RaspberryPi #3 DHT11 Humidity and Temp to Text File

import time
import datetime
import RPi.GPIO as GPIO
import dht11
import time
import datetime

# initialize GPIO
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BCM)
GPIO.cleanup()

# read data using pin 14
instance = dht11.DHT11(pin=5)

while True:
    now = datetime.datetime.now()
    date = now.strftime("%Y-%m-%d : %H:%M:%S")
    result = instance.read()
    if result.is_valid():
        with open("Logger.txt", "a") as text_file:
            text_file.write("DateTime: %s Humid: %s %% Temp: %s C*\n" % (date,result.humidity,result.temperature))
            print ("DateTime: %s Humid: %s %% Temp: %s C*\n" % (date,result.humidity,result.temperature))
    time.sleep(10)