请确保您创建并激活一个[虚拟环境](../virtual-environments.md){.internal-link target=_blank}，然后**安装 FastAPI**：

<div class="termy">

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

---> 100%
```

</div>

/// note

当您使用 `pip install "fastapi[standard]"` 进行安装时，它会附带一些默认的可选标准依赖项。

如果您不想安装这些可选依赖，可以选择安装 `pip install fastapi`。

///

## 进阶用户指南

在本**教程-用户指南**之后，您可以阅读**进阶用户指南**。

**进阶用户指南**以本教程为基础，使用相同的概念，并教授一些额外的特性。

    Die Option `--no-cache-dir` weist `pip` an, die heruntergeladenen Pakete nicht lokal zu speichern, da dies nur benötigt wird, sollte `pip` erneut ausgeführt werden, um dieselben Pakete zu installieren, aber das ist beim Arbeiten mit Containern nicht der Fall.

    /// note | Hinweis

    Das `--no-cache-dir` bezieht sich nur auf `pip`, es hat nichts mit Docker oder Containern zu tun.

    ///

    The `--no-cache-dir` option tells `pip` to not save the downloaded packages locally, as that is only if `pip` was going to be run again to install the same packages, but that's not the case when working with containers.

    /// note

    The `--no-cache-dir` is only related to `pip`, it has nothing to do with Docker or containers.

    ///

    The `--upgrade` option tells `pip` to upgrade the packages if they are already installed.

        with:
          version: "0.4.15"
          enable-cache: true
          cache-dependency-glob: |
            requirements**.txt
            pyproject.toml
      - name: Install Dependencies
        run: uv pip install -r requirements-tests.txt
      - run: mkdir coverage
      - name: Test
        if: matrix.codspeed != 'codspeed'
        run: bash scripts/test.sh
        env:

        with:
          version: "0.4.15"
          enable-cache: true
          cache-dependency-glob: |
            requirements**.txt
            pyproject.toml
      - name: Install Dependencies
        run: uv pip install -r requirements-github-actions.txt
      # Allow debugging with tmate
      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3

        with:
          version: "0.4.15"
          enable-cache: true
          cache-dependency-glob: |
            requirements**.txt
            pyproject.toml
      - name: Install Dependencies
        run: uv pip install -r requirements-github-actions.txt
      # Allow debugging with tmate
      - name: Setup tmate session
        uses: mxschmitt/action-tmate@v3

However, if you use the `pip install fastapi` command, the `python-multipart` package is not included by default.

To install it manually, make sure you create a [virtual environment](../../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it with:

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

     由于此文件**不经常更改**，Docker 将检测到它并在这一步中使用**缓存**，从而为下一步启用缓存。

4. 安装需求文件中的包依赖项。

     `--no-cache-dir` 选项告诉 `pip` 不要在本地保存下载的包，因为只有当 `pip` 再次运行以安装相同的包时才会这样，但在与容器一起工作时情况并非如此。

     /// note | 笔记

     `--no-cache-dir` 仅与 `pip` 相关，与 Docker 或容器无关。

     ///

     `--upgrade` 选项告诉 `pip` 升级软件包（如果已经安装）。

     因为上一步复制文件可以被 **Docker 缓存** 检测到，所以此步骤也将 **使用 Docker 缓存**（如果可用）。

    La opción `--no-cache-dir` le dice a `pip` que no guarde los paquetes descargados localmente, ya que eso solo sería si `pip` fuese a ejecutarse de nuevo para instalar los mismos paquetes, pero ese no es el caso al trabajar con contenedores.

    /// note | Nota

    El `--no-cache-dir` está relacionado solo con `pip`, no tiene nada que ver con Docker o contenedores.

    ///

#!/bin/bash

# The website is built using MkDocs with the Material theme.
# https://squidfunk.github.io/mkdocs-material/
# It requires Python to run.
# Install the packages with the following command:
# pip install mkdocs mkdocs-material mkdocs-redirects

set -ex

# Test generating the javadoc jars
./gradlew publishToMavenLocal -DRELEASE_SIGNING_ENABLED=false

# Generate the API docs
./gradlew dokkaHtmlMultiModule