[Python-ideas] The Descriptor Protocol...

[Nick Coghlan]

On Thu, Mar 3, 2011 at 9:53 PM, Andrew Svetlov <andrew.svetlov at gmail.com> wrote:
> Something like:
> Point -> var_name = namedtuple(var_name, 'xy')
> ???
>
> Take into acount, `->` operatior is not allowed into regular Python
> code, only in function annotations as annotation for result value.
> Maybe that close enough to our case?

Not a bad idea at all, although I would use "as" for the purpose (it's
already a keyword we use for funny not-quite-assignment operations).

class Person:
 name as n = Str(n)
 address as a = Str(a)

Point as p = namedtuple(p, 'x y')

Might be too magic for most people's tastes, but it would definitely
reduce the repetition problem.

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia