Sphinx

# Depend on another extension

Sometimes your extension depends on the functionality of another Sphinx extension. Most Sphinx extensions are activated in a project’s `conf.py` file, but this is not available to you as an extension developer.

To ensure that another extension is activated as a part of your own extension, use the `sphinx.application.Sphinx.setup_extension()` method. This will activate another extension at run-time, ensuring that you have access to its functionality.

For example, the following code activates the `sphinx.ext.autodoc` extension:

    def setup(app):
        app.setup_extension('sphinx.ext.autodoc')

Note

Since your extension will depend on another, make sure to include it as a part of your extension’s installation requirements.