prop.py 文件源码

def from_ical(ical, timezone=None):
        tzinfo = None
        if timezone:
            try:
                tzinfo = pytz.timezone(timezone)
            except pytz.UnknownTimeZoneError:
                tzinfo = _timezone_cache.get(timezone, None)

        try:
            timetuple = (
                int(ical[:4]),  # year
                int(ical[4:6]),  # month
                int(ical[6:8]),  # day
                int(ical[9:11]),  # hour
                int(ical[11:13]),  # minute
                int(ical[13:15]),  # second
            )
            if tzinfo:
                return tzinfo.localize(datetime(*timetuple))
            elif not ical[15:]:
                return datetime(*timetuple)
            elif ical[15:16] == 'Z':
                return pytz.utc.localize(datetime(*timetuple))
            else:
                raise ValueError(ical)
        except:
            raise ValueError('Wrong datetime format: %s' % ical)