title: Remove more than one key from Python dict
body: <p>Is there any efficient shortcut method to delete more than one key at a time from a python dictionary?</p>
  
  <p>For instance;</p>
  
  <pre><code>x = {'a': 5, 'b': 2, 'c': 3}
  x.pop('a', 'b')
  print x
  {'c': 3}
  </code></pre>