title: Average difference between dates in Python
body: <p>I have a series of datetime objects and would like to calculate the average delta between them.</p>
  
  <p>For example, if the input was <code>(2008-10-01 12:15:00, 2008-10-01 12:25:00, 2008-10-01 12:35:00)</code>, then the average delta would be exactly 00:10:00, or 10 minutes.</p>
  
  <p>Any suggestions on how to calculate this using Python?</p>