Collecting widgetsnbextension==2.0.0rc2 Downloading widgetsnbextension-2.0.0rc2-py2.py3-none-any.whl (1.1MB) Saved /tmp/tmp2p4ica9f/widgetsnbextension-2.0.0rc2-py2.py3-none-any.whl Skipping widgetsnbextension, due to already being wheel.