This is kind of bike-shedding (since that&#x27;s such a small part of the language), but I also think there are arguments for using 0-indexing with open upper bounds.<p>Guido explains his choice best:<p><a href="https:&#x2F;&#x2F;plus.google.com&#x2F;115212051037621986145&#x2F;posts&#x2F;YTUxbXYZyfi" rel="nofollow">https:&#x2F;&#x2F;plus.google.com&#x2F;115212051037621986145&#x2F;posts&#x2F;YTUxbXYZ...</a>