How to call an instance method from a class method of the same class

I have a class as follows:

class MyClass(object):
    int = None
    def __init__(self, *args, **kwargs):
        for k, v in kwargs.iteritems():
            setattr(self, k, v)

    def get_params(self):
        return {'int': random.randint(0, 10)}

    def new(cls):
        params = cls.get_params()
        return cls(**params)

and I would like to be able to do:

>>> obj =
>>>  # must be defined

I mean without creating a new instance of MyClass, but obviously it's not that simple, because calling throws TypeError: unbound method get_params() must be called with MyClass instance as first argument (got nothing instead)

Is there any way to accomplish so? Thanks.


  • No, you can't and shouldn't call an instance method from a class without an instance. This would be very bad. You can, however call, a class method from an instance method. Options are

    1. make get_param a class method and fix references to it
    2. have __init__ call get_param, since it is a instance method

    Also you may be interested in an AttrDict since that looks like what you are trying to do.