On May 3, 4:57 pm, "Jerry Hill" <malaclyp... at gmail.com> wrote: > Is it okay to copy them all at once? Like this: > > class B(A): > def __init__(self, a): > self.__dict__.update(a.__dict__) > self.v2 = 2 > Thanks a lot for the answers, they seem to agree with the requested funcitionality. Kind regards.