Always include the default locale in list_translations, even if it do…

…es not exist. (#75)

CHANGELOG

@@ -5,4 +5,5 @@ Major version bump as this version removes support for Python 3.5 and 3.6.
 - Dropped support for end-of-life Python 3.5 and 3.6, added tests for 3.10 and 3.11.
 - Fixes to documentation to address outdated links and settings (#204, 201)
 - Jinja version 3 or greater is now required (released 2021)
-- Removed Babel._date_formats, use the public Babel.date_formats instead.
+- Removed Babel._date_formats, use the public Babel.date_formats instead.
+- list_translations() always returns the default locale, even if it does not exist. (#75)

flask_babel/__init__.py

@@ -137,6 +137,11 @@ def list_translations(self):
         """Returns a list of all the locales translations exist for. The list
         returned will be filled with actual locale objects and not just strings.
 
+        .. note::
+
+            The default locale will always be returned, even if no translation
+            files exist for it.
+
         .. versionadded:: 0.6
         """
         result = []
@@ -153,10 +158,7 @@ def list_translations(self):
                 if any(x.endswith('.mo') for x in os.listdir(locale_dir)):
                     result.append(Locale.parse(folder))
 
-        # If no other translations are found, add the default locale
-        if not result:
-            result.append(self.default_locale)
-
+        result.append(self.default_locale)
         return result
 
     @property