Starting with the 4.0 release of [[ https://github.com/PyCQA/pydocstyle | pydocstyle ]], the tool [[ https://github.com/PyCQA/pydocstyle/issues/275 | supports the Google/Napoleon docstring convention ]] (the doc isn't fully consistent in saying it does, but yes, it really does !).
To use it:
```
$ pip3 install pydocstyle
$ pydocstyle --convention=google foo.py
```
We should lint all our docstrings with pydocstyle (and yes, reaching 0 warnings/errors it's gonna take a while…).