Return days between start & stop (inclusive)
    
    Note that start must be less than stop or else 0 is returned.
    
    @param start: Start date
    @param stop: Stop date
    @return int

def days(start, stop):
    """
    Return days between start & stop (inclusive)
    
    Note that start must be less than stop or else 0 is returned.
    
    @param start: Start date
    @param stop: Stop date
    @return int
    """
    dates=rrule.rruleset()
    # Get dates between start/stop (which are inclusive)
    dates.rrule(rrule.rrule(rrule.DAILY, dtstart=start, until=stop))
    return dates.count()