Simple threading event example

I'm reading Python 3's Threading documentation but I'm having trouble understanding the material.

I've gotten two timers to run side by side but I don't know how to make these two threads interact with each other. Lock, pass an event or anything.

Could somebody just dump a simple full example here with brief description of what it does?

I'm trying to learn 3.3 so if possible would you be able to post code that works for this version. I'm also finding that the tutorials I find aren't letting me know what version of Python they're exampling.