[issue24410] set.__eq__ returns False when it should return NotImplemented
New submission from Steve Zelaznik:
[in] >>> d = {'x':3,'y':4,'z':5}
[in] >>> set(d.items()) == d.viewitems()
[out] >>> False
[in] >>> d.viewitems() == set(d.items())
[out] >>> True
[in] >>> set(d.items()).__eq__(d.viewitems())
[out] >>> False
The last line should return NotImplemented rather than False. This problem
seems to have been addressed in Python3.
--
components: Build
messages: 245009
nosy: zelaznik
priority: normal
severity: normal
status: open
title: set.__eq__ returns False when it should return NotImplemented
type: behavior
versions: Python 2.7
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[issue24410] set.__eq__ returns False when it should return NotImplemented
Steve Zelaznik added the comment: On second thought, it looks like somebody may have caught the problem at or before Python 2.7.9. My PC at work has 2.7.6 which is where I spotted the problem. My mac at home has 2.7.9 where it worked fine. Steve Zelaznik 410.375.8414 Sent from either an iPhone or an Android > On Jun 8, 2015, at 1:07 PM, R. David Murray wrote: > > > R. David Murray added the comment: > > See issue 21408 for the fix, which was indeed not applied to 2.7. Now we get > to decide if it should be :) > > -- > nosy: +r.david.murray > > ___ > Python tracker > <http://bugs.python.org/issue24410> > ___ -- ___ Python tracker <http://bugs.python.org/issue24410> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
