Update Python runner to filter out result delimiter lines.
Update Python runner to filter out result delimiter lines.

StackStorm/st2,nzlosh/st2,Plexxi/st2,StackStorm/st2,StackStorm/st2,nzlosh/st2,nzlosh/st2,nzlosh/st2,Plexxi/st2,StackStorm/st2,Plexxi/st2,Plexxi/st2