import socket import signal import sys import datetime import struct def signal_handler(sig, frame): print('\nDone!') sys.exit(0) signal.signal(signal.SIGINT, signal_handler) print('Press Ctrl+C to exit...') ## ip_addr = "127.0.0.1" tcp_port = 5005 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((ip_addr, tcp_port)) order=0 while True: try: message=input("Message to send? ").encode() version=1 order+=1 size=len(message) pkt=struct.pack('!BLL{}s'.format(size),version,size,order,message) sock.send(pkt) except (socket.timeout, socket.error): print('Server error. Done!') sys.exit(0)