anchor.diff:      pip install pyocr && \
       /tmp/clean-layer.sh
   ENV TESSERACT_PATH=/usr/bin/tesseract
  -
  -# Install vowpalwabbit
  -# Instructions: https://github.com/VowpalWabbit/vowpal_wabbit/wiki/Python#installing
  -RUN apt-get install -y libboost-dev libboost-program-options-dev libboost-system-dev libboost-thread-dev libboost-math-dev libboost-test-dev libboost-python-dev zlib1g-dev && \
  -    pip install vowpalwabbit && \
  -    /tmp/clean-layer.sh
   
   # For Facets
   ENV PYTHONPATH=$PYTHONPATH:/opt/facets/facets_overview/python/
  
positive.code:     # Use a fixed apt-get repo to stop intermittent failures due to flaky httpredir connections,
      # as described by Lionel Chan at http://stackoverflow.com/a/37426929/5881346
  RUN sed -i "s/httpredir.debian.org/debian.uchicago.edu/" /etc/apt/sources.list && \
      apt-get update && apt-get install -y build-essential unzip cmake && \
      pip install --upgrade pip && \
      # enum34 is a backport of the Python 3.4 enum class to Python < 3.4.
      # No need since we are using Python 3.7. This is causing errors for packages
  
negative.code:     # b/149905611 The geopandas tests are broken with the version 0.7.0
      pip install geopandas==0.6.3 && \
      pip install nnabla && \
      pip install vowpalwabbit && \
      /tmp/clean-layer.sh
  
  # Tesseract and some associated utility packages
  