Code Editor for app.py

import streamlit as st
import streamlit.components.v1 as components

st.title("Embedded stlite-sandbox Demo")

# Create the HTML component with the stlite-sandbox iframe
components.html(
    """
    <iframe
        src="https://edit.share.stlite.net/"
        width="100%"
        height="600px"
        frameborder="0"
    ></iframe>
    """,
    height=650,
)

st.markdown("""
### About stlite-sandbox

This demo embeds the stlite-sandbox editor directly in your Streamlit app. 
stlite-sandbox is a web-based environment where you can:

1. Write and test Streamlit code directly in the browser
2. Share your Streamlit apps easily
3. Experiment with Streamlit features without installing anything

The embedded editor above is fully functional and you can use it to create and test 
Streamlit apps right here!
""")