fiscalyear.py 文件源码

def _check_day(month, day):
    """Check if day is a valid day of month.

    :param month: The month to test
    :param day: The day to test
    :return: The day
    :rtype: int
    :raises TypeError: If month or day is not an int or int-like string
    :raises ValueError: If month or day is out of range
    """
    month = _check_month(month)
    day = _check_int(day)

    # Find the last day of the month
    # Use a non-leap year
    max_day = calendar.monthrange(2001, month)[1]

    if 1 <= day <= max_day:
        return day
    else:
        raise ValueError('day must be in %d..%d' % (1, max_day), day)