//// tab | python 3.9+

```python hl_lines="6  14  22"
{!> ../../docs_src/dependencies/tutorial008_an_py39.py!}
```

////

//// tab | python 3.8+

```python hl_lines="5  13  21"
{!> ../../docs_src/dependencies/tutorial008_an.py!}
```

////

//// tab | python 3.8+ non-annotated

/// tip | "Dica"

///

## `Form` importieren

Importieren Sie `Form` von `fastapi`:

//// tab | Python 3.9+

```Python hl_lines="3"
{!> ../../docs_src/request_forms/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="1"
{!> ../../docs_src/request_forms/tutorial001_an.py!}
```

////

//// tab | Python 3.8+ nicht annotiert

/// tip | "Tipp"

# 🎧-🔗

👆 💪 ✍ 🔗 👈 ✔️ **🎧-🔗**.

👫 💪 **⏬** 👆 💪 👫.

**FastAPI** 🔜 ✊ 💅 🔬 👫.

## 🥇 🔗 "☑"

👆 💪 ✍ 🥇 🔗 ("☑") 💖:

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python hl_lines="8-9"
{!> ../../docs_src/dependencies/tutorial005.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="6-7"
{!> ../../docs_src/dependencies/tutorial005_py310.py!}
```

////

Now we create a dependency that returns a new `config.Settings()`.

//// tab | Python 3.9+

```Python hl_lines="6  12-13"
{!> ../../docs_src/settings/app02_an_py39/main.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="6  12-13"
{!> ../../docs_src/settings/app02_an/main.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip

例如，`dependency_c` 可以依赖于 `dependency_b`，而 `dependency_b` 则依赖于 `dependency_a`。

//// tab | Python 3.9+

```Python hl_lines="6  14  22"
{!> ../../docs_src/dependencies/tutorial008_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="5  13  21"
{!> ../../docs_src/dependencies/tutorial008_an.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip | 提示

如果可以，请尽量使用 `Annotated` 版本。

Ниже изложена основная идея того, как могут выглядеть эти модели с полями для паролей, а также описаны места, где они используются:

//// tab | Python 3.10+

```Python hl_lines="7  9  14  20  22  27-28  31-33  38-39"
{!> ../../docs_src/extra_models/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="9  11  16  22  24  29-30  33-35  40-41"
{!> ../../docs_src/extra_models/tutorial001.py!}
```

Aqui está uma ideia geral de como os modelos poderiam parecer com seus campos de senha e os lugares onde são usados:

//// tab | Python 3.8 and above

```Python hl_lines="9  11  16  22  24  29-30  33-35  40-41"
{!> ../../docs_src/extra_models/tutorial001.py!}
```

////

//// tab | Python 3.10 and above

```Python hl_lines="7  9  14  20  22  27-28  31-33  38-39"
{!> ../../docs_src/extra_models/tutorial001_py310.py!}

    * Isto contém o `username` e o `password` enviado.

//// tab | Python 3.9+

```Python hl_lines="4  8  12"
{!> ../../docs_src/security/tutorial006_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="2  7  11"
{!> ../../docs_src/security/tutorial006_an.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip | "Dica"

## Optional parameters

The same way, you can declare optional query parameters, by setting their default to `None`:

//// tab | Python 3.10+

```Python hl_lines="7"
{!> ../../docs_src/query_params/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="9"
{!> ../../docs_src/query_params/tutorial002.py!}
```

////

//// tab | Python 3.10+

```Python hl_lines="9-12  16"
{!> ../../docs_src/cookie_param_models/tutorial001_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="9-12  16"
{!> ../../docs_src/cookie_param_models/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="10-13  17"