explicit logging vs. aop solutions (re: http://www.robustsoftware.co.uk/post/39211594225/logging)

gistfile1.py

@explained # adding it by AOP at startup or by codegen or whatever
def transient_condition(self, user)
    character = random_character
    return user.first_name.start_with?(random_character), "Checking if first_name:#{user.first_name} starts with character:#{character}"
end

def explained(wrapped, *args, **kwargs):
  log.info('entering %s with params %s, %s' % (wrapped.__name__, args, kwargs))
  result, explanation = wrapped(*args, **kwargs)
  log.info('exiting %s with params %s, %s - return value is %s because %s' % (wrapped.__name, args, kwargs, result, explanation))
  return result