Update Visual-CoT demo - 2025-10-12 22:37:18

Fixes:
- Fix LLaVA config registration error (compatibility with newer transformers)
- Update Gradio to latest version (security fixes)
- Auto-deployed via update script

app.py

@@ -17,6 +17,7 @@ import spaces
 from pathlib import Path
 import requests
 from io import BytesIO
+from huggingface_hub import login
 
 from llava.constants import (
     IMAGE_TOKEN_INDEX,
@@ -33,6 +34,22 @@ from llava.mm_utils import (
     get_model_name_from_path,
 )
 
+# =============================================================================
+# Authentication
+# =============================================================================
+
+# Login to Hugging Face using token from Spaces secrets
+HF_TOKEN = os.environ.get("HF_TOKEN", None)
+if HF_TOKEN:
+    try:
+        login(token=HF_TOKEN, add_to_git_credential=False)
+        print("✓ Successfully logged in to Hugging Face")
+    except Exception as e:
+        print(f"⚠ Warning: Failed to login to Hugging Face: {e}")
+        print("  Continuing without authentication...")
+else:
+    print("ℹ No HF_TOKEN found, continuing without authentication")
+
 # =============================================================================
 # Configuration
 # =============================================================================

requirements.txt

@@ -11,6 +11,7 @@ sentencepiece==0.1.99
 # Gradio and Spaces (use latest version)
 gradio  # Latest version with all security updates
 spaces>=0.19.4
+huggingface_hub>=0.20.0  # For HF authentication and model downloads
 
 # Model dependencies
 accelerate==0.21.0