Remove VendorAlias meta_path hook

requests/packages/__init__.py

@@ -1,107 +1,3 @@
-"""
-Copyright (c) Donald Stufft, pip, and individual contributors
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-"""
 from __future__ import absolute_import
 
-import sys
-
-
-class VendorAlias(object):
-
-    def __init__(self, package_names):
-        self._package_names = package_names
-        self._vendor_name = __name__
-        self._vendor_pkg = self._vendor_name + "."
-        self._vendor_pkgs = [
-            self._vendor_pkg + name for name in self._package_names
-        ]
-
-    def find_module(self, fullname, path=None):
-        if fullname.startswith(self._vendor_pkg):
-            return self
-
-    def load_module(self, name):
-        # Ensure that this only works for the vendored name
-        if not name.startswith(self._vendor_pkg):
-            raise ImportError(
-                "Cannot import %s, must be a subpackage of '%s'." % (
-                    name, self._vendor_name,
-                )
-            )
-
-        if not (name == self._vendor_name or
-                any(name.startswith(pkg) for pkg in self._vendor_pkgs)):
-            raise ImportError(
-                "Cannot import %s, must be one of %s." % (
-                    name, self._vendor_pkgs
-                )
-            )
-
-        # Check to see if we already have this item in sys.modules, if we do
-        # then simply return that.
-        if name in sys.modules:
-            return sys.modules[name]
-
-        # Check to see if we can import the vendor name
-        try:
-            # We do this dance here because we want to try and import this
-            # module without hitting a recursion error because of a bunch of
-            # VendorAlias instances on sys.meta_path
-            real_meta_path = sys.meta_path[:]
-            try:
-                sys.meta_path = [
-                    m for m in sys.meta_path
-                    if not isinstance(m, VendorAlias)
-                ]
-                __import__(name)
-                module = sys.modules[name]
-            finally:
-                # Re-add any additions to sys.meta_path that were made while
-                # during the import we just did, otherwise things like
-                # requests.packages.urllib3.poolmanager will fail.
-                for m in sys.meta_path:
-                    if m not in real_meta_path:
-                        real_meta_path.append(m)
-
-                # Restore sys.meta_path with any new items.
-                sys.meta_path = real_meta_path
-        except ImportError:
-            # We can't import the vendor name, so we'll try to import the
-            # "real" name.
-            real_name = name[len(self._vendor_pkg):]
-            try:
-                __import__(real_name)
-                module = sys.modules[real_name]
-            except ImportError:
-                raise ImportError("No module named '%s'" % (name,))
-
-        # If we've gotten here we've found the module we're looking for, either
-        # as part of our vendored package, or as the real name, so we'll add
-        # it to sys.modules as the vendored name so that we don't have to do
-        # the lookup again.
-        sys.modules[name] = module
-
-        # Finally, return the loaded module
-        return module
-
-
-sys.meta_path.insert(0, VendorAlias(["urllib3", "chardet"]))
+from . import urllib3