anchor.diff:  
   RUN echo "../site-packages" > /usr/local/lib/python3.5/dist-packages/site-packages.pth
   
  +# Pip installs -- binary
  +RUN for x in \
  +    setuptools \
  +    wheel \
  +    intel-numpy \
  +    intel-scipy \
  +    psycopg2-binary \
  +    matplotlib \
  +    astropy \
  +    zmq \
  +    ; do pip3 install $x; done \
  +    && rm -Rf /root/.cache/pip
  +
   # ugly: Tractor's mp_fourier module detects the $CC='icc' exactly
   # These are in /opt/intel/bin, which is on the PATH.
   ENV CC icc
  
positive.code: #ENV CFLAGS -O3 -g -fPIC -xAVX -axMIC-AVX512 -std=gnu99 -pthread
  #ENV CXXFLAGS -O3 -g -fPIC -xAVX -axMIC-AVX512 -std=c++11 -pthread
  
  # Pip installs
  RUN for x in \
      setuptools \
      wheel \
      intel-numpy \
      intel-scipy \
      psycopg2-binary \
      matplotlib \
      astropy \
      photutils \
      fitsio \
      zmq \
      ; do pip3 install $x; done \
      && rm -Rf /root/.cache/pip \
      && echo 1
  
  ENV PYTHON python3
  ENV PYTHON_CONFIG python3-config
  
negative.code: RUN mkdir /root/.qdo && echo "[qdo]" > /root/.qdo/qdorc
  RUN python -c "import astropy"
  
  RUN cd /src/legacypipe/py && git pull && git describe && echo 5
  
  