"tonybaloney requested a review from gvanrossum"

GitHub did that automatically, I didn't request a review from Guido on his holiday :-)

My holiday is now officially over. :-)

Wow, codeowners are pinged on forks? That seems like a bug.

I think this PR makes sense... maybe it can be added in its own PR once the JIT is on main? I've really tried to strip this branch down to just the essential stuff (for reviewer focus).

Separately, I feel like valid and jit_code feel more like properties, not methods (since they're just fields on the executor). What do you think?

Wow, codeowners are pinged on forks? That seems like a bug.

It's a feature 😁 iirc there is a flag to disable that.

I think this PR makes sense... maybe it can be added in its own PR once the JIT is on main? I've really tried to strip this branch down to just the essential stuff (for reviewer focus).

Separately, I feel like valid and jit_code feel more like properties, not methods (since they're just fields on the executor). What do you think?

Agreed. You have your work cut out getting through all the comments on the main PR.
I'll raise this one later when the noise dies down.

This is upstream now!