======= on os x ======= .. highlight:: bash First install Hombrew_:: $ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" .. _Hombrew: http://brew.sh/ Then do:: $ brew update $ brew doctor Next, install python from Hombrew_:: $ brew install python This will also install ``pip``. Install ``virtualenv`` from ``pip``:: $ pip install virtualenv See :doc:`setup-combox` for setting up combox in ``develop`` mode.