After repeating this a few times, there will come a moment when none of the monkeys in the cage have ever been sprayed by the fire hose; in fact, they’ll never even have seen the hose. But they’ll attack any monkey who goes to get the banana. If the monkeys could speak English, and if you could ask them why they attack anyone who goes for the banana, their answer would almost certainly be: “Well, I don’t really know, but that’s how we’ve always done things around here.”
Quelle: Let’s talk about Python 3.0