title: How to bind to all the number keys in Tkinter?
body: <p>Is there any way to bind to all the number keys in Tkinter?</p>
  
  <p>It should be equivalent to this:</p>
  
  <pre><code>frame.bind("0", my_handler)
  frame.bind("1", my_handler)
  frame.bind("2", my_handler)
  ...
  </code></pre>
  
  <p>I was hoping that I can find something like:</p>
  
  <pre><code>frame.bind("&lt; num&gt;", my_handler)
  </code></pre>
  
  <p>but apparently this does not work.</p>