Hi, I confirm that the s/isAlive/is_alive/ issue was in httpretty, though after fixing that one, cloud-init still suffered from broken tests under Python 3.9 with OpenNebula. I've blacklisted the tests for that data source, because I don't think anyone cares much about OpenNebula in 2020. If I'm wrong with this thinking, let me know. Cheers, Thomas Goirand (zigo)