title: Python: asynchronous tcp socketserver
body: <p>I'm looking <a href="http://docs.python.org/library/socketserver.html" rel="nofollow noreferrer">http://docs.python.org/library/socketserver.html</a> to try and handle asynchronous requests with the socketserver in python. At the very bottom there is an example, but it doesn't make sense. It says you use port 0 which assigns an arbitrary unused port. But how do you know what port to use for the client if they are not in the same program? I do not quite  understand how to make this useful.</p>