dialog.py2

#!/usr/bin/python2

import gtk

window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.connect("destroy", lambda w: gtk.main_quit())
window.set_title("Dialog?")
window.set_geometry_hints(None, 600, 400)
accel_group = gtk.AccelGroup()
accel_group.connect_group(ord('q'), gtk.gdk.CONTROL_MASK, gtk.ACCEL_LOCKED, gtk.main_quit)
window.add_accel_group(accel_group)

#****************************************************
window.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
#****************************************************

window.show_all()
gtk.main()