import RPi.GPIO as GPIO
import time

ledPin = 38       # define ledPin
buttonPin = 40    # define buttonPin


def setup():
    GPIO.setmode(GPIO.BOARD)
    GPIO.setup(ledPin, GPIO.OUT)
    GPIO.setup(buttonPin, GPIO.IN, pull_up_down = GPIO.PUD_UP)


def loop():
    while True:
        if GPIO.input(buttonPin)==GPIO.LOW:
            for x in range(5):
                GPIO.output(ledPin,GPIO.HIGH)
                time.sleep(0.3)
                GPIO.output(ledPin,GPIO.LOW)
                time.sleep(0.3)


def destroy():
    GPIO.cleanup()


if __name__ == '__main__':
    setup()
    try:
        loop()
    except KeyboardInterrupt:
        destroy()