Hi, pyclean script runs as python2 and probably when you installed python3 it was put as default for you system. Exceptions between 2 and 3 are not compatible so is the cause of the error message. Since it's not a security problem I'll make that public.
** Information type changed from Private Security to Public -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754311 Title: package python-twisted-core 16.0.0-1 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/twisted/+bug/1754311/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
