title: How to write complex sort in python?
body: <p>Is there a concise way to sort a list by first sorting numbers in ascending order and then sort the characters in descending order?</p>
  <p>How would you sort the following:</p>
  <p><code>['2', '4', '1', '6', '7', '4', '2', 'K', 'A', 'Z', 'B', 'W']</code></p>
  <p>To:</p>
  <p><code>['1', '2', '2', '4', '4', '6', '7', 'Z', 'W', 'K', 'B', 'A']</code></p>