Python - Virtualenvwrapper on Ubuntu

Install pip

sudo apt-get install python-pip

Install virtualenvwrapper

pip install virtualenvwrapper
export WORKON_HOME=~/Envs
mkdir -p $WORKON_HOME
sudo echo 'source /usr/local/bin/virtualenvwrapper.sh' >> ~/.bashrc
# Restart terminal

Test

mkvirtualenv env1

Reference:
http://virtualenvwrapper.readthedocs.org/en/latest/install.html
http://roundhere.net/journal/virtualenv-ubuntu-12-10/