LPG Leakage Detection

import conf
from boltiot import Sms,Bolt
import json,time

maximum_limit=800
mybolt=Bolt(conf.API_KEY,conf.DEVICE_ID)
sms=Sms(conf.SID,conf.AUTH_TOKEN,conf.TO_NUMBER,conf.FROM_NUMBER)
while True:
    print("Reading Values")
    response=mybolt.analogRead('A0')
    data=json.loads(response)
    print("Sensor Value is:"+ str(data['value']))
    my=Bolt(conf.API_KEY,conf.DEVICE_ID)
    res=my.digitalWrite('1','LOW')
    print(res)
    try:
      sensor_val=int(data['value'])
      if sensor_val > maximum_limit:
        my=Bolt(conf.API_KEY,conf.DEVICE_ID)
        res=my.digitalWrite('1','HIGH')
        response=sms.send_sms("There is a leakage")
        print("Sms Send:"+str(response.status))
    except Exception as e:
      print(e)
time.sleep(10)