New submission from Daniel Stutzbach <dan...@stutzbachenterprises.com>:

The following is from Lib/test/test_descr.py.  It's trying to test if
looking up a special method on an object leaks references.  It tests it
by using __cmp__.  The test will always pass because Python 3 is trying
to look up __eq__, not __cmp__.  Hence, __cmp__ should be changed to __eq__.

        # Test lookup leaks [SF bug 572567]
        import sys,gc
        if hasattr(gc, 'get_objects'):
            class G(object):
                def __cmp__(self, other):
                    return 0
            g = G()
            orig_objects = len(gc.get_objects())
            for i in range(10):
                g==g
            new_objects = len(gc.get_objects())
            self.assertEqual(orig_objects, new_objects)

----------
components: Tests
messages: 93862
nosy: stutzbach
severity: normal
status: open
title: test_descr uses __cmp__ which will never be called
versions: Python 3.0, Python 3.1, Python 3.2

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue7104>
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