import os
from typing import Any, Dict, List

from pdm.backend.hooks import Context

TIANGOLO_BUILD_PACKAGE = os.getenv("TIANGOLO_BUILD_PACKAGE", "fastapi")


def pdm_build_initialize(context: Context) -> None:
    metadata = context.config.metadata
    # Get custom config for the current package, from the env var
    config: Dict[str, Any] = context.config.data["tool"]["tiangolo"][
        "_internal-slim-build"

* Initialize French translations. PR [#1975](https://github.com/tiangolo/fastapi/pull/1975) by [@JulianMaurin-BM](https://github.com/JulianMaurin-BM).
* Initialize Turkish translations. PR [#1905](https://github.com/tiangolo/fastapi/pull/1905) by [@ycd](https://github.com/ycd).

### Internal

```Python hl_lines="8"
{!../../../docs_src/events/tutorial001.py!}
```

In this case, the `startup` event handler function will initialize the items "database" (just a `dict`) with some values.

You can add more than one event handler function.

And your application won't start receiving requests until all the `startup` event handlers have completed.

    ```

=== "Python 3.8+"

    ```Python hl_lines="9"
    {!> ../../../docs_src/sql_databases/sql_app/main.py!}
    ```

#### Alembic Note

Normally you would probably initialize your database (create tables, etc) with <a href="https://alembic.sqlalchemy.org/en/latest/" class="external-link" target="_blank">Alembic</a>.

And you would also use Alembic for "migrations" (that's its main job).

<div class="termy">

```console
// Verwenden Sie das Kommando new-lang und fügen Sie den Sprach-Code als Argument hinten an
$ python ./scripts/docs.py new-lang ht

Successfully initialized: docs/ht
```

</div>

Jetzt können Sie in Ihrem Code-Editor das neu erstellte Verzeichnis `docs/ht/` sehen.

下一步是运行脚本以生成新的翻译目录：

<div class="termy">

```console
// Use the command new-lang, pass the language code as a CLI argument
$ python ./scripts/docs.py new-lang ht

Successfully initialized: docs/ht
```

</div>

现在，你可以在编辑器中查看新创建的目录 `docs/ht/`。

这条命令会生成一个从 `en` 版本继承了所有属性的配置文件 `docs/ht/mkdocs.yml`:

```yaml
INHERIT: ../en/mkdocs.yml
```

!!! tip