如何从经度和纬度转换为国家或城市？

我使用Google的API。

from urllib2 import urlopenimport jsondef getplace(lat, lon):    url = "http://maps.googleapis.com/maps/api/geopre/json?"    url += "latlng=%s,%s&sensor=false" % (lat, lon)    v = urlopen(url).read()    j = json.loads(v)    components = j['results'][0]['address_components']    country = town = None    for c in components:        if "country" in c['types']: country = c['long_name']        if "postal_town" in c['types']: town = c['long_name']    return town, countryprint(getplace(51.1, 0.1))print(getplace(51.2, 0.1))print(getplace(51.3, 0.1))

输出：

(u'Hartfield', u'United Kingdom')(u'Edenbridge', u'United Kingdom')(u'Sevenoaks', u'United Kingdom')