No macros in Python
Anders J. Munch
andersjm at dancontrol.dk
Mon Dec 16 08:27:06 EST 2002
"Mike Meyer" <mwm at mired.org> wrote:
>
> Macros are a general-purpose mechanism. There are lots of things they
> let you do. Lazy evaluation, infinite lists, CLOS, short-circuit
> booleans, and so on.
No, s-expressions buy you those things, not macros. Macros don't
provide expressiveness, they provide speed and some convenience, say
to let you write:
(define-method methname (arg list) (form))
instead of
(define-method 'methname '(arg list) '(form))
Or maybe that should be
(define-method methname '(arg list) '(form))
Since the macro is obscuring the true nature of the construct, I can't
readily tell what the role of the method name is.
- Anders
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