some new features

.venv/lib/python3.12/site-packages/holidays/countries/botswana.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 JUL
+from holidays.groups import ChristianHolidays, InternationalHolidays, StaticHolidays
+from holidays.observed_holiday_base import (
+    ObservedHolidayBase,
+    SAT_TO_NEXT_MON,
+    SUN_TO_NEXT_MON,
+    SUN_TO_NEXT_TUE,
+)
+
+
+class Botswana(ObservedHolidayBase, ChristianHolidays, InternationalHolidays, StaticHolidays):
+    """Botswana holidays.
+
+    References:
+        * <https://web.archive.org/web/20250126165541/https://www.gov.bw/public-holidays>
+        * <https://web.archive.org/web/20240303024114/https://publicholidays.africa/botswana/2021-dates/>
+        * <https://web.archive.org/web/20250126135243/https://www.timeanddate.com/holidays/botswana/>
+        * <https://web.archive.org/web/20231103081712/http://www.ilo.org/dyn/travail/docs/1766/Public%20Holidays%20Act.pdf>
+    """
+
+    country = "BW"
+    observed_label = "%s (observed)"
+    start_year = 1966
+
+    def __init__(self, *args, **kwargs):
+        ChristianHolidays.__init__(self)
+        InternationalHolidays.__init__(self)
+        StaticHolidays.__init__(self, BotswanaStaticHolidays)
+        kwargs.setdefault("observed_rule", SUN_TO_NEXT_MON)
+        kwargs.setdefault("observed_since", 1995)
+        super().__init__(*args, **kwargs)
+
+    def _populate_public_holidays(self):
+        self._add_observed(self._add_new_years_day("New Year's Day"), rule=SUN_TO_NEXT_TUE)
+        self._add_observed(self._add_new_years_day_two("New Year's Day Holiday"))
+
+        self._add_good_friday("Good Friday")
+
+        self._add_holy_saturday("Holy Saturday")
+
+        self._add_easter_monday("Easter Monday")
+
+        self._add_observed(may_1 := self._add_labor_day("Labour Day"))
+        if self._year >= 2016:
+            self._add_observed(
+                may_1, name="Labour Day Holiday", rule=SAT_TO_NEXT_MON, show_observed_label=False
+            )
+
+        self._add_ascension_thursday("Ascension Day")
+
+        self._add_observed(self._add_holiday_jul_1("Sir Seretse Khama Day"))
+
+        self._add_holiday_3rd_mon_of_jul("President's Day")
+        self._add_holiday_1_day_past_3rd_mon_of_jul("President's Day Holiday")
+
+        self._add_observed(self._add_holiday_sep_30("Botswana Day"), rule=SUN_TO_NEXT_TUE)
+        self._add_observed(self._add_holiday_oct_1("Botswana Day Holiday"))
+
+        self._add_observed(self._add_christmas_day("Christmas Day"), rule=SUN_TO_NEXT_TUE)
+        self._add_observed(dec_26 := self._add_christmas_day_two("Boxing Day"))
+
+        if self._year >= 2016:
+            self._add_observed(
+                dec_26, name="Boxing Day Holiday", rule=SAT_TO_NEXT_MON, show_observed_label=False
+            )
+
+
+class BW(Botswana):
+    pass
+
+
+class BWA(Botswana):
+    pass
+
+
+class BotswanaStaticHolidays:
+    special_public_holidays = {
+        2019: (JUL, 2, "Public Holiday"),
+    }