facebookincubator/cinderx

Compile type annotated Python to fast C extensions

This is Meta's fork of the CPython runtime. The name "cinder" here is historical, see https://github.com/facebookincubator/cinderx for the Python extension / JIT compiler.

Python 3.14, compiled to metal — JIT & AoT native compiler and runtime in Rust. Cranelift backend, ruff parser, Green Tea GC, byte-exact differential testing against CPython.

The most widely used Python to C compiler

Nuitka is a Python compiler written in Python. It's fully compatible with Python 2.6, 2.7, 3.4-3.14. You feed it your Python app, it does a lot of clever things, and spits out an executable or extension module.

GraalPy – A high-performance embeddable Python 3 runtime for Java

HPy: a better API for Python

Shed Skin is a restricted-Python-to-C++ transpiler. Read the introduction below to learn about the restrictions.

A high-performance, zero-overhead, extensible Python compiler with built-in NumPy support