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Add Japanese holidays #6

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171 changes: 171 additions & 0 deletions holidays.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -2224,3 +2224,174 @@ def _populate(self, year):

class NO(Norway):
pass


class Japan(HolidayBase):
# https://en.wikipedia.org/wiki/Public_holidays_in_Japan

def __init__(self, **kwargs):
self.country = 'JP'
HolidayBase.__init__(self, **kwargs)

def _populate(self, year):
if year < 1949 or year > 2050:
raise NotImplementedError

# New Year's Day
self[date(year, 1, 1)] = "元日"

# Coming of Age Day
if year <= 1999:
self[date(year, 1, 15)] = "成人の日"
else:
self[date(year, 1, 1) + rd(weekday=MO(+2))] = "成人の日"

# Foundation Day
self[date(year, 2, 11)] = "建国記念の日"

# Vernal Equinox Day
self[self._vernal_equinox_day(year)] = "春分の日"

# The former Emperor's Birthday, Greenery Day or Showa Day
if year <= 1988:
self[date(year, 4, 29)] = "天皇誕生日"
elif year <= 2006:
self[date(year, 4, 29)] = "みどりの日"
else:
self[date(year, 4, 29)] = "昭和の日"

# Constitution Memorial Day
self[date(year, 5, 3)] = "憲法記念日"

# Greenery Day
if year >= 2007:
self[date(year, 5, 4)] = "みどりの日"

# Children's Day
self[date(year, 5, 5)] = "こどもの日"

# Marine Day
if year >= 1996 and year <= 2002:
self[date(year, 7, 20)] = "海の日"
elif year >= 2003:
self[date(year, 7, 1) + rd(weekday=MO(+3))] = "海の日"

# Mountain Day
if year >= 2016:
self[date(year, 8, 11)] = "山の日"

# Respect for the Aged Day
if year >= 1966 and year <= 2002:
self[date(year, 9, 15)] = "敬老の日"
elif year >= 2003:
self[date(year, 9, 1) + rd(weekday=MO(+3))] = "敬老の日"

# Autumnal Equinox Day
self[self._autumnal_equinox_day(year)] = "秋分の日"

# Health and Sports Day
if year >= 1966 and year <= 1999:
self[date(year, 10, 10)] = "体育の日"
elif year >= 2000:
self[date(year, 10, 1) + rd(weekday=MO(+2))] = "体育の日"

# Culture Day
self[date(year, 11, 3)] = "文化の日"

# Labour Thanksgiving Day
self[date(year, 11, 23)] = "勤労感謝の日"

# The Emperor's Birthday
if year >= 1989:
self[date(year, 12, 23)] = "天皇誕生日"

# A weekday between national holidays becomes a holiday too (国民の休日)
self._add_national_holidays(year)

# Substitute holidays
self._add_substitute_holidays(year)

def _vernal_equinox_day(self, year):
day = 20
if year % 4 == 0:
if year <= 1956:
day = 21
elif year >= 2092:
day = 19
elif year % 4 == 1:
if year <= 1989:
day = 21
elif year % 4 == 2:
if year <= 2022:
day = 21
elif year % 4 == 3:
if year <= 2055:
day = 21
return date(year, 3, day)

def _autumnal_equinox_day(self, year):
day = 22
if year % 4 == 0:
if year <= 2008:
day = 23
elif year % 4 == 1:
if year <= 2041:
day = 23
elif year % 4 == 2:
if year <= 2074:
day = 23
elif year % 4 == 3:
if year <= 1979:
day = 24
else:
day = 23
return date(year, 9, day)

def _add_national_holidays(self, year):
if year in (1993, 1999, 2004, 1988, 1994, 2005, 1989, 1995, 2000, 2006,
1990, 2001, 1991, 1996, 2002):
self[date(year, 5, 4)] = "国民の休日"

if year in (2032, 2049, 2060, 2077, 2088, 2094):
self[date(year, 9, 21)] = "国民の休日"

if year in (2009, 2015, 2026, 2037, 2043, 2054, 2065, 2071, 2099):
self[date(year, 9, 22)] = "国民の休日"

def _add_substitute_holidays(self, year):
table = (
(1, 2, (1978, 1984, 1989, 1995, 2006, 2012, 2017, 2023, 2034, 2040,
2045)),
(1, 16, (1978, 1984, 1989, 1995)),
(2, 12, (1979, 1990, 1996, 2001, 2007, 2018, 2024, 2029, 2035,
2046)),
(3, 21, (1988, 2005, 2016, 2033, 2044, 2050)),
(3, 22, (1982, 1999, 2010, 2027)),
(4, 30, (1973, 1979, 1984, 1990, 2001, 2007, 2012, 2018, 2029,
2035, 2040, 2046)),
(5, 4, (1981, 1987, 1992, 1998)),
(5, 6, (1985, 1991, 1996, 2002, 2013, 2019, 2024, 2030, 2041, 2047,
2008, 2014, 2025, 2031, 2036, 2042, 2009, 2015, 2020, 2026,
2037, 2043, 2048)),
(7, 21, (1997,)),
(8, 12, (2019, 2024, 2030, 2041, 2047)),
(9, 16, (1974, 1985, 1991, 1996, 2002)),
(9, 23, (2024,)),
(9, 24, (1973, 1984, 1990, 2001, 2007, 2018, 2029, 2035, 2046)),
(10, 11, (1976, 1982, 1993, 1999)),
(11, 4, (1974, 1985, 1991, 1996, 2002, 2013, 2019, 2024, 2030,
2041, 2047)),
(11, 24, (1975, 1980, 1986, 1997, 2003, 2008, 2014, 2025, 2031,
2036, 2042)),
(12, 24, (1990, 2001, 2007, 2012, 2018)),
)
for holiday in table:
month = holiday[0]
day = holiday[1]
years = holiday[2]
if year in years:
self[date(year, month, day)] = "振替休日"


class JP(Japan):
pass
119 changes: 119 additions & 0 deletions tests.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -3000,5 +3000,124 @@ def test_not_holiday(self):
self.assertFalse('2016-12-28' in self.holidays_with_sundays)


class TestJapan(unittest.TestCase):
def setUp(self):
self.holidays = holidays.Japan(observed=False)

def test_new_years_day(self):
self.assertTrue(date(1949, 1, 1) in self.holidays)
self.assertTrue(date(2017, 1, 1) in self.holidays)
self.assertTrue(date(2050, 1, 1) in self.holidays)

def test_coming_of_age(self):
self.assertTrue(date(1999, 1, 15)in self.holidays)
self.assertTrue(date(2000, 1, 10)in self.holidays)
self.assertTrue(date(2017, 1, 9)in self.holidays)
self.assertTrue(date(2030, 1, 14)in self.holidays)
self.assertTrue(date(2050, 1, 10)in self.holidays)

self.assertFalse(date(2000, 1, 15)in self.holidays)
self.assertFalse(date(2017, 1, 15)in self.holidays)
self.assertFalse(date(2030, 1, 15)in self.holidays)

def test_foundation_day(self):
self.assertTrue(date(1949, 2, 11) in self.holidays)
self.assertTrue(date(2017, 2, 11) in self.holidays)
self.assertTrue(date(2050, 2, 11) in self.holidays)

def test_vernal_equinox_day(self):
self.assertTrue(date(1960, 3, 20) in self.holidays)
self.assertTrue(date(1970, 3, 21) in self.holidays)
self.assertTrue(date(1980, 3, 20) in self.holidays)
self.assertTrue(date(1990, 3, 21) in self.holidays)
self.assertTrue(date(2000, 3, 20) in self.holidays)
self.assertTrue(date(2010, 3, 21) in self.holidays)
self.assertTrue(date(2017, 3, 20) in self.holidays)
self.assertTrue(date(2020, 3, 20) in self.holidays)
self.assertTrue(date(2030, 3, 20) in self.holidays)
self.assertTrue(date(2040, 3, 20) in self.holidays)

def test_showa_day(self):
self.assertTrue(date(1950, 4, 29) in self.holidays)
self.assertTrue(date(1990, 4, 29) in self.holidays)
self.assertTrue(date(2010, 4, 29) in self.holidays)

def test_constitution_memorial_day(self):
self.assertTrue(date(1950, 5, 3) in self.holidays)
self.assertTrue(date(2000, 5, 3) in self.holidays)
self.assertTrue(date(2050, 5, 3) in self.holidays)

def test_greenery_day(self):
self.assertFalse(date(1950, 5, 4) in self.holidays)
self.assertTrue(date(2007, 5, 4) in self.holidays)
self.assertTrue(date(2050, 5, 4) in self.holidays)

def test_childrens_day(self):
self.assertTrue(date(1950, 5, 5) in self.holidays)
self.assertTrue(date(2000, 5, 5) in self.holidays)
self.assertTrue(date(2050, 5, 5) in self.holidays)

def test_marine_day(self):
self.assertFalse(date(1950, 7, 20) in self.holidays)
self.assertTrue(date(2000, 7, 20) in self.holidays)
self.assertTrue(date(2003, 7, 21) in self.holidays)
self.assertTrue(date(2017, 7, 17) in self.holidays)
self.assertTrue(date(2050, 7, 18) in self.holidays)

def test_mountain_day(self):
self.assertFalse(date(1950, 8, 11) in self.holidays)
self.assertFalse(date(2015, 8, 11) in self.holidays)
self.assertTrue(date(2016, 8, 11) in self.holidays)
self.assertTrue(date(2017, 8, 11) in self.holidays)
self.assertTrue(date(2050, 8, 11) in self.holidays)

def test_respect_for_the_aged_day(self):
self.assertFalse(date(1965, 9, 15) in self.holidays)
self.assertTrue(date(1966, 9, 15) in self.holidays)
self.assertTrue(date(2002, 9, 15) in self.holidays)
self.assertTrue(date(2003, 9, 15) in self.holidays)
self.assertFalse(date(2004, 9, 15) in self.holidays)
self.assertTrue(date(2004, 9, 20) in self.holidays)
self.assertTrue(date(2017, 9, 18) in self.holidays)
self.assertTrue(date(2050, 9, 19) in self.holidays)

def test_autumnal_equinox_day(self):
self.assertTrue(date(2000, 9, 23) in self.holidays)
self.assertTrue(date(2010, 9, 23) in self.holidays)
self.assertTrue(date(2017, 9, 23) in self.holidays)
self.assertTrue(date(2020, 9, 22) in self.holidays)
self.assertTrue(date(2030, 9, 23) in self.holidays)

def test_health_and_sports_day(self):
self.assertFalse(date(1965, 10, 10) in self.holidays)
self.assertTrue(date(1966, 10, 10) in self.holidays)
self.assertTrue(date(1999, 10, 10) in self.holidays)
self.assertFalse(date(2000, 10, 10) in self.holidays)
self.assertTrue(date(2000, 10, 9) in self.holidays)
self.assertTrue(date(2017, 10, 9) in self.holidays)
self.assertTrue(date(2050, 10, 10) in self.holidays)

def test_culture_day(self):
self.assertTrue(date(1950, 11, 3) in self.holidays)
self.assertTrue(date(2000, 11, 3) in self.holidays)
self.assertTrue(date(2050, 11, 3) in self.holidays)

def test_labour_thanks_giving_day(self):
self.assertTrue(date(1950, 11, 23) in self.holidays)
self.assertTrue(date(2000, 11, 23) in self.holidays)
self.assertTrue(date(2050, 11, 23) in self.holidays)

def test_emperors_birthday(self):
self.assertTrue(date(1989, 12, 23) in self.holidays)
self.assertTrue(date(2017, 12, 23) in self.holidays)
self.assertTrue(date(2050, 12, 23) in self.holidays)

def test_invalid_years(self):
self.assertRaises(NotImplementedError,
lambda: date(1948, 1, 1) in self.holidays)
self.assertRaises(NotImplementedError,
lambda: date(2051, 1, 1) in self.holidays)


if __name__ == "__main__":
unittest.main()