Reacton running in Panel

reacton-in-panel.py

# $ panel serve reacton-in-panel.py
import panel as pn
import reacton
import reacton.ipywidgets as w


@reacton.component
def ButtonClick(label="Hi"):
    clicks, set_clicks = reacton.use_state(0)
    def increment():
        set_clicks(clicks + 1)
    return w.Button(description=f"{label}: Clicked {clicks} times", on_click=increment)

# this creates just an element, Panel doesn't know what to do with that
element = ButtonClick(label="Ola")
# we explicitly ask Reacton to render it, and give us the widget
button_widget, render_context = reacton.render_fixed(element)
# mark this panel to be served by the panel server
pn.panel(button_widget).servable()