Update app.py

app.py

@@ -106,8 +106,6 @@ with st.sidebar:
 
     if api_key:
         os.environ["OPENAI_API_KEY"] = api_key
-    else:
-        os.environ["OPENAI_API_KEY"] = None
 
     st.info("This isn't saved 🙈")
 
@@ -126,10 +124,12 @@ ask = st.button("Ask")
 
 if ask:
 
-    if os.environ["OPENAI_API_KEY"] is None:
+    if api_key is None:
         output = "Whoops looks like you forgot your API key buddy"
-    else:
+    elif:
         output = get_answer(question=user_input)
+    else:
+        output = "What's going on? That's not the right API key"
 
     st.session_state.past.append(user_input)
     st.session_state.generated.append(output)