Read the Docs Sphinx Theme

View a working demo over on readthedocs.org.

This is a mobile-friendly sphinx theme I made for readthedocs.org. It's currently in development there and includes some rtd variable checks that can be ignored if you're just trying to use it on your project outside of that site.

This repo also exists as a submodule within the readthedocs itself, so please make your edits to the SASS files here, rather than the .css files on RTD.

Installation

Via package

Download the package or add it to your requirements.txt file:

$ pip install sphinx_rtd_theme

In your conf.py file:

import sphinx_rtd_theme

html_theme = "sphinx_rtd_theme"

html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

Via git or download

Symlink or subtree the sphinx_rtd_theme/sphinx_rtd_theme repository into your documentation at docs/_themes/sphinx_rtd_theme then add the following two settings to your Sphinx conf.py file:

html_theme = "sphinx_rtd_theme"
html_theme_path = ["_themes", ]

How the Table of Contents builds

Currently the left menu will build based upon any toctree(s) defined in your index.rst file. It outputs 2 levels of depth, which should give your visitors a high level of access to your docs. If no toctrees are set the theme reverts to sphinx's usual local toctree.

It's important to note that if you don't follow the same styling for your rST headers across your documents, the toctree will misbuild, and the resulting menu might not show the correct depth when it renders.

Also note that the table of contents is set with includehidden=true. This allows you to set a hidden toc in your index file with the hidden property that will allow you to build a toc without it rendering in your index.

By default, the navigation will "stick" to the screen as you scroll. However if your toc is vertically too large, it revert to static positioning. To disable the sticky nav alltogether change the setting in conf.py.

Contributing or modifying the theme

The sphinx_rtd_theme is primarily a sass project that requires a few other sass libraries. I'm using bower to manage these dependencies and sass to build the css. The good news is I have a very nice set of grunt operations that will not only load these dependecies, but watch for changes, rebuild the sphinx demo docs and build a distributable version of the theme. The bad news is this means you'll need to set up your environment similar to that of a front-end developer (vs. that of a python developer). That means installing node and ruby.

Set up your environment

Install sphinx into a virtual environment.

pip install sphinx

Install sass

gem install sass

Install node, bower and grunt.

// Install node
brew install node

// Install bower and grunt
npm install -g bower grunt-cli

// Now that everything is installed, let's install the theme dependecies.
npm install

Now that our environment is set up, make sure you're in your virtual environment, go to this repository in your terminal and run grunt:

grunt

This default task will do the following very cool things that make it worth the trouble.

It'll install and update any bower dependencies.
It'll run sphinx and build new docs.
It'll watch for changes to the sass files and build css from the changes.
It'll rebuild the sphinx docs anytime it notices a change to .rst, .html, .js or .css files.

Before you create an issue

I don't have a lot of time to maintain this project due to other responsibilities. I know there are a lot of Python engineers out there that can't code sass / css and are unable to submit pull requests. That said, submitting random style bugs without at least providing sample documentation that replicates your problem is a good way for me to ignore your request. RST unfortunately can spit out a lot of things in a lot of ways. I don't have time to research your problem for you, but I do have time to fix the actual styling issue if you can replicate the problem for me.

Before you send a Pull Request

When you're done with your edits, you can run grunt build to clean out the old files and rebuild a new distribution, compressing the css and cleaning out extraneous files. Please do this before you send in a PR.

Using this theme locally, then building on Read the Docs?

Currently if you import sphinx_rtd_theme in your local sphinx build, then pass that same config to Read the Docs, it will fail, since RTD gets confused. If you want to run this theme locally and then also have it build on RTD, then you can add something like this to your config. Thanks to Daniel Oaks for this.

# on_rtd is whether we are on readthedocs.org, this line of code grabbed from docs.readthedocs.org
on_rtd = os.environ.get('READTHEDOCS', None) == 'True'

if not on_rtd:  # only import and set the theme if we're building docs locally
    import sphinx_rtd_theme
    html_theme = 'sphinx_rtd_theme'
    html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]

# otherwise, readthedocs.org uses their theme by default, so no need to specify it

TODO

Separate some sass variables at the theme level so you can overwrite some basic colors.

bunbun/sphinx_rtd_theme