title: How to close a tkinter canvas?
body: <p>Here is part of my code:</p>
  
  <pre><code>import tkinter
  
  class Program:
      def __init__(self):
          self.canvas = tkinter.Canvas(1000, 500, bg="yellow")
          self.canvas.pack()
  </code></pre>
  
  <p>Which command should I use in order to close tkinter window (canvas)?</p>