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gh-149122: Fix segfault in compiler when certain builtin functions are passed a coroutine as arg by iritkatriel · Pull Request #149138 · python/cpython · GitHub

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gh-149122: Fix segfault in compiler when certain builtin functions are passed a coroutine as arg - #149138

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iritkatriel merged 3 commits into
python:mainfrom
iritkatriel:gh-149122
Apr 29, 2026
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gh-149122: Fix segfault in compiler when certain builtin functions are passed a coroutine as arg#149138
iritkatriel merged 3 commits into
python:mainfrom
iritkatriel:gh-149122

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iritkatriel commented Apr 29, 2026 •
edited by bedevere-app Bot
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Fixes #149122.

Disables the builtin-on-genexpr optimisation when the genexpr is a coroutine.

bedevere-app Bot mentioned this pull request Apr 29, 2026
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iritkatriel added type-crash A hard crash of the interpreter, possibly with a core dump needs backport to 3.14 bugs and security fixes release-blocker labels Apr 29, 2026
iritkatriel requested a review from carljm April 29, 2026 08:45

kumaraditya303 commented Apr 29, 2026

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I think this deserves a bug news entry.

iritkatriel enabled auto-merge (squash) April 29, 2026 13:05
iritkatriel merged commit 16f292e into python:main Apr 29, 2026
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miss-islington-app Bot commented Apr 29, 2026

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Thanks @iritkatriel for the PR 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

bedevere-app Bot commented Apr 29, 2026

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GH-149151 is a backport of this pull request to the 3.14 branch.

bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Apr 29, 2026
iritkatriel added a commit that referenced this pull request Apr 29, 2026
[3.14] gh-149122: Fix segfault in compiler when certain builtin funct…
098880d 
…ions are passed a coroutine as arg (GH-149138) (#149151)

gh-149122: Fix segfault in compiler when certain builtin functions are passed a coroutine as arg (GH-149138)
(cherry picked from commit 16f292e)

Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
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kumaraditya303 kumaraditya303 approved these changes
markshannon Awaiting requested review from markshannon markshannon is a code owner
carljm Awaiting requested review from carljm

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release-blocker type-crash A hard crash of the interpreter, possibly with a core dump

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Segfault with async generator expressions

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