some new features

.venv/lib/python3.12/site-packages/holidays/groups/buddhist.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 datetime import date
+from typing import Optional
+
+from holidays.calendars import _BuddhistLunisolar
+from holidays.groups.eastern import EasternCalendarHolidays
+
+
+class BuddhistCalendarHolidays(EasternCalendarHolidays):
+    """
+    Buddhist lunisolar calendar holidays.
+    """
+
+    def __init__(self, cls=None, show_estimated=False) -> None:
+        self._buddhist_calendar = cls() if cls else _BuddhistLunisolar()
+        self._buddhist_calendar_show_estimated = show_estimated
+
+    def _add_buddhist_calendar_holiday(
+        self, name: str, dt_estimated: tuple[Optional[date], bool]
+    ) -> Optional[date]:
+        """
+        Add Buddhist calendar holiday.
+
+        Adds customizable estimation label to holiday name if holiday date
+        is an estimation.
+        """
+        return self._add_eastern_calendar_holiday(
+            name, dt_estimated, self._buddhist_calendar_show_estimated
+        )
+
+    def _add_vesak(self, name) -> Optional[date]:
+        """
+        Add Vesak (15th day of the 4th lunar month).
+
+        Vesak for Thailand, Laos, Singapore and Indonesia.
+        https://en.wikipedia.org/wiki/Vesak
+        """
+        return self._add_buddhist_calendar_holiday(
+            name, self._buddhist_calendar.vesak_date(self._year)
+        )
+
+    def _add_vesak_may(self, name) -> Optional[date]:
+        """
+        Add Vesak (on the day of the first full moon in May
+        in the Gregorian calendar).
+
+        Vesak for Sri Lanka, Nepal, India, Bangladesh and Malaysia.
+        https://en.wikipedia.org/wiki/Vesak
+        """
+        return self._add_buddhist_calendar_holiday(
+            name, self._buddhist_calendar.vesak_may_date(self._year)
+        )