Update app.py

app.py

@@ -49,8 +49,11 @@ st.markdown('''# Welcome to **SRM RP explorer**!
 This QA demo uses a [Haystack Extractive QA Pipeline](https://haystack.deepset.ai/components/ready-made-pipelines#extractiveqapipeline) with 
 an [InMemoryDocumentStore](https://haystack.deepset.ai/components/document-store) which contains abstracts of 17k+ research papers associated with SRM university.''')
 
+def change_query(*args):
+    st.session_state.question = choice(queries)
+
 query = st.text_input('Enter a query to get started:', value=st.session_state.question, max_chars=100, on_change=reset_results)
-st.button('Random Question', on_click=lambda:st.session_state['question']=choice(queries))
+st.button('Random Question', on_click=change_query)
 
 def ask_question(query):
     start = time.time()