So I was solving this leetcode problem of rotating the array right by k places and this is the function I wrote in Python:

class Solution:
    def rotate(self, nums: List[int], k: int) -> None:
        n=len(nums)
        k=k%n
        nums[:n-k]=nums[:n-k][::-1]
        nums[n-k:]=nums[n-k:][::-1]
        nums=nums[::-1]

Now the problem is that when the nums array is printed finally, it’s printing the value stored after line no. 6 and not line no.7. But when I change line no.7 to nums[:]=nums[::-1], it prints the correct solution. I can’t understand why.