A p2p chat made with Python
All you need to do is execute python server.py on command line (assuming your python is on PATH) and connect as many clients you want with python client.py.
On the client, choose your username. After that, if you're going to wait someone to connect with you type w. Else, if you want to connect to someone, type c. If you chose to connect, now you need to select the user you want to connect typing his id given by the online users table.