Wybthon

Why not build client-side web apps in Python? 😌

Python in the browser?

Tired of writing JS for your frontend? Meet Wybthon. It’s a client-side SPA framework that lets you build interactive web apps entirely in Python. Powered by Pyodide, it features signals-first reactivity and a virtual DOM. Star the repo to show your support!

JavaScript has React. Python has Wybthon.

What would it take for you to use Python in the browser instead of JavaScript? We want to know. ✍️

Wybthon v0.23.0: A unified component model brings fully reactive props, signal-backed Provider context, and dev-mode warnings that make SolidJS-style components clearer, faster, and easier to author. github.com/wybthon/wybtho…

Wybthon v0.22.0: Goodbye full-component rerenders. Components run once, signals embedded in the VNode tree drive surgical DOM updates, and the VDOM keeps batching mutations across Pyodide’s bridge. github.com/wybthon/wybtho…

Web + Python = Wybthon

“This thing is against God. I wanna try it.”

Wybthon v0.21.0: Props are Pythonic, Fragments are invisible, and new reactive primitives for equality control, async ownership, and children memoization bring the API to near-full SolidJS parity. github.com/wybthon/wybtho…

Just shipped Wybthon v0.20.0.

Wybthon v0.20.0: New list primitives map_array, index_array, and create_selector bring fine-grained reactivity to collections, while rewritten For, Index, and Show scopes ensure automatic cleanup on every transition. github.com/wybthon/wybtho…

Wybthon v0.19.0: A SolidJS-style ownership tree replaces flat cleanup stacks, giving components automatic lifecycle management and ownership-based context propagation. github.com/wybthon/wybtho…

Wybthon v0.18.0: Flow controls gain isolated reactive scopes and lazy evaluation, so only the relevant subtree rerenders when a tracked condition or list changes. github.com/wybthon/wybtho…

Wybthon v0.17.0: create_store and produce close the biggest remaining API gap with SolidJS, adding per-path reactive signals and ergonomic batch mutations for nested objects and lists. github.com/wybthon/wybtho…

Wybthon v0.16.0: Component props become reactive getters backed by signals, bringing Wybthon’s component model closer to SolidJS’s signals-first philosophy. github.com/wybthon/wybtho…

Wybthon v0.15.0: A function-only component model, SolidJS-style control-flow primitives, and new reactive utilities bring the framework closer to its “SolidJS for Python” vision. github.com/wybthon/wybtho…

Wybthon v0.14.0: SolidJS-inspired signals replace React-style hooks with create_signal, create_effect, create_memo, on_mount, and on_cleanup; function components now run once and rerender only when tracked signals change. github.com/wybthon/wybtho…

Wybthon v0.13.0: Seven focused submodules and dev-mode error reporting replace the monolithic VDOM, making the rendering core easier to navigate, debug, and extend. github.com/wybthon/wybtho…