problem encoutered when test neurd_example.py about open_spiel HOT 7 CLOSED

(venv) hadoop2@hadoop2-OptiPlex-3060:~/open_spiel$ pip list
Package                Version
---------------------- ---------
absl-py                0.7.1
astor                  0.8.0
cloudpickle            1.2.1
contextlib2            0.5.5
cvxopt                 1.2.3
cycler                 0.10.0
decorator              4.4.0
dm-sonnet              1.32
gast                   0.2.2
google-pasta           0.1.7
grpcio                 1.23.0
h5py                   2.9.0
ipython                5.8.0
ipython-genutils       0.2.0
Keras-Applications     1.0.8
Keras-Preprocessing    1.1.0
kiwisolver             1.1.0
Markdown               3.1.1
matplotlib             3.1.1
mock                   3.0.5
networkx               2.2
numpy                  1.17.1
pexpect                4.7.0
pickleshare            0.7.5
pip                    19.2.3
pkg-resources          0.0.0
prompt-toolkit         1.0.16
protobuf               3.9.1
ptyprocess             0.6.0
Pygments               2.4.2
pyparsing              2.4.2
python-dateutil        2.8.0
scipy                  1.1.0
semantic-version       2.8.1
setuptools             41.2.0
simplegeneric          0.8.1
six                    1.12.0
tensorboard            1.14.0
tensorflow             1.14.0
tensorflow-estimator   1.14.0rc1
tensorflow-probability 0.7.0
termcolor              1.1.0
traitlets              4.3.2
wcwidth                0.1.7
Werkzeug               0.15.5
wheel                  0.33.6
wrapt                  1.11.1