我有一个用于分析大型 csv 文件的脚本，所以我需要启动多处理。我使用了multiprocessing模块并且它工作正常但是如果我尝试将输出列表写入 csv 文件，它会引发错误：
TypeError: 'ApplyResult' object is not iterable
我查找了一些解决方案，包括多处理：TypeError: 'int' object is not iterable but could not solve the problem。这是代码：
from multiprocessing import Pool
import csv
pool = Pool()
nodes = [['1001', '2008-01-06T02:12:13Z', ['']],
['1002', '2008-01-06T02:13:55Z', ['']],
['1003', '2008-01-06T02:13:00Z', ['Lion', 'Rhinoceros', 'Leopard', 'Panda']],
['1004', '2008-01-06T02:15:20Z', ['Lion', 'Leopard', 'Eagle', 'Panda', 'Tiger']],
['1005', '2008-01-06T02:15:48Z', ['Lion', 'Panda', 'Cheetah', 'Goat', 'Tiger']],
['1006', '2008-01-06T02:13:30Z', ['']],
['1007', '2008-01-06T02:13:38Z', ['Cheetah', 'Tiger', 'Goat']]]
def nodes_to_links(nodes_list):
output_list = []
for ii, elem in …