[python] How do I fix 'ImportError: cannot import name IncompleteRead'?

I tried with every answer avobe, but couldn't make it.

Did this and worked

sudo apt-get purge python-virtualenv
sudo pip install pip -U

After that I just installed virtualenv with pip

sudo pip install virtualenv

I built the virtualenv that I was working on and the package was installed easily. Get into the virtualenv by using source /bin/activate and try to install your package, for example:

pip install terminado

It worked for me, although I was using python2.7 not python3