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
Russian Defence Ministry (@mod_russia_en):
❗️Statement by Russian Defence Ministry
▪️ On March 14, at about 11.30 a.m. Moscow time, Tochka-U tactical missile was fired at a residential block of Donetsk city from the territory controlled by the Kiev nationalist regime.
▪️ The shelling of the city was carried out from the north-western direction, from the area of Krasnoarmeysk settlement, which is controlled by Ukrainian nationalist units.
▪️ As a result of the explosion of a cluster warhead in the center of Donetsk, 20 civilians were killed. Another 28 people, including children, were seriously injured and taken to medical institutions.
▪️ The use of such weapons on a town with no armed forces firing positions, i.e. deliberately targeting civilians, is a war crime.
#Ukraine#Donetsk#WarCrime
How a Secluded 1984 Conference Forged Israel’s Unprecedented Influence Over US Media
October 31st, 2024
By Kit Klarenberg
.
In the first week of January 2024, Israeli forces fired 355 bullets at a car containing a five-year-old, then shot at rescue workers who rushed to save her life.
An indisputible act of murder, a definite #WarCrime – yet, per many Western media headlines, she was simply a “girl killed in Gaza.”
The circumstances and perpetrators of her death, if mentioned at all, were invariably buried at the bottom of reports, well hidden from the 80% of the news-consuming public who only read headlines.
In contrast, on October 15 2024, Sky News was very keen that its viewers know the names and faces of four “teenage” #IDF soldiers “killed” in a “#Hezbollah#drone attack,” humanizing and infantilizing individuals who, by mere token of their service in Israel’s military, are by definition, guilty of genocide. ..... (read more....)
🇺🇸#USA
#US#Senator#LindseyGraham voices his fear that, due to the International Criminal Court's (#ICC) #WarCrime Charges against Israeli PM #Netanyahu, there might after all even be some adverse #legal consequences for both his own, and his country's, illegal War actions.
"If they'll do this to Israel, we're next."