/usr/lib/python3/dist-packages/breezy/git/__init__.py was getting installed as /usr/lib/python3/dist-packages/breezy/git/__init__.py.distrib and apt failing on postinst step
I fixed it locally by skipping postinstall (see https://askubuntu.com/questions/482928/ignore-apt-get-postinstall-scripts-automatically ) copying the file from the package cp usr/lib/python3/dist-packages/breezy/git/__init__.py /usr/lib/python3/dist-packages/breezy/git/__init__.py and running applicable postinstall step manually : py3compile -p python3-breezy:amd64 Turns out I had dpkg-divert that file, I removed the divert with dpkg-divert --no-rename --remove /usr/lib/python3/dist-packages/breezy/git/__init__.py and now apt install --reinstall python3-breezy works as expected ** Changed in: breezy (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1969852 Title: package python3-breezy 3.2.1+bzr7585-1build1 failed to install/upgrade: installed python3-breezy package post-installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/breezy/+bug/1969852/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs