Функция asyncio.wait() это еще один способ вызвать множество асинхронных задач.
Она работает в нескольких режимах.
1. Самый простой - ждем завершения всех задач
async def main():
tasks = [asyncio.create_task(do_it(i)) for i in range(10)]
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.ALL_COMPLETED
)
for task in done:
try:
print(task.result())
except Exception as e:
print(e)
Очень похоже на gather, но работает не так.
▫️возвращает не результаты, а два сета с объектами Task у которых можно забрать результат через task.result() если они в списке done
▫️не гарантирует порядок результатов так как оба объекта это set
▫️не выбрасывает исключение когда оно появляется, а сохраняет его в Task. Исключение появится когда попробуете забрать резултьтат.
2. Ждем завершения первой задачи, даже если там ошибка.
async def main():
tasks = [asyncio.create_task(do_it(i)) for i in range(3)]
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.FIRST_COMPLETED
)
# в done может быть несколько задач!
for task in done:
try:
print(task.result())
except Exception as e:
print(f"Fail: {e}")
# Оставшиеся задачи в pending, как правило, нужно отменить, иначе они будут продолжать работать
for task in pending:
task.cancel()
В сете done будут таски которые успели завершится, причем как успешно так и нет.
3. До первой ошибки.
Тоже самое, но с аргументом FIRST_EXCEPTION
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.FIRST_EXCEPTION
)
Функция завершается как только первая задача упадет с ошибкой.
Учтите, что в любом случае done вы можете обранужить несколько задач, как с ошибками так и успешные.
↗️ Полный листинг примеров здесь
#async
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Pump result: Today's pump on Kucoin shocked us all with the massive volume, this was expected as we onboarded over 30,000 members in the past two weeks. However, due to unprecedented sell pressure from the #HALO team, we had expected a much larger rise in price. In fact internally we had discussed that we will be targeting around 900-1000% which we still tried to achieve with our team buying endless amounts after the first few minutes to guarantee that our members make good enough profit . Nonetheless, member's managed to profit over 150% during the signal, and with the support of our team we even managed to provide a second and third wave for extra profits which means anyone that has bought the dips during the signal had the chance to instantly make a lot of profits! We are receiving an overwhelming amount of positive messages from our community and we're happy to hear so many of you profited.
From this point on, our signals will only get stronger, and you can be confident that we will use all the power we have to keep reaching higher targets. As the majority of you are aware, our greatest pump to date generated a profit for our members of around 2000%, and now our primary focus is to see if we can repeat that sort of pump. It will be quite easy to accomplish with our existing power. It can happen once again if we don't face any sell pressure coming from the coin team itself which is something that can be hard to avoid at times, hopefully we can achieve that result once again on the next one. Stay tuned for the next pump announcement.
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