some new features

.venv/lib/python3.12/site-packages/holidays/countries/iceland.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 gettext import gettext as tr
+
+from holidays.constants import HALF_DAY, PUBLIC
+from holidays.groups import ChristianHolidays, InternationalHolidays
+from holidays.holiday_base import HolidayBase
+
+
+class Iceland(HolidayBase, ChristianHolidays, InternationalHolidays):
+    """Iceland holidays.
+
+    References:
+        * <https://en.wikipedia.org/wiki/Public_holidays_in_Iceland>
+        * <https://web.archive.org/web/20240805200641/https://www.althingi.is/lagas/nuna/1971088.html>
+    """
+
+    country = "IS"
+    default_language = "is"
+    supported_categories = (HALF_DAY, PUBLIC)
+    supported_languages = ("en_US", "is", "uk")
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        super().__init__(*args, **kwargs)
+
+    def _populate_public_holidays(self):
+        # New Year's Day.
+        self._add_new_years_day(tr("Nýársdagur"))
+
+        # Maundy Thursday.
+        self._add_holy_thursday(tr("Skírdagur"))
+
+        # Good Friday.
+        self._add_good_friday(tr("Föstudagurinn langi"))
+
+        # Easter Sunday.
+        self._add_easter_sunday(tr("Páskadagur"))
+
+        # Easter Monday.
+        self._add_easter_monday(tr("Annar í páskum"))
+
+        # First Day of Summer.
+        self._add_holiday_1st_thu_from_apr_19(tr("Sumardagurinn fyrsti"))
+
+        # Labor Day.
+        self._add_labor_day(tr("Verkalýðsdagurinn"))
+
+        # Ascension Day.
+        self._add_ascension_thursday(tr("Uppstigningardagur"))
+
+        # Whit Sunday.
+        self._add_whit_sunday(tr("Hvítasunnudagur"))
+
+        # Whit Monday.
+        self._add_whit_monday(tr("Annar í hvítasunnu"))
+
+        # National Day.
+        self._add_holiday_jun_17(tr("Þjóðhátíðardagurinn"))
+
+        if self._year >= 1983:
+            # Commerce Day.
+            self._add_holiday_1st_mon_of_aug(tr("Frídagur verslunarmanna"))
+
+        # Christmas Day.
+        self._add_christmas_day(tr("Jóladagur"))
+
+        # Second Day of Christmas.
+        self._add_christmas_day_two(tr("Annar í jólum"))
+
+    def _populate_half_day_holidays(self):
+        # %s (from 1pm).
+        begin_time_label = self.tr("%s (frá kl. 13.00)")
+
+        # Christmas Eve.
+        self._add_christmas_eve(begin_time_label % self.tr("Aðfangadagur"))
+
+        # New Year's Eve.
+        self._add_new_years_eve(begin_time_label % self.tr("Gamlársdagur"))
+
+
+class IS(Iceland):
+    pass
+
+
+class ISL(Iceland):
+    pass