From 13252b877016aa5380f4ae36fb024671c2ea77db Mon Sep 17 00:00:00 2001
From: Brett Cannon <brett@python.org>
Date: Fri, 25 Jan 2013 13:57:16 -0500
Subject: [PATCH] Issue #16972: Have site.addpackage() consider known paths
 even when none are explicitly passed in.

---
 Lib/site.py | 2 +-
 Misc/NEWS   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Lib/site.py b/Lib/site.py
index c4c8ea040e5..732e1c4d2e7 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -146,7 +146,7 @@ def addpackage(sitedir, name, known_paths):
        and add that to known_paths, or execute it if it starts with 'import '.
     """
     if known_paths is None:
-        _init_pathinfo()
+        known_paths = _init_pathinfo()
         reset = 1
     else:
         reset = 0
diff --git a/Misc/NEWS b/Misc/NEWS
index 6a8c24ca0a4..c7e20348ea0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -218,6 +218,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #180022: Have site.addpackage() consider already known paths even when
+  none are explicitly passed in. Bug report and fix by Kirill.
+
 - Issue #1602133: on Mac OS X a shared library build (``--enable-shared``)
   now fills the ``os.environ`` variable correctly.