🐛 Remove Required shadowing from fastapi using Pydantic v2 (#12197)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Sofie Van Landeghem <svlandeg@users.noreply.github.com>

docs_src/query_params_str_validations/tutorial006d.py

@@ -1,11 +1,10 @@
 from fastapi import FastAPI, Query
-from pydantic import Required
 
 app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(q: str = Query(default=Required, min_length=3)):
+async def read_items(q: str = Query(default=..., min_length=3)):
     results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
     if q:
         results.update({"q": q})

docs_src/query_params_str_validations/tutorial006d_an.py

@@ -1,12 +1,11 @@
 from fastapi import FastAPI, Query
-from pydantic import Required
 from typing_extensions import Annotated
 
 app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(q: Annotated[str, Query(min_length=3)] = Required):
+async def read_items(q: Annotated[str, Query(min_length=3)] = ...):
     results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
     if q:
         results.update({"q": q})

docs_src/query_params_str_validations/tutorial006d_an_py39.py

@@ -1,13 +1,12 @@
 from typing import Annotated
 
 from fastapi import FastAPI, Query
-from pydantic import Required
 
 app = FastAPI()
 
 
 @app.get("/items/")
-async def read_items(q: Annotated[str, Query(min_length=3)] = Required):
+async def read_items(q: Annotated[str, Query(min_length=3)] = ...):
     results = {"items": [{"item_id": "Foo"}, {"item_id": "Bar"}]}
     if q:
         results.update({"q": q})