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Title: gh-126366: fix thread safety of dict key iterator by kumaraditya303 · Pull Request #132693 · python/cpython · GitHub

Open Graph Title: gh-126366: fix thread safety of dict key iterator by kumaraditya303 · Pull Request #132693 · python/cpython

X Title: gh-126366: fix thread safety of dict key iterator by kumaraditya303 · Pull Request #132693 · python/cpython

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Open Graph Description: Issue: Abort in free-threaded build due to mutation of ChainMap of a Counter in threads #126366

X Description: Issue: Abort in free-threaded build due to mutation of ChainMap of a Counter in threads #126366

Opengraph URL: https://github.com/python/cpython/pull/132693

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