getting my head around abc

abc_tester.py

import abc


class AbstractV(object):
    __metaclass__ = abc.ABCMeta


    def __init__(self, **kwargs):

        for k, v in kwargs.iteritems():
            setattr(self, k, v)

    @abc.abstractmethod
    def verify(self):
        raise NotImplementedError("bbb")



class V(AbstractV):

    def verify1(self):
        print "verify"


#AbstractV.register(V)

print issubclass(V, AbstractV)
print isinstance(V(), AbstractV)


#v = V()

#v.verify()