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gh-154275: Do not crash on deeply nested __parameters__ in GenericAlias#154277

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sobolevn merged 1 commit into
python:mainfrom
sobolevn:issue-154275
Jul 20, 2026
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gh-154275: Do not crash on deeply nested __parameters__ in GenericAlias#154277
sobolevn merged 1 commit into
python:mainfrom
sobolevn:issue-154275

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@sobolevn

@sobolevn sobolevn commented Jul 20, 2026 •
edited by bedevere-app Bot
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@bedevere-app bedevere-app Bot mentioned this pull request Jul 20, 2026
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@sobolevn sobolevn added needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Jul 20, 2026
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sobolevn merged commit 1034e07 into python:main Jul 20, 2026
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@miss-islington-app

miss-islington-app Bot commented Jul 20, 2026

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Thanks @sobolevn for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14, 3.15.
🐍🍒⛏🤖

@miss-islington-app

miss-islington-app Bot commented Jul 20, 2026

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Sorry, @sobolevn, I could not cleanly backport this to 3.14 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 1034e07b7d55642c3a46252e6b0a631c2df588d2 3.14

@bedevere-app

bedevere-app Bot commented Jul 20, 2026

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GH-154306 is a backport of this pull request to the 3.15 branch.

@bedevere-app bedevere-app Bot removed the needs backport to 3.15 pre-release feature fixes, bugs and security fixes label Jul 20, 2026
@miss-islington-app

miss-islington-app Bot commented Jul 20, 2026

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Sorry, @sobolevn, I could not cleanly backport this to 3.13 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker 1034e07b7d55642c3a46252e6b0a631c2df588d2 3.13

sobolevn added a commit that referenced this pull request Jul 20, 2026
@miss-islington @sobolevn
[3.15] gh-154275: Do not crash on deeply nested __parameters__ in `…
d1494f0 
…GenericAlias` (GH-154277) (#154306)

gh-154275: Do not crash on deeply nested `__parameters__` in `GenericAlias` (GH-154277)
(cherry picked from commit 1034e07)

Co-authored-by: sobolevn <mail@sobolevn.me>
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@JelleZijlstra JelleZijlstra JelleZijlstra approved these changes
@AlexWaygood AlexWaygood Awaiting requested review from AlexWaygood AlexWaygood is a code owner

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