[Python-Dev] Class decorators

[Jack Diederich]

On Wed, Mar 29, 2006 at 01:11:06AM -0500, Fred L. Drake, Jr. wrote:
> On Wednesday 29 March 2006 00:48, Fred L. Drake, Jr. wrote:
>  > I think the existing usage for classes is perfectly readable.  The
>  > @-syntax works well for functions as well.
> 
> On re-reading what I wrote, I don't think I actually clarified the point I was 
> trying to make originally.
> 
> My point wasn't that I desparately need @-syntax for class decorators (I 
> don't), or see it as inherantly superior in some way.  It's much simpler than 
> that:  I just want to be able to use the same syntax for a group of use cases 
> regardless of whether the target is a function or a class.
> 
> This fits into the nice-to-have category for me, since the use case can be the 
> same regardless of whether I'm decorating a class or a function.  (I will 
> note that when this use case applies to a function, it's usually a 
> module-level function I'm decorating rather than a method.)

Agreed, let's not have the decorator syntax argument all over again.
Once someone knows how a function decorator works they should be able to guess
how a class decorator works.  In my old patch[1] the grammar production for 
decorators was:

  decorated_thing: decorators (funcdef|classdef)

Which makes sense, once you know how to decorate one thing you know how to
decorate all things.

-jackdied

[1] http://python.org/sf/1007991