title: Finding the differences between two nested lists
body: <p>I have a nested list and another nested list which is a subset of the first list:</p>
  
  <pre><code>lst = [[1, 2], [3, 4], [1, 2], [5, 6], [8, 3], [2, 7]]
  sublst = [[1, 2], [8, 3]]
  </code></pre>
  
  <p>How can I find the inner lists which are not in the sublist. The desired output using the above example is:</p>
  
  <pre><code>diff = [[3, 4], [5, 6], [2, 7]]
  </code></pre>