NotImplementedError: Slice step must be 1

[TomNicholas]

[tomwhite]

We could implement this for step > 1 by making the output chunks be 1/step of the size of the input in the indexed dimension. This would ensure that the output chunk doesn't read from a potentially large number of input chunks if step was large (100 in this case), which could be slow and unreliable. We could follow with a rechunk to restore the original chunk size. I think the hardest bit would be doing the indexing arithmetic.

Are you blocked on this or did you find a workaround @TomNicholas?

Also, note there's a test covering this case (it currently just checks for NotImplementedError).