diff -Nurwb -x __pycache__ -x OWbuild -x '*.dll' -x '*.exe' Python-3.3.2-original/Modules/_elementtree.c Python-3.3.2/Modules/_elementtree.c
--- Python-3.3.2-original/Modules/_elementtree.c	2013-09-18 20:54:09.000000000 -0400
+++ Python-3.3.2/Modules/_elementtree.c	2013-10-23 07:33:18.000000000 -0400
@@ -804,9 +804,9 @@
 }
 
 static PyObject*
-element_sizeof(PyObject* _self, PyObject* args)
+element_sizeof(PyObject* myself, PyObject* args)
 {
-    ElementObject *self = (ElementObject*)_self;
+    ElementObject *self = (ElementObject*)myself;
     Py_ssize_t result = sizeof(ElementObject);
     if (self->extra) {
         result += sizeof(ElementObjectExtra);