ipywidgets fail in Jupyter notebook in Docker CNTK image version 2.2

[seank-com]

This repros using both 2.2-gpu-python3.5-cuda8.0-cudnn6.0 and 2.2-cpu-python3.5

Repro steps

1. Launch the container ( to see the run without error change 2.2 to 2.1 )

$ docker run -it --init --rm -p 80:80 microsoft/cntk:2.2-cpu-python3.5 bash

2. From the container run the following command

source /cntk/activate-cntk && jupyter-notebook --no-browser --port=80 --ip=* --notebook-dir=/cntk/Tutorials --allow-root

3. Create a new notebook page and paste and run the following code

import ipywidgets as widgets

widgets.Dropdown(
  options=['one','two','three'],
  description='Choice:',
  disabled=False,
)

4. According to the issue on Jupyter running the following before running 3 should fix the issue (but it doesn't)

jupyter nbextension enable --py --sys-prefix widgetsnbextension

Expected

Saw instead