A simple echo server using gevent.

echo_server.py

import gevent.server


def handle(socket, addr):
    print addr
    while True:
        try:
            content = socket.recv(1024)
            if len(content) == 0:
                break
        except Exception, e:
            print e
            break

        socket.send(content)

    print addr, 'has closed'

if __name__ == '__main__':
    server = gevent.server.StreamServer(('127.0.0.1', 30002), handle)
    server.serve_forever()