On Wed, Nov 14, 2018 at 5:14 AM David Allemang <alleman...@gmail.com> wrote: > > That is not what slice.indices does. Per help(slice.indices) - > > "S.indices(len) -> (start, stop, stride) > > "Assuming a sequence of length len, calculate the start and stop indices, and > the stride length of the extended slice described by S. Out of bounds indices > are clipped in a manner consistent with handling of normal slices. > > Essentially, it returns (S.start, len, S.step), with start and stop adjusted > to prevent out-of-bounds indices.
And to handle negative indexing. >>> slice(1,-1).indices(100) (1, 99, 1) A range from 1 to -1 doesn't make sense (or rather, it's an empty range), but a slice from 1 to -1 will exclude the first and last of any sequence. ChrisA _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
