Python hotkey script for powershell lag switch

import pythoncom, pyHook, winsound, os, sys

def hooking(event):
	if event.Key == 'F1':
		print "Working..."
		os.system("lagg.bat")
		winsound.Beep(1000,200)
		print "ON"
		return True
	if event.Key == 'F2':
		print "Working..."
		os.system("lagg1.bat")
		winsound.Beep(1000,200)
		print "OFF"
		return True
	if  event.Key == 'Escape':
		sys.exit()
	return True
# return True to pass the event to other handlers

# create a hook manager
hm = pyHook.HookManager()
# watch for all mouse events
hm.KeyDown = hooking
# set the hook
hm.HookKeyboard()
# wait forever
pythoncom.PumpMessages()