app.py

import streamlit as st
x = st.slider('Select a value')
st.write(x, 'squared is', x*x)


import ipywidgets as widgets
from IPython.display import display, HTML, clear_output, Math
from ipywidgets import interact, interact_manual, HBox, VBox, Layout

display(HBox(children=[widgets.Label(value='Hello, test!', layout=Layout(width='200px'))]))