anchor.diff:  # Dockerfile to run a Django-based web application
   # Based on an Ubuntu Image
   ############################################################
  -FROM ubuntu:16.04
  +FROM ubuntu:18.04
   MAINTAINER tiago.arasilva@outlook.com
   
   ENV DEBIAN_FRONTEND noninteractive
  
positive.code: # Make pip3 the default pip
  #
  RUN echo 'alias python=python3' >> ~/.bashrc && echo 'alias pip=pip3' >> ~/.bashrc
  RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
  RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
  
  RUN sed -i -e 's/# server_tokens off;/server_tokens off;/g' /etc/nginx/nginx.conf
  
  
negative.code:                        language-pack-en                            \
                         less                                        \
                         libcurl4-openssl-dev                        \
                         libevent-dev                                \
                         libffi-dev                                  \
  					   libgeos-c1v5                                \
                         libmagickwand-dev                           \
  