St.button bug

[Libbers]

If you’re creating a debugging post, please include the following info:

1. Are you running your app locally or is it deployed? locally
2. If your app is deployed:
   a. Is it deployed on Community Cloud or another hosting platform? no
   b. Share the link to the public deployed app. n/A
3. Share the link to your app’s public GitHub repository (including a requirements file).
4. Share the full text of the error message (not a screenshot). no error
5. Share the Streamlit and Python versions. current

The following code runs the “on-click” on screen load. Unless I’m missing something the on-click should only run when I click the button.

import streamlit as st

def test():
st.write(“test”)
st.button(‘Press me!’, key=“s-but1”, on_click=test())

[Libbers]

FYI… my indent on the st.write(“test”) line was removed when I submitted the code, please adjust accordingly if you try this test. Python version: 3.12.3

[ferdy]

Remove the () in test on the on_click.

def test():
    st.write('test')

st.button('Press me!', key='s-but1', on_click=test)

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