firebase.py

import RPi.GPIO as GPIO
from time import sleep
from firebase import firebase
import Adafruit_DHT

sensor = Adafruit_DHT.DHT11
pin = 4

firebase = firebase.FirebaseApplication('https://YOUR_FIREBASE_URL.firebaseio.com/', None)
firebase.put("/", "/temp", "0.00")
firebase.put("/", "/humidity", "0.00")

while True:
	humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
        if humidity is not None and temperature is not None:
                str_temp = ' {0:0.2f} *C '.format(temperature)
                str_hum  = ' {0:0.2f} %'.format(humidity)
                print('Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature,humidity))
                firebase.put("/","/temp",str_temp)
                firebase.put("/","/humidity",str_hum)
        else:
                print('Failed to get reading. Try again!')
        sleep(5)