Also. Final Words on Tail Calls http://neopythonic.blogspot.com/2009/04/final-words-on-tail-calls.html http://neopythonic.blogspot.com/2009/04/final-words-on-t

Also. Final Words on Tail Calls http://neopythonic.blogspot.com/2009/04/final-words-on-tail-calls.html http://neopythonic.blogspot.com/2009/04/final-words-on-tail-... Outside pure functional languages, I think the best way to implement them is to have explicit tail call declaration for functions and/and tail positions and ability to disable them for debugging (or have debugger aware of them). This way you can actually use them to implement useful stuff and rely on them. You get a compiler error if tail call can't be implemented.