Suspend any one app when not in focus. Prints each app name in focus. On exit (ctrl-c), app will resume as normal.
Start desired app, then run script with: python myAppNap.py [app name] Ex. python myAppNap.py Unity
If no argument is given, will monitor apps in focus
Tested in Mac OS Sierra
Done - Disallow suspending Terminal (useful if you're launching from Terminal)
DONE - do nothing if invalid name given
Integrate with rumps so this can be accessed from the status bar instead of terminal
Select multiple apps to nap at the same time