We add the flake8 configuration used so we ensure everyone uses the same. We remove the usage of __all__ for non public API. When possible, we rationalize the class name according to its __name__ and module. issue9082 review297061002
issue8201 issue6117 issue2286
issue7169 review44701002
issue7171 review37041002
issue6043 review32811002
Cédric Krier