from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial011_py39"),
        pytest.param("tutorial011_py310", marks=needs_py310),
        pytest.param("tutorial011_an_py39"),
        pytest.param("tutorial011_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(

import importlib

import pytest
from fastapi.testclient import TestClient
from inline_snapshot import snapshot


@pytest.fixture(
    name="client",
    params=[
        "tutorial001_an_py39",
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(
        f"docs_src.authentication_error_status_code.{request.param}"
    )

    client = TestClient(mod.app)
    return client

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        "tutorial002_py39",
        pytest.param("tutorial002_py310", marks=needs_py310),
        "tutorial002_an_py39",
        pytest.param("tutorial002_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.background_tasks.{request.param}")

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial005_py39"),
        pytest.param("tutorial005_an_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(
        f"docs_src.query_params_str_validations.{request.param}"
    )

    client = TestClient(mod.app)
    return client

Let's first just use the code and see how it works, and then we'll come back to understand what's happening.

## Create `main.py` { #create-main-py }

Copy the example in a file `main.py`:

{* ../../docs_src/security/tutorial001_an_py39.py *}

## Run it { #run-it }

/// info

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[9] *}

In this case, **FastAPI** won't ever touch or care about `__init__`, we will use it directly in our code.

## Create an instance { #create-an-instance }

We could create an instance of this class with:

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[18] *}

For example, you can create a subclass of `HTTPBearer` that returns a `403 Forbidden` error instead of the default `401 Unauthorized` error:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip

Notice that the function returns the exception instance, it doesn't raise it. The raising is done in the rest of the internal code.

Por exemplo, você pode criar uma subclasse de `HTTPBearer` que retorne um erro `403 Forbidden` em vez do erro padrão `401 Unauthorized`:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip | Dica

Perceba que a função retorna a instância da exceção, ela não a lança. O lançamento é feito no restante do código interno.

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial005_py39"),
        pytest.param("tutorial005_py310", marks=needs_py310),
        pytest.param("tutorial005_an_py39"),
        pytest.param("tutorial005_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.dependencies.{request.param}")

Сначала просто воспользуемся кодом и посмотрим, как он работает, а затем вернемся и разберемся, что происходит.

## Создание `main.py` { #create-main-py }

Скопируйте пример в файл `main.py`:

{* ../../docs_src/security/tutorial001_an_py39.py *}

## Запуск { #run-it }

/// info | Дополнительная информация