```

////

//// tab | Python 3.10+ 没Annotated

/// tip

尽可能选择使用 `Annotated` 的版本。

///

```Python hl_lines="11  13  20  23"
{!> ../../docs_src/background_tasks/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+ 没Annotated

/// tip

尽可能选择使用 `Annotated` 的版本。

///

```Python hl_lines="13  15  22  25"

from dirty_equals import IsDict
from fastapi.testclient import TestClient

from ...utils import needs_py310


@pytest.fixture(name="client")
def get_client():
    from docs_src.query_params_str_validations.tutorial010_py310 import app

    client = TestClient(app)
    return client


@needs_py310
def test_query_params_str_validations_no_query(client: TestClient):
    response = client.get("/items/")

```

////

//// tab | Python 3.10+ 非带注解版本

/// tip

如果可能，请尽量使用 `Annotated` 版本。

///

```Python hl_lines="66-67  79"
{!> ../../docs_src/websockets/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+ 非带注解版本

/// tip

如果可能，请尽量使用 `Annotated` 版本。

///

```Python hl_lines="68-69  81"
{!> ../../docs_src/websockets/tutorial002.py!}

from fastapi.testclient import TestClient
from fastapi.websockets import WebSocketDisconnect

from ...utils import needs_py310


@pytest.fixture(name="app")
def get_app():
    from docs_src.websockets.tutorial002_py310 import app

    return app


@needs_py310
def test_main(app: FastAPI):
    client = TestClient(app)
    response = client.get("/")
    assert response.status_code == 200, response.text

from fastapi.testclient import TestClient

from ...utils import needs_py310, needs_pydanticv1, needs_pydanticv2


@pytest.fixture(name="client")
def get_client():
    from docs_src.path_operation_configuration.tutorial005_py310 import app

    client = TestClient(app)
    return client


@needs_py310
def test_query_params_str_validations(client: TestClient):
    response = client.post("/items/", json={"name": "Foo", "price": 42})

```Python hl_lines="13  15  22  25"
{!> ../../docs_src/background_tasks/tutorial002.py!}
```

////

//// tab | 🐍 3️⃣.1️⃣0️⃣ & 🔛

```Python hl_lines="11  13  20  23"
{!> ../../docs_src/background_tasks/tutorial002_py310.py!}
```

////

👉 🖼, 📧 🔜 ✍ `log.txt` 📁 *⏮️* 📨 📨.

🚥 📤 🔢 📨, ⚫️ 🔜 ✍ 🕹 🖥 📋.

& ⤴️ ➕1️⃣ 🖥 📋 🏗 *➡ 🛠️ 🔢* 🔜 ✍ 📧 ⚙️ `email` ➡ 🔢.

## 📡 ℹ

import pytest
from dirty_equals import IsDict
from fastapi.testclient import TestClient

from ...utils import needs_py310


@pytest.fixture(name="client")
def get_client():
    from docs_src.security.tutorial003_py310 import app

    client = TestClient(app)
    return client


@needs_py310
def test_login(client: TestClient):
    response = client.post("/token", data={"username": "johndoe", "password": "secret"})

//// tab | Python 3.10+

```Python hl_lines="11  13  20  23"
{!> ../../docs_src/background_tasks/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="13  15  22  25"
{!> ../../docs_src/background_tasks/tutorial002.py!}
```

////

////

//// tab | Python 3.10+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="11  13  20  23"
{!> ../../docs_src/background_tasks/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="13  15  22  25"

////

//// tab | Python 3.10+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="66-67  79"
{!> ../../docs_src/websockets/tutorial002_py310.py!}
```

////

//// tab | Python 3.8+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="68-69  81"