PyO3 Alternatives

Similar projects and alternatives to PyO3

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better PyO3 alternative or higher similarity.

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Reviews and mentions

Posts with mentions or reviews of PyO3. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-27.
  • CPython
    1 project | | 28 Nov 2021
  • Should I learn Rust coming from Python?
    2 projects | | 27 Nov 2021
    You probably should learn Rust. Aside from the process of learning new and different languages making you a better programmer, rust-cpython, PyO3, or Interoptopus make it easy to expose Python APIs from your Rust code. (eg. So it's easy to compile the same codebase as both a Python module and a WebAssembly module.)
  • What do you NOT like about Rust?
    18 projects | | 21 Nov 2021
    Have you looked into abi_stable, flapigen, interoptopus, cbindgen, PyO3, or rust-cpython?
  • Calling Rust from Python example
    2 projects | | 6 Nov 2021
    This is happening in the form of HPy. Eventually perhaps pyo3 can just target HPy instead of the current CPython API, and everything will just work, but not much seems to be happening on the relevant ticket, so I expect it'll be awhile.
    2 projects | | 6 Nov 2021
    Today, I was playing around with, which describes itself as follows:
  • Strengths and applications of Rust
    5 projects | | 6 Nov 2021
    Personally, I'm not willing to compromise on my GUI look and feel, so I use PyQt or PySide to write my GUIs against the QWidget API (I'm a KDE user and Python is the only language with mature memory-safe bindings to Qt) and, if the project can be structured with a frontend-backend separation, I use rust-cpython or PyO3 to write a backend in Rust that the Python frontend can import. Sort of using Python/Rust as a QWidget analogue to the QML/C++ architecture promoted for Qt Quick. (Which I don't use because it's still too incomplete on Kubuntu 20.04 LTS.)
  • From Python to Rust, should I?
    3 projects | | 2 Nov 2021
    also, check out rust-cpython, PyO3, and maturin, among other things. They're really nice options for using Rust for its strengths and Python for its strengths within the same project.
  • We just massively overdelivered on a project thanks to Rust (and Python bindings)
    9 projects | | 31 Oct 2021
    I haven't done extensive comparisons, but my general experience is that if you are just working on something that can translate to looping over array elements, you can get excellent performance with cython or numba. It is likely on-par with rust performance if you can avoid creating a bunch of temporary/intermediate numpy arrays. I typically only reach for rust as a method for writing a python extension (e.g. using pyo3) if the problem involves more complicated data structures or dealing with json, xml or other file types and possibly instances where multi-threading is important. Even in the case of multi-threading, if there is a natural way to break up an array processing problem you can use cython or numba, release the GIL and then use the `concurrent.futures` module to distribute work. Also it's currently the case that pyo3 can have some performance overhead that you don't see with cython, for example
  • Prototype GIL-less CPython shows nearly 20x speedups with 20 threads and good single-thread performance. Will the GIL be removed at some point, finally?
    4 projects | | 15 Oct 2021
    Rust has py03 which lets you write bindings for python really easily, very cool.
  • Which is the best Rust scripting language for Exploratory Data Analysis (EDA)
    7 projects | | 9 Oct 2021
    I'm not aware of a scripting language that can do all of these things. I'm also confused because this is basically what Python already is, and you can use pyo3 for that.
  • Anyone interested in open-sourcing high-level memory-safe bindgen for Dart/Flutter <–> Rust?
    6 projects | | 4 Oct 2021
    My suggestion is to use dart and dart-sys crate names for less opinionated interop (dart-sys being unsafe raw FFI, and dart being a safe wrapper plus higher level things). An aspiration would be for it to be as complete as the pyo3 Python bindings.
  • Should I learn another language?
    4 projects | | 28 Aug 2021
    But if you really want to understand machine learning and related areas, you need to study linear algebra. And for this I recommend this interactive free book: immersive linear algebra. Then realize that the linear algebra routines of those Python libraries aren't written in Python itself, but rather C and Fortran for things running on CPU, and Cuda and OpenCL for things running on GPU. Here your Rust knowledge can be used, because you can write this kind of stuff in Rust instead, and use pyo3 and maturin to write Rust code that can be called from Python. So, see, your Rust knowledge isn't wasted; it's complimentary to every other thing you learn.
  • How to setup maturin for my project? (PyO3 build setup)
    1 project | | 25 Aug 2021
    /qt-gui (based on the PyO3 README)
  • 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.
  • Does rust have function works like eval?
    9 projects | | 19 Aug 2021
    hlua or rlua are what you want for Lua, rust-cpython or PyO3 for Python, rutie for Ruby, and possibly deno_core for JavaScript.


Basic PyO3 repo stats
2 days ago

PyO3/pyo3 is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.

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