<match value="MZ" type="string" offset="0"/>
    </magic>
  </mime-type>

  <mime-type type="application/x-ms-installer">
    <_comment>Microsoft Windows Installer</_comment>
    <sub-class-of type="application/x-tika-msoffice"/>
    <alias type="application/x-windows-installer"/>
    <alias type="application/x-msi"/>
    <glob pattern="*.msi"/>
    <glob pattern="*.msp"/>
    <glob pattern="*.mst"/>

  // Please note that using `localhost` or `127.0.0.1` as a `host` is
  // risky unless you take great care to run this webhook on all hosts
  // which run an apiserver which might need to make calls to this
  // webhook. Such installs are likely to be non-portable, i.e., not easy
  // to turn up in a new cluster.
  //
  // The scheme must be "https"; the URL must begin with "https://".
  //

    /** The key of the message: Delete */
    public static final String LABELS_plugin_delete = "{labels.plugin_delete}";

    /** The key of the message: Install */
    public static final String LABELS_plugin_install = "{labels.plugin_install}";

    /** The key of the message: Install Plugin */
    public static final String LABELS_plugin_install_title = "{labels.plugin_install_title}";

    /** The key of the message: Jar File */

- The in-tree GCE PD plugin `kubernetes.io/gce-pd` is now deprecated and will be removed in 1.21. Users that self-deploy Kubernetes on GCP should enable CSIMigration + CSIMigrationGCE features and install the GCE PD CSI Driver (https://github.com/kubernetes-sigs/gcp-compute-persistent-disk-csi-driver) to avoid disruption to existing Pod and PVC objects at that time. Users should start using the GCE PD CSI CSI Driver directly for any new volumes. (...

```

📁 `__init__.py` 🛁 📁, ✋️ ⚫️ 💬 🐍 👈 `sql_app` ⏮️ 🌐 🚮 🕹 (🐍 📁) 📦.

🔜 ➡️ 👀 ⚫️❔ 🔠 📁/🕹 🔨.

## ❎ `SQLAlchemy`

🥇 👆 💪 ❎ `SQLAlchemy`:

<div class="termy">

```console
$ pip install sqlalchemy

---> 100%
```

</div>

## ✍ 🇸🇲 🍕

➡️ 🔗 📁 `sql_app/database.py`.

### 🗄 🇸🇲 🍕

```Python hl_lines="1-3"
{!../../docs_src/sql_databases/sql_app/database.py!}

    copy of the library already present on the user's computer system,
    rather than copying library functions into the executable, and (2)
    will operate properly with a modified version of the library, if
    the user installs one, as long as the modified version is
    interface-compatible with the version that the work was made with.

    c) Accompany the work with a written offer, valid for at

    String ONLINE_HELP_BASE_LINK = "online.help.base.link";

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/{version}/install/install.html */
    String ONLINE_HELP_INSTALLATION = "online.help.installation";

    /** The key of the configuration. e.g. https://fess.codelibs.org/{lang}/eol.html */
    String ONLINE_HELP_EOL = "online.help.eol";

    server.useHttps(handshakeCertificates.sslSocketFactory())
    server.enqueue(MockResponse(body = "this response comes via HTTPS"))
    server.enqueue(MockResponse(body = "another response via HTTPS"))

    // install a custom SSL socket factory so the server can be authorized
    client =
      client.newBuilder()
        .sslSocketFactory(
          handshakeCertificates.sslSocketFactory(),

    └── schemas.py
```

该文件`__init__.py`只是一个空文件，但它告诉 Python `sql_app` 是一个包。

现在让我们看看每个文件/模块的作用。

## 安装 SQLAlchemy

首先你需要安装`SQLAlchemy`:

<div class="termy">

```console
$ pip install sqlalchemy

---> 100%
```

</div>

## 创建 SQLAlchemy 部件

让我们转到文件`sql_app/database.py`。

### 导入 SQLAlchemy 部件

```Python hl_lines="1-3"

    /** The key of the message: {0} is not found. */
    public static final String ERRORS_plugin_file_is_not_found = "{errors.plugin_file_is_not_found}";

    /** The key of the message: Failed to install {0}. */
    public static final String ERRORS_failed_to_install_plugin = "{errors.failed_to_install_plugin}";

    /** The key of the message: Failed to access available plugins. */