**Ticket moved to GitHub**: "pulp/pulp_deb/398":https://github.com/pulp/pulp_deb/issues/398 ---- A katello user here: https://projects.theforeman.org/issues/31701 reported this. When syncing a deb repo (unsure which one), it errors with: /usr/lib/python3.6/site-packages/debian/deb822.py:727 UserWarning: Parsing of Deb822 data with python3-apt's apt_pkg was requested but this package is not importable. Is python3-apt installed? Looking at the code, the default value for use_apt_pkg is True: https://salsa.debian.org/python-debian-team/python-debian/-/blob/master/lib/debian/deb822.py#L2331 and pulp isn't overriding it: https://github.com/pulp/pulp_deb/blob/ff7bf434b0c3aabdf165f2f9793f4acce668c724/pulp_deb/app/tasks/synchronizing.py#L546 so its defaulting to True. A full traceback isn't available, nor what repository they were syncing, but we could ask for that info if needed.