利用百度地图API实现地址和经纬度互换查询

 import json
 import requests

 def baiduMap(input_para):
     headers = {
         'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit'
                       '/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safar'
                       'i/537.36'
     }
     if not isinstance(input_para, str):
         input_para = str(input_para)
     base_url = 'http://api.map.baidu.com/geocoder/v2/'
     ak = 'your ak'
     output = 'json'
     url = base_url + '?' + input_para + '&output=' + output + '&ak=' + ak
     req = requests.get(url, headers=headers).text
     temp = json.loads(req)
     return temp

 def getLngLat(address):
     place = 'address=' + address
     temp = baiduMap(place)
     if 'result' in temp.keys():
         lat = temp['result']['location']['lat']
         lng = temp['result']['location']['lng']
         return lat, lng
     else:
         print(address + '无法访问')

 # lat_lng: tuple格式
 def getPlace(lat_lng):
     if not isinstance(lat_lng, str):
         lat_lng = str(lat_lng)
     lat_lng = 'location=' + lat_lng[1:-1]
     temp = baiduMap(lat_lng)
     if 'result' in temp.keys():
         return temp['result']['formatted_address']
     else:
         print('经纬度' + lat_lng + '无法访问')