bpo-36922: use Py_TPFLAGS_METHOD_DESCRIPTOR in lookup_maybe_method() (GH-13865)
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@ -4647,9 +4647,11 @@ order (MRO) for bases """
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def test_mixing_slot_wrappers(self):
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class X(dict):
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__setattr__ = dict.__setitem__
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__neg__ = dict.copy
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x = X()
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x.y = 42
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self.assertEqual(x["y"], 42)
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self.assertEqual(x, -x)
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def test_slot_shadows_class_variable(self):
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with self.assertRaises(ValueError) as cm:
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@ -0,0 +1 @@
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Slot functions optimize any callable with ``Py_TPFLAGS_METHOD_DESCRIPTOR`` instead of only instances of ``function``.
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@ -1412,7 +1412,7 @@ lookup_maybe_method(PyObject *self, _Py_Identifier *attrid, int *unbound)
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return NULL;
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}
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if (PyFunction_Check(res)) {
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if (PyType_HasFeature(Py_TYPE(res), Py_TPFLAGS_METHOD_DESCRIPTOR)) {
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/* Avoid temporary PyMethodObject */
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*unbound = 1;
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Py_INCREF(res);
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