"docs_src/security/tutorial004_an.py" = ["B904"]
"docs_src/security/tutorial004_an_py310.py" = ["B904"]
"docs_src/security/tutorial004_an_py39.py" = ["B904"]
"docs_src/security/tutorial004_py310.py" = ["B904"]
"docs_src/security/tutorial005.py" = ["B904"]
"docs_src/security/tutorial005_an.py" = ["B904"]
"docs_src/security/tutorial005_an_py310.py" = ["B904"]
"docs_src/security/tutorial005_an_py39.py" = ["B904"]

## `Path` importieren

Importieren Sie zuerst `Path` von `fastapi`, und importieren Sie `Annotated`.

//// tab | Python 3.10+

```Python hl_lines="1  3"
{!> ../../docs_src/path_params_numeric_validations/tutorial001_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="1  3"
{!> ../../docs_src/path_params_numeric_validations/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

Здесь мы передаём аргумент `example`, как пример данных ожидаемых в параметре `Body()`:

//// tab | Python 3.10+

```Python hl_lines="22-27"
{!> ../../docs_src/schema_extra_example/tutorial003_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="22-27"
{!> ../../docs_src/schema_extra_example/tutorial003_an_py39.py!}
```

////

//// tab | Python 3.8+

from ...utils import needs_py310


@needs_py310
def test_override_in_items_run():
    from docs_src.dependency_testing.tutorial001_an_py310 import test_override_in_items

    test_override_in_items()


@needs_py310
def test_override_in_items_with_q_run():
    from docs_src.dependency_testing.tutorial001_an_py310 import (
        test_override_in_items_with_q,
    )

    test_override_in_items_with_q()


@needs_py310

## First dependency "dependable"

You could create a first dependency ("dependable") like:

//// tab | Python 3.10+

```Python hl_lines="8-9"
{!> ../../docs_src/dependencies/tutorial005_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="8-9"
{!> ../../docs_src/dependencies/tutorial005_an_py39.py!}
```

////

//// tab | Python 3.8+

First, import `OAuth2PasswordRequestForm`, and use it as a dependency with `Depends` in the *path operation* for `/token`:

//// tab | Python 3.10+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py39.py!}
```

////

//// tab | Python 3.8+

Importieren Sie zunächst `OAuth2PasswordRequestForm` und verwenden Sie es als Abhängigkeit mit `Depends` in der *Pfadoperation* für `/token`:

//// tab | Python 3.10+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="4  78"
{!> ../../docs_src/security/tutorial003_an_py39.py!}
```

////

//// tab | Python 3.8+

## Імпорт `Field`

Спочатку вам потрібно імпортувати це:

//// tab | Python 3.10+

```Python hl_lines="4"
{!> ../../docs_src/body_fields/tutorial001_an_py310.py!}
```

////

//// tab | Python 3.9+

```Python hl_lines="4"
{!> ../../docs_src/body_fields/tutorial001_an_py39.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="4"

{* ../../docs_src/security/tutorial005_an_py310.py hl[5,9,13,47,65,106,108:116,122:125,129:135,140,156] *}

Now let's review those changes step by step.

## OAuth2 Security scheme

Primero importa `Cookie`:

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[3]*}

## Declarar parámetros de `Cookie`

Luego declara los parámetros de cookie usando la misma estructura que con `Path` y `Query`.

El primer valor es el valor por defecto, puedes pasar todos los parámetros adicionales de validación o anotación:

{* ../../docs_src/cookie_params/tutorial001_an_py310.py hl[9]*}

/// note | "Detalles Técnicos"