Python UI API

Key building blocks when writing Python-first interfaces.

App

• App(title, width, height, **opts): Main controller. Manages routing, server, and window.
• app.route(path): Decorator to register routes.
• await app.navigate(path): Switch to another route.

Components

• Component: Base class with props, children, render(), and id.
• Layout helpers: HStack, VStack, Center, Spacer, Scroll, Container.
• Elements: Div, Button, Text, Input, Table, Image, Modal.

State

• State(initial): Reactive value. Call to get/set: state() / state(new_value).
• state.subscribe(callback): Subscribe to changes. The callback receives the new value.

Events

• Click, Input, Resize events are dispatched via Dispatcher.
• Use @app.dispatcher.on_click("btn_id") or on_input("field_id") to register handlers.

Server

• TauServer.broadcast(message): Send a JSON message to connected clients.

For concrete examples, see tests/test_components_basic.py and tests/test_events.py.