python爬虫获取小区经纬度以及结构化地址

class GetAddressInfo:
 def __init__(self,df):
 import pandas
 assert type(df) == pandas.core.frame.DataFrame and ('city' in df.columns) and ('name' in df.columns),\
 'The dataframe is not vailid'
 from bs4 import BeautifulSoup 
 from urllib import request
 import re
 import pandas as pd
 import numpy as np
 import urllib.parse as urp
 self.__data__ = df
 def get_address(self):
 import numpy as np
 self.__data__['小区经度'] = np.nan
 self.__data__['小区纬度'] = np.nan
 self.__data__['小区地址'] = np.nan
 for i in self.__data__.index:
 self.__data__.loc[i,'小区纬度'],self.__data__.loc[i,'小区经度'],self.__data__.loc[i,'小区地址'] =\
      self.__get_neigbour_address__(self.__data__.loc[i,'name'],\
      self.__data__.loc[i,'city'])
 return self.__data__
 def __lat__(self,res):
 try:
 return pd.to_numeric(re.findall('"lat":(.*)',res)[0].split(',')[0])
 except:
 return 0
 def __lng__(self,res):
 try:
 return pd.to_numeric(re.findall('"lng":(.*)',res)[0])
 except:
 return 0
 def __address__(self,res):
 try:
 return re.findall('"address":"(.*)",',res)[0]
 except:
 return 'None'
 
 def __get_neigbour_address__(self,name,city):
 my_ak = ##替换自己的ak
 qurey = urp.quote(name)
 tag = urp.quote('住宅区')
 try:
 url = 'http://api.map.baidu.com/place/v2/search?query='+qurey+'&tag='+tag+'&region='+urp.quote(city)+'&output=json&ak='+my_ak
 req = request.urlopen(url)
 res = req.read().decode()
 lat = self.__lat__(res)
 lng = self.__lng__(res)
 address = self.__address__(res)
 return lat,lng,address
 except:
 return 0,0,'None'
 
 
class ReverseGetAddress:
 def __init__(self,data):
 assert ('小区纬度' in data.columns) and ('小区经度' in data.columns) and ('name' in data.columns),\
 'The DataFrame is not vailid'
 from bs4 import BeautifulSoup 
 from urllib import request
 import re
 import pandas as pd
 import numpy as np
 import urllib.parse as urp
 self.__data__ = data
 def __get_address1__(self,url):
 try:
 req = request.urlopen(url)
 res = req.read().decode()
 address = re.findall('address":"(.*?)"',res)[0]
 return address
 except:
 return 'None1'
 def __to_string__(self,arr):
 return str(arr)
 def __get_address2__(self):
 my_ak = ##替换自己的Ak
 base_url1 = 'http://api.map.baidu.com/geocoder/v2/?callback=renderReverse'
 base_url2 = '&location='
 base_url3 = '&pois=0&radius=1&output=json&pois=1&ak='
 url = base_url1+base_url2+self.__data__['小区纬度'].apply(self.__to_string__)+','\
 +self.__data__['小区经度'].apply(self.__to_string__)+base_url3+my_ak
 return url
 def get_address(self):
 url = self.__get_address2__()
 self.__data__['小区地址'] = url.apply(self.__get_address1__)
 return self.__data__