The Smart Fridge

import conf, json, time
from boltiot import Sms, Bolt
mybolt = Bolt(conf.API_KEY, conf.DEVICE_ID)
sms = Sms(conf.SSID, conf.AUTH_TOKEN, conf.TO_NUMBER, conf.FROM_NUMBER)
history_data=[]
while True:
    response = mybolt.analogRead('A0')
    data = json.loads(response)
    if data['success'] != 1:
        print("There was an error while retriving the data.")
        print("This is the error:"+data['value'])
        time.sleep(10)
        continue

    print ("This is the value "+data['value'])
    sensor_value=0
    try:
        sensor_value = int(data['value'])
        history_data.append(sensor_value)
    except e:
        print("There was an error while parsing the response: ",e)
        continue
    print(history_data)
    if(len(history_data)<=7):
          print("require some more values to process")
          time.sleep(10) 
          continue
    else:
        if(history_data[-1]>history_data[-2]):
            if(history_data[-1]>100):
                print("somebody opened the fridge.... sending alert")
                mybolt.digitalWrite(0, 'HIGH')
                print("Making request to Twilio to send a SMS")
                response = sms.send_sms("somebody ope ned the fridge door...")
                print("Response received from Twilio is: " + str(response))
                time.sleep(5)
                mybolt.digitalWrite(0, 'LOW')
                time.sleep(20)
            else:
                time.sleep(5)
                continue
                
    time.sleep(10)