PyEval_GetLocals() leaks locals #118934

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PyEval_GetLocals() leaks locals#118934

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3.13bugs and security fixesbugs and security fixes3.14bugs and security fixesbugs and security fixestopic-C-APItype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

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colesbury

opened on May 10, 2024

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Bug report

PyEval_GetLocals() is documented as returning a borrowed reference. It now returns a new reference, which causes callers to leak the local variables:

cpython/Python/ceval.c

Lines 2478 to 2479 in 35c4361

	PyObject *locals = _PyEval_GetFrameLocals();
	return locals;

cc @gaogaotiantian @markshannon

Linked PRs

• gh-118934: Make PyEval_GetLocals return borrowed reference #119769
• gh-118934: Fix PyEval_GetLocals docs (PEP 667) #119932
• [3.13] gh-118934: Fix PyEval_GetLocals docs (PEP 667) (GH-119932) #119934
• [3.13] gh-118934: Make PyEval_GetLocals return borrowed reference (GH-119769) #121869

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3.13bugs and security fixesbugs and security fixes3.14bugs and security fixesbugs and security fixestopic-C-APItype-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

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