send.py

#!/usr/bin/env python3
import socket

UDP_IP = "127.0.0.1"
UDP_PORT = 3838
# MESSAGE = "\nter 0.78\nmaster 0.4\nmaster 0.5"
MESSAGE = "This is a test....\n\n"

print("UDP target IP:", UDP_IP)
print("UDP target port:", UDP_PORT)
print("message:", MESSAGE)

sock = socket.socket(socket.AF_INET, # Internet
                     socket.SOCK_DGRAM) # UDP
sock.sendto(bytes(MESSAGE, 'utf-8'), (UDP_IP, UDP_PORT))