Dear all, Happy christmas! I am trying to get the hang of Twisted and while the documentation is pretty clear I cannot figure out some basic things. I tried to build a little project to practise. I would love some hints, and I am not afraid to read. Basically I want to write a simple server (Public Broker) which keeps a list of all connected clients. When one client sends a message to the server, I want the server to relay that message to other specific clients, but only those (yes basically an IM server). So let's say I have a server and three clients: server: Hello, I am here! client #1: Yep, me too can I connect, I'm a girl? server: Sure, I'll add you to my clients list! client #2: Can I go too, I'm a guy? server: Yep, you are client number two on my list... client #3: Me too, me too, I am a guy! server: Fine, but now let's do some stuff... client #2: Server, can you please tell all clients that are girls that I'd like to see em after this session? server: Let's find out who are female clients in my list and send them the message. Consider it done! client #1: Thanks for the message, I'll see if I have time... In the end client #2 would date client #1...