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  1. tests/test_dependency_contextvars.py

    
    client = TestClient(app)
    
    
    def test_dependency_contextvars():
        """
        Check that custom middlewares don't affect the contextvar context for dependencies.
    
        The code before yield and the code after yield should be run in the same contextvar
        context, so that request_state_context_var.reset(contextvar_token).
    
        If they are run in a different context, that raises an error.
        """
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 21:25:59 UTC 2025
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  2. tests/test_exception_handlers.py

        }
    )
    
    client = TestClient(app)
    
    
    def raise_value_error():
        raise ValueError()
    
    
    def dependency_with_yield():
        yield raise_value_error()
    
    
    @app.get("/dependency-with-yield", dependencies=[Depends(dependency_with_yield)])
    def with_yield(): ...
    
    
    @app.get("/http-exception")
    def route_with_http_exception():
        raise HTTPException(status_code=400)
    
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Tue Dec 03 22:37:12 UTC 2024
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  3. docs/de/docs/advanced/events.md

    Das Erste, was auffällt, ist, dass wir eine asynchrone Funktion mit `yield` definieren. Das ist sehr ähnlich zu Abhängigkeiten mit `yield`.
    
    {* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}
    
    Der erste Teil der Funktion, vor dem `yield`, wird ausgeführt **bevor** die Anwendung startet.
    
    Und der Teil nach `yield` wird ausgeführt, **nachdem** die Anwendung beendet ist.
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 20:41:43 UTC 2025
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  4. docs/es/docs/advanced/events.md

    Lo primero que hay que notar es que estamos definiendo una función asíncrona con `yield`. Esto es muy similar a las Dependencias con `yield`.
    
    {* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}
    
    La primera parte de la función, antes del `yield`, será ejecutada **antes** de que la aplicación comience.
    
    Y la parte después del `yield` será ejecutada **después** de que la aplicación haya terminado.
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 20:41:43 UTC 2025
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  5. docs_src/dependencies/tutorial008_py39.py

        dep_a = generate_dep_a()
        try:
            yield dep_a
        finally:
            dep_a.close()
    
    
    async def dependency_b(dep_a=Depends(dependency_a)):
        dep_b = generate_dep_b()
        try:
            yield dep_b
        finally:
            dep_b.close(dep_a)
    
    
    async def dependency_c(dep_b=Depends(dependency_b)):
        dep_c = generate_dep_c()
        try:
            yield dep_c
        finally:
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 20:41:43 UTC 2025
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  6. tests/test_dependency_contextmanager.py

        pass
    
    
    async def asyncgen_state(state: dict[str, str] = Depends(get_state)):
        state["/async"] = "asyncgen started"
        yield state["/async"]
        state["/async"] = "asyncgen completed"
    
    
    def generator_state(state: dict[str, str] = Depends(get_state)):
        state["/sync"] = "generator started"
        yield state["/sync"]
        state["/sync"] = "generator completed"
    
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 21:25:59 UTC 2025
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  7. tests/test_dependency_class.py

    class CallableGenDependency:
        def __call__(self, value: str) -> Generator[str, None, None]:
            yield value
    
    
    class AsyncCallableDependency:
        async def __call__(self, value: str) -> str:
            return value
    
    
    class AsyncCallableGenDependency:
        async def __call__(self, value: str) -> AsyncGenerator[str, None]:
            yield value
    
    
    class MethodsDependency:
        def synchronous(self, value: str) -> str:
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 21:25:59 UTC 2025
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  8. docs/zh/docs/advanced/events.md

    可能你需要启动一个新版本,或者你只是你厌倦了运行它。 🤷
    
    ///
    
    ## 生命周期函数
    
    首先要注意的是,我们定义了一个带有 `yield` 的异步函数。这与带有 `yield` 的依赖项非常相似。
    
    ```Python hl_lines="14-19"
    {!../../docs_src/events/tutorial003.py!}
    ```
    
    这个函数在 `yield`之前的部分,会在应用启动前执行。
    
    剩下的部分在 `yield` 之后,会在应用完成后执行。
    
    ## 异步上下文管理器
    
    如你所见,这个函数有一个装饰器 `@asynccontextmanager` 。
    
    它将函数转化为所谓的“**异步上下文管理器**”。
    
    ```Python hl_lines="1  13"
    {!../../docs_src/events/tutorial003.py!}
    ```
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Sat Oct 11 17:48:49 UTC 2025
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  9. docs_src/dependencies/tutorial014_an_py310.py

    def get_session():
        with Session(engine) as session:
            yield session
    
    
    def get_user(user_id: int, session: Annotated[Session, Depends(get_session)]):
        user = session.get(User, user_id)
        if not user:
            raise HTTPException(status_code=403, detail="Not authorized")
        session.close()
    
    
    def generate_stream(query: str):
        for ch in query:
            yield ch
            time.sleep(0.1)
    
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Mon Sep 29 03:29:38 UTC 2025
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  10. docs/ru/docs/advanced/events.md

    ### Функция lifespan { #lifespan-function }
    
    Первое, на что стоит обратить внимание, — мы определяем асинхронную функцию с `yield`. Это очень похоже на Зависимости с `yield`.
    
    {* ../../docs_src/events/tutorial003_py39.py hl[14:19] *}
    
    Первая часть функции, до `yield`, будет выполнена до запуска приложения.
    
    А часть после `yield` будет выполнена после завершения работы приложения.
    
    ### Асинхронный менеджер контекста { #async-context-manager }
    
    Registered: Sun Dec 28 07:19:09 UTC 2025
    - Last Modified: Wed Dec 17 20:41:43 UTC 2025
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