[Python-Dev] Add a frozendict builtin type (original) (raw)
Antoine Pitrou solipsis at pitrou.net
Tue Feb 28 12:53:27 CET 2012
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On Tue, 28 Feb 2012 12:45:54 +0100 Victor Stinner <victor.stinner at haypocalc.com> wrote:
> I think you need to elaborate on your use cases further, ...
A frozendict can be used as a member of a set or as a key in a dictionary. For example, frozendict is indirectly needed when you want to use an object as a key of a dict, whereas one attribute of this object is a dict.
It isn't. You just have to define hash correctly.
frozendict helps also in threading and multiprocessing.
How so?
Regards
Antoine.
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