有个 `POST` 操作会返回一些错误。

所有*路径操作* 都需要一个`X-Token` 头。

//// tab | Python 3.10+

```Python
{!> ../../docs_src/app_testing/app_b_an_py310/main.py!}
```

////

//// tab | Python 3.9+

```Python
{!> ../../docs_src/app_testing/app_b_an_py39/main.py!}
```

////

//// tab | Python 3.8+

```Python
{!> ../../docs_src/app_testing/app_b_an/main.py!}
```

////

//// tab | Python 3.10+

```Python hl_lines="62-65"
{!> ../../docs_src/security/tutorial005_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="62-65"
{!> ../../docs_src/security/tutorial005_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="63-66"
{!> ../../docs_src/security/tutorial005_an.py!}

/// info | "Informação"

Para usar formulários, primeiro instale <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Ex: `pip install python-multipart`.

///

## Importe `Form`

Importe `Form` de `fastapi`:

```Python hl_lines="1"
{!../../docs_src/request_forms/tutorial001.py!}
```

## Declare parâmetros de `Form`

//// tab | Python 3.8 and above

```Python hl_lines="3  17"
{!> ../../docs_src/path_operation_configuration/tutorial001.py!}
```

////

//// tab | Python 3.9 and above

```Python hl_lines="3  17"
{!> ../../docs_src/path_operation_configuration/tutorial001_py39.py!}
```

////

//// tab | Python 3.10 and above

```Python hl_lines="1  15"

The same way, you can declare responses of lists of objects.

For that, use the standard Python `typing.List` (or just `list` in Python 3.9 and above):

//// tab | Python 3.9+

```Python hl_lines="18"
{!> ../../docs_src/extra_models/tutorial004_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="1  20"
{!> ../../docs_src/extra_models/tutorial004.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="9"
{!> ../../docs_src/dependencies/tutorial011_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="8"
{!> ../../docs_src/dependencies/tutorial011_an.py!}
```

////

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

/// tip | "Dica"

Это должен быть `list` состоящий из `Depends()`:

//// tab | Python 3.9+

```Python hl_lines="19"
{!> ../../docs_src/dependencies/tutorial006_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="18"
{!> ../../docs_src/dependencies/tutorial006_an.py!}
```

////

//// tab | Python 3.8 без Annotated

/// подсказка

### Виртуальное окружение с помощью `venv`

Находясь в нужной директории, Вы можете создать виртуальное окружение при помощи Python модуля `venv`.

<div class="termy">

```console
$ python -m venv env
```

</div>

Эта команда создаст директорию `./env/` с бинарными (двоичными) файлами Python, а затем Вы сможете скачивать и устанавливать необходимые библиотеки в изолированное виртуальное окружение.

👯‍♂️ *➡ 🛠️* 🚚 `X-Token` 🎚.

//// tab | 🐍 3️⃣.6️⃣ & 🔛

```Python
{!> ../../docs_src/app_testing/app_b/main.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python
{!> ../../docs_src/app_testing/app_b_py310/main.py!}
```

////

### ↔ 🔬 📁

👆 💪 ⤴️ ℹ `test_main.py` ⏮️ ↔ 💯:

```Python
{!> ../../docs_src/app_testing/app_b/test_main.py!}
```

It should be a `list` of `Depends()`:

//// tab | Python 3.9+

```Python hl_lines="19"
{!> ../../docs_src/dependencies/tutorial006_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="18"
{!> ../../docs_src/dependencies/tutorial006_an.py!}
```

////

//// tab | Python 3.8 non-Annotated

/// tip

Prefer to use the `Annotated` version if possible.