Where does the data go when using file_uploader? When does it get deleted?

Community Cloud
24

Here is an exemple of the problem I am talking about, problem that occurs only in streamlit cloud:

import streamlit as st
if 'proof' not in st.session_state:
	st.session_state["proof"]="This text is the initialization of st.session_state['proof']"
	st.write(st.session_state["proof"])
	st.stop()
else:
	st.session_state["proof"]="If you see that on a new page there is a problem"
	st.write(st.session_state["proof"])
reset_button=st.button("Reset session_state")
if reset_button:
	st.session_state={}
	st.experimental_rerun()

If you deploy the code above, when you will open a new page of the app you are suppose to receive only the message “This text is the initialization of st.session_state[‘proof’]” but when you open a second new page you will see that st.session_state[“proof”] already exist so you will receive the message “If you see that on a new page there is a problem” when you are not supposed too.