kill subprocess when python process is killed?

Question

I am writing a python program that lauches a subprocess (using Popen). I am reading stdout of the subprocess, doing some filtering, and writing to stdout of main process.

Answer 1

subprocess.Popen objects come with a kill and a terminate method (differs in which signal you send to the process).

signal.signal allows you install signal handlers, in which you can call the child's kill method.