--- a/xmlrpc_handler.py		2002-09-22 08:13:22.000000000 +0900
+++ b//xmlrpc_handler.py	2011-04-18 14:42:01.397554897 +0900
@@ -56,7 +56,7 @@
 
     def call (self, method, params):
         # override this method to implement RPC methods
-        raise "NotYetImplemented"
+        raise NotImplementedError
 
 class collector: