compliment to sock.py

serv.py

from socket import socket
from threading import Thread

kDefault_port = 18056

started_extra = 0

threads = []

server_socket = socket()

server_socket.bind(("127.0.0.1", kDefault_port))
server_socket.listen()

def wait_accept(level):
    global started_extra

    if not started_extra:
        started_extra += 1
        thread = Thread(target=wait_accept, args=(level+1,))
        threads.append(thread)
        thread.start()

    (connection, (address, _port)) = server_socket.accept()
    started_extra -= 1

    data = connection.recv(128).decode('utf-8')
    if not data.startswith('HELO DRAWCLIENT'):
        print("WARN Invalid handshake signature from client (was " + data + "), terminating connection")
        connection.close()
        return
    print("INFO Accepted connection from " + str(address) + ", client version " + data[15:])
    connection.send(b'WELCOME')

    if not started_extra:
        started_extra += 1
        thread = Thread(target=wait_accept, args=(level+1,))
        threads.append(thread)
        thread.start()

wait_accept(0)

for thread in threads:
    thread.join()

assigns a specific number to each connection?

need to restart every so often to prevent an error