anchor.diff:  ENV PYTHONPATH /opt/conda/lib/python2.7/site-packages:$PYTHONPATH
   
   # Install Python and OpenCV with conda
  -RUN conda install --yes -c menpo python=2.7 opencv=2.4.11
  +RUN conda install --quiet --yes --channel menpo python=2.7 opencv=2.4.11
   
   # Create a PlantCV working directory
   RUN mkdir -p /tmp/plantcv
  
positive.code: 
  # Create a directory to mount a host directory
  RUN mkdir -p /data
  WORKDIR /data
  
negative.code: WORKDIR /tmp/plantcv
  
  # Install PlantCV Python prerequisites
  RUN pip install --quiet -r requirements.txt
  
  # Install PlantCV
  RUN python setup.py install
  