Alias Object

alias.py

class Alias(object):
    __alias__ = {}
    
    def __getattr__(self, name):
        try:
            real_key = self.__alias__[name]
            real_key_split = real_key.split(".")
            if len(real_key_split) == 1:
                return self.__getattribute__(real_key)

            father = self
            for child in real_key_split:
                father = father.__getattribute__(child)
            return father
        except:
            raise KeyError("object has no attribute {}".format(name))
    
    def __setattr__(self, key, value):
        if key in self.__alias__:
            real_key = self.__alias__[key]
        else:
            real_key = key
        
        real_key_split = real_key.split(".")
        if len(real_key_split) == 1:
            object.__setattr__(self, real_key, value)
        else:
            father = self
            deep_len = len(real_key_split)
            for id, child in enumerate(real_key_split):
                if id != deep_len - 1:
                    father = father.__getattribute__(child)
                else:
                    object.__setattr__(father, child, value)

    def alias(self, item, value):
        self.__alias__[item] = value