Minor readability improvement for argument handling in itertools.repe…

…at() (GH-17101)

Modules/itertoolsmodule.c

@@ -4256,17 +4256,17 @@ repeat_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 {
     repeatobject *ro;
     PyObject *element;
-    Py_ssize_t cnt = -1, n_kwds = 0;
+    Py_ssize_t cnt = -1, n_args;
     static char *kwargs[] = {"object", "times", NULL};
 
+    n_args = PyTuple_GET_SIZE(args);
+    if (kwds != NULL)
+        n_args += PyDict_GET_SIZE(kwds);
     if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|n:repeat", kwargs,
                                      &element, &cnt))
         return NULL;
-
-    if (kwds != NULL)
-        n_kwds = PyDict_GET_SIZE(kwds);
     /* Does user supply times argument? */
-    if ((PyTuple_Size(args) + n_kwds == 2) && cnt < 0)
+    if (n_args == 2 && cnt < 0)
         cnt = 0;
 
     ro = (repeatobject *)type->tp_alloc(type, 0);