changeorder

app.py

@@ -17,7 +17,6 @@ import numpy as np
 
 
 
-exec(open('start.py').read())
 
 
 
@@ -113,3 +112,10 @@ if submit_button:
          
     else:
         answer_placeholder.warning("Please type a question.")
+
+
+
+
+
+exec(open('start.py').read())
+

start.py

@@ -2,6 +2,8 @@ st.session_state.em = "0"
 
 try: 
     if 'retriever' not in st.session_state:
+        st.session_state.retriever = ""
+        st.session_state.rag_chain = "" 
         global rag_chain, retriever, em
         import requests
         from langchain.document_loaders import TextLoader