Pyment is a python3 program to automatically create, update or convert docstrings in existing Python files, managing several styles.
pip install pyment
$: pyment myfile.py # will generate a patch $: pyment -w myfile.py # will overwrite the file
As of 2021-11-17, the program is not production ready yet for me, I've tested it in one of my projects and found some bugs that needed to be fixed before it's usable. Despite the number of stars, it looks like the development pace has dropped dramatically, so it needs our help to get better :).