Три способа выполнить множество задач с asyncio
Функция для примера:
async def do_it(n):
await asyncio.sleep(random.uniform(0.5, 1))
return n
1. Последовательный вызов
async def main():
for i in range(100):
result = await do_it(i)
Такой вызов имеет смысл только тогда, когда результат одной задачи требуется для вызова следующей.
Если они независимы, то это антипаттерн, так как аналогичен простому синхронному вызову по очереди.
2. Упорядоченный результат
async def main():
tasks = [do_it(i) for i in range(100)]
results = await asyncio.gather(*tasks)
Выполняет корутины конкурентно и возвращает результат в виде списка.
Полезен когда требуется получить результаты в том же порядке в котором задачи отправлены.
3. Результат по мере готовности
tasks = [asyncio.create_task(do_it(i)) for i in range(100)]
for cor in asyncio.as_completed(tasks):
result = await cor
Так же выполняет корутины конкурентно, но не гарантирует порядок. Результат возвращается по мере готовности, каждый отдельно.
Полезен когда нужно обработать любой ответ как можно скорее.
#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
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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.
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