Slicing: rotate right by k

Slicing carves out part of a list with list[start:stop]. Two slices can be glued back together with +:

nums = [1, 2, 3, 4, 5]
nums[3:]            # [4, 5]      — from index 3 to the end
nums[:3]            # [1, 2, 3]   — up to (not including) index 3
nums[3:] + nums[:3] # [4, 5, 1, 2, 3]

Rotating a list right by k means the last k items wrap around to the front. Note the slice point is len(nums) - k.

Your task

Write rotate(nums, k) that returns a new list rotated right by k. Handle a k larger than the length (use k % len) and the empty list.

rotate([1, 2, 3, 4, 5], 2)   # [4, 5, 1, 2, 3]
rotate([1, 2, 3], 4)         # [3, 1, 2]   — 4 % 3 == 1
rotate([], 3)                # []

Hint: first shrink k with the modulo operator so a k bigger than the list wraps around (guard the empty list before that, or % 0 blows up). Then picture the result as two slices — the last k items and everything before them — swapped front to back.