[red2awn]

> Do they just philosophically not agree with PyPy or is it just disinterest?

I think Guido wants the reference implementation to have a simple and straightforward codebase, a JIT is anything but that.

[boultonmark]

And that would be fine, and my mind goes to similar examples like Lua where the reference and the JIT versions co-exist but PyPy has not had the impact that LuaJIT has had (for example) on the LUA community.