Pvelte is an experimental web application framework that combines Python with Svelte-like reactivity. It allows you to write Svelte-style components using Python instead of JavaScript, which then get compiled to JavaScript.
- Write components in Python with Svelte-like syntax
- Reactive state management using $state runes (inspired by Svelte 5)
- Automatic compilation to JavaScript
- Simple component lifecycle and DOM updates
- Clone the repo
git clone https://github.com/AswanthManoj/pvelte.git cd pvelte- Install astral UV
pip install uv - Install dependencies
uv sync
Create a .pvelte component file (eg., counte.pvelte):
<script lang="py">
count = $state(0)
def increment():
count += 1
def decrement():
count -= 1
</script>
<button onclick={increment}>Increment</button>
<h2>The count is {count}</h2>
<button onclick={decrement}>Decrement</button>
Create an HTML file to use your component:
<!DOCTYPE html>
<html>
<head>
<title>Pvelte App</title>
</head>
<body>
<div id="app"></div>
<script src="../src/runtime/runtime.js"></script>
<script src="counter/output/counter.js"></script>
<script>
const app = Counter();
app.mount(document.getElementById('app'));
</script>
</body>
</html>Compile your component:
from src import compile_component
compile_component('path/to/counter.pvelte', 'output/directory')Pvelte works by:
- Parsing .pvelte files to separate Python code and HTML template
- Converting Python state declarations and functions to JavaScript
- Transforming the template with reactive bindings
- Generating a JavaScript component with reactive updates
This is an experimental framework in early development. Currently supports:
- Basic state management
- Simple event handling
- Component compilation
- DOM updates
- Only supports basic state operations
- Limited Python-to-JavaScript transformations
- No component composition yet
- Basic templating features only
Note: All future developments will be done in project FluidSvelte which will be part of FluidFrame experimental section.
- Inspired by Svelte and particularly Svelte 5's runes