Si no deseas incluir las dependencias opcionales `standard`, puedes instalar con `pip install fastapi` en lugar de `pip install "fastapi[standard]"`.

### Sin `fastapi-cloud-cli` { #without-fastapi-cloud-cli }

Si quieres instalar FastAPI con las dependencias standard pero sin `fastapi-cloud-cli`, puedes instalar con `pip install "fastapi[standard-no-fastapi-cloud-cli]"`.

Se você não deseja incluir as dependências opcionais `standard`, você pode instalar utilizando `pip install fastapi` ao invés de `pip install "fastapi[standard]"`.

### Sem o `fastapi-cloud-cli` { #without-fastapi-cloud-cli }

Se você quiser instalar o FastAPI com as dependências padrão, mas sem o `fastapi-cloud-cli`, você pode instalar com `pip install "fastapi[standard-no-fastapi-cloud-cli]"`.

먼저 [가상 환경](../virtual-environments.md)을 만들고 활성화한 다음, `pydantic-settings` 패키지를 설치하세요:

<div class="termy">

```console
$ pip install pydantic-settings
---> 100%
```

</div>

또는 다음처럼 `all` extras를 설치하면 함께 포함됩니다:

<div class="termy">

```console
$ pip install "fastapi[all]"
---> 100%
```

</div>

### `Settings` 객체 만들기 { #create-the-settings-object }

## 執行 { #run-it }

/// info

當你使用 `pip install "fastapi[standard]"` 指令安裝時，[`python-multipart`](https://github.com/Kludex/python-multipart) 套件會隨 FastAPI 自動安裝。

不過若只執行 `pip install fastapi`，預設不會包含 `python-multipart`。

若要手動安裝，請先建立並啟用一個[虛擬環境](../../virtual-environments.md)，接著執行：

```console
$ pip install python-multipart
```

因為 OAuth2 會以「form data」傳送 `username` 與 `password`。

///

## 运行 { #run-it }

/// info | 信息

当你使用命令 `pip install "fastapi[standard]"` 安装 **FastAPI** 时，[`python-multipart`](https://github.com/Kludex/python-multipart) 包会自动安装。

但是，如果你使用 `pip install fastapi`，默认不会包含 `python-multipart` 包。

如需手动安装，请先创建并激活[虚拟环境](../../virtual-environments.md)，然后执行：

```console
$ pip install python-multipart
```

这是因为 **OAuth2** 使用“表单数据”来发送 `username` 和 `password`。

Wenn Sie die `standard` optionalen Abhängigkeiten nicht einschließen möchten, können Sie mit `pip install fastapi` statt `pip install "fastapi[standard]"` installieren.

### Ohne `fastapi-cloud-cli` { #without-fastapi-cloud-cli }

Wenn Sie FastAPI mit den Standardabhängigkeiten, aber ohne das `fastapi-cloud-cli` installieren möchten, können Sie mit `pip install "fastapi[standard-no-fastapi-cloud-cli]"` installieren.

## Using `WSGIMiddleware` { #using-wsgimiddleware }

/// info

This requires installing `a2wsgi` for example with `pip install a2wsgi`.

///

You need to import `WSGIMiddleware` from `a2wsgi`.

Then wrap the WSGI (e.g. Flask) app with the middleware.

And then mount that under a path.

Si vous ne souhaitez pas inclure les dépendances optionnelles `standard`, vous pouvez installer avec `pip install fastapi` au lieu de `pip install "fastapi[standard]"`.

### Sans `fastapi-cloud-cli` { #without-fastapi-cloud-cli }

Si vous souhaitez installer FastAPI avec les dépendances standard mais sans `fastapi-cloud-cli`, vous pouvez installer avec `pip install "fastapi[standard-no-fastapi-cloud-cli]"`.

Vous devez créer un [environnement virtuel](../virtual-environments.md), l'activer, puis vous pouvez installer l'application serveur.

Par exemple, pour installer Uvicorn :

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

Un processus similaire s'appliquerait à tout autre programme de serveur ASGI.

/// tip | Astuce

If you don't want to include the `standard` optional dependencies, you can install with `pip install fastapi` instead of `pip install "fastapi[standard]"`.

### Without `fastapi-cloud-cli` { #without-fastapi-cloud-cli }

If you want to install FastAPI with the standard dependencies but without the `fastapi-cloud-cli`, you can install with `pip install "fastapi[standard-no-fastapi-cloud-cli]"`.