python模拟Get请求保存网易歌曲的url

#coding:utf-8

import requests  
import json  

url = 'http://music.163.com//api/dj/program/byradio?radioId=271002&id=271002&ids=%5B%22271002%22%5D&limit=100&offset=0'  

headers = {  
    'Host': 'music.163.com',  
    'Proxy-Connection': 'keep-alive',  
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.76 Safari/537.36',  
    'Content-Type': 'application/x-www-form-urlencoded',  
    'Accept': '*/*',  
    'Referer': 'http://music.163.com/outchain/player?type =4&id=271002&auto=1&height=430&bg=e8e8e8',  
    'Accept-Encoding': 'gzip, deflate, sdch',  
    'Accept-Language': 'zh-CN,zh;q=0.8,en;q=0.6,zh-TW;q=0.4',  
    'Cookie': 'outlink_h=1579; NETEASE_AUTH_SOURCE=space; NETEASE_AUTH_USERNAME=junlintianxiajun; playliststatus=visible; _ntes_nuid=688eb18445fe95b48abce1e832f4199e; usertrack=ezq0alNDSewrKRvmQjcIAg==; usertrack=ezq0B1Nfqr/AlSuNBAZUAg==; _ntes_nnid=688eb18445fe95b48abce1e832f4199e,1402975311348; JSESSIONID=ebaluB3sO-eAE4LPRcmBu; vjuids=-77f0fed0d.146e06a394e.0.5b912416; __oc_uuid=241a4ea0-08ee-11e4-a950-5198ccf9d747; __utma=187553192.874452700.1405077963.1405077963.1405077963.1; __utmc=187553192; SID=3b76dd6e-cc8e-40eb-8ee2-5696a3946b74; NTES_PASSPORT=kUy84AJ07Dw160XIsu72p3LPj8GkvB3YwsAMabzzKlJN4X0xpQBOS2NhqOaChzcFmV1rfdzmfygnaBqmWQGVWJ4vXAt24J8v.t79KmvEDs2ixKSg9KuUHcm2z; P_INFO=junlintianxiajun@163.com|1410966073|1|mail163|11&15|jis&1410961280&carddav#jis&320100#10#0#0|158337&1|163&mail163&blog|junlintianxiajun@163.com; NTES_SESS=0kUdYqi_Ct0Ir7SHTsjG_gLaItbpPoH.O5Xv2N8UuPGxeMp1Rj2Grz7QiG5AQkDN8FTUCbk8CYaOjpw.QCeNSlLz0wR6A7gn0v7swKyqiFBSuVOwWTf7FolapORjoNTunwXEYbe5W.wAn6uGiucXdbODFYfZuaEfkn7N5O4TL1t0kuNArGnGXz8zk; S_INFO=1411228890|1|0&80##|junlintianxiajun; ANTICSRF=787f683fdb2f9c4e2bf618927cfa140f; vjlast=1386821502.1413912750.21; ne_analysis_trace_id=1413912750268; vinfo_n_f_l_n3=4880b71680abdf9c.1.6.1404179731747.1409297575701.1413912782388; s_n_f_l_n3=4880b71680abdf9c1409297689233; playerid=84534266; JSESSIONID-163AS=ae221221df5cedc2a8d23a73b4e2f289c3f5867453d274c2fd512d648904f5ab1074ba028f5e629495be362f964012d480035d46d3d9ae744a6812691c695c84740a908c5993fc4913cc53044d2dc4ff7ff14e2f2e6b2cf450900282ba49203c04c187afa0f4e154018a53fdac68c718062eb4f84bf4b58b7569d9d802767b12; NETEASE_WDA_UID=2688375#|#1376910246232; MUSIC_U=7895b6d4e20ff9ebdbbdba907fbfff8fc94cd28437c9a97b4f278b01752a1778547307b043ee5661b2f2eb9346b4b12231b299d667364ed3; __csrf=cd2b96ffaee5f493a903b2598467ed6e; __remember_me=true; __utma=94650624.1128035981.1386494921.1419872891.1425794159.245; __utmb=94650624.8.10.1425794159; __utmc=94650624; __utmz=94650624.1389779298.46.2.utmcsr=twebmail.mail.163.com|utmccn=(referral)|utmcmd=referral|utmcct=/js5/main.jsp',  
}  

r = requests.get(url = url,headers = headers)  
    #print(r.text.encode('utf8'))  
result = json.loads(r.text)  

file_to_save = open('mp3link.txt','w')  

for each_item in result['programs']:  
        #print(each_item['mainSong']['mp3Url'])  
    file_to_save.writelines(each_item['mainSong']['mp3Url'] + '\n')  

file_to_save.close()  
print "SaveOver!"  </pre>