John Machin wrote:
reversed came later; returning an iterator rather than a list provides more flexibility.
As in flexibility for the implementer, the day someone invents a sort algorithm that doesn't have to look at all source items before it starts producing output?
Because I fail to see how returning an object that supports forward iteration only is more flexible for the *user* than returning an object that supports random access, mutation, restartable iteration, *and* forward iteration.
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