app.py

import gradio as gr
import tempfile
from PIL import Image

def create():
    color='blue'
    width=512
    height=512

    # Create a temporary file
    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".png")
    print(f"Temporary file created at: {temp_file.name}")
    
    # Create a new image with the given mode and size
    image = Image.new("RGB", (width, height), color)
    
    # Save the image to disk
    image.save(temp_file, format='PNG')
    
    return temp_file.name

# usage:

with gr.Blocks(delete_cache=(2,4)) as demo:
    out = gr.Image(type='filepath')
    btn = gr.Button("GO!")
    btn.click(create,inputs=[],outputs=out)
    
demo.launch()