PEP318: radical notion

[Arien Malec]

Christophe Cavalaria <chris.cavalaria at free.fr> wrote in
news:412bc7e6$0$4065$626a14ce at news.free.fr: 

> Arien Malec wrote:

>> Is there a valid use case that supports arbitrary magical
>> non-metadata transformations of standalone functions?
> 
> memoize for example. No metadata, only transformation, doesn't really
> apply to a member function in fact ( although it might be possible à

Classically, memoize is implemented as function composition, or as a true 
GoF decorator. It's not clear (to me, at least) how much benefit the 
syntactic sugar gets you.
 
> Why is it that there are always some people who doesn't understand all
> the possibilities of decorators and so want to minimise their
> usefulness ? 

I dunno. Who are those people? My objection to PEP318 is that makes 
something that's really powerful (arbitrary transformation) look like a 
trivial declaration. In Common Lisp, for instance, a defmacro form hints 
that powerful mojo is being performed; the same is not apparent in 
PEP318.

Arien