Python - Can't kill main thread with KeyboardInterrupt

Question

I\'m making a simple multi-threaded port scanner. It scans all ports on host and returns open ports. The trouble is interrupting the scan. It take a lot of time for a scan t

Answer 1

You made your threads daemons already, but you need to keep your main thread alive while daemon threads are there, there's how to do that: Cannot kill Python script with Ctrl-C

Answer 2

When you create the threads add them to a list of running threads and when dealing with ctrl-C send a kill signal to each thread on the list. That way you are actively cleaning up rather than relying on it being done for you.