pypy VS PeachPy

You'll note I said I was playing with RPython, not PyPy. In my case, I was playing with writing a small interpreter, and comparing the RPython toolchain with the Truffle/Graal framework.

Writing RPython code, even if one is not developing or contributing to PyPy, means writing within a subset of python 2.

> RPython ("Restricted Python") is a subset of Python 2

https://www.pypy.org/posts/2022/04/how-is-pypy-tested.html

And RPython's translator specifically uses pypy, and uses python 2 syntax:

https://github.com/pypy/pypy/blob/main/rpython/bin/rpython#L...

... so getting the RPython toolchain (even if one is intending to improve the PyPy 3+ interpreters) requires setting up a pypy 2 interpreter. Hence the question in my post.

This is a nice exercise!

There is also a very different “write SIMD assembly in Python” approach available through the PeachPy library, one of the least known gems between Python and HPC worlds: https://github.com/Maratyszcza/PeachPy

This is what a dot-product would look like in PeachPy: https://unum-cloud.github.io/usearch/python/index.html#id4

PS: Cppyy and Numba are also fun to use in such projects :)

It's not super maintained but you might enjoy building something with ppci, Pure Python Compiler Infrastructure. It has some front-ends and some back-ends. There's also PeachPy for an assembler. People like using Lark for parsing, I hear.

pip install --upgrade git+https://github.com/Maratyszcza/PeachPy