Отдельно разберём TaskGroup, который пришел на замену gather в Python 3.11.
Ключевые отличия
▫️create_task() возвращает объект asyncio.Task, у которого есть соответствюущие методы управления. То есть у нас больше контроля
▫️это контекстный менеджер, который гарантирует что все таски будут остановлены по выходу из контекста
▫️ошибка автоматически отменяет незавершенные задачи,
▫️except* передает нам ExceptionGroup, в котором каждую ошибку можно обработать отдельно
import asyncio
import random
async def do_it() -> str:
if random.random() < 0.1:
raise ValueError('Oops')
delay = random.uniform(0.5, 1.5)
await asyncio.sleep(delay)
return delay
async def main():
try:
async with asyncio.TaskGroup() as tg:
for _ in range(10):
tasks.append(tg.create_task(do_it()))
for t in tasks:
print(t.result())
except *ValueError as e:
for err in e.exceptions:
print(err)
asyncio.run(main())
Рекомендую изучить страницу Coroutines and Tasks из документации, где представлено больше интересных примеров и механизмов
- таймауты
- отмена задач
- создание задач из другого потока
#async
Bitcoin and Ethereum ETF Outflows Report
On February 21, Bitcoin spot ETFs saw a net outflow of $62.77M, while BlackRock's ETF IBIT experienced a net inflow of $21.64M. Additionally, Ethereum spot ETFs recorded a net outflow of $8.92M. Read more here.
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Bitcoin ETFs experience record outflows nearing $1 billion. In 2023, all crypto sectors underperform compared to Bitcoin, with AI frameworks down 84%, agent projects 70%, and more. SEC acknowledges NYSE Arca's filing for Grayscale Ethereum ETF staking. Meanwhile, Bybit hackers have laundered 45,900 ETH ($113M) in 24 hours, totaling 135,000 ETH ($335M) to date, with more expected to be laundered soon.
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Read more: Unfolded
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6️⃣ New AI-meme project MIND of Pepe raises $6.8 million, distinguishing itself with functional AI integration.
7️⃣ Ethereum Foundation pledges $1.25 million for legal defense of Tornado Cash developer.
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