anchor.diff: -FROM alpine:3.7
  +FROM alpine:3.8
   MAINTAINER Thomas Spicer <thomas@openbridge.com>
   
   ENV LANG C.UTF-8
  
positive.code:     && apk add --update --virtual .python-deps \
          postgresql-client \
          mariadb-client \
          mariadb-client-libs \
          mariadb-common \
          py-pip \
          libgfortran \
  
negative.code:         py-numpy \
          freetype \
          libpng \
      && pip install --no-cache-dir awscli setuptools cffi psycopg2 cryptography matplotlib pandas csvkit python-dateutil pytz six wsgiref scipy \
      && mkdir /root/.aws \
      && rm -rf /usr/src/python ~/.cache \
      && rm -Rf /tmp/* \
  