Osterberechnung als SupyBot-Plugin Holidays

Holidays/__init__.py

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+import supybot
+import supybot.world as world
+
+# Use this for the version of this plugin.  You may wish to put a CVS keyword
+# in here if you\'re keeping the plugin in CVS or some similar system.
+__version__ = "%%VERSION%%"
+
+__author__ = "qwertfisch"
+__maintainer__ = ""
+
+# This is a dictionary mapping supybot.Author instances to lists of
+# contributions.
+__contributors__ = {}
+
+from . import config
+from . import plugin
+from importlib import reload
+reload(plugin) # In case we're being reloaded.
+
+if world.testing:
+    from . import test
+    
+Class = plugin.Class
+configure = config.configure

Holidays/config.py

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+import supybot.conf as conf
+import supybot.registry as registry
+from supybot.i18n import PluginInternationalization, internationalizeDocstring
+_ = PluginInternationalization('Holidays')
+
+def configure(advanced):
+    # This will be called by supybot to configure this module.  advanced is
+    # a bool that specifies whether the user identified themself as an advanced
+    # user or not.  You should effect your configuration by manipulating the
+    # registry as appropriate.
+    from supybot.questions import expect, anything, something, yn
+    conf.registerPlugin('Holidays', True)
+
+
+Holidays = conf.registerPlugin('Holidays')
+# This is where your configuration variables (if any) should go.  For example:
+# conf.registerGlobalValue(Holidays, 'someConfigVariableName',
+#     registry.Boolean(False, _("""Help for someConfigVariableName.""")))

Holidays/plugin.py

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+from datetime import date
+
+import supybot.utils as utils
+from supybot.commands import *
+import supybot.ircutils as ircutils
+import supybot.callbacks as callbacks
+from supybot import commands
+from supybot.i18n import PluginInternationalization, internationalizeDocstring
+_ = PluginInternationalization('Holidays')
+
+
+class Holidays(callbacks.Plugin):
+    """This plugin calculates and returns the number of days until the next given holiday,
+    like Eastern, Christmas etc."""
+    def __init__(self, irc):
+        self.__parent = super(Holidays, self)
+        self.__parent.__init__(irc)
+
+    def easter(year):
+        a = year % 19
+        b = year % 4
+        c = year % 7
+        k = year // 100
+        p = k // 3
+        q = k // 4
+        M = (15 + k - p - q) % 30
+        d = (19*a + M) % 30
+        N = (4 + k - q) % 7
+        e = (2*b + 4*c + 6*d + N) % 7
+
+        easter_date = 22 + d + e
+        if easter_date > 31:
+            return date(year, 4, easter_date - 31)
+        else:
+            return date(year, 3, easter_date)
+
+    @internationalizeDocstring
+    def holiday(self, irc, msg, args, holiday_name):
+        """[<holiday name>]
+
+        Returns the number of days until the next given holiday.
+        """
+
+        if holiday_name.lower() != 'ostern':
+            irc.reply('Tut mir leid, ich beherrsche nur Ostern.')
+            return
+
+        # Determine Easter date for current year
+        easter_current_year = easter(date.today().year)
+        days_remaining = (easter_current_year - date.today()).days
+        # If it has already passed, determine date for next year
+        if days_remaining < 0:
+            easter_next_year = easter(date.today().year + 1)
+            days_remaining = (easter_next_year - date.today()).days
+
+        if days_remaining == 0:
+            irc.reply('Heute ist Ostersonntag.')
+        else:
+            irc.reply(f'Es sind noch {days_remaining} Tage bis Ostersonntag.')
+    holiday = wrap(holiday, ['text'])

holidays.py

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+# Calculation how many days to next Easter sunday
+
+import sys
+from datetime import date 
+
+def easter(year):
+    a = year % 19
+    b = year % 4
+    c = year % 7
+    k = year // 100
+    p = k // 3
+    q = k // 4
+    M = (15 + k - p - q) % 30
+    d = (19*a + M) % 30
+    N = (4 + k - q) % 7
+    e = (2*b + 4*c + 6*d + N) % 7
+
+    easter_date = 22 + d + e
+    if easter_date > 31:
+        return date(year, 4, easter_date - 31)
+    else:
+        return date(year, 3, easter_date)
+
+# Determine Easter date for current year
+easter_current_year = easter(date.today().year)
+days_remaining = (easter_current_year - date.today()).days
+# If it has already passed, determine date for next year
+if days_remaining < 0:
+    easter_next_year = easter(date.today().year + 1)
+    days_remaining = (easter_next_year - date.today()).days
+
+if days_remaining == 0:
+    print("juhu, ostersonntag!")
+else:
+    print(f"Noch {days_remaining} Tage bis Ostersonntag!")