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[3.14] gh-141473: Document not calling Popen.wait after Popen.communicate times out. (GH-142101) (#142124)
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gh-141473: Document not calling Popen.wait after Popen.communicate times out. (GH-142101)

Document not calling Popen.wait after Popen.communicate times out.

Closes GH-141473
(cherry picked from commit 3e2c557493)

Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
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5
Doc/library/subprocess.rst
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@ -846,6 +846,11 @@ Instances of the :class:`Popen` class have the following methods:
proc.kill()
outs, errs = proc.communicate()
After a call to :meth:`~Popen.communicate` raises :exc:`TimeoutExpired`, do
not call :meth:`~Popen.wait`. Use an additional :meth:`~Popen.communicate`
call to finish handling pipes and populate the :attr:`~Popen.returncode`
attribute.
.. note::
The data read is buffered in memory, so do not use this method if the data