Fvyyl Indeed

Oh. My. God. I had no idea.

From now on, I shall only do pynff-based OO. Or BB, as it were.

#!/usr/bin/env python
#-*- coding: rot13 -*-

qrs whfg_n_fvyyl_rknzcyr():
   cevag "Bu, ubj fvyyl guvf vf.".qrpbqr('rot13')

vs __anzr__ == '__main__':
   riny('just_a_silly_example')()

Yes, it runs fine. Try it. (Note: in Vim you can use g? on selected text. Just so you know.)