anchor.diff:                         python-pip python-dev python-yaml \
                          python-matplotlib python-scipy
   
  -RUN pip install ipython jinja2 tornado pyzmq pandas jsonschema jupyter && \
  +RUN pip install ipython jinja2 tornado pyzmq cython pandas jsonschema jupyter && \
       ipython kernel install
   
   #############
  
positive.code:     add-apt-repository -y ppa:nginx/stable && \
      add-apt-repository -y ppa:brightbox/ruby-ng
  
  RUN apt-get update && apt-get install -y nginx gradle-3.0 cython python g++ make git
  
  ############
  #  Python  #
  
negative.code:     	    libxft-dev libblas-dev liblapack-dev gfortran libyaml-dev && \
      virtualenv /home/beaker/py3k -p python3 && \
      /home/beaker/py3k/bin/pip install ipython[notebook] jupyter && \
      /home/beaker/py3k/bin/pip install numpy matplotlib scipy jinja2 tornado pyzmq cython pandas pyaml && \
      /home/beaker/py3k/bin/ipython kernel install
  
  ##########
  