title: Python print unique arrays from an array
body: <p>I am trying to print a unique set of arrays from an array <strong>while keeping the array in order</strong>.</p>
  
  <p>Example array:</p>
  
  <pre><code>[[1,2,3], [1,3,2], [1,2,3], [3,1,2]]
  </code></pre>
  
  <p>The output that I am looking for is:</p>
  
  <pre><code>[[1,2,3], [1,3,2], [3,1,2]]
  </code></pre>
  
  <p>I've looked at converting the array into a set but it appears that it has issues with a 2D array (I believe it compares each element individually which if it could run, it would result in simply <code>[1,2,3]</code>) also, I am reading that it does not keep the order of the values.</p>