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[3.14] gh-141473: Fix subprocess.Popen.communicate to send input to stdin upon a subsequent post-timeout call (GH-141477)#142059

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gpshead merged 1 commit intopython:3.14from
miss-islington:backport-526d7a8-3.14
Nov 29, 2025
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[3.14] gh-141473: Fix subprocess.Popen.communicate to send input to stdin upon a subsequent post-timeout call (GH-141477)#142059
gpshead merged 1 commit intopython:3.14from
miss-islington:backport-526d7a8-3.14

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@miss-islington miss-islington commented Nov 29, 2025


(cherry picked from commit 526d7a8)

Co-authored-by: Artur Jamro [email protected]
Co-authored-by: Gregory P. Smith [email protected]


📚 Documentation preview 📚: https://cpython-previews--142059.org.readthedocs.build/

…din upon a subsequent post-timeout call (pythonGH-141477)

* pythongh-141473: Fix subprocess.Popen.communicate to send input to stdin
* Docs: Clarify that `input` is one time only on `communicate()`
* NEWS entry
* Add a regression test.

---------
(cherry picked from commit 526d7a8)

Co-authored-by: Artur Jamro <[email protected]>
Co-authored-by: Gregory P. Smith <[email protected]>
@gpshead gpshead merged commit 4760894 into python:3.14 Nov 29, 2025
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@miss-islington miss-islington deleted the backport-526d7a8-3.14 branch January 2, 2026 17:45
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3 participants