[Bug 1671837] Re: package python3 3.5.1-3 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 127

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** Tags removed: need-duplicate-check

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https://bugs.launchpad.net/bugs/1671837

Title:
  package python3 3.5.1-3 failed to install/upgrade: subprocess
  installed pre-removal script returned error exit status 127

Status in python3-defaults package in Ubuntu:
  New

Bug description:
  I got this error by removing and installing python ! how can i fix it?

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: python3 3.5.1-3
  Uname: Linux 4.5.4-040504-generic x86_64
  NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.1-0ubuntu2.5
  Architecture: amd64
  Date: Thu Mar  9 20:56:19 2017
  DuplicateSignature:
   package:python3:3.5.1-3
   Removing python3 (3.5.1-3) ...
   /var/lib/dpkg/info/python3.prerm: 5: /var/lib/dpkg/info/python3.prerm: py3clean: not found
   dpkg: error processing package python3 (--purge):
    subprocess installed pre-removal script returned error exit status 127
  ErrorMessage: subprocess installed pre-removal script returned error exit status 127
  InstallationDate: Installed on 2016-05-08 (305 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.15ubuntu0.2
  SourcePackage: python3-defaults
  Title: package python3 3.5.1-3 failed to install/upgrade: subprocess installed pre-removal script returned error exit status 127
  UpgradeStatus: No upgrade log present (probably fresh install)

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