[klabetron]

For the op, awesome article. Quick question: what’s the definition of your `swap(array, i, pivotIndex)` function? Am I missing something? Or just assumes it’s the standard set temp to a, set a to b, and set b to temp?

[sedatk]

Thanks! I've had several iterations on the code samples while writing the article, swap() was just a remnant. You guessed it correct, it was supposed to be replaced with tuple swaps: "(a,b)=(b,a)". Now, done. :)