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bpo-15243: Document __prepare__ as classmethod (GH-17124) 

(cherry picked from commit 7de617455e)

Co-authored-by: alclarks <57201106+alclarks@users.noreply.github.com>
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Miss Islington (bot) 2020-01-25 11:04:16 -08:00 committed by Berker Peksag
parent 079dfe082a
commit 321491a536
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Doc/reference/datamodel.rst
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@ -1945,7 +1945,8 @@ Preparing the class namespace
Once the appropriate metaclass has been identified, then the class namespace
is prepared. If the metaclass has a ``__prepare__`` attribute, it is called
as ``namespace = metaclass.__prepare__(name, bases, **kwds)`` (where the
additional keyword arguments, if any, come from the class definition).
additional keyword arguments, if any, come from the class definition). The
``__prepare__`` method should be implemented as a :func:`classmethod`.
If the metaclass has no ``__prepare__`` attribute, then the class namespace
is initialised as an empty ordered mapping.