119 lines
4.2 KiB
Python
119 lines
4.2 KiB
Python
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# -*- coding: utf-8 -*-
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# python-holidays
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# ---------------
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# A fast, efficient Python library for generating country, province and state
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# specific sets of holidays on the fly. It aims to make determining whether a
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# specific date is a holiday as fast and flexible as possible.
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#
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# Author: ryanss <ryanssdev@icloud.com> (c) 2014-2017
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# dr-prodigy <maurizio.montel@gmail.com> (c) 2017-2020
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# Website: https://github.com/dr-prodigy/python-holidays
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# License: MIT (see LICENSE file)
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from datetime import date
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from dateutil.easter import easter
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from dateutil.relativedelta import relativedelta as rd
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from holidays.constants import JAN, MAY, DEC
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from holidays.constants import MON, THU, FRI, SUN
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from holidays.holiday_base import HolidayBase
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class Norway(HolidayBase):
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"""
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Norwegian holidays.
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Note that holidays falling on a sunday is "lost",
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it will not be moved to another day to make up for the collision.
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In Norway, ALL sundays are considered a holiday (https://snl.no/helligdag).
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Initialize this class with include_sundays=False
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to not include sundays as a holiday.
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Primary sources:
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https://lovdata.no/dokument/NL/lov/1947-04-26-1
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https://no.wikipedia.org/wiki/Helligdager_i_Norge
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https://www.timeanddate.no/merkedag/norge/
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"""
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def __init__(self, include_sundays=True, **kwargs):
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"""
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:param include_sundays: Whether to consider sundays as a holiday
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(which they are in Norway)
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:param kwargs:
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"""
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self.country = "NO"
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self.include_sundays = include_sundays
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HolidayBase.__init__(self, **kwargs)
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def _populate(self, year):
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# Add all the sundays of the year before adding the "real" holidays
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if self.include_sundays:
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first_day_of_year = date(year, JAN, 1)
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first_sunday_of_year = \
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first_day_of_year + \
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rd(days=SUN - first_day_of_year.weekday())
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cur_date = first_sunday_of_year
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while cur_date < date(year + 1, 1, 1):
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assert cur_date.weekday() == SUN
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self[cur_date] = "Søndag"
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cur_date += rd(days=7)
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# ========= Static holidays =========
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self[date(year, JAN, 1)] = "Første nyttårsdag"
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# Source: https://lovdata.no/dokument/NL/lov/1947-04-26-1
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if year >= 1947:
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self[date(year, MAY, 1)] = "Arbeidernes dag"
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self[date(year, MAY, 17)] = "Grunnlovsdag"
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# According to https://no.wikipedia.org/wiki/F%C3%B8rste_juledag,
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# these dates are only valid from year > 1700
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# Wikipedia has no source for the statement, so leaving this be for now
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self[date(year, DEC, 25)] = "Første juledag"
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self[date(year, DEC, 26)] = "Andre juledag"
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# ========= Moving holidays =========
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# NOTE: These are probably subject to the same > 1700
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# restriction as the above dates. The only source I could find for how
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# long Easter has been celebrated in Norway was
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# https://www.hf.uio.no/ikos/tjenester/kunnskap/samlinger/norsk-folkeminnesamling/livs-og-arshoytider/paske.html
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# which says
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# "(...) has been celebrated for over 1000 years (...)" (in Norway)
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e = easter(year)
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maundy_thursday = e - rd(days=3)
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good_friday = e - rd(days=2)
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resurrection_sunday = e
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easter_monday = e + rd(days=1)
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ascension_thursday = e + rd(days=39)
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pentecost = e + rd(days=49)
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pentecost_day_two = e + rd(days=50)
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assert maundy_thursday.weekday() == THU
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assert good_friday.weekday() == FRI
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assert resurrection_sunday.weekday() == SUN
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assert easter_monday.weekday() == MON
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assert ascension_thursday.weekday() == THU
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assert pentecost.weekday() == SUN
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assert pentecost_day_two.weekday() == MON
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self[maundy_thursday] = "Skjærtorsdag"
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self[good_friday] = "Langfredag"
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self[resurrection_sunday] = "Første påskedag"
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self[easter_monday] = "Andre påskedag"
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self[ascension_thursday] = "Kristi himmelfartsdag"
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self[pentecost] = "Første pinsedag"
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self[pentecost_day_two] = "Andre pinsedag"
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class NO(Norway):
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pass
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class NOR(Norway):
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pass
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