Decorator

[Martin Blume]

"Sybren Stuvel" schrieb
> Martin Blume enlightened us with:
Don't know if I enlightened anybody ... :-)

> > Another question: Isn't decorating / wrapping
> >  usually done at runtime, so that the @deco 
> > notation is pretty useless (because you'd
> > have to change the original code)?
> 
> Please explain why that would make the @deco 
> notation pretty useless.
> 
Well, if you're changing the original module, you
might as well insert the needed functionality in
the original function, no?
Or rename the original function, write a function
having this original name and calling from it the
original functionality?

Isn't the point of a decorator to change the 
behavior externally, at runtime, possibly changing
it in different ways at different places at different
times?

So why this @deco notation? Can you apply it externally?
Meaning to 
import module
first, then
@deco(module.func)
somewhere later?


Martin