Pyrrhic library

[Carbecq]

Hi,
I wondered why you don't use the latest version (https://github.com/AndyGrant/Pyrrhic).

[AndyGrant]

I'm not updated to the latest because I'm not too actively working on Ethereal at this time.

Updating would be nice, but I intend to duplicate some work I did in torch when updating, which is roughly seen here KierenP/Halogen@f8e7bef