File responses will include appropriate `Content-Length`, `Last-Modified` and `ETag` headers.

{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}

You can also use the `response_class` parameter:

{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}

In this case, you can return the file path directly from your *path operation* function.

Datei-Responses enthalten die entsprechenden `Content-Length`-, `Last-Modified`- und `ETag`-Header.

{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}

Sie können auch den Parameter `response_class` verwenden:

{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}

In diesem Fall können Sie den Dateipfad direkt von Ihrer *Pfadoperation*-Funktion zurückgeben.

```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009_py39.py!}
```

////

//// tab | Python 3.9+ альтернативный вариант

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b_py39.py!}
```

////

#### Использовать `Union` или `Optional` { #using-union-or-optional }

```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009_py39.py!}
```

////

//// tab | Python 3.9+ Alternative

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b_py39.py!}
```

////

#### `Union` oder `Optional` verwenden? { #using-union-or-optional }

Файловые ответы будут содержать соответствующие заголовки `Content-Length`, `Last-Modified` и `ETag`.

{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}

Вы также можете использовать параметр `response_class`:

{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}

В этом случае вы можете возвращать путь к файлу напрямую из своей функции-обработчика пути.

Los responses de archivos incluirán los headers apropiados `Content-Length`, `Last-Modified` y `ETag`.

{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}

También puedes usar el parámetro `response_class`:

{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}

En este caso, puedes devolver la path del archivo directamente desde tu *path operation* function.

{* ../../docs_src/custom_response/tutorial009_py39.py hl[2,10] *}

Você também pode usar o parâmetro `response_class`:

{* ../../docs_src/custom_response/tutorial009b_py39.py hl[2,8,10] *}

Nesse caso, você pode retornar o caminho do arquivo diretamente da sua *função de operação de rota*.

```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009_py39.py!}
```

////

//// tab | Python 3.9+ alternative

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b_py39.py!}
```

////

#### Using `Union` or `Optional` { #using-union-or-optional }

```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009_py39.py!}
```

////

//// tab | Python 3.9+ alternativa

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b_py39.py!}
```

////

#### Utilizando `Union` ou `Optional` { #using-union-or-optional }

```

////

//// tab | Python 3.9+

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009_py39.py!}
```

////

//// tab | Python 3.9+ alternativa

```Python hl_lines="1  4"
{!> ../../docs_src/python_types/tutorial009b_py39.py!}
```

////

#### Uso de `Union` u `Optional` { #using-union-or-optional }