Fixed a bug found by Marcin Kowalczyk

'Applying PyMethod_Type to 3 arguments crashes Python 3'

diff --git a/Objects/classobject.c b/Objects/classobject.c
index 5362fbcd6ffea3f5d03ba1c1a21aaded633c71fb..5500ed51da639cf89799bdf47f7ffbe854eb01ee 100644 (file)
--- a/Objects/classobject.c
+++ b/Objects/classobject.c
@@ -141,7 +141,7 @@ method_new(PyTypeObject* type, PyObject* args, PyObject *kw)
 
        if (!_PyArg_NoKeywords("instancemethod", kw))
                return NULL;
-       if (!PyArg_UnpackTuple(args, "method", 2, 3,
+       if (!PyArg_UnpackTuple(args, "method", 2, 2,
                              &func, &self))
                return NULL;
        if (!PyCallable_Check(func)) {