[BangPypers] class inheritance query

[Nitin Kumar]

Hi All,

Let say I have some classes X,Y and Z with some static values

class X:
    a=1

class Y:
    b=2

class Z:
    c=3

Now I want to have class A such that it can have variables from class Y or
Z (any one only) depending on runtime so that while using i can use

X.a and X.b     or      X.a and X.c

how can i implement this using property or metaclass or any other idea is
welcomed?

-- 
Nitin K