Demand version 2.5.1 since 2.5 has a bug with codecs.open context managers.
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index 657cbc5..2f57f3d 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -9,6 +9,16 @@
                                 catch_warning)
 from test.test_pep352 import ignore_message_warning
 
+class NaiveException(Exception):
+    def __init__(self, x):
+        self.x = x
+
+class SomewhatNaiveException(Exception):
+    def __init__(self, x):
+        self.x = x
+        Exception.__init__(self)
+
+
 # XXX This is not really enough, each *operation* should be tested!
 
 class ExceptionTests(unittest.TestCase):
@@ -263,6 +273,10 @@
                 {'message' : '', 'args' : (u'\u3042', 0, 1, 'ouch'),
                  'object' : u'\u3042', 'reason' : 'ouch',
                  'start' : 0, 'end' : 1}),
+            (NaiveException, ('foo',),
+                {'message': '', 'args': ('foo',), 'x': 'foo'}),
+            (SomewhatNaiveException, ('foo',),
+                {'message': '', 'args': (), 'x': 'foo'}),
         ]
         try:
             exceptionList.append(
@@ -283,7 +297,8 @@
                     if type(e) is not exc:
                         raise
                     # Verify module name
-                    self.assertEquals(type(e).__module__, 'exceptions')
+                    if not type(e).__name__.endswith('NaiveException'):
+                        self.assertEquals(type(e).__module__, 'exceptions')
                     # Verify no ref leaks in Exc_str()
                     s = str(e)
                     for checkArgName in expected: