[ python-Bugs-1460886 ] Broken __hash__ for Unicode objects

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Bugs item #1460886, was opened at 2006-03-29 19:16
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Category: Unicode
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Joe Wreschnig (piman)
Assigned to: M.-A. Lemburg (lemburg)
Summary: Broken __hash__ for Unicode objects

Initial Comment:
http://docs.python.org/ref/customization.html says
equal objects should hash to the same value. But this
is not the case when the default Unicode encoding has
been changed (by e.g. importing PyGTK).

Using Python 2.4.2:

>>> import sys
>>> reload(sys)
<module 'sys' (built-in)>
>>> sys.setdefaultencoding('utf-8')
>>> hash(u"\u1234"), hash(str(u"\u1234"))
(-518661067, -1855038154)
>>> u"\u1234" == str(u"\u1234")
True

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