Question

我是asynchronus编程的新手。我正在编写用于检查网页状态的脚本。当然，我喜欢doint thath asynchronus。我的片段：

import aiohttp
import asyncio

url_site = 'http://anysite.com'
fuzz_file = 'fuzz.txt'


def generate_links(file):
    with open(file) as f:
        return [str(url_site) + str(line.strip()) for line in f]

async def fetch_page(client, url):
    async with client.get(url) as response:
        return response.status

async def run():
    links = generate_links(fuzz_file)
    for f,link in asyncio.as_completed([fetch_page(client,link) for link in links]):
        print("[INFO] [{}] {}".format(f, link))


loop = asyncio.get_event_loop()
conn = aiohttp.ProxyConnector(proxy="http://10.7.0.35:8080")
client = aiohttp.ClientSession(loop=loop, connector=conn)
loop.run_until_complete(run())
client.close()

但我收到了下一个错误：Task was destroyed but it is pending! 有人能指出我犯错的地方吗？

Answer 1

来自as_completed的文档：

返回一个迭代器，其等待的值为Future实例。

因此，您必须await as_completed返回的每个对象：

for f in asyncio.as_completed([fetch_page(client,link) for link in links]):
    status = await f

您可能还想查看wait以获得更精细的控制。

asyncio返回“任务已被破坏，但它正在等待！”

1 个答案: