継承関係を図にする

#!/usr/bin/env python
# -*- coding: utf-8 -*-

def classtree(cls, indent):
	print '.'*indent, cls.__name__
	for supercls in cls.__bases__:
		classtree(supercls, indent+3)
		
def instancetree(inst):
	print 'Tree of', inst
	classtree(inst.__class__, 3)
	
def selftest():
	class A: pass
	class B(A): pass
	class C(A): pass
	class D(B, C): pass
	class E: pass
	class F(D, E): pass
	instancetree(B())
	instancetree(F())
	
if __name__ == '__main__': selftest()

よくわからない