Development requirement

Optimus is developed with:

  • Test Development Driven (TDD) using Pytest;
  • Respecting flake and pip8 rules using Flake8;
  • Sphinx for documentation with enabled Napoleon extension (using only the Google style);

Every requirement is available in file requirements/dev.txt.

Install for development

First ensure you have pip and python-venv package installed then type:

git clone
cd optimus
make install-dev

Optimus will be installed in editable mode from the last commit on master branch.

When it’s done, you will be able to check for optimus version, just type:

venv/bin/optimus version


Unittests are made to works on Pytest, a shortcut in Makefile is available to start them on your current development install:

make tests


To ease development against multiple Python versions a tox configuration has been added. You are strongly encouraged to use it to test your pull requests.

Before using it you will need to install tox, it is recommended to install it at your system level (tox dependancy is not in tests requirements file):

sudo pip install tox

Then go in the optimus module directory, where the and tox.ini live and execute tox:



sphinx-autobuild is installed for a watcher which automatically rebuild HTML documentation when you change sources.

When environnement is activated, you can use following command from docs/ directory:

make livehtml

And go on