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Copyright (c) 2003-2010  Gustavo Niemeyer <[email protected]>

This module offers extensions to the standard python 2.3+
datetime module.
s'Gustavo Niemeyer <[email protected]>sPSF Licensei����Nt
relativedeltatMOtTUtWEtTHtFRtSAtSUtweekdaycBs;eZddgZdd�Zd�Zd�Zd�ZRS(RtncCs||_||_dS(N(RR	(tselfRR	((s:/usr/lib/python2.7/site-packages/dateutil/relativedelta.pyt__init__s	cCs*||jkr|S|j|j|�SdS(N(R	t	__class__R(R
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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.
    ic
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