[Tutor] os.system vs subprocess.Popen args problems

[eryksun]

On Wed, Sep 4, 2013 at 5:14 AM, learner404 <learner404 at gmail.com> wrote:
>
> Yes, this worked :)
>
> subprocess.Popen(["ffmpeg","-f","dshow","-i","video="+videoinputName,"-f",
> "dshow","-i","audio="+audioinputName,"-q","5","%s"%videoFileOutput],
> shell=True)

Using shell=True also sets startupinfo to hide the window. If that's
the only reason you're using the shell, you may as well cut out the
middleman (and potential security hole). Set startupinfo=si, where si
is defined like this:

    si = subprocess.STARTUPINFO()
    si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    si.wShowWindow = subprocess.SW_HIDE