Update typing 03 (#48015)

homeassistant/util/json.py

@@ -1,10 +1,12 @@
 """JSON utility functions."""
+from __future__ import annotations
+
 from collections import deque
 import json
 import logging
 import os
 import tempfile
-from typing import Any, Callable, Dict, List, Optional, Type, Union
+from typing import Any, Callable
 
 from homeassistant.core import Event, State
 from homeassistant.exceptions import HomeAssistantError
@@ -20,9 +22,7 @@ class WriteError(HomeAssistantError):
     """Error writing the data."""
 
 
-def load_json(
-    filename: str, default: Union[List, Dict, None] = None
-) -> Union[List, Dict]:
+def load_json(filename: str, default: list | dict | None = None) -> list | dict:
     """Load JSON data from a file and return as dict or list.
 
     Defaults to returning empty dict if file is not found.
@@ -44,10 +44,10 @@ def load_json(
 
 def save_json(
     filename: str,
-    data: Union[List, Dict],
+    data: list | dict,
     private: bool = False,
     *,
-    encoder: Optional[Type[json.JSONEncoder]] = None,
+    encoder: type[json.JSONEncoder] | None = None,
 ) -> None:
     """Save JSON data to a file.
 
@@ -85,7 +85,7 @@ def save_json(
                 _LOGGER.error("JSON replacement cleanup failed: %s", err)
 
 
-def format_unserializable_data(data: Dict[str, Any]) -> str:
+def format_unserializable_data(data: dict[str, Any]) -> str:
     """Format output of find_paths in a friendly way.
 
     Format is comma separated: <path>=<value>(<type>)
@@ -95,7 +95,7 @@ def format_unserializable_data(data: Dict[str, Any]) -> str:
 
 def find_paths_unserializable_data(
     bad_data: Any, *, dump: Callable[[Any], str] = json.dumps
-) -> Dict[str, Any]:
+) -> dict[str, Any]:
     """Find the paths to unserializable data.
 
     This method is slow! Only use for error handling.