[Python-Dev] PEP 468

Ethan Furman ethan at stoneleaf.us
Mon Jun 13 12:34:07 EDT 2016

On 06/10/2016 02:13 PM, Franklin? Lee wrote:

> P.S.: If anyone is missing the relevance, Raymond Hettinger's compact
> dicts are inherently ordered until a delitem happens.[1] That could be
> "good enough" for many purposes, including kwargs and class definition.

It would be great for kwargs, but not for class definition: del's can 
happen there, so we need PEP 520 with OrderedDict so the definition 
order is not lost when an item is deleted during class creation.


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