slice_of_slice

zixy.utils.slice_of_slice(s1: slice, s2: slice, length: int) → slice[source]

Compose two slices.

The resulting slice satisfies

a[slice_of_slice(s1, s2, length)] == a[s1][s2]

for some sequence a of length length.

Parameters:

  • s1 – The first slice.

  • s2 – The second slice.

  • length – The number of elements in the data being sliced.

Returns:

The combined slice.