title: Dateutil package: absolute difference in seconds between two dates
body: <p>I use Python and 'dateutil' package. I have two dates 'date1' and 'date2' that are parsed from some strings:</p>
  
  <pre><code>import dateutil.parser
  date1 = dateutil.parser.parse(string1,fuzzy=True)
  date2 = dateutil.parser.parse(string2,fuzzy=True)
  </code></pre>
  
  <p>How is it possible to get absolute (non-negative) time difference between 'date1' and 'date2' in seconds? Just one number.</p>