El mar., 21 jul. 2020 a las 17:27, Guido van Rossum (<guido@python.org>) escribió:
A philosophical problem with this is proposal is that it takes a notation that is processed by the bytecode compiler and makes it dependent on user code to be imported from the stdlib. We only do that in rare cases — IIRC the only other case is ‘import’ calling ‘__import__()’.

There's also `__build_class__`, which gets called during class creation.