Re: NaN comparisons - Call For Anecdotes

References	<53BC05FB.4050707@jmunch.dk> <CAPTjJmoD5gfwpcW_45bzO846gFYMGH6+9TYowSea0SPpe-o__A@mail.gmail.com>
Date	2014-07-08 10:24 -0500
Subject	Re: NaN comparisons - Call For Anecdotes
From	Skip Montanaro <skip@pobox.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.11634.1404833099.18130.python-list@python.org> (permalink)

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On Tue, Jul 8, 2014 at 10:19 AM, Chris Angelico <rosuav@gmail.com> wrote:
> For hash keys, float object identity will successfully look them up:
>>>> d={}
>>>> d[float("nan")]=1
>>>> d[float("nan")]=2
>>>> x=float("nan")
>>>> d[x]=3
>>>> d[x]
> 3
>>>> d
> {nan: 1, nan: 2, nan: 3}

Neat!

S

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Re: NaN comparisons - Call For Anecdotes Skip Montanaro <skip@pobox.com> - 2014-07-08 10:24 -0500

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