[+] NestedAccessor

[+] support __getattr__
[+] support some.key.here

internationalization/i18n.py

@@ -4,11 +4,34 @@ from collections import defaultdict
 import json5
 from loguru import logger
 
-from . import utils
+try:
+    from . import utils
+except ImportError:
+    import utils
 
 log = logger.bind(module="i18n", prefix="init")
 log_load = logger.bind(module="i18n", prefix="load")
 
+
+class NestedAccessor:
+    def __init__(self, parent, key_chain):
+        self.parent: "I18N" = parent
+        self.key_chain = key_chain
+
+    def __getattr__(self, item):
+        return NestedAccessor(self.parent, self.key_chain + [item])  # Продолжаем цепочку
+
+    def __call__(self, **kwargs):
+        key = ".".join(self.key_chain)
+        return self.parent.get_phrase(key, **kwargs)
+
+    def __str__(self):
+        return self()
+
+    def __repr__(self):
+        return f"<NestedAccessor key={'.'.join(self.key_chain)}>"
+
+
 class I18N:
 
     def __init__(self, locale_dir, load_lang, encoding):
@@ -29,6 +52,10 @@ class I18N:
         log.debug("Ready")
         self._load()
 
+    @property
+    def locale(self):
+        return self._locale
+
     def _load(self):
         if not self._locale_dir:
             raise FileNotFoundError(f"Locale directory not found: {self._locale_dir}")
@@ -63,11 +90,31 @@ class I18N:
         # key: some.key.here
         phrase = self._locale.get(key)
         if not phrase:
-            return key.upper()
-        return phrase.format_map(defaultdict(lambda: '???', kwargs))
+            return f"<{key.upper()}>"
+        return phrase.format_map(defaultdict(lambda: '<unknown>', kwargs))
+
+    def __getattr__(self, item):
+        key = item.replace("_", ".")  # заменяем _ на . для удобства
+        return NestedAccessor(self, [key])  # Начинаем цепочку
+
+    def __setattr__(self, key, value):
+        raise AttributeError("Can't set attribute")
 
     def __call__(self, key: str, **kwargs):
         return self.get_phrase(key, **kwargs)
 
     def __getitem__(self, key: str):
         return self.get_phrase(key)
+
+if __name__ == '__main__':
+    i18n = I18N("", "ru", "utf-8")
+    print(1, i18n.get_phrase("some.key.here", name="John"))
+    print(2, i18n("some.key.here", name="John"))
+    print(3, i18n["some.key.here"])
+
+    print(4, i18n.some_key_here(name="John"))
+    print(5, i18n.some_key_here)
+    print(6, i18n.some.key.here(name="John"))
+    print(7, i18n.some.key.here)
+
+    print(8, i18n.some.key.no.registered)