https://github.com/python/cpython/commit/7211a34fe1d9704935342af8c9b46725629f2d97
commit: 7211a34fe1d9704935342af8c9b46725629f2d97
branch: main
author: Kumar Aditya <[email protected]>
committer: kumaraditya303 <[email protected]>
date: 2025-11-11T20:02:32+05:30
summary:
gh-132657: optimize `PySet_Contains` for `frozenset` (#141183)
files:
M Objects/setobject.c
diff --git a/Objects/setobject.c b/Objects/setobject.c
index 213bd821d8a1b9..2401176576eb62 100644
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -2747,7 +2747,9 @@ PySet_Contains(PyObject *anyset, PyObject *key)
PyErr_BadInternalCall();
return -1;
}
-
+ if (PyFrozenSet_CheckExact(anyset)) {
+ return set_contains_key((PySetObject *)anyset, key);
+ }
int rv;
Py_BEGIN_CRITICAL_SECTION(anyset);
rv = set_contains_key((PySetObject *)anyset, key);
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