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def classtree(cls, indent):
print '.'*indent, cls.__name__ # print class name here
for supercls in cls.__bases__: # recur to all superclasses
classtree(supercls, indent+3) # may visit super > once
def instancetree(inst):
print 'Tree of', inst # show instance
classtree(inst.__class__, 3) # climb to its class
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()
class Emp: pass
class Person(Emp): pass
bob = Person()
instancetree(bob)
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