> Then I tried some Fibonacci with tail recursion and surprisingly that worked too. I'm impressed, because often when people reimplement the Python interpreter

> Then I tried some Fibonacci with tail recursion and surprisingly that worked too. I'm impressed, because often when people reimplement the Python interpreter they get those wrong. Huh? I thought Python didn't have TCO anyway. Guido had a whole blog post about why it supposedly doesn't belong in Python: https://neopythonic.blogspot.com/2009/04/tail-recursion-elimination.html https://neopythonic.blogspot.com/2009/04/tail-recursion-elim...