Install the package (or add it to your requirements.txt file):

$ pip install sphinx_rtd_theme

In your file:

import sphinx_rtd_theme

extensions = [

html_theme = "sphinx_rtd_theme"


Adding this theme as an extension is what enables localization of theme strings in your translated output. If these strings are not translated in your output, either we lack the localized strings for your locale, or you are using an old version of the theme.

Via Git or Download


Installing directly from the repo is deprecated. Static assets won’t be included in the repo in a future release.

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 file:

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



sphinx_rtd_theme requires Python 2.7 or Python 3.4 or greater.


sphinx_rtd_theme depends on at least Sphinx 1.6 although, we recommend at least Sphinx 2 to take advantage of the html5 writer. The html4 writer is still supported however, it is deprecated and support will be removed in the near future.