Update app.py

app.py

@@ -4,6 +4,7 @@ import numpy as np
 import cv2
 from PIL import Image
 import tempfile # For creating temporary video files
+import os # <--- ADDED: Import the 'os' module
 
 # Marigold specific imports
 from diffusers import MarigoldDepthPipeline, DDIMScheduler
@@ -13,7 +14,7 @@ from huggingface_hub import login # For Hugging Face Hub login if needed
 CHECKPOINT = "prs-eth/marigold-depth-v1-1"
 
 # Check for HF_TOKEN_LOGIN environment variable for private models or higher rate limits
-if "HF_TOKEN_LOGIN" in os.environ: # os is imported implicitly by the Gradio environment, but good to add if running standalone
+if "HF_TOKEN_LOGIN" in os.environ:
     login(token=os.environ["HF_TOKEN_LOGIN"])
 
 device = torch.device("cuda" if torch.cuda.is_available() else "cpu")