code error

[v3551G]

the function 'forward' in model.py is defined with two returned values, while it's used with three returned values in model.py.
the function 'backward' is deliberately deleted.
Furthermore, the file 'preprocess.py' is missing, etc.
Shit-like code！

What is the intention of the author to deliberately release the code full of errors?????????

[HuangJoseph]

If you don't mind that i'm not the author of the code, I may offer some reply of your question.
Actually 'preprocess' is 3-party library, and you can download it by following link ~
old page : https://pypi.org/project/preprocess/
new page : https://github.com/trentm/preprocess
Or you can download this module via "pip preprocess" for convenient.

However the error about un-matching number of return value is still remained for author to solve it ~ haha, I also gave up to use these code.