#!/usr/bin/python

import RPi.GPIO as GPIO
import subprocess


print ('waiting for button presses');

GPIO.setmode(GPIO.BCM)
GPIO.setup(26, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.wait_for_edge(26, GPIO.FALLING)

print ('button pressed, shutting down')

subprocess.call(['ledctl', 'boot'], shell=False)

subprocess.call(['shutdown', '-h', 'now'], shell=False)