(For the record, I pulled fireplace from master like an hour ago and I last updated neovim yesterday.)

(projectionist is likewise current)

Tim Pope claims this stack trace suggests that I have an old version of fireplace, but I, uh, don’t. I’m confused and scared.

All works fine with the latest master of fireplace for me. Although, I don't use projectionist (or is that unrelated to the actual error)?

It’s likely related 😞 .

Oho! It seems unrelated. Deleted projectionist (I wasn’t really using it), and still:

what's your nREPL version? REPL-y 0.3.7, nREPL 0.2.12 here.

REPL-y 0.3.7, nREPL 0.2.10

Hmm.

I mean, I’ll try with the new cider and see if that helps, but I doubt it will.

Aha! I needed to upgrade neovim’s python host.

Good to know that that’s a thing.