ImportError: No module named hdrnet.metrics

[SP251]

Please help me for the below issue
After running this command from hdrnet directory, I am getting the below error :
python ./bin/train.py /pretrained_models/ /sample_data/identity/input/ /sample_data/identity/filelist.txt

Traceback (most recent call last):
File "./bin/train.py", line 26, in
import hdrnet.metrics as metrics
ImportError: No module named hdrnet.metrics

[rockeyben]

you can do this in root dir:
export PYTHONPATH=$PYTHONPATH:hdrnet

[TCBocean]

I have used the command line to run, this problem will also occur, then I use pycharm to build the project, running in pycharm will not give an error.