Python Macros: Use Cases?

Question

If Python had a macro facility similar to Lisp/Scheme (something like MetaPython), how would you use it?

If you are a Lisp/Scheme programmer, what sorts of things do y

Answer 1

Coming from a C-world, I'd really appreciate being able to do efficient logging of rich messages. Instead of writing

if logger.level > logger.DEBUG:
    logger.log('%s' % (an_expensive_call_that_gives_useful_info(),))

with macros, one could instead do something like

DEBUG('%s' % (an_expensive_call_that_gives_useful_info(),))