code: def total_seconds(delta):
      
      try:
          return delta.total_seconds()
      except AttributeError:
          return ((delta.days * 24 * 3600) + delta.seconds +
                  float(delta.microseconds) / (10 ** 6))
docs: Return the total seconds of datetime.timedelta object.
  
      Compute total seconds of datetime.timedelta, datetime.timedelta
      doesn't have method total_seconds in Python2.6, calculate it manually.