Is it possible to set Sphinx autodoc module path from Jupyter Book?

Question

Is it possible to set the Sphinx autodoc Python module path from Jupyter Book, for example via _config.yml?

I'm using Jupyter Book to document a Python system and publish to Read The Docs. I can set the module path from Sphinx by adding code like this to conf.py:

import os
import sys
sys.path.insert(0, os.path.abspath("my/module/path"))

However, I'd prefer to control the path entirely from the Jupyter Book side. Otherwise I have to manually edit conf.py after generating the file with jupyter-book config sphinx path/to/book.