Get country code/name by IP address

pip install tornado
pip install geoip2

import os.path

from geoip2.database import Reader as GeoIP2Reader
from tornado import options
from tornado.ioloop import IOLoop
from tornado.web import RequestHandler, Application


class BaseHandler(RequestHandler):

    # download it from maxmind site: http://dev.maxmind.com/geoip/geoip2/geolite2/
    GEOIP_BINARY = 'bin/GeoLite2-Country.mmdb'

    @property
    def country(self):
        try:
            ip = self.request.remote_ip
            geoip = getattr(self.application, '_geoip', None)
            if not geoip:
                geoip_file = os.path.join(
                    os.path.dirname(os.path.realpath(__file__)),
                    self.GEOIP_BINARY)
                geoip = GeoIP2Reader(geoip_file)
                self.application._geoip = geoip
            return geoip.country(ip).country.iso_code
        except Exception as e:
            return None


class CountryHandler(BaseHandler):

    def get(self):
        self.write(str(self.country))


if __name__ == '__main__':
    options.parse_command_line()
    application = Application(
        handlers=[
            (r'/', CountryHandler),
        ],
        debug=True,
    )
    application.listen(8000)
    IOLoop.instance().start()