(formerly pep257)
pydocstyle is a static analysis tool for checking compliance with Python docstring conventions.
pydocstyle supports most of PEP 257 out of the box, but it should not be considered a reference implementation.
pydocstyle supports Python 2.7, 3.4, 3.5, 3.6, 3.7, and pypy.
pip install pydocstyle
$ pydocstyle test.py
test.py:18 in private nested class `meta`:
D101: Docstring missing
test.py:27 in public function `get_user`:
D300: Use """triple double quotes""" (found '''-quotes)
test:75 in public function `init_database`:
D201: No blank lines allowed before function docstring (found 1)
...