From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Wed, 2 Jan 2008 01:34:25 +0000 (+0000)
Subject: fix weakref issue seen on one buildbot test
X-Git-Tag: rel_0_4_2
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=e12075efa8b5eb45a918cc150218921d88dc2bec;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

fix weakref issue seen on one buildbot test
---

diff --git a/lib/sqlalchemy/orm/__init__.py b/lib/sqlalchemy/orm/__init__.py
index 12bbc3af4e..9201866e82 100644
--- a/lib/sqlalchemy/orm/__init__.py
+++ b/lib/sqlalchemy/orm/__init__.py
@@ -604,7 +604,7 @@ def clear_mappers():
     """
     mapperlib._COMPILE_MUTEX.acquire()
     try:
-        for mapper in _mapper_registry:
+        for mapper in list(_mapper_registry):
             mapper.dispose()
     finally:
         mapperlib._COMPILE_MUTEX.release()