Comment 83 for bug 321176

@Gustavo Carneiro

Yes, that's the whole point. Just forgot to add time.sleep(1) to make this happen every one second - then X won't be busy at all.

That's the whole point - when developer forgets to add gtk.gdk.threads_enter() and gtk.gdk.threads_leave() this happens.If you add time.sleep(1) GTK won't be constantly updating the status icon (it will do it every one second) and top will show nothing, but screen will be still frozen.