1 class C: 2 def __init__(self): 3 self.x = 1 4 self.y = 2 5 self.z = 3 6 7 class D: 8 def __init__(self): 9 self.x = 4 10 self.y = 5 11 self.z = 6 12 13 c = C() 14 d = D() 15 16 attrnames = ["a", "b", "c", "x", "y", "z"] 17 18 print ". c d" 19 20 for attrname in attrnames: 21 print attrname, hasattr(c, attrname) and "1" or "0", hasattr(d, attrname) and "1" or "0" 22 23 print 24 print ". c d" 25 26 for attrname in attrnames: 27 print attrname, 28 try: 29 v = getattr(c, attrname) 30 print v, 31 except AttributeError: 32 print "?", 33 34 try: 35 v = getattr(d, attrname) 36 print v 37 except AttributeError: 38 print "?" 39 40 try: 41 setattr(c, "x", 7) 42 except NotImplementedError, exc: 43 print 'setattr(c, "x", 7): not implemented:', exc.name
