[Python-Dev] Re: __metaclass__ and __author__ are already decorators

[Bob Ippolito]

On Aug 21, 2004, at 5:34 PM, Paul Morrow wrote:

> Phillip J. Eby wrote:
>
>> At 05:15 PM 8/21/04 -0400, Paul Morrow wrote:
>>> Christophe Cavalaria wrote:
>>>
>>>> can it be ? There's also the fact that it can't handle named 
>>>> parameters
>>>> like a regular function call. You can't write that :
>>>> def foo():
>>>>     __decoration__ = (1,1,param=True)
>>>
>>>
>>> As far as I know, we can't do that with the current decorator 
>>> proposals either.
>> @decoration(1,1,param=True)
>> def foo(whatever):
>>     pass
>
> Ok, then whatever changes you've made to the Python system to support 
> that would allow the same syntax to be used in what I'm suggesting.
>
>     def foo(whatever):
>         __decoration__ = (1,1,param=True)
>
>     def decoration(decoratedFunc, a, b, param=False):
>         __decorator__ = True
>         __version__ = '0.1'
>         # body of 'decoration' decorator function goes here...

Congratulations, this by far the worst suggestion yet!  I'm -Inf on 
this :)

@decoration(1,1,param=True) makes no changes whatsoever to the Python 
system.  Everything after the @ is really just an expression.  The @ 
just implies that the result of the next class or def gets put through 
the result of the @expression before it is thrown into the namespace.

-bob