From: Guido van Rossum <guido@python.org>
Date: Fri, 18 May 2007 00:24:43 +0000 (+0000)
Subject: Protect abs__file__() from changes to sys.modules while it's running.
X-Git-Tag: v3.0a1~930
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7ac9d4020100b99b17eeddf65bafa8e87f9f293a;p=python

Protect abs__file__() from changes to sys.modules while it's running.
---

diff --git a/Lib/site.py b/Lib/site.py
index ba8603c930..47196e4109 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -69,7 +69,7 @@ def makepath(*paths):
 
 def abs__file__():
     """Set all module' __file__ attribute to an absolute path"""
-    for m in sys.modules.values():
+    for m in set(sys.modules.values()):
         if hasattr(m, '__loader__'):
             continue   # don't mess with a PEP 302-supplied __file__
         try: