Hi, I'm really unsure how to fix this bug. The problem is, when Horizon updates, it switches from Py2 to Py3. Looks like Horizon updates first, which removes it. Then python-ironic-ui gets removed (which is normal), but then it's postinst attempts to call /usr/share/openstack-dashboard/manage.py from postrm (which belongs to Horizon), but it's not there anymore.
So, the only way I see to fix it, would be to fix the package in Stable, so that it would first check if manage.py is there, or even do nothing at all in the postrm (I'd lean toward the 2nd solution). This means, it needs a stable update to be able to upgrade to Buster, which is kind of not best, but fine (the recommendation says we must upgrade to the latest point release before upgrade...). Your thoughts? Is there a better way to fix it? Cheers, Thomas Goirand (zigo)
