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
Do not save your drugs for later or share them with another person.
Ensure you complete your dosage as prescribed by a certified healthcare worker.
Play your part to prevent #AntimicrobialResistance.
Dear Healthcare Workers,
Remember that many infections present with similar signs and symptoms. Always maintain a high index of suspicion.
To prevent #AntimicrobialResistance, conduct a test before you treat a patient.
Dear Healthcare Workers,
Remember that many infections present with similar signs and symptoms. Always maintain a high index of suspicion.
To prevent #AntimicrobialResistance, conduct a test before you treat a patient.
#AntimicrobialResistance is a global health issue leading to the ineffectiveness of drugs against the illness they were developed to treat.
Health care practitioners should always conduct a test before prescribing treatment for a patient
Do not save your drugs for later or share them with another person.
Ensure you complete your dosage as prescribed by a healthcare worker.
Play your part to prevent #AntimicrobialResistance.
Do not save your drugs for later or share them with another individual
Complete your dosage as prescribed by a healthcare worker.
Play your part to prevent #AntimicrobialResistance.
#Antimicrobials are not always needed when you are feeling unwell.
Antibiotics should only be prescribed by healthcare professionals after an appropriate diagnostic test.
Be an #AntimicrobialResistance guardian.
#Antimicrobials are not always needed when you are feeling unwell.
Antibiotics should only be prescribed by healthcare professionals after an appropriate diagnostic test.
Be an #AntimicrobialResistance guardian
#Antimicrobials are not always needed when you are feeling unwell.
Antibiotics should only be prescribed by healthcare professionals after an appropriate diagnostic test.
Be an #AntimicrobialResistance guardian
#Antimicrobials are not always needed when you are feeling unwell.
Antibiotics should only be prescribed by healthcare professionals after an appropriate diagnostic test.
Be an #AntimicrobialResistance guardian
The misuse and overuse of #antibiotics💊 & other antimicrobials reduces their effectiveness in treating common infections in animals & humans.
Everyone has a role to play to help fight #AntimicrobialResistance, do your part!
Misuse or overuse of #antibiotics💊 & other antimicrobials can reduce their effectiveness in treating common infections in animals & humans.
Everyone has a role to play to help fight #AntimicrobialResistance, do your part!