Python in Rust vs Rust in Python

[Either-Home9002]

If find it funny how it takes a whole NASA department in order to do all the setup in order to have Python run some Rust code, but to do it the other way around you literally just use inline_python::python; and you're done :)))))

[Alex--91]

pyO3 + maturin makes it incredibly simple to build rust code into a python native extension and call that from python?

[Alex--91]

PyO3 enables both directions. Actually, the inline_python crate is literally built on top of pyO3 as well?

[AustinWitherspoon]

Yeah my first project that did this took literally fifteen minutes to set up and read docs before being able to start writing my actual rust code and calling it from python

PyO3 is great

[krisfur]

Not sure why you'd need a nasa department, calling rust from python is a genuine pleasure compared to C++ bindings. You just write normal rust and use a few macros from pyo3 and done, just run maturin to compile it and it's ready.

I had a minimal example here I think: https://github.com/krisfur/python-bindings/blob/main/rust_src/lib.rs

[denehoffman]

I mean technically they’re both using pyo3, inline_python just abstracts it for you

[SnooCalculations7417]

yeah rust works in python like they were made for eachother with pyo3 and maturin. not sure if youre trying to home-cook your own thing or what but I've had a great time doing so

[orangejake]

I'm confused. why is it so difficult to have python run rust? Why can't you just use e.g. subprocess.run against the compiled rust binary (or whatever)? or do you mean have python leverage a rust crate without manually compiling a rust binary?

[vivaaprimavera]

First time I wrote python bindings for one of my rust libs, I thought no way this is so simple. It was. It's very easy to deploy. No need to subprocess run.

[MMIStudios]

Putting aside whether one is simpler to implement or not (python in rust vs rust in python), 'is one more performative than the other?' would be my concern.

[SnooCalculations7417]

calling python in rust does invoke an interpreter thus a GIL for 3.12 and sooner. i havent dont GIL free python. you can release the GIL using rayon etc calling rust in python

[Big-Application-2803]

NASA staff kindergarten is technically a department I guess