v4

app.py

@@ -13,9 +13,6 @@ if "messages" not in st.session_state:
 for message in st.session_state.messages:
     with st.chat_message(message["role"]):
         st.markdown(message["content"])
-        
-if "messages" not in st.session_state or st.sidebar.button("Clear message history"):
-    st.session_state["messages"] = [{"role": "assistant", "content": "How can I help you?"}]
     
 openai.api_key = st.sidebar.text_input("OpenAI API Key", type="password")
 
@@ -26,6 +23,9 @@ if not openai.api_key:
     st.info("Please add your OpenAI API key to continue.")
     st.stop()
     
+if "messages" not in st.session_state or st.sidebar.button("Clear message history"):
+    st.session_state["messages"] = [{"role": "assistant", "content": "How can I help you?"}]    
+
 if prompt := st.chat_input("What is up?"):
     st.session_state.messages.append({"role": "user", "content": prompt})
     with st.chat_message("user"):