[Jython-bugs] [issue2451] hash and equality of bytearrays are not consistent

[Laurent S. <re...@bu...>]

New submission from Laurent Senta:

I'm trying to use ByteArrays in a dict and I get duplicated keys,
It appears that in Jython bytearray can be hashed (not in regular python 2.7) but the hash is not consistent with the equality operator:

>>> from array import array
>>> xs = [
array('b', [99, 111, 117, 110, 116, 45, 105, 116, 101, 109, 115]),
array('b', [99, 111, 117, 110, 116, 45, 105, 116, 101, 109, 115]),
array('b', [98, 121, 116, 101, 45, 115, 105, 122, 101])
]

>>> xs[0] == xs[1]
True
>>> xs[0] == xs[2]
False
>>> map(hash, xs)
[1363822052, 1722768342, 576563150]

----------
messages: 10585
nosy: lsenta
severity: normal
status: open
title: hash and equality of bytearrays are not consistent
type: behaviour
versions: Jython 2.7

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Jython tracker <re...@bu...>
<http://bugs.jython.org/issue2451>
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