'Stamps end time.'

def cancel_progress(self, stage_status=None, notes=None):

    logging.info(('Cancelling    process    %s' % self.process_name))
    self.stage_status = (stage_status or 'cancelled')
    self.end_time = datetime.datetime.now()
    self.completed = False
    self.notes = notes
    self.save()
