app.py

import streamlit as st
import time

def main():
    st.title("File Upload Example")

    # File upload section
    uploaded_file = st.file_uploader("Upload a file")

    if uploaded_file is not None:
        st.markdown("### Uploaded File Contents:")
        file_contents = uploaded_file.read().decode("utf-8")
        st.markdown(file_contents)

    # Wait for 5 seconds
    with st.spinner("Processing..."):
        time.sleep(5)

    # Show completed message
    st.success("Processing completed!")

if __name__ == "__main__":
    main()