Tiny Python Pubnub UDP Server

Tiny Python Pubnub UDP Server

#!/usr/bin/python2
# http://wiki.python.org/moin/UdpCommunication

import socket
import re
from Pubnub import Pubnub

## Initiate Class
pubnub = Pubnub( 'demo', 'demo', None, False )

UDP_IP = "127.0.0.1"
UDP_PORT = 5005
SENTINEL = True
sock = socket.socket(socket.AF_INET, # Internet
                     socket.SOCK_DGRAM) # UDP
sock.bind((UDP_IP, UDP_PORT))

print "Started UDP Service."
while SENTINEL:
    data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
    p = re.compile('stop:udp:service')
    m = re.search(p, data)
    if(m.group() == "stop:udp:service"):
        print "Stopping UDP Service."
        info = pubnub.publish({
            'channel' : 'udp_comms', # your choice
            'message' : {
                'text' : "Endding comms"
            }
        })
        SENTINEL = False;
    ## Publish Example
    info = pubnub.publish({
        'channel' : 'hello_world',
        'message' : {
            'text' : data
        }
    })