#!/usr/bin/python

import time
import gi
gi.require_version('Gtk', '3.0')
gi.require_version('Wnck', '3.0')
from gi.repository import Gtk, GObject, Wnck

while Gtk.events_pending():
    Gtk.main_iteration()

screen = Wnck.Screen.get_default()

window = Gtk.Window()
window.connect("delete-event", Gtk.main_quit)
window.show_all()
Gtk.main()