Provide functions for tuples and enumerations in i18n module

Closes #2

calendarweek/django.py

@@ -8,8 +8,8 @@ from django.utils.translation import get_language, to_locale
 from .calendarweek import CalendarWeek
 
 
-def i18n_day_names() -> Tuple[Tuple[int, str]]:
-    """ Return an enumeration of day names for the current locale. """
+def i18n_day_names() -> Tuple[str]:
+    """ Return a tuple of day names for the current locale. """
 
     loc = to_locale(get_language()) + "." + DEFAULT_LOCALE_ENCODING
 
@@ -19,8 +19,8 @@ def i18n_day_names() -> Tuple[Tuple[int, str]]:
         return CalendarWeek.day_names()
 
 
-def i18n_day_abbrs() -> Tuple[Tuple[int, str]]:
-    """ Return an enumeration of day name abbreviations for the current locale. """
+def i18n_day_abbrs() -> Tuple[str]:
+    """ Return a tuple of day name abbreviations for the current locale. """
 
     loc = to_locale(get_language()) + "." + DEFAULT_LOCALE_ENCODING
 
@@ -30,5 +30,19 @@ def i18n_day_abbrs() -> Tuple[Tuple[int, str]]:
         return CalendarWeek.day_abbrs()
 
 
+def i18n_day_name_choices() -> Tuple[Tuple[int, str]]:
+    """ Return an enumeration of day names for the current locale. """
+
+    return enumerate(i18n_day_names())
+
+
+def i18n_day_abbr_choices() -> Tuple[Tuple[int, str]]:
+    """ Return an enumeration of day name abbreviations for the current locale. """
+
+    return enumerate(i18n_day_abbrs())
+
+
 i18n_day_names_lazy = lazy(i18n_day_names, tuple)
 i18n_day_abbrs_lazy = lazy(i18n_day_abbrs, tuple)
+i18n_day_name_choices_lazy = lazy(i18n_day_name_choices, tuple)
+i18n_day_abbr_choices_lazy = lazy(i18n_day_abbr_choices, tuple)