From 3452701ed21981d6057339f4e219a7c26a4b7836 Mon Sep 17 00:00:00 2001
From: DongHun Kwak <dh0128.kwak@samsung.com>
Date: Mon, 14 Jan 2019 10:33:58 +0900
Subject: [PATCH] Imported Upstream version 36.2.4

---
 CHANGES.rst               |  6 ++++++
 pkg_resources/__init__.py | 21 +++++++++++----------
 setup.cfg                 |  2 +-
 setup.py                  |  2 +-
 4 files changed, 19 insertions(+), 12 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index 9af6001..8412557 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,9 @@
+v36.2.4
+-------
+
+* #1092: ``pkg_resources`` now uses ``inspect.getmro`` to
+  resolve classes in method resolution order.
+
 v36.2.3
 -------
 
diff --git a/pkg_resources/__init__.py b/pkg_resources/__init__.py
index 51b4749..f666696 100644
--- a/pkg_resources/__init__.py
+++ b/pkg_resources/__init__.py
@@ -37,6 +37,7 @@ import email.parser
 import tempfile
 import textwrap
 import itertools
+import inspect
 from pkgutil import get_importer
 
 try:
@@ -2939,20 +2940,20 @@ class Requirement(packaging.requirements.Requirement):
         return req
 
 
-def _get_mro(cls):
-    """Get an mro for a type or classic class"""
-    if not isinstance(cls, type):
-
-        class cls(cls, object):
-            pass
-
-        return cls.__mro__[1:]
-    return cls.__mro__
+def _always_object(classes):
+    """
+    Ensure object appears in the mro even
+    for old-style classes.
+    """
+    if object not in classes:
+        return classes + (object,)
+    return classes
 
 
 def _find_adapter(registry, ob):
     """Return an adapter factory for `ob` from `registry`"""
-    for t in _get_mro(getattr(ob, '__class__', type(ob))):
+    types = _always_object(inspect.getmro(getattr(ob, '__class__', type(ob))))
+    for t in types:
         if t in registry:
             return registry[t]
 
diff --git a/setup.cfg b/setup.cfg
index 5633027..ae2f2d2 100755
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 36.2.3
+current_version = 36.2.4
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index 8c21a37..bb465f2 100755
--- a/setup.py
+++ b/setup.py
@@ -89,7 +89,7 @@ def pypi_link(pkg_filename):
 
 setup_params = dict(
     name="setuptools",
-    version="36.2.3",
+    version="36.2.4",
     description="Easily download, build, install, upgrade, and uninstall "
         "Python packages",
     author="Python Packaging Authority",
-- 
2.7.4