cyclic output

import numpy as np
array = np.array([[1, 2, 3, 4, 5], [6, 7, 8, 9, 10], [11, 12, 13, 14, 15],
                  [16, 17, 18, 19, 20]])
Y, X = array.shape
D = np.array([(1, 0, X - 1), (0, 1, Y - 1), (-1, 0, X - 1), (0, -1, Y - 1)])
x = y = 0
for dx, dy, n in D:
    for _ in range(n):
        print(array[y][x])
        x += dx
        y += dy