Update app.py

app.py

@@ -62,9 +62,14 @@ You have a simple vocabulary, elementary grammar and sentence structure, and spe
 
 """
 
-
+def name_to_role(name):
+    return 'assistant' if name == 'tutor' else 'user'
+def reverse_name_to_role(name):
+    return 'assistant' if name == 'student' else 'user'
+    
 st.sidebar.title("Sidebar")
-if st.button('Say hello'):
+
+if st.sidebar.button('Say hello'):
     with st.chat_message(name_to_role('tutor')): # tutor
         # assistant == tutor
         message_placeholder = st.empty()
@@ -92,11 +97,6 @@ if "messages" not in st.session_state:
     st.session_state.tutor_message_system_prompt = {"role": "system", "content": context_tutor}
     st.session_state.student_message_system_prompt = {"role": "system", "content": context_student}
 
-def name_to_role(name):
-    return 'assistant' if name == 'tutor' else 'user'
-def reverse_name_to_role(name):
-    return 'assistant' if name == 'student' else 'user'
-
 # Set initial message from tutor
 st.session_state.messages.append({ 'name' : 'tutor', 'content' : "Hi Becky! I'm your tutor, Bernadette. It's nice to meet you. How are you doing?" })