pandas Create a custom calendar


Here is how to create a custom calendar. The example given is a french calendar -- so it provides many examples.

from import AbstractHolidayCalendar, Holiday, EasterMonday, Easter
from pandas.tseries.offsets import Day, CustomBusinessDay

class FrBusinessCalendar(AbstractHolidayCalendar):
    """ Custom Holiday calendar for France based on
      - 1 January: New Year's Day
      - Moveable: Easter Monday (Monday after Easter Sunday)
      - 1 May: Labour Day
      - 8 May: Victory in Europe Day
      - Moveable Ascension Day (Thursday, 39 days after Easter Sunday)
      - 14 July: Bastille Day
      - 15 August: Assumption of Mary to Heaven
      - 1 November: All Saints' Day
      - 11 November: Armistice Day
      - 25 December: Christmas Day
    rules = [
        Holiday('New Years Day', month=1, day=1),
        Holiday('Labour Day', month=5, day=1),
        Holiday('Victory in Europe Day', month=5, day=8),
        Holiday('Ascension Day', month=1, day=1, offset=[Easter(), Day(39)]),
        Holiday('Bastille Day', month=7, day=14),
        Holiday('Assumption of Mary to Heaven', month=8, day=15),
        Holiday('All Saints Day', month=11, day=1),
        Holiday('Armistice Day', month=11, day=11),
        Holiday('Christmas Day', month=12, day=25)