pybind11 VS setuptools-rust

Compare pybind11 vs setuptools-rust and see what are their differences.


Seamless operability between C++11 and Python (by pybind)


Setuptools plugin for Rust support (by PyO3)
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pybind11 setuptools-rust
21 5
10,076 349
1.4% 4.0%
9.4 7.7
4 days ago 11 days ago
C++ Python
GNU General Public License v3.0 or later MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of pybind11. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-18.


Posts with mentions or reviews of setuptools-rust. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-08-20.
  • How do i go about building a vidoe conferencing app?
    10 projects | | 20 Aug 2021
    For Python specifically, In addition to using rust-cpython or PyO3, maturin makes it really comfortable to build, package, and publish Rust code into Python packages and, if your niche doesn't quite fit, there's setuptools-python which might do it.
  • Python extensions in Rust
    4 projects | | 13 Aug 2021
    Aside from the PyO3 and rust-cpython crates already mentioned, I'd suggest maturin as a way to integrate your build processes or possibly setuptools-rust.
  • Good use cases for Rust? I'm trying to find a reason to use Rust
    8 projects | | 15 Apr 2021
    Compiled modules for Python stuff (I'd recommend PyO3 but the last one I started was before that worked on stable Rust, so I used its progenitor, rust-cpython. See also maturin or setuptools-rust).
  • Can someone help me understand PyO3? I'm not sure how it works.
    2 projects | | 24 Feb 2021
    ...but you will need to rename the generated library to match import conventions. setuptools-rust or Maturin can help with that.
  • PyO3: Rust Bindings for the Python Interpreter
    18 projects | | 29 Jan 2021
    Between pyodide, pyo3, rust-cpython, and rustpython, I think Pyo3 is the best way to drop in rust in a python project for a speed up, if that is your goal. Some of the demos show using python from rust, but to me the biggest feature is without a doubt compiling rust code to native python modules. I'm using it to speed up image manipulation backed by numpy arrays.

    There’s a setuptools rust [0] extension package that can be used to hook the compilation of the rust into the wheel building or install from source. Maturin [1] seems to be regarded as the new and improved solution for this, but I found that it’s angled toward the using python from rust.

    There’s also the rust numpy [2] package by the same org which is fantastic in that it lets you pass a numpy matrix to a native method written in rust and convert it to the rust equivalent data structure, perform whatever transformation you want (in parallel using rayon [3]), and return the array. When building for release, I was seeing speed ups of 100x over numpy on the most matrix mathable function imaginable, and numpy is no joke.

    I think there is a lot of potential for these two ecosystems together. If there’s not a python package for something, there’s probably a rust crate.

    If anyone is interested the python package that I'm building with some rust backend, its called pyrogis [4] for making custom image manipulations through numpy arrays.

What are some alternatives?

When comparing pybind11 and setuptools-rust you can also consider the following projects:

sparsehash - C++ associative containers

PyO3 - Rust bindings for the Python interpreter

PEGTL - Parsing Expression Grammar Template Library

Optional Argument in C++ - Named Optional Arguments in C++17

sparsehash-c11 - Experimental C++11 version of sparsehash

Hashmaps - Various open addressing hashmap algorithms in C++

LSHBOX - A c++ toolbox of locality-sensitive hashing (LSH), provides several popular LSH algorithms, also support python and matlab.

FunctionalPlus - Functional Programming Library for C++. Write concise and readable C++ code.

xeus-cling - Jupyter kernel for the C++ programming language

dynamic_bitset - Simple Useful Libraries: C++17/20 header-only dynamic bitset

py2many - Python to CLike languages transpiler

opencv-python - Automated CI toolchain to produce precompiled opencv-python, opencv-python-headless, opencv-contrib-python and opencv-contrib-python-headless packages.