I preformed and upgrade of an Ubuntu Desktop system from xenial w/ -proposed enabled to bionic (after hacking DistUpgradeController.py not to disable -proposed) so that python3-minimal from bionic-proposed would be used and the upgrade proceeded without error.
bdmurray@clean-xenial-amd64:~$ grep -C10 python3-minimal /var/log/dist-upgrade/apt-term.log Selecting previously unselected package python3.6-minimal. Preparing to unpack .../python3.6-minimal_3.6.5-3_amd64.deb ... Unpacking python3.6-minimal (3.6.5-3) ... Processing triggers for libglib2.0-0:amd64 (2.48.2-0ubuntu1) ... Processing triggers for man-db (2.7.5-1) ... Setting up libssl1.1:amd64 (1.1.0g-2ubuntu4.1) ... locale: Cannot set LC_ALL to default locale: No such file or directory Setting up libpython3.6-minimal:amd64 (3.6.5-3) ... Setting up python3.6-minimal (3.6.5-3) ... (Reading database ... 246397 files and directories currently installed.) Preparing to unpack .../python3-minimal_3.6.5-3ubuntu1_amd64.deb ... Unpacking python3-minimal (3.6.5-3ubuntu1) over (3.5.1-3) ... Selecting previously unselected package libreadline7:amd64. Preparing to unpack .../libreadline7_7.0-3_amd64.deb ... Unpacking libreadline7:amd64 (7.0-3) ... Selecting previously unselected package libpython3.6-stdlib:amd64. Preparing to unpack .../libpython3.6-stdlib_3.6.5-3_amd64.deb ... Unpacking libpython3.6-stdlib:amd64 (3.6.5-3) ... Selecting previously unselected package python3.6. Preparing to unpack .../python3.6_3.6.5-3_amd64.deb ... Unpacking python3.6 (3.6.5-3) ... Preparing to unpack .../libpython3-stdlib_3.6.5-3ubuntu1_amd64.deb ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768379 Title: python3-minimal should predepend on versioned version of python3-minimal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1768379/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs