Update app.py

app.py

@@ -117,12 +117,12 @@ def main():
 
     st.header("Chat with multiple PDFs :books:")
 
-    
-
     vectorstore = None
-    conversation = None
+    conversation = None   
 
 
+    if user_question := st.text_input("Ask a question about your documents:"):
+        handle_userinput(user_question, vectorstore, conversation)
     
    
 
@@ -145,7 +145,7 @@ def main():
                     vectorstore = get_vectorstore(text_chunks)
 
                 # create conversation chain
-                    conversation = get_conversation_chain()
+                    st.session_state.conversation\ = get_conversation_chain()
 
                     st.success("Files have been processed into a vector store.")
 
@@ -153,7 +153,7 @@ def main():
 
 
     
-    st.subheader("Chat Bot")
+    
     if user_question := st.text_input("Ask a question about your documents:"):
         handle_userinput(user_question, vectorstore, conversation)