On 1/10/2013 3:04 AM, Franck Ditter wrote: > 1. Tail recursion is not optimized. We are in 2013, why ? This is known technology (since 1960). > And don't answer with "good programmers don't use recursion", this is bullshit. Here's an article Guido wrote explaining his reasoning: http://neopythonic.blogspot.com.au/2009/04/tail-recursion-elimination.html