How to do asynchronous calls in streamlit?

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How to run a subprocess programs using thread inside streamlit?

I am trying to run python scripts on button click using subprocess and thread. I could able to run it using the following script def PopenCall(onExit, PopenArgs): def runInThread(onExit, PopenArgs): script_ID = PopenArgs[1] proc = subprocess.Popen(PopenArgs) proc.wait() onExit(script_ID) return thread = threading.Thread(target=runInThread, args=(onExit, PopenArgs)) thread.start() …