A function to patch the urllib3 / requests to print and/or change the hosts as needed.

patch_connection.py

from urllib3.util import connection


def patch_requests_connector():
    _create_connection = connection.create_connection


    def patched_create_connection(address, *args, **kwargs):
        """
        Patches the create_connection in order to print the hosts.
        
        This is useful in cases of the requests being redirected to
        unavailable hostnames, with this you can check which host:port
        is being used in every request made.
        
        If needed this patch can be modified to resolve the names into
        different routes.
        """
        host, port = address
        print(address, host, port)

        return _create_connection((host, port), *args, **kwargs)


    connection.create_connection = patched_create_connection