Hello Twisters, As a Twisted newbie, I'm not sure if, what i've coded is the Twisted way to go. In this test, I've created a simple XMLRPC server def main(): # initialize factory factory = server.Site(XMLRPC()) factory.resource.base = factory # initialize server reactor.listenTCP(8000, factory) try: try: reactor.run() except KeyboardInterrupt: print 'CTRL-C received, shutting down server.' except Exception, err: print 'Problem with running server: %s' % err finally: reactor.stop() # The XMLRPC class: class XMLRPC(xmlrpc.XMLRPC): def xmlrpc_test(self, text): d = defer.maybeDeferred(test, text) return d # The test function def test(text): # do something with the text return dbPool.pg.runInteraction(getTestData, text) # The getTestData function def getTestData(cursor, text): # do queries using cursor return result dbPool is a class which sets up dbpools for different databases according to a config file. This setup seems to work, but I'm not sure about the way I'm using the deferreds. Comments welcome :) Grtz, Remi Cool