Please don't take this as "why u no faster?!" as much as I really would enjoy understanding what it takes to bring pypy up to cpython parity. I do see https://doc.pypy.org/en/latest/contributing.html#your-first-... says that pypy has a lot of layers and (I'd suppose) a fraction of the number of people compared to cpython's contributor base, but like I said it's hard to understand from the outside whether it's just a lot of rocks to break, or there are genuine novel optimization or computer science tricks that have to be solved when rolling out a newer version

Above all, thanks so much for your work on pypy - it has really helped me a lot and not from its speed but from my ability to use in in places where getting cpython to run is harder than "curl pypy.tar.bz2 | tar -xjf"