为什么requests获取的text内容跟浏览器看到的response不一样？

phr

本人初学python小白一枚，现在想抓取淘宝详情页的sku库存数据。
代码：

1. # 得到主函数传入的链接
   
2. def getHtmlText(url):
   
3.      try:  # 异常处理
   
4.          # 定制headers
   
5.          myHeaders = {
   
6.              'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36',
   
7.              'Referer': 'https://item.taobao.com/item.htm?spm=a1z0k.7386009.0.d4919233.76361a5a2SKRPF&id=599787646655&_u=t2dmg8j26111'}
   
8.          # 得到你传入的URL链接 设置超时时间3秒
   
9.          r = requests.get(url, headers=myHeaders, proxies=proxies, timeout=3)
   
10.          # 判断它的http状态码
    
11.          r.raise_for_status()
    
12.          # 设置它的编码 encoding是设置它的头部编码 apparent_encoding是从返回网页中分析它的编码格式
    
13.          r.encoding = r.apparent_encoding
    
14.          # 返回源代码
    
15.          return r.text
    
16.      except Exception as err:  # 发生异常返回空
    
17.          traceback.print_exc()
    
18.          return ''
    
19. 
    
20. # 定义主函数 main
    
21. def main():
    
22.      url = 'https://detailskip.taobao.com/service/getData/1/p1/item/detail/sib.htm?             itemId=599787646655&sellerId=2487154935&modules=dynStock,qrcode,viewer,price,duty,xmpPromotion,delivery,activity,fqg,zjys,couponActivity,soldQuantity,page,originalPrice,tradeContract&callback=onSibRequestSuccess'
    
23.      html = getHtmlText(url)  # 得到url传入到你要得到url的函数中

复制代码

得到的text内容是：
onSibRequestSuccess({"rgv587_flag":"sm","url":"https://login.taobao.com/member/login.jhtml?
style=mini&from=sm&full_redirect=false&redirectURL=https%3a%2f%2fdetailskip.taobao.com:443/service/getData/1/p1/item/detail/sib.htm/_____tmd_____/punish%3fx5secdata=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%26x5step=100"})

但是浏览器F12看到的response：
onSibRequestSuccess({"code":{"code":0,"message":"SUCCESS"},"data":{"viewer":{"admin":false,"bs":"105","buyDomain":"buy.taobao.com","buyerId":"730852133","cartDomain":"cart.taobao.com","cc":false,"countryCode":"CN","ctUser":false,"lgin":true,"serviceTab":"ITEM","tkn":"e0ee8bb989d31"},"deliveryFee":{"data":{"areaId":330100,"areaName":"\u6D59\u6C5F\u676D\u5DDE","sendCity":"\u56DB\u5DDD\u6210\u90FD","serviceInfo":{"sku":{"4358028779888":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4358028779889":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4202676161147":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918378":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918379":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4395950319614":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4397053687319":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4197224645644":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4197224645645":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"default":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918376":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918377":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4187699652472":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4197224645642":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4187699652471":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4197224645643":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4197862337532":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918381":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918382":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4397053687320":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4397053687322":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4397053687321":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4358028779890":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4186560724417":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}],"4390640918380":[{"id":"100_-4","info":"\u5FEB\u9012 <span class=\"wl-yen\">￥<\/span>10.00","isDefault":true},{"id":"100_-7","info":"EMS <span class=\"wl-yen\">￥<\/span>23.00"}]}}},"dataUrl":"\/\/detailskip.taobao.com\/json\/deliveryFee.htm","message":"ok","success":true},"originalPrice":{";1627207:28324;":{"price":"58.00"},";1627207:28326;":{"price":"46.00"},"def":{"price":"38.00-1680.00"},";1627207:28320;":{"price":"42.80"},";1627207:80882;":{"price":"58.00"},";1627207:28332;":{"price":"118.00"},";1627207:60092;":{"price":"59.90"},";1627207:3232479;":{"price":"38.00"},";1627207:28340;":{"price":"288.00"},";1627207:132069;":{"price":"78.00"},";1627207:3232483;":{"price":"798.00"},";1627207:3232481;":{"price":"488.00"},";1627207:130164;":{"price":"188.00"},";1627207:107121;":{"price":"39.80"},";1627207:28338;":{"price":"78.00"},";1627207:28335;":{"price":"59.00"},";1627207:28341;":{"price":"1680.00"},";1627207:3232478;":{"price":"58.00"},";1627207:3232484;":{"price":"118.00"},";1627207:3232482;":{"price":"58.00"},";1627207:90554;":{"price":"39.00"},";1627207:3232480;":{"price":"58.00"},";1627207:30156;":{"price":"98.00"},";1627207:28327;":{"price":"58.00"},";1627207:28329;":{"price":"460.00"}},"activity":{},"price":"38.00-1680.00","tradeContract":{"pay":[{"icons":["\/\/img.alicdn.com\/tfs\/TB1dvGWQFXXXXcFaXXXXXXXXXXX-16-16.png","\/\/img.alicdn.com\/tfs\/TB1FdDlQFXXXXa5XpXXXXXXXXXX-32-32.png"],"title":"\u96C6\u5206\u5B9D","url":"\/\/jf.alipay.com"}],"service":[{"desc":"\u672C\u5546\u54C1\u4E0D\u652F\u6301\u4E03\u5929\u65E0\u7406\u7531","icons":["\/\/img.alicdn.com\/tfs\/TB17CbJkeGSBuNjSspbXXciipXa-16-16.png",null],"linkType":1,"title":"\u4E0D\u652F\u63017\u5929\u65E0\u7406\u7531"}]},"dynStock":{"holdQuantity":0,"sellableQuantity":31,"sku":{";1627207:28335;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:28324;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:28326;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:28341;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28320;":{"holdQuantity":0,"oversold":false,"sellableQuantity":3,"stock":3},";1627207:80882;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28332;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:60092;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:3232479;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:3232478;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28340;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:3232484;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:3232482;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:3232483;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:90554;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:3232480;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:3232481;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:130164;":{"holdQuantity":0,"oversold":false,"sellableQuantity":2,"stock":2},";1627207:30156;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:107121;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28338;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28327;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1},";1627207:28329;":{"holdQuantity":0,"oversold":false,"sellableQuantity":1,"stock":1}},"stock":31,"stockType":"normal"},"qrcodeImgUrl":"\/\/gcodex.alicdn.com\/qrcode.do?biz_code=xcode&short_name=a.ZRs8&cmd=createSub&#182;m=id:599787646655;scm:20140619.pc_detail.itemId.0","couponActivity":{"buyerHasMianxi":false,"coupon":{},"showMianxiTips":false},"soldQuantity":{"confirmGoodsCount":"72","soldTotalCount":"97"},"promotion":{"promoData":{},"saleDetailMap":{}}}});

为什么不一样呢？怎样才能取得正确的response并从里面提取库存（stock）呢？
求大佬指点

kaohsing

现在网页不用点js，不用点异步加载，不叫前端。

phr

kaohsing 发表于 2019-12-26 19:12
现在网页不用点js，不用点异步加载，不叫前端。

这？啥意思啊？