Install virtualenv on Ubuntu
Creating and using virtualenv
virtualenv is used to create isolated python environments.
With python3, you can create virtualenv with command
python -m venv FOLDER_NAME
Install virtualenv with setuptools
easy_install virtualenv
Create a folder
mkdir /root/virt_env/
Create virtualenv
virtualenv -p /usr/python3/bin/python3.3 /root/virt_env/virt1 --no-site-packages
Activate virtualenv
source /root/virt_env/virt1/bin/activate
To exit a virtualenv, run
deactivate