В этом же разделе, но позже, я покажу вам пример использования Poetry. 👇

### Создать приложение **FastAPI**

* Создайте директорию `app` и перейдите в неё.
* Создайте пустой файл `__init__.py`.
* Создайте файл `main.py` и заполните его:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():

### Den **FastAPI**-Code erstellen

* Erstellen Sie ein `app`-Verzeichnis und betreten Sie es.
* Erstellen Sie eine leere Datei `__init__.py`.
* Erstellen Sie eine `main.py`-Datei mit:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():

</div>

!!! info
    There are other formats and tools to define and install package dependencies.

### Create the **FastAPI** Code

* Create an `app` directory and enter it.
* Create an empty file `__init__.py`.
* Create a `main.py` file with:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():

    Eu vou mostrar um exemplo depois usando Poetry em uma seção abaixo. 👇

### Criando o Código do **FastAPI**

* Crie um diretório `app` e entre nele.
* Crie um arquivo vazio `__init__.py`.
* Crie um arquivo `main.py` com:

```Python
from typing import Optional

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():

<font color="#3465A4">INFO    </font> Searching for package file structure from directories with <font color="#3465A4">__init__.py</font> files
<font color="#3465A4">INFO    </font> Importing from <font color="#75507B">/home/user/code/</font><font color="#AD7FA8">awesomeapp</font>

 ╭─ <font color="#8AE234"><b>Python module file</b></font> ─╮

```

Und dann verwenden Sie diese in einer Datei `main.py`:

```Python hl_lines="3  11-13"
{!../../../docs_src/settings/app01/main.py!}
```

!!! tip "Tipp"
    Sie benötigen außerdem eine Datei `__init__.py`, wie in [Größere Anwendungen – mehrere Dateien](../tutorial/bigger-applications.md){.internal-link target=_blank} gesehen.

## Einstellungen in einer Abhängigkeit

Successfully installed fastapi pydantic uvicorn
```

</div>

!!! info
     还有其他文件格式和工具来定义和安装依赖项。

     我将在下面的部分中向你展示一个使用 Poetry 的示例。 👇

### 创建 **FastAPI** 代码

* 创建`app`目录并进入。
* 创建一个空文件`__init__.py`。
* 创建一个 `main.py` 文件：



```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():

```Python
{!../../../docs_src/settings/app01/config.py!}
```

& ⤴️ ⚙️ ⚫️ 📁 `main.py`:

```Python hl_lines="3  11-13"
{!../../../docs_src/settings/app01/main.py!}
```

!!! tip
    👆 🔜 💪 📁 `__init__.py` 👆 👀 🔛 [🦏 🈸 - 💗 📁](../tutorial/bigger-applications.md){.internal-link target=_blank}.

## ⚒ 🔗

🍾 ⚫️ 5️⃣📆 ⚠ 🚚 ⚒ ⚪️➡️ 🔗, ↩️ ✔️ 🌐 🎚 ⏮️ `settings` 👈 ⚙️ 🌐.

{!../../../docs_src/settings/app01/config.py!}
```

And then use it in a file `main.py`:

```Python hl_lines="3  11-13"
{!../../../docs_src/settings/app01/main.py!}
```

!!! tip
    You would also need a file `__init__.py` as you saw in [Bigger Applications - Multiple Files](../tutorial/bigger-applications.md){.internal-link target=_blank}.

## Settings in a dependency

```Python
{!../../../docs_src/settings/app01/config.py!}
```

然后在一个名为 `main.py` 的文件中使用它：

```Python hl_lines="3  11-13"
{!../../../docs_src/settings/app01/main.py!}
```
!!! tip
    您还需要一个名为 `__init__.py` 的文件，就像您在[Bigger Applications - Multiple Files](../tutorial/bigger-applications.md){.internal-link target=_blank}中看到的那样。

## 在依赖项中使用设置

在某些情况下，从依赖项中提供设置可能比在所有地方都使用全局对象 `settings` 更有用。