Accepting User Inputs with Widgets

In Panel the objects that can accept user inputs are called widgets.

Panel provides widgets similar to the ones you know from Streamlit and some unique ones in addition.

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Migration Steps

To migrate your app’s input widgets to Panel:

• Replace your Streamlit st.some_widget function with the corresponding Panel pn.widgets.SomeWidget class.

You can identify the corresponding widget via the Widgets Section of the Component Gallery.

Example

Integer Slider Example

Lets try to migrate an app using integer slider.

Streamlit Integer Slider Example

import streamlit as st

bins = st.slider(value=20, min_value=10, max_value=30, step=1, label="Bins")

st.write(bins)

Panel Integer Slider Example

You will find Panels input widgets in pn.widgets module.

import panel as pn

pn.extension(sizing_mode="stretch_width", template="bootstrap")

bins = pn.widgets.IntSlider(value=20, start=10, end=30, step=1, name="Bins")

pn.Column(bins, pn.pane.Str(bins)).servable()

Please note that in Panel bins is an instance of IntSlider and not an integer value. To access the value of bins in Panel, you would need to call bins.value.

Check out the IntSlider Guide if you want to learn more about it.