title: Determine if 2 lists have the same elements, regardless of order?
body: <p>Sorry for the simple question, but I'm having a hard time finding the answer.</p>
  
  <p>When I compare 2 lists, I want to know if they are "equal" in that they have the same contents, but in different order.</p>
  
  <p>Ex:</p>
  
  <pre><code>x = ['a', 'b']
  y = ['b', 'a']
  </code></pre>
  
  <p>I want <code>x == y</code> to evaluate to <code>True</code>.</p>