Updating/saving csv to local machine with user input

[randyzwitch]

Hi @Mathea, welcome to the Streamlit community!

We showed a similar example here, where you basically are reading and writing to the same file to increment a counter:

Incrementing Counter for button clicks

Hi @Bishop_Sankhe, welcome to the Streamlit community! This took a little more thinking than I expected! But you should be able to do this using the following: import streamlit as st with open("file.txt", "r") as f: a = f.readline() # starts as a string a = 0 if a == "" else int(a) # check if its an empty string, otherwise should be able to cast using int() if st.button("Click me"): a += 1 with open("file.txt", "w") as f: f.truncate() f.write(f"{a}") a

That example overwrites the file each time, so that the counter increments. But you could take the same pattern to append to a file, where you write each additional record to the end of the file.

Best,
Randy