cPickle.PicklingError: Can't pickle <type 'instancemethod'>: attribute lookup __builtin__.instancemethod failed

[ghost]

Traceback (most recent call last):
File "main.py", line 271, in
model_save(args.save)
File "main.py", line 85, in model_save
torch.save([model,criterion,optimizer], f)
File "/nfs/project/tools/anaconda2/lib/python2.7/site-packages/torch/serialization.py", line 209, in save
return _with_file_like(f, "wb", lambda f: _save(obj, f, pickle_module, pickle_protocol))
File "/nfs/project/tools/anaconda2/lib/python2.7/site-packages/torch/serialization.py", line 134, in _with_file_like
return body(f)
File "/nfs/project/tools/anaconda2/lib/python2.7/site-packages/torch/serialization.py", line 209, in
return _with_file_like(f, "wb", lambda f: _save(obj, f, pickle_module, pickle_protocol))
File "/nfs/project/tools/anaconda2/lib/python2.7/site-packages/torch/serialization.py", line 282, in _save
pickler.dump(obj)

when I run this code, and cause this problem. How should I solve it?

[DavidNemeskey]

From README.md: "Python 3 and PyTorch 0.4 are required for the current codebase."

Try running it under Python 3.