class C(object): 
  def __setattr__(self, name, value): 
    print "__setattr__ called:", name, value 
    object.__setattr__(self, name, value) 
 
  def __getattr__(self, name): 
    print "__getattr__ called:", name 
 
  def __getattribute__(self, name): 
    print "__getattribute__ called:",name 
    return object.__getattribute__(self, name) 
 
c = C() 
c.x = "foo" 
print c.__dict__['x'] 
print c.x 

class C(object): 
  a = 'abc' 
  def __getattribute__(self, *args, **kwargs): 
    print("__getattribute__() is called") 
    return object.__getattribute__(self, *args, **kwargs) 
#    return "haha" 
  def __getattr__(self, name): 
    print("__getattr__() is called ") 
    return name + " from getattr" 
   
  def __get__(self, instance, owner): 
    print("__get__() is called", instance, owner) 
    return self 
   
  def foo(self, x): 
    print(x) 
 
class C2(object): 
  d = C() 
if __name__ == '__main__': 
  c = C() 
  c2 = C2() 
  print(c.a) 
  print(c.zzzzzzzz) 
  c2.d 
  print(c2.d.a) 

__getattribute__() is called 
abc 
__getattribute__() is called 
__getattr__() is called  
zzzzzzzz from getattr 
__get__() is called <__main__.C2 object at 0x16d2310> <class '__main__.C2'> 
__get__() is called <__main__.C2 object at 0x16d2310> <class '__main__.C2'> 
__getattribute__() is called 
abc