On 9/1/2023 12:15 PM, Pierre Fortin via Python-list wrote:
Hi,
reversed() results are fine until iterated over, after which the
results are no longer available. This was discovered after using
something like this:
rev = reversed( sorted( list ) )
sr = sum( 1 for _ in rev )
# rev is now destroyed
So reversed() results can only be iterated once unlike sorted(), etc...
reversed() is an iterator these days:
>>> l1 = [1, 2, 3]
>>> rev = reversed( sorted( l1 ) )
>>> type(rev)
<class 'list_reverseiterator'>
>
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