A question in split dataset

[lhj0402]

The error information:
Loading pickle file
Traceback (most recent call last):
File "E:\anaconda\envs\tfenv\Scripts\sample-script.py", line 11, in
load_entry_point('tbcnn', 'console_scripts', 'sample')()
File "e:\git\clonecode\tbcnn-master\sampler\commands.py", line 52, in main
args.func(args)
File "e:\git\clonecode\tbcnn-master\sampler\trees.py", line 15, in parse
data_source = pickle.load(file_handler)
AttributeError: Can't get attribute 'Print' on <module '_ast' (built-in)>

I can't load dataset. What is 'Print'?