You can try using sphinx-apidoc.
$ sphinx-apidoc --help
Usage: sphinx-apidoc [options] -o <output_path> <module_path> [exclude_paths, ...]
Look recursively in <module_path> for Python modules and packages and create
one reST file with automodule directives per package in the <output_path>.
You can mix sphinx-apidoc with sphinx-quickstart in order to create the whole doc project like this:
$ sphinx-apidoc -F -o docs project
This call will generate a full project with sphinx-quickstart and Look recursively in <module_path> (project) for Python modules.