Maturin

Spec sheet

Purpose

Maturin builds and publishes Rust crates with Python bindings, as well as Rust binaries, as Python packages.Read 7 Oct 2026 · maturin.rs

Integrations

The guide describes integration with tox and recommends using uv to publish packages with `uv publish`.Read 7 Oct 2026 · maturin.rs

License

Maturin is licensed under either Apache License 2.0 or MIT, at the user's option.Read 7 Oct 2026 · maturin.rs

Bindings

It supports PyO3, cffi, UniFFI, and binary bindings.Read 7 Oct 2026 · maturin.rs

Bindings limitation

For cffi and binary projects, the `bindings` setting is required because Maturin cannot automatically detect those bindings.Read 7 Oct 2026 · maturin.rs

Build commands

Its main commands are `maturin new` to create a configured Cargo project, `maturin build` to build wheels, and `maturin develop` to build and install a module in the current virtual environment.Read 7 Oct 2026 · maturin.rs

Build workflow

The `maturin build` command builds wheels into `target/wheels` by default and does not upload them.Read 7 Oct 2026 · maturin.rs

CI integration

The `maturin generate-ci` command can generate a GitHub Actions workflow for building and publishing release artifacts.Read 7 Oct 2026 · maturin.rs

Development limit

The guide notes that `maturin develop` is faster but does not support every feature available when installing after `maturin build`.Read 7 Oct 2026 · maturin.rs

Development workflow

The `maturin develop` command builds a crate and installs it as a Python module in the current virtual environment.Read 7 Oct 2026 · maturin.rs

Installation

The guide lists binary downloads, pipx, uv, and pip as installation options.Read 7 Oct 2026 · maturin.rs

Linux compatibility

For widely usable Linux wheels, the guide says to use a manylinux Docker image or build with zig; Maturin checks generated libraries and assigns wheel platform tags.Read 7 Oct 2026 · maturin.rs

Linux wheel compatibility

For widely usable Linux wheels on PyPI, the guide says to use a manylinux Docker image or build with zig.Read 7 Oct 2026 · maturin.rs

Operating systems

The guide lists Windows, Linux, macOS, and FreeBSD as supported wheel-building platforms.Read 7 Oct 2026 · maturin.rs

Package publishing

Maturin can upload built packages to PyPI.Read 7 Oct 2026 · maturin.rs

Packaging

Maturin can build source distributions when configured through `pyproject.toml` and invoked with `--sdist`.Read 7 Oct 2026 · maturin.rs

Platform releases

Downloadable binaries are built for Windows, Linux, and macOS, with listed architectures including x86, ARM, and PowerPC variants.Read 7 Oct 2026 · maturin.rs

Publishing

The guide says Maturin can upload packages to PyPI and recommends `uv publish` for publishing packages built with `maturin build`.Read 7 Oct 2026 · maturin.rs

Python interpreters

Maturin has basic PyPy and GraalPy support.Read 7 Oct 2026 · maturin.rs

Python support

The guide says Maturin supports building wheels for Python 3.8 and later, with basic PyPy and GraalPy support.Read 7 Oct 2026 · maturin.rs

Security and compliance

The guide describes manylinux compatibility checks for Linux wheels; no security certification or compliance program is stated on the pages reviewed.Read 7 Oct 2026 · maturin.rs

Supported Python versions

Maturin supports building wheels for Python 3.8 and later.Read 7 Oct 2026 · maturin.rs

Trusted publishing

Generated GitHub Actions workflows can use PyPI trusted publishing with OpenID Connect instead of an API token.Read 7 Oct 2026 · maturin.rs

Where Specifiction places it

• Python Package Managers#18 of 277.5