Multi-client server

[Saga]

I'm trying to change this code to be multi-user.. I read a little bit about using select function instead of using threads but I can't understand how to use it in my code.

Here's my code so far:

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server_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)    server_sock.bind((SERVER_IP, SERVER_PORT))    server_sock.listen(1)    client_sock, client_address = server_sock.accept()    client_sock.sendall("Welcome to the server!")    answer = ""      while (True):        msg = client_sock.recv(1024)        if (msg == "Hello"):            answer = "Hello"        elif (msg == "QUIT"):            client_sock.sendall("Bye")            break        else:            answer = "Error!"        client_sock.sendall(answer)      client_sock.close()    server_sock.close()