title: How to find the longest word with python?
body: <p>How can I use python to find the longest word from a set of words?
  I can find the first word like this: </p>
  
  <pre><code>'a aa aaa aa'[:'a aa aaa aa'.find(' ',1,10)]
  
  'a'
  
  rfind is another subset
  
  'a aa aaa aa'[:'a aa aaa aa'.rfind(' ',1,10)]
  
  'a aa aaa'
  </code></pre>