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[3.11] gh-108520: Fix bad fork detection in nested multiprocessing use case (GH-108568) - #108692
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… case (pythonGH-108568) pythongh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the `is_fork_ctx` attribute would be left missing after the first deserialization. --------- (cherry picked from commit add8d45) Co-authored-by: albanD <desmaison.alban@gmail.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Antoine Pitrou <pitrou@free.fr>
This was referenced Aug 30, 2023
Nested multiprocessing leads to AttributeError: is_fork_ctx with forkserver or spawn methods
#108520
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gh-107275 introduced a regression where a SemLock would fail being passed along nested child processes, as the is_fork_ctx attribute would be left missing after the first deserialization.
(cherry picked from commit add8d45)
Co-authored-by: albanD desmaison.alban@gmail.com
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Antoine Pitrou pitrou@free.fr