separate lsof output by column

I am using this command below and trying to separate the columns I only want to get the PID to use it in my python script. I can easily get this line by line but then how to separate into columns in a non hacky way? I can easily split by space but lets face it that is a terrible idea, any suggestions? root@python-VirtualBox:/var/python# lsof | grep TCP lsof: WARNING: can't stat() fuse.gvfsd-fuse file system /run/user/1000/gvfs Output information may be incomplete. COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME sshd 3449 root 3u IPv4 24248 0t0 TCP *:22 (LISTEN) sshd 3449 root 4u IPv6 24257 0t0 TCP *:22 (LISTEN)