Add pkg-resources to pip freeze 'DEV_PKGS' so this Debian unique system wheel...

Add pkg-resources to pip freeze 'DEV_PKGS' so this Debian unique system wheel does not show up when pip freeze is run (Closes: #871790)

debian/changelog

+python-pip (20.0.2-5) UNRELEASED; urgency=medium
+
+  * Add pkg-resources to pip freeze 'DEV_PKGS' so this Debian unique system
+    wheel does not show up when pip freeze is run (Closes: #871790)
+
+ -- Scott Kitterman <scott@kitterman.com>  Sat, 04 Apr 2020 02:42:02 -0400
+
 python-pip (20.0.2-4) unstable; urgency=medium
 
   * Patch command/list.py to round trip versions through string and back to

debian/patches/add_pkg-resources_to_freeze.patch

+Description: Include pkg-resources in freeze system wheels
+   * Add pkg-resources to pip freeze 'DEV_PKGS' so this Debian unique system
+     wheel does not show up when pip freeze is run (Closes: #871790)
+Author: Scott Kitterman <scott@kitterman.com>
+Bug-Debian: https://bugs.debian.org/871790
+Origin: vendor
+Forwarded: not-needed
+Last-Update: 2020-04-04
+
+--- python-pip-20.0.2.orig/src/pip/_internal/commands/freeze.py
++++ python-pip-20.0.2/src/pip/_internal/commands/freeze.py
+@@ -12,7 +12,7 @@ from pip._internal.models.format_control
+ from pip._internal.operations.freeze import freeze
+ from pip._internal.utils.compat import stdlib_pkgs
+ 
+-DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel'}
++DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel', 'pkg-resources'}
+ 
+ 
+ class FreezeCommand(Command):

debian/patches/series

@@ -5,3 +5,4 @@ set_user_default.patch
 disable-pip-version-check.patch
 add_appdirs_to_vendored.patch
 commands_list_version_workaround.patch
+add_pkg-resources_to_freeze.patch