I got an error in running test.py in ubuntu 18.04 in python 3.6.9

[gimunum]

I have an error in running test.py by typing
python test.py assets/trainmodel/scene1 --savepath output/testdisp.npy --encoder assets/trainmodel/encoder_model_best.pth.tar --gp assets/gp_model_best.pth.tar --decoder assets/decoder_model_best.pth.tar

I downloaded and extracted redkitchen seq-01-formatted in assets/trainmodel/scene1 directory
I also download pretrained models: decoder_model_best.pth.tar, encoder_model_best.pth.tar, and gp_model_best.pth.tar in assets directory.

When I run test.py. I got an error message as follows:
File "test.py", line 3, in
from path import Path
ModuleNotFoundError: No module named 'path'

To solve this, I modified line 3 of test.py to "from pathlib import Path"
Then, I got a new error message as follows:
File "test.py", line 138, in
imgs = sorted((scene / 'images').files('*.png'))
AttributeError: 'PosixPath' object has no attribute 'files'
Could you tell me how to solve this problem?