What were you trying to do that didn't work?

The issue is reported upstream in https://github.com/urllib3/urllib3/issues/2534

Please provide the package NVR for which bug is seen:

python3-urllib3-1.26.5-5.el9.noarch

How reproducible:

Allways which PoolManager is used with server_hostname

Steps to reproduce

Reproducer used in the reported upstream issue:

>>> import urllib3

>>> manager = urllib3.PoolManager(server_hostname='foo')

>>> manager.urlopen('GET', 'http://127.0.0.1')

Reports TypeError

TypeError: {}init{}() got an unexpected keyword argument 'server_hostname'

I'd say we need https://github.com/urllib3/urllib3/commit/f1d40fd07f7b5d9cf846a18fb5a920b4be07dfc5 or rebase to 1.25.9

Note that OpenStack uses that via gabbi test runner.