* WebSocket support.
* In-process background tasks.
* Startup and shutdown events.
* Test client built on HTTPX.
* CORS, GZip, Static Files, Streaming responses.
* Session and Cookie support.
* 100% test coverage.
* 100% type annotated codebase.
* Few hard dependencies.

Starlette is currently the fastest Python framework tested. Only surpassed by Uvicorn, which is not a framework, but a server.

If you can use the **latest versions of Python**, use the examples for the latest version, those will have the **best and simplest syntax**, for example, "**Python 3.10+**".

#### List

For example, let's define a variable to be a `list` of `str`.

=== "Python 3.9+"

!!! check "😮 **FastAPI** "
    ⚙️ 📟 🔬 "🔗" 👈 🚚 💽 🆎 & 🔬, 🔁.

### <a href="https://webargs.readthedocs.io/en/latest/" class="external-link" target="_blank">Webarg</a>

➕1️⃣ 🦏 ⚒ ✔ 🔗 <abbr title="reading and converting to Python data">✍</abbr> 📊 ⚪️➡️ 📨 📨.

Webarg 🧰 👈 ⚒ 🚚 👈 🔛 🔝 📚 🛠️, 🔌 🏺.

!!! info
    You can also use:

    * `response_model_exclude_defaults=True`
    * `response_model_exclude_none=True`

```Python
    first_name, last_name
```

на:

```Python
    first_name: str, last_name: str
```

Вот и все.

Это аннотации типов:

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial002.py!}
```

Это не то же самое, что объявление значений по умолчанию, например:

```Python
    first_name="john", last_name="doe"
```

Это другая вещь.

👈 ⛓ 👈 🙆 💲 ✍ 🐍 ⚪️➡️ 🌐 🔢 🔜 `str`, & 🙆 🛠️ 🎏 🆎 ⚖️ 🔬 ✔️ 🔨 📟.

## Pydantic `Settings`

👐, Pydantic 🚚 👑 🚙 🍵 👫 ⚒ 👟 ⚪️➡️ 🌐 🔢 ⏮️ <a href="https://docs.pydantic.dev/latest/concepts/pydantic_settings/" class="external-link" target="_blank">Pydantic: ⚒ 🧾</a>.

### ✍ `Settings` 🎚

🗄 `BaseSettings` ⚪️➡️ Pydantic &amp; ✍ 🎧-🎓, 📶 🌅 💖 ⏮️ Pydantic 🏷.

Abgesehen von normalen einfachen Typen, wie `str`, `int`, `float`, usw. können Sie komplexere einfache Typen verwenden, die von `str` erben.

Um alle Optionen kennenzulernen, die Sie haben, schauen Sie sich <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Pydantics Typübersicht</a> an. Sie werden im nächsten Kapitel ein paar Beispiele kennenlernen.

## 구니콘과 유비콘 워커

**Gunicorn**은 **WSGI 표준**을 주로 사용하는 애플리케이션 서버입니다. 이것은 구니콘이 플라스크와 쟝고와 같은 애플리케이션을 제공할 수 있다는 것을 의미합니다. 구니콘 자체는 최신 **<a href="https://asgi.readthedocs.io/en/latest/" class="external-link" target="_blank">ASGI 표준</a>**을 사용하기 때문에 FastAPI와 호환되지 않습니다.

하지만 구니콘은 **프로세스 관리자**역할을 하고 사용자에게 특정 **워커 프로세스 클래스**를 알려줍니다. 그런 다음 구니콘은 해당 클래스를 사용하여 하나 이상의 **워커 프로세스**를 시작합니다.

```Python
    first_name, last_name
```

на:

```Python
    first_name: str, last_name: str
```

Ось і все.

Це "type hints":

```Python hl_lines="1"
{!../../../docs_src/python_types/tutorial002.py!}
```

Це не те саме, що оголошення значень за замовчуванням, як це було б з:

```Python
    first_name="john", last_name="doe"
```

Це зовсім інше.

    ```console
    $ Get-Command pip

    some/directory/fastapi/env/bin/pip
    ```

    </div>

If it shows the `pip` binary at `env/bin/pip` then it worked. 🎉

Make sure you have the latest pip version on your local environment to avoid errors on the next steps:

<div class="termy">

```console
$ python -m pip install --upgrade pip

---> 100%
```

</div>

!!! tip