title: Is it possible to iterate through all of a dictionary's keys except a specific subset?
body: <p>Let's say I have a dictionary with the keys being all the numbers 1-10. And I want to iterate through that excluding keys 6-8. Is it possible to do something like</p>
  <pre><code>for key in dictionary.keys().exclude([1,2,3])
  </code></pre>
  <p>I've made up <code>.exclude()</code> to demonstrate what I want to do.</p>