#! /usr/bin/env /usr/bin/python3
import mapnik

map = mapnik.Map(600,300)
mapnik.load_map(map, 'DataSource-Shape-Variable.xml')
map.zoom_all()
map.zoom( -1.1)

# draw map into cairo surface
img = mapnik.Image(map.width, map.height)
mapnik.render_with_vars(map, img, {"mycolor": "red"})
img.save("render-with-var.png")