Thank you for the reply. When I said "TCP/IP" protocol, what I meant was this: http://en.wikipedia.org/wiki/Internet_Protocol_Suite.
The reason the server is in a separate process is because it needs to continually be listening for network packets, which would disrupt the GUI. In any case, that part is working fine - I actually have everything you mentioned implemented already, in mostly the way you described it, except for the very last part where the GUI label gets updated. I tried creating a "listener" thread that waits for a message to appear on its pipe from the server process, and then updates the label using a control variable. Again, nothing happens. The program doesn't hang, or throw an exception, but the label isn't being updated either - I presume because I'm trying to set the control variable in a thread separate from the GUI. I'll post some of the code so you can see what I'm talking about. -- http://mail.python.org/mailman/listinfo/python-list
