Fix annotation lookup for Python 3.14

Author: bcbnz

pgfutils.py

@@ -459,14 +459,14 @@ def update(self, new_settings: Mapping[str, Mapping[str, Any]]):
 
         """
         # Check if there are sections we don't use.
-        extra = set(new_settings.keys()).difference(self.__annotations__)
+        extra = set(new_settings.keys()).difference(Config.__annotations__)
         if extra:
             warnings.warn(
                 f"unknown sections in configuration: {', '.join(extra)}", stacklevel=2
             )
 
         # Process each section we know about.
-        for name, definition in self.__annotations__.items():
+        for name, definition in Config.__annotations__.items():
             if name not in new_settings:
                 continue
 

tests/test_data.py

@@ -18,7 +18,7 @@ def test_data_config(self):
         # Helper function to convert a config object to a dictionary.
         def to_dict(cfg: Config):
             result = {}
-            for section in cfg.__annotations__.keys():
+            for section in Config.__annotations__.keys():
                 result[section] = getattr(cfg, section)
             return result