__getattr__, __setattr__ and pickle

[mwojc]

Bruno Desthuilliers wrote:

>  >>> class Prop(object):
> ...     @apply
> ...     def prop():
> ...         def fget(self): return self._prop
> ...         def fset(self, val): self._prop = val
> ...         return property(**locals())
> ...     def __init__(self, val): self.prop=val
> ...
>  >>> class Hook(object):
> ...     def __getattr__(self, name):
> ...         if name == 'prop':
> ...             return self._prop
> ...         raise AttributeError("yadda")
> ...     def __setattr__(self, name, val):
> ...         if name ==  'prop':
> ...             self.__dict__['_prop'] = val
> ...         else:
> ...             # XXX : INCORRECT IMPLEMENTATION, DONT DO THIS !
> ...             self.__dict__[name] = val
> ...             # correct implementation:
> ...             # super(Hook, self).__setattr__(name, value)
> ...     def __init__(self, val): self.prop=val

Hi!
Finally i ended up with all the suggestions you gave me. The speed is
important to me besause i get/set my attribute a lot... The only doubts i
have are with the @apply decorator, because 'apply' seems to be depreciated
since python 2.3... And another thing: why writing for all
attributes 'self.__dict__[name] = val' in __setattr__ is incorrect?

Thanks a lot!

Greetings,
-- 
Marek