Update app.py

app.py

@@ -4,7 +4,7 @@ import numpy as np
 import gradio as gr
 import requests
 import pandas as pd
-import datetime
+import datetime  # ← THIS WAS MISSING
 from typing import List, Dict, Any
 import hashlib
 
@@ -25,7 +25,15 @@ try:
     VECTOR_DIM = 384
     INDEX_FILE = "incident_vectors.index"
     TEXTS_FILE = "incident_texts.json"
-    model = SentenceTransformer("sentence-transformers/all-MiniLM-L6-v2")
+    
+    # Try to load model with error handling
+    try:
+        model = SentenceTransformer("sentence-transformers/all-MiniLM-L6-v2")
+    except Exception as e:
+        print(f"Model loading warning: {e}")
+        # Fallback to direct loading
+        from sentence_transformers import SentenceTransformer as ST
+        model = ST("sentence-transformers/all-MiniLM-L6-v2")
     
     if os.path.exists(INDEX_FILE):
         index = faiss.read_index(INDEX_FILE)
@@ -39,6 +47,7 @@ except ImportError as e:
     print(f"Warning: FAISS or SentenceTransformers not available: {e}")
     index = None
     incident_texts = []
+    model = None
 
 def save_index():
     """Save FAISS index and incident texts"""