> If the algorithm works on a dictionary or set just as well as the list I had in mind, so much the better. This is the key difference in attitude. I don't wan

> If the algorithm works on a dictionary or set just as well as the list I had in mind, so much the better. This is the key difference in attitude. I don't want a language that frictionlessly helps me screw up. If what I'm doing might work but nobody actually knows, I want some kind of warning. At the very least I need to add your code to my test coverage.