app.py

import gradio as gr

import torch

if torch.cuda.is_available():
    device = torch.device("cuda")
    print('GPU is available')
else:
    device = torch.device("cpu")
    print('GPU is not available')

def uppercase(text):
    return text.upper()

iface = gr.Interface(fn=uppercase, inputs="text", outputs="text")
iface.launch()