Upgrade urllib3 to 1.26.2

Author: pradyunsg

news/urllib3.vendor.rst

@@ -0,0 +1 @@
+Upgrade urllib3 to 1.26.2

src/pip/_vendor/urllib3/__init__.py

@@ -1,28 +1,27 @@
 """
-urllib3 - Thread-safe connection pooling and re-using.
+Python HTTP library with thread-safe connection pooling, file post support, user friendly, and more
 """
 from __future__ import absolute_import
-import warnings
 
-from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+import warnings
+from logging import NullHandler
 
 from . import exceptions
+from ._version import __version__
+from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool, connection_from_url
 from .filepost import encode_multipart_formdata
 from .poolmanager import PoolManager, ProxyManager, proxy_from_url
 from .response import HTTPResponse
 from .util.request import make_headers
-from .util.url import get_host
-from .util.timeout import Timeout
 from .util.retry import Retry
-
-
-# Set default logging handler to avoid "No handler found" warnings.
-import logging
-from logging import NullHandler
+from .util.timeout import Timeout
+from .util.url import get_host
 
 __author__ = "Andrey Petrov ([email protected])"
 __license__ = "MIT"
-__version__ = "1.25.9"
+__version__ = __version__
 
 __all__ = (
     "HTTPConnectionPool",

src/pip/_vendor/urllib3/_collections.py

@@ -17,9 +17,10 @@ def __exit__(self, exc_type, exc_value, traceback):
 
 
 from collections import OrderedDict
-from .exceptions import InvalidHeader
-from .packages.six import iterkeys, itervalues, PY3
 
+from .exceptions import InvalidHeader
+from .packages import six
+from .packages.six import iterkeys, itervalues
 
 __all__ = ["RecentlyUsedContainer", "HTTPHeaderDict"]
 
@@ -174,7 +175,7 @@ def __eq__(self, other):
     def __ne__(self, other):
         return not self.__eq__(other)
 
-    if not PY3:  # Python 2
+    if six.PY2:  # Python 2
         iterkeys = MutableMapping.iterkeys
         itervalues = MutableMapping.itervalues
 
@@ -190,7 +191,7 @@ def __iter__(self):
 
     def pop(self, key, default=__marker):
         """D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
-          If key is not found, d is returned if given, otherwise KeyError is raised.
+        If key is not found, d is returned if given, otherwise KeyError is raised.
         """
         # Using the MutableMapping function directly fails due to the private marker.
         # Using ordinary dict.pop would expose the internal structures.

src/pip/_vendor/urllib3/_version.py

@@ -0,0 +1,2 @@
+# This file is protected via CODEOWNERS
+__version__ = "1.26.2"