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gh-119011: Return an empty tuple on type_get_type_params as special case for PyType_Type #119313

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gh-119011: Return an empty tuple on type_get_type_params as special case for PyType_Type #119313

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gh-119011: Return an empty tuple on type_get_type_params as special c…
mdkcore0 May 20, 2024
1a8c6d2
Update Misc/NEWS.d/next/Core and Builtins/2024-05-21-11-51-54.gh-issu…
carljm May 21, 2024
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2024-05-21-11-51-54.gh-issue-119011.Ja5dwc.rst
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@@ -0,0 +1,2 @@
This fixes an issue with ``functools.update_wrapper`` where it was not
returning a tuple for ``__type_params__`` as expected.
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2 changes: 1 addition & 1 deletion Objects/typeobject.c
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Expand Up @@ -1743,7 +1743,7 @@ static PyObject *
type_get_type_params(PyTypeObject *type, void *context)
{
PyObject *params;
if (PyDict_GetItemRef(lookup_tp_dict(type), &_Py_ID(__type_params__), &params) == 0) {
if (type == &PyType_Type || PyDict_GetItemRef(lookup_tp_dict(type), &_Py_ID(__type_params__), &params) == 0) {
return PyTuple_New(0);
}
return params;
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