Pygal Maps World Not Working

问题:

I am trying to create a simple program so as to display the map of central America with their population using Pygal_maps_world.Here's the code for the same

import pygal_maps_world as pa

wm=pa.World()

wm.title="Map of Central America"
wm.add('North America',{'cd': 84949494949,'mx': 494794164,'us': 99794616})

wm.render_to_file('map.svg')

I have tried a few combinations regarding the importing of the World maps to work properly but to no avail and i am not able to create the visualization.

Help me solve this query of mine

Thanks

回答1:

In the recent versions of pygal, you start with the first four lines of this code:

from pygal.maps.world import World

wm = World()
wm.force_uri_protocol = 'http'

wm.title="Map of Central America"
wm.add('North America',{'ca': 84949494949,'mx': 494794164,'us': 99794616})

wm.render_to_file('map.svg')

When I use those first four lines and the rest of your code, your code runs and it highlights the United States and Mexico, but it highlights the Democratic Republic of the Congo rather than Canada. Change the country code to 'ca' for Canada! This then, of course, now shows North America rather than central America, so either change your title or change your country codes.

回答2:

You can also use:

from pygal_maps_world.maps import World

wm = World()

if you open pygal_maps_world plugin physically, you will find a maps.py file and inside that file there is a "World" class. So you can reference that particular file by using module_name.file_name, which in this case is pygal_maps_world.maps and then import that class i.e. "World".