setting a property via self.__dict__
Aahz
aahz at pythoncraft.com
Thu Oct 31 00:09:36 EST 2002
In article <efa417af.0210301251.2b380da at posting.google.com>,
Frank von Delft <fvondelft at syrrx.com> wrote:
>
>Um... after some mulling: so what is the advantage of having the
>property in the class dictionary? Because I realised it's quite happy
>in the instance dictionary, like such:
>
>>>> class A(object):
> def __init__(self,**kwargs):
> self.a = property(self._getA,self._setA)
> self.__dict__.update(**kwargs)
> def _getA(self):
> return self._a
> def _setA(self,a):
> self._a = a
>
>Really I should ask: why do all the examples show it defined in the
>class dictionary?
Because new-style classes don't do magic method lookups in class
instances. Guido considered the ability to do that with classic classes
a wart and "fixed" it.
--
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
Project Vote Smart: http://www.vote-smart.org/
More information about the Python-list
mailing list