dev-python/packaging: Allow installation without setuptools

Package-Manager: portage-2.2.20.1
Signed-off-by: Justin Lecher <jlec@gentoo.org>

dev-python/packaging/files/packaging-15.3-setuptools.patch

@@ -0,0 +1,30 @@
+ setup.py | 9 +++++++--
+ 1 file changed, 7 insertions(+), 2 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 13c9dad..9d68590 100644
+--- a/setup.py
++++ b/setup.py
+@@ -15,7 +15,12 @@
+ from __future__ import absolute_import, division, print_function
+ 
+ import os
+-import setuptools
++
++try:
++    from setuptools import setup
++except ImportError:
++    from distutils.core import setup
++
+ 
+ 
+ base_dir = os.path.dirname(__file__)
+@@ -31,7 +36,7 @@ with open(os.path.join(base_dir, "CHANGELOG.rst")) as f:
+     long_description = "\n".join([long_description, f.read()])
+ 
+ 
+-setuptools.setup(
++setup(
+     name=about["__title__"],
+     version=about["__version__"],
+