Bootleg classes

classes.py

import functools


def gi(s, k):
    try:
        return s[k]
    except KeyError:
        raise AttributeError(k) from None


attrdict = type("attrdict", (dict,), {"__getattr__": gi, "__setattr__": dict.__setitem__})


def method(d: attrdict):
    def deco(func):
        @functools.wraps(func)
        def _inner(*args, **kwargs):
            return func(d, *args, **kwargs)

        d[func.__name__] = _inner
        return func

    return deco


def MyClass(constructor_arg):
    body = attrdict()

    @method(body)
    def __init__(self):
        # your constructor here
        self.heck = constructor_arg

    @method(body)
    def something(self):
        print(self.heck)

    @method(body)
    def what_the_fuck(self, a):
        self.heck = a
        self.something()


    body["__init__"]()
    return body

ins = MyClass(2)
ins.something()
ins.what_the_fuck(1)