Op 20/06/2023 om 2:50 schreef Greg Ewing via Python-list:
I would question the wisdom of designing an API that
can return either a sequence or None. If it normally
returns a sequence, and there are no items to return,
it should return an empty sequence.
I guess it depends on the reason why there are no items. If it is simply
because there are no items, then yes, I agree it should return an empty
sequence. But if it is because of some kind of error condition, I don't
think it should. But in that case I don't think the API should return
None either: I feel it should raise an exception.
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