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Collecting widgetsnbextension~=3.5.0
  Downloading widgetsnbextension-3.5.2-py2.py3-none-any.whl (1.6 MB)
     |████████████████████████████████| 1.6 MB 3.5 MB/s eta 0:00:01
Requirement already satisfied: traitlets&gt;=4.3.1 in /opt/conda/lib/python3.8/site-packages (from ipywidgets) (5.1.1)
Requirement already satisfied: jupyter-client&lt;8.0 in /opt