Learning Python Network Programming

A multithreaded echo server

A benefit of the multithreading approach is that the OS handles the thread switches for us, which means we can continue to write our program in a procedural style. Hence we only need to make small adjustments to our server program to make it multithreaded, and thus, capable of handling multiple clients simultaneously.

Create a new file called 1.3-echo_server-multi.py and add the following code to it:

import threading import tincanchat HOST = tincanchat.HOST PORT = tincanchat.PORT def handle_client(sock, addr): """ Receive one message and echo it back to client, then close socket """ try: msg = tincanchat.recv_msg(sock) # blocks until received # complete message msg = '{}: {}'.format(addr, msg) print(msg) tincanchat.send_msg(sock, ...