pycrusty 0.2.0

A practical Python-to-Rust transpiler for a supported subset of Python

pythrust

pythrust transpiles a supported subset of Python into Rust and ships with a tiny runtime so the generated code is easy to inspect and extend.

Install

pip install .

Run from the command line

pythrust examples/example.py -o generated.rs

Read from standard input:

python -m pythrust - < examples/example.py

Use as a library

from pythrust import Transpiler, TranspilerConfig

source = """
def add(a, b):
    return a + b
"""

transpiler = Transpiler(TranspilerConfig(optimize=True))
rust_code = transpiler.transpile(source)
print(rust_code)

Supported subset

• imports
• functions
• assignments and augmented assignments
• if / elif / else
• while
• for over range(...)
• break, continue, return, pass
• expressions, calls, attributes, subscripts, lists, tuples, dicts
• constant folding and a few small algebraic simplifications

This project is intentionally small and practical: it aims to make transpiled output easy to read first, then optimize it incrementally.