Python-Geocoding [WARNING!!]

Warning

Please be cautious when you run the code below, especially when you turn on Places API and use text_search in googlemaps!!!

Although requesting Basic Data is free, it could be quite expensive when you geocode address information with text_search. (Price of text_search)

---

To retreive latitude and longitude of specific address of Hong Kong, I subscribe Google Maps Geocoding API and install two packages googleplaces and googlemaps. The first one is thrid-party tool and the second is official one.

pip install python-google-places
pip install --upgrade https://github.com/slimkrazy/python-google-places/zipball/master  ## upgrade package and solve 2,500-request limit

pip install -U googlemaps

Referring to blog of DHogan ^[1], geocoding code is listed below:

from googleplaces import GooglePlaces
import googlemaps
import json  

class GoogleMaps(object):
    """提供google maps服务"""

    def __init__(self):

        self._GOOGLE_MAPS_KEY = "My API Key"
        self._Google_Places = GooglePlaces(self._GOOGLE_MAPS_KEY)
        self._Google_Geocod = googlemaps.Client(key=self._GOOGLE_MAPS_KEY)

    def _text_search(self, query, language=None, location=None):
        """
        根据搜索字符串,请求google API传回推荐的列表
        :param query: 搜索字符串
        :param language: 语言
        :param location: 地区筛选
        :return:
        """
        # lat_lng = {"lat": "22.5745761", "lng": "113.9393772"}
        # 经纬度附近搜索
        # text_query_result = self.self._Google_Places.text_search(query='Gong Yuan', lat_lng=lat_lng)
        # location 为人可认识的名称
        # text_query_result = self.self._Google_Places.text_search(query='Tang Lang Shan', location='shenzhen')
        # 指定语言搜索
        text_query_result = self._Google_Places.text_search(query=query, language=language, location=location)
        return text_query_result.places

1. Tutorial for GoogleMaps API: including Geocoding API，Places API Web Service ↩