Add Vanuatu holidays (#1423)

* adding vanuatu

* comment changes

* father lini day

README.rst

@@ -109,7 +109,7 @@ Available Countries
 .. _ISO 639-1 code: https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes
 .. _ISO 639-2 code: https://en.wikipedia.org/wiki/List_of_ISO_639-2_codes
 
-We currently support 131 country codes. The standard way to refer to a country
+We currently support 132 country codes. The standard way to refer to a country
 is by using its `ISO 3166-1 alpha-2 code`_, the same used for domain names, and
 for a subdivision its `ISO 3166-2 code`_. Some of the countries support more
 than one language for holiday names output.
@@ -637,6 +637,10 @@ The list of supported countries, their subdivisions and supported languages
      - UZ
      -
      -
+   * - Vanuatu
+     - VU
+     -
+     -
    * - Vatican City
      - VA
      -

holidays/countries/__init__.py

@@ -142,6 +142,7 @@
 from .united_states_virgin_islands import UnitedStatesVirginIslands, VI, VIR, HolidaysVI
 from .uruguay import Uruguay, UY, URY
 from .uzbekistan import Uzbekistan, UZ, UZB
+from .vanuatu import Vanuatu, VU, VTU
 from .vatican_city import VaticanCity, VA, VAT
 from .venezuela import Venezuela, VE, VEN
 from .vietnam import Vietnam, VN, VNM

holidays/countries/vanuatu.py

@@ -0,0 +1,87 @@
+#  python-holidays
+#  ---------------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/dr-prodigy/python-holidays
+#  License: MIT (see LICENSE file)
+
+from holidays.calendars.gregorian import FEB, MAR, JUL, OCT, NOV
+from holidays.holiday_base import HolidayBase
+from holidays.holiday_groups import ChristianHolidays, InternationalHolidays
+
+
+class Vanuatu(HolidayBase, ChristianHolidays, InternationalHolidays):
+    """
+    https://en.wikipedia.org/wiki/Public_holidays_in_Vanuatu
+    https://www.timeanddate.com/holidays/vanuatu/
+    https://www.gov.vu/index.php/events/holidays
+    """
+
+    country = "VU"
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        super().__init__(*args, **kwargs)
+
+    def _populate(self, year):
+        # On 30 July 1980, Vanuatu gained independence from Britain and France.
+        if year <= 1980:
+            return None
+
+        super()._populate(year)
+
+        # New Years Day.
+        self._add_new_years_day("New Year's Day")
+
+        if year >= 1991:
+            # Father Lini Day
+            self._add_holiday("Father Lini Day", FEB, 21)
+
+        # Custom Chief's Day
+        self._add_holiday("Custom Chief's Day", MAR, 5)
+
+        # Good Friday
+        self._add_good_friday("Good Friday")
+
+        # Easter Monday
+        self._add_easter_monday("Easter Monday")
+
+        # Labour Day
+        self._add_labor_day("Labour Day")
+
+        # Ascension Day
+        self._add_ascension_thursday("Ascension Day")
+
+        # Children's Day
+        self._add_holiday("Children's Day", JUL, 24)
+
+        # Independence Day
+        self._add_holiday("Independence Day", JUL, 30)
+
+        # Assumption Day
+        self._add_assumption_of_mary_day("Assumption Day")
+
+        # Constitution Day
+        self._add_holiday("Constitution Day", OCT, 5)
+
+        # National Unity Day
+        self._add_holiday("National Unity Day", NOV, 29)
+
+        # Christmas Day
+        self._add_christmas_day("Christmas Day")
+
+        # Family day
+        self._add_christmas_day_two("Family Day")
+
+
+class VU(Vanuatu):
+    pass
+
+
+class VTU(Vanuatu):
+    pass

holidays/registry.py

@@ -148,6 +148,7 @@
     "united_states": ("UnitedStates", "US", "USA"),
     "uruguay": ("Uruguay", "UY", "URY"),
     "uzbekistan": ("Uzbekistan", "UZ", "UZB"),
+    "vanuatu": ("Vanuatu", "VU", "VTU"),
     "vatican_city": ("VaticanCity", "VA", "VAT"),
     "venezuela": ("Venezuela", "VE", "VEN"),
     "vietnam": ("Vietnam", "VN", "VNM"),

tests/countries/test_vanuatu.py

@@ -0,0 +1,49 @@
+#  python-holidays
+#  ---------------
+#  A fast, efficient Python library for generating country, province and state
+#  specific sets of holidays on the fly. It aims to make determining whether a
+#  specific date is a holiday as fast and flexible as possible.
+#
+#  Authors: dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/dr-prodigy/python-holidays
+#  License: MIT (see LICENSE file)
+
+from holidays.countries.vanuatu import Vanuatu, VU, VTU
+from tests.common import TestCase
+
+
+class TestVanuatu(TestCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass(Vanuatu)
+
+    def test_country_aliases(self):
+        self.assertCountryAliases(Vanuatu, VU, VTU)
+
+    def test_no_holidays(self):
+        self.assertNoHolidays(Vanuatu(years=1980))
+
+    def test_father_lini_day(self):
+        name = "Father Lini Day"
+        self.assertHolidayName(name, (f"{year}-02-21" for year in range(1991, 2050)))
+        self.assertNoHolidayName(name, Vanuatu(years=range(1981, 1991)))
+        self.assertNoHoliday(f"{year}-02-21" for year in range(1981, 1991))
+
+    def test_2022(self):
+        self.assertHolidays(
+            ("2022-01-01", "New Year's Day"),
+            ("2022-02-21", "Father Lini Day"),
+            ("2022-03-05", "Custom Chief's Day"),
+            ("2022-04-15", "Good Friday"),
+            ("2022-04-18", "Easter Monday"),
+            ("2022-05-01", "Labour Day"),
+            ("2022-05-26", "Ascension Day"),
+            ("2022-07-24", "Children's Day"),
+            ("2022-07-30", "Independence Day"),
+            ("2022-08-15", "Assumption Day"),
+            ("2022-10-05", "Constitution Day"),
+            ("2022-11-29", "National Unity Day"),
+            ("2022-12-25", "Christmas Day"),
+            ("2022-12-26", "Family Day"),
+        )