Update app.py

app.py

@@ -181,13 +181,13 @@ def get_face_embeddings(image_urls):
 
             # If no faces are detected, store an empty list
             if not face_encodings:
-                results[index] = []
+                results[str(index)] = []
             else:
                 # Otherwise, store the first face encoding as a list
-                results[index] = face_encodings[0].tolist()
+                results[str(index)] = face_encodings[0].tolist()
         except Exception as e:
             # If any error occurs during the download or processing, store the error message
-            results[index] = f"Error processing image: {str(e)}"
+            results[str(index)] = f"Error processing image: {str(e)}"
 
     return results