diff -up Python-2.7.2/Lib/whichdb.py.gdbm-1.9-magic Python-2.7.2/Lib/whichdb.py

--- Python-2.7.2/Lib/whichdb.py.gdbm-1.9-magic	2011-06-11 11:46:26.000000000 -0400

+++ Python-2.7.2/Lib/whichdb.py	2011-09-30 15:45:21.778872290 -0400

@@ -91,7 +91,7 @@ def whichdb(filename):

         return ""

     # Check for GNU dbm

-    if magic == 0x13579ace:

+    if magic in (0x13579ace, 0x13579acd, 0x13579acf):

         return "gdbm"

     # Check for old Berkeley db hash file format v2

diff -up Python-2.7.2/Misc/NEWS.gdbm-1.9-magic Python-2.7.2/Misc/NEWS