Skip> Will I need to make changes to Fredrik Lundh's XML-RPC code to Skip> make this work? Amos> I don't know much about this code, but I doubt it is causing any Amos> concurrency issues or otherwise for you. I guess what I meant to say is will I need to modify the I/O that XML-RPC does to take advantage of Medusa's multi-threading I/O? Alternatively, will not making a change reduce or eliminate the multi-threading? Fredrik's xmlrpclib module uses vanilla httplib to communicate with the server. Does loading asnycore/asynchat do something to fiddle with the I/O in standard packages or do you have to explicitly modify them to use it? Thx, Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip@mojam.com | Musi-Cal: http://www.musi-cal.com/ 518-372-5583