python类day()的实例源码

def get_day_names(width='wide', context='format', locale=LC_TIME):
    """Return the day names used by the locale for the specified format.

    >>> get_day_names('wide', locale='en_US')[1]
    u'Tuesday'
    >>> get_day_names('abbreviated', locale='es')[1]
    u'mar.'
    >>> get_day_names('narrow', context='stand-alone', locale='de_DE')[1]
    u'D'

    :param width: the width to use, one of "wide", "abbreviated", or "narrow"
    :param context: the context, either "format" or "stand-alone"
    :param locale: the `Locale` object, or a locale string
    """
    return Locale.parse(locale).days[context][width]

def parse_date(string, locale=LC_TIME):
    """Parse a date from a string.

    This function uses the date format for the locale as a hint to determine
    the order in which the date fields appear in the string.

    >>> parse_date('4/1/04', locale='en_US')
    datetime.date(2004, 4, 1)
    >>> parse_date('01.04.2004', locale='de_DE')
    datetime.date(2004, 4, 1)

    :param string: the string containing the date
    :param locale: a `Locale` object or a locale identifier
    """
    # TODO: try ISO format first?
    format = get_date_format(locale=locale).pattern.lower()
    year_idx = format.index('y')
    month_idx = format.index('m')
    if month_idx < 0:
        month_idx = format.index('l')
    day_idx = format.index('d')

    indexes = [(year_idx, 'Y'), (month_idx, 'M'), (day_idx, 'D')]
    indexes.sort()
    indexes = dict([(item[1], idx) for idx, item in enumerate(indexes)])

    # FIXME: this currently only supports numbers, but should also support month
    #        names, both in the requested locale, and english

    numbers = re.findall('(\d+)', string)
    year = numbers[indexes['Y']]
    if len(year) == 2:
        year = 2000 + int(year)
    else:
        year = int(year)
    month = int(numbers[indexes['M']])
    day = int(numbers[indexes['D']])
    if month > 12:
        month, day = day, month
    return date(year, month, day)

def format_week(self, char, num):
        if char.islower(): # week of year
            day_of_year = self.get_day_of_year()
            week = self.get_week_number(day_of_year)
            if week == 0:
                date = self.value - timedelta(days=day_of_year)
                week = self.get_week_number(self.get_day_of_year(date),
                                            date.weekday())
            return self.format(week, num)
        else: # week of month
            week = self.get_week_number(self.value.day)
            if week == 0:
                date = self.value - timedelta(days=self.value.day)
                week = self.get_week_number(date.day, date.weekday())
            return '%d' % week

def get_day_of_year(self, date=None):
        if date is None:
            date = self.value
        return (date - date.replace(month=1, day=1)).days + 1

def get_week_number(self, day_of_period, day_of_week=None):
        """Return the number of the week of a day within a period. This may be
        the week number in a year or the week number in a month.

        Usually this will return a value equal to or greater than 1, but if the
        first week of the period is so short that it actually counts as the last
        week of the previous period, this function will return 0.

        >>> format = DateTimeFormat(date(2006, 1, 8), Locale.parse('de_DE'))
        >>> format.get_week_number(6)
        1

        >>> format = DateTimeFormat(date(2006, 1, 8), Locale.parse('en_US'))
        >>> format.get_week_number(6)
        2

        :param day_of_period: the number of the day in the period (usually
                              either the day of month or the day of year)
        :param day_of_week: the week day; if ommitted, the week day of the
                            current date is assumed
        """
        if day_of_week is None:
            day_of_week = self.value.weekday()
        first_day = (day_of_week - self.locale.first_week_day -
                     day_of_period + 1) % 7
        if first_day < 0:
            first_day += 7
        week_number = (day_of_period + first_day - 1) // 7
        if 7 - first_day >= self.locale.min_week_days:
            week_number += 1
        return week_number

def test(self, ctx):

        date = datetime.datetime.now()

        nd = str(date.day)
        nd += "-"
        nd += str(date.month)
        nd += "-"
        nd += str(date.year)

        await ctx.send(nd)

def dateFormatter(self, date):
      month = calendar.month_name[date.month]
      weekday = calendar.day_name[date.weekday()]
      day = date.day
      year = date.year
      results = str(weekday) + ", " + str(month) + " " + str(day) + ", " + str(year)
      return results

def apply(self, other):
        if isinstance(other, datetime):
            n = self.n

            if n == 0 and other.weekday() > 4:
                n = 1

            result = other

            # avoid slowness below
            if abs(n) > 5:
                k = n // 5
                result = result + timedelta(7 * k)
                if n < 0 and result.weekday() > 4:
                    n += 1
                n -= 5 * k
                if n == 0 and result.weekday() > 4:
                    n -= 1

            while n != 0:
                k = n // abs(n)
                result = result + timedelta(k)
                if result.weekday() < 5:
                    n -= k

            if self.offset:
                result = result + self.offset
            return result

        elif isinstance(other, (timedelta, Tick)):
            return BDay(self.n, offset=self.offset + other,
                        normalize=self.normalize)
        else:
            raise ApplyTypeError('Only know how to combine business day with '
                                 'datetime or timedelta.')

def _prev_opening_time(self, other):
        """
        If n is positive, return yesterday's business day opening time.
        Otherwise yesterday business day's opening time.
        """
        if not self.next_bday.onOffset(other):
            other = other - self.next_bday
        else:
            if self.n >= 0 and other.time() < self.start:
                other = other - self.next_bday
            elif self.n < 0 and other.time() > self.start:
                other = other - self.next_bday
        return datetime(other.year, other.month, other.day,
                        self.start.hour, self.start.minute)

def _get_business_hours_by_sec(self):
        """
        Return business hours in a day by seconds.
        """
        if self._get_daytime_flag():
            # create dummy datetime to calcurate businesshours in a day
            dtstart = datetime(2014, 4, 1, self.start.hour, self.start.minute)
            until = datetime(2014, 4, 1, self.end.hour, self.end.minute)
            return tslib.tot_seconds(until - dtstart)
        else:
            self.daytime = False
            dtstart = datetime(2014, 4, 1, self.start.hour, self.start.minute)
            until = datetime(2014, 4, 2, self.end.hour, self.end.minute)
            return tslib.tot_seconds(until - dtstart)

def onOffset(self, dt):
        if self.normalize and not _is_normalized(dt):
            return False

        if dt.tzinfo is not None:
            dt = datetime(dt.year, dt.month, dt.day, dt.hour,
                          dt.minute, dt.second, dt.microsecond)
        # Valid BH can be on the different BusinessDay during midnight
        # Distinguish by the time spent from previous opening time
        businesshours = self._get_business_hours_by_sec()
        return self._onOffset(dt, businesshours)

def apply(self, other):
        n = self.n
        _, days_in_month = tslib.monthrange(other.year, other.month)
        if other.day != days_in_month:
            other = other + relativedelta(months=-1, day=31)
            if n <= 0:
                n = n + 1
        other = other + relativedelta(months=n, day=31)
        return other

def onOffset(self, dt):
        if self.normalize and not _is_normalized(dt):
            return False
        days_in_month = tslib.monthrange(dt.year, dt.month)[1]
        return dt.day == days_in_month

def apply(self, other):
        n = self.n

        if other.day > 1 and n <= 0:  # then roll forward if n<=0
            n += 1

        return other + relativedelta(months=n, day=1)

def onOffset(self, dt):
        if self.normalize and not _is_normalized(dt):
            return False
        return dt.day == 1

def apply(self, other):
        n = self.n
        wkday, days_in_month = tslib.monthrange(other.year, other.month)
        lastBDay = days_in_month - max(((wkday + days_in_month - 1)
                                        % 7) - 4, 0)

        if n > 0 and not other.day >= lastBDay:
            n = n - 1
        elif n <= 0 and other.day > lastBDay:
            n = n + 1
        other = other + relativedelta(months=n, day=31)

        if other.weekday() > 4:
            other = other - BDay()
        return other

def onOffset(self, dt):
        if self.normalize and not _is_normalized(dt):
            return False
        first_weekday, _ = tslib.monthrange(dt.year, dt.month)
        if first_weekday == 5:
            return dt.day == 3
        elif first_weekday == 6:
            return dt.day == 2
        else:
            return dt.day == 1

def __init__(self, n=1, normalize=False, **kwds):
        self.n = n
        self.normalize = normalize
        self.weekday = kwds.get('weekday', None)

        if self.weekday is not None:
            if self.weekday < 0 or self.weekday > 6:
                raise ValueError('Day must be 0<=day<=6, got %d' %
                                 self.weekday)

        self._inc = timedelta(weeks=1)
        self.kwds = kwds

def __init__(self, n=1, normalize=False, **kwds):
        self.n = n
        self.normalize = normalize
        self.weekday = kwds['weekday']

        if self.n == 0:
            raise ValueError('N cannot be 0')

        if self.weekday < 0 or self.weekday > 6:
            raise ValueError('Day must be 0<=day<=6, got %d' %
                             self.weekday)

        self.kwds = kwds

def apply(self, other):
        n = self.n
        wkday, _ = tslib.monthrange(other.year, other.month)

        first = _get_firstbday(wkday)

        monthsSince = (other.month - self.startingMonth) % 3

        if n <= 0 and monthsSince != 0:  # make sure to roll forward so negate
            monthsSince = monthsSince - 3

        # roll forward if on same month later than first bday
        if n <= 0 and (monthsSince == 0 and other.day > first):
            n = n + 1
        # pretend to roll back if on same month but before firstbday
        elif n > 0 and (monthsSince == 0 and other.day < first):
            n = n - 1

        # get the first bday for result
        other = other + relativedelta(months=3 * n - monthsSince)
        wkday, _ = tslib.monthrange(other.year, other.month)
        first = _get_firstbday(wkday)
        result = datetime(other.year, other.month, first,
                          other.hour, other.minute, other.second,
                          other.microsecond)
        return result