时报错 raise AttributeError(attr + " not found")

1. 问题：我用python3 的() 时报错。错误信息如下代码，
2. 错误日志：

Traceback (most recent call last):
  File "./", line 179, in main
    train_dataset = (save_traind)
  File "/anaconda3-5.0.1/lib/python3.6/site-packages/scipy/sparse/", line 244, in __setitem__
    if (isintlike(i) and isintlike(j) and 0 <= i < [0]
  File "/anaconda3-5.0.1/lib/python3.6/site-packages/scipy/sparse/", line 576, in __getattr__
    raise AttributeError(attr + " not found")
AttributeError: shape not found

3. 找到了对策：原来是dump 的时候需要加参数 protocol=0
4. 具体的：

abc_file = list(XXX)
with open('abc_asve.pkl','wb') as sf:
  (abc_file, sf, protocol=0)
with open('abc_save.pkl', 'rb') as rf:
  abc_read = (sf)

Done!

参考 ：
/joblib/joblib/issues/177