some new features

.venv/lib/python3.12/site-packages/holidays/countries/congo.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.groups import ChristianHolidays, InternationalHolidays
+from holidays.holiday_base import HolidayBase
+
+
+class Congo(HolidayBase, ChristianHolidays, InternationalHolidays):
+    """Congo holidays.
+
+    References:
+        * [Loi N° 2-94](https://web.archive.org/web/20241003070938/http://mokili.free.fr/jours_feries.php)
+        * [Loi N° 18-2010](https://web.archive.org/web/20250427173832/https://www.finances.gouv.cg/sites/default/files/documents/n¯18-2010%20du%2027%20novembre%202010.PDF)
+
+    Cross-Checked With:
+        * <https://en.wikipedia.org/wiki/Public_holidays_in_the_Republic_of_the_Congo>
+    """
+
+    country = "CG"
+    default_language = "fr"
+    supported_languages = ("en_US", "fr")
+    # Loi N° 2-94 of 1 March 1994.
+    start_year = 1994
+
+    def __init__(self, *args, **kwargs) -> None:
+        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("Jour de l'An"))
+
+        # Easter Monday.
+        self._add_easter_monday(tr("Lundi de Pâques"))
+
+        # Labor Day.
+        self._add_labor_day(tr("Fête du Travail"))
+
+        # Ascension Day.
+        self._add_ascension_thursday(tr("Ascension"))
+
+        # Whit Monday.
+        self._add_whit_monday(tr("Lundi de Pentecôte"))
+
+        # Reconciliation Day.
+        self._add_holiday_jun_10(tr("Fête de la Réconciliation"))
+
+        # National Day.
+        self._add_holiday_aug_15(tr("Fête Nationale"))
+
+        # All Saints' Day.
+        self._add_all_saints_day(tr("Toussaint"))
+
+        if self._year >= 2010:
+            # Republic Day.
+            self._add_holiday_nov_28(tr("Jour de la République"))
+
+        # Christmas Day.
+        self._add_christmas_day(tr("Noël"))
+
+
+class CG(Congo):
+    pass
+
+
+class COG(Congo):
+    pass