activate_light.py

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(18,GPIO.OUT)
print "LED on"
GPIO.output(18,GPIO.HIGH)
time.sleep(1)
print "LED off"
GPIO.output(18,GPIO.LOW)

# while True:
#   print "LED on"
#   GPIO.output(18,GPIO.HIGH)
#   time.sleep(1)
#   print "LED off"
#   GPIO.output(18,GPIO.LOW)