Hi Guido, Pablo & Lysandros,
I'm excited about this improvement to Python, and was interested to hear about it at the language summit as well. I happen to be friends with Alessandro Warth, whom you cited in the PEP as developing the packrat parsing technique you use (at least in part). I wrote to him to ask if he knew being cited, and he responded in part with these comments. The additional link may perhaps be useful for you:
Alex: (If they had gotten in touch, I would have pointed them at my dissertation, which I think had a simpler description of that algorithm. There's also the Ohm implementation [https://github.com/harc/ohm], where I figured out how to simplify it further.)
The dead increasingly dominate and strangle both the living and the
not-yet born. Vampiric capital and undead corporate persons abuse
the lives and control the thoughts of homo faber. Ideas, once born,
become abortifacients against new conceptions.