New submission from nickeubank:
Found an odd behavior I'd never known about today, not sure if it's a bug or
known. Python 3.4.4 (anaconda)
True, False, 0, 1 can all be used as dictionary keys.
But
Apparently True and 1 hash to the same item and False and 0 hash to the same
item, so they can easily overwrite (which I spent a while banging my head over
today). In other words:
In[1]:
d = {True: 'a', False: 'b'}
d[0] = 'z'
d[False]
Out[1]:
'z'
----------
messages: 262232
nosy: nickeubank
priority: normal
severity: normal
status: open
title: False/0 and True/1 collision when used as dict keys?
versions: Python 3.4
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue26614>
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