Completely get rid of PyClass and PyInstance.
(classobject.[ch] aren't empty yet because they also define PyMethod.)
This breaks lots of stuff, notably cPickle. But it's a step in the right
direction. I'll clean it up later.
(Also a few unrelated changes, e.g. T_NONE to define a "struct member"
that is always None, and simplification of __hash__ -- these are unfinished.)
diff --git a/Modules/arraymodule.c b/Modules/arraymodule.c
index b739cc8..e44b8e1 100644
--- a/Modules/arraymodule.c
+++ b/Modules/arraymodule.c
@@ -2112,7 +2112,8 @@
 {
 	PyObject *m;
 
-	Arraytype.ob_type = &PyType_Type;
+	if (PyType_Ready(&Arraytype) < 0)
+            return;
 	PyArrayIter_Type.ob_type = &PyType_Type;
 	m = Py_InitModule3("array", a_methods, module_doc);
 	if (m == NULL)