ValueError: Cell is empty

[Kznnd]

when i run the commond in ubuntu
python preprocess.py -lang_src de -lang_trg en -share_vocab -save_data m30k_deen_shr.pkl
An error occurs as follows:

` (att) guest1@GPU2:~/zjl/attention-is-all-you-need-pytorch-master$ python preprocess.py -lang_src de -lang_trg en -share_vocab -save_data m30k_deen_shr.pkl
Namespace(data_src=None, data_trg=None, keep_case=False, lang_src='de', lang_trg='en', max_len=100, min_word_count=3, save_data='m30k_deen_shr.pkl', share_vocab=True)
[Info] Get source language vocabulary size: 5375
[Info] Get target language vocabulary size: 4556
[Info] Merging two vocabulary ...
[Info] Get merged vocabulary size: 9521
[Info] Dumping the processed data to pickle file m30k_deen_shr.pkl
Traceback (most recent call last):
File "preprocess.py", line 337, in
main_wo_bpe()
File "preprocess.py", line 332, in main_wo_bpe
pickle.dump(data,f)
File "/home/guest1/anaconda3/envs/att/lib/python3.6/site-packages/dill/_dill.py", line 267, in dump
Pickler(file, protocol, **_kwds).dump(obj)
File "/home/guest1/anaconda3/envs/att/lib/python3.6/site-packages/dill/_dill.py", line 454, in dump
StockPickler.dump(self, obj)

......

File "/home/guest1/anaconda3/envs/att/lib/python3.6/pickle.py", line 476, in save
f(self, obj) # Call unbound method with explicit self
File "/home/guest1/anaconda3/envs/att/lib/python3.6/site-packages/dill/_dill.py", line 1177, in save_cell
f = obj.cell_contents
ValueError: Cell is empty `

How can I solve it?

[wangchuan]

same problem here

[Eric-dot]

same problem here!!
run in win10, How to solve it, I using the requirement environment
dill==0.3.3
python==3.6.12
pytorch==1.2.0

[zhangsan5032]

都是伸手党啊

[haiyLiu]

I hava the same problem, refer to this issuehttps://github.com/uqfoundation/dill/issues/383, it solved my problem!