Функция asyncio.wait() это еще один способ вызвать множество асинхронных задач.
Она работает в нескольких режимах.
1. Самый простой - ждем завершения всех задач
async def main():
tasks = [asyncio.create_task(do_it(i)) for i in range(10)]
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.ALL_COMPLETED
)
for task in done:
try:
print(task.result())
except Exception as e:
print(e)
Очень похоже на gather, но работает не так.
▫️возвращает не результаты, а два сета с объектами Task у которых можно забрать результат через task.result() если они в списке done
▫️не гарантирует порядок результатов так как оба объекта это set
▫️не выбрасывает исключение когда оно появляется, а сохраняет его в Task. Исключение появится когда попробуете забрать резултьтат.
2. Ждем завершения первой задачи, даже если там ошибка.
async def main():
tasks = [asyncio.create_task(do_it(i)) for i in range(3)]
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.FIRST_COMPLETED
)
# в done может быть несколько задач!
for task in done:
try:
print(task.result())
except Exception as e:
print(f"Fail: {e}")
# Оставшиеся задачи в pending, как правило, нужно отменить, иначе они будут продолжать работать
for task in pending:
task.cancel()
В сете done будут таски которые успели завершится, причем как успешно так и нет.
3. До первой ошибки.
Тоже самое, но с аргументом FIRST_EXCEPTION
done, pending = await asyncio.wait(
tasks,
return_when=asyncio.FIRST_EXCEPTION
)
Функция завершается как только первая задача упадет с ошибкой.
Учтите, что в любом случае done вы можете обранужить несколько задач, как с ошибками так и успешные.
↗️ Полный листинг примеров здесь
#async
📰 Another Gun, Another Perimeter: Mar-a-Lago Turns Into a Crime Scene Again
An armed man in his early 20s was shot dead at Mar-a-Lago after breaching the secure perimeter with a shotgun and a fuel can, according to the Secret Service and Palm Beach County sheriff. He drove in through the north gate around 1:30 a.m., slipped in as another vehicle exited, dropped the gas can when ordered — then reportedly raised the shotgun into a firing position, at which point two Secret Service agents and a county deputy opened fire and killed him. Trump was in Washington, not at the resort.
Investigators say the man, believed to be a 21‑year‑old from North Carolina who’d been reported missing by his family days earlier, had apparently traveled south and picked up the weapon on the way; a box for the shotgun was found in his car. The FBI is now canvassing neighbors for security‑camera footage while Palm Beach does its usual split-screen routine: winter tourists with iced coffees on one side, police blocking access roads to the ex‑president’s club on the other.
This is not an isolated incident; it’s the third serious case in 18 months. In July 2024, Thomas Crooks climbed onto a rooftop near a Trump rally in Butler, Pennsylvania, fired eight shots, killed a rallygoer, wounded two others and grazed Trump’s ear before being killed by a Secret Service sniper — after agents had been warned about him as “suspicious” an hour earlier. Two months later, Ryan Routh was caught with a rifle outside Trump’s Florida golf course and is now serving life for attempted assassination.
The Secret Service, already under fire for those failures, now has to argue two things at once: that Trump is protected, and that the system isn’t out of control. On paper, yesterday was a “success” — perimeter breached, threat neutralized, no protectee on site. In any sane democracy, the phrase “another young man with a long gun and a political fixation got within shooting range of the president’s property” would not count as reassurance.
America’s political class will now do what it always does. One camp will turn this into proof Trump is under siege and the state is failing him. The other will quietly enjoy the spectacle of a security apparatus that can’t secure a golf resort. No one will ask why U.S. politics keeps producing lone wolves with rifles, GPS coordinates for Trump’s locations, and just enough competence to reach the outer edge of the Secret Service’s comfort zone.
#Trump#MarALago#SecretService#violence#USA#fakeDemocracy
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