super and properties

Gonçalo Rodrigues op73418 at mail.telepac.pt
Sun Jan 5 00:05:11 CET 2003


Suppose I override a property in a subclass,  e.g.

>>> class test(object):
... 	def __init__(self, n):
... 		self.__n = n
... 	def __get_n(self):
... 		return self.__n
... 	def __set_n(self, n):
... 		self.__n = n
... 	n = property(__get_n, __set_n)
... 	
>>> a = test(8)
>>> a.n
8
>>> class test2(test):
... 	def __init__(self, n):
... 		super(test2, self).__init__(n)
... 	def __get_n(self):
... 		return "Got ya!"
... 	n = property(__get_n)
... 	
>>> b = test2(8)
>>> b.n
'Got ya!'

How do I call the super implementation of the n property using super?
The obvious (to me) does not work:

>>> print super(test2, b).n
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
AttributeError: 'super' object has no attribute 'n'

I know I can do

>>> test.n.__get__(b)
8
>>> 

But I do achieve the same using super (for an MI scenario)?

TIA and with my best regards,
G. Rodrigues




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