You are one of the "couple of people" I was referring to. :) I know SPARK's docstring use influenced PLY. PLY doesn't use Earley, but "Earley" does come up in

You are one of the "couple of people" I was referring to. :) I know SPARK's docstring use influenced PLY. PLY doesn't use Earley, but "Earley" does come up in the show notes of an interview with Beazley, PLY's author, at https://www.pythonpodcast.com/episode-95-parsing-and-parsers-with-dave-beazley-and-erik-rose/ https://www.pythonpodcast.com/episode-95-parsing-and-parsers... . No transcript, and I'm not going to listen to it just to figure out the context. https://github.com/lark-parser/lark https://github.com/lark-parser/lark "implements both Earley(SPPF) and LALR(1)". Kegler, the author of that timeline I linked to, is the author of Marpa. Home page is http://savage.net.au/Marpa.html http://savage.net.au/Marpa.html . The most recent HN comments about it are from a year ago, at https://news.ycombinator.com/item?id=24321395 https://news.ycombinator.com/item?id=24321395 .