Advanced PyO3: Creating A Python CLI With RUST

[@AbdolaMike]

great video! I also never heard of Typer, but I'll definitely check it out as well! looking forward to watching some of your other videos!

[@IsaacHarrisHolt]

Thanks! Glad you found it useful!

[@patricks7611]

Typer is the best. I wish every language had a Lib with which one can create beautiful cli interfaces so easy.

[@IsaacHarrisHolt]

100% agree. There are some good options, but you're generally limited to languages that offer macros or runtime reflection like Python or Rust. You could potentially build something like it in Go, too

[@haydn.murray]

Sick video! - Great content, educational and at the right depth

[@IsaacHarrisHolt]

Thank you! I'm glad you found it useful

[@kovlabs]

that was really excellent!

[@IsaacHarrisHolt]

Thank you! I'm glad you found it helpful

[@skyline00069]

rust is the future.

[@IsaacHarrisHolt]

It's definitely a big part of it!

[@treythomas7647]

Use clap crate and create the cli tool in rust

[@IsaacHarrisHolt]

This is definitely doable! However, there are cases where you only want a small portion of the CLI tool to be written in Rust. If you're mostly relying on network calls, then writing in Python is fine, and probably faster. You can then just rewrite a tiny bit in Rust for data processing, for example. The example in this video only shows the Rust side, but I mostly wanted to demonstrate the interop and teach people about the tools :)

[@ChrisHalden007]

Great video. Thanks

[@IsaacHarrisHolt]

You're welcome! I hope you learned something :)

[@DJenriqez]

Can you also make tutorial, for work with something more advanced ? Like, creating socket connection in rust, and send events to python, or maybe bind something like actix-web/rocket,... ? building computing pipeline like for example pytorch make ?

[@IsaacHarrisHolt]

Interesting ideas! I'm not sure there'd be much benefit in binding to a long-running Rust process like Actix or Rocket, as they don't tend to have much information to pass around, and ultimately you'd just be starting the process from Python. Could you elaborate on the computing pipeline for Pytorch?

[@cameronysidron2662]

How much quicker is this than just using python?

[@IsaacHarrisHolt]

Substantially quicker, unless you use C libraries like numpy (for this specific example). Take a look at speedups introduced by tools like Ruff and Pydantic V2 and you'll see :)

[@oliverli9630]

build Rython (vs Cython) that can translate my python code to rust by just running a `setup.py` please! so that we can just freely code in python without worrying about rust's complex syntax, ownership, lifetime and whatnot. before that happens, or Mojo becomes general-purpose and production ready, Cython is still the king

[@IsaacHarrisHolt]

Interesting concept! Unfortunately, even if you transpile it to Rust, you'll still have to deal with the borrow checker, or the Rust won't compile. The way to get around that would be cloning everything and using wrappers, at which point you might as well just write the Rust.

[@IsaacHarrisHolt]

Also, Rython is a Ruby integration for Python 😉

[@oliverli9630]

@@IsaacHarrisHolt haha, fascinating opensource world! didn't know that Rython is there. i believe somebody will find a way some day haha

[@IsaacHarrisHolt]

Perhaps! It would be great

[@Red-bg8xg]

at this point, just write the cli in rust and drop python all together 😂

[@IsaacHarrisHolt]

This was mostly an example! Also the Typer library is fantastic for CLIs, and would make it easier to expand this in future with other functionality that doesn't have the same performance requirement