title: Python Port Listener (Like NC)
body: <p>So I would like to make a Python port listener that resembles Netcat (nc -l -v -p 2121). I have looked around and haven't been able to find what I am looking for. I just want to be able to give a port via a CLI argument and listen on that port (python listen.py 2121). If anyone could point me in the right direction it would be much appreciated.</p>