app.py

import gradio as gr

def hello(name):
    return f"Hello, {name}!"

demo = gr.Interface(
    fn=hello,
    inputs=gr.Textbox(label="Your Name"),
    outputs=gr.Textbox(label="Greeting"),
    title="Hello World"
)

if __name__ == "__main__":
    demo.launch(server_name="0.0.0.0", server_port=7860)