dont use numpy. just use a pure python def matrix_rotate_right(a): """ ------------------------------------------------------- Returns a copy of a 2D matrix rotated to the right. a must be unchanged. Use: b = matrix_rotate_right(a) ------------------------------------------------------- Parameters: a - a 2D list of values (2d list of int/float) Returns: b - the rotated 2D list of values (2D list of int/float) ------------------------------------------------------- """

output example

 1 2 3 4 5 6 7 8 9 10 11 12

to

10 7 4 1 11 8 5 2 12 9 6 3