How to create and use Python virtual environments for development

virtualenv.rst

Creating a Python Virtual Environment

Install virtualenv and virtualenvwrapper

$ sudo pip install virtualenv virtualenvwrapper

Add the following lines to your $HOME/.bashrc

# Virtualenv
export WORKON_HOME='/Users/omaciel/hacking'
source '/usr/local/bin/virtualenvwrapper.sh'

Create a new virtual environment

$ mkvirtualenv -a <path of project>  <env name>

Create a new virtual environment and choose version of python

$ mkvirtualenv -a <path of project>  -p <python to use> <env name>

Create a new virtual environment automatically installing dependencies

$ mkvirtualenv -a <path of project>  -r requirements.txt <env name>

Deactivating a virtual environment

$ deactivate

Activating a virtual environment

$ workon <env name>