Python udp broadcast client server example

client.py

import socket

client = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # UDP
client.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
client.bind(("", 37020))
while True:
    data, addr = sock.recvfrom(1024)
    print("received message: %s"%data)

server.py

import socket
import time

server = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
server.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
# Set a timeout so the socket does not block
# indefinitely when trying to receive data.
server.settimeout(0.2)
server.bind(("", 44444))
message = b"your very important message"
while True:
    server.sendto(message, ('<broadcast>', 37020))
    print("message sent!")
    time.sleep(1)

hi,

There is a small issue in client.py.

1. line 7: the sock should be client.
2. line 8: It's better to decode data before printing.