Hi, I'm currently trying to implement the JXTA standard (http://www.jxta.org) in Python using twisted (because it seems to be the right choice). I've implemented the basic parts that are not network related, that is, not much ;) To make a correct JXTA peer (well designed to be modular and to be able to add services), I have cascade several services (I think they should be services, but I can be wrong, I'm a real beginner with Twisted). For instance: network -> TCP transport layer service -> endpoint service -> some other high level services -> endpoint service -> TCP transport layer (may not be the same as the first one). Is there a sample somewhere that does something like this ? Each time an event is sent to a listener (the TCP transport layer, the endpoint, ...) that acts upon it. I've tried to find some samples over the Internet, but perhaps someone has a pointer to help me ? Matthieu -- French PhD student Website : http://matthieu-brucher.developpez.com/ Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92 LinkedIn : http://www.linkedin.com/in/matthieubrucher