在python中使用aiohttp获取多个url-Java 学习之路

在之前的question中，用户建议使用 aiohttp 获取多个URL（API调用）的以下方法：

import asyncio
import aiohttp


url_list = ['https://api.pushshift.io/reddit/search/comment/?q=Nestle&size=30&after=1530396000&before=1530436000', 'https://api.pushshift.io/reddit/search/comment/?q=Nestle&size=30&after=1530436000&before=1530476000']

async def fetch(session, url):
    async with session.get(url) as response:
        return await response.json()['data']


async def fetch_all(session, urls, loop):
    results = await asyncio.gather(*[loop.create_task(fetch(session, url)) for url in urls], return_exceptions= True)
    return results

if __name__=='__main__':
    loop = asyncio.get_event_loop()
    urls = url_list
    with aiohttp.ClientSession(loop=loop) as session:
        htmls = loop.run_until_complete(fetch_all(session, urls, loop))
    print(htmls)

但是，这会导致仅返回属性错误：

[AttributeError('__aexit__',), AttributeError('__aexit__',)]

（我启用了，其他它只会破坏） . 我真的希望这里有人，可以帮助解决这个问题，但仍然很难找到 asyncio 等资源 . 返回的数据是json格式 . 最后，我想把所有json dicts放在一个列表中 .

1 回答

工作范例：

import asyncio
import aiohttp
import ssl

url_list = ['https://api.pushshift.io/reddit/search/comment/?q=Nestle&size=30&after=1530396000&before=1530436000',
            'https://api.pushshift.io/reddit/search/comment/?q=Nestle&size=30&after=1530436000&before=1530476000']


async def fetch(session, url):
    async with session.get(url, ssl=ssl.SSLContext()) as response:
        return await response.json()


async def fetch_all(urls, loop):
    async with aiohttp.ClientSession(loop=loop) as session:
        results = await asyncio.gather(*[fetch(session, url) for url in urls], return_exceptions=True)
        return results


if __name__ == '__main__':
    loop = asyncio.get_event_loop()
    urls = url_list
    htmls = loop.run_until_complete(fetch_all(urls, loop))
    print(htmls)

回复于 2024-05-01T06:19:57+08:00

在python中使用aiohttp获取多个url

1 回答

相关问题