I'm guessing that somewhere along the way of trying to get it to work my python was upgraded. The documentation on the HP Linux Imaging and Printing website is not good and it didn't help that CentOS was not listed as a distro in the drop down on the download page. I figured the Red Hat Enterprise Linux .rpm would work with CentOS but it didn't. Then when I tried the link for "Others" the installer came up with a bunch of missing dependencies that it could not automatically install. I don't remember having such a hard time setting up a printer in CentOS 7
