Query api.geonames.org site to get flat country informations

countries_iso3166

# -*- coding: utf-8 -*-

"""
    Script to update 'countries.py' if needed
"""

from lxml import objectify
import requests


URL = 'http://api.geonames.org/countryInfo?username=demo'
FILE_PREFIX = """# -*- coding: utf-8 -*-

# These datas comes from %s.
# It allows to have matching keys 'isoAlpha3' (2 chars) and 'isoNumeric'
# according to 2 chars country code
# ie      'JP': {'isoAlpha3': 'JPN', 'isoNumeric': 392}

""" % URL

geo = requests.get(URL)
geonames = objectify.fromstring(geo.text.encode('utf-8'))
countries = {}

countries_elms = geonames.getchildren()

assert len(countries_elms) > 1, "geoname web service response: \n%s" % geonames.status.get('message')

for country in countries_elms:
    countries[country.countryCode] = {
        'isoAlpha3': country.isoAlpha3,
        'isoNumeric': country.isoNumeric,
    }

with open('./countries.py', 'w') as f:
    f.write('%sdatas = %s' % (FILE_PREFIX, str(countries)))