playing a bit with subject. pros and cons of this approach? did i create bicycle again? :-)
class myclass(object): class_instance = None def __new__(cls, *args, **kwargs): if myclass.class_instance == None: return object.__new__(cls) return myclass.class_instance def __init__(self, some): if self.__class__.class_instance == None: # init blocker self.__class__.class_instance = self self.member = some def __del__(self): self.__class__.class_instance = None one_class = myclass(1) print(id(one_class), one_class.member ) two_class = myclass(2) print(id(two_class), two_class.member) -- https://mail.python.org/mailman/listinfo/python-list