[Bug 1750586] Re: package python-minimal 2.7.12-1~16.04 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

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** Tags removed: need-duplicate-check

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Title:
  package python-minimal 2.7.12-1~16.04 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1

Status in python-defaults package in Ubuntu:
  New

Bug description:
  There seems to be a dependency snarl:

  python-minimal is already the newest version (2.7.12-1~16.04).
  python-minimal set to manually installed.
  You might want to run 'apt-get -f install' to correct these:
  The following packages have unmet dependencies:
   python : PreDepends: python-minimal (= 2.7.11-1) but 2.7.12-1~16.04 is to be installed
   python-all : Depends: python (= 2.7.12-1~16.04) but 2.7.11-1 is to be installed
   python-all-dev : Depends: python (= 2.7.12-1~16.04) but 2.7.11-1 is to be installed
                    Depends: libpython-all-dev (= 2.7.12-1~16.04) but 2.7.11-1 is to be installed
   python-dev : Depends: python (= 2.7.12-1~16.04) but 2.7.11-1 is to be installed
                Depends: libpython-dev (= 2.7.12-1~16.04) but 2.7.11-1 is to be installed
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

  apt-get -f install tries to set up python-minimal (2.7.12-1~16.04) and
  returns 1.

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: python-minimal 2.7.12-1~16.04
  ProcVersionSignature: Ubuntu 4.4.0-109.132-generic 4.4.98
  Uname: Linux 4.4.0-109-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  Date: Tue Feb 20 08:48:01 2018
  DuplicateSignature:
   package:python-minimal:2.7.12-1~16.04
   Setting up python-minimal (2.7.12-1~16.04) ...
   dpkg: error processing package python-minimal (--configure):
    subprocess installed post-installation script returned error exit status 1
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  InstallationDate: Installed on 2016-10-23 (484 days ago)
  InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.3
   apt  1.2.25
  SourcePackage: python-defaults
  Title: package python-minimal 2.7.12-1~16.04 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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