[plt-scheme] can't find gensym in languages "Intermediate student in lambda" and "Advanced Student"

Ratandeep Ratti wrote:
> Hi all,
>    I was currently on exercise 32.1.3 in HTDP which says to use function 
> gensym, but
> I can't find it in either of the languages "Intermediate student with 
> lambda" and "Advanced Student",
> 
> I do see the function gensym in the module language, can I include this 
> function  without changing
> the language to module.?

You can write a teachpack that provides gensym and add it to your ISL or 
ASL program.

The teachpack itself would be written in the module language and look like:

#lang scheme
(provide gensym)

Save this file somewhere, then go to Language > Add Teachpack ... > Add 
Teachpack to List... and select this file.

David