В федоре собирают с python3 https://src.fedoraproject.org/rpms/hplip/tree/master
hplip-1:3.19.10-alt1 -> sisyphus: Thu Oct 31 2019 Andrey Cherepanov <cas@altlinux> 1:3.19.10-alt1 - New version. - Added support for the following new Printers: + HP Color LaserJet MFP M776dn + HP Color LaserJet Flow MFP M776z + HP Color LaserJet Flow MFP M776zs + HP Color LaserJet M856dn + HP Color LaserJet M856x + HP Color LaserJet E85055dn - Build with Python3 (ALT #37289).