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[3.7] bpo-23722: Fix docs for future __classcell__ changes. (GH-6999) #7000

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Merged
serhiy-storchaka merged 1 commit into from
May 20, 2018
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[3.7] bpo-23722: Fix docs for future __classcell__ changes. (GH-6999) #7000

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2 changes: 1 addition & 1 deletion Doc/reference/datamodel.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1968,7 +1968,7 @@ current call is identified based on the first argument passed to the method.
be propagated up to the ``type.__new__`` call in order for the class to be
initialised correctly.
Failing to do so will result in a :exc:`DeprecationWarning` in Python 3.6,
and a :exc:`RuntimeWarning` in the future.
and a :exc:`RuntimeError` in Python 3.8.

When using the default metaclass :class:`type`, or any metaclass that ultimately
calls ``type.__new__``, the following additional customisation steps are
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3 changes: 2 additions & 1 deletion Doc/whatsnew/3.6.rst
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Expand Up @@ -2261,7 +2261,8 @@ Changes in the Python API
direct references from methods to the implicit ``__class__`` closure
variable, the implicit ``__classcell__`` namespace entry must now be passed
up to ``type.__new__`` for initialisation. Failing to do so will result in
a :exc:`DeprecationWarning` in 3.6 and a :exc:`RuntimeWarning` in the future.
a :exc:`DeprecationWarning` in Python 3.6 and a :exc:`RuntimeError` in
Python 3.8.

Changes in the C API
--------------------
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