[Python] Numpy 행별 합계값을 기존 배열에 추가하는 방법

import numpy as np

list_1 = [[1,1,1,1,1], [2,2,2,2,2]]
list_2 = [[3,3,3,3,3]]
list_3 = [[4,4,4,4,4]]

array_1 = np.array(list_1)
array_2 = np.array(list_2)

array_combine = np.concatenate([array_1, array_2, list_3], axis=0)
print(array_combine, array_combine.shape)

array_row_sum = array_combine.sum(axis=1)
print(array_row_sum, array_row_sum.shape)

array_row_sum_reshape = array_row_sum.reshape((len(array_row_sum),1))
print(array_row_sum_reshape, array_row_sum_reshape.shape)

array_result = np.hstack([array_combine, array_row_sum_reshape])
print(array_result, array_result.shape)