An example of how we could implement a basic `super` in pure Python

simplysuper.py

class SimpleSuper:
    def __init__(self, cls, instance):
        self.cls = cls
        self.instance = instance
    def __getattr__(self, name):
        mro = type(self.instance).mro()
        next_cls = mro[mro.index(self.cls) + 1]
        attribute = getattr(next_cls, name)
        if hasattr(attribute, "__get__"):
            return attribute.__get__(self.instance, self.cls)
        return attribute