CD/DVD ROM tray open/closed switch GPIO script for Raspberry Pi

gptray.py

#!/usr/bin/python

# turn on yellow LED when CD/DVD tray fully open, blue LED when fully closed

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BOARD)

OPSW = 22 # G25
CLSW = 37 # G26

LED_Y = 32 # G12
LED_B = 33 # G13

GPIO.setwarnings(False)
GPIO.setup([OPSW, CLSW], GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup([LED_Y, LED_B], GPIO.OUT, initial=GPIO.HIGH)

def handle(pin):
	value = GPIO.input(pin)

	if pin == OPSW:
		GPIO.output(LED_Y, value)
	elif pin == CLSW:
		GPIO.output(LED_B, value)

GPIO.add_event_detect(OPSW, GPIO.BOTH, handle)
GPIO.add_event_detect(CLSW, GPIO.BOTH, handle)

while True:
	time.sleep(1e6)