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[3.10] bpo-28516: document contextlib.ExitStack.__enter__ behavior (GH-31636) (GH-32171)

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The enter_context is updated with following information: 'The :meth:`__enter__` method
      returns the ExitStack instance, and performs no additional operations.'

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
(cherry picked from commit 86384cf83f)

Co-authored-by: vidhya <96202776+Vidhyavinu@users.noreply.github.com>
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Jelle Zijlstra 2022-03-28 19:39:55 -07:00 • committed by GitHub
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Doc/library/contextlib.rst
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@ -485,6 +485,9 @@ Functions and classes provided:
# the with statement, even if attempts to open files later
# in the list raise an exception
The :meth:`__enter__` method returns the :class:`ExitStack` instance, and
performs no additional operations.
Each instance maintains a stack of registered callbacks that are called in
reverse order when the instance is closed (either explicitly or implicitly
at the end of a :keyword:`with` statement). Note that callbacks are *not*