anchor.diff:      -DCMAKE_BUILD_TYPE=Release .. \
       -DBUILD_SHARED_LIBS=ON \
       -DDART_BUILD_DARTPY=ON \
  -    && make -j \
  +    && make \
       && make install \
  -    && make -j dartpy \
  +    && make dartpy \
       && make install-dartpy
   
  +# Install python dependencies
  +RUN python3 -m pip install\
  +    numpy
  +
   WORKDIR "/"
  
positive.code:     libopenscenegraph-dev \
      && rm -rf /var/lib/apt/lists/*
  
  # Compile and install DART and dartpy
  COPY . /opt/dart
  WORKDIR /opt/dart
  
negative.code:     software-properties-common \
      && rm -rf /var/lib/apt/lists/*
  
  # Install DART dependencies
  RUN apt-get update \
      && apt-get -y install --no-install-recommends \
      libeigen3-dev \
  