How to call a CLI tool with os.system() by using ballback of a button

Using Streamlit
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Call os.system() with st.button on_click callback

I would like to call a CLI tool with os.system() by clicking a button. But my initial code does not work - it hangs.

Steps to reproduce

Code snippet:

import streamlit as st
import os

def call_cli():
    os.system("...")

st.button("call cli",on_click=call_cli)
2

Hi @Bo_Qiang

You can run CLI via Popen from subprocess. Please see the repo:

And the video that shows how to implement this by running R in a Streamlit app:

Hope this helps!

Best regards,
Chanin

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