[Discuss] How to permanently remove Linux package from installation

[edwardp at linuxmail.org (edwardp at linuxmail.org)]

Under Fedora, I previously tried out the LXDE desktop, then
subsequently removed it. One of the packages it used, openbox, remained
on the system and repeated attempts to remove this package, have not
resulted in its permanent removal. I should note that openbox was never
built for Fedora 25 and dnf installs the Fedora 24 package.

I located a couple of other LXDE-related packages that had remained on
the system, once removed along with openbox, the package was not
installed again through subsequent system updates. However today,
openbox again became listed and dnf installed it again.

Is there a Linux command of some sort that will display the
dependencies of a particular package? I would like to find out exactly
what openbox requires and if no other installed package(s) requires the
same, the intent is to remove them along with openbox.

Thank you.