next() uses FASTCALL
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index b269937..9487a53 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1303,13 +1303,19 @@
/* AC: cannot convert yet, as needs PEP 457 group support in inspect */
static PyObject *
-builtin_next(PyObject *self, PyObject *args)
+builtin_next(PyObject *self, PyObject **args, Py_ssize_t nargs,
+ PyObject *kwnames)
{
PyObject *it, *res;
PyObject *def = NULL;
- if (!PyArg_UnpackTuple(args, "next", 1, 2, &it, &def))
+ if (!_PyArg_UnpackStack(args, nargs, "next", 1, 2, &it, &def))
return NULL;
+
+ if (!_PyArg_NoStackKeywords("next", kwnames)) {
+ return NULL;
+ }
+
if (!PyIter_Check(it)) {
PyErr_Format(PyExc_TypeError,
"'%.200s' object is not an iterator",
@@ -2641,7 +2647,7 @@
BUILTIN_LOCALS_METHODDEF
{"max", (PyCFunction)builtin_max, METH_VARARGS | METH_KEYWORDS, max_doc},
{"min", (PyCFunction)builtin_min, METH_VARARGS | METH_KEYWORDS, min_doc},
- {"next", (PyCFunction)builtin_next, METH_VARARGS, next_doc},
+ {"next", (PyCFunction)builtin_next, METH_FASTCALL, next_doc},
BUILTIN_OCT_METHODDEF
BUILTIN_ORD_METHODDEF
BUILTIN_POW_METHODDEF