[Bug 1676852] Re: package update-notifier-common 3.168.4 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Brian Murray]

Based off the DpkgHistoryLog.txt things started to go wrong about here:

Start-Date: 2017-03-10  16:03:09
Commandline: apt install python3.6
Requested-By: laurie (1000)
Install: libpython3.6-minimal:amd64 (3.6.0-2~16.04.york0, automatic), libpython3.6-stdlib:amd64 (3.6.0-2~16.04.york0, automatic), python3.6:amd64 (3.6.0-2~16.04.york0), python3.6-minimal:amd64 (3.6.0-2~16.04.york0, automatic)
Error: Sub-process /usr/bin/dpkg returned an error code (1)
End-Date: 2017-03-10  16:03:48

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https://bugs.launchpad.net/bugs/1676852

Title:
  package update-notifier-common 3.168.4 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in update-notifier package in Ubuntu:
  Incomplete

Bug description:
  I've been getting this error since installing Python 3.6, and when
  flashinstaller tries to update. It keeps complaining of a missing
  module called 'debian.deb822'


  Where do I get this mythical module, and where should it be installed,
  so I can get my system back to normal?

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: update-notifier-common 3.168.4
  ProcVersionSignature: Ubuntu 4.4.0-70.91-generic 4.4.49
  Uname: Linux 4.4.0-70-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  Date: Tue Mar 28 07:45:00 2017
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2015-08-11 (595 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.20
  SourcePackage: update-notifier
  Title: package update-notifier-common 3.168.4 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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