udprecv.py

import socket

SOCKET_SIZE = 4096

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind(("localhost", 8009))
sock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, SOCKET_SIZE)
while True:
    try:
        msg, host = sock.recvfrom(SOCKET_SIZE)
        # print(msg)
        print("RECV {} byte payload from {}:{} ->\n{}"\
                .format(len(str(msg)), host[0], host[1], msg))
    except KeyboardInterrupt:
        print("")
        break