Light_trigger.py

import RPi.GPIO as GPIO
import os
import time
GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)
GPIO.setup(7, GPIO.OUT)#Light
GPIO.setup(26, GPIO.IN)#Motion Sensor
GPIO.setup(18, GPIO.IN, pull_up_down=GPIO.PUD_UP)#Switch
GPIO.setup(11, GPIO.OUT)#Switch LED

countdown = 300 #Countdown Time in seconds until light is deactivated
x = 0
auto_disabled = False

def cls():
    os.system("clear")

def light_toggle():
 if GPIO.input(7):
    GPIO.output(7,False)#LIGHT OFF
    GPIO.output(11,True)#BUTTON LIGHT ON
    print "Turning Light Off"
 else:
    GPIO.output(7,True)#LIGHT ON
    GPIO.output(11,False)#BUTTON LIGHT OFF
    print "Turning Light On"
n = 0
while(n != 1):  #Loops infinitely

    if (GPIO.input(18)==0):
        light_toggle()
        print "Light switching on/off"
        time.sleep(1)
        x = 0


    elif (GPIO.input(18)==1):
     print("Waiting for button press.")
     x = 0
     cls()

     if (GPIO.input(7)==0):
      lighton = False
     elif (GPIO.input(7)==1):
      lighton = True

    print ("Light on: %ls" %lighton)

    while (GPIO.input(7)==1 and GPIO.input(26)==0 and GPIO.input(18)==1 and x != countdown): #Loops while Light is on, no movement is detected and switch isn't pressed
     shutdown_time = countdown - x
     mins = shutdown_time / 60
     secs = shutdown_time % 60
     if x == int(x):
      print ("Turning light off in %d secs. (%d Minute(s) and %d Second(s).)" %(shutdown_time, mins, secs))
     time.sleep(0.25)
     x = x + 0.25
     if (x == countdown):
      light_toggle()
      print ("Light turned off due to inactivity.")
      auto_disabled = True

    while (GPIO.input(7)==0 and GPIO.input(26)==1 and auto_disabled == True):
     light_toggle()
     print("Movement detected, re-enabling lighting.")