anchor.diff:  # Python libraries.
   RUN apt-get -q update && \
    apt-get install --no-install-recommends -y -q \
  -   python2.7 python-pip python-dev build-essential git mercurial \
  +   python2.7 python3.4 python-pip python-dev build-essential git mercurial \
      libffi-dev libssl-dev libxml2-dev \
      libxslt1-dev libpq-dev libmysqlclient-dev libcurl4-openssl-dev \
      libjpeg-dev zlib1g-dev libpng12-dev && \
  
positive.code: # The Google App Engine base image is debian (wheezy) with ca-certificates
  # installed.
  FROM gcr.io/google_appengine/base
  
  
negative.code: 
  EXPOSE 8080
  
  RUN ln -s /home/vmagent/app /app
  WORKDIR /app
  
  ENV PORT 8080
  
  CMD []
  # The user's Dockerfile must specify an entrypoint with ENTRYPOINT or CMD.
  