Highlighting program variables instead of keywords?

[Terry Reedy]

On 1/26/2014 7:31 PM, Skip Montanaro wrote:
> My son sent me a link to an essay about highlighting program data
> instead of keywords:
>
> https://medium.com/p/3a6db2743a1e/

What it is doing is color coding user-supplied identifiers, with 
different color for each one. I found that confusing to read. The only 
use I can see for this is to track the usage of a particular name, but 
that would be better done by just highlighting one name at a time.

> I think this might have value, especially if to could bounce back and
> forth between both schemes. Is anyone aware of tools like this for
> Python? Bonus points for pointers to an Emacs implementation.

-- 
Terry Jan Reedy