Начиная с Python 3.7

Библиотека Python разработчика | Книги по питону

Начиная с Python 3.7, модуль contextlib предоставляет декоратор asynccontextmanager, который позволяет определять асинхронные контекстные менеджеры точно так же, как contextmanager:


import asyncio
from contextlib import asynccontextmanager

@asynccontextmanager
async def slow(delay):
    half = delay / 2
    await asyncio.sleep(half)
    yield
    await asyncio.sleep(half)

async def main():
    async with slow(1):
        print('slow')

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Для более старых версий Python можно использовать @asyncio_extras.async_contextmanager.

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Create: 2025-06-25
Last Update: 2025-07-05 03:40:03


import asyncio
from contextlib import asynccontextmanager

@asynccontextmanager
async def slow(delay):
    half = delay / 2
    await asyncio.sleep(half)
    yield
    await asyncio.sleep(half)

async def main():
    async with slow(1):
        print('slow')

loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Для более старых версий Python можно использовать @asyncio_extras.async_contextmanager.

👉@BookPython

BY Библиотека Python разработчика | Книги по питону

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