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gh-62534: Document that three-argument type() does not call __prepare__ #154028

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encukou merged 1 commit into from
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gh-62534: Document that three-argument type() does not call __prepare__ #154028

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5 changes: 5 additions & 0 deletions Doc/library/functions.rst
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Expand Up @@ -2179,6 +2179,11 @@ are always available. They are listed here in alphabetical order.
in the same way that keywords in a class
definition (besides *metaclass*) would.

Unlike a :keyword:`class` statement, the three argument form does not
call the metaclass ``__prepare__`` method (see :ref:`prepare`). Use
:func:`types.new_class` to dynamically create a class using the
appropriate metaclass.

See also :ref:`class-customization`.

.. versionchanged:: 3.6
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