Continuing previous comment.
(Something specific for rhel).
For Python, I removed /usr/bin/python and changed "#!/usr/bin/python" inside /usr/bin/hp-scan to "#!/usr/libexec/platform-python" (then it still works). And both similar change inside /usr/bin/hp-setup, /usr/bin/hp-plugin, /usr/bin/hp-sendfax, /usr/bin/hp-systray too.
The reason is https://developers.redhat.com/blog/2019/05/07/what-no-python-in-red-hat-enterprise-linux-8/
Also looks like 3.20.9 (or similar) is going to be the default in next releases for diff Linux distros and then this problem of 3.18.4 should go away.
Continuing previous comment. libexec/ platform- python" (then it still works). And both similar change inside /usr/bin/hp-setup, /usr/bin/hp-plugin, /usr/bin/ hp-sendfax, /usr/bin/hp-systray too. /developers. redhat. com/blog/ 2019/05/ 07/what- no-python- in-red- hat-enterprise- linux-8/
(Something specific for rhel).
For Python, I removed /usr/bin/python and changed "#!/usr/bin/python" inside /usr/bin/hp-scan to "#!/usr/
The reason is https:/
Also looks like 3.20.9 (or similar) is going to be the default in next releases for diff Linux distros and then this problem of 3.18.4 should go away.