import.py

import os
import time
import sys
from Pubnub import Pubnub
import Adafruit_DHT as dht
pubnub = Pubnub(publish_key='demo', subscribe_key='demo')

publish.py

h,t = dht.read_retry(dht.DHT22, 4)
temp='{0:0.1f}'.format(t)
hum='{0:0.1f}'.format(h)
message = {'temperature': temp, 'humidity': hum}
pubnub.publish(channel=channel, message=message, callback=callback, error=callback)

read_value.py

h,t = dht.read_retry(dht.DHT22, 4)
print 'Temp={0:0.1f}*C Humidity={1:0.1f}%'.format(t, h)