Leggi il codice attentamente

import asyncio


events: list[str] = []


async def critical(lock: asyncio.Lock, name: str, work: float) -> None:
    async with lock:
        events.append(f"{name} acquired")
        await asyncio.sleep(work)
        events.append(f"{name} releasing")


async def main() -> None:
    lock = asyncio.Lock()
    await asyncio.gather(
        critical(lock, "A", 0.02),
        critical(lock, "B", 0.01),
        critical(lock, "C", 0.01),
    )
    for e in events:
        print(e)


asyncio.run(main())

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