[Bug 1734661] Re: package python-requests 2.2.1-1ubuntu0.3 failed to install/upgrade: package is in a very bad inconsistent state; you should reinstall it before attempting configuration

[natraj]

I was installing coursera-dl (https://github.com/coursera-dl/coursera-
dl) and this had a specific crypto dependency and i starting installing
the same with pip. But the crypto dependency had python3 as a
requirement


Then i did the below 
1) Moved  /usr/bin/python to /usr/bin/python2 
2) Linked /usr/bin/python to /usr/bin/python3.7 
3) Executed the below commands

       coursera-dl virtualenv my-coursera
  180  virtualenv my-coursera
  181  sudo apt-get install python-virtualenv
  182  sudo apt-get install python3-virtualenv
  183  sudo apt-get install python-virtualenv
  184  coursera-dl 
  185  pip3 install cffi
  186  sudo pip3 install cffi
......


   Was able to use coursera-dl 

Then on the apt-get update started failing please i have attached the
complete command line history in the attachment "aptcommandhistory.txt"




** Attachment added: "apt command history"
   https://bugs.launchpad.net/ubuntu/+source/requests/+bug/1734661/+attachment/5015648/+files/aptcommandhistory.txt

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https://bugs.launchpad.net/bugs/1734661

Title:
  package python-requests 2.2.1-1ubuntu0.3 failed to install/upgrade:
  package is in a very bad inconsistent state; you should  reinstall it
  before attempting configuration

Status in requests package in Ubuntu:
  Incomplete

Bug description:
  Somethign is messed up after linking python to python 3 and after this
  all these issues started cropping up.

  ProblemType: Package
  DistroRelease: Ubuntu 14.04
  Package: python-requests 2.2.1-1ubuntu0.3
  ProcVersionSignature: Ubuntu 4.4.0-101.124~14.04.1-generic 4.4.95
  Uname: Linux 4.4.0-101-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.27
  Architecture: amd64
  Date: Mon Nov 27 16:18:42 2017
  DuplicateSignature: package:python-requests:2.2.1-1ubuntu0.3:package is in a very bad inconsistent state; you should  reinstall it before attempting configuration
  ErrorMessage: package is in a very bad inconsistent state; you should  reinstall it before attempting configuration
  InstallationDate: Installed on 2017-11-16 (10 days ago)
  InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.17.5ubuntu5.7
   apt  1.0.1ubuntu2.17
  SourcePackage: requests
  Title: package python-requests 2.2.1-1ubuntu0.3 failed to install/upgrade: package is in a very bad inconsistent state; you should  reinstall it before attempting configuration
  UpgradeStatus: Upgraded to trusty on 2017-11-27 (0 days ago)

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