simple MN alert

#!/usr/bin/python

import os, sys, time, subprocess, threading, pygame

def check():
    # 1800 secs = 30 mins, adjust to suit
    mythread = threading.Timer(1800.0, check)

    mythread.start()
    now = time.strftime("%c")
    print '\n' + now

    m = 'mnIPlist.txt'
    # stick your IPs in a file called mnIPlist.txt in the same directory as this script
    #eg
    #123.234.345.4
    #123.234.345.5
    #123.234.345.6

    # path to darkcoind
    p = '/home/stu/.darkcoin/darkcoind'

    with open(m, mode="r") as f:
        a = [line.strip() for line in f]
        for line in a:
            try:
                r = subprocess.check_output(p + ' masternode list | grep ' + line, shell=True)
                if r[-3] is '1':
                        print 'MN ' + line + ' is OK!'
                except:
                    print 'MN ' + line + ' is NOT OK!'
                    pygame.mixer.init()
                pygame.mixer.music.load("my-masternode-is-b0rked.mp3")
                pygame.mixer.music.play()
                while pygame.mixer.music.get_busy() == True:
                        continue
                    mythread._Thread__stop()
                    sys.exit()

check()