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
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Gold is expected to experience a long-term rebound despite the current market disruptions caused by the Middle East conflict, according to financial institutions such as ANZ Banking Group and Goldman Sachs. Bloomberg posted on X, highlighting that these banks foresee a recovery in gold prices as geopolitical tensions continue to influence market dynamics. The ongoing conflict has introduced volatility, but experts believe that gold's status as a safe-haven asset will support its value in the long run. Investors are advised to consider the potential for gold's resurgence as part of their strategic planning.
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Citic Securities has released a report indicating that the global trend of central banks purchasing gold remains structurally resilient. According to Jin10, the market may be overestimating the driving forces and impact mechanisms behind this trend. The report outlines several key points:
1) The proportion of non-standard channels and domestic storage in gold purchases is rising, reflecting the strengthened attribute of gold as a 'sovereign safe asset.'
2) The current wave of gold buying goes beyond conventional reserve management and should not be directly equated with de-dollarization. The primary logic for central banks holding gold remains crisis hedging and reserve diversification.
3) Recent disturbances, such as temporary reductions by central banks in Turkey and Russia due to fiscal pressures, are tactical and do not alter the global net buying pattern.
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5) The gap in gold reserve proportions between emerging market central banks and developed countries is substantial, indicating that the current cycle of central bank gold purchases is far from over. Citic Securities is optimistic about medium to long-term allocation opportunities but advises monitoring signals of weakened correlation between gold and risk assets in the short term as a key entry point for buying on dips.
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