rrule.cpython-310.pyc // MEDIA VIEWER

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  10  The rrule module offers a small, complete, and very fast, implementation of
  11  the recurrence rules documented in the
  12  `iCalendar RFC <https://tools.ietf.org/html/rfc5545>`_,
  13  including support for caching of results.
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  25      Decorator for rruleset methods which may invalidate the
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  61  |D]}q|jS)z� Returns the number of recurrences in this set. It will have go
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  63  zrrulebase.countcCsZ|jr|j}n|}d}|r|D]}||kr|S|}q|S|D]}||kr(|S|}q|S)z� Returns the last recurrence before the given datetime instance. The
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  68  }||kr&|SqdS)z� Returns the first recurrence after the given datetime instance. The
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  70              inc=True, if dt itself is an occurrence, it will be returned.  Nr�)rBr�r�rqrprFrFrG�after�s���zrrulebase.afterNccsj�|jr|j}n|}|rdd�}ndd�}d}|D]}|||�r2|dur/|d7}||kr/dS|VqdS)aH
  71          Generator which yields up to `count` recurrences after the given
  72          datetime instance, equivalent to `after`.
  73  
  74          :param dt:
  75              The datetime at which to start generating recurrences.
  76  
  77          :param count:
  78              The maximum number of recurrences to generate. If `None` (default),
  79              dates are generated until the recurrence rule is exhausted.
  80  
  81          :param inc:
  82              If `dt` is an instance of the rule and `inc` is `True`, it is
  83              included in the output.
  84  
  85          :yields: Yields a sequence of `datetime` objects.
  86          cSs||kSrHrF�ZdcZdtcrFrFrG�<lambda>�z"rrulebase.xafter.<locals>.<lambda>cSs||kSrHrFr�rFrFrGr�r�rNr	r�)rBr�r�r�rq�comprC�drFrFrG�xafter�s"�
  87  
  88  ��zrrulebase.xafterr	c	Cs�|jr|j}n|}d}g}|r0|D]}||kr|S|s(||kr'd}|�|�q|�|�q|S|D]}||kr;|S|sI||krHd}|�|�q2|�|�q2|S)a Returns all the occurrences of the rrule between after and before.
  89          The inc keyword defines what happens if after and/or before are
  90          themselves occurrences. With inc=True, they will be included in the
  91          list, if they are found in the recurrence set. FT)r`r]rn)	rBr�r�r�r�rq�started�lrprFrFrG�betweens8�
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 102  aP
 103      That's the base of the rrule operation. It accepts all the keywords
 104      defined in the RFC as its constructor parameters (except byday,
 105      which was renamed to byweekday) and more. The constructor prototype is::
 106  
 107              rrule(freq)
 108  
 109      Where freq must be one of YEARLY, MONTHLY, WEEKLY, DAILY, HOURLY, MINUTELY,
 110      or SECONDLY.
 111  
 112      .. note::
 113          Per RFC section 3.3.10, recurrence instances falling on invalid dates
 114          and times are ignored rather than coerced:
 115  
 116              Recurrence rules may generate recurrence instances with an invalid
 117              date (e.g., February 30) or nonexistent local time (e.g., 1:30 AM
 118              on a day where the local time is moved forward by an hour at 1:00
 119              AM).  Such recurrence instances MUST be ignored and MUST NOT be
 120              counted as part of the recurrence set.
 121  
 122          This can lead to possibly surprising behavior when, for example, the
 123          start date occurs at the end of the month:
 124  
 125          >>> from dateutil.rrule import rrule, MONTHLY
 126          >>> from datetime import datetime
 127          >>> start_date = datetime(2014, 12, 31)
 128          >>> list(rrule(freq=MONTHLY, count=4, dtstart=start_date))
 129          ... # doctest: +NORMALIZE_WHITESPACE
 130          [datetime.datetime(2014, 12, 31, 0, 0),
 131           datetime.datetime(2015, 1, 31, 0, 0),
 132           datetime.datetime(2015, 3, 31, 0, 0),
 133           datetime.datetime(2015, 5, 31, 0, 0)]
 134  
 135      Additionally, it supports the following keyword arguments:
 136  
 137      :param dtstart:
 138          The recurrence start. Besides being the base for the recurrence,
 139          missing parameters in the final recurrence instances will also be
 140          extracted from this date. If not given, datetime.now() will be used
 141          instead.
 142      :param interval:
 143          The interval between each freq iteration. For example, when using
 144          YEARLY, an interval of 2 means once every two years, but with HOURLY,
 145          it means once every two hours. The default interval is 1.
 146      :param wkst:
 147          The week start day. Must be one of the MO, TU, WE constants, or an
 148          integer, specifying the first day of the week. This will affect
 149          recurrences based on weekly periods. The default week start is got
 150          from calendar.firstweekday(), and may be modified by
 151          calendar.setfirstweekday().
 152      :param count:
 153          If given, this determines how many occurrences will be generated.
 154  
 155          .. note::
 156              As of version 2.5.0, the use of the keyword ``until`` in conjunction
 157              with ``count`` is deprecated, to make sure ``dateutil`` is fully
 158              compliant with `RFC-5545 Sec. 3.3.10 <https://tools.ietf.org/
 159              html/rfc5545#section-3.3.10>`_. Therefore, ``until`` and ``count``
 160              **must not** occur in the same call to ``rrule``.
 161      :param until:
 162          If given, this must be a datetime instance specifying the upper-bound
 163          limit of the recurrence. The last recurrence in the rule is the greatest
 164          datetime that is less than or equal to the value specified in the
 165          ``until`` parameter.
 166  
 167          .. note::
 168              As of version 2.5.0, the use of the keyword ``until`` in conjunction
 169              with ``count`` is deprecated, to make sure ``dateutil`` is fully
 170              compliant with `RFC-5545 Sec. 3.3.10 <https://tools.ietf.org/
 171              html/rfc5545#section-3.3.10>`_. Therefore, ``until`` and ``count``
 172              **must not** occur in the same call to ``rrule``.
 173      :param bysetpos:
 174          If given, it must be either an integer, or a sequence of integers,
 175          positive or negative. Each given integer will specify an occurrence
 176          number, corresponding to the nth occurrence of the rule inside the
 177          frequency period. For example, a bysetpos of -1 if combined with a
 178          MONTHLY frequency, and a byweekday of (MO, TU, WE, TH, FR), will
 179          result in the last work day of every month.
 180      :param bymonth:
 181          If given, it must be either an integer, or a sequence of integers,
 182          meaning the months to apply the recurrence to.
 183      :param bymonthday:
 184          If given, it must be either an integer, or a sequence of integers,
 185          meaning the month days to apply the recurrence to.
 186      :param byyearday:
 187          If given, it must be either an integer, or a sequence of integers,
 188          meaning the year days to apply the recurrence to.
 189      :param byeaster:
 190          If given, it must be either an integer, or a sequence of integers,
 191          positive or negative. Each integer will define an offset from the
 192          Easter Sunday. Passing the offset 0 to byeaster will yield the Easter
 193          Sunday itself. This is an extension to the RFC specification.
 194      :param byweekno:
 195          If given, it must be either an integer, or a sequence of integers,
 196          meaning the week numbers to apply the recurrence to. Week numbers
 197          have the meaning described in ISO8601, that is, the first week of
 198          the year is that containing at least four days of the new year.
 199      :param byweekday:
 200          If given, it must be either an integer (0 == MO), a sequence of
 201          integers, one of the weekday constants (MO, TU, etc), or a sequence
 202          of these constants. When given, these variables will define the
 203          weekdays where the recurrence will be applied. It's also possible to
 204          use an argument n for the weekday instances, which will mean the nth
 205          occurrence of this weekday in the period. For example, with MONTHLY,
 206          or with YEARLY and BYMONTH, using FR(+1) in byweekday will specify the
 207          first friday of the month where the recurrence happens. Notice that in
 208          the RFC documentation, this is specified as BYDAY, but was renamed to
 209          avoid the ambiguity of that keyword.
 210      :param byhour:
 211          If given, it must be either an integer, or a sequence of integers,
 212          meaning the hours to apply the recurrence to.
 213      :param byminute:
 214          If given, it must be either an integer, or a sequence of integers,
 215          meaning the minutes to apply the recurrence to.
 216      :param bysecond:
 217          If given, it must be either an integer, or a sequence of integers,
 218          meaning the seconds to apply the recurrence to.
 219      :param cache:
 220          If given, it must be a boolean value specifying to enable or disable
 221          caching of results. If you will use the same rrule instance multiple
 222          times, enabling caching will improve the performance considerably.
 223       Nr	Fcsttt|��|�|s&|r|jrtjj|jd�jdd�}ntj��jdd�}nt|tj�s5tj�|�	��}n|jdd�}||_
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 358  �\}3}n	t,||d�\}3}t,||3d�\},}|,�r�||,7}t,|d�\},}|,�r�||,7}d}+|�r�||v�r�|�r�||v�r�|�r�||v�r�d}/n�q�|/�s�t;d��||||�}|+�r7|dk�r7t<�=||�d}4||4k�r7||4k�r1||48}|d7}|dk�r$d}|d7}|t/j7k�r$||_6dSt<�=||�d}4||4k�s|�||�q�)NrFrTFr	cSsg|]}|dur|�qSrHrFrOrFrFrGr�Zs�zrrule._iter.<locals>.<listcomp>r+r%r&�r�)r�r�r�i�r-i�zCInvalid combination of interval and byhour resulting in empty rule.iQii�QzMInvalid combination of interval, byhour and byminute resulting in empty rule.��
 359  )>r�r�r�r�r�r�r�r�r�r�r�r�r�r�r�r�r��	_iterinfo�rebuildr�ydaysetr�mdaysetr�wdaysetr�ddaysetrrrr��htimeset�mtimeset�stimesetr��mmask�wnomask�wdaymask�	nwdaymask�
 360  eastermask�mdaymask�	nmdaymask�yearlen�nextyearlen�divmodrmr}r��dater��yearordinal�combinernr�ra�MAXYEAR�_rrule__mod_distancerrr?r��
 361  monthrange)5rB�yearr�r�r�r�r�rZyearday�_r�r�r�r�r�r�r�r�r�r�Zbynmonthdayr�r�r�r��iiZ	getdaysetZtimesetZ
 362  gettimeset�totalr�Zdaysetry�end�filteredrpZposlistr�ZdayposZtimeposr�r
 363  rZfixday�div�mod�ndaysZvalidZrep_raterrZnhoursZnminutesZdaysinmonthrFrFrGres
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 392  ��zrrule._itercCslt�}t|t�r|f}|D]}t|j|�}|dks$t|||�ddkr)|�|�q
 393  t|�dkr4td��|S)a
 394          If a `BYXXX` sequence is passed to the constructor at the same level as
 395          `FREQ` (e.g. `FREQ=HOURLY,BYHOUR={2,4,7},INTERVAL=3`), there are some
 396          specifications which cannot be reached given some starting conditions.
 397  
 398          This occurs whenever the interval is not coprime with the base of a
 399          given unit and the difference between the starting position and the
 400          ending position is not coprime with the greatest common denominator
 401          between the interval and the base. For example, with a FREQ of hourly
 402          starting at 17:00 and an interval of 4, the only valid values for
 403          BYHOUR would be {21, 1, 5, 9, 13, 17}, because 4 and 24 are not
 404          coprime.
 405  
 406          :param start:
 407              Specifies the starting position.
 408          :param byxxx:
 409              An iterable containing the list of allowed values.
 410          :param base:
 411              The largest allowable value for the specified frequency (e.g.
 412              24 hours, 60 minutes).
 413  
 414          This does not preserve the type of the iterable, returning a set, since
 415          the values should be unique and the order is irrelevant, this will
 416          speed up later lookups.
 417  
 418          In the event of an empty set, raises a :exception:`ValueError`, as this
 419          results in an empty rrule.
 420          r	rz+Invalid rrule byxxx generates an empty set.)	r�rsrrr�rr�rmr?)rBryr�r�Zcset�numZi_gcdrFrFrGZ__construct_bysets
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 422  �zrrule.__construct_bysetcCsLd}td|d�D]}t||j|�\}}||7}||vr#||fSq	dS)a�
 423          Calculates the next value in a sequence where the `FREQ` parameter is
 424          specified along with a `BYXXX` parameter at the same "level"
 425          (e.g. `HOURLY` specified with `BYHOUR`).
 426  
 427          :param value:
 428              The old value of the component.
 429          :param byxxx:
 430              The `BYXXX` set, which should have been generated by
 431              `rrule._construct_byset`, or something else which checks that a
 432              valid rule is present.
 433          :param base:
 434              The largest allowable value for the specified frequency (e.g.
 435              24 hours, 60 minutes).
 436  
 437          If a valid value is not found after `base` iterations (the maximum
 438          number before the sequence would start to repeat), this raises a
 439          :exception:`ValueError`, as no valid values were found.
 440  
 441          This returns a tuple of `divmod(n*interval, base)`, where `n` is the
 442          smallest number of `interval` repetitions until the next specified
 443          value in `byxxx` is found.
 444          rr	N)rrr�)rBr�r�r�ZaccumulatorrrrFrFrGZ__mod_distance7s��zrrule.__mod_distance)Nr	NNNNNNNNNNNNNF)rIrJrKrLrAr�r�rer�rrMrFrFrDrGr
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 481  |
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 484  n||dd}
 485  |
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 487  |d7}
 488  ||
 489  k�r(|k�r0n�q�d|j&|
 490  <�q�q�|j'�rYdg|jd|_(t)�)|���|j	}|j'D]
 491  }d|j(||<�qN||_||_ dS)Nr<r	rr&r"������4)*r
 492  rr��isleapr
 493  rr�r
 494  r�rrr�M365MASKr�MDAY365MASKr�NMDAY365MASKr	�WDAYMASKr�	M365RANGEr �M366MASK�MDAY366MASK�NMDAY366MASK�	M366RANGEr�rr�rrr�rr�rr�rnrrr�rr�)rBrr��rrZ	firstydayr�Zno1wkstZ	firstwkstZwyearlenrrZnumweeksrCrprrZlyearweekdayZlno1wkstZlyearlenZ	lnumweeks�ranges�firstr�Zeyday�offsetrFrFrGr�cs�
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 511  )rBrr�r�rFrFrGr��sz_iterinfo.ydaysetcCsHdg|j}|j|d|d�\}}t||�D]}|||<q|||fS�Nr	)r
 512  r r)rBrr�r��dsetryrrprFrFrGr��s
 513  
 514  
 515  z_iterinfo.mdaysetcCsjdg|jd}t�|||���|j}|}td�D]}|||<|d7}|j||jjkr/nq|||fS)Nr&r	)	r
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 517  r�rrrr
 518  r�)rBrr�r�r6rpryrrrFrFrGr��s�
 519  z_iterinfo.wdaysetcCs:dg|j}t�|||���|j}|||<|||dfSr5)r
 520  r�r
 521  r�r)rBrr�r�r6rprFrFrGr��sz_iterinfo.ddaysetc
 522  CsHg}|j}|jD]}|jD]}|�tj||||jd��q
 523  q|��|S�Nr�)r
 524  r�r�rnr�r�r�r��rBr�r�r�Ztsetr0rFrFrGrs
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 527  ��z_iterinfo.htimesetc	Cs<g}|j}|jD]}|�tj||||jd��q|��|Sr7)r
 528  r�rnr�r�r�r�r8rFrFrGrs
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 533  r�csjeZdZdZGdd�de�Zd�fdd�	Zedd��Zed	d
 534  ��Z	edd��Z
 535  ed
 536  d��Zdd�Z�Z
 537  S)raL The rruleset type allows more complex recurrence setups, mixing
 538      multiple rules, dates, exclusion rules, and exclusion dates. The type
 539      constructor takes the following keyword arguments:
 540  
 541      :param cache: If True, caching of results will be enabled, improving
 542                    performance of multiple queries considerably. c@s@eZdZdd�Zdd�ZeZdd�Zdd�Zd	d
 543  �Zdd�Z	d
 544  S)zrruleset._genitemcCs<zt|�|_|�|�Wn	tyYnw||_||_dSrH)rr�rnro�genlistrq)rBr9rqrFrFrGrA$s
 545  �
 546  zrruleset._genitem.__init__cCs`z	t|j�|_WdSty/|jd|ur t�|j�YdS|j�|�t�|j�YdSwr4)	rrqr�ror9�heapq�heappop�remove�heapifyrgrFrFrG�__next__-s�zrruleset._genitem.__next__cCs|j|jkSrH�r��rB�otherrFrFrG�__lt__9�zrruleset._genitem.__lt__cCs|j|jkSrHr?r@rFrFrG�__gt__<rCzrruleset._genitem.__gt__cCs|j|jkSrHr?r@rFrFrG�__eq__?rCzrruleset._genitem.__eq__cCs|j|jkSrHr?r@rFrFrG�__ne__BrCzrruleset._genitem.__ne__N)
 547  rIrJrKrAr>�nextrBrDrErFrFrFrFrG�_genitem#s	
 548  rHFcs,tt|��|�g|_g|_g|_g|_dSrH)r@rrA�_rrule�_rdate�_exrule�_exdaterbrDrFrGrAEs
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 550  zrruleset.__init__cC�|j�|�dS)z\ Include the given :py:class:`rrule` instance in the recurrence set
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 552  rFrFrGr
 553  L�zrruleset.rrulecCrM)z_ Include the given :py:class:`datetime` instance in the recurrence
 554              set generation. N)rJrn)rB�rdaterFrFrGrORrNzrruleset.rdatecCrM)z� Include the given rrule instance in the recurrence set exclusion
 555              list. Dates which are part of the given recurrence rules will not
 556              be generated, even if some inclusive rrule or rdate matches them.
 557          N)rKrn)rB�exrulerFrFrGrPXszrruleset.exrulecCrM)z� Include the given datetime instance in the recurrence set
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 559              even if some inclusive rrule or rdate matches them. N)rLrn)rB�exdaterFrFrGrQ`szrruleset.exdateccs`�g}|j��|�|t|j��dd�|jD�D]}|�||�qg}|j��|�|t|j��dd�|jD�D]}|�||�q:d}d}t�|�t�|�|r�|d}|r^||j	kr�|r�|d|kr�|d}t
 560  |�|r||d|ur|t�||�|r�|d|ksf|r�||dkr�|d7}|j	V|j	}t
 561  |�|r�|d|ur�t�||�|sS||_dS)NcSr�rF�rdrOrFrFrGr�kr�z"rruleset._iter.<locals>.<listcomp>cSr�rFrRrOrFrFrGr�pr�rr	)
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 568  rOrPrQrerMrFrFrDrGrs"
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 573  d�Zddddddd	d
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 577  Ze
 578  ZeZeZeZeZeZeZeZeZeZdd�Zdd�Zdd�Zdd�ZeZ				d!dd�Zdd�Z 								d"dd�Z!dd �Z"dS)#�	_rrulestra� Parses a string representation of a recurrence rule or set of
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 580  
 581      :param s:
 582          Required, a string defining one or more recurrence rules.
 583  
 584      :param dtstart:
 585          If given, used as the default recurrence start if not specified in the
 586          rule string.
 587  
 588      :param cache:
 589          If set ``True`` caching of results will be enabled, improving
 590          performance of multiple queries considerably.
 591  
 592      :param unfold:
 593          If set ``True`` indicates that a rule string is split over more
 594          than one line and should be joined before processing.
 595  
 596      :param forceset:
 597          If set ``True`` forces a :class:`dateutil.rrule.rruleset` to
 598          be returned.
 599  
 600      :param compatible:
 601          If set ``True`` forces ``unfold`` and ``forceset`` to be ``True``.
 602  
 603      :param ignoretz:
 604          If set ``True``, time zones in parsed strings are ignored and a naive
 605          :class:`datetime.datetime` object is returned.
 606  
 607      :param tzids:
 608          If given, a callable or mapping used to retrieve a
 609          :class:`datetime.tzinfo` from a string representation.
 610          Defaults to :func:`dateutil.tz.gettz`.
 611  
 612      :param tzinfos:
 613          Additional time zone names / aliases which may be present in a string
 614          representation.  See :func:`dateutil.parser.parse` for more
 615          information.
 616  
 617      :return:
 618          Returns a :class:`dateutil.rrule.rruleset` or
 619          :class:`dateutil.rrule.rrule`
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