Collecting widgetsnbextension==3.0.0a6 Downloading widgetsnbextension-3.0.0a6-py2.py3-none-any.whl (1.5MB) Saved /tmp/tmp4hayd0cj/widgetsnbextension-3.0.0a6-py2.py3-none-any.whl Skipping widgetsnbextension, due to already being wheel.