should use 'is' here

c217a4b7 · Benjamin Peterson · 0de5fc51 · c217a4b7
Commit c217a4b7 authored Mar 15, 2011 by Benjamin Peterson
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Lib/test/test_dis.py Lib/test/test_dis.py +1 -1

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--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -276,7 +276,7 @@ class DisTests(unittest.TestCase):
        old = getattr(sys, 'last_traceback', not_defined)
        def cleanup():
-            if old != not_defined:
+            if old is not not_defined:
                sys.last_traceback = old
            else:
                del sys.last_traceback