Prerequisites
Before we can start implementing the ShapeEditor, we need to make sure that the various libraries and tools it uses are installed on your computer. You probably already installed all of these when you worked through the previous chapters of this book, but just in case you haven't, please make sure you have installed the following software:
GDAL/OGR version 1.10 or later
PROJ.4 version 4.8 or later
pyproj version 1.9 or later
PostgreSQL version 9.4 or later
PostGIS version 2.1 or later
psycopg2 version 2.6 or later
Mapnik version 2.2 or later
Django version 1.8 or later