[Bug 1683187] Re: package python-apt 1.4.0~beta2 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1

[Julian Andres Klode]

I'm not sure what's going on here. But it seems to be a Python issue.
Did you perhaps mess up your system somehow and switched /usr/bin/python
to python 3, when pyclean expects python 2. That's what the error
messages indicate.

** Package changed: python-apt (Ubuntu) => python2.7 (Ubuntu)

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Title:
  package python-apt 1.4.0~beta2 failed to install/upgrade: subprocess
  new pre-removal script returned error exit status 1

Status in python2.7 package in Ubuntu:
  New

Bug description:
  Error dialog appeared some time after first login post upgrade from
  16.10 to 17.04.

  Trying to resolve issues with clamav-daemon systemd service and
  virtualbox at the time - not sure where this error triggered.

  Was having issues with python 3.6 beta - uninstalled due to 17.04
  upgrade failure.

  ProblemType: Package
  DistroRelease: Ubuntu 17.04
  Package: python-apt 1.4.0~beta2
  ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
  Uname: Linux 4.10.0-19-generic x86_64
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  Date: Sun Apr 16 18:46:13 2017
  ErrorMessage: subprocess new pre-removal script returned error exit status 1
  InstallationDate: Installed on 2016-05-03 (348 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  RelatedPackageVersions:
   dpkg 1.18.10ubuntu2
   apt  1.4
  SourcePackage: python-apt
  Title: package python-apt 1.4.0~beta2 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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