Update app.py

app.py

@@ -96,7 +96,7 @@ def main():
                 st.success("Done")
 
     # Check if any document is uploaded
-    if st.success("Done"):
+    if pdf_docs:
         user_question = st.text_input("Ask a question from the Docs")
         if user_question:
             user_input(user_question, api_key)