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GeezerVison is showing github.com — [3.14] gh-150750: Fix a race condition in `deque.index` with free-threading (GH-150779) by miss-islington · Pull Request #150921 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Jun 4, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit d83d50b)

Co-authored-by: sobolevn [email protected]

  • Issue: Data race between deque.index and deque mutators on Py_SIZE with free-threading #150750

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@sobolevn @miss-islington
pythongh-150750: Fix a race condition in deque.index with free-thre…
d2756d4 
…ading (pythonGH-150779)

(cherry picked from commit d83d50b)

Co-authored-by: sobolevn <[email protected]>
@miss-islington
miss-islington requested a review from rhettinger as a code owner June 4, 2026 13:31
@bedevere-app bedevere-app Bot added the awaiting review label Jun 4, 2026
This was referenced Jun 4, 2026
Data race between deque.index and deque mutators on Py_SIZE with free-threading #150750
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gh-150750: Fix a race condition in deque.index with free-threading #150779
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@sobolevn
sobolevn enabled auto-merge (squash) June 4, 2026 13:43
@sobolevn
sobolevn merged commit 2d3d11c into python:3.14 Jun 4, 2026
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@bedevere-app bedevere-app Bot removed the awaiting review label Jun 4, 2026
@miss-islington
miss-islington deleted the backport-d83d50b-3.14 branch June 4, 2026 13:57
@samuelcolvin samuelcolvin mentioned this pull request Aug 31, 2026
deque.index result changed in 3.14.7 when a bound's __index__ mutates the deque #156743
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@rhettinger rhettinger Awaiting requested review from rhettinger rhettinger is a code owner

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2 participants

@miss-islington @sobolevn
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