Pažljivo pročitaj kod

import asyncio


events: list[str] = []


async def worker(ready: asyncio.Event, name: str) -> None:
    events.append(f"{name} waiting")
    await ready.wait()
    events.append(f"{name} go")


async def main() -> None:
    ready = asyncio.Event()

    w1 = asyncio.create_task(worker(ready, "w1"))
    w2 = asyncio.create_task(worker(ready, "w2"))
    w3 = asyncio.create_task(worker(ready, "w3"))

    # Two scheduling ticks so all 3 workers reach their await ready.wait().
    await asyncio.sleep(0)
    await asyncio.sleep(0)

    events.append("setting event")
    ready.set()

    await asyncio.gather(w1, w2, w3)

    # Late waiter — event stays set, so this never blocks.
    events.append("late waiter")
    await ready.wait()
    events.append("late waiter past")

    print(f"event set: {ready.is_set()}")
    for e in events:
        print(e)


asyncio.run(main())

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