anchor.diff:      https://raw.githubusercontent.com/astropy/astropy/master/astropy/utils/iers/data/Leap_Second.dat \
       && rm $HOME/.wget-hsts
   
  -ENTRYPOINT ["/bin/bash", "-c"]
  -CMD ["/bin/bash"]
  -
   RUN python -O -m compileall \
       -x lib2to3 \
       /usr/local/lib/python \
  
positive.code: RUN mkdir /homedir && chmod 777 /homedir
  ENV HOME /homedir
  
  # set prompt and default shell
  SHELL ["/bin/bash", "-c"]
  
  RUN echo "export PS1='[container] \\u@\\h:\\w$ '" >> $HOME/.bashrc \
    # Create config files in $HOME
  
negative.code:     /src/legacypipe/py/{legacypipe,legacyzpts}
  
  # update legacypipe
  RUN cd /src/legacypipe && git pull && git describe && echo 965c && \
    python    -m compileall /src/legacypipe/py/{legacypipe,legacyzpts} && \
    python -O -m compileall /src/legacypipe/py/{legacypipe,legacyzpts}
  
  