Not all python programs are compatible with PyPy though. Nor do they get much of a performance boost by switching. Pandas and NumPy for example didn't work on PyPy until less than a year ago. And a good chunk of Python codebases are going to use one of those at some point.
> Not all python programs are compatible with PyPy though.
I'm not sure how this is relevant to my reply... I didn't say PyPy was a replacement for Python. I said PyPy, Lua, and JavaScript are existence proofs that dynamic "hash table" languages don't have to be slow. Therefore, CPython must be slow for some other reason.
