From cc65c1d9c8fbf0737127f8e8e7516525ee131ba1 Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Thu, 30 Apr 2009 00:30:08 +0000
Subject: Merged revisions 72135 via svnmerge from
 svn+ssh://pythondev@svn.python.org/python/trunk

........
  r72135 | benjamin.peterson | 2009-04-29 19:23:11 -0500 (Wed, 29 Apr 2009) | 1 line

  prevent ref cycles by removing bound method on close()
........
---
 Lib/aifc.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Lib/aifc.py b/Lib/aifc.py
index 36312b3..702a451 100644
--- a/Lib/aifc.py
+++ b/Lib/aifc.py
@@ -690,6 +690,8 @@ class Aifc_write:
               self._datalength != self._datawritten or \
               self._marklength:
             self._patchheader()
+        # Prevent ref cycles
+        self._convert = None
         self._file.flush()
         self._file = None
 
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