--- Objects/exceptions.c.orig	2006-09-09 09:18:44.000000000 +0200
+++ Objects/exceptions.c	2007-04-10 21:25:09.000000000 +0200
@@ -33,6 +33,10 @@
     PyBaseExceptionObject *self;

     self = (PyBaseExceptionObject *)type->tp_alloc(type, 0);
+    if (self == NULL) {
+        return NULL;
+    }
+
     /* the dict is created on the fly in PyObject_GenericSetAttr */
     self->message = self->dict = NULL;

--- Objects/object.c.orig	2006-08-14 12:55:19.000000000 +0200
+++ Objects/object.c	2007-04-10 21:32:06.000000000 +0200
@@ -1284,7 +1284,9 @@

 		/* Look in tp_dict of types in MRO */
 		mro = tp->tp_mro;
-		assert(mro != NULL);
+		if (mro == NULL) {
+			goto done;
+		}
 		assert(PyTuple_Check(mro));
 		n = PyTuple_GET_SIZE(mro);
 		for (i = 0; i < n; i++) {
--- Objects/longobject.c.orig	2006-08-12 19:03:09.000000000 +0200
+++ Objects/longobject.c	2007-04-10 21:34:50.000000000 +0200
@@ -2511,6 +2511,11 @@

 	if (long_divrem(v, w, &div, &mod) < 0)
 		return -1;
+	if (div == NULL || mod == NULL) {
+		Py_XDECREF(div);
+		Py_XDECREF(mod);
+		return -1;
+	}
 	if ((mod->ob_size < 0 && w->ob_size > 0) ||
 	    (mod->ob_size > 0 && w->ob_size < 0)) {
 		PyLongObject *temp;