anchor.diff:  # In order to build from source, need less
   RUN npm install -g less
   
  -RUN apt-get -y install fabric
  +RUN apt-get install -y -q fabric python-sphinx python3-sphinx
   
   RUN mkdir -p /srv/
   WORKDIR /srv/
  
positive.code: FROM ubuntu:14.04
  
  MAINTAINER IPython Project <ipython-dev@scipy.org>
  
  # Make sure apt is up to date
  RUN apt-get update
  
negative.code: 
  # .[all] only works with -e, so use file://path#egg
  # Can't use -e because ipython2 and ipython3 will clobber each other
  RUN pip2 install file:///srv/ipython#egg=ipython[all]
  RUN pip3 install file:///srv/ipython#egg=ipython[all]
  
  # install kernels
  RUN python2 -m IPython kernelspec install-self --system
  RUN python3 -m IPython kernelspec install-self --system
  
  WORKDIR /tmp/
  
  RUN iptest2
  RUN iptest3
  