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diff --git a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/requests/structures.py b/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/requests/structures.py
deleted file mode 100644
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--- a/venv/Lib/site-packages/pip-19.0.3-py3.7.egg/pip/_vendor/requests/structures.py
+++ /dev/null
@@ -1,103 +0,0 @@
-# -*- coding: utf-8 -*-
-
-"""
-requests.structures
-~~~~~~~~~~~~~~~~~~~
-
-Data structures that power Requests.
-"""
-
-from .compat import OrderedDict, Mapping, MutableMapping
-
-
-class CaseInsensitiveDict(MutableMapping):
- """A case-insensitive ``dict``-like object.
-
- Implements all methods and operations of
- ``MutableMapping`` as well as dict's ``copy``. Also
- provides ``lower_items``.
-
- All keys are expected to be strings. The structure remembers the
- case of the last key to be set, and ``iter(instance)``,
- ``keys()``, ``items()``, ``iterkeys()``, and ``iteritems()``
- will contain case-sensitive keys. However, querying and contains
- testing is case insensitive::
-
- cid = CaseInsensitiveDict()
- cid['Accept'] = 'application/json'
- cid['aCCEPT'] == 'application/json' # True
- list(cid) == ['Accept'] # True
-
- For example, ``headers['content-encoding']`` will return the
- value of a ``'Content-Encoding'`` response header, regardless
- of how the header name was originally stored.
-
- If the constructor, ``.update``, or equality comparison
- operations are given keys that have equal ``.lower()``s, the
- behavior is undefined.
- """
-
- def __init__(self, data=None, **kwargs):
- self._store = OrderedDict()
- if data is None:
- data = {}
- self.update(data, **kwargs)
-
- def __setitem__(self, key, value):
- # Use the lowercased key for lookups, but store the actual
- # key alongside the value.
- self._store[key.lower()] = (key, value)
-
- def __getitem__(self, key):
- return self._store[key.lower()][1]
-
- def __delitem__(self, key):
- del self._store[key.lower()]
-
- def __iter__(self):
- return (casedkey for casedkey, mappedvalue in self._store.values())
-
- def __len__(self):
- return len(self._store)
-
- def lower_items(self):
- """Like iteritems(), but with all lowercase keys."""
- return (
- (lowerkey, keyval[1])
- for (lowerkey, keyval)
- in self._store.items()
- )
-
- def __eq__(self, other):
- if isinstance(other, Mapping):
- other = CaseInsensitiveDict(other)
- else:
- return NotImplemented
- # Compare insensitively
- return dict(self.lower_items()) == dict(other.lower_items())
-
- # Copy is required
- def copy(self):
- return CaseInsensitiveDict(self._store.values())
-
- def __repr__(self):
- return str(dict(self.items()))
-
-
-class LookupDict(dict):
- """Dictionary lookup object."""
-
- def __init__(self, name=None):
- self.name = name
- super(LookupDict, self).__init__()
-
- def __repr__(self):
- return '<lookup \'%s\'>' % (self.name)
-
- def __getitem__(self, key):
- # We allow fall-through here, so values default to None
-
- return self.__dict__.get(key, None)
-
- def get(self, key, default=None):
- return self.__dict__.get(key, default)