gh-132657: optimize PySet_Contains for frozensets
#141183
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Carreau
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Nov 7, 2025
eendebakpt
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Looks good to me. Also see #132290, which also removes locks for set arguments to PySet_Contains.
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Do you want to include a variation of my proposed test in testcapi/set.c ? With the proper Null checks and Pydecref of course. This will avoid regressions. |
Carreau
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Would you like to propose a PR for that? That could be backported as well but since this PR is perf optimization it won't be backported. |
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As discussed in pythongh-141183, the test suite did not test that PySet_Contains does not convert unhashable key into a frozenset. This commit adds a regression test for this behavior, to ensure that any behavior change is caught by the test suite.
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As discussed in pythongh-141183, the test suite did not test that PySet_Contains does not convert unhashable key into a frozenset. This commit adds a regression test for this behavior, to ensure that any behavior change is caught by the test suite.
Carreau
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Nov 11, 2025
As discussed in pythongh-141183, the test suite did not test that PySet_Contains does not convert unhashable key into a frozenset. This commit adds a regression test for this behavior, to ensure that any behavior change is caught by the test suite.
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Done as #141411 |
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As discussed in pythongh-141183, the test suite did not test that PySet_Contains does not convert unhashable key into a frozenset. This commit adds a regression test for this behavior, to ensure that any behavior change is caught by the test suite.
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Avoid taking critical section if the object is an exact frozenset.