New submission from flambda:
Hi,
I am a bit unsure if this is a problem but bear with me:
Using ipaddress I noticed that:
hash(ipaddress.ip_address("0.0.0.1")) == hash(ipaddress.ip_address("::1"))
which makes sense as ipaddress uses this:
(http://hg.python.org/cpython/file/default/Lib/ipaddress.py)
def __hash__(self):
return hash(hex(int(self._ip)))
as the hash.
This means that in a mixed environment (ipv4 and ipv6 addresses), hashtables
with hash(hex(int(b))), int(b)<2**32 will be filled more then tables with
int(b)>2**32 due to the ipv4 and ipv6 address space overlapping in the first
32bits.
If this is intended behaviour, I am sorry to have bothered you.
Have a nice evening.
----------
components: Interpreter Core
messages: 209714
nosy: flambda
priority: normal
severity: normal
status: open
title: ipaddress: hash similarities for ipv4 and ipv6
type: behavior
versions: Python 3.3
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue20446>
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