array rotation using temporary array

def array_rotation(arr,n,k):
	temp=[]
	i=0
	while i<k:
		temp.append(arr[i])
		i=i+1
	while d<n:
		arr[i]=arr[d]
		i=i+1
		d=d+1
    arr[:]=arr[:i] + temp
	return arr
	
print(array_rotation([1,2,3,4,5,6,7],7,3))