What specific modifications are needed in the Requests and urllib3 libraries to disable URL encoding?

You need to modify two files. First, in `/usr/lib/python3/dist-packages/requests/models.py`, comment out line 443: `url = requote_uri(urlunparse(...))`. Second, in `/usr/lib/python3/dist-packages/urllib3/connectionpool.py`, remove or comment out lines 649–652 that call `_encode_target()` and `parsed_url.url`. These changes prevent the library from re‑encoding the URL before sending the request.