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gh-142750: Normalize ParamSpec __bound__ when bound is None #142751

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gh-142750: Normalize ParamSpec __bound__ when bound is None #142751

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1a32545
Normalize ParamSpec __bound__ when bound is None
hyongtao-code Dec 15, 2025
5afc576
📜🤖 Added by blurb_it.
blurb-it[bot] Dec 16, 2025
0a427ec
Add unit test
hyongtao-code Dec 16, 2025
d4cde94
Post fix
hyongtao-code Dec 16, 2025
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3 changes: 3 additions & 0 deletions Objects/typevarobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1337,6 +1337,9 @@ paramspec_new_impl(PyTypeObject *type, PyObject *name, PyObject *bound,
PyErr_SetString(PyExc_ValueError, "Variance cannot be specified with infer_variance.");
return NULL;
}
if (Py_IsNone(bound)) {
bound = NULL;
}
if (bound != NULL) {
bound = type_check(bound, "Bound must be a type.");
if (bound == NULL) {
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