Log Message:
py-setuptools: updated to 40.9.0

v40.9.0
* Added support for setup.cfg-only projects when using the setuptools.build_meta \ 
backend. Projects that have enabled PEP 517 no longer need to have a setup.py \ 
and can use the purely declarative setup.cfg configuration file instead.
* Added support for pkg_resources.parse_requirements-style requirements in \ 
setup_requires when setup.py is invoked from the setuptools.build_meta build \ 
backend.
* Added the path to the PKG-INFO or METADATA file in the exception text when the \ 
Version: header can't be found.
* Removed some placeholder documentation sections referring to deprecated features.