--- xmlrpclib.py	2010-11-15 12:03:43.401600000 +0100
+++ Lib\xmlrpclib.py	2010-11-15 13:02:03.261000000 +0100
@@ -701,7 +701,7 @@
     def dump_nil (self, value, write):
         if not self.allow_none:
             raise TypeError, "cannot marshal None unless allow_none is enabled"
-        write("<value><nil/></value>")
+        write("<value><ex:nil/></value>")
     dispatch[NoneType] = dump_nil
 
     def dump_int(self, value, write):
@@ -863,7 +863,11 @@
         try:
             f = self.dispatch[tag]
         except KeyError:
-            pass # unknown tag ?
+            if ':' in tag: #Ahh... xml namespace!
+                if tag.split(':')[1] == 'nil':
+                    #Support for nil (a.k.a. None) is in EXTENSIONS to XMLRPC, so can be in separate namespace
+                    f = self.dispatch['nil']
         else:
             return f(self, join(self._data, ""))
 
@@ -1143,7 +1146,7 @@
             methodname = methodname.encode(encoding)
         data = (
             xmlheader,
-            "<methodCall>\n"
+            "<methodCall xmlns:ex='http://ws.apache.org/xmlrpc/namespaces/extensions'>\n"
             "<methodName>", methodname, "</methodName>\n",
             data,
             "</methodCall>\n"
@@ -1152,7 +1155,7 @@
         # a method response, or a fault structure
         data = (
             xmlheader,
-            "<methodResponse>\n",
+            "<methodResponse xmlns:ex='http://ws.apache.org/xmlrpc/namespaces/extensions'>\n",
             data,
             "</methodResponse>\n"
             )