nshepperd comments on Prisoner’s Dilemma (with visible source code) Tournament

[nshepperd]

In both #lang racket and #lang scheme, (eval form) by itself apparently runs form in a basically empty namespace. I’ve personally been using the following incantation for evaluating anything in the “standard” namespace:

(define (ueval x)  
(define ns (make-base-namespace))  
(eval x ns))

Then (ueval source-code) evaluates source-code in a clean namespace with all the normal builtins, including eval.