Oh, you mean PEP 506. I wrote this program in 02012, and PEP 506 wasn't written until 02015, didn't ship in a released Python until 3.6 in 02016, and even then was only available in Python 3, which I didn't use because it basically didn't work at the time.
PEP 506 is just 22 lines of code wrapping SystemRandom. There's no advantage over just using SystemRandom directly.
It's the long now foundation thing. The long now foundation encourages writing years with five digits to encourage readers to think about long term planning, to plan for a future of humanity that is measured in more than thousands of years.
