Python factor delivery question

defis_product_availability_matrix(matrix_a, matrix_b):
    row_a = [row for row in matrix_a]
    column_b = [column for column in zip(*matrix_b)]

    if(len(row_a) == len(column_b)):
        result = True
    else:
        result = False

    return result

matrix_x= [[2, 5], [1, 1]]
matrix_y = [[1, 1, 2], [2, 1, 1]]
matrix_z = [[2, 4], [5, 3], [1, 3]]
print(is_product_availability_matrix(matrix_y, matrix_z)) # # True
print(is_product_availability_matrix(matrix_z, matrix_x)) # # True
print(is_product_availability_matrix(matrix_z, matrix_w)) #  False
print(is_product_availability_matrix(matrix_x, matrix_x)) # # True