In sqlalchemy we are using this library for python_version<"3.8", using only entry_points.
 Since version 3.7.1 this library is no longer a drop in replacement to the stdlib version, since it will raise deprecation warnings when accessing the dict interface. The stdlib returns a plain dict so it's a bit hard to use a non-dict interface.
 I don't think sqlalchemy is the only package that uses this library as a drop in replacement if older python version, so it would be useful it the dict interface were not deprecated.