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gh-119287: clarify doc on BaseExceptionGroup.derive and link to it from contextlib.suppress (#119657)

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Irit Katriel 2024-06-05 12:56:01 +01:00 committed by GitHub
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2 changed files with 5 additions and 2 deletions
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Doc/library/contextlib.rst
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@ -314,7 +314,9 @@ Functions and classes provided:
If the code within the :keyword:`!with` block raises a
:exc:`BaseExceptionGroup`, suppressed exceptions are removed from the
group. If any exceptions in the group are not suppressed, a group containing them is re-raised.
group. Any exceptions of the group which are not suppressed are re-raised in
a new group which is created using the original group's :meth:`~BaseExceptionGroup.derive`
method.
.. versionadded:: 3.4

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Doc/library/exceptions.rst
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@ -989,7 +989,8 @@ their subgroups based on the types of the contained exceptions.
Returns an exception group with the same :attr:`message`, but which
wraps the exceptions in ``excs``.
This method is used by :meth:`subgroup` and :meth:`split`. A
This method is used by :meth:`subgroup` and :meth:`split`, which
are used in various contexts to break up an exception group. A
subclass needs to override it in order to make :meth:`subgroup`
and :meth:`split` return instances of the subclass rather
than :exc:`ExceptionGroup`.