text: # -*- coding: utf-8 -*-
  # Created by: ZhaoDongshuang
  # Created on: 18-2-5
  
  import pygal
  
  wm = pygal.maps.world.World()
  wm.title = 'Populations of Countries in North America'
  wm.add('North America', {'ca': 34126000, 'us': 309349000, 'mx': 113423000})
  wm.render_to_file('na_populations.svg')
  
  