LED Blink forever

This program demonstrates looping concept. The LED's blink forever because the conditions never satisfy in the loop.The board is set in BCM mode. PIN's 17 and 27 are configured for output.


import time
import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(17,GPIO.OUT)
GPIO.setup(27,GPIO.OUT)
while 1:
GPIO.output(17,GPIO.HIGH)
GPIO.output(27,GPIO.HIGH)
time.sleep(1)
GPIO.output(17,GPIO.LOW)
GPIO.output(27,GPIO.LOW)
time.sleep(1)