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GeezerVison is showing github.com — [3.15] gh-156091: Fix crash compiling deeply nested inlined comprehensions (GH-156957) by miss-islington · Pull Request #156992 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Sep 5, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit 14a93f4)

Co-authored-by: Irit Katriel [email protected]

  • Issue: Compiler crash: inlined comprehensions overflow _PyCfgExceptStack, bypassing the u_nfblocks block-nesting limit #156091

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@iritkatriel @miss-islington
pythongh-156091: Fix crash compiling deeply nested inlined comprehens…
c98c990 
…ions (pythonGH-156957)

(cherry picked from commit 14a93f4)

Co-authored-by: Irit Katriel <[email protected]>
@miss-islington
miss-islington requested review from iritkatriel and markshannon as code owners September 5, 2026 16:01
@bedevere-app bedevere-app Bot mentioned this pull request Sep 5, 2026
Compiler crash: inlined comprehensions overflow _PyCfgExceptStack, bypassing the u_nfblocks block-nesting limit #156091
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@bedevere-app bedevere-app Bot added awaiting review type-crash A hard crash of the interpreter, possibly with a core dump labels Sep 5, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Sep 5, 2026
gh-156091: Fix crash compiling deeply nested inlined comprehensions #156957
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iritkatriel
iritkatriel approved these changes Sep 5, 2026
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@bedevere-app bedevere-app Bot added awaiting merge and removed awaiting review labels Sep 5, 2026
@serhiy-storchaka
serhiy-storchaka merged commit 845fb34 into python:3.15 Oct 10, 2026
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@bedevere-app bedevere-app Bot removed the awaiting merge label Oct 10, 2026
@miss-islington
miss-islington deleted the backport-14a93f4-3.15 branch October 10, 2026 10:32
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@iritkatriel iritkatriel iritkatriel approved these changes
@markshannon markshannon Awaiting requested review from markshannon markshannon is a code owner

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

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3 participants

@miss-islington @iritkatriel @serhiy-storchaka
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