///

## Without Pydantic { #without-pydantic }

* Data conversion
* Data validation
* Automatic documentation

## Special types and validation { #special-types-and-validation }

Apart from normal singular types like `str`, `int`, `float`, etc. you can use more complex singular types that inherit from `str`.

To see all the options you have, checkout [Pydantic's Type Overview](https://docs.pydantic.dev/latest/concepts/types/). You will see some examples in the next chapter.

Example:

Source (English):

```
[Body - Multiple Parameters: Singular values in body](body-multiple-params.md#singular-values-in-body){.internal-link target=_blank}
```

Existing wrong translation (German) - notice the wrongly translated anchor fragment:

```

但添加这些类型注解可以让你的编辑器提供更好的支持并检测错误。

///

## 不使用 Pydantic { #without-pydantic }

### `scope` { #scope }

The spec also says that the client can send another form field "`scope`".

The form field name is `scope` (in singular), but it is actually a long string with "scopes" separated by spaces.

Each "scope" is just a string (without spaces).

They are normally used to declare specific security permissions, for example:

///

### Step 5: return the content { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[8] *}

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

You can also return Pydantic models (you'll see more about that later).

Los parámetros de la función se reconocerán de la siguiente manera:

* Si el parámetro también se declara en el **path**, se utilizará como un parámetro de path.
* Si el parámetro es de un **tipo singular** (como `int`, `float`, `str`, `bool`, etc.), se interpretará como un parámetro de **query**.
* Si el parámetro se declara como del tipo de un **modelo de Pydantic**, se interpretará como un **body** de request.

/// note | Nota

///

## Pydantic olmadan { #without-pydantic }

하지만 타입 어노테이션을 추가하면 편집기가 더 나은 지원을 제공하고 오류를 감지할 수 있습니다.

///

## Pydantic없이 { #without-pydantic }

Ohne Pydantic { #without-pydantic }

Wenn Sie keine Pydantic-Modelle verwenden möchten, können Sie auch **Body**-Parameter verwenden. Siehe die Dokumentation unter [Body – Mehrere Parameter: Einfache Werte im Body](body-multiple-params.md#singular-values-in-body)....