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[3.15] gh-150374: Fix double release of import lock in lazy import reification (GH-150376) #150378

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Merged
kumaraditya303 merged 1 commit into from
May 25, 2026
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[3.15] gh-150374: Fix double release of import lock in lazy import reification (GH-150376) #150378

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gh-150374: Fix double release of import lock in lazy import reificati… 
…on (GH-150376)

(cherry picked from commit 5498eba)

Co-authored-by: pengyu lee <lipengyu@kylinos.cn>
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@lpyu001 @miss-islington
lpyu001 authored and miss-islington committed May 25, 2026
commit df0ee76be2e27300e97f9937d1a87d3271933fb4
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Core_and_Builtins/2026-05-25-16-00-22.gh-issue-150374.Emu6d8.rst
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@@ -0,0 +1 @@
Fix double release of the import lock on lazy import reification errors.
1 change: 0 additions & 1 deletion Python/import.c
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Expand Up @@ -3934,7 +3934,6 @@ _PyImport_LoadLazyImportTstate(PyThreadState *tstate, PyObject *lazy_import)
return NULL;
}
else if (PySet_Add(importing, lazy_import) < 0) {
_PyImport_ReleaseLock(interp);
goto error;
}

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