title: Python find numbers not in set
body: <p>I have a range of numbers such as 1-100.  And I have a set that holds all, or a random subset of numbers in that range such as:</p>
  
  <pre><code>s = set([1,2,3,35,67,87,95])
  </code></pre>
  
  <p>What is a good way to get all of the numbers in the range 1-100 that are not in that set?</p>