Borg pattern demo

borg.py

class Borg(object):
    _state = {}
    def __new__(cls, *p, **k):
        self = object.__new__(cls, *p, **k)
        self.__dict__ = cls._state
        return self

class MyBaseClass(object):
    def __init__(self, base_thing):
        self.base_thing = base_thing

class MyBorgClass(Borg, MyBaseClass):
    def __init__(self, thing=None):
        if thing:
            MyBaseClass.__init__(self, "Base_"+thing)
            self.thing = thing

    class Subordinate(object):
        def __init__(self):
            print("Subordinate accessing Base",MyBorgClass().base_thing)

first_instance  = MyBorgClass("Original")
second_instance = MyBorgClass()
print (first_instance.thing, second_instance.thing)

sub = MyBorgClass.Subordinate()