Starting Xscreensaver with a Python "applet"

By "applet" I mean an executable script. I'm assuming this is better than using a bash script from the desktop as, as far as I'm aware, this would only invoke Konsole if even for a second. (And I know about the old, old script-to-executable converter, but I don't know where to find it.)

I'm welcome to any other means, ie, assigning a hotkey via System Preferences, to accomplish this simple task.

There are times when I'm going AFK and would rather see the screensaver right away when I glance back at my system rather than what I was doing for X number of minutes before it starts running.

Carver