Ubuntu
landscape-client package

python3-twisted breaks landscape-sysinfo

Bug #1962539 reported by Caiyun
48
This bug affects 7 people
Affects Status Importance Assigned to Milestone
Landscape Client
Fix Released
Critical
Simon Poirier
landscape-client (Ubuntu)
Fix Released
Critical
Simon Poirier

Bug Description

[What happened]

When login system from console, landscape-sysinfo error message pops up:

$ /usr/bin/landscape-sysinfo
Traceback (most recent call last):
  File "/usr/bin/landscape-sysinfo", line 22, in <module>
    run(sys.argv[1:], reactor)
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 115, in run
    for plugin in config.get_plugins():
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 69, in get_plugins
    return [namedClass("landscape.sysinfo.%s.%s"
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 69, in <listcomp>
    return [namedClass("landscape.sysinfo.%s.%s"
  File "/usr/lib/python3/dist-packages/twisted/python/reflect.py", line 169, in namedObject
    module = namedModule(".".join(classSplit[:-1]))
  File "/usr/lib/python3/dist-packages/twisted/python/reflect.py", line 156, in namedModule
    topLevel = __import__(name)
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/disk.py", line 7, in <module>
    from landscape.lib.disk import (get_mount_info, get_filesystem_for_path)
  File "/usr/lib/python3/dist-packages/landscape/lib/disk.py", line 7, in <module>
    from twisted.python.compat import _PY3
ImportError: cannot import name '_PY3' from 'twisted.python.compat' (unknown location)

[Release information]

$ lsb_release -rd
Description: Ubuntu Jammy Jellyfish (development branch)
Release: 22.04

[Package version]

$ apt-cache policy landscape-common python3-twisted
landscape-common:
  Installed: 19.12-0ubuntu10
  Candidate: 19.12-0ubuntu10
  Version table:
 *** 19.12-0ubuntu10 500
        500 http://nl.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
        100 /var/lib/dpkg/status
python3-twisted:
  Installed: 22.1.0-2ubuntu2
  Candidate: 22.1.0-2ubuntu2
  Version table:
 *** 22.1.0-2ubuntu2 500
        500 http://nl.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
        100 /var/lib/dpkg/status

[Other information]

Changelog mentioned removal of _PY3 constant
https://changelogs.ubuntu.com/changelogs/pool/main/t/twisted/twisted_22.1.0-2ubuntu2/changelog

Remove _PY3 from compat
https://github.com/twisted/twisted/commit/f40c6ace36cab4f291f400e583258f940be75b44

Related branches

~simpoir/ubuntu/+source/landscape-client:jammy-obsolete-py-compat
Andreas Hasenack: Approve
git-ubuntu import: Pending requested
Diff: 186 lines (+164/-0)
3 files modified
debian/changelog (+7/-0)
debian/patches/1962539_twisted_py3.patch (+156/-0)
debian/patches/series (+1/-0)
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in landscape-client (Ubuntu):
status: New → Confirmed
Simon Poirier (simpoir)
Changed in landscape-client (Ubuntu):
status: Confirmed → In Progress
assignee: nobody → Simon Poirier (simpoir)
Simon Poirier (simpoir)
Changed in landscape-client (Ubuntu):
importance: Undecided → Critical
Simon Poirier (simpoir)
Changed in landscape-client:
status: New → In Progress
importance: Undecided → Critical
assignee: nobody → Simon Poirier (simpoir)
Simon Poirier (simpoir)
Changed in landscape-client:
status: In Progress → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package landscape-client - 19.12-0ubuntu11

---------------
landscape-client (19.12-0ubuntu11) jammy; urgency=medium

  * debian/patches/1962539_twisted_py3.patch:
    Fix obsolete imports on jammy. (LP: #1962539)

 -- Simon Poirier <email address hidden> Wed, 02 Mar 2022 18:29:37 -0500

Changed in landscape-client (Ubuntu):
status: In Progress → Fix Released
Revision history for this message
Richard Leckinger (caraka) wrote :

Fix received with gratitude and it works as expected. Thank you!

Simon Poirier (simpoir)
Changed in landscape-client:
status: Fix Committed → Fix Released
Revision history for this message
DSHR (s-heuer) wrote :

I'm still observing the problem on Ubunu 20.04:

$ /etc/update-motd.d/50-landscape-sysinfo

  System information as of Do 2. Feb 14:45:01 CET 2023

Traceback (most recent call last):
  File "/usr/bin/landscape-sysinfo", line 22, in <module>
    run(sys.argv[1:], reactor)
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 115, in run
    for plugin in config.get_plugins():
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 69, in get_plugins
    return [namedClass("landscape.sysinfo.%s.%s"
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/deployment.py", line 69, in <listcomp>
    return [namedClass("landscape.sysinfo.%s.%s"
  File "/home/m500286/.local/lib/python3.8/site-packages/twisted/python/reflect.py", line 169, in namedObject
    module = namedModule(".".join(classSplit[:-1]))
  File "/home/m500286/.local/lib/python3.8/site-packages/twisted/python/reflect.py", line 156, in namedModule
    topLevel = __import__(name)
  File "/usr/lib/python3/dist-packages/landscape/sysinfo/disk.py", line 7, in <module>
    from landscape.lib.disk import (get_mount_info, get_filesystem_for_path)
  File "/usr/lib/python3/dist-packages/landscape/lib/disk.py", line 7, in <module>
    from twisted.python.compat import _PY3
ImportError: cannot import name '_PY3' from 'twisted.python.compat' (unknown location)

Has the fix been backported to 20.04?

Revision history for this message
DSHR (s-heuer) wrote :

Sorry for the inconvience - I see, that I had a private version of twisted in my home. After removing that all works well!

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