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[3.14] gh-159739: [typing] Handle generic alias construction errors (GH-159772) - #159929
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JelleZijlstra merged 1 commit intoOct 20, 2026
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…rors (pythonGH-159772) Backport the typevarobject.c fix; Python 3.14 does not decref subargs on the generic-alias substitution error path. (cherry picked from commit 07df106)
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Backport GH-159772 to Python 3.14.