I’m trying to add a __set_name__ hook to the descriptor produced by functools.wraps inside a decorator, but it is never called and I don’t see any error messages: import functools def wrap(fn): """Decorator.""" @functools.wraps(fn) def w(*args, **kwargs): return fn(*args, **kwargs) # This never gets called. def set_name(self, obj, name): print(f"inside __set_name__: {self=}, {obj=}, {name=}") w.__set_name__… Read More `__set_name__` hook manually added to `functools.wraps()` descriptor instance never called