app.py

import gradio as gr

def greet(name):
    return "Hello " + name + "!"

with gr.Blocks() as demo:
    name = gr.Textbox(label = "Please enter your name below:")
    output = gr.Textbox(label = "Output:")
    greet_btn = gr.Button('Process')
    greet_btn.click(fn = greet,
                   inputs = name,
                   outputs = output)

demo.launch(share=True)