subprocess.popen how wait complete open process

[Paul Bryan]

Sometimes, launching subprocesses can seem like punishment. I don't
think there is a standard cross-platform way to know when a launched
asynchronous process is "fully open" (i.e. fully initialized, accepting
user input).

On Sun, 2022-08-21 at 02:11 -0700, simone zambonardi wrote:
> Hi, I am running a program with the punishment subrocess.Popen(...)
> what I should do is to stop the script until the launched program is
> fully open. How can I do this? I used a time.sleep() function but I
> think there are other ways. Thanks