crazy_meta.py

# Here we create a metaclass that effectively turns a class scope into a different programming environment where setting variables under one name saves them to another
# This level of madness requires Python 3 to run.

class CrazyDict(dict):
    def __setitem__(self, item, value):
        super().__setitem__("potato_" + str(item), value)

class CrazyMeta(type):
    def __prepare__(*args, **kwargs):
        return CrazyDict()

if __name__ == "__main__":
    class Example(metaclass=CrazyMeta):
        some_var = "hello, world" # let's set a variable!
        
        try: print(some_var) # your normal laws of sanity do not work here
        except NameError: # I can't even use 'as' here
            print("POTATO ERROR!!!")

        print(potato_some_var) # ah, here it is

        potato_some_var += "!" # add an exclamation mark to the end

        print(potato_some_var) # unmodified?
        print(potato_potato_some_var) # oh, of course...