Update app.py

app.py

@@ -48,7 +48,7 @@ def main():
     user_input = st.text_input("Enter special parameters of the building:")
     
     if st.button("Submit"):
-        if selected_option == ""
+        if selected_option == "":
             st.write("Please choose the property address")
         else:
             st.session_state['user_select_value'] = selected_option