[Bug 1541800] Re: package libgksu2-0 2.0.13~pre1-6ubuntu7 failed to install/upgrade: subprocess installed post-removal script returned error exit status 127

[Jonners59]

Thank you.  In the end I rebuilt the machine, still struggling to set
up.  I was having all sorts of probs.....

The Python problem seems to be quite common.  I had loads of errors when
installing new apps or updating, and in the end it stopped doing so, so
I had to do something.  That is the problem with forum based
collaboration and searching on Google, it's so easy to get it all wrong!

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Title:
  package libgksu2-0 2.0.13~pre1-6ubuntu7 failed to install/upgrade:
  subprocess installed post-removal script returned error exit status
  127

Status in libgksu package in Ubuntu:
  Invalid

Bug description:
  Was having problems with updates, upgrades and ap installs.  Tried the
  usual sudo apt-get autoremove, upgrade, update, clean etc, but never
  worked.  Always said issues were with Phython3.   So Google searches
  showed lots of similar problems, often resolved by revertibng to
  Python2.7...  but I was running 2.7, so I used synaptic to remove
  python3, then tried to clear broken packages which meant reinstalling
  lots of python3...

  problem still not gone away, and now this warning.

  ProblemType: Package
  DistroRelease: Ubuntu 15.10
  Package: libgksu2-0 2.0.13~pre1-6ubuntu7
  ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
  Uname: Linux 4.2.0-18-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  Date: Thu Feb  4 10:22:35 2016
  DuplicateSignature: package:libgksu2-0:2.0.13~pre1-6ubuntu7:subprocess installed post-removal script returned error exit status 127
  ErrorMessage: subprocess installed post-removal script returned error exit status 127
  RelatedPackageVersions:
   dpkg 1.18.2ubuntu5.1
   apt  1.0.10.2ubuntu1
  SourcePackage: libgksu
  Title: package libgksu2-0 2.0.13~pre1-6ubuntu7 failed to install/upgrade: subprocess installed post-removal script returned error exit status 127
  UpgradeStatus: No upgrade log present (probably fresh install)

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