_iter_encode():
+    assert b''.join(iter_encode([], 'latin1')) == b''
+    assert b''.join(iter_encode([''], 'latin1')) == b''
+    assert b''.join(iter_encode(['é'], 'latin1')) == b'\xe9'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'latin1')) == b'\xe9'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16')) == b'\xe9\x00'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16le')) == b'\xe9\x00'
+    assert b''.join(iter_encode(['', 'é', '', ''], 'utf-16be')) == b'\x00\xe9'
+    assert b''.join(iter_encode([
+        '', 'h\uF7E9', '', 'llo'], 'x-user-defined')) == b'h\xe9llo'
+
+
+def test_x_user_defined():
+    encoded = b'2,\x0c\x0b\x1aO\xd9#\xcb\x0f\xc9\xbbt\xcf\xa8\xca'
+    decoded = '2,\x0c\x0b\x1aO\uf7d9#\uf7cb\x0f\uf7c9\uf7bbt\uf7cf\uf7a8\uf7ca'
+    encoded = b'aa'
+    decoded = 'aa'
+    assert decode(encoded, 'x-user-defined') == (decoded, lookup('x-user-defined'))
+    assert encode(decoded, 'x-user-defined') == encoded
diff --git a/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py
new file mode 100644
index 0000000..f0daa11
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/_vendor/webencodings/x_user_defined.py
@@ -0,0 +1,325 @@
+# coding: utf8
+"""
+
+    webencodings.x_user_defined
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    An implementation of the x-user-defined encoding.
+
+    :copyright: Copyright 2012 by Simon Sapin
+    :license: BSD, see LICENSE for details.
+
+"""
+
+from __future__ import unicode_literals
+
+import codecs
+
+
+### Codec APIs
+
+class Codec(codecs.Codec):
+
+    def encode(self, input, errors='strict'):
+        return codecs.charmap_encode(input, errors, encoding_table)
+
+    def decode(self, input, errors='strict'):
+        return codecs.charmap_decode(input, errors, decoding_table)
+
+
+class IncrementalEncoder(codecs.IncrementalEncoder):
+    def encode(self, input, final=False):
+        return codecs.charmap_encode(input, self.errors, encoding_table)[0]
+
+
+class IncrementalDecoder(codecs.IncrementalDecoder):
+    def decode(self, input, final=False):
+        return codecs.charmap_decode(input, self.errors, decoding_table)[0]
+
+
+class StreamWriter(Codec, codecs.StreamWriter):
+    pass
+
+
+class StreamReader(Codec, codecs.StreamReader):
+    pass
+
+
+### encodings module API
+
+codec_info = codecs.CodecInfo(
+    name='x-user-defined',
+    encode=Codec().encode,
+    decode=Codec().decode,
+    incrementalencoder=IncrementalEncoder,
+    incrementaldecoder=IncrementalDecoder,
+    streamreader=StreamReader,
+    streamwriter=StreamWriter,
+)
+
+
+### Decoding Table
+
+# Python 3:
+# for c in range(256): print('    %r' % chr(c if c < 128 else c + 0xF700))
+decoding_table = (
+    '\x00'
+    '\x01'
+    '\x02'
+    '\x03'
+    '\x04'
+    '\x05'
+    '\x06'
+    '\x07'
+    '\x08'
+    '\t'
+    '\n'
+    '\x0b'
+    '\x0c'
+    '\r'
+    '\x0e'
+    '\x0f'
+    '\x10'
+    '\x11'
+    '\x12'
+    '\x13'
+    '\x14'
+    '\x15'
+    '\x16'
+    '\x17'
+    '\x18'
+    '\x19'
+    '\x1a'
+    '\x1b'
+    '\x1c'
+    '\x1d'
+    '\x1e'
+    '\x1f'
+    ' '
+    '!'
+    '"'
+    '#'
+    '$'
+    '%'
+    '&'
+    "'"
+    '('
+    ')'
+    '*'
+    '+'
+    ','
+    '-'
+    '.'
+    '/'
+    '0'
+    '1'
+    '2'
+    '3'
+    '4'
+    '5'
+    '6'
+    '7'
+    '8'
+    '9'
+    ':'
+    ';'
+    '<'
+    '='
+    '>'
+    '?'
+    '@'
+    'A'
+    'B'
+    'C'
+    'D'
+    'E'
+    'F'
+    'G'
+    'H'
+    'I'
+    'J'
+    'K'
+    'L'
+    'M'
+    'N'
+    'O'
+    'P'
+    'Q'
+    'R'
+    'S'
+    'T'
+    'U'
+    'V'
+    'W'
+    'X'
+    'Y'
+    'Z'
+    '['
+    '\\'
+    ']'
+    '^'
+    '_'
+    '`'
+    'a'
+    'b'
+    'c'
+    'd'
+    'e'
+    'f'
+    'g'
+    'h'
+    'i'
+    'j'
+    'k'
+    'l'
+    'm'
+    'n'
+    'o'
+    'p'
+    'q'
+    'r'
+    's'
+    't'
+    'u'
+    'v'
+    'w'
+    'x'
+    'y'
+    'z'
+    '{'
+    '|'
+    '}'
+    '~'
+    '\x7f'
+    '\uf780'
+    '\uf781'
+    '\uf782'
+    '\uf783'
+    '\uf784'
+    '\uf785'
+    '\uf786'
+    '\uf787'
+    '\uf788'
+    '\uf789'
+    '\uf78a'
+    '\uf78b'
+    '\uf78c'
+    '\uf78d'
+    '\uf78e'
+    '\uf78f'
+    '\uf790'
+    '\uf791'
+    '\uf792'
+    '\uf793'
+    '\uf794'
+    '\uf795'
+    '\uf796'
+    '\uf797'
+    '\uf798'
+    '\uf799'
+    '\uf79a'
+    '\uf79b'
+    '\uf79c'
+    '\uf79d'
+    '\uf79e'
+    '\uf79f'
+    '\uf7a0'
+    '\uf7a1'
+    '\uf7a2'
+    '\uf7a3'
+    '\uf7a4'
+    '\uf7a5'
+    '\uf7a6'
+    '\uf7a7'
+    '\uf7a8'
+    '\uf7a9'
+    '\uf7aa'
+    '\uf7ab'
+    '\uf7ac'
+    '\uf7ad'
+    '\uf7ae'
+    '\uf7af'
+    '\uf7b0'
+    '\uf7b1'
+    '\uf7b2'
+    '\uf7b3'
+    '\uf7b4'
+    '\uf7b5'
+    '\uf7b6'
+    '\uf7b7'
+    '\uf7b8'
+    '\uf7b9'
+    '\uf7ba'
+    '\uf7bb'
+    '\uf7bc'
+    '\uf7bd'
+    '\uf7be'
+    '\uf7bf'
+    '\uf7c0'
+    '\uf7c1'
+    '\uf7c2'
+    '\uf7c3'
+    '\uf7c4'
+    '\uf7c5'
+    '\uf7c6'
+    '\uf7c7'
+    '\uf7c8'
+    '\uf7c9'
+    '\uf7ca'
+    '\uf7cb'
+    '\uf7cc'
+    '\uf7cd'
+    '\uf7ce'
+    '\uf7cf'
+    '\uf7d0'
+    '\uf7d1'
+    '\uf7d2'
+    '\uf7d3'
+    '\uf7d4'
+    '\uf7d5'
+    '\uf7d6'
+    '\uf7d7'
+    '\uf7d8'
+    '\uf7d9'
+    '\uf7da'
+    '\uf7db'
+    '\uf7dc'
+    '\uf7dd'
+    '\uf7de'
+    '\uf7df'
+    '\uf7e0'
+    '\uf7e1'
+    '\uf7e2'
+    '\uf7e3'
+    '\uf7e4'
+    '\uf7e5'
+    '\uf7e6'
+    '\uf7e7'
+    '\uf7e8'
+    '\uf7e9'
+    '\uf7ea'
+    '\uf7eb'
+    '\uf7ec'
+    '\uf7ed'
+    '\uf7ee'
+    '\uf7ef'
+    '\uf7f0'
+    '\uf7f1'
+    '\uf7f2'
+    '\uf7f3'
+    '\uf7f4'
+    '\uf7f5'
+    '\uf7f6'
+    '\uf7f7'
+    '\uf7f8'
+    '\uf7f9'
+    '\uf7fa'
+    '\uf7fb'
+    '\uf7fc'
+    '\uf7fd'
+    '\uf7fe'
+    '\uf7ff'
+)
+
+### Encoding table
+encoding_table = codecs.charmap_build(decoding_table)
diff --git a/venv1/lib/python3.5/site-packages/pip/basecommand.py b/venv1/lib/python3.5/site-packages/pip/basecommand.py
new file mode 100644
index 0000000..54c6706
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/basecommand.py
@@ -0,0 +1,337 @@
+"""Base Command class, and related routines"""
+from __future__ import absolute_import
+
+import logging
+import os
+import sys
+import optparse
+import warnings
+
+from pip import cmdoptions
+from pip.index import PackageFinder
+from pip.locations import running_under_virtualenv
+from pip.download import PipSession
+from pip.exceptions import (BadCommand, InstallationError, UninstallationError,
+                            CommandError, PreviousBuildDirError)
+
+from pip.compat import logging_dictConfig
+from pip.baseparser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
+from pip.req import InstallRequirement, parse_requirements
+from pip.status_codes import (
+    SUCCESS, ERROR, UNKNOWN_ERROR, VIRTUALENV_NOT_FOUND,
+    PREVIOUS_BUILD_DIR_ERROR,
+)
+from pip.utils import deprecation, get_prog, normalize_path
+from pip.utils.logging import IndentingFormatter
+from pip.utils.outdated import pip_version_check
+
+
+__all__ = ['Command']
+
+
+logger = logging.getLogger(__name__)
+
+
+class Command(object):
+    name = None
+    usage = None
+    hidden = False
+    log_streams = ("ext://sys.stdout", "ext://sys.stderr")
+
+    def __init__(self, isolated=False):
+        parser_kw = {
+            'usage': self.usage,
+            'prog': '%s %s' % (get_prog(), self.name),
+            'formatter': UpdatingDefaultsHelpFormatter(),
+            'add_help_option': False,
+            'name': self.name,
+            'description': self.__doc__,
+            'isolated': isolated,
+        }
+
+        self.parser = ConfigOptionParser(**parser_kw)
+
+        # Commands should add options to this option group
+        optgroup_name = '%s Options' % self.name.capitalize()
+        self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
+
+        # Add the general options
+        gen_opts = cmdoptions.make_option_group(
+            cmdoptions.general_group,
+            self.parser,
+        )
+        self.parser.add_option_group(gen_opts)
+
+    def _build_session(self, options, retries=None, timeout=None):
+        session = PipSession(
+            cache=(
+                normalize_path(os.path.join(options.cache_dir, "http"))
+                if options.cache_dir else None
+            ),
+            retries=retries if retries is not None else options.retries,
+            insecure_hosts=options.trusted_hosts,
+        )
+
+        # Handle custom ca-bundles from the user
+        if options.cert:
+            session.verify = options.cert
+
+        # Handle SSL client certificate
+        if options.client_cert:
+            session.cert = options.client_cert
+
+        # Handle timeouts
+        if options.timeout or timeout:
+            session.timeout = (
+                timeout if timeout is not None else options.timeout
+            )
+
+        # Handle configured proxies
+        if options.proxy:
+            session.proxies = {
+                "http": options.proxy,
+                "https": options.proxy,
+            }
+
+        # Determine if we can prompt the user for authentication or not
+        session.auth.prompting = not options.no_input
+
+        return session
+
+    def parse_args(self, args):
+        # factored out for testability
+        return self.parser.parse_args(args)
+
+    def main(self, args):
+        options, args = self.parse_args(args)
+
+        if options.quiet:
+            if options.quiet == 1:
+                level = "WARNING"
+            if options.quiet == 2:
+                level = "ERROR"
+            else:
+                level = "CRITICAL"
+        elif options.verbose:
+            level = "DEBUG"
+        else:
+            level = "INFO"
+
+        # The root logger should match the "console" level *unless* we
+        # specified "--log" to send debug logs to a file.
+        root_level = level
+        if options.log:
+            root_level = "DEBUG"
+
+        logging_dictConfig({
+            "version": 1,
+            "disable_existing_loggers": False,
+            "filters": {
+                "exclude_warnings": {
+                    "()": "pip.utils.logging.MaxLevelFilter",
+                    "level": logging.WARNING,
+                },
+            },
+            "formatters": {
+                "indent": {
+                    "()": IndentingFormatter,
+                    "format": "%(message)s",
+                },
+            },
+            "handlers": {
+                "console": {
+                    "level": level,
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[0],
+                    "filters": ["exclude_warnings"],
+                    "formatter": "indent",
+                },
+                "console_errors": {
+                    "level": "WARNING",
+                    "class": "pip.utils.logging.ColorizedStreamHandler",
+                    "stream": self.log_streams[1],
+                    "formatter": "indent",
+                },
+                "user_log": {
+                    "level": "DEBUG",
+                    "class": "pip.utils.logging.BetterRotatingFileHandler",
+                    "filename": options.log or "/dev/null",
+                    "delay": True,
+                    "formatter": "indent",
+                },
+            },
+            "root": {
+                "level": root_level,
+                "handlers": list(filter(None, [
+                    "console",
+                    "console_errors",
+                    "user_log" if options.log else None,
+                ])),
+            },
+            # Disable any logging besides WARNING unless we have DEBUG level
+            # logging enabled. These use both pip._vendor and the bare names
+            # for the case where someone unbundles our libraries.
+            "loggers": dict(
+                (
+                    name,
+                    {
+                        "level": (
+                            "WARNING"
+                            if level in ["INFO", "ERROR"]
+                            else "DEBUG"
+                        ),
+                    },
+                )
+                for name in ["pip._vendor", "distlib", "requests", "urllib3"]
+            ),
+        })
+
+        if sys.version_info[:2] == (2, 6):
+            warnings.warn(
+                "Python 2.6 is no longer supported by the Python core team, "
+                "please upgrade your Python. A future version of pip will "
+                "drop support for Python 2.6",
+                deprecation.Python26DeprecationWarning
+            )
+
+        # TODO: try to get these passing down from the command?
+        #      without resorting to os.environ to hold these.
+
+        if options.no_input:
+            os.environ['PIP_NO_INPUT'] = '1'
+
+        if options.exists_action:
+            os.environ['PIP_EXISTS_ACTION'] = ' '.join(options.exists_action)
+
+        if options.require_venv:
+            # If a venv is required check if it can really be found
+            if not running_under_virtualenv():
+                logger.critical(
+                    'Could not find an activated virtualenv (required).'
+                )
+                sys.exit(VIRTUALENV_NOT_FOUND)
+
+        try:
+            status = self.run(options, args)
+            # FIXME: all commands should return an exit status
+            # and when it is done, isinstance is not needed anymore
+            if isinstance(status, int):
+                return status
+        except PreviousBuildDirError as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return PREVIOUS_BUILD_DIR_ERROR
+        except (InstallationError, UninstallationError, BadCommand) as exc:
+            logger.critical(str(exc))
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except CommandError as exc:
+            logger.critical('ERROR: %s', exc)
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except KeyboardInterrupt:
+            logger.critical('Operation cancelled by user')
+            logger.debug('Exception information:', exc_info=True)
+
+            return ERROR
+        except:
+            logger.critical('Exception:', exc_info=True)
+
+            return UNKNOWN_ERROR
+        finally:
+            # Check if we're using the latest version of pip available
+            if (not options.disable_pip_version_check and not
+                    getattr(options, "no_index", False)):
+                with self._build_session(
+                        options,
+                        retries=0,
+                        timeout=min(5, options.timeout)) as session:
+                    pip_version_check(session)
+
+        return SUCCESS
+
+
+class RequirementCommand(Command):
+
+    @staticmethod
+    def populate_requirement_set(requirement_set, args, options, finder,
+                                 session, name, wheel_cache):
+        """
+        Marshal cmd line args into a requirement set.
+        """
+        for filename in options.constraints:
+            for req in parse_requirements(
+                    filename,
+                    constraint=True, finder=finder, options=options,
+                    session=session, wheel_cache=wheel_cache):
+                requirement_set.add_requirement(req)
+
+        for req in args:
+            requirement_set.add_requirement(
+                InstallRequirement.from_line(
+                    req, None, isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        for req in options.editables:
+            requirement_set.add_requirement(
+                InstallRequirement.from_editable(
+                    req,
+                    default_vcs=options.default_vcs,
+                    isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache
+                )
+            )
+
+        found_req_in_file = False
+        for filename in options.requirements:
+            for req in parse_requirements(
+                    filename,
+                    finder=finder, options=options, session=session,
+                    wheel_cache=wheel_cache):
+                found_req_in_file = True
+                requirement_set.add_requirement(req)
+        # If --require-hashes was a line in a requirements file, tell
+        # RequirementSet about it:
+        requirement_set.require_hashes = options.require_hashes
+
+        if not (args or options.editables or found_req_in_file):
+            opts = {'name': name}
+            if options.find_links:
+                msg = ('You must give at least one requirement to '
+                       '%(name)s (maybe you meant "pip %(name)s '
+                       '%(links)s"?)' %
+                       dict(opts, links=' '.join(options.find_links)))
+            else:
+                msg = ('You must give at least one requirement '
+                       'to %(name)s (see "pip help %(name)s")' % opts)
+            logger.warning(msg)
+
+    def _build_package_finder(self, options, session,
+                              platform=None, python_versions=None,
+                              abi=None, implementation=None):
+        """
+        Create a package finder appropriate to this requirement command.
+        """
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        return PackageFinder(
+            find_links=options.find_links,
+            format_control=options.format_control,
+            index_urls=index_urls,
+            trusted_hosts=options.trusted_hosts,
+            allow_all_prereleases=options.pre,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+            platform=platform,
+            versions=python_versions,
+            abi=abi,
+            implementation=implementation,
+        )
diff --git a/venv1/lib/python3.5/site-packages/pip/baseparser.py b/venv1/lib/python3.5/site-packages/pip/baseparser.py
new file mode 100644
index 0000000..2dd4533
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/baseparser.py
@@ -0,0 +1,293 @@
+"""Base option parser setup"""
+from __future__ import absolute_import
+
+import sys
+import optparse
+import os
+import re
+import textwrap
+from distutils.util import strtobool
+
+from pip._vendor.six import string_types
+from pip._vendor.six.moves import configparser
+from pip.locations import (
+    legacy_config_file, config_basename, running_under_virtualenv,
+    site_config_files
+)
+from pip.utils import appdirs, get_terminal_size
+
+
+_environ_prefix_re = re.compile(r"^PIP_", re.I)
+
+
+class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
+    """A prettier/less verbose help formatter for optparse."""
+
+    def __init__(self, *args, **kwargs):
+        # help position must be aligned with __init__.parseopts.description
+        kwargs['max_help_position'] = 30
+        kwargs['indent_increment'] = 1
+        kwargs['width'] = get_terminal_size()[0] - 2
+        optparse.IndentedHelpFormatter.__init__(self, *args, **kwargs)
+
+    def format_option_strings(self, option):
+        return self._format_option_strings(option, ' <%s>', ', ')
+
+    def _format_option_strings(self, option, mvarfmt=' <%s>', optsep=', '):
+        """
+        Return a comma-separated list of option strings and metavars.
+
+        :param option:  tuple of (short opt, long opt), e.g: ('-f', '--format')
+        :param mvarfmt: metavar format string - evaluated as mvarfmt % metavar
+        :param optsep:  separator
+        """
+        opts = []
+
+        if option._short_opts:
+            opts.append(option._short_opts[0])
+        if option._long_opts:
+            opts.append(option._long_opts[0])
+        if len(opts) > 1:
+            opts.insert(1, optsep)
+
+        if option.takes_value():
+            metavar = option.metavar or option.dest.lower()
+            opts.append(mvarfmt % metavar.lower())
+
+        return ''.join(opts)
+
+    def format_heading(self, heading):
+        if heading == 'Options':
+            return ''
+        return heading + ':\n'
+
+    def format_usage(self, usage):
+        """
+        Ensure there is only one newline between usage and the first heading
+        if there is no description.
+        """
+        msg = '\nUsage: %s\n' % self.indent_lines(textwrap.dedent(usage), "  ")
+        return msg
+
+    def format_description(self, description):
+        # leave full control over description to us
+        if description:
+            if hasattr(self.parser, 'main'):
+                label = 'Commands'
+            else:
+                label = 'Description'
+            # some doc strings have initial newlines, some don't
+            description = description.lstrip('\n')
+            # some doc strings have final newlines and spaces, some don't
+            description = description.rstrip()
+            # dedent, then reindent
+            description = self.indent_lines(textwrap.dedent(description), "  ")
+            description = '%s:\n%s\n' % (label, description)
+            return description
+        else:
+            return ''
+
+    def format_epilog(self, epilog):
+        # leave full control over epilog to us
+        if epilog:
+            return epilog
+        else:
+            return ''
+
+    def indent_lines(self, text, indent):
+        new_lines = [indent + line for line in text.split('\n')]
+        return "\n".join(new_lines)
+
+
+class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
+    """Custom help formatter for use in ConfigOptionParser.
+
+    This is updates the defaults before expanding them, allowing
+    them to show up correctly in the help listing.
+    """
+
+    def expand_default(self, option):
+        if self.parser is not None:
+            self.parser._update_defaults(self.parser.defaults)
+        return optparse.IndentedHelpFormatter.expand_default(self, option)
+
+
+class CustomOptionParser(optparse.OptionParser):
+
+    def insert_option_group(self, idx, *args, **kwargs):
+        """Insert an OptionGroup at a given position."""
+        group = self.add_option_group(*args, **kwargs)
+
+        self.option_groups.pop()
+        self.option_groups.insert(idx, group)
+
+        return group
+
+    @property
+    def option_list_all(self):
+        """Get a list of all options, including those in option groups."""
+        res = self.option_list[:]
+        for i in self.option_groups:
+            res.extend(i.option_list)
+
+        return res
+
+
+class ConfigOptionParser(CustomOptionParser):
+    """Custom option parser which updates its defaults by checking the
+    configuration files and environmental variables"""
+
+    isolated = False
+
+    def __init__(self, *args, **kwargs):
+        self.config = configparser.RawConfigParser()
+        self.name = kwargs.pop('name')
+        self.isolated = kwargs.pop("isolated", False)
+        self.files = self.get_config_files()
+        if self.files:
+            self.config.read(self.files)
+        assert self.name
+        optparse.OptionParser.__init__(self, *args, **kwargs)
+
+    def get_config_files(self):
+        # the files returned by this method will be parsed in order with the
+        # first files listed being overridden by later files in standard
+        # ConfigParser fashion
+        config_file = os.environ.get('PIP_CONFIG_FILE', False)
+        if config_file == os.devnull:
+            return []
+
+        # at the base we have any site-wide configuration
+        files = list(site_config_files)
+
+        # per-user configuration next
+        if not self.isolated:
+            if config_file and os.path.exists(config_file):
+                files.append(config_file)
+            else:
+                # This is the legacy config file, we consider it to be a lower
+                # priority than the new file location.
+                files.append(legacy_config_file)
+
+                # This is the new config file, we consider it to be a higher
+                # priority than the legacy file.
+                files.append(
+                    os.path.join(
+                        appdirs.user_config_dir("pip"),
+                        config_basename,
+                    )
+                )
+
+        # finally virtualenv configuration first trumping others
+        if running_under_virtualenv():
+            venv_config_file = os.path.join(
+                sys.prefix,
+                config_basename,
+            )
+            if os.path.exists(venv_config_file):
+                files.append(venv_config_file)
+
+        return files
+
+    def check_default(self, option, key, val):
+        try:
+            return option.check_value(key, val)
+        except optparse.OptionValueError as exc:
+            print("An error occurred during configuration: %s" % exc)
+            sys.exit(3)
+
+    def _update_defaults(self, defaults):
+        """Updates the given defaults with values from the config files and
+        the environ. Does a little special handling for certain types of
+        options (lists)."""
+        # Then go and look for the other sources of configuration:
+        config = {}
+        # 1. config files
+        for section in ('global', self.name):
+            config.update(
+                self.normalize_keys(self.get_config_section(section))
+            )
+        # 2. environmental variables
+        if not self.isolated:
+            config.update(self.normalize_keys(self.get_environ_vars()))
+        # Accumulate complex default state.
+        self.values = optparse.Values(self.defaults)
+        late_eval = set()
+        # Then set the options with those values
+        for key, val in config.items():
+            # ignore empty values
+            if not val:
+                continue
+
+            option = self.get_option(key)
+            # Ignore options not present in this parser. E.g. non-globals put
+            # in [global] by users that want them to apply to all applicable
+            # commands.
+            if option is None:
+                continue
+
+            if option.action in ('store_true', 'store_false', 'count'):
+                val = strtobool(val)
+            elif option.action == 'append':
+                val = val.split()
+                val = [self.check_default(option, key, v) for v in val]
+            elif option.action == 'callback':
+                late_eval.add(option.dest)
+                opt_str = option.get_opt_string()
+                val = option.convert_value(opt_str, val)
+                # From take_action
+                args = option.callback_args or ()
+                kwargs = option.callback_kwargs or {}
+                option.callback(option, opt_str, val, self, *args, **kwargs)
+            else:
+                val = self.check_default(option, key, val)
+
+            defaults[option.dest] = val
+
+        for key in late_eval:
+            defaults[key] = getattr(self.values, key)
+        self.values = None
+        return defaults
+
+    def normalize_keys(self, items):
+        """Return a config dictionary with normalized keys regardless of
+        whether the keys were specified in environment variables or in config
+        files"""
+        normalized = {}
+        for key, val in items:
+            key = key.replace('_', '-')
+            if not key.startswith('--'):
+                key = '--%s' % key  # only prefer long opts
+            normalized[key] = val
+        return normalized
+
+    def get_config_section(self, name):
+        """Get a section of a configuration"""
+        if self.config.has_section(name):
+            return self.config.items(name)
+        return []
+
+    def get_environ_vars(self):
+        """Returns a generator with all environmental vars with prefix PIP_"""
+        for key, val in os.environ.items():
+            if _environ_prefix_re.search(key):
+                yield (_environ_prefix_re.sub("", key).lower(), val)
+
+    def get_default_values(self):
+        """Overriding to make updating the defaults after instantiation of
+        the option parser possible, _update_defaults() does the dirty work."""
+        if not self.process_default_values:
+            # Old, pre-Optik 1.5 behaviour.
+            return optparse.Values(self.defaults)
+
+        defaults = self._update_defaults(self.defaults.copy())  # ours
+        for option in self._get_all_options():
+            default = defaults.get(option.dest)
+            if isinstance(default, string_types):
+                opt_str = option.get_opt_string()
+                defaults[option.dest] = option.check_value(opt_str, default)
+        return optparse.Values(defaults)
+
+    def error(self, msg):
+        self.print_usage(sys.stderr)
+        self.exit(2, "%s\n" % msg)
diff --git a/venv1/lib/python3.5/site-packages/pip/cmdoptions.py b/venv1/lib/python3.5/site-packages/pip/cmdoptions.py
new file mode 100644
index 0000000..f71488c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/cmdoptions.py
@@ -0,0 +1,633 @@
+"""
+shared options and groups
+
+The principle here is to define options once, but *not* instantiate them
+globally. One reason being that options with action='append' can carry state
+between parses. pip parses general options twice internally, and shouldn't
+pass on state. To be consistent, all options will follow this design.
+
+"""
+from __future__ import absolute_import
+
+from functools import partial
+from optparse import OptionGroup, SUPPRESS_HELP, Option
+import warnings
+
+from pip.index import (
+    FormatControl, fmt_ctl_handle_mutual_exclude, fmt_ctl_no_binary,
+    fmt_ctl_no_use_wheel)
+from pip.models import PyPI
+from pip.locations import USER_CACHE_DIR, src_prefix
+from pip.utils.hashes import STRONG_HASHES
+
+
+def make_option_group(group, parser):
+    """
+    Return an OptionGroup object
+    group  -- assumed to be dict with 'name' and 'options' keys
+    parser -- an optparse Parser
+    """
+    option_group = OptionGroup(parser, group['name'])
+    for option in group['options']:
+        option_group.add_option(option())
+    return option_group
+
+
+def resolve_wheel_no_use_binary(options):
+    if not options.use_wheel:
+        control = options.format_control
+        fmt_ctl_no_use_wheel(control)
+
+
+def check_install_build_global(options, check_options=None):
+    """Disable wheels if per-setup.py call options are set.
+
+    :param options: The OptionParser options to update.
+    :param check_options: The options to check, if not supplied defaults to
+        options.
+    """
+    if check_options is None:
+        check_options = options
+
+    def getname(n):
+        return getattr(check_options, n, None)
+    names = ["build_options", "global_options", "install_options"]
+    if any(map(getname, names)):
+        control = options.format_control
+        fmt_ctl_no_binary(control)
+        warnings.warn(
+            'Disabling all use of wheels due to the use of --build-options '
+            '/ --global-options / --install-options.', stacklevel=2)
+
+
+###########
+# options #
+###########
+
+help_ = partial(
+    Option,
+    '-h', '--help',
+    dest='help',
+    action='help',
+    help='Show help.')
+
+isolated_mode = partial(
+    Option,
+    "--isolated",
+    dest="isolated_mode",
+    action="store_true",
+    default=False,
+    help=(
+        "Run pip in an isolated mode, ignoring environment variables and user "
+        "configuration."
+    ),
+)
+
+require_virtualenv = partial(
+    Option,
+    # Run only if inside a virtualenv, bail if not.
+    '--require-virtualenv', '--require-venv',
+    dest='require_venv',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP)
+
+verbose = partial(
+    Option,
+    '-v', '--verbose',
+    dest='verbose',
+    action='count',
+    default=0,
+    help='Give more output. Option is additive, and can be used up to 3 times.'
+)
+
+version = partial(
+    Option,
+    '-V', '--version',
+    dest='version',
+    action='store_true',
+    help='Show version and exit.')
+
+quiet = partial(
+    Option,
+    '-q', '--quiet',
+    dest='quiet',
+    action='count',
+    default=0,
+    help=('Give less output. Option is additive, and can be used up to 3'
+          ' times (corresponding to WARNING, ERROR, and CRITICAL logging'
+          ' levels).')
+)
+
+log = partial(
+    Option,
+    "--log", "--log-file", "--local-log",
+    dest="log",
+    metavar="path",
+    help="Path to a verbose appending log."
+)
+
+no_input = partial(
+    Option,
+    # Don't ask for input
+    '--no-input',
+    dest='no_input',
+    action='store_true',
+    default=False,
+    help=SUPPRESS_HELP)
+
+proxy = partial(
+    Option,
+    '--proxy',
+    dest='proxy',
+    type='str',
+    default='',
+    help="Specify a proxy in the form [user:passwd@]proxy.server:port.")
+
+retries = partial(
+    Option,
+    '--retries',
+    dest='retries',
+    type='int',
+    default=5,
+    help="Maximum number of retries each connection should attempt "
+         "(default %default times).")
+
+timeout = partial(
+    Option,
+    '--timeout', '--default-timeout',
+    metavar='sec',
+    dest='timeout',
+    type='float',
+    default=15,
+    help='Set the socket timeout (default %default seconds).')
+
+default_vcs = partial(
+    Option,
+    # The default version control system for editables, e.g. 'svn'
+    '--default-vcs',
+    dest='default_vcs',
+    type='str',
+    default='',
+    help=SUPPRESS_HELP)
+
+skip_requirements_regex = partial(
+    Option,
+    # A regex to be used to skip requirements
+    '--skip-requirements-regex',
+    dest='skip_requirements_regex',
+    type='str',
+    default='',
+    help=SUPPRESS_HELP)
+
+
+def exists_action():
+    return Option(
+        # Option when path already exist
+        '--exists-action',
+        dest='exists_action',
+        type='choice',
+        choices=['s', 'i', 'w', 'b', 'a'],
+        default=[],
+        action='append',
+        metavar='action',
+        help="Default action when a path already exists: "
+        "(s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.")
+
+
+cert = partial(
+    Option,
+    '--cert',
+    dest='cert',
+    type='str',
+    metavar='path',
+    help="Path to alternate CA bundle.")
+
+client_cert = partial(
+    Option,
+    '--client-cert',
+    dest='client_cert',
+    type='str',
+    default=None,
+    metavar='path',
+    help="Path to SSL client certificate, a single file containing the "
+         "private key and the certificate in PEM format.")
+
+index_url = partial(
+    Option,
+    '-i', '--index-url', '--pypi-url',
+    dest='index_url',
+    metavar='URL',
+    default=PyPI.simple_url,
+    help="Base URL of Python Package Index (default %default). "
+         "This should point to a repository compliant with PEP 503 "
+         "(the simple repository API) or a local directory laid out "
+         "in the same format.")
+
+
+def extra_index_url():
+    return Option(
+        '--extra-index-url',
+        dest='extra_index_urls',
+        metavar='URL',
+        action='append',
+        default=[],
+        help="Extra URLs of package indexes to use in addition to "
+             "--index-url. Should follow the same rules as "
+             "--index-url."
+    )
+
+
+no_index = partial(
+    Option,
+    '--no-index',
+    dest='no_index',
+    action='store_true',
+    default=False,
+    help='Ignore package index (only looking at --find-links URLs instead).')
+
+
+def find_links():
+    return Option(
+        '-f', '--find-links',
+        dest='find_links',
+        action='append',
+        default=[],
+        metavar='url',
+        help="If a url or path to an html file, then parse for links to "
+             "archives. If a local path or file:// url that's a directory, "
+             "then look for archives in the directory listing.")
+
+
+def allow_external():
+    return Option(
+        "--allow-external",
+        dest="allow_external",
+        action="append",
+        default=[],
+        metavar="PACKAGE",
+        help=SUPPRESS_HELP,
+    )
+
+
+allow_all_external = partial(
+    Option,
+    "--allow-all-external",
+    dest="allow_all_external",
+    action="store_true",
+    default=False,
+    help=SUPPRESS_HELP,
+)
+
+
+def trusted_host():
+    return Option(
+        "--trusted-host",
+        dest="trusted_hosts",
+        action="append",
+        metavar="HOSTNAME",
+        default=[],
+        help="Mark this host as trusted, even though it does not have valid "
+             "or any HTTPS.",
+    )
+
+
+# Remove after 7.0
+no_allow_external = partial(
+    Option,
+    "--no-allow-external",
+    dest="allow_all_external",
+    action="store_false",
+    default=False,
+    help=SUPPRESS_HELP,
+)
+
+
+# Remove --allow-insecure after 7.0
+def allow_unsafe():
+    return Option(
+        "--allow-unverified", "--allow-insecure",
+        dest="allow_unverified",
+        action="append",
+        default=[],
+        metavar="PACKAGE",
+        help=SUPPRESS_HELP,
+    )
+
+# Remove after 7.0
+no_allow_unsafe = partial(
+    Option,
+    "--no-allow-insecure",
+    dest="allow_all_insecure",
+    action="store_false",
+    default=False,
+    help=SUPPRESS_HELP
+)
+
+# Remove after 1.5
+process_dependency_links = partial(
+    Option,
+    "--process-dependency-links",
+    dest="process_dependency_links",
+    action="store_true",
+    default=False,
+    help="Enable the processing of dependency links.",
+)
+
+
+def constraints():
+    return Option(
+        '-c', '--constraint',
+        dest='constraints',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Constrain versions using the given constraints file. '
+        'This option can be used multiple times.')
+
+
+def requirements():
+    return Option(
+        '-r', '--requirement',
+        dest='requirements',
+        action='append',
+        default=[],
+        metavar='file',
+        help='Install from the given requirements file. '
+        'This option can be used multiple times.')
+
+
+def editable():
+    return Option(
+        '-e', '--editable',
+        dest='editables',
+        action='append',
+        default=[],
+        metavar='path/url',
+        help=('Install a project in editable mode (i.e. setuptools '
+              '"develop mode") from a local project path or a VCS url.'),
+    )
+
+src = partial(
+    Option,
+    '--src', '--source', '--source-dir', '--source-directory',
+    dest='src_dir',
+    metavar='dir',
+    default=src_prefix,
+    help='Directory to check out editable projects into. '
+    'The default in a virtualenv is "<venv path>/src". '
+    'The default for global installs is "<current dir>/src".'
+)
+
+# XXX: deprecated, remove in 9.0
+use_wheel = partial(
+    Option,
+    '--use-wheel',
+    dest='use_wheel',
+    action='store_true',
+    default=True,
+    help=SUPPRESS_HELP,
+)
+
+# XXX: deprecated, remove in 9.0
+no_use_wheel = partial(
+    Option,
+    '--no-use-wheel',
+    dest='use_wheel',
+    action='store_false',
+    default=True,
+    help=('Do not Find and prefer wheel archives when searching indexes and '
+          'find-links locations. DEPRECATED in favour of --no-binary.'),
+)
+
+
+def _get_format_control(values, option):
+    """Get a format_control object."""
+    return getattr(values, option.dest)
+
+
+def _handle_no_binary(option, opt_str, value, parser):
+    existing = getattr(parser.values, option.dest)
+    fmt_ctl_handle_mutual_exclude(
+        value, existing.no_binary, existing.only_binary)
+
+
+def _handle_only_binary(option, opt_str, value, parser):
+    existing = getattr(parser.values, option.dest)
+    fmt_ctl_handle_mutual_exclude(
+        value, existing.only_binary, existing.no_binary)
+
+
+def no_binary():
+    return Option(
+        "--no-binary", dest="format_control", action="callback",
+        callback=_handle_no_binary, type="str",
+        default=FormatControl(set(), set()),
+        help="Do not use binary packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all binary packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Note that some "
+             "packages are tricky to compile and may fail to install when "
+             "this option is used on them.")
+
+
+def only_binary():
+    return Option(
+        "--only-binary", dest="format_control", action="callback",
+        callback=_handle_only_binary, type="str",
+        default=FormatControl(set(), set()),
+        help="Do not use source packages. Can be supplied multiple times, and "
+             "each time adds to the existing value. Accepts either :all: to "
+             "disable all source packages, :none: to empty the set, or one or "
+             "more package names with commas between them. Packages without "
+             "binary distributions will fail to install when this option is "
+             "used on them.")
+
+
+cache_dir = partial(
+    Option,
+    "--cache-dir",
+    dest="cache_dir",
+    default=USER_CACHE_DIR,
+    metavar="dir",
+    help="Store the cache data in <dir>."
+)
+
+no_cache = partial(
+    Option,
+    "--no-cache-dir",
+    dest="cache_dir",
+    action="store_false",
+    help="Disable the cache.",
+)
+
+no_deps = partial(
+    Option,
+    '--no-deps', '--no-dependencies',
+    dest='ignore_dependencies',
+    action='store_true',
+    default=False,
+    help="Don't install package dependencies.")
+
+build_dir = partial(
+    Option,
+    '-b', '--build', '--build-dir', '--build-directory',
+    dest='build_dir',
+    metavar='dir',
+    help='Directory to unpack packages into and build in.'
+)
+
+ignore_requires_python = partial(
+    Option,
+    '--ignore-requires-python',
+    dest='ignore_requires_python',
+    action='store_true',
+    help='Ignore the Requires-Python information.')
+
+install_options = partial(
+    Option,
+    '--install-option',
+    dest='install_options',
+    action='append',
+    metavar='options',
+    help="Extra arguments to be supplied to the setup.py install "
+         "command (use like --install-option=\"--install-scripts=/usr/local/"
+         "bin\"). Use multiple --install-option options to pass multiple "
+         "options to setup.py install. If you are using an option with a "
+         "directory path, be sure to use absolute path.")
+
+global_options = partial(
+    Option,
+    '--global-option',
+    dest='global_options',
+    action='append',
+    metavar='options',
+    help="Extra global options to be supplied to the setup.py "
+         "call before the install command.")
+
+no_clean = partial(
+    Option,
+    '--no-clean',
+    action='store_true',
+    default=False,
+    help="Don't clean up build directories.")
+
+pre = partial(
+    Option,
+    '--pre',
+    action='store_true',
+    default=False,
+    help="Include pre-release and development versions. By default, "
+         "pip only finds stable versions.")
+
+disable_pip_version_check = partial(
+    Option,
+    "--disable-pip-version-check",
+    dest="disable_pip_version_check",
+    action="store_true",
+    default=False,
+    help="Don't periodically check PyPI to determine whether a new version "
+         "of pip is available for download. Implied with --no-index.")
+
+# Deprecated, Remove later
+always_unzip = partial(
+    Option,
+    '-Z', '--always-unzip',
+    dest='always_unzip',
+    action='store_true',
+    help=SUPPRESS_HELP,
+)
+
+
+def _merge_hash(option, opt_str, value, parser):
+    """Given a value spelled "algo:digest", append the digest to a list
+    pointed to in a dict by the algo name."""
+    if not parser.values.hashes:
+        parser.values.hashes = {}
+    try:
+        algo, digest = value.split(':', 1)
+    except ValueError:
+        parser.error('Arguments to %s must be a hash name '
+                     'followed by a value, like --hash=sha256:abcde...' %
+                     opt_str)
+    if algo not in STRONG_HASHES:
+        parser.error('Allowed hash algorithms for %s are %s.' %
+                     (opt_str, ', '.join(STRONG_HASHES)))
+    parser.values.hashes.setdefault(algo, []).append(digest)
+
+
+hash = partial(
+    Option,
+    '--hash',
+    # Hash values eventually end up in InstallRequirement.hashes due to
+    # __dict__ copying in process_line().
+    dest='hashes',
+    action='callback',
+    callback=_merge_hash,
+    type='string',
+    help="Verify that the package's archive matches this "
+         'hash before installing. Example: --hash=sha256:abcdef...')
+
+
+require_hashes = partial(
+    Option,
+    '--require-hashes',
+    dest='require_hashes',
+    action='store_true',
+    default=False,
+    help='Require a hash to check each requirement against, for '
+         'repeatable installs. This option is implied when any package in a '
+         'requirements file has a --hash option.')
+
+
+##########
+# groups #
+##########
+
+general_group = {
+    'name': 'General Options',
+    'options': [
+        help_,
+        isolated_mode,
+        require_virtualenv,
+        verbose,
+        version,
+        quiet,
+        log,
+        no_input,
+        proxy,
+        retries,
+        timeout,
+        default_vcs,
+        skip_requirements_regex,
+        exists_action,
+        trusted_host,
+        cert,
+        client_cert,
+        cache_dir,
+        no_cache,
+        disable_pip_version_check,
+    ]
+}
+
+non_deprecated_index_group = {
+    'name': 'Package Index Options',
+    'options': [
+        index_url,
+        extra_index_url,
+        no_index,
+        find_links,
+        process_dependency_links,
+    ]
+}
+
+index_group = {
+    'name': 'Package Index Options (including deprecated options)',
+    'options': non_deprecated_index_group['options'] + [
+        allow_external,
+        allow_all_external,
+        no_allow_external,
+        allow_unsafe,
+        no_allow_unsafe,
+    ]
+}
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/__init__.py b/venv1/lib/python3.5/site-packages/pip/commands/__init__.py
new file mode 100644
index 0000000..62c64eb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/__init__.py
@@ -0,0 +1,86 @@
+"""
+Package containing all pip commands
+"""
+from __future__ import absolute_import
+
+from pip.commands.completion import CompletionCommand
+from pip.commands.download import DownloadCommand
+from pip.commands.freeze import FreezeCommand
+from pip.commands.hash import HashCommand
+from pip.commands.help import HelpCommand
+from pip.commands.list import ListCommand
+from pip.commands.check import CheckCommand
+from pip.commands.search import SearchCommand
+from pip.commands.show import ShowCommand
+from pip.commands.install import InstallCommand
+from pip.commands.uninstall import UninstallCommand
+from pip.commands.wheel import WheelCommand
+
+
+commands_dict = {
+    CompletionCommand.name: CompletionCommand,
+    FreezeCommand.name: FreezeCommand,
+    HashCommand.name: HashCommand,
+    HelpCommand.name: HelpCommand,
+    SearchCommand.name: SearchCommand,
+    ShowCommand.name: ShowCommand,
+    InstallCommand.name: InstallCommand,
+    UninstallCommand.name: UninstallCommand,
+    DownloadCommand.name: DownloadCommand,
+    ListCommand.name: ListCommand,
+    CheckCommand.name: CheckCommand,
+    WheelCommand.name: WheelCommand,
+}
+
+
+commands_order = [
+    InstallCommand,
+    DownloadCommand,
+    UninstallCommand,
+    FreezeCommand,
+    ListCommand,
+    ShowCommand,
+    CheckCommand,
+    SearchCommand,
+    WheelCommand,
+    HashCommand,
+    CompletionCommand,
+    HelpCommand,
+]
+
+
+def get_summaries(ordered=True):
+    """Yields sorted (command name, command summary) tuples."""
+
+    if ordered:
+        cmditems = _sort_commands(commands_dict, commands_order)
+    else:
+        cmditems = commands_dict.items()
+
+    for name, command_class in cmditems:
+        yield (name, command_class.summary)
+
+
+def get_similar_commands(name):
+    """Command name auto-correct."""
+    from difflib import get_close_matches
+
+    name = name.lower()
+
+    close_commands = get_close_matches(name, commands_dict.keys())
+
+    if close_commands:
+        return close_commands[0]
+    else:
+        return False
+
+
+def _sort_commands(cmddict, order):
+    def keyfn(key):
+        try:
+            return order.index(key[1])
+        except ValueError:
+            # unordered items should come last
+            return 0xff
+
+    return sorted(cmddict.items(), key=keyfn)
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diff --git a/venv1/lib/python3.5/site-packages/pip/commands/check.py b/venv1/lib/python3.5/site-packages/pip/commands/check.py
new file mode 100644
index 0000000..70458ad
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/check.py
@@ -0,0 +1,39 @@
+import logging
+
+from pip.basecommand import Command
+from pip.operations.check import check_requirements
+from pip.utils import get_installed_distributions
+
+
+logger = logging.getLogger(__name__)
+
+
+class CheckCommand(Command):
+    """Verify installed packages have compatible dependencies."""
+    name = 'check'
+    usage = """
+      %prog [options]"""
+    summary = 'Verify installed packages have compatible dependencies.'
+
+    def run(self, options, args):
+        dists = get_installed_distributions(local_only=False, skip=())
+        missing_reqs_dict, incompatible_reqs_dict = check_requirements(dists)
+
+        for dist in dists:
+            key = '%s==%s' % (dist.project_name, dist.version)
+
+            for requirement in missing_reqs_dict.get(key, []):
+                logger.info(
+                    "%s %s requires %s, which is not installed.",
+                    dist.project_name, dist.version, requirement.project_name)
+
+            for requirement, actual in incompatible_reqs_dict.get(key, []):
+                logger.info(
+                    "%s %s has requirement %s, but you have %s %s.",
+                    dist.project_name, dist.version, requirement,
+                    actual.project_name, actual.version)
+
+        if missing_reqs_dict or incompatible_reqs_dict:
+            return 1
+        else:
+            logger.info("No broken requirements found.")
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/completion.py b/venv1/lib/python3.5/site-packages/pip/commands/completion.py
new file mode 100644
index 0000000..66e41a6
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/completion.py
@@ -0,0 +1,81 @@
+from __future__ import absolute_import
+
+import sys
+from pip.basecommand import Command
+
+BASE_COMPLETION = """
+# pip %(shell)s completion start%(script)s# pip %(shell)s completion end
+"""
+
+COMPLETION_SCRIPTS = {
+    'bash': """
+_pip_completion()
+{
+    COMPREPLY=( $( COMP_WORDS="${COMP_WORDS[*]}" \\
+                   COMP_CWORD=$COMP_CWORD \\
+                   PIP_AUTO_COMPLETE=1 $1 ) )
+}
+complete -o default -F _pip_completion pip
+""", 'zsh': """
+function _pip_completion {
+  local words cword
+  read -Ac words
+  read -cn cword
+  reply=( $( COMP_WORDS="$words[*]" \\
+             COMP_CWORD=$(( cword-1 )) \\
+             PIP_AUTO_COMPLETE=1 $words[1] ) )
+}
+compctl -K _pip_completion pip
+""", 'fish': """
+function __fish_complete_pip
+    set -lx COMP_WORDS (commandline -o) ""
+    set -lx COMP_CWORD (math (contains -i -- (commandline -t) $COMP_WORDS)-1)
+    set -lx PIP_AUTO_COMPLETE 1
+    string split \  -- (eval $COMP_WORDS[1])
+end
+complete -fa "(__fish_complete_pip)" -c pip
+"""}
+
+
+class CompletionCommand(Command):
+    """A helper command to be used for command completion."""
+    name = 'completion'
+    summary = 'A helper command used for command completion.'
+
+    def __init__(self, *args, **kw):
+        super(CompletionCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '--bash', '-b',
+            action='store_const',
+            const='bash',
+            dest='shell',
+            help='Emit completion code for bash')
+        cmd_opts.add_option(
+            '--zsh', '-z',
+            action='store_const',
+            const='zsh',
+            dest='shell',
+            help='Emit completion code for zsh')
+        cmd_opts.add_option(
+            '--fish', '-f',
+            action='store_const',
+            const='fish',
+            dest='shell',
+            help='Emit completion code for fish')
+
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        """Prints the completion code of the given shell"""
+        shells = COMPLETION_SCRIPTS.keys()
+        shell_options = ['--' + shell for shell in sorted(shells)]
+        if options.shell in shells:
+            script = COMPLETION_SCRIPTS.get(options.shell, '')
+            print(BASE_COMPLETION % {'script': script, 'shell': options.shell})
+        else:
+            sys.stderr.write(
+                'ERROR: You must pass %s\n' % ' or '.join(shell_options)
+            )
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/download.py b/venv1/lib/python3.5/site-packages/pip/commands/download.py
new file mode 100644
index 0000000..4bc0640
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/download.py
@@ -0,0 +1,212 @@
+from __future__ import absolute_import
+
+import logging
+import os
+
+from pip.exceptions import CommandError
+from pip.index import FormatControl
+from pip.req import RequirementSet
+from pip.basecommand import RequirementCommand
+from pip import cmdoptions
+from pip.utils import ensure_dir, normalize_path
+from pip.utils.build import BuildDirectory
+from pip.utils.filesystem import check_path_owner
+
+
+logger = logging.getLogger(__name__)
+
+
+class DownloadCommand(RequirementCommand):
+    """
+    Download packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports downloading from "requirements files", which provide
+    an easy way to specify a whole environment to be downloaded.
+    """
+    name = 'download'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Download packages.'
+
+    def __init__(self, *args, **kw):
+        super(DownloadCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.build_dir())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.global_options())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.pre())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        cmd_opts.add_option(
+            '-d', '--dest', '--destination-dir', '--destination-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Download packages into <dir>."),
+        )
+
+        cmd_opts.add_option(
+            '--platform',
+            dest='platform',
+            metavar='platform',
+            default=None,
+            help=("Only download wheels compatible with <platform>. "
+                  "Defaults to the platform of the running system."),
+        )
+
+        cmd_opts.add_option(
+            '--python-version',
+            dest='python_version',
+            metavar='python_version',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "interpreter version <version>. If not specified, then the "
+                  "current system interpreter minor version is used. A major "
+                  "version (e.g. '2') can be specified to match all "
+                  "minor revs of that major version.  A minor version "
+                  "(e.g. '34') can also be specified."),
+        )
+
+        cmd_opts.add_option(
+            '--implementation',
+            dest='implementation',
+            metavar='implementation',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "implementation <implementation>, e.g. 'pp', 'jy', 'cp', "
+                  " or 'ip'. If not specified, then the current "
+                  "interpreter implementation is used.  Use 'py' to force "
+                  "implementation-agnostic wheels."),
+        )
+
+        cmd_opts.add_option(
+            '--abi',
+            dest='abi',
+            metavar='abi',
+            default=None,
+            help=("Only download wheels compatible with Python "
+                  "abi <abi>, e.g. 'pypy_41'.  If not specified, then the "
+                  "current interpreter abi tag is used.  Generally "
+                  "you will need to specify --implementation, "
+                  "--platform, and --python-version when using "
+                  "this option."),
+        )
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.non_deprecated_index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        options.ignore_installed = True
+
+        if options.python_version:
+            python_versions = [options.python_version]
+        else:
+            python_versions = None
+
+        dist_restriction_set = any([
+            options.python_version,
+            options.platform,
+            options.abi,
+            options.implementation,
+        ])
+        binary_only = FormatControl(set(), set([':all:']))
+        if dist_restriction_set and options.format_control != binary_only:
+            raise CommandError(
+                "--only-binary=:all: must be set and --no-binary must not "
+                "be set (or must be set to :none:) when restricting platform "
+                "and interpreter constraints using --python-version, "
+                "--platform, --abi, or --implementation."
+            )
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        options.download_dir = normalize_path(options.download_dir)
+
+        ensure_dir(options.download_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(
+                options=options,
+                session=session,
+                platform=options.platform,
+                python_versions=python_versions,
+                abi=options.abi,
+                implementation=options.implementation,
+            )
+            build_delete = (not (options.no_clean or options.build_dir))
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    ignore_installed=True,
+                    ignore_dependencies=options.ignore_dependencies,
+                    session=session,
+                    isolated=options.isolated_mode,
+                    require_hashes=options.require_hashes
+                )
+                self.populate_requirement_set(
+                    requirement_set,
+                    args,
+                    options,
+                    finder,
+                    session,
+                    self.name,
+                    None
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                requirement_set.prepare_files(finder)
+
+                downloaded = ' '.join([
+                    req.name for req in requirement_set.successfully_downloaded
+                ])
+                if downloaded:
+                    logger.info(
+                        'Successfully downloaded %s', downloaded
+                    )
+
+                # Clean up
+                if not options.no_clean:
+                    requirement_set.cleanup_files()
+
+        return requirement_set
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/freeze.py b/venv1/lib/python3.5/site-packages/pip/commands/freeze.py
new file mode 100644
index 0000000..c198796
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/freeze.py
@@ -0,0 +1,87 @@
+from __future__ import absolute_import
+
+import sys
+
+import pip
+from pip.compat import stdlib_pkgs
+from pip.basecommand import Command
+from pip.operations.freeze import freeze
+from pip.wheel import WheelCache
+
+
+DEV_PKGS = ('pip', 'setuptools', 'distribute', 'wheel')
+
+
+class FreezeCommand(Command):
+    """
+    Output installed packages in requirements format.
+
+    packages are listed in a case-insensitive sorted order.
+    """
+    name = 'freeze'
+    usage = """
+      %prog [options]"""
+    summary = 'Output installed packages in requirements format.'
+    log_streams = ("ext://sys.stderr", "ext://sys.stderr")
+
+    def __init__(self, *args, **kw):
+        super(FreezeCommand, self).__init__(*args, **kw)
+
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help="Use the order in the given requirements file and its "
+                 "comments when generating output. This option can be "
+                 "used multiple times.")
+        self.cmd_opts.add_option(
+            '-f', '--find-links',
+            dest='find_links',
+            action='append',
+            default=[],
+            metavar='URL',
+            help='URL for finding packages, which will be added to the '
+                 'output.')
+        self.cmd_opts.add_option(
+            '-l', '--local',
+            dest='local',
+            action='store_true',
+            default=False,
+            help='If in a virtualenv that has global access, do not output '
+                 'globally-installed packages.')
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+        self.cmd_opts.add_option(
+            '--all',
+            dest='freeze_all',
+            action='store_true',
+            help='Do not skip these packages in the output:'
+                 ' %s' % ', '.join(DEV_PKGS))
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        format_control = pip.index.FormatControl(set(), set())
+        wheel_cache = WheelCache(options.cache_dir, format_control)
+        skip = set(stdlib_pkgs)
+        if not options.freeze_all:
+            skip.update(DEV_PKGS)
+
+        freeze_kwargs = dict(
+            requirement=options.requirements,
+            find_links=options.find_links,
+            local_only=options.local,
+            user_only=options.user,
+            skip_regex=options.skip_requirements_regex,
+            isolated=options.isolated_mode,
+            wheel_cache=wheel_cache,
+            skip=skip)
+
+        for line in freeze(**freeze_kwargs):
+            sys.stdout.write(line + '\n')
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/hash.py b/venv1/lib/python3.5/site-packages/pip/commands/hash.py
new file mode 100644
index 0000000..27cca0b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/hash.py
@@ -0,0 +1,57 @@
+from __future__ import absolute_import
+
+import hashlib
+import logging
+import sys
+
+from pip.basecommand import Command
+from pip.status_codes import ERROR
+from pip.utils import read_chunks
+from pip.utils.hashes import FAVORITE_HASH, STRONG_HASHES
+
+
+logger = logging.getLogger(__name__)
+
+
+class HashCommand(Command):
+    """
+    Compute a hash of a local package archive.
+
+    These can be used with --hash in a requirements file to do repeatable
+    installs.
+
+    """
+    name = 'hash'
+    usage = '%prog [options] <file> ...'
+    summary = 'Compute hashes of package archives.'
+
+    def __init__(self, *args, **kw):
+        super(HashCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-a', '--algorithm',
+            dest='algorithm',
+            choices=STRONG_HASHES,
+            action='store',
+            default=FAVORITE_HASH,
+            help='The hash algorithm to use: one of %s' %
+                 ', '.join(STRONG_HASHES))
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            self.parser.print_usage(sys.stderr)
+            return ERROR
+
+        algorithm = options.algorithm
+        for path in args:
+            logger.info('%s:\n--hash=%s:%s',
+                        path, algorithm, _hash_of_file(path, algorithm))
+
+
+def _hash_of_file(path, algorithm):
+    """Return the hash digest of a file."""
+    with open(path, 'rb') as archive:
+        hash = hashlib.new(algorithm)
+        for chunk in read_chunks(archive):
+            hash.update(chunk)
+    return hash.hexdigest()
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/help.py b/venv1/lib/python3.5/site-packages/pip/commands/help.py
new file mode 100644
index 0000000..11722f1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/help.py
@@ -0,0 +1,35 @@
+from __future__ import absolute_import
+
+from pip.basecommand import Command, SUCCESS
+from pip.exceptions import CommandError
+
+
+class HelpCommand(Command):
+    """Show help for commands"""
+    name = 'help'
+    usage = """
+      %prog <command>"""
+    summary = 'Show help for commands.'
+
+    def run(self, options, args):
+        from pip.commands import commands_dict, get_similar_commands
+
+        try:
+            # 'pip help' with no args is handled by pip.__init__.parseopt()
+            cmd_name = args[0]  # the command we need help for
+        except IndexError:
+            return SUCCESS
+
+        if cmd_name not in commands_dict:
+            guess = get_similar_commands(cmd_name)
+
+            msg = ['unknown command "%s"' % cmd_name]
+            if guess:
+                msg.append('maybe you meant "%s"' % guess)
+
+            raise CommandError(' - '.join(msg))
+
+        command = commands_dict[cmd_name]()
+        command.parser.print_help()
+
+        return SUCCESS
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/install.py b/venv1/lib/python3.5/site-packages/pip/commands/install.py
new file mode 100644
index 0000000..227c526
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/install.py
@@ -0,0 +1,437 @@
+from __future__ import absolute_import
+
+import logging
+import operator
+import os
+import tempfile
+import shutil
+import warnings
+try:
+    import wheel
+except ImportError:
+    wheel = None
+
+from pip.req import RequirementSet
+from pip.basecommand import RequirementCommand
+from pip.locations import virtualenv_no_global, distutils_scheme
+from pip.exceptions import (
+    InstallationError, CommandError, PreviousBuildDirError,
+)
+from pip import cmdoptions
+from pip.utils import ensure_dir, get_installed_version
+from pip.utils.build import BuildDirectory
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.filesystem import check_path_owner
+from pip.wheel import WheelCache, WheelBuilder
+
+
+logger = logging.getLogger(__name__)
+
+
+class InstallCommand(RequirementCommand):
+    """
+    Install packages from:
+
+    - PyPI (and other indexes) using requirement specifiers.
+    - VCS project urls.
+    - Local project directories.
+    - Local or remote source archives.
+
+    pip also supports installing from "requirements files", which provide
+    an easy way to specify a whole environment to be installed.
+    """
+    name = 'install'
+
+    usage = """
+      %prog [options] <requirement specifier> [package-index-options] ...
+      %prog [options] -r <requirements file> [package-index-options] ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Install packages.'
+
+    def __init__(self, *args, **kw):
+        super(InstallCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.build_dir())
+
+        cmd_opts.add_option(
+            '-t', '--target',
+            dest='target_dir',
+            metavar='dir',
+            default=None,
+            help='Install packages into <dir>. '
+                 'By default this will not replace existing files/folders in '
+                 '<dir>. Use --upgrade to replace existing packages in <dir> '
+                 'with new versions.'
+        )
+
+        cmd_opts.add_option(
+            '-d', '--download', '--download-dir', '--download-directory',
+            dest='download_dir',
+            metavar='dir',
+            default=None,
+            help=("Download packages into <dir> instead of installing them, "
+                  "regardless of what's already installed."),
+        )
+
+        cmd_opts.add_option(cmdoptions.src())
+
+        cmd_opts.add_option(
+            '-U', '--upgrade',
+            dest='upgrade',
+            action='store_true',
+            help='Upgrade all specified packages to the newest available '
+                 'version. The handling of dependencies depends on the '
+                 'upgrade-strategy used.'
+        )
+
+        cmd_opts.add_option(
+            '--upgrade-strategy',
+            dest='upgrade_strategy',
+            default='eager',
+            choices=['only-if-needed', 'eager'],
+            help='Determines how dependency upgrading should be handled. '
+                 '"eager" - dependencies are upgraded regardless of '
+                 'whether the currently installed version satisfies the '
+                 'requirements of the upgraded package(s). '
+                 '"only-if-needed" -  are upgraded only when they do not '
+                 'satisfy the requirements of the upgraded package(s).'
+        )
+
+        cmd_opts.add_option(
+            '--force-reinstall',
+            dest='force_reinstall',
+            action='store_true',
+            help='When upgrading, reinstall all packages even if they are '
+                 'already up-to-date.')
+
+        cmd_opts.add_option(
+            '-I', '--ignore-installed',
+            dest='ignore_installed',
+            action='store_true',
+            help='Ignore the installed packages (reinstalling instead).')
+
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_deps())
+
+        cmd_opts.add_option(cmdoptions.install_options())
+        cmd_opts.add_option(cmdoptions.global_options())
+
+        cmd_opts.add_option(
+            '--user',
+            dest='use_user_site',
+            action='store_true',
+            help="Install to the Python user install directory for your "
+                 "platform. Typically ~/.local/, or %APPDATA%\Python on "
+                 "Windows. (See the Python documentation for site.USER_BASE "
+                 "for full details.)")
+
+        cmd_opts.add_option(
+            '--egg',
+            dest='as_egg',
+            action='store_true',
+            help="Install packages as eggs, not 'flat', like pip normally "
+                 "does. This option is not about installing *from* eggs. "
+                 "(WARNING: Because this option overrides pip's normal install"
+                 " logic, requirements files may not behave as expected.)")
+
+        cmd_opts.add_option(
+            '--root',
+            dest='root_path',
+            metavar='dir',
+            default=None,
+            help="Install everything relative to this alternate root "
+                 "directory.")
+
+        cmd_opts.add_option(
+            '--prefix',
+            dest='prefix_path',
+            metavar='dir',
+            default=None,
+            help="Installation prefix where lib, bin and other top-level "
+                 "folders are placed")
+
+        cmd_opts.add_option(
+            "--compile",
+            action="store_true",
+            dest="compile",
+            default=True,
+            help="Compile py files to pyc",
+        )
+
+        cmd_opts.add_option(
+            "--no-compile",
+            action="store_false",
+            dest="compile",
+            help="Do not compile py files to pyc",
+        )
+
+        cmd_opts.add_option(cmdoptions.use_wheel())
+        cmd_opts.add_option(cmdoptions.no_use_wheel())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(cmdoptions.pre())
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def run(self, options, args):
+        cmdoptions.resolve_wheel_no_use_binary(options)
+        cmdoptions.check_install_build_global(options)
+
+        if options.as_egg:
+            warnings.warn(
+                "--egg has been deprecated and will be removed in the future. "
+                "This flag is mutually exclusive with large parts of pip, and "
+                "actually using it invalidates pip's ability to manage the "
+                "installation process.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.download_dir:
+            warnings.warn(
+                "pip install --download has been deprecated and will be "
+                "removed in the future. Pip now has a download command that "
+                "should be used instead.",
+                RemovedInPip10Warning,
+            )
+            options.ignore_installed = True
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+        install_options = options.install_options or []
+        if options.use_user_site:
+            if options.prefix_path:
+                raise CommandError(
+                    "Can not combine '--user' and '--prefix' as they imply "
+                    "different installation locations"
+                )
+            if virtualenv_no_global():
+                raise InstallationError(
+                    "Can not perform a '--user' install. User site-packages "
+                    "are not visible in this virtualenv."
+                )
+            install_options.append('--user')
+            install_options.append('--prefix=')
+
+        temp_target_dir = None
+        if options.target_dir:
+            options.ignore_installed = True
+            temp_target_dir = tempfile.mkdtemp()
+            options.target_dir = os.path.abspath(options.target_dir)
+            if (os.path.exists(options.target_dir) and not
+                    os.path.isdir(options.target_dir)):
+                raise CommandError(
+                    "Target path exists but is not a directory, will not "
+                    "continue."
+                )
+            install_options.append('--home=' + temp_target_dir)
+
+        global_options = options.global_options or []
+
+        with self._build_session(options) as session:
+
+            finder = self._build_package_finder(options, session)
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+            if options.cache_dir and not check_path_owner(options.cache_dir):
+                logger.warning(
+                    "The directory '%s' or its parent directory is not owned "
+                    "by the current user and caching wheels has been "
+                    "disabled. check the permissions and owner of that "
+                    "directory. If executing pip with sudo, you may want "
+                    "sudo's -H flag.",
+                    options.cache_dir,
+                )
+                options.cache_dir = None
+
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=options.download_dir,
+                    upgrade=options.upgrade,
+                    upgrade_strategy=options.upgrade_strategy,
+                    as_egg=options.as_egg,
+                    ignore_installed=options.ignore_installed,
+                    ignore_dependencies=options.ignore_dependencies,
+                    ignore_requires_python=options.ignore_requires_python,
+                    force_reinstall=options.force_reinstall,
+                    use_user_site=options.use_user_site,
+                    target_dir=temp_target_dir,
+                    session=session,
+                    pycompile=options.compile,
+                    isolated=options.isolated_mode,
+                    wheel_cache=wheel_cache,
+                    require_hashes=options.require_hashes,
+                )
+
+                self.populate_requirement_set(
+                    requirement_set, args, options, finder, session, self.name,
+                    wheel_cache
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                try:
+                    if (options.download_dir or not wheel or not
+                            options.cache_dir):
+                        # on -d don't do complex things like building
+                        # wheels, and don't try to build wheels when wheel is
+                        # not installed.
+                        requirement_set.prepare_files(finder)
+                    else:
+                        # build wheels before install.
+                        wb = WheelBuilder(
+                            requirement_set,
+                            finder,
+                            build_options=[],
+                            global_options=[],
+                        )
+                        # Ignore the result: a failed wheel will be
+                        # installed from the sdist/vcs whatever.
+                        wb.build(autobuilding=True)
+
+                    if not options.download_dir:
+                        requirement_set.install(
+                            install_options,
+                            global_options,
+                            root=options.root_path,
+                            prefix=options.prefix_path,
+                        )
+
+                        possible_lib_locations = get_lib_location_guesses(
+                            user=options.use_user_site,
+                            home=temp_target_dir,
+                            root=options.root_path,
+                            prefix=options.prefix_path,
+                            isolated=options.isolated_mode,
+                        )
+                        reqs = sorted(
+                            requirement_set.successfully_installed,
+                            key=operator.attrgetter('name'))
+                        items = []
+                        for req in reqs:
+                            item = req.name
+                            try:
+                                installed_version = get_installed_version(
+                                    req.name, possible_lib_locations
+                                )
+                                if installed_version:
+                                    item += '-' + installed_version
+                            except Exception:
+                                pass
+                            items.append(item)
+                        installed = ' '.join(items)
+                        if installed:
+                            logger.info('Successfully installed %s', installed)
+                    else:
+                        downloaded = ' '.join([
+                            req.name
+                            for req in requirement_set.successfully_downloaded
+                        ])
+                        if downloaded:
+                            logger.info(
+                                'Successfully downloaded %s', downloaded
+                            )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    # Clean up
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
+
+        if options.target_dir:
+            ensure_dir(options.target_dir)
+
+            # Checking both purelib and platlib directories for installed
+            # packages to be moved to target directory
+            lib_dir_list = []
+
+            purelib_dir = distutils_scheme('', home=temp_target_dir)['purelib']
+            platlib_dir = distutils_scheme('', home=temp_target_dir)['platlib']
+
+            if os.path.exists(purelib_dir):
+                lib_dir_list.append(purelib_dir)
+            if os.path.exists(platlib_dir) and platlib_dir != purelib_dir:
+                lib_dir_list.append(platlib_dir)
+
+            for lib_dir in lib_dir_list:
+                for item in os.listdir(lib_dir):
+                    target_item_dir = os.path.join(options.target_dir, item)
+                    if os.path.exists(target_item_dir):
+                        if not options.upgrade:
+                            logger.warning(
+                                'Target directory %s already exists. Specify '
+                                '--upgrade to force replacement.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.islink(target_item_dir):
+                            logger.warning(
+                                'Target directory %s already exists and is '
+                                'a link. Pip will not automatically replace '
+                                'links, please remove if replacement is '
+                                'desired.',
+                                target_item_dir
+                            )
+                            continue
+                        if os.path.isdir(target_item_dir):
+                            shutil.rmtree(target_item_dir)
+                        else:
+                            os.remove(target_item_dir)
+
+                    shutil.move(
+                        os.path.join(lib_dir, item),
+                        target_item_dir
+                    )
+            shutil.rmtree(temp_target_dir)
+        return requirement_set
+
+
+def get_lib_location_guesses(*args, **kwargs):
+    scheme = distutils_scheme('', *args, **kwargs)
+    return [scheme['purelib'], scheme['platlib']]
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/list.py b/venv1/lib/python3.5/site-packages/pip/commands/list.py
new file mode 100644
index 0000000..6f6995d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/list.py
@@ -0,0 +1,337 @@
+from __future__ import absolute_import
+
+import json
+import logging
+import warnings
+try:
+    from itertools import zip_longest
+except ImportError:
+    from itertools import izip_longest as zip_longest
+
+from pip._vendor import six
+
+from pip.basecommand import Command
+from pip.exceptions import CommandError
+from pip.index import PackageFinder
+from pip.utils import (
+    get_installed_distributions, dist_is_editable)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.cmdoptions import make_option_group, index_group
+
+logger = logging.getLogger(__name__)
+
+
+class ListCommand(Command):
+    """
+    List installed packages, including editables.
+
+    Packages are listed in a case-insensitive sorted order.
+    """
+    name = 'list'
+    usage = """
+      %prog [options]"""
+    summary = 'List installed packages.'
+
+    def __init__(self, *args, **kw):
+        super(ListCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-o', '--outdated',
+            action='store_true',
+            default=False,
+            help='List outdated packages')
+        cmd_opts.add_option(
+            '-u', '--uptodate',
+            action='store_true',
+            default=False,
+            help='List uptodate packages')
+        cmd_opts.add_option(
+            '-e', '--editable',
+            action='store_true',
+            default=False,
+            help='List editable projects.')
+        cmd_opts.add_option(
+            '-l', '--local',
+            action='store_true',
+            default=False,
+            help=('If in a virtualenv that has global access, do not list '
+                  'globally-installed packages.'),
+        )
+        self.cmd_opts.add_option(
+            '--user',
+            dest='user',
+            action='store_true',
+            default=False,
+            help='Only output packages installed in user-site.')
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(
+            '--format',
+            action='store',
+            dest='list_format',
+            choices=('legacy', 'columns', 'freeze', 'json'),
+            help="Select the output format among: legacy (default), columns, "
+                 "freeze or json.",
+        )
+
+        cmd_opts.add_option(
+            '--not-required',
+            action='store_true',
+            dest='not_required',
+            help="List packages that are not dependencies of "
+                 "installed packages.",
+        )
+
+        index_opts = make_option_group(index_group, self.parser)
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def _build_package_finder(self, options, index_urls, session):
+        """
+        Create a package finder appropriate to this list command.
+        """
+        return PackageFinder(
+            find_links=options.find_links,
+            index_urls=index_urls,
+            allow_all_prereleases=options.pre,
+            trusted_hosts=options.trusted_hosts,
+            process_dependency_links=options.process_dependency_links,
+            session=session,
+        )
+
+    def run(self, options, args):
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.list_format is None:
+            warnings.warn(
+                "The default format will switch to columns in the future. "
+                "You can use --format=(legacy|columns) (or define a "
+                "format=(legacy|columns) in your pip.conf under the [list] "
+                "section) to disable this warning.",
+                RemovedInPip10Warning,
+            )
+
+        if options.outdated and options.uptodate:
+            raise CommandError(
+                "Options --outdated and --uptodate cannot be combined.")
+
+        packages = get_installed_distributions(
+            local_only=options.local,
+            user_only=options.user,
+            editables_only=options.editable,
+        )
+
+        if options.outdated:
+            packages = self.get_outdated(packages, options)
+        elif options.uptodate:
+            packages = self.get_uptodate(packages, options)
+
+        if options.not_required:
+            packages = self.get_not_required(packages, options)
+
+        self.output_package_listing(packages, options)
+
+    def get_outdated(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version > dist.parsed_version
+        ]
+
+    def get_uptodate(self, packages, options):
+        return [
+            dist for dist in self.iter_packages_latest_infos(packages, options)
+            if dist.latest_version == dist.parsed_version
+        ]
+
+    def get_not_required(self, packages, options):
+        dep_keys = set()
+        for dist in packages:
+            dep_keys.update(requirement.key for requirement in dist.requires())
+        return set(pkg for pkg in packages if pkg.key not in dep_keys)
+
+    def iter_packages_latest_infos(self, packages, options):
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        dependency_links = []
+        for dist in packages:
+            if dist.has_metadata('dependency_links.txt'):
+                dependency_links.extend(
+                    dist.get_metadata_lines('dependency_links.txt'),
+                )
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, index_urls, session)
+            finder.add_dependency_links(dependency_links)
+
+            for dist in packages:
+                typ = 'unknown'
+                all_candidates = finder.find_all_candidates(dist.key)
+                if not options.pre:
+                    # Remove prereleases
+                    all_candidates = [candidate for candidate in all_candidates
+                                      if not candidate.version.is_prerelease]
+
+                if not all_candidates:
+                    continue
+                best_candidate = max(all_candidates,
+                                     key=finder._candidate_sort_key)
+                remote_version = best_candidate.version
+                if best_candidate.location.is_wheel:
+                    typ = 'wheel'
+                else:
+                    typ = 'sdist'
+                # This is dirty but makes the rest of the code much cleaner
+                dist.latest_version = remote_version
+                dist.latest_filetype = typ
+                yield dist
+
+    def output_legacy(self, dist):
+        if dist_is_editable(dist):
+            return '%s (%s, %s)' % (
+                dist.project_name,
+                dist.version,
+                dist.location,
+            )
+        else:
+            return '%s (%s)' % (dist.project_name, dist.version)
+
+    def output_legacy_latest(self, dist):
+        return '%s - Latest: %s [%s]' % (
+            self.output_legacy(dist),
+            dist.latest_version,
+            dist.latest_filetype,
+        )
+
+    def output_package_listing(self, packages, options):
+        packages = sorted(
+            packages,
+            key=lambda dist: dist.project_name.lower(),
+        )
+        if options.list_format == 'columns' and packages:
+            data, header = format_for_columns(packages, options)
+            self.output_package_listing_columns(data, header)
+        elif options.list_format == 'freeze':
+            for dist in packages:
+                logger.info("%s==%s", dist.project_name, dist.version)
+        elif options.list_format == 'json':
+            logger.info(format_for_json(packages, options))
+        else:  # legacy
+            for dist in packages:
+                if options.outdated:
+                    logger.info(self.output_legacy_latest(dist))
+                else:
+                    logger.info(self.output_legacy(dist))
+
+    def output_package_listing_columns(self, data, header):
+        # insert the header first: we need to know the size of column names
+        if len(data) > 0:
+            data.insert(0, header)
+
+        pkg_strings, sizes = tabulate(data)
+
+        # Create and add a separator.
+        if len(data) > 0:
+            pkg_strings.insert(1, " ".join(map(lambda x: '-' * x, sizes)))
+
+        for val in pkg_strings:
+            logger.info(val)
+
+
+def tabulate(vals):
+    # From pfmoore on GitHub:
+    # https://github.com/pypa/pip/issues/3651#issuecomment-216932564
+    assert len(vals) > 0
+
+    sizes = [0] * max(len(x) for x in vals)
+    for row in vals:
+        sizes = [max(s, len(str(c))) for s, c in zip_longest(sizes, row)]
+
+    result = []
+    for row in vals:
+        display = " ".join([str(c).ljust(s) if c is not None else ''
+                            for s, c in zip_longest(sizes, row)])
+        result.append(display)
+
+    return result, sizes
+
+
+def format_for_columns(pkgs, options):
+    """
+    Convert the package data into something usable
+    by output_package_listing_columns.
+    """
+    running_outdated = options.outdated
+    # Adjust the header for the `pip list --outdated` case.
+    if running_outdated:
+        header = ["Package", "Version", "Latest", "Type"]
+    else:
+        header = ["Package", "Version"]
+
+    data = []
+    if any(dist_is_editable(x) for x in pkgs):
+        header.append("Location")
+
+    for proj in pkgs:
+        # if we're working on the 'outdated' list, separate out the
+        # latest_version and type
+        row = [proj.project_name, proj.version]
+
+        if running_outdated:
+            row.append(proj.latest_version)
+            row.append(proj.latest_filetype)
+
+        if dist_is_editable(proj):
+            row.append(proj.location)
+
+        data.append(row)
+
+    return data, header
+
+
+def format_for_json(packages, options):
+    data = []
+    for dist in packages:
+        info = {
+            'name': dist.project_name,
+            'version': six.text_type(dist.version),
+        }
+        if options.outdated:
+            info['latest_version'] = six.text_type(dist.latest_version)
+            info['latest_filetype'] = dist.latest_filetype
+        data.append(info)
+    return json.dumps(data)
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/search.py b/venv1/lib/python3.5/site-packages/pip/commands/search.py
new file mode 100644
index 0000000..bd2ea8a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/search.py
@@ -0,0 +1,133 @@
+from __future__ import absolute_import
+
+import logging
+import sys
+import textwrap
+
+from pip.basecommand import Command, SUCCESS
+from pip.compat import OrderedDict
+from pip.download import PipXmlrpcTransport
+from pip.models import PyPI
+from pip.utils import get_terminal_size
+from pip.utils.logging import indent_log
+from pip.exceptions import CommandError
+from pip.status_codes import NO_MATCHES_FOUND
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor import pkg_resources
+from pip._vendor.six.moves import xmlrpc_client
+
+
+logger = logging.getLogger(__name__)
+
+
+class SearchCommand(Command):
+    """Search for PyPI packages whose name or summary contains <query>."""
+    name = 'search'
+    usage = """
+      %prog [options] <query>"""
+    summary = 'Search PyPI for packages.'
+
+    def __init__(self, *args, **kw):
+        super(SearchCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-i', '--index',
+            dest='index',
+            metavar='URL',
+            default=PyPI.pypi_url,
+            help='Base URL of Python Package Index (default %default)')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            raise CommandError('Missing required argument (search query).')
+        query = args
+        pypi_hits = self.search(query, options)
+        hits = transform_hits(pypi_hits)
+
+        terminal_width = None
+        if sys.stdout.isatty():
+            terminal_width = get_terminal_size()[0]
+
+        print_results(hits, terminal_width=terminal_width)
+        if pypi_hits:
+            return SUCCESS
+        return NO_MATCHES_FOUND
+
+    def search(self, query, options):
+        index_url = options.index
+        with self._build_session(options) as session:
+            transport = PipXmlrpcTransport(index_url, session)
+            pypi = xmlrpc_client.ServerProxy(index_url, transport)
+            hits = pypi.search({'name': query, 'summary': query}, 'or')
+            return hits
+
+
+def transform_hits(hits):
+    """
+    The list from pypi is really a list of versions. We want a list of
+    packages with the list of versions stored inline. This converts the
+    list from pypi into one we can use.
+    """
+    packages = OrderedDict()
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary']
+        version = hit['version']
+
+        if name not in packages.keys():
+            packages[name] = {
+                'name': name,
+                'summary': summary,
+                'versions': [version],
+            }
+        else:
+            packages[name]['versions'].append(version)
+
+            # if this is the highest version, replace summary and score
+            if version == highest_version(packages[name]['versions']):
+                packages[name]['summary'] = summary
+
+    return list(packages.values())
+
+
+def print_results(hits, name_column_width=None, terminal_width=None):
+    if not hits:
+        return
+    if name_column_width is None:
+        name_column_width = max([
+            len(hit['name']) + len(hit.get('versions', ['-'])[-1])
+            for hit in hits
+        ]) + 4
+
+    installed_packages = [p.project_name for p in pkg_resources.working_set]
+    for hit in hits:
+        name = hit['name']
+        summary = hit['summary'] or ''
+        version = hit.get('versions', ['-'])[-1]
+        if terminal_width is not None:
+            target_width = terminal_width - name_column_width - 5
+            if target_width > 10:
+                # wrap and indent summary to fit terminal
+                summary = textwrap.wrap(summary, target_width)
+                summary = ('\n' + ' ' * (name_column_width + 3)).join(summary)
+
+        line = '%-*s - %s' % (name_column_width,
+                              '%s (%s)' % (name, version), summary)
+        try:
+            logger.info(line)
+            if name in installed_packages:
+                dist = pkg_resources.get_distribution(name)
+                with indent_log():
+                    latest = highest_version(hit['versions'])
+                    if dist.version == latest:
+                        logger.info('INSTALLED: %s (latest)', dist.version)
+                    else:
+                        logger.info('INSTALLED: %s', dist.version)
+                        logger.info('LATEST:    %s', latest)
+        except UnicodeEncodeError:
+            pass
+
+
+def highest_version(versions):
+    return max(versions, key=parse_version)
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/show.py b/venv1/lib/python3.5/site-packages/pip/commands/show.py
new file mode 100644
index 0000000..111c16d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/show.py
@@ -0,0 +1,154 @@
+from __future__ import absolute_import
+
+from email.parser import FeedParser
+import logging
+import os
+
+from pip.basecommand import Command
+from pip.status_codes import SUCCESS, ERROR
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+
+
+logger = logging.getLogger(__name__)
+
+
+class ShowCommand(Command):
+    """Show information about one or more installed packages."""
+    name = 'show'
+    usage = """
+      %prog [options] <package> ..."""
+    summary = 'Show information about installed packages.'
+
+    def __init__(self, *args, **kw):
+        super(ShowCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-f', '--files',
+            dest='files',
+            action='store_true',
+            default=False,
+            help='Show the full list of installed files for each package.')
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        if not args:
+            logger.warning('ERROR: Please provide a package name or names.')
+            return ERROR
+        query = args
+
+        results = search_packages_info(query)
+        if not print_results(
+                results, list_files=options.files, verbose=options.verbose):
+            return ERROR
+        return SUCCESS
+
+
+def search_packages_info(query):
+    """
+    Gather details from installed distributions. Print distribution name,
+    version, location, and installed files. Installed files requires a
+    pip generated 'installed-files.txt' in the distributions '.egg-info'
+    directory.
+    """
+    installed = {}
+    for p in pkg_resources.working_set:
+        installed[canonicalize_name(p.project_name)] = p
+
+    query_names = [canonicalize_name(name) for name in query]
+
+    for dist in [installed[pkg] for pkg in query_names if pkg in installed]:
+        package = {
+            'name': dist.project_name,
+            'version': dist.version,
+            'location': dist.location,
+            'requires': [dep.project_name for dep in dist.requires()],
+        }
+        file_list = None
+        metadata = None
+        if isinstance(dist, pkg_resources.DistInfoDistribution):
+            # RECORDs should be part of .dist-info metadatas
+            if dist.has_metadata('RECORD'):
+                lines = dist.get_metadata_lines('RECORD')
+                paths = [l.split(',')[0] for l in lines]
+                paths = [os.path.join(dist.location, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('METADATA'):
+                metadata = dist.get_metadata('METADATA')
+        else:
+            # Otherwise use pip's log for .egg-info's
+            if dist.has_metadata('installed-files.txt'):
+                paths = dist.get_metadata_lines('installed-files.txt')
+                paths = [os.path.join(dist.egg_info, p) for p in paths]
+                file_list = [os.path.relpath(p, dist.location) for p in paths]
+
+            if dist.has_metadata('PKG-INFO'):
+                metadata = dist.get_metadata('PKG-INFO')
+
+        if dist.has_metadata('entry_points.txt'):
+            entry_points = dist.get_metadata_lines('entry_points.txt')
+            package['entry_points'] = entry_points
+
+        if dist.has_metadata('INSTALLER'):
+            for line in dist.get_metadata_lines('INSTALLER'):
+                if line.strip():
+                    package['installer'] = line.strip()
+                    break
+
+        # @todo: Should pkg_resources.Distribution have a
+        # `get_pkg_info` method?
+        feed_parser = FeedParser()
+        feed_parser.feed(metadata)
+        pkg_info_dict = feed_parser.close()
+        for key in ('metadata-version', 'summary',
+                    'home-page', 'author', 'author-email', 'license'):
+            package[key] = pkg_info_dict.get(key)
+
+        # It looks like FeedParser cannot deal with repeated headers
+        classifiers = []
+        for line in metadata.splitlines():
+            if line.startswith('Classifier: '):
+                classifiers.append(line[len('Classifier: '):])
+        package['classifiers'] = classifiers
+
+        if file_list:
+            package['files'] = sorted(file_list)
+        yield package
+
+
+def print_results(distributions, list_files=False, verbose=False):
+    """
+    Print the informations from installed distributions found.
+    """
+    results_printed = False
+    for i, dist in enumerate(distributions):
+        results_printed = True
+        if i > 0:
+            logger.info("---")
+        logger.info("Name: %s", dist.get('name', ''))
+        logger.info("Version: %s", dist.get('version', ''))
+        logger.info("Summary: %s", dist.get('summary', ''))
+        logger.info("Home-page: %s", dist.get('home-page', ''))
+        logger.info("Author: %s", dist.get('author', ''))
+        logger.info("Author-email: %s", dist.get('author-email', ''))
+        logger.info("License: %s", dist.get('license', ''))
+        logger.info("Location: %s", dist.get('location', ''))
+        logger.info("Requires: %s", ', '.join(dist.get('requires', [])))
+        if verbose:
+            logger.info("Metadata-Version: %s",
+                        dist.get('metadata-version', ''))
+            logger.info("Installer: %s", dist.get('installer', ''))
+            logger.info("Classifiers:")
+            for classifier in dist.get('classifiers', []):
+                logger.info("  %s", classifier)
+            logger.info("Entry-points:")
+            for entry in dist.get('entry_points', []):
+                logger.info("  %s", entry.strip())
+        if list_files:
+            logger.info("Files:")
+            for line in dist.get('files', []):
+                logger.info("  %s", line.strip())
+            if "files" not in dist:
+                logger.info("Cannot locate installed-files.txt")
+    return results_printed
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/uninstall.py b/venv1/lib/python3.5/site-packages/pip/commands/uninstall.py
new file mode 100644
index 0000000..8ba1a7c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/uninstall.py
@@ -0,0 +1,76 @@
+from __future__ import absolute_import
+
+import pip
+from pip.wheel import WheelCache
+from pip.req import InstallRequirement, RequirementSet, parse_requirements
+from pip.basecommand import Command
+from pip.exceptions import InstallationError
+
+
+class UninstallCommand(Command):
+    """
+    Uninstall packages.
+
+    pip is able to uninstall most installed packages. Known exceptions are:
+
+    - Pure distutils packages installed with ``python setup.py install``, which
+      leave behind no metadata to determine what files were installed.
+    - Script wrappers installed by ``python setup.py develop``.
+    """
+    name = 'uninstall'
+    usage = """
+      %prog [options] <package> ...
+      %prog [options] -r <requirements file> ..."""
+    summary = 'Uninstall packages.'
+
+    def __init__(self, *args, **kw):
+        super(UninstallCommand, self).__init__(*args, **kw)
+        self.cmd_opts.add_option(
+            '-r', '--requirement',
+            dest='requirements',
+            action='append',
+            default=[],
+            metavar='file',
+            help='Uninstall all the packages listed in the given requirements '
+                 'file.  This option can be used multiple times.',
+        )
+        self.cmd_opts.add_option(
+            '-y', '--yes',
+            dest='yes',
+            action='store_true',
+            help="Don't ask for confirmation of uninstall deletions.")
+
+        self.parser.insert_option_group(0, self.cmd_opts)
+
+    def run(self, options, args):
+        with self._build_session(options) as session:
+            format_control = pip.index.FormatControl(set(), set())
+            wheel_cache = WheelCache(options.cache_dir, format_control)
+            requirement_set = RequirementSet(
+                build_dir=None,
+                src_dir=None,
+                download_dir=None,
+                isolated=options.isolated_mode,
+                session=session,
+                wheel_cache=wheel_cache,
+            )
+            for name in args:
+                requirement_set.add_requirement(
+                    InstallRequirement.from_line(
+                        name, isolated=options.isolated_mode,
+                        wheel_cache=wheel_cache
+                    )
+                )
+            for filename in options.requirements:
+                for req in parse_requirements(
+                        filename,
+                        options=options,
+                        session=session,
+                        wheel_cache=wheel_cache):
+                    requirement_set.add_requirement(req)
+            if not requirement_set.has_requirements:
+                raise InstallationError(
+                    'You must give at least one requirement to %(name)s (see '
+                    '"pip help %(name)s")' % dict(name=self.name)
+                )
+            requirement_set.uninstall(auto_confirm=options.yes)
diff --git a/venv1/lib/python3.5/site-packages/pip/commands/wheel.py b/venv1/lib/python3.5/site-packages/pip/commands/wheel.py
new file mode 100644
index 0000000..70e95eb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/commands/wheel.py
@@ -0,0 +1,208 @@
+# -*- coding: utf-8 -*-
+from __future__ import absolute_import
+
+import logging
+import os
+import warnings
+
+from pip.basecommand import RequirementCommand
+from pip.exceptions import CommandError, PreviousBuildDirError
+from pip.req import RequirementSet
+from pip.utils import import_or_raise
+from pip.utils.build import BuildDirectory
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.wheel import WheelCache, WheelBuilder
+from pip import cmdoptions
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCommand(RequirementCommand):
+    """
+    Build Wheel archives for your requirements and dependencies.
+
+    Wheel is a built-package format, and offers the advantage of not
+    recompiling your software during every install. For more details, see the
+    wheel docs: https://wheel.readthedocs.io/en/latest/
+
+    Requirements: setuptools>=0.8, and wheel.
+
+    'pip wheel' uses the bdist_wheel setuptools extension from the wheel
+    package to build individual wheels.
+
+    """
+
+    name = 'wheel'
+    usage = """
+      %prog [options] <requirement specifier> ...
+      %prog [options] -r <requirements file> ...
+      %prog [options] [-e] <vcs project url> ...
+      %prog [options] [-e] <local project path> ...
+      %prog [options] <archive url/path> ..."""
+
+    summary = 'Build wheels from your requirements.'
+
+    def __init__(self, *args, **kw):
+        super(WheelCommand, self).__init__(*args, **kw)
+
+        cmd_opts = self.cmd_opts
+
+        cmd_opts.add_option(
+            '-w', '--wheel-dir',
+            dest='wheel_dir',
+            metavar='dir',
+            default=os.curdir,
+            help=("Build wheels into <dir>, where the default is the "
+                  "current working directory."),
+        )
+        cmd_opts.add_option(cmdoptions.use_wheel())
+        cmd_opts.add_option(cmdoptions.no_use_wheel())
+        cmd_opts.add_option(cmdoptions.no_binary())
+        cmd_opts.add_option(cmdoptions.only_binary())
+        cmd_opts.add_option(
+            '--build-option',
+            dest='build_options',
+            metavar='options',
+            action='append',
+            help="Extra arguments to be supplied to 'setup.py bdist_wheel'.")
+        cmd_opts.add_option(cmdoptions.constraints())
+        cmd_opts.add_option(cmdoptions.editable())
+        cmd_opts.add_option(cmdoptions.requirements())
+        cmd_opts.add_option(cmdoptions.src())
+        cmd_opts.add_option(cmdoptions.ignore_requires_python())
+        cmd_opts.add_option(cmdoptions.no_deps())
+        cmd_opts.add_option(cmdoptions.build_dir())
+
+        cmd_opts.add_option(
+            '--global-option',
+            dest='global_options',
+            action='append',
+            metavar='options',
+            help="Extra global options to be supplied to the setup.py "
+            "call before the 'bdist_wheel' command.")
+
+        cmd_opts.add_option(
+            '--pre',
+            action='store_true',
+            default=False,
+            help=("Include pre-release and development versions. By default, "
+                  "pip only finds stable versions."),
+        )
+
+        cmd_opts.add_option(cmdoptions.no_clean())
+        cmd_opts.add_option(cmdoptions.require_hashes())
+
+        index_opts = cmdoptions.make_option_group(
+            cmdoptions.index_group,
+            self.parser,
+        )
+
+        self.parser.insert_option_group(0, index_opts)
+        self.parser.insert_option_group(0, cmd_opts)
+
+    def check_required_packages(self):
+        import_or_raise(
+            'wheel.bdist_wheel',
+            CommandError,
+            "'pip wheel' requires the 'wheel' package. To fix this, run: "
+            "pip install wheel"
+        )
+        pkg_resources = import_or_raise(
+            'pkg_resources',
+            CommandError,
+            "'pip wheel' requires setuptools >= 0.8 for dist-info support."
+            " To fix this, run: pip install --upgrade setuptools"
+        )
+        if not hasattr(pkg_resources, 'DistInfoDistribution'):
+            raise CommandError(
+                "'pip wheel' requires setuptools >= 0.8 for dist-info "
+                "support. To fix this, run: pip install --upgrade "
+                "setuptools"
+            )
+
+    def run(self, options, args):
+        self.check_required_packages()
+        cmdoptions.resolve_wheel_no_use_binary(options)
+        cmdoptions.check_install_build_global(options)
+
+        if options.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if options.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        index_urls = [options.index_url] + options.extra_index_urls
+        if options.no_index:
+            logger.debug('Ignoring indexes: %s', ','.join(index_urls))
+            index_urls = []
+
+        if options.build_dir:
+            options.build_dir = os.path.abspath(options.build_dir)
+
+        options.src_dir = os.path.abspath(options.src_dir)
+
+        with self._build_session(options) as session:
+            finder = self._build_package_finder(options, session)
+            build_delete = (not (options.no_clean or options.build_dir))
+            wheel_cache = WheelCache(options.cache_dir, options.format_control)
+            with BuildDirectory(options.build_dir,
+                                delete=build_delete) as build_dir:
+                requirement_set = RequirementSet(
+                    build_dir=build_dir,
+                    src_dir=options.src_dir,
+                    download_dir=None,
+                    ignore_dependencies=options.ignore_dependencies,
+                    ignore_installed=True,
+                    ignore_requires_python=options.ignore_requires_python,
+                    isolated=options.isolated_mode,
+                    session=session,
+                    wheel_cache=wheel_cache,
+                    wheel_download_dir=options.wheel_dir,
+                    require_hashes=options.require_hashes
+                )
+
+                self.populate_requirement_set(
+                    requirement_set, args, options, finder, session, self.name,
+                    wheel_cache
+                )
+
+                if not requirement_set.has_requirements:
+                    return
+
+                try:
+                    # build wheels
+                    wb = WheelBuilder(
+                        requirement_set,
+                        finder,
+                        build_options=options.build_options or [],
+                        global_options=options.global_options or [],
+                    )
+                    if not wb.build():
+                        raise CommandError(
+                            "Failed to build one or more wheels"
+                        )
+                except PreviousBuildDirError:
+                    options.no_clean = True
+                    raise
+                finally:
+                    if not options.no_clean:
+                        requirement_set.cleanup_files()
diff --git a/venv1/lib/python3.5/site-packages/pip/compat/__init__.py b/venv1/lib/python3.5/site-packages/pip/compat/__init__.py
new file mode 100644
index 0000000..099672c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/compat/__init__.py
@@ -0,0 +1,164 @@
+"""Stuff that differs in different Python versions and platform
+distributions."""
+from __future__ import absolute_import, division
+
+import os
+import sys
+
+from pip._vendor.six import text_type
+
+try:
+    from logging.config import dictConfig as logging_dictConfig
+except ImportError:
+    from pip.compat.dictconfig import dictConfig as logging_dictConfig
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from pip._vendor.ordereddict import OrderedDict
+
+try:
+    import ipaddress
+except ImportError:
+    try:
+        from pip._vendor import ipaddress
+    except ImportError:
+        import ipaddr as ipaddress
+        ipaddress.ip_address = ipaddress.IPAddress
+        ipaddress.ip_network = ipaddress.IPNetwork
+
+
+try:
+    import sysconfig
+
+    def get_stdlib():
+        paths = [
+            sysconfig.get_path("stdlib"),
+            sysconfig.get_path("platstdlib"),
+        ]
+        return set(filter(bool, paths))
+except ImportError:
+    from distutils import sysconfig
+
+    def get_stdlib():
+        paths = [
+            sysconfig.get_python_lib(standard_lib=True),
+            sysconfig.get_python_lib(standard_lib=True, plat_specific=True),
+        ]
+        return set(filter(bool, paths))
+
+
+__all__ = [
+    "logging_dictConfig", "ipaddress", "uses_pycache", "console_to_str",
+    "native_str", "get_path_uid", "stdlib_pkgs", "WINDOWS", "samefile",
+    "OrderedDict",
+]
+
+
+if sys.version_info >= (3, 4):
+    uses_pycache = True
+    from importlib.util import cache_from_source
+else:
+    import imp
+    uses_pycache = hasattr(imp, 'cache_from_source')
+    if uses_pycache:
+        cache_from_source = imp.cache_from_source
+    else:
+        cache_from_source = None
+
+
+if sys.version_info >= (3,):
+    def console_to_str(s):
+        try:
+            return s.decode(sys.__stdout__.encoding)
+        except UnicodeDecodeError:
+            return s.decode('utf_8')
+
+    def native_str(s, replace=False):
+        if isinstance(s, bytes):
+            return s.decode('utf-8', 'replace' if replace else 'strict')
+        return s
+
+else:
+    def console_to_str(s):
+        return s
+
+    def native_str(s, replace=False):
+        # Replace is ignored -- unicode to UTF-8 can't fail
+        if isinstance(s, text_type):
+            return s.encode('utf-8')
+        return s
+
+
+def total_seconds(td):
+    if hasattr(td, "total_seconds"):
+        return td.total_seconds()
+    else:
+        val = td.microseconds + (td.seconds + td.days * 24 * 3600) * 10 ** 6
+        return val / 10 ** 6
+
+
+def get_path_uid(path):
+    """
+    Return path's uid.
+
+    Does not follow symlinks:
+        https://github.com/pypa/pip/pull/935#discussion_r5307003
+
+    Placed this function in compat due to differences on AIX and
+    Jython, that should eventually go away.
+
+    :raises OSError: When path is a symlink or can't be read.
+    """
+    if hasattr(os, 'O_NOFOLLOW'):
+        fd = os.open(path, os.O_RDONLY | os.O_NOFOLLOW)
+        file_uid = os.fstat(fd).st_uid
+        os.close(fd)
+    else:  # AIX and Jython
+        # WARNING: time of check vulnerability, but best we can do w/o NOFOLLOW
+        if not os.path.islink(path):
+            # older versions of Jython don't have `os.fstat`
+            file_uid = os.stat(path).st_uid
+        else:
+            # raise OSError for parity with os.O_NOFOLLOW above
+            raise OSError(
+                "%s is a symlink; Will not return uid for symlinks" % path
+            )
+    return file_uid
+
+
+def expanduser(path):
+    """
+    Expand ~ and ~user constructions.
+
+    Includes a workaround for http://bugs.python.org/issue14768
+    """
+    expanded = os.path.expanduser(path)
+    if path.startswith('~/') and expanded.startswith('//'):
+        expanded = expanded[1:]
+    return expanded
+
+
+# packages in the stdlib that may have installation metadata, but should not be
+# considered 'installed'.  this theoretically could be determined based on
+# dist.location (py27:`sysconfig.get_paths()['stdlib']`,
+# py26:sysconfig.get_config_vars('LIBDEST')), but fear platform variation may
+# make this ineffective, so hard-coding
+stdlib_pkgs = ('python', 'wsgiref')
+if sys.version_info >= (2, 7):
+    stdlib_pkgs += ('argparse',)
+
+
+# windows detection, covers cpython and ironpython
+WINDOWS = (sys.platform.startswith("win") or
+           (sys.platform == 'cli' and os.name == 'nt'))
+
+
+def samefile(file1, file2):
+    """Provide an alternative for os.path.samefile on Windows/Python2"""
+    if hasattr(os.path, 'samefile'):
+        return os.path.samefile(file1, file2)
+    else:
+        path1 = os.path.normcase(os.path.abspath(file1))
+        path2 = os.path.normcase(os.path.abspath(file2))
+        return path1 == path2
diff --git a/venv1/lib/python3.5/site-packages/pip/compat/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/compat/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/compat/__pycache__/dictconfig.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/compat/__pycache__/dictconfig.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/compat/dictconfig.py b/venv1/lib/python3.5/site-packages/pip/compat/dictconfig.py
new file mode 100644
index 0000000..ec684aa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/compat/dictconfig.py
@@ -0,0 +1,565 @@
+# This is a copy of the Python logging.config.dictconfig module,
+# reproduced with permission. It is provided here for backwards
+# compatibility for Python versions prior to 2.7.
+#
+# Copyright 2009-2010 by Vinay Sajip. All Rights Reserved.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted,
+# provided that the above copyright notice appear in all copies and that
+# both that copyright notice and this permission notice appear in
+# supporting documentation, and that the name of Vinay Sajip
+# not be used in advertising or publicity pertaining to distribution
+# of the software without specific, written prior permission.
+# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+from __future__ import absolute_import
+
+import logging.handlers
+import re
+import sys
+import types
+
+from pip._vendor import six
+
+# flake8: noqa
+
+IDENTIFIER = re.compile('^[a-z_][a-z0-9_]*$', re.I)
+
+
+def valid_ident(s):
+    m = IDENTIFIER.match(s)
+    if not m:
+        raise ValueError('Not a valid Python identifier: %r' % s)
+    return True
+
+#
+# This function is defined in logging only in recent versions of Python
+#
+try:
+    from logging import _checkLevel
+except ImportError:
+    def _checkLevel(level):
+        if isinstance(level, int):
+            rv = level
+        elif str(level) == level:
+            if level not in logging._levelNames:
+                raise ValueError('Unknown level: %r' % level)
+            rv = logging._levelNames[level]
+        else:
+            raise TypeError('Level not an integer or a '
+                            'valid string: %r' % level)
+        return rv
+
+# The ConvertingXXX classes are wrappers around standard Python containers,
+# and they serve to convert any suitable values in the container. The
+# conversion converts base dicts, lists and tuples to their wrapped
+# equivalents, whereas strings which match a conversion format are converted
+# appropriately.
+#
+# Each wrapper should have a configurator attribute holding the actual
+# configurator to use for conversion.
+
+
+class ConvertingDict(dict):
+    """A converting dictionary wrapper."""
+
+    def __getitem__(self, key):
+        value = dict.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def get(self, key, default=None):
+        value = dict.get(self, key, default)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def pop(self, key, default=None):
+        value = dict.pop(self, key, default)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+
+class ConvertingList(list):
+    """A converting list wrapper."""
+    def __getitem__(self, key):
+        value = list.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        # If the converted value is different, save for next time
+        if value is not result:
+            self[key] = result
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+    def pop(self, idx=-1):
+        value = list.pop(self, idx)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+        return result
+
+
+class ConvertingTuple(tuple):
+    """A converting tuple wrapper."""
+    def __getitem__(self, key):
+        value = tuple.__getitem__(self, key)
+        result = self.configurator.convert(value)
+        if value is not result:
+            if type(result) in (ConvertingDict, ConvertingList,
+                                ConvertingTuple):
+                result.parent = self
+                result.key = key
+        return result
+
+
+class BaseConfigurator(object):
+    """
+    The configurator base class which defines some useful defaults.
+    """
+
+    CONVERT_PATTERN = re.compile(r'^(?P<prefix>[a-z]+)://(?P<suffix>.*)$')
+
+    WORD_PATTERN = re.compile(r'^\s*(\w+)\s*')
+    DOT_PATTERN = re.compile(r'^\.\s*(\w+)\s*')
+    INDEX_PATTERN = re.compile(r'^\[\s*(\w+)\s*\]\s*')
+    DIGIT_PATTERN = re.compile(r'^\d+$')
+
+    value_converters = {
+        'ext' : 'ext_convert',
+        'cfg' : 'cfg_convert',
+    }
+
+    # We might want to use a different one, e.g. importlib
+    importer = __import__
+
+    def __init__(self, config):
+        self.config = ConvertingDict(config)
+        self.config.configurator = self
+
+    def resolve(self, s):
+        """
+        Resolve strings to objects using standard import and attribute
+        syntax.
+        """
+        name = s.split('.')
+        used = name.pop(0)
+        try:
+            found = self.importer(used)
+            for frag in name:
+                used += '.' + frag
+                try:
+                    found = getattr(found, frag)
+                except AttributeError:
+                    self.importer(used)
+                    found = getattr(found, frag)
+            return found
+        except ImportError:
+            e, tb = sys.exc_info()[1:]
+            v = ValueError('Cannot resolve %r: %s' % (s, e))
+            v.__cause__, v.__traceback__ = e, tb
+            raise v
+
+    def ext_convert(self, value):
+        """Default converter for the ext:// protocol."""
+        return self.resolve(value)
+
+    def cfg_convert(self, value):
+        """Default converter for the cfg:// protocol."""
+        rest = value
+        m = self.WORD_PATTERN.match(rest)
+        if m is None:
+            raise ValueError("Unable to convert %r" % value)
+        else:
+            rest = rest[m.end():]
+            d = self.config[m.groups()[0]]
+            # print d, rest
+            while rest:
+                m = self.DOT_PATTERN.match(rest)
+                if m:
+                    d = d[m.groups()[0]]
+                else:
+                    m = self.INDEX_PATTERN.match(rest)
+                    if m:
+                        idx = m.groups()[0]
+                        if not self.DIGIT_PATTERN.match(idx):
+                            d = d[idx]
+                        else:
+                            try:
+                                n = int(idx)  # try as number first (most likely)
+                                d = d[n]
+                            except TypeError:
+                                d = d[idx]
+                if m:
+                    rest = rest[m.end():]
+                else:
+                    raise ValueError('Unable to convert '
+                                     '%r at %r' % (value, rest))
+        # rest should be empty
+        return d
+
+    def convert(self, value):
+        """
+        Convert values to an appropriate type. dicts, lists and tuples are
+        replaced by their converting alternatives. Strings are checked to
+        see if they have a conversion format and are converted if they do.
+        """
+        if not isinstance(value, ConvertingDict) and isinstance(value, dict):
+            value = ConvertingDict(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingList) and isinstance(value, list):
+            value = ConvertingList(value)
+            value.configurator = self
+        elif not isinstance(value, ConvertingTuple) and\
+                 isinstance(value, tuple):
+            value = ConvertingTuple(value)
+            value.configurator = self
+        elif isinstance(value, six.string_types):  # str for py3k
+            m = self.CONVERT_PATTERN.match(value)
+            if m:
+                d = m.groupdict()
+                prefix = d['prefix']
+                converter = self.value_converters.get(prefix, None)
+                if converter:
+                    suffix = d['suffix']
+                    converter = getattr(self, converter)
+                    value = converter(suffix)
+        return value
+
+    def configure_custom(self, config):
+        """Configure an object with a user-supplied factory."""
+        c = config.pop('()')
+        if not hasattr(c, '__call__') and hasattr(types, 'ClassType') and type(c) != types.ClassType:
+            c = self.resolve(c)
+        props = config.pop('.', None)
+        # Check for valid identifiers
+        kwargs = dict((k, config[k]) for k in config if valid_ident(k))
+        result = c(**kwargs)
+        if props:
+            for name, value in props.items():
+                setattr(result, name, value)
+        return result
+
+    def as_tuple(self, value):
+        """Utility function which converts lists to tuples."""
+        if isinstance(value, list):
+            value = tuple(value)
+        return value
+
+
+class DictConfigurator(BaseConfigurator):
+    """
+    Configure logging using a dictionary-like object to describe the
+    configuration.
+    """
+
+    def configure(self):
+        """Do the configuration."""
+
+        config = self.config
+        if 'version' not in config:
+            raise ValueError("dictionary doesn't specify a version")
+        if config['version'] != 1:
+            raise ValueError("Unsupported version: %s" % config['version'])
+        incremental = config.pop('incremental', False)
+        EMPTY_DICT = {}
+        logging._acquireLock()
+        try:
+            if incremental:
+                handlers = config.get('handlers', EMPTY_DICT)
+                # incremental handler config only if handler name
+                # ties in to logging._handlers (Python 2.7)
+                if sys.version_info[:2] == (2, 7):
+                    for name in handlers:
+                        if name not in logging._handlers:
+                            raise ValueError('No handler found with '
+                                             'name %r'  % name)
+                        else:
+                            try:
+                                handler = logging._handlers[name]
+                                handler_config = handlers[name]
+                                level = handler_config.get('level', None)
+                                if level:
+                                    handler.setLevel(_checkLevel(level))
+                            except StandardError as e:
+                                raise ValueError('Unable to configure handler '
+                                                 '%r: %s' % (name, e))
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    try:
+                        self.configure_logger(name, loggers[name], True)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r: %s' % (name, e))
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root, True)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger: %s' % e)
+            else:
+                disable_existing = config.pop('disable_existing_loggers', True)
+
+                logging._handlers.clear()
+                del logging._handlerList[:]
+
+                # Do formatters first - they don't refer to anything else
+                formatters = config.get('formatters', EMPTY_DICT)
+                for name in formatters:
+                    try:
+                        formatters[name] = self.configure_formatter(
+                                                            formatters[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure '
+                                         'formatter %r: %s' % (name, e))
+                # Next, do filters - they don't refer to anything else, either
+                filters = config.get('filters', EMPTY_DICT)
+                for name in filters:
+                    try:
+                        filters[name] = self.configure_filter(filters[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure '
+                                         'filter %r: %s' % (name, e))
+
+                # Next, do handlers - they refer to formatters and filters
+                # As handlers can refer to other handlers, sort the keys
+                # to allow a deterministic order of configuration
+                handlers = config.get('handlers', EMPTY_DICT)
+                for name in sorted(handlers):
+                    try:
+                        handler = self.configure_handler(handlers[name])
+                        handler.name = name
+                        handlers[name] = handler
+                    except StandardError as e:
+                        raise ValueError('Unable to configure handler '
+                                         '%r: %s' % (name, e))
+                # Next, do loggers - they refer to handlers and filters
+
+                # we don't want to lose the existing loggers,
+                # since other threads may have pointers to them.
+                # existing is set to contain all existing loggers,
+                # and as we go through the new configuration we
+                # remove any which are configured. At the end,
+                # what's left in existing is the set of loggers
+                # which were in the previous configuration but
+                # which are not in the new configuration.
+                root = logging.root
+                existing = list(root.manager.loggerDict)
+                # The list needs to be sorted so that we can
+                # avoid disabling child loggers of explicitly
+                # named loggers. With a sorted list it is easier
+                # to find the child loggers.
+                existing.sort()
+                # We'll keep the list of existing loggers
+                # which are children of named loggers here...
+                child_loggers = []
+                # now set up the new ones...
+                loggers = config.get('loggers', EMPTY_DICT)
+                for name in loggers:
+                    if name in existing:
+                        i = existing.index(name)
+                        prefixed = name + "."
+                        pflen = len(prefixed)
+                        num_existing = len(existing)
+                        i = i + 1  # look at the entry after name
+                        while (i < num_existing) and\
+                              (existing[i][:pflen] == prefixed):
+                            child_loggers.append(existing[i])
+                            i = i + 1
+                        existing.remove(name)
+                    try:
+                        self.configure_logger(name, loggers[name])
+                    except StandardError as e:
+                        raise ValueError('Unable to configure logger '
+                                         '%r: %s' % (name, e))
+
+                # Disable any old loggers. There's no point deleting
+                # them as other threads may continue to hold references
+                # and by disabling them, you stop them doing any logging.
+                # However, don't disable children of named loggers, as that's
+                # probably not what was intended by the user.
+                for log in existing:
+                    logger = root.manager.loggerDict[log]
+                    if log in child_loggers:
+                        logger.level = logging.NOTSET
+                        logger.handlers = []
+                        logger.propagate = True
+                    elif disable_existing:
+                        logger.disabled = True
+
+                # And finally, do the root logger
+                root = config.get('root', None)
+                if root:
+                    try:
+                        self.configure_root(root)
+                    except StandardError as e:
+                        raise ValueError('Unable to configure root '
+                                         'logger: %s' % e)
+        finally:
+            logging._releaseLock()
+
+    def configure_formatter(self, config):
+        """Configure a formatter from a dictionary."""
+        if '()' in config:
+            factory = config['()']  # for use in exception handler
+            try:
+                result = self.configure_custom(config)
+            except TypeError as te:
+                if "'format'" not in str(te):
+                    raise
+                # Name of parameter changed from fmt to format.
+                # Retry with old name.
+                # This is so that code can be used with older Python versions
+                #(e.g. by Django)
+                config['fmt'] = config.pop('format')
+                config['()'] = factory
+                result = self.configure_custom(config)
+        else:
+            fmt = config.get('format', None)
+            dfmt = config.get('datefmt', None)
+            result = logging.Formatter(fmt, dfmt)
+        return result
+
+    def configure_filter(self, config):
+        """Configure a filter from a dictionary."""
+        if '()' in config:
+            result = self.configure_custom(config)
+        else:
+            name = config.get('name', '')
+            result = logging.Filter(name)
+        return result
+
+    def add_filters(self, filterer, filters):
+        """Add filters to a filterer from a list of names."""
+        for f in filters:
+            try:
+                filterer.addFilter(self.config['filters'][f])
+            except StandardError as e:
+                raise ValueError('Unable to add filter %r: %s' % (f, e))
+
+    def configure_handler(self, config):
+        """Configure a handler from a dictionary."""
+        formatter = config.pop('formatter', None)
+        if formatter:
+            try:
+                formatter = self.config['formatters'][formatter]
+            except StandardError as e:
+                raise ValueError('Unable to set formatter '
+                                 '%r: %s' % (formatter, e))
+        level = config.pop('level', None)
+        filters = config.pop('filters', None)
+        if '()' in config:
+            c = config.pop('()')
+            if not hasattr(c, '__call__') and hasattr(types, 'ClassType') and type(c) != types.ClassType:
+                c = self.resolve(c)
+            factory = c
+        else:
+            klass = self.resolve(config.pop('class'))
+            # Special case for handler which refers to another handler
+            if issubclass(klass, logging.handlers.MemoryHandler) and\
+                'target' in config:
+                try:
+                    config['target'] = self.config['handlers'][config['target']]
+                except StandardError as e:
+                    raise ValueError('Unable to set target handler '
+                                     '%r: %s' % (config['target'], e))
+            elif issubclass(klass, logging.handlers.SMTPHandler) and\
+                'mailhost' in config:
+                config['mailhost'] = self.as_tuple(config['mailhost'])
+            elif issubclass(klass, logging.handlers.SysLogHandler) and\
+                'address' in config:
+                config['address'] = self.as_tuple(config['address'])
+            factory = klass
+        kwargs = dict((k, config[k]) for k in config if valid_ident(k))
+        try:
+            result = factory(**kwargs)
+        except TypeError as te:
+            if "'stream'" not in str(te):
+                raise
+            # The argument name changed from strm to stream
+            # Retry with old name.
+            # This is so that code can be used with older Python versions
+            #(e.g. by Django)
+            kwargs['strm'] = kwargs.pop('stream')
+            result = factory(**kwargs)
+        if formatter:
+            result.setFormatter(formatter)
+        if level is not None:
+            result.setLevel(_checkLevel(level))
+        if filters:
+            self.add_filters(result, filters)
+        return result
+
+    def add_handlers(self, logger, handlers):
+        """Add handlers to a logger from a list of names."""
+        for h in handlers:
+            try:
+                logger.addHandler(self.config['handlers'][h])
+            except StandardError as e:
+                raise ValueError('Unable to add handler %r: %s' % (h, e))
+
+    def common_logger_config(self, logger, config, incremental=False):
+        """
+        Perform configuration which is common to root and non-root loggers.
+        """
+        level = config.get('level', None)
+        if level is not None:
+            logger.setLevel(_checkLevel(level))
+        if not incremental:
+            # Remove any existing handlers
+            for h in logger.handlers[:]:
+                logger.removeHandler(h)
+            handlers = config.get('handlers', None)
+            if handlers:
+                self.add_handlers(logger, handlers)
+            filters = config.get('filters', None)
+            if filters:
+                self.add_filters(logger, filters)
+
+    def configure_logger(self, name, config, incremental=False):
+        """Configure a non-root logger from a dictionary."""
+        logger = logging.getLogger(name)
+        self.common_logger_config(logger, config, incremental)
+        propagate = config.get('propagate', None)
+        if propagate is not None:
+            logger.propagate = propagate
+
+    def configure_root(self, config, incremental=False):
+        """Configure a root logger from a dictionary."""
+        root = logging.getLogger()
+        self.common_logger_config(root, config, incremental)
+
+dictConfigClass = DictConfigurator
+
+
+def dictConfig(config):
+    """Configure logging using a dictionary."""
+    dictConfigClass(config).configure()
diff --git a/venv1/lib/python3.5/site-packages/pip/download.py b/venv1/lib/python3.5/site-packages/pip/download.py
new file mode 100644
index 0000000..54d3131
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/download.py
@@ -0,0 +1,906 @@
+from __future__ import absolute_import
+
+import cgi
+import email.utils
+import getpass
+import json
+import logging
+import mimetypes
+import os
+import platform
+import re
+import shutil
+import sys
+import tempfile
+
+try:
+    import ssl  # noqa
+    HAS_TLS = True
+except ImportError:
+    HAS_TLS = False
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+
+import pip
+
+from pip.exceptions import InstallationError, HashMismatch
+from pip.models import PyPI
+from pip.utils import (splitext, rmtree, format_size, display_path,
+                       backup_dir, ask_path_exists, unpack_file,
+                       ARCHIVE_EXTENSIONS, consume, call_subprocess)
+from pip.utils.encoding import auto_decode
+from pip.utils.filesystem import check_path_owner
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip.utils.glibc import libc_ver
+from pip.utils.ui import DownloadProgressBar, DownloadProgressSpinner
+from pip.locations import write_delete_marker_file
+from pip.vcs import vcs
+from pip._vendor import requests, six
+from pip._vendor.requests.adapters import BaseAdapter, HTTPAdapter
+from pip._vendor.requests.auth import AuthBase, HTTPBasicAuth
+from pip._vendor.requests.models import CONTENT_CHUNK_SIZE, Response
+from pip._vendor.requests.utils import get_netrc_auth
+from pip._vendor.requests.structures import CaseInsensitiveDict
+from pip._vendor.requests.packages import urllib3
+from pip._vendor.cachecontrol import CacheControlAdapter
+from pip._vendor.cachecontrol.caches import FileCache
+from pip._vendor.lockfile import LockError
+from pip._vendor.six.moves import xmlrpc_client
+
+
+__all__ = ['get_file_content',
+           'is_url', 'url_to_path', 'path_to_url',
+           'is_archive_file', 'unpack_vcs_link',
+           'unpack_file_url', 'is_vcs_url', 'is_file_url',
+           'unpack_http_url', 'unpack_url']
+
+
+logger = logging.getLogger(__name__)
+
+
+def user_agent():
+    """
+    Return a string representing the user agent.
+    """
+    data = {
+        "installer": {"name": "pip", "version": pip.__version__},
+        "python": platform.python_version(),
+        "implementation": {
+            "name": platform.python_implementation(),
+        },
+    }
+
+    if data["implementation"]["name"] == 'CPython':
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'PyPy':
+        if sys.pypy_version_info.releaselevel == 'final':
+            pypy_version_info = sys.pypy_version_info[:3]
+        else:
+            pypy_version_info = sys.pypy_version_info
+        data["implementation"]["version"] = ".".join(
+            [str(x) for x in pypy_version_info]
+        )
+    elif data["implementation"]["name"] == 'Jython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+    elif data["implementation"]["name"] == 'IronPython':
+        # Complete Guess
+        data["implementation"]["version"] = platform.python_version()
+
+    if sys.platform.startswith("linux"):
+        from pip._vendor import distro
+        distro_infos = dict(filter(
+            lambda x: x[1],
+            zip(["name", "version", "id"], distro.linux_distribution()),
+        ))
+        libc = dict(filter(
+            lambda x: x[1],
+            zip(["lib", "version"], libc_ver()),
+        ))
+        if libc:
+            distro_infos["libc"] = libc
+        if distro_infos:
+            data["distro"] = distro_infos
+
+    if sys.platform.startswith("darwin") and platform.mac_ver()[0]:
+        data["distro"] = {"name": "macOS", "version": platform.mac_ver()[0]}
+
+    if platform.system():
+        data.setdefault("system", {})["name"] = platform.system()
+
+    if platform.release():
+        data.setdefault("system", {})["release"] = platform.release()
+
+    if platform.machine():
+        data["cpu"] = platform.machine()
+
+    # Python 2.6 doesn't have ssl.OPENSSL_VERSION.
+    if HAS_TLS and sys.version_info[:2] > (2, 6):
+        data["openssl_version"] = ssl.OPENSSL_VERSION
+
+    return "{data[installer][name]}/{data[installer][version]} {json}".format(
+        data=data,
+        json=json.dumps(data, separators=(",", ":"), sort_keys=True),
+    )
+
+
+class MultiDomainBasicAuth(AuthBase):
+
+    def __init__(self, prompting=True):
+        self.prompting = prompting
+        self.passwords = {}
+
+    def __call__(self, req):
+        parsed = urllib_parse.urlparse(req.url)
+
+        # Get the netloc without any embedded credentials
+        netloc = parsed.netloc.rsplit("@", 1)[-1]
+
+        # Set the url of the request to the url without any credentials
+        req.url = urllib_parse.urlunparse(parsed[:1] + (netloc,) + parsed[2:])
+
+        # Use any stored credentials that we have for this netloc
+        username, password = self.passwords.get(netloc, (None, None))
+
+        # Extract credentials embedded in the url if we have none stored
+        if username is None:
+            username, password = self.parse_credentials(parsed.netloc)
+
+        # Get creds from netrc if we still don't have them
+        if username is None and password is None:
+            netrc_auth = get_netrc_auth(req.url)
+            username, password = netrc_auth if netrc_auth else (None, None)
+
+        if username or password:
+            # Store the username and password
+            self.passwords[netloc] = (username, password)
+
+            # Send the basic auth with this request
+            req = HTTPBasicAuth(username or "", password or "")(req)
+
+        # Attach a hook to handle 401 responses
+        req.register_hook("response", self.handle_401)
+
+        return req
+
+    def handle_401(self, resp, **kwargs):
+        # We only care about 401 responses, anything else we want to just
+        #   pass through the actual response
+        if resp.status_code != 401:
+            return resp
+
+        # We are not able to prompt the user so simply return the response
+        if not self.prompting:
+            return resp
+
+        parsed = urllib_parse.urlparse(resp.url)
+
+        # Prompt the user for a new username and password
+        username = six.moves.input("User for %s: " % parsed.netloc)
+        password = getpass.getpass("Password: ")
+
+        # Store the new username and password to use for future requests
+        if username or password:
+            self.passwords[parsed.netloc] = (username, password)
+
+        # Consume content and release the original connection to allow our new
+        #   request to reuse the same one.
+        resp.content
+        resp.raw.release_conn()
+
+        # Add our new username and password to the request
+        req = HTTPBasicAuth(username or "", password or "")(resp.request)
+
+        # Send our new request
+        new_resp = resp.connection.send(req, **kwargs)
+        new_resp.history.append(resp)
+
+        return new_resp
+
+    def parse_credentials(self, netloc):
+        if "@" in netloc:
+            userinfo = netloc.rsplit("@", 1)[0]
+            if ":" in userinfo:
+                return userinfo.split(":", 1)
+            return userinfo, None
+        return None, None
+
+
+class LocalFSAdapter(BaseAdapter):
+
+    def send(self, request, stream=None, timeout=None, verify=None, cert=None,
+             proxies=None):
+        pathname = url_to_path(request.url)
+
+        resp = Response()
+        resp.status_code = 200
+        resp.url = request.url
+
+        try:
+            stats = os.stat(pathname)
+        except OSError as exc:
+            resp.status_code = 404
+            resp.raw = exc
+        else:
+            modified = email.utils.formatdate(stats.st_mtime, usegmt=True)
+            content_type = mimetypes.guess_type(pathname)[0] or "text/plain"
+            resp.headers = CaseInsensitiveDict({
+                "Content-Type": content_type,
+                "Content-Length": stats.st_size,
+                "Last-Modified": modified,
+            })
+
+            resp.raw = open(pathname, "rb")
+            resp.close = resp.raw.close
+
+        return resp
+
+    def close(self):
+        pass
+
+
+class SafeFileCache(FileCache):
+    """
+    A file based cache which is safe to use even when the target directory may
+    not be accessible or writable.
+    """
+
+    def __init__(self, *args, **kwargs):
+        super(SafeFileCache, self).__init__(*args, **kwargs)
+
+        # Check to ensure that the directory containing our cache directory
+        # is owned by the user current executing pip. If it does not exist
+        # we will check the parent directory until we find one that does exist.
+        # If it is not owned by the user executing pip then we will disable
+        # the cache and log a warning.
+        if not check_path_owner(self.directory):
+            logger.warning(
+                "The directory '%s' or its parent directory is not owned by "
+                "the current user and the cache has been disabled. Please "
+                "check the permissions and owner of that directory. If "
+                "executing pip with sudo, you may want sudo's -H flag.",
+                self.directory,
+            )
+
+            # Set our directory to None to disable the Cache
+            self.directory = None
+
+    def get(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).get(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def set(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).set(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+    def delete(self, *args, **kwargs):
+        # If we don't have a directory, then the cache should be a no-op.
+        if self.directory is None:
+            return
+
+        try:
+            return super(SafeFileCache, self).delete(*args, **kwargs)
+        except (LockError, OSError, IOError):
+            # We intentionally silence this error, if we can't access the cache
+            # then we can just skip caching and process the request as if
+            # caching wasn't enabled.
+            pass
+
+
+class InsecureHTTPAdapter(HTTPAdapter):
+
+    def cert_verify(self, conn, url, verify, cert):
+        conn.cert_reqs = 'CERT_NONE'
+        conn.ca_certs = None
+
+
+class PipSession(requests.Session):
+
+    timeout = None
+
+    def __init__(self, *args, **kwargs):
+        retries = kwargs.pop("retries", 0)
+        cache = kwargs.pop("cache", None)
+        insecure_hosts = kwargs.pop("insecure_hosts", [])
+
+        super(PipSession, self).__init__(*args, **kwargs)
+
+        # Attach our User Agent to the request
+        self.headers["User-Agent"] = user_agent()
+
+        # Attach our Authentication handler to the session
+        self.auth = MultiDomainBasicAuth()
+
+        # Create our urllib3.Retry instance which will allow us to customize
+        # how we handle retries.
+        retries = urllib3.Retry(
+            # Set the total number of retries that a particular request can
+            # have.
+            total=retries,
+
+            # A 503 error from PyPI typically means that the Fastly -> Origin
+            # connection got interrupted in some way. A 503 error in general
+            # is typically considered a transient error so we'll go ahead and
+            # retry it.
+            status_forcelist=[503],
+
+            # Add a small amount of back off between failed requests in
+            # order to prevent hammering the service.
+            backoff_factor=0.25,
+        )
+
+        # We want to _only_ cache responses on securely fetched origins. We do
+        # this because we can't validate the response of an insecurely fetched
+        # origin, and we don't want someone to be able to poison the cache and
+        # require manual eviction from the cache to fix it.
+        if cache:
+            secure_adapter = CacheControlAdapter(
+                cache=SafeFileCache(cache, use_dir_lock=True),
+                max_retries=retries,
+            )
+        else:
+            secure_adapter = HTTPAdapter(max_retries=retries)
+
+        # Our Insecure HTTPAdapter disables HTTPS validation. It does not
+        # support caching (see above) so we'll use it for all http:// URLs as
+        # well as any https:// host that we've marked as ignoring TLS errors
+        # for.
+        insecure_adapter = InsecureHTTPAdapter(max_retries=retries)
+
+        self.mount("https://", secure_adapter)
+        self.mount("http://", insecure_adapter)
+
+        # Enable file:// urls
+        self.mount("file://", LocalFSAdapter())
+
+        # We want to use a non-validating adapter for any requests which are
+        # deemed insecure.
+        for host in insecure_hosts:
+            self.mount("https://{0}/".format(host), insecure_adapter)
+
+    def request(self, method, url, *args, **kwargs):
+        # Allow setting a default timeout on a session
+        kwargs.setdefault("timeout", self.timeout)
+
+        # Dispatch the actual request
+        return super(PipSession, self).request(method, url, *args, **kwargs)
+
+
+def get_file_content(url, comes_from=None, session=None):
+    """Gets the content of a file; it may be a filename, file: URL, or
+    http: URL.  Returns (location, content).  Content is unicode."""
+    if session is None:
+        raise TypeError(
+            "get_file_content() missing 1 required keyword argument: 'session'"
+        )
+
+    match = _scheme_re.search(url)
+    if match:
+        scheme = match.group(1).lower()
+        if (scheme == 'file' and comes_from and
+                comes_from.startswith('http')):
+            raise InstallationError(
+                'Requirements file %s references URL %s, which is local'
+                % (comes_from, url))
+        if scheme == 'file':
+            path = url.split(':', 1)[1]
+            path = path.replace('\\', '/')
+            match = _url_slash_drive_re.match(path)
+            if match:
+                path = match.group(1) + ':' + path.split('|', 1)[1]
+            path = urllib_parse.unquote(path)
+            if path.startswith('/'):
+                path = '/' + path.lstrip('/')
+            url = path
+        else:
+            # FIXME: catch some errors
+            resp = session.get(url)
+            resp.raise_for_status()
+            return resp.url, resp.text
+    try:
+        with open(url, 'rb') as f:
+            content = auto_decode(f.read())
+    except IOError as exc:
+        raise InstallationError(
+            'Could not open requirements file: %s' % str(exc)
+        )
+    return url, content
+
+
+_scheme_re = re.compile(r'^(http|https|file):', re.I)
+_url_slash_drive_re = re.compile(r'/*([a-z])\|', re.I)
+
+
+def is_url(name):
+    """Returns true if the name looks like a URL"""
+    if ':' not in name:
+        return False
+    scheme = name.split(':', 1)[0].lower()
+    return scheme in ['http', 'https', 'file', 'ftp'] + vcs.all_schemes
+
+
+def url_to_path(url):
+    """
+    Convert a file: URL to a path.
+    """
+    assert url.startswith('file:'), (
+        "You can only turn file: urls into filenames (not %r)" % url)
+
+    _, netloc, path, _, _ = urllib_parse.urlsplit(url)
+
+    # if we have a UNC path, prepend UNC share notation
+    if netloc:
+        netloc = '\\\\' + netloc
+
+    path = urllib_request.url2pathname(netloc + path)
+    return path
+
+
+def path_to_url(path):
+    """
+    Convert a path to a file: URL.  The path will be made absolute and have
+    quoted path parts.
+    """
+    path = os.path.normpath(os.path.abspath(path))
+    url = urllib_parse.urljoin('file:', urllib_request.pathname2url(path))
+    return url
+
+
+def is_archive_file(name):
+    """Return True if `name` is a considered as an archive file."""
+    ext = splitext(name)[1].lower()
+    if ext in ARCHIVE_EXTENSIONS:
+        return True
+    return False
+
+
+def unpack_vcs_link(link, location):
+    vcs_backend = _get_used_vcs_backend(link)
+    vcs_backend.unpack(location)
+
+
+def _get_used_vcs_backend(link):
+    for backend in vcs.backends:
+        if link.scheme in backend.schemes:
+            vcs_backend = backend(link.url)
+            return vcs_backend
+
+
+def is_vcs_url(link):
+    return bool(_get_used_vcs_backend(link))
+
+
+def is_file_url(link):
+    return link.url.lower().startswith('file:')
+
+
+def is_dir_url(link):
+    """Return whether a file:// Link points to a directory.
+
+    ``link`` must not have any other scheme but file://. Call is_file_url()
+    first.
+
+    """
+    link_path = url_to_path(link.url_without_fragment)
+    return os.path.isdir(link_path)
+
+
+def _progress_indicator(iterable, *args, **kwargs):
+    return iterable
+
+
+def _download_url(resp, link, content_file, hashes):
+    try:
+        total_length = int(resp.headers['content-length'])
+    except (ValueError, KeyError, TypeError):
+        total_length = 0
+
+    cached_resp = getattr(resp, "from_cache", False)
+
+    if logger.getEffectiveLevel() > logging.INFO:
+        show_progress = False
+    elif cached_resp:
+        show_progress = False
+    elif total_length > (40 * 1000):
+        show_progress = True
+    elif not total_length:
+        show_progress = True
+    else:
+        show_progress = False
+
+    show_url = link.show_url
+
+    def resp_read(chunk_size):
+        try:
+            # Special case for urllib3.
+            for chunk in resp.raw.stream(
+                    chunk_size,
+                    # We use decode_content=False here because we don't
+                    # want urllib3 to mess with the raw bytes we get
+                    # from the server. If we decompress inside of
+                    # urllib3 then we cannot verify the checksum
+                    # because the checksum will be of the compressed
+                    # file. This breakage will only occur if the
+                    # server adds a Content-Encoding header, which
+                    # depends on how the server was configured:
+                    # - Some servers will notice that the file isn't a
+                    #   compressible file and will leave the file alone
+                    #   and with an empty Content-Encoding
+                    # - Some servers will notice that the file is
+                    #   already compressed and will leave the file
+                    #   alone and will add a Content-Encoding: gzip
+                    #   header
+                    # - Some servers won't notice anything at all and
+                    #   will take a file that's already been compressed
+                    #   and compress it again and set the
+                    #   Content-Encoding: gzip header
+                    #
+                    # By setting this not to decode automatically we
+                    # hope to eliminate problems with the second case.
+                    decode_content=False):
+                yield chunk
+        except AttributeError:
+            # Standard file-like object.
+            while True:
+                chunk = resp.raw.read(chunk_size)
+                if not chunk:
+                    break
+                yield chunk
+
+    def written_chunks(chunks):
+        for chunk in chunks:
+            content_file.write(chunk)
+            yield chunk
+
+    progress_indicator = _progress_indicator
+
+    if link.netloc == PyPI.netloc:
+        url = show_url
+    else:
+        url = link.url_without_fragment
+
+    if show_progress:  # We don't show progress on cached responses
+        if total_length:
+            logger.info("Downloading %s (%s)", url, format_size(total_length))
+            progress_indicator = DownloadProgressBar(max=total_length).iter
+        else:
+            logger.info("Downloading %s", url)
+            progress_indicator = DownloadProgressSpinner().iter
+    elif cached_resp:
+        logger.info("Using cached %s", url)
+    else:
+        logger.info("Downloading %s", url)
+
+    logger.debug('Downloading from URL %s', link)
+
+    downloaded_chunks = written_chunks(
+        progress_indicator(
+            resp_read(CONTENT_CHUNK_SIZE),
+            CONTENT_CHUNK_SIZE
+        )
+    )
+    if hashes:
+        hashes.check_against_chunks(downloaded_chunks)
+    else:
+        consume(downloaded_chunks)
+
+
+def _copy_file(filename, location, link):
+    copy = True
+    download_location = os.path.join(location, link.filename)
+    if os.path.exists(download_location):
+        response = ask_path_exists(
+            'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)abort' %
+            display_path(download_location), ('i', 'w', 'b', 'a'))
+        if response == 'i':
+            copy = False
+        elif response == 'w':
+            logger.warning('Deleting %s', display_path(download_location))
+            os.remove(download_location)
+        elif response == 'b':
+            dest_file = backup_dir(download_location)
+            logger.warning(
+                'Backing up %s to %s',
+                display_path(download_location),
+                display_path(dest_file),
+            )
+            shutil.move(download_location, dest_file)
+        elif response == 'a':
+            sys.exit(-1)
+    if copy:
+        shutil.copy(filename, download_location)
+        logger.info('Saved %s', display_path(download_location))
+
+
+def unpack_http_url(link, location, download_dir=None,
+                    session=None, hashes=None):
+    if session is None:
+        raise TypeError(
+            "unpack_http_url() missing 1 required keyword argument: 'session'"
+        )
+
+    temp_dir = tempfile.mkdtemp('-unpack', 'pip-')
+
+    # If a download dir is specified, is the file already downloaded there?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link,
+                                                      download_dir,
+                                                      hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+        content_type = mimetypes.guess_type(from_path)[0]
+    else:
+        # let's download to a tmp dir
+        from_path, content_type = _download_http_url(link,
+                                                     session,
+                                                     temp_dir,
+                                                     hashes)
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies
+    unpack_file(from_path, location, content_type, link)
+
+    # a download dir is specified; let's copy the archive there
+    if download_dir and not already_downloaded_path:
+        _copy_file(from_path, download_dir, link)
+
+    if not already_downloaded_path:
+        os.unlink(from_path)
+    rmtree(temp_dir)
+
+
+def unpack_file_url(link, location, download_dir=None, hashes=None):
+    """Unpack link into location.
+
+    If download_dir is provided and link points to a file, make a copy
+    of the link file inside download_dir.
+    """
+    link_path = url_to_path(link.url_without_fragment)
+
+    # If it's a url to a local directory
+    if is_dir_url(link):
+        if os.path.isdir(location):
+            rmtree(location)
+        shutil.copytree(link_path, location, symlinks=True)
+        if download_dir:
+            logger.info('Link is a directory, ignoring download_dir')
+        return
+
+    # If --require-hashes is off, `hashes` is either empty, the
+    # link's embedded hash, or MissingHashes; it is required to
+    # match. If --require-hashes is on, we are satisfied by any
+    # hash in `hashes` matching: a URL-based or an option-based
+    # one; no internet-sourced hash will be in `hashes`.
+    if hashes:
+        hashes.check_against_path(link_path)
+
+    # If a download dir is specified, is the file already there and valid?
+    already_downloaded_path = None
+    if download_dir:
+        already_downloaded_path = _check_download_dir(link,
+                                                      download_dir,
+                                                      hashes)
+
+    if already_downloaded_path:
+        from_path = already_downloaded_path
+    else:
+        from_path = link_path
+
+    content_type = mimetypes.guess_type(from_path)[0]
+
+    # unpack the archive to the build dir location. even when only downloading
+    # archives, they have to be unpacked to parse dependencies
+    unpack_file(from_path, location, content_type, link)
+
+    # a download dir is specified and not already downloaded
+    if download_dir and not already_downloaded_path:
+        _copy_file(from_path, download_dir, link)
+
+
+def _copy_dist_from_dir(link_path, location):
+    """Copy distribution files in `link_path` to `location`.
+
+    Invoked when user requests to install a local directory. E.g.:
+
+        pip install .
+        pip install ~/dev/git-repos/python-prompt-toolkit
+
+    """
+
+    # Note: This is currently VERY SLOW if you have a lot of data in the
+    # directory, because it copies everything with `shutil.copytree`.
+    # What it should really do is build an sdist and install that.
+    # See https://github.com/pypa/pip/issues/2195
+
+    if os.path.isdir(location):
+        rmtree(location)
+
+    # build an sdist
+    setup_py = 'setup.py'
+    sdist_args = [sys.executable]
+    sdist_args.append('-c')
+    sdist_args.append(SETUPTOOLS_SHIM % setup_py)
+    sdist_args.append('sdist')
+    sdist_args += ['--dist-dir', location]
+    logger.info('Running setup.py sdist for %s', link_path)
+
+    with indent_log():
+        call_subprocess(sdist_args, cwd=link_path, show_stdout=False)
+
+    # unpack sdist into `location`
+    sdist = os.path.join(location, os.listdir(location)[0])
+    logger.info('Unpacking sdist %s into %s', sdist, location)
+    unpack_file(sdist, location, content_type=None, link=None)
+
+
+class PipXmlrpcTransport(xmlrpc_client.Transport):
+    """Provide a `xmlrpclib.Transport` implementation via a `PipSession`
+    object.
+    """
+
+    def __init__(self, index_url, session, use_datetime=False):
+        xmlrpc_client.Transport.__init__(self, use_datetime)
+        index_parts = urllib_parse.urlparse(index_url)
+        self._scheme = index_parts.scheme
+        self._session = session
+
+    def request(self, host, handler, request_body, verbose=False):
+        parts = (self._scheme, host, handler, None, None, None)
+        url = urllib_parse.urlunparse(parts)
+        try:
+            headers = {'Content-Type': 'text/xml'}
+            response = self._session.post(url, data=request_body,
+                                          headers=headers, stream=True)
+            response.raise_for_status()
+            self.verbose = verbose
+            return self.parse_response(response.raw)
+        except requests.HTTPError as exc:
+            logger.critical(
+                "HTTP error %s while getting %s",
+                exc.response.status_code, url,
+            )
+            raise
+
+
+def unpack_url(link, location, download_dir=None,
+               only_download=False, session=None, hashes=None):
+    """Unpack link.
+       If link is a VCS link:
+         if only_download, export into download_dir and ignore location
+          else unpack into location
+       for other types of link:
+         - unpack into location
+         - if download_dir, copy the file into download_dir
+         - if only_download, mark location for deletion
+
+    :param hashes: A Hashes object, one of whose embedded hashes must match,
+        or HashMismatch will be raised. If the Hashes is empty, no matches are
+        required, and unhashable types of requirements (like VCS ones, which
+        would ordinarily raise HashUnsupported) are allowed.
+    """
+    # non-editable vcs urls
+    if is_vcs_url(link):
+        unpack_vcs_link(link, location)
+
+    # file urls
+    elif is_file_url(link):
+        unpack_file_url(link, location, download_dir, hashes=hashes)
+
+    # http urls
+    else:
+        if session is None:
+            session = PipSession()
+
+        unpack_http_url(
+            link,
+            location,
+            download_dir,
+            session,
+            hashes=hashes
+        )
+    if only_download:
+        write_delete_marker_file(location)
+
+
+def _download_http_url(link, session, temp_dir, hashes):
+    """Download link url into temp_dir using provided session"""
+    target_url = link.url.split('#', 1)[0]
+    try:
+        resp = session.get(
+            target_url,
+            # We use Accept-Encoding: identity here because requests
+            # defaults to accepting compressed responses. This breaks in
+            # a variety of ways depending on how the server is configured.
+            # - Some servers will notice that the file isn't a compressible
+            #   file and will leave the file alone and with an empty
+            #   Content-Encoding
+            # - Some servers will notice that the file is already
+            #   compressed and will leave the file alone and will add a
+            #   Content-Encoding: gzip header
+            # - Some servers won't notice anything at all and will take
+            #   a file that's already been compressed and compress it again
+            #   and set the Content-Encoding: gzip header
+            # By setting this to request only the identity encoding We're
+            # hoping to eliminate the third case. Hopefully there does not
+            # exist a server which when given a file will notice it is
+            # already compressed and that you're not asking for a
+            # compressed file and will then decompress it before sending
+            # because if that's the case I don't think it'll ever be
+            # possible to make this work.
+            headers={"Accept-Encoding": "identity"},
+            stream=True,
+        )
+        resp.raise_for_status()
+    except requests.HTTPError as exc:
+        logger.critical(
+            "HTTP error %s while getting %s", exc.response.status_code, link,
+        )
+        raise
+
+    content_type = resp.headers.get('content-type', '')
+    filename = link.filename  # fallback
+    # Have a look at the Content-Disposition header for a better guess
+    content_disposition = resp.headers.get('content-disposition')
+    if content_disposition:
+        type, params = cgi.parse_header(content_disposition)
+        # We use ``or`` here because we don't want to use an "empty" value
+        # from the filename param.
+        filename = params.get('filename') or filename
+    ext = splitext(filename)[1]
+    if not ext:
+        ext = mimetypes.guess_extension(content_type)
+        if ext:
+            filename += ext
+    if not ext and link.url != resp.url:
+        ext = os.path.splitext(resp.url)[1]
+        if ext:
+            filename += ext
+    file_path = os.path.join(temp_dir, filename)
+    with open(file_path, 'wb') as content_file:
+        _download_url(resp, link, content_file, hashes)
+    return file_path, content_type
+
+
+def _check_download_dir(link, download_dir, hashes):
+    """ Check download_dir for previously downloaded file with correct hash
+        If a correct file is found return its path else None
+    """
+    download_path = os.path.join(download_dir, link.filename)
+    if os.path.exists(download_path):
+        # If already downloaded, does its hash match?
+        logger.info('File was already downloaded %s', download_path)
+        if hashes:
+            try:
+                hashes.check_against_path(download_path)
+            except HashMismatch:
+                logger.warning(
+                    'Previously-downloaded file %s has bad hash. '
+                    'Re-downloading.',
+                    download_path
+                )
+                os.unlink(download_path)
+                return None
+        return download_path
+    return None
diff --git a/venv1/lib/python3.5/site-packages/pip/exceptions.py b/venv1/lib/python3.5/site-packages/pip/exceptions.py
new file mode 100644
index 0000000..50b527f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/exceptions.py
@@ -0,0 +1,244 @@
+"""Exceptions used throughout package"""
+from __future__ import absolute_import
+
+from itertools import chain, groupby, repeat
+
+from pip._vendor.six import iteritems
+
+
+class PipError(Exception):
+    """Base pip exception"""
+
+
+class InstallationError(PipError):
+    """General exception during installation"""
+
+
+class UninstallationError(PipError):
+    """General exception during uninstallation"""
+
+
+class DistributionNotFound(InstallationError):
+    """Raised when a distribution cannot be found to satisfy a requirement"""
+
+
+class RequirementsFileParseError(InstallationError):
+    """Raised when a general error occurs parsing a requirements file line."""
+
+
+class BestVersionAlreadyInstalled(PipError):
+    """Raised when the most up-to-date version of a package is already
+    installed."""
+
+
+class BadCommand(PipError):
+    """Raised when virtualenv or a command is not found"""
+
+
+class CommandError(PipError):
+    """Raised when there is an error in command-line arguments"""
+
+
+class PreviousBuildDirError(PipError):
+    """Raised when there's a previous conflicting build directory"""
+
+
+class InvalidWheelFilename(InstallationError):
+    """Invalid wheel filename."""
+
+
+class UnsupportedWheel(InstallationError):
+    """Unsupported wheel."""
+
+
+class HashErrors(InstallationError):
+    """Multiple HashError instances rolled into one for reporting"""
+
+    def __init__(self):
+        self.errors = []
+
+    def append(self, error):
+        self.errors.append(error)
+
+    def __str__(self):
+        lines = []
+        self.errors.sort(key=lambda e: e.order)
+        for cls, errors_of_cls in groupby(self.errors, lambda e: e.__class__):
+            lines.append(cls.head)
+            lines.extend(e.body() for e in errors_of_cls)
+        if lines:
+            return '\n'.join(lines)
+
+    def __nonzero__(self):
+        return bool(self.errors)
+
+    def __bool__(self):
+        return self.__nonzero__()
+
+
+class HashError(InstallationError):
+    """
+    A failure to verify a package against known-good hashes
+
+    :cvar order: An int sorting hash exception classes by difficulty of
+        recovery (lower being harder), so the user doesn't bother fretting
+        about unpinned packages when he has deeper issues, like VCS
+        dependencies, to deal with. Also keeps error reports in a
+        deterministic order.
+    :cvar head: A section heading for display above potentially many
+        exceptions of this kind
+    :ivar req: The InstallRequirement that triggered this error. This is
+        pasted on after the exception is instantiated, because it's not
+        typically available earlier.
+
+    """
+    req = None
+    head = ''
+
+    def body(self):
+        """Return a summary of me for display under the heading.
+
+        This default implementation simply prints a description of the
+        triggering requirement.
+
+        :param req: The InstallRequirement that provoked this error, with
+            populate_link() having already been called
+
+        """
+        return '    %s' % self._requirement_name()
+
+    def __str__(self):
+        return '%s\n%s' % (self.head, self.body())
+
+    def _requirement_name(self):
+        """Return a description of the requirement that triggered me.
+
+        This default implementation returns long description of the req, with
+        line numbers
+
+        """
+        return str(self.req) if self.req else 'unknown package'
+
+
+class VcsHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 0
+    head = ("Can't verify hashes for these requirements because we don't "
+            "have a way to hash version control repositories:")
+
+
+class DirectoryUrlHashUnsupported(HashError):
+    """A hash was provided for a version-control-system-based requirement, but
+    we don't have a method for hashing those."""
+
+    order = 1
+    head = ("Can't verify hashes for these file:// requirements because they "
+            "point to directories:")
+
+
+class HashMissing(HashError):
+    """A hash was needed for a requirement but is absent."""
+
+    order = 2
+    head = ('Hashes are required in --require-hashes mode, but they are '
+            'missing from some requirements. Here is a list of those '
+            'requirements along with the hashes their downloaded archives '
+            'actually had. Add lines like these to your requirements files to '
+            'prevent tampering. (If you did not enable --require-hashes '
+            'manually, note that it turns on automatically when any package '
+            'has a hash.)')
+
+    def __init__(self, gotten_hash):
+        """
+        :param gotten_hash: The hash of the (possibly malicious) archive we
+            just downloaded
+        """
+        self.gotten_hash = gotten_hash
+
+    def body(self):
+        from pip.utils.hashes import FAVORITE_HASH  # Dodge circular import.
+
+        package = None
+        if self.req:
+            # In the case of URL-based requirements, display the original URL
+            # seen in the requirements file rather than the package name,
+            # so the output can be directly copied into the requirements file.
+            package = (self.req.original_link if self.req.original_link
+                       # In case someone feeds something downright stupid
+                       # to InstallRequirement's constructor.
+                       else getattr(self.req, 'req', None))
+        return '    %s --hash=%s:%s' % (package or 'unknown package',
+                                        FAVORITE_HASH,
+                                        self.gotten_hash)
+
+
+class HashUnpinned(HashError):
+    """A requirement had a hash specified but was not pinned to a specific
+    version."""
+
+    order = 3
+    head = ('In --require-hashes mode, all requirements must have their '
+            'versions pinned with ==. These do not:')
+
+
+class HashMismatch(HashError):
+    """
+    Distribution file hash values don't match.
+
+    :ivar package_name: The name of the package that triggered the hash
+        mismatch. Feel free to write to this after the exception is raise to
+        improve its error message.
+
+    """
+    order = 4
+    head = ('THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS '
+            'FILE. If you have updated the package versions, please update '
+            'the hashes. Otherwise, examine the package contents carefully; '
+            'someone may have tampered with them.')
+
+    def __init__(self, allowed, gots):
+        """
+        :param allowed: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        :param gots: A dict of algorithm names pointing to hashes we
+            actually got from the files under suspicion
+        """
+        self.allowed = allowed
+        self.gots = gots
+
+    def body(self):
+        return '    %s:\n%s' % (self._requirement_name(),
+                                self._hash_comparison())
+
+    def _hash_comparison(self):
+        """
+        Return a comparison of actual and expected hash values.
+
+        Example::
+
+               Expected sha256 abcdeabcdeabcdeabcdeabcdeabcdeabcdeabcdeabcde
+                            or 123451234512345123451234512345123451234512345
+                    Got        bcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdefbcdef
+
+        """
+        def hash_then_or(hash_name):
+            # For now, all the decent hashes have 6-char names, so we can get
+            # away with hard-coding space literals.
+            return chain([hash_name], repeat('    or'))
+
+        lines = []
+        for hash_name, expecteds in iteritems(self.allowed):
+            prefix = hash_then_or(hash_name)
+            lines.extend(('        Expected %s %s' % (next(prefix), e))
+                         for e in expecteds)
+            lines.append('             Got        %s\n' %
+                         self.gots[hash_name].hexdigest())
+            prefix = '    or'
+        return '\n'.join(lines)
+
+
+class UnsupportedPythonVersion(InstallationError):
+    """Unsupported python version according to Requires-Python package
+    metadata."""
diff --git a/venv1/lib/python3.5/site-packages/pip/index.py b/venv1/lib/python3.5/site-packages/pip/index.py
new file mode 100644
index 0000000..f653f6e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/index.py
@@ -0,0 +1,1102 @@
+"""Routines related to PyPI, indexes"""
+from __future__ import absolute_import
+
+import logging
+import cgi
+from collections import namedtuple
+import itertools
+import sys
+import os
+import re
+import mimetypes
+import posixpath
+import warnings
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+
+from pip.compat import ipaddress
+from pip.utils import (
+    cached_property, splitext, normalize_path,
+    ARCHIVE_EXTENSIONS, SUPPORTED_EXTENSIONS,
+)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.logging import indent_log
+from pip.utils.packaging import check_requires_python
+from pip.exceptions import (
+    DistributionNotFound, BestVersionAlreadyInstalled, InvalidWheelFilename,
+    UnsupportedWheel,
+)
+from pip.download import HAS_TLS, is_url, path_to_url, url_to_path
+from pip.wheel import Wheel, wheel_ext
+from pip.pep425tags import get_supported
+from pip._vendor import html5lib, requests, six
+from pip._vendor.packaging.version import parse as parse_version
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging import specifiers
+from pip._vendor.requests.exceptions import SSLError
+from pip._vendor.distlib.compat import unescape
+
+
+__all__ = ['FormatControl', 'fmt_ctl_handle_mutual_exclude', 'PackageFinder']
+
+
+SECURE_ORIGINS = [
+    # protocol, hostname, port
+    # Taken from Chrome's list of secure origins (See: http://bit.ly/1qrySKC)
+    ("https", "*", "*"),
+    ("*", "localhost", "*"),
+    ("*", "127.0.0.0/8", "*"),
+    ("*", "::1/128", "*"),
+    ("file", "*", None),
+    # ssh is always secure.
+    ("ssh", "*", "*"),
+]
+
+
+logger = logging.getLogger(__name__)
+
+
+class InstallationCandidate(object):
+
+    def __init__(self, project, version, location):
+        self.project = project
+        self.version = parse_version(version)
+        self.location = location
+        self._key = (self.project, self.version, self.location)
+
+    def __repr__(self):
+        return "<InstallationCandidate({0!r}, {1!r}, {2!r})>".format(
+            self.project, self.version, self.location,
+        )
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, InstallationCandidate):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class PackageFinder(object):
+    """This finds packages.
+
+    This is meant to match easy_install's technique for looking for
+    packages, by reading pages and looking for appropriate links.
+    """
+
+    def __init__(self, find_links, index_urls, allow_all_prereleases=False,
+                 trusted_hosts=None, process_dependency_links=False,
+                 session=None, format_control=None, platform=None,
+                 versions=None, abi=None, implementation=None):
+        """Create a PackageFinder.
+
+        :param format_control: A FormatControl object or None. Used to control
+            the selection of source packages / binary packages when consulting
+            the index and links.
+        :param platform: A string or None. If None, searches for packages
+            that are supported by the current system. Otherwise, will find
+            packages that can be built on the platform passed in. These
+            packages will only be downloaded for distribution: they will
+            not be built locally.
+        :param versions: A list of strings or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param abi: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        :param implementation: A string or None. This is passed directly
+            to pep425tags.py in the get_supported() method.
+        """
+        if session is None:
+            raise TypeError(
+                "PackageFinder() missing 1 required keyword argument: "
+                "'session'"
+            )
+
+        # Build find_links. If an argument starts with ~, it may be
+        # a local file relative to a home directory. So try normalizing
+        # it and if it exists, use the normalized version.
+        # This is deliberately conservative - it might be fine just to
+        # blindly normalize anything starting with a ~...
+        self.find_links = []
+        for link in find_links:
+            if link.startswith('~'):
+                new_link = normalize_path(link)
+                if os.path.exists(new_link):
+                    link = new_link
+            self.find_links.append(link)
+
+        self.index_urls = index_urls
+        self.dependency_links = []
+
+        # These are boring links that have already been logged somehow:
+        self.logged_links = set()
+
+        self.format_control = format_control or FormatControl(set(), set())
+
+        # Domains that we won't emit warnings for when not using HTTPS
+        self.secure_origins = [
+            ("*", host, "*")
+            for host in (trusted_hosts if trusted_hosts else [])
+        ]
+
+        # Do we want to allow _all_ pre-releases?
+        self.allow_all_prereleases = allow_all_prereleases
+
+        # Do we process dependency links?
+        self.process_dependency_links = process_dependency_links
+
+        # The Session we'll use to make requests
+        self.session = session
+
+        # The valid tags to check potential found wheel candidates against
+        self.valid_tags = get_supported(
+            versions=versions,
+            platform=platform,
+            abi=abi,
+            impl=implementation,
+        )
+
+        # If we don't have TLS enabled, then WARN if anyplace we're looking
+        # relies on TLS.
+        if not HAS_TLS:
+            for link in itertools.chain(self.index_urls, self.find_links):
+                parsed = urllib_parse.urlparse(link)
+                if parsed.scheme == "https":
+                    logger.warning(
+                        "pip is configured with locations that require "
+                        "TLS/SSL, however the ssl module in Python is not "
+                        "available."
+                    )
+                    break
+
+    def add_dependency_links(self, links):
+        # # FIXME: this shouldn't be global list this, it should only
+        # # apply to requirements of the package that specifies the
+        # # dependency_links value
+        # # FIXME: also, we should track comes_from (i.e., use Link)
+        if self.process_dependency_links:
+            warnings.warn(
+                "Dependency Links processing has been deprecated and will be "
+                "removed in a future release.",
+                RemovedInPip10Warning,
+            )
+            self.dependency_links.extend(links)
+
+    @staticmethod
+    def _sort_locations(locations, expand_dir=False):
+        """
+        Sort locations into "files" (archives) and "urls", and return
+        a pair of lists (files,urls)
+        """
+        files = []
+        urls = []
+
+        # puts the url for the given file path into the appropriate list
+        def sort_path(path):
+            url = path_to_url(path)
+            if mimetypes.guess_type(url, strict=False)[0] == 'text/html':
+                urls.append(url)
+            else:
+                files.append(url)
+
+        for url in locations:
+
+            is_local_path = os.path.exists(url)
+            is_file_url = url.startswith('file:')
+
+            if is_local_path or is_file_url:
+                if is_local_path:
+                    path = url
+                else:
+                    path = url_to_path(url)
+                if os.path.isdir(path):
+                    if expand_dir:
+                        path = os.path.realpath(path)
+                        for item in os.listdir(path):
+                            sort_path(os.path.join(path, item))
+                    elif is_file_url:
+                        urls.append(url)
+                elif os.path.isfile(path):
+                    sort_path(path)
+                else:
+                    logger.warning(
+                        "Url '%s' is ignored: it is neither a file "
+                        "nor a directory.", url)
+            elif is_url(url):
+                # Only add url with clear scheme
+                urls.append(url)
+            else:
+                logger.warning(
+                    "Url '%s' is ignored. It is either a non-existing "
+                    "path or lacks a specific scheme.", url)
+
+        return files, urls
+
+    def _candidate_sort_key(self, candidate):
+        """
+        Function used to generate link sort key for link tuples.
+        The greater the return value, the more preferred it is.
+        If not finding wheels, then sorted by version only.
+        If finding wheels, then the sort order is by version, then:
+          1. existing installs
+          2. wheels ordered via Wheel.support_index_min(self.valid_tags)
+          3. source archives
+        Note: it was considered to embed this logic into the Link
+              comparison operators, but then different sdist links
+              with the same version, would have to be considered equal
+        """
+        support_num = len(self.valid_tags)
+        if candidate.location.is_wheel:
+            # can raise InvalidWheelFilename
+            wheel = Wheel(candidate.location.filename)
+            if not wheel.supported(self.valid_tags):
+                raise UnsupportedWheel(
+                    "%s is not a supported wheel for this platform. It "
+                    "can't be sorted." % wheel.filename
+                )
+            pri = -(wheel.support_index_min(self.valid_tags))
+        else:  # sdist
+            pri = -(support_num)
+        return (candidate.version, pri)
+
+    def _validate_secure_origin(self, logger, location):
+        # Determine if this url used a secure transport mechanism
+        parsed = urllib_parse.urlparse(str(location))
+        origin = (parsed.scheme, parsed.hostname, parsed.port)
+
+        # The protocol to use to see if the protocol matches.
+        # Don't count the repository type as part of the protocol: in
+        # cases such as "git+ssh", only use "ssh". (I.e., Only verify against
+        # the last scheme.)
+        protocol = origin[0].rsplit('+', 1)[-1]
+
+        # Determine if our origin is a secure origin by looking through our
+        # hardcoded list of secure origins, as well as any additional ones
+        # configured on this PackageFinder instance.
+        for secure_origin in (SECURE_ORIGINS + self.secure_origins):
+            if protocol != secure_origin[0] and secure_origin[0] != "*":
+                continue
+
+            try:
+                # We need to do this decode dance to ensure that we have a
+                # unicode object, even on Python 2.x.
+                addr = ipaddress.ip_address(
+                    origin[1]
+                    if (
+                        isinstance(origin[1], six.text_type) or
+                        origin[1] is None
+                    )
+                    else origin[1].decode("utf8")
+                )
+                network = ipaddress.ip_network(
+                    secure_origin[1]
+                    if isinstance(secure_origin[1], six.text_type)
+                    else secure_origin[1].decode("utf8")
+                )
+            except ValueError:
+                # We don't have both a valid address or a valid network, so
+                # we'll check this origin against hostnames.
+                if (origin[1] and
+                        origin[1].lower() != secure_origin[1].lower() and
+                        secure_origin[1] != "*"):
+                    continue
+            else:
+                # We have a valid address and network, so see if the address
+                # is contained within the network.
+                if addr not in network:
+                    continue
+
+            # Check to see if the port patches
+            if (origin[2] != secure_origin[2] and
+                    secure_origin[2] != "*" and
+                    secure_origin[2] is not None):
+                continue
+
+            # If we've gotten here, then this origin matches the current
+            # secure origin and we should return True
+            return True
+
+        # If we've gotten to this point, then the origin isn't secure and we
+        # will not accept it as a valid location to search. We will however
+        # log a warning that we are ignoring it.
+        logger.warning(
+            "The repository located at %s is not a trusted or secure host and "
+            "is being ignored. If this repository is available via HTTPS it "
+            "is recommended to use HTTPS instead, otherwise you may silence "
+            "this warning and allow it anyways with '--trusted-host %s'.",
+            parsed.hostname,
+            parsed.hostname,
+        )
+
+        return False
+
+    def _get_index_urls_locations(self, project_name):
+        """Returns the locations found via self.index_urls
+
+        Checks the url_name on the main (first in the list) index and
+        use this url_name to produce all locations
+        """
+
+        def mkurl_pypi_url(url):
+            loc = posixpath.join(
+                url,
+                urllib_parse.quote(canonicalize_name(project_name)))
+            # For maximum compatibility with easy_install, ensure the path
+            # ends in a trailing slash.  Although this isn't in the spec
+            # (and PyPI can handle it without the slash) some other index
+            # implementations might break if they relied on easy_install's
+            # behavior.
+            if not loc.endswith('/'):
+                loc = loc + '/'
+            return loc
+
+        return [mkurl_pypi_url(url) for url in self.index_urls]
+
+    def find_all_candidates(self, project_name):
+        """Find all available InstallationCandidate for project_name
+
+        This checks index_urls, find_links and dependency_links.
+        All versions found are returned as an InstallationCandidate list.
+
+        See _link_package_versions for details on which files are accepted
+        """
+        index_locations = self._get_index_urls_locations(project_name)
+        index_file_loc, index_url_loc = self._sort_locations(index_locations)
+        fl_file_loc, fl_url_loc = self._sort_locations(
+            self.find_links, expand_dir=True)
+        dep_file_loc, dep_url_loc = self._sort_locations(self.dependency_links)
+
+        file_locations = (
+            Link(url) for url in itertools.chain(
+                index_file_loc, fl_file_loc, dep_file_loc)
+        )
+
+        # We trust every url that the user has given us whether it was given
+        #   via --index-url or --find-links
+        # We explicitly do not trust links that came from dependency_links
+        # We want to filter out any thing which does not have a secure origin.
+        url_locations = [
+            link for link in itertools.chain(
+                (Link(url) for url in index_url_loc),
+                (Link(url) for url in fl_url_loc),
+                (Link(url) for url in dep_url_loc),
+            )
+            if self._validate_secure_origin(logger, link)
+        ]
+
+        logger.debug('%d location(s) to search for versions of %s:',
+                     len(url_locations), project_name)
+
+        for location in url_locations:
+            logger.debug('* %s', location)
+
+        canonical_name = canonicalize_name(project_name)
+        formats = fmt_ctl_formats(self.format_control, canonical_name)
+        search = Search(project_name, canonical_name, formats)
+        find_links_versions = self._package_versions(
+            # We trust every directly linked archive in find_links
+            (Link(url, '-f') for url in self.find_links),
+            search
+        )
+
+        page_versions = []
+        for page in self._get_pages(url_locations, project_name):
+            logger.debug('Analyzing links from page %s', page.url)
+            with indent_log():
+                page_versions.extend(
+                    self._package_versions(page.links, search)
+                )
+
+        dependency_versions = self._package_versions(
+            (Link(url) for url in self.dependency_links), search
+        )
+        if dependency_versions:
+            logger.debug(
+                'dependency_links found: %s',
+                ', '.join([
+                    version.location.url for version in dependency_versions
+                ])
+            )
+
+        file_versions = self._package_versions(file_locations, search)
+        if file_versions:
+            file_versions.sort(reverse=True)
+            logger.debug(
+                'Local files found: %s',
+                ', '.join([
+                    url_to_path(candidate.location.url)
+                    for candidate in file_versions
+                ])
+            )
+
+        # This is an intentional priority ordering
+        return (
+            file_versions + find_links_versions + page_versions +
+            dependency_versions
+        )
+
+    def find_requirement(self, req, upgrade):
+        """Try to find a Link matching req
+
+        Expects req, an InstallRequirement and upgrade, a boolean
+        Returns a Link if found,
+        Raises DistributionNotFound or BestVersionAlreadyInstalled otherwise
+        """
+        all_candidates = self.find_all_candidates(req.name)
+
+        # Filter out anything which doesn't match our specifier
+        compatible_versions = set(
+            req.specifier.filter(
+                # We turn the version object into a str here because otherwise
+                # when we're debundled but setuptools isn't, Python will see
+                # packaging.version.Version and
+                # pkg_resources._vendor.packaging.version.Version as different
+                # types. This way we'll use a str as a common data interchange
+                # format. If we stop using the pkg_resources provided specifier
+                # and start using our own, we can drop the cast to str().
+                [str(c.version) for c in all_candidates],
+                prereleases=(
+                    self.allow_all_prereleases
+                    if self.allow_all_prereleases else None
+                ),
+            )
+        )
+        applicable_candidates = [
+            # Again, converting to str to deal with debundling.
+            c for c in all_candidates if str(c.version) in compatible_versions
+        ]
+
+        if applicable_candidates:
+            best_candidate = max(applicable_candidates,
+                                 key=self._candidate_sort_key)
+        else:
+            best_candidate = None
+
+        if req.satisfied_by is not None:
+            installed_version = parse_version(req.satisfied_by.version)
+        else:
+            installed_version = None
+
+        if installed_version is None and best_candidate is None:
+            logger.critical(
+                'Could not find a version that satisfies the requirement %s '
+                '(from versions: %s)',
+                req,
+                ', '.join(
+                    sorted(
+                        set(str(c.version) for c in all_candidates),
+                        key=parse_version,
+                    )
+                )
+            )
+
+            raise DistributionNotFound(
+                'No matching distribution found for %s' % req
+            )
+
+        best_installed = False
+        if installed_version and (
+                best_candidate is None or
+                best_candidate.version <= installed_version):
+            best_installed = True
+
+        if not upgrade and installed_version is not None:
+            if best_installed:
+                logger.debug(
+                    'Existing installed version (%s) is most up-to-date and '
+                    'satisfies requirement',
+                    installed_version,
+                )
+            else:
+                logger.debug(
+                    'Existing installed version (%s) satisfies requirement '
+                    '(most up-to-date version is %s)',
+                    installed_version,
+                    best_candidate.version,
+                )
+            return None
+
+        if best_installed:
+            # We have an existing version, and its the best version
+            logger.debug(
+                'Installed version (%s) is most up-to-date (past versions: '
+                '%s)',
+                installed_version,
+                ', '.join(sorted(compatible_versions, key=parse_version)) or
+                "none",
+            )
+            raise BestVersionAlreadyInstalled
+
+        logger.debug(
+            'Using version %s (newest of versions: %s)',
+            best_candidate.version,
+            ', '.join(sorted(compatible_versions, key=parse_version))
+        )
+        return best_candidate.location
+
+    def _get_pages(self, locations, project_name):
+        """
+        Yields (page, page_url) from the given locations, skipping
+        locations that have errors.
+        """
+        seen = set()
+        for location in locations:
+            if location in seen:
+                continue
+            seen.add(location)
+
+            page = self._get_page(location)
+            if page is None:
+                continue
+
+            yield page
+
+    _py_version_re = re.compile(r'-py([123]\.?[0-9]?)$')
+
+    def _sort_links(self, links):
+        """
+        Returns elements of links in order, non-egg links first, egg links
+        second, while eliminating duplicates
+        """
+        eggs, no_eggs = [], []
+        seen = set()
+        for link in links:
+            if link not in seen:
+                seen.add(link)
+                if link.egg_fragment:
+                    eggs.append(link)
+                else:
+                    no_eggs.append(link)
+        return no_eggs + eggs
+
+    def _package_versions(self, links, search):
+        result = []
+        for link in self._sort_links(links):
+            v = self._link_package_versions(link, search)
+            if v is not None:
+                result.append(v)
+        return result
+
+    def _log_skipped_link(self, link, reason):
+        if link not in self.logged_links:
+            logger.debug('Skipping link %s; %s', link, reason)
+            self.logged_links.add(link)
+
+    def _link_package_versions(self, link, search):
+        """Return an InstallationCandidate or None"""
+        version = None
+        if link.egg_fragment:
+            egg_info = link.egg_fragment
+            ext = link.ext
+        else:
+            egg_info, ext = link.splitext()
+            if not ext:
+                self._log_skipped_link(link, 'not a file')
+                return
+            if ext not in SUPPORTED_EXTENSIONS:
+                self._log_skipped_link(
+                    link, 'unsupported archive format: %s' % ext)
+                return
+            if "binary" not in search.formats and ext == wheel_ext:
+                self._log_skipped_link(
+                    link, 'No binaries permitted for %s' % search.supplied)
+                return
+            if "macosx10" in link.path and ext == '.zip':
+                self._log_skipped_link(link, 'macosx10 one')
+                return
+            if ext == wheel_ext:
+                try:
+                    wheel = Wheel(link.filename)
+                except InvalidWheelFilename:
+                    self._log_skipped_link(link, 'invalid wheel filename')
+                    return
+                if canonicalize_name(wheel.name) != search.canonical:
+                    self._log_skipped_link(
+                        link, 'wrong project name (not %s)' % search.supplied)
+                    return
+
+                if not wheel.supported(self.valid_tags):
+                    self._log_skipped_link(
+                        link, 'it is not compatible with this Python')
+                    return
+
+                version = wheel.version
+
+        # This should be up by the search.ok_binary check, but see issue 2700.
+        if "source" not in search.formats and ext != wheel_ext:
+            self._log_skipped_link(
+                link, 'No sources permitted for %s' % search.supplied)
+            return
+
+        if not version:
+            version = egg_info_matches(egg_info, search.supplied, link)
+        if version is None:
+            self._log_skipped_link(
+                link, 'wrong project name (not %s)' % search.supplied)
+            return
+
+        match = self._py_version_re.search(version)
+        if match:
+            version = version[:match.start()]
+            py_version = match.group(1)
+            if py_version != sys.version[:3]:
+                self._log_skipped_link(
+                    link, 'Python version is incorrect')
+                return
+        try:
+            support_this_python = check_requires_python(link.requires_python)
+        except specifiers.InvalidSpecifier:
+            logger.debug("Package %s has an invalid Requires-Python entry: %s",
+                         link.filename, link.requires_python)
+            support_this_python = True
+
+        if not support_this_python:
+            logger.debug("The package %s is incompatible with the python"
+                         "version in use. Acceptable python versions are:%s",
+                         link, link.requires_python)
+            return
+        logger.debug('Found link %s, version: %s', link, version)
+
+        return InstallationCandidate(search.supplied, version, link)
+
+    def _get_page(self, link):
+        return HTMLPage.get_page(link, session=self.session)
+
+
+def egg_info_matches(
+        egg_info, search_name, link,
+        _egg_info_re=re.compile(r'([a-z0-9_.]+)-([a-z0-9_.!+-]+)', re.I)):
+    """Pull the version part out of a string.
+
+    :param egg_info: The string to parse. E.g. foo-2.1
+    :param search_name: The name of the package this belongs to. None to
+        infer the name. Note that this cannot unambiguously parse strings
+        like foo-2-2 which might be foo, 2-2 or foo-2, 2.
+    :param link: The link the string came from, for logging on failure.
+    """
+    match = _egg_info_re.search(egg_info)
+    if not match:
+        logger.debug('Could not parse version from link: %s', link)
+        return None
+    if search_name is None:
+        full_match = match.group(0)
+        return full_match[full_match.index('-'):]
+    name = match.group(0).lower()
+    # To match the "safe" name that pkg_resources creates:
+    name = name.replace('_', '-')
+    # project name and version must be separated by a dash
+    look_for = search_name.lower() + "-"
+    if name.startswith(look_for):
+        return match.group(0)[len(look_for):]
+    else:
+        return None
+
+
+class HTMLPage(object):
+    """Represents one page, along with its URL"""
+
+    def __init__(self, content, url, headers=None):
+        # Determine if we have any encoding information in our headers
+        encoding = None
+        if headers and "Content-Type" in headers:
+            content_type, params = cgi.parse_header(headers["Content-Type"])
+
+            if "charset" in params:
+                encoding = params['charset']
+
+        self.content = content
+        self.parsed = html5lib.parse(
+            self.content,
+            transport_encoding=encoding,
+            namespaceHTMLElements=False,
+        )
+        self.url = url
+        self.headers = headers
+
+    def __str__(self):
+        return self.url
+
+    @classmethod
+    def get_page(cls, link, skip_archives=True, session=None):
+        if session is None:
+            raise TypeError(
+                "get_page() missing 1 required keyword argument: 'session'"
+            )
+
+        url = link.url
+        url = url.split('#', 1)[0]
+
+        # Check for VCS schemes that do not support lookup as web pages.
+        from pip.vcs import VcsSupport
+        for scheme in VcsSupport.schemes:
+            if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
+                logger.debug('Cannot look at %s URL %s', scheme, link)
+                return None
+
+        try:
+            if skip_archives:
+                filename = link.filename
+                for bad_ext in ARCHIVE_EXTENSIONS:
+                    if filename.endswith(bad_ext):
+                        content_type = cls._get_content_type(
+                            url, session=session,
+                        )
+                        if content_type.lower().startswith('text/html'):
+                            break
+                        else:
+                            logger.debug(
+                                'Skipping page %s because of Content-Type: %s',
+                                link,
+                                content_type,
+                            )
+                            return
+
+            logger.debug('Getting page %s', url)
+
+            # Tack index.html onto file:// URLs that point to directories
+            (scheme, netloc, path, params, query, fragment) = \
+                urllib_parse.urlparse(url)
+            if (scheme == 'file' and
+                    os.path.isdir(urllib_request.url2pathname(path))):
+                # add trailing slash if not present so urljoin doesn't trim
+                # final segment
+                if not url.endswith('/'):
+                    url += '/'
+                url = urllib_parse.urljoin(url, 'index.html')
+                logger.debug(' file: URL is directory, getting %s', url)
+
+            resp = session.get(
+                url,
+                headers={
+                    "Accept": "text/html",
+                    "Cache-Control": "max-age=600",
+                },
+            )
+            resp.raise_for_status()
+
+            # The check for archives above only works if the url ends with
+            # something that looks like an archive. However that is not a
+            # requirement of an url. Unless we issue a HEAD request on every
+            # url we cannot know ahead of time for sure if something is HTML
+            # or not. However we can check after we've downloaded it.
+            content_type = resp.headers.get('Content-Type', 'unknown')
+            if not content_type.lower().startswith("text/html"):
+                logger.debug(
+                    'Skipping page %s because of Content-Type: %s',
+                    link,
+                    content_type,
+                )
+                return
+
+            inst = cls(resp.content, resp.url, resp.headers)
+        except requests.HTTPError as exc:
+            cls._handle_fail(link, exc, url)
+        except SSLError as exc:
+            reason = ("There was a problem confirming the ssl certificate: "
+                      "%s" % exc)
+            cls._handle_fail(link, reason, url, meth=logger.info)
+        except requests.ConnectionError as exc:
+            cls._handle_fail(link, "connection error: %s" % exc, url)
+        except requests.Timeout:
+            cls._handle_fail(link, "timed out", url)
+        else:
+            return inst
+
+    @staticmethod
+    def _handle_fail(link, reason, url, meth=None):
+        if meth is None:
+            meth = logger.debug
+
+        meth("Could not fetch URL %s: %s - skipping", link, reason)
+
+    @staticmethod
+    def _get_content_type(url, session):
+        """Get the Content-Type of the given url, using a HEAD request"""
+        scheme, netloc, path, query, fragment = urllib_parse.urlsplit(url)
+        if scheme not in ('http', 'https'):
+            # FIXME: some warning or something?
+            # assertion error?
+            return ''
+
+        resp = session.head(url, allow_redirects=True)
+        resp.raise_for_status()
+
+        return resp.headers.get("Content-Type", "")
+
+    @cached_property
+    def base_url(self):
+        bases = [
+            x for x in self.parsed.findall(".//base")
+            if x.get("href") is not None
+        ]
+        if bases and bases[0].get("href"):
+            return bases[0].get("href")
+        else:
+            return self.url
+
+    @property
+    def links(self):
+        """Yields all links in the page"""
+        for anchor in self.parsed.findall(".//a"):
+            if anchor.get("href"):
+                href = anchor.get("href")
+                url = self.clean_link(
+                    urllib_parse.urljoin(self.base_url, href)
+                )
+                pyrequire = anchor.get('data-requires-python')
+                pyrequire = unescape(pyrequire) if pyrequire else None
+                yield Link(url, self, requires_python=pyrequire)
+
+    _clean_re = re.compile(r'[^a-z0-9$&+,/:;=?@.#%_\\|-]', re.I)
+
+    def clean_link(self, url):
+        """Makes sure a link is fully encoded.  That is, if a ' ' shows up in
+        the link, it will be rewritten to %20 (while not over-quoting
+        % or other characters)."""
+        return self._clean_re.sub(
+            lambda match: '%%%2x' % ord(match.group(0)), url)
+
+
+class Link(object):
+
+    def __init__(self, url, comes_from=None, requires_python=None):
+        """
+        Object representing a parsed link from https://pypi.python.org/simple/*
+
+        url:
+            url of the resource pointed to (href of the link)
+        comes_from:
+            instance of HTMLPage where the link was found, or string.
+        requires_python:
+            String containing the `Requires-Python` metadata field, specified
+            in PEP 345. This may be specified by a data-requires-python
+            attribute in the HTML link tag, as described in PEP 503.
+        """
+
+        # url can be a UNC windows share
+        if url.startswith('\\\\'):
+            url = path_to_url(url)
+
+        self.url = url
+        self.comes_from = comes_from
+        self.requires_python = requires_python if requires_python else None
+
+    def __str__(self):
+        if self.requires_python:
+            rp = ' (requires-python:%s)' % self.requires_python
+        else:
+            rp = ''
+        if self.comes_from:
+            return '%s (from %s)%s' % (self.url, self.comes_from, rp)
+        else:
+            return str(self.url)
+
+    def __repr__(self):
+        return '<Link %s>' % self
+
+    def __eq__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url == other.url
+
+    def __ne__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url != other.url
+
+    def __lt__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url < other.url
+
+    def __le__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url <= other.url
+
+    def __gt__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url > other.url
+
+    def __ge__(self, other):
+        if not isinstance(other, Link):
+            return NotImplemented
+        return self.url >= other.url
+
+    def __hash__(self):
+        return hash(self.url)
+
+    @property
+    def filename(self):
+        _, netloc, path, _, _ = urllib_parse.urlsplit(self.url)
+        name = posixpath.basename(path.rstrip('/')) or netloc
+        name = urllib_parse.unquote(name)
+        assert name, ('URL %r produced no filename' % self.url)
+        return name
+
+    @property
+    def scheme(self):
+        return urllib_parse.urlsplit(self.url)[0]
+
+    @property
+    def netloc(self):
+        return urllib_parse.urlsplit(self.url)[1]
+
+    @property
+    def path(self):
+        return urllib_parse.unquote(urllib_parse.urlsplit(self.url)[2])
+
+    def splitext(self):
+        return splitext(posixpath.basename(self.path.rstrip('/')))
+
+    @property
+    def ext(self):
+        return self.splitext()[1]
+
+    @property
+    def url_without_fragment(self):
+        scheme, netloc, path, query, fragment = urllib_parse.urlsplit(self.url)
+        return urllib_parse.urlunsplit((scheme, netloc, path, query, None))
+
+    _egg_fragment_re = re.compile(r'[#&]egg=([^&]*)')
+
+    @property
+    def egg_fragment(self):
+        match = self._egg_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)')
+
+    @property
+    def subdirectory_fragment(self):
+        match = self._subdirectory_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _hash_re = re.compile(
+        r'(sha1|sha224|sha384|sha256|sha512|md5)=([a-f0-9]+)'
+    )
+
+    @property
+    def hash(self):
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(2)
+        return None
+
+    @property
+    def hash_name(self):
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(1)
+        return None
+
+    @property
+    def show_url(self):
+        return posixpath.basename(self.url.split('#', 1)[0].split('?', 1)[0])
+
+    @property
+    def is_wheel(self):
+        return self.ext == wheel_ext
+
+    @property
+    def is_artifact(self):
+        """
+        Determines if this points to an actual artifact (e.g. a tarball) or if
+        it points to an "abstract" thing like a path or a VCS location.
+        """
+        from pip.vcs import vcs
+
+        if self.scheme in vcs.all_schemes:
+            return False
+
+        return True
+
+
+FormatControl = namedtuple('FormatControl', 'no_binary only_binary')
+"""This object has two fields, no_binary and only_binary.
+
+If a field is falsy, it isn't set. If it is {':all:'}, it should match all
+packages except those listed in the other field. Only one field can be set
+to {':all:'} at a time. The rest of the time exact package name matches
+are listed, with any given package only showing up in one field at a time.
+"""
+
+
+def fmt_ctl_handle_mutual_exclude(value, target, other):
+    new = value.split(',')
+    while ':all:' in new:
+        other.clear()
+        target.clear()
+        target.add(':all:')
+        del new[:new.index(':all:') + 1]
+        if ':none:' not in new:
+            # Without a none, we want to discard everything as :all: covers it
+            return
+    for name in new:
+        if name == ':none:':
+            target.clear()
+            continue
+        name = canonicalize_name(name)
+        other.discard(name)
+        target.add(name)
+
+
+def fmt_ctl_formats(fmt_ctl, canonical_name):
+    result = set(["binary", "source"])
+    if canonical_name in fmt_ctl.only_binary:
+        result.discard('source')
+    elif canonical_name in fmt_ctl.no_binary:
+        result.discard('binary')
+    elif ':all:' in fmt_ctl.only_binary:
+        result.discard('source')
+    elif ':all:' in fmt_ctl.no_binary:
+        result.discard('binary')
+    return frozenset(result)
+
+
+def fmt_ctl_no_binary(fmt_ctl):
+    fmt_ctl_handle_mutual_exclude(
+        ':all:', fmt_ctl.no_binary, fmt_ctl.only_binary)
+
+
+def fmt_ctl_no_use_wheel(fmt_ctl):
+    fmt_ctl_no_binary(fmt_ctl)
+    warnings.warn(
+        '--no-use-wheel is deprecated and will be removed in the future. '
+        ' Please use --no-binary :all: instead.', RemovedInPip10Warning,
+        stacklevel=2)
+
+
+Search = namedtuple('Search', 'supplied canonical formats')
+"""Capture key aspects of a search.
+
+:attribute supplied: The user supplied package.
+:attribute canonical: The canonical package name.
+:attribute formats: The formats allowed for this package. Should be a set
+    with 'binary' or 'source' or both in it.
+"""
diff --git a/venv1/lib/python3.5/site-packages/pip/locations.py b/venv1/lib/python3.5/site-packages/pip/locations.py
new file mode 100644
index 0000000..e598ef1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/locations.py
@@ -0,0 +1,182 @@
+"""Locations where we look for configs, install stuff, etc"""
+from __future__ import absolute_import
+
+import os
+import os.path
+import site
+import sys
+
+from distutils import sysconfig
+from distutils.command.install import install, SCHEME_KEYS  # noqa
+
+from pip.compat import WINDOWS, expanduser
+from pip.utils import appdirs
+
+
+# Application Directories
+USER_CACHE_DIR = appdirs.user_cache_dir("pip")
+
+
+DELETE_MARKER_MESSAGE = '''\
+This file is placed here by pip to indicate the source was put
+here by pip.
+
+Once this package is successfully installed this source code will be
+deleted (unless you remove this file).
+'''
+PIP_DELETE_MARKER_FILENAME = 'pip-delete-this-directory.txt'
+
+
+def write_delete_marker_file(directory):
+    """
+    Write the pip delete marker file into this directory.
+    """
+    filepath = os.path.join(directory, PIP_DELETE_MARKER_FILENAME)
+    with open(filepath, 'w') as marker_fp:
+        marker_fp.write(DELETE_MARKER_MESSAGE)
+
+
+def running_under_virtualenv():
+    """
+    Return True if we're running inside a virtualenv, False otherwise.
+
+    """
+    if hasattr(sys, 'real_prefix'):
+        return True
+    elif sys.prefix != getattr(sys, "base_prefix", sys.prefix):
+        return True
+
+    return False
+
+
+def virtualenv_no_global():
+    """
+    Return True if in a venv and no system site packages.
+    """
+    # this mirrors the logic in virtualenv.py for locating the
+    # no-global-site-packages.txt file
+    site_mod_dir = os.path.dirname(os.path.abspath(site.__file__))
+    no_global_file = os.path.join(site_mod_dir, 'no-global-site-packages.txt')
+    if running_under_virtualenv() and os.path.isfile(no_global_file):
+        return True
+
+
+if running_under_virtualenv():
+    src_prefix = os.path.join(sys.prefix, 'src')
+else:
+    # FIXME: keep src in cwd for now (it is not a temporary folder)
+    try:
+        src_prefix = os.path.join(os.getcwd(), 'src')
+    except OSError:
+        # In case the current working directory has been renamed or deleted
+        sys.exit(
+            "The folder you are executing pip from can no longer be found."
+        )
+
+# under macOS + virtualenv sys.prefix is not properly resolved
+# it is something like /path/to/python/bin/..
+# Note: using realpath due to tmp dirs on OSX being symlinks
+src_prefix = os.path.abspath(src_prefix)
+
+# FIXME doesn't account for venv linked to global site-packages
+
+site_packages = sysconfig.get_python_lib()
+user_site = site.USER_SITE
+user_dir = expanduser('~')
+if WINDOWS:
+    bin_py = os.path.join(sys.prefix, 'Scripts')
+    bin_user = os.path.join(user_site, 'Scripts')
+    # buildout uses 'bin' on Windows too?
+    if not os.path.exists(bin_py):
+        bin_py = os.path.join(sys.prefix, 'bin')
+        bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.ini'
+
+    legacy_storage_dir = os.path.join(user_dir, 'pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+else:
+    bin_py = os.path.join(sys.prefix, 'bin')
+    bin_user = os.path.join(user_site, 'bin')
+
+    config_basename = 'pip.conf'
+
+    legacy_storage_dir = os.path.join(user_dir, '.pip')
+    legacy_config_file = os.path.join(
+        legacy_storage_dir,
+        config_basename,
+    )
+
+    # Forcing to use /usr/local/bin for standard macOS framework installs
+    # Also log to ~/Library/Logs/ for use with the Console.app log viewer
+    if sys.platform[:6] == 'darwin' and sys.prefix[:16] == '/System/Library/':
+        bin_py = '/usr/local/bin'
+
+site_config_files = [
+    os.path.join(path, config_basename)
+    for path in appdirs.site_config_dirs('pip')
+]
+
+
+def distutils_scheme(dist_name, user=False, home=None, root=None,
+                     isolated=False, prefix=None):
+    """
+    Return a distutils install scheme
+    """
+    from distutils.dist import Distribution
+
+    scheme = {}
+
+    if isolated:
+        extra_dist_args = {"script_args": ["--no-user-cfg"]}
+    else:
+        extra_dist_args = {}
+    dist_args = {'name': dist_name}
+    dist_args.update(extra_dist_args)
+
+    d = Distribution(dist_args)
+    d.parse_config_files()
+    i = d.get_command_obj('install', create=True)
+    # NOTE: setting user or home has the side-effect of creating the home dir
+    # or user base for installations during finalize_options()
+    # ideally, we'd prefer a scheme class that has no side-effects.
+    assert not (user and prefix), "user={0} prefix={1}".format(user, prefix)
+    i.user = user or i.user
+    if user:
+        i.prefix = ""
+    i.prefix = prefix or i.prefix
+    i.home = home or i.home
+    i.root = root or i.root
+    i.finalize_options()
+    for key in SCHEME_KEYS:
+        scheme[key] = getattr(i, 'install_' + key)
+
+    # install_lib specified in setup.cfg should install *everything*
+    # into there (i.e. it takes precedence over both purelib and
+    # platlib).  Note, i.install_lib is *always* set after
+    # finalize_options(); we only want to override here if the user
+    # has explicitly requested it hence going back to the config
+    if 'install_lib' in d.get_option_dict('install'):
+        scheme.update(dict(purelib=i.install_lib, platlib=i.install_lib))
+
+    if running_under_virtualenv():
+        scheme['headers'] = os.path.join(
+            sys.prefix,
+            'include',
+            'site',
+            'python' + sys.version[:3],
+            dist_name,
+        )
+
+        if root is not None:
+            path_no_drive = os.path.splitdrive(
+                os.path.abspath(scheme["headers"]))[1]
+            scheme["headers"] = os.path.join(
+                root,
+                path_no_drive[1:],
+            )
+
+    return scheme
diff --git a/venv1/lib/python3.5/site-packages/pip/models/__init__.py b/venv1/lib/python3.5/site-packages/pip/models/__init__.py
new file mode 100644
index 0000000..1d727d7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/models/__init__.py
@@ -0,0 +1,4 @@
+from pip.models.index import Index, PyPI
+
+
+__all__ = ["Index", "PyPI"]
diff --git a/venv1/lib/python3.5/site-packages/pip/models/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pip/models/__pycache__/__init__.cpython-35.pyc
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diff --git a/venv1/lib/python3.5/site-packages/pip/models/index.py b/venv1/lib/python3.5/site-packages/pip/models/index.py
new file mode 100644
index 0000000..be99119
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/models/index.py
@@ -0,0 +1,16 @@
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+
+class Index(object):
+    def __init__(self, url):
+        self.url = url
+        self.netloc = urllib_parse.urlsplit(url).netloc
+        self.simple_url = self.url_to_path('simple')
+        self.pypi_url = self.url_to_path('pypi')
+        self.pip_json_url = self.url_to_path('pypi/pip/json')
+
+    def url_to_path(self, path):
+        return urllib_parse.urljoin(self.url, path)
+
+
+PyPI = Index('https://pypi.python.org/')
diff --git a/venv1/lib/python3.5/site-packages/pip/operations/__init__.py b/venv1/lib/python3.5/site-packages/pip/operations/__init__.py
new file mode 100644
index 0000000..e69de29
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diff --git a/venv1/lib/python3.5/site-packages/pip/operations/check.py b/venv1/lib/python3.5/site-packages/pip/operations/check.py
new file mode 100644
index 0000000..2cf67aa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/operations/check.py
@@ -0,0 +1,49 @@
+
+
+def check_requirements(installed_dists):
+    missing_reqs_dict = {}
+    incompatible_reqs_dict = {}
+
+    for dist in installed_dists:
+        key = '%s==%s' % (dist.project_name, dist.version)
+
+        missing_reqs = list(get_missing_reqs(dist, installed_dists))
+        if missing_reqs:
+            missing_reqs_dict[key] = missing_reqs
+
+        incompatible_reqs = list(get_incompatible_reqs(
+            dist, installed_dists))
+        if incompatible_reqs:
+            incompatible_reqs_dict[key] = incompatible_reqs
+
+    return (missing_reqs_dict, incompatible_reqs_dict)
+
+
+def get_missing_reqs(dist, installed_dists):
+    """Return all of the requirements of `dist` that aren't present in
+    `installed_dists`.
+
+    """
+    installed_names = set(d.project_name.lower() for d in installed_dists)
+    missing_requirements = set()
+
+    for requirement in dist.requires():
+        if requirement.project_name.lower() not in installed_names:
+            missing_requirements.add(requirement)
+            yield requirement
+
+
+def get_incompatible_reqs(dist, installed_dists):
+    """Return all of the requirements of `dist` that are present in
+    `installed_dists`, but have incompatible versions.
+
+    """
+    installed_dists_by_name = {}
+    for installed_dist in installed_dists:
+        installed_dists_by_name[installed_dist.project_name] = installed_dist
+
+    for requirement in dist.requires():
+        present_dist = installed_dists_by_name.get(requirement.project_name)
+
+        if present_dist and present_dist not in requirement:
+            yield (requirement, present_dist)
diff --git a/venv1/lib/python3.5/site-packages/pip/operations/freeze.py b/venv1/lib/python3.5/site-packages/pip/operations/freeze.py
new file mode 100644
index 0000000..920c2c1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/operations/freeze.py
@@ -0,0 +1,132 @@
+from __future__ import absolute_import
+
+import logging
+import re
+
+import pip
+from pip.req import InstallRequirement
+from pip.req.req_file import COMMENT_RE
+from pip.utils import get_installed_distributions
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.pkg_resources import RequirementParseError
+
+
+logger = logging.getLogger(__name__)
+
+
+def freeze(
+        requirement=None,
+        find_links=None, local_only=None, user_only=None, skip_regex=None,
+        default_vcs=None,
+        isolated=False,
+        wheel_cache=None,
+        skip=()):
+    find_links = find_links or []
+    skip_match = None
+
+    if skip_regex:
+        skip_match = re.compile(skip_regex).search
+
+    dependency_links = []
+
+    for dist in pkg_resources.working_set:
+        if dist.has_metadata('dependency_links.txt'):
+            dependency_links.extend(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+    for link in find_links:
+        if '#egg=' in link:
+            dependency_links.append(link)
+    for link in find_links:
+        yield '-f %s' % link
+    installations = {}
+    for dist in get_installed_distributions(local_only=local_only,
+                                            skip=(),
+                                            user_only=user_only):
+        try:
+            req = pip.FrozenRequirement.from_dist(
+                dist,
+                dependency_links
+            )
+        except RequirementParseError:
+            logger.warning(
+                "Could not parse requirement: %s",
+                dist.project_name
+            )
+            continue
+        installations[req.name] = req
+
+    if requirement:
+        # the options that don't get turned into an InstallRequirement
+        # should only be emitted once, even if the same option is in multiple
+        # requirements files, so we need to keep track of what has been emitted
+        # so that we don't emit it again if it's seen again
+        emitted_options = set()
+        for req_file_path in requirement:
+            with open(req_file_path) as req_file:
+                for line in req_file:
+                    if (not line.strip() or
+                            line.strip().startswith('#') or
+                            (skip_match and skip_match(line)) or
+                            line.startswith((
+                                '-r', '--requirement',
+                                '-Z', '--always-unzip',
+                                '-f', '--find-links',
+                                '-i', '--index-url',
+                                '--pre',
+                                '--trusted-host',
+                                '--process-dependency-links',
+                                '--extra-index-url'))):
+                        line = line.rstrip()
+                        if line not in emitted_options:
+                            emitted_options.add(line)
+                            yield line
+                        continue
+
+                    if line.startswith('-e') or line.startswith('--editable'):
+                        if line.startswith('-e'):
+                            line = line[2:].strip()
+                        else:
+                            line = line[len('--editable'):].strip().lstrip('=')
+                        line_req = InstallRequirement.from_editable(
+                            line,
+                            default_vcs=default_vcs,
+                            isolated=isolated,
+                            wheel_cache=wheel_cache,
+                        )
+                    else:
+                        line_req = InstallRequirement.from_line(
+                            COMMENT_RE.sub('', line).strip(),
+                            isolated=isolated,
+                            wheel_cache=wheel_cache,
+                        )
+
+                    if not line_req.name:
+                        logger.info(
+                            "Skipping line in requirement file [%s] because "
+                            "it's not clear what it would install: %s",
+                            req_file_path, line.strip(),
+                        )
+                        logger.info(
+                            "  (add #egg=PackageName to the URL to avoid"
+                            " this warning)"
+                        )
+                    elif line_req.name not in installations:
+                        logger.warning(
+                            "Requirement file [%s] contains %s, but that "
+                            "package is not installed",
+                            req_file_path, COMMENT_RE.sub('', line).strip(),
+                        )
+                    else:
+                        yield str(installations[line_req.name]).rstrip()
+                        del installations[line_req.name]
+
+        yield(
+            '## The following requirements were added by '
+            'pip freeze:'
+        )
+    for installation in sorted(
+            installations.values(), key=lambda x: x.name.lower()):
+        if canonicalize_name(installation.name) not in skip:
+            yield str(installation).rstrip()
diff --git a/venv1/lib/python3.5/site-packages/pip/pep425tags.py b/venv1/lib/python3.5/site-packages/pip/pep425tags.py
new file mode 100644
index 0000000..ad202ef
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/pep425tags.py
@@ -0,0 +1,324 @@
+"""Generate and work with PEP 425 Compatibility Tags."""
+from __future__ import absolute_import
+
+import re
+import sys
+import warnings
+import platform
+import logging
+
+try:
+    import sysconfig
+except ImportError:  # pragma nocover
+    # Python < 2.7
+    import distutils.sysconfig as sysconfig
+import distutils.util
+
+from pip.compat import OrderedDict
+import pip.utils.glibc
+
+logger = logging.getLogger(__name__)
+
+_osx_arch_pat = re.compile(r'(.+)_(\d+)_(\d+)_(.+)')
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # Issue #1074
+        warnings.warn("{0}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    if hasattr(sys, 'pypy_version_info'):
+        pyimpl = 'pp'
+    elif sys.platform.startswith('java'):
+        pyimpl = 'jy'
+    elif sys.platform == 'cli':
+        pyimpl = 'ip'
+    else:
+        pyimpl = 'cp'
+    return pyimpl
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_impl_tag():
+    """
+    Returns the Tag for this specific implementation.
+    """
+    return "{0}{1}".format(get_abbr_impl(), get_impl_ver())
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            logger.debug("Config variable '%s' is unset, Python ABI tag may "
+                         "be incorrect", var)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in ('cp', 'pp') and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def _is_running_32bit():
+    return sys.maxsize == 2147483647
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    if sys.platform == 'darwin':
+        # distutils.util.get_platform() returns the release based on the value
+        # of MACOSX_DEPLOYMENT_TARGET on which Python was built, which may
+        # be significantly older than the user's current machine.
+        release, _, machine = platform.mac_ver()
+        split_ver = release.split('.')
+
+        if machine == "x86_64" and _is_running_32bit():
+            machine = "i386"
+        elif machine == "ppc64" and _is_running_32bit():
+            machine = "ppc"
+
+        return 'macosx_{0}_{1}_{2}'.format(split_ver[0], split_ver[1], machine)
+
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and _is_running_32bit():
+        # 32 bit Python program (running on a 64 bit Linux): pip should only
+        # install and run 32 bit compiled extensions in that case.
+        result = "linux_i686"
+
+    return result
+
+
+def is_manylinux1_compatible():
+    # Only Linux, and only x86-64 / i686
+    if get_platform() not in ("linux_x86_64", "linux_i686"):
+        return False
+
+    # Check for presence of _manylinux module
+    try:
+        import _manylinux
+        return bool(_manylinux.manylinux1_compatible)
+    except (ImportError, AttributeError):
+        # Fall through to heuristic check below
+        pass
+
+    # Check glibc version. CentOS 5 uses glibc 2.5.
+    return pip.utils.glibc.have_compatible_glibc(2, 5)
+
+
+def get_darwin_arches(major, minor, machine):
+    """Return a list of supported arches (including group arches) for
+    the given major, minor and machine architecture of an macOS machine.
+    """
+    arches = []
+
+    def _supports_arch(major, minor, arch):
+        # Looking at the application support for macOS versions in the chart
+        # provided by https://en.wikipedia.org/wiki/OS_X#Versions it appears
+        # our timeline looks roughly like:
+        #
+        # 10.0 - Introduces ppc support.
+        # 10.4 - Introduces ppc64, i386, and x86_64 support, however the ppc64
+        #        and x86_64 support is CLI only, and cannot be used for GUI
+        #        applications.
+        # 10.5 - Extends ppc64 and x86_64 support to cover GUI applications.
+        # 10.6 - Drops support for ppc64
+        # 10.7 - Drops support for ppc
+        #
+        # Given that we do not know if we're installing a CLI or a GUI
+        # application, we must be conservative and assume it might be a GUI
+        # application and behave as if ppc64 and x86_64 support did not occur
+        # until 10.5.
+        #
+        # Note: The above information is taken from the "Application support"
+        #       column in the chart not the "Processor support" since I believe
+        #       that we care about what instruction sets an application can use
+        #       not which processors the OS supports.
+        if arch == 'ppc':
+            return (major, minor) <= (10, 5)
+        if arch == 'ppc64':
+            return (major, minor) == (10, 5)
+        if arch == 'i386':
+            return (major, minor) >= (10, 4)
+        if arch == 'x86_64':
+            return (major, minor) >= (10, 5)
+        if arch in groups:
+            for garch in groups[arch]:
+                if _supports_arch(major, minor, garch):
+                    return True
+        return False
+
+    groups = OrderedDict([
+        ("fat", ("i386", "ppc")),
+        ("intel", ("x86_64", "i386")),
+        ("fat64", ("x86_64", "ppc64")),
+        ("fat32", ("x86_64", "i386", "ppc")),
+    ])
+
+    if _supports_arch(major, minor, machine):
+        arches.append(machine)
+
+    for garch in groups:
+        if machine in groups[garch] and _supports_arch(major, minor, garch):
+            arches.append(garch)
+
+    arches.append('universal')
+
+    return arches
+
+
+def get_supported(versions=None, noarch=False, platform=None,
+                  impl=None, abi=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    :param platform: specify the exact platform you want valid
+        tags for, or None. If None, use the local system platform.
+    :param impl: specify the exact implementation you want valid
+        tags for, or None. If None, use the local interpreter impl.
+    :param abi: specify the exact abi you want valid
+        tags for, or None. If None, use the local interpreter abi.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = impl or get_abbr_impl()
+
+    abis = []
+
+    abi = abi or get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    if not noarch:
+        arch = platform or get_platform()
+        if arch.startswith('macosx'):
+            # support macosx-10.6-intel on macosx-10.9-x86_64
+            match = _osx_arch_pat.match(arch)
+            if match:
+                name, major, minor, actual_arch = match.groups()
+                tpl = '{0}_{1}_%i_%s'.format(name, major)
+                arches = []
+                for m in reversed(range(int(minor) + 1)):
+                    for a in get_darwin_arches(int(major), m, actual_arch):
+                        arches.append(tpl % (m, a))
+            else:
+                # arch pattern didn't match (?!)
+                arches = [arch]
+        elif platform is None and is_manylinux1_compatible():
+            arches = [arch.replace('linux', 'manylinux1'), arch]
+        else:
+            arches = [arch]
+
+        # Current version, current API (built specifically for our Python):
+        for abi in abis:
+            for arch in arches:
+                supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+        # abi3 modules compatible with older version of Python
+        for version in versions[1:]:
+            # abi3 was introduced in Python 3.2
+            if version in ('31', '30'):
+                break
+            for abi in abi3s:   # empty set if not Python 3
+                for arch in arches:
+                    supported.append(("%s%s" % (impl, version), abi, arch))
+
+        # Has binaries, does not use the Python API:
+        for arch in arches:
+            supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, but requires our implementation:
+    supported.append(('%s%s' % (impl, versions[0]), 'none', 'any'))
+    # Tagged specifically as being cross-version compatible
+    # (with just the major version specified)
+    supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
+
+supported_tags = get_supported()
+supported_tags_noarch = get_supported(noarch=True)
+
+implementation_tag = get_impl_tag()
diff --git a/venv1/lib/python3.5/site-packages/pip/req/__init__.py b/venv1/lib/python3.5/site-packages/pip/req/__init__.py
new file mode 100644
index 0000000..00185a4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/req/__init__.py
@@ -0,0 +1,10 @@
+from __future__ import absolute_import
+
+from .req_install import InstallRequirement
+from .req_set import RequirementSet, Requirements
+from .req_file import parse_requirements
+
+__all__ = [
+    "RequirementSet", "Requirements", "InstallRequirement",
+    "parse_requirements",
+]
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diff --git a/venv1/lib/python3.5/site-packages/pip/req/req_file.py b/venv1/lib/python3.5/site-packages/pip/req/req_file.py
new file mode 100644
index 0000000..821df22
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/req/req_file.py
@@ -0,0 +1,342 @@
+"""
+Requirements file parsing
+"""
+
+from __future__ import absolute_import
+
+import os
+import re
+import shlex
+import sys
+import optparse
+import warnings
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves import filterfalse
+
+import pip
+from pip.download import get_file_content
+from pip.req.req_install import InstallRequirement
+from pip.exceptions import (RequirementsFileParseError)
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip import cmdoptions
+
+__all__ = ['parse_requirements']
+
+SCHEME_RE = re.compile(r'^(http|https|file):', re.I)
+COMMENT_RE = re.compile(r'(^|\s)+#.*$')
+
+SUPPORTED_OPTIONS = [
+    cmdoptions.constraints,
+    cmdoptions.editable,
+    cmdoptions.requirements,
+    cmdoptions.no_index,
+    cmdoptions.index_url,
+    cmdoptions.find_links,
+    cmdoptions.extra_index_url,
+    cmdoptions.allow_external,
+    cmdoptions.allow_all_external,
+    cmdoptions.no_allow_external,
+    cmdoptions.allow_unsafe,
+    cmdoptions.no_allow_unsafe,
+    cmdoptions.use_wheel,
+    cmdoptions.no_use_wheel,
+    cmdoptions.always_unzip,
+    cmdoptions.no_binary,
+    cmdoptions.only_binary,
+    cmdoptions.pre,
+    cmdoptions.process_dependency_links,
+    cmdoptions.trusted_host,
+    cmdoptions.require_hashes,
+]
+
+# options to be passed to requirements
+SUPPORTED_OPTIONS_REQ = [
+    cmdoptions.install_options,
+    cmdoptions.global_options,
+    cmdoptions.hash,
+]
+
+# the 'dest' string values
+SUPPORTED_OPTIONS_REQ_DEST = [o().dest for o in SUPPORTED_OPTIONS_REQ]
+
+
+def parse_requirements(filename, finder=None, comes_from=None, options=None,
+                       session=None, constraint=False, wheel_cache=None):
+    """Parse a requirements file and yield InstallRequirement instances.
+
+    :param filename:    Path or url of requirements file.
+    :param finder:      Instance of pip.index.PackageFinder.
+    :param comes_from:  Origin description of requirements.
+    :param options:     cli options.
+    :param session:     Instance of pip.download.PipSession.
+    :param constraint:  If true, parsing a constraint file rather than
+        requirements file.
+    :param wheel_cache: Instance of pip.wheel.WheelCache
+    """
+    if session is None:
+        raise TypeError(
+            "parse_requirements() missing 1 required keyword argument: "
+            "'session'"
+        )
+
+    _, content = get_file_content(
+        filename, comes_from=comes_from, session=session
+    )
+
+    lines_enum = preprocess(content, options)
+
+    for line_number, line in lines_enum:
+        req_iter = process_line(line, filename, line_number, finder,
+                                comes_from, options, session, wheel_cache,
+                                constraint=constraint)
+        for req in req_iter:
+            yield req
+
+
+def preprocess(content, options):
+    """Split, filter, and join lines, and return a line iterator
+
+    :param content: the content of the requirements file
+    :param options: cli options
+    """
+    lines_enum = enumerate(content.splitlines(), start=1)
+    lines_enum = join_lines(lines_enum)
+    lines_enum = ignore_comments(lines_enum)
+    lines_enum = skip_regex(lines_enum, options)
+    return lines_enum
+
+
+def process_line(line, filename, line_number, finder=None, comes_from=None,
+                 options=None, session=None, wheel_cache=None,
+                 constraint=False):
+    """Process a single requirements line; This can result in creating/yielding
+    requirements, or updating the finder.
+
+    For lines that contain requirements, the only options that have an effect
+    are from SUPPORTED_OPTIONS_REQ, and they are scoped to the
+    requirement. Other options from SUPPORTED_OPTIONS may be present, but are
+    ignored.
+
+    For lines that do not contain requirements, the only options that have an
+    effect are from SUPPORTED_OPTIONS. Options from SUPPORTED_OPTIONS_REQ may
+    be present, but are ignored. These lines may contain multiple options
+    (although our docs imply only one is supported), and all our parsed and
+    affect the finder.
+
+    :param constraint: If True, parsing a constraints file.
+    :param options: OptionParser options that we may update
+    """
+    parser = build_parser()
+    defaults = parser.get_default_values()
+    defaults.index_url = None
+    if finder:
+        # `finder.format_control` will be updated during parsing
+        defaults.format_control = finder.format_control
+    args_str, options_str = break_args_options(line)
+    if sys.version_info < (2, 7, 3):
+        # Prior to 2.7.3, shlex cannot deal with unicode entries
+        options_str = options_str.encode('utf8')
+    opts, _ = parser.parse_args(shlex.split(options_str), defaults)
+
+    # preserve for the nested code path
+    line_comes_from = '%s %s (line %s)' % (
+        '-c' if constraint else '-r', filename, line_number)
+
+    # yield a line requirement
+    if args_str:
+        isolated = options.isolated_mode if options else False
+        if options:
+            cmdoptions.check_install_build_global(options, opts)
+        # get the options that apply to requirements
+        req_options = {}
+        for dest in SUPPORTED_OPTIONS_REQ_DEST:
+            if dest in opts.__dict__ and opts.__dict__[dest]:
+                req_options[dest] = opts.__dict__[dest]
+        yield InstallRequirement.from_line(
+            args_str, line_comes_from, constraint=constraint,
+            isolated=isolated, options=req_options, wheel_cache=wheel_cache
+        )
+
+    # yield an editable requirement
+    elif opts.editables:
+        isolated = options.isolated_mode if options else False
+        default_vcs = options.default_vcs if options else None
+        yield InstallRequirement.from_editable(
+            opts.editables[0], comes_from=line_comes_from,
+            constraint=constraint, default_vcs=default_vcs, isolated=isolated,
+            wheel_cache=wheel_cache
+        )
+
+    # parse a nested requirements file
+    elif opts.requirements or opts.constraints:
+        if opts.requirements:
+            req_path = opts.requirements[0]
+            nested_constraint = False
+        else:
+            req_path = opts.constraints[0]
+            nested_constraint = True
+        # original file is over http
+        if SCHEME_RE.search(filename):
+            # do a url join so relative paths work
+            req_path = urllib_parse.urljoin(filename, req_path)
+        # original file and nested file are paths
+        elif not SCHEME_RE.search(req_path):
+            # do a join so relative paths work
+            req_path = os.path.join(os.path.dirname(filename), req_path)
+        # TODO: Why not use `comes_from='-r {} (line {})'` here as well?
+        parser = parse_requirements(
+            req_path, finder, comes_from, options, session,
+            constraint=nested_constraint, wheel_cache=wheel_cache
+        )
+        for req in parser:
+            yield req
+
+    # percolate hash-checking option upward
+    elif opts.require_hashes:
+        options.require_hashes = opts.require_hashes
+
+    # set finder options
+    elif finder:
+        if opts.allow_external:
+            warnings.warn(
+                "--allow-external has been deprecated and will be removed in "
+                "the future. Due to changes in the repository protocol, it no "
+                "longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.allow_all_external:
+            warnings.warn(
+                "--allow-all-external has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.allow_unverified:
+            warnings.warn(
+                "--allow-unverified has been deprecated and will be removed "
+                "in the future. Due to changes in the repository protocol, it "
+                "no longer has any effect.",
+                RemovedInPip10Warning,
+            )
+
+        if opts.index_url:
+            finder.index_urls = [opts.index_url]
+        if opts.use_wheel is False:
+            finder.use_wheel = False
+            pip.index.fmt_ctl_no_use_wheel(finder.format_control)
+        if opts.no_index is True:
+            finder.index_urls = []
+        if opts.extra_index_urls:
+            finder.index_urls.extend(opts.extra_index_urls)
+        if opts.find_links:
+            # FIXME: it would be nice to keep track of the source
+            # of the find_links: support a find-links local path
+            # relative to a requirements file.
+            value = opts.find_links[0]
+            req_dir = os.path.dirname(os.path.abspath(filename))
+            relative_to_reqs_file = os.path.join(req_dir, value)
+            if os.path.exists(relative_to_reqs_file):
+                value = relative_to_reqs_file
+            finder.find_links.append(value)
+        if opts.pre:
+            finder.allow_all_prereleases = True
+        if opts.process_dependency_links:
+            finder.process_dependency_links = True
+        if opts.trusted_hosts:
+            finder.secure_origins.extend(
+                ("*", host, "*") for host in opts.trusted_hosts)
+
+
+def break_args_options(line):
+    """Break up the line into an args and options string.  We only want to shlex
+    (and then optparse) the options, not the args.  args can contain markers
+    which are corrupted by shlex.
+    """
+    tokens = line.split(' ')
+    args = []
+    options = tokens[:]
+    for token in tokens:
+        if token.startswith('-') or token.startswith('--'):
+            break
+        else:
+            args.append(token)
+            options.pop(0)
+    return ' '.join(args), ' '.join(options)
+
+
+def build_parser():
+    """
+    Return a parser for parsing requirement lines
+    """
+    parser = optparse.OptionParser(add_help_option=False)
+
+    option_factories = SUPPORTED_OPTIONS + SUPPORTED_OPTIONS_REQ
+    for option_factory in option_factories:
+        option = option_factory()
+        parser.add_option(option)
+
+    # By default optparse sys.exits on parsing errors. We want to wrap
+    # that in our own exception.
+    def parser_exit(self, msg):
+        raise RequirementsFileParseError(msg)
+    parser.exit = parser_exit
+
+    return parser
+
+
+def join_lines(lines_enum):
+    """Joins a line ending in '\' with the previous line (except when following
+    comments).  The joined line takes on the index of the first line.
+    """
+    primary_line_number = None
+    new_line = []
+    for line_number, line in lines_enum:
+        if not line.endswith('\\') or COMMENT_RE.match(line):
+            if COMMENT_RE.match(line):
+                # this ensures comments are always matched later
+                line = ' ' + line
+            if new_line:
+                new_line.append(line)
+                yield primary_line_number, ''.join(new_line)
+                new_line = []
+            else:
+                yield line_number, line
+        else:
+            if not new_line:
+                primary_line_number = line_number
+            new_line.append(line.strip('\\'))
+
+    # last line contains \
+    if new_line:
+        yield primary_line_number, ''.join(new_line)
+
+    # TODO: handle space after '\'.
+
+
+def ignore_comments(lines_enum):
+    """
+    Strips comments and filter empty lines.
+    """
+    for line_number, line in lines_enum:
+        line = COMMENT_RE.sub('', line)
+        line = line.strip()
+        if line:
+            yield line_number, line
+
+
+def skip_regex(lines_enum, options):
+    """
+    Skip lines that match '--skip-requirements-regex' pattern
+
+    Note: the regex pattern is only built once
+    """
+    skip_regex = options.skip_requirements_regex if options else None
+    if skip_regex:
+        pattern = re.compile(skip_regex)
+        lines_enum = filterfalse(
+            lambda e: pattern.search(e[1]),
+            lines_enum)
+    return lines_enum
diff --git a/venv1/lib/python3.5/site-packages/pip/req/req_install.py b/venv1/lib/python3.5/site-packages/pip/req/req_install.py
new file mode 100644
index 0000000..1a98f37
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/req/req_install.py
@@ -0,0 +1,1204 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import re
+import shutil
+import sys
+import tempfile
+import traceback
+import warnings
+import zipfile
+
+from distutils import sysconfig
+from distutils.util import change_root
+from email.parser import FeedParser
+
+from pip._vendor import pkg_resources, six
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging.markers import Marker
+from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.packaging.version import Version, parse as parse_version
+from pip._vendor.six.moves import configparser
+
+import pip.wheel
+
+from pip.compat import native_str, get_stdlib, WINDOWS
+from pip.download import is_url, url_to_path, path_to_url, is_archive_file
+from pip.exceptions import (
+    InstallationError, UninstallationError,
+)
+from pip.locations import (
+    bin_py, running_under_virtualenv, PIP_DELETE_MARKER_FILENAME, bin_user,
+)
+from pip.utils import (
+    display_path, rmtree, ask_path_exists, backup_dir, is_installable_dir,
+    dist_in_usersite, dist_in_site_packages, egg_link_path,
+    call_subprocess, read_text_file, FakeFile, _make_build_dir, ensure_dir,
+    get_installed_version, normalize_path, dist_is_local,
+)
+
+from pip.utils.hashes import Hashes
+from pip.utils.deprecation import RemovedInPip10Warning
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip.utils.ui import open_spinner
+from pip.req.req_uninstall import UninstallPathSet
+from pip.vcs import vcs
+from pip.wheel import move_wheel_files, Wheel
+
+
+logger = logging.getLogger(__name__)
+
+operators = specifiers.Specifier._operators.keys()
+
+
+def _strip_extras(path):
+    m = re.match(r'^(.+)(\[[^\]]+\])$', path)
+    extras = None
+    if m:
+        path_no_extras = m.group(1)
+        extras = m.group(2)
+    else:
+        path_no_extras = path
+
+    return path_no_extras, extras
+
+
+def _safe_extras(extras):
+    return set(pkg_resources.safe_extra(extra) for extra in extras)
+
+
+class InstallRequirement(object):
+
+    def __init__(self, req, comes_from, source_dir=None, editable=False,
+                 link=None, as_egg=False, update=True,
+                 pycompile=True, markers=None, isolated=False, options=None,
+                 wheel_cache=None, constraint=False):
+        self.extras = ()
+        if isinstance(req, six.string_types):
+            try:
+                req = Requirement(req)
+            except InvalidRequirement:
+                if os.path.sep in req:
+                    add_msg = "It looks like a path. Does it exist ?"
+                elif '=' in req and not any(op in req for op in operators):
+                    add_msg = "= is not a valid operator. Did you mean == ?"
+                else:
+                    add_msg = traceback.format_exc()
+                raise InstallationError(
+                    "Invalid requirement: '%s'\n%s" % (req, add_msg))
+            self.extras = _safe_extras(req.extras)
+
+        self.req = req
+        self.comes_from = comes_from
+        self.constraint = constraint
+        self.source_dir = source_dir
+        self.editable = editable
+
+        self._wheel_cache = wheel_cache
+        self.link = self.original_link = link
+        self.as_egg = as_egg
+        if markers is not None:
+            self.markers = markers
+        else:
+            self.markers = req and req.marker
+        self._egg_info_path = None
+        # This holds the pkg_resources.Distribution object if this requirement
+        # is already available:
+        self.satisfied_by = None
+        # This hold the pkg_resources.Distribution object if this requirement
+        # conflicts with another installed distribution:
+        self.conflicts_with = None
+        # Temporary build location
+        self._temp_build_dir = None
+        # Used to store the global directory where the _temp_build_dir should
+        # have been created. Cf _correct_build_location method.
+        self._ideal_build_dir = None
+        # True if the editable should be updated:
+        self.update = update
+        # Set to True after successful installation
+        self.install_succeeded = None
+        # UninstallPathSet of uninstalled distribution (for possible rollback)
+        self.uninstalled = None
+        # Set True if a legitimate do-nothing-on-uninstall has happened - e.g.
+        # system site packages, stdlib packages.
+        self.nothing_to_uninstall = False
+        self.use_user_site = False
+        self.target_dir = None
+        self.options = options if options else {}
+        self.pycompile = pycompile
+        # Set to True after successful preparation of this requirement
+        self.prepared = False
+
+        self.isolated = isolated
+
+    @classmethod
+    def from_editable(cls, editable_req, comes_from=None, default_vcs=None,
+                      isolated=False, options=None, wheel_cache=None,
+                      constraint=False):
+        from pip.index import Link
+
+        name, url, extras_override = parse_editable(
+            editable_req, default_vcs)
+        if url.startswith('file:'):
+            source_dir = url_to_path(url)
+        else:
+            source_dir = None
+
+        res = cls(name, comes_from, source_dir=source_dir,
+                  editable=True,
+                  link=Link(url),
+                  constraint=constraint,
+                  isolated=isolated,
+                  options=options if options else {},
+                  wheel_cache=wheel_cache)
+
+        if extras_override is not None:
+            res.extras = _safe_extras(extras_override)
+
+        return res
+
+    @classmethod
+    def from_line(
+            cls, name, comes_from=None, isolated=False, options=None,
+            wheel_cache=None, constraint=False):
+        """Creates an InstallRequirement from a name, which might be a
+        requirement, directory containing 'setup.py', filename, or URL.
+        """
+        from pip.index import Link
+
+        if is_url(name):
+            marker_sep = '; '
+        else:
+            marker_sep = ';'
+        if marker_sep in name:
+            name, markers = name.split(marker_sep, 1)
+            markers = markers.strip()
+            if not markers:
+                markers = None
+            else:
+                markers = Marker(markers)
+        else:
+            markers = None
+        name = name.strip()
+        req = None
+        path = os.path.normpath(os.path.abspath(name))
+        link = None
+        extras = None
+
+        if is_url(name):
+            link = Link(name)
+        else:
+            p, extras = _strip_extras(path)
+            if (os.path.isdir(p) and
+                    (os.path.sep in name or name.startswith('.'))):
+
+                if not is_installable_dir(p):
+                    raise InstallationError(
+                        "Directory %r is not installable. File 'setup.py' "
+                        "not found." % name
+                    )
+                link = Link(path_to_url(p))
+            elif is_archive_file(p):
+                if not os.path.isfile(p):
+                    logger.warning(
+                        'Requirement %r looks like a filename, but the '
+                        'file does not exist',
+                        name
+                    )
+                link = Link(path_to_url(p))
+
+        # it's a local file, dir, or url
+        if link:
+            # Handle relative file URLs
+            if link.scheme == 'file' and re.search(r'\.\./', link.url):
+                link = Link(
+                    path_to_url(os.path.normpath(os.path.abspath(link.path))))
+            # wheel file
+            if link.is_wheel:
+                wheel = Wheel(link.filename)  # can raise InvalidWheelFilename
+                req = "%s==%s" % (wheel.name, wheel.version)
+            else:
+                # set the req to the egg fragment.  when it's not there, this
+                # will become an 'unnamed' requirement
+                req = link.egg_fragment
+
+        # a requirement specifier
+        else:
+            req = name
+
+        options = options if options else {}
+        res = cls(req, comes_from, link=link, markers=markers,
+                  isolated=isolated, options=options,
+                  wheel_cache=wheel_cache, constraint=constraint)
+
+        if extras:
+            res.extras = _safe_extras(
+                Requirement('placeholder' + extras).extras)
+
+        return res
+
+    def __str__(self):
+        if self.req:
+            s = str(self.req)
+            if self.link:
+                s += ' from %s' % self.link.url
+        else:
+            s = self.link.url if self.link else None
+        if self.satisfied_by is not None:
+            s += ' in %s' % display_path(self.satisfied_by.location)
+        if self.comes_from:
+            if isinstance(self.comes_from, six.string_types):
+                comes_from = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += ' (from %s)' % comes_from
+        return s
+
+    def __repr__(self):
+        return '<%s object: %s editable=%r>' % (
+            self.__class__.__name__, str(self), self.editable)
+
+    def populate_link(self, finder, upgrade, require_hashes):
+        """Ensure that if a link can be found for this, that it is found.
+
+        Note that self.link may still be None - if Upgrade is False and the
+        requirement is already installed.
+
+        If require_hashes is True, don't use the wheel cache, because cached
+        wheels, always built locally, have different hashes than the files
+        downloaded from the index server and thus throw false hash mismatches.
+        Furthermore, cached wheels at present have undeterministic contents due
+        to file modification times.
+        """
+        if self.link is None:
+            self.link = finder.find_requirement(self, upgrade)
+        if self._wheel_cache is not None and not require_hashes:
+            old_link = self.link
+            self.link = self._wheel_cache.cached_wheel(self.link, self.name)
+            if old_link != self.link:
+                logger.debug('Using cached wheel link: %s', self.link)
+
+    @property
+    def specifier(self):
+        return self.req.specifier
+
+    @property
+    def is_pinned(self):
+        """Return whether I am pinned to an exact version.
+
+        For example, some-package==1.2 is pinned; some-package>1.2 is not.
+        """
+        specifiers = self.specifier
+        return (len(specifiers) == 1 and
+                next(iter(specifiers)).operator in ('==', '==='))
+
+    def from_path(self):
+        if self.req is None:
+            return None
+        s = str(self.req)
+        if self.comes_from:
+            if isinstance(self.comes_from, six.string_types):
+                comes_from = self.comes_from
+            else:
+                comes_from = self.comes_from.from_path()
+            if comes_from:
+                s += '->' + comes_from
+        return s
+
+    def build_location(self, build_dir):
+        if self._temp_build_dir is not None:
+            return self._temp_build_dir
+        if self.req is None:
+            # for requirement via a path to a directory: the name of the
+            # package is not available yet so we create a temp directory
+            # Once run_egg_info will have run, we'll be able
+            # to fix it via _correct_build_location
+            # Some systems have /tmp as a symlink which confuses custom
+            # builds (such as numpy). Thus, we ensure that the real path
+            # is returned.
+            self._temp_build_dir = os.path.realpath(
+                tempfile.mkdtemp('-build', 'pip-')
+            )
+            self._ideal_build_dir = build_dir
+            return self._temp_build_dir
+        if self.editable:
+            name = self.name.lower()
+        else:
+            name = self.name
+        # FIXME: Is there a better place to create the build_dir? (hg and bzr
+        # need this)
+        if not os.path.exists(build_dir):
+            logger.debug('Creating directory %s', build_dir)
+            _make_build_dir(build_dir)
+        return os.path.join(build_dir, name)
+
+    def _correct_build_location(self):
+        """Move self._temp_build_dir to self._ideal_build_dir/self.req.name
+
+        For some requirements (e.g. a path to a directory), the name of the
+        package is not available until we run egg_info, so the build_location
+        will return a temporary directory and store the _ideal_build_dir.
+
+        This is only called by self.egg_info_path to fix the temporary build
+        directory.
+        """
+        if self.source_dir is not None:
+            return
+        assert self.req is not None
+        assert self._temp_build_dir
+        assert self._ideal_build_dir
+        old_location = self._temp_build_dir
+        self._temp_build_dir = None
+        new_location = self.build_location(self._ideal_build_dir)
+        if os.path.exists(new_location):
+            raise InstallationError(
+                'A package already exists in %s; please remove it to continue'
+                % display_path(new_location))
+        logger.debug(
+            'Moving package %s from %s to new location %s',
+            self, display_path(old_location), display_path(new_location),
+        )
+        shutil.move(old_location, new_location)
+        self._temp_build_dir = new_location
+        self._ideal_build_dir = None
+        self.source_dir = new_location
+        self._egg_info_path = None
+
+    @property
+    def name(self):
+        if self.req is None:
+            return None
+        return native_str(pkg_resources.safe_name(self.req.name))
+
+    @property
+    def setup_py_dir(self):
+        return os.path.join(
+            self.source_dir,
+            self.link and self.link.subdirectory_fragment or '')
+
+    @property
+    def setup_py(self):
+        assert self.source_dir, "No source dir for %s" % self
+        try:
+            import setuptools  # noqa
+        except ImportError:
+            if get_installed_version('setuptools') is None:
+                add_msg = "Please install setuptools."
+            else:
+                add_msg = traceback.format_exc()
+            # Setuptools is not available
+            raise InstallationError(
+                "Could not import setuptools which is required to "
+                "install from a source distribution.\n%s" % add_msg
+            )
+
+        setup_py = os.path.join(self.setup_py_dir, 'setup.py')
+
+        # Python2 __file__ should not be unicode
+        if six.PY2 and isinstance(setup_py, six.text_type):
+            setup_py = setup_py.encode(sys.getfilesystemencoding())
+
+        return setup_py
+
+    def run_egg_info(self):
+        assert self.source_dir
+        if self.name:
+            logger.debug(
+                'Running setup.py (path:%s) egg_info for package %s',
+                self.setup_py, self.name,
+            )
+        else:
+            logger.debug(
+                'Running setup.py (path:%s) egg_info for package from %s',
+                self.setup_py, self.link,
+            )
+
+        with indent_log():
+            script = SETUPTOOLS_SHIM % self.setup_py
+            base_cmd = [sys.executable, '-c', script]
+            if self.isolated:
+                base_cmd += ["--no-user-cfg"]
+            egg_info_cmd = base_cmd + ['egg_info']
+            # We can't put the .egg-info files at the root, because then the
+            # source code will be mistaken for an installed egg, causing
+            # problems
+            if self.editable:
+                egg_base_option = []
+            else:
+                egg_info_dir = os.path.join(self.setup_py_dir, 'pip-egg-info')
+                ensure_dir(egg_info_dir)
+                egg_base_option = ['--egg-base', 'pip-egg-info']
+            call_subprocess(
+                egg_info_cmd + egg_base_option,
+                cwd=self.setup_py_dir,
+                show_stdout=False,
+                command_desc='python setup.py egg_info')
+
+        if not self.req:
+            if isinstance(parse_version(self.pkg_info()["Version"]), Version):
+                op = "=="
+            else:
+                op = "==="
+            self.req = Requirement(
+                "".join([
+                    self.pkg_info()["Name"],
+                    op,
+                    self.pkg_info()["Version"],
+                ])
+            )
+            self._correct_build_location()
+        else:
+            metadata_name = canonicalize_name(self.pkg_info()["Name"])
+            if canonicalize_name(self.req.name) != metadata_name:
+                logger.warning(
+                    'Running setup.py (path:%s) egg_info for package %s '
+                    'produced metadata for project name %s. Fix your '
+                    '#egg=%s fragments.',
+                    self.setup_py, self.name, metadata_name, self.name
+                )
+                self.req = Requirement(metadata_name)
+
+    def egg_info_data(self, filename):
+        if self.satisfied_by is not None:
+            if not self.satisfied_by.has_metadata(filename):
+                return None
+            return self.satisfied_by.get_metadata(filename)
+        assert self.source_dir
+        filename = self.egg_info_path(filename)
+        if not os.path.exists(filename):
+            return None
+        data = read_text_file(filename)
+        return data
+
+    def egg_info_path(self, filename):
+        if self._egg_info_path is None:
+            if self.editable:
+                base = self.source_dir
+            else:
+                base = os.path.join(self.setup_py_dir, 'pip-egg-info')
+            filenames = os.listdir(base)
+            if self.editable:
+                filenames = []
+                for root, dirs, files in os.walk(base):
+                    for dir in vcs.dirnames:
+                        if dir in dirs:
+                            dirs.remove(dir)
+                    # Iterate over a copy of ``dirs``, since mutating
+                    # a list while iterating over it can cause trouble.
+                    # (See https://github.com/pypa/pip/pull/462.)
+                    for dir in list(dirs):
+                        # Don't search in anything that looks like a virtualenv
+                        # environment
+                        if (
+                                os.path.lexists(
+                                    os.path.join(root, dir, 'bin', 'python')
+                                ) or
+                                os.path.exists(
+                                    os.path.join(
+                                        root, dir, 'Scripts', 'Python.exe'
+                                    )
+                                )):
+                            dirs.remove(dir)
+                        # Also don't search through tests
+                        elif dir == 'test' or dir == 'tests':
+                            dirs.remove(dir)
+                    filenames.extend([os.path.join(root, dir)
+                                     for dir in dirs])
+                filenames = [f for f in filenames if f.endswith('.egg-info')]
+
+            if not filenames:
+                raise InstallationError(
+                    'No files/directories in %s (from %s)' % (base, filename)
+                )
+            assert filenames, \
+                "No files/directories in %s (from %s)" % (base, filename)
+
+            # if we have more than one match, we pick the toplevel one.  This
+            # can easily be the case if there is a dist folder which contains
+            # an extracted tarball for testing purposes.
+            if len(filenames) > 1:
+                filenames.sort(
+                    key=lambda x: x.count(os.path.sep) +
+                    (os.path.altsep and x.count(os.path.altsep) or 0)
+                )
+            self._egg_info_path = os.path.join(base, filenames[0])
+        return os.path.join(self._egg_info_path, filename)
+
+    def pkg_info(self):
+        p = FeedParser()
+        data = self.egg_info_data('PKG-INFO')
+        if not data:
+            logger.warning(
+                'No PKG-INFO file found in %s',
+                display_path(self.egg_info_path('PKG-INFO')),
+            )
+        p.feed(data or '')
+        return p.close()
+
+    _requirements_section_re = re.compile(r'\[(.*?)\]')
+
+    @property
+    def installed_version(self):
+        return get_installed_version(self.name)
+
+    def assert_source_matches_version(self):
+        assert self.source_dir
+        version = self.pkg_info()['version']
+        if self.req.specifier and version not in self.req.specifier:
+            logger.warning(
+                'Requested %s, but installing version %s',
+                self,
+                self.installed_version,
+            )
+        else:
+            logger.debug(
+                'Source in %s has version %s, which satisfies requirement %s',
+                display_path(self.source_dir),
+                version,
+                self,
+            )
+
+    def update_editable(self, obtain=True):
+        if not self.link:
+            logger.debug(
+                "Cannot update repository at %s; repository location is "
+                "unknown",
+                self.source_dir,
+            )
+            return
+        assert self.editable
+        assert self.source_dir
+        if self.link.scheme == 'file':
+            # Static paths don't get updated
+            return
+        assert '+' in self.link.url, "bad url: %r" % self.link.url
+        if not self.update:
+            return
+        vc_type, url = self.link.url.split('+', 1)
+        backend = vcs.get_backend(vc_type)
+        if backend:
+            vcs_backend = backend(self.link.url)
+            if obtain:
+                vcs_backend.obtain(self.source_dir)
+            else:
+                vcs_backend.export(self.source_dir)
+        else:
+            assert 0, (
+                'Unexpected version control type (in %s): %s'
+                % (self.link, vc_type))
+
+    def uninstall(self, auto_confirm=False):
+        """
+        Uninstall the distribution currently satisfying this requirement.
+
+        Prompts before removing or modifying files unless
+        ``auto_confirm`` is True.
+
+        Refuses to delete or modify files outside of ``sys.prefix`` -
+        thus uninstallation within a virtual environment can only
+        modify that virtual environment, even if the virtualenv is
+        linked to global site-packages.
+
+        """
+        if not self.check_if_exists():
+            raise UninstallationError(
+                "Cannot uninstall requirement %s, not installed" % (self.name,)
+            )
+        dist = self.satisfied_by or self.conflicts_with
+
+        dist_path = normalize_path(dist.location)
+        if not dist_is_local(dist):
+            logger.info(
+                "Not uninstalling %s at %s, outside environment %s",
+                dist.key,
+                dist_path,
+                sys.prefix,
+            )
+            self.nothing_to_uninstall = True
+            return
+
+        if dist_path in get_stdlib():
+            logger.info(
+                "Not uninstalling %s at %s, as it is in the standard library.",
+                dist.key,
+                dist_path,
+            )
+            self.nothing_to_uninstall = True
+            return
+
+        paths_to_remove = UninstallPathSet(dist)
+        develop_egg_link = egg_link_path(dist)
+        develop_egg_link_egg_info = '{0}.egg-info'.format(
+            pkg_resources.to_filename(dist.project_name))
+        egg_info_exists = dist.egg_info and os.path.exists(dist.egg_info)
+        # Special case for distutils installed package
+        distutils_egg_info = getattr(dist._provider, 'path', None)
+
+        # Uninstall cases order do matter as in the case of 2 installs of the
+        # same package, pip needs to uninstall the currently detected version
+        if (egg_info_exists and dist.egg_info.endswith('.egg-info') and
+                not dist.egg_info.endswith(develop_egg_link_egg_info)):
+            # if dist.egg_info.endswith(develop_egg_link_egg_info), we
+            # are in fact in the develop_egg_link case
+            paths_to_remove.add(dist.egg_info)
+            if dist.has_metadata('installed-files.txt'):
+                for installed_file in dist.get_metadata(
+                        'installed-files.txt').splitlines():
+                    path = os.path.normpath(
+                        os.path.join(dist.egg_info, installed_file)
+                    )
+                    paths_to_remove.add(path)
+            # FIXME: need a test for this elif block
+            # occurs with --single-version-externally-managed/--record outside
+            # of pip
+            elif dist.has_metadata('top_level.txt'):
+                if dist.has_metadata('namespace_packages.txt'):
+                    namespaces = dist.get_metadata('namespace_packages.txt')
+                else:
+                    namespaces = []
+                for top_level_pkg in [
+                        p for p
+                        in dist.get_metadata('top_level.txt').splitlines()
+                        if p and p not in namespaces]:
+                    path = os.path.join(dist.location, top_level_pkg)
+                    paths_to_remove.add(path)
+                    paths_to_remove.add(path + '.py')
+                    paths_to_remove.add(path + '.pyc')
+                    paths_to_remove.add(path + '.pyo')
+
+        elif distutils_egg_info:
+            warnings.warn(
+                "Uninstalling a distutils installed project ({0}) has been "
+                "deprecated and will be removed in a future version. This is "
+                "due to the fact that uninstalling a distutils project will "
+                "only partially uninstall the project.".format(self.name),
+                RemovedInPip10Warning,
+            )
+            paths_to_remove.add(distutils_egg_info)
+
+        elif dist.location.endswith('.egg'):
+            # package installed by easy_install
+            # We cannot match on dist.egg_name because it can slightly vary
+            # i.e. setuptools-0.6c11-py2.6.egg vs setuptools-0.6rc11-py2.6.egg
+            paths_to_remove.add(dist.location)
+            easy_install_egg = os.path.split(dist.location)[1]
+            easy_install_pth = os.path.join(os.path.dirname(dist.location),
+                                            'easy-install.pth')
+            paths_to_remove.add_pth(easy_install_pth, './' + easy_install_egg)
+
+        elif egg_info_exists and dist.egg_info.endswith('.dist-info'):
+            for path in pip.wheel.uninstallation_paths(dist):
+                paths_to_remove.add(path)
+
+        elif develop_egg_link:
+            # develop egg
+            with open(develop_egg_link, 'r') as fh:
+                link_pointer = os.path.normcase(fh.readline().strip())
+            assert (link_pointer == dist.location), (
+                'Egg-link %s does not match installed location of %s '
+                '(at %s)' % (link_pointer, self.name, dist.location)
+            )
+            paths_to_remove.add(develop_egg_link)
+            easy_install_pth = os.path.join(os.path.dirname(develop_egg_link),
+                                            'easy-install.pth')
+            paths_to_remove.add_pth(easy_install_pth, dist.location)
+
+        else:
+            logger.debug(
+                'Not sure how to uninstall: %s - Check: %s',
+                dist, dist.location)
+
+        # find distutils scripts= scripts
+        if dist.has_metadata('scripts') and dist.metadata_isdir('scripts'):
+            for script in dist.metadata_listdir('scripts'):
+                if dist_in_usersite(dist):
+                    bin_dir = bin_user
+                else:
+                    bin_dir = bin_py
+                paths_to_remove.add(os.path.join(bin_dir, script))
+                if WINDOWS:
+                    paths_to_remove.add(os.path.join(bin_dir, script) + '.bat')
+
+        # find console_scripts
+        if dist.has_metadata('entry_points.txt'):
+            if six.PY2:
+                options = {}
+            else:
+                options = {"delimiters": ('=', )}
+            config = configparser.SafeConfigParser(**options)
+            config.readfp(
+                FakeFile(dist.get_metadata_lines('entry_points.txt'))
+            )
+            if config.has_section('console_scripts'):
+                for name, value in config.items('console_scripts'):
+                    if dist_in_usersite(dist):
+                        bin_dir = bin_user
+                    else:
+                        bin_dir = bin_py
+                    paths_to_remove.add(os.path.join(bin_dir, name))
+                    if WINDOWS:
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '.exe'
+                        )
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '.exe.manifest'
+                        )
+                        paths_to_remove.add(
+                            os.path.join(bin_dir, name) + '-script.py'
+                        )
+
+        paths_to_remove.remove(auto_confirm)
+        self.uninstalled = paths_to_remove
+
+    def rollback_uninstall(self):
+        if self.uninstalled:
+            self.uninstalled.rollback()
+        else:
+            logger.error(
+                "Can't rollback %s, nothing uninstalled.", self.name,
+            )
+
+    def commit_uninstall(self):
+        if self.uninstalled:
+            self.uninstalled.commit()
+        elif not self.nothing_to_uninstall:
+            logger.error(
+                "Can't commit %s, nothing uninstalled.", self.name,
+            )
+
+    def archive(self, build_dir):
+        assert self.source_dir
+        create_archive = True
+        archive_name = '%s-%s.zip' % (self.name, self.pkg_info()["version"])
+        archive_path = os.path.join(build_dir, archive_name)
+        if os.path.exists(archive_path):
+            response = ask_path_exists(
+                'The file %s exists. (i)gnore, (w)ipe, (b)ackup, (a)bort ' %
+                display_path(archive_path), ('i', 'w', 'b', 'a'))
+            if response == 'i':
+                create_archive = False
+            elif response == 'w':
+                logger.warning('Deleting %s', display_path(archive_path))
+                os.remove(archive_path)
+            elif response == 'b':
+                dest_file = backup_dir(archive_path)
+                logger.warning(
+                    'Backing up %s to %s',
+                    display_path(archive_path),
+                    display_path(dest_file),
+                )
+                shutil.move(archive_path, dest_file)
+            elif response == 'a':
+                sys.exit(-1)
+        if create_archive:
+            zip = zipfile.ZipFile(
+                archive_path, 'w', zipfile.ZIP_DEFLATED,
+                allowZip64=True
+            )
+            dir = os.path.normcase(os.path.abspath(self.setup_py_dir))
+            for dirpath, dirnames, filenames in os.walk(dir):
+                if 'pip-egg-info' in dirnames:
+                    dirnames.remove('pip-egg-info')
+                for dirname in dirnames:
+                    dirname = os.path.join(dirpath, dirname)
+                    name = self._clean_zip_name(dirname, dir)
+                    zipdir = zipfile.ZipInfo(self.name + '/' + name + '/')
+                    zipdir.external_attr = 0x1ED << 16  # 0o755
+                    zip.writestr(zipdir, '')
+                for filename in filenames:
+                    if filename == PIP_DELETE_MARKER_FILENAME:
+                        continue
+                    filename = os.path.join(dirpath, filename)
+                    name = self._clean_zip_name(filename, dir)
+                    zip.write(filename, self.name + '/' + name)
+            zip.close()
+            logger.info('Saved %s', display_path(archive_path))
+
+    def _clean_zip_name(self, name, prefix):
+        assert name.startswith(prefix + os.path.sep), (
+            "name %r doesn't start with prefix %r" % (name, prefix)
+        )
+        name = name[len(prefix) + 1:]
+        name = name.replace(os.path.sep, '/')
+        return name
+
+    def match_markers(self, extras_requested=None):
+        if not extras_requested:
+            # Provide an extra to safely evaluate the markers
+            # without matching any extra
+            extras_requested = ('',)
+        if self.markers is not None:
+            return any(
+                self.markers.evaluate({'extra': extra})
+                for extra in extras_requested)
+        else:
+            return True
+
+    def install(self, install_options, global_options=[], root=None,
+                prefix=None):
+        if self.editable:
+            self.install_editable(
+                install_options, global_options, prefix=prefix)
+            return
+        if self.is_wheel:
+            version = pip.wheel.wheel_version(self.source_dir)
+            pip.wheel.check_compatibility(version, self.name)
+
+            self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
+            self.install_succeeded = True
+            return
+
+        # Extend the list of global and install options passed on to
+        # the setup.py call with the ones from the requirements file.
+        # Options specified in requirements file override those
+        # specified on the command line, since the last option given
+        # to setup.py is the one that is used.
+        global_options += self.options.get('global_options', [])
+        install_options += self.options.get('install_options', [])
+
+        if self.isolated:
+            global_options = list(global_options) + ["--no-user-cfg"]
+
+        temp_location = tempfile.mkdtemp('-record', 'pip-')
+        record_filename = os.path.join(temp_location, 'install-record.txt')
+        try:
+            install_args = self.get_install_args(
+                global_options, record_filename, root, prefix)
+            msg = 'Running setup.py install for %s' % (self.name,)
+            with open_spinner(msg) as spinner:
+                with indent_log():
+                    call_subprocess(
+                        install_args + install_options,
+                        cwd=self.setup_py_dir,
+                        show_stdout=False,
+                        spinner=spinner,
+                    )
+
+            if not os.path.exists(record_filename):
+                logger.debug('Record file %s not found', record_filename)
+                return
+            self.install_succeeded = True
+            if self.as_egg:
+                # there's no --always-unzip option we can pass to install
+                # command so we unable to save the installed-files.txt
+                return
+
+            def prepend_root(path):
+                if root is None or not os.path.isabs(path):
+                    return path
+                else:
+                    return change_root(root, path)
+
+            with open(record_filename) as f:
+                for line in f:
+                    directory = os.path.dirname(line)
+                    if directory.endswith('.egg-info'):
+                        egg_info_dir = prepend_root(directory)
+                        break
+                else:
+                    logger.warning(
+                        'Could not find .egg-info directory in install record'
+                        ' for %s',
+                        self,
+                    )
+                    # FIXME: put the record somewhere
+                    # FIXME: should this be an error?
+                    return
+            new_lines = []
+            with open(record_filename) as f:
+                for line in f:
+                    filename = line.strip()
+                    if os.path.isdir(filename):
+                        filename += os.path.sep
+                    new_lines.append(
+                        os.path.relpath(
+                            prepend_root(filename), egg_info_dir)
+                    )
+            inst_files_path = os.path.join(egg_info_dir, 'installed-files.txt')
+            with open(inst_files_path, 'w') as f:
+                f.write('\n'.join(new_lines) + '\n')
+        finally:
+            if os.path.exists(record_filename):
+                os.remove(record_filename)
+            rmtree(temp_location)
+
+    def ensure_has_source_dir(self, parent_dir):
+        """Ensure that a source_dir is set.
+
+        This will create a temporary build dir if the name of the requirement
+        isn't known yet.
+
+        :param parent_dir: The ideal pip parent_dir for the source_dir.
+            Generally src_dir for editables and build_dir for sdists.
+        :return: self.source_dir
+        """
+        if self.source_dir is None:
+            self.source_dir = self.build_location(parent_dir)
+        return self.source_dir
+
+    def get_install_args(self, global_options, record_filename, root, prefix):
+        install_args = [sys.executable, "-u"]
+        install_args.append('-c')
+        install_args.append(SETUPTOOLS_SHIM % self.setup_py)
+        install_args += list(global_options) + \
+            ['install', '--record', record_filename]
+
+        if not self.as_egg:
+            install_args += ['--single-version-externally-managed']
+
+        if root is not None:
+            install_args += ['--root', root]
+        if prefix is not None:
+            install_args += ['--prefix', prefix]
+
+        if self.pycompile:
+            install_args += ["--compile"]
+        else:
+            install_args += ["--no-compile"]
+
+        if running_under_virtualenv():
+            py_ver_str = 'python' + sysconfig.get_python_version()
+            install_args += ['--install-headers',
+                             os.path.join(sys.prefix, 'include', 'site',
+                                          py_ver_str, self.name)]
+
+        return install_args
+
+    def remove_temporary_source(self):
+        """Remove the source files from this requirement, if they are marked
+        for deletion"""
+        if self.source_dir and os.path.exists(
+                os.path.join(self.source_dir, PIP_DELETE_MARKER_FILENAME)):
+            logger.debug('Removing source in %s', self.source_dir)
+            rmtree(self.source_dir)
+        self.source_dir = None
+        if self._temp_build_dir and os.path.exists(self._temp_build_dir):
+            rmtree(self._temp_build_dir)
+        self._temp_build_dir = None
+
+    def install_editable(self, install_options,
+                         global_options=(), prefix=None):
+        logger.info('Running setup.py develop for %s', self.name)
+
+        if self.isolated:
+            global_options = list(global_options) + ["--no-user-cfg"]
+
+        if prefix:
+            prefix_param = ['--prefix={0}'.format(prefix)]
+            install_options = list(install_options) + prefix_param
+
+        with indent_log():
+            # FIXME: should we do --install-headers here too?
+            call_subprocess(
+                [
+                    sys.executable,
+                    '-c',
+                    SETUPTOOLS_SHIM % self.setup_py
+                ] +
+                list(global_options) +
+                ['develop', '--no-deps'] +
+                list(install_options),
+
+                cwd=self.setup_py_dir,
+                show_stdout=False)
+
+        self.install_succeeded = True
+
+    def check_if_exists(self):
+        """Find an installed distribution that satisfies or conflicts
+        with this requirement, and set self.satisfied_by or
+        self.conflicts_with appropriately.
+        """
+        if self.req is None:
+            return False
+        try:
+            # get_distribution() will resolve the entire list of requirements
+            # anyway, and we've already determined that we need the requirement
+            # in question, so strip the marker so that we don't try to
+            # evaluate it.
+            no_marker = Requirement(str(self.req))
+            no_marker.marker = None
+            self.satisfied_by = pkg_resources.get_distribution(str(no_marker))
+            if self.editable and self.satisfied_by:
+                self.conflicts_with = self.satisfied_by
+                # when installing editables, nothing pre-existing should ever
+                # satisfy
+                self.satisfied_by = None
+                return True
+        except pkg_resources.DistributionNotFound:
+            return False
+        except pkg_resources.VersionConflict:
+            existing_dist = pkg_resources.get_distribution(
+                self.req.name
+            )
+            if self.use_user_site:
+                if dist_in_usersite(existing_dist):
+                    self.conflicts_with = existing_dist
+                elif (running_under_virtualenv() and
+                        dist_in_site_packages(existing_dist)):
+                    raise InstallationError(
+                        "Will not install to the user site because it will "
+                        "lack sys.path precedence to %s in %s" %
+                        (existing_dist.project_name, existing_dist.location)
+                    )
+            else:
+                self.conflicts_with = existing_dist
+        return True
+
+    @property
+    def is_wheel(self):
+        return self.link and self.link.is_wheel
+
+    def move_wheel_files(self, wheeldir, root=None, prefix=None):
+        move_wheel_files(
+            self.name, self.req, wheeldir,
+            user=self.use_user_site,
+            home=self.target_dir,
+            root=root,
+            prefix=prefix,
+            pycompile=self.pycompile,
+            isolated=self.isolated,
+        )
+
+    def get_dist(self):
+        """Return a pkg_resources.Distribution built from self.egg_info_path"""
+        egg_info = self.egg_info_path('').rstrip('/')
+        base_dir = os.path.dirname(egg_info)
+        metadata = pkg_resources.PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        return pkg_resources.Distribution(
+            os.path.dirname(egg_info),
+            project_name=dist_name,
+            metadata=metadata)
+
+    @property
+    def has_hash_options(self):
+        """Return whether any known-good hashes are specified as options.
+
+        These activate --require-hashes mode; hashes specified as part of a
+        URL do not.
+
+        """
+        return bool(self.options.get('hashes', {}))
+
+    def hashes(self, trust_internet=True):
+        """Return a hash-comparer that considers my option- and URL-based
+        hashes to be known-good.
+
+        Hashes in URLs--ones embedded in the requirements file, not ones
+        downloaded from an index server--are almost peers with ones from
+        flags. They satisfy --require-hashes (whether it was implicitly or
+        explicitly activated) but do not activate it. md5 and sha224 are not
+        allowed in flags, which should nudge people toward good algos. We
+        always OR all hashes together, even ones from URLs.
+
+        :param trust_internet: Whether to trust URL-based (#md5=...) hashes
+            downloaded from the internet, as by populate_link()
+
+        """
+        good_hashes = self.options.get('hashes', {}).copy()
+        link = self.link if trust_internet else self.original_link
+        if link and link.hash:
+            good_hashes.setdefault(link.hash_name, []).append(link.hash)
+        return Hashes(good_hashes)
+
+
+def _strip_postfix(req):
+    """
+        Strip req postfix ( -dev, 0.2, etc )
+    """
+    # FIXME: use package_to_requirement?
+    match = re.search(r'^(.*?)(?:-dev|-\d.*)$', req)
+    if match:
+        # Strip off -dev, -0.2, etc.
+        req = match.group(1)
+    return req
+
+
+def parse_editable(editable_req, default_vcs=None):
+    """Parses an editable requirement into:
+        - a requirement name
+        - an URL
+        - extras
+        - editable options
+    Accepted requirements:
+        svn+http://blahblah@rev#egg=Foobar[baz]&subdirectory=version_subdir
+        .[some_extra]
+    """
+
+    from pip.index import Link
+
+    url = editable_req
+    extras = None
+
+    # If a file path is specified with extras, strip off the extras.
+    m = re.match(r'^(.+)(\[[^\]]+\])$', url)
+    if m:
+        url_no_extras = m.group(1)
+        extras = m.group(2)
+    else:
+        url_no_extras = url
+
+    if os.path.isdir(url_no_extras):
+        if not os.path.exists(os.path.join(url_no_extras, 'setup.py')):
+            raise InstallationError(
+                "Directory %r is not installable. File 'setup.py' not found." %
+                url_no_extras
+            )
+        # Treating it as code that has already been checked out
+        url_no_extras = path_to_url(url_no_extras)
+
+    if url_no_extras.lower().startswith('file:'):
+        package_name = Link(url_no_extras).egg_fragment
+        if extras:
+            return (
+                package_name,
+                url_no_extras,
+                Requirement("placeholder" + extras.lower()).extras,
+            )
+        else:
+            return package_name, url_no_extras, None
+
+    for version_control in vcs:
+        if url.lower().startswith('%s:' % version_control):
+            url = '%s+%s' % (version_control, url)
+            break
+
+    if '+' not in url:
+        if default_vcs:
+            warnings.warn(
+                "--default-vcs has been deprecated and will be removed in "
+                "the future.",
+                RemovedInPip10Warning,
+            )
+            url = default_vcs + '+' + url
+        else:
+            raise InstallationError(
+                '%s should either be a path to a local project or a VCS url '
+                'beginning with svn+, git+, hg+, or bzr+' %
+                editable_req
+            )
+
+    vc_type = url.split('+', 1)[0].lower()
+
+    if not vcs.get_backend(vc_type):
+        error_message = 'For --editable=%s only ' % editable_req + \
+            ', '.join([backend.name + '+URL' for backend in vcs.backends]) + \
+            ' is currently supported'
+        raise InstallationError(error_message)
+
+    package_name = Link(url).egg_fragment
+    if not package_name:
+        raise InstallationError(
+            "Could not detect requirement name, please specify one with #egg="
+        )
+    if not package_name:
+        raise InstallationError(
+            '--editable=%s is not the right format; it must have '
+            '#egg=Package' % editable_req
+        )
+    return _strip_postfix(package_name), url, None
diff --git a/venv1/lib/python3.5/site-packages/pip/req/req_set.py b/venv1/lib/python3.5/site-packages/pip/req/req_set.py
new file mode 100644
index 0000000..76aec06
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/req/req_set.py
@@ -0,0 +1,798 @@
+from __future__ import absolute_import
+
+from collections import defaultdict
+from itertools import chain
+import logging
+import os
+
+from pip._vendor import pkg_resources
+from pip._vendor import requests
+
+from pip.compat import expanduser
+from pip.download import (is_file_url, is_dir_url, is_vcs_url, url_to_path,
+                          unpack_url)
+from pip.exceptions import (InstallationError, BestVersionAlreadyInstalled,
+                            DistributionNotFound, PreviousBuildDirError,
+                            HashError, HashErrors, HashUnpinned,
+                            DirectoryUrlHashUnsupported, VcsHashUnsupported,
+                            UnsupportedPythonVersion)
+from pip.req.req_install import InstallRequirement
+from pip.utils import (
+    display_path, dist_in_usersite, ensure_dir, normalize_path)
+from pip.utils.hashes import MissingHashes
+from pip.utils.logging import indent_log
+from pip.utils.packaging import check_dist_requires_python
+from pip.vcs import vcs
+from pip.wheel import Wheel
+
+logger = logging.getLogger(__name__)
+
+
+class Requirements(object):
+
+    def __init__(self):
+        self._keys = []
+        self._dict = {}
+
+    def keys(self):
+        return self._keys
+
+    def values(self):
+        return [self._dict[key] for key in self._keys]
+
+    def __contains__(self, item):
+        return item in self._keys
+
+    def __setitem__(self, key, value):
+        if key not in self._keys:
+            self._keys.append(key)
+        self._dict[key] = value
+
+    def __getitem__(self, key):
+        return self._dict[key]
+
+    def __repr__(self):
+        values = ['%s: %s' % (repr(k), repr(self[k])) for k in self.keys()]
+        return 'Requirements({%s})' % ', '.join(values)
+
+
+class DistAbstraction(object):
+    """Abstracts out the wheel vs non-wheel prepare_files logic.
+
+    The requirements for anything installable are as follows:
+     - we must be able to determine the requirement name
+       (or we can't correctly handle the non-upgrade case).
+     - we must be able to generate a list of run-time dependencies
+       without installing any additional packages (or we would
+       have to either burn time by doing temporary isolated installs
+       or alternatively violate pips 'don't start installing unless
+       all requirements are available' rule - neither of which are
+       desirable).
+     - for packages with setup requirements, we must also be able
+       to determine their requirements without installing additional
+       packages (for the same reason as run-time dependencies)
+     - we must be able to create a Distribution object exposing the
+       above metadata.
+    """
+
+    def __init__(self, req_to_install):
+        self.req_to_install = req_to_install
+
+    def dist(self, finder):
+        """Return a setuptools Dist object."""
+        raise NotImplementedError(self.dist)
+
+    def prep_for_dist(self):
+        """Ensure that we can get a Dist for this requirement."""
+        raise NotImplementedError(self.dist)
+
+
+def make_abstract_dist(req_to_install):
+    """Factory to make an abstract dist object.
+
+    Preconditions: Either an editable req with a source_dir, or satisfied_by or
+    a wheel link, or a non-editable req with a source_dir.
+
+    :return: A concrete DistAbstraction.
+    """
+    if req_to_install.editable:
+        return IsSDist(req_to_install)
+    elif req_to_install.link and req_to_install.link.is_wheel:
+        return IsWheel(req_to_install)
+    else:
+        return IsSDist(req_to_install)
+
+
+class IsWheel(DistAbstraction):
+
+    def dist(self, finder):
+        return list(pkg_resources.find_distributions(
+            self.req_to_install.source_dir))[0]
+
+    def prep_for_dist(self):
+        # FIXME:https://github.com/pypa/pip/issues/1112
+        pass
+
+
+class IsSDist(DistAbstraction):
+
+    def dist(self, finder):
+        dist = self.req_to_install.get_dist()
+        # FIXME: shouldn't be globally added:
+        if dist.has_metadata('dependency_links.txt'):
+            finder.add_dependency_links(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+        return dist
+
+    def prep_for_dist(self):
+        self.req_to_install.run_egg_info()
+        self.req_to_install.assert_source_matches_version()
+
+
+class Installed(DistAbstraction):
+
+    def dist(self, finder):
+        return self.req_to_install.satisfied_by
+
+    def prep_for_dist(self):
+        pass
+
+
+class RequirementSet(object):
+
+    def __init__(self, build_dir, src_dir, download_dir, upgrade=False,
+                 upgrade_strategy=None, ignore_installed=False, as_egg=False,
+                 target_dir=None, ignore_dependencies=False,
+                 force_reinstall=False, use_user_site=False, session=None,
+                 pycompile=True, isolated=False, wheel_download_dir=None,
+                 wheel_cache=None, require_hashes=False,
+                 ignore_requires_python=False):
+        """Create a RequirementSet.
+
+        :param wheel_download_dir: Where still-packed .whl files should be
+            written to. If None they are written to the download_dir parameter.
+            Separate to download_dir to permit only keeping wheel archives for
+            pip wheel.
+        :param download_dir: Where still packed archives should be written to.
+            If None they are not saved, and are deleted immediately after
+            unpacking.
+        :param wheel_cache: The pip wheel cache, for passing to
+            InstallRequirement.
+        """
+        if session is None:
+            raise TypeError(
+                "RequirementSet() missing 1 required keyword argument: "
+                "'session'"
+            )
+
+        self.build_dir = build_dir
+        self.src_dir = src_dir
+        # XXX: download_dir and wheel_download_dir overlap semantically and may
+        # be combined if we're willing to have non-wheel archives present in
+        # the wheelhouse output by 'pip wheel'.
+        self.download_dir = download_dir
+        self.upgrade = upgrade
+        self.upgrade_strategy = upgrade_strategy
+        self.ignore_installed = ignore_installed
+        self.force_reinstall = force_reinstall
+        self.requirements = Requirements()
+        # Mapping of alias: real_name
+        self.requirement_aliases = {}
+        self.unnamed_requirements = []
+        self.ignore_dependencies = ignore_dependencies
+        self.ignore_requires_python = ignore_requires_python
+        self.successfully_downloaded = []
+        self.successfully_installed = []
+        self.reqs_to_cleanup = []
+        self.as_egg = as_egg
+        self.use_user_site = use_user_site
+        self.target_dir = target_dir  # set from --target option
+        self.session = session
+        self.pycompile = pycompile
+        self.isolated = isolated
+        if wheel_download_dir:
+            wheel_download_dir = normalize_path(wheel_download_dir)
+        self.wheel_download_dir = wheel_download_dir
+        self._wheel_cache = wheel_cache
+        self.require_hashes = require_hashes
+        # Maps from install_req -> dependencies_of_install_req
+        self._dependencies = defaultdict(list)
+
+    def __str__(self):
+        reqs = [req for req in self.requirements.values()
+                if not req.comes_from]
+        reqs.sort(key=lambda req: req.name.lower())
+        return ' '.join([str(req.req) for req in reqs])
+
+    def __repr__(self):
+        reqs = [req for req in self.requirements.values()]
+        reqs.sort(key=lambda req: req.name.lower())
+        reqs_str = ', '.join([str(req.req) for req in reqs])
+        return ('<%s object; %d requirement(s): %s>'
+                % (self.__class__.__name__, len(reqs), reqs_str))
+
+    def add_requirement(self, install_req, parent_req_name=None,
+                        extras_requested=None):
+        """Add install_req as a requirement to install.
+
+        :param parent_req_name: The name of the requirement that needed this
+            added. The name is used because when multiple unnamed requirements
+            resolve to the same name, we could otherwise end up with dependency
+            links that point outside the Requirements set. parent_req must
+            already be added. Note that None implies that this is a user
+            supplied requirement, vs an inferred one.
+        :param extras_requested: an iterable of extras used to evaluate the
+            environement markers.
+        :return: Additional requirements to scan. That is either [] if
+            the requirement is not applicable, or [install_req] if the
+            requirement is applicable and has just been added.
+        """
+        name = install_req.name
+        if not install_req.match_markers(extras_requested):
+            logger.warning("Ignoring %s: markers '%s' don't match your "
+                           "environment", install_req.name,
+                           install_req.markers)
+            return []
+
+        # This check has to come after we filter requirements with the
+        # environment markers.
+        if install_req.link and install_req.link.is_wheel:
+            wheel = Wheel(install_req.link.filename)
+            if not wheel.supported():
+                raise InstallationError(
+                    "%s is not a supported wheel on this platform." %
+                    wheel.filename
+                )
+
+        install_req.as_egg = self.as_egg
+        install_req.use_user_site = self.use_user_site
+        install_req.target_dir = self.target_dir
+        install_req.pycompile = self.pycompile
+        install_req.is_direct = (parent_req_name is None)
+
+        if not name:
+            # url or path requirement w/o an egg fragment
+            self.unnamed_requirements.append(install_req)
+            return [install_req]
+        else:
+            try:
+                existing_req = self.get_requirement(name)
+            except KeyError:
+                existing_req = None
+            if (parent_req_name is None and existing_req and not
+                    existing_req.constraint and
+                    existing_req.extras == install_req.extras and not
+                    existing_req.req.specifier == install_req.req.specifier):
+                raise InstallationError(
+                    'Double requirement given: %s (already in %s, name=%r)'
+                    % (install_req, existing_req, name))
+            if not existing_req:
+                # Add requirement
+                self.requirements[name] = install_req
+                # FIXME: what about other normalizations?  E.g., _ vs. -?
+                if name.lower() != name:
+                    self.requirement_aliases[name.lower()] = name
+                result = [install_req]
+            else:
+                # Assume there's no need to scan, and that we've already
+                # encountered this for scanning.
+                result = []
+                if not install_req.constraint and existing_req.constraint:
+                    if (install_req.link and not (existing_req.link and
+                       install_req.link.path == existing_req.link.path)):
+                        self.reqs_to_cleanup.append(install_req)
+                        raise InstallationError(
+                            "Could not satisfy constraints for '%s': "
+                            "installation from path or url cannot be "
+                            "constrained to a version" % name)
+                    # If we're now installing a constraint, mark the existing
+                    # object for real installation.
+                    existing_req.constraint = False
+                    existing_req.extras = tuple(
+                        sorted(set(existing_req.extras).union(
+                               set(install_req.extras))))
+                    logger.debug("Setting %s extras to: %s",
+                                 existing_req, existing_req.extras)
+                    # And now we need to scan this.
+                    result = [existing_req]
+                # Canonicalise to the already-added object for the backref
+                # check below.
+                install_req = existing_req
+            if parent_req_name:
+                parent_req = self.get_requirement(parent_req_name)
+                self._dependencies[parent_req].append(install_req)
+            return result
+
+    def has_requirement(self, project_name):
+        name = project_name.lower()
+        if (name in self.requirements and
+           not self.requirements[name].constraint or
+           name in self.requirement_aliases and
+           not self.requirements[self.requirement_aliases[name]].constraint):
+            return True
+        return False
+
+    @property
+    def has_requirements(self):
+        return list(req for req in self.requirements.values() if not
+                    req.constraint) or self.unnamed_requirements
+
+    @property
+    def is_download(self):
+        if self.download_dir:
+            self.download_dir = expanduser(self.download_dir)
+            if os.path.exists(self.download_dir):
+                return True
+            else:
+                logger.critical('Could not find download directory')
+                raise InstallationError(
+                    "Could not find or access download directory '%s'"
+                    % display_path(self.download_dir))
+        return False
+
+    def get_requirement(self, project_name):
+        for name in project_name, project_name.lower():
+            if name in self.requirements:
+                return self.requirements[name]
+            if name in self.requirement_aliases:
+                return self.requirements[self.requirement_aliases[name]]
+        raise KeyError("No project with the name %r" % project_name)
+
+    def uninstall(self, auto_confirm=False):
+        for req in self.requirements.values():
+            if req.constraint:
+                continue
+            req.uninstall(auto_confirm=auto_confirm)
+            req.commit_uninstall()
+
+    def prepare_files(self, finder):
+        """
+        Prepare process. Create temp directories, download and/or unpack files.
+        """
+        # make the wheelhouse
+        if self.wheel_download_dir:
+            ensure_dir(self.wheel_download_dir)
+
+        # If any top-level requirement has a hash specified, enter
+        # hash-checking mode, which requires hashes from all.
+        root_reqs = self.unnamed_requirements + self.requirements.values()
+        require_hashes = (self.require_hashes or
+                          any(req.has_hash_options for req in root_reqs))
+        if require_hashes and self.as_egg:
+            raise InstallationError(
+                '--egg is not allowed with --require-hashes mode, since it '
+                'delegates dependency resolution to setuptools and could thus '
+                'result in installation of unhashed packages.')
+
+        # Actually prepare the files, and collect any exceptions. Most hash
+        # exceptions cannot be checked ahead of time, because
+        # req.populate_link() needs to be called before we can make decisions
+        # based on link type.
+        discovered_reqs = []
+        hash_errors = HashErrors()
+        for req in chain(root_reqs, discovered_reqs):
+            try:
+                discovered_reqs.extend(self._prepare_file(
+                    finder,
+                    req,
+                    require_hashes=require_hashes,
+                    ignore_dependencies=self.ignore_dependencies))
+            except HashError as exc:
+                exc.req = req
+                hash_errors.append(exc)
+
+        if hash_errors:
+            raise hash_errors
+
+    def _is_upgrade_allowed(self, req):
+        return self.upgrade and (
+            self.upgrade_strategy == "eager" or (
+                self.upgrade_strategy == "only-if-needed" and req.is_direct
+            )
+        )
+
+    def _check_skip_installed(self, req_to_install, finder):
+        """Check if req_to_install should be skipped.
+
+        This will check if the req is installed, and whether we should upgrade
+        or reinstall it, taking into account all the relevant user options.
+
+        After calling this req_to_install will only have satisfied_by set to
+        None if the req_to_install is to be upgraded/reinstalled etc. Any
+        other value will be a dist recording the current thing installed that
+        satisfies the requirement.
+
+        Note that for vcs urls and the like we can't assess skipping in this
+        routine - we simply identify that we need to pull the thing down,
+        then later on it is pulled down and introspected to assess upgrade/
+        reinstalls etc.
+
+        :return: A text reason for why it was skipped, or None.
+        """
+        # Check whether to upgrade/reinstall this req or not.
+        req_to_install.check_if_exists()
+        if req_to_install.satisfied_by:
+            upgrade_allowed = self._is_upgrade_allowed(req_to_install)
+
+            # Is the best version is installed.
+            best_installed = False
+
+            if upgrade_allowed:
+                # For link based requirements we have to pull the
+                # tree down and inspect to assess the version #, so
+                # its handled way down.
+                if not (self.force_reinstall or req_to_install.link):
+                    try:
+                        finder.find_requirement(
+                            req_to_install, upgrade_allowed)
+                    except BestVersionAlreadyInstalled:
+                        best_installed = True
+                    except DistributionNotFound:
+                        # No distribution found, so we squash the
+                        # error - it will be raised later when we
+                        # re-try later to do the install.
+                        # Why don't we just raise here?
+                        pass
+
+                if not best_installed:
+                    # don't uninstall conflict if user install and
+                    # conflict is not user install
+                    if not (self.use_user_site and not
+                            dist_in_usersite(req_to_install.satisfied_by)):
+                        req_to_install.conflicts_with = \
+                            req_to_install.satisfied_by
+                    req_to_install.satisfied_by = None
+
+            # Figure out a nice message to say why we're skipping this.
+            if best_installed:
+                skip_reason = 'already up-to-date'
+            elif self.upgrade_strategy == "only-if-needed":
+                skip_reason = 'not upgraded as not directly required'
+            else:
+                skip_reason = 'already satisfied'
+
+            return skip_reason
+        else:
+            return None
+
+    def _prepare_file(self,
+                      finder,
+                      req_to_install,
+                      require_hashes=False,
+                      ignore_dependencies=False):
+        """Prepare a single requirements file.
+
+        :return: A list of additional InstallRequirements to also install.
+        """
+        # Tell user what we are doing for this requirement:
+        # obtain (editable), skipping, processing (local url), collecting
+        # (remote url or package name)
+        if req_to_install.constraint or req_to_install.prepared:
+            return []
+
+        req_to_install.prepared = True
+
+        # ###################### #
+        # # print log messages # #
+        # ###################### #
+        if req_to_install.editable:
+            logger.info('Obtaining %s', req_to_install)
+        else:
+            # satisfied_by is only evaluated by calling _check_skip_installed,
+            # so it must be None here.
+            assert req_to_install.satisfied_by is None
+            if not self.ignore_installed:
+                skip_reason = self._check_skip_installed(
+                    req_to_install, finder)
+
+            if req_to_install.satisfied_by:
+                assert skip_reason is not None, (
+                    '_check_skip_installed returned None but '
+                    'req_to_install.satisfied_by is set to %r'
+                    % (req_to_install.satisfied_by,))
+                logger.info(
+                    'Requirement %s: %s', skip_reason,
+                    req_to_install)
+            else:
+                if (req_to_install.link and
+                        req_to_install.link.scheme == 'file'):
+                    path = url_to_path(req_to_install.link.url)
+                    logger.info('Processing %s', display_path(path))
+                else:
+                    logger.info('Collecting %s', req_to_install)
+
+        with indent_log():
+            # ################################ #
+            # # vcs update or unpack archive # #
+            # ################################ #
+            if req_to_install.editable:
+                if require_hashes:
+                    raise InstallationError(
+                        'The editable requirement %s cannot be installed when '
+                        'requiring hashes, because there is no single file to '
+                        'hash.' % req_to_install)
+                req_to_install.ensure_has_source_dir(self.src_dir)
+                req_to_install.update_editable(not self.is_download)
+                abstract_dist = make_abstract_dist(req_to_install)
+                abstract_dist.prep_for_dist()
+                if self.is_download:
+                    req_to_install.archive(self.download_dir)
+                req_to_install.check_if_exists()
+            elif req_to_install.satisfied_by:
+                if require_hashes:
+                    logger.debug(
+                        'Since it is already installed, we are trusting this '
+                        'package without checking its hash. To ensure a '
+                        'completely repeatable environment, install into an '
+                        'empty virtualenv.')
+                abstract_dist = Installed(req_to_install)
+            else:
+                # @@ if filesystem packages are not marked
+                # editable in a req, a non deterministic error
+                # occurs when the script attempts to unpack the
+                # build directory
+                req_to_install.ensure_has_source_dir(self.build_dir)
+                # If a checkout exists, it's unwise to keep going.  version
+                # inconsistencies are logged later, but do not fail the
+                # installation.
+                # FIXME: this won't upgrade when there's an existing
+                # package unpacked in `req_to_install.source_dir`
+                if os.path.exists(
+                        os.path.join(req_to_install.source_dir, 'setup.py')):
+                    raise PreviousBuildDirError(
+                        "pip can't proceed with requirements '%s' due to a"
+                        " pre-existing build directory (%s). This is "
+                        "likely due to a previous installation that failed"
+                        ". pip is being responsible and not assuming it "
+                        "can delete this. Please delete it and try again."
+                        % (req_to_install, req_to_install.source_dir)
+                    )
+                req_to_install.populate_link(
+                    finder,
+                    self._is_upgrade_allowed(req_to_install),
+                    require_hashes
+                )
+                # We can't hit this spot and have populate_link return None.
+                # req_to_install.satisfied_by is None here (because we're
+                # guarded) and upgrade has no impact except when satisfied_by
+                # is not None.
+                # Then inside find_requirement existing_applicable -> False
+                # If no new versions are found, DistributionNotFound is raised,
+                # otherwise a result is guaranteed.
+                assert req_to_install.link
+                link = req_to_install.link
+
+                # Now that we have the real link, we can tell what kind of
+                # requirements we have and raise some more informative errors
+                # than otherwise. (For example, we can raise VcsHashUnsupported
+                # for a VCS URL rather than HashMissing.)
+                if require_hashes:
+                    # We could check these first 2 conditions inside
+                    # unpack_url and save repetition of conditions, but then
+                    # we would report less-useful error messages for
+                    # unhashable requirements, complaining that there's no
+                    # hash provided.
+                    if is_vcs_url(link):
+                        raise VcsHashUnsupported()
+                    elif is_file_url(link) and is_dir_url(link):
+                        raise DirectoryUrlHashUnsupported()
+                    if (not req_to_install.original_link and
+                            not req_to_install.is_pinned):
+                        # Unpinned packages are asking for trouble when a new
+                        # version is uploaded. This isn't a security check, but
+                        # it saves users a surprising hash mismatch in the
+                        # future.
+                        #
+                        # file:/// URLs aren't pinnable, so don't complain
+                        # about them not being pinned.
+                        raise HashUnpinned()
+                hashes = req_to_install.hashes(
+                    trust_internet=not require_hashes)
+                if require_hashes and not hashes:
+                    # Known-good hashes are missing for this requirement, so
+                    # shim it with a facade object that will provoke hash
+                    # computation and then raise a HashMissing exception
+                    # showing the user what the hash should be.
+                    hashes = MissingHashes()
+
+                try:
+                    download_dir = self.download_dir
+                    # We always delete unpacked sdists after pip ran.
+                    autodelete_unpacked = True
+                    if req_to_install.link.is_wheel \
+                            and self.wheel_download_dir:
+                        # when doing 'pip wheel` we download wheels to a
+                        # dedicated dir.
+                        download_dir = self.wheel_download_dir
+                    if req_to_install.link.is_wheel:
+                        if download_dir:
+                            # When downloading, we only unpack wheels to get
+                            # metadata.
+                            autodelete_unpacked = True
+                        else:
+                            # When installing a wheel, we use the unpacked
+                            # wheel.
+                            autodelete_unpacked = False
+                    unpack_url(
+                        req_to_install.link, req_to_install.source_dir,
+                        download_dir, autodelete_unpacked,
+                        session=self.session, hashes=hashes)
+                except requests.HTTPError as exc:
+                    logger.critical(
+                        'Could not install requirement %s because '
+                        'of error %s',
+                        req_to_install,
+                        exc,
+                    )
+                    raise InstallationError(
+                        'Could not install requirement %s because '
+                        'of HTTP error %s for URL %s' %
+                        (req_to_install, exc, req_to_install.link)
+                    )
+                abstract_dist = make_abstract_dist(req_to_install)
+                abstract_dist.prep_for_dist()
+                if self.is_download:
+                    # Make a .zip of the source_dir we already created.
+                    if req_to_install.link.scheme in vcs.all_schemes:
+                        req_to_install.archive(self.download_dir)
+                # req_to_install.req is only avail after unpack for URL
+                # pkgs repeat check_if_exists to uninstall-on-upgrade
+                # (#14)
+                if not self.ignore_installed:
+                    req_to_install.check_if_exists()
+                if req_to_install.satisfied_by:
+                    if self.upgrade or self.ignore_installed:
+                        # don't uninstall conflict if user install and
+                        # conflict is not user install
+                        if not (self.use_user_site and not
+                                dist_in_usersite(
+                                    req_to_install.satisfied_by)):
+                            req_to_install.conflicts_with = \
+                                req_to_install.satisfied_by
+                        req_to_install.satisfied_by = None
+                    else:
+                        logger.info(
+                            'Requirement already satisfied (use '
+                            '--upgrade to upgrade): %s',
+                            req_to_install,
+                        )
+
+            # ###################### #
+            # # parse dependencies # #
+            # ###################### #
+            dist = abstract_dist.dist(finder)
+            try:
+                check_dist_requires_python(dist)
+            except UnsupportedPythonVersion as e:
+                if self.ignore_requires_python:
+                    logger.warning(e.args[0])
+                else:
+                    req_to_install.remove_temporary_source()
+                    raise
+            more_reqs = []
+
+            def add_req(subreq, extras_requested):
+                sub_install_req = InstallRequirement(
+                    str(subreq),
+                    req_to_install,
+                    isolated=self.isolated,
+                    wheel_cache=self._wheel_cache,
+                )
+                more_reqs.extend(self.add_requirement(
+                    sub_install_req, req_to_install.name,
+                    extras_requested=extras_requested))
+
+            # We add req_to_install before its dependencies, so that we
+            # can refer to it when adding dependencies.
+            if not self.has_requirement(req_to_install.name):
+                # 'unnamed' requirements will get added here
+                self.add_requirement(req_to_install, None)
+
+            if not ignore_dependencies:
+                if (req_to_install.extras):
+                    logger.debug(
+                        "Installing extra requirements: %r",
+                        ','.join(req_to_install.extras),
+                    )
+                missing_requested = sorted(
+                    set(req_to_install.extras) - set(dist.extras)
+                )
+                for missing in missing_requested:
+                    logger.warning(
+                        '%s does not provide the extra \'%s\'',
+                        dist, missing
+                    )
+
+                available_requested = sorted(
+                    set(dist.extras) & set(req_to_install.extras)
+                )
+                for subreq in dist.requires(available_requested):
+                    add_req(subreq, extras_requested=available_requested)
+
+            # cleanup tmp src
+            self.reqs_to_cleanup.append(req_to_install)
+
+            if not req_to_install.editable and not req_to_install.satisfied_by:
+                # XXX: --no-install leads this to report 'Successfully
+                # downloaded' for only non-editable reqs, even though we took
+                # action on them.
+                self.successfully_downloaded.append(req_to_install)
+
+        return more_reqs
+
+    def cleanup_files(self):
+        """Clean up files, remove builds."""
+        logger.debug('Cleaning up...')
+        with indent_log():
+            for req in self.reqs_to_cleanup:
+                req.remove_temporary_source()
+
+    def _to_install(self):
+        """Create the installation order.
+
+        The installation order is topological - requirements are installed
+        before the requiring thing. We break cycles at an arbitrary point,
+        and make no other guarantees.
+        """
+        # The current implementation, which we may change at any point
+        # installs the user specified things in the order given, except when
+        # dependencies must come earlier to achieve topological order.
+        order = []
+        ordered_reqs = set()
+
+        def schedule(req):
+            if req.satisfied_by or req in ordered_reqs:
+                return
+            if req.constraint:
+                return
+            ordered_reqs.add(req)
+            for dep in self._dependencies[req]:
+                schedule(dep)
+            order.append(req)
+        for install_req in self.requirements.values():
+            schedule(install_req)
+        return order
+
+    def install(self, install_options, global_options=(), *args, **kwargs):
+        """
+        Install everything in this set (after having downloaded and unpacked
+        the packages)
+        """
+        to_install = self._to_install()
+
+        if to_install:
+            logger.info(
+                'Installing collected packages: %s',
+                ', '.join([req.name for req in to_install]),
+            )
+
+        with indent_log():
+            for requirement in to_install:
+                if requirement.conflicts_with:
+                    logger.info(
+                        'Found existing installation: %s',
+                        requirement.conflicts_with,
+                    )
+                    with indent_log():
+                        requirement.uninstall(auto_confirm=True)
+                try:
+                    requirement.install(
+                        install_options,
+                        global_options,
+                        *args,
+                        **kwargs
+                    )
+                except:
+                    # if install did not succeed, rollback previous uninstall
+                    if (requirement.conflicts_with and not
+                            requirement.install_succeeded):
+                        requirement.rollback_uninstall()
+                    raise
+                else:
+                    if (requirement.conflicts_with and
+                            requirement.install_succeeded):
+                        requirement.commit_uninstall()
+                requirement.remove_temporary_source()
+
+        self.successfully_installed = to_install
diff --git a/venv1/lib/python3.5/site-packages/pip/req/req_uninstall.py b/venv1/lib/python3.5/site-packages/pip/req/req_uninstall.py
new file mode 100644
index 0000000..5248430
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/req/req_uninstall.py
@@ -0,0 +1,195 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+from pip.compat import uses_pycache, WINDOWS, cache_from_source
+from pip.exceptions import UninstallationError
+from pip.utils import rmtree, ask, is_local, renames, normalize_path
+from pip.utils.logging import indent_log
+
+
+logger = logging.getLogger(__name__)
+
+
+class UninstallPathSet(object):
+    """A set of file paths to be removed in the uninstallation of a
+    requirement."""
+    def __init__(self, dist):
+        self.paths = set()
+        self._refuse = set()
+        self.pth = {}
+        self.dist = dist
+        self.save_dir = None
+        self._moved_paths = []
+
+    def _permitted(self, path):
+        """
+        Return True if the given path is one we are permitted to
+        remove/modify, False otherwise.
+
+        """
+        return is_local(path)
+
+    def add(self, path):
+        head, tail = os.path.split(path)
+
+        # we normalize the head to resolve parent directory symlinks, but not
+        # the tail, since we only want to uninstall symlinks, not their targets
+        path = os.path.join(normalize_path(head), os.path.normcase(tail))
+
+        if not os.path.exists(path):
+            return
+        if self._permitted(path):
+            self.paths.add(path)
+        else:
+            self._refuse.add(path)
+
+        # __pycache__ files can show up after 'installed-files.txt' is created,
+        # due to imports
+        if os.path.splitext(path)[1] == '.py' and uses_pycache:
+            self.add(cache_from_source(path))
+
+    def add_pth(self, pth_file, entry):
+        pth_file = normalize_path(pth_file)
+        if self._permitted(pth_file):
+            if pth_file not in self.pth:
+                self.pth[pth_file] = UninstallPthEntries(pth_file)
+            self.pth[pth_file].add(entry)
+        else:
+            self._refuse.add(pth_file)
+
+    def compact(self, paths):
+        """Compact a path set to contain the minimal number of paths
+        necessary to contain all paths in the set. If /a/path/ and
+        /a/path/to/a/file.txt are both in the set, leave only the
+        shorter path."""
+        short_paths = set()
+        for path in sorted(paths, key=len):
+            if not any([
+                    (path.startswith(shortpath) and
+                     path[len(shortpath.rstrip(os.path.sep))] == os.path.sep)
+                    for shortpath in short_paths]):
+                short_paths.add(path)
+        return short_paths
+
+    def _stash(self, path):
+        return os.path.join(
+            self.save_dir, os.path.splitdrive(path)[1].lstrip(os.path.sep))
+
+    def remove(self, auto_confirm=False):
+        """Remove paths in ``self.paths`` with confirmation (unless
+        ``auto_confirm`` is True)."""
+        if not self.paths:
+            logger.info(
+                "Can't uninstall '%s'. No files were found to uninstall.",
+                self.dist.project_name,
+            )
+            return
+        logger.info(
+            'Uninstalling %s-%s:',
+            self.dist.project_name, self.dist.version
+        )
+
+        with indent_log():
+            paths = sorted(self.compact(self.paths))
+
+            if auto_confirm:
+                response = 'y'
+            else:
+                for path in paths:
+                    logger.info(path)
+                response = ask('Proceed (y/n)? ', ('y', 'n'))
+            if self._refuse:
+                logger.info('Not removing or modifying (outside of prefix):')
+                for path in self.compact(self._refuse):
+                    logger.info(path)
+            if response == 'y':
+                self.save_dir = tempfile.mkdtemp(suffix='-uninstall',
+                                                 prefix='pip-')
+                for path in paths:
+                    new_path = self._stash(path)
+                    logger.debug('Removing file or directory %s', path)
+                    self._moved_paths.append(path)
+                    renames(path, new_path)
+                for pth in self.pth.values():
+                    pth.remove()
+                logger.info(
+                    'Successfully uninstalled %s-%s',
+                    self.dist.project_name, self.dist.version
+                )
+
+    def rollback(self):
+        """Rollback the changes previously made by remove()."""
+        if self.save_dir is None:
+            logger.error(
+                "Can't roll back %s; was not uninstalled",
+                self.dist.project_name,
+            )
+            return False
+        logger.info('Rolling back uninstall of %s', self.dist.project_name)
+        for path in self._moved_paths:
+            tmp_path = self._stash(path)
+            logger.debug('Replacing %s', path)
+            renames(tmp_path, path)
+        for pth in self.pth.values():
+            pth.rollback()
+
+    def commit(self):
+        """Remove temporary save dir: rollback will no longer be possible."""
+        if self.save_dir is not None:
+            rmtree(self.save_dir)
+            self.save_dir = None
+            self._moved_paths = []
+
+
+class UninstallPthEntries(object):
+    def __init__(self, pth_file):
+        if not os.path.isfile(pth_file):
+            raise UninstallationError(
+                "Cannot remove entries from nonexistent file %s" % pth_file
+            )
+        self.file = pth_file
+        self.entries = set()
+        self._saved_lines = None
+
+    def add(self, entry):
+        entry = os.path.normcase(entry)
+        # On Windows, os.path.normcase converts the entry to use
+        # backslashes.  This is correct for entries that describe absolute
+        # paths outside of site-packages, but all the others use forward
+        # slashes.
+        if WINDOWS and not os.path.splitdrive(entry)[0]:
+            entry = entry.replace('\\', '/')
+        self.entries.add(entry)
+
+    def remove(self):
+        logger.debug('Removing pth entries from %s:', self.file)
+        with open(self.file, 'rb') as fh:
+            # windows uses '\r\n' with py3k, but uses '\n' with py2.x
+            lines = fh.readlines()
+            self._saved_lines = lines
+        if any(b'\r\n' in line for line in lines):
+            endline = '\r\n'
+        else:
+            endline = '\n'
+        for entry in self.entries:
+            try:
+                logger.debug('Removing entry: %s', entry)
+                lines.remove((entry + endline).encode("utf-8"))
+            except ValueError:
+                pass
+        with open(self.file, 'wb') as fh:
+            fh.writelines(lines)
+
+    def rollback(self):
+        if self._saved_lines is None:
+            logger.error(
+                'Cannot roll back changes to %s, none were made', self.file
+            )
+            return False
+        logger.debug('Rolling %s back to previous state', self.file)
+        with open(self.file, 'wb') as fh:
+            fh.writelines(self._saved_lines)
+        return True
diff --git a/venv1/lib/python3.5/site-packages/pip/status_codes.py b/venv1/lib/python3.5/site-packages/pip/status_codes.py
new file mode 100644
index 0000000..275360a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/status_codes.py
@@ -0,0 +1,8 @@
+from __future__ import absolute_import
+
+SUCCESS = 0
+ERROR = 1
+UNKNOWN_ERROR = 2
+VIRTUALENV_NOT_FOUND = 3
+PREVIOUS_BUILD_DIR_ERROR = 4
+NO_MATCHES_FOUND = 23
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/__init__.py b/venv1/lib/python3.5/site-packages/pip/utils/__init__.py
new file mode 100644
index 0000000..815bd33
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/__init__.py
@@ -0,0 +1,852 @@
+from __future__ import absolute_import
+
+from collections import deque
+import contextlib
+import errno
+import io
+import locale
+# we have a submodule named 'logging' which would shadow this if we used the
+# regular name:
+import logging as std_logging
+import re
+import os
+import posixpath
+import shutil
+import stat
+import subprocess
+import sys
+import tarfile
+import zipfile
+
+from pip.exceptions import InstallationError
+from pip.compat import console_to_str, expanduser, stdlib_pkgs
+from pip.locations import (
+    site_packages, user_site, running_under_virtualenv, virtualenv_no_global,
+    write_delete_marker_file,
+)
+from pip._vendor import pkg_resources
+from pip._vendor.six.moves import input
+from pip._vendor.six import PY2
+from pip._vendor.retrying import retry
+
+if PY2:
+    from io import BytesIO as StringIO
+else:
+    from io import StringIO
+
+__all__ = ['rmtree', 'display_path', 'backup_dir',
+           'ask', 'splitext',
+           'format_size', 'is_installable_dir',
+           'is_svn_page', 'file_contents',
+           'split_leading_dir', 'has_leading_dir',
+           'normalize_path',
+           'renames', 'get_terminal_size', 'get_prog',
+           'unzip_file', 'untar_file', 'unpack_file', 'call_subprocess',
+           'captured_stdout', 'ensure_dir',
+           'ARCHIVE_EXTENSIONS', 'SUPPORTED_EXTENSIONS',
+           'get_installed_version']
+
+
+logger = std_logging.getLogger(__name__)
+
+BZ2_EXTENSIONS = ('.tar.bz2', '.tbz')
+XZ_EXTENSIONS = ('.tar.xz', '.txz', '.tlz', '.tar.lz', '.tar.lzma')
+ZIP_EXTENSIONS = ('.zip', '.whl')
+TAR_EXTENSIONS = ('.tar.gz', '.tgz', '.tar')
+ARCHIVE_EXTENSIONS = (
+    ZIP_EXTENSIONS + BZ2_EXTENSIONS + TAR_EXTENSIONS + XZ_EXTENSIONS)
+SUPPORTED_EXTENSIONS = ZIP_EXTENSIONS + TAR_EXTENSIONS
+try:
+    import bz2  # noqa
+    SUPPORTED_EXTENSIONS += BZ2_EXTENSIONS
+except ImportError:
+    logger.debug('bz2 module is not available')
+
+try:
+    # Only for Python 3.3+
+    import lzma  # noqa
+    SUPPORTED_EXTENSIONS += XZ_EXTENSIONS
+except ImportError:
+    logger.debug('lzma module is not available')
+
+
+def import_or_raise(pkg_or_module_string, ExceptionType, *args, **kwargs):
+    try:
+        return __import__(pkg_or_module_string)
+    except ImportError:
+        raise ExceptionType(*args, **kwargs)
+
+
+def ensure_dir(path):
+    """os.path.makedirs without EEXIST."""
+    try:
+        os.makedirs(path)
+    except OSError as e:
+        if e.errno != errno.EEXIST:
+            raise
+
+
+def get_prog():
+    try:
+        if os.path.basename(sys.argv[0]) in ('__main__.py', '-c'):
+            return "%s -m pip" % sys.executable
+    except (AttributeError, TypeError, IndexError):
+        pass
+    return 'pip'
+
+
+# Retry every half second for up to 3 seconds
+@retry(stop_max_delay=3000, wait_fixed=500)
+def rmtree(dir, ignore_errors=False):
+    shutil.rmtree(dir, ignore_errors=ignore_errors,
+                  onerror=rmtree_errorhandler)
+
+
+def rmtree_errorhandler(func, path, exc_info):
+    """On Windows, the files in .svn are read-only, so when rmtree() tries to
+    remove them, an exception is thrown.  We catch that here, remove the
+    read-only attribute, and hopefully continue without problems."""
+    # if file type currently read only
+    if os.stat(path).st_mode & stat.S_IREAD:
+        # convert to read/write
+        os.chmod(path, stat.S_IWRITE)
+        # use the original function to repeat the operation
+        func(path)
+        return
+    else:
+        raise
+
+
+def display_path(path):
+    """Gives the display value for a given path, making it relative to cwd
+    if possible."""
+    path = os.path.normcase(os.path.abspath(path))
+    if sys.version_info[0] == 2:
+        path = path.decode(sys.getfilesystemencoding(), 'replace')
+        path = path.encode(sys.getdefaultencoding(), 'replace')
+    if path.startswith(os.getcwd() + os.path.sep):
+        path = '.' + path[len(os.getcwd()):]
+    return path
+
+
+def backup_dir(dir, ext='.bak'):
+    """Figure out the name of a directory to back up the given dir to
+    (adding .bak, .bak2, etc)"""
+    n = 1
+    extension = ext
+    while os.path.exists(dir + extension):
+        n += 1
+        extension = ext + str(n)
+    return dir + extension
+
+
+def ask_path_exists(message, options):
+    for action in os.environ.get('PIP_EXISTS_ACTION', '').split():
+        if action in options:
+            return action
+    return ask(message, options)
+
+
+def ask(message, options):
+    """Ask the message interactively, with the given possible responses"""
+    while 1:
+        if os.environ.get('PIP_NO_INPUT'):
+            raise Exception(
+                'No input was expected ($PIP_NO_INPUT set); question: %s' %
+                message
+            )
+        response = input(message)
+        response = response.strip().lower()
+        if response not in options:
+            print(
+                'Your response (%r) was not one of the expected responses: '
+                '%s' % (response, ', '.join(options))
+            )
+        else:
+            return response
+
+
+def format_size(bytes):
+    if bytes > 1000 * 1000:
+        return '%.1fMB' % (bytes / 1000.0 / 1000)
+    elif bytes > 10 * 1000:
+        return '%ikB' % (bytes / 1000)
+    elif bytes > 1000:
+        return '%.1fkB' % (bytes / 1000.0)
+    else:
+        return '%ibytes' % bytes
+
+
+def is_installable_dir(path):
+    """Return True if `path` is a directory containing a setup.py file."""
+    if not os.path.isdir(path):
+        return False
+    setup_py = os.path.join(path, 'setup.py')
+    if os.path.isfile(setup_py):
+        return True
+    return False
+
+
+def is_svn_page(html):
+    """
+    Returns true if the page appears to be the index page of an svn repository
+    """
+    return (re.search(r'<title>[^<]*Revision \d+:', html) and
+            re.search(r'Powered by (?:<a[^>]*?>)?Subversion', html, re.I))
+
+
+def file_contents(filename):
+    with open(filename, 'rb') as fp:
+        return fp.read().decode('utf-8')
+
+
+def read_chunks(file, size=io.DEFAULT_BUFFER_SIZE):
+    """Yield pieces of data from a file-like object until EOF."""
+    while True:
+        chunk = file.read(size)
+        if not chunk:
+            break
+        yield chunk
+
+
+def split_leading_dir(path):
+    path = path.lstrip('/').lstrip('\\')
+    if '/' in path and (('\\' in path and path.find('/') < path.find('\\')) or
+                        '\\' not in path):
+        return path.split('/', 1)
+    elif '\\' in path:
+        return path.split('\\', 1)
+    else:
+        return path, ''
+
+
+def has_leading_dir(paths):
+    """Returns true if all the paths have the same leading path name
+    (i.e., everything is in one subdirectory in an archive)"""
+    common_prefix = None
+    for path in paths:
+        prefix, rest = split_leading_dir(path)
+        if not prefix:
+            return False
+        elif common_prefix is None:
+            common_prefix = prefix
+        elif prefix != common_prefix:
+            return False
+    return True
+
+
+def normalize_path(path, resolve_symlinks=True):
+    """
+    Convert a path to its canonical, case-normalized, absolute version.
+
+    """
+    path = expanduser(path)
+    if resolve_symlinks:
+        path = os.path.realpath(path)
+    else:
+        path = os.path.abspath(path)
+    return os.path.normcase(path)
+
+
+def splitext(path):
+    """Like os.path.splitext, but take off .tar too"""
+    base, ext = posixpath.splitext(path)
+    if base.lower().endswith('.tar'):
+        ext = base[-4:] + ext
+        base = base[:-4]
+    return base, ext
+
+
+def renames(old, new):
+    """Like os.renames(), but handles renaming across devices."""
+    # Implementation borrowed from os.renames().
+    head, tail = os.path.split(new)
+    if head and tail and not os.path.exists(head):
+        os.makedirs(head)
+
+    shutil.move(old, new)
+
+    head, tail = os.path.split(old)
+    if head and tail:
+        try:
+            os.removedirs(head)
+        except OSError:
+            pass
+
+
+def is_local(path):
+    """
+    Return True if path is within sys.prefix, if we're running in a virtualenv.
+
+    If we're not in a virtualenv, all paths are considered "local."
+
+    """
+    if not running_under_virtualenv():
+        return True
+    return normalize_path(path).startswith(normalize_path(sys.prefix))
+
+
+def dist_is_local(dist):
+    """
+    Return True if given Distribution object is installed locally
+    (i.e. within current virtualenv).
+
+    Always True if we're not in a virtualenv.
+
+    """
+    return is_local(dist_location(dist))
+
+
+def dist_in_usersite(dist):
+    """
+    Return True if given Distribution is installed in user site.
+    """
+    norm_path = normalize_path(dist_location(dist))
+    return norm_path.startswith(normalize_path(user_site))
+
+
+def dist_in_site_packages(dist):
+    """
+    Return True if given Distribution is installed in
+    distutils.sysconfig.get_python_lib().
+    """
+    return normalize_path(
+        dist_location(dist)
+    ).startswith(normalize_path(site_packages))
+
+
+def dist_is_editable(dist):
+    """Is distribution an editable install?"""
+    for path_item in sys.path:
+        egg_link = os.path.join(path_item, dist.project_name + '.egg-link')
+        if os.path.isfile(egg_link):
+            return True
+    return False
+
+
+def get_installed_distributions(local_only=True,
+                                skip=stdlib_pkgs,
+                                include_editables=True,
+                                editables_only=False,
+                                user_only=False):
+    """
+    Return a list of installed Distribution objects.
+
+    If ``local_only`` is True (default), only return installations
+    local to the current virtualenv, if in a virtualenv.
+
+    ``skip`` argument is an iterable of lower-case project names to
+    ignore; defaults to stdlib_pkgs
+
+    If ``editables`` is False, don't report editables.
+
+    If ``editables_only`` is True , only report editables.
+
+    If ``user_only`` is True , only report installations in the user
+    site directory.
+
+    """
+    if local_only:
+        local_test = dist_is_local
+    else:
+        def local_test(d):
+            return True
+
+    if include_editables:
+        def editable_test(d):
+            return True
+    else:
+        def editable_test(d):
+            return not dist_is_editable(d)
+
+    if editables_only:
+        def editables_only_test(d):
+            return dist_is_editable(d)
+    else:
+        def editables_only_test(d):
+            return True
+
+    if user_only:
+        user_test = dist_in_usersite
+    else:
+        def user_test(d):
+            return True
+
+    return [d for d in pkg_resources.working_set
+            if local_test(d) and
+            d.key not in skip and
+            editable_test(d) and
+            editables_only_test(d) and
+            user_test(d)
+            ]
+
+
+def egg_link_path(dist):
+    """
+    Return the path for the .egg-link file if it exists, otherwise, None.
+
+    There's 3 scenarios:
+    1) not in a virtualenv
+       try to find in site.USER_SITE, then site_packages
+    2) in a no-global virtualenv
+       try to find in site_packages
+    3) in a yes-global virtualenv
+       try to find in site_packages, then site.USER_SITE
+       (don't look in global location)
+
+    For #1 and #3, there could be odd cases, where there's an egg-link in 2
+    locations.
+
+    This method will just return the first one found.
+    """
+    sites = []
+    if running_under_virtualenv():
+        if virtualenv_no_global():
+            sites.append(site_packages)
+        else:
+            sites.append(site_packages)
+            if user_site:
+                sites.append(user_site)
+    else:
+        if user_site:
+            sites.append(user_site)
+        sites.append(site_packages)
+
+    for site in sites:
+        egglink = os.path.join(site, dist.project_name) + '.egg-link'
+        if os.path.isfile(egglink):
+            return egglink
+
+
+def dist_location(dist):
+    """
+    Get the site-packages location of this distribution. Generally
+    this is dist.location, except in the case of develop-installed
+    packages, where dist.location is the source code location, and we
+    want to know where the egg-link file is.
+
+    """
+    egg_link = egg_link_path(dist)
+    if egg_link:
+        return egg_link
+    return dist.location
+
+
+def get_terminal_size():
+    """Returns a tuple (x, y) representing the width(x) and the height(x)
+    in characters of the terminal window."""
+    def ioctl_GWINSZ(fd):
+        try:
+            import fcntl
+            import termios
+            import struct
+            cr = struct.unpack(
+                'hh',
+                fcntl.ioctl(fd, termios.TIOCGWINSZ, '1234')
+            )
+        except:
+            return None
+        if cr == (0, 0):
+            return None
+        return cr
+    cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
+    if not cr:
+        try:
+            fd = os.open(os.ctermid(), os.O_RDONLY)
+            cr = ioctl_GWINSZ(fd)
+            os.close(fd)
+        except:
+            pass
+    if not cr:
+        cr = (os.environ.get('LINES', 25), os.environ.get('COLUMNS', 80))
+    return int(cr[1]), int(cr[0])
+
+
+def current_umask():
+    """Get the current umask which involves having to set it temporarily."""
+    mask = os.umask(0)
+    os.umask(mask)
+    return mask
+
+
+def unzip_file(filename, location, flatten=True):
+    """
+    Unzip the file (with path `filename`) to the destination `location`.  All
+    files are written based on system defaults and umask (i.e. permissions are
+    not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written. Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    zipfp = open(filename, 'rb')
+    try:
+        zip = zipfile.ZipFile(zipfp, allowZip64=True)
+        leading = has_leading_dir(zip.namelist()) and flatten
+        for info in zip.infolist():
+            name = info.filename
+            data = zip.read(name)
+            fn = name
+            if leading:
+                fn = split_leading_dir(name)[1]
+            fn = os.path.join(location, fn)
+            dir = os.path.dirname(fn)
+            if fn.endswith('/') or fn.endswith('\\'):
+                # A directory
+                ensure_dir(fn)
+            else:
+                ensure_dir(dir)
+                fp = open(fn, 'wb')
+                try:
+                    fp.write(data)
+                finally:
+                    fp.close()
+                    mode = info.external_attr >> 16
+                    # if mode and regular file and any execute permissions for
+                    # user/group/world?
+                    if mode and stat.S_ISREG(mode) and mode & 0o111:
+                        # make dest file have execute for user/group/world
+                        # (chmod +x) no-op on windows per python docs
+                        os.chmod(fn, (0o777 - current_umask() | 0o111))
+    finally:
+        zipfp.close()
+
+
+def untar_file(filename, location):
+    """
+    Untar the file (with path `filename`) to the destination `location`.
+    All files are written based on system defaults and umask (i.e. permissions
+    are not preserved), except that regular file members with any execute
+    permissions (user, group, or world) have "chmod +x" applied after being
+    written.  Note that for windows, any execute changes using os.chmod are
+    no-ops per the python docs.
+    """
+    ensure_dir(location)
+    if filename.lower().endswith('.gz') or filename.lower().endswith('.tgz'):
+        mode = 'r:gz'
+    elif filename.lower().endswith(BZ2_EXTENSIONS):
+        mode = 'r:bz2'
+    elif filename.lower().endswith(XZ_EXTENSIONS):
+        mode = 'r:xz'
+    elif filename.lower().endswith('.tar'):
+        mode = 'r'
+    else:
+        logger.warning(
+            'Cannot determine compression type for file %s', filename,
+        )
+        mode = 'r:*'
+    tar = tarfile.open(filename, mode)
+    try:
+        # note: python<=2.5 doesn't seem to know about pax headers, filter them
+        leading = has_leading_dir([
+            member.name for member in tar.getmembers()
+            if member.name != 'pax_global_header'
+        ])
+        for member in tar.getmembers():
+            fn = member.name
+            if fn == 'pax_global_header':
+                continue
+            if leading:
+                fn = split_leading_dir(fn)[1]
+            path = os.path.join(location, fn)
+            if member.isdir():
+                ensure_dir(path)
+            elif member.issym():
+                try:
+                    tar._extract_member(member, path)
+                except Exception as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        'In the tar file %s the member %s is invalid: %s',
+                        filename, member.name, exc,
+                    )
+                    continue
+            else:
+                try:
+                    fp = tar.extractfile(member)
+                except (KeyError, AttributeError) as exc:
+                    # Some corrupt tar files seem to produce this
+                    # (specifically bad symlinks)
+                    logger.warning(
+                        'In the tar file %s the member %s is invalid: %s',
+                        filename, member.name, exc,
+                    )
+                    continue
+                ensure_dir(os.path.dirname(path))
+                with open(path, 'wb') as destfp:
+                    shutil.copyfileobj(fp, destfp)
+                fp.close()
+                # Update the timestamp (useful for cython compiled files)
+                tar.utime(member, path)
+                # member have any execute permissions for user/group/world?
+                if member.mode & 0o111:
+                    # make dest file have execute for user/group/world
+                    # no-op on windows per python docs
+                    os.chmod(path, (0o777 - current_umask() | 0o111))
+    finally:
+        tar.close()
+
+
+def unpack_file(filename, location, content_type, link):
+    filename = os.path.realpath(filename)
+    if (content_type == 'application/zip' or
+            filename.lower().endswith(ZIP_EXTENSIONS) or
+            zipfile.is_zipfile(filename)):
+        unzip_file(
+            filename,
+            location,
+            flatten=not filename.endswith('.whl')
+        )
+    elif (content_type == 'application/x-gzip' or
+            tarfile.is_tarfile(filename) or
+            filename.lower().endswith(
+                TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
+        untar_file(filename, location)
+    elif (content_type and content_type.startswith('text/html') and
+            is_svn_page(file_contents(filename))):
+        # We don't really care about this
+        from pip.vcs.subversion import Subversion
+        Subversion('svn+' + link.url).unpack(location)
+    else:
+        # FIXME: handle?
+        # FIXME: magic signatures?
+        logger.critical(
+            'Cannot unpack file %s (downloaded from %s, content-type: %s); '
+            'cannot detect archive format',
+            filename, location, content_type,
+        )
+        raise InstallationError(
+            'Cannot determine archive format of %s' % location
+        )
+
+
+def call_subprocess(cmd, show_stdout=True, cwd=None,
+                    on_returncode='raise',
+                    command_desc=None,
+                    extra_environ=None, spinner=None):
+    # This function's handling of subprocess output is confusing and I
+    # previously broke it terribly, so as penance I will write a long comment
+    # explaining things.
+    #
+    # The obvious thing that affects output is the show_stdout=
+    # kwarg. show_stdout=True means, let the subprocess write directly to our
+    # stdout. Even though it is nominally the default, it is almost never used
+    # inside pip (and should not be used in new code without a very good
+    # reason); as of 2016-02-22 it is only used in a few places inside the VCS
+    # wrapper code. Ideally we should get rid of it entirely, because it
+    # creates a lot of complexity here for a rarely used feature.
+    #
+    # Most places in pip set show_stdout=False. What this means is:
+    # - We connect the child stdout to a pipe, which we read.
+    # - By default, we hide the output but show a spinner -- unless the
+    #   subprocess exits with an error, in which case we show the output.
+    # - If the --verbose option was passed (= loglevel is DEBUG), then we show
+    #   the output unconditionally. (But in this case we don't want to show
+    #   the output a second time if it turns out that there was an error.)
+    #
+    # stderr is always merged with stdout (even if show_stdout=True).
+    if show_stdout:
+        stdout = None
+    else:
+        stdout = subprocess.PIPE
+    if command_desc is None:
+        cmd_parts = []
+        for part in cmd:
+            if ' ' in part or '\n' in part or '"' in part or "'" in part:
+                part = '"%s"' % part.replace('"', '\\"')
+            cmd_parts.append(part)
+        command_desc = ' '.join(cmd_parts)
+    logger.debug("Running command %s", command_desc)
+    env = os.environ.copy()
+    if extra_environ:
+        env.update(extra_environ)
+    try:
+        proc = subprocess.Popen(
+            cmd, stderr=subprocess.STDOUT, stdin=None, stdout=stdout,
+            cwd=cwd, env=env)
+    except Exception as exc:
+        logger.critical(
+            "Error %s while executing command %s", exc, command_desc,
+        )
+        raise
+    if stdout is not None:
+        all_output = []
+        while True:
+            line = console_to_str(proc.stdout.readline())
+            if not line:
+                break
+            line = line.rstrip()
+            all_output.append(line + '\n')
+            if logger.getEffectiveLevel() <= std_logging.DEBUG:
+                # Show the line immediately
+                logger.debug(line)
+            else:
+                # Update the spinner
+                if spinner is not None:
+                    spinner.spin()
+    proc.wait()
+    if spinner is not None:
+        if proc.returncode:
+            spinner.finish("error")
+        else:
+            spinner.finish("done")
+    if proc.returncode:
+        if on_returncode == 'raise':
+            if (logger.getEffectiveLevel() > std_logging.DEBUG and
+                    not show_stdout):
+                logger.info(
+                    'Complete output from command %s:', command_desc,
+                )
+                logger.info(
+                    ''.join(all_output) +
+                    '\n----------------------------------------'
+                )
+            raise InstallationError(
+                'Command "%s" failed with error code %s in %s'
+                % (command_desc, proc.returncode, cwd))
+        elif on_returncode == 'warn':
+            logger.warning(
+                'Command "%s" had error code %s in %s',
+                command_desc, proc.returncode, cwd,
+            )
+        elif on_returncode == 'ignore':
+            pass
+        else:
+            raise ValueError('Invalid value: on_returncode=%s' %
+                             repr(on_returncode))
+    if not show_stdout:
+        return ''.join(all_output)
+
+
+def read_text_file(filename):
+    """Return the contents of *filename*.
+
+    Try to decode the file contents with utf-8, the preferred system encoding
+    (e.g., cp1252 on some Windows machines), and latin1, in that order.
+    Decoding a byte string with latin1 will never raise an error. In the worst
+    case, the returned string will contain some garbage characters.
+
+    """
+    with open(filename, 'rb') as fp:
+        data = fp.read()
+
+    encodings = ['utf-8', locale.getpreferredencoding(False), 'latin1']
+    for enc in encodings:
+        try:
+            data = data.decode(enc)
+        except UnicodeDecodeError:
+            continue
+        break
+
+    assert type(data) != bytes  # Latin1 should have worked.
+    return data
+
+
+def _make_build_dir(build_dir):
+    os.makedirs(build_dir)
+    write_delete_marker_file(build_dir)
+
+
+class FakeFile(object):
+    """Wrap a list of lines in an object with readline() to make
+    ConfigParser happy."""
+    def __init__(self, lines):
+        self._gen = (l for l in lines)
+
+    def readline(self):
+        try:
+            try:
+                return next(self._gen)
+            except NameError:
+                return self._gen.next()
+        except StopIteration:
+            return ''
+
+    def __iter__(self):
+        return self._gen
+
+
+class StreamWrapper(StringIO):
+
+    @classmethod
+    def from_stream(cls, orig_stream):
+        cls.orig_stream = orig_stream
+        return cls()
+
+    # compileall.compile_dir() needs stdout.encoding to print to stdout
+    @property
+    def encoding(self):
+        return self.orig_stream.encoding
+
+
+@contextlib.contextmanager
+def captured_output(stream_name):
+    """Return a context manager used by captured_stdout/stdin/stderr
+    that temporarily replaces the sys stream *stream_name* with a StringIO.
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    orig_stdout = getattr(sys, stream_name)
+    setattr(sys, stream_name, StreamWrapper.from_stream(orig_stdout))
+    try:
+        yield getattr(sys, stream_name)
+    finally:
+        setattr(sys, stream_name, orig_stdout)
+
+
+def captured_stdout():
+    """Capture the output of sys.stdout:
+
+       with captured_stdout() as stdout:
+           print('hello')
+       self.assertEqual(stdout.getvalue(), 'hello\n')
+
+    Taken from Lib/support/__init__.py in the CPython repo.
+    """
+    return captured_output('stdout')
+
+
+class cached_property(object):
+    """A property that is only computed once per instance and then replaces
+       itself with an ordinary attribute. Deleting the attribute resets the
+       property.
+
+       Source: https://github.com/bottlepy/bottle/blob/0.11.5/bottle.py#L175
+    """
+
+    def __init__(self, func):
+        self.__doc__ = getattr(func, '__doc__')
+        self.func = func
+
+    def __get__(self, obj, cls):
+        if obj is None:
+            # We're being accessed from the class itself, not from an object
+            return self
+        value = obj.__dict__[self.func.__name__] = self.func(obj)
+        return value
+
+
+def get_installed_version(dist_name, lookup_dirs=None):
+    """Get the installed version of dist_name avoiding pkg_resources cache"""
+    # Create a requirement that we'll look for inside of setuptools.
+    req = pkg_resources.Requirement.parse(dist_name)
+
+    # We want to avoid having this cached, so we need to construct a new
+    # working set each time.
+    if lookup_dirs is None:
+        working_set = pkg_resources.WorkingSet()
+    else:
+        working_set = pkg_resources.WorkingSet(lookup_dirs)
+
+    # Get the installed distribution from our working set
+    dist = working_set.find(req)
+
+    # Check to see if we got an installed distribution or not, if we did
+    # we want to return it's version.
+    return dist.version if dist else None
+
+
+def consume(iterator):
+    """Consume an iterable at C speed."""
+    deque(iterator, maxlen=0)
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+++ b/venv1/lib/python3.5/site-packages/pip/utils/appdirs.py
@@ -0,0 +1,248 @@
+"""
+This code was taken from https://github.com/ActiveState/appdirs and modified
+to suit our purposes.
+"""
+from __future__ import absolute_import
+
+import os
+import sys
+
+from pip.compat import WINDOWS, expanduser
+from pip._vendor.six import PY2, text_type
+
+
+def user_cache_dir(appname):
+    r"""
+    Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+
+    Typical user cache directories are:
+        macOS:      ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Windows:    C:\Users\<username>\AppData\Local\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go
+    in the `CSIDL_LOCAL_APPDATA` directory. This is identical to the
+    non-roaming app data dir (the default returned by `user_data_dir`). Apps
+    typically put cache data somewhere *under* the given dir here. Some
+    examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    """
+    if WINDOWS:
+        # Get the base path
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+
+        # When using Python 2, return paths as bytes on Windows like we do on
+        # other operating systems. See helper function docs for more details.
+        if PY2 and isinstance(path, text_type):
+            path = _win_path_to_bytes(path)
+
+        # Add our app name and Cache directory to it
+        path = os.path.join(path, appname, "Cache")
+    elif sys.platform == "darwin":
+        # Get the base path
+        path = expanduser("~/Library/Caches")
+
+        # Add our app name to it
+        path = os.path.join(path, appname)
+    else:
+        # Get the base path
+        path = os.getenv("XDG_CACHE_HOME", expanduser("~/.cache"))
+
+        # Add our app name to it
+        path = os.path.join(path, appname)
+
+    return path
+
+
+def user_data_dir(appname, roaming=False):
+    """
+    Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in
+                                $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\ ...
+                                ...Application Data\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local ...
+                                ...Settings\Application Data\<AppName>
+        Win 7  (not roaming):   C:\\Users\<username>\AppData\Local\<AppName>
+        Win 7  (roaming):       C:\\Users\<username>\AppData\Roaming\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if WINDOWS:
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.join(os.path.normpath(_get_win_folder(const)), appname)
+    elif sys.platform == "darwin":
+        path = os.path.join(
+            expanduser('~/Library/Application Support/'),
+            appname,
+        )
+    else:
+        path = os.path.join(
+            os.getenv('XDG_DATA_HOME', expanduser("~/.local/share")),
+            appname,
+        )
+
+    return path
+
+
+def user_config_dir(appname, roaming=True):
+    """Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "roaming" (boolean, default True) can be set False to not use the
+            Windows roaming appdata directory. That means that for users on a
+            Windows network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        macOS:                  same as user_data_dir
+        Unix:                   ~/.config/<AppName>
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by default "~/.config/<AppName>".
+    """
+    if WINDOWS:
+        path = user_data_dir(appname, roaming=roaming)
+    elif sys.platform == "darwin":
+        path = user_data_dir(appname)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', expanduser("~/.config"))
+        path = os.path.join(path, appname)
+
+    return path
+
+
+# for the discussion regarding site_config_dirs locations
+# see <https://github.com/pypa/pip/issues/1733>
+def site_config_dirs(appname):
+    """Return a list of potential user-shared config dirs for this application.
+
+        "appname" is the name of application.
+
+    Typical user config directories are:
+        macOS:      /Library/Application Support/<AppName>/
+        Unix:       /etc or $XDG_CONFIG_DIRS[i]/<AppName>/ for each value in
+                    $XDG_CONFIG_DIRS
+        Win XP:     C:\Documents and Settings\All Users\Application ...
+                    ...Data\<AppName>\
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory
+                    on Vista.)
+        Win 7:      Hidden, but writeable on Win 7:
+                    C:\ProgramData\<AppName>\
+    """
+    if WINDOWS:
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        pathlist = [os.path.join(path, appname)]
+    elif sys.platform == 'darwin':
+        pathlist = [os.path.join('/Library/Application Support', appname)]
+    else:
+        # try looking in $XDG_CONFIG_DIRS
+        xdg_config_dirs = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        if xdg_config_dirs:
+            pathlist = [
+                os.path.join(expanduser(x), appname)
+                for x in xdg_config_dirs.split(os.pathsep)
+            ]
+        else:
+            pathlist = []
+
+        # always look in /etc directly as well
+        pathlist.append('/etc')
+
+    return pathlist
+
+
+# -- Windows support functions --
+
+def _get_win_folder_from_registry(csidl_name):
+    """
+    This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    directory, _type = _winreg.QueryValueEx(key, shell_folder_name)
+    return directory
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+if WINDOWS:
+    try:
+        import ctypes
+        _get_win_folder = _get_win_folder_with_ctypes
+    except ImportError:
+        _get_win_folder = _get_win_folder_from_registry
+
+
+def _win_path_to_bytes(path):
+    """Encode Windows paths to bytes. Only used on Python 2.
+
+    Motivation is to be consistent with other operating systems where paths
+    are also returned as bytes. This avoids problems mixing bytes and Unicode
+    elsewhere in the codebase. For more details and discussion see
+    <https://github.com/pypa/pip/issues/3463>.
+
+    If encoding using ASCII and MBCS fails, return the original Unicode path.
+    """
+    for encoding in ('ASCII', 'MBCS'):
+        try:
+            return path.encode(encoding)
+        except (UnicodeEncodeError, LookupError):
+            pass
+    return path
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/build.py b/venv1/lib/python3.5/site-packages/pip/utils/build.py
new file mode 100644
index 0000000..fc65cfa
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/build.py
@@ -0,0 +1,42 @@
+from __future__ import absolute_import
+
+import os.path
+import tempfile
+
+from pip.utils import rmtree
+
+
+class BuildDirectory(object):
+
+    def __init__(self, name=None, delete=None):
+        # If we were not given an explicit directory, and we were not given an
+        # explicit delete option, then we'll default to deleting.
+        if name is None and delete is None:
+            delete = True
+
+        if name is None:
+            # We realpath here because some systems have their default tmpdir
+            # symlinked to another directory.  This tends to confuse build
+            # scripts, so we canonicalize the path by traversing potential
+            # symlinks here.
+            name = os.path.realpath(tempfile.mkdtemp(prefix="pip-build-"))
+            # If we were not given an explicit directory, and we were not given
+            # an explicit delete option, then we'll default to deleting.
+            if delete is None:
+                delete = True
+
+        self.name = name
+        self.delete = delete
+
+    def __repr__(self):
+        return "<{} {!r}>".format(self.__class__.__name__, self.name)
+
+    def __enter__(self):
+        return self.name
+
+    def __exit__(self, exc, value, tb):
+        self.cleanup()
+
+    def cleanup(self):
+        if self.delete:
+            rmtree(self.name)
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/deprecation.py b/venv1/lib/python3.5/site-packages/pip/utils/deprecation.py
new file mode 100644
index 0000000..c3f799e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/deprecation.py
@@ -0,0 +1,76 @@
+"""
+A module that implements tooling to enable easy warnings about deprecations.
+"""
+from __future__ import absolute_import
+
+import logging
+import warnings
+
+
+class PipDeprecationWarning(Warning):
+    pass
+
+
+class Pending(object):
+    pass
+
+
+class RemovedInPip10Warning(PipDeprecationWarning):
+    pass
+
+
+class RemovedInPip11Warning(PipDeprecationWarning, Pending):
+    pass
+
+
+class Python26DeprecationWarning(PipDeprecationWarning):
+    pass
+
+
+# Warnings <-> Logging Integration
+
+
+_warnings_showwarning = None
+
+
+def _showwarning(message, category, filename, lineno, file=None, line=None):
+    if file is not None:
+        if _warnings_showwarning is not None:
+            _warnings_showwarning(
+                message, category, filename, lineno, file, line,
+            )
+    else:
+        if issubclass(category, PipDeprecationWarning):
+            # We use a specially named logger which will handle all of the
+            # deprecation messages for pip.
+            logger = logging.getLogger("pip.deprecations")
+
+            # This is purposely using the % formatter here instead of letting
+            # the logging module handle the interpolation. This is because we
+            # want it to appear as if someone typed this entire message out.
+            log_message = "DEPRECATION: %s" % message
+
+            # PipDeprecationWarnings that are Pending still have at least 2
+            # versions to go until they are removed so they can just be
+            # warnings.  Otherwise, they will be removed in the very next
+            # version of pip. We want these to be more obvious so we use the
+            # ERROR logging level.
+            if issubclass(category, Pending):
+                logger.warning(log_message)
+            else:
+                logger.error(log_message)
+        else:
+            _warnings_showwarning(
+                message, category, filename, lineno, file, line,
+            )
+
+
+def install_warning_logger():
+    # Enable our Deprecation Warnings
+    warnings.simplefilter("default", PipDeprecationWarning, append=True)
+
+    global _warnings_showwarning
+
+    if _warnings_showwarning is None:
+        _warnings_showwarning = warnings.showwarning
+        warnings.showwarning = _showwarning
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/encoding.py b/venv1/lib/python3.5/site-packages/pip/utils/encoding.py
new file mode 100644
index 0000000..2483168
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/encoding.py
@@ -0,0 +1,31 @@
+import codecs
+import locale
+import re
+
+
+BOMS = [
+    (codecs.BOM_UTF8, 'utf8'),
+    (codecs.BOM_UTF16, 'utf16'),
+    (codecs.BOM_UTF16_BE, 'utf16-be'),
+    (codecs.BOM_UTF16_LE, 'utf16-le'),
+    (codecs.BOM_UTF32, 'utf32'),
+    (codecs.BOM_UTF32_BE, 'utf32-be'),
+    (codecs.BOM_UTF32_LE, 'utf32-le'),
+]
+
+ENCODING_RE = re.compile(b'coding[:=]\s*([-\w.]+)')
+
+
+def auto_decode(data):
+    """Check a bytes string for a BOM to correctly detect the encoding
+
+    Fallback to locale.getpreferredencoding(False) like open() on Python3"""
+    for bom, encoding in BOMS:
+        if data.startswith(bom):
+            return data[len(bom):].decode(encoding)
+    # Lets check the first two lines as in PEP263
+    for line in data.split(b'\n')[:2]:
+        if line[0:1] == b'#' and ENCODING_RE.search(line):
+            encoding = ENCODING_RE.search(line).groups()[0].decode('ascii')
+            return data.decode(encoding)
+    return data.decode(locale.getpreferredencoding(False))
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/filesystem.py b/venv1/lib/python3.5/site-packages/pip/utils/filesystem.py
new file mode 100644
index 0000000..25ad516
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/filesystem.py
@@ -0,0 +1,28 @@
+import os
+import os.path
+
+from pip.compat import get_path_uid
+
+
+def check_path_owner(path):
+    # If we don't have a way to check the effective uid of this process, then
+    # we'll just assume that we own the directory.
+    if not hasattr(os, "geteuid"):
+        return True
+
+    previous = None
+    while path != previous:
+        if os.path.lexists(path):
+            # Check if path is writable by current user.
+            if os.geteuid() == 0:
+                # Special handling for root user in order to handle properly
+                # cases where users use sudo without -H flag.
+                try:
+                    path_uid = get_path_uid(path)
+                except OSError:
+                    return False
+                return path_uid == 0
+            else:
+                return os.access(path, os.W_OK)
+        else:
+            previous, path = path, os.path.dirname(path)
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/glibc.py b/venv1/lib/python3.5/site-packages/pip/utils/glibc.py
new file mode 100644
index 0000000..7847885
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/glibc.py
@@ -0,0 +1,81 @@
+from __future__ import absolute_import
+
+import re
+import ctypes
+import platform
+import warnings
+
+
+def glibc_version_string():
+    "Returns glibc version string, or None if not using glibc."
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    process_namespace = ctypes.CDLL(None)
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+# Separated out from have_compatible_glibc for easier unit testing
+def check_glibc_version(version_str, required_major, minimum_minor):
+    # Parse string and check against requested version.
+    #
+    # We use a regexp instead of str.split because we want to discard any
+    # random junk that might come after the minor version -- this might happen
+    # in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    # uses version strings like "2.20-2014.11"). See gh-3588.
+    m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
+    if not m:
+        warnings.warn("Expected glibc version with 2 components major.minor,"
+                      " got: %s" % version_str, RuntimeWarning)
+        return False
+    return (int(m.group("major")) == required_major and
+            int(m.group("minor")) >= minimum_minor)
+
+
+def have_compatible_glibc(required_major, minimum_minor):
+    version_str = glibc_version_string()
+    if version_str is None:
+        return False
+    return check_glibc_version(version_str, required_major, minimum_minor)
+
+
+# platform.libc_ver regularly returns completely nonsensical glibc
+# versions. E.g. on my computer, platform says:
+#
+#   ~$ python2.7 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.7')
+#   ~$ python3.5 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.9')
+#
+# But the truth is:
+#
+#   ~$ ldd --version
+#   ldd (Debian GLIBC 2.22-11) 2.22
+#
+# This is unfortunate, because it means that the linehaul data on libc
+# versions that was generated by pip 8.1.2 and earlier is useless and
+# misleading. Solution: instead of using platform, use our code that actually
+# works.
+def libc_ver():
+    glibc_version = glibc_version_string()
+    if glibc_version is None:
+        # For non-glibc platforms, fall back on platform.libc_ver
+        return platform.libc_ver()
+    else:
+        return ("glibc", glibc_version)
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/hashes.py b/venv1/lib/python3.5/site-packages/pip/utils/hashes.py
new file mode 100644
index 0000000..9602970
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/hashes.py
@@ -0,0 +1,92 @@
+from __future__ import absolute_import
+
+import hashlib
+
+from pip.exceptions import HashMismatch, HashMissing, InstallationError
+from pip.utils import read_chunks
+from pip._vendor.six import iteritems, iterkeys, itervalues
+
+
+# The recommended hash algo of the moment. Change this whenever the state of
+# the art changes; it won't hurt backward compatibility.
+FAVORITE_HASH = 'sha256'
+
+
+# Names of hashlib algorithms allowed by the --hash option and ``pip hash``
+# Currently, those are the ones at least as collision-resistant as sha256.
+STRONG_HASHES = ['sha256', 'sha384', 'sha512']
+
+
+class Hashes(object):
+    """A wrapper that builds multiple hashes at once and checks them against
+    known-good values
+
+    """
+    def __init__(self, hashes=None):
+        """
+        :param hashes: A dict of algorithm names pointing to lists of allowed
+            hex digests
+        """
+        self._allowed = {} if hashes is None else hashes
+
+    def check_against_chunks(self, chunks):
+        """Check good hashes against ones built from iterable of chunks of
+        data.
+
+        Raise HashMismatch if none match.
+
+        """
+        gots = {}
+        for hash_name in iterkeys(self._allowed):
+            try:
+                gots[hash_name] = hashlib.new(hash_name)
+            except (ValueError, TypeError):
+                raise InstallationError('Unknown hash name: %s' % hash_name)
+
+        for chunk in chunks:
+            for hash in itervalues(gots):
+                hash.update(chunk)
+
+        for hash_name, got in iteritems(gots):
+            if got.hexdigest() in self._allowed[hash_name]:
+                return
+        self._raise(gots)
+
+    def _raise(self, gots):
+        raise HashMismatch(self._allowed, gots)
+
+    def check_against_file(self, file):
+        """Check good hashes against a file-like object
+
+        Raise HashMismatch if none match.
+
+        """
+        return self.check_against_chunks(read_chunks(file))
+
+    def check_against_path(self, path):
+        with open(path, 'rb') as file:
+            return self.check_against_file(file)
+
+    def __nonzero__(self):
+        """Return whether I know any known-good hashes."""
+        return bool(self._allowed)
+
+    def __bool__(self):
+        return self.__nonzero__()
+
+
+class MissingHashes(Hashes):
+    """A workalike for Hashes used when we're missing a hash for a requirement
+
+    It computes the actual hash of the requirement and raises a HashMissing
+    exception showing it to the user.
+
+    """
+    def __init__(self):
+        """Don't offer the ``hashes`` kwarg."""
+        # Pass our favorite hash in to generate a "gotten hash". With the
+        # empty list, it will never match, so an error will always raise.
+        super(MissingHashes, self).__init__(hashes={FAVORITE_HASH: []})
+
+    def _raise(self, gots):
+        raise HashMissing(gots[FAVORITE_HASH].hexdigest())
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/logging.py b/venv1/lib/python3.5/site-packages/pip/utils/logging.py
new file mode 100644
index 0000000..1c1053a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/logging.py
@@ -0,0 +1,130 @@
+from __future__ import absolute_import
+
+import contextlib
+import logging
+import logging.handlers
+import os
+
+try:
+    import threading
+except ImportError:
+    import dummy_threading as threading
+
+from pip.compat import WINDOWS
+from pip.utils import ensure_dir
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+
+_log_state = threading.local()
+_log_state.indentation = 0
+
+
+@contextlib.contextmanager
+def indent_log(num=2):
+    """
+    A context manager which will cause the log output to be indented for any
+    log messages emitted inside it.
+    """
+    _log_state.indentation += num
+    try:
+        yield
+    finally:
+        _log_state.indentation -= num
+
+
+def get_indentation():
+    return getattr(_log_state, 'indentation', 0)
+
+
+class IndentingFormatter(logging.Formatter):
+
+    def format(self, record):
+        """
+        Calls the standard formatter, but will indent all of the log messages
+        by our current indentation level.
+        """
+        formatted = logging.Formatter.format(self, record)
+        formatted = "".join([
+            (" " * get_indentation()) + line
+            for line in formatted.splitlines(True)
+        ])
+        return formatted
+
+
+def _color_wrap(*colors):
+    def wrapped(inp):
+        return "".join(list(colors) + [inp, colorama.Style.RESET_ALL])
+    return wrapped
+
+
+class ColorizedStreamHandler(logging.StreamHandler):
+
+    # Don't build up a list of colors if we don't have colorama
+    if colorama:
+        COLORS = [
+            # This needs to be in order from highest logging level to lowest.
+            (logging.ERROR, _color_wrap(colorama.Fore.RED)),
+            (logging.WARNING, _color_wrap(colorama.Fore.YELLOW)),
+        ]
+    else:
+        COLORS = []
+
+    def __init__(self, stream=None):
+        logging.StreamHandler.__init__(self, stream)
+
+        if WINDOWS and colorama:
+            self.stream = colorama.AnsiToWin32(self.stream)
+
+    def should_color(self):
+        # Don't colorize things if we do not have colorama
+        if not colorama:
+            return False
+
+        real_stream = (
+            self.stream if not isinstance(self.stream, colorama.AnsiToWin32)
+            else self.stream.wrapped
+        )
+
+        # If the stream is a tty we should color it
+        if hasattr(real_stream, "isatty") and real_stream.isatty():
+            return True
+
+        # If we have an ASNI term we should color it
+        if os.environ.get("TERM") == "ANSI":
+            return True
+
+        # If anything else we should not color it
+        return False
+
+    def format(self, record):
+        msg = logging.StreamHandler.format(self, record)
+
+        if self.should_color():
+            for level, color in self.COLORS:
+                if record.levelno >= level:
+                    msg = color(msg)
+                    break
+
+        return msg
+
+
+class BetterRotatingFileHandler(logging.handlers.RotatingFileHandler):
+
+    def _open(self):
+        ensure_dir(os.path.dirname(self.baseFilename))
+        return logging.handlers.RotatingFileHandler._open(self)
+
+
+class MaxLevelFilter(logging.Filter):
+
+    def __init__(self, level):
+        self.level = level
+
+    def filter(self, record):
+        return record.levelno < self.level
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/outdated.py b/venv1/lib/python3.5/site-packages/pip/utils/outdated.py
new file mode 100644
index 0000000..2164cc3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/outdated.py
@@ -0,0 +1,162 @@
+from __future__ import absolute_import
+
+import datetime
+import json
+import logging
+import os.path
+import sys
+
+from pip._vendor import lockfile
+from pip._vendor.packaging import version as packaging_version
+
+from pip.compat import total_seconds, WINDOWS
+from pip.models import PyPI
+from pip.locations import USER_CACHE_DIR, running_under_virtualenv
+from pip.utils import ensure_dir, get_installed_version
+from pip.utils.filesystem import check_path_owner
+
+
+SELFCHECK_DATE_FMT = "%Y-%m-%dT%H:%M:%SZ"
+
+
+logger = logging.getLogger(__name__)
+
+
+class VirtualenvSelfCheckState(object):
+    def __init__(self):
+        self.statefile_path = os.path.join(sys.prefix, "pip-selfcheck.json")
+
+        # Load the existing state
+        try:
+            with open(self.statefile_path) as statefile:
+                self.state = json.load(statefile)
+        except (IOError, ValueError):
+            self.state = {}
+
+    def save(self, pypi_version, current_time):
+        # Attempt to write out our version check file
+        with open(self.statefile_path, "w") as statefile:
+            json.dump(
+                {
+                    "last_check": current_time.strftime(SELFCHECK_DATE_FMT),
+                    "pypi_version": pypi_version,
+                },
+                statefile,
+                sort_keys=True,
+                separators=(",", ":")
+            )
+
+
+class GlobalSelfCheckState(object):
+    def __init__(self):
+        self.statefile_path = os.path.join(USER_CACHE_DIR, "selfcheck.json")
+
+        # Load the existing state
+        try:
+            with open(self.statefile_path) as statefile:
+                self.state = json.load(statefile)[sys.prefix]
+        except (IOError, ValueError, KeyError):
+            self.state = {}
+
+    def save(self, pypi_version, current_time):
+        # Check to make sure that we own the directory
+        if not check_path_owner(os.path.dirname(self.statefile_path)):
+            return
+
+        # Now that we've ensured the directory is owned by this user, we'll go
+        # ahead and make sure that all our directories are created.
+        ensure_dir(os.path.dirname(self.statefile_path))
+
+        # Attempt to write out our version check file
+        with lockfile.LockFile(self.statefile_path):
+            if os.path.exists(self.statefile_path):
+                with open(self.statefile_path) as statefile:
+                    state = json.load(statefile)
+            else:
+                state = {}
+
+            state[sys.prefix] = {
+                "last_check": current_time.strftime(SELFCHECK_DATE_FMT),
+                "pypi_version": pypi_version,
+            }
+
+            with open(self.statefile_path, "w") as statefile:
+                json.dump(state, statefile, sort_keys=True,
+                          separators=(",", ":"))
+
+
+def load_selfcheck_statefile():
+    if running_under_virtualenv():
+        return VirtualenvSelfCheckState()
+    else:
+        return GlobalSelfCheckState()
+
+
+def pip_version_check(session):
+    """Check for an update for pip.
+
+    Limit the frequency of checks to once per week. State is stored either in
+    the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix
+    of the pip script path.
+    """
+    installed_version = get_installed_version("pip")
+    if installed_version is None:
+        return
+
+    pip_version = packaging_version.parse(installed_version)
+    pypi_version = None
+
+    try:
+        state = load_selfcheck_statefile()
+
+        current_time = datetime.datetime.utcnow()
+        # Determine if we need to refresh the state
+        if "last_check" in state.state and "pypi_version" in state.state:
+            last_check = datetime.datetime.strptime(
+                state.state["last_check"],
+                SELFCHECK_DATE_FMT
+            )
+            if total_seconds(current_time - last_check) < 7 * 24 * 60 * 60:
+                pypi_version = state.state["pypi_version"]
+
+        # Refresh the version if we need to or just see if we need to warn
+        if pypi_version is None:
+            resp = session.get(
+                PyPI.pip_json_url,
+                headers={"Accept": "application/json"},
+            )
+            resp.raise_for_status()
+            pypi_version = [
+                v for v in sorted(
+                    list(resp.json()["releases"]),
+                    key=packaging_version.parse,
+                )
+                if not packaging_version.parse(v).is_prerelease
+            ][-1]
+
+            # save that we've performed a check
+            state.save(pypi_version, current_time)
+
+        remote_version = packaging_version.parse(pypi_version)
+
+        # Determine if our pypi_version is older
+        if (pip_version < remote_version and
+                pip_version.base_version != remote_version.base_version):
+            # Advise "python -m pip" on Windows to avoid issues
+            # with overwriting pip.exe.
+            if WINDOWS:
+                pip_cmd = "python -m pip"
+            else:
+                pip_cmd = "pip"
+            logger.warning(
+                "You are using pip version %s, however version %s is "
+                "available.\nYou should consider upgrading via the "
+                "'%s install --upgrade pip' command.",
+                pip_version, pypi_version, pip_cmd
+            )
+
+    except Exception:
+        logger.debug(
+            "There was an error checking the latest version of pip",
+            exc_info=True,
+        )
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/packaging.py b/venv1/lib/python3.5/site-packages/pip/utils/packaging.py
new file mode 100644
index 0000000..e93b20d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/packaging.py
@@ -0,0 +1,63 @@
+from __future__ import absolute_import
+
+from email.parser import FeedParser
+
+import logging
+import sys
+
+from pip._vendor.packaging import specifiers
+from pip._vendor.packaging import version
+from pip._vendor import pkg_resources
+
+from pip import exceptions
+
+logger = logging.getLogger(__name__)
+
+
+def check_requires_python(requires_python):
+    """
+    Check if the python version in use match the `requires_python` specifier.
+
+    Returns `True` if the version of python in use matches the requirement.
+    Returns `False` if the version of python in use does not matches the
+    requirement.
+
+    Raises an InvalidSpecifier if `requires_python` have an invalid format.
+    """
+    if requires_python is None:
+        # The package provides no information
+        return True
+    requires_python_specifier = specifiers.SpecifierSet(requires_python)
+
+    # We only use major.minor.micro
+    python_version = version.parse('.'.join(map(str, sys.version_info[:3])))
+    return python_version in requires_python_specifier
+
+
+def get_metadata(dist):
+    if (isinstance(dist, pkg_resources.DistInfoDistribution) and
+            dist.has_metadata('METADATA')):
+        return dist.get_metadata('METADATA')
+    elif dist.has_metadata('PKG-INFO'):
+        return dist.get_metadata('PKG-INFO')
+
+
+def check_dist_requires_python(dist):
+    metadata = get_metadata(dist)
+    feed_parser = FeedParser()
+    feed_parser.feed(metadata)
+    pkg_info_dict = feed_parser.close()
+    requires_python = pkg_info_dict.get('Requires-Python')
+    try:
+        if not check_requires_python(requires_python):
+            raise exceptions.UnsupportedPythonVersion(
+                "%s requires Python '%s' but the running Python is %s" % (
+                    dist.project_name,
+                    requires_python,
+                    '.'.join(map(str, sys.version_info[:3])),)
+            )
+    except specifiers.InvalidSpecifier as e:
+        logger.warning(
+            "Package %s has an invalid Requires-Python entry %s - %s" % (
+                dist.project_name, requires_python, e))
+        return
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/setuptools_build.py b/venv1/lib/python3.5/site-packages/pip/utils/setuptools_build.py
new file mode 100644
index 0000000..03973e9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/setuptools_build.py
@@ -0,0 +1,8 @@
+# Shim to wrap setup.py invocation with setuptools
+SETUPTOOLS_SHIM = (
+    "import setuptools, tokenize;__file__=%r;"
+    "f=getattr(tokenize, 'open', open)(__file__);"
+    "code=f.read().replace('\\r\\n', '\\n');"
+    "f.close();"
+    "exec(compile(code, __file__, 'exec'))"
+)
diff --git a/venv1/lib/python3.5/site-packages/pip/utils/ui.py b/venv1/lib/python3.5/site-packages/pip/utils/ui.py
new file mode 100644
index 0000000..bba73e3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/utils/ui.py
@@ -0,0 +1,344 @@
+from __future__ import absolute_import
+from __future__ import division
+
+import itertools
+import sys
+from signal import signal, SIGINT, default_int_handler
+import time
+import contextlib
+import logging
+
+from pip.compat import WINDOWS
+from pip.utils import format_size
+from pip.utils.logging import get_indentation
+from pip._vendor import six
+from pip._vendor.progress.bar import Bar, IncrementalBar
+from pip._vendor.progress.helpers import (WritelnMixin,
+                                          HIDE_CURSOR, SHOW_CURSOR)
+from pip._vendor.progress.spinner import Spinner
+
+try:
+    from pip._vendor import colorama
+# Lots of different errors can come from this, including SystemError and
+# ImportError.
+except Exception:
+    colorama = None
+
+logger = logging.getLogger(__name__)
+
+
+def _select_progress_class(preferred, fallback):
+    encoding = getattr(preferred.file, "encoding", None)
+
+    # If we don't know what encoding this file is in, then we'll just assume
+    # that it doesn't support unicode and use the ASCII bar.
+    if not encoding:
+        return fallback
+
+    # Collect all of the possible characters we want to use with the preferred
+    # bar.
+    characters = [
+        getattr(preferred, "empty_fill", six.text_type()),
+        getattr(preferred, "fill", six.text_type()),
+    ]
+    characters += list(getattr(preferred, "phases", []))
+
+    # Try to decode the characters we're using for the bar using the encoding
+    # of the given file, if this works then we'll assume that we can use the
+    # fancier bar and if not we'll fall back to the plaintext bar.
+    try:
+        six.text_type().join(characters).encode(encoding)
+    except UnicodeEncodeError:
+        return fallback
+    else:
+        return preferred
+
+
+_BaseBar = _select_progress_class(IncrementalBar, Bar)
+
+
+class InterruptibleMixin(object):
+    """
+    Helper to ensure that self.finish() gets called on keyboard interrupt.
+
+    This allows downloads to be interrupted without leaving temporary state
+    (like hidden cursors) behind.
+
+    This class is similar to the progress library's existing SigIntMixin
+    helper, but as of version 1.2, that helper has the following problems:
+
+    1. It calls sys.exit().
+    2. It discards the existing SIGINT handler completely.
+    3. It leaves its own handler in place even after an uninterrupted finish,
+       which will have unexpected delayed effects if the user triggers an
+       unrelated keyboard interrupt some time after a progress-displaying
+       download has already completed, for example.
+    """
+
+    def __init__(self, *args, **kwargs):
+        """
+        Save the original SIGINT handler for later.
+        """
+        super(InterruptibleMixin, self).__init__(*args, **kwargs)
+
+        self.original_handler = signal(SIGINT, self.handle_sigint)
+
+        # If signal() returns None, the previous handler was not installed from
+        # Python, and we cannot restore it. This probably should not happen,
+        # but if it does, we must restore something sensible instead, at least.
+        # The least bad option should be Python's default SIGINT handler, which
+        # just raises KeyboardInterrupt.
+        if self.original_handler is None:
+            self.original_handler = default_int_handler
+
+    def finish(self):
+        """
+        Restore the original SIGINT handler after finishing.
+
+        This should happen regardless of whether the progress display finishes
+        normally, or gets interrupted.
+        """
+        super(InterruptibleMixin, self).finish()
+        signal(SIGINT, self.original_handler)
+
+    def handle_sigint(self, signum, frame):
+        """
+        Call self.finish() before delegating to the original SIGINT handler.
+
+        This handler should only be in place while the progress display is
+        active.
+        """
+        self.finish()
+        self.original_handler(signum, frame)
+
+
+class DownloadProgressMixin(object):
+
+    def __init__(self, *args, **kwargs):
+        super(DownloadProgressMixin, self).__init__(*args, **kwargs)
+        self.message = (" " * (get_indentation() + 2)) + self.message
+
+    @property
+    def downloaded(self):
+        return format_size(self.index)
+
+    @property
+    def download_speed(self):
+        # Avoid zero division errors...
+        if self.avg == 0.0:
+            return "..."
+        return format_size(1 / self.avg) + "/s"
+
+    @property
+    def pretty_eta(self):
+        if self.eta:
+            return "eta %s" % self.eta_td
+        return ""
+
+    def iter(self, it, n=1):
+        for x in it:
+            yield x
+            self.next(n)
+        self.finish()
+
+
+class WindowsMixin(object):
+
+    def __init__(self, *args, **kwargs):
+        # The Windows terminal does not support the hide/show cursor ANSI codes
+        # even with colorama. So we'll ensure that hide_cursor is False on
+        # Windows.
+        # This call neds to go before the super() call, so that hide_cursor
+        # is set in time. The base progress bar class writes the "hide cursor"
+        # code to the terminal in its init, so if we don't set this soon
+        # enough, we get a "hide" with no corresponding "show"...
+        if WINDOWS and self.hide_cursor:
+            self.hide_cursor = False
+
+        super(WindowsMixin, self).__init__(*args, **kwargs)
+
+        # Check if we are running on Windows and we have the colorama module,
+        # if we do then wrap our file with it.
+        if WINDOWS and colorama:
+            self.file = colorama.AnsiToWin32(self.file)
+            # The progress code expects to be able to call self.file.isatty()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.isatty = lambda: self.file.wrapped.isatty()
+            # The progress code expects to be able to call self.file.flush()
+            # but the colorama.AnsiToWin32() object doesn't have that, so we'll
+            # add it.
+            self.file.flush = lambda: self.file.wrapped.flush()
+
+
+class DownloadProgressBar(WindowsMixin, InterruptibleMixin,
+                          DownloadProgressMixin, _BaseBar):
+
+    file = sys.stdout
+    message = "%(percent)d%%"
+    suffix = "%(downloaded)s %(download_speed)s %(pretty_eta)s"
+
+
+class DownloadProgressSpinner(WindowsMixin, InterruptibleMixin,
+                              DownloadProgressMixin, WritelnMixin, Spinner):
+
+    file = sys.stdout
+    suffix = "%(downloaded)s %(download_speed)s"
+
+    def next_phase(self):
+        if not hasattr(self, "_phaser"):
+            self._phaser = itertools.cycle(self.phases)
+        return next(self._phaser)
+
+    def update(self):
+        message = self.message % self
+        phase = self.next_phase()
+        suffix = self.suffix % self
+        line = ''.join([
+            message,
+            " " if message else "",
+            phase,
+            " " if suffix else "",
+            suffix,
+        ])
+
+        self.writeln(line)
+
+
+################################################################
+# Generic "something is happening" spinners
+#
+# We don't even try using progress.spinner.Spinner here because it's actually
+# simpler to reimplement from scratch than to coerce their code into doing
+# what we need.
+################################################################
+
+@contextlib.contextmanager
+def hidden_cursor(file):
+    # The Windows terminal does not support the hide/show cursor ANSI codes,
+    # even via colorama. So don't even try.
+    if WINDOWS:
+        yield
+    # We don't want to clutter the output with control characters if we're
+    # writing to a file, or if the user is running with --quiet.
+    # See https://github.com/pypa/pip/issues/3418
+    elif not file.isatty() or logger.getEffectiveLevel() > logging.INFO:
+        yield
+    else:
+        file.write(HIDE_CURSOR)
+        try:
+            yield
+        finally:
+            file.write(SHOW_CURSOR)
+
+
+class RateLimiter(object):
+    def __init__(self, min_update_interval_seconds):
+        self._min_update_interval_seconds = min_update_interval_seconds
+        self._last_update = 0
+
+    def ready(self):
+        now = time.time()
+        delta = now - self._last_update
+        return delta >= self._min_update_interval_seconds
+
+    def reset(self):
+        self._last_update = time.time()
+
+
+class InteractiveSpinner(object):
+    def __init__(self, message, file=None, spin_chars="-\\|/",
+                 # Empirically, 8 updates/second looks nice
+                 min_update_interval_seconds=0.125):
+        self._message = message
+        if file is None:
+            file = sys.stdout
+        self._file = file
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._finished = False
+
+        self._spin_cycle = itertools.cycle(spin_chars)
+
+        self._file.write(" " * get_indentation() + self._message + " ... ")
+        self._width = 0
+
+    def _write(self, status):
+        assert not self._finished
+        # Erase what we wrote before by backspacing to the beginning, writing
+        # spaces to overwrite the old text, and then backspacing again
+        backup = "\b" * self._width
+        self._file.write(backup + " " * self._width + backup)
+        # Now we have a blank slate to add our status
+        self._file.write(status)
+        self._width = len(status)
+        self._file.flush()
+        self._rate_limiter.reset()
+
+    def spin(self):
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._write(next(self._spin_cycle))
+
+    def finish(self, final_status):
+        if self._finished:
+            return
+        self._write(final_status)
+        self._file.write("\n")
+        self._file.flush()
+        self._finished = True
+
+
+# Used for dumb terminals, non-interactive installs (no tty), etc.
+# We still print updates occasionally (once every 60 seconds by default) to
+# act as a keep-alive for systems like Travis-CI that take lack-of-output as
+# an indication that a task has frozen.
+class NonInteractiveSpinner(object):
+    def __init__(self, message, min_update_interval_seconds=60):
+        self._message = message
+        self._finished = False
+        self._rate_limiter = RateLimiter(min_update_interval_seconds)
+        self._update("started")
+
+    def _update(self, status):
+        assert not self._finished
+        self._rate_limiter.reset()
+        logger.info("%s: %s", self._message, status)
+
+    def spin(self):
+        if self._finished:
+            return
+        if not self._rate_limiter.ready():
+            return
+        self._update("still running...")
+
+    def finish(self, final_status):
+        if self._finished:
+            return
+        self._update("finished with status '%s'" % (final_status,))
+        self._finished = True
+
+
+@contextlib.contextmanager
+def open_spinner(message):
+    # Interactive spinner goes directly to sys.stdout rather than being routed
+    # through the logging system, but it acts like it has level INFO,
+    # i.e. it's only displayed if we're at level INFO or better.
+    # Non-interactive spinner goes through the logging system, so it is always
+    # in sync with logging configuration.
+    if sys.stdout.isatty() and logger.getEffectiveLevel() <= logging.INFO:
+        spinner = InteractiveSpinner(message)
+    else:
+        spinner = NonInteractiveSpinner(message)
+    try:
+        with hidden_cursor(sys.stdout):
+            yield spinner
+    except KeyboardInterrupt:
+        spinner.finish("canceled")
+        raise
+    except Exception:
+        spinner.finish("error")
+        raise
+    else:
+        spinner.finish("done")
diff --git a/venv1/lib/python3.5/site-packages/pip/vcs/__init__.py b/venv1/lib/python3.5/site-packages/pip/vcs/__init__.py
new file mode 100644
index 0000000..8d3dbb2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/vcs/__init__.py
@@ -0,0 +1,366 @@
+"""Handles all VCS (version control) support"""
+from __future__ import absolute_import
+
+import errno
+import logging
+import os
+import shutil
+import sys
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+from pip.exceptions import BadCommand
+from pip.utils import (display_path, backup_dir, call_subprocess,
+                       rmtree, ask_path_exists)
+
+
+__all__ = ['vcs', 'get_src_requirement']
+
+
+logger = logging.getLogger(__name__)
+
+
+class VcsSupport(object):
+    _registry = {}
+    schemes = ['ssh', 'git', 'hg', 'bzr', 'sftp', 'svn']
+
+    def __init__(self):
+        # Register more schemes with urlparse for various version control
+        # systems
+        urllib_parse.uses_netloc.extend(self.schemes)
+        # Python >= 2.7.4, 3.3 doesn't have uses_fragment
+        if getattr(urllib_parse, 'uses_fragment', None):
+            urllib_parse.uses_fragment.extend(self.schemes)
+        super(VcsSupport, self).__init__()
+
+    def __iter__(self):
+        return self._registry.__iter__()
+
+    @property
+    def backends(self):
+        return list(self._registry.values())
+
+    @property
+    def dirnames(self):
+        return [backend.dirname for backend in self.backends]
+
+    @property
+    def all_schemes(self):
+        schemes = []
+        for backend in self.backends:
+            schemes.extend(backend.schemes)
+        return schemes
+
+    def register(self, cls):
+        if not hasattr(cls, 'name'):
+            logger.warning('Cannot register VCS %s', cls.__name__)
+            return
+        if cls.name not in self._registry:
+            self._registry[cls.name] = cls
+            logger.debug('Registered VCS backend: %s', cls.name)
+
+    def unregister(self, cls=None, name=None):
+        if name in self._registry:
+            del self._registry[name]
+        elif cls in self._registry.values():
+            del self._registry[cls.name]
+        else:
+            logger.warning('Cannot unregister because no class or name given')
+
+    def get_backend_name(self, location):
+        """
+        Return the name of the version control backend if found at given
+        location, e.g. vcs.get_backend_name('/path/to/vcs/checkout')
+        """
+        for vc_type in self._registry.values():
+            if vc_type.controls_location(location):
+                logger.debug('Determine that %s uses VCS: %s',
+                             location, vc_type.name)
+                return vc_type.name
+        return None
+
+    def get_backend(self, name):
+        name = name.lower()
+        if name in self._registry:
+            return self._registry[name]
+
+    def get_backend_from_location(self, location):
+        vc_type = self.get_backend_name(location)
+        if vc_type:
+            return self.get_backend(vc_type)
+        return None
+
+
+vcs = VcsSupport()
+
+
+class VersionControl(object):
+    name = ''
+    dirname = ''
+    # List of supported schemes for this Version Control
+    schemes = ()
+
+    def __init__(self, url=None, *args, **kwargs):
+        self.url = url
+        super(VersionControl, self).__init__(*args, **kwargs)
+
+    def _is_local_repository(self, repo):
+        """
+           posix absolute paths start with os.path.sep,
+           win32 ones start with drive (like c:\\folder)
+        """
+        drive, tail = os.path.splitdrive(repo)
+        return repo.startswith(os.path.sep) or drive
+
+    # See issue #1083 for why this method was introduced:
+    # https://github.com/pypa/pip/issues/1083
+    def translate_egg_surname(self, surname):
+        # For example, Django has branches of the form "stable/1.7.x".
+        return surname.replace('/', '_')
+
+    def export(self, location):
+        """
+        Export the repository at the url to the destination location
+        i.e. only download the files, without vcs informations
+        """
+        raise NotImplementedError
+
+    def get_url_rev(self):
+        """
+        Returns the correct repository URL and revision by parsing the given
+        repository URL
+        """
+        error_message = (
+            "Sorry, '%s' is a malformed VCS url. "
+            "The format is <vcs>+<protocol>://<url>, "
+            "e.g. svn+http://myrepo/svn/MyApp#egg=MyApp"
+        )
+        assert '+' in self.url, error_message % self.url
+        url = self.url.split('+', 1)[1]
+        scheme, netloc, path, query, frag = urllib_parse.urlsplit(url)
+        rev = None
+        if '@' in path:
+            path, rev = path.rsplit('@', 1)
+        url = urllib_parse.urlunsplit((scheme, netloc, path, query, ''))
+        return url, rev
+
+    def get_info(self, location):
+        """
+        Returns (url, revision), where both are strings
+        """
+        assert not location.rstrip('/').endswith(self.dirname), \
+            'Bad directory: %s' % location
+        return self.get_url(location), self.get_revision(location)
+
+    def normalize_url(self, url):
+        """
+        Normalize a URL for comparison by unquoting it and removing any
+        trailing slash.
+        """
+        return urllib_parse.unquote(url).rstrip('/')
+
+    def compare_urls(self, url1, url2):
+        """
+        Compare two repo URLs for identity, ignoring incidental differences.
+        """
+        return (self.normalize_url(url1) == self.normalize_url(url2))
+
+    def obtain(self, dest):
+        """
+        Called when installing or updating an editable package, takes the
+        source path of the checkout.
+        """
+        raise NotImplementedError
+
+    def switch(self, dest, url, rev_options):
+        """
+        Switch the repo at ``dest`` to point to ``URL``.
+        """
+        raise NotImplementedError
+
+    def update(self, dest, rev_options):
+        """
+        Update an already-existing repo to the given ``rev_options``.
+        """
+        raise NotImplementedError
+
+    def check_version(self, dest, rev_options):
+        """
+        Return True if the version is identical to what exists and
+        doesn't need to be updated.
+        """
+        raise NotImplementedError
+
+    def check_destination(self, dest, url, rev_options, rev_display):
+        """
+        Prepare a location to receive a checkout/clone.
+
+        Return True if the location is ready for (and requires) a
+        checkout/clone, False otherwise.
+        """
+        checkout = True
+        prompt = False
+        if os.path.exists(dest):
+            checkout = False
+            if os.path.exists(os.path.join(dest, self.dirname)):
+                existing_url = self.get_url(dest)
+                if self.compare_urls(existing_url, url):
+                    logger.debug(
+                        '%s in %s exists, and has correct URL (%s)',
+                        self.repo_name.title(),
+                        display_path(dest),
+                        url,
+                    )
+                    if not self.check_version(dest, rev_options):
+                        logger.info(
+                            'Updating %s %s%s',
+                            display_path(dest),
+                            self.repo_name,
+                            rev_display,
+                        )
+                        self.update(dest, rev_options)
+                    else:
+                        logger.info(
+                            'Skipping because already up-to-date.')
+                else:
+                    logger.warning(
+                        '%s %s in %s exists with URL %s',
+                        self.name,
+                        self.repo_name,
+                        display_path(dest),
+                        existing_url,
+                    )
+                    prompt = ('(s)witch, (i)gnore, (w)ipe, (b)ackup ',
+                              ('s', 'i', 'w', 'b'))
+            else:
+                logger.warning(
+                    'Directory %s already exists, and is not a %s %s.',
+                    dest,
+                    self.name,
+                    self.repo_name,
+                )
+                prompt = ('(i)gnore, (w)ipe, (b)ackup ', ('i', 'w', 'b'))
+        if prompt:
+            logger.warning(
+                'The plan is to install the %s repository %s',
+                self.name,
+                url,
+            )
+            response = ask_path_exists('What to do?  %s' % prompt[0],
+                                       prompt[1])
+
+            if response == 's':
+                logger.info(
+                    'Switching %s %s to %s%s',
+                    self.repo_name,
+                    display_path(dest),
+                    url,
+                    rev_display,
+                )
+                self.switch(dest, url, rev_options)
+            elif response == 'i':
+                # do nothing
+                pass
+            elif response == 'w':
+                logger.warning('Deleting %s', display_path(dest))
+                rmtree(dest)
+                checkout = True
+            elif response == 'b':
+                dest_dir = backup_dir(dest)
+                logger.warning(
+                    'Backing up %s to %s', display_path(dest), dest_dir,
+                )
+                shutil.move(dest, dest_dir)
+                checkout = True
+            elif response == 'a':
+                sys.exit(-1)
+        return checkout
+
+    def unpack(self, location):
+        """
+        Clean up current location and download the url repository
+        (and vcs infos) into location
+        """
+        if os.path.exists(location):
+            rmtree(location)
+        self.obtain(location)
+
+    def get_src_requirement(self, dist, location):
+        """
+        Return a string representing the requirement needed to
+        redownload the files currently present in location, something
+        like:
+          {repository_url}@{revision}#egg={project_name}-{version_identifier}
+        """
+        raise NotImplementedError
+
+    def get_url(self, location):
+        """
+        Return the url used at location
+        Used in get_info or check_destination
+        """
+        raise NotImplementedError
+
+    def get_revision(self, location):
+        """
+        Return the current revision of the files at location
+        Used in get_info
+        """
+        raise NotImplementedError
+
+    def run_command(self, cmd, show_stdout=True, cwd=None,
+                    on_returncode='raise',
+                    command_desc=None,
+                    extra_environ=None, spinner=None):
+        """
+        Run a VCS subcommand
+        This is simply a wrapper around call_subprocess that adds the VCS
+        command name, and checks that the VCS is available
+        """
+        cmd = [self.name] + cmd
+        try:
+            return call_subprocess(cmd, show_stdout, cwd,
+                                   on_returncode,
+                                   command_desc, extra_environ,
+                                   spinner)
+        except OSError as e:
+            # errno.ENOENT = no such file or directory
+            # In other words, the VCS executable isn't available
+            if e.errno == errno.ENOENT:
+                raise BadCommand('Cannot find command %r' % self.name)
+            else:
+                raise  # re-raise exception if a different error occurred
+
+    @classmethod
+    def controls_location(cls, location):
+        """
+        Check if a location is controlled by the vcs.
+        It is meant to be overridden to implement smarter detection
+        mechanisms for specific vcs.
+        """
+        logger.debug('Checking in %s for %s (%s)...',
+                     location, cls.dirname, cls.name)
+        path = os.path.join(location, cls.dirname)
+        return os.path.exists(path)
+
+
+def get_src_requirement(dist, location):
+    version_control = vcs.get_backend_from_location(location)
+    if version_control:
+        try:
+            return version_control().get_src_requirement(dist,
+                                                         location)
+        except BadCommand:
+            logger.warning(
+                'cannot determine version of editable source in %s '
+                '(%s command not found in path)',
+                location,
+                version_control.name,
+            )
+            return dist.as_requirement()
+    logger.warning(
+        'cannot determine version of editable source in %s (is not SVN '
+        'checkout, Git clone, Mercurial clone or Bazaar branch)',
+        location,
+    )
+    return dist.as_requirement()
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diff --git a/venv1/lib/python3.5/site-packages/pip/vcs/bazaar.py b/venv1/lib/python3.5/site-packages/pip/vcs/bazaar.py
new file mode 100644
index 0000000..0f09584
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/vcs/bazaar.py
@@ -0,0 +1,116 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+# TODO: Get this into six.moves.urllib.parse
+try:
+    from urllib import parse as urllib_parse
+except ImportError:
+    import urlparse as urllib_parse
+
+from pip.utils import rmtree, display_path
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url
+
+
+logger = logging.getLogger(__name__)
+
+
+class Bazaar(VersionControl):
+    name = 'bzr'
+    dirname = '.bzr'
+    repo_name = 'branch'
+    schemes = (
+        'bzr', 'bzr+http', 'bzr+https', 'bzr+ssh', 'bzr+sftp', 'bzr+ftp',
+        'bzr+lp',
+    )
+
+    def __init__(self, url=None, *args, **kwargs):
+        super(Bazaar, self).__init__(url, *args, **kwargs)
+        # Python >= 2.7.4, 3.3 doesn't have uses_fragment or non_hierarchical
+        # Register lp but do not expose as a scheme to support bzr+lp.
+        if getattr(urllib_parse, 'uses_fragment', None):
+            urllib_parse.uses_fragment.extend(['lp'])
+            urllib_parse.non_hierarchical.extend(['lp'])
+
+    def export(self, location):
+        """
+        Export the Bazaar repository at the url to the destination location
+        """
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        if os.path.exists(location):
+            # Remove the location to make sure Bazaar can export it correctly
+            rmtree(location)
+        try:
+            self.run_command(['export', location], cwd=temp_dir,
+                             show_stdout=False)
+        finally:
+            rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['switch', url], cwd=dest)
+
+    def update(self, dest, rev_options):
+        self.run_command(['pull', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = ['-r', rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Checking out %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['branch', '-q'] + rev_options + [url, dest])
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing bzr+ from bzr+ssh:// readd it
+        url, rev = super(Bazaar, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'bzr+' + url
+        return url, rev
+
+    def get_url(self, location):
+        urls = self.run_command(['info'], show_stdout=False, cwd=location)
+        for line in urls.splitlines():
+            line = line.strip()
+            for x in ('checkout of branch: ',
+                      'parent branch: '):
+                if line.startswith(x):
+                    repo = line.split(x)[1]
+                    if self._is_local_repository(repo):
+                        return path_to_url(repo)
+                    return repo
+        return None
+
+    def get_revision(self, location):
+        revision = self.run_command(
+            ['revno'], show_stdout=False, cwd=location)
+        return revision.splitlines()[-1]
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo:
+            return None
+        if not repo.lower().startswith('bzr:'):
+            repo = 'bzr+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        current_rev = self.get_revision(location)
+        return '%s@%s#egg=%s' % (repo, current_rev, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+
+vcs.register(Bazaar)
diff --git a/venv1/lib/python3.5/site-packages/pip/vcs/git.py b/venv1/lib/python3.5/site-packages/pip/vcs/git.py
new file mode 100644
index 0000000..2187dd8
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/vcs/git.py
@@ -0,0 +1,300 @@
+from __future__ import absolute_import
+
+import logging
+import tempfile
+import os.path
+
+from pip.compat import samefile
+from pip.exceptions import BadCommand
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+from pip._vendor.six.moves.urllib import request as urllib_request
+from pip._vendor.packaging.version import parse as parse_version
+
+from pip.utils import display_path, rmtree
+from pip.vcs import vcs, VersionControl
+
+
+urlsplit = urllib_parse.urlsplit
+urlunsplit = urllib_parse.urlunsplit
+
+
+logger = logging.getLogger(__name__)
+
+
+class Git(VersionControl):
+    name = 'git'
+    dirname = '.git'
+    repo_name = 'clone'
+    schemes = (
+        'git', 'git+http', 'git+https', 'git+ssh', 'git+git', 'git+file',
+    )
+
+    def __init__(self, url=None, *args, **kwargs):
+
+        # Works around an apparent Git bug
+        # (see http://article.gmane.org/gmane.comp.version-control.git/146500)
+        if url:
+            scheme, netloc, path, query, fragment = urlsplit(url)
+            if scheme.endswith('file'):
+                initial_slashes = path[:-len(path.lstrip('/'))]
+                newpath = (
+                    initial_slashes +
+                    urllib_request.url2pathname(path)
+                    .replace('\\', '/').lstrip('/')
+                )
+                url = urlunsplit((scheme, netloc, newpath, query, fragment))
+                after_plus = scheme.find('+') + 1
+                url = scheme[:after_plus] + urlunsplit(
+                    (scheme[after_plus:], netloc, newpath, query, fragment),
+                )
+
+        super(Git, self).__init__(url, *args, **kwargs)
+
+    def get_git_version(self):
+        VERSION_PFX = 'git version '
+        version = self.run_command(['version'], show_stdout=False)
+        if version.startswith(VERSION_PFX):
+            version = version[len(VERSION_PFX):]
+        else:
+            version = ''
+        # get first 3 positions of the git version becasue
+        # on windows it is x.y.z.windows.t, and this parses as
+        # LegacyVersion which always smaller than a Version.
+        version = '.'.join(version.split('.')[:3])
+        return parse_version(version)
+
+    def export(self, location):
+        """Export the Git repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            if not location.endswith('/'):
+                location = location + '/'
+            self.run_command(
+                ['checkout-index', '-a', '-f', '--prefix', location],
+                show_stdout=False, cwd=temp_dir)
+        finally:
+            rmtree(temp_dir)
+
+    def check_rev_options(self, rev, dest, rev_options):
+        """Check the revision options before checkout to compensate that tags
+        and branches may need origin/ as a prefix.
+        Returns the SHA1 of the branch or tag if found.
+        """
+        revisions = self.get_short_refs(dest)
+
+        origin_rev = 'origin/%s' % rev
+        if origin_rev in revisions:
+            # remote branch
+            return [revisions[origin_rev]]
+        elif rev in revisions:
+            # a local tag or branch name
+            return [revisions[rev]]
+        else:
+            logger.warning(
+                "Could not find a tag or branch '%s', assuming commit.", rev,
+            )
+            return rev_options
+
+    def check_version(self, dest, rev_options):
+        """
+        Compare the current sha to the ref. ref may be a branch or tag name,
+        but current rev will always point to a sha. This means that a branch
+        or tag will never compare as True. So this ultimately only matches
+        against exact shas.
+        """
+        return self.get_revision(dest).startswith(rev_options[0])
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['config', 'remote.origin.url', url], cwd=dest)
+        self.run_command(['checkout', '-q'] + rev_options, cwd=dest)
+
+        self.update_submodules(dest)
+
+    def update(self, dest, rev_options):
+        # First fetch changes from the default remote
+        if self.get_git_version() >= parse_version('1.9.0'):
+            # fetch tags in addition to everything else
+            self.run_command(['fetch', '-q', '--tags'], cwd=dest)
+        else:
+            self.run_command(['fetch', '-q'], cwd=dest)
+        # Then reset to wanted revision (maybe even origin/master)
+        if rev_options:
+            rev_options = self.check_rev_options(
+                rev_options[0], dest, rev_options,
+            )
+        self.run_command(['reset', '--hard', '-q'] + rev_options, cwd=dest)
+        #: update submodules
+        self.update_submodules(dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to %s)' % rev
+        else:
+            rev_options = ['origin/master']
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Cloning %s%s to %s', url, rev_display, display_path(dest),
+            )
+            self.run_command(['clone', '-q', url, dest])
+
+            if rev:
+                rev_options = self.check_rev_options(rev, dest, rev_options)
+                # Only do a checkout if rev_options differs from HEAD
+                if not self.check_version(dest, rev_options):
+                    self.run_command(
+                        ['checkout', '-q'] + rev_options,
+                        cwd=dest,
+                    )
+            #: repo may contain submodules
+            self.update_submodules(dest)
+
+    def get_url(self, location):
+        """Return URL of the first remote encountered."""
+        remotes = self.run_command(
+            ['config', '--get-regexp', 'remote\..*\.url'],
+            show_stdout=False, cwd=location)
+        remotes = remotes.splitlines()
+        found_remote = remotes[0]
+        for remote in remotes:
+            if remote.startswith('remote.origin.url '):
+                found_remote = remote
+                break
+        url = found_remote.split(' ')[1]
+        return url.strip()
+
+    def get_revision(self, location):
+        current_rev = self.run_command(
+            ['rev-parse', 'HEAD'], show_stdout=False, cwd=location)
+        return current_rev.strip()
+
+    def get_full_refs(self, location):
+        """Yields tuples of (commit, ref) for branches and tags"""
+        output = self.run_command(['show-ref'],
+                                  show_stdout=False, cwd=location)
+        for line in output.strip().splitlines():
+            commit, ref = line.split(' ', 1)
+            yield commit.strip(), ref.strip()
+
+    def is_ref_remote(self, ref):
+        return ref.startswith('refs/remotes/')
+
+    def is_ref_branch(self, ref):
+        return ref.startswith('refs/heads/')
+
+    def is_ref_tag(self, ref):
+        return ref.startswith('refs/tags/')
+
+    def is_ref_commit(self, ref):
+        """A ref is a commit sha if it is not anything else"""
+        return not any((
+            self.is_ref_remote(ref),
+            self.is_ref_branch(ref),
+            self.is_ref_tag(ref),
+        ))
+
+    # Should deprecate `get_refs` since it's ambiguous
+    def get_refs(self, location):
+        return self.get_short_refs(location)
+
+    def get_short_refs(self, location):
+        """Return map of named refs (branches or tags) to commit hashes."""
+        rv = {}
+        for commit, ref in self.get_full_refs(location):
+            ref_name = None
+            if self.is_ref_remote(ref):
+                ref_name = ref[len('refs/remotes/'):]
+            elif self.is_ref_branch(ref):
+                ref_name = ref[len('refs/heads/'):]
+            elif self.is_ref_tag(ref):
+                ref_name = ref[len('refs/tags/'):]
+            if ref_name is not None:
+                rv[ref_name] = commit
+        return rv
+
+    def _get_subdirectory(self, location):
+        """Return the relative path of setup.py to the git repo root."""
+        # find the repo root
+        git_dir = self.run_command(['rev-parse', '--git-dir'],
+                                   show_stdout=False, cwd=location).strip()
+        if not os.path.isabs(git_dir):
+            git_dir = os.path.join(location, git_dir)
+        root_dir = os.path.join(git_dir, '..')
+        # find setup.py
+        orig_location = location
+        while not os.path.exists(os.path.join(location, 'setup.py')):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without
+                # finding setup.py
+                logger.warning(
+                    "Could not find setup.py for directory %s (tried all "
+                    "parent directories)",
+                    orig_location,
+                )
+                return None
+        # relative path of setup.py to repo root
+        if samefile(root_dir, location):
+            return None
+        return os.path.relpath(location, root_dir)
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('git:'):
+            repo = 'git+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev = self.get_revision(location)
+        req = '%s@%s#egg=%s' % (repo, current_rev, egg_project_name)
+        subdirectory = self._get_subdirectory(location)
+        if subdirectory:
+            req += '&subdirectory=' + subdirectory
+        return req
+
+    def get_url_rev(self):
+        """
+        Prefixes stub URLs like 'user@hostname:user/repo.git' with 'ssh://'.
+        That's required because although they use SSH they sometimes doesn't
+        work with a ssh:// scheme (e.g. Github). But we need a scheme for
+        parsing. Hence we remove it again afterwards and return it as a stub.
+        """
+        if '://' not in self.url:
+            assert 'file:' not in self.url
+            self.url = self.url.replace('git+', 'git+ssh://')
+            url, rev = super(Git, self).get_url_rev()
+            url = url.replace('ssh://', '')
+        else:
+            url, rev = super(Git, self).get_url_rev()
+
+        return url, rev
+
+    def update_submodules(self, location):
+        if not os.path.exists(os.path.join(location, '.gitmodules')):
+            return
+        self.run_command(
+            ['submodule', 'update', '--init', '--recursive', '-q'],
+            cwd=location,
+        )
+
+    @classmethod
+    def controls_location(cls, location):
+        if super(Git, cls).controls_location(location):
+            return True
+        try:
+            r = cls().run_command(['rev-parse'],
+                                  cwd=location,
+                                  show_stdout=False,
+                                  on_returncode='ignore')
+            return not r
+        except BadCommand:
+            logger.debug("could not determine if %s is under git control "
+                         "because git is not available", location)
+            return False
+
+
+vcs.register(Git)
diff --git a/venv1/lib/python3.5/site-packages/pip/vcs/mercurial.py b/venv1/lib/python3.5/site-packages/pip/vcs/mercurial.py
new file mode 100644
index 0000000..1aa83b9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/vcs/mercurial.py
@@ -0,0 +1,103 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import tempfile
+
+from pip.utils import display_path, rmtree
+from pip.vcs import vcs, VersionControl
+from pip.download import path_to_url
+from pip._vendor.six.moves import configparser
+
+
+logger = logging.getLogger(__name__)
+
+
+class Mercurial(VersionControl):
+    name = 'hg'
+    dirname = '.hg'
+    repo_name = 'clone'
+    schemes = ('hg', 'hg+http', 'hg+https', 'hg+ssh', 'hg+static-http')
+
+    def export(self, location):
+        """Export the Hg repository at the url to the destination location"""
+        temp_dir = tempfile.mkdtemp('-export', 'pip-')
+        self.unpack(temp_dir)
+        try:
+            self.run_command(
+                ['archive', location], show_stdout=False, cwd=temp_dir)
+        finally:
+            rmtree(temp_dir)
+
+    def switch(self, dest, url, rev_options):
+        repo_config = os.path.join(dest, self.dirname, 'hgrc')
+        config = configparser.SafeConfigParser()
+        try:
+            config.read(repo_config)
+            config.set('paths', 'default', url)
+            with open(repo_config, 'w') as config_file:
+                config.write(config_file)
+        except (OSError, configparser.NoSectionError) as exc:
+            logger.warning(
+                'Could not switch Mercurial repository to %s: %s', url, exc,
+            )
+        else:
+            self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def update(self, dest, rev_options):
+        self.run_command(['pull', '-q'], cwd=dest)
+        self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        if rev:
+            rev_options = [rev]
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_options = []
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Cloning hg %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['clone', '--noupdate', '-q', url, dest])
+            self.run_command(['update', '-q'] + rev_options, cwd=dest)
+
+    def get_url(self, location):
+        url = self.run_command(
+            ['showconfig', 'paths.default'],
+            show_stdout=False, cwd=location).strip()
+        if self._is_local_repository(url):
+            url = path_to_url(url)
+        return url.strip()
+
+    def get_revision(self, location):
+        current_revision = self.run_command(
+            ['parents', '--template={rev}'],
+            show_stdout=False, cwd=location).strip()
+        return current_revision
+
+    def get_revision_hash(self, location):
+        current_rev_hash = self.run_command(
+            ['parents', '--template={node}'],
+            show_stdout=False, cwd=location).strip()
+        return current_rev_hash
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if not repo.lower().startswith('hg:'):
+            repo = 'hg+' + repo
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        if not repo:
+            return None
+        current_rev_hash = self.get_revision_hash(location)
+        return '%s@%s#egg=%s' % (repo, current_rev_hash, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+vcs.register(Mercurial)
diff --git a/venv1/lib/python3.5/site-packages/pip/vcs/subversion.py b/venv1/lib/python3.5/site-packages/pip/vcs/subversion.py
new file mode 100644
index 0000000..4b23156
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/vcs/subversion.py
@@ -0,0 +1,269 @@
+from __future__ import absolute_import
+
+import logging
+import os
+import re
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+from pip.index import Link
+from pip.utils import rmtree, display_path
+from pip.utils.logging import indent_log
+from pip.vcs import vcs, VersionControl
+
+_svn_xml_url_re = re.compile('url="([^"]+)"')
+_svn_rev_re = re.compile('committed-rev="(\d+)"')
+_svn_url_re = re.compile(r'URL: (.+)')
+_svn_revision_re = re.compile(r'Revision: (.+)')
+_svn_info_xml_rev_re = re.compile(r'\s*revision="(\d+)"')
+_svn_info_xml_url_re = re.compile(r'<url>(.*)</url>')
+
+
+logger = logging.getLogger(__name__)
+
+
+class Subversion(VersionControl):
+    name = 'svn'
+    dirname = '.svn'
+    repo_name = 'checkout'
+    schemes = ('svn', 'svn+ssh', 'svn+http', 'svn+https', 'svn+svn')
+
+    def get_info(self, location):
+        """Returns (url, revision), where both are strings"""
+        assert not location.rstrip('/').endswith(self.dirname), \
+            'Bad directory: %s' % location
+        output = self.run_command(
+            ['info', location],
+            show_stdout=False,
+            extra_environ={'LANG': 'C'},
+        )
+        match = _svn_url_re.search(output)
+        if not match:
+            logger.warning(
+                'Cannot determine URL of svn checkout %s',
+                display_path(location),
+            )
+            logger.debug('Output that cannot be parsed: \n%s', output)
+            return None, None
+        url = match.group(1).strip()
+        match = _svn_revision_re.search(output)
+        if not match:
+            logger.warning(
+                'Cannot determine revision of svn checkout %s',
+                display_path(location),
+            )
+            logger.debug('Output that cannot be parsed: \n%s', output)
+            return url, None
+        return url, match.group(1)
+
+    def export(self, location):
+        """Export the svn repository at the url to the destination location"""
+        url, rev = self.get_url_rev()
+        rev_options = get_rev_options(url, rev)
+        url = self.remove_auth_from_url(url)
+        logger.info('Exporting svn repository %s to %s', url, location)
+        with indent_log():
+            if os.path.exists(location):
+                # Subversion doesn't like to check out over an existing
+                # directory --force fixes this, but was only added in svn 1.5
+                rmtree(location)
+            self.run_command(
+                ['export'] + rev_options + [url, location],
+                show_stdout=False)
+
+    def switch(self, dest, url, rev_options):
+        self.run_command(['switch'] + rev_options + [url, dest])
+
+    def update(self, dest, rev_options):
+        self.run_command(['update'] + rev_options + [dest])
+
+    def obtain(self, dest):
+        url, rev = self.get_url_rev()
+        rev_options = get_rev_options(url, rev)
+        url = self.remove_auth_from_url(url)
+        if rev:
+            rev_display = ' (to revision %s)' % rev
+        else:
+            rev_display = ''
+        if self.check_destination(dest, url, rev_options, rev_display):
+            logger.info(
+                'Checking out %s%s to %s',
+                url,
+                rev_display,
+                display_path(dest),
+            )
+            self.run_command(['checkout', '-q'] + rev_options + [url, dest])
+
+    def get_location(self, dist, dependency_links):
+        for url in dependency_links:
+            egg_fragment = Link(url).egg_fragment
+            if not egg_fragment:
+                continue
+            if '-' in egg_fragment:
+                # FIXME: will this work when a package has - in the name?
+                key = '-'.join(egg_fragment.split('-')[:-1]).lower()
+            else:
+                key = egg_fragment
+            if key == dist.key:
+                return url.split('#', 1)[0]
+        return None
+
+    def get_revision(self, location):
+        """
+        Return the maximum revision for all files under a given location
+        """
+        # Note: taken from setuptools.command.egg_info
+        revision = 0
+
+        for base, dirs, files in os.walk(location):
+            if self.dirname not in dirs:
+                dirs[:] = []
+                continue    # no sense walking uncontrolled subdirs
+            dirs.remove(self.dirname)
+            entries_fn = os.path.join(base, self.dirname, 'entries')
+            if not os.path.exists(entries_fn):
+                # FIXME: should we warn?
+                continue
+
+            dirurl, localrev = self._get_svn_url_rev(base)
+
+            if base == location:
+                base_url = dirurl + '/'   # save the root url
+            elif not dirurl or not dirurl.startswith(base_url):
+                dirs[:] = []
+                continue    # not part of the same svn tree, skip it
+            revision = max(revision, localrev)
+        return revision
+
+    def get_url_rev(self):
+        # hotfix the URL scheme after removing svn+ from svn+ssh:// readd it
+        url, rev = super(Subversion, self).get_url_rev()
+        if url.startswith('ssh://'):
+            url = 'svn+' + url
+        return url, rev
+
+    def get_url(self, location):
+        # In cases where the source is in a subdirectory, not alongside
+        # setup.py we have to look up in the location until we find a real
+        # setup.py
+        orig_location = location
+        while not os.path.exists(os.path.join(location, 'setup.py')):
+            last_location = location
+            location = os.path.dirname(location)
+            if location == last_location:
+                # We've traversed up to the root of the filesystem without
+                # finding setup.py
+                logger.warning(
+                    "Could not find setup.py for directory %s (tried all "
+                    "parent directories)",
+                    orig_location,
+                )
+                return None
+
+        return self._get_svn_url_rev(location)[0]
+
+    def _get_svn_url_rev(self, location):
+        from pip.exceptions import InstallationError
+
+        entries_path = os.path.join(location, self.dirname, 'entries')
+        if os.path.exists(entries_path):
+            with open(entries_path) as f:
+                data = f.read()
+        else:  # subversion >= 1.7 does not have the 'entries' file
+            data = ''
+
+        if (data.startswith('8') or
+                data.startswith('9') or
+                data.startswith('10')):
+            data = list(map(str.splitlines, data.split('\n\x0c\n')))
+            del data[0][0]  # get rid of the '8'
+            url = data[0][3]
+            revs = [int(d[9]) for d in data if len(d) > 9 and d[9]] + [0]
+        elif data.startswith('<?xml'):
+            match = _svn_xml_url_re.search(data)
+            if not match:
+                raise ValueError('Badly formatted data: %r' % data)
+            url = match.group(1)    # get repository URL
+            revs = [int(m.group(1)) for m in _svn_rev_re.finditer(data)] + [0]
+        else:
+            try:
+                # subversion >= 1.7
+                xml = self.run_command(
+                    ['info', '--xml', location],
+                    show_stdout=False,
+                )
+                url = _svn_info_xml_url_re.search(xml).group(1)
+                revs = [
+                    int(m.group(1)) for m in _svn_info_xml_rev_re.finditer(xml)
+                ]
+            except InstallationError:
+                url, revs = None, []
+
+        if revs:
+            rev = max(revs)
+        else:
+            rev = 0
+
+        return url, rev
+
+    def get_src_requirement(self, dist, location):
+        repo = self.get_url(location)
+        if repo is None:
+            return None
+        # FIXME: why not project name?
+        egg_project_name = dist.egg_name().split('-', 1)[0]
+        rev = self.get_revision(location)
+        return 'svn+%s@%s#egg=%s' % (repo, rev, egg_project_name)
+
+    def check_version(self, dest, rev_options):
+        """Always assume the versions don't match"""
+        return False
+
+    @staticmethod
+    def remove_auth_from_url(url):
+        # Return a copy of url with 'username:password@' removed.
+        # username/pass params are passed to subversion through flags
+        # and are not recognized in the url.
+
+        # parsed url
+        purl = urllib_parse.urlsplit(url)
+        stripped_netloc = \
+            purl.netloc.split('@')[-1]
+
+        # stripped url
+        url_pieces = (
+            purl.scheme, stripped_netloc, purl.path, purl.query, purl.fragment
+        )
+        surl = urllib_parse.urlunsplit(url_pieces)
+        return surl
+
+
+def get_rev_options(url, rev):
+    if rev:
+        rev_options = ['-r', rev]
+    else:
+        rev_options = []
+
+    r = urllib_parse.urlsplit(url)
+    if hasattr(r, 'username'):
+        # >= Python-2.5
+        username, password = r.username, r.password
+    else:
+        netloc = r[1]
+        if '@' in netloc:
+            auth = netloc.split('@')[0]
+            if ':' in auth:
+                username, password = auth.split(':', 1)
+            else:
+                username, password = auth, None
+        else:
+            username, password = None, None
+
+    if username:
+        rev_options += ['--username', username]
+    if password:
+        rev_options += ['--password', password]
+    return rev_options
+
+
+vcs.register(Subversion)
diff --git a/venv1/lib/python3.5/site-packages/pip/wheel.py b/venv1/lib/python3.5/site-packages/pip/wheel.py
new file mode 100644
index 0000000..9ac9dff
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pip/wheel.py
@@ -0,0 +1,853 @@
+"""
+Support for installing and building the "wheel" binary package format.
+"""
+from __future__ import absolute_import
+
+import compileall
+import csv
+import errno
+import functools
+import hashlib
+import logging
+import os
+import os.path
+import re
+import shutil
+import stat
+import sys
+import tempfile
+import warnings
+
+from base64 import urlsafe_b64encode
+from email.parser import Parser
+
+from pip._vendor.six import StringIO
+
+import pip
+from pip.compat import expanduser
+from pip.download import path_to_url, unpack_url
+from pip.exceptions import (
+    InstallationError, InvalidWheelFilename, UnsupportedWheel)
+from pip.locations import distutils_scheme, PIP_DELETE_MARKER_FILENAME
+from pip import pep425tags
+from pip.utils import (
+    call_subprocess, ensure_dir, captured_stdout, rmtree, read_chunks,
+)
+from pip.utils.ui import open_spinner
+from pip.utils.logging import indent_log
+from pip.utils.setuptools_build import SETUPTOOLS_SHIM
+from pip._vendor.distlib.scripts import ScriptMaker
+from pip._vendor import pkg_resources
+from pip._vendor.packaging.utils import canonicalize_name
+from pip._vendor.six.moves import configparser
+
+
+wheel_ext = '.whl'
+
+VERSION_COMPATIBLE = (1, 0)
+
+
+logger = logging.getLogger(__name__)
+
+
+class WheelCache(object):
+    """A cache of wheels for future installs."""
+
+    def __init__(self, cache_dir, format_control):
+        """Create a wheel cache.
+
+        :param cache_dir: The root of the cache.
+        :param format_control: A pip.index.FormatControl object to limit
+            binaries being read from the cache.
+        """
+        self._cache_dir = expanduser(cache_dir) if cache_dir else None
+        self._format_control = format_control
+
+    def cached_wheel(self, link, package_name):
+        return cached_wheel(
+            self._cache_dir, link, self._format_control, package_name)
+
+
+def _cache_for_link(cache_dir, link):
+    """
+    Return a directory to store cached wheels in for link.
+
+    Because there are M wheels for any one sdist, we provide a directory
+    to cache them in, and then consult that directory when looking up
+    cache hits.
+
+    We only insert things into the cache if they have plausible version
+    numbers, so that we don't contaminate the cache with things that were not
+    unique. E.g. ./package might have dozens of installs done for it and build
+    a version of 0.0...and if we built and cached a wheel, we'd end up using
+    the same wheel even if the source has been edited.
+
+    :param cache_dir: The cache_dir being used by pip.
+    :param link: The link of the sdist for which this will cache wheels.
+    """
+
+    # We want to generate an url to use as our cache key, we don't want to just
+    # re-use the URL because it might have other items in the fragment and we
+    # don't care about those.
+    key_parts = [link.url_without_fragment]
+    if link.hash_name is not None and link.hash is not None:
+        key_parts.append("=".join([link.hash_name, link.hash]))
+    key_url = "#".join(key_parts)
+
+    # Encode our key url with sha224, we'll use this because it has similar
+    # security properties to sha256, but with a shorter total output (and thus
+    # less secure). However the differences don't make a lot of difference for
+    # our use case here.
+    hashed = hashlib.sha224(key_url.encode()).hexdigest()
+
+    # We want to nest the directories some to prevent having a ton of top level
+    # directories where we might run out of sub directories on some FS.
+    parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
+
+    # Inside of the base location for cached wheels, expand our parts and join
+    # them all together.
+    return os.path.join(cache_dir, "wheels", *parts)
+
+
+def cached_wheel(cache_dir, link, format_control, package_name):
+    if not cache_dir:
+        return link
+    if not link:
+        return link
+    if link.is_wheel:
+        return link
+    if not link.is_artifact:
+        return link
+    if not package_name:
+        return link
+    canonical_name = canonicalize_name(package_name)
+    formats = pip.index.fmt_ctl_formats(format_control, canonical_name)
+    if "binary" not in formats:
+        return link
+    root = _cache_for_link(cache_dir, link)
+    try:
+        wheel_names = os.listdir(root)
+    except OSError as e:
+        if e.errno in (errno.ENOENT, errno.ENOTDIR):
+            return link
+        raise
+    candidates = []
+    for wheel_name in wheel_names:
+        try:
+            wheel = Wheel(wheel_name)
+        except InvalidWheelFilename:
+            continue
+        if not wheel.supported():
+            # Built for a different python/arch/etc
+            continue
+        candidates.append((wheel.support_index_min(), wheel_name))
+    if not candidates:
+        return link
+    candidates.sort()
+    path = os.path.join(root, candidates[0][1])
+    return pip.index.Link(path_to_url(path))
+
+
+def rehash(path, algo='sha256', blocksize=1 << 20):
+    """Return (hash, length) for path using hashlib.new(algo)"""
+    h = hashlib.new(algo)
+    length = 0
+    with open(path, 'rb') as f:
+        for block in read_chunks(f, size=blocksize):
+            length += len(block)
+            h.update(block)
+    digest = 'sha256=' + urlsafe_b64encode(
+        h.digest()
+    ).decode('latin1').rstrip('=')
+    return (digest, length)
+
+
+def open_for_csv(name, mode):
+    if sys.version_info[0] < 3:
+        nl = {}
+        bin = 'b'
+    else:
+        nl = {'newline': ''}
+        bin = ''
+    return open(name, mode + bin, **nl)
+
+
+def fix_script(path):
+    """Replace #!python with #!/path/to/python
+    Return True if file was changed."""
+    # XXX RECORD hashes will need to be updated
+    if os.path.isfile(path):
+        with open(path, 'rb') as script:
+            firstline = script.readline()
+            if not firstline.startswith(b'#!python'):
+                return False
+            exename = sys.executable.encode(sys.getfilesystemencoding())
+            firstline = b'#!' + exename + os.linesep.encode("ascii")
+            rest = script.read()
+        with open(path, 'wb') as script:
+            script.write(firstline)
+            script.write(rest)
+        return True
+
+dist_info_re = re.compile(r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
+                                \.dist-info$""", re.VERBOSE)
+
+
+def root_is_purelib(name, wheeldir):
+    """
+    Return True if the extracted wheel in wheeldir should go into purelib.
+    """
+    name_folded = name.replace("-", "_")
+    for item in os.listdir(wheeldir):
+        match = dist_info_re.match(item)
+        if match and match.group('name') == name_folded:
+            with open(os.path.join(wheeldir, item, 'WHEEL')) as wheel:
+                for line in wheel:
+                    line = line.lower().rstrip()
+                    if line == "root-is-purelib: true":
+                        return True
+    return False
+
+
+def get_entrypoints(filename):
+    if not os.path.exists(filename):
+        return {}, {}
+
+    # This is done because you can pass a string to entry_points wrappers which
+    # means that they may or may not be valid INI files. The attempt here is to
+    # strip leading and trailing whitespace in order to make them valid INI
+    # files.
+    with open(filename) as fp:
+        data = StringIO()
+        for line in fp:
+            data.write(line.strip())
+            data.write("\n")
+        data.seek(0)
+
+    cp = configparser.RawConfigParser()
+    cp.optionxform = lambda option: option
+    cp.readfp(data)
+
+    console = {}
+    gui = {}
+    if cp.has_section('console_scripts'):
+        console = dict(cp.items('console_scripts'))
+    if cp.has_section('gui_scripts'):
+        gui = dict(cp.items('gui_scripts'))
+    return console, gui
+
+
+def move_wheel_files(name, req, wheeldir, user=False, home=None, root=None,
+                     pycompile=True, scheme=None, isolated=False, prefix=None):
+    """Install a wheel"""
+
+    if not scheme:
+        scheme = distutils_scheme(
+            name, user=user, home=home, root=root, isolated=isolated,
+            prefix=prefix,
+        )
+
+    if root_is_purelib(name, wheeldir):
+        lib_dir = scheme['purelib']
+    else:
+        lib_dir = scheme['platlib']
+
+    info_dir = []
+    data_dirs = []
+    source = wheeldir.rstrip(os.path.sep) + os.path.sep
+
+    # Record details of the files moved
+    #   installed = files copied from the wheel to the destination
+    #   changed = files changed while installing (scripts #! line typically)
+    #   generated = files newly generated during the install (script wrappers)
+    installed = {}
+    changed = set()
+    generated = []
+
+    # Compile all of the pyc files that we're going to be installing
+    if pycompile:
+        with captured_stdout() as stdout:
+            with warnings.catch_warnings():
+                warnings.filterwarnings('ignore')
+                compileall.compile_dir(source, force=True, quiet=True)
+        logger.debug(stdout.getvalue())
+
+    def normpath(src, p):
+        return os.path.relpath(src, p).replace(os.path.sep, '/')
+
+    def record_installed(srcfile, destfile, modified=False):
+        """Map archive RECORD paths to installation RECORD paths."""
+        oldpath = normpath(srcfile, wheeldir)
+        newpath = normpath(destfile, lib_dir)
+        installed[oldpath] = newpath
+        if modified:
+            changed.add(destfile)
+
+    def clobber(source, dest, is_base, fixer=None, filter=None):
+        ensure_dir(dest)  # common for the 'include' path
+
+        for dir, subdirs, files in os.walk(source):
+            basedir = dir[len(source):].lstrip(os.path.sep)
+            destdir = os.path.join(dest, basedir)
+            if is_base and basedir.split(os.path.sep, 1)[0].endswith('.data'):
+                continue
+            for s in subdirs:
+                destsubdir = os.path.join(dest, basedir, s)
+                if is_base and basedir == '' and destsubdir.endswith('.data'):
+                    data_dirs.append(s)
+                    continue
+                elif (is_base and
+                        s.endswith('.dist-info') and
+                        canonicalize_name(s).startswith(
+                            canonicalize_name(req.name))):
+                    assert not info_dir, ('Multiple .dist-info directories: ' +
+                                          destsubdir + ', ' +
+                                          ', '.join(info_dir))
+                    info_dir.append(destsubdir)
+            for f in files:
+                # Skip unwanted files
+                if filter and filter(f):
+                    continue
+                srcfile = os.path.join(dir, f)
+                destfile = os.path.join(dest, basedir, f)
+                # directory creation is lazy and after the file filtering above
+                # to ensure we don't install empty dirs; empty dirs can't be
+                # uninstalled.
+                ensure_dir(destdir)
+
+                # We use copyfile (not move, copy, or copy2) to be extra sure
+                # that we are not moving directories over (copyfile fails for
+                # directories) as well as to ensure that we are not copying
+                # over any metadata because we want more control over what
+                # metadata we actually copy over.
+                shutil.copyfile(srcfile, destfile)
+
+                # Copy over the metadata for the file, currently this only
+                # includes the atime and mtime.
+                st = os.stat(srcfile)
+                if hasattr(os, "utime"):
+                    os.utime(destfile, (st.st_atime, st.st_mtime))
+
+                # If our file is executable, then make our destination file
+                # executable.
+                if os.access(srcfile, os.X_OK):
+                    st = os.stat(srcfile)
+                    permissions = (
+                        st.st_mode | stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
+                    )
+                    os.chmod(destfile, permissions)
+
+                changed = False
+                if fixer:
+                    changed = fixer(destfile)
+                record_installed(srcfile, destfile, changed)
+
+    clobber(source, lib_dir, True)
+
+    assert info_dir, "%s .dist-info directory not found" % req
+
+    # Get the defined entry points
+    ep_file = os.path.join(info_dir[0], 'entry_points.txt')
+    console, gui = get_entrypoints(ep_file)
+
+    def is_entrypoint_wrapper(name):
+        # EP, EP.exe and EP-script.py are scripts generated for
+        # entry point EP by setuptools
+        if name.lower().endswith('.exe'):
+            matchname = name[:-4]
+        elif name.lower().endswith('-script.py'):
+            matchname = name[:-10]
+        elif name.lower().endswith(".pya"):
+            matchname = name[:-4]
+        else:
+            matchname = name
+        # Ignore setuptools-generated scripts
+        return (matchname in console or matchname in gui)
+
+    for datadir in data_dirs:
+        fixer = None
+        filter = None
+        for subdir in os.listdir(os.path.join(wheeldir, datadir)):
+            fixer = None
+            if subdir == 'scripts':
+                fixer = fix_script
+                filter = is_entrypoint_wrapper
+            source = os.path.join(wheeldir, datadir, subdir)
+            dest = scheme[subdir]
+            clobber(source, dest, False, fixer=fixer, filter=filter)
+
+    maker = ScriptMaker(None, scheme['scripts'])
+
+    # Ensure old scripts are overwritten.
+    # See https://github.com/pypa/pip/issues/1800
+    maker.clobber = True
+
+    # Ensure we don't generate any variants for scripts because this is almost
+    # never what somebody wants.
+    # See https://bitbucket.org/pypa/distlib/issue/35/
+    maker.variants = set(('', ))
+
+    # This is required because otherwise distlib creates scripts that are not
+    # executable.
+    # See https://bitbucket.org/pypa/distlib/issue/32/
+    maker.set_mode = True
+
+    # Simplify the script and fix the fact that the default script swallows
+    # every single stack trace.
+    # See https://bitbucket.org/pypa/distlib/issue/34/
+    # See https://bitbucket.org/pypa/distlib/issue/33/
+    def _get_script_text(entry):
+        if entry.suffix is None:
+            raise InstallationError(
+                "Invalid script entry point: %s for req: %s - A callable "
+                "suffix is required. Cf https://packaging.python.org/en/"
+                "latest/distributing.html#console-scripts for more "
+                "information." % (entry, req)
+            )
+        return maker.script_template % {
+            "module": entry.prefix,
+            "import_name": entry.suffix.split(".")[0],
+            "func": entry.suffix,
+        }
+
+    maker._get_script_text = _get_script_text
+    maker.script_template = """# -*- coding: utf-8 -*-
+import re
+import sys
+
+from %(module)s import %(import_name)s
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(%(func)s())
+"""
+
+    # Special case pip and setuptools to generate versioned wrappers
+    #
+    # The issue is that some projects (specifically, pip and setuptools) use
+    # code in setup.py to create "versioned" entry points - pip2.7 on Python
+    # 2.7, pip3.3 on Python 3.3, etc. But these entry points are baked into
+    # the wheel metadata at build time, and so if the wheel is installed with
+    # a *different* version of Python the entry points will be wrong. The
+    # correct fix for this is to enhance the metadata to be able to describe
+    # such versioned entry points, but that won't happen till Metadata 2.0 is
+    # available.
+    # In the meantime, projects using versioned entry points will either have
+    # incorrect versioned entry points, or they will not be able to distribute
+    # "universal" wheels (i.e., they will need a wheel per Python version).
+    #
+    # Because setuptools and pip are bundled with _ensurepip and virtualenv,
+    # we need to use universal wheels. So, as a stopgap until Metadata 2.0, we
+    # override the versioned entry points in the wheel and generate the
+    # correct ones. This code is purely a short-term measure until Metadata 2.0
+    # is available.
+    #
+    # To add the level of hack in this section of code, in order to support
+    # ensurepip this code will look for an ``ENSUREPIP_OPTIONS`` environment
+    # variable which will control which version scripts get installed.
+    #
+    # ENSUREPIP_OPTIONS=altinstall
+    #   - Only pipX.Y and easy_install-X.Y will be generated and installed
+    # ENSUREPIP_OPTIONS=install
+    #   - pipX.Y, pipX, easy_install-X.Y will be generated and installed. Note
+    #     that this option is technically if ENSUREPIP_OPTIONS is set and is
+    #     not altinstall
+    # DEFAULT
+    #   - The default behavior is to install pip, pipX, pipX.Y, easy_install
+    #     and easy_install-X.Y.
+    pip_script = console.pop('pip', None)
+    if pip_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'pip = ' + pip_script
+            generated.extend(maker.make(spec))
+
+        if os.environ.get("ENSUREPIP_OPTIONS", "") != "altinstall":
+            spec = 'pip%s = %s' % (sys.version[:1], pip_script)
+            generated.extend(maker.make(spec))
+
+        spec = 'pip%s = %s' % (sys.version[:3], pip_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned pip entry points
+        pip_ep = [k for k in console if re.match(r'pip(\d(\.\d)?)?$', k)]
+        for k in pip_ep:
+            del console[k]
+    easy_install_script = console.pop('easy_install', None)
+    if easy_install_script:
+        if "ENSUREPIP_OPTIONS" not in os.environ:
+            spec = 'easy_install = ' + easy_install_script
+            generated.extend(maker.make(spec))
+
+        spec = 'easy_install-%s = %s' % (sys.version[:3], easy_install_script)
+        generated.extend(maker.make(spec))
+        # Delete any other versioned easy_install entry points
+        easy_install_ep = [
+            k for k in console if re.match(r'easy_install(-\d\.\d)?$', k)
+        ]
+        for k in easy_install_ep:
+            del console[k]
+
+    # Generate the console and GUI entry points specified in the wheel
+    if len(console) > 0:
+        generated.extend(
+            maker.make_multiple(['%s = %s' % kv for kv in console.items()])
+        )
+    if len(gui) > 0:
+        generated.extend(
+            maker.make_multiple(
+                ['%s = %s' % kv for kv in gui.items()],
+                {'gui': True}
+            )
+        )
+
+    # Record pip as the installer
+    installer = os.path.join(info_dir[0], 'INSTALLER')
+    temp_installer = os.path.join(info_dir[0], 'INSTALLER.pip')
+    with open(temp_installer, 'wb') as installer_file:
+        installer_file.write(b'pip\n')
+    shutil.move(temp_installer, installer)
+    generated.append(installer)
+
+    # Record details of all files installed
+    record = os.path.join(info_dir[0], 'RECORD')
+    temp_record = os.path.join(info_dir[0], 'RECORD.pip')
+    with open_for_csv(record, 'r') as record_in:
+        with open_for_csv(temp_record, 'w+') as record_out:
+            reader = csv.reader(record_in)
+            writer = csv.writer(record_out)
+            for row in reader:
+                row[0] = installed.pop(row[0], row[0])
+                if row[0] in changed:
+                    row[1], row[2] = rehash(row[0])
+                writer.writerow(row)
+            for f in generated:
+                h, l = rehash(f)
+                writer.writerow((normpath(f, lib_dir), h, l))
+            for f in installed:
+                writer.writerow((installed[f], '', ''))
+    shutil.move(temp_record, record)
+
+
+def _unique(fn):
+    @functools.wraps(fn)
+    def unique(*args, **kw):
+        seen = set()
+        for item in fn(*args, **kw):
+            if item not in seen:
+                seen.add(item)
+                yield item
+    return unique
+
+
+# TODO: this goes somewhere besides the wheel module
+@_unique
+def uninstallation_paths(dist):
+    """
+    Yield all the uninstallation paths for dist based on RECORD-without-.pyc
+
+    Yield paths to all the files in RECORD. For each .py file in RECORD, add
+    the .pyc in the same directory.
+
+    UninstallPathSet.add() takes care of the __pycache__ .pyc.
+    """
+    from pip.utils import FakeFile  # circular import
+    r = csv.reader(FakeFile(dist.get_metadata_lines('RECORD')))
+    for row in r:
+        path = os.path.join(dist.location, row[0])
+        yield path
+        if path.endswith('.py'):
+            dn, fn = os.path.split(path)
+            base = fn[:-3]
+            path = os.path.join(dn, base + '.pyc')
+            yield path
+
+
+def wheel_version(source_dir):
+    """
+    Return the Wheel-Version of an extracted wheel, if possible.
+
+    Otherwise, return False if we couldn't parse / extract it.
+    """
+    try:
+        dist = [d for d in pkg_resources.find_on_path(None, source_dir)][0]
+
+        wheel_data = dist.get_metadata('WHEEL')
+        wheel_data = Parser().parsestr(wheel_data)
+
+        version = wheel_data['Wheel-Version'].strip()
+        version = tuple(map(int, version.split('.')))
+        return version
+    except:
+        return False
+
+
+def check_compatibility(version, name):
+    """
+    Raises errors or warns if called with an incompatible Wheel-Version.
+
+    Pip should refuse to install a Wheel-Version that's a major series
+    ahead of what it's compatible with (e.g 2.0 > 1.1); and warn when
+    installing a version only minor version ahead (e.g 1.2 > 1.1).
+
+    version: a 2-tuple representing a Wheel-Version (Major, Minor)
+    name: name of wheel or package to raise exception about
+
+    :raises UnsupportedWheel: when an incompatible Wheel-Version is given
+    """
+    if not version:
+        raise UnsupportedWheel(
+            "%s is in an unsupported or invalid wheel" % name
+        )
+    if version[0] > VERSION_COMPATIBLE[0]:
+        raise UnsupportedWheel(
+            "%s's Wheel-Version (%s) is not compatible with this version "
+            "of pip" % (name, '.'.join(map(str, version)))
+        )
+    elif version > VERSION_COMPATIBLE:
+        logger.warning(
+            'Installing from a newer Wheel-Version (%s)',
+            '.'.join(map(str, version)),
+        )
+
+
+class Wheel(object):
+    """A wheel file"""
+
+    # TODO: maybe move the install code into this class
+
+    wheel_file_re = re.compile(
+        r"""^(?P<namever>(?P<name>.+?)-(?P<ver>\d.*?))
+        ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
+        \.whl|\.dist-info)$""",
+        re.VERBOSE
+    )
+
+    def __init__(self, filename):
+        """
+        :raises InvalidWheelFilename: when the filename is invalid for a wheel
+        """
+        wheel_info = self.wheel_file_re.match(filename)
+        if not wheel_info:
+            raise InvalidWheelFilename(
+                "%s is not a valid wheel filename." % filename
+            )
+        self.filename = filename
+        self.name = wheel_info.group('name').replace('_', '-')
+        # we'll assume "_" means "-" due to wheel naming scheme
+        # (https://github.com/pypa/pip/issues/1150)
+        self.version = wheel_info.group('ver').replace('_', '-')
+        self.pyversions = wheel_info.group('pyver').split('.')
+        self.abis = wheel_info.group('abi').split('.')
+        self.plats = wheel_info.group('plat').split('.')
+
+        # All the tag combinations from this file
+        self.file_tags = set(
+            (x, y, z) for x in self.pyversions
+            for y in self.abis for z in self.plats
+        )
+
+    def support_index_min(self, tags=None):
+        """
+        Return the lowest index that one of the wheel's file_tag combinations
+        achieves in the supported_tags list e.g. if there are 8 supported tags,
+        and one of the file tags is first in the list, then return 0.  Returns
+        None is the wheel is not supported.
+        """
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        indexes = [tags.index(c) for c in self.file_tags if c in tags]
+        return min(indexes) if indexes else None
+
+    def supported(self, tags=None):
+        """Is this wheel supported on this system?"""
+        if tags is None:  # for mock
+            tags = pep425tags.supported_tags
+        return bool(set(tags).intersection(self.file_tags))
+
+
+class WheelBuilder(object):
+    """Build wheels from a RequirementSet."""
+
+    def __init__(self, requirement_set, finder, build_options=None,
+                 global_options=None):
+        self.requirement_set = requirement_set
+        self.finder = finder
+        self._cache_root = requirement_set._wheel_cache._cache_dir
+        self._wheel_dir = requirement_set.wheel_download_dir
+        self.build_options = build_options or []
+        self.global_options = global_options or []
+
+    def _build_one(self, req, output_dir, python_tag=None):
+        """Build one wheel.
+
+        :return: The filename of the built wheel, or None if the build failed.
+        """
+        tempd = tempfile.mkdtemp('pip-wheel-')
+        try:
+            if self.__build_one(req, tempd, python_tag=python_tag):
+                try:
+                    wheel_name = os.listdir(tempd)[0]
+                    wheel_path = os.path.join(output_dir, wheel_name)
+                    shutil.move(os.path.join(tempd, wheel_name), wheel_path)
+                    logger.info('Stored in directory: %s', output_dir)
+                    return wheel_path
+                except:
+                    pass
+            # Ignore return, we can't do anything else useful.
+            self._clean_one(req)
+            return None
+        finally:
+            rmtree(tempd)
+
+    def _base_setup_args(self, req):
+        return [
+            sys.executable, "-u", '-c',
+            SETUPTOOLS_SHIM % req.setup_py
+        ] + list(self.global_options)
+
+    def __build_one(self, req, tempd, python_tag=None):
+        base_args = self._base_setup_args(req)
+
+        spin_message = 'Running setup.py bdist_wheel for %s' % (req.name,)
+        with open_spinner(spin_message) as spinner:
+            logger.debug('Destination directory: %s', tempd)
+            wheel_args = base_args + ['bdist_wheel', '-d', tempd] \
+                + self.build_options
+
+            if python_tag is not None:
+                wheel_args += ["--python-tag", python_tag]
+
+            try:
+                call_subprocess(wheel_args, cwd=req.setup_py_dir,
+                                show_stdout=False, spinner=spinner)
+                return True
+            except:
+                spinner.finish("error")
+                logger.error('Failed building wheel for %s', req.name)
+                return False
+
+    def _clean_one(self, req):
+        base_args = self._base_setup_args(req)
+
+        logger.info('Running setup.py clean for %s', req.name)
+        clean_args = base_args + ['clean', '--all']
+        try:
+            call_subprocess(clean_args, cwd=req.source_dir, show_stdout=False)
+            return True
+        except:
+            logger.error('Failed cleaning build dir for %s', req.name)
+            return False
+
+    def build(self, autobuilding=False):
+        """Build wheels.
+
+        :param unpack: If True, replace the sdist we built from with the
+            newly built wheel, in preparation for installation.
+        :return: True if all the wheels built correctly.
+        """
+        assert self._wheel_dir or (autobuilding and self._cache_root)
+        # unpack sdists and constructs req set
+        self.requirement_set.prepare_files(self.finder)
+
+        reqset = self.requirement_set.requirements.values()
+
+        buildset = []
+        for req in reqset:
+            if req.constraint:
+                continue
+            if req.is_wheel:
+                if not autobuilding:
+                    logger.info(
+                        'Skipping %s, due to already being wheel.', req.name)
+            elif autobuilding and req.editable:
+                pass
+            elif autobuilding and req.link and not req.link.is_artifact:
+                pass
+            elif autobuilding and not req.source_dir:
+                pass
+            else:
+                if autobuilding:
+                    link = req.link
+                    base, ext = link.splitext()
+                    if pip.index.egg_info_matches(base, None, link) is None:
+                        # Doesn't look like a package - don't autobuild a wheel
+                        # because we'll have no way to lookup the result sanely
+                        continue
+                    if "binary" not in pip.index.fmt_ctl_formats(
+                            self.finder.format_control,
+                            canonicalize_name(req.name)):
+                        logger.info(
+                            "Skipping bdist_wheel for %s, due to binaries "
+                            "being disabled for it.", req.name)
+                        continue
+                buildset.append(req)
+
+        if not buildset:
+            return True
+
+        # Build the wheels.
+        logger.info(
+            'Building wheels for collected packages: %s',
+            ', '.join([req.name for req in buildset]),
+        )
+        with indent_log():
+            build_success, build_failure = [], []
+            for req in buildset:
+                python_tag = None
+                if autobuilding:
+                    python_tag = pep425tags.implementation_tag
+                    output_dir = _cache_for_link(self._cache_root, req.link)
+                    try:
+                        ensure_dir(output_dir)
+                    except OSError as e:
+                        logger.warning("Building wheel for %s failed: %s",
+                                       req.name, e)
+                        build_failure.append(req)
+                        continue
+                else:
+                    output_dir = self._wheel_dir
+                wheel_file = self._build_one(
+                    req, output_dir,
+                    python_tag=python_tag,
+                )
+                if wheel_file:
+                    build_success.append(req)
+                    if autobuilding:
+                        # XXX: This is mildly duplicative with prepare_files,
+                        # but not close enough to pull out to a single common
+                        # method.
+                        # The code below assumes temporary source dirs -
+                        # prevent it doing bad things.
+                        if req.source_dir and not os.path.exists(os.path.join(
+                                req.source_dir, PIP_DELETE_MARKER_FILENAME)):
+                            raise AssertionError(
+                                "bad source dir - missing marker")
+                        # Delete the source we built the wheel from
+                        req.remove_temporary_source()
+                        # set the build directory again - name is known from
+                        # the work prepare_files did.
+                        req.source_dir = req.build_location(
+                            self.requirement_set.build_dir)
+                        # Update the link for this.
+                        req.link = pip.index.Link(
+                            path_to_url(wheel_file))
+                        assert req.link.is_wheel
+                        # extract the wheel into the dir
+                        unpack_url(
+                            req.link, req.source_dir, None, False,
+                            session=self.requirement_set.session)
+                else:
+                    build_failure.append(req)
+
+        # notify success/failure
+        if build_success:
+            logger.info(
+                'Successfully built %s',
+                ' '.join([req.name for req in build_success]),
+            )
+        if build_failure:
+            logger.info(
+                'Failed to build %s',
+                ' '.join([req.name for req in build_failure]),
+            )
+        # Return True if all builds were successful
+        return len(build_failure) == 0
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/__init__.py b/venv1/lib/python3.5/site-packages/pkg_resources/__init__.py
new file mode 100644
index 0000000..7333464
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/__init__.py
@@ -0,0 +1,3181 @@
+# coding: utf-8
+"""
+Package resource API
+--------------------
+
+A resource is a logical file contained within a package, or a logical
+subdirectory thereof.  The package resource API expects resource names
+to have their path parts separated with ``/``, *not* whatever the local
+path separator is.  Do not use os.path operations to manipulate resource
+names being passed into the API.
+
+The package resource API is designed to work with normal filesystem packages,
+.egg files, and unpacked .egg files.  It can also work in a limited way with
+.zip files and with custom PEP 302 loaders that support the ``get_data()``
+method.
+"""
+
+from __future__ import absolute_import
+
+import sys
+import os
+import io
+import time
+import re
+import types
+import zipfile
+import zipimport
+import warnings
+import stat
+import functools
+import pkgutil
+import operator
+import platform
+import collections
+import plistlib
+import email.parser
+import errno
+import tempfile
+import textwrap
+import itertools
+import inspect
+from pkgutil import get_importer
+
+try:
+    import _imp
+except ImportError:
+    # Python 3.2 compatibility
+    import imp as _imp
+
+from pkg_resources.extern import six
+from pkg_resources.extern.six.moves import urllib, map, filter
+
+# capture these to bypass sandboxing
+from os import utime
+try:
+    from os import mkdir, rename, unlink
+    WRITE_SUPPORT = True
+except ImportError:
+    # no write support, probably under GAE
+    WRITE_SUPPORT = False
+
+from os import open as os_open
+from os.path import isdir, split
+
+try:
+    import importlib.machinery as importlib_machinery
+    # access attribute to force import under delayed import mechanisms.
+    importlib_machinery.__name__
+except ImportError:
+    importlib_machinery = None
+
+from . import py31compat
+from pkg_resources.extern import appdirs
+from pkg_resources.extern import packaging
+__import__('pkg_resources.extern.packaging.version')
+__import__('pkg_resources.extern.packaging.specifiers')
+__import__('pkg_resources.extern.packaging.requirements')
+__import__('pkg_resources.extern.packaging.markers')
+
+
+if (3, 0) < sys.version_info < (3, 3):
+    raise RuntimeError("Python 3.3 or later is required")
+
+if six.PY2:
+    # Those builtin exceptions are only defined in Python 3
+    PermissionError = None
+    NotADirectoryError = None
+
+# declare some globals that will be defined later to
+# satisfy the linters.
+require = None
+working_set = None
+
+
+class PEP440Warning(RuntimeWarning):
+    """
+    Used when there is an issue with a version or specifier not complying with
+    PEP 440.
+    """
+
+
+class _SetuptoolsVersionMixin(object):
+    def __hash__(self):
+        return super(_SetuptoolsVersionMixin, self).__hash__()
+
+    def __lt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) < other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__lt__(other)
+
+    def __le__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) <= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__le__(other)
+
+    def __eq__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) == other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__eq__(other)
+
+    def __ge__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) >= other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ge__(other)
+
+    def __gt__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) > other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__gt__(other)
+
+    def __ne__(self, other):
+        if isinstance(other, tuple):
+            return tuple(self) != other
+        else:
+            return super(_SetuptoolsVersionMixin, self).__ne__(other)
+
+    def __getitem__(self, key):
+        return tuple(self)[key]
+
+    def __iter__(self):
+        component_re = re.compile(r'(\d+ | [a-z]+ | \.| -)', re.VERBOSE)
+        replace = {
+            'pre': 'c',
+            'preview': 'c',
+            '-': 'final-',
+            'rc': 'c',
+            'dev': '@',
+        }.get
+
+        def _parse_version_parts(s):
+            for part in component_re.split(s):
+                part = replace(part, part)
+                if not part or part == '.':
+                    continue
+                if part[:1] in '0123456789':
+                    # pad for numeric comparison
+                    yield part.zfill(8)
+                else:
+                    yield '*' + part
+
+            # ensure that alpha/beta/candidate are before final
+            yield '*final'
+
+        def old_parse_version(s):
+            parts = []
+            for part in _parse_version_parts(s.lower()):
+                if part.startswith('*'):
+                    # remove '-' before a prerelease tag
+                    if part < '*final':
+                        while parts and parts[-1] == '*final-':
+                            parts.pop()
+                    # remove trailing zeros from each series of numeric parts
+                    while parts and parts[-1] == '00000000':
+                        parts.pop()
+                parts.append(part)
+            return tuple(parts)
+
+        # Warn for use of this function
+        warnings.warn(
+            "You have iterated over the result of "
+            "pkg_resources.parse_version. This is a legacy behavior which is "
+            "inconsistent with the new version class introduced in setuptools "
+            "8.0. In most cases, conversion to a tuple is unnecessary. For "
+            "comparison of versions, sort the Version instances directly. If "
+            "you have another use case requiring the tuple, please file a "
+            "bug with the setuptools project describing that need.",
+            RuntimeWarning,
+            stacklevel=1,
+        )
+
+        for part in old_parse_version(str(self)):
+            yield part
+
+
+class SetuptoolsVersion(_SetuptoolsVersionMixin, packaging.version.Version):
+    pass
+
+
+class SetuptoolsLegacyVersion(_SetuptoolsVersionMixin,
+                              packaging.version.LegacyVersion):
+    pass
+
+
+def parse_version(v):
+    try:
+        return SetuptoolsVersion(v)
+    except packaging.version.InvalidVersion:
+        return SetuptoolsLegacyVersion(v)
+
+
+_state_vars = {}
+
+
+def _declare_state(vartype, **kw):
+    globals().update(kw)
+    _state_vars.update(dict.fromkeys(kw, vartype))
+
+
+def __getstate__():
+    state = {}
+    g = globals()
+    for k, v in _state_vars.items():
+        state[k] = g['_sget_' + v](g[k])
+    return state
+
+
+def __setstate__(state):
+    g = globals()
+    for k, v in state.items():
+        g['_sset_' + _state_vars[k]](k, g[k], v)
+    return state
+
+
+def _sget_dict(val):
+    return val.copy()
+
+
+def _sset_dict(key, ob, state):
+    ob.clear()
+    ob.update(state)
+
+
+def _sget_object(val):
+    return val.__getstate__()
+
+
+def _sset_object(key, ob, state):
+    ob.__setstate__(state)
+
+
+_sget_none = _sset_none = lambda *args: None
+
+
+def get_supported_platform():
+    """Return this platform's maximum compatible version.
+
+    distutils.util.get_platform() normally reports the minimum version
+    of Mac OS X that would be required to *use* extensions produced by
+    distutils.  But what we want when checking compatibility is to know the
+    version of Mac OS X that we are *running*.  To allow usage of packages that
+    explicitly require a newer version of Mac OS X, we must also know the
+    current version of the OS.
+
+    If this condition occurs for any other platform with a version in its
+    platform strings, this function should be extended accordingly.
+    """
+    plat = get_build_platform()
+    m = macosVersionString.match(plat)
+    if m is not None and sys.platform == "darwin":
+        try:
+            plat = 'macosx-%s-%s' % ('.'.join(_macosx_vers()[:2]), m.group(3))
+        except ValueError:
+            # not Mac OS X
+            pass
+    return plat
+
+
+__all__ = [
+    # Basic resource access and distribution/entry point discovery
+    'require', 'run_script', 'get_provider', 'get_distribution',
+    'load_entry_point', 'get_entry_map', 'get_entry_info',
+    'iter_entry_points',
+    'resource_string', 'resource_stream', 'resource_filename',
+    'resource_listdir', 'resource_exists', 'resource_isdir',
+
+    # Environmental control
+    'declare_namespace', 'working_set', 'add_activation_listener',
+    'find_distributions', 'set_extraction_path', 'cleanup_resources',
+    'get_default_cache',
+
+    # Primary implementation classes
+    'Environment', 'WorkingSet', 'ResourceManager',
+    'Distribution', 'Requirement', 'EntryPoint',
+
+    # Exceptions
+    'ResolutionError', 'VersionConflict', 'DistributionNotFound',
+    'UnknownExtra', 'ExtractionError',
+
+    # Warnings
+    'PEP440Warning',
+
+    # Parsing functions and string utilities
+    'parse_requirements', 'parse_version', 'safe_name', 'safe_version',
+    'get_platform', 'compatible_platforms', 'yield_lines', 'split_sections',
+    'safe_extra', 'to_filename', 'invalid_marker', 'evaluate_marker',
+
+    # filesystem utilities
+    'ensure_directory', 'normalize_path',
+
+    # Distribution "precedence" constants
+    'EGG_DIST', 'BINARY_DIST', 'SOURCE_DIST', 'CHECKOUT_DIST', 'DEVELOP_DIST',
+
+    # "Provider" interfaces, implementations, and registration/lookup APIs
+    'IMetadataProvider', 'IResourceProvider', 'FileMetadata',
+    'PathMetadata', 'EggMetadata', 'EmptyProvider', 'empty_provider',
+    'NullProvider', 'EggProvider', 'DefaultProvider', 'ZipProvider',
+    'register_finder', 'register_namespace_handler', 'register_loader_type',
+    'fixup_namespace_packages', 'get_importer',
+
+    # Deprecated/backward compatibility only
+    'run_main', 'AvailableDistributions',
+]
+
+
+class ResolutionError(Exception):
+    """Abstract base for dependency resolution errors"""
+
+    def __repr__(self):
+        return self.__class__.__name__ + repr(self.args)
+
+
+class VersionConflict(ResolutionError):
+    """
+    An already-installed version conflicts with the requested version.
+
+    Should be initialized with the installed Distribution and the requested
+    Requirement.
+    """
+
+    _template = "{self.dist} is installed but {self.req} is required"
+
+    @property
+    def dist(self):
+        return self.args[0]
+
+    @property
+    def req(self):
+        return self.args[1]
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def with_context(self, required_by):
+        """
+        If required_by is non-empty, return a version of self that is a
+        ContextualVersionConflict.
+        """
+        if not required_by:
+            return self
+        args = self.args + (required_by,)
+        return ContextualVersionConflict(*args)
+
+
+class ContextualVersionConflict(VersionConflict):
+    """
+    A VersionConflict that accepts a third parameter, the set of the
+    requirements that required the installed Distribution.
+    """
+
+    _template = VersionConflict._template + ' by {self.required_by}'
+
+    @property
+    def required_by(self):
+        return self.args[2]
+
+
+class DistributionNotFound(ResolutionError):
+    """A requested distribution was not found"""
+
+    _template = ("The '{self.req}' distribution was not found "
+                 "and is required by {self.requirers_str}")
+
+    @property
+    def req(self):
+        return self.args[0]
+
+    @property
+    def requirers(self):
+        return self.args[1]
+
+    @property
+    def requirers_str(self):
+        if not self.requirers:
+            return 'the application'
+        return ', '.join(self.requirers)
+
+    def report(self):
+        return self._template.format(**locals())
+
+    def __str__(self):
+        return self.report()
+
+
+class UnknownExtra(ResolutionError):
+    """Distribution doesn't have an "extra feature" of the given name"""
+
+
+_provider_factories = {}
+
+PY_MAJOR = sys.version[:3]
+EGG_DIST = 3
+BINARY_DIST = 2
+SOURCE_DIST = 1
+CHECKOUT_DIST = 0
+DEVELOP_DIST = -1
+
+
+def register_loader_type(loader_type, provider_factory):
+    """Register `provider_factory` to make providers for `loader_type`
+
+    `loader_type` is the type or class of a PEP 302 ``module.__loader__``,
+    and `provider_factory` is a function that, passed a *module* object,
+    returns an ``IResourceProvider`` for that module.
+    """
+    _provider_factories[loader_type] = provider_factory
+
+
+def get_provider(moduleOrReq):
+    """Return an IResourceProvider for the named module or requirement"""
+    if isinstance(moduleOrReq, Requirement):
+        return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
+    try:
+        module = sys.modules[moduleOrReq]
+    except KeyError:
+        __import__(moduleOrReq)
+        module = sys.modules[moduleOrReq]
+    loader = getattr(module, '__loader__', None)
+    return _find_adapter(_provider_factories, loader)(module)
+
+
+def _macosx_vers(_cache=[]):
+    if not _cache:
+        version = platform.mac_ver()[0]
+        # fallback for MacPorts
+        if version == '':
+            plist = '/System/Library/CoreServices/SystemVersion.plist'
+            if os.path.exists(plist):
+                if hasattr(plistlib, 'readPlist'):
+                    plist_content = plistlib.readPlist(plist)
+                    if 'ProductVersion' in plist_content:
+                        version = plist_content['ProductVersion']
+
+        _cache.append(version.split('.'))
+    return _cache[0]
+
+
+def _macosx_arch(machine):
+    return {'PowerPC': 'ppc', 'Power_Macintosh': 'ppc'}.get(machine, machine)
+
+
+def get_build_platform():
+    """Return this platform's string for platform-specific distributions
+
+    XXX Currently this is the same as ``distutils.util.get_platform()``, but it
+    needs some hacks for Linux and Mac OS X.
+    """
+    try:
+        # Python 2.7 or >=3.2
+        from sysconfig import get_platform
+    except ImportError:
+        from distutils.util import get_platform
+
+    plat = get_platform()
+    if sys.platform == "darwin" and not plat.startswith('macosx-'):
+        try:
+            version = _macosx_vers()
+            machine = os.uname()[4].replace(" ", "_")
+            return "macosx-%d.%d-%s" % (
+                int(version[0]), int(version[1]),
+                _macosx_arch(machine),
+            )
+        except ValueError:
+            # if someone is running a non-Mac darwin system, this will fall
+            # through to the default implementation
+            pass
+    return plat
+
+
+macosVersionString = re.compile(r"macosx-(\d+)\.(\d+)-(.*)")
+darwinVersionString = re.compile(r"darwin-(\d+)\.(\d+)\.(\d+)-(.*)")
+# XXX backward compat
+get_platform = get_build_platform
+
+
+def compatible_platforms(provided, required):
+    """Can code for the `provided` platform run on the `required` platform?
+
+    Returns true if either platform is ``None``, or the platforms are equal.
+
+    XXX Needs compatibility checks for Linux and other unixy OSes.
+    """
+    if provided is None or required is None or provided == required:
+        # easy case
+        return True
+
+    # Mac OS X special cases
+    reqMac = macosVersionString.match(required)
+    if reqMac:
+        provMac = macosVersionString.match(provided)
+
+        # is this a Mac package?
+        if not provMac:
+            # this is backwards compatibility for packages built before
+            # setuptools 0.6. All packages built after this point will
+            # use the new macosx designation.
+            provDarwin = darwinVersionString.match(provided)
+            if provDarwin:
+                dversion = int(provDarwin.group(1))
+                macosversion = "%s.%s" % (reqMac.group(1), reqMac.group(2))
+                if dversion == 7 and macosversion >= "10.3" or \
+                        dversion == 8 and macosversion >= "10.4":
+                    return True
+            # egg isn't macosx or legacy darwin
+            return False
+
+        # are they the same major version and machine type?
+        if provMac.group(1) != reqMac.group(1) or \
+                provMac.group(3) != reqMac.group(3):
+            return False
+
+        # is the required OS major update >= the provided one?
+        if int(provMac.group(2)) > int(reqMac.group(2)):
+            return False
+
+        return True
+
+    # XXX Linux and other platforms' special cases should go here
+    return False
+
+
+def run_script(dist_spec, script_name):
+    """Locate distribution `dist_spec` and run its `script_name` script"""
+    ns = sys._getframe(1).f_globals
+    name = ns['__name__']
+    ns.clear()
+    ns['__name__'] = name
+    require(dist_spec)[0].run_script(script_name, ns)
+
+
+# backward compatibility
+run_main = run_script
+
+
+def get_distribution(dist):
+    """Return a current distribution object for a Requirement or string"""
+    if isinstance(dist, six.string_types):
+        dist = Requirement.parse(dist)
+    if isinstance(dist, Requirement):
+        dist = get_provider(dist)
+    if not isinstance(dist, Distribution):
+        raise TypeError("Expected string, Requirement, or Distribution", dist)
+    return dist
+
+
+def load_entry_point(dist, group, name):
+    """Return `name` entry point of `group` for `dist` or raise ImportError"""
+    return get_distribution(dist).load_entry_point(group, name)
+
+
+def get_entry_map(dist, group=None):
+    """Return the entry point map for `group`, or the full entry map"""
+    return get_distribution(dist).get_entry_map(group)
+
+
+def get_entry_info(dist, group, name):
+    """Return the EntryPoint object for `group`+`name`, or ``None``"""
+    return get_distribution(dist).get_entry_info(group, name)
+
+
+class IMetadataProvider:
+    def has_metadata(name):
+        """Does the package's distribution contain the named metadata?"""
+
+    def get_metadata(name):
+        """The named metadata resource as a string"""
+
+    def get_metadata_lines(name):
+        """Yield named metadata resource as list of non-blank non-comment lines
+
+       Leading and trailing whitespace is stripped from each line, and lines
+       with ``#`` as the first non-blank character are omitted."""
+
+    def metadata_isdir(name):
+        """Is the named metadata a directory?  (like ``os.path.isdir()``)"""
+
+    def metadata_listdir(name):
+        """List of metadata names in the directory (like ``os.listdir()``)"""
+
+    def run_script(script_name, namespace):
+        """Execute the named script in the supplied namespace dictionary"""
+
+
+class IResourceProvider(IMetadataProvider):
+    """An object that provides access to package resources"""
+
+    def get_resource_filename(manager, resource_name):
+        """Return a true filesystem path for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_stream(manager, resource_name):
+        """Return a readable file-like object for `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def get_resource_string(manager, resource_name):
+        """Return a string containing the contents of `resource_name`
+
+        `manager` must be an ``IResourceManager``"""
+
+    def has_resource(resource_name):
+        """Does the package contain the named resource?"""
+
+    def resource_isdir(resource_name):
+        """Is the named resource a directory?  (like ``os.path.isdir()``)"""
+
+    def resource_listdir(resource_name):
+        """List of resource names in the directory (like ``os.listdir()``)"""
+
+
+class WorkingSet(object):
+    """A collection of active distributions on sys.path (or a similar list)"""
+
+    def __init__(self, entries=None):
+        """Create working set from list of path entries (default=sys.path)"""
+        self.entries = []
+        self.entry_keys = {}
+        self.by_key = {}
+        self.callbacks = []
+
+        if entries is None:
+            entries = sys.path
+
+        for entry in entries:
+            self.add_entry(entry)
+
+    @classmethod
+    def _build_master(cls):
+        """
+        Prepare the master working set.
+        """
+        ws = cls()
+        try:
+            from __main__ import __requires__
+        except ImportError:
+            # The main program does not list any requirements
+            return ws
+
+        # ensure the requirements are met
+        try:
+            ws.require(__requires__)
+        except VersionConflict:
+            return cls._build_from_requirements(__requires__)
+
+        return ws
+
+    @classmethod
+    def _build_from_requirements(cls, req_spec):
+        """
+        Build a working set from a requirement spec. Rewrites sys.path.
+        """
+        # try it without defaults already on sys.path
+        # by starting with an empty path
+        ws = cls([])
+        reqs = parse_requirements(req_spec)
+        dists = ws.resolve(reqs, Environment())
+        for dist in dists:
+            ws.add(dist)
+
+        # add any missing entries from sys.path
+        for entry in sys.path:
+            if entry not in ws.entries:
+                ws.add_entry(entry)
+
+        # then copy back to sys.path
+        sys.path[:] = ws.entries
+        return ws
+
+    def add_entry(self, entry):
+        """Add a path item to ``.entries``, finding any distributions on it
+
+        ``find_distributions(entry, True)`` is used to find distributions
+        corresponding to the path entry, and they are added.  `entry` is
+        always appended to ``.entries``, even if it is already present.
+        (This is because ``sys.path`` can contain the same value more than
+        once, and the ``.entries`` of the ``sys.path`` WorkingSet should always
+        equal ``sys.path``.)
+        """
+        self.entry_keys.setdefault(entry, [])
+        self.entries.append(entry)
+        for dist in find_distributions(entry, True):
+            self.add(dist, entry, False)
+
+    def __contains__(self, dist):
+        """True if `dist` is the active distribution for its project"""
+        return self.by_key.get(dist.key) == dist
+
+    def find(self, req):
+        """Find a distribution matching requirement `req`
+
+        If there is an active distribution for the requested project, this
+        returns it as long as it meets the version requirement specified by
+        `req`.  But, if there is an active distribution for the project and it
+        does *not* meet the `req` requirement, ``VersionConflict`` is raised.
+        If there is no active distribution for the requested project, ``None``
+        is returned.
+        """
+        dist = self.by_key.get(req.key)
+        if dist is not None and dist not in req:
+            # XXX add more info
+            raise VersionConflict(dist, req)
+        return dist
+
+    def iter_entry_points(self, group, name=None):
+        """Yield entry point objects from `group` matching `name`
+
+        If `name` is None, yields all entry points in `group` from all
+        distributions in the working set, otherwise only ones matching
+        both `group` and `name` are yielded (in distribution order).
+        """
+        for dist in self:
+            entries = dist.get_entry_map(group)
+            if name is None:
+                for ep in entries.values():
+                    yield ep
+            elif name in entries:
+                yield entries[name]
+
+    def run_script(self, requires, script_name):
+        """Locate distribution for `requires` and run `script_name` script"""
+        ns = sys._getframe(1).f_globals
+        name = ns['__name__']
+        ns.clear()
+        ns['__name__'] = name
+        self.require(requires)[0].run_script(script_name, ns)
+
+    def __iter__(self):
+        """Yield distributions for non-duplicate projects in the working set
+
+        The yield order is the order in which the items' path entries were
+        added to the working set.
+        """
+        seen = {}
+        for item in self.entries:
+            if item not in self.entry_keys:
+                # workaround a cache issue
+                continue
+
+            for key in self.entry_keys[item]:
+                if key not in seen:
+                    seen[key] = 1
+                    yield self.by_key[key]
+
+    def add(self, dist, entry=None, insert=True, replace=False):
+        """Add `dist` to working set, associated with `entry`
+
+        If `entry` is unspecified, it defaults to the ``.location`` of `dist`.
+        On exit from this routine, `entry` is added to the end of the working
+        set's ``.entries`` (if it wasn't already present).
+
+        `dist` is only added to the working set if it's for a project that
+        doesn't already have a distribution in the set, unless `replace=True`.
+        If it's added, any callbacks registered with the ``subscribe()`` method
+        will be called.
+        """
+        if insert:
+            dist.insert_on(self.entries, entry, replace=replace)
+
+        if entry is None:
+            entry = dist.location
+        keys = self.entry_keys.setdefault(entry, [])
+        keys2 = self.entry_keys.setdefault(dist.location, [])
+        if not replace and dist.key in self.by_key:
+            # ignore hidden distros
+            return
+
+        self.by_key[dist.key] = dist
+        if dist.key not in keys:
+            keys.append(dist.key)
+        if dist.key not in keys2:
+            keys2.append(dist.key)
+        self._added_new(dist)
+
+    def resolve(self, requirements, env=None, installer=None,
+                replace_conflicting=False, extras=None):
+        """List all distributions needed to (recursively) meet `requirements`
+
+        `requirements` must be a sequence of ``Requirement`` objects.  `env`,
+        if supplied, should be an ``Environment`` instance.  If
+        not supplied, it defaults to all distributions available within any
+        entry or distribution in the working set.  `installer`, if supplied,
+        will be invoked with each requirement that cannot be met by an
+        already-installed distribution; it should return a ``Distribution`` or
+        ``None``.
+
+        Unless `replace_conflicting=True`, raises a VersionConflict exception
+        if
+        any requirements are found on the path that have the correct name but
+        the wrong version.  Otherwise, if an `installer` is supplied it will be
+        invoked to obtain the correct version of the requirement and activate
+        it.
+
+        `extras` is a list of the extras to be used with these requirements.
+        This is important because extra requirements may look like `my_req;
+        extra = "my_extra"`, which would otherwise be interpreted as a purely
+        optional requirement.  Instead, we want to be able to assert that these
+        requirements are truly required.
+        """
+
+        # set up the stack
+        requirements = list(requirements)[::-1]
+        # set of processed requirements
+        processed = {}
+        # key -> dist
+        best = {}
+        to_activate = []
+
+        req_extras = _ReqExtras()
+
+        # Mapping of requirement to set of distributions that required it;
+        # useful for reporting info about conflicts.
+        required_by = collections.defaultdict(set)
+
+        while requirements:
+            # process dependencies breadth-first
+            req = requirements.pop(0)
+            if req in processed:
+                # Ignore cyclic or redundant dependencies
+                continue
+
+            if not req_extras.markers_pass(req, extras):
+                continue
+
+            dist = best.get(req.key)
+            if dist is None:
+                # Find the best distribution and add it to the map
+                dist = self.by_key.get(req.key)
+                if dist is None or (dist not in req and replace_conflicting):
+                    ws = self
+                    if env is None:
+                        if dist is None:
+                            env = Environment(self.entries)
+                        else:
+                            # Use an empty environment and workingset to avoid
+                            # any further conflicts with the conflicting
+                            # distribution
+                            env = Environment([])
+                            ws = WorkingSet([])
+                    dist = best[req.key] = env.best_match(
+                        req, ws, installer,
+                        replace_conflicting=replace_conflicting
+                    )
+                    if dist is None:
+                        requirers = required_by.get(req, None)
+                        raise DistributionNotFound(req, requirers)
+                to_activate.append(dist)
+            if dist not in req:
+                # Oops, the "best" so far conflicts with a dependency
+                dependent_req = required_by[req]
+                raise VersionConflict(dist, req).with_context(dependent_req)
+
+            # push the new requirements onto the stack
+            new_requirements = dist.requires(req.extras)[::-1]
+            requirements.extend(new_requirements)
+
+            # Register the new requirements needed by req
+            for new_requirement in new_requirements:
+                required_by[new_requirement].add(req.project_name)
+                req_extras[new_requirement] = req.extras
+
+            processed[req] = True
+
+        # return list of distros to activate
+        return to_activate
+
+    def find_plugins(
+            self, plugin_env, full_env=None, installer=None, fallback=True):
+        """Find all activatable distributions in `plugin_env`
+
+        Example usage::
+
+            distributions, errors = working_set.find_plugins(
+                Environment(plugin_dirlist)
+            )
+            # add plugins+libs to sys.path
+            map(working_set.add, distributions)
+            # display errors
+            print('Could not load', errors)
+
+        The `plugin_env` should be an ``Environment`` instance that contains
+        only distributions that are in the project's "plugin directory" or
+        directories. The `full_env`, if supplied, should be an ``Environment``
+        contains all currently-available distributions.  If `full_env` is not
+        supplied, one is created automatically from the ``WorkingSet`` this
+        method is called on, which will typically mean that every directory on
+        ``sys.path`` will be scanned for distributions.
+
+        `installer` is a standard installer callback as used by the
+        ``resolve()`` method. The `fallback` flag indicates whether we should
+        attempt to resolve older versions of a plugin if the newest version
+        cannot be resolved.
+
+        This method returns a 2-tuple: (`distributions`, `error_info`), where
+        `distributions` is a list of the distributions found in `plugin_env`
+        that were loadable, along with any other distributions that are needed
+        to resolve their dependencies.  `error_info` is a dictionary mapping
+        unloadable plugin distributions to an exception instance describing the
+        error that occurred. Usually this will be a ``DistributionNotFound`` or
+        ``VersionConflict`` instance.
+        """
+
+        plugin_projects = list(plugin_env)
+        # scan project names in alphabetic order
+        plugin_projects.sort()
+
+        error_info = {}
+        distributions = {}
+
+        if full_env is None:
+            env = Environment(self.entries)
+            env += plugin_env
+        else:
+            env = full_env + plugin_env
+
+        shadow_set = self.__class__([])
+        # put all our entries in shadow_set
+        list(map(shadow_set.add, self))
+
+        for project_name in plugin_projects:
+
+            for dist in plugin_env[project_name]:
+
+                req = [dist.as_requirement()]
+
+                try:
+                    resolvees = shadow_set.resolve(req, env, installer)
+
+                except ResolutionError as v:
+                    # save error info
+                    error_info[dist] = v
+                    if fallback:
+                        # try the next older version of project
+                        continue
+                    else:
+                        # give up on this project, keep going
+                        break
+
+                else:
+                    list(map(shadow_set.add, resolvees))
+                    distributions.update(dict.fromkeys(resolvees))
+
+                    # success, no need to try any more versions of this project
+                    break
+
+        distributions = list(distributions)
+        distributions.sort()
+
+        return distributions, error_info
+
+    def require(self, *requirements):
+        """Ensure that distributions matching `requirements` are activated
+
+        `requirements` must be a string or a (possibly-nested) sequence
+        thereof, specifying the distributions and versions required.  The
+        return value is a sequence of the distributions that needed to be
+        activated to fulfill the requirements; all relevant distributions are
+        included, even if they were already activated in this working set.
+        """
+        needed = self.resolve(parse_requirements(requirements))
+
+        for dist in needed:
+            self.add(dist)
+
+        return needed
+
+    def subscribe(self, callback, existing=True):
+        """Invoke `callback` for all distributions
+
+        If `existing=True` (default),
+        call on all existing ones, as well.
+        """
+        if callback in self.callbacks:
+            return
+        self.callbacks.append(callback)
+        if not existing:
+            return
+        for dist in self:
+            callback(dist)
+
+    def _added_new(self, dist):
+        for callback in self.callbacks:
+            callback(dist)
+
+    def __getstate__(self):
+        return (
+            self.entries[:], self.entry_keys.copy(), self.by_key.copy(),
+            self.callbacks[:]
+        )
+
+    def __setstate__(self, e_k_b_c):
+        entries, keys, by_key, callbacks = e_k_b_c
+        self.entries = entries[:]
+        self.entry_keys = keys.copy()
+        self.by_key = by_key.copy()
+        self.callbacks = callbacks[:]
+
+
+class _ReqExtras(dict):
+    """
+    Map each requirement to the extras that demanded it.
+    """
+
+    def markers_pass(self, req, extras=None):
+        """
+        Evaluate markers for req against each extra that
+        demanded it.
+
+        Return False if the req has a marker and fails
+        evaluation. Otherwise, return True.
+        """
+        extra_evals = (
+            req.marker.evaluate({'extra': extra})
+            for extra in self.get(req, ()) + (extras or (None,))
+        )
+        return not req.marker or any(extra_evals)
+
+
+class Environment(object):
+    """Searchable snapshot of distributions on a search path"""
+
+    def __init__(
+            self, search_path=None, platform=get_supported_platform(),
+            python=PY_MAJOR):
+        """Snapshot distributions available on a search path
+
+        Any distributions found on `search_path` are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.
+
+        `platform` is an optional string specifying the name of the platform
+        that platform-specific distributions must be compatible with.  If
+        unspecified, it defaults to the current platform.  `python` is an
+        optional string naming the desired version of Python (e.g. ``'3.3'``);
+        it defaults to the current version.
+
+        You may explicitly set `platform` (and/or `python`) to ``None`` if you
+        wish to map *all* distributions, not just those compatible with the
+        running platform or Python version.
+        """
+        self._distmap = {}
+        self.platform = platform
+        self.python = python
+        self.scan(search_path)
+
+    def can_add(self, dist):
+        """Is distribution `dist` acceptable for this environment?
+
+        The distribution must match the platform and python version
+        requirements specified when this environment was created, or False
+        is returned.
+        """
+        return (self.python is None or dist.py_version is None
+            or dist.py_version == self.python) \
+            and compatible_platforms(dist.platform, self.platform)
+
+    def remove(self, dist):
+        """Remove `dist` from the environment"""
+        self._distmap[dist.key].remove(dist)
+
+    def scan(self, search_path=None):
+        """Scan `search_path` for distributions usable in this environment
+
+        Any distributions found are added to the environment.
+        `search_path` should be a sequence of ``sys.path`` items.  If not
+        supplied, ``sys.path`` is used.  Only distributions conforming to
+        the platform/python version defined at initialization are added.
+        """
+        if search_path is None:
+            search_path = sys.path
+
+        for item in search_path:
+            for dist in find_distributions(item):
+                self.add(dist)
+
+    def __getitem__(self, project_name):
+        """Return a newest-to-oldest list of distributions for `project_name`
+
+        Uses case-insensitive `project_name` comparison, assuming all the
+        project's distributions use their project's name converted to all
+        lowercase as their key.
+
+        """
+        distribution_key = project_name.lower()
+        return self._distmap.get(distribution_key, [])
+
+    def add(self, dist):
+        """Add `dist` if we ``can_add()`` it and it has not already been added
+        """
+        if self.can_add(dist) and dist.has_version():
+            dists = self._distmap.setdefault(dist.key, [])
+            if dist not in dists:
+                dists.append(dist)
+                dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
+
+    def best_match(
+            self, req, working_set, installer=None, replace_conflicting=False):
+        """Find distribution best matching `req` and usable on `working_set`
+
+        This calls the ``find(req)`` method of the `working_set` to see if a
+        suitable distribution is already active.  (This may raise
+        ``VersionConflict`` if an unsuitable version of the project is already
+        active in the specified `working_set`.)  If a suitable distribution
+        isn't active, this method returns the newest distribution in the
+        environment that meets the ``Requirement`` in `req`.  If no suitable
+        distribution is found, and `installer` is supplied, then the result of
+        calling the environment's ``obtain(req, installer)`` method will be
+        returned.
+        """
+        try:
+            dist = working_set.find(req)
+        except VersionConflict:
+            if not replace_conflicting:
+                raise
+            dist = None
+        if dist is not None:
+            return dist
+        for dist in self[req.key]:
+            if dist in req:
+                return dist
+        # try to download/install
+        return self.obtain(req, installer)
+
+    def obtain(self, requirement, installer=None):
+        """Obtain a distribution matching `requirement` (e.g. via download)
+
+        Obtain a distro that matches requirement (e.g. via download).  In the
+        base ``Environment`` class, this routine just returns
+        ``installer(requirement)``, unless `installer` is None, in which case
+        None is returned instead.  This method is a hook that allows subclasses
+        to attempt other ways of obtaining a distribution before falling back
+        to the `installer` argument."""
+        if installer is not None:
+            return installer(requirement)
+
+    def __iter__(self):
+        """Yield the unique project names of the available distributions"""
+        for key in self._distmap.keys():
+            if self[key]:
+                yield key
+
+    def __iadd__(self, other):
+        """In-place addition of a distribution or environment"""
+        if isinstance(other, Distribution):
+            self.add(other)
+        elif isinstance(other, Environment):
+            for project in other:
+                for dist in other[project]:
+                    self.add(dist)
+        else:
+            raise TypeError("Can't add %r to environment" % (other,))
+        return self
+
+    def __add__(self, other):
+        """Add an environment or distribution to an environment"""
+        new = self.__class__([], platform=None, python=None)
+        for env in self, other:
+            new += env
+        return new
+
+
+# XXX backward compatibility
+AvailableDistributions = Environment
+
+
+class ExtractionError(RuntimeError):
+    """An error occurred extracting a resource
+
+    The following attributes are available from instances of this exception:
+
+    manager
+        The resource manager that raised this exception
+
+    cache_path
+        The base directory for resource extraction
+
+    original_error
+        The exception instance that caused extraction to fail
+    """
+
+
+class ResourceManager:
+    """Manage resource extraction and packages"""
+    extraction_path = None
+
+    def __init__(self):
+        self.cached_files = {}
+
+    def resource_exists(self, package_or_requirement, resource_name):
+        """Does the named resource exist?"""
+        return get_provider(package_or_requirement).has_resource(resource_name)
+
+    def resource_isdir(self, package_or_requirement, resource_name):
+        """Is the named resource an existing directory?"""
+        return get_provider(package_or_requirement).resource_isdir(
+            resource_name
+        )
+
+    def resource_filename(self, package_or_requirement, resource_name):
+        """Return a true filesystem path for specified resource"""
+        return get_provider(package_or_requirement).get_resource_filename(
+            self, resource_name
+        )
+
+    def resource_stream(self, package_or_requirement, resource_name):
+        """Return a readable file-like object for specified resource"""
+        return get_provider(package_or_requirement).get_resource_stream(
+            self, resource_name
+        )
+
+    def resource_string(self, package_or_requirement, resource_name):
+        """Return specified resource as a string"""
+        return get_provider(package_or_requirement).get_resource_string(
+            self, resource_name
+        )
+
+    def resource_listdir(self, package_or_requirement, resource_name):
+        """List the contents of the named resource directory"""
+        return get_provider(package_or_requirement).resource_listdir(
+            resource_name
+        )
+
+    def extraction_error(self):
+        """Give an error message for problems extracting file(s)"""
+
+        old_exc = sys.exc_info()[1]
+        cache_path = self.extraction_path or get_default_cache()
+
+        tmpl = textwrap.dedent("""
+            Can't extract file(s) to egg cache
+
+            The following error occurred while trying to extract file(s)
+            to the Python egg cache:
+
+              {old_exc}
+
+            The Python egg cache directory is currently set to:
+
+              {cache_path}
+
+            Perhaps your account does not have write access to this directory?
+            You can change the cache directory by setting the PYTHON_EGG_CACHE
+            environment variable to point to an accessible directory.
+            """).lstrip()
+        err = ExtractionError(tmpl.format(**locals()))
+        err.manager = self
+        err.cache_path = cache_path
+        err.original_error = old_exc
+        raise err
+
+    def get_cache_path(self, archive_name, names=()):
+        """Return absolute location in cache for `archive_name` and `names`
+
+        The parent directory of the resulting path will be created if it does
+        not already exist.  `archive_name` should be the base filename of the
+        enclosing egg (which may not be the name of the enclosing zipfile!),
+        including its ".egg" extension.  `names`, if provided, should be a
+        sequence of path name parts "under" the egg's extraction location.
+
+        This method should only be called by resource providers that need to
+        obtain an extraction location, and only for names they intend to
+        extract, as it tracks the generated names for possible cleanup later.
+        """
+        extract_path = self.extraction_path or get_default_cache()
+        target_path = os.path.join(extract_path, archive_name + '-tmp', *names)
+        try:
+            _bypass_ensure_directory(target_path)
+        except:
+            self.extraction_error()
+
+        self._warn_unsafe_extraction_path(extract_path)
+
+        self.cached_files[target_path] = 1
+        return target_path
+
+    @staticmethod
+    def _warn_unsafe_extraction_path(path):
+        """
+        If the default extraction path is overridden and set to an insecure
+        location, such as /tmp, it opens up an opportunity for an attacker to
+        replace an extracted file with an unauthorized payload. Warn the user
+        if a known insecure location is used.
+
+        See Distribute #375 for more details.
+        """
+        if os.name == 'nt' and not path.startswith(os.environ['windir']):
+            # On Windows, permissions are generally restrictive by default
+            #  and temp directories are not writable by other users, so
+            #  bypass the warning.
+            return
+        mode = os.stat(path).st_mode
+        if mode & stat.S_IWOTH or mode & stat.S_IWGRP:
+            msg = (
+                "%s is writable by group/others and vulnerable to attack "
+                "when "
+                "used with get_resource_filename. Consider a more secure "
+                "location (set with .set_extraction_path or the "
+                "PYTHON_EGG_CACHE environment variable)." % path
+            )
+            warnings.warn(msg, UserWarning)
+
+    def postprocess(self, tempname, filename):
+        """Perform any platform-specific postprocessing of `tempname`
+
+        This is where Mac header rewrites should be done; other platforms don't
+        have anything special they should do.
+
+        Resource providers should call this method ONLY after successfully
+        extracting a compressed resource.  They must NOT call it on resources
+        that are already in the filesystem.
+
+        `tempname` is the current (temporary) name of the file, and `filename`
+        is the name it will be renamed to by the caller after this routine
+        returns.
+        """
+
+        if os.name == 'posix':
+            # Make the resource executable
+            mode = ((os.stat(tempname).st_mode) | 0o555) & 0o7777
+            os.chmod(tempname, mode)
+
+    def set_extraction_path(self, path):
+        """Set the base path where resources will be extracted to, if needed.
+
+        If you do not call this routine before any extractions take place, the
+        path defaults to the return value of ``get_default_cache()``.  (Which
+        is based on the ``PYTHON_EGG_CACHE`` environment variable, with various
+        platform-specific fallbacks.  See that routine's documentation for more
+        details.)
+
+        Resources are extracted to subdirectories of this path based upon
+        information given by the ``IResourceProvider``.  You may set this to a
+        temporary directory, but then you must call ``cleanup_resources()`` to
+        delete the extracted files when done.  There is no guarantee that
+        ``cleanup_resources()`` will be able to remove all extracted files.
+
+        (Note: you may not change the extraction path for a given resource
+        manager once resources have been extracted, unless you first call
+        ``cleanup_resources()``.)
+        """
+        if self.cached_files:
+            raise ValueError(
+                "Can't change extraction path, files already extracted"
+            )
+
+        self.extraction_path = path
+
+    def cleanup_resources(self, force=False):
+        """
+        Delete all extracted resource files and directories, returning a list
+        of the file and directory names that could not be successfully removed.
+        This function does not have any concurrency protection, so it should
+        generally only be called when the extraction path is a temporary
+        directory exclusive to a single process.  This method is not
+        automatically called; you must call it explicitly or register it as an
+        ``atexit`` function if you wish to ensure cleanup of a temporary
+        directory used for extractions.
+        """
+        # XXX
+
+
+def get_default_cache():
+    """
+    Return the ``PYTHON_EGG_CACHE`` environment variable
+    or a platform-relevant user cache dir for an app
+    named "Python-Eggs".
+    """
+    return (
+        os.environ.get('PYTHON_EGG_CACHE')
+        or appdirs.user_cache_dir(appname='Python-Eggs')
+    )
+
+
+def safe_name(name):
+    """Convert an arbitrary string to a standard distribution name
+
+    Any runs of non-alphanumeric/. characters are replaced with a single '-'.
+    """
+    return re.sub('[^A-Za-z0-9.]+', '-', name)
+
+
+def safe_version(version):
+    """
+    Convert an arbitrary string to a standard version string
+    """
+    try:
+        # normalize the version
+        return str(packaging.version.Version(version))
+    except packaging.version.InvalidVersion:
+        version = version.replace(' ', '.')
+        return re.sub('[^A-Za-z0-9.]+', '-', version)
+
+
+def safe_extra(extra):
+    """Convert an arbitrary string to a standard 'extra' name
+
+    Any runs of non-alphanumeric characters are replaced with a single '_',
+    and the result is always lowercased.
+    """
+    return re.sub('[^A-Za-z0-9.-]+', '_', extra).lower()
+
+
+def to_filename(name):
+    """Convert a project or version name to its filename-escaped form
+
+    Any '-' characters are currently replaced with '_'.
+    """
+    return name.replace('-', '_')
+
+
+def invalid_marker(text):
+    """
+    Validate text as a PEP 508 environment marker; return an exception
+    if invalid or False otherwise.
+    """
+    try:
+        evaluate_marker(text)
+    except SyntaxError as e:
+        e.filename = None
+        e.lineno = None
+        return e
+    return False
+
+
+def evaluate_marker(text, extra=None):
+    """
+    Evaluate a PEP 508 environment marker.
+    Return a boolean indicating the marker result in this environment.
+    Raise SyntaxError if marker is invalid.
+
+    This implementation uses the 'pyparsing' module.
+    """
+    try:
+        marker = packaging.markers.Marker(text)
+        return marker.evaluate()
+    except packaging.markers.InvalidMarker as e:
+        raise SyntaxError(e)
+
+
+class NullProvider:
+    """Try to implement resources and metadata for arbitrary PEP 302 loaders"""
+
+    egg_name = None
+    egg_info = None
+    loader = None
+
+    def __init__(self, module):
+        self.loader = getattr(module, '__loader__', None)
+        self.module_path = os.path.dirname(getattr(module, '__file__', ''))
+
+    def get_resource_filename(self, manager, resource_name):
+        return self._fn(self.module_path, resource_name)
+
+    def get_resource_stream(self, manager, resource_name):
+        return io.BytesIO(self.get_resource_string(manager, resource_name))
+
+    def get_resource_string(self, manager, resource_name):
+        return self._get(self._fn(self.module_path, resource_name))
+
+    def has_resource(self, resource_name):
+        return self._has(self._fn(self.module_path, resource_name))
+
+    def has_metadata(self, name):
+        return self.egg_info and self._has(self._fn(self.egg_info, name))
+
+    def get_metadata(self, name):
+        if not self.egg_info:
+            return ""
+        value = self._get(self._fn(self.egg_info, name))
+        return value.decode('utf-8') if six.PY3 else value
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+    def resource_isdir(self, resource_name):
+        return self._isdir(self._fn(self.module_path, resource_name))
+
+    def metadata_isdir(self, name):
+        return self.egg_info and self._isdir(self._fn(self.egg_info, name))
+
+    def resource_listdir(self, resource_name):
+        return self._listdir(self._fn(self.module_path, resource_name))
+
+    def metadata_listdir(self, name):
+        if self.egg_info:
+            return self._listdir(self._fn(self.egg_info, name))
+        return []
+
+    def run_script(self, script_name, namespace):
+        script = 'scripts/' + script_name
+        if not self.has_metadata(script):
+            raise ResolutionError(
+                "Script {script!r} not found in metadata at {self.egg_info!r}"
+                .format(**locals()),
+            )
+        script_text = self.get_metadata(script).replace('\r\n', '\n')
+        script_text = script_text.replace('\r', '\n')
+        script_filename = self._fn(self.egg_info, script)
+        namespace['__file__'] = script_filename
+        if os.path.exists(script_filename):
+            source = open(script_filename).read()
+            code = compile(source, script_filename, 'exec')
+            exec(code, namespace, namespace)
+        else:
+            from linecache import cache
+            cache[script_filename] = (
+                len(script_text), 0, script_text.split('\n'), script_filename
+            )
+            script_code = compile(script_text, script_filename, 'exec')
+            exec(script_code, namespace, namespace)
+
+    def _has(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _isdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _listdir(self, path):
+        raise NotImplementedError(
+            "Can't perform this operation for unregistered loader type"
+        )
+
+    def _fn(self, base, resource_name):
+        if resource_name:
+            return os.path.join(base, *resource_name.split('/'))
+        return base
+
+    def _get(self, path):
+        if hasattr(self.loader, 'get_data'):
+            return self.loader.get_data(path)
+        raise NotImplementedError(
+            "Can't perform this operation for loaders without 'get_data()'"
+        )
+
+
+register_loader_type(object, NullProvider)
+
+
+class EggProvider(NullProvider):
+    """Provider based on a virtual filesystem"""
+
+    def __init__(self, module):
+        NullProvider.__init__(self, module)
+        self._setup_prefix()
+
+    def _setup_prefix(self):
+        # we assume here that our metadata may be nested inside a "basket"
+        # of multiple eggs; that's why we use module_path instead of .archive
+        path = self.module_path
+        old = None
+        while path != old:
+            if _is_egg_path(path):
+                self.egg_name = os.path.basename(path)
+                self.egg_info = os.path.join(path, 'EGG-INFO')
+                self.egg_root = path
+                break
+            old = path
+            path, base = os.path.split(path)
+
+
+class DefaultProvider(EggProvider):
+    """Provides access to package resources in the filesystem"""
+
+    def _has(self, path):
+        return os.path.exists(path)
+
+    def _isdir(self, path):
+        return os.path.isdir(path)
+
+    def _listdir(self, path):
+        return os.listdir(path)
+
+    def get_resource_stream(self, manager, resource_name):
+        return open(self._fn(self.module_path, resource_name), 'rb')
+
+    def _get(self, path):
+        with open(path, 'rb') as stream:
+            return stream.read()
+
+    @classmethod
+    def _register(cls):
+        loader_cls = getattr(
+            importlib_machinery,
+            'SourceFileLoader',
+            type(None),
+        )
+        register_loader_type(loader_cls, cls)
+
+
+DefaultProvider._register()
+
+
+class EmptyProvider(NullProvider):
+    """Provider that returns nothing for all requests"""
+
+    _isdir = _has = lambda self, path: False
+    _get = lambda self, path: ''
+    _listdir = lambda self, path: []
+    module_path = None
+
+    def __init__(self):
+        pass
+
+
+empty_provider = EmptyProvider()
+
+
+class ZipManifests(dict):
+    """
+    zip manifest builder
+    """
+
+    @classmethod
+    def build(cls, path):
+        """
+        Build a dictionary similar to the zipimport directory
+        caches, except instead of tuples, store ZipInfo objects.
+
+        Use a platform-specific path separator (os.sep) for the path keys
+        for compatibility with pypy on Windows.
+        """
+        with zipfile.ZipFile(path) as zfile:
+            items = (
+                (
+                    name.replace('/', os.sep),
+                    zfile.getinfo(name),
+                )
+                for name in zfile.namelist()
+            )
+            return dict(items)
+
+    load = build
+
+
+class MemoizedZipManifests(ZipManifests):
+    """
+    Memoized zipfile manifests.
+    """
+    manifest_mod = collections.namedtuple('manifest_mod', 'manifest mtime')
+
+    def load(self, path):
+        """
+        Load a manifest at path or return a suitable manifest already loaded.
+        """
+        path = os.path.normpath(path)
+        mtime = os.stat(path).st_mtime
+
+        if path not in self or self[path].mtime != mtime:
+            manifest = self.build(path)
+            self[path] = self.manifest_mod(manifest, mtime)
+
+        return self[path].manifest
+
+
+class ZipProvider(EggProvider):
+    """Resource support for zips and eggs"""
+
+    eagers = None
+    _zip_manifests = MemoizedZipManifests()
+
+    def __init__(self, module):
+        EggProvider.__init__(self, module)
+        self.zip_pre = self.loader.archive + os.sep
+
+    def _zipinfo_name(self, fspath):
+        # Convert a virtual filename (full path to file) into a zipfile subpath
+        # usable with the zipimport directory cache for our target archive
+        if fspath.startswith(self.zip_pre):
+            return fspath[len(self.zip_pre):]
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.zip_pre)
+        )
+
+    def _parts(self, zip_path):
+        # Convert a zipfile subpath into an egg-relative path part list.
+        # pseudo-fs path
+        fspath = self.zip_pre + zip_path
+        if fspath.startswith(self.egg_root + os.sep):
+            return fspath[len(self.egg_root) + 1:].split(os.sep)
+        raise AssertionError(
+            "%s is not a subpath of %s" % (fspath, self.egg_root)
+        )
+
+    @property
+    def zipinfo(self):
+        return self._zip_manifests.load(self.loader.archive)
+
+    def get_resource_filename(self, manager, resource_name):
+        if not self.egg_name:
+            raise NotImplementedError(
+                "resource_filename() only supported for .egg, not .zip"
+            )
+        # no need to lock for extraction, since we use temp names
+        zip_path = self._resource_to_zip(resource_name)
+        eagers = self._get_eager_resources()
+        if '/'.join(self._parts(zip_path)) in eagers:
+            for name in eagers:
+                self._extract_resource(manager, self._eager_to_zip(name))
+        return self._extract_resource(manager, zip_path)
+
+    @staticmethod
+    def _get_date_and_size(zip_stat):
+        size = zip_stat.file_size
+        # ymdhms+wday, yday, dst
+        date_time = zip_stat.date_time + (0, 0, -1)
+        # 1980 offset already done
+        timestamp = time.mktime(date_time)
+        return timestamp, size
+
+    def _extract_resource(self, manager, zip_path):
+
+        if zip_path in self._index():
+            for name in self._index()[zip_path]:
+                last = self._extract_resource(
+                    manager, os.path.join(zip_path, name)
+                )
+            # return the extracted directory name
+            return os.path.dirname(last)
+
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+
+        if not WRITE_SUPPORT:
+            raise IOError('"os.rename" and "os.unlink" are not supported '
+                          'on this platform')
+        try:
+
+            real_path = manager.get_cache_path(
+                self.egg_name, self._parts(zip_path)
+            )
+
+            if self._is_current(real_path, zip_path):
+                return real_path
+
+            outf, tmpnam = _mkstemp(
+                ".$extract",
+                dir=os.path.dirname(real_path),
+            )
+            os.write(outf, self.loader.get_data(zip_path))
+            os.close(outf)
+            utime(tmpnam, (timestamp, timestamp))
+            manager.postprocess(tmpnam, real_path)
+
+            try:
+                rename(tmpnam, real_path)
+
+            except os.error:
+                if os.path.isfile(real_path):
+                    if self._is_current(real_path, zip_path):
+                        # the file became current since it was checked above,
+                        #  so proceed.
+                        return real_path
+                    # Windows, del old file and retry
+                    elif os.name == 'nt':
+                        unlink(real_path)
+                        rename(tmpnam, real_path)
+                        return real_path
+                raise
+
+        except os.error:
+            # report a user-friendly error
+            manager.extraction_error()
+
+        return real_path
+
+    def _is_current(self, file_path, zip_path):
+        """
+        Return True if the file_path is current for this zip_path
+        """
+        timestamp, size = self._get_date_and_size(self.zipinfo[zip_path])
+        if not os.path.isfile(file_path):
+            return False
+        stat = os.stat(file_path)
+        if stat.st_size != size or stat.st_mtime != timestamp:
+            return False
+        # check that the contents match
+        zip_contents = self.loader.get_data(zip_path)
+        with open(file_path, 'rb') as f:
+            file_contents = f.read()
+        return zip_contents == file_contents
+
+    def _get_eager_resources(self):
+        if self.eagers is None:
+            eagers = []
+            for name in ('native_libs.txt', 'eager_resources.txt'):
+                if self.has_metadata(name):
+                    eagers.extend(self.get_metadata_lines(name))
+            self.eagers = eagers
+        return self.eagers
+
+    def _index(self):
+        try:
+            return self._dirindex
+        except AttributeError:
+            ind = {}
+            for path in self.zipinfo:
+                parts = path.split(os.sep)
+                while parts:
+                    parent = os.sep.join(parts[:-1])
+                    if parent in ind:
+                        ind[parent].append(parts[-1])
+                        break
+                    else:
+                        ind[parent] = [parts.pop()]
+            self._dirindex = ind
+            return ind
+
+    def _has(self, fspath):
+        zip_path = self._zipinfo_name(fspath)
+        return zip_path in self.zipinfo or zip_path in self._index()
+
+    def _isdir(self, fspath):
+        return self._zipinfo_name(fspath) in self._index()
+
+    def _listdir(self, fspath):
+        return list(self._index().get(self._zipinfo_name(fspath), ()))
+
+    def _eager_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.egg_root, resource_name))
+
+    def _resource_to_zip(self, resource_name):
+        return self._zipinfo_name(self._fn(self.module_path, resource_name))
+
+
+register_loader_type(zipimport.zipimporter, ZipProvider)
+
+
+class FileMetadata(EmptyProvider):
+    """Metadata handler for standalone PKG-INFO files
+
+    Usage::
+
+        metadata = FileMetadata("/path/to/PKG-INFO")
+
+    This provider rejects all data and metadata requests except for PKG-INFO,
+    which is treated as existing, and will be the contents of the file at
+    the provided location.
+    """
+
+    def __init__(self, path):
+        self.path = path
+
+    def has_metadata(self, name):
+        return name == 'PKG-INFO' and os.path.isfile(self.path)
+
+    def get_metadata(self, name):
+        if name != 'PKG-INFO':
+            raise KeyError("No metadata except PKG-INFO is available")
+
+        with io.open(self.path, encoding='utf-8', errors="replace") as f:
+            metadata = f.read()
+        self._warn_on_replacement(metadata)
+        return metadata
+
+    def _warn_on_replacement(self, metadata):
+        # Python 2.7 compat for: replacement_char = '�'
+        replacement_char = b'\xef\xbf\xbd'.decode('utf-8')
+        if replacement_char in metadata:
+            tmpl = "{self.path} could not be properly decoded in UTF-8"
+            msg = tmpl.format(**locals())
+            warnings.warn(msg)
+
+    def get_metadata_lines(self, name):
+        return yield_lines(self.get_metadata(name))
+
+
+class PathMetadata(DefaultProvider):
+    """Metadata provider for egg directories
+
+    Usage::
+
+        # Development eggs:
+
+        egg_info = "/path/to/PackageName.egg-info"
+        base_dir = os.path.dirname(egg_info)
+        metadata = PathMetadata(base_dir, egg_info)
+        dist_name = os.path.splitext(os.path.basename(egg_info))[0]
+        dist = Distribution(basedir, project_name=dist_name, metadata=metadata)
+
+        # Unpacked egg directories:
+
+        egg_path = "/path/to/PackageName-ver-pyver-etc.egg"
+        metadata = PathMetadata(egg_path, os.path.join(egg_path,'EGG-INFO'))
+        dist = Distribution.from_filename(egg_path, metadata=metadata)
+    """
+
+    def __init__(self, path, egg_info):
+        self.module_path = path
+        self.egg_info = egg_info
+
+
+class EggMetadata(ZipProvider):
+    """Metadata provider for .egg files"""
+
+    def __init__(self, importer):
+        """Create a metadata provider from a zipimporter"""
+
+        self.zip_pre = importer.archive + os.sep
+        self.loader = importer
+        if importer.prefix:
+            self.module_path = os.path.join(importer.archive, importer.prefix)
+        else:
+            self.module_path = importer.archive
+        self._setup_prefix()
+
+
+_declare_state('dict', _distribution_finders={})
+
+
+def register_finder(importer_type, distribution_finder):
+    """Register `distribution_finder` to find distributions in sys.path items
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `distribution_finder` is a callable that, passed a path
+    item and the importer instance, yields ``Distribution`` instances found on
+    that path item.  See ``pkg_resources.find_on_path`` for an example."""
+    _distribution_finders[importer_type] = distribution_finder
+
+
+def find_distributions(path_item, only=False):
+    """Yield distributions accessible via `path_item`"""
+    importer = get_importer(path_item)
+    finder = _find_adapter(_distribution_finders, importer)
+    return finder(importer, path_item, only)
+
+
+def find_eggs_in_zip(importer, path_item, only=False):
+    """
+    Find eggs in zip files; possibly multiple nested eggs.
+    """
+    if importer.archive.endswith('.whl'):
+        # wheels are not supported with this finder
+        # they don't have PKG-INFO metadata, and won't ever contain eggs
+        return
+    metadata = EggMetadata(importer)
+    if metadata.has_metadata('PKG-INFO'):
+        yield Distribution.from_filename(path_item, metadata=metadata)
+    if only:
+        # don't yield nested distros
+        return
+    for subitem in metadata.resource_listdir('/'):
+        if _is_egg_path(subitem):
+            subpath = os.path.join(path_item, subitem)
+            dists = find_eggs_in_zip(zipimport.zipimporter(subpath), subpath)
+            for dist in dists:
+                yield dist
+        elif subitem.lower().endswith('.dist-info'):
+            subpath = os.path.join(path_item, subitem)
+            submeta = EggMetadata(zipimport.zipimporter(subpath))
+            submeta.egg_info = subpath
+            yield Distribution.from_location(path_item, subitem, submeta)
+
+
+register_finder(zipimport.zipimporter, find_eggs_in_zip)
+
+
+def find_nothing(importer, path_item, only=False):
+    return ()
+
+
+register_finder(object, find_nothing)
+
+
+def _by_version_descending(names):
+    """
+    Given a list of filenames, return them in descending order
+    by version number.
+
+    >>> names = 'bar', 'foo', 'Python-2.7.10.egg', 'Python-2.7.2.egg'
+    >>> _by_version_descending(names)
+    ['Python-2.7.10.egg', 'Python-2.7.2.egg', 'foo', 'bar']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.egg', 'Setuptools-1.2.3b1.egg']
+    >>> names = 'Setuptools-1.2.3b1.egg', 'Setuptools-1.2.3.post1.egg'
+    >>> _by_version_descending(names)
+    ['Setuptools-1.2.3.post1.egg', 'Setuptools-1.2.3b1.egg']
+    """
+    def _by_version(name):
+        """
+        Parse each component of the filename
+        """
+        name, ext = os.path.splitext(name)
+        parts = itertools.chain(name.split('-'), [ext])
+        return [packaging.version.parse(part) for part in parts]
+
+    return sorted(names, key=_by_version, reverse=True)
+
+
+def find_on_path(importer, path_item, only=False):
+    """Yield distributions accessible on a sys.path directory"""
+    path_item = _normalize_cached(path_item)
+
+    if _is_unpacked_egg(path_item):
+        yield Distribution.from_filename(
+            path_item, metadata=PathMetadata(
+                path_item, os.path.join(path_item, 'EGG-INFO')
+            )
+        )
+        return
+
+    entries = safe_listdir(path_item)
+
+    # for performance, before sorting by version,
+    # screen entries for only those that will yield
+    # distributions
+    filtered = (
+        entry
+        for entry in entries
+        if dist_factory(path_item, entry, only)
+    )
+
+    # scan for .egg and .egg-info in directory
+    path_item_entries = _by_version_descending(filtered)
+    for entry in path_item_entries:
+        fullpath = os.path.join(path_item, entry)
+        factory = dist_factory(path_item, entry, only)
+        for dist in factory(fullpath):
+            yield dist
+
+
+def dist_factory(path_item, entry, only):
+    """
+    Return a dist_factory for a path_item and entry
+    """
+    lower = entry.lower()
+    is_meta = any(map(lower.endswith, ('.egg-info', '.dist-info')))
+    return (
+        distributions_from_metadata
+        if is_meta else
+        find_distributions
+        if not only and _is_egg_path(entry) else
+        resolve_egg_link
+        if not only and lower.endswith('.egg-link') else
+        NoDists()
+    )
+
+
+class NoDists:
+    """
+    >>> bool(NoDists())
+    False
+
+    >>> list(NoDists()('anything'))
+    []
+    """
+    def __bool__(self):
+        return False
+    if six.PY2:
+        __nonzero__ = __bool__
+
+    def __call__(self, fullpath):
+        return iter(())
+
+
+def safe_listdir(path):
+    """
+    Attempt to list contents of path, but suppress some exceptions.
+    """
+    try:
+        return os.listdir(path)
+    except (PermissionError, NotADirectoryError):
+        pass
+    except OSError as e:
+        # Ignore the directory if does not exist, not a directory or
+        # permission denied
+        ignorable = (
+            e.errno in (errno.ENOTDIR, errno.EACCES, errno.ENOENT)
+            # Python 2 on Windows needs to be handled this way :(
+            or getattr(e, "winerror", None) == 267
+        )
+        if not ignorable:
+            raise
+    return ()
+
+
+def distributions_from_metadata(path):
+    root = os.path.dirname(path)
+    if os.path.isdir(path):
+        if len(os.listdir(path)) == 0:
+            # empty metadata dir; skip
+            return
+        metadata = PathMetadata(root, path)
+    else:
+        metadata = FileMetadata(path)
+    entry = os.path.basename(path)
+    yield Distribution.from_location(
+        root, entry, metadata, precedence=DEVELOP_DIST,
+    )
+
+
+def non_empty_lines(path):
+    """
+    Yield non-empty lines from file at path
+    """
+    with open(path) as f:
+        for line in f:
+            line = line.strip()
+            if line:
+                yield line
+
+
+def resolve_egg_link(path):
+    """
+    Given a path to an .egg-link, resolve distributions
+    present in the referenced path.
+    """
+    referenced_paths = non_empty_lines(path)
+    resolved_paths = (
+        os.path.join(os.path.dirname(path), ref)
+        for ref in referenced_paths
+    )
+    dist_groups = map(find_distributions, resolved_paths)
+    return next(dist_groups, ())
+
+
+register_finder(pkgutil.ImpImporter, find_on_path)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_finder(importlib_machinery.FileFinder, find_on_path)
+
+_declare_state('dict', _namespace_handlers={})
+_declare_state('dict', _namespace_packages={})
+
+
+def register_namespace_handler(importer_type, namespace_handler):
+    """Register `namespace_handler` to declare namespace packages
+
+    `importer_type` is the type or class of a PEP 302 "Importer" (sys.path item
+    handler), and `namespace_handler` is a callable like this::
+
+        def namespace_handler(importer, path_entry, moduleName, module):
+            # return a path_entry to use for child packages
+
+    Namespace handlers are only called if the importer object has already
+    agreed that it can handle the relevant path item, and they should only
+    return a subpath if the module __path__ does not already contain an
+    equivalent subpath.  For an example namespace handler, see
+    ``pkg_resources.file_ns_handler``.
+    """
+    _namespace_handlers[importer_type] = namespace_handler
+
+
+def _handle_ns(packageName, path_item):
+    """Ensure that named package includes a subpath of path_item (if needed)"""
+
+    importer = get_importer(path_item)
+    if importer is None:
+        return None
+    loader = importer.find_module(packageName)
+    if loader is None:
+        return None
+    module = sys.modules.get(packageName)
+    if module is None:
+        module = sys.modules[packageName] = types.ModuleType(packageName)
+        module.__path__ = []
+        _set_parent_ns(packageName)
+    elif not hasattr(module, '__path__'):
+        raise TypeError("Not a package:", packageName)
+    handler = _find_adapter(_namespace_handlers, importer)
+    subpath = handler(importer, path_item, packageName, module)
+    if subpath is not None:
+        path = module.__path__
+        path.append(subpath)
+        loader.load_module(packageName)
+        _rebuild_mod_path(path, packageName, module)
+    return subpath
+
+
+def _rebuild_mod_path(orig_path, package_name, module):
+    """
+    Rebuild module.__path__ ensuring that all entries are ordered
+    corresponding to their sys.path order
+    """
+    sys_path = [_normalize_cached(p) for p in sys.path]
+
+    def safe_sys_path_index(entry):
+        """
+        Workaround for #520 and #513.
+        """
+        try:
+            return sys_path.index(entry)
+        except ValueError:
+            return float('inf')
+
+    def position_in_sys_path(path):
+        """
+        Return the ordinal of the path based on its position in sys.path
+        """
+        path_parts = path.split(os.sep)
+        module_parts = package_name.count('.') + 1
+        parts = path_parts[:-module_parts]
+        return safe_sys_path_index(_normalize_cached(os.sep.join(parts)))
+
+    if not isinstance(orig_path, list):
+        # Is this behavior useful when module.__path__ is not a list?
+        return
+
+    orig_path.sort(key=position_in_sys_path)
+    module.__path__[:] = [_normalize_cached(p) for p in orig_path]
+
+
+def declare_namespace(packageName):
+    """Declare that package 'packageName' is a namespace package"""
+
+    _imp.acquire_lock()
+    try:
+        if packageName in _namespace_packages:
+            return
+
+        path, parent = sys.path, None
+        if '.' in packageName:
+            parent = '.'.join(packageName.split('.')[:-1])
+            declare_namespace(parent)
+            if parent not in _namespace_packages:
+                __import__(parent)
+            try:
+                path = sys.modules[parent].__path__
+            except AttributeError:
+                raise TypeError("Not a package:", parent)
+
+        # Track what packages are namespaces, so when new path items are added,
+        # they can be updated
+        _namespace_packages.setdefault(parent, []).append(packageName)
+        _namespace_packages.setdefault(packageName, [])
+
+        for path_item in path:
+            # Ensure all the parent's path items are reflected in the child,
+            # if they apply
+            _handle_ns(packageName, path_item)
+
+    finally:
+        _imp.release_lock()
+
+
+def fixup_namespace_packages(path_item, parent=None):
+    """Ensure that previously-declared namespace packages include path_item"""
+    _imp.acquire_lock()
+    try:
+        for package in _namespace_packages.get(parent, ()):
+            subpath = _handle_ns(package, path_item)
+            if subpath:
+                fixup_namespace_packages(subpath, package)
+    finally:
+        _imp.release_lock()
+
+
+def file_ns_handler(importer, path_item, packageName, module):
+    """Compute an ns-package subpath for a filesystem or zipfile importer"""
+
+    subpath = os.path.join(path_item, packageName.split('.')[-1])
+    normalized = _normalize_cached(subpath)
+    for item in module.__path__:
+        if _normalize_cached(item) == normalized:
+            break
+    else:
+        # Only return the path if it's not already there
+        return subpath
+
+
+register_namespace_handler(pkgutil.ImpImporter, file_ns_handler)
+register_namespace_handler(zipimport.zipimporter, file_ns_handler)
+
+if hasattr(importlib_machinery, 'FileFinder'):
+    register_namespace_handler(importlib_machinery.FileFinder, file_ns_handler)
+
+
+def null_ns_handler(importer, path_item, packageName, module):
+    return None
+
+
+register_namespace_handler(object, null_ns_handler)
+
+
+def normalize_path(filename):
+    """Normalize a file/dir name for comparison purposes"""
+    return os.path.normcase(os.path.realpath(filename))
+
+
+def _normalize_cached(filename, _cache={}):
+    try:
+        return _cache[filename]
+    except KeyError:
+        _cache[filename] = result = normalize_path(filename)
+        return result
+
+
+def _is_egg_path(path):
+    """
+    Determine if given path appears to be an egg.
+    """
+    return path.lower().endswith('.egg')
+
+
+def _is_unpacked_egg(path):
+    """
+    Determine if given path appears to be an unpacked egg.
+    """
+    return (
+        _is_egg_path(path) and
+        os.path.isfile(os.path.join(path, 'EGG-INFO', 'PKG-INFO'))
+    )
+
+
+def _set_parent_ns(packageName):
+    parts = packageName.split('.')
+    name = parts.pop()
+    if parts:
+        parent = '.'.join(parts)
+        setattr(sys.modules[parent], name, sys.modules[packageName])
+
+
+def yield_lines(strs):
+    """Yield non-empty/non-comment lines of a string or sequence"""
+    if isinstance(strs, six.string_types):
+        for s in strs.splitlines():
+            s = s.strip()
+            # skip blank lines/comments
+            if s and not s.startswith('#'):
+                yield s
+    else:
+        for ss in strs:
+            for s in yield_lines(ss):
+                yield s
+
+
+MODULE = re.compile(r"\w+(\.\w+)*$").match
+EGG_NAME = re.compile(
+    r"""
+    (?P<name>[^-]+) (
+        -(?P<ver>[^-]+) (
+            -py(?P<pyver>[^-]+) (
+                -(?P<plat>.+)
+            )?
+        )?
+    )?
+    """,
+    re.VERBOSE | re.IGNORECASE,
+).match
+
+
+class EntryPoint(object):
+    """Object representing an advertised importable object"""
+
+    def __init__(self, name, module_name, attrs=(), extras=(), dist=None):
+        if not MODULE(module_name):
+            raise ValueError("Invalid module name", module_name)
+        self.name = name
+        self.module_name = module_name
+        self.attrs = tuple(attrs)
+        self.extras = tuple(extras)
+        self.dist = dist
+
+    def __str__(self):
+        s = "%s = %s" % (self.name, self.module_name)
+        if self.attrs:
+            s += ':' + '.'.join(self.attrs)
+        if self.extras:
+            s += ' [%s]' % ','.join(self.extras)
+        return s
+
+    def __repr__(self):
+        return "EntryPoint.parse(%r)" % str(self)
+
+    def load(self, require=True, *args, **kwargs):
+        """
+        Require packages for this EntryPoint, then resolve it.
+        """
+        if not require or args or kwargs:
+            warnings.warn(
+                "Parameters to load are deprecated.  Call .resolve and "
+                ".require separately.",
+                DeprecationWarning,
+                stacklevel=2,
+            )
+        if require:
+            self.require(*args, **kwargs)
+        return self.resolve()
+
+    def resolve(self):
+        """
+        Resolve the entry point from its module and attrs.
+        """
+        module = __import__(self.module_name, fromlist=['__name__'], level=0)
+        try:
+            return functools.reduce(getattr, self.attrs, module)
+        except AttributeError as exc:
+            raise ImportError(str(exc))
+
+    def require(self, env=None, installer=None):
+        if self.extras and not self.dist:
+            raise UnknownExtra("Can't require() without a distribution", self)
+
+        # Get the requirements for this entry point with all its extras and
+        # then resolve them. We have to pass `extras` along when resolving so
+        # that the working set knows what extras we want. Otherwise, for
+        # dist-info distributions, the working set will assume that the
+        # requirements for that extra are purely optional and skip over them.
+        reqs = self.dist.requires(self.extras)
+        items = working_set.resolve(reqs, env, installer, extras=self.extras)
+        list(map(working_set.add, items))
+
+    pattern = re.compile(
+        r'\s*'
+        r'(?P<name>.+?)\s*'
+        r'=\s*'
+        r'(?P<module>[\w.]+)\s*'
+        r'(:\s*(?P<attr>[\w.]+))?\s*'
+        r'(?P<extras>\[.*\])?\s*$'
+    )
+
+    @classmethod
+    def parse(cls, src, dist=None):
+        """Parse a single entry point from string `src`
+
+        Entry point syntax follows the form::
+
+            name = some.module:some.attr [extra1, extra2]
+
+        The entry name and module name are required, but the ``:attrs`` and
+        ``[extras]`` parts are optional
+        """
+        m = cls.pattern.match(src)
+        if not m:
+            msg = "EntryPoint must be in 'name=module:attrs [extras]' format"
+            raise ValueError(msg, src)
+        res = m.groupdict()
+        extras = cls._parse_extras(res['extras'])
+        attrs = res['attr'].split('.') if res['attr'] else ()
+        return cls(res['name'], res['module'], attrs, extras, dist)
+
+    @classmethod
+    def _parse_extras(cls, extras_spec):
+        if not extras_spec:
+            return ()
+        req = Requirement.parse('x' + extras_spec)
+        if req.specs:
+            raise ValueError()
+        return req.extras
+
+    @classmethod
+    def parse_group(cls, group, lines, dist=None):
+        """Parse an entry point group"""
+        if not MODULE(group):
+            raise ValueError("Invalid group name", group)
+        this = {}
+        for line in yield_lines(lines):
+            ep = cls.parse(line, dist)
+            if ep.name in this:
+                raise ValueError("Duplicate entry point", group, ep.name)
+            this[ep.name] = ep
+        return this
+
+    @classmethod
+    def parse_map(cls, data, dist=None):
+        """Parse a map of entry point groups"""
+        if isinstance(data, dict):
+            data = data.items()
+        else:
+            data = split_sections(data)
+        maps = {}
+        for group, lines in data:
+            if group is None:
+                if not lines:
+                    continue
+                raise ValueError("Entry points must be listed in groups")
+            group = group.strip()
+            if group in maps:
+                raise ValueError("Duplicate group name", group)
+            maps[group] = cls.parse_group(group, lines, dist)
+        return maps
+
+
+def _remove_md5_fragment(location):
+    if not location:
+        return ''
+    parsed = urllib.parse.urlparse(location)
+    if parsed[-1].startswith('md5='):
+        return urllib.parse.urlunparse(parsed[:-1] + ('',))
+    return location
+
+
+def _version_from_file(lines):
+    """
+    Given an iterable of lines from a Metadata file, return
+    the value of the Version field, if present, or None otherwise.
+    """
+    is_version_line = lambda line: line.lower().startswith('version:')
+    version_lines = filter(is_version_line, lines)
+    line = next(iter(version_lines), '')
+    _, _, value = line.partition(':')
+    return safe_version(value.strip()) or None
+
+
+class Distribution(object):
+    """Wrap an actual or potential sys.path entry w/metadata"""
+    PKG_INFO = 'PKG-INFO'
+
+    def __init__(
+            self, location=None, metadata=None, project_name=None,
+            version=None, py_version=PY_MAJOR, platform=None,
+            precedence=EGG_DIST):
+        self.project_name = safe_name(project_name or 'Unknown')
+        if version is not None:
+            self._version = safe_version(version)
+        self.py_version = py_version
+        self.platform = platform
+        self.location = location
+        self.precedence = precedence
+        self._provider = metadata or empty_provider
+
+    @classmethod
+    def from_location(cls, location, basename, metadata=None, **kw):
+        project_name, version, py_version, platform = [None] * 4
+        basename, ext = os.path.splitext(basename)
+        if ext.lower() in _distributionImpl:
+            cls = _distributionImpl[ext.lower()]
+
+            match = EGG_NAME(basename)
+            if match:
+                project_name, version, py_version, platform = match.group(
+                    'name', 'ver', 'pyver', 'plat'
+                )
+        return cls(
+            location, metadata, project_name=project_name, version=version,
+            py_version=py_version, platform=platform, **kw
+        )._reload_version()
+
+    def _reload_version(self):
+        return self
+
+    @property
+    def hashcmp(self):
+        return (
+            self.parsed_version,
+            self.precedence,
+            self.key,
+            _remove_md5_fragment(self.location),
+            self.py_version or '',
+            self.platform or '',
+        )
+
+    def __hash__(self):
+        return hash(self.hashcmp)
+
+    def __lt__(self, other):
+        return self.hashcmp < other.hashcmp
+
+    def __le__(self, other):
+        return self.hashcmp <= other.hashcmp
+
+    def __gt__(self, other):
+        return self.hashcmp > other.hashcmp
+
+    def __ge__(self, other):
+        return self.hashcmp >= other.hashcmp
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            # It's not a Distribution, so they are not equal
+            return False
+        return self.hashcmp == other.hashcmp
+
+    def __ne__(self, other):
+        return not self == other
+
+    # These properties have to be lazy so that we don't have to load any
+    # metadata until/unless it's actually needed.  (i.e., some distributions
+    # may not know their name or version without loading PKG-INFO)
+
+    @property
+    def key(self):
+        try:
+            return self._key
+        except AttributeError:
+            self._key = key = self.project_name.lower()
+            return key
+
+    @property
+    def parsed_version(self):
+        if not hasattr(self, "_parsed_version"):
+            self._parsed_version = parse_version(self.version)
+
+        return self._parsed_version
+
+    def _warn_legacy_version(self):
+        LV = packaging.version.LegacyVersion
+        is_legacy = isinstance(self._parsed_version, LV)
+        if not is_legacy:
+            return
+
+        # While an empty version is technically a legacy version and
+        # is not a valid PEP 440 version, it's also unlikely to
+        # actually come from someone and instead it is more likely that
+        # it comes from setuptools attempting to parse a filename and
+        # including it in the list. So for that we'll gate this warning
+        # on if the version is anything at all or not.
+        if not self.version:
+            return
+
+        tmpl = textwrap.dedent("""
+            '{project_name} ({version})' is being parsed as a legacy,
+            non PEP 440,
+            version. You may find odd behavior and sort order.
+            In particular it will be sorted as less than 0.0. It
+            is recommended to migrate to PEP 440 compatible
+            versions.
+            """).strip().replace('\n', ' ')
+
+        warnings.warn(tmpl.format(**vars(self)), PEP440Warning)
+
+    @property
+    def version(self):
+        try:
+            return self._version
+        except AttributeError:
+            version = _version_from_file(self._get_metadata(self.PKG_INFO))
+            if version is None:
+                tmpl = "Missing 'Version:' header and/or %s file"
+                raise ValueError(tmpl % self.PKG_INFO, self)
+            return version
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            dm = self.__dep_map = {None: []}
+            for name in 'requires.txt', 'depends.txt':
+                for extra, reqs in split_sections(self._get_metadata(name)):
+                    if extra:
+                        if ':' in extra:
+                            extra, marker = extra.split(':', 1)
+                            if invalid_marker(marker):
+                                # XXX warn
+                                reqs = []
+                            elif not evaluate_marker(marker):
+                                reqs = []
+                        extra = safe_extra(extra) or None
+                    dm.setdefault(extra, []).extend(parse_requirements(reqs))
+            return dm
+
+    def requires(self, extras=()):
+        """List of Requirements needed for this distro if `extras` are used"""
+        dm = self._dep_map
+        deps = []
+        deps.extend(dm.get(None, ()))
+        for ext in extras:
+            try:
+                deps.extend(dm[safe_extra(ext)])
+            except KeyError:
+                raise UnknownExtra(
+                    "%s has no such extra feature %r" % (self, ext)
+                )
+        return deps
+
+    def _get_metadata(self, name):
+        if self.has_metadata(name):
+            for line in self.get_metadata_lines(name):
+                yield line
+
+    def activate(self, path=None, replace=False):
+        """Ensure distribution is importable on `path` (default=sys.path)"""
+        if path is None:
+            path = sys.path
+        self.insert_on(path, replace=replace)
+        if path is sys.path:
+            fixup_namespace_packages(self.location)
+            for pkg in self._get_metadata('namespace_packages.txt'):
+                if pkg in sys.modules:
+                    declare_namespace(pkg)
+
+    def egg_name(self):
+        """Return what this distribution's standard .egg filename should be"""
+        filename = "%s-%s-py%s" % (
+            to_filename(self.project_name), to_filename(self.version),
+            self.py_version or PY_MAJOR
+        )
+
+        if self.platform:
+            filename += '-' + self.platform
+        return filename
+
+    def __repr__(self):
+        if self.location:
+            return "%s (%s)" % (self, self.location)
+        else:
+            return str(self)
+
+    def __str__(self):
+        try:
+            version = getattr(self, 'version', None)
+        except ValueError:
+            version = None
+        version = version or "[unknown version]"
+        return "%s %s" % (self.project_name, version)
+
+    def __getattr__(self, attr):
+        """Delegate all unrecognized public attributes to .metadata provider"""
+        if attr.startswith('_'):
+            raise AttributeError(attr)
+        return getattr(self._provider, attr)
+
+    @classmethod
+    def from_filename(cls, filename, metadata=None, **kw):
+        return cls.from_location(
+            _normalize_cached(filename), os.path.basename(filename), metadata,
+            **kw
+        )
+
+    def as_requirement(self):
+        """Return a ``Requirement`` that matches this distribution exactly"""
+        if isinstance(self.parsed_version, packaging.version.Version):
+            spec = "%s==%s" % (self.project_name, self.parsed_version)
+        else:
+            spec = "%s===%s" % (self.project_name, self.parsed_version)
+
+        return Requirement.parse(spec)
+
+    def load_entry_point(self, group, name):
+        """Return the `name` entry point of `group` or raise ImportError"""
+        ep = self.get_entry_info(group, name)
+        if ep is None:
+            raise ImportError("Entry point %r not found" % ((group, name),))
+        return ep.load()
+
+    def get_entry_map(self, group=None):
+        """Return the entry point map for `group`, or the full entry map"""
+        try:
+            ep_map = self._ep_map
+        except AttributeError:
+            ep_map = self._ep_map = EntryPoint.parse_map(
+                self._get_metadata('entry_points.txt'), self
+            )
+        if group is not None:
+            return ep_map.get(group, {})
+        return ep_map
+
+    def get_entry_info(self, group, name):
+        """Return the EntryPoint object for `group`+`name`, or ``None``"""
+        return self.get_entry_map(group).get(name)
+
+    def insert_on(self, path, loc=None, replace=False):
+        """Ensure self.location is on path
+
+        If replace=False (default):
+            - If location is already in path anywhere, do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent.
+              - Else: add to the end of path.
+        If replace=True:
+            - If location is already on path anywhere (not eggs)
+              or higher priority than its parent (eggs)
+              do nothing.
+            - Else:
+              - If it's an egg and its parent directory is on path,
+                insert just ahead of the parent,
+                removing any lower-priority entries.
+              - Else: add it to the front of path.
+        """
+
+        loc = loc or self.location
+        if not loc:
+            return
+
+        nloc = _normalize_cached(loc)
+        bdir = os.path.dirname(nloc)
+        npath = [(p and _normalize_cached(p) or p) for p in path]
+
+        for p, item in enumerate(npath):
+            if item == nloc:
+                if replace:
+                    break
+                else:
+                    # don't modify path (even removing duplicates) if
+                    # found and not replace
+                    return
+            elif item == bdir and self.precedence == EGG_DIST:
+                # if it's an .egg, give it precedence over its directory
+                # UNLESS it's already been added to sys.path and replace=False
+                if (not replace) and nloc in npath[p:]:
+                    return
+                if path is sys.path:
+                    self.check_version_conflict()
+                path.insert(p, loc)
+                npath.insert(p, nloc)
+                break
+        else:
+            if path is sys.path:
+                self.check_version_conflict()
+            if replace:
+                path.insert(0, loc)
+            else:
+                path.append(loc)
+            return
+
+        # p is the spot where we found or inserted loc; now remove duplicates
+        while True:
+            try:
+                np = npath.index(nloc, p + 1)
+            except ValueError:
+                break
+            else:
+                del npath[np], path[np]
+                # ha!
+                p = np
+
+        return
+
+    def check_version_conflict(self):
+        if self.key == 'setuptools':
+            # ignore the inevitable setuptools self-conflicts  :(
+            return
+
+        nsp = dict.fromkeys(self._get_metadata('namespace_packages.txt'))
+        loc = normalize_path(self.location)
+        for modname in self._get_metadata('top_level.txt'):
+            if (modname not in sys.modules or modname in nsp
+                    or modname in _namespace_packages):
+                continue
+            if modname in ('pkg_resources', 'setuptools', 'site'):
+                continue
+            fn = getattr(sys.modules[modname], '__file__', None)
+            if fn and (normalize_path(fn).startswith(loc) or
+                       fn.startswith(self.location)):
+                continue
+            issue_warning(
+                "Module %s was already imported from %s, but %s is being added"
+                " to sys.path" % (modname, fn, self.location),
+            )
+
+    def has_version(self):
+        try:
+            self.version
+        except ValueError:
+            issue_warning("Unbuilt egg for " + repr(self))
+            return False
+        return True
+
+    def clone(self, **kw):
+        """Copy this distribution, substituting in any changed keyword args"""
+        names = 'project_name version py_version platform location precedence'
+        for attr in names.split():
+            kw.setdefault(attr, getattr(self, attr, None))
+        kw.setdefault('metadata', self._provider)
+        return self.__class__(**kw)
+
+    @property
+    def extras(self):
+        return [dep for dep in self._dep_map if dep]
+
+
+class EggInfoDistribution(Distribution):
+    def _reload_version(self):
+        """
+        Packages installed by distutils (e.g. numpy or scipy),
+        which uses an old safe_version, and so
+        their version numbers can get mangled when
+        converted to filenames (e.g., 1.11.0.dev0+2329eae to
+        1.11.0.dev0_2329eae). These distributions will not be
+        parsed properly
+        downstream by Distribution and safe_version, so
+        take an extra step and try to get the version number from
+        the metadata file itself instead of the filename.
+        """
+        md_version = _version_from_file(self._get_metadata(self.PKG_INFO))
+        if md_version:
+            self._version = md_version
+        return self
+
+
+class DistInfoDistribution(Distribution):
+    """
+    Wrap an actual or potential sys.path entry
+    w/metadata, .dist-info style.
+    """
+    PKG_INFO = 'METADATA'
+    EQEQ = re.compile(r"([\(,])\s*(\d.*?)\s*([,\)])")
+
+    @property
+    def _parsed_pkg_info(self):
+        """Parse and cache metadata"""
+        try:
+            return self._pkg_info
+        except AttributeError:
+            metadata = self.get_metadata(self.PKG_INFO)
+            self._pkg_info = email.parser.Parser().parsestr(metadata)
+            return self._pkg_info
+
+    @property
+    def _dep_map(self):
+        try:
+            return self.__dep_map
+        except AttributeError:
+            self.__dep_map = self._compute_dependencies()
+            return self.__dep_map
+
+    def _compute_dependencies(self):
+        """Recompute this distribution's dependencies."""
+        dm = self.__dep_map = {None: []}
+
+        reqs = []
+        # Including any condition expressions
+        for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
+            reqs.extend(parse_requirements(req))
+
+        def reqs_for_extra(extra):
+            for req in reqs:
+                if not req.marker or req.marker.evaluate({'extra': extra}):
+                    yield req
+
+        common = frozenset(reqs_for_extra(None))
+        dm[None].extend(common)
+
+        for extra in self._parsed_pkg_info.get_all('Provides-Extra') or []:
+            s_extra = safe_extra(extra.strip())
+            dm[s_extra] = list(frozenset(reqs_for_extra(extra)) - common)
+
+        return dm
+
+
+_distributionImpl = {
+    '.egg': Distribution,
+    '.egg-info': EggInfoDistribution,
+    '.dist-info': DistInfoDistribution,
+}
+
+
+def issue_warning(*args, **kw):
+    level = 1
+    g = globals()
+    try:
+        # find the first stack frame that is *not* code in
+        # the pkg_resources module, to use for the warning
+        while sys._getframe(level).f_globals is g:
+            level += 1
+    except ValueError:
+        pass
+    warnings.warn(stacklevel=level + 1, *args, **kw)
+
+
+class RequirementParseError(ValueError):
+    def __str__(self):
+        return ' '.join(self.args)
+
+
+def parse_requirements(strs):
+    """Yield ``Requirement`` objects for each specification in `strs`
+
+    `strs` must be a string, or a (possibly-nested) iterable thereof.
+    """
+    # create a steppable iterator, so we can handle \-continuations
+    lines = iter(yield_lines(strs))
+
+    for line in lines:
+        # Drop comments -- a hash without a space may be in a URL.
+        if ' #' in line:
+            line = line[:line.find(' #')]
+        # If there is a line continuation, drop it, and append the next line.
+        if line.endswith('\\'):
+            line = line[:-2].strip()
+            line += next(lines)
+        yield Requirement(line)
+
+
+class Requirement(packaging.requirements.Requirement):
+    def __init__(self, requirement_string):
+        """DO NOT CALL THIS UNDOCUMENTED METHOD; use Requirement.parse()!"""
+        try:
+            super(Requirement, self).__init__(requirement_string)
+        except packaging.requirements.InvalidRequirement as e:
+            raise RequirementParseError(str(e))
+        self.unsafe_name = self.name
+        project_name = safe_name(self.name)
+        self.project_name, self.key = project_name, project_name.lower()
+        self.specs = [
+            (spec.operator, spec.version) for spec in self.specifier]
+        self.extras = tuple(map(safe_extra, self.extras))
+        self.hashCmp = (
+            self.key,
+            self.specifier,
+            frozenset(self.extras),
+            str(self.marker) if self.marker else None,
+        )
+        self.__hash = hash(self.hashCmp)
+
+    def __eq__(self, other):
+        return (
+            isinstance(other, Requirement) and
+            self.hashCmp == other.hashCmp
+        )
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __contains__(self, item):
+        if isinstance(item, Distribution):
+            if item.key != self.key:
+                return False
+
+            item = item.version
+
+        # Allow prereleases always in order to match the previous behavior of
+        # this method. In the future this should be smarter and follow PEP 440
+        # more accurately.
+        return self.specifier.contains(item, prereleases=True)
+
+    def __hash__(self):
+        return self.__hash
+
+    def __repr__(self):
+        return "Requirement.parse(%r)" % str(self)
+
+    @staticmethod
+    def parse(s):
+        req, = parse_requirements(s)
+        return req
+
+
+def _always_object(classes):
+    """
+    Ensure object appears in the mro even
+    for old-style classes.
+    """
+    if object not in classes:
+        return classes + (object,)
+    return classes
+
+
+def _find_adapter(registry, ob):
+    """Return an adapter factory for `ob` from `registry`"""
+    types = _always_object(inspect.getmro(getattr(ob, '__class__', type(ob))))
+    for t in types:
+        if t in registry:
+            return registry[t]
+
+
+def ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    py31compat.makedirs(dirname, exist_ok=True)
+
+
+def _bypass_ensure_directory(path):
+    """Sandbox-bypassing version of ensure_directory()"""
+    if not WRITE_SUPPORT:
+        raise IOError('"os.mkdir" not supported on this platform.')
+    dirname, filename = split(path)
+    if dirname and filename and not isdir(dirname):
+        _bypass_ensure_directory(dirname)
+        mkdir(dirname, 0o755)
+
+
+def split_sections(s):
+    """Split a string or iterable thereof into (section, content) pairs
+
+    Each ``section`` is a stripped version of the section header ("[section]")
+    and each ``content`` is a list of stripped lines excluding blank lines and
+    comment-only lines.  If there are any such lines before the first section
+    header, they're returned in a first ``section`` of ``None``.
+    """
+    section = None
+    content = []
+    for line in yield_lines(s):
+        if line.startswith("["):
+            if line.endswith("]"):
+                if section or content:
+                    yield section, content
+                section = line[1:-1].strip()
+                content = []
+            else:
+                raise ValueError("Invalid section heading", line)
+        else:
+            content.append(line)
+
+    # wrap up last segment
+    yield section, content
+
+
+def _mkstemp(*args, **kw):
+    old_open = os.open
+    try:
+        # temporarily bypass sandboxing
+        os.open = os_open
+        return tempfile.mkstemp(*args, **kw)
+    finally:
+        # and then put it back
+        os.open = old_open
+
+
+# Silence the PEP440Warning by default, so that end users don't get hit by it
+# randomly just because they use pkg_resources. We want to append the rule
+# because we want earlier uses of filterwarnings to take precedence over this
+# one.
+warnings.filterwarnings("ignore", category=PEP440Warning, append=True)
+
+
+# from jaraco.functools 1.3
+def _call_aside(f, *args, **kwargs):
+    f(*args, **kwargs)
+    return f
+
+
+@_call_aside
+def _initialize(g=globals()):
+    "Set up global resource manager (deliberately not state-saved)"
+    manager = ResourceManager()
+    g['_manager'] = manager
+    g.update(
+        (name, getattr(manager, name))
+        for name in dir(manager)
+        if not name.startswith('_')
+    )
+
+
+@_call_aside
+def _initialize_master_working_set():
+    """
+    Prepare the master working set and make the ``require()``
+    API available.
+
+    This function has explicit effects on the global state
+    of pkg_resources. It is intended to be invoked once at
+    the initialization of this module.
+
+    Invocation by other packages is unsupported and done
+    at their own risk.
+    """
+    working_set = WorkingSet._build_master()
+    _declare_state('object', working_set=working_set)
+
+    require = working_set.require
+    iter_entry_points = working_set.iter_entry_points
+    add_activation_listener = working_set.subscribe
+    run_script = working_set.run_script
+    # backward compatibility
+    run_main = run_script
+    # Activate all distributions already on sys.path with replace=False and
+    # ensure that all distributions added to the working set in the future
+    # (e.g. by calling ``require()``) will get activated as well,
+    # with higher priority (replace=True).
+    tuple(
+        dist.activate(replace=False)
+        for dist in working_set
+    )
+    add_activation_listener(
+        lambda dist: dist.activate(replace=True),
+        existing=False,
+    )
+    working_set.entries = []
+    # match order
+    list(map(working_set.add_entry, sys.path))
+    globals().update(locals())
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--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/appdirs.py
@@ -0,0 +1,552 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (c) 2005-2010 ActiveState Software Inc.
+# Copyright (c) 2013 Eddy Petrișor
+
+"""Utilities for determining application-specific dirs.
+
+See <http://github.com/ActiveState/appdirs> for details and usage.
+"""
+# Dev Notes:
+# - MSDN on where to store app data files:
+#   http://support.microsoft.com/default.aspx?scid=kb;en-us;310294#XSLTH3194121123120121120120
+# - Mac OS X: http://developer.apple.com/documentation/MacOSX/Conceptual/BPFileSystem/index.html
+# - XDG spec for Un*x: http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
+
+__version_info__ = (1, 4, 0)
+__version__ = '.'.join(map(str, __version_info__))
+
+
+import sys
+import os
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    unicode = str
+
+if sys.platform.startswith('java'):
+    import platform
+    os_name = platform.java_ver()[3][0]
+    if os_name.startswith('Windows'): # "Windows XP", "Windows 7", etc.
+        system = 'win32'
+    elif os_name.startswith('Mac'): # "Mac OS X", etc.
+        system = 'darwin'
+    else: # "Linux", "SunOS", "FreeBSD", etc.
+        # Setting this to "linux2" is not ideal, but only Windows or Mac
+        # are actually checked for and the rest of the module expects
+        # *sys.platform* style strings.
+        system = 'linux2'
+else:
+    system = sys.platform
+
+
+
+def user_data_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        Mac OS X:               ~/Library/Application Support/<AppName>
+        Unix:                   ~/.local/share/<AppName>    # or in $XDG_DATA_HOME, if defined
+        Win XP (not roaming):   C:\Documents and Settings\<username>\Application Data\<AppAuthor>\<AppName>
+        Win XP (roaming):       C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>
+        Win 7  (not roaming):   C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>
+        Win 7  (roaming):       C:\Users\<username>\AppData\Roaming\<AppAuthor>\<AppName>
+
+    For Unix, we follow the XDG spec and support $XDG_DATA_HOME.
+    That means, by default "~/.local/share/<AppName>".
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        const = roaming and "CSIDL_APPDATA" or "CSIDL_LOCAL_APPDATA"
+        path = os.path.normpath(_get_win_folder(const))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Application Support/')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_DATA_HOME', os.path.expanduser("~/.local/share"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_data_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of data dirs should be
+            returned. By default, the first item from XDG_DATA_DIRS is
+            returned, or '/usr/local/share/<AppName>',
+            if XDG_DATA_DIRS is not set
+
+    Typical user data directories are:
+        Mac OS X:   /Library/Application Support/<AppName>
+        Unix:       /usr/local/share/<AppName> or /usr/share/<AppName>
+        Win XP:     C:\Documents and Settings\All Users\Application Data\<AppAuthor>\<AppName>
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+        Win 7:      C:\ProgramData\<AppAuthor>\<AppName>   # Hidden, but writeable on Win 7.
+
+    For Unix, this is using the $XDG_DATA_DIRS[0] default.
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_COMMON_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+    elif system == 'darwin':
+        path = os.path.expanduser('/Library/Application Support')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        # XDG default for $XDG_DATA_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_DATA_DIRS',
+                         os.pathsep.join(['/usr/local/share', '/usr/share']))
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+        return path
+
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_config_dir(appname=None, appauthor=None, version=None, roaming=False):
+    r"""Return full path to the user-specific config dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "roaming" (boolean, default False) can be set True to use the Windows
+            roaming appdata directory. That means that for users on a Windows
+            network setup for roaming profiles, this user data will be
+            sync'd on login. See
+            <http://technet.microsoft.com/en-us/library/cc766489(WS.10).aspx>
+            for a discussion of issues.
+
+    Typical user data directories are:
+        Mac OS X:               same as user_data_dir
+        Unix:                   ~/.config/<AppName>     # or in $XDG_CONFIG_HOME, if defined
+        Win *:                  same as user_data_dir
+
+    For Unix, we follow the XDG spec and support $XDG_CONFIG_HOME.
+    That means, by deafult "~/.config/<AppName>".
+    """
+    if system in ["win32", "darwin"]:
+        path = user_data_dir(appname, appauthor, None, roaming)
+    else:
+        path = os.getenv('XDG_CONFIG_HOME', os.path.expanduser("~/.config"))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def site_config_dir(appname=None, appauthor=None, version=None, multipath=False):
+    """Return full path to the user-shared data dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "multipath" is an optional parameter only applicable to *nix
+            which indicates that the entire list of config dirs should be
+            returned. By default, the first item from XDG_CONFIG_DIRS is
+            returned, or '/etc/xdg/<AppName>', if XDG_CONFIG_DIRS is not set
+
+    Typical user data directories are:
+        Mac OS X:   same as site_data_dir
+        Unix:       /etc/xdg/<AppName> or $XDG_CONFIG_DIRS[i]/<AppName> for each value in
+                    $XDG_CONFIG_DIRS
+        Win *:      same as site_data_dir
+        Vista:      (Fail! "C:\ProgramData" is a hidden *system* directory on Vista.)
+
+    For Unix, this is using the $XDG_CONFIG_DIRS[0] default, if multipath=False
+
+    WARNING: Do not use this on Windows. See the Vista-Fail note above for why.
+    """
+    if system in ["win32", "darwin"]:
+        path = site_data_dir(appname, appauthor)
+        if appname and version:
+            path = os.path.join(path, version)
+    else:
+        # XDG default for $XDG_CONFIG_DIRS
+        # only first, if multipath is False
+        path = os.getenv('XDG_CONFIG_DIRS', '/etc/xdg')
+        pathlist = [os.path.expanduser(x.rstrip(os.sep)) for x in path.split(os.pathsep)]
+        if appname:
+            if version:
+                appname = os.path.join(appname, version)
+            pathlist = [os.sep.join([x, appname]) for x in pathlist]
+
+        if multipath:
+            path = os.pathsep.join(pathlist)
+        else:
+            path = pathlist[0]
+    return path
+
+
+def user_cache_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific cache dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Cache" to the base app data dir for Windows. See
+            discussion below.
+
+    Typical user cache directories are:
+        Mac OS X:   ~/Library/Caches/<AppName>
+        Unix:       ~/.cache/<AppName> (XDG default)
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Cache
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Cache
+
+    On Windows the only suggestion in the MSDN docs is that local settings go in
+    the `CSIDL_LOCAL_APPDATA` directory. This is identical to the non-roaming
+    app data dir (the default returned by `user_data_dir` above). Apps typically
+    put cache data somewhere *under* the given dir here. Some examples:
+        ...\Mozilla\Firefox\Profiles\<ProfileName>\Cache
+        ...\Acme\SuperApp\Cache\1.0
+    OPINION: This function appends "Cache" to the `CSIDL_LOCAL_APPDATA` value.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "win32":
+        if appauthor is None:
+            appauthor = appname
+        path = os.path.normpath(_get_win_folder("CSIDL_LOCAL_APPDATA"))
+        if appname:
+            if appauthor is not False:
+                path = os.path.join(path, appauthor, appname)
+            else:
+                path = os.path.join(path, appname)
+            if opinion:
+                path = os.path.join(path, "Cache")
+    elif system == 'darwin':
+        path = os.path.expanduser('~/Library/Caches')
+        if appname:
+            path = os.path.join(path, appname)
+    else:
+        path = os.getenv('XDG_CACHE_HOME', os.path.expanduser('~/.cache'))
+        if appname:
+            path = os.path.join(path, appname)
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+def user_log_dir(appname=None, appauthor=None, version=None, opinion=True):
+    r"""Return full path to the user-specific log dir for this application.
+
+        "appname" is the name of application.
+            If None, just the system directory is returned.
+        "appauthor" (only used on Windows) is the name of the
+            appauthor or distributing body for this application. Typically
+            it is the owning company name. This falls back to appname. You may
+            pass False to disable it.
+        "version" is an optional version path element to append to the
+            path. You might want to use this if you want multiple versions
+            of your app to be able to run independently. If used, this
+            would typically be "<major>.<minor>".
+            Only applied when appname is present.
+        "opinion" (boolean) can be False to disable the appending of
+            "Logs" to the base app data dir for Windows, and "log" to the
+            base cache dir for Unix. See discussion below.
+
+    Typical user cache directories are:
+        Mac OS X:   ~/Library/Logs/<AppName>
+        Unix:       ~/.cache/<AppName>/log  # or under $XDG_CACHE_HOME if defined
+        Win XP:     C:\Documents and Settings\<username>\Local Settings\Application Data\<AppAuthor>\<AppName>\Logs
+        Vista:      C:\Users\<username>\AppData\Local\<AppAuthor>\<AppName>\Logs
+
+    On Windows the only suggestion in the MSDN docs is that local settings
+    go in the `CSIDL_LOCAL_APPDATA` directory. (Note: I'm interested in
+    examples of what some windows apps use for a logs dir.)
+
+    OPINION: This function appends "Logs" to the `CSIDL_LOCAL_APPDATA`
+    value for Windows and appends "log" to the user cache dir for Unix.
+    This can be disabled with the `opinion=False` option.
+    """
+    if system == "darwin":
+        path = os.path.join(
+            os.path.expanduser('~/Library/Logs'),
+            appname)
+    elif system == "win32":
+        path = user_data_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "Logs")
+    else:
+        path = user_cache_dir(appname, appauthor, version)
+        version = False
+        if opinion:
+            path = os.path.join(path, "log")
+    if appname and version:
+        path = os.path.join(path, version)
+    return path
+
+
+class AppDirs(object):
+    """Convenience wrapper for getting application dirs."""
+    def __init__(self, appname, appauthor=None, version=None, roaming=False,
+                 multipath=False):
+        self.appname = appname
+        self.appauthor = appauthor
+        self.version = version
+        self.roaming = roaming
+        self.multipath = multipath
+
+    @property
+    def user_data_dir(self):
+        return user_data_dir(self.appname, self.appauthor,
+                             version=self.version, roaming=self.roaming)
+
+    @property
+    def site_data_dir(self):
+        return site_data_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_config_dir(self):
+        return user_config_dir(self.appname, self.appauthor,
+                               version=self.version, roaming=self.roaming)
+
+    @property
+    def site_config_dir(self):
+        return site_config_dir(self.appname, self.appauthor,
+                             version=self.version, multipath=self.multipath)
+
+    @property
+    def user_cache_dir(self):
+        return user_cache_dir(self.appname, self.appauthor,
+                              version=self.version)
+
+    @property
+    def user_log_dir(self):
+        return user_log_dir(self.appname, self.appauthor,
+                            version=self.version)
+
+
+#---- internal support stuff
+
+def _get_win_folder_from_registry(csidl_name):
+    """This is a fallback technique at best. I'm not sure if using the
+    registry for this guarantees us the correct answer for all CSIDL_*
+    names.
+    """
+    import _winreg
+
+    shell_folder_name = {
+        "CSIDL_APPDATA": "AppData",
+        "CSIDL_COMMON_APPDATA": "Common AppData",
+        "CSIDL_LOCAL_APPDATA": "Local AppData",
+    }[csidl_name]
+
+    key = _winreg.OpenKey(
+        _winreg.HKEY_CURRENT_USER,
+        r"Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders"
+    )
+    dir, type = _winreg.QueryValueEx(key, shell_folder_name)
+    return dir
+
+
+def _get_win_folder_with_pywin32(csidl_name):
+    from win32com.shell import shellcon, shell
+    dir = shell.SHGetFolderPath(0, getattr(shellcon, csidl_name), 0, 0)
+    # Try to make this a unicode path because SHGetFolderPath does
+    # not return unicode strings when there is unicode data in the
+    # path.
+    try:
+        dir = unicode(dir)
+
+        # Downgrade to short path name if have highbit chars. See
+        # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+        has_high_char = False
+        for c in dir:
+            if ord(c) > 255:
+                has_high_char = True
+                break
+        if has_high_char:
+            try:
+                import win32api
+                dir = win32api.GetShortPathName(dir)
+            except ImportError:
+                pass
+    except UnicodeError:
+        pass
+    return dir
+
+
+def _get_win_folder_with_ctypes(csidl_name):
+    import ctypes
+
+    csidl_const = {
+        "CSIDL_APPDATA": 26,
+        "CSIDL_COMMON_APPDATA": 35,
+        "CSIDL_LOCAL_APPDATA": 28,
+    }[csidl_name]
+
+    buf = ctypes.create_unicode_buffer(1024)
+    ctypes.windll.shell32.SHGetFolderPathW(None, csidl_const, None, 0, buf)
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in buf:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf2 = ctypes.create_unicode_buffer(1024)
+        if ctypes.windll.kernel32.GetShortPathNameW(buf.value, buf2, 1024):
+            buf = buf2
+
+    return buf.value
+
+def _get_win_folder_with_jna(csidl_name):
+    import array
+    from com.sun import jna
+    from com.sun.jna.platform import win32
+
+    buf_size = win32.WinDef.MAX_PATH * 2
+    buf = array.zeros('c', buf_size)
+    shell = win32.Shell32.INSTANCE
+    shell.SHGetFolderPath(None, getattr(win32.ShlObj, csidl_name), None, win32.ShlObj.SHGFP_TYPE_CURRENT, buf)
+    dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    # Downgrade to short path name if have highbit chars. See
+    # <http://bugs.activestate.com/show_bug.cgi?id=85099>.
+    has_high_char = False
+    for c in dir:
+        if ord(c) > 255:
+            has_high_char = True
+            break
+    if has_high_char:
+        buf = array.zeros('c', buf_size)
+        kernel = win32.Kernel32.INSTANCE
+        if kernal.GetShortPathName(dir, buf, buf_size):
+            dir = jna.Native.toString(buf.tostring()).rstrip("\0")
+
+    return dir
+
+if system == "win32":
+    try:
+        import win32com.shell
+        _get_win_folder = _get_win_folder_with_pywin32
+    except ImportError:
+        try:
+            from ctypes import windll
+            _get_win_folder = _get_win_folder_with_ctypes
+        except ImportError:
+            try:
+                import com.sun.jna
+                _get_win_folder = _get_win_folder_with_jna
+            except ImportError:
+                _get_win_folder = _get_win_folder_from_registry
+
+
+#---- self test code
+
+if __name__ == "__main__":
+    appname = "MyApp"
+    appauthor = "MyCompany"
+
+    props = ("user_data_dir", "site_data_dir",
+             "user_config_dir", "site_config_dir",
+             "user_cache_dir", "user_log_dir")
+
+    print("-- app dirs (with optional 'version')")
+    dirs = AppDirs(appname, appauthor, version="1.0")
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'version')")
+    dirs = AppDirs(appname, appauthor)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (without optional 'appauthor')")
+    dirs = AppDirs(appname)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
+
+    print("\n-- app dirs (with disabled 'appauthor')")
+    dirs = AppDirs(appname, appauthor=False)
+    for prop in props:
+        print("%s: %s" % (prop, getattr(dirs, prop)))
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py
new file mode 100644
index 0000000..95d330e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__about__.py
@@ -0,0 +1,21 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
+
+__title__ = "packaging"
+__summary__ = "Core utilities for Python packages"
+__uri__ = "https://github.com/pypa/packaging"
+
+__version__ = "16.8"
+
+__author__ = "Donald Stufft and individual contributors"
+__email__ = "donald@stufft.io"
+
+__license__ = "BSD or Apache License, Version 2.0"
+__copyright__ = "Copyright 2014-2016 %s" % __author__
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py
new file mode 100644
index 0000000..5ee6220
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__init__.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+from .__about__ import (
+    __author__, __copyright__, __email__, __license__, __summary__, __title__,
+    __uri__, __version__
+)
+
+__all__ = [
+    "__title__", "__summary__", "__uri__", "__version__", "__author__",
+    "__email__", "__license__", "__copyright__",
+]
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diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__pycache__/version.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/__pycache__/version.cpython-35.pyc
new file mode 100644
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diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py
new file mode 100644
index 0000000..210bb80
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_compat.py
@@ -0,0 +1,30 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import sys
+
+
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+
+# flake8: noqa
+
+if PY3:
+    string_types = str,
+else:
+    string_types = basestring,
+
+
+def with_metaclass(meta, *bases):
+    """
+    Create a base class with a metaclass.
+    """
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py
new file mode 100644
index 0000000..ccc2786
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/_structures.py
@@ -0,0 +1,68 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+
+class Infinity(object):
+
+    def __repr__(self):
+        return "Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return False
+
+    def __le__(self, other):
+        return False
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return True
+
+    def __ge__(self, other):
+        return True
+
+    def __neg__(self):
+        return NegativeInfinity
+
+Infinity = Infinity()
+
+
+class NegativeInfinity(object):
+
+    def __repr__(self):
+        return "-Infinity"
+
+    def __hash__(self):
+        return hash(repr(self))
+
+    def __lt__(self, other):
+        return True
+
+    def __le__(self, other):
+        return True
+
+    def __eq__(self, other):
+        return isinstance(other, self.__class__)
+
+    def __ne__(self, other):
+        return not isinstance(other, self.__class__)
+
+    def __gt__(self, other):
+        return False
+
+    def __ge__(self, other):
+        return False
+
+    def __neg__(self):
+        return Infinity
+
+NegativeInfinity = NegativeInfinity()
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py
new file mode 100644
index 0000000..892e578
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/markers.py
@@ -0,0 +1,301 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import operator
+import os
+import platform
+import sys
+
+from pkg_resources.extern.pyparsing import ParseException, ParseResults, stringStart, stringEnd
+from pkg_resources.extern.pyparsing import ZeroOrMore, Group, Forward, QuotedString
+from pkg_resources.extern.pyparsing import Literal as L  # noqa
+
+from ._compat import string_types
+from .specifiers import Specifier, InvalidSpecifier
+
+
+__all__ = [
+    "InvalidMarker", "UndefinedComparison", "UndefinedEnvironmentName",
+    "Marker", "default_environment",
+]
+
+
+class InvalidMarker(ValueError):
+    """
+    An invalid marker was found, users should refer to PEP 508.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """
+    An invalid operation was attempted on a value that doesn't support it.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """
+    A name was attempted to be used that does not exist inside of the
+    environment.
+    """
+
+
+class Node(object):
+
+    def __init__(self, value):
+        self.value = value
+
+    def __str__(self):
+        return str(self.value)
+
+    def __repr__(self):
+        return "<{0}({1!r})>".format(self.__class__.__name__, str(self))
+
+    def serialize(self):
+        raise NotImplementedError
+
+
+class Variable(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+class Value(Node):
+
+    def serialize(self):
+        return '"{0}"'.format(self)
+
+
+class Op(Node):
+
+    def serialize(self):
+        return str(self)
+
+
+VARIABLE = (
+    L("implementation_version") |
+    L("platform_python_implementation") |
+    L("implementation_name") |
+    L("python_full_version") |
+    L("platform_release") |
+    L("platform_version") |
+    L("platform_machine") |
+    L("platform_system") |
+    L("python_version") |
+    L("sys_platform") |
+    L("os_name") |
+    L("os.name") |  # PEP-345
+    L("sys.platform") |  # PEP-345
+    L("platform.version") |  # PEP-345
+    L("platform.machine") |  # PEP-345
+    L("platform.python_implementation") |  # PEP-345
+    L("python_implementation") |  # undocumented setuptools legacy
+    L("extra")
+)
+ALIASES = {
+    'os.name': 'os_name',
+    'sys.platform': 'sys_platform',
+    'platform.version': 'platform_version',
+    'platform.machine': 'platform_machine',
+    'platform.python_implementation': 'platform_python_implementation',
+    'python_implementation': 'platform_python_implementation'
+}
+VARIABLE.setParseAction(lambda s, l, t: Variable(ALIASES.get(t[0], t[0])))
+
+VERSION_CMP = (
+    L("===") |
+    L("==") |
+    L(">=") |
+    L("<=") |
+    L("!=") |
+    L("~=") |
+    L(">") |
+    L("<")
+)
+
+MARKER_OP = VERSION_CMP | L("not in") | L("in")
+MARKER_OP.setParseAction(lambda s, l, t: Op(t[0]))
+
+MARKER_VALUE = QuotedString("'") | QuotedString('"')
+MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0]))
+
+BOOLOP = L("and") | L("or")
+
+MARKER_VAR = VARIABLE | MARKER_VALUE
+
+MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR)
+MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0]))
+
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+
+MARKER_EXPR = Forward()
+MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN)
+MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR)
+
+MARKER = stringStart + MARKER_EXPR + stringEnd
+
+
+def _coerce_parse_result(results):
+    if isinstance(results, ParseResults):
+        return [_coerce_parse_result(i) for i in results]
+    else:
+        return results
+
+
+def _format_marker(marker, first=True):
+    assert isinstance(marker, (list, tuple, string_types))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (isinstance(marker, list) and len(marker) == 1 and
+            isinstance(marker[0], (list, tuple))):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": operator.lt,
+    "<=": operator.le,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.ge,
+    ">": operator.gt,
+}
+
+
+def _eval_op(lhs, op, rhs):
+    try:
+        spec = Specifier("".join([op.serialize(), rhs]))
+    except InvalidSpecifier:
+        pass
+    else:
+        return spec.contains(lhs)
+
+    oper = _operators.get(op.serialize())
+    if oper is None:
+        raise UndefinedComparison(
+            "Undefined {0!r} on {1!r} and {2!r}.".format(op, lhs, rhs)
+        )
+
+    return oper(lhs, rhs)
+
+
+_undefined = object()
+
+
+def _get_env(environment, name):
+    value = environment.get(name, _undefined)
+
+    if value is _undefined:
+        raise UndefinedEnvironmentName(
+            "{0!r} does not exist in evaluation environment.".format(name)
+        )
+
+    return value
+
+
+def _evaluate_markers(markers, environment):
+    groups = [[]]
+
+    for marker in markers:
+        assert isinstance(marker, (list, tuple, string_types))
+
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                lhs_value = _get_env(environment, lhs.value)
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                rhs_value = _get_env(environment, rhs.value)
+
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value))
+        else:
+            assert marker in ["and", "or"]
+            if marker == "or":
+                groups.append([])
+
+    return any(all(item) for item in groups)
+
+
+def format_full_version(info):
+    version = '{0.major}.{0.minor}.{0.micro}'.format(info)
+    kind = info.releaselevel
+    if kind != 'final':
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment():
+    if hasattr(sys, 'implementation'):
+        iver = format_full_version(sys.implementation.version)
+        implementation_name = sys.implementation.name
+    else:
+        iver = '0'
+        implementation_name = ''
+
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": platform.python_version()[:3],
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker(object):
+
+    def __init__(self, marker):
+        try:
+            self._markers = _coerce_parse_result(MARKER.parseString(marker))
+        except ParseException as e:
+            err_str = "Invalid marker: {0!r}, parse error at {1!r}".format(
+                marker, marker[e.loc:e.loc + 8])
+            raise InvalidMarker(err_str)
+
+    def __str__(self):
+        return _format_marker(self._markers)
+
+    def __repr__(self):
+        return "<Marker({0!r})>".format(str(self))
+
+    def evaluate(self, environment=None):
+        """Evaluate a marker.
+
+        Return the boolean from evaluating the given marker against the
+        environment. environment is an optional argument to override all or
+        part of the determined environment.
+
+        The environment is determined from the current Python process.
+        """
+        current_environment = default_environment()
+        if environment is not None:
+            current_environment.update(environment)
+
+        return _evaluate_markers(self._markers, current_environment)
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py
new file mode 100644
index 0000000..0c8c4a3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/requirements.py
@@ -0,0 +1,127 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import string
+import re
+
+from pkg_resources.extern.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
+from pkg_resources.extern.pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
+from pkg_resources.extern.pyparsing import Literal as L  # noqa
+from pkg_resources.extern.six.moves.urllib import parse as urlparse
+
+from .markers import MARKER_EXPR, Marker
+from .specifiers import LegacySpecifier, Specifier, SpecifierSet
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+ALPHANUM = Word(string.ascii_letters + string.digits)
+
+LBRACKET = L("[").suppress()
+RBRACKET = L("]").suppress()
+LPAREN = L("(").suppress()
+RPAREN = L(")").suppress()
+COMMA = L(",").suppress()
+SEMICOLON = L(";").suppress()
+AT = L("@").suppress()
+
+PUNCTUATION = Word("-_.")
+IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
+IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
+
+NAME = IDENTIFIER("name")
+EXTRA = IDENTIFIER
+
+URI = Regex(r'[^ ]+')("url")
+URL = (AT + URI)
+
+EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA)
+EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras")
+
+VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE)
+VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE)
+
+VERSION_ONE = VERSION_PEP440 ^ VERSION_LEGACY
+VERSION_MANY = Combine(VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE),
+                       joinString=",", adjacent=False)("_raw_spec")
+_VERSION_SPEC = Optional(((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY))
+_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or '')
+
+VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier")
+VERSION_SPEC.setParseAction(lambda s, l, t: t[1])
+
+MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
+MARKER_EXPR.setParseAction(
+    lambda s, l, t: Marker(s[t._original_start:t._original_end])
+)
+MARKER_SEPERATOR = SEMICOLON
+MARKER = MARKER_SEPERATOR + MARKER_EXPR
+
+VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER)
+URL_AND_MARKER = URL + Optional(MARKER)
+
+NAMED_REQUIREMENT = \
+    NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER)
+
+REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd
+
+
+class Requirement(object):
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string):
+        try:
+            req = REQUIREMENT.parseString(requirement_string)
+        except ParseException as e:
+            raise InvalidRequirement(
+                "Invalid requirement, parse error at \"{0!r}\"".format(
+                    requirement_string[e.loc:e.loc + 8]))
+
+        self.name = req.name
+        if req.url:
+            parsed_url = urlparse.urlparse(req.url)
+            if not (parsed_url.scheme and parsed_url.netloc) or (
+                    not parsed_url.scheme and not parsed_url.netloc):
+                raise InvalidRequirement("Invalid URL given")
+            self.url = req.url
+        else:
+            self.url = None
+        self.extras = set(req.extras.asList() if req.extras else [])
+        self.specifier = SpecifierSet(req.specifier)
+        self.marker = req.marker if req.marker else None
+
+    def __str__(self):
+        parts = [self.name]
+
+        if self.extras:
+            parts.append("[{0}]".format(",".join(sorted(self.extras))))
+
+        if self.specifier:
+            parts.append(str(self.specifier))
+
+        if self.url:
+            parts.append("@ {0}".format(self.url))
+
+        if self.marker:
+            parts.append("; {0}".format(self.marker))
+
+        return "".join(parts)
+
+    def __repr__(self):
+        return "<Requirement({0!r})>".format(str(self))
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py
new file mode 100644
index 0000000..7f5a76c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/specifiers.py
@@ -0,0 +1,774 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import abc
+import functools
+import itertools
+import re
+
+from ._compat import string_types, with_metaclass
+from .version import Version, LegacyVersion, parse
+
+
+class InvalidSpecifier(ValueError):
+    """
+    An invalid specifier was found, users should refer to PEP 440.
+    """
+
+
+class BaseSpecifier(with_metaclass(abc.ABCMeta, object)):
+
+    @abc.abstractmethod
+    def __str__(self):
+        """
+        Returns the str representation of this Specifier like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self):
+        """
+        Returns a hash value for this Specifier like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are equal.
+        """
+
+    @abc.abstractmethod
+    def __ne__(self, other):
+        """
+        Returns a boolean representing whether or not the two Specifier like
+        objects are not equal.
+        """
+
+    @abc.abstractproperty
+    def prereleases(self):
+        """
+        Returns whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @prereleases.setter
+    def prereleases(self, value):
+        """
+        Sets whether or not pre-releases as a whole are allowed by this
+        specifier.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item, prereleases=None):
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @abc.abstractmethod
+    def filter(self, iterable, prereleases=None):
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class _IndividualSpecifier(BaseSpecifier):
+
+    _operators = {}
+
+    def __init__(self, spec="", prereleases=None):
+        match = self._regex.search(spec)
+        if not match:
+            raise InvalidSpecifier("Invalid specifier: '{0}'".format(spec))
+
+        self._spec = (
+            match.group("operator").strip(),
+            match.group("version").strip(),
+        )
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<{0}({1!r}{2})>".format(
+            self.__class__.__name__,
+            str(self),
+            pre,
+        )
+
+    def __str__(self):
+        return "{0}{1}".format(*self._spec)
+
+    def __hash__(self):
+        return hash(self._spec)
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec == other._spec
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            try:
+                other = self.__class__(other)
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._spec != other._spec
+
+    def _get_operator(self, op):
+        return getattr(self, "_compare_{0}".format(self._operators[op]))
+
+    def _coerce_version(self, version):
+        if not isinstance(version, (LegacyVersion, Version)):
+            version = parse(version)
+        return version
+
+    @property
+    def operator(self):
+        return self._spec[0]
+
+    @property
+    def version(self):
+        return self._spec[1]
+
+    @property
+    def prereleases(self):
+        return self._prereleases
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Determine if prereleases are to be allowed or not.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # Normalize item to a Version or LegacyVersion, this allows us to have
+        # a shortcut for ``"2.0" in Specifier(">=2")
+        item = self._coerce_version(item)
+
+        # Determine if we should be supporting prereleases in this specifier
+        # or not, if we do not support prereleases than we can short circuit
+        # logic if this version is a prereleases.
+        if item.is_prerelease and not prereleases:
+            return False
+
+        # Actually do the comparison to determine if this item is contained
+        # within this Specifier or not.
+        return self._get_operator(self.operator)(item, self.version)
+
+    def filter(self, iterable, prereleases=None):
+        yielded = False
+        found_prereleases = []
+
+        kw = {"prereleases": prereleases if prereleases is not None else True}
+
+        # Attempt to iterate over all the values in the iterable and if any of
+        # them match, yield them.
+        for version in iterable:
+            parsed_version = self._coerce_version(version)
+
+            if self.contains(parsed_version, **kw):
+                # If our version is a prerelease, and we were not set to allow
+                # prereleases, then we'll store it for later incase nothing
+                # else matches this specifier.
+                if (parsed_version.is_prerelease and not
+                        (prereleases or self.prereleases)):
+                    found_prereleases.append(version)
+                # Either this is not a prerelease, or we should have been
+                # accepting prereleases from the begining.
+                else:
+                    yielded = True
+                    yield version
+
+        # Now that we've iterated over everything, determine if we've yielded
+        # any values, and if we have not and we have any prereleases stored up
+        # then we will go ahead and yield the prereleases.
+        if not yielded and found_prereleases:
+            for version in found_prereleases:
+                yield version
+
+
+class LegacySpecifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(==|!=|<=|>=|<|>))
+        \s*
+        (?P<version>
+            [^,;\s)]* # Since this is a "legacy" specifier, and the version
+                      # string can be just about anything, we match everything
+                      # except for whitespace, a semi-colon for marker support,
+                      # a closing paren since versions can be enclosed in
+                      # them, and a comma since it's a version separator.
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+    }
+
+    def _coerce_version(self, version):
+        if not isinstance(version, LegacyVersion):
+            version = LegacyVersion(str(version))
+        return version
+
+    def _compare_equal(self, prospective, spec):
+        return prospective == self._coerce_version(spec)
+
+    def _compare_not_equal(self, prospective, spec):
+        return prospective != self._coerce_version(spec)
+
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= self._coerce_version(spec)
+
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= self._coerce_version(spec)
+
+    def _compare_less_than(self, prospective, spec):
+        return prospective < self._coerce_version(spec)
+
+    def _compare_greater_than(self, prospective, spec):
+        return prospective > self._coerce_version(spec)
+
+
+def _require_version_compare(fn):
+    @functools.wraps(fn)
+    def wrapped(self, prospective, spec):
+        if not isinstance(prospective, Version):
+            return False
+        return fn(self, prospective, spec)
+    return wrapped
+
+
+class Specifier(_IndividualSpecifier):
+
+    _regex_str = (
+        r"""
+        (?P<operator>(~=|==|!=|<=|>=|<|>|===))
+        (?P<version>
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                (?<====)  # Only match for the identity operator
+                \s*
+                [^\s]*    # We just match everything, except for whitespace
+                          # since we are only testing for strict identity.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?<===|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+
+                # You cannot use a wild card and a dev or local version
+                # together so group them with a | and make them optional.
+                (?:
+                    (?:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                    |
+                    \.\*  # Wild card syntax of .*
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?<=~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?<!==|!=|~=)         # We have special cases for these
+                                      # operators so we want to make sure they
+                                      # don't match here.
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?:                   # pre release
+                    [-_\.]?
+                    (a|b|c|rc|alpha|beta|pre|preview)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+        )
+        """
+    )
+
+    _regex = re.compile(
+        r"^\s*" + _regex_str + r"\s*$", re.VERBOSE | re.IGNORECASE)
+
+    _operators = {
+        "~=": "compatible",
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    @_require_version_compare
+    def _compare_compatible(self, prospective, spec):
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore post and dev releases and we want to treat the pre-release as
+        # it's own separate segment.
+        prefix = ".".join(
+            list(
+                itertools.takewhile(
+                    lambda x: (not x.startswith("post") and not
+                               x.startswith("dev")),
+                    _version_split(spec),
+                )
+            )[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return (self._get_operator(">=")(prospective, spec) and
+                self._get_operator("==")(prospective, prefix))
+
+    @_require_version_compare
+    def _compare_equal(self, prospective, spec):
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            # In the case of prefix matching we want to ignore local segment.
+            prospective = Version(prospective.public)
+            # Split the spec out by dots, and pretend that there is an implicit
+            # dot in between a release segment and a pre-release segment.
+            spec = _version_split(spec[:-2])  # Remove the trailing .*
+
+            # Split the prospective version out by dots, and pretend that there
+            # is an implicit dot in between a release segment and a pre-release
+            # segment.
+            prospective = _version_split(str(prospective))
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            prospective = prospective[:len(spec)]
+
+            # Pad out our two sides with zeros so that they both equal the same
+            # length.
+            spec, prospective = _pad_version(spec, prospective)
+        else:
+            # Convert our spec string into a Version
+            spec = Version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec.local:
+                prospective = Version(prospective.public)
+
+        return prospective == spec
+
+    @_require_version_compare
+    def _compare_not_equal(self, prospective, spec):
+        return not self._compare_equal(prospective, spec)
+
+    @_require_version_compare
+    def _compare_less_than_equal(self, prospective, spec):
+        return prospective <= Version(spec)
+
+    @_require_version_compare
+    def _compare_greater_than_equal(self, prospective, spec):
+        return prospective >= Version(spec)
+
+    @_require_version_compare
+    def _compare_less_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a pre-release version, that we do not accept pre-release
+        # versions for the version mentioned in the specifier (e.g. <3.1 should
+        # not match 3.1.dev0, but should match 3.0.dev0).
+        if not spec.is_prerelease and prospective.is_prerelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    @_require_version_compare
+    def _compare_greater_than(self, prospective, spec):
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = Version(spec)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # This special case is here so that, unless the specifier itself
+        # includes is a post-release version, that we do not accept
+        # post-release versions for the version mentioned in the specifier
+        # (e.g. >3.1 should not match 3.0.post0, but should match 3.2.post0).
+        if not spec.is_postrelease and prospective.is_postrelease:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # Ensure that we do not allow a local version of the version mentioned
+        # in the specifier, which is techincally greater than, to match.
+        if prospective.local is not None:
+            if Version(prospective.base_version) == Version(spec.base_version):
+                return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective, spec):
+        return str(prospective).lower() == str(spec).lower()
+
+    @property
+    def prereleases(self):
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Look at all of our specifiers and determine if they are inclusive
+        # operators, and if they are if they are including an explicit
+        # prerelease.
+        operator, version = self._spec
+        if operator in ["==", ">=", "<=", "~=", "==="]:
+            # The == specifier can include a trailing .*, if it does we
+            # want to remove before parsing.
+            if operator == "==" and version.endswith(".*"):
+                version = version[:-2]
+
+            # Parse the version, and if it is a pre-release than this
+            # specifier allows pre-releases.
+            if parse(version).is_prerelease:
+                return True
+
+        return False
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+
+_prefix_regex = re.compile(r"^([0-9]+)((?:a|b|c|rc)[0-9]+)$")
+
+
+def _version_split(version):
+    result = []
+    for item in version.split("."):
+        match = _prefix_regex.search(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _pad_version(left, right):
+    left_split, right_split = [], []
+
+    # Get the release segment of our versions
+    left_split.append(list(itertools.takewhile(lambda x: x.isdigit(), left)))
+    right_split.append(list(itertools.takewhile(lambda x: x.isdigit(), right)))
+
+    # Get the rest of our versions
+    left_split.append(left[len(left_split[0]):])
+    right_split.append(right[len(right_split[0]):])
+
+    # Insert our padding
+    left_split.insert(
+        1,
+        ["0"] * max(0, len(right_split[0]) - len(left_split[0])),
+    )
+    right_split.insert(
+        1,
+        ["0"] * max(0, len(left_split[0]) - len(right_split[0])),
+    )
+
+    return (
+        list(itertools.chain(*left_split)),
+        list(itertools.chain(*right_split)),
+    )
+
+
+class SpecifierSet(BaseSpecifier):
+
+    def __init__(self, specifiers="", prereleases=None):
+        # Split on , to break each indidivual specifier into it's own item, and
+        # strip each item to remove leading/trailing whitespace.
+        specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+        # Parsed each individual specifier, attempting first to make it a
+        # Specifier and falling back to a LegacySpecifier.
+        parsed = set()
+        for specifier in specifiers:
+            try:
+                parsed.add(Specifier(specifier))
+            except InvalidSpecifier:
+                parsed.add(LegacySpecifier(specifier))
+
+        # Turn our parsed specifiers into a frozen set and save them for later.
+        self._specs = frozenset(parsed)
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+    def __repr__(self):
+        pre = (
+            ", prereleases={0!r}".format(self.prereleases)
+            if self._prereleases is not None
+            else ""
+        )
+
+        return "<SpecifierSet({0!r}{1})>".format(str(self), pre)
+
+    def __str__(self):
+        return ",".join(sorted(str(s) for s in self._specs))
+
+    def __hash__(self):
+        return hash(self._specs)
+
+    def __and__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = frozenset(self._specs | other._specs)
+
+        if self._prereleases is None and other._prereleases is not None:
+            specifier._prereleases = other._prereleases
+        elif self._prereleases is not None and other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        elif self._prereleases == other._prereleases:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease "
+                "overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs == other._specs
+
+    def __ne__(self, other):
+        if isinstance(other, string_types):
+            other = SpecifierSet(other)
+        elif isinstance(other, _IndividualSpecifier):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._specs != other._specs
+
+    def __len__(self):
+        return len(self._specs)
+
+    def __iter__(self):
+        return iter(self._specs)
+
+    @property
+    def prereleases(self):
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        return any(s.prereleases for s in self._specs)
+
+    @prereleases.setter
+    def prereleases(self, value):
+        self._prereleases = value
+
+    def __contains__(self, item):
+        return self.contains(item)
+
+    def contains(self, item, prereleases=None):
+        # Ensure that our item is a Version or LegacyVersion instance.
+        if not isinstance(item, (LegacyVersion, Version)):
+            item = parse(item)
+
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # We can determine if we're going to allow pre-releases by looking to
+        # see if any of the underlying items supports them. If none of them do
+        # and this item is a pre-release then we do not allow it and we can
+        # short circuit that here.
+        # Note: This means that 1.0.dev1 would not be contained in something
+        #       like >=1.0.devabc however it would be in >=1.0.debabc,>0.0.dev0
+        if not prereleases and item.is_prerelease:
+            return False
+
+        # We simply dispatch to the underlying specs here to make sure that the
+        # given version is contained within all of them.
+        # Note: This use of all() here means that an empty set of specifiers
+        #       will always return True, this is an explicit design decision.
+        return all(
+            s.contains(item, prereleases=prereleases)
+            for s in self._specs
+        )
+
+    def filter(self, iterable, prereleases=None):
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None:
+            prereleases = self.prereleases
+
+        # If we have any specifiers, then we want to wrap our iterable in the
+        # filter method for each one, this will act as a logical AND amongst
+        # each specifier.
+        if self._specs:
+            for spec in self._specs:
+                iterable = spec.filter(iterable, prereleases=bool(prereleases))
+            return iterable
+        # If we do not have any specifiers, then we need to have a rough filter
+        # which will filter out any pre-releases, unless there are no final
+        # releases, and which will filter out LegacyVersion in general.
+        else:
+            filtered = []
+            found_prereleases = []
+
+            for item in iterable:
+                # Ensure that we some kind of Version class for this item.
+                if not isinstance(item, (LegacyVersion, Version)):
+                    parsed_version = parse(item)
+                else:
+                    parsed_version = item
+
+                # Filter out any item which is parsed as a LegacyVersion
+                if isinstance(parsed_version, LegacyVersion):
+                    continue
+
+                # Store any item which is a pre-release for later unless we've
+                # already found a final version or we are accepting prereleases
+                if parsed_version.is_prerelease and not prereleases:
+                    if not filtered:
+                        found_prereleases.append(item)
+                else:
+                    filtered.append(item)
+
+            # If we've found no items except for pre-releases, then we'll go
+            # ahead and use the pre-releases
+            if not filtered and found_prereleases and prereleases is None:
+                return found_prereleases
+
+            return filtered
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py
new file mode 100644
index 0000000..942387c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/utils.py
@@ -0,0 +1,14 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import re
+
+
+_canonicalize_regex = re.compile(r"[-_.]+")
+
+
+def canonicalize_name(name):
+    # This is taken from PEP 503.
+    return _canonicalize_regex.sub("-", name).lower()
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py
new file mode 100644
index 0000000..83b5ee8
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/packaging/version.py
@@ -0,0 +1,393 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import absolute_import, division, print_function
+
+import collections
+import itertools
+import re
+
+from ._structures import Infinity
+
+
+__all__ = [
+    "parse", "Version", "LegacyVersion", "InvalidVersion", "VERSION_PATTERN"
+]
+
+
+_Version = collections.namedtuple(
+    "_Version",
+    ["epoch", "release", "dev", "pre", "post", "local"],
+)
+
+
+def parse(version):
+    """
+    Parse the given version string and return either a :class:`Version` object
+    or a :class:`LegacyVersion` object depending on if the given version is
+    a valid PEP 440 version or a legacy version.
+    """
+    try:
+        return Version(version)
+    except InvalidVersion:
+        return LegacyVersion(version)
+
+
+class InvalidVersion(ValueError):
+    """
+    An invalid version was found, users should refer to PEP 440.
+    """
+
+
+class _BaseVersion(object):
+
+    def __hash__(self):
+        return hash(self._key)
+
+    def __lt__(self, other):
+        return self._compare(other, lambda s, o: s < o)
+
+    def __le__(self, other):
+        return self._compare(other, lambda s, o: s <= o)
+
+    def __eq__(self, other):
+        return self._compare(other, lambda s, o: s == o)
+
+    def __ge__(self, other):
+        return self._compare(other, lambda s, o: s >= o)
+
+    def __gt__(self, other):
+        return self._compare(other, lambda s, o: s > o)
+
+    def __ne__(self, other):
+        return self._compare(other, lambda s, o: s != o)
+
+    def _compare(self, other, method):
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return method(self._key, other._key)
+
+
+class LegacyVersion(_BaseVersion):
+
+    def __init__(self, version):
+        self._version = str(version)
+        self._key = _legacy_cmpkey(self._version)
+
+    def __str__(self):
+        return self._version
+
+    def __repr__(self):
+        return "<LegacyVersion({0})>".format(repr(str(self)))
+
+    @property
+    def public(self):
+        return self._version
+
+    @property
+    def base_version(self):
+        return self._version
+
+    @property
+    def local(self):
+        return None
+
+    @property
+    def is_prerelease(self):
+        return False
+
+    @property
+    def is_postrelease(self):
+        return False
+
+
+_legacy_version_component_re = re.compile(
+    r"(\d+ | [a-z]+ | \.| -)", re.VERBOSE,
+)
+
+_legacy_version_replacement_map = {
+    "pre": "c", "preview": "c", "-": "final-", "rc": "c", "dev": "@",
+}
+
+
+def _parse_version_parts(s):
+    for part in _legacy_version_component_re.split(s):
+        part = _legacy_version_replacement_map.get(part, part)
+
+        if not part or part == ".":
+            continue
+
+        if part[:1] in "0123456789":
+            # pad for numeric comparison
+            yield part.zfill(8)
+        else:
+            yield "*" + part
+
+    # ensure that alpha/beta/candidate are before final
+    yield "*final"
+
+
+def _legacy_cmpkey(version):
+    # We hardcode an epoch of -1 here. A PEP 440 version can only have a epoch
+    # greater than or equal to 0. This will effectively put the LegacyVersion,
+    # which uses the defacto standard originally implemented by setuptools,
+    # as before all PEP 440 versions.
+    epoch = -1
+
+    # This scheme is taken from pkg_resources.parse_version setuptools prior to
+    # it's adoption of the packaging library.
+    parts = []
+    for part in _parse_version_parts(version.lower()):
+        if part.startswith("*"):
+            # remove "-" before a prerelease tag
+            if part < "*final":
+                while parts and parts[-1] == "*final-":
+                    parts.pop()
+
+            # remove trailing zeros from each series of numeric parts
+            while parts and parts[-1] == "00000000":
+                parts.pop()
+
+        parts.append(part)
+    parts = tuple(parts)
+
+    return epoch, parts
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+VERSION_PATTERN = r"""
+    v?
+    (?:
+        (?:(?P<epoch>[0-9]+)!)?                           # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*)                  # release segment
+        (?P<pre>                                          # pre-release
+            [-_\.]?
+            (?P<pre_l>(a|b|c|rc|alpha|beta|pre|preview))
+            [-_\.]?
+            (?P<pre_n>[0-9]+)?
+        )?
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [-_\.]?
+                (?P<post_l>post|rev|r)
+                [-_\.]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?
+        (?P<dev>                                          # dev release
+            [-_\.]?
+            (?P<dev_l>dev)
+            [-_\.]?
+            (?P<dev_n>[0-9]+)?
+        )?
+    )
+    (?:\+(?P<local>[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?       # local version
+"""
+
+
+class Version(_BaseVersion):
+
+    _regex = re.compile(
+        r"^\s*" + VERSION_PATTERN + r"\s*$",
+        re.VERBOSE | re.IGNORECASE,
+    )
+
+    def __init__(self, version):
+        # Validate the version and parse it into pieces
+        match = self._regex.search(version)
+        if not match:
+            raise InvalidVersion("Invalid version: '{0}'".format(version))
+
+        # Store the parsed out pieces of the version
+        self._version = _Version(
+            epoch=int(match.group("epoch")) if match.group("epoch") else 0,
+            release=tuple(int(i) for i in match.group("release").split(".")),
+            pre=_parse_letter_version(
+                match.group("pre_l"),
+                match.group("pre_n"),
+            ),
+            post=_parse_letter_version(
+                match.group("post_l"),
+                match.group("post_n1") or match.group("post_n2"),
+            ),
+            dev=_parse_letter_version(
+                match.group("dev_l"),
+                match.group("dev_n"),
+            ),
+            local=_parse_local_version(match.group("local")),
+        )
+
+        # Generate a key which will be used for sorting
+        self._key = _cmpkey(
+            self._version.epoch,
+            self._version.release,
+            self._version.pre,
+            self._version.post,
+            self._version.dev,
+            self._version.local,
+        )
+
+    def __repr__(self):
+        return "<Version({0})>".format(repr(str(self)))
+
+    def __str__(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        # Pre-release
+        if self._version.pre is not None:
+            parts.append("".join(str(x) for x in self._version.pre))
+
+        # Post-release
+        if self._version.post is not None:
+            parts.append(".post{0}".format(self._version.post[1]))
+
+        # Development release
+        if self._version.dev is not None:
+            parts.append(".dev{0}".format(self._version.dev[1]))
+
+        # Local version segment
+        if self._version.local is not None:
+            parts.append(
+                "+{0}".format(".".join(str(x) for x in self._version.local))
+            )
+
+        return "".join(parts)
+
+    @property
+    def public(self):
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self):
+        parts = []
+
+        # Epoch
+        if self._version.epoch != 0:
+            parts.append("{0}!".format(self._version.epoch))
+
+        # Release segment
+        parts.append(".".join(str(x) for x in self._version.release))
+
+        return "".join(parts)
+
+    @property
+    def local(self):
+        version_string = str(self)
+        if "+" in version_string:
+            return version_string.split("+", 1)[1]
+
+    @property
+    def is_prerelease(self):
+        return bool(self._version.dev or self._version.pre)
+
+    @property
+    def is_postrelease(self):
+        return bool(self._version.post)
+
+
+def _parse_letter_version(letter, number):
+    if letter:
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        if number is None:
+            number = 0
+
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        if letter == "alpha":
+            letter = "a"
+        elif letter == "beta":
+            letter = "b"
+        elif letter in ["c", "pre", "preview"]:
+            letter = "rc"
+        elif letter in ["rev", "r"]:
+            letter = "post"
+
+        return letter, int(number)
+    if not letter and number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        letter = "post"
+
+        return letter, int(number)
+
+
+_local_version_seperators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local):
+    """
+    Takes a string like abc.1.twelve and turns it into ("abc", 1, "twelve").
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_seperators.split(local)
+        )
+
+
+def _cmpkey(epoch, release, pre, post, dev, local):
+    # When we compare a release version, we want to compare it with all of the
+    # trailing zeros removed. So we'll use a reverse the list, drop all the now
+    # leading zeros until we come to something non zero, then take the rest
+    # re-reverse it back into the correct order and make it a tuple and use
+    # that for our sorting key.
+    release = tuple(
+        reversed(list(
+            itertools.dropwhile(
+                lambda x: x == 0,
+                reversed(release),
+            )
+        ))
+    )
+
+    # We need to "trick" the sorting algorithm to put 1.0.dev0 before 1.0a0.
+    # We'll do this by abusing the pre segment, but we _only_ want to do this
+    # if there is not a pre or a post segment. If we have one of those then
+    # the normal sorting rules will handle this case correctly.
+    if pre is None and post is None and dev is not None:
+        pre = -Infinity
+    # Versions without a pre-release (except as noted above) should sort after
+    # those with one.
+    elif pre is None:
+        pre = Infinity
+
+    # Versions without a post segment should sort before those with one.
+    if post is None:
+        post = -Infinity
+
+    # Versions without a development segment should sort after those with one.
+    if dev is None:
+        dev = Infinity
+
+    if local is None:
+        # Versions without a local segment should sort before those with one.
+        local = -Infinity
+    else:
+        # Versions with a local segment need that segment parsed to implement
+        # the sorting rules in PEP440.
+        # - Alpha numeric segments sort before numeric segments
+        # - Alpha numeric segments sort lexicographically
+        # - Numeric segments sort numerically
+        # - Shorter versions sort before longer versions when the prefixes
+        #   match exactly
+        local = tuple(
+            (i, "") if isinstance(i, int) else (-Infinity, i)
+            for i in local
+        )
+
+    return epoch, release, pre, post, dev, local
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py
new file mode 100644
index 0000000..a212243
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/pyparsing.py
@@ -0,0 +1,5696 @@
+# module pyparsing.py
+#
+# Copyright (c) 2003-2016  Paul T. McGuire
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+
+__doc__ = \
+"""
+pyparsing module - Classes and methods to define and execute parsing grammars
+
+The pyparsing module is an alternative approach to creating and executing simple grammars,
+vs. the traditional lex/yacc approach, or the use of regular expressions.  With pyparsing, you
+don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
+provides a library of classes that you use to construct the grammar directly in Python.
+
+Here is a program to parse "Hello, World!" (or any greeting of the form 
+C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements 
+(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
+L{Literal} expressions)::
+
+    from pyparsing import Word, alphas
+
+    # define grammar of a greeting
+    greet = Word(alphas) + "," + Word(alphas) + "!"
+
+    hello = "Hello, World!"
+    print (hello, "->", greet.parseString(hello))
+
+The program outputs the following::
+
+    Hello, World! -> ['Hello', ',', 'World', '!']
+
+The Python representation of the grammar is quite readable, owing to the self-explanatory
+class names, and the use of '+', '|' and '^' operators.
+
+The L{ParseResults} object returned from L{ParserElement.parseString<ParserElement.parseString>} can be accessed as a nested list, a dictionary, or an
+object with named attributes.
+
+The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
+ - extra or missing whitespace (the above program will also handle "Hello,World!", "Hello  ,  World  !", etc.)
+ - quoted strings
+ - embedded comments
+"""
+
+__version__ = "2.1.10"
+__versionTime__ = "07 Oct 2016 01:31 UTC"
+__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
+
+import string
+from weakref import ref as wkref
+import copy
+import sys
+import warnings
+import re
+import sre_constants
+import collections
+import pprint
+import traceback
+import types
+from datetime import datetime
+
+try:
+    from _thread import RLock
+except ImportError:
+    from threading import RLock
+
+try:
+    from collections import OrderedDict as _OrderedDict
+except ImportError:
+    try:
+        from ordereddict import OrderedDict as _OrderedDict
+    except ImportError:
+        _OrderedDict = None
+
+#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
+
+__all__ = [
+'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
+'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
+'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
+'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
+'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
+'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter', 
+'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
+'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
+'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
+'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'hexnums',
+'htmlComment', 'javaStyleComment', 'line', 'lineEnd', 'lineStart', 'lineno',
+'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
+'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
+'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity', 
+'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
+'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
+'indentedBlock', 'originalTextFor', 'ungroup', 'infixNotation','locatedExpr', 'withClass',
+'CloseMatch', 'tokenMap', 'pyparsing_common',
+]
+
+system_version = tuple(sys.version_info)[:3]
+PY_3 = system_version[0] == 3
+if PY_3:
+    _MAX_INT = sys.maxsize
+    basestring = str
+    unichr = chr
+    _ustr = str
+
+    # build list of single arg builtins, that can be used as parse actions
+    singleArgBuiltins = [sum, len, sorted, reversed, list, tuple, set, any, all, min, max]
+
+else:
+    _MAX_INT = sys.maxint
+    range = xrange
+
+    def _ustr(obj):
+        """Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
+           str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
+           then < returns the unicode object | encodes it with the default encoding | ... >.
+        """
+        if isinstance(obj,unicode):
+            return obj
+
+        try:
+            # If this works, then _ustr(obj) has the same behaviour as str(obj), so
+            # it won't break any existing code.
+            return str(obj)
+
+        except UnicodeEncodeError:
+            # Else encode it
+            ret = unicode(obj).encode(sys.getdefaultencoding(), 'xmlcharrefreplace')
+            xmlcharref = Regex('&#\d+;')
+            xmlcharref.setParseAction(lambda t: '\\u' + hex(int(t[0][2:-1]))[2:])
+            return xmlcharref.transformString(ret)
+
+    # build list of single arg builtins, tolerant of Python version, that can be used as parse actions
+    singleArgBuiltins = []
+    import __builtin__
+    for fname in "sum len sorted reversed list tuple set any all min max".split():
+        try:
+            singleArgBuiltins.append(getattr(__builtin__,fname))
+        except AttributeError:
+            continue
+            
+_generatorType = type((y for y in range(1)))
+ 
+def _xml_escape(data):
+    """Escape &, <, >, ", ', etc. in a string of data."""
+
+    # ampersand must be replaced first
+    from_symbols = '&><"\''
+    to_symbols = ('&'+s+';' for s in "amp gt lt quot apos".split())
+    for from_,to_ in zip(from_symbols, to_symbols):
+        data = data.replace(from_, to_)
+    return data
+
+class _Constants(object):
+    pass
+
+alphas     = string.ascii_uppercase + string.ascii_lowercase
+nums       = "0123456789"
+hexnums    = nums + "ABCDEFabcdef"
+alphanums  = alphas + nums
+_bslash    = chr(92)
+printables = "".join(c for c in string.printable if c not in string.whitespace)
+
+class ParseBaseException(Exception):
+    """base exception class for all parsing runtime exceptions"""
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, pstr, loc=0, msg=None, elem=None ):
+        self.loc = loc
+        if msg is None:
+            self.msg = pstr
+            self.pstr = ""
+        else:
+            self.msg = msg
+            self.pstr = pstr
+        self.parserElement = elem
+        self.args = (pstr, loc, msg)
+
+    @classmethod
+    def _from_exception(cls, pe):
+        """
+        internal factory method to simplify creating one type of ParseException 
+        from another - avoids having __init__ signature conflicts among subclasses
+        """
+        return cls(pe.pstr, pe.loc, pe.msg, pe.parserElement)
+
+    def __getattr__( self, aname ):
+        """supported attributes by name are:
+            - lineno - returns the line number of the exception text
+            - col - returns the column number of the exception text
+            - line - returns the line containing the exception text
+        """
+        if( aname == "lineno" ):
+            return lineno( self.loc, self.pstr )
+        elif( aname in ("col", "column") ):
+            return col( self.loc, self.pstr )
+        elif( aname == "line" ):
+            return line( self.loc, self.pstr )
+        else:
+            raise AttributeError(aname)
+
+    def __str__( self ):
+        return "%s (at char %d), (line:%d, col:%d)" % \
+                ( self.msg, self.loc, self.lineno, self.column )
+    def __repr__( self ):
+        return _ustr(self)
+    def markInputline( self, markerString = ">!<" ):
+        """Extracts the exception line from the input string, and marks
+           the location of the exception with a special symbol.
+        """
+        line_str = self.line
+        line_column = self.column - 1
+        if markerString:
+            line_str = "".join((line_str[:line_column],
+                                markerString, line_str[line_column:]))
+        return line_str.strip()
+    def __dir__(self):
+        return "lineno col line".split() + dir(type(self))
+
+class ParseException(ParseBaseException):
+    """
+    Exception thrown when parse expressions don't match class;
+    supported attributes by name are:
+     - lineno - returns the line number of the exception text
+     - col - returns the column number of the exception text
+     - line - returns the line containing the exception text
+        
+    Example::
+        try:
+            Word(nums).setName("integer").parseString("ABC")
+        except ParseException as pe:
+            print(pe)
+            print("column: {}".format(pe.col))
+            
+    prints::
+       Expected integer (at char 0), (line:1, col:1)
+        column: 1
+    """
+    pass
+
+class ParseFatalException(ParseBaseException):
+    """user-throwable exception thrown when inconsistent parse content
+       is found; stops all parsing immediately"""
+    pass
+
+class ParseSyntaxException(ParseFatalException):
+    """just like L{ParseFatalException}, but thrown internally when an
+       L{ErrorStop<And._ErrorStop>} ('-' operator) indicates that parsing is to stop 
+       immediately because an unbacktrackable syntax error has been found"""
+    pass
+
+#~ class ReparseException(ParseBaseException):
+    #~ """Experimental class - parse actions can raise this exception to cause
+       #~ pyparsing to reparse the input string:
+        #~ - with a modified input string, and/or
+        #~ - with a modified start location
+       #~ Set the values of the ReparseException in the constructor, and raise the
+       #~ exception in a parse action to cause pyparsing to use the new string/location.
+       #~ Setting the values as None causes no change to be made.
+       #~ """
+    #~ def __init_( self, newstring, restartLoc ):
+        #~ self.newParseText = newstring
+        #~ self.reparseLoc = restartLoc
+
+class RecursiveGrammarException(Exception):
+    """exception thrown by L{ParserElement.validate} if the grammar could be improperly recursive"""
+    def __init__( self, parseElementList ):
+        self.parseElementTrace = parseElementList
+
+    def __str__( self ):
+        return "RecursiveGrammarException: %s" % self.parseElementTrace
+
+class _ParseResultsWithOffset(object):
+    def __init__(self,p1,p2):
+        self.tup = (p1,p2)
+    def __getitem__(self,i):
+        return self.tup[i]
+    def __repr__(self):
+        return repr(self.tup[0])
+    def setOffset(self,i):
+        self.tup = (self.tup[0],i)
+
+class ParseResults(object):
+    """
+    Structured parse results, to provide multiple means of access to the parsed data:
+       - as a list (C{len(results)})
+       - by list index (C{results[0], results[1]}, etc.)
+       - by attribute (C{results.<resultsName>} - see L{ParserElement.setResultsName})
+
+    Example::
+        integer = Word(nums)
+        date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+        # equivalent form:
+        # date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+
+        # parseString returns a ParseResults object
+        result = date_str.parseString("1999/12/31")
+
+        def test(s, fn=repr):
+            print("%s -> %s" % (s, fn(eval(s))))
+        test("list(result)")
+        test("result[0]")
+        test("result['month']")
+        test("result.day")
+        test("'month' in result")
+        test("'minutes' in result")
+        test("result.dump()", str)
+    prints::
+        list(result) -> ['1999', '/', '12', '/', '31']
+        result[0] -> '1999'
+        result['month'] -> '12'
+        result.day -> '31'
+        'month' in result -> True
+        'minutes' in result -> False
+        result.dump() -> ['1999', '/', '12', '/', '31']
+        - day: 31
+        - month: 12
+        - year: 1999
+    """
+    def __new__(cls, toklist=None, name=None, asList=True, modal=True ):
+        if isinstance(toklist, cls):
+            return toklist
+        retobj = object.__new__(cls)
+        retobj.__doinit = True
+        return retobj
+
+    # Performance tuning: we construct a *lot* of these, so keep this
+    # constructor as small and fast as possible
+    def __init__( self, toklist=None, name=None, asList=True, modal=True, isinstance=isinstance ):
+        if self.__doinit:
+            self.__doinit = False
+            self.__name = None
+            self.__parent = None
+            self.__accumNames = {}
+            self.__asList = asList
+            self.__modal = modal
+            if toklist is None:
+                toklist = []
+            if isinstance(toklist, list):
+                self.__toklist = toklist[:]
+            elif isinstance(toklist, _generatorType):
+                self.__toklist = list(toklist)
+            else:
+                self.__toklist = [toklist]
+            self.__tokdict = dict()
+
+        if name is not None and name:
+            if not modal:
+                self.__accumNames[name] = 0
+            if isinstance(name,int):
+                name = _ustr(name) # will always return a str, but use _ustr for consistency
+            self.__name = name
+            if not (isinstance(toklist, (type(None), basestring, list)) and toklist in (None,'',[])):
+                if isinstance(toklist,basestring):
+                    toklist = [ toklist ]
+                if asList:
+                    if isinstance(toklist,ParseResults):
+                        self[name] = _ParseResultsWithOffset(toklist.copy(),0)
+                    else:
+                        self[name] = _ParseResultsWithOffset(ParseResults(toklist[0]),0)
+                    self[name].__name = name
+                else:
+                    try:
+                        self[name] = toklist[0]
+                    except (KeyError,TypeError,IndexError):
+                        self[name] = toklist
+
+    def __getitem__( self, i ):
+        if isinstance( i, (int,slice) ):
+            return self.__toklist[i]
+        else:
+            if i not in self.__accumNames:
+                return self.__tokdict[i][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[i] ])
+
+    def __setitem__( self, k, v, isinstance=isinstance ):
+        if isinstance(v,_ParseResultsWithOffset):
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [v]
+            sub = v[0]
+        elif isinstance(k,(int,slice)):
+            self.__toklist[k] = v
+            sub = v
+        else:
+            self.__tokdict[k] = self.__tokdict.get(k,list()) + [_ParseResultsWithOffset(v,0)]
+            sub = v
+        if isinstance(sub,ParseResults):
+            sub.__parent = wkref(self)
+
+    def __delitem__( self, i ):
+        if isinstance(i,(int,slice)):
+            mylen = len( self.__toklist )
+            del self.__toklist[i]
+
+            # convert int to slice
+            if isinstance(i, int):
+                if i < 0:
+                    i += mylen
+                i = slice(i, i+1)
+            # get removed indices
+            removed = list(range(*i.indices(mylen)))
+            removed.reverse()
+            # fixup indices in token dictionary
+            for name,occurrences in self.__tokdict.items():
+                for j in removed:
+                    for k, (value, position) in enumerate(occurrences):
+                        occurrences[k] = _ParseResultsWithOffset(value, position - (position > j))
+        else:
+            del self.__tokdict[i]
+
+    def __contains__( self, k ):
+        return k in self.__tokdict
+
+    def __len__( self ): return len( self.__toklist )
+    def __bool__(self): return ( not not self.__toklist )
+    __nonzero__ = __bool__
+    def __iter__( self ): return iter( self.__toklist )
+    def __reversed__( self ): return iter( self.__toklist[::-1] )
+    def _iterkeys( self ):
+        if hasattr(self.__tokdict, "iterkeys"):
+            return self.__tokdict.iterkeys()
+        else:
+            return iter(self.__tokdict)
+
+    def _itervalues( self ):
+        return (self[k] for k in self._iterkeys())
+            
+    def _iteritems( self ):
+        return ((k, self[k]) for k in self._iterkeys())
+
+    if PY_3:
+        keys = _iterkeys       
+        """Returns an iterator of all named result keys (Python 3.x only)."""
+
+        values = _itervalues
+        """Returns an iterator of all named result values (Python 3.x only)."""
+
+        items = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 3.x only)."""
+
+    else:
+        iterkeys = _iterkeys
+        """Returns an iterator of all named result keys (Python 2.x only)."""
+
+        itervalues = _itervalues
+        """Returns an iterator of all named result values (Python 2.x only)."""
+
+        iteritems = _iteritems
+        """Returns an iterator of all named result key-value tuples (Python 2.x only)."""
+
+        def keys( self ):
+            """Returns all named result keys (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iterkeys())
+
+        def values( self ):
+            """Returns all named result values (as a list in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.itervalues())
+                
+        def items( self ):
+            """Returns all named result key-values (as a list of tuples in Python 2.x, as an iterator in Python 3.x)."""
+            return list(self.iteritems())
+
+    def haskeys( self ):
+        """Since keys() returns an iterator, this method is helpful in bypassing
+           code that looks for the existence of any defined results names."""
+        return bool(self.__tokdict)
+        
+    def pop( self, *args, **kwargs):
+        """
+        Removes and returns item at specified index (default=C{last}).
+        Supports both C{list} and C{dict} semantics for C{pop()}. If passed no
+        argument or an integer argument, it will use C{list} semantics
+        and pop tokens from the list of parsed tokens. If passed a 
+        non-integer argument (most likely a string), it will use C{dict}
+        semantics and pop the corresponding value from any defined 
+        results names. A second default return value argument is 
+        supported, just as in C{dict.pop()}.
+
+        Example::
+            def remove_first(tokens):
+                tokens.pop(0)
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            print(OneOrMore(Word(nums)).addParseAction(remove_first).parseString("0 123 321")) # -> ['123', '321']
+
+            label = Word(alphas)
+            patt = label("LABEL") + OneOrMore(Word(nums))
+            print(patt.parseString("AAB 123 321").dump())
+
+            # Use pop() in a parse action to remove named result (note that corresponding value is not
+            # removed from list form of results)
+            def remove_LABEL(tokens):
+                tokens.pop("LABEL")
+                return tokens
+            patt.addParseAction(remove_LABEL)
+            print(patt.parseString("AAB 123 321").dump())
+        prints::
+            ['AAB', '123', '321']
+            - LABEL: AAB
+
+            ['AAB', '123', '321']
+        """
+        if not args:
+            args = [-1]
+        for k,v in kwargs.items():
+            if k == 'default':
+                args = (args[0], v)
+            else:
+                raise TypeError("pop() got an unexpected keyword argument '%s'" % k)
+        if (isinstance(args[0], int) or 
+                        len(args) == 1 or 
+                        args[0] in self):
+            index = args[0]
+            ret = self[index]
+            del self[index]
+            return ret
+        else:
+            defaultvalue = args[1]
+            return defaultvalue
+
+    def get(self, key, defaultValue=None):
+        """
+        Returns named result matching the given key, or if there is no
+        such name, then returns the given C{defaultValue} or C{None} if no
+        C{defaultValue} is specified.
+
+        Similar to C{dict.get()}.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            result = date_str.parseString("1999/12/31")
+            print(result.get("year")) # -> '1999'
+            print(result.get("hour", "not specified")) # -> 'not specified'
+            print(result.get("hour")) # -> None
+        """
+        if key in self:
+            return self[key]
+        else:
+            return defaultValue
+
+    def insert( self, index, insStr ):
+        """
+        Inserts new element at location index in the list of parsed tokens.
+        
+        Similar to C{list.insert()}.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+
+            # use a parse action to insert the parse location in the front of the parsed results
+            def insert_locn(locn, tokens):
+                tokens.insert(0, locn)
+            print(OneOrMore(Word(nums)).addParseAction(insert_locn).parseString("0 123 321")) # -> [0, '0', '123', '321']
+        """
+        self.__toklist.insert(index, insStr)
+        # fixup indices in token dictionary
+        for name,occurrences in self.__tokdict.items():
+            for k, (value, position) in enumerate(occurrences):
+                occurrences[k] = _ParseResultsWithOffset(value, position + (position > index))
+
+    def append( self, item ):
+        """
+        Add single element to end of ParseResults list of elements.
+
+        Example::
+            print(OneOrMore(Word(nums)).parseString("0 123 321")) # -> ['0', '123', '321']
+            
+            # use a parse action to compute the sum of the parsed integers, and add it to the end
+            def append_sum(tokens):
+                tokens.append(sum(map(int, tokens)))
+            print(OneOrMore(Word(nums)).addParseAction(append_sum).parseString("0 123 321")) # -> ['0', '123', '321', 444]
+        """
+        self.__toklist.append(item)
+
+    def extend( self, itemseq ):
+        """
+        Add sequence of elements to end of ParseResults list of elements.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            
+            # use a parse action to append the reverse of the matched strings, to make a palindrome
+            def make_palindrome(tokens):
+                tokens.extend(reversed([t[::-1] for t in tokens]))
+                return ''.join(tokens)
+            print(patt.addParseAction(make_palindrome).parseString("lskdj sdlkjf lksd")) # -> 'lskdjsdlkjflksddsklfjkldsjdksl'
+        """
+        if isinstance(itemseq, ParseResults):
+            self += itemseq
+        else:
+            self.__toklist.extend(itemseq)
+
+    def clear( self ):
+        """
+        Clear all elements and results names.
+        """
+        del self.__toklist[:]
+        self.__tokdict.clear()
+
+    def __getattr__( self, name ):
+        try:
+            return self[name]
+        except KeyError:
+            return ""
+            
+        if name in self.__tokdict:
+            if name not in self.__accumNames:
+                return self.__tokdict[name][-1][0]
+            else:
+                return ParseResults([ v[0] for v in self.__tokdict[name] ])
+        else:
+            return ""
+
+    def __add__( self, other ):
+        ret = self.copy()
+        ret += other
+        return ret
+
+    def __iadd__( self, other ):
+        if other.__tokdict:
+            offset = len(self.__toklist)
+            addoffset = lambda a: offset if a<0 else a+offset
+            otheritems = other.__tokdict.items()
+            otherdictitems = [(k, _ParseResultsWithOffset(v[0],addoffset(v[1])) )
+                                for (k,vlist) in otheritems for v in vlist]
+            for k,v in otherdictitems:
+                self[k] = v
+                if isinstance(v[0],ParseResults):
+                    v[0].__parent = wkref(self)
+            
+        self.__toklist += other.__toklist
+        self.__accumNames.update( other.__accumNames )
+        return self
+
+    def __radd__(self, other):
+        if isinstance(other,int) and other == 0:
+            # useful for merging many ParseResults using sum() builtin
+            return self.copy()
+        else:
+            # this may raise a TypeError - so be it
+            return other + self
+        
+    def __repr__( self ):
+        return "(%s, %s)" % ( repr( self.__toklist ), repr( self.__tokdict ) )
+
+    def __str__( self ):
+        return '[' + ', '.join(_ustr(i) if isinstance(i, ParseResults) else repr(i) for i in self.__toklist) + ']'
+
+    def _asStringList( self, sep='' ):
+        out = []
+        for item in self.__toklist:
+            if out and sep:
+                out.append(sep)
+            if isinstance( item, ParseResults ):
+                out += item._asStringList()
+            else:
+                out.append( _ustr(item) )
+        return out
+
+    def asList( self ):
+        """
+        Returns the parse results as a nested list of matching tokens, all converted to strings.
+
+        Example::
+            patt = OneOrMore(Word(alphas))
+            result = patt.parseString("sldkj lsdkj sldkj")
+            # even though the result prints in string-like form, it is actually a pyparsing ParseResults
+            print(type(result), result) # -> <class 'pyparsing.ParseResults'> ['sldkj', 'lsdkj', 'sldkj']
+            
+            # Use asList() to create an actual list
+            result_list = result.asList()
+            print(type(result_list), result_list) # -> <class 'list'> ['sldkj', 'lsdkj', 'sldkj']
+        """
+        return [res.asList() if isinstance(res,ParseResults) else res for res in self.__toklist]
+
+    def asDict( self ):
+        """
+        Returns the named parse results as a nested dictionary.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(type(result), repr(result)) # -> <class 'pyparsing.ParseResults'> (['12', '/', '31', '/', '1999'], {'day': [('1999', 4)], 'year': [('12', 0)], 'month': [('31', 2)]})
+            
+            result_dict = result.asDict()
+            print(type(result_dict), repr(result_dict)) # -> <class 'dict'> {'day': '1999', 'year': '12', 'month': '31'}
+
+            # even though a ParseResults supports dict-like access, sometime you just need to have a dict
+            import json
+            print(json.dumps(result)) # -> Exception: TypeError: ... is not JSON serializable
+            print(json.dumps(result.asDict())) # -> {"month": "31", "day": "1999", "year": "12"}
+        """
+        if PY_3:
+            item_fn = self.items
+        else:
+            item_fn = self.iteritems
+            
+        def toItem(obj):
+            if isinstance(obj, ParseResults):
+                if obj.haskeys():
+                    return obj.asDict()
+                else:
+                    return [toItem(v) for v in obj]
+            else:
+                return obj
+                
+        return dict((k,toItem(v)) for k,v in item_fn())
+
+    def copy( self ):
+        """
+        Returns a new copy of a C{ParseResults} object.
+        """
+        ret = ParseResults( self.__toklist )
+        ret.__tokdict = self.__tokdict.copy()
+        ret.__parent = self.__parent
+        ret.__accumNames.update( self.__accumNames )
+        ret.__name = self.__name
+        return ret
+
+    def asXML( self, doctag=None, namedItemsOnly=False, indent="", formatted=True ):
+        """
+        (Deprecated) Returns the parse results as XML. Tags are created for tokens and lists that have defined results names.
+        """
+        nl = "\n"
+        out = []
+        namedItems = dict((v[1],k) for (k,vlist) in self.__tokdict.items()
+                                                            for v in vlist)
+        nextLevelIndent = indent + "  "
+
+        # collapse out indents if formatting is not desired
+        if not formatted:
+            indent = ""
+            nextLevelIndent = ""
+            nl = ""
+
+        selfTag = None
+        if doctag is not None:
+            selfTag = doctag
+        else:
+            if self.__name:
+                selfTag = self.__name
+
+        if not selfTag:
+            if namedItemsOnly:
+                return ""
+            else:
+                selfTag = "ITEM"
+
+        out += [ nl, indent, "<", selfTag, ">" ]
+
+        for i,res in enumerate(self.__toklist):
+            if isinstance(res,ParseResults):
+                if i in namedItems:
+                    out += [ res.asXML(namedItems[i],
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+                else:
+                    out += [ res.asXML(None,
+                                        namedItemsOnly and doctag is None,
+                                        nextLevelIndent,
+                                        formatted)]
+            else:
+                # individual token, see if there is a name for it
+                resTag = None
+                if i in namedItems:
+                    resTag = namedItems[i]
+                if not resTag:
+                    if namedItemsOnly:
+                        continue
+                    else:
+                        resTag = "ITEM"
+                xmlBodyText = _xml_escape(_ustr(res))
+                out += [ nl, nextLevelIndent, "<", resTag, ">",
+                                                xmlBodyText,
+                                                "</", resTag, ">" ]
+
+        out += [ nl, indent, "</", selfTag, ">" ]
+        return "".join(out)
+
+    def __lookup(self,sub):
+        for k,vlist in self.__tokdict.items():
+            for v,loc in vlist:
+                if sub is v:
+                    return k
+        return None
+
+    def getName(self):
+        """
+        Returns the results name for this token expression. Useful when several 
+        different expressions might match at a particular location.
+
+        Example::
+            integer = Word(nums)
+            ssn_expr = Regex(r"\d\d\d-\d\d-\d\d\d\d")
+            house_number_expr = Suppress('#') + Word(nums, alphanums)
+            user_data = (Group(house_number_expr)("house_number") 
+                        | Group(ssn_expr)("ssn")
+                        | Group(integer)("age"))
+            user_info = OneOrMore(user_data)
+            
+            result = user_info.parseString("22 111-22-3333 #221B")
+            for item in result:
+                print(item.getName(), ':', item[0])
+        prints::
+            age : 22
+            ssn : 111-22-3333
+            house_number : 221B
+        """
+        if self.__name:
+            return self.__name
+        elif self.__parent:
+            par = self.__parent()
+            if par:
+                return par.__lookup(self)
+            else:
+                return None
+        elif (len(self) == 1 and
+               len(self.__tokdict) == 1 and
+               next(iter(self.__tokdict.values()))[0][1] in (0,-1)):
+            return next(iter(self.__tokdict.keys()))
+        else:
+            return None
+
+    def dump(self, indent='', depth=0, full=True):
+        """
+        Diagnostic method for listing out the contents of a C{ParseResults}.
+        Accepts an optional C{indent} argument so that this string can be embedded
+        in a nested display of other data.
+
+        Example::
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+            
+            result = date_str.parseString('12/31/1999')
+            print(result.dump())
+        prints::
+            ['12', '/', '31', '/', '1999']
+            - day: 1999
+            - month: 31
+            - year: 12
+        """
+        out = []
+        NL = '\n'
+        out.append( indent+_ustr(self.asList()) )
+        if full:
+            if self.haskeys():
+                items = sorted((str(k), v) for k,v in self.items())
+                for k,v in items:
+                    if out:
+                        out.append(NL)
+                    out.append( "%s%s- %s: " % (indent,('  '*depth), k) )
+                    if isinstance(v,ParseResults):
+                        if v:
+                            out.append( v.dump(indent,depth+1) )
+                        else:
+                            out.append(_ustr(v))
+                    else:
+                        out.append(repr(v))
+            elif any(isinstance(vv,ParseResults) for vv in self):
+                v = self
+                for i,vv in enumerate(v):
+                    if isinstance(vv,ParseResults):
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),vv.dump(indent,depth+1) ))
+                    else:
+                        out.append("\n%s%s[%d]:\n%s%s%s" % (indent,('  '*(depth)),i,indent,('  '*(depth+1)),_ustr(vv)))
+            
+        return "".join(out)
+
+    def pprint(self, *args, **kwargs):
+        """
+        Pretty-printer for parsed results as a list, using the C{pprint} module.
+        Accepts additional positional or keyword args as defined for the 
+        C{pprint.pprint} method. (U{http://docs.python.org/3/library/pprint.html#pprint.pprint})
+
+        Example::
+            ident = Word(alphas, alphanums)
+            num = Word(nums)
+            func = Forward()
+            term = ident | num | Group('(' + func + ')')
+            func <<= ident + Group(Optional(delimitedList(term)))
+            result = func.parseString("fna a,b,(fnb c,d,200),100")
+            result.pprint(width=40)
+        prints::
+            ['fna',
+             ['a',
+              'b',
+              ['(', 'fnb', ['c', 'd', '200'], ')'],
+              '100']]
+        """
+        pprint.pprint(self.asList(), *args, **kwargs)
+
+    # add support for pickle protocol
+    def __getstate__(self):
+        return ( self.__toklist,
+                 ( self.__tokdict.copy(),
+                   self.__parent is not None and self.__parent() or None,
+                   self.__accumNames,
+                   self.__name ) )
+
+    def __setstate__(self,state):
+        self.__toklist = state[0]
+        (self.__tokdict,
+         par,
+         inAccumNames,
+         self.__name) = state[1]
+        self.__accumNames = {}
+        self.__accumNames.update(inAccumNames)
+        if par is not None:
+            self.__parent = wkref(par)
+        else:
+            self.__parent = None
+
+    def __getnewargs__(self):
+        return self.__toklist, self.__name, self.__asList, self.__modal
+
+    def __dir__(self):
+        return (dir(type(self)) + list(self.keys()))
+
+collections.MutableMapping.register(ParseResults)
+
+def col (loc,strg):
+    """Returns current column within a string, counting newlines as line separators.
+   The first column is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    s = strg
+    return 1 if 0<loc<len(s) and s[loc-1] == '\n' else loc - s.rfind("\n", 0, loc)
+
+def lineno(loc,strg):
+    """Returns current line number within a string, counting newlines as line separators.
+   The first line is number 1.
+
+   Note: the default parsing behavior is to expand tabs in the input string
+   before starting the parsing process.  See L{I{ParserElement.parseString}<ParserElement.parseString>} for more information
+   on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+   consistent view of the parsed string, the parse location, and line and column
+   positions within the parsed string.
+   """
+    return strg.count("\n",0,loc) + 1
+
+def line( loc, strg ):
+    """Returns the line of text containing loc within a string, counting newlines as line separators.
+       """
+    lastCR = strg.rfind("\n", 0, loc)
+    nextCR = strg.find("\n", loc)
+    if nextCR >= 0:
+        return strg[lastCR+1:nextCR]
+    else:
+        return strg[lastCR+1:]
+
+def _defaultStartDebugAction( instring, loc, expr ):
+    print (("Match " + _ustr(expr) + " at loc " + _ustr(loc) + "(%d,%d)" % ( lineno(loc,instring), col(loc,instring) )))
+
+def _defaultSuccessDebugAction( instring, startloc, endloc, expr, toks ):
+    print ("Matched " + _ustr(expr) + " -> " + str(toks.asList()))
+
+def _defaultExceptionDebugAction( instring, loc, expr, exc ):
+    print ("Exception raised:" + _ustr(exc))
+
+def nullDebugAction(*args):
+    """'Do-nothing' debug action, to suppress debugging output during parsing."""
+    pass
+
+# Only works on Python 3.x - nonlocal is toxic to Python 2 installs
+#~ 'decorator to trim function calls to match the arity of the target'
+#~ def _trim_arity(func, maxargs=3):
+    #~ if func in singleArgBuiltins:
+        #~ return lambda s,l,t: func(t)
+    #~ limit = 0
+    #~ foundArity = False
+    #~ def wrapper(*args):
+        #~ nonlocal limit,foundArity
+        #~ while 1:
+            #~ try:
+                #~ ret = func(*args[limit:])
+                #~ foundArity = True
+                #~ return ret
+            #~ except TypeError:
+                #~ if limit == maxargs or foundArity:
+                    #~ raise
+                #~ limit += 1
+                #~ continue
+    #~ return wrapper
+
+# this version is Python 2.x-3.x cross-compatible
+'decorator to trim function calls to match the arity of the target'
+def _trim_arity(func, maxargs=2):
+    if func in singleArgBuiltins:
+        return lambda s,l,t: func(t)
+    limit = [0]
+    foundArity = [False]
+    
+    # traceback return data structure changed in Py3.5 - normalize back to plain tuples
+    if system_version[:2] >= (3,5):
+        def extract_stack(limit=0):
+            # special handling for Python 3.5.0 - extra deep call stack by 1
+            offset = -3 if system_version == (3,5,0) else -2
+            frame_summary = traceback.extract_stack(limit=-offset+limit-1)[offset]
+            return [(frame_summary.filename, frame_summary.lineno)]
+        def extract_tb(tb, limit=0):
+            frames = traceback.extract_tb(tb, limit=limit)
+            frame_summary = frames[-1]
+            return [(frame_summary.filename, frame_summary.lineno)]
+    else:
+        extract_stack = traceback.extract_stack
+        extract_tb = traceback.extract_tb
+    
+    # synthesize what would be returned by traceback.extract_stack at the call to 
+    # user's parse action 'func', so that we don't incur call penalty at parse time
+    
+    LINE_DIFF = 6
+    # IF ANY CODE CHANGES, EVEN JUST COMMENTS OR BLANK LINES, BETWEEN THE NEXT LINE AND 
+    # THE CALL TO FUNC INSIDE WRAPPER, LINE_DIFF MUST BE MODIFIED!!!!
+    this_line = extract_stack(limit=2)[-1]
+    pa_call_line_synth = (this_line[0], this_line[1]+LINE_DIFF)
+
+    def wrapper(*args):
+        while 1:
+            try:
+                ret = func(*args[limit[0]:])
+                foundArity[0] = True
+                return ret
+            except TypeError:
+                # re-raise TypeErrors if they did not come from our arity testing
+                if foundArity[0]:
+                    raise
+                else:
+                    try:
+                        tb = sys.exc_info()[-1]
+                        if not extract_tb(tb, limit=2)[-1][:2] == pa_call_line_synth:
+                            raise
+                    finally:
+                        del tb
+
+                if limit[0] <= maxargs:
+                    limit[0] += 1
+                    continue
+                raise
+
+    # copy func name to wrapper for sensible debug output
+    func_name = "<parse action>"
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    wrapper.__name__ = func_name
+
+    return wrapper
+
+class ParserElement(object):
+    """Abstract base level parser element class."""
+    DEFAULT_WHITE_CHARS = " \n\t\r"
+    verbose_stacktrace = False
+
+    @staticmethod
+    def setDefaultWhitespaceChars( chars ):
+        r"""
+        Overrides the default whitespace chars
+
+        Example::
+            # default whitespace chars are space, <TAB> and newline
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def', 'ghi', 'jkl']
+            
+            # change to just treat newline as significant
+            ParserElement.setDefaultWhitespaceChars(" \t")
+            OneOrMore(Word(alphas)).parseString("abc def\nghi jkl")  # -> ['abc', 'def']
+        """
+        ParserElement.DEFAULT_WHITE_CHARS = chars
+
+    @staticmethod
+    def inlineLiteralsUsing(cls):
+        """
+        Set class to be used for inclusion of string literals into a parser.
+        
+        Example::
+            # default literal class used is Literal
+            integer = Word(nums)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+
+            # change to Suppress
+            ParserElement.inlineLiteralsUsing(Suppress)
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")           
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '12', '31']
+        """
+        ParserElement._literalStringClass = cls
+
+    def __init__( self, savelist=False ):
+        self.parseAction = list()
+        self.failAction = None
+        #~ self.name = "<unknown>"  # don't define self.name, let subclasses try/except upcall
+        self.strRepr = None
+        self.resultsName = None
+        self.saveAsList = savelist
+        self.skipWhitespace = True
+        self.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        self.copyDefaultWhiteChars = True
+        self.mayReturnEmpty = False # used when checking for left-recursion
+        self.keepTabs = False
+        self.ignoreExprs = list()
+        self.debug = False
+        self.streamlined = False
+        self.mayIndexError = True # used to optimize exception handling for subclasses that don't advance parse index
+        self.errmsg = ""
+        self.modalResults = True # used to mark results names as modal (report only last) or cumulative (list all)
+        self.debugActions = ( None, None, None ) #custom debug actions
+        self.re = None
+        self.callPreparse = True # used to avoid redundant calls to preParse
+        self.callDuringTry = False
+
+    def copy( self ):
+        """
+        Make a copy of this C{ParserElement}.  Useful for defining different parse actions
+        for the same parsing pattern, using copies of the original parse element.
+        
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            integerK = integer.copy().addParseAction(lambda toks: toks[0]*1024) + Suppress("K")
+            integerM = integer.copy().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+            
+            print(OneOrMore(integerK | integerM | integer).parseString("5K 100 640K 256M"))
+        prints::
+            [5120, 100, 655360, 268435456]
+        Equivalent form of C{expr.copy()} is just C{expr()}::
+            integerM = integer().addParseAction(lambda toks: toks[0]*1024*1024) + Suppress("M")
+        """
+        cpy = copy.copy( self )
+        cpy.parseAction = self.parseAction[:]
+        cpy.ignoreExprs = self.ignoreExprs[:]
+        if self.copyDefaultWhiteChars:
+            cpy.whiteChars = ParserElement.DEFAULT_WHITE_CHARS
+        return cpy
+
+    def setName( self, name ):
+        """
+        Define name for this expression, makes debugging and exception messages clearer.
+        
+        Example::
+            Word(nums).parseString("ABC")  # -> Exception: Expected W:(0123...) (at char 0), (line:1, col:1)
+            Word(nums).setName("integer").parseString("ABC")  # -> Exception: Expected integer (at char 0), (line:1, col:1)
+        """
+        self.name = name
+        self.errmsg = "Expected " + self.name
+        if hasattr(self,"exception"):
+            self.exception.msg = self.errmsg
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        """
+        Define name for referencing matching tokens as a nested attribute
+        of the returned parse results.
+        NOTE: this returns a *copy* of the original C{ParserElement} object;
+        this is so that the client can define a basic element, such as an
+        integer, and reference it in multiple places with different names.
+
+        You can also set results names using the abbreviated syntax,
+        C{expr("name")} in place of C{expr.setResultsName("name")} - 
+        see L{I{__call__}<__call__>}.
+
+        Example::
+            date_str = (integer.setResultsName("year") + '/' 
+                        + integer.setResultsName("month") + '/' 
+                        + integer.setResultsName("day"))
+
+            # equivalent form:
+            date_str = integer("year") + '/' + integer("month") + '/' + integer("day")
+        """
+        newself = self.copy()
+        if name.endswith("*"):
+            name = name[:-1]
+            listAllMatches=True
+        newself.resultsName = name
+        newself.modalResults = not listAllMatches
+        return newself
+
+    def setBreak(self,breakFlag = True):
+        """Method to invoke the Python pdb debugger when this element is
+           about to be parsed. Set C{breakFlag} to True to enable, False to
+           disable.
+        """
+        if breakFlag:
+            _parseMethod = self._parse
+            def breaker(instring, loc, doActions=True, callPreParse=True):
+                import pdb
+                pdb.set_trace()
+                return _parseMethod( instring, loc, doActions, callPreParse )
+            breaker._originalParseMethod = _parseMethod
+            self._parse = breaker
+        else:
+            if hasattr(self._parse,"_originalParseMethod"):
+                self._parse = self._parse._originalParseMethod
+        return self
+
+    def setParseAction( self, *fns, **kwargs ):
+        """
+        Define action to perform when successfully matching parse element definition.
+        Parse action fn is a callable method with 0-3 arguments, called as C{fn(s,loc,toks)},
+        C{fn(loc,toks)}, C{fn(toks)}, or just C{fn()}, where:
+         - s   = the original string being parsed (see note below)
+         - loc = the location of the matching substring
+         - toks = a list of the matched tokens, packaged as a C{L{ParseResults}} object
+        If the functions in fns modify the tokens, they can return them as the return
+        value from fn, and the modified list of tokens will replace the original.
+        Otherwise, fn does not need to return any value.
+
+        Optional keyword arguments:
+         - callDuringTry = (default=C{False}) indicate if parse action should be run during lookaheads and alternate testing
+
+        Note: the default parsing behavior is to expand tabs in the input string
+        before starting the parsing process.  See L{I{parseString}<parseString>} for more information
+        on parsing strings containing C{<TAB>}s, and suggested methods to maintain a
+        consistent view of the parsed string, the parse location, and line and column
+        positions within the parsed string.
+        
+        Example::
+            integer = Word(nums)
+            date_str = integer + '/' + integer + '/' + integer
+
+            date_str.parseString("1999/12/31")  # -> ['1999', '/', '12', '/', '31']
+
+            # use parse action to convert to ints at parse time
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            date_str = integer + '/' + integer + '/' + integer
+
+            # note that integer fields are now ints, not strings
+            date_str.parseString("1999/12/31")  # -> [1999, '/', 12, '/', 31]
+        """
+        self.parseAction = list(map(_trim_arity, list(fns)))
+        self.callDuringTry = kwargs.get("callDuringTry", False)
+        return self
+
+    def addParseAction( self, *fns, **kwargs ):
+        """
+        Add parse action to expression's list of parse actions. See L{I{setParseAction}<setParseAction>}.
+        
+        See examples in L{I{copy}<copy>}.
+        """
+        self.parseAction += list(map(_trim_arity, list(fns)))
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def addCondition(self, *fns, **kwargs):
+        """Add a boolean predicate function to expression's list of parse actions. See 
+        L{I{setParseAction}<setParseAction>} for function call signatures. Unlike C{setParseAction}, 
+        functions passed to C{addCondition} need to return boolean success/fail of the condition.
+
+        Optional keyword arguments:
+         - message = define a custom message to be used in the raised exception
+         - fatal   = if True, will raise ParseFatalException to stop parsing immediately; otherwise will raise ParseException
+         
+        Example::
+            integer = Word(nums).setParseAction(lambda toks: int(toks[0]))
+            year_int = integer.copy()
+            year_int.addCondition(lambda toks: toks[0] >= 2000, message="Only support years 2000 and later")
+            date_str = year_int + '/' + integer + '/' + integer
+
+            result = date_str.parseString("1999/12/31")  # -> Exception: Only support years 2000 and later (at char 0), (line:1, col:1)
+        """
+        msg = kwargs.get("message", "failed user-defined condition")
+        exc_type = ParseFatalException if kwargs.get("fatal", False) else ParseException
+        for fn in fns:
+            def pa(s,l,t):
+                if not bool(_trim_arity(fn)(s,l,t)):
+                    raise exc_type(s,l,msg)
+            self.parseAction.append(pa)
+        self.callDuringTry = self.callDuringTry or kwargs.get("callDuringTry", False)
+        return self
+
+    def setFailAction( self, fn ):
+        """Define action to perform if parsing fails at this expression.
+           Fail acton fn is a callable function that takes the arguments
+           C{fn(s,loc,expr,err)} where:
+            - s = string being parsed
+            - loc = location where expression match was attempted and failed
+            - expr = the parse expression that failed
+            - err = the exception thrown
+           The function returns no value.  It may throw C{L{ParseFatalException}}
+           if it is desired to stop parsing immediately."""
+        self.failAction = fn
+        return self
+
+    def _skipIgnorables( self, instring, loc ):
+        exprsFound = True
+        while exprsFound:
+            exprsFound = False
+            for e in self.ignoreExprs:
+                try:
+                    while 1:
+                        loc,dummy = e._parse( instring, loc )
+                        exprsFound = True
+                except ParseException:
+                    pass
+        return loc
+
+    def preParse( self, instring, loc ):
+        if self.ignoreExprs:
+            loc = self._skipIgnorables( instring, loc )
+
+        if self.skipWhitespace:
+            wt = self.whiteChars
+            instrlen = len(instring)
+            while loc < instrlen and instring[loc] in wt:
+                loc += 1
+
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        return loc, []
+
+    def postParse( self, instring, loc, tokenlist ):
+        return tokenlist
+
+    #~ @profile
+    def _parseNoCache( self, instring, loc, doActions=True, callPreParse=True ):
+        debugging = ( self.debug ) #and doActions )
+
+        if debugging or self.failAction:
+            #~ print ("Match",self,"at loc",loc,"(%d,%d)" % ( lineno(loc,instring), col(loc,instring) ))
+            if (self.debugActions[0] ):
+                self.debugActions[0]( instring, loc, self )
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            try:
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            except ParseBaseException as err:
+                #~ print ("Exception raised:", err)
+                if self.debugActions[2]:
+                    self.debugActions[2]( instring, tokensStart, self, err )
+                if self.failAction:
+                    self.failAction( instring, tokensStart, self, err )
+                raise
+        else:
+            if callPreParse and self.callPreparse:
+                preloc = self.preParse( instring, loc )
+            else:
+                preloc = loc
+            tokensStart = preloc
+            if self.mayIndexError or loc >= len(instring):
+                try:
+                    loc,tokens = self.parseImpl( instring, preloc, doActions )
+                except IndexError:
+                    raise ParseException( instring, len(instring), self.errmsg, self )
+            else:
+                loc,tokens = self.parseImpl( instring, preloc, doActions )
+
+        tokens = self.postParse( instring, loc, tokens )
+
+        retTokens = ParseResults( tokens, self.resultsName, asList=self.saveAsList, modal=self.modalResults )
+        if self.parseAction and (doActions or self.callDuringTry):
+            if debugging:
+                try:
+                    for fn in self.parseAction:
+                        tokens = fn( instring, tokensStart, retTokens )
+                        if tokens is not None:
+                            retTokens = ParseResults( tokens,
+                                                      self.resultsName,
+                                                      asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                      modal=self.modalResults )
+                except ParseBaseException as err:
+                    #~ print "Exception raised in user parse action:", err
+                    if (self.debugActions[2] ):
+                        self.debugActions[2]( instring, tokensStart, self, err )
+                    raise
+            else:
+                for fn in self.parseAction:
+                    tokens = fn( instring, tokensStart, retTokens )
+                    if tokens is not None:
+                        retTokens = ParseResults( tokens,
+                                                  self.resultsName,
+                                                  asList=self.saveAsList and isinstance(tokens,(ParseResults,list)),
+                                                  modal=self.modalResults )
+
+        if debugging:
+            #~ print ("Matched",self,"->",retTokens.asList())
+            if (self.debugActions[1] ):
+                self.debugActions[1]( instring, tokensStart, loc, self, retTokens )
+
+        return loc, retTokens
+
+    def tryParse( self, instring, loc ):
+        try:
+            return self._parse( instring, loc, doActions=False )[0]
+        except ParseFatalException:
+            raise ParseException( instring, loc, self.errmsg, self)
+    
+    def canParseNext(self, instring, loc):
+        try:
+            self.tryParse(instring, loc)
+        except (ParseException, IndexError):
+            return False
+        else:
+            return True
+
+    class _UnboundedCache(object):
+        def __init__(self):
+            cache = {}
+            self.not_in_cache = not_in_cache = object()
+
+            def get(self, key):
+                return cache.get(key, not_in_cache)
+
+            def set(self, key, value):
+                cache[key] = value
+
+            def clear(self):
+                cache.clear()
+
+            self.get = types.MethodType(get, self)
+            self.set = types.MethodType(set, self)
+            self.clear = types.MethodType(clear, self)
+
+    if _OrderedDict is not None:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = _OrderedDict()
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.popitem(False)
+
+                def clear(self):
+                    cache.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    else:
+        class _FifoCache(object):
+            def __init__(self, size):
+                self.not_in_cache = not_in_cache = object()
+
+                cache = {}
+                key_fifo = collections.deque([], size)
+
+                def get(self, key):
+                    return cache.get(key, not_in_cache)
+
+                def set(self, key, value):
+                    cache[key] = value
+                    if len(cache) > size:
+                        cache.pop(key_fifo.popleft(), None)
+                    key_fifo.append(key)
+
+                def clear(self):
+                    cache.clear()
+                    key_fifo.clear()
+
+                self.get = types.MethodType(get, self)
+                self.set = types.MethodType(set, self)
+                self.clear = types.MethodType(clear, self)
+
+    # argument cache for optimizing repeated calls when backtracking through recursive expressions
+    packrat_cache = {} # this is set later by enabledPackrat(); this is here so that resetCache() doesn't fail
+    packrat_cache_lock = RLock()
+    packrat_cache_stats = [0, 0]
+
+    # this method gets repeatedly called during backtracking with the same arguments -
+    # we can cache these arguments and save ourselves the trouble of re-parsing the contained expression
+    def _parseCache( self, instring, loc, doActions=True, callPreParse=True ):
+        HIT, MISS = 0, 1
+        lookup = (self, instring, loc, callPreParse, doActions)
+        with ParserElement.packrat_cache_lock:
+            cache = ParserElement.packrat_cache
+            value = cache.get(lookup)
+            if value is cache.not_in_cache:
+                ParserElement.packrat_cache_stats[MISS] += 1
+                try:
+                    value = self._parseNoCache(instring, loc, doActions, callPreParse)
+                except ParseBaseException as pe:
+                    # cache a copy of the exception, without the traceback
+                    cache.set(lookup, pe.__class__(*pe.args))
+                    raise
+                else:
+                    cache.set(lookup, (value[0], value[1].copy()))
+                    return value
+            else:
+                ParserElement.packrat_cache_stats[HIT] += 1
+                if isinstance(value, Exception):
+                    raise value
+                return (value[0], value[1].copy())
+
+    _parse = _parseNoCache
+
+    @staticmethod
+    def resetCache():
+        ParserElement.packrat_cache.clear()
+        ParserElement.packrat_cache_stats[:] = [0] * len(ParserElement.packrat_cache_stats)
+
+    _packratEnabled = False
+    @staticmethod
+    def enablePackrat(cache_size_limit=128):
+        """Enables "packrat" parsing, which adds memoizing to the parsing logic.
+           Repeated parse attempts at the same string location (which happens
+           often in many complex grammars) can immediately return a cached value,
+           instead of re-executing parsing/validating code.  Memoizing is done of
+           both valid results and parsing exceptions.
+           
+           Parameters:
+            - cache_size_limit - (default=C{128}) - if an integer value is provided
+              will limit the size of the packrat cache; if None is passed, then
+              the cache size will be unbounded; if 0 is passed, the cache will
+              be effectively disabled.
+            
+           This speedup may break existing programs that use parse actions that
+           have side-effects.  For this reason, packrat parsing is disabled when
+           you first import pyparsing.  To activate the packrat feature, your
+           program must call the class method C{ParserElement.enablePackrat()}.  If
+           your program uses C{psyco} to "compile as you go", you must call
+           C{enablePackrat} before calling C{psyco.full()}.  If you do not do this,
+           Python will crash.  For best results, call C{enablePackrat()} immediately
+           after importing pyparsing.
+           
+           Example::
+               import pyparsing
+               pyparsing.ParserElement.enablePackrat()
+        """
+        if not ParserElement._packratEnabled:
+            ParserElement._packratEnabled = True
+            if cache_size_limit is None:
+                ParserElement.packrat_cache = ParserElement._UnboundedCache()
+            else:
+                ParserElement.packrat_cache = ParserElement._FifoCache(cache_size_limit)
+            ParserElement._parse = ParserElement._parseCache
+
+    def parseString( self, instring, parseAll=False ):
+        """
+        Execute the parse expression with the given string.
+        This is the main interface to the client code, once the complete
+        expression has been built.
+
+        If you want the grammar to require that the entire input string be
+        successfully parsed, then set C{parseAll} to True (equivalent to ending
+        the grammar with C{L{StringEnd()}}).
+
+        Note: C{parseString} implicitly calls C{expandtabs()} on the input string,
+        in order to report proper column numbers in parse actions.
+        If the input string contains tabs and
+        the grammar uses parse actions that use the C{loc} argument to index into the
+        string being parsed, you can ensure you have a consistent view of the input
+        string by:
+         - calling C{parseWithTabs} on your grammar before calling C{parseString}
+           (see L{I{parseWithTabs}<parseWithTabs>})
+         - define your parse action using the full C{(s,loc,toks)} signature, and
+           reference the input string using the parse action's C{s} argument
+         - explictly expand the tabs in your input string before calling
+           C{parseString}
+        
+        Example::
+            Word('a').parseString('aaaaabaaa')  # -> ['aaaaa']
+            Word('a').parseString('aaaaabaaa', parseAll=True)  # -> Exception: Expected end of text
+        """
+        ParserElement.resetCache()
+        if not self.streamlined:
+            self.streamline()
+            #~ self.saveAsList = True
+        for e in self.ignoreExprs:
+            e.streamline()
+        if not self.keepTabs:
+            instring = instring.expandtabs()
+        try:
+            loc, tokens = self._parse( instring, 0 )
+            if parseAll:
+                loc = self.preParse( instring, loc )
+                se = Empty() + StringEnd()
+                se._parse( instring, loc )
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+        else:
+            return tokens
+
+    def scanString( self, instring, maxMatches=_MAX_INT, overlap=False ):
+        """
+        Scan the input string for expression matches.  Each match will return the
+        matching tokens, start location, and end location.  May be called with optional
+        C{maxMatches} argument, to clip scanning after 'n' matches are found.  If
+        C{overlap} is specified, then overlapping matches will be reported.
+
+        Note that the start and end locations are reported relative to the string
+        being parsed.  See L{I{parseString}<parseString>} for more information on parsing
+        strings with embedded tabs.
+
+        Example::
+            source = "sldjf123lsdjjkf345sldkjf879lkjsfd987"
+            print(source)
+            for tokens,start,end in Word(alphas).scanString(source):
+                print(' '*start + '^'*(end-start))
+                print(' '*start + tokens[0])
+        
+        prints::
+        
+            sldjf123lsdjjkf345sldkjf879lkjsfd987
+            ^^^^^
+            sldjf
+                    ^^^^^^^
+                    lsdjjkf
+                              ^^^^^^
+                              sldkjf
+                                       ^^^^^^
+                                       lkjsfd
+        """
+        if not self.streamlined:
+            self.streamline()
+        for e in self.ignoreExprs:
+            e.streamline()
+
+        if not self.keepTabs:
+            instring = _ustr(instring).expandtabs()
+        instrlen = len(instring)
+        loc = 0
+        preparseFn = self.preParse
+        parseFn = self._parse
+        ParserElement.resetCache()
+        matches = 0
+        try:
+            while loc <= instrlen and matches < maxMatches:
+                try:
+                    preloc = preparseFn( instring, loc )
+                    nextLoc,tokens = parseFn( instring, preloc, callPreParse=False )
+                except ParseException:
+                    loc = preloc+1
+                else:
+                    if nextLoc > loc:
+                        matches += 1
+                        yield tokens, preloc, nextLoc
+                        if overlap:
+                            nextloc = preparseFn( instring, loc )
+                            if nextloc > loc:
+                                loc = nextLoc
+                            else:
+                                loc += 1
+                        else:
+                            loc = nextLoc
+                    else:
+                        loc = preloc+1
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def transformString( self, instring ):
+        """
+        Extension to C{L{scanString}}, to modify matching text with modified tokens that may
+        be returned from a parse action.  To use C{transformString}, define a grammar and
+        attach a parse action to it that modifies the returned token list.
+        Invoking C{transformString()} on a target string will then scan for matches,
+        and replace the matched text patterns according to the logic in the parse
+        action.  C{transformString()} returns the resulting transformed string.
+        
+        Example::
+            wd = Word(alphas)
+            wd.setParseAction(lambda toks: toks[0].title())
+            
+            print(wd.transformString("now is the winter of our discontent made glorious summer by this sun of york."))
+        Prints::
+            Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York.
+        """
+        out = []
+        lastE = 0
+        # force preservation of <TAB>s, to minimize unwanted transformation of string, and to
+        # keep string locs straight between transformString and scanString
+        self.keepTabs = True
+        try:
+            for t,s,e in self.scanString( instring ):
+                out.append( instring[lastE:s] )
+                if t:
+                    if isinstance(t,ParseResults):
+                        out += t.asList()
+                    elif isinstance(t,list):
+                        out += t
+                    else:
+                        out.append(t)
+                lastE = e
+            out.append(instring[lastE:])
+            out = [o for o in out if o]
+            return "".join(map(_ustr,_flatten(out)))
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def searchString( self, instring, maxMatches=_MAX_INT ):
+        """
+        Another extension to C{L{scanString}}, simplifying the access to the tokens found
+        to match the given parse expression.  May be called with optional
+        C{maxMatches} argument, to clip searching after 'n' matches are found.
+        
+        Example::
+            # a capitalized word starts with an uppercase letter, followed by zero or more lowercase letters
+            cap_word = Word(alphas.upper(), alphas.lower())
+            
+            print(cap_word.searchString("More than Iron, more than Lead, more than Gold I need Electricity"))
+        prints::
+            ['More', 'Iron', 'Lead', 'Gold', 'I']
+        """
+        try:
+            return ParseResults([ t for t,s,e in self.scanString( instring, maxMatches ) ])
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def split(self, instring, maxsplit=_MAX_INT, includeSeparators=False):
+        """
+        Generator method to split a string using the given expression as a separator.
+        May be called with optional C{maxsplit} argument, to limit the number of splits;
+        and the optional C{includeSeparators} argument (default=C{False}), if the separating
+        matching text should be included in the split results.
+        
+        Example::        
+            punc = oneOf(list(".,;:/-!?"))
+            print(list(punc.split("This, this?, this sentence, is badly punctuated!")))
+        prints::
+            ['This', ' this', '', ' this sentence', ' is badly punctuated', '']
+        """
+        splits = 0
+        last = 0
+        for t,s,e in self.scanString(instring, maxMatches=maxsplit):
+            yield instring[last:s]
+            if includeSeparators:
+                yield t[0]
+            last = e
+        yield instring[last:]
+
+    def __add__(self, other ):
+        """
+        Implementation of + operator - returns C{L{And}}. Adding strings to a ParserElement
+        converts them to L{Literal}s by default.
+        
+        Example::
+            greet = Word(alphas) + "," + Word(alphas) + "!"
+            hello = "Hello, World!"
+            print (hello, "->", greet.parseString(hello))
+        Prints::
+            Hello, World! -> ['Hello', ',', 'World', '!']
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, other ] )
+
+    def __radd__(self, other ):
+        """
+        Implementation of + operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other + self
+
+    def __sub__(self, other):
+        """
+        Implementation of - operator, returns C{L{And}} with error stop
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return And( [ self, And._ErrorStop(), other ] )
+
+    def __rsub__(self, other ):
+        """
+        Implementation of - operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other - self
+
+    def __mul__(self,other):
+        """
+        Implementation of * operator, allows use of C{expr * 3} in place of
+        C{expr + expr + expr}.  Expressions may also me multiplied by a 2-integer
+        tuple, similar to C{{min,max}} multipliers in regular expressions.  Tuples
+        may also include C{None} as in:
+         - C{expr*(n,None)} or C{expr*(n,)} is equivalent
+              to C{expr*n + L{ZeroOrMore}(expr)}
+              (read as "at least n instances of C{expr}")
+         - C{expr*(None,n)} is equivalent to C{expr*(0,n)}
+              (read as "0 to n instances of C{expr}")
+         - C{expr*(None,None)} is equivalent to C{L{ZeroOrMore}(expr)}
+         - C{expr*(1,None)} is equivalent to C{L{OneOrMore}(expr)}
+
+        Note that C{expr*(None,n)} does not raise an exception if
+        more than n exprs exist in the input stream; that is,
+        C{expr*(None,n)} does not enforce a maximum number of expr
+        occurrences.  If this behavior is desired, then write
+        C{expr*(None,n) + ~expr}
+        """
+        if isinstance(other,int):
+            minElements, optElements = other,0
+        elif isinstance(other,tuple):
+            other = (other + (None, None))[:2]
+            if other[0] is None:
+                other = (0, other[1])
+            if isinstance(other[0],int) and other[1] is None:
+                if other[0] == 0:
+                    return ZeroOrMore(self)
+                if other[0] == 1:
+                    return OneOrMore(self)
+                else:
+                    return self*other[0] + ZeroOrMore(self)
+            elif isinstance(other[0],int) and isinstance(other[1],int):
+                minElements, optElements = other
+                optElements -= minElements
+            else:
+                raise TypeError("cannot multiply 'ParserElement' and ('%s','%s') objects", type(other[0]),type(other[1]))
+        else:
+            raise TypeError("cannot multiply 'ParserElement' and '%s' objects", type(other))
+
+        if minElements < 0:
+            raise ValueError("cannot multiply ParserElement by negative value")
+        if optElements < 0:
+            raise ValueError("second tuple value must be greater or equal to first tuple value")
+        if minElements == optElements == 0:
+            raise ValueError("cannot multiply ParserElement by 0 or (0,0)")
+
+        if (optElements):
+            def makeOptionalList(n):
+                if n>1:
+                    return Optional(self + makeOptionalList(n-1))
+                else:
+                    return Optional(self)
+            if minElements:
+                if minElements == 1:
+                    ret = self + makeOptionalList(optElements)
+                else:
+                    ret = And([self]*minElements) + makeOptionalList(optElements)
+            else:
+                ret = makeOptionalList(optElements)
+        else:
+            if minElements == 1:
+                ret = self
+            else:
+                ret = And([self]*minElements)
+        return ret
+
+    def __rmul__(self, other):
+        return self.__mul__(other)
+
+    def __or__(self, other ):
+        """
+        Implementation of | operator - returns C{L{MatchFirst}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return MatchFirst( [ self, other ] )
+
+    def __ror__(self, other ):
+        """
+        Implementation of | operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other | self
+
+    def __xor__(self, other ):
+        """
+        Implementation of ^ operator - returns C{L{Or}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Or( [ self, other ] )
+
+    def __rxor__(self, other ):
+        """
+        Implementation of ^ operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other ^ self
+
+    def __and__(self, other ):
+        """
+        Implementation of & operator - returns C{L{Each}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return Each( [ self, other ] )
+
+    def __rand__(self, other ):
+        """
+        Implementation of & operator when left operand is not a C{L{ParserElement}}
+        """
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        if not isinstance( other, ParserElement ):
+            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
+                    SyntaxWarning, stacklevel=2)
+            return None
+        return other & self
+
+    def __invert__( self ):
+        """
+        Implementation of ~ operator - returns C{L{NotAny}}
+        """
+        return NotAny( self )
+
+    def __call__(self, name=None):
+        """
+        Shortcut for C{L{setResultsName}}, with C{listAllMatches=False}.
+        
+        If C{name} is given with a trailing C{'*'} character, then C{listAllMatches} will be
+        passed as C{True}.
+           
+        If C{name} is omitted, same as calling C{L{copy}}.
+
+        Example::
+            # these are equivalent
+            userdata = Word(alphas).setResultsName("name") + Word(nums+"-").setResultsName("socsecno")
+            userdata = Word(alphas)("name") + Word(nums+"-")("socsecno")             
+        """
+        if name is not None:
+            return self.setResultsName(name)
+        else:
+            return self.copy()
+
+    def suppress( self ):
+        """
+        Suppresses the output of this C{ParserElement}; useful to keep punctuation from
+        cluttering up returned output.
+        """
+        return Suppress( self )
+
+    def leaveWhitespace( self ):
+        """
+        Disables the skipping of whitespace before matching the characters in the
+        C{ParserElement}'s defined pattern.  This is normally only used internally by
+        the pyparsing module, but may be needed in some whitespace-sensitive grammars.
+        """
+        self.skipWhitespace = False
+        return self
+
+    def setWhitespaceChars( self, chars ):
+        """
+        Overrides the default whitespace chars
+        """
+        self.skipWhitespace = True
+        self.whiteChars = chars
+        self.copyDefaultWhiteChars = False
+        return self
+
+    def parseWithTabs( self ):
+        """
+        Overrides default behavior to expand C{<TAB>}s to spaces before parsing the input string.
+        Must be called before C{parseString} when the input grammar contains elements that
+        match C{<TAB>} characters.
+        """
+        self.keepTabs = True
+        return self
+
+    def ignore( self, other ):
+        """
+        Define expression to be ignored (e.g., comments) while doing pattern
+        matching; may be called repeatedly, to define multiple comment or other
+        ignorable patterns.
+        
+        Example::
+            patt = OneOrMore(Word(alphas))
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj']
+            
+            patt.ignore(cStyleComment)
+            patt.parseString('ablaj /* comment */ lskjd') # -> ['ablaj', 'lskjd']
+        """
+        if isinstance(other, basestring):
+            other = Suppress(other)
+
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                self.ignoreExprs.append(other)
+        else:
+            self.ignoreExprs.append( Suppress( other.copy() ) )
+        return self
+
+    def setDebugActions( self, startAction, successAction, exceptionAction ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        """
+        self.debugActions = (startAction or _defaultStartDebugAction,
+                             successAction or _defaultSuccessDebugAction,
+                             exceptionAction or _defaultExceptionDebugAction)
+        self.debug = True
+        return self
+
+    def setDebug( self, flag=True ):
+        """
+        Enable display of debugging messages while doing pattern matching.
+        Set C{flag} to True to enable, False to disable.
+
+        Example::
+            wd = Word(alphas).setName("alphaword")
+            integer = Word(nums).setName("numword")
+            term = wd | integer
+            
+            # turn on debugging for wd
+            wd.setDebug()
+
+            OneOrMore(term).parseString("abc 123 xyz 890")
+        
+        prints::
+            Match alphaword at loc 0(1,1)
+            Matched alphaword -> ['abc']
+            Match alphaword at loc 3(1,4)
+            Exception raised:Expected alphaword (at char 4), (line:1, col:5)
+            Match alphaword at loc 7(1,8)
+            Matched alphaword -> ['xyz']
+            Match alphaword at loc 11(1,12)
+            Exception raised:Expected alphaword (at char 12), (line:1, col:13)
+            Match alphaword at loc 15(1,16)
+            Exception raised:Expected alphaword (at char 15), (line:1, col:16)
+
+        The output shown is that produced by the default debug actions - custom debug actions can be
+        specified using L{setDebugActions}. Prior to attempting
+        to match the C{wd} expression, the debugging message C{"Match <exprname> at loc <n>(<line>,<col>)"}
+        is shown. Then if the parse succeeds, a C{"Matched"} message is shown, or an C{"Exception raised"}
+        message is shown. Also note the use of L{setName} to assign a human-readable name to the expression,
+        which makes debugging and exception messages easier to understand - for instance, the default
+        name created for the C{Word} expression without calling C{setName} is C{"W:(ABCD...)"}.
+        """
+        if flag:
+            self.setDebugActions( _defaultStartDebugAction, _defaultSuccessDebugAction, _defaultExceptionDebugAction )
+        else:
+            self.debug = False
+        return self
+
+    def __str__( self ):
+        return self.name
+
+    def __repr__( self ):
+        return _ustr(self)
+
+    def streamline( self ):
+        self.streamlined = True
+        self.strRepr = None
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        pass
+
+    def validate( self, validateTrace=[] ):
+        """
+        Check defined expressions for valid structure, check for infinite recursive definitions.
+        """
+        self.checkRecursion( [] )
+
+    def parseFile( self, file_or_filename, parseAll=False ):
+        """
+        Execute the parse expression on the given file or filename.
+        If a filename is specified (instead of a file object),
+        the entire file is opened, read, and closed before parsing.
+        """
+        try:
+            file_contents = file_or_filename.read()
+        except AttributeError:
+            with open(file_or_filename, "r") as f:
+                file_contents = f.read()
+        try:
+            return self.parseString(file_contents, parseAll)
+        except ParseBaseException as exc:
+            if ParserElement.verbose_stacktrace:
+                raise
+            else:
+                # catch and re-raise exception from here, clears out pyparsing internal stack trace
+                raise exc
+
+    def __eq__(self,other):
+        if isinstance(other, ParserElement):
+            return self is other or vars(self) == vars(other)
+        elif isinstance(other, basestring):
+            return self.matches(other)
+        else:
+            return super(ParserElement,self)==other
+
+    def __ne__(self,other):
+        return not (self == other)
+
+    def __hash__(self):
+        return hash(id(self))
+
+    def __req__(self,other):
+        return self == other
+
+    def __rne__(self,other):
+        return not (self == other)
+
+    def matches(self, testString, parseAll=True):
+        """
+        Method for quick testing of a parser against a test string. Good for simple 
+        inline microtests of sub expressions while building up larger parser.
+           
+        Parameters:
+         - testString - to test against this expression for a match
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests
+            
+        Example::
+            expr = Word(nums)
+            assert expr.matches("100")
+        """
+        try:
+            self.parseString(_ustr(testString), parseAll=parseAll)
+            return True
+        except ParseBaseException:
+            return False
+                
+    def runTests(self, tests, parseAll=True, comment='#', fullDump=True, printResults=True, failureTests=False):
+        """
+        Execute the parse expression on a series of test strings, showing each
+        test, the parsed results or where the parse failed. Quick and easy way to
+        run a parse expression against a list of sample strings.
+           
+        Parameters:
+         - tests - a list of separate test strings, or a multiline string of test strings
+         - parseAll - (default=C{True}) - flag to pass to C{L{parseString}} when running tests           
+         - comment - (default=C{'#'}) - expression for indicating embedded comments in the test 
+              string; pass None to disable comment filtering
+         - fullDump - (default=C{True}) - dump results as list followed by results names in nested outline;
+              if False, only dump nested list
+         - printResults - (default=C{True}) prints test output to stdout
+         - failureTests - (default=C{False}) indicates if these tests are expected to fail parsing
+
+        Returns: a (success, results) tuple, where success indicates that all tests succeeded
+        (or failed if C{failureTests} is True), and the results contain a list of lines of each 
+        test's output
+        
+        Example::
+            number_expr = pyparsing_common.number.copy()
+
+            result = number_expr.runTests('''
+                # unsigned integer
+                100
+                # negative integer
+                -100
+                # float with scientific notation
+                6.02e23
+                # integer with scientific notation
+                1e-12
+                ''')
+            print("Success" if result[0] else "Failed!")
+
+            result = number_expr.runTests('''
+                # stray character
+                100Z
+                # missing leading digit before '.'
+                -.100
+                # too many '.'
+                3.14.159
+                ''', failureTests=True)
+            print("Success" if result[0] else "Failed!")
+        prints::
+            # unsigned integer
+            100
+            [100]
+
+            # negative integer
+            -100
+            [-100]
+
+            # float with scientific notation
+            6.02e23
+            [6.02e+23]
+
+            # integer with scientific notation
+            1e-12
+            [1e-12]
+
+            Success
+            
+            # stray character
+            100Z
+               ^
+            FAIL: Expected end of text (at char 3), (line:1, col:4)
+
+            # missing leading digit before '.'
+            -.100
+            ^
+            FAIL: Expected {real number with scientific notation | real number | signed integer} (at char 0), (line:1, col:1)
+
+            # too many '.'
+            3.14.159
+                ^
+            FAIL: Expected end of text (at char 4), (line:1, col:5)
+
+            Success
+
+        Each test string must be on a single line. If you want to test a string that spans multiple
+        lines, create a test like this::
+
+            expr.runTest(r"this is a test\\n of strings that spans \\n 3 lines")
+        
+        (Note that this is a raw string literal, you must include the leading 'r'.)
+        """
+        if isinstance(tests, basestring):
+            tests = list(map(str.strip, tests.rstrip().splitlines()))
+        if isinstance(comment, basestring):
+            comment = Literal(comment)
+        allResults = []
+        comments = []
+        success = True
+        for t in tests:
+            if comment is not None and comment.matches(t, False) or comments and not t:
+                comments.append(t)
+                continue
+            if not t:
+                continue
+            out = ['\n'.join(comments), t]
+            comments = []
+            try:
+                t = t.replace(r'\n','\n')
+                result = self.parseString(t, parseAll=parseAll)
+                out.append(result.dump(full=fullDump))
+                success = success and not failureTests
+            except ParseBaseException as pe:
+                fatal = "(FATAL)" if isinstance(pe, ParseFatalException) else ""
+                if '\n' in t:
+                    out.append(line(pe.loc, t))
+                    out.append(' '*(col(pe.loc,t)-1) + '^' + fatal)
+                else:
+                    out.append(' '*pe.loc + '^' + fatal)
+                out.append("FAIL: " + str(pe))
+                success = success and failureTests
+                result = pe
+            except Exception as exc:
+                out.append("FAIL-EXCEPTION: " + str(exc))
+                success = success and failureTests
+                result = exc
+
+            if printResults:
+                if fullDump:
+                    out.append('')
+                print('\n'.join(out))
+
+            allResults.append((t, result))
+        
+        return success, allResults
+
+        
+class Token(ParserElement):
+    """
+    Abstract C{ParserElement} subclass, for defining atomic matching patterns.
+    """
+    def __init__( self ):
+        super(Token,self).__init__( savelist=False )
+
+
+class Empty(Token):
+    """
+    An empty token, will always match.
+    """
+    def __init__( self ):
+        super(Empty,self).__init__()
+        self.name = "Empty"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+
+class NoMatch(Token):
+    """
+    A token that will never match.
+    """
+    def __init__( self ):
+        super(NoMatch,self).__init__()
+        self.name = "NoMatch"
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.errmsg = "Unmatchable token"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Literal(Token):
+    """
+    Token to exactly match a specified string.
+    
+    Example::
+        Literal('blah').parseString('blah')  # -> ['blah']
+        Literal('blah').parseString('blahfooblah')  # -> ['blah']
+        Literal('blah').parseString('bla')  # -> Exception: Expected "blah"
+    
+    For case-insensitive matching, use L{CaselessLiteral}.
+    
+    For keyword matching (force word break before and after the matched string),
+    use L{Keyword} or L{CaselessKeyword}.
+    """
+    def __init__( self, matchString ):
+        super(Literal,self).__init__()
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Literal; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+            self.__class__ = Empty
+        self.name = '"%s"' % _ustr(self.match)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+
+    # Performance tuning: this routine gets called a *lot*
+    # if this is a single character match string  and the first character matches,
+    # short-circuit as quickly as possible, and avoid calling startswith
+    #~ @profile
+    def parseImpl( self, instring, loc, doActions=True ):
+        if (instring[loc] == self.firstMatchChar and
+            (self.matchLen==1 or instring.startswith(self.match,loc)) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+_L = Literal
+ParserElement._literalStringClass = Literal
+
+class Keyword(Token):
+    """
+    Token to exactly match a specified string as a keyword, that is, it must be
+    immediately followed by a non-keyword character.  Compare with C{L{Literal}}:
+     - C{Literal("if")} will match the leading C{'if'} in C{'ifAndOnlyIf'}.
+     - C{Keyword("if")} will not; it will only match the leading C{'if'} in C{'if x=1'}, or C{'if(y==2)'}
+    Accepts two optional constructor arguments in addition to the keyword string:
+     - C{identChars} is a string of characters that would be valid identifier characters,
+          defaulting to all alphanumerics + "_" and "$"
+     - C{caseless} allows case-insensitive matching, default is C{False}.
+       
+    Example::
+        Keyword("start").parseString("start")  # -> ['start']
+        Keyword("start").parseString("starting")  # -> Exception
+
+    For case-insensitive matching, use L{CaselessKeyword}.
+    """
+    DEFAULT_KEYWORD_CHARS = alphanums+"_$"
+
+    def __init__( self, matchString, identChars=None, caseless=False ):
+        super(Keyword,self).__init__()
+        if identChars is None:
+            identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        self.match = matchString
+        self.matchLen = len(matchString)
+        try:
+            self.firstMatchChar = matchString[0]
+        except IndexError:
+            warnings.warn("null string passed to Keyword; use Empty() instead",
+                            SyntaxWarning, stacklevel=2)
+        self.name = '"%s"' % self.match
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = False
+        self.mayIndexError = False
+        self.caseless = caseless
+        if caseless:
+            self.caselessmatch = matchString.upper()
+            identChars = identChars.upper()
+        self.identChars = set(identChars)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.caseless:
+            if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+                 (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) and
+                 (loc == 0 or instring[loc-1].upper() not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        else:
+            if (instring[loc] == self.firstMatchChar and
+                (self.matchLen==1 or instring.startswith(self.match,loc)) and
+                (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen] not in self.identChars) and
+                (loc == 0 or instring[loc-1] not in self.identChars) ):
+                return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+    def copy(self):
+        c = super(Keyword,self).copy()
+        c.identChars = Keyword.DEFAULT_KEYWORD_CHARS
+        return c
+
+    @staticmethod
+    def setDefaultKeywordChars( chars ):
+        """Overrides the default Keyword chars
+        """
+        Keyword.DEFAULT_KEYWORD_CHARS = chars
+
+class CaselessLiteral(Literal):
+    """
+    Token to match a specified string, ignoring case of letters.
+    Note: the matched results will always be in the case of the given
+    match string, NOT the case of the input text.
+
+    Example::
+        OneOrMore(CaselessLiteral("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessKeyword}.)
+    """
+    def __init__( self, matchString ):
+        super(CaselessLiteral,self).__init__( matchString.upper() )
+        # Preserve the defining literal.
+        self.returnString = matchString
+        self.name = "'%s'" % self.returnString
+        self.errmsg = "Expected " + self.name
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[ loc:loc+self.matchLen ].upper() == self.match:
+            return loc+self.matchLen, self.returnString
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CaselessKeyword(Keyword):
+    """
+    Caseless version of L{Keyword}.
+
+    Example::
+        OneOrMore(CaselessKeyword("CMD")).parseString("cmd CMD Cmd10") # -> ['CMD', 'CMD']
+        
+    (Contrast with example for L{CaselessLiteral}.)
+    """
+    def __init__( self, matchString, identChars=None ):
+        super(CaselessKeyword,self).__init__( matchString, identChars, caseless=True )
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if ( (instring[ loc:loc+self.matchLen ].upper() == self.caselessmatch) and
+             (loc >= len(instring)-self.matchLen or instring[loc+self.matchLen].upper() not in self.identChars) ):
+            return loc+self.matchLen, self.match
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class CloseMatch(Token):
+    """
+    A variation on L{Literal} which matches "close" matches, that is, 
+    strings with at most 'n' mismatching characters. C{CloseMatch} takes parameters:
+     - C{match_string} - string to be matched
+     - C{maxMismatches} - (C{default=1}) maximum number of mismatches allowed to count as a match
+    
+    The results from a successful parse will contain the matched text from the input string and the following named results:
+     - C{mismatches} - a list of the positions within the match_string where mismatches were found
+     - C{original} - the original match_string used to compare against the input string
+    
+    If C{mismatches} is an empty list, then the match was an exact match.
+    
+    Example::
+        patt = CloseMatch("ATCATCGAATGGA")
+        patt.parseString("ATCATCGAAXGGA") # -> (['ATCATCGAAXGGA'], {'mismatches': [[9]], 'original': ['ATCATCGAATGGA']})
+        patt.parseString("ATCAXCGAAXGGA") # -> Exception: Expected 'ATCATCGAATGGA' (with up to 1 mismatches) (at char 0), (line:1, col:1)
+
+        # exact match
+        patt.parseString("ATCATCGAATGGA") # -> (['ATCATCGAATGGA'], {'mismatches': [[]], 'original': ['ATCATCGAATGGA']})
+
+        # close match allowing up to 2 mismatches
+        patt = CloseMatch("ATCATCGAATGGA", maxMismatches=2)
+        patt.parseString("ATCAXCGAAXGGA") # -> (['ATCAXCGAAXGGA'], {'mismatches': [[4, 9]], 'original': ['ATCATCGAATGGA']})
+    """
+    def __init__(self, match_string, maxMismatches=1):
+        super(CloseMatch,self).__init__()
+        self.name = match_string
+        self.match_string = match_string
+        self.maxMismatches = maxMismatches
+        self.errmsg = "Expected %r (with up to %d mismatches)" % (self.match_string, self.maxMismatches)
+        self.mayIndexError = False
+        self.mayReturnEmpty = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        start = loc
+        instrlen = len(instring)
+        maxloc = start + len(self.match_string)
+
+        if maxloc <= instrlen:
+            match_string = self.match_string
+            match_stringloc = 0
+            mismatches = []
+            maxMismatches = self.maxMismatches
+
+            for match_stringloc,s_m in enumerate(zip(instring[loc:maxloc], self.match_string)):
+                src,mat = s_m
+                if src != mat:
+                    mismatches.append(match_stringloc)
+                    if len(mismatches) > maxMismatches:
+                        break
+            else:
+                loc = match_stringloc + 1
+                results = ParseResults([instring[start:loc]])
+                results['original'] = self.match_string
+                results['mismatches'] = mismatches
+                return loc, results
+
+        raise ParseException(instring, loc, self.errmsg, self)
+
+
+class Word(Token):
+    """
+    Token for matching words composed of allowed character sets.
+    Defined with string containing all allowed initial characters,
+    an optional string containing allowed body characters (if omitted,
+    defaults to the initial character set), and an optional minimum,
+    maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction. An optional
+    C{excludeChars} parameter can list characters that might be found in 
+    the input C{bodyChars} string; useful to define a word of all printables
+    except for one or two characters, for instance.
+    
+    L{srange} is useful for defining custom character set strings for defining 
+    C{Word} expressions, using range notation from regular expression character sets.
+    
+    A common mistake is to use C{Word} to match a specific literal string, as in 
+    C{Word("Address")}. Remember that C{Word} uses the string argument to define
+    I{sets} of matchable characters. This expression would match "Add", "AAA",
+    "dAred", or any other word made up of the characters 'A', 'd', 'r', 'e', and 's'.
+    To match an exact literal string, use L{Literal} or L{Keyword}.
+
+    pyparsing includes helper strings for building Words:
+     - L{alphas}
+     - L{nums}
+     - L{alphanums}
+     - L{hexnums}
+     - L{alphas8bit} (alphabetic characters in ASCII range 128-255 - accented, tilded, umlauted, etc.)
+     - L{punc8bit} (non-alphabetic characters in ASCII range 128-255 - currency, symbols, superscripts, diacriticals, etc.)
+     - L{printables} (any non-whitespace character)
+
+    Example::
+        # a word composed of digits
+        integer = Word(nums) # equivalent to Word("0123456789") or Word(srange("0-9"))
+        
+        # a word with a leading capital, and zero or more lowercase
+        capital_word = Word(alphas.upper(), alphas.lower())
+
+        # hostnames are alphanumeric, with leading alpha, and '-'
+        hostname = Word(alphas, alphanums+'-')
+        
+        # roman numeral (not a strict parser, accepts invalid mix of characters)
+        roman = Word("IVXLCDM")
+        
+        # any string of non-whitespace characters, except for ','
+        csv_value = Word(printables, excludeChars=",")
+    """
+    def __init__( self, initChars, bodyChars=None, min=1, max=0, exact=0, asKeyword=False, excludeChars=None ):
+        super(Word,self).__init__()
+        if excludeChars:
+            initChars = ''.join(c for c in initChars if c not in excludeChars)
+            if bodyChars:
+                bodyChars = ''.join(c for c in bodyChars if c not in excludeChars)
+        self.initCharsOrig = initChars
+        self.initChars = set(initChars)
+        if bodyChars :
+            self.bodyCharsOrig = bodyChars
+            self.bodyChars = set(bodyChars)
+        else:
+            self.bodyCharsOrig = initChars
+            self.bodyChars = set(initChars)
+
+        self.maxSpecified = max > 0
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(Word()) if zero-length word is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.asKeyword = asKeyword
+
+        if ' ' not in self.initCharsOrig+self.bodyCharsOrig and (min==1 and max==0 and exact==0):
+            if self.bodyCharsOrig == self.initCharsOrig:
+                self.reString = "[%s]+" % _escapeRegexRangeChars(self.initCharsOrig)
+            elif len(self.initCharsOrig) == 1:
+                self.reString = "%s[%s]*" % \
+                                      (re.escape(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            else:
+                self.reString = "[%s][%s]*" % \
+                                      (_escapeRegexRangeChars(self.initCharsOrig),
+                                      _escapeRegexRangeChars(self.bodyCharsOrig),)
+            if self.asKeyword:
+                self.reString = r"\b"+self.reString+r"\b"
+            try:
+                self.re = re.compile( self.reString )
+            except Exception:
+                self.re = None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.re:
+            result = self.re.match(instring,loc)
+            if not result:
+                raise ParseException(instring, loc, self.errmsg, self)
+
+            loc = result.end()
+            return loc, result.group()
+
+        if not(instring[ loc ] in self.initChars):
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        instrlen = len(instring)
+        bodychars = self.bodyChars
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, instrlen )
+        while loc < maxloc and instring[loc] in bodychars:
+            loc += 1
+
+        throwException = False
+        if loc - start < self.minLen:
+            throwException = True
+        if self.maxSpecified and loc < instrlen and instring[loc] in bodychars:
+            throwException = True
+        if self.asKeyword:
+            if (start>0 and instring[start-1] in bodychars) or (loc<instrlen and instring[loc] in bodychars):
+                throwException = True
+
+        if throwException:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(Word,self).__str__()
+        except Exception:
+            pass
+
+
+        if self.strRepr is None:
+
+            def charsAsStr(s):
+                if len(s)>4:
+                    return s[:4]+"..."
+                else:
+                    return s
+
+            if ( self.initCharsOrig != self.bodyCharsOrig ):
+                self.strRepr = "W:(%s,%s)" % ( charsAsStr(self.initCharsOrig), charsAsStr(self.bodyCharsOrig) )
+            else:
+                self.strRepr = "W:(%s)" % charsAsStr(self.initCharsOrig)
+
+        return self.strRepr
+
+
+class Regex(Token):
+    """
+    Token for matching strings that match a given regular expression.
+    Defined with string specifying the regular expression in a form recognized by the inbuilt Python re module.
+    If the given regex contains named groups (defined using C{(?P<name>...)}), these will be preserved as 
+    named parse results.
+
+    Example::
+        realnum = Regex(r"[+-]?\d+\.\d*")
+        date = Regex(r'(?P<year>\d{4})-(?P<month>\d\d?)-(?P<day>\d\d?)')
+        # ref: http://stackoverflow.com/questions/267399/how-do-you-match-only-valid-roman-numerals-with-a-regular-expression
+        roman = Regex(r"M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})")
+    """
+    compiledREtype = type(re.compile("[A-Z]"))
+    def __init__( self, pattern, flags=0):
+        """The parameters C{pattern} and C{flags} are passed to the C{re.compile()} function as-is. See the Python C{re} module for an explanation of the acceptable patterns and flags."""
+        super(Regex,self).__init__()
+
+        if isinstance(pattern, basestring):
+            if not pattern:
+                warnings.warn("null string passed to Regex; use Empty() instead",
+                        SyntaxWarning, stacklevel=2)
+
+            self.pattern = pattern
+            self.flags = flags
+
+            try:
+                self.re = re.compile(self.pattern, self.flags)
+                self.reString = self.pattern
+            except sre_constants.error:
+                warnings.warn("invalid pattern (%s) passed to Regex" % pattern,
+                    SyntaxWarning, stacklevel=2)
+                raise
+
+        elif isinstance(pattern, Regex.compiledREtype):
+            self.re = pattern
+            self.pattern = \
+            self.reString = str(pattern)
+            self.flags = flags
+            
+        else:
+            raise ValueError("Regex may only be constructed with a string or a compiled RE object")
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = self.re.match(instring,loc)
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        d = result.groupdict()
+        ret = ParseResults(result.group())
+        if d:
+            for k in d:
+                ret[k] = d[k]
+        return loc,ret
+
+    def __str__( self ):
+        try:
+            return super(Regex,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "Re:(%s)" % repr(self.pattern)
+
+        return self.strRepr
+
+
+class QuotedString(Token):
+    r"""
+    Token for matching strings that are delimited by quoting characters.
+    
+    Defined with the following parameters:
+        - quoteChar - string of one or more characters defining the quote delimiting string
+        - escChar - character to escape quotes, typically backslash (default=C{None})
+        - escQuote - special quote sequence to escape an embedded quote string (such as SQL's "" to escape an embedded ") (default=C{None})
+        - multiline - boolean indicating whether quotes can span multiple lines (default=C{False})
+        - unquoteResults - boolean indicating whether the matched text should be unquoted (default=C{True})
+        - endQuoteChar - string of one or more characters defining the end of the quote delimited string (default=C{None} => same as quoteChar)
+        - convertWhitespaceEscapes - convert escaped whitespace (C{'\t'}, C{'\n'}, etc.) to actual whitespace (default=C{True})
+
+    Example::
+        qs = QuotedString('"')
+        print(qs.searchString('lsjdf "This is the quote" sldjf'))
+        complex_qs = QuotedString('{{', endQuoteChar='}}')
+        print(complex_qs.searchString('lsjdf {{This is the "quote"}} sldjf'))
+        sql_qs = QuotedString('"', escQuote='""')
+        print(sql_qs.searchString('lsjdf "This is the quote with ""embedded"" quotes" sldjf'))
+    prints::
+        [['This is the quote']]
+        [['This is the "quote"']]
+        [['This is the quote with "embedded" quotes']]
+    """
+    def __init__( self, quoteChar, escChar=None, escQuote=None, multiline=False, unquoteResults=True, endQuoteChar=None, convertWhitespaceEscapes=True):
+        super(QuotedString,self).__init__()
+
+        # remove white space from quote chars - wont work anyway
+        quoteChar = quoteChar.strip()
+        if not quoteChar:
+            warnings.warn("quoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+            raise SyntaxError()
+
+        if endQuoteChar is None:
+            endQuoteChar = quoteChar
+        else:
+            endQuoteChar = endQuoteChar.strip()
+            if not endQuoteChar:
+                warnings.warn("endQuoteChar cannot be the empty string",SyntaxWarning,stacklevel=2)
+                raise SyntaxError()
+
+        self.quoteChar = quoteChar
+        self.quoteCharLen = len(quoteChar)
+        self.firstQuoteChar = quoteChar[0]
+        self.endQuoteChar = endQuoteChar
+        self.endQuoteCharLen = len(endQuoteChar)
+        self.escChar = escChar
+        self.escQuote = escQuote
+        self.unquoteResults = unquoteResults
+        self.convertWhitespaceEscapes = convertWhitespaceEscapes
+
+        if multiline:
+            self.flags = re.MULTILINE | re.DOTALL
+            self.pattern = r'%s(?:[^%s%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        else:
+            self.flags = 0
+            self.pattern = r'%s(?:[^%s\n\r%s]' % \
+                ( re.escape(self.quoteChar),
+                  _escapeRegexRangeChars(self.endQuoteChar[0]),
+                  (escChar is not None and _escapeRegexRangeChars(escChar) or '') )
+        if len(self.endQuoteChar) > 1:
+            self.pattern += (
+                '|(?:' + ')|(?:'.join("%s[^%s]" % (re.escape(self.endQuoteChar[:i]),
+                                               _escapeRegexRangeChars(self.endQuoteChar[i]))
+                                    for i in range(len(self.endQuoteChar)-1,0,-1)) + ')'
+                )
+        if escQuote:
+            self.pattern += (r'|(?:%s)' % re.escape(escQuote))
+        if escChar:
+            self.pattern += (r'|(?:%s.)' % re.escape(escChar))
+            self.escCharReplacePattern = re.escape(self.escChar)+"(.)"
+        self.pattern += (r')*%s' % re.escape(self.endQuoteChar))
+
+        try:
+            self.re = re.compile(self.pattern, self.flags)
+            self.reString = self.pattern
+        except sre_constants.error:
+            warnings.warn("invalid pattern (%s) passed to Regex" % self.pattern,
+                SyntaxWarning, stacklevel=2)
+            raise
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayIndexError = False
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        result = instring[loc] == self.firstQuoteChar and self.re.match(instring,loc) or None
+        if not result:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        loc = result.end()
+        ret = result.group()
+
+        if self.unquoteResults:
+
+            # strip off quotes
+            ret = ret[self.quoteCharLen:-self.endQuoteCharLen]
+
+            if isinstance(ret,basestring):
+                # replace escaped whitespace
+                if '\\' in ret and self.convertWhitespaceEscapes:
+                    ws_map = {
+                        r'\t' : '\t',
+                        r'\n' : '\n',
+                        r'\f' : '\f',
+                        r'\r' : '\r',
+                    }
+                    for wslit,wschar in ws_map.items():
+                        ret = ret.replace(wslit, wschar)
+
+                # replace escaped characters
+                if self.escChar:
+                    ret = re.sub(self.escCharReplacePattern,"\g<1>",ret)
+
+                # replace escaped quotes
+                if self.escQuote:
+                    ret = ret.replace(self.escQuote, self.endQuoteChar)
+
+        return loc, ret
+
+    def __str__( self ):
+        try:
+            return super(QuotedString,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "quoted string, starting with %s ending with %s" % (self.quoteChar, self.endQuoteChar)
+
+        return self.strRepr
+
+
+class CharsNotIn(Token):
+    """
+    Token for matching words composed of characters I{not} in a given set (will
+    include whitespace in matched characters if not listed in the provided exclusion set - see example).
+    Defined with string containing all disallowed characters, and an optional
+    minimum, maximum, and/or exact length.  The default value for C{min} is 1 (a
+    minimum value < 1 is not valid); the default values for C{max} and C{exact}
+    are 0, meaning no maximum or exact length restriction.
+
+    Example::
+        # define a comma-separated-value as anything that is not a ','
+        csv_value = CharsNotIn(',')
+        print(delimitedList(csv_value).parseString("dkls,lsdkjf,s12 34,@!#,213"))
+    prints::
+        ['dkls', 'lsdkjf', 's12 34', '@!#', '213']
+    """
+    def __init__( self, notChars, min=1, max=0, exact=0 ):
+        super(CharsNotIn,self).__init__()
+        self.skipWhitespace = False
+        self.notChars = notChars
+
+        if min < 1:
+            raise ValueError("cannot specify a minimum length < 1; use Optional(CharsNotIn()) if zero-length char group is permitted")
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+        self.name = _ustr(self)
+        self.errmsg = "Expected " + self.name
+        self.mayReturnEmpty = ( self.minLen == 0 )
+        self.mayIndexError = False
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if instring[loc] in self.notChars:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        start = loc
+        loc += 1
+        notchars = self.notChars
+        maxlen = min( start+self.maxLen, len(instring) )
+        while loc < maxlen and \
+              (instring[loc] not in notchars):
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+    def __str__( self ):
+        try:
+            return super(CharsNotIn, self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            if len(self.notChars) > 4:
+                self.strRepr = "!W:(%s...)" % self.notChars[:4]
+            else:
+                self.strRepr = "!W:(%s)" % self.notChars
+
+        return self.strRepr
+
+class White(Token):
+    """
+    Special matching class for matching whitespace.  Normally, whitespace is ignored
+    by pyparsing grammars.  This class is included when some whitespace structures
+    are significant.  Define with a string containing the whitespace characters to be
+    matched; default is C{" \\t\\r\\n"}.  Also takes optional C{min}, C{max}, and C{exact} arguments,
+    as defined for the C{L{Word}} class.
+    """
+    whiteStrs = {
+        " " : "<SPC>",
+        "\t": "<TAB>",
+        "\n": "<LF>",
+        "\r": "<CR>",
+        "\f": "<FF>",
+        }
+    def __init__(self, ws=" \t\r\n", min=1, max=0, exact=0):
+        super(White,self).__init__()
+        self.matchWhite = ws
+        self.setWhitespaceChars( "".join(c for c in self.whiteChars if c not in self.matchWhite) )
+        #~ self.leaveWhitespace()
+        self.name = ("".join(White.whiteStrs[c] for c in self.matchWhite))
+        self.mayReturnEmpty = True
+        self.errmsg = "Expected " + self.name
+
+        self.minLen = min
+
+        if max > 0:
+            self.maxLen = max
+        else:
+            self.maxLen = _MAX_INT
+
+        if exact > 0:
+            self.maxLen = exact
+            self.minLen = exact
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if not(instring[ loc ] in self.matchWhite):
+            raise ParseException(instring, loc, self.errmsg, self)
+        start = loc
+        loc += 1
+        maxloc = start + self.maxLen
+        maxloc = min( maxloc, len(instring) )
+        while loc < maxloc and instring[loc] in self.matchWhite:
+            loc += 1
+
+        if loc - start < self.minLen:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        return loc, instring[start:loc]
+
+
+class _PositionToken(Token):
+    def __init__( self ):
+        super(_PositionToken,self).__init__()
+        self.name=self.__class__.__name__
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+
+class GoToColumn(_PositionToken):
+    """
+    Token to advance to a specific column of input text; useful for tabular report scraping.
+    """
+    def __init__( self, colno ):
+        super(GoToColumn,self).__init__()
+        self.col = colno
+
+    def preParse( self, instring, loc ):
+        if col(loc,instring) != self.col:
+            instrlen = len(instring)
+            if self.ignoreExprs:
+                loc = self._skipIgnorables( instring, loc )
+            while loc < instrlen and instring[loc].isspace() and col( loc, instring ) != self.col :
+                loc += 1
+        return loc
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        thiscol = col( loc, instring )
+        if thiscol > self.col:
+            raise ParseException( instring, loc, "Text not in expected column", self )
+        newloc = loc + self.col - thiscol
+        ret = instring[ loc: newloc ]
+        return newloc, ret
+
+
+class LineStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of a line within the parse string
+    
+    Example::
+    
+        test = '''\
+        AAA this line
+        AAA and this line
+          AAA but not this one
+        B AAA and definitely not this one
+        '''
+
+        for t in (LineStart() + 'AAA' + restOfLine).searchString(test):
+            print(t)
+    
+    Prints::
+        ['AAA', ' this line']
+        ['AAA', ' and this line']    
+
+    """
+    def __init__( self ):
+        super(LineStart,self).__init__()
+        self.errmsg = "Expected start of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if col(loc, instring) == 1:
+            return loc, []
+        raise ParseException(instring, loc, self.errmsg, self)
+
+class LineEnd(_PositionToken):
+    """
+    Matches if current position is at the end of a line within the parse string
+    """
+    def __init__( self ):
+        super(LineEnd,self).__init__()
+        self.setWhitespaceChars( ParserElement.DEFAULT_WHITE_CHARS.replace("\n","") )
+        self.errmsg = "Expected end of line"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc<len(instring):
+            if instring[loc] == "\n":
+                return loc+1, "\n"
+            else:
+                raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class StringStart(_PositionToken):
+    """
+    Matches if current position is at the beginning of the parse string
+    """
+    def __init__( self ):
+        super(StringStart,self).__init__()
+        self.errmsg = "Expected start of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc != 0:
+            # see if entire string up to here is just whitespace and ignoreables
+            if loc != self.preParse( instring, 0 ):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class StringEnd(_PositionToken):
+    """
+    Matches if current position is at the end of the parse string
+    """
+    def __init__( self ):
+        super(StringEnd,self).__init__()
+        self.errmsg = "Expected end of text"
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if loc < len(instring):
+            raise ParseException(instring, loc, self.errmsg, self)
+        elif loc == len(instring):
+            return loc+1, []
+        elif loc > len(instring):
+            return loc, []
+        else:
+            raise ParseException(instring, loc, self.errmsg, self)
+
+class WordStart(_PositionToken):
+    """
+    Matches if the current position is at the beginning of a Word, and
+    is not preceded by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordStart(alphanums)}. C{WordStart} will also match at the beginning of
+    the string being parsed, or at the beginning of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordStart,self).__init__()
+        self.wordChars = set(wordChars)
+        self.errmsg = "Not at the start of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        if loc != 0:
+            if (instring[loc-1] in self.wordChars or
+                instring[loc] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+class WordEnd(_PositionToken):
+    """
+    Matches if the current position is at the end of a Word, and
+    is not followed by any character in a given set of C{wordChars}
+    (default=C{printables}). To emulate the C{\b} behavior of regular expressions,
+    use C{WordEnd(alphanums)}. C{WordEnd} will also match at the end of
+    the string being parsed, or at the end of a line.
+    """
+    def __init__(self, wordChars = printables):
+        super(WordEnd,self).__init__()
+        self.wordChars = set(wordChars)
+        self.skipWhitespace = False
+        self.errmsg = "Not at the end of a word"
+
+    def parseImpl(self, instring, loc, doActions=True ):
+        instrlen = len(instring)
+        if instrlen>0 and loc<instrlen:
+            if (instring[loc] in self.wordChars or
+                instring[loc-1] not in self.wordChars):
+                raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+
+class ParseExpression(ParserElement):
+    """
+    Abstract subclass of ParserElement, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(ParseExpression,self).__init__(savelist)
+        if isinstance( exprs, _generatorType ):
+            exprs = list(exprs)
+
+        if isinstance( exprs, basestring ):
+            self.exprs = [ ParserElement._literalStringClass( exprs ) ]
+        elif isinstance( exprs, collections.Iterable ):
+            exprs = list(exprs)
+            # if sequence of strings provided, wrap with Literal
+            if all(isinstance(expr, basestring) for expr in exprs):
+                exprs = map(ParserElement._literalStringClass, exprs)
+            self.exprs = list(exprs)
+        else:
+            try:
+                self.exprs = list( exprs )
+            except TypeError:
+                self.exprs = [ exprs ]
+        self.callPreparse = False
+
+    def __getitem__( self, i ):
+        return self.exprs[i]
+
+    def append( self, other ):
+        self.exprs.append( other )
+        self.strRepr = None
+        return self
+
+    def leaveWhitespace( self ):
+        """Extends C{leaveWhitespace} defined in base class, and also invokes C{leaveWhitespace} on
+           all contained expressions."""
+        self.skipWhitespace = False
+        self.exprs = [ e.copy() for e in self.exprs ]
+        for e in self.exprs:
+            e.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseExpression, self).ignore( other )
+                for e in self.exprs:
+                    e.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseExpression, self).ignore( other )
+            for e in self.exprs:
+                e.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def __str__( self ):
+        try:
+            return super(ParseExpression,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.exprs) )
+        return self.strRepr
+
+    def streamline( self ):
+        super(ParseExpression,self).streamline()
+
+        for e in self.exprs:
+            e.streamline()
+
+        # collapse nested And's of the form And( And( And( a,b), c), d) to And( a,b,c,d )
+        # but only if there are no parse actions or resultsNames on the nested And's
+        # (likewise for Or's and MatchFirst's)
+        if ( len(self.exprs) == 2 ):
+            other = self.exprs[0]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = other.exprs[:] + [ self.exprs[1] ]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+            other = self.exprs[-1]
+            if ( isinstance( other, self.__class__ ) and
+                  not(other.parseAction) and
+                  other.resultsName is None and
+                  not other.debug ):
+                self.exprs = self.exprs[:-1] + other.exprs[:]
+                self.strRepr = None
+                self.mayReturnEmpty |= other.mayReturnEmpty
+                self.mayIndexError  |= other.mayIndexError
+
+        self.errmsg = "Expected " + _ustr(self)
+        
+        return self
+
+    def setResultsName( self, name, listAllMatches=False ):
+        ret = super(ParseExpression,self).setResultsName(name,listAllMatches)
+        return ret
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        for e in self.exprs:
+            e.validate(tmp)
+        self.checkRecursion( [] )
+        
+    def copy(self):
+        ret = super(ParseExpression,self).copy()
+        ret.exprs = [e.copy() for e in self.exprs]
+        return ret
+
+class And(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found in the given order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'+'} operator.
+    May also be constructed using the C{'-'} operator, which will suppress backtracking.
+
+    Example::
+        integer = Word(nums)
+        name_expr = OneOrMore(Word(alphas))
+
+        expr = And([integer("id"),name_expr("name"),integer("age")])
+        # more easily written as:
+        expr = integer("id") + name_expr("name") + integer("age")
+    """
+
+    class _ErrorStop(Empty):
+        def __init__(self, *args, **kwargs):
+            super(And._ErrorStop,self).__init__(*args, **kwargs)
+            self.name = '-'
+            self.leaveWhitespace()
+
+    def __init__( self, exprs, savelist = True ):
+        super(And,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.setWhitespaceChars( self.exprs[0].whiteChars )
+        self.skipWhitespace = self.exprs[0].skipWhitespace
+        self.callPreparse = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        # pass False as last arg to _parse for first element, since we already
+        # pre-parsed the string as part of our And pre-parsing
+        loc, resultlist = self.exprs[0]._parse( instring, loc, doActions, callPreParse=False )
+        errorStop = False
+        for e in self.exprs[1:]:
+            if isinstance(e, And._ErrorStop):
+                errorStop = True
+                continue
+            if errorStop:
+                try:
+                    loc, exprtokens = e._parse( instring, loc, doActions )
+                except ParseSyntaxException:
+                    raise
+                except ParseBaseException as pe:
+                    pe.__traceback__ = None
+                    raise ParseSyntaxException._from_exception(pe)
+                except IndexError:
+                    raise ParseSyntaxException(instring, len(instring), self.errmsg, self)
+            else:
+                loc, exprtokens = e._parse( instring, loc, doActions )
+            if exprtokens or exprtokens.haskeys():
+                resultlist += exprtokens
+        return loc, resultlist
+
+    def __iadd__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #And( [ self, other ] )
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+            if not e.mayReturnEmpty:
+                break
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+
+class Or(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the expression that matches the longest string will be used.
+    May be constructed using the C{'^'} operator.
+
+    Example::
+        # construct Or using '^' operator
+        
+        number = Word(nums) ^ Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789"))
+    prints::
+        [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(Or,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        matches = []
+        for e in self.exprs:
+            try:
+                loc2 = e.tryParse( instring, loc )
+            except ParseException as err:
+                err.__traceback__ = None
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+            else:
+                # save match among all matches, to retry longest to shortest
+                matches.append((loc2, e))
+
+        if matches:
+            matches.sort(key=lambda x: -x[0])
+            for _,e in matches:
+                try:
+                    return e._parse( instring, loc, doActions )
+                except ParseException as err:
+                    err.__traceback__ = None
+                    if err.loc > maxExcLoc:
+                        maxException = err
+                        maxExcLoc = err.loc
+
+        if maxException is not None:
+            maxException.msg = self.errmsg
+            raise maxException
+        else:
+            raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+
+    def __ixor__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #Or( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " ^ ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class MatchFirst(ParseExpression):
+    """
+    Requires that at least one C{ParseExpression} is found.
+    If two expressions match, the first one listed is the one that will match.
+    May be constructed using the C{'|'} operator.
+
+    Example::
+        # construct MatchFirst using '|' operator
+        
+        # watch the order of expressions to match
+        number = Word(nums) | Combine(Word(nums) + '.' + Word(nums))
+        print(number.searchString("123 3.1416 789")) #  Fail! -> [['123'], ['3'], ['1416'], ['789']]
+
+        # put more selective expression first
+        number = Combine(Word(nums) + '.' + Word(nums)) | Word(nums)
+        print(number.searchString("123 3.1416 789")) #  Better -> [['123'], ['3.1416'], ['789']]
+    """
+    def __init__( self, exprs, savelist = False ):
+        super(MatchFirst,self).__init__(exprs, savelist)
+        if self.exprs:
+            self.mayReturnEmpty = any(e.mayReturnEmpty for e in self.exprs)
+        else:
+            self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        maxExcLoc = -1
+        maxException = None
+        for e in self.exprs:
+            try:
+                ret = e._parse( instring, loc, doActions )
+                return ret
+            except ParseException as err:
+                if err.loc > maxExcLoc:
+                    maxException = err
+                    maxExcLoc = err.loc
+            except IndexError:
+                if len(instring) > maxExcLoc:
+                    maxException = ParseException(instring,len(instring),e.errmsg,self)
+                    maxExcLoc = len(instring)
+
+        # only got here if no expression matched, raise exception for match that made it the furthest
+        else:
+            if maxException is not None:
+                maxException.msg = self.errmsg
+                raise maxException
+            else:
+                raise ParseException(instring, loc, "no defined alternatives to match", self)
+
+    def __ior__(self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass( other )
+        return self.append( other ) #MatchFirst( [ self, other ] )
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " | ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class Each(ParseExpression):
+    """
+    Requires all given C{ParseExpression}s to be found, but in any order.
+    Expressions may be separated by whitespace.
+    May be constructed using the C{'&'} operator.
+
+    Example::
+        color = oneOf("RED ORANGE YELLOW GREEN BLUE PURPLE BLACK WHITE BROWN")
+        shape_type = oneOf("SQUARE CIRCLE TRIANGLE STAR HEXAGON OCTAGON")
+        integer = Word(nums)
+        shape_attr = "shape:" + shape_type("shape")
+        posn_attr = "posn:" + Group(integer("x") + ',' + integer("y"))("posn")
+        color_attr = "color:" + color("color")
+        size_attr = "size:" + integer("size")
+
+        # use Each (using operator '&') to accept attributes in any order 
+        # (shape and posn are required, color and size are optional)
+        shape_spec = shape_attr & posn_attr & Optional(color_attr) & Optional(size_attr)
+
+        shape_spec.runTests('''
+            shape: SQUARE color: BLACK posn: 100, 120
+            shape: CIRCLE size: 50 color: BLUE posn: 50,80
+            color:GREEN size:20 shape:TRIANGLE posn:20,40
+            '''
+            )
+    prints::
+        shape: SQUARE color: BLACK posn: 100, 120
+        ['shape:', 'SQUARE', 'color:', 'BLACK', 'posn:', ['100', ',', '120']]
+        - color: BLACK
+        - posn: ['100', ',', '120']
+          - x: 100
+          - y: 120
+        - shape: SQUARE
+
+
+        shape: CIRCLE size: 50 color: BLUE posn: 50,80
+        ['shape:', 'CIRCLE', 'size:', '50', 'color:', 'BLUE', 'posn:', ['50', ',', '80']]
+        - color: BLUE
+        - posn: ['50', ',', '80']
+          - x: 50
+          - y: 80
+        - shape: CIRCLE
+        - size: 50
+
+
+        color: GREEN size: 20 shape: TRIANGLE posn: 20,40
+        ['color:', 'GREEN', 'size:', '20', 'shape:', 'TRIANGLE', 'posn:', ['20', ',', '40']]
+        - color: GREEN
+        - posn: ['20', ',', '40']
+          - x: 20
+          - y: 40
+        - shape: TRIANGLE
+        - size: 20
+    """
+    def __init__( self, exprs, savelist = True ):
+        super(Each,self).__init__(exprs, savelist)
+        self.mayReturnEmpty = all(e.mayReturnEmpty for e in self.exprs)
+        self.skipWhitespace = True
+        self.initExprGroups = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.initExprGroups:
+            self.opt1map = dict((id(e.expr),e) for e in self.exprs if isinstance(e,Optional))
+            opt1 = [ e.expr for e in self.exprs if isinstance(e,Optional) ]
+            opt2 = [ e for e in self.exprs if e.mayReturnEmpty and not isinstance(e,Optional)]
+            self.optionals = opt1 + opt2
+            self.multioptionals = [ e.expr for e in self.exprs if isinstance(e,ZeroOrMore) ]
+            self.multirequired = [ e.expr for e in self.exprs if isinstance(e,OneOrMore) ]
+            self.required = [ e for e in self.exprs if not isinstance(e,(Optional,ZeroOrMore,OneOrMore)) ]
+            self.required += self.multirequired
+            self.initExprGroups = False
+        tmpLoc = loc
+        tmpReqd = self.required[:]
+        tmpOpt  = self.optionals[:]
+        matchOrder = []
+
+        keepMatching = True
+        while keepMatching:
+            tmpExprs = tmpReqd + tmpOpt + self.multioptionals + self.multirequired
+            failed = []
+            for e in tmpExprs:
+                try:
+                    tmpLoc = e.tryParse( instring, tmpLoc )
+                except ParseException:
+                    failed.append(e)
+                else:
+                    matchOrder.append(self.opt1map.get(id(e),e))
+                    if e in tmpReqd:
+                        tmpReqd.remove(e)
+                    elif e in tmpOpt:
+                        tmpOpt.remove(e)
+            if len(failed) == len(tmpExprs):
+                keepMatching = False
+
+        if tmpReqd:
+            missing = ", ".join(_ustr(e) for e in tmpReqd)
+            raise ParseException(instring,loc,"Missing one or more required elements (%s)" % missing )
+
+        # add any unmatched Optionals, in case they have default values defined
+        matchOrder += [e for e in self.exprs if isinstance(e,Optional) and e.expr in tmpOpt]
+
+        resultlist = []
+        for e in matchOrder:
+            loc,results = e._parse(instring,loc,doActions)
+            resultlist.append(results)
+
+        finalResults = sum(resultlist, ParseResults([]))
+        return loc, finalResults
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + " & ".join(_ustr(e) for e in self.exprs) + "}"
+
+        return self.strRepr
+
+    def checkRecursion( self, parseElementList ):
+        subRecCheckList = parseElementList[:] + [ self ]
+        for e in self.exprs:
+            e.checkRecursion( subRecCheckList )
+
+
+class ParseElementEnhance(ParserElement):
+    """
+    Abstract subclass of C{ParserElement}, for combining and post-processing parsed tokens.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(ParseElementEnhance,self).__init__(savelist)
+        if isinstance( expr, basestring ):
+            if issubclass(ParserElement._literalStringClass, Token):
+                expr = ParserElement._literalStringClass(expr)
+            else:
+                expr = ParserElement._literalStringClass(Literal(expr))
+        self.expr = expr
+        self.strRepr = None
+        if expr is not None:
+            self.mayIndexError = expr.mayIndexError
+            self.mayReturnEmpty = expr.mayReturnEmpty
+            self.setWhitespaceChars( expr.whiteChars )
+            self.skipWhitespace = expr.skipWhitespace
+            self.saveAsList = expr.saveAsList
+            self.callPreparse = expr.callPreparse
+            self.ignoreExprs.extend(expr.ignoreExprs)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr is not None:
+            return self.expr._parse( instring, loc, doActions, callPreParse=False )
+        else:
+            raise ParseException("",loc,self.errmsg,self)
+
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        self.expr = self.expr.copy()
+        if self.expr is not None:
+            self.expr.leaveWhitespace()
+        return self
+
+    def ignore( self, other ):
+        if isinstance( other, Suppress ):
+            if other not in self.ignoreExprs:
+                super( ParseElementEnhance, self).ignore( other )
+                if self.expr is not None:
+                    self.expr.ignore( self.ignoreExprs[-1] )
+        else:
+            super( ParseElementEnhance, self).ignore( other )
+            if self.expr is not None:
+                self.expr.ignore( self.ignoreExprs[-1] )
+        return self
+
+    def streamline( self ):
+        super(ParseElementEnhance,self).streamline()
+        if self.expr is not None:
+            self.expr.streamline()
+        return self
+
+    def checkRecursion( self, parseElementList ):
+        if self in parseElementList:
+            raise RecursiveGrammarException( parseElementList+[self] )
+        subRecCheckList = parseElementList[:] + [ self ]
+        if self.expr is not None:
+            self.expr.checkRecursion( subRecCheckList )
+
+    def validate( self, validateTrace=[] ):
+        tmp = validateTrace[:]+[self]
+        if self.expr is not None:
+            self.expr.validate(tmp)
+        self.checkRecursion( [] )
+
+    def __str__( self ):
+        try:
+            return super(ParseElementEnhance,self).__str__()
+        except Exception:
+            pass
+
+        if self.strRepr is None and self.expr is not None:
+            self.strRepr = "%s:(%s)" % ( self.__class__.__name__, _ustr(self.expr) )
+        return self.strRepr
+
+
+class FollowedBy(ParseElementEnhance):
+    """
+    Lookahead matching of the given parse expression.  C{FollowedBy}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression matches at the current
+    position.  C{FollowedBy} always returns a null token list.
+
+    Example::
+        # use FollowedBy to match a label only if it is followed by a ':'
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        OneOrMore(attr_expr).parseString("shape: SQUARE color: BLACK posn: upper left").pprint()
+    prints::
+        [['shape', 'SQUARE'], ['color', 'BLACK'], ['posn', 'upper left']]
+    """
+    def __init__( self, expr ):
+        super(FollowedBy,self).__init__(expr)
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self.expr.tryParse( instring, loc )
+        return loc, []
+
+
+class NotAny(ParseElementEnhance):
+    """
+    Lookahead to disallow matching with the given parse expression.  C{NotAny}
+    does I{not} advance the parsing position within the input string, it only
+    verifies that the specified parse expression does I{not} match at the current
+    position.  Also, C{NotAny} does I{not} skip over leading whitespace. C{NotAny}
+    always returns a null token list.  May be constructed using the '~' operator.
+
+    Example::
+        
+    """
+    def __init__( self, expr ):
+        super(NotAny,self).__init__(expr)
+        #~ self.leaveWhitespace()
+        self.skipWhitespace = False  # do NOT use self.leaveWhitespace(), don't want to propagate to exprs
+        self.mayReturnEmpty = True
+        self.errmsg = "Found unwanted token, "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        if self.expr.canParseNext(instring, loc):
+            raise ParseException(instring, loc, self.errmsg, self)
+        return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "~{" + _ustr(self.expr) + "}"
+
+        return self.strRepr
+
+class _MultipleMatch(ParseElementEnhance):
+    def __init__( self, expr, stopOn=None):
+        super(_MultipleMatch, self).__init__(expr)
+        self.saveAsList = True
+        ender = stopOn
+        if isinstance(ender, basestring):
+            ender = ParserElement._literalStringClass(ender)
+        self.not_ender = ~ender if ender is not None else None
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        self_expr_parse = self.expr._parse
+        self_skip_ignorables = self._skipIgnorables
+        check_ender = self.not_ender is not None
+        if check_ender:
+            try_not_ender = self.not_ender.tryParse
+        
+        # must be at least one (but first see if we are the stopOn sentinel;
+        # if so, fail)
+        if check_ender:
+            try_not_ender(instring, loc)
+        loc, tokens = self_expr_parse( instring, loc, doActions, callPreParse=False )
+        try:
+            hasIgnoreExprs = (not not self.ignoreExprs)
+            while 1:
+                if check_ender:
+                    try_not_ender(instring, loc)
+                if hasIgnoreExprs:
+                    preloc = self_skip_ignorables( instring, loc )
+                else:
+                    preloc = loc
+                loc, tmptokens = self_expr_parse( instring, preloc, doActions )
+                if tmptokens or tmptokens.haskeys():
+                    tokens += tmptokens
+        except (ParseException,IndexError):
+            pass
+
+        return loc, tokens
+        
+class OneOrMore(_MultipleMatch):
+    """
+    Repetition of one or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match one or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: BLACK"
+        OneOrMore(attr_expr).parseString(text).pprint()  # Fail! read 'color' as data instead of next label -> [['shape', 'SQUARE color']]
+
+        # use stopOn attribute for OneOrMore to avoid reading label string as part of the data
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        OneOrMore(attr_expr).parseString(text).pprint() # Better -> [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'BLACK']]
+        
+        # could also be written as
+        (attr_expr * (1,)).parseString(text).pprint()
+    """
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "{" + _ustr(self.expr) + "}..."
+
+        return self.strRepr
+
+class ZeroOrMore(_MultipleMatch):
+    """
+    Optional repetition of zero or more of the given expression.
+    
+    Parameters:
+     - expr - expression that must match zero or more times
+     - stopOn - (default=C{None}) - expression for a terminating sentinel
+          (only required if the sentinel would ordinarily match the repetition 
+          expression)          
+
+    Example: similar to L{OneOrMore}
+    """
+    def __init__( self, expr, stopOn=None):
+        super(ZeroOrMore,self).__init__(expr, stopOn=stopOn)
+        self.mayReturnEmpty = True
+        
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            return super(ZeroOrMore, self).parseImpl(instring, loc, doActions)
+        except (ParseException,IndexError):
+            return loc, []
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]..."
+
+        return self.strRepr
+
+class _NullToken(object):
+    def __bool__(self):
+        return False
+    __nonzero__ = __bool__
+    def __str__(self):
+        return ""
+
+_optionalNotMatched = _NullToken()
+class Optional(ParseElementEnhance):
+    """
+    Optional matching of the given expression.
+
+    Parameters:
+     - expr - expression that must match zero or more times
+     - default (optional) - value to be returned if the optional expression is not found.
+
+    Example::
+        # US postal code can be a 5-digit zip, plus optional 4-digit qualifier
+        zip = Combine(Word(nums, exact=5) + Optional('-' + Word(nums, exact=4)))
+        zip.runTests('''
+            # traditional ZIP code
+            12345
+            
+            # ZIP+4 form
+            12101-0001
+            
+            # invalid ZIP
+            98765-
+            ''')
+    prints::
+        # traditional ZIP code
+        12345
+        ['12345']
+
+        # ZIP+4 form
+        12101-0001
+        ['12101-0001']
+
+        # invalid ZIP
+        98765-
+             ^
+        FAIL: Expected end of text (at char 5), (line:1, col:6)
+    """
+    def __init__( self, expr, default=_optionalNotMatched ):
+        super(Optional,self).__init__( expr, savelist=False )
+        self.saveAsList = self.expr.saveAsList
+        self.defaultValue = default
+        self.mayReturnEmpty = True
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        try:
+            loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )
+        except (ParseException,IndexError):
+            if self.defaultValue is not _optionalNotMatched:
+                if self.expr.resultsName:
+                    tokens = ParseResults([ self.defaultValue ])
+                    tokens[self.expr.resultsName] = self.defaultValue
+                else:
+                    tokens = [ self.defaultValue ]
+            else:
+                tokens = []
+        return loc, tokens
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+
+        if self.strRepr is None:
+            self.strRepr = "[" + _ustr(self.expr) + "]"
+
+        return self.strRepr
+
+class SkipTo(ParseElementEnhance):
+    """
+    Token for skipping over all undefined text until the matched expression is found.
+
+    Parameters:
+     - expr - target expression marking the end of the data to be skipped
+     - include - (default=C{False}) if True, the target expression is also parsed 
+          (the skipped text and target expression are returned as a 2-element list).
+     - ignore - (default=C{None}) used to define grammars (typically quoted strings and 
+          comments) that might contain false matches to the target expression
+     - failOn - (default=C{None}) define expressions that are not allowed to be 
+          included in the skipped test; if found before the target expression is found, 
+          the SkipTo is not a match
+
+    Example::
+        report = '''
+            Outstanding Issues Report - 1 Jan 2000
+
+               # | Severity | Description                               |  Days Open
+            -----+----------+-------------------------------------------+-----------
+             101 | Critical | Intermittent system crash                 |          6
+              94 | Cosmetic | Spelling error on Login ('log|n')         |         14
+              79 | Minor    | System slow when running too many reports |         47
+            '''
+        integer = Word(nums)
+        SEP = Suppress('|')
+        # use SkipTo to simply match everything up until the next SEP
+        # - ignore quoted strings, so that a '|' character inside a quoted string does not match
+        # - parse action will call token.strip() for each matched token, i.e., the description body
+        string_data = SkipTo(SEP, ignore=quotedString)
+        string_data.setParseAction(tokenMap(str.strip))
+        ticket_expr = (integer("issue_num") + SEP 
+                      + string_data("sev") + SEP 
+                      + string_data("desc") + SEP 
+                      + integer("days_open"))
+        
+        for tkt in ticket_expr.searchString(report):
+            print tkt.dump()
+    prints::
+        ['101', 'Critical', 'Intermittent system crash', '6']
+        - days_open: 6
+        - desc: Intermittent system crash
+        - issue_num: 101
+        - sev: Critical
+        ['94', 'Cosmetic', "Spelling error on Login ('log|n')", '14']
+        - days_open: 14
+        - desc: Spelling error on Login ('log|n')
+        - issue_num: 94
+        - sev: Cosmetic
+        ['79', 'Minor', 'System slow when running too many reports', '47']
+        - days_open: 47
+        - desc: System slow when running too many reports
+        - issue_num: 79
+        - sev: Minor
+    """
+    def __init__( self, other, include=False, ignore=None, failOn=None ):
+        super( SkipTo, self ).__init__( other )
+        self.ignoreExpr = ignore
+        self.mayReturnEmpty = True
+        self.mayIndexError = False
+        self.includeMatch = include
+        self.asList = False
+        if isinstance(failOn, basestring):
+            self.failOn = ParserElement._literalStringClass(failOn)
+        else:
+            self.failOn = failOn
+        self.errmsg = "No match found for "+_ustr(self.expr)
+
+    def parseImpl( self, instring, loc, doActions=True ):
+        startloc = loc
+        instrlen = len(instring)
+        expr = self.expr
+        expr_parse = self.expr._parse
+        self_failOn_canParseNext = self.failOn.canParseNext if self.failOn is not None else None
+        self_ignoreExpr_tryParse = self.ignoreExpr.tryParse if self.ignoreExpr is not None else None
+        
+        tmploc = loc
+        while tmploc <= instrlen:
+            if self_failOn_canParseNext is not None:
+                # break if failOn expression matches
+                if self_failOn_canParseNext(instring, tmploc):
+                    break
+                    
+            if self_ignoreExpr_tryParse is not None:
+                # advance past ignore expressions
+                while 1:
+                    try:
+                        tmploc = self_ignoreExpr_tryParse(instring, tmploc)
+                    except ParseBaseException:
+                        break
+            
+            try:
+                expr_parse(instring, tmploc, doActions=False, callPreParse=False)
+            except (ParseException, IndexError):
+                # no match, advance loc in string
+                tmploc += 1
+            else:
+                # matched skipto expr, done
+                break
+
+        else:
+            # ran off the end of the input string without matching skipto expr, fail
+            raise ParseException(instring, loc, self.errmsg, self)
+
+        # build up return values
+        loc = tmploc
+        skiptext = instring[startloc:loc]
+        skipresult = ParseResults(skiptext)
+        
+        if self.includeMatch:
+            loc, mat = expr_parse(instring,loc,doActions,callPreParse=False)
+            skipresult += mat
+
+        return loc, skipresult
+
+class Forward(ParseElementEnhance):
+    """
+    Forward declaration of an expression to be defined later -
+    used for recursive grammars, such as algebraic infix notation.
+    When the expression is known, it is assigned to the C{Forward} variable using the '<<' operator.
+
+    Note: take care when assigning to C{Forward} not to overlook precedence of operators.
+    Specifically, '|' has a lower precedence than '<<', so that::
+        fwdExpr << a | b | c
+    will actually be evaluated as::
+        (fwdExpr << a) | b | c
+    thereby leaving b and c out as parseable alternatives.  It is recommended that you
+    explicitly group the values inserted into the C{Forward}::
+        fwdExpr << (a | b | c)
+    Converting to use the '<<=' operator instead will avoid this problem.
+
+    See L{ParseResults.pprint} for an example of a recursive parser created using
+    C{Forward}.
+    """
+    def __init__( self, other=None ):
+        super(Forward,self).__init__( other, savelist=False )
+
+    def __lshift__( self, other ):
+        if isinstance( other, basestring ):
+            other = ParserElement._literalStringClass(other)
+        self.expr = other
+        self.strRepr = None
+        self.mayIndexError = self.expr.mayIndexError
+        self.mayReturnEmpty = self.expr.mayReturnEmpty
+        self.setWhitespaceChars( self.expr.whiteChars )
+        self.skipWhitespace = self.expr.skipWhitespace
+        self.saveAsList = self.expr.saveAsList
+        self.ignoreExprs.extend(self.expr.ignoreExprs)
+        return self
+        
+    def __ilshift__(self, other):
+        return self << other
+    
+    def leaveWhitespace( self ):
+        self.skipWhitespace = False
+        return self
+
+    def streamline( self ):
+        if not self.streamlined:
+            self.streamlined = True
+            if self.expr is not None:
+                self.expr.streamline()
+        return self
+
+    def validate( self, validateTrace=[] ):
+        if self not in validateTrace:
+            tmp = validateTrace[:]+[self]
+            if self.expr is not None:
+                self.expr.validate(tmp)
+        self.checkRecursion([])
+
+    def __str__( self ):
+        if hasattr(self,"name"):
+            return self.name
+        return self.__class__.__name__ + ": ..."
+
+        # stubbed out for now - creates awful memory and perf issues
+        self._revertClass = self.__class__
+        self.__class__ = _ForwardNoRecurse
+        try:
+            if self.expr is not None:
+                retString = _ustr(self.expr)
+            else:
+                retString = "None"
+        finally:
+            self.__class__ = self._revertClass
+        return self.__class__.__name__ + ": " + retString
+
+    def copy(self):
+        if self.expr is not None:
+            return super(Forward,self).copy()
+        else:
+            ret = Forward()
+            ret <<= self
+            return ret
+
+class _ForwardNoRecurse(Forward):
+    def __str__( self ):
+        return "..."
+
+class TokenConverter(ParseElementEnhance):
+    """
+    Abstract subclass of C{ParseExpression}, for converting parsed results.
+    """
+    def __init__( self, expr, savelist=False ):
+        super(TokenConverter,self).__init__( expr )#, savelist )
+        self.saveAsList = False
+
+class Combine(TokenConverter):
+    """
+    Converter to concatenate all matching tokens to a single string.
+    By default, the matching patterns must also be contiguous in the input string;
+    this can be disabled by specifying C{'adjacent=False'} in the constructor.
+
+    Example::
+        real = Word(nums) + '.' + Word(nums)
+        print(real.parseString('3.1416')) # -> ['3', '.', '1416']
+        # will also erroneously match the following
+        print(real.parseString('3. 1416')) # -> ['3', '.', '1416']
+
+        real = Combine(Word(nums) + '.' + Word(nums))
+        print(real.parseString('3.1416')) # -> ['3.1416']
+        # no match when there are internal spaces
+        print(real.parseString('3. 1416')) # -> Exception: Expected W:(0123...)
+    """
+    def __init__( self, expr, joinString="", adjacent=True ):
+        super(Combine,self).__init__( expr )
+        # suppress whitespace-stripping in contained parse expressions, but re-enable it on the Combine itself
+        if adjacent:
+            self.leaveWhitespace()
+        self.adjacent = adjacent
+        self.skipWhitespace = True
+        self.joinString = joinString
+        self.callPreparse = True
+
+    def ignore( self, other ):
+        if self.adjacent:
+            ParserElement.ignore(self, other)
+        else:
+            super( Combine, self).ignore( other )
+        return self
+
+    def postParse( self, instring, loc, tokenlist ):
+        retToks = tokenlist.copy()
+        del retToks[:]
+        retToks += ParseResults([ "".join(tokenlist._asStringList(self.joinString)) ], modal=self.modalResults)
+
+        if self.resultsName and retToks.haskeys():
+            return [ retToks ]
+        else:
+            return retToks
+
+class Group(TokenConverter):
+    """
+    Converter to return the matched tokens as a list - useful for returning tokens of C{L{ZeroOrMore}} and C{L{OneOrMore}} expressions.
+
+    Example::
+        ident = Word(alphas)
+        num = Word(nums)
+        term = ident | num
+        func = ident + Optional(delimitedList(term))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', 'a', 'b', '100']
+
+        func = ident + Group(Optional(delimitedList(term)))
+        print(func.parseString("fn a,b,100"))  # -> ['fn', ['a', 'b', '100']]
+    """
+    def __init__( self, expr ):
+        super(Group,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        return [ tokenlist ]
+
+class Dict(TokenConverter):
+    """
+    Converter to return a repetitive expression as a list, but also as a dictionary.
+    Each element can also be referenced using the first token in the expression as its key.
+    Useful for tabular report scraping when the first column can be used as a item key.
+
+    Example::
+        data_word = Word(alphas)
+        label = data_word + FollowedBy(':')
+        attr_expr = Group(label + Suppress(':') + OneOrMore(data_word).setParseAction(' '.join))
+
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        
+        # print attributes as plain groups
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        # instead of OneOrMore(expr), parse using Dict(OneOrMore(Group(expr))) - Dict will auto-assign names
+        result = Dict(OneOrMore(Group(attr_expr))).parseString(text)
+        print(result.dump())
+        
+        # access named fields as dict entries, or output as dict
+        print(result['shape'])        
+        print(result.asDict())
+    prints::
+        ['shape', 'SQUARE', 'posn', 'upper left', 'color', 'light blue', 'texture', 'burlap']
+
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        {'color': 'light blue', 'posn': 'upper left', 'texture': 'burlap', 'shape': 'SQUARE'}
+    See more examples at L{ParseResults} of accessing fields by results name.
+    """
+    def __init__( self, expr ):
+        super(Dict,self).__init__( expr )
+        self.saveAsList = True
+
+    def postParse( self, instring, loc, tokenlist ):
+        for i,tok in enumerate(tokenlist):
+            if len(tok) == 0:
+                continue
+            ikey = tok[0]
+            if isinstance(ikey,int):
+                ikey = _ustr(tok[0]).strip()
+            if len(tok)==1:
+                tokenlist[ikey] = _ParseResultsWithOffset("",i)
+            elif len(tok)==2 and not isinstance(tok[1],ParseResults):
+                tokenlist[ikey] = _ParseResultsWithOffset(tok[1],i)
+            else:
+                dictvalue = tok.copy() #ParseResults(i)
+                del dictvalue[0]
+                if len(dictvalue)!= 1 or (isinstance(dictvalue,ParseResults) and dictvalue.haskeys()):
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue,i)
+                else:
+                    tokenlist[ikey] = _ParseResultsWithOffset(dictvalue[0],i)
+
+        if self.resultsName:
+            return [ tokenlist ]
+        else:
+            return tokenlist
+
+
+class Suppress(TokenConverter):
+    """
+    Converter for ignoring the results of a parsed expression.
+
+    Example::
+        source = "a, b, c,d"
+        wd = Word(alphas)
+        wd_list1 = wd + ZeroOrMore(',' + wd)
+        print(wd_list1.parseString(source))
+
+        # often, delimiters that are useful during parsing are just in the
+        # way afterward - use Suppress to keep them out of the parsed output
+        wd_list2 = wd + ZeroOrMore(Suppress(',') + wd)
+        print(wd_list2.parseString(source))
+    prints::
+        ['a', ',', 'b', ',', 'c', ',', 'd']
+        ['a', 'b', 'c', 'd']
+    (See also L{delimitedList}.)
+    """
+    def postParse( self, instring, loc, tokenlist ):
+        return []
+
+    def suppress( self ):
+        return self
+
+
+class OnlyOnce(object):
+    """
+    Wrapper for parse actions, to ensure they are only called once.
+    """
+    def __init__(self, methodCall):
+        self.callable = _trim_arity(methodCall)
+        self.called = False
+    def __call__(self,s,l,t):
+        if not self.called:
+            results = self.callable(s,l,t)
+            self.called = True
+            return results
+        raise ParseException(s,l,"")
+    def reset(self):
+        self.called = False
+
+def traceParseAction(f):
+    """
+    Decorator for debugging parse actions. 
+    
+    When the parse action is called, this decorator will print C{">> entering I{method-name}(line:I{current_source_line}, I{parse_location}, I{matched_tokens})".}
+    When the parse action completes, the decorator will print C{"<<"} followed by the returned value, or any exception that the parse action raised.
+
+    Example::
+        wd = Word(alphas)
+
+        @traceParseAction
+        def remove_duplicate_chars(tokens):
+            return ''.join(sorted(set(''.join(tokens)))
+
+        wds = OneOrMore(wd).setParseAction(remove_duplicate_chars)
+        print(wds.parseString("slkdjs sld sldd sdlf sdljf"))
+    prints::
+        >>entering remove_duplicate_chars(line: 'slkdjs sld sldd sdlf sdljf', 0, (['slkdjs', 'sld', 'sldd', 'sdlf', 'sdljf'], {}))
+        <<leaving remove_duplicate_chars (ret: 'dfjkls')
+        ['dfjkls']
+    """
+    f = _trim_arity(f)
+    def z(*paArgs):
+        thisFunc = f.__name__
+        s,l,t = paArgs[-3:]
+        if len(paArgs)>3:
+            thisFunc = paArgs[0].__class__.__name__ + '.' + thisFunc
+        sys.stderr.write( ">>entering %s(line: '%s', %d, %r)\n" % (thisFunc,line(l,s),l,t) )
+        try:
+            ret = f(*paArgs)
+        except Exception as exc:
+            sys.stderr.write( "<<leaving %s (exception: %s)\n" % (thisFunc,exc) )
+            raise
+        sys.stderr.write( "<<leaving %s (ret: %r)\n" % (thisFunc,ret) )
+        return ret
+    try:
+        z.__name__ = f.__name__
+    except AttributeError:
+        pass
+    return z
+
+#
+# global helpers
+#
+def delimitedList( expr, delim=",", combine=False ):
+    """
+    Helper to define a delimited list of expressions - the delimiter defaults to ','.
+    By default, the list elements and delimiters can have intervening whitespace, and
+    comments, but this can be overridden by passing C{combine=True} in the constructor.
+    If C{combine} is set to C{True}, the matching tokens are returned as a single token
+    string, with the delimiters included; otherwise, the matching tokens are returned
+    as a list of tokens, with the delimiters suppressed.
+
+    Example::
+        delimitedList(Word(alphas)).parseString("aa,bb,cc") # -> ['aa', 'bb', 'cc']
+        delimitedList(Word(hexnums), delim=':', combine=True).parseString("AA:BB:CC:DD:EE") # -> ['AA:BB:CC:DD:EE']
+    """
+    dlName = _ustr(expr)+" ["+_ustr(delim)+" "+_ustr(expr)+"]..."
+    if combine:
+        return Combine( expr + ZeroOrMore( delim + expr ) ).setName(dlName)
+    else:
+        return ( expr + ZeroOrMore( Suppress( delim ) + expr ) ).setName(dlName)
+
+def countedArray( expr, intExpr=None ):
+    """
+    Helper to define a counted list of expressions.
+    This helper defines a pattern of the form::
+        integer expr expr expr...
+    where the leading integer tells how many expr expressions follow.
+    The matched tokens returns the array of expr tokens as a list - the leading count token is suppressed.
+    
+    If C{intExpr} is specified, it should be a pyparsing expression that produces an integer value.
+
+    Example::
+        countedArray(Word(alphas)).parseString('2 ab cd ef')  # -> ['ab', 'cd']
+
+        # in this parser, the leading integer value is given in binary,
+        # '10' indicating that 2 values are in the array
+        binaryConstant = Word('01').setParseAction(lambda t: int(t[0], 2))
+        countedArray(Word(alphas), intExpr=binaryConstant).parseString('10 ab cd ef')  # -> ['ab', 'cd']
+    """
+    arrayExpr = Forward()
+    def countFieldParseAction(s,l,t):
+        n = t[0]
+        arrayExpr << (n and Group(And([expr]*n)) or Group(empty))
+        return []
+    if intExpr is None:
+        intExpr = Word(nums).setParseAction(lambda t:int(t[0]))
+    else:
+        intExpr = intExpr.copy()
+    intExpr.setName("arrayLen")
+    intExpr.addParseAction(countFieldParseAction, callDuringTry=True)
+    return ( intExpr + arrayExpr ).setName('(len) ' + _ustr(expr) + '...')
+
+def _flatten(L):
+    ret = []
+    for i in L:
+        if isinstance(i,list):
+            ret.extend(_flatten(i))
+        else:
+            ret.append(i)
+    return ret
+
+def matchPreviousLiteral(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousLiteral(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches a
+    previous literal, will also match the leading C{"1:1"} in C{"1:10"}.
+    If this is not desired, use C{matchPreviousExpr}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    def copyTokenToRepeater(s,l,t):
+        if t:
+            if len(t) == 1:
+                rep << t[0]
+            else:
+                # flatten t tokens
+                tflat = _flatten(t.asList())
+                rep << And(Literal(tt) for tt in tflat)
+        else:
+            rep << Empty()
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def matchPreviousExpr(expr):
+    """
+    Helper to define an expression that is indirectly defined from
+    the tokens matched in a previous expression, that is, it looks
+    for a 'repeat' of a previous expression.  For example::
+        first = Word(nums)
+        second = matchPreviousExpr(first)
+        matchExpr = first + ":" + second
+    will match C{"1:1"}, but not C{"1:2"}.  Because this matches by
+    expressions, will I{not} match the leading C{"1:1"} in C{"1:10"};
+    the expressions are evaluated first, and then compared, so
+    C{"1"} is compared with C{"10"}.
+    Do I{not} use with packrat parsing enabled.
+    """
+    rep = Forward()
+    e2 = expr.copy()
+    rep <<= e2
+    def copyTokenToRepeater(s,l,t):
+        matchTokens = _flatten(t.asList())
+        def mustMatchTheseTokens(s,l,t):
+            theseTokens = _flatten(t.asList())
+            if  theseTokens != matchTokens:
+                raise ParseException("",0,"")
+        rep.setParseAction( mustMatchTheseTokens, callDuringTry=True )
+    expr.addParseAction(copyTokenToRepeater, callDuringTry=True)
+    rep.setName('(prev) ' + _ustr(expr))
+    return rep
+
+def _escapeRegexRangeChars(s):
+    #~  escape these chars: ^-]
+    for c in r"\^-]":
+        s = s.replace(c,_bslash+c)
+    s = s.replace("\n",r"\n")
+    s = s.replace("\t",r"\t")
+    return _ustr(s)
+
+def oneOf( strs, caseless=False, useRegex=True ):
+    """
+    Helper to quickly define a set of alternative Literals, and makes sure to do
+    longest-first testing when there is a conflict, regardless of the input order,
+    but returns a C{L{MatchFirst}} for best performance.
+
+    Parameters:
+     - strs - a string of space-delimited literals, or a collection of string literals
+     - caseless - (default=C{False}) - treat all literals as caseless
+     - useRegex - (default=C{True}) - as an optimization, will generate a Regex
+          object; otherwise, will generate a C{MatchFirst} object (if C{caseless=True}, or
+          if creating a C{Regex} raises an exception)
+
+    Example::
+        comp_oper = oneOf("< = > <= >= !=")
+        var = Word(alphas)
+        number = Word(nums)
+        term = var | number
+        comparison_expr = term + comp_oper + term
+        print(comparison_expr.searchString("B = 12  AA=23 B<=AA AA>12"))
+    prints::
+        [['B', '=', '12'], ['AA', '=', '23'], ['B', '<=', 'AA'], ['AA', '>', '12']]
+    """
+    if caseless:
+        isequal = ( lambda a,b: a.upper() == b.upper() )
+        masks = ( lambda a,b: b.upper().startswith(a.upper()) )
+        parseElementClass = CaselessLiteral
+    else:
+        isequal = ( lambda a,b: a == b )
+        masks = ( lambda a,b: b.startswith(a) )
+        parseElementClass = Literal
+
+    symbols = []
+    if isinstance(strs,basestring):
+        symbols = strs.split()
+    elif isinstance(strs, collections.Iterable):
+        symbols = list(strs)
+    else:
+        warnings.warn("Invalid argument to oneOf, expected string or iterable",
+                SyntaxWarning, stacklevel=2)
+    if not symbols:
+        return NoMatch()
+
+    i = 0
+    while i < len(symbols)-1:
+        cur = symbols[i]
+        for j,other in enumerate(symbols[i+1:]):
+            if ( isequal(other, cur) ):
+                del symbols[i+j+1]
+                break
+            elif ( masks(cur, other) ):
+                del symbols[i+j+1]
+                symbols.insert(i,other)
+                cur = other
+                break
+        else:
+            i += 1
+
+    if not caseless and useRegex:
+        #~ print (strs,"->", "|".join( [ _escapeRegexChars(sym) for sym in symbols] ))
+        try:
+            if len(symbols)==len("".join(symbols)):
+                return Regex( "[%s]" % "".join(_escapeRegexRangeChars(sym) for sym in symbols) ).setName(' | '.join(symbols))
+            else:
+                return Regex( "|".join(re.escape(sym) for sym in symbols) ).setName(' | '.join(symbols))
+        except Exception:
+            warnings.warn("Exception creating Regex for oneOf, building MatchFirst",
+                    SyntaxWarning, stacklevel=2)
+
+
+    # last resort, just use MatchFirst
+    return MatchFirst(parseElementClass(sym) for sym in symbols).setName(' | '.join(symbols))
+
+def dictOf( key, value ):
+    """
+    Helper to easily and clearly define a dictionary by specifying the respective patterns
+    for the key and value.  Takes care of defining the C{L{Dict}}, C{L{ZeroOrMore}}, and C{L{Group}} tokens
+    in the proper order.  The key pattern can include delimiting markers or punctuation,
+    as long as they are suppressed, thereby leaving the significant key text.  The value
+    pattern can include named results, so that the C{Dict} results can include named token
+    fields.
+
+    Example::
+        text = "shape: SQUARE posn: upper left color: light blue texture: burlap"
+        attr_expr = (label + Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join))
+        print(OneOrMore(attr_expr).parseString(text).dump())
+        
+        attr_label = label
+        attr_value = Suppress(':') + OneOrMore(data_word, stopOn=label).setParseAction(' '.join)
+
+        # similar to Dict, but simpler call format
+        result = dictOf(attr_label, attr_value).parseString(text)
+        print(result.dump())
+        print(result['shape'])
+        print(result.shape)  # object attribute access works too
+        print(result.asDict())
+    prints::
+        [['shape', 'SQUARE'], ['posn', 'upper left'], ['color', 'light blue'], ['texture', 'burlap']]
+        - color: light blue
+        - posn: upper left
+        - shape: SQUARE
+        - texture: burlap
+        SQUARE
+        SQUARE
+        {'color': 'light blue', 'shape': 'SQUARE', 'posn': 'upper left', 'texture': 'burlap'}
+    """
+    return Dict( ZeroOrMore( Group ( key + value ) ) )
+
+def originalTextFor(expr, asString=True):
+    """
+    Helper to return the original, untokenized text for a given expression.  Useful to
+    restore the parsed fields of an HTML start tag into the raw tag text itself, or to
+    revert separate tokens with intervening whitespace back to the original matching
+    input text. By default, returns astring containing the original parsed text.  
+       
+    If the optional C{asString} argument is passed as C{False}, then the return value is a 
+    C{L{ParseResults}} containing any results names that were originally matched, and a 
+    single token containing the original matched text from the input string.  So if 
+    the expression passed to C{L{originalTextFor}} contains expressions with defined
+    results names, you must set C{asString} to C{False} if you want to preserve those
+    results name values.
+
+    Example::
+        src = "this is test <b> bold <i>text</i> </b> normal text "
+        for tag in ("b","i"):
+            opener,closer = makeHTMLTags(tag)
+            patt = originalTextFor(opener + SkipTo(closer) + closer)
+            print(patt.searchString(src)[0])
+    prints::
+        ['<b> bold <i>text</i> </b>']
+        ['<i>text</i>']
+    """
+    locMarker = Empty().setParseAction(lambda s,loc,t: loc)
+    endlocMarker = locMarker.copy()
+    endlocMarker.callPreparse = False
+    matchExpr = locMarker("_original_start") + expr + endlocMarker("_original_end")
+    if asString:
+        extractText = lambda s,l,t: s[t._original_start:t._original_end]
+    else:
+        def extractText(s,l,t):
+            t[:] = [s[t.pop('_original_start'):t.pop('_original_end')]]
+    matchExpr.setParseAction(extractText)
+    matchExpr.ignoreExprs = expr.ignoreExprs
+    return matchExpr
+
+def ungroup(expr): 
+    """
+    Helper to undo pyparsing's default grouping of And expressions, even
+    if all but one are non-empty.
+    """
+    return TokenConverter(expr).setParseAction(lambda t:t[0])
+
+def locatedExpr(expr):
+    """
+    Helper to decorate a returned token with its starting and ending locations in the input string.
+    This helper adds the following results names:
+     - locn_start = location where matched expression begins
+     - locn_end = location where matched expression ends
+     - value = the actual parsed results
+
+    Be careful if the input text contains C{<TAB>} characters, you may want to call
+    C{L{ParserElement.parseWithTabs}}
+
+    Example::
+        wd = Word(alphas)
+        for match in locatedExpr(wd).searchString("ljsdf123lksdjjf123lkkjj1222"):
+            print(match)
+    prints::
+        [[0, 'ljsdf', 5]]
+        [[8, 'lksdjjf', 15]]
+        [[18, 'lkkjj', 23]]
+    """
+    locator = Empty().setParseAction(lambda s,l,t: l)
+    return Group(locator("locn_start") + expr("value") + locator.copy().leaveWhitespace()("locn_end"))
+
+
+# convenience constants for positional expressions
+empty       = Empty().setName("empty")
+lineStart   = LineStart().setName("lineStart")
+lineEnd     = LineEnd().setName("lineEnd")
+stringStart = StringStart().setName("stringStart")
+stringEnd   = StringEnd().setName("stringEnd")
+
+_escapedPunc = Word( _bslash, r"\[]-*.$+^?()~ ", exact=2 ).setParseAction(lambda s,l,t:t[0][1])
+_escapedHexChar = Regex(r"\\0?[xX][0-9a-fA-F]+").setParseAction(lambda s,l,t:unichr(int(t[0].lstrip(r'\0x'),16)))
+_escapedOctChar = Regex(r"\\0[0-7]+").setParseAction(lambda s,l,t:unichr(int(t[0][1:],8)))
+_singleChar = _escapedPunc | _escapedHexChar | _escapedOctChar | Word(printables, excludeChars=r'\]', exact=1) | Regex(r"\w", re.UNICODE)
+_charRange = Group(_singleChar + Suppress("-") + _singleChar)
+_reBracketExpr = Literal("[") + Optional("^").setResultsName("negate") + Group( OneOrMore( _charRange | _singleChar ) ).setResultsName("body") + "]"
+
+def srange(s):
+    r"""
+    Helper to easily define string ranges for use in Word construction.  Borrows
+    syntax from regexp '[]' string range definitions::
+        srange("[0-9]")   -> "0123456789"
+        srange("[a-z]")   -> "abcdefghijklmnopqrstuvwxyz"
+        srange("[a-z$_]") -> "abcdefghijklmnopqrstuvwxyz$_"
+    The input string must be enclosed in []'s, and the returned string is the expanded
+    character set joined into a single string.
+    The values enclosed in the []'s may be:
+     - a single character
+     - an escaped character with a leading backslash (such as C{\-} or C{\]})
+     - an escaped hex character with a leading C{'\x'} (C{\x21}, which is a C{'!'} character) 
+         (C{\0x##} is also supported for backwards compatibility) 
+     - an escaped octal character with a leading C{'\0'} (C{\041}, which is a C{'!'} character)
+     - a range of any of the above, separated by a dash (C{'a-z'}, etc.)
+     - any combination of the above (C{'aeiouy'}, C{'a-zA-Z0-9_$'}, etc.)
+    """
+    _expanded = lambda p: p if not isinstance(p,ParseResults) else ''.join(unichr(c) for c in range(ord(p[0]),ord(p[1])+1))
+    try:
+        return "".join(_expanded(part) for part in _reBracketExpr.parseString(s).body)
+    except Exception:
+        return ""
+
+def matchOnlyAtCol(n):
+    """
+    Helper method for defining parse actions that require matching at a specific
+    column in the input text.
+    """
+    def verifyCol(strg,locn,toks):
+        if col(locn,strg) != n:
+            raise ParseException(strg,locn,"matched token not at column %d" % n)
+    return verifyCol
+
+def replaceWith(replStr):
+    """
+    Helper method for common parse actions that simply return a literal value.  Especially
+    useful when used with C{L{transformString<ParserElement.transformString>}()}.
+
+    Example::
+        num = Word(nums).setParseAction(lambda toks: int(toks[0]))
+        na = oneOf("N/A NA").setParseAction(replaceWith(math.nan))
+        term = na | num
+        
+        OneOrMore(term).parseString("324 234 N/A 234") # -> [324, 234, nan, 234]
+    """
+    return lambda s,l,t: [replStr]
+
+def removeQuotes(s,l,t):
+    """
+    Helper parse action for removing quotation marks from parsed quoted strings.
+
+    Example::
+        # by default, quotation marks are included in parsed results
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["'Now is the Winter of our Discontent'"]
+
+        # use removeQuotes to strip quotation marks from parsed results
+        quotedString.setParseAction(removeQuotes)
+        quotedString.parseString("'Now is the Winter of our Discontent'") # -> ["Now is the Winter of our Discontent"]
+    """
+    return t[0][1:-1]
+
+def tokenMap(func, *args):
+    """
+    Helper to define a parse action by mapping a function to all elements of a ParseResults list.If any additional 
+    args are passed, they are forwarded to the given function as additional arguments after
+    the token, as in C{hex_integer = Word(hexnums).setParseAction(tokenMap(int, 16))}, which will convert the
+    parsed data to an integer using base 16.
+
+    Example (compare the last to example in L{ParserElement.transformString}::
+        hex_ints = OneOrMore(Word(hexnums)).setParseAction(tokenMap(int, 16))
+        hex_ints.runTests('''
+            00 11 22 aa FF 0a 0d 1a
+            ''')
+        
+        upperword = Word(alphas).setParseAction(tokenMap(str.upper))
+        OneOrMore(upperword).runTests('''
+            my kingdom for a horse
+            ''')
+
+        wd = Word(alphas).setParseAction(tokenMap(str.title))
+        OneOrMore(wd).setParseAction(' '.join).runTests('''
+            now is the winter of our discontent made glorious summer by this sun of york
+            ''')
+    prints::
+        00 11 22 aa FF 0a 0d 1a
+        [0, 17, 34, 170, 255, 10, 13, 26]
+
+        my kingdom for a horse
+        ['MY', 'KINGDOM', 'FOR', 'A', 'HORSE']
+
+        now is the winter of our discontent made glorious summer by this sun of york
+        ['Now Is The Winter Of Our Discontent Made Glorious Summer By This Sun Of York']
+    """
+    def pa(s,l,t):
+        return [func(tokn, *args) for tokn in t]
+
+    try:
+        func_name = getattr(func, '__name__', 
+                            getattr(func, '__class__').__name__)
+    except Exception:
+        func_name = str(func)
+    pa.__name__ = func_name
+
+    return pa
+
+upcaseTokens = tokenMap(lambda t: _ustr(t).upper())
+"""(Deprecated) Helper parse action to convert tokens to upper case. Deprecated in favor of L{pyparsing_common.upcaseTokens}"""
+
+downcaseTokens = tokenMap(lambda t: _ustr(t).lower())
+"""(Deprecated) Helper parse action to convert tokens to lower case. Deprecated in favor of L{pyparsing_common.downcaseTokens}"""
+    
+def _makeTags(tagStr, xml):
+    """Internal helper to construct opening and closing tag expressions, given a tag name"""
+    if isinstance(tagStr,basestring):
+        resname = tagStr
+        tagStr = Keyword(tagStr, caseless=not xml)
+    else:
+        resname = tagStr.name
+
+    tagAttrName = Word(alphas,alphanums+"_-:")
+    if (xml):
+        tagAttrValue = dblQuotedString.copy().setParseAction( removeQuotes )
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName + Suppress("=") + tagAttrValue ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    else:
+        printablesLessRAbrack = "".join(c for c in printables if c not in ">")
+        tagAttrValue = quotedString.copy().setParseAction( removeQuotes ) | Word(printablesLessRAbrack)
+        openTag = Suppress("<") + tagStr("tag") + \
+                Dict(ZeroOrMore(Group( tagAttrName.setParseAction(downcaseTokens) + \
+                Optional( Suppress("=") + tagAttrValue ) ))) + \
+                Optional("/",default=[False]).setResultsName("empty").setParseAction(lambda s,l,t:t[0]=='/') + Suppress(">")
+    closeTag = Combine(_L("</") + tagStr + ">")
+
+    openTag = openTag.setResultsName("start"+"".join(resname.replace(":"," ").title().split())).setName("<%s>" % resname)
+    closeTag = closeTag.setResultsName("end"+"".join(resname.replace(":"," ").title().split())).setName("</%s>" % resname)
+    openTag.tag = resname
+    closeTag.tag = resname
+    return openTag, closeTag
+
+def makeHTMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for HTML, given a tag name. Matches
+    tags in either upper or lower case, attributes with namespaces and with quoted or unquoted values.
+
+    Example::
+        text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+        # makeHTMLTags returns pyparsing expressions for the opening and closing tags as a 2-tuple
+        a,a_end = makeHTMLTags("A")
+        link_expr = a + SkipTo(a_end)("link_text") + a_end
+        
+        for link in link_expr.searchString(text):
+            # attributes in the <A> tag (like "href" shown here) are also accessible as named results
+            print(link.link_text, '->', link.href)
+    prints::
+        pyparsing -> http://pyparsing.wikispaces.com
+    """
+    return _makeTags( tagStr, False )
+
+def makeXMLTags(tagStr):
+    """
+    Helper to construct opening and closing tag expressions for XML, given a tag name. Matches
+    tags only in the given upper/lower case.
+
+    Example: similar to L{makeHTMLTags}
+    """
+    return _makeTags( tagStr, True )
+
+def withAttribute(*args,**attrDict):
+    """
+    Helper to create a validating parse action to be used with start tags created
+    with C{L{makeXMLTags}} or C{L{makeHTMLTags}}. Use C{withAttribute} to qualify a starting tag
+    with a required attribute value, to avoid false matches on common tags such as
+    C{<TD>} or C{<DIV>}.
+
+    Call C{withAttribute} with a series of attribute names and values. Specify the list
+    of filter attributes names and values as:
+     - keyword arguments, as in C{(align="right")}, or
+     - as an explicit dict with C{**} operator, when an attribute name is also a Python
+          reserved word, as in C{**{"class":"Customer", "align":"right"}}
+     - a list of name-value tuples, as in ( ("ns1:class", "Customer"), ("ns2:align","right") )
+    For attribute names with a namespace prefix, you must use the second form.  Attribute
+    names are matched insensitive to upper/lower case.
+       
+    If just testing for C{class} (with or without a namespace), use C{L{withClass}}.
+
+    To verify that the attribute exists, but without specifying a value, pass
+    C{withAttribute.ANY_VALUE} as the value.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div type="grid">1 4 0 1 0</div>
+            <div type="graph">1,3 2,3 1,1</div>
+            <div>this has no type</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+
+        # only match div tag having a type attribute with value "grid"
+        div_grid = div().setParseAction(withAttribute(type="grid"))
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        # construct a match with any div tag having a type attribute, regardless of the value
+        div_any_type = div().setParseAction(withAttribute(type=withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    if args:
+        attrs = args[:]
+    else:
+        attrs = attrDict.items()
+    attrs = [(k,v) for k,v in attrs]
+    def pa(s,l,tokens):
+        for attrName,attrValue in attrs:
+            if attrName not in tokens:
+                raise ParseException(s,l,"no matching attribute " + attrName)
+            if attrValue != withAttribute.ANY_VALUE and tokens[attrName] != attrValue:
+                raise ParseException(s,l,"attribute '%s' has value '%s', must be '%s'" %
+                                            (attrName, tokens[attrName], attrValue))
+    return pa
+withAttribute.ANY_VALUE = object()
+
+def withClass(classname, namespace=''):
+    """
+    Simplified version of C{L{withAttribute}} when matching on a div class - made
+    difficult because C{class} is a reserved word in Python.
+
+    Example::
+        html = '''
+            <div>
+            Some text
+            <div class="grid">1 4 0 1 0</div>
+            <div class="graph">1,3 2,3 1,1</div>
+            <div>this <div> has no class</div>
+            </div>
+                
+        '''
+        div,div_end = makeHTMLTags("div")
+        div_grid = div().setParseAction(withClass("grid"))
+        
+        grid_expr = div_grid + SkipTo(div | div_end)("body")
+        for grid_header in grid_expr.searchString(html):
+            print(grid_header.body)
+        
+        div_any_type = div().setParseAction(withClass(withAttribute.ANY_VALUE))
+        div_expr = div_any_type + SkipTo(div | div_end)("body")
+        for div_header in div_expr.searchString(html):
+            print(div_header.body)
+    prints::
+        1 4 0 1 0
+
+        1 4 0 1 0
+        1,3 2,3 1,1
+    """
+    classattr = "%s:class" % namespace if namespace else "class"
+    return withAttribute(**{classattr : classname})        
+
+opAssoc = _Constants()
+opAssoc.LEFT = object()
+opAssoc.RIGHT = object()
+
+def infixNotation( baseExpr, opList, lpar=Suppress('('), rpar=Suppress(')') ):
+    """
+    Helper method for constructing grammars of expressions made up of
+    operators working in a precedence hierarchy.  Operators may be unary or
+    binary, left- or right-associative.  Parse actions can also be attached
+    to operator expressions. The generated parser will also recognize the use 
+    of parentheses to override operator precedences (see example below).
+    
+    Note: if you define a deep operator list, you may see performance issues
+    when using infixNotation. See L{ParserElement.enablePackrat} for a
+    mechanism to potentially improve your parser performance.
+
+    Parameters:
+     - baseExpr - expression representing the most basic element for the nested
+     - opList - list of tuples, one for each operator precedence level in the
+      expression grammar; each tuple is of the form
+      (opExpr, numTerms, rightLeftAssoc, parseAction), where:
+       - opExpr is the pyparsing expression for the operator;
+          may also be a string, which will be converted to a Literal;
+          if numTerms is 3, opExpr is a tuple of two expressions, for the
+          two operators separating the 3 terms
+       - numTerms is the number of terms for this operator (must
+          be 1, 2, or 3)
+       - rightLeftAssoc is the indicator whether the operator is
+          right or left associative, using the pyparsing-defined
+          constants C{opAssoc.RIGHT} and C{opAssoc.LEFT}.
+       - parseAction is the parse action to be associated with
+          expressions matching this operator expression (the
+          parse action tuple member may be omitted)
+     - lpar - expression for matching left-parentheses (default=C{Suppress('(')})
+     - rpar - expression for matching right-parentheses (default=C{Suppress(')')})
+
+    Example::
+        # simple example of four-function arithmetic with ints and variable names
+        integer = pyparsing_common.signed_integer
+        varname = pyparsing_common.identifier 
+        
+        arith_expr = infixNotation(integer | varname,
+            [
+            ('-', 1, opAssoc.RIGHT),
+            (oneOf('* /'), 2, opAssoc.LEFT),
+            (oneOf('+ -'), 2, opAssoc.LEFT),
+            ])
+        
+        arith_expr.runTests('''
+            5+3*6
+            (5+3)*6
+            -2--11
+            ''', fullDump=False)
+    prints::
+        5+3*6
+        [[5, '+', [3, '*', 6]]]
+
+        (5+3)*6
+        [[[5, '+', 3], '*', 6]]
+
+        -2--11
+        [[['-', 2], '-', ['-', 11]]]
+    """
+    ret = Forward()
+    lastExpr = baseExpr | ( lpar + ret + rpar )
+    for i,operDef in enumerate(opList):
+        opExpr,arity,rightLeftAssoc,pa = (operDef + (None,))[:4]
+        termName = "%s term" % opExpr if arity < 3 else "%s%s term" % opExpr
+        if arity == 3:
+            if opExpr is None or len(opExpr) != 2:
+                raise ValueError("if numterms=3, opExpr must be a tuple or list of two expressions")
+            opExpr1, opExpr2 = opExpr
+        thisExpr = Forward().setName(termName)
+        if rightLeftAssoc == opAssoc.LEFT:
+            if arity == 1:
+                matchExpr = FollowedBy(lastExpr + opExpr) + Group( lastExpr + OneOrMore( opExpr ) )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + lastExpr) + Group( lastExpr + OneOrMore( opExpr + lastExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr+lastExpr) + Group( lastExpr + OneOrMore(lastExpr) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr) + \
+                            Group( lastExpr + opExpr1 + lastExpr + opExpr2 + lastExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        elif rightLeftAssoc == opAssoc.RIGHT:
+            if arity == 1:
+                # try to avoid LR with this extra test
+                if not isinstance(opExpr, Optional):
+                    opExpr = Optional(opExpr)
+                matchExpr = FollowedBy(opExpr.expr + thisExpr) + Group( opExpr + thisExpr )
+            elif arity == 2:
+                if opExpr is not None:
+                    matchExpr = FollowedBy(lastExpr + opExpr + thisExpr) + Group( lastExpr + OneOrMore( opExpr + thisExpr ) )
+                else:
+                    matchExpr = FollowedBy(lastExpr + thisExpr) + Group( lastExpr + OneOrMore( thisExpr ) )
+            elif arity == 3:
+                matchExpr = FollowedBy(lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr) + \
+                            Group( lastExpr + opExpr1 + thisExpr + opExpr2 + thisExpr )
+            else:
+                raise ValueError("operator must be unary (1), binary (2), or ternary (3)")
+        else:
+            raise ValueError("operator must indicate right or left associativity")
+        if pa:
+            matchExpr.setParseAction( pa )
+        thisExpr <<= ( matchExpr.setName(termName) | lastExpr )
+        lastExpr = thisExpr
+    ret <<= lastExpr
+    return ret
+
+operatorPrecedence = infixNotation
+"""(Deprecated) Former name of C{L{infixNotation}}, will be dropped in a future release."""
+
+dblQuotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"').setName("string enclosed in double quotes")
+sglQuotedString = Combine(Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("string enclosed in single quotes")
+quotedString = Combine(Regex(r'"(?:[^"\n\r\\]|(?:"")|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*')+'"'|
+                       Regex(r"'(?:[^'\n\r\\]|(?:'')|(?:\\(?:[^x]|x[0-9a-fA-F]+)))*")+"'").setName("quotedString using single or double quotes")
+unicodeString = Combine(_L('u') + quotedString.copy()).setName("unicode string literal")
+
+def nestedExpr(opener="(", closer=")", content=None, ignoreExpr=quotedString.copy()):
+    """
+    Helper method for defining nested lists enclosed in opening and closing
+    delimiters ("(" and ")" are the default).
+
+    Parameters:
+     - opener - opening character for a nested list (default=C{"("}); can also be a pyparsing expression
+     - closer - closing character for a nested list (default=C{")"}); can also be a pyparsing expression
+     - content - expression for items within the nested lists (default=C{None})
+     - ignoreExpr - expression for ignoring opening and closing delimiters (default=C{quotedString})
+
+    If an expression is not provided for the content argument, the nested
+    expression will capture all whitespace-delimited content between delimiters
+    as a list of separate values.
+
+    Use the C{ignoreExpr} argument to define expressions that may contain
+    opening or closing characters that should not be treated as opening
+    or closing characters for nesting, such as quotedString or a comment
+    expression.  Specify multiple expressions using an C{L{Or}} or C{L{MatchFirst}}.
+    The default is L{quotedString}, but if no expressions are to be ignored,
+    then pass C{None} for this argument.
+
+    Example::
+        data_type = oneOf("void int short long char float double")
+        decl_data_type = Combine(data_type + Optional(Word('*')))
+        ident = Word(alphas+'_', alphanums+'_')
+        number = pyparsing_common.number
+        arg = Group(decl_data_type + ident)
+        LPAR,RPAR = map(Suppress, "()")
+
+        code_body = nestedExpr('{', '}', ignoreExpr=(quotedString | cStyleComment))
+
+        c_function = (decl_data_type("type") 
+                      + ident("name")
+                      + LPAR + Optional(delimitedList(arg), [])("args") + RPAR 
+                      + code_body("body"))
+        c_function.ignore(cStyleComment)
+        
+        source_code = '''
+            int is_odd(int x) { 
+                return (x%2); 
+            }
+                
+            int dec_to_hex(char hchar) { 
+                if (hchar >= '0' && hchar <= '9') { 
+                    return (ord(hchar)-ord('0')); 
+                } else { 
+                    return (10+ord(hchar)-ord('A'));
+                } 
+            }
+        '''
+        for func in c_function.searchString(source_code):
+            print("%(name)s (%(type)s) args: %(args)s" % func)
+
+    prints::
+        is_odd (int) args: [['int', 'x']]
+        dec_to_hex (int) args: [['char', 'hchar']]
+    """
+    if opener == closer:
+        raise ValueError("opening and closing strings cannot be the same")
+    if content is None:
+        if isinstance(opener,basestring) and isinstance(closer,basestring):
+            if len(opener) == 1 and len(closer)==1:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr +
+                                    CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (empty.copy()+CharsNotIn(opener+closer+ParserElement.DEFAULT_WHITE_CHARS
+                                ).setParseAction(lambda t:t[0].strip()))
+            else:
+                if ignoreExpr is not None:
+                    content = (Combine(OneOrMore(~ignoreExpr + 
+                                    ~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+                else:
+                    content = (Combine(OneOrMore(~Literal(opener) + ~Literal(closer) +
+                                    CharsNotIn(ParserElement.DEFAULT_WHITE_CHARS,exact=1))
+                                ).setParseAction(lambda t:t[0].strip()))
+        else:
+            raise ValueError("opening and closing arguments must be strings if no content expression is given")
+    ret = Forward()
+    if ignoreExpr is not None:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ignoreExpr | ret | content ) + Suppress(closer) )
+    else:
+        ret <<= Group( Suppress(opener) + ZeroOrMore( ret | content )  + Suppress(closer) )
+    ret.setName('nested %s%s expression' % (opener,closer))
+    return ret
+
+def indentedBlock(blockStatementExpr, indentStack, indent=True):
+    """
+    Helper method for defining space-delimited indentation blocks, such as
+    those used to define block statements in Python source code.
+
+    Parameters:
+     - blockStatementExpr - expression defining syntax of statement that
+            is repeated within the indented block
+     - indentStack - list created by caller to manage indentation stack
+            (multiple statementWithIndentedBlock expressions within a single grammar
+            should share a common indentStack)
+     - indent - boolean indicating whether block must be indented beyond the
+            the current level; set to False for block of left-most statements
+            (default=C{True})
+
+    A valid block must contain at least one C{blockStatement}.
+
+    Example::
+        data = '''
+        def A(z):
+          A1
+          B = 100
+          G = A2
+          A2
+          A3
+        B
+        def BB(a,b,c):
+          BB1
+          def BBA():
+            bba1
+            bba2
+            bba3
+        C
+        D
+        def spam(x,y):
+             def eggs(z):
+                 pass
+        '''
+
+
+        indentStack = [1]
+        stmt = Forward()
+
+        identifier = Word(alphas, alphanums)
+        funcDecl = ("def" + identifier + Group( "(" + Optional( delimitedList(identifier) ) + ")" ) + ":")
+        func_body = indentedBlock(stmt, indentStack)
+        funcDef = Group( funcDecl + func_body )
+
+        rvalue = Forward()
+        funcCall = Group(identifier + "(" + Optional(delimitedList(rvalue)) + ")")
+        rvalue << (funcCall | identifier | Word(nums))
+        assignment = Group(identifier + "=" + rvalue)
+        stmt << ( funcDef | assignment | identifier )
+
+        module_body = OneOrMore(stmt)
+
+        parseTree = module_body.parseString(data)
+        parseTree.pprint()
+    prints::
+        [['def',
+          'A',
+          ['(', 'z', ')'],
+          ':',
+          [['A1'], [['B', '=', '100']], [['G', '=', 'A2']], ['A2'], ['A3']]],
+         'B',
+         ['def',
+          'BB',
+          ['(', 'a', 'b', 'c', ')'],
+          ':',
+          [['BB1'], [['def', 'BBA', ['(', ')'], ':', [['bba1'], ['bba2'], ['bba3']]]]]],
+         'C',
+         'D',
+         ['def',
+          'spam',
+          ['(', 'x', 'y', ')'],
+          ':',
+          [[['def', 'eggs', ['(', 'z', ')'], ':', [['pass']]]]]]] 
+    """
+    def checkPeerIndent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if curCol != indentStack[-1]:
+            if curCol > indentStack[-1]:
+                raise ParseFatalException(s,l,"illegal nesting")
+            raise ParseException(s,l,"not a peer entry")
+
+    def checkSubIndent(s,l,t):
+        curCol = col(l,s)
+        if curCol > indentStack[-1]:
+            indentStack.append( curCol )
+        else:
+            raise ParseException(s,l,"not a subentry")
+
+    def checkUnindent(s,l,t):
+        if l >= len(s): return
+        curCol = col(l,s)
+        if not(indentStack and curCol < indentStack[-1] and curCol <= indentStack[-2]):
+            raise ParseException(s,l,"not an unindent")
+        indentStack.pop()
+
+    NL = OneOrMore(LineEnd().setWhitespaceChars("\t ").suppress())
+    INDENT = (Empty() + Empty().setParseAction(checkSubIndent)).setName('INDENT')
+    PEER   = Empty().setParseAction(checkPeerIndent).setName('')
+    UNDENT = Empty().setParseAction(checkUnindent).setName('UNINDENT')
+    if indent:
+        smExpr = Group( Optional(NL) +
+            #~ FollowedBy(blockStatementExpr) +
+            INDENT + (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) + UNDENT)
+    else:
+        smExpr = Group( Optional(NL) +
+            (OneOrMore( PEER + Group(blockStatementExpr) + Optional(NL) )) )
+    blockStatementExpr.ignore(_bslash + LineEnd())
+    return smExpr.setName('indented block')
+
+alphas8bit = srange(r"[\0xc0-\0xd6\0xd8-\0xf6\0xf8-\0xff]")
+punc8bit = srange(r"[\0xa1-\0xbf\0xd7\0xf7]")
+
+anyOpenTag,anyCloseTag = makeHTMLTags(Word(alphas,alphanums+"_:").setName('any tag'))
+_htmlEntityMap = dict(zip("gt lt amp nbsp quot apos".split(),'><& "\''))
+commonHTMLEntity = Regex('&(?P<entity>' + '|'.join(_htmlEntityMap.keys()) +");").setName("common HTML entity")
+def replaceHTMLEntity(t):
+    """Helper parser action to replace common HTML entities with their special characters"""
+    return _htmlEntityMap.get(t.entity)
+
+# it's easy to get these comment structures wrong - they're very common, so may as well make them available
+cStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/').setName("C style comment")
+"Comment of the form C{/* ... */}"
+
+htmlComment = Regex(r"").setName("HTML comment")
+"Comment of the form C{}"
+
+restOfLine = Regex(r".*").leaveWhitespace().setName("rest of line")
+dblSlashComment = Regex(r"//(?:\\\n|[^\n])*").setName("// comment")
+"Comment of the form C{// ... (to end of line)}"
+
+cppStyleComment = Combine(Regex(r"/\*(?:[^*]|\*(?!/))*") + '*/'| dblSlashComment).setName("C++ style comment")
+"Comment of either form C{L{cStyleComment}} or C{L{dblSlashComment}}"
+
+javaStyleComment = cppStyleComment
+"Same as C{L{cppStyleComment}}"
+
+pythonStyleComment = Regex(r"#.*").setName("Python style comment")
+"Comment of the form C{# ... (to end of line)}"
+
+_commasepitem = Combine(OneOrMore(Word(printables, excludeChars=',') +
+                                  Optional( Word(" \t") +
+                                            ~Literal(",") + ~LineEnd() ) ) ).streamline().setName("commaItem")
+commaSeparatedList = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("commaSeparatedList")
+"""(Deprecated) Predefined expression of 1 or more printable words or quoted strings, separated by commas.
+   This expression is deprecated in favor of L{pyparsing_common.comma_separated_list}."""
+
+# some other useful expressions - using lower-case class name since we are really using this as a namespace
+class pyparsing_common:
+    """
+    Here are some common low-level expressions that may be useful in jump-starting parser development:
+     - numeric forms (L{integers<integer>}, L{reals<real>}, L{scientific notation<sci_real>})
+     - common L{programming identifiers<identifier>}
+     - network addresses (L{MAC<mac_address>}, L{IPv4<ipv4_address>}, L{IPv6<ipv6_address>})
+     - ISO8601 L{dates<iso8601_date>} and L{datetime<iso8601_datetime>}
+     - L{UUID<uuid>}
+     - L{comma-separated list<comma_separated_list>}
+    Parse actions:
+     - C{L{convertToInteger}}
+     - C{L{convertToFloat}}
+     - C{L{convertToDate}}
+     - C{L{convertToDatetime}}
+     - C{L{stripHTMLTags}}
+     - C{L{upcaseTokens}}
+     - C{L{downcaseTokens}}
+
+    Example::
+        pyparsing_common.number.runTests('''
+            # any int or real number, returned as the appropriate type
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.fnumber.runTests('''
+            # any int or real number, returned as float
+            100
+            -100
+            +100
+            3.14159
+            6.02e23
+            1e-12
+            ''')
+
+        pyparsing_common.hex_integer.runTests('''
+            # hex numbers
+            100
+            FF
+            ''')
+
+        pyparsing_common.fraction.runTests('''
+            # fractions
+            1/2
+            -3/4
+            ''')
+
+        pyparsing_common.mixed_integer.runTests('''
+            # mixed fractions
+            1
+            1/2
+            -3/4
+            1-3/4
+            ''')
+
+        import uuid
+        pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+        pyparsing_common.uuid.runTests('''
+            # uuid
+            12345678-1234-5678-1234-567812345678
+            ''')
+    prints::
+        # any int or real number, returned as the appropriate type
+        100
+        [100]
+
+        -100
+        [-100]
+
+        +100
+        [100]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # any int or real number, returned as float
+        100
+        [100.0]
+
+        -100
+        [-100.0]
+
+        +100
+        [100.0]
+
+        3.14159
+        [3.14159]
+
+        6.02e23
+        [6.02e+23]
+
+        1e-12
+        [1e-12]
+
+        # hex numbers
+        100
+        [256]
+
+        FF
+        [255]
+
+        # fractions
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        # mixed fractions
+        1
+        [1]
+
+        1/2
+        [0.5]
+
+        -3/4
+        [-0.75]
+
+        1-3/4
+        [1.75]
+
+        # uuid
+        12345678-1234-5678-1234-567812345678
+        [UUID('12345678-1234-5678-1234-567812345678')]
+    """
+
+    convertToInteger = tokenMap(int)
+    """
+    Parse action for converting parsed integers to Python int
+    """
+
+    convertToFloat = tokenMap(float)
+    """
+    Parse action for converting parsed numbers to Python float
+    """
+
+    integer = Word(nums).setName("integer").setParseAction(convertToInteger)
+    """expression that parses an unsigned integer, returns an int"""
+
+    hex_integer = Word(hexnums).setName("hex integer").setParseAction(tokenMap(int,16))
+    """expression that parses a hexadecimal integer, returns an int"""
+
+    signed_integer = Regex(r'[+-]?\d+').setName("signed integer").setParseAction(convertToInteger)
+    """expression that parses an integer with optional leading sign, returns an int"""
+
+    fraction = (signed_integer().setParseAction(convertToFloat) + '/' + signed_integer().setParseAction(convertToFloat)).setName("fraction")
+    """fractional expression of an integer divided by an integer, returns a float"""
+    fraction.addParseAction(lambda t: t[0]/t[-1])
+
+    mixed_integer = (fraction | signed_integer + Optional(Optional('-').suppress() + fraction)).setName("fraction or mixed integer-fraction")
+    """mixed integer of the form 'integer - fraction', with optional leading integer, returns float"""
+    mixed_integer.addParseAction(sum)
+
+    real = Regex(r'[+-]?\d+\.\d*').setName("real number").setParseAction(convertToFloat)
+    """expression that parses a floating point number and returns a float"""
+
+    sci_real = Regex(r'[+-]?\d+([eE][+-]?\d+|\.\d*([eE][+-]?\d+)?)').setName("real number with scientific notation").setParseAction(convertToFloat)
+    """expression that parses a floating point number with optional scientific notation and returns a float"""
+
+    # streamlining this expression makes the docs nicer-looking
+    number = (sci_real | real | signed_integer).streamline()
+    """any numeric expression, returns the corresponding Python type"""
+
+    fnumber = Regex(r'[+-]?\d+\.?\d*([eE][+-]?\d+)?').setName("fnumber").setParseAction(convertToFloat)
+    """any int or real number, returned as float"""
+    
+    identifier = Word(alphas+'_', alphanums+'_').setName("identifier")
+    """typical code identifier (leading alpha or '_', followed by 0 or more alphas, nums, or '_')"""
+    
+    ipv4_address = Regex(r'(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})(\.(25[0-5]|2[0-4][0-9]|1?[0-9]{1,2})){3}').setName("IPv4 address")
+    "IPv4 address (C{0.0.0.0 - 255.255.255.255})"
+
+    _ipv6_part = Regex(r'[0-9a-fA-F]{1,4}').setName("hex_integer")
+    _full_ipv6_address = (_ipv6_part + (':' + _ipv6_part)*7).setName("full IPv6 address")
+    _short_ipv6_address = (Optional(_ipv6_part + (':' + _ipv6_part)*(0,6)) + "::" + Optional(_ipv6_part + (':' + _ipv6_part)*(0,6))).setName("short IPv6 address")
+    _short_ipv6_address.addCondition(lambda t: sum(1 for tt in t if pyparsing_common._ipv6_part.matches(tt)) < 8)
+    _mixed_ipv6_address = ("::ffff:" + ipv4_address).setName("mixed IPv6 address")
+    ipv6_address = Combine((_full_ipv6_address | _mixed_ipv6_address | _short_ipv6_address).setName("IPv6 address")).setName("IPv6 address")
+    "IPv6 address (long, short, or mixed form)"
+    
+    mac_address = Regex(r'[0-9a-fA-F]{2}([:.-])[0-9a-fA-F]{2}(?:\1[0-9a-fA-F]{2}){4}').setName("MAC address")
+    "MAC address xx:xx:xx:xx:xx (may also have '-' or '.' delimiters)"
+
+    @staticmethod
+    def convertToDate(fmt="%Y-%m-%d"):
+        """
+        Helper to create a parse action for converting parsed date string to Python datetime.date
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%d"})
+
+        Example::
+            date_expr = pyparsing_common.iso8601_date.copy()
+            date_expr.setParseAction(pyparsing_common.convertToDate())
+            print(date_expr.parseString("1999-12-31"))
+        prints::
+            [datetime.date(1999, 12, 31)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt).date()
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    @staticmethod
+    def convertToDatetime(fmt="%Y-%m-%dT%H:%M:%S.%f"):
+        """
+        Helper to create a parse action for converting parsed datetime string to Python datetime.datetime
+
+        Params -
+         - fmt - format to be passed to datetime.strptime (default=C{"%Y-%m-%dT%H:%M:%S.%f"})
+
+        Example::
+            dt_expr = pyparsing_common.iso8601_datetime.copy()
+            dt_expr.setParseAction(pyparsing_common.convertToDatetime())
+            print(dt_expr.parseString("1999-12-31T23:59:59.999"))
+        prints::
+            [datetime.datetime(1999, 12, 31, 23, 59, 59, 999000)]
+        """
+        def cvt_fn(s,l,t):
+            try:
+                return datetime.strptime(t[0], fmt)
+            except ValueError as ve:
+                raise ParseException(s, l, str(ve))
+        return cvt_fn
+
+    iso8601_date = Regex(r'(?P<year>\d{4})(?:-(?P<month>\d\d)(?:-(?P<day>\d\d))?)?').setName("ISO8601 date")
+    "ISO8601 date (C{yyyy-mm-dd})"
+
+    iso8601_datetime = Regex(r'(?P<year>\d{4})-(?P<month>\d\d)-(?P<day>\d\d)[T ](?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d(\.\d*)?)?)?(?P<tz>Z|[+-]\d\d:?\d\d)?').setName("ISO8601 datetime")
+    "ISO8601 datetime (C{yyyy-mm-ddThh:mm:ss.s(Z|+-00:00)}) - trailing seconds, milliseconds, and timezone optional; accepts separating C{'T'} or C{' '}"
+
+    uuid = Regex(r'[0-9a-fA-F]{8}(-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}').setName("UUID")
+    "UUID (C{xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx})"
+
+    _html_stripper = anyOpenTag.suppress() | anyCloseTag.suppress()
+    @staticmethod
+    def stripHTMLTags(s, l, tokens):
+        """
+        Parse action to remove HTML tags from web page HTML source
+
+        Example::
+            # strip HTML links from normal text 
+            text = '<td>More info at the <a href="http://pyparsing.wikispaces.com">pyparsing</a> wiki page</td>'
+            td,td_end = makeHTMLTags("TD")
+            table_text = td + SkipTo(td_end).setParseAction(pyparsing_common.stripHTMLTags)("body") + td_end
+            
+            print(table_text.parseString(text).body) # -> 'More info at the pyparsing wiki page'
+        """
+        return pyparsing_common._html_stripper.transformString(tokens[0])
+
+    _commasepitem = Combine(OneOrMore(~Literal(",") + ~LineEnd() + Word(printables, excludeChars=',') 
+                                        + Optional( White(" \t") ) ) ).streamline().setName("commaItem")
+    comma_separated_list = delimitedList( Optional( quotedString.copy() | _commasepitem, default="") ).setName("comma separated list")
+    """Predefined expression of 1 or more printable words or quoted strings, separated by commas."""
+
+    upcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).upper()))
+    """Parse action to convert tokens to upper case."""
+
+    downcaseTokens = staticmethod(tokenMap(lambda t: _ustr(t).lower()))
+    """Parse action to convert tokens to lower case."""
+
+
+if __name__ == "__main__":
+
+    selectToken    = CaselessLiteral("select")
+    fromToken      = CaselessLiteral("from")
+
+    ident          = Word(alphas, alphanums + "_$")
+
+    columnName     = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    columnNameList = Group(delimitedList(columnName)).setName("columns")
+    columnSpec     = ('*' | columnNameList)
+
+    tableName      = delimitedList(ident, ".", combine=True).setParseAction(upcaseTokens)
+    tableNameList  = Group(delimitedList(tableName)).setName("tables")
+    
+    simpleSQL      = selectToken("command") + columnSpec("columns") + fromToken + tableNameList("tables")
+
+    # demo runTests method, including embedded comments in test string
+    simpleSQL.runTests("""
+        # '*' as column list and dotted table name
+        select * from SYS.XYZZY
+
+        # caseless match on "SELECT", and casts back to "select"
+        SELECT * from XYZZY, ABC
+
+        # list of column names, and mixed case SELECT keyword
+        Select AA,BB,CC from Sys.dual
+
+        # multiple tables
+        Select A, B, C from Sys.dual, Table2
+
+        # invalid SELECT keyword - should fail
+        Xelect A, B, C from Sys.dual
+
+        # incomplete command - should fail
+        Select
+
+        # invalid column name - should fail
+        Select ^^^ frox Sys.dual
+
+        """)
+
+    pyparsing_common.number.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    # any int or real number, returned as float
+    pyparsing_common.fnumber.runTests("""
+        100
+        -100
+        +100
+        3.14159
+        6.02e23
+        1e-12
+        """)
+
+    pyparsing_common.hex_integer.runTests("""
+        100
+        FF
+        """)
+
+    import uuid
+    pyparsing_common.uuid.setParseAction(tokenMap(uuid.UUID))
+    pyparsing_common.uuid.runTests("""
+        12345678-1234-5678-1234-567812345678
+        """)
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/six.py b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/six.py
new file mode 100644
index 0000000..190c023
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/_vendor/six.py
@@ -0,0 +1,868 @@
+"""Utilities for writing code that runs on Python 2 and 3"""
+
+# Copyright (c) 2010-2015 Benjamin Peterson
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+from __future__ import absolute_import
+
+import functools
+import itertools
+import operator
+import sys
+import types
+
+__author__ = "Benjamin Peterson <benjamin@python.org>"
+__version__ = "1.10.0"
+
+
+# Useful for very coarse version differentiation.
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] == 3
+PY34 = sys.version_info[0:2] >= (3, 4)
+
+if PY3:
+    string_types = str,
+    integer_types = int,
+    class_types = type,
+    text_type = str
+    binary_type = bytes
+
+    MAXSIZE = sys.maxsize
+else:
+    string_types = basestring,
+    integer_types = (int, long)
+    class_types = (type, types.ClassType)
+    text_type = unicode
+    binary_type = str
+
+    if sys.platform.startswith("java"):
+        # Jython always uses 32 bits.
+        MAXSIZE = int((1 << 31) - 1)
+    else:
+        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
+        class X(object):
+
+            def __len__(self):
+                return 1 << 31
+        try:
+            len(X())
+        except OverflowError:
+            # 32-bit
+            MAXSIZE = int((1 << 31) - 1)
+        else:
+            # 64-bit
+            MAXSIZE = int((1 << 63) - 1)
+        del X
+
+
+def _add_doc(func, doc):
+    """Add documentation to a function."""
+    func.__doc__ = doc
+
+
+def _import_module(name):
+    """Import module, returning the module after the last dot."""
+    __import__(name)
+    return sys.modules[name]
+
+
+class _LazyDescr(object):
+
+    def __init__(self, name):
+        self.name = name
+
+    def __get__(self, obj, tp):
+        result = self._resolve()
+        setattr(obj, self.name, result)  # Invokes __set__.
+        try:
+            # This is a bit ugly, but it avoids running this again by
+            # removing this descriptor.
+            delattr(obj.__class__, self.name)
+        except AttributeError:
+            pass
+        return result
+
+
+class MovedModule(_LazyDescr):
+
+    def __init__(self, name, old, new=None):
+        super(MovedModule, self).__init__(name)
+        if PY3:
+            if new is None:
+                new = name
+            self.mod = new
+        else:
+            self.mod = old
+
+    def _resolve(self):
+        return _import_module(self.mod)
+
+    def __getattr__(self, attr):
+        _module = self._resolve()
+        value = getattr(_module, attr)
+        setattr(self, attr, value)
+        return value
+
+
+class _LazyModule(types.ModuleType):
+
+    def __init__(self, name):
+        super(_LazyModule, self).__init__(name)
+        self.__doc__ = self.__class__.__doc__
+
+    def __dir__(self):
+        attrs = ["__doc__", "__name__"]
+        attrs += [attr.name for attr in self._moved_attributes]
+        return attrs
+
+    # Subclasses should override this
+    _moved_attributes = []
+
+
+class MovedAttribute(_LazyDescr):
+
+    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
+        super(MovedAttribute, self).__init__(name)
+        if PY3:
+            if new_mod is None:
+                new_mod = name
+            self.mod = new_mod
+            if new_attr is None:
+                if old_attr is None:
+                    new_attr = name
+                else:
+                    new_attr = old_attr
+            self.attr = new_attr
+        else:
+            self.mod = old_mod
+            if old_attr is None:
+                old_attr = name
+            self.attr = old_attr
+
+    def _resolve(self):
+        module = _import_module(self.mod)
+        return getattr(module, self.attr)
+
+
+class _SixMetaPathImporter(object):
+
+    """
+    A meta path importer to import six.moves and its submodules.
+
+    This class implements a PEP302 finder and loader. It should be compatible
+    with Python 2.5 and all existing versions of Python3
+    """
+
+    def __init__(self, six_module_name):
+        self.name = six_module_name
+        self.known_modules = {}
+
+    def _add_module(self, mod, *fullnames):
+        for fullname in fullnames:
+            self.known_modules[self.name + "." + fullname] = mod
+
+    def _get_module(self, fullname):
+        return self.known_modules[self.name + "." + fullname]
+
+    def find_module(self, fullname, path=None):
+        if fullname in self.known_modules:
+            return self
+        return None
+
+    def __get_module(self, fullname):
+        try:
+            return self.known_modules[fullname]
+        except KeyError:
+            raise ImportError("This loader does not know module " + fullname)
+
+    def load_module(self, fullname):
+        try:
+            # in case of a reload
+            return sys.modules[fullname]
+        except KeyError:
+            pass
+        mod = self.__get_module(fullname)
+        if isinstance(mod, MovedModule):
+            mod = mod._resolve()
+        else:
+            mod.__loader__ = self
+        sys.modules[fullname] = mod
+        return mod
+
+    def is_package(self, fullname):
+        """
+        Return true, if the named module is a package.
+
+        We need this method to get correct spec objects with
+        Python 3.4 (see PEP451)
+        """
+        return hasattr(self.__get_module(fullname), "__path__")
+
+    def get_code(self, fullname):
+        """Return None
+
+        Required, if is_package is implemented"""
+        self.__get_module(fullname)  # eventually raises ImportError
+        return None
+    get_source = get_code  # same as get_code
+
+_importer = _SixMetaPathImporter(__name__)
+
+
+class _MovedItems(_LazyModule):
+
+    """Lazy loading of moved objects"""
+    __path__ = []  # mark as package
+
+
+_moved_attributes = [
+    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
+    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
+    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
+    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
+    MovedAttribute("intern", "__builtin__", "sys"),
+    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
+    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
+    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
+    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
+    MovedAttribute("reduce", "__builtin__", "functools"),
+    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
+    MovedAttribute("StringIO", "StringIO", "io"),
+    MovedAttribute("UserDict", "UserDict", "collections"),
+    MovedAttribute("UserList", "UserList", "collections"),
+    MovedAttribute("UserString", "UserString", "collections"),
+    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
+    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
+    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
+    MovedModule("builtins", "__builtin__"),
+    MovedModule("configparser", "ConfigParser"),
+    MovedModule("copyreg", "copy_reg"),
+    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
+    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
+    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
+    MovedModule("http_cookies", "Cookie", "http.cookies"),
+    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
+    MovedModule("html_parser", "HTMLParser", "html.parser"),
+    MovedModule("http_client", "httplib", "http.client"),
+    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
+    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
+    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
+    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
+    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
+    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
+    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
+    MovedModule("cPickle", "cPickle", "pickle"),
+    MovedModule("queue", "Queue"),
+    MovedModule("reprlib", "repr"),
+    MovedModule("socketserver", "SocketServer"),
+    MovedModule("_thread", "thread", "_thread"),
+    MovedModule("tkinter", "Tkinter"),
+    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
+    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
+    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
+    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
+    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
+    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
+    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
+    MovedModule("tkinter_colorchooser", "tkColorChooser",
+                "tkinter.colorchooser"),
+    MovedModule("tkinter_commondialog", "tkCommonDialog",
+                "tkinter.commondialog"),
+    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
+    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
+    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
+    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
+                "tkinter.simpledialog"),
+    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
+    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
+    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
+    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
+    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
+    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
+]
+# Add windows specific modules.
+if sys.platform == "win32":
+    _moved_attributes += [
+        MovedModule("winreg", "_winreg"),
+    ]
+
+for attr in _moved_attributes:
+    setattr(_MovedItems, attr.name, attr)
+    if isinstance(attr, MovedModule):
+        _importer._add_module(attr, "moves." + attr.name)
+del attr
+
+_MovedItems._moved_attributes = _moved_attributes
+
+moves = _MovedItems(__name__ + ".moves")
+_importer._add_module(moves, "moves")
+
+
+class Module_six_moves_urllib_parse(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_parse"""
+
+
+_urllib_parse_moved_attributes = [
+    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
+    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
+    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
+    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
+    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
+    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
+    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
+    MovedAttribute("quote", "urllib", "urllib.parse"),
+    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("unquote", "urllib", "urllib.parse"),
+    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
+    MovedAttribute("urlencode", "urllib", "urllib.parse"),
+    MovedAttribute("splitquery", "urllib", "urllib.parse"),
+    MovedAttribute("splittag", "urllib", "urllib.parse"),
+    MovedAttribute("splituser", "urllib", "urllib.parse"),
+    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
+    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
+]
+for attr in _urllib_parse_moved_attributes:
+    setattr(Module_six_moves_urllib_parse, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
+                      "moves.urllib_parse", "moves.urllib.parse")
+
+
+class Module_six_moves_urllib_error(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_error"""
+
+
+_urllib_error_moved_attributes = [
+    MovedAttribute("URLError", "urllib2", "urllib.error"),
+    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
+    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
+]
+for attr in _urllib_error_moved_attributes:
+    setattr(Module_six_moves_urllib_error, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
+                      "moves.urllib_error", "moves.urllib.error")
+
+
+class Module_six_moves_urllib_request(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_request"""
+
+
+_urllib_request_moved_attributes = [
+    MovedAttribute("urlopen", "urllib2", "urllib.request"),
+    MovedAttribute("install_opener", "urllib2", "urllib.request"),
+    MovedAttribute("build_opener", "urllib2", "urllib.request"),
+    MovedAttribute("pathname2url", "urllib", "urllib.request"),
+    MovedAttribute("url2pathname", "urllib", "urllib.request"),
+    MovedAttribute("getproxies", "urllib", "urllib.request"),
+    MovedAttribute("Request", "urllib2", "urllib.request"),
+    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
+    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
+    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
+    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
+    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
+    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
+    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
+    MovedAttribute("URLopener", "urllib", "urllib.request"),
+    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
+    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
+]
+for attr in _urllib_request_moved_attributes:
+    setattr(Module_six_moves_urllib_request, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
+                      "moves.urllib_request", "moves.urllib.request")
+
+
+class Module_six_moves_urllib_response(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_response"""
+
+
+_urllib_response_moved_attributes = [
+    MovedAttribute("addbase", "urllib", "urllib.response"),
+    MovedAttribute("addclosehook", "urllib", "urllib.response"),
+    MovedAttribute("addinfo", "urllib", "urllib.response"),
+    MovedAttribute("addinfourl", "urllib", "urllib.response"),
+]
+for attr in _urllib_response_moved_attributes:
+    setattr(Module_six_moves_urllib_response, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
+                      "moves.urllib_response", "moves.urllib.response")
+
+
+class Module_six_moves_urllib_robotparser(_LazyModule):
+
+    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
+
+
+_urllib_robotparser_moved_attributes = [
+    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
+]
+for attr in _urllib_robotparser_moved_attributes:
+    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
+del attr
+
+Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
+
+_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
+                      "moves.urllib_robotparser", "moves.urllib.robotparser")
+
+
+class Module_six_moves_urllib(types.ModuleType):
+
+    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
+    __path__ = []  # mark as package
+    parse = _importer._get_module("moves.urllib_parse")
+    error = _importer._get_module("moves.urllib_error")
+    request = _importer._get_module("moves.urllib_request")
+    response = _importer._get_module("moves.urllib_response")
+    robotparser = _importer._get_module("moves.urllib_robotparser")
+
+    def __dir__(self):
+        return ['parse', 'error', 'request', 'response', 'robotparser']
+
+_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
+                      "moves.urllib")
+
+
+def add_move(move):
+    """Add an item to six.moves."""
+    setattr(_MovedItems, move.name, move)
+
+
+def remove_move(name):
+    """Remove item from six.moves."""
+    try:
+        delattr(_MovedItems, name)
+    except AttributeError:
+        try:
+            del moves.__dict__[name]
+        except KeyError:
+            raise AttributeError("no such move, %r" % (name,))
+
+
+if PY3:
+    _meth_func = "__func__"
+    _meth_self = "__self__"
+
+    _func_closure = "__closure__"
+    _func_code = "__code__"
+    _func_defaults = "__defaults__"
+    _func_globals = "__globals__"
+else:
+    _meth_func = "im_func"
+    _meth_self = "im_self"
+
+    _func_closure = "func_closure"
+    _func_code = "func_code"
+    _func_defaults = "func_defaults"
+    _func_globals = "func_globals"
+
+
+try:
+    advance_iterator = next
+except NameError:
+    def advance_iterator(it):
+        return it.next()
+next = advance_iterator
+
+
+try:
+    callable = callable
+except NameError:
+    def callable(obj):
+        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
+
+
+if PY3:
+    def get_unbound_function(unbound):
+        return unbound
+
+    create_bound_method = types.MethodType
+
+    def create_unbound_method(func, cls):
+        return func
+
+    Iterator = object
+else:
+    def get_unbound_function(unbound):
+        return unbound.im_func
+
+    def create_bound_method(func, obj):
+        return types.MethodType(func, obj, obj.__class__)
+
+    def create_unbound_method(func, cls):
+        return types.MethodType(func, None, cls)
+
+    class Iterator(object):
+
+        def next(self):
+            return type(self).__next__(self)
+
+    callable = callable
+_add_doc(get_unbound_function,
+         """Get the function out of a possibly unbound function""")
+
+
+get_method_function = operator.attrgetter(_meth_func)
+get_method_self = operator.attrgetter(_meth_self)
+get_function_closure = operator.attrgetter(_func_closure)
+get_function_code = operator.attrgetter(_func_code)
+get_function_defaults = operator.attrgetter(_func_defaults)
+get_function_globals = operator.attrgetter(_func_globals)
+
+
+if PY3:
+    def iterkeys(d, **kw):
+        return iter(d.keys(**kw))
+
+    def itervalues(d, **kw):
+        return iter(d.values(**kw))
+
+    def iteritems(d, **kw):
+        return iter(d.items(**kw))
+
+    def iterlists(d, **kw):
+        return iter(d.lists(**kw))
+
+    viewkeys = operator.methodcaller("keys")
+
+    viewvalues = operator.methodcaller("values")
+
+    viewitems = operator.methodcaller("items")
+else:
+    def iterkeys(d, **kw):
+        return d.iterkeys(**kw)
+
+    def itervalues(d, **kw):
+        return d.itervalues(**kw)
+
+    def iteritems(d, **kw):
+        return d.iteritems(**kw)
+
+    def iterlists(d, **kw):
+        return d.iterlists(**kw)
+
+    viewkeys = operator.methodcaller("viewkeys")
+
+    viewvalues = operator.methodcaller("viewvalues")
+
+    viewitems = operator.methodcaller("viewitems")
+
+_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
+_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
+_add_doc(iteritems,
+         "Return an iterator over the (key, value) pairs of a dictionary.")
+_add_doc(iterlists,
+         "Return an iterator over the (key, [values]) pairs of a dictionary.")
+
+
+if PY3:
+    def b(s):
+        return s.encode("latin-1")
+
+    def u(s):
+        return s
+    unichr = chr
+    import struct
+    int2byte = struct.Struct(">B").pack
+    del struct
+    byte2int = operator.itemgetter(0)
+    indexbytes = operator.getitem
+    iterbytes = iter
+    import io
+    StringIO = io.StringIO
+    BytesIO = io.BytesIO
+    _assertCountEqual = "assertCountEqual"
+    if sys.version_info[1] <= 1:
+        _assertRaisesRegex = "assertRaisesRegexp"
+        _assertRegex = "assertRegexpMatches"
+    else:
+        _assertRaisesRegex = "assertRaisesRegex"
+        _assertRegex = "assertRegex"
+else:
+    def b(s):
+        return s
+    # Workaround for standalone backslash
+
+    def u(s):
+        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
+    unichr = unichr
+    int2byte = chr
+
+    def byte2int(bs):
+        return ord(bs[0])
+
+    def indexbytes(buf, i):
+        return ord(buf[i])
+    iterbytes = functools.partial(itertools.imap, ord)
+    import StringIO
+    StringIO = BytesIO = StringIO.StringIO
+    _assertCountEqual = "assertItemsEqual"
+    _assertRaisesRegex = "assertRaisesRegexp"
+    _assertRegex = "assertRegexpMatches"
+_add_doc(b, """Byte literal""")
+_add_doc(u, """Text literal""")
+
+
+def assertCountEqual(self, *args, **kwargs):
+    return getattr(self, _assertCountEqual)(*args, **kwargs)
+
+
+def assertRaisesRegex(self, *args, **kwargs):
+    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
+
+
+def assertRegex(self, *args, **kwargs):
+    return getattr(self, _assertRegex)(*args, **kwargs)
+
+
+if PY3:
+    exec_ = getattr(moves.builtins, "exec")
+
+    def reraise(tp, value, tb=None):
+        if value is None:
+            value = tp()
+        if value.__traceback__ is not tb:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    def exec_(_code_, _globs_=None, _locs_=None):
+        """Execute code in a namespace."""
+        if _globs_ is None:
+            frame = sys._getframe(1)
+            _globs_ = frame.f_globals
+            if _locs_ is None:
+                _locs_ = frame.f_locals
+            del frame
+        elif _locs_ is None:
+            _locs_ = _globs_
+        exec("""exec _code_ in _globs_, _locs_""")
+
+    exec_("""def reraise(tp, value, tb=None):
+    raise tp, value, tb
+""")
+
+
+if sys.version_info[:2] == (3, 2):
+    exec_("""def raise_from(value, from_value):
+    if from_value is None:
+        raise value
+    raise value from from_value
+""")
+elif sys.version_info[:2] > (3, 2):
+    exec_("""def raise_from(value, from_value):
+    raise value from from_value
+""")
+else:
+    def raise_from(value, from_value):
+        raise value
+
+
+print_ = getattr(moves.builtins, "print", None)
+if print_ is None:
+    def print_(*args, **kwargs):
+        """The new-style print function for Python 2.4 and 2.5."""
+        fp = kwargs.pop("file", sys.stdout)
+        if fp is None:
+            return
+
+        def write(data):
+            if not isinstance(data, basestring):
+                data = str(data)
+            # If the file has an encoding, encode unicode with it.
+            if (isinstance(fp, file) and
+                    isinstance(data, unicode) and
+                    fp.encoding is not None):
+                errors = getattr(fp, "errors", None)
+                if errors is None:
+                    errors = "strict"
+                data = data.encode(fp.encoding, errors)
+            fp.write(data)
+        want_unicode = False
+        sep = kwargs.pop("sep", None)
+        if sep is not None:
+            if isinstance(sep, unicode):
+                want_unicode = True
+            elif not isinstance(sep, str):
+                raise TypeError("sep must be None or a string")
+        end = kwargs.pop("end", None)
+        if end is not None:
+            if isinstance(end, unicode):
+                want_unicode = True
+            elif not isinstance(end, str):
+                raise TypeError("end must be None or a string")
+        if kwargs:
+            raise TypeError("invalid keyword arguments to print()")
+        if not want_unicode:
+            for arg in args:
+                if isinstance(arg, unicode):
+                    want_unicode = True
+                    break
+        if want_unicode:
+            newline = unicode("\n")
+            space = unicode(" ")
+        else:
+            newline = "\n"
+            space = " "
+        if sep is None:
+            sep = space
+        if end is None:
+            end = newline
+        for i, arg in enumerate(args):
+            if i:
+                write(sep)
+            write(arg)
+        write(end)
+if sys.version_info[:2] < (3, 3):
+    _print = print_
+
+    def print_(*args, **kwargs):
+        fp = kwargs.get("file", sys.stdout)
+        flush = kwargs.pop("flush", False)
+        _print(*args, **kwargs)
+        if flush and fp is not None:
+            fp.flush()
+
+_add_doc(reraise, """Reraise an exception.""")
+
+if sys.version_info[0:2] < (3, 4):
+    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
+              updated=functools.WRAPPER_UPDATES):
+        def wrapper(f):
+            f = functools.wraps(wrapped, assigned, updated)(f)
+            f.__wrapped__ = wrapped
+            return f
+        return wrapper
+else:
+    wraps = functools.wraps
+
+
+def with_metaclass(meta, *bases):
+    """Create a base class with a metaclass."""
+    # This requires a bit of explanation: the basic idea is to make a dummy
+    # metaclass for one level of class instantiation that replaces itself with
+    # the actual metaclass.
+    class metaclass(meta):
+
+        def __new__(cls, name, this_bases, d):
+            return meta(name, bases, d)
+    return type.__new__(metaclass, 'temporary_class', (), {})
+
+
+def add_metaclass(metaclass):
+    """Class decorator for creating a class with a metaclass."""
+    def wrapper(cls):
+        orig_vars = cls.__dict__.copy()
+        slots = orig_vars.get('__slots__')
+        if slots is not None:
+            if isinstance(slots, str):
+                slots = [slots]
+            for slots_var in slots:
+                orig_vars.pop(slots_var)
+        orig_vars.pop('__dict__', None)
+        orig_vars.pop('__weakref__', None)
+        return metaclass(cls.__name__, cls.__bases__, orig_vars)
+    return wrapper
+
+
+def python_2_unicode_compatible(klass):
+    """
+    A decorator that defines __unicode__ and __str__ methods under Python 2.
+    Under Python 3 it does nothing.
+
+    To support Python 2 and 3 with a single code base, define a __str__ method
+    returning text and apply this decorator to the class.
+    """
+    if PY2:
+        if '__str__' not in klass.__dict__:
+            raise ValueError("@python_2_unicode_compatible cannot be applied "
+                             "to %s because it doesn't define __str__()." %
+                             klass.__name__)
+        klass.__unicode__ = klass.__str__
+        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
+    return klass
+
+
+# Complete the moves implementation.
+# This code is at the end of this module to speed up module loading.
+# Turn this module into a package.
+__path__ = []  # required for PEP 302 and PEP 451
+__package__ = __name__  # see PEP 366 @ReservedAssignment
+if globals().get("__spec__") is not None:
+    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
+# Remove other six meta path importers, since they cause problems. This can
+# happen if six is removed from sys.modules and then reloaded. (Setuptools does
+# this for some reason.)
+if sys.meta_path:
+    for i, importer in enumerate(sys.meta_path):
+        # Here's some real nastiness: Another "instance" of the six module might
+        # be floating around. Therefore, we can't use isinstance() to check for
+        # the six meta path importer, since the other six instance will have
+        # inserted an importer with different class.
+        if (type(importer).__name__ == "_SixMetaPathImporter" and
+                importer.name == __name__):
+            del sys.meta_path[i]
+            break
+    del i, importer
+# Finally, add the importer to the meta path import hook.
+sys.meta_path.append(_importer)
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/extern/__init__.py b/venv1/lib/python3.5/site-packages/pkg_resources/extern/__init__.py
new file mode 100644
index 0000000..b4156fe
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/extern/__init__.py
@@ -0,0 +1,73 @@
+import sys
+
+
+class VendorImporter:
+    """
+    A PEP 302 meta path importer for finding optionally-vendored
+    or otherwise naturally-installed packages from root_name.
+    """
+
+    def __init__(self, root_name, vendored_names=(), vendor_pkg=None):
+        self.root_name = root_name
+        self.vendored_names = set(vendored_names)
+        self.vendor_pkg = vendor_pkg or root_name.replace('extern', '_vendor')
+
+    @property
+    def search_path(self):
+        """
+        Search first the vendor package then as a natural package.
+        """
+        yield self.vendor_pkg + '.'
+        yield ''
+
+    def find_module(self, fullname, path=None):
+        """
+        Return self when fullname starts with root_name and the
+        target module is one vendored through this importer.
+        """
+        root, base, target = fullname.partition(self.root_name + '.')
+        if root:
+            return
+        if not any(map(target.startswith, self.vendored_names)):
+            return
+        return self
+
+    def load_module(self, fullname):
+        """
+        Iterate over the search path to locate and load fullname.
+        """
+        root, base, target = fullname.partition(self.root_name + '.')
+        for prefix in self.search_path:
+            try:
+                extant = prefix + target
+                __import__(extant)
+                mod = sys.modules[extant]
+                sys.modules[fullname] = mod
+                # mysterious hack:
+                # Remove the reference to the extant package/module
+                # on later Python versions to cause relative imports
+                # in the vendor package to resolve the same modules
+                # as those going through this importer.
+                if sys.version_info > (3, 3):
+                    del sys.modules[extant]
+                return mod
+            except ImportError:
+                pass
+        else:
+            raise ImportError(
+                "The '{target}' package is required; "
+                "normally this is bundled with this package so if you get "
+                "this warning, consult the packager of your "
+                "distribution.".format(**locals())
+            )
+
+    def install(self):
+        """
+        Install this importer into sys.meta_path if not already present.
+        """
+        if self not in sys.meta_path:
+            sys.meta_path.append(self)
+
+
+names = 'packaging', 'pyparsing', 'six', 'appdirs'
+VendorImporter(__name__, names).install()
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..ed7a0a3
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/pkg_resources/extern/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/pkg_resources/py31compat.py b/venv1/lib/python3.5/site-packages/pkg_resources/py31compat.py
new file mode 100644
index 0000000..331a51b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/pkg_resources/py31compat.py
@@ -0,0 +1,22 @@
+import os
+import errno
+import sys
+
+
+def _makedirs_31(path, exist_ok=False):
+    try:
+        os.makedirs(path)
+    except OSError as exc:
+        if not exist_ok or exc.errno != errno.EEXIST:
+            raise
+
+
+# rely on compatibility behavior until mode considerations
+#  and exists_ok considerations are disentangled.
+# See https://github.com/pypa/setuptools/pull/1083#issuecomment-315168663
+needs_makedirs = (
+    sys.version_info < (3, 2, 5) or
+    (3, 3) <= sys.version_info < (3, 3, 6) or
+    (3, 4) <= sys.version_info < (3, 4, 1)
+)
+makedirs = _makedirs_31 if needs_makedirs else os.makedirs
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..ba3a46b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/DESCRIPTION.rst
@@ -0,0 +1,36 @@
+.. image:: https://img.shields.io/pypi/v/setuptools.svg
+   :target: https://pypi.org/project/setuptools
+
+.. image:: https://readthedocs.org/projects/setuptools/badge/?version=latest
+    :target: https://setuptools.readthedocs.io
+
+.. image:: https://img.shields.io/travis/pypa/setuptools/master.svg?label=Linux%20build%20%40%20Travis%20CI
+   :target: https://travis-ci.org/pypa/setuptools
+
+.. image:: https://img.shields.io/appveyor/ci/jaraco/setuptools/master.svg?label=Windows%20build%20%40%20Appveyor
+   :target: https://ci.appveyor.com/project/jaraco/setuptools/branch/master
+
+.. image:: https://img.shields.io/pypi/pyversions/setuptools.svg
+
+See the `Installation Instructions
+<https://packaging.python.org/installing/>`_ in the Python Packaging
+User's Guide for instructions on installing, upgrading, and uninstalling
+Setuptools.
+
+The project is `maintained at GitHub <https://github.com/pypa/setuptools>`_.
+
+Questions and comments should be directed to the `distutils-sig
+mailing list <http://mail.python.org/pipermail/distutils-sig/>`_.
+Bug reports and especially tested patches may be
+submitted directly to the `bug tracker
+<https://github.com/pypa/setuptools/issues>`_.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the setuptools project's codebases, issue trackers,
+chat rooms, and mailing lists is expected to follow the
+`PyPA Code of Conduct <https://www.pypa.io/en/latest/code-of-conduct/>`_.
+
+
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt
new file mode 100644
index 0000000..6e0693b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (C) 2016 Jason R Coombs <jaraco@jaraco.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA
new file mode 100644
index 0000000..c34f767
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/METADATA
@@ -0,0 +1,68 @@
+Metadata-Version: 2.0
+Name: setuptools
+Version: 38.2.4
+Summary: Easily download, build, install, upgrade, and uninstall Python packages
+Home-page: https://github.com/pypa/setuptools
+Author: Python Packaging Authority
+Author-email: distutils-sig@python.org
+License: UNKNOWN
+Description-Content-Type: text/x-rst; charset=UTF-8
+Keywords: CPAN PyPI distutils eggs package management
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Classifier: Topic :: System :: Archiving :: Packaging
+Classifier: Topic :: System :: Systems Administration
+Classifier: Topic :: Utilities
+Requires-Python: >=2.7,!=3.0.*,!=3.1.*,!=3.2.*
+Provides-Extra: certs
+Requires-Dist: certifi (==2016.9.26); extra == 'certs'
+Provides-Extra: ssl
+Requires-Dist: wincertstore (==0.2); sys_platform=='win32' and extra == 'ssl'
+
+.. image:: https://img.shields.io/pypi/v/setuptools.svg
+   :target: https://pypi.org/project/setuptools
+
+.. image:: https://readthedocs.org/projects/setuptools/badge/?version=latest
+    :target: https://setuptools.readthedocs.io
+
+.. image:: https://img.shields.io/travis/pypa/setuptools/master.svg?label=Linux%20build%20%40%20Travis%20CI
+   :target: https://travis-ci.org/pypa/setuptools
+
+.. image:: https://img.shields.io/appveyor/ci/jaraco/setuptools/master.svg?label=Windows%20build%20%40%20Appveyor
+   :target: https://ci.appveyor.com/project/jaraco/setuptools/branch/master
+
+.. image:: https://img.shields.io/pypi/pyversions/setuptools.svg
+
+See the `Installation Instructions
+<https://packaging.python.org/installing/>`_ in the Python Packaging
+User's Guide for instructions on installing, upgrading, and uninstalling
+Setuptools.
+
+The project is `maintained at GitHub <https://github.com/pypa/setuptools>`_.
+
+Questions and comments should be directed to the `distutils-sig
+mailing list <http://mail.python.org/pipermail/distutils-sig/>`_.
+Bug reports and especially tested patches may be
+submitted directly to the `bug tracker
+<https://github.com/pypa/setuptools/issues>`_.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the setuptools project's codebases, issue trackers,
+chat rooms, and mailing lists is expected to follow the
+`PyPA Code of Conduct <https://www.pypa.io/en/latest/code-of-conduct/>`_.
+
+
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new file mode 100644
index 0000000..2f08447
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+https://files.pythonhosted.org/packages/source/c/certifi/certifi-2016.9.26.tar.gz#md5=baa81e951a29958563689d868ef1064d
+https://files.pythonhosted.org/packages/source/w/wincertstore/wincertstore-0.2.zip#md5=ae728f2f007185648d0c7a8679b361e2
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt
new file mode 100644
index 0000000..4159fd0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/entry_points.txt
@@ -0,0 +1,65 @@
+[console_scripts]
+easy_install = setuptools.command.easy_install:main
+easy_install-3.6 = setuptools.command.easy_install:main
+
+[distutils.commands]
+alias = setuptools.command.alias:alias
+bdist_egg = setuptools.command.bdist_egg:bdist_egg
+bdist_rpm = setuptools.command.bdist_rpm:bdist_rpm
+bdist_wininst = setuptools.command.bdist_wininst:bdist_wininst
+build_clib = setuptools.command.build_clib:build_clib
+build_ext = setuptools.command.build_ext:build_ext
+build_py = setuptools.command.build_py:build_py
+develop = setuptools.command.develop:develop
+dist_info = setuptools.command.dist_info:dist_info
+easy_install = setuptools.command.easy_install:easy_install
+egg_info = setuptools.command.egg_info:egg_info
+install = setuptools.command.install:install
+install_egg_info = setuptools.command.install_egg_info:install_egg_info
+install_lib = setuptools.command.install_lib:install_lib
+install_scripts = setuptools.command.install_scripts:install_scripts
+register = setuptools.command.register:register
+rotate = setuptools.command.rotate:rotate
+saveopts = setuptools.command.saveopts:saveopts
+sdist = setuptools.command.sdist:sdist
+setopt = setuptools.command.setopt:setopt
+test = setuptools.command.test:test
+upload = setuptools.command.upload:upload
+upload_docs = setuptools.command.upload_docs:upload_docs
+
+[distutils.setup_keywords]
+convert_2to3_doctests = setuptools.dist:assert_string_list
+dependency_links = setuptools.dist:assert_string_list
+eager_resources = setuptools.dist:assert_string_list
+entry_points = setuptools.dist:check_entry_points
+exclude_package_data = setuptools.dist:check_package_data
+extras_require = setuptools.dist:check_extras
+include_package_data = setuptools.dist:assert_bool
+install_requires = setuptools.dist:check_requirements
+namespace_packages = setuptools.dist:check_nsp
+package_data = setuptools.dist:check_package_data
+packages = setuptools.dist:check_packages
+python_requires = setuptools.dist:check_specifier
+setup_requires = setuptools.dist:check_requirements
+test_loader = setuptools.dist:check_importable
+test_runner = setuptools.dist:check_importable
+test_suite = setuptools.dist:check_test_suite
+tests_require = setuptools.dist:check_requirements
+use_2to3 = setuptools.dist:assert_bool
+use_2to3_exclude_fixers = setuptools.dist:assert_string_list
+use_2to3_fixers = setuptools.dist:assert_string_list
+zip_safe = setuptools.dist:assert_bool
+
+[egg_info.writers]
+PKG-INFO = setuptools.command.egg_info:write_pkg_info
+dependency_links.txt = setuptools.command.egg_info:overwrite_arg
+depends.txt = setuptools.command.egg_info:warn_depends_obsolete
+eager_resources.txt = setuptools.command.egg_info:overwrite_arg
+entry_points.txt = setuptools.command.egg_info:write_entries
+namespace_packages.txt = setuptools.command.egg_info:overwrite_arg
+requires.txt = setuptools.command.egg_info:write_requirements
+top_level.txt = setuptools.command.egg_info:write_toplevel_names
+
+[setuptools.installation]
+eggsecutable = setuptools.command.easy_install:bootstrap
+
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json
new file mode 100644
index 0000000..8e0f1d9
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Operating System :: OS Independent", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6", "Topic :: Software Development :: Libraries :: Python Modules", "Topic :: System :: Archiving :: Packaging", "Topic :: System :: Systems Administration", "Topic :: Utilities"], "description_content_type": "text/x-rst; charset=UTF-8", "extensions": {"python.commands": {"wrap_console": {"easy_install": "setuptools.command.easy_install:main", "easy_install-3.6": "setuptools.command.easy_install:main"}}, "python.details": {"contacts": [{"email": "distutils-sig@python.org", "name": "Python Packaging Authority", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst", "license": "LICENSE.txt"}, "project_urls": {"Home": "https://github.com/pypa/setuptools"}}, "python.exports": {"console_scripts": {"easy_install": "setuptools.command.easy_install:main", "easy_install-3.6": "setuptools.command.easy_install:main"}, "distutils.commands": {"alias": "setuptools.command.alias:alias", "bdist_egg": "setuptools.command.bdist_egg:bdist_egg", "bdist_rpm": "setuptools.command.bdist_rpm:bdist_rpm", "bdist_wininst": "setuptools.command.bdist_wininst:bdist_wininst", "build_clib": "setuptools.command.build_clib:build_clib", "build_ext": "setuptools.command.build_ext:build_ext", "build_py": "setuptools.command.build_py:build_py", "develop": "setuptools.command.develop:develop", "dist_info": "setuptools.command.dist_info:dist_info", "easy_install": "setuptools.command.easy_install:easy_install", "egg_info": "setuptools.command.egg_info:egg_info", "install": "setuptools.command.install:install", "install_egg_info": "setuptools.command.install_egg_info:install_egg_info", "install_lib": "setuptools.command.install_lib:install_lib", "install_scripts": "setuptools.command.install_scripts:install_scripts", "register": "setuptools.command.register:register", "rotate": "setuptools.command.rotate:rotate", "saveopts": "setuptools.command.saveopts:saveopts", "sdist": "setuptools.command.sdist:sdist", "setopt": "setuptools.command.setopt:setopt", "test": "setuptools.command.test:test", "upload": "setuptools.command.upload:upload", "upload_docs": "setuptools.command.upload_docs:upload_docs"}, "distutils.setup_keywords": {"convert_2to3_doctests": "setuptools.dist:assert_string_list", "dependency_links": "setuptools.dist:assert_string_list", "eager_resources": "setuptools.dist:assert_string_list", "entry_points": "setuptools.dist:check_entry_points", "exclude_package_data": "setuptools.dist:check_package_data", "extras_require": "setuptools.dist:check_extras", "include_package_data": "setuptools.dist:assert_bool", "install_requires": "setuptools.dist:check_requirements", "namespace_packages": "setuptools.dist:check_nsp", "package_data": "setuptools.dist:check_package_data", "packages": "setuptools.dist:check_packages", "python_requires": "setuptools.dist:check_specifier", "setup_requires": "setuptools.dist:check_requirements", "test_loader": "setuptools.dist:check_importable", "test_runner": "setuptools.dist:check_importable", "test_suite": "setuptools.dist:check_test_suite", "tests_require": "setuptools.dist:check_requirements", "use_2to3": "setuptools.dist:assert_bool", "use_2to3_exclude_fixers": "setuptools.dist:assert_string_list", "use_2to3_fixers": "setuptools.dist:assert_string_list", "zip_safe": "setuptools.dist:assert_bool"}, "egg_info.writers": {"PKG-INFO": "setuptools.command.egg_info:write_pkg_info", "dependency_links.txt": "setuptools.command.egg_info:overwrite_arg", "depends.txt": "setuptools.command.egg_info:warn_depends_obsolete", "eager_resources.txt": "setuptools.command.egg_info:overwrite_arg", "entry_points.txt": "setuptools.command.egg_info:write_entries", "namespace_packages.txt": "setuptools.command.egg_info:overwrite_arg", "requires.txt": "setuptools.command.egg_info:write_requirements", "top_level.txt": "setuptools.command.egg_info:write_toplevel_names"}, "setuptools.installation": {"eggsecutable": "setuptools.command.easy_install:bootstrap"}}}, "extras": ["certs", "ssl"], "generator": "bdist_wheel (0.30.0)", "keywords": ["CPAN", "PyPI", "distutils", "eggs", "package", "management"], "metadata_version": "2.0", "name": "setuptools", "requires_python": ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*", "run_requires": [{"extra": "certs", "requires": ["certifi (==2016.9.26)"]}, {"environment": "sys_platform=='win32'", "extra": "ssl", "requires": ["wincertstore (==0.2)"]}], "summary": "Easily download, build, install, upgrade, and uninstall Python packages", "version": "38.2.4"}
\ No newline at end of file
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt
new file mode 100644
index 0000000..4577c6a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/top_level.txt
@@ -0,0 +1,3 @@
+easy_install
+pkg_resources
+setuptools
diff --git a/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools-38.2.4.dist-info/zip-safe
@@ -0,0 +1 @@
+
diff --git a/venv1/lib/python3.5/site-packages/setuptools/__init__.py b/venv1/lib/python3.5/site-packages/setuptools/__init__.py
new file mode 100644
index 0000000..7da47fb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/__init__.py
@@ -0,0 +1,180 @@
+"""Extensions to the 'distutils' for large or complex distributions"""
+
+import os
+import functools
+import distutils.core
+import distutils.filelist
+from distutils.util import convert_path
+from fnmatch import fnmatchcase
+
+from setuptools.extern.six.moves import filter, map
+
+import setuptools.version
+from setuptools.extension import Extension
+from setuptools.dist import Distribution, Feature
+from setuptools.depends import Require
+from . import monkey
+
+__all__ = [
+    'setup', 'Distribution', 'Feature', 'Command', 'Extension', 'Require',
+    'find_packages',
+]
+
+__version__ = setuptools.version.__version__
+
+bootstrap_install_from = None
+
+# If we run 2to3 on .py files, should we also convert docstrings?
+# Default: yes; assume that we can detect doctests reliably
+run_2to3_on_doctests = True
+# Standard package names for fixer packages
+lib2to3_fixer_packages = ['lib2to3.fixes']
+
+
+class PackageFinder(object):
+    """
+    Generate a list of all Python packages found within a directory
+    """
+
+    @classmethod
+    def find(cls, where='.', exclude=(), include=('*',)):
+        """Return a list all Python packages found within directory 'where'
+
+        'where' is the root directory which will be searched for packages.  It
+        should be supplied as a "cross-platform" (i.e. URL-style) path; it will
+        be converted to the appropriate local path syntax.
+
+        'exclude' is a sequence of package names to exclude; '*' can be used
+        as a wildcard in the names, such that 'foo.*' will exclude all
+        subpackages of 'foo' (but not 'foo' itself).
+
+        'include' is a sequence of package names to include.  If it's
+        specified, only the named packages will be included.  If it's not
+        specified, all found packages will be included.  'include' can contain
+        shell style wildcard patterns just like 'exclude'.
+        """
+
+        return list(cls._find_packages_iter(
+            convert_path(where),
+            cls._build_filter('ez_setup', '*__pycache__', *exclude),
+            cls._build_filter(*include)))
+
+    @classmethod
+    def _find_packages_iter(cls, where, exclude, include):
+        """
+        All the packages found in 'where' that pass the 'include' filter, but
+        not the 'exclude' filter.
+        """
+        for root, dirs, files in os.walk(where, followlinks=True):
+            # Copy dirs to iterate over it, then empty dirs.
+            all_dirs = dirs[:]
+            dirs[:] = []
+
+            for dir in all_dirs:
+                full_path = os.path.join(root, dir)
+                rel_path = os.path.relpath(full_path, where)
+                package = rel_path.replace(os.path.sep, '.')
+
+                # Skip directory trees that are not valid packages
+                if ('.' in dir or not cls._looks_like_package(full_path)):
+                    continue
+
+                # Should this package be included?
+                if include(package) and not exclude(package):
+                    yield package
+
+                # Keep searching subdirectories, as there may be more packages
+                # down there, even if the parent was excluded.
+                dirs.append(dir)
+
+    @staticmethod
+    def _looks_like_package(path):
+        """Does a directory look like a package?"""
+        return os.path.isfile(os.path.join(path, '__init__.py'))
+
+    @staticmethod
+    def _build_filter(*patterns):
+        """
+        Given a list of patterns, return a callable that will be true only if
+        the input matches at least one of the patterns.
+        """
+        return lambda name: any(fnmatchcase(name, pat=pat) for pat in patterns)
+
+
+class PEP420PackageFinder(PackageFinder):
+    @staticmethod
+    def _looks_like_package(path):
+        return True
+
+
+find_packages = PackageFinder.find
+
+
+def _install_setup_requires(attrs):
+    # Note: do not use `setuptools.Distribution` directly, as
+    # our PEP 517 backend patch `distutils.core.Distribution`.
+    dist = distutils.core.Distribution(dict(
+        (k, v) for k, v in attrs.items()
+        if k in ('dependency_links', 'setup_requires')
+    ))
+    # Honor setup.cfg's options.
+    dist.parse_config_files(ignore_option_errors=True)
+    if dist.setup_requires:
+        dist.fetch_build_eggs(dist.setup_requires)
+
+
+def setup(**attrs):
+    # Make sure we have any requirements needed to interpret 'attrs'.
+    _install_setup_requires(attrs)
+    return distutils.core.setup(**attrs)
+
+setup.__doc__ = distutils.core.setup.__doc__
+
+
+_Command = monkey.get_unpatched(distutils.core.Command)
+
+
+class Command(_Command):
+    __doc__ = _Command.__doc__
+
+    command_consumes_arguments = False
+
+    def __init__(self, dist, **kw):
+        """
+        Construct the command for dist, updating
+        vars(self) with any keyword parameters.
+        """
+        _Command.__init__(self, dist)
+        vars(self).update(kw)
+
+    def reinitialize_command(self, command, reinit_subcommands=0, **kw):
+        cmd = _Command.reinitialize_command(self, command, reinit_subcommands)
+        vars(cmd).update(kw)
+        return cmd
+
+
+def _find_all_simple(path):
+    """
+    Find all files under 'path'
+    """
+    results = (
+        os.path.join(base, file)
+        for base, dirs, files in os.walk(path, followlinks=True)
+        for file in files
+    )
+    return filter(os.path.isfile, results)
+
+
+def findall(dir=os.curdir):
+    """
+    Find all files under 'dir' and return the list of full filenames.
+    Unless dir is '.', return full filenames with dir prepended.
+    """
+    files = _find_all_simple(dir)
+    if dir == os.curdir:
+        make_rel = functools.partial(os.path.relpath, start=dir)
+        files = map(make_rel, files)
+    return list(files)
+
+
+monkey.patch_all()
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diff --git a/venv1/lib/python3.5/site-packages/setuptools/archive_util.py b/venv1/lib/python3.5/site-packages/setuptools/archive_util.py
new file mode 100644
index 0000000..8143604
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/archive_util.py
@@ -0,0 +1,173 @@
+"""Utilities for extracting common archive formats"""
+
+import zipfile
+import tarfile
+import os
+import shutil
+import posixpath
+import contextlib
+from distutils.errors import DistutilsError
+
+from pkg_resources import ensure_directory
+
+__all__ = [
+    "unpack_archive", "unpack_zipfile", "unpack_tarfile", "default_filter",
+    "UnrecognizedFormat", "extraction_drivers", "unpack_directory",
+]
+
+
+class UnrecognizedFormat(DistutilsError):
+    """Couldn't recognize the archive type"""
+
+
+def default_filter(src, dst):
+    """The default progress/filter callback; returns True for all files"""
+    return dst
+
+
+def unpack_archive(filename, extract_dir, progress_filter=default_filter,
+        drivers=None):
+    """Unpack `filename` to `extract_dir`, or raise ``UnrecognizedFormat``
+
+    `progress_filter` is a function taking two arguments: a source path
+    internal to the archive ('/'-separated), and a filesystem path where it
+    will be extracted.  The callback must return the desired extract path
+    (which may be the same as the one passed in), or else ``None`` to skip
+    that file or directory.  The callback can thus be used to report on the
+    progress of the extraction, as well as to filter the items extracted or
+    alter their extraction paths.
+
+    `drivers`, if supplied, must be a non-empty sequence of functions with the
+    same signature as this function (minus the `drivers` argument), that raise
+    ``UnrecognizedFormat`` if they do not support extracting the designated
+    archive type.  The `drivers` are tried in sequence until one is found that
+    does not raise an error, or until all are exhausted (in which case
+    ``UnrecognizedFormat`` is raised).  If you do not supply a sequence of
+    drivers, the module's ``extraction_drivers`` constant will be used, which
+    means that ``unpack_zipfile`` and ``unpack_tarfile`` will be tried, in that
+    order.
+    """
+    for driver in drivers or extraction_drivers:
+        try:
+            driver(filename, extract_dir, progress_filter)
+        except UnrecognizedFormat:
+            continue
+        else:
+            return
+    else:
+        raise UnrecognizedFormat(
+            "Not a recognized archive type: %s" % filename
+        )
+
+
+def unpack_directory(filename, extract_dir, progress_filter=default_filter):
+    """"Unpack" a directory, using the same interface as for archives
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a directory
+    """
+    if not os.path.isdir(filename):
+        raise UnrecognizedFormat("%s is not a directory" % filename)
+
+    paths = {
+        filename: ('', extract_dir),
+    }
+    for base, dirs, files in os.walk(filename):
+        src, dst = paths[base]
+        for d in dirs:
+            paths[os.path.join(base, d)] = src + d + '/', os.path.join(dst, d)
+        for f in files:
+            target = os.path.join(dst, f)
+            target = progress_filter(src + f, target)
+            if not target:
+                # skip non-files
+                continue
+            ensure_directory(target)
+            f = os.path.join(base, f)
+            shutil.copyfile(f, target)
+            shutil.copystat(f, target)
+
+
+def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
+    """Unpack zip `filename` to `extract_dir`
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
+    by ``zipfile.is_zipfile()``).  See ``unpack_archive()`` for an explanation
+    of the `progress_filter` argument.
+    """
+
+    if not zipfile.is_zipfile(filename):
+        raise UnrecognizedFormat("%s is not a zip file" % (filename,))
+
+    with zipfile.ZipFile(filename) as z:
+        for info in z.infolist():
+            name = info.filename
+
+            # don't extract absolute paths or ones with .. in them
+            if name.startswith('/') or '..' in name.split('/'):
+                continue
+
+            target = os.path.join(extract_dir, *name.split('/'))
+            target = progress_filter(name, target)
+            if not target:
+                continue
+            if name.endswith('/'):
+                # directory
+                ensure_directory(target)
+            else:
+                # file
+                ensure_directory(target)
+                data = z.read(info.filename)
+                with open(target, 'wb') as f:
+                    f.write(data)
+            unix_attributes = info.external_attr >> 16
+            if unix_attributes:
+                os.chmod(target, unix_attributes)
+
+
+def unpack_tarfile(filename, extract_dir, progress_filter=default_filter):
+    """Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
+
+    Raises ``UnrecognizedFormat`` if `filename` is not a tarfile (as determined
+    by ``tarfile.open()``).  See ``unpack_archive()`` for an explanation
+    of the `progress_filter` argument.
+    """
+    try:
+        tarobj = tarfile.open(filename)
+    except tarfile.TarError:
+        raise UnrecognizedFormat(
+            "%s is not a compressed or uncompressed tar file" % (filename,)
+        )
+    with contextlib.closing(tarobj):
+        # don't do any chowning!
+        tarobj.chown = lambda *args: None
+        for member in tarobj:
+            name = member.name
+            # don't extract absolute paths or ones with .. in them
+            if not name.startswith('/') and '..' not in name.split('/'):
+                prelim_dst = os.path.join(extract_dir, *name.split('/'))
+
+                # resolve any links and to extract the link targets as normal
+                # files
+                while member is not None and (member.islnk() or member.issym()):
+                    linkpath = member.linkname
+                    if member.issym():
+                        base = posixpath.dirname(member.name)
+                        linkpath = posixpath.join(base, linkpath)
+                        linkpath = posixpath.normpath(linkpath)
+                    member = tarobj._getmember(linkpath)
+
+                if member is not None and (member.isfile() or member.isdir()):
+                    final_dst = progress_filter(name, prelim_dst)
+                    if final_dst:
+                        if final_dst.endswith(os.sep):
+                            final_dst = final_dst[:-1]
+                        try:
+                            # XXX Ugh
+                            tarobj._extract_member(member, final_dst)
+                        except tarfile.ExtractError:
+                            # chown/chmod/mkfifo/mknode/makedev failed
+                            pass
+        return True
+
+
+extraction_drivers = unpack_directory, unpack_zipfile, unpack_tarfile
diff --git a/venv1/lib/python3.5/site-packages/setuptools/build_meta.py b/venv1/lib/python3.5/site-packages/setuptools/build_meta.py
new file mode 100644
index 0000000..609ea1e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/build_meta.py
@@ -0,0 +1,172 @@
+"""A PEP 517 interface to setuptools
+
+Previously, when a user or a command line tool (let's call it a "frontend")
+needed to make a request of setuptools to take a certain action, for
+example, generating a list of installation requirements, the frontend would
+would call "setup.py egg_info" or "setup.py bdist_wheel" on the command line.
+
+PEP 517 defines a different method of interfacing with setuptools. Rather
+than calling "setup.py" directly, the frontend should:
+
+  1. Set the current directory to the directory with a setup.py file
+  2. Import this module into a safe python interpreter (one in which
+     setuptools can potentially set global variables or crash hard).
+  3. Call one of the functions defined in PEP 517.
+
+What each function does is defined in PEP 517. However, here is a "casual"
+definition of the functions (this definition should not be relied on for
+bug reports or API stability):
+
+  - `build_wheel`: build a wheel in the folder and return the basename
+  - `get_requires_for_build_wheel`: get the `setup_requires` to build
+  - `prepare_metadata_for_build_wheel`: get the `install_requires`
+  - `build_sdist`: build an sdist in the folder and return the basename
+  - `get_requires_for_build_sdist`: get the `setup_requires` to build
+
+Again, this is not a formal definition! Just a "taste" of the module.
+"""
+
+import os
+import sys
+import tokenize
+import shutil
+import contextlib
+
+import setuptools
+import distutils
+
+
+class SetupRequirementsError(BaseException):
+    def __init__(self, specifiers):
+        self.specifiers = specifiers
+
+
+class Distribution(setuptools.dist.Distribution):
+    def fetch_build_eggs(self, specifiers):
+        raise SetupRequirementsError(specifiers)
+
+    @classmethod
+    @contextlib.contextmanager
+    def patch(cls):
+        """
+        Replace
+        distutils.dist.Distribution with this class
+        for the duration of this context.
+        """
+        orig = distutils.core.Distribution
+        distutils.core.Distribution = cls
+        try:
+            yield
+        finally:
+            distutils.core.Distribution = orig
+
+
+def _run_setup(setup_script='setup.py'):
+    # Note that we can reuse our build directory between calls
+    # Correctness comes first, then optimization later
+    __file__ = setup_script
+    __name__ = '__main__'
+    f = getattr(tokenize, 'open', open)(__file__)
+    code = f.read().replace('\\r\\n', '\\n')
+    f.close()
+    exec(compile(code, __file__, 'exec'), locals())
+
+
+def _fix_config(config_settings):
+    config_settings = config_settings or {}
+    config_settings.setdefault('--global-option', [])
+    return config_settings
+
+
+def _get_build_requires(config_settings):
+    config_settings = _fix_config(config_settings)
+    requirements = ['setuptools', 'wheel']
+
+    sys.argv = sys.argv[:1] + ['egg_info'] + \
+        config_settings["--global-option"]
+    try:
+        with Distribution.patch():
+            _run_setup()
+    except SetupRequirementsError as e:
+        requirements += e.specifiers
+
+    return requirements
+
+
+def _get_immediate_subdirectories(a_dir):
+    return [name for name in os.listdir(a_dir)
+            if os.path.isdir(os.path.join(a_dir, name))]
+
+
+def get_requires_for_build_wheel(config_settings=None):
+    config_settings = _fix_config(config_settings)
+    return _get_build_requires(config_settings)
+
+
+def get_requires_for_build_sdist(config_settings=None):
+    config_settings = _fix_config(config_settings)
+    return _get_build_requires(config_settings)
+
+
+def prepare_metadata_for_build_wheel(metadata_directory, config_settings=None):
+    sys.argv = sys.argv[:1] + ['dist_info', '--egg-base', metadata_directory]
+    _run_setup()
+    
+    dist_info_directory = metadata_directory
+    while True:    
+        dist_infos = [f for f in os.listdir(dist_info_directory)
+                      if f.endswith('.dist-info')]
+
+        if len(dist_infos) == 0 and \
+                len(_get_immediate_subdirectories(dist_info_directory)) == 1:
+            dist_info_directory = os.path.join(
+                dist_info_directory, os.listdir(dist_info_directory)[0])
+            continue
+
+        assert len(dist_infos) == 1
+        break
+
+    # PEP 517 requires that the .dist-info directory be placed in the
+    # metadata_directory. To comply, we MUST copy the directory to the root
+    if dist_info_directory != metadata_directory:
+        shutil.move(
+            os.path.join(dist_info_directory, dist_infos[0]),
+            metadata_directory)
+        shutil.rmtree(dist_info_directory, ignore_errors=True)
+
+    return dist_infos[0]
+
+
+def build_wheel(wheel_directory, config_settings=None,
+                metadata_directory=None):
+    config_settings = _fix_config(config_settings)
+    wheel_directory = os.path.abspath(wheel_directory)
+    sys.argv = sys.argv[:1] + ['bdist_wheel'] + \
+        config_settings["--global-option"]
+    _run_setup()
+    if wheel_directory != 'dist':
+        shutil.rmtree(wheel_directory)
+        shutil.copytree('dist', wheel_directory)
+
+    wheels = [f for f in os.listdir(wheel_directory)
+              if f.endswith('.whl')]
+
+    assert len(wheels) == 1
+    return wheels[0]
+
+
+def build_sdist(sdist_directory, config_settings=None):
+    config_settings = _fix_config(config_settings)
+    sdist_directory = os.path.abspath(sdist_directory)
+    sys.argv = sys.argv[:1] + ['sdist'] + \
+        config_settings["--global-option"]
+    _run_setup()
+    if sdist_directory != 'dist':
+        shutil.rmtree(sdist_directory)
+        shutil.copytree('dist', sdist_directory)
+
+    sdists = [f for f in os.listdir(sdist_directory)
+              if f.endswith('.tar.gz')]
+
+    assert len(sdists) == 1
+    return sdists[0]
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diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/__init__.py b/venv1/lib/python3.5/site-packages/setuptools/command/__init__.py
new file mode 100644
index 0000000..fe619e2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/__init__.py
@@ -0,0 +1,18 @@
+__all__ = [
+    'alias', 'bdist_egg', 'bdist_rpm', 'build_ext', 'build_py', 'develop',
+    'easy_install', 'egg_info', 'install', 'install_lib', 'rotate', 'saveopts',
+    'sdist', 'setopt', 'test', 'install_egg_info', 'install_scripts',
+    'register', 'bdist_wininst', 'upload_docs', 'upload', 'build_clib',
+    'dist_info',
+]
+
+from distutils.command.bdist import bdist
+import sys
+
+from setuptools.command import install_scripts
+
+if 'egg' not in bdist.format_commands:
+    bdist.format_command['egg'] = ('bdist_egg', "Python .egg file")
+    bdist.format_commands.append('egg')
+
+del bdist, sys
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diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/alias.py b/venv1/lib/python3.5/site-packages/setuptools/command/alias.py
new file mode 100644
index 0000000..4532b1c
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/alias.py
@@ -0,0 +1,80 @@
+from distutils.errors import DistutilsOptionError
+
+from setuptools.extern.six.moves import map
+
+from setuptools.command.setopt import edit_config, option_base, config_file
+
+
+def shquote(arg):
+    """Quote an argument for later parsing by shlex.split()"""
+    for c in '"', "'", "\\", "#":
+        if c in arg:
+            return repr(arg)
+    if arg.split() != [arg]:
+        return repr(arg)
+    return arg
+
+
+class alias(option_base):
+    """Define a shortcut that invokes one or more commands"""
+
+    description = "define a shortcut to invoke one or more commands"
+    command_consumes_arguments = True
+
+    user_options = [
+        ('remove', 'r', 'remove (unset) the alias'),
+    ] + option_base.user_options
+
+    boolean_options = option_base.boolean_options + ['remove']
+
+    def initialize_options(self):
+        option_base.initialize_options(self)
+        self.args = None
+        self.remove = None
+
+    def finalize_options(self):
+        option_base.finalize_options(self)
+        if self.remove and len(self.args) != 1:
+            raise DistutilsOptionError(
+                "Must specify exactly one argument (the alias name) when "
+                "using --remove"
+            )
+
+    def run(self):
+        aliases = self.distribution.get_option_dict('aliases')
+
+        if not self.args:
+            print("Command Aliases")
+            print("---------------")
+            for alias in aliases:
+                print("setup.py alias", format_alias(alias, aliases))
+            return
+
+        elif len(self.args) == 1:
+            alias, = self.args
+            if self.remove:
+                command = None
+            elif alias in aliases:
+                print("setup.py alias", format_alias(alias, aliases))
+                return
+            else:
+                print("No alias definition found for %r" % alias)
+                return
+        else:
+            alias = self.args[0]
+            command = ' '.join(map(shquote, self.args[1:]))
+
+        edit_config(self.filename, {'aliases': {alias: command}}, self.dry_run)
+
+
+def format_alias(name, aliases):
+    source, command = aliases[name]
+    if source == config_file('global'):
+        source = '--global-config '
+    elif source == config_file('user'):
+        source = '--user-config '
+    elif source == config_file('local'):
+        source = ''
+    else:
+        source = '--filename=%r' % source
+    return source + name + ' ' + command
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/bdist_egg.py b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_egg.py
new file mode 100644
index 0000000..5fdb62d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_egg.py
@@ -0,0 +1,496 @@
+"""setuptools.command.bdist_egg
+
+Build .egg distributions"""
+
+from distutils.errors import DistutilsSetupError
+from distutils.dir_util import remove_tree, mkpath
+from distutils import log
+from types import CodeType
+import sys
+import os
+import re
+import textwrap
+import marshal
+
+from setuptools.extern import six
+
+from pkg_resources import get_build_platform, Distribution, ensure_directory
+from pkg_resources import EntryPoint
+from setuptools.extension import Library
+from setuptools import Command
+
+try:
+    # Python 2.7 or >=3.2
+    from sysconfig import get_path, get_python_version
+
+    def _get_purelib():
+        return get_path("purelib")
+except ImportError:
+    from distutils.sysconfig import get_python_lib, get_python_version
+
+    def _get_purelib():
+        return get_python_lib(False)
+
+
+def strip_module(filename):
+    if '.' in filename:
+        filename = os.path.splitext(filename)[0]
+    if filename.endswith('module'):
+        filename = filename[:-6]
+    return filename
+
+def sorted_walk(dir):
+    """Do os.walk in a reproducible way,
+    independent of indeterministic filesystem readdir order
+    """
+    for base, dirs, files in os.walk(dir):
+        dirs.sort()
+        files.sort()
+        yield base, dirs, files
+
+def write_stub(resource, pyfile):
+    _stub_template = textwrap.dedent("""
+        def __bootstrap__():
+            global __bootstrap__, __loader__, __file__
+            import sys, pkg_resources, imp
+            __file__ = pkg_resources.resource_filename(__name__, %r)
+            __loader__ = None; del __bootstrap__, __loader__
+            imp.load_dynamic(__name__,__file__)
+        __bootstrap__()
+        """).lstrip()
+    with open(pyfile, 'w') as f:
+        f.write(_stub_template % resource)
+
+
+class bdist_egg(Command):
+    description = "create an \"egg\" distribution"
+
+    user_options = [
+        ('bdist-dir=', 'b',
+         "temporary directory for creating the distribution"),
+        ('plat-name=', 'p', "platform name to embed in generated filenames "
+                            "(default: %s)" % get_build_platform()),
+        ('exclude-source-files', None,
+         "remove all .py files from the generated egg"),
+        ('keep-temp', 'k',
+         "keep the pseudo-installation tree around after " +
+         "creating the distribution archive"),
+        ('dist-dir=', 'd',
+         "directory to put final built distributions in"),
+        ('skip-build', None,
+         "skip rebuilding everything (for testing/debugging)"),
+    ]
+
+    boolean_options = [
+        'keep-temp', 'skip-build', 'exclude-source-files'
+    ]
+
+    def initialize_options(self):
+        self.bdist_dir = None
+        self.plat_name = None
+        self.keep_temp = 0
+        self.dist_dir = None
+        self.skip_build = 0
+        self.egg_output = None
+        self.exclude_source_files = None
+
+    def finalize_options(self):
+        ei_cmd = self.ei_cmd = self.get_finalized_command("egg_info")
+        self.egg_info = ei_cmd.egg_info
+
+        if self.bdist_dir is None:
+            bdist_base = self.get_finalized_command('bdist').bdist_base
+            self.bdist_dir = os.path.join(bdist_base, 'egg')
+
+        if self.plat_name is None:
+            self.plat_name = get_build_platform()
+
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
+
+        if self.egg_output is None:
+
+            # Compute filename of the output egg
+            basename = Distribution(
+                None, None, ei_cmd.egg_name, ei_cmd.egg_version,
+                get_python_version(),
+                self.distribution.has_ext_modules() and self.plat_name
+            ).egg_name()
+
+            self.egg_output = os.path.join(self.dist_dir, basename + '.egg')
+
+    def do_install_data(self):
+        # Hack for packages that install data to install's --install-lib
+        self.get_finalized_command('install').install_lib = self.bdist_dir
+
+        site_packages = os.path.normcase(os.path.realpath(_get_purelib()))
+        old, self.distribution.data_files = self.distribution.data_files, []
+
+        for item in old:
+            if isinstance(item, tuple) and len(item) == 2:
+                if os.path.isabs(item[0]):
+                    realpath = os.path.realpath(item[0])
+                    normalized = os.path.normcase(realpath)
+                    if normalized == site_packages or normalized.startswith(
+                        site_packages + os.sep
+                    ):
+                        item = realpath[len(site_packages) + 1:], item[1]
+                        # XXX else: raise ???
+            self.distribution.data_files.append(item)
+
+        try:
+            log.info("installing package data to %s", self.bdist_dir)
+            self.call_command('install_data', force=0, root=None)
+        finally:
+            self.distribution.data_files = old
+
+    def get_outputs(self):
+        return [self.egg_output]
+
+    def call_command(self, cmdname, **kw):
+        """Invoke reinitialized command `cmdname` with keyword args"""
+        for dirname in INSTALL_DIRECTORY_ATTRS:
+            kw.setdefault(dirname, self.bdist_dir)
+        kw.setdefault('skip_build', self.skip_build)
+        kw.setdefault('dry_run', self.dry_run)
+        cmd = self.reinitialize_command(cmdname, **kw)
+        self.run_command(cmdname)
+        return cmd
+
+    def run(self):
+        # Generate metadata first
+        self.run_command("egg_info")
+        # We run install_lib before install_data, because some data hacks
+        # pull their data path from the install_lib command.
+        log.info("installing library code to %s", self.bdist_dir)
+        instcmd = self.get_finalized_command('install')
+        old_root = instcmd.root
+        instcmd.root = None
+        if self.distribution.has_c_libraries() and not self.skip_build:
+            self.run_command('build_clib')
+        cmd = self.call_command('install_lib', warn_dir=0)
+        instcmd.root = old_root
+
+        all_outputs, ext_outputs = self.get_ext_outputs()
+        self.stubs = []
+        to_compile = []
+        for (p, ext_name) in enumerate(ext_outputs):
+            filename, ext = os.path.splitext(ext_name)
+            pyfile = os.path.join(self.bdist_dir, strip_module(filename) +
+                                  '.py')
+            self.stubs.append(pyfile)
+            log.info("creating stub loader for %s", ext_name)
+            if not self.dry_run:
+                write_stub(os.path.basename(ext_name), pyfile)
+            to_compile.append(pyfile)
+            ext_outputs[p] = ext_name.replace(os.sep, '/')
+
+        if to_compile:
+            cmd.byte_compile(to_compile)
+        if self.distribution.data_files:
+            self.do_install_data()
+
+        # Make the EGG-INFO directory
+        archive_root = self.bdist_dir
+        egg_info = os.path.join(archive_root, 'EGG-INFO')
+        self.mkpath(egg_info)
+        if self.distribution.scripts:
+            script_dir = os.path.join(egg_info, 'scripts')
+            log.info("installing scripts to %s", script_dir)
+            self.call_command('install_scripts', install_dir=script_dir,
+                              no_ep=1)
+
+        self.copy_metadata_to(egg_info)
+        native_libs = os.path.join(egg_info, "native_libs.txt")
+        if all_outputs:
+            log.info("writing %s", native_libs)
+            if not self.dry_run:
+                ensure_directory(native_libs)
+                libs_file = open(native_libs, 'wt')
+                libs_file.write('\n'.join(all_outputs))
+                libs_file.write('\n')
+                libs_file.close()
+        elif os.path.isfile(native_libs):
+            log.info("removing %s", native_libs)
+            if not self.dry_run:
+                os.unlink(native_libs)
+
+        write_safety_flag(
+            os.path.join(archive_root, 'EGG-INFO'), self.zip_safe()
+        )
+
+        if os.path.exists(os.path.join(self.egg_info, 'depends.txt')):
+            log.warn(
+                "WARNING: 'depends.txt' will not be used by setuptools 0.6!\n"
+                "Use the install_requires/extras_require setup() args instead."
+            )
+
+        if self.exclude_source_files:
+            self.zap_pyfiles()
+
+        # Make the archive
+        make_zipfile(self.egg_output, archive_root, verbose=self.verbose,
+                     dry_run=self.dry_run, mode=self.gen_header())
+        if not self.keep_temp:
+            remove_tree(self.bdist_dir, dry_run=self.dry_run)
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, 'dist_files', []).append(
+            ('bdist_egg', get_python_version(), self.egg_output))
+
+    def zap_pyfiles(self):
+        log.info("Removing .py files from temporary directory")
+        for base, dirs, files in walk_egg(self.bdist_dir):
+            for name in files:
+                path = os.path.join(base, name)
+
+                if name.endswith('.py'):
+                    log.debug("Deleting %s", path)
+                    os.unlink(path)
+
+                if base.endswith('__pycache__'):
+                    path_old = path
+
+                    pattern = r'(?P<name>.+)\.(?P<magic>[^.]+)\.pyc'
+                    m = re.match(pattern, name)
+                    path_new = os.path.join(base, os.pardir, m.group('name') + '.pyc')
+                    log.info("Renaming file from [%s] to [%s]" % (path_old, path_new))
+                    try:
+                        os.remove(path_new)
+                    except OSError:
+                        pass
+                    os.rename(path_old, path_new)
+
+
+    def zip_safe(self):
+        safe = getattr(self.distribution, 'zip_safe', None)
+        if safe is not None:
+            return safe
+        log.warn("zip_safe flag not set; analyzing archive contents...")
+        return analyze_egg(self.bdist_dir, self.stubs)
+
+    def gen_header(self):
+        epm = EntryPoint.parse_map(self.distribution.entry_points or '')
+        ep = epm.get('setuptools.installation', {}).get('eggsecutable')
+        if ep is None:
+            return 'w'  # not an eggsecutable, do it the usual way.
+
+        if not ep.attrs or ep.extras:
+            raise DistutilsSetupError(
+                "eggsecutable entry point (%r) cannot have 'extras' "
+                "or refer to a module" % (ep,)
+            )
+
+        pyver = sys.version[:3]
+        pkg = ep.module_name
+        full = '.'.join(ep.attrs)
+        base = ep.attrs[0]
+        basename = os.path.basename(self.egg_output)
+
+        header = (
+            "#!/bin/sh\n"
+            'if [ `basename $0` = "%(basename)s" ]\n'
+            'then exec python%(pyver)s -c "'
+            "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
+            "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
+            '" "$@"\n'
+            'else\n'
+            '  echo $0 is not the correct name for this egg file.\n'
+            '  echo Please rename it back to %(basename)s and try again.\n'
+            '  exec false\n'
+            'fi\n'
+        ) % locals()
+
+        if not self.dry_run:
+            mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
+            f = open(self.egg_output, 'w')
+            f.write(header)
+            f.close()
+        return 'a'
+
+    def copy_metadata_to(self, target_dir):
+        "Copy metadata (egg info) to the target_dir"
+        # normalize the path (so that a forward-slash in egg_info will
+        # match using startswith below)
+        norm_egg_info = os.path.normpath(self.egg_info)
+        prefix = os.path.join(norm_egg_info, '')
+        for path in self.ei_cmd.filelist.files:
+            if path.startswith(prefix):
+                target = os.path.join(target_dir, path[len(prefix):])
+                ensure_directory(target)
+                self.copy_file(path, target)
+
+    def get_ext_outputs(self):
+        """Get a list of relative paths to C extensions in the output distro"""
+
+        all_outputs = []
+        ext_outputs = []
+
+        paths = {self.bdist_dir: ''}
+        for base, dirs, files in sorted_walk(self.bdist_dir):
+            for filename in files:
+                if os.path.splitext(filename)[1].lower() in NATIVE_EXTENSIONS:
+                    all_outputs.append(paths[base] + filename)
+            for filename in dirs:
+                paths[os.path.join(base, filename)] = (paths[base] +
+                                                       filename + '/')
+
+        if self.distribution.has_ext_modules():
+            build_cmd = self.get_finalized_command('build_ext')
+            for ext in build_cmd.extensions:
+                if isinstance(ext, Library):
+                    continue
+                fullname = build_cmd.get_ext_fullname(ext.name)
+                filename = build_cmd.get_ext_filename(fullname)
+                if not os.path.basename(filename).startswith('dl-'):
+                    if os.path.exists(os.path.join(self.bdist_dir, filename)):
+                        ext_outputs.append(filename)
+
+        return all_outputs, ext_outputs
+
+
+NATIVE_EXTENSIONS = dict.fromkeys('.dll .so .dylib .pyd'.split())
+
+
+def walk_egg(egg_dir):
+    """Walk an unpacked egg's contents, skipping the metadata directory"""
+    walker = sorted_walk(egg_dir)
+    base, dirs, files = next(walker)
+    if 'EGG-INFO' in dirs:
+        dirs.remove('EGG-INFO')
+    yield base, dirs, files
+    for bdf in walker:
+        yield bdf
+
+
+def analyze_egg(egg_dir, stubs):
+    # check for existing flag in EGG-INFO
+    for flag, fn in safety_flags.items():
+        if os.path.exists(os.path.join(egg_dir, 'EGG-INFO', fn)):
+            return flag
+    if not can_scan():
+        return False
+    safe = True
+    for base, dirs, files in walk_egg(egg_dir):
+        for name in files:
+            if name.endswith('.py') or name.endswith('.pyw'):
+                continue
+            elif name.endswith('.pyc') or name.endswith('.pyo'):
+                # always scan, even if we already know we're not safe
+                safe = scan_module(egg_dir, base, name, stubs) and safe
+    return safe
+
+
+def write_safety_flag(egg_dir, safe):
+    # Write or remove zip safety flag file(s)
+    for flag, fn in safety_flags.items():
+        fn = os.path.join(egg_dir, fn)
+        if os.path.exists(fn):
+            if safe is None or bool(safe) != flag:
+                os.unlink(fn)
+        elif safe is not None and bool(safe) == flag:
+            f = open(fn, 'wt')
+            f.write('\n')
+            f.close()
+
+
+safety_flags = {
+    True: 'zip-safe',
+    False: 'not-zip-safe',
+}
+
+
+def scan_module(egg_dir, base, name, stubs):
+    """Check whether module possibly uses unsafe-for-zipfile stuff"""
+
+    filename = os.path.join(base, name)
+    if filename[:-1] in stubs:
+        return True  # Extension module
+    pkg = base[len(egg_dir) + 1:].replace(os.sep, '.')
+    module = pkg + (pkg and '.' or '') + os.path.splitext(name)[0]
+    if sys.version_info < (3, 3):
+        skip = 8  # skip magic & date
+    else:
+        skip = 12  # skip magic & date & file size
+    f = open(filename, 'rb')
+    f.read(skip)
+    code = marshal.load(f)
+    f.close()
+    safe = True
+    symbols = dict.fromkeys(iter_symbols(code))
+    for bad in ['__file__', '__path__']:
+        if bad in symbols:
+            log.warn("%s: module references %s", module, bad)
+            safe = False
+    if 'inspect' in symbols:
+        for bad in [
+            'getsource', 'getabsfile', 'getsourcefile', 'getfile'
+            'getsourcelines', 'findsource', 'getcomments', 'getframeinfo',
+            'getinnerframes', 'getouterframes', 'stack', 'trace'
+        ]:
+            if bad in symbols:
+                log.warn("%s: module MAY be using inspect.%s", module, bad)
+                safe = False
+    return safe
+
+
+def iter_symbols(code):
+    """Yield names and strings used by `code` and its nested code objects"""
+    for name in code.co_names:
+        yield name
+    for const in code.co_consts:
+        if isinstance(const, six.string_types):
+            yield const
+        elif isinstance(const, CodeType):
+            for name in iter_symbols(const):
+                yield name
+
+
+def can_scan():
+    if not sys.platform.startswith('java') and sys.platform != 'cli':
+        # CPython, PyPy, etc.
+        return True
+    log.warn("Unable to analyze compiled code on this platform.")
+    log.warn("Please ask the author to include a 'zip_safe'"
+             " setting (either True or False) in the package's setup.py")
+
+
+# Attribute names of options for commands that might need to be convinced to
+# install to the egg build directory
+
+INSTALL_DIRECTORY_ATTRS = [
+    'install_lib', 'install_dir', 'install_data', 'install_base'
+]
+
+
+def make_zipfile(zip_filename, base_dir, verbose=0, dry_run=0, compress=True,
+                 mode='w'):
+    """Create a zip file from all the files under 'base_dir'.  The output
+    zip file will be named 'base_dir' + ".zip".  Uses either the "zipfile"
+    Python module (if available) or the InfoZIP "zip" utility (if installed
+    and found on the default search path).  If neither tool is available,
+    raises DistutilsExecError.  Returns the name of the output zip file.
+    """
+    import zipfile
+
+    mkpath(os.path.dirname(zip_filename), dry_run=dry_run)
+    log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
+
+    def visit(z, dirname, names):
+        for name in names:
+            path = os.path.normpath(os.path.join(dirname, name))
+            if os.path.isfile(path):
+                p = path[len(base_dir) + 1:]
+                if not dry_run:
+                    z.write(path, p)
+                log.debug("adding '%s'", p)
+
+    compression = zipfile.ZIP_DEFLATED if compress else zipfile.ZIP_STORED
+    if not dry_run:
+        z = zipfile.ZipFile(zip_filename, mode, compression=compression)
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(z, dirname, files)
+        z.close()
+    else:
+        for dirname, dirs, files in sorted_walk(base_dir):
+            visit(None, dirname, files)
+    return zip_filename
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py
new file mode 100644
index 0000000..7073092
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_rpm.py
@@ -0,0 +1,43 @@
+import distutils.command.bdist_rpm as orig
+
+
+class bdist_rpm(orig.bdist_rpm):
+    """
+    Override the default bdist_rpm behavior to do the following:
+
+    1. Run egg_info to ensure the name and version are properly calculated.
+    2. Always run 'install' using --single-version-externally-managed to
+       disable eggs in RPM distributions.
+    3. Replace dash with underscore in the version numbers for better RPM
+       compatibility.
+    """
+
+    def run(self):
+        # ensure distro name is up-to-date
+        self.run_command('egg_info')
+
+        orig.bdist_rpm.run(self)
+
+    def _make_spec_file(self):
+        version = self.distribution.get_version()
+        rpmversion = version.replace('-', '_')
+        spec = orig.bdist_rpm._make_spec_file(self)
+        line23 = '%define version ' + version
+        line24 = '%define version ' + rpmversion
+        spec = [
+            line.replace(
+                "Source0: %{name}-%{version}.tar",
+                "Source0: %{name}-%{unmangled_version}.tar"
+            ).replace(
+                "setup.py install ",
+                "setup.py install --single-version-externally-managed "
+            ).replace(
+                "%setup",
+                "%setup -n %{name}-%{unmangled_version}"
+            ).replace(line23, line24)
+            for line in spec
+        ]
+        insert_loc = spec.index(line24) + 1
+        unmangled_version = "%define unmangled_version " + version
+        spec.insert(insert_loc, unmangled_version)
+        return spec
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py
new file mode 100644
index 0000000..073de97
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/bdist_wininst.py
@@ -0,0 +1,21 @@
+import distutils.command.bdist_wininst as orig
+
+
+class bdist_wininst(orig.bdist_wininst):
+    def reinitialize_command(self, command, reinit_subcommands=0):
+        """
+        Supplement reinitialize_command to work around
+        http://bugs.python.org/issue20819
+        """
+        cmd = self.distribution.reinitialize_command(
+            command, reinit_subcommands)
+        if command in ('install', 'install_lib'):
+            cmd.install_lib = None
+        return cmd
+
+    def run(self):
+        self._is_running = True
+        try:
+            orig.bdist_wininst.run(self)
+        finally:
+            self._is_running = False
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/build_clib.py b/venv1/lib/python3.5/site-packages/setuptools/command/build_clib.py
new file mode 100644
index 0000000..09caff6
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/build_clib.py
@@ -0,0 +1,98 @@
+import distutils.command.build_clib as orig
+from distutils.errors import DistutilsSetupError
+from distutils import log
+from setuptools.dep_util import newer_pairwise_group
+
+
+class build_clib(orig.build_clib):
+    """
+    Override the default build_clib behaviour to do the following:
+
+    1. Implement a rudimentary timestamp-based dependency system
+       so 'compile()' doesn't run every time.
+    2. Add more keys to the 'build_info' dictionary:
+        * obj_deps - specify dependencies for each object compiled.
+                     this should be a dictionary mapping a key
+                     with the source filename to a list of
+                     dependencies. Use an empty string for global
+                     dependencies.
+        * cflags   - specify a list of additional flags to pass to
+                     the compiler.
+    """
+
+    def build_libraries(self, libraries):
+        for (lib_name, build_info) in libraries:
+            sources = build_info.get('sources')
+            if sources is None or not isinstance(sources, (list, tuple)):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'sources' must be present and must be "
+                       "a list of source filenames" % lib_name)
+            sources = list(sources)
+
+            log.info("building '%s' library", lib_name)
+
+            # Make sure everything is the correct type.
+            # obj_deps should be a dictionary of keys as sources
+            # and a list/tuple of files that are its dependencies.
+            obj_deps = build_info.get('obj_deps', dict())
+            if not isinstance(obj_deps, dict):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'obj_deps' must be a dictionary of "
+                       "type 'source: list'" % lib_name)
+            dependencies = []
+
+            # Get the global dependencies that are specified by the '' key.
+            # These will go into every source's dependency list.
+            global_deps = obj_deps.get('', list())
+            if not isinstance(global_deps, (list, tuple)):
+                raise DistutilsSetupError(
+                       "in 'libraries' option (library '%s'), "
+                       "'obj_deps' must be a dictionary of "
+                       "type 'source: list'" % lib_name)
+
+            # Build the list to be used by newer_pairwise_group
+            # each source will be auto-added to its dependencies.
+            for source in sources:
+                src_deps = [source]
+                src_deps.extend(global_deps)
+                extra_deps = obj_deps.get(source, list())
+                if not isinstance(extra_deps, (list, tuple)):
+                    raise DistutilsSetupError(
+                           "in 'libraries' option (library '%s'), "
+                           "'obj_deps' must be a dictionary of "
+                           "type 'source: list'" % lib_name)
+                src_deps.extend(extra_deps)
+                dependencies.append(src_deps)
+
+            expected_objects = self.compiler.object_filenames(
+                    sources,
+                    output_dir=self.build_temp
+                    )
+
+            if newer_pairwise_group(dependencies, expected_objects) != ([], []):
+                # First, compile the source code to object files in the library
+                # directory.  (This should probably change to putting object
+                # files in a temporary build directory.)
+                macros = build_info.get('macros')
+                include_dirs = build_info.get('include_dirs')
+                cflags = build_info.get('cflags')
+                objects = self.compiler.compile(
+                        sources,
+                        output_dir=self.build_temp,
+                        macros=macros,
+                        include_dirs=include_dirs,
+                        extra_postargs=cflags,
+                        debug=self.debug
+                        )
+
+            # Now "link" the object files together into a static library.
+            # (On Unix at least, this isn't really linking -- it just
+            # builds an archive.  Whatever.)
+            self.compiler.create_static_lib(
+                    expected_objects,
+                    lib_name,
+                    output_dir=self.build_clib,
+                    debug=self.debug
+                    )
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/build_ext.py b/venv1/lib/python3.5/site-packages/setuptools/command/build_ext.py
new file mode 100644
index 0000000..36f53f0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/build_ext.py
@@ -0,0 +1,328 @@
+import os
+import sys
+import itertools
+import imp
+from distutils.command.build_ext import build_ext as _du_build_ext
+from distutils.file_util import copy_file
+from distutils.ccompiler import new_compiler
+from distutils.sysconfig import customize_compiler, get_config_var
+from distutils.errors import DistutilsError
+from distutils import log
+
+from setuptools.extension import Library
+from setuptools.extern import six
+
+try:
+    # Attempt to use Cython for building extensions, if available
+    from Cython.Distutils.build_ext import build_ext as _build_ext
+except ImportError:
+    _build_ext = _du_build_ext
+
+# make sure _config_vars is initialized
+get_config_var("LDSHARED")
+from distutils.sysconfig import _config_vars as _CONFIG_VARS
+
+
+def _customize_compiler_for_shlib(compiler):
+    if sys.platform == "darwin":
+        # building .dylib requires additional compiler flags on OSX; here we
+        # temporarily substitute the pyconfig.h variables so that distutils'
+        # 'customize_compiler' uses them before we build the shared libraries.
+        tmp = _CONFIG_VARS.copy()
+        try:
+            # XXX Help!  I don't have any idea whether these are right...
+            _CONFIG_VARS['LDSHARED'] = (
+                "gcc -Wl,-x -dynamiclib -undefined dynamic_lookup")
+            _CONFIG_VARS['CCSHARED'] = " -dynamiclib"
+            _CONFIG_VARS['SO'] = ".dylib"
+            customize_compiler(compiler)
+        finally:
+            _CONFIG_VARS.clear()
+            _CONFIG_VARS.update(tmp)
+    else:
+        customize_compiler(compiler)
+
+
+have_rtld = False
+use_stubs = False
+libtype = 'shared'
+
+if sys.platform == "darwin":
+    use_stubs = True
+elif os.name != 'nt':
+    try:
+        import dl
+        use_stubs = have_rtld = hasattr(dl, 'RTLD_NOW')
+    except ImportError:
+        pass
+
+if_dl = lambda s: s if have_rtld else ''
+
+
+def get_abi3_suffix():
+    """Return the file extension for an abi3-compliant Extension()"""
+    for suffix, _, _ in (s for s in imp.get_suffixes() if s[2] == imp.C_EXTENSION):
+        if '.abi3' in suffix:  # Unix
+            return suffix
+        elif suffix == '.pyd':  # Windows
+            return suffix
+
+
+class build_ext(_build_ext):
+    def run(self):
+        """Build extensions in build directory, then copy if --inplace"""
+        old_inplace, self.inplace = self.inplace, 0
+        _build_ext.run(self)
+        self.inplace = old_inplace
+        if old_inplace:
+            self.copy_extensions_to_source()
+
+    def copy_extensions_to_source(self):
+        build_py = self.get_finalized_command('build_py')
+        for ext in self.extensions:
+            fullname = self.get_ext_fullname(ext.name)
+            filename = self.get_ext_filename(fullname)
+            modpath = fullname.split('.')
+            package = '.'.join(modpath[:-1])
+            package_dir = build_py.get_package_dir(package)
+            dest_filename = os.path.join(package_dir,
+                                         os.path.basename(filename))
+            src_filename = os.path.join(self.build_lib, filename)
+
+            # Always copy, even if source is older than destination, to ensure
+            # that the right extensions for the current Python/platform are
+            # used.
+            copy_file(
+                src_filename, dest_filename, verbose=self.verbose,
+                dry_run=self.dry_run
+            )
+            if ext._needs_stub:
+                self.write_stub(package_dir or os.curdir, ext, True)
+
+    def get_ext_filename(self, fullname):
+        filename = _build_ext.get_ext_filename(self, fullname)
+        if fullname in self.ext_map:
+            ext = self.ext_map[fullname]
+            use_abi3 = (
+                six.PY3
+                and getattr(ext, 'py_limited_api')
+                and get_abi3_suffix()
+            )
+            if use_abi3:
+                so_ext = _get_config_var_837('EXT_SUFFIX')
+                filename = filename[:-len(so_ext)]
+                filename = filename + get_abi3_suffix()
+            if isinstance(ext, Library):
+                fn, ext = os.path.splitext(filename)
+                return self.shlib_compiler.library_filename(fn, libtype)
+            elif use_stubs and ext._links_to_dynamic:
+                d, fn = os.path.split(filename)
+                return os.path.join(d, 'dl-' + fn)
+        return filename
+
+    def initialize_options(self):
+        _build_ext.initialize_options(self)
+        self.shlib_compiler = None
+        self.shlibs = []
+        self.ext_map = {}
+
+    def finalize_options(self):
+        _build_ext.finalize_options(self)
+        self.extensions = self.extensions or []
+        self.check_extensions_list(self.extensions)
+        self.shlibs = [ext for ext in self.extensions
+                       if isinstance(ext, Library)]
+        if self.shlibs:
+            self.setup_shlib_compiler()
+        for ext in self.extensions:
+            ext._full_name = self.get_ext_fullname(ext.name)
+        for ext in self.extensions:
+            fullname = ext._full_name
+            self.ext_map[fullname] = ext
+
+            # distutils 3.1 will also ask for module names
+            # XXX what to do with conflicts?
+            self.ext_map[fullname.split('.')[-1]] = ext
+
+            ltd = self.shlibs and self.links_to_dynamic(ext) or False
+            ns = ltd and use_stubs and not isinstance(ext, Library)
+            ext._links_to_dynamic = ltd
+            ext._needs_stub = ns
+            filename = ext._file_name = self.get_ext_filename(fullname)
+            libdir = os.path.dirname(os.path.join(self.build_lib, filename))
+            if ltd and libdir not in ext.library_dirs:
+                ext.library_dirs.append(libdir)
+            if ltd and use_stubs and os.curdir not in ext.runtime_library_dirs:
+                ext.runtime_library_dirs.append(os.curdir)
+
+    def setup_shlib_compiler(self):
+        compiler = self.shlib_compiler = new_compiler(
+            compiler=self.compiler, dry_run=self.dry_run, force=self.force
+        )
+        _customize_compiler_for_shlib(compiler)
+
+        if self.include_dirs is not None:
+            compiler.set_include_dirs(self.include_dirs)
+        if self.define is not None:
+            # 'define' option is a list of (name,value) tuples
+            for (name, value) in self.define:
+                compiler.define_macro(name, value)
+        if self.undef is not None:
+            for macro in self.undef:
+                compiler.undefine_macro(macro)
+        if self.libraries is not None:
+            compiler.set_libraries(self.libraries)
+        if self.library_dirs is not None:
+            compiler.set_library_dirs(self.library_dirs)
+        if self.rpath is not None:
+            compiler.set_runtime_library_dirs(self.rpath)
+        if self.link_objects is not None:
+            compiler.set_link_objects(self.link_objects)
+
+        # hack so distutils' build_extension() builds a library instead
+        compiler.link_shared_object = link_shared_object.__get__(compiler)
+
+    def get_export_symbols(self, ext):
+        if isinstance(ext, Library):
+            return ext.export_symbols
+        return _build_ext.get_export_symbols(self, ext)
+
+    def build_extension(self, ext):
+        ext._convert_pyx_sources_to_lang()
+        _compiler = self.compiler
+        try:
+            if isinstance(ext, Library):
+                self.compiler = self.shlib_compiler
+            _build_ext.build_extension(self, ext)
+            if ext._needs_stub:
+                cmd = self.get_finalized_command('build_py').build_lib
+                self.write_stub(cmd, ext)
+        finally:
+            self.compiler = _compiler
+
+    def links_to_dynamic(self, ext):
+        """Return true if 'ext' links to a dynamic lib in the same package"""
+        # XXX this should check to ensure the lib is actually being built
+        # XXX as dynamic, and not just using a locally-found version or a
+        # XXX static-compiled version
+        libnames = dict.fromkeys([lib._full_name for lib in self.shlibs])
+        pkg = '.'.join(ext._full_name.split('.')[:-1] + [''])
+        return any(pkg + libname in libnames for libname in ext.libraries)
+
+    def get_outputs(self):
+        return _build_ext.get_outputs(self) + self.__get_stubs_outputs()
+
+    def __get_stubs_outputs(self):
+        # assemble the base name for each extension that needs a stub
+        ns_ext_bases = (
+            os.path.join(self.build_lib, *ext._full_name.split('.'))
+            for ext in self.extensions
+            if ext._needs_stub
+        )
+        # pair each base with the extension
+        pairs = itertools.product(ns_ext_bases, self.__get_output_extensions())
+        return list(base + fnext for base, fnext in pairs)
+
+    def __get_output_extensions(self):
+        yield '.py'
+        yield '.pyc'
+        if self.get_finalized_command('build_py').optimize:
+            yield '.pyo'
+
+    def write_stub(self, output_dir, ext, compile=False):
+        log.info("writing stub loader for %s to %s", ext._full_name,
+                 output_dir)
+        stub_file = (os.path.join(output_dir, *ext._full_name.split('.')) +
+                     '.py')
+        if compile and os.path.exists(stub_file):
+            raise DistutilsError(stub_file + " already exists! Please delete.")
+        if not self.dry_run:
+            f = open(stub_file, 'w')
+            f.write(
+                '\n'.join([
+                    "def __bootstrap__():",
+                    "   global __bootstrap__, __file__, __loader__",
+                    "   import sys, os, pkg_resources, imp" + if_dl(", dl"),
+                    "   __file__ = pkg_resources.resource_filename"
+                    "(__name__,%r)"
+                    % os.path.basename(ext._file_name),
+                    "   del __bootstrap__",
+                    "   if '__loader__' in globals():",
+                    "       del __loader__",
+                    if_dl("   old_flags = sys.getdlopenflags()"),
+                    "   old_dir = os.getcwd()",
+                    "   try:",
+                    "     os.chdir(os.path.dirname(__file__))",
+                    if_dl("     sys.setdlopenflags(dl.RTLD_NOW)"),
+                    "     imp.load_dynamic(__name__,__file__)",
+                    "   finally:",
+                    if_dl("     sys.setdlopenflags(old_flags)"),
+                    "     os.chdir(old_dir)",
+                    "__bootstrap__()",
+                    ""  # terminal \n
+                ])
+            )
+            f.close()
+        if compile:
+            from distutils.util import byte_compile
+
+            byte_compile([stub_file], optimize=0,
+                         force=True, dry_run=self.dry_run)
+            optimize = self.get_finalized_command('install_lib').optimize
+            if optimize > 0:
+                byte_compile([stub_file], optimize=optimize,
+                             force=True, dry_run=self.dry_run)
+            if os.path.exists(stub_file) and not self.dry_run:
+                os.unlink(stub_file)
+
+
+if use_stubs or os.name == 'nt':
+    # Build shared libraries
+    #
+    def link_shared_object(
+            self, objects, output_libname, output_dir=None, libraries=None,
+            library_dirs=None, runtime_library_dirs=None, export_symbols=None,
+            debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
+            target_lang=None):
+        self.link(
+            self.SHARED_LIBRARY, objects, output_libname,
+            output_dir, libraries, library_dirs, runtime_library_dirs,
+            export_symbols, debug, extra_preargs, extra_postargs,
+            build_temp, target_lang
+        )
+else:
+    # Build static libraries everywhere else
+    libtype = 'static'
+
+    def link_shared_object(
+            self, objects, output_libname, output_dir=None, libraries=None,
+            library_dirs=None, runtime_library_dirs=None, export_symbols=None,
+            debug=0, extra_preargs=None, extra_postargs=None, build_temp=None,
+            target_lang=None):
+        # XXX we need to either disallow these attrs on Library instances,
+        # or warn/abort here if set, or something...
+        # libraries=None, library_dirs=None, runtime_library_dirs=None,
+        # export_symbols=None, extra_preargs=None, extra_postargs=None,
+        # build_temp=None
+
+        assert output_dir is None  # distutils build_ext doesn't pass this
+        output_dir, filename = os.path.split(output_libname)
+        basename, ext = os.path.splitext(filename)
+        if self.library_filename("x").startswith('lib'):
+            # strip 'lib' prefix; this is kludgy if some platform uses
+            # a different prefix
+            basename = basename[3:]
+
+        self.create_static_lib(
+            objects, basename, output_dir, debug, target_lang
+        )
+
+
+def _get_config_var_837(name):
+    """
+    In https://github.com/pypa/setuptools/pull/837, we discovered
+    Python 3.3.0 exposes the extension suffix under the name 'SO'.
+    """
+    if sys.version_info < (3, 3, 1):
+        name = 'SO'
+    return get_config_var(name)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/build_py.py b/venv1/lib/python3.5/site-packages/setuptools/command/build_py.py
new file mode 100644
index 0000000..b0314fd
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/build_py.py
@@ -0,0 +1,270 @@
+from glob import glob
+from distutils.util import convert_path
+import distutils.command.build_py as orig
+import os
+import fnmatch
+import textwrap
+import io
+import distutils.errors
+import itertools
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter, filterfalse
+
+try:
+    from setuptools.lib2to3_ex import Mixin2to3
+except ImportError:
+
+    class Mixin2to3:
+        def run_2to3(self, files, doctests=True):
+            "do nothing"
+
+
+class build_py(orig.build_py, Mixin2to3):
+    """Enhanced 'build_py' command that includes data files with packages
+
+    The data files are specified via a 'package_data' argument to 'setup()'.
+    See 'setuptools.dist.Distribution' for more details.
+
+    Also, this version of the 'build_py' command allows you to specify both
+    'py_modules' and 'packages' in the same setup operation.
+    """
+
+    def finalize_options(self):
+        orig.build_py.finalize_options(self)
+        self.package_data = self.distribution.package_data
+        self.exclude_package_data = (self.distribution.exclude_package_data or
+                                     {})
+        if 'data_files' in self.__dict__:
+            del self.__dict__['data_files']
+        self.__updated_files = []
+        self.__doctests_2to3 = []
+
+    def run(self):
+        """Build modules, packages, and copy data files to build directory"""
+        if not self.py_modules and not self.packages:
+            return
+
+        if self.py_modules:
+            self.build_modules()
+
+        if self.packages:
+            self.build_packages()
+            self.build_package_data()
+
+        self.run_2to3(self.__updated_files, False)
+        self.run_2to3(self.__updated_files, True)
+        self.run_2to3(self.__doctests_2to3, True)
+
+        # Only compile actual .py files, using our base class' idea of what our
+        # output files are.
+        self.byte_compile(orig.build_py.get_outputs(self, include_bytecode=0))
+
+    def __getattr__(self, attr):
+        "lazily compute data files"
+        if attr == 'data_files':
+            self.data_files = self._get_data_files()
+            return self.data_files
+        return orig.build_py.__getattr__(self, attr)
+
+    def build_module(self, module, module_file, package):
+        if six.PY2 and isinstance(package, six.string_types):
+            # avoid errors on Python 2 when unicode is passed (#190)
+            package = package.split('.')
+        outfile, copied = orig.build_py.build_module(self, module, module_file,
+                                                     package)
+        if copied:
+            self.__updated_files.append(outfile)
+        return outfile, copied
+
+    def _get_data_files(self):
+        """Generate list of '(package,src_dir,build_dir,filenames)' tuples"""
+        self.analyze_manifest()
+        return list(map(self._get_pkg_data_files, self.packages or ()))
+
+    def _get_pkg_data_files(self, package):
+        # Locate package source directory
+        src_dir = self.get_package_dir(package)
+
+        # Compute package build directory
+        build_dir = os.path.join(*([self.build_lib] + package.split('.')))
+
+        # Strip directory from globbed filenames
+        filenames = [
+            os.path.relpath(file, src_dir)
+            for file in self.find_data_files(package, src_dir)
+        ]
+        return package, src_dir, build_dir, filenames
+
+    def find_data_files(self, package, src_dir):
+        """Return filenames for package's data files in 'src_dir'"""
+        patterns = self._get_platform_patterns(
+            self.package_data,
+            package,
+            src_dir,
+        )
+        globs_expanded = map(glob, patterns)
+        # flatten the expanded globs into an iterable of matches
+        globs_matches = itertools.chain.from_iterable(globs_expanded)
+        glob_files = filter(os.path.isfile, globs_matches)
+        files = itertools.chain(
+            self.manifest_files.get(package, []),
+            glob_files,
+        )
+        return self.exclude_data_files(package, src_dir, files)
+
+    def build_package_data(self):
+        """Copy data files into build directory"""
+        for package, src_dir, build_dir, filenames in self.data_files:
+            for filename in filenames:
+                target = os.path.join(build_dir, filename)
+                self.mkpath(os.path.dirname(target))
+                srcfile = os.path.join(src_dir, filename)
+                outf, copied = self.copy_file(srcfile, target)
+                srcfile = os.path.abspath(srcfile)
+                if (copied and
+                        srcfile in self.distribution.convert_2to3_doctests):
+                    self.__doctests_2to3.append(outf)
+
+    def analyze_manifest(self):
+        self.manifest_files = mf = {}
+        if not self.distribution.include_package_data:
+            return
+        src_dirs = {}
+        for package in self.packages or ():
+            # Locate package source directory
+            src_dirs[assert_relative(self.get_package_dir(package))] = package
+
+        self.run_command('egg_info')
+        ei_cmd = self.get_finalized_command('egg_info')
+        for path in ei_cmd.filelist.files:
+            d, f = os.path.split(assert_relative(path))
+            prev = None
+            oldf = f
+            while d and d != prev and d not in src_dirs:
+                prev = d
+                d, df = os.path.split(d)
+                f = os.path.join(df, f)
+            if d in src_dirs:
+                if path.endswith('.py') and f == oldf:
+                    continue  # it's a module, not data
+                mf.setdefault(src_dirs[d], []).append(path)
+
+    def get_data_files(self):
+        pass  # Lazily compute data files in _get_data_files() function.
+
+    def check_package(self, package, package_dir):
+        """Check namespace packages' __init__ for declare_namespace"""
+        try:
+            return self.packages_checked[package]
+        except KeyError:
+            pass
+
+        init_py = orig.build_py.check_package(self, package, package_dir)
+        self.packages_checked[package] = init_py
+
+        if not init_py or not self.distribution.namespace_packages:
+            return init_py
+
+        for pkg in self.distribution.namespace_packages:
+            if pkg == package or pkg.startswith(package + '.'):
+                break
+        else:
+            return init_py
+
+        with io.open(init_py, 'rb') as f:
+            contents = f.read()
+        if b'declare_namespace' not in contents:
+            raise distutils.errors.DistutilsError(
+                "Namespace package problem: %s is a namespace package, but "
+                "its\n__init__.py does not call declare_namespace()! Please "
+                'fix it.\n(See the setuptools manual under '
+                '"Namespace Packages" for details.)\n"' % (package,)
+            )
+        return init_py
+
+    def initialize_options(self):
+        self.packages_checked = {}
+        orig.build_py.initialize_options(self)
+
+    def get_package_dir(self, package):
+        res = orig.build_py.get_package_dir(self, package)
+        if self.distribution.src_root is not None:
+            return os.path.join(self.distribution.src_root, res)
+        return res
+
+    def exclude_data_files(self, package, src_dir, files):
+        """Filter filenames for package's data files in 'src_dir'"""
+        files = list(files)
+        patterns = self._get_platform_patterns(
+            self.exclude_package_data,
+            package,
+            src_dir,
+        )
+        match_groups = (
+            fnmatch.filter(files, pattern)
+            for pattern in patterns
+        )
+        # flatten the groups of matches into an iterable of matches
+        matches = itertools.chain.from_iterable(match_groups)
+        bad = set(matches)
+        keepers = (
+            fn
+            for fn in files
+            if fn not in bad
+        )
+        # ditch dupes
+        return list(_unique_everseen(keepers))
+
+    @staticmethod
+    def _get_platform_patterns(spec, package, src_dir):
+        """
+        yield platform-specific path patterns (suitable for glob
+        or fn_match) from a glob-based spec (such as
+        self.package_data or self.exclude_package_data)
+        matching package in src_dir.
+        """
+        raw_patterns = itertools.chain(
+            spec.get('', []),
+            spec.get(package, []),
+        )
+        return (
+            # Each pattern has to be converted to a platform-specific path
+            os.path.join(src_dir, convert_path(pattern))
+            for pattern in raw_patterns
+        )
+
+
+# from Python docs
+def _unique_everseen(iterable, key=None):
+    "List unique elements, preserving order. Remember all elements ever seen."
+    # unique_everseen('AAAABBBCCDAABBB') --> A B C D
+    # unique_everseen('ABBCcAD', str.lower) --> A B C D
+    seen = set()
+    seen_add = seen.add
+    if key is None:
+        for element in filterfalse(seen.__contains__, iterable):
+            seen_add(element)
+            yield element
+    else:
+        for element in iterable:
+            k = key(element)
+            if k not in seen:
+                seen_add(k)
+                yield element
+
+
+def assert_relative(path):
+    if not os.path.isabs(path):
+        return path
+    from distutils.errors import DistutilsSetupError
+
+    msg = textwrap.dedent("""
+        Error: setup script specifies an absolute path:
+
+            %s
+
+        setup() arguments must *always* be /-separated paths relative to the
+        setup.py directory, *never* absolute paths.
+        """).lstrip() % path
+    raise DistutilsSetupError(msg)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/develop.py b/venv1/lib/python3.5/site-packages/setuptools/command/develop.py
new file mode 100644
index 0000000..959c932
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/develop.py
@@ -0,0 +1,216 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsError, DistutilsOptionError
+import os
+import glob
+import io
+
+from setuptools.extern import six
+
+from pkg_resources import Distribution, PathMetadata, normalize_path
+from setuptools.command.easy_install import easy_install
+from setuptools import namespaces
+import setuptools
+
+
+class develop(namespaces.DevelopInstaller, easy_install):
+    """Set up package for development"""
+
+    description = "install package in 'development mode'"
+
+    user_options = easy_install.user_options + [
+        ("uninstall", "u", "Uninstall this source package"),
+        ("egg-path=", None, "Set the path to be used in the .egg-link file"),
+    ]
+
+    boolean_options = easy_install.boolean_options + ['uninstall']
+
+    command_consumes_arguments = False  # override base
+
+    def run(self):
+        if self.uninstall:
+            self.multi_version = True
+            self.uninstall_link()
+            self.uninstall_namespaces()
+        else:
+            self.install_for_development()
+        self.warn_deprecated_options()
+
+    def initialize_options(self):
+        self.uninstall = None
+        self.egg_path = None
+        easy_install.initialize_options(self)
+        self.setup_path = None
+        self.always_copy_from = '.'  # always copy eggs installed in curdir
+
+    def finalize_options(self):
+        ei = self.get_finalized_command("egg_info")
+        if ei.broken_egg_info:
+            template = "Please rename %r to %r before using 'develop'"
+            args = ei.egg_info, ei.broken_egg_info
+            raise DistutilsError(template % args)
+        self.args = [ei.egg_name]
+
+        easy_install.finalize_options(self)
+        self.expand_basedirs()
+        self.expand_dirs()
+        # pick up setup-dir .egg files only: no .egg-info
+        self.package_index.scan(glob.glob('*.egg'))
+
+        egg_link_fn = ei.egg_name + '.egg-link'
+        self.egg_link = os.path.join(self.install_dir, egg_link_fn)
+        self.egg_base = ei.egg_base
+        if self.egg_path is None:
+            self.egg_path = os.path.abspath(ei.egg_base)
+
+        target = normalize_path(self.egg_base)
+        egg_path = normalize_path(os.path.join(self.install_dir,
+                                               self.egg_path))
+        if egg_path != target:
+            raise DistutilsOptionError(
+                "--egg-path must be a relative path from the install"
+                " directory to " + target
+            )
+
+        # Make a distribution for the package's source
+        self.dist = Distribution(
+            target,
+            PathMetadata(target, os.path.abspath(ei.egg_info)),
+            project_name=ei.egg_name
+        )
+
+        self.setup_path = self._resolve_setup_path(
+            self.egg_base,
+            self.install_dir,
+            self.egg_path,
+        )
+
+    @staticmethod
+    def _resolve_setup_path(egg_base, install_dir, egg_path):
+        """
+        Generate a path from egg_base back to '.' where the
+        setup script resides and ensure that path points to the
+        setup path from $install_dir/$egg_path.
+        """
+        path_to_setup = egg_base.replace(os.sep, '/').rstrip('/')
+        if path_to_setup != os.curdir:
+            path_to_setup = '../' * (path_to_setup.count('/') + 1)
+        resolved = normalize_path(
+            os.path.join(install_dir, egg_path, path_to_setup)
+        )
+        if resolved != normalize_path(os.curdir):
+            raise DistutilsOptionError(
+                "Can't get a consistent path to setup script from"
+                " installation directory", resolved, normalize_path(os.curdir))
+        return path_to_setup
+
+    def install_for_development(self):
+        if six.PY3 and getattr(self.distribution, 'use_2to3', False):
+            # If we run 2to3 we can not do this inplace:
+
+            # Ensure metadata is up-to-date
+            self.reinitialize_command('build_py', inplace=0)
+            self.run_command('build_py')
+            bpy_cmd = self.get_finalized_command("build_py")
+            build_path = normalize_path(bpy_cmd.build_lib)
+
+            # Build extensions
+            self.reinitialize_command('egg_info', egg_base=build_path)
+            self.run_command('egg_info')
+
+            self.reinitialize_command('build_ext', inplace=0)
+            self.run_command('build_ext')
+
+            # Fixup egg-link and easy-install.pth
+            ei_cmd = self.get_finalized_command("egg_info")
+            self.egg_path = build_path
+            self.dist.location = build_path
+            # XXX
+            self.dist._provider = PathMetadata(build_path, ei_cmd.egg_info)
+        else:
+            # Without 2to3 inplace works fine:
+            self.run_command('egg_info')
+
+            # Build extensions in-place
+            self.reinitialize_command('build_ext', inplace=1)
+            self.run_command('build_ext')
+
+        self.install_site_py()  # ensure that target dir is site-safe
+        if setuptools.bootstrap_install_from:
+            self.easy_install(setuptools.bootstrap_install_from)
+            setuptools.bootstrap_install_from = None
+
+        self.install_namespaces()
+
+        # create an .egg-link in the installation dir, pointing to our egg
+        log.info("Creating %s (link to %s)", self.egg_link, self.egg_base)
+        if not self.dry_run:
+            with open(self.egg_link, "w") as f:
+                f.write(self.egg_path + "\n" + self.setup_path)
+        # postprocess the installed distro, fixing up .pth, installing scripts,
+        # and handling requirements
+        self.process_distribution(None, self.dist, not self.no_deps)
+
+    def uninstall_link(self):
+        if os.path.exists(self.egg_link):
+            log.info("Removing %s (link to %s)", self.egg_link, self.egg_base)
+            egg_link_file = open(self.egg_link)
+            contents = [line.rstrip() for line in egg_link_file]
+            egg_link_file.close()
+            if contents not in ([self.egg_path],
+                                [self.egg_path, self.setup_path]):
+                log.warn("Link points to %s: uninstall aborted", contents)
+                return
+            if not self.dry_run:
+                os.unlink(self.egg_link)
+        if not self.dry_run:
+            self.update_pth(self.dist)  # remove any .pth link to us
+        if self.distribution.scripts:
+            # XXX should also check for entry point scripts!
+            log.warn("Note: you must uninstall or replace scripts manually!")
+
+    def install_egg_scripts(self, dist):
+        if dist is not self.dist:
+            # Installing a dependency, so fall back to normal behavior
+            return easy_install.install_egg_scripts(self, dist)
+
+        # create wrapper scripts in the script dir, pointing to dist.scripts
+
+        # new-style...
+        self.install_wrapper_scripts(dist)
+
+        # ...and old-style
+        for script_name in self.distribution.scripts or []:
+            script_path = os.path.abspath(convert_path(script_name))
+            script_name = os.path.basename(script_path)
+            with io.open(script_path) as strm:
+                script_text = strm.read()
+            self.install_script(dist, script_name, script_text, script_path)
+
+    def install_wrapper_scripts(self, dist):
+        dist = VersionlessRequirement(dist)
+        return easy_install.install_wrapper_scripts(self, dist)
+
+
+class VersionlessRequirement(object):
+    """
+    Adapt a pkg_resources.Distribution to simply return the project
+    name as the 'requirement' so that scripts will work across
+    multiple versions.
+
+    >>> dist = Distribution(project_name='foo', version='1.0')
+    >>> str(dist.as_requirement())
+    'foo==1.0'
+    >>> adapted_dist = VersionlessRequirement(dist)
+    >>> str(adapted_dist.as_requirement())
+    'foo'
+    """
+
+    def __init__(self, dist):
+        self.__dist = dist
+
+    def __getattr__(self, name):
+        return getattr(self.__dist, name)
+
+    def as_requirement(self):
+        return self.project_name
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/dist_info.py b/venv1/lib/python3.5/site-packages/setuptools/command/dist_info.py
new file mode 100644
index 0000000..c45258f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/dist_info.py
@@ -0,0 +1,36 @@
+"""
+Create a dist_info directory
+As defined in the wheel specification
+"""
+
+import os
+
+from distutils.core import Command
+from distutils import log
+
+
+class dist_info(Command):
+
+    description = 'create a .dist-info directory'
+
+    user_options = [
+        ('egg-base=', 'e', "directory containing .egg-info directories"
+                           " (default: top of the source tree)"),
+    ]
+
+    def initialize_options(self):
+        self.egg_base = None
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        egg_info = self.get_finalized_command('egg_info')
+        egg_info.egg_base = self.egg_base
+        egg_info.finalize_options()
+        egg_info.run()
+        dist_info_dir = egg_info.egg_info[:-len('.egg-info')] + '.dist-info'
+        log.info("creating '{}'".format(os.path.abspath(dist_info_dir)))
+
+        bdist_wheel = self.get_finalized_command('bdist_wheel')
+        bdist_wheel.egg2dist(egg_info.egg_info, dist_info_dir)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/easy_install.py b/venv1/lib/python3.5/site-packages/setuptools/command/easy_install.py
new file mode 100644
index 0000000..12e2231
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/easy_install.py
@@ -0,0 +1,2333 @@
+#!/usr/bin/env python
+"""
+Easy Install
+------------
+
+A tool for doing automatic download/extract/build of distutils-based Python
+packages.  For detailed documentation, see the accompanying EasyInstall.txt
+file, or visit the `EasyInstall home page`__.
+
+__ https://setuptools.readthedocs.io/en/latest/easy_install.html
+
+"""
+
+from glob import glob
+from distutils.util import get_platform
+from distutils.util import convert_path, subst_vars
+from distutils.errors import (
+    DistutilsArgError, DistutilsOptionError,
+    DistutilsError, DistutilsPlatformError,
+)
+from distutils.command.install import INSTALL_SCHEMES, SCHEME_KEYS
+from distutils import log, dir_util
+from distutils.command.build_scripts import first_line_re
+from distutils.spawn import find_executable
+import sys
+import os
+import zipimport
+import shutil
+import tempfile
+import zipfile
+import re
+import stat
+import random
+import textwrap
+import warnings
+import site
+import struct
+import contextlib
+import subprocess
+import shlex
+import io
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import configparser, map
+
+from setuptools import Command
+from setuptools.sandbox import run_setup
+from setuptools.py31compat import get_path, get_config_vars
+from setuptools.py27compat import rmtree_safe
+from setuptools.command import setopt
+from setuptools.archive_util import unpack_archive
+from setuptools.package_index import (
+    PackageIndex, parse_requirement_arg, URL_SCHEME,
+)
+from setuptools.command import bdist_egg, egg_info
+from setuptools.wheel import Wheel
+from pkg_resources import (
+    yield_lines, normalize_path, resource_string, ensure_directory,
+    get_distribution, find_distributions, Environment, Requirement,
+    Distribution, PathMetadata, EggMetadata, WorkingSet, DistributionNotFound,
+    VersionConflict, DEVELOP_DIST,
+)
+import pkg_resources.py31compat
+
+# Turn on PEP440Warnings
+warnings.filterwarnings("default", category=pkg_resources.PEP440Warning)
+
+__all__ = [
+    'samefile', 'easy_install', 'PthDistributions', 'extract_wininst_cfg',
+    'main', 'get_exe_prefixes',
+]
+
+
+def is_64bit():
+    return struct.calcsize("P") == 8
+
+
+def samefile(p1, p2):
+    """
+    Determine if two paths reference the same file.
+
+    Augments os.path.samefile to work on Windows and
+    suppresses errors if the path doesn't exist.
+    """
+    both_exist = os.path.exists(p1) and os.path.exists(p2)
+    use_samefile = hasattr(os.path, 'samefile') and both_exist
+    if use_samefile:
+        return os.path.samefile(p1, p2)
+    norm_p1 = os.path.normpath(os.path.normcase(p1))
+    norm_p2 = os.path.normpath(os.path.normcase(p2))
+    return norm_p1 == norm_p2
+
+
+if six.PY2:
+
+    def _to_ascii(s):
+        return s
+
+    def isascii(s):
+        try:
+            six.text_type(s, 'ascii')
+            return True
+        except UnicodeError:
+            return False
+else:
+
+    def _to_ascii(s):
+        return s.encode('ascii')
+
+    def isascii(s):
+        try:
+            s.encode('ascii')
+            return True
+        except UnicodeError:
+            return False
+
+
+_one_liner = lambda text: textwrap.dedent(text).strip().replace('\n', '; ')
+
+
+class easy_install(Command):
+    """Manage a download/build/install process"""
+    description = "Find/get/install Python packages"
+    command_consumes_arguments = True
+
+    user_options = [
+        ('prefix=', None, "installation prefix"),
+        ("zip-ok", "z", "install package as a zipfile"),
+        ("multi-version", "m", "make apps have to require() a version"),
+        ("upgrade", "U", "force upgrade (searches PyPI for latest versions)"),
+        ("install-dir=", "d", "install package to DIR"),
+        ("script-dir=", "s", "install scripts to DIR"),
+        ("exclude-scripts", "x", "Don't install scripts"),
+        ("always-copy", "a", "Copy all needed packages to install dir"),
+        ("index-url=", "i", "base URL of Python Package Index"),
+        ("find-links=", "f", "additional URL(s) to search for packages"),
+        ("build-directory=", "b",
+         "download/extract/build in DIR; keep the results"),
+        ('optimize=', 'O',
+         "also compile with optimization: -O1 for \"python -O\", "
+         "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
+        ('record=', None,
+         "filename in which to record list of installed files"),
+        ('always-unzip', 'Z', "don't install as a zipfile, no matter what"),
+        ('site-dirs=', 'S', "list of directories where .pth files work"),
+        ('editable', 'e', "Install specified packages in editable form"),
+        ('no-deps', 'N', "don't install dependencies"),
+        ('allow-hosts=', 'H', "pattern(s) that hostnames must match"),
+        ('local-snapshots-ok', 'l',
+         "allow building eggs from local checkouts"),
+        ('version', None, "print version information and exit"),
+        ('no-find-links', None,
+         "Don't load find-links defined in packages being installed")
+    ]
+    boolean_options = [
+        'zip-ok', 'multi-version', 'exclude-scripts', 'upgrade', 'always-copy',
+        'editable',
+        'no-deps', 'local-snapshots-ok', 'version'
+    ]
+
+    if site.ENABLE_USER_SITE:
+        help_msg = "install in user site-package '%s'" % site.USER_SITE
+        user_options.append(('user', None, help_msg))
+        boolean_options.append('user')
+
+    negative_opt = {'always-unzip': 'zip-ok'}
+    create_index = PackageIndex
+
+    def initialize_options(self):
+        # the --user option seems to be an opt-in one,
+        # so the default should be False.
+        self.user = 0
+        self.zip_ok = self.local_snapshots_ok = None
+        self.install_dir = self.script_dir = self.exclude_scripts = None
+        self.index_url = None
+        self.find_links = None
+        self.build_directory = None
+        self.args = None
+        self.optimize = self.record = None
+        self.upgrade = self.always_copy = self.multi_version = None
+        self.editable = self.no_deps = self.allow_hosts = None
+        self.root = self.prefix = self.no_report = None
+        self.version = None
+        self.install_purelib = None  # for pure module distributions
+        self.install_platlib = None  # non-pure (dists w/ extensions)
+        self.install_headers = None  # for C/C++ headers
+        self.install_lib = None  # set to either purelib or platlib
+        self.install_scripts = None
+        self.install_data = None
+        self.install_base = None
+        self.install_platbase = None
+        if site.ENABLE_USER_SITE:
+            self.install_userbase = site.USER_BASE
+            self.install_usersite = site.USER_SITE
+        else:
+            self.install_userbase = None
+            self.install_usersite = None
+        self.no_find_links = None
+
+        # Options not specifiable via command line
+        self.package_index = None
+        self.pth_file = self.always_copy_from = None
+        self.site_dirs = None
+        self.installed_projects = {}
+        self.sitepy_installed = False
+        # Always read easy_install options, even if we are subclassed, or have
+        # an independent instance created.  This ensures that defaults will
+        # always come from the standard configuration file(s)' "easy_install"
+        # section, even if this is a "develop" or "install" command, or some
+        # other embedding.
+        self._dry_run = None
+        self.verbose = self.distribution.verbose
+        self.distribution._set_command_options(
+            self, self.distribution.get_option_dict('easy_install')
+        )
+
+    def delete_blockers(self, blockers):
+        extant_blockers = (
+            filename for filename in blockers
+            if os.path.exists(filename) or os.path.islink(filename)
+        )
+        list(map(self._delete_path, extant_blockers))
+
+    def _delete_path(self, path):
+        log.info("Deleting %s", path)
+        if self.dry_run:
+            return
+
+        is_tree = os.path.isdir(path) and not os.path.islink(path)
+        remover = rmtree if is_tree else os.unlink
+        remover(path)
+
+    @staticmethod
+    def _render_version():
+        """
+        Render the Setuptools version and installation details, then exit.
+        """
+        ver = sys.version[:3]
+        dist = get_distribution('setuptools')
+        tmpl = 'setuptools {dist.version} from {dist.location} (Python {ver})'
+        print(tmpl.format(**locals()))
+        raise SystemExit()
+
+    def finalize_options(self):
+        self.version and self._render_version()
+
+        py_version = sys.version.split()[0]
+        prefix, exec_prefix = get_config_vars('prefix', 'exec_prefix')
+
+        self.config_vars = {
+            'dist_name': self.distribution.get_name(),
+            'dist_version': self.distribution.get_version(),
+            'dist_fullname': self.distribution.get_fullname(),
+            'py_version': py_version,
+            'py_version_short': py_version[0:3],
+            'py_version_nodot': py_version[0] + py_version[2],
+            'sys_prefix': prefix,
+            'prefix': prefix,
+            'sys_exec_prefix': exec_prefix,
+            'exec_prefix': exec_prefix,
+            # Only python 3.2+ has abiflags
+            'abiflags': getattr(sys, 'abiflags', ''),
+        }
+
+        if site.ENABLE_USER_SITE:
+            self.config_vars['userbase'] = self.install_userbase
+            self.config_vars['usersite'] = self.install_usersite
+
+        self._fix_install_dir_for_user_site()
+
+        self.expand_basedirs()
+        self.expand_dirs()
+
+        self._expand(
+            'install_dir', 'script_dir', 'build_directory',
+            'site_dirs',
+        )
+        # If a non-default installation directory was specified, default the
+        # script directory to match it.
+        if self.script_dir is None:
+            self.script_dir = self.install_dir
+
+        if self.no_find_links is None:
+            self.no_find_links = False
+
+        # Let install_dir get set by install_lib command, which in turn
+        # gets its info from the install command, and takes into account
+        # --prefix and --home and all that other crud.
+        self.set_undefined_options(
+            'install_lib', ('install_dir', 'install_dir')
+        )
+        # Likewise, set default script_dir from 'install_scripts.install_dir'
+        self.set_undefined_options(
+            'install_scripts', ('install_dir', 'script_dir')
+        )
+
+        if self.user and self.install_purelib:
+            self.install_dir = self.install_purelib
+            self.script_dir = self.install_scripts
+        # default --record from the install command
+        self.set_undefined_options('install', ('record', 'record'))
+        # Should this be moved to the if statement below? It's not used
+        # elsewhere
+        normpath = map(normalize_path, sys.path)
+        self.all_site_dirs = get_site_dirs()
+        if self.site_dirs is not None:
+            site_dirs = [
+                os.path.expanduser(s.strip()) for s in
+                self.site_dirs.split(',')
+            ]
+            for d in site_dirs:
+                if not os.path.isdir(d):
+                    log.warn("%s (in --site-dirs) does not exist", d)
+                elif normalize_path(d) not in normpath:
+                    raise DistutilsOptionError(
+                        d + " (in --site-dirs) is not on sys.path"
+                    )
+                else:
+                    self.all_site_dirs.append(normalize_path(d))
+        if not self.editable:
+            self.check_site_dir()
+        self.index_url = self.index_url or "https://pypi.python.org/simple"
+        self.shadow_path = self.all_site_dirs[:]
+        for path_item in self.install_dir, normalize_path(self.script_dir):
+            if path_item not in self.shadow_path:
+                self.shadow_path.insert(0, path_item)
+
+        if self.allow_hosts is not None:
+            hosts = [s.strip() for s in self.allow_hosts.split(',')]
+        else:
+            hosts = ['*']
+        if self.package_index is None:
+            self.package_index = self.create_index(
+                self.index_url, search_path=self.shadow_path, hosts=hosts,
+            )
+        self.local_index = Environment(self.shadow_path + sys.path)
+
+        if self.find_links is not None:
+            if isinstance(self.find_links, six.string_types):
+                self.find_links = self.find_links.split()
+        else:
+            self.find_links = []
+        if self.local_snapshots_ok:
+            self.package_index.scan_egg_links(self.shadow_path + sys.path)
+        if not self.no_find_links:
+            self.package_index.add_find_links(self.find_links)
+        self.set_undefined_options('install_lib', ('optimize', 'optimize'))
+        if not isinstance(self.optimize, int):
+            try:
+                self.optimize = int(self.optimize)
+                if not (0 <= self.optimize <= 2):
+                    raise ValueError
+            except ValueError:
+                raise DistutilsOptionError("--optimize must be 0, 1, or 2")
+
+        if self.editable and not self.build_directory:
+            raise DistutilsArgError(
+                "Must specify a build directory (-b) when using --editable"
+            )
+        if not self.args:
+            raise DistutilsArgError(
+                "No urls, filenames, or requirements specified (see --help)")
+
+        self.outputs = []
+
+    def _fix_install_dir_for_user_site(self):
+        """
+        Fix the install_dir if "--user" was used.
+        """
+        if not self.user or not site.ENABLE_USER_SITE:
+            return
+
+        self.create_home_path()
+        if self.install_userbase is None:
+            msg = "User base directory is not specified"
+            raise DistutilsPlatformError(msg)
+        self.install_base = self.install_platbase = self.install_userbase
+        scheme_name = os.name.replace('posix', 'unix') + '_user'
+        self.select_scheme(scheme_name)
+
+    def _expand_attrs(self, attrs):
+        for attr in attrs:
+            val = getattr(self, attr)
+            if val is not None:
+                if os.name == 'posix' or os.name == 'nt':
+                    val = os.path.expanduser(val)
+                val = subst_vars(val, self.config_vars)
+                setattr(self, attr, val)
+
+    def expand_basedirs(self):
+        """Calls `os.path.expanduser` on install_base, install_platbase and
+        root."""
+        self._expand_attrs(['install_base', 'install_platbase', 'root'])
+
+    def expand_dirs(self):
+        """Calls `os.path.expanduser` on install dirs."""
+        dirs = [
+            'install_purelib',
+            'install_platlib',
+            'install_lib',
+            'install_headers',
+            'install_scripts',
+            'install_data',
+        ]
+        self._expand_attrs(dirs)
+
+    def run(self):
+        if self.verbose != self.distribution.verbose:
+            log.set_verbosity(self.verbose)
+        try:
+            for spec in self.args:
+                self.easy_install(spec, not self.no_deps)
+            if self.record:
+                outputs = self.outputs
+                if self.root:  # strip any package prefix
+                    root_len = len(self.root)
+                    for counter in range(len(outputs)):
+                        outputs[counter] = outputs[counter][root_len:]
+                from distutils import file_util
+
+                self.execute(
+                    file_util.write_file, (self.record, outputs),
+                    "writing list of installed files to '%s'" %
+                    self.record
+                )
+            self.warn_deprecated_options()
+        finally:
+            log.set_verbosity(self.distribution.verbose)
+
+    def pseudo_tempname(self):
+        """Return a pseudo-tempname base in the install directory.
+        This code is intentionally naive; if a malicious party can write to
+        the target directory you're already in deep doodoo.
+        """
+        try:
+            pid = os.getpid()
+        except Exception:
+            pid = random.randint(0, sys.maxsize)
+        return os.path.join(self.install_dir, "test-easy-install-%s" % pid)
+
+    def warn_deprecated_options(self):
+        pass
+
+    def check_site_dir(self):
+        """Verify that self.install_dir is .pth-capable dir, if needed"""
+
+        instdir = normalize_path(self.install_dir)
+        pth_file = os.path.join(instdir, 'easy-install.pth')
+
+        # Is it a configured, PYTHONPATH, implicit, or explicit site dir?
+        is_site_dir = instdir in self.all_site_dirs
+
+        if not is_site_dir and not self.multi_version:
+            # No?  Then directly test whether it does .pth file processing
+            is_site_dir = self.check_pth_processing()
+        else:
+            # make sure we can write to target dir
+            testfile = self.pseudo_tempname() + '.write-test'
+            test_exists = os.path.exists(testfile)
+            try:
+                if test_exists:
+                    os.unlink(testfile)
+                open(testfile, 'w').close()
+                os.unlink(testfile)
+            except (OSError, IOError):
+                self.cant_write_to_target()
+
+        if not is_site_dir and not self.multi_version:
+            # Can't install non-multi to non-site dir
+            raise DistutilsError(self.no_default_version_msg())
+
+        if is_site_dir:
+            if self.pth_file is None:
+                self.pth_file = PthDistributions(pth_file, self.all_site_dirs)
+        else:
+            self.pth_file = None
+
+        if instdir not in map(normalize_path, _pythonpath()):
+            # only PYTHONPATH dirs need a site.py, so pretend it's there
+            self.sitepy_installed = True
+        elif self.multi_version and not os.path.exists(pth_file):
+            self.sitepy_installed = True  # don't need site.py in this case
+            self.pth_file = None  # and don't create a .pth file
+        self.install_dir = instdir
+
+    __cant_write_msg = textwrap.dedent("""
+        can't create or remove files in install directory
+
+        The following error occurred while trying to add or remove files in the
+        installation directory:
+
+            %s
+
+        The installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
+
+            %s
+        """).lstrip()
+
+    __not_exists_id = textwrap.dedent("""
+        This directory does not currently exist.  Please create it and try again, or
+        choose a different installation directory (using the -d or --install-dir
+        option).
+        """).lstrip()
+
+    __access_msg = textwrap.dedent("""
+        Perhaps your account does not have write access to this directory?  If the
+        installation directory is a system-owned directory, you may need to sign in
+        as the administrator or "root" account.  If you do not have administrative
+        access to this machine, you may wish to choose a different installation
+        directory, preferably one that is listed in your PYTHONPATH environment
+        variable.
+
+        For information on other options, you may wish to consult the
+        documentation at:
+
+          https://setuptools.readthedocs.io/en/latest/easy_install.html
+
+        Please make the appropriate changes for your system and try again.
+        """).lstrip()
+
+    def cant_write_to_target(self):
+        msg = self.__cant_write_msg % (sys.exc_info()[1], self.install_dir,)
+
+        if not os.path.exists(self.install_dir):
+            msg += '\n' + self.__not_exists_id
+        else:
+            msg += '\n' + self.__access_msg
+        raise DistutilsError(msg)
+
+    def check_pth_processing(self):
+        """Empirically verify whether .pth files are supported in inst. dir"""
+        instdir = self.install_dir
+        log.info("Checking .pth file support in %s", instdir)
+        pth_file = self.pseudo_tempname() + ".pth"
+        ok_file = pth_file + '.ok'
+        ok_exists = os.path.exists(ok_file)
+        tmpl = _one_liner("""
+            import os
+            f = open({ok_file!r}, 'w')
+            f.write('OK')
+            f.close()
+            """) + '\n'
+        try:
+            if ok_exists:
+                os.unlink(ok_file)
+            dirname = os.path.dirname(ok_file)
+            pkg_resources.py31compat.makedirs(dirname, exist_ok=True)
+            f = open(pth_file, 'w')
+        except (OSError, IOError):
+            self.cant_write_to_target()
+        else:
+            try:
+                f.write(tmpl.format(**locals()))
+                f.close()
+                f = None
+                executable = sys.executable
+                if os.name == 'nt':
+                    dirname, basename = os.path.split(executable)
+                    alt = os.path.join(dirname, 'pythonw.exe')
+                    use_alt = (
+                        basename.lower() == 'python.exe' and
+                        os.path.exists(alt)
+                    )
+                    if use_alt:
+                        # use pythonw.exe to avoid opening a console window
+                        executable = alt
+
+                from distutils.spawn import spawn
+
+                spawn([executable, '-E', '-c', 'pass'], 0)
+
+                if os.path.exists(ok_file):
+                    log.info(
+                        "TEST PASSED: %s appears to support .pth files",
+                        instdir
+                    )
+                    return True
+            finally:
+                if f:
+                    f.close()
+                if os.path.exists(ok_file):
+                    os.unlink(ok_file)
+                if os.path.exists(pth_file):
+                    os.unlink(pth_file)
+        if not self.multi_version:
+            log.warn("TEST FAILED: %s does NOT support .pth files", instdir)
+        return False
+
+    def install_egg_scripts(self, dist):
+        """Write all the scripts for `dist`, unless scripts are excluded"""
+        if not self.exclude_scripts and dist.metadata_isdir('scripts'):
+            for script_name in dist.metadata_listdir('scripts'):
+                if dist.metadata_isdir('scripts/' + script_name):
+                    # The "script" is a directory, likely a Python 3
+                    # __pycache__ directory, so skip it.
+                    continue
+                self.install_script(
+                    dist, script_name,
+                    dist.get_metadata('scripts/' + script_name)
+                )
+        self.install_wrapper_scripts(dist)
+
+    def add_output(self, path):
+        if os.path.isdir(path):
+            for base, dirs, files in os.walk(path):
+                for filename in files:
+                    self.outputs.append(os.path.join(base, filename))
+        else:
+            self.outputs.append(path)
+
+    def not_editable(self, spec):
+        if self.editable:
+            raise DistutilsArgError(
+                "Invalid argument %r: you can't use filenames or URLs "
+                "with --editable (except via the --find-links option)."
+                % (spec,)
+            )
+
+    def check_editable(self, spec):
+        if not self.editable:
+            return
+
+        if os.path.exists(os.path.join(self.build_directory, spec.key)):
+            raise DistutilsArgError(
+                "%r already exists in %s; can't do a checkout there" %
+                (spec.key, self.build_directory)
+            )
+
+    @contextlib.contextmanager
+    def _tmpdir(self):
+        tmpdir = tempfile.mkdtemp(prefix=six.u("easy_install-"))
+        try:
+            # cast to str as workaround for #709 and #710 and #712
+            yield str(tmpdir)
+        finally:
+            os.path.exists(tmpdir) and rmtree(rmtree_safe(tmpdir))
+
+    def easy_install(self, spec, deps=False):
+        if not self.editable:
+            self.install_site_py()
+
+        with self._tmpdir() as tmpdir:
+            if not isinstance(spec, Requirement):
+                if URL_SCHEME(spec):
+                    # It's a url, download it to tmpdir and process
+                    self.not_editable(spec)
+                    dl = self.package_index.download(spec, tmpdir)
+                    return self.install_item(None, dl, tmpdir, deps, True)
+
+                elif os.path.exists(spec):
+                    # Existing file or directory, just process it directly
+                    self.not_editable(spec)
+                    return self.install_item(None, spec, tmpdir, deps, True)
+                else:
+                    spec = parse_requirement_arg(spec)
+
+            self.check_editable(spec)
+            dist = self.package_index.fetch_distribution(
+                spec, tmpdir, self.upgrade, self.editable,
+                not self.always_copy, self.local_index
+            )
+            if dist is None:
+                msg = "Could not find suitable distribution for %r" % spec
+                if self.always_copy:
+                    msg += " (--always-copy skips system and development eggs)"
+                raise DistutilsError(msg)
+            elif dist.precedence == DEVELOP_DIST:
+                # .egg-info dists don't need installing, just process deps
+                self.process_distribution(spec, dist, deps, "Using")
+                return dist
+            else:
+                return self.install_item(spec, dist.location, tmpdir, deps)
+
+    def install_item(self, spec, download, tmpdir, deps, install_needed=False):
+
+        # Installation is also needed if file in tmpdir or is not an egg
+        install_needed = install_needed or self.always_copy
+        install_needed = install_needed or os.path.dirname(download) == tmpdir
+        install_needed = install_needed or not download.endswith('.egg')
+        install_needed = install_needed or (
+            self.always_copy_from is not None and
+            os.path.dirname(normalize_path(download)) ==
+            normalize_path(self.always_copy_from)
+        )
+
+        if spec and not install_needed:
+            # at this point, we know it's a local .egg, we just don't know if
+            # it's already installed.
+            for dist in self.local_index[spec.project_name]:
+                if dist.location == download:
+                    break
+            else:
+                install_needed = True  # it's not in the local index
+
+        log.info("Processing %s", os.path.basename(download))
+
+        if install_needed:
+            dists = self.install_eggs(spec, download, tmpdir)
+            for dist in dists:
+                self.process_distribution(spec, dist, deps)
+        else:
+            dists = [self.egg_distribution(download)]
+            self.process_distribution(spec, dists[0], deps, "Using")
+
+        if spec is not None:
+            for dist in dists:
+                if dist in spec:
+                    return dist
+
+    def select_scheme(self, name):
+        """Sets the install directories by applying the install schemes."""
+        # it's the caller's problem if they supply a bad name!
+        scheme = INSTALL_SCHEMES[name]
+        for key in SCHEME_KEYS:
+            attrname = 'install_' + key
+            if getattr(self, attrname) is None:
+                setattr(self, attrname, scheme[key])
+
+    def process_distribution(self, requirement, dist, deps=True, *info):
+        self.update_pth(dist)
+        self.package_index.add(dist)
+        if dist in self.local_index[dist.key]:
+            self.local_index.remove(dist)
+        self.local_index.add(dist)
+        self.install_egg_scripts(dist)
+        self.installed_projects[dist.key] = dist
+        log.info(self.installation_report(requirement, dist, *info))
+        if (dist.has_metadata('dependency_links.txt') and
+                not self.no_find_links):
+            self.package_index.add_find_links(
+                dist.get_metadata_lines('dependency_links.txt')
+            )
+        if not deps and not self.always_copy:
+            return
+        elif requirement is not None and dist.key != requirement.key:
+            log.warn("Skipping dependencies for %s", dist)
+            return  # XXX this is not the distribution we were looking for
+        elif requirement is None or dist not in requirement:
+            # if we wound up with a different version, resolve what we've got
+            distreq = dist.as_requirement()
+            requirement = Requirement(str(distreq))
+        log.info("Processing dependencies for %s", requirement)
+        try:
+            distros = WorkingSet([]).resolve(
+                [requirement], self.local_index, self.easy_install
+            )
+        except DistributionNotFound as e:
+            raise DistutilsError(str(e))
+        except VersionConflict as e:
+            raise DistutilsError(e.report())
+        if self.always_copy or self.always_copy_from:
+            # Force all the relevant distros to be copied or activated
+            for dist in distros:
+                if dist.key not in self.installed_projects:
+                    self.easy_install(dist.as_requirement())
+        log.info("Finished processing dependencies for %s", requirement)
+
+    def should_unzip(self, dist):
+        if self.zip_ok is not None:
+            return not self.zip_ok
+        if dist.has_metadata('not-zip-safe'):
+            return True
+        if not dist.has_metadata('zip-safe'):
+            return True
+        return False
+
+    def maybe_move(self, spec, dist_filename, setup_base):
+        dst = os.path.join(self.build_directory, spec.key)
+        if os.path.exists(dst):
+            msg = (
+                "%r already exists in %s; build directory %s will not be kept"
+            )
+            log.warn(msg, spec.key, self.build_directory, setup_base)
+            return setup_base
+        if os.path.isdir(dist_filename):
+            setup_base = dist_filename
+        else:
+            if os.path.dirname(dist_filename) == setup_base:
+                os.unlink(dist_filename)  # get it out of the tmp dir
+            contents = os.listdir(setup_base)
+            if len(contents) == 1:
+                dist_filename = os.path.join(setup_base, contents[0])
+                if os.path.isdir(dist_filename):
+                    # if the only thing there is a directory, move it instead
+                    setup_base = dist_filename
+        ensure_directory(dst)
+        shutil.move(setup_base, dst)
+        return dst
+
+    def install_wrapper_scripts(self, dist):
+        if self.exclude_scripts:
+            return
+        for args in ScriptWriter.best().get_args(dist):
+            self.write_script(*args)
+
+    def install_script(self, dist, script_name, script_text, dev_path=None):
+        """Generate a legacy script wrapper and install it"""
+        spec = str(dist.as_requirement())
+        is_script = is_python_script(script_text, script_name)
+
+        if is_script:
+            body = self._load_template(dev_path) % locals()
+            script_text = ScriptWriter.get_header(script_text) + body
+        self.write_script(script_name, _to_ascii(script_text), 'b')
+
+    @staticmethod
+    def _load_template(dev_path):
+        """
+        There are a couple of template scripts in the package. This
+        function loads one of them and prepares it for use.
+        """
+        # See https://github.com/pypa/setuptools/issues/134 for info
+        # on script file naming and downstream issues with SVR4
+        name = 'script.tmpl'
+        if dev_path:
+            name = name.replace('.tmpl', ' (dev).tmpl')
+
+        raw_bytes = resource_string('setuptools', name)
+        return raw_bytes.decode('utf-8')
+
+    def write_script(self, script_name, contents, mode="t", blockers=()):
+        """Write an executable file to the scripts directory"""
+        self.delete_blockers(  # clean up old .py/.pyw w/o a script
+            [os.path.join(self.script_dir, x) for x in blockers]
+        )
+        log.info("Installing %s script to %s", script_name, self.script_dir)
+        target = os.path.join(self.script_dir, script_name)
+        self.add_output(target)
+
+        mask = current_umask()
+        if not self.dry_run:
+            ensure_directory(target)
+            if os.path.exists(target):
+                os.unlink(target)
+            with open(target, "w" + mode) as f:
+                f.write(contents)
+            chmod(target, 0o777 - mask)
+
+    def install_eggs(self, spec, dist_filename, tmpdir):
+        # .egg dirs or files are already built, so just return them
+        if dist_filename.lower().endswith('.egg'):
+            return [self.install_egg(dist_filename, tmpdir)]
+        elif dist_filename.lower().endswith('.exe'):
+            return [self.install_exe(dist_filename, tmpdir)]
+        elif dist_filename.lower().endswith('.whl'):
+            return [self.install_wheel(dist_filename, tmpdir)]
+
+        # Anything else, try to extract and build
+        setup_base = tmpdir
+        if os.path.isfile(dist_filename) and not dist_filename.endswith('.py'):
+            unpack_archive(dist_filename, tmpdir, self.unpack_progress)
+        elif os.path.isdir(dist_filename):
+            setup_base = os.path.abspath(dist_filename)
+
+        if (setup_base.startswith(tmpdir)  # something we downloaded
+                and self.build_directory and spec is not None):
+            setup_base = self.maybe_move(spec, dist_filename, setup_base)
+
+        # Find the setup.py file
+        setup_script = os.path.join(setup_base, 'setup.py')
+
+        if not os.path.exists(setup_script):
+            setups = glob(os.path.join(setup_base, '*', 'setup.py'))
+            if not setups:
+                raise DistutilsError(
+                    "Couldn't find a setup script in %s" %
+                    os.path.abspath(dist_filename)
+                )
+            if len(setups) > 1:
+                raise DistutilsError(
+                    "Multiple setup scripts in %s" %
+                    os.path.abspath(dist_filename)
+                )
+            setup_script = setups[0]
+
+        # Now run it, and return the result
+        if self.editable:
+            log.info(self.report_editable(spec, setup_script))
+            return []
+        else:
+            return self.build_and_install(setup_script, setup_base)
+
+    def egg_distribution(self, egg_path):
+        if os.path.isdir(egg_path):
+            metadata = PathMetadata(egg_path, os.path.join(egg_path,
+                                                           'EGG-INFO'))
+        else:
+            metadata = EggMetadata(zipimport.zipimporter(egg_path))
+        return Distribution.from_filename(egg_path, metadata=metadata)
+
+    def install_egg(self, egg_path, tmpdir):
+        destination = os.path.join(
+            self.install_dir,
+            os.path.basename(egg_path),
+        )
+        destination = os.path.abspath(destination)
+        if not self.dry_run:
+            ensure_directory(destination)
+
+        dist = self.egg_distribution(egg_path)
+        if not samefile(egg_path, destination):
+            if os.path.isdir(destination) and not os.path.islink(destination):
+                dir_util.remove_tree(destination, dry_run=self.dry_run)
+            elif os.path.exists(destination):
+                self.execute(
+                    os.unlink,
+                    (destination,),
+                    "Removing " + destination,
+                )
+            try:
+                new_dist_is_zipped = False
+                if os.path.isdir(egg_path):
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copytree, "Copying"
+                elif self.should_unzip(dist):
+                    self.mkpath(destination)
+                    f, m = self.unpack_and_compile, "Extracting"
+                else:
+                    new_dist_is_zipped = True
+                    if egg_path.startswith(tmpdir):
+                        f, m = shutil.move, "Moving"
+                    else:
+                        f, m = shutil.copy2, "Copying"
+                self.execute(
+                    f,
+                    (egg_path, destination),
+                    (m + " %s to %s") % (
+                        os.path.basename(egg_path),
+                        os.path.dirname(destination)
+                    ),
+                )
+                update_dist_caches(
+                    destination,
+                    fix_zipimporter_caches=new_dist_is_zipped,
+                )
+            except Exception:
+                update_dist_caches(destination, fix_zipimporter_caches=False)
+                raise
+
+        self.add_output(destination)
+        return self.egg_distribution(destination)
+
+    def install_exe(self, dist_filename, tmpdir):
+        # See if it's valid, get data
+        cfg = extract_wininst_cfg(dist_filename)
+        if cfg is None:
+            raise DistutilsError(
+                "%s is not a valid distutils Windows .exe" % dist_filename
+            )
+        # Create a dummy distribution object until we build the real distro
+        dist = Distribution(
+            None,
+            project_name=cfg.get('metadata', 'name'),
+            version=cfg.get('metadata', 'version'), platform=get_platform(),
+        )
+
+        # Convert the .exe to an unpacked egg
+        egg_path = os.path.join(tmpdir, dist.egg_name() + '.egg')
+        dist.location = egg_path
+        egg_tmp = egg_path + '.tmp'
+        _egg_info = os.path.join(egg_tmp, 'EGG-INFO')
+        pkg_inf = os.path.join(_egg_info, 'PKG-INFO')
+        ensure_directory(pkg_inf)  # make sure EGG-INFO dir exists
+        dist._provider = PathMetadata(egg_tmp, _egg_info)  # XXX
+        self.exe_to_egg(dist_filename, egg_tmp)
+
+        # Write EGG-INFO/PKG-INFO
+        if not os.path.exists(pkg_inf):
+            f = open(pkg_inf, 'w')
+            f.write('Metadata-Version: 1.0\n')
+            for k, v in cfg.items('metadata'):
+                if k != 'target_version':
+                    f.write('%s: %s\n' % (k.replace('_', '-').title(), v))
+            f.close()
+        script_dir = os.path.join(_egg_info, 'scripts')
+        # delete entry-point scripts to avoid duping
+        self.delete_blockers([
+            os.path.join(script_dir, args[0])
+            for args in ScriptWriter.get_args(dist)
+        ])
+        # Build .egg file from tmpdir
+        bdist_egg.make_zipfile(
+            egg_path, egg_tmp, verbose=self.verbose, dry_run=self.dry_run,
+        )
+        # install the .egg
+        return self.install_egg(egg_path, tmpdir)
+
+    def exe_to_egg(self, dist_filename, egg_tmp):
+        """Extract a bdist_wininst to the directories an egg would use"""
+        # Check for .pth file and set up prefix translations
+        prefixes = get_exe_prefixes(dist_filename)
+        to_compile = []
+        native_libs = []
+        top_level = {}
+
+        def process(src, dst):
+            s = src.lower()
+            for old, new in prefixes:
+                if s.startswith(old):
+                    src = new + src[len(old):]
+                    parts = src.split('/')
+                    dst = os.path.join(egg_tmp, *parts)
+                    dl = dst.lower()
+                    if dl.endswith('.pyd') or dl.endswith('.dll'):
+                        parts[-1] = bdist_egg.strip_module(parts[-1])
+                        top_level[os.path.splitext(parts[0])[0]] = 1
+                        native_libs.append(src)
+                    elif dl.endswith('.py') and old != 'SCRIPTS/':
+                        top_level[os.path.splitext(parts[0])[0]] = 1
+                        to_compile.append(dst)
+                    return dst
+            if not src.endswith('.pth'):
+                log.warn("WARNING: can't process %s", src)
+            return None
+
+        # extract, tracking .pyd/.dll->native_libs and .py -> to_compile
+        unpack_archive(dist_filename, egg_tmp, process)
+        stubs = []
+        for res in native_libs:
+            if res.lower().endswith('.pyd'):  # create stubs for .pyd's
+                parts = res.split('/')
+                resource = parts[-1]
+                parts[-1] = bdist_egg.strip_module(parts[-1]) + '.py'
+                pyfile = os.path.join(egg_tmp, *parts)
+                to_compile.append(pyfile)
+                stubs.append(pyfile)
+                bdist_egg.write_stub(resource, pyfile)
+        self.byte_compile(to_compile)  # compile .py's
+        bdist_egg.write_safety_flag(
+            os.path.join(egg_tmp, 'EGG-INFO'),
+            bdist_egg.analyze_egg(egg_tmp, stubs))  # write zip-safety flag
+
+        for name in 'top_level', 'native_libs':
+            if locals()[name]:
+                txt = os.path.join(egg_tmp, 'EGG-INFO', name + '.txt')
+                if not os.path.exists(txt):
+                    f = open(txt, 'w')
+                    f.write('\n'.join(locals()[name]) + '\n')
+                    f.close()
+
+    def install_wheel(self, wheel_path, tmpdir):
+        wheel = Wheel(wheel_path)
+        assert wheel.is_compatible()
+        destination = os.path.join(self.install_dir, wheel.egg_name())
+        destination = os.path.abspath(destination)
+        if not self.dry_run:
+            ensure_directory(destination)
+        if os.path.isdir(destination) and not os.path.islink(destination):
+            dir_util.remove_tree(destination, dry_run=self.dry_run)
+        elif os.path.exists(destination):
+            self.execute(
+                os.unlink,
+                (destination,),
+                "Removing " + destination,
+            )
+        try:
+            self.execute(
+                wheel.install_as_egg,
+                (destination,),
+                ("Installing %s to %s") % (
+                    os.path.basename(wheel_path),
+                    os.path.dirname(destination)
+                ),
+            )
+        finally:
+            update_dist_caches(destination, fix_zipimporter_caches=False)
+        self.add_output(destination)
+        return self.egg_distribution(destination)
+
+    __mv_warning = textwrap.dedent("""
+        Because this distribution was installed --multi-version, before you can
+        import modules from this package in an application, you will need to
+        'import pkg_resources' and then use a 'require()' call similar to one of
+        these examples, in order to select the desired version:
+
+            pkg_resources.require("%(name)s")  # latest installed version
+            pkg_resources.require("%(name)s==%(version)s")  # this exact version
+            pkg_resources.require("%(name)s>=%(version)s")  # this version or higher
+        """).lstrip()
+
+    __id_warning = textwrap.dedent("""
+        Note also that the installation directory must be on sys.path at runtime for
+        this to work.  (e.g. by being the application's script directory, by being on
+        PYTHONPATH, or by being added to sys.path by your code.)
+        """)
+
+    def installation_report(self, req, dist, what="Installed"):
+        """Helpful installation message for display to package users"""
+        msg = "\n%(what)s %(eggloc)s%(extras)s"
+        if self.multi_version and not self.no_report:
+            msg += '\n' + self.__mv_warning
+            if self.install_dir not in map(normalize_path, sys.path):
+                msg += '\n' + self.__id_warning
+
+        eggloc = dist.location
+        name = dist.project_name
+        version = dist.version
+        extras = ''  # TODO: self.report_extras(req, dist)
+        return msg % locals()
+
+    __editable_msg = textwrap.dedent("""
+        Extracted editable version of %(spec)s to %(dirname)s
+
+        If it uses setuptools in its setup script, you can activate it in
+        "development" mode by going to that directory and running::
+
+            %(python)s setup.py develop
+
+        See the setuptools documentation for the "develop" command for more info.
+        """).lstrip()
+
+    def report_editable(self, spec, setup_script):
+        dirname = os.path.dirname(setup_script)
+        python = sys.executable
+        return '\n' + self.__editable_msg % locals()
+
+    def run_setup(self, setup_script, setup_base, args):
+        sys.modules.setdefault('distutils.command.bdist_egg', bdist_egg)
+        sys.modules.setdefault('distutils.command.egg_info', egg_info)
+
+        args = list(args)
+        if self.verbose > 2:
+            v = 'v' * (self.verbose - 1)
+            args.insert(0, '-' + v)
+        elif self.verbose < 2:
+            args.insert(0, '-q')
+        if self.dry_run:
+            args.insert(0, '-n')
+        log.info(
+            "Running %s %s", setup_script[len(setup_base) + 1:], ' '.join(args)
+        )
+        try:
+            run_setup(setup_script, args)
+        except SystemExit as v:
+            raise DistutilsError("Setup script exited with %s" % (v.args[0],))
+
+    def build_and_install(self, setup_script, setup_base):
+        args = ['bdist_egg', '--dist-dir']
+
+        dist_dir = tempfile.mkdtemp(
+            prefix='egg-dist-tmp-', dir=os.path.dirname(setup_script)
+        )
+        try:
+            self._set_fetcher_options(os.path.dirname(setup_script))
+            args.append(dist_dir)
+
+            self.run_setup(setup_script, setup_base, args)
+            all_eggs = Environment([dist_dir])
+            eggs = []
+            for key in all_eggs:
+                for dist in all_eggs[key]:
+                    eggs.append(self.install_egg(dist.location, setup_base))
+            if not eggs and not self.dry_run:
+                log.warn("No eggs found in %s (setup script problem?)",
+                         dist_dir)
+            return eggs
+        finally:
+            rmtree(dist_dir)
+            log.set_verbosity(self.verbose)  # restore our log verbosity
+
+    def _set_fetcher_options(self, base):
+        """
+        When easy_install is about to run bdist_egg on a source dist, that
+        source dist might have 'setup_requires' directives, requiring
+        additional fetching. Ensure the fetcher options given to easy_install
+        are available to that command as well.
+        """
+        # find the fetch options from easy_install and write them out
+        # to the setup.cfg file.
+        ei_opts = self.distribution.get_option_dict('easy_install').copy()
+        fetch_directives = (
+            'find_links', 'site_dirs', 'index_url', 'optimize',
+            'site_dirs', 'allow_hosts',
+        )
+        fetch_options = {}
+        for key, val in ei_opts.items():
+            if key not in fetch_directives:
+                continue
+            fetch_options[key.replace('_', '-')] = val[1]
+        # create a settings dictionary suitable for `edit_config`
+        settings = dict(easy_install=fetch_options)
+        cfg_filename = os.path.join(base, 'setup.cfg')
+        setopt.edit_config(cfg_filename, settings)
+
+    def update_pth(self, dist):
+        if self.pth_file is None:
+            return
+
+        for d in self.pth_file[dist.key]:  # drop old entries
+            if self.multi_version or d.location != dist.location:
+                log.info("Removing %s from easy-install.pth file", d)
+                self.pth_file.remove(d)
+                if d.location in self.shadow_path:
+                    self.shadow_path.remove(d.location)
+
+        if not self.multi_version:
+            if dist.location in self.pth_file.paths:
+                log.info(
+                    "%s is already the active version in easy-install.pth",
+                    dist,
+                )
+            else:
+                log.info("Adding %s to easy-install.pth file", dist)
+                self.pth_file.add(dist)  # add new entry
+                if dist.location not in self.shadow_path:
+                    self.shadow_path.append(dist.location)
+
+        if not self.dry_run:
+
+            self.pth_file.save()
+
+            if dist.key == 'setuptools':
+                # Ensure that setuptools itself never becomes unavailable!
+                # XXX should this check for latest version?
+                filename = os.path.join(self.install_dir, 'setuptools.pth')
+                if os.path.islink(filename):
+                    os.unlink(filename)
+                f = open(filename, 'wt')
+                f.write(self.pth_file.make_relative(dist.location) + '\n')
+                f.close()
+
+    def unpack_progress(self, src, dst):
+        # Progress filter for unpacking
+        log.debug("Unpacking %s to %s", src, dst)
+        return dst  # only unpack-and-compile skips files for dry run
+
+    def unpack_and_compile(self, egg_path, destination):
+        to_compile = []
+        to_chmod = []
+
+        def pf(src, dst):
+            if dst.endswith('.py') and not src.startswith('EGG-INFO/'):
+                to_compile.append(dst)
+            elif dst.endswith('.dll') or dst.endswith('.so'):
+                to_chmod.append(dst)
+            self.unpack_progress(src, dst)
+            return not self.dry_run and dst or None
+
+        unpack_archive(egg_path, destination, pf)
+        self.byte_compile(to_compile)
+        if not self.dry_run:
+            for f in to_chmod:
+                mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755
+                chmod(f, mode)
+
+    def byte_compile(self, to_compile):
+        if sys.dont_write_bytecode:
+            self.warn('byte-compiling is disabled, skipping.')
+            return
+
+        from distutils.util import byte_compile
+
+        try:
+            # try to make the byte compile messages quieter
+            log.set_verbosity(self.verbose - 1)
+
+            byte_compile(to_compile, optimize=0, force=1, dry_run=self.dry_run)
+            if self.optimize:
+                byte_compile(
+                    to_compile, optimize=self.optimize, force=1,
+                    dry_run=self.dry_run,
+                )
+        finally:
+            log.set_verbosity(self.verbose)  # restore original verbosity
+
+    __no_default_msg = textwrap.dedent("""
+        bad install directory or PYTHONPATH
+
+        You are attempting to install a package to a directory that is not
+        on PYTHONPATH and which Python does not read ".pth" files from.  The
+        installation directory you specified (via --install-dir, --prefix, or
+        the distutils default setting) was:
+
+            %s
+
+        and your PYTHONPATH environment variable currently contains:
+
+            %r
+
+        Here are some of your options for correcting the problem:
+
+        * You can choose a different installation directory, i.e., one that is
+          on PYTHONPATH or supports .pth files
+
+        * You can add the installation directory to the PYTHONPATH environment
+          variable.  (It must then also be on PYTHONPATH whenever you run
+          Python and want to use the package(s) you are installing.)
+
+        * You can set up the installation directory to support ".pth" files by
+          using one of the approaches described here:
+
+          https://setuptools.readthedocs.io/en/latest/easy_install.html#custom-installation-locations
+
+
+        Please make the appropriate changes for your system and try again.""").lstrip()
+
+    def no_default_version_msg(self):
+        template = self.__no_default_msg
+        return template % (self.install_dir, os.environ.get('PYTHONPATH', ''))
+
+    def install_site_py(self):
+        """Make sure there's a site.py in the target dir, if needed"""
+
+        if self.sitepy_installed:
+            return  # already did it, or don't need to
+
+        sitepy = os.path.join(self.install_dir, "site.py")
+        source = resource_string("setuptools", "site-patch.py")
+        source = source.decode('utf-8')
+        current = ""
+
+        if os.path.exists(sitepy):
+            log.debug("Checking existing site.py in %s", self.install_dir)
+            with io.open(sitepy) as strm:
+                current = strm.read()
+
+            if not current.startswith('def __boot():'):
+                raise DistutilsError(
+                    "%s is not a setuptools-generated site.py; please"
+                    " remove it." % sitepy
+                )
+
+        if current != source:
+            log.info("Creating %s", sitepy)
+            if not self.dry_run:
+                ensure_directory(sitepy)
+                with io.open(sitepy, 'w', encoding='utf-8') as strm:
+                    strm.write(source)
+            self.byte_compile([sitepy])
+
+        self.sitepy_installed = True
+
+    def create_home_path(self):
+        """Create directories under ~."""
+        if not self.user:
+            return
+        home = convert_path(os.path.expanduser("~"))
+        for name, path in six.iteritems(self.config_vars):
+            if path.startswith(home) and not os.path.isdir(path):
+                self.debug_print("os.makedirs('%s', 0o700)" % path)
+                os.makedirs(path, 0o700)
+
+    INSTALL_SCHEMES = dict(
+        posix=dict(
+            install_dir='$base/lib/python$py_version_short/site-packages',
+            script_dir='$base/bin',
+        ),
+    )
+
+    DEFAULT_SCHEME = dict(
+        install_dir='$base/Lib/site-packages',
+        script_dir='$base/Scripts',
+    )
+
+    def _expand(self, *attrs):
+        config_vars = self.get_finalized_command('install').config_vars
+
+        if self.prefix:
+            # Set default install_dir/scripts from --prefix
+            config_vars = config_vars.copy()
+            config_vars['base'] = self.prefix
+            scheme = self.INSTALL_SCHEMES.get(os.name, self.DEFAULT_SCHEME)
+            for attr, val in scheme.items():
+                if getattr(self, attr, None) is None:
+                    setattr(self, attr, val)
+
+        from distutils.util import subst_vars
+
+        for attr in attrs:
+            val = getattr(self, attr)
+            if val is not None:
+                val = subst_vars(val, config_vars)
+                if os.name == 'posix':
+                    val = os.path.expanduser(val)
+                setattr(self, attr, val)
+
+
+def _pythonpath():
+    items = os.environ.get('PYTHONPATH', '').split(os.pathsep)
+    return filter(None, items)
+
+
+def get_site_dirs():
+    """
+    Return a list of 'site' dirs
+    """
+
+    sitedirs = []
+
+    # start with PYTHONPATH
+    sitedirs.extend(_pythonpath())
+
+    prefixes = [sys.prefix]
+    if sys.exec_prefix != sys.prefix:
+        prefixes.append(sys.exec_prefix)
+    for prefix in prefixes:
+        if prefix:
+            if sys.platform in ('os2emx', 'riscos'):
+                sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
+            elif os.sep == '/':
+                sitedirs.extend([
+                    os.path.join(
+                        prefix,
+                        "lib",
+                        "python" + sys.version[:3],
+                        "site-packages",
+                    ),
+                    os.path.join(prefix, "lib", "site-python"),
+                ])
+            else:
+                sitedirs.extend([
+                    prefix,
+                    os.path.join(prefix, "lib", "site-packages"),
+                ])
+            if sys.platform == 'darwin':
+                # for framework builds *only* we add the standard Apple
+                # locations. Currently only per-user, but /Library and
+                # /Network/Library could be added too
+                if 'Python.framework' in prefix:
+                    home = os.environ.get('HOME')
+                    if home:
+                        home_sp = os.path.join(
+                            home,
+                            'Library',
+                            'Python',
+                            sys.version[:3],
+                            'site-packages',
+                        )
+                        sitedirs.append(home_sp)
+    lib_paths = get_path('purelib'), get_path('platlib')
+    for site_lib in lib_paths:
+        if site_lib not in sitedirs:
+            sitedirs.append(site_lib)
+
+    if site.ENABLE_USER_SITE:
+        sitedirs.append(site.USER_SITE)
+
+    try:
+        sitedirs.extend(site.getsitepackages())
+    except AttributeError:
+        pass
+
+    sitedirs = list(map(normalize_path, sitedirs))
+
+    return sitedirs
+
+
+def expand_paths(inputs):
+    """Yield sys.path directories that might contain "old-style" packages"""
+
+    seen = {}
+
+    for dirname in inputs:
+        dirname = normalize_path(dirname)
+        if dirname in seen:
+            continue
+
+        seen[dirname] = 1
+        if not os.path.isdir(dirname):
+            continue
+
+        files = os.listdir(dirname)
+        yield dirname, files
+
+        for name in files:
+            if not name.endswith('.pth'):
+                # We only care about the .pth files
+                continue
+            if name in ('easy-install.pth', 'setuptools.pth'):
+                # Ignore .pth files that we control
+                continue
+
+            # Read the .pth file
+            f = open(os.path.join(dirname, name))
+            lines = list(yield_lines(f))
+            f.close()
+
+            # Yield existing non-dupe, non-import directory lines from it
+            for line in lines:
+                if not line.startswith("import"):
+                    line = normalize_path(line.rstrip())
+                    if line not in seen:
+                        seen[line] = 1
+                        if not os.path.isdir(line):
+                            continue
+                        yield line, os.listdir(line)
+
+
+def extract_wininst_cfg(dist_filename):
+    """Extract configuration data from a bdist_wininst .exe
+
+    Returns a configparser.RawConfigParser, or None
+    """
+    f = open(dist_filename, 'rb')
+    try:
+        endrec = zipfile._EndRecData(f)
+        if endrec is None:
+            return None
+
+        prepended = (endrec[9] - endrec[5]) - endrec[6]
+        if prepended < 12:  # no wininst data here
+            return None
+        f.seek(prepended - 12)
+
+        tag, cfglen, bmlen = struct.unpack("<iii", f.read(12))
+        if tag not in (0x1234567A, 0x1234567B):
+            return None  # not a valid tag
+
+        f.seek(prepended - (12 + cfglen))
+        init = {'version': '', 'target_version': ''}
+        cfg = configparser.RawConfigParser(init)
+        try:
+            part = f.read(cfglen)
+            # Read up to the first null byte.
+            config = part.split(b'\0', 1)[0]
+            # Now the config is in bytes, but for RawConfigParser, it should
+            #  be text, so decode it.
+            config = config.decode(sys.getfilesystemencoding())
+            cfg.readfp(six.StringIO(config))
+        except configparser.Error:
+            return None
+        if not cfg.has_section('metadata') or not cfg.has_section('Setup'):
+            return None
+        return cfg
+
+    finally:
+        f.close()
+
+
+def get_exe_prefixes(exe_filename):
+    """Get exe->egg path translations for a given .exe file"""
+
+    prefixes = [
+        ('PURELIB/', ''),
+        ('PLATLIB/pywin32_system32', ''),
+        ('PLATLIB/', ''),
+        ('SCRIPTS/', 'EGG-INFO/scripts/'),
+        ('DATA/lib/site-packages', ''),
+    ]
+    z = zipfile.ZipFile(exe_filename)
+    try:
+        for info in z.infolist():
+            name = info.filename
+            parts = name.split('/')
+            if len(parts) == 3 and parts[2] == 'PKG-INFO':
+                if parts[1].endswith('.egg-info'):
+                    prefixes.insert(0, ('/'.join(parts[:2]), 'EGG-INFO/'))
+                    break
+            if len(parts) != 2 or not name.endswith('.pth'):
+                continue
+            if name.endswith('-nspkg.pth'):
+                continue
+            if parts[0].upper() in ('PURELIB', 'PLATLIB'):
+                contents = z.read(name)
+                if six.PY3:
+                    contents = contents.decode()
+                for pth in yield_lines(contents):
+                    pth = pth.strip().replace('\\', '/')
+                    if not pth.startswith('import'):
+                        prefixes.append((('%s/%s/' % (parts[0], pth)), ''))
+    finally:
+        z.close()
+    prefixes = [(x.lower(), y) for x, y in prefixes]
+    prefixes.sort()
+    prefixes.reverse()
+    return prefixes
+
+
+class PthDistributions(Environment):
+    """A .pth file with Distribution paths in it"""
+
+    dirty = False
+
+    def __init__(self, filename, sitedirs=()):
+        self.filename = filename
+        self.sitedirs = list(map(normalize_path, sitedirs))
+        self.basedir = normalize_path(os.path.dirname(self.filename))
+        self._load()
+        Environment.__init__(self, [], None, None)
+        for path in yield_lines(self.paths):
+            list(map(self.add, find_distributions(path, True)))
+
+    def _load(self):
+        self.paths = []
+        saw_import = False
+        seen = dict.fromkeys(self.sitedirs)
+        if os.path.isfile(self.filename):
+            f = open(self.filename, 'rt')
+            for line in f:
+                if line.startswith('import'):
+                    saw_import = True
+                    continue
+                path = line.rstrip()
+                self.paths.append(path)
+                if not path.strip() or path.strip().startswith('#'):
+                    continue
+                # skip non-existent paths, in case somebody deleted a package
+                # manually, and duplicate paths as well
+                path = self.paths[-1] = normalize_path(
+                    os.path.join(self.basedir, path)
+                )
+                if not os.path.exists(path) or path in seen:
+                    self.paths.pop()  # skip it
+                    self.dirty = True  # we cleaned up, so we're dirty now :)
+                    continue
+                seen[path] = 1
+            f.close()
+
+        if self.paths and not saw_import:
+            self.dirty = True  # ensure anything we touch has import wrappers
+        while self.paths and not self.paths[-1].strip():
+            self.paths.pop()
+
+    def save(self):
+        """Write changed .pth file back to disk"""
+        if not self.dirty:
+            return
+
+        rel_paths = list(map(self.make_relative, self.paths))
+        if rel_paths:
+            log.debug("Saving %s", self.filename)
+            lines = self._wrap_lines(rel_paths)
+            data = '\n'.join(lines) + '\n'
+
+            if os.path.islink(self.filename):
+                os.unlink(self.filename)
+            with open(self.filename, 'wt') as f:
+                f.write(data)
+
+        elif os.path.exists(self.filename):
+            log.debug("Deleting empty %s", self.filename)
+            os.unlink(self.filename)
+
+        self.dirty = False
+
+    @staticmethod
+    def _wrap_lines(lines):
+        return lines
+
+    def add(self, dist):
+        """Add `dist` to the distribution map"""
+        new_path = (
+            dist.location not in self.paths and (
+                dist.location not in self.sitedirs or
+                # account for '.' being in PYTHONPATH
+                dist.location == os.getcwd()
+            )
+        )
+        if new_path:
+            self.paths.append(dist.location)
+            self.dirty = True
+        Environment.add(self, dist)
+
+    def remove(self, dist):
+        """Remove `dist` from the distribution map"""
+        while dist.location in self.paths:
+            self.paths.remove(dist.location)
+            self.dirty = True
+        Environment.remove(self, dist)
+
+    def make_relative(self, path):
+        npath, last = os.path.split(normalize_path(path))
+        baselen = len(self.basedir)
+        parts = [last]
+        sep = os.altsep == '/' and '/' or os.sep
+        while len(npath) >= baselen:
+            if npath == self.basedir:
+                parts.append(os.curdir)
+                parts.reverse()
+                return sep.join(parts)
+            npath, last = os.path.split(npath)
+            parts.append(last)
+        else:
+            return path
+
+
+class RewritePthDistributions(PthDistributions):
+    @classmethod
+    def _wrap_lines(cls, lines):
+        yield cls.prelude
+        for line in lines:
+            yield line
+        yield cls.postlude
+
+    prelude = _one_liner("""
+        import sys
+        sys.__plen = len(sys.path)
+        """)
+    postlude = _one_liner("""
+        import sys
+        new = sys.path[sys.__plen:]
+        del sys.path[sys.__plen:]
+        p = getattr(sys, '__egginsert', 0)
+        sys.path[p:p] = new
+        sys.__egginsert = p + len(new)
+        """)
+
+
+if os.environ.get('SETUPTOOLS_SYS_PATH_TECHNIQUE', 'raw') == 'rewrite':
+    PthDistributions = RewritePthDistributions
+
+
+def _first_line_re():
+    """
+    Return a regular expression based on first_line_re suitable for matching
+    strings.
+    """
+    if isinstance(first_line_re.pattern, str):
+        return first_line_re
+
+    # first_line_re in Python >=3.1.4 and >=3.2.1 is a bytes pattern.
+    return re.compile(first_line_re.pattern.decode())
+
+
+def auto_chmod(func, arg, exc):
+    if func in [os.unlink, os.remove] and os.name == 'nt':
+        chmod(arg, stat.S_IWRITE)
+        return func(arg)
+    et, ev, _ = sys.exc_info()
+    six.reraise(et, (ev[0], ev[1] + (" %s %s" % (func, arg))))
+
+
+def update_dist_caches(dist_path, fix_zipimporter_caches):
+    """
+    Fix any globally cached `dist_path` related data
+
+    `dist_path` should be a path of a newly installed egg distribution (zipped
+    or unzipped).
+
+    sys.path_importer_cache contains finder objects that have been cached when
+    importing data from the original distribution. Any such finders need to be
+    cleared since the replacement distribution might be packaged differently,
+    e.g. a zipped egg distribution might get replaced with an unzipped egg
+    folder or vice versa. Having the old finders cached may then cause Python
+    to attempt loading modules from the replacement distribution using an
+    incorrect loader.
+
+    zipimport.zipimporter objects are Python loaders charged with importing
+    data packaged inside zip archives. If stale loaders referencing the
+    original distribution, are left behind, they can fail to load modules from
+    the replacement distribution. E.g. if an old zipimport.zipimporter instance
+    is used to load data from a new zipped egg archive, it may cause the
+    operation to attempt to locate the requested data in the wrong location -
+    one indicated by the original distribution's zip archive directory
+    information. Such an operation may then fail outright, e.g. report having
+    read a 'bad local file header', or even worse, it may fail silently &
+    return invalid data.
+
+    zipimport._zip_directory_cache contains cached zip archive directory
+    information for all existing zipimport.zipimporter instances and all such
+    instances connected to the same archive share the same cached directory
+    information.
+
+    If asked, and the underlying Python implementation allows it, we can fix
+    all existing zipimport.zipimporter instances instead of having to track
+    them down and remove them one by one, by updating their shared cached zip
+    archive directory information. This, of course, assumes that the
+    replacement distribution is packaged as a zipped egg.
+
+    If not asked to fix existing zipimport.zipimporter instances, we still do
+    our best to clear any remaining zipimport.zipimporter related cached data
+    that might somehow later get used when attempting to load data from the new
+    distribution and thus cause such load operations to fail. Note that when
+    tracking down such remaining stale data, we can not catch every conceivable
+    usage from here, and we clear only those that we know of and have found to
+    cause problems if left alive. Any remaining caches should be updated by
+    whomever is in charge of maintaining them, i.e. they should be ready to
+    handle us replacing their zip archives with new distributions at runtime.
+
+    """
+    # There are several other known sources of stale zipimport.zipimporter
+    # instances that we do not clear here, but might if ever given a reason to
+    # do so:
+    # * Global setuptools pkg_resources.working_set (a.k.a. 'master working
+    # set') may contain distributions which may in turn contain their
+    #   zipimport.zipimporter loaders.
+    # * Several zipimport.zipimporter loaders held by local variables further
+    #   up the function call stack when running the setuptools installation.
+    # * Already loaded modules may have their __loader__ attribute set to the
+    #   exact loader instance used when importing them. Python 3.4 docs state
+    #   that this information is intended mostly for introspection and so is
+    #   not expected to cause us problems.
+    normalized_path = normalize_path(dist_path)
+    _uncache(normalized_path, sys.path_importer_cache)
+    if fix_zipimporter_caches:
+        _replace_zip_directory_cache_data(normalized_path)
+    else:
+        # Here, even though we do not want to fix existing and now stale
+        # zipimporter cache information, we still want to remove it. Related to
+        # Python's zip archive directory information cache, we clear each of
+        # its stale entries in two phases:
+        #   1. Clear the entry so attempting to access zip archive information
+        #      via any existing stale zipimport.zipimporter instances fails.
+        #   2. Remove the entry from the cache so any newly constructed
+        #      zipimport.zipimporter instances do not end up using old stale
+        #      zip archive directory information.
+        # This whole stale data removal step does not seem strictly necessary,
+        # but has been left in because it was done before we started replacing
+        # the zip archive directory information cache content if possible, and
+        # there are no relevant unit tests that we can depend on to tell us if
+        # this is really needed.
+        _remove_and_clear_zip_directory_cache_data(normalized_path)
+
+
+def _collect_zipimporter_cache_entries(normalized_path, cache):
+    """
+    Return zipimporter cache entry keys related to a given normalized path.
+
+    Alternative path spellings (e.g. those using different character case or
+    those using alternative path separators) related to the same path are
+    included. Any sub-path entries are included as well, i.e. those
+    corresponding to zip archives embedded in other zip archives.
+
+    """
+    result = []
+    prefix_len = len(normalized_path)
+    for p in cache:
+        np = normalize_path(p)
+        if (np.startswith(normalized_path) and
+                np[prefix_len:prefix_len + 1] in (os.sep, '')):
+            result.append(p)
+    return result
+
+
+def _update_zipimporter_cache(normalized_path, cache, updater=None):
+    """
+    Update zipimporter cache data for a given normalized path.
+
+    Any sub-path entries are processed as well, i.e. those corresponding to zip
+    archives embedded in other zip archives.
+
+    Given updater is a callable taking a cache entry key and the original entry
+    (after already removing the entry from the cache), and expected to update
+    the entry and possibly return a new one to be inserted in its place.
+    Returning None indicates that the entry should not be replaced with a new
+    one. If no updater is given, the cache entries are simply removed without
+    any additional processing, the same as if the updater simply returned None.
+
+    """
+    for p in _collect_zipimporter_cache_entries(normalized_path, cache):
+        # N.B. pypy's custom zipimport._zip_directory_cache implementation does
+        # not support the complete dict interface:
+        # * Does not support item assignment, thus not allowing this function
+        #    to be used only for removing existing cache entries.
+        #  * Does not support the dict.pop() method, forcing us to use the
+        #    get/del patterns instead. For more detailed information see the
+        #    following links:
+        #      https://github.com/pypa/setuptools/issues/202#issuecomment-202913420
+        #      http://bit.ly/2h9itJX
+        old_entry = cache[p]
+        del cache[p]
+        new_entry = updater and updater(p, old_entry)
+        if new_entry is not None:
+            cache[p] = new_entry
+
+
+def _uncache(normalized_path, cache):
+    _update_zipimporter_cache(normalized_path, cache)
+
+
+def _remove_and_clear_zip_directory_cache_data(normalized_path):
+    def clear_and_remove_cached_zip_archive_directory_data(path, old_entry):
+        old_entry.clear()
+
+    _update_zipimporter_cache(
+        normalized_path, zipimport._zip_directory_cache,
+        updater=clear_and_remove_cached_zip_archive_directory_data)
+
+
+# PyPy Python implementation does not allow directly writing to the
+# zipimport._zip_directory_cache and so prevents us from attempting to correct
+# its content. The best we can do there is clear the problematic cache content
+# and have PyPy repopulate it as needed. The downside is that if there are any
+# stale zipimport.zipimporter instances laying around, attempting to use them
+# will fail due to not having its zip archive directory information available
+# instead of being automatically corrected to use the new correct zip archive
+# directory information.
+if '__pypy__' in sys.builtin_module_names:
+    _replace_zip_directory_cache_data = \
+        _remove_and_clear_zip_directory_cache_data
+else:
+
+    def _replace_zip_directory_cache_data(normalized_path):
+        def replace_cached_zip_archive_directory_data(path, old_entry):
+            # N.B. In theory, we could load the zip directory information just
+            # once for all updated path spellings, and then copy it locally and
+            # update its contained path strings to contain the correct
+            # spelling, but that seems like a way too invasive move (this cache
+            # structure is not officially documented anywhere and could in
+            # theory change with new Python releases) for no significant
+            # benefit.
+            old_entry.clear()
+            zipimport.zipimporter(path)
+            old_entry.update(zipimport._zip_directory_cache[path])
+            return old_entry
+
+        _update_zipimporter_cache(
+            normalized_path, zipimport._zip_directory_cache,
+            updater=replace_cached_zip_archive_directory_data)
+
+
+def is_python(text, filename='<string>'):
+    "Is this string a valid Python script?"
+    try:
+        compile(text, filename, 'exec')
+    except (SyntaxError, TypeError):
+        return False
+    else:
+        return True
+
+
+def is_sh(executable):
+    """Determine if the specified executable is a .sh (contains a #! line)"""
+    try:
+        with io.open(executable, encoding='latin-1') as fp:
+            magic = fp.read(2)
+    except (OSError, IOError):
+        return executable
+    return magic == '#!'
+
+
+def nt_quote_arg(arg):
+    """Quote a command line argument according to Windows parsing rules"""
+    return subprocess.list2cmdline([arg])
+
+
+def is_python_script(script_text, filename):
+    """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc.
+    """
+    if filename.endswith('.py') or filename.endswith('.pyw'):
+        return True  # extension says it's Python
+    if is_python(script_text, filename):
+        return True  # it's syntactically valid Python
+    if script_text.startswith('#!'):
+        # It begins with a '#!' line, so check if 'python' is in it somewhere
+        return 'python' in script_text.splitlines()[0].lower()
+
+    return False  # Not any Python I can recognize
+
+
+try:
+    from os import chmod as _chmod
+except ImportError:
+    # Jython compatibility
+    def _chmod(*args):
+        pass
+
+
+def chmod(path, mode):
+    log.debug("changing mode of %s to %o", path, mode)
+    try:
+        _chmod(path, mode)
+    except os.error as e:
+        log.debug("chmod failed: %s", e)
+
+
+class CommandSpec(list):
+    """
+    A command spec for a #! header, specified as a list of arguments akin to
+    those passed to Popen.
+    """
+
+    options = []
+    split_args = dict()
+
+    @classmethod
+    def best(cls):
+        """
+        Choose the best CommandSpec class based on environmental conditions.
+        """
+        return cls
+
+    @classmethod
+    def _sys_executable(cls):
+        _default = os.path.normpath(sys.executable)
+        return os.environ.get('__PYVENV_LAUNCHER__', _default)
+
+    @classmethod
+    def from_param(cls, param):
+        """
+        Construct a CommandSpec from a parameter to build_scripts, which may
+        be None.
+        """
+        if isinstance(param, cls):
+            return param
+        if isinstance(param, list):
+            return cls(param)
+        if param is None:
+            return cls.from_environment()
+        # otherwise, assume it's a string.
+        return cls.from_string(param)
+
+    @classmethod
+    def from_environment(cls):
+        return cls([cls._sys_executable()])
+
+    @classmethod
+    def from_string(cls, string):
+        """
+        Construct a command spec from a simple string representing a command
+        line parseable by shlex.split.
+        """
+        items = shlex.split(string, **cls.split_args)
+        return cls(items)
+
+    def install_options(self, script_text):
+        self.options = shlex.split(self._extract_options(script_text))
+        cmdline = subprocess.list2cmdline(self)
+        if not isascii(cmdline):
+            self.options[:0] = ['-x']
+
+    @staticmethod
+    def _extract_options(orig_script):
+        """
+        Extract any options from the first line of the script.
+        """
+        first = (orig_script + '\n').splitlines()[0]
+        match = _first_line_re().match(first)
+        options = match.group(1) or '' if match else ''
+        return options.strip()
+
+    def as_header(self):
+        return self._render(self + list(self.options))
+
+    @staticmethod
+    def _strip_quotes(item):
+        _QUOTES = '"\''
+        for q in _QUOTES:
+            if item.startswith(q) and item.endswith(q):
+                return item[1:-1]
+        return item
+
+    @staticmethod
+    def _render(items):
+        cmdline = subprocess.list2cmdline(
+            CommandSpec._strip_quotes(item.strip()) for item in items)
+        return '#!' + cmdline + '\n'
+
+
+# For pbr compat; will be removed in a future version.
+sys_executable = CommandSpec._sys_executable()
+
+
+class WindowsCommandSpec(CommandSpec):
+    split_args = dict(posix=False)
+
+
+class ScriptWriter(object):
+    """
+    Encapsulates behavior around writing entry point scripts for console and
+    gui apps.
+    """
+
+    template = textwrap.dedent(r"""
+        # EASY-INSTALL-ENTRY-SCRIPT: %(spec)r,%(group)r,%(name)r
+        __requires__ = %(spec)r
+        import re
+        import sys
+        from pkg_resources import load_entry_point
+
+        if __name__ == '__main__':
+            sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+            sys.exit(
+                load_entry_point(%(spec)r, %(group)r, %(name)r)()
+            )
+    """).lstrip()
+
+    command_spec_class = CommandSpec
+
+    @classmethod
+    def get_script_args(cls, dist, executable=None, wininst=False):
+        # for backward compatibility
+        warnings.warn("Use get_args", DeprecationWarning)
+        writer = (WindowsScriptWriter if wininst else ScriptWriter).best()
+        header = cls.get_script_header("", executable, wininst)
+        return writer.get_args(dist, header)
+
+    @classmethod
+    def get_script_header(cls, script_text, executable=None, wininst=False):
+        # for backward compatibility
+        warnings.warn("Use get_header", DeprecationWarning)
+        if wininst:
+            executable = "python.exe"
+        cmd = cls.command_spec_class.best().from_param(executable)
+        cmd.install_options(script_text)
+        return cmd.as_header()
+
+    @classmethod
+    def get_args(cls, dist, header=None):
+        """
+        Yield write_script() argument tuples for a distribution's
+        console_scripts and gui_scripts entry points.
+        """
+        if header is None:
+            header = cls.get_header()
+        spec = str(dist.as_requirement())
+        for type_ in 'console', 'gui':
+            group = type_ + '_scripts'
+            for name, ep in dist.get_entry_map(group).items():
+                cls._ensure_safe_name(name)
+                script_text = cls.template % locals()
+                args = cls._get_script_args(type_, name, header, script_text)
+                for res in args:
+                    yield res
+
+    @staticmethod
+    def _ensure_safe_name(name):
+        """
+        Prevent paths in *_scripts entry point names.
+        """
+        has_path_sep = re.search(r'[\\/]', name)
+        if has_path_sep:
+            raise ValueError("Path separators not allowed in script names")
+
+    @classmethod
+    def get_writer(cls, force_windows):
+        # for backward compatibility
+        warnings.warn("Use best", DeprecationWarning)
+        return WindowsScriptWriter.best() if force_windows else cls.best()
+
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter for this environment.
+        """
+        if sys.platform == 'win32' or (os.name == 'java' and os._name == 'nt'):
+            return WindowsScriptWriter.best()
+        else:
+            return cls
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        # Simply write the stub with no extension.
+        yield (name, header + script_text)
+
+    @classmethod
+    def get_header(cls, script_text="", executable=None):
+        """Create a #! line, getting options (if any) from script_text"""
+        cmd = cls.command_spec_class.best().from_param(executable)
+        cmd.install_options(script_text)
+        return cmd.as_header()
+
+
+class WindowsScriptWriter(ScriptWriter):
+    command_spec_class = WindowsCommandSpec
+
+    @classmethod
+    def get_writer(cls):
+        # for backward compatibility
+        warnings.warn("Use best", DeprecationWarning)
+        return cls.best()
+
+    @classmethod
+    def best(cls):
+        """
+        Select the best ScriptWriter suitable for Windows
+        """
+        writer_lookup = dict(
+            executable=WindowsExecutableLauncherWriter,
+            natural=cls,
+        )
+        # for compatibility, use the executable launcher by default
+        launcher = os.environ.get('SETUPTOOLS_LAUNCHER', 'executable')
+        return writer_lookup[launcher]
+
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        "For Windows, add a .py extension"
+        ext = dict(console='.pya', gui='.pyw')[type_]
+        if ext not in os.environ['PATHEXT'].lower().split(';'):
+            msg = (
+                "{ext} not listed in PATHEXT; scripts will not be "
+                "recognized as executables."
+            ).format(**locals())
+            warnings.warn(msg, UserWarning)
+        old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe']
+        old.remove(ext)
+        header = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield name + ext, header + script_text, 't', blockers
+
+    @classmethod
+    def _adjust_header(cls, type_, orig_header):
+        """
+        Make sure 'pythonw' is used for gui and and 'python' is used for
+        console (regardless of what sys.executable is).
+        """
+        pattern = 'pythonw.exe'
+        repl = 'python.exe'
+        if type_ == 'gui':
+            pattern, repl = repl, pattern
+        pattern_ob = re.compile(re.escape(pattern), re.IGNORECASE)
+        new_header = pattern_ob.sub(string=orig_header, repl=repl)
+        return new_header if cls._use_header(new_header) else orig_header
+
+    @staticmethod
+    def _use_header(new_header):
+        """
+        Should _adjust_header use the replaced header?
+
+        On non-windows systems, always use. On
+        Windows systems, only use the replaced header if it resolves
+        to an executable on the system.
+        """
+        clean_header = new_header[2:-1].strip('"')
+        return sys.platform != 'win32' or find_executable(clean_header)
+
+
+class WindowsExecutableLauncherWriter(WindowsScriptWriter):
+    @classmethod
+    def _get_script_args(cls, type_, name, header, script_text):
+        """
+        For Windows, add a .py extension and an .exe launcher
+        """
+        if type_ == 'gui':
+            launcher_type = 'gui'
+            ext = '-script.pyw'
+            old = ['.pyw']
+        else:
+            launcher_type = 'cli'
+            ext = '-script.py'
+            old = ['.py', '.pyc', '.pyo']
+        hdr = cls._adjust_header(type_, header)
+        blockers = [name + x for x in old]
+        yield (name + ext, hdr + script_text, 't', blockers)
+        yield (
+            name + '.exe', get_win_launcher(launcher_type),
+            'b'  # write in binary mode
+        )
+        if not is_64bit():
+            # install a manifest for the launcher to prevent Windows
+            # from detecting it as an installer (which it will for
+            #  launchers like easy_install.exe). Consider only
+            #  adding a manifest for launchers detected as installers.
+            #  See Distribute #143 for details.
+            m_name = name + '.exe.manifest'
+            yield (m_name, load_launcher_manifest(name), 't')
+
+
+# for backward-compatibility
+get_script_args = ScriptWriter.get_script_args
+get_script_header = ScriptWriter.get_script_header
+
+
+def get_win_launcher(type):
+    """
+    Load the Windows launcher (executable) suitable for launching a script.
+
+    `type` should be either 'cli' or 'gui'
+
+    Returns the executable as a byte string.
+    """
+    launcher_fn = '%s.exe' % type
+    if is_64bit():
+        launcher_fn = launcher_fn.replace(".", "-64.")
+    else:
+        launcher_fn = launcher_fn.replace(".", "-32.")
+    return resource_string('setuptools', launcher_fn)
+
+
+def load_launcher_manifest(name):
+    manifest = pkg_resources.resource_string(__name__, 'launcher manifest.xml')
+    if six.PY2:
+        return manifest % vars()
+    else:
+        return manifest.decode('utf-8') % vars()
+
+
+def rmtree(path, ignore_errors=False, onerror=auto_chmod):
+    return shutil.rmtree(path, ignore_errors, onerror)
+
+
+def current_umask():
+    tmp = os.umask(0o022)
+    os.umask(tmp)
+    return tmp
+
+
+def bootstrap():
+    # This function is called when setuptools*.egg is run using /bin/sh
+    import setuptools
+
+    argv0 = os.path.dirname(setuptools.__path__[0])
+    sys.argv[0] = argv0
+    sys.argv.append(argv0)
+    main()
+
+
+def main(argv=None, **kw):
+    from setuptools import setup
+    from setuptools.dist import Distribution
+
+    class DistributionWithoutHelpCommands(Distribution):
+        common_usage = ""
+
+        def _show_help(self, *args, **kw):
+            with _patch_usage():
+                Distribution._show_help(self, *args, **kw)
+
+    if argv is None:
+        argv = sys.argv[1:]
+
+    with _patch_usage():
+        setup(
+            script_args=['-q', 'easy_install', '-v'] + argv,
+            script_name=sys.argv[0] or 'easy_install',
+            distclass=DistributionWithoutHelpCommands,
+            **kw
+        )
+
+
+@contextlib.contextmanager
+def _patch_usage():
+    import distutils.core
+    USAGE = textwrap.dedent("""
+        usage: %(script)s [options] requirement_or_url ...
+           or: %(script)s --help
+        """).lstrip()
+
+    def gen_usage(script_name):
+        return USAGE % dict(
+            script=os.path.basename(script_name),
+        )
+
+    saved = distutils.core.gen_usage
+    distutils.core.gen_usage = gen_usage
+    try:
+        yield
+    finally:
+        distutils.core.gen_usage = saved
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/egg_info.py b/venv1/lib/python3.5/site-packages/setuptools/command/egg_info.py
new file mode 100644
index 0000000..103c5f2
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/egg_info.py
@@ -0,0 +1,699 @@
+"""setuptools.command.egg_info
+
+Create a distribution's .egg-info directory and contents"""
+
+from distutils.filelist import FileList as _FileList
+from distutils.errors import DistutilsInternalError
+from distutils.util import convert_path
+from distutils import log
+import distutils.errors
+import distutils.filelist
+import os
+import re
+import sys
+import io
+import warnings
+import time
+import collections
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map
+
+from setuptools import Command
+from setuptools.command.sdist import sdist
+from setuptools.command.sdist import walk_revctrl
+from setuptools.command.setopt import edit_config
+from setuptools.command import bdist_egg
+from pkg_resources import (
+    parse_requirements, safe_name, parse_version,
+    safe_version, yield_lines, EntryPoint, iter_entry_points, to_filename)
+import setuptools.unicode_utils as unicode_utils
+from setuptools.glob import glob
+
+from pkg_resources.extern import packaging
+
+
+def translate_pattern(glob):
+    """
+    Translate a file path glob like '*.txt' in to a regular expression.
+    This differs from fnmatch.translate which allows wildcards to match
+    directory separators. It also knows about '**/' which matches any number of
+    directories.
+    """
+    pat = ''
+
+    # This will split on '/' within [character classes]. This is deliberate.
+    chunks = glob.split(os.path.sep)
+
+    sep = re.escape(os.sep)
+    valid_char = '[^%s]' % (sep,)
+
+    for c, chunk in enumerate(chunks):
+        last_chunk = c == len(chunks) - 1
+
+        # Chunks that are a literal ** are globstars. They match anything.
+        if chunk == '**':
+            if last_chunk:
+                # Match anything if this is the last component
+                pat += '.*'
+            else:
+                # Match '(name/)*'
+                pat += '(?:%s+%s)*' % (valid_char, sep)
+            continue  # Break here as the whole path component has been handled
+
+        # Find any special characters in the remainder
+        i = 0
+        chunk_len = len(chunk)
+        while i < chunk_len:
+            char = chunk[i]
+            if char == '*':
+                # Match any number of name characters
+                pat += valid_char + '*'
+            elif char == '?':
+                # Match a name character
+                pat += valid_char
+            elif char == '[':
+                # Character class
+                inner_i = i + 1
+                # Skip initial !/] chars
+                if inner_i < chunk_len and chunk[inner_i] == '!':
+                    inner_i = inner_i + 1
+                if inner_i < chunk_len and chunk[inner_i] == ']':
+                    inner_i = inner_i + 1
+
+                # Loop till the closing ] is found
+                while inner_i < chunk_len and chunk[inner_i] != ']':
+                    inner_i = inner_i + 1
+
+                if inner_i >= chunk_len:
+                    # Got to the end of the string without finding a closing ]
+                    # Do not treat this as a matching group, but as a literal [
+                    pat += re.escape(char)
+                else:
+                    # Grab the insides of the [brackets]
+                    inner = chunk[i + 1:inner_i]
+                    char_class = ''
+
+                    # Class negation
+                    if inner[0] == '!':
+                        char_class = '^'
+                        inner = inner[1:]
+
+                    char_class += re.escape(inner)
+                    pat += '[%s]' % (char_class,)
+
+                    # Skip to the end ]
+                    i = inner_i
+            else:
+                pat += re.escape(char)
+            i += 1
+
+        # Join each chunk with the dir separator
+        if not last_chunk:
+            pat += sep
+
+    pat += r'\Z'
+    return re.compile(pat, flags=re.MULTILINE|re.DOTALL)
+
+
+class egg_info(Command):
+    description = "create a distribution's .egg-info directory"
+
+    user_options = [
+        ('egg-base=', 'e', "directory containing .egg-info directories"
+                           " (default: top of the source tree)"),
+        ('tag-date', 'd', "Add date stamp (e.g. 20050528) to version number"),
+        ('tag-build=', 'b', "Specify explicit tag to add to version number"),
+        ('no-date', 'D', "Don't include date stamp [default]"),
+    ]
+
+    boolean_options = ['tag-date']
+    negative_opt = {
+        'no-date': 'tag-date',
+    }
+
+    def initialize_options(self):
+        self.egg_name = None
+        self.egg_version = None
+        self.egg_base = None
+        self.egg_info = None
+        self.tag_build = None
+        self.tag_date = 0
+        self.broken_egg_info = False
+        self.vtags = None
+
+    ####################################
+    # allow the 'tag_svn_revision' to be detected and
+    # set, supporting sdists built on older Setuptools.
+    @property
+    def tag_svn_revision(self):
+        pass
+
+    @tag_svn_revision.setter
+    def tag_svn_revision(self, value):
+        pass
+    ####################################
+
+    def save_version_info(self, filename):
+        """
+        Materialize the value of date into the
+        build tag. Install build keys in a deterministic order
+        to avoid arbitrary reordering on subsequent builds.
+        """
+        egg_info = collections.OrderedDict()
+        # follow the order these keys would have been added
+        # when PYTHONHASHSEED=0
+        egg_info['tag_build'] = self.tags()
+        egg_info['tag_date'] = 0
+        edit_config(filename, dict(egg_info=egg_info))
+
+    def finalize_options(self):
+        self.egg_name = safe_name(self.distribution.get_name())
+        self.vtags = self.tags()
+        self.egg_version = self.tagged_version()
+
+        parsed_version = parse_version(self.egg_version)
+
+        try:
+            is_version = isinstance(parsed_version, packaging.version.Version)
+            spec = (
+                "%s==%s" if is_version else "%s===%s"
+            )
+            list(
+                parse_requirements(spec % (self.egg_name, self.egg_version))
+            )
+        except ValueError:
+            raise distutils.errors.DistutilsOptionError(
+                "Invalid distribution name or version syntax: %s-%s" %
+                (self.egg_name, self.egg_version)
+            )
+
+        if self.egg_base is None:
+            dirs = self.distribution.package_dir
+            self.egg_base = (dirs or {}).get('', os.curdir)
+
+        self.ensure_dirname('egg_base')
+        self.egg_info = to_filename(self.egg_name) + '.egg-info'
+        if self.egg_base != os.curdir:
+            self.egg_info = os.path.join(self.egg_base, self.egg_info)
+        if '-' in self.egg_name:
+            self.check_broken_egg_info()
+
+        # Set package version for the benefit of dumber commands
+        # (e.g. sdist, bdist_wininst, etc.)
+        #
+        self.distribution.metadata.version = self.egg_version
+
+        # If we bootstrapped around the lack of a PKG-INFO, as might be the
+        # case in a fresh checkout, make sure that any special tags get added
+        # to the version info
+        #
+        pd = self.distribution._patched_dist
+        if pd is not None and pd.key == self.egg_name.lower():
+            pd._version = self.egg_version
+            pd._parsed_version = parse_version(self.egg_version)
+            self.distribution._patched_dist = None
+
+    def write_or_delete_file(self, what, filename, data, force=False):
+        """Write `data` to `filename` or delete if empty
+
+        If `data` is non-empty, this routine is the same as ``write_file()``.
+        If `data` is empty but not ``None``, this is the same as calling
+        ``delete_file(filename)`.  If `data` is ``None``, then this is a no-op
+        unless `filename` exists, in which case a warning is issued about the
+        orphaned file (if `force` is false), or deleted (if `force` is true).
+        """
+        if data:
+            self.write_file(what, filename, data)
+        elif os.path.exists(filename):
+            if data is None and not force:
+                log.warn(
+                    "%s not set in setup(), but %s exists", what, filename
+                )
+                return
+            else:
+                self.delete_file(filename)
+
+    def write_file(self, what, filename, data):
+        """Write `data` to `filename` (if not a dry run) after announcing it
+
+        `what` is used in a log message to identify what is being written
+        to the file.
+        """
+        log.info("writing %s to %s", what, filename)
+        if six.PY3:
+            data = data.encode("utf-8")
+        if not self.dry_run:
+            f = open(filename, 'wb')
+            f.write(data)
+            f.close()
+
+    def delete_file(self, filename):
+        """Delete `filename` (if not a dry run) after announcing it"""
+        log.info("deleting %s", filename)
+        if not self.dry_run:
+            os.unlink(filename)
+
+    def tagged_version(self):
+        version = self.distribution.get_version()
+        # egg_info may be called more than once for a distribution,
+        # in which case the version string already contains all tags.
+        if self.vtags and version.endswith(self.vtags):
+            return safe_version(version)
+        return safe_version(version + self.vtags)
+
+    def run(self):
+        self.mkpath(self.egg_info)
+        installer = self.distribution.fetch_build_egg
+        for ep in iter_entry_points('egg_info.writers'):
+            ep.require(installer=installer)
+            writer = ep.resolve()
+            writer(self, ep.name, os.path.join(self.egg_info, ep.name))
+
+        # Get rid of native_libs.txt if it was put there by older bdist_egg
+        nl = os.path.join(self.egg_info, "native_libs.txt")
+        if os.path.exists(nl):
+            self.delete_file(nl)
+
+        self.find_sources()
+
+    def tags(self):
+        version = ''
+        if self.tag_build:
+            version += self.tag_build
+        if self.tag_date:
+            version += time.strftime("-%Y%m%d")
+        return version
+
+    def find_sources(self):
+        """Generate SOURCES.txt manifest file"""
+        manifest_filename = os.path.join(self.egg_info, "SOURCES.txt")
+        mm = manifest_maker(self.distribution)
+        mm.manifest = manifest_filename
+        mm.run()
+        self.filelist = mm.filelist
+
+    def check_broken_egg_info(self):
+        bei = self.egg_name + '.egg-info'
+        if self.egg_base != os.curdir:
+            bei = os.path.join(self.egg_base, bei)
+        if os.path.exists(bei):
+            log.warn(
+                "-" * 78 + '\n'
+                "Note: Your current .egg-info directory has a '-' in its name;"
+                '\nthis will not work correctly with "setup.py develop".\n\n'
+                'Please rename %s to %s to correct this problem.\n' + '-' * 78,
+                bei, self.egg_info
+            )
+            self.broken_egg_info = self.egg_info
+            self.egg_info = bei  # make it work for now
+
+
+class FileList(_FileList):
+    # Implementations of the various MANIFEST.in commands
+
+    def process_template_line(self, line):
+        # Parse the line: split it up, make sure the right number of words
+        # is there, and return the relevant words.  'action' is always
+        # defined: it's the first word of the line.  Which of the other
+        # three are defined depends on the action; it'll be either
+        # patterns, (dir and patterns), or (dir_pattern).
+        (action, patterns, dir, dir_pattern) = self._parse_template_line(line)
+
+        # OK, now we know that the action is valid and we have the
+        # right number of words on the line for that action -- so we
+        # can proceed with minimal error-checking.
+        if action == 'include':
+            self.debug_print("include " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.include(pattern):
+                    log.warn("warning: no files found matching '%s'", pattern)
+
+        elif action == 'exclude':
+            self.debug_print("exclude " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.exclude(pattern):
+                    log.warn(("warning: no previously-included files "
+                              "found matching '%s'"), pattern)
+
+        elif action == 'global-include':
+            self.debug_print("global-include " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.global_include(pattern):
+                    log.warn(("warning: no files found matching '%s' "
+                              "anywhere in distribution"), pattern)
+
+        elif action == 'global-exclude':
+            self.debug_print("global-exclude " + ' '.join(patterns))
+            for pattern in patterns:
+                if not self.global_exclude(pattern):
+                    log.warn(("warning: no previously-included files matching "
+                              "'%s' found anywhere in distribution"),
+                             pattern)
+
+        elif action == 'recursive-include':
+            self.debug_print("recursive-include %s %s" %
+                             (dir, ' '.join(patterns)))
+            for pattern in patterns:
+                if not self.recursive_include(dir, pattern):
+                    log.warn(("warning: no files found matching '%s' "
+                              "under directory '%s'"),
+                             pattern, dir)
+
+        elif action == 'recursive-exclude':
+            self.debug_print("recursive-exclude %s %s" %
+                             (dir, ' '.join(patterns)))
+            for pattern in patterns:
+                if not self.recursive_exclude(dir, pattern):
+                    log.warn(("warning: no previously-included files matching "
+                              "'%s' found under directory '%s'"),
+                             pattern, dir)
+
+        elif action == 'graft':
+            self.debug_print("graft " + dir_pattern)
+            if not self.graft(dir_pattern):
+                log.warn("warning: no directories found matching '%s'",
+                         dir_pattern)
+
+        elif action == 'prune':
+            self.debug_print("prune " + dir_pattern)
+            if not self.prune(dir_pattern):
+                log.warn(("no previously-included directories found "
+                          "matching '%s'"), dir_pattern)
+
+        else:
+            raise DistutilsInternalError(
+                "this cannot happen: invalid action '%s'" % action)
+
+    def _remove_files(self, predicate):
+        """
+        Remove all files from the file list that match the predicate.
+        Return True if any matching files were removed
+        """
+        found = False
+        for i in range(len(self.files) - 1, -1, -1):
+            if predicate(self.files[i]):
+                self.debug_print(" removing " + self.files[i])
+                del self.files[i]
+                found = True
+        return found
+
+    def include(self, pattern):
+        """Include files that match 'pattern'."""
+        found = [f for f in glob(pattern) if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def exclude(self, pattern):
+        """Exclude files that match 'pattern'."""
+        match = translate_pattern(pattern)
+        return self._remove_files(match.match)
+
+    def recursive_include(self, dir, pattern):
+        """
+        Include all files anywhere in 'dir/' that match the pattern.
+        """
+        full_pattern = os.path.join(dir, '**', pattern)
+        found = [f for f in glob(full_pattern, recursive=True)
+                 if not os.path.isdir(f)]
+        self.extend(found)
+        return bool(found)
+
+    def recursive_exclude(self, dir, pattern):
+        """
+        Exclude any file anywhere in 'dir/' that match the pattern.
+        """
+        match = translate_pattern(os.path.join(dir, '**', pattern))
+        return self._remove_files(match.match)
+
+    def graft(self, dir):
+        """Include all files from 'dir/'."""
+        found = [
+            item
+            for match_dir in glob(dir)
+            for item in distutils.filelist.findall(match_dir)
+        ]
+        self.extend(found)
+        return bool(found)
+
+    def prune(self, dir):
+        """Filter out files from 'dir/'."""
+        match = translate_pattern(os.path.join(dir, '**'))
+        return self._remove_files(match.match)
+
+    def global_include(self, pattern):
+        """
+        Include all files anywhere in the current directory that match the
+        pattern. This is very inefficient on large file trees.
+        """
+        if self.allfiles is None:
+            self.findall()
+        match = translate_pattern(os.path.join('**', pattern))
+        found = [f for f in self.allfiles if match.match(f)]
+        self.extend(found)
+        return bool(found)
+
+    def global_exclude(self, pattern):
+        """
+        Exclude all files anywhere that match the pattern.
+        """
+        match = translate_pattern(os.path.join('**', pattern))
+        return self._remove_files(match.match)
+
+    def append(self, item):
+        if item.endswith('\r'):  # Fix older sdists built on Windows
+            item = item[:-1]
+        path = convert_path(item)
+
+        if self._safe_path(path):
+            self.files.append(path)
+
+    def extend(self, paths):
+        self.files.extend(filter(self._safe_path, paths))
+
+    def _repair(self):
+        """
+        Replace self.files with only safe paths
+
+        Because some owners of FileList manipulate the underlying
+        ``files`` attribute directly, this method must be called to
+        repair those paths.
+        """
+        self.files = list(filter(self._safe_path, self.files))
+
+    def _safe_path(self, path):
+        enc_warn = "'%s' not %s encodable -- skipping"
+
+        # To avoid accidental trans-codings errors, first to unicode
+        u_path = unicode_utils.filesys_decode(path)
+        if u_path is None:
+            log.warn("'%s' in unexpected encoding -- skipping" % path)
+            return False
+
+        # Must ensure utf-8 encodability
+        utf8_path = unicode_utils.try_encode(u_path, "utf-8")
+        if utf8_path is None:
+            log.warn(enc_warn, path, 'utf-8')
+            return False
+
+        try:
+            # accept is either way checks out
+            if os.path.exists(u_path) or os.path.exists(utf8_path):
+                return True
+        # this will catch any encode errors decoding u_path
+        except UnicodeEncodeError:
+            log.warn(enc_warn, path, sys.getfilesystemencoding())
+
+
+class manifest_maker(sdist):
+    template = "MANIFEST.in"
+
+    def initialize_options(self):
+        self.use_defaults = 1
+        self.prune = 1
+        self.manifest_only = 1
+        self.force_manifest = 1
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        self.filelist = FileList()
+        if not os.path.exists(self.manifest):
+            self.write_manifest()  # it must exist so it'll get in the list
+        self.add_defaults()
+        if os.path.exists(self.template):
+            self.read_template()
+        self.prune_file_list()
+        self.filelist.sort()
+        self.filelist.remove_duplicates()
+        self.write_manifest()
+
+    def _manifest_normalize(self, path):
+        path = unicode_utils.filesys_decode(path)
+        return path.replace(os.sep, '/')
+
+    def write_manifest(self):
+        """
+        Write the file list in 'self.filelist' to the manifest file
+        named by 'self.manifest'.
+        """
+        self.filelist._repair()
+
+        # Now _repairs should encodability, but not unicode
+        files = [self._manifest_normalize(f) for f in self.filelist.files]
+        msg = "writing manifest file '%s'" % self.manifest
+        self.execute(write_file, (self.manifest, files), msg)
+
+    def warn(self, msg):
+        if not self._should_suppress_warning(msg):
+            sdist.warn(self, msg)
+
+    @staticmethod
+    def _should_suppress_warning(msg):
+        """
+        suppress missing-file warnings from sdist
+        """
+        return re.match(r"standard file .*not found", msg)
+
+    def add_defaults(self):
+        sdist.add_defaults(self)
+        self.filelist.append(self.template)
+        self.filelist.append(self.manifest)
+        rcfiles = list(walk_revctrl())
+        if rcfiles:
+            self.filelist.extend(rcfiles)
+        elif os.path.exists(self.manifest):
+            self.read_manifest()
+        ei_cmd = self.get_finalized_command('egg_info')
+        self.filelist.graft(ei_cmd.egg_info)
+
+    def prune_file_list(self):
+        build = self.get_finalized_command('build')
+        base_dir = self.distribution.get_fullname()
+        self.filelist.prune(build.build_base)
+        self.filelist.prune(base_dir)
+        sep = re.escape(os.sep)
+        self.filelist.exclude_pattern(r'(^|' + sep + r')(RCS|CVS|\.svn)' + sep,
+                                      is_regex=1)
+
+
+def write_file(filename, contents):
+    """Create a file with the specified name and write 'contents' (a
+    sequence of strings without line terminators) to it.
+    """
+    contents = "\n".join(contents)
+
+    # assuming the contents has been vetted for utf-8 encoding
+    contents = contents.encode("utf-8")
+
+    with open(filename, "wb") as f:  # always write POSIX-style manifest
+        f.write(contents)
+
+
+def write_pkg_info(cmd, basename, filename):
+    log.info("writing %s", filename)
+    if not cmd.dry_run:
+        metadata = cmd.distribution.metadata
+        metadata.version, oldver = cmd.egg_version, metadata.version
+        metadata.name, oldname = cmd.egg_name, metadata.name
+        metadata.long_description_content_type = getattr(
+            cmd.distribution,
+            'long_description_content_type'
+        )
+        try:
+            # write unescaped data to PKG-INFO, so older pkg_resources
+            # can still parse it
+            metadata.write_pkg_info(cmd.egg_info)
+        finally:
+            metadata.name, metadata.version = oldname, oldver
+
+        safe = getattr(cmd.distribution, 'zip_safe', None)
+
+        bdist_egg.write_safety_flag(cmd.egg_info, safe)
+
+
+def warn_depends_obsolete(cmd, basename, filename):
+    if os.path.exists(filename):
+        log.warn(
+            "WARNING: 'depends.txt' is not used by setuptools 0.6!\n"
+            "Use the install_requires/extras_require setup() args instead."
+        )
+
+
+def _write_requirements(stream, reqs):
+    lines = yield_lines(reqs or ())
+    append_cr = lambda line: line + '\n'
+    lines = map(append_cr, lines)
+    stream.writelines(lines)
+
+
+def write_requirements(cmd, basename, filename):
+    dist = cmd.distribution
+    data = six.StringIO()
+    _write_requirements(data, dist.install_requires)
+    extras_require = dist.extras_require or {}
+    for extra in sorted(extras_require):
+        data.write('\n[{extra}]\n'.format(**vars()))
+        _write_requirements(data, extras_require[extra])
+    cmd.write_or_delete_file("requirements", filename, data.getvalue())
+
+
+def write_setup_requirements(cmd, basename, filename):
+    data = io.StringIO()
+    _write_requirements(data, cmd.distribution.setup_requires)
+    cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())
+
+
+def write_toplevel_names(cmd, basename, filename):
+    pkgs = dict.fromkeys(
+        [
+            k.split('.', 1)[0]
+            for k in cmd.distribution.iter_distribution_names()
+        ]
+    )
+    cmd.write_file("top-level names", filename, '\n'.join(sorted(pkgs)) + '\n')
+
+
+def overwrite_arg(cmd, basename, filename):
+    write_arg(cmd, basename, filename, True)
+
+
+def write_arg(cmd, basename, filename, force=False):
+    argname = os.path.splitext(basename)[0]
+    value = getattr(cmd.distribution, argname, None)
+    if value is not None:
+        value = '\n'.join(value) + '\n'
+    cmd.write_or_delete_file(argname, filename, value, force)
+
+
+def write_entries(cmd, basename, filename):
+    ep = cmd.distribution.entry_points
+
+    if isinstance(ep, six.string_types) or ep is None:
+        data = ep
+    elif ep is not None:
+        data = []
+        for section, contents in sorted(ep.items()):
+            if not isinstance(contents, six.string_types):
+                contents = EntryPoint.parse_group(section, contents)
+                contents = '\n'.join(sorted(map(str, contents.values())))
+            data.append('[%s]\n%s\n\n' % (section, contents))
+        data = ''.join(data)
+
+    cmd.write_or_delete_file('entry points', filename, data, True)
+
+
+def get_pkg_info_revision():
+    """
+    Get a -r### off of PKG-INFO Version in case this is an sdist of
+    a subversion revision.
+    """
+    warnings.warn("get_pkg_info_revision is deprecated.", DeprecationWarning)
+    if os.path.exists('PKG-INFO'):
+        with io.open('PKG-INFO') as f:
+            for line in f:
+                match = re.match(r"Version:.*-r(\d+)\s*$", line)
+                if match:
+                    return int(match.group(1))
+    return 0
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/install.py b/venv1/lib/python3.5/site-packages/setuptools/command/install.py
new file mode 100644
index 0000000..31a5ddb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/install.py
@@ -0,0 +1,125 @@
+from distutils.errors import DistutilsArgError
+import inspect
+import glob
+import warnings
+import platform
+import distutils.command.install as orig
+
+import setuptools
+
+# Prior to numpy 1.9, NumPy relies on the '_install' name, so provide it for
+# now. See https://github.com/pypa/setuptools/issues/199/
+_install = orig.install
+
+
+class install(orig.install):
+    """Use easy_install to install the package, w/dependencies"""
+
+    user_options = orig.install.user_options + [
+        ('old-and-unmanageable', None, "Try not to use this!"),
+        ('single-version-externally-managed', None,
+         "used by system package builders to create 'flat' eggs"),
+    ]
+    boolean_options = orig.install.boolean_options + [
+        'old-and-unmanageable', 'single-version-externally-managed',
+    ]
+    new_commands = [
+        ('install_egg_info', lambda self: True),
+        ('install_scripts', lambda self: True),
+    ]
+    _nc = dict(new_commands)
+
+    def initialize_options(self):
+        orig.install.initialize_options(self)
+        self.old_and_unmanageable = None
+        self.single_version_externally_managed = None
+
+    def finalize_options(self):
+        orig.install.finalize_options(self)
+        if self.root:
+            self.single_version_externally_managed = True
+        elif self.single_version_externally_managed:
+            if not self.root and not self.record:
+                raise DistutilsArgError(
+                    "You must specify --record or --root when building system"
+                    " packages"
+                )
+
+    def handle_extra_path(self):
+        if self.root or self.single_version_externally_managed:
+            # explicit backward-compatibility mode, allow extra_path to work
+            return orig.install.handle_extra_path(self)
+
+        # Ignore extra_path when installing an egg (or being run by another
+        # command without --root or --single-version-externally-managed
+        self.path_file = None
+        self.extra_dirs = ''
+
+    def run(self):
+        # Explicit request for old-style install?  Just do it
+        if self.old_and_unmanageable or self.single_version_externally_managed:
+            return orig.install.run(self)
+
+        if not self._called_from_setup(inspect.currentframe()):
+            # Run in backward-compatibility mode to support bdist_* commands.
+            orig.install.run(self)
+        else:
+            self.do_egg_install()
+
+    @staticmethod
+    def _called_from_setup(run_frame):
+        """
+        Attempt to detect whether run() was called from setup() or by another
+        command.  If called by setup(), the parent caller will be the
+        'run_command' method in 'distutils.dist', and *its* caller will be
+        the 'run_commands' method.  If called any other way, the
+        immediate caller *might* be 'run_command', but it won't have been
+        called by 'run_commands'. Return True in that case or if a call stack
+        is unavailable. Return False otherwise.
+        """
+        if run_frame is None:
+            msg = "Call stack not available. bdist_* commands may fail."
+            warnings.warn(msg)
+            if platform.python_implementation() == 'IronPython':
+                msg = "For best results, pass -X:Frames to enable call stack."
+                warnings.warn(msg)
+            return True
+        res = inspect.getouterframes(run_frame)[2]
+        caller, = res[:1]
+        info = inspect.getframeinfo(caller)
+        caller_module = caller.f_globals.get('__name__', '')
+        return (
+            caller_module == 'distutils.dist'
+            and info.function == 'run_commands'
+        )
+
+    def do_egg_install(self):
+
+        easy_install = self.distribution.get_command_class('easy_install')
+
+        cmd = easy_install(
+            self.distribution, args="x", root=self.root, record=self.record,
+        )
+        cmd.ensure_finalized()  # finalize before bdist_egg munges install cmd
+        cmd.always_copy_from = '.'  # make sure local-dir eggs get installed
+
+        # pick up setup-dir .egg files only: no .egg-info
+        cmd.package_index.scan(glob.glob('*.egg'))
+
+        self.run_command('bdist_egg')
+        args = [self.distribution.get_command_obj('bdist_egg').egg_output]
+
+        if setuptools.bootstrap_install_from:
+            # Bootstrap self-installation of setuptools
+            args.insert(0, setuptools.bootstrap_install_from)
+
+        cmd.args = args
+        cmd.run()
+        setuptools.bootstrap_install_from = None
+
+
+# XXX Python 3.1 doesn't see _nc if this is inside the class
+install.sub_commands = (
+    [cmd for cmd in orig.install.sub_commands if cmd[0] not in install._nc] +
+    install.new_commands
+)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/install_egg_info.py b/venv1/lib/python3.5/site-packages/setuptools/command/install_egg_info.py
new file mode 100644
index 0000000..edc4718
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/install_egg_info.py
@@ -0,0 +1,62 @@
+from distutils import log, dir_util
+import os
+
+from setuptools import Command
+from setuptools import namespaces
+from setuptools.archive_util import unpack_archive
+import pkg_resources
+
+
+class install_egg_info(namespaces.Installer, Command):
+    """Install an .egg-info directory for the package"""
+
+    description = "Install an .egg-info directory for the package"
+
+    user_options = [
+        ('install-dir=', 'd', "directory to install to"),
+    ]
+
+    def initialize_options(self):
+        self.install_dir = None
+
+    def finalize_options(self):
+        self.set_undefined_options('install_lib',
+                                   ('install_dir', 'install_dir'))
+        ei_cmd = self.get_finalized_command("egg_info")
+        basename = pkg_resources.Distribution(
+            None, None, ei_cmd.egg_name, ei_cmd.egg_version
+        ).egg_name() + '.egg-info'
+        self.source = ei_cmd.egg_info
+        self.target = os.path.join(self.install_dir, basename)
+        self.outputs = []
+
+    def run(self):
+        self.run_command('egg_info')
+        if os.path.isdir(self.target) and not os.path.islink(self.target):
+            dir_util.remove_tree(self.target, dry_run=self.dry_run)
+        elif os.path.exists(self.target):
+            self.execute(os.unlink, (self.target,), "Removing " + self.target)
+        if not self.dry_run:
+            pkg_resources.ensure_directory(self.target)
+        self.execute(
+            self.copytree, (), "Copying %s to %s" % (self.source, self.target)
+        )
+        self.install_namespaces()
+
+    def get_outputs(self):
+        return self.outputs
+
+    def copytree(self):
+        # Copy the .egg-info tree to site-packages
+        def skimmer(src, dst):
+            # filter out source-control directories; note that 'src' is always
+            # a '/'-separated path, regardless of platform.  'dst' is a
+            # platform-specific path.
+            for skip in '.svn/', 'CVS/':
+                if src.startswith(skip) or '/' + skip in src:
+                    return None
+            self.outputs.append(dst)
+            log.debug("Copying %s to %s", src, dst)
+            return dst
+
+        unpack_archive(self.source, self.target, skimmer)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/install_lib.py b/venv1/lib/python3.5/site-packages/setuptools/command/install_lib.py
new file mode 100644
index 0000000..2b31c3e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/install_lib.py
@@ -0,0 +1,121 @@
+import os
+import imp
+from itertools import product, starmap
+import distutils.command.install_lib as orig
+
+
+class install_lib(orig.install_lib):
+    """Don't add compiled flags to filenames of non-Python files"""
+
+    def run(self):
+        self.build()
+        outfiles = self.install()
+        if outfiles is not None:
+            # always compile, in case we have any extension stubs to deal with
+            self.byte_compile(outfiles)
+
+    def get_exclusions(self):
+        """
+        Return a collections.Sized collections.Container of paths to be
+        excluded for single_version_externally_managed installations.
+        """
+        all_packages = (
+            pkg
+            for ns_pkg in self._get_SVEM_NSPs()
+            for pkg in self._all_packages(ns_pkg)
+        )
+
+        excl_specs = product(all_packages, self._gen_exclusion_paths())
+        return set(starmap(self._exclude_pkg_path, excl_specs))
+
+    def _exclude_pkg_path(self, pkg, exclusion_path):
+        """
+        Given a package name and exclusion path within that package,
+        compute the full exclusion path.
+        """
+        parts = pkg.split('.') + [exclusion_path]
+        return os.path.join(self.install_dir, *parts)
+
+    @staticmethod
+    def _all_packages(pkg_name):
+        """
+        >>> list(install_lib._all_packages('foo.bar.baz'))
+        ['foo.bar.baz', 'foo.bar', 'foo']
+        """
+        while pkg_name:
+            yield pkg_name
+            pkg_name, sep, child = pkg_name.rpartition('.')
+
+    def _get_SVEM_NSPs(self):
+        """
+        Get namespace packages (list) but only for
+        single_version_externally_managed installations and empty otherwise.
+        """
+        # TODO: is it necessary to short-circuit here? i.e. what's the cost
+        # if get_finalized_command is called even when namespace_packages is
+        # False?
+        if not self.distribution.namespace_packages:
+            return []
+
+        install_cmd = self.get_finalized_command('install')
+        svem = install_cmd.single_version_externally_managed
+
+        return self.distribution.namespace_packages if svem else []
+
+    @staticmethod
+    def _gen_exclusion_paths():
+        """
+        Generate file paths to be excluded for namespace packages (bytecode
+        cache files).
+        """
+        # always exclude the package module itself
+        yield '__init__.py'
+
+        yield '__init__.pyc'
+        yield '__init__.pyo'
+
+        if not hasattr(imp, 'get_tag'):
+            return
+
+        base = os.path.join('__pycache__', '__init__.' + imp.get_tag())
+        yield base + '.pyc'
+        yield base + '.pyo'
+        yield base + '.opt-1.pyc'
+        yield base + '.opt-2.pyc'
+
+    def copy_tree(
+            self, infile, outfile,
+            preserve_mode=1, preserve_times=1, preserve_symlinks=0, level=1
+    ):
+        assert preserve_mode and preserve_times and not preserve_symlinks
+        exclude = self.get_exclusions()
+
+        if not exclude:
+            return orig.install_lib.copy_tree(self, infile, outfile)
+
+        # Exclude namespace package __init__.py* files from the output
+
+        from setuptools.archive_util import unpack_directory
+        from distutils import log
+
+        outfiles = []
+
+        def pf(src, dst):
+            if dst in exclude:
+                log.warn("Skipping installation of %s (namespace package)",
+                         dst)
+                return False
+
+            log.info("copying %s -> %s", src, os.path.dirname(dst))
+            outfiles.append(dst)
+            return dst
+
+        unpack_directory(infile, outfile, pf)
+        return outfiles
+
+    def get_outputs(self):
+        outputs = orig.install_lib.get_outputs(self)
+        exclude = self.get_exclusions()
+        if exclude:
+            return [f for f in outputs if f not in exclude]
+        return outputs
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/install_scripts.py b/venv1/lib/python3.5/site-packages/setuptools/command/install_scripts.py
new file mode 100644
index 0000000..1623427
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/install_scripts.py
@@ -0,0 +1,65 @@
+from distutils import log
+import distutils.command.install_scripts as orig
+import os
+import sys
+
+from pkg_resources import Distribution, PathMetadata, ensure_directory
+
+
+class install_scripts(orig.install_scripts):
+    """Do normal script install, plus any egg_info wrapper scripts"""
+
+    def initialize_options(self):
+        orig.install_scripts.initialize_options(self)
+        self.no_ep = False
+
+    def run(self):
+        import setuptools.command.easy_install as ei
+
+        self.run_command("egg_info")
+        if self.distribution.scripts:
+            orig.install_scripts.run(self)  # run first to set up self.outfiles
+        else:
+            self.outfiles = []
+        if self.no_ep:
+            # don't install entry point scripts into .egg file!
+            return
+
+        ei_cmd = self.get_finalized_command("egg_info")
+        dist = Distribution(
+            ei_cmd.egg_base, PathMetadata(ei_cmd.egg_base, ei_cmd.egg_info),
+            ei_cmd.egg_name, ei_cmd.egg_version,
+        )
+        bs_cmd = self.get_finalized_command('build_scripts')
+        exec_param = getattr(bs_cmd, 'executable', None)
+        bw_cmd = self.get_finalized_command("bdist_wininst")
+        is_wininst = getattr(bw_cmd, '_is_running', False)
+        writer = ei.ScriptWriter
+        if is_wininst:
+            exec_param = "python.exe"
+            writer = ei.WindowsScriptWriter
+        if exec_param == sys.executable:
+            # In case the path to the Python executable contains a space, wrap
+            # it so it's not split up.
+            exec_param = [exec_param]
+        # resolve the writer to the environment
+        writer = writer.best()
+        cmd = writer.command_spec_class.best().from_param(exec_param)
+        for args in writer.get_args(dist, cmd.as_header()):
+            self.write_script(*args)
+
+    def write_script(self, script_name, contents, mode="t", *ignored):
+        """Write an executable file to the scripts directory"""
+        from setuptools.command.easy_install import chmod, current_umask
+
+        log.info("Installing %s script to %s", script_name, self.install_dir)
+        target = os.path.join(self.install_dir, script_name)
+        self.outfiles.append(target)
+
+        mask = current_umask()
+        if not self.dry_run:
+            ensure_directory(target)
+            f = open(target, "w" + mode)
+            f.write(contents)
+            f.close()
+            chmod(target, 0o777 - mask)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml b/venv1/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml
new file mode 100644
index 0000000..5972a96
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/launcher manifest.xml	
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+    <assemblyIdentity version="1.0.0.0"
+                      processorArchitecture="X86"
+                      name="%(name)s"
+                      type="win32"/>
+    
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+        <security>
+            <requestedPrivileges>
+                <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
+            </requestedPrivileges>
+        </security>
+    </trustInfo>
+</assembly>
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/py36compat.py b/venv1/lib/python3.5/site-packages/setuptools/command/py36compat.py
new file mode 100644
index 0000000..61063e7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/py36compat.py
@@ -0,0 +1,136 @@
+import os
+from glob import glob
+from distutils.util import convert_path
+from distutils.command import sdist
+
+from setuptools.extern.six.moves import filter
+
+
+class sdist_add_defaults:
+    """
+    Mix-in providing forward-compatibility for functionality as found in
+    distutils on Python 3.7.
+
+    Do not edit the code in this class except to update functionality
+    as implemented in distutils. Instead, override in the subclass.
+    """
+
+    def add_defaults(self):
+        """Add all the default files to self.filelist:
+          - README or README.txt
+          - setup.py
+          - test/test*.py
+          - all pure Python modules mentioned in setup script
+          - all files pointed by package_data (build_py)
+          - all files defined in data_files.
+          - all files defined as scripts.
+          - all C sources listed as part of extensions or C libraries
+            in the setup script (doesn't catch C headers!)
+        Warns if (README or README.txt) or setup.py are missing; everything
+        else is optional.
+        """
+        self._add_defaults_standards()
+        self._add_defaults_optional()
+        self._add_defaults_python()
+        self._add_defaults_data_files()
+        self._add_defaults_ext()
+        self._add_defaults_c_libs()
+        self._add_defaults_scripts()
+
+    @staticmethod
+    def _cs_path_exists(fspath):
+        """
+        Case-sensitive path existence check
+
+        >>> sdist_add_defaults._cs_path_exists(__file__)
+        True
+        >>> sdist_add_defaults._cs_path_exists(__file__.upper())
+        False
+        """
+        if not os.path.exists(fspath):
+            return False
+        # make absolute so we always have a directory
+        abspath = os.path.abspath(fspath)
+        directory, filename = os.path.split(abspath)
+        return filename in os.listdir(directory)
+
+    def _add_defaults_standards(self):
+        standards = [self.READMES, self.distribution.script_name]
+        for fn in standards:
+            if isinstance(fn, tuple):
+                alts = fn
+                got_it = False
+                for fn in alts:
+                    if self._cs_path_exists(fn):
+                        got_it = True
+                        self.filelist.append(fn)
+                        break
+
+                if not got_it:
+                    self.warn("standard file not found: should have one of " +
+                              ', '.join(alts))
+            else:
+                if self._cs_path_exists(fn):
+                    self.filelist.append(fn)
+                else:
+                    self.warn("standard file '%s' not found" % fn)
+
+    def _add_defaults_optional(self):
+        optional = ['test/test*.py', 'setup.cfg']
+        for pattern in optional:
+            files = filter(os.path.isfile, glob(pattern))
+            self.filelist.extend(files)
+
+    def _add_defaults_python(self):
+        # build_py is used to get:
+        #  - python modules
+        #  - files defined in package_data
+        build_py = self.get_finalized_command('build_py')
+
+        # getting python files
+        if self.distribution.has_pure_modules():
+            self.filelist.extend(build_py.get_source_files())
+
+        # getting package_data files
+        # (computed in build_py.data_files by build_py.finalize_options)
+        for pkg, src_dir, build_dir, filenames in build_py.data_files:
+            for filename in filenames:
+                self.filelist.append(os.path.join(src_dir, filename))
+
+    def _add_defaults_data_files(self):
+        # getting distribution.data_files
+        if self.distribution.has_data_files():
+            for item in self.distribution.data_files:
+                if isinstance(item, str):
+                    # plain file
+                    item = convert_path(item)
+                    if os.path.isfile(item):
+                        self.filelist.append(item)
+                else:
+                    # a (dirname, filenames) tuple
+                    dirname, filenames = item
+                    for f in filenames:
+                        f = convert_path(f)
+                        if os.path.isfile(f):
+                            self.filelist.append(f)
+
+    def _add_defaults_ext(self):
+        if self.distribution.has_ext_modules():
+            build_ext = self.get_finalized_command('build_ext')
+            self.filelist.extend(build_ext.get_source_files())
+
+    def _add_defaults_c_libs(self):
+        if self.distribution.has_c_libraries():
+            build_clib = self.get_finalized_command('build_clib')
+            self.filelist.extend(build_clib.get_source_files())
+
+    def _add_defaults_scripts(self):
+        if self.distribution.has_scripts():
+            build_scripts = self.get_finalized_command('build_scripts')
+            self.filelist.extend(build_scripts.get_source_files())
+
+
+if hasattr(sdist.sdist, '_add_defaults_standards'):
+    # disable the functionality already available upstream
+    class sdist_add_defaults:
+        pass
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/register.py b/venv1/lib/python3.5/site-packages/setuptools/command/register.py
new file mode 100644
index 0000000..8d6336a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/register.py
@@ -0,0 +1,10 @@
+import distutils.command.register as orig
+
+
+class register(orig.register):
+    __doc__ = orig.register.__doc__
+
+    def run(self):
+        # Make sure that we are using valid current name/version info
+        self.run_command('egg_info')
+        orig.register.run(self)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/rotate.py b/venv1/lib/python3.5/site-packages/setuptools/command/rotate.py
new file mode 100644
index 0000000..b89353f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/rotate.py
@@ -0,0 +1,66 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import os
+import shutil
+
+from setuptools.extern import six
+
+from setuptools import Command
+
+
+class rotate(Command):
+    """Delete older distributions"""
+
+    description = "delete older distributions, keeping N newest files"
+    user_options = [
+        ('match=', 'm', "patterns to match (required)"),
+        ('dist-dir=', 'd', "directory where the distributions are"),
+        ('keep=', 'k', "number of matching distributions to keep"),
+    ]
+
+    boolean_options = []
+
+    def initialize_options(self):
+        self.match = None
+        self.dist_dir = None
+        self.keep = None
+
+    def finalize_options(self):
+        if self.match is None:
+            raise DistutilsOptionError(
+                "Must specify one or more (comma-separated) match patterns "
+                "(e.g. '.zip' or '.egg')"
+            )
+        if self.keep is None:
+            raise DistutilsOptionError("Must specify number of files to keep")
+        try:
+            self.keep = int(self.keep)
+        except ValueError:
+            raise DistutilsOptionError("--keep must be an integer")
+        if isinstance(self.match, six.string_types):
+            self.match = [
+                convert_path(p.strip()) for p in self.match.split(',')
+            ]
+        self.set_undefined_options('bdist', ('dist_dir', 'dist_dir'))
+
+    def run(self):
+        self.run_command("egg_info")
+        from glob import glob
+
+        for pattern in self.match:
+            pattern = self.distribution.get_name() + '*' + pattern
+            files = glob(os.path.join(self.dist_dir, pattern))
+            files = [(os.path.getmtime(f), f) for f in files]
+            files.sort()
+            files.reverse()
+
+            log.info("%d file(s) matching %s", len(files), pattern)
+            files = files[self.keep:]
+            for (t, f) in files:
+                log.info("Deleting %s", f)
+                if not self.dry_run:
+                    if os.path.isdir(f):
+                        shutil.rmtree(f)
+                    else:
+                        os.unlink(f)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/saveopts.py b/venv1/lib/python3.5/site-packages/setuptools/command/saveopts.py
new file mode 100644
index 0000000..611cec5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/saveopts.py
@@ -0,0 +1,22 @@
+from setuptools.command.setopt import edit_config, option_base
+
+
+class saveopts(option_base):
+    """Save command-line options to a file"""
+
+    description = "save supplied options to setup.cfg or other config file"
+
+    def run(self):
+        dist = self.distribution
+        settings = {}
+
+        for cmd in dist.command_options:
+
+            if cmd == 'saveopts':
+                continue  # don't save our own options!
+
+            for opt, (src, val) in dist.get_option_dict(cmd).items():
+                if src == "command line":
+                    settings.setdefault(cmd, {})[opt] = val
+
+        edit_config(self.filename, settings, self.dry_run)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/sdist.py b/venv1/lib/python3.5/site-packages/setuptools/command/sdist.py
new file mode 100644
index 0000000..bcfae4d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/sdist.py
@@ -0,0 +1,200 @@
+from distutils import log
+import distutils.command.sdist as orig
+import os
+import sys
+import io
+import contextlib
+
+from setuptools.extern import six
+
+from .py36compat import sdist_add_defaults
+
+import pkg_resources
+
+_default_revctrl = list
+
+
+def walk_revctrl(dirname=''):
+    """Find all files under revision control"""
+    for ep in pkg_resources.iter_entry_points('setuptools.file_finders'):
+        for item in ep.load()(dirname):
+            yield item
+
+
+class sdist(sdist_add_defaults, orig.sdist):
+    """Smart sdist that finds anything supported by revision control"""
+
+    user_options = [
+        ('formats=', None,
+         "formats for source distribution (comma-separated list)"),
+        ('keep-temp', 'k',
+         "keep the distribution tree around after creating " +
+         "archive file(s)"),
+        ('dist-dir=', 'd',
+         "directory to put the source distribution archive(s) in "
+         "[default: dist]"),
+    ]
+
+    negative_opt = {}
+
+    README_EXTENSIONS = ['', '.rst', '.txt', '.md']
+    READMES = tuple('README{0}'.format(ext) for ext in README_EXTENSIONS)
+
+    def run(self):
+        self.run_command('egg_info')
+        ei_cmd = self.get_finalized_command('egg_info')
+        self.filelist = ei_cmd.filelist
+        self.filelist.append(os.path.join(ei_cmd.egg_info, 'SOURCES.txt'))
+        self.check_readme()
+
+        # Run sub commands
+        for cmd_name in self.get_sub_commands():
+            self.run_command(cmd_name)
+
+        self.make_distribution()
+
+        dist_files = getattr(self.distribution, 'dist_files', [])
+        for file in self.archive_files:
+            data = ('sdist', '', file)
+            if data not in dist_files:
+                dist_files.append(data)
+
+    def initialize_options(self):
+        orig.sdist.initialize_options(self)
+
+        self._default_to_gztar()
+
+    def _default_to_gztar(self):
+        # only needed on Python prior to 3.6.
+        if sys.version_info >= (3, 6, 0, 'beta', 1):
+            return
+        self.formats = ['gztar']
+
+    def make_distribution(self):
+        """
+        Workaround for #516
+        """
+        with self._remove_os_link():
+            orig.sdist.make_distribution(self)
+
+    @staticmethod
+    @contextlib.contextmanager
+    def _remove_os_link():
+        """
+        In a context, remove and restore os.link if it exists
+        """
+
+        class NoValue:
+            pass
+
+        orig_val = getattr(os, 'link', NoValue)
+        try:
+            del os.link
+        except Exception:
+            pass
+        try:
+            yield
+        finally:
+            if orig_val is not NoValue:
+                setattr(os, 'link', orig_val)
+
+    def __read_template_hack(self):
+        # This grody hack closes the template file (MANIFEST.in) if an
+        #  exception occurs during read_template.
+        # Doing so prevents an error when easy_install attempts to delete the
+        #  file.
+        try:
+            orig.sdist.read_template(self)
+        except Exception:
+            _, _, tb = sys.exc_info()
+            tb.tb_next.tb_frame.f_locals['template'].close()
+            raise
+
+    # Beginning with Python 2.7.2, 3.1.4, and 3.2.1, this leaky file handle
+    #  has been fixed, so only override the method if we're using an earlier
+    #  Python.
+    has_leaky_handle = (
+        sys.version_info < (2, 7, 2)
+        or (3, 0) <= sys.version_info < (3, 1, 4)
+        or (3, 2) <= sys.version_info < (3, 2, 1)
+    )
+    if has_leaky_handle:
+        read_template = __read_template_hack
+
+    def _add_defaults_python(self):
+        """getting python files"""
+        if self.distribution.has_pure_modules():
+            build_py = self.get_finalized_command('build_py')
+            self.filelist.extend(build_py.get_source_files())
+            # This functionality is incompatible with include_package_data, and
+            # will in fact create an infinite recursion if include_package_data
+            # is True.  Use of include_package_data will imply that
+            # distutils-style automatic handling of package_data is disabled
+            if not self.distribution.include_package_data:
+                for _, src_dir, _, filenames in build_py.data_files:
+                    self.filelist.extend([os.path.join(src_dir, filename)
+                                          for filename in filenames])
+
+    def _add_defaults_data_files(self):
+        try:
+            if six.PY2:
+                sdist_add_defaults._add_defaults_data_files(self)
+            else:
+                super()._add_defaults_data_files()
+        except TypeError:
+            log.warn("data_files contains unexpected objects")
+
+    def check_readme(self):
+        for f in self.READMES:
+            if os.path.exists(f):
+                return
+        else:
+            self.warn(
+                "standard file not found: should have one of " +
+                ', '.join(self.READMES)
+            )
+
+    def make_release_tree(self, base_dir, files):
+        orig.sdist.make_release_tree(self, base_dir, files)
+
+        # Save any egg_info command line options used to create this sdist
+        dest = os.path.join(base_dir, 'setup.cfg')
+        if hasattr(os, 'link') and os.path.exists(dest):
+            # unlink and re-copy, since it might be hard-linked, and
+            # we don't want to change the source version
+            os.unlink(dest)
+            self.copy_file('setup.cfg', dest)
+
+        self.get_finalized_command('egg_info').save_version_info(dest)
+
+    def _manifest_is_not_generated(self):
+        # check for special comment used in 2.7.1 and higher
+        if not os.path.isfile(self.manifest):
+            return False
+
+        with io.open(self.manifest, 'rb') as fp:
+            first_line = fp.readline()
+        return (first_line !=
+                '# file GENERATED by distutils, do NOT edit\n'.encode())
+
+    def read_manifest(self):
+        """Read the manifest file (named by 'self.manifest') and use it to
+        fill in 'self.filelist', the list of files to include in the source
+        distribution.
+        """
+        log.info("reading manifest file '%s'", self.manifest)
+        manifest = open(self.manifest, 'rb')
+        for line in manifest:
+            # The manifest must contain UTF-8. See #303.
+            if six.PY3:
+                try:
+                    line = line.decode('UTF-8')
+                except UnicodeDecodeError:
+                    log.warn("%r not UTF-8 decodable -- skipping" % line)
+                    continue
+            # ignore comments and blank lines
+            line = line.strip()
+            if line.startswith('#') or not line:
+                continue
+            self.filelist.append(line)
+        manifest.close()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/setopt.py b/venv1/lib/python3.5/site-packages/setuptools/command/setopt.py
new file mode 100644
index 0000000..7e57cc0
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/setopt.py
@@ -0,0 +1,149 @@
+from distutils.util import convert_path
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import distutils
+import os
+
+from setuptools.extern.six.moves import configparser
+
+from setuptools import Command
+
+__all__ = ['config_file', 'edit_config', 'option_base', 'setopt']
+
+
+def config_file(kind="local"):
+    """Get the filename of the distutils, local, global, or per-user config
+
+    `kind` must be one of "local", "global", or "user"
+    """
+    if kind == 'local':
+        return 'setup.cfg'
+    if kind == 'global':
+        return os.path.join(
+            os.path.dirname(distutils.__file__), 'distutils.cfg'
+        )
+    if kind == 'user':
+        dot = os.name == 'posix' and '.' or ''
+        return os.path.expanduser(convert_path("~/%spydistutils.cfg" % dot))
+    raise ValueError(
+        "config_file() type must be 'local', 'global', or 'user'", kind
+    )
+
+
+def edit_config(filename, settings, dry_run=False):
+    """Edit a configuration file to include `settings`
+
+    `settings` is a dictionary of dictionaries or ``None`` values, keyed by
+    command/section name.  A ``None`` value means to delete the entire section,
+    while a dictionary lists settings to be changed or deleted in that section.
+    A setting of ``None`` means to delete that setting.
+    """
+    log.debug("Reading configuration from %s", filename)
+    opts = configparser.RawConfigParser()
+    opts.read([filename])
+    for section, options in settings.items():
+        if options is None:
+            log.info("Deleting section [%s] from %s", section, filename)
+            opts.remove_section(section)
+        else:
+            if not opts.has_section(section):
+                log.debug("Adding new section [%s] to %s", section, filename)
+                opts.add_section(section)
+            for option, value in options.items():
+                if value is None:
+                    log.debug(
+                        "Deleting %s.%s from %s",
+                        section, option, filename
+                    )
+                    opts.remove_option(section, option)
+                    if not opts.options(section):
+                        log.info("Deleting empty [%s] section from %s",
+                                 section, filename)
+                        opts.remove_section(section)
+                else:
+                    log.debug(
+                        "Setting %s.%s to %r in %s",
+                        section, option, value, filename
+                    )
+                    opts.set(section, option, value)
+
+    log.info("Writing %s", filename)
+    if not dry_run:
+        with open(filename, 'w') as f:
+            opts.write(f)
+
+
+class option_base(Command):
+    """Abstract base class for commands that mess with config files"""
+
+    user_options = [
+        ('global-config', 'g',
+         "save options to the site-wide distutils.cfg file"),
+        ('user-config', 'u',
+         "save options to the current user's pydistutils.cfg file"),
+        ('filename=', 'f',
+         "configuration file to use (default=setup.cfg)"),
+    ]
+
+    boolean_options = [
+        'global-config', 'user-config',
+    ]
+
+    def initialize_options(self):
+        self.global_config = None
+        self.user_config = None
+        self.filename = None
+
+    def finalize_options(self):
+        filenames = []
+        if self.global_config:
+            filenames.append(config_file('global'))
+        if self.user_config:
+            filenames.append(config_file('user'))
+        if self.filename is not None:
+            filenames.append(self.filename)
+        if not filenames:
+            filenames.append(config_file('local'))
+        if len(filenames) > 1:
+            raise DistutilsOptionError(
+                "Must specify only one configuration file option",
+                filenames
+            )
+        self.filename, = filenames
+
+
+class setopt(option_base):
+    """Save command-line options to a file"""
+
+    description = "set an option in setup.cfg or another config file"
+
+    user_options = [
+        ('command=', 'c', 'command to set an option for'),
+        ('option=', 'o', 'option to set'),
+        ('set-value=', 's', 'value of the option'),
+        ('remove', 'r', 'remove (unset) the value'),
+    ] + option_base.user_options
+
+    boolean_options = option_base.boolean_options + ['remove']
+
+    def initialize_options(self):
+        option_base.initialize_options(self)
+        self.command = None
+        self.option = None
+        self.set_value = None
+        self.remove = None
+
+    def finalize_options(self):
+        option_base.finalize_options(self)
+        if self.command is None or self.option is None:
+            raise DistutilsOptionError("Must specify --command *and* --option")
+        if self.set_value is None and not self.remove:
+            raise DistutilsOptionError("Must specify --set-value or --remove")
+
+    def run(self):
+        edit_config(
+            self.filename, {
+                self.command: {self.option.replace('-', '_'): self.set_value}
+            },
+            self.dry_run
+        )
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/test.py b/venv1/lib/python3.5/site-packages/setuptools/command/test.py
new file mode 100644
index 0000000..51aee1f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/test.py
@@ -0,0 +1,268 @@
+import os
+import operator
+import sys
+import contextlib
+import itertools
+import unittest
+from distutils.errors import DistutilsError, DistutilsOptionError
+from distutils import log
+from unittest import TestLoader
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter
+
+from pkg_resources import (resource_listdir, resource_exists, normalize_path,
+                           working_set, _namespace_packages, evaluate_marker,
+                           add_activation_listener, require, EntryPoint)
+from setuptools import Command
+
+
+class ScanningLoader(TestLoader):
+
+    def __init__(self):
+        TestLoader.__init__(self)
+        self._visited = set()
+
+    def loadTestsFromModule(self, module, pattern=None):
+        """Return a suite of all tests cases contained in the given module
+
+        If the module is a package, load tests from all the modules in it.
+        If the module has an ``additional_tests`` function, call it and add
+        the return value to the tests.
+        """
+        if module in self._visited:
+            return None
+        self._visited.add(module)
+
+        tests = []
+        tests.append(TestLoader.loadTestsFromModule(self, module))
+
+        if hasattr(module, "additional_tests"):
+            tests.append(module.additional_tests())
+
+        if hasattr(module, '__path__'):
+            for file in resource_listdir(module.__name__, ''):
+                if file.endswith('.py') and file != '__init__.py':
+                    submodule = module.__name__ + '.' + file[:-3]
+                else:
+                    if resource_exists(module.__name__, file + '/__init__.py'):
+                        submodule = module.__name__ + '.' + file
+                    else:
+                        continue
+                tests.append(self.loadTestsFromName(submodule))
+
+        if len(tests) != 1:
+            return self.suiteClass(tests)
+        else:
+            return tests[0]  # don't create a nested suite for only one return
+
+
+# adapted from jaraco.classes.properties:NonDataProperty
+class NonDataProperty(object):
+    def __init__(self, fget):
+        self.fget = fget
+
+    def __get__(self, obj, objtype=None):
+        if obj is None:
+            return self
+        return self.fget(obj)
+
+
+class test(Command):
+    """Command to run unit tests after in-place build"""
+
+    description = "run unit tests after in-place build"
+
+    user_options = [
+        ('test-module=', 'm', "Run 'test_suite' in specified module"),
+        ('test-suite=', 's',
+         "Run single test, case or suite (e.g. 'module.test_suite')"),
+        ('test-runner=', 'r', "Test runner to use"),
+    ]
+
+    def initialize_options(self):
+        self.test_suite = None
+        self.test_module = None
+        self.test_loader = None
+        self.test_runner = None
+
+    def finalize_options(self):
+
+        if self.test_suite and self.test_module:
+            msg = "You may specify a module or a suite, but not both"
+            raise DistutilsOptionError(msg)
+
+        if self.test_suite is None:
+            if self.test_module is None:
+                self.test_suite = self.distribution.test_suite
+            else:
+                self.test_suite = self.test_module + ".test_suite"
+
+        if self.test_loader is None:
+            self.test_loader = getattr(self.distribution, 'test_loader', None)
+        if self.test_loader is None:
+            self.test_loader = "setuptools.command.test:ScanningLoader"
+        if self.test_runner is None:
+            self.test_runner = getattr(self.distribution, 'test_runner', None)
+
+    @NonDataProperty
+    def test_args(self):
+        return list(self._test_args())
+
+    def _test_args(self):
+        if not self.test_suite and sys.version_info >= (2, 7):
+            yield 'discover'
+        if self.verbose:
+            yield '--verbose'
+        if self.test_suite:
+            yield self.test_suite
+
+    def with_project_on_sys_path(self, func):
+        """
+        Backward compatibility for project_on_sys_path context.
+        """
+        with self.project_on_sys_path():
+            func()
+
+    @contextlib.contextmanager
+    def project_on_sys_path(self, include_dists=[]):
+        with_2to3 = six.PY3 and getattr(self.distribution, 'use_2to3', False)
+
+        if with_2to3:
+            # If we run 2to3 we can not do this inplace:
+
+            # Ensure metadata is up-to-date
+            self.reinitialize_command('build_py', inplace=0)
+            self.run_command('build_py')
+            bpy_cmd = self.get_finalized_command("build_py")
+            build_path = normalize_path(bpy_cmd.build_lib)
+
+            # Build extensions
+            self.reinitialize_command('egg_info', egg_base=build_path)
+            self.run_command('egg_info')
+
+            self.reinitialize_command('build_ext', inplace=0)
+            self.run_command('build_ext')
+        else:
+            # Without 2to3 inplace works fine:
+            self.run_command('egg_info')
+
+            # Build extensions in-place
+            self.reinitialize_command('build_ext', inplace=1)
+            self.run_command('build_ext')
+
+        ei_cmd = self.get_finalized_command("egg_info")
+
+        old_path = sys.path[:]
+        old_modules = sys.modules.copy()
+
+        try:
+            project_path = normalize_path(ei_cmd.egg_base)
+            sys.path.insert(0, project_path)
+            working_set.__init__()
+            add_activation_listener(lambda dist: dist.activate())
+            require('%s==%s' % (ei_cmd.egg_name, ei_cmd.egg_version))
+            with self.paths_on_pythonpath([project_path]):
+                yield
+        finally:
+            sys.path[:] = old_path
+            sys.modules.clear()
+            sys.modules.update(old_modules)
+            working_set.__init__()
+
+    @staticmethod
+    @contextlib.contextmanager
+    def paths_on_pythonpath(paths):
+        """
+        Add the indicated paths to the head of the PYTHONPATH environment
+        variable so that subprocesses will also see the packages at
+        these paths.
+
+        Do this in a context that restores the value on exit.
+        """
+        nothing = object()
+        orig_pythonpath = os.environ.get('PYTHONPATH', nothing)
+        current_pythonpath = os.environ.get('PYTHONPATH', '')
+        try:
+            prefix = os.pathsep.join(paths)
+            to_join = filter(None, [prefix, current_pythonpath])
+            new_path = os.pathsep.join(to_join)
+            if new_path:
+                os.environ['PYTHONPATH'] = new_path
+            yield
+        finally:
+            if orig_pythonpath is nothing:
+                os.environ.pop('PYTHONPATH', None)
+            else:
+                os.environ['PYTHONPATH'] = orig_pythonpath
+
+    @staticmethod
+    def install_dists(dist):
+        """
+        Install the requirements indicated by self.distribution and
+        return an iterable of the dists that were built.
+        """
+        ir_d = dist.fetch_build_eggs(dist.install_requires)
+        tr_d = dist.fetch_build_eggs(dist.tests_require or [])
+        er_d = dist.fetch_build_eggs(
+            v for k, v in dist.extras_require.items()
+            if k.startswith(':') and evaluate_marker(k[1:])
+        )
+        return itertools.chain(ir_d, tr_d, er_d)
+
+    def run(self):
+        installed_dists = self.install_dists(self.distribution)
+
+        cmd = ' '.join(self._argv)
+        if self.dry_run:
+            self.announce('skipping "%s" (dry run)' % cmd)
+            return
+
+        self.announce('running "%s"' % cmd)
+
+        paths = map(operator.attrgetter('location'), installed_dists)
+        with self.paths_on_pythonpath(paths):
+            with self.project_on_sys_path():
+                self.run_tests()
+
+    def run_tests(self):
+        # Purge modules under test from sys.modules. The test loader will
+        # re-import them from the build location. Required when 2to3 is used
+        # with namespace packages.
+        if six.PY3 and getattr(self.distribution, 'use_2to3', False):
+            module = self.test_suite.split('.')[0]
+            if module in _namespace_packages:
+                del_modules = []
+                if module in sys.modules:
+                    del_modules.append(module)
+                module += '.'
+                for name in sys.modules:
+                    if name.startswith(module):
+                        del_modules.append(name)
+                list(map(sys.modules.__delitem__, del_modules))
+
+        test = unittest.main(
+            None, None, self._argv,
+            testLoader=self._resolve_as_ep(self.test_loader),
+            testRunner=self._resolve_as_ep(self.test_runner),
+            exit=False,
+        )
+        if not test.result.wasSuccessful():
+            msg = 'Test failed: %s' % test.result
+            self.announce(msg, log.ERROR)
+            raise DistutilsError(msg)
+
+    @property
+    def _argv(self):
+        return ['unittest'] + self.test_args
+
+    @staticmethod
+    def _resolve_as_ep(val):
+        """
+        Load the indicated attribute value, called, as a as if it were
+        specified as an entry point.
+        """
+        if val is None:
+            return
+        parsed = EntryPoint.parse("x=" + val)
+        return parsed.resolve()()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/upload.py b/venv1/lib/python3.5/site-packages/setuptools/command/upload.py
new file mode 100644
index 0000000..a44173a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/upload.py
@@ -0,0 +1,42 @@
+import getpass
+from distutils.command import upload as orig
+
+
+class upload(orig.upload):
+    """
+    Override default upload behavior to obtain password
+    in a variety of different ways.
+    """
+
+    def finalize_options(self):
+        orig.upload.finalize_options(self)
+        self.username = (
+            self.username or
+            getpass.getuser()
+        )
+        # Attempt to obtain password. Short circuit evaluation at the first
+        # sign of success.
+        self.password = (
+            self.password or
+            self._load_password_from_keyring() or
+            self._prompt_for_password()
+        )
+
+    def _load_password_from_keyring(self):
+        """
+        Attempt to load password from keyring. Suppress Exceptions.
+        """
+        try:
+            keyring = __import__('keyring')
+            return keyring.get_password(self.repository, self.username)
+        except Exception:
+            pass
+
+    def _prompt_for_password(self):
+        """
+        Prompt for a password on the tty. Suppress Exceptions.
+        """
+        try:
+            return getpass.getpass()
+        except (Exception, KeyboardInterrupt):
+            pass
diff --git a/venv1/lib/python3.5/site-packages/setuptools/command/upload_docs.py b/venv1/lib/python3.5/site-packages/setuptools/command/upload_docs.py
new file mode 100644
index 0000000..07aa564
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/command/upload_docs.py
@@ -0,0 +1,206 @@
+# -*- coding: utf-8 -*-
+"""upload_docs
+
+Implements a Distutils 'upload_docs' subcommand (upload documentation to
+PyPI's pythonhosted.org).
+"""
+
+from base64 import standard_b64encode
+from distutils import log
+from distutils.errors import DistutilsOptionError
+import os
+import socket
+import zipfile
+import tempfile
+import shutil
+import itertools
+import functools
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import http_client, urllib
+
+from pkg_resources import iter_entry_points
+from .upload import upload
+
+
+def _encode(s):
+    errors = 'surrogateescape' if six.PY3 else 'strict'
+    return s.encode('utf-8', errors)
+
+
+class upload_docs(upload):
+    # override the default repository as upload_docs isn't
+    # supported by Warehouse (and won't be).
+    DEFAULT_REPOSITORY = 'https://pypi.python.org/pypi/'
+
+    description = 'Upload documentation to PyPI'
+
+    user_options = [
+        ('repository=', 'r',
+         "url of repository [default: %s]" % upload.DEFAULT_REPOSITORY),
+        ('show-response', None,
+         'display full response text from server'),
+        ('upload-dir=', None, 'directory to upload'),
+    ]
+    boolean_options = upload.boolean_options
+
+    def has_sphinx(self):
+        if self.upload_dir is None:
+            for ep in iter_entry_points('distutils.commands', 'build_sphinx'):
+                return True
+
+    sub_commands = [('build_sphinx', has_sphinx)]
+
+    def initialize_options(self):
+        upload.initialize_options(self)
+        self.upload_dir = None
+        self.target_dir = None
+
+    def finalize_options(self):
+        upload.finalize_options(self)
+        if self.upload_dir is None:
+            if self.has_sphinx():
+                build_sphinx = self.get_finalized_command('build_sphinx')
+                self.target_dir = build_sphinx.builder_target_dir
+            else:
+                build = self.get_finalized_command('build')
+                self.target_dir = os.path.join(build.build_base, 'docs')
+        else:
+            self.ensure_dirname('upload_dir')
+            self.target_dir = self.upload_dir
+        if 'pypi.python.org' in self.repository:
+            log.warn("Upload_docs command is deprecated. Use RTD instead.")
+        self.announce('Using upload directory %s' % self.target_dir)
+
+    def create_zipfile(self, filename):
+        zip_file = zipfile.ZipFile(filename, "w")
+        try:
+            self.mkpath(self.target_dir)  # just in case
+            for root, dirs, files in os.walk(self.target_dir):
+                if root == self.target_dir and not files:
+                    tmpl = "no files found in upload directory '%s'"
+                    raise DistutilsOptionError(tmpl % self.target_dir)
+                for name in files:
+                    full = os.path.join(root, name)
+                    relative = root[len(self.target_dir):].lstrip(os.path.sep)
+                    dest = os.path.join(relative, name)
+                    zip_file.write(full, dest)
+        finally:
+            zip_file.close()
+
+    def run(self):
+        # Run sub commands
+        for cmd_name in self.get_sub_commands():
+            self.run_command(cmd_name)
+
+        tmp_dir = tempfile.mkdtemp()
+        name = self.distribution.metadata.get_name()
+        zip_file = os.path.join(tmp_dir, "%s.zip" % name)
+        try:
+            self.create_zipfile(zip_file)
+            self.upload_file(zip_file)
+        finally:
+            shutil.rmtree(tmp_dir)
+
+    @staticmethod
+    def _build_part(item, sep_boundary):
+        key, values = item
+        title = '\nContent-Disposition: form-data; name="%s"' % key
+        # handle multiple entries for the same name
+        if not isinstance(values, list):
+            values = [values]
+        for value in values:
+            if isinstance(value, tuple):
+                title += '; filename="%s"' % value[0]
+                value = value[1]
+            else:
+                value = _encode(value)
+            yield sep_boundary
+            yield _encode(title)
+            yield b"\n\n"
+            yield value
+            if value and value[-1:] == b'\r':
+                yield b'\n'  # write an extra newline (lurve Macs)
+
+    @classmethod
+    def _build_multipart(cls, data):
+        """
+        Build up the MIME payload for the POST data
+        """
+        boundary = b'--------------GHSKFJDLGDS7543FJKLFHRE75642756743254'
+        sep_boundary = b'\n--' + boundary
+        end_boundary = sep_boundary + b'--'
+        end_items = end_boundary, b"\n",
+        builder = functools.partial(
+            cls._build_part,
+            sep_boundary=sep_boundary,
+        )
+        part_groups = map(builder, data.items())
+        parts = itertools.chain.from_iterable(part_groups)
+        body_items = itertools.chain(parts, end_items)
+        content_type = 'multipart/form-data; boundary=%s' % boundary.decode('ascii')
+        return b''.join(body_items), content_type
+
+    def upload_file(self, filename):
+        with open(filename, 'rb') as f:
+            content = f.read()
+        meta = self.distribution.metadata
+        data = {
+            ':action': 'doc_upload',
+            'name': meta.get_name(),
+            'content': (os.path.basename(filename), content),
+        }
+        # set up the authentication
+        credentials = _encode(self.username + ':' + self.password)
+        credentials = standard_b64encode(credentials)
+        if six.PY3:
+            credentials = credentials.decode('ascii')
+        auth = "Basic " + credentials
+
+        body, ct = self._build_multipart(data)
+
+        msg = "Submitting documentation to %s" % (self.repository)
+        self.announce(msg, log.INFO)
+
+        # build the Request
+        # We can't use urllib2 since we need to send the Basic
+        # auth right with the first request
+        schema, netloc, url, params, query, fragments = \
+            urllib.parse.urlparse(self.repository)
+        assert not params and not query and not fragments
+        if schema == 'http':
+            conn = http_client.HTTPConnection(netloc)
+        elif schema == 'https':
+            conn = http_client.HTTPSConnection(netloc)
+        else:
+            raise AssertionError("unsupported schema " + schema)
+
+        data = ''
+        try:
+            conn.connect()
+            conn.putrequest("POST", url)
+            content_type = ct
+            conn.putheader('Content-type', content_type)
+            conn.putheader('Content-length', str(len(body)))
+            conn.putheader('Authorization', auth)
+            conn.endheaders()
+            conn.send(body)
+        except socket.error as e:
+            self.announce(str(e), log.ERROR)
+            return
+
+        r = conn.getresponse()
+        if r.status == 200:
+            msg = 'Server response (%s): %s' % (r.status, r.reason)
+            self.announce(msg, log.INFO)
+        elif r.status == 301:
+            location = r.getheader('Location')
+            if location is None:
+                location = 'https://pythonhosted.org/%s/' % meta.get_name()
+            msg = 'Upload successful. Visit %s' % location
+            self.announce(msg, log.INFO)
+        else:
+            msg = 'Upload failed (%s): %s' % (r.status, r.reason)
+            self.announce(msg, log.ERROR)
+        if self.show_response:
+            print('-' * 75, r.read(), '-' * 75)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/config.py b/venv1/lib/python3.5/site-packages/setuptools/config.py
new file mode 100644
index 0000000..5382844
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/config.py
@@ -0,0 +1,554 @@
+from __future__ import absolute_import, unicode_literals
+import io
+import os
+import sys
+from collections import defaultdict
+from functools import partial
+from importlib import import_module
+
+from distutils.errors import DistutilsOptionError, DistutilsFileError
+from setuptools.extern.six import string_types
+
+
+def read_configuration(
+        filepath, find_others=False, ignore_option_errors=False):
+    """Read given configuration file and returns options from it as a dict.
+
+    :param str|unicode filepath: Path to configuration file
+        to get options from.
+
+    :param bool find_others: Whether to search for other configuration files
+        which could be on in various places.
+
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+
+    :rtype: dict
+    """
+    from setuptools.dist import Distribution, _Distribution
+
+    filepath = os.path.abspath(filepath)
+
+    if not os.path.isfile(filepath):
+        raise DistutilsFileError(
+            'Configuration file %s does not exist.' % filepath)
+
+    current_directory = os.getcwd()
+    os.chdir(os.path.dirname(filepath))
+
+    try:
+        dist = Distribution()
+
+        filenames = dist.find_config_files() if find_others else []
+        if filepath not in filenames:
+            filenames.append(filepath)
+
+        _Distribution.parse_config_files(dist, filenames=filenames)
+
+        handlers = parse_configuration(
+            dist, dist.command_options,
+            ignore_option_errors=ignore_option_errors)
+
+    finally:
+        os.chdir(current_directory)
+
+    return configuration_to_dict(handlers)
+
+
+def configuration_to_dict(handlers):
+    """Returns configuration data gathered by given handlers as a dict.
+
+    :param list[ConfigHandler] handlers: Handlers list,
+        usually from parse_configuration()
+
+    :rtype: dict
+    """
+    config_dict = defaultdict(dict)
+
+    for handler in handlers:
+
+        obj_alias = handler.section_prefix
+        target_obj = handler.target_obj
+
+        for option in handler.set_options:
+            getter = getattr(target_obj, 'get_%s' % option, None)
+
+            if getter is None:
+                value = getattr(target_obj, option)
+
+            else:
+                value = getter()
+
+            config_dict[obj_alias][option] = value
+
+    return config_dict
+
+
+def parse_configuration(
+        distribution, command_options, ignore_option_errors=False):
+    """Performs additional parsing of configuration options
+    for a distribution.
+
+    Returns a list of used option handlers.
+
+    :param Distribution distribution:
+    :param dict command_options:
+    :param bool ignore_option_errors: Whether to silently ignore
+        options, values of which could not be resolved (e.g. due to exceptions
+        in directives such as file:, attr:, etc.).
+        If False exceptions are propagated as expected.
+    :rtype: list
+    """
+    meta = ConfigMetadataHandler(
+        distribution.metadata, command_options, ignore_option_errors)
+    meta.parse()
+
+    options = ConfigOptionsHandler(
+        distribution, command_options, ignore_option_errors)
+    options.parse()
+
+    return [meta, options]
+
+
+class ConfigHandler(object):
+    """Handles metadata supplied in configuration files."""
+
+    section_prefix = None
+    """Prefix for config sections handled by this handler.
+    Must be provided by class heirs.
+
+    """
+
+    aliases = {}
+    """Options aliases.
+    For compatibility with various packages. E.g.: d2to1 and pbr.
+    Note: `-` in keys is replaced with `_` by config parser.
+
+    """
+
+    def __init__(self, target_obj, options, ignore_option_errors=False):
+        sections = {}
+
+        section_prefix = self.section_prefix
+        for section_name, section_options in options.items():
+            if not section_name.startswith(section_prefix):
+                continue
+
+            section_name = section_name.replace(section_prefix, '').strip('.')
+            sections[section_name] = section_options
+
+        self.ignore_option_errors = ignore_option_errors
+        self.target_obj = target_obj
+        self.sections = sections
+        self.set_options = []
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        raise NotImplementedError(
+            '%s must provide .parsers property' % self.__class__.__name__)
+
+    def __setitem__(self, option_name, value):
+        unknown = tuple()
+        target_obj = self.target_obj
+
+        # Translate alias into real name.
+        option_name = self.aliases.get(option_name, option_name)
+
+        current_value = getattr(target_obj, option_name, unknown)
+
+        if current_value is unknown:
+            raise KeyError(option_name)
+
+        if current_value:
+            # Already inhabited. Skipping.
+            return
+
+        skip_option = False
+        parser = self.parsers.get(option_name)
+        if parser:
+            try:
+                value = parser(value)
+
+            except Exception:
+                skip_option = True
+                if not self.ignore_option_errors:
+                    raise
+
+        if skip_option:
+            return
+
+        setter = getattr(target_obj, 'set_%s' % option_name, None)
+        if setter is None:
+            setattr(target_obj, option_name, value)
+        else:
+            setter(value)
+
+        self.set_options.append(option_name)
+
+    @classmethod
+    def _parse_list(cls, value, separator=','):
+        """Represents value as a list.
+
+        Value is split either by separator (defaults to comma) or by lines.
+
+        :param value:
+        :param separator: List items separator character.
+        :rtype: list
+        """
+        if isinstance(value, list):  # _get_parser_compound case
+            return value
+
+        if '\n' in value:
+            value = value.splitlines()
+        else:
+            value = value.split(separator)
+
+        return [chunk.strip() for chunk in value if chunk.strip()]
+
+    @classmethod
+    def _parse_dict(cls, value):
+        """Represents value as a dict.
+
+        :param value:
+        :rtype: dict
+        """
+        separator = '='
+        result = {}
+        for line in cls._parse_list(value):
+            key, sep, val = line.partition(separator)
+            if sep != separator:
+                raise DistutilsOptionError(
+                    'Unable to parse option value to dict: %s' % value)
+            result[key.strip()] = val.strip()
+
+        return result
+
+    @classmethod
+    def _parse_bool(cls, value):
+        """Represents value as boolean.
+
+        :param value:
+        :rtype: bool
+        """
+        value = value.lower()
+        return value in ('1', 'true', 'yes')
+
+    @classmethod
+    def _parse_file(cls, value):
+        """Represents value as a string, allowing including text
+        from nearest files using `file:` directive.
+
+        Directive is sandboxed and won't reach anything outside
+        directory with setup.py.
+
+        Examples:
+            file: LICENSE
+            file: README.rst, CHANGELOG.md, src/file.txt
+
+        :param str value:
+        :rtype: str
+        """
+        include_directive = 'file:'
+
+        if not isinstance(value, string_types):
+            return value
+
+        if not value.startswith(include_directive):
+            return value
+
+        spec = value[len(include_directive):]
+        filepaths = (os.path.abspath(path.strip()) for path in spec.split(','))
+        return '\n'.join(
+            cls._read_file(path)
+            for path in filepaths
+            if (cls._assert_local(path) or True)
+            and os.path.isfile(path)
+        )
+
+    @staticmethod
+    def _assert_local(filepath):
+        if not filepath.startswith(os.getcwd()):
+            raise DistutilsOptionError(
+                '`file:` directive can not access %s' % filepath)
+
+    @staticmethod
+    def _read_file(filepath):
+        with io.open(filepath, encoding='utf-8') as f:
+            return f.read()
+
+    @classmethod
+    def _parse_attr(cls, value):
+        """Represents value as a module attribute.
+
+        Examples:
+            attr: package.attr
+            attr: package.module.attr
+
+        :param str value:
+        :rtype: str
+        """
+        attr_directive = 'attr:'
+        if not value.startswith(attr_directive):
+            return value
+
+        attrs_path = value.replace(attr_directive, '').strip().split('.')
+        attr_name = attrs_path.pop()
+
+        module_name = '.'.join(attrs_path)
+        module_name = module_name or '__init__'
+
+        sys.path.insert(0, os.getcwd())
+        try:
+            module = import_module(module_name)
+            value = getattr(module, attr_name)
+
+        finally:
+            sys.path = sys.path[1:]
+
+        return value
+
+    @classmethod
+    def _get_parser_compound(cls, *parse_methods):
+        """Returns parser function to represents value as a list.
+
+        Parses a value applying given methods one after another.
+
+        :param parse_methods:
+        :rtype: callable
+        """
+        def parse(value):
+            parsed = value
+
+            for method in parse_methods:
+                parsed = method(parsed)
+
+            return parsed
+
+        return parse
+
+    @classmethod
+    def _parse_section_to_dict(cls, section_options, values_parser=None):
+        """Parses section options into a dictionary.
+
+        Optionally applies a given parser to values.
+
+        :param dict section_options:
+        :param callable values_parser:
+        :rtype: dict
+        """
+        value = {}
+        values_parser = values_parser or (lambda val: val)
+        for key, (_, val) in section_options.items():
+            value[key] = values_parser(val)
+        return value
+
+    def parse_section(self, section_options):
+        """Parses configuration file section.
+
+        :param dict section_options:
+        """
+        for (name, (_, value)) in section_options.items():
+            try:
+                self[name] = value
+
+            except KeyError:
+                pass  # Keep silent for a new option may appear anytime.
+
+    def parse(self):
+        """Parses configuration file items from one
+        or more related sections.
+
+        """
+        for section_name, section_options in self.sections.items():
+
+            method_postfix = ''
+            if section_name:  # [section.option] variant
+                method_postfix = '_%s' % section_name
+
+            section_parser_method = getattr(
+                self,
+                # Dots in section names are tranlsated into dunderscores.
+                ('parse_section%s' % method_postfix).replace('.', '__'),
+                None)
+
+            if section_parser_method is None:
+                raise DistutilsOptionError(
+                    'Unsupported distribution option section: [%s.%s]' % (
+                        self.section_prefix, section_name))
+
+            section_parser_method(section_options)
+
+
+class ConfigMetadataHandler(ConfigHandler):
+
+    section_prefix = 'metadata'
+
+    aliases = {
+        'home_page': 'url',
+        'summary': 'description',
+        'classifier': 'classifiers',
+        'platform': 'platforms',
+    }
+
+    strict_mode = False
+    """We need to keep it loose, to be partially compatible with
+    `pbr` and `d2to1` packages which also uses `metadata` section.
+
+    """
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list = self._parse_list
+        parse_file = self._parse_file
+
+        return {
+            'platforms': parse_list,
+            'keywords': parse_list,
+            'provides': parse_list,
+            'requires': parse_list,
+            'obsoletes': parse_list,
+            'classifiers': self._get_parser_compound(parse_file, parse_list),
+            'license': parse_file,
+            'description': parse_file,
+            'long_description': parse_file,
+            'version': self._parse_version,
+        }
+
+    def _parse_version(self, value):
+        """Parses `version` option value.
+
+        :param value:
+        :rtype: str
+
+        """
+        version = self._parse_attr(value)
+
+        if callable(version):
+            version = version()
+
+        if not isinstance(version, string_types):
+            if hasattr(version, '__iter__'):
+                version = '.'.join(map(str, version))
+            else:
+                version = '%s' % version
+
+        return version
+
+
+class ConfigOptionsHandler(ConfigHandler):
+
+    section_prefix = 'options'
+
+    @property
+    def parsers(self):
+        """Metadata item name to parser function mapping."""
+        parse_list = self._parse_list
+        parse_list_semicolon = partial(self._parse_list, separator=';')
+        parse_bool = self._parse_bool
+        parse_dict = self._parse_dict
+
+        return {
+            'zip_safe': parse_bool,
+            'use_2to3': parse_bool,
+            'include_package_data': parse_bool,
+            'package_dir': parse_dict,
+            'use_2to3_fixers': parse_list,
+            'use_2to3_exclude_fixers': parse_list,
+            'convert_2to3_doctests': parse_list,
+            'scripts': parse_list,
+            'eager_resources': parse_list,
+            'dependency_links': parse_list,
+            'namespace_packages': parse_list,
+            'install_requires': parse_list_semicolon,
+            'setup_requires': parse_list_semicolon,
+            'tests_require': parse_list_semicolon,
+            'packages': self._parse_packages,
+            'entry_points': self._parse_file,
+            'py_modules': parse_list,
+        }
+
+    def _parse_packages(self, value):
+        """Parses `packages` option value.
+
+        :param value:
+        :rtype: list
+        """
+        find_directive = 'find:'
+
+        if not value.startswith(find_directive):
+            return self._parse_list(value)
+
+        # Read function arguments from a dedicated section.
+        find_kwargs = self.parse_section_packages__find(
+            self.sections.get('packages.find', {}))
+
+        from setuptools import find_packages
+
+        return find_packages(**find_kwargs)
+
+    def parse_section_packages__find(self, section_options):
+        """Parses `packages.find` configuration file section.
+
+        To be used in conjunction with _parse_packages().
+
+        :param dict section_options:
+        """
+        section_data = self._parse_section_to_dict(
+            section_options, self._parse_list)
+
+        valid_keys = ['where', 'include', 'exclude']
+
+        find_kwargs = dict(
+            [(k, v) for k, v in section_data.items() if k in valid_keys and v])
+
+        where = find_kwargs.get('where')
+        if where is not None:
+            find_kwargs['where'] = where[0]  # cast list to single val
+
+        return find_kwargs
+
+    def parse_section_entry_points(self, section_options):
+        """Parses `entry_points` configuration file section.
+
+        :param dict section_options:
+        """
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+        self['entry_points'] = parsed
+
+    def _parse_package_data(self, section_options):
+        parsed = self._parse_section_to_dict(section_options, self._parse_list)
+
+        root = parsed.get('*')
+        if root:
+            parsed[''] = root
+            del parsed['*']
+
+        return parsed
+
+    def parse_section_package_data(self, section_options):
+        """Parses `package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['package_data'] = self._parse_package_data(section_options)
+
+    def parse_section_exclude_package_data(self, section_options):
+        """Parses `exclude_package_data` configuration file section.
+
+        :param dict section_options:
+        """
+        self['exclude_package_data'] = self._parse_package_data(
+            section_options)
+
+    def parse_section_extras_require(self, section_options):
+        """Parses `extras_require` configuration file section.
+
+        :param dict section_options:
+        """
+        parse_list = partial(self._parse_list, separator=';')
+        self['extras_require'] = self._parse_section_to_dict(
+            section_options, parse_list)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/dep_util.py b/venv1/lib/python3.5/site-packages/setuptools/dep_util.py
new file mode 100644
index 0000000..2931c13
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/dep_util.py
@@ -0,0 +1,23 @@
+from distutils.dep_util import newer_group
+
+# yes, this is was almost entirely copy-pasted from
+# 'newer_pairwise()', this is just another convenience
+# function.
+def newer_pairwise_group(sources_groups, targets):
+    """Walk both arguments in parallel, testing if each source group is newer
+    than its corresponding target. Returns a pair of lists (sources_groups,
+    targets) where sources is newer than target, according to the semantics
+    of 'newer_group()'.
+    """
+    if len(sources_groups) != len(targets):
+        raise ValueError("'sources_group' and 'targets' must be the same length")
+
+    # build a pair of lists (sources_groups, targets) where source is newer
+    n_sources = []
+    n_targets = []
+    for i in range(len(sources_groups)):
+        if newer_group(sources_groups[i], targets[i]):
+            n_sources.append(sources_groups[i])
+            n_targets.append(targets[i])
+
+    return n_sources, n_targets
diff --git a/venv1/lib/python3.5/site-packages/setuptools/depends.py b/venv1/lib/python3.5/site-packages/setuptools/depends.py
new file mode 100644
index 0000000..45e7052
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/depends.py
@@ -0,0 +1,186 @@
+import sys
+import imp
+import marshal
+from distutils.version import StrictVersion
+from imp import PKG_DIRECTORY, PY_COMPILED, PY_SOURCE, PY_FROZEN
+
+from .py33compat import Bytecode
+
+
+__all__ = [
+    'Require', 'find_module', 'get_module_constant', 'extract_constant'
+]
+
+
+class Require:
+    """A prerequisite to building or installing a distribution"""
+
+    def __init__(self, name, requested_version, module, homepage='',
+            attribute=None, format=None):
+
+        if format is None and requested_version is not None:
+            format = StrictVersion
+
+        if format is not None:
+            requested_version = format(requested_version)
+            if attribute is None:
+                attribute = '__version__'
+
+        self.__dict__.update(locals())
+        del self.self
+
+    def full_name(self):
+        """Return full package/distribution name, w/version"""
+        if self.requested_version is not None:
+            return '%s-%s' % (self.name, self.requested_version)
+        return self.name
+
+    def version_ok(self, version):
+        """Is 'version' sufficiently up-to-date?"""
+        return self.attribute is None or self.format is None or \
+            str(version) != "unknown" and version >= self.requested_version
+
+    def get_version(self, paths=None, default="unknown"):
+        """Get version number of installed module, 'None', or 'default'
+
+        Search 'paths' for module.  If not found, return 'None'.  If found,
+        return the extracted version attribute, or 'default' if no version
+        attribute was specified, or the value cannot be determined without
+        importing the module.  The version is formatted according to the
+        requirement's version format (if any), unless it is 'None' or the
+        supplied 'default'.
+        """
+
+        if self.attribute is None:
+            try:
+                f, p, i = find_module(self.module, paths)
+                if f:
+                    f.close()
+                return default
+            except ImportError:
+                return None
+
+        v = get_module_constant(self.module, self.attribute, default, paths)
+
+        if v is not None and v is not default and self.format is not None:
+            return self.format(v)
+
+        return v
+
+    def is_present(self, paths=None):
+        """Return true if dependency is present on 'paths'"""
+        return self.get_version(paths) is not None
+
+    def is_current(self, paths=None):
+        """Return true if dependency is present and up-to-date on 'paths'"""
+        version = self.get_version(paths)
+        if version is None:
+            return False
+        return self.version_ok(version)
+
+
+def find_module(module, paths=None):
+    """Just like 'imp.find_module()', but with package support"""
+
+    parts = module.split('.')
+
+    while parts:
+        part = parts.pop(0)
+        f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
+
+        if kind == PKG_DIRECTORY:
+            parts = parts or ['__init__']
+            paths = [path]
+
+        elif parts:
+            raise ImportError("Can't find %r in %s" % (parts, module))
+
+    return info
+
+
+def get_module_constant(module, symbol, default=-1, paths=None):
+    """Find 'module' by searching 'paths', and extract 'symbol'
+
+    Return 'None' if 'module' does not exist on 'paths', or it does not define
+    'symbol'.  If the module defines 'symbol' as a constant, return the
+    constant.  Otherwise, return 'default'."""
+
+    try:
+        f, path, (suffix, mode, kind) = find_module(module, paths)
+    except ImportError:
+        # Module doesn't exist
+        return None
+
+    try:
+        if kind == PY_COMPILED:
+            f.read(8)  # skip magic & date
+            code = marshal.load(f)
+        elif kind == PY_FROZEN:
+            code = imp.get_frozen_object(module)
+        elif kind == PY_SOURCE:
+            code = compile(f.read(), path, 'exec')
+        else:
+            # Not something we can parse; we'll have to import it.  :(
+            if module not in sys.modules:
+                imp.load_module(module, f, path, (suffix, mode, kind))
+            return getattr(sys.modules[module], symbol, None)
+
+    finally:
+        if f:
+            f.close()
+
+    return extract_constant(code, symbol, default)
+
+
+def extract_constant(code, symbol, default=-1):
+    """Extract the constant value of 'symbol' from 'code'
+
+    If the name 'symbol' is bound to a constant value by the Python code
+    object 'code', return that value.  If 'symbol' is bound to an expression,
+    return 'default'.  Otherwise, return 'None'.
+
+    Return value is based on the first assignment to 'symbol'.  'symbol' must
+    be a global, or at least a non-"fast" local in the code block.  That is,
+    only 'STORE_NAME' and 'STORE_GLOBAL' opcodes are checked, and 'symbol'
+    must be present in 'code.co_names'.
+    """
+    if symbol not in code.co_names:
+        # name's not there, can't possibly be an assignment
+        return None
+
+    name_idx = list(code.co_names).index(symbol)
+
+    STORE_NAME = 90
+    STORE_GLOBAL = 97
+    LOAD_CONST = 100
+
+    const = default
+
+    for byte_code in Bytecode(code):
+        op = byte_code.opcode
+        arg = byte_code.arg
+
+        if op == LOAD_CONST:
+            const = code.co_consts[arg]
+        elif arg == name_idx and (op == STORE_NAME or op == STORE_GLOBAL):
+            return const
+        else:
+            const = default
+
+
+def _update_globals():
+    """
+    Patch the globals to remove the objects not available on some platforms.
+
+    XXX it'd be better to test assertions about bytecode instead.
+    """
+
+    if not sys.platform.startswith('java') and sys.platform != 'cli':
+        return
+    incompatible = 'extract_constant', 'get_module_constant'
+    for name in incompatible:
+        del globals()[name]
+        __all__.remove(name)
+
+
+_update_globals()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/dist.py b/venv1/lib/python3.5/site-packages/setuptools/dist.py
new file mode 100644
index 0000000..477f93d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/dist.py
@@ -0,0 +1,1012 @@
+__all__ = ['Distribution']
+
+import re
+import os
+import warnings
+import numbers
+import distutils.log
+import distutils.core
+import distutils.cmd
+import distutils.dist
+import itertools
+from collections import defaultdict
+from distutils.errors import (
+    DistutilsOptionError, DistutilsPlatformError, DistutilsSetupError,
+)
+from distutils.util import rfc822_escape
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import map, filter, filterfalse
+from pkg_resources.extern import packaging
+
+from setuptools.depends import Require
+from setuptools import windows_support
+from setuptools.monkey import get_unpatched
+from setuptools.config import parse_configuration
+import pkg_resources
+from .py36compat import Distribution_parse_config_files
+
+__import__('pkg_resources.extern.packaging.specifiers')
+__import__('pkg_resources.extern.packaging.version')
+
+
+def _get_unpatched(cls):
+    warnings.warn("Do not call this function", DeprecationWarning)
+    return get_unpatched(cls)
+
+
+# Based on Python 3.5 version
+def write_pkg_file(self, file):
+    """Write the PKG-INFO format data to a file object.
+    """
+    version = '1.0'
+    if (self.provides or self.requires or self.obsoletes or
+            self.classifiers or self.download_url):
+        version = '1.1'
+    # Setuptools specific for PEP 345
+    if hasattr(self, 'python_requires'):
+        version = '1.2'
+
+    file.write('Metadata-Version: %s\n' % version)
+    file.write('Name: %s\n' % self.get_name())
+    file.write('Version: %s\n' % self.get_version())
+    file.write('Summary: %s\n' % self.get_description())
+    file.write('Home-page: %s\n' % self.get_url())
+    file.write('Author: %s\n' % self.get_contact())
+    file.write('Author-email: %s\n' % self.get_contact_email())
+    file.write('License: %s\n' % self.get_license())
+    if self.download_url:
+        file.write('Download-URL: %s\n' % self.download_url)
+
+    long_desc_content_type = getattr(
+        self,
+        'long_description_content_type',
+        None
+    ) or 'UNKNOWN'
+    file.write('Description-Content-Type: %s\n' % long_desc_content_type)
+
+    long_desc = rfc822_escape(self.get_long_description())
+    file.write('Description: %s\n' % long_desc)
+
+    keywords = ','.join(self.get_keywords())
+    if keywords:
+        file.write('Keywords: %s\n' % keywords)
+
+    self._write_list(file, 'Platform', self.get_platforms())
+    self._write_list(file, 'Classifier', self.get_classifiers())
+
+    # PEP 314
+    self._write_list(file, 'Requires', self.get_requires())
+    self._write_list(file, 'Provides', self.get_provides())
+    self._write_list(file, 'Obsoletes', self.get_obsoletes())
+
+    # Setuptools specific for PEP 345
+    if hasattr(self, 'python_requires'):
+        file.write('Requires-Python: %s\n' % self.python_requires)
+
+
+# from Python 3.4
+def write_pkg_info(self, base_dir):
+    """Write the PKG-INFO file into the release tree.
+    """
+    with open(os.path.join(base_dir, 'PKG-INFO'), 'w',
+              encoding='UTF-8') as pkg_info:
+        self.write_pkg_file(pkg_info)
+
+
+sequence = tuple, list
+
+
+def check_importable(dist, attr, value):
+    try:
+        ep = pkg_resources.EntryPoint.parse('x=' + value)
+        assert not ep.extras
+    except (TypeError, ValueError, AttributeError, AssertionError):
+        raise DistutilsSetupError(
+            "%r must be importable 'module:attrs' string (got %r)"
+            % (attr, value)
+        )
+
+
+def assert_string_list(dist, attr, value):
+    """Verify that value is a string list or None"""
+    try:
+        assert ''.join(value) != value
+    except (TypeError, ValueError, AttributeError, AssertionError):
+        raise DistutilsSetupError(
+            "%r must be a list of strings (got %r)" % (attr, value)
+        )
+
+
+def check_nsp(dist, attr, value):
+    """Verify that namespace packages are valid"""
+    ns_packages = value
+    assert_string_list(dist, attr, ns_packages)
+    for nsp in ns_packages:
+        if not dist.has_contents_for(nsp):
+            raise DistutilsSetupError(
+                "Distribution contains no modules or packages for " +
+                "namespace package %r" % nsp
+            )
+        parent, sep, child = nsp.rpartition('.')
+        if parent and parent not in ns_packages:
+            distutils.log.warn(
+                "WARNING: %r is declared as a package namespace, but %r"
+                " is not: please correct this in setup.py", nsp, parent
+            )
+
+
+def check_extras(dist, attr, value):
+    """Verify that extras_require mapping is valid"""
+    try:
+        list(itertools.starmap(_check_extra, value.items()))
+    except (TypeError, ValueError, AttributeError):
+        raise DistutilsSetupError(
+            "'extras_require' must be a dictionary whose values are "
+            "strings or lists of strings containing valid project/version "
+            "requirement specifiers."
+        )
+
+
+def _check_extra(extra, reqs):
+    name, sep, marker = extra.partition(':')
+    if marker and pkg_resources.invalid_marker(marker):
+        raise DistutilsSetupError("Invalid environment marker: " + marker)
+    list(pkg_resources.parse_requirements(reqs))
+
+
+def assert_bool(dist, attr, value):
+    """Verify that value is True, False, 0, or 1"""
+    if bool(value) != value:
+        tmpl = "{attr!r} must be a boolean value (got {value!r})"
+        raise DistutilsSetupError(tmpl.format(attr=attr, value=value))
+
+
+def check_requirements(dist, attr, value):
+    """Verify that install_requires is a valid requirements list"""
+    try:
+        list(pkg_resources.parse_requirements(value))
+        if isinstance(value, (dict, set)):
+            raise TypeError("Unordered types are not allowed")
+    except (TypeError, ValueError) as error:
+        tmpl = (
+            "{attr!r} must be a string or list of strings "
+            "containing valid project/version requirement specifiers; {error}"
+        )
+        raise DistutilsSetupError(tmpl.format(attr=attr, error=error))
+
+
+def check_specifier(dist, attr, value):
+    """Verify that value is a valid version specifier"""
+    try:
+        packaging.specifiers.SpecifierSet(value)
+    except packaging.specifiers.InvalidSpecifier as error:
+        tmpl = (
+            "{attr!r} must be a string "
+            "containing valid version specifiers; {error}"
+        )
+        raise DistutilsSetupError(tmpl.format(attr=attr, error=error))
+
+
+def check_entry_points(dist, attr, value):
+    """Verify that entry_points map is parseable"""
+    try:
+        pkg_resources.EntryPoint.parse_map(value)
+    except ValueError as e:
+        raise DistutilsSetupError(e)
+
+
+def check_test_suite(dist, attr, value):
+    if not isinstance(value, six.string_types):
+        raise DistutilsSetupError("test_suite must be a string")
+
+
+def check_package_data(dist, attr, value):
+    """Verify that value is a dictionary of package names to glob lists"""
+    if isinstance(value, dict):
+        for k, v in value.items():
+            if not isinstance(k, str):
+                break
+            try:
+                iter(v)
+            except TypeError:
+                break
+        else:
+            return
+    raise DistutilsSetupError(
+        attr + " must be a dictionary mapping package names to lists of "
+        "wildcard patterns"
+    )
+
+
+def check_packages(dist, attr, value):
+    for pkgname in value:
+        if not re.match(r'\w+(\.\w+)*', pkgname):
+            distutils.log.warn(
+                "WARNING: %r not a valid package name; please use only "
+                ".-separated package names in setup.py", pkgname
+            )
+
+
+_Distribution = get_unpatched(distutils.core.Distribution)
+
+
+class Distribution(Distribution_parse_config_files, _Distribution):
+    """Distribution with support for features, tests, and package data
+
+    This is an enhanced version of 'distutils.dist.Distribution' that
+    effectively adds the following new optional keyword arguments to 'setup()':
+
+     'install_requires' -- a string or sequence of strings specifying project
+        versions that the distribution requires when installed, in the format
+        used by 'pkg_resources.require()'.  They will be installed
+        automatically when the package is installed.  If you wish to use
+        packages that are not available in PyPI, or want to give your users an
+        alternate download location, you can add a 'find_links' option to the
+        '[easy_install]' section of your project's 'setup.cfg' file, and then
+        setuptools will scan the listed web pages for links that satisfy the
+        requirements.
+
+     'extras_require' -- a dictionary mapping names of optional "extras" to the
+        additional requirement(s) that using those extras incurs. For example,
+        this::
+
+            extras_require = dict(reST = ["docutils>=0.3", "reSTedit"])
+
+        indicates that the distribution can optionally provide an extra
+        capability called "reST", but it can only be used if docutils and
+        reSTedit are installed.  If the user installs your package using
+        EasyInstall and requests one of your extras, the corresponding
+        additional requirements will be installed if needed.
+
+     'features' **deprecated** -- a dictionary mapping option names to
+        'setuptools.Feature'
+        objects.  Features are a portion of the distribution that can be
+        included or excluded based on user options, inter-feature dependencies,
+        and availability on the current system.  Excluded features are omitted
+        from all setup commands, including source and binary distributions, so
+        you can create multiple distributions from the same source tree.
+        Feature names should be valid Python identifiers, except that they may
+        contain the '-' (minus) sign.  Features can be included or excluded
+        via the command line options '--with-X' and '--without-X', where 'X' is
+        the name of the feature.  Whether a feature is included by default, and
+        whether you are allowed to control this from the command line, is
+        determined by the Feature object.  See the 'Feature' class for more
+        information.
+
+     'test_suite' -- the name of a test suite to run for the 'test' command.
+        If the user runs 'python setup.py test', the package will be installed,
+        and the named test suite will be run.  The format is the same as
+        would be used on a 'unittest.py' command line.  That is, it is the
+        dotted name of an object to import and call to generate a test suite.
+
+     'package_data' -- a dictionary mapping package names to lists of filenames
+        or globs to use to find data files contained in the named packages.
+        If the dictionary has filenames or globs listed under '""' (the empty
+        string), those names will be searched for in every package, in addition
+        to any names for the specific package.  Data files found using these
+        names/globs will be installed along with the package, in the same
+        location as the package.  Note that globs are allowed to reference
+        the contents of non-package subdirectories, as long as you use '/' as
+        a path separator.  (Globs are automatically converted to
+        platform-specific paths at runtime.)
+
+    In addition to these new keywords, this class also has several new methods
+    for manipulating the distribution's contents.  For example, the 'include()'
+    and 'exclude()' methods can be thought of as in-place add and subtract
+    commands that add or remove packages, modules, extensions, and so on from
+    the distribution.  They are used by the feature subsystem to configure the
+    distribution for the included and excluded features.
+    """
+
+    _patched_dist = None
+
+    def patch_missing_pkg_info(self, attrs):
+        # Fake up a replacement for the data that would normally come from
+        # PKG-INFO, but which might not yet be built if this is a fresh
+        # checkout.
+        #
+        if not attrs or 'name' not in attrs or 'version' not in attrs:
+            return
+        key = pkg_resources.safe_name(str(attrs['name'])).lower()
+        dist = pkg_resources.working_set.by_key.get(key)
+        if dist is not None and not dist.has_metadata('PKG-INFO'):
+            dist._version = pkg_resources.safe_version(str(attrs['version']))
+            self._patched_dist = dist
+
+    def __init__(self, attrs=None):
+        have_package_data = hasattr(self, "package_data")
+        if not have_package_data:
+            self.package_data = {}
+        attrs = attrs or {}
+        if 'features' in attrs or 'require_features' in attrs:
+            Feature.warn_deprecated()
+        self.require_features = []
+        self.features = {}
+        self.dist_files = []
+        self.src_root = attrs.pop("src_root", None)
+        self.patch_missing_pkg_info(attrs)
+        self.long_description_content_type = attrs.get(
+            'long_description_content_type'
+        )
+        self.dependency_links = attrs.pop('dependency_links', [])
+        self.setup_requires = attrs.pop('setup_requires', [])
+        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
+            vars(self).setdefault(ep.name, None)
+        _Distribution.__init__(self, attrs)
+        if isinstance(self.metadata.version, numbers.Number):
+            # Some people apparently take "version number" too literally :)
+            self.metadata.version = str(self.metadata.version)
+
+        if self.metadata.version is not None:
+            try:
+                ver = packaging.version.Version(self.metadata.version)
+                normalized_version = str(ver)
+                if self.metadata.version != normalized_version:
+                    warnings.warn(
+                        "Normalizing '%s' to '%s'" % (
+                            self.metadata.version,
+                            normalized_version,
+                        )
+                    )
+                    self.metadata.version = normalized_version
+            except (packaging.version.InvalidVersion, TypeError):
+                warnings.warn(
+                    "The version specified (%r) is an invalid version, this "
+                    "may not work as expected with newer versions of "
+                    "setuptools, pip, and PyPI. Please see PEP 440 for more "
+                    "details." % self.metadata.version
+                )
+        self._finalize_requires()
+
+    def _finalize_requires(self):
+        """
+        Set `metadata.python_requires` and fix environment markers
+        in `install_requires` and `extras_require`.
+        """
+        if getattr(self, 'python_requires', None):
+            self.metadata.python_requires = self.python_requires
+        self._convert_extras_requirements()
+        self._move_install_requirements_markers()
+
+    def _convert_extras_requirements(self):
+        """
+        Convert requirements in `extras_require` of the form
+        `"extra": ["barbazquux; {marker}"]` to
+        `"extra:{marker}": ["barbazquux"]`.
+        """
+        spec_ext_reqs = getattr(self, 'extras_require', None) or {}
+        self._tmp_extras_require = defaultdict(list)
+        for section, v in spec_ext_reqs.items():
+            # Do not strip empty sections.
+            self._tmp_extras_require[section]
+            for r in pkg_resources.parse_requirements(v):
+                suffix = self._suffix_for(r)
+                self._tmp_extras_require[section + suffix].append(r)
+
+    @staticmethod
+    def _suffix_for(req):
+        """
+        For a requirement, return the 'extras_require' suffix for
+        that requirement.
+        """
+        return ':' + str(req.marker) if req.marker else ''
+
+    def _move_install_requirements_markers(self):
+        """
+        Move requirements in `install_requires` that are using environment
+        markers `extras_require`.
+        """
+
+        # divide the install_requires into two sets, simple ones still
+        # handled by install_requires and more complex ones handled
+        # by extras_require.
+
+        def is_simple_req(req):
+            return not req.marker
+
+        spec_inst_reqs = getattr(self, 'install_requires', None) or ()
+        inst_reqs = list(pkg_resources.parse_requirements(spec_inst_reqs))
+        simple_reqs = filter(is_simple_req, inst_reqs)
+        complex_reqs = filterfalse(is_simple_req, inst_reqs)
+        self.install_requires = list(map(str, simple_reqs))
+
+        for r in complex_reqs:
+            self._tmp_extras_require[':' + str(r.marker)].append(r)
+        self.extras_require = dict(
+            (k, [str(r) for r in map(self._clean_req, v)])
+            for k, v in self._tmp_extras_require.items()
+        )
+
+    def _clean_req(self, req):
+        """
+        Given a Requirement, remove environment markers and return it.
+        """
+        req.marker = None
+        return req
+
+    def parse_config_files(self, filenames=None, ignore_option_errors=False):
+        """Parses configuration files from various levels
+        and loads configuration.
+
+        """
+        _Distribution.parse_config_files(self, filenames=filenames)
+
+        parse_configuration(self, self.command_options,
+                            ignore_option_errors=ignore_option_errors)
+        self._finalize_requires()
+
+    def parse_command_line(self):
+        """Process features after parsing command line options"""
+        result = _Distribution.parse_command_line(self)
+        if self.features:
+            self._finalize_features()
+        return result
+
+    def _feature_attrname(self, name):
+        """Convert feature name to corresponding option attribute name"""
+        return 'with_' + name.replace('-', '_')
+
+    def fetch_build_eggs(self, requires):
+        """Resolve pre-setup requirements"""
+        resolved_dists = pkg_resources.working_set.resolve(
+            pkg_resources.parse_requirements(requires),
+            installer=self.fetch_build_egg,
+            replace_conflicting=True,
+        )
+        for dist in resolved_dists:
+            pkg_resources.working_set.add(dist, replace=True)
+        return resolved_dists
+
+    def finalize_options(self):
+        _Distribution.finalize_options(self)
+        if self.features:
+            self._set_global_opts_from_features()
+
+        for ep in pkg_resources.iter_entry_points('distutils.setup_keywords'):
+            value = getattr(self, ep.name, None)
+            if value is not None:
+                ep.require(installer=self.fetch_build_egg)
+                ep.load()(self, ep.name, value)
+        if getattr(self, 'convert_2to3_doctests', None):
+            # XXX may convert to set here when we can rely on set being builtin
+            self.convert_2to3_doctests = [
+                os.path.abspath(p)
+                for p in self.convert_2to3_doctests
+            ]
+        else:
+            self.convert_2to3_doctests = []
+
+    def get_egg_cache_dir(self):
+        egg_cache_dir = os.path.join(os.curdir, '.eggs')
+        if not os.path.exists(egg_cache_dir):
+            os.mkdir(egg_cache_dir)
+            windows_support.hide_file(egg_cache_dir)
+            readme_txt_filename = os.path.join(egg_cache_dir, 'README.txt')
+            with open(readme_txt_filename, 'w') as f:
+                f.write('This directory contains eggs that were downloaded '
+                        'by setuptools to build, test, and run plug-ins.\n\n')
+                f.write('This directory caches those eggs to prevent '
+                        'repeated downloads.\n\n')
+                f.write('However, it is safe to delete this directory.\n\n')
+
+        return egg_cache_dir
+
+    def fetch_build_egg(self, req):
+        """Fetch an egg needed for building"""
+        from setuptools.command.easy_install import easy_install
+        dist = self.__class__({'script_args': ['easy_install']})
+        opts = dist.get_option_dict('easy_install')
+        opts.clear()
+        opts.update(
+            (k, v)
+            for k, v in self.get_option_dict('easy_install').items()
+            if k in (
+                # don't use any other settings
+                'find_links', 'site_dirs', 'index_url',
+                'optimize', 'site_dirs', 'allow_hosts',
+        ))
+        if self.dependency_links:
+            links = self.dependency_links[:]
+            if 'find_links' in opts:
+                links = opts['find_links'][1] + links
+            opts['find_links'] = ('setup', links)
+        install_dir = self.get_egg_cache_dir()
+        cmd = easy_install(
+            dist, args=["x"], install_dir=install_dir,
+            exclude_scripts=True,
+            always_copy=False, build_directory=None, editable=False,
+            upgrade=False, multi_version=True, no_report=True, user=False
+        )
+        cmd.ensure_finalized()
+        return cmd.easy_install(req)
+
+    def _set_global_opts_from_features(self):
+        """Add --with-X/--without-X options based on optional features"""
+
+        go = []
+        no = self.negative_opt.copy()
+
+        for name, feature in self.features.items():
+            self._set_feature(name, None)
+            feature.validate(self)
+
+            if feature.optional:
+                descr = feature.description
+                incdef = ' (default)'
+                excdef = ''
+                if not feature.include_by_default():
+                    excdef, incdef = incdef, excdef
+
+                new = (
+                    ('with-' + name, None, 'include ' + descr + incdef),
+                    ('without-' + name, None, 'exclude ' + descr + excdef),
+                )
+                go.extend(new)
+                no['without-' + name] = 'with-' + name
+
+        self.global_options = self.feature_options = go + self.global_options
+        self.negative_opt = self.feature_negopt = no
+
+    def _finalize_features(self):
+        """Add/remove features and resolve dependencies between them"""
+
+        # First, flag all the enabled items (and thus their dependencies)
+        for name, feature in self.features.items():
+            enabled = self.feature_is_included(name)
+            if enabled or (enabled is None and feature.include_by_default()):
+                feature.include_in(self)
+                self._set_feature(name, 1)
+
+        # Then disable the rest, so that off-by-default features don't
+        # get flagged as errors when they're required by an enabled feature
+        for name, feature in self.features.items():
+            if not self.feature_is_included(name):
+                feature.exclude_from(self)
+                self._set_feature(name, 0)
+
+    def get_command_class(self, command):
+        """Pluggable version of get_command_class()"""
+        if command in self.cmdclass:
+            return self.cmdclass[command]
+
+        eps = pkg_resources.iter_entry_points('distutils.commands', command)
+        for ep in eps:
+            ep.require(installer=self.fetch_build_egg)
+            self.cmdclass[command] = cmdclass = ep.load()
+            return cmdclass
+        else:
+            return _Distribution.get_command_class(self, command)
+
+    def print_commands(self):
+        for ep in pkg_resources.iter_entry_points('distutils.commands'):
+            if ep.name not in self.cmdclass:
+                # don't require extras as the commands won't be invoked
+                cmdclass = ep.resolve()
+                self.cmdclass[ep.name] = cmdclass
+        return _Distribution.print_commands(self)
+
+    def get_command_list(self):
+        for ep in pkg_resources.iter_entry_points('distutils.commands'):
+            if ep.name not in self.cmdclass:
+                # don't require extras as the commands won't be invoked
+                cmdclass = ep.resolve()
+                self.cmdclass[ep.name] = cmdclass
+        return _Distribution.get_command_list(self)
+
+    def _set_feature(self, name, status):
+        """Set feature's inclusion status"""
+        setattr(self, self._feature_attrname(name), status)
+
+    def feature_is_included(self, name):
+        """Return 1 if feature is included, 0 if excluded, 'None' if unknown"""
+        return getattr(self, self._feature_attrname(name))
+
+    def include_feature(self, name):
+        """Request inclusion of feature named 'name'"""
+
+        if self.feature_is_included(name) == 0:
+            descr = self.features[name].description
+            raise DistutilsOptionError(
+                descr + " is required, but was excluded or is not available"
+            )
+        self.features[name].include_in(self)
+        self._set_feature(name, 1)
+
+    def include(self, **attrs):
+        """Add items to distribution that are named in keyword arguments
+
+        For example, 'dist.exclude(py_modules=["x"])' would add 'x' to
+        the distribution's 'py_modules' attribute, if it was not already
+        there.
+
+        Currently, this method only supports inclusion for attributes that are
+        lists or tuples.  If you need to add support for adding to other
+        attributes in this or a subclass, you can add an '_include_X' method,
+        where 'X' is the name of the attribute.  The method will be called with
+        the value passed to 'include()'.  So, 'dist.include(foo={"bar":"baz"})'
+        will try to call 'dist._include_foo({"bar":"baz"})', which can then
+        handle whatever special inclusion logic is needed.
+        """
+        for k, v in attrs.items():
+            include = getattr(self, '_include_' + k, None)
+            if include:
+                include(v)
+            else:
+                self._include_misc(k, v)
+
+    def exclude_package(self, package):
+        """Remove packages, modules, and extensions in named package"""
+
+        pfx = package + '.'
+        if self.packages:
+            self.packages = [
+                p for p in self.packages
+                if p != package and not p.startswith(pfx)
+            ]
+
+        if self.py_modules:
+            self.py_modules = [
+                p for p in self.py_modules
+                if p != package and not p.startswith(pfx)
+            ]
+
+        if self.ext_modules:
+            self.ext_modules = [
+                p for p in self.ext_modules
+                if p.name != package and not p.name.startswith(pfx)
+            ]
+
+    def has_contents_for(self, package):
+        """Return true if 'exclude_package(package)' would do something"""
+
+        pfx = package + '.'
+
+        for p in self.iter_distribution_names():
+            if p == package or p.startswith(pfx):
+                return True
+
+    def _exclude_misc(self, name, value):
+        """Handle 'exclude()' for list/tuple attrs without a special handler"""
+        if not isinstance(value, sequence):
+            raise DistutilsSetupError(
+                "%s: setting must be a list or tuple (%r)" % (name, value)
+            )
+        try:
+            old = getattr(self, name)
+        except AttributeError:
+            raise DistutilsSetupError(
+                "%s: No such distribution setting" % name
+            )
+        if old is not None and not isinstance(old, sequence):
+            raise DistutilsSetupError(
+                name + ": this setting cannot be changed via include/exclude"
+            )
+        elif old:
+            setattr(self, name, [item for item in old if item not in value])
+
+    def _include_misc(self, name, value):
+        """Handle 'include()' for list/tuple attrs without a special handler"""
+
+        if not isinstance(value, sequence):
+            raise DistutilsSetupError(
+                "%s: setting must be a list (%r)" % (name, value)
+            )
+        try:
+            old = getattr(self, name)
+        except AttributeError:
+            raise DistutilsSetupError(
+                "%s: No such distribution setting" % name
+            )
+        if old is None:
+            setattr(self, name, value)
+        elif not isinstance(old, sequence):
+            raise DistutilsSetupError(
+                name + ": this setting cannot be changed via include/exclude"
+            )
+        else:
+            new = [item for item in value if item not in old]
+            setattr(self, name, old + new)
+
+    def exclude(self, **attrs):
+        """Remove items from distribution that are named in keyword arguments
+
+        For example, 'dist.exclude(py_modules=["x"])' would remove 'x' from
+        the distribution's 'py_modules' attribute.  Excluding packages uses
+        the 'exclude_package()' method, so all of the package's contained
+        packages, modules, and extensions are also excluded.
+
+        Currently, this method only supports exclusion from attributes that are
+        lists or tuples.  If you need to add support for excluding from other
+        attributes in this or a subclass, you can add an '_exclude_X' method,
+        where 'X' is the name of the attribute.  The method will be called with
+        the value passed to 'exclude()'.  So, 'dist.exclude(foo={"bar":"baz"})'
+        will try to call 'dist._exclude_foo({"bar":"baz"})', which can then
+        handle whatever special exclusion logic is needed.
+        """
+        for k, v in attrs.items():
+            exclude = getattr(self, '_exclude_' + k, None)
+            if exclude:
+                exclude(v)
+            else:
+                self._exclude_misc(k, v)
+
+    def _exclude_packages(self, packages):
+        if not isinstance(packages, sequence):
+            raise DistutilsSetupError(
+                "packages: setting must be a list or tuple (%r)" % (packages,)
+            )
+        list(map(self.exclude_package, packages))
+
+    def _parse_command_opts(self, parser, args):
+        # Remove --with-X/--without-X options when processing command args
+        self.global_options = self.__class__.global_options
+        self.negative_opt = self.__class__.negative_opt
+
+        # First, expand any aliases
+        command = args[0]
+        aliases = self.get_option_dict('aliases')
+        while command in aliases:
+            src, alias = aliases[command]
+            del aliases[command]  # ensure each alias can expand only once!
+            import shlex
+            args[:1] = shlex.split(alias, True)
+            command = args[0]
+
+        nargs = _Distribution._parse_command_opts(self, parser, args)
+
+        # Handle commands that want to consume all remaining arguments
+        cmd_class = self.get_command_class(command)
+        if getattr(cmd_class, 'command_consumes_arguments', None):
+            self.get_option_dict(command)['args'] = ("command line", nargs)
+            if nargs is not None:
+                return []
+
+        return nargs
+
+    def get_cmdline_options(self):
+        """Return a '{cmd: {opt:val}}' map of all command-line options
+
+        Option names are all long, but do not include the leading '--', and
+        contain dashes rather than underscores.  If the option doesn't take
+        an argument (e.g. '--quiet'), the 'val' is 'None'.
+
+        Note that options provided by config files are intentionally excluded.
+        """
+
+        d = {}
+
+        for cmd, opts in self.command_options.items():
+
+            for opt, (src, val) in opts.items():
+
+                if src != "command line":
+                    continue
+
+                opt = opt.replace('_', '-')
+
+                if val == 0:
+                    cmdobj = self.get_command_obj(cmd)
+                    neg_opt = self.negative_opt.copy()
+                    neg_opt.update(getattr(cmdobj, 'negative_opt', {}))
+                    for neg, pos in neg_opt.items():
+                        if pos == opt:
+                            opt = neg
+                            val = None
+                            break
+                    else:
+                        raise AssertionError("Shouldn't be able to get here")
+
+                elif val == 1:
+                    val = None
+
+                d.setdefault(cmd, {})[opt] = val
+
+        return d
+
+    def iter_distribution_names(self):
+        """Yield all packages, modules, and extension names in distribution"""
+
+        for pkg in self.packages or ():
+            yield pkg
+
+        for module in self.py_modules or ():
+            yield module
+
+        for ext in self.ext_modules or ():
+            if isinstance(ext, tuple):
+                name, buildinfo = ext
+            else:
+                name = ext.name
+            if name.endswith('module'):
+                name = name[:-6]
+            yield name
+
+    def handle_display_options(self, option_order):
+        """If there were any non-global "display-only" options
+        (--help-commands or the metadata display options) on the command
+        line, display the requested info and return true; else return
+        false.
+        """
+        import sys
+
+        if six.PY2 or self.help_commands:
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Stdout may be StringIO (e.g. in tests)
+        import io
+        if not isinstance(sys.stdout, io.TextIOWrapper):
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Don't wrap stdout if utf-8 is already the encoding. Provides
+        #  workaround for #334.
+        if sys.stdout.encoding.lower() in ('utf-8', 'utf8'):
+            return _Distribution.handle_display_options(self, option_order)
+
+        # Print metadata in UTF-8 no matter the platform
+        encoding = sys.stdout.encoding
+        errors = sys.stdout.errors
+        newline = sys.platform != 'win32' and '\n' or None
+        line_buffering = sys.stdout.line_buffering
+
+        sys.stdout = io.TextIOWrapper(
+            sys.stdout.detach(), 'utf-8', errors, newline, line_buffering)
+        try:
+            return _Distribution.handle_display_options(self, option_order)
+        finally:
+            sys.stdout = io.TextIOWrapper(
+                sys.stdout.detach(), encoding, errors, newline, line_buffering)
+
+
+class Feature:
+    """
+    **deprecated** -- The `Feature` facility was never completely implemented
+    or supported, `has reported issues
+    <https://github.com/pypa/setuptools/issues/58>`_ and will be removed in
+    a future version.
+
+    A subset of the distribution that can be excluded if unneeded/wanted
+
+    Features are created using these keyword arguments:
+
+      'description' -- a short, human readable description of the feature, to
+         be used in error messages, and option help messages.
+
+      'standard' -- if true, the feature is included by default if it is
+         available on the current system.  Otherwise, the feature is only
+         included if requested via a command line '--with-X' option, or if
+         another included feature requires it.  The default setting is 'False'.
+
+      'available' -- if true, the feature is available for installation on the
+         current system.  The default setting is 'True'.
+
+      'optional' -- if true, the feature's inclusion can be controlled from the
+         command line, using the '--with-X' or '--without-X' options.  If
+         false, the feature's inclusion status is determined automatically,
+         based on 'availabile', 'standard', and whether any other feature
+         requires it.  The default setting is 'True'.
+
+      'require_features' -- a string or sequence of strings naming features
+         that should also be included if this feature is included.  Defaults to
+         empty list.  May also contain 'Require' objects that should be
+         added/removed from the distribution.
+
+      'remove' -- a string or list of strings naming packages to be removed
+         from the distribution if this feature is *not* included.  If the
+         feature *is* included, this argument is ignored.  This argument exists
+         to support removing features that "crosscut" a distribution, such as
+         defining a 'tests' feature that removes all the 'tests' subpackages
+         provided by other features.  The default for this argument is an empty
+         list.  (Note: the named package(s) or modules must exist in the base
+         distribution when the 'setup()' function is initially called.)
+
+      other keywords -- any other keyword arguments are saved, and passed to
+         the distribution's 'include()' and 'exclude()' methods when the
+         feature is included or excluded, respectively.  So, for example, you
+         could pass 'packages=["a","b"]' to cause packages 'a' and 'b' to be
+         added or removed from the distribution as appropriate.
+
+    A feature must include at least one 'requires', 'remove', or other
+    keyword argument.  Otherwise, it can't affect the distribution in any way.
+    Note also that you can subclass 'Feature' to create your own specialized
+    feature types that modify the distribution in other ways when included or
+    excluded.  See the docstrings for the various methods here for more detail.
+    Aside from the methods, the only feature attributes that distributions look
+    at are 'description' and 'optional'.
+    """
+
+    @staticmethod
+    def warn_deprecated():
+        msg = (
+            "Features are deprecated and will be removed in a future "
+            "version. See https://github.com/pypa/setuptools/issues/65."
+        )
+        warnings.warn(msg, DeprecationWarning, stacklevel=3)
+
+    def __init__(
+            self, description, standard=False, available=True,
+            optional=True, require_features=(), remove=(), **extras):
+        self.warn_deprecated()
+
+        self.description = description
+        self.standard = standard
+        self.available = available
+        self.optional = optional
+        if isinstance(require_features, (str, Require)):
+            require_features = require_features,
+
+        self.require_features = [
+            r for r in require_features if isinstance(r, str)
+        ]
+        er = [r for r in require_features if not isinstance(r, str)]
+        if er:
+            extras['require_features'] = er
+
+        if isinstance(remove, str):
+            remove = remove,
+        self.remove = remove
+        self.extras = extras
+
+        if not remove and not require_features and not extras:
+            raise DistutilsSetupError(
+                "Feature %s: must define 'require_features', 'remove', or "
+                "at least one of 'packages', 'py_modules', etc."
+            )
+
+    def include_by_default(self):
+        """Should this feature be included by default?"""
+        return self.available and self.standard
+
+    def include_in(self, dist):
+        """Ensure feature and its requirements are included in distribution
+
+        You may override this in a subclass to perform additional operations on
+        the distribution.  Note that this method may be called more than once
+        per feature, and so should be idempotent.
+
+        """
+
+        if not self.available:
+            raise DistutilsPlatformError(
+                self.description + " is required, "
+                "but is not available on this platform"
+            )
+
+        dist.include(**self.extras)
+
+        for f in self.require_features:
+            dist.include_feature(f)
+
+    def exclude_from(self, dist):
+        """Ensure feature is excluded from distribution
+
+        You may override this in a subclass to perform additional operations on
+        the distribution.  This method will be called at most once per
+        feature, and only after all included features have been asked to
+        include themselves.
+        """
+
+        dist.exclude(**self.extras)
+
+        if self.remove:
+            for item in self.remove:
+                dist.exclude_package(item)
+
+    def validate(self, dist):
+        """Verify that feature makes sense in context of distribution
+
+        This method is called by the distribution just before it parses its
+        command line.  It checks to ensure that the 'remove' attribute, if any,
+        contains only valid package/module names that are present in the base
+        distribution when 'setup()' is called.  You may override it in a
+        subclass to perform any other required validation of the feature
+        against a target distribution.
+        """
+
+        for item in self.remove:
+            if not dist.has_contents_for(item):
+                raise DistutilsSetupError(
+                    "%s wants to be able to remove %s, but the distribution"
+                    " doesn't contain any packages or modules under %s"
+                    % (self.description, item, item)
+                )
diff --git a/venv1/lib/python3.5/site-packages/setuptools/extension.py b/venv1/lib/python3.5/site-packages/setuptools/extension.py
new file mode 100644
index 0000000..2946889
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/extension.py
@@ -0,0 +1,57 @@
+import re
+import functools
+import distutils.core
+import distutils.errors
+import distutils.extension
+
+from setuptools.extern.six.moves import map
+
+from .monkey import get_unpatched
+
+
+def _have_cython():
+    """
+    Return True if Cython can be imported.
+    """
+    cython_impl = 'Cython.Distutils.build_ext'
+    try:
+        # from (cython_impl) import build_ext
+        __import__(cython_impl, fromlist=['build_ext']).build_ext
+        return True
+    except Exception:
+        pass
+    return False
+
+
+# for compatibility
+have_pyrex = _have_cython
+
+_Extension = get_unpatched(distutils.core.Extension)
+
+
+class Extension(_Extension):
+    """Extension that uses '.c' files in place of '.pyx' files"""
+
+    def __init__(self, name, sources, *args, **kw):
+        # The *args is needed for compatibility as calls may use positional
+        # arguments. py_limited_api may be set only via keyword.
+        self.py_limited_api = kw.pop("py_limited_api", False)
+        _Extension.__init__(self, name, sources, *args, **kw)
+
+    def _convert_pyx_sources_to_lang(self):
+        """
+        Replace sources with .pyx extensions to sources with the target
+        language extension. This mechanism allows language authors to supply
+        pre-converted sources but to prefer the .pyx sources.
+        """
+        if _have_cython():
+            # the build has Cython, so allow it to compile the .pyx files
+            return
+        lang = self.language or ''
+        target_ext = '.cpp' if lang.lower() == 'c++' else '.c'
+        sub = functools.partial(re.sub, '.pyx$', target_ext)
+        self.sources = list(map(sub, self.sources))
+
+
+class Library(Extension):
+    """Just like a regular Extension, but built as a library instead"""
diff --git a/venv1/lib/python3.5/site-packages/setuptools/extern/__init__.py b/venv1/lib/python3.5/site-packages/setuptools/extern/__init__.py
new file mode 100644
index 0000000..2cd08b7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/extern/__init__.py
@@ -0,0 +1,4 @@
+from pkg_resources.extern import VendorImporter
+
+names = 'six',
+VendorImporter(__name__, names, 'pkg_resources._vendor').install()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..c57e937
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/setuptools/extern/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/setuptools/glibc.py b/venv1/lib/python3.5/site-packages/setuptools/glibc.py
new file mode 100644
index 0000000..a134591
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/glibc.py
@@ -0,0 +1,86 @@
+# This file originally from pip:
+# https://github.com/pypa/pip/blob/8f4f15a5a95d7d5b511ceaee9ed261176c181970/src/pip/_internal/utils/glibc.py
+from __future__ import absolute_import
+
+import ctypes
+import re
+import warnings
+
+
+def glibc_version_string():
+    "Returns glibc version string, or None if not using glibc."
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    process_namespace = ctypes.CDLL(None)
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+# Separated out from have_compatible_glibc for easier unit testing
+def check_glibc_version(version_str, required_major, minimum_minor):
+    # Parse string and check against requested version.
+    #
+    # We use a regexp instead of str.split because we want to discard any
+    # random junk that might come after the minor version -- this might happen
+    # in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    # uses version strings like "2.20-2014.11"). See gh-3588.
+    m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
+    if not m:
+        warnings.warn("Expected glibc version with 2 components major.minor,"
+                      " got: %s" % version_str, RuntimeWarning)
+        return False
+    return (int(m.group("major")) == required_major and
+            int(m.group("minor")) >= minimum_minor)
+
+
+def have_compatible_glibc(required_major, minimum_minor):
+    version_str = glibc_version_string()
+    if version_str is None:
+        return False
+    return check_glibc_version(version_str, required_major, minimum_minor)
+
+
+# platform.libc_ver regularly returns completely nonsensical glibc
+# versions. E.g. on my computer, platform says:
+#
+#   ~$ python2.7 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.7')
+#   ~$ python3.5 -c 'import platform; print(platform.libc_ver())'
+#   ('glibc', '2.9')
+#
+# But the truth is:
+#
+#   ~$ ldd --version
+#   ldd (Debian GLIBC 2.22-11) 2.22
+#
+# This is unfortunate, because it means that the linehaul data on libc
+# versions that was generated by pip 8.1.2 and earlier is useless and
+# misleading. Solution: instead of using platform, use our code that actually
+# works.
+def libc_ver():
+    """Try to determine the glibc version
+
+    Returns a tuple of strings (lib, version) which default to empty strings
+    in case the lookup fails.
+    """
+    glibc_version = glibc_version_string()
+    if glibc_version is None:
+        return ("", "")
+    else:
+        return ("glibc", glibc_version)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/glob.py b/venv1/lib/python3.5/site-packages/setuptools/glob.py
new file mode 100644
index 0000000..6c781de
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/glob.py
@@ -0,0 +1,176 @@
+"""
+Filename globbing utility. Mostly a copy of `glob` from Python 3.5.
+
+Changes include:
+ * `yield from` and PEP3102 `*` removed.
+ * `bytes` changed to `six.binary_type`.
+ * Hidden files are not ignored.
+"""
+
+import os
+import re
+import fnmatch
+from setuptools.extern.six import binary_type
+
+__all__ = ["glob", "iglob", "escape"]
+
+
+def glob(pathname, recursive=False):
+    """Return a list of paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    return list(iglob(pathname, recursive=recursive))
+
+
+def iglob(pathname, recursive=False):
+    """Return an iterator which yields the paths matching a pathname pattern.
+
+    The pattern may contain simple shell-style wildcards a la
+    fnmatch. However, unlike fnmatch, filenames starting with a
+    dot are special cases that are not matched by '*' and '?'
+    patterns.
+
+    If recursive is true, the pattern '**' will match any files and
+    zero or more directories and subdirectories.
+    """
+    it = _iglob(pathname, recursive)
+    if recursive and _isrecursive(pathname):
+        s = next(it)  # skip empty string
+        assert not s
+    return it
+
+
+def _iglob(pathname, recursive):
+    dirname, basename = os.path.split(pathname)
+    if not has_magic(pathname):
+        if basename:
+            if os.path.lexists(pathname):
+                yield pathname
+        else:
+            # Patterns ending with a slash should match only directories
+            if os.path.isdir(dirname):
+                yield pathname
+        return
+    if not dirname:
+        if recursive and _isrecursive(basename):
+            for x in glob2(dirname, basename):
+                yield x
+        else:
+            for x in glob1(dirname, basename):
+                yield x
+        return
+    # `os.path.split()` returns the argument itself as a dirname if it is a
+    # drive or UNC path.  Prevent an infinite recursion if a drive or UNC path
+    # contains magic characters (i.e. r'\\?\C:').
+    if dirname != pathname and has_magic(dirname):
+        dirs = _iglob(dirname, recursive)
+    else:
+        dirs = [dirname]
+    if has_magic(basename):
+        if recursive and _isrecursive(basename):
+            glob_in_dir = glob2
+        else:
+            glob_in_dir = glob1
+    else:
+        glob_in_dir = glob0
+    for dirname in dirs:
+        for name in glob_in_dir(dirname, basename):
+            yield os.path.join(dirname, name)
+
+
+# These 2 helper functions non-recursively glob inside a literal directory.
+# They return a list of basenames. `glob1` accepts a pattern while `glob0`
+# takes a literal basename (so it only has to check for its existence).
+
+
+def glob1(dirname, pattern):
+    if not dirname:
+        if isinstance(pattern, binary_type):
+            dirname = os.curdir.encode('ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except OSError:
+        return []
+    return fnmatch.filter(names, pattern)
+
+
+def glob0(dirname, basename):
+    if not basename:
+        # `os.path.split()` returns an empty basename for paths ending with a
+        # directory separator.  'q*x/' should match only directories.
+        if os.path.isdir(dirname):
+            return [basename]
+    else:
+        if os.path.lexists(os.path.join(dirname, basename)):
+            return [basename]
+    return []
+
+
+# This helper function recursively yields relative pathnames inside a literal
+# directory.
+
+
+def glob2(dirname, pattern):
+    assert _isrecursive(pattern)
+    yield pattern[:0]
+    for x in _rlistdir(dirname):
+        yield x
+
+
+# Recursively yields relative pathnames inside a literal directory.
+def _rlistdir(dirname):
+    if not dirname:
+        if isinstance(dirname, binary_type):
+            dirname = binary_type(os.curdir, 'ASCII')
+        else:
+            dirname = os.curdir
+    try:
+        names = os.listdir(dirname)
+    except os.error:
+        return
+    for x in names:
+        yield x
+        path = os.path.join(dirname, x) if dirname else x
+        for y in _rlistdir(path):
+            yield os.path.join(x, y)
+
+
+magic_check = re.compile('([*?[])')
+magic_check_bytes = re.compile(b'([*?[])')
+
+
+def has_magic(s):
+    if isinstance(s, binary_type):
+        match = magic_check_bytes.search(s)
+    else:
+        match = magic_check.search(s)
+    return match is not None
+
+
+def _isrecursive(pattern):
+    if isinstance(pattern, binary_type):
+        return pattern == b'**'
+    else:
+        return pattern == '**'
+
+
+def escape(pathname):
+    """Escape all special characters.
+    """
+    # Escaping is done by wrapping any of "*?[" between square brackets.
+    # Metacharacters do not work in the drive part and shouldn't be escaped.
+    drive, pathname = os.path.splitdrive(pathname)
+    if isinstance(pathname, binary_type):
+        pathname = magic_check_bytes.sub(br'[\1]', pathname)
+    else:
+        pathname = magic_check.sub(r'[\1]', pathname)
+    return drive + pathname
diff --git a/venv1/lib/python3.5/site-packages/setuptools/gui-32.exe b/venv1/lib/python3.5/site-packages/setuptools/gui-32.exe
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diff --git a/venv1/lib/python3.5/site-packages/setuptools/gui.exe b/venv1/lib/python3.5/site-packages/setuptools/gui.exe
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diff --git a/venv1/lib/python3.5/site-packages/setuptools/launch.py b/venv1/lib/python3.5/site-packages/setuptools/launch.py
new file mode 100644
index 0000000..308283e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/launch.py
@@ -0,0 +1,35 @@
+"""
+Launch the Python script on the command line after
+setuptools is bootstrapped via import.
+"""
+
+# Note that setuptools gets imported implicitly by the
+# invocation of this script using python -m setuptools.launch
+
+import tokenize
+import sys
+
+
+def run():
+    """
+    Run the script in sys.argv[1] as if it had
+    been invoked naturally.
+    """
+    __builtins__
+    script_name = sys.argv[1]
+    namespace = dict(
+        __file__=script_name,
+        __name__='__main__',
+        __doc__=None,
+    )
+    sys.argv[:] = sys.argv[1:]
+
+    open_ = getattr(tokenize, 'open', open)
+    script = open_(script_name).read()
+    norm_script = script.replace('\\r\\n', '\\n')
+    code = compile(norm_script, script_name, 'exec')
+    exec(code, namespace)
+
+
+if __name__ == '__main__':
+    run()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/lib2to3_ex.py b/venv1/lib/python3.5/site-packages/setuptools/lib2to3_ex.py
new file mode 100644
index 0000000..4b1a73f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/lib2to3_ex.py
@@ -0,0 +1,62 @@
+"""
+Customized Mixin2to3 support:
+
+ - adds support for converting doctests
+
+
+This module raises an ImportError on Python 2.
+"""
+
+from distutils.util import Mixin2to3 as _Mixin2to3
+from distutils import log
+from lib2to3.refactor import RefactoringTool, get_fixers_from_package
+
+import setuptools
+
+
+class DistutilsRefactoringTool(RefactoringTool):
+    def log_error(self, msg, *args, **kw):
+        log.error(msg, *args)
+
+    def log_message(self, msg, *args):
+        log.info(msg, *args)
+
+    def log_debug(self, msg, *args):
+        log.debug(msg, *args)
+
+
+class Mixin2to3(_Mixin2to3):
+    def run_2to3(self, files, doctests=False):
+        # See of the distribution option has been set, otherwise check the
+        # setuptools default.
+        if self.distribution.use_2to3 is not True:
+            return
+        if not files:
+            return
+        log.info("Fixing " + " ".join(files))
+        self.__build_fixer_names()
+        self.__exclude_fixers()
+        if doctests:
+            if setuptools.run_2to3_on_doctests:
+                r = DistutilsRefactoringTool(self.fixer_names)
+                r.refactor(files, write=True, doctests_only=True)
+        else:
+            _Mixin2to3.run_2to3(self, files)
+
+    def __build_fixer_names(self):
+        if self.fixer_names:
+            return
+        self.fixer_names = []
+        for p in setuptools.lib2to3_fixer_packages:
+            self.fixer_names.extend(get_fixers_from_package(p))
+        if self.distribution.use_2to3_fixers is not None:
+            for p in self.distribution.use_2to3_fixers:
+                self.fixer_names.extend(get_fixers_from_package(p))
+
+    def __exclude_fixers(self):
+        excluded_fixers = getattr(self, 'exclude_fixers', [])
+        if self.distribution.use_2to3_exclude_fixers is not None:
+            excluded_fixers.extend(self.distribution.use_2to3_exclude_fixers)
+        for fixer_name in excluded_fixers:
+            if fixer_name in self.fixer_names:
+                self.fixer_names.remove(fixer_name)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/monkey.py b/venv1/lib/python3.5/site-packages/setuptools/monkey.py
new file mode 100644
index 0000000..d9eb7d7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/monkey.py
@@ -0,0 +1,197 @@
+"""
+Monkey patching of distutils.
+"""
+
+import sys
+import distutils.filelist
+import platform
+import types
+import functools
+from importlib import import_module
+import inspect
+
+from setuptools.extern import six
+
+import setuptools
+
+__all__ = []
+"""
+Everything is private. Contact the project team
+if you think you need this functionality.
+"""
+
+
+def _get_mro(cls):
+    """
+    Returns the bases classes for cls sorted by the MRO.
+
+    Works around an issue on Jython where inspect.getmro will not return all
+    base classes if multiple classes share the same name. Instead, this
+    function will return a tuple containing the class itself, and the contents
+    of cls.__bases__. See https://github.com/pypa/setuptools/issues/1024.
+    """
+    if platform.python_implementation() == "Jython":
+        return (cls,) + cls.__bases__
+    return inspect.getmro(cls)
+
+
+def get_unpatched(item):
+    lookup = (
+        get_unpatched_class if isinstance(item, six.class_types) else
+        get_unpatched_function if isinstance(item, types.FunctionType) else
+        lambda item: None
+    )
+    return lookup(item)
+
+
+def get_unpatched_class(cls):
+    """Protect against re-patching the distutils if reloaded
+
+    Also ensures that no other distutils extension monkeypatched the distutils
+    first.
+    """
+    external_bases = (
+        cls
+        for cls in _get_mro(cls)
+        if not cls.__module__.startswith('setuptools')
+    )
+    base = next(external_bases)
+    if not base.__module__.startswith('distutils'):
+        msg = "distutils has already been patched by %r" % cls
+        raise AssertionError(msg)
+    return base
+
+
+def patch_all():
+    # we can't patch distutils.cmd, alas
+    distutils.core.Command = setuptools.Command
+
+    has_issue_12885 = sys.version_info <= (3, 5, 3)
+
+    if has_issue_12885:
+        # fix findall bug in distutils (http://bugs.python.org/issue12885)
+        distutils.filelist.findall = setuptools.findall
+
+    needs_warehouse = (
+        sys.version_info < (2, 7, 13)
+        or
+        (3, 0) < sys.version_info < (3, 3, 7)
+        or
+        (3, 4) < sys.version_info < (3, 4, 6)
+        or
+        (3, 5) < sys.version_info <= (3, 5, 3)
+    )
+
+    if needs_warehouse:
+        warehouse = 'https://upload.pypi.org/legacy/'
+        distutils.config.PyPIRCCommand.DEFAULT_REPOSITORY = warehouse
+
+    _patch_distribution_metadata_write_pkg_file()
+    _patch_distribution_metadata_write_pkg_info()
+
+    # Install Distribution throughout the distutils
+    for module in distutils.dist, distutils.core, distutils.cmd:
+        module.Distribution = setuptools.dist.Distribution
+
+    # Install the patched Extension
+    distutils.core.Extension = setuptools.extension.Extension
+    distutils.extension.Extension = setuptools.extension.Extension
+    if 'distutils.command.build_ext' in sys.modules:
+        sys.modules['distutils.command.build_ext'].Extension = (
+            setuptools.extension.Extension
+        )
+
+    patch_for_msvc_specialized_compiler()
+
+
+def _patch_distribution_metadata_write_pkg_file():
+    """Patch write_pkg_file to also write Requires-Python/Requires-External"""
+    distutils.dist.DistributionMetadata.write_pkg_file = (
+        setuptools.dist.write_pkg_file
+    )
+
+
+def _patch_distribution_metadata_write_pkg_info():
+    """
+    Workaround issue #197 - Python 3 prior to 3.2.2 uses an environment-local
+    encoding to save the pkg_info. Monkey-patch its write_pkg_info method to
+    correct this undesirable behavior.
+    """
+    environment_local = (3,) <= sys.version_info[:3] < (3, 2, 2)
+    if not environment_local:
+        return
+
+    distutils.dist.DistributionMetadata.write_pkg_info = (
+        setuptools.dist.write_pkg_info
+    )
+
+
+def patch_func(replacement, target_mod, func_name):
+    """
+    Patch func_name in target_mod with replacement
+
+    Important - original must be resolved by name to avoid
+    patching an already patched function.
+    """
+    original = getattr(target_mod, func_name)
+
+    # set the 'unpatched' attribute on the replacement to
+    # point to the original.
+    vars(replacement).setdefault('unpatched', original)
+
+    # replace the function in the original module
+    setattr(target_mod, func_name, replacement)
+
+
+def get_unpatched_function(candidate):
+    return getattr(candidate, 'unpatched')
+
+
+def patch_for_msvc_specialized_compiler():
+    """
+    Patch functions in distutils to use standalone Microsoft Visual C++
+    compilers.
+    """
+    # import late to avoid circular imports on Python < 3.5
+    msvc = import_module('setuptools.msvc')
+
+    if platform.system() != 'Windows':
+        # Compilers only availables on Microsoft Windows
+        return
+
+    def patch_params(mod_name, func_name):
+        """
+        Prepare the parameters for patch_func to patch indicated function.
+        """
+        repl_prefix = 'msvc9_' if 'msvc9' in mod_name else 'msvc14_'
+        repl_name = repl_prefix + func_name.lstrip('_')
+        repl = getattr(msvc, repl_name)
+        mod = import_module(mod_name)
+        if not hasattr(mod, func_name):
+            raise ImportError(func_name)
+        return repl, mod, func_name
+
+    # Python 2.7 to 3.4
+    msvc9 = functools.partial(patch_params, 'distutils.msvc9compiler')
+
+    # Python 3.5+
+    msvc14 = functools.partial(patch_params, 'distutils._msvccompiler')
+
+    try:
+        # Patch distutils.msvc9compiler
+        patch_func(*msvc9('find_vcvarsall'))
+        patch_func(*msvc9('query_vcvarsall'))
+    except ImportError:
+        pass
+
+    try:
+        # Patch distutils._msvccompiler._get_vc_env
+        patch_func(*msvc14('_get_vc_env'))
+    except ImportError:
+        pass
+
+    try:
+        # Patch distutils._msvccompiler.gen_lib_options for Numpy
+        patch_func(*msvc14('gen_lib_options'))
+    except ImportError:
+        pass
diff --git a/venv1/lib/python3.5/site-packages/setuptools/msvc.py b/venv1/lib/python3.5/site-packages/setuptools/msvc.py
new file mode 100644
index 0000000..8e3b638
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/msvc.py
@@ -0,0 +1,1302 @@
+"""
+Improved support for Microsoft Visual C++ compilers.
+
+Known supported compilers:
+--------------------------
+Microsoft Visual C++ 9.0:
+    Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+    Microsoft Windows SDK 6.1 (x86, x64, ia64)
+    Microsoft Windows SDK 7.0 (x86, x64, ia64)
+
+Microsoft Visual C++ 10.0:
+    Microsoft Windows SDK 7.1 (x86, x64, ia64)
+
+Microsoft Visual C++ 14.0:
+    Microsoft Visual C++ Build Tools 2015 (x86, x64, arm)
+    Microsoft Visual Studio 2017 (x86, x64, arm, arm64)
+    Microsoft Visual Studio Build Tools 2017 (x86, x64, arm, arm64)
+"""
+
+import os
+import sys
+import platform
+import itertools
+import distutils.errors
+from pkg_resources.extern.packaging.version import LegacyVersion
+
+from setuptools.extern.six.moves import filterfalse
+
+from .monkey import get_unpatched
+
+if platform.system() == 'Windows':
+    from setuptools.extern.six.moves import winreg
+    safe_env = os.environ
+else:
+    """
+    Mock winreg and environ so the module can be imported
+    on this platform.
+    """
+
+    class winreg:
+        HKEY_USERS = None
+        HKEY_CURRENT_USER = None
+        HKEY_LOCAL_MACHINE = None
+        HKEY_CLASSES_ROOT = None
+
+    safe_env = dict()
+
+_msvc9_suppress_errors = (
+    # msvc9compiler isn't available on some platforms
+    ImportError,
+    
+    # msvc9compiler raises DistutilsPlatformError in some
+    # environments. See #1118.
+    distutils.errors.DistutilsPlatformError,
+)
+
+try:
+    from distutils.msvc9compiler import Reg
+except _msvc9_suppress_errors:
+    pass
+
+
+def msvc9_find_vcvarsall(version):
+    """
+    Patched "distutils.msvc9compiler.find_vcvarsall" to use the standalone
+    compiler build for Python (VCForPython). Fall back to original behavior
+    when the standalone compiler is not available.
+
+    Redirect the path of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 9.0:
+        Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+
+    Parameters
+    ----------
+    version: float
+        Required Microsoft Visual C++ version.
+
+    Return
+    ------
+    vcvarsall.bat path: str
+    """
+    VC_BASE = r'Software\%sMicrosoft\DevDiv\VCForPython\%0.1f'
+    key = VC_BASE % ('', version)
+    try:
+        # Per-user installs register the compiler path here
+        productdir = Reg.get_value(key, "installdir")
+    except KeyError:
+        try:
+            # All-user installs on a 64-bit system register here
+            key = VC_BASE % ('Wow6432Node\\', version)
+            productdir = Reg.get_value(key, "installdir")
+        except KeyError:
+            productdir = None
+
+    if productdir:
+        vcvarsall = os.path.os.path.join(productdir, "vcvarsall.bat")
+        if os.path.isfile(vcvarsall):
+            return vcvarsall
+
+    return get_unpatched(msvc9_find_vcvarsall)(version)
+
+
+def msvc9_query_vcvarsall(ver, arch='x86', *args, **kwargs):
+    """
+    Patched "distutils.msvc9compiler.query_vcvarsall" for support extra
+    compilers.
+
+    Set environment without use of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 9.0:
+        Microsoft Visual C++ Compiler for Python 2.7 (x86, amd64)
+        Microsoft Windows SDK 6.1 (x86, x64, ia64)
+        Microsoft Windows SDK 7.0 (x86, x64, ia64)
+
+    Microsoft Visual C++ 10.0:
+        Microsoft Windows SDK 7.1 (x86, x64, ia64)
+
+    Parameters
+    ----------
+    ver: float
+        Required Microsoft Visual C++ version.
+    arch: str
+        Target architecture.
+
+    Return
+    ------
+    environment: dict
+    """
+    # Try to get environement from vcvarsall.bat (Classical way)
+    try:
+        orig = get_unpatched(msvc9_query_vcvarsall)
+        return orig(ver, arch, *args, **kwargs)
+    except distutils.errors.DistutilsPlatformError:
+        # Pass error if Vcvarsall.bat is missing
+        pass
+    except ValueError:
+        # Pass error if environment not set after executing vcvarsall.bat
+        pass
+
+    # If error, try to set environment directly
+    try:
+        return EnvironmentInfo(arch, ver).return_env()
+    except distutils.errors.DistutilsPlatformError as exc:
+        _augment_exception(exc, ver, arch)
+        raise
+
+
+def msvc14_get_vc_env(plat_spec):
+    """
+    Patched "distutils._msvccompiler._get_vc_env" for support extra
+    compilers.
+
+    Set environment without use of "vcvarsall.bat".
+
+    Known supported compilers
+    -------------------------
+    Microsoft Visual C++ 14.0:
+        Microsoft Visual C++ Build Tools 2015 (x86, x64, arm)
+        Microsoft Visual Studio 2017 (x86, x64, arm, arm64)
+        Microsoft Visual Studio Build Tools 2017 (x86, x64, arm, arm64)
+
+    Parameters
+    ----------
+    plat_spec: str
+        Target architecture.
+
+    Return
+    ------
+    environment: dict
+    """
+    # Try to get environment from vcvarsall.bat (Classical way)
+    try:
+        return get_unpatched(msvc14_get_vc_env)(plat_spec)
+    except distutils.errors.DistutilsPlatformError:
+        # Pass error Vcvarsall.bat is missing
+        pass
+
+    # If error, try to set environment directly
+    try:
+        return EnvironmentInfo(plat_spec, vc_min_ver=14.0).return_env()
+    except distutils.errors.DistutilsPlatformError as exc:
+        _augment_exception(exc, 14.0)
+        raise
+
+
+def msvc14_gen_lib_options(*args, **kwargs):
+    """
+    Patched "distutils._msvccompiler.gen_lib_options" for fix
+    compatibility between "numpy.distutils" and "distutils._msvccompiler"
+    (for Numpy < 1.11.2)
+    """
+    if "numpy.distutils" in sys.modules:
+        import numpy as np
+        if LegacyVersion(np.__version__) < LegacyVersion('1.11.2'):
+            return np.distutils.ccompiler.gen_lib_options(*args, **kwargs)
+    return get_unpatched(msvc14_gen_lib_options)(*args, **kwargs)
+
+
+def _augment_exception(exc, version, arch=''):
+    """
+    Add details to the exception message to help guide the user
+    as to what action will resolve it.
+    """
+    # Error if MSVC++ directory not found or environment not set
+    message = exc.args[0]
+
+    if "vcvarsall" in message.lower() or "visual c" in message.lower():
+        # Special error message if MSVC++ not installed
+        tmpl = 'Microsoft Visual C++ {version:0.1f} is required.'
+        message = tmpl.format(**locals())
+        msdownload = 'www.microsoft.com/download/details.aspx?id=%d'
+        if version == 9.0:
+            if arch.lower().find('ia64') > -1:
+                # For VC++ 9.0, if IA64 support is needed, redirect user
+                # to Windows SDK 7.0
+                message += ' Get it with "Microsoft Windows SDK 7.0": '
+                message += msdownload % 3138
+            else:
+                # For VC++ 9.0 redirect user to Vc++ for Python 2.7 :
+                # This redirection link is maintained by Microsoft.
+                # Contact vspython@microsoft.com if it needs updating.
+                message += ' Get it from http://aka.ms/vcpython27'
+        elif version == 10.0:
+            # For VC++ 10.0 Redirect user to Windows SDK 7.1
+            message += ' Get it with "Microsoft Windows SDK 7.1": '
+            message += msdownload % 8279
+        elif version >= 14.0:
+            # For VC++ 14.0 Redirect user to Visual C++ Build Tools
+            message += (' Get it with "Microsoft Visual C++ Build Tools": '
+                        r'http://landinghub.visualstudio.com/'
+                        'visual-cpp-build-tools')
+
+    exc.args = (message, )
+
+
+class PlatformInfo:
+    """
+    Current and Target Architectures informations.
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    """
+    current_cpu = safe_env.get('processor_architecture', '').lower()
+
+    def __init__(self, arch):
+        self.arch = arch.lower().replace('x64', 'amd64')
+
+    @property
+    def target_cpu(self):
+        return self.arch[self.arch.find('_') + 1:]
+
+    def target_is_x86(self):
+        return self.target_cpu == 'x86'
+
+    def current_is_x86(self):
+        return self.current_cpu == 'x86'
+
+    def current_dir(self, hidex86=False, x64=False):
+        """
+        Current platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        subfolder: str
+            '\target', or '' (see hidex86 parameter)
+        """
+        return (
+            '' if (self.current_cpu == 'x86' and hidex86) else
+            r'\x64' if (self.current_cpu == 'amd64' and x64) else
+            r'\%s' % self.current_cpu
+        )
+
+    def target_dir(self, hidex86=False, x64=False):
+        r"""
+        Target platform specific subfolder.
+
+        Parameters
+        ----------
+        hidex86: bool
+            return '' and not '\x86' if architecture is x86.
+        x64: bool
+            return '\x64' and not '\amd64' if architecture is amd64.
+
+        Return
+        ------
+        subfolder: str
+            '\current', or '' (see hidex86 parameter)
+        """
+        return (
+            '' if (self.target_cpu == 'x86' and hidex86) else
+            r'\x64' if (self.target_cpu == 'amd64' and x64) else
+            r'\%s' % self.target_cpu
+        )
+
+    def cross_dir(self, forcex86=False):
+        r"""
+        Cross platform specific subfolder.
+
+        Parameters
+        ----------
+        forcex86: bool
+            Use 'x86' as current architecture even if current acritecture is
+            not x86.
+
+        Return
+        ------
+        subfolder: str
+            '' if target architecture is current architecture,
+            '\current_target' if not.
+        """
+        current = 'x86' if forcex86 else self.current_cpu
+        return (
+            '' if self.target_cpu == current else
+            self.target_dir().replace('\\', '\\%s_' % current)
+        )
+
+
+class RegistryInfo:
+    """
+    Microsoft Visual Studio related registry informations.
+
+    Parameters
+    ----------
+    platform_info: PlatformInfo
+        "PlatformInfo" instance.
+    """
+    HKEYS = (winreg.HKEY_USERS,
+             winreg.HKEY_CURRENT_USER,
+             winreg.HKEY_LOCAL_MACHINE,
+             winreg.HKEY_CLASSES_ROOT)
+
+    def __init__(self, platform_info):
+        self.pi = platform_info
+
+    @property
+    def visualstudio(self):
+        """
+        Microsoft Visual Studio root registry key.
+        """
+        return 'VisualStudio'
+
+    @property
+    def sxs(self):
+        """
+        Microsoft Visual Studio SxS registry key.
+        """
+        return os.path.join(self.visualstudio, 'SxS')
+
+    @property
+    def vc(self):
+        """
+        Microsoft Visual C++ VC7 registry key.
+        """
+        return os.path.join(self.sxs, 'VC7')
+
+    @property
+    def vs(self):
+        """
+        Microsoft Visual Studio VS7 registry key.
+        """
+        return os.path.join(self.sxs, 'VS7')
+
+    @property
+    def vc_for_python(self):
+        """
+        Microsoft Visual C++ for Python registry key.
+        """
+        return r'DevDiv\VCForPython'
+
+    @property
+    def microsoft_sdk(self):
+        """
+        Microsoft SDK registry key.
+        """
+        return 'Microsoft SDKs'
+
+    @property
+    def windows_sdk(self):
+        """
+        Microsoft Windows/Platform SDK registry key.
+        """
+        return os.path.join(self.microsoft_sdk, 'Windows')
+
+    @property
+    def netfx_sdk(self):
+        """
+        Microsoft .NET Framework SDK registry key.
+        """
+        return os.path.join(self.microsoft_sdk, 'NETFXSDK')
+
+    @property
+    def windows_kits_roots(self):
+        """
+        Microsoft Windows Kits Roots registry key.
+        """
+        return r'Windows Kits\Installed Roots'
+
+    def microsoft(self, key, x86=False):
+        """
+        Return key in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        x86: str
+            Force x86 software registry.
+
+        Return
+        ------
+        str: value
+        """
+        node64 = '' if self.pi.current_is_x86() or x86 else 'Wow6432Node'
+        return os.path.join('Software', node64, 'Microsoft', key)
+
+    def lookup(self, key, name):
+        """
+        Look for values in registry in Microsoft software registry.
+
+        Parameters
+        ----------
+        key: str
+            Registry key path where look.
+        name: str
+            Value name to find.
+
+        Return
+        ------
+        str: value
+        """
+        KEY_READ = winreg.KEY_READ
+        openkey = winreg.OpenKey
+        ms = self.microsoft
+        for hkey in self.HKEYS:
+            try:
+                bkey = openkey(hkey, ms(key), 0, KEY_READ)
+            except (OSError, IOError):
+                if not self.pi.current_is_x86():
+                    try:
+                        bkey = openkey(hkey, ms(key, True), 0, KEY_READ)
+                    except (OSError, IOError):
+                        continue
+                else:
+                    continue
+            try:
+                return winreg.QueryValueEx(bkey, name)[0]
+            except (OSError, IOError):
+                pass
+
+
+class SystemInfo:
+    """
+    Microsoft Windows and Visual Studio related system inormations.
+
+    Parameters
+    ----------
+    registry_info: RegistryInfo
+        "RegistryInfo" instance.
+    vc_ver: float
+        Required Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparaison.
+    WinDir = safe_env.get('WinDir', '')
+    ProgramFiles = safe_env.get('ProgramFiles', '')
+    ProgramFilesx86 = safe_env.get('ProgramFiles(x86)', ProgramFiles)
+
+    def __init__(self, registry_info, vc_ver=None):
+        self.ri = registry_info
+        self.pi = self.ri.pi
+        self.vc_ver = vc_ver or self._find_latest_available_vc_ver()
+
+    def _find_latest_available_vc_ver(self):
+        try:
+            return self.find_available_vc_vers()[-1]
+        except IndexError:
+            err = 'No Microsoft Visual C++ version found'
+            raise distutils.errors.DistutilsPlatformError(err)
+
+    def find_available_vc_vers(self):
+        """
+        Find all available Microsoft Visual C++ versions.
+        """
+        ms = self.ri.microsoft
+        vckeys = (self.ri.vc, self.ri.vc_for_python, self.ri.vs)
+        vc_vers = []
+        for hkey in self.ri.HKEYS:
+            for key in vckeys:
+                try:
+                    bkey = winreg.OpenKey(hkey, ms(key), 0, winreg.KEY_READ)
+                except (OSError, IOError):
+                    continue
+                subkeys, values, _ = winreg.QueryInfoKey(bkey)
+                for i in range(values):
+                    try:
+                        ver = float(winreg.EnumValue(bkey, i)[0])
+                        if ver not in vc_vers:
+                            vc_vers.append(ver)
+                    except ValueError:
+                        pass
+                for i in range(subkeys):
+                    try:
+                        ver = float(winreg.EnumKey(bkey, i))
+                        if ver not in vc_vers:
+                            vc_vers.append(ver)
+                    except ValueError:
+                        pass
+        return sorted(vc_vers)
+
+    @property
+    def VSInstallDir(self):
+        """
+        Microsoft Visual Studio directory.
+        """
+        # Default path
+        name = 'Microsoft Visual Studio %0.1f' % self.vc_ver
+        default = os.path.join(self.ProgramFilesx86, name)
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vs, '%0.1f' % self.vc_ver) or default
+
+    @property
+    def VCInstallDir(self):
+        """
+        Microsoft Visual C++ directory.
+        """
+        self.VSInstallDir
+
+        guess_vc = self._guess_vc() or self._guess_vc_legacy()
+
+        # Try to get "VC++ for Python" path from registry as default path
+        reg_path = os.path.join(self.ri.vc_for_python, '%0.1f' % self.vc_ver)
+        python_vc = self.ri.lookup(reg_path, 'installdir')
+        default_vc = os.path.join(python_vc, 'VC') if python_vc else guess_vc
+
+        # Try to get path from registry, if fail use default path
+        path = self.ri.lookup(self.ri.vc, '%0.1f' % self.vc_ver) or default_vc
+
+        if not os.path.isdir(path):
+            msg = 'Microsoft Visual C++ directory not found'
+            raise distutils.errors.DistutilsPlatformError(msg)
+
+        return path
+
+    def _guess_vc(self):
+        """
+        Locate Visual C for 2017
+        """
+        if self.vc_ver <= 14.0:
+            return
+
+        default = r'VC\Tools\MSVC'
+        guess_vc = os.path.join(self.VSInstallDir, default)
+        # Subdir with VC exact version as name
+        try:
+            vc_exact_ver = os.listdir(guess_vc)[-1]
+            return os.path.join(guess_vc, vc_exact_ver)
+        except (OSError, IOError, IndexError):
+            pass
+
+    def _guess_vc_legacy(self):
+        """
+        Locate Visual C for versions prior to 2017
+        """
+        default = r'Microsoft Visual Studio %0.1f\VC' % self.vc_ver
+        return os.path.join(self.ProgramFilesx86, default)
+
+    @property
+    def WindowsSdkVersion(self):
+        """
+        Microsoft Windows SDK versions for specified MSVC++ version.
+        """
+        if self.vc_ver <= 9.0:
+            return ('7.0', '6.1', '6.0a')
+        elif self.vc_ver == 10.0:
+            return ('7.1', '7.0a')
+        elif self.vc_ver == 11.0:
+            return ('8.0', '8.0a')
+        elif self.vc_ver == 12.0:
+            return ('8.1', '8.1a')
+        elif self.vc_ver >= 14.0:
+            return ('10.0', '8.1')
+
+    @property
+    def WindowsSdkLastVersion(self):
+        """
+        Microsoft Windows SDK last version
+        """
+        return self._use_last_dir_name(os.path.join(
+            self.WindowsSdkDir, 'lib'))
+
+    @property
+    def WindowsSdkDir(self):
+        """
+        Microsoft Windows SDK directory.
+        """
+        sdkdir = ''
+        for ver in self.WindowsSdkVersion:
+            # Try to get it from registry
+            loc = os.path.join(self.ri.windows_sdk, 'v%s' % ver)
+            sdkdir = self.ri.lookup(loc, 'installationfolder')
+            if sdkdir:
+                break
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # Try to get "VC++ for Python" version from registry
+            path = os.path.join(self.ri.vc_for_python, '%0.1f' % self.vc_ver)
+            install_base = self.ri.lookup(path, 'installdir')
+            if install_base:
+                sdkdir = os.path.join(install_base, 'WinSDK')
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default new path
+            for ver in self.WindowsSdkVersion:
+                intver = ver[:ver.rfind('.')]
+                path = r'Microsoft SDKs\Windows Kits\%s' % (intver)
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir or not os.path.isdir(sdkdir):
+            # If fail, use default old path
+            for ver in self.WindowsSdkVersion:
+                path = r'Microsoft SDKs\Windows\v%s' % ver
+                d = os.path.join(self.ProgramFiles, path)
+                if os.path.isdir(d):
+                    sdkdir = d
+        if not sdkdir:
+            # If fail, use Platform SDK
+            sdkdir = os.path.join(self.VCInstallDir, 'PlatformSDK')
+        return sdkdir
+
+    @property
+    def WindowsSDKExecutablePath(self):
+        """
+        Microsoft Windows SDK executable directory.
+        """
+        # Find WinSDK NetFx Tools registry dir name
+        if self.vc_ver <= 11.0:
+            netfxver = 35
+            arch = ''
+        else:
+            netfxver = 40
+            hidex86 = True if self.vc_ver <= 12.0 else False
+            arch = self.pi.current_dir(x64=True, hidex86=hidex86)
+        fx = 'WinSDK-NetFx%dTools%s' % (netfxver, arch.replace('\\', '-'))
+
+        # liste all possibles registry paths
+        regpaths = []
+        if self.vc_ver >= 14.0:
+            for ver in self.NetFxSdkVersion:
+                regpaths += [os.path.join(self.ri.netfx_sdk, ver, fx)]
+
+        for ver in self.WindowsSdkVersion:
+            regpaths += [os.path.join(self.ri.windows_sdk, 'v%sA' % ver, fx)]
+
+        # Return installation folder from the more recent path
+        for path in regpaths:
+            execpath = self.ri.lookup(path, 'installationfolder')
+            if execpath:
+                break
+        return execpath
+
+    @property
+    def FSharpInstallDir(self):
+        """
+        Microsoft Visual F# directory.
+        """
+        path = r'%0.1f\Setup\F#' % self.vc_ver
+        path = os.path.join(self.ri.visualstudio, path)
+        return self.ri.lookup(path, 'productdir') or ''
+
+    @property
+    def UniversalCRTSdkDir(self):
+        """
+        Microsoft Universal CRT SDK directory.
+        """
+        # Set Kit Roots versions for specified MSVC++ version
+        if self.vc_ver >= 14.0:
+            vers = ('10', '81')
+        else:
+            vers = ()
+
+        # Find path of the more recent Kit
+        for ver in vers:
+            sdkdir = self.ri.lookup(self.ri.windows_kits_roots,
+                                    'kitsroot%s' % ver)
+            if sdkdir:
+                break
+        return sdkdir or ''
+
+    @property
+    def UniversalCRTSdkLastVersion(self):
+        """
+        Microsoft Universal C Runtime SDK last version
+        """
+        return self._use_last_dir_name(os.path.join(
+            self.UniversalCRTSdkDir, 'lib'))
+
+    @property
+    def NetFxSdkVersion(self):
+        """
+        Microsoft .NET Framework SDK versions.
+        """
+        # Set FxSdk versions for specified MSVC++ version
+        if self.vc_ver >= 14.0:
+            return ('4.6.1', '4.6')
+        else:
+            return ()
+
+    @property
+    def NetFxSdkDir(self):
+        """
+        Microsoft .NET Framework SDK directory.
+        """
+        for ver in self.NetFxSdkVersion:
+            loc = os.path.join(self.ri.netfx_sdk, ver)
+            sdkdir = self.ri.lookup(loc, 'kitsinstallationfolder')
+            if sdkdir:
+                break
+        return sdkdir or ''
+
+    @property
+    def FrameworkDir32(self):
+        """
+        Microsoft .NET Framework 32bit directory.
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir32') or guess_fw
+
+    @property
+    def FrameworkDir64(self):
+        """
+        Microsoft .NET Framework 64bit directory.
+        """
+        # Default path
+        guess_fw = os.path.join(self.WinDir, r'Microsoft.NET\Framework64')
+
+        # Try to get path from registry, if fail use default path
+        return self.ri.lookup(self.ri.vc, 'frameworkdir64') or guess_fw
+
+    @property
+    def FrameworkVersion32(self):
+        """
+        Microsoft .NET Framework 32bit versions.
+        """
+        return self._find_dot_net_versions(32)
+
+    @property
+    def FrameworkVersion64(self):
+        """
+        Microsoft .NET Framework 64bit versions.
+        """
+        return self._find_dot_net_versions(64)
+
+    def _find_dot_net_versions(self, bits):
+        """
+        Find Microsoft .NET Framework versions.
+
+        Parameters
+        ----------
+        bits: int
+            Platform number of bits: 32 or 64.
+        """
+        # Find actual .NET version in registry
+        reg_ver = self.ri.lookup(self.ri.vc, 'frameworkver%d' % bits)
+        dot_net_dir = getattr(self, 'FrameworkDir%d' % bits)
+        ver = reg_ver or self._use_last_dir_name(dot_net_dir, 'v') or ''
+
+        # Set .NET versions for specified MSVC++ version
+        if self.vc_ver >= 12.0:
+            frameworkver = (ver, 'v4.0')
+        elif self.vc_ver >= 10.0:
+            frameworkver = ('v4.0.30319' if ver.lower()[:2] != 'v4' else ver,
+                            'v3.5')
+        elif self.vc_ver == 9.0:
+            frameworkver = ('v3.5', 'v2.0.50727')
+        if self.vc_ver == 8.0:
+            frameworkver = ('v3.0', 'v2.0.50727')
+        return frameworkver
+
+    def _use_last_dir_name(self, path, prefix=''):
+        """
+        Return name of the last dir in path or '' if no dir found.
+
+        Parameters
+        ----------
+        path: str
+            Use dirs in this path
+        prefix: str
+            Use only dirs startings by this prefix
+        """
+        matching_dirs = (
+            dir_name
+            for dir_name in reversed(os.listdir(path))
+            if os.path.isdir(os.path.join(path, dir_name)) and
+            dir_name.startswith(prefix)
+        )
+        return next(matching_dirs, None) or ''
+
+
+class EnvironmentInfo:
+    """
+    Return environment variables for specified Microsoft Visual C++ version
+    and platform : Lib, Include, Path and libpath.
+
+    This function is compatible with Microsoft Visual C++ 9.0 to 14.0.
+
+    Script created by analysing Microsoft environment configuration files like
+    "vcvars[...].bat", "SetEnv.Cmd", "vcbuildtools.bat", ...
+
+    Parameters
+    ----------
+    arch: str
+        Target architecture.
+    vc_ver: float
+        Required Microsoft Visual C++ version. If not set, autodetect the last
+        version.
+    vc_min_ver: float
+        Minimum Microsoft Visual C++ version.
+    """
+
+    # Variables and properties in this class use originals CamelCase variables
+    # names from Microsoft source files for more easy comparaison.
+
+    def __init__(self, arch, vc_ver=None, vc_min_ver=0):
+        self.pi = PlatformInfo(arch)
+        self.ri = RegistryInfo(self.pi)
+        self.si = SystemInfo(self.ri, vc_ver)
+
+        if self.vc_ver < vc_min_ver:
+            err = 'No suitable Microsoft Visual C++ version found'
+            raise distutils.errors.DistutilsPlatformError(err)
+
+    @property
+    def vc_ver(self):
+        """
+        Microsoft Visual C++ version.
+        """
+        return self.si.vc_ver
+
+    @property
+    def VSTools(self):
+        """
+        Microsoft Visual Studio Tools
+        """
+        paths = [r'Common7\IDE', r'Common7\Tools']
+
+        if self.vc_ver >= 14.0:
+            arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            paths += [r'Common7\IDE\CommonExtensions\Microsoft\TestWindow']
+            paths += [r'Team Tools\Performance Tools']
+            paths += [r'Team Tools\Performance Tools%s' % arch_subdir]
+
+        return [os.path.join(self.si.VSInstallDir, path) for path in paths]
+
+    @property
+    def VCIncludes(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Includes
+        """
+        return [os.path.join(self.si.VCInstallDir, 'Include'),
+                os.path.join(self.si.VCInstallDir, r'ATLMFC\Include')]
+
+    @property
+    def VCLibraries(self):
+        """
+        Microsoft Visual C++ & Microsoft Foundation Class Libraries
+        """
+        if self.vc_ver >= 15.0:
+            arch_subdir = self.pi.target_dir(x64=True)
+        else:
+            arch_subdir = self.pi.target_dir(hidex86=True)
+        paths = ['Lib%s' % arch_subdir, r'ATLMFC\Lib%s' % arch_subdir]
+
+        if self.vc_ver >= 14.0:
+            paths += [r'Lib\store%s' % arch_subdir]
+
+        return [os.path.join(self.si.VCInstallDir, path) for path in paths]
+
+    @property
+    def VCStoreRefs(self):
+        """
+        Microsoft Visual C++ store references Libraries
+        """
+        if self.vc_ver < 14.0:
+            return []
+        return [os.path.join(self.si.VCInstallDir, r'Lib\store\references')]
+
+    @property
+    def VCTools(self):
+        """
+        Microsoft Visual C++ Tools
+        """
+        si = self.si
+        tools = [os.path.join(si.VCInstallDir, 'VCPackages')]
+
+        forcex86 = True if self.vc_ver <= 10.0 else False
+        arch_subdir = self.pi.cross_dir(forcex86)
+        if arch_subdir:
+            tools += [os.path.join(si.VCInstallDir, 'Bin%s' % arch_subdir)]
+
+        if self.vc_ver == 14.0:
+            path = 'Bin%s' % self.pi.current_dir(hidex86=True)
+            tools += [os.path.join(si.VCInstallDir, path)]
+
+        elif self.vc_ver >= 15.0:
+            host_dir = (r'bin\HostX86%s' if self.pi.current_is_x86() else
+                        r'bin\HostX64%s')
+            tools += [os.path.join(
+                si.VCInstallDir, host_dir % self.pi.target_dir(x64=True))]
+
+            if self.pi.current_cpu != self.pi.target_cpu:
+                tools += [os.path.join(
+                    si.VCInstallDir, host_dir % self.pi.current_dir(x64=True))]
+
+        else:
+            tools += [os.path.join(si.VCInstallDir, 'Bin')]
+
+        return tools
+
+    @property
+    def OSLibraries(self):
+        """
+        Microsoft Windows SDK Libraries
+        """
+        if self.vc_ver <= 10.0:
+            arch_subdir = self.pi.target_dir(hidex86=True, x64=True)
+            return [os.path.join(self.si.WindowsSdkDir, 'Lib%s' % arch_subdir)]
+
+        else:
+            arch_subdir = self.pi.target_dir(x64=True)
+            lib = os.path.join(self.si.WindowsSdkDir, 'lib')
+            libver = self._sdk_subdir
+            return [os.path.join(lib, '%sum%s' % (libver , arch_subdir))]
+
+    @property
+    def OSIncludes(self):
+        """
+        Microsoft Windows SDK Include
+        """
+        include = os.path.join(self.si.WindowsSdkDir, 'include')
+
+        if self.vc_ver <= 10.0:
+            return [include, os.path.join(include, 'gl')]
+
+        else:
+            if self.vc_ver >= 14.0:
+                sdkver = self._sdk_subdir
+            else:
+                sdkver = ''
+            return [os.path.join(include, '%sshared' % sdkver),
+                    os.path.join(include, '%sum' % sdkver),
+                    os.path.join(include, '%swinrt' % sdkver)]
+
+    @property
+    def OSLibpath(self):
+        """
+        Microsoft Windows SDK Libraries Paths
+        """
+        ref = os.path.join(self.si.WindowsSdkDir, 'References')
+        libpath = []
+
+        if self.vc_ver <= 9.0:
+            libpath += self.OSLibraries
+
+        if self.vc_ver >= 11.0:
+            libpath += [os.path.join(ref, r'CommonConfiguration\Neutral')]
+
+        if self.vc_ver >= 14.0:
+            libpath += [
+                ref,
+                os.path.join(self.si.WindowsSdkDir, 'UnionMetadata'),
+                os.path.join(
+                    ref,
+                    'Windows.Foundation.UniversalApiContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    ref,
+                    'Windows.Foundation.FoundationContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    ref,
+                    'Windows.Networking.Connectivity.WwanContract',
+                    '1.0.0.0',
+                ),
+                os.path.join(
+                    self.si.WindowsSdkDir,
+                    'ExtensionSDKs',
+                    'Microsoft.VCLibs',
+                    '%0.1f' % self.vc_ver,
+                    'References',
+                    'CommonConfiguration',
+                    'neutral',
+                ),
+            ]
+        return libpath
+
+    @property
+    def SdkTools(self):
+        """
+        Microsoft Windows SDK Tools
+        """
+        return list(self._sdk_tools())
+
+    def _sdk_tools(self):
+        """
+        Microsoft Windows SDK Tools paths generator
+        """
+        if self.vc_ver < 15.0:
+            bin_dir = 'Bin' if self.vc_ver <= 11.0 else r'Bin\x86'
+            yield os.path.join(self.si.WindowsSdkDir, bin_dir)
+
+        if not self.pi.current_is_x86():
+            arch_subdir = self.pi.current_dir(x64=True)
+            path = 'Bin%s' % arch_subdir
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        if self.vc_ver == 10.0 or self.vc_ver == 11.0:
+            if self.pi.target_is_x86():
+                arch_subdir = ''
+            else:
+                arch_subdir = self.pi.current_dir(hidex86=True, x64=True)
+            path = r'Bin\NETFX 4.0 Tools%s' % arch_subdir
+            yield os.path.join(self.si.WindowsSdkDir, path)
+
+        elif self.vc_ver >= 15.0:
+            path = os.path.join(self.si.WindowsSdkDir, 'Bin')
+            arch_subdir = self.pi.current_dir(x64=True)
+            sdkver = self.si.WindowsSdkLastVersion
+            yield os.path.join(path, '%s%s' % (sdkver, arch_subdir))
+
+        if self.si.WindowsSDKExecutablePath:
+            yield self.si.WindowsSDKExecutablePath
+
+    @property
+    def _sdk_subdir(self):
+        """
+        Microsoft Windows SDK version subdir
+        """
+        ucrtver = self.si.WindowsSdkLastVersion
+        return ('%s\\' % ucrtver) if ucrtver else ''
+
+    @property
+    def SdkSetup(self):
+        """
+        Microsoft Windows SDK Setup
+        """
+        if self.vc_ver > 9.0:
+            return []
+
+        return [os.path.join(self.si.WindowsSdkDir, 'Setup')]
+
+    @property
+    def FxTools(self):
+        """
+        Microsoft .NET Framework Tools
+        """
+        pi = self.pi
+        si = self.si
+
+        if self.vc_ver <= 10.0:
+            include32 = True
+            include64 = not pi.target_is_x86() and not pi.current_is_x86()
+        else:
+            include32 = pi.target_is_x86() or pi.current_is_x86()
+            include64 = pi.current_cpu == 'amd64' or pi.target_cpu == 'amd64'
+
+        tools = []
+        if include32:
+            tools += [os.path.join(si.FrameworkDir32, ver)
+                      for ver in si.FrameworkVersion32]
+        if include64:
+            tools += [os.path.join(si.FrameworkDir64, ver)
+                      for ver in si.FrameworkVersion64]
+        return tools
+
+    @property
+    def NetFxSDKLibraries(self):
+        """
+        Microsoft .Net Framework SDK Libraries
+        """
+        if self.vc_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        return [os.path.join(self.si.NetFxSdkDir, r'lib\um%s' % arch_subdir)]
+
+    @property
+    def NetFxSDKIncludes(self):
+        """
+        Microsoft .Net Framework SDK Includes
+        """
+        if self.vc_ver < 14.0 or not self.si.NetFxSdkDir:
+            return []
+
+        return [os.path.join(self.si.NetFxSdkDir, r'include\um')]
+
+    @property
+    def VsTDb(self):
+        """
+        Microsoft Visual Studio Team System Database
+        """
+        return [os.path.join(self.si.VSInstallDir, r'VSTSDB\Deploy')]
+
+    @property
+    def MSBuild(self):
+        """
+        Microsoft Build Engine
+        """
+        if self.vc_ver < 12.0:
+            return []
+        elif self.vc_ver < 15.0:
+            base_path = self.si.ProgramFilesx86
+            arch_subdir = self.pi.current_dir(hidex86=True)
+        else:
+            base_path = self.si.VSInstallDir
+            arch_subdir = ''
+
+        path = r'MSBuild\%0.1f\bin%s' % (self.vc_ver, arch_subdir)
+        build = [os.path.join(base_path, path)]
+
+        if self.vc_ver >= 15.0:
+            # Add Roslyn C# & Visual Basic Compiler
+            build += [os.path.join(base_path, path, 'Roslyn')]
+
+        return build
+
+    @property
+    def HTMLHelpWorkshop(self):
+        """
+        Microsoft HTML Help Workshop
+        """
+        if self.vc_ver < 11.0:
+            return []
+
+        return [os.path.join(self.si.ProgramFilesx86, 'HTML Help Workshop')]
+
+    @property
+    def UCRTLibraries(self):
+        """
+        Microsoft Universal C Runtime SDK Libraries
+        """
+        if self.vc_ver < 14.0:
+            return []
+
+        arch_subdir = self.pi.target_dir(x64=True)
+        lib = os.path.join(self.si.UniversalCRTSdkDir, 'lib')
+        ucrtver = self._ucrt_subdir
+        return [os.path.join(lib, '%sucrt%s' % (ucrtver, arch_subdir))]
+
+    @property
+    def UCRTIncludes(self):
+        """
+        Microsoft Universal C Runtime SDK Include
+        """
+        if self.vc_ver < 14.0:
+            return []
+
+        include = os.path.join(self.si.UniversalCRTSdkDir, 'include')
+        return [os.path.join(include, '%sucrt' % self._ucrt_subdir)]
+
+    @property
+    def _ucrt_subdir(self):
+        """
+        Microsoft Universal C Runtime SDK version subdir
+        """
+        ucrtver = self.si.UniversalCRTSdkLastVersion
+        return ('%s\\' % ucrtver) if ucrtver else ''
+
+    @property
+    def FSharp(self):
+        """
+        Microsoft Visual F#
+        """
+        if self.vc_ver < 11.0 and self.vc_ver > 12.0:
+            return []
+
+        return self.si.FSharpInstallDir
+
+    @property
+    def VCRuntimeRedist(self):
+        """
+        Microsoft Visual C++ runtime redistribuable dll
+        """
+        arch_subdir = self.pi.target_dir(x64=True)
+        if self.vc_ver < 15:
+            redist_path = self.si.VCInstallDir
+            vcruntime = 'redist%s\\Microsoft.VC%d0.CRT\\vcruntime%d0.dll'
+        else:
+            redist_path = self.si.VCInstallDir.replace('\\Tools', '\\Redist')
+            vcruntime = 'onecore%s\\Microsoft.VC%d0.CRT\\vcruntime%d0.dll'
+
+        # Visual Studio 2017  is still Visual C++ 14.0
+        dll_ver = 14.0 if self.vc_ver == 15 else self.vc_ver
+
+        vcruntime = vcruntime % (arch_subdir, self.vc_ver, dll_ver)
+        return os.path.join(redist_path, vcruntime)
+
+    def return_env(self, exists=True):
+        """
+        Return environment dict.
+
+        Parameters
+        ----------
+        exists: bool
+            It True, only return existing paths.
+        """
+        env = dict(
+            include=self._build_paths('include',
+                                      [self.VCIncludes,
+                                       self.OSIncludes,
+                                       self.UCRTIncludes,
+                                       self.NetFxSDKIncludes],
+                                      exists),
+            lib=self._build_paths('lib',
+                                  [self.VCLibraries,
+                                   self.OSLibraries,
+                                   self.FxTools,
+                                   self.UCRTLibraries,
+                                   self.NetFxSDKLibraries],
+                                  exists),
+            libpath=self._build_paths('libpath',
+                                      [self.VCLibraries,
+                                       self.FxTools,
+                                       self.VCStoreRefs,
+                                       self.OSLibpath],
+                                      exists),
+            path=self._build_paths('path',
+                                   [self.VCTools,
+                                    self.VSTools,
+                                    self.VsTDb,
+                                    self.SdkTools,
+                                    self.SdkSetup,
+                                    self.FxTools,
+                                    self.MSBuild,
+                                    self.HTMLHelpWorkshop,
+                                    self.FSharp],
+                                   exists),
+        )
+        if self.vc_ver >= 14 and os.path.isfile(self.VCRuntimeRedist):
+            env['py_vcruntime_redist'] = self.VCRuntimeRedist
+        return env
+
+    def _build_paths(self, name, spec_path_lists, exists):
+        """
+        Given an environment variable name and specified paths,
+        return a pathsep-separated string of paths containing
+        unique, extant, directories from those paths and from
+        the environment variable. Raise an error if no paths
+        are resolved.
+        """
+        # flatten spec_path_lists
+        spec_paths = itertools.chain.from_iterable(spec_path_lists)
+        env_paths = safe_env.get(name, '').split(os.pathsep)
+        paths = itertools.chain(spec_paths, env_paths)
+        extant_paths = list(filter(os.path.isdir, paths)) if exists else paths
+        if not extant_paths:
+            msg = "%s environment variable is empty" % name.upper()
+            raise distutils.errors.DistutilsPlatformError(msg)
+        unique_paths = self._unique_everseen(extant_paths)
+        return os.pathsep.join(unique_paths)
+
+    # from Python docs
+    def _unique_everseen(self, iterable, key=None):
+        """
+        List unique elements, preserving order.
+        Remember all elements ever seen.
+
+        _unique_everseen('AAAABBBCCDAABBB') --> A B C D
+
+        _unique_everseen('ABBCcAD', str.lower) --> A B C D
+        """
+        seen = set()
+        seen_add = seen.add
+        if key is None:
+            for element in filterfalse(seen.__contains__, iterable):
+                seen_add(element)
+                yield element
+        else:
+            for element in iterable:
+                k = key(element)
+                if k not in seen:
+                    seen_add(k)
+                    yield element
diff --git a/venv1/lib/python3.5/site-packages/setuptools/namespaces.py b/venv1/lib/python3.5/site-packages/setuptools/namespaces.py
new file mode 100644
index 0000000..dc16106
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/namespaces.py
@@ -0,0 +1,107 @@
+import os
+from distutils import log
+import itertools
+
+from setuptools.extern.six.moves import map
+
+
+flatten = itertools.chain.from_iterable
+
+
+class Installer:
+
+    nspkg_ext = '-nspkg.pth'
+
+    def install_namespaces(self):
+        nsp = self._get_all_ns_packages()
+        if not nsp:
+            return
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
+        self.outputs.append(filename)
+        log.info("Installing %s", filename)
+        lines = map(self._gen_nspkg_line, nsp)
+
+        if self.dry_run:
+            # always generate the lines, even in dry run
+            list(lines)
+            return
+
+        with open(filename, 'wt') as f:
+            f.writelines(lines)
+
+    def uninstall_namespaces(self):
+        filename, ext = os.path.splitext(self._get_target())
+        filename += self.nspkg_ext
+        if not os.path.exists(filename):
+            return
+        log.info("Removing %s", filename)
+        os.remove(filename)
+
+    def _get_target(self):
+        return self.target
+
+    _nspkg_tmpl = (
+        "import sys, types, os",
+        "has_mfs = sys.version_info > (3, 5)",
+        "p = os.path.join(%(root)s, *%(pth)r)",
+        "importlib = has_mfs and __import__('importlib.util')",
+        "has_mfs and __import__('importlib.machinery')",
+        "m = has_mfs and "
+            "sys.modules.setdefault(%(pkg)r, "
+                "importlib.util.module_from_spec("
+                    "importlib.machinery.PathFinder.find_spec(%(pkg)r, "
+                        "[os.path.dirname(p)])))",
+        "m = m or "
+            "sys.modules.setdefault(%(pkg)r, types.ModuleType(%(pkg)r))",
+        "mp = (m or []) and m.__dict__.setdefault('__path__',[])",
+        "(p not in mp) and mp.append(p)",
+    )
+    "lines for the namespace installer"
+
+    _nspkg_tmpl_multi = (
+        'm and setattr(sys.modules[%(parent)r], %(child)r, m)',
+    )
+    "additional line(s) when a parent package is indicated"
+
+    def _get_root(self):
+        return "sys._getframe(1).f_locals['sitedir']"
+
+    def _gen_nspkg_line(self, pkg):
+        # ensure pkg is not a unicode string under Python 2.7
+        pkg = str(pkg)
+        pth = tuple(pkg.split('.'))
+        root = self._get_root()
+        tmpl_lines = self._nspkg_tmpl
+        parent, sep, child = pkg.rpartition('.')
+        if parent:
+            tmpl_lines += self._nspkg_tmpl_multi
+        return ';'.join(tmpl_lines) % locals() + '\n'
+
+    def _get_all_ns_packages(self):
+        """Return sorted list of all package namespaces"""
+        pkgs = self.distribution.namespace_packages or []
+        return sorted(flatten(map(self._pkg_names, pkgs)))
+
+    @staticmethod
+    def _pkg_names(pkg):
+        """
+        Given a namespace package, yield the components of that
+        package.
+
+        >>> names = Installer._pkg_names('a.b.c')
+        >>> set(names) == set(['a', 'a.b', 'a.b.c'])
+        True
+        """
+        parts = pkg.split('.')
+        while parts:
+            yield '.'.join(parts)
+            parts.pop()
+
+
+class DevelopInstaller(Installer):
+    def _get_root(self):
+        return repr(str(self.egg_path))
+
+    def _get_target(self):
+        return self.egg_link
diff --git a/venv1/lib/python3.5/site-packages/setuptools/package_index.py b/venv1/lib/python3.5/site-packages/setuptools/package_index.py
new file mode 100644
index 0000000..ad74330
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/package_index.py
@@ -0,0 +1,1137 @@
+"""PyPI and direct package downloading"""
+import sys
+import os
+import re
+import shutil
+import socket
+import base64
+import hashlib
+import itertools
+from functools import wraps
+
+try:
+    from urllib.parse import splituser
+except ImportError:
+    from urllib2 import splituser
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import urllib, http_client, configparser, map
+
+import setuptools
+from pkg_resources import (
+    CHECKOUT_DIST, Distribution, BINARY_DIST, normalize_path, SOURCE_DIST,
+    Environment, find_distributions, safe_name, safe_version,
+    to_filename, Requirement, DEVELOP_DIST, EGG_DIST,
+)
+from setuptools import ssl_support
+from distutils import log
+from distutils.errors import DistutilsError
+from fnmatch import translate
+from setuptools.py27compat import get_all_headers
+from setuptools.wheel import Wheel
+
+EGG_FRAGMENT = re.compile(r'^egg=([-A-Za-z0-9_.+!]+)$')
+HREF = re.compile("""href\\s*=\\s*['"]?([^'"> ]+)""", re.I)
+# this is here to fix emacs' cruddy broken syntax highlighting
+PYPI_MD5 = re.compile(
+    '<a href="([^"#]+)">([^<]+)</a>\n\\s+\\(<a (?:title="MD5 hash"\n\\s+)'
+    'href="[^?]+\\?:action=show_md5&digest=([0-9a-f]{32})">md5</a>\\)'
+)
+URL_SCHEME = re.compile('([-+.a-z0-9]{2,}):', re.I).match
+EXTENSIONS = ".tar.gz .tar.bz2 .tar .zip .tgz".split()
+
+__all__ = [
+    'PackageIndex', 'distros_for_url', 'parse_bdist_wininst',
+    'interpret_distro_name',
+]
+
+_SOCKET_TIMEOUT = 15
+
+_tmpl = "setuptools/{setuptools.__version__} Python-urllib/{py_major}"
+user_agent = _tmpl.format(py_major=sys.version[:3], setuptools=setuptools)
+
+
+def parse_requirement_arg(spec):
+    try:
+        return Requirement.parse(spec)
+    except ValueError:
+        raise DistutilsError(
+            "Not a URL, existing file, or requirement spec: %r" % (spec,)
+        )
+
+
+def parse_bdist_wininst(name):
+    """Return (base,pyversion) or (None,None) for possible .exe name"""
+
+    lower = name.lower()
+    base, py_ver, plat = None, None, None
+
+    if lower.endswith('.exe'):
+        if lower.endswith('.win32.exe'):
+            base = name[:-10]
+            plat = 'win32'
+        elif lower.startswith('.win32-py', -16):
+            py_ver = name[-7:-4]
+            base = name[:-16]
+            plat = 'win32'
+        elif lower.endswith('.win-amd64.exe'):
+            base = name[:-14]
+            plat = 'win-amd64'
+        elif lower.startswith('.win-amd64-py', -20):
+            py_ver = name[-7:-4]
+            base = name[:-20]
+            plat = 'win-amd64'
+    return base, py_ver, plat
+
+
+def egg_info_for_url(url):
+    parts = urllib.parse.urlparse(url)
+    scheme, server, path, parameters, query, fragment = parts
+    base = urllib.parse.unquote(path.split('/')[-1])
+    if server == 'sourceforge.net' and base == 'download':  # XXX Yuck
+        base = urllib.parse.unquote(path.split('/')[-2])
+    if '#' in base:
+        base, fragment = base.split('#', 1)
+    return base, fragment
+
+
+def distros_for_url(url, metadata=None):
+    """Yield egg or source distribution objects that might be found at a URL"""
+    base, fragment = egg_info_for_url(url)
+    for dist in distros_for_location(url, base, metadata):
+        yield dist
+    if fragment:
+        match = EGG_FRAGMENT.match(fragment)
+        if match:
+            for dist in interpret_distro_name(
+                url, match.group(1), metadata, precedence=CHECKOUT_DIST
+            ):
+                yield dist
+
+
+def distros_for_location(location, basename, metadata=None):
+    """Yield egg or source distribution objects based on basename"""
+    if basename.endswith('.egg.zip'):
+        basename = basename[:-4]  # strip the .zip
+    if basename.endswith('.egg') and '-' in basename:
+        # only one, unambiguous interpretation
+        return [Distribution.from_location(location, basename, metadata)]
+    if basename.endswith('.whl') and '-' in basename:
+        wheel = Wheel(basename)
+        if not wheel.is_compatible():
+            return []
+        return [Distribution(
+            location=location,
+            project_name=wheel.project_name,
+            version=wheel.version,
+            # Increase priority over eggs.
+            precedence=EGG_DIST + 1,
+        )]
+    if basename.endswith('.exe'):
+        win_base, py_ver, platform = parse_bdist_wininst(basename)
+        if win_base is not None:
+            return interpret_distro_name(
+                location, win_base, metadata, py_ver, BINARY_DIST, platform
+            )
+    # Try source distro extensions (.zip, .tgz, etc.)
+    #
+    for ext in EXTENSIONS:
+        if basename.endswith(ext):
+            basename = basename[:-len(ext)]
+            return interpret_distro_name(location, basename, metadata)
+    return []  # no extension matched
+
+
+def distros_for_filename(filename, metadata=None):
+    """Yield possible egg or source distribution objects based on a filename"""
+    return distros_for_location(
+        normalize_path(filename), os.path.basename(filename), metadata
+    )
+
+
+def interpret_distro_name(
+        location, basename, metadata, py_version=None, precedence=SOURCE_DIST,
+        platform=None
+):
+    """Generate alternative interpretations of a source distro name
+
+    Note: if `location` is a filesystem filename, you should call
+    ``pkg_resources.normalize_path()`` on it before passing it to this
+    routine!
+    """
+    # Generate alternative interpretations of a source distro name
+    # Because some packages are ambiguous as to name/versions split
+    # e.g. "adns-python-1.1.0", "egenix-mx-commercial", etc.
+    # So, we generate each possible interepretation (e.g. "adns, python-1.1.0"
+    # "adns-python, 1.1.0", and "adns-python-1.1.0, no version").  In practice,
+    # the spurious interpretations should be ignored, because in the event
+    # there's also an "adns" package, the spurious "python-1.1.0" version will
+    # compare lower than any numeric version number, and is therefore unlikely
+    # to match a request for it.  It's still a potential problem, though, and
+    # in the long run PyPI and the distutils should go for "safe" names and
+    # versions in distribution archive names (sdist and bdist).
+
+    parts = basename.split('-')
+    if not py_version and any(re.match(r'py\d\.\d$', p) for p in parts[2:]):
+        # it is a bdist_dumb, not an sdist -- bail out
+        return
+
+    for p in range(1, len(parts) + 1):
+        yield Distribution(
+            location, metadata, '-'.join(parts[:p]), '-'.join(parts[p:]),
+            py_version=py_version, precedence=precedence,
+            platform=platform
+        )
+
+
+# From Python 2.7 docs
+def unique_everseen(iterable, key=None):
+    "List unique elements, preserving order. Remember all elements ever seen."
+    # unique_everseen('AAAABBBCCDAABBB') --> A B C D
+    # unique_everseen('ABBCcAD', str.lower) --> A B C D
+    seen = set()
+    seen_add = seen.add
+    if key is None:
+        for element in six.moves.filterfalse(seen.__contains__, iterable):
+            seen_add(element)
+            yield element
+    else:
+        for element in iterable:
+            k = key(element)
+            if k not in seen:
+                seen_add(k)
+                yield element
+
+
+def unique_values(func):
+    """
+    Wrap a function returning an iterable such that the resulting iterable
+    only ever yields unique items.
+    """
+
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        return unique_everseen(func(*args, **kwargs))
+
+    return wrapper
+
+
+REL = re.compile(r"""<([^>]*\srel\s*=\s*['"]?([^'">]+)[^>]*)>""", re.I)
+# this line is here to fix emacs' cruddy broken syntax highlighting
+
+
+@unique_values
+def find_external_links(url, page):
+    """Find rel="homepage" and rel="download" links in `page`, yielding URLs"""
+
+    for match in REL.finditer(page):
+        tag, rel = match.groups()
+        rels = set(map(str.strip, rel.lower().split(',')))
+        if 'homepage' in rels or 'download' in rels:
+            for match in HREF.finditer(tag):
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
+
+    for tag in ("<th>Home Page", "<th>Download URL"):
+        pos = page.find(tag)
+        if pos != -1:
+            match = HREF.search(page, pos)
+            if match:
+                yield urllib.parse.urljoin(url, htmldecode(match.group(1)))
+
+
+class ContentChecker(object):
+    """
+    A null content checker that defines the interface for checking content
+    """
+
+    def feed(self, block):
+        """
+        Feed a block of data to the hash.
+        """
+        return
+
+    def is_valid(self):
+        """
+        Check the hash. Return False if validation fails.
+        """
+        return True
+
+    def report(self, reporter, template):
+        """
+        Call reporter with information about the checker (hash name)
+        substituted into the template.
+        """
+        return
+
+
+class HashChecker(ContentChecker):
+    pattern = re.compile(
+        r'(?P<hash_name>sha1|sha224|sha384|sha256|sha512|md5)='
+        r'(?P<expected>[a-f0-9]+)'
+    )
+
+    def __init__(self, hash_name, expected):
+        self.hash_name = hash_name
+        self.hash = hashlib.new(hash_name)
+        self.expected = expected
+
+    @classmethod
+    def from_url(cls, url):
+        "Construct a (possibly null) ContentChecker from a URL"
+        fragment = urllib.parse.urlparse(url)[-1]
+        if not fragment:
+            return ContentChecker()
+        match = cls.pattern.search(fragment)
+        if not match:
+            return ContentChecker()
+        return cls(**match.groupdict())
+
+    def feed(self, block):
+        self.hash.update(block)
+
+    def is_valid(self):
+        return self.hash.hexdigest() == self.expected
+
+    def report(self, reporter, template):
+        msg = template % self.hash_name
+        return reporter(msg)
+
+
+class PackageIndex(Environment):
+    """A distribution index that scans web pages for download URLs"""
+
+    def __init__(
+            self, index_url="https://pypi.python.org/simple", hosts=('*',),
+            ca_bundle=None, verify_ssl=True, *args, **kw
+    ):
+        Environment.__init__(self, *args, **kw)
+        self.index_url = index_url + "/" [:not index_url.endswith('/')]
+        self.scanned_urls = {}
+        self.fetched_urls = {}
+        self.package_pages = {}
+        self.allows = re.compile('|'.join(map(translate, hosts))).match
+        self.to_scan = []
+        use_ssl = (
+            verify_ssl
+            and ssl_support.is_available
+            and (ca_bundle or ssl_support.find_ca_bundle())
+        )
+        if use_ssl:
+            self.opener = ssl_support.opener_for(ca_bundle)
+        else:
+            self.opener = urllib.request.urlopen
+
+    def process_url(self, url, retrieve=False):
+        """Evaluate a URL as a possible download, and maybe retrieve it"""
+        if url in self.scanned_urls and not retrieve:
+            return
+        self.scanned_urls[url] = True
+        if not URL_SCHEME(url):
+            self.process_filename(url)
+            return
+        else:
+            dists = list(distros_for_url(url))
+            if dists:
+                if not self.url_ok(url):
+                    return
+                self.debug("Found link: %s", url)
+
+        if dists or not retrieve or url in self.fetched_urls:
+            list(map(self.add, dists))
+            return  # don't need the actual page
+
+        if not self.url_ok(url):
+            self.fetched_urls[url] = True
+            return
+
+        self.info("Reading %s", url)
+        self.fetched_urls[url] = True  # prevent multiple fetch attempts
+        tmpl = "Download error on %s: %%s -- Some packages may not be found!"
+        f = self.open_url(url, tmpl % url)
+        if f is None:
+            return
+        self.fetched_urls[f.url] = True
+        if 'html' not in f.headers.get('content-type', '').lower():
+            f.close()  # not html, we can't process it
+            return
+
+        base = f.url  # handle redirects
+        page = f.read()
+        if not isinstance(page, str):
+            # In Python 3 and got bytes but want str.
+            if isinstance(f, urllib.error.HTTPError):
+                # Errors have no charset, assume latin1:
+                charset = 'latin-1'
+            else:
+                charset = f.headers.get_param('charset') or 'latin-1'
+            page = page.decode(charset, "ignore")
+        f.close()
+        for match in HREF.finditer(page):
+            link = urllib.parse.urljoin(base, htmldecode(match.group(1)))
+            self.process_url(link)
+        if url.startswith(self.index_url) and getattr(f, 'code', None) != 404:
+            page = self.process_index(url, page)
+
+    def process_filename(self, fn, nested=False):
+        # process filenames or directories
+        if not os.path.exists(fn):
+            self.warn("Not found: %s", fn)
+            return
+
+        if os.path.isdir(fn) and not nested:
+            path = os.path.realpath(fn)
+            for item in os.listdir(path):
+                self.process_filename(os.path.join(path, item), True)
+
+        dists = distros_for_filename(fn)
+        if dists:
+            self.debug("Found: %s", fn)
+            list(map(self.add, dists))
+
+    def url_ok(self, url, fatal=False):
+        s = URL_SCHEME(url)
+        is_file = s and s.group(1).lower() == 'file'
+        if is_file or self.allows(urllib.parse.urlparse(url)[1]):
+            return True
+        msg = (
+            "\nNote: Bypassing %s (disallowed host; see "
+            "http://bit.ly/2hrImnY for details).\n")
+        if fatal:
+            raise DistutilsError(msg % url)
+        else:
+            self.warn(msg, url)
+
+    def scan_egg_links(self, search_path):
+        dirs = filter(os.path.isdir, search_path)
+        egg_links = (
+            (path, entry)
+            for path in dirs
+            for entry in os.listdir(path)
+            if entry.endswith('.egg-link')
+        )
+        list(itertools.starmap(self.scan_egg_link, egg_links))
+
+    def scan_egg_link(self, path, entry):
+        with open(os.path.join(path, entry)) as raw_lines:
+            # filter non-empty lines
+            lines = list(filter(None, map(str.strip, raw_lines)))
+
+        if len(lines) != 2:
+            # format is not recognized; punt
+            return
+
+        egg_path, setup_path = lines
+
+        for dist in find_distributions(os.path.join(path, egg_path)):
+            dist.location = os.path.join(path, *lines)
+            dist.precedence = SOURCE_DIST
+            self.add(dist)
+
+    def process_index(self, url, page):
+        """Process the contents of a PyPI page"""
+
+        def scan(link):
+            # Process a URL to see if it's for a package page
+            if link.startswith(self.index_url):
+                parts = list(map(
+                    urllib.parse.unquote, link[len(self.index_url):].split('/')
+                ))
+                if len(parts) == 2 and '#' not in parts[1]:
+                    # it's a package page, sanitize and index it
+                    pkg = safe_name(parts[0])
+                    ver = safe_version(parts[1])
+                    self.package_pages.setdefault(pkg.lower(), {})[link] = True
+                    return to_filename(pkg), to_filename(ver)
+            return None, None
+
+        # process an index page into the package-page index
+        for match in HREF.finditer(page):
+            try:
+                scan(urllib.parse.urljoin(url, htmldecode(match.group(1))))
+            except ValueError:
+                pass
+
+        pkg, ver = scan(url)  # ensure this page is in the page index
+        if pkg:
+            # process individual package page
+            for new_url in find_external_links(url, page):
+                # Process the found URL
+                base, frag = egg_info_for_url(new_url)
+                if base.endswith('.py') and not frag:
+                    if ver:
+                        new_url += '#egg=%s-%s' % (pkg, ver)
+                    else:
+                        self.need_version_info(url)
+                self.scan_url(new_url)
+
+            return PYPI_MD5.sub(
+                lambda m: '<a href="%s#md5=%s">%s</a>' % m.group(1, 3, 2), page
+            )
+        else:
+            return ""  # no sense double-scanning non-package pages
+
+    def need_version_info(self, url):
+        self.scan_all(
+            "Page at %s links to .py file(s) without version info; an index "
+            "scan is required.", url
+        )
+
+    def scan_all(self, msg=None, *args):
+        if self.index_url not in self.fetched_urls:
+            if msg:
+                self.warn(msg, *args)
+            self.info(
+                "Scanning index of all packages (this may take a while)"
+            )
+        self.scan_url(self.index_url)
+
+    def find_packages(self, requirement):
+        self.scan_url(self.index_url + requirement.unsafe_name + '/')
+
+        if not self.package_pages.get(requirement.key):
+            # Fall back to safe version of the name
+            self.scan_url(self.index_url + requirement.project_name + '/')
+
+        if not self.package_pages.get(requirement.key):
+            # We couldn't find the target package, so search the index page too
+            self.not_found_in_index(requirement)
+
+        for url in list(self.package_pages.get(requirement.key, ())):
+            # scan each page that might be related to the desired package
+            self.scan_url(url)
+
+    def obtain(self, requirement, installer=None):
+        self.prescan()
+        self.find_packages(requirement)
+        for dist in self[requirement.key]:
+            if dist in requirement:
+                return dist
+            self.debug("%s does not match %s", requirement, dist)
+        return super(PackageIndex, self).obtain(requirement, installer)
+
+    def check_hash(self, checker, filename, tfp):
+        """
+        checker is a ContentChecker
+        """
+        checker.report(
+            self.debug,
+            "Validating %%s checksum for %s" % filename)
+        if not checker.is_valid():
+            tfp.close()
+            os.unlink(filename)
+            raise DistutilsError(
+                "%s validation failed for %s; "
+                "possible download problem?"
+                % (checker.hash.name, os.path.basename(filename))
+            )
+
+    def add_find_links(self, urls):
+        """Add `urls` to the list that will be prescanned for searches"""
+        for url in urls:
+            if (
+                self.to_scan is None  # if we have already "gone online"
+                or not URL_SCHEME(url)  # or it's a local file/directory
+                or url.startswith('file:')
+                or list(distros_for_url(url))  # or a direct package link
+            ):
+                # then go ahead and process it now
+                self.scan_url(url)
+            else:
+                # otherwise, defer retrieval till later
+                self.to_scan.append(url)
+
+    def prescan(self):
+        """Scan urls scheduled for prescanning (e.g. --find-links)"""
+        if self.to_scan:
+            list(map(self.scan_url, self.to_scan))
+        self.to_scan = None  # from now on, go ahead and process immediately
+
+    def not_found_in_index(self, requirement):
+        if self[requirement.key]:  # we've seen at least one distro
+            meth, msg = self.info, "Couldn't retrieve index page for %r"
+        else:  # no distros seen for this name, might be misspelled
+            meth, msg = (
+                self.warn,
+                "Couldn't find index page for %r (maybe misspelled?)")
+        meth(msg, requirement.unsafe_name)
+        self.scan_all()
+
+    def download(self, spec, tmpdir):
+        """Locate and/or download `spec` to `tmpdir`, returning a local path
+
+        `spec` may be a ``Requirement`` object, or a string containing a URL,
+        an existing local filename, or a project/version requirement spec
+        (i.e. the string form of a ``Requirement`` object).  If it is the URL
+        of a .py file with an unambiguous ``#egg=name-version`` tag (i.e., one
+        that escapes ``-`` as ``_`` throughout), a trivial ``setup.py`` is
+        automatically created alongside the downloaded file.
+
+        If `spec` is a ``Requirement`` object or a string containing a
+        project/version requirement spec, this method returns the location of
+        a matching distribution (possibly after downloading it to `tmpdir`).
+        If `spec` is a locally existing file or directory name, it is simply
+        returned unchanged.  If `spec` is a URL, it is downloaded to a subpath
+        of `tmpdir`, and the local filename is returned.  Various errors may be
+        raised if a problem occurs during downloading.
+        """
+        if not isinstance(spec, Requirement):
+            scheme = URL_SCHEME(spec)
+            if scheme:
+                # It's a url, download it to tmpdir
+                found = self._download_url(scheme.group(1), spec, tmpdir)
+                base, fragment = egg_info_for_url(spec)
+                if base.endswith('.py'):
+                    found = self.gen_setup(found, fragment, tmpdir)
+                return found
+            elif os.path.exists(spec):
+                # Existing file or directory, just return it
+                return spec
+            else:
+                spec = parse_requirement_arg(spec)
+        return getattr(self.fetch_distribution(spec, tmpdir), 'location', None)
+
+    def fetch_distribution(
+            self, requirement, tmpdir, force_scan=False, source=False,
+            develop_ok=False, local_index=None):
+        """Obtain a distribution suitable for fulfilling `requirement`
+
+        `requirement` must be a ``pkg_resources.Requirement`` instance.
+        If necessary, or if the `force_scan` flag is set, the requirement is
+        searched for in the (online) package index as well as the locally
+        installed packages.  If a distribution matching `requirement` is found,
+        the returned distribution's ``location`` is the value you would have
+        gotten from calling the ``download()`` method with the matching
+        distribution's URL or filename.  If no matching distribution is found,
+        ``None`` is returned.
+
+        If the `source` flag is set, only source distributions and source
+        checkout links will be considered.  Unless the `develop_ok` flag is
+        set, development and system eggs (i.e., those using the ``.egg-info``
+        format) will be ignored.
+        """
+        # process a Requirement
+        self.info("Searching for %s", requirement)
+        skipped = {}
+        dist = None
+
+        def find(req, env=None):
+            if env is None:
+                env = self
+            # Find a matching distribution; may be called more than once
+
+            for dist in env[req.key]:
+
+                if dist.precedence == DEVELOP_DIST and not develop_ok:
+                    if dist not in skipped:
+                        self.warn(
+                            "Skipping development or system egg: %s", dist,
+                        )
+                        skipped[dist] = 1
+                    continue
+
+                test = (
+                    dist in req
+                    and (dist.precedence <= SOURCE_DIST or not source)
+                )
+                if test:
+                    loc = self.download(dist.location, tmpdir)
+                    dist.download_location = loc
+                    if os.path.exists(dist.download_location):
+                        return dist
+
+        if force_scan:
+            self.prescan()
+            self.find_packages(requirement)
+            dist = find(requirement)
+
+        if not dist and local_index is not None:
+            dist = find(requirement, local_index)
+
+        if dist is None:
+            if self.to_scan is not None:
+                self.prescan()
+            dist = find(requirement)
+
+        if dist is None and not force_scan:
+            self.find_packages(requirement)
+            dist = find(requirement)
+
+        if dist is None:
+            self.warn(
+                "No local packages or working download links found for %s%s",
+                (source and "a source distribution of " or ""),
+                requirement,
+            )
+        else:
+            self.info("Best match: %s", dist)
+            return dist.clone(location=dist.download_location)
+
+    def fetch(self, requirement, tmpdir, force_scan=False, source=False):
+        """Obtain a file suitable for fulfilling `requirement`
+
+        DEPRECATED; use the ``fetch_distribution()`` method now instead.  For
+        backward compatibility, this routine is identical but returns the
+        ``location`` of the downloaded distribution instead of a distribution
+        object.
+        """
+        dist = self.fetch_distribution(requirement, tmpdir, force_scan, source)
+        if dist is not None:
+            return dist.location
+        return None
+
+    def gen_setup(self, filename, fragment, tmpdir):
+        match = EGG_FRAGMENT.match(fragment)
+        dists = match and [
+            d for d in
+            interpret_distro_name(filename, match.group(1), None) if d.version
+        ] or []
+
+        if len(dists) == 1:  # unambiguous ``#egg`` fragment
+            basename = os.path.basename(filename)
+
+            # Make sure the file has been downloaded to the temp dir.
+            if os.path.dirname(filename) != tmpdir:
+                dst = os.path.join(tmpdir, basename)
+                from setuptools.command.easy_install import samefile
+                if not samefile(filename, dst):
+                    shutil.copy2(filename, dst)
+                    filename = dst
+
+            with open(os.path.join(tmpdir, 'setup.py'), 'w') as file:
+                file.write(
+                    "from setuptools import setup\n"
+                    "setup(name=%r, version=%r, py_modules=[%r])\n"
+                    % (
+                        dists[0].project_name, dists[0].version,
+                        os.path.splitext(basename)[0]
+                    )
+                )
+            return filename
+
+        elif match:
+            raise DistutilsError(
+                "Can't unambiguously interpret project/version identifier %r; "
+                "any dashes in the name or version should be escaped using "
+                "underscores. %r" % (fragment, dists)
+            )
+        else:
+            raise DistutilsError(
+                "Can't process plain .py files without an '#egg=name-version'"
+                " suffix to enable automatic setup script generation."
+            )
+
+    dl_blocksize = 8192
+
+    def _download_to(self, url, filename):
+        self.info("Downloading %s", url)
+        # Download the file
+        fp = None
+        try:
+            checker = HashChecker.from_url(url)
+            fp = self.open_url(url)
+            if isinstance(fp, urllib.error.HTTPError):
+                raise DistutilsError(
+                    "Can't download %s: %s %s" % (url, fp.code, fp.msg)
+                )
+            headers = fp.info()
+            blocknum = 0
+            bs = self.dl_blocksize
+            size = -1
+            if "content-length" in headers:
+                # Some servers return multiple Content-Length headers :(
+                sizes = get_all_headers(headers, 'Content-Length')
+                size = max(map(int, sizes))
+                self.reporthook(url, filename, blocknum, bs, size)
+            with open(filename, 'wb') as tfp:
+                while True:
+                    block = fp.read(bs)
+                    if block:
+                        checker.feed(block)
+                        tfp.write(block)
+                        blocknum += 1
+                        self.reporthook(url, filename, blocknum, bs, size)
+                    else:
+                        break
+                self.check_hash(checker, filename, tfp)
+            return headers
+        finally:
+            if fp:
+                fp.close()
+
+    def reporthook(self, url, filename, blocknum, blksize, size):
+        pass  # no-op
+
+    def open_url(self, url, warning=None):
+        if url.startswith('file:'):
+            return local_open(url)
+        try:
+            return open_with_auth(url, self.opener)
+        except (ValueError, http_client.InvalidURL) as v:
+            msg = ' '.join([str(arg) for arg in v.args])
+            if warning:
+                self.warn(warning, msg)
+            else:
+                raise DistutilsError('%s %s' % (url, msg))
+        except urllib.error.HTTPError as v:
+            return v
+        except urllib.error.URLError as v:
+            if warning:
+                self.warn(warning, v.reason)
+            else:
+                raise DistutilsError("Download error for %s: %s"
+                                     % (url, v.reason))
+        except http_client.BadStatusLine as v:
+            if warning:
+                self.warn(warning, v.line)
+            else:
+                raise DistutilsError(
+                    '%s returned a bad status line. The server might be '
+                    'down, %s' %
+                    (url, v.line)
+                )
+        except (http_client.HTTPException, socket.error) as v:
+            if warning:
+                self.warn(warning, v)
+            else:
+                raise DistutilsError("Download error for %s: %s"
+                                     % (url, v))
+
+    def _download_url(self, scheme, url, tmpdir):
+        # Determine download filename
+        #
+        name, fragment = egg_info_for_url(url)
+        if name:
+            while '..' in name:
+                name = name.replace('..', '.').replace('\\', '_')
+        else:
+            name = "__downloaded__"  # default if URL has no path contents
+
+        if name.endswith('.egg.zip'):
+            name = name[:-4]  # strip the extra .zip before download
+
+        filename = os.path.join(tmpdir, name)
+
+        # Download the file
+        #
+        if scheme == 'svn' or scheme.startswith('svn+'):
+            return self._download_svn(url, filename)
+        elif scheme == 'git' or scheme.startswith('git+'):
+            return self._download_git(url, filename)
+        elif scheme.startswith('hg+'):
+            return self._download_hg(url, filename)
+        elif scheme == 'file':
+            return urllib.request.url2pathname(urllib.parse.urlparse(url)[2])
+        else:
+            self.url_ok(url, True)  # raises error if not allowed
+            return self._attempt_download(url, filename)
+
+    def scan_url(self, url):
+        self.process_url(url, True)
+
+    def _attempt_download(self, url, filename):
+        headers = self._download_to(url, filename)
+        if 'html' in headers.get('content-type', '').lower():
+            return self._download_html(url, headers, filename)
+        else:
+            return filename
+
+    def _download_html(self, url, headers, filename):
+        file = open(filename)
+        for line in file:
+            if line.strip():
+                # Check for a subversion index page
+                if re.search(r'<title>([^- ]+ - )?Revision \d+:', line):
+                    # it's a subversion index page:
+                    file.close()
+                    os.unlink(filename)
+                    return self._download_svn(url, filename)
+                break  # not an index page
+        file.close()
+        os.unlink(filename)
+        raise DistutilsError("Unexpected HTML page found at " + url)
+
+    def _download_svn(self, url, filename):
+        url = url.split('#', 1)[0]  # remove any fragment for svn's sake
+        creds = ''
+        if url.lower().startswith('svn:') and '@' in url:
+            scheme, netloc, path, p, q, f = urllib.parse.urlparse(url)
+            if not netloc and path.startswith('//') and '/' in path[2:]:
+                netloc, path = path[2:].split('/', 1)
+                auth, host = splituser(netloc)
+                if auth:
+                    if ':' in auth:
+                        user, pw = auth.split(':', 1)
+                        creds = " --username=%s --password=%s" % (user, pw)
+                    else:
+                        creds = " --username=" + auth
+                    netloc = host
+                    parts = scheme, netloc, url, p, q, f
+                    url = urllib.parse.urlunparse(parts)
+        self.info("Doing subversion checkout from %s to %s", url, filename)
+        os.system("svn checkout%s -q %s %s" % (creds, url, filename))
+        return filename
+
+    @staticmethod
+    def _vcs_split_rev_from_url(url, pop_prefix=False):
+        scheme, netloc, path, query, frag = urllib.parse.urlsplit(url)
+
+        scheme = scheme.split('+', 1)[-1]
+
+        # Some fragment identification fails
+        path = path.split('#', 1)[0]
+
+        rev = None
+        if '@' in path:
+            path, rev = path.rsplit('@', 1)
+
+        # Also, discard fragment
+        url = urllib.parse.urlunsplit((scheme, netloc, path, query, ''))
+
+        return url, rev
+
+    def _download_git(self, url, filename):
+        filename = filename.split('#', 1)[0]
+        url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
+
+        self.info("Doing git clone from %s to %s", url, filename)
+        os.system("git clone --quiet %s %s" % (url, filename))
+
+        if rev is not None:
+            self.info("Checking out %s", rev)
+            os.system("(cd %s && git checkout --quiet %s)" % (
+                filename,
+                rev,
+            ))
+
+        return filename
+
+    def _download_hg(self, url, filename):
+        filename = filename.split('#', 1)[0]
+        url, rev = self._vcs_split_rev_from_url(url, pop_prefix=True)
+
+        self.info("Doing hg clone from %s to %s", url, filename)
+        os.system("hg clone --quiet %s %s" % (url, filename))
+
+        if rev is not None:
+            self.info("Updating to %s", rev)
+            os.system("(cd %s && hg up -C -r %s -q)" % (
+                filename,
+                rev,
+            ))
+
+        return filename
+
+    def debug(self, msg, *args):
+        log.debug(msg, *args)
+
+    def info(self, msg, *args):
+        log.info(msg, *args)
+
+    def warn(self, msg, *args):
+        log.warn(msg, *args)
+
+
+# This pattern matches a character entity reference (a decimal numeric
+# references, a hexadecimal numeric reference, or a named reference).
+entity_sub = re.compile(r'&(#(\d+|x[\da-fA-F]+)|[\w.:-]+);?').sub
+
+
+def uchr(c):
+    if not isinstance(c, int):
+        return c
+    if c > 255:
+        return six.unichr(c)
+    return chr(c)
+
+
+def decode_entity(match):
+    what = match.group(1)
+    if what.startswith('#x'):
+        what = int(what[2:], 16)
+    elif what.startswith('#'):
+        what = int(what[1:])
+    else:
+        what = six.moves.html_entities.name2codepoint.get(what, match.group(0))
+    return uchr(what)
+
+
+def htmldecode(text):
+    """Decode HTML entities in the given text."""
+    return entity_sub(decode_entity, text)
+
+
+def socket_timeout(timeout=15):
+    def _socket_timeout(func):
+        def _socket_timeout(*args, **kwargs):
+            old_timeout = socket.getdefaulttimeout()
+            socket.setdefaulttimeout(timeout)
+            try:
+                return func(*args, **kwargs)
+            finally:
+                socket.setdefaulttimeout(old_timeout)
+
+        return _socket_timeout
+
+    return _socket_timeout
+
+
+def _encode_auth(auth):
+    """
+    A function compatible with Python 2.3-3.3 that will encode
+    auth from a URL suitable for an HTTP header.
+    >>> str(_encode_auth('username%3Apassword'))
+    'dXNlcm5hbWU6cGFzc3dvcmQ='
+
+    Long auth strings should not cause a newline to be inserted.
+    >>> long_auth = 'username:' + 'password'*10
+    >>> chr(10) in str(_encode_auth(long_auth))
+    False
+    """
+    auth_s = urllib.parse.unquote(auth)
+    # convert to bytes
+    auth_bytes = auth_s.encode()
+    # use the legacy interface for Python 2.3 support
+    encoded_bytes = base64.encodestring(auth_bytes)
+    # convert back to a string
+    encoded = encoded_bytes.decode()
+    # strip the trailing carriage return
+    return encoded.replace('\n', '')
+
+
+class Credential(object):
+    """
+    A username/password pair. Use like a namedtuple.
+    """
+
+    def __init__(self, username, password):
+        self.username = username
+        self.password = password
+
+    def __iter__(self):
+        yield self.username
+        yield self.password
+
+    def __str__(self):
+        return '%(username)s:%(password)s' % vars(self)
+
+
+class PyPIConfig(configparser.RawConfigParser):
+    def __init__(self):
+        """
+        Load from ~/.pypirc
+        """
+        defaults = dict.fromkeys(['username', 'password', 'repository'], '')
+        configparser.RawConfigParser.__init__(self, defaults)
+
+        rc = os.path.join(os.path.expanduser('~'), '.pypirc')
+        if os.path.exists(rc):
+            self.read(rc)
+
+    @property
+    def creds_by_repository(self):
+        sections_with_repositories = [
+            section for section in self.sections()
+            if self.get(section, 'repository').strip()
+        ]
+
+        return dict(map(self._get_repo_cred, sections_with_repositories))
+
+    def _get_repo_cred(self, section):
+        repo = self.get(section, 'repository').strip()
+        return repo, Credential(
+            self.get(section, 'username').strip(),
+            self.get(section, 'password').strip(),
+        )
+
+    def find_credential(self, url):
+        """
+        If the URL indicated appears to be a repository defined in this
+        config, return the credential for that repository.
+        """
+        for repository, cred in self.creds_by_repository.items():
+            if url.startswith(repository):
+                return cred
+
+
+def open_with_auth(url, opener=urllib.request.urlopen):
+    """Open a urllib2 request, handling HTTP authentication"""
+
+    scheme, netloc, path, params, query, frag = urllib.parse.urlparse(url)
+
+    # Double scheme does not raise on Mac OS X as revealed by a
+    # failing test. We would expect "nonnumeric port". Refs #20.
+    if netloc.endswith(':'):
+        raise http_client.InvalidURL("nonnumeric port: ''")
+
+    if scheme in ('http', 'https'):
+        auth, host = splituser(netloc)
+    else:
+        auth = None
+
+    if not auth:
+        cred = PyPIConfig().find_credential(url)
+        if cred:
+            auth = str(cred)
+            info = cred.username, url
+            log.info('Authenticating as %s for %s (from .pypirc)', *info)
+
+    if auth:
+        auth = "Basic " + _encode_auth(auth)
+        parts = scheme, host, path, params, query, frag
+        new_url = urllib.parse.urlunparse(parts)
+        request = urllib.request.Request(new_url)
+        request.add_header("Authorization", auth)
+    else:
+        request = urllib.request.Request(url)
+
+    request.add_header('User-Agent', user_agent)
+    fp = opener(request)
+
+    if auth:
+        # Put authentication info back into request URL if same host,
+        # so that links found on the page will work
+        s2, h2, path2, param2, query2, frag2 = urllib.parse.urlparse(fp.url)
+        if s2 == scheme and h2 == host:
+            parts = s2, netloc, path2, param2, query2, frag2
+            fp.url = urllib.parse.urlunparse(parts)
+
+    return fp
+
+
+# adding a timeout to avoid freezing package_index
+open_with_auth = socket_timeout(_SOCKET_TIMEOUT)(open_with_auth)
+
+
+def fix_sf_url(url):
+    return url  # backward compatibility
+
+
+def local_open(url):
+    """Read a local path, with special support for directories"""
+    scheme, server, path, param, query, frag = urllib.parse.urlparse(url)
+    filename = urllib.request.url2pathname(path)
+    if os.path.isfile(filename):
+        return urllib.request.urlopen(url)
+    elif path.endswith('/') and os.path.isdir(filename):
+        files = []
+        for f in os.listdir(filename):
+            filepath = os.path.join(filename, f)
+            if f == 'index.html':
+                with open(filepath, 'r') as fp:
+                    body = fp.read()
+                break
+            elif os.path.isdir(filepath):
+                f += '/'
+            files.append('<a href="{name}">{name}</a>'.format(name=f))
+        else:
+            tmpl = (
+                "<html><head><title>{url}</title>"
+                "</head><body>{files}</body></html>")
+            body = tmpl.format(url=url, files='\n'.join(files))
+        status, message = 200, "OK"
+    else:
+        status, message, body = 404, "Path not found", "Not found"
+
+    headers = {'content-type': 'text/html'}
+    body_stream = six.StringIO(body)
+    return urllib.error.HTTPError(url, status, message, headers, body_stream)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/pep425tags.py b/venv1/lib/python3.5/site-packages/setuptools/pep425tags.py
new file mode 100644
index 0000000..dfe55d5
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/pep425tags.py
@@ -0,0 +1,316 @@
+# This file originally from pip:
+# https://github.com/pypa/pip/blob/8f4f15a5a95d7d5b511ceaee9ed261176c181970/src/pip/_internal/pep425tags.py
+"""Generate and work with PEP 425 Compatibility Tags."""
+from __future__ import absolute_import
+
+import distutils.util
+import platform
+import re
+import sys
+import sysconfig
+import warnings
+from collections import OrderedDict
+
+from . import glibc
+
+_osx_arch_pat = re.compile(r'(.+)_(\d+)_(\d+)_(.+)')
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # Issue #1074
+        warnings.warn("{}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    if hasattr(sys, 'pypy_version_info'):
+        pyimpl = 'pp'
+    elif sys.platform.startswith('java'):
+        pyimpl = 'jy'
+    elif sys.platform == 'cli':
+        pyimpl = 'ip'
+    else:
+        pyimpl = 'cp'
+    return pyimpl
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_impl_tag():
+    """
+    Returns the Tag for this specific implementation.
+    """
+    return "{}{}".format(get_abbr_impl(), get_impl_ver())
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn("Config variable '{0}' is unset, Python ABI tag may "
+                          "be incorrect".format(var), RuntimeWarning, 2)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in {'cp', 'pp'} and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def _is_running_32bit():
+    return sys.maxsize == 2147483647
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    if sys.platform == 'darwin':
+        # distutils.util.get_platform() returns the release based on the value
+        # of MACOSX_DEPLOYMENT_TARGET on which Python was built, which may
+        # be significantly older than the user's current machine.
+        release, _, machine = platform.mac_ver()
+        split_ver = release.split('.')
+
+        if machine == "x86_64" and _is_running_32bit():
+            machine = "i386"
+        elif machine == "ppc64" and _is_running_32bit():
+            machine = "ppc"
+
+        return 'macosx_{}_{}_{}'.format(split_ver[0], split_ver[1], machine)
+
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and _is_running_32bit():
+        # 32 bit Python program (running on a 64 bit Linux): pip should only
+        # install and run 32 bit compiled extensions in that case.
+        result = "linux_i686"
+
+    return result
+
+
+def is_manylinux1_compatible():
+    # Only Linux, and only x86-64 / i686
+    if get_platform() not in {"linux_x86_64", "linux_i686"}:
+        return False
+
+    # Check for presence of _manylinux module
+    try:
+        import _manylinux
+        return bool(_manylinux.manylinux1_compatible)
+    except (ImportError, AttributeError):
+        # Fall through to heuristic check below
+        pass
+
+    # Check glibc version. CentOS 5 uses glibc 2.5.
+    return glibc.have_compatible_glibc(2, 5)
+
+
+def get_darwin_arches(major, minor, machine):
+    """Return a list of supported arches (including group arches) for
+    the given major, minor and machine architecture of an macOS machine.
+    """
+    arches = []
+
+    def _supports_arch(major, minor, arch):
+        # Looking at the application support for macOS versions in the chart
+        # provided by https://en.wikipedia.org/wiki/OS_X#Versions it appears
+        # our timeline looks roughly like:
+        #
+        # 10.0 - Introduces ppc support.
+        # 10.4 - Introduces ppc64, i386, and x86_64 support, however the ppc64
+        #        and x86_64 support is CLI only, and cannot be used for GUI
+        #        applications.
+        # 10.5 - Extends ppc64 and x86_64 support to cover GUI applications.
+        # 10.6 - Drops support for ppc64
+        # 10.7 - Drops support for ppc
+        #
+        # Given that we do not know if we're installing a CLI or a GUI
+        # application, we must be conservative and assume it might be a GUI
+        # application and behave as if ppc64 and x86_64 support did not occur
+        # until 10.5.
+        #
+        # Note: The above information is taken from the "Application support"
+        #       column in the chart not the "Processor support" since I believe
+        #       that we care about what instruction sets an application can use
+        #       not which processors the OS supports.
+        if arch == 'ppc':
+            return (major, minor) <= (10, 5)
+        if arch == 'ppc64':
+            return (major, minor) == (10, 5)
+        if arch == 'i386':
+            return (major, minor) >= (10, 4)
+        if arch == 'x86_64':
+            return (major, minor) >= (10, 5)
+        if arch in groups:
+            for garch in groups[arch]:
+                if _supports_arch(major, minor, garch):
+                    return True
+        return False
+
+    groups = OrderedDict([
+        ("fat", ("i386", "ppc")),
+        ("intel", ("x86_64", "i386")),
+        ("fat64", ("x86_64", "ppc64")),
+        ("fat32", ("x86_64", "i386", "ppc")),
+    ])
+
+    if _supports_arch(major, minor, machine):
+        arches.append(machine)
+
+    for garch in groups:
+        if machine in groups[garch] and _supports_arch(major, minor, garch):
+            arches.append(garch)
+
+    arches.append('universal')
+
+    return arches
+
+
+def get_supported(versions=None, noarch=False, platform=None,
+                  impl=None, abi=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    :param platform: specify the exact platform you want valid
+        tags for, or None. If None, use the local system platform.
+    :param impl: specify the exact implementation you want valid
+        tags for, or None. If None, use the local interpreter impl.
+    :param abi: specify the exact abi you want valid
+        tags for, or None. If None, use the local interpreter abi.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = impl or get_abbr_impl()
+
+    abis = []
+
+    abi = abi or get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    if not noarch:
+        arch = platform or get_platform()
+        if arch.startswith('macosx'):
+            # support macosx-10.6-intel on macosx-10.9-x86_64
+            match = _osx_arch_pat.match(arch)
+            if match:
+                name, major, minor, actual_arch = match.groups()
+                tpl = '{}_{}_%i_%s'.format(name, major)
+                arches = []
+                for m in reversed(range(int(minor) + 1)):
+                    for a in get_darwin_arches(int(major), m, actual_arch):
+                        arches.append(tpl % (m, a))
+            else:
+                # arch pattern didn't match (?!)
+                arches = [arch]
+        elif platform is None and is_manylinux1_compatible():
+            arches = [arch.replace('linux', 'manylinux1'), arch]
+        else:
+            arches = [arch]
+
+        # Current version, current API (built specifically for our Python):
+        for abi in abis:
+            for arch in arches:
+                supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+        # abi3 modules compatible with older version of Python
+        for version in versions[1:]:
+            # abi3 was introduced in Python 3.2
+            if version in {'31', '30'}:
+                break
+            for abi in abi3s:   # empty set if not Python 3
+                for arch in arches:
+                    supported.append(("%s%s" % (impl, version), abi, arch))
+
+        # Has binaries, does not use the Python API:
+        for arch in arches:
+            supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, but requires our implementation:
+    supported.append(('%s%s' % (impl, versions[0]), 'none', 'any'))
+    # Tagged specifically as being cross-version compatible
+    # (with just the major version specified)
+    supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
+
+
+implementation_tag = get_impl_tag()
diff --git a/venv1/lib/python3.5/site-packages/setuptools/py27compat.py b/venv1/lib/python3.5/site-packages/setuptools/py27compat.py
new file mode 100644
index 0000000..2985011
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/py27compat.py
@@ -0,0 +1,28 @@
+"""
+Compatibility Support for Python 2.7 and earlier
+"""
+
+import platform
+
+from setuptools.extern import six
+
+
+def get_all_headers(message, key):
+    """
+    Given an HTTPMessage, return all headers matching a given key.
+    """
+    return message.get_all(key)
+
+
+if six.PY2:
+    def get_all_headers(message, key):
+        return message.getheaders(key)
+
+
+linux_py2_ascii = (
+    platform.system() == 'Linux' and
+    six.PY2
+)
+
+rmtree_safe = str if linux_py2_ascii else lambda x: x
+"""Workaround for http://bugs.python.org/issue24672"""
diff --git a/venv1/lib/python3.5/site-packages/setuptools/py31compat.py b/venv1/lib/python3.5/site-packages/setuptools/py31compat.py
new file mode 100644
index 0000000..4ea9532
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/py31compat.py
@@ -0,0 +1,41 @@
+__all__ = ['get_config_vars', 'get_path']
+
+try:
+    # Python 2.7 or >=3.2
+    from sysconfig import get_config_vars, get_path
+except ImportError:
+    from distutils.sysconfig import get_config_vars, get_python_lib
+
+    def get_path(name):
+        if name not in ('platlib', 'purelib'):
+            raise ValueError("Name must be purelib or platlib")
+        return get_python_lib(name == 'platlib')
+
+
+try:
+    # Python >=3.2
+    from tempfile import TemporaryDirectory
+except ImportError:
+    import shutil
+    import tempfile
+
+    class TemporaryDirectory(object):
+        """
+        Very simple temporary directory context manager.
+        Will try to delete afterward, but will also ignore OS and similar
+        errors on deletion.
+        """
+
+        def __init__(self):
+            self.name = None  # Handle mkdtemp raising an exception
+            self.name = tempfile.mkdtemp()
+
+        def __enter__(self):
+            return self.name
+
+        def __exit__(self, exctype, excvalue, exctrace):
+            try:
+                shutil.rmtree(self.name, True)
+            except OSError:  # removal errors are not the only possible
+                pass
+            self.name = None
diff --git a/venv1/lib/python3.5/site-packages/setuptools/py33compat.py b/venv1/lib/python3.5/site-packages/setuptools/py33compat.py
new file mode 100644
index 0000000..af64d5d
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/py33compat.py
@@ -0,0 +1,45 @@
+import dis
+import array
+import collections
+
+from setuptools.extern import six
+
+
+OpArg = collections.namedtuple('OpArg', 'opcode arg')
+
+
+class Bytecode_compat(object):
+    def __init__(self, code):
+        self.code = code
+
+    def __iter__(self):
+        """Yield '(op,arg)' pair for each operation in code object 'code'"""
+
+        bytes = array.array('b', self.code.co_code)
+        eof = len(self.code.co_code)
+
+        ptr = 0
+        extended_arg = 0
+
+        while ptr < eof:
+
+            op = bytes[ptr]
+
+            if op >= dis.HAVE_ARGUMENT:
+
+                arg = bytes[ptr + 1] + bytes[ptr + 2] * 256 + extended_arg
+                ptr += 3
+
+                if op == dis.EXTENDED_ARG:
+                    long_type = six.integer_types[-1]
+                    extended_arg = arg * long_type(65536)
+                    continue
+
+            else:
+                arg = None
+                ptr += 1
+
+            yield OpArg(op, arg)
+
+
+Bytecode = getattr(dis, 'Bytecode', Bytecode_compat)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/py36compat.py b/venv1/lib/python3.5/site-packages/setuptools/py36compat.py
new file mode 100644
index 0000000..f527969
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/py36compat.py
@@ -0,0 +1,82 @@
+import sys
+from distutils.errors import DistutilsOptionError
+from distutils.util import strtobool
+from distutils.debug import DEBUG
+
+
+class Distribution_parse_config_files:
+    """
+    Mix-in providing forward-compatibility for functionality to be
+    included by default on Python 3.7.
+
+    Do not edit the code in this class except to update functionality
+    as implemented in distutils.
+    """
+    def parse_config_files(self, filenames=None):
+        from configparser import ConfigParser
+
+        # Ignore install directory options if we have a venv
+        if sys.prefix != sys.base_prefix:
+            ignore_options = [
+                'install-base', 'install-platbase', 'install-lib',
+                'install-platlib', 'install-purelib', 'install-headers',
+                'install-scripts', 'install-data', 'prefix', 'exec-prefix',
+                'home', 'user', 'root']
+        else:
+            ignore_options = []
+
+        ignore_options = frozenset(ignore_options)
+
+        if filenames is None:
+            filenames = self.find_config_files()
+
+        if DEBUG:
+            self.announce("Distribution.parse_config_files():")
+
+        parser = ConfigParser(interpolation=None)
+        for filename in filenames:
+            if DEBUG:
+                self.announce("  reading %s" % filename)
+            parser.read(filename)
+            for section in parser.sections():
+                options = parser.options(section)
+                opt_dict = self.get_option_dict(section)
+
+                for opt in options:
+                    if opt != '__name__' and opt not in ignore_options:
+                        val = parser.get(section,opt)
+                        opt = opt.replace('-', '_')
+                        opt_dict[opt] = (filename, val)
+
+            # Make the ConfigParser forget everything (so we retain
+            # the original filenames that options come from)
+            parser.__init__()
+
+        # If there was a "global" section in the config file, use it
+        # to set Distribution options.
+
+        if 'global' in self.command_options:
+            for (opt, (src, val)) in self.command_options['global'].items():
+                alias = self.negative_opt.get(opt)
+                try:
+                    if alias:
+                        setattr(self, alias, not strtobool(val))
+                    elif opt in ('verbose', 'dry_run'): # ugh!
+                        setattr(self, opt, strtobool(val))
+                    else:
+                        setattr(self, opt, val)
+                except ValueError as msg:
+                    raise DistutilsOptionError(msg)
+
+
+if sys.version_info < (3,):
+    # Python 2 behavior is sufficient
+    class Distribution_parse_config_files:
+        pass
+
+
+if False:
+    # When updated behavior is available upstream,
+    # disable override here.
+    class Distribution_parse_config_files:
+        pass
diff --git a/venv1/lib/python3.5/site-packages/setuptools/sandbox.py b/venv1/lib/python3.5/site-packages/setuptools/sandbox.py
new file mode 100644
index 0000000..685f3f7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/sandbox.py
@@ -0,0 +1,491 @@
+import os
+import sys
+import tempfile
+import operator
+import functools
+import itertools
+import re
+import contextlib
+import pickle
+import textwrap
+
+from setuptools.extern import six
+from setuptools.extern.six.moves import builtins, map
+
+import pkg_resources.py31compat
+
+if sys.platform.startswith('java'):
+    import org.python.modules.posix.PosixModule as _os
+else:
+    _os = sys.modules[os.name]
+try:
+    _file = file
+except NameError:
+    _file = None
+_open = open
+from distutils.errors import DistutilsError
+from pkg_resources import working_set
+
+
+__all__ = [
+    "AbstractSandbox", "DirectorySandbox", "SandboxViolation", "run_setup",
+]
+
+
+def _execfile(filename, globals, locals=None):
+    """
+    Python 3 implementation of execfile.
+    """
+    mode = 'rb'
+    with open(filename, mode) as stream:
+        script = stream.read()
+    if locals is None:
+        locals = globals
+    code = compile(script, filename, 'exec')
+    exec(code, globals, locals)
+
+
+@contextlib.contextmanager
+def save_argv(repl=None):
+    saved = sys.argv[:]
+    if repl is not None:
+        sys.argv[:] = repl
+    try:
+        yield saved
+    finally:
+        sys.argv[:] = saved
+
+
+@contextlib.contextmanager
+def save_path():
+    saved = sys.path[:]
+    try:
+        yield saved
+    finally:
+        sys.path[:] = saved
+
+
+@contextlib.contextmanager
+def override_temp(replacement):
+    """
+    Monkey-patch tempfile.tempdir with replacement, ensuring it exists
+    """
+    pkg_resources.py31compat.makedirs(replacement, exist_ok=True)
+
+    saved = tempfile.tempdir
+
+    tempfile.tempdir = replacement
+
+    try:
+        yield
+    finally:
+        tempfile.tempdir = saved
+
+
+@contextlib.contextmanager
+def pushd(target):
+    saved = os.getcwd()
+    os.chdir(target)
+    try:
+        yield saved
+    finally:
+        os.chdir(saved)
+
+
+class UnpickleableException(Exception):
+    """
+    An exception representing another Exception that could not be pickled.
+    """
+
+    @staticmethod
+    def dump(type, exc):
+        """
+        Always return a dumped (pickled) type and exc. If exc can't be pickled,
+        wrap it in UnpickleableException first.
+        """
+        try:
+            return pickle.dumps(type), pickle.dumps(exc)
+        except Exception:
+            # get UnpickleableException inside the sandbox
+            from setuptools.sandbox import UnpickleableException as cls
+            return cls.dump(cls, cls(repr(exc)))
+
+
+class ExceptionSaver:
+    """
+    A Context Manager that will save an exception, serialized, and restore it
+    later.
+    """
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, exc, tb):
+        if not exc:
+            return
+
+        # dump the exception
+        self._saved = UnpickleableException.dump(type, exc)
+        self._tb = tb
+
+        # suppress the exception
+        return True
+
+    def resume(self):
+        "restore and re-raise any exception"
+
+        if '_saved' not in vars(self):
+            return
+
+        type, exc = map(pickle.loads, self._saved)
+        six.reraise(type, exc, self._tb)
+
+
+@contextlib.contextmanager
+def save_modules():
+    """
+    Context in which imported modules are saved.
+
+    Translates exceptions internal to the context into the equivalent exception
+    outside the context.
+    """
+    saved = sys.modules.copy()
+    with ExceptionSaver() as saved_exc:
+        yield saved
+
+    sys.modules.update(saved)
+    # remove any modules imported since
+    del_modules = (
+        mod_name for mod_name in sys.modules
+        if mod_name not in saved
+        # exclude any encodings modules. See #285
+        and not mod_name.startswith('encodings.')
+    )
+    _clear_modules(del_modules)
+
+    saved_exc.resume()
+
+
+def _clear_modules(module_names):
+    for mod_name in list(module_names):
+        del sys.modules[mod_name]
+
+
+@contextlib.contextmanager
+def save_pkg_resources_state():
+    saved = pkg_resources.__getstate__()
+    try:
+        yield saved
+    finally:
+        pkg_resources.__setstate__(saved)
+
+
+@contextlib.contextmanager
+def setup_context(setup_dir):
+    temp_dir = os.path.join(setup_dir, 'temp')
+    with save_pkg_resources_state():
+        with save_modules():
+            hide_setuptools()
+            with save_path():
+                with save_argv():
+                    with override_temp(temp_dir):
+                        with pushd(setup_dir):
+                            # ensure setuptools commands are available
+                            __import__('setuptools')
+                            yield
+
+
+def _needs_hiding(mod_name):
+    """
+    >>> _needs_hiding('setuptools')
+    True
+    >>> _needs_hiding('pkg_resources')
+    True
+    >>> _needs_hiding('setuptools_plugin')
+    False
+    >>> _needs_hiding('setuptools.__init__')
+    True
+    >>> _needs_hiding('distutils')
+    True
+    >>> _needs_hiding('os')
+    False
+    >>> _needs_hiding('Cython')
+    True
+    """
+    pattern = re.compile(r'(setuptools|pkg_resources|distutils|Cython)(\.|$)')
+    return bool(pattern.match(mod_name))
+
+
+def hide_setuptools():
+    """
+    Remove references to setuptools' modules from sys.modules to allow the
+    invocation to import the most appropriate setuptools. This technique is
+    necessary to avoid issues such as #315 where setuptools upgrading itself
+    would fail to find a function declared in the metadata.
+    """
+    modules = filter(_needs_hiding, sys.modules)
+    _clear_modules(modules)
+
+
+def run_setup(setup_script, args):
+    """Run a distutils setup script, sandboxed in its directory"""
+    setup_dir = os.path.abspath(os.path.dirname(setup_script))
+    with setup_context(setup_dir):
+        try:
+            sys.argv[:] = [setup_script] + list(args)
+            sys.path.insert(0, setup_dir)
+            # reset to include setup dir, w/clean callback list
+            working_set.__init__()
+            working_set.callbacks.append(lambda dist: dist.activate())
+
+            # __file__ should be a byte string on Python 2 (#712)
+            dunder_file = (
+                setup_script
+                if isinstance(setup_script, str) else
+                setup_script.encode(sys.getfilesystemencoding())
+            )
+
+            with DirectorySandbox(setup_dir):
+                ns = dict(__file__=dunder_file, __name__='__main__')
+                _execfile(setup_script, ns)
+        except SystemExit as v:
+            if v.args and v.args[0]:
+                raise
+            # Normal exit, just return
+
+
+class AbstractSandbox:
+    """Wrap 'os' module and 'open()' builtin for virtualizing setup scripts"""
+
+    _active = False
+
+    def __init__(self):
+        self._attrs = [
+            name for name in dir(_os)
+            if not name.startswith('_') and hasattr(self, name)
+        ]
+
+    def _copy(self, source):
+        for name in self._attrs:
+            setattr(os, name, getattr(source, name))
+
+    def __enter__(self):
+        self._copy(self)
+        if _file:
+            builtins.file = self._file
+        builtins.open = self._open
+        self._active = True
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self._active = False
+        if _file:
+            builtins.file = _file
+        builtins.open = _open
+        self._copy(_os)
+
+    def run(self, func):
+        """Run 'func' under os sandboxing"""
+        with self:
+            return func()
+
+    def _mk_dual_path_wrapper(name):
+        original = getattr(_os, name)
+
+        def wrap(self, src, dst, *args, **kw):
+            if self._active:
+                src, dst = self._remap_pair(name, src, dst, *args, **kw)
+            return original(src, dst, *args, **kw)
+
+        return wrap
+
+    for name in ["rename", "link", "symlink"]:
+        if hasattr(_os, name):
+            locals()[name] = _mk_dual_path_wrapper(name)
+
+    def _mk_single_path_wrapper(name, original=None):
+        original = original or getattr(_os, name)
+
+        def wrap(self, path, *args, **kw):
+            if self._active:
+                path = self._remap_input(name, path, *args, **kw)
+            return original(path, *args, **kw)
+
+        return wrap
+
+    if _file:
+        _file = _mk_single_path_wrapper('file', _file)
+    _open = _mk_single_path_wrapper('open', _open)
+    for name in [
+        "stat", "listdir", "chdir", "open", "chmod", "chown", "mkdir",
+        "remove", "unlink", "rmdir", "utime", "lchown", "chroot", "lstat",
+        "startfile", "mkfifo", "mknod", "pathconf", "access"
+    ]:
+        if hasattr(_os, name):
+            locals()[name] = _mk_single_path_wrapper(name)
+
+    def _mk_single_with_return(name):
+        original = getattr(_os, name)
+
+        def wrap(self, path, *args, **kw):
+            if self._active:
+                path = self._remap_input(name, path, *args, **kw)
+                return self._remap_output(name, original(path, *args, **kw))
+            return original(path, *args, **kw)
+
+        return wrap
+
+    for name in ['readlink', 'tempnam']:
+        if hasattr(_os, name):
+            locals()[name] = _mk_single_with_return(name)
+
+    def _mk_query(name):
+        original = getattr(_os, name)
+
+        def wrap(self, *args, **kw):
+            retval = original(*args, **kw)
+            if self._active:
+                return self._remap_output(name, retval)
+            return retval
+
+        return wrap
+
+    for name in ['getcwd', 'tmpnam']:
+        if hasattr(_os, name):
+            locals()[name] = _mk_query(name)
+
+    def _validate_path(self, path):
+        """Called to remap or validate any path, whether input or output"""
+        return path
+
+    def _remap_input(self, operation, path, *args, **kw):
+        """Called for path inputs"""
+        return self._validate_path(path)
+
+    def _remap_output(self, operation, path):
+        """Called for path outputs"""
+        return self._validate_path(path)
+
+    def _remap_pair(self, operation, src, dst, *args, **kw):
+        """Called for path pairs like rename, link, and symlink operations"""
+        return (
+            self._remap_input(operation + '-from', src, *args, **kw),
+            self._remap_input(operation + '-to', dst, *args, **kw)
+        )
+
+
+if hasattr(os, 'devnull'):
+    _EXCEPTIONS = [os.devnull,]
+else:
+    _EXCEPTIONS = []
+
+
+class DirectorySandbox(AbstractSandbox):
+    """Restrict operations to a single subdirectory - pseudo-chroot"""
+
+    write_ops = dict.fromkeys([
+        "open", "chmod", "chown", "mkdir", "remove", "unlink", "rmdir",
+        "utime", "lchown", "chroot", "mkfifo", "mknod", "tempnam",
+    ])
+
+    _exception_patterns = [
+        # Allow lib2to3 to attempt to save a pickled grammar object (#121)
+        r'.*lib2to3.*\.pickle$',
+    ]
+    "exempt writing to paths that match the pattern"
+
+    def __init__(self, sandbox, exceptions=_EXCEPTIONS):
+        self._sandbox = os.path.normcase(os.path.realpath(sandbox))
+        self._prefix = os.path.join(self._sandbox, '')
+        self._exceptions = [
+            os.path.normcase(os.path.realpath(path))
+            for path in exceptions
+        ]
+        AbstractSandbox.__init__(self)
+
+    def _violation(self, operation, *args, **kw):
+        from setuptools.sandbox import SandboxViolation
+        raise SandboxViolation(operation, args, kw)
+
+    if _file:
+
+        def _file(self, path, mode='r', *args, **kw):
+            if mode not in ('r', 'rt', 'rb', 'rU', 'U') and not self._ok(path):
+                self._violation("file", path, mode, *args, **kw)
+            return _file(path, mode, *args, **kw)
+
+    def _open(self, path, mode='r', *args, **kw):
+        if mode not in ('r', 'rt', 'rb', 'rU', 'U') and not self._ok(path):
+            self._violation("open", path, mode, *args, **kw)
+        return _open(path, mode, *args, **kw)
+
+    def tmpnam(self):
+        self._violation("tmpnam")
+
+    def _ok(self, path):
+        active = self._active
+        try:
+            self._active = False
+            realpath = os.path.normcase(os.path.realpath(path))
+            return (
+                self._exempted(realpath)
+                or realpath == self._sandbox
+                or realpath.startswith(self._prefix)
+            )
+        finally:
+            self._active = active
+
+    def _exempted(self, filepath):
+        start_matches = (
+            filepath.startswith(exception)
+            for exception in self._exceptions
+        )
+        pattern_matches = (
+            re.match(pattern, filepath)
+            for pattern in self._exception_patterns
+        )
+        candidates = itertools.chain(start_matches, pattern_matches)
+        return any(candidates)
+
+    def _remap_input(self, operation, path, *args, **kw):
+        """Called for path inputs"""
+        if operation in self.write_ops and not self._ok(path):
+            self._violation(operation, os.path.realpath(path), *args, **kw)
+        return path
+
+    def _remap_pair(self, operation, src, dst, *args, **kw):
+        """Called for path pairs like rename, link, and symlink operations"""
+        if not self._ok(src) or not self._ok(dst):
+            self._violation(operation, src, dst, *args, **kw)
+        return (src, dst)
+
+    def open(self, file, flags, mode=0o777, *args, **kw):
+        """Called for low-level os.open()"""
+        if flags & WRITE_FLAGS and not self._ok(file):
+            self._violation("os.open", file, flags, mode, *args, **kw)
+        return _os.open(file, flags, mode, *args, **kw)
+
+
+WRITE_FLAGS = functools.reduce(
+    operator.or_, [getattr(_os, a, 0) for a in
+        "O_WRONLY O_RDWR O_APPEND O_CREAT O_TRUNC O_TEMPORARY".split()]
+)
+
+
+class SandboxViolation(DistutilsError):
+    """A setup script attempted to modify the filesystem outside the sandbox"""
+
+    tmpl = textwrap.dedent("""
+        SandboxViolation: {cmd}{args!r} {kwargs}
+
+        The package setup script has attempted to modify files on your system
+        that are not within the EasyInstall build area, and has been aborted.
+
+        This package cannot be safely installed by EasyInstall, and may not
+        support alternate installation locations even if you run its setup
+        script by hand.  Please inform the package's author and the EasyInstall
+        maintainers to find out if a fix or workaround is available.
+        """).lstrip()
+
+    def __str__(self):
+        cmd, args, kwargs = self.args
+        return self.tmpl.format(**locals())
diff --git a/venv1/lib/python3.5/site-packages/setuptools/script (dev).tmpl b/venv1/lib/python3.5/site-packages/setuptools/script (dev).tmpl
new file mode 100644
index 0000000..d58b1bb
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/script (dev).tmpl	
@@ -0,0 +1,5 @@
+# EASY-INSTALL-DEV-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').require(%(spec)r)
+__file__ = %(dev_path)r
+exec(compile(open(__file__).read(), __file__, 'exec'))
diff --git a/venv1/lib/python3.5/site-packages/setuptools/script.tmpl b/venv1/lib/python3.5/site-packages/setuptools/script.tmpl
new file mode 100644
index 0000000..ff5efbc
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/script.tmpl
@@ -0,0 +1,3 @@
+# EASY-INSTALL-SCRIPT: %(spec)r,%(script_name)r
+__requires__ = %(spec)r
+__import__('pkg_resources').run_script(%(spec)r, %(script_name)r)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/site-patch.py b/venv1/lib/python3.5/site-packages/setuptools/site-patch.py
new file mode 100644
index 0000000..0d2d2ff
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/site-patch.py
@@ -0,0 +1,74 @@
+def __boot():
+    import sys
+    import os
+    PYTHONPATH = os.environ.get('PYTHONPATH')
+    if PYTHONPATH is None or (sys.platform == 'win32' and not PYTHONPATH):
+        PYTHONPATH = []
+    else:
+        PYTHONPATH = PYTHONPATH.split(os.pathsep)
+
+    pic = getattr(sys, 'path_importer_cache', {})
+    stdpath = sys.path[len(PYTHONPATH):]
+    mydir = os.path.dirname(__file__)
+
+    for item in stdpath:
+        if item == mydir or not item:
+            continue  # skip if current dir. on Windows, or my own directory
+        importer = pic.get(item)
+        if importer is not None:
+            loader = importer.find_module('site')
+            if loader is not None:
+                # This should actually reload the current module
+                loader.load_module('site')
+                break
+        else:
+            try:
+                import imp  # Avoid import loop in Python >= 3.3
+                stream, path, descr = imp.find_module('site', [item])
+            except ImportError:
+                continue
+            if stream is None:
+                continue
+            try:
+                # This should actually reload the current module
+                imp.load_module('site', stream, path, descr)
+            finally:
+                stream.close()
+            break
+    else:
+        raise ImportError("Couldn't find the real 'site' module")
+
+    known_paths = dict([(makepath(item)[1], 1) for item in sys.path])  # 2.2 comp
+
+    oldpos = getattr(sys, '__egginsert', 0)  # save old insertion position
+    sys.__egginsert = 0  # and reset the current one
+
+    for item in PYTHONPATH:
+        addsitedir(item)
+
+    sys.__egginsert += oldpos  # restore effective old position
+
+    d, nd = makepath(stdpath[0])
+    insert_at = None
+    new_path = []
+
+    for item in sys.path:
+        p, np = makepath(item)
+
+        if np == nd and insert_at is None:
+            # We've hit the first 'system' path entry, so added entries go here
+            insert_at = len(new_path)
+
+        if np in known_paths or insert_at is None:
+            new_path.append(item)
+        else:
+            # new path after the insert point, back-insert it
+            new_path.insert(insert_at, item)
+            insert_at += 1
+
+    sys.path[:] = new_path
+
+
+if __name__ == 'site':
+    __boot()
+    del __boot
diff --git a/venv1/lib/python3.5/site-packages/setuptools/ssl_support.py b/venv1/lib/python3.5/site-packages/setuptools/ssl_support.py
new file mode 100644
index 0000000..6362f1f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/ssl_support.py
@@ -0,0 +1,260 @@
+import os
+import socket
+import atexit
+import re
+import functools
+
+from setuptools.extern.six.moves import urllib, http_client, map, filter
+
+from pkg_resources import ResolutionError, ExtractionError
+
+try:
+    import ssl
+except ImportError:
+    ssl = None
+
+__all__ = [
+    'VerifyingHTTPSHandler', 'find_ca_bundle', 'is_available', 'cert_paths',
+    'opener_for'
+]
+
+cert_paths = """
+/etc/pki/tls/certs/ca-bundle.crt
+/etc/ssl/certs/ca-certificates.crt
+/usr/share/ssl/certs/ca-bundle.crt
+/usr/local/share/certs/ca-root.crt
+/etc/ssl/cert.pem
+/System/Library/OpenSSL/certs/cert.pem
+/usr/local/share/certs/ca-root-nss.crt
+/etc/ssl/ca-bundle.pem
+""".strip().split()
+
+try:
+    HTTPSHandler = urllib.request.HTTPSHandler
+    HTTPSConnection = http_client.HTTPSConnection
+except AttributeError:
+    HTTPSHandler = HTTPSConnection = object
+
+is_available = ssl is not None and object not in (HTTPSHandler, HTTPSConnection)
+
+
+try:
+    from ssl import CertificateError, match_hostname
+except ImportError:
+    try:
+        from backports.ssl_match_hostname import CertificateError
+        from backports.ssl_match_hostname import match_hostname
+    except ImportError:
+        CertificateError = None
+        match_hostname = None
+
+if not CertificateError:
+
+    class CertificateError(ValueError):
+        pass
+
+
+if not match_hostname:
+
+    def _dnsname_match(dn, hostname, max_wildcards=1):
+        """Matching according to RFC 6125, section 6.4.3
+
+        http://tools.ietf.org/html/rfc6125#section-6.4.3
+        """
+        pats = []
+        if not dn:
+            return False
+
+        # Ported from python3-syntax:
+        # leftmost, *remainder = dn.split(r'.')
+        parts = dn.split(r'.')
+        leftmost = parts[0]
+        remainder = parts[1:]
+
+        wildcards = leftmost.count('*')
+        if wildcards > max_wildcards:
+            # Issue #17980: avoid denials of service by refusing more
+            # than one wildcard per fragment.  A survey of established
+            # policy among SSL implementations showed it to be a
+            # reasonable choice.
+            raise CertificateError(
+                "too many wildcards in certificate DNS name: " + repr(dn))
+
+        # speed up common case w/o wildcards
+        if not wildcards:
+            return dn.lower() == hostname.lower()
+
+        # RFC 6125, section 6.4.3, subitem 1.
+        # The client SHOULD NOT attempt to match a presented identifier in which
+        # the wildcard character comprises a label other than the left-most label.
+        if leftmost == '*':
+            # When '*' is a fragment by itself, it matches a non-empty dotless
+            # fragment.
+            pats.append('[^.]+')
+        elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
+            # RFC 6125, section 6.4.3, subitem 3.
+            # The client SHOULD NOT attempt to match a presented identifier
+            # where the wildcard character is embedded within an A-label or
+            # U-label of an internationalized domain name.
+            pats.append(re.escape(leftmost))
+        else:
+            # Otherwise, '*' matches any dotless string, e.g. www*
+            pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
+
+        # add the remaining fragments, ignore any wildcards
+        for frag in remainder:
+            pats.append(re.escape(frag))
+
+        pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
+        return pat.match(hostname)
+
+    def match_hostname(cert, hostname):
+        """Verify that *cert* (in decoded format as returned by
+        SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
+        rules are followed, but IP addresses are not accepted for *hostname*.
+
+        CertificateError is raised on failure. On success, the function
+        returns nothing.
+        """
+        if not cert:
+            raise ValueError("empty or no certificate")
+        dnsnames = []
+        san = cert.get('subjectAltName', ())
+        for key, value in san:
+            if key == 'DNS':
+                if _dnsname_match(value, hostname):
+                    return
+                dnsnames.append(value)
+        if not dnsnames:
+            # The subject is only checked when there is no dNSName entry
+            # in subjectAltName
+            for sub in cert.get('subject', ()):
+                for key, value in sub:
+                    # XXX according to RFC 2818, the most specific Common Name
+                    # must be used.
+                    if key == 'commonName':
+                        if _dnsname_match(value, hostname):
+                            return
+                        dnsnames.append(value)
+        if len(dnsnames) > 1:
+            raise CertificateError("hostname %r "
+                "doesn't match either of %s"
+                % (hostname, ', '.join(map(repr, dnsnames))))
+        elif len(dnsnames) == 1:
+            raise CertificateError("hostname %r "
+                "doesn't match %r"
+                % (hostname, dnsnames[0]))
+        else:
+            raise CertificateError("no appropriate commonName or "
+                "subjectAltName fields were found")
+
+
+class VerifyingHTTPSHandler(HTTPSHandler):
+    """Simple verifying handler: no auth, subclasses, timeouts, etc."""
+
+    def __init__(self, ca_bundle):
+        self.ca_bundle = ca_bundle
+        HTTPSHandler.__init__(self)
+
+    def https_open(self, req):
+        return self.do_open(
+            lambda host, **kw: VerifyingHTTPSConn(host, self.ca_bundle, **kw), req
+        )
+
+
+class VerifyingHTTPSConn(HTTPSConnection):
+    """Simple verifying connection: no auth, subclasses, timeouts, etc."""
+
+    def __init__(self, host, ca_bundle, **kw):
+        HTTPSConnection.__init__(self, host, **kw)
+        self.ca_bundle = ca_bundle
+
+    def connect(self):
+        sock = socket.create_connection(
+            (self.host, self.port), getattr(self, 'source_address', None)
+        )
+
+        # Handle the socket if a (proxy) tunnel is present
+        if hasattr(self, '_tunnel') and getattr(self, '_tunnel_host', None):
+            self.sock = sock
+            self._tunnel()
+            # http://bugs.python.org/issue7776: Python>=3.4.1 and >=2.7.7
+            # change self.host to mean the proxy server host when tunneling is
+            # being used. Adapt, since we are interested in the destination
+            # host for the match_hostname() comparison.
+            actual_host = self._tunnel_host
+        else:
+            actual_host = self.host
+
+        if hasattr(ssl, 'create_default_context'):
+            ctx = ssl.create_default_context(cafile=self.ca_bundle)
+            self.sock = ctx.wrap_socket(sock, server_hostname=actual_host)
+        else:
+            # This is for python < 2.7.9 and < 3.4?
+            self.sock = ssl.wrap_socket(
+                sock, cert_reqs=ssl.CERT_REQUIRED, ca_certs=self.ca_bundle
+            )
+        try:
+            match_hostname(self.sock.getpeercert(), actual_host)
+        except CertificateError:
+            self.sock.shutdown(socket.SHUT_RDWR)
+            self.sock.close()
+            raise
+
+
+def opener_for(ca_bundle=None):
+    """Get a urlopen() replacement that uses ca_bundle for verification"""
+    return urllib.request.build_opener(
+        VerifyingHTTPSHandler(ca_bundle or find_ca_bundle())
+    ).open
+
+
+# from jaraco.functools
+def once(func):
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        if not hasattr(func, 'always_returns'):
+            func.always_returns = func(*args, **kwargs)
+        return func.always_returns
+    return wrapper
+
+
+@once
+def get_win_certfile():
+    try:
+        import wincertstore
+    except ImportError:
+        return None
+
+    class CertFile(wincertstore.CertFile):
+        def __init__(self):
+            super(CertFile, self).__init__()
+            atexit.register(self.close)
+
+        def close(self):
+            try:
+                super(CertFile, self).close()
+            except OSError:
+                pass
+
+    _wincerts = CertFile()
+    _wincerts.addstore('CA')
+    _wincerts.addstore('ROOT')
+    return _wincerts.name
+
+
+def find_ca_bundle():
+    """Return an existing CA bundle path, or None"""
+    extant_cert_paths = filter(os.path.isfile, cert_paths)
+    return (
+        get_win_certfile()
+        or next(extant_cert_paths, None)
+        or _certifi_where()
+    )
+
+
+def _certifi_where():
+    try:
+        return __import__('certifi').where()
+    except (ImportError, ResolutionError, ExtractionError):
+        pass
diff --git a/venv1/lib/python3.5/site-packages/setuptools/unicode_utils.py b/venv1/lib/python3.5/site-packages/setuptools/unicode_utils.py
new file mode 100644
index 0000000..7c63efd
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/unicode_utils.py
@@ -0,0 +1,44 @@
+import unicodedata
+import sys
+
+from setuptools.extern import six
+
+
+# HFS Plus uses decomposed UTF-8
+def decompose(path):
+    if isinstance(path, six.text_type):
+        return unicodedata.normalize('NFD', path)
+    try:
+        path = path.decode('utf-8')
+        path = unicodedata.normalize('NFD', path)
+        path = path.encode('utf-8')
+    except UnicodeError:
+        pass  # Not UTF-8
+    return path
+
+
+def filesys_decode(path):
+    """
+    Ensure that the given path is decoded,
+    NONE when no expected encoding works
+    """
+
+    if isinstance(path, six.text_type):
+        return path
+
+    fs_enc = sys.getfilesystemencoding() or 'utf-8'
+    candidates = fs_enc, 'utf-8'
+
+    for enc in candidates:
+        try:
+            return path.decode(enc)
+        except UnicodeDecodeError:
+            continue
+
+
+def try_encode(string, enc):
+    "turn unicode encoding into a functional routine"
+    try:
+        return string.encode(enc)
+    except UnicodeEncodeError:
+        return None
diff --git a/venv1/lib/python3.5/site-packages/setuptools/version.py b/venv1/lib/python3.5/site-packages/setuptools/version.py
new file mode 100644
index 0000000..95e1869
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/version.py
@@ -0,0 +1,6 @@
+import pkg_resources
+
+try:
+    __version__ = pkg_resources.get_distribution('setuptools').version
+except Exception:
+    __version__ = 'unknown'
diff --git a/venv1/lib/python3.5/site-packages/setuptools/wheel.py b/venv1/lib/python3.5/site-packages/setuptools/wheel.py
new file mode 100644
index 0000000..9ffe434
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/wheel.py
@@ -0,0 +1,163 @@
+'''Wheels support.'''
+
+from distutils.util import get_platform
+import email
+import itertools
+import os
+import re
+import zipfile
+
+from pkg_resources import Distribution, PathMetadata, parse_version
+from pkg_resources.extern.six import PY3
+from setuptools import Distribution as SetuptoolsDistribution
+from setuptools import pep425tags
+from setuptools.command.egg_info import write_requirements
+
+
+WHEEL_NAME = re.compile(
+    r"""^(?P<project_name>.+?)-(?P<version>\d.*?)
+    ((-(?P<build>\d.*?))?-(?P<py_version>.+?)-(?P<abi>.+?)-(?P<platform>.+?)
+    )\.whl$""",
+re.VERBOSE).match
+
+NAMESPACE_PACKAGE_INIT = '''\
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    __path__ = __import__('pkgutil').extend_path(__path__, __name__)
+'''
+
+
+def unpack(src_dir, dst_dir):
+    '''Move everything under `src_dir` to `dst_dir`, and delete the former.'''
+    for dirpath, dirnames, filenames in os.walk(src_dir):
+        subdir = os.path.relpath(dirpath, src_dir)
+        for f in filenames:
+            src = os.path.join(dirpath, f)
+            dst = os.path.join(dst_dir, subdir, f)
+            os.renames(src, dst)
+        for n, d in reversed(list(enumerate(dirnames))):
+            src = os.path.join(dirpath, d)
+            dst = os.path.join(dst_dir, subdir, d)
+            if not os.path.exists(dst):
+                # Directory does not exist in destination,
+                # rename it and prune it from os.walk list.
+                os.renames(src, dst)
+                del dirnames[n]
+    # Cleanup.
+    for dirpath, dirnames, filenames in os.walk(src_dir, topdown=True):
+        assert not filenames
+        os.rmdir(dirpath)
+
+
+class Wheel(object):
+
+    def __init__(self, filename):
+        match = WHEEL_NAME(os.path.basename(filename))
+        if match is None:
+            raise ValueError('invalid wheel name: %r' % filename)
+        self.filename = filename
+        for k, v in match.groupdict().items():
+            setattr(self, k, v)
+
+    def tags(self):
+        '''List tags (py_version, abi, platform) supported by this wheel.'''
+        return itertools.product(self.py_version.split('.'),
+                                 self.abi.split('.'),
+                                 self.platform.split('.'))
+
+    def is_compatible(self):
+        '''Is the wheel is compatible with the current platform?'''
+        supported_tags = pep425tags.get_supported()
+        return next((True for t in self.tags() if t in supported_tags), False)
+
+    def egg_name(self):
+        return Distribution(
+            project_name=self.project_name, version=self.version,
+            platform=(None if self.platform == 'any' else get_platform()),
+        ).egg_name() + '.egg'
+
+    def install_as_egg(self, destination_eggdir):
+        '''Install wheel as an egg directory.'''
+        with zipfile.ZipFile(self.filename) as zf:
+            dist_basename = '%s-%s' % (self.project_name, self.version)
+            dist_info = '%s.dist-info' % dist_basename
+            dist_data = '%s.data' % dist_basename
+            def get_metadata(name):
+                with zf.open('%s/%s' % (dist_info, name)) as fp:
+                    value = fp.read().decode('utf-8') if PY3 else fp.read()
+                    return email.parser.Parser().parsestr(value)
+            wheel_metadata = get_metadata('WHEEL')
+            dist_metadata = get_metadata('METADATA')
+            # Check wheel format version is supported.
+            wheel_version = parse_version(wheel_metadata.get('Wheel-Version'))
+            if not parse_version('1.0') <= wheel_version < parse_version('2.0dev0'):
+                raise ValueError('unsupported wheel format version: %s' % wheel_version)
+            # Extract to target directory.
+            os.mkdir(destination_eggdir)
+            zf.extractall(destination_eggdir)
+            # Convert metadata.
+            dist_info = os.path.join(destination_eggdir, dist_info)
+            dist = Distribution.from_location(
+                destination_eggdir, dist_info,
+                metadata=PathMetadata(destination_eggdir, dist_info)
+            )
+            # Note: we need to evaluate and strip markers now,
+            # as we can't easily convert back from the syntax:
+            # foobar; "linux" in sys_platform and extra == 'test'
+            def raw_req(req):
+                req.marker = None
+                return str(req)
+            install_requires = list(sorted(map(raw_req, dist.requires())))
+            extras_require = {
+                extra: list(sorted(
+                    req
+                    for req in map(raw_req, dist.requires((extra,)))
+                    if req not in install_requires
+                ))
+                for extra in dist.extras
+            }
+            egg_info = os.path.join(destination_eggdir, 'EGG-INFO')
+            os.rename(dist_info, egg_info)
+            os.rename(os.path.join(egg_info, 'METADATA'),
+                      os.path.join(egg_info, 'PKG-INFO'))
+            setup_dist = SetuptoolsDistribution(attrs=dict(
+                install_requires=install_requires,
+                extras_require=extras_require,
+            ))
+            write_requirements(setup_dist.get_command_obj('egg_info'),
+                               None, os.path.join(egg_info, 'requires.txt'))
+            # Move data entries to their correct location.
+            dist_data = os.path.join(destination_eggdir, dist_data)
+            dist_data_scripts = os.path.join(dist_data, 'scripts')
+            if os.path.exists(dist_data_scripts):
+                egg_info_scripts = os.path.join(destination_eggdir,
+                                                'EGG-INFO', 'scripts')
+                os.mkdir(egg_info_scripts)
+                for entry in os.listdir(dist_data_scripts):
+                    # Remove bytecode, as it's not properly handled
+                    # during easy_install scripts install phase.
+                    if entry.endswith('.pyc'):
+                        os.unlink(os.path.join(dist_data_scripts, entry))
+                    else:
+                        os.rename(os.path.join(dist_data_scripts, entry),
+                                  os.path.join(egg_info_scripts, entry))
+                os.rmdir(dist_data_scripts)
+            for subdir in filter(os.path.exists, (
+                os.path.join(dist_data, d)
+                for d in ('data', 'headers', 'purelib', 'platlib')
+            )):
+                unpack(subdir, destination_eggdir)
+            if os.path.exists(dist_data):
+                os.rmdir(dist_data)
+            # Fix namespace packages.
+            namespace_packages = os.path.join(egg_info, 'namespace_packages.txt')
+            if os.path.exists(namespace_packages):
+                with open(namespace_packages) as fp:
+                    namespace_packages = fp.read().split()
+                for mod in namespace_packages:
+                    mod_dir = os.path.join(destination_eggdir, *mod.split('.'))
+                    mod_init = os.path.join(mod_dir, '__init__.py')
+                    if os.path.exists(mod_dir) and not os.path.exists(mod_init):
+                        with open(mod_init, 'w') as fp:
+                            fp.write(NAMESPACE_PACKAGE_INIT)
diff --git a/venv1/lib/python3.5/site-packages/setuptools/windows_support.py b/venv1/lib/python3.5/site-packages/setuptools/windows_support.py
new file mode 100644
index 0000000..cb977cf
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/setuptools/windows_support.py
@@ -0,0 +1,29 @@
+import platform
+import ctypes
+
+
+def windows_only(func):
+    if platform.system() != 'Windows':
+        return lambda *args, **kwargs: None
+    return func
+
+
+@windows_only
+def hide_file(path):
+    """
+    Set the hidden attribute on a file or directory.
+
+    From http://stackoverflow.com/questions/19622133/
+
+    `path` must be text.
+    """
+    __import__('ctypes.wintypes')
+    SetFileAttributes = ctypes.windll.kernel32.SetFileAttributesW
+    SetFileAttributes.argtypes = ctypes.wintypes.LPWSTR, ctypes.wintypes.DWORD
+    SetFileAttributes.restype = ctypes.wintypes.BOOL
+
+    FILE_ATTRIBUTE_HIDDEN = 0x02
+
+    ret = SetFileAttributes(path, FILE_ATTRIBUTE_HIDDEN)
+    if not ret:
+        raise ctypes.WinError()
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst
new file mode 100644
index 0000000..9f37cad
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/DESCRIPTION.rst
@@ -0,0 +1,340 @@
+Wheel
+=====
+
+A built-package format for Python.
+
+A wheel is a ZIP-format archive with a specially formatted filename
+and the .whl extension. It is designed to contain all the files for a
+PEP 376 compatible install in a way that is very close to the on-disk
+format. Many packages will be properly installed with only the "Unpack"
+step (simply extracting the file onto sys.path), and the unpacked archive
+preserves enough information to "Spread" (copy data and scripts to their
+final locations) at any later time.
+
+The wheel project provides a `bdist_wheel` command for setuptools
+(requires setuptools >= 0.8.0). Wheel files can be installed with a
+newer `pip` from https://github.com/pypa/pip or with wheel's own command
+line utility.
+
+The wheel documentation is at http://wheel.rtfd.org/. The file format
+is documented in PEP 427 (http://www.python.org/dev/peps/pep-0427/).
+
+The reference implementation is at https://github.com/pypa/wheel
+
+Why not egg?
+------------
+
+Python's egg format predates the packaging related standards we have
+today, the most important being PEP 376 "Database of Installed Python
+Distributions" which specifies the .dist-info directory (instead of
+.egg-info) and PEP 426 "Metadata for Python Software Packages 2.0"
+which specifies how to express dependencies (instead of requires.txt
+in .egg-info).
+
+Wheel implements these things. It also provides a richer file naming
+convention that communicates the Python implementation and ABI as well
+as simply the language version used in a particular package.
+
+Unlike .egg, wheel will be a fully-documented standard at the binary
+level that is truly easy to install even if you do not want to use the
+reference implementation.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the wheel project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
+0.30.0
+======
+- Added py-limited-api {cp32|cp33|cp34|...} flag to produce cpNN.abi3.{arch}
+  tags on CPython 3.
+- Documented the ``license_file`` metadata key
+- Improved Python, abi tagging for `wheel convert`. Thanks Ales Erjavec.
+- Fixed `>` being prepended to lines starting with "From" in the long description
+- Added support for specifying a build number (as per PEP 427).
+  Thanks Ian Cordasco.
+- Made the order of files in generated ZIP files deterministic.
+  Thanks Matthias Bach.
+- Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
+- Fixed `wheel install` clobbering existing files
+- Improved the error message when trying to verify an unsigned wheel file
+- Removed support for Python 2.6, 3.2 and 3.3.
+
+0.29.0
+======
+- Fix compression type of files in archive (Issue #155, Pull Request #62,
+  thanks Xavier Fernandez)
+
+0.28.0
+======
+- Fix file modes in archive (Issue #154)
+
+0.27.0
+======
+- Support forcing a platform tag using `--plat-name` on pure-Python wheels, as
+  well as nonstandard platform tags on non-pure wheels (Pull Request #60, Issue
+  #144, thanks Andrés Díaz)
+- Add SOABI tags to platform-specific wheels built for Python 2.X (Pull Request
+  #55, Issue #63, Issue #101)
+- Support reproducible wheel files, wheels that can be rebuilt and will hash to
+  the same values as previous builds (Pull Request #52, Issue #143, thanks
+  Barry Warsaw)
+- Support for changes in keyring >= 8.0 (Pull Request #61, thanks Jason R.
+  Coombs)
+- Use the file context manager when checking if dependency_links.txt is empty,
+  fixes problems building wheels under PyPy on Windows  (Issue #150, thanks
+  Cosimo Lupo)
+- Don't attempt to (recursively) create a build directory ending with `..`
+  (invalid on all platforms, but code was only executed on Windows) (Issue #91)
+- Added the PyPA Code of Conduct (Pull Request #56)
+
+0.26.0
+======
+- Fix multiple entrypoint comparison failure on Python 3 (Issue #148)
+
+0.25.0
+======
+- Add Python 3.5 to tox configuration
+- Deterministic (sorted) metadata
+- Fix tagging for Python 3.5 compatibility
+- Support py2-none-'arch' and py3-none-'arch' tags
+- Treat data-only wheels as pure
+- Write to temporary file and rename when using wheel install --force
+
+0.24.0
+======
+- The python tag used for pure-python packages is now .pyN (major version
+  only). This change actually occurred in 0.23.0 when the --python-tag
+  option was added, but was not explicitly mentioned in the changelog then.
+- wininst2wheel and egg2wheel removed. Use "wheel convert [archive]"
+  instead.
+- Wheel now supports setuptools style conditional requirements via the
+  extras_require={} syntax. Separate 'extra' names from conditions using
+  the : character. Wheel's own setup.py does this. (The empty-string
+  extra is the same as install_requires.) These conditional requirements
+  should work the same whether the package is installed by wheel or
+  by setup.py.
+
+0.23.0
+======
+- Compatibility tag flags added to the bdist_wheel command
+- sdist should include files necessary for tests
+- 'wheel convert' can now also convert unpacked eggs to wheel
+- Rename pydist.json to metadata.json to avoid stepping on the PEP
+- The --skip-scripts option has been removed, and not generating scripts is now
+  the default. The option was a temporary approach until installers could
+  generate scripts themselves. That is now the case with pip 1.5 and later.
+  Note that using pip 1.4 to install a wheel without scripts will leave the
+  installation without entry-point wrappers. The "wheel install-scripts"
+  command can be used to generate the scripts in such cases.
+- Thank you contributors
+
+0.22.0
+======
+- Include entry_points.txt, scripts a.k.a. commands, in experimental
+  pydist.json
+- Improved test_requires parsing
+- Python 2.6 fixes, "wheel version" command courtesy pombredanne
+
+0.21.0
+======
+- Pregenerated scripts are the default again.
+- "setup.py bdist_wheel --skip-scripts" turns them off.
+- setuptools is no longer a listed requirement for the 'wheel'
+  package. It is of course still required in order for bdist_wheel
+  to work.
+- "python -m wheel" avoids importing pkg_resources until it's necessary.
+
+0.20.0
+======
+- No longer include console_scripts in wheels. Ordinary scripts (shell files,
+  standalone Python files) are included as usual.
+- Include new command "python -m wheel install-scripts [distribution
+  [distribution ...]]" to install the console_scripts (setuptools-style
+  scripts using pkg_resources) for a distribution.
+
+0.19.0
+======
+- pymeta.json becomes pydist.json
+
+0.18.0
+======
+- Python 3 Unicode improvements
+
+0.17.0
+======
+- Support latest PEP-426 "pymeta.json" (json-format metadata)
+
+0.16.0
+======
+- Python 2.6 compatibility bugfix (thanks John McFarlane)
+- Non-prerelease version number
+
+1.0.0a2
+=======
+- Bugfix for C-extension tags for CPython 3.3 (using SOABI)
+
+1.0.0a1
+=======
+- Bugfix for bdist_wininst converter "wheel convert"
+- Bugfix for dists where "is pure" is None instead of True or False
+
+1.0.0a0
+=======
+- Update for version 1.0 of Wheel (PEP accepted).
+- Python 3 fix for moving Unicode Description to metadata body
+- Include rudimentary API documentation in Sphinx (thanks Kevin Horn)
+
+0.15.0
+======
+- Various improvements
+
+0.14.0
+======
+- Changed the signature format to better comply with the current JWS spec.
+  Breaks all existing signatures.
+- Include ``wheel unsign`` command to remove RECORD.jws from an archive.
+- Put the description in the newly allowed payload section of PKG-INFO
+  (METADATA) files.
+
+0.13.0
+======
+- Use distutils instead of sysconfig to get installation paths; can install
+  headers.
+- Improve WheelFile() sort.
+- Allow bootstrap installs without any pkg_resources.
+
+0.12.0
+======
+- Unit test for wheel.tool.install
+
+0.11.0
+======
+- API cleanup
+
+0.10.3
+======
+- Scripts fixer fix
+
+0.10.2
+======
+- Fix keygen
+
+0.10.1
+======
+- Preserve attributes on install.
+
+0.10.0
+======
+- Include a copy of pkg_resources. Wheel can now install into a virtualenv
+  that does not have distribute (though most packages still require
+  pkg_resources to actually work; wheel install distribute)
+- Define a new setup.cfg section [wheel]. universal=1 will
+  apply the py2.py3-none-any tag for pure python wheels.
+
+0.9.7
+=====
+- Only import dirspec when needed. dirspec is only needed to find the
+  configuration for keygen/signing operations.
+
+0.9.6
+=====
+- requires-dist from setup.cfg overwrites any requirements from setup.py
+  Care must be taken that the requirements are the same in both cases,
+  or just always install from wheel.
+- drop dirspec requirement on win32
+- improved command line utility, adds 'wheel convert [egg or wininst]' to
+  convert legacy binary formats to wheel
+
+0.9.5
+=====
+- Wheel's own wheel file can be executed by Python, and can install itself:
+  ``python wheel-0.9.5-py27-none-any/wheel install ...``
+- Use argparse; basic ``wheel install`` command should run with only stdlib
+  dependencies.
+- Allow requires_dist in setup.cfg's [metadata] section. In addition to
+  dependencies in setup.py, but will only be interpreted when installing
+  from wheel, not from sdist. Can be qualified with environment markers.
+
+0.9.4
+=====
+- Fix wheel.signatures in sdist
+
+0.9.3
+=====
+- Integrated digital signatures support without C extensions.
+- Integrated "wheel install" command (single package, no dependency
+  resolution) including compatibility check.
+- Support Python 3.3
+- Use Metadata 1.3 (PEP 426)
+
+0.9.2
+=====
+- Automatic signing if WHEEL_TOOL points to the wheel binary
+- Even more Python 3 fixes
+
+0.9.1
+=====
+- 'wheel sign' uses the keys generated by 'wheel keygen' (instead of generating
+  a new key at random each time)
+- Python 2/3 encoding/decoding fixes
+- Run tests on Python 2.6 (without signature verification)
+
+0.9
+===
+- Updated digital signatures scheme
+- Python 3 support for digital signatures
+- Always verify RECORD hashes on extract
+- "wheel" command line tool to sign, verify, unpack wheel files
+
+0.8
+===
+- none/any draft pep tags update
+- improved wininst2wheel script
+- doc changes and other improvements
+
+0.7
+===
+- sort .dist-info at end of wheel archive
+- Windows & Python 3 fixes from Paul Moore
+- pep8
+- scripts to convert wininst & egg to wheel
+
+0.6
+===
+- require distribute >= 0.6.28
+- stop using verlib
+
+0.5
+===
+- working pretty well
+
+0.4.2
+=====
+- hyphenated name fix
+
+0.4
+===
+- improve test coverage
+- improve Windows compatibility
+- include tox.ini courtesy of Marc Abramowitz
+- draft hmac sha-256 signing function
+
+0.3
+===
+- prototype egg2wheel conversion script
+
+0.2
+===
+- Python 3 compatibility
+
+0.1
+===
+- Initial version
+
+
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER
new file mode 100644
index 0000000..a1b589e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/INSTALLER
@@ -0,0 +1 @@
+pip
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt
new file mode 100644
index 0000000..c3441e6
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/LICENSE.txt
@@ -0,0 +1,22 @@
+"wheel" copyright (c) 2012-2014 Daniel Holth <dholth@fastmail.fm> and
+contributors.
+
+The MIT License
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA
new file mode 100644
index 0000000..52b6411
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/METADATA
@@ -0,0 +1,374 @@
+Metadata-Version: 2.0
+Name: wheel
+Version: 0.30.0
+Summary: A built-package format for Python.
+Home-page: https://github.com/pypa/wheel
+Author: Alex Grönholm
+Author-email: alex.gronholm@nextday.fi
+License: MIT
+Description-Content-Type: UNKNOWN
+Keywords: wheel,packaging
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 2.7
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3.4
+Classifier: Programming Language :: Python :: 3.5
+Classifier: Programming Language :: Python :: 3.6
+Provides-Extra: faster-signatures
+Requires-Dist: ed25519ll; extra == 'faster-signatures'
+Provides-Extra: signatures
+Requires-Dist: keyring; extra == 'signatures'
+Requires-Dist: keyrings.alt; extra == 'signatures'
+Provides-Extra: signatures
+Requires-Dist: pyxdg; sys_platform!="win32" and extra == 'signatures'
+Provides-Extra: test
+Requires-Dist: jsonschema; extra == 'test'
+Requires-Dist: pytest (>=3.0.0); extra == 'test'
+Requires-Dist: pytest-cov; extra == 'test'
+Provides-Extra: tool
+
+Wheel
+=====
+
+A built-package format for Python.
+
+A wheel is a ZIP-format archive with a specially formatted filename
+and the .whl extension. It is designed to contain all the files for a
+PEP 376 compatible install in a way that is very close to the on-disk
+format. Many packages will be properly installed with only the "Unpack"
+step (simply extracting the file onto sys.path), and the unpacked archive
+preserves enough information to "Spread" (copy data and scripts to their
+final locations) at any later time.
+
+The wheel project provides a `bdist_wheel` command for setuptools
+(requires setuptools >= 0.8.0). Wheel files can be installed with a
+newer `pip` from https://github.com/pypa/pip or with wheel's own command
+line utility.
+
+The wheel documentation is at http://wheel.rtfd.org/. The file format
+is documented in PEP 427 (http://www.python.org/dev/peps/pep-0427/).
+
+The reference implementation is at https://github.com/pypa/wheel
+
+Why not egg?
+------------
+
+Python's egg format predates the packaging related standards we have
+today, the most important being PEP 376 "Database of Installed Python
+Distributions" which specifies the .dist-info directory (instead of
+.egg-info) and PEP 426 "Metadata for Python Software Packages 2.0"
+which specifies how to express dependencies (instead of requires.txt
+in .egg-info).
+
+Wheel implements these things. It also provides a richer file naming
+convention that communicates the Python implementation and ABI as well
+as simply the language version used in a particular package.
+
+Unlike .egg, wheel will be a fully-documented standard at the binary
+level that is truly easy to install even if you do not want to use the
+reference implementation.
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the wheel project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PyPA Code of Conduct`_.
+
+.. _PyPA Code of Conduct: https://www.pypa.io/en/latest/code-of-conduct/
+
+
+0.30.0
+======
+- Added py-limited-api {cp32|cp33|cp34|...} flag to produce cpNN.abi3.{arch}
+  tags on CPython 3.
+- Documented the ``license_file`` metadata key
+- Improved Python, abi tagging for `wheel convert`. Thanks Ales Erjavec.
+- Fixed `>` being prepended to lines starting with "From" in the long description
+- Added support for specifying a build number (as per PEP 427).
+  Thanks Ian Cordasco.
+- Made the order of files in generated ZIP files deterministic.
+  Thanks Matthias Bach.
+- Made the order of requirements in metadata deterministic. Thanks Chris Lamb.
+- Fixed `wheel install` clobbering existing files
+- Improved the error message when trying to verify an unsigned wheel file
+- Removed support for Python 2.6, 3.2 and 3.3.
+
+0.29.0
+======
+- Fix compression type of files in archive (Issue #155, Pull Request #62,
+  thanks Xavier Fernandez)
+
+0.28.0
+======
+- Fix file modes in archive (Issue #154)
+
+0.27.0
+======
+- Support forcing a platform tag using `--plat-name` on pure-Python wheels, as
+  well as nonstandard platform tags on non-pure wheels (Pull Request #60, Issue
+  #144, thanks Andrés Díaz)
+- Add SOABI tags to platform-specific wheels built for Python 2.X (Pull Request
+  #55, Issue #63, Issue #101)
+- Support reproducible wheel files, wheels that can be rebuilt and will hash to
+  the same values as previous builds (Pull Request #52, Issue #143, thanks
+  Barry Warsaw)
+- Support for changes in keyring >= 8.0 (Pull Request #61, thanks Jason R.
+  Coombs)
+- Use the file context manager when checking if dependency_links.txt is empty,
+  fixes problems building wheels under PyPy on Windows  (Issue #150, thanks
+  Cosimo Lupo)
+- Don't attempt to (recursively) create a build directory ending with `..`
+  (invalid on all platforms, but code was only executed on Windows) (Issue #91)
+- Added the PyPA Code of Conduct (Pull Request #56)
+
+0.26.0
+======
+- Fix multiple entrypoint comparison failure on Python 3 (Issue #148)
+
+0.25.0
+======
+- Add Python 3.5 to tox configuration
+- Deterministic (sorted) metadata
+- Fix tagging for Python 3.5 compatibility
+- Support py2-none-'arch' and py3-none-'arch' tags
+- Treat data-only wheels as pure
+- Write to temporary file and rename when using wheel install --force
+
+0.24.0
+======
+- The python tag used for pure-python packages is now .pyN (major version
+  only). This change actually occurred in 0.23.0 when the --python-tag
+  option was added, but was not explicitly mentioned in the changelog then.
+- wininst2wheel and egg2wheel removed. Use "wheel convert [archive]"
+  instead.
+- Wheel now supports setuptools style conditional requirements via the
+  extras_require={} syntax. Separate 'extra' names from conditions using
+  the : character. Wheel's own setup.py does this. (The empty-string
+  extra is the same as install_requires.) These conditional requirements
+  should work the same whether the package is installed by wheel or
+  by setup.py.
+
+0.23.0
+======
+- Compatibility tag flags added to the bdist_wheel command
+- sdist should include files necessary for tests
+- 'wheel convert' can now also convert unpacked eggs to wheel
+- Rename pydist.json to metadata.json to avoid stepping on the PEP
+- The --skip-scripts option has been removed, and not generating scripts is now
+  the default. The option was a temporary approach until installers could
+  generate scripts themselves. That is now the case with pip 1.5 and later.
+  Note that using pip 1.4 to install a wheel without scripts will leave the
+  installation without entry-point wrappers. The "wheel install-scripts"
+  command can be used to generate the scripts in such cases.
+- Thank you contributors
+
+0.22.0
+======
+- Include entry_points.txt, scripts a.k.a. commands, in experimental
+  pydist.json
+- Improved test_requires parsing
+- Python 2.6 fixes, "wheel version" command courtesy pombredanne
+
+0.21.0
+======
+- Pregenerated scripts are the default again.
+- "setup.py bdist_wheel --skip-scripts" turns them off.
+- setuptools is no longer a listed requirement for the 'wheel'
+  package. It is of course still required in order for bdist_wheel
+  to work.
+- "python -m wheel" avoids importing pkg_resources until it's necessary.
+
+0.20.0
+======
+- No longer include console_scripts in wheels. Ordinary scripts (shell files,
+  standalone Python files) are included as usual.
+- Include new command "python -m wheel install-scripts [distribution
+  [distribution ...]]" to install the console_scripts (setuptools-style
+  scripts using pkg_resources) for a distribution.
+
+0.19.0
+======
+- pymeta.json becomes pydist.json
+
+0.18.0
+======
+- Python 3 Unicode improvements
+
+0.17.0
+======
+- Support latest PEP-426 "pymeta.json" (json-format metadata)
+
+0.16.0
+======
+- Python 2.6 compatibility bugfix (thanks John McFarlane)
+- Non-prerelease version number
+
+1.0.0a2
+=======
+- Bugfix for C-extension tags for CPython 3.3 (using SOABI)
+
+1.0.0a1
+=======
+- Bugfix for bdist_wininst converter "wheel convert"
+- Bugfix for dists where "is pure" is None instead of True or False
+
+1.0.0a0
+=======
+- Update for version 1.0 of Wheel (PEP accepted).
+- Python 3 fix for moving Unicode Description to metadata body
+- Include rudimentary API documentation in Sphinx (thanks Kevin Horn)
+
+0.15.0
+======
+- Various improvements
+
+0.14.0
+======
+- Changed the signature format to better comply with the current JWS spec.
+  Breaks all existing signatures.
+- Include ``wheel unsign`` command to remove RECORD.jws from an archive.
+- Put the description in the newly allowed payload section of PKG-INFO
+  (METADATA) files.
+
+0.13.0
+======
+- Use distutils instead of sysconfig to get installation paths; can install
+  headers.
+- Improve WheelFile() sort.
+- Allow bootstrap installs without any pkg_resources.
+
+0.12.0
+======
+- Unit test for wheel.tool.install
+
+0.11.0
+======
+- API cleanup
+
+0.10.3
+======
+- Scripts fixer fix
+
+0.10.2
+======
+- Fix keygen
+
+0.10.1
+======
+- Preserve attributes on install.
+
+0.10.0
+======
+- Include a copy of pkg_resources. Wheel can now install into a virtualenv
+  that does not have distribute (though most packages still require
+  pkg_resources to actually work; wheel install distribute)
+- Define a new setup.cfg section [wheel]. universal=1 will
+  apply the py2.py3-none-any tag for pure python wheels.
+
+0.9.7
+=====
+- Only import dirspec when needed. dirspec is only needed to find the
+  configuration for keygen/signing operations.
+
+0.9.6
+=====
+- requires-dist from setup.cfg overwrites any requirements from setup.py
+  Care must be taken that the requirements are the same in both cases,
+  or just always install from wheel.
+- drop dirspec requirement on win32
+- improved command line utility, adds 'wheel convert [egg or wininst]' to
+  convert legacy binary formats to wheel
+
+0.9.5
+=====
+- Wheel's own wheel file can be executed by Python, and can install itself:
+  ``python wheel-0.9.5-py27-none-any/wheel install ...``
+- Use argparse; basic ``wheel install`` command should run with only stdlib
+  dependencies.
+- Allow requires_dist in setup.cfg's [metadata] section. In addition to
+  dependencies in setup.py, but will only be interpreted when installing
+  from wheel, not from sdist. Can be qualified with environment markers.
+
+0.9.4
+=====
+- Fix wheel.signatures in sdist
+
+0.9.3
+=====
+- Integrated digital signatures support without C extensions.
+- Integrated "wheel install" command (single package, no dependency
+  resolution) including compatibility check.
+- Support Python 3.3
+- Use Metadata 1.3 (PEP 426)
+
+0.9.2
+=====
+- Automatic signing if WHEEL_TOOL points to the wheel binary
+- Even more Python 3 fixes
+
+0.9.1
+=====
+- 'wheel sign' uses the keys generated by 'wheel keygen' (instead of generating
+  a new key at random each time)
+- Python 2/3 encoding/decoding fixes
+- Run tests on Python 2.6 (without signature verification)
+
+0.9
+===
+- Updated digital signatures scheme
+- Python 3 support for digital signatures
+- Always verify RECORD hashes on extract
+- "wheel" command line tool to sign, verify, unpack wheel files
+
+0.8
+===
+- none/any draft pep tags update
+- improved wininst2wheel script
+- doc changes and other improvements
+
+0.7
+===
+- sort .dist-info at end of wheel archive
+- Windows & Python 3 fixes from Paul Moore
+- pep8
+- scripts to convert wininst & egg to wheel
+
+0.6
+===
+- require distribute >= 0.6.28
+- stop using verlib
+
+0.5
+===
+- working pretty well
+
+0.4.2
+=====
+- hyphenated name fix
+
+0.4
+===
+- improve test coverage
+- improve Windows compatibility
+- include tox.ini courtesy of Marc Abramowitz
+- draft hmac sha-256 signing function
+
+0.3
+===
+- prototype egg2wheel conversion script
+
+0.2
+===
+- Python 3 compatibility
+
+0.1
+===
+- Initial version
+
+
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD
new file mode 100644
index 0000000..a2cb2b7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/RECORD
@@ -0,0 +1,46 @@
+wheel/__init__.py,sha256=ja92NKda3sstt4uKroYgFATu736whcI33p3GJNdslLQ,96
+wheel/__main__.py,sha256=K--m7mq-27NO0fm-a8KlthkucCe0w_-0hVxL3uDujkU,419
+wheel/archive.py,sha256=oEv42UnpxkoFMKcLXQ9RD8a8oic4X3oe2_H5FAgJ7_M,2376
+wheel/bdist_wheel.py,sha256=qKWdyvpkdmuLB4_GGIZsjmlcMLZuZDd8tRvaQI0w_eo,18852
+wheel/decorator.py,sha256=U2K77ZZ8x3x5vSIGCcEeh8GAxB6rABB7AlDwRukaoCk,541
+wheel/egg2wheel.py,sha256=me4Iaz4idCvS-xjfAzfb2dXXlXx_w6AgLjH6hi1Bt1A,3043
+wheel/install.py,sha256=zYQ-A8uQi-R2PwMvOh64YMlQDplqYpcBVM0EmbxZu8Y,18417
+wheel/metadata.py,sha256=SzI1MtzITZJuAJuvUVzEWi60VhgDbXSV_hapyiX0rlw,11561
+wheel/paths.py,sha256=OAtaJgCivlKvJKw1qC3YbJypvp2d38Eka8GQWdBWNZw,1129
+wheel/pep425tags.py,sha256=Lk9zYm1rrHG1X3RKlf9plcwpsoSZT8UR7fG3jhaoZrQ,5760
+wheel/pkginfo.py,sha256=GR76kupQzn1x9sKDaXuE6B6FsZ4OkfRtG7pndlXPvQ4,1257
+wheel/util.py,sha256=eJB-mrhMAaCGcoKhTLDYdpCf5N8BMLtX4usW_7qeZBg,4732
+wheel/wininst2wheel.py,sha256=afPAHWwa7FY0IkpG-BuuuY-dlB93VmFPrXff511NkBk,7772
+wheel/signatures/__init__.py,sha256=O7kZICZvXxN5YRkCYrPmAEr1LpGaZKJh5sLPWIRIoYE,3766
+wheel/signatures/djbec.py,sha256=jnfWxdS7dwLjiO6n0hy-4jLa_71SPrKWL0-7ocDrSHc,7035
+wheel/signatures/ed25519py.py,sha256=nFKDMq4LW2iJKk4IZKMxY46GyZNYPKxuWha9xYHk9lE,1669
+wheel/signatures/keys.py,sha256=k4j4yGZL31Dt2pa5TneIEeq6qkVIXEPExmFxiZxpE1Y,3299
+wheel/tool/__init__.py,sha256=rOy5VFvj-gTKgMwi_u2_iNu_Pq6aqw4rEfaciDTbmwg,13421
+wheel-0.30.0.dist-info/DESCRIPTION.rst,sha256=Alb3Ol--LhPgmWuBBPfzu54xzQ8J2skWNV34XCjhe0k,10549
+wheel-0.30.0.dist-info/LICENSE.txt,sha256=zKniDGrx_Pv2lAjzd3aShsvuvN7TNhAMm0o_NfvmNeQ,1125
+wheel-0.30.0.dist-info/METADATA,sha256=fYLxr6baQD-wDn4Yu8t-8fF7PJuiBTcThsl2UKBE7kg,11815
+wheel-0.30.0.dist-info/RECORD,,
+wheel-0.30.0.dist-info/WHEEL,sha256=kdsN-5OJAZIiHN-iO4Rhl82KyS0bDWf4uBwMbkNafr8,110
+wheel-0.30.0.dist-info/entry_points.txt,sha256=pTyeGVsucyfr_BXe5OQKuA1Bp5YKaIAWy5pejkq4Qx0,109
+wheel-0.30.0.dist-info/metadata.json,sha256=neXQocJnVqPTjr4zpuOVdxBGCmjrTsOs76AvP8ngyJY,1522
+wheel-0.30.0.dist-info/top_level.txt,sha256=HxSBIbgEstMPe4eFawhA66Mq-QYHMopXVoAncfjb_1c,6
+../../../bin/wheel,sha256=olqPB_V2t3iyk-J0bzYZ63_C0nTqD2IvxE8-mf5vwOE,257
+wheel-0.30.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+wheel/__pycache__/__main__.cpython-35.pyc,,
+wheel/__pycache__/wininst2wheel.cpython-35.pyc,,
+wheel/__pycache__/archive.cpython-35.pyc,,
+wheel/__pycache__/util.cpython-35.pyc,,
+wheel/__pycache__/metadata.cpython-35.pyc,,
+wheel/__pycache__/bdist_wheel.cpython-35.pyc,,
+wheel/signatures/__pycache__/djbec.cpython-35.pyc,,
+wheel/__pycache__/pkginfo.cpython-35.pyc,,
+wheel/signatures/__pycache__/ed25519py.cpython-35.pyc,,
+wheel/__pycache__/paths.cpython-35.pyc,,
+wheel/__pycache__/__init__.cpython-35.pyc,,
+wheel/__pycache__/install.cpython-35.pyc,,
+wheel/signatures/__pycache__/__init__.cpython-35.pyc,,
+wheel/tool/__pycache__/__init__.cpython-35.pyc,,
+wheel/__pycache__/pep425tags.cpython-35.pyc,,
+wheel/__pycache__/decorator.cpython-35.pyc,,
+wheel/signatures/__pycache__/keys.cpython-35.pyc,,
+wheel/__pycache__/egg2wheel.cpython-35.pyc,,
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL
new file mode 100644
index 0000000..7332a41
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/WHEEL
@@ -0,0 +1,6 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.30.0)
+Root-Is-Purelib: true
+Tag: py2-none-any
+Tag: py3-none-any
+
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt
new file mode 100644
index 0000000..4ad253e
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/entry_points.txt
@@ -0,0 +1,6 @@
+[console_scripts]
+wheel = wheel.tool:main
+
+[distutils.commands]
+bdist_wheel = wheel.bdist_wheel:bdist_wheel
+
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json
new file mode 100644
index 0000000..709ccac
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/metadata.json
@@ -0,0 +1 @@
+{"classifiers": ["Development Status :: 5 - Production/Stable", "Intended Audience :: Developers", "License :: OSI Approved :: MIT License", "Programming Language :: Python", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6"], "description_content_type": "UNKNOWN", "extensions": {"python.commands": {"wrap_console": {"wheel": "wheel.tool:main"}}, "python.details": {"contacts": [{"email": "alex.gronholm@nextday.fi", "name": "Alex Gr\u00f6nholm", "role": "author"}], "document_names": {"description": "DESCRIPTION.rst", "license": "LICENSE.txt"}, "project_urls": {"Home": "https://github.com/pypa/wheel"}}, "python.exports": {"console_scripts": {"wheel": "wheel.tool:main"}, "distutils.commands": {"bdist_wheel": "wheel.bdist_wheel:bdist_wheel"}}}, "extras": ["faster-signatures", "signatures", "test", "tool"], "generator": "bdist_wheel (0.30.0)", "keywords": ["wheel", "packaging"], "license": "MIT", "metadata_version": "2.0", "name": "wheel", "run_requires": [{"extra": "faster-signatures", "requires": ["ed25519ll"]}, {"extra": "test", "requires": ["jsonschema", "pytest (>=3.0.0)", "pytest-cov"]}, {"extra": "signatures", "requires": ["keyring", "keyrings.alt"]}, {"environment": "sys_platform!=\"win32\"", "extra": "signatures", "requires": ["pyxdg"]}], "summary": "A built-package format for Python.", "version": "0.30.0"}
\ No newline at end of file
diff --git a/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt
new file mode 100644
index 0000000..2309722
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel-0.30.0.dist-info/top_level.txt
@@ -0,0 +1 @@
+wheel
diff --git a/venv1/lib/python3.5/site-packages/wheel/__init__.py b/venv1/lib/python3.5/site-packages/wheel/__init__.py
new file mode 100644
index 0000000..64cd668
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/__init__.py
@@ -0,0 +1,2 @@
+# __variables__ with double-quoted values will be available in setup.py:
+__version__ = "0.30.0"
diff --git a/venv1/lib/python3.5/site-packages/wheel/__main__.py b/venv1/lib/python3.5/site-packages/wheel/__main__.py
new file mode 100644
index 0000000..8f0c4fe
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/__main__.py
@@ -0,0 +1,19 @@
+"""
+Wheel command line tool (enable python -m wheel syntax)
+"""
+
+import sys
+
+
+def main():  # needed for console script
+    if __package__ == '':
+        # To be able to run 'python wheel-0.9.whl/wheel':
+        import os.path
+        path = os.path.dirname(os.path.dirname(__file__))
+        sys.path[0:0] = [path]
+    import wheel.tool
+    sys.exit(wheel.tool.main())
+
+
+if __name__ == "__main__":
+    sys.exit(main())
diff --git a/venv1/lib/python3.5/site-packages/wheel/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/wheel/__pycache__/__init__.cpython-35.pyc
new file mode 100644
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diff --git a/venv1/lib/python3.5/site-packages/wheel/archive.py b/venv1/lib/python3.5/site-packages/wheel/archive.py
new file mode 100644
index 0000000..5b1647a
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/archive.py
@@ -0,0 +1,80 @@
+"""
+Archive tools for wheel.
+"""
+
+import os
+import os.path
+import time
+import zipfile
+from distutils import log
+
+
+def archive_wheelfile(base_name, base_dir):
+    """Archive all files under `base_dir` in a whl file and name it like
+    `base_name`.
+    """
+    olddir = os.path.abspath(os.curdir)
+    base_name = os.path.abspath(base_name)
+    try:
+        os.chdir(base_dir)
+        return make_wheelfile_inner(base_name)
+    finally:
+        os.chdir(olddir)
+
+
+def make_wheelfile_inner(base_name, base_dir='.'):
+    """Create a whl file from all the files under 'base_dir'.
+
+    Places .dist-info at the end of the archive."""
+
+    zip_filename = base_name + ".whl"
+
+    log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
+
+    # Some applications need reproducible .whl files, but they can't do this
+    # without forcing the timestamp of the individual ZipInfo objects.  See
+    # issue #143.
+    timestamp = os.environ.get('SOURCE_DATE_EPOCH')
+    if timestamp is None:
+        date_time = None
+    else:
+        date_time = time.gmtime(int(timestamp))[0:6]
+
+    # XXX support bz2, xz when available
+    zip = zipfile.ZipFile(zip_filename, "w", compression=zipfile.ZIP_DEFLATED)
+
+    score = {'WHEEL': 1, 'METADATA': 2, 'RECORD': 3}
+    deferred = []
+
+    def writefile(path, date_time):
+        st = os.stat(path)
+        if date_time is None:
+            mtime = time.gmtime(st.st_mtime)
+            date_time = mtime[0:6]
+        zinfo = zipfile.ZipInfo(path, date_time)
+        zinfo.external_attr = st.st_mode << 16
+        zinfo.compress_type = zipfile.ZIP_DEFLATED
+        with open(path, 'rb') as fp:
+            zip.writestr(zinfo, fp.read())
+        log.info("adding '%s'" % path)
+
+    for dirpath, dirnames, filenames in os.walk(base_dir):
+        # Sort the directory names so that `os.walk` will walk them in a
+        # defined order on the next iteration.
+        dirnames.sort()
+        for name in sorted(filenames):
+            path = os.path.normpath(os.path.join(dirpath, name))
+
+            if os.path.isfile(path):
+                if dirpath.endswith('.dist-info'):
+                    deferred.append((score.get(name, 0), path))
+                else:
+                    writefile(path, date_time)
+
+    deferred.sort()
+    for score, path in deferred:
+        writefile(path, date_time)
+
+    zip.close()
+
+    return zip_filename
diff --git a/venv1/lib/python3.5/site-packages/wheel/bdist_wheel.py b/venv1/lib/python3.5/site-packages/wheel/bdist_wheel.py
new file mode 100644
index 0000000..7fbeb4b
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/bdist_wheel.py
@@ -0,0 +1,482 @@
+"""
+Create a wheel (.whl) distribution.
+
+A wheel is a built archive format.
+"""
+
+import csv
+import hashlib
+import os
+import subprocess
+import warnings
+import shutil
+import json
+import sys
+import re
+from email.generator import Generator
+from distutils.core import Command
+from distutils.sysconfig import get_python_version
+from distutils import log as logger
+from shutil import rmtree
+
+import pkg_resources
+
+from .pep425tags import get_abbr_impl, get_impl_ver, get_abi_tag, get_platform
+from .util import native, open_for_csv
+from .archive import archive_wheelfile
+from .pkginfo import read_pkg_info, write_pkg_info
+from .metadata import pkginfo_to_dict
+from . import pep425tags, metadata
+from . import __version__ as wheel_version
+
+
+safe_name = pkg_resources.safe_name
+safe_version = pkg_resources.safe_version
+
+PY_LIMITED_API_PATTERN = r'cp3\d'
+
+
+def safer_name(name):
+    return safe_name(name).replace('-', '_')
+
+
+def safer_version(version):
+    return safe_version(version).replace('-', '_')
+
+
+class bdist_wheel(Command):
+
+    description = 'create a wheel distribution'
+
+    user_options = [('bdist-dir=', 'b',
+                     "temporary directory for creating the distribution"),
+                    ('plat-name=', 'p',
+                     "platform name to embed in generated filenames "
+                     "(default: %s)" % get_platform()),
+                    ('keep-temp', 'k',
+                     "keep the pseudo-installation tree around after " +
+                     "creating the distribution archive"),
+                    ('dist-dir=', 'd',
+                     "directory to put final built distributions in"),
+                    ('skip-build', None,
+                     "skip rebuilding everything (for testing/debugging)"),
+                    ('relative', None,
+                     "build the archive using relative paths"
+                     "(default: false)"),
+                    ('owner=', 'u',
+                     "Owner name used when creating a tar file"
+                     " [default: current user]"),
+                    ('group=', 'g',
+                     "Group name used when creating a tar file"
+                     " [default: current group]"),
+                    ('universal', None,
+                     "make a universal wheel"
+                     " (default: false)"),
+                    ('python-tag=', None,
+                     "Python implementation compatibility tag"
+                     " (default: py%s)" % get_impl_ver()[0]),
+                    ('build-number=', None,
+                     "Build number for this particular version. "
+                     "As specified in PEP-0427, this must start with a digit. "
+                     "[default: None]"),
+                    ('py-limited-api=', None,
+                     "Python tag (cp32|cp33|cpNN) for abi3 wheel tag"
+                     " (default: false)"),
+                    ]
+
+    boolean_options = ['keep-temp', 'skip-build', 'relative', 'universal']
+
+    def initialize_options(self):
+        self.bdist_dir = None
+        self.data_dir = None
+        self.plat_name = None
+        self.plat_tag = None
+        self.format = 'zip'
+        self.keep_temp = False
+        self.dist_dir = None
+        self.distinfo_dir = None
+        self.egginfo_dir = None
+        self.root_is_pure = None
+        self.skip_build = None
+        self.relative = False
+        self.owner = None
+        self.group = None
+        self.universal = False
+        self.python_tag = 'py' + get_impl_ver()[0]
+        self.build_number = None
+        self.py_limited_api = False
+        self.plat_name_supplied = False
+
+    def finalize_options(self):
+        if self.bdist_dir is None:
+            bdist_base = self.get_finalized_command('bdist').bdist_base
+            self.bdist_dir = os.path.join(bdist_base, 'wheel')
+
+        self.data_dir = self.wheel_dist_name + '.data'
+        self.plat_name_supplied = self.plat_name is not None
+
+        need_options = ('dist_dir', 'plat_name', 'skip_build')
+
+        self.set_undefined_options('bdist',
+                                   *zip(need_options, need_options))
+
+        self.root_is_pure = not (self.distribution.has_ext_modules()
+                                 or self.distribution.has_c_libraries())
+
+        if self.py_limited_api and not re.match(PY_LIMITED_API_PATTERN, self.py_limited_api):
+            raise ValueError("py-limited-api must match '%s'" % PY_LIMITED_API_PATTERN)
+
+        # Support legacy [wheel] section for setting universal
+        wheel = self.distribution.get_option_dict('wheel')
+        if 'universal' in wheel:
+            # please don't define this in your global configs
+            val = wheel['universal'][1].strip()
+            if val.lower() in ('1', 'true', 'yes'):
+                self.universal = True
+
+        if self.build_number is not None and not self.build_number[:1].isdigit():
+            raise ValueError("Build tag (build-number) must start with a digit.")
+
+    @property
+    def wheel_dist_name(self):
+        """Return distribution full name with - replaced with _"""
+        components = (safer_name(self.distribution.get_name()),
+                      safer_version(self.distribution.get_version()))
+        if self.build_number:
+            components += (self.build_number,)
+        return '-'.join(components)
+
+    def get_tag(self):
+        # bdist sets self.plat_name if unset, we should only use it for purepy
+        # wheels if the user supplied it.
+        if self.plat_name_supplied:
+            plat_name = self.plat_name
+        elif self.root_is_pure:
+            plat_name = 'any'
+        else:
+            plat_name = self.plat_name or get_platform()
+            if plat_name in ('linux-x86_64', 'linux_x86_64') and sys.maxsize == 2147483647:
+                plat_name = 'linux_i686'
+        plat_name = plat_name.replace('-', '_').replace('.', '_')
+
+        if self.root_is_pure:
+            if self.universal:
+                impl = 'py2.py3'
+            else:
+                impl = self.python_tag
+            tag = (impl, 'none', plat_name)
+        else:
+            impl_name = get_abbr_impl()
+            impl_ver = get_impl_ver()
+            impl = impl_name + impl_ver
+            # We don't work on CPython 3.1, 3.0.
+            if self.py_limited_api and (impl_name + impl_ver).startswith('cp3'):
+                impl = self.py_limited_api
+                abi_tag = 'abi3'
+            else:
+                abi_tag = str(get_abi_tag()).lower()
+            tag = (impl, abi_tag, plat_name)
+            supported_tags = pep425tags.get_supported(
+                supplied_platform=plat_name if self.plat_name_supplied else None)
+            # XXX switch to this alternate implementation for non-pure:
+            if not self.py_limited_api:
+                assert tag == supported_tags[0], "%s != %s" % (tag, supported_tags[0])
+            assert tag in supported_tags, "would build wheel with unsupported tag {}".format(tag)
+        return tag
+
+    def get_archive_basename(self):
+        """Return archive name without extension"""
+
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+
+        archive_basename = "%s-%s-%s-%s" % (
+            self.wheel_dist_name,
+            impl_tag,
+            abi_tag,
+            plat_tag)
+        return archive_basename
+
+    def run(self):
+        build_scripts = self.reinitialize_command('build_scripts')
+        build_scripts.executable = 'python'
+
+        if not self.skip_build:
+            self.run_command('build')
+
+        install = self.reinitialize_command('install',
+                                            reinit_subcommands=True)
+        install.root = self.bdist_dir
+        install.compile = False
+        install.skip_build = self.skip_build
+        install.warn_dir = False
+
+        # A wheel without setuptools scripts is more cross-platform.
+        # Use the (undocumented) `no_ep` option to setuptools'
+        # install_scripts command to avoid creating entry point scripts.
+        install_scripts = self.reinitialize_command('install_scripts')
+        install_scripts.no_ep = True
+
+        # Use a custom scheme for the archive, because we have to decide
+        # at installation time which scheme to use.
+        for key in ('headers', 'scripts', 'data', 'purelib', 'platlib'):
+            setattr(install,
+                    'install_' + key,
+                    os.path.join(self.data_dir, key))
+
+        basedir_observed = ''
+
+        if os.name == 'nt':
+            # win32 barfs if any of these are ''; could be '.'?
+            # (distutils.command.install:change_roots bug)
+            basedir_observed = os.path.normpath(os.path.join(self.data_dir, '..'))
+            self.install_libbase = self.install_lib = basedir_observed
+
+        setattr(install,
+                'install_purelib' if self.root_is_pure else 'install_platlib',
+                basedir_observed)
+
+        logger.info("installing to %s", self.bdist_dir)
+
+        self.run_command('install')
+
+        archive_basename = self.get_archive_basename()
+
+        pseudoinstall_root = os.path.join(self.dist_dir, archive_basename)
+        if not self.relative:
+            archive_root = self.bdist_dir
+        else:
+            archive_root = os.path.join(
+                self.bdist_dir,
+                self._ensure_relative(install.install_base))
+
+        self.set_undefined_options(
+            'install_egg_info', ('target', 'egginfo_dir'))
+        self.distinfo_dir = os.path.join(self.bdist_dir,
+                                         '%s.dist-info' % self.wheel_dist_name)
+        self.egg2dist(self.egginfo_dir,
+                      self.distinfo_dir)
+
+        self.write_wheelfile(self.distinfo_dir)
+
+        self.write_record(self.bdist_dir, self.distinfo_dir)
+
+        # Make the archive
+        if not os.path.exists(self.dist_dir):
+            os.makedirs(self.dist_dir)
+        wheel_name = archive_wheelfile(pseudoinstall_root, archive_root)
+
+        # Sign the archive
+        if 'WHEEL_TOOL' in os.environ:
+            subprocess.call([os.environ['WHEEL_TOOL'], 'sign', wheel_name])
+
+        # Add to 'Distribution.dist_files' so that the "upload" command works
+        getattr(self.distribution, 'dist_files', []).append(
+            ('bdist_wheel', get_python_version(), wheel_name))
+
+        if not self.keep_temp:
+            if self.dry_run:
+                logger.info('removing %s', self.bdist_dir)
+            else:
+                rmtree(self.bdist_dir)
+
+    def write_wheelfile(self, wheelfile_base, generator='bdist_wheel (' + wheel_version + ')'):
+        from email.message import Message
+        msg = Message()
+        msg['Wheel-Version'] = '1.0'  # of the spec
+        msg['Generator'] = generator
+        msg['Root-Is-Purelib'] = str(self.root_is_pure).lower()
+        if self.build_number is not None:
+            msg['Build'] = self.build_number
+
+        # Doesn't work for bdist_wininst
+        impl_tag, abi_tag, plat_tag = self.get_tag()
+        for impl in impl_tag.split('.'):
+            for abi in abi_tag.split('.'):
+                for plat in plat_tag.split('.'):
+                    msg['Tag'] = '-'.join((impl, abi, plat))
+
+        wheelfile_path = os.path.join(wheelfile_base, 'WHEEL')
+        logger.info('creating %s', wheelfile_path)
+        with open(wheelfile_path, 'w') as f:
+            Generator(f, maxheaderlen=0).flatten(msg)
+
+    def _ensure_relative(self, path):
+        # copied from dir_util, deleted
+        drive, path = os.path.splitdrive(path)
+        if path[0:1] == os.sep:
+            path = drive + path[1:]
+        return path
+
+    def _pkginfo_to_metadata(self, egg_info_path, pkginfo_path):
+        return metadata.pkginfo_to_metadata(egg_info_path, pkginfo_path)
+
+    def license_file(self):
+        """Return license filename from a license-file key in setup.cfg, or None."""
+        metadata = self.distribution.get_option_dict('metadata')
+        if 'license_file' not in metadata:
+            return None
+        return metadata['license_file'][1]
+
+    def setupcfg_requirements(self):
+        """Generate requirements from setup.cfg as
+        ('Requires-Dist', 'requirement; qualifier') tuples. From a metadata
+        section in setup.cfg:
+
+        [metadata]
+        provides-extra = extra1
+            extra2
+        requires-dist = requirement; qualifier
+            another; qualifier2
+            unqualified
+
+        Yields
+
+        ('Provides-Extra', 'extra1'),
+        ('Provides-Extra', 'extra2'),
+        ('Requires-Dist', 'requirement; qualifier'),
+        ('Requires-Dist', 'another; qualifier2'),
+        ('Requires-Dist', 'unqualified')
+        """
+        metadata = self.distribution.get_option_dict('metadata')
+
+        # our .ini parser folds - to _ in key names:
+        for key, title in (('provides_extra', 'Provides-Extra'),
+                           ('requires_dist', 'Requires-Dist')):
+            if key not in metadata:
+                continue
+            field = metadata[key]
+            for line in field[1].splitlines():
+                line = line.strip()
+                if not line:
+                    continue
+                yield (title, line)
+
+    def add_requirements(self, metadata_path):
+        """Add additional requirements from setup.cfg to file metadata_path"""
+        additional = list(self.setupcfg_requirements())
+        if not additional:
+            return
+
+        pkg_info = read_pkg_info(metadata_path)
+        if 'Provides-Extra' in pkg_info or 'Requires-Dist' in pkg_info:
+            warnings.warn('setup.cfg requirements overwrite values from setup.py')
+            del pkg_info['Provides-Extra']
+            del pkg_info['Requires-Dist']
+        for k, v in additional:
+            pkg_info[k] = v
+        write_pkg_info(metadata_path, pkg_info)
+
+    def egg2dist(self, egginfo_path, distinfo_path):
+        """Convert an .egg-info directory into a .dist-info directory"""
+        def adios(p):
+            """Appropriately delete directory, file or link."""
+            if os.path.exists(p) and not os.path.islink(p) and os.path.isdir(p):
+                shutil.rmtree(p)
+            elif os.path.exists(p):
+                os.unlink(p)
+
+        adios(distinfo_path)
+
+        if not os.path.exists(egginfo_path):
+            # There is no egg-info. This is probably because the egg-info
+            # file/directory is not named matching the distribution name used
+            # to name the archive file. Check for this case and report
+            # accordingly.
+            import glob
+            pat = os.path.join(os.path.dirname(egginfo_path), '*.egg-info')
+            possible = glob.glob(pat)
+            err = "Egg metadata expected at %s but not found" % (egginfo_path,)
+            if possible:
+                alt = os.path.basename(possible[0])
+                err += " (%s found - possible misnamed archive file?)" % (alt,)
+
+            raise ValueError(err)
+
+        if os.path.isfile(egginfo_path):
+            # .egg-info is a single file
+            pkginfo_path = egginfo_path
+            pkg_info = self._pkginfo_to_metadata(egginfo_path, egginfo_path)
+            os.mkdir(distinfo_path)
+        else:
+            # .egg-info is a directory
+            pkginfo_path = os.path.join(egginfo_path, 'PKG-INFO')
+            pkg_info = self._pkginfo_to_metadata(egginfo_path, pkginfo_path)
+
+            # ignore common egg metadata that is useless to wheel
+            shutil.copytree(egginfo_path, distinfo_path,
+                            ignore=lambda x, y: {'PKG-INFO', 'requires.txt', 'SOURCES.txt',
+                                                 'not-zip-safe'}
+                            )
+
+            # delete dependency_links if it is only whitespace
+            dependency_links_path = os.path.join(distinfo_path, 'dependency_links.txt')
+            with open(dependency_links_path, 'r') as dependency_links_file:
+                dependency_links = dependency_links_file.read().strip()
+            if not dependency_links:
+                adios(dependency_links_path)
+
+        write_pkg_info(os.path.join(distinfo_path, 'METADATA'), pkg_info)
+
+        # XXX deprecated. Still useful for current distribute/setuptools.
+        metadata_path = os.path.join(distinfo_path, 'METADATA')
+        self.add_requirements(metadata_path)
+
+        # XXX intentionally a different path than the PEP.
+        metadata_json_path = os.path.join(distinfo_path, 'metadata.json')
+        pymeta = pkginfo_to_dict(metadata_path,
+                                 distribution=self.distribution)
+
+        if 'description' in pymeta:
+            description_filename = 'DESCRIPTION.rst'
+            description_text = pymeta.pop('description')
+            description_path = os.path.join(distinfo_path,
+                                            description_filename)
+            with open(description_path, "wb") as description_file:
+                description_file.write(description_text.encode('utf-8'))
+            pymeta['extensions']['python.details']['document_names']['description'] = \
+                description_filename
+
+        # XXX heuristically copy any LICENSE/LICENSE.txt?
+        license = self.license_file()
+        if license:
+            license_filename = 'LICENSE.txt'
+            shutil.copy(license, os.path.join(self.distinfo_dir, license_filename))
+            pymeta['extensions']['python.details']['document_names']['license'] = license_filename
+
+        with open(metadata_json_path, "w") as metadata_json:
+            json.dump(pymeta, metadata_json, sort_keys=True)
+
+        adios(egginfo_path)
+
+    def write_record(self, bdist_dir, distinfo_dir):
+        from .util import urlsafe_b64encode
+
+        record_path = os.path.join(distinfo_dir, 'RECORD')
+        record_relpath = os.path.relpath(record_path, bdist_dir)
+
+        def walk():
+            for dir, dirs, files in os.walk(bdist_dir):
+                dirs.sort()
+                for f in sorted(files):
+                    yield os.path.join(dir, f)
+
+        def skip(path):
+            """Wheel hashes every possible file."""
+            return (path == record_relpath)
+
+        with open_for_csv(record_path, 'w+') as record_file:
+            writer = csv.writer(record_file)
+            for path in walk():
+                relpath = os.path.relpath(path, bdist_dir)
+                if skip(relpath):
+                    hash = ''
+                    size = ''
+                else:
+                    with open(path, 'rb') as f:
+                        data = f.read()
+                    digest = hashlib.sha256(data).digest()
+                    hash = 'sha256=' + native(urlsafe_b64encode(digest))
+                    size = len(data)
+                record_path = os.path.relpath(
+                    path, bdist_dir).replace(os.path.sep, '/')
+                writer.writerow((record_path, hash, size))
diff --git a/venv1/lib/python3.5/site-packages/wheel/decorator.py b/venv1/lib/python3.5/site-packages/wheel/decorator.py
new file mode 100644
index 0000000..e4b56d1
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/decorator.py
@@ -0,0 +1,19 @@
+# from Pyramid
+
+
+class reify(object):
+    """Put the result of a method which uses this (non-data)
+    descriptor decorator in the instance dict after the first call,
+    effectively replacing the decorator with an instance variable.
+    """
+
+    def __init__(self, wrapped):
+        self.wrapped = wrapped
+        self.__doc__ = wrapped.__doc__
+
+    def __get__(self, inst, objtype=None):
+        if inst is None:
+            return self
+        val = self.wrapped(inst)
+        setattr(inst, self.wrapped.__name__, val)
+        return val
diff --git a/venv1/lib/python3.5/site-packages/wheel/egg2wheel.py b/venv1/lib/python3.5/site-packages/wheel/egg2wheel.py
new file mode 100644
index 0000000..3799909
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/egg2wheel.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python
+import distutils.dist
+import os.path
+import re
+import shutil
+import sys
+import tempfile
+import zipfile
+from argparse import ArgumentParser
+from distutils.archive_util import make_archive
+from glob import iglob
+
+import wheel.bdist_wheel
+from wheel.wininst2wheel import _bdist_wheel_tag
+
+egg_info_re = re.compile(r'''(?P<name>.+?)-(?P<ver>.+?)
+    (-(?P<pyver>.+?))?(-(?P<arch>.+?))?.egg''', re.VERBOSE)
+
+
+def egg2wheel(egg_path, dest_dir):
+    egg_info = egg_info_re.match(os.path.basename(egg_path)).groupdict()
+    dir = tempfile.mkdtemp(suffix="_e2w")
+    if os.path.isfile(egg_path):
+        # assume we have a bdist_egg otherwise
+        egg = zipfile.ZipFile(egg_path)
+        egg.extractall(dir)
+    else:
+        # support buildout-style installed eggs directories
+        for pth in os.listdir(egg_path):
+            src = os.path.join(egg_path, pth)
+            if os.path.isfile(src):
+                shutil.copy2(src, dir)
+            else:
+                shutil.copytree(src, os.path.join(dir, pth))
+
+    dist_info = "%s-%s" % (egg_info['name'], egg_info['ver'])
+    abi = 'none'
+    pyver = egg_info['pyver'].replace('.', '')
+    arch = (egg_info['arch'] or 'any').replace('.', '_').replace('-', '_')
+    if arch != 'any':
+        # assume all binary eggs are for CPython
+        pyver = 'cp' + pyver[2:]
+    wheel_name = '-'.join((
+                          dist_info,
+                          pyver,
+                          abi,
+                          arch
+                          ))
+    root_is_purelib = egg_info['arch'] is None
+    if root_is_purelib:
+        bw = wheel.bdist_wheel.bdist_wheel(distutils.dist.Distribution())
+    else:
+        bw = _bdist_wheel_tag(distutils.dist.Distribution())
+
+    bw.root_is_pure = root_is_purelib
+    bw.python_tag = pyver
+    bw.plat_name_supplied = True
+    bw.plat_name = egg_info['arch'] or 'any'
+    if not root_is_purelib:
+        bw.full_tag_supplied = True
+        bw.full_tag = (pyver, abi, arch)
+
+    dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info)
+    bw.egg2dist(os.path.join(dir, 'EGG-INFO'),
+                dist_info_dir)
+    bw.write_wheelfile(dist_info_dir, generator='egg2wheel')
+    bw.write_record(dir, dist_info_dir)
+    filename = make_archive(os.path.join(dest_dir, wheel_name), 'zip', root_dir=dir)
+    os.rename(filename, filename[:-3] + 'whl')
+    shutil.rmtree(dir)
+
+
+def main():
+    parser = ArgumentParser()
+    parser.add_argument('eggs', nargs='*', help="Eggs to convert")
+    parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                        help="Directory to store wheels (default %(default)s)")
+    parser.add_argument('--verbose', '-v', action='store_true')
+    args = parser.parse_args()
+    for pat in args.eggs:
+        for egg in iglob(pat):
+            if args.verbose:
+                sys.stdout.write("{0}... ".format(egg))
+            egg2wheel(egg, args.dest_dir)
+            if args.verbose:
+                sys.stdout.write("OK\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/venv1/lib/python3.5/site-packages/wheel/install.py b/venv1/lib/python3.5/site-packages/wheel/install.py
new file mode 100644
index 0000000..5a88a75
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/install.py
@@ -0,0 +1,494 @@
+"""
+Operations on existing wheel files, including basic installation.
+"""
+# XXX see patched pip to install
+
+import csv
+import hashlib
+import os.path
+import re
+import shutil
+import sys
+import warnings
+import zipfile
+
+from . import signatures
+from .decorator import reify
+from .paths import get_install_paths
+from .pep425tags import get_supported
+from .pkginfo import read_pkg_info_bytes
+from .util import (
+    urlsafe_b64encode, from_json, urlsafe_b64decode, native, binary, HashingFile,
+    open_for_csv)
+
+try:
+    _big_number = sys.maxsize
+except NameError:
+    _big_number = sys.maxint
+
+# The next major version after this version of the 'wheel' tool:
+VERSION_TOO_HIGH = (1, 0)
+
+# Non-greedy matching of an optional build number may be too clever (more
+# invalid wheel filenames will match). Separate regex for .dist-info?
+WHEEL_INFO_RE = re.compile(
+    r"""^(?P<namever>(?P<name>.+?)(-(?P<ver>\d.+?))?)
+    ((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
+    \.whl|\.dist-info)$""",
+    re.VERBOSE).match
+
+
+def parse_version(version):
+    """Use parse_version from pkg_resources or distutils as available."""
+    global parse_version
+    try:
+        from pkg_resources import parse_version
+    except ImportError:
+        from distutils.version import LooseVersion as parse_version
+    return parse_version(version)
+
+
+class BadWheelFile(ValueError):
+    pass
+
+
+class WheelFile(object):
+    """Parse wheel-specific attributes from a wheel (.whl) file and offer
+    basic installation and verification support.
+
+    WheelFile can be used to simply parse a wheel filename by avoiding the
+    methods that require the actual file contents."""
+
+    WHEEL_INFO = "WHEEL"
+    RECORD = "RECORD"
+
+    def __init__(self,
+                 filename,
+                 fp=None,
+                 append=False,
+                 context=get_supported):
+        """
+        :param fp: A seekable file-like object or None to open(filename).
+        :param append: Open archive in append mode.
+        :param context: Function returning list of supported tags. Wheels
+        must have the same context to be sortable.
+        """
+        self.filename = filename
+        self.fp = fp
+        self.append = append
+        self.context = context
+        basename = os.path.basename(filename)
+        self.parsed_filename = WHEEL_INFO_RE(basename)
+        if not basename.endswith('.whl') or self.parsed_filename is None:
+            raise BadWheelFile("Bad filename '%s'" % filename)
+
+    def __repr__(self):
+        return self.filename
+
+    @property
+    def distinfo_name(self):
+        return "%s.dist-info" % self.parsed_filename.group('namever')
+
+    @property
+    def datadir_name(self):
+        return "%s.data" % self.parsed_filename.group('namever')
+
+    @property
+    def record_name(self):
+        return "%s/%s" % (self.distinfo_name, self.RECORD)
+
+    @property
+    def wheelinfo_name(self):
+        return "%s/%s" % (self.distinfo_name, self.WHEEL_INFO)
+
+    @property
+    def tags(self):
+        """A wheel file is compatible with the Cartesian product of the
+        period-delimited tags in its filename.
+        To choose a wheel file among several candidates having the same
+        distribution version 'ver', an installer ranks each triple of
+        (pyver, abi, plat) that its Python installation can run, sorting
+        the wheels by the best-ranked tag it supports and then by their
+        arity which is just len(list(compatibility_tags)).
+        """
+        tags = self.parsed_filename.groupdict()
+        for pyver in tags['pyver'].split('.'):
+            for abi in tags['abi'].split('.'):
+                for plat in tags['plat'].split('.'):
+                    yield (pyver, abi, plat)
+
+    compatibility_tags = tags
+
+    @property
+    def arity(self):
+        """The number of compatibility tags the wheel declares."""
+        return len(list(self.compatibility_tags))
+
+    @property
+    def rank(self):
+        """
+        Lowest index of any of this wheel's tags in self.context(), and the
+        arity e.g. (0, 1)
+        """
+        return self.compatibility_rank(self.context())
+
+    @property
+    def compatible(self):
+        return self.rank[0] != _big_number  # bad API!
+
+    # deprecated:
+    def compatibility_rank(self, supported):
+        """Rank the wheel against the supported tags. Smaller ranks are more
+        compatible!
+
+        :param supported: A list of compatibility tags that the current
+            Python implemenation can run.
+        """
+        preferences = []
+        for tag in self.compatibility_tags:
+            try:
+                preferences.append(supported.index(tag))
+            # Tag not present
+            except ValueError:
+                pass
+        if len(preferences):
+            return (min(preferences), self.arity)
+        return (_big_number, 0)
+
+    # deprecated
+    def supports_current_python(self, x):
+        assert self.context == x, 'context mismatch'
+        return self.compatible
+
+    # Comparability.
+    # Wheels are equal if they refer to the same file.
+    # If two wheels are not equal, compare based on (in this order):
+    #   1. Name
+    #   2. Version
+    #   3. Compatibility rank
+    #   4. Filename (as a tiebreaker)
+    @property
+    def _sort_key(self):
+        return (self.parsed_filename.group('name'),
+                parse_version(self.parsed_filename.group('ver')),
+                tuple(-x for x in self.rank),
+                self.filename)
+
+    def __eq__(self, other):
+        return self.filename == other.filename
+
+    def __ne__(self, other):
+        return self.filename != other.filename
+
+    def __lt__(self, other):
+        if self.context != other.context:
+            raise TypeError("{0}.context != {1}.context".format(self, other))
+
+        return self._sort_key < other._sort_key
+
+        # XXX prune
+
+        sn = self.parsed_filename.group('name')
+        on = other.parsed_filename.group('name')
+        if sn != on:
+            return sn < on
+        sv = parse_version(self.parsed_filename.group('ver'))
+        ov = parse_version(other.parsed_filename.group('ver'))
+        if sv != ov:
+            return sv < ov
+        # Compatibility
+        if self.context != other.context:
+            raise TypeError("{0}.context != {1}.context".format(self, other))
+        sc = self.rank
+        oc = other.rank
+        if sc is not None and oc is not None and sc != oc:
+            # Smaller compatibility ranks are "better" than larger ones,
+            # so we have to reverse the sense of the comparison here!
+            return sc > oc
+        elif sc is None and oc is not None:
+            return False
+        return self.filename < other.filename
+
+    def __gt__(self, other):
+        return other < self
+
+    def __le__(self, other):
+        return self == other or self < other
+
+    def __ge__(self, other):
+        return self == other or other < self
+
+    #
+    # Methods using the file's contents:
+    #
+
+    @reify
+    def zipfile(self):
+        mode = "r"
+        if self.append:
+            mode = "a"
+        vzf = VerifyingZipFile(self.fp if self.fp else self.filename, mode)
+        if not self.append:
+            self.verify(vzf)
+        return vzf
+
+    @reify
+    def parsed_wheel_info(self):
+        """Parse wheel metadata (the .data/WHEEL file)"""
+        return read_pkg_info_bytes(self.zipfile.read(self.wheelinfo_name))
+
+    def check_version(self):
+        version = self.parsed_wheel_info['Wheel-Version']
+        if tuple(map(int, version.split('.'))) >= VERSION_TOO_HIGH:
+            raise ValueError("Wheel version is too high")
+
+    @reify
+    def install_paths(self):
+        """
+        Consult distutils to get the install paths for our dist.  A dict with
+        ('purelib', 'platlib', 'headers', 'scripts', 'data').
+
+        We use the name from our filename as the dist name, which means headers
+        could be installed in the wrong place if the filesystem-escaped name
+        is different than the Name.  Who cares?
+        """
+        name = self.parsed_filename.group('name')
+        return get_install_paths(name)
+
+    def install(self, force=False, overrides={}):
+        """
+        Install the wheel into site-packages.
+        """
+
+        # Utility to get the target directory for a particular key
+        def get_path(key):
+            return overrides.get(key) or self.install_paths[key]
+
+        # The base target location is either purelib or platlib
+        if self.parsed_wheel_info['Root-Is-Purelib'] == 'true':
+            root = get_path('purelib')
+        else:
+            root = get_path('platlib')
+
+        # Parse all the names in the archive
+        name_trans = {}
+        for info in self.zipfile.infolist():
+            name = info.filename
+            # Zip files can contain entries representing directories.
+            # These end in a '/'.
+            # We ignore these, as we create directories on demand.
+            if name.endswith('/'):
+                continue
+
+            # Pathnames in a zipfile namelist are always /-separated.
+            # In theory, paths could start with ./ or have other oddities
+            # but this won't happen in practical cases of well-formed wheels.
+            # We'll cover the simple case of an initial './' as it's both easy
+            # to do and more common than most other oddities.
+            if name.startswith('./'):
+                name = name[2:]
+
+            # Split off the base directory to identify files that are to be
+            # installed in non-root locations
+            basedir, sep, filename = name.partition('/')
+            if sep and basedir == self.datadir_name:
+                # Data file. Target destination is elsewhere
+                key, sep, filename = filename.partition('/')
+                if not sep:
+                    raise ValueError("Invalid filename in wheel: {0}".format(name))
+                target = get_path(key)
+            else:
+                # Normal file. Target destination is root
+                key = ''
+                target = root
+                filename = name
+
+            # Map the actual filename from the zipfile to its intended target
+            # directory and the pathname relative to that directory.
+            dest = os.path.normpath(os.path.join(target, filename))
+            name_trans[info] = (key, target, filename, dest)
+
+        # We're now ready to start processing the actual install. The process
+        # is as follows:
+        #   1. Prechecks - is the wheel valid, is its declared architecture
+        #      OK, etc. [[Responsibility of the caller]]
+        #   2. Overwrite check - do any of the files to be installed already
+        #      exist?
+        #   3. Actual install - put the files in their target locations.
+        #   4. Update RECORD - write a suitably modified RECORD file to
+        #      reflect the actual installed paths.
+
+        if not force:
+            for info, v in name_trans.items():
+                k = info.filename
+                key, target, filename, dest = v
+                if os.path.exists(dest):
+                    raise ValueError(
+                        "Wheel file {0} would overwrite {1}. Use force if this is intended".format(
+                            k, dest))
+
+        # Get the name of our executable, for use when replacing script
+        # wrapper hashbang lines.
+        # We encode it using getfilesystemencoding, as that is "the name of
+        # the encoding used to convert Unicode filenames into system file
+        # names".
+        exename = sys.executable.encode(sys.getfilesystemencoding())
+        record_data = []
+        record_name = self.distinfo_name + '/RECORD'
+        for info, (key, target, filename, dest) in name_trans.items():
+            name = info.filename
+            source = self.zipfile.open(info)
+            # Skip the RECORD file
+            if name == record_name:
+                continue
+            ddir = os.path.dirname(dest)
+            if not os.path.isdir(ddir):
+                os.makedirs(ddir)
+
+            temp_filename = dest + '.part'
+            try:
+                with HashingFile(temp_filename, 'wb') as destination:
+                    if key == 'scripts':
+                        hashbang = source.readline()
+                        if hashbang.startswith(b'#!python'):
+                            hashbang = b'#!' + exename + binary(os.linesep)
+                        destination.write(hashbang)
+
+                    shutil.copyfileobj(source, destination)
+            except:
+                if os.path.exists(temp_filename):
+                    os.unlink(temp_filename)
+
+                raise
+
+            os.rename(temp_filename, dest)
+            reldest = os.path.relpath(dest, root)
+            reldest.replace(os.sep, '/')
+            record_data.append((reldest, destination.digest(), destination.length))
+            destination.close()
+            source.close()
+            # preserve attributes (especially +x bit for scripts)
+            attrs = info.external_attr >> 16
+            if attrs:  # tends to be 0 if Windows.
+                os.chmod(dest, info.external_attr >> 16)
+
+        record_name = os.path.join(root, self.record_name)
+        with open_for_csv(record_name, 'w+') as record_file:
+            writer = csv.writer(record_file)
+            for reldest, digest, length in sorted(record_data):
+                writer.writerow((reldest, digest, length))
+            writer.writerow((self.record_name, '', ''))
+
+    def verify(self, zipfile=None):
+        """Configure the VerifyingZipFile `zipfile` by verifying its signature
+        and setting expected hashes for every hash in RECORD.
+        Caller must complete the verification process by completely reading
+        every file in the archive (e.g. with extractall)."""
+        sig = None
+        if zipfile is None:
+            zipfile = self.zipfile
+        zipfile.strict = True
+
+        record_name = '/'.join((self.distinfo_name, 'RECORD'))
+        sig_name = '/'.join((self.distinfo_name, 'RECORD.jws'))
+        # tolerate s/mime signatures:
+        smime_sig_name = '/'.join((self.distinfo_name, 'RECORD.p7s'))
+        zipfile.set_expected_hash(record_name, None)
+        zipfile.set_expected_hash(sig_name, None)
+        zipfile.set_expected_hash(smime_sig_name, None)
+        record = zipfile.read(record_name)
+
+        record_digest = urlsafe_b64encode(hashlib.sha256(record).digest())
+        try:
+            sig = from_json(native(zipfile.read(sig_name)))
+        except KeyError:  # no signature
+            pass
+        if sig:
+            headers, payload = signatures.verify(sig)
+            if payload['hash'] != "sha256=" + native(record_digest):
+                msg = "RECORD.sig claimed RECORD hash {0} != computed hash {1}."
+                raise BadWheelFile(msg.format(payload['hash'],
+                                              native(record_digest)))
+
+        reader = csv.reader((native(r) for r in record.splitlines()))
+
+        for row in reader:
+            filename = row[0]
+            hash = row[1]
+            if not hash:
+                if filename not in (record_name, sig_name):
+                    sys.stderr.write("%s has no hash!\n" % filename)
+                continue
+            algo, data = row[1].split('=', 1)
+            assert algo == "sha256", "Unsupported hash algorithm"
+            zipfile.set_expected_hash(filename, urlsafe_b64decode(binary(data)))
+
+
+class VerifyingZipFile(zipfile.ZipFile):
+    """ZipFile that can assert that each of its extracted contents matches
+    an expected sha256 hash. Note that each file must be completly read in
+    order for its hash to be checked."""
+
+    def __init__(self, file, mode="r",
+                 compression=zipfile.ZIP_STORED,
+                 allowZip64=False):
+        zipfile.ZipFile.__init__(self, file, mode, compression, allowZip64)
+
+        self.strict = False
+        self._expected_hashes = {}
+        self._hash_algorithm = hashlib.sha256
+
+    def set_expected_hash(self, name, hash):
+        """
+        :param name: name of zip entry
+        :param hash: bytes of hash (or None for "don't care")
+        """
+        self._expected_hashes[name] = hash
+
+    def open(self, name_or_info, mode="r", pwd=None):
+        """Return file-like object for 'name'."""
+        # A non-monkey-patched version would contain most of zipfile.py
+        ef = zipfile.ZipFile.open(self, name_or_info, mode, pwd)
+        if isinstance(name_or_info, zipfile.ZipInfo):
+            name = name_or_info.filename
+        else:
+            name = name_or_info
+
+        if name in self._expected_hashes and self._expected_hashes[name] is not None:
+            expected_hash = self._expected_hashes[name]
+            try:
+                _update_crc_orig = ef._update_crc
+            except AttributeError:
+                warnings.warn('Need ZipExtFile._update_crc to implement '
+                              'file hash verification (in Python >= 2.7)')
+                return ef
+            running_hash = self._hash_algorithm()
+            if hasattr(ef, '_eof'):  # py33
+                def _update_crc(data):
+                    _update_crc_orig(data)
+                    running_hash.update(data)
+                    if ef._eof and running_hash.digest() != expected_hash:
+                        raise BadWheelFile("Bad hash for file %r" % ef.name)
+            else:
+                def _update_crc(data, eof=None):
+                    _update_crc_orig(data, eof=eof)
+                    running_hash.update(data)
+                    if eof and running_hash.digest() != expected_hash:
+                        raise BadWheelFile("Bad hash for file %r" % ef.name)
+            ef._update_crc = _update_crc
+        elif self.strict and name not in self._expected_hashes:
+            raise BadWheelFile("No expected hash for file %r" % ef.name)
+        return ef
+
+    def pop(self):
+        """Truncate the last file off this zipfile.
+        Assumes infolist() is in the same order as the files (true for
+        ordinary zip files created by Python)"""
+        if not self.fp:
+            raise RuntimeError(
+                  "Attempt to pop from ZIP archive that was already closed")
+        last = self.infolist().pop()
+        del self.NameToInfo[last.filename]
+        self.fp.seek(last.header_offset, os.SEEK_SET)
+        self.fp.truncate()
+        self._didModify = True
diff --git a/venv1/lib/python3.5/site-packages/wheel/metadata.py b/venv1/lib/python3.5/site-packages/wheel/metadata.py
new file mode 100644
index 0000000..29638e7
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/metadata.py
@@ -0,0 +1,338 @@
+"""
+Tools for converting old- to new-style metadata.
+"""
+
+import email.parser
+import os.path
+import re
+import textwrap
+from collections import namedtuple, OrderedDict
+
+import pkg_resources
+
+from . import __version__ as wheel_version
+from .pkginfo import read_pkg_info
+from .util import OrderedDefaultDict
+
+METADATA_VERSION = "2.0"
+
+PLURAL_FIELDS = {"classifier": "classifiers",
+                 "provides_dist": "provides",
+                 "provides_extra": "extras"}
+
+SKIP_FIELDS = set()
+
+CONTACT_FIELDS = (({"email": "author_email", "name": "author"},
+                   "author"),
+                  ({"email": "maintainer_email", "name": "maintainer"},
+                   "maintainer"))
+
+# commonly filled out as "UNKNOWN" by distutils:
+UNKNOWN_FIELDS = {"author", "author_email", "platform", "home_page", "license"}
+
+# Wheel itself is probably the only program that uses non-extras markers
+# in METADATA/PKG-INFO. Support its syntax with the extra at the end only.
+EXTRA_RE = re.compile("""^(?P<package>.*?)(;\s*(?P<condition>.*?)(extra == '(?P<extra>.*?)')?)$""")
+KEYWORDS_RE = re.compile("[\0-,]+")
+
+MayRequiresKey = namedtuple('MayRequiresKey', ('condition', 'extra'))
+
+
+def unique(iterable):
+    """
+    Yield unique values in iterable, preserving order.
+    """
+    seen = set()
+    for value in iterable:
+        if value not in seen:
+            seen.add(value)
+            yield value
+
+
+def handle_requires(metadata, pkg_info, key):
+    """
+    Place the runtime requirements from pkg_info into metadata.
+    """
+    may_requires = OrderedDefaultDict(list)
+    for value in sorted(pkg_info.get_all(key)):
+        extra_match = EXTRA_RE.search(value)
+        if extra_match:
+            groupdict = extra_match.groupdict()
+            condition = groupdict['condition']
+            extra = groupdict['extra']
+            package = groupdict['package']
+            if condition.endswith(' and '):
+                condition = condition[:-5]
+        else:
+            condition, extra = None, None
+            package = value
+        key = MayRequiresKey(condition, extra)
+        may_requires[key].append(package)
+
+    if may_requires:
+        metadata['run_requires'] = []
+
+        def sort_key(item):
+            # Both condition and extra could be None, which can't be compared
+            # against strings in Python 3.
+            key, value = item
+            if key.condition is None:
+                return ''
+            return key.condition
+
+        for key, value in sorted(may_requires.items(), key=sort_key):
+            may_requirement = OrderedDict((('requires', value),))
+            if key.extra:
+                may_requirement['extra'] = key.extra
+            if key.condition:
+                may_requirement['environment'] = key.condition
+            metadata['run_requires'].append(may_requirement)
+
+        if 'extras' not in metadata:
+            metadata['extras'] = []
+        metadata['extras'].extend([key.extra for key in may_requires.keys() if key.extra])
+
+
+def pkginfo_to_dict(path, distribution=None):
+    """
+    Convert PKG-INFO to a prototype Metadata 2.0 (PEP 426) dict.
+
+    The description is included under the key ['description'] rather than
+    being written to a separate file.
+
+    path: path to PKG-INFO file
+    distribution: optional distutils Distribution()
+    """
+
+    metadata = OrderedDefaultDict(
+        lambda: OrderedDefaultDict(lambda: OrderedDefaultDict(OrderedDict)))
+    metadata["generator"] = "bdist_wheel (" + wheel_version + ")"
+    try:
+        unicode
+        pkg_info = read_pkg_info(path)
+    except NameError:
+        with open(path, 'rb') as pkg_info_file:
+            pkg_info = email.parser.Parser().parsestr(pkg_info_file.read().decode('utf-8'))
+    description = None
+
+    if pkg_info['Summary']:
+        metadata['summary'] = pkginfo_unicode(pkg_info, 'Summary')
+        del pkg_info['Summary']
+
+    if pkg_info['Description']:
+        description = dedent_description(pkg_info)
+        del pkg_info['Description']
+    else:
+        payload = pkg_info.get_payload()
+        if isinstance(payload, bytes):
+            # Avoid a Python 2 Unicode error.
+            # We still suffer ? glyphs on Python 3.
+            payload = payload.decode('utf-8')
+        if payload:
+            description = payload
+
+    if description:
+        pkg_info['description'] = description
+
+    for key in sorted(unique(k.lower() for k in pkg_info.keys())):
+        low_key = key.replace('-', '_')
+
+        if low_key in SKIP_FIELDS:
+            continue
+
+        if low_key in UNKNOWN_FIELDS and pkg_info.get(key) == 'UNKNOWN':
+            continue
+
+        if low_key in sorted(PLURAL_FIELDS):
+            metadata[PLURAL_FIELDS[low_key]] = pkg_info.get_all(key)
+
+        elif low_key == "requires_dist":
+            handle_requires(metadata, pkg_info, key)
+
+        elif low_key == 'provides_extra':
+            if 'extras' not in metadata:
+                metadata['extras'] = []
+            metadata['extras'].extend(pkg_info.get_all(key))
+
+        elif low_key == 'home_page':
+            metadata['extensions']['python.details']['project_urls'] = {'Home': pkg_info[key]}
+
+        elif low_key == 'keywords':
+            metadata['keywords'] = KEYWORDS_RE.split(pkg_info[key])
+
+        else:
+            metadata[low_key] = pkg_info[key]
+
+    metadata['metadata_version'] = METADATA_VERSION
+
+    if 'extras' in metadata:
+        metadata['extras'] = sorted(set(metadata['extras']))
+
+    # include more information if distribution is available
+    if distribution:
+        for requires, attr in (('test_requires', 'tests_require'),):
+            try:
+                requirements = getattr(distribution, attr)
+                if isinstance(requirements, list):
+                    new_requirements = sorted(convert_requirements(requirements))
+                    metadata[requires] = [{'requires': new_requirements}]
+            except AttributeError:
+                pass
+
+    # handle contacts
+    contacts = []
+    for contact_type, role in CONTACT_FIELDS:
+        contact = OrderedDict()
+        for key in sorted(contact_type):
+            if contact_type[key] in metadata:
+                contact[key] = metadata.pop(contact_type[key])
+        if contact:
+            contact['role'] = role
+            contacts.append(contact)
+    if contacts:
+        metadata['extensions']['python.details']['contacts'] = contacts
+
+    # convert entry points to exports
+    try:
+        with open(os.path.join(os.path.dirname(path), "entry_points.txt"), "r") as ep_file:
+            ep_map = pkg_resources.EntryPoint.parse_map(ep_file.read())
+        exports = OrderedDict()
+        for group, items in sorted(ep_map.items()):
+            exports[group] = OrderedDict()
+            for item in sorted(map(str, items.values())):
+                name, export = item.split(' = ', 1)
+                exports[group][name] = export
+        if exports:
+            metadata['extensions']['python.exports'] = exports
+    except IOError:
+        pass
+
+    # copy console_scripts entry points to commands
+    if 'python.exports' in metadata['extensions']:
+        for (ep_script, wrap_script) in (('console_scripts', 'wrap_console'),
+                                         ('gui_scripts', 'wrap_gui')):
+            if ep_script in metadata['extensions']['python.exports']:
+                metadata['extensions']['python.commands'][wrap_script] = \
+                    metadata['extensions']['python.exports'][ep_script]
+
+    return metadata
+
+
+def requires_to_requires_dist(requirement):
+    """Compose the version predicates for requirement in PEP 345 fashion."""
+    requires_dist = []
+    for op, ver in requirement.specs:
+        requires_dist.append(op + ver)
+    if not requires_dist:
+        return ''
+    return " (%s)" % ','.join(sorted(requires_dist))
+
+
+def convert_requirements(requirements):
+    """Yield Requires-Dist: strings for parsed requirements strings."""
+    for req in requirements:
+        parsed_requirement = pkg_resources.Requirement.parse(req)
+        spec = requires_to_requires_dist(parsed_requirement)
+        extras = ",".join(parsed_requirement.extras)
+        if extras:
+            extras = "[%s]" % extras
+        yield (parsed_requirement.project_name + extras + spec)
+
+
+def generate_requirements(extras_require):
+    """
+    Convert requirements from a setup()-style dictionary to ('Requires-Dist', 'requirement')
+    and ('Provides-Extra', 'extra') tuples.
+
+    extras_require is a dictionary of {extra: [requirements]} as passed to setup(),
+    using the empty extra {'': [requirements]} to hold install_requires.
+    """
+    for extra, depends in extras_require.items():
+        condition = ''
+        if extra and ':' in extra:  # setuptools extra:condition syntax
+            extra, condition = extra.split(':', 1)
+            extra = pkg_resources.safe_extra(extra)
+        if extra:
+            yield ('Provides-Extra', extra)
+            if condition:
+                condition += " and "
+            condition += "extra == '%s'" % extra
+        if condition:
+            condition = '; ' + condition
+        for new_req in convert_requirements(depends):
+            yield ('Requires-Dist', new_req + condition)
+
+
+def pkginfo_to_metadata(egg_info_path, pkginfo_path):
+    """
+    Convert .egg-info directory with PKG-INFO to the Metadata 1.3 aka
+    old-draft Metadata 2.0 format.
+    """
+    pkg_info = read_pkg_info(pkginfo_path)
+    pkg_info.replace_header('Metadata-Version', '2.0')
+    requires_path = os.path.join(egg_info_path, 'requires.txt')
+    if os.path.exists(requires_path):
+        with open(requires_path) as requires_file:
+            requires = requires_file.read()
+        for extra, reqs in sorted(pkg_resources.split_sections(requires),
+                                  key=lambda x: x[0] or ''):
+            for item in generate_requirements({extra: reqs}):
+                pkg_info[item[0]] = item[1]
+
+    description = pkg_info['Description']
+    if description:
+        pkg_info.set_payload(dedent_description(pkg_info))
+        del pkg_info['Description']
+
+    return pkg_info
+
+
+def pkginfo_unicode(pkg_info, field):
+    """Hack to coax Unicode out of an email Message() - Python 3.3+"""
+    text = pkg_info[field]
+    field = field.lower()
+    if not isinstance(text, str):
+        if not hasattr(pkg_info, 'raw_items'):  # Python 3.2
+            return str(text)
+        for item in pkg_info.raw_items():
+            if item[0].lower() == field:
+                text = item[1].encode('ascii', 'surrogateescape') \
+                    .decode('utf-8')
+                break
+
+    return text
+
+
+def dedent_description(pkg_info):
+    """
+    Dedent and convert pkg_info['Description'] to Unicode.
+    """
+    description = pkg_info['Description']
+
+    # Python 3 Unicode handling, sorta.
+    surrogates = False
+    if not isinstance(description, str):
+        surrogates = True
+        description = pkginfo_unicode(pkg_info, 'Description')
+
+    description_lines = description.splitlines()
+    description_dedent = '\n'.join(
+        # if the first line of long_description is blank,
+        # the first line here will be indented.
+        (description_lines[0].lstrip(),
+         textwrap.dedent('\n'.join(description_lines[1:])),
+         '\n'))
+
+    if surrogates:
+        description_dedent = description_dedent \
+            .encode("utf8") \
+            .decode("ascii", "surrogateescape")
+
+    return description_dedent
+
+
+if __name__ == "__main__":
+    import sys
+    import pprint
+
+    pprint.pprint(pkginfo_to_dict(sys.argv[1]))
diff --git a/venv1/lib/python3.5/site-packages/wheel/paths.py b/venv1/lib/python3.5/site-packages/wheel/paths.py
new file mode 100644
index 0000000..afb3cae
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/paths.py
@@ -0,0 +1,43 @@
+"""
+Installation paths.
+
+Map the .data/ subdirectory names to install paths.
+"""
+
+import distutils.command.install as install
+import distutils.dist as dist
+import os.path
+import sys
+
+
+def get_install_command(name):
+    # late binding due to potential monkeypatching
+    d = dist.Distribution({'name': name})
+    i = install.install(d)
+    i.finalize_options()
+    return i
+
+
+def get_install_paths(name):
+    """
+    Return the (distutils) install paths for the named dist.
+
+    A dict with ('purelib', 'platlib', 'headers', 'scripts', 'data') keys.
+    """
+    paths = {}
+
+    i = get_install_command(name)
+
+    for key in install.SCHEME_KEYS:
+        paths[key] = getattr(i, 'install_' + key)
+
+    # pip uses a similar path as an alternative to the system's (read-only)
+    # include directory:
+    if hasattr(sys, 'real_prefix'):  # virtualenv
+        paths['headers'] = os.path.join(sys.prefix,
+                                        'include',
+                                        'site',
+                                        'python' + sys.version[:3],
+                                        name)
+
+    return paths
diff --git a/venv1/lib/python3.5/site-packages/wheel/pep425tags.py b/venv1/lib/python3.5/site-packages/wheel/pep425tags.py
new file mode 100644
index 0000000..29afdc3
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/pep425tags.py
@@ -0,0 +1,180 @@
+"""Generate and work with PEP 425 Compatibility Tags."""
+
+import distutils.util
+import platform
+import sys
+import sysconfig
+import warnings
+
+
+def get_config_var(var):
+    try:
+        return sysconfig.get_config_var(var)
+    except IOError as e:  # pip Issue #1074
+        warnings.warn("{0}".format(e), RuntimeWarning)
+        return None
+
+
+def get_abbr_impl():
+    """Return abbreviated implementation name."""
+    impl = platform.python_implementation()
+    if impl == 'PyPy':
+        return 'pp'
+    elif impl == 'Jython':
+        return 'jy'
+    elif impl == 'IronPython':
+        return 'ip'
+    elif impl == 'CPython':
+        return 'cp'
+
+    raise LookupError('Unknown Python implementation: ' + impl)
+
+
+def get_impl_ver():
+    """Return implementation version."""
+    impl_ver = get_config_var("py_version_nodot")
+    if not impl_ver or get_abbr_impl() == 'pp':
+        impl_ver = ''.join(map(str, get_impl_version_info()))
+    return impl_ver
+
+
+def get_impl_version_info():
+    """Return sys.version_info-like tuple for use in decrementing the minor
+    version."""
+    if get_abbr_impl() == 'pp':
+        # as per https://github.com/pypa/pip/issues/2882
+        return (sys.version_info[0], sys.pypy_version_info.major,
+                sys.pypy_version_info.minor)
+    else:
+        return sys.version_info[0], sys.version_info[1]
+
+
+def get_flag(var, fallback, expected=True, warn=True):
+    """Use a fallback method for determining SOABI flags if the needed config
+    var is unset or unavailable."""
+    val = get_config_var(var)
+    if val is None:
+        if warn:
+            warnings.warn("Config variable '{0}' is unset, Python ABI tag may "
+                          "be incorrect".format(var), RuntimeWarning, 2)
+        return fallback()
+    return val == expected
+
+
+def get_abi_tag():
+    """Return the ABI tag based on SOABI (if available) or emulate SOABI
+    (CPython 2, PyPy)."""
+    soabi = get_config_var('SOABI')
+    impl = get_abbr_impl()
+    if not soabi and impl in ('cp', 'pp') and hasattr(sys, 'maxunicode'):
+        d = ''
+        m = ''
+        u = ''
+        if get_flag('Py_DEBUG',
+                    lambda: hasattr(sys, 'gettotalrefcount'),
+                    warn=(impl == 'cp')):
+            d = 'd'
+        if get_flag('WITH_PYMALLOC',
+                    lambda: impl == 'cp',
+                    warn=(impl == 'cp')):
+            m = 'm'
+        if get_flag('Py_UNICODE_SIZE',
+                    lambda: sys.maxunicode == 0x10ffff,
+                    expected=4,
+                    warn=(impl == 'cp' and
+                          sys.version_info < (3, 3))) \
+                and sys.version_info < (3, 3):
+            u = 'u'
+        abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u)
+    elif soabi and soabi.startswith('cpython-'):
+        abi = 'cp' + soabi.split('-')[1]
+    elif soabi:
+        abi = soabi.replace('.', '_').replace('-', '_')
+    else:
+        abi = None
+    return abi
+
+
+def get_platform():
+    """Return our platform name 'win32', 'linux_x86_64'"""
+    # XXX remove distutils dependency
+    result = distutils.util.get_platform().replace('.', '_').replace('-', '_')
+    if result == "linux_x86_64" and sys.maxsize == 2147483647:
+        # pip pull request #3497
+        result = "linux_i686"
+    return result
+
+
+def get_supported(versions=None, supplied_platform=None):
+    """Return a list of supported tags for each version specified in
+    `versions`.
+
+    :param versions: a list of string versions, of the form ["33", "32"],
+        or None. The first version will be assumed to support our ABI.
+    """
+    supported = []
+
+    # Versions must be given with respect to the preference
+    if versions is None:
+        versions = []
+        version_info = get_impl_version_info()
+        major = version_info[:-1]
+        # Support all previous minor Python versions.
+        for minor in range(version_info[-1], -1, -1):
+            versions.append(''.join(map(str, major + (minor,))))
+
+    impl = get_abbr_impl()
+
+    abis = []
+
+    abi = get_abi_tag()
+    if abi:
+        abis[0:0] = [abi]
+
+    abi3s = set()
+    import imp
+    for suffix in imp.get_suffixes():
+        if suffix[0].startswith('.abi'):
+            abi3s.add(suffix[0].split('.', 2)[1])
+
+    abis.extend(sorted(list(abi3s)))
+
+    abis.append('none')
+
+    platforms = []
+    if supplied_platform:
+        platforms.append(supplied_platform)
+    platforms.append(get_platform())
+
+    # Current version, current API (built specifically for our Python):
+    for abi in abis:
+        for arch in platforms:
+            supported.append(('%s%s' % (impl, versions[0]), abi, arch))
+
+    # abi3 modules compatible with older version of Python
+    for version in versions[1:]:
+        # abi3 was introduced in Python 3.2
+        if version in ('31', '30'):
+            break
+        for abi in abi3s:   # empty set if not Python 3
+            for arch in platforms:
+                supported.append(("%s%s" % (impl, version), abi, arch))
+
+    # No abi / arch, but requires our implementation:
+    for i, version in enumerate(versions):
+        supported.append(('%s%s' % (impl, version), 'none', 'any'))
+        if i == 0:
+            # Tagged specifically as being cross-version compatible
+            # (with just the major version specified)
+            supported.append(('%s%s' % (impl, versions[0][0]), 'none', 'any'))
+
+    # Major Python version + platform; e.g. binaries not using the Python API
+    supported.append(('py%s' % (versions[0][0]), 'none', arch))
+
+    # No abi / arch, generic Python
+    for i, version in enumerate(versions):
+        supported.append(('py%s' % (version,), 'none', 'any'))
+        if i == 0:
+            supported.append(('py%s' % (version[0]), 'none', 'any'))
+
+    return supported
diff --git a/venv1/lib/python3.5/site-packages/wheel/pkginfo.py b/venv1/lib/python3.5/site-packages/wheel/pkginfo.py
new file mode 100644
index 0000000..115be45
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/pkginfo.py
@@ -0,0 +1,43 @@
+"""Tools for reading and writing PKG-INFO / METADATA without caring
+about the encoding."""
+
+from email.parser import Parser
+
+try:
+    unicode
+    _PY3 = False
+except NameError:
+    _PY3 = True
+
+if not _PY3:
+    from email.generator import Generator
+
+    def read_pkg_info_bytes(bytestr):
+        return Parser().parsestr(bytestr)
+
+    def read_pkg_info(path):
+        with open(path, "r") as headers:
+            message = Parser().parse(headers)
+        return message
+
+    def write_pkg_info(path, message):
+        with open(path, 'w') as metadata:
+            Generator(metadata, mangle_from_=False, maxheaderlen=0).flatten(message)
+else:
+    from email.generator import BytesGenerator
+
+    def read_pkg_info_bytes(bytestr):
+        headers = bytestr.decode(encoding="ascii", errors="surrogateescape")
+        message = Parser().parsestr(headers)
+        return message
+
+    def read_pkg_info(path):
+        with open(path, "r",
+                  encoding="ascii",
+                  errors="surrogateescape") as headers:
+            message = Parser().parse(headers)
+        return message
+
+    def write_pkg_info(path, message):
+        with open(path, "wb") as out:
+            BytesGenerator(out, mangle_from_=False, maxheaderlen=0).flatten(message)
diff --git a/venv1/lib/python3.5/site-packages/wheel/signatures/__init__.py b/venv1/lib/python3.5/site-packages/wheel/signatures/__init__.py
new file mode 100644
index 0000000..e7a5331
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/signatures/__init__.py
@@ -0,0 +1,110 @@
+"""
+Create and verify jws-js format Ed25519 signatures.
+"""
+
+import json
+from ..util import urlsafe_b64decode, urlsafe_b64encode, native, binary
+
+__all__ = ['sign', 'verify']
+
+ed25519ll = None
+
+ALG = "Ed25519"
+
+
+def get_ed25519ll():
+    """Lazy import-and-test of ed25519 module"""
+    global ed25519ll
+
+    if not ed25519ll:
+        try:
+            import ed25519ll  # fast (thousands / s)
+        except (ImportError, OSError):  # pragma nocover
+            from . import ed25519py as ed25519ll  # pure Python (hundreds / s)
+        test()
+
+    return ed25519ll
+
+
+def sign(payload, keypair):
+    """Return a JWS-JS format signature given a JSON-serializable payload and
+    an Ed25519 keypair."""
+    get_ed25519ll()
+    #
+    header = {
+                "alg": ALG,
+                "jwk": {
+                    "kty": ALG,  # alg -> kty in jwk-08.
+                    "vk": native(urlsafe_b64encode(keypair.vk))
+                }
+             }
+
+    encoded_header = urlsafe_b64encode(binary(json.dumps(header, sort_keys=True)))
+    encoded_payload = urlsafe_b64encode(binary(json.dumps(payload, sort_keys=True)))
+    secured_input = b".".join((encoded_header, encoded_payload))
+    sig_msg = ed25519ll.crypto_sign(secured_input, keypair.sk)
+    signature = sig_msg[:ed25519ll.SIGNATUREBYTES]
+    encoded_signature = urlsafe_b64encode(signature)
+
+    return {"recipients":
+            [{"header": native(encoded_header),
+              "signature": native(encoded_signature)}],
+            "payload": native(encoded_payload)}
+
+
+def assertTrue(condition, message=""):
+    if not condition:
+        raise ValueError(message)
+
+
+def verify(jwsjs):
+    """Return (decoded headers, payload) if all signatures in jwsjs are
+    consistent, else raise ValueError.
+
+    Caller must decide whether the keys are actually trusted."""
+    get_ed25519ll()
+    # XXX forbid duplicate keys in JSON input using object_pairs_hook (2.7+)
+    recipients = jwsjs["recipients"]
+    encoded_payload = binary(jwsjs["payload"])
+    headers = []
+    for recipient in recipients:
+        assertTrue(len(recipient) == 2, "Unknown recipient key {0}".format(recipient))
+        h = binary(recipient["header"])
+        s = binary(recipient["signature"])
+        header = json.loads(native(urlsafe_b64decode(h)))
+        assertTrue(header["alg"] == ALG,
+                   "Unexpected algorithm {0}".format(header["alg"]))
+        if "alg" in header["jwk"] and "kty" not in header["jwk"]:
+            header["jwk"]["kty"] = header["jwk"]["alg"]  # b/w for JWK < -08
+        assertTrue(header["jwk"]["kty"] == ALG,  # true for Ed25519
+                   "Unexpected key type {0}".format(header["jwk"]["kty"]))
+        vk = urlsafe_b64decode(binary(header["jwk"]["vk"]))
+        secured_input = b".".join((h, encoded_payload))
+        sig = urlsafe_b64decode(s)
+        sig_msg = sig+secured_input
+        verified_input = native(ed25519ll.crypto_sign_open(sig_msg, vk))
+        verified_header, verified_payload = verified_input.split('.')
+        verified_header = binary(verified_header)
+        decoded_header = native(urlsafe_b64decode(verified_header))
+        headers.append(json.loads(decoded_header))
+
+    verified_payload = binary(verified_payload)
+
+    # only return header, payload that have passed through the crypto library.
+    payload = json.loads(native(urlsafe_b64decode(verified_payload)))
+
+    return headers, payload
+
+
+def test():
+    kp = ed25519ll.crypto_sign_keypair()
+    payload = {'test': 'onstartup'}
+    jwsjs = json.loads(json.dumps(sign(payload, kp)))
+    verify(jwsjs)
+    jwsjs['payload'] += 'x'
+    try:
+        verify(jwsjs)
+    except ValueError:
+        pass
+    else:  # pragma no cover
+        raise RuntimeError("No error from bad wheel.signatures payload.")
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diff --git a/venv1/lib/python3.5/site-packages/wheel/signatures/djbec.py b/venv1/lib/python3.5/site-packages/wheel/signatures/djbec.py
new file mode 100644
index 0000000..87f72d4
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/signatures/djbec.py
@@ -0,0 +1,323 @@
+# Ed25519 digital signatures
+# Based on http://ed25519.cr.yp.to/python/ed25519.py
+# See also http://ed25519.cr.yp.to/software.html
+# Adapted by Ron Garret
+# Sped up considerably using coordinate transforms found on:
+# http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+# Specifically add-2008-hwcd-4 and dbl-2008-hwcd
+
+import hashlib
+import random
+
+try:  # pragma nocover
+    unicode
+    PY3 = False
+
+    def asbytes(b):
+        """Convert array of integers to byte string"""
+        return ''.join(chr(x) for x in b)
+
+    def joinbytes(b):
+        """Convert array of bytes to byte string"""
+        return ''.join(b)
+
+    def bit(h, i):
+        """Return i'th bit of bytestring h"""
+        return (ord(h[i // 8]) >> (i % 8)) & 1
+except NameError:  # pragma nocover
+    PY3 = True
+    asbytes = bytes
+    joinbytes = bytes
+
+    def bit(h, i):
+        return (h[i // 8] >> (i % 8)) & 1
+
+b = 256
+q = 2 ** 255 - 19
+l = 2 ** 252 + 27742317777372353535851937790883648493
+
+
+def H(m):
+    return hashlib.sha512(m).digest()
+
+
+def expmod(b, e, m):
+    if e == 0:
+        return 1
+
+    t = expmod(b, e // 2, m) ** 2 % m
+    if e & 1:
+        t = (t * b) % m
+
+    return t
+
+
+# Can probably get some extra speedup here by replacing this with
+# an extended-euclidean, but performance seems OK without that
+def inv(x):
+    return expmod(x, q - 2, q)
+
+
+d = -121665 * inv(121666)
+I = expmod(2, (q - 1) // 4, q)
+
+
+def xrecover(y):
+    xx = (y * y - 1) * inv(d * y * y + 1)
+    x = expmod(xx, (q + 3) // 8, q)
+    if (x * x - xx) % q != 0:
+        x = (x * I) % q
+
+    if x % 2 != 0:
+        x = q - x
+
+    return x
+
+
+By = 4 * inv(5)
+Bx = xrecover(By)
+B = [Bx % q, By % q]
+
+
+# def edwards(P,Q):
+#    x1 = P[0]
+#    y1 = P[1]
+#    x2 = Q[0]
+#    y2 = Q[1]
+#    x3 = (x1*y2+x2*y1) * inv(1+d*x1*x2*y1*y2)
+#    y3 = (y1*y2+x1*x2) * inv(1-d*x1*x2*y1*y2)
+#    return (x3 % q,y3 % q)
+
+# def scalarmult(P,e):
+#    if e == 0: return [0,1]
+#    Q = scalarmult(P,e/2)
+#    Q = edwards(Q,Q)
+#    if e & 1: Q = edwards(Q,P)
+#    return Q
+
+# Faster (!) version based on:
+# http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html
+
+def xpt_add(pt1, pt2):
+    (X1, Y1, Z1, T1) = pt1
+    (X2, Y2, Z2, T2) = pt2
+    A = ((Y1 - X1) * (Y2 + X2)) % q
+    B = ((Y1 + X1) * (Y2 - X2)) % q
+    C = (Z1 * 2 * T2) % q
+    D = (T1 * 2 * Z2) % q
+    E = (D + C) % q
+    F = (B - A) % q
+    G = (B + A) % q
+    H = (D - C) % q
+    X3 = (E * F) % q
+    Y3 = (G * H) % q
+    Z3 = (F * G) % q
+    T3 = (E * H) % q
+    return (X3, Y3, Z3, T3)
+
+
+def xpt_double(pt):
+    (X1, Y1, Z1, _) = pt
+    A = (X1 * X1)
+    B = (Y1 * Y1)
+    C = (2 * Z1 * Z1)
+    D = (-A) % q
+    J = (X1 + Y1) % q
+    E = (J * J - A - B) % q
+    G = (D + B) % q
+    F = (G - C) % q
+    H = (D - B) % q
+    X3 = (E * F) % q
+    Y3 = (G * H) % q
+    Z3 = (F * G) % q
+    T3 = (E * H) % q
+    return X3, Y3, Z3, T3
+
+
+def pt_xform(pt):
+    (x, y) = pt
+    return x, y, 1, (x * y) % q
+
+
+def pt_unxform(pt):
+    (x, y, z, _) = pt
+    return (x * inv(z)) % q, (y * inv(z)) % q
+
+
+def xpt_mult(pt, n):
+    if n == 0:
+        return pt_xform((0, 1))
+
+    _ = xpt_double(xpt_mult(pt, n >> 1))
+    return xpt_add(_, pt) if n & 1 else _
+
+
+def scalarmult(pt, e):
+    return pt_unxform(xpt_mult(pt_xform(pt), e))
+
+
+def encodeint(y):
+    bits = [(y >> i) & 1 for i in range(b)]
+    e = [(sum([bits[i * 8 + j] << j for j in range(8)]))
+         for i in range(b // 8)]
+    return asbytes(e)
+
+
+def encodepoint(P):
+    x = P[0]
+    y = P[1]
+    bits = [(y >> i) & 1 for i in range(b - 1)] + [x & 1]
+    e = [(sum([bits[i * 8 + j] << j for j in range(8)]))
+         for i in range(b // 8)]
+    return asbytes(e)
+
+
+def publickey(sk):
+    h = H(sk)
+    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
+    A = scalarmult(B, a)
+    return encodepoint(A)
+
+
+def Hint(m):
+    h = H(m)
+    return sum(2 ** i * bit(h, i) for i in range(2 * b))
+
+
+def signature(m, sk, pk):
+    h = H(sk)
+    a = 2 ** (b - 2) + sum(2 ** i * bit(h, i) for i in range(3, b - 2))
+    inter = joinbytes([h[i] for i in range(b // 8, b // 4)])
+    r = Hint(inter + m)
+    R = scalarmult(B, r)
+    S = (r + Hint(encodepoint(R) + pk + m) * a) % l
+    return encodepoint(R) + encodeint(S)
+
+
+def isoncurve(P):
+    x = P[0]
+    y = P[1]
+    return (-x * x + y * y - 1 - d * x * x * y * y) % q == 0
+
+
+def decodeint(s):
+    return sum(2 ** i * bit(s, i) for i in range(0, b))
+
+
+def decodepoint(s):
+    y = sum(2 ** i * bit(s, i) for i in range(0, b - 1))
+    x = xrecover(y)
+    if x & 1 != bit(s, b - 1):
+        x = q - x
+
+    P = [x, y]
+    if not isoncurve(P):
+        raise Exception("decoding point that is not on curve")
+
+    return P
+
+
+def checkvalid(s, m, pk):
+    if len(s) != b // 4:
+        raise Exception("signature length is wrong")
+    if len(pk) != b // 8:
+        raise Exception("public-key length is wrong")
+
+    R = decodepoint(s[0:b // 8])
+    A = decodepoint(pk)
+    S = decodeint(s[b // 8:b // 4])
+    h = Hint(encodepoint(R) + pk + m)
+    v1 = scalarmult(B, S)
+    #  v2 = edwards(R,scalarmult(A,h))
+    v2 = pt_unxform(xpt_add(pt_xform(R), pt_xform(scalarmult(A, h))))
+    return v1 == v2
+
+
+##########################################################
+#
+# Curve25519 reference implementation by Matthew Dempsky, from:
+# http://cr.yp.to/highspeed/naclcrypto-20090310.pdf
+
+# P = 2 ** 255 - 19
+P = q
+A = 486662
+
+
+# def expmod(b, e, m):
+#    if e == 0: return 1
+#    t = expmod(b, e / 2, m) ** 2 % m
+#    if e & 1: t = (t * b) % m
+#    return t
+
+# def inv(x): return expmod(x, P - 2, P)
+
+
+def add(n, m, d):
+    (xn, zn) = n
+    (xm, zm) = m
+    (xd, zd) = d
+    x = 4 * (xm * xn - zm * zn) ** 2 * zd
+    z = 4 * (xm * zn - zm * xn) ** 2 * xd
+    return (x % P, z % P)
+
+
+def double(n):
+    (xn, zn) = n
+    x = (xn ** 2 - zn ** 2) ** 2
+    z = 4 * xn * zn * (xn ** 2 + A * xn * zn + zn ** 2)
+    return (x % P, z % P)
+
+
+def curve25519(n, base=9):
+    one = (base, 1)
+    two = double(one)
+
+    # f(m) evaluates to a tuple
+    # containing the mth multiple and the
+    # (m+1)th multiple of base.
+    def f(m):
+        if m == 1:
+            return (one, two)
+
+        (pm, pm1) = f(m // 2)
+        if m & 1:
+            return (add(pm, pm1, one), double(pm1))
+
+        return (double(pm), add(pm, pm1, one))
+
+    ((x, z), _) = f(n)
+    return (x * inv(z)) % P
+
+
+def genkey(n=0):
+    n = n or random.randint(0, P)
+    n &= ~7
+    n &= ~(128 << 8 * 31)
+    n |= 64 << 8 * 31
+    return n
+
+
+# def str2int(s):
+#    return int(hexlify(s), 16)
+#    # return sum(ord(s[i]) << (8 * i) for i in range(32))
+#
+# def int2str(n):
+#    return unhexlify("%x" % n)
+#    # return ''.join([chr((n >> (8 * i)) & 255) for i in range(32)])
+
+#################################################
+
+
+def dsa_test():
+    import os
+    msg = str(random.randint(q, q + q)).encode('utf-8')
+    sk = os.urandom(32)
+    pk = publickey(sk)
+    sig = signature(msg, sk, pk)
+    return checkvalid(sig, msg, pk)
+
+
+def dh_test():
+    sk1 = genkey()
+    sk2 = genkey()
+    return curve25519(sk1, curve25519(sk2)) == curve25519(sk2, curve25519(sk1))
diff --git a/venv1/lib/python3.5/site-packages/wheel/signatures/ed25519py.py b/venv1/lib/python3.5/site-packages/wheel/signatures/ed25519py.py
new file mode 100644
index 0000000..0c4ab8f
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/signatures/ed25519py.py
@@ -0,0 +1,50 @@
+import os
+import warnings
+from collections import namedtuple
+
+from . import djbec
+
+__all__ = ['crypto_sign', 'crypto_sign_open', 'crypto_sign_keypair', 'Keypair',
+           'PUBLICKEYBYTES', 'SECRETKEYBYTES', 'SIGNATUREBYTES']
+
+PUBLICKEYBYTES = 32
+SECRETKEYBYTES = 64
+SIGNATUREBYTES = 64
+
+Keypair = namedtuple('Keypair', ('vk', 'sk'))  # verifying key, secret key
+
+
+def crypto_sign_keypair(seed=None):
+    """Return (verifying, secret) key from a given seed, or os.urandom(32)"""
+    if seed is None:
+        seed = os.urandom(PUBLICKEYBYTES)
+    else:
+        warnings.warn("ed25519ll should choose random seed.",
+                      RuntimeWarning)
+    if len(seed) != 32:
+        raise ValueError("seed must be 32 random bytes or None.")
+    skbytes = seed
+    vkbytes = djbec.publickey(skbytes)
+    return Keypair(vkbytes, skbytes+vkbytes)
+
+
+def crypto_sign(msg, sk):
+    """Return signature+message given message and secret key.
+    The signature is the first SIGNATUREBYTES bytes of the return value.
+    A copy of msg is in the remainder."""
+    if len(sk) != SECRETKEYBYTES:
+        raise ValueError("Bad signing key length %d" % len(sk))
+    vkbytes = sk[PUBLICKEYBYTES:]
+    skbytes = sk[:PUBLICKEYBYTES]
+    sig = djbec.signature(msg, skbytes, vkbytes)
+    return sig + msg
+
+
+def crypto_sign_open(signed, vk):
+    """Return message given signature+message and the verifying key."""
+    if len(vk) != PUBLICKEYBYTES:
+        raise ValueError("Bad verifying key length %d" % len(vk))
+    rc = djbec.checkvalid(signed[:SIGNATUREBYTES], signed[SIGNATUREBYTES:], vk)
+    if not rc:
+        raise ValueError("rc != True", rc)
+    return signed[SIGNATUREBYTES:]
diff --git a/venv1/lib/python3.5/site-packages/wheel/signatures/keys.py b/venv1/lib/python3.5/site-packages/wheel/signatures/keys.py
new file mode 100644
index 0000000..eb5d4ac
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/signatures/keys.py
@@ -0,0 +1,101 @@
+"""Store and retrieve wheel signing / verifying keys.
+
+Given a scope (a package name, + meaning "all packages", or - meaning
+"no packages"), return a list of verifying keys that are trusted for that
+scope.
+
+Given a package name, return a list of (scope, key) suggested keys to sign
+that package (only the verifying keys; the private signing key is stored
+elsewhere).
+
+Keys here are represented as urlsafe_b64encoded strings with no padding.
+
+Tentative command line interface:
+
+# list trusts
+wheel trust
+# trust a particular key for all
+wheel trust + key
+# trust key for beaglevote
+wheel trust beaglevote key
+# stop trusting a key for all
+wheel untrust + key
+
+# generate a key pair
+wheel keygen
+
+# import a signing key from a file
+wheel import keyfile
+
+# export a signing key
+wheel export key
+"""
+
+import json
+import os.path
+
+from ..util import native, load_config_paths, save_config_path
+
+
+class WheelKeys(object):
+    SCHEMA = 1
+    CONFIG_NAME = 'wheel.json'
+
+    def __init__(self):
+        self.data = {'signers': [], 'verifiers': []}
+
+    def load(self):
+        # XXX JSON is not a great database
+        for path in load_config_paths('wheel'):
+            conf = os.path.join(native(path), self.CONFIG_NAME)
+            if os.path.exists(conf):
+                with open(conf, 'r') as infile:
+                    self.data = json.load(infile)
+                    for x in ('signers', 'verifiers'):
+                        if x not in self.data:
+                            self.data[x] = []
+                    if 'schema' not in self.data:
+                        self.data['schema'] = self.SCHEMA
+                    elif self.data['schema'] != self.SCHEMA:
+                        raise ValueError(
+                            "Bad wheel.json version {0}, expected {1}".format(
+                                self.data['schema'], self.SCHEMA))
+                break
+        return self
+
+    def save(self):
+        # Try not to call this a very long time after load()
+        path = save_config_path('wheel')
+        conf = os.path.join(native(path), self.CONFIG_NAME)
+        with open(conf, 'w+') as out:
+            json.dump(self.data, out, indent=2)
+        return self
+
+    def trust(self, scope, vk):
+        """Start trusting a particular key for given scope."""
+        self.data['verifiers'].append({'scope': scope, 'vk': vk})
+        return self
+
+    def untrust(self, scope, vk):
+        """Stop trusting a particular key for given scope."""
+        self.data['verifiers'].remove({'scope': scope, 'vk': vk})
+        return self
+
+    def trusted(self, scope=None):
+        """Return list of [(scope, trusted key), ...] for given scope."""
+        trust = [(x['scope'], x['vk']) for x in self.data['verifiers']
+                 if x['scope'] in (scope, '+')]
+        trust.sort(key=lambda x: x[0])
+        trust.reverse()
+        return trust
+
+    def signers(self, scope):
+        """Return list of signing key(s)."""
+        sign = [(x['scope'], x['vk']) for x in self.data['signers'] if x['scope'] in (scope, '+')]
+        sign.sort(key=lambda x: x[0])
+        sign.reverse()
+        return sign
+
+    def add_signer(self, scope, vk):
+        """Remember verifying key vk as being valid for signing in scope."""
+        self.data['signers'].append({'scope': scope, 'vk': vk})
diff --git a/venv1/lib/python3.5/site-packages/wheel/tool/__init__.py b/venv1/lib/python3.5/site-packages/wheel/tool/__init__.py
new file mode 100644
index 0000000..d6b9893
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/tool/__init__.py
@@ -0,0 +1,376 @@
+"""
+Wheel command-line utility.
+"""
+
+import argparse
+import hashlib
+import json
+import os
+import sys
+from glob import iglob
+
+from .. import signatures
+from ..install import WheelFile, VerifyingZipFile
+from ..paths import get_install_command
+from ..util import urlsafe_b64decode, urlsafe_b64encode, native, binary, matches_requirement
+
+
+def require_pkgresources(name):
+    try:
+        import pkg_resources  # noqa: F401
+    except ImportError:
+        raise RuntimeError("'{0}' needs pkg_resources (part of setuptools).".format(name))
+
+
+class WheelError(Exception):
+    pass
+
+
+# For testability
+def get_keyring():
+    try:
+        from ..signatures import keys
+        import keyring
+        assert keyring.get_keyring().priority
+    except (ImportError, AssertionError):
+        raise WheelError(
+            "Install wheel[signatures] (requires keyring, keyrings.alt, pyxdg) for signatures.")
+
+    return keys.WheelKeys, keyring
+
+
+def keygen(get_keyring=get_keyring):
+    """Generate a public/private key pair."""
+    WheelKeys, keyring = get_keyring()
+
+    ed25519ll = signatures.get_ed25519ll()
+
+    wk = WheelKeys().load()
+
+    keypair = ed25519ll.crypto_sign_keypair()
+    vk = native(urlsafe_b64encode(keypair.vk))
+    sk = native(urlsafe_b64encode(keypair.sk))
+    kr = keyring.get_keyring()
+    kr.set_password("wheel", vk, sk)
+    sys.stdout.write("Created Ed25519 keypair with vk={0}\n".format(vk))
+    sys.stdout.write("in {0!r}\n".format(kr))
+
+    sk2 = kr.get_password('wheel', vk)
+    if sk2 != sk:
+        raise WheelError("Keyring is broken. Could not retrieve secret key.")
+
+    sys.stdout.write("Trusting {0} to sign and verify all packages.\n".format(vk))
+    wk.add_signer('+', vk)
+    wk.trust('+', vk)
+    wk.save()
+
+
+def sign(wheelfile, replace=False, get_keyring=get_keyring):
+    """Sign a wheel"""
+    WheelKeys, keyring = get_keyring()
+
+    ed25519ll = signatures.get_ed25519ll()
+
+    wf = WheelFile(wheelfile, append=True)
+    wk = WheelKeys().load()
+
+    name = wf.parsed_filename.group('name')
+    sign_with = wk.signers(name)[0]
+    sys.stdout.write("Signing {0} with {1}\n".format(name, sign_with[1]))
+
+    vk = sign_with[1]
+    kr = keyring.get_keyring()
+    sk = kr.get_password('wheel', vk)
+    keypair = ed25519ll.Keypair(urlsafe_b64decode(binary(vk)),
+                                urlsafe_b64decode(binary(sk)))
+
+    record_name = wf.distinfo_name + '/RECORD'
+    sig_name = wf.distinfo_name + '/RECORD.jws'
+    if sig_name in wf.zipfile.namelist():
+        raise WheelError("Wheel is already signed.")
+    record_data = wf.zipfile.read(record_name)
+    payload = {"hash": "sha256=" + native(urlsafe_b64encode(hashlib.sha256(record_data).digest()))}
+    sig = signatures.sign(payload, keypair)
+    wf.zipfile.writestr(sig_name, json.dumps(sig, sort_keys=True))
+    wf.zipfile.close()
+
+
+def unsign(wheelfile):
+    """
+    Remove RECORD.jws from a wheel by truncating the zip file.
+
+    RECORD.jws must be at the end of the archive. The zip file must be an
+    ordinary archive, with the compressed files and the directory in the same
+    order, and without any non-zip content after the truncation point.
+    """
+    vzf = VerifyingZipFile(wheelfile, "a")
+    info = vzf.infolist()
+    if not (len(info) and info[-1].filename.endswith('/RECORD.jws')):
+        raise WheelError('The wheel is not signed (RECORD.jws not found at end of the archive).')
+    vzf.pop()
+    vzf.close()
+
+
+def verify(wheelfile):
+    """Verify a wheel.
+
+    The signature will be verified for internal consistency ONLY and printed.
+    Wheel's own unpack/install commands verify the manifest against the
+    signature and file contents.
+    """
+    wf = WheelFile(wheelfile)
+    sig_name = wf.distinfo_name + '/RECORD.jws'
+    try:
+        sig = json.loads(native(wf.zipfile.open(sig_name).read()))
+    except KeyError:
+        raise WheelError('The wheel is not signed (RECORD.jws not found at end of the archive).')
+
+    verified = signatures.verify(sig)
+    sys.stderr.write("Signatures are internally consistent.\n")
+    sys.stdout.write(json.dumps(verified, indent=2))
+    sys.stdout.write('\n')
+
+
+def unpack(wheelfile, dest='.'):
+    """Unpack a wheel.
+
+    Wheel content will be unpacked to {dest}/{name}-{ver}, where {name}
+    is the package name and {ver} its version.
+
+    :param wheelfile: The path to the wheel.
+    :param dest: Destination directory (default to current directory).
+    """
+    wf = WheelFile(wheelfile)
+    namever = wf.parsed_filename.group('namever')
+    destination = os.path.join(dest, namever)
+    sys.stderr.write("Unpacking to: %s\n" % (destination))
+    wf.zipfile.extractall(destination)
+    wf.zipfile.close()
+
+
+def install(requirements, requirements_file=None,
+            wheel_dirs=None, force=False, list_files=False,
+            dry_run=False):
+    """Install wheels.
+
+    :param requirements: A list of requirements or wheel files to install.
+    :param requirements_file: A file containing requirements to install.
+    :param wheel_dirs: A list of directories to search for wheels.
+    :param force: Install a wheel file even if it is not compatible.
+    :param list_files: Only list the files to install, don't install them.
+    :param dry_run: Do everything but the actual install.
+    """
+
+    # If no wheel directories specified, use the WHEELPATH environment
+    # variable, or the current directory if that is not set.
+    if not wheel_dirs:
+        wheelpath = os.getenv("WHEELPATH")
+        if wheelpath:
+            wheel_dirs = wheelpath.split(os.pathsep)
+        else:
+            wheel_dirs = [os.path.curdir]
+
+    # Get a list of all valid wheels in wheel_dirs
+    all_wheels = []
+    for d in wheel_dirs:
+        for w in os.listdir(d):
+            if w.endswith('.whl'):
+                wf = WheelFile(os.path.join(d, w))
+                if wf.compatible:
+                    all_wheels.append(wf)
+
+    # If there is a requirements file, add it to the list of requirements
+    if requirements_file:
+        # If the file doesn't exist, search for it in wheel_dirs
+        # This allows standard requirements files to be stored with the
+        # wheels.
+        if not os.path.exists(requirements_file):
+            for d in wheel_dirs:
+                name = os.path.join(d, requirements_file)
+                if os.path.exists(name):
+                    requirements_file = name
+                    break
+
+        with open(requirements_file) as fd:
+            requirements.extend(fd)
+
+    to_install = []
+    for req in requirements:
+        if req.endswith('.whl'):
+            # Explicitly specified wheel filename
+            if os.path.exists(req):
+                wf = WheelFile(req)
+                if wf.compatible or force:
+                    to_install.append(wf)
+                else:
+                    msg = ("{0} is not compatible with this Python. "
+                           "--force to install anyway.".format(req))
+                    raise WheelError(msg)
+            else:
+                # We could search on wheel_dirs, but it's probably OK to
+                # assume the user has made an error.
+                raise WheelError("No such wheel file: {}".format(req))
+            continue
+
+        # We have a requirement spec
+        # If we don't have pkg_resources, this will raise an exception
+        matches = matches_requirement(req, all_wheels)
+        if not matches:
+            raise WheelError("No match for requirement {}".format(req))
+        to_install.append(max(matches))
+
+    # We now have a list of wheels to install
+    if list_files:
+        sys.stdout.write("Installing:\n")
+
+    if dry_run:
+        return
+
+    for wf in to_install:
+        if list_files:
+            sys.stdout.write("    {0}\n".format(wf.filename))
+            continue
+        wf.install(force=force)
+        wf.zipfile.close()
+
+
+def install_scripts(distributions):
+    """
+    Regenerate the entry_points console_scripts for the named distribution.
+    """
+    try:
+        from setuptools.command import easy_install
+        import pkg_resources
+    except ImportError:
+        raise RuntimeError("'wheel install_scripts' needs setuptools.")
+
+    for dist in distributions:
+        pkg_resources_dist = pkg_resources.get_distribution(dist)
+        install = get_install_command(dist)
+        command = easy_install.easy_install(install.distribution)
+        command.args = ['wheel']  # dummy argument
+        command.finalize_options()
+        command.install_egg_scripts(pkg_resources_dist)
+
+
+def convert(installers, dest_dir, verbose):
+    require_pkgresources('wheel convert')
+
+    # Only support wheel convert if pkg_resources is present
+    from ..wininst2wheel import bdist_wininst2wheel
+    from ..egg2wheel import egg2wheel
+
+    for pat in installers:
+        for installer in iglob(pat):
+            if os.path.splitext(installer)[1] == '.egg':
+                conv = egg2wheel
+            else:
+                conv = bdist_wininst2wheel
+            if verbose:
+                sys.stdout.write("{0}... ".format(installer))
+                sys.stdout.flush()
+            conv(installer, dest_dir)
+            if verbose:
+                sys.stdout.write("OK\n")
+
+
+def parser():
+    p = argparse.ArgumentParser()
+    s = p.add_subparsers(help="commands")
+
+    def keygen_f(args):
+        keygen()
+    keygen_parser = s.add_parser('keygen', help='Generate signing key')
+    keygen_parser.set_defaults(func=keygen_f)
+
+    def sign_f(args):
+        sign(args.wheelfile)
+    sign_parser = s.add_parser('sign', help='Sign wheel')
+    sign_parser.add_argument('wheelfile', help='Wheel file')
+    sign_parser.set_defaults(func=sign_f)
+
+    def unsign_f(args):
+        unsign(args.wheelfile)
+    unsign_parser = s.add_parser('unsign', help=unsign.__doc__)
+    unsign_parser.add_argument('wheelfile', help='Wheel file')
+    unsign_parser.set_defaults(func=unsign_f)
+
+    def verify_f(args):
+        verify(args.wheelfile)
+    verify_parser = s.add_parser('verify', help=verify.__doc__)
+    verify_parser.add_argument('wheelfile', help='Wheel file')
+    verify_parser.set_defaults(func=verify_f)
+
+    def unpack_f(args):
+        unpack(args.wheelfile, args.dest)
+    unpack_parser = s.add_parser('unpack', help='Unpack wheel')
+    unpack_parser.add_argument('--dest', '-d', help='Destination directory',
+                               default='.')
+    unpack_parser.add_argument('wheelfile', help='Wheel file')
+    unpack_parser.set_defaults(func=unpack_f)
+
+    def install_f(args):
+        install(args.requirements, args.requirements_file,
+                args.wheel_dirs, args.force, args.list_files)
+    install_parser = s.add_parser('install', help='Install wheels')
+    install_parser.add_argument('requirements', nargs='*',
+                                help='Requirements to install.')
+    install_parser.add_argument('--force', default=False,
+                                action='store_true',
+                                help='Install incompatible wheel files.')
+    install_parser.add_argument('--wheel-dir', '-d', action='append',
+                                dest='wheel_dirs',
+                                help='Directories containing wheels.')
+    install_parser.add_argument('--requirements-file', '-r',
+                                help="A file containing requirements to "
+                                "install.")
+    install_parser.add_argument('--list', '-l', default=False,
+                                dest='list_files',
+                                action='store_true',
+                                help="List wheels which would be installed, "
+                                "but don't actually install anything.")
+    install_parser.set_defaults(func=install_f)
+
+    def install_scripts_f(args):
+        install_scripts(args.distributions)
+    install_scripts_parser = s.add_parser('install-scripts', help='Install console_scripts')
+    install_scripts_parser.add_argument('distributions', nargs='*',
+                                        help='Regenerate console_scripts for these distributions')
+    install_scripts_parser.set_defaults(func=install_scripts_f)
+
+    def convert_f(args):
+        convert(args.installers, args.dest_dir, args.verbose)
+    convert_parser = s.add_parser('convert', help='Convert egg or wininst to wheel')
+    convert_parser.add_argument('installers', nargs='*', help='Installers to convert')
+    convert_parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                                help="Directory to store wheels (default %(default)s)")
+    convert_parser.add_argument('--verbose', '-v', action='store_true')
+    convert_parser.set_defaults(func=convert_f)
+
+    def version_f(args):
+        from .. import __version__
+        sys.stdout.write("wheel %s\n" % __version__)
+    version_parser = s.add_parser('version', help='Print version and exit')
+    version_parser.set_defaults(func=version_f)
+
+    def help_f(args):
+        p.print_help()
+    help_parser = s.add_parser('help', help='Show this help')
+    help_parser.set_defaults(func=help_f)
+
+    return p
+
+
+def main():
+    p = parser()
+    args = p.parse_args()
+    if not hasattr(args, 'func'):
+        p.print_help()
+    else:
+        # XXX on Python 3.3 we get 'args has no func' rather than short help.
+        try:
+            args.func(args)
+            return 0
+        except WheelError as e:
+            sys.stderr.write(e.message + "\n")
+    return 1
diff --git a/venv1/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc b/venv1/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc
new file mode 100644
index 0000000..f0df108
Binary files /dev/null and b/venv1/lib/python3.5/site-packages/wheel/tool/__pycache__/__init__.cpython-35.pyc differ
diff --git a/venv1/lib/python3.5/site-packages/wheel/util.py b/venv1/lib/python3.5/site-packages/wheel/util.py
new file mode 100644
index 0000000..c58d108
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/util.py
@@ -0,0 +1,176 @@
+"""Utility functions."""
+
+import base64
+import hashlib
+import json
+import os
+import sys
+from collections import OrderedDict
+
+__all__ = ['urlsafe_b64encode', 'urlsafe_b64decode', 'utf8',
+           'to_json', 'from_json', 'matches_requirement']
+
+
+# For encoding ascii back and forth between bytestrings, as is repeatedly
+# necessary in JSON-based crypto under Python 3
+if sys.version_info[0] < 3:
+    text_type = unicode  # noqa: F821
+
+    def native(s):
+        return s
+else:
+    text_type = str
+
+    def native(s):
+        if isinstance(s, bytes):
+            return s.decode('ascii')
+        return s
+
+
+def urlsafe_b64encode(data):
+    """urlsafe_b64encode without padding"""
+    return base64.urlsafe_b64encode(data).rstrip(binary('='))
+
+
+def urlsafe_b64decode(data):
+    """urlsafe_b64decode without padding"""
+    pad = b'=' * (4 - (len(data) & 3))
+    return base64.urlsafe_b64decode(data + pad)
+
+
+def to_json(o):
+    """Convert given data to JSON."""
+    return json.dumps(o, sort_keys=True)
+
+
+def from_json(j):
+    """Decode a JSON payload."""
+    return json.loads(j)
+
+
+def open_for_csv(name, mode):
+    if sys.version_info[0] < 3:
+        nl = {}
+        bin = 'b'
+    else:
+        nl = {'newline': ''}
+        bin = ''
+
+    return open(name, mode + bin, **nl)
+
+
+def utf8(data):
+    """Utf-8 encode data."""
+    if isinstance(data, text_type):
+        return data.encode('utf-8')
+    return data
+
+
+def binary(s):
+    if isinstance(s, text_type):
+        return s.encode('ascii')
+    return s
+
+
+class HashingFile(object):
+    def __init__(self, path, mode, hashtype='sha256'):
+        self.fd = open(path, mode)
+        self.hashtype = hashtype
+        self.hash = hashlib.new(hashtype)
+        self.length = 0
+
+    def write(self, data):
+        self.hash.update(data)
+        self.length += len(data)
+        self.fd.write(data)
+
+    def close(self):
+        self.fd.close()
+
+    def digest(self):
+        if self.hashtype == 'md5':
+            return self.hash.hexdigest()
+        digest = self.hash.digest()
+        return self.hashtype + '=' + native(urlsafe_b64encode(digest))
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.fd.close()
+
+
+class OrderedDefaultDict(OrderedDict):
+    def __init__(self, *args, **kwargs):
+        if not args:
+            self.default_factory = None
+        else:
+            if not (args[0] is None or callable(args[0])):
+                raise TypeError('first argument must be callable or None')
+            self.default_factory = args[0]
+            args = args[1:]
+        super(OrderedDefaultDict, self).__init__(*args, **kwargs)
+
+    def __missing__(self, key):
+        if self.default_factory is None:
+            raise KeyError(key)
+        self[key] = default = self.default_factory()
+        return default
+
+
+if sys.platform == 'win32':
+    import ctypes.wintypes
+    # CSIDL_APPDATA for reference - not used here for compatibility with
+    # dirspec, which uses LOCAL_APPDATA and COMMON_APPDATA in that order
+    csidl = dict(CSIDL_APPDATA=26, CSIDL_LOCAL_APPDATA=28, CSIDL_COMMON_APPDATA=35)
+
+    def get_path(name):
+        SHGFP_TYPE_CURRENT = 0
+        buf = ctypes.create_unicode_buffer(ctypes.wintypes.MAX_PATH)
+        ctypes.windll.shell32.SHGetFolderPathW(0, csidl[name], 0, SHGFP_TYPE_CURRENT, buf)
+        return buf.value
+
+    def save_config_path(*resource):
+        appdata = get_path("CSIDL_LOCAL_APPDATA")
+        path = os.path.join(appdata, *resource)
+        if not os.path.isdir(path):
+            os.makedirs(path)
+        return path
+
+    def load_config_paths(*resource):
+        ids = ["CSIDL_LOCAL_APPDATA", "CSIDL_COMMON_APPDATA"]
+        for id in ids:
+            base = get_path(id)
+            path = os.path.join(base, *resource)
+            if os.path.exists(path):
+                yield path
+else:
+    def save_config_path(*resource):
+        import xdg.BaseDirectory
+        return xdg.BaseDirectory.save_config_path(*resource)
+
+    def load_config_paths(*resource):
+        import xdg.BaseDirectory
+        return xdg.BaseDirectory.load_config_paths(*resource)
+
+
+def matches_requirement(req, wheels):
+    """List of wheels matching a requirement.
+
+    :param req: The requirement to satisfy
+    :param wheels: List of wheels to search.
+    """
+    try:
+        from pkg_resources import Distribution, Requirement
+    except ImportError:
+        raise RuntimeError("Cannot use requirements without pkg_resources")
+
+    req = Requirement.parse(req)
+
+    selected = []
+    for wf in wheels:
+        f = wf.parsed_filename
+        dist = Distribution(project_name=f.group("name"), version=f.group("ver"))
+        if dist in req:
+            selected.append(wf)
+    return selected
diff --git a/venv1/lib/python3.5/site-packages/wheel/wininst2wheel.py b/venv1/lib/python3.5/site-packages/wheel/wininst2wheel.py
new file mode 100644
index 0000000..b8a3469
--- /dev/null
+++ b/venv1/lib/python3.5/site-packages/wheel/wininst2wheel.py
@@ -0,0 +1,217 @@
+#!/usr/bin/env python
+import distutils.dist
+import os.path
+import re
+import sys
+import tempfile
+import zipfile
+from argparse import ArgumentParser
+from glob import iglob
+from shutil import rmtree
+
+import wheel.bdist_wheel
+from wheel.archive import archive_wheelfile
+
+egg_info_re = re.compile(r'''(^|/)(?P<name>[^/]+?)-(?P<ver>.+?)
+    (-(?P<pyver>.+?))?(-(?P<arch>.+?))?.egg-info(/|$)''', re.VERBOSE)
+
+
+def parse_info(wininfo_name, egginfo_name):
+    """Extract metadata from filenames.
+
+    Extracts the 4 metadataitems needed (name, version, pyversion, arch) from
+    the installer filename and the name of the egg-info directory embedded in
+    the zipfile (if any).
+
+    The egginfo filename has the format::
+
+        name-ver(-pyver)(-arch).egg-info
+
+    The installer filename has the format::
+
+        name-ver.arch(-pyver).exe
+
+    Some things to note:
+
+    1. The installer filename is not definitive. An installer can be renamed
+       and work perfectly well as an installer. So more reliable data should
+       be used whenever possible.
+    2. The egg-info data should be preferred for the name and version, because
+       these come straight from the distutils metadata, and are mandatory.
+    3. The pyver from the egg-info data should be ignored, as it is
+       constructed from the version of Python used to build the installer,
+       which is irrelevant - the installer filename is correct here (even to
+       the point that when it's not there, any version is implied).
+    4. The architecture must be taken from the installer filename, as it is
+       not included in the egg-info data.
+    5. Architecture-neutral installers still have an architecture because the
+       installer format itself (being executable) is architecture-specific. We
+       should therefore ignore the architecture if the content is pure-python.
+    """
+
+    egginfo = None
+    if egginfo_name:
+        egginfo = egg_info_re.search(egginfo_name)
+        if not egginfo:
+            raise ValueError("Egg info filename %s is not valid" % (egginfo_name,))
+
+    # Parse the wininst filename
+    # 1. Distribution name (up to the first '-')
+    w_name, sep, rest = wininfo_name.partition('-')
+    if not sep:
+        raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
+
+    # Strip '.exe'
+    rest = rest[:-4]
+    # 2. Python version (from the last '-', must start with 'py')
+    rest2, sep, w_pyver = rest.rpartition('-')
+    if sep and w_pyver.startswith('py'):
+        rest = rest2
+        w_pyver = w_pyver.replace('.', '')
+    else:
+        # Not version specific - use py2.py3. While it is possible that
+        # pure-Python code is not compatible with both Python 2 and 3, there
+        # is no way of knowing from the wininst format, so we assume the best
+        # here (the user can always manually rename the wheel to be more
+        # restrictive if needed).
+        w_pyver = 'py2.py3'
+    # 3. Version and architecture
+    w_ver, sep, w_arch = rest.rpartition('.')
+    if not sep:
+        raise ValueError("Installer filename %s is not valid" % (wininfo_name,))
+
+    if egginfo:
+        w_name = egginfo.group('name')
+        w_ver = egginfo.group('ver')
+
+    return dict(name=w_name, ver=w_ver, arch=w_arch, pyver=w_pyver)
+
+
+def bdist_wininst2wheel(path, dest_dir=os.path.curdir):
+    bdw = zipfile.ZipFile(path)
+
+    # Search for egg-info in the archive
+    egginfo_name = None
+    for filename in bdw.namelist():
+        if '.egg-info' in filename:
+            egginfo_name = filename
+            break
+
+    info = parse_info(os.path.basename(path), egginfo_name)
+
+    root_is_purelib = True
+    for zipinfo in bdw.infolist():
+        if zipinfo.filename.startswith('PLATLIB'):
+            root_is_purelib = False
+            break
+    if root_is_purelib:
+        paths = {'purelib': ''}
+    else:
+        paths = {'platlib': ''}
+
+    dist_info = "%(name)s-%(ver)s" % info
+    datadir = "%s.data/" % dist_info
+
+    # rewrite paths to trick ZipFile into extracting an egg
+    # XXX grab wininst .ini - between .exe, padding, and first zip file.
+    members = []
+    egginfo_name = ''
+    for zipinfo in bdw.infolist():
+        key, basename = zipinfo.filename.split('/', 1)
+        key = key.lower()
+        basepath = paths.get(key, None)
+        if basepath is None:
+            basepath = datadir + key.lower() + '/'
+        oldname = zipinfo.filename
+        newname = basepath + basename
+        zipinfo.filename = newname
+        del bdw.NameToInfo[oldname]
+        bdw.NameToInfo[newname] = zipinfo
+        # Collect member names, but omit '' (from an entry like "PLATLIB/"
+        if newname:
+            members.append(newname)
+        # Remember egg-info name for the egg2dist call below
+        if not egginfo_name:
+            if newname.endswith('.egg-info'):
+                egginfo_name = newname
+            elif '.egg-info/' in newname:
+                egginfo_name, sep, _ = newname.rpartition('/')
+    dir = tempfile.mkdtemp(suffix="_b2w")
+    bdw.extractall(dir, members)
+
+    # egg2wheel
+    abi = 'none'
+    pyver = info['pyver']
+    arch = (info['arch'] or 'any').replace('.', '_').replace('-', '_')
+    # Wininst installers always have arch even if they are not
+    # architecture-specific (because the format itself is).
+    # So, assume the content is architecture-neutral if root is purelib.
+    if root_is_purelib:
+        arch = 'any'
+    # If the installer is architecture-specific, it's almost certainly also
+    # CPython-specific.
+    if arch != 'any':
+        pyver = pyver.replace('py', 'cp')
+    wheel_name = '-'.join((
+                          dist_info,
+                          pyver,
+                          abi,
+                          arch
+                          ))
+    if root_is_purelib:
+        bw = wheel.bdist_wheel.bdist_wheel(distutils.dist.Distribution())
+    else:
+        bw = _bdist_wheel_tag(distutils.dist.Distribution())
+
+    bw.root_is_pure = root_is_purelib
+    bw.python_tag = pyver
+    bw.plat_name_supplied = True
+    bw.plat_name = info['arch'] or 'any'
+
+    if not root_is_purelib:
+        bw.full_tag_supplied = True
+        bw.full_tag = (pyver, abi, arch)
+
+    dist_info_dir = os.path.join(dir, '%s.dist-info' % dist_info)
+    bw.egg2dist(os.path.join(dir, egginfo_name), dist_info_dir)
+    bw.write_wheelfile(dist_info_dir, generator='wininst2wheel')
+    bw.write_record(dir, dist_info_dir)
+
+    archive_wheelfile(os.path.join(dest_dir, wheel_name), dir)
+    rmtree(dir)
+
+
+class _bdist_wheel_tag(wheel.bdist_wheel.bdist_wheel):
+    # allow the client to override the default generated wheel tag
+    # The default bdist_wheel implementation uses python and abi tags
+    # of the running python process. This is not suitable for
+    # generating/repackaging prebuild binaries.
+
+    full_tag_supplied = False
+    full_tag = None  # None or a (pytag, soabitag, plattag) triple
+
+    def get_tag(self):
+        if self.full_tag_supplied and self.full_tag is not None:
+            return self.full_tag
+        else:
+            return super(_bdist_wheel_tag, self).get_tag()
+
+
+def main():
+    parser = ArgumentParser()
+    parser.add_argument('installers', nargs='*', help="Installers to convert")
+    parser.add_argument('--dest-dir', '-d', default=os.path.curdir,
+                        help="Directory to store wheels (default %(default)s)")
+    parser.add_argument('--verbose', '-v', action='store_true')
+    args = parser.parse_args()
+    for pat in args.installers:
+        for installer in iglob(pat):
+            if args.verbose:
+                sys.stdout.write("{0}... ".format(installer))
+            bdist_wininst2wheel(installer, args.dest_dir)
+            if args.verbose:
+                sys.stdout.write("OK\n")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/venv1/lib/python3.5/site.py b/venv1/lib/python3.5/site.py
new file mode 100644
index 0000000..7969769
--- /dev/null
+++ b/venv1/lib/python3.5/site.py
@@ -0,0 +1,758 @@
+"""Append module search paths for third-party packages to sys.path.
+
+****************************************************************
+* This module is automatically imported during initialization. *
+****************************************************************
+
+In earlier versions of Python (up to 1.5a3), scripts or modules that
+needed to use site-specific modules would place ``import site''
+somewhere near the top of their code.  Because of the automatic
+import, this is no longer necessary (but code that does it still
+works).
+
+This will append site-specific paths to the module search path.  On
+Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
+appends lib/python<version>/site-packages as well as lib/site-python.
+It also supports the Debian convention of
+lib/python<version>/dist-packages.  On other platforms (mainly Mac and
+Windows), it uses just sys.prefix (and sys.exec_prefix, if different,
+but this is unlikely).  The resulting directories, if they exist, are
+appended to sys.path, and also inspected for path configuration files.
+
+FOR DEBIAN, this sys.path is augmented with directories in /usr/local.
+Local addons go into /usr/local/lib/python<version>/site-packages
+(resp. /usr/local/lib/site-python), Debian addons install into
+/usr/{lib,share}/python<version>/dist-packages.
+
+A path configuration file is a file whose name has the form
+<package>.pth; its contents are additional directories (one per line)
+to be added to sys.path.  Non-existing directories (or
+non-directories) are never added to sys.path; no directory is added to
+sys.path more than once.  Blank lines and lines beginning with
+'#' are skipped. Lines starting with 'import' are executed.
+
+For example, suppose sys.prefix and sys.exec_prefix are set to
+/usr/local and there is a directory /usr/local/lib/python2.X/site-packages
+with three subdirectories, foo, bar and spam, and two path
+configuration files, foo.pth and bar.pth.  Assume foo.pth contains the
+following:
+
+  # foo package configuration
+  foo
+  bar
+  bletch
+
+and bar.pth contains:
+
+  # bar package configuration
+  bar
+
+Then the following directories are added to sys.path, in this order:
+
+  /usr/local/lib/python2.X/site-packages/bar
+  /usr/local/lib/python2.X/site-packages/foo
+
+Note that bletch is omitted because it doesn't exist; bar precedes foo
+because bar.pth comes alphabetically before foo.pth; and spam is
+omitted because it is not mentioned in either path configuration file.
+
+After these path manipulations, an attempt is made to import a module
+named sitecustomize, which can perform arbitrary additional
+site-specific customizations.  If this import fails with an
+ImportError exception, it is silently ignored.
+
+"""
+
+import sys
+import os
+try:
+    import __builtin__ as builtins
+except ImportError:
+    import builtins
+try:
+    set
+except NameError:
+    from sets import Set as set
+
+# Prefixes for site-packages; add additional prefixes like /usr/local here
+PREFIXES = [sys.prefix, sys.exec_prefix]
+# Enable per user site-packages directory
+# set it to False to disable the feature or True to force the feature
+ENABLE_USER_SITE = None
+# for distutils.commands.install
+USER_SITE = None
+USER_BASE = None
+
+_is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32
+_is_pypy = hasattr(sys, 'pypy_version_info')
+_is_jython = sys.platform[:4] == 'java'
+if _is_jython:
+    ModuleType = type(os)
+
+def makepath(*paths):
+    dir = os.path.join(*paths)
+    if _is_jython and (dir == '__classpath__' or
+                       dir.startswith('__pyclasspath__')):
+        return dir, dir
+    dir = os.path.abspath(dir)
+    return dir, os.path.normcase(dir)
+
+def abs__file__():
+    """Set all module' __file__ attribute to an absolute path"""
+    for m in sys.modules.values():
+        if ((_is_jython and not isinstance(m, ModuleType)) or
+            hasattr(m, '__loader__')):
+            # only modules need the abspath in Jython. and don't mess
+            # with a PEP 302-supplied __file__
+            continue
+        f = getattr(m, '__file__', None)
+        if f is None:
+            continue
+        m.__file__ = os.path.abspath(f)
+
+def removeduppaths():
+    """ Remove duplicate entries from sys.path along with making them
+    absolute"""
+    # This ensures that the initial path provided by the interpreter contains
+    # only absolute pathnames, even if we're running from the build directory.
+    L = []
+    known_paths = set()
+    for dir in sys.path:
+        # Filter out duplicate paths (on case-insensitive file systems also
+        # if they only differ in case); turn relative paths into absolute
+        # paths.
+        dir, dircase = makepath(dir)
+        if not dircase in known_paths:
+            L.append(dir)
+            known_paths.add(dircase)
+    sys.path[:] = L
+    return known_paths
+
+# XXX This should not be part of site.py, since it is needed even when
+# using the -S option for Python.  See http://www.python.org/sf/586680
+def addbuilddir():
+    """Append ./build/lib.<platform> in case we're running in the build dir
+    (especially for Guido :-)"""
+    from distutils.util import get_platform
+    s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
+    if hasattr(sys, 'gettotalrefcount'):
+        s += '-pydebug'
+    s = os.path.join(os.path.dirname(sys.path[-1]), s)
+    sys.path.append(s)
+
+def _init_pathinfo():
+    """Return a set containing all existing directory entries from sys.path"""
+    d = set()
+    for dir in sys.path:
+        try:
+            if os.path.isdir(dir):
+                dir, dircase = makepath(dir)
+                d.add(dircase)
+        except TypeError:
+            continue
+    return d
+
+def addpackage(sitedir, name, known_paths):
+    """Add a new path to known_paths by combining sitedir and 'name' or execute
+    sitedir if it starts with 'import'"""
+    if known_paths is None:
+        _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    fullname = os.path.join(sitedir, name)
+    try:
+        f = open(fullname, "rU")
+    except IOError:
+        return
+    try:
+        for line in f:
+            if line.startswith("#"):
+                continue
+            if line.startswith("import"):
+                exec(line)
+                continue
+            line = line.rstrip()
+            dir, dircase = makepath(sitedir, line)
+            if not dircase in known_paths and os.path.exists(dir):
+                sys.path.append(dir)
+                known_paths.add(dircase)
+    finally:
+        f.close()
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitedir(sitedir, known_paths=None):
+    """Add 'sitedir' argument to sys.path if missing and handle .pth files in
+    'sitedir'"""
+    if known_paths is None:
+        known_paths = _init_pathinfo()
+        reset = 1
+    else:
+        reset = 0
+    sitedir, sitedircase = makepath(sitedir)
+    if not sitedircase in known_paths:
+        sys.path.append(sitedir)        # Add path component
+    try:
+        names = os.listdir(sitedir)
+    except os.error:
+        return
+    names.sort()
+    for name in names:
+        if name.endswith(os.extsep + "pth"):
+            addpackage(sitedir, name, known_paths)
+    if reset:
+        known_paths = None
+    return known_paths
+
+def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix):
+    """Add site-packages (and possibly site-python) to sys.path"""
+    prefixes = [os.path.join(sys_prefix, "local"), sys_prefix]
+    if exec_prefix != sys_prefix:
+        prefixes.append(os.path.join(exec_prefix, "local"))
+
+    for prefix in prefixes:
+        if prefix:
+            if sys.platform in ('os2emx', 'riscos') or _is_jython:
+                sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
+            elif _is_pypy:
+                sitedirs = [os.path.join(prefix, 'site-packages')]
+            elif sys.platform == 'darwin' and prefix == sys_prefix:
+
+                if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python
+
+                    sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"),
+                                os.path.join(prefix, "Extras", "lib", "python")]
+
+                else: # any other Python distros on OSX work this way
+                    sitedirs = [os.path.join(prefix, "lib",
+                                             "python" + sys.version[:3], "site-packages")]
+
+            elif os.sep == '/':
+                sitedirs = [os.path.join(prefix,
+                                         "lib",
+                                         "python" + sys.version[:3],
+                                         "site-packages"),
+                            os.path.join(prefix, "lib", "site-python"),
+                            os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")]
+                lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages")
+                if (os.path.exists(lib64_dir) and
+                    os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]):
+                    if _is_64bit:
+                        sitedirs.insert(0, lib64_dir)
+                    else:
+                        sitedirs.append(lib64_dir)
+                try:
+                    # sys.getobjects only available in --with-pydebug build
+                    sys.getobjects
+                    sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
+                except AttributeError:
+                    pass
+                # Debian-specific dist-packages directories:
+                sitedirs.append(os.path.join(prefix, "local/lib",
+                                             "python" + sys.version[:3],
+                                             "dist-packages"))
+                if sys.version[0] == '2':
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[:3],
+                                                 "dist-packages"))
+                else:
+                    sitedirs.append(os.path.join(prefix, "lib",
+                                                 "python" + sys.version[0],
+                                                 "dist-packages"))
+                sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
+            else:
+                sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
+            if sys.platform == 'darwin':
+                # for framework builds *only* we add the standard Apple
+                # locations. Currently only per-user, but /Library and
+                # /Network/Library could be added too
+                if 'Python.framework' in prefix:
+                    home = os.environ.get('HOME')
+                    if home:
+                        sitedirs.append(
+                            os.path.join(home,
+                                         'Library',
+                                         'Python',
+                                         sys.version[:3],
+                                         'site-packages'))
+            for sitedir in sitedirs:
+                if os.path.isdir(sitedir):
+                    addsitedir(sitedir, known_paths)
+    return None
+
+def check_enableusersite():
+    """Check if user site directory is safe for inclusion
+
+    The function tests for the command line flag (including environment var),
+    process uid/gid equal to effective uid/gid.
+
+    None: Disabled for security reasons
+    False: Disabled by user (command line option)
+    True: Safe and enabled
+    """
+    if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
+        return False
+
+    if hasattr(os, "getuid") and hasattr(os, "geteuid"):
+        # check process uid == effective uid
+        if os.geteuid() != os.getuid():
+            return None
+    if hasattr(os, "getgid") and hasattr(os, "getegid"):
+        # check process gid == effective gid
+        if os.getegid() != os.getgid():
+            return None
+
+    return True
+
+def addusersitepackages(known_paths):
+    """Add a per user site-package to sys.path
+
+    Each user has its own python directory with site-packages in the
+    home directory.
+
+    USER_BASE is the root directory for all Python versions
+
+    USER_SITE is the user specific site-packages directory
+
+    USER_SITE/.. can be used for data.
+    """
+    global USER_BASE, USER_SITE, ENABLE_USER_SITE
+    env_base = os.environ.get("PYTHONUSERBASE", None)
+
+    def joinuser(*args):
+        return os.path.expanduser(os.path.join(*args))
+
+    #if sys.platform in ('os2emx', 'riscos'):
+    #    # Don't know what to put here
+    #    USER_BASE = ''
+    #    USER_SITE = ''
+    if os.name == "nt":
+        base = os.environ.get("APPDATA") or "~"
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser(base, "Python")
+        USER_SITE = os.path.join(USER_BASE,
+                                 "Python" + sys.version[0] + sys.version[2],
+                                 "site-packages")
+    else:
+        if env_base:
+            USER_BASE = env_base
+        else:
+            USER_BASE = joinuser("~", ".local")
+        USER_SITE = os.path.join(USER_BASE, "lib",
+                                 "python" + sys.version[:3],
+                                 "site-packages")
+
+    if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
+        addsitedir(USER_SITE, known_paths)
+    if ENABLE_USER_SITE:
+        for dist_libdir in ("lib", "local/lib"):
+            user_site = os.path.join(USER_BASE, dist_libdir,
+                                     "python" + sys.version[:3],
+                                     "dist-packages")
+            if os.path.isdir(user_site):
+                addsitedir(user_site, known_paths)
+    return known_paths
+
+
+
+def setBEGINLIBPATH():
+    """The OS/2 EMX port has optional extension modules that do double duty
+    as DLLs (and must use the .DLL file extension) for other extensions.
+    The library search path needs to be amended so these will be found
+    during module import.  Use BEGINLIBPATH so that these are at the start
+    of the library search path.
+
+    """
+    dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
+    libpath = os.environ['BEGINLIBPATH'].split(';')
+    if libpath[-1]:
+        libpath.append(dllpath)
+    else:
+        libpath[-1] = dllpath
+    os.environ['BEGINLIBPATH'] = ';'.join(libpath)
+
+
+def setquit():
+    """Define new built-ins 'quit' and 'exit'.
+    These are simply strings that display a hint on how to exit.
+
+    """
+    if os.sep == ':':
+        eof = 'Cmd-Q'
+    elif os.sep == '\\':
+        eof = 'Ctrl-Z plus Return'
+    else:
+        eof = 'Ctrl-D (i.e. EOF)'
+
+    class Quitter(object):
+        def __init__(self, name):
+            self.name = name
+        def __repr__(self):
+            return 'Use %s() or %s to exit' % (self.name, eof)
+        def __call__(self, code=None):
+            # Shells like IDLE catch the SystemExit, but listen when their
+            # stdin wrapper is closed.
+            try:
+                sys.stdin.close()
+            except:
+                pass
+            raise SystemExit(code)
+    builtins.quit = Quitter('quit')
+    builtins.exit = Quitter('exit')
+
+
+class _Printer(object):
+    """interactive prompt objects for printing the license text, a list of
+    contributors and the copyright notice."""
+
+    MAXLINES = 23
+
+    def __init__(self, name, data, files=(), dirs=()):
+        self.__name = name
+        self.__data = data
+        self.__files = files
+        self.__dirs = dirs
+        self.__lines = None
+
+    def __setup(self):
+        if self.__lines:
+            return
+        data = None
+        for dir in self.__dirs:
+            for filename in self.__files:
+                filename = os.path.join(dir, filename)
+                try:
+                    fp = open(filename, "rU")
+                    data = fp.read()
+                    fp.close()
+                    break
+                except IOError:
+                    pass
+            if data:
+                break
+        if not data:
+            data = self.__data
+        self.__lines = data.split('\n')
+        self.__linecnt = len(self.__lines)
+
+    def __repr__(self):
+        self.__setup()
+        if len(self.__lines) <= self.MAXLINES:
+            return "\n".join(self.__lines)
+        else:
+            return "Type %s() to see the full %s text" % ((self.__name,)*2)
+
+    def __call__(self):
+        self.__setup()
+        prompt = 'Hit Return for more, or q (and Return) to quit: '
+        lineno = 0
+        while 1:
+            try:
+                for i in range(lineno, lineno + self.MAXLINES):
+                    print(self.__lines[i])
+            except IndexError:
+                break
+            else:
+                lineno += self.MAXLINES
+                key = None
+                while key is None:
+                    try:
+                        key = raw_input(prompt)
+                    except NameError:
+                        key = input(prompt)
+                    if key not in ('', 'q'):
+                        key = None
+                if key == 'q':
+                    break
+
+def setcopyright():
+    """Set 'copyright' and 'credits' in __builtin__"""
+    builtins.copyright = _Printer("copyright", sys.copyright)
+    if _is_jython:
+        builtins.credits = _Printer(
+            "credits",
+            "Jython is maintained by the Jython developers (www.jython.org).")
+    elif _is_pypy:
+        builtins.credits = _Printer(
+            "credits",
+            "PyPy is maintained by the PyPy developers: http://pypy.org/")
+    else:
+        builtins.credits = _Printer("credits", """\
+    Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
+    for supporting Python development.  See www.python.org for more information.""")
+    here = os.path.dirname(os.__file__)
+    builtins.license = _Printer(
+        "license", "See http://www.python.org/%.3s/license.html" % sys.version,
+        ["LICENSE.txt", "LICENSE"],
+        [os.path.join(here, os.pardir), here, os.curdir])
+
+
+class _Helper(object):
+    """Define the built-in 'help'.
+    This is a wrapper around pydoc.help (with a twist).
+
+    """
+
+    def __repr__(self):
+        return "Type help() for interactive help, " \
+               "or help(object) for help about object."
+    def __call__(self, *args, **kwds):
+        import pydoc
+        return pydoc.help(*args, **kwds)
+
+def sethelper():
+    builtins.help = _Helper()
+
+def aliasmbcs():
+    """On Windows, some default encodings are not provided by Python,
+    while they are always available as "mbcs" in each locale. Make
+    them usable by aliasing to "mbcs" in such a case."""
+    if sys.platform == 'win32':
+        import locale, codecs
+        enc = locale.getdefaultlocale()[1]
+        if enc.startswith('cp'):            # "cp***" ?
+            try:
+                codecs.lookup(enc)
+            except LookupError:
+                import encodings
+                encodings._cache[enc] = encodings._unknown
+                encodings.aliases.aliases[enc] = 'mbcs'
+
+def setencoding():
+    """Set the string encoding used by the Unicode implementation.  The
+    default is 'ascii', but if you're willing to experiment, you can
+    change this."""
+    encoding = "ascii" # Default value set by _PyUnicode_Init()
+    if 0:
+        # Enable to support locale aware default string encodings.
+        import locale
+        loc = locale.getdefaultlocale()
+        if loc[1]:
+            encoding = loc[1]
+    if 0:
+        # Enable to switch off string to Unicode coercion and implicit
+        # Unicode to string conversion.
+        encoding = "undefined"
+    if encoding != "ascii":
+        # On Non-Unicode builds this will raise an AttributeError...
+        sys.setdefaultencoding(encoding) # Needs Python Unicode build !
+
+
+def execsitecustomize():
+    """Run custom site specific code, if available."""
+    try:
+        import sitecustomize
+    except ImportError:
+        pass
+
+def virtual_install_main_packages():
+    f = open(os.path.join(os.path.dirname(__file__), 'orig-prefix.txt'))
+    sys.real_prefix = f.read().strip()
+    f.close()
+    pos = 2
+    hardcoded_relative_dirs = []
+    if sys.path[0] == '':
+        pos += 1
+    if _is_jython:
+        paths = [os.path.join(sys.real_prefix, 'Lib')]
+    elif _is_pypy:
+        if sys.version_info > (3, 2):
+            cpyver = '%d' % sys.version_info[0]
+        elif sys.pypy_version_info >= (1, 5):
+            cpyver = '%d.%d' % sys.version_info[:2]
+        else:
+            cpyver = '%d.%d.%d' % sys.version_info[:3]
+        paths = [os.path.join(sys.real_prefix, 'lib_pypy'),
+                 os.path.join(sys.real_prefix, 'lib-python', cpyver)]
+        if sys.pypy_version_info < (1, 9):
+            paths.insert(1, os.path.join(sys.real_prefix,
+                                         'lib-python', 'modified-%s' % cpyver))
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        #
+        # This is hardcoded in the Python executable, but relative to sys.prefix:
+        for path in paths[:]:
+            plat_path = os.path.join(path, 'plat-%s' % sys.platform)
+            if os.path.exists(plat_path):
+                paths.append(plat_path)
+    elif sys.platform == 'win32':
+        paths = [os.path.join(sys.real_prefix, 'Lib'), os.path.join(sys.real_prefix, 'DLLs')]
+    else:
+        paths = [os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3])]
+        hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
+        lib64_path = os.path.join(sys.real_prefix, 'lib64', 'python'+sys.version[:3])
+        if os.path.exists(lib64_path):
+            if _is_64bit:
+                paths.insert(0, lib64_path)
+            else:
+                paths.append(lib64_path)
+        # This is hardcoded in the Python executable, but relative to
+        # sys.prefix.  Debian change: we need to add the multiarch triplet
+        # here, which is where the real stuff lives.  As per PEP 421, in
+        # Python 3.3+, this lives in sys.implementation, while in Python 2.7
+        # it lives in sys.
+        try:
+            arch = getattr(sys, 'implementation', sys)._multiarch
+        except AttributeError:
+            # This is a non-multiarch aware Python.  Fallback to the old way.
+            arch = sys.platform
+        plat_path = os.path.join(sys.real_prefix, 'lib',
+                                 'python'+sys.version[:3],
+                                 'plat-%s' % arch)
+        if os.path.exists(plat_path):
+            paths.append(plat_path)
+    # This is hardcoded in the Python executable, but
+    # relative to sys.prefix, so we have to fix up:
+    for path in list(paths):
+        tk_dir = os.path.join(path, 'lib-tk')
+        if os.path.exists(tk_dir):
+            paths.append(tk_dir)
+
+    # These are hardcoded in the Apple's Python executable,
+    # but relative to sys.prefix, so we have to fix them up:
+    if sys.platform == 'darwin':
+        hardcoded_paths = [os.path.join(relative_dir, module)
+                           for relative_dir in hardcoded_relative_dirs
+                           for module in ('plat-darwin', 'plat-mac', 'plat-mac/lib-scriptpackages')]
+
+        for path in hardcoded_paths:
+            if os.path.exists(path):
+                paths.append(path)
+
+    sys.path.extend(paths)
+
+def force_global_eggs_after_local_site_packages():
+    """
+    Force easy_installed eggs in the global environment to get placed
+    in sys.path after all packages inside the virtualenv.  This
+    maintains the "least surprise" result that packages in the
+    virtualenv always mask global packages, never the other way
+    around.
+
+    """
+    egginsert = getattr(sys, '__egginsert', 0)
+    for i, path in enumerate(sys.path):
+        if i > egginsert and path.startswith(sys.prefix):
+            egginsert = i
+    sys.__egginsert = egginsert + 1
+
+def virtual_addsitepackages(known_paths):
+    force_global_eggs_after_local_site_packages()
+    return addsitepackages(known_paths, sys_prefix=sys.real_prefix)
+
+def fixclasspath():
+    """Adjust the special classpath sys.path entries for Jython. These
+    entries should follow the base virtualenv lib directories.
+    """
+    paths = []
+    classpaths = []
+    for path in sys.path:
+        if path == '__classpath__' or path.startswith('__pyclasspath__'):
+            classpaths.append(path)
+        else:
+            paths.append(path)
+    sys.path = paths
+    sys.path.extend(classpaths)
+
+def execusercustomize():
+    """Run custom user specific code, if available."""
+    try:
+        import usercustomize
+    except ImportError:
+        pass
+
+
+def main():
+    global ENABLE_USER_SITE
+    virtual_install_main_packages()
+    abs__file__()
+    paths_in_sys = removeduppaths()
+    if (os.name == "posix" and sys.path and
+        os.path.basename(sys.path[-1]) == "Modules"):
+        addbuilddir()
+    if _is_jython:
+        fixclasspath()
+    GLOBAL_SITE_PACKAGES = not os.path.exists(os.path.join(os.path.dirname(__file__), 'no-global-site-packages.txt'))
+    if not GLOBAL_SITE_PACKAGES:
+        ENABLE_USER_SITE = False
+    if ENABLE_USER_SITE is None:
+        ENABLE_USER_SITE = check_enableusersite()
+    paths_in_sys = addsitepackages(paths_in_sys)
+    paths_in_sys = addusersitepackages(paths_in_sys)
+    if GLOBAL_SITE_PACKAGES:
+        paths_in_sys = virtual_addsitepackages(paths_in_sys)
+    if sys.platform == 'os2emx':
+        setBEGINLIBPATH()
+    setquit()
+    setcopyright()
+    sethelper()
+    aliasmbcs()
+    setencoding()
+    execsitecustomize()
+    if ENABLE_USER_SITE:
+        execusercustomize()
+    # Remove sys.setdefaultencoding() so that users cannot change the
+    # encoding after initialization.  The test for presence is needed when
+    # this module is run as a script, because this code is executed twice.
+    if hasattr(sys, "setdefaultencoding"):
+        del sys.setdefaultencoding
+
+main()
+
+def _script():
+    help = """\
+    %s [--user-base] [--user-site]
+
+    Without arguments print some useful information
+    With arguments print the value of USER_BASE and/or USER_SITE separated
+    by '%s'.
+
+    Exit codes with --user-base or --user-site:
+      0 - user site directory is enabled
+      1 - user site directory is disabled by user
+      2 - uses site directory is disabled by super user
+          or for security reasons
+     >2 - unknown error
+    """
+    args = sys.argv[1:]
+    if not args:
+        print("sys.path = [")
+        for dir in sys.path:
+            print("    %r," % (dir,))
+        print("]")
+        def exists(path):
+            if os.path.isdir(path):
+                return "exists"
+            else:
+                return "doesn't exist"
+        print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
+        print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
+        print("ENABLE_USER_SITE: %r" %  ENABLE_USER_SITE)
+        sys.exit(0)
+
+    buffer = []
+    if '--user-base' in args:
+        buffer.append(USER_BASE)
+    if '--user-site' in args:
+        buffer.append(USER_SITE)
+
+    if buffer:
+        print(os.pathsep.join(buffer))
+        if ENABLE_USER_SITE:
+            sys.exit(0)
+        elif ENABLE_USER_SITE is False:
+            sys.exit(1)
+        elif ENABLE_USER_SITE is None:
+            sys.exit(2)
+        else:
+            sys.exit(3)
+    else:
+        import textwrap
+        print(textwrap.dedent(help % (sys.argv[0], os.pathsep)))
+        sys.exit(10)
+
+if __name__ == '__main__':
+    _script()
diff --git a/venv1/lib/python3.5/sre_compile.py b/venv1/lib/python3.5/sre_compile.py
new file mode 120000
index 0000000..c6a9dd9
--- /dev/null
+++ b/venv1/lib/python3.5/sre_compile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_compile.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/sre_constants.py b/venv1/lib/python3.5/sre_constants.py
new file mode 120000
index 0000000..1e4f5e8
--- /dev/null
+++ b/venv1/lib/python3.5/sre_constants.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_constants.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/sre_parse.py b/venv1/lib/python3.5/sre_parse.py
new file mode 120000
index 0000000..e6ff23d
--- /dev/null
+++ b/venv1/lib/python3.5/sre_parse.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/sre_parse.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/stat.py b/venv1/lib/python3.5/stat.py
new file mode 120000
index 0000000..7b06884
--- /dev/null
+++ b/venv1/lib/python3.5/stat.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/stat.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/struct.py b/venv1/lib/python3.5/struct.py
new file mode 120000
index 0000000..0021bec
--- /dev/null
+++ b/venv1/lib/python3.5/struct.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/struct.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/tarfile.py b/venv1/lib/python3.5/tarfile.py
new file mode 120000
index 0000000..2a13ecb
--- /dev/null
+++ b/venv1/lib/python3.5/tarfile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tarfile.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/tempfile.py b/venv1/lib/python3.5/tempfile.py
new file mode 120000
index 0000000..c4a6786
--- /dev/null
+++ b/venv1/lib/python3.5/tempfile.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tempfile.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/token.py b/venv1/lib/python3.5/token.py
new file mode 120000
index 0000000..1d51577
--- /dev/null
+++ b/venv1/lib/python3.5/token.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/token.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/tokenize.py b/venv1/lib/python3.5/tokenize.py
new file mode 120000
index 0000000..c0c6617
--- /dev/null
+++ b/venv1/lib/python3.5/tokenize.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/tokenize.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/types.py b/venv1/lib/python3.5/types.py
new file mode 120000
index 0000000..9262928
--- /dev/null
+++ b/venv1/lib/python3.5/types.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/types.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/warnings.py b/venv1/lib/python3.5/warnings.py
new file mode 120000
index 0000000..0bd4591
--- /dev/null
+++ b/venv1/lib/python3.5/warnings.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/warnings.py
\ No newline at end of file
diff --git a/venv1/lib/python3.5/weakref.py b/venv1/lib/python3.5/weakref.py
new file mode 120000
index 0000000..1893432
--- /dev/null
+++ b/venv1/lib/python3.5/weakref.py
@@ -0,0 +1 @@
+/usr/lib/python3.5/weakref.py
\ No newline at end of file
diff --git a/venv1/pip-selfcheck.json b/venv1/pip-selfcheck.json
new file mode 100644
index 0000000..971d214
--- /dev/null
+++ b/venv1/pip-selfcheck.json
@@ -0,0 +1 @@
+{"last_check":"2017-12-10T20:32:13Z","pypi_version":"9.0.1"}
\ No newline at end of file
diff --git a/web-leases.py b/web-leases.py
new file mode 100644
index 0000000..d31d508
--- /dev/null
+++ b/web-leases.py
@@ -0,0 +1,49 @@
+from bottle import route, run, static_file, template
+import MySQLdb
+
+HOST = 'localhost'
+
+@route('/static/')
+def server_static(filepath):
+    return static_file(filepath, root='/home/mix/PycharmProjects/kea_for_miners/static/')
+
+@route('/')
+def server_homepage():
+    dbhost = '10.5.1.248'
+    dbuser = 'kea'
+    dbpass = 'kea1234'
+    dbbase = 'dhcp4'
+    sql = "SELECT " \
+          " expire, " \
+          " INET_NTOA(address) as ip4, " \
+          " HEX(hwaddr)as hw_addr, " \
+          " hostname " \
+          " FROM lease4 " \
+          "where INET_NTOA(address) like '10.6.0%'" \
+          " ORDER BY expire DESC;"
+    try:
+        conn = MySQLdb.connect(host=dbhost, user=dbuser,
+                               passwd=dbpass, db=dbbase)
+    except MySQLdb.Error as err:
+        print("Connection error: {}".format(err))
+        conn.close()
+    try:
+        cur = conn.cursor(MySQLdb.cursors.DictCursor)
+        cur.execute(sql)
+        data = cur.fetchall()
+    except MySQLdb.Error as err:
+        print("Query error: {}".format(err))
+    conn.close()
+    print(data)
+    data_list = []
+    for row in data:
+        temp = []
+        temp.append(row['expire'])
+        temp.append(row['ip4'])
+        temp.append(row['hw_addr'])
+        temp.append(row['hostnamea'])
+        data_list.append(temp)
+    print(data_list)
+    return template('main.tpl', A = data_list)
+
+run(host=HOST, port=8080, debug=True)
\ No newline at end of file