from collections.abc import Generator
from contextlib import contextmanager
from typing import Annotated, Any

import pytest
from fastapi import Depends, FastAPI, WebSocket
from fastapi.testclient import TestClient


class Session:
    def __init__(self) -> None:
        self.data = ["foo", "bar", "baz"]
        self.open = True

    def __iter__(self) -> Generator[str, None, None]:
        for item in self.data:

from collections.abc import Generator
from contextlib import contextmanager
from typing import Annotated, Any

import pytest
from fastapi import Depends, FastAPI
from fastapi.responses import StreamingResponse
from fastapi.testclient import TestClient


class Session:
    def __init__(self) -> None:
        self.data = ["foo", "bar", "baz"]
        self.open = True

    def __iter__(self) -> Generator[str, None, None]:

{* ../../docs_src/dependencies/tutorial010_py310.py hl[1:9,13] *}

/// tip | Tipp

Andere Möglichkeiten, einen Kontextmanager zu erstellen, sind:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) oder
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

Vous devez vous assurer d'utiliser `yield` une seule fois par dépendance.

///

/// note | Détails techniques

Toute fonction valide à utiliser avec :

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) ou
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

sera valide comme dépendance **FastAPI**.

Her dependency için yalnızca bir kez `yield` kullandığınızdan emin olun.

///

/// note | Teknik Detaylar

Şunlarla kullanılabilen herhangi bir fonksiyon:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) veya
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

bir **FastAPI** dependency'si olarak kullanılabilir.

Переконайтесь, що ви використовуєте `yield` лише один раз на залежність.

///

/// note | Технічні деталі

Будь-яка функція, яку можна використовувати з:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) або
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

буде придатною як залежність у **FastAPI**.

/// tip

Make sure to use `yield` one single time per dependency.

///

/// note | Technical Details

Any function that is valid to use with:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) or
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

would be valid to use as a **FastAPI** dependency.

Убедитесь, что используете `yield` только один раз на одну зависимость.

///

/// note | Технические детали

Любая функция, с которой можно корректно использовать:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) или
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

Garanta utilizar `yield` apenas uma vez por dependência.

///

/// note | Detalhes Técnicos

Qualquer função que possa ser utilizada com:

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) ou
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

pode ser utilizada como uma dependência do **FastAPI**.

为此，使用 `yield` 而不是 `return`，并把这些额外步骤（代码）写在后面。

/// tip | 提示

确保在每个依赖里只使用一次 `yield`。

///

/// note | 技术细节

任何可以与以下装饰器一起使用的函数：

* [`@contextlib.contextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager) 或
* [`@contextlib.asynccontextmanager`](https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager)

都可以作为 **FastAPI** 的依赖项。

实际上，FastAPI 在内部就是用的这两个装饰器。