anchor.diff:      jsonschema functools32 \
       ipythonblocks numpy pandas matplotlib gitpython && \
     pip install scipy netCDF4 && \
  -  rm -rf /home/researcher/.cache
  -
  -# Install pytables
  -RUN /opt/python/bin/pip install numexpr cython && \
  -  /opt/python/bin/pip install git+git://github.com/pytables/pytables@develop && \
  +  pip install numexpr cython && \
  +  pip install git+git://github.com/pytables/pytables@develop && \
  +  ccache --show-stats && \
  +  ccache --clear && \
     rm -rf /home/researcher/.cache
   
   # Install NLTK, textblob & pyStatParser
  
positive.code: # - Useful IPython libraries
  # - SciPy & netCDF4 (which expect numpy to be installed first)
  RUN source /opt/python/bin/activate && \
    pip install --upgrade setuptools pip wheel && \
    pip install \
      tornado pyzmq jinja2 \
  
negative.code: 
  # Install
  # - build dependencies for Python PIP
  # - ccache to make building faster
  # - virtualenv to setup python environment
  # - matplotlib dependencies
  # - scipy dependencies
  