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Diffstat (limited to 'lib/python2.7/site-packages/python_dateutil-1.5-py2.7.egg/dateutil/relativedelta.py')
| -rwxr-xr-x | lib/python2.7/site-packages/python_dateutil-1.5-py2.7.egg/dateutil/relativedelta.py | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/lib/python2.7/site-packages/python_dateutil-1.5-py2.7.egg/dateutil/relativedelta.py b/lib/python2.7/site-packages/python_dateutil-1.5-py2.7.egg/dateutil/relativedelta.py deleted file mode 100755 index 0c72a818..00000000 --- a/lib/python2.7/site-packages/python_dateutil-1.5-py2.7.egg/dateutil/relativedelta.py +++ /dev/null @@ -1,432 +0,0 @@ -""" -Copyright (c) 2003-2010 Gustavo Niemeyer <gustavo@niemeyer.net> - -This module offers extensions to the standard python 2.3+ -datetime module. -""" -__author__ = "Gustavo Niemeyer <gustavo@niemeyer.net>" -__license__ = "PSF License" - -import datetime -import calendar - -__all__ = ["relativedelta", "MO", "TU", "WE", "TH", "FR", "SA", "SU"] - -class weekday(object): - __slots__ = ["weekday", "n"] - - def __init__(self, weekday, n=None): - self.weekday = weekday - self.n = n - - def __call__(self, n): - if n == self.n: - return self - else: - return self.__class__(self.weekday, n) - - def __eq__(self, other): - try: - if self.weekday != other.weekday or self.n != other.n: - return False - except AttributeError: - return False - return True - - def __repr__(self): - s = ("MO", "TU", "WE", "TH", "FR", "SA", "SU")[self.weekday] - if not self.n: - return s - else: - return "%s(%+d)" % (s, self.n) - -MO, TU, WE, TH, FR, SA, SU = weekdays = tuple([weekday(x) for x in range(7)]) - -class relativedelta: - """ -The relativedelta type is based on the specification of the excelent -work done by M.-A. Lemburg in his mx.DateTime extension. However, -notice that this type does *NOT* implement the same algorithm as -his work. Do *NOT* expect it to behave like mx.DateTime's counterpart. - -There's two different ways to build a relativedelta instance. The -first one is passing it two date/datetime classes: - - relativedelta(datetime1, datetime2) - -And the other way is to use the following keyword arguments: - - year, month, day, hour, minute, second, microsecond: - Absolute information. - - years, months, weeks, days, hours, minutes, seconds, microseconds: - Relative information, may be negative. - - weekday: - One of the weekday instances (MO, TU, etc). These instances may - receive a parameter N, specifying the Nth weekday, which could - be positive or negative (like MO(+1) or MO(-2). Not specifying - it is the same as specifying +1. You can also use an integer, - where 0=MO. - - leapdays: - Will add given days to the date found, if year is a leap - year, and the date found is post 28 of february. - - yearday, nlyearday: - Set the yearday or the non-leap year day (jump leap days). - These are converted to day/month/leapdays information. - -Here is the behavior of operations with relativedelta: - -1) Calculate the absolute year, using the 'year' argument, or the - original datetime year, if the argument is not present. - -2) Add the relative 'years' argument to the absolute year. - -3) Do steps 1 and 2 for month/months. - -4) Calculate the absolute day, using the 'day' argument, or the - original datetime day, if the argument is not present. Then, - subtract from the day until it fits in the year and month - found after their operations. - -5) Add the relative 'days' argument to the absolute day. Notice - that the 'weeks' argument is multiplied by 7 and added to - 'days'. - -6) Do steps 1 and 2 for hour/hours, minute/minutes, second/seconds, - microsecond/microseconds. - -7) If the 'weekday' argument is present, calculate the weekday, - with the given (wday, nth) tuple. wday is the index of the - weekday (0-6, 0=Mon), and nth is the number of weeks to add - forward or backward, depending on its signal. Notice that if - the calculated date is already Monday, for example, using - (0, 1) or (0, -1) won't change the day. - """ - - def __init__(self, dt1=None, dt2=None, - years=0, months=0, days=0, leapdays=0, weeks=0, - hours=0, minutes=0, seconds=0, microseconds=0, - year=None, month=None, day=None, weekday=None, - yearday=None, nlyearday=None, - hour=None, minute=None, second=None, microsecond=None): - if dt1 and dt2: - if not isinstance(dt1, datetime.date) or \ - not isinstance(dt2, datetime.date): - raise TypeError, "relativedelta only diffs datetime/date" - if type(dt1) is not type(dt2): - if not isinstance(dt1, datetime.datetime): - dt1 = datetime.datetime.fromordinal(dt1.toordinal()) - elif not isinstance(dt2, datetime.datetime): - dt2 = datetime.datetime.fromordinal(dt2.toordinal()) - self.years = 0 - self.months = 0 - self.days = 0 - self.leapdays = 0 - self.hours = 0 - self.minutes = 0 - self.seconds = 0 - self.microseconds = 0 - self.year = None - self.month = None - self.day = None - self.weekday = None - self.hour = None - self.minute = None - self.second = None - self.microsecond = None - self._has_time = 0 - - months = (dt1.year*12+dt1.month)-(dt2.year*12+dt2.month) - self._set_months(months) - dtm = self.__radd__(dt2) - if dt1 < dt2: - while dt1 > dtm: - months += 1 - self._set_months(months) - dtm = self.__radd__(dt2) - else: - while dt1 < dtm: - months -= 1 - self._set_months(months) - dtm = self.__radd__(dt2) - delta = dt1 - dtm - self.seconds = delta.seconds+delta.days*86400 - self.microseconds = delta.microseconds - else: - self.years = years - self.months = months - self.days = days+weeks*7 - self.leapdays = leapdays - self.hours = hours - self.minutes = minutes - self.seconds = seconds - self.microseconds = microseconds - self.year = year - self.month = month - self.day = day - self.hour = hour - self.minute = minute - self.second = second - self.microsecond = microsecond - - if type(weekday) is int: - self.weekday = weekdays[weekday] - else: - self.weekday = weekday - - yday = 0 - if nlyearday: - yday = nlyearday - elif yearday: - yday = yearday - if yearday > 59: - self.leapdays = -1 - if yday: - ydayidx = [31,59,90,120,151,181,212,243,273,304,334,366] - for idx, ydays in enumerate(ydayidx): - if yday <= ydays: - self.month = idx+1 - if idx == 0: - self.day = yday - else: - self.day = yday-ydayidx[idx-1] - break - else: - raise ValueError, "invalid year day (%d)" % yday - - self._fix() - - def _fix(self): - if abs(self.microseconds) > 999999: - s = self.microseconds//abs(self.microseconds) - div, mod = divmod(self.microseconds*s, 1000000) - self.microseconds = mod*s - self.seconds += div*s - if abs(self.seconds) > 59: - s = self.seconds//abs(self.seconds) - div, mod = divmod(self.seconds*s, 60) - self.seconds = mod*s - self.minutes += div*s - if abs(self.minutes) > 59: - s = self.minutes//abs(self.minutes) - div, mod = divmod(self.minutes*s, 60) - self.minutes = mod*s - self.hours += div*s - if abs(self.hours) > 23: - s = self.hours//abs(self.hours) - div, mod = divmod(self.hours*s, 24) - self.hours = mod*s - self.days += div*s - if abs(self.months) > 11: - s = self.months//abs(self.months) - div, mod = divmod(self.months*s, 12) - self.months = mod*s - self.years += div*s - if (self.hours or self.minutes or self.seconds or self.microseconds or - self.hour is not None or self.minute is not None or - self.second is not None or self.microsecond is not None): - self._has_time = 1 - else: - self._has_time = 0 - - def _set_months(self, months): - self.months = months - if abs(self.months) > 11: - s = self.months//abs(self.months) - div, mod = divmod(self.months*s, 12) - self.months = mod*s - self.years = div*s - else: - self.years = 0 - - def __radd__(self, other): - if not isinstance(other, datetime.date): - raise TypeError, "unsupported type for add operation" - elif self._has_time and not isinstance(other, datetime.datetime): - other = datetime.datetime.fromordinal(other.toordinal()) - year = (self.year or other.year)+self.years - month = self.month or other.month - if self.months: - assert 1 <= abs(self.months) <= 12 - month += self.months - if month > 12: - year += 1 - month -= 12 - elif month < 1: - year -= 1 - month += 12 - day = min(calendar.monthrange(year, month)[1], - self.day or other.day) - repl = {"year": year, "month": month, "day": day} - for attr in ["hour", "minute", "second", "microsecond"]: - value = getattr(self, attr) - if value is not None: - repl[attr] = value - days = self.days - if self.leapdays and month > 2 and calendar.isleap(year): - days += self.leapdays - ret = (other.replace(**repl) - + datetime.timedelta(days=days, - hours=self.hours, - minutes=self.minutes, - seconds=self.seconds, - microseconds=self.microseconds)) - if self.weekday: - weekday, nth = self.weekday.weekday, self.weekday.n or 1 - jumpdays = (abs(nth)-1)*7 - if nth > 0: - jumpdays += (7-ret.weekday()+weekday)%7 - else: - jumpdays += (ret.weekday()-weekday)%7 - jumpdays *= -1 - ret += datetime.timedelta(days=jumpdays) - return ret - - def __rsub__(self, other): - return self.__neg__().__radd__(other) - - def __add__(self, other): - if not isinstance(other, relativedelta): - raise TypeError, "unsupported type for add operation" - return relativedelta(years=other.years+self.years, - months=other.months+self.months, - days=other.days+self.days, - hours=other.hours+self.hours, - minutes=other.minutes+self.minutes, - seconds=other.seconds+self.seconds, - microseconds=other.microseconds+self.microseconds, - leapdays=other.leapdays or self.leapdays, - year=other.year or self.year, - month=other.month or self.month, - day=other.day or self.day, - weekday=other.weekday or self.weekday, - hour=other.hour or self.hour, - minute=other.minute or self.minute, - second=other.second or self.second, - microsecond=other.second or self.microsecond) - - def __sub__(self, other): - if not isinstance(other, relativedelta): - raise TypeError, "unsupported type for sub operation" - return relativedelta(years=other.years-self.years, - months=other.months-self.months, - days=other.days-self.days, - hours=other.hours-self.hours, - minutes=other.minutes-self.minutes, - seconds=other.seconds-self.seconds, - microseconds=other.microseconds-self.microseconds, - leapdays=other.leapdays or self.leapdays, - year=other.year or self.year, - month=other.month or self.month, - day=other.day or self.day, - weekday=other.weekday or self.weekday, - hour=other.hour or self.hour, - minute=other.minute or self.minute, - second=other.second or self.second, - microsecond=other.second or self.microsecond) - - def __neg__(self): - return relativedelta(years=-self.years, - months=-self.months, - days=-self.days, - hours=-self.hours, - minutes=-self.minutes, - seconds=-self.seconds, - microseconds=-self.microseconds, - leapdays=self.leapdays, - year=self.year, - month=self.month, - day=self.day, - weekday=self.weekday, - hour=self.hour, - minute=self.minute, - second=self.second, - microsecond=self.microsecond) - - def __nonzero__(self): - return not (not self.years and - not self.months and - not self.days and - not self.hours and - not self.minutes and - not self.seconds and - not self.microseconds and - not self.leapdays and - self.year is None and - self.month is None and - self.day is None and - self.weekday is None and - self.hour is None and - self.minute is None and - self.second is None and - self.microsecond is None) - - def __mul__(self, other): - f = float(other) - return relativedelta(years=self.years*f, - months=self.months*f, - days=self.days*f, - hours=self.hours*f, - minutes=self.minutes*f, - seconds=self.seconds*f, - microseconds=self.microseconds*f, - leapdays=self.leapdays, - year=self.year, - month=self.month, - day=self.day, - weekday=self.weekday, - hour=self.hour, - minute=self.minute, - second=self.second, - microsecond=self.microsecond) - - def __eq__(self, other): - if not isinstance(other, relativedelta): - return False - if self.weekday or other.weekday: - if not self.weekday or not other.weekday: - return False - if self.weekday.weekday != other.weekday.weekday: - return False - n1, n2 = self.weekday.n, other.weekday.n - if n1 != n2 and not ((not n1 or n1 == 1) and (not n2 or n2 == 1)): - return False - return (self.years == other.years and - self.months == other.months and - self.days == other.days and - self.hours == other.hours and - self.minutes == other.minutes and - self.seconds == other.seconds and - self.leapdays == other.leapdays and - self.year == other.year and - self.month == other.month and - self.day == other.day and - self.hour == other.hour and - self.minute == other.minute and - self.second == other.second and - self.microsecond == other.microsecond) - - def __ne__(self, other): - return not self.__eq__(other) - - def __div__(self, other): - return self.__mul__(1/float(other)) - - def __repr__(self): - l = [] - for attr in ["years", "months", "days", "leapdays", - "hours", "minutes", "seconds", "microseconds"]: - value = getattr(self, attr) - if value: - l.append("%s=%+d" % (attr, value)) - for attr in ["year", "month", "day", "weekday", - "hour", "minute", "second", "microsecond"]: - value = getattr(self, attr) - if value is not None: - l.append("%s=%s" % (attr, `value`)) - return "%s(%s)" % (self.__class__.__name__, ", ".join(l)) - -# vim:ts=4:sw=4:et |