Sorry for silly question, but I can’t find a simple example of how to get persistence of a single numeric variable. Could someone provide me with a code snippet? Thank you

Hello @Fabio_Pasquarella , What error did you have when trying the code snippet @randyzwitch shared? Alternatively to session state, you can use an experimental feature which stores variables directly in your URL, as query parameters. Here’s a demo based on your code sample: import streamlit as s…

Hi @Fabio_Pasquarella - Does this code snippet do what you want? [image] Preserving state across sidebar pages 🎈 Using Streamlit Hello @Codeguyross , Ah, the example uses an outdated version of his session states which has been fixed. Save the original session state cod…

Hello @randyzwitch , unfortunately it doesn’t seem to work for me. I just want to preserve a value of my computed variable along sessions, for istance: if st.button(...): x=st.number_input(...) y=st.number_input(...) myvariable=x*y how do I use session_state in order to preserve myvaria…

Hi @okld , there wasn’t any error, it just didn’t save the values…while your code works,I just had to make some small changes. In fact I used a dictionary variable in addition to a numeric variable - maybe the code provided by @randyzwitch does not work for this reason? I noticed that app_state is …

Persistence of a single variable

Using Streamlit

randyzwitch November 19, 2020, 8:08pm 2

Hi @Fabio_Pasquarella -

Does this code snippet do what you want?

Best,
Randy

Topic		Replies	Views
Can Streamlit keep input variables when refreshing the browser Using Streamlit cache	8	7065	June 27, 2022
State management Using Streamlit session-state , navigation , discussion	1	336	February 15, 2024
Session_state - how to use it to save values while navigating through a multi_page app? Community Cloud session-state	5	2493	May 21, 2025
Make number_input display the same value after switching pages Using Streamlit	1	582	September 18, 2023
Session state is not preserved when navigating pages Using Streamlit	1	6383	October 7, 2023

Persistence of a single variable

Related topics