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
#G20#India
Narendra #Modi (#BJP|Destra): "Ho ricevuto una buona notizia. Grazie al duro lavoro della nostra squadra, è stato costruito un consenso sulla Dichiarazione dei leader del vertice G20 di Nuova Delhi. Mi congratulo con i miei sherpa e con i ministri che hanno lavorato sodo per rendere questo risultato possibile. La presidenza indiana del G20 è la più ambiziosa della storia. Con 112 tra documenti finali e documenti della presidenza, abbiamo più che raddoppiato il corposo lavoro delle precedenti presidenza."
@OsservatorioEsteri
#G20#India
Narendra #Modi (#BJP|Destra): "Ho inviato al Presidente di turno dell'Unione africana Azali #Assoumani (🇰🇲#CRC|Centro-sinistra🇰🇲) un documento in cui si invita formalmente l'Unione come membro permanente del G20. Il documento esprime la ferma convinzione che la sua inclusione contribuirà significativamente a far fronte alla sfide globali dei nostri tempi."
@OsservatorioEsteri
The former minister of Delhi, #SandeepKumar, was today inducted into the #BJP by #Haryana CM Nayab Saini.
#Sandeep went to jail for rape in exchange for providing jobs and was dismissed from his ministerial position due to this case.
On social #media, when his (dirty secrets) were exposed, the BJP found itself on the back foot. Sandeep was expelled from the party. And now, this rapist has been re-admitted into the BJP.
Now, if someone calls this a rapist, all Indians, especially Hindu extremists, get upset. My brother, the truth is that these people can do anything for power.Tomorrow, someone in your family, a girl, could be raped in exchange for a job, and you might not be able to do anything. When you protest, you will be labeled a traitor and arrested.
The #BJP is a party of #rapists.
#bhagwaterrorist