@reboot sudo python /home/pi/quiz/quiz.py &

#example of a question
def question2():
    print("Question2")
    while True:
        if GPIO.input(quiz_button1) == False:
            answer_correct(2)
            play_sound(fact_sound_2)
            break
        elif GPIO.input(quiz_button2) == False:
            answer_wrong(led_wrong)
        elif GPIO.input(quiz_button3) == False:
            answer_wrong(led_wrong)
        elif GPIO.input(quiz_button4) == False:
            answer_wrong(led_wrong)
    turn_led_on(ind_led2)

def main():
    turn_all_leds_off()
    try:
        while True:
            # starts quiz
            find_null()
            print("Start of quiz")
            question1()
            question2()
            question3()
            question4()

    finally:
        GPIO.cleanup()

if __name__ == "__main__":
    main()