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# __getattribute__(self, name): Automatically called when the attribute name is accessed.
# __getattr__(self, name): Automatically called when the attribute name is accessed and the object has no such attribute.
# __setattr__(self, name, value): Automatically called when an attempt is made to bind the attribute name to value.
# __delattr__(self, name): Automatically called when an attempt is made to delete the attribute name.
class Rectangle:
def __init__(self):
self.width = 0
self.height = 0
def __setattr__(self, name, value):
if name == 'size':
self.width, self.height = value
else:
self.__dict__[name] = value
def __getattr__(self, name):
if name == 'size':
return self.width, self.height
else:
raise AttributeError
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