some new features

.venv/lib/python3.12/site-packages/holidays/countries/marshall_islands.py

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+#  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: Vacanza Team and individual contributors (see CONTRIBUTORS file)
+#           dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
+#           ryanss <ryanssdev@icloud.com> (c) 2014-2017
+#  Website: https://github.com/vacanza/holidays
+#  License: MIT (see LICENSE file)
+
+import warnings
+
+from holidays.calendars.gregorian import NOV
+from holidays.groups import ChristianHolidays, InternationalHolidays, StaticHolidays
+from holidays.observed_holiday_base import ObservedHolidayBase, SUN_TO_NEXT_MON
+
+
+class HolidaysMH(ObservedHolidayBase, ChristianHolidays, InternationalHolidays, StaticHolidays):
+    """Marshall Islands holidays.
+
+    References:
+        * <https://web.archive.org/web/20240613114250/https://rmiparliament.org/cms/component/content/article/14-pressrelease/49-important-public-holidays.html?Itemid=101>
+        * <https://web.archive.org/web/20230528174331/http://www.rmiembassyus.org/country-profile>
+    """
+
+    country = "MH"
+    observed_label = "%s Holiday"
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        StaticHolidays.__init__(self, MarshalIslandsStaticHolidays)
+        kwargs.setdefault("observed_rule", SUN_TO_NEXT_MON)
+        super().__init__(*args, **kwargs)
+
+    def _populate_public_holidays(self):
+        if self._year <= 2019:
+            warnings.warn(
+                "Years before 2020 are not available for the Marshall Islands (MH).", Warning
+            )
+
+        # New Year's Day
+        self._add_observed(self._add_new_years_day("New Year's Day"))
+
+        # Nuclear Victims Remembrance Day
+        self._add_observed(self._add_holiday_mar_1("Nuclear Victims Remembrance Day"))
+
+        # Good Friday
+        self._add_good_friday("Good Friday")
+
+        # Constitution Day
+        self._add_observed(self._add_holiday_may_1("Constitution Day"))
+
+        # Fisherman's Day
+        self._add_holiday_1st_fri_of_jul("Fisherman's Day")
+
+        # Dri-jerbal Day
+        self._add_holiday_1st_fri_of_sep("Dri-jerbal Day")
+
+        # Manit Day
+        self._add_holiday_last_fri_of_sep("Manit Day")
+
+        # President's Day
+        self._add_observed(self._add_holiday_nov_17("President's Day"))
+
+        # Gospel Day
+        self._add_holiday_1st_fri_of_dec("Gospel Day")
+
+        # Christmas Day
+        name = "Christmas Day"
+        if self._year == 2021:
+            # special case
+            self._add_holiday_dec_24(name)
+        else:
+            self._add_observed(self._add_christmas_day(name))
+
+
+class MH(HolidaysMH):
+    pass
+
+
+class MHL(HolidaysMH):
+    pass
+
+
+class MarshallIslands(HolidaysMH):
+    pass
+
+
+class MarshalIslandsStaticHolidays:
+    # General Election Day
+    election_day = "General Election Day"
+
+    special_public_holidays = {
+        1995: (NOV, 20, election_day),
+        1999: (NOV, 22, election_day),
+        2003: (NOV, 17, election_day),
+        2007: (NOV, 19, election_day),
+        2011: (NOV, 21, election_day),
+        2015: (NOV, 16, election_day),
+        2019: (NOV, 18, election_day),
+        2023: (NOV, 20, election_day),
+    }