[Bug 1547370] Re: package update-notifier-common 3.163.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

The error in your log is:

Setting up update-notifier-common (3.163.1) ...
Traceback (most recent call last):
  File "/usr/lib/update-notifier/package-data-downloader", line 24, in <module>
    import debian.deb822
  File "/usr/lib/python3/dist-packages/debian/deb822.py", line 47, in <module>
    import six
ImportError: No module named 'six'

We have seen this problem reported several times, but I have no idea
what is causing it.  update-notifier-common depends on python3-debian,
which depends on python3-six.  Do you have some idea why the python3-six
package is broken on your system?

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

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https://bugs.launchpad.net/bugs/1547370

Title:
  package update-notifier-common 3.163.1 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in update-notifier package in Ubuntu:
  Incomplete

Bug description:
  Trying to update 15.10

  ProblemType: Package
  DistroRelease: Ubuntu 15.10
  Package: update-notifier-common 3.163.1
  ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
  Uname: Linux 4.2.0-27-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Fri Feb 19 10:48:37 2016
  DuplicateSignature: package:update-notifier-common:3.163.1:subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2015-11-04 (106 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.2ubuntu5.1
   apt  1.0.10.2ubuntu1
  SourcePackage: update-notifier
  Title: package update-notifier-common 3.163.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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