title: Python 3 closing tkinter messagebox through code
body: <p>I am new to Python and failing on first hurdle. I have a message box with a canvas with image loaded into it that's triggered to activate via a Passive infrared sensor.</p>
  
  <p>Got everything working but I want the message box to disappear after 5 secs. The time delay isn't a problem but trying to get the message box to go is another thing been using <code>destroy()</code> but nothing.</p>
  
  <p>Understand there are window levels I.e Toplevel. But wondered if someone could point me in the right direction.</p>