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Re:PG: If starting Viaweb today, would you use Lisp? by portLAN on Saturday July 28, 2007 @07:39PM (#37356)
> In my very biased and unlearned view the simplest readable versions are Javascript and Lua.

The Python version listed there doesn't actually meet the requirement (it doesn't return a function, it returns a class instance, and it keeps modifying n every time it's called).

Corrected version:

  def foo(n): return lambda (i): n+i
Which is essentially identical to the Common Lisp version.
Re:PG: If starting Viaweb today, would you use Lisp? by earthboundkid on Sunday July 29, 2007 @06:09AM (#37428)
If it's supposed to be an accumulator, I take it they want the value of n to be changed each time. I'd do:

    def acc(n):
        while True:
            n += yield n
Re:PG: If starting Viaweb today, would you use Lisp? by portLAN on Sunday July 29, 2007 @09:03PM (#37533)
But emphasizing correctness makes my one-liner not work! And reading the original I can see this whole issue was already covered!

BTW, generators are non-callable.