title: "Always on top" window in Kivy
body: <p>Is there some possible way of setting <code>kivy.Window</code> to be always on the top of other windows. I mean something similar to <code>tkinter.Tk().attributes('-topmost', True)</code>. I have tried to set <code>Window.on_hide = Window.raise_window</code> but with no success.</p>
  
  <p>I need to do this really badly so please write any even complicated solution Any help will be highly appreciated.</p>
  
  <p><strong>EDIT:</strong></p>
  
  <p>I am on Windows 10, python 3.6.5</p>