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[3.14] gh-140530: fix a reference leak in an error path for`raise exc from cause` (GH-140908)#141282

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Merged

picnixz merged 1 commit intopython:3.14frommiss-islington:backport-0c77e7c-3.14

Nov 9, 2025

Merged

[3.14] gh-140530: fix a reference leak in an error path for`raise exc from cause` (GH-140908)#141282

picnixz merged 1 commit intopython:3.14frommiss-islington:backport-0c77e7c-3.14

Nov 9, 2025

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miss-islington commentedNov 9, 2025•
edited by bedevere-appbot
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Fix a reference leak inraise E from T whenT is an exception
subtype for whichT.__new__ does not return an exception instance.
(cherry picked from commit0c77e7c)

Co-authored-by: Bénédikt Tran10796600+picnixz@users.noreply.github.com

Issue:Reference leak when failing to raise from an exception cause #140530

pythongh-140530: fix a reference leak in an error path for `raise exc…

26d4249

… from cause` (pythonGH-140908)Fix a reference leak in `raise E from T` when `T` is an exceptionsubtype for which `T.__new__` does not return an exception instance.(cherry picked from commit0c77e7c)Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>