class BodyParts:
    pass

class PartyMember:
    def __init__(self, hp):
        self.hp = hp

class Scoundrel(PartyMember):
    def __init__(self, hp, body = BodyParts):
        self.hp = hp
        self.body = body
        body.limbs = ['arm']
        body.hat = 'red'

nah = Scoundrel(3)
print nah.body.limbs, nah.body.hat