Lightweight Python UI runtime inspired by Pythonista.ui

[o-murphy]

HI there!

I'm trying to develop a lightweight UI toolkit that aims to be
conceptually compatible with Pythonista.ui public API.

Highlights:

• Uses custom python+rust based runtime emulation of original drawing context
• Displaying windows and handling input devices (mouse and touch, keyboard in the future) possible with sdl or winit+softbuffer
• Aims to have shim to make it possible use in the native Pythonista.ui
• Aims to simulate UIKit controls with smooth animations
• TTF fonts support

The main idea is to create the ability to develop graphical applications for Pythonista on a non-Mac PC, and as a side-effect have very simple softbuffer-based gui framework for systems like RaspberryPi
Contributions and feedback are welcome.

The bellow is a proof that same ui app example be launched on linux and on Pythonista.ui

_20260222_180135.webm

pytoui_ios.mp4

[o-murphy]

update

I got same fonts drawing behavior on both platforms Pythonista and PC

[o-murphy]

@omz Can i get more info about ui module? I'm not asking about internal sources, I just ask about public class/methods signatures that is not fully declared in docs and examples

[o-murphy]

update

• Seems like I fixed flex issues
• Also I did refactor a View props to protect it from direct change, that makes my View behave much more like original ones and simplifies inheritance. It also guarantees the Children views will have same attributes with no explicit super().init().

I did added few examples that work on PC same as on Pythonista app
I still have issues with init args/kwargs. The inspect isn't work, so I spend a lot of time to resolve it to be able to run some examples from the Pythonista app for behavior testing. I wanna complete some things before I'll continue to implement other views like scrollview and textedit, etc.

[o-murphy]

update

• I did internal view logic incapsulation, to make it's public interface looks much more native for the Pythonista.ui.
• Fixed Rect.inset() behaviour
• I work on Path.add_clip(), not works as needed so some of my custom views drawing unexpected