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
🇿🇦The Office of the Honorary Consul of the Republic of South Africa in Yekaterinburg extends its warmest congratulations to President Cyril Ramaphosa on his birthday! 🎉
We wish the South African leader good health, prosperity, and continued success in strengthening Russian–South African relations! 🇷🇺🤝🇿🇦
#SouthAfrica#Birthday#Diplomacy#Cooperation#Russia#CyrilRamaphosa
🇷🇺🤝🇿🇦 Ambassador-designate of Russia to South Africa Roman Ambarov took part in the event to commemorate the Day of Reconciliation in Vredendal, Western Cape.
The celebration was arranged by the Department of Sports, Arts and Culture of South Africa with Minister Gayton McKenzie acting as the program moderator.
🎙 President Cyril Ramaphosa delivered the keynote address pointing out that this Day of Reconciliation’s theme is “Healing historical wounds and forging new futures.” It is an occasion where South Africans remember and celebrate their journey as a country towards nation-building, healing, social justice and forgiveness, he emphasized.
We are all bound together by the spirit of Ubuntu. The word “Ubuntu” has its roots in the IsiZulu phrase “umuntu ngumuntu ngabantu” – “A person is a person through other people,” “I am because we are” - Cyril Ramaphosa noted.
“This day is of great historical significance. It is a reminder that the country went through centuries of divisions and conflicts. But instead of hatred and revenge, South Africans chose reconciliation and nation-building, as Nelson Mandela, the first democratically elected President of South Africa once said.
On this day, #Russia sincerely wishes the friendly South African people peace, harmony and unity!” Ambassador-designate Roman Ambarov said on the sidelines of the event.
#ReconciliationDay2024#UniteAgainstAllIntolerances#Ambarov#EmbassyofRussia#SouthAfrica#CyrilRamaphosa#GaytonMcKenzie