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_button = gr.Button("Process")
    greet_button.click(fn = greet, inputs = name, outputs = output)

demo = gr.Interface(fn=greet, inputs="text", outputs="text")

demo.launch()