Close port on killing python the process with children

Question

When my python program is killed with -9 normally it also closes the port it's listening.

BUT when it has some child processes running created with Popen (which I don't really need to kill on killing parent), while killing -9 the parent it seems to leave the port in use.

How can I force to close the port even if there are children?

Answer 1

好的，我在执行Popen时似乎可以解决close_fds = True的问题。