ImportError: No module named packaging.version

Question

When I tried installing Flask I got this error:

ImportError: No module named packaging.version

Underneath

Answer 1

To fix this, I had to do:

pip install setuptools

Underneath

Thanks man. That worked like a charm, after wasting about an hour Googling for the error. :) – Alcoran

Answer 2

If your Python runs on Ubuntu, try to do this:

cd /usr/local/lib/python2.7/dist-packages
mv pkg_resources/ pkg_resources_bak/

I'm not sure what package installed the "pkg_resources", it will make pip always show error.

Coupler

Answer 3

Try this

wget https://bootstrap.pypa.io/get-pip.py
sudo python get-pip.py

Cercus

I was having the above-mentioned error on my raspberry pi model B. If anyone else comes here with my problem, this answer fixed it for me. – Dialectician

I encountered this error on macOS after upgrading to High Sierra and re-installing MacPorts. Nothing worked until I tried this. – Stacked

Answer 4

As an Ubuntu 14.04 user, upgrading pip to version 9.0.1 fixed this problem for me.

Upgrading pip normally

• Download get-pip.py script
• Run: python get-pip.py

Upgrading/installing pip behind a corporate firewall

• Download get-pip.py script, along with pip, wheel, and setuptools from pypi
• Place all files in the /tmp directory
• Run the following command to install pip: sudo -H python /tmp/get-pip.py --no-index --find-links=/tmp pip

Detector

Answer 5

In case anyone stumbles upon this problem, my solution was to change the packaging version from 22.0 to 21.3.

Pewit

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. – Sanson

I was getting the same error in 21.3 too. But I installed 23.1 and it worked. – Isabellisabella