sendhex.py

#!/usr/bin/env python

import sys
import socket

hex = ""
for line in sys.stdin.readlines():
    first_space = line.index(' ')
    if first_space > 2:
        line = line[first_space:]
    hex += line.replace(' ', '').strip()

data = hex.decode('hex')

host, port = sys.argv[1].split(':')
port = int(port)

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(data, (host, port))