[Doxin]

PyPy is python implemented in RPython, which is technically a python subset. It's so restricted it might as well be a different language though.

[bjoli]

It is restricted in a way that you would restrict yourself to write high speed software in most languages, and I found it is not that restrictive compared to C that you would have to use if you were to write a fast Python library.

[Doxin]

oh for sure, but I still feel like telling people pypy is written in python is misleading. it's written in something significantly like python, but it's not python.

[mjmas]

> technically a python subset

So it can just run under CPython? If so, then that isn't too misleading.

[bjoli]

Yes. It can run under Cpython (2.7).

[nxpnsv]

PyRPy is just less catchy sounding