Index: Lib/SimpleXMLRPCServer.py
===================================================================
--- Lib/SimpleXMLRPCServer.py	(revision 62520)
+++ Lib/SimpleXMLRPCServer.py	(working copy)
@@ -163,7 +163,7 @@
     reason to instantiate this class directly.
     """
 
-    def __init__(self, allow_none, encoding):
+    def __init__(self, allow_none=False, encoding=None):
         self.funcs = {}
         self.instance = None
         self.allow_none = allow_none