name: str

    app = FastAPI()

    with pytest.raises(PydanticV1NotSupportedError):

        @app.post("/param")
        def endpoint(data: ParamModelV1):  # pragma: no cover
            return data


def test_raises_pydantic_v1_model_in_return_type() -> None:
    class ReturnModelV1(BaseModel):
        name: str

    app = FastAPI()

    get_swagger_ui_html,
    get_swagger_ui_oauth2_redirect_html,
)

app = FastAPI(docs_url=None, redoc_url=None)


@app.get("/docs", include_in_schema=False)
async def custom_swagger_ui_html():
    return get_swagger_ui_html(
        openapi_url=app.openapi_url,
        title=app.title + " - Swagger UI",
        oauth2_redirect_url=app.swagger_ui_oauth2_redirect_url,

* Es gibt auch eine Datei `app/dependencies.py`, genau wie `app/main.py` ist sie ein „Modul“: `app.dependencies`.
* Es gibt ein Unterverzeichnis `app/routers/` mit einer weiteren Datei `__init__.py`, es handelt sich also um ein „Python-Subpackage“: `app.routers`.
* Die Datei `app/routers/items.py` befindet sich in einem Package, `app/routers/`, also ist sie ein Submodul: `app.routers.items`.

from pydantic import BaseModel, Field

app = FastAPI()

# =====================================================================================
# Without aliases


@app.get("/required-str")
async def read_required_str(p: Annotated[str, Header()]):
    return {"p": p}


class HeaderModelRequiredStr(BaseModel):
    p: str


@app.get("/model-required-str")

        yield state
    finally:
        state["context_b"] = f"finished b with a: {state['context_a']}"


@app.get("/async")
async def get_async(state: str = Depends(asyncgen_state)):
    return state


@app.get("/sync")
async def get_sync(state: str = Depends(generator_state)):
    return state


@app.get("/async_raise")
async def get_async_raise(state: str = Depends(asyncgen_state_try)):

* Benzer şekilde `app/dependencies.py` dosyası da bir "module"’dür: `app.dependencies`.
* `app/routers/` adında bir alt dizin vardır ve içinde başka bir `__init__.py` dosyası bulunur; dolayısıyla bu bir "Python subpackage"’dir: `app.routers`.
* `app/routers/items.py` dosyası `app/routers/` package’i içinde olduğundan bir submodule’dür: `app.routers.items`.

* `app/routers/items.py` 파일은 `app/routers/` package 안에 있으므로, submodule입니다: `app.routers.items`.
* `app/routers/users.py`도 동일하게 또 다른 submodule입니다: `app.routers.users`.
* `app/internal/` 하위 디렉터리도 있고 여기에 `__init__.py`가 있으므로 또 다른 "Python subpackage"입니다: `app.internal`.
* 그리고 `app/internal/admin.py` 파일은 또 다른 submodule입니다: `app.internal.admin`.

from fastapi import FastAPI, Form
from fastapi.testclient import TestClient
from pydantic import BaseModel, Field

from .utils import get_body_model_name

app = FastAPI()

# =====================================================================================
# Without aliases


@app.post("/optional-list-str", operation_id="optional_list_str")
async def read_optional_list_str(
    p: Annotated[list[str] | None, Form()] = None,
):

* Il y a aussi un fichier `app/dependencies.py`, tout comme `app/main.py`, c'est un « module » : `app.dependencies`.
* Il y a un sous-répertoire `app/routers/` avec un autre fichier `__init__.py`, c'est donc un « sous-package Python » : `app.routers`.
* Le fichier `app/routers/items.py` est dans un package, `app/routers/`, c'est donc un sous-module : `app.routers.items`.

    app = FastAPI()

    def modify_response(response: Response) -> Response:
        response.headers["X-Custom"] = "modified"
        return response

    @app.get("/")
    def endpoint(response: Annotated[Response, Depends(modify_response)]):
        return {"status": "ok"}

    client = TestClient(app)
    resp = client.get("/")

    assert resp.status_code == 200