some new features

.venv/lib/python3.12/site-packages/holidays/countries/ireland.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)
+
+from holidays.calendars.gregorian import FEB, MAR, SEP, DEC
+from holidays.groups import ChristianHolidays, InternationalHolidays, StaticHolidays
+from holidays.holiday_base import HolidayBase
+
+
+class Ireland(HolidayBase, ChristianHolidays, InternationalHolidays, StaticHolidays):
+    """Ireland holidays.
+
+    References:
+        * <https://en.wikipedia.org/wiki/Public_holidays_in_the_Republic_of_Ireland>
+        * <https://web.archive.org/web/20250317124917/https://www.citizensinformation.ie/en/employment/employment_rights_and_conditions/leave_and_holidays/public_holidays_in_ireland.html>
+    """
+
+    country = "IE"
+    start_year = 1872
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        StaticHolidays.__init__(self, IrelandStaticHolidays)
+        super().__init__(*args, **kwargs)
+
+    def _populate_public_holidays(self):
+        # New Year's Day.
+        if self._year >= 1975:
+            self._add_new_years_day("New Year's Day")
+
+        # Saint Brigid's Day.
+        if self._year >= 2023:
+            name = "Saint Brigid's Day"
+            if self._is_friday(FEB, 1):
+                self._add_holiday_feb_1(name)
+            else:
+                self._add_holiday_1st_mon_from_feb_1(name)
+
+        # Saint Patrick's Day.
+        if self._year >= 1903:
+            self._add_holiday_mar_17("Saint Patrick's Day")
+
+        # Easter Monday.
+        self._add_easter_monday("Easter Monday")
+
+        # May Day.
+        if self._year >= 1994:
+            name = "May Day"
+            if self._year == 1995:
+                self._add_holiday_may_8(name)
+            else:
+                self._add_holiday_1st_mon_of_may(name)
+
+        if self._year >= 1973:
+            # June Bank Holiday.
+            self._add_holiday_1st_mon_of_jun("June Bank Holiday")
+        else:
+            # Whit Monday.
+            self._add_whit_monday("Whit Monday")
+
+        # August Bank Holiday.
+        self._add_holiday_1st_mon_of_aug("August Bank Holiday")
+
+        # October Bank Holiday.
+        if self._year >= 1977:
+            self._add_holiday_last_mon_of_oct("October Bank Holiday")
+
+        # Christmas Day.
+        self._add_christmas_day("Christmas Day")
+
+        # Saint Stephen's Day.
+        self._add_christmas_day_two("Saint Stephen's Day")
+
+
+class IE(Ireland):
+    pass
+
+
+class IRL(Ireland):
+    pass
+
+
+class IrelandStaticHolidays:
+    special_public_holidays = {
+        1999: (DEC, 31, "Millennium Celebrations"),
+        2011: (SEP, 14, "National Day of Mourning"),
+        2022: (MAR, 18, "Day of Remembrance and Recognition"),
+    }