On 4/23/07, Calvin Spealman <[EMAIL PROTECTED]> wrote:
> I will +1 on the self.__super__ suggestion. Hey, its very doable and I
> even whipped it up with a simple metaclass, so it would be a tiny
> change to 'type' in order to actually implement it as a standard
> feature. The demonstration is as follows:
>
> class _superdesc(object):
> def __get__(self, obj, objcls):
> return super(cls, obj)
>
> class autosuper(type):
> def __init__(cls, name, bases, clsdict):
> cls.__super__ = _superdesc()
>
> class A(object):
> __metaclass__ = autosuper
> x = 1
>
> class B(A):
> x = 2
>
> assert B().__super__.x == 1
Does that really work? There's a typo in _superdesc (I don't know
where 'cls' comes from) but if you meant 'objcls', here's what I get::
>>> class _superdesc(object):
... def __get__(self, obj, cls):
... return super(cls, obj)
...
>>> class autosuper(type):
... def __init__(cls, name, bases, clsdict):
... cls.__super__ = _superdesc()
...
>>> class A:
... __metaclass__ = autosuper
... def f(self):
... print 'A'
...
>>> class B(A):
... def f(self):
... print 'B'
... self.__super__.f()
...
>>> class C(A):
... def f(self):
... print 'C'
... self.__super__.f()
...
>>> class D(B, C):
... def f(self):
... print 'D'
... self.__super__.f()
...
>>> D().f()
D
B
B
B
...
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
...
RuntimeError: maximum recursion depth exceeded
STeVe
--
I'm not *in*-sane. Indeed, I am so far *out* of sane that you appear a
tiny blip on the distant coast of sanity.
--- Bucky Katt, Get Fuzzy
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