app.py

import os
from diffusers import DiffusionPipeline
import gradio as gr

# Retrieve the Hugging Face token from the environment variable
hf_token = os.getenv("HUGGINGFACE_TOKEN")

# Ensure the token is not None
if hf_token is None:
    raise EnvironmentError("Hugging Face token not found in environment variables. Make sure it's correctly set.")

# Load the model
try:
    pipe = DiffusionPipeline.from_pretrained(
        "Maryamm/Lora_finetune_mnist",  # Your private model's path
        use_auth_token=hf_token,
        force_download=True  # Ensure it downloads the model
    )
    pipe = pipe.to("cpu")  # Ensure it's running on CPU
except Exception as e:
    raise RuntimeError(f"Failed to load model: {e}")

def infer(prompt):
    image = pipe(prompt).images[0]
    return image

gr.Interface(fn=infer, inputs="text", outputs="image").launch()