Update app.py

app.py

@@ -60,12 +60,16 @@ def store_message(chatinput: str, chatresponse: str):
 #gets the precompiled index file which is the context data compiled into a vector index 
 def get_index(index_file_path):
     if os.path.exists(index_file_path):
-        load_json_file(index_file_path)
-        index_size = os.path.getsize(index_file_path)
-        print(f"Size of {index_file_path}: {index_size} bytes") #let me know how big json file is.
-        return GPTSimpleVectorIndex.load_from_disk(index_file_path)
+        print(f"Loading index from {index_file_path}...")
+        try:
+            index = GPTSimpleVectorIndex.load_from_disk(index_file_path)
+            print(f"Index loaded successfully.")
+            return index
+        except Exception as e:
+            print(f"Failed to load index from disk: {str(e)}")
+            sys.exit()
     else:
-        print(f"Error: '{index_file_path}' does not exist.")
+        print(f"Error: Index file '{index_file_path}' does not exist.")
         sys.exit()
 
 def load_json_file(filepath):
@@ -73,7 +77,6 @@ def load_json_file(filepath):
         file_contents = f.read()
         print(file_contents[:500]) # print only the first 500 characters
 
-print(f"Creating index...")
 index = get_index(INDEX_FILE)
         
 # passes the prompt to the chatbot