aiohttp request times out when using a proxy, but is fine when i run without a proxy - request

Question

I am attempting to scrape a site using a proxy in aiohttp with asyncio but whenever I run the code with a proxy it times out. I have removed the proxy from the code because it is a DC proxy. Does anyone know why my request would be timing out? It does work when I run without a proxy.
code:
import aiohttp
import asyncio
import random
async def fetch(session,):
UAList = ['Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/605.1.15 (KHTML, like Gecko) '
'Version/13.1.1 Safari/605.1.15',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/83.0.4103.97 '
'Safari/537.36',
'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0',
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/83.0.4103.97 Safari/537.36', ]
# chooses a random User Agent(From the list above) for the header
rUserAgent = random.choice(UAList)
rHeader = {
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,'
'application/signed-exchange;v=b3;q=0.9',
'accept-encoding': 'gzip, deflate, br',
'accept-language': 'en-US,en;q=0.9',
'cache-control': 'max-age=0',
'cookie': 'cookie',
'sec-fetch-dest': 'document',
'sec-fetch-mode': 'navigate',
'sec-fetch-site': 'same-origin',
'sec-fetch-user': '?1',
'upgrade-insecure-requests': '1',
'user-agent': rUserAgent
}
proxy = 'http://'
url = 'http://www.yeezysupply.com/product/GY7657'
async with session.get(url=url,allow_redirects=False,headers=rHeader,proxy=proxy) as resp:
assert resp.status == 200
return await resp.text()
async def main():
conn = aiohttp.TCPConnector()
async with aiohttp.ClientSession() as session:
html = await fetch(session)
print(html)
policy = asyncio.WindowsSelectorEventLoopPolicy()
asyncio.set_event_loop_policy(policy)
loop = asyncio.get_event_loop()
loop.run_until_complete(main())

Answer 1

As I cannot tell from the post, your proxy should have the following structure:
http://username:password#proxy_url:proxy_port or http://proxy_url:_proxy_port
Please try to redefine your main() like this:
async def main():
conn = aiohttp.TCPConnector()
async with aiohttp.ClientSession(connector=conn, timeout=aiohttp.ClientTimeout()) as session:
html = await fetch(session)
print(html)
During my tests, I found that the assert resp.status == 200 would fail, if the toGet-URL was set to http:// instead of https:// as using http:// would result in a redirect (status code 301) for me.