On Thu, Jun 14, 2018 at 10:03 PM Steve Dower <steve.do...@python.org> wrote:
> I often use > semaphores for this when I need it, and it looks like > asyncio.Semaphore() is sufficient for this: > > > import asyncio > task_limiter = asyncio.Semaphore(4) > > async def my_task(): > await task_limiter.acquire() > try: > await do_db_request() > finally: > task_limiter.release() Yeah, a semaphore logically fits exactly but * I feel this API is somewhat clunky, even if you use an 'async with'. * my gut feeling is spawning a thousand tasks and having them all fighting over the same semaphore and scheduling is going to be much less efficient than a small number of tasks draining a queue.
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