I strongly think this was fixed long ago as we're at 0.22 and this was reported for 0.4. Please re-open if it still happens.
** Changed in: plainbox (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1289334 Title: package python3-plainbox 0.4-4 failed to install/upgrade: ErrorMessage: le sous-processus script post-installation installé a retourné une erreur de sortie d'état 3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plainbox/+bug/1289334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs