Example for capture and publish temperature and humidity value from DHT sensor on Raspberry Pi with Adafruit Python library.

DHT11_Adafruit_sample.py

#!/usr/bin/python
import sys
import time
import Adafruit_DHT
import requests
import json

def main():
    try:
        while True:
            h, t = Adafruit_DHT.read_retry(11,4)
            print 'Temp: {0:0.1f} C, Humidity: {1:0.1f} %'.format(t,h)
            _publish_adafruit(t,h)
            time.sleep(10)
    except KeyboardInterrupt:
        pass

def _publish_adafruit(temp, hum):
    try:
        adaUrl = 'https://io.adafruit.com/api/v2/{YOUR_USER_NAME}/groups/{GROUP_KEY}/data'
        adaHeaders = {'X-AIO-Key':'{YOUR AIO-KEY}',
                      'Content-Type': 'application/json'}
        adaPayload = {'feeds':[
        {'key':'{TEMPERATURE_SENSOR_KEY}','value':temp},
        {'key':'{HUMIDITY_SENSOR_KEY}','value':hum}]}
        #print('Before Adafruit call')
        adaRep = requests.post(adaUrl, headers=adaHeaders, data=json.dumps(adaPayload))
        print('Call Adafruit API success.')
        return adaRep
    except BaseException:
        print('Adafrui call failed.')

if __name__ == '__main__':
    main()