Ensuring subprocesses are dead on exiting Python program

Question

Is there a way to ensure all created subprocess are dead at exit time of a Python program? By subprocess I mean those created with subprocess.Popen().

If not, should

Answer 1

A solution for windows may be to use the win32 job api e.g. How do I automatically destroy child processes in Windows?

Here's an existing python implementation

https://gist.github.com/ubershmekel/119697afba2eaecc6330