Weird behaviour with https and proxy authentication

[pelfex]

requests.get is getting weird with some combinations of dictionary keys and proxy authentication.

Expected Result

print(requests.get('https://google.com', proxies={"https" : 'https://user:pass@ip:port'}))

Output:
<Response [200]>

Actual Result

Doesn't run? (Maybe timeout)
But it somehow fixes itself with these changes

print(requests.get('https://google.com', proxies={"http" : 'http://user:pass@ip:port'}))

Output:
<Response [200]>

Reproduction Steps

import requests

print(requests.get('https://google.com', proxies={"https" : 'https://user:pass@ip:port'}))

print(requests.get('https://google.com', proxies={"http" : 'http://user:pass@ip:port'}))

System Information

$ python -m requests.help

{
  "chardet": {
    "version": null
  },
  "charset_normalizer": {
    "version": "2.0.12"
  },
  "cryptography": {
    "version": ""
  },
  "idna": {
    "version": "3.4"
  },
  "implementation": {
    "name": "CPython",
    "version": "3.10.11"
  },
  "platform": {
    "release": "10",
    "system": "Windows"
  },
  "pyOpenSSL": {
    "openssl_version": "",
    "version": null
  },
  "requests": {
    "version": "2.27.1"
  },
  "system_ssl": {
    "version": "1010114f"
  },
  "urllib3": {
    "version": "1.26.9"
  },
  "using_charset_normalizer": true,
  "using_pyopenssl": false
}

$ python --version
Python 3.10.11

[pelfex]

proxies im using are https capable

[pelfex]

misclick

[visions4k]

its most likely that your proxies only support http protocol, it should work the way you have it, so its probably proxy issues.

[pelfex]

proxies im using are https capable

its most likely that your proxies only support http protocol, it should work the way you have it, so its probably proxy issues.