anchor.diff:  COPY --from=builder /usr/local /usr/local
   COPY --from=builder /opt/conda /opt/conda
   
  -RUN pip --no-cache-dir install cython ipython
  +#RUN pip --no-cache-dir install cython ipython
  +RUN pip --no-cache-dir install ipython
   
   WORKDIR /src
   
  
positive.code:     conda install python=3.7 pip numpy scipy && \
      conda clean -a -y
  
  #RUN echo "../site-packages" > /usr/local/lib/python3.5/dist-packages/site-packages.pth
  
  # Pip installs -- binary
  RUN for x in \
      setuptools \
  
negative.code:     /src/legacypipe/py/{legacypipe,legacyzpts}
  
  # update legacypipe
  RUN cd /src/legacypipe && git pull && git checkout preburn-lslga && git describe && \
    python    -m compileall /src/legacypipe/py/{legacypipe,legacyzpts} && \
    python -O -m compileall /src/legacypipe/py/{legacypipe,legacyzpts}
  