[Bug 1978120] Re: package update-notifier-common 3.192.40.4 failed to install/upgrade: installed update-notifier-common package post-installation script subprocess returned error exit status 1

[Steve Langasek]

The error in your log is:

  File "/usr/lib/update-notifier/package-data-downloader", line 24, in <module>
    import debian.deb822
ModuleNotFoundError: No module named 'debian'

The update-notifier-common package depends on python3-debian.  The fact
that this is not found on your system means that you have broken your
system's python installation and /usr/bin/python3 is no longer able to
find the debian python module that's installed.

You will need to fix your python install to continue your upgrade.
'sudo apt install --reinstall python3.9-minimal python3' may help you
with this.

** Changed in: update-notifier (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1978120

Title:
  package update-notifier-common 3.192.40.4 failed to install/upgrade:
  installed update-notifier-common package post-installation script
  subprocess returned error exit status 1

Status in update-notifier package in Ubuntu:
  Invalid

Bug description:
  Can`t update my server side ubuntu

  ProblemType: Package
  DistroRelease: Ubuntu 21.04
  Package: update-notifier-common 3.192.40.4
  ProcVersionSignature: Ubuntu 5.11.0-49.55-generic 5.11.22
  Uname: Linux 5.11.0-49-generic x86_64
  ApportVersion: 2.20.11-0ubuntu65.4
  Architecture: amd64
  CasperMD5CheckResult: pass
  Date: Thu Jun  9 12:59:46 2022
  ErrorMessage: installed update-notifier-common package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2021-05-29 (375 days ago)
  InstallationMedia: Ubuntu-Server 21.04 "Hirsute Hippo" - Release amd64 (20210421)
  PackageArchitecture: all
  Python3Details: /usr/bin/python3.9, Python 3.9.5, python3-minimal, 3.9.4-1
  PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.18-9
  RebootRequiredPkgs: Error: path contained symlinks.
  RelatedPackageVersions:
   dpkg 1.20.9ubuntu1
   apt  2.2.4ubuntu0.1
  SourcePackage: update-notifier
  Title: package update-notifier-common 3.192.40.4 failed to install/upgrade: installed update-notifier-common package post-installation script subprocess returned error exit status 1
  UpgradeStatus: Upgraded to hirsute on 2022-06-09 (0 days ago)

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