Send raspberry pi data to thinkspeak

dht22.py

""" 
dht22.py 
Temperature/Humidity monitor using Raspberry Pi and DHT22. 
Data is displayed at thingspeak.com
Original author: Mahesh Venkitachalam at electronut.in 
Modified by Adam Garbo on December 1, 2016 
""" 
import sys 
import RPi.GPIO as GPIO 
from time import sleep 
import Adafruit_DHT 
import urllib2 
myAPI = "THINGSPEAK WRITE API_KEY" 

def getSensorData(): 
   RH, T = Adafruit_DHT.read_retry(Adafruit_DHT.DHT22, 4) 
   return (str(round(RH, 1)), str(round(T,1))) 

def main(): 
   print 'starting...' 
   baseURL = 'https://api.thingspeak.com/update?api_key=%s' % myAPI 
   while True: 
       try: 
           RH, T = getSensorData() 
	   print RH, T
           f = urllib2.urlopen(baseURL + 
                               "&field1=%s&field2=%s" % (RH, T)) 
           print f.read() 
           f.close() 
           sleep(300) #uploads DHT22 sensor values every 5 minutes 
       except: 
           print 'exiting with error' 
           break 

# call main 
if __name__ == '__main__': 
   main()

script_check.sh

#! /bin/sh

pgrep -f dht22.py || sudo nohup python /home/pi/thingspeak/dht22.py /dev/null &