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gh-87390: Fix starred tuple equality and pickling (GH-92337)
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@ -300,6 +300,7 @@ struct _Py_global_strings {
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STRUCT_FOR_ID(n_unnamed_fields)
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STRUCT_FOR_ID(name)
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STRUCT_FOR_ID(newlines)
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STRUCT_FOR_ID(next)
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STRUCT_FOR_ID(obj)
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STRUCT_FOR_ID(offset)
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STRUCT_FOR_ID(onceregistry)
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@ -923,6 +923,7 @@ extern "C" {
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INIT_ID(n_unnamed_fields), \
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INIT_ID(name), \
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INIT_ID(newlines), \
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INIT_ID(next), \
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INIT_ID(obj), \
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INIT_ID(offset), \
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INIT_ID(onceregistry), \
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@ -358,6 +358,8 @@ def test_equality(self):
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self.assertNotEqual(dict[str, int], dict[str, str])
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self.assertNotEqual(list, list[int])
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self.assertNotEqual(list[int], list)
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self.assertNotEqual(list[int], tuple[int])
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self.assertNotEqual((*tuple[int],)[0], tuple[int])
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def test_isinstance(self):
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self.assertTrue(isinstance([], list))
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@ -394,6 +396,7 @@ def test_pickle(self):
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self.assertEqual(loaded.__origin__, alias.__origin__)
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self.assertEqual(loaded.__args__, alias.__args__)
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self.assertEqual(loaded.__parameters__, alias.__parameters__)
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self.assertEqual(type(loaded), type(alias))
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def test_copy(self):
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class X(list):
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@ -567,6 +567,9 @@ ga_richcompare(PyObject *a, PyObject *b, int op)
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gaobject *aa = (gaobject *)a;
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gaobject *bb = (gaobject *)b;
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if (aa->starred != bb->starred) {
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Py_RETURN_FALSE;
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}
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int eq = PyObject_RichCompareBool(aa->origin, bb->origin, Py_EQ);
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if (eq < 0) {
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return NULL;
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@ -604,6 +607,16 @@ static PyObject *
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ga_reduce(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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gaobject *alias = (gaobject *)self;
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if (alias->starred) {
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PyObject *tmp = Py_GenericAlias(alias->origin, alias->args);
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if (tmp != NULL) {
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Py_SETREF(tmp, PyObject_GetIter(tmp));
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}
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if (tmp == NULL) {
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return NULL;
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}
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return Py_BuildValue("N(N)", _PyEval_GetBuiltin(&_Py_ID(next)), tmp);
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}
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return Py_BuildValue("O(OO)", Py_TYPE(alias),
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alias->origin, alias->args);
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}
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@ -775,6 +788,18 @@ ga_iter_clear(PyObject *self) {
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return 0;
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}
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static PyObject *
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ga_iter_reduce(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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gaiterobject *gi = (gaiterobject *)self;
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return Py_BuildValue("N(O)", _PyEval_GetBuiltin(&_Py_ID(iter)), gi->obj);
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}
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static PyMethodDef ga_iter_methods[] = {
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{"__reduce__", ga_iter_reduce, METH_NOARGS},
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{0}
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};
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// gh-91632: _Py_GenericAliasIterType is exported to be cleared
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// in _PyTypes_FiniTypes.
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PyTypeObject _Py_GenericAliasIterType = {
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@ -784,6 +809,7 @@ PyTypeObject _Py_GenericAliasIterType = {
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.tp_iter = PyObject_SelfIter,
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.tp_iternext = (iternextfunc)ga_iternext,
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.tp_traverse = (traverseproc)ga_iter_traverse,
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.tp_methods = ga_iter_methods,
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.tp_dealloc = (destructor)ga_iter_dealloc,
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.tp_clear = (inquiry)ga_iter_clear,
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.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
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