pi@raspberrypi:~ $ sudo python2 peter.py
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
'4' is longer than 'HIGH'
^CTraceback (most recent call last):
  File "peter.py", line 17, in <module>
    time.sleep(0.1)
KeyboardInterrupt
pi@raspberrypi:~ $



import RPi.GPIO as GPIO
import time

sensor = 4
sensor2 = 17
GPIO.setmode(GPIO.BCM)
GPIO.setup(sensor, GPIO.IN, GPIO.PUD_DOWN)
GPIO.setup(sensor2, GPIO.IN, GPIO.PUD_DOWN)

previous_state = False
current_state = False

previous_state2 = False
current_state2 = False

while True:
    time.sleep(0.1)
    previous_state = current_state
    previous_state2 = current_state2
    current_state = GPIO.input(sensor)
    current_state2 = GPIO.input(sensor2)
    if not(current_state and current_state2):
        new_state = "HIGH"
        new_state2 = "HIGH"
        print("'{0}' is longer than '{1}'".format(sensor, new_state))