At Thursday 7/12/2006 01:58, George Sakkis wrote:
Simon Bunker wrote:
> Basically I want to have the Input class as a gateway that does lots of
> checking when the attibute is assigned or read.
>
> I have had a look at __getattribute__(), but this gets very ugly as I
> have to check if the attribute is an Input class or not.
>
> Also I don't think property() is appropriate is it? All of the
> attributes will essentially be doing the same thing - they should not
> have individual set/get commands.
>
> Is there any way of doing this nicely in Python?
What about __setattr__ ? At least from your example, checking happens
only when you set an attribute. If not, post a more representative
sample of what you're trying to do.
Or search the Python Cookbook - there are zillions of variants on how
to manage properties (using inner classes, using decorators, using
closures, using ...). Traits (code.enthought.com) may be useful too.
--
Gabriel Genellina
Softlab SRL
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