Update app.py

app.py

@@ -101,7 +101,7 @@ def main():
     with st.spinner("Processing"):
         # get pdf text
         if pdf is not None:
-            raw_text = get_pdf_text(pdf_docs)
+            raw_text = get_pdf_text(pdf)
 
         # get the text chunks
         text_chunks = get_text_chunks(raw_text)
@@ -127,6 +127,7 @@ def main():
             st.markdown(user_question)
         st.session_state.messages.append({"role": "user", "content": user_question})
         response = st.session_state.conversation({"question": user_question})
+        st.session_state.chat_history = response["chat_history"]
         with st.chat_message("assistant"):
             st.markdown(response)
             st.session_state.messages.append({"role": "assistant", "content": response})