🎨 Tweak types

docs_src/extra_models/tutorial003_py310.py

@@ -1,5 +1,3 @@
-from typing import Union
-
 from fastapi import FastAPI
 from pydantic import BaseModel
 
@@ -30,6 +28,6 @@ items = {
 }
 
 
-@app.get("/items/{item_id}", response_model=Union[PlaneItem, CarItem])
+@app.get("/items/{item_id}", response_model=PlaneItem | CarItem)
 async def read_item(item_id: str):
     return items[item_id]

tests/test_additional_responses_union_duplicate_anyof.py

@@ -4,8 +4,6 @@ don't accumulate duplicate $ref entries in anyOf arrays.
 See https://github.com/fastapi/fastapi/pull/14463
 """
 
-from typing import Union
-
 from fastapi import FastAPI
 from fastapi.testclient import TestClient
 from inline_snapshot import snapshot
@@ -23,7 +21,7 @@ class ModelB(BaseModel):
 app = FastAPI(
     responses={
         500: {
-            "model": Union[ModelA, ModelB],
+            "model": ModelA | ModelB,
             "content": {"application/json": {"examples": {"Case A": {"value": "a"}}}},
         }
     }

tests/test_compat.py

@@ -125,7 +125,7 @@ def test_serialize_sequence_value_with_none_first_in_union():
     from fastapi._compat import v2
 
     # Use Union[None, list[str]] to ensure None comes first in the union args
-    field_info = FieldInfo(annotation=Union[None, list[str]])
+    field_info = FieldInfo(annotation=Union[None, list[str]])  # noqa: UP007
     field = v2.ModelField(name="items", field_info=field_info)
     result = v2.serialize_sequence_value(field=field, value=["x", "y"])
     assert result == ["x", "y"]