Python virtual environment basics

venv_basics.md

Configure Python development environment

Install pip, virtualenv, and virtualenvwrapper

$ wget https://bootstrap.pypa.io/get-pip.py
$ sudo python3 get-pip.py
$ rm get-pip.py
$ sudo pip install virtualenv virtualenvwrapper

Update .bashrc

To facilitate using Python virtual environments we'll add the below to the end of our existing ~/.bashrc file:

# virtualenv and virtualenvwrapper
export WORKON_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
source /usr/local/bin/virtualenvwrapper.sh

Source the ~/.bashrc file to put the above environment variables and virtual environment settings into effect:

$ source ~/.bashrc

Python virtual environment

Create and activate a Python virtual environment:

$ mkvirtualenv myenv -p python3
$ workon myenv

Install required modules via requirements.txt file:

$ pip install -r requirements.txt