dates.py 文件源码

def __init__(self, date=None, calendar=gregorian, format=None):
        self.calendar = calendar
        if date is None:
            self.ordinal = datetime.date.today().toordinal()
            self.ymd = calendar.ordinal_to_date(self.ordinal)
        elif isinstance(date, Date):
            self.ordinal = date.ordinal
            self.ymd = calendar.ordinal_to_date(self.ordinal)
        elif isinstance(date, datetime.date):
            self.ordinal = date.toordinal()
            self.ymd = calendar.ordinal_to_date(self.ordinal)
        elif isinstance(date, Integral):
            self.ordinal = int(date)
            self.ymd = calendar.ordinal_to_date(self.ordinal)
        elif non_string_sequence(date, Integral) and len(date) == 3:
            self.ymd = YMD(*date)
            if not calendar.validate(self.ymd):
                raise InvalidDate("Invalid {} date: {}".format(calendar.calendar_name, self.ymd))
            self.ordinal = calendar.date_to_ordinal(self.ymd)
        else:
            raise TypeError("Invalid input type for Date")
        self.weekday = calendar.weekday(self.ymd, self.ordinal)
        self.format = format