Update app.py

app.py

@@ -259,7 +259,7 @@ def initialize_assistants_and_vector_stores():
     )
 
     embeddings_titles = []
-    if os.path.exists('embeddings.pkl'):
+    if not os.path.exists('embeddings.pkl'):
         #Find embeddings of titles from titles.txt
         titles = []
         #if embedding_titles.pkl is absent
@@ -278,7 +278,7 @@ def initialize_assistants_and_vector_stores():
             pickle.dump(data, f)
 
     else: 
-        #Read embedding from that file
+        print("Reading embeddings.pkl")
         # Load both sentences and embeddings
         with open('embeddings.pkl', 'rb') as f:
             loaded_data = pickle.load(f)