With abstract subclasses on can use register to add other classes as a "virtual" subclass, what would be a way to do that for a single instance based on it fullfilling some criteria? The "sensible" alternative I came up with is using virtual subclassing but changing the instance check dunder method class Controller: def __init__(self,smart) pass class SmartController(ABC): def __instancecheck__(self) return self.smart but this didn't work since Controllers metaclass actually has to have an altered instance_check for this to work, which makes me think you might have to do something with metaclasses, but if Controller allready has some other metaclass I don't know if it would work... possible reason for doing this: Controller might have some childclasses which the individual instances can either be "smart" or "stupid" I realize this might be a very bad thing to do but if there is some "most sensible" way to do it then I would like to know how Also would like to know why this is actually a bad idea if it is one Continue reading...
