Python 无aiohttp的异步循环

我在Exchange上找到了操作库，我需要使用async或其他类似async的方法。我的代码：

import ccxt

binance = ccxt.binance()
    for pair in binance.load_markets(): // example: pair = BTC/USDT or ETH/BTC ...
        print(binance.fetch_order_book(pair, 5))

我需要使这个功能真正的速度，因为它真的很慢。前面我使用了异步和aiohttp，如：

async def main():
    async with aiohttp.ClientSession() as session:
        await asyncio.wait([fetch(self, session, url) for url in urls])
    print('Done')

async def fetch(session: aiohttp.ClientSession, url: str):
    async with session.get(url) as content:
        content = await content.json()
        print(f"Requested: {url}")

def run():
    loop = asyncio.get_event_loop()
    try:
        loop.run_until_complete(main())
        loop.run_until_complete(asyncio.sleep(2.0))
    finally:
        loop.close()

我需要类似的东西。问候。

我谨此致辞：

import asyncio
import ccxt

tab_symbols = []

async def fetch(pair, client):
   async with client.binance().fetch_order_book(pair, 5) as response:
        return await print(response)

async def run(tab):
    tasks = []

    async with ccxt.binance() as client:
        for x in tab:
            task = asyncio.ensure_future(fetch(x, client))
            tasks.append(task)

       responses = await asyncio.gather(*tasks)
       print(responses)

if __name__ == '__main__':
    binance = ccxt.binance()

    for x in binance.load_markets():
        tab_symbols.append(x)
        print(x)
    loop = asyncio.get_event_loop()
    future = asyncio.ensure_future(run(tab_symbols))
    loop.run_until_complete(future)

但我有一个例外：

async with ccxt.binance() as client:
AttributeError: __aexit__

---

怎么了？

如果请求速度慢，您可以使用ThreadPoolExecutor并行执行多个请求，但该库似乎已经支持asyncio：Ok。但是如何使用请求创建多个选项卡呢？有很多资源可用于使用ThreadPoolExecutor，如和异步请求，如。你需要表明你已经尽力尝试了，如果你在过程中遇到问题，发布你的代码，人们会帮助你；阅读我在上面评论中链接的例子；更具体地说，使用

import ccxt.async\u支持作为ccxt