Notify when youtube subscriber count changes

sub.py

import requests
import json
import time
import os
from datetime import datetime

stat = ""
while True:
  r = requests.get("https://www.googleapis.com/youtube/v3/channels?part=statistics&id=$$$CHANNEL_ID$$$&key=$$$YOUR_API_KEY$$$")
  j = json.loads(r.content)
  newStat = j['items'][0]['statistics']['subscriberCount']
  print datetime.now()
  print newStat
  print "----"
  if stat != newStat:
    os.system('osascript -e "display notification \"' + newStat + '\""')
  stat = newStat
  time.sleep(60)