app.py

def randomizer(num_range):

  import random

  random_num = random.randint(0, num_range)

  return random_num

import gradio as gr

randomizer_demo = gr.Interface(
    fn = randomizer,
    inputs = [
        gr.inputs.Slider(0, 1000, 1, label = "Numbers Range"),
    ],
    outputs = "number"

)
randomizer_demo.launch()