1r""" 2 3 Test with a class diagram like this:: 4 5 A 6 / \ 7 B C 8 / \ / \ 9 E D F 10 11""" 12 13 14class A(object): 15 pass 16 17 18class B(A): 19 pass 20 21 22class C(A): 23 pass 24 25 26class D(B, C): 27 pass 28 29 30class E(B): 31 pass 32 33 34class F(C): 35 pass 36