anchor.diff:               libcairo2-dev \
                pkg-config \
     && pip install ipywidgets==7.0.3 \
  -  && jupyter nbextension enable --py --sys-prefix widgetsnbextension  \
  -  && jupyter labextension install @jupyter-widgets/jupyterlab-manager@0.29.3 \
  -  && pip install ipyleaflet==0.5.1 \
  -  && jupyter nbextension enable --py --sys-prefix ipyleaflet \
  -  && jupyter labextension install jupyter-leaflet@0.5.0 \
  -  && apt-get install -y --no-install-recommends \
  -             build-essential \
  -             libssl-dev \
  -             libffi-dev \
  -  && pip install cryptography \
  +  && jupyter nbextension enable --py --sys-prefix widgetsnbextension \
  +  && jupyter labextension install @jupyter-widgets/jupyterlab-manager@0.30.1 \
     && apt-get purge -y build-essential \
  -             libssl-dev \
  -             libffi-dev \
                dpkg-dev \
                pkg-config \
                fakeroot \
  
positive.code:   && apt-get clean \
    && rm -rf /var/lib/apt/lists/*
  
  # Install the Earth Engine Python API.
  # This is installed as the last step because the package is updated often.
  RUN pip install earthengine-api
  
  USER $NB_USER
negative.code: #TAG 7fd175ec22c7
  FROM jupyter/scipy-notebook@sha256:eaab9c52bf615d5843f006a7ec93a3ec71b323bb0ba723b807fdca41508fc009
  
  LABEL maintainer="Tyler Erickson <tylere@google.com>"
  
  USER root
  
  # Install ipywidgets (https://github.com/jupyter-widgets/ipywidgets).
  RUN apt-get update \
    && apt-get install -y --no-install-recommends \
               libjpeg-dev \
  