Hi!
Well, you are right that this is at least from a mathematical point of
view correct. I have given this a second thought and you seem to be
right, that, if a[M:N] for M or N < len(a) returns an empty list, many
problems can be solved more elegantly, and probably this is more
interesting than possible negative effects of this behavior.
So, the better arguments seem to be on your side. But in whatever way
this is implemented, IMHO it should be consistent, which isn't the case
at the moment.
Best wishes,
Georg
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