I got this error while running python train.py

[spanthr]

2020-07-20 00:12:07.521981: W tensorflow/stream_executor/platform/default/dso_loader.cc:55] Could not load dynamic library 'cudart64_101.dll'; dlerror: cudart64_101.dll not found
2020-07-20 00:12:07.524773: I tensorflow/stream_executor/cuda/cudart_stub.cc:29] Ignore above cudart dlerror if you do not have a GPU set up on your machine.
Traceback (most recent call last):
File "train.py", line 18, in
import commentjson
ModuleNotFoundError: No module named 'commentjson'