app.py

import gradio as gr


def update(name):
    return f"Welcome to Gradio, {name}!"


with gr.Blocks() as app:
    gr.Markdown("### Start typing below and then click **Run** to see the output.")
    with gr.Column():
        gr.File(interactive=False)
        gr.UploadButton(label="Upload an executable file")

app.launch()