[Nipy-devel] help with attributes

[Jonathan Taylor]

>
> This would be accomplished with attributes as follows:
>
> from attributes import readonly
> class Test (object):
>     class x (readonly): default=4.
>
> d = Test()
> d.x = 3.
> d.y = 4.
>  


Yes, but it won't fail with

d.x = 'a'

which is the commented out example in my script, i.e. there is no type 
checking, which I think is another nice feature of traits.

And the two functions I wrote will work for basically any trait, i.e. 
type checking will continue, because it uses the default trait's 
validate method....

-- Jonathan

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