[issue7502] All DocTestCase instances compare and hash equal to each other

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

The definition of __eq__ is wrong: it shouldn't compare the hashes since the hash() function isn't injective. For example, 0 and "" have equal hashes, yet they are unequal.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue7502>
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