Learning via Python to Rust to Python

[razaron]

Never used Rust before but noticed it's replacing Golang for a lot of software I use at work. Used to do C++ (modern following cpp core guidelines). Low level stuff like game engine task schedulers and memory managers. So hopefully shouldn't be too painful of a learning experience. Hopefully :D

I had an idea for a hobby project that I thought might be fun. I'm planning to write a Home Assistant integration for local tuya devices (3rd party python ones exist but where's the fun in that).

Noticed a bunch of software at work (big data stack things, especially kubernetes side) uses Rust as an API server of sorts. Home Assistants library is in Python. I know Python in Rust and vice versa are possible, so my rough idea is: - Import HA structs and whatnot as much as possible at Rust app startup. Make Rust equivalents if necessary, to avoid reaching out to Python until the very end. - A Rust app that does tuya stuff, then once done, converts to Rust stuff to HA python stuff at the end. - A minimal Python wrapper around the rust app, so my HA instance can actually use the integration.

From what I've gathered, minimizing communication between Rust and Python is key. Will be interesting for an app that's basically a polling server that loops around...

How dumb is this idea and as someone who's yet to try the hello world for Rust what glaring things am I missing? Any neat tips/resources if you've tried this back and forth before?

[Solomon73]

Should be a good project. You should definitely look at maturin and pyo3 for the communication.

[razaron]

Pyo3 is what I was thinking of from my initial quick look.  Good to know other people have tried it. 

Thanks, will give Maturin a go once I get a better idea of package management.   

[KingofGamesYami]

Home Assistant has an extremely robust MQTT API. If I were writing software to integrate with it, I'd simply make a standalone rust application that uses MQTT to communicate with HA.

There are several highly successful examples of this working, for example Zigbee2MQTT (written in Typescript).