[Bug 1734485] Re: package update-notifier-common 3.179 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Steve Langasek]

This bug report shows the debconf python module is not on your python
path, despite being a dependency of the package.  Why is this module not
available?

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

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Title:
  package update-notifier-common 3.179 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in update-notifier package in Ubuntu:
  Incomplete

Bug description:
  may be due to Kali tools I installed earlier but later uninstalled.
  or may just be Ubuntu 17.04 AMD64 no longer being supported.

  update-notifier-common:
    Installed: 3.179
    Candidate: 3.179
    Version table:
   *** 3.179 500
          500 http://us.archive.ubuntu.com/ubuntu zesty/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu zesty/main i386 Packages
          100 /var/lib/dpkg/status

  ProblemType: Package
  DistroRelease: Ubuntu 17.04
  Package: update-notifier-common 3.179
  ProcVersionSignature: Ubuntu 4.10.0-40.44-generic 4.10.17
  Uname: Linux 4.10.0-40-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4.8
  AptOrdering:
   chromium-browser-l10n:amd64: Install
   chromium-browser:amd64: Install
   chromium-codecs-ffmpeg-extra:amd64: Install
   libraw16:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  Date: Sat Nov 25 07:02:27 2017
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2017-09-01 (85 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.10ubuntu2
   apt  1.4.6~17.04.1
  SourcePackage: update-notifier
  Title: package update-notifier-common 3.179 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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