[Bug 1792738] Re: package python3 3.6.3-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4

[Benjamin Drung]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The relevant dpkg terminal log says:

running python rtupdate hooks for python3.6...
[Errno 2] No such file or directory: '/usr/lib/x86_64-linux-gnu/gedit/plugins/externaltools/__init__.py'
[Errno 2] No such file or directory: '/usr/lib/x86_64-linux-gnu/gedit/plugins/externaltools/library.py'
[Errno 2] No such file or directory: '/usr/lib/x86_64-linux-gnu/gedit/plugins/externaltools/linkparsing.py'
[Errno 2] No such file or directory: '/usr/lib/x86_64-linux-gnu/gedit/plugins/externaltools/manager.py'
[Errno 2] No such file or directory: '/usr/lib/x86_64-linux-gnu/gedit/plugins/externaltools/outputpanel.py'
error running python rtupdate hook gedit

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https://bugs.launchpad.net/bugs/1792738

Title:
  package python3 3.6.3-0ubuntu3 failed to install/upgrade: subprocess
  installed post-installation script returned error exit status 4

Status in python3-defaults package in Ubuntu:
  Confirmed

Bug description:
  system notify me about the error during OS update process.

  ProblemType: Package
  DistroRelease: Ubuntu 17.10
  Package: python3 3.6.3-0ubuntu3
  ProcVersionSignature: Ubuntu 4.13.0-46.51-generic 4.13.16
  Uname: Linux 4.13.0-46-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.7-0ubuntu3.9
  AptOrdering:
   google-chrome-stable:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  Date: Sat Sep 15 22:11:01 2018
  ErrorMessage: subprocess installed post-installation script returned error exit status 4
  InstallationDate: Installed on 2018-03-24 (175 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
  Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu3
  PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
  RelatedPackageVersions:
   dpkg 1.18.24ubuntu1
   apt  1.5.2
  SourcePackage: python3-defaults
  Title: package python3 3.6.3-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 4
  UpgradeStatus: No upgrade log present (probably fresh install)

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