///

### 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():

```

E utilizar essa configuração em `main.py`:

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

/// dica

Você também precisa incluir um arquivo `__init__.py` como visto em [Bigger Applications - Multiple Files](../tutorial/bigger-applications.md){.internal-link target=\_blank}.

///

## Configurações em uma dependência

```

</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():

author_link: https://pythonbytes.fm/ link: https://www.pythonpodcast.com/fastapi-web-application-framework-episode-259/ title: 'Do you dare to press "."? - Episode 247 - Dan #6: SQLModel - use the same models for SQL and FastAPI' - author: Podcast.`__init__` author_link: https://www.pythonpodcast.com/ link: https://www.pythonpodcast.com/fastapi-web-application-framework-episode-259/ title: Build The Next Generation Of Python Web Applications With FastAPI - Episode 259 - interview to Sebastían Ramírez...

```

</div>

/// info | "정보"

패키지 종속성을 정의하고 설치하기 위한 방법과 도구는 다양합니다.

나중에 아래 세션에서 Poetry를 사용한 예시를 보이겠습니다. 👇

///

### **FastAPI** 코드 생성하기

* `app` 디렉터리를 생성하고 이동합니다.
* 빈 파일 `__init__.py`을 생성합니다.
* 다음과 같은 `main.py`을 생성합니다:

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


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

```

</div>

/// info

パッケージの依存関係を定義しインストールするためのフォーマットやツールは他にもあります。

Poetryを使った例は、後述するセクションでご紹介します。👇

///

### **FastAPI**コードを作成する

* `app` ディレクトリを作成し、その中に入ります
* 空のファイル `__init__.py` を作成します
* `main.py` ファイルを作成します：

```Python
from typing import Union

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}

    [FastAPI docs for First Steps](https://fastapi.tiangolo.com/tutorial/first-steps/).

    ## Example

    ```python
    from fastapi import FastAPI

    app = FastAPI()
    ```
    """

    def __init__(
        self: AppType,
        *,
        debug: Annotated[
            bool,
            Doc(
                """
                Boolean indicating if debug tracebacks should be returned on server

async def contextmanager_in_threadpool(
    cm: ContextManager[_T],
) -> AsyncGenerator[_T, None]:
    # blocking __exit__ from running waiting on a free thread
    # can create race conditions/deadlocks if the context manager itself
    # has its own internal pool (e.g. a database connection pool)
    # to avoid this we let __exit__ run without a capacity limit
    # since we're creating a new limiter for each call, any non-zero limit

        not be loaded due to selective registration.
    *   Add a new experimental argument `experimental_is_anonymous` to
        `tf.lookup.StaticHashTable.__init__` to create the table in anonymous
        mode. In this mode, the table resource can only be accessed via resource
        handles (not resource names) and will be deleted automatically when all

🚥 👆 ▶️ ⏮️ **FastAPI** 👆 💪 💚 🚶 ⚫️ 🔜.

///

🐍, 👆 💪 ✍ 🔑 👨‍💼 <a href="https://docs.python.org/3/reference/datamodel.html#context-managers" class="external-link" target="_blank">🏗 🎓 ⏮️ 2️⃣ 👩‍🔬: `__enter__()` &amp; `__exit__()`</a>.

👆 💪 ⚙️ 👫 🔘 **FastAPI** 🔗 ⏮️ `yield` ⚙️
`with` ⚖️ `async with` 📄 🔘 🔗 🔢:

```Python hl_lines="1-9  13"
{!../../docs_src/dependencies/tutorial010.py!}
```

/// tip