PyO3

PyO3 provides Rust bindings for the Python interpreter, enabling seamless integration of high-performance Rust code into Python projects.

PyO3 bridges the gap between Python's flexibility and Rust's memory safety and speed. It allows developers to write native Python modules in Rust or embed a Python interpreter within a Rust binary. The framework handles complex boilerplate (like reference counting and GIL management) automatically through procedural macros like #[pyfunction] and #[pymethods]. By leveraging Rust's zero-cost abstractions, PyO3 powers critical performance layers in industry-standard tools like Polars, Pydantic, and Cryptography.

https://pyo3.rs