Add support for None in values (unknown size at the moment).

git-svn-id: https://svn.erp5.org/repos/neo/trunk@2482 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/client/mq.py

@@ -110,6 +110,9 @@ def sizeof(o):
     """This function returns the estimated size of an object."""
     if isinstance(o, tuple):
         return sum((sizeof(s) for s in o))
+    elif o is None:
+        # XXX: unknown size (arch pointer ?)
+        return 0
     else:
         return len(o)+16