[Python-Dev] PEP: Ordered Class Definition Namespace (original) (raw)

Ethan Furman ethan at stoneleaf.us
Tue Jun 7 14:01:43 EDT 2016

On 06/07/2016 10:51 AM, Eric Snow wrote:

My intention was to land the patch soon, having gone through code review during PyCon. However, Nick pointed out to me the benefit of having a concrete point of reference for the change, as well as making sure it isn't a problem for other implementations. So in that spirit, here's a PEP for the change. Feedback is welcome, particularly from from other implementors.

+1

Specification =============

* types for which `_prepare_() returned something other than_ _OrderedDict(or a subclass) have their_definitionorder__ _set to None``

I assume this check happens in type.new? If a non-OrderedDict is used as the namespace, but a definition_order key and value are supplied, is it used or still set to None?

-- Ethan

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