SIWrapper demo, https://github.com/wishdev-project/wishlib

siwrapper_demo.py

from wishlib.si import si, sisel, SIWrapper


class Rig(SIWrapper):
    def __init__(self, model):
        super(Rig, self).__init__(model)
        # add your own stuff here
        pass

    @property
    def members(self):
        if not hasattr(self, "_members"):
            self._members = list()
        return self._members

    @classmethod
    def new(cls, name):
        model = si.ActiveSceneRoot.AddModel(None, name)
        return cls(model)

    @SIWrapper.auto_update
    def add_member(self, member):
        self.obj.AddChild(member)
        self.members.append(member)


if not sisel.Count:
    # create a new rig, standard stuff...
    rig = Rig.new("AwesomeRig")
    for name in ("l_leg", "r_leg", "l_arm", "r_arm", "spine", "head"):
        module = si.ActiveSceneRoot.AddNull(name)
        rig.add_member(module)
    si.SelectObj(rig.obj)
else:
    # get rig from selection, attributes are automagically initialized using
    # serialized data.
    rig = Rig(sisel(0))
    for member in rig.members:
        print "Name:", member.FullName, ", Type:", member.Type