update jupyterlab and plotting extensions

base-notebook/Dockerfile

@@ -112,7 +112,7 @@ RUN conda install --quiet --yes 'tini=0.18.0' && \
 RUN conda install --quiet --yes \
     'notebook=6.0.3' \
     'jupyterhub=1.1.0' \
-    'jupyterlab=1.2.5' && \
+    'jupyterlab=2.0.1' && \
     conda clean --all -f -y && \
     npm cache clean --force && \
     jupyter notebook --generate-config && \

scipy-notebook/Dockerfile

@@ -45,13 +45,8 @@ RUN conda install --quiet --yes \
     'xlrd' \
     && \
     conda clean --all -f -y && \
-    # Activate ipywidgets extension in the environment that runs the notebook server
-    jupyter nbextension enable --py widgetsnbextension --sys-prefix && \
-    # Also activate ipywidgets extension for JupyterLab
-    # Check this URL for most recent compatibilities
-    # https://github.com/jupyter-widgets/ipywidgets/tree/master/packages/jupyterlab-manager
-    jupyter labextension install @jupyter-widgets/jupyterlab-manager@^1.1.0 --no-build && \
-    jupyter labextension install jupyterlab_bokeh@1.0.0 --no-build && \
+    jupyter labextension install @jupyter-widgets/jupyterlab-manager@^2.0.0 --no-build && \
+    jupyter labextension install @bokeh/jupyter_bokeh@^2.0.0 --no-build && \
     jupyter labextension install jupyter-matplotlib --no-build && \
     jupyter lab build && \
     npm cache clean --force && \