Why is proxy checking more stable over streams than async?

Question

Python

Testing lists of proxies. There are ~5 times more valid proxies found with the threading and requests modules than with asyncio and aiohttp. Why is this happening? The timeout is the same. Everywhere one session on 1 request is created. The same list. I check not at the same time by two methods.

aio http code: https://pastebin.com/dWwgtTW2
requests code: https://pastebin.com/Xs8QAGgL

Answer 1

Because in async you can't be sure which proxy the next request is going through. Yes, it supports proxies but for all Requests. As a result, you send 10 proxies for verification, and in fact only one is checked, which is why there is such a large percentage of failures. To check proxies, each request must be isolated.