After following the instructions on Doug Hellman\'s virtualenvwrapper post, I still could not fire up a test environment.
[mpenning@tsunami ~]$ mkvirtualenv
In order to successfully install the virtualenvwrapper on Ubuntu 18.04.3 you need to do the following:
Install virtualenv
sudo apt install virtualenv
Install virtualenvwrapper
sudo pip install virtualenv
sudo pip install virtualenvwrapper
Add the following to the end of the .bashrc file
export WORKON_HOME=~/virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python
source ~/.local/bin/virtualenvwrapper.sh
Execute the .bashrc file
source ~/.bashrc
Create your virtualenv
mkvirtualenv your_virtualenv