顺时针打印空心正方形

import numpy as np

ss = list('abcdefghijklmnop')
row = len(ss) // 4 + 1
col = row
res = np.reshape([' ' for _ in range(row*col)], [row, col])
curr = 0
curc = 0
while curc < col-1:
    res[curr][curc] = ss.pop(0)
    curc += 1
while curr < row-1:
    res[curr][curc] = ss.pop(0)
    curr += 1
while curc > 0:
    res[curr][curc] = ss.pop(0)
    curc -= 1
while curr > 0:
    res[curr][curc] = ss.pop(0)
    curr -= 1
count = 0
print(res)