Public bug reported: The updates relating to the email module remove functionality required by applications like unattended upgrades. It has been confirmed with focal and jammy.
I suppose it only affects the status report sent by email and hope unattended upgrades are still applied, but I didn't confirm this assumption. This has been reported to unattended-upgrades as well (https://bugs.launchpad.net/ubuntu/+source/unattended- upgrades/+bug/2080940), but I see more of an issue with python3.10, since I don't expect breaking changes in LTS. Sep 17 06:05:01 xxx systemd[1]: Starting Daily apt upgrade and clean activities... Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: Traceback (most recent call last): Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: File "/usr/bin/unattended-upgrade", line 2005, in main Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: send_summary_mail(res.pkgs, res.success, res.result_str, Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: File "/usr/bin/unattended-upgrade", line 1509, in send_summary_mail Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: ret = _send_mail_using_sendmail(from_email, to_email, subject, body) Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: File "/usr/bin/unattended-upgrade", line 1408, in _send_mail_using_sendmail Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: sendmail.stdin.write(msg.as_string()) Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: File "/usr/lib/python3.10/email/message.py", line 151, in as_string Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: from email.generator import Generator Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: File "/usr/lib/python3.10/email/generator.py", line 17, in <module> Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: from email.errors import HeaderWriteError Sep 17 06:05:24 xxx apt.systemd.daily[1894012]: ImportError: cannot import name 'HeaderWriteError' from 'email.errors' (/usr/lib/python3.10/email/errors.py) ** Affects: python3.10 (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2080942 Title: latest upgrade breaks unattended-upgrades To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3.10/+bug/2080942/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
