> Especially with `slots=True`, dataclasses can take less resources. `slots=True` doesn't exist, though there's an experimental implementation at https://githu

> Especially with `slots=True`, dataclasses can take less resources. `slots=True` doesn't exist, though there's an experimental implementation at https://github.com/ericvsmith/dataclasses/blob/master/dataclass_tools.py https://github.com/ericvsmith/dataclasses/blob/master/datacl... . The main issue is that slots have to exist at class definition, and @dataclass takes an already defined class, so you'd have to create a clone of the class, which is nasty. On top of that you can't always add __slots__ manually, because it conflicts with default field values (and field()s). __slots__ wants to add a descriptor as a class attribute but it can't do that if the default value is already an attribute.