subprocess.wait() not waiting for Popen process to finish (when using threads)?

Question

I am experiencing some problems when using subprocess.Popen() to spawn several instances of the same application from my python script using threads to have the

Answer 1

I was having issues as well, but was inspired by yours.

Mine looks like this, and works beautifully:

    startupinfo = subprocess.STARTUPINFO()
    startupinfo.dwFlags = subprocess.STARTF_USESHOWWINDOW
    startupinfo.wShowWindow = subprocess.SW_HIDE
    proc = subprocess.Popen(command, startupinfo=startupinfo)
    proc.communicate()
    proc.wait()

Notice that this one hides the window as well.