On Jun 26, 8:49 am, Andy Freeman <[EMAIL PROTECTED]> wrote: > Map doesn't work on generators or iterators because they're not part > of the common lisp spec, but if someone implemented them as a library, > said library could easily include a map that handled them as well.
Note that this is is a consequence of something that Python does better than lisp. Far more parts of python are defined in terms of named operations which are data-type independent. As a result, they work on things that the implementor (or spec) never considered. That said, it's no big deal for a lisp program that needed an enhanced map that also understands iterators and generators to use it. Compare that with what a programmer using Python 2.4 has to do if she'd like the functionality provided by 2.5's with statement. Yes, with is "just syntax", but it's extremely useful syntax, syntax that can be easily implemented with lisp-style macros. -- http://mail.python.org/mailman/listinfo/python-list
