Introduce holiday categories support

holidays/constants.py

@@ -15,3 +15,31 @@
 WEEKEND = (SAT, SUN)
 
 JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC = range(1, 13)
+
+# Supported holiday categories.
+BANK = "bank"
+EXTENDED = "extended"
+GOVERNMENT = "government"
+HALF_DAY = "half_day"
+PUBLIC = "public"
+SCHOOL = "school"
+
+CHINESE = "chinese"
+CHRISTIAN = "christian"
+HEBREW = "hebrew"
+HINDU = "hindu"
+ISLAMIC = "islamic"
+
+ALL_CATEGORIES = {
+    BANK,
+    CHINESE,
+    CHRISTIAN,
+    EXTENDED,
+    GOVERNMENT,
+    HALF_DAY,
+    HEBREW,
+    HINDU,
+    ISLAMIC,
+    PUBLIC,
+    SCHOOL,
+}

holidays/countries/austria.py

@@ -11,14 +11,15 @@
 
 from gettext import gettext as tr
 
-from holidays.constants import OCT, NOV
+from holidays.constants import OCT, NOV, BANK, PUBLIC
 from holidays.holiday_base import HolidayBase
 from holidays.holiday_groups import ChristianHolidays, InternationalHolidays
 
 
 class Austria(HolidayBase, ChristianHolidays, InternationalHolidays):
     country = "AT"
     default_language = "de"
+    supported_categories = {BANK, PUBLIC}
     supported_languages = ("de", "en_US", "uk")
     subdivisions = ("1", "2", "3", "4", "5", "6", "7", "8", "9")
 
@@ -32,9 +33,7 @@ def __init__(self, *args, **kwargs) -> None:
             kwargs["subdiv"] = "9"
         super().__init__(*args, **kwargs)
 
-    def _populate(self, year):
-        super()._populate(year)
-
+    def _populate_public_holidays(self):
         # New Year's Day.
         self._add_new_years_day(tr("Neujahr"))
 
@@ -59,10 +58,10 @@ def _populate(self, year):
         # Assumption Day.
         self._add_assumption_of_mary_day(tr("Mariä Himmelfahrt"))
 
-        if 1919 <= year <= 1934:
+        if 1919 <= self._year <= 1934:
             # National Day.
             self._add_holiday(tr("Nationalfeiertag"), NOV, 12)
-        if year >= 1967:
+        if self._year >= 1967:
             self._add_holiday(tr("Nationalfeiertag"), OCT, 26)
 
         # All Saints' Day.
@@ -77,6 +76,16 @@ def _populate(self, year):
         # St. Stephen's Day.
         self._add_christmas_day_two(tr("Stefanitag"))
 
+    def _populate_bank_holidays(self):
+        # Good Friday.
+        self._add_good_friday(tr("Karfreitag"))
+
+        # Christmas Eve.
+        self._add_christmas_eve(tr("Heiliger Abend"))
+
+        # New Year's Eve.
+        self._add_new_years_eve(tr("Silvester"))
+
 
 class AT(Austria):
     pass

holidays/holiday_base.py

@@ -22,7 +22,18 @@
 
 from dateutil.parser import parse
 
-from holidays.constants import HOLIDAY_NAME_DELIMITER, MON, TUE, WED, THU, FRI, SAT, SUN
+from holidays.constants import (
+    HOLIDAY_NAME_DELIMITER,
+    MON,
+    TUE,
+    WED,
+    THU,
+    FRI,
+    SAT,
+    SUN,
+    ALL_CATEGORIES,
+    PUBLIC,
+)
 from holidays.helpers import _normalize_tuple
 
 DateArg = Union[date, Tuple[int, int]]
@@ -211,6 +222,10 @@ def _populate(self, year):
     """Country weekend days."""
     default_language: Optional[str] = None
     """The entity language used by default."""
+    categories: Optional[Set[str]] = None
+    """Requested holiday categories."""
+    supported_categories: Set[str] = set()
+    """All holiday categories supported by this entity."""
     supported_languages: Tuple[str, ...] = ()
     """All languages supported by this entity."""
 
@@ -223,6 +238,7 @@ def __init__(
         prov: Optional[str] = None,  # Deprecated.
         state: Optional[str] = None,  # Deprecated.
         language: Optional[str] = None,
+        categories: Optional[Tuple[str]] = None,
     ) -> None:
         """
         :param years:
@@ -253,6 +269,9 @@ def __init__(
             language translation is not supported the original holiday names
             will be used.
 
+        :param categories:
+            Requested holiday categories.
+
         :return:
             A :class:`HolidayBase` object matching the **country**.
         """
@@ -262,6 +281,7 @@ def __init__(
         self.language = language.lower() if language else None
         self.observed = observed
         self.subdiv = subdiv or prov or state
+        self.categories = set(categories) if categories else {PUBLIC}
 
         self.tr = gettext  # Default translation method.
 
@@ -288,6 +308,12 @@ def __init__(
                     DeprecationWarning,
                 )
 
+            unknown_categories = self.categories.difference(ALL_CATEGORIES)
+            if len(unknown_categories) > 0:
+                raise NotImplementedError(
+                    f"Category is not supported: {', '.join(unknown_categories)}."
+                )
+
             name = getattr(self, "country", getattr(self, "market", None))
             if name:
                 locale_dir = os.path.join(os.path.dirname(__file__), "locale")
@@ -485,7 +511,7 @@ def __repr__(self) -> str:
     def __setattr__(self, key: str, value: Any) -> None:
         dict.__setattr__(self, key, value)
 
-        if self and key == "observed":
+        if self and key in {"categories", "observed"}:
             self.clear()
             for year in self.years:  # Re-populate holidays for each year.
                 self._populate(year)
@@ -628,11 +654,20 @@ def _populate(self, year: int) -> Set[Optional[date]]:
         for month, day, name in _normalize_tuple(self.special_holidays.get(year, ())):
             dates.add(self._add_holiday(name, date(year, month, day)))
 
+        # Populate categories holidays.
+        self._populate_categories()
+
         # Populate subdivision holidays.
         self._add_subdiv_holidays()
 
         return dates
 
+    def _populate_categories(self):
+        for category in self.categories:
+            populate_category_holidays = getattr(self, f"_populate_{category}_holidays", None)
+            if populate_category_holidays and callable(populate_category_holidays):
+                populate_category_holidays()
+
     def append(self, *args: Union[Dict[DateLike, str], List[DateLike], DateLike]) -> None:
         """Alias for :meth:`update` to mimic list type."""
         return self.update(*args)

holidays/locale/de/LC_MESSAGES/AT.po

@@ -2,7 +2,7 @@
 # Authors: ~Jhellico <jhellico@gmail.com>, (c) 2023.
 msgid ""
 msgstr ""
-"Project-Id-Version: Python Holidays 0.23\n"
+"Project-Id-Version: Python Holidays 0.28\n"
 "POT-Creation-Date: 2023-04-01 17:13+0300\n"
 "PO-Revision-Date: 2023-04-01 17:15+0300\n"
 "Last-Translator: ~Jhellico <jhellico@gmail.com>\n"
@@ -16,66 +16,81 @@ msgstr ""
 "X-Generator: Poedit 3.2.2\n"
 
 #. New Year's Day.
-#: ./holidays/countries/austria.py:39
+#: ./holidays/countries/austria.py:38
 msgid "Neujahr"
 msgstr ""
 
 #. Epiphany.
-#: ./holidays/countries/austria.py:42
+#: ./holidays/countries/austria.py:41
 msgid "Heilige Drei Könige"
 msgstr ""
 
 #. Easter Monday.
-#: ./holidays/countries/austria.py:45
+#: ./holidays/countries/austria.py:44
 msgid "Ostermontag"
 msgstr ""
 
 #. Labor Day.
-#: ./holidays/countries/austria.py:48
+#: ./holidays/countries/austria.py:47
 msgid "Staatsfeiertag"
 msgstr ""
 
 #. Ascension Day.
-#: ./holidays/countries/austria.py:51
+#: ./holidays/countries/austria.py:50
 msgid "Christi Himmelfahrt"
 msgstr ""
 
 #. Whit Monday.
-#: ./holidays/countries/austria.py:54
+#: ./holidays/countries/austria.py:53
 msgid "Pfingstmontag"
 msgstr ""
 
 #. Corpus Christi.
-#: ./holidays/countries/austria.py:57
+#: ./holidays/countries/austria.py:56
 msgid "Fronleichnam"
 msgstr ""
 
 #. Assumption Day.
-#: ./holidays/countries/austria.py:60
+#: ./holidays/countries/austria.py:59
 msgid "Mariä Himmelfahrt"
 msgstr ""
 
 #. National Day.
-#: ./holidays/countries/austria.py:64 ./holidays/countries/austria.py:66
+#: ./holidays/countries/austria.py:63 ./holidays/countries/austria.py:65
 msgid "Nationalfeiertag"
 msgstr ""
 
 #. All Saints' Day.
-#: ./holidays/countries/austria.py:69
+#: ./holidays/countries/austria.py:68
 msgid "Allerheiligen"
 msgstr ""
 
 #. Immaculate Conception.
-#: ./holidays/countries/austria.py:72
+#: ./holidays/countries/austria.py:71
 msgid "Mariä Empfängnis"
 msgstr ""
 
 #. Christmas Day.
-#: ./holidays/countries/austria.py:75
+#: ./holidays/countries/austria.py:74
 msgid "Christtag"
 msgstr ""
 
 #. St. Stephen's Day.
-#: ./holidays/countries/austria.py:78
+#: ./holidays/countries/austria.py:77
 msgid "Stefanitag"
 msgstr ""
+
+#. Good Friday.
+#: ./holidays/countries/austria.py:81
+msgid "Karfreitag"
+msgstr ""
+
+#. Christmas Eve.
+#: ./holidays/countries/austria.py:84
+msgid "Heiliger Abend"
+msgstr ""
+
+#. New Year's Eve.
+#: ./holidays/countries/austria.py:87
+msgid "Silvester"
+msgstr ""

holidays/locale/en_US/LC_MESSAGES/AT.po

@@ -3,7 +3,7 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: Python Holidays 0.23\n"
+"Project-Id-Version: Python Holidays 0.28\n"
 "POT-Creation-Date: 2023-04-01 17:13+0300\n"
 "PO-Revision-Date: 2023-04-01 17:18+0300\n"
 "Last-Translator: ~Jhellico <jhellico@gmail.com>\n"
@@ -17,66 +17,81 @@ msgstr ""
 "X-Generator: Poedit 3.2.2\n"
 
 #. New Year's Day.
-#: ./holidays/countries/austria.py:39
+#: ./holidays/countries/austria.py:38
 msgid "Neujahr"
 msgstr "New Year's Day"
 
 #. Epiphany.
-#: ./holidays/countries/austria.py:42
+#: ./holidays/countries/austria.py:41
 msgid "Heilige Drei Könige"
 msgstr "Epiphany"
 
 #. Easter Monday.
-#: ./holidays/countries/austria.py:45
+#: ./holidays/countries/austria.py:44
 msgid "Ostermontag"
 msgstr "Easter Monday"
 
 #. Labor Day.
-#: ./holidays/countries/austria.py:48
+#: ./holidays/countries/austria.py:47
 msgid "Staatsfeiertag"
 msgstr "Labor Day"
 
 #. Ascension Day.
-#: ./holidays/countries/austria.py:51
+#: ./holidays/countries/austria.py:50
 msgid "Christi Himmelfahrt"
 msgstr "Ascension Day"
 
 #. Whit Monday.
-#: ./holidays/countries/austria.py:54
+#: ./holidays/countries/austria.py:53
 msgid "Pfingstmontag"
 msgstr "Whit Monday"
 
 #. Corpus Christi.
-#: ./holidays/countries/austria.py:57
+#: ./holidays/countries/austria.py:56
 msgid "Fronleichnam"
 msgstr "Corpus Christi"
 
 #. Assumption Day.
-#: ./holidays/countries/austria.py:60
+#: ./holidays/countries/austria.py:59
 msgid "Mariä Himmelfahrt"
 msgstr "Assumption Day"
 
 #. National Day.
-#: ./holidays/countries/austria.py:64 ./holidays/countries/austria.py:66
+#: ./holidays/countries/austria.py:63 ./holidays/countries/austria.py:65
 msgid "Nationalfeiertag"
 msgstr "National Day"
 
 #. All Saints' Day.
-#: ./holidays/countries/austria.py:69
+#: ./holidays/countries/austria.py:68
 msgid "Allerheiligen"
 msgstr "All Saints' Day"
 
 #. Immaculate Conception.
-#: ./holidays/countries/austria.py:72
+#: ./holidays/countries/austria.py:71
 msgid "Mariä Empfängnis"
 msgstr "Immaculate Conception"
 
 #. Christmas Day.
-#: ./holidays/countries/austria.py:75
+#: ./holidays/countries/austria.py:74
 msgid "Christtag"
 msgstr "Christmas Day"
 
 #. St. Stephen's Day.
-#: ./holidays/countries/austria.py:78
+#: ./holidays/countries/austria.py:77
 msgid "Stefanitag"
 msgstr "St. Stephen's Day"
+
+#. Good Friday.
+#: ./holidays/countries/austria.py:81
+msgid "Karfreitag"
+msgstr "Good Friday"
+
+#. Christmas Eve.
+#: ./holidays/countries/austria.py:84
+msgid "Heiliger Abend"
+msgstr "Christmas Eve"
+
+#. New Year's Eve.
+#: ./holidays/countries/austria.py:87
+msgid "Silvester"
+msgstr "New Year's Eve"