.. _development:

Development
===========

Installing Javascript machinery
-------------------------------

Running the Notebook from the source code on Github requires some Javascript
tools to build/minify the CSS and Javascript components. We do these steps when
making releases, so there's no need for these tools when installing released
versions of the Notebook.

First, install `Node.js <https://nodejs.org/>`_. The installers on the
Node.js website also include Node's package manager, *npm*. Alternatively,
install both of these from your package manager. For example, on Ubuntu or Debian::

    sudo apt-get install nodejs-legacy npm

You can then build the Javascript and CSS by running::

    python setup.py css js

This will automatically fetch the remaining dependencies (bower, less) and
install them in a subdirectory.