anchor.diff:      software-properties-common wget
   
   # pyne specific dependencies (excluding python libraries)
  -RUN apt-get install -y build-essential git cmake vim emacs gfortran libblas-dev \
  -                       python-pip liblapack-dev libeigen3-dev libhdf5-dev autoconf libtool
  +RUN apt-get install -y build-essential git cmake gfortran libblas-dev \
  +                       python3-pip liblapack-dev libeigen3-dev libhdf5-dev \
  +                       libpython3-dev python3-dev libhdf5-serial-dev hdf5-tools
   
   # need to put libhdf5.so on LD_LIBRARY_PATH
   ENV LD_LIBRARY_PATH /usr/lib/x86_64-linux-gnu
   ENV LIBRARY_PATH /usr/lib/x86_64-linux-gnu
  +
  +# switch to python 3
  +RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 10; \
  +    update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 10;
   
   # upgrade pip and install python dependencies
   ENV PATH $HOME/.local/bin:$PATH
  
positive.code: RUN cd $HOME/opt \
    && mkdir moab \
    && cd moab \
    && git clone https://bitbucket.org/fathomteam/moab \
    && cd moab \
    && git checkout -b Version5.2.0 origin/Version5.2.0 \
    && autoreconf -fi \
    && cd .. \
    && mkdir build \
    && cd build \
    && cmake ../moab/ \
                -DCMAKE_INSTALL_PREFIX=$HOME/opt/moab \
                -DENABLE_HDF5=ON \
                -DBUILD_SHARED_LIBS=ON \
                -DENABLE_PYMOAB=ON \
                -DENABLE_BLASLAPACK=OFF \
                -DENABLE_FORTRAN=OFF \
    && make \
    && make install \
    && cd .. \
  
negative.code: # put MOAB on the path
  ENV LD_LIBRARY_PATH $HOME/opt/moab/lib:$LD_LIBRARY_PATH
  ENV LIBRARY_PATH $HOME/opt/moab/lib:$LIBRARY_PATH
  ENV PYTHONPATH=$HOME/opt/moab/lib/python3.8/site-packages/
  
  RUN cd /root \
      && git clone --branch develop --single-branch https://github.com/svalinn/DAGMC.git DAGMC \
      && mkdir build \
      && cd build \
      && cmake ../DAGMC \
              -DMOAB_DIR=$HOME/opt/moab \
              -DBUILD_STATIC_LIBS=OFF \
              -DCMAKE_INSTALL_PREFIX=$HOME/opt/dagmc \
      && make \
      && make install \
      && cd .. \
      && rm -rf build DAGMC
  
  
  # Install PyNE
  