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Thu Mar 25 13:10:27 CET 2010 · https://mail.python.org/pipermail/python-dev/2010-March/098878.html

Mark Dickinson wrote:
> +0.2 from me.  I could happily live with this change;  but could also
> equally live with the existing weirdness.
> 
> It's still a little odd for an immutable type to care about object
> identity, but I guess oddness comes with the floating-point territory.
>  :)

The trick for me came in thinking of NaN as a set of values rather than
a single value - at that point, the different id values just reflect the
multitude of members of that set.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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[Python-Dev] Why is nan != nan?