title: Tkinter - How to create a combo box with autocompletion
body: <p>Is it possible to create a combobox that updates with the closest item in its list as you type into it? </p>
  
  <p>For example:</p>
  
  <pre><code>A = ttk.Combobox()
  A['values'] = ['Chris', 'Jane', 'Ben', 'Megan']
  </code></pre>
  
  <p>Then you type "Chr" into the combobox, I want it to automatically fill in "Chris".</p>