George Sakkis <[EMAIL PROTECTED]> writes: > What's the best way to simulate dynamically scoped variables ala Lisp ?
Ugh.... check the docs for the python 2.5 "with" statement, which gives you sort of a programmable unwind-protect (more powerful than try/except). You'd have an environment dictionary and use the "with" statement to maintain a stack of shallow-binding cells like in an old-time lisp system, automatically unwinding when the "with" suite finishes. The whole concept sounds hopelessly crufty--I think nobody even does it that way in Lisp any more, you're better off passing an environment around explicitly. If there were a lot of variables, this could be a good application for functional maps, which I've been wanting to implemetn for python. -- http://mail.python.org/mailman/listinfo/python-list
