book&gt;=4.4.1 in /opt/conda/lib/python3.8/site-packages (from widgetsnbextension~=3.5.0-&gt;ipywidgets) (6.4.1)
Requirement already satisfied: Send2Trash&gt;=1.5.0 in /opt/conda/lib/python3.8/site-packages (from notebook&gt;=4.4.1-&gt;widgetsnbextension~=3.5.0-&gt;ipywidgets) (1.8.0)
Requirement already satisfied: jinja2 in /opt/conda/lib/python3.8/site-packages (from notebook&gt;=4.4.1-&gt;widgetsnbextension~=3.5.0-&gt;ipywidgets) (3.0.3)
Requirement already satisfied: argon2-cffi in /opt/conda/lib/python