On 30 October 2013 10:18, Nick Coghlan <ncoghlan@gmail.com> wrote:
b = a[::-1]
over
b = a[Slice(None, None, None, reversed=True)]
I could probably omit some of those None arguments, but I probably wouldn't simply because I can't remember which are optional.
Why does that give you trouble when it's identical to what you can omit from the normal slice syntax? (and from range)
slice(reversed=True)? I can omit all the arguments in the indexing case (OK, I enter a step of -1, but that's equivalent to reversed=True and a step of 1, which is default). And yet currently slice() fails as a minimum of 1 argument is needed. I'm not saying that it's ill-defined, just that I'd get confused fast. So "better to be explicit" (but verbose). And [::-1] is clear and simple (to me, at least). Paul