[issue3263] Odd code fragment in ABC definitions

[Raymond Hettinger]

New submission from Raymond Hettinger <rhettinger at users.sourceforge.net>:

In the Hashable ABC, there is a peculiar code fragment:

                if "__hash__" in B.__dict__:
                    if B.__dict__["__hash__"]:
                        return True
                    break

When would the innermost if-statement ever be False?  Is there a reason 
to define __hash__ to be something that evaluates to False?

----------
assignee: gvanrossum
messages: 69140
nosy: gvanrossum, rhettinger
severity: normal
status: open
title: Odd code fragment in ABC definitions
versions: Python 2.5, Python 3.0

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue3263>
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