anchor.diff:  wcwidth,https://github.com/jquast/wcwidth/blob/master/LICENSE.txt,MIT
   webencodings,https://github.com/gsnedders/python-webencodings/blob/master/LICENSE,BSD-3
   widgetsnbextension,https://github.com/jupyter-widgets/ipywidgets/blob/master/widgetsnbextension/LICENSE,BSD-3
  +zipp,https://github.com/jaraco/zipp/blob/master/LICENSE,MIT
  
positive.code: hdfs,https://github.com/mtth/hdfs/blob/master/LICENSE,MIT
  httplib2,https://github.com/httplib2/httplib2/blob/master/LICENSE,MIT
  idna,https://github.com/kjd/idna/blob/master/LICENSE.rst,BSD-3
  ipykernel,https://github.com/ipython/ipykernel/blob/master/COPYING.md,BSD-3
  ipython,https://github.com/ipython/ipython/blob/master/LICENSE,BSD-3
  ipython-genutils,https://github.com/ipython/ipython_genutils/blob/master/COPYING.md,BSD-3
  
negative.code: itables,https://github.com/mwouts/itables/blob/master/LICENSE,MIT
  jedi,https://github.com/davidhalter/jedi/blob/master/LICENSE.txt,MIT
  joblib,https://github.com/joblib/joblib/blob/master/LICENSE.txt,BSD-3
  js-regex,https://github.com/Zac-HD/js-regex/blob/master/LICENSE,Mozilla 2.0
  jsonschema,https://github.com/Julian/jsonschema/blob/master/COPYING,MIT
  jupyter,https://github.com/jupyter/jupyter/blob/master/LICENSE,BSD-3
  jupyter-client,https://github.com/jupyter/jupyter_client/blob/master/COPYING.md,BSD-3
  