serve2.py

#!/usr/bin/env python3
import socket
import time

UDP_HOST = '0.0.0.0'
UDP_PORT = 3838

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.bind((UDP_HOST, UDP_PORT))

while True:
    data, addr = sock.recvfrom(1024)
    print('Received: ', data)
    time.sleep(0.05)