Why don't proxies work in python requests? Or work?

Question

Python

s = requests.Session()
s.headers['Accept']= 'application/json'
proxies = {
'http':' http://login:[email protected]:port/ ',
}
res = s.get( ' https://ya.ru ', proxies=proxies)
print(res)

I tried without a proxy, with valid proxies, and deliberately made a mistake in the host and pass proxies.
Always the same result code 200.
Do they even work? Or how to prescribe in the code so that they work?

Answer 1

What protocol is the proxy for, and what is the request for?