From 9812af8e727ee38f6526d377d84fb7f4507e23bc Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 8 Jul 2013 22:25:48 +0200
Subject: Issue #18408: Fix PyType_Ready() and type.__bases__ setter to handle
 PyWeakref_NewRef() failure (ex: MemoryError).

---
 Objects/typeobject.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index a351667..5565b20 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -4329,6 +4329,8 @@ add_subclass(PyTypeObject *base, PyTypeObject *type)
     }
     assert(PyList_Check(list));
     newobj = PyWeakref_NewRef((PyObject *)type, NULL);
+    if (newobj == NULL)
+        return -1;
     i = PyList_GET_SIZE(list);
     while (--i >= 0) {
         ref = PyList_GET_ITEM(list, i);
-- 
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