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
Trump on Saudi Crown Prince: "He’ll Have to Kiss My Ass"
Former US President Donald Trump sharply criticized Saudi Crown Prince Mohammed bin Salman, claiming he’s now dependent on Washington. Trump said the prince didn’t expect to have to change his tone and “kiss his ass” to maintain US relations.
“He didn’t think this would happen. Now he has to be nice to me,” Trump emphasized.
#Trump#SaudiArabia#MohammedBinSalman#InternationalRelations
The main news of Russia and the world ishere.
Lebanese daily @alakhbarnews reported that #SaudiArabia remains firm in its stance, maintaining economic pressure on #Lebanon.
According to visitors to #Riyadh, the kingdom has conveyed that it will not contribute "a single penny" to Lebanon’s reconstruction efforts.
Well-informed sources indicate that President #JosephAoun indirectly received this message during his meeting with Saudi Crown Prince #MohammedbinSalman earlier this month.
Additionally, he was reportedly met with a firm Saudi refusal to lift the travel ban on its citizens visiting Beirut.
During their discussions, bin Salman reportedly questioned Aoun on whether he could guarantee the safety of Saudi nationals traveling along Beirut’s airport road, which is lined with images of #Hezbollah and Iranian leaders. He remarked, “At the very least, remove the pictures.”
Upon his return, Aoun relayed this request to Speaker of Parliament #NabihBerri, inquiring about the possibility of reducing the number of such images along the route.
Why do you think Saudi Arabia cares about images displayed in another country? Share your thoughts with Hoopoe.